EP0260344A2 - Cylindre pour fluide sous pression - Google Patents

Cylindre pour fluide sous pression Download PDF

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Publication number
EP0260344A2
EP0260344A2 EP86115369A EP86115369A EP0260344A2 EP 0260344 A2 EP0260344 A2 EP 0260344A2 EP 86115369 A EP86115369 A EP 86115369A EP 86115369 A EP86115369 A EP 86115369A EP 0260344 A2 EP0260344 A2 EP 0260344A2
Authority
EP
European Patent Office
Prior art keywords
band
sealing
tape
cylinder
longitudinal slot
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
EP86115369A
Other languages
German (de)
English (en)
Other versions
EP0260344B1 (fr
EP0260344A3 (en
Inventor
Reinhard Lipinski
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.)
Norgren Martonair Europa GmbH
Original Assignee
Proma Produkt- und Marketing GmbH
Proma Prod & Marketing GmbH
Norgren Martonair Europa 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 Proma Produkt- und Marketing GmbH, Proma Prod & Marketing GmbH, Norgren Martonair Europa GmbH filed Critical Proma Produkt- und Marketing GmbH
Priority to AT86115369T priority Critical patent/ATE54015T1/de
Publication of EP0260344A2 publication Critical patent/EP0260344A2/fr
Publication of EP0260344A3 publication Critical patent/EP0260344A3/de
Application granted granted Critical
Publication of EP0260344B1 publication Critical patent/EP0260344B1/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
    • F15B15/082—Characterised by the construction of the motor unit the motor being of the slotted cylinder type

