EP0384032A1 - Vérin à fluide sous pression - Google Patents

Vérin à fluide sous pression Download PDF

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Publication number
EP0384032A1
EP0384032A1 EP89123620A EP89123620A EP0384032A1 EP 0384032 A1 EP0384032 A1 EP 0384032A1 EP 89123620 A EP89123620 A EP 89123620A EP 89123620 A EP89123620 A EP 89123620A EP 0384032 A1 EP0384032 A1 EP 0384032A1
Authority
EP
European Patent Office
Prior art keywords
tension
tension element
pressure
cylinder according
working cylinder
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
EP89123620A
Other languages
German (de)
English (en)
Other versions
EP0384032B1 (fr
EP0384032B2 (fr
Inventor
Helmut Göttling
Peter Müller
Rudolf Möller
Gerhard Scharnowski
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.)
Aventics GmbH
Original Assignee
Mannesmann Rexroth Pneumatik GmbH
Wabco Westinghouse Steuerungstechnik and Co 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6374736&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0384032(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mannesmann Rexroth Pneumatik GmbH, Wabco Westinghouse Steuerungstechnik and Co GmbH filed Critical Mannesmann Rexroth Pneumatik GmbH
Priority to AT89123620T priority Critical patent/ATE69861T1/de
Publication of EP0384032A1 publication Critical patent/EP0384032A1/fr
Publication of EP0384032B1 publication Critical patent/EP0384032B1/fr
Application granted granted Critical
Publication of EP0384032B2 publication Critical patent/EP0384032B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/084—Characterised by the construction of the motor unit the motor being of the rodless piston type, e.g. with cable, belt or chain
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
    • Y10T74/18832—Reciprocating or oscillating to or from alternating rotary including flexible drive connector [e.g., belt, chain, strand, etc.]
    • Y10T74/18848—Reciprocating or oscillating to or from alternating rotary including flexible drive connector [e.g., belt, chain, strand, etc.] with pulley
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20396—Hand operated
    • Y10T74/20402—Flexible transmitter [e.g., Bowden cable]
    • Y10T74/20456—Specific cable or sheath structure

