Rotary knife with blade bushing

A powered rotary knife includes a handle, a blade housing, an annular blade, and a blade bushing for rotatably mounting the blade within the housing. The blade housing includes an inner groove that is operable to receive the blade bushing therein. The blade housing and blade bushing are split in order to expand and receive the blade. The blade includes an outer groove that is also operable to receive the blade bushing. Thus, the blade bushing is spaced between the blade housing and blade and rotatably secures the blade within the blade housing.

Blade bushing for rotary knife

A powered rotary knife includes a handle, a blade housing, an annular blade, and a blade bushing for rotatably mounting the blade within the housing. The blade housing includes an inner groove that is operable to receive the blade bushing therein. The blade housing and blade bushing are split in order to expand and receive the blade. The blade includes an outer groove that is also operable to receive the blade bushing. Thus, the blade bushing is spaced between the blade housing and blade and rotatably secures the blade within the blade housing.

Coupling with safety lock of the driveshaft of a hand-tool

A coupling has a safety lock and receives a flexible driveshaft with a tube into a hand-tool. The coupling contains a pinion as part of a drive transmission of the hand-tool and a lever on a handle. An opening of the pinion can be connected to an end of the driveshaft, and the lever engages into a retaining groove of the tube as long as the lever is gripped together with the handle. In a drive position, a direct positive engagement between the driveshaft and the pinion is produced, and the transmission is thus driven. The coupling contains a spring that pushes the driveshaft into a rearward rest position as soon as the lever on the handle is released, whereby the positive engagement between the driveshaft and the pinion is disengaged and the transmission is thus set to rest.

Power operated rotary knife

A two-part rotary knife blade ( 2300, 3300 ) for a power operated rotary knife. The knife blade ( 2300 ) includes a carrier portion ( 2302, 3302 ) and a blade portion ( 2350, 3350 ), the blade portion configured to be received in a nested relationship by the carrier portion and being releasably secured to the carrier portion by an attachment structure ( 2370, 3370 ). The attachment structure ( 2370, 3370 ) including a plurality of projections ( 2372, 3372 ) extending from one of an outer wall ( 2354, 3354 ) of the blade portion ( 2350, 3350 ) and the inner wall ( 2304, 3304 ) of the carrier portion and a plurality of sockets ( 2374, 3374 ) disposed in the other of the outer wall of the blade portion and the inner wall of the carrier portion, each of the plurality of projections being received in a respective different one of the plurality of sockets to releasably secure the blade portion to the carrier portion.

HAND-HELD ELECTRIC CUTTING MACHINE

Provided is a hand-held electric cutting machine having excellent spark control capability, high stability, good usability and high versatility. A unit having: a first guard which covers a part of a disc-shaped cutting tool; a second guard which covers a part of the disc-shaped cutting tool and is rotatably attached to the first guard; a movable guard which is rotatable around outer peripheries of the first guard and the second guard, covers a part of the disc-shaped cutting tool, and is attached on the second guard; and a protector which covers an outside of the movable guard and is attached on the second guard, is attached to a hand-held electric tool serving as a driving source. 1. A hand-held electric cutting machine comprising: a disc-shaped cutting tool which is attached to a rotary drive apparatus; a first guard which is attached to the rotary drive apparatus and covers a part of the disc-shaped cutting tool; a second guard which covers a part of the disc-shaped cutting tool and is rotatably attached to the first guard; a movable guard which is rotatable around outer peripheries of the first guard and the second guard, covers a part of the disc-shaped cutting tool, and is attached on the second guard; and a protector which covers an outside of the movable guard and is attached on the second guard, wherein the first guard, the second guard, and the protector are formed in a shape so that each of lower ends of the first guard, the second guard, and the protector is cut off along a uniform plane. The present invention relates to a hand-held electric cutting machine controlling sparks generated when a steel pipe, a steel sheet or the like is cut with a disc-shaped cutter.Generally, when machining a small-sized steel pipe, steel sheet or the like with a cutting grindstone, the machining work is often performed by a hand-held electric cutting machine represented by a disc grinder with a dedicated guard and base attached thereto as shown in . Sparks generated during ...

POWER OPERATED ROTARY KNIFE WITH VACUUM ATTACHMENT ASSEMBLY

A power operated rotary knife including: a handle assembly, a head assembly and a vacuum attachment assembly. The handle assembly includes an elongated cylindrical handle housing defining a handle assembly longitudinal axis extending through a throughbore of the handle housing. The head assembly includes a rotary knife blade rotatably supported for rotation about an axis of rotation in a blade housing and a frame securing the blade housing to the distal end of the handle assembly in a position offset from the handle housing, the axis of rotation of the rotary knife blade being spaced apart from and parallel to the handle longitudinal axis. The vacuum attachment assembly includes an adapter extending at an angle away from the handle housing such that a central axis of the adapter is transverse to the with respect to the rotary knife blade axis of rotation and the handle assembly longitudinal axis. 121-. (canceled)21. A power operated rotary knife comprising:a handle assembly including an elongated cylindrical handle housing defining a handle assembly longitudinal axis extending through a throughbore in the handle housing;a head assembly coupled to and extending from a distal end of the handle assembly, the head assembly including a rotary knife blade supported by a blade housing for rotation about a central axis of rotation, the rotary knife blade including an annular body having an inner wall and a radially spaced apart outer wall, the inner wall defining a central open region extending from a first end to a spaced apart second end of the annular body, the annular body including a drive section defining a driven gear including a set of gear teeth formed in the outer wall of the annular body, and a blade section adjacent a second end of the annular body, the head assembly further including a frame coupling the blade housing to the distal end of the handle assembly in a position radially offset from the handle housing such that the central axis of rotation of the ...

POWER OPERATED ROTARY KNIFE WITH NOTCHED ROTARY KNIFE BLADE AND TRIM GUIDE

A combination of a rotary knife blade and a trim guide for a power operated rotary knife. The annular rotary knife blade supported for rotation about a central axis of rotation in a direction of rotation and rotating with respect to the trim guide, the knife blade including a blade section extending from an annular body, the lower end of the blade section defining a plurality of circumferentially spaced apart notches including an opening at the lower end and a central open portion defined by a peripheral wall, the peripheral wall including an arcuate cutting portion adjacent the lower end of the blade section. The trim guide including a guide section defining a plurality of circumferentially spaced apart notches extending from a lower end, each of the plurality of notches including a shearing portion in overlapping axial alignment with the arcuate cutting portions of the blade section. 1. A power operated rotary knife comprising:an annular rotary knife blade supported for rotation about a central axis of rotation in a direction of rotation and rotating with respect to a trim guide, the knife blade including an annular body including an inner wall and an outer wall and an upper end and a lower end, the annular body of the rotary knife blade including a bearing surface for rotational support of the rotary knife blade and a driven gear for rotationally driving the rotary knife blade, the rotary knife blade further including a blade section extending from the lower end of the annular body, the blade section including a blade frustoconical wall extending between an upper end of the blade section and a lower end of the blade section, the lower end of the blade section spaced radially inwardly from and axially below the upper end, a plurality of circumferentially spaced apart notches extending from the lower end of the blade section into the blade frustoconical wall, each of the plurality of notches including an opening at the lower end and a central open portion defined ...

BREAKAWAY LUG DRIVE COUPLER OF ROTARY KNIFE

A rotary knife assembly includes a rotary knife with a spinning blade, a motor operable to power the rotary blade, and a flexible drive cable connected between the motor and knife to transmit rotational power to the blade. The assembly includes a safety release feature drivingly intercoupled between the motor and drive cable so as to drivingly disconnect the cable and knife from the motor when excess torque is experienced. The safety release feature is in the form of a breakaway drive lug operable to normally transmit rotational power from the motor to the knife. In the event of binding of the knife or kinking of the drive cable, excess torque serves to break the drive lug in order to disengage the motor from the knife. 1. A rotary knife assembly , comprising:a motor including a rotatable drive shaft;a rotary knife including a shiftable blade operable to be powered by said motor;an elongated, flexible drive cable having proximal and distal ends, with said proximal end drivingly connected to said rotary knife; anda drive connection assembly operably coupled between said motor drive shaft and said distal end of said cable, so that the drive cable is operable to transmit rotational power from the motor to the blade,said drive connection assembly including safety release structure operable to disengage said motor from said drive cable when excess torque is applied to the safety release structure corresponding with binding of the knife or kinking of the drive cable,said safety release structure including a breakaway drive lug having opposed end sections and an intermediate breakaway section,said end sections being operably coupled with the drive shaft and the drive cable, respectively,said breakaway section operable to break when the excess torque is applied to said drive lug.2. The knife assembly of claim 1 , said breakaway section being of reduced cross-sectional area relative to the cross-sectional areas of adjacent portions the end sections.3. The knife assembly of ...

POWER OPERATED ROTARY KNIFE WITH VACUUM ATTACHMENT ASSEMBLY

A power operated rotary knife including: a handle assembly, a head assembly and a vacuum attachment assembly. The handle assembly includes an elongated cylindrical handle housing defining a handle assembly longitudinal axis extending through a throughbore of the handle housing. The head assembly includes a rotary knife blade rotatably supported for rotation about an axis of rotation in a blade housing and a frame securing the blade housing to the distal end of the handle assembly in a position offset from the handle housing, the axis of rotation of the rotary knife blade being spaced apart from and parallel to the handle longitudinal axis. The vacuum attachment assembly includes an adapter extending at an angle away from the handle housing such that a central axis of the adapter is transverse to the with respect to the rotary knife blade axis of rotation and the handle assembly longitudinal axis. 1. A power operated rotary knife comprising:a handle assembly including an elongated cylindrical handle housing defining a handle assembly longitudinal axis extending through a throughbore in the handle housing;a head assembly coupled to and extending from a distal end of the handle assembly, the head assembly including a rotary knife blade supported by a blade housing for rotation about a central axis of rotation, the rotary knife blade including an annular body having an inner wall and a radially spaced apart outer wall, the inner wall defining a central open region extending from a first end to a spaced apart second end of the annular body and a drive section adjacent a first end of the annular body, the drive section defining a driven gear including a set of gear teeth formed in the outer wall of the annular body, and a blade section adjacent a second end of the annular body, the head assembly further including a frame securing the blade housing to the distal end of the handle assembly in a position radially offset from the handle housing such that the central axis of ...

POWER OPERATED ROTARY KNIFE WITH VACUUM ATTACHMENT ASSEMBLY

A power operated rotary knife including: a handle assembly, a head assembly and a vacuum attachment assembly. The handle assembly includes an elongated cylindrical handle housing defining a handle assembly longitudinal axis extending through a throughbore of the handle housing. The head assembly includes a rotary knife blade rotatably supported for rotation about an axis of rotation in a blade housing and a frame securing the blade housing to the distal end of the handle assembly in a position offset from the handle housing, the axis of rotation of the rotary knife blade being spaced apart from and parallel to the handle longitudinal axis. The vacuum attachment assembly includes an adapter including an upper boss affixed to the frame and a body for receiving a vacuum hose. A central axis of the adapter is parallel with respect to the rotary knife blade central axis and the handle assembly longitudinal axis. 1. A power operated rotary knife comprising:an elongated handle assembly defining a handle assembly longitudinal axis;a head assembly coupled to and extending from a distal end of the handle assembly, the head assembly including a rotary knife blade supported by a blade housing for rotation about a central axis of rotation, the rotary knife blade including an annular body having an inner wall and a radially spaced apart outer wall, the inner wall defining a central open region extending from a first end to a spaced apart second end of the annular body and a drive section adjacent a first end of the annular body, the drive section defining a driven gear including a set of gear teeth formed in the outer wall of the annular body, and a blade section adjacent a second end of the annular body, the head assembly further including a frame, the blade housing and the handle assembly releasably coupled to the frame, the blade housing being radially offset from the handle assembly longitudinal axis such that the central axis of rotation of the rotary knife blade is spaced ...

ECCENTRIC BLADE HOUSING FOR ROTARY KNIFE

A rotary knife includes a frame, an annular blade, and a blade housing mounted to the frame. The housing presents a circumferential mounting surface in contact with the frame. The housing supports the blade on the frame for rotation about a central axis. The housing includes a blade-supporting race defined along a circle centered on the central axis. The mounting surface is defined along a circular arc with a center point spaced from the central axis, such that the blade-supporting race and mounting surface are eccentric relative to one another. The housing presents opposite inner and outer annular faces. At least one of the faces presents a proximal-most end in contact with the frame and a distal-most end spaced from the frame. The proximal-most end is spaced from the central axis a first distance. The distal-most end is spaced from the central axis a second distance. The distances are different. 1. A rotary knife comprising:a frame;an annular blade; anda blade housing mounted to the frame, with the housing presenting a circumferential mounting surface in contact with the frame,said housing supporting the blade on the frame for rotation about a central axis,said housing including a blade-supporting race defined along a circle centered on the central axis,said mounting surface of the housing being defined along a circular arc with a center point spaced from the central axis, such that the blade-supporting race and mounting surface are eccentric relative to one another.2. The rotary knife as claimed in claim 1 ,said center point being closer to the frame than the central axis.3. The rotary knife as claimed in claim 1 ,said housing presenting opposite inner and outer annular faces,one of said faces having a mounting portion along which the mounting surface is defined, with a remaining portion of said one of the faces being spaced from the frame.4. The rotary knife as claimed in claim 3 ,said remaining portion of said one of the faces being arcuate and centered on the ...

TOOL FOR REMOVAL OF MEAT PIECES SUCH AS TENDERLOIN FROM A CARCASS

The invention relates to a tool for manual or especially automatic removal of tenderloins from half-carcasses of slaughtered animals. The tool comprises a circular knife blade, a blade housing supporting the knife blade, and a movable knife blade protector. The tool is connected to a motor capable of driving the knife blade. A tenderloin is partly cut free with the knife, the knife blade protector is activated to protect the knife blade and the tool is used to pull the tenderloin free from the half-carcass without damaging the tenderloin with the knife. The tool can be arranged on a robot and can be used for automatic removal of tenderloins from half-carcasses at slaughterhouses. 1. A meat piece removing tool , said tool comprising:a round or circular knife blade with a cutting edge;a circular blade housing; anda movable knife blade protector capable of moving between a position where the cutting edge of the circular knife blade is uncovered or exposed and a position where the cutting edge of the circular knife blade is covered.2. The tool according to claim 1 , said tool further comprising a round or circular cover.3. The tool according to claim 1 , said tool further comprising a motor configured for driving the knife blade.4. The tool according to claim 1 , said tool further comprising spring means allowing the tool to be adaptive.5. The tool according to claim 1 , further comprising knife blade protector moving means claim 1 , and wherein said knife blade protector moving means is connected to the knife blade protector and configured for moving the knife blade protector from a protecting position where the knife blade protector protrudes over the cutting edge of the round or circular knife blade to a non-protecting position where the knife blade protector is retracted and the cutting edge of the round or circular knife blade is exposed.6. The tool according to claim 1 , further comprising a cone with a quick-acting coupling.7. A method for removing a meat piece ...

CAM-ACTUATED SPLIT BLADE HOUSING FOR POWER OPERATED ROTARY KNIFE

A blade housing assembly for a power operated rotary knife including a split blade housing and a cam mechanism for changing a blade housing diameter between blade supporting and blade changing positions. The split blade housing includes an annular blade support section, a mounting section and a split extending through the mounting section and an inner wall of the blade support section and defining a split distance between first and second circumferential ends of the inner wall. The split includes a radial split section and an angled split section adjacent the inner wall. The mounting section includes first and second body portions on opposite sides of the split. The cam mechanism includes a cam plate bridging the first and second body portions and a cam member rotatably supported by the cam plate. The cam member is rotatable between closed and open positions to change the blade housing diameter. 120-. (canceled)21. A blade housing assembly for rotatably supporting an annular rotary knife blade of a power operated rotary knife , the blade housing assembly comprising:a split blade housing including a mounting section including an inner wall and an outer wall radially spaced from the inner wall and a split extending through the inner wall of the mounting section and defining a split distance between first and second circumferential ends of the inner wall, the mounting section including a first body portion and a second body portion on opposite sides of the split, the first body portion including a first cam slot having a first end portion and a spaced apart second end portion; anda cam mechanism including: a cam plate bridging the first and second body portions of the mounting section of the split blade housing; and a cam member rotatably supported by the cam plate, the cam member rotatable between a first, closed position and a second, open position and including a first cam pin received in the first cam slot of the first body portion of the mounting section of the ...

LOW FRICTION ROTARY KNIFE

A power operated knife comprises a blade supporting structure supporting an annular blade for rotation about a central axis. The blade and blade supporting structure are engagable along bearing contact locations that are spaced apart in a direction parallel to the axis so that the blade is stabilised both radially and axially as the knife operates. The blade supporting structure comprises a split blade housing member that is radially expandible and contractible to receive the blade. The split blade housing member and blade engage along relatively short lines of bearing contact that serve to minimize friction and blade heating when the knife operates. The bearing locations are spaced apart both circumferentially around the blade perimeter and in the direction of the axis so that the blade position is stabilized during operation of the knifes. 123-. (canceled)24. A rotary knife blade comprisinga rotatable annular body defining first and second axial ends, the body disposed about a central axis; andan annular blade section rotatable with the annular body and projecting axially from the first axial end of the body;the rotatable annular body comprised of a wall defining a radially outer surface disposed between said first and second axial ends, and an annular bearing bead extending outwardly from the radially outer surface, the bearing bead spaced axially from the blade section and comprising a first bearing surface and an axially spaced apart second bearing surface, the first and second bearing surfaces converge proceeding in opposite axial directions.25. The rotary knife blade of wherein the first and second bearing surfaces are arcuate in cross section.26. The rotary knife blade of wherein the annular bearing bead is substantially semicircular in cross section.27. The rotary knife blade of wherein the annual bearing bead extends continuously about the radially outer surface of the wall of the rotatable annular body.28. The rotary knife blade of wherein the radially ...

POWER OPERATED ROTARY KNIFE

A rolling bearing strip for a power operated rotary knife providing bearing support for rotation of a rotary knife blade with respect to a blade housing. The rolling bearing strip includes: a plurality of rolling bearings disposed in spaced apart relation; and a flexible separator cage for positioning the plurality of spaced apart rolling bearings, the flexible separator cage including interlocking first and second ends, the first end of the separator cage including a wall defining a projecting member and the second end of the separator cage including a wall defining a receiving member, the first end projecting member and the second end receiving member being in opposed facing relationship and the first end projecting member extending into the second end receiving member to secure the first end to the second end and form an annular, continuous rolling bearing ring. 1. A rolling bearing strip for a power operated rotary knife providing bearing support for rotation of a rotary knife blade with respect to a blade housing , the rolling bearing strip comprising:a plurality of rolling bearings disposed in spaced apart relation; anda flexible separator cage for positioning the plurality of rolling bearings, the flexible separator cage including interlocking first and second ends, the first end of the separator cage including a wall defining a projecting member and the second end of the separator cage including a wall defining a receiving member, the first end projecting member and the second end receiving member being in opposed facing relationship and the first end projecting member extending into the second end receiving member to secure the first end to the second end and form a continuous ring.2. The rolling bearing strip of wherein the first end projecting member comprises a projecting tab extending transversely from the wall of the first end and the second end receiving member comprises a slot extending radially into the wall of the second end.3. The rolling bearing ...

Power operated rotary knife

A power operated rotary knife including an annular rotary knife blade supported for rotation in a blade housing. The rotary knife blade including a body and a blade section extending from the body. The body section including an outer wall including an upper, middle and lower portions. The upper portion of the outer wall including a bearing race extending radially inwardly into the outer wall. The lower portion of the outer wall including the driven gear. In one embodiment, the intermediate portion includes an annular land having an outer surface defining a radially outermost portion of the outer wall of the body, the outer surface of the annular land being radially outward of the driven gear and the bearing race. In another embodiment, the intermediate portion includes an annular channel having an inner surface being radially inward of first and second ends of the bearing race and the driven gear.

POWER OPERATED ROTARY KNIFE

A power operated rotary knife including an annular rotary knife blade supported for rotation in a blade housing. The rotary knife blade including a body and a blade section extending from the body. The body section including an outer wall including an upper, middle and lower portions. The upper portion of the outer wall including a bearing race extending radially inwardly into the outer wall. The lower portion of the outer wall including the driven gear. In one embodiment, the intermediate portion includes an annular land having an outer surface defining a radially outermost portion of the outer wall of the body, the outer surface of the annular land being radially outward of the driven gear and the bearing race. In another embodiment, the intermediate portion includes an annular channel having an inner surface being radially inward of first and second ends of the bearing race and the driven gear. 1. An annular rotary knife blade for rotation about a central axis of rotation in a power operated rotary knife , the rotary knife blade comprising:a body and a blade section extending axially from the body, the body including an upper end and a lower end spaced axially apart and an inner wall and an outer wall spaced radially apart, the outer wall of the body including an upper portion adjacent the upper end of the body, a lower portion adjacent a lower end of the body, and a middle portion disposed between the upper and lower ends of the body, the body and the blade section being radially centered about the central axis of rotation;the blade section extending from the lower end of the body;the upper portion of the outer wall of the body including an annular bearing race axially spaced from an upper end of the body, the middle portion of the outer wall of the body including an annular land axially below the annular bearing race, and the lower portion of the outer wall of the body including an annular driven gear axially below the annular land;the annular bearing race ...

SPLIT BLADE HOUSING WITH EXPANSION SLEEVE ASSEMBLY FOR POWER OPERATED ROTARY KNIFE

A blade housing assembly for a power operated rotary knife including a split blade housing and an expansion sleeve assembly. The split blade housing including an annular blade support section and a mounting section extending from the blade support section. The mounting section includes a split extending through the mounting section and includes a first body portion and a second body portion on opposite sides of the split, the first body portion including a slot extending axially through the first body portion and movable between blade supporting and blade changing positions. The expansion sleeve assembly extends through the slot and includes a split sleeve changeable between first and second circumferences. The expansion sleeve assembly further including a fastener extends through the split sleeve and, when engaged with the split sleeve, maintains the split sleeve in the first circumference and secures the first body portion in the blade supporting position. 1. A blade housing assembly for a power operated rotary knife , the blade housing assembly comprising:a split blade housing including:an annular blade support section including an inner wall;a mounting section extending from the blade support section; anda split extending through the mounting section and the inner wall of the blade support section and defining a split distance between first and second circumferential ends of the inner wall, the mounting section including a first body portion and a second body portion on opposite sides of the split, the first body portion including a slot extending axially through the first body portion having an enlarged first and second end portions connected by a passageway, the first body portion being movable with respect to the second body portion between a first blade supporting position wherein the split distance between the first and second circumferential ends of the inner wall is a first value and a second blade changing position wherein the split distance between the ...

