E - Fixed Constructions – 05 – B
Patent
E - Fixed Constructions
05
B
342/40
E05B 47/00 (2006.01) E05B 65/36 (2006.01)
Patent
CA 1222042
CONTROL CIRCUIT FOR LOCKING MECHANISM OF SLIDING VEHICLE DOOR Abstract of the Disclosure A power door lock control for vehicles having slid- ing doors which are secured by locking bolts, includes a manually operable member which may be the conventional lock-unlock button. The door contains an electrically powered mechanism which operates a locking bolt. Connect- ed to the mechanism is a contact which is cooperable with a second contact on the vehicle body when the door is closed. A pulse circuit in the vehicle is actuated when the driver presses the lock button toward its "lock- ing" position, and supplies spaced pulses to the body contact. The pulses continue at a very low duty cycle, so as to draw minimal current, until the door is closed at which time the door contact and body contact engage one another, thereby completing a circuit from the pulse generator to the powered mechanism. This in turn operates the locking bolt to secure the door. At the same time, a current sensing circuit in the vehicle detects that a pulse of current has flowed through the powered mechanism. Once the pulse of current is sensed, the pulsing circuit is completely shut off, drawing virtually no additional power. The advantage of the present invention over the devices of the prior art is that with this device the driver, in leaving, can operate the "lock" button, there- after close the driver compartment door (automatically locking the same), and at any later time merely close the sliding door. This latter will then be automatically locked by the pulse generator, which will then be dis- abled, all automatically and with minimal use of power.
450154
Casco Products Corporation
Smart & Biggar
LandOfFree
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