| 摘要 |
A coded card key (14) is insertable through a slot (15) to bring into alignment coded magnetic areas on the card with magnetic pins (28) of the lock to unlock a core (24) relative to a locking plate (21) and enable the core (24) to be driven downwardly by the card engaging its lower flange (26). The core (24) has a cam surface (31) urging to the left a spring leaf (33) and therewith a coupling spline (46) to engage it with a spindle spline (42) carried by a shaft interconnected with the door handle, so that rotation of the door handle will now effect release of the door locking mechanism. Insertion of the card (14) pushes toward the right a hook (53) retaining the core (24) in its lower position despite spring (29'), thus allowing the user to release card (14) and turn the door handle with the same hand. Withdrawal of the card (14) by the user allows return movement of hook (53), core (24) and coupling spline (46). Actuation through a spring (33) allows for self-alignment during coupling. |
