Freewheel bearing device with torque limiter
First Claim
1. A freewheel bearing device comprising:
- an outer element;
an inner element placed in the outer element;
a rolling bearing; and
a freewheel having an outer race, the rolling bearing and the freewheel being mounted adjacent between the inner element and the outer element to leave free a rotation movement in one direction and to transmit a torque in the other direction between the outer element and the inner element; and
a torque limiter member capable of limiting the torque transmitted by the freewheel, the torque limiter member being placed radially between the freewheel and the outer element,wherein the torque limiter member comprises at least one friction element fixedly attached in rotation with said outer race of the freewheel and at least one elastically pressing element axially prestressing said friction element with a corresponding radial surface of said outer element.
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Accused Products
Abstract
The invention concerns a freewheel bearing device including an outer element and inner element arranged inside the outer element, and a free wheel provided with at least a wedging element, arranged between the inner element and the outer element to allow a free rotational movement in one direction between the outer element and the inner element and for transmission of a torque in the other direction between the outer element and the inner element, the free wheel including a ring provided with a cylindrical inner surface and a cylindrical outer surface, substantially aligned on a radial plane perpendicular to the axis of rotation of the device, and a torque limiting member adapted to limit the torque transmitted by the free wheel, the torque limiting member being arranged radially between said ring and the outer element or the inner element in contact with said ring and said element.
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Citations
12 Claims
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1. A freewheel bearing device comprising:
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an outer element; an inner element placed in the outer element; a rolling bearing; and a freewheel having an outer race, the rolling bearing and the freewheel being mounted adjacent between the inner element and the outer element to leave free a rotation movement in one direction and to transmit a torque in the other direction between the outer element and the inner element; and a torque limiter member capable of limiting the torque transmitted by the freewheel, the torque limiter member being placed radially between the freewheel and the outer element, wherein the torque limiter member comprises at least one friction element fixedly attached in rotation with said outer race of the freewheel and at least one elastically pressing element axially prestressing said friction element with a corresponding radial surface of said outer element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A freewheel bearing device comprising:
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an outer element, an inner element placed in the outer element, a rolling bearing; and a freewheel, the rolling bearing and the freewheel being mounted adjacent between the inner element and the outer element to leave free a rotation movement in one direction and to transmit a torque in the other direction between the outer element and the inner element, and a torque limiter member capable of limiting the torque transmitted by the freewheel, the torque limiter member being placed radially between the freewheel and the outer element, wherein the freewheel comprises a friction element with a radially deformable body made of synthetic material said body having an axial outer surface in friction contact with said outer element, said body housing coils of an helical spring, which coils are in friction contact with said inner elements, one end of said spring being attached in rotation to said body;
said friction element being prestressed against the outer element. - View Dependent Claims (12)
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Specification