The Back Saver is uniquely designed to move independently, directly effecting the dynamic equilibrium in the user's lumbar disc, to prolong the user's comfort level by promoting continuous movement of their pelvis and lower spine, and to facilitate the user's center of gravity through constant movement. The device for a sitting user includes a base housing comprising an inside annular ledge, an outer flat base and electronic components configured for turning and lifting a sitting user. The device also includes a metal movement plate configured to be received into the inside annular ledge and turn therein via an assistive motor action on the metal movement plate. The device further includes a motor configured to turn and lift the sitting user in a sequence of turning and lifting actions determined by the sitting user.

The Back Saver is uniquely designed to move independently, directly effecting the dynamic equilibrium in the user's lumbar disc, to prolong the user's comfort level by promoting continuous movement of their pelvis and lower spine, and to facilitate the user's center of gravity through constant movement. The device for a sitting user includes a base housing comprising an inside annular ledge, an outer flat base and electronic components configured for turning and lifting a sitting user. The device also includes a metal movement plate configured to be received into the inside annular ledge and turn therein via an assistive motor action on the metal movement plate. The device further includes a motor configured to turn and lift the sitting user in a sequence of turning and lifting actions determined by the sitting user.

A rotating work surface system for a chair including a seat base having a top engaging surface, a seat support having top side and a bottom side and a rotating surface positioned in between the seat base and the seat support. The rotating surface includes a top side and a bottom side wherein the rotating surface is adapted to pivotally engage about an axis and a fixed position of the seat base and the seat support.

A folding swivel chair support frame, which includes a seat frame and a chair leg frame; and the seat frame includes a U-shaped first support rod, a second support rod, and a cushion rod that are hinged to each other, and a foldable connection is formed by a turntable and a shaft rod that is locked on the first support rod. The seat frame is inserted into the guide tube of the chair leg frame by means of the shaft rod to form a docking position with the chair leg frame, and the turntable on the seat frame abuts against the support plate of the chair leg frame to from a rotatable load-bearing support.

A folding swivel chair support frame, which includes a seat frame and a chair leg frame; and the seat frame includes a U-shaped first support rod, a second support rod, and a cushion rod that are hinged to each other, and a foldable connection is formed by a turntable and a shaft rod that is locked on the first support rod. The seat frame is inserted into the guide tube of the chair leg frame by means of the shaft rod to form a docking position with the chair leg frame, and the turntable on the seat frame abuts against the support plate of the chair leg frame to from a rotatable load-bearing support.

A folding swivel chair support frame, which includes a seat frame and a chair leg frame; and the seat frame includes a U-shaped first support rod, a second support rod, and a cushion rod that are hinged to each other, and a foldable connection is formed by a turntable and a shaft rod that is locked on the first support rod. The seat frame is inserted into the guide tube of the chair leg frame by means of the shaft rod to form a docking position with the chair leg frame, and the turntable on the seat frame abuts against the support plate of the chair leg frame to from a rotatable load-bearing support.

A folding swivel chair support frame, which includes a seat frame and a chair leg frame; and the seat frame includes a U-shaped first support rod, a second support rod, and a cushion rod that are hinged to each other, and a foldable connection is formed by a turntable and a shaft rod that is locked on the first support rod. The seat frame is inserted into the guide tube of the chair leg frame by means of the shaft rod to form a docking position with the chair leg frame, and the turntable on the seat frame abuts against the support plate of the chair leg frame to from a rotatable load-bearing support.

A multifunctional outdoor leisure rotary chair is disclosed in the present invention, which belongs to the technical field of chairs, and includes a rotary base and a supporting frame. After the supporting frame is taken out, each group of rotary bases can be stacked upwards in turn, thus reducing the size of a packaging box during packaging. During transportation, more groups can be stacked without affecting packaging and transportation, thus reducing the cost of packaging materials, reducing the transportation cost, and improving the transportation capacity of the device.

A multifunctional outdoor leisure rotary chair is disclosed in the present invention, which belongs to the technical field of chairs, and includes a rotary base and a supporting frame. After the supporting frame is taken out, each group of rotary bases can be stacked upwards in turn, thus reducing the size of a packaging box during packaging. During transportation, more groups can be stacked without affecting packaging and transportation, thus reducing the cost of packaging materials, reducing the transportation cost, and improving the transportation capacity of the device.

A modular armrest system for mounting to a seat having a seat bottom with a lower surface and opposed first and second lateral sides. The system includes an elongated base plate that extends below the lower surface of the seat bottom and having at least one aperture that receives at least one fastener adapted to connect the elongated base plate to the seat bottom, and having opposed first and second ends proximate the respective opposed lateral sides. A first armrest assembly has a first mounting bracket having a horizontal portion connected to the first end of the elongated base plate and an upward extending portion connected to a generally horizontal arm support, and a second armrest assembly has a second mounting bracket having a horizontal portion connected to the second end of the elongated base plate and an upward extending portion connected to a generally horizontal arm support.