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公开(公告)号：US20140369675A1
公开(公告)日：2014-12-18
申请号：US14470400
申请日：2014-08-27
Applicant: SEIKO PRECISION INC.
Inventor： Hiroshi TAKAHASHI , Shoichi Tokura , Chiaki Nemoto , Yoichi Nakano
Abstract: A blade drive device includes: a board including an opening; first and second blades opening and closing the opening; and first and second actuators arranged adjacent to each other and respectively driving the first and second blades, wherein the first and second actuators respectively include first and second stators, first and second rotors, and first and second coils, and the first and second rotors is arranged to sandwich at least one of the first and second coils.
Abstract translation: 刀片驱动装置包括：包括开口的板; 第一和第二叶片打开和关闭开口; 以及第一和第二致动器，彼此相邻并且分别驱动第一和第二叶片，其中第一和第二致动器分别包括第一和第二定子，第一和第二转子以及第一和第二线圈，并且第一和第二转子是 布置成夹持第一和第二线圈中的至少一个。
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公开(公告)号：US09658516B2
公开(公告)日：2017-05-23
申请号：US14976816
申请日：2015-12-21
Applicant: SEIKO Precision Inc.
Inventor： Seiichi Oishi , Shoichi Tokura
IPC: G03B9/40
CPC classification number: G03B9/40
Abstract: To provide a blade drive device capable of suppressing the increase in number of components while suppressing the bounding of blades, and an optical apparatus including the blade drive device. A blade drive device 10 includes a partition plate 21 having an opening 22, blades 31a to 34a, 31b to 34b which are expanded in a state where the opening 22 is closed and which overlap one another in a state where the opening 22 is opened, and a first regulating portion 23A and a second regulating portion 24A integrally formed with the partition plate 21, on which the blades 31a, 31b abut when being expanded. An optical apparatus includes the blade drive device 10.
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公开(公告)号：US09069231B2
公开(公告)日：2015-06-30
申请号：US14291717
申请日：2014-05-30
Applicant: SEIKO PRECISION INC.
Inventor： Seiichi Oishi , Minori Murata , Hiroshi Takahashi , Shoichi Tokura
CPC classification number: G03B9/40
Abstract: A focal plane shutter includes: a board including an opening; a shutter opening and closing the opening; a drive source driving the shutter; a drive lever driven by the drive source; a drive arm connected to the drive lever and driving the shutter; a restriction portion defining a stop position of the drive lever; and a buffering member elastically deformable, wherein, when the drive lever drives, abuts the restriction portion, and stops, at least one of the drive arm and the shutter temporarily abuts the buffering member, is spaced from the buffering member, and stops.
Abstract translation: 焦平面快门包括：包括开口的板; 打开和关闭开口的快门; 驱动快门的驱动源; 由驱动源驱动的驱动杆; 连接到所述驱动杆并驱动所述活门的驱动臂; 限定部分限定驱动杆的停止位置; 以及可弹性变形的缓冲构件，其中，当所述驱动杆驱动时，抵靠所述限制部并停止，所述驱动臂和所述闸板中的至少一个暂时抵靠所述缓冲构件，与所述缓冲构件间隔开并停止。
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公开(公告)号：US08882370B2
公开(公告)日：2014-11-11
申请号：US14175280
申请日：2014-02-07
Applicant: Seiko Precision Inc.
Inventor： Seiichi Oishi , Shoichi Tokura
IPC: G03B9/08
CPC classification number: G03B9/36
Abstract: A focal plane shutter includes: a board including an opening; a blade opening or closing the opening; an electromagnet including an iron core and a coil for energizing the iron core; and a drive lever holding an iron piece capable of being adsorbed to the iron core, capable of moving such that iron piece is moved into and away from the iron core, and driving the blade, wherein a plating process is performed on the iron core and the iron piece, a Vickers hardness of a plating of the iron piece is greater than that of a plating of the iron core, and a difference in the Vickers hardness between the plating of the iron piece and the plating of the iron core is 100 HV or more.
Abstract translation: 焦平面快门包括：包括开口的板; 打开或关闭开口的刀片; 包括铁芯和用于激励铁芯的线圈的电磁体; 以及驱动杆，其保持能够被吸附到铁芯上的铁片，能够移动以使铁片移入和离开铁芯，并驱动该刀片，其中对铁芯进行电镀处理， 铁片，铁片的电镀的维氏硬度大于铁芯电镀的维氏硬度，铁片的镀层与铁芯的镀层之间的维氏硬度差为100HV 或者更多。
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公开(公告)号：US09612505B2
公开(公告)日：2017-04-04
申请号：US15221145
申请日：2016-07-27
Applicant: SEIKO Precision Inc.
