公开(公告)号：US3947855A

公开(公告)日：1976-03-30

申请号：US574942

申请日：1975-05-06

申请人： Nobuyoshi Inoue ,  Kenta Namioka

发明人： Nobuyoshi Inoue ,  Kenta Namioka

IPC分类号： G03B7/26 ,  G03B7/083 ,  G03B9/08 ,  G03B9/62 ,  G03B17/18 ,  G03B7/08

CPC分类号： G03B7/083

摘要： An electric shutter means which comprises a voltage checking circuit connected to an exposure time control circuit including an electromagnet for controlling the time of closing shutter blades so that, when the voltage of a power source battery for said exposure time control circuit has dropped to be below a predetermined level, the passage of electricity to said electromagnet may be forcibly interrupted by said voltage checking circuit.BACKGROUND OF THE INVENTIONa. Field of the InventionThe present invention relates to electric shutter means, and more particularly to an electric circuit to be applied to an electric shutter arranged so that, when the power source voltage has dropped to be below a predetermined level, the exposure time may be mechanically controlled with a specific shutter speed.B. Description of the Prior ArtA camera equipped with an electric shutter is generally provided with a voltage checking means. An electric shutter of a system wherein, when the voltage of a power source battery has dropped to be below a predetermined level and an electromagnet to control the time of closing shutter blades is no longer well energized, the exposure time will be automatically switched to be mechanically controlled with a specific shutter speed has been suggested, for example, by U.S. Pat. No. 3,777,646 and others.However, in the electric shutter of this system, the judgement of whether the exposure time is to be controlled by an electronic means or to be controlled by a mechanical means depends on whether the attraction of the electromagnet is sufficient or not, therefore the switching time is unstable and, as a result, there have been defects that, though the voltage checking means indicates that the power source voltage has dropped to be below a predetermined level, the exposure time will not be switched to be controlled by the mechanical means and that, though the voltage checking means indicates that the power source voltage is above the predetermined level, the exposure time will be controlled with a specific shutter speed by the mechanical means. This fact is likely to give an unnecessary confusion to the photographer and to lead the photographing to a failure.SUMMARY OF THE INVENTIONTherefore, a primary object of the present invention is to provide an electric shutter means arranged so that, when a voltage checking means indicates that the voltage of a power source battery has dropped to be below a predetermined value, the exposure time may be positively switched to be controlled at a specific shutter speed by a mechanical means.Another object of the present invention is to provide an electric shutter means made so that a voltage checking means may accurately check the voltage of a power source battery as it is while being used.According to the present invention, the above mentioned objects can be attained by connecting a voltage checking circuit with an exposure time control circuit and pre-setting the check level of the voltage checking circuit so as to be somewhat higher than the voltage level of the limit at which an electromagnet can operate properly so that, when the voltage of a power source battery has come to be below the above mentioned check level, the passage of electricity to the above mentioned electromagnet may be forcibly interrupted by a signal issued from said voltage checking circuit.

摘要翻译： 一种电快门装置，包括连接到曝光时间控制电路的电压检查电路，该曝光时间控制电路包括用于控制关闭快门叶片的时间的电磁体，使得当所述曝光时间控制电路的电源电池的电压已经下降到低于 预定电平，电力通向电磁铁可被所述电压检测电路强行中断。

公开(公告)号：US07708477B2

公开(公告)日：2010-05-04

申请号：US11806167

申请日：2007-05-30

申请人： Koji Arai ,  Shigemi Takahashi ,  Nobuyoshi Inoue

发明人： Koji Arai ,  Shigemi Takahashi ,  Nobuyoshi Inoue

IPC分类号： G03B9/12 ,  G03B9/08 ,  G03B9/40

CPC分类号： G03B9/20

摘要： In the focal plane shutter for cameras, a shutter base plate, an shank for attaching the first blade drive component and the second blade drive component respectively so as to enable to be rotated, an shank for attaching a set component so as to enable to be rotated, and an shank for attaching the first blade and the second blade so as to enable to be rotated respectively are made of synthetic resins. Each of the shanks is fabricated after a shutter base plate was fabricated beforehand, and grooves for sump having cross section of V letter shape are formed at the same interval of angle extending toward the axial direction of the shank at the circumferential side surfaces of the shanks.

摘要翻译： 在相机的焦平面快门中，具有快门基板，用于分别安装第一叶片驱动部件和第二叶片驱动部件以便能够旋转的柄部，用于附接固定部件的柄部，以便能够 旋转，并且用于附接第一叶片和第二叶片以便能够分别旋转的柄由合成树脂制成。 在预先制作快门底板之后制造每个柄，并且在柄的周向侧表面上以与杆的轴向方向相同的角度间隔形成具有V字形横截面的槽 。

公开(公告)号：US06190060B1

公开(公告)日：2001-02-20

申请号：US09114221

申请日：1998-07-13

申请人： Noribumi Tachihara ,  Nobuyoshi Inoue ,  Shigemi Takahashi ,  Takao Ogawa

发明人： Noribumi Tachihara ,  Nobuyoshi Inoue ,  Shigemi Takahashi ,  Takao Ogawa

IPC分类号： G03B940

CPC分类号： G03B9/18 ,  G03B9/00 ,  Y10T29/49982 ,  Y10T29/49986

摘要： A light-shielding blade material is provided that contributes to increased focal plane shutter speeds. A focal plane shutter has a front blade group and a rear blade group, each being composed of a plurality of light-shielding blades. At least one of these light-shielding blades is made of a Be-Al alloy material containing 40% by weight or more of Be, and has a thickness of 40 to 150 microns. This light-shielding blade is light in weight and high in stiffness, thereby significantly contributing the increased focal plane shutter speeds.

