| 摘要 |
A latch housing defines an axial passage accessible at opposite ends thereof. Latch elements are radially displaced about the axis of the axial passage. A solenoid is mounted to an end of the latch housing and a post is inserted axially into the opposite end of the axial passage. The latch elements are biased to constrict around and preclude withdrawal of the post from the axial passage. An armature of the solenoid extends into the axial passage and a disengagement plate is attached to that end of the armature. As the post is inserted into the axial passage, a slot in the post mates with the disengagement plate, and the terminus of the slot contacts the disengagement plate causing the disengagement plate to translate along the axial passage with the post. The biased nature of the latch elements cause the latch elements to apply force to cam edges of the disengagement plate such that the disengagement plate translates away from the latch elements and post toward a coil of the solenoid so that the solenoid becomes fully armed. The solenoid provides motive force for driving the disengagement plate between the latch elements to cause the latch elements to move away from and thereby release their constricting grip upon the post. More specifically, when the solenoid is actuated the disengagement plate passes into the slot defined in the post and the disengagement plate contacts and drives the latch elements radially away from the post to effect an unlatching.
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