A seat assembly includes a seat cushion frame, a seat back frame, a bracket, a pin actuator, a sensor, and an electronic control unit. The seat back frame is pivotally connected to the seat cushion frame about a pivot axis. The bracket is fixed to the seat cushion frame. The bracket includes a cam surface, and a distance between the cam surface and the pivot axis varies along the cam surface. The pin actuation includes a pin. The pin actuator is fixed to the seat back frame. The pin actuator is configured to move the pin from a disengaged position to an engaged position. The electronic control unit determines whether the sensor detects the front collision of the vehicle and controls the pin actuator to move the pin from the disengaged position to the engaged position.

A seat assembly includes a seat cushion frame, a seat back frame, a bracket, a pin actuator, a sensor, and an electronic control unit. The seat back frame is pivotally connected to the seat cushion frame about a pivot axis. The bracket is fixed to the seat cushion frame. The bracket includes a cam surface, and a distance between the cam surface and the pivot axis varies along the cam surface. The pin actuation includes a pin. The pin actuator is fixed to the seat back frame. The pin actuator is configured to move the pin from a disengaged position to an engaged position. The electronic control unit determines whether the sensor detects the front collision of the vehicle and controls the pin actuator to move the pin from the disengaged position to the engaged position.

A method for manufacturing a recliner heart may include supporting a guide plate of the recliner heart with a first support member, positioning a first block onto the guide plate opposite the first support member, positioning a second block in a recess of the guide plate, and applying a force to the first block. The second block may be disposed in the recess such that a gap is formed between the guide plate and the second block. A force may be applied to the first block such that material of the guide plate moves into the gap formed between the guide plate and the second block.

Device for connecting a region, which is lower when viewed in the vehicle seat height direction, of a backrest to a region, which is rear when viewed in the vehicle seat length direction, of a seat part of a vehicle seat, a tilt adjustment device which is rotatable about a first axis of rotation extending in the vehicle seat width direction for adjusting a tilt of the backrest relative to the seat part being connected to the seat part, wherein the device comprises an adapter element which is rigidly connected to the tilt adjustment device and is rotatable about the first axis of rotation, which element has a first recess which extends at a first angle to a backrest length direction, the first recess being able to be connected to a first tab which is arranged on the backrest and is formed so as to be complementary to the first recess.

A hinge comprising a first and a second plate intended to be connected respectively to a first and to a second vehicle seat element, the first plate comprising a base toothed portion with N teeth, a plurality of sets of rolling elements, each radially movable between at least one locking position, in which the rolling element is at least partially engaged in a space between two teeth, and an unlocking position in which the rolling element is disengaged from the space, a plurality of movable cams, each cooperating with the rolling elements of a different set, so as to cause the rolling elements to transition from their unlocking position to a locking position, and vice versa, and a control hub, able to move the cams.

A hardware system, for a vehicle seat, includes a fitting (10) having a first fitting part (11) and a second fitting part (12), which can be locked to one another and can rotate in relation to one another about an axis (A), a transmission rod (7) and a hand lever (5), the actuation of which rotates the transmission rod (7). The fitting is unlocked via a rotation of the transmission rod against a total characteristic torque (M.sub.overall), produced from a sum of a first characteristic torque (M.sub.35), generated by a spring assembly (35), and a second characteristic torque (M.sub.61), generated by spiral springs (61). A first component (63) is rotationally fixed to the transmission rod and a second component (64) moves relative thereto during unlocking. The spiral springs (61) act between the first component (63) and the second component (64). A vehicle seat is provided having the hardware system.

A vehicle seat including: a cushion frame; a back frame; a recliner; and a clamping plate, wherein the clamping plate is provided with: a burring portion to which a projection portion of the recliner is fitted from an inner side thereof and an outer side thereof is fitted to a loosely fitted through hole of the back frame; and an abutting wall portion which is abutted on a standing wall portion of the back frame from an inner side in a radial direction, and wherein the clamping plate is fixed to the recliner in a state where the clamping plate and the recliner clamp the back frame by fitting the outer side of the burring portion to the loosely fitted through hole, fitting the inner side of the burring portion to the projection portion, and causing the abutting wall portion to be abutted on the standing wall portion.

A vehicle seat includes a back frame mounted on a cushion frame is a recliner in a pivotally movable manner. The back frame has a support member connected to the recliner, and a seat back shell supported by the support member. The support member has a side plate portion and a rear plate portion facing a side surface and a rear surface of the seat back shell, respectively, and the side plate portion has a base portion fixed to the recliner, and an extension portion provided to extend more upward than the base portion. The side plate portion is fixed at the extension portion to the side surface of the seat back shell, and the rear plate portion is at least fixed in a region to the rear surface of the seat back shell, the region provided to rise from a lower position of the side plate portion.

A vehicle seat (1), transferrable from a usage position for transporting persons to a non-usage position, includes a seat cushion (3) having a seat cushion support (3a), a backrest (5), a vehicle connectable base (9) and a rocker (13), which is pivotably connected by a first joint (I) to the base or to a component (11) fixed to the base and is pivotably connected by a second joint (II) to the seat cushion support. A rear foot (21) is pivotably connected by a third joint (III) to the base or to a component fixed to the base. Pivoting motion of the rear foot about the third joint is lockable. The rear foot is pivotably connected by a fourth joint (IV) to the backrest. A fifth joint (V) connects the backrest to the seat cushion support. At least one of the joints (I, II, III, IV, V) is a fitting (25).

An occupant support adapted for use in a vehicle includes a seat bottom coupled to a floor of the vehicle and a seat back configured to pivot about a seat-back pivot axis relative to the seat bottom. The occupant support further includes a seatback-motion controller configured to control movement of the seat back relative to the seat bottom between a blocked arrangement and a freed arrangement.