JPH0313466B2 - - Google Patents
Info
- Publication number
- JPH0313466B2 JPH0313466B2 JP58163635A JP16363583A JPH0313466B2 JP H0313466 B2 JPH0313466 B2 JP H0313466B2 JP 58163635 A JP58163635 A JP 58163635A JP 16363583 A JP16363583 A JP 16363583A JP H0313466 B2 JPH0313466 B2 JP H0313466B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- control
- converter
- parallel
- control circuit
- 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 - Lifetime
Links
- 239000012530 fluid Substances 0.000 claims description 25
- 238000012790 confirmation Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000013307 optical fiber Substances 0.000 description 9
- 230000003287 optical effect Effects 0.000 description 8
- 238000009795 derivation Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
- F02D41/28—Interface circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
Description
【発明の詳細な説明】
この発明は、流体制御装置に関し、一層詳細に
は複数個の電磁弁を連設した電磁弁マニホールド
において個々の電磁弁の駆動信号と動作確認検出
信号等を一括して送給し、あるいは受容するよう
に構成した流体制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fluid control device, and more specifically, the present invention relates to a fluid control device, and more specifically, in a solenoid valve manifold in which a plurality of solenoid valves are arranged in series, drive signals and operation confirmation detection signals of individual solenoid valves are collectively transmitted. The present invention relates to fluid control devices configured to deliver or receive fluids.
流体制御系において、装置や機械に多数の電磁
弁を使用する時、配管作業の簡易化と取付けスペ
ースの狭小化を図るために電磁弁を連設してマニ
ホールドにより一括したマニホールド式電磁弁が
用いられている。この場合、従来においては、
個々の電磁弁の駆動制御用信号と電磁弁の動作確
認信号とは別異の信号線により送信・受信されて
おり、また電磁弁の駆動用電力線および電磁弁の
動作確認を行うためのリミツトスイツチの駆動用
電力線も夫々別の系を構成していた。 In fluid control systems, when a large number of solenoid valves are used in equipment or machinery, manifold type solenoid valves are used in which solenoid valves are connected in series and integrated into a manifold in order to simplify piping work and reduce installation space. It is being In this case, conventionally,
The drive control signal for each solenoid valve and the operation confirmation signal for the solenoid valve are transmitted and received by different signal lines, and the power line for driving the solenoid valve and the limit switch for checking the operation of the solenoid valve are transmitted and received by different signal lines. The driving power lines also constituted separate systems.
従つて、電力線並びに信号線の数は、連設され
る電磁弁の数により増加し、このため多くの電線
を設ける費用が崇み、また、電線の束が形成され
るために広いスペースが要求される欠点があつ
た。しかもマニホールドはシリンダの近くに配置
されるが、この場合は、機械的振動、高温、電気
的障害等を惹起しやすく環境的に好適とは言えな
い。従つて、斯る場所に多くの電線を配置するこ
とは、種々の故障の原因となる可能性が極めて高
くなる虞れがあつた。 Therefore, the number of power lines and signal lines increases depending on the number of solenoid valves that are installed in series, which increases the cost of installing many electric wires, and also requires a large space because a bundle of electric wires is formed. There were some drawbacks. Furthermore, although the manifold is placed near the cylinder, this is not environmentally friendly as it tends to cause mechanical vibrations, high temperatures, electrical disturbances, etc. Therefore, arranging a large number of electric wires in such a location has a very high possibility of causing various failures.
さらに、産業用ロボツトのように制御部とロボ
ツトの可動側に配置されたマニホールド間を電線
の束で接続すると電線の重さによつてロボツトの
動作範囲を限定することになるし、ロボツトの動
きにつれて電線も移動するために電線自体が断線
する等の難点が指摘されていた。 Furthermore, if a bundle of electric wires is used to connect the control unit and the manifold placed on the movable side of the robot, as in industrial robots, the weight of the electric wires will limit the robot's operating range, and the robot's movement will be limited. Difficulties were pointed out, such as the wires themselves breaking due to the movement of the wires.
