Patent ID: 8851533

Claim:
A vehicle door locking device, comprising: a base unit adapted to be installed in a vehicle door and provided with a latch mechanism for retaining the vehicle door in a closed state relative to a vehicle body; a housing unit provided with an actuating mechanism for actuating the latch mechanism; a metal sub-base plate provided in the base unit for assembling the base unit to the housing unit; a child-proof lever provided in the housing unit, the child-proof lever assembled to the housing unit oscillatably on an axis extending in the vehicle width direction when the housing unit is installed in the vehicle door through the base unit, the child-proof lever being manually operable and having an operation knob which extends toward the indoor side in the vehicle width direction; a receiving portion provided in the metal sub-base plate, the receiving portion abutted with a back part of the child-proof lever at a base part of the operation knob so as to restrain a lean in the vehicle width direction of the operation knob; a latch provided in the latch mechanism and configured to be engageable with a striker attached to the vehicle body; and a metal base plate provided in the base unit, the metal base plate supporting the latch along with the metal sub-base plate; wherein the receiving portion comprising a part of the metal sub-base plate bent toward a rotation axis direction of the latch.