Definitions

  • the invention relates to a pressure medium cylinder with an end-closed, longitudinally slotted cylinder tube, in which a sealed piston is guided so as to be longitudinally displaceable, which carries a force transmission element projecting outward through the longitudinal slot, the longitudinal slot of the cylinder tube in the longitudinal direction of the cylinder being arranged in the piston area under the piston area inside the cylinder tube
  • Force-transmitting element which is passed and sealed on both sides of the piston in contact with a sealing surface of the inner wall of the cylinder tube is sealed and covered on the outside of the cylinder tube by a flexible covering band which is guided over or through this in the region of the force-transmitting element and is held on both sides of the force-transmitting element on the outer side of the cylinder tube, and in the longitudinal direction of the cylinder on both sides of the piston the sealing tape through the cover tape by means of interacting through the longitudinal slot and over the B andrelange extending releasable connecting elements is held in contact with the associated sealing surface and the connecting elements depending on the longitudinal movement
  • the sealing tape and the cover tape are each designed in the form of flexible plastic profiled tapes, the connecting elements of which are formed on one band of longitudinal web and from a longitudinal groove formed on the other band exist, which is set up for receiving the web.
  • the maximum value of the pressure of the pressure medium with which the interior of the cylinder tube can be acted on is limited. This is due to the fact that when a certain maximum pressure is exceeded, there is a risk that the elastic plastic sealing tape will be pressed by the pressure medium into the longitudinal slot under plastic deformation and thus lose its sealing function.
  • the known pressure cylinder can therefore only be used in a lower pressure range, as is typical for pneumatic cylinders.
  • Both the sealing tape as well the cover band each have an essentially trapezoidal cross-sectional shape, while in the wall of the cylinder tube on both sides of the longitudinal slot, correspondingly inclined inclined surfaces are formed as sealing surfaces with which the elastomeric material layer of the respective band cooperates in a sealing manner.
  • permanent magnets are arranged in the region of the side edge of the longitudinal slot in the cylinder tube wall, the magnetic lines of force of which can close via the ferritic steel tape of both the sealing and the covering tape and thus exert a magnetic tensile force on these tapes .
  • the sealing effect which can be achieved by the elastomeric part of the two-layer sealing tape is limited in that the inner metal tape comes to rest on the oblique sealing surfaces and thus prevents further pressing of the elastomeric part against the sealing surfaces.
  • the cylinder tube must be designed to be relatively tight-tolerant in the area of its sealing surfaces and in the dimensions of the longitudinal slot, which is expensive and complex.
  • the object of the invention is to provide a pressure medium cylinder with a longitudinally slotted cylinder tube which, with a perfect seal of the longitudinal slot, is suitable for higher pressures of the pressure medium acting on it, without the production, which makes the manufacturing tolerances of the sealing or masking tape or the cylinder tube, very expensive, being very expensive , especially in the area of the longitudinal slot.
  • the pressure medium cylinder mentioned at the outset is characterized according to the invention in that the elastically deformable sealing tape has a reinforcing tape of higher strength connected to it, which is covered in the interior of the cylinder tube and is covered by the sealing tape towards the piston, and in that on the cylinder tube on both sides of the longitudinal slot and subsequently bearing surfaces are formed on the sealing surfaces, against which the reinforcing band can be supported.
  • the stiffening band is separated from the piston by the elastic sealing band or parts thereof, flattening or the like is not necessary. Measurements on the piston or the piston seals, because the elastic sealing band on the side facing the piston has its curvature following the cylindrical inner wall of the cylinder barrel can maintain.
  • the stiffening tape prevents the sealing tape from being pressed into the longitudinal slot, even under high pressure. This means that the pressure medium cylinder can absorb relatively high pressures of up to approx. 60 bar and more, such as are customary in low-pressure hydraulics. After all, they are Sealing surfaces and the contact surfaces of the stiffening tape are spatially separated from one another, with the result that the sealing function of the sealing tape in the area of the sealing surfaces cannot be impaired by the stiffening tape.
  • both the seal and the cover strip can be designed with a low overall height, ie flat, with simple profile shapes ensuring cost-effective production. Because of the aforementioned separation of the sealing and support surfaces, relatively large manufacturing tolerances can also be accepted without the fear of impairing the sealing function.
  • the stiffening band extends over the two contact surfaces over a contact width that is greater than or equal to the width of the longitudinal slot. In this way it is prevented that the sealing tape together with the stiffening tape can bulge into the longitudinal slot under the action of the pressure medium at very high pressures, which could possibly lead to a lifting of the elastic sealing tape from the sealing surfaces and thus to an impairment of the seal .
  • the stiffening band can be arranged directly on the upper side of the sealing band facing away from the piston, in such a way that it comes to rest directly on the bearing surfaces of the cylinder tube.
  • the stiffening tape can be embedded in the sealing tape for at least part of its width.
  • Simple manufacturing conditions for the cylinder tube and the sealing tape result if the essentially flat bearing surfaces are arranged at right angles or at an acute angle to the longitudinal center plane of the cylinder tube containing the cylinder tube axis.