そこで、本発明者等は、鋭意考究を重ねた結
果、電磁弁マニホールドの内部に、またはこのマ
ニホールドに近接して各電磁弁の動作を一括して
制御する制御回路を付設し、この制御回路と制御
指令装置とを光フアイバーあるいは同軸ケーブル
で接続し、前記制御指令装置からは個々の電磁弁
の駆動信号をシリアル信号で送給し、前記制御回
路でパラレル信号に変換して個々の電磁弁の付勢
を図ると共にリミツトスイツチからの個々の電磁
弁の駆動確認は、前記制御回路でシリアル信号に
変換して制御指令装置に送給するように構成すれ
ば、配線本数の少ない電磁弁制御系が得られ前記
の問題点が一掃されることが判つた。 Therefore, as a result of extensive research, the present inventors installed a control circuit inside the solenoid valve manifold or in close proximity to this manifold to collectively control the operation of each solenoid valve, and this control circuit and The control command device is connected with an optical fiber or coaxial cable, and the control command device sends drive signals for individual solenoid valves as serial signals, which are converted into parallel signals by the control circuit and sent to each solenoid valve. If the control circuit is configured to energize the individual solenoid valves and to confirm the drive of each solenoid valve from the limit switch, the control circuit converts the signal into a serial signal and sends it to the control command device, resulting in a solenoid valve control system with fewer wires. It was found that the above-mentioned problems could be eliminated.
従つて、本発明の目的は、小型化に適し、保守
管理が容易な、しかも製造コストが低廉で故障の
少ない流体制御装置を提供することにある。 SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a fluid control device that is suitable for downsizing, is easy to maintain, is inexpensive to manufacture, and has fewer failures.
前記の目的を達成するために、本発明は複数個
の流体圧シリンダの付勢、滅勢を図る複数個の電
磁弁と、前記電磁弁を夫々付勢、滅勢する制御信
号を前記電磁弁の制御のために分配する直列並列
変換回路と前記複数個の流体圧シリンダの動作を
確認する動作確認信号を受る並列直列変換回路と
を含む制御回路と、前記電磁弁を夫々付勢、滅勢
する制御信号を前記制御回路に供給し且つ前記制
御回路から送給されるシリンダ動作確認信号を受
け電磁弁を制御する制御指令信号を発生する制御
指令装置と、前記制御回路と制御指令装置を接続
する回路とからなることを特徴とする。 To achieve the above object, the present invention includes a plurality of solenoid valves for energizing and deenergizing a plurality of fluid pressure cylinders, and a control signal for energizing and deenergizing the solenoid valves, respectively. a control circuit including a series-to-parallel conversion circuit distributed for controlling the plurality of fluid pressure cylinders, and a parallel-to-serial conversion circuit for receiving an operation confirmation signal for confirming the operation of the plurality of fluid pressure cylinders; a control command device that supplies a control signal to the control circuit and generates a control command signal for controlling a solenoid valve upon receiving a cylinder operation confirmation signal sent from the control circuit; It is characterized by consisting of a connecting circuit.
次に、本発明に係る流体制御装置について好適
な実施例を挙げ、添付の図面を参照しながら以下
詳細に説明する。 Next, preferred embodiments of the fluid control device according to the present invention will be described in detail with reference to the accompanying drawings.
