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公开(公告)号：US4153360A
公开(公告)日：1979-05-08
申请号：US764287
申请日：1977-01-31
申请人： Noboru Kodaira , Nobuo Tezuka , Mitio Senuma , Teiji Hashimoto , Masanori Uchidoi , Yukio Iura
发明人： Noboru Kodaira , Nobuo Tezuka , Mitio Senuma , Teiji Hashimoto , Masanori Uchidoi , Yukio Iura
摘要： A focal plane shutter for a camera includes a shutter unit casing for supporting a shutter mechanism. A rotatable body is connected with the shutter for winding up the shutter to a charged position. A shutter driving spring is also connected with the shutter mechanism for driving the shutter and a holding member is coupled with the rotatable body for holding the shutter mechanism in a charged position. A driving shaft carrying a driving gear is coupled to the rotatable body through a transmission gear and a clutch. A spring is coupled with the clutch to urge the clutch in a direction for releasing engagement between the transmission gear and the rotatable body. The driving gear has a plane section on its circumferential periphery spacing adjacent teeth apart so that engagement between the driving gear and the transmission gear is released when the rotatable body is held so that the transmission gear and the clutch can rotate, under the influence of the spring, back to the initial position.
摘要翻译： 用于相机的焦平面快门包括用于支撑快门机构的快门单元壳体。 可旋转体与快门连接，用于将快门卷绕到充电位置。 快门驱动弹簧还与快门机构连接以驱动快门，并且保持构件与可旋转体联接，用于将快门机构保持在充电位置。 承载驱动齿轮的驱动轴通过传动齿轮和离合器联接到旋转体。 弹簧与离合器联接以沿着用于释放传动齿轮和可旋转体之间的接合的方向推动离合器。 驱动齿轮具有在其周向间隔相邻的间隔的平面部分，使得当可旋转体被保持时驱动齿轮和传动齿轮之间的接合被释放，使得传动齿轮和离合器可以在 春天，回到初始位置。
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公开(公告)号：US4281914A
公开(公告)日：1981-08-04
申请号：US114516
申请日：1980-01-23
申请人： Nobuo Tezuka , Teiji Hashimoto , Mitio Senuma , Yutaka Iwata
发明人： Nobuo Tezuka , Teiji Hashimoto , Mitio Senuma , Yutaka Iwata
IPC分类号： G03B9/34
CPC分类号： G03B9/34
摘要： Rollers having attached thereto ribbons of a shutter screen of a focal plane shutter are arranged to have either another roller or a shutter screen take-up shaft fitted therein with a frictional force provided between them. The rollers are provided with an engaging part for engagement with an external member. The degree of parallelism between the slit forming ends of the front and rear screens of the shutter forming a slit for exposure is adjustable by operating the external member to rotate the rollers with a force greater than the frictional force.
摘要翻译： 附着有焦平面快门的快门屏幕的色带的辊布置成具有安装在其间的另一个辊或快门帘卷取轴，其间设置有摩擦力。 辊设置有用于与外部构件接合的接合部。 形成用于曝光的狭缝的遮板的前后帘的狭缝形成端之间的平行度可通过操作外部构件以通过大于摩擦力的力旋转辊来调节。
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公开(公告)号：US4204762A
公开(公告)日：1980-05-27
申请号：US942031
申请日：1978-09-13
CPC分类号： G03B9/32
摘要： In a focal plane shutter having two curtains which unwind from shafts after being released, the shaft controls a master gear, causing a keying pin on the latter to activate braking action on the curtain at a time interval near the terminal end of running-down movement of the curtain, as a pair of heavy expanding frictional shoes are driven to rotate at accelerated speeds and pressed against the internal surface of a fixed drum by a centrifugal force. During the shutter cocking operation, the key is taken out of connection with the brake so that the driving torque of the film winding shaft is correspondingly decreased.
