POWER TRANSMISSION SHAFT

A power transmission shaft (1) comprises a metal shaft main body (2) and a fiber reinforced plastic shaft auxiliary body (3) that is provided so as to be coupled with the metal shaft main body (2). A corrugated portion is formed on one end of the metal shaft main body (2), and a triangular corrugated portion (11) is formed on an end of the shaft auxiliary body (3) on the side of the metal shaft main body. The metal shaft main body (2) and the shaft auxiliary body (3) are integrated by being linearly arranged by way of engagement that brings a side of a triangular corrugated portion (9) on the side of the main body in contact with a side of the triangular corrugated portion (11) on the side of the auxiliary body. The fiber orientation angle (θ) of the fiber reinforced plastic of the shaft auxiliary body (3) is configured so as to be in the same direction as the direction of stress generated in the hypotenuse of each triangular portion in a torque load state.

FIXED CONSTANT VELOCITY UNIVERSAL JOINT AND METHOD FOR ASSEMBLING FIXED CONSTANT VELOCITY UNIVERSAL JOINT

The present invention is a fixed constant velocity universal joint provided with: an outer joint member that has a cup part having a plurality of track grooves formed in an inner surface thereof, and a hollow axial part that extends in the axial direction from the bottom section of the cup part; an inner joint member having a plurality of track grooves formed in an outer surface thereof and having an inner hole to which one end of a shaft is joined; a plurality of torque transmission balls disposed in a ball track formed by a pair of the track grooves of the outer joint member and the track grooves of the inner joint member; and a cage that is interposed between the inner surface of the outer joint member and the outer surface of the inner joint member and that retains the torque transmission balls. A stopper is provided that regulates the maximum angle of operation through contact with the shaft. The stopper is inserted into the axial part of the outer joint member during the transition ...

CONSTANT-VELOCITY UNIVERSAL JOINT

A constant-velocity universal joint is provided with an outer joint member (11), and an inner joint member (12) for transmitting torque while allowing angular displacement with the outer joint member (11) via a ball (13), and the constant-velocity universal joint comprises a concave-convex fitting part (23) capable of transmitting torque, in which a shaft (19) having a plurality of axially extending convex parts (20) formed on the outer peripheral surface thereof is press-fitted into a shaft hole (21) of the inner joint member (12), concave parts (22) are formed in the inner peripheral surface of the shaft hole (21) by transferring the shapes of the convex parts (20), and a firm coupling is achieved in the total fitting contact region (M) between the convex parts (20) and the concave parts (22); wherein the tip of the shaft (19) is provided with a flange part (27) for centering the shaft (19) in the shaft hole (21) of the inner joint member (12) when the shaft (19) is press-fitted, a step ...

V-BELT TYPE STEPLESS TRANSMISSION

A V-belt type stepless transmission has a reduced number of parts and is capable of being assembled easily. A V-belt type stepless transmission is configured such that a nut (73) is rotated by an electric motor (71), a fork member (60) is caused to pivot by the axial movement of a screw shaft (74) which engages through threads with the nut (73) with balls located between the screw shaft (74) and the nut (73), the movable pulley (32) of a drive pulley (30) is axially slid by the fork member (60), and the transmission ratio is changed by a change in the width of the groove of the drive pulley (30). The fork member (60) and the screw shaft (74) are connected by a connection means (80) which has a rotation prevention function for preventing the rotation of the screw shaft (74), and this eliminates the need for mounting an additional rotation prevention means for preventing the rotation of the screw shaft (74).

ORTHOPEDIC FIXING MATERIAL

The present invention addresses the problem of improving the heat conductivity of an orthopedic fixing material comprising a resin material. An orthopedic fixing material is formed by using a base material that comprises a resin component and a heat conductive powder such as an aluminum powder. Owing to the use of the heat conductive powder, the heat conductivity of the orthopedic fixing material is improved. When an affected part is fixed with this orthopedic fixing material and then a cooling plaster or a heating plaster is applied thereon, the affected part can be treated in a cooled or heated state. When an aluminum powder with a relatively light weight is selected as the heat conductive powder, an increase in the weight of the orthopedic fixing material can be avoided.

CONSTANT VELOCITY UNIVERSAL JOINT

A constant velocity universal joint of the present invention comprises an outer side joint member (10) which comprises an outer side joint part (13) where a track groove (11) extending in an axial direction is disposed at a plurality of sites on an inner circumferential surface (12); an inner side joint member (20) which comprises an inner side joint part (23) disposed at a plurality of sites on an outer circumferential surface (22) for a track groove (21) extending in the axial direction to make a pair with the track groove (11) of the outer side joint part (13), and a shaft part (24) which extends from the inner side joint part (23) as a single unit; a ball (30) disposed between the track groove (11) of the outer side joint part (13) and the track groove (21) of the inner side joint part (23) to transmit a torque; and a cage (40) disposed between the inner circumferential surface (12) of the outer side joint part (13) and the outer circumferential surface (22) of the inner side joint ...

BEARING DEVICE FOR WHEEL

Disclosed is a bearing device for a wheel such that separation of a hub ring and an outer coupling ring from each other is allowed, and that the abutting state between a bolt receiving surface, and a head section bearing surface of a bolt member, is made appropriate, resulting in the prevention of a reduction in a fixing force acting between an outer coupling member and the hub ring. In this bearing device, protrusions (32) which extend axially are provided on a shaft section (11) of the outer coupling ring (4), and the shaft section (11) is press-fitted into a hole (20) of the hub ring (1). Through this press-fitting operation, recesses (33) which are closely fitted over the protrusions (32) are formed on the inside diameter surface of the hub ring (1) by means of the protrusions (32), with the result that there is formed a recess-protrusion-fitting structure (M) wherein the protrusions (32) are in close contact with the recesses (33) in the whole fitting area. The hub ring (1), and the ...

MOTIVE-POWER-TRANSMITTING SHAFT AND SPLINE-PROCESSING METHOD

Provided is a power transmission shaft (12), including: a male spline (19) formed in an outer periphery thereof; and a diameter increasing portion (23) formed on a part of a tooth bottom (19b) of the male spline (19), which is located on an opposite side to an axial end of the power transmission shaft (12), by gradually increasing an outer diameter dimension of the tooth bottom (19b). The tooth bottom (19b) of the male spline (19) has a substantially constant circumferential width (c) extending up to an axial region of the diameter increasing portion (23). The diameter increasing portion (23) includes a chamfered portion (25) formed in the axial region of the diameter increasing portion (23), the chamfered portion (25) connecting the tooth bottom (19b) and a tooth flank (19a) of the male spline (19) to each other to reduce a tooth groove width (d). The tooth bottom (19b), the tooth flank (19a), and the chamfered portion (25) each have a press-formed surface. The power transmission shaft ...

FIXED CONSTANT VELOCITY UNIVERSAL JOINT

The present invention relates to a fixed constant velocity universal joint, which is provided with a cup-shaped outer joint member (11), and an inner joint member (12) that is accommodated in said outer joint member (11) and transmits torque to the outer joint member (11) via balls (13) while allowing angular displacement, and in which a shaft (15) has been coupled to the inner joint member (12) so as to allow transmission of torque. A recess (29) is provided in the bottom (18) of the outer joint member (11) and a filler plug (28) that enters the recess (29) of the outer joint member (11) is attached on the end (24) of the shaft (15) that faces said recess (29). Said filler plug (28) is configured to be capable of interfering with the recess (29) of the outer joint member (11) at an angle smaller than the ball (13) incorporation angle and greater than the maximum operating angle during joint use.

WHEEL BEARING DEVICE

A hub wheel (21) and an outer joint member (3) are coupled to each other through intermediation of a recess-projection fitting structure (M). The recess-projection fitting structure (M) can be separated by being applied with a pulling-out force in an axial direction under a state in which a bolt member (30) is removed, and can be re-formed by re-screwing the bolt member (30) into a bolt hole (5d). The hub wheel (21) comprises a receiving portion (23a) for receiving the bolt member (30). The shaft portion (5) has a small diameter portion (5a) serving as a fit-in portion to be fitted along an inner periphery of the receiving portion (23a) under a state in which the recess-projection fitting structure (M) is formed. The small diameter portion (5a) is used as a part for confirming the accuracy and the state of the recess-projection fitting structure (M).

FIXED-TYPE CONSTANT VELOCITY UNIVERSAL JOINT

The present invention provides a fixed-type constant velocity universal joint, provided with a cup-shaped outer joint member 10 and an inner joint member 20 which is accommodated in the outer joint member 10 and which transmits torque while being capable of angular displacement with the outer joint member 10, with balls 30 therebetween, the fixed-type constant velocity universal joint having a shaft 50 extending from the inner joint member 20. A large-diameter portion 51, which interferes with the fastening member (30) when the shaft 50 has reached an operating angle greater than the maximum operating angle relative to the outer joint member 10, is integrally provided to the shaft 50.

FIXED CONSTANT VELOCITY UNIVERSAL JOINT, AND BEARING DEVICE FOR WHEELS

A fixed constant velocity universal joint comprising a cup-shaped outer joint member 12 and an inner joint member 13 which is accommodated within the outer joint member 12 and which transmits torque between the inner joint member 13 and the outer joint member 12 through balls 14 while permitting angular displacement, the inner joint member 13 having a hollow shaft 16 joined thereto in a torque transmittable manner, wherein the outer joint member 12 has a threaded hole 29 formed in the axial direction in the bottom 19 thereof, a recessed hole 24 is formed open to the end of the hollow shaft 16 which faces the threaded hole 29, a plug 30 engaging the threaded hole 29 is press-fitted in the recessed hole 24, and the plug 30 is adapted to be retractable in the press-fit direction relative to the hollow shaft 16.

MOTIVE-POWER-TRANSMITTING SHAFT AND SPLINE-PROCESSING METHOD

A motive-power-transmitting shaft (12) having male splines (19) formed on an outer periphery thereof, and having a widening part (23) in which the outer width of a bottom (19b) gradually increases toward the shaft end of the male splines (19) opposite the bottom (19b); wherein the present invention is characterized in having a configuration in which the peripheral-direction width c of the bottom (19b) of the splines (19) is formed substantially of fixed size up to an axial-direction region of the widening part (23), a chamfer part (25) for connecting the bottom (19b) and a flank (19a) of the splines (19) is provided to the axial-direction region of the widening part (23), and the space width d decreases. The bottom (19b), flank (19a), and chamfer part (25) are formed on a press-molded surface. The relation C>D holds, where C is the axial-direction dimension of the splines (19) of the motive-power-transmitting shaft (12) between position P1 at which the width starts to increase and position ...

