Patent ID: 8561490
Filing Date: 2013-10-22
Classification: B60K,B60Y,F16H,Y10T

Abstract:
1. A power take-off device for a tractor, the device comprising: an output shaft including a power take-off shaft; a drive interposed between the output shaft and a first input shaft and a second input shaft rotating at different angular speeds; the drive comprising a selector for connecting the output shaft selectively to the first input shaft and the second input shaft, such that the output shaft when connected to the first input shaft rotates at a first angular speed or a second angular speed, and, when the output shaft is connected to the second input shaft, rotates at a third angular speed which is different from the first angular speed and the second angular speed; and wherein the selector is configured to move between at least three speed settings and two neutral positions, corresponding from left to right, to the first angular speed of a first speed setting, a first neutral position, the second angular speed of a second speed setting, a second neutral position, and the third angular speed of a third speed setting of the output shaft, respectively, wherein the drive comprises a hollow shaft and an inner shaft rotating freely inside the hollow shaft, wherein the hollow shaft and inner shaft are coaxial with each other and with the first input shaft, and wherein the hollow shaft has external teeth at one end facing the first input shaft, and the hollow shaft is fitted at the opposite end with a first gear meshing with a second gear fitted to the output shaft.