A chair includes a frame configured to expand radially outward and collapse radially inward relative to a central longitudinal axis between a folded position and an open position. The frame includes front legs and at least one rear leg. A length of each of the front legs is independently adjustable between a first position and a second position that is longer than the first position. The chair includes a seat bottom held by the frame such that an angle of the seat bottom relative to a level plane is selectively adjustable between at least two different angles by adjusting the length of at least one of the front legs.

A chair includes a frame configured to expand radially outward and collapse radially inward relative to a central longitudinal axis between a folded position and an open position. The frame includes front legs and at least one rear leg. A length of each of the front legs is independently adjustable between a first position and a second position that is longer than the first position. The chair includes a seat bottom held by the frame such that an angle of the seat bottom relative to a level plane is selectively adjustable between at least two different angles by adjusting the length of at least one of the front legs.

A back support assembly for the back of a chair that rocks back and forth. The back of the chair includes a front that is spaced from and pivotally coupled to a rear. The front of the chair back is rotatable towards and away from the back of a user. A back support pushing arm within the back of the chair is pivotally coupled to the rear of the chair back and rotatable between a first position at which to apply a pushing force against the front of the chair back when the chair rocks forwards and a second position when the user leans back, the chair rocks backwards, and the front of the chair rotates towards the rear. A force generating strap within the chair back contacts and urges the back support pushing arm to rotate to the first position lying against the front of the chair back.

A modular chair including a support portion to allow the support of a user on it and including a frame and a fabric. The fabric defines a surface suitable to support the user and a perimetral area defined by the edges of the surface. The frame defines, in use, a closed profile and is suitable to support the fabric in tension along at least part of the perimetral area, and comprises at least two parts separate and reciprocally loosely connected by two hinges arranged respectively at the ends of said parts to define a configuration of use in which the parts form the frame and a configuration of rest in which the parts are folded together. The hinges define two respective axes of rotation mutually aligned. The frame tensions the fabric only when the parts are in the configuration of use.

A modular chair including a support portion to allow the support of a user on it and including a frame and a fabric. The fabric defines a surface suitable to support the user and a perimetral area defined by the edges of the surface. The frame defines, in use, a closed profile and is suitable to support the fabric in tension along at least part of the perimetral area, and comprises at least two parts separate and reciprocally loosely connected by two hinges arranged respectively at the ends of said parts to define a configuration of use in which the parts form the frame and a configuration of rest in which the parts are folded together. The hinges define two respective axes of rotation mutually aligned. The frame tensions the fabric only when the parts are in the configuration of use.

Systems, devices, and methods are provided for a rotating chair, including an upper chair section, a lower chair section and a turntable mounted between the upper chair section and the lower chair section that allows the upper chair section to rotate with respect to the lower chair section.

A portable chair may include a first front leg, a first back leg pivotally connected to the first front leg, a second front leg, a second back leg pivotally connected to the second front leg, a seat support assembly and a seat assembly. The seat support assembly is connected to the first front leg and the first back leg. The seat assembly may releasably connect to the seat support assembly. The seat support assembly may include a front seat support pivotally connected to the first front leg, a rear seat support pivotally connected to the first back leg, and a strut extending between the first front seat support and the first rear seat support. The seat assembly may include a pair of seat side rails and a seat fabric extending between the pair of seat side rails. The portable chair may have a use configuration and a folded configuration.

A portable chair may include a first front leg, a first back leg pivotally connected to the first front leg, a second front leg, a second back leg pivotally connected to the second front leg, a seat support assembly and a seat assembly. The seat support assembly is connected to the first front leg and the first back leg. The seat assembly may releasably connect to the seat support assembly. The seat support assembly may include a front seat support pivotally connected to the first front leg, a rear seat support pivotally connected to the first back leg, and a strut extending between the first front seat support and the first rear seat support. The seat assembly may include a pair of seat side rails and a seat fabric extending between the pair of seat side rails. The portable chair may have a use configuration and a folded configuration.

A telescopic folding chair includes an upper mounting seat, a lower mounting seat and a cushion. The upper mounting seat is hinged with a plurality of support legs, and the lower mounting seat is hinged with a plurality of telescopic arm tube sets. The cushion is mounted on the telescopic arm tube sets. The lower mounting seat is provided with a plurality of inclined guide holes through which the support legs run. The upper mounting seat is rotatably provided with a rotary limiting mechanism, and the lower mounting seat is provided with an avoidance hole. A bottom of the rotary limiting mechanism is provided with a limiting head, and a bottom wall of the lower mounting seat is provided with a limiting portion corresponding to a periphery of the avoidance hole. The rotary limiting mechanism rotates to control the limiting head to be movably limited by the limiting portion.

A telescopic folding chair includes an upper mounting seat, a lower mounting seat and a cushion. The upper mounting seat is hinged with a plurality of support legs, and the lower mounting seat is hinged with a plurality of telescopic arm tube sets. The cushion is mounted on the telescopic arm tube sets. The lower mounting seat is provided with a plurality of inclined guide holes through which the support legs run. The upper mounting seat is rotatably provided with a rotary limiting mechanism, and the lower mounting seat is provided with an avoidance hole. A bottom of the rotary limiting mechanism is provided with a limiting head, and a bottom wall of the lower mounting seat is provided with a limiting portion corresponding to a periphery of the avoidance hole. The rotary limiting mechanism rotates to control the limiting head to be movably limited by the limiting portion.