| 摘要 |
<p>PROBLEM TO BE SOLVED: To make a battery storage structure fit to the usage of a general mass battery, to miniaturize the device and to improve the fall-proof impact property by fitting a 2nd fitting part to a 2nd hooking part with an opening part closed by a battery cover, moving the battery to an electrode side and positioning and forming a lock piece between the battery and a part of the battery cover. SOLUTION: A 1st fitting part 15 is fitted to a 1st hooking part 14 and a battery cover 3 is movable so that a 2nd fitting part 13 can be fitted to a 2nd hooking part when the cover 3 closes an opening part. The movement of the cover 3 against the opening part is blocked because a lock piece 6 is positioned and formed between a battery 1 and the cover 3 part where the part 12 exists when the battery 1 in a battery storage chamber is moved to an electrode 2 side. With such a structure, the battery storage chamber can efficiently be laid out at the center part of a rear of a housing 4 and besides the cover 3 can cover the battery 1 accommodated in the battery storage chamber completely.</p> |
