Powered rolling shutter equipped with automatic stopping means
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United States of America Patent
Stats
-
Nov 9, 2004
Grant Date -
Jan 2, 2003
app pub date -
Aug 19, 2002
filing date -
Feb 21, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention concerns a powered rolling shutter whereof the stator of the motor is connected to a fixed support via elastic means (R1, R2) for stopping the shutter in high and low abutment when the resisting torque exceeds a selected value, consisting of two springs (R1, R2) compressed by the stator rotation. The travel distance (12) before on of the springs (R2) is compressed is greater than the travel distance (11) before the other spring (R1) is compressed. The compression is ensured by a mobile element (12) also actuating a switch (18). The travels (c1, c2) required for activating the switch can be inverted. The motor can be mounted on the left or on the right with a differentiated resisting torque for stopping in high abutment and low abutment.
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International Classification(s)
Cited Art Landscape
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