| 摘要 |
PURPOSE:To prevent a tape from flawing and to prevent a case from deteriorating in its strength by providing a lock tool having a lock claw for engaging and disengaging with an engagement part of a front lid and a releasing piece facing the outside of a side wall. CONSTITUTION:The lock tool 15 is approximately parallel movably supported to the case side wall 24 in its lock posture of engaging the lock claw 16 with the engagement part 23 over to its unlock posture of disengaging from the engagement part 23. In this method, a separate spring body 19 is provided for energizing the lock tool 15 to be pressed into the lock posture, and the spring body 19 is mounted in the case main body 1 to act its spring pressure on an existing place of the releasing piece 17. By this method, the lock tool 15 can be set up without difficulty in such a limited space in the case as forward from the middle part dividing in front and rear of the case side wall 24, thus eliminating an interference of the lock tool 15 with the tape and also a sacrifice of the case strength due to assemblage of the lock tool 15 as well.
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