Power plug locking device having a control unit for moving a lock member between different positions
AssigneeKabushiki Kaisha Tokai Rika Denki Seisakusho
InventorsNaoto Kurumizawa, Toshiharu Katagiri
Life of this patent
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Abstract
When a power plug locking device moves a plate to a lock position or unlock position, the plate is rotated toward an operational end position with a power plug lock motor while the current of the motor is detected. When the plate comes into contact with a switching piece of a switching mechanism, the switching piece applies a load to the plate. When the current flowing through the motor becomes greater than or equal to a threshold, the supply of power to the power plug lock motor is stopped. Then, switching load of the switching mechanism 48 pushes and moves the disk to an operational end position (lock position or unlock position).
Claims7
A power plug locking device that prevents unauthorized removal of a power plug from an inlet, the power plug locking device comprising:
- a lock member arranged in the inlet, wherein the lock member blocks removal of the power plug when the power plug is connected to the inlet;
- a drive unit that moves the lock member;
- a control unit that controls the drive unit to move the lock member from an operational start position to an operational end position, wherein the control unit obtains positional information of the lock member;
- and
- a movable mechanism that mechanically moves the lock member from a usable position, which is a position before the operational end portion, to the operational end position, wherein
- the control unit controls the drive unit based on the positional information to move the lock member to the usable position,
- the control unit stops the drive unit when the lock member reaches the usable position, and
- the movable mechanism mechanically moves the lock member from the usable position to the operation end position.
Dependencies are inferred from the claim text.