Apparatus of simultaneous cut and distribution of rolled up material bands.
The invention relates to a cutting apparatus - and simultaneous dispense material webs wound * The object of the invention relates to the technical sector of year apparatus " dispensers and more particularly to sanitary paper, wadding... Or experiences many appliances and devices for distriVntien and the ooupeesexgoge wrappers or packaging. Without some of them, the ooupe paper th ' effeotue by tearing of the tape pulled oontre a serrated profile of the dispenser. Other apparatuses without cutting the paper is performed by slicing the band pulled using a cutting tool mounted on the apparatus. Also known apparatuses where the dispensing and cutting of the paper are simultaneous and automatically obtained by pulling the strip projecting of the apparatus. Examples of these are the devices that were of previous patents, of which the applicant is also the owner. In ο℮ 8 patents, cutting the paper 1 is by pulling the band overhang causing driving a drum surface roughened rolls on pressing the paper roll} the drum being equipped with an organ had ooupe tool (bar, blade, wire. *.) which upon rotation thereof, initiates contact progressively along the length of a counter-tool, to operate the ooupe like a chisel. The OTA recalls suoointement device features having undergone previous deposits by the owner of T The L * apparatus th ST of the type comprising a paper holder is pressure on a drum rotating on a frame fixed to a housing wall and carrying a oâtéooopèrant profiled pawl with a damper or an elastic stop with the steps of an operation, and the other cSté, a lever-eccentric to return spring for the launch of the drum for the cutting by the manual pull on the paper web 1 * appareil overflowing. According to the invention, it is desired to simplify the apparatus, make it more reliable, decrease the tensile force to be exerted on the band overhang for ooupe and increase its efficiency. For eela, there are provided a cutting device for suppressing the counter tool or cutter fixed and ensuring the cutting not more gradually like a chisel but instantaneously by ooupe equivalent to a tear. The apparatus according to the invention is noteworthy in that it has the spool driven by pulling on the paper, a serrated cutting device which, upon rotation of the drum, moves in the direction of rotation of the drum -, to move from the retracted position within the drum, to the extended position, to penetrate the paper taut across antrum of the cutter by the bearing pressure of the roll of material 3ur the drum on the one hand, and by pulling the material on the other hand.. As EMT first characteristic, the cutting device is articulated internally serrated Drum and carries freely rotating according at least oneof its articulating arm, a roller, roller bearing or the like constituting a guide, travels in a groove-shaped cam performed within at least one of a wings-holding frame drum and shaped to provide the exit out of the drum of the cutting device for cutting the material pulled manually. In another feature, the serration cutting device is articulated internally to the drum and carries on one of its axes of articulation, a roller, a roller bearing or the like, which is supported on a fixed cam carried by one of the bearings of the drum which is configured and disposed to exit the cutting device out of the drum for cutting the material pulled manually. According to another feature, the apparatus includes two dispensing devices and cutting the material, it is to say two roller carrier material and two drums with their respective operating members (pawl, damper or " hitée, lever-eccentric, cutter, cam...) set alternately or simultaneously in service by pivotal mounting to a wing of the frame one of the drums, a lever cooperating with the holder material rolls or drums with fittings, to block one of the drums in the case of utilizing alternate. These and other features shall become apparent from the description that follows. To secure the object of the invention without however limiting capability, in component sheets accompanying drawings: Figure 1 is a perspective view separate components of the apparatus in one embodiment already described in a previous dépSt, and given only by way of non-limiting example. The nipple 2 and 3 are views in end and profile showing the means to 'gear drive are' cutter according to a first embodiment. Figure 4 is a cross-sectional view illustrating the known ones entering the operation of the apparatus, represented during traction on the material * Figures 5 and Figure 7 is a partial cross-sectional perspective view showing the cutting device according to a first