第１図において参照符号１０は、流体駆動用モ
ヂユールを示し、このモヂユール１０は、複数個
の電磁弁１２ａ乃至１２ｅを連設した電磁弁マニ
ホールド１４と、前記電磁弁１２ａ乃至１２ｅに
対応する数のシリンダ１６ａ乃至１６ｅとを含
む。電磁弁１２ａとシリンダ１６ａとは、一対の
流体導入系１８ａと流体導出系２０ａとで接続さ
れ、以下電磁弁１２ｂ乃至１２ｅおよびシリンダ
１６ｂ乃至１６ｅも同様に流体導入系１８ｂ乃至
１８ｅと流体導出系２０ｂ乃至２０ｅとで夫々接
続される。前記シリンダ１６ａ乃至１６ｅには、
その両端部にシリンダの動作検出用のリミツトス
イツチ２２ａと２４ａとが固設され、シリンダ１
６ｂ乃至１６ｅについても同様にリミツトスイツ
チ２２ｂ乃至２２ｅとリミツトスイツチ２４ｂ乃
至２４ｅが固設されている。前記夫々のリミツト
スイツチから導出されたシリンダの動作検出信号
を送給する信号線２６ａ乃至２６ｅ並びに２８ａ
乃至２８ｅは、電磁弁マニホールド１４に内設さ
れた制御回路３０に接続している。 In FIG. 1, reference numeral 10 indicates a fluid drive module, and this module 10 includes a solenoid valve manifold 14 in which a plurality of solenoid valves 12a to 12e are arranged in series, and a number corresponding to the solenoid valves 12a to 12e. It includes cylinders 16a to 16e. The solenoid valve 12a and the cylinder 16a are connected by a pair of fluid introduction systems 18a and a fluid derivation system 20a, and the solenoid valves 12b to 12e and cylinders 16b to 16e are similarly connected to the fluid introduction systems 18b to 18e and the fluid derivation system 20b. 20e to 20e, respectively. The cylinders 16a to 16e include
Limit switches 22a and 24a for detecting cylinder operation are fixedly installed at both ends of the cylinder 1.
Similarly, limit switches 22b to 22e and limit switches 24b to 24e are fixedly installed for 6b to 16e. Signal lines 26a to 26e and 28a transmitting cylinder operation detection signals derived from the respective limit switches.
28e to 28e are connected to a control circuit 30 installed inside the solenoid valve manifold 14.
一方、前記電磁弁マニホールド１４の制御回路
３０からは、二本の光フアイバーケーブル３２お
よび３４を導出してこれらを制御指令装置３６に
接続する。なお、第１図において、参照符号３８
は、モヂユール１０内のマニホールド１４に所要
の流体、例えば、空気を供給するための空気供給
系であり、また参照符号４０は、外部電源４２と
マニホールド１４とを接続して電磁弁１２ａ乃至
１２ｅの付勢並びにリミツトスイツチ２２ａ乃至
２２ｅ、２４ａ乃至２２ｅの付勢を行う電力を供
給するための電力線である。 On the other hand, two optical fiber cables 32 and 34 are led out from the control circuit 30 of the solenoid valve manifold 14 and connected to a control command device 36. In addition, in FIG. 1, reference numeral 38
is an air supply system for supplying a necessary fluid, such as air, to the manifold 14 in the module 10, and reference numeral 40 is an air supply system for connecting the external power supply 42 and the manifold 14 to operate the solenoid valves 12a to 12e. This is a power line for supplying power for energizing the limit switches 22a to 22e and 24a to 22e.
第２図に、前記制御回路３０と制御指令装置３
６の回路図を示す。この場合、制御指令装置３６
は、出力側において各電磁弁の駆動信号を入力す
る入力回路５０と前記入力回路５０によつて導入
されるパラレルな駆動信号をシリアルな信号に変
更する並列／直列信号変換器５２と前記変換器５
２の出力側に接続されて電気信号を光信号に変換
するＥ／Ｏ変換器５４とを具備し、前記Ｅ／Ｏ変
換器５４の出力側は、光フアイバーケーブル３２
に接続する。制御指令装置３６の入力側には、前
記光フアイバーケーブル３４に接続して制御回路
３０から送給されてくるリミツトスイツチの動作
確認のための光信号を電気信号に変換するＥ／Ｏ
変換器５６を設け、この変換器５６の出力側を直
列信号／並列信号変換器５８に接続する。変換器
５８の出力側は、デイスプレイ装置等を含む表示
装置６０に接続してもよいが、一方、そのパラレ
ルな信号をCPU６２に導入してメモリ６４に記
憶させ、必要に応じて表示装置６０でそれを確認
することも可能である。 FIG. 2 shows the control circuit 30 and the control command device 3.
6 is shown. In this case, the control command device 36
On the output side, an input circuit 50 inputs a drive signal for each electromagnetic valve, a parallel/serial signal converter 52 that changes a parallel drive signal introduced by the input circuit 50 into a serial signal, and the converter. 5
The output side of the E/O converter 54 is connected to the output side of the optical fiber cable 32 and converts an electrical signal into an optical signal.
