Transmission, and manufacturing method for same
AssigneesJATCO Ltd, Nissan Motor Co., Ltd.
InventorYasuhiro Ishikawa
Life of this patent
Estimating the term…
Abstract
A transmission includes: a torque converter; a transmission input shaft; a seal member sandwiched between the hollow shaft and the transmission input shaft; and a bush, the transmission input shaft including a large diameter portion abutted on the seal member, and a small diameter portion which is positioned on the tip end side of the large diameter portion, and which has a diameter smaller than a diameter of the large diameter portion, the seal member having a diameter larger than a diameter of the bush, and the small diameter portion having an axial length set to be longer than a length from an insertion inlet of the transmission input shaft of the bush to the seal member.
Claims5
A transmission comprising:
- a torque converter including a hollow shaft;
- a transmission input shaft provided radially inside the hollow shaft;
- a seal member sandwiched between the hollow shaft and the transmission input shaft;
- and
- a bush sandwiched between the hollow shaft and the transmission input shaft, and provided at a tip end side of the transmission input shaft with respect to the seal member,
- the transmission input shaft including a large diameter portion abutted on the seal member, and a small diameter portion which is positioned on the tip end side of the large diameter portion, and which has a diameter smaller than a diameter of the large diameter portion,
- the seal member having an inside diameter larger than an outside diameter of the bush, and
- the small diameter portion having an axial length set to be longer than a length from an insertion inlet of the transmission input shaft of the bush to the seal member.
A manufacturing method for a transmission including
- a torque converter including a hollow shaft;
- a transmission input shaft which is provided radially inside the hollow shaft, and which includes a small diameter portion, and a large diameter portion having a diameter greater than a diameter of the small diameter portion;
- a seal member sandwiched between the hollow shaft and the transmission input shaft;
- and
- a bush which is sandwiched between the hollow shaft and the transmission input shaft, which is provided at a tip end side of the transmission input shaft with respect to the seal member, and which has an outside diameter smaller than an inside diameter of the seal member,
- the manufacturing method comprising:
- when the torque converter is mounted to the transmission input shaft, pushing the torque converter to align an axis of the small diameter portion in a state where the seal member and the large diameter portion are not abutted, and
- further pushing the torque converter to contact the large diameter portion and the seal member.
Dependencies are inferred from the claim text.