ROTARY KNIFE PROVIDING MATERIAL REMOVAL VIA SUCTION

A vacuum rotary knife is fluidly connectable to a vacuum source conduit. The rotary knife includes an annular blade and a knife head. The knife head supports the blade for rotation about a rotational axis. The knife head presents a vacuum port fluidly connectable to the conduit. The vacuum port is spaced from the blade such that the knife head defines a suction pathway extending between the blade and the vacuum port. 1. A vacuum rotary knife fluidly connectable to a vacuum source conduit , said rotary knife comprising:an annular blade; anda knife head supporting the blade for rotation about a rotational axis,said knife head presenting a vacuum port fluidly connectable to the conduit,said vacuum port being spaced from the blade such that the knife head defines a suction pathway extending between the blade and the vacuum port,said suction pathway being at least substantially devoid of any openings.2. The vacuum rotary knife as claimed in claim 1 ,said blade including axially opposite first and second blade ends, with the first blade end defining a cutting edge,said knife head presenting a proximal head end spaced from the vacuum port,said second blade end and said proximal head end being adjacent one another to define a blade/head interface,said blade/head interface being the only opening between the cutting edge and the vacuum port.3. The vacuum rotary knife as claimed in claim 2 ,said knife head including a blade housing and a conduit connector,said blade housing rotatably supporting the blade,said conduit connector defining the vacuum port,said conduit connector including opposite proximal and distal connector ends and a continuous inner surface extending between the connector ends,said inner surface at least partially defining the suction pathway.4. The vacuum rotary knife as claimed in claim 3 ,said proximal connector end defining the proximal head end,said vacuum port being defined at the distal connector end.5. The vacuum rotary knife as claimed in claim 1 , ...

Power operated rotary knife

A power operated rotary knife () including: an annular rotary knife blade () including a knife blade bearing surface (); a blade housing () defining a blade housing bearing surface (); and a blade-blade housing bearing structure () disposed between the knife blade bearing surface () and the blade housing bearing surface (). The blade-blade housing bearing structure () includes a rolling bearing strip () having a plurality of rolling bearings (), such as ball bearings, disposed in spaced apart relation in a flexible separator cage (). The rolling bearing strip () traverses through an annular passageway () defined between the knife blade bearing surface () and the blade housing bearing surface () to secure the knife blade () to the blade housing () and support the knife blade for rotation about a central axis (R) with respect to the blade housing (). 1. A power operated rotary knife comprising:a head assembly including a gearbox assembly, an annular rotary knife blade, a blade housing, and a blade-blade housing bearing structure;the blade housing coupled to the gearbox assembly and including an annular blade support section defining a bearing surface formed on an inner wall of the annular blade support section;the annular rotary knife blade including a body and a blade section extending axially from the body, the body including an upper end and a lower end spaced axially apart and an inner wall and an outer wall spaced radially apart, the blade section extending from the lower end of the body, the outer wall defining a knife blade bearing surface and a set of gear teeth, the set of gear teeth being axially spaced from the upper end of the body and from the knife blade bearing surface;the blade-blade housing bearing structure disposed between the knife blade bearing surface and the blade housing bearing surface to support the knife blade for rotation with respect to the blade housing; anda gear train of the gearbox assembly, the gear train including a drive gear having ...

Power operated rotary knife with notched rotary knife blade and trim guide

A power operated rotary knife assembly including a power operated rotary knife having an annular rotary knife blade, a trim guide, and a drive mechanism for driving the rotary knife blade about an axis of rotation. The assembly also includes a portable power unit, a vacuum assembly and a flexible shaft drive transmission coupled between the power operated rotary knife and the portable power unit. The portable power unit includes a drive motor assembly providing a rotational power source which is operatively coupled to the drive mechanism through the flexible drive transmission to rotate the rotary knife blade. The portable power unit also includes a blower assembly providing vacuum pressure at an inlet duct side, the vacuum assembly being in fluid communication with the inlet duct side to generate a vacuum pressure condition in a region of a cutting opening defined by the rotary knife blade and the trim guide.

INTEGRATED SHAVING MECHANISM

An integrated shaving mechanism (ISM) comprises a 28- x 50-mm perforated arbor of 40-mm cylindrical radius supporting a 50-μm 300-mg inverted-headfoil-like cutterfoil with a 25×40-mm cutting pattern, held slideably under an attached complementary-patterned headfoil. Arbor, cutterfoil, and headfoil provide a few-mm thick shaving mechanism coupled to a shaver body having a motor and eccentric drive shaft that in minor design variations scans the cutterfoil either ±-mm in reciprocation (R-ISM) or -mm-R in circulation (C-ISM) at 0.K-cpm. With its 10-cmarea of 0.7-mm-spaced cutting edges capable of firm facial contact, it cuts short hairs at up to 10× the rate of conventional shavers for fast closest-cutting. Arbor-supported cutterfoils and headfoils can be fabricated as thin and lightweight monolayers and multilayers of hard materials and coatings by mechanical and non-mechanical processes. ISMs can be embodied in the size and shape of reciprocator and rotary shavers. 1. An arbor for a shaver comprising:a body of firm material in shaver head shape incorporating means for attaching a headfoil, the body having a lower portion with means for coupling to a shaver body,the arbor having an upper surface with the shape of a desired cutting surface, with support bearing and alignment means for supporting in the cutting surface form,a shaver cutterfoil, held in contact with the body of the arbor by an attached headfoil movably in a cutting motion, having upper cutting means for cutting short hairs cooperatively with the headfoil, and lower drive bearing and complementary alignment means that allow the shaver cutterfoil to be driven in the cutting motion against the headfoil, their interface constituting the cutting surface, the shaver cutterfoil and headfoil each being a cutting element,{'b': '1', 'the arbor also having openings allowing entry of hairs through the cutting elements for cutting, and for passage of cut hairs, p whereby, the arbor fitted with the shaver cutterfoil ...

POWER OPERATED ROTARY KNIFE

A power operated rotary knife including an annular rotary knife blade supported for rotation in a blade housing. The rotary knife blade including a body and a blade section extending from the body. The body includes an outer wall including an arcuate surface having an upper region extending from a first upper end portion to a second intermediate portion and a lower region extending from the second intermediate portion to a third lower end portion. A plurality of gear teeth extend downwardly from the upper end of the body, each of the plurality of gear teeth including an outer peripheral face forming a portion of the upper region of the arcuate surface of the outer wall. The body outer wall includes a bearing surface having a lower bearing face in the lower region of the arcuate surface and an upper bearing face in the upper region of the arcuate surface. 135-. (canceled)36. An annular rotary knife blade for rotation about a central axis of rotation in a power operated rotary knife , the annular rotary knife blade comprising:a body and a blade section extending from the body;the body including a first end and an axially spaced apart second end and an inner wall and a radially spaced apart outer wall, the outer wall of the body including a first surface protruding outwardly with respect to the central axis of rotation, the first surface including an upper region and a lower region, the upper region of the first surface being axially closer to the first end of the body and the lower region of the first surface being axially closer to the second end of the body;the body further including a driven gear comprising a plurality of gear teeth, the plurality of gear teeth including outer surfaces comprising at least a part of the first surface; andthe outer wall of the body further including a first bearing surface and a second bearing surface for rotatably supporting the annular rotary knife blade for rotation about the central axis of rotation, the first bearing surface ...

ROTARY KNIFE PROVIDING MATERIAL REMOVAL VIA SUCTION

A vacuum rotary knife is fluidly connectable to a vacuum source conduit. The rotary knife includes an annular blade and a knife head. The knife head supports the blade for rotation about a rotational axis. The knife head presents a vacuum port fluidly connectable to the conduit. The vacuum port is spaced from the blade such that the knife head defines a suction pathway extending between the blade and the vacuum port. 1. A vacuum rotary knife fluidly connectable to a vacuum source conduit , said rotary knife comprising:an annular blade; anda knife head supporting the blade for rotation about a rotational axis,said knife head presenting a vacuum port fluidly connectable to the conduit,said vacuum port being spaced from the blade such that the knife head defines a suction pathway extending between the blade and the vacuum port,said suction pathway being at least substantially devoid of any openings,said blade including axially opposite first and second blade ends, with the first blade end defining a cutting edge,said knife head presenting a proximal head end spaced from the vacuum port,said proximal head end extending endlessly about the suction pathway and along the second blade end, with the second blade end and the proximal head end being adjacent one another to define a blade/head interface.2. The vacuum rotary knife as claimed in claim 1 ,said blade/head interface being the only opening between the cutting edge and the vacuum port.3. The vacuum rotary knife as claimed in claim 2 ,said knife head including a blade housing and a conduit connector,said blade housing rotatably supporting the blade,said conduit connector defining the vacuum port,said conduit connector including opposite proximal and distal connector ends and a continuous inner surface extending between the connector ends,said inner surface at least partially defining the suction pathway.4. The vacuum rotary knife as claimed in claim 3 ,said proximal connector end defining the proximal head end,said ...

POWER OPERATED ROTARY KNIFE

A two-part rotary knife blade () for a power operated rotary knife. The knife blade () includes a carrier portion () and a blade portion (), the blade portion configured to be received in a nested relationship by the carrier portion and being releasably secured to the carrier portion by an attachment structure (). The attachment structure () including a plurality of projections () extending from one of an outer wall () of the blade portion () and the inner wall () of the carrier portion and a plurality of sockets () disposed in the other of the outer wall of the blade portion and the inner wall of the carrier portion, each of the plurality of projections being received in a respective different one of the plurality of sockets to releasably secure the blade portion to the carrier portion. 150-. (canceled)51. An annular rotary knife blade for rotation about an axis of rotation in a power operated rotary knife , the rotary knife blade comprising:an annular carrier portion including a first end and an axially spaced apart second end, an outer wall and a radially inward spaced apart inner wall extending respectively between the first end and the second end, the carrier portion including a set of gear teeth and a knife blade bearing surface and a plurality of projections extending from the inner wall of the carrier portion and spaced from the first end and the second end of the carrier portion;an annular blade portion including a first end and an axially spaced apart second end, an outer wall and a radially inward spaced apart inner wall extending respectively between the first end and the second end, and a cutting edge at the blade portion second end, the blade portion configured to be received in a nested relationship by the carrier portion and including a plurality of sockets disposed in the outer wall of the blade portion, each of the plurality of projections being received in a respective different one of the plurality of sockets of the carrier portion to releasably ...

POWER OPERATED ROTARY KNIFE

A power operated rotary knife including an annular rotary knife blade supported for rotation in a blade housing. The rotary knife blade including a body and a blade section extending from the body. The body includes an outer wall including an arcuate surface having an upper region extending from a first upper end portion to a second intermediate portion and a lower region extending from the second intermediate portion to a third lower end portion. A plurality of gear teeth extend downwardly from the upper end of the body, each of the plurality of gear teeth including an outer peripheral face forming a portion of the upper region of the arcuate surface of the outer wall. The body outer wall includes a bearing surface having a lower bearing face in the lower region of the arcuate surface and an upper bearing face in the upper region of the arcuate surface. 1. An annular rotary knife blade for rotation about a central axis of rotation in a power operated rotary knife , the annular rotary knife blade comprising:a body and a blade section extending from the body, the body and the blade section being radially centered about the central axis of rotation;the body including a first end and a second end spaced axially below the first end and an inner wall and an outer wall spaced radially apart, the outer wall of the body including an arcuate surface extending from an upper end portion through an intermediate portion to a lower end portion, the upper end portion of the arcuate surface being axially closer to the first end of the body than the intermediate portion and the lower end portion and the lower end portion of the arcuate surface being axially closer to the second end of the body than the intermediate portion and the upper end portion, the arcuate surface being convex radially outward with respect to the central axis of rotation, the arcuate surface including an upper region extending between the upper end portion and the intermediate portion and a lower region ...