OUTER JOINT MEMBER FOR CONSTANT-VELOCITY UNIVERSAL JOINT

An outer joint member 2, 22 that is for a constant-velocity universal joint 1, 12 and that is formed by bonding a cup member 3a, 3a2 and a shaft member 4a, 4a2 that separately form a cup part 3, 32 and a shaft part 4, 42, respectively. The cup part 3, 32 has formed on the inner circumference thereof a track groove 10, 102 that is engaged by a torque transmission element 6, 62. The shaft part 4, 42 is formed at a base portion of the cup part 3, 32. The shaft member 4a, 4a2 has a hollow hole part 27, 272 that comprises a forged surface.

POWER TRANSMISSION SHAFT AND SPLINE-PROCESSING METHOD

A power transmission shaft including a male spline formed in an outer periphery thereof, and a diameter increasing portion formed on a part of a tooth bottom of the male spline, which is located on an opposite side to an axial end of the power transmission shaft. The tooth bottom of the male spline has a substantially constant circumferential width extending up to an axial region of the diameter increasing portion. The diameter increasing portion includes a chamfered portion formed in the axial region of the diameter increasing portion, the chamfered portion connecting the tooth bottom and a tooth flank of the male spline to each other to reduce a tooth groove width. 1. A power transmission shaft , comprising:a male spline formed in an outer periphery thereof; anda diameter increasing portion formed on a part of a tooth bottom of the male spline, which is located on an opposite side to an axial end of the power transmission shaft, by gradually increasing an outer diameter dimension of the tooth bottom,the tooth bottom of the male spline having a substantially constant circumferential width extending up to an axial region of the diameter increasing portion,the diameter increasing portion comprising a chamfered portion formed in the axial region of the diameter increasing portion, the chamfered portion connecting the tooth bottom and a tooth flank of the male spline to each other to reduce a tooth groove width,the tooth bottom, the tooth flank, and the chamfered portion each comprising a press-formed surface, and{'b': 1', '2', '2', '3, 'the power transmission shaft satisfying a relationship of C>D, where C represents an axial dimension between a diameter increase start position (P) and a tooth groove width reduction start position (P) of the male spline, and D represents an axial dimension between the tooth groove width reduction start position (P) and a diameter increase finish position (P) of the male spline.'}2. The power transmission shaft according to claim 1 , ...

WHEEL BEARING DEVICE

VEHICLE-WHEEL BEARING DEVICE

An object of the present invention is to enhance assemblability of a wheel bearing device, and stably maintain predetermined torque transmissibility over a long period of time. A shaft portion (12) of a joint outer ring (5) where projections (35) extending in an axial direction are provided is press-fitted into a hole portion (22) of a hub wheel (1) to thereby form recesses (36) by the projections 35 in an inner diameter surface (37) of a shaft fitting hole 22a of the hub wheel (1), by which a recess-projection fitting structure M is constructed, where an entire area of fitting sites of the projections (35) and the recesses (36) are brought into close contact. Moreover, a bolt member (50) is fastened in a bolt hole (13) provided in the shaft portion (12) of the joint outer ring (5) after the construction of the recess-projection fitting structure (M), which restricts separation between the hub wheel (1) and the joint outer ring (5). As the bolt member (50), if an outer diameter of a seating surface thereof (50a1) is d1 and a shaft diameter is d2, a bolt member satisfying a relational expression of 2.3 ‰¤ (d1 /d2) 2 ‰¤ 4.9 is used.

POWER TRANSMISSION SHAFT AND SPLINE-PROCESSING METHOD

FIXED-TYPE CONSTANT VELOCITY UNIVERSAL JOINT

Provided is a fixed type constant velocity universal joint, including: an outer joint member (10) having a cup-shape; and an inner joint member (20), which is received in the outer joint member (10), and is configured to transmit torque between the inner joint member (20) and the outer joint member (10) through intermediation of balls (30) while allowing angular displacement. The fixed type constant velocity universal joint has a shaft (50) extending from the inner joint member (20). The shaft (50) includes a large-diameter portion (51), which is formed integrally with the shaft (50), and interferes with the balls (30) when the shaft (50) forms an operating angle, which is larger than a maximum, operating angle, with respect to the outer joint member (10) .

SEMICONDUCTOR DEVICE WITH HEAT SPREADER

A BGA type semiconductor device includes: a substrate having wirings and electrodes; a semiconductor element disposed on the substrate, having a rectangular plan shape, and a plurality of electrodes disposed along each side of the semiconductor element; a plurality of wires connecting the electrodes on the semiconductor element with the electrodes on the substrate; a heat dissipation member disposed on the substrate, covering the semiconductor element, and having openings formed in areas facing apex portions of the plurality of wires connected to the electrodes formed along each side of the semiconductor element; and a sealing resin member for covering and sealing the semiconductor element and heat dissipation member. 1. A semiconductor device comprising:a substrate having wirings and first electrodes;a semiconductor element disposed above said substrate, having a rectangular plan shape, and a plurality of second electrodes disposed along each side of said semiconductor element;a plurality of wires connecting the second electrodes above said semiconductor element with the first electrodes above said substrate;a heat spreader disposed above said substrate, covering said semiconductor element, and having a central plate portion and a plurality of side plate portions surrounding said central plate portion, the central plate portion having openings formed in areas facing apex portions of the plurality of wires connected to the second electrodes of the semiconductor element; anda sealing resin member covering and sealing said semiconductor element and said heat spreader.2. The semiconductor device according to claim 1 , wherein said heat spreader has a lid shape including the central plate portion having a plan shape of a rectangle defined by four sides and facing a surface of said semiconductor element claim 1 , and the plurality of side plate portions formed of four side plate portions formed along four sides of said central plate portion.3. The semiconductor device ...

SEMICONDUCTOR DEVICE WITH HEAT SPREADER

A BGA type semiconductor device includes: a substrate having wirings and electrodes; a semiconductor element disposed on the substrate, having a rectangular plan shape, and a plurality of electrodes disposed along each side of the semiconductor element; a plurality of wires connecting the electrodes on the semiconductor element with the electrodes on the substrate; a heat dissipation member disposed on the substrate, covering the semiconductor element, and having openings formed in areas facing apex portions of the plurality of wires connected to the electrodes formed along each side of the semiconductor element; and a sealing resin member for covering and sealing the semiconductor element and heat dissipation member. 1. A method for manufacturing a semiconductor device comprising:forming a first adhesive layer on a first surface of a substrate which comprises first electrode on the first surface and second electrode on a second surface;placing a semiconductor element on the first adhesive layer, the semiconductor element comprising bonding pad;bonding the bonding pad of the semiconductor element with counterpart ones of the first electrode of the substrate with bonding wire;fixing a heat spreader to the first surface of the substrate with second adhesive;forming a resin seal body encapsulating the heat spreader and the semiconductor element; anddisposing solder ball on the second electrode on the second surface of the substrate using a sucking jig;wherein the heat spreader comprises a central plate portion which is located above the semiconductor element.2. The method for manufacturing a semiconductor device according to claim 1 , wherein the heat spreader comprises an opening in the top plate portion.3. The method for manufacturing a semiconductor device according to claim 1 , wherein the second adhesive is a non-conductive adhesive.4. The method for manufacturing a semiconductor device according to claim 1 , wherein the forming a resin seal body comprises loading ...

Wheel bearing device

An object of the present invention is to enhance assemblability of a wheel bearing device, and stably maintain predetermined torque transmissibility over a long period of time. A shaft portion ( 12 ) of a joint outer ring ( 5 ) where projections ( 35 ) extending in an axial direction are provided is press-fitted into a hole portion ( 22 ) of a hub wheel ( 1 ) to thereby form recesses ( 36 ) by the projections 35 in an inner diameter surface ( 37 ) of a shaft fitting hole 22 a of the hub wheel ( 1 ), by which a recess-projection fitting structure M is constructed, where an entire area of fitting sites of the projections ( 35 ) and the recesses ( 36 ) are brought into close contact. Moreover, a bolt member ( 50 ) is fastened in a bolt hole ( 13 ) provided in the shaft portion ( 12 ) of the joint outer ring ( 5 ) after the construction of the recess-projection fitting structure (M), which restricts separation between the hub wheel ( 1 ) and the joint outer ring ( 5 ). As the bolt member ( 50 ), if an outer diameter of a seating surface thereof ( 50 a 1 ) is d 1 and a shaft diameter is d 2 , a bolt member satisfying a relational expression of 2.3≦(d 1 /d 2 ) 2 ≦4.9 is used.

Bearing device for wheel, and axle module

A bearing device for a wheel suppresses backlash in a circumferential direction, has excellent coupling workability with a hub wheel and an outer joint member of a constant velocity universal joint, and has excellent strength owing to stable fitting between the hub wheel and the outer joint member. Projecting portions extending in an axial direction are provided on one of an outer surface of a shaft section of the outer joint member and an inner surface of a hole portion of the hub wheel. The projecting portions are press-fitted into the other along the axial direction, and recessed portions are formed in the other through press-fitting of the projecting portions. Thus, a recess-projection fitting structure is formed, in which the projecting portions and the recessed portions are held in close contact with each other through an entire region of fitting contact regions therebetween.

Fixed constant velocity universal joint and method for assembling fixed constant velocity universal joint

A fixed type constant velocity universal joint includes an outer joint member including a cup section and a hollow shaft section, an inner joint member having a radially inner hole to allow one end of a shaft to be coupled thereto, and torque transmitting balls arranged in ball tracks formed of pairs of track grooves of the outer and inner joint members. The universal joint also includes a cage interposed between a radially inner surface of the outer joint member and a radially outer surface of the inner joint member and configured to retain the torque transmitting balls, and a stopper that regulates a maximum operating angle. The stopper is inserted into the hollow shaft section until the universal joint is mounted to a joint mounting device after the torque transmitting balls are incorporated and then the shaft is mounted to the universal joint.

