| 摘要 |
PROBLEM TO BE SOLVED: To facilitate insertion work of a jig into a jig insertion hole. SOLUTION: The portion which corresponds to a bending space 21B out of a front edge portion of a jig insertion hole 52 in the front wall 12 of a housing 10 is a separate body from the housing 10 and constructed of a front edge structure 40 capable of displacement in widening direction of the jig insertion hole 52 against the housing 10. When the jig J is inserted, the front edge structure 40 is displaced so as to widen the jig insertion hole 52, thereby insertion work of the jig J becomes simple. Then, when insertion of the jig J is not necessary, if the front edge structure 40 is displaced in the direction of narrowing the jig insertion hole 52, entering of foreign matters from the jig insertion hole 52 can be prevented. COPYRIGHT: (C)2006,JPO&NCIPI
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