JPH01176254U

JPH01176254U -

Info

Publication number: JPH01176254U
Application number: JP7376888U
Authority: JP
Priority date: 1988-06-01
Filing date: 1988-06-01
Publication date: 1989-12-15

Description

[Brief explanation of the drawing]

第１図は本考案の実施例に係る無段変速機の縦
断面図である。１……エンジン出力軸、２……タービン軸、３
……ポンプインペラ、４……タービンランナー、
５……ステータ、１１……リングギヤ、１２……
サンギヤ、１３，１４……ピニオンギヤ、１５…
…キヤリア、１６……クラツチ、１７……ブレー
キ、２１……プライマリープーリー、２２……プ
ライマリー軸、２３，４３……固定円錐板、２４
，４４…可動円錐板、２５，４５，５１……シリ
ンダ、２６，４６，５２……ピストン、２７，５
０，５３……圧力室、３０……ベルト、４１……
セカンダリープーリー、４２……セカンダリー軸
、４７……リターンスプリング、８１……第１押
圧手段、８２……第２押圧手段。 FIG. 1 is a longitudinal sectional view of a continuously variable transmission according to an embodiment of the present invention. 1...Engine output shaft, 2...Turbine shaft, 3
...Pump impeller, 4...Turbine runner,
5... Stator, 11... Ring gear, 12...
Sun gear, 13, 14...Pinion gear, 15...
...Carrier, 16...Clutch, 17...Brake, 21...Primary pulley, 22...Primary shaft, 23, 43...Fixed conical plate, 24
, 44... Movable conical plate, 25, 45, 51... Cylinder, 26, 46, 52... Piston, 27, 5
0,53...pressure chamber, 30...belt, 41...
Secondary pulley, 42... Secondary shaft, 47... Return spring, 81... First pressing means, 82... Second pressing means.

Claims

[Scope of utility model registration request]

It consists of a fixed conical plate fixedly arranged with respect to a primary shaft connected to a drive source and a movable conical plate arranged movably in the axial direction, and the movable conical plate is pressed by a pressing means arranged on the side thereof. a primary pulley whose effective diameter is defined by moving the pulley, a fixed conical plate fixedly arranged relative to a secondary shaft arranged parallel to the primary axis, and a movable cone arranged movably in the axial direction. A belt is stretched between the movable conical plate and a secondary pulley, the effective diameter of which is determined by pressing and moving the movable conical plate with a pressing means disposed on its side, so as to be able to transmit torque. A continuously variable transmission comprising a belt transmission mechanism, wherein the pressing means of at least one of the pulleys is configured integrally with the movable conical plate.
A first piston provided with an axially extending step part to allow movement of the boss part of the movable conical plate in the axial direction is fixed in the cylinder and at the open end of the first cylinder. is located on the outer periphery of the stepped portion so as to be slidable relative to each other, and the movable conical plate, the first cylinder, and the first piston form a main pressure chamber; The first piston is located on the side opposite to the movable conical plate of the first piston and is relatively slidable on the stepped portion on the outside of the stepped portion.
a second piston disposed so as to be able to abut on the open end of the cylinder; and a second cylinder into which the second piston is fitted so as to be relatively slidable and fixedly disposed relative to the shaft; A continuously variable transmission comprising a stepped portion of a piston and a second pressing means formed by the second piston and the second cylinder forming a second pressure chamber.