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    • 57. 发明授权
    • Photo film cassette
    • 照片胶片盒
    • US6065702A
    • 2000-05-23
    • US133817
    • 1998-08-13
    • Tadashi MochizukiSeiichi WatanabeKeiji ShigesadaNaoyoshi ChinoMasahiro EnomotoMototada YasuiAkira Tomita
    • Tadashi MochizukiSeiichi WatanabeKeiji ShigesadaNaoyoshi ChinoMasahiro EnomotoMototada YasuiAkira Tomita
    • G03B17/30G03C3/00G03B23/02B65H75/12
    • G03B17/30G03C3/00G03C2200/10
    • A photo film cassette has a spool core about which photo film is wound in a form of a roll. A cassette shell contains the spool core in a rotatable manner. Two flanges have a disk shape, and are secured to respective ends of the spool core, for regulating lateral edges of the roll of the photo film. A circumferential lip is disposed on each flange, is extended toward the opposite one of the flanges, wraps one of the lateral edges of an outermost turn of the photo film of the roll, and prevents the photo film from being loosened. A rim portion is disposed on an circular edge of the circumferential lip confronted with the opposite one of the flanges, to project with a bend away from the spool core. A contact face is disposed on the rim portion, and contacts the one of the lateral edges of the photo film when the photo film is unwound from the spool core or wound back about the spool core. The contact face has a contact range of 0.15.0.8 mm in contacting the one of the lateral edges of the photo film.
    • 摄影胶片盒具有卷轴芯,照相胶片以卷的形式缠绕在该芯芯上。 盒壳以可旋转的方式包含卷轴芯。 两个凸缘具有圆盘形状,并被固定到卷轴芯的相应端部,用于调节摄影胶片卷的侧边缘。 在每个凸缘上设置有周向唇缘,朝向相对的一个凸缘延伸,包裹卷筒的摄影胶片的最外圈的一个侧边缘,并防止照相胶片松动。 边缘部分设置在与相对的一个凸缘相对的圆周唇缘的圆形边缘上,以与远离卷轴芯的弯曲部突出。 接触面设置在边缘部分上,并且当照相胶片从卷轴芯展开或围绕卷轴芯绕回时,接触照相胶片的一个侧边缘。 接触面的接触范围为0.15.0.8mm,以接触摄影胶片的一个侧边缘。
    • 58. 发明授权
    • Magnetic disk cartridge
    • 磁盘盒
    • US5761016A
    • 1998-06-02
    • US708304
    • 1996-09-04
    • Seiichi Watanabe
    • Seiichi Watanabe
    • G11B23/00G11B23/03
    • G11B23/0035G11B23/0312
    • A magnetic disk cartridge includes a magnetic disk, a cassette shell encasing the magnetic disk, and a disk-shaped center core which supports the magnetic disk and is adapted for rotation by a turntable equipped with an annular chucking magnet. A magnetic head access opening is formed in one side surface of the cassette shell, a center portion of the center core is formed with a center hole for engagement by a center locating pin of the turntable, and a peripheral portion of the center core is formed with a step-like annular chucking region whose level differs from that at the mouth of the center hole. The chucking region is adapted to make surface contact with the annular chucking magnet. The structure enables the chucking magnet to strongly attract and reliably secure the center core, thereby preventing slippage during high-speed rotation, and to prevent rotational vibration owing to unbalanced loading.
    • 磁盘盒包括一个磁盘,一个装在磁盘上的磁带盒,以及一个盘形的中心磁芯,它支持磁盘并适用于旋转装置,该旋转台装有环形卡盘磁铁。 在磁带盒外壳的一个侧表面上形成有一个磁头存取开口,中心芯的中心部分形成有一个中心孔,用于与转台中心定位销接合,中心芯的周边部分形成 具有阶梯状环形夹持区域,其水平位置不同于中心孔口。 夹紧区域适于与环形卡盘磁体进行表面接触。 该结构使得夹紧磁体能够强力地吸引并可靠地固定中心芯,从而防止高速旋转期间的滑动,并且防止由于不平衡负载引起的旋转振动。