| 摘要 |
PURPOSE:To prevent the flexure at the midway of a covering metal fitting, and strengthen the fastening force of the covering metal fitting at large by making it in such structure that the midway part of the covering metal fitting to a metal fitting holder, and that the metal holder is locked to a cover. CONSTITUTION:A cover 4 and a case body 2 are fastened integrally by locking the fastening piece 10 of a covering metal fitting 9, which is mounted being annexed to the sidewall of the boss part 12 of the cover 4, to the case body 2. Especially, a metallic holder 24 is provided between the cover 4 and the covering metal fitting 9, and a locking piece 27, which projects to the side of the cover 4, and a recess 24 is made in this metal fitting holder 24. Moreover, the locking piece 27 is inserted into the cover 4, and a hole to catch this locking piece 27 is provided, and the cover metal fitting 9 is provided with a projection 23 to engage with the recess 30. Hereby, the midway of the metal fitting is locked to the side of the cover 4, and the flexure of the midway is prevented, whereby the fastening force of the whole cover metal fitting 9 can be strengthened. |