  • the support surface can have an undercut that ensures a certain radial mobility of the parts of the stiffening band lying above these intersections under the action of the pressure medium. This measure can also or additionally counteract the already mentioned bulging of the stiffening band into the longitudinal slot under the action of the pressure medium.
  • the stiffening band has, at least on its side facing the longitudinal slot, an essentially flat surface which is at least approximately at right angles to the longitudinal center plane of the longitudinal slot.
  • the sealing tape and / or the stiffening tape in the area of the longitudinal slot are radially guided by guide surfaces formed in the wall of the cylinder tube is limited laterally guided.
  • the radial mobility is necessary in order to be able to lift the sealing tape from the longitudinal slot in the area of the force transmission element of the piston. The mobility is limited by the fact that the stiffening band comes to rest on the contact surfaces in the manner already mentioned.
  • the cover tape or the sealing tape can have at least one web running in the longitudinal direction of the cylinder, projecting into the longitudinal slot and profiled in cross-section, and the sealing tape or the cover tape can have two flanges delimiting a longitudinal groove, between which the web is elastically stable.
  • the thin stiffening tape itself can be made of any material having the required strength properties and the necessary flexibility, about a suitable plastic material. It would also be conceivable to form the stiffening tape by means of an integrated zone of increased stiffness and strength of the sealing tape which is elastomeric or substantially more flexible outside this zone.
  • the thin stiffening band can also consist of steel because steel, in particular spring steel, has particularly favorable properties for this purpose.
  • the arrangement can be made such that as a connecting element on the cover band there is arranged in the longitudinal direction of the cylinder, at least in places permanent magnetic holding band, which projects into the longitudinal slot and whose magnetic closing circuit extends over the stiffening band.
  • the sealing tape is thus held on the cover tape by magnetic forces, but no additional measures are required on the cylinder tube itself. Since the closing circles of the magnetic lines of force run exclusively within the longitudinal slot, the cylinder tube can also be made from any material, and thus also ferritic steel, etc.
  • the magnetic retaining band can either consist, for example, of a finely divided, flexible plastic material containing permanent magnetic particles, as is customary in strip form, for example as a door seal for refrigerators and the like, or it can consist of a flexible plastic material strip, in which permanent magnetic parts are used at intervals.
  • the surface of the holding tape facing the stiffening tape can run at a distance from the stiffening tape with an effective sealing and masking tape, forming an air gap, the air gap compensating for any manufacturing tolerances.
  • the masking tape can be supported on the outer wall of the cylinder tube or on the bottom of a longitudinal recess arranged in this outside of the longitudinal slot at a lateral distance from the edge of the longitudinal slot, with unsupported areas between the support points and the longitudinal slot edge of the masking tape.
  • This design gives the masking tape the possibility of springing back somewhat with the sealing tape when the connecting elements become effective, and thus to compensate for existing manufacturing and dimensional tolerances. It also acts in the same direction if the masking tape in the unsupported areas has a shape that influences its suspension properties - for example in the form of ribs, weakening zones, etc.
  • sealing tape has profiled sealing lips projecting laterally from the stiffening tape, which cooperate with the sealing surfaces and thus ensure a particularly effective seal.
  • the pressure medium cylinder shown schematically in Fig. 1 which can be used depending on the intended use as a pneumatic or low-hydraulic cylinder, has, for example, an aluminum cylinder tube 1, which is sealed at both ends by two attached end flanges 2 and in the cylindrical Interior 3, a cylindrical piston 4 is guided in a longitudinally displaceable manner.
  • the cylinder tube 1 is formed with a longitudinal slot 5 that is continuous over its length and through which a web-like force transmission element 6 rigidly connected to the piston 4 protrudes to the outside, which for connection to a not shown, of him driven machine element is set up.
  • the longitudinal slot 5 is sealed on both sides of the force transmission element 6 by a flexible sealing tape 7 which is arranged in the cylinder tube interior 3 and is anchored at both ends in the end flanges 2.
  • the sealing tape 7 is passed through a corresponding opening 8 in the piston area under the force transmission element 6 and held on both sides of the piston 4 with molded sealing lips 9 in contact with sealing surfaces 10.
  • the sealing surfaces 10 are arranged on both sides of the longitudinal slot 5; they are essentially flat and form an obtuse angle of approximately 120 ° with one another.
  • the masking tape 11, like the sealing tape 7, consists of a suitable plastic material.
  • the sealing tape 7 is held on both sides of the piston 4 by the cover tape 11 by means of cooperating through the longitudinal slot 5 and extending over the tape length releasable connecting elements with its sealing lips 9 on the sealing surfaces 10 in sealing contact.
  • These connecting elements to be explained in detail with reference to FIGS. 2-5 in various embodiments are fundamentally such that, depending on the longitudinal movement of the piston 4, they are continuously detached from one another and in front of that side of the piston which faces the shrinking cylinder space the other side of the piston are brought into engagement with one another, as is explained in detail, for example, in DE-PS 31 24 878.
