| 摘要 |
<p>PURPOSE:To simplify the wiring work with the number of parts curtailed and manhours for assembly work reduced, by engaging the engagement lugs of an external plate with the engagement section of a simplified fireproof cover. CONSTITUTION:A boss section 4a of wiring accessories 4 is inserted into an inserting hole 13 of a simplified fireproof cover 2 to cover the section except the boss section 4a of a fitting hole 5 and with a set screw 18 inserted through a through hole 17 the simplified fireproof cover 2 is screwed to a wiring accessory installation frame 1. An engagement projection piece 15 provided on the inner surface of an external plate 3 is positioned to the punched hole 1 of the simplified fireproof cover 2 and the external plate 3 is pressed to the simplified fireproof cover 2 side. A projected section 20b of an anchor projection 20 overrides the bent section 15a and the engagement projection piece 15 and the anchor projection 20 are mutually engaged with and the external plate 3 can be attached to the simplified fireproof cover 2. The number of parts is thereby curtailed by integrally forming the metal frame and the synthetic resin plate, while the manhours for assembly work can be reduced.</p> |