CAM-ACTUATED SPLIT BLADE HOUSING FOR POWER OPERATED ROTARY KNIFE

A blade housing assembly for a power operated rotary knife including a split blade housing and a cam mechanism actuatable for changing a blade housing diameter between a blade supporting position and a blade changing position. The blade housing including an annular blade support section, a mounting section and a radially extending split extending through the mounting section and an inner wall of the blade support section and defining a split distance between first and second circumferential ends of the inner wall. The mounting section includes a first body portion and a second body portion on opposite sides of the radially extending split. The cam mechanism includes a cam plate bridging the first and second body portions and a cam member rotatably supported by the cam plate. The cam member is rotatable between a first, closed position and a second, open position to change the blade housing diameter. 1. A blade housing assembly for supporting an annular rotary knife blade of a power operated rotary knife for rotation about a central axis of rotation , the blade housing assembly comprising:a split blade housing including: an annular blade support section, an inner wall of the blade support section defining a blade bearing region; a mounting section extending from the blade support section and including a split extending though the inner wall of the blade support section and defining a split distance between first and second circumferential ends of the inner wall; the mounting section including a first body portion and a second body portion on opposite sides of the split, the first body portion including a first surface and an axially spaced apart second surface including a first cam slot having a first end portion and a spaced apart second end portion; anda cam mechanism including: a cam plate bridging the first and second body portions of the mounting section of the split blade housing; and a cam member rotatably supported by the cam plate, the cam member rotatable ...

ROTARY KNIFE BLADE WITH DOUBLE BEVELED INSIDE SURFACE

A rotary knife includes a rotatable annular blade. The blade includes a blade wall presenting an annular inner surface terminating at a cutting edge. The annular inner surface includes a first section and a second section, with the first section extending from the cutting edge and the second section being located further from the cutting edge than the first section. The first and second sections define first and second angles, respectively, relative to an imaginary plane transverse to the axis about which blade rotates. The second angle is greater than the first angle. 1. An annular blade for a rotary knife , wherein the knife includes a housing for supporting the blade , said blade comprising:a support section configured to be rotatably supported on the housing for rotational movement about an axis; andan annular inner blade surface that terminates at a cutting edge,said inner blade surface including first and second sections, with the first section extending from the cutting edge and the second section being located further from the cutting edge than the first section,said first and second sections of the inner blade surface being angled relative to one another.2. The annular blade of claim 1 ,said inner blade surface generally tapering inwardly toward the cutting edge.3. The annular blade of claim 2 ,said first and second sections of the inner blade surface cooperatively defining an obtuse angle therebetween.4. The annular blade of claim 2 ,said first and second sections being immediately adjacent one another.5. The annular blade of claim 3 ,each of said first and second sections of the inner blade surface being generally frusto-conical in shape,6. The annular blade of claim 3 ,said first section defining a first angle relative to an imaginary plane transverse to the axis,said second section defining a second angle relative to the imaginary plane,said second angle being greater than the first angle.7. The annular blade of claim 6 ,said second angle being at least ...

CAM-ACTUATED SPLIT BLADE HOUSING FOR POWER OPERATED ROTARY KNIFE

A blade housing assembly for a power operated rotary knife including a split blade housing and a cam mechanism for changing a blade housing diameter between blade supporting and blade changing positions. The split blade housing includes an annular blade support section, a mounting section and a split extending through the mounting section and an inner wall of the blade support section and defining a split distance between first and second circumferential ends of the inner wall. The split includes a radial split section and an angled split section adjacent the inner wall. The mounting section includes first and second body portions on opposite sides of the split. The cam mechanism includes a cam plate bridging the first and second body portions and a cam member rotatably supported by the cam plate. The cam member is rotatable between closed and open positions to change the blade housing diameter. 120-. (canceled)21. A blade housing assembly for rotatably supporting an annular rotary knife blade of a power operated rotary knife , the blade housing assembly comprising:a split blade housing including a mounting section including an inner wall and an outer wall radially spaced from the inner wall and a split extending through the inner wall and the outer wall of the mounting section and defining a split distance between first and second circumferential ends of the inner wall, the mounting section including a first body portion and a second body portion on opposite sides of the split, the first body portion including a first cam slot; anda cam mechanism including: a cam plate bridging the first and second body portions of the mounting section of the split blade housing; and a cam member rotatably supported by the cam plate, the cam member rotatable between a first, closed position and a second, open position and including a first cam pin received in the first cam slot of the first body portion of the mounting section of the blade housing, in the first, closed position of ...

MOVEABLE LUBRICATION ASSEMBLY FOR POWER OPERATED ROTARY KNIFE

A power operated rotary knife () and method of operation includes an annular rotary blade (). The knife further comprises a head assembly () extending from a handle assembly (), the head assembly for rotatably supporting the annular rotary blade. The knife also includes a drive mechanism () disposed within the head assembly comprising a pinion gear () and a pinion shaft () rotatably disposed within a bushing (), the drive mechanism being operatively coupled to the annular rotary blade, rotating the annular blade during use. A movable lubrication assembly () supported along a frame body between the handle assembly and the annular rotary blade, the rotatable lubrication assembly being rotatably disposed about a longitudinal axis of the handle assembly and providing a lubrication path () extending from a lubrication adapter () to the pinion gear (). 1. A power operated rotary knife having an annular rotary blade , the rotary knife comprising:a head assembly extending from a handle assembly, the head assembly for rotatably supporting an annular rotary blade;a drive mechanism disposed within the head assembly comprising a pinion gear and a pinion shaft rotatably disposed within a bushing, the drive mechanism being operatively coupled to said annular rotary blade, rotating said annular blade during use;a movable lubrication assembly supported along a frame body between said handle assembly and said annular rotary blade, the rotatable lubrication assembly being rotatably disposed about a longitudinal axis of said handle assembly and providing a lubrication path extending from a lubrication adapter to said pinion gear.2. The power operated rotary knife of claim 1 , wherein said movable lubrication assembly further comprises a chamber for holding lubrication to be provided along said lubrication path.3. The power operated rotary knife of claim 1 , wherein said moveable lubrication assembly further comprises an annular support rotatably connected to said frame assembly claim ...

Power operated rotary knife

A rolling bearing strip for a power operated rotary knife providing bearing support for rotation of a rotary knife blade with respect to a blade housing. The rolling bearing strip includes: a plurality of rolling bearings disposed in spaced apart relation; and a flexible separator cage for positioning the plurality of spaced apart rolling bearings, the flexible separator cage including interlocking first and second ends, the first end of the separator cage including a wall defining a projecting member and the second end of the separator cage including a wall defining a receiving member, the first end projecting member and the second end receiving member being in opposed facing relationship and the first end projecting member extending into the second end receiving member to secure the first end to the second end and form an annular, continuous rolling bearing ring.

POWER OPERATED ROTARY KNIFE

A power operated rotary knife including an annular rotary knife blade supported for rotation in a blade housing. The rotary knife blade including a body and a blade section extending from the body. The body includes an outer wall including an arcuate surface having an upper region extending from a first upper end portion to a second intermediate portion and a lower region extending from the second intermediate portion to a third lower end portion. A plurality of gear teeth extend downwardly from the upper end of the body, each of the plurality of gear teeth including an outer peripheral face forming a portion of the upper region of the arcuate surface of the outer wall. The body outer wall includes a bearing surface having a lower bearing face in the lower region of the arcuate surface and an upper bearing face in the upper region of the arcuate surface. 135-. (canceled)36. An annular blade housing for supporting an annular rotary knife blade for rotation in a power operated rotary knife , the blade housing comprising:a blade support section and a mounting section extending from the blade support section;the blade support section including an inner wall and a radially spaced apart outer wall, an upper end and an upper end and an axially spaced apart lower end, an upper portion of the inner wall of the blade support section including a bearing race extending radially into the inner wall of the blade support section, the bearing race including a concave surface comprising a first concave bearing surface and a lower portion of the inner wall of the blade support section including a radially protruding bearing bead, the radially protruding bearing bead including a convex surface comprising a second convex bearing surface.37. The annular blade housing of wherein the first concave bearing surface of the bearing race of inner wall of the blade support section is an arcuate surface.38. The annular blade housing of wherein the first concave bearing surface comprises an upper ...

POWER OPERATED ROTARY KNIFE

A two-part rotary knife blade () for a power operated rotary knife. The knife blade () includes a carrier portion () and a blade portion (), the blade portion configured to be received in a nested relationship by the carrier portion and being releasably secured to the carrier portion by an attachment structure (). The attachment structure () including a plurality of projections () extending from one of an outer wall () of the blade portion () and the inner wall () of the carrier portion and a plurality of sockets () disposed in the other of the outer wall of the blade portion and the inner wall of the carrier portion, each of the plurality of projections being received in a respective different one of the plurality of sockets to releasably secure the blade portion to the carrier portion. 150-. (canceled)51. An annular rotary knife blade for rotation about an axis of rotation in a power operated rotary knife , the rotary knife blade comprising:an annular carrier portion including a first end and an axially spaced apart second end, an outer wall and a radially inward spaced apart inner wall extending respectively between the first end and the second end, the carrier portion including a set of gear teeth and a knife blade bearing surface, the carrier portion further including a plurality of projections extending from one of the outer wall of the blade portion and inner wall of the carrier portion;an annular blade portion including a first end and an axially spaced apart second end, an inner wall and a radially spaced apart outer wall, the second end defining a cutting edge of the blade portion, an upper region extending axially from the first end and a lower region ex/ending axially from the second end, and a plurality of sockets extending radially through the inner and outer walls, the plurality of sockets disposed in the upper region of the blade portion and spaced axially from the first end, each of the plurality of sockets having a longitudinal extent that extends ...

Power operated rotary knife

A power operated rotary knife ( 100 ) including: an annular rotary knife blade ( 300 ) including a knife blade bearing surface ( 319 ); a blade housing ( 400 ) defining a blade housing bearing surface ( 459 ); and a blade-blade housing bearing structure ( 500 ) disposed between the knife blade bearing surface ( 319 ) and the blade housing bearing surface ( 459 ). The blade-blade housing bearing structure ( 500 ) includes a rolling bearing strip ( 502 ) having a plurality of rolling bearings ( 506 ), such as ball bearings, disposed in spaced apart relation in a flexible separator cage ( 508 ). The rolling bearing strip ( 502 ) traverses through an annular passageway ( 504 ) defined between the knife blade bearing surface ( 319 ) and the blade housing bearing surface ( 459 ) to secure the knife blade ( 300 ) to the blade housing ( 400 ) and support the knife blade for rotation about a central axis (R) with respect to the blade housing ( 400 ).

POWER OPERATED ROTARY KNIFE WITH DISPOSABLE BLADE SUPPORT ASSEMBLY

A power operated rotary knife having a reusable handle assembly and disposable blade support assembly including a head portion and a blade support portion extending from the head portion, wherein upon completion of a tissue debriding operation on a donor, the used blade support assembly is removed from the handle assembly and disposed of, the handle assembly is autoclaved/sterilized and a new, sterilized blade support assembly is affixed to the handle assembly prior to a subsequent use. The knife includes an attachment assembly to releasably attach the disposable blade support assembly to the handle assembly and a retainer structure positioned in an annular groove formed in a bottom surface of the blade housing portion, the retainer structure bearing against an annular rotary knife blade and the blade housing portion to permanently retain an annular body section of the blade in the annular groove. 129-. (canceled)30. A method of debriding tissue utilizing a power operated rotary knife , the steps of the method comprising:a) providing a power operated rotary knife having a handle assembly and a blade support assembly coupled to the handle assembly, the blade support assembly including: a blade housing portion including an annular ring and defining an annular groove in a bottom surface of the annular ring; an annular rotary knife blade supported for rotation within the annular groove of the blade housing portion, the blade having first and second axially spaced apart ends and an annular body extending therebetween, the annular body including a plurality of gear teeth at the first end and an annular blade section adjacent the second end; and a retainer securing and rotatably supporting the annular body of the knife blade within the annular groove, the retainer affixed within the annular groove and including an upper wall, a first plurality of tabs and a second plurality of tabs, wherein the first plurality of tabs contact a wall of the annular groove to permanently ...

