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    • 6. 发明授权
    • Film-thrusting cassette
    • 胶片推拉盒
    • US5031855A
    • 1991-07-16
    • US464047
    • 1990-01-12
    • Michael T. WolfJoseph E. YokajtyMark D. Fraser
    • Michael T. WolfJoseph E. YokajtyMark D. Fraser
    • G03B17/30
    • G03B17/30G03B2217/266
    • A film cassette comprises a spool rotatable in unwinding and winding directions to thrust a leader section of a film roll coiled about the spool from the cassette and to return the leader to the cassette; a pair of flanges coaxially arranged along the spool to normally permit each of the flanges to be independently rotated relative to the spool in the two directions and to radially confine the film roll within skirted peripheries of the flanges; and a film stripper received between the leader and the next-inward convolution of the film roll to free the leader from the flanges by inducing the leader to flex the flanges away from one another at their skirted peripheries responsive to rotation of the spool in the unwinding direction. According to the invention, the spool has a pair of integral disks located within the skirted peripheries of the flanges to include the film roll between the disks. At least one of the flanges can be fixed to at least one of the disks to make the fixed flange rotate in unity with the spool when the spool is rotated in the unwinding direction, to improve the ability of the spool to thrust the leader from the cassette. Conversely, the fixed flange can be released from the disk to permit it to be independently rotated relative to the spool when the spool is rotated in the winding direction, to generally ensure the leader will be rewound within the skirted periphery of the flange.
    • 胶片盒包括可绕展开和卷绕方向旋转的卷轴,以推动卷筒绕卷轴卷绕的胶卷的引导部分,并使引导件返回盒中; 一对沿着线轴同轴布置的凸缘,以通常允许每个凸缘在两个方向上相对于阀芯独立地旋转,并且将膜卷径向地限制在凸缘的边缘周边内; 并且胶片剥离器被接收在胶卷的引导件和下一个向内卷绕之间,以使引导件从凸缘释放,通过引导引导件使凸缘在它们的裙边周边彼此远离地响应于卷轴在展开中的旋转而弯曲 方向。 根据本发明,卷轴具有位于凸缘的裙边周围的一对一体的盘,以包括在盘之间的胶卷。 至少一个凸缘可以固定到至少一个盘上,以使当固定凸缘在卷轴沿展开方向旋转时与卷轴一体地旋转,以提高卷轴将引导件从 盒式磁带 相反,固定法兰可以从盘上释放,以允许其在卷轴沿卷绕方向旋转时相对于卷轴独立地旋转,从而通常确保引导件将在凸缘的边缘周边内重新卷绕。
    • 7. 发明授权
    • Film cassette with notched film leader
    • 电影胶卷带有缺口的电影领袖
    • US5257750A
    • 1993-11-02
    • US886911
    • 1992-05-22
    • Michael T. WolfDavid R. LinneMark D. Fraser
    • Michael T. WolfDavid R. LinneMark D. Fraser
    • G03B17/30G03B1/04
    • G03B17/30G03B2217/266
    • In a film cassette, a spool is supported for rotation in an unwinding direction inside a cassette shell, a filmstrip is coiled about the spool to form a film roll with an outermost convolution having a leading end, a pair of flanges are coaxially arranged along the spool with respective peripheral annular lips overlapping the outermost convolution adjacent opposite longitudinal edges of the outermost convolution to radially confine the film roll, respective notches are cut in the longitudinal edges at individual locations nearby the leading end which receive sections of the annular lips to allow sections of the longitudinal edges between the notches and the leading end to overlap the annular lips to hold the leading end spaced from a next-inward convolution of the film roll, and a stripper is positioned closer to one of the longitudinal edges than to the other for receipt between the leading end and the next-inward convolution to divert the leading end into a passageway out of the shell when the spool is rotated in the unwinding direction. According to the invention, the notch in the longitudinal edge that is farther from the stripper is sufficiently shallow to cause the section of the annular lip in that notch to bottom out in it to prevent the section of the annular lip in the notch in the longitudinal edge that is closer to the stripper from separating from that notch.
    • 在胶片盒中,卷轴被支撑以在盒壳体内沿展开方向旋转,胶片绕卷轴卷绕以形成具有前端的最外圈的胶片卷,一对凸缘沿着 卷轴具有与最外圈相邻的相邻纵向边缘的最外圈相交的相应周边环形唇缘,从而径向限制胶卷,相应的凹口在靠近环形唇缘部分的前端附近的各个位置被切割成纵向边缘, 在凹口和前端之间的纵向边缘与环形唇缘重叠以将前端保持与薄膜卷的下一个向内卷绕隔开,并且剥离器位于比另一个纵向边缘更靠近另一个纵向边缘 领先端和下一个向内卷曲之间的收据将前端转移到通道外 当卷轴沿展开方向旋转时。 根据本发明,在远离剥离器的纵向边缘中的切口足够浅,使得该凹口中的环形唇缘的部分在其中底部底部,以防止在纵向上的凹口中的环形唇缘的部分 更靠近剥离器的边缘与该凹口分离。
    • 10. 发明授权
    • Visual exposure indicating system
    • 视觉曝光指示系统
    • US5552849A
    • 1996-09-03
    • US377542
    • 1995-01-23
    • Anthony DiRisioEdgar G. EarnhartMichael T. Wolf
    • Anthony DiRisioEdgar G. EarnhartMichael T. Wolf
    • G03B17/30G03B17/26
    • G03B17/30G03B2217/263
    • A film cassette includes a cassette body, a film spool onto which can be wound a strip of film, a drive disk coupled directly to the film spool, and an indicator flex disk that includes a film status indicator tab whose position relative to a window of the film cassette indicates the film exposure status. The position of the film status indicator tab is changed when the flex disk is moved into engagement with the drive disk and the film spool is rotated upon film movement. The film status indicator tab otherwise does not engage the drive disk and therefore does not change position. The cassette is particularly suited for operation with a photographic camera that includes a camera body, a loading chamber in the camera body that receives the film cassette, and a loading chamber cover having at least one movable indicator release pin that moves the flex disk into and out of engagement with the drive disk and thereby changes the position of the film status indicator tab. A camera controller determines the film status and controls the movement of the indicator release pin to selectively change the position of the film status indicator tab in accordance with the film status.
    • 一个胶卷盒包括一个盒体,一个薄膜卷筒,可以在其上缠绕一条薄膜,一个直接连接到薄膜卷轴的驱动盘,以及一个指示器柔性盘,包括一个胶片状态指示卡片, 胶卷盒指示胶片曝光状态。 当柔性盘移动到与驱动盘接合并且胶片卷轴在胶片移动时旋转时,胶片状态指示标签的位置被改变。 胶片状态指示标签否则不接合驱动盘,因此不会改变位置。 盒式录像带特别适用于摄像机的操作,照相机包括照相机主体,照相机主体中的收纳胶片暗盒的装载室,以及装载室盖,其具有至少一个活动指示器释放销, 与驱动盘不接合,从而改变胶片状态指示标签的位置。 相机控制器确定胶片状态并控制指示剂释放销的移动,以根据胶片状态选择性地改变胶片状态指示标签的位置。