JPS59196006U

JPS59196006U - Draft control device

Info

Publication number: JPS59196006U
Application number: JP9244583U
Authority: JP
Inventors: 押条　雅英
Original assignee: 株式会社クボタ
Priority date: 1983-06-15
Filing date: 1983-06-15
Publication date: 1984-12-26
Also published as: JPH0135126Y2

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 the drawing]

図面は本考案の一実施例を示し、第１図は全体側面図、
第２図は要部の断面側面図、第３図は同断面背面図、第
４図は油圧回路図、第５図は動作説明のための断面側面
図、第６図はスプールの端部側の断面図である。１・・・トラクタ、４・・・プラウ、９・・・油圧装置
、１３・・・ドラフトバルブ、１４・・・ドラフト制御
レバー、１５・・・フィードバックレバー、１８・・・
バルブ本体、１９・・・スプール、２１・・・ケース本
体、２２・・・カバー、２３・・・スプール作動レバー
、２５・・・制御レバー軸、２６・・・フィードバック
レバー軸、２８・・・枢支ピン、３５・・・接当ピン、
３７・・・フィードバック機構、３Ｂ・・・ストッパー
。The drawings show an embodiment of the present invention, and FIG. 1 is an overall side view;
Figure 2 is a sectional side view of the main parts, Figure 3 is a rear sectional view of the same, Figure 4 is a hydraulic circuit diagram, Figure 5 is a sectional side view for explaining operation, and Figure 6 is the end side of the spool. FIG. DESCRIPTION OF SYMBOLS 1... Tractor, 4... Plow, 9... Hydraulic system, 13... Draft valve, 14... Draft control lever, 15... Feedback lever, 18...
Valve body, 19... Spool, 21... Case body, 22... Cover, 23... Spool operating lever, 25... Control lever shaft, 26... Feedback lever shaft, 28... Pivot pin, 35... contact pin,
37... Feedback mechanism, 3B... Stopper.

Claims

[Scope of utility model registration request]

A spool operating lever is provided inside the case to operate the spool of the draft valve in the direction of raising and lowering the work equipment, and a feedback mechanism is linked to the draft control lever and the load sensing device via the control lever shaft and feedback lever shaft, which are attached to the case. In a draft control device in which the spool operating levers are respectively swung, the control lever shaft and the feedback lever shaft are rotatably provided on the same side of the case, and when the draft control lever is operated to the work equipment raising position, A draft control device characterized in that a stopper is provided on a fixed side of the spool operating lever to operate and hold the spool in the upward direction.