JPH0328221Y2 - - Google Patents
Info
- Publication number
- JPH0328221Y2 JPH0328221Y2 JP1985071206U JP7120685U JPH0328221Y2 JP H0328221 Y2 JPH0328221 Y2 JP H0328221Y2 JP 1985071206 U JP1985071206 U JP 1985071206U JP 7120685 U JP7120685 U JP 7120685U JP H0328221 Y2 JPH0328221 Y2 JP H0328221Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve seat
- iron core
- movable iron
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 229920006351 engineering plastic Polymers 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Magnetically Actuated Valves (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、流体圧または真空圧利用の産業機械
に使用する電磁弁に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a solenoid valve used in industrial machinery that utilizes fluid pressure or vacuum pressure.
従来の電磁弁は、例えば米国特許第3510814号
明細書に示されているように、励磁コイル、それ
を囲む磁性材料製のヨーク及びそれらを弁部と連
結する部材の中心に、非磁性材料製の案内管を貫
設し、この案内管によつて、弁部に対する電磁操
作部の連結時における位置規制を行うと共に、案
内管中に挿入した可動鉄心を案内させている。
Conventional electromagnetic valves, as shown in US Pat. No. 3,510,814, for example, include an excitation coil, a yoke made of a magnetic material surrounding it, and a member made of a non-magnetic material at the center of a member connecting them to the valve part. A guide tube is provided through the valve, and the guide tube regulates the position of the electromagnetic operating section when it is connected to the valve section, and also guides the movable iron core inserted into the guide tube.
しかしながら、上記従来の電磁弁は、部品点数
が増えて組立てに手数を要するばかりでなく、磁
気回路がヨークと可動鉄心間に介在する非磁性材
料製の案内管によつて分断されるために、磁気効
率が低下して電磁操作部の省電力化の妨げとな
り、このため、電磁操作部を小形化することが困
難であつた。 However, the above-mentioned conventional solenoid valve not only requires more time and effort to assemble due to the increased number of parts, but also because the magnetic circuit is separated by a guide tube made of a non-magnetic material interposed between the yoke and the movable core. The magnetic efficiency decreases, which hinders the power saving of the electromagnetic operating section, and it has therefore been difficult to downsize the electromagnetic operating section.
そこで本考案者は、このような問題を解決でき
る改良形の電磁弁として、実願昭59−160012号に
より、電磁操作部を構成する環状の磁気板の中心
孔の縁部両面に筒状凸部を形成し、この筒状凸部
を弁部及び電磁操作部のボビンの中心孔縁部に形
成した凹部に嵌入させるように構成することによ
り、別個の部品として案内管を使用することなく
弁部と電磁操作部の位置規制を簡略化し、且つ、
電磁操作部における磁気回路の分断を防ぐことに
よつて電磁操作部の小形化と省エネルギ化とを可
能にしたものを提案した。 Therefore, as an improved solenoid valve that can solve such problems, the present inventor proposed a cylindrical convex structure on both sides of the edge of the center hole of the annular magnetic plate constituting the electromagnetic operating section, in Utility Application No. 160012/1983. By forming a cylindrical convex part into a recess formed in the center hole edge of the bobbin of the valve part and the electromagnetic operating part, the valve can be constructed without using a guide tube as a separate part. and the electromagnetic operation part, and
We have proposed a system that makes it possible to downsize and save energy in the electromagnetic operating section by preventing the magnetic circuit in the electromagnetic operating section from being separated.
しかしながら、この電磁弁においては、磁気板
の中心孔によつて可動鉄心を摺動案内させるよう
にしているため、金属同士の摺接による摩耗の問
題があり、そのため、上記中心孔の孔面に非磁性
あるいは弱磁性の耐摩耗性あるメツキやコーテイ
ング等を施す必要があつた。 However, in this solenoid valve, since the movable iron core is slidably guided by the center hole of the magnetic plate, there is a problem of wear due to sliding contact between metals. It was necessary to apply non-magnetic or weakly magnetic wear-resistant plating or coating.
