| 摘要 |
Within the hollow cylinder 1 are located an internal pulley 5 locked in rotation with this cylinder 1 and with the shaft 7 of a motor 8 which is included in a fixed sleeve 13 containing two microswitches 15A, 15B and two threaded push rods 16A, 16B, engaged in nuts 19A, 19B immobilised in the sleeve 13, these push-rods each ending in a toothed pinion 21A, 21B which engages with the internal teeth 10 of a socket 9 locked in rotation with the hollow cylinder 1, such that one or other of the push-rods operates a microswitch at the end-of-travel of the sun screen. <IMAGE>
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