| 摘要 |
<p>A lighting device has a line grill formed by two paralleled tubes (2) bridged by spaced slate (3) and detachably supported at each end by a respective end plate (4). The end plates (4) are secured by bolts or screws in an open frame (1) which borders the grill. The end of each tube (2) contains a coil spring, secured at its inner end by crimping (22) of the tube (2) and a piston rod (9') whose outer end engages in a hole (46) in the end plate (4), penetration of the rod (9') into the hole (46) limited by a flange (94). The hole (46) is one of a, for example linear, array of holes formed in each end region of each end plate (4). The position of the grill can therefore be adjusted by retracting the rods (9') from their respective holes (46) and reengaging them in other holes (46) of the array. The plates (4) also have mounting holes (44, 45) for ligting tubes.</p> |
