| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve operability by providing a mechanism wherein when a key cylinder on the single bay side is switched to the unlock side, the second motor rotates, the second latch is unlocked and when the first switch is operated, the first motor rotates and makes the first latch switch to the door side striker and unlocked. SOLUTION: When a key cylinder 72 is operated to the unlock side u1, the second switch 72 sends an unlock signal to a control section, rotates a subsidiary motor 45 and drives a worm gear mechanism 46. A wheel 46b rotates, the first lever 48 rotates a subsidiary latch 52 and unlocks the subsidiary latch 52 from a main latch 44. The control section stops the subsidiary motor 45, the first subsidiary lever 48 turns on a subsidiary responsive switch 53 and turns on a normally-open contact. As a result, a main motor 31 drives a gear mechanism 32, rotates the second main lever 34 and the main latch 44, and removes the main latch 44 from the striker 21, thereby making it possible to make a door lock a two-stage operation type.</p> |