Inventor： Seiichi Oishi , Shoichi Tokura
Abstract: A focal-plane shutter capable of preventing deterioration of the quality of a captured image is provided. A focal-plane shutter includes a base plate having an opening, a rear curtain that moves between an open position where the opening is open and a closed position where the opening is closed to allow the opening to be open and closed, and a first cushioning member that comes into contact with the rear curtain, and the rear curtain has a first protrusion that is located outside the opening, protrudes in a first direction from the open position toward the closed position, and comes into contact with the first cushioning member when the rear curtain moves from the open position to the closed position.
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Patent Agency Ranking
公开(公告)号：US09606421B2
公开(公告)日：2017-03-28
申请号：US15088589
申请日：2016-04-01
Applicant: SEIKO PRECISION INC.
Inventor： Seiichi Oishi , Hiroshi Takahashi , Shoichi Tokura
Abstract: A focal-plane shutter includes: a board including an opening; a shutter opening and closing the opening; a drive lever provided with a drive pin and swinging; a drive arm provided with an engagement hole engaged with the drive pin, swinging about a center same as a swing center of the drive lever, driving the shutter, and made of a synthetic resin; and a restriction portion defining a swinging range of the drive lever.
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公开(公告)号：US09507240B2
公开(公告)日：2016-11-29
申请号：US14470400
申请日：2014-08-27
Applicant: SEIKO PRECISION INC.
Inventor： Hiroshi Takahashi , Shoichi Tokura , Chiaki Nemoto , Yoichi Nakano
Abstract: A blade drive device includes: a board including an opening; first and second blades opening and closing the opening; and first and second actuators arranged adjacent to each other and respectively driving the first and second blades, wherein the first and second actuators respectively include first and second stators, first and second rotors, and first and second coils, and the first and second rotors is arranged to sandwich at least one of the first and second coils.
Abstract translation: 刀片驱动装置包括：包括开口的板; 第一和第二叶片打开和关闭开口; 以及第一和第二致动器，彼此相邻并且分别驱动第一和第二叶片，其中第一和第二致动器分别包括第一和第二定子，第一和第二转子以及第一和第二线圈，并且第一和第二转子是 布置成夹持第一和第二线圈中的至少一个。
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公开(公告)号：US09395599B2
公开(公告)日：2016-07-19
申请号：US14626014
申请日：2015-02-19
Applicant: SEIKO PRECISION INC.
Inventor： Seiichi Oishii , Shoichi Tokura
Abstract: A focal plane shutter includes: a first board including a first opening; a first shutter including plural first blades, and facing the first board and closing the first opening such that an overlapped state where the plural first blades overlap each other is shifted to an expanded state where the plural first blades expand; and a drive member connected to a root portion of the first shutter and causing the first shutter to move.
Abstract translation: 焦平面快门包括：第一板，包括第一开口; 第一挡板，其包括多个第一叶片，并且面向第一板并且关闭第一开口，使得多个第一叶片彼此重叠的重叠状态转移到多个第一叶片膨胀的展开状态; 以及驱动构件，其连接到所述第一活门的根部并使所述第一活门移动。
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公开(公告)号：US08807853B2
公开(公告)日：2014-08-19
申请号：US14023734
申请日：2013-09-11
Applicant: Seiko Precision Inc.
Inventor： Hiroshi Takahashi , Minori Murata , Chiaki Nemoto , Shoichi Tokura
IPC: G03B9/08
Abstract: A focal plane shutter includes: a board including an opening; a leading blade and a trailing blade opening and closing the opening; first and second drive members respectively driving the leading blade and the trailing blade; first and second actuators respectively driving the first and second drive members; a first biasing member biasing the first drive member to move the leading blade away from the opening; and a second biasing member biasing the second drive member to move the trailing blade away from the opening.
Abstract translation: 焦平面快门包括：包括开口的板; 前刀片和后刀片，打开和关闭开口; 第一和第二驱动构件分别驱动前刀片和后刀片; 分别驱动第一和第二驱动构件的第一和第二致动器; 偏置所述第一驱动构件以使所述前刀片远离所述开口的第一偏置构件; 以及偏置所述第二驱动构件以使所述后叶片远离所述开口移动的第二偏置构件。
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公开(公告)号：US10101635B2
公开(公告)日：2018-10-16
申请号：US15050954
申请日：2016-02-23
Applicant: SEIKO Precision Inc.
Inventor： Seiichi Oishi , Shoichi Tokura
Abstract: To provide a blade drive device capable of suppressing variations in movement speed of blades at the time of continuous operation and shortening the operation interval of blades. A blade drive device 10 includes a bed plate 11 having an opening 12, a blade receiving plate 15 arranged so as to face the bed plate 11, a plurality of blades 31b to 34b provided between the bed plate 11 and the blade receiving plate 15, which are expanded in a state where the opening 12 is closed and are housed while overlapping one another in a state where the opening 12 is opened and a regulating member 80 having an abutting surface 82 on which side edge portions 31b1 to 34b1 of the blades 31b to 34b abut when the blades are housed. The abutting surface 82 is an inclined surface 83 inclined to the bed plate 11 side as it goes from the bed plate 11 side to the blade receiving plate 15 side.
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