EP0434991A1 - Power cylinder - Google Patents

Power cylinder Download PDF

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Publication number
EP0434991A1
EP0434991A1 EP19900122534 EP90122534A EP0434991A1 EP 0434991 A1 EP0434991 A1 EP 0434991A1 EP 19900122534 EP19900122534 EP 19900122534 EP 90122534 A EP90122534 A EP 90122534A EP 0434991 A1 EP0434991 A1 EP 0434991A1
Authority
EP
European Patent Office
Prior art keywords
connection
screw connection
pressure chamber
plug
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.)
Withdrawn
Application number
EP19900122534
Other languages
German (de)
French (fr)
Inventor
Rolf Dipl.-Ing. Müller
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0434991A1 publication Critical patent/EP0434991A1/en
Withdrawn legal-status Critical Current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
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/149—Fluid interconnections, e.g. fluid connectors, passages

Definitions

  • the invention relates to a cylinder according to the preamble of the main claim.
  • the line connection from the multi-way valve to the working cylinder is relatively complex in known devices of this type.
  • the working cylinder according to the invention with the characterizing features of the main claim has the advantage that the line connection between multi-way valve and working cylinder is very simple and practical.
  • FIG. 1 An embodiment of the invention is shown in the following description and drawing.
  • the latter shows in Figure 1 a working cylinder with multi-way valve and connecting line, in Figure 2 a swivel screw connection in longitudinal section and in Figure 3 a plan view and a partial section of the swivel screw connection.
  • 10 denotes a working cylinder, which is closed on both sides by covers 11, 12. Both in the cover 11 and in the cover 12 there is a pressure chamber (not shown) for actuating the piston. These parts are therefore not shown since they are not essential to the invention.
  • An elbow swivel screw connection 13 is arranged on the cover 11 at the inlet to the pressure chamber there. On this three connection bores 14 to 16 are formed, a tube 34 being connected to the connection bore 14, which is tightly attached to a screw 17, which is arranged on the cover 12 and has a connection to the pressure chamber there.
  • connection bores 15, 16 lie in the same plane as the connection bore 14, but extending transversely thereto.
  • the connection bores 14, 15 merge into one another, while the connection bore 16 is connected to an interior 18 of the swivel screw connection, from which a bore 19 leads into the pressure chamber on the cover 11.
  • An adjustable throttle 20, which runs in the direction of the bore 19, and a check valve 21 are arranged in the interior 18 of the swivel screw connection 13.
  • this throttle check valve need not necessarily be provided.
  • a double tube 23 provided with a jacket 24 leads to a multi-way valve 22.
  • the jacket 24, for example as a two-layer layer made of polyethylene, does not quite reach the two ends of the double tube 23.
  • the two ends 25, 26 on the The side facing the swivel screw connection is somewhat spread and is fastened in the bores 15, 16 via so-called plug-in connections 27, 28.
  • the other two ends 29, 30 of the double tube 23 are also spread apart and are also fastened with plug-in connections 31, 32 in the inlet bores of the directional control valve 22, which are not further specified. In this way, a simple and quickly mountable line connection is obtained between the swivel screw connection 13 and the directional control valve 22.

Abstract

The power cylinder has, on one side, a pivoting screw connection (13) which is connected to the pressure space located there. A double tube (23) leads from the pivoting screw connection (13) to a directional valve (22). The respective ends of the double tube are spread somewhat and connected to the pivoting screw connection and to the directional valve by means of plug-and-fix connections. <IMAGE>

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einem Arbeitszylinder nach der Gattung des Hauptanspruches. Die Leitungsverbindung vom Mehrwegeventil zum Arbeitszylinder ist bei bekannten Geräten dieser Art verhältnismäßig aufwendig.The invention relates to a cylinder according to the preamble of the main claim. The line connection from the multi-way valve to the working cylinder is relatively complex in known devices of this type.

Vorteile der ErfindungAdvantages of the invention

Der erfindungsgemäße Arbeitszylinder mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß die Leitungsverbindung zwischen Mehrwegeventil und Arbeitszylinder sehr einfach und zweckmäßig ausgebildet ist.The working cylinder according to the invention with the characterizing features of the main claim has the advantage that the line connection between multi-way valve and working cylinder is very simple and practical.

Zeichnungdrawing

Ein Ausführungsbeispiel der Erfindung ist in der nachfolgenden Beschreibung und Zeichnung wiedergegeben. Letztere zeigt in Figur 1 einen Arbeitszylinder mit Mehrwegeventil und Verbindungsleitung, in Figur 2 eine Schwenkverschraubung im Längsschnitt und in Figur 3 eine Draufsicht und einen Teilschnitt der Schwenkverschraubung.An embodiment of the invention is shown in the following description and drawing. The latter shows in Figure 1 a working cylinder with multi-way valve and connecting line, in Figure 2 a swivel screw connection in longitudinal section and in Figure 3 a plan view and a partial section of the swivel screw connection.

In Figur 1 ist mit 10 ein Arbeitszylinder bezeichnet, der beidseitig durch Deckel 11, 12 verschlossen ist. Sowohl im Deckel 11 wie auch im Deckel 12 befindet sich je ein nicht dargestellter Druckraum zum Betätigen des Kolbens. Diese Teile sind deshalb nicht dargestellt, da nicht erfindungswesentlich. Am Deckel 11 ist am Einlaß zum dortigen Druckraum eine Winkel-Schwenkverschraubung 13 angeordnet. An dieser sind drei Anschlußbohrungen 14 bis 16 ausgebildet, wobei an die Anschlußbohrung 14 ein Rohr 34 angeschlossen ist, das an einer Verschraubung 17 dicht befestigt ist, welche am Deckel 12 angeordnet ist und Verbindung zum dortigen Druckraum hat.In Figure 1, 10 denotes a working cylinder, which is closed on both sides by covers 11, 12. Both in the cover 11 and in the cover 12 there is a pressure chamber (not shown) for actuating the piston. These parts are therefore not shown since they are not essential to the invention. An elbow swivel screw connection 13 is arranged on the cover 11 at the inlet to the pressure chamber there. On this three connection bores 14 to 16 are formed, a tube 34 being connected to the connection bore 14, which is tightly attached to a screw 17, which is arranged on the cover 12 and has a connection to the pressure chamber there.

