Anti-theft mechanism for a vehicle door lock device

A relay mechanism engaged to a latch mechanism on a vehicle door of a vehicle body, comprising:

• a latch mechanism having a latch engaging with a striker of the vehicle body, an opening means for releasing the engagement of the latch and the striker, and a lock lever connected to a key cylinder of the vehicle door and changed between a locked position precluding operation of the opening means and an unlocked position permitting operation of the opening means;
• and
• a relay mechanism having a sill knob lever connected to a sill knob of the door and changeable between a locked position and an unlocked position, a sub locking lever connected to the lock lever through a wire or a rod, an anti-theft member provided between the sub locking lever and the sill knob lever and arranged to be changeable between an anti-theft cancelled position in which the anti-theft member interconnects the sub locking lever and the sill knob lever and an anti-theft position in which the anti-theft member disconnects the sub locking lever and the sill knob lever, wherein an unlock operation of the sill knob lever is not transmitted to the lock lever, an actuator for anti-theft operation for changing the anti-theft member between the anti-theft position and the anti-theft cancelled position;
• wherein said latch mechanism and said relay mechanism are formed separately and each is mounted to the vehicle door spaced apart from each other in different housings;
• wherein said latch mechanism is mounted to a rear end portion of the door and said relay mechanism is mounted at approximately a middle portion between a front and a rear of the vehicle door.

A relay mechanism engaged to a latch mechanism on a vehicle door of a vehicle body, comprising:

• a latch mechanism having a latch engaging with a striker of the vehicle body, an opening means for releasing the engagement of the latch and the striker, and a lock lever connected to a key cylinder of the vehicle door and changed between a locked position precluding operation of the opening means and an unlocked position permitting operation of the opening means;
• and
• a relay mechanism having a sill knob lever connected to a sill knob of the vehicle door, an anti-theft member provided between the lock lever and the sill knob lever and arranged to be changed between an anti-theft cancelled position in which the anti-theft member interconnects with the lock lever and the sill knob lever and an anti-theft position in which the anti-theft member disconnects the lock lever and the sill knob lever, wherein an unlock operation of the sill knob lever is not transmitted to the lock lever,
• an actuator for anti-theft operation for changing the anti-theft member between the anti-theft position and the anti-theft cancelled position;
• said sill knob lever having a guide surface which is engageable by the anti-theft member and moves the sill knob lever to return to the locked position from the unlocked position by abutting and slidably engaging with the anti-theft member when the anti-theft member is displaced from the anti-theft position to the anti-theft cancelled position;
• said relay mechanism is mounted at about middle position between front and rear of the vehicle door.

A relay mechanism engaged to a latch mechanism on a vehicle door of a vehicle body, comprising:

• a latch mechanism having a latch engaging with a striker of the vehicle body, an opening means for releasing the engagement of the latch and the striker, and a lock lever connected to a key cylinder of the vehicle door and changed between a locked position precluding operation of the opening means and an unlocked position permitting operation of the operating means;
• and
• a relay mechanism having a sill knob lever connected to a sill knob of the vehicle door, a sub locking lever connected to the lock lever through a wire or a rod, an anti-theft member provided between the sub locking lever and the sill knob lever and arranged to be changed between an anti-theft cancelled position in which the anti-theft member engages with the sub locking lever and the sill knob lever, wherein an anti-theft position in which the anti-theft member engages with the sub locking lever and the sill knob lever and an unlock operation of the sill knob lever is not transmitted to the lock lever,
• an actuator for anti-theft operation for changing the anti-theft member between the anti-theft position and the anti-theft cancelled position;
• wherein said latch mechanism and said relay mechanism are formed separately and mounted to the vehicle door independently spaced apart from each other;
• said sill knob lever having a guide surface which is engageable by the anti-theft member and moves the sill knob lever to return to the locked position from the unlocked position by abutting and slidably engaging with the anti-theft member when the anti-theft member is displaced from the anti-theft position to the anti-theft cancelled position;
• wherein said latch mechanism is mounted to a rear end portion of the vehicle door, and said relay mechanism is mounted within a space between a dressing panel of the vehicle door and a metallic inner panel to which the dressing panel is installed, so that the relay mechanism is located substantially at a middle position between front and rear of the vehicle door.

A relay mechanism engaged to a latch mechanism on a vehicle door of a vehicle body, comprising:

• a latch mechanism having a latch engaging with a striker of the vehicle body, an opening means for releasing the engagement of the latch and the striker, and a lock lever connected to a key cylinder of the vehicle door and changed between a locked position precluding operation of the opening means and an unlocked position permitting operation of the opening means;
• and
• a relay mechanism having a sill knob lever connected to a sill knob of the vehicle door and changeable between a locked position and an unlocked position, a sub locking lever connected to the lock lever through a wire or a rod, an anti-theft member provided between the sub locking lever and the sill knob lever and arranged to be changeable between an anti-theft cancelled position in which the anti-theft member interconnects the sub locking lever and the sill knob lever and an anti-theft position in which the anti-theft member disconnects the sub locking lever and the sill knob lever, wherein an unlock operation of the sill knob lever is not transmitted to the lock lever, an actuator for anti-theft operation for changing the anti-theft member between the anti-theft position and the anti-theft cancelled position;
• wherein said latch mechanism and said relay mechanism are formed separately and each is mounted to the vehicle door independently spaced apart from each other in different housings;
• wherein said sub locking lever and said sill knob lever are rotatably supported by the same shaft.