| 摘要 |
PROBLEM TO BE SOLVED: To provide a lock of double-lock having a movable member for measures against side pressure and rattling. SOLUTION: Two large and small locking pieces are disposed in a lock box at a predetermined interval in the vertical direction. The larger first locking piece is a retractable dead bolt by the drive force of a cotter in the lock box. The smaller second locking piece is a side pressure receiving piece projecting from the lock box through a projecting input secured to the inner end of the first locking piece. When the dead bolt is retreated into the lock box during the unlocking, the second locking piece is retracted into the lock box through the movable member pulled back by a biasing means disposed in the lock box. COPYRIGHT: (C)2008,JPO&INPIT
|
