Door opening/closing device

Details Door opening/closing device Door opening/closing device

2006-03-08

2011-10-18

Strimbu, Gregory J. (Department: 3634)

Movable or removable closures

With operator for movably mounted closure

Operating lever or link and closure swing about parallel axes

C049S339000, C049S341000

Reexamination Certificate

active

08037639

ABSTRACT:
In a door opening/closing device having a motor base and a sensor case, a rotation sensor is provided. The rotation sensor includes a magnetic member provided adjacent an end of a rotation shaft and a detecting element that is arranged so as to detect a magnetic flux that is generated from the magnetic member in a direction crossing a magnetic flux that is generated from an electromagnetic clutch arranged around the rotation shaft. The motor base is attached to the sensor case such that the end of the rotation shaft extends outside of the motor base and the rotation sensor is arranged adjacent the end of the rotation shaft.

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Magnetoresistance, http://en.wikipedia.org/wiki/Magnetoresistance.
Magnetoresistance, http://en.wikipedia.org/wiki/Magnetoresistance, Jul. 2009.

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