JPH0221375U

JPH0221375U -

Info

Publication number: JPH0221375U
Application number: JP9468188U
Authority: JP
Priority date: 1988-07-18
Filing date: 1988-07-18
Publication date: 1990-02-13
Anticipated expiration: 2003-07-18
Also published as: JPH0749148Y2

Description

[Brief explanation of drawings]

第１，２図は本考案を具体化した一実施例を示
し、第１図はスプール弁全体の側断面図、第２図
ａは弁体を一方の切換位置へ切換配置した状態を
示す要部拡大側断面図、第２図ｂは弁体の切換途
中の状態を示す要部拡大側断面図、第２図ｃは弁
体を他方の切換位置へ切換配置した状態を示す要
部拡大側断面図、第３〜５図はいずれも別例を示
すスプール弁全体の側断面図、第６図は別例を示
すスプール弁全体の側断面図、第７図は第６図の
要部拡大側断面図、第８図は別例を示すスプール
弁全体の側断面図、第９図は第８図の要部拡大側
断面図、第１０図、第１１図、第１２図、第１３
図及び第１４図はいずれも別例を示し、第１０図
ａ、第１１図ａ、第１２図ａ、第１３図ａ、第１
４図ａは副シール部の弾性変形前の状態を示す要
部拡大側断面図、第１０図ｂ、第１１図ｂ、第１
２図ｂ、第１３図ｂ、第１４図ｂは副シール部の
弾性変形状態を示す要部拡大側断面図、第１５，
１６，１７，１８図はいずれも主シール部と副シ
ール部とを一体形成した断面形状の別例を示す要
部拡大側断面図である。バルブハウジング…１、入力ポート…１ｂ、出
力ポート…１ｃ，１ｄ、排気ポート…１ｅ１ｆ、
弁体…２，１０，１５、弁座…５，６，７，８、
主シール部…９Ａ，９Ｂ，９Ｃ，９Ｄ，１１Ａ，
１１Ｂ，１１Ｃ，１１Ｄ，１４Ａ，１４Ｂ，１４
Ｃ，１４Ｄ，１６Ａ，１７Ａ，１８Ａ，１９Ａ，
２０Ａ，２０Ｂ，２１Ａ，２１Ｂ、副シール部…
９ａ，９ｂ，９ｃ，９ｄ，１１ａ，１１ｂ，１１
ｃ，１１ｄ，１６ａ，１７ａ，１８ａ，１９ａ，
２０ａ，２０ｂ，２１ａ，２１ｂ、高さ…Ｈ，ｈ
。 Figures 1 and 2 show an embodiment embodying the present invention, Figure 1 is a side sectional view of the entire spool valve, and Figure 2a is a diagram showing the state in which the valve body is switched to one switching position. Figure 2b is an enlarged side sectional view of the main part showing a state in which the valve body is being switched, and Figure 2c is an enlarged side sectional view of the main part showing a state where the valve body has been switched to the other switching position. Cross-sectional views, Figures 3 to 5 are all side sectional views of the entire spool valve showing another example, Figure 6 is a side sectional view of the entire spool valve showing another example, and Figure 7 is an enlarged view of the main parts of Figure 6. 8 is a side sectional view of the entire spool valve showing another example; FIG. 9 is an enlarged side sectional view of the main part of FIG. 8; FIGS. 10, 11, 12, 13.
10 and 14 show other examples, and FIG. 10 a, FIG. 11 a, FIG. 12 a, FIG. 13 a,
Figure 4a is an enlarged side sectional view of the main part showing the state before elastic deformation of the sub-seal part, Figure 10b, Figure 11b, Figure 1
2b, 13b, and 14b are enlarged side sectional views of main parts showing the elastic deformation state of the sub-seal part;
16, 17, and 18 are all enlarged side sectional views of main parts showing other examples of cross-sectional shapes in which the main seal part and the sub-seal part are integrally formed. Valve housing...1, input port...1b, output port...1c, 1d, exhaust port...1e1f,
Valve body...2, 10, 15, valve seat...5, 6, 7, 8,
Main seal part...9A, 9B, 9C, 9D, 11A,
11B, 11C, 11D, 14A, 14B, 14
C, 14D, 16A, 17A, 18A, 19A,
20A, 20B, 21A, 21B, sub seal part...
9a, 9b, 9c, 9d, 11a, 11b, 11
c, 11d, 16a, 17a, 18a, 19a,
20a, 20b, 21a, 21b, height...H, h
.

Claims

[Scope of utility model registration request]

Between the output ports 1c, 1d and the input port 1b, and between the output ports 1c, 1d and the exhaust port 1e,
Main seal parts 9A, 9B, 9C, 9D, 11A, 11B that come into contact with valve seats 5, 6, 7, 8 between 1f
, 11C, 11D, 14A, 14B, 14C, 1
4D, 16A, 17A, 18A, 19A, 20A
, 20B, 21A, 21B as valve bodies 2, 10, 15
The main seal part 9 is attached to the valve seat 5 and 6 between the output ports 1c and 1d and the input port 1b.
A, 9B, 11A, 11B, 14A, 14B, 1
6A, 17A, 20A, 20B, 21A, 21B
and output ports 1c, 1d and exhaust ports 1e, 1
Main seal part 9C that contacts the valve seats 7 and 8 between f.
, 9D, 11C, 11D, 18A, 19A, there is a main seal part 9A, 9B, 9C, 9D, 1 next to the valve seat 5, 6, 7, 8 side of at least one of the main seal parts.
1A, 11B, 11C, 11D, 14A, 14B
, 14C, 14D, 16A, 17A, 18A, 1
Sub-seal parts 9a, 9b, 9c equivalent to or lower than 9A, 20A, 20B, 21A, 21B
, 9d, 11a, 11b, 11c, 11d, 16
a, 17a, 18a, 19a, 20a, 20b,
A spool valve characterized in that 21a and 21b are provided.