| 摘要 |
<p>1,262,290. Vehicle headlamps. JOSEPH LUCAS (INDUSTRIES) Ltd. 21 July, 1969 [9 Aug., 1968], No. 38066/68. Heading F4R. A retractable headlamp assembly comprises a support frame 11 adapted to be secured to the body of a road vehicle, a headlamp 14 mounted in a carrier 12 which is pivoted to the frame at 15 and has a portion 13 which forms part of the exterior surface of the body when the headlamp is retracted, and a latch bolt 22 which is adapted to retain the headlamp in either the aperture or the retracted position. The carrier 12 is urged by gravity towards the retracted position and is raised to the operative position by a vacuum unit 18 the piston-rod 17 of which is connected to a lever 16 coupled to the shaft 15 which also carries a further lever (19, Fig. 2, not shown) provided with a rubber buffer (21) adapted to bear against the lower surface of the headlamp 14. This arrangement permits the headlamp to be raised manually without moving the piston-rod 17. The latch bolt 22 is biased by a spring (23) into engagement with either of two hollow bushes (24), 25 in the wall of the carrier, and may be withdrawn by a solenoid 29 or by a manually operable lever 31. The headlamp may be controlled by a switch of the type described in Specification 1,043,937 which has electrical contacts to control the energization of the lamp filament and of the solenoid and a valve to control the vacuum unit. Limit switches 26, (27) are provided on the frame 11 for operation by a stop (28) on the carrier 12.</p> |
