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US 12,631,220 B2Granted
Torque limiter and power transmission device
AssigneeExedy Corporation
InventorsHiroshi Uehara, Hiroaki Kato, Yusuke Nagaoka
Life of this patent
Estimating the term…
Abstract
A torque limiter includes a first side plate, a second side plate, a friction disc, a pressure plate, and a biasing member. The first side plate includes an attachment surface. The attachment surface faces in an axial direction so as to be attached to a flywheel. The second side plate has a smaller outer diameter than the outer diameter of the first side plate. The second side plate is disposed so as to not overlap the attachment surface as seen in an axial direction. The second side plate is attached to the first side plate.
Claims6
A torque limiter configured to be attached to a flywheel, the torque limiter comprising:
- a first side plate including an attachment surface, the attachment surface facing in an axial direction so as to be attached to the flywheel;
- a second side plate that has a smaller outer diameter than an outer diameter of the first side plate, the second side plate disposed so as to not overlap the attachment surface as seen in the axial direction, the second side plate attached to the first side plate;
- a friction disc disposed between the first side plate and the second side plate in the axial direction;
- a pressure plate in contact with the friction disc, the pressure plate including a claw portion extending toward the first side plate and the first side plate includes an insertion hole for insertion of the claw portion;
- and
- a biasing member biasing the pressure plate toward the friction disc,
- wherein the first side plate is thicker than the second side plate.
4 more elements
A torque limiter configured to be attached to a flywheel, the torque limiter comprising:
- a first side plate including an attachment surface, the attachment surface facing in an axial direction so as to be attached to the flywheel;
- a second side plate that has a smaller outer diameter than an outer diameter of the first side plate, the second side plate disposed so as to not overlap the attachment surface as seen in the axial direction, the second side plate attached to the first side plate;
- a friction disc disposed between the first side plate and the second side plate in the axial direction;
- a pressure plate in contact with the friction disc;
- and
- a biasing member biasing the pressure plate toward the friction disc;
- and
- a first fastening member fastening the first side plate and the second side plate to each other, wherein the first fastening member is disposed radially inward of the attachment surface, wherein
- the first side plate includes a first outer circumferential portion, a first inner circumferential portion, and a first coupling portion, the first outer circumferential portion including the attachment surface,
- the first coupling portion extends in the axial direction so as to couple the first outer circumferential portion to the first inner circumferential portion,
- the first coupling portion includes a first recessed portion recessed radially inward, and
- the first recessed portion opposes the first fastening member.
9 more elements
A power transmission device comprising:
- a flywheel;
- and
- a torque limiter including
- a first side plate including an attachment surface, the attachment surface facing in an axial direction so as to be attached to the flywheel;
- a second side plate that has a smaller outer diameter than an outer diameter of the first side plate, the second side plate disposed so as to not overlap the attachment surface as seen in the axial direction, the second side plate attached to the first side plate;
- a friction disc disposed between the first side plate and the second side plate in the axial direction;
- a pressure plate in contact with the friction disc;
- a biasing member biasing the pressure plate toward the friction disc;
- and
- a first fastening member fastening the first side plate and the second side plate to each other, wherein the first fastening member is disposed radially inward of the attachment surface,
- wherein the flywheel includes a flexible plate, an inertia ring attached to an outer circumferential portion of the flexible plate, and a fastening member fastening the inertia ring to the flexible plate,
- the inertia ring includes a fastening recessed portion for fastening by the fastening member, the fastening recessed portion being disposed at an inner circumferential portion of the inertia ring, and
- the first fastening member overlaps the fastening recessed portion as seen in the axial direction.
10 more elements
Dependencies are inferred from the claim text.