JPS644969U - - Google Patents

Description

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

第１図は本考案の電磁油圧弁の実施例を示す縦
断面図である。第２図及び第３図はそれぞれ第１
図における電磁油圧弁の副スプール１１ｂと、リ
ング状シリンダ部１０ｂとを、分解して示す外観
斜視図である。第４図は本考案の実施例及び従来
の電磁油圧弁による電流値ＩＡに対する圧力流体
の制御圧力Ｐとの圧力制御特性ＰＡを示す図であ
る。第５図は従来の電磁油圧弁の構成を示す縦断
面図である。 １……流体圧力制御部、１０……ハウジング、
１０ｂ……リング状シリンダ部、１１……スプー
ル、１２……付勢部材、１１ａ……主スプール、
１１ｂ……副スプール、１００ａ……一端開口、
１００ｂ……他端開口、１３……蓋部、２……ソ
レノイド部。 FIG. 1 is a longitudinal sectional view showing an embodiment of the electrohydraulic valve of the present invention. Figures 2 and 3 are the first
It is an external perspective view which disassembles and shows the sub spool 11b of the electrohydraulic valve shown in the figure, and the ring-shaped cylinder part 10b. FIG. 4 is a diagram showing the pressure control characteristic PA of the control pressure P of the pressure fluid with respect to the current value IA of the embodiment of the present invention and the conventional electromagnetic hydraulic valve. FIG. 5 is a longitudinal sectional view showing the configuration of a conventional electrohydraulic valve. 1... Fluid pressure control section, 10... Housing,
10b...Ring-shaped cylinder part, 11...Spool, 12...Biasing member, 11a...Main spool,
11b... Sub-spool, 100a... One end open,
100b...Other end opening, 13...Lid part, 2...Solenoid part.

Claims (1)

【実用新案登録請求の範囲】 (1) 一端開口の軸孔と該軸孔を通つて連通する
圧力流体導入孔と圧力流体導出孔、該軸孔に連通
する制御流体導入孔とをもつハウジンングと、該
軸孔内に摺動自在に保持され該圧力流体導入孔と
該圧力流体導出孔の連通を制御する制御弁と該軸
孔内に該制御流体導入孔と連通する制御圧力室を
形成するピストン部とをもつスプールと、該ハウ
ジンング内に保持され該スプールを軸方向の一方
向に付勢する付勢部材とからなる流体圧力制御部
と、 該ハウジングの該一端開口側に装着され、該ス
プールを該付勢部材の付勢力に抗して吸引付勢す
るソレノイド部とからなる電磁油圧弁において、 上記ハウジンングは上記軸孔を有するハウジン
ング本体と、該ハウジンング本体の該軸孔に固定
され上記スプールの上記ピストン部が摺接するリ
ング状シリンダ部とからなることを特徴とする電
磁油圧弁。 (2) 上記スプールは上記制御弁をもつ主スプー
ルと該主スプールと独立し上記付勢部材により該
主スプールに当接され、上記ピストン部をもつ副
スプールとよりなる実用新案登録請求の範囲第１
項記載の電磁油圧弁。 (3) 上記ハウジンング本体は上記一端開口の他
端側に上記シリンダ部を挿入する他端開口をもつ
とともに該他端開口を閉じる蓋部をもつ実用新案
登録請求の範囲第１項記載の電磁油圧弁。[Claims for Utility Model Registration] (1) A housing having a shaft hole that is open at one end, a pressure fluid introduction hole and a pressure fluid outlet hole that communicate through the shaft hole, and a control fluid introduction hole that communicates with the shaft hole; , a control valve that is slidably held in the shaft hole and controls communication between the pressure fluid introduction hole and the pressure fluid outlet hole, and a control pressure chamber that communicates with the control fluid introduction hole in the shaft hole. a fluid pressure control unit including a spool having a piston portion; and a biasing member held within the housing and biasing the spool in one axial direction; An electromagnetic hydraulic valve comprising a solenoid section that attracts and biases the spool against the biasing force of the biasing member, wherein the housing includes a housing body having the shaft hole, and a housing that is fixed to the shaft hole of the housing body and is fixed to the shaft hole of the housing body. An electromagnetic hydraulic valve comprising a ring-shaped cylinder portion in sliding contact with the piston portion of the spool. (2) The spool is comprised of a main spool having the control valve, and a sub-spool that is independent of the main spool and is brought into contact with the main spool by the biasing member, and has the piston portion. 1
Electrohydraulic valve as described in section. (3) The electromagnetic hydraulic pressure according to claim 1, wherein the housing body has an opening at the other end into which the cylinder section is inserted into the other end of the opening at one end, and a lid section that closes the opening at the other end. valve.