BEARING DEVICE FOR A WHEEL

A bearing device for a wheel has a stem shaft of an outer joint member of a constant-velocity universal joint fit and inserted in a hole of a hub wheel, the stem shaft and hub wheel being coupled through an intermediation of a recess-projection fitting structure. Projections extending in an axial direction are provided on one of the stem shaft and an inner diameter surface of the hole of the hub wheel. The projections are press-fit into another of the stem shaft and the inner diameter surface of the hole along the axial direction. Recesses that adhere to and fit the projections are formed in the other. An end on an inboard side of the hub wheel is caulked to an outer diameter side to form a caulking section and preload is applied to a roller bearing by the caulking section. 118-. (canceled)19. A bearing device for a wheel , the bearing device comprising:a rolling bearing; anda constant velocity universal joint having an outer joint member with a shaft section and a mouth section,wherein the rolling bearing comprises:an outer member having an inner circumference in which outer raceway surfaces in double rows are formed;an inner member that has, on an outer circumference thereof, inner raceway surfaces in double-rows opposed to the outer raceway surfaces, the inner member comprising an inner ring and a hub wheel having a hole and a flange for attachment to the wheel; androlling elements in double rows interposed between the outer raceway surfaces of the outer member and the inner raceway surfaces of the inner member, whereinthe shaft section of the outer joint member of the constant-velocity universal joint is fit and coupled to an inner diameter of the hole of the hub wheel,an axially extending projection provided on an outer diameter surface of the shaft section of the outer joint member is press-fitted along the axial direction into a small recess provided on an inner diameter surface of the hole of the hub wheel, and a recess is formed in the hole of the hub wheel ...

FIXED-TYPE CONSTANT VELOCITY UNIVERSAL JOINT

Provided is a fixed type constant velocity universal joint, including: an outer joint member () having a cup-shape; and an inner joint member (), which is received in the outer joint member (), and is configured to transmit torque between the inner joint member () and the outer joint member () through intermediation of balls () while allowing angular displacement. The fixed type constant velocity universal joint has a shaft () extending from the inner joint member (). The shaft () includes a large-diameter portion (), which is formed integrally with the shaft (), and interferes with the balls () when the shaft () forms an operating angle, which is larger than a maximum operating angle, with respect to the outer joint member (). 1. A fixed type constant velocity universal joint , comprising:an outer joint member having a cup-shape; andan inner joint member, which is received in the outer joint member, and is configured to transmit torque between the inner joint member and the outer joint member through intermediation of balls while allowing angular displacement,the fixed type constant velocity universal joint having a shaft extending from the inner joint member,the shaft comprising a large-diameter portion, which is formed integrally with the shaft, and interferes with the balls when the shaft forms an operating angle, which is larger than a maximum operating angle, with respect to the outer joint member.2. The fixed type constant velocity universal joint according to claim 1 , wherein the large-diameter portion is arranged on the shaft so as to be spaced apart from an end surface of the inner joint member by an axial distance which is equal to or smaller than a quarter of a diameter of the balls.3. The fixed type constant velocity universal joint according to claim 1 , wherein the shaft has a maximum operating angle of 30° or less. The present invention relates to a fixed type constant velocity universal joint, which is to be used in power transmission systems for ...

BEARING DEVICE FOR A WHEEL

A bearing device for a wheel prevents backlash in a circumferential direction and has excellent workability for connecting a hub wheel and an outer joint member of a constant velocity universal joint. The bearing device includes a recess-projection fitting structure in which the hub wheel and a shaft section, which is fitted in a hole of the hub wheel of the outer joint member of the constant velocity universal joint, are unitized together. In the recess-projection fitting structure, entire fitting regions among projections on the outer surface of the shaft section of the outer joint member and recesses, which fit on the projections, are brought into intimate contact with each other. 1. A bearing device for a wheel , comprising:a hub wheel;a constant velocity universal joint; and an outer member having an inner circumference in which double-row outer raceway surfaces are formed;', the hub wheel having an outer circumference in which one of inner raceway surfaces opposed to the double-row outer raceway surfaces is provided, and', 'an inner race externally fitted onto the hub wheel and having an outer circumference in which another one of the inner raceway surfaces opposed to the double-row outer raceway surfaces is formed; and, 'an inner member including'}, 'balls accommodated in double rows between both the raceway surfaces of the inner member and the outer member so as to freely roll,, 'a double-row roller bearing comprisingthe hub wheel, the double-row roller bearing, and the constant velocity universal joint being unitized together,wherein a recess-projection fitting structure, in which the hub wheel and a shaft section of an outer joint member of the constant velocity universal joint are integrated with each other, is provided, the recess-projection fitting structure being configured such that projections, which are provided on one of an outer surface of the shaft section of the outer joint member and an inner surface of a hole of the hub wheel so as to extend ...

BEARING DEVICE FOR A WHEEL

A bearing device for a wheel prevents backlash in a circumferential direction and has excellent workability for connecting a hub wheel and an outer joint member of a constant velocity universal joint. The bearing device includes a recess-projection fitting structure in which the hub wheel and a shaft section, which is fitted in a hole of the hub wheel of the outer joint member of the constant velocity universal joint, are unitized together. In the recess-projection fitting structure, entire fitting regions among projections on the outer surface of the shaft section of the outer joint member and recesses, which fit on the projections, are brought into intimate contact with each other. 124-. (canceled)25. A bearing device for a wheel , comprising:an outer member having double-row outer raceway surfaces, an inner member having double-row inner raceway surfaces, rolling elements in double rows interposed between the double-row outer raceway surfaces of the outer member and the inner raceway surfaces of the inner member and an outer joint member having a shaft section formed therein,the inner member has a hub wheel having a hole and a flange for attachment to a wheel,the shaft section of the outer joint member being inserted in a fitting manner into the hole of the hub wheel is coupled to the hub wheel,wherein an axially extending projection provided on an outer diameter surface of the shaft section of the outer joint member is press-fitted along the axial direction into a small recess provided on an inner diameter surface of the hole of the hub wheel, and a recess is formed in the hole of the hub wheel by cutting caused by the press-fitting of the projection, to thereby form a recess-projection fitting structure in which the projection and the recess are held in close contact with each other over an entire region of fitting contact regions therebetween,26. A bearing device for a wheel according to claim 25 , whereina hardened layer by induction hardening is formed on an ...

BEARING DEVICE FOR A WHEEL

A bearing device for a wheel prevents backlash in a circumferential direction and has excellent workability for connecting a hub wheel and an outer joint member of a constant velocity universal joint. The bearing device includes a recess-projection fitting structure in which the hub wheel and a shaft section, which is fitted in a hole of the hub wheel of the outer joint member of the constant velocity universal joint, are unitized together. In the recess-projection fitting structure, entire fitting regions among projections on the outer surface of the shaft section of the outer joint member and recesses, which fit on the projections, are brought into intimate contact with each other. 124-. (canceled)25. A manufacturing method for a bearing device for a wheel , the bearing device comprising:a bearing; andan outer joint member having a shaft section, whereinthe bearing comprises an outer member having double-row outer raceway surfaces, an inner member having double-row inner raceway surfaces, and rolling elements in double rows interposed between the double-row outer raceway surfaces of the outer member and the double-row inner raceway surfaces of the inner member,the inner member has a hub wheel having a hole and a flange for attachment to a wheel,the shaft section of the outer joint member is inserted in a fitting manner into the hole of the hub wheel and is coupled to the hub wheel,the manufacturing method comprising steps of:providing a projection with an outer diameter surface of the shaft section of the outer joint member, the projection being extended axially;providing a small recess with an inner diameter surface of the hub wheel; andforming a recess in the hole of the hub wheel by cutting the small recess by the projection press-fitted into the small recess along an axial direction, to thereby form a recess-projection fitting structure in which the projection and the recess are held in close contact with each other over an entire region of fitting contact ...

Bearing device for a wheel

A bearing device for a wheel is capable of suppressing radial play and allowing firm and easy connection between a hub and an outer ring of a constant velocity universal joint. Axially extending projections are provided on a shaft portion of a joint outer ring, and the shaft portion is press-fitted into a hole of a hub. Through this press-fitting, recesses held in close fit-engagement with the projections are formed by the projections in an inner diameter surface of the hub, forming a recess/projection fit-engagement structure in which the projections and the recesses are held in close contact with each other over an entire fit-engagement region thereof. A press-fitting margin (Δd) of the projections with respect to the hub and a height (h) of the projections are set to the following range: 0.3<Δd/2 h<0.86.

FIXED CONSTANT VELOCITY UNIVERSAL JOINT, AND BEARING DEVICE FOR WHEELS

A fixed type constant velocity universal joint includes an outer joint member having a cup shape, an inner joint member, which is received in the outer joint member, and transmits torque between the inner and outer joint members through intermediation of balls while allowing angular displacement, and a hollow shaft, which is coupled to the inner joint member so as to allow torque transmission. A threaded hole is formed in a bottom portion of the outer joint member along an axial direction. A recessed hole is formed to be open in a shaft end portion of the hollow shaft opposed to the threaded hole. An embedded stopper that enters the threaded hole is press-fitted into the recessed hole. The embedded stopper is retractable into the hollow shaft in a press-fitting direction. 1. A fixed type constant velocity universal joint , comprising:an outer joint member having a cup shape;an inner joint member, which is received in the outer joint member, and is configured to transmit torque between the inner joint member and the outer joint member through intermediation of balls while allowing angular displacement; anda shaft, which is coupled to the inner joint member so as to allow torque transmission,wherein a through-hole is formed in a bottom portion of the outer joint member along an axial direction,wherein a recessed portion is formed to be open in a shaft end portion of the shaft opposed to the through-hole,wherein an angle regulating member that enters the through-hole is press-fitted into the recessed portion, andwherein the angle regulating member is retractable into the shaft in a press-fitting direction.2. The fixed type constant velocity universal joint according to claim 1 , wherein the shaft has such a hollow shape that the recessed portion passes through the shaft in the axial direction.3. A bearing device for a wheel claim 1 , comprising a bearing for a wheel including:an outer member having double-row outer raceway surfaces formed on an inner peripheral surface ...

