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1. 发明申请

US20020172519A1 Focal-plane shutter for cameras 失效
标题翻译：摄像机的焦平面快门
公开(公告)号：US20020172519A1
公开(公告)日：2002-11-21
申请号：US10139245
申请日：2002-05-07
申请人： NIDEC COPAL CORPORATION
发明人： Shigemi Takahashi , Yuichirou Usuda
IPC分类号： G03B009/40
CPC分类号： G03B9/18
摘要： A focal-plane shutter for cameras is provided with a single blade chamber between two base plates, each having an aperture for exposure at about the middle thereof, or two blade chambers into which the single blade chamber is partitioned between the two base plates by an intermediate plate having an aperture for exposure at about the middle thereof. A shutter blade group placed in each of the blade chambers is constructed with a plurality of arms whose ends are pivotally mounted to one of the two base plates on the side of the aperture and at least one blade pivotally supported by the arms through individual joint shanks so that working paths of the joint shanks does not run inside the apertures of the base plates. In addition, a wall is provided on at least one of the two base plates so as to project toward the blade chamber side, between the aperture provided in one of the two base plates and the working region of the arms, along the edge of the aperture, and has an inclined face directed toward the aperture of an opposite base plate.
摘要翻译：用于相机的焦平面快门在两个基板之间设置有单个叶片室，每个底板具有用于在其中部附近暴露的孔或两个叶片室，单个叶片室在两个基板之间通过一个中间板具有在其中部附近暴露的孔。放置在每个叶片室中的快门叶片组被构造成多个臂，其端部枢转地安装到孔的侧面上的两个基板中的一个，并且至少一个叶片由臂枢转地支撑通过单独的接头柄使得接合柄的工作路径不在基板的孔内延伸。此外，在两个基板中的至少一个基板上设置壁，以沿着刀片室侧的边缘朝向设置在两个基板中的一个中的孔和臂的工作区域之间突出并且具有朝向相对基板的孔的倾斜面。

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