A chair for reducing a load on the buttocks and the waist, and, to a chair (100) includes a seat (110) and a backrest (130) and further comprising a spacer (120) protruding upward from the rear end of the seat (110), wherein the bottom of the backrest (130) is provided on the top of the spacer (120) so as to be tiltable rearward, and the point at which the angle of the backrest (130) is adjusted with respect to the spacer (120) corresponds to a point (P) at which the lumbar of a user body sitting on the seat (110) is curved inward.

The present invention relates to a back pressing-type lumbar support. The back pressing-type lumbar support of the present invention comprises: a pair of back pressing units disposed apart from each other and having pressing plate portions that press the shoulder blade parts at the rear of the shoulders of a person seated in a chair; and unit supporting portions supporting the pair of back pressing units.

The invention relates to a chair (1) comprising a seat (4), a backrest support (2) and a backrest (3), the backrest support (2) being mounted on the seat (4) and the backrest (3) being mounted on the backrest support (2), and the chair (1) being designed such that, in a sitting position, a user can sit on the seat and rest his back against the backrest (3). The chair (1) also has a counter-rest part (5) which differs from the backrest (3), the backrest (3) being tiltably connected to the backrest support (2), such that it can be folded in the direction of the seat (4) from the sitting position into a support position, and the counter-rest part (5) being coupled to the backrest (3) in such a way that the backrest (3), when folding from the sitting position into the support position, aligns the counter-rest part (5) such that the user can support his buttocks on the counter-rest part (5).

An extendable seating interconnected mechanism and a seating supporting frame, including an interconnected assembly, a seating frame, and a backrest mount, wherein the backrest mount is rotatably connected to the interconnected assembly and the seating frame, respectively; the interconnected assembly includes a mounting plate and a driving link, wherein the mounting plate includes a lateral-plate part and a supporting part; the driving link is rotatably connected between the seating frame and the lateral-plate part; an end of the supporting part is connected to the lateral-plate part; and an opposite end of the supporting part is rotatably connected to the backrest mount. The interconnected mechanism and the seating supporting frame optimize and simplify the structure, leading to a compression of the height of the seating supporting frame; different seating positions may be adjusted smoother by connecting the extendable and retractable footrest mechanism and interconnected assembly, which improves the seating comfort.

A home or office chair is disclosed having a flexible mesh back rest and a full lumbar back support including upper and lower lumbar supports that are located one above the other at the back of the chair to press against the outside of the mesh back rest. The upper and lower lumbar supports are connected to the back of the chair by a bolt so as to move back and forth in first and opposite directions in response to a user seated in the chair moving his back against and away from the flexible mesh back rest. The upper and lower lumbar supports of the full lumbar back support apply continuous pressure through the mesh back rest to provide support for upper and lower lumbar areas of the user's back regardless of whether the user's back is at rest or pressing against the mesh back rest.

A chair is described herein. The chair includes a first back support coupled to a base of the chair using one or more first support arms. The chair also inclues a second back support coupled to the base of the chair using one or more second support arms. The first and second back supports are independently rotatable.

The structure for adjusting a support force of a lumbar pillow includes: a backrest bracket, a lumbar pillow, an elastic support, and an adjustment mechanism; wherein a top of the lumbar pillow is flexibly connected to a front side of the backrest bracket; one end of the elastic support is connected to a back of the lumbar pillow, and the other end of the elastic support is provided with a slider, the slider being provided with an internally threaded hole; the adjustment mechanism includes a lead screw; and in response to the lead screw rotating with respect to the backrest bracket, the slider slides upward and downward along the vertical direction of the backrest bracket to change a support angle of the elastic support for the lumbar pillow, such that a magnitude of the support force of the elastic support to the lumbar pillow is adjusted.

A structure for adjusting a support force of a lumbar pillow includes: a back hugger body, a lumbar pillow, an elastic support, and a support adjustment mechanism; wherein a bottom of the back hugger body is hinged to a top of the lumbar pillow, and a back of the back hugger body is provided with a connection arm; one end of the elastic support is connected to a back of the lumbar pillow, and the other end of the elastic support is connected to a front side of the connection arm; and the support adjustment mechanism includes a slide block and a drive assembly connected to the slide block, wherein the slide block is slidably connected between the elastic support and the connection arm and is abutted against a back of the elastic support.

The present disclosure provides a back body support 1000 that is provided with the related assemblies, such as a primary elongated cushion member 100, a secondary elongated cushion member 200, a headrest extension member 300, a flexible seating support member 400, a tail bone and buttocks support member 500, a rigid seat member 600, and a posture correction member 700, which may be coupled to one another to provide one or more combinations to be used by a user in one or more ways, such as while sitting or while walking, to provide support to back portion thereof, particularly, along the spine, and pelvis and buttock portion of a body of the user.

An actuating mechanism for lumbar support in an articulating bed incorporates a support frame for an articulating section having a seat section and an upper body support section. An actuator with a ram is pivotally attached to the upper body support section with a bracket. A lumbar actuation lever is pivotally attached to the ram and extends from a torque tube rotatable in bearing blocks mounted to the upper body support section. A second actuator is pivotally attached to the upper body support section with a second bracket and includes a second ram. At least one angled lifter arm extends from the torque tube and pivotally attaches to at least one lever engaging a lumbar support element through at least one aperture in the upper body support section. An actuator element extends from at least one lever and is connected to the second ram. The actuator element and associated lever rotate about a pivot point on the associated angled lifter arm.