| 摘要 |
PROBLEM TO BE SOLVED: To obtain an attaching structure of a cap, in which the attachment of the cap is simple but will not slip even if it is pulled, and reuse is possible, and moreover scratching on a case or generation of working error can be prevented. SOLUTION: A cap-mounting piece 43 is integrally provided into an L-shape on one end side on an inner face of a cap 41 composed of an elastic piece by the elastic piece, and this cap-mounting piece 43 is inserted into inside a case 31 via a cap-mounting hole 34 opened in the case 31, and in a state of being overlapped on the inner face of the case 31, the cap-mounting piece 43 is retained by the engagement of a projection 35 and a hole 44 on the inner face of the case 31.
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