Patent ID: 6371538
Filing Date: 2002-04-16
Classification: E05B,Y10S,Y10T

Abstract:
A vehicle door latch device comprising:a latch body adapted to be mounted on a vehicle door; a lock lever journaled on the latch body and displaceable, by an unlocking operation and a locking operation of an inside lock button of the door, between an unlocked position where it makes a door-opening operation of an outside open handle of the door effective and a locked position where it makes the door-opening operation of the outside open handle ineffective; and a block member displaceable between an unblocking position where it makes the unlocking operation of the inside lock button effective and a blocking position where it makes the unlocking operation of the inside lock button ineffective; said block member being capable of mechanical engagement with the lock lever to restrict a displacement of the lock lever from the locked position to the unlocked position in response to the unlocking operation of the inside lock button; wherein said device further comprises a connecting lever connected to the inside lock button with no substantial lost-motion and a connecting spring for relevantly connecting the connecting lever and the lock lever; wherein said connecting lever is substantially displaceable integrally with the lock lever by an action of the connecting spring when the block member is located at the unblocking position; wherein said connecting lever is displaced with respect to the lock lever against a spring force of the connecting spring when the unlocking operation of the inside lock button is carried out at a state where the block member is located at the blocking position.