JPH0348403U - - Google Patents

Description

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

第１図乃至第７図は本考案の一実施例を示すも
ので、第１図は油圧回路図、第２図は弁体の正面
図、第３図は弁体の背面図、第４図は弁体の側面
図、第５図は弁体の平面図、第６図は切換弁を“
オープン位置”に切換えた状態における弁体の縦
断正面図、第７図は切換弁を“シヤツト位置”に
切換えた状態における弁体の縦断正面図、第８図
は従来例の油圧回路図である。 ７……オイルポンプ、１３……後部作業機駆動
用油圧装置、１８……後部作業機用油圧回路、２
１……切換弁、３５……前部作業機駆動用油圧装
置、３８，４３……前部作業機用油圧回路。 Figures 1 to 7 show an embodiment of the present invention; Figure 1 is a hydraulic circuit diagram, Figure 2 is a front view of the valve body, Figure 3 is a rear view of the valve body, and Figure 4 is a diagram of the hydraulic circuit. is a side view of the valve body, Figure 5 is a plan view of the valve body, and Figure 6 is a diagram of the switching valve.
FIG. 7 is a longitudinal sectional front view of the valve body when the switching valve is switched to the "open position," FIG. 7 is a longitudinal sectional front view of the valve body when the switching valve is switched to the "shut position," and FIG. 8 is a hydraulic circuit diagram of a conventional example. 7...Oil pump, 13...Hydraulic system for driving rear working machine, 18...Hydraulic circuit for rear working machine, 2
1...Switching valve, 35...Hydraulic system for driving front work machine, 38, 43...Hydraulic circuit for front work machine.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 前部作業機駆動用油圧装置により駆動される前
部作業機と後部作業機駆動用油圧装置により駆動
される後部作業機とを連結したトラクタにおいて
、前記前部作業機駆動用油圧装置に接続された前
部作業機用油圧回路を封止するとともに前記後部
作業機駆動用油圧装置に接続された後部作業機用
油圧回路とオイルポンプとを連通する切換位置を
有する切換弁を設けたことを特徴とするトラクタ
の油圧取出切換装置。 In a tractor in which a front work machine driven by a front work machine drive hydraulic system and a rear work machine driven by a rear work machine drive hydraulic system are connected, the front work machine is connected to the front work machine drive hydraulic system. The present invention is characterized by being provided with a switching valve having a switching position that seals the hydraulic circuit for the front working machine and communicates the oil pump with the hydraulic circuit for the rear working machine connected to the hydraulic system for driving the rear working machine. Hydraulic pressure output switching device for tractors.