Definitions

  • the invention relates to a pressure-actuated working cylinder according to the preamble of patent claim 1.
  • Such a cylinder is known from DE-OS 24 04 244.
  • This known working cylinder has a cylinder tube in which a piston with a circular cross section is arranged so as to be displaceable and sealed.
  • a tension element which is designed as a flat strip, is fastened to the end faces of the piston facing away from one another. The traction element is sealed out of the facing end faces of the cylinder tube.
  • a guide for a driver is provided on the lateral surface of the cylinder in the direction of the longitudinal axis of the cylinder.
  • the driver is connected to the tension element, the tension element being guided over deflection elements arranged on the cylinder faces.
  • the driver is also moved in the direction of the longitudinal axis of the cylinder by means of the tension element.
  • This known working cylinder has the disadvantage that, owing to the cross-sectional shape of the piston, it is relatively high in its construction and, due to the cross-sectional shape of the tension element, cannot be sealed absolutely reliably in the area of the bushings for the tension element.
  • the invention has for its object to provide a pressure-actuated working cylinder of the type mentioned, which is compact in structure and ensures a secure seal of the bushing for the tension element.
  • the invention offers in particular the advantage of obtaining a working cylinder which is very flat and whose implementation for the tension element can be sealed very well with simple means. Because the tension element has a cross section with a continuous circumferential line that deviates from the circular shape, small rollers can be used as deflection elements. If the tensile element, as specified in the subclaims, is composed of several tensile strands, preferably consisting of a plastic, a particularly high tensile strength of the tensile element is achieved.
  • the tensile cord or the tensile cords is or are surrounded by a jacket made of a plastic material, and the tension element formed from the tensile cord or the tensile cords and the jacket has the cross-sectional shape mentioned above, the combination achieved by high tensile strength of the tensile element and good sealability of the bushings for the tensile element in the end walls of the cylinder.
  • FIG. 1 shows a cylinder tube (10) consisting of a profile tube, which is closed on both ends by a first cover (1) and a second cover (15).
  • a piston (11) is arranged in the cylinder (10) in a sealed, displaceable manner by means of sealing rings (27, 32) mounted in circumferential grooves (28, 33) of the piston (11).
  • the piston (11) divides the cylinder (10) into a first working chamber (40) and a second working chamber (24, 17) opposite the first working chamber (40) on the other side of the piston (11).
  • the end walls of the cylinder (10) are formed from the covers (1) and (15).
  • the first working chamber (40) can optionally be connected to a pressure medium source or to the atmosphere or to a return via a first pressure medium connection (41) and a valve device (not shown).
  • the second working chamber (24, 17) via a pressure medium connection (16) and Valve device can be connected either to the pressure medium source or to the atmosphere or to the return.
  • the first cover (1) has on its side facing the cylinder tube (10), in the area adjoining the cylinder tube (10), a circumferential groove (34) in which a groove ring (35) is mounted.
  • the second cover (15) on its side facing the cylinder tube (10), in the area adjoining the cylinder tube (10), has a circumferential groove (22) in which a groove ring (23) is mounted.
  • a tubular projection (36) is provided inside the first cover (1) and extends in the direction of the first working chamber (40) of the cylinder.
  • a tubular molding (18) is provided within the second cover (15), which extends in the direction of the second working chamber (24, 17).
  • a first roller (2) serving as a deflection element is rotatably mounted in the first cover (1) on an axis (3) arranged transversely to the longitudinal axis of the cylinder tube (10).
  • a second cover (15) on the side of the tubular molding (18) of the second cover (15) facing away from the second working chamber (24, 17), there is also an axis (13) arranged as a deflecting element, transverse to the longitudinal axis of the cylinder tube (10) serving second roller (12) rotatably mounted.
  • the free interior of the tubular molding (36) of the first cover (1) and the free interior of the tubular molding (18) of the second cover (15) serve as a first channel (39) and as a second channel (19) through which a tension element (6) is passed through.
  • the pulling element (6) is fastened with its one end (30) on one side of the piston (11) in a holder (31) provided in the piston (11).
  • the traction element (6) is guided through the channel (39) in the first cover (1), and the first roller (2) is partially wrapped around it, through a further channel-like recess (4) in the first cover (1) from the first cover (1) led out and runs parallel to the outer surface of the cylinder tube (10) to the second cover (15).
  • the tension element (6) dips into a channel-like recess (14) in the second cover (15), partially wraps around the second roller (12), emerges from the second channel (19) of the second cover (15) and is with its other End (29) attached to a holder (26) of the piston (11) on the side of the piston (11) which faces the second cover (15).
  • the space for the roller (2) and the second channel (4) in the first cover (1) is in one in the inner wall of the tubular molding (36) of the first cover (1) provided circumferential groove (37) a sealing ring (38) designed as a groove ring is mounted, which sealingly surrounds the tension element (6) at this point.
  • the profile tube has a guide (5) for a driver (8, 9) running in the direction of the longitudinal axis of the cylinder.
  • the driver (8) is connected to the tension element (6) in such a way that when the piston (11) is moved, the driver (8, 9) is moved in the longitudinal direction of the cylinder by means of the tension element (6).
  • the piston (11) has a pot-shaped recess (7) or (25) on each of its two ends, which cooperate with the tubular projections (36) or (18) in such a way that in the respective end position of the piston ( 11) the corresponding tubular formation (36) or (18) is immersed in the associated recess (7) or (25) of the piston (11).
  • Fig.2 the cylinder made from a profile tube with driver is shown in section.
  • the cylinder has an oval-shaped cylinder bore in which the likewise oval piston (11) is slidably arranged.
  • the piston (11) can of course also have any other cross-sectional shape, such as an elliptical or a circular cross-sectional shape.
  • the likewise oval-shaped tension element (6) is fastened in the area of the longitudinal axis of the piston (11).
  • the tension element (6) is composed of three tension strands (42, 43, 44) arranged side by side, which are enclosed by an oval jacket (45) common to all tension strands (42, 43, 44).
  • the jacket (46) can e.g. are made of plastic. Of course, more than three pull strands can also be provided.
  • a single flat ribbon-like tensile strand can be provided, which is surrounded by an oval jacket.
  • the flat ribbon-like tension cord can be provided with elevations, depressions or perforations in order to prevent the tension cord and casing from being displaced relative to one another. If, for example, openings are provided, the material of the jacket can pass through the openings during the sheathing process, web-like connecting pieces being formed between the jacket part on one side of the tension cord and the jacket part on the side of the tension cord facing away from this side.
  • the piston (11) and also the tension element (6) are arranged in the tubular body (10) in such a way that the plane of their largest diameter is essentially parallel to the transverse axis of the guide (9) running in the direction of the longitudinal axis of the tubular body (10). for the driver (8).
  • the articulation point (46) for the tension element (6) on the driver (8, 9) is provided at a location on the driver (8) which is close to the inside of the guide (5) outer lateral surface of the cylinder tube (10) is located.
  • the essence of the invention can be seen in the cross-sectional shape of the tension element, the tension element having a cross-section with a continuous circumferential line deviating from the circular shape.
  • the extent of the cross section transverse to the plane in which the tension element is guided should be considerably larger than in the direction perpendicular to it.
  • the tensile cord or the tensile cords can consist of a metallic material, such as steel, or of a plastic, such as aramid fiber.
  • the sheath surrounding the tension cord or the tension cords preferably consists of a plastic material, such as polyurethane. If a tension cord, which preferably consists of a heavy-duty plastic material, is used, then a sheathing can be dispensed with.
  • a tension cord which preferably consists of a heavy-duty plastic material, is used, then a sheathing can be dispensed with.
  • the fact that the piston has a cross-sectional shape that deviates from the circular shape ensures that the piston is prevented from rotating. At the same time, a flat design of the working cylinder is achieved by this measure.
  • the passage cross section of the sealing elements in the through openings for the tension element is adapted to the profile of the tension element.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Vehicle Body Suspensions (AREA)
EP89123620A 1989-02-23 1989-12-21 Vérin à fluide sous pression Expired - Lifetime EP0384032B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89123620T ATE69861T1 (de) 1989-02-23 1989-12-21 Druckmittelbetaetigbarer arbeitszylinder.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3905561A DE3905561C2 (de) 1989-02-23 1989-02-23 Druckmittelbetätigbarer Arbeitszylinder
DE3905561 1989-02-23

