Patent ID: 7441815

Claim:
A door lock device comprising: a ratchet lever that is engaged with a ratchet that is in abutting engagement with a latch, and releases the abutting engagement; a lock lever that shifts between an unlock position where transmission of a door opening operation by an outside handle to the ratchet lever is enabled and a lock position where the transmission of the door opening operation by the outside handle to the ratchet lever is disabled; and an inside lock button connected to an inner wire of a wire cable that causes the lock lever to shift from the unlock position to the lock position with an operation of locking, and causes the lock lever to shift from the lock position to the unlock position with an operation of unlocking, wherein the lock lever is connected to the wire cable, and wherein when the inside lock button is operated for locking, the inner wire of the wire cable is drawn into an outer tube of the wire cable, and the connection between the lock lever and the wire cable is drawn toward the inside lock button so that the lock lever shifts from the unlock state to the lock state, and when the inside lock button is operated for unlocking, the inner wire of the wire cable is pushed out of the outer tube of the wire cable so that the connection between the lock lever and the wire cable is pushed away from the inside lock button so that the lock lever shifts from the lock state to the unlock state; further comprising a connect lever, a link lever, wherein the connect lever rotates with the lock lever, and wherein rotation of the connect lever causes the unlock state; and wherein the rotation of the connect lever causes rotation of the link lever to a position in the unlock state whereby the link lever is capable of rotating the ratchet lever.