| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reduction gear which generates booming sound. <P>SOLUTION: This reduction gear for an automobile includes: an input shaft connected to a motor; an input gear coupled to the input shaft; an output gear engaged with the input gear; and a motor to which the rotating force of the output gear is transmitted for controlling the speed of the automobile. The reduction gear further includes an unbalance drive gear formed on the input shaft at a specified interval from the input gear, an unbalance driven gear engaged with the unbalance drive gear, and an unbalance module which is connected to the unbalance driven gear and comprises an unbalance mass. The unbalance module includes an unbalance shaft connected to the unbalance driven gear, an unbalance mass adhered to one side of the unbalance shaft, and a bearing which is formed on the outer peripheral surface of the unbalance shaft and supports the unbalance shaft. <P>COPYRIGHT: (C)2012,JPO&INPIT |
