EP0961036B1 - Arbeitszylinder - Google Patents
Arbeitszylinder Download PDFInfo
- Publication number
- EP0961036B1 EP0961036B1 EP99890157A EP99890157A EP0961036B1 EP 0961036 B1 EP0961036 B1 EP 0961036B1 EP 99890157 A EP99890157 A EP 99890157A EP 99890157 A EP99890157 A EP 99890157A EP 0961036 B1 EP0961036 B1 EP 0961036B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring
- piston
- piston rod
- cylinder
- 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.)
- Expired - Lifetime
Links
- 238000007906 compression Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
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
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1476—Special return means
-
- 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
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
Definitions
- the invention relates to a double-acting cylinder with a cylinder tube and end pieces existing cylinder, one in this cylinder by the Effect of a pressure medium introduced over the end pieces displaceable Piston, one connected to the piston and outside the cylinder guided piston rod for transmitting the piston movement to the one to be moved Elements and one with the piston or the piston rod and one of the end pieces connected spring.
- the object of the present invention is therefore a double-acting working cylinder, which is simply constructed and the use of a built-in spring lowest possible progression without increasing its overall length, based on the usable hub.
- this object is achieved in that the piston rod is designed as a hollow tube, the spring at least over part of it axial expansion within the piston rod and recorded with a first end inside the bore in the piston rod and with the second End is attached to the end opposite the hole.
- Another advantage of the invention Construction is that at one of the horizontal deviating working situation due to and based on the aforementioned Advantages within a wide range adjustable design of the spring firmly coupled Masses can be compensated, so that the influence of the mass for their perpendicular movement components are compensated and thus printing medium can be saved.
- the spring with its second end on a protruding into the bore of the piston rod Projection is attached to an end piece of the cylinder. So that is more appropriate Length of the bore in the piston rod and the spring a rest position adjustment in any central position of the piston in the cylinder possible in which middle position the spring has no tensile or compressive forces exercises. However, this is the optimal guiding and securing the spring against Bend out by covering the spring as long as possible with the piston rod guaranteed.
- a particularly simple and safe embodiment provides that the Spring is a coil spring.
- the spring is a gas spring.
- the gas springs have the advantage over coil springs that none Buckling and chafing on the inside of the bore in the piston rod occurs, so that a long, trouble-free and maintenance-free operation is possible.
- a compression spring is advantageously provided.
- the depressurized piston can simply be returned to the retracted position or biased in this direction to compensate for a coupled mass become.
- a middle position is easiest by using a Reach tension-compression spring.
- the double effect of the working cylinder ensures that its movement in one direction faster and / or with low compressed air consumption or with compensation of the weight of a coupled mass and in the other direction a certain damping or slowing down same supply pressure of the pressure medium as achieved for the opposite direction can be.
- a cylinder tube 1 is closed at both ends by end pieces 2, 3, the two end pieces 2, 3 clamped together, for example by screws could be.
- Both in the lid 2 and in the bottom 3 of the working cylinder are passages 4 for the supply of the gaseous pressure medium, preferably Air, provided, through which this pressure medium in the respective Working chamber of the working cylinder arrives and the piston 5 inside the Cylinder tube 1 moves.
- the gaseous pressure medium preferably Air
- the exact interplay of ventilation the working chambers and the components intended for them are general are known and are therefore not described in detail here.
- the movement of the Piston 5 is on the piston rod 6 towards the through the working cylinder Transferring moving element, for which purpose the piston rod 6 sealed by the Cover 2 is passed.
- the piston rod 6 is provided with an axial bore, in which a spring element, here preferably a gas spring 7, with the advantages of particularly low progression and security against Buckling and abrasion on the inner wall of the piston rod 6, added is.
- a spring element here preferably a gas spring 7, with the advantages of particularly low progression and security against Buckling and abrasion on the inner wall of the piston rod 6, added is.
- This spring element it could possibly also be a coil spring or an equivalent spring element can be provided, is preferably on Bottom of the bore in the piston rod by means of at least one fixing element 8 and at the end of the working cylinder opposite the bore, i.e. attached to the floor 3 by means of at least one further fixing element 9.
- the spring 7 is selected as a tension or compression spring depends on in which end position of the pistons 5 are reset by the spring action should.
- a gas tension spring is preferably to be biased towards used. This tension spring then exercises a when extending the piston rod 6 steadily increasing restoring force in the position shown of the piston 5 out.
- preloading or resetting into the cover side End position of the piston 5 uses a tension spring, which in the drawing position shown would be the most deflected and a resetting would exert force on the lid 2.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Fluid-Damping Devices (AREA)
Description
Claims (7)
- Doppelt-wirkender Arbeitszylinder mit einem aus Zylinderrohr (1) und Endstücken (2, 3) bestehenden Zylinder, einem in diesem Zylinder durch die Wirkung eines über die Endstücke (2, 3) eingeleiteten Druckmediums verschiebbaren Kolben (5), einer mit dem Kolben (5) verbundenen und nach außerhalb des Zylinders geführten Kolbenstange (6) zur Übertragung der Kolbenbewegung auf zu bewegende Elemente und einer mit dem Kolben (5) oder der Kolbenstange (6) und einem (3) der Endstücke verbundenen Feder (7), dadurch gekennzeichnet, daß die Kolbenstange (6) als hohles Rohr ausgeführt ist, die Feder (7) zumindest über einen Teil ihrer axialen Ausdehnung innerhalb der Kolbenstange (6) aufgenommen und mit einem ersten Ende im Inneren der Bohrung in der Kolbenstange (6) und mit dem zweiten Ende am der Bohrung gegenüberliegenden Endstück (3) befestigt ist.