embodiment in its retracted position in the tambouro Figures 8, 9 ℮- ¾ 10 * rogue views for illustrating the schematic character cutting device according to Figure 7, in three different phases * Figure 11 is a sectional view of the apparatus in one alternative embodiment, represented in the rest position * Figure 12 is a sectional view of the drive drum with the controller of the cutting blade, represented during traction on the material * Figure 13 is a sectional view taken along the line 13 - 13 of Figure 12 * Figure 14 is a sectional view similar to Figure 13, but shown as operation ooupe * Figure 15 is a perspective illustrating the cutter blade holding and guiding SEEN * Figure 16 is a view along line 16 - 16 ooupe considered of Figure 12, the groove mentrantoame * Figure 17 is a view along line 17 - 17 ooupe considered of Figure 14 * illustrating the mounting of the blade holder on the tasAcur * Figures 18, 19 and 20 illustrate schematically réalisatien mth of the apparatus with two dispensing devices and cutting. In order to more specific object of the invention, described now in forms non-limiting embodiment illustrated aurfigures drawings * The L * déorit apparatus illustrated is of the type in a previous deposit. A CTO recalls below the mounting of various elements in order to better understand the operation of 1' * apparatus 1 To Figure, see the principal elements composing the apparatus, e'e' is a-th e. the housing wall The housing wall comprises a plate of tSle squared forming a split vertical and * 2 * I&ottés based on the bottom side and base are attached sides rebattus or wings 3 of generally triangular shape on which articulates the hood The bottom __ t61e 1 has vertical and horizontal déoonpes1a for fixing) and near its bottom part a "orevé" * 1b fits inside the base The roll holder is also mounted on the housing by a simple ratchet, via a shoulder pin 6 passing through the roll holder and projecting laterally, of which engage in holes formed on elastioity DUT punctured 3a _ 3 wings of the casing, parallel to said folded wings " The holder is formed of a roll-formed section 7, one end of which is attached to a fixed arm 8, while at the other end a movable arm articulates the £ The axis The roller b is carried The arm mebile dd is articulated by a pin and is spring biased oontre the roll by a spring coil 16 properly disposed _* the arm 9 still has a slanted end for gripping ease * 9th In a first embodiment illustrated in 2, 3, 7, 8, 9 and 10 are shone>, the drum material dragging j7 _l8_ mint is by its shaft on two bearings 19 - 20 engaged in notches 5®. wings 5b * the bearing the j? is traversed by a lever 26 secured to the axle _l8 and end of which engages a spring 21 connected to the splits jja and for initiating the drum when tensioned by the action of the lever * of the ofttê interior to the wing ^ d, the bearing 19 has a cam 19a that cooperates with the cutting device through a strut, roller or bearing 22 year guiairement integral with the rotational axis 25 of the holder eutil^2 cutting through the walls of the drum, (fig. 7) · A " strap advantageously, the tool holder is molded in a single piece, the tool itself is either a serrated blade metal 25 embedded lady the tool holder (as shown) or alternatively a serrated blade molded material * The bearing could c6té 20, is arranged on the axis of the drum a pawl j8 Larsqu ' Sri pulls on the tape extends beyond the paper, the drum surface roughened j7 17a, is rotated * 21 the spring is tensioned and, when the lever 26 has passed the dead center, the drum is started brightly * parallel, the arm, roller had bearing 22 that is an integral part of the tool holder 23 the AXA 24, has moved around the cam 19a (fig. δ) · when the neutral position is reached, the roller 22 is seated on the end of the cam (fig. 9) actual · * I-drum being launched, the roller 22 bypasses the cam forcing the tool holder to pivot, thereby push out the blade through the slot 2g 1Tb dTT-drum it to an arc of the oercle the éleigmant tambor (as a result of rotation of the drum). The paper taut by the combined user aveo the pressure of the roller holder on the drum, "O-" agirend that the serrations of the blade 2g easily penetrate the paper its epérant a clean cutting instantaneous * During this action, the part 26a the pawl cam 28 moves past the stop 30 in 1 * apart against its return spring (IF After cutting, the drum, on gaming swing, described still a certain arc ICT circle, until the end 2Bb the pawl to make contact with " tee 2ga squared portion of the damper is then rotated (fig. 5). The damper being elastically retained by the spring 31, the tambor is braked and stops. The damper, moves back to the