| 摘要 |
When a speaker is detached repeatedly by sliding a connection pin over a narrow portion formed in a through hole in a cabinet, the contact portions of the narrow portion of the through hole and the connection pin wear away. Cushion holes 28g and 28h are formed in the vicinity of the narrow portion 28f of the through hole 28 to deform areas sandwiched between the narrow portion 28f and the cushion holes 28g and 28h widely, thereby making it possible to increase the width of the narrow portion 28f by elastic deformation. Therefore, since the narrow portion 28f is elastically deformed at the time of sliding, the contact portions do not wear away and return to their original forms after sliding so that the connection pin is mated again. Accordingly, the connection pin does not slide accidentally thereafter.
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