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1. 发明授权

US4075900A Two-speed video recorder 失效
标题翻译：双速录像机
公开(公告)号：US4075900A
公开(公告)日：1978-02-28
申请号：US676111
申请日：1976-04-12
申请人： Henry John Hattendorf
发明人： Henry John Hattendorf
IPC分类号： F16H9/06 , G11B15/44 , B65H17/22
CPC分类号： F16H9/06 , G11B15/44
摘要： The specification discloses a video recorder having two recording speeds. The recorder includes a capstan for moving video tape past a recording head. A drive pulley is rotated at a predetermined drive speed. The pulley is movable between retracted and extended positions and has a small diameter portion and a large diameter portion. A belt engages the drive pulley in order to drive the capstan. A solenoid is provided to move the drive pulley between the retracted and extended positions, such that the belt alternatively engages the small and the large diameter portions in order to vary the speed of the capstan.
摘要翻译：本说明书公开了具有两个记录速度的录像机。记录器包括用于将录像带移动经过记录头的绞盘。驱动滑轮以预定的驱动速度旋转。滑轮可在缩回位置和延伸位置之间移动，并且具有小直径部分和大直径部分。皮带接合驱动皮带轮以驱动绞盘。提供螺线管以使驱动滑轮在缩回位置和伸出位置之间移动，使得带交替地接合小直径部分和大直径部分，以便改变绞盘的速度。

2. 发明授权

US4062248A Two-speed video recorder 失效
标题翻译：双速录像机
公开(公告)号：US4062248A
公开(公告)日：1977-12-13
申请号：US728114
申请日：1976-09-30
申请人： Henry John Hattendorf
发明人： Henry John Hattendorf
IPC分类号： F16H9/06 , G11B15/44 , F16H9/00 , F16H15/00
CPC分类号： F16H9/06 , G11B15/44
摘要： The specification discloses a video recorder having two recording speeds. The recorder includes a capstan pulley for moving video tape past a recording head and a drive pulley rotated at a predetermined drive speed. A speed change assembly is interconnected between the drive and capstan pulleys and is operable to selectively change the recording speed of the video tape recorder. The speed change assembly includes a first shaft including first and second pulleys. A second shaft is provided and includes a first and second pulley, the first pulley of the second shaft having a smaller diameter than the first pulley of the first shaft. A solenoid is provided to move the first and second shafts between a first and second position, such that in the first position the first pulley of the first shaft engages the drive pulley and the second pulley of the second shaft engages the capstan pulley. In the second position, the first pulley of the second shaft engages the drive pulley and the second pulley of the first shaft engages the capstan pulley.
摘要翻译：本说明书公开了具有两个记录速度的录像机。记录器包括用于将录像带移动经过记录头的主导轮和以预定驱动速度旋转的驱动皮带轮。变速组件在驱动器和主导带轮之间互连，并且可操作以选择性地改变录像机的记录速度。变速组件包括包括第一和第二滑轮的第一轴。第二轴被设置并且包括第一和第二滑轮，第二轴的第一滑轮具有比第一轴的第一滑轮更小的直径。提供螺线管以在第一和第二位置之间移动第一和第二轴，使得在第一位置中，第一轴的第一滑轮接合驱动滑轮并且第二轴的第二滑轮接合主动轮滑轮。在第二位置，第二轴的第一滑轮接合驱动滑轮并且第一轴的第二滑轮接合主导滑轮。

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