| 摘要 |
PROBLEM TO BE SOLVED: To prevent unintentional removal of a battery box by configuring so that an engagement part which locks a battery box does not move in an unlocking direction by following key operation.SOLUTION: In a lock structure 4 of a battery box 1 which includes a part 2 to be engaged that is formed at the battery box 1 and an engagement part 3 which engages with and disengages from the part 2 to be engaged, the engagement part 3 is configured so as to implement retreating to an unlocking position and advancing to a locking position by straight movement when the battery box 1 is fitted and to implement retreating to the unlocking position by swinging movement when the battery box 1 is removed, so that the engagement part 3 does not retreat to the unlocking position unless operation of removing the battery box 1 is implemented, and the battery box 1 is not removed unintentionally under a key unlocking situation, resulting in safety. |
