STEPLESS TRANSMISSION - TOYOTA MOTOR CO LTD

Title:

STEPLESS TRANSMISSION

Document Type and Number:

WIPO Patent Application WO/2014/069125

Kind Code:

A1

Abstract:

A stepless transmission has a shaft (60), first and second rotating members (10, 20), a sun roller (30), a carrier (40), planetary balls (50), a shifter which changes the transmission ratio between the input and output by tilting the planetary balls, a casing (CAt) which houses the abovementioned elements, and a lubricating oil supply hole (for example, the discharge hole of a radial oil passage (62)) which supplies lubricating oil from the inside to the outside in the radial direction into the casing. The casing is provided with a discharge hole (92) for discharging lubricating oil within the casing to the outside of the casing, the discharge hole (92) being provided in at least one of the side walls of the casing in the axial direction of the shaft so as to be located on the outside of the lubricating oil supply hole in the radial direction. When viewed in the axial direction, the discharge hole is formed either at the position at which the discharge hole intersects contact sections or additional contact sections, the contact sections and the additional contact sections being sections where each planetary ball and the first and second rotating members are in contact with each other, or on the outside of the contact sections or the additional contact sections in the radial direction.

Inventors:

HIBINO AKIRA (JP)
OGAWA HIROYUKI (JP)
ARATSU YUKI (JP)

Application Number:

PCT/JP2013/075772

Publication Date:

May 08, 2014

Filing Date:

September 24, 2013

Export Citation:

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Assignee:

TOYOTA MOTOR CO LTD (JP)
HIBINO AKIRA (JP)
OGAWA HIROYUKI (JP)
ARATSU YUKI (JP)

International Classes:

F16H15/52; F16H57/04

Domestic Patent References:

WO2011067812A1

2011-06-09

Foreign References:

JPS6350583B2	1988-10-11
JPS3622192B1
JP2008516165A	2008-05-15

Other References: