Bimetal actuated lock

Details Bimetal actuated lock Bimetal actuated lock

E - Fixed Constructions

05

B

292/4

E05B 63/00 (2006.01) D06F 37/42 (2006.01) D06F 39/14 (2006.01) E05B 47/00 (2006.01)

Patent

CA 1278325

BIMETAL ACTUATED LOCK ABSTRACT OF THE DISCLOSURE A door locking device for an appliance such as a washing machine has a rotatable lock lever actuated to engage a latch carried by the door to hold the door in a closed position. The lock lever is actuated by a bime- tallic element which is adapted to be connected in series with the drive motor when the washing machine is in the spin condition so that the electric current passing through the drive motor passes through the bimetallic element and the resulting heating and deflection of the bimetallic element actuates the lock lever. The unit also carries an interlock switch actuated by the latch mechanism to prevent operation when the door is open. A shunt switch is provided to close electrical contacts when the bimetallic element and lock lever are deflected to the locked position to shunt current past the bime- tallic member to prevent further heating and to insure a substantially constant unlock time.

544235

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