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1. 发明专利

JPS608512A FLUID PRESSURE ARITHMETIC UNIT 失效
公开(公告)号：JPS608512A
公开(公告)日：1985-01-17
申请号：JP11646983
申请日：1983-06-28
申请人： ASAHI ENTERPRISE KK
发明人： IIZUKA HIROMICHI
IPC分类号： F15C3/04
摘要： PURPOSE:To accomplish high-accuracy fluid pressure control in an open loop by disposing a pair of pressure plates, the spring force of which can be changed by a step motor in a fluid pressure arithmetic unit adapted to obtain fluid pressure according to an electric signal applied from the outside. CONSTITUTION:When air pressure is supplied from a supply port 11 through an air path 12 to a nozzle 13 to cause pressure to work upon a pressure plate 6, the back pressure is acted upon a pressure plate 7 through an air path 16, an output port 17, an input port 18 and a diaphragm 19. At this time, the spring force of a spring 21 is applied to the pressure plate 6. The spring force is changed in proportion to the travel of a feed screw axially displaced according to the rotation of a rotor 27 caused by a step motor 24. Thus, the output pressure P0 obtained from the output port 17 is proportioned to the number of pulses applied to the step motor 24. Accordingly, a drift in temperature is not caused, which can eliminate the need of temperature compensation to simplify the structure.

2. 发明专利

JPS57153207A HYDRAULIC TYPE MICROMETER 失效
公开(公告)号：JPS57153207A
公开(公告)日：1982-09-21
申请号：JP3890981
申请日：1981-03-18
申请人： ASAHI ENTERPRISE KK
发明人： IIZUKA HIROMICHI
IPC分类号： G01B13/00
摘要： PURPOSE:To change easily a detection gap length and to improve the detection sensitivity, by comparing and amplifying the back pressure of a detecting nozzle and a reference pressure by a differential pressure amplifier in a hydraulic type micrometer. CONSTITUTION:Compressed air from an air source 11 has pressure reduced by a reducing valve 12 and is adjusted to a supply pressure PS. A gauge 13 is used for this adjustment. When air of the supply pressure PS is jetted onto the surface of a material 17 to be measured on a reference face 16 from a detecting nozzle 15 through a fixed orifice 14, a backpressure P1 corresponding to a detecting gap lX is generated in the supply path to the nozzle. The back pressure is supplied to a comparison pressure supply port of a differential pressure amplifier 18. A reference pressure P3 adjusted by an orifice 19 and a needle valve 20 is supplied to a comparison pressure input port of the differential pressure amplifier, and a pressure switched 23 is operated when the gap length lX becomes a length corresponding to the reference pressure.

3. 发明专利

JPS5797176A HYDRAULIC OPERATING DEVICE 失效
公开(公告)号：JPS5797176A
公开(公告)日：1982-06-16
申请号：JP17275280
申请日：1980-12-08
申请人： ASAHI ENTERPRISE KK
发明人： IIZUKA HIROMICHI
IPC分类号： G06G5/00
摘要： PURPOSE:To simplify structure by performing arithmetic by using an input pressure level and the range of the same pressure. CONSTITUTION:The 1st and 2nd diaphragms 37 and 38 have the same shape; their effective area is denoted as S, and the effective area of a nozzle 45 is denoted as A. Then, air is supplied to the 1st and 2nd fluid chambers 35 and 36 through the 1st and 2nd input ports 47 and 48, and their pressures Pi1 and Pi2 are so set that Pi1>Pi2. Further, air is supplied to the nozzle 45 from a supply port 49 through an orifice 52 and when the back pressure of the nozzle 45 obtained from an output port 51 is denoted as P0, P0=S(Pi1-Pi2)/A, performing arithmetic of differential pressure amplification. When the output port 51 and the 2nd input port 48 are connected to obtain Pi2=P0, P0=S.Pi1/(S+A) and because S>>A, P0=Pi1, performing 1:1 proportional amplification.