摘要翻译： 在具有两个窗帘的焦平面挡板中，该帘幕在松开之后从轴展开，该轴控制主齿轮，使其上的键锁销在后退运动终端附近的时间间隔上启动帘幕上的制动作用 的帘子，因为一对重的膨胀摩擦鞋被驱动以加速的速度旋转并通过离心力压靠在固定的滚筒的内表面上。 在快门启动操作期间，钥匙与制动器连接而取出，使得卷绕轴的驱动扭矩相应地减小。
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公开(公告)号：US4240055A
公开(公告)日：1980-12-16
申请号：US847744
申请日：1977-11-02
申请人： Masami Shimizu , Teiji Hashimoto , Hideaki Miyakawa , Masanori Uchidoi , Hiroshi Aizawa , Tadashi Ito
发明人： Masami Shimizu , Teiji Hashimoto , Hideaki Miyakawa , Masanori Uchidoi , Hiroshi Aizawa , Tadashi Ito
CPC分类号： H01F7/08 , H01H71/321
摘要： In an electromagnetic release for a camera a normally de-energized electromagnet is coupled with unitarally joined elongated pole pieces, and when energized, generates a magnetic flux opposing the magnetic flux of a permanent magnet. A moveable, magnetizable armature adjacent corresponding ends of the pole pieces is normally attracted by the pole pieces as a result of the flux of the permanent magnet when the electromagnet is deenergized. The permanent magnet is positioned between the pole pieces. A spring biases the armature to disengage it from the faces of the pole pieces.
摘要翻译： 在照相机的电磁释放中，通常断电的电磁体与单体接合的细长极片耦合，并且当被激励时，产生与永久磁铁的磁通相反的磁通量。 当电磁铁断电时，与极片相对端相邻的可移动的可磁化电枢通常被极片吸引。 永磁体位于极片之间。 弹簧偏压衔铁以将其从极片的表面脱离。
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公开(公告)号：US4316662A
公开(公告)日：1982-02-23
申请号：US112699
申请日：1980-01-16
申请人： Yoichi Tosaka , Teiji Hashimoto , Nobuo Tezuka
发明人： Yoichi Tosaka , Teiji Hashimoto , Nobuo Tezuka
CPC分类号： G03B9/28
摘要： A brake device for use with a shutter having a driving member which runs down when the shutter is opened or closed, includes a brake member pivotally rotatable about a stationary shaft and arranged upon engagement with the shutter driving member to slow it down and bring it to rest. An elastic material is employed in forming at least one of the above-described brake member and stationary shaft to effect a frictional engagement therebetween which contributes to the braking of the shutter driving member.
摘要翻译： 一种用于与闸门一起使用的制动装置，其具有当闸门打开或关闭时向下运动的驱动构件，包括可围绕静止轴可枢转地旋转的制动构件，并且在与挡板驱动构件接合时被布置成使其减速并使其 休息。 在形成上述制动构件和固定轴中的至少一个时采用弹性材料，以实现其间的摩擦接合，这有助于快门驱动构件的制动。
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公开(公告)号：US4378150A
公开(公告)日：1983-03-29
申请号：US280339
申请日：1981-07-06
申请人： Teiji Hashimoto , Michio Senuma
发明人： Teiji Hashimoto , Michio Senuma
摘要： In an electromagnetically driven focal plane shutter of the type having a trailing screen which moves irrespective as to whether a leading screen is moving, there are provided a detecting member arranged to detect movement of the leading screen and an inhibiting means which inhibits the trailing screen from moving when movement of the leading screen is not detected.
摘要翻译： 在具有拖尾屏幕的类型的电磁驱动焦平面快门中，无论前置屏幕是否正在移动，都会移动，设置有检测构件，用于检测前屏幕的移动，以及抑制装置， 未检测到主屏幕的移动时移动。
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公开(公告)号：US4560265A
公开(公告)日：1985-12-24
申请号：US569783
申请日：1984-01-10
申请人： Teiji Hashimoto
发明人： Teiji Hashimoto
CPC分类号： G03B9/18
摘要： A blade type focal plane shutter in which a number of shutter blades are mounted for parallel-linked movements by two operating arms, the system for supporting the blades reducing the size of the shutter and one end of a first auxiliary blade succeeding a slit forming blade is connected to the operating arms in accordance with a relationship between the pins and the arc grooves.
