JPS5945366U - directional valve - 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) [Abstract] 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 drawings]

第１図は従来の方向切換弁を示す縦断面図、第２図は従
来例と本案実施例の流量特性比較図、第３図Ａは本案の
第１実施例を示す縦断面図、第３図Ｂは第３図Ａの■−
■断面図、第４図は第３図Ａの作用説明図、第５図は第
３図Ａの他の作用説明図、第６図Ａは本案の第２実施例
を示す縦断面図、第６図Ｂは第６図ＡのＶｌ−ＶＩ断面
図、第６図Ｃは第６図ＡのＶＩ−ＶＩ断面相当位置にお
ける他の実施例図である。 １ニスプール、２：弁本体、３：流入ポート、４：流出
ポート、５：凹溝、７．７’、７″　二通油穴、８．８
’、８”　　：絞り。Fig. 1 is a longitudinal sectional view showing a conventional directional control valve, Fig. 2 is a comparison diagram of flow characteristics of the conventional example and the embodiment of the present invention, Fig. 3A is a longitudinal sectional view showing the first embodiment of the invention, Figure B is ■- of Figure 3A.
■Cross-sectional view, FIG. 4 is an explanatory diagram of the action of FIG. FIG. 6B is a sectional view taken along the line Vl-VI in FIG. 6A, and FIG. 6C is a view of another embodiment at a position corresponding to the section VI-VI in FIG. 6A. 1 Varnish spool, 2: Valve body, 3: Inflow port, 4: Outflow port, 5: Concave groove, 7.7', 7'' Dual oil hole, 8.8
', 8": Aperture.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 流入ポートと流出ポートを有する弁本体に、前記流入ポ
ートに連通ずる凹溝と前記流出ポートを開閉するランド
部を有するスプールを摺動可能に挿嵌してなる方向切換
弁において、前記スプールにおける前記凹溝に近接した
前記ランド部に前記流出ポートに連通ずる通油穴を設け
、該通油穴を前記凹溝に絞りを介して連通したことに特
徴を有する方向切換弁。　　　１In a directional control valve, a spool having a concave groove communicating with the inflow port and a land portion for opening and closing the outflow port is slidably inserted into a valve body having an inflow port and an outflow port. A directional control valve characterized in that an oil hole communicating with the outflow port is provided in the land portion adjacent to the groove, and the oil hole communicates with the groove via a throttle. 1