POWER OPERATED ROTARY KNIFE WITH VACUUM ATTACHMENT ASSEMBLY

A power operated rotary knife including: a handle assembly, a head assembly and a vacuum attachment assembly. The handle assembly includes an elongated cylindrical handle housing defining a handle assembly longitudinal axis extending through a throughbore of the handle housing. The head assembly including a rotary knife blade having an intermediate driven gear, a blade housing supporting the knife blade for rotation and a frame having a lower section and an upper section. A lower section of the blade housing extending laterally from the lower section of the frame and an upper section of the blade housing extending laterally from the upper section of the frame and encircling an axially extending portion of the rotary knife blade adjacent the driven gear. The blade housing including a bearing assembly including a first bearing member disposed in the lower section and a second bearing member disposed in the upper section. 1. A power operated rotary knife comprising:an elongated handle assembly including a throughbore and a handle assembly longitudinal axis extending through the throughbore; [ an annular body having an inner wall and a radially spaced apart outer wall, the inner wall defining a central open region extending from a first end to a spaced apart second end of the annular body;', 'the outer wall of the annular body including a drive section disposed intermediate the first and second ends of the annular body, the drive section including a driven gear axially spaced from the first and second ends of the annular body; and', 'a blade section adjacent the second end of the annular body;, 'a rotary knife blade supported by a blade housing for rotation about a central axis of rotation, the rotary knife blade including, 'a blade housing including an upper section and a lower section, the blade housing encircling an axially extending portion of the annular body of the rotary knife blade adjacent the driven gear of the annular body of the rotary knife blade; and', 'a ...

POWER OPERATED ROTARY KNIFE WITH NOTCHED ROTARY KNIFE BLADE AND TRIM GUIDE

A power operated rotary knife assembly including a power operated rotary knife having an annular rotary knife blade, a trim guide, and a drive mechanism for driving the rotary knife blade about an axis of rotation. The assembly also includes a portable power unit, a vacuum assembly and a flexible shaft drive transmission coupled between the power operated rotary knife and the portable power unit. The portable power unit includes a drive motor assembly providing a rotational power source which is operatively coupled to the drive mechanism through the flexible drive transmission to rotate the rotary knife blade. The portable power unit also includes a blower assembly providing vacuum pressure at an inlet duct side, the vacuum assembly being in fluid communication with the inlet duct side to generate a vacuum pressure condition in a region of a cutting opening defined by the rotary knife blade and the trim guide. 120-. (canceled)21. An annular rotary knife blade for a power operated rotary knife , the annular rotary knife blade comprising:an annular body and a blade section centered about an axis of rotation, the annular body including a bearing surface for rotational support of the rotary knife blade and a driven gear for rotationally driving the rotary knife blade, the blade section including a blade section wall extending inwardly from the annular body, a radially inner portion of the blade section wall including a plurality of circumferentially spaced apart notches extending into the blade section wall, each of the plurality of notches including a peripheral wall surrounding a central open portion, the peripheral wall including a leading portion, a central portion and a hook-shaped trailing portion, the leading portion and the hook-shaped trailing portion being radially spaced apart by the central portion, the hook-shaped trailing portion including a cutting portion, a cutting edge of the rotary knife blade comprising the cutting portion of each of the plurality of ...

HAND-OPERATED ROTARY BELT CUTTER

The disclosed inventive concept provides a rotary cutter and method of accurately cutting a ribbed transmission belt lengthwise to a desired width. The rotary cutter includes an upper portion having a handle end and a pivot end and a lower portion having a handle end and a pivot end. The pivot ends of each portion are joined by a common pivot. A belt input pulley and a rotary cutting wheel are rotatably attached to the upper portion. A drive wheel is rotatably attached to the lower portion. A belt output pulley is rotatably attached to the common pivot. Preferably but not absolutely the belt input pulley and the belt output pulley have ribbed outer surfaces. A cutting wheel cover is fixed around at least a portion of the cutting wheel. The upper portion is movable between an open, belt-fitting position and a closed, belt-cutting position relative to the lower portion. 1. A rotary cutter for cutting a belt , the cutter comprising:an upper portion having a handle end and a pivot end;a lower portion having a handle end and a pivot end, said pivot ends being joined by a common pivot;an input pulley and a rotary cutting wheel rotatably attached to said upper portion;a drive wheel rotatably attached to said lower portion; andan output pulley rotatably attached to said common pivot.2. The rotary cutter of wherein said input pulley has a ribbed surface and said output pulley has a ribbed surface.3. The rotary cutter of further including a hand crank attached to said drive wheel.4. The rotary cutter of wherein said drive wheel includes a smooth belt surface.5. The rotary cutter of wherein said smooth belt surface of said drive wheel includes at least one cutting wheel groove.6. The rotary cutter of further including an extension rotatably attached to said upper portion claim 1 , said input pulley being rotatably attached to said extension.7. The rotary cutter of further including a biasing element positioned between said rotatably attached extension and said upper portion.8. ...

BLADE BUSHING FOR ROTARY KNIFE

A powered rotary knife includes a handle, a blade housing, an annular blade, and a blade bushing for rotatably mounting the blade within the housing. The blade housing includes an inner groove that is operable to receive the blade bushing therein. The blade housing and blade bushing are split in order to expand and receive the blade. The blade includes an outer groove that is also operable to receive the blade bushing. Thus, the blade bushing is spaced between the blade housing and blade and rotatably secures the blade within the blade housing. 1. A method of installing an annular blade on a blade housing of a rotary knife , said method comprising the steps of:(a) placing a bushing within the blade housing; and(b) positioning the blade in operable engagement with the bushing such that the bushing serves to support the blade on the blade housing for rotation about an axis,step (a) including the step of locating a radially projecting stop surface of the bushing adjacent a radially projecting stop structure of the blade housing, with interengagement between the stop surface and stop structure restricting the bushing from rotating relative to the blade housing.2. The method as claimed in claim 1 ,said bushing presenting bushing ends which define respective stop surfaces, and said blade housing presenting housing ends which define respective stop structures,said locating step including the step of situating the bushing ends adjacent the housing ends.3. The method as claimed in claim 2 ,said bushing ends defining a circumferential bushing gap therebetween, and said housing ends defining a circumferential housing gap therebetween,step (a) including the step of positioning the bushing so that the bushing gap at least partly overlaps the housing gap.4. The method as claimed in claim 2 ,(c) prior to step (b), elastically deforming the bushing and blade housing in a radially outward direction.5. The method as claimed in claim 2 ,step (b) being performed after step (a).6. The ...

LOW FRICTION ROTARY KNIFE

A power operated knife comprises a blade supporting structure supporting an annular blade for rotation about a central axis. The blade and blade supporting structure are engageable along bearing contact locations that are spaced apart in a direction parallel to the axis so that the blade is stabilized both radially and axially as the knife operates. The blade supporting structures comprises a split blade housing member that is radially expandable and contractible to receive the blade. The split blade housing member and blade engage along relatively short lines of bearing contact that serve to minimize friction and blade heating when the knife operates. The bearing locations are spaced apart both circumferentially around the blade perimeter and in the direction of the axis so that the blade position is stabilized during operation of the knife. 123-. (canceled)24. A rotary knife blade comprisingan annular body defining first and second axial ends, the body disposed about a central axis; andan annular blade section projecting axially from the first axial end of the annular body;the annular body including a radially outer surface disposed between said first and second axial ends, and a bearing bead extending outwardly from the radially outer surface, the bearing bead spaced axially from the blade section and comprising a first bearing surface and an axially spaced apart second bearing surface, the first and second bearing surfaces converging in opposite axial directions.25. The rotary knife blade of wherein the bearing bead is annular.26. The rotary knife blade of wherein the annular body comprises a wall including the radially outer surface.27. The rotary knife blade of wherein the first and second bearing surfaces are arcuate in cross section.28. The rotary knife blade of wherein the bearing bead is substantially semicircular in cross section.29. The rotary knife blade of wherein the bearing bead extends continuously about the radially outer surface of the wall of the ...

Power operated rotary knife with notched rotary knife blade and trim guide

A power operated rotary knife assembly including a power operated rotary knife having an annular rotary knife blade, a trim guide, and a drive mechanism for driving the rotary knife blade about an axis of rotation. The assembly also includes a portable power unit, a vacuum assembly and a flexible shaft drive transmission coupled between the power operated rotary knife and the portable power unit. The portable power unit includes a drive motor assembly providing a rotational power source which is operatively coupled to the drive mechanism through the flexible drive transmission to rotate the rotary knife blade. The portable power unit also includes a blower assembly providing vacuum pressure at an inlet duct side, the vacuum assembly being in fluid communication with the inlet duct side to generate a vacuum pressure condition in a region of a cutting opening defined by the rotary knife blade and the trim guide.

Rotary knife blade with double beveled inside surface

A rotary knife includes a rotatable annular blade. The blade includes a blade wall presenting an annular inner surface terminating at a cutting edge. The annular inner surface includes a first section and a second section, with the first section extending from the cutting edge and the second section being located further from the cutting edge than the first section. The first and second sections define first and second angles, respectively, relative to an imaginary plane transverse to the axis about which blade rotates. The second angle is greater than the first angle.

BLADE BUSHING FOR ROTARY KNIFE

A powered rotary knife includes a handle, a blade housing, an annular blade, and a blade bushing for rotatably mounting the blade within the housing. The blade housing includes an inner groove that is operable to receive the blade bushing therein. The blade housing and blade bushing are split in order to expand and receive the blade. The blade includes an outer groove that is also operable to receive the blade bushing. Thus, the blade bushing is spaced between the blade housing and blade and rotatably secures the blade within the blade housing. 1. A rotary knife driven by a power source , the rotary knife comprising:a blade housing;an annular blade operable to be driven by the power source,said blade housing presenting an annular inwardly facing housing bearing surface,said annular blade presenting an annular outwardly facing blade bearing surface in an opposed relationship with the housing bearing surface; andan annular bushing extending circumferentially to rotatably support the blade relative to the blade housing,said bushing and said blade housing being configured to cooperatively prevent relative rotation therebetween.2. The rotary knife as claimed in claim 1 ,said bushing presenting a radially projecting stop surface,said blade housing including a radially extending stop structure, with interengagement between the stop surface and stop structure restricting the bushing from rotating relative to the housing.3. The rotary knife as claimed in claim 2 ,said stop structure being formed integrally as part of the blade housing.4. The rotary knife as claimed in claim 2 ,said stop structure comprising an end wall extending radially relative to the housing bearing surface.5. The rotary knife as claimed in claim 4 ,said bushing presenting a pair of the stop surfaces, with the stop surfaces facing generally opposite directions,said blade housing presenting a pair of the end walls, with each end wall being adjacent and configured to engage a respective one of the stop ...

POWER OPERATED ROTARY KNIFE

A power operated rotary knife including an annular rotary knife blade supported for rotation in a blade housing. The rotary knife blade including a body and a blade section extending from the body. The body includes an outer wall including an arcuate surface having an upper region extending from a first upper end portion to a second intermediate portion and a lower region extending from the second intermediate portion to a third lower end portion. A plurality of gear teeth extend downwardly from the upper end of the body, each of the plurality of gear teeth including an outer peripheral face forming a portion of the upper region of the arcuate surface of the outer wall. The body outer wall includes a bearing surface having a lower bearing face in the lower region of the arcuate surface and an upper hearing face in the upper region of the arcuate surface. 135-. (canceled)36. An annular rotary knife blade for rotation about a central axis of rotation in a power operated rotary knife , the annular rotary knife blade comprising:a body and a blade section extending from the body;the body including a first end and a second end spaced axially from the first end and an inner wall and an outer wall spaced radially from the inner wall, the outer wall of the body including an arcuate surface protruding outwardly with respect to the central axis of rotation, the arcuate surface including an upper region and a lower region, the upper region of the arcuate surface being axially closer to the first end of the body and the lower region of the arcuate surface being axially closer to the second end of the body;the body further including a driven gear having an upper end and an axially spaced apart lower end and comprising a plurality of gear teeth, the plurality of gear teeth including outer surfaces comprising at least a part of the arcuate surface; andthe outer wall of the body further including a first bearing surface for rotatably supporting the annular rotary knife blade for ...

