Abstract: A connecting apparatus of a vehicle seat includes a member with internal teeth; a member with external teeth that is assembled to the member with internal teeth so as to rotate relative to the member with internal teeth while changing a meshing position; a pair of wedge members that are arranged in a gap between the members, and that prevent the members from relative rotation by being urged in a circumferential direction of the connecting members, while sliding against the connecting members, so as to become jammed between the connecting members; and an operating shaft that moves the wedge members in a direction against the urging force, and rotates the gear with external teeth with respect to the gear with internal teeth. A resin composition in which polyethylene has been added to a binder resin is coated onto sliding surfaces of the wedge members.

Abstract: A gear assembly may include first and second gear wheels meshing with each other and having a meshing line. The meshing line is formed as a circular arc that is positioned between first and second curves to determine a meshing range of the meshing line, so as to extend from a point on the first curve positioned radially inside the second curve in a circumferential direction in which the second curve is radially outwardly spaced from the first curve and to reach a point on the second curve. The circular arc is centered on a center point that is offset from a reference straight line passing through a pitch point of first and second pitch circles of the first and second gear wheels and centers of the first and second pitch circles.

Abstract: Tooth shapes of gears are formed such that a meshing line given by meshing of an inner gear and an outer gear provided in a state of meshing with each other for enabling transmission of a power is configured as a spiral mesh line.

Abstract: An internal gear member and an external gear member of a reclining device are axially inserted into a cylindrical interior of a retainer member in order, so that the internal gear member that is inserted first faces a first bottom surface that is formed in an insertion direction side end periphery of the retainer member, and that the external gear member that is inserted later contacts a second bottom surface that is positioned closer to a reception side relative to the first bottom surface. A reception side end periphery of the retainer member is bent radially inwardly, so that the external gear member is integrated with the retainer member. A rear outer surface corresponding to a rear side surface of the first bottom surface of the retainer member has a radial width that corresponds to at least the sum of a radial width of the first bottom surface and a radial width of the second bottom surface.

Abstract: A hook that constitutes a locking device is pushed and rotated in accordance with movement of a striker that moves into a recessed portion of a base plate, and the striker S is sandwiched between the hook and the recessed portion. As the hook rotates, a pole rotates under bias force to a position at which the pole is engaged with the hook, so as to restrict rotation of the hook for returning to the initial position. The hook, when placed in the initial position, is held in a condition in which a corner portion of the hook is pressed under bias force against a stopper face of the pole, such that the hook is inhibited from rotating. The stopper face is curved in the shape of an arc drawn about a first support shaft that supports the pole.

Abstract: A connecting device may include first and second connecting elements that are axially oppositely coupled to each other so as to be rotatable relative to each other, and a retainer member that is arranged and constructed to clamp the first and second connecting elements. The second connecting element has a plurality of radially projected portions and a plurality of radially depressed portions that are respectively formed in a circumferential end surface thereof. The retainer member has a first retainer portion, a second retainer portion, a plurality of fixing portions and a plurality of supplemental retainer portions. The supplemental retainer portions are arranged and constructed to be axially supported by a support die of a crimping machine when the end peripheries of the fixing portions are crimped while the second retainer portion is axially supported by the support die.

Abstract: One aspect of the invention includes a seat movable in a front-rear direction between an in-use position and a stored position. The seat is moved in the front-rear direction via a link. The link is coupled pivotally in the front-rear direction. One end of the link is coupled to a coupling member fixed to the seat. The other end of the link is coupled to a coupling member fixed to the floor. The link and the respective coupling members are coupled to each other using an axial member. The insertion hole is formed in a shape that inhibits the axial member from undergoing positional displacement in the front-rear direction within the insertion hole when the seat is at the in-use position and allows the axial member to undergo positional displacement in the front-rear direction within the insertion hole as the seat is moved from the in-use position to the stored position.

Abstract: Each of reclining devices is formed so as to have a different size. An external gear wheel of each of the reclining devices has a diameter smaller than an internal gear wheel thereof and has a teeth number different from the internal gear wheel. The internal gear wheels and the external gear wheels of the connection devices respectively have the same teeth number as each other. The internal gear wheels and the external gear wheels of the connection devices are formed such that distances between centers thereof are equal to each other. Further, a meshing line of the internal gear wheel and the external gear wheel of each of the connection devices is formed between two curves defining a meshing range and is drawn as a line that extends from a side of a radially inwardly positioned curve in a circumferential direction in which the two curves are gradually spaced from each other and reaches to a side of a radially outwardly positioned curve.

Abstract: One aspect of the present invention can include a vehicular seat having a first member, a cooperatively moving apparatus configured to release a lock apparatus from being locked in cooperation with a movement of the first member, and a second member configured to be adjusted when the lock apparatus is released. Further, the cooperatively moving apparatus includes a main cooperatively moving member connected to the first member and capable of cooperative movement with the first member, and a sub cooperatively moving member connected to the lock apparatus and capable of being moved by receiving a force from the main cooperatively moving member. Also, a hold mechanism is provided between the main cooperatively moving member and the sub cooperatively moving member, the hold mechanism is capable of holding the lock apparatus in a lock release state by holding a portion of the sub cooperatively moving member by a predetermined amount while operating the main cooperatively moving member.

