Abstract: A vehicle door lock apparatus includes a lever mechanism directly connected with a key cylinder provided at the outside door handle for locking and unlocking the vehicle door in response to rotation operation of the key cylinder. The lever mechanism is provided with a key rotor directly connected with the key cylinder, and a key lever directly connected with the key rotor. An input shaft of the lever mechanism formed by the key rotor is inclinable relative to an output shaft of the lever mechanism formed by the key lever, and this inclination is absorbed through the connection between the key rotor and the key lever.

Abstract: A door lock system for a vehicle includes a latch mechanism, a link mechanism and a housing. The latch mechanism is adapted to a vehicle door and latches the vehicle door to a vehicle body. The link mechanism includes an electric driving source and a plurality of lever members for selectively locking and unlocking the latch mechanism. The housing accommodates the latch mechanism and the link mechanism.

Abstract: A door lock system for a vehicle includes a) a latch mechanism which is adapted to a vehicle door and which holds the vehicle door to a vehicle body, b) an open link which is engagable and disengagable with the latch mechanism, c) a swing lever which is connected to the open link, d) an electric driving source having a gear member, and e) a rotary gear member which is arranged between the swing lever and the electric driving source so as to be meshed with the gear member of the electric driving source. The rotary gear member is directly and engagably connected to the swing lever.

Abstract: A door lock system for a vehicle includes a latch mechanism, an open link, an inside lever and a cancel lever. The latch mechanism is adapted to a vehicle door and latches the vehicle door to a vehicle body. The open link is engagable and disengagable with the latch mechanism. The inside lever is adapted to an inside handle of the vehicle door and is engagable with the open link. The cancel lever is connected to the open link and is arranged between the inside lever and the open link so as to be engagable with the inside lever when the open link is disengaged from the latch mechanism.