JPS58191404U

JPS58191404U - valve device

Info

Publication number: JPS58191404U
Application number: JP8930582U
Authority: JP
Inventors: 正久河村; 良太大橋; 源吉井
Original assignee: 株式会社神崎高級工機製作所
Priority date: 1982-06-15
Filing date: 1982-06-15
Publication date: 1983-12-20

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図はこの考案の一実施例を装備したフロントローダ
の概略斜視図、第２図は同フロントローダの要部の概略
側面図、第３図は上記一実施例を含む油圧回路の回路図
、第４図は上記実施例の縦断面図、第５図は第４図の■
−■線に沿う縦断面図、第６図及び第７図はそれぞれ、
第５図のＶＩ−■線及び■−■線に沿う横断面図である
。１８・・・・・・バルブ装置、１９・・・・・・第１の
コントロールバルブ、１９Ａ・・・…スプール、２０…
…第２のコントロールバルブ２７・・・・・・キャリーオーバポート、３１・・・・
・・給油回路、３２．３３・・・・・・給油回路、３６
・・・・・・圧力補償弁、３８・・・・・・第３のコン
トロールバルブ、３８Ａ・・・・・・スプール、３９Ａ
，３９Ｂ，３９Ｃ．３９Ｄ。３９Ｅ・・・・・・ハウジングユニット、４０・・・・
・・連結螺杆、４１Ｐ・・・・・・ポンプポート、４１
Ｔ・・・・・・タンクポート、４１Ｕ．４１Ｄ・・・・
・・シリンダポート、４１１、４１１［・・・・・・シ
リンダポート、４３・・・・・・油通路、４４・・・・
・・油通路、４５・・・・・・油通路穴、４６・・・・
・・油通路、４７・・・・・・溝穴、４８・・・・・・
油通路、４９・・・・・・油通路、５０Ａ，５０Ｂ・・
・・・・油通路、５１・・・・・・油通路、５２Ａ，５
２Ｂ・・・・・・油通路、５３Ａ，５３Ｂ・・・・・・
油通路、６４・・・・・・油通路、５５・・・・・・油
通路、５６・・・・・・油通路、５７・・・・・・油通
路、５８・・・・・・油通路、５９Ａ，５９Ｂ・・・・
・・油通路、６０・・・・・・パイプ端嵌合穴、６０ａ
・・・・・・段部、６１・・・・・・パイプ端嵌合穴、
６２・・・・・・パイプ。Fig. 1 is a schematic perspective view of a front loader equipped with an embodiment of this invention, Fig. 2 is a schematic side view of the main parts of the front loader, and Fig. 3 is a circuit diagram of a hydraulic circuit including the above embodiment. , FIG. 4 is a vertical cross-sectional view of the above embodiment, and FIG.
- The vertical cross-sectional view along line ■, Figures 6 and 7 are, respectively,
6 is a cross-sectional view taken along lines VI-■ and II-■ in FIG. 5. FIG. 18... Valve device, 19... First control valve, 19A... Spool, 20...
...Second control valve 27...Carryover port, 31...
...Oil supply circuit, 32.33...Oil supply circuit, 36
...Pressure compensation valve, 38...Third control valve, 38A...Spool, 39A
, 39B, 39C. 39D. 39E...Housing unit, 40...
...Connection screw, 41P...Pump port, 41
T...Tank port, 41U. 41D...
... Cylinder port, 411, 411 [... Cylinder port, 43... Oil passage, 44...
...Oil passage, 45...Oil passage hole, 46...
...Oil passage, 47...Slot hole, 48...
Oil passage, 49...Oil passage, 50A, 50B...
...Oil passage, 51...Oil passage, 52A, 5
2B...Oil passage, 53A, 53B...
Oil passage, 64... Oil passage, 55... Oil passage, 56... Oil passage, 57... Oil passage, 58... Oil passage, 59A, 59B...
...Oil passage, 60...Pipe end fitting hole, 60a
...Stepped portion, 61...Pipe end fitting hole,
62...Pipe.

Claims

[Scope of utility model registration request]

A valve housing is a valve housing device in which a plurality of housing units are stacked and connected by connecting screws to form a valve housing, and the valve housing is stacked one after the other and the valves in the next housing unit are skipped over. The oil passage leading to the valve in the subsequent housing unit is passed through another oil passage provided in the housing unit of the next stage along the housing unit stacking direction, and the oil passage is connected to the housing unit of the above-mentioned housing unit one after another. A valve device characterized in that it is formed of a pipe which is sandwiched between housing units of stages and whose cross-sectional area is smaller than the cross-sectional area of the oil passage of the above-mentioned function.