Damped Closing Mechanism for automatic Shutting Pull Door
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United States of America Patent
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Issued Date -
Feb 11, 2010
app pub date -
Aug 7, 2008
filing date -
Aug 7, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In a damped closing mechanism for automatic shutting pull door, a door closing mechanism includes a screw wheel to store restoring force, a change over device and a brake gear to produce a damping effect is integrally combined and equipped on the frame of a moving door panel. The brake gear is to alleviate the actuating force and moving speed of the door panel provided by the screw wheel. The change over device is capable of changing the damping effect of the brake gear to generate nearby the closing position of the door so as to alleviate colliding speed and impulse of the moving door panel with the door post when shutting without affecting the pulling of the door panel before closing.
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