公开(公告)号：US5315335A

公开(公告)日：1994-05-24

申请号：US922131

申请日：1992-07-30

申请人： Ken-ichi Watabe ,  Nobuyoshi Inoue

发明人： Ken-ichi Watabe ,  Nobuyoshi Inoue

IPC分类号： G03B9/08 ,  G03B9/18 ,  G03B9/36 ,  G03B9/40

CPC分类号： G03B9/18

摘要： A focal plane shutter comprising a front blade braking lever functioning to press a front blade actuating lever to a rotating shaft thereof by utilizing resilience of a front blade actuating spring at a final stage of an exposure operation performed by the front blade actuating lever and a rear blade braking lever functioning to press a rear blade actuating lever to a rotating shaft thereof by utilizing resilience of a rear blade actuating spring at a final stage of an exposure operation performed by the rear blade actuating lever. This focal plane shutter is simple in structure thereof, capable of controlling exposure of film with high accuracy and maintaining initial performance thereof for a long term, and can be manufactured at a low cost.

摘要翻译： 一种焦平面快门，其包括前刀片制动杆，其功能是通过利用前刀片驱动弹簧在前刀片操作杆和后刀片执行器执行的曝光操作的最后阶段的弹性来将前刀片致动杆按压到其旋转轴 叶片制动杆用于通过在由后叶片驱动杆执行的曝光操作的最后阶段利用后叶片驱动弹簧的弹性来将后叶片致动杆按压到其旋转轴。 该焦平面快门的结构简单，能够高精度地控制膜的曝光并长期保持其初始性能，并且可以以低成本制造。

公开(公告)号：US4346974A

公开(公告)日：1982-08-31

申请号：US264694

申请日：1981-05-18

申请人： Toshihisa Saito ,  Nobuyoshi Inoue

发明人： Toshihisa Saito ,  Nobuyoshi Inoue

IPC分类号： G03B19/12

CPC分类号： G03B19/12

摘要： A light leakage preventing device for reflex cameras wherein a flexible light intercepting member is provided between the upper edge of a reflecting mirror and the vertical wall of a mirror box and a light intercepting member which can be brought to a light intercepting position in association with the movement of the reflecting mirror is provided between the lower edge of the reflecting mirror and the bottom wall of the mirror box so that, when the reflecting mirror is in a position in which it can conduct a light from an object to be photographed to a view finder, the light leakage from the upper edge and lower edge of the reflecting mirror to a film can be positively prevented.

摘要翻译： 一种用于反光照相机的防漏光装置，其中在反射镜的上边缘和反射镜箱的垂直壁之间设置有柔性遮光构件，以及遮光构件，该遮光构件可与遮光构件相关联地进入遮光位置 反射镜的运动设置在反射镜的下边缘和反射镜盒的底壁之间，使得当反射镜处于可以将来自被拍摄对象的光传导到视图的位置时 可以可靠地防止从反射镜的上边缘和下边缘到膜的光泄漏。

公开(公告)号：US4220409A

公开(公告)日：1980-09-02

申请号：US867297

申请日：1978-01-05

申请人： Nobuyoshi Inoue

发明人： Nobuyoshi Inoue

IPC分类号： G03B9/28 ,  G03B9/18 ,  G03B9/32 ,  G03B9/36 ,  G03B9/40

CPC分类号： G03B9/32 ,  G03B9/18

摘要： In each of the opening group and the closing group of shutter blades, there is a main blade and two auxiliary blades. When developing from a folded condition the blades of each group go from a more overlapped to a less overlapped condition. Although the same two springs may provide all three of the blades of a group with motive force for moving from the cocked to the uncocked condition, the two auxiliary blades have a driving force transmitter that is independently movable to a limited degree relative to the driving force transmitter for the main blade of the same group, one of the springs directly transmits force for moving the main blade and the other spring directly transmits force for moving the auxiliary blades.

