JPS63193152U

JPS63193152U -

Info

Publication number: JPS63193152U
Application number: JP8421587U
Authority: JP
Priority date: 1987-05-30
Filing date: 1987-05-30
Publication date: 1988-12-13

Description

[Brief explanation of the drawing]

第１〜３図はこの考案の実施例を示し、第１図
はＶベルト無段変速装置の低速走行状態の概略説
明図、第２図はＶベルト無段変速装置の高速走行
状態の概略説明図、第３図はＶベルト無段変速装
置の減速状態の概略説明図である。第４〜６図は
この考案の従来技術を示し、第４図はＶベルト無
段変速装置の概略断面図、第５図はＶベルト無段
変速装置の概略図、第６図はＶベルト無段変速装
置のスラスト力を示す図である。図において、２はＶベルト無段変速装置、４は
駆動側第１プーリ、６は被駆動側第２プーリ、８
は駆動軸、１０は第１固定プーリ部片、１２は第
１可動プーリ部片、１４は第１Ｖ溝部、１６は第
２固定プーリ部片、１８は第２可動プーリ部片、
２０は第２Ｖ溝部、２２はＶベルト、２４は第１
固定壁、２６は第２可動壁、２８は第１可動壁、
３０は第２固定壁、３２はローラ案内面、３４は
遠心ローラ、３６はスプリング、３８はテンシヨ
ン機構、４０は支点、４２はレバー、４４はベア
リング、４６はテンシヨナ、４８はアクチユエー
タ、５０はダイヤフラム、５２はプツシユロツド
、５４はテンシヨンスプリング、５６はダイヤフ
ラムスプリング、５８はダイヤフラム室、６０は
トルクカム、６２は圧力取入口である。 1 to 3 show an embodiment of this invention, FIG. 1 is a schematic illustration of a V-belt continuously variable transmission in a low-speed running state, and FIG. 2 is a schematic illustration of a high-speed running state of the V-belt continuously variable transmission. 3 are schematic explanatory diagrams of the deceleration state of the V-belt continuously variable transmission. 4 to 6 show the prior art of this invention, FIG. 4 is a schematic sectional view of a V-belt continuously variable transmission, FIG. 5 is a schematic diagram of a V-belt continuously variable transmission, and FIG. 6 is a schematic diagram of a V-belt continuously variable transmission. FIG. 3 is a diagram showing thrust force of a gear change transmission. In the figure, 2 is a V-belt continuously variable transmission, 4 is a first pulley on the drive side, 6 is a second pulley on the driven side, and 8 is a continuously variable transmission device.
is a drive shaft, 10 is a first fixed pulley part, 12 is a first movable pulley part, 14 is a first V groove part, 16 is a second fixed pulley part, 18 is a second movable pulley part,
20 is the second V groove, 22 is the V belt, and 24 is the first
A fixed wall, 26 a second movable wall, 28 a first movable wall,
30 is a second fixed wall, 32 is a roller guide surface, 34 is a centrifugal roller, 36 is a spring, 38 is a tension mechanism, 40 is a fulcrum, 42 is a lever, 44 is a bearing, 46 is a tensioner, 48 is an actuator, 50 is a diaphragm , 52 is a push rod, 54 is a tension spring, 56 is a diaphragm spring, 58 is a diaphragm chamber, 60 is a torque cam, and 62 is a pressure intake port.

Claims

[Claims for Utility Model Registration] 1. Both pulley parts of a pulley having a fixed pulley part fixed to a drive shaft and a movable pulley part attached to the drive shaft so as to be able to approach and separate from the fixed pulley part. In a V-belt continuously variable transmission device that transmits power by increasing or decreasing the rotation radius of the V-belt wound around the pulley by increasing or decreasing the width of a groove formed between the two halves, the V-belt is rotated at a predetermined level during normal running. The V-belt is characterized in that it is provided with a tension mechanism that operates to apply tension and temporarily separate the tensioner from the V-belt in response to an intake pipe negative pressure signal when deceleration is performed from a high-speed running state so as not to apply tension. Reduction device for continuously variable transmission. 2. The tension mechanism is provided with a tensioner at one end of a lever that rotates around a fulcrum, and a push rod of an actuator is connected to the lever to apply tension to the V-belt during low-speed driving conditions rather than during high-speed driving conditions. Claim 1 of the registered utility model is a tension mechanism that operates an actuator by negative pressure in the intake pipe and rotates the lever to temporarily separate the tensioner from the V-belt when decelerating from a high-speed running state. V-belt continuously variable transmission speed reduction device.