| 摘要 |
<p>1. Anti-chute safety device for the closure elements of building and vehicle closures, the closure elements being displaceable by rollers or the like in vertical or inclined or vertical and horizontal guide tracks by means of a cable (7) or the like in conjunction with idle roller (8), characterized in that the guide track for the rollers (3) or the like can be reduced in width by means of a shoe (12) which, in the state of rest, is under the influence of a restoring force (18), which is lockable by a locking means (19, 24) and is released from the locking means when the anti-chute safety device is triggered.</p> |
