POWER TRANSMISSION DEVICE FOR VEHICLE
First Claim
1. A power transmission device for a vehicle, the power transmission device comprising:
- a first rotary shaft;
a second rotary shaft;
a spline fitting portion configured to spline-fit the first rotary shaft and the second rotary shaft in a part of a power transmission path from a power source to a drive wheel; and
a tolerance ring provided at a place at which the first rotary shaft is inserted into the second rotary shaft and which is different from the spline fitting portion,the tolerance ring including an annular portion and a protrusion,the annular portion being configured to come into contact with one of the first rotary shaft and the second rotary shaft,the protrusion being configured to come into contact with the other one of the first rotary shaft and the second rotary shaft,the one of the first rotary shaft and the second rotary shaft being provided with a groove, andthe groove being configured to supply a lubricant to a region of the tolerance ring where the annular portion comes into contact.
1 Assignment
0 Petitions
Accused Products
Abstract
A tolerance ring is interposed between an output side rotary shaft and a rotor shaft. For this reason, even in a case where a backlash formed in a spline fitting portion between the output side rotary shaft and the rotor shaft is not eliminated, the rotary shafts of both of the output side rotary shaft and the rotor shaft are held by the tolerance ring without a backlash, and rattling noise can be suppressed. An oil supply groove for supplying a lubricant between an annular portion of the tolerance ring and the output side rotary shaft is provided inside an annular groove formed in the output side rotary shaft. With this, it is possible to suppress degradation of the durability of the tolerance ring without performing special processing on the tolerance ring.
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Citations
5 Claims
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1. A power transmission device for a vehicle, the power transmission device comprising:
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a first rotary shaft; a second rotary shaft; a spline fitting portion configured to spline-fit the first rotary shaft and the second rotary shaft in a part of a power transmission path from a power source to a drive wheel; and a tolerance ring provided at a place at which the first rotary shaft is inserted into the second rotary shaft and which is different from the spline fitting portion, the tolerance ring including an annular portion and a protrusion, the annular portion being configured to come into contact with one of the first rotary shaft and the second rotary shaft, the protrusion being configured to come into contact with the other one of the first rotary shaft and the second rotary shaft, the one of the first rotary shaft and the second rotary shaft being provided with a groove, and the groove being configured to supply a lubricant to a region of the tolerance ring where the annular portion comes into contact. - View Dependent Claims (2, 3, 4, 5)
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Specification