An apparatus for locking operative position of each furniture on furniture raising/lowering type floor equipment

摘要

An apparatus for locking an operative position of each furniture such as a chair or the like on a furniture raising/lowering floor equipment wherein the furniture is mounted on a raising/lowering unit (4) vertically displaceably arranged in the furniture accommodating chamber and the operative position of the furniture is reached when the raising/lowering unit (4) is fully raised up and the furniture is then tilted is disclosed. The apparatus includes as essential components a triangular link plate (8) turnably supported on a rotational shaft (7) transversely projecting from the raising/lowering unit (4), a support shaft (7) for the furniture turnably arranged on the rotational shaft (7), an opposing pair of substantially inverted U-shaped turnable engagement pieces (10), and a pair of joint links (14) bridged between the link plate (8) and the engagement pieces (10). The raising/lowering unit (4) is provided with engagement projections (6) on the opposite sides at the upper end thereof and a stopper pin (16) at the intermediate position at the lower end thereof. The engagement projections (6) come in contact with the lower surfaces of the frames (2) of the furniture accommodating chamber and the stopper (15) on the link plate (8) collides with the stopper pin (16) on the raising/lowering unit (4), when the raising/lowering unit (4) is fully raised up in the furniture accommodating chamber.