FIXED CONSTANT VELOCITY UNIVERSAL JOINT

A fixed type constant velocity universal joint includes an outer joint member having a cup shape, an inner joint member, which is received in the outer joint member, and transmits torque between the outer and inner joint members through intermediation of balls while allowing angular displacement, and a shaft, which is coupled to the inner joint member so as to allow torque transmission. A recessed portion is formed in a bottom portion of the outer joint member, and an embedded stopper that enters the recessed portion of the outer joint member is mounted to a shaft end portion of the shaft opposed to the recessed portion. The embedded stopper is allowed to interfere with the recessed portion of the outer joint member at an angle that is smaller than an incorporating angle of the balls and larger than a maximum operating angle during use of the joint. 1. A fixed type constant velocity universal joint , comprising:an outer joint member having a cup shape;an inner joint member, which is received in the outer joint member, and is configured to transmit torque between the inner joint member and the outer joint member through intermediation of balls while allowing angular displacement; anda shaft, which is coupled to the inner joint member so as to allow torque transmission,wherein, to a shaft end portion of the shaft opposed to a bottom portion of the outer joint member, an angle regulating member is mounted so as to protrude toward the bottom portion of the outer joint member, andwherein the angle regulating member is allowed to interfere with the bottom portion of the outer joint member at an angle that is smaller than an incorporating angle of the balls and larger than a maximum operating angle during use of the joint.2. The fixed type constant velocity universal joint according to claim 1 , wherein the bottom portion of the outer joint member has a recessed portion formed therein so that the angle regulating member that enters the recessed portion is allowed to ...

POWER TRANSMISSION SHAFT

A corrugated portion is formed in one end edge portion of the metallic shaft main body (), and a triangular corrugated portion () is formed in an end edge portion of the shaft auxiliary body () on the metallic shaft main body side. The metallic shaft main body () and the shaft auxiliary body () are integrated by being linearly arranged by way of meshing that brings a side of the triangular corrugated portion () on the main body side and a side of the triangular corrugated portion () on the auxiliary body side into contact with each other. A fiber orientation angle (θ) of the fiber reinforced plastic of the shaft auxiliary body () is set so as to be in the same direction as a direction of stress generated in a hypotenuse of each triangular portion under a torque load state. 1. A power transmission shaft , comprising:a metallic shaft main body; anda shaft auxiliary body made of fiber reinforced plastic connected to the metallic shaft main body, the fiber reinforced plastic of the shaft auxiliary body including fibers having orientation,wherein the metallic shaft main body has a triangular corrugated portion, in which a plurality of triangular portions are arranged in a circumferential direction of the power transmission shaft, formed in one end edge portion,wherein the shaft auxiliary body has a triangular corrugated portion, in which a plurality of triangular portions are arranged in the circumferential direction, formed in an end edge portion on the metallic shaft main body side,wherein the metallic shaft main body and the shaft auxiliary body are integrated by being linearly arranged by way of meshing that brings a side of the triangular corrugated portion on the metallic shaft main body side and a side of the triangular corrugated portion on the shaft auxiliary body side into contact with each other under a state in which the one end edge portion of the metallic shaft main body and the end edge portion of the shaft auxiliary body on the metallic shaft main body ...

Semiconductor device with heat spreader

A BGA type semiconductor device includes: a substrate having wirings and electrodes; a semiconductor element disposed on the substrate, having a rectangular plan shape, and a plurality of electrodes disposed along each side of the semiconductor element; a plurality of wires connecting the electrodes on the semiconductor element with the electrodes on the substrate; a heat dissipation member disposed on the substrate, covering the semiconductor element, and having openings formed in areas facing apex portions of the plurality of wires connected to the electrodes formed along each side of the semiconductor element; and a sealing resin member for covering and sealing the semiconductor element and heat dissipation member.

Masterbatch for coloring synthetic resin

A masterbatch for coloring a synthetic resin of the present invention includes an aluminum pigment, a polyethylene wax, and a linear low-density polyethylene resin, and the masterbatch in a form of cylindrical pellets, each 2.5 mm in diameter and not less than 2 mm and not more than 5 mm in height, has a Rattler value of not more than 2.5%.

Bearing device for wheel

The present invention provides a wheel bearing device that can suppress backlash in the circumferential direction and has excellent workability in connecting a hub wheel and a outer joint component of a constant velocity universal joint. The wheel bearing device according to the present invention is that in which a stem shaft 12 of an outer joint component of a constant velocity universal joint 3 fitted into a hole section 22 of a hub wheel 1 is integrated with the hub wheel 1 by a projection and recess mating structure M. In the projection and recess mating structure M, an overall recess mating area 38 of a projection 35 is in close contact with a corresponding recess 36.

Constant velocity universal joint

The present invention firmly connects an inner joint component and a shaft of a constant velocity universal joint, making it difficult for backlash to occur. An axis hole inner diameter 26 of an inner member 20 of the constant velocity universal joint is unhardened, and a spline 54 serving as a recess and projection section running along a circumferential direction is formed on an axial end outer diameter 52 of the shaft 50. A hardened layer n is formed on the axial end outer diameter 52 of the shaft 50. The shaft 50 and the inner member 20 are joined by an axial end of the shaft 50 being pressed into the axis hole inner diameter of the inner member 20 to incuse a shape of said recess and projection section onto the axis hole inner diameter 26 of the inner member 20.

Method of manufacturing a semiconductor using a rigid substrate

In a method of manufacturing a semiconductor device of the invention, a rigid substrate which supports one or more semiconductor elements on a surface of the substrate and is clamped between an upper mold and a lower mold of an encapsulation mold at a time of resin encapsulation is provided, so that a vent-end edge portion of the substrate corresponding to a vent end of the encapsulation mold has a thickness smaller than a thickness of other portions of the substrate. The substrate is disposed in the encapsulation mold, and resin is injected into a cavity between the upper mold and the substrate to encapsulate the semiconductor elements with the resin.

Bearing device for wheel

Provided is a bearing device for a wheel that can realize prevention of a backlash in a circumferential direction and is excellent in workability of connection of a hub wheel and an outer joint member of a constant velocity universal joint. Further, provided is a bearing device for a wheel that can prevent deterioration in NVH characteristics, which is caused by the backlash occurring in a joint section between the hub wheel and the constant velocity universal joint or between an outer member and a knuckle, and can perform rotation torque transmission with high accuracy. The bearing device includes a recess-projection fitting structure (M) in which the hub wheel (1) and a shaft section (12), which is fitted in a hole (22) of the hub wheel (1) of the outer joint member of the constant velocity universal joint (3) are unitized together. In the recess-projection fitting structure (M), entire fitting regions among projections (35) on the outer surface of the shaft section (12) of the outer joint member and recesses (36), which fit on the projections, are brought into intimate contact with each other.

Bearing device for wheel

【課題】円周方向のガタの抑制を図ることができ、しかも、ハブ輪と等速自在継手の外側継手部材との連結作業性に優れるとともに、ハブ輪と等速自在継手の外側継手部材との嵌合が安定して強度的にも優れた車輪用軸受装置を提供する。 【解決手段】ハブ輪１と複列の転がり軸受２と等速自在継手３とがユニット化されるとともに、ハブ輪１と、ハブ輪１の孔部２２に嵌挿される等速自在継手の外側継手部材の軸部１２とが凹凸嵌合構造Ｍを介して一体化された車輪用軸受装置である。外側継手部材の軸部１２の外径面とハブ輪１の孔部２２の内径面３７とのどちらか一方に設けられて軸方向に延びる凸部３５を、軸方向に沿って他方に圧入する。これによって、他方に凸部３５にて凸部３５に密着嵌合する凹部３６を形成して、凸部３６と凹部３６との嵌合接触部位３８全域が密着する凹凸嵌合構造Ｍを構成する。凹凸嵌合構造Ｍへの異物侵入防止手段Ｗを設ける。 【選択図】図１

Semiconductor device with heat spreader

A BGA type semiconductor device includes: a substrate having wirings and electrodes; a semiconductor element disposed on the substrate, having a rectangular plan shape, and a plurality of electrodes disposed along each side of the semiconductor element; a plurality of wires connecting the electrodes on the semiconductor element with the electrodes on the substrate; a heat dissipation member disposed on the substrate, covering the semiconductor element, and having openings formed in areas facing apex portions of the plurality of wires connected to the electrodes formed along each side of the semiconductor element; and a sealing resin member for covering and sealing the semiconductor element and heat dissipation member.

Hollow power transmission shaft

【課題】中空状動力伝達シャフトにおいて、その端部外径に塑性加工にて成形される動力伝達用スプライン部の高精度化を図る。 【解決手段】鋼管３０の端部に設けた小径部４外径に塑性加工を施すことで成形した動力伝達用スプライン部としてのスプライン２と、このスプライン２の内径側に配置されて鋼管３０の端部開口を封止する封止部材３１とを備える中間シャフト１である。封止部材３１は、スプライン２成形のための塑性加工前から鋼管３０の小径部４内径に配置され、この塑性加工時に鋼管３０の小径部４内径面を支持する。塑性加工によるスプライン２の成形時において、鋼管３０に対する封止部材３１の軸方向移動は、鋼管３０の小径部４内径に設けた段差面４ａと封止部材３１の内端面３１ａとを軸方向で当接させることで形成した軸方向係合構造４０で規制される。 【選択図】図４

Power transmission shaft

Bearing device for wheel

Provided is a bearing device for a wheel capable of suppressing radial play and allowing firm and easy connection between a hub and an outer ring of a constant velocity universal joint. Axially extending projections (35) are provided on a shaft portion (12) of a joint outer ring (5), and the shaft portion (12) is press-fitted into a hole (22) of a hub (1). Through this press-fitting, recesses (36) held in close fit-engagement with the projections (35) are formed by the projections (35) in an inner diameter surface of the hub (1), forming a recess/projection fit-engagement structure (M) in which the projections (35) and the recesses (36) are held in close contact with each other over an entire fit-engagement region thereof. A press-fitting margin (”d) of the projections (35) with respect to the hub (1) and a height (h) of the projections are set to the following range: 0.3 &lt; ”d/2h &lt; 0.86.

