| 摘要 |
PROBLEM TO BE SOLVED: To lock or unlock a number of lock means easily and accurately in the operation of opening or closing the doors of hoisting polishers. SOLUTION: The lock mechanism for the doors of hoisting polishers is provided with a plurality of hook levers 25, a link bar 23 rockably supporting the hook levers on the other end part side thereof and an open/close lever 21 rockably linked to the link bar through a link pin 23c provided on the link bar on the one end part side thereof. A number of lock means L can be locked or unlocked only by operating one open/close lever 21 while one operation is enough even for the lock means that is located anywhere not within reach of hands and eyes thereby avoiding forgetting to lock or incomplete locking. COPYRIGHT: (C)2003,JPO
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