A chair is disclosed herein of the kind that is shipped disassembled in a compact shipping package to be assembled by the end user without the use of tools. The chair has a pair of user actuated height and tilt control paddles by which the elevation of the seat and the tilt of the seat and back of the chair can be adjusted relative to the base which holds the seat above the ground. In one embodiment, the height and tilt control paddles are removably attached to the seat at respective paddle receivers connected to the bottom of the seat. In another embodiment, the height and tilt control paddles are removably received by respective paddle cavities formed in the arms of the chair. By removing the paddles from their paddle receivers or paddle cavities, the parts of the disassembled chair may be more efficiently packaged for shipment.

A chair is disclosed herein of the kind that is shipped disassembled in a compact shipping package to be assembled by the end user without the use of tools. The chair has a pair of user actuated height and tilt control paddles by which the elevation of the seat and the tilt of the seat and back of the chair can be adjusted relative to the base which holds the seat above the ground. In one embodiment, the height and tilt control paddles are removably attached to the seat at respective paddle receivers connected to the bottom of the seat. In another embodiment, the height and tilt control paddles are removably received by respective paddle cavities formed in the arms of the chair. By removing the paddles from their paddle receivers or paddle cavities, the parts of the disassembled chair may be more efficiently packaged for shipment.

An ergonomics system for a workplace system with adjustable furniture comprises a data processing device and an image recording device connected to the data processing device and arranged and designed such that image data representing an image of the workplace system user is transmitted to the data processing device. The data processing device is connected to an ergonomics database and is designed to evaluate the image data in order to determine the user's position data and posture data, to compare the determined position data and posture data to reference data in the ergonomics database in order to determine a measurement of a correctness of a corresponding position and posture of the user on the basis of the comparison, and to signal the determined measurement of correctness to the user.

An ergonomics system for a workplace system with adjustable furniture comprises a data processing device and an image recording device connected to the data processing device and arranged and designed such that image data representing an image of the workplace system user is transmitted to the data processing device. The data processing device is connected to an ergonomics database and is designed to evaluate the image data in order to determine the user's position data and posture data, to compare the determined position data and posture data to reference data in the ergonomics database in order to determine a measurement of a correctness of a corresponding position and posture of the user on the basis of the comparison, and to signal the determined measurement of correctness to the user.

A chair has a seat, a backrest, a lift structure, a back supporting structure, and a waist supporting structure. The backrest is deposited behind the seat. The lift structure is deposited on the backrest. The back supporting structure has a bending element and multiple supporting strips. The bending element is connected with the backrest and the lift structure, and is elastic and bendable to deform. The supporting strips are deposited on the bending element at spaced intervals from a top to a bottom of the bending element. The waist supporting structure is deposited in front of the back supporting structure. The waist supporting structure has two pivoting bases and a supporting plate. The pivoting bases are deposited on the seat. The supporting plate is pivoted between the two pivoting bases, abuts the back supporting structure, and selectively abuts the backrest.

A chair has a seat, a backrest, a lift structure, a back supporting structure, and a waist supporting structure. The backrest is deposited behind the seat. The lift structure is deposited on the backrest. The back supporting structure has a bending element and multiple supporting strips. The bending element is connected with the backrest and the lift structure, and is elastic and bendable to deform. The supporting strips are deposited on the bending element at spaced intervals from a top to a bottom of the bending element. The waist supporting structure is deposited in front of the back supporting structure. The waist supporting structure has two pivoting bases and a supporting plate. The pivoting bases are deposited on the seat. The supporting plate is pivoted between the two pivoting bases, abuts the back supporting structure, and selectively abuts the backrest.

An access system includes a laterally extending frame, a carriage in operative connection with the laterally extending frame and including a drive to move the carriage laterally on the frame, a seat support attached to the carriage including a seat assembly interface and a lift to raise and lower the seat assembly interface within a range of positions, a seat assembly attached to the seat assembly interface, a controller in operative connection with the drive of the carriage and the lift of the seat support via which the position of the seat support is controllable, and a controller interface in operative connection with the controller.

An access system includes a laterally extending frame, a carriage in operative connection with the laterally extending frame and including a drive to move the carriage laterally on the frame, a seat support attached to the carriage including a seat assembly interface and a lift to raise and lower the seat assembly interface within a range of positions, a seat assembly attached to the seat assembly interface, a controller in operative connection with the drive of the carriage and the lift of the seat support via which the position of the seat support is controllable, and a controller interface in operative connection with the controller.

A mobility assistance apparatus includes first and second frames positioned on left and right sides of a user; a fixed arm coupled to the first and second frames; and a seat coupled to the frames with an angled surface mostly contacting the ischial tuberosities and adapted to transfer at least a portion of the user's body weight from the legs and to transfer weight through the user's hip or pelvis to the first and second frame.

A mobility assistance apparatus includes first and second frames positioned on left and right sides of a user; a fixed arm coupled to the first and second frames; and a seat coupled to the frames with an angled surface mostly contacting the ischial tuberosities and adapted to transfer at least a portion of the user's body weight from the legs and to transfer weight through the user's hip or pelvis to the first and second frame.