〔考案が解決しようとする問題点〕
本考案は、弁本体を金属に対する耐摩耗性の著
しく高い素材によつて形成し、この弁本体に可動
鉄心を案内させるように構成することにより、可
動鉄心の案内管を不要にすると共に、磁気板等に
対する耐摩耗性処理を不要にすることを技術的課
題とするものである。[Problems to be solved by the invention] The invention has a structure in which the valve body is made of a material with extremely high wear resistance against metal, and the movable iron core is guided by the valve body. The technical objective is to eliminate the need for a guide tube and to eliminate the need for abrasion-resistant treatment for magnetic plates and the like.
上記課題を解決するため、本考案は、弁本体に
複数のポートとこれらポート間に位置する弁座と
を設け、該弁座を電磁操作部の可動鉄心により駆
動される弁部材で開閉するようにした電磁弁にお
いて、上記弁本体における電磁操作部との対向面
に上記弁座と同軸をなす凹室部を設け、該凹室部
内に上記可動鉄心の端部を嵌入させると共に、該
凹室部の内側面を可動鉄心の全ストロークを案内
する摺動案内面とし、ポート、弁座、凹室部及び
摺動案内面を有する上記弁本体を、金属に対する
耐摩耗性の高いエンジニヤリングプラスチツクで
一体に形成したことを特徴としている。
In order to solve the above problems, the present invention provides a valve body with a plurality of ports and a valve seat located between these ports, and the valve seat is opened and closed by a valve member driven by a movable iron core of an electromagnetic operation section. In the electromagnetic valve, a recessed chamber coaxial with the valve seat is provided on the face of the valve body facing the electromagnetic operating section, and the end of the movable iron core is fitted into the recessed chamber, and the end of the movable core is fitted into the recessed chamber. The inner surface of the part is a sliding guide surface that guides the entire stroke of the movable iron core, and the valve body, which has a port, a valve seat, a concave chamber, and a sliding guide surface, is made of engineering plastic that has high wear resistance against metal. It is characterized by being formed in one piece.
可動鉄心は、弁本体の凹室部内に端部を挿入し
た状態で組付けられ、その全ストロークを該凹室
部の摺動案内面によつて案内される。従つて、電
磁操作部に可動鉄心の摺動を案内するための非磁
性材製の案内部材を設ける必要がないので、案内
部材の介在による磁気効率の低下がない。
The movable core is assembled with its end inserted into the recessed chamber of the valve body, and its entire stroke is guided by the sliding guide surface of the recessed chamber. Therefore, there is no need to provide a guide member made of a non-magnetic material for guiding the sliding movement of the movable core in the electromagnetic operation section, so there is no decrease in magnetic efficiency due to the intervention of the guide member.
また、可動鉄心の摺動案内面を弁本体に設けた
ので、電磁操作部における磁気板等の中心孔の孔
面に、耐摩耗処理を施す必要がない。 Furthermore, since the sliding guide surface of the movable iron core is provided on the valve body, there is no need to apply anti-wear treatment to the hole surface of the center hole of the magnetic plate or the like in the electromagnetic operating section.
以下、本考案の実施例を図面に基づいて説明す
る。第１図は本考案の第１実施例を示すもので、
１は電磁操作部、２は弁部を示している。
Hereinafter, embodiments of the present invention will be described based on the drawings. FIG. 1 shows the first embodiment of the present invention.
Reference numeral 1 indicates an electromagnetic operating section, and 2 indicates a valve section.
上記電磁操作部１は、励磁コイル５を巻着した
非磁性材料製のボビン４と、該ボビン４の中心孔
６の一側に嵌着固定した固定鉄心７と、中心孔６
の他側に軸方向移動自在に挿嵌した可動鉄心８
と、これらの固定鉄心７及び可動鉄心８と協同し
て磁路を構成する磁気枠１０及び磁気板１１とを
備えている。 The electromagnetic operation unit 1 includes a bobbin 4 made of a non-magnetic material around which an excitation coil 5 is wound, a fixed iron core 7 fitted and fixed to one side of a center hole 6 of the bobbin 4, and a center hole 6.