  • the sealing tape 7 each has a flat, thin stiffening tape 13 of higher strength and of essentially rectangular cross-sectional shape, which extends over the entire length of the sealing tape.
  • the stiffening tape 13 is, for example, with the relatively soft, elastically deformable plastic or rubber material of the sealing tape 7 Gluing or vulcanizing, connected, but embodiments are also conceivable (Fig. 2), in which it is simply completely or partially covered by the material of the sealing tape 7, without own connecting means between the two tapes being present.
  • the stiffening tape 13 is an integral part of the sealing tape 7, such that, for example, the shaded area in the cross-sectional views according to FIGS. 2-5, the sealing tape 13 a zone with a higher strength and the stiffening tape 13 corresponding represents lower deformability.
  • the thin stiffening tape 13 which in the embodiment according to FIG. 2 optionally consists of a plastic material or steel, is arranged in all embodiments on the side of the sealing tape 7 facing away from the piston 4, so that it is directed towards the piston 4 in this area Corresponding to the cylindrical inner wall of the cylinder tube 1 curved sealing tape 7 is covered.
  • the stiffening band 13 is in each case so wide that it overlaps the contact surfaces 14 on both sides of the longitudinal slot 5.
  • the stiffening tape 13 can either in the manner shown in FIGS. 2,4 and 5 embedded at least over part of its width in the sealing tape 7 or, as illustrated in FIG. 3, attached to the sealing tape 7 lying on top so that it is supported against the bearing surfaces 14 either via intermediate parts 18 of the sealing tape 7 or directly via its essentially flat, exposed upper surface 19 (FIG. 3), which runs at least approximately at right angles to the longitudinal center plane 15.
  • the stiffening band 13 thus crosses the longitudinal slot 5 and, via its support on the bearing surfaces 14, holds the sealing tape 7 in the area of the longitudinal slot 5, so that even with high pressure medium pressure prevailing in the cylinder tube interior 3, the sealing tape 7, which is relatively easily deformable with regard to the sealing effect cannot be pressed into the longitudinal slot 5.
  • the arrangement in the embodiment according to FIG. 3 is such that the stiffening tape 13 supports the bearing surfaces 14 over a Support width overlaps that is greater than the width of the longitudinal slot 5.
  • the pressure applied across the width of the support surfaces 14 tends to push up the corresponding areas of the stiffening band 13, which are freely movable by the undercuts 16, with reference to FIG. 3. which counteracts the deformation of the stiffening strip 13 which takes place in the region of the longitudinal slot 5 and which is also directed upwards.
  • the stiffening band 13 remains essentially flat in the region of the longitudinal slot 5 or is even curved somewhat convexly towards the interior of the cylinder tube 3.
  • the connecting elements between the sealing tape and the cover tape 11 are symmetrical in the embodiment according to FIG. 2 by a on the cover tape 11 formed on the longitudinal center plane, longitudinal web 22, profiled in cross section, and interacting with it, provided on sealing band 7, provided longitudinal flanges 23.
  • the two flanges 23 are arranged at a distance from one another and clearly delimit a longitudinal groove 24 into which the web 22 engages. They are formed, moreover, by the edge areas of the sealing tape parts 18 which partially overlap the reinforcing tape 13 in the direction towards the longitudinal slot 5 and between which an exposed central area is present on the bottom of the groove 24.
  • a recess 25 is formed on the outside of the cylinder tube, which receives the cover band 11.
  • the arrangement is such that the cover band 11 is supported on the bottom of the recesses 25 at a lateral distance from the edge of the longitudinal slot 5 via molded support beads 26, which could also be divided in the longitudinal direction with the formation of discrete support elements.
  • the sealing tape 7 is held magnetically on the cover tape 11.
  • the stiffening band 13 consists of a thin ferritic steel band, while on the cover band 11 there is arranged at least a permanent magnetic holding band 28 running in the longitudinal direction of the cylinder, which projects into the longitudinal slot 5 and whose magnetic closing circuit runs over the ferromagnetic stiffening band 13.
  • the magnetic holding band 28 can alternately have magnetic poles of opposite polarity on the side facing the stiffening band 13, but it can also consist of a flexible plastic material in which finely divided permanent magnetic particles are embedded, as is known for elastic door sealing strips for refrigerators etc.
  • the dimensions of the interacting elements are selected such that when the sealing tape 7 is in contact with the cylinder tube wall, the stiffening tape 13 rests directly against the surface of the magnetic holding tape 28 facing it, essentially without an air gap.
  • the recesses 25 are each formed with a longitudinal shoulder 29, on which the cover band 11 rests in strips near the edge on both sides, so that the unsupported region 27 results on both sides.
  • molded support beads 26 or similar elements could naturally also be used, as shown in FIG. 5.
  • the arrangement is such that an air gap 30 is formed in the sealing state between the ferromagnetic stiffening band 13 and the surface of the holding band 28 facing it.
  • This air gap 30 permits an even greater tolerance compensation in the radial direction between the sealing tape 7 and the holding tape 11.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Pens And Brushes (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Gripping On Spindles (AREA)
  • Earth Drilling (AREA)
EP86115369A 1986-09-17 1986-11-06 Cylindre pour fluide sous pression Expired - Lifetime EP0260344B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86115369T ATE54015T1 (de) 1986-09-17 1986-11-06 Druckmittelzylinder.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3631514 1986-09-17
DE19863631514 DE3631514A1 (de) 1986-09-17 1986-09-17 Druckmittelzylinder

