BELT-TYPE CONTINUOUSLY VARIABLE TRANSMISSION FOR WORK MACHINE

Japanese Patent JP2017082828

A

PROBLEM TO BE SOLVED: To improve workability of a work machine including a belt-type continuously variable transmission.SOLUTION: A belt-type continuously variable transmission 63 for a work machine capable of continuously changing a reduction ratio of a driven pulley 74 to a driving pulley 72, has a reduction ratio regulation mechanism 90 for regulating a minimum reduction ratio of the driven pulley to the driving pulley. The driven pulley includes a fixed sheave 81, a movable sheave 82 axially displaceable to the fixed sheave, a coil spring 83 energizing the movable sheave toward the fixed sheave, and a torque cam mechanism 84 for converting a part of the torque acting on the movable sheave into thrust for pressing a side face of a belt. The reduction ratio regulation mechanism has a swing arm 91 for adjusting an allowable separable range in an axial direction of the movable sheave to the fixed sheave, and a regulation driving portion 110 for swinging and driving a swing tip portion 93 of the swing arm in a stepless manner.SELECTED DRAWING: Figure 2

YOSHIMURA HAJIME
MATSUO YUJI
ISHIKAWA TOMOAKI
KATAOKA MAKOTO
KAWASHIMA NARISHIRO
YOKOYAMA NORIHIKO
MIWA NAOYUKI

JP2015208870A

May 18, 2017

October 23, 2015

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HONDA MOTOR CO LTD
F C C:KK

F16H9/18

JP2011033067A	2011-02-17
JPS57157522U	1982-10-04

WO2007119738A1	2007-10-25
WO2014132749A1	2014-09-04

Patent Business Corporation Kushibuchi International Patent Office
Yoichiro Shimoda
Norimasa Shimoda
Katsuhiko Sumiyoshi
Tadanori Masanori
Toshitake Nozaki

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