Patent ID: 6113162
Filing Date: 2000-09-05
Classification: E05B,H01H,Y10S,Y10T

Abstract:
In a door lock device including a case, a latch plate pivotally connected through a first shaft to said case for latching and unlatching a striker, and a lock pivotally connected through a second shaft to said case for locking and unlocking said latch plate, said latch plate being pivotable between a latch position to latch said striker and an unlatch position to release said striker, and said lock plate being pivotable between a lock position to lock said latch plate in the latch position and an unlock position to unlock said latch plate, a door open/close detector comprising:a switch connected to said case, said switch including a given surface and a detecting pin, said detecting pin being axially movable to cause a head thereof to be retractable into and protrusible from said given surface, said detecting pin turning said switch ON and OFF in response to the axial movement thereof; andan actuating lever engaged with one of said latch and lock plates to pivot therewith as a single unit, said actuating lever including a pin actuating portion slideable on the given surface to actuate the head of said detecting pin when said one of said latch and lock plates is pivoted about the corresponding shaft, andwherein said actuating lever is provided with resilient means for producing a biasing force that maintains a constant pressing between said given surface of said switch and said pin actuating portion of said actuating lever.