To solve the problem in a transaxle configured to transmit power from a drive source of a working vehicle from a frictional transmission device to an axle in which heating of a frictional engagement portion or the like is increased when a rotating direction is suddenly reversed in forward-backward switching due to pressurization between a drive-side rotary disk and a driven-side rotary disk.
The frictional transmission device 22 includes: an input shaft 38, the drive-side rotary disk 44 supported on the input shaft, an output shaft 39 disposed orthogonally to the input shaft 38; and the driven-side rotary disk whose peripheral portions 45a, 46a are frictionally engaged with the disk 44 while supporting an output shaft 39. The driven-side rotary disk is composed of a forward disk 45 located on the left side across a rotating axis 38a and a backward disk 46 located on the right side and rotating in a direction opposite to the forward disk 45. The backward disk 46 and the forward disk 45 are disposed on the output shaft 39 in an idling manner. The device further includes a disk switching transmission mechanism 23 which engages the output shaft 39 with one of the forward disk 45 and backward disk 46.
MIYAKE ETSUO
NISHIZAWA HISAFUMI
