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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：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：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：US4215925A
公开(公告)日：1980-08-05
申请号：US890944
申请日：1978-03-28
申请人： Nobuaki Date , Hiroshi Aizawa , Teiji Hashimoto
发明人： Nobuaki Date , Hiroshi Aizawa , Teiji Hashimoto
CPC分类号： G03B9/34
摘要： A focal plane shutter adapted for use in a single lens reflex camera and having front and rear curtains with respective charge control gears to be operated in engagement with each other during the winding process. At the terminal end of one cycle of winding operation, these gears are released from positive connection with a film winding mechanism, while the front and rear curtains are held in their cocked positions by separate latches in at least a time interval between a moment at which the diaphragm starts to move and a moment at which the mirror flips out of way to actuate release of the front curtain, thereby an electromagnetic release control for the rear curtain latch is prevented from being disturbed as by a shock which would be otherwise exerted on the rear curtain latch at the start of movement of the front curtain.
摘要翻译： 适用于单镜头反光相机的焦平面快门，并具有带有相应充电控制齿轮的前帘和后帘，以在卷绕过程中彼此接合。 在卷绕操作的一个循环的末端，这些齿轮与膜卷绕机构的正连接释放，而前帘和后帘通过分开的锁闩在至少一个时间间隔内保持在其压缩位置， 隔膜开始移动，并且反射镜翻转的时刻，以致致动前帘的释放，从而防止后幕帘闩锁的电磁释放控制被冲击所影响，否则会产生冲击 前幕帘开始运动时的后窗帘闩锁。
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公开(公告)号：US4205287A
公开(公告)日：1980-05-27
申请号：US931531
申请日：1978-08-07
申请人： Masami Shimizu , Teiji Hashimoto
发明人： Masami Shimizu , Teiji Hashimoto
CPC分类号： H01F7/14
摘要： An electromagnetic device adapted to operate with a battery of small capacity and having an armature arranged to move upon energization and de-energization of a coil, to and away from a yoke respectively. In order to insure that, after having been attracted, the armature is in intimate contact with the yoke over the entire prescribed area of interface therebetween, there is provided an annular elastic spacer which may be of round cross-section secured in an annular recess around a pivot pin for the armature at the center of length thereof and fitted in a vertical hole of the armature to permit not only absorption of the shock on the armature, thus protecting the attraction face, but also tilting movement of the armature about the spacer ring with respect to the yoke.
摘要翻译： 一种电磁装置，适于与小容量的电池一起工作，并且具有电枢，所述电枢被布置成在线圈的通电和断电时分别移动到磁轭和离开磁轭。 为了确保在被吸引之后，电枢在轭的整个规定区域之间与轭紧密接触，设置有环形弹性间隔件，其可以圆形横截面固定在环形凹部周围 用于衔铁在其长度中心处的枢轴销并且装配在电枢的垂直孔中，不仅可以吸收电枢上的冲击，从而保护吸引面，而且还可以使电枢围绕间隔环倾斜运动 相对于轭。
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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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