JPS6418662U

JPS6418662U -

Info

Publication number: JPS6418662U
Application number: JP11269487U
Authority: JP
Priority date: 1987-07-24
Filing date: 1987-07-24
Publication date: 1989-01-30

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案に係る一実施例の駆動側断面図
、第２図は同上の従動側断面図、第３図は従来の
ベルト式無段変速装置の断面図である。１０……ベルト、１１……固定プーリ片、１２
……可動プーリ片、１５……駆動ベルト車、１６
……クランク軸、１９ａ……作動油供給通路、１
９ｂ……作動油排出通路、２３……ピストン、２
３ａ……圧力調整孔、２３ｂ……作動油排出口、
２５……重鎮、２６……重鎮ガイド、２８……弁
体、Ａ……圧力室、Ｂ……低圧側室。 FIG. 1 is a sectional view of the driving side of an embodiment of the present invention, FIG. 2 is a sectional view of the driven side of the same, and FIG. 3 is a sectional view of a conventional belt type continuously variable transmission. 10...Belt, 11...Fixed pulley piece, 12
...Movable pulley piece, 15...Drive belt wheel, 16
... Crankshaft, 19a ... Hydraulic oil supply passage, 1
9b...Hydraulic oil discharge passage, 23...Piston, 2
3a...Pressure adjustment hole, 23b...Hydraulic oil outlet,
25...Heavyweight, 26...Heavyweight guide, 28...Valve body, A...Pressure chamber, B...Low pressure side chamber.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

回転軸と、ベルトが巻回されるベルト車の一側
部を構成し前記回転軸に固定された固定プーリ片
と、前記ベルト車の他側部を構成し前記回転軸に
軸方向に移動自由に支持された可動プーリ片と、
作動流体が圧送される圧力室内の圧力に応じて可
動プーリ片を回転軸方向に移動させるアクチユエ
ータと、前記圧力室と低圧側とを連通する圧力調
整孔と、前記回転軸の回転に伴う遠心力に応じて
移動する移動部材と、該移動部材に設けられ前記
圧力調整孔との相対位置関係に応じて該圧力調整
孔を開閉制御する弁体と、を備えたことを特徴と
するベルト式無段変速装置。 A rotating shaft, a fixed pulley piece that forms one side of the belt wheel around which the belt is wound and is fixed to the rotating shaft, and a fixed pulley piece that forms the other side of the belt wheel and is free to move axially around the rotating shaft. a movable pulley piece supported by;
an actuator that moves a movable pulley piece in the direction of the rotating shaft according to the pressure within the pressure chamber to which working fluid is pumped; a pressure adjustment hole that communicates the pressure chamber with the low pressure side; and a centrifugal force accompanying rotation of the rotating shaft. A belt-type vehicle comprising: a moving member that moves according to the pressure; and a valve body that is provided on the moving member and controls opening and closing of the pressure regulating hole according to a relative positional relationship with the pressure regulating hole. gear transmission.