Driving force transmission device
AssigneeKamoseiko Kabushiki Kaisha
InventorsMasashi OZAKI, Yusuke FUKUOKA
Life of this patent
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Abstract
A transmission device (1) includes an oil feeder (7) including coil springs (9a, 9b) urging a feeder body (8) in a third direction. The third direction is perpendicular to a first direction and to a second direction, where the first direction is the axial direction of rotation of a pinion (2), and the second direction is a direction of a specific tangent of tangents to a circle being a path of the outermost peripheries of revolving pin rollers (4). The transmission device (1) has less performance decrease in feeding oil to the pin rollers (4) resulting from wear of the feeder body (8).
Claims5
A driving force transmission device, comprising:
- a pinion configured to mesh with a gear;
- and
- an oil feeder configured to feed oil to the pinion,
- wherein the pinion includes a plurality of pin rollers arranged in a cylindrical shape and parallel to an axial direction of rotation of the pinion, and each of the plurality of pin rollers is cylindrical and meshes with the gear as a tooth,
- the oil feeder includes
- a feeder body being a source of oil fed to the plurality of pin rollers, and including a cylindrical surface with a radius substantially same as a radius of revolution of outermost peripheries of the plurality of pin rollers when the pinion rotates, and
- an urging unit urging the feeder body to place the cylindrical surface in contact with the outermost peripheries of the plurality of pin rollers,
- the oil feeder feeds oil to the plurality of pin rollers from the feeder body when the pinion rotates and the outermost peripheries of the plurality of pin rollers slide on the cylindrical surface, and
- the urging unit urges the feeder body in a third direction perpendicular to a first direction and to a second direction at two or more positions, where the first direction is the axial direction of rotation of the pinion, and the second direction is a direction of a specific tangent of tangents to a circle being a path of the outermost peripheries of the plurality of pin rollers revolving.
A driving force transmission device, comprising:
- a pinion configured to mesh with a gear;
- and
- a feeder body configured to feed oil to the pinion,
- wherein the pinion includes a plurality of pin rollers arranged in a cylindrical shape and parallel to an axial direction of rotation of the pinion, and each of the plurality of pin rollers is cylindrical and meshes with the gear as a tooth,
- the feeder body is a source of oil fed to the plurality of pin rollers, and includes a cylindrical surface with a radius substantially same as a radius of revolution of outermost peripheries of the plurality of pin rollers when the pinion rotates, and
- the feeder body pushes the cylindrical surface with elasticity of the feeder body in a third direction perpendicular to a first direction and to a second direction to place the cylindrical surface in contact with the outermost peripheries of the plurality of pin rollers, where the first direction is the axial direction of rotation of the pinion and the second direction is a direction of a specific tangent of tangents to a circle being a path of the outermost periphies of the plurality of pin rollers revolving.
Dependencies are inferred from the claim text.