| 摘要 |
PROBLEM TO BE SOLVED: To simplify a work for positioning two cases at an intermediate opening position. SOLUTION: The communication unit is provided with cases 72, 2 that are pivotally supported in a freely opening/closing way and positioned in a fully opening position and a fully closing position, and provided with a hinge 74 that are interposed between both the cases 72, 2 having two turnable lock members 74a, 74b respectively. A positioning projection 74a2 is provided to an outer circumferential face of the hinge 74, and a positioning recessed part 2a3 that is able to be fitted to the positioning projection 74a2 is provided to a pivoltally and turnably supporting section 2a. The positioning recessed part 2a3 and the positioning projection 74a2 are arranged to the position at which both the cases 72, 2 are placed to the medium opening position between the fully open position and the fully closed position in fitting state.
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