| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a problem that a tricycle runs by human power and thus reduction in the size and weight of each component thereof is required, and in a manufacturing company of the tricycle, it is inefficient to manufacture a differential device after receiving the designation of a shaft for corresponding to different length of an axle, depending on a positional relationship between a wheel width differential device and a motive power device. <P>SOLUTION: A sun device is to be smallest, and for this, device cutting is directly performed to the axle. Then, the sun device is formed by directly performing device cutting to the axle, the axle is freely inserted and pulled into/from a housing, and a detachable stopper is disposed at the end of the housing, which sets the position of the axle in an axial direction. For a differential device body, only a planetary device is incorporated into the housing. The axle is made optional. Thereby, the differential device having no axle, in which only the planetary device is incorporated into the housing, is manufactured, thus reducing the manufacturing cost. <P>COPYRIGHT: (C)2012,JPO&INPIT |