摘要翻译： 一种叶片型焦平面快门，其中多个快门叶片安装用于通过两个操作臂的平行连接的运动，用于支撑叶片的系统减小了闸门的尺寸，并且在狭缝形成叶片之后的第一辅助叶片的一端 根据销和电弧槽之间的关系连接到操作臂。
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公开(公告)号：US4394081A
公开(公告)日：1983-07-19
申请号：US292733
申请日：1981-08-14
申请人： Teiji Hashimoto , Syuichiro Saito
发明人： Teiji Hashimoto , Syuichiro Saito
摘要： Disclosed is a magnetically controlled focal plane shutter wherein one electromagnet controls a leading shutter curtain and another electromagnet controls a following shutter curtain by releasing respective checking members as power is supplied thereto. The electromagnetic characteristics of the electromagnet that controls the following shutter curtain differ from those of the electromagnet controlling the leading shutter curtain. According to a specific embodiment disclosed, the follower-curtain controlling electromagnet saturates earlier than the leading curtain controlling magnet so as to compensate for deterioration of an energizing battery and thereby limits the problem of shutter time lag resulting from the long battery use.
摘要翻译： 公开了一种磁力控制的焦平面快门，其中一个电磁体控制前导快门帘幕，另一个电磁体通过在向其提供电力时释放相应的检查部件来控制随后的快门帘幕。 控制以下快门帘幕的电磁铁的电磁特性与控制前挡板帘幕的电磁体的电磁特性不同。 根据所公开的具体实施例，随动帘控制电磁体比前帘控制磁体早饱和，以补偿激励电池的劣化，从而限制由长电池使用引起的快门时滞的问题。
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公开(公告)号：US4382670A
公开(公告)日：1983-05-10
申请号：US342205
申请日：1982-01-25
申请人： Teiji Hashimoto , Michio Senuma , Fumio Shimada
发明人： Teiji Hashimoto , Michio Senuma , Fumio Shimada
CPC分类号： G03B9/18
摘要： Disclosed is a focal plane shutter for a camera having a shutter blade group consisting of a plural number of light shading thin plates held with two arms, so designed that the slit forming blade positioned at the end of the arm and a light shading auxiliary blade positioned next to the above are made to move in parallel by way of a parallel linkage and that a plural number of other auxiliary blades are mounted rotatably around the shaft provided on the one arm and engaged with a common shaft provided on the other arm in such a manner that along with the rotation of the latter arm they are rotated with the latter shaft.
摘要翻译： 公开了一种具有快门叶片组的相机的焦平面快门，该快门叶片组由多个固定有两个臂的遮光薄板组成，设计成使得位于臂的端部处的狭缝形成刀片和位于 通过平行连杆使上述的平行移动，并且多个其他辅助叶片围绕设置在一个臂上的轴可旋转地安装并与设置在另一个臂上的公共轴接合在一起 随着后一个臂的旋转，它们随后一个轴旋转。
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公开(公告)号：US4319823A
公开(公告)日：1982-03-16
申请号：US208343
申请日：1980-11-19
申请人： Teiji Hashimoto
发明人： Teiji Hashimoto
CPC分类号： G03B9/08
摘要： An electromagnetic driving device for driving shutter blades wherein a field coil used as stator encircles a permanent magnet rotor and extends across the rotational axis thereof. The rotor is arranged to undergo reciprocating rotation through less than one half turn in driving the shutter blades to open and close the shutter. Interference between the field coil and a coaxially arranged output shaft is avoided by the provision of a U-shaped intermediate member extending about the field coil and connecting the output shaft and the rotor.
摘要翻译： 一种用于驱动快门叶片的电磁驱动装置，其中用作定子的励磁线圈环绕永磁转子并且横过其旋转轴线延伸。 转子被布置成在驱动快门叶片时经过少于一半的往复旋转以打开和关闭快门。 通过设置围绕励磁线圈延伸并连接输出轴和转子的U形中间构件来避免励磁线圈与同轴布置的输出轴之间的干扰。
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