Wheel bearing device

【課題】円周方向のガタを抑制でき、ハブ輪と等速自在継手の外輪とを強固にかつ容易に結合可能とした車輪用軸受装置を提供する。 【解決手段】 継手外輪５の軸部１２に軸方向に延びる凸部３５を設け、軸部１２をハブ輪１の孔２２に圧入する。この圧入により、ハブ輪１の内径面に凸部３５に密着嵌合する凹部３６を凸部３５で形成し、凸部３５と凹部３６との嵌合部位全域が密着する凹凸嵌合構造Ｍを構成する。また、外側継手部材の軸部１２とハブ輪の孔部２２のうち、少なくともどちらか一方に潤滑油を塗布して圧入を行なう。 【選択図】図１

Bearing device for wheel

A bearing device for a wheel, in which circumferential play is minimized and in which a hub ring and an outer joint member of a constant velocity universal joint can be connected with excellent workability. Axially extending projections (35) are formed on either one of the outer diameter surface of a shaft (12) of the outer joint member and the inner diameter surface (37) of a hole (11) of the hub ring (1), and the projections (35) are axially press fitted into the other. Recesses (36) fitted in an intimate contact manner onto the projections (35) are formed in the other. Thus, a recess/projection fitting structure (M) is formed. In the structure (M), the entire fitting/contact portions (38) of the projections (35) and the recesses (36) are in intimate contact with each other. Further, a shaft come-out prevention structure (M1) is provided between the shaft (12) of the outer joint member and the inner diameter surface of the hub ring (1).

Camshaft drive assembly

A camshaft drive assembly comprises a crankshaft 14 mounted on a cylinder block 2, a camshaft 5 mounted on a cylinder head 3, and a first and second intermediate shaft 8,11 for transmitting rotation of said crankshaft to the camshaft 5. Both, the first intermediate shaft 8 and the second intermediate shaft 11 are mounted on the cylinder block. Accordingly, the camshaft assembly will not restrict the placement of the air intake ports, etc., in the cylinder head, thereby improving engine performance. Further assembly operations can be facilitated and a highly reliable structure can be provided.

Bearing device for a wheel

Belt inspection method of belt conveyer

【課題】ベルト内部のスチールコードを覆うカバーゴムのベルト厚さの測定を、スチールコードの断線調査と共に行うベルトコンベアのベルト検査方法を提供する。 【解決手段】移動する水平状態のベルト１１の上側及び下側のいずれか一方側にＸ線発生器１９を、他方側にＸ線ラインセンサ２１を配置して、Ｘ線ラインセンサ２１から一定時間毎に出力されるＸ線強度分布の信号とＸ線強度分布を測定したベルト１１の進行方向の位置からベルト１１のＸ線透過画像を作成し、Ｘ線透過画像中の輝度上昇部の有無からカバーゴム１４の減肉の有無を、輝度上昇部が存在する際の輝度上昇部のＸ線透過画像中の位置からカバーゴム１４の減肉の発生位置をそれぞれ求めると共に、予め求めておいたカバーゴム１４の厚さと輝度値の定量関係に輝度上昇部の輝度値を当てはめて、輝度上昇部のカバーゴム１４の残存厚さを求める。 【選択図】図１

Storage device for wheel

Lagerungsvorrichtung für ein Rad, die umfasst: ein Nabenrad; ein doppelreihiges Wälzlager; ein Gleichlauf-Kreuzgelenk, wobei das Nabenrad, das doppelreihige Wälzlager und das Gleichlauf-Kreuzgelenk eine Einheit bilden; und eine Passstruktur aus Vertiefungen und Vorsprüngen, über die das Nabenrad und ein Wellenabschnitt eines äußeren Gelenkelementes des Gleichlauf-Kreuzgelenkes trennbar miteinander gekoppelt sind, wobei der Wellenabschnitt in Passung in einen Lochteil des Naberades eingeführt ist, wobei die Passstruktur aus Vertiefungen und Vorsprüngen die folgenden Elemente enthält: vorstehende Teile, die an einer Außenfläche des Wellenabschnitts des äußeren Gelenkelementes oder einer Innenfläche des Lochteils des Nabenrades vorhanden sind und sich in einer axialen Richtung erstrecken, wobei die vorstehenden Teile in der axialen Richtung in die Außenfläche des Wellenabschnitts des äußeren Gelenkelementes bzw. die Innenfläche des Lochteils des Nabenrades eingepresst sind; und vertiefte Teile, die mit den vorstehenden Teilen so geformt werden, dass sie in engem Kontakt mit den vorstehenden Teilen... Storage device for a wheel comprising: a hub wheel; a double row rolling bearing; a constant velocity universal joint, wherein the hub wheel, the double row rolling bearing and the constant velocity universal joint form a unit; and a recess-projection fitting structure via which the hub wheel and a shaft portion of an outer hinge element of the constant velocity universal joint are separably coupled to each other, the shaft portion being fitted in a hole portion of the hub wheel, wherein the recess-projection recess structure includes the following elements: protruding parts provided on an outer surface of the shaft portion of the outer joint member or an inner surface of the hole part of the hub wheel and extending in an axial direction, wherein the protruding parts in the axial direction in the outer surface of the shaft portion of the outer joint member or the inner ...

Camshaft driving structure for internal combustion engine

(57)【要約】 【課題】 シリンダヘッド内の吸気ポート等の配置を制 約せず、エンジン性能を高め、組立て作業が簡単で信頼 性の高い構造が得られる内燃機関のカム軸駆動構造を提 供する。 【解決手段】 シリンダブロック２側に装着されたクラ ンク軸１４と、シリンダヘッド３側に装着されたカム軸 ５と、前記クランク軸に第１回転伝達手段７ａ，７ｂを 介して連結された第１中間軸８と、この第１中間軸８に 第２回転伝達手段１０を介して連結された第２中間軸１ １と、この第２中間軸１１と前記カム軸５とを連結する 第３回転伝達手段１２とを備えた内燃機関のカム軸駆動 構造において、前記第１中間軸８および第２中間軸１１ をともにシリンダブロック２側に装着した。

Semiconductor device and method for manufacturing the same

In a method of manufacturing a semiconductor device of the invention, a rigid substrate which supports one or more semiconductor elements on a surface of the substrate and is clamped between an upper mold and a lower mold of an encapsulation mold at a time of resin encapsulation is provided, so that a vent-end edge portion of the substrate corresponding to a vent end of the encapsulation mold has a thickness smaller than a thickness of other portions of the substrate. The substrate is disposed in the encapsulation mold, and resin is injected into a cavity between the upper mold and the substrate to encapsulate the semiconductor elements with the resin.

等速自在継手

【課題】各構成部品の接触部におけるグリースの潤滑性を良好にし、その接触部へのグリース供給を円滑に行う。 【解決手段】 内周部に軸方向の三本のトラック溝１２が形成され、各トラック溝１２の両側にそれぞれ軸方向のローラ案内面１４を有する外側継手部材１０と、半径方向に突出した三本の脚軸２２を有し、その脚軸２２の横断面を長軸が継手の軸線に直交する略楕円形としたトリポード部材２０と、トリポード部材２０の各脚軸２２にそれぞれ装着され、脚軸２２に対して首振り揺動自在なローラ機構３７とを備え、ローラ機構３７は、ローラ案内面１４に沿って外側継手部材１０の軸線と平行な方向に案内されるローラ３４と、脚軸２２の外周面に外嵌されて複数の転動体３６を介してローラ３４を回転自在に支持するリング３２とで構成された等速自在継手において、リング３２の内周面端部に設けられたチャンファに、グリースを保持する油溝を設ける。 【選択図】図１

土壌からの放射線量を減衰させる方法及び放射線減衰材並びに放射線減衰材の製造方法

【課題】本発明は、土壌からの放射線量を減衰させる方法及び放射線減衰材並びに放射線減衰材の製造方法を提供する。 【解決手段】本発明に係る土壌からの放射線量を減衰させる方法は、エラストマー１００質量部にグラフェン及びカーボンナノチューブの少なくとも一方からなる炭素材料を１０質量部以上１２０質量部以下配合した粒子状の放射線減衰部材５０ａを放射線物質に汚染された土壌１に散布することを特徴とする。グラフェン及びカーボンナノチューブの少なくとも一方からなる炭素材料５０ａが放射線Ｒの遮蔽効果を有するので、粒子状の放射線減衰部材５０ａを土壌１に散布することによって、土壌１からの放射線量を減衰することができる。 【選択図】図３

固定式等速自在継手および固定式等速自在継手の組立方法

【課題】被取付部に取り付けるまでの間にボールの落下を防止するとともに、重量増加およびコスト高となるのを抑えることができる固定式等速自在継手及びこのような固定式等速自在継手の組立方法を提供する。 【解決手段】内径面に複数のトラック溝が形成されたカップ部と、カップ部の底部から軸方向に延びる中空の軸部とを有する外側継手部材と、外径面に複数のトラック溝が形成されるとともに内径孔にシャフトの一端が連結された内側継手部材と、外側継手部材のトラック溝と内側継手部材のトラック溝との対で形成されるボールトラックに配置される複数のトルク伝達ボールと、外側継手部材の内径面と内側継手部材の外径面との間に介在すると共にトルク伝達ボールを保持するケージを備えた固定式等速自在継手である。ボール組付け後におけるシャフト取付状態から、被取付部への取り付けまでの間に、外側継手部材の軸部に挿入されるとともに、シャフトに当接して最大作動角を規制するストッパを設けた。 【選択図】図１

Fixed constant velocity universal joint and method for assembling fixed constant velocity universal joint

