Patent ID: 7293806

Claim:
A one-motion door opening mechanism for a vehicle door latch device comprising: a ratchet lever for opening a vehicle door when rotated; an open lever being displaced by a door opening rotation of an outside open handle of the door; a lock lever displaceable between an unlocked position in which a displacement of the open lever is transmitted to the ratchet lever so as to rotate the ratchet lever and an locked position in which the displacement of the open lever is not transmitted to the ratchet lever; a sub-lever being rotated by a door opening rotation of an inside open handle of the door; and a selector pin displaceable between an effective position and a ineffective position; wherein said ratchet lever is constituted so as to be able to return the lock lever located in the locked position to the unlocked position when rotated; wherein said selector pin, when located in the effective position, rotates the ratchet lever by a rotation of the sub-lever so that both of a returning of the lock lever to the unlocked position from the locked position and an opening of the vehicle door are made possible; wherein when said selector pin is switched to the ineffective position, the selector pin transmits the rotation of the sub-lever to the ratchet lever only through the open lever.