| 摘要 |
PROBLEM TO BE SOLVED: To surely cover an opening section from which a magazine is partially protruded from the opening section of the unit main body and to prevent the occurrence of an easy opening of the cover even though an external force is applied. SOLUTION: An opening section 6 is formed on a front surface 3a of a nose section 3 provided on a case 2. When a magazine M is loaded from the section 6, a back section m of the magazine M is protruded from the surface 3a. In the section 3, a cover 11, which covers the section 6, is supported in a freely rotatable manner. When the cover 11 becomes in a closed attitude, the section m of the magazine M is stored in a recessed part 11a of the cover 11. A protruding part 11c which follows the shape of the section m is formed on the external surface of the cover 11. Thus, when the cover 11 is closed, the volume of the protruding portion toward the front becomes small.
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