| 摘要 |
PROBLEM TO BE SOLVED: To assure easier loading and unloading of a device unit formed in the simplified structure. SOLUTION: A power supply unit 21 has the width almost equal to the width of a device body case 12, and is provided with a couple of parallel ribs 21b to be guided at each side extending in the widthwise direction. A guiding projection 12c for guiding the rib 21b to be guided in the unit storing direction is formed at the internal wall surface of the device body case 12, namely at the internal wall surface corresponding to the side in the widthwise direction. At the time when the power supply unit 21 is stored within the device body case 12, the power supply unit is guided in the unit storing direction because of the engaging relationship between the rib 21b to be guided and the guiding projection 12c, and the power supply unit 21 is stopped within the device body case 12 through separable engagement of a pawl 12db of an engagement 12d with recess 21c to be engaged. COPYRIGHT: (C)2008,JPO&INPIT
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