Annular knife with a sensor for measuring the cutting depth of a rotating knife blade

The disclosure relates to an annular knife with a sensor for determining the cutting depth and a method for determining the cutting depth. When trimming meat such as at abattoirs a customer may require a fat layer of a given thickness, however the natural fat layer of animals vat between different carcasses and within the individual carcass/meat piece. By determining the fat layer thickness and variation hereof of a meat piece before trimming the meat piece an operator may be presented with such information and be able to remove tit in different areas to obtain the required thickness. The trimming may be performed with a system calculating in real unit how much fat is to be removed when some fat has already been removed by an operator.

CAM-ACTUATED SPLIT BLADE HOUSING FOR POWER OPERATED ROTARY KNIFE

A blade housing assembly for a power operated rotary knife including a split blade housing and a cam mechanism for changing a blade housing diameter between blade supporting and blade changing positions. The split blade housing includes an annular blade support section, a mounting section and a split extending through the mounting section and an inner wall of the blade support section and defining a split distance between first and second circumferential ends of the inner wall. The split includes a radial split section and an angled split section adjacent the inner wall. The mounting section includes first and second body portions on opposite sides of the split. The cam mechanism includes a cam plate bridging the first and second body portions and a cam member rotatably supported by the cam plate. The cam member is rotatable between closed and open positions to change the blade housing diameter. 1. A blade housing assembly for supporting an annular rotary knife blade of a power operated rotary knife for rotation about a central axis of rotation , the blade housing assembly comprising:a split blade housing including: an annular blade support section centered about a blade housing center line and including an inner wall; a mounting section extending from the blade support section; and a split extending through the mounting section and the inner wall of the blade support section and defining a split distance between first and second circumferential ends of the inner wall; the mounting section including a first body portion and a second body portion on opposite sides of the split, the first body portion including a first cam slot having a first end portion and a spaced apart second end portion; anda cam mechanism including: a cam plate bridging the first and second body portions of the mounting section of the split blade housing; and a cam member rotatably supported by the cam plate, the cam member rotatable between a first, closed position and a second, open position ...

A ceiling panel and ceiling panel assembly

본 발명은 건축용 천장 판넬 및 이를 설치하기 위한 설치 부재에 관한 것으로 특히, 시공이 간편하고, 시공 후 보수를 용이하게 할 수 있는 천장 판넬 및 그 설치 부재와 이를 이용한 천장 판넬 시공 방법에 관한 것이다. The present invention relates to a building ceiling panel and an installation member for installing the same, and more particularly, to a ceiling panel and its installation member and a ceiling panel construction method using the same that can be easy to install, easy after construction. 이러한 본 발명의 천장 판넬은 양 단부가 상방으로 굽혀진 외장판의 내부에 보온재를 적층하여 구성되고, 상기 외장판의 양 단부에 상방으로 절곡된 부분을 내측으로 굽혀 결합홈부를 형성하며, 상기 결합홈부의 상단을 외부를 향해 절곡하여 절곡 결합부를 형성하여 구성되며, The ceiling panel of the present invention is configured by laminating a heat insulating material in the interior of the outer plate bent upwards at both ends, and bent inwardly bent portion at both ends of the outer plate to form a coupling groove, the coupling It is configured by bending the upper end of the groove toward the outside to form a bending coupling portion, 그 조립체는 상기 판넬들의 사이에 설치되어 서로 다른 판넬들을 결합시키며, 상기 절곡 결합부의 홈에 끼워지는 판넬 걸림깃과, 판넬들 사이의 결합홈부에 삽입되는 걸림 확개부로 구성된 판넬 결합구와 ; 벽에 고정 설치되어 천장 판넬의 양단을 지지하는 단부 프레임과 ; 상기 단부 프레임의 저면에 설치되어 단부 프레임의 상부에 올려진 판넬을 고정시키는 고정나사를 덮어 가려주는 단부 커버를 포함함하여 구성된다. Its assembly is installed between the panels to couple the different panels, the panel engaging portion consisting of a panel engaging blade fitted into the groove of the bent coupling portion, and the engaging expansion portion inserted into the coupling groove between the panel; An end frame fixed to the wall to support both ends of the ceiling panel; It is configured to include an end cover installed on the bottom of the end frame to cover the fixing screw for fixing the panel mounted on the top of the end frame. 천장 판넬, 프레임, 프레임, 커버, 고정구 Ceiling panels, frames, frames, covers, fixtures

Hand knife for cutting meat raw material

Изобретение относитс  к м сной промьшшеннести, точнее к ручному ножу дл  резани  м сного сырь . Цель изобретени  - повьшение надежности и удобства в работе. Нож содержит ручку 1, кольцеобразный корпус 5, на кольцеобразной поверхности которого и примыкающей к ней дугообразной стенке имеетс  кольцеобразное лезвие 7 с конической боковой поверхностью, установленное в корпусе 5 с возможностью вращени , один торец которого вьтолнен зубчатым. Он находитс  в контакте с кольцеобразной поверхностью . ПротиБОположньй торец лезви  7 имеет режущую кромку 12, а также элемент 8 дл  удерживани  лезви  7 в корпусе 5. Дугообразна  стенка имеет выступ дл  ограничени  осевого смещени  лезви  7 относительно кольцеобразной поверхности, элемент 8 св зан с ручкой 1 посредством шарнирного соединени  9 дл  взаимодействи  с наружной поверхностью лезви  7 в рабочем положении и отвода от нее дл  замены лезви  7 и прикреплен к нему в удерживающем лезвие 7 положении посредством винта 10. Корпус 5 прикреплен к отрезкам 3 и 4. Шарнирное соединение на отрезке 3 состоит из имеющей внутреннюю.нарезку втулки 22, прикрепленной к одному концу элемента 8, и барашка. Пружина, окружающа  вал и действующа  на винт 27 и отрезок 4, удерживает винт 27 в отрегулированном положении. Предложенна  конструкци  ножа обеспечивает удобную смену лезвий. 6 з.п. ф-лы, 10 ил. СО с Фь а

KNIFE, IN PARTICULAR, FOR CUTTING FOOD

1. Нож, в частности, для резки пищевых продуктов, содержащий установленное с возможностью вращения вокруг оси вращения лезвие и выполненный в виде электродвигателя привод, содержащий вращающийся ротор и неподвижный статор, которые взаимодействуют между собой для приведения лезвия во вращательное движение при работе ножа, отличающийся тем, что ротор (32) установлен с возможностью вращения вокруг оси (A) вращения, жестко соединен с лезвием (33) и при работе ножа (1) вращается вместе с лезвием (33) вокруг оси (A) вращения. !2. Нож по п.1, отличающийся тем, что статор (31), ротор (32) и лезвие (33) выполнены, в основном, кольцеобразными и расположены концентрично друг другу. ! 3. Нож по п.1, отличающийся тем, что ротор (32) установлен на статоре (31) с возможностью вращения посредством шарикоподшипника (34). ! 4. Нож по п.3, отличающийся тем, что шарикоподшипник (34) выполнен в виде керамического шарикоподшипника. ! 5. Нож по п.1, отличающийся тем, что ротор (32) по типу внутреннего ротора расположен внутри статора (31), а лезвие (33) расположено радиально внутри ротора (32) на его внутренней стороне. ! 6. Нож по п.1, отличающийся тем, что лезвие (33) для закрепления удерживается на роторе (32) с геометрическим или с силовым замыканием, а соединение между ротором (32) и лезвием (33) выполнено разъемным. ! 7. Нож по п.6, отличающийся тем, что соединение между ротором (32) и лезвием (33) выполнено с возможностью самопроизвольной затяжки при работе ножа (1). ! 8. Нож по п.1, отличающийся тем, что привод (31, 32) выполнен по типу возбуждаемого постоянными магнитами трехфазного синхронного двигателя, причем на роторе (32) расположены постоянные магниты, а на статоре (31) - содержащие якорные о РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2009 133 231 (13) A (51) МПК B26B 25/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2009133231/02, 10.03.2008 (71) Заявитель(и): Форшунгс-унд ...

Pneumatic control system for meat trimming knife

A pneumatic control system for a meat trimming knife in which an annular cutting blade of the knife is rotated by a flexible cable driven by an electric motor mounted remote from the knife. A diaphragm mounted in the handle of the knife is compressed by the manual movement of a piston by an operator. The diaphragm is connected to a pressure switch which senses compression of the diaphragm and generates an electric control signal which actuates an electric clutch which couples the output shaft of the electric motor to the flexible cable for rotating the cutting blade. Upon release of the lever by the operator, the pressure switch senses the change in pressure which signals the clutch to disengage the motor shaft from the flexible cable to stop the rotation of the cutting blade. In a modified embodiment a diaphragm pump supplies a flow of low pressure, low volume air to the handpiece. A lever on the handpiece changes this air flow which is sensed by a pressure sensor which actuates the electrical clutch through a logic circuit to control the flexible drive cable. In a further embodiment, a manually operated torque selector enables the amount or torque supplied to the handpiece to be varied to complement the size of the handpiece. In another embodiment an automatically operated torque limiting clutch is interposed between the cutting blade and electric motor to limit the amount of torque transmitted from the motor to the cutting blade.

Powered hand tool

Data enable circuit with reduced power consumption in lcd source driver ic

본 발명은 액정표시장치(LCD, Liquid Crystal Display) 관련 기술에 관한 것으로, 특히 LCD 소스 드라이버 IC(LCD Source Driver IC)의 데이터 인에이블 회로에 관한 것이다. 본 발명은 소스 드라이버에서의 불필요한 전력 소모를 크게 줄일 수 있는 액정표시장치의 소스 드라이버 집적회로의 데이터 인에이블 회로를 제공하는데 그 목적이 있다. 본 발명에서는 LCD 소스 드라이버 IC 내의 쉬프트레지스터를 전체 채널에 대해 좌/우 영역으로 구분하고, 쉬프트레지스터를 인에이블시키기 위한 클럭인에이블신호를 좌/우측 클럭인에이블신호로 분리하여 쉬프트레지스터가 절반씩 인에이블 되도록 하였다. 이를 위해 본 발명에서는 기존에 사용된 좌/우측 데이터 버퍼 인에이블신호 발생기를 변형하여 여기에 클럭인에이블신호를 인가함으로써 좌/우측 클럭인에이블신호를 생성하는 방식을 구현하였으며, 이에 따라 소스 드라이버에서의 불필요한 전력 소모를 크게 줄일 수 있게 된다. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display (LCD) related technology, and more particularly, to a data enable circuit of an LCD source driver IC. An object of the present invention is to provide a data enable circuit of a source driver integrated circuit of a liquid crystal display device which can greatly reduce unnecessary power consumption in the source driver. In the present invention, the shift register in the LCD source driver IC is divided into left and right regions for all channels, and the clock enable signal for enabling the shift register is divided into left and right clock enable signals, thereby shifting the shift register by half. Enabled. To this end, the present invention implements a method of generating a left / right clock enable signal by applying a clock enable signal by modifying a left / right data buffer enable signal generator. This can significantly reduce unnecessary power consumption. 액정표시장치, 소스 드라이버, 디지털 제어부, 데이터 인에이블 회로, 좌/우 제어신호 LCD, Source Driver, Digital Control Unit, Data Enable Circuit, Left / Right Control Signal

Hand knife for cutting and dressing meat and handle for this knife

A hand knife (20, 120), of the type having a ring-like rotary driven blade useful for cutting meat and other suitable products; a blade housing (24, 124, 224) for a hand knife; and a circular blade (26, 126). The blade housing has a generally circular groove (38, 138, 238) to receive a ring gear portion (56, 256) of the blade while a cutting portion (60) extends from the housing. One arcuate wall portion (38b, 138b, 238b) of the housing is frusto-conical and faces a similarly contoured peripheral portion of the blade ring-gear. In the preferred construction the housing recess is formed by a cylindrical wall that surrounds the ring-gear portion of the blade and by a frusto-conical wall that is encircled by the ring-gear portion of the blade. A blade retainer (28, 128) secured to the handle acts against a radial flange (62, 162) of the blade when tightened, to retain the blade within the groove, and when loosened allows removal of the blade from the housing.