A movable core 8 is inserted into the other side so as to be movable in the axial direction.
and a magnetic frame 10 and a magnetic plate 11 that cooperate with the fixed iron core 7 and the movable iron core 8 to form a magnetic path.
上記可動鉄心８は、その外周面に設けた段部８
ａとボビン４の中心孔６の中間位置に設けた突起
６ａとの間に復帰ばね９を縮設し、この復帰ばね
９によつて固定鉄心７から離間する方向に付勢さ
せており、また、上記ボビン４の弁部２との対向
面に当接する環状の磁気板１１は、ボビン４の中
心孔６と略同径の中心孔１２を有し、該中心孔１
２の周縁に、それぞれ磁気板１１と直交する方向
に突出する筒状凸部１２ａ，１２ｂを形成し、そ
の一方の凸部１２ａを上記ボビン４に設けた凹段
部１３に嵌入させることにより、上記中心孔１２
とボビン４の中心孔６とが同心をなすように該磁
気板１１の位置決めを行つており、該磁気板１１
の外周面は、上記ボビン４を覆う磁気枠１０に密
着せしめている。 The movable iron core 8 has a stepped portion 8 provided on its outer peripheral surface.
A return spring 9 is compressed between a and a protrusion 6a provided at an intermediate position of the center hole 6 of the bobbin 4, and the return spring 9 biases the bobbin in a direction away from the fixed iron core 7. , the annular magnetic plate 11 that comes into contact with the surface of the bobbin 4 facing the valve portion 2 has a center hole 12 having approximately the same diameter as the center hole 6 of the bobbin 4;
By forming cylindrical convex portions 12a and 12b protruding in a direction orthogonal to the magnetic plate 11, respectively, on the peripheral edge of the bobbin 2, and fitting one of the convex portions 12a into the concave stepped portion 13 provided on the bobbin 4, The center hole 12
The magnetic plate 11 is positioned so that the center hole 6 of the bobbin 4 and the center hole 6 of the bobbin 4 are concentric with each other.
The outer circumferential surface of the bobbin 4 is brought into close contact with the magnetic frame 10 that covers the bobbin 4.
一方、上記弁部２における弁本体１４は、金属
に対する耐摩耗性が著しく高いエンジニヤリング
プラスチツク（ナイロン、ポリアセタール、
PBTなどにガラス、カーボン等の補強材を含有
させたもの）で形成し、該弁本体１４には、入力
ポート１５と出力ポート１６、及び排出ポート１
７を設けると共に、入力ポート１５と出力ポート
１６との間に位置する第１弁座１８、及び出力ポ
ート１６と排出ポート１７との間に位置する第２
弁座１９を同軸上において互いに背向状態に配設
し、該弁本体１４における電磁操作部１の取付面
には、上記第１弁座１８が開口する弁室兼用の凹
室部２０を該第１弁座１８と同軸位置に形成し、
また上記取付面と反対側の面には、第２弁座１９
が開口する弁室２１を形成し、これらの凹室部２
０と弁室２１との間に複数の通孔２２を設けてい
る。 On the other hand, the valve body 14 of the valve portion 2 is made of engineering plastics (nylon, polyacetal, etc.) that have extremely high wear resistance against metals.
The valve body 14 includes an input port 15, an output port 16, and a discharge port 1.
7, a first valve seat 18 located between the input port 15 and the output port 16, and a second valve seat located between the output port 16 and the discharge port 17.
The valve seats 19 are disposed coaxially and facing each other, and a concave chamber portion 20 which also serves as a valve chamber and which the first valve seat 18 opens is provided on the mounting surface of the electromagnetic operating portion 1 of the valve body 14. formed in a coaxial position with the first valve seat 18;
In addition, a second valve seat 19 is provided on the surface opposite to the mounting surface.
These concave chambers 2 form a valve chamber 21 that opens.
