公开(公告)号：US20140157926A1

公开(公告)日：2014-06-12

申请号：US14098360

申请日：2013-12-05

Applicant: NIDEC COPAL CORPORATION

Inventor： Keisuke FUJISAWA

IPC: F16H1/06

CPC classification number: F16H1/06 ,  F16D7/002 ,  F16D7/048 ,  F16H35/10 ,  Y10T74/19679

Abstract: A geared motor reduces a speed of rotation of a DC motor with a gear train and outputs the rotation to the outside. The gear train includes a second gear including a cylindrical portion a third gear a first insertion portion that is inserted in the cylindrical portion the second gear. The second gear and the third gear are made of a resin material. A projecting-and-recessed portion is provided on an inner peripheral surface of the cylindrical portion of the second gear. The projecting-and-recessed portion extends continuously in a circumferential direction over the entire circumference of the inner peripheral surface of the cylindrical portion. Pressing portions are evenly arranged in the circumferential direction on an outer peripheral surface of the first insertion portion of the third gear. The pressing portions are configured enter recesses in the projecting-and-recessed portion and press wall surfaces of the recesses.

Abstract translation: 齿轮传动马达降低带有齿轮系的直流电机的转速，并将旋转输出到外部。 齿轮系包括：第二齿轮，包括圆柱形部分和第三齿轮，第一插入部分插入圆柱形部分中的第二齿轮。 第二齿轮和第三齿轮由树脂材料制成。 在第二齿轮的圆筒部的内周面设有突出凹部。 突出凹部在圆筒部的内周面的整个圆周上沿圆周方向连续延伸。 在第三齿轮的第一插入部的外周面上，沿圆周方向均匀地设置有按压部。 按压部分被配置成在凹入部分中进入凹部并且压迫凹部的壁表面。