Patent ID: 7883422
Filing Date: 2011-02-08
Classification: B60K,B60Y,B62M,F16F

Abstract:
1. A damper mechanism of a shaft-drive-type power transmission device of a vehicle, the shaft-drive-type power transmission device comprising an output shaft extending from an engine of the vehicle, an input shaft connected to a final reduction gear, and a propeller shaft between the output shaft and the input shaft, said damper mechanism being provided in a power transmission path from the engine of the vehicle to the final reduction gear of the vehicle, said damper mechanism transmitting a torque from the engine or a wheel of the vehicle until the torque reaches a predetermined value, and said damper mechanism preventing the transmission of a torque that exceeds the predetermined value, wherein the damper mechanism has a first end connected to the propeller shaft, and a second end locked to one of the output shaft and the input shaft by a nut within the damper mechanism, the second end being opposite to the first end, the first end being closer to the propeller shaft than to the one of the output shaft and the input shaft, the second end being closer to the one of the output shaft and the input shaft than to the propeller, wherein the nut is located at the second end farther from the propeller shaft than from the one of the output shaft and the input shaft, and the nut is located at a distal end of a shaft member of the one of the output shaft and the input shaft and is aligned with the shaft member of the one of the output shaft and the input shaft, wherein the damper mechanism further comprises: wherein the outer sleeve is locked to the one of the output shaft and the input shaft by the nut inside the outer sleeve, and wherein the nut is located at an end of the outer sleeve closer to the engine when the outer sleeve is locked to the output shaft, and is located at an end of the outer sleeve closer to the final reduction gear when the outer sleeve is locked to the input shaft, and wherein the nut does not overlap with the cylindrical resilient members in an axial direction of the damper mechanism.