Publications (3)

Publication Number Publication Date
EP0260344A2 true EP0260344A2 (fr) 1988-03-23
EP0260344A3 EP0260344A3 (en) 1988-08-03
EP0260344B1 EP0260344B1 (fr) 1990-06-20

Family

ID=6309700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86115369A Expired - Lifetime EP0260344B1 (fr) 1986-09-17 1986-11-06 Cylindre pour fluide sous pression

Country Status (8)

Country Link
US (1) US4733604A (fr)
EP (1) EP0260344B1 (fr)
JP (1) JPS6376902A (fr)
AT (1) ATE54015T1 (fr)
BR (1) BR8702689A (fr)
CA (1) CA1271689A (fr)
DE (2) DE3631514A1 (fr)
ES (1) ES2016241B3 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3807786A1 (de) * 1987-03-12 1988-09-22 Ckd Corp Kolbenstangenloser zylinder
EP0345506A1 (fr) * 1988-06-08 1989-12-13 UNIVER S.p.A. Garniture d'étanchéité pour vérin pneumatique sans tige
EP0509117A1 (fr) * 1991-04-18 1992-10-21 Hygrama Ag Vérin à fluide sous pression
EP0531131A1 (fr) * 1991-09-06 1993-03-10 Smc Corporation Vérin sans tige
EP0662567A2 (fr) * 1994-01-11 1995-07-12 Invest Tech AG Actionneur linéaire sans tige
EP0684390A1 (fr) * 1994-05-18 1995-11-29 Hygrama Ag Vérin à piston sans tige
EP0690237A1 (fr) * 1994-06-28 1996-01-03 Festo KG Entraînement linéaire
EP1085218A3 (fr) * 1999-09-20 2003-09-17 Robert Bosch Gmbh Vérin sans tige
DE10300600B3 (de) * 2003-01-10 2004-04-29 Carl Freudenberg Kg Druckmittelzylindler mit einem längsgeschlitzten Zylinderrohr
EP1437514A2 (fr) * 2003-01-10 2004-07-14 Carl Freudenberg KG Vérin sans tige
EP1744062A3 (fr) * 2005-07-14 2009-07-22 Norgren GmbH Vérin avec amortissement de fin de course

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0389007A (ja) * 1989-08-22 1991-04-15 Univer Spa ロッドレス空気シリンダ用密栓装置
DE4027636C2 (de) * 1990-08-31 1994-03-17 Airtec Pneumatic Gmbh Fluidgetriebener kolbenstangenloser Arbeitszylinder
JPH04266606A (ja) * 1991-02-19 1992-09-22 Akio Matsui ロッドレスシリンダ
SE510396C2 (sv) * 1992-10-08 1999-05-17 Ckd Corp Kolvstångslös cylinder
DE4339828A1 (de) * 1993-11-23 1995-05-24 Hygrama Ag Kolbenstangenloser Druckmittelzylinder
US6257123B1 (en) 1997-10-24 2001-07-10 Phd, Inc. Rodless slides
US5988042A (en) * 1997-10-24 1999-11-23 Phd, Inc. Rodless cylinder with internal bearings
US5845582A (en) * 1997-11-13 1998-12-08 Aeromovel Global Corporation Slot sealing system for a pneumatic transportation system guideway
US5996469A (en) * 1998-04-07 1999-12-07 Greenco Manufacturing Corporation Rodless power cylinder
AT2689U1 (de) * 1998-07-01 1999-02-25 Hygrama Ag Kolbenstangenloser druckmittelzylinder
DE29817441U1 (de) * 1998-09-30 1998-12-10 Festo Ag & Co Linearantrieb
US6857780B2 (en) * 2002-11-15 2005-02-22 Phd, Inc. Rodless slide assembly

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2833533A1 (de) * 1977-08-04 1979-02-15 Bo Granbom Dichtungsvorrichtung fuer druckfluidumzylinder
DE3124915A1 (de) * 1981-06-25 1983-01-13 Kaiser, Siegmund H., Ing.(grad.), 7440 Nürtingen "druckmittelzylinder mit einem laengsgeschlitzten endseitig verschlossenen zylinderrohr
US4373427A (en) * 1980-01-31 1983-02-15 Tol-O-Matic, Inc. Fluid pressure cylinder
EP0082829A1 (fr) * 1981-12-22 1983-06-29 AB Mecman Dispositif associé à un cylindre à pression de fluide sans tige de piston
EP0147803A2 (fr) * 1983-12-23 1985-07-10 Tol-O-Matic, Inc. Cylindre à pression
DD236370A5 (de) * 1984-08-13 1986-06-04 ����`��@���k�� Kolbenstangenloser zylinder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124878A (en) * 1964-03-17 Sonic dental tool
GB470088A (en) * 1936-02-03 1937-08-03 Merz Franz Improvements in fluid-operated piston apparatus
DE3124878C1 (de) * 1981-06-25 1982-12-09 Kaiser, Siegmund H., Ing.(grad.), 7440 Nürtingen Druckmittelzylinder

