Draw bar and brake arrangement for a draw bar
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United States of America Patent
Stats
-
Feb 28, 2023
Grant Date -
Dec 31, 2020
app pub date -
Mar 15, 2019
filing date -
Mar 16, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A brake arrangement, for a retractable screen arrangement in which the a screen roller applies a retraction force to the screen and brake arrangement, includes a brake arrangement, for providing a braking force between the brake arrangement and a track which guides the brake arrangement, to resist retraction. The brake arrangement provides a brake member with a friction surface for contacting the bearing surface; a brake member support for supporting the brake member; and a forcing arrangement for forcing the friction surface against the bearing surface. The forcing arrangement includes a biasing arrangement for biasing the friction surface onto the bearing surface, and a force-increasing arrangement for increasing the force with which the friction surface engages the bearing surface. The force increasing arrangement converts a frictional force between the friction surface and the track into additional contact pressure force of the friction surface onto the guide track.
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