| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a grease leakage preventing structure for a unit type gear device equipped with a rocking gear device, enabling to prevent grease leakage from the rocking gear device to the opening side of an input unit without providing an oil seal in the input unit for contacting an input shaft. <P>SOLUTION: On the end face of the input unit 3 of the unit type gear device 1 at the side of an output unit 2, there are a grease reservoir groove 60a which is annularly provided around a rotational axis 1a on the side of the rotational axis 1a of a rocking generator 40 beyond an engaging position between a rigid internal gear 20 and a flexible external gear 30 of the rocking gear device 10, and a grease leakage preventing wall 60b which is annularly provided around the rotational axis 1a on the side of the rotational axis 1a beyond the grease reservoir groove 60a. The top of the grease leakage preventing wall 60b is located adjacent to an eccentric roller 41 of the rocking generator 40. <P>COPYRIGHT: (C)2010,JPO&INPIT |
