| 摘要 |
The seal assembly which may be provided along the top, bottom or side edges of a wall panel (10), comprises an outwardly facing channel member (14) mounted along the edge of the panel in a fixed position, with a spring-loaded, shiftable seal member (22) arranged in the channel (14) and held in a retracted, inoperative position by a releasable latch (50). …<??>Actuator means comprises cables (42, 42 min ) the outer ends of which are fixed to handles (44, 44 min ) in the edges of the panel (10) and the other ends of which are connected on one diameter (40) of a dual diameter pulley (30), a further cable (36), connected at one end to the seal member (22), being secured to the other diameter (35) of the pulley (30). From its retracted position the seal member (22) is initially shifted inwardly of the channel (14) by the actuator means to release the latch means (50) so that spring assemblies (27, 27 min ) urge the seal assembly to shift outwardly of the channel to its extended, self-levelling sealed position. Accumulator springs (45, 45 min ) with loops of cable (S, S min ) are provided in the cables (43, 43 min ) to control any slack in those cables. |
