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US 5,355,981 AGranted
Torque transmission device
AssigneeNtn Corporation
InventorsKenichiro Itoh, Hiromi Nojiri, Kenro Adachi
Life of this patent
Estimating the term…
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AssigneeNtn Corporation
InventorsKenichiro Itoh, Hiromi Nojiri, Kenro Adachi
Estimating the term…
A torque transmission device has an outer ring and an input shaft rotatably mounted in the outer ring. The outer ring and the input shaft are formed with engaging surfaces so as to be opposite to each other. A cage is rotatably mounted between the engaging surfaces and provided with pockets. The engaging elements are mounted in the pockets and adapted to engage the engaging surfaces when the input shaft and the cage rotate either in a normal or reverse direction relative to each other. Elastic members are mounted in the pockets to hold the engaging elements in a position where they are not engaged. A control shaft is mounted coaxially and rotatably with respect to the input shaft. The cage and the input shaft are coupled together through the control shaft so that a turning torque can be transmitted therebtween. A gap is provided in the direction of rotation at a coupling portion between the input shaft and the control shaft. A differential unit is provided to create a difference in speed between the input shaft and the control shaft.
A torque transmission device comprising an outer ring, an input shaft rotatably mounted in said outer ring, said outer ring and said input shaft being formed with engaging surfaces so as to be opposite to each other, a cage rotatably mounted between said outer ring and said input shaft and formed with pockets, engaging elements mounted in said pockets and adapted to engage said engaging surfaces when said input shaft and said cage rotate relative to each other, elastic members mounted in said pockets to urge said engaging elements toward a position where they do not engage, a control shaft mounted coaxially with respect to said input shaft, said control shaft being integrally coupled with said cage, and input member integral with said control shaft and coupled with said input shaft with a gap left therebetween in the direction of rotation, and a rotation delay means for causing a relative rotation between said control shaft and said input shaft.
Dependencies are inferred from the claim text.