Abstract: A chair having an adjustable seat (1) and back (3) has a connection assembly for connecting the back to an adjustment mechanism (4) of the chair. The assembly has a rigid L-shaped connection bar (7) one end (7b) of which is insertable into a receiving structure (4a) of the mechanism (4). A catch mechanism is provided to hold this end (7b) in a locking position in the receiving structure (4a). The catch mechanism can be released e.g. with a screwdriver inserted through a side aperture (26) to allow ready removal of the back (3). The end (7b) may have a projection (8) which engages a hole (15) and a spring loaded wedge member (25) may be provided to hold the end (7a) between upper and lower plates (17, 12). This wedge member (25) may be slidable back in a slot (20) against the spring loading for release of the catch mechanism.

Abstract: A chair having an adjustable seat (1) and back (3) has a connection assembly for connecting the back to an adjustment mechanism (4) of the chair. The assembly has a rigid L-shaped connection bar (7) one end (7b) of which is insertable into a receiving structure (4a) of the mechanism (4). A catch mechanism is provided to hold this end (7b) in a locking position in the receiving structure (4a). The catch mechanism can be released e.g. with a screwdriver inserted through a side aperture (26) to allow ready removal of the back (3). The end (7b) may have a projection (8) which engages a hole (15) and a spring loaded wedge member (25) may be provided to hold the end (7a) between upper and lower plates (17, 12). This wedge member (25) may be slidable back in a slot (20) against the spring loading for release of the catch mechanism.