Connect to. On the input side of the control command device 36, an E/O is connected to the optical fiber cable 34 and converts an optical signal sent from the control circuit 30 into an electrical signal for checking the operation of the limit switch.
A converter 56 is provided, the output of which is connected to a serial signal/parallel signal converter 58. The output side of the converter 58 may be connected to a display device 60 including a display device or the like, but on the other hand, the parallel signal is introduced into a CPU 62 and stored in a memory 64, and can be outputted from the display device 60 as necessary. It is also possible to confirm this.
次に、制御回路３０は、前記光フアイバーケー
ブル３２に接続する光信号を電気信号に変換する
Ｏ／Ｅ変換器７０とこの変換器７０の出力側に接
続してそのシリアルな電気信号をパラレルな電気
信号に変える直列信号／並列信号変換器７２を含
み、さらに各リミツトスイツチ２２ａ乃至２２ｅ
およびリミツトスイツチ２４ａ乃至２４ｅからの
リミツトスイツチのパラレルな動作確認信号をシ
リアルな電気信号に変える並列信号／直列信号変
換器７４とこの変換器７４に接続して電気信号を
光信号に変換しこれを光フアイバーケーブル３４
に送る電気信号／光信号変換器７６を具備する。 Next, the control circuit 30 connects an O/E converter 70 connected to the optical fiber cable 32 and converts an optical signal into an electrical signal, and connects the output side of this converter 70 to convert the serial electrical signal into a parallel one. It includes a serial signal/parallel signal converter 72 converting the signal into an electrical signal, and further includes each limit switch 22a to 22e.
and a parallel signal/serial signal converter 74 that converts the parallel operation confirmation signals of the limit switches from the limit switches 24a to 24e into serial electrical signals. cable 34
An electrical signal/optical signal converter 76 is provided.
本発明は、基本的には以上のように構成される
ものであり、次にその作用並びに効果について説
明する。 The present invention is basically constructed as described above, and its operation and effects will be explained next.
メモリ６４に記憶されている各電磁弁駆動用の
信号がCPU６２を介して入力回路５０に導入さ
れると、これらの並列的な信号は、変換器５２を
介してシリアル信号に変換され、次いでＥ／Ｏ変
換器５４で光信号に変換された後、光フアイバー
ケーブル３２により制御回路３０に送られる。制
御回路３０内でこの信号はＯ／Ｅ変換器７０によ
りシリアルな電気信号に変換され、直列信号／並
列信号変換器７２によりパラレルな電気信号に変
わる。これらの信号は、各電磁弁１２ａ乃至１２
ｅに図示しないバス線を介して送給され、各電磁
弁ではこの制御信号に基づき電力線４０から送給
される駆動電力によつて所定の電磁弁を駆動する
ことになる。 When the signals for driving each electromagnetic valve stored in the memory 64 are introduced into the input circuit 50 via the CPU 62, these parallel signals are converted into serial signals via the converter 52, and then E After being converted into an optical signal by the /O converter 54, it is sent to the control circuit 30 via the optical fiber cable 32. Within the control circuit 30, this signal is converted into a serial electrical signal by an O/E converter 70, and converted into a parallel electrical signal by a serial signal/parallel signal converter 72. These signals are transmitted to each solenoid valve 12a to 12.
Based on this control signal, each electromagnetic valve drives a predetermined electromagnetic valve by the driving power sent from the power line 40.
