| 摘要 |
A power transmission system for a working machine, wherein drive power is transmitted from an engine (15) to a work-tool holding drive shaft (16a) via a reduction mechanism (20) is provided. The reduction mechanism includes an input shaft (21) having a first gear (24), and an output shaft (30) having a second gear (25). The second gear has a gear portion (26) and a cylindrical boss segment (27) press fitted thereto, forming a torque limiter (55). As a result, the reduction mechanism, which has the torque limiter, has a simplified structure, enabling easy assemblage. <IMAGE> |
