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1. 发明授权

US5475459A Blade type focal plane shutter with improved arm construction 失效
标题翻译：具有改进臂结构的刀片式焦平面快门
公开(公告)号：US5475459A
公开(公告)日：1995-12-12
申请号：US365183
申请日：1994-12-28
申请人： Takashi Matsubara , Masayuki Kanamuro , Masanori Hasuda
发明人： Takashi Matsubara , Masayuki Kanamuro , Masanori Hasuda
IPC分类号： G03B9/36 , G03B9/18 , G03B9/40
CPC分类号： G03B9/18
摘要： A blade type focal plane shutter is designed to decrease the shutter charge energy and to improve the durability of the shutter without decreasing the impact resistance of the main arms of the shutter. The shutter may comprise a shutter base plate having an aperture; shutter blades each composed of a plural number of blade segments and a driving mechanism having main arms and follower arms rotatably connected to the shutter base plate and blade segments as to form a parallel link mechanism, the main arms having pin-receiving holes in which driving pins are engaged respectively. Through the driving pins, the driving mechanism is able to move the blade segments between the aperture opening position in which the blade segments are folded up outside the aperture and the aperture closing position in which the blade segments are expanded to cover the aperture. The follower arms are decreased in rigidity and/or impact resistance or in thickness relative to the main arms.
摘要翻译：刀片式焦平面快门被设计为降低快门充电能量并且提高快门的耐用性，而不会降低快门的主臂的抗冲击性。快门可以包括具有孔的快门底板; 闸板叶片各自由多个叶片段构成，驱动机构具有可旋转地连接于闸板基板和叶片段的主臂和随动臂，以形成平行连杆机构，主臂具有销接收孔，驱动引脚分别接合。通过驱动销，驱动机构能够在叶片段在孔的外部折叠的孔开口位置和叶片段膨胀以覆盖孔的孔关闭位置之间移动叶片段。从动臂相对于主臂的刚性和/或抗冲击性或厚度降低。

2. 发明授权

US5467160A Focal-plane shutter device 失效
标题翻译：焦平面快门装置
公开(公告)号：US5467160A
公开(公告)日：1995-11-14
申请号：US258497
申请日：1994-06-10
申请人： Takashi Matsubara , Masayuki Kanamuro , Masanori Hasuda
发明人： Takashi Matsubara , Masayuki Kanamuro , Masanori Hasuda
IPC分类号： G03B9/18 , G03B9/40
CPC分类号： G03B9/18
摘要： The present invention aims at improving the durability of a very high-speed shutter exceeding 1/8000 sec and further attaining a very high shutter speed even with sectors composed of a material exhibiting a low rigidity. For this purpose, a focal plane shutter device comprises: first and second blinds each constructed of a plurality of sectors; and a light shielding plate having an opening and an intermediate plate disposed between the first blind and the second blind. The first and second blinds are run in the facial direction of the light shielding plate so as to cover and expose the opening. The light shielding plate and the intermediate plate are bonded, or a shock absorbing member is interposed between these two plates.
摘要翻译：本发明的目的在于提高非常高速百叶窗的耐久性，超过1/8000秒，即使由表现出低刚性的材料构成的扇区，进一步获得非常高的快门速度。为此，焦平面快门装置包括：由多个扇区构成的第一和第二百叶窗; 以及遮光板，其具有开口和设置在所述第一盲孔和所述第二盲孔之间的中间板。第一和第二百叶窗在遮光板的面向上运行以覆盖和暴露开口。遮光板和中间板被接合，或者在这两个板之间插入减震构件。

3. 发明授权

US5543880A Friction member for brake mechanism in camera shutter 失效
标题翻译：相机快门制动机构的摩擦部件
公开(公告)号：US5543880A
公开(公告)日：1996-08-06
申请号：US458754
申请日：1995-06-02
申请人： Takashi Matsubara , Masanori Hasuda , Masayuki Kanamuro
发明人： Takashi Matsubara , Masanori Hasuda , Masayuki Kanamuro
IPC分类号： G03B9/36 , G03B9/00 , G03B9/18 , G03B9/08
CPC分类号： G03B9/18 , G03B9/00
摘要： A friction member for a brake mechanism in a camera shutter is comprised of a layer-laminated body which is formed by laminating a plurality of resin layers each reinforced with carbon fibers aligned one-directionally in such a manner that the directions of the carbon fibers are crossing, for generating a frictional force to brake a member to be braked by coming in contact with the member to be braked. The thickness of the layer-laminated body is 50 .mu.m to 200 .mu.m, and the surface resin layer of the layer-laminated body contains 35 to 75 wt % of the carbon fiber.
摘要翻译：用于相机快门中的制动机构的摩擦构件由层叠体构成，层叠体通过层叠多个树脂层而形成，所述树脂层各自用碳纤维增强，碳纤维以单向排列，使得碳纤维的方向为用于产生摩擦力以通过与待制动的构件接触来制动待制动的构件。层叠体的厚度为50μm〜200μm，层叠体的表面树脂层含有35〜75重量％的碳纤维。

4. 发明授权

US5371565A Focal-plane shutter device 失效
标题翻译：焦平面快门装置
公开(公告)号：US5371565A
公开(公告)日：1994-12-06
申请号：US196789
申请日：1994-02-15
申请人： Takashi Matsubara , Masayuki Kanamuro , Masanori Hasuda
发明人： Takashi Matsubara , Masayuki Kanamuro , Masanori Hasuda
IPC分类号： G03B9/18 , G03B9/40
CPC分类号： G03B9/18
摘要： The present invention aims at improving the durability of a very high-speed shutter exceeding 1/8000 sec and further attaining a very high shutter speed even with sectors composed of a material exhibiting a low rigidity. For this purpose, a focal plane shutter device comprises: first and second blinds each constructed of a plurality of sectors; and a light shielding plate having an opening and an intermediate plate disposed between the first blind and the second blind. The first and second blinds are run in the facial direction of the light shielding plate so as to cover and expose the opening. The light shielding plate and the intermediate plate are bonded, or a shock absorbing member is interposed between these two plates.
摘要翻译：本发明的目的在于提高非常高速百叶窗的耐久性，超过1/8000秒，即使由表现出低刚性的材料构成的扇区，进一步获得非常高的快门速度。为此，焦平面快门装置包括：由多个扇区构成的第一和第二百叶窗; 以及遮光板，其具有开口和设置在所述第一盲孔和所述第二盲孔之间的中间板。第一和第二百叶窗在遮光板的面向上运行以覆盖和暴露开口。遮光板和中间板被接合，或者在这两个板之间插入减震构件。

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