摘要翻译： 在每个开闭组和快门叶片的关闭组中，都有一个主叶片和两个辅助叶片。 当从折叠状态展开时，每组的叶片从更重叠的状态转移到较不重叠的状态。 尽管相同的两个弹簧可以为组中的所有三个叶片提供用于从被起动器移动到未开启状态的动力，但是两个辅助叶片具有驱动力传递器，该驱动力传递器可相对于驱动力独立地移动到有限程度 发射器用于同一组的主叶片，其中一个弹簧直接传递用于移动主叶片的力，另一个弹簧直接传递用于移动辅助叶片的力。

公开(公告)号：US4051501A

公开(公告)日：1977-09-27

申请号：US700183

申请日：1976-06-28

申请人： Nobuyoshi Inoue ,  Toshihisa Saito

发明人： Nobuyoshi Inoue ,  Toshihisa Saito

IPC分类号： G03B9/64

CPC分类号： G03B9/64

摘要： A built-in self-timer for cameras comprising a cocking member movable to the uncocked position and cocked position, a sector gear engageable with said cocking member and capable of being brought to the cocked position from the uncocked position by the cocking member, a checking member engageable with an interlocking member and capable of locking in the cocked position a delaying gear train meshed with the sector gear, and a locking member engaged with the checking member and engageable with the cocking member and interlocking member so that, even after the self-timer is set in the using state, if the cocking member is returned to the uncocked position, the delaying gear train may be automatically returned to the uncocked position and, at the same time, the checking member and locking member may be moved to a position of not engaging with the interlocking member.

公开(公告)号：US4024556A

公开(公告)日：1977-05-17

申请号：US613562

申请日：1975-09-15

申请人： Nobuyoshi Inoue ,  Munetaka Shimizu

发明人： Nobuyoshi Inoue ,  Munetaka Shimizu

IPC分类号： G03B9/08 ,  G03B9/36 ,  G03B17/18 ,  G03B17/38

CPC分类号： G03B9/08

摘要： An electric shutter comprising a front blade actuating lever, a signaling lever engageable with said front blade actuating lever and a rear blade actuating lever capable of releasing said signaling lever so that the signaling lever may rotate fully in a predetermined range only at the time of such state that the rear blade actuating lever begins to move prior to the front blade actuating lever by the shutter release and the photographer may be informed by the rotation of the signaling lever of the fact that the exposing operation of the shutter is not being properly made.

摘要翻译： 一种电动快门，其包括前叶片致动杆，可与所述前刀片驱动杆接合的信号杆和能够释放所述信号杆的后刀片致动杆，使得信号杆仅在这种情况下才能在预定范围内完全旋转 说明后片驱动杆通过快门释放开始在前刀片驱动杆之前移动，并且可以通过信号杆的旋转来通知拍摄者没有正确地进行曝光操作的事实。

公开(公告)号：US20100178049A1

公开(公告)日：2010-07-15

申请号：US12686618

申请日：2010-01-13

申请人： Koji Arai ,  Shigemi Takahashi ,  Nobuyoshi Inoue

发明人： Koji Arai ,  Shigemi Takahashi ,  Nobuyoshi Inoue

IPC分类号： G03B9/10

CPC分类号： G03B9/20

摘要： In the focal plane shutter for cameras, a shutter base plate, an shank for attaching the first blade drive component and the second blade drive component respectively so as to enable to be rotated, an shank for attaching a set component so as to enable to be rotated, and an shank for attaching the first blade and the second blade so as to enable to be rotated respectively are made of synthetic resins. Each of the shanks is fabricated after a shutter base plate was fabricated beforehand, and grooves for sump having cross section of V letter shape are formed at the same interval of angle extending toward the axial direction of the shank at the circumferential side surfaces of the shanks.

摘要翻译： 在相机的焦平面快门中，具有快门基板，用于分别安装第一叶片驱动部件和第二叶片驱动部件以便能够旋转的柄部，用于附接固定部件的柄部，以便能够 旋转，并且用于附接第一叶片和第二叶片以便能够分别旋转的柄由合成树脂制成。 在预先制作快门底板之后制造每个柄，并且在柄的周向侧表面上以与杆的轴向方向相同的角度间隔形成具有V字形横截面的槽 。

公开(公告)号：US07431517B2

公开(公告)日：2008-10-07

申请号：US11226307

申请日：2005-09-15

申请人： Yuichirou Usuda ,  Nobuyoshi Inoue

发明人： Yuichirou Usuda ,  Nobuyoshi Inoue

IPC分类号： G03B9/10 ,  G03B9/08

CPC分类号： G03B19/12

摘要： A first drive member which rotates with a rotor includes a first cam portion and a second cam portion, and a second drive member which connects a drive pin with a shutter blade includes a first cam portion and a second cam portion. A circular hole of the link member is fitted to a shaft member which is fixed to the first drive member and an elongated hole thereof is fitted to the shaft member fixed to the second drive member. The first drive member rotates the second drive member first via the link member and subsequently rotates the same directly so that when an abutting portion of the second drive member comes into abutment with an edge of the elongated hole, a generated repulsive force acts toward an axis of rotation of the first drive member irrespective of the direction of rotation of a rotor 7.

摘要翻译： 与转子一起旋转的第一驱动构件包括第一凸轮部分和第二凸轮部分，并且将驱动销与快门叶片连接的第二驱动部件包括第一凸轮部分和第二凸轮部分。 连杆部件的圆形孔装配到固定到第一驱动部件的轴部件上，其长孔与固定于第二驱动部件的轴部件嵌合。 第一驱动构件经由连杆构件首先旋转第二驱动构件，并且随后直接旋转第二驱动构件，使得当第二驱动构件的邻接部分与细长孔的边缘邻接时，产生的排斥力作用于轴线 无论转子7的旋转方向如何，第一驱动构件的旋转。