| 摘要 |
PROBLEM TO BE SOLVED: To reduce cost of a gear transmission and improve reduction effects of impact and impulsive sound during transmission by a buffer structure including an elastic engagement part provided in an engagement clutch in the gear transmission. SOLUTION: The engagement clutch 31 of the transmission has a plurality of gear side engagement parts 38 provided in a transmission gear 11b and a plurality of shifter side engagement parts 39 provided in a shifter 21. The gear side engagement part 38 includes: the elastic engagement part B having an elastic part 80 formed of an elastic material; and a rigid engagement part A having rigidity larger than that of the elastic engagement part B. The elastic engagement parts B are arranged, so that the gear side engagement parts 38 as the elastic engagement parts B and the shifter side engagement parts 39 as the rigid engagement parts A are made to abut on each other to elastically deform the elastic engagement parts B and then, the gear side engagement parts 38 and the shifter side engagement parts 39 both of which serve as the rigid engagement parts A are made to abut on each other, until the shifter 21 operated by a transmission operation device 26 is moved to the axial direction and the engagement clutch 31 becomes an engagement completion state. COPYRIGHT: (C)2010,JPO&INPIT
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