Die Anschlußbohrungen 15, 16 liegen in derselben Ebene wie die Anschlußbohrung 14, jedoch quer zu dieser verlaufend. Die Anschlußbohrungen 14, 15 gehen ineinander über, während die Anschlußbohrung 16 mit einem Innenraum 18 der Schwenkverschraubung verbunden ist, von der eine Bohrung 19 in den Druckraum am Deckel 11 führt. Im Innenraum 18 der Schwenkverschraubung 13 ist eine verstellbare Drossel 20 angeordnet, die in Richtung der Bohrung 19 verläuft, sowie ein Rückschlagventil 21. Dieses Drosselrückschlagventil braucht jedoch nicht unbedingt vorgesehen zu sein.The connection bores 15, 16 lie in the same plane as the connection bore 14, but extending transversely thereto. The connection bores 14, 15 merge into one another, while the connection bore 16 is connected to an interior 18 of the swivel screw connection, from which a bore 19 leads into the pressure chamber on the cover 11. An adjustable throttle 20, which runs in the direction of the bore 19, and a check valve 21 are arranged in the interior 18 of the swivel screw connection 13. However, this throttle check valve need not necessarily be provided.

Von der Schwenkverschraubung 13 führt ein mit einer Umhüllung 24 versehenes Doppelrohr 23 zu einem Mehrwegeventil 22. Die Umhüllung 24, beispielsweise als zweilagige Schicht aus Polyäthylen, reicht nicht ganz bis zu den beiden Enden des Doppelrohres 23. Die beiden Enden 25, 26 auf der der Schwenkverschraubung zugewandten Seite sind etwas gespreizt und sind über sogenannte Steckfix-Verbindungen 27, 28 in den Bohrungen 15, 16 befestigt. Die beiden anderen Enden 29, 30 des Doppelrohres 23 sind ebenfalls gespreizt und sind ebenfalls mit Steckfix-Verbindungen 31, 32 in den nicht weiter bezeichneten Einlaßbohrungen des Wegeventils 22 befestigt. Auf diese Weise erhält man eine einfache und schnell montierbare Leitungsverbindung zwischen der Schwenkverschraubung 13 und dem Wegeventil 22.From the swivel screw connection 13, a double tube 23 provided with a jacket 24 leads to a multi-way valve 22. The jacket 24, for example as a two-layer layer made of polyethylene, does not quite reach the two ends of the double tube 23. The two ends 25, 26 on the The side facing the swivel screw connection is somewhat spread and is fastened in the bores 15, 16 via so-called plug-in connections 27, 28. The other two ends 29, 30 of the double tube 23 are also spread apart and are also fastened with plug-in connections 31, 32 in the inlet bores of the directional control valve 22, which are not further specified. In this way, a simple and quickly mountable line connection is obtained between the swivel screw connection 13 and the directional control valve 22.

Claims (3)

Arbeitszylinder mit einer Winkel-Schwenkverschraubung (13) für den Anschluß des Druckraums der einen Seite des Arbeitszylinders einerseits über eine externe Leitung (34) zum Druckraum der anderen Seite des Arbeitszylinders sowie andererseits über eine Leitungsverbindung (23) zu einem Mehrwegeventil (22) (sogenannter Dreifachanschluß), dadurch gekennzeichnet, daß die Leitungsverbindung (23) aus einem Doppelrohr besteht, das mit Ausnahme der Anschlußenden (25, 26; 29, 30) mit einer Umhüllung (24) versehen ist und daß die Anschlußenden des Doppelrohrs als fixierbares Stecksystem (27, 28; 31, 32) ausgebildet sind.Working cylinder with an angle swivel screw connection (13) for connecting the pressure chamber on one side of the working cylinder on the one hand via an external line (34) to the pressure chamber on the other side of the working cylinder and on the other hand via a line connection (23) to a multi-way valve (22) (so-called Triple connection), characterized in that the line connection (23) consists of a double pipe which, with the exception of the connection ends (25, 26; 29, 30), is provided with a sheath (24) and that the connection ends of the double pipe as a fixable plug-in system (27 , 28; 31, 32) are formed. Zylinder nach Anspruch 1, dadurch gekennzeichnet, daß in der Schwenkverschraubung ein Drosselrückschlagventil (20, 21) in der Zuleitung zum nächstgelegenen Druckraum angeordnet ist.Cylinder according to Claim 1, characterized in that a throttle check valve (20, 21) is arranged in the swivel screw connection in the feed line to the nearest pressure chamber. Zylinder nach Anspruch 1, dadurch gekennzeichnet, daß das Stecksystem ein handelsübliches, selbstarretierendes Schnellstecksystem ist.Cylinder according to claim 1, characterized in that the plug-in system is a commercially available, self-locking quick-plug system.
EP19900122534 1989-12-23 1990-11-26 Power cylinder Withdrawn EP0434991A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8915136U 1989-12-23
DE8915136U DE8915136U1 (en) 1989-12-23 1989-12-23

Publications (1)

Publication Number Publication Date
EP0434991A1 true EP0434991A1 (en) 1991-07-03

Family

ID=6845794

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900122534 