A child safety seat includes a backrest assembly including a first, a second, and a third portion slidably connected with one another, and a backrest adjusting system carried with the backrest assembly and configured to provide a first stage of height adjustment where the first and second portions are locked with each other and the third portion is movable relative to the first and second portions for adjustment, and a second stage of height adjustment where the second portion is locked with the third portion so that the second and third portions are movable in unison relative to the first portion for adjustment. The third portion carries an adjustment latch that engages with the second portion for locking the third portion in position in the first stage of height adjustment and engages with the first portion for locking the third portion in position in the second stage of height adjustment.

A vehicle seat is disclosed. The vehicle seat includes reclining lock mechanisms for releasably locking a seat back, a first releasing mechanism for unlocking the reclining lock mechanisms and causing the seat back to be brought to a condition where the seat back is allowed to be pivoted forward and rearward, the first releasing mechanism including a collapsible link bar member 70, a braking link 71 having a laterally projecting induction pin 72, a first link plate 73, and a first operating lever 7, a tipping-up lock mechanism for releasably locking a seat cushion, the tipping-up lock mechanism including cutout teeth 52a to 52c provided at the seat cushion, and a latch 80 and a cam member 81 which are supported to the seat back, and a second releasing mechanism for unlocking the tipping-up lock mechanism and causing the seat cushion to be brought to a condition where the seat cushion is allowed to be pivoted, the second releasing mechanism including a recess portion 80d formed in the latch 80 for allowing the cam member 81 to be swung up, a second link plate 82, and a second operating lever 8.

An adjustment device includes a housing in which a rotary element is rotatably mounted about a rotational axis, a locking device having a first locking element, connected in a rotationally fixed manner to the rotary element, and a second locking element arranged on the housing and which can be reversibly moved between a primary position in a locked situation, in which the locking elements have a form- and/or force-locking connection, and a secondary position without the connection. An adapter plate is rotates relative to the rotary element and the housing. An unlocking element cooperates with the adapter plate in an actuator region when the second locking element is transferred into the secondary position. The second locking element is shifted by an unlocking height in the unlocking region, and by a lifting height in the actuator region. The actuator region is arranged with the lifting height smaller than the unlocking height.

A seat-back adjustment system for a seat for a vehicle may include a frame member configured for attachment to a support structure of the vehicle, and a rack arrangement movably attached to the frame member. The rack arrangement may include an adjustment rack and a locking rack. A driving arrangement may include at least one gear intermeshing with the adjustment rack and operable to move the rack arrangement relative to the frame member, and a locking arrangement may include at least one locking element operable to engage the locking rack when the vehicle experiences at least a predetermined negative acceleration.

A modular backrest control includes a mounting bracket, a pivot bracket attached to the mounting bracket, a pivot rod rotatably mounted on the pivot bracket, a lever arm mounted on the pivot rod, and a user actuated lever handle rigidly mounted on the pivot rod. The lever arm is rotatable from a first position to a second position. The lever arm has a connector for attachment to a backrest actuation cable. The user actuated lever handle is rotatable between a lock position and a release position such that rotation of the lever handle from the lock position to the release position causes rotation of the lever arm from a first position to a second position. Characteristically, rotation from the first position to the second position actuates the backrest actuation cable.

A structure in which two worm wheels are disposed across a worm provides an increase in locking reliability while maintaining stable operation during rotation. At the time of rotation, respective rotating fulcrums set at both end portions in an axial direction of a worm are supported by bearing parts. At the time of locking, a locking fulcrum set at an eccentric position on one end portion in the axial direction of the worm is supported by one bearing part, while on the other end portion in the axial direction, the rotating fulcrum is supported by the other bearing part as is. As a result, the angle of lead of the worm supported by the pair of bearing parts is changed between the time of rotation and the time of locking and becomes smaller at the time of locking than at the time of rotation, whereby an increase in locking reliability can be achieved.

A vehicle seat and an angle adjustment device are provided. The angle adjustment device includes an unlock cam, a ratchet wheel provided with internal teeth, and a plurality of slide blocks disposed circumferentially and provided with external teeth. The angle adjustment device further includes a plurality of extension and retraction blocks corresponding to the slide blocks, wherein the extension and retraction block is capable of driving the slide block to move outwards in a radial direction so as to engage the internal teeth with the external teeth. A second elastic member is provided between two adjacent extension and retraction blocks, and two ends of the second elastic member in a deformation direction are respectively connected to the unlock cam and the extension and retraction block.

An adjusting device (1) for a motor vehicle interior component includes a housing (3) in which a rotational element (2) is provided in a rotatable manner about a rotation axis (100). A first locking element (21) is rotationally fixed to the rotational element (2), and a second locking element (22) is provided on the housing (3). The locking elements are reversibly movable relative to each other from a locked situation, in which the locking elements (21, 22) interact with each other in a positively and/or non-positively engaged manner, into an adjustment situation, in which said positive and/or non-positive engagement is released. The adjusting device has an adapter plate (23) which is provided in a rotatable manner relative to the rotational element (2) and the housing (3) and at least temporarily drives a locking element (21, 22).

A vehicle-seat-recliner assembly may include first and second recliner hearts, a release handle, a cross-member, a handle pin, a handle-travel-limiter, and a reinforcement member. The release handle is connected with the first recliner heart and is rotatable relative to the brackets to move the first recliner heart between locked and unlocked states. The cross-member is connected to the recliner hearts and transmits torque from the release handle to the second recliner heart to move the recliner hearts between the locked and unlocked states. The handle pin engages the release handle. The handle-travel-limiter may include a flange portion and a shaft portion. The shaft portion may include an aperture configured to receive the cross-member. The flange portion extends radially outward from the shaft portion. The handle pin engages the handle-travel-limiter. The reinforcement member may be fixed to the handle-travel-limiter and the handle pin.

A brake device for a motor vehicle seat is composed of a brake assembly, a tooth assembly, and a lever assembly. The brake assembly includes a housing, a pinion shaft, a braking component, and a drive wheel that are structured to be self-held in an assembled state by mechanical interaction thereamong. The tooth assembly includes a holder plate and a tooth plate that are structured to be self-held in an assembled state by mechanical interaction therebetween. The lever assembly includes an input lever, a cover, a coil spring, and a lever bracket that are structured to be self-held in an assembled state by mechanical interaction thereamong. The brake assembly, the tooth assembly, and the lever assembly are arranged and assembled together in an axial direction.