Abstract: A reclining device as a connecting device includes an internal gear member, an external gear member and a retainer member. The retainer member is constructed such that when retainer strips are axially inserted into depressed portions formed in an outer circumferential portion of the external gear member and then insertion distal ends of the support strips are radially inwardly bent to form contact surface portions, the contact surface portions can be axially held against the outer circumferential portion of the external gear member. The external gear member has dowels that are capable of being fitted to a cushion frame, and the dowels are formed circumferentially in locations positioned between the depressed portions (the locations in which projected portions are formed), so as to be axially projected.

Abstract: One aspect of the present invention can include a connecting apparatus for rotatably connecting a first and second object member of a vehicular seat relative to each other having a first and second connecting member and a holding member. The first and second connecting member are integrated in a direction of matching disks thereof to be able to rotate relative to each other. The first connecting member is integrally attached to the first object member. The second connecting member is integrally attached to the second object member. The holding member straddles outer peripheral surfaces of the first and second connecting member to hold the connecting members in a plate thickness direction. The holding member is provided with an opening portion. The first connecting member is provided with a protruding portion. The protruding portion extends through the opening portion in a radial direction, and the protruding portion is attached to the first object member.

Abstract: A gear assembly may include first and second gear wheels meshing with each other and having a meshing line. The meshing line is formed as a circular arc that is positioned between first and second curves to determine a meshing range of the meshing line, so as to extend from a point on the first curve positioned radially inside the second curve in a circumferential direction in which the second curve is radially outwardly spaced from the first curve and to reach a point on the second curve. The circular arc is centered on a center point that is offset from a reference straight line passing through a pitch point of first and second pitch circles of the first and second gear wheels and centers of the first and second pitch circles.

Abstract: A gear assembly may include first and second gear wheels meshing with each other and having a meshing line. The meshing line is formed as a combined line that is positioned between first and second curves to determine a meshing range of the meshing line, so as to extend from a point on the first curve positioned radially inside the second curve in a circumferential direction in which the second curve is radially outwardly spaced from the first curve and to reach a point on the second curve. The combined line is composed of a combination of a plurality of line portions.

Abstract: Tooth shapes of gears are formed such that a meshing line given by meshing of an inner gear and an outer gear provided in a state of meshing with each other for enabling transmission of a power is configured as a spiral mesh line

Abstract: A connecting device may include first and second connecting elements that are axially oppositely coupled to each other so as to be rotatable relative to each other, and a retainer member that is arranged and constructed to clamp the first and second connecting elements. The second connecting element has a plurality of radially projected portions and a plurality of radially depressed portions that are respectively formed in a circumferential end surface thereof. The retainer member has a first retainer portion, a second retainer portion, a plurality of fixing portions and a plurality of supplemental retainer portions. The supplemental retainer portions are arranged and constructed to be axially supported by a support die of a crimping machine when the end peripheries of the fixing portions are crimped while the second retainer portion is axially supported by the support die.

Abstract: One aspect of the invention includes a seat movable in a front-rear direction between an in-use position and a stored position. The seat is moved in the front-rear direction via a link. The link is coupled pivotally in the front-rear direction. One end of the link is coupled to a coupling member fixed to the seat. The other end of the link is coupled to a coupling member fixed to the floor. The link and the respective coupling members are coupled to each other using an axial member. The insertion hole is formed in a shape that inhibits the axial member from undergoing positional displacement in the front-rear direction within the insertion hole when the seat is at the in-use position and allows the axial member to undergo positional displacement in the front-rear direction within the insertion hole as the seat is moved from the in-use position to the stored position.

Abstract: One aspect of the present invention can include a vehicular seat having a first member, a cooperatively moving apparatus configured to release a lock apparatus from being locked in cooperation with a movement of the first member, and a second member configured to be adjusted when the lock apparatus is released. Further, the cooperatively moving apparatus includes a main cooperatively moving member connected to the first member and capable of cooperative movement with the first member, and a sub cooperatively moving member connected to the lock apparatus and capable of being moved by receiving a force from the main cooperatively moving member. Also, a hold mechanism is provided between the main cooperatively moving member and the sub cooperatively moving member, the hold mechanism is capable of holding the lock apparatus in a lock release state by holding a portion of the sub cooperatively moving member by a predetermined amount while operating the main cooperatively moving member.

Abstract: A reclining mechanism for a vehicle seat includes first and second attachment members coupled with each other at their outer peripheries and connected by a hinge pin, a slide pawl slidably mounted within one of the attachment members, and a cam element mounted on the hinge pin in a space between the attachment members. The cam element is engaged with the slide pawl to maintain engagement with the ratchet portion of the attachment member when the hinge pin is retained in a torsion spring load position. This construction permits relative rotation of the attachment members for adjustment of an inclined angle of a backrest. In the reclining mechanism, a thrust member is coupled with one of the attachment members and welded to a frame structure of the back rest allowing the device to be assembled as a unit.

Abstract: Vehicle seats are taught that comprise a cushion frame (10) having a pair of frame elements (12) and a cylindrical connector member (14) that interconnects the frame elements. At least one seatbelt pretensioning device (20, 40) preferably exerts a traction force on a seatbelt when the vehicle is subjected to an impact. The pretensioning device may include a drive force generating means (22, 42) and a movable member (26, 46). The drive force generating means and the movable member are preferably received within a cavity of the connector member. The movable member is preferably arranged and constructed to move along the connector member when the drive force generating means is actuated.