Publications (3)

Publication Number Publication Date
EP0384032A1 true EP0384032A1 (fr) 1990-08-29
EP0384032B1 EP0384032B1 (fr) 1991-11-27
EP0384032B2 EP0384032B2 (fr) 1996-08-21

Family

ID=6374736

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89123620A Expired - Lifetime EP0384032B2 (fr) 1989-02-23 1989-12-21 Vérin à fluide sous pression

Country Status (8)

Country Link
US (1) US5035171A (fr)
EP (1) EP0384032B2 (fr)
JP (1) JPH02240405A (fr)
AT (1) ATE69861T1 (fr)
BR (1) BR9000924A (fr)
CA (1) CA2010624A1 (fr)
DE (2) DE3905561C2 (fr)
ES (1) ES2029111T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492750A1 (fr) * 1990-12-20 1992-07-01 MANNESMANN Aktiengesellschaft Cylindre profilé pour vérin sans tige
EP0735277A3 (fr) * 1995-03-28 1996-10-09 MANNESMANN Aktiengesellschaft Vérin hydraulique fonctionnant au moyen de fluides
EP0828083A3 (fr) * 1996-09-06 1998-05-06 Deutsche Star GmbH Unité de guidage rectiligne
DE4111887C2 (de) * 1991-04-09 1999-10-21 Mannesmann Ag Abdichtung eines druckmittelbetriebenen Arbeitszylinders

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2239082B (en) * 1989-12-15 1993-09-08 Roy Hutchison Recoilless air gun
DE4027636C2 (de) * 1990-08-31 1994-03-17 Airtec Pneumatic Gmbh Fluidgetriebener kolbenstangenloser Arbeitszylinder
DE4029721C3 (de) * 1990-09-17 1997-04-03 Mannesmann Ag Kolbenstangenloser Zylinder
FR2670840B1 (fr) * 1990-12-20 1993-03-19 Diebolt Remy Actionneur d'articulation pour la mise en óoeuvre de tous mouvements rectilignes ou rotatifs.
DE4139919C2 (de) * 1991-12-04 1994-01-20 Freudenberg Carl Fa Dichtung für einen hin- und hergehenden Körper
DE4345288C2 (de) * 1992-10-08 2000-03-09 Ckd Corp Stangenloser Zylinder
JP2549709Y2 (ja) * 1992-11-02 1997-09-30 シーケーディ株式会社 ロッドレスシリンダ
SE510396C2 (sv) * 1992-10-08 1999-05-17 Ckd Corp Kolvstångslös cylinder
US5303638A (en) * 1993-02-26 1994-04-19 Green Joseph H Rodless piston and cylinder assembly for a reciprocating carriage
DE19636272A1 (de) * 1996-09-06 1998-03-12 Star Gmbh Linearführungseinrichtung
DE19636270A1 (de) * 1996-09-06 1998-03-12 Star Gmbh Linearführungseinheit
US5806439A (en) * 1997-04-23 1998-09-15 Concept Unlimited Inc. Transport system for automatic teller machines
US5836256A (en) * 1997-07-02 1998-11-17 Concept Unlimited Inc Apparatus for moving automatic teller machines between retracted and extended positions
SE511257C2 (sv) * 1998-01-29 1999-09-06 Vbg Prod Ab Manöveranordning
KR200276748Y1 (ko) * 2001-12-07 2002-05-27 박외숙 환봉형 체인 로드레스 실린더
DE102005029664B3 (de) * 2005-06-21 2006-08-31 Rud-Kettenfabrik Rieger & Dietz Gmbh U. Co. Gleitschutzvorrichtung
DE202007004693U1 (de) * 2007-03-30 2008-08-14 Robert Bosch Gmbh Lineareinheit
KR101706094B1 (ko) * 2010-01-14 2017-02-14 삼성전자주식회사 로봇용 관절 구동장치 및 이를 포함하는 로봇, 로봇용 관절 구동장치의 케이블 연결방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2524271A (en) * 1942-08-13 1950-10-03 Trico Products Corp Piston operated locking means for servomotors
US3745888A (en) * 1971-11-24 1973-07-17 Gen Motors Corp Fluid operated linear motor
DE2359013A1 (de) * 1973-11-27 1975-05-28 Witte & Sohn C Kolbenzylinderaggregat
DE2404244A1 (de) * 1974-01-30 1975-08-07 Ahrendt & Birkendahl Ohg Kolbenstangenloser arbeitszylinder
DE2938332A1 (de) * 1979-09-21 1981-03-26 Robert Bosch Gmbh, 70469 Stuttgart Kolbenstangenloser arbeitszylinder