s * flexibly press on an abutment 32 formed in one wing, Oe rebounding effect causes the pawl O ** then presses down in 28d in the mth équsrrée portion 30a the stop 30 thereby preventing the turning back to dm tambor (fig. e)* The ' pawl being mounted on the drum by opening the AXA MFC BCOLs&UEL a6a and indexed by Meanwhile, the roller 22 which has finished ' bypass the cam end 19a, returns the tool holder 24 in retracted position canopy the drum via a return spring 13 attached to the handpiece and to a flange of the drum. It should be noted that to achieve a perfect voltage paper on either side of the cutting blade (voltage obtained upstream by the pressure of the roll of paper on the drum), is provided to attach on the inner wall of the oapot ^ a means for pressing the paper on the drum. This means must ster signature provided gfiatr training, and must pass the cutting blade. For oela, in provided a brush-like member 34 or broom, whose bristles pass the serrations of the blade without damaging them. The search was further provided on the drum, upstream of the slot 17b, a smooth band 17th year project slightly with respect to the rough surface. This band thus driving of paper in the roll by adhesion at this location, and the plaeeoorreote in position above the opening of the oapot when it overran lanoement under the action of the drum. The mth according to alternative embodiment illustrated in Figures 11 to 17, the drum 4 £to rough surface comprises a flange 46a forming an axis rotatien4éb in a wing jjb frame, on which is mounted the pawl 28 and the damper 29" In contrast, the flange 46c the drum is journaled to the other wing Jjbbtti, by a cylindrical bearing surface 47a formed on the lever-eccentric 47 when the drum is connected year b.&Ti by the spring 48. The lever-eccentric has to end a drive range 47b (a square for example) for the flange of the drum is forcibly engaged thereto * The loss-cutting blade On the contrary, another perpendicular arm extends the bar 49a. This arm first forms a part 494 similar to the arm 49b then following 49thseneibrlement perpendicular to the part 494, and whose free end is articulated in 49f year flange. Has 1' intersection of two parts and a line parallel to the blade passing through the arc of the finger 49c is mounted for free rotation a roller, roller bearing or the like jj1_ forming a guide extending outwardly and having the axis support 51a passes through a groove The guide roller 51 is accommodated in a groove formed of the jieo8téjjb of the interior of the wing frame. This groove, more particularly illustrated in Figure 16, in the form of a cam which is constituted of a portion concentric to the AR " drum rotation or scope 47a (part-b, fig. 16), a portion slightly curved away from the IEA (part b c, fig. 16), an apex half-circular (part C a-d, fig. 16), and an arced portion connecting to the concentric portion (portion d-, fig. 16)* The profile of the groove 5®. is suitably arranged to satisfy the conditions of operation, namely: - the spacing of the cutting blade out of the drum (between extended and retracted) must be carried out over a distance equal to 1/5 of the circumference of the drum about (1 remote, fig. 13)* - the start of output of the cutting blade to be effected immediately after the mounting point of the roll of material (fig. 13)* - the start of output of the cutting blade to be effected when the lever-eccentric is in neutral * - the cutting blade must collapse rapidly after cutting to prevent injury to the user rlBque undesirably having engaged a finger inside the apparatus * this is achieved by the rapid return of the oame the top connection to the concentric portion * With these conditions, it is necessary to supplement those that relate to other organs, namely: - eortie point of the cutting blade is to be located 1/4 envircn pulling the material * this is achieved by the orientation of the catch and the damper or abutment relative to the blade holder * the drum surface - is not to permit sliding of the material (rough surface or slightly adhesive composition). - the ratio between the size of the blade output and the distance traveled by them must be carefully calculated based on the adhesion of the material on the drum * this ratio can change with the material quality êAatribué. - the oentre rotation - the width of the slit 46f the drum must be sufficient for the passage of the blade in its development, but should not interfere with the running of the roll of material on the roughened surface. Of course, if ISI members necessary year operation the apparatus (damper, pawl) are set differently from those shown without limitation, it is possible to provide a control of the GUI