Roller-Type Rocker Arm
AssigneeRiken
InventorMitsuhiro Maehara
Life of this patent
Estimating the term…
Abstract
A roller-type rocker arm had a function for transmitting a rotational motion of a cam to an intake and exhaust valve. The roller-type rocker arm includes a roller shaft, an inner ring roller slidably attached to an outer circumference surface of the roller shaft, and an outer ring roller slidably attached to an outer circumference surface of the inner ring roller. The inner ring roller is made of a resin material.
Claims16
A roller-type rocker arm having a function for transmitting a rotational motion of a cam to an intake and exhaust valve, the roller-type rocker arm comprising:
- a roller shaft;
- an inner ring roller made of a resin material, the inner ring roller slidably attached to an outer circumference surface of the roller shaft;
- and
- an outer ring roller slidably attached to an outer circumference surface of the inner ring roller.
A roller-type rocker arm having a function for transmitting a rotational motion of a cam to an intake and exhaust valve, the roller-type rocker arm comprising:
- a roller shaft having an outer circumference surface formed with an amorphous hard carbon coat;
- an inner ring roller made of a resin material, the inner ring roller slidably attached to the outer circumference surface of the roller shaft, wherein the resin material comprises a material selected from the consisting of polyetheretherketon, polyphenylenesulfide, polytetrafluoroethene, polyethersulphone, polybensimidazole, polyimide and poliamide;
- and
- an outer ring roller having an inner circumference surface that is slidably attached to an outer circumference surface of the inner ring roller, the inner surface of the outer ring roller being formed with an amorphous hard carbon coat.
A roller-type rocker arm having a function for transmitting a rotational motion of a cam to an intake and exhaust valve, the roller-type rocker arm comprising:
- a roller shaft having an outer circumference surface formed with an amorphous hard carbon coat;
- an inner ring roller made of a resin material, the inner ring roller slidably attached to the outer circumference surface of the roller shaft, wherein the resin material includes reinforced fibers that are arranged approximately in parallel to a sliding direction of the inner ring roller;
- and
- an outer ring roller having an inner circumference surface that is slidably attached to an outer circumference surface of the inner ring roller, the inner surface of the outer ring roller being formed with an amorphous hard carbon coat.
Dependencies are inferred from the claim text.