| 摘要 |
<P>PROBLEM TO BE SOLVED: To shorten a length of an inscribed planetary gear type speed reducer in a rotation axial line direction. <P>SOLUTION: A crank member 22 is interposed between a through-hole 58 of an outer tooth gear 20a and a through-hole 59 of an outer tooth gear 20b, and a support shaft 24. In the crank member 24, there are formed an eccentric disk part 25 fitted into the through-hole 58 of the outer tooth gear 20a and an eccentric disk part 27 fitted into the through-hole 59 of the outer tooth gear 20b. Between the support shaft 24 and the crank member 22, a bearing 26 is disposed and supports the crank member 22 so as to rotate around the support shaft 24. By shortening a length of the crank member 22 other than the eccentric disk parts 25, 27, a length of a speed reducer in a rotation axial line direction is shortened. <P>COPYRIGHT: (C)2013,JPO&INPIT |