A plurality of through holes 22 are provided between the valve chamber 21 and the valve chamber 21.
上記凹室部２０及び弁室２１には、第１弁座１
８及び第２弁座１９を開閉する第１弁部材２３及
び第２弁部材２４がそれぞれ配設されており、こ
のうち第１弁部材２３は、凹室部２０内に端部を
挿嵌せしめられた上記可動鉄心８の端面に埋設さ
れ、また第２弁部材２４は、ばね座２５との間に
縮設した弁ばね２６によつて第２弁座１９を閉鎖
する方向に付勢されており、この第２弁部材２４
と上記可動鉄心８との間には、上記通孔２２を貫
通する押棒２７を架設している。この押棒２７の
長さは、両弁座１８，１９の弁座間距離より若干
長目に形成されている。 The concave chamber portion 20 and the valve chamber 21 include a first valve seat 1
A first valve member 23 and a second valve member 24 which open and close the valve seat 19 and the second valve seat 19 are respectively provided. The second valve member 24 is biased in a direction to close the second valve seat 19 by a valve spring 26 which is compressed between the second valve member 24 and the spring seat 25. This second valve member 24
A push rod 27 passing through the through hole 22 is installed between the movable iron core 8 and the movable iron core 8. The length of this push rod 27 is formed to be slightly longer than the distance between the valve seats 18 and 19.
而して、上記凹室部２０は、磁気板１１の中心
孔１２と同径かそれより僅かに小径に形成し、そ
の内側面を可動鉄心８の全ストロークにおいてそ
れを摺動案内する案内面２８としており、該凹室
部２０の口縁には拡径段部２９を形成し、この拡
径段部２９に磁気板１１の凸部１２ｂを嵌合係止
させている。 The recessed chamber 20 is formed to have the same diameter as or slightly smaller than the center hole 12 of the magnetic plate 11, and its inner surface serves as a guide surface for slidingly guiding the movable iron core 8 during its entire stroke. 28, an enlarged diameter stepped portion 29 is formed at the mouth edge of the recessed chamber portion 20, and the convex portion 12b of the magnetic plate 11 is fitted and locked into this enlarged diameter stepped portion 29.
なお、この凹室部２０の側壁には、第２図に示
すように複数の溝３０を一定間隔で縦設すること
もできる。 Note that a plurality of grooves 30 may be vertically provided at regular intervals on the side wall of the recessed chamber portion 20, as shown in FIG.
上記構成を有する電磁弁において、コイル５に
通電すると、第１弁座１８が開放すると共に第２
弁座１９が閉鎖し、入力ポート１５と出力ポート
１６とが連通して排出ポート１７が遮断される。
コイル５への通電を断つと、第１図の切換状態と
なり、入力ポート１５が遮断されて出力ポート１
６と排出ポート１７が連通する。 In the solenoid valve having the above configuration, when the coil 5 is energized, the first valve seat 18 opens and the second valve seat 18 opens.
Valve seat 19 closes, input port 15 and output port 16 communicate with each other, and discharge port 17 is blocked.
When the current to the coil 5 is cut off, the switching state shown in FIG. 1 is achieved, the input port 15 is cut off, and the output port 1
6 and the discharge port 17 communicate with each other.
上記切換時に、可動鉄心８は凹室部２０の案内
面２８に摺接し、この凹室部２０によつて全スト
ロークにわたり移動が案内される。従つて案内管
が不要であり、また、磁気板１１と案内のために
摺接することがないため、該磁気板１１の中心孔
１２の孔面に耐摩耗処理を施す必要がない。な
お、この磁気板１１における中心孔１２の孔面に
は、耐摩耗を目的としない非磁性または弱磁性の
薄膜を必要に応じてメツキやコーテイング等によ
り付着させておいてもよい。 At the time of the above switching, the movable iron core 8 comes into sliding contact with the guide surface 28 of the recessed chamber 20, and its movement is guided by the recessed chamber 20 over the entire stroke. Therefore, there is no need for a guide tube, and since there is no sliding contact with the magnetic plate 11 for guidance, there is no need to apply anti-wear treatment to the hole surface of the center hole 12 of the magnetic plate 11. Note that a non-magnetic or weakly magnetic thin film not intended for wear resistance may be attached to the hole surface of the center hole 12 in the magnetic plate 11 by plating, coating, etc., if necessary.
