JPS5913748U

JPS5913748U - Belt driven continuously variable transmission

Info

Publication number: JPS5913748U
Application number: JP10865282U
Authority: JP
Inventors: 英昭松井
Original assignee: トヨタ自動車株式会社
Priority date: 1982-07-16
Filing date: 1982-07-16
Publication date: 1984-01-27

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は、本考案の一実施例である無段変速機の正面断
面図である。第２図は第１図に示した無段変速機の変速
比を制御する制御装置の系統図である。第３図は本考案
の別の実施例である無段変速機の正面断面図である。２：駆動軸（回転軸）、４：被駆動軸（回転軸）、６．
８：固定プーリ、１０，１２：可動プーリ、１４、　１
６：円形穴、１６．２０：円形断面部、３６．３８：Ｖ
溝、４８：駆動変速プーリ、５０：被駆動変速プーリ、
５２：Ｖベルト、５８：ハウジング（油圧室形成部材）
、６２．７０：Ｏリング、６４．７２．：油圧室、６６
：ピストン（油圧室形成部材）、７８，７９，１００，
１０２：油通路、１０４．１０６：障壁。１　斐−１閏′FIG. 1 is a front sectional view of a continuously variable transmission which is an embodiment of the present invention. FIG. 2 is a system diagram of a control device that controls the gear ratio of the continuously variable transmission shown in FIG. 1. FIG. 3 is a front sectional view of a continuously variable transmission according to another embodiment of the present invention. 2: Drive shaft (rotating shaft), 4: Driven shaft (rotating shaft), 6.
8: Fixed pulley, 10, 12: Movable pulley, 14, 1
6: Circular hole, 16.20: Circular cross section, 36.38: V
groove, 48: driving speed change pulley, 50: driven speed change pulley,
52: V belt, 58: Housing (hydraulic chamber forming member)
, 62.70: O-ring, 64.72. : Hydraulic chamber, 66
: Piston (hydraulic chamber forming member), 78, 79, 100,
102: Oil passage, 104.106: Barrier. 1 斐−1 閏′

Claims

[Scope of utility model registration request]

(1) Two sets of speed change consisting of a fixed boolean fixed to the rotating shaft and a movable pulley fitted to the rotating shaft so as to be movable in the axial direction but not rotatable, with a V-groove formed between the two pulleys. A metal V-belt is wound around the pulley, and a hydraulic chamber is formed between the movable pulley and a hydraulic chamber forming member fixed to the rotating shaft and slidably fitted to the movable groove. In a belt-driven continuously variable transmission in which the speed is changed by increasing or decreasing the amount of oil in the hydraulic chamber, at least one of the movable pulleys belonging to each of the two sets of speed change pulleys is connected to the hydraulic chamber from the hydraulic chamber into the groove. A continuously variable transmission characterized by forming at least one oil passage for guiding hydraulic oil.

(2) The continuously variable transmission according to claim 1, wherein the oil passage communicates with the hydraulic chamber at a position substantially farthest from a supply port for hydraulic oil to the hydraulic chamber.