CONTINUOUSLY VARIABLE TRANSMISSION

Title:

CONTINUOUSLY VARIABLE TRANSMISSION

Document Type and Number:

WIPO Patent Application WO/2016/013060

Kind Code:

A1

Abstract:

To improve a belt transmission efficiency by increasing the jutting biasing force of an inner pin during the rotation of a pulley. A continuously variable transmission (CVT) having a chain belt (3) looped over a primary pulley (1) and a secondary pulley (2) between the opposed sheave surfaces (11, 21) thereof, wherein the chain belt (3) has a pair of inner pins (33, 33), and a first coil spring (35) and a second coil spring (36). The pair of inner pins (33, 33) have a pin end portion (33a) engaged with radial recessed grooves (13, 23) that are formed on the sheave surfaces (11, 21). Both coil springs (35, 36) impart a jutting biasing force to the pair of inner pins (33, 33). Further, elevation angles (θ, θ) tilted in a pulley outer diameter direction relative to a locker pin axis (L) that is parallel to a pulley axis were set to a locker pin groove hole (34) in which the pair of inner pins (33, 33) were disposed.

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Inventors:

MATSUSHITA YUUKI (JP)

Application Number:

PCT/JP2014/069348

Publication Date:

January 28, 2016

Filing Date:

July 22, 2014

Export Citation:

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Assignee:

NISSAN MOTOR (JP)

International Classes:

F16H9/24; F16G5/18; F16G13/06

Foreign References:

US2913916A	1959-11-24
JPS6465350A	1989-03-10
JP2011163461A	2011-08-25
JPS5833852U	1983-03-05

Attorney, Agent or Firm:

NISHIWAKI, Tamio (JP)
Tamio Nishiwaki (JP)

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