| 摘要 |
PROBLEM TO BE SOLVED: To provide a removable structure such as a weight unit or the like wherein a safety of the removal is increased. SOLUTION: The removable structure comprises: a detachable apparatus unit by slidable support of a shelf; and a lock mechanism which comprises a lock arm engaging with the shelf with respect to this apparatus unit, for engaging this lock arm with the shelf to restrict the apparatus unit in a predetermined lead-out range, to preclude the apparatus unit from detaching from the shelf. Further, a locked state of the lock mechanism is released by an operation of the separate lock arm from a lead-out operation of the apparatus unit. COPYRIGHT: (C)2006,JPO&NCIPI |