Lagerungsvorrichtung für Rad und Achsenmodul

Lagerungsvorrichtung für ein Rad, die umfasst:ein Lager (2), das doppelreihige Wälzelemente (30) enthält, die zwischen äußeren Rollbahnen (26, 27) und inneren Rollbahnen (28, 29) angeordnet sind, die einander gegenüberliegen;ein Nabenrad (1), das an einem Rad angebracht ist;ein Gleichlauf-Kreuzgelenk (3), sowieeine Passstruktur (M) aus Vertiefungen und Vorsprüngen, über die ein Wellenabschnitt (12) eines äußeren Gelenkelementes (5) des Gleichlauf-Kreuzgelenks (3) integral mit dem Nabenrad (1) verbunden ist, wobei der Wellenabschnitt (12) in Passung in einen Lochteil (22) des Nabenrades (1) eingeführt ist, dadurch gekennzeichnet, dassein sich in einer axialen Richtung erstreckender vorstehender Teil (35), der an einer Außenfläche des Wellenabschnitts (12) des äußeren Gelenkelementes (5) vorhanden ist, in der axialen Richtung in einen kleinen vertieften Teil, der an einer Innenfläche (37) des Lochteils (22) des Nabenrades (1) vorhanden ist, eingepresst wird, und ein vertiefter Teil (36) in dem Lochteil (22) des Nabenrades (1) durch Beschneiden des kleinen vertieften Teils durch den in den kleinen vertieften Teil eingepressten vorstehenden Teil (35) geformt wird, um dadurch die Passstruktur (M) aus Vertiefungen und Vorsprüngen zu bilden, in welcher der vorstehende Teil (35) und der vertiefte Teil (36) über eine gesamte Zone von Passkontaktzonen (38) zwischen ihnen in engem Kontakt miteinander gehalten werden; unddie Härte wenigstens von Endteilen der vorstehenden Teile (35), an denen das Einpressen beginnt, höher festgelegt wird als die Härte einer Zone zum Ausbilden vertiefter Teile, in die die vorstehenden Teile (35) eingepresst werden, und ein Härteunterschied zwischen ihnen so festgelegt wird, dass er 20 Punkte oder mehr nach HRC beträgt.

Smiconductor device and method for manufacturing semiconductor device

型内被覆成形用組成物及び型内被覆成形品の製造方法

【課題】 アルミ顔料を使用したいわゆるメタリック感を有する塗膜において、アルミ顔料の配向性に優れ、ウエルドラインが生じない型内被覆組成物、及びそれを使用する型内被覆成形品の製造方法を提供する。 【解決手段】 成分として、（Ａ）少なくとも２個の（メタ）アクリレート基を有するオリゴマー、又は不飽和ポリエステル樹脂、（Ｂ）前記（Ａ）成分と共重合可能なエチレン性不飽和モノマー、（Ｃ）繊維素系樹脂、（Ｄ）平均粒子径が１〜２００μｍでかつアスペクト比が１〜１００であるアルミ顔料、及び（Ｅ）重合開始剤を配合する。（Ａ）／（Ｂ）＝８０／２０〜２０／８０（質量部）であり、（Ａ）＋（Ｂ）１００質量部に対し、（Ｃ）成分が１〜２０質量部、（Ｄ）成分が０．１〜２０質量部、（Ｅ）成分が０．１〜１０質量部である。 【選択図】 図１

車輪用軸受装置

【課題】円周方向のガタの抑制を図ることができ、しかも、ハブ輪と等速自在継手の外側継手部材との連結作業性に優れるとともに、ハブ輪と等速自在継手の外側継手部材との分離が可能とされてメンテナンス性に優れた車輪用軸受装置を提供する。 【解決手段】ハブ輪１と、ハブ輪１の孔部２２に嵌挿される等速自在継手３の外側継手部材の軸部１２とが凹凸嵌合構造Ｍを介して分離可能に結合された車輪用軸受装置である。軸部１２の外径面とハブ輪１の孔部２２の内径面３７とのどちらか一方に設けられて軸方向に延びる凸部３５を、軸方向に沿って他方に圧入し、他方に凸部３５にて凸部３５に密着嵌合する凹部３６を形成して、凸部３５と凹部３６との嵌合接触部位３８全域が密着する凹凸嵌合構造Ｍを構成する。凹凸嵌合構造Ｍは軸方向の引き抜き力付与による分離を許容する。位置決め用内壁２２ｃをハブ輪１の孔部２２に設けた。 【選択図】図１

車輪用軸受装置

【課題】車輪用軸受装置において、外側継手部材の軸部とハブ輪とを結合する凹凸嵌合構造を形成するための凸部の形状を適正に管理することで、ハブ輪の不当な膨張を防止しつつ、凹凸嵌合構造の密着性の向上を図る。 【解決手段】 継手外輪５の軸部１２に軸方向に延びる凸部３５を設ける。軸部１２をハブ輪１の孔部２２に圧入してハブ輪１の内径面に凸部３５に密着嵌合する凹部３６を形成し、凹凸嵌合構造Ｍを構成する。圧入開始側端部における軸直角断面で凸部３５の頂部を通る円の直径をＤ１、圧入開始側端部を除く軸方向の任意位置Ｘにおける軸直角断面で凸部３５の頂部を通る円の直径をＤ２（Ｘ）、圧入開始側端部における軸直角断面で基準円Ｃ０上の凸部３５の歯厚をＬ１、任意位置Ｘにおける軸直角断面に基準円Ｃ０を投影した円Ｃ１上での凸部３５の歯厚をＬ２（Ｘ）とした場合に、｜Ｄ１−Ｄ２（Ｘ）｜の値が０．２ｍｍ以下で、｜Ｌ１−Ｌ２（Ｘ）｜の値が０．１ｍｍ以下になるように管理した。 【選択図】図１

チェンジャ付記録媒体再生装置

(57)【要約】 【課題】１つの送りローラで複数段のストッカーへ記録 媒体を挿入排出できる簡単な構造のチェンジャ付記録媒 体再生装置を提供する。 【解決手段】単一の挿入口の背後に複数段のストッカー ２２を昇降可能に配置し、ストッカー２２の背後に再生 ユニット８０を固定配置したチェンジャ付記録媒体再生 装置において、挿入口から挿入される記録媒体１００の 高さ位置でストッカー２２内に出入自在に配置された送 りローラ４１により記録媒体を挿入口方向および再生ユ ニット８０方向に出入させると共にストッカー２２を昇 降させるスライダに設けたカムにより送りローラ４１を ストッカー２２内に出入させ、ストッカー２２が昇降す るときに送りローラ４１が記録媒体１００から離れるよ うに構成した。

ゲームの実行方法、プログラムおよび記録媒体

【課題】打撃できない位置に投球されたボールに手を出してしまったときのモーションを生成する。【解決手段】交差面における、ボール（６０４）が通過する位置を判定するステップと、ミートカーソル（６０６）の位置を特定するステップと、ミートカーソル（６０６）の位置およびボールゾーン（６０８）に設定されている基準点（Ａ）〜（Ｈ）に関連付けられている基準モーションからキャラクタのモーション画像を生成するステップを含む。【選択図】図４

半導体装置及び半導体装置の製造方法

【課題】半導体装置の耐久性並びに信頼性を向上させる。更に、半導体装置のクラックの検査を簡素化し、クラックの検出率を向上させる。 【解決手段】半導体装置１００は、配線基板１１０上に設けられた半導体素子１２０と、半導体素子１２０を封止する封止樹脂とを備え、封止樹脂は、半導体素子１２０を封止する封止用樹脂１５０の部分と、封止用樹脂１５０の部分の側壁から外側に延在する複数の延出部１５１とを備える。また、延出部１５１の部分には、切欠き１５１ａが形成されている。そして、外部衝撃により発生するクラックが切欠き１５１ａ付近に発生することにより、半導体装置の耐久性並びに信頼性が向上する。また、クラックの検査が簡素化し、その検出率が向上する。 【選択図】図１

等速自在継手用ブーツ

【課題】耐摩耗性、耐疲労性および耐老化性に優れた等速自在継手用ブーツを提供する。 【解決手段】好ましくは熱可塑性ポリエステルエラストマーからなる等速自在継手用ブーツの表面に、熱硬化性樹脂をバインダーとして、硫化物とフッ素化合物のいずれか一方または両方からなる被膜を形成する。 【選択図】図１

ローディング機構およびそれを備えたディスク装置

【課題】内部機構が挿入物によって破損されてしまうことを防止する。 【解決手段】ローディング機構は、アウターシャーシと、前記アウターシャーシに回転自在に保持されたローラアームと、前記ローラアームの一方の端に回転自在に保持されたローラと、前記アウターシャーシに回転自在に保持され、前記ローラを押し下げるためのアーム部を有するアップダウンレバーと、を備え、前記ローラアームは、前記ローラの保持部の周囲に設けられ、前記アップダウンレバーの前記アーム部が前記ローラを押し下げていない状態で当該ローラアームが回転した場合に前記アームの先端と係止するストッパを有する。 【選択図】図１２

中空状動力伝達シャフト

　中空状動力伝達シャフトの中空部へのグリースの侵入防止及びその低コスト化を図る。 　中空シャフトの中空部１６全域に発泡樹脂を充填せず、少なくともシャフト両端部１ｂ、１ｃに発泡樹脂２１、２２を充填して中空部１６を封止する。

陳列棚における棚板の取付構造

(57)【要約】 【課題】 側板に棚板を容易かつ確実に架設しうるよう にする。 【解決手段】 筐体１７の両側板１８の対向面に、内縁 部に内上方を向く傾斜片１９ｂを設けた、前後方向を向 く左右１対の棚受け１９を、互いに等高をなすように取 り付け、両側部の内側に、傾斜片１９ｂと同方向を向い て傾斜する取付片２６を備える棚板２４における取付片 ２６を傾斜片１９ｂに上方より重合し、取付片２６と傾 斜片１９ｂとをねじ２９止めする。

固定式等速自在継手

【課題】とくに高トルク時に大きな球面力が発生するようにした固定式等速自在継手の耐久性を向上させる。 【解決手段】固定式等速自在継手は、内球面12に、開口端まで軸方向に延びた複数のボール溝14を円周方向等間隔に形成した外輪10と、外球面22に、軸方向に延びた複数のボール溝24を円周方向等間隔に形成した内輪20と、対をなす外輪10のボール溝14と内輪20のボール溝24との間に介在してトルクを伝達する複数のボール30と、外輪10の内球面12と内輪20の外球面22との間に介在し、ボール30を収容するポケットを円周方向に配設したケージ40とを備え、次に掲げる関係の少なくともいずれかひとつが成立する。 外輪10の内球面12の中心部の内径Rocが両端部の内径ROeより小さい。 内輪20の外球面22の中心部の外径Ricが両端部の外径RIeより大きい。 ケージ40の外球面42の中心部の外径RCOcが両端部の外径RCOeより大きい。 ケージ40の内球面44の中心部の内径RCIcが両端部の内径RCIeより小さい。 【選択図】 図１

