JPS6043475U

JPS6043475U - Power steering device for forward and backward moving vehicles

Info

Publication number: JPS6043475U
Application number: JP13268583U
Authority: JP
Inventors: 碇　一泰; 下谷　和久; 純一北村
Original assignee: 株式会社クボタ
Priority date: 1983-08-26
Filing date: 1983-08-26
Publication date: 1985-03-27

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図及び第２図は従来例を示す油圧回路図、第３図乃
至第１０図は本考案の一実施例を示し、第３図は側面図
、第４図はパワーステアリング装置の簡略平面図、第５
図は同油圧回路図、第６図はスイングドローバ−装置の
側面図、第７図は同正面図、第８図は同平面図、第９図
及び第１０図の各図はコーンの刈取作業を示す説明図で
ある。１０・・・トラクタ車体、１２．１８・・・前向運転用
・後向運転用ハンドル、２５・・・前輪（操向輪）、２
９・・・パワーシリンダ、３０．３１・・・前向運転用
・後向運転用ステアリングコントローラー、３３・・・
油圧ポンプ、４６・・・タンク、４７・・・３方切換弁
（制御弁）。Figs. 1 and 2 are hydraulic circuit diagrams showing a conventional example, Figs. 3 to 10 show an embodiment of the present invention, Fig. 3 is a side view, and Fig. 4 is a simplified plan view of the power steering device. Figure, 5th
The figure is the hydraulic circuit diagram, Figure 6 is a side view of the swing drawbar device, Figure 7 is the front view, Figure 8 is the plan view, and Figures 9 and 10 are the corn reaping work. FIG. 10... Tractor body, 12.18... Handle for forward driving/reverse driving, 25... Front wheel (steering wheel), 2
9...Power cylinder, 30.31...Steering controller for forward driving/reverse driving, 33...
Hydraulic pump, 46...Tank, 47...3-way switching valve (control valve).

Claims

[Scope of utility model registration request]

(before controlling the hydraulic oil supplied to the power cylinder)
In a system in which each steering controller for same-thickness diversion and backward driving is operated by each knob for forward driving and backward driving, the return oil passage of each controller is selectively communicated with the tank side. A power steering device for a forward-reverse vehicle, characterized by being equipped with a control valve.