Family Cites Families (12)

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DE1293037B (de) * 1961-08-23 1969-04-17 Berlin Heinz Durch gasfoermiges oder fluessiges Treibmittel betriebene Foerdervorrichtung zur Erzeugung von hin- und hergehenden Bewegungen von grossem Hub
US4052911A (en) * 1973-05-18 1977-10-11 Incom International Inc. Cable core conduit
DE2519251A1 (de) * 1975-04-30 1976-11-11 Reinhold Pilzecker Arbeitsgeraet, bestehend aus kolbenstange und zylinder
US4057257A (en) * 1977-01-10 1977-11-08 Tol-O-Matic, Inc. Seal assembly
DE2800318A1 (de) * 1978-01-04 1979-07-12 Erhard Rilling Pneumatische oder hydraulische zylinder/kolben-anordnung mit abtriebswelle
YU143979A (en) * 1979-06-19 1983-01-21 Miln Dobljekar Cylinder with a chain
DE2939153C2 (de) * 1979-09-27 1983-12-22 Dürkoppwerke GmbH, 4800 Bielefeld Strömungsmittelbetriebener Linearantrieb für ein mit großem Hub geradlinig bewegtes Abtriebsglied
DE3317113A1 (de) * 1983-05-10 1984-11-15 Knorr-Bremse GmbH, 8000 München Positioniereinrichtung fuer kolbenstangenlose zylinder
US4683774A (en) * 1984-03-08 1987-08-04 Delta Elettronica S.R.L. Bowden cable
DE3505167A1 (de) * 1985-02-15 1986-08-28 GAS Gesellschaft für Antriebs- und Steuerungstechnik mbH & Co KG, 7742 St Georgen Linearantrieb
CA1260360A (fr) * 1986-09-05 1989-09-26 Alan G. Dry Cylindre sans bielle
GB8621466D0 (en) * 1986-09-05 1986-10-15 Clarke D C Fluid operable devices

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2524271A (en) * 1942-08-13 1950-10-03 Trico Products Corp Piston operated locking means for servomotors
US3745888A (en) * 1971-11-24 1973-07-17 Gen Motors Corp Fluid operated linear motor
DE2359013A1 (de) * 1973-11-27 1975-05-28 Witte & Sohn C Kolbenzylinderaggregat
DE2404244A1 (de) * 1974-01-30 1975-08-07 Ahrendt & Birkendahl Ohg Kolbenstangenloser arbeitszylinder
DE2938332A1 (de) * 1979-09-21 1981-03-26 Robert Bosch Gmbh, 70469 Stuttgart Kolbenstangenloser arbeitszylinder

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492750A1 (fr) * 1990-12-20 1992-07-01 MANNESMANN Aktiengesellschaft Cylindre profilé pour vérin sans tige
DE4111887C2 (de) * 1991-04-09 1999-10-21 Mannesmann Ag Abdichtung eines druckmittelbetriebenen Arbeitszylinders
EP0735277A3 (fr) * 1995-03-28 1996-10-09 MANNESMANN Aktiengesellschaft Vérin hydraulique fonctionnant au moyen de fluides
EP0828083A3 (fr) * 1996-09-06 1998-05-06 Deutsche Star GmbH Unité de guidage rectiligne
US5868499A (en) * 1996-09-06 1999-02-09 Deutsche Star Gmbh Linear guiding unit

Also Published As

Publication number Publication date
DE58900502D1 (de) 1992-01-09
EP0384032B1 (fr) 1991-11-27
DE3905561A1 (de) 1990-08-30
JPH02240405A (ja) 1990-09-25
EP0384032B2 (fr) 1996-08-21
CA2010624A1 (fr) 1990-08-23
ES2029111T3 (es) 1992-07-16
DE3905561C2 (de) 1995-04-20
US5035171A (en) 1991-07-30
ATE69861T1 (de) 1991-12-15
BR9000924A (pt) 1991-02-19

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