FR2457402A1 - Pneumatic cylinder with intermediate stopping device - has hollow piston rod incorporating hydropneumatic system with valve controlling hydraulic portion - Google Patents

Pneumatic cylinder with intermediate stopping device - has hollow piston rod incorporating hydropneumatic system with valve controlling hydraulic portion

Info

Publication number
FR2457402A1
FR2457402A1 FR8011172A FR8011172A FR2457402A1 FR 2457402 A1 FR2457402 A1 FR 2457402A1 FR 8011172 A FR8011172 A FR 8011172A FR 8011172 A FR8011172 A FR 8011172A FR 2457402 A1 FR2457402 A1 FR 2457402A1
Authority
FR
France
Prior art keywords
piston
pneumatic cylinder
piston rod
hollow piston
stopping device
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.)
Granted
Application number
FR8011172A
Other languages
French (fr)
Other versions
FR2457402B1 (en
Inventor
Hermann Reuschenbach
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.)
Stabilus GmbH
Original Assignee
Stabilus GmbH
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 Stabilus GmbH filed Critical Stabilus GmbH
Publication of FR2457402A1 publication Critical patent/FR2457402A1/en
Application granted granted Critical
Publication of FR2457402B1 publication Critical patent/FR2457402B1/en
Expired 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/26—Locking mechanisms
    • 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
    • F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
    • F15B11/072—Combined pneumatic-hydraulic systems
    • F15B11/076—Combined pneumatic-hydraulic systems with pneumatic drive or displacement and speed control or stopping by hydraulic braking
    • 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
    • F15B2211/216—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being pneumatic-to-hydraulic converters
    • 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
    • F15B2211/3052—Shuttle valves
    • 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
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • 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
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41527—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a 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
    • F15B2211/40—Flow control
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/421—Flow control characterised by the type of actuation mechanically
    • F15B2211/424—Flow control characterised by the type of actuation mechanically actuated by an output member of the circuit
    • 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/625—Accumulators
    • 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
    • F15B2211/7055—Linear output members having more than two chambers
    • 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
    • F15B2211/755—Control of acceleration or deceleration of the output member

Abstract

The pneumatic cylinder with intermediate stopping positions has a piston (4) sliding inside a cylinder (2), the piston being mounted on a hollow stem which acts as a pressure chamber for a pneumatic spring, which can be blocked. Inside the stem is an auxiliary piston (9) with its rod (6) screwed into one end (1) of the cylinder. Below this piston is a further piston (7) with a spring (15) behind it, dividing the space under the auxiliary piston into a pneumatic chamber (8) and an oil-filled chamber (10). Communication between the oil-filled chamber and a chamber (11) above the auxiliary piston is controlled by a valve (12) inside the auxiliary piston rod, with its stem passing through the rod and projecting (13) from the top.
FR8011172A 1979-05-19 1980-05-14 FLUID-OPERATED CYLINDER-TYPE PISTON STEERING DEVICE Expired FR2457402B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792920423 DE2920423A1 (en) 1979-05-19 1979-05-19 COMPRESSED AIR CYLINDER WITH LOCKING DEVICE

Publications (2)

Publication Number Publication Date
FR2457402A1 true FR2457402A1 (en) 1980-12-19
FR2457402B1 FR2457402B1 (en) 1985-06-07

Family

ID=6071251

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8011172A Expired FR2457402B1 (en) 1979-05-19 1980-05-14 FLUID-OPERATED CYLINDER-TYPE PISTON STEERING DEVICE

Country Status (3)

Country Link
JP (1) JPS55155904A (en)
DE (1) DE2920423A1 (en)
FR (1) FR2457402B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2482211A1 (en) * 1980-05-07 1981-11-13 Stabilus Gmbh ACTUATING DEVICE OPERATING BY FLUID PRESSURE
EP0311267A1 (en) * 1987-10-06 1989-04-12 Sponmech Limited Pneumatic actuator
FR2712220A1 (en) * 1993-11-12 1995-05-19 Helis Sa Clamping tool of complex forms to be machined
AT516280B1 (en) * 2015-02-06 2016-04-15 Neuson Hydrotec Gmbh Piston-cylinder unit with adjusting ring

