Patent ID: 7568531

Claim:
A gear transmission device comprising: a first rotation mechanism including an input shaft having a rotation axis and a drive gear rotated integrally with the input shaft; a second rotation mechanism including an output shaft rotated coaxially relative to the input shaft and a driven gear driven by the drive gear and rotated integrally with the output shaft; a support attached to the input shaft of the first rotation mechanism and rotated integrally with the input shaft; a socket, attached to the output shaft of the second rotation mechanism and rotated integrally with the output shaft, the socket being affanged between the support and the output shaft and including a hollow portion for rotatably receiving the support; a bushing fitted to the hollow portion of the socket and to the support with a fit tolerance corresponding to a running fit so that the support is moveable relative to the bushing; and wherein the input shaft includes a distal portion, and the output shaft includes a basal portion facing towards the distal portion of the input shaft, the support being defined by a cap member arranged on the distal portion of the input shaft, and the socket being formed in the basal portion of the output shaft.