Safety release mechanism for use with a linear motor turning a ball screw
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United States of America Patent
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-
N/A
Issued Date -
Mar 4, 2010
app pub date -
Aug 10, 2009
filing date -
Aug 26, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A safety release mechanism for use with a ball screw type linear motor, featuring a lock lever that can be manually engaged or disengaged. Engaging the lock lever rigidly fixes a telescoping arm, allowing the motor to retract or extend the arm into a cover tube. Disengaging the lock lever allows the telescoping arm to rotate freely in the cover tube. One embodiment of the safety release mechanism is used with a motorized door assist mechanism, however, the release mechanism has many applications beyond a door opener, and can be used in any application requiring a linear motor with a telescoping arm, where in order for the motor to extend or retract the arm, one end of the arm must be fixedly held in place.
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