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56138206U (en) * 1980-03-19 1981-10-20
JPS57127136A (en) * 1981-01-29 1982-08-07 Tokico Ltd Closed type cylinder device
CS244640B1 (en) * 1984-10-24 1986-08-14 Frantisek Suchanek Agricultural machines' tilting parts control device e.g.self-propelled harvesting sliver's pipe tilting mechanism
ITTO20020504A1 (en) * 2002-06-14 2003-12-15 Vep Automation Srl ARM SWING DAMPING DEVICE OF A SWING LEVER TYPE HANDLING EQUIPMENT
JP4833049B2 (en) * 2006-12-13 2011-12-07 デュプロ精工株式会社 Paper processing equipment
CN104265731B (en) * 2014-10-27 2017-01-11 宁波远志立方能源科技有限公司 Hydraulic cylinder with self-locking device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2453855A (en) * 1947-11-21 1948-11-16 Adel Prec Products Corp Hydraulic lock
US2624318A (en) * 1946-06-24 1953-01-06 Rheem Mfg Co Pneumatic servomotor
US2630887A (en) * 1946-09-11 1953-03-10 Weatherhead Co Hydraulic lock for adjustable chair backs
GB819353A (en) * 1955-11-11 1959-09-02 William John Courtney Trythall Improvements in pneumatic piston and cylinder devices
FR1372573A (en) * 1963-07-31 1964-09-18 Automotive Prod Co Ltd Hydraulic locking mechanism for maintaining relative displacement members in a selected adjustment position
US3363518A (en) * 1965-12-15 1968-01-16 Mathew G. Boissevain Hydraulically damped air cylinder
US3603205A (en) * 1969-12-01 1971-09-07 Gen Motors Corp Hydraulic lock for a linear actuator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2624318A (en) * 1946-06-24 1953-01-06 Rheem Mfg Co Pneumatic servomotor
US2630887A (en) * 1946-09-11 1953-03-10 Weatherhead Co Hydraulic lock for adjustable chair backs
US2453855A (en) * 1947-11-21 1948-11-16 Adel Prec Products Corp Hydraulic lock
GB819353A (en) * 1955-11-11 1959-09-02 William John Courtney Trythall Improvements in pneumatic piston and cylinder devices
FR1372573A (en) * 1963-07-31 1964-09-18 Automotive Prod Co Ltd Hydraulic locking mechanism for maintaining relative displacement members in a selected adjustment position
US3363518A (en) * 1965-12-15 1968-01-16 Mathew G. Boissevain Hydraulically damped air cylinder
US3603205A (en) * 1969-12-01 1971-09-07 Gen Motors Corp Hydraulic lock for a linear actuator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2482211A1 (en) * 1980-05-07 1981-11-13 Stabilus Gmbh ACTUATING DEVICE OPERATING BY FLUID PRESSURE
EP0311267A1 (en) * 1987-10-06 1989-04-12 Sponmech Limited Pneumatic actuator
FR2712220A1 (en) * 1993-11-12 1995-05-19 Helis Sa Clamping tool of complex forms to be machined
AT516280B1 (en) * 2015-02-06 2016-04-15 Neuson Hydrotec Gmbh Piston-cylinder unit with adjusting ring
AT516280A4 (en) * 2015-02-06 2016-04-15 Neuson Hydrotec Gmbh Piston-cylinder unit with adjusting ring
EP3054170A1 (en) 2015-02-06 2016-08-10 Neuson Hydrotec GmbH Cylinder-piston unit with adjusting ring

Also Published As

Publication number Publication date
DE2920423A1 (en) 1980-11-27
FR2457402B1 (en) 1985-06-07
JPS55155904A (en) 1980-12-04

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Legal Events

Date Code Title Description
ST Notification of lapse