| 摘要 |
PROBLEM TO BE SOLVED: To fit the front cover to a housing by one operation. SOLUTION: To both side edges of the front cover 21, lock arms 22 are fitted rotatably which each have one end exposed to the front of the front cover 21 and the other hooked end projected to the back side, and to both flanks of the housing 13 fixed pins 23 are fitted. The housing 13 is covered with the front cover 21 and then the lock arms 22 abut against the fixed pins 23 and the lock arms 22 after rotating against the rotary deviation forces of spring members rotate and return, so that they are locked to the fixed pins 23. |
