JPS6123357U - agricultural tractor - Google Patents

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

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案に係る農用トラクタの実施例を示し、第１
図は油圧駆動系及び制御系を示す概略図、第２図は前部
に作業装置を取付けた農用トラクタである。 ６・・・・・・後部のリフトアーム、１３・・・・・・
前部のリフトアーム、１４・・・・・・油圧シリンダ、
２０・・・・・・制御弁、２１・・・・・・後部の揺動
角検出器、２２・・・・・・前部の揺動角検出器。The drawings show an embodiment of the agricultural tractor according to the present invention.
The figure is a schematic diagram showing a hydraulic drive system and a control system, and FIG. 2 shows an agricultural tractor with a working device attached to the front part. 6... Rear lift arm, 13...
Front lift arm, 14...hydraulic cylinder,
20... Control valve, 21... Rear swing angle detector, 22... Front swing angle detector.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 機体の後部に電気的にポジション制御される油圧駆動式
のリフトアーム６を備えるとともに、機体前部に前装作
業装置昇降用リフトアーム１３を装備し、該前部リフト
アーム１３の駆動用油圧シリンダ１４へ、後部リフトア
ーム用制御弁２０か″ らの圧油を切換え供給可能に構
成し、前記リフトアーム１３に装備した揺動角検出器２
２からの検出信号を、後部リフトアーム６の揺動角検出
器２１からの検出信号に代えて制御回路に入力できる、
よう構成してある農用ト・ユクタ。The rear part of the machine is equipped with a hydraulically driven lift arm 6 whose position is controlled electrically, and the front part of the machine is equipped with a lift arm 13 for lifting and lowering the front loading work device, and a hydraulic cylinder for driving the front lift arm 13. A swing angle detector 2 installed on the lift arm 13 is configured to be able to selectively supply pressure oil from the rear lift arm control valve 20'' to the rear lift arm control valve 20''.
2 can be input to the control circuit in place of the detection signal from the swing angle detector 21 of the rear lift arm 6.
An agricultural toyukta constructed as follows.