一方、前記電磁弁１２ａ乃至１２ｅによるシリ
ンダ１６ａ乃至１６ｅの夫々の動作は、リミツト
スイツチ２２ａ乃至２２ｅおよび２４ａ乃至２４
ｅにより検出される。そこでこれらの信号は、並
列信号／直列信号変換器７４に導入されシリアル
信号に変換される。これらの信号は、次いで、
Ｅ／Ｏ変換器７６でシリアルな光信号に変換され
て光フアイバーケーブル３４を介して光信号／電
気信号変換器５６に導入される。そして、その出
力信号は、直列信号／並列信号変換器５８でパラ
レルな電気信号に変えられ表示装置６０でその動
作が確認されることになる。 On the other hand, the operations of the cylinders 16a to 16e by the solenoid valves 12a to 12e are controlled by the limit switches 22a to 22e and 24a to 24.
detected by e. These signals are then introduced into a parallel signal/serial signal converter 74 and converted into serial signals. These signals are then
It is converted into a serial optical signal by the E/O converter 76 and introduced into the optical signal/electrical signal converter 56 via the optical fiber cable 34. Then, the output signal is converted into a parallel electrical signal by a serial signal/parallel signal converter 58, and its operation is confirmed on a display device 60.
また、この場合、前記シリンダ１６ａ乃至１６
ｅの動作は、CPU６２にも導入され、メモリ６
４に記憶された正常状態におけるシリンダの動作
信号と比較し、これを表示装置６０に表すことも
できる。 Further, in this case, the cylinders 16a to 16
The operation of e is also introduced to the CPU 62, and the memory 6
It is also possible to compare the operation signal of the cylinder in the normal state stored in 4 and display it on the display device 60.
本発明によれば、以上のように電磁弁、シリン
ダおよび流体供給系を備える流体制御装置におい
て、前記電磁弁のオン・オフ制御信号並びに前記
シリンダの駆動確認信号をパラレル信号として供
給し、この結果、夫々の電磁弁およびシリンダに
必要とされた配線本数を減少させることができ、
これによつて機器の配線の設計が非常に簡便化し
た。さらにノイズに対してもその影響を蒙ること
なく動作を安定させることができ、しかも保守管
理がし易い等の種々の効果を奏する。 According to the present invention, in a fluid control device including a solenoid valve, a cylinder, and a fluid supply system as described above, an on/off control signal for the solenoid valve and a drive confirmation signal for the cylinder are supplied as parallel signals, and as a result, , the number of wiring required for each solenoid valve and cylinder can be reduced,
This greatly simplifies the design of equipment wiring. Furthermore, it is possible to stabilize the operation without being affected by noise, and it has various effects such as ease of maintenance and management.
以上、本発明について好適な実施例を挙げて説
明したが、本発明は、この実施例に限定されるも
のではなく、例えば、光フアイバーケーブルに代
えて同軸ケーブル、バスケーブル、ツイストケー
ブル等も使用することができる等本発明の精神を
逸脱しない範囲において種々の改変が可能である
ことは勿論である。 Although the present invention has been described above with reference to preferred embodiments, the present invention is not limited to these embodiments. For example, coaxial cables, bus cables, twisted cables, etc. may be used instead of optical fiber cables. It goes without saying that various modifications can be made without departing from the spirit of the present invention.
第１図は、本発明に係る流体制御装置のブロツ
ク回路図、第２図は、前記流体制御装置に組み込
まれる制御回路と制御指令装置のブロツク回路図
である。
１０……モヂユール、１２……電磁弁、１４…
…電磁弁マニホールド、１６……シリンダ、１８
……流体導入系、２０……流体導出系、２２，２
４……リミツトスイツチ、２６，２８……信号
線、３０……制御回路、３２，３４……光フアイ
バーケーブル、３６……制御指令装置、３８……
空気供給系、４０……電力線、４２……外部電
源、５０……入力回路、５２……並列信号／直列
信号変換供給、５４……Ｅ／Ｏ変換器、５６……
Ｏ／Ｅ変換器、５８……直列信号／並列信号変換
器、６０……表示装置、６２……CPU、６４…
…メモリ、７０……Ｏ／Ｅ変換器、７２……直列
信号／並列信号変換器、７４……並列信号／直列
信号変換器、７６……電気信号／光信号変換器。
FIG. 1 is a block circuit diagram of a fluid control device according to the present invention, and FIG. 2 is a block circuit diagram of a control circuit and a control command device incorporated in the fluid control device. 10...Module, 12...Solenoid valve, 14...
