Chair with pelvic support and horizontally adjustable seating surface

摘要

The work chair comprises a frame (14) having a seat plate (8) on which a cushion support (11) is provided with cushion pad (6). The cushion support is locked or displaced relative to the seat plate in horizontal or longitudinal direction (F). The cushion pad is comprised of a pelvic support (7) for a user (1). The pelvic support is connected to the seat plate of the frame. The material of the pelvic support is wood, metal and/or plastic.