based blade " of cam groove and configured on both sides of the drum * For some cases of use of the apparatus, which consists in mounting in the same medium and under the same hood, two dispensing devices and inventive cutting * This is the case especially in those places where an unspecified number of persons' uses the sanitary, e.g.: train stations, airports, exposures, large surfaces... without these places, a dedicated service is generally responsible for the maintenance and recharging apparatuses. Gold, EO to pass I of regular hours each day or in another fréquenoe. It would be unpleasant for the user find a oertain time of day many apparatuses voids. In order to remedy this disadvantage, the scheme was to mount a second cutting device and paper delivery in the same package, my " of voice to either simultaneously use both devices, either one or the other alternativemento For this several solutions are possible. Was exemplified scheme "Figures 18 and 19 tiquement a first embodiment according to which both devices feel one behind the other * the first device b 3 £year articulable in housing to the d * access oommodéœent at? second door" X-roller, (fig. 19). Mainly in this embodiment, use is made of wich other devices b - p, as follows: " the two rollers (fig. 18) is complete, it is desired to use the device Jb in * Π must therefore engage the device f to prohibit its use. For this, there is a lever 36 artioulé in 37 in its middle portion on a wing of the device B. this lever is biased constantly in the position shown in Figure 11, by a spring 38, so that its rear end 36a is located in a projection 'd in heparin 39 * the drum 39 of the second device, thereby preventing its rotation, it being understood that the paper is not overflow beneath the hood. When the first roll is almost finished, its support arm 40 is supported on the front of the lever 36 and pushes it up to EO that the first roll is finished. At this time, the lever being pivoted (fig. 19), the drum is released and the spring 41 launch _ being under tension, the roller rotates for overflowing a paper web. Can then be used OA is second roll of paper. The service mechanic then delivers a new roll on the first device and optionally on the second. The support arm According to the embodiment shown in Figure 20, it is possible to use the two devices simultaneously been involved either alteraativement the m or the antrum. Soccer this, the lever L-ERSs green which is reused a rinleau nine on the first device, is vaccinated with either leave the lever in a position finally use the second rebored, been involved raising it by its grip end 42b in order to use the new "1" first roller by blocking the second device. flh can also place the lever in an intermediate position to release the two tee mechanisms and thus use the two rollers * It should be noted that the levers The paper on the drum is positioned behind the first device .... ttjppi MD éenxilnetambsur.. aEG SEEN - in that the blade thus fitted and eoamandéeeettpetrmOtism onto the material merely by rotating the drum, cutting it spawn goose and instentaséeqiaallté regardless of the material to be dispensed, eela by the profile of the this, the drum start perse the lever eaoentriqee * the surface. the rough tambamr, the bearing roller preesienmatériaa 1s tanbenrrtle acting on a eentre-to-a LANE, and the drilled of penetrated suited for the serrated cutting blade. The invention mth e.e. aaeuneænt limit 1528266 Web dispenser M GRANGER 16 Nov 1976 [19 Nov 1975 11 Feb 1976] 47778/76 Heading B8M A device for dispensing web material comprises a rotatable roll R of web material mounted in a support A and biased by springs 11 to engage a drum 17 also mounted rotatably in the support A so that the drum 17 rotates when the web material is pulled, the drum 17 being mounted on a shaft 18 which is non-rotatably secured to a lever 26 which is connected to one end of a spring 21 the other end of which is secured to a structure C mounting the drum 17 inside the support A, a cutter 25 located inside the drum 17 and operated by a camming arrangement, the arrangement being such that when the web is pulled the drum 17 rotates thereby stressing the spring 21 which stores energy until a point is reached when the spring 21 releases its stored energy to vigorously rotate the drum 17 in the same direction, and simultaneously the camming arrangement causes the blade 25 to project through a longitudinal slot 17b in the drum 17 to cut the web material instantaneously and after the cutting operation to retract into the drum 17. When the spring 21 releases its energy and rotates the lever 26 to rotate the drum 17 a cam 19a co-operates with a roller 22 of the cutter