LID LOCKING DEVICE

摘要

A lid locking device of the present invention is provided with a power transmission mechanism which includes a worm gear, a worm wheel, a pressurizing protrusion portion, a pressurized face and an interference avoiding space between a motor and a locking member. The power transmitting mechanism transmits backward-driving power which allows the locking member to move backward to an unlocked position from the motor to the locking member but does not transmit the power from the locking member to the motor and cuts off the power. That is, the backward driving power received by the locking member from an engagement protrusion piece of a lid on closing the lid is cut off by the power transmitting mechanism and not transmitted to the motor.

主权项

1. A lid locking device, comprising:
a housing which is arranged so as to be fixed on a vehicle; a locking member which is arranged in such a manner that it is assembled to the housing so as to be movable, urged to an origin position in its moving range and arranged so as to move backward, in a process of closing a lid of the vehicle, by being pressed by a locking engaging portion provided on the lid, then move forward to a locking position before the origin position, thereby locking the lid in a closed state; a drive source which is assembled to the housing and outputs power for allowing the locking member at the locking position to move backward to an unlocked position at which the lid is unlocked; a power transmitting mechanism which connects between the drive source and the locking member and transmits power from the drive source to the locking member when the locking member is moved backward to the unlocked position but does not transmit power from the locking member to the drive source and cuts off the power; a detection switch which is assembled to the housing and turned on or off depending on whether or not the locking member is positioned at the origin position; and a switch contact portion which is provided integrally on the locking member and comes into contact with the detection switch or releases the contact when the locking member moves to the origin position, thereby turning the the detection switch on or off.