| 摘要 |
Adjacent a side wall of a casing, a strap supporting post 49a is formed integrally with and extends form the inner surface of the top panel 41a of the upper casing half 41. The strap supporting post 49a has a screw bore 51 extending from the end face of the projecting end thereof and therethrough deep into the top panel 41a. A reentrant cavity 56 is formed in one side wall of the casing such that the post 49a is positioned generally in the center of the cavity. A metal-made screw 54 is passed through a through-bore in the lower casing half 42 and threaded into the screw bore to fasten the upper casing half 41 and the lower casing half 42 together. A strap is hooked on the post 49a by being inserted into the cavity from one side of the post 49a to wrap around the post and then being pulled out of the cavity from the opposite side of the post.
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