4. 发明专利

JPS5697610A LOGICAL APPARATUS FOR FLUID PRESSURE 失效
公开(公告)号：JPS5697610A
公开(公告)日：1981-08-06
申请号：JP17215979
申请日：1979-12-29
申请人： ASAHI ENTERPRISE KK
发明人： IIZUKA HIROMICHI , MAEDA EIZOU
IPC分类号： F15C3/00 , F15C3/16
摘要： PURPOSE:To permit a single main body of a logical apparatus for fluid pressure to have a wide variety of logical functions by providing a piston poppet in the multi- step columnar hollow portion in said main body and operating said piston poppet by using two or more fluid pressure signals. CONSTITUTION:Formed in the main body 1 is a multi-step columnar hollow portion A through E, in which a piston poppet 3 axially reciprocated by fluid pressure is placed to divide said hollow portion into a plurality of chambers A through E. Moreover provided are communicating passages X1 through X4 which connect these chambers A through E and the outside, together with a communicating hole 7 inside the piston poppet 3, and fluid pressure signals are inputted to two or more of these communicating passages X1 through X4 and outputted from one of the other passages. Thereby, a wide variety of logical functions such as logical product, sum, negation or storage can be realized as well as excellent performance.

5. 发明专利

JPS54154374A PRESSURE DETECTOR 失效
公开(公告)号：JPS54154374A
公开(公告)日：1979-12-05
申请号：JP4846878
申请日：1978-04-24
申请人： ASAHI ENTERPRISE KK
发明人： MAEDA EIZOU , IIZUKA HIROMICHI
IPC分类号： G01L7/16 , H01H35/38

6. 发明专利

JPS549023A VALVE 失效
公开(公告)号：JPS549023A
公开(公告)日：1979-01-23
申请号：JP7348377
申请日：1977-06-21
申请人： ASAHI ENTERPRISE KK
发明人： MAEDA EIZOU , IIZUKA HIROMICHI
IPC分类号： F16K11/04 , F16D25/00 , F16D48/02 , F16K11/07

7. 发明专利

JPS5821216B2 失效
公开(公告)号：JPS5821216B2
公开(公告)日：1983-04-27
申请号：JP4846878
申请日：1978-04-24
申请人： ASAHI ENTERPRISE KK
发明人： MAEDA EIZO , IIZUKA HIROMICHI
IPC分类号： G01L7/16 , H01H35/38

8. 发明专利

JPS5697609A LOGICAL APPARATUS FOR FLUID PRESSURE 失效
公开(公告)号：JPS5697609A
公开(公告)日：1981-08-06
申请号：JP17215879
申请日：1979-12-29
申请人： ASAHI ENTERPRISE KK
发明人： IIZUKA HIROMICHI , MAEDA EIZOU
IPC分类号： F15C3/00 , F15C3/16
摘要： PURPOSE:To make it possible to realize a wide variety of logical fuctions for a logical apparatus for fluid pressure by providing a multi-step columnar hollow portion and a piston poppet having a collar portion in the main body and providing a plunger mechanism on the upper end side of the poppet. CONSTITUTION:Formed in the main body 1 is a multi-step columnar hollow portion A through E, in which a piston poppet 3 which is reciprocated by fluid pressure and has a collar portion 5 is provided. Moreover provided are communicating passages X1 through X4 and Y which connect the hollow portions A through E and the outside, a communicating hole 7 and a valve body 9. Then, fluid pressure signals are inputted to at least two or more of the communicating passages X1 through X4, Y and a plunger mechanism 10 provided above the valve boy 9, and a fluid pressure signal is outputted from one of the other communicating passages X1 through X4 and Y. Thereby, a wide variety of logical functions can be realized, such as logical product, sum, negation or storage.

9. 发明专利

JPS6098200A VENTURI PUMP 失效
公开(公告)号：JPS6098200A
公开(公告)日：1985-06-01
申请号：JP20710283
申请日：1983-11-04
申请人： ASAHI ENTERPRISE KK
发明人： IIZUKA HIROMICHI
IPC分类号： F04F5/52
摘要： PURPOSE:To enhance the reliability of a venturi pump used as a vacuum source of a vacuum cup type transfer device, by utilizing a pneumatic type computer to control the change-over among supply sources for compressed air fed to the venturi pump without using electrical contacts. CONSTITUTION:Vacuum pressure obtained from a venturi 20 which is connected to a compressed air supply source 21 through a three-position four-way solenoid selector valve 22, is acted upon a vacuum cup 24 through the selector valve 22. The vacuum pressure in the vacuum cup 24 is used as an input signal Pv fed to a pneumatic type computer 25 whose outlet signal Po is fed as a pilot pressure for the selector valve 22 which is therefore controlled by the computer 25, thereby the vacuum pressure of the vacuum cup 24 is regulated. As a result the consumption rate of compressed air may be reduced. The transfer device is actuated by delivering turn-on and -off signals to the selector valve 22.

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