Transfer device for four-wheel drive vehicle

A transfer device of a vehicle, comprising:

• an input shaft configured to receive an output torque of a drive source at an axial first side of the input shaft in axial directions thereof;
• a main-wheel output part provided on an axial second side of the input shaft and configured to output the output torque of the drive source to main drive wheels, the axial second side being opposite from the axial first side in the axial directions;
• an auxiliary-wheel output shaft provided in parallel to the input shaft and configured to output the output torque of the drive source to auxiliary drive wheels;
• a coupling provided on the input shaft and configured to extract a part of the output torque that is outputted to the auxiliary drive wheels;
• a drive member having a hollow section and provided on the input shaft;
• and
• a driven member provided on the auxiliary-wheel output shaft and meshed with the drive member,
• wherein the drive member includes a first-side extension part and a second-side extension part extending to the axial first side and the axial second side in axial directions, respectively,
• wherein the drive member is supported to a transfer case via a drive member bearing provided between the first-side extension part and the transfer case, and another drive member bearing provided between the second-side extension part and the transfer case,
• wherein a coupling part is fitted to an inner circumferential side of the second-side extension part of the drive member and coupled to the drive member, the coupling part being provided to the coupling,
• wherein a damper device is disposed between the coupling and the drive member, and
• wherein an inner circumferential part of the damper device is coupled to the coupling part and an outer circumferential part of the damper device is coupled to an outer circumferential side of the second-side extension part of the drive member.

A transfer device of a vehicle, comprising:

• an input shaft configured to receive an output torque of a drive source at an axial first side of the input shaft in axial directions thereof;
• a main-wheel output part provided on an axial second side of the input shaft and configured to output the output torque of the drive source to main drive wheels, the axial second side being opposite from the axial first side in the axial directions;
• an auxiliary-wheel output shaft provided in parallel to the input shaft and configured to output the output torque of the drive source to auxiliary drive wheels;
• a coupling provided on the input shaft and configured to extract a part of the output torque that is outputted to the auxiliary drive wheels;
• a drive member having a hollow section and provided on the input shaft;
• a driven member provided on the auxiliary-wheel output shaft and meshed with the drive member;
• a universal joint provided on the auxiliary-wheel output shaft, the universal joint having an axial first side and an axial second side;
• and
• a damper device disposed at least on one of the axial first side and axial second side of the universal joint, and configured to reduce noise that occurs due to a variation of the output torque of the drive source.