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    • 8. 发明申请
    • MAGNETIC TAPE CASSETTE AND TAPE REEL
    • 磁带盒和胶带
    • WO9965028A3
    • 2000-03-02
    • PCT/JP9903120
    • 1999-06-11
    • FUJI PHOTO FILM CO LTDASHIKAWA TERUOONMORI SHOZOHIRAGUCHI KAZUOMORITA KIYOONAITO HIROYUKI
    • ASHIKAWA TERUOONMORI SHOZOHIRAGUCHI KAZUOMORITA KIYOONAITO HIROYUKI
    • G11B23/037G11B23/087G11B23/113
    • G11B23/113G11B23/037G11B23/08735G11B23/08785
    • The magnetic tape cassette comprises a lid for covering magnetic tape in a freely opening and closing manner, a lid lock for locking the lid in its closed state, and a lid spring (71) not only for energizing the lid lock in its locking direction but also for energizing the lid in its closing direction. The lid spring (71) is structured such that a coil portion (71c) thereof is mounted on a support shaft pin (61a) of the side plate (55a) of an outer lid (51) in a loose fit manner, one leg portion (71a) thereof is secured to a projection portion (65) provided on the side plate (55a), and the other leg portion (71b) thereof is secured to a projection (6) provided on the side surface of an upper half (2) and can be engaged with the lid lock from the upper half (2) side to thereby energize the lid lock in the locking direction of the lid. On the upper half (2), there is provided position restrict means (5) which can be contacted with the coil portion (71c) of the lid spring (71) to thereby restrict the position of the coil portion (71c). Accordingly, it is possible to provide a magnetic tape cassette which can prevent the shaving of a support shaft pin caused by mutual contact between the support shaft pin and the coil portion of a lid spring.
    • 磁带盒包括用于以自由开启和关闭的方式覆盖磁带的盖子,用于将盖子锁定在其关闭状态的盖子锁定器,以及盖弹簧(71),不仅用于在锁定方向上激活盖子锁定件 也用于使盖在其关闭方向上通电。 盖弹簧(71)的构造使得其线圈部(71c)以松配合方式安装在外盖(51)的侧板(55a)的支撑轴销(61a)上,一个脚部 (71a)被固定到设置在侧板(55a)上的突出部分(65)上,另一个脚部(71b)固定到设置在上半部(2)的侧表面上的突起(6) ),并且可以从上半部(2)侧与盖锁定接合,从而在盖的锁定方向上激活盖锁。 在上半部(2)上设置有能够与盖弹簧(71)的线圈部(71c)接触的位置限制装置(5),从而限制线圈部(71c)的位置。 因此,可以提供一种磁带盒,其可以防止由支撑轴销和盖弹簧的线圈部分之间的相互接触引起的支撑轴销的剃刮。