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(11) | EP 1 980 697 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Fall prevention device for sectional doors |
(57) The invention concerns a fall prevention safety device for a sectional door moving
along lateral guide tracks associated with fixed supporting doorposts and controlled
by means of normally taut draw cables. Along each supporting doorpost knurling or
toothing is provided (21), and at the bottom part, on the sides of the door, is assembled
a stop element (22) connected to a respective draw cable (16) and having at least
one toothed zone the toothing of which faces towards said knurling or toothing along
an adjacent supporting doorpost. The stop element moves between an inoperative position,
in which its toothed area is kept at a distance from said knurling or toothing when
the cable connected to it is integral and taut, and a block operating position, in
which its toothed area made to approach and automatically engage with the knurling
or toothing when the cable it is connected to snaps, is slack or is disconnected.
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