HAND KNIFE WITH CUTTING THICKNESS CALIBER

Dans un couteau à main destiné à parer un produit comestible, comportant une poignée 12 et une partie en forme de bague 14 comportant une lame de découpe 16, on introduit un calibre D d'épaisseur de coupe comportant une partie de base 28 et une partie de calibrage 30 qui est séparée de la partie de base 28 à une de ses extrémités (l'extrémité droite sur la figure 1, le couteau représenté étant destiné à un droitier). La vis 26 permet de déterminer l'épaisseur de coupe et la vis 48 permet de déterminer la flexion de l'extrémité libre du calibre 30. In a hand knife intended for trimming an edible product, comprising a handle 12 and a ring-shaped part 14 comprising a cutting blade 16, a caliber D of cutting thickness comprising a base part 28 and a part calibrator 30 which is separated from the base part 28 at one of its ends (the right end in FIG. 1, the knife shown being intended for a right handed person). Screw 26 is used to determine the cutting thickness and screw 48 is used to determine the flexion of the free end of gauge 30.

HOUSING FOR ROTARY ANNULAR BLADE KNIFE

Ce logement est fendu en forme de bague présentant une ouverture annulaire et de faible longueur dans la direction longitudinale, comportant des parties ayant, dans la direction longitudinale, une longueur légèrement supérieure à celle des autres pièces et qui partent d'une extrémité, des fentes longitudinales étant pratiquées dans lesdites pièces de longueur un peu plus grande et débouchant dans leurs extrémités prolongées, et une rainure annulaire étant pratiquée à l'intérieur de ce logement fendu et destinée à recevoir une bride extérieure, ou rebord, d'une lame portée par ce logement dans lequel elle peut tourner.

Flex shaft-tool connection for power operated rotary knife

一种联接在驱动马达和动力操作工具的齿轮系之间的柔性轴驱动传动装置。柔性轴驱动传动装置包括：外部壳体，其具有定位在壳体的工具端处的衬套，衬套限定纵向中心开口；润滑剂，其设置在外部壳体内；以及在外部壳体内可旋转的细长的驱动传递轴组件，该细长的驱动传递轴组件包括柔性驱动传动装置和附接到驱动传递轴的工具端的联接器配件，联接器配件包括圆柱形主体和从圆柱形主体向远端延伸的扩大的头部，圆柱形主体配合在衬套的纵向中心开口内，并且扩大的头部的直径大于衬套的纵向中心开口的直径。扩大的头部限定与驱动传递轴组件的中心纵向轴线对齐的正方形驱动器。

Patent FR2431353B1

Power tool for fleshing bones

Meat cutting tool

HAND KNIFE WITH CUTTING THICKNESS CALIBER

Dans un couteau à main pour parer un produit comestible, comportant un châssis B qui a une poignée 12 et une lame 14, on introduit un élément de calibrage D comportant une partie de base 28 fixée au châssis par des vis 36, 38. Des moyens de réglage du calibre sont placés radialement à l'extérieur de l'élément de calibrage et sont constitués par des vis 46 comportant des semelles logées dans des fentes pratiquées dans la partie de base 28. In a hand knife for trimming an edible product, comprising a frame B which has a handle 12 and a blade 14, a sizing element D comprising a base part 28 fixed to the frame by screws 36, 38 is introduced. for adjusting the caliber are placed radially on the outside of the calibrating element and consist of screws 46 comprising flanges housed in slots made in the base part 28.

Rotary knife with sharpener

Ring blade knife having wear plate

1. Dispositivo de placa de desgaste para cuchillo manipulado a mano para cortar carne y productos parecidos, que incluye una empuñadura, una cuchilla de forma anular sujeta en una parte de la empuñadura y que se extiende a partir de ella, y una cuchilla maciza en forma de anillo accionada por motor, soporta por el cárter de modo que pueda efectuar un movimiento de rotación con relación a este último, rodeando dicho cárter circunferencialmente una parte de la periferia externa de la cuchilla, estando caracterizado dicho dispositivo de placa de desgaste (18) porque está sujeto contra dicho cárter (16) en un punto adyacente a la empuñadura (12) de dicha cuchilla, y porque está provisto de una primera superficie curva (82) situada frente a una superficie circular interna (84) de dicha cuchilla (B), estando situada dicha superficie (82) con relación a dicho cárter de cuchilla (16), de modo que éste en contacto con una parte de la superficie circular interna (84) de dicha cuchilla cuando se aplica a dicha cuchilla una fuerza orientada en una dirección que presenta una componente que se aleja de dicha empuñadura. 2. Dispositivo, según la reivindicación 1, caracterizado porque dicha placa de desgaste (18) tiene una segunda porción de superficie curva (74) con un diámetro exterior sustancialmente igual al diámetro interior de una porción curva curva correspondiente (75) del cárter de cuchilla (16), teniendo dicha primera superficie curva (82) de la placa de desgaste (18) un diámetro externo sustancialmente igual al diámetro interior de dicha cuchilla (B). 3. Dispositivo, según las reivindicaciones 1 ó 2, caracterizado porque dicha placa de desgaste (18) tiene una superficie de extremidad (100) transversal a la superficie circular interior (84) de la cuchilla y directamente adyacente a la misma, orientada en la dirección de operación de la cuchilla para desviar las tajadas de producto cortado que se desplazan en la dirección periférica del movimiento de la cuchilla. 4. ...

Power operated rotary knife with disposable blade support assembly

Power operated rotary knife with vacuum attachment assembly

A power operated rotary knife including: a handle assembly, a head assembly and a vacuum attachment assembly. The handle assembly includes an elongated cylindrical handle housing defining a handle assembly longitudinal axis extending through a throughbore of the handle housing. The head assembly includes a rotary knife blade rotatably supported for rotation about an axis of rotation in a blade housing and a frame securing the blade housing to the distal end of the handle assembly in a position offset from the handle housing, the axis of rotation of the rotary knife blade being spaced apart from and parallel to the handle longitudinal axis. The vacuum attachment assembly includes an adapter extending at an angle away from the handle housing such that a central axis of the adapter is transverse to the with respect to the rotary knife blade axis of rotation and the handle assembly longitudinal axis.

Flex shaft with crimped lock sleeve for power operated rotary knife

A method of assembling a flexible shaft drive transmission ( 4701 ) coupled between a drive motor and a power operated tool including the steps of: providing a drive transmitting shaft assembly ( 4800 ) including a flexible, elongated flex shaft ( 4702 ); providing an outer casing assembly ( 4702 ) including an outer casing ( 4704 ) defining a longitudinally extending throughbore and having a motor end ( 4710 ) and a tool end ( 4780 ); sliding a lock sleeve ( 4750 ) onto the motor end of the outer casing to a recessed position with respect to the motor end of the casing; inserting the motor end of the flex shaft through the tool end of the outer casing; affixing a driven fitting ( 4814 ) to the motor end of the flex shaft; advancing the lock sleeve to overlie the motor end of casing; and affixing a casing portion ( 4762 ) of the lock sleeve to the outer casing.

Hand knife

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Flex shaft - drive motor connection for power operated rotary knife

A flexible shaft drive transmission for transmitting rotational power between a drive motor and a gear train of a power operated tool. The flexible shaft drive transmission includes an elongated drive shaft assembly including a rotatable drive transmitting shaft assembly extending through an outer casing. The shaft drive transmission includes a motor end coupling affixed to one end the outer casing and adapted to be releasably connected to a mating coupling of the drive motor. The motor end coupling includes a coupling body having an outer surface tapered region tapering from a larger diameter to a smaller diameter at a distal end of the tapered region to facilitate insertion and proper alignment with the drive motor coupling. The drive transmitting shaft assembly includes a driven fitting having a plurality of drive faces surrounding an axially extending locating member for engagement with a mating drive fitting of the drive motor.

Ring blade knife having wear plate

KNIFE Abstract of the Disclosure A hand knife for use in processing meat. The knife has a handle, a circular housing secured to one end of the handle, and a rotatably power driven ring-like blade in part circumferentially contained by the housing. An arcuate wear pad or plate overlies a portion of the inside surface of the blade adjacent the handle limiting movement of the blade away from the blade housing near the handle and against the surrounding housing opposite the handle during use, distributing wear that otherwise occurs between the interior of the surrounding housing and the outside of the blade, and transferring some of the wear to the exterior of the wear plate and the inside of the blade. The ends of the wear plate are tapered outwardly and toward the blade and each has a surface transverse to and overlying the inside surface of the blade. The transverse surfaces form knife edges at the inside surface of the blade and deflects outwardly cut portions of product being processed as they move through the blade and housing and limit their movement circumferentially with the blade.

Tool for circular knives

Circular knife with annular blade and method for mounting a circular knife head

L'invention concerne un couteau circulaire (1) comprenant une poignée (2) comportant un axe motorisé (6); une tête (3) comprenant un alésage (8) traversé par l'extrémité libre (6a) de l'axe motorisé (6); un support de lame (4) configuré pour être fixé sur la tête (3); une lame annulaire (5) à crémaillère configurée pour être montée dans le support de lame (4); et un pignon (15) configuré pour s'engrener avec la crémaillère (5a) de la lame annulaire (5) pour l'entraîner en rotation; caractérisé par le fait que l'extrémité porte-lame (2c) de la poignée (2) porte des premier et second organes de fixation, tels qu'une bague à surface externe filetée (9) et un écrou (12), permettant d'accoler la tête (3) contre la poignée (2) en amont de l'extrémité libre (6a) de l'axe motorisé (6).

Power operated dermatome with rotary knife blade

A head assembly (200) for a power operated dermatome (100) including a frame body or housing (202) supporting a gear train (520), a blade housing assembly (400), an annular rotary knife blade (300) supported for rotation about an axis of rotation (R) by the blade housing assembly (400). The rotary knife blade (300) includes an inner wall (365) defining an interior region (301) and has a cutting edge (360) at one end (368) defining a cutting plane (CP). The head assembly (200) further includes a depth gauge assembly (600) including a depth gauge support (602) and a depth gauge (620) including a depth gauge plate (622) supported by the depth gauge support (602) for axial movement along the axis of rotation (R), the depth gauge plate (622) extending into the interior region (301) and the depth gauge support (602) attached to and extending from the frame body (202).