- Arbeitszylinder nach Anspruch 1, dadurch gekennzeichnet, daß die Feder (7) mit ihrem zweiten Ende an einem in die Bohrung der Kolbenstange (6) ragenden Vorsprung des Endstücks des Zylinders befestigt ist.
- Arbeitszylinder nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Feder (7) eine Schraubenfeder ist.
- Arbeitszylinder nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Feder (7) eine Gasfeder ist.
- Arbeitszylinder nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Feder (7) eine Druckfeder ist.
- Arbeitszylinder nach zumindest einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Feder (7) eine Zugfeder ist.
- Arbeitszylinder nach zumindest einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Feder (7) eine Zug-Druck-Feder ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT92098 | 1998-05-29 | ||
AT0092098A AT406600B (de) | 1998-05-29 | 1998-05-29 | Arbeitszylinder |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0961036A2 EP0961036A2 (de) | 1999-12-01 |
EP0961036A3 EP0961036A3 (de) | 2001-12-19 |
EP0961036B1 true EP0961036B1 (de) | 2003-10-29 |
Family
ID=3502882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99890157A Expired - Lifetime EP0961036B1 (de) | 1998-05-29 | 1999-05-19 | Arbeitszylinder |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0961036B1 (de) |
AT (1) | AT406600B (de) |
DE (1) | DE59907503D1 (de) |
ES (1) | ES2211024T3 (de) |
HU (1) | HU222216B1 (de) |
PT (1) | PT961036E (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT412114B (de) * | 2002-09-25 | 2004-09-27 | Hoerbiger Hydraulik | Doppeltwirkender arbeitszylinder |
AT505160B1 (de) * | 2007-05-30 | 2008-11-15 | Bogner Fritz Mag | Hydrauliksystem |
AT505440B1 (de) * | 2007-05-30 | 2009-03-15 | Bogner Fritz Mag | Hydrauliksystem |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE358450B (de) * | 1971-11-26 | 1973-07-30 | Assa Ab | |
DE2220452C3 (de) * | 1972-04-26 | 1980-03-20 | Kloeckner-Werke Ag, 4100 Duisburg | Rückzylinder für Strebförderer mit einer eingebauten Dosiervorrichtung zur Hubbegrenzung |
DE2431654A1 (de) * | 1974-07-02 | 1976-01-22 | Festo Maschf Stoll G | Arbeitszylinder fuer pneumatische und hydraulische medien |
SE430183B (sv) * | 1980-02-22 | 1983-10-24 | Asea Ab | Servocylinder med genomgaende kolvstang |
DE3241912A1 (de) * | 1982-11-12 | 1984-05-17 | Stabilus Gmbh, 5400 Koblenz | Pneumatische zugfeder |
DE3839446A1 (de) * | 1987-11-28 | 1989-06-15 | Hemscheidt Maschf Hermann | Hydro-pneumatischer stoss- und schwingungsdaempfer mit innenrohr |
DE3904644C1 (en) * | 1989-02-16 | 1990-03-29 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal, De | Hydraulic pit prop |
DE3925519C2 (de) * | 1989-08-02 | 1996-07-25 | Hemscheidt Fahrwerktech Gmbh | Hydropneumatische Kolbenzylinderanordnung |
DE4126221C2 (de) * | 1991-08-08 | 2000-11-09 | Festo Ag & Co | Arbeitszylinder |
-
1998
- 1998-05-29 AT AT0092098A patent/AT406600B/de not_active IP Right Cessation
-
1999
- 1999-05-19 ES ES99890157T patent/ES2211024T3/es not_active Expired - Lifetime
- 1999-05-19 DE DE59907503T patent/DE59907503D1/de not_active Expired - Fee Related
- 1999-05-19 EP EP99890157A patent/EP0961036B1/de not_active Expired - Lifetime
- 1999-05-19 PT PT99890157T patent/PT961036E/pt unknown
- 1999-05-28 HU HU9901763A patent/HU222216B1/hu not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
HUP9901763A2 (hu) | 2000-04-28 |
EP0961036A3 (de) | 2001-12-19 |
ATA92098A (de) | 1999-11-15 |
HUP9901763A3 (en) | 2002-02-28 |
HU222216B1 (hu) | 2003-05-28 |
ES2211024T3 (es) | 2004-07-01 |
PT961036E (pt) | 2004-03-31 |
AT406600B (de) | 2000-06-26 |
DE59907503D1 (de) | 2003-12-04 |
EP0961036A2 (de) | 1999-12-01 |
HU9901763D0 (en) | 1999-07-28 |
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