JPS6064008U - 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]

図面は杢考案に係る農用トラクタの実施例を示し、第１
図は前向き作業状態の徊面図、第２図は前向き作業然態
や平面図、第３図は後向ぎ作業状態の側面図、第４図は
後向き作業状態の平面図、　　　−第５図はシリンダ配
設部の断面図、第６図は操作レバー配設部の平面図、第
７図は油圧回路図、第一８図はコントロールバルブの断
面図である。 １ａｉｂ−・・前車輪、２ａ、２ｂ・・・後車輪、３・
・・ミッションケース、４・・・運転座席、５・・・ハ
ンドル、７ａ、７ｂ・・・リフトアーム、１１．２２・
・・作業装置、３０・・・油圧シリンダ、３１・・・コ
ントロールバルブ、３３−スプール、３６…操作レバー
。The drawings show an example of the agricultural tractor according to Mokura's invention, and the first
The figure is a side view of the forward-facing working state, Fig. 2 is a front view of the forward-facing working state and a plan view, Fig. 3 is a side view of the backward-facing working state, and Fig. 4 is a plan view of the backward-facing working state. 6 is a sectional view of the cylinder installation part, FIG. 6 is a plan view of the operating lever installation part, FIG. 7 is a hydraulic circuit diagram, and FIG. 18 is a sectional view of the control valve. 1aib-...Front wheel, 2a, 2b...Rear wheel, 3.
...Mission case, 4...Driver's seat, 5...Handlebar, 7a, 7b...Lift arm, 11.22.
... Working device, 30... Hydraulic cylinder, 31... Control valve, 33-Spool, 36... Operation lever.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 左右一対の操向型部車輪１ａ、１ｂ及び非操向型後車輪
２ａ、２ｂを有する走行機体の後部を形成するミッショ
ンケース３に、作業装置１１，２２を昇降操作自在に連
結するリフトアーム７ａｅ７ｂを上下揺動自在に取付け
ると共に、このリファｉＪＵ；（７）：：：”／塁ｉζ
＝２＝３：を内装し、前記前車輪１ａ、ｌｂを操向操作
するハンドル５を、前記ミッションケース３の前方と前
記ミッションケース３の上方に付換え自在に設け、運転
座席４を、前記コントロールバルブ３！の上方に前向春
に位置する状態と、前記ミッションケース３の前方に後
向きに位置する状態に付換え自在に設けた農用トラクタ
であって、前記コントロールバルブ３１のスプール３３
をバルブ本体から前方に突出させ、前記リフトアーム７
ａ、７ｂの操作レバー３６を、前記ミッションケース３
の前記コントロールバルブ３１より前方に位置す　　−
る箇所に取付けると共に、前記スプール３３に機　　　
□械連動させである農用トラクタ。A lift arm 7ae7b that connects the working devices 11 and 22 to a mission case 3 forming the rear part of the traveling aircraft having a pair of left and right steering type wheels 1a, 1b and non-steering type rear wheels 2a, 2b so as to be able to move up and down. At the same time as attaching it so that it can swing up and down, this Ref iJU;
=2=3: is installed inside, a handle 5 for steering the front wheels 1a, lb is provided in a freely replaceable manner in front of the mission case 3 and above the mission case 3, and the driver's seat 4 is installed in the Control valve 3! The agricultural tractor is provided with a spool 33 of the control valve 31 that can be freely changed between a forward spring position above the transmission case 3 and a backward spring position in front of the transmission case 3.
protrudes forward from the valve body, and the lift arm 7
The operation levers 36 of a and 7b are connected to the mission case 3.
located in front of the control valve 31 of -
At the same time, the machine is attached to the spool 33.
□ Agricultural tractors that are mechanically linked.