Goods-handling door comprising a wind-resistant flexible curtain

Details Goods-handling door comprising a wind-resistant flexible curtain Goods-handling door comprising a wind-resistant flexible curtain

1993-10-01

1995-12-26

Johnson, Blair M.

Flexible or portable closure, partition, or panel

Pleating type

With slide guides

160264, 160266, E06B 906

Patent

active

054779022

ABSTRACT:
A fast-opening and fast-closing goods-handling door for allowing vehicles to pass therethrough includes a foldable or rollable flexible curtain, the edges of which are guided in respective slideways, and which are retained therein by means of retaining carriages guided by rails received in the slideways. According to one aspect of the goods-handling door, the carriages are able to leave the rails. The goods-handling door is further characterized in that it includes a coupling device for coupling the curtain to the carriages, and at least one stress-distribution device for distributing the stresses exerted on the edges of the curtain by the carriages when the door is subjected to detrimental forces.

REFERENCES:
patent: 516762 (1894-03-01), Burrowes
patent: 1033224 (1912-07-01), Andlauer
patent: 2839135 (1958-06-01), Anderson
patent: 4934437 (1990-06-01), Kraeutler
patent: 4938273 (1990-07-01), Dabbelman et al.

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