JPS6281755U

JPS6281755U -

Info

Publication number: JPS6281755U
Application number: JP17125785U
Authority: JP
Priority date: 1985-11-07
Filing date: 1985-11-07
Publication date: 1987-05-25

Description

[Brief explanation of drawings]

第１図は本考案第１実施例の無段変速機のプー
リ装置を示す断面図、第２図は第１実施例装置の
作動状態を示す半断面図、第３図は第２実施例の
プーリ装置を示す半断面図、第４図は第３実施例
のプーリ装置を示す半断面図、第５図は従来のプ
ーリ装置を示す半断面図である。Ａ……プーリ装置、１……プーリ軸、２……固
定プーリ、３……可動プーリ、４……タンデム油
圧作動機構、１０……可動シリンダ、２０……固
定部材、２１……固定シリンダ部、２２……固定
ピストン部、２３……導油口、３０……可動部材
、３１……可動ピストン部、３２……可動シリン
ダ部、４０……固定ピストン、５０……第１油圧
室、６０……第２油圧室、７０……室。 FIG. 1 is a sectional view showing a pulley device of a continuously variable transmission according to the first embodiment of the present invention, FIG. FIG. 4 is a half-sectional view showing the pulley device of the third embodiment, and FIG. 5 is a half-sectional view showing the conventional pulley device. A... Pulley device, 1... Pulley shaft, 2... Fixed pulley, 3... Movable pulley, 4... Tandem hydraulic actuation mechanism, 10... Movable cylinder, 20... Fixed member, 21... Fixed cylinder section , 22... Fixed piston part, 23... Oil inlet, 30... Movable member, 31... Movable piston part, 32... Movable cylinder part, 40... Fixed piston, 50... First hydraulic chamber, 60 ...Second hydraulic chamber, 70...room.

Claims

[Claims for Utility Model Registration] A fixed pulley provided on a pulley shaft, a movable pulley provided slidably on the pulley shaft opposite to the fixed pulley, and a tandem hydraulic operating mechanism provided on the back of the movable pulley. A pulley device for a continuously variable transmission comprising: a movable cylinder formed as a separate part from the movable pulley and fixed to the back surface of the movable pulley; a fixed piston part and a fixed cylinder part formed integrally; The movable cylinder part and the movable piston part are integrally formed with a fixed member in which the outer periphery of the fixed piston part is slidably fitted to the inner periphery of the movable cylinder, and the inner periphery end of the fixed cylinder part is fixed to the pulley shaft. and the inner periphery of the movable piston part is slidably fitted to the outer periphery of the fixed cylinder part of the fixed member, and the movable cylinder part is overlapped with the movable cylinder part, and the movable piston part is connected to or in contact with the movable cylinder part. a movable member that is in contact with the movable member; a fixed piston whose outer periphery is slidably fitted to the inner periphery of the movable cylinder portion of the movable member and whose inner periphery end is fixed to the pulley shaft; and the movable pulley and the movable cylinder are fixed. a first hydraulic chamber surrounded by a fixed member, a movable member, and a fixed cylinder; a second hydraulic chamber communicated with the first hydraulic chamber via an oil inlet formed in the fixed member; A pulley device for a continuously variable transmission, characterized in that the tandem hydraulic operating mechanism includes a chamber surrounded by a cylinder, a fixed member, and a movable member.