また、上記第１弁座１８と凹室部２０とが同軸
に形成されているため、可動鉄心８が第１弁座１
８に対してその軸方向に正しく移動することにな
り、そのため、弁部材２３，２４の傾きが防止さ
れて密封性が向上し、弁機能の信頼性が向上する
ことになる。 Further, since the first valve seat 18 and the recessed chamber portion 20 are formed coaxially, the movable iron core 8 is connected to the first valve seat 1.
8 in the axial direction, thereby preventing the valve members 23 and 24 from tilting, improving the sealing performance and improving the reliability of the valve function.
第３図は、弁室３２内に第１弁座３３と第２弁
座３４とを対向状態に形成し、両弁座３３，３４
間にそれらを開閉する共通の弁部材３５を配設し
て、該弁部材３５を押棒３６により可動鉄心３７
に連結したもので、凹室部３８に弁室を兼用させ
ることなく、可動鉄心３７の案内専用とし、且
つ、弁部材３５を可動鉄心３７内に収納すること
なく、それとは別に設けた場合を例示するもので
ある。 In FIG. 3, a first valve seat 33 and a second valve seat 34 are formed in an opposing state in a valve chamber 32, and both valve seats 33, 34 are formed in an opposing state.
A common valve member 35 for opening and closing them is disposed between them, and the valve member 35 is connected to the movable iron core 37 by a push rod 36.
In this case, the concave chamber 38 is used exclusively for guiding the movable core 37 without serving as a valve chamber, and the valve member 35 is not housed within the movable core 37 but is provided separately from it. This is an example.
上記各実施例では、３ポート弁について説明し
たが、本考案の構成は２ポート電磁弁にも適用で
きることはいうまでもない。 In each of the above embodiments, a 3-port valve has been described, but it goes without saying that the configuration of the present invention can also be applied to a 2-port solenoid valve.
本考案は、ポート、弁座、凹室部及び摺動案内
面を有する弁本体を、金属に対する耐摩耗性の著
しく高いエンジニヤリングプラスチツクによつて
一体に形成し、この弁本体に設けた摺動案内面に
よつて可動鉄心の摺動を案内させるようにしたの
で、電磁操作部に案内管等を非磁性材製の案内部
材を設ける必要がないばかりでなく、磁気板の中
心孔などに耐摩耗性処理を施す必要がなく、その
ため、部品数及び加工数を減少して構造の簡略化
と低コスト化とを実現することができる。
In this invention, the valve body, which has a port, a valve seat, a concave chamber, and a sliding guide surface, is integrally formed with an engineered plastic that has extremely high wear resistance against metal. Since the sliding movement of the movable core is guided by the guide surface, there is no need to provide a guide tube or other guide member made of non-magnetic material in the electromagnetic operation section, and it is also resistant to the center hole of the magnetic plate. There is no need to perform abrasive treatment, and therefore the number of parts and the number of processes can be reduced, simplifying the structure and lowering costs.
また、上記弁本体を、金属に対する耐摩耗性の
高いエンジニヤリングプラスチツクで一体に形成
したので、凹室部及び摺動案内面の形成及び弁本
体と電磁操作部との組付けが容易であり、かつ摺
動部の摩耗が小さいので寿命を長くできる。 In addition, since the valve body is integrally formed of engineering plastic that has high wear resistance against metal, it is easy to form the recessed chamber and the sliding guide surface and to assemble the valve body and the electromagnetic operation part. In addition, since there is little wear on the sliding parts, the service life can be extended.
