公开(公告)号：US06535305B1

公开(公告)日：2003-03-18

申请号：US09481402

申请日：2000-01-12

Applicant: Tsang-Huai Chang ,  Po-Hua Fang

Inventor： Tsang-Huai Chang ,  Po-Hua Fang

IPC: H04N104

CPC classification number: H04N1/1021 ,  H04N1/1013 ,  H04N2201/0428

Abstract: A transmission mechanism for optical scanner includes a screw bar, a first nut, a second nut, a retainer, a first spring and a second spring. The screw bar has external threads engageable with internal threads of the first and second nuts. The first nut is close to the transmission direction. The retainer is hollow and has a front and a rear wall to hold the first and second nut therebeween. The first nut makes contact with the front wall. The first spring is located between the first and second nut. The second spring has a stronger force than the first spring and is located between the second nut and the rear wall. The spring force keeps the rear side of the internal threads of the first nut make close contact with external threads of the screw bar, and the front side of the internal threads of the second nut make close contact with the external threads so that the first and second nut may be free from vibration during transmission operation.

Abstract translation: 用于光学扫描器的传输机构包括螺杆，第一螺母，第二螺母，保持器，第一弹簧和第二弹簧。 螺杆具有可与第一和第二螺母的内螺纹啮合的外螺纹。 第一个螺母接近传动方向。 保持器是中空的并且具有前壁和后壁以保持第一和第二螺母。 第一个螺母与前壁接触。 第一弹簧位于第一和第二螺母之间。 第二弹簧具有比第一弹簧更强的力并且位于第二螺母和后壁之间。 弹簧力保持第一螺母的内螺纹的后侧与螺杆的外螺纹紧密接触，并且第二螺母的内螺纹的前侧与外螺纹紧密接触，使得第一和 第二螺母在传动操作期间可能没有振动。

公开(公告)号：US06525503B2

公开(公告)日：2003-02-25

申请号：US09740484

申请日：2000-12-19

Applicant: Po-Hua Fang

Inventor： Po-Hua Fang

IPC: G06G300

CPC classification number: H04N1/1026 ,  H04N1/1013

Abstract: A drive mechanism for a scannerincludes a delivery device, a first rotational speed motor and a second rotational speed motor. The delivery device consists of an actuating wheel, a passive wheel and a conveyor belt. The conveyor belt is carried by the actuating wheel and the passive wheel, and the axes of the passive wheels are attached to two ends of the inner side diameter of the actuating wheel. The output shaft of the first rotational speed motor is provided with an actuating skew gear that engages two passive skew gears. The output shaft of the second rotational speed motor is also provided with an actuating skew gear that engages two passive skew gears. The drive mechanism uses the two motors to drive the two passive skew gears so as to better control the rotational speed and to scan the document image.

Abstract translation: 用于扫描仪的驱动机构包括输送装置，第一转速马达和第二转速马达。 输送装置由致动轮，被动轮和输送带组成。 传送带由致动轮和被动轮承载，被动轮的轴线连接到致动轮的内侧直径的两端。 第一转速电动机的输出轴设有与两个被动偏斜齿轮啮合的致动斜齿轮。 第二转速电动机的输出轴还具有接合两个被动偏斜齿轮的致动斜齿轮。 驱动机构使用两个电动机来驱动两个被动偏斜齿轮，以便更好地控制转速并扫描文档图像。