...Solenoid valve manifold, 16...Cylinder, 18
...Fluid introduction system, 20...Fluid derivation system, 22,2
4... Limit switch, 26, 28... Signal line, 30... Control circuit, 32, 34... Optical fiber cable, 36... Control command device, 38...
Air supply system, 40...Power line, 42...External power supply, 50...Input circuit, 52...Parallel signal/serial signal conversion supply, 54...E/O converter, 56...
O/E converter, 58...Serial signal/parallel signal converter, 60...Display device, 62...CPU, 64...
...Memory, 70...O/E converter, 72...Serial signal/parallel signal converter, 74...Parallel signal/serial signal converter, 76...Electrical signal/optical signal converter.
Claims (1)
複数個の電磁弁と、 前記電磁弁を夫々付勢、滅勢する制御信号を前
記電磁弁の制御のために分配する直列並列変換回
路と前記複数個の流体圧シリンダの動作を確認す
る動作確認信号を受ける並列直列変換回路とを含
む制御回路と、 前記電磁弁を夫々付勢、滅勢する制御信号を前
記制御回路に供給し且つ前記制御回路から送給さ
れるシリンダ動作確認信号を受け電磁弁を制御す
る制御指令信号を発生する制御指令装置と、 前記制御回路と制御指令装置を接続する回路と
からなることを特徴とする流体制御装置。[Claims] 1. A plurality of solenoid valves for energizing and deenergizing a plurality of fluid pressure cylinders, and a control signal for energizing and deenergizing the solenoid valves, respectively, for controlling the solenoid valves. a control circuit including a series-to-parallel conversion circuit for distributing and a parallel-to-serial conversion circuit for receiving an operation confirmation signal for confirming the operation of the plurality of fluid pressure cylinders; A control command device that generates a control command signal that is supplied to a control circuit and controls a solenoid valve upon receiving a cylinder operation confirmation signal sent from the control circuit, and a circuit that connects the control circuit and the control command device. A fluid control device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16363583A JPS6057073A (en) | 1983-09-06 | 1983-09-06 | Fluid control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16363583A JPS6057073A (en) | 1983-09-06 | 1983-09-06 | Fluid control system |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4027365A Division JP2688031B2 (en) | 1992-01-18 | 1992-01-18 | Solenoid valve manifold with communication means |
| JP4027366A Division JP2690001B2 (en) | 1992-01-18 | 1992-01-18 | Collective control device for actuator module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6057073A JPS6057073A (en) | 1985-04-02 |
| JPH0313466B2 true JPH0313466B2 (en) | 1991-02-22 |
Family
ID=15777677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16363583A Granted JPS6057073A (en) | 1983-09-06 | 1983-09-06 | Fluid control system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6057073A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02176290A (en) * | 1988-12-28 | 1990-07-09 | Koganei Ltd | Manifold device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4919290A (en) * | 1972-06-14 | 1974-02-20 | ||
| JPS5639311A (en) * | 1979-09-03 | 1981-04-15 | Daikin Ind Ltd | Two stage type electromagnetic proportional throttle change-over valve with reducing pilot valve having control circuit |
| JPS5761879A (en) * | 1980-10-01 | 1982-04-14 | Hikari Gokin Seisakusho:Kk | Remote controller for valve's opening/closing motion |
| JPS57184781A (en) * | 1981-04-24 | 1982-11-13 | Telemecanique Electrique | Pneumatic pressure control signal distributing system using electrical means |
-
1983
- 1983-09-06 JP JP16363583A patent/JPS6057073A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4919290A (en) * | 1972-06-14 | 1974-02-20 | ||
| JPS5639311A (en) * | 1979-09-03 | 1981-04-15 | Daikin Ind Ltd | Two stage type electromagnetic proportional throttle change-over valve with reducing pilot valve having control circuit |
| JPS5761879A (en) * | 1980-10-01 | 1982-04-14 | Hikari Gokin Seisakusho:Kk | Remote controller for valve's opening/closing motion |
| JPS57184781A (en) * | 1981-04-24 | 1982-11-13 | Telemecanique Electrique | Pneumatic pressure control signal distributing system using electrical means |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6057073A (en) | 1985-04-02 |
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