Patent ID: 8499657
Filing Date: 2013-08-06
Classification: F16H,Y10T

Abstract:
1. A multi-shaft transmission mounted on a work vehicle for performing loader work, the transmission comprising: an input shaft to which power is inputted; an output shaft connected to wheels of the work vehicle; at least one countershaft disposed between the input shaft and the output shaft; a power transmission mechanism configured and arranged to transmit power from the input shaft through the countershaft to the output shaft; and a shifting part configured and arranged to shift a drivetrain from the input shaft to the output shaft; wherein, the power transmission mechanism includes a forward clutch and a reverse clutch for forward-reverse shifting, and a first clutch, a second clutch, and a third clutch for changing speed stages, wherein the forward clutch has a first forward clutch and a second forward clutch for shifting speed regions, and the shifting part renders: the first forward clutch and the first clutch to a power transmission state, and the other clutches to a power shutoff state in a forward first gear; the first forward clutch and the second clutch to the power transmission state, and the other clutches to the power shutoff state in a forward second gear; the second forward clutch and the second clutch to the power transmission state, and the other clutches to the power shutoff state in a forward third gear; the first forward clutch and the third clutch to the power transmission state, and the other clutches to the power shutoff state in a forward fourth gear; the second forward clutch and the third clutch to the power transmission state, and the other clutches to the power shutoff state in a forward fifth gear; the reverse clutch and the first clutch to the power transmission state, and the other clutches to the power shutoff state in a reverse first gear; the reverse clutch and the second clutch to the power transmission state, and the other clutches to the power shutoff state in a reverse second gear; and the reverse clutch and the third clutch to the power transmission state, and the other clutches to the power shutoff state in a reverse third gear.