assembly to displace the cutter 25 exteriorly of the drum 17. During this drum movement a pawl 28 mounted on the drum shaft 18 brushes past an abutment 30 provided on a flange 5b of the carrier C. After the cut, the drum 17 rotates due to its own inertia until the pawl 28 engages a shock absorber 29, mounted on the shaft 18, which brakes the drum. A spring 31 which is compressed to provide the brakes then relaxes to rotate the shock absorber 29 and to rock the pawl 28 in the reverse direction only to engage it with the abutment 30. The support A is made of sheet material and its hood 4 is made of sheet metal or plastics. The cutter 25 is either embedded in its carrier 24 or moulded integrally. In another embodiment (Figs. 11-17) the cam arrangement is constituted by a roller 51 provided on an arm of the blade 49. The blade 49 is pivotally mounted at a point 49f to an end plate 46c of the drum. The roller 51 rides in a cam groove 5e provided in a flange 5b of the carrier C. When the roller 51 assumes the peak portion (c-d) of the cam groove 5e the blade is projected to cut the web and when it enters portion d-a the blade is retracted. The blade begins its exit after one quarter of the revolution of the drum from its rest position and remains projected for one fifth of the drum revolution. In another embodiment two drum units are mounted together to be used alternately or simultaneously, Figs. 18-20 (not shown). 1 - Apparatus for cutting and simultaneous dispense bands eater I-friend wound of the type comprising a paper holder is pressure on a drum rotating on a frame fixed to a housing wall and carrying a C&fcé profiled pawl cooperating areca a damper with an elastic stop is the steps of an operation, and the other câté, a return spring for levierexoentric lanoemest lo and of the drum for the cutting by the manual pull on the paper web projecting from the apparatus {said apparatus comprising a cutting device which is articulated serrated in the drum and connected to a fixed cam; at the end of manual pull on the paper Attorney bamàe overreaching, driving the drum, the cutting device exits through a drum slot by describing a trajectory away from the drum and in the direction of rotation as mâme thereof to penetrate the paper taut across other ATs cutter and cutting it; the drum e.e. replacing had position output of a new web, by the action of the pawl, of 1' damper or the abutment élastiqueo 2 - The ooupeoonstitué is a loss-blade material ^ shape and a metal blade serrated or also molded material, which is nejée partially molding or fitted on a face * 3 * The ooupe or blade holder hinged to the flanges of the drum, parta freely rotating according to at least one of its hinge arm, a roller, roller bearing or the like constituting a guided rolling into a groove-shaped cam performed within at least one of the wings of the îfetl loss-drum, for driving the blade holder outside the viewed of the cutting drumI 4 - The holder llama cutting is oonetitué of a tie rod of the blade and two end arms perpendicular to the bar; at least one of these arms is connected by a prolcege substantially perpendicular and in the TDD plane, at its free end with a hinge point on TiN flanges of the drum; at the intersection of the two parts of the arm being menté guide towards and rolling in the groove cam, and/had UT finger'd * on a flange joint " 5 - The groove cam of the wing or wings of the frame loss-drum exits composed of a portion concentric to the axis of rotation of the drum, of UMA portion slightly curved away from the axis, an apex substantially year semicircle and a rapid return arc Da are from the apex to the circle. concentric portion; the had the grooves cam followers being properly oriented relative to other organs (pawl, stop. ".), to ensure the output of the blade out of the drum at the proper time of the traction on the material" 6 · - the οτΐ the grooves cane have a complementary profile to 1 * 8x6 to their concentric portion of rotation of the drum, which is established to the cutting a LANE ΐ ℮ / 5 to travel about the circumference of the drum between its exit point and its re-entrance point, so that the output of the a LANE innédiatement occurs after the mounting point of the roller on the tanbournatériau, and in order that the a LANE of ooupe retracts quickly after cutting. Te - the groove cam are oriented on the wings of the btti holder tanbour EO so that the start of the output of the a LANE tanbour occurs when the lever-eccentric when the drum is in neutral or voltage point of the spring husband; EO out point of a LANE being located at about 1/4 of the pulling action on the material. 