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11. 发明授权

US06189395B1 Change gear transmission device and scanner employing such device 有权
标题翻译：更换齿轮传动装置和使用这种装置的扫描仪
公开(公告)号：US06189395B1
公开(公告)日：2001-02-20
申请号：US09372620
申请日：1999-08-12
申请人： Pen-Jung Lee
发明人： Pen-Jung Lee
IPC分类号： H04N110
CPC分类号： H04N1/0414 , H04N1/0402 , H04N1/0443 , H04N1/0455 , H04N1/1017 , H04N1/1026 , H04N1/1043 , Y10T74/19237 , Y10T74/19307
摘要： A change gear transmission device for a scanner comprises a motor, a first gear, a second gear and a third gear. The second gear and the third gear are movably arranged within the scanner and can be moved in axial direction. The first gear is coaxially connected with the motor. The second gear and the third gear are arranged on one end of the driving shaft of the scanner and have different tooth number. The first gear is optionally engaged with the second gear or the third gear by the movement of the second gear and the third gear. In a preferred embodiment of the device, the second gear is a spur gear and the third gear is an indent gear (ring gear). Therefore, the inventive change gear transmission device can provide both high speed and high accuracy ability to the scanner with low/high resolution.
摘要翻译：用于扫描仪的变速传动装置包括马达，第一齿轮，第二齿轮和第三齿轮。第二齿轮和第三齿轮可移动地布置在扫描器内并且可以在轴向方向上移动。第一档与电动机同轴连接。第二齿轮和第三齿轮布置在扫描器的驱动轴的一端上并具有不同的齿数。第一齿轮可选地通过第二齿轮和第三齿轮的运动与第二齿轮或第三齿轮接合。在装置的优选实施例中，第二档是正齿轮，第三档是缩进齿轮（齿圈）。因此，本发明的变速传动装置能够以低/高分辨率为扫描仪提供高速度和高精度的能力。

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