A seating assembly includes a seat and an upright coupled with the seat. A pliable backrest is coupled with the upright and includes a support face and a coupling face. The pliable backrest includes a pliable material extending between the support and coupling faces. The support face is a first exterior face of the pliable back rest and the coupling face is a second exterior face of the pliable back rest. The coupling face is spaced away from the upright with a deformation gap. Another seating assembly includes a joint assembly along the upright member. The joint assembly includes a pivot configured to promote rotation of a first upright portion of the upright relative to a second upright portion. The joint assembly includes opposed stop interfaces configured to control rotation of the first upright portion relative to the second upright portion.

A multi-gear adjustable support mechanism includes a base plate, a support plate, a support element, a gear forming element having gear grooves and a limiting part and a gear controller having an abutting part and a platform. The support element includes a support crossbar for supporting the support plate at a different angle from the base plate. A moving surface of the gear forming element bears and supports the movement of the support crossbar. The platform is aligned with the moving surface at the position of the gear groove closest to the limiting part when the support crossbar moves and reaches the limiting part. The support crossbar moves on the surface of the platform part and passes the gear groove when the support crossbar returns from the limiting part. An adjustable seat is provided including the multi-gear adjustable support mechanism.

A reclining seatback support device which mainly includes at least one seatback support and a seatback body is revealed. The seatback body and an upper end of the seatback support are provided with pivot bracket portions pivotally connected to each other while a lower part of the seatback body and the seatback support are connected by a swing arm. When a user is sitting and lying down on the back, the seatback body is rotated around the pivot axis where the seatback body is pivotally connected to the upper end of the seatback support and then reclined at a certain angle. By elastic segments of the seatback body and the swing arm between the lower part of the seatback body and the seatback support for pulling and limiting the seatback body, the user can lean on the seatback body comfortably and safely.

A vehicle seat comprising: a seat cushion frame that structures a frame of a seat cushion and that is configured to support buttocks of a seated vehicle occupant; a seat cushion pad mounted to the seat cushion frame; and a pelvis supporting portion having a push-up portion that is provided at a seat lower side of the seat cushion pad along a seat left-right direction and that, by being displaced toward a seat upper side, pushes a seat rear side portion of the seat cushion pad toward the seat upper side.

A body support structure includes a frame and a membrane attached to the frame. The membrane includes elastomeric filaments. The membrane includes different regions with different stiffness. The membrane may form a part of a seat or a backrest.

A posture correcting chair having a back rest assembly providing mounting attachments for a head or neck rest, a lumbar support, at least one arm rest, and a posture retainer and supported by a seat assembly. The headrest, lumbar, seat and back support all adjust to allow a user to distribute their weight about a greater number of surfaces for adaptive comfort. A posture retainer affixed to the back rest assembly dynamically adjusts to the contour of a user's body based on force and pressure created while seated to provide active posture correction for a user to prevent slumping or slouching. A knee rest assembly is attached to rail system on a lower end of chair the base platform to provide additional support surfaces. The seat and knee rest assembly include heating, cooling or vibrating or massaging.

A seating or furniture assembly may include a seat bottom, a seatback, and a lumbar adjustment assembly. The seatback is disposed adjacent the seat bottom and includes a seatback frame. The lumbar adjustment assembly may be mounted to the seatback frame and may include a rail, a threaded rod disposed within the rail, a first slider block slidably engaging the rail, a second slider block slidably engaging the rail, a third slider block engaging the rail, a lumbar pad, and a plurality of links connecting the lumbar pad to the first, second, and third slider blocks. The threaded rod includes a first threaded section having threads with a first handedness and a second threaded section having threads with a second handedness that is opposite the first handedness. The first and second slider blocks threadably engage the first threaded section. The third slider block threadably engage the second threaded section.

A seat back support with an adjustable support curvature, the support including: a frame; at least one elongate deformable member extending between side portions of the frame; and an elongate adjustment element that intersects one or more of the at least one deformable member(s), wherein manipulation of the adjustment element adjusts the deformation of the one or more deformable member(s) with which it intersects to adjust the curvature of the back support.

An adjustable lumbar support system for a chair having a single swing bar. An actuator is mounted between the lumbar support base and the chair frame and may be motorized. Extending the extension shaft of the actuator provides additional support to a user seated in the chair.

The present invention relates to a lumbar support for fastening to a backrest of a seat, comprising or consisting of a lumbar support body and a fastening strap fastened to at least two points on the lumbar support body, the fastening strap being of substantially inelastic form in a bracing direction, and the bracing length of the fastening strap being adjustable using at least one bracing means. The invention furthermore relates to the use of the lumbar support according to the invention with a backrest of a seat.