JPS63106950U

JPS63106950U -

Info

Publication number: JPS63106950U
Application number: JP19944486U
Authority: JP
Priority date: 1986-12-27
Filing date: 1986-12-27
Publication date: 1988-07-11
Anticipated expiration: 2001-12-27
Also published as: JPH0735155Y2

Description

[Brief explanation of the drawing]

第１図〜第３図は本考案の一実施例を示し、第
１図イはＶベルト型無段変速機の出力軸側の従動
プーリーのベルト張り機構を示す組立構成図、１
図ロは１図イの分解構成図、第２図イ，ロ，ハは
第１図におけるリングとカムドラムとの嵌合状態
を示す展開説明図、第３図はカムフロアとカムド
ラムに形成された溝との嵌合状態を示す展開説明
図、第４図〜第６図は従来例を示し、第４図は従
来のＶベルト型無段変速機の全体構成図、第５図
は第４図の出力軸側のベルト張り機構の構成図、
第６図は従来におけるカムドラムとカムフロアと
の接触状態を示す展開説明図である。１…カバー、２…コロ、３…ドラム、４…フラ
ンジ、６…ドラム、７…バネ、８…カムフロア、
９，１０…カムドラム、９ａ，１０ａ…溝、９ａ
ａ，１０ａａ…斜面、９ｂ，１０ｂ…歯、１１…
リング、１１ａ…リングの歯、１２…キー、６６
…出力軸、７０…固定プーリー、７１…可動プー
リー、Ｖ…Ｖベルト。 1 to 3 show an embodiment of the present invention, and FIG. 1A is an assembled configuration diagram showing a belt tensioning mechanism of a driven pulley on the output shaft side of a V-belt type continuously variable transmission.
Figure B is an exploded configuration diagram of Figure 1 A, Figure 2 A, B, and C are expanded explanatory views showing the fitted state of the ring and cam drum in Figure 1, and Figure 3 is a groove formed in the cam floor and cam drum. FIG. 4 to FIG. 6 show a conventional example, FIG. 4 is an overall configuration diagram of a conventional V-belt type continuously variable transmission, and FIG. Configuration diagram of the belt tensioning mechanism on the output shaft side,
FIG. 6 is an exploded explanatory diagram showing the state of contact between the cam drum and the cam floor in the prior art. 1...cover, 2...roller, 3...drum, 4...flange, 6...drum, 7...spring, 8...cam floor,
9, 10...Cam drum, 9a, 10a...Groove, 9a
a, 10aa... slope, 9b, 10b... tooth, 11...
Ring, 11a...Ring tooth, 12...Key, 66
...output shaft, 70...fixed pulley, 71...movable pulley, V...V belt.

Claims

[Scope of utility model registration request]

A V-groove is formed between a fixed pulley that has a conical surface and is fixed to the input shaft, and a fixed pulley that has a similar conical surface to this fixed pulley, allowing it to move in the axial direction of the input shaft. a driving pulley consisting of a movable pulley attached to the movable pulley and moved in a direction toward and away from the fixed pulley by a moving means; a fixed pulley having a conical surface and fixed to the output shaft;
This movable pulley has a conical surface similar to that of the fixed pulley, and is attached movably in the axial direction of the output shaft by forming a V-groove between it and the fixed pulley, and is moved in a direction toward and away from the fixed pulley by a moving means. The V-belt type continuously variable transmission has a driven pulley consisting of a pulley, and a V-belt wrapped around each V-groove of the driven pulley and the drive pulley, and the rotation of the input shaft is transmitted to the output shaft by changing the speed of the rotation steplessly. In the machine, the driven pulley includes two cam drums each having a groove formed with a different slope in each inclination direction for pressing and fixing the cam floor fixed to the movable pulley in the axial direction of the output shaft, and either of the cam drums A belt tensioning mechanism for a V-belt type continuously variable transmission, characterized by comprising a switching means for fixing the fixed pulley in conjunction with the direction of rotational force.