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2833533A1 (de) * 1977-08-04 1979-02-15 Bo Granbom Dichtungsvorrichtung fuer druckfluidumzylinder
US4373427A (en) * 1980-01-31 1983-02-15 Tol-O-Matic, Inc. Fluid pressure cylinder
DE3124915A1 (de) * 1981-06-25 1983-01-13 Kaiser, Siegmund H., Ing.(grad.), 7440 Nürtingen "druckmittelzylinder mit einem laengsgeschlitzten endseitig verschlossenen zylinderrohr
EP0082829A1 (fr) * 1981-12-22 1983-06-29 AB Mecman Dispositif associé à un cylindre à pression de fluide sans tige de piston
EP0147803A2 (fr) * 1983-12-23 1985-07-10 Tol-O-Matic, Inc. Cylindre à pression
DD236370A5 (de) * 1984-08-13 1986-06-04 ����`��@���k�� Kolbenstangenloser zylinder

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3807786A1 (de) * 1987-03-12 1988-09-22 Ckd Corp Kolbenstangenloser zylinder
EP0345506A1 (fr) * 1988-06-08 1989-12-13 UNIVER S.p.A. Garniture d'étanchéité pour vérin pneumatique sans tige
EP0509117A1 (fr) * 1991-04-18 1992-10-21 Hygrama Ag Vérin à fluide sous pression
EP0531131A1 (fr) * 1991-09-06 1993-03-10 Smc Corporation Vérin sans tige
EP0662567A3 (fr) * 1994-01-11 1997-07-09 Invest Tech Ag Actionneur linéaire sans tige.
DE4400454A1 (de) * 1994-01-11 1995-07-20 Invest Tech Ag Kolbenstangenloser Linearantrieb
EP0662567A2 (fr) * 1994-01-11 1995-07-12 Invest Tech AG Actionneur linéaire sans tige
EP0684390A1 (fr) * 1994-05-18 1995-11-29 Hygrama Ag Vérin à piston sans tige
EP0690237A1 (fr) * 1994-06-28 1996-01-03 Festo KG Entraînement linéaire
EP1085218A3 (fr) * 1999-09-20 2003-09-17 Robert Bosch Gmbh Vérin sans tige
EP1437513A1 (fr) * 2003-01-10 2004-07-14 Carl Freudenberg KG Vérin à pression fluidique ayant un cylindre fendu
DE10300600B3 (de) * 2003-01-10 2004-04-29 Carl Freudenberg Kg Druckmittelzylindler mit einem längsgeschlitzten Zylinderrohr
EP1437514A2 (fr) * 2003-01-10 2004-07-14 Carl Freudenberg KG Vérin sans tige
DE10300603A1 (de) * 2003-01-10 2004-07-22 Carl Freudenberg Kg Druckmittelzylinder mit einem längsgeschlitzten Zylinderrohr
EP1437514A3 (fr) * 2003-01-10 2005-03-16 Carl Freudenberg KG Vérin sans tige
DE10300603B4 (de) * 2003-01-10 2006-10-19 Carl Freudenberg Kg Druckmittelzylinder mit einem längsgeschlitzten Zylinderrohr
EP1744062A3 (fr) * 2005-07-14 2009-07-22 Norgren GmbH Vérin avec amortissement de fin de course
US7581485B2 (en) 2005-07-14 2009-09-01 Norgren Gmbh Working cylinder with terminal position damping

Also Published As

Publication number Publication date
EP0260344B1 (fr) 1990-06-20
DE3672152D1 (de) 1990-07-26
JPS6376902A (ja) 1988-04-07
CA1271689A (fr) 1990-07-17
US4733604A (en) 1988-03-29
ES2016241B3 (es) 1990-11-01
EP0260344A3 (en) 1988-08-03
BR8702689A (pt) 1988-04-26
DE3631514A1 (de) 1988-03-24
ATE54015T1 (de) 1990-07-15

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