| 摘要 |
The invention provides a construction of a case of transmission, the construction can improve rigidity of a case and reduce sound vibration. The case (22) of a transmission receives a speed-changing mechanism (30), wherein, the case (22) is provided with a first bearing part (61) of a first rotary shaft (31) supporting the speed-changing mechanism (30) and a second bearing part (62) of a second rotary shaft (32) supporting the speed-changing mechanism (30), the case construction is provided with a reinforcing rib (66a), the reinforcing rib (66a) is disposed on a line connecting the center of the first rotary shaft (31) and the center of the second rotary shaft (32), and is installed at the outer wall apart from the case (22) between the first bearing part (61) and the second bearing part (62) and facing the outer wall. |
