Anti-jamming safety device for a curtain-type door having reinfo

Details Anti-jamming safety device for a curtain-type door having reinfo Anti-jamming safety device for a curtain-type door having reinfo

1992-02-13

1993-05-11

Purol, David M.

Flexible or portable closure, partition, or panel

Pleating type

Lazy-tong links pivot about axes parallel to panel

160264, E06B 394

Patent

active

052092810

ABSTRACT:
A vertically-raisable door for industrial use includes a curtain 4 reinforced by bars 5 whose ends are guided in slideways, each comprising a web 7 and two guide walls 8, 9. The width of each slideway is reduced at its bottom end by a filler component 20 received inside the slideway against the web and a guide wall. The filler component has a clearance surface 23 facing the bay, and a ramp comprising an upper guide surface 21 and a placement surface 24 facing the opposite guide wall. The clearance surface slopes from the bottom towards the web of the slideway at an angle lying in the range about 1.degree. to about 10.degree., and preferably in the range 2.degree. to 5.degree., such that the horizontal distance between the clearance surfaces of the two facing slideways increases going upwards.

REFERENCES:
patent: 4397347 (1983-08-01), Brahant

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