8Le or the centers of rotation of the cutting blade on the flanges of the drum must be positioned to obtain a precise ratio between the axial spacing of the blade and the arc of the involute of a circle described by the blade between its exit point and penetration into the material; the output distance of the blade and the angular distance that it performs in a ratio being variable depending on the quality of the material to be dispensed. 9 * - The blade holder hinged to the flanges of the drum and cooperating with the groove cam followers or the lesguides, passes through the flanges of the drum by its two axes holder guides or its axis guide carrier and its finger arituclaticn, sliding in grooves oriented flanges. 10e - the drum tourillenne on the wings of the frame of a cSté by a this SOS OD flanges forming an axis for carrying the pawl and the damper, and 1 * other otté by a cylindrical surface formed on the lever-eccentric which is angularly secured by its end, opposite the flange of the drum. 11 · - the ooupe serrated or loss-blade, in an alternative embodiment, is hinged on an axis passing through the drum; at one end of the axis is wedged angularly, outside the drum, an arm pro-spun, a roller, a bearing is other similar member, intended to bear on a cam secured to one of the drum bearings themselves fixed to the wings the btti. 12 -. The.':; cam secured to the bearing and the tool holder with its liaiaemaveo the cam, are angularly disposed accurately relative at lever eccentric lanoement drum, to obtain the crimped of the tool holder the drum only at the end of the strip in outstanding, it is to say after the dead center of the lever-eccentric} a rassort, attached & one flange of the drum and the tool carrier, which releases the tool holder in the retracted position in the drum after cutting, and allows the roller following the cam. 13. - In an alternative embodiment, the apparatus includes two dispensing devices and cutting, it is to say two roller carrier material and two drums with their respective operating members (pawls, dampers, levers and eccentric...), characterized in that the two devices are placed alternately or simultaneously in service by pivotal mounting to a wing of the frame one of the drums, a lever cooperating with the ports -►material rolls or drums with fittings, to block one of the drums in the case of utilizing alternate. 14. - According to paragraph 13, the pivot lever has its front end substantially at one of the arms of the roll holder of material located at the front, while the rear end is aligned with a lateral projection of the drum at the rear. 15. - According to paragraph 13, the lever is constantly biased in position spectre 1 * front by a spring attached to the rear portion of the lever and on the wing of the front drum support, so as to block the stern roller stop its back end on the lateral projection of said drum, the now you want to use the front roller; the arm of the holder front roller bearing on the end of the lever when the roll paper is almost relied, and the rear drum being released under the action of the lever-eccentric by swing of the lever when the roller is finished adrant. 16 * - According to paragraph 13, the lever has at its d-axis * articulatiempivetement or example, a braking member for retaining it in the selected position, it is to say is in the raised position the front into kills the arresting of stern roller bearing of its lateral projection, either positien lowered to the front after arm bearing of the roller holder before, tambor position releasing the rear, or even a horizontal position or intermediate. 17 *" According to paragraph 13, the lever has its front part a notch cooperating with a lateral projection of the front drum positioned such that the protrusion of the mtme stern roller, when the roller is pressed on the front lever to tilt the chair. 18•- according to paragraph 13, the holder assembly drum roll holder is articulated on the housing fear the easy access to the rear roll holder. 19 ** According to paragraph 13, the lever has a pivot angle limited by stops formed on the wing of the bfcfci which carries it, to initiate toggling only when the mouleau front is almost finished. 2G - according to paragraph 13, in place opposite the portion of the had drums on which hangs the paper web to pull, a member of the paper on the grocery appnltanbour as pile warp of pinœau or eiadlaire, renfeerfaut the tension of paper on both sides of the a LANE of eoupe, while permitting passage of said lanee 21 - According to paragraph 13, the tanbenr with rough surface present in bACI for the gap of the cutting tool, a band or surface dye sticks slightly projecting with respect to the rough surface, to the crossflow éuiter paper within the tanbour.
