JPS59100135U

JPS59100135U - Hydraulic control device for hydraulic clutch type transmissions

Info

Publication number: JPS59100135U
Application number: JP12904482U
Authority: JP
Inventors: 俊雄津田; 佐伯　勝実; 源吉井
Original assignee: Kanzaki Kokyukoki Manufacturing Co Ltd
Current assignee: Kanzaki Kokyukoki Manufacturing Co Ltd
Priority date: 1982-08-25
Filing date: 1982-08-25
Publication date: 1984-07-06
Also published as: JPS6214439Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来装置の作用を示す模式的なグラフ、第２図
はこの考案の一実施例を示す縦断面図及び油圧回路図、
第３図は同実施例の一部材を示す縦断面図、第４図は皿
バネ特性を示す模式的なグラフ、第４図及び第５図はそ
れぞれ、本案装置の作用を示す模式的なグラフである。１・・・パワーシフト軸、２Ｆ１．　２Ｆ２．　２Ｆ３
．　２Ｒ・・・油圧クラッチ、４・・・給油回路、６・
・・切換弁、７・・・調圧弁、９・・・弁ケース、９ａ
・・・環状段部、１０・・・油圧設定用スプリング、１
１・・・弁体、１２・・・ポンプポート、１３・・・リ
リーフポート、１５・・・制御ピストン、１６・・・絞
り、１７・・・接続回路、２０・・・板バネ。・Ｈ晶酢・　　謄ｔｔｂ犯 Δ−）。Ａ！１　　　−Ｉ　　　　　　　　　　Ｌ−一一一−一一′
″−（７、Fig. 1 is a schematic graph showing the operation of the conventional device, Fig. 2 is a vertical sectional view and hydraulic circuit diagram showing an embodiment of this invention;
FIG. 3 is a vertical cross-sectional view showing a part of the same embodiment, FIG. 4 is a schematic graph showing the disc spring characteristics, and FIGS. 4 and 5 are schematic graphs showing the action of the device of the present invention. It is. 1...Power shift shaft, 2F1. 2F2. 2F3
．． 2R... Hydraulic clutch, 4... Oil supply circuit, 6.
...Switching valve, 7...Pressure regulating valve, 9...Valve case, 9a
... Annular stepped portion, 10 ... Oil pressure setting spring, 1
DESCRIPTION OF SYMBOLS 1... Valve body, 12... Pump port, 13... Relief port, 15... Control piston, 16... Throttle, 17... Connection circuit, 20... Leaf spring.・H crystal vinegar・ ttb criminal Δ-). A! 1 -I L-111-11'
″-(7,

Claims

[Scope of utility model registration request]

A control piston that receives the tip of a hydraulic pressure setting spring and increases the strength of the hydraulic pressure setting spring by advancing the piston is provided so as to be able to move forward to a regulated position, and the hydraulic pressure of the oil supply circuit for the hydraulic clutch in a hydraulic clutch type transmission is controlled according to the control piston. A hydraulic control device comprising a pressure regulating valve configured to act behind a control piston through a throttle, wherein the spring load temporarily decreases when the deflection of the hydraulic pressure setting spring increases from a value. A hydraulic control device for a hydraulic clutch type transmission, characterized in that it is constructed of a plurality of disc springs having the characteristics of: