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公开(公告)号：US5046680A
公开(公告)日：1991-09-10
申请号：US490234
申请日：1990-03-08
CPC分类号： G03B17/30 , G03B2217/261 , G03B2217/265 , G03B2217/266
摘要： In a film cassette, a spool core is supported for rotation in an unwinding direction to thrust a leader section of a filmstrip coiled about the spool core through a film passageway to the exterior of the cassette. A pair of flanges are arranged in spaced relation along the spool core to overlie opposite longitudinal edges of the filmstrip to radially confine the filmstrip. The flanges are adapted to permit the longitudinal film edges to force the flanges farther apart to allow the filmstrip to escape the confinement of the flanges to permit the leader section to the thrust outside the cassette. According to the invention, the leader section is relieved to permit its forward edge to be thrust clear of a light-trapping means in the film passageway before the longitudinal film edges begin to force the flanges apart, whereby when the spool core is rotated in the unwinding direction any resistance the light-trapping means and the flanges present to film movement is more easily overcome.
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公开(公告)号：US5295635A
公开(公告)日：1994-03-22
申请号：US936476
申请日：1992-08-28
CPC分类号： G03B17/30 , B65H75/28 , G03B2217/261
摘要： A spool to film attachment comprises a filmstrip having an engagement hole formed in a rear end of the filmstrip proximate a rearmost film edge and a spool having an engagement projection adapted to be received in the film hole. The projection has a pointed side oriented to face the rearmost film edge from within the film hole, when the projection is received in the film hole, to be able to tear at a predetermined point through a relatively narrow section of the filmstrip between the film hole and the rearmost film edge in response to pulling the rear end of the filmstrip away from the projection.
摘要翻译： 卷绕胶卷附件包括胶片，该胶片具有形成在胶卷片的后端附近靠近最后面的胶片边缘的接合孔和具有适于接收在胶片孔中的接合突起的卷轴。 突起具有朝向胶片孔内的最后面的胶片边缘的尖侧，当突起被容纳在胶片孔中时，能够通过薄膜孔之间的胶片的相对窄的部分在预定点处撕裂 和最后面的胶片边缘，以响应于将胶片的后端远离投影。
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公开(公告)号：US5083720A
公开(公告)日：1992-01-28
申请号：US679844
申请日：1991-04-03
IPC分类号： G03B17/30
CPC分类号： G03B17/30 , G03B2217/261 , G03B2217/265 , G03B2217/266
摘要： In a film cassette, a spool is supported for rotation in an unwinding direction inside a cassette shell, a convoluted film roll whose outermost convolution is a film leader is coiled in the unwinding direction about the spool, and a film stripper is located substantially adjacent a passageway to the exterior of the shell to be received between a leading edge portion of the film leader and a next-inward convolution of the film roll responsive to rotation of the spool in the unwinding direction to divert the leading edge portion to between a pair of light-trapping pads spaced opposite each other in the passageway. According to the invention, one of the light-trapping pads is located substantially in abutment with the stripper and the other of the pads is spaced from the stripper to generally ensure the leading edge portion of the film leader will be advanced over the one pad before the leading edge portion can be advanced over the other pad when the spool is rotated in the unwinding direction.
摘要翻译： 在薄膜盒中，卷轴被支撑用于在盒壳体内沿展开方向旋转，卷绕卷膜的卷绕卷膜卷绕卷绕卷绕卷轴的卷绕方向，并且膜剥离器基本上邻近 通向外壳的通道，以容纳在胶片引导件的前缘部分和胶片卷的下一个向内卷绕之间，其响应于卷轴在展开方向上的旋转而将前缘部分转移到一对 在通道中相互间隔开的光捕获垫。 根据本发明，光捕获垫中的一个基本上与剥离器邻接，并且另一个焊盘与剥离器间隔开，以大体上确保胶片引导件的前缘部分将在一个焊盘之前前进， 当卷轴沿展开方向旋转时，前缘部分可以在另一个垫上前进。
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公开(公告)号：US5151730A
公开(公告)日：1992-09-29
申请号：US655944
申请日：1991-02-15
CPC分类号： G03B17/30 , G03B2217/261 , G03B2217/266
摘要： In a film cassette, a film spool comprises a spool core supported for rotation in an unwinding direction to thrust a leader section of a film roll coiled about the spool core to the exterior of the cassette, a pair of flanges radially confining the film roll and loosely coupled coaxially with the spool core normally to permit the spool core to be rotated relative to the flanges in the unwinding direction, and engagement means rotatably fixed to the spool core for rotation with the spool core relative to the flanges in the unwinding direction to move into engagement with one of the flanges to make the one flange rotate in unity with the spool core in the unwinding direction. According to the invention, the one flange is resiliently flexible, and biasing means distorts the one flange for urging the one flange firmly against the engagement means to ensure the engagement means will engage the one flange when the spool core is rotated relative to the flanges in the unwinding direction.
