| 摘要 |
PROBLEM TO BE SOLVED: To activate a lock mechanism for preventing a protrusion of a work set due to access from above.SOLUTION: A cassette (2) comprises: a side plate having an insertion groove (20b) for inserting a work set (W) formed therein; and a lock mechanism (26) for preventing a protrusion of the work set inserted into the insertion groove. The lock mechanism has a lock bar (27) having a second insertion groove (27b) allowing the insertion groove to communicate therewith formed at the same interval as the interval of the insertion groove therein, and a spring mechanism (28) for energizing the lock bar upward and protruding the lock bar from an upper surface, which makes the second insertion groove and the insertion groove uneven in a vertical direction by pushing the lock bar downward so as to block the insertion groove.SELECTED DRAWING: Figure 2 |
