| 摘要 |
PURPOSE:To improve the quality of external appearance by projecting an engagement projection engaging with a module engagement section of a buried wiring fitting frame fitted with a wiring module to a device main body. CONSTITUTION:A 3P plug type telephone set is connected freely by using a cover 3b pierced with a plug blade insertion hole 12 being a plug insertion hole for the 3P plug. Further, an engagement arm 13 is projected downward to the cover 3b, the engaging arm 13 is inserted to the engagement hole 14 of a body 3a and latched and engaged with the lower aperture ridge of an engaging hole 14 by using a latch claw 13a provided at the tip and the cover 3b is fitted to the body 3a. Further, an engagement projection 17 engaged with the module engagement section 16 of the buried wiring fitting frame 15 is formed to the side face of the cover 3b and the engagement projection 17 is engaged with the engagement section 16. Thus, the fitting to the fitting frame 15 is facilitated and the telephone set switching device with excellent external appearance is obtained.
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