Reinforcing and guiding bar for a flexible curtain in a vertically raisable door
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United States of America Patent
Stats
-
Oct 15, 1991
Issued Date -
N/A
app pub date -
Mar 2, 1990
filing date -
Dec 2, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
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).
First Claim
Family
International Classification(s)
Cited Art Landscape
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