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公开(公告)号：US4364654A
公开(公告)日：1982-12-21
申请号：US279258
申请日：1981-07-01
申请人： Michio Senuma , Fumio Shimada , Yoshihiro Shigeta , Syuichiro Saito , Hiroshi Aizawa , Takehiko Ohniwa , Canon Denshi Kabushiki Kaisha
发明人： Michio Senuma , Fumio Shimada , Yoshihiro Shigeta , Syuichiro Saito , Hiroshi Aizawa , Takehiko Ohniwa , Canon Denshi Kabushiki Kaisha
摘要： In a shutter of the electromagnetic release type arranged to have shutter blades locked by locking members in their charged states and to make an exposure by releasing the shutter blades from the locking members, a first locking member is arranged to lock each of the charged shutter blades while a second locking member is arranged to lock the shutter blade when the shutter blade is released from the first locking member and to have the shutter blade released therefrom by the action of an electromagnet. The releasing torque required for the second locking member is smaller than that of the first locking member.
摘要翻译： 在电磁释放型快门中，其具有被锁定构件锁定在其充电状态的快门叶片并且通过从锁定构件释放快门叶片而进行曝光，第一锁定构件被布置成锁定每个带电快门叶片 而第二锁定构件被布置成当快门叶片从第一锁定构件释放时锁定快门叶片并且通过电磁体的作用使快门叶片从其中释放。 第二锁定构件所需的释放扭矩小于第一锁定构件的释放扭矩。
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公开(公告)号：US4355878A
公开(公告)日：1982-10-26
申请号：US279256
申请日：1981-07-01
申请人： Takehiko Ohniwa , Michio Senuma , Fumio Shimada , Syuichiro Saito , Yoshihiro Shigeta , Hiroshi Aizawa
发明人： Takehiko Ohniwa , Michio Senuma , Fumio Shimada , Syuichiro Saito , Yoshihiro Shigeta , Hiroshi Aizawa
CPC分类号： G03B9/58
摘要： A hold releasing magnetic device so designed that by controlling the current supply to a magnet the armature is displaced relative to the yoke so as to release a held shutter member wherein the armature and the yoke are supported coaxially with each other on the same shaft on a base plate on which the magnetic device is mounted, with the yoke being securable on the base plate.
摘要翻译： 一种保持释放磁性装置，其设计成通过控制向磁体的电流供应，电枢相对于磁轭移位，以便释放保持的快门部件，其中电枢和磁轭在同一轴上同轴地支撑在一个 该基座板上安装有磁性装置，该轭可固定在基板上。
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公开(公告)号：US4351596A
公开(公告)日：1982-09-28
申请号：US216431
申请日：1980-12-15
申请人： Takehiko Ohniwa , Syuichiro Saito
发明人： Takehiko Ohniwa , Syuichiro Saito
CPC分类号： G03B9/08
摘要： A moving coil type electromagnetic driving source designed to obtain reliable contact between slide pieces and current supply brushes for supplying current to the moving coil wherein each slide piece is provided with grooves having two inclined surfaces opposed to each other, with an elastic brush having a circular or semi-circular section being provided for each groove such that the brush is in contact with the groove at two points.
摘要翻译： 一种动圈式电磁驱动源，其特征在于，为了获得滑动片和用于向动圈供给电流的电流刷之间的可靠接触，其中每个滑动片设置有具有彼此相对的两个倾斜表面的凹槽，弹性刷具有圆形 或每个凹槽设置的半圆形部分，使得刷子在两个点处与凹槽接触。
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公开(公告)号：US4312583A
公开(公告)日：1982-01-26
申请号：US217038
申请日：1980-12-16
申请人： Takehiko Ohniwa , Yoji Sugiura
发明人： Takehiko Ohniwa , Yoji Sugiura
CPC分类号： G03B9/08
摘要： An electromagnetic device for driving a shutter includes a moving coil which is arranged to rotate in the magnetic field of a stator. A current supply arrangement for supplying exciting current to the moving coil includes a pair of insulated side pieces fixed about the rotational axis of the coil and connected to both terminals of the moving coil, and a pair of elastic rod-shaped brushes pressed against the side pieces on diametrically opposite sides of the rotational axis. A slide surface on each slide piece is provided with at a pair of flatened portions against which the elastic rod-shaped brushes are pressed so as to hold the shutter blades at a stop position.
摘要翻译： 用于驱动闸门的电磁装置包括被设置成在定子的磁场中旋转的动圈。 用于向动圈供给励磁电流的电流供给装置包括围绕线圈的旋转轴线固定并连接到动圈的两端的一对绝缘侧片，以及一对按压在侧面上的弹性棒状刷 在旋转轴的径向相对侧上的片。 每个滑块上的滑动表面设置有一对扁平部分，弹性棒状刷被按压到该平坦部分上，以将快门叶片保持在停止位置。
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