ROTARY BLOCKING DEVICE

摘要

A lock including a housing having an opening for a locking bolt, a locking bolt movable between a locked position and an unlocked position, an actuator positioned within the housing, and a rotary blocking device that prevents the locking bolt from moving to the unlocked position is disclosed. The lock may optionally include a tamper resistant mechanism that is designed such that attempting to forcibly move the locking bolt from the locked position to the unlocked position while the actuator remains in the locked condition causes the locking bolt to engage the tamper resistant mechanism.

主权项

1. A lock comprising:
a housing defining a disk cavity with first and second opposing side walls including an opening for receiving a locking bolt, said first opposing side wall including a shelf thereon; a locking bolt operably coupled to a shaft received by said first and second opposing side walls, said locking bolt movable between a locked position and an unlocked position, said locking bolt having a tip portion contained within said disk cavity and a pin portion receiving aperture thereon; a locking bolt return spring including a central spring portion, a biasing portion and a pin portion, said central spring portion received by said shaft and said pin portion received by said pin portion receiving aperture and said biasing portion received by said shelf; a rotary actuator having a rotary output; a rotatable cam engagement means responsive to the rotary output and positioned within said disk cavity, said rotatable cam engagement means including an elongate flange extending radially outward from said cam engagement means, said flange rotatably energizable between a first blocking position in which the flange blocks the locking bolt tip portion and a second non-blocking position in which the flange does not block the tip portion of the locking bolt and allows the locking bolt to by pass the flange and retract into said housing.