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5.发明授权Driver device for opening light shield of film cassette biases light shield closed 失效用于打开胶片暗盒遮光罩的驱动装置偏光灯罩关闭
公开(公告)号：US5452038A
公开(公告)日：1995-09-19
申请号：US293533
申请日：1994-08-19
CPC分类号： G03B17/30 , G03B2217/265
摘要： When a film cassette having a light shield that can be rotated open to permit film movement out of and into the cassette interior is loaded into a camera, a torsionally-compliant driver device of the camera for rotating the light shield open and closed is twisted, responsive to initial engagement with the light shield, to oppositely bias the light shield closed.
摘要翻译： 当具有能够旋转打开以允许膜移动到盒内部的遮光罩的胶卷盒被装载到相机中时，用于旋转遮光罩打开和关闭的照相机的扭转兼容的驱动装置被扭曲， 响应于与遮光罩的初始接合，使遮光罩相对地偏置。
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公开(公告)号：US5295578A
公开(公告)日：1994-03-22
申请号：US40945
申请日：1993-03-31
IPC分类号： G03B17/30 , B65D85/671 , B65D81/30
CPC分类号： G03B17/30
摘要： A single-piece protective package is intended for a film cassette provided with a substantially cylindrical housing having an extending pair of lips slightly spaced apart to define a film egress/ingress mouth and with a rotatable film spool for a coiled filmstrip inside the housing having a protruding end that protrudes at least to an outside end face of the housing to permit its engagement to rotate the film spool. The package comprises a mouth cap configured to fit over the extending pair of lips of the housing including the film egress/ingress mouth to seal the film egress/ingress mouth, but not to fit over a cylindrical portion of the housing to leave the cylindrical portion visible, and spool locking means integrally formed with the mouth cap for engaging the protruding end of the film spool to prevent rotation of the film spool when the mouth cap is fit over the extending pair of lips of the housing.
摘要翻译： 单件保护包装用于具有基本圆柱形壳体的胶片盒，其具有稍微间隔开的一对延伸的唇缘，以限定膜出口/入口，并且具有用于壳体内的盘绕胶片的可旋转胶片卷轴，其具有 突出端至少突出到壳体的外端面以允许其接合以使胶片卷轴旋转。 所述包装包括口盖，其被配置为装配在所述壳体的所述延伸的一对唇缘上，包括所述膜出口/入口，以密封所述膜出口/入口，但不能装配在所述壳体的圆柱形部分上以离开所述圆柱形部分 可见和卷轴锁定装置，其与嘴盖一体形成，用于接合胶片卷轴的突出端，以防止当胶囊安装在壳体的延伸的一对唇缘上时胶片卷轴旋转。
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公开(公告)号：US5031852A
公开(公告)日：1991-07-16
申请号：US464264
申请日：1990-01-12
CPC分类号： G03B17/30 , G03B2217/261 , G03B2217/266
摘要： In a film cassette, a film spool comprises a spool core supported for rotation in an unwinding direction to thrust a leader section of a film roll coiled about the spool core to the exterior of the cassette and in a winding direction to return the leader to the interior of the cassette, and a pair of flanges positioned along the spool core to overlie opposite sides of the film roll to radially confine the film roll within skirted peripheries of the flanges. The flanges have respective central openings through which the spool core coaxially extends to normally permit the flanges and the spool core to be independently rotated in the two directions. According to the invention, engagement hooks are rotatably fixed to the spool core for initial rotation with the spool core relative to the flanges in the unwinding direction, for movement into engagement with at least one of the flanges to make the flange rotate in unity with the spool core when the spool core is rotated further in the unwinding direction, to improve the ability of the film spool to thrust the leader from the cassette, and in the film winding direction, for movement out of engagement with the flange to permit the flange to be independently rotated when the spool core is rotated further in the winding direction, to substantially ensure the leader can be rewound within the skirted periphery of the flange.
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