| 摘要 |
A safety lock mechanism is provided that facilitates accurate and consistent alignment between a locking bolt and a locking receptacle prior to engaging the locking bolt. To this end, a safety lock configured to mount to a door frame is provided with an internally disposed hard stop that protects the electrical and mechanical components within the safety lock housing from door impact shock. An extended portion of the hard stop protrudes through the housing facing the direction of door travel. A corresponding receptacle assembly configured to mount to the door is fabricated to include a bolt receptacle hole as well as an open window that engages with the extended portion of the hard stop when the door is in the closed position. When the window in the receptacle is engaged with the extended portion of the hard stop, door movement is limited in five directions even when the locking bolt is not yet engaged. An optional magnet embedded in the hard stop can limit door movement in the sixth direction by magnetically latching to a striking plate mounted behind the window. Thus, the window and the hard stop pre-position the receptacle for proper alignment between the locking bolt and the locking bolt receptacle, ensuring that the locking bolt will properly engage with the receptacle when advanced.
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