Lock device for security grating enclosing machine tool, has projection that prevents movement of lock bolt on lock casing by receipt of movable unit in projection for preventing collision

摘要

The device (11) has a movable unit (17) with a lock bolt (18) on lock casing (16) that is movable relative to a fixed unit (12). A projection (24) prevents movement of the lock bolt on the lock casing by receipt of the movable unit in the projection for preventing collision. An elastic unit (13) is provided between fixed and movable units in travelling direction for absorbing collision. The lock casing is held using a mounting bracket (25), if movement of the lock bolt is blocked.