| 摘要 |
PURPOSE:To attain a compact structure of the device by decreasing the number of members and improving the assembling workability. CONSTITUTION:A rotary nut 11 is fitted into a case main body 10, and a fixing bolt 17 is screwed into the nut 11. Then, a case cover 16 is fixed to the body 10 via the nut 11 and the bolt 17. At the same time, a rotational angle is kept at 90 deg. by a stopper when the bolt 17 is unfastened and the cover 16 is turned. Then the stopper holding state is canceled and the cover 16 is slided toward the body 10 in the direction rectangular to the rotary direction. Thus the cover 16 can be turned up to 180 deg.. |
