Torsion damper device, seat for a torsion damper device and method for manufacturing a torsion damper
AssigneeValeo Embrayages
InventorsLoic Vassieux, Dominique Lheureux, Daniel Vuckovic, Benoit Perry
Life of this patent
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Abstract
A torsion damping device includes: a first coaxial part and a second coaxial part, springs acting circumferentially between the first coaxial part and the second coaxial part, and a plurality of seats, in which at least one of the seats is a seat that can be mounted in a first orientation and in a second orientation, this seat being a worn seat mounted in the second orientation and exhibiting traces of wear caused by previous use in the first orientation.
Claims20
A seat for a torsion damping device comprising:
- a frontal part which is intended to press against one end of a spring;
- and
- a dorsal part which is intended to press against at least one of a first coaxial part and a second coaxial part of the torsion damping device,
- wherein the seat can be mounted in a first orientation and in a second orientation in the torsion damping device,
- wherein the dorsal part comprises a dorsal face and a bearing relief protruding from the dorsal face and intended to press against at least one of the first coaxial part and the second coaxial part, the bearing relief comprising, when viewed in a plane perpendicular to an axis of rotation:
- a summit,
- a first wall, and
- a second wall connected to the first wall by the summit and situated radially outside the first wall,
- the first wall and the second wall being arranged on either side of an axis perpendicular to the dorsal face and passing through the summit, and
- wherein the summit comprises a demarcation separating the first wall from the second wall.
A torsion damping device comprising:
- a first coaxial part and a second coaxial part rotatably mounted relative to each other about an axis of rotation,
- springs acting circumferentially between the first coaxial part and the second coaxial part so that they elastically oppose the relative rotation of the first coaxial part and the second coaxial part about the axis of rotation,
- a plurality of seats, each seat comprising, a frontal part that presses against an end of a spring (4), and, a dorsal part pressing on at least one of the first coaxial part and the second coaxial part,
- wherein at least one of the seats can be mounted in a first orientation and in a second orientation in the torsion damping device,
- wherein the dorsal part of the at least one of the seats comprises a dorsal face and a bearing relief protruding from the dorsal face and arranged to press against at least one of the first coaxial part and the second coaxial part, the bearing relief comprising, when viewed in a plane perpendicular to an axis of rotation:
- a summit,
- a first wall, and
- a second wall connected to the first wall by the summit and situated radially outside the first wall,
- the first wall and the second wall being arranged on either side of an axis perpendicular to the dorsal face and passing through the summit, and
- wherein the summit comprises a demarcation separating the first wall from the second wall.
A method for manufacturing a torsion damper including a first coaxial part and a second coaxial part rotatably mounted relative to each other about an axis of rotation, springs housed in recesses in the first and second coaxial parts and acting circumferentially between the first coaxial part and the second coaxial part so that the springs elastically oppose relative rotation of the first coaxial part and the second coaxial part about the axis of rotation, a plurality of seats, each seat comprising a frontal part that presses against an end of a spring, and a dorsal part pressing on at least one of the first coaxial part and the second coaxial part, the manufacturing method comprising:
- supplying a worn seat exhibiting traces of wear,
- mounting the worn seat on a spring,
- inserting the assembly comprising the worn seat and the spring into a recess in the first coaxial part and into a recess in the second coaxial part,
- wherein the worn seat can be mounted in a first orientation and in a second orientation in the torsion damping device,
- wherein the dorsal part of the worn seat comprises a dorsal face and a bearing relief protruding from the dorsal face and arranged to press against at least one of the first coaxial part and the second coaxial part, the bearing relief comprising, when viewed in a plane perpendicular to an axis of rotation;
- a summit,
- a first wall, and
- a second wall connected to the first wall by the summit and situated radially outside the first wall,
- the first wall and the second wall being arranged on either side of an axis perpendicular to the dorsal face and passing through the summit, and
- wherein the summit comprises a demarcation separating the first wall from the second wall.
Dependencies are inferred from the claim text.