US 12,331,828 B2
Driving force transmission device
Masashi Ozaki, Toyota-sh (JP); and Yusuke Fukuoka, Seto (JP)
Assigned to KAMOSEIKO KABUSHIKI KAISHA, Toyota (JP)
Appl. No. 18/293,320
Filed by KAMOSEIKO KABUSHIKI KAISHA, Toyota (JP)
PCT Filed Feb. 11, 2022, PCT No. PCT/JP2022/005525
§ 371(c)(1), (2) Date Jan. 29, 2024,
PCT Pub. No. WO2023/032258, PCT Pub. Date Mar. 9, 2023.
Claims priority of application No. 2021-143346 (JP), filed on Sep. 2, 2021.
Prior Publication US 2024/0247712 A1, Jul. 25, 2024
Int. Cl. F16H 57/04 (2010.01); F16H 1/06 (2006.01); F16H 1/24 (2006.01); F16H 19/04 (2006.01)
CPC F16H 57/0434 (2013.01) [F16H 57/0467 (2013.01); F16H 57/048 (2013.01); F16H 1/06 (2013.01); F16H 1/24 (2013.01); F16H 19/04 (2013.01)] 6 Claims
OG exemplary drawing
 
1. 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 for feeding the oil to the plurality of pin rollers, and including a cylindrical surface with a radius substantially the same as a radius of revolution of outermost peripheries of the plurality of the pin rollers so that the cylindrical surface contacts the pin rollers when the pinion rotates;
an urging unit for urging the feeder body to place the cylindrical surface in contact with the outermost peripheries of the plurality of the pin rollers; and
an adjustment mechanism to adjust a position of the cylindrical surface with respect to the pin rollers,
the oil feeder for feeding the oil to the plurality of pin rollers from the feeder body when the pinion rotates and the outermost peripheries of the plurality of the pin rollers slide on the cylindrical surface, and
the urging unit for urging 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 one of the pin rollers that is located at a top position.