また、本考案においては、磁気回路を分断する
案内管が存在しないので磁気損失が極めて少なく
なり、電磁操作部を省電力化して電磁弁を小形化
することができる。 Furthermore, in the present invention, since there is no guide tube that divides the magnetic circuit, magnetic loss is extremely reduced, and the electromagnetic operating section can save power and the electromagnetic valve can be made smaller.
第１図は本考案の第１実施例の縦断正面図、第
２図は本考案の他の実施例の要部斜視図、第３図
は本考案のさらに他の実施例の要部断面図であ
る。
１……電磁操作部、８，３７……可動鉄心、１
４……弁本体、１５……入力ポート、１６……出
力ポート、１７……排出ポート、１８，３３……
第１弁座、１９，３４……第２弁座、２０……凹
室部、２３……第１弁部材、２４……第２弁部
材、２８……案内面、３５……弁部材。
Fig. 1 is a longitudinal sectional front view of a first embodiment of the present invention, Fig. 2 is a perspective view of a main part of another embodiment of the invention, and Fig. 3 is a sectional view of a main part of yet another embodiment of the invention. It is. 1... Electromagnetic operation section, 8, 37... Movable iron core, 1
4... Valve body, 15... Input port, 16... Output port, 17... Discharge port, 18, 33...
First valve seat, 19, 34... Second valve seat, 20... Concave chamber, 23... First valve member, 24... Second valve member, 28... Guide surface, 35... Valve member.
Claims (1)
する弁座とを設け、該弁座を電磁操作部の可動鉄
心により駆動される弁部材で開閉するようにした
電磁弁において、 上記弁本体における電磁操作部との対向面に上
記弁座と同軸をなす凹室部を設け、該凹室部内に
上記可動鉄心の端部を嵌入させると共に、該凹室
部の内側面を可動鉄心の全ストロークを案内する
摺動案内面とし、ポート、弁座、凹室部及び摺動
案内面を有する上記弁本体を、金属に対する耐摩
耗性の高いエンジニヤリングプラスチツクで一体
に形成したことを特徴とする電磁弁。[Claim for Utility Model Registration] An electromagnetic device in which a valve body is provided with a plurality of ports and a valve seat located between these ports, and the valve seat is opened and closed by a valve member driven by a movable iron core of an electromagnetic operating section. In the valve, a concave chamber coaxial with the valve seat is provided on the face of the valve body facing the electromagnetic operating section, and the end of the movable iron core is fitted into the concave chamber, and the inside of the concave chamber is fitted. The side surface is a sliding guide surface that guides the entire stroke of the movable iron core, and the valve body, which has a port, valve seat, recessed chamber, and sliding guide surface, is integrally formed of engineering plastic that has high wear resistance against metal. A solenoid valve characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985071206U JPH0328221Y2 (en) | 1985-05-14 | 1985-05-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985071206U JPH0328221Y2 (en) | 1985-05-14 | 1985-05-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61186872U JPS61186872U (en) | 1986-11-21 |
| JPH0328221Y2 true JPH0328221Y2 (en) | 1991-06-18 |
Family
ID=30608481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985071206U Expired JPH0328221Y2 (en) | 1985-05-14 | 1985-05-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0328221Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3857094B2 (en) * | 2001-09-04 | 2006-12-13 | Ｓｍｃ株式会社 | solenoid valve |
| EP1318340B1 (en) * | 2001-12-04 | 2006-02-01 | SMC Kabushiki Kaisha | Solenoid-operated valve |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1112144A (en) * | 1965-05-12 | 1968-05-01 | Automatic Switch Co | Solenoid operated valves |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5931977Y2 (en) * | 1978-12-21 | 1984-09-08 | 株式会社デンソー | Solenoid valve for fluid control |
| JPS56143676U (en) * | 1980-03-29 | 1981-10-29 |
-
1985
- 1985-05-14 JP JP1985071206U patent/JPH0328221Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1112144A (en) * | 1965-05-12 | 1968-05-01 | Automatic Switch Co | Solenoid operated valves |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61186872U (en) | 1986-11-21 |
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