JPS57179404A - Cylinder device - Google Patents

Cylinder device

Info

Publication number
JPS57179404A
JPS57179404A JP56067412A JP6741281A JPS57179404A JP S57179404 A JPS57179404 A JP S57179404A JP 56067412 A JP56067412 A JP 56067412A JP 6741281 A JP6741281 A JP 6741281A JP S57179404 A JPS57179404 A JP S57179404A
Authority
JP
Japan
Prior art keywords
chamber
move
rod
piston
valve mechanism
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.)
Pending
Application number
JP56067412A
Other languages
Japanese (ja)
Inventor
Masabumi Isobe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP56067412A priority Critical patent/JPS57179404A/en
Publication of JPS57179404A publication Critical patent/JPS57179404A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F15B11/032—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of fluid-pressure converters
    • F15B11/0325—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of fluid-pressure converters the fluid-pressure converter increasing the working force after an approach stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/214—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being hydrotransformers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/775—Combined control, e.g. control of speed and force for providing a high speed approach stroke with low force followed by a low speed working stroke with high force, e.g. for a hydraulic press

Abstract

PURPOSE:To produce the high pressure when the external force is high, by providing a mechanism for pressing a rod by means of the fluid supply and a valve mechanism which functions at the pressure higher than predetermined level thereby functioning a speed increase piston through the functioning of said valve. CONSTITUTION:When supplying the pressurized air to a port 21, an idle piston 14 will move to the direction G and the oil in the chamber C will flow into the chamber E thus to move a rod 2. A valve mechanism 6 will close as the external force will increase thus to block between the chambers E and C and to close the chamber E tightly, while when the pressure of the compressed air supply will increase further the valve mechanism 18 will function to flow the compressed air into the chamber B thus to pressurize a booster piston 13 and to move a ram 10 in the direction G. Since the chamber E is closed tightly and the cross-section of the ram 10 is smaller than that of the booster piston 13, the chamber E is brought into the high pressure thus to pressurize the rod 2.
JP56067412A 1981-04-30 1981-04-30 Cylinder device Pending JPS57179404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56067412A JPS57179404A (en) 1981-04-30 1981-04-30 Cylinder device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56067412A JPS57179404A (en) 1981-04-30 1981-04-30 Cylinder device

Publications (1)

Publication Number Publication Date
JPS57179404A true JPS57179404A (en) 1982-11-05

Family

ID=13344167

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56067412A Pending JPS57179404A (en) 1981-04-30 1981-04-30 Cylinder device

Country Status (1)

Country Link
JP (1) JPS57179404A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0972946A1 (en) * 1998-07-14 2000-01-19 Fresmak, S.A. Pneumatic-hydraulic force intensifier
WO2004072486A1 (en) * 2003-02-14 2004-08-26 Wolfgang Voss Method and device for pressure amplification in cylinders, in particular hydraulic rams
KR100733766B1 (en) 2004-04-19 2007-06-29 주재석 Pressure Interensifying Cylinder
WO2008014799A1 (en) * 2006-07-31 2008-02-07 Norgren Gmbh Pneumatic actuator
US11111936B2 (en) 2019-08-20 2021-09-07 Roller Bearing Company Of America, Inc. Piston assembly having reduced extend force and reduced displacement volume

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5370A (en) * 1976-06-23 1978-01-05 Philips Nv Gas discharge display tube and method of manufacturing same
JPS5390572A (en) * 1976-11-27 1978-08-09 Masabumi Isobe Cylinder capable of outputting both low power and high power
JPS5426674A (en) * 1977-07-29 1979-02-28 Matsushita Electric Ind Co Ltd Electrode material for semiconductor device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5370A (en) * 1976-06-23 1978-01-05 Philips Nv Gas discharge display tube and method of manufacturing same
JPS5390572A (en) * 1976-11-27 1978-08-09 Masabumi Isobe Cylinder capable of outputting both low power and high power
JPS5426674A (en) * 1977-07-29 1979-02-28 Matsushita Electric Ind Co Ltd Electrode material for semiconductor device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0972946A1 (en) * 1998-07-14 2000-01-19 Fresmak, S.A. Pneumatic-hydraulic force intensifier
WO2004072486A1 (en) * 2003-02-14 2004-08-26 Wolfgang Voss Method and device for pressure amplification in cylinders, in particular hydraulic rams
KR100733766B1 (en) 2004-04-19 2007-06-29 주재석 Pressure Interensifying Cylinder
WO2008014799A1 (en) * 2006-07-31 2008-02-07 Norgren Gmbh Pneumatic actuator
US8261547B2 (en) 2006-07-31 2012-09-11 Norgren Gmbh Pneumatic actuator
US11111936B2 (en) 2019-08-20 2021-09-07 Roller Bearing Company Of America, Inc. Piston assembly having reduced extend force and reduced displacement volume

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