Split blade housing for power operated rotary knife

一种开口刀片架，其适于支承环形刀片在动力驱动的旋转刀内转动。所述开口刀片架包括安装部和从安装部延伸形成环的本体部。开口刀片架安装部适于安装到旋转刀的手把组件上并包括凹槽，为小齿轮提供间隙，小齿轮从手把组件延伸以便接合并驱动刀片。开口刀片架包括的环形凹槽，用于转动支承刀片，凹槽限定了刀片的转动平面。开口刀片架包括限定了第一和第二端部的开口，所述端部靠近开口，有利于将刀片从刀片架上取下。刀片架从安装部凹槽周向偏离并且开口横穿刀片架的中心垂直轴线。

Rotary knife providing material removal via suction

A vacuum rotary knife is fluidly connectable to a vacuum source conduit. The rotary knife includes an annular blade and a knife head. The knife head supports the blade for rotation about a rotational axis. The knife head presents a vacuum port fluidly connectable to the conduit. The vacuum port is spaced from the blade such that the knife head defines a suction pathway extending between the blade and the vacuum port.

Hand knife for separating meat from bone

A hand knife 20, 120, 220 of the type having a ring-like rotary driven blade 26, useful for cutting meat and the like; a blade housing 24, 124, 224 for a hand knife; and an improved circular blade 26. The blade housing has a generally circular groove 38, 138, 238 in one axial end 40,140,240 of the housing. The groove is as wide at the open end as inwardly to allow the blade to be inserted and removed in an axial direction. The housing receives and fully encloses a ring gear portion 56 of the blade while a cutting portion 60 extends from the groove. A blade retainer 28, 228 secured to the handle acts against a radial flange 62 of the blade when tightened, to retain the blade within the groove, and when loosened allows removal of the blade from the housing without removing or loosening the housing from the handle.

Rotary knife blade with double beveled inside surface

A rotary knife includes a rotatable annular blade. The blade includes a blade wall presenting an annular inner surface terminating at a cutting edge. The annular inner surface includes a first section and a second section, with the first section extending from the cutting edge and the second section being located further from the cutting edge than the first section. The first and second sections define first and second angles, respectively, relative to an imaginary plane transverse to the axis about which blade rotates. The second angle is greater than the first angle.

Hand knife for cutting meat and the like

A rotary hand knife 20 of the type having a pinion-driven ring blade 34 and used for trimming meat, fat, and the like, with an improved pinion cap 58 and a depth-of-cut gauge 47 for use with the knife, and with an improved drive pinion recess 56 and blade-retaining shoe 36. The cap provides a stepped mounting surface 149 for the gauge that forms a passage R for product scrap or slices to pass behind the gauge. The cap also has a lip 154 that blocks entry of product particles into the blade-driving pinion. The gauge has an arcuate portion 47a offset toward the blade from a base portion 47b that abuts the cap and slides axially on the cap surface to adjust the depth of cut. The recess 56 has a flared portion 56a to facilitate egress of product particles that otherwise would be trapped. The shoe 36 has a relieved portion 110a that prevents binding against the knife blade while yet covering the blade teeth.

Power operated rotary knife

A power operated rotary knife ( 100 ) including: an annular rotary knife blade ( 300 ) including a knife blade bearing surface ( 319 ); a blade housing ( 400 ) defining a blade housing bearing surface ( 459 ); and a blade-blade housing bearing structure ( 500 ) disposed between the knife blade bearing surface ( 319 ) and the blade housing bearing surface ( 459 ). The blade-blade housing bearing structure ( 500 ) includes a rolling bearing strip ( 502 ) having a plurality of rolling bearings ( 506 ), such as ball bearings, disposed in spaced apart relation in a flexible separator cage ( 508 ). The rolling bearing strip ( 502 ) traverses through an annular passageway ( 504 ) defined between the knife blade bearing surface ( 319 ) and the blade housing bearing surface ( 459 ) to secure the knife blade ( 300 ) to the blade housing ( 400 ) and support the knife blade for rotation about a central axis (R) with respect to the blade housing ( 400 ).

MANUAL KNIFE TO CUT MEAT AND SIMILAR PRODUCTS

Rotary knife with blade bushing

A powered rotary knife includes a handle, a blade housing, an annular blade, and a blade bushing for rotatably mounting the blade within the housing. The blade housing includes an inner groove that is operable to receive the blade bushing therein. The blade housing and blade bushing are split in order to expand and receive the blade. The blade includes an outer groove that is also operable to receive the blade bushing. Thus, the blade bushing is spaced between the blade housing and blade and rotatably secures the blade within the blade housing.

Split blade housing for power operated rotary knife

A split blade housing (7800) for supporting an annular rotary knife blade (7300) of a power operated rotary knife (7000) for rotation about a central axis of rotation (R). The split blade housing (7800) comprises an annular blade support section (7850), and a mounting section (7802) extending from the blade support section, the mounting section (7802) including a split (7801a) extending through the mounting section and an inner wall (7852) of the blade support section (7850) and defining a split distance between first and second circumferential ends (7852a, 7852b) of the inner wall (7852) of the blade support section (7852). The mounting section split (7801a) includes a first split portion (7801b) adjacent an outer wall (7806) of the mounting section (7802) and a second split portion (7801c) adjacent an inner wall (7804) of the mounting section (7802), the second split portion (7801c) extending transversely with respect to the first split portion (7801b).

ROTATING KNIFE

MANUALLY ACTIVATED KNIFE FOR THE APPLICATION OF AN EDIBLE PRODUCT

Cutting blade manufacturing method for total mixed ration forage mixing machine and cotting blade thereby

PURPOSE: A method for manufacturing a cutter blade for a TMR fodder mixer and the cutter blade thereby are provided to prevent a central part of the cutter blade from being broken when tightening a screw blade part with a bolt by heat-treating the surface of the screw blade part. CONSTITUTION: A cutter blade for a TMR fodder mixer comprises a concave part, a cutter blade main body(10), a concave blade part(16), a protrusion, and an extrusion blade part(18). The concave part has an arc shape. Multiple concave parts are regularly formed on the circumference of the cutter blade main body. The thickness of the concave blade part is thinner as going to the outside of the cutter blade main body from the central part of the cutter blade main body. A single side of the protrusion of the cutter blade main body is cut and forms the extrusion blade part.

Modular handpiece

MANUAL KNIFE FOR FOOD CUTTING KNIFE, EX. MEAT AND WITH ORGANIZATIONS TO REGULATE THE CUTTING DEPTH

Improved flexible shaft drive transmission

Moveable lubrication assembly for power operated rotary knife

A power operated rotary knife ( 100 ) and method of operation includes an annular rotary blade ( 380 ). The knife further comprises a head assembly ( 300 ) extending from a handle assembly ( 200 ), the head assembly for rotatably supporting the annular rotary blade. The knife also includes a drive mechanism ( 600 ) disposed within the head assembly comprising a pinion gear ( 604 ) and a pinion shaft ( 970 ) rotatably disposed within a bushing ( 610 ), the drive mechanism being operatively coupled to the annular rotary blade, rotating the annular blade during use. A movable lubrication assembly ( 900 ) supported along a frame body between the handle assembly and the annular rotary blade, the rotatable lubrication assembly being rotatably disposed about a longitudinal axis of the handle assembly and providing a lubrication path ( 1000 ) extending from a lubrication adapter ( 924 ) to the pinion gear ( 604 ).

Power operated rotary knife with disposable blade support assembly

A power operated rotary knife having a reusable handle assembly and disposable blade support assembly including a head portion and a blade support portion extending from the head portion, wherein upon completion of a tissue debriding operation on a donor, the used blade support assembly is removed from the handle assembly and disposed of, the handle assembly is autoclaved/sterilized and a new, sterilized blade support assembly is affixed to the handle assembly prior to a subsequent use. The knife includes an attachment assembly to releasably attach the disposable blade support assembly to the handle assembly and a retainer structure positioned in an annular groove formed in a bottom surface of the blade housing portion, the retainer structure bearing against an annular rotary knife blade and the blade housing portion to permanently retain an annular body section of the blade in the annular groove.

Annular knife with a sensor for measuring the cutting depth of a rotating knife blade

KNIFE BLADE HOUSE FOR A ROTARY KNIFE.

Power operated rotary knife

A power operated rotary knife including an annular rotary knife blade supported for rotation in a blade housing. The rotary knife blade including a body and a blade section extending from the body. The body section including an outer wall including an upper, middle and lower portions, The upper portion of the outer wall including a bearing race extending radially inwardly into the outer wall, The lower portion of the outer wall including the driven gear. In one embodiment, the intermediate portion includes an annular land having an outer surface defining a radially outermost portion of the outer wail of the body, the outer surface of the annular land being radially outward of the driven gear and the bearing race. In another embodiment, the intermediate portion includes an annular channel having an inner surface being radially inward of first and second ends of the bearing race and the driven gear.

Tool for rotary knives

A tool for rotary knives of the type that has a handle associated with a tool supporting assembly and means for the rotary actuation of the tool with respect of said tool supporting assembly, the tool comprising a substantially tubular coupling body that is associable with said tool supporting assembly and is provided with means for coupling to said actuation means, and cutting means that are rigidly associated with said body, characterized in that said cutting means are arranged so that they protrude substantially radially and outwardly with respect to said body.

Power operation rotating knife

动力操作旋转刀包括环状旋转刀刀片，环状旋转刀刀片被支撑用于在刀片壳体中旋转。旋转刀刀片包括主体和从主体延伸的刀片部段。主体包括外壁，外壁包括弓状表面，弓状表面具有从第一上端部部分延伸到第二中间部分的上区域和从第二中间部分延伸到第三下端部部分的下区域。多个齿轮齿从主体的上端部向下延伸，多个齿轮齿中的每个包括外外围面，外外围面形成外壁的弓状表面的上区域的一部分。主体外壁包括支承表面，支承表面具有在弓状表面的下区域中的下支承面和在弓状表面的上区域中的上支承面。

TOOL FOR ROTATING KNIVES

Knife

KNIFE ABSTRACT OF THE INVENTION A hand knife having a ring-like rotary blade the diameter of which is considerably greater than its axial. length rotated by a motor in a handle extending normal to the axis of rotation of the blade. The blade of the knife is rotatably supported in a blade housing that surrounds it and which can be removed together with the blade for sharpening of the blade by merely loosening a pair of threaded fasteners. The knife also has a member in the interior of the blade which guides a part being removed from a product being processed through the central opening of the blade and interferes or restricts the movement of the part with the circular rotation of the blade thereby increasing the efficiency of the cutting operation. The material guiding and restricting member is connected to the knife by the same fasteners which connect the knife housing to the knife handle, may be angularly adjusted within the blade and/or may also be disassembled from the knife without removing the fasteners.

Blade sharpening device

Receiving and driving device for a rotary knife

Boning and trimming knife

A hand knife (20, 120), of the type having a ring-like rotary driven blade useful for cutting meat and other suitable products; a blade housing (24, 124, 224) for a hand knife; and a circular blade (26, 126). The blade housing has a generally circular groove (38, 138, 238) to receive a ring gear portion (56, 256) of the blade while a cutting portion (60) extends from the housing. One arcuate wall portion (38b, 138b, 238b) of the housing is frusto-conical and faces a similarly contoured peripheral portion of the blade ring-gear. In the preferred construction the housing recess is formed by a cylindrical wall that surrounds the ring-gear portion of the blade and by a frusto-conical wall that is encircled by the ring-gear portion of the blade. A blade retainer (28, 128) secured to the handle acts against a radial flange (62, 162) of the blade when tightened, to retain the blade within the groove, and when loosened allows removal of the blade from the housing.

Boning and trimming knife and housing

Rotary hand trimming knife

A hand knife 20 of the type used for trimming meat with a rotary gear-driven ring-like blade 34 guided by a ring-like housing 30 and retained by a pivoted retainer 36. The blade has a concave inner surface 96, a peripheral retaining groove 45 with a frusto-conical surface 90, and a reduced diameter outer cylindrical surface 93 to accommodate the retainer. An improved adjusting knob 124 and securing member 40 hold the retainer 36 in proper position.