Reinforcing and guiding bar for a flexible curtain in a vertical

Details Reinforcing and guiding bar for a flexible curtain in a vertical Reinforcing and guiding bar for a flexible curtain in a vertical

1990-03-02

1991-10-15

Purol, David M.

Flexible or portable closure, partition, or panel

Roll type

With guides or fabric edge holders

160264, A47G 500

Patent

active

050565796

ABSTRACT:
A reinforcing bar for stiffening and guiding a flexible curtain in a vertically raisable door is fixed horizontally to the curtain and each of its ends penetrates into a corresponding vertical guiding slideway (1). At each of its ends, the bar includes a zone of reduced mechanical strength to enable the bar to escape from the guideways (1) when it is subjected to a thrust of given force substantially perpendicularly to the curtain (2). The bar is constituted, for example, by tubular portion (3) having two protective end pieces (43) fitted to its respective ends, with the end pieces being designed to break at zones of weakness (433).

REFERENCES:
patent: 236126 (1880-12-01), Washburn
patent: 797652 (1905-08-01), Wilson et al.
patent: 972422 (1910-10-01), Whitmore
patent: 3292685 (1966-12-01), Clark
patent: 4397347 (1983-08-01), Brabant
patent: 4547014 (1985-10-01), Wicker
patent: 4665964 (1987-05-01), Zommers
patent: 4776379 (1988-10-01), Kraeutler

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