重量監視制御装置

【課題】車両の異常を適切に警告すること。【解決手段】重量監視制御装置２０は、車両の重量を計測した重量情報を取得する重量情報取得部２１と、車両のドアを施錠または解錠する信号に基づいて、車両のドアの施錠状態を制御する施錠制御部２２と、施錠制御部２２によって車両のドアが施錠または解錠されたときの、重量情報取得部２１が取得した車両の重量情報に基づいて、車両の搭乗者に対して車両の異常を警告する警告制御部２５とを備える。【選択図】図２

ローディング機構およびそれを備えたディスク装置

【課題】部品点数を増加させることなく、ディスクが回転する際の摺動摩擦を解消する。 【解決手段】ローディング機構は、第１方向に沿って挿入されたディスクを前記第１方向に沿って引き込むローラと、前記第１方向に沿って第１所定位置に引き込まれた前記ディスクをクランプするクランプアームと、前記第１方向において前記第１所定位置より手前に位置する第２所定位置まで前記ディスクが到達したことを前記ディスクとの接触によって検知するトリガーアームと、前記トリガーアームにおける前記ディスクとの接触部を前記第１方向において前記第１所定位置よりも奥側の第３所定位置へ付勢するトリガーアームスプリングと、前記トリガーアームと当接した状態で前記接触部を前記第２所定位置へ付勢し、前記トリガーアームにより前記ディスクが前記第２所定位置まで到達したことが検知された場合に前記トリガーアームから離れるトリガースライダとを備える。 【選択図】図３

陳列棚の支柱装置

(57)【要約】 【課題】 商品陳列棚の傾斜角度を、その自由度を大き く、かつ安全容易に変更できるようにする。 【解決手段】 左右に配設したベース脚２から起立させ た縦支柱３に係合孔９を多数段に設け、その係合孔９の 任意のものに係合しうる係止爪２０を有する係合片６に よって、縦支柱３に上端を回動可能に取付けてなる傾斜 支柱５の下端後部に、後端に左右方向の係合軸２６を備 える角度調節杆７の前端を枢支し、後端のフック爪３６ を縦支柱３の係合孔９に係合させた固定支持杆８の前方 上縁に設けた複数の切欠き３７から選択して、角度調節 杆７の係合軸２６を係合させるとともに、傾斜支柱５ に、棚板４を取付けるための取付用孔１９を、長手方向 に多数段設けた陳列棚の支柱装置とする。

スライダ駆動切換え機構

(57)【要約】 【課題】余分の部品を用いることなく、ギヤとの噛合い が外れたスライダをギヤと十分な距離を離してその位置 を安定させる。 【解決手段】２つのスライダ６２、６３の夫々に設けた ラック６２ａ、６３ａをギヤ６６ａを挟むように対向さ せ前記２つのラック６２ａ、６３ａを択一的に前記ギヤ ６６ａと噛合わせるスライダ駆動切換え機構において、 前記２つのスライダの夫々に設けた傾斜部を有するＬ字 形溝６２ｂ、６３ｄにギヤ６６ａと同軸に回動自在に支 持された駆動切換えアーム６５の２つの軸６５ａ、６５ ｂを夫々係合させ、一方のスライダが前記ギヤ６６ａに 送られＬ字形溝と軸の係合により駆動切換えアーム６５ を回動させて他方のスライダをギヤ６６ａと噛合うよう に移動させた後、前記傾斜部により駆動切換えアーム６ ５を回動させることにより他方のスライダをギヤ６６ａ から離すように構成した。

Sealing member for piping material having excellent chlorine resistance, method for producing sealing member for piping material having excellent chlorine resistance, sealing member for piping material having excellent oil resistance, and piping material

ラジエータグリルと車両

【課題】車両に備えられるラジエータグリルにおいて、ラジエータグリルに組み付け部材を取付ける際に、ネジ等の固定部材が螺合され、ラジエータグリルの裏面に配置されたボス部において、強度が確保できると共に、射出成形の際にラジエータグリルの表面にヒケができないようにすることができるラジエータグリルと車両を提供する。【解決手段】車両に備えられるラジエータグリル２０において、ラジエータグリル２０の裏面に設けられ、表面から裏面に向けた第１方向（Ｘ方向）に延出する延出部２６と、延出部２６の先端部２６ｂに備えられ、ラジエータグリル２０の裏面に配置する組み付け部材４０を組み付け可能なボス部２７とを備え、延出部２６は、ラジエータグリル２０の裏面との接合面の面積Ｓ１を、ボス部２７の先端部２６ｂとの接合面の面積Ｓ０よりも小さくして構成する。【選択図】図３

ローディング機構およびそれを備えたディスク装置

【課題】ディスク排出時におけるディスクの受渡しを円滑且つ確実に行う。 【解決手段】ローディング機構は、アウターシャーシと、前記アウターシャーシに回転自在に保持され、一方の端にディスクの挿入を防止する２つのアームを有するローラアームと、前記ローラアームの他方の端に回転自在に保持されたローラと、を備え、前記ローラアームは、各アームの先端に設けられ、互いに開口が向き合うように配置されたＵ字型の爪を有する。 【選択図】図２３

平面研磨装置

【課題】ワークキャリヤが、太陽歯車及び内歯車に噛み合い遊星運動を行う研磨装置において、太陽歯車及び内歯車の歯面を均一に摩耗させるようにする。 【解決手段】１１上ラップ板、１２下ラップ板、１４太陽歯車及び１５内歯車の相対的な回転運動を同時に行う平行平面研磨装置において、該太陽歯車及び該内歯車が１３ワークキャリヤと噛み合う位置を研磨加工中のワーク厚み検出機構である２７定寸装置で検知し、予め設定された所定厚みに達し作業を終了する毎に１４太陽歯車及び１５内歯車を格別な駆動機構により昇降させ１３キャリヤとの噛み合い位置を変更操作する。 【選択図】図１

デスクシステム

【課題】椅子の後方に通路を確保するとともに、着座していない状態からから着座する状態となるまでに座の前部の位置を大きく変化させることなく、安定的に着座可能とするデスクシステム提供する。 【解決手段】デスクシステム１は、椅子２の座部２２が、前部から後端部に向かうに従って上方へ向かうように傾斜した待機位置に位置するとともに、利用者が着座することで待機位置から下方へと回動させて利用者を支持可能な着座位置まで、第一軸３１回りに回動可能とされ、背板部２３が、座部２２が待機位置に位置した状態で定置物１１との間に通路Ｐを確保した退避位置に位置するとともに、利用者が着座することで退避位置から後方へと回動させて利用者を支持可能な支持位置まで、床に沿う軸３２回りに回動可能とされていることを特徴とする。 【選択図】図３

陳列棚におけるベース棚構造

(57)【要約】 【課題】 陳列棚のベース棚の組立構造を改良して、重 量を軽減し、かつ組付前の部材の体積を減少させて、運 搬や組立施工時の労力を軽減する。 【解決手段】 左右に間隔を隔てて立設された陳列棚側 板５の前端下部に、それぞれベース棚側板６を連結する とともに、この左右のベース棚側板６の上端に、補強連 結材７を掛け渡して固定し、下面が開口するベース棚天 板８の開口前後縁８ａを、それぞれ補強連結材７の前後 端７ａに、またベース棚天板８の開口両側縁８ｂを、そ れぞれ補強連結材７の左右両側端に当接させる。

トリポード型等速自在継手

【課題】トリポード型等速自在継手のローラが接触する部分での磨耗を低減すること。 【解決手段】トリポード型等速自在継手において、トリポード部材の脚軸に回転自在に支持されたローラの表面に、微小凹形状のくぼみをランダムに無数に設け、前記くぼみを設けた面の面粗さパラメータＲｙniを０．４μｍ≦Ｒｙni≦１．０μｍの範囲内とし、かつ、Ｓｋ値を−１．６以下とした。 【選択図】図１

固定式等速自在継手及び車輪用軸受装置

【課題】 等速自在継手の取り扱い時にボールが外側継手部材から脱落することを防止すると共に、等速自在継手の軽量化およびコスト低減を図る。【解決手段】 カップ状の外側継手部材１２と、その外側継手部材１２に収容され、外側継手部材１２との間でボール１４を介して角度変位を許容しながらトルクを伝達する内側継手部材１３とを備え、その内側継手部材１３に中空シャフト１６をトルク伝達可能に結合させた固定式等速自在継手であって、外側継手部材１２の底部１９にねじ孔２９を軸方向に沿って形成すると共に、ねじ孔２９と対向する中空シャフト１６の軸端部に凹孔２４を開口させ、ねじ孔２９に入り込む埋め栓３０を凹孔２４に圧入すると共に、埋め栓３０を中空シャフト１６に対して圧入方向に後退可能とする。【選択図】 図１

車輪用軸受装置

【課題】円周方向のガタを抑制でき、ハブ輪と等速自在継手の外輪とを強固にかつ容易に結合可能とした車輪用軸受装置を提供する。 【解決手段】継手外輪５の軸部１２に軸方向に延びる凸部３５を設け、軸部１２をハブ輪１の孔２２に圧入する。この圧入により、ハブ輪１の内径面に凸部３５に密着嵌合する凹部３６を凸部３５で形成し、凸部３５と凹部３６との嵌合部位全域が密着する凹凸嵌合構造Ｍを構成する。また、凸部３５のうち、凹部３６に嵌合する領域と凹部３６に嵌合しない領域との境界部を通る円Ｃ１から凸部３５の頂部４１ａに至るまでの距離の中間点を通る円をピッチ円とし、このピッチ円上において、径方向線Ｒと凸部３５の側面３５ｂとがなす角度θ１を０°≦θ１≦４５°とすると共に、凸部３５のピッチ円径をＰＣＤとし、凸部数をＺとして、０．３０≦ＰＣＤ／Ｚ≦１．０にする。 【選択図】図３

