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 stowaway compact rocker having a set-up condition and a collapsed and bundled condition comprises a stationary chair frame base; a movable seating chair frame adapted for rocking movement relative to the stationary chair frame base; and a rocker mechanism operatively connected between the stationary chair frame base and the movable seating chair frame. The stationary chair frame base comprises a central axle tube; a pair of leg plates disposed on the central axle tube; front leg tubes; and rear legs tubes, each leg tube being adapted for connection to a leg plate. The movable seating chair frame comprises a pair of seat tube plates mounted on the central axle tube for rotation thereabout; seat member tubes, each being adapted for connection to a respective one of the seat tube plates; and back-rest tubes, each being adapted for connection to a respective one of the seat tube plates.

A body support structure includes a base, a seat and a backrest, with the backrest connected to the base with a torsion leaf spring. The torsion leaf spring may be configured with a plurality of fingers, and/or one or more flex regions. One or more struts may be connected between the seat or backrest and the base. In another aspect, the seat and/or backrest may be supported with one or more links that provide a counter-intuitive motion. In another aspect, a link may be coupled to a support with a flexible blade.

A reconfigurable apparatus for sitting and having a seat mounted on a frame and movable under the weight of a sitting user. As an incident of the user sitting, resistance to movement of a back rest component is increased a predetermined amount based upon the user's weight. A manually operable subassembly allows the increased resistance to be changed from the predetermined amount with the user sitting on the seat.

A chair for providing seating support to a user and for providing ways for the user to perform exercises. The chair includes a back support that is flexible such that when a force is applied to it by the user's body, the back support bends. The back support may be configured to adapt to the curvature of the user's spine when the user is seated in the chair. The back support may further be configured such that the user can rotate the back support by rotating the user's upper body.

A chair includes a seat surface and a laterally pivotable backrest. The backrest is secured to two joints, which have mutually parallel axes of rotation.

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 reconfigurable apparatus for seating a user and having: a frame; a seat movable relative to the frame between: a) a first position in which the seat resides with no user sitting on the seat; and b) a loaded position; a back rest with a changeable angular orientation relative to the frame; and an adjusting assembly having a plurality of gears that move relative to each other as an incident of the seat moving from the first position into the loaded position to thereby cause an increase in resistance to changing of the angular orientation of the back rest.

A chair, comprising, a backrest, a seat coupled with the backrest, a column coupled with the seat, a linkage statically attached to the backrest and rotatably attached below the seat, a leaf spring statically attached at one end and in direct contact with the linkage to provide a resistance to tilting of the backrest relative to the column, a first structure fixed to the column. A portion of the first structure has an arc shape that includes one or more teeth, and a second structure in contact with the first structure. The chair is configured such that, when a weight is applied to the seat, one or more teeth of the second structure move along the one or more teeth of the first structure to shorten a working length of the leaf spring and provide an increased resistance to tilting of the backrest relative to the column.

The invention relates to a chair, in particular an office chair, comprising a seat surface and a laterally pivotable backrest, wherein the backrest is secured to two joints, which have mutually parallel axes of rotation.