等速自在継手の外側継手部材

【課題】 製品強度を確保して軽量化が図れると共に、材料歩留りがよく、かつ製造コストを抑制できる等速自在継手の外側継手部材を提供すること。【解決手段】 トルク伝達要素６、６2が係合するトラック溝１０、１０2を内周に形成したカップ部３、３2と、このカップ部３、３2の底部に形成された軸部４、４2とを別部材で構成し、カップ部３、３2を形成するカップ部材３ａ、３ａ2と軸部４、４2を形成する軸部材４ａ、４ａ2とを接合してなる等速自在継手１、１2の外側継手部材２、２2において、軸部材４ａ、４ａ2が鍛造肌からなる中空穴部２７、２７2を有することを特徴とする。【選択図】図１

車輪用軸受装置

【課題】ハブ輪と外側継手部材の分離および再結合を容易かつ高精度に行い得る車輪用軸受装置を提供する。 【解決手段】ハブ輪１と継手外輪５とは、凸部３５が設けられた軸部１２をハブ輪１の孔部２２に圧入して凸部３５で凹部３６を形成し、凸部３５と凹部３６の嵌合部位全域が密着する凹凸嵌合構造Ｍを構成することで結合される。また、軸部１２に設けたボルト孔１３にボルト部材５０をねじ込むことでハブ輪１と継手外輪５の分離を規制する。凹凸嵌合構造Ｍは、ボルト部材５０を取り外した状態での軸方向の引き抜き力の付与によって分離可能で、また、ボルト孔１３へのボルト部材５０の再度のねじ込みにより生じる推力で再構成可能である。凹凸嵌合構造Ｍの再構成時には、凸部３５をハブ輪１の孔部２２に設けたガイド溝４４に嵌合したときに、ハブ輪１に設けた受け面Ｆに座面５０ａ１を当接させたボルト部材５０の雄ねじ部５０ｂ２が、ボルト孔１３の雌ねじ部に始めて噛み合うようにボルト部材５０の長さを設定した。 【選択図】図１０

等速自在継手

【課題】各構成部品の接触部におけるグリースの潤滑性を良好にし、ローラ機構の内部へのグリース潤滑を向上させる。 【解決手段】内周部に軸方向の三本のトラック溝１２が形成され、各トラック溝１２の両側にそれぞれ軸方向のローラ案内面１４を有する外側継手部材１０と、半径方向に突出した三本の脚軸２２を有し、その脚軸２２の横断面を長軸が継手の軸線に直交する略楕円形としたトリポード部材２０と、トリポード部材２０の各脚軸２２にそれぞれ装着され、脚軸２２に対して首振り揺動自在なローラ機構３７とを備え、ローラ機構３７は、ローラ案内面１４に沿って外側継手部材１０の軸線と平行な方向に案内されるローラ３４と、脚軸２２の外周面に外嵌されて複数の転動体３６を介してローラ３４を回転自在に支持するリング３２とで構成されたアッセンブリ体とした等速自在継手において、リング３２の両端面に、グリースを保持する油溝を設ける。 【選択図】図１

Schaltungsanordnung zur Demodulation der Farbdifferenzsignale in einem PAL-Farbfernsehempfänger

棚板の支持装置

(57)【要約】 【課題】 棚板に多くの補強部材等を設けることなく、 簡素な構造で、重量物載置時の棚板中央部の撓みを効果 的に防止するようにした棚板の支持装置を提供する。 【解決手段】 棚板１を形成する鋼板の前後の端部を下 方かつ内方に回り込むように折り曲げて、補強枠部１０ を形成し、これら２個の補強枠部１０のそれぞれの下面 の左右両端部に、前後方向を向くスリット状の係合孔１ ２を穿設し、書架等の棚の側板内側面に係止した正面視 上向きコ字状の棚受け金具６の起立片６ａに、係合孔１ ２の左右方向外側の縁１２ａが当接するようにし、棚板 １を棚受け金具６に係止させる。

Bearing device for wheel

Provided is a bearing device for a wheel capable of suppressing a backlash in a circumferential direction, excellent in coupling operability of a hub wheel and an outer joint member of a constant velocity universal joint, and excellent in maintenance property by allowing separation of the hub wheel and the outer joint member of the constant velocity universal joint from each other. In the bearing device for a wheel, a hub wheel ( 1 ), a double-row roller bearing ( 2 ), and a constant velocity universal joint ( 3 ) are unitized together, and the hub wheel ( 1 ) and a shaft section ( 12 ) of an outer joint member of the constant velocity universal joint ( 3 ) are separably coupled with each other through intermediation of a recess-projection fitting structure (M), the shaft section ( 12 ) being inserted in a fitting manner into a hole portion ( 22 ) of the hub wheel ( 1 ). Projecting portions ( 35 ) provided on one of an outer surface of the shaft section ( 12 ) of the outer joint member and an inner surface ( 37 ) of the hole portion ( 22 ) of the hub wheel ( 1 ) and extending in an axial direction are press-fitted along the axial direction into the other, and recessed portions ( 36 ) are formed with the projecting portions ( 35 ) so as to be held in close contact with the projecting portions ( 35 ) in a fitting manner on the other. Thus, the recess-projection fitting structure (M) is realized, in which the projecting portions ( 35 ) and the recessed portions ( 36 ) are held in close contact with each other through intermediation of an entire region of fitting contact regions ( 38 ) therebetween. The recess-projection fitting structure (M) allows separation by being applied with a pulling-out force in the axial direction.

車輪用軸受装置の組立方法

【課題】円周方向のガタを抑制でき、ハブ輪と等速自在継手の外輪とを強固にかつ容易に結合可能とした車輪用軸受装置の組立方法を提供する。 【解決手段】継手外輪５の軸部１２に軸方向に延びる凸部３５を設け、軸部１２をハブ輪１の孔２２に圧入することにより、ハブ輪１の内径面に凸部３５に密着嵌合する凹部３６を凸部３５で形成し、凸部３５と凹部３６との嵌合部位全域が密着する凹凸嵌合構造Ｍを構成する。その圧入は、継手外輪５を含む等速自在継手アッセンブリ３００を、その軸部１２が上になるようにして継手外輪５の所定箇所で支持し、その上方にハブ輪１を芯合わせ状態で保持して行なう。 【選択図】図１

Fixed constant velocity universal joint, and bearing device for wheels

シール部材

【課題】 耐フッ素系流体性に優れたシール部材及びそのシール部材を用いたバルブを提供する。 【解決手段】 本発明にかかるシール部材は、フッ素含有量が６５質量％以下の３元系含フッ素エラストマー１００質量部に対し、カーボンナノファイバー５質量部〜２５質量部と、カーボンブラック１０質量部〜４０質量部と、を含む。シール部材は、１３０℃のパーフルオロポリエーテル（＞９９．９％［Ｗ／Ｗ］）に１０３時間浸漬する耐液性試験後の５０％伸び時の応力が８ＭＰａ以上である。シール部材は、耐液性試験の前後において体積変化率が４．０％以下である。本発明にかかるバルブＶは、そのシール部材９を用いている。 【選択図】 図１

動力伝達部材の製造方法

【課題】鋼管の端部に絞り加工を施すことによって小径部を成形するに際し、高精度な小径部を低コストに成形可能とする。 【解決手段】鋼管３０の端部に絞り加工を施すことにより、外径面に動力伝達用の連結要素が設けられる小径部４を成形する。鋼管３０の両端面３０ａ１，３０ｂ１を拘束した状態で端部３０ｂに絞り加工を施すことによって小径部４を成形する。このようにすれば、絞り加工が施される端部３０ｂの肉が、絞り加工に伴って自由に軸方向移動するような事態を防止することができる。 【選択図】図３

ニードルバルブ

【課題】微小流量制御特性に優れたニードルバルブを提供する。 【解決手段】本発明にかかるニードルバルブは、流入口と流出口を有する弁本体内の弁室に傾斜面を有する弁座を設け、この弁座に離接するニードルによって流量制御を行うニードルバルブである。ニードルは、傾斜面に対し離接するＯリングを有する。Ｏリングは、エラストマー中にカーボンナノファイバーを含む炭素繊維複合材料で形成される。そこで、Ｏリングのつぶし率を１１％以下に設定することができた。 【選択図】図１

トリポード型等速自在継手のトリポードの製造方法

【課題】鍛造パーティングラインを効率的に低減ないし除去し、トラニオンジャーナル付根部の強度を向上すること。 【解決手段】トリポードの鍛造パーティングラインＰを、バレル加工で低減ないし完全除去した後、旋削、熱処理、研磨などの後加工を施すことを特徴とするトリポードの製造方法である。 【選択図】 図１

高分子材料の耐塩素性評価方法とその評価装置

【課題】高分子材料を直接測定することなく定量的かつ連続的に試験を実施して高分子材料の耐塩素性を正確に評価できる高分子材料の耐塩素性評価方法とその評価装置を提供する。 【解決手段】高分子材料１３を所定容積の収納部２に収納した状態で所定濃度の塩素系水溶液１１に浸漬させ、所定時間ごとに前記収納部２内の水溶液１１を交換し、その交換時の水溶液１１ごとに遊離残留塩素濃度を検出部３により連続的に測定し、その測定結果より高分子材料１３の耐塩素性を評価するようにした高分子材料の耐塩素性評価方法である。 【選択図】 図１

Bearing device for wheel, and axle module

A bearing device for a wheel has a hub wheel and a constant velocity universal joint with an outer joint member. Projecting portions extending in an axial direction are provided on one of an outer surface of a shaft section of the outer joint member and an inner surface of a hole portion of the hub wheel. The projecting portions are press-fitted into the other along the axial direction, and recessed portions are formed in the other through press-fitting of the projecting portions. Thus, a recess-projection fitting structure is formed, in which the projecting portions and the recessed portions are held in close contact with each other through an entire region of fitting contact regions therebetween.

Bearing device for a wheel

A bearing device includes a recess-projection fitting structure in which a hub wheel and a shaft section, which is fitted in a hole of the hub wheel of the outer joint member of the constant velocity universal joint, are unitized together. In the recess-projection fitting structure, entire fitting regions among projections on the outer surface of the shaft section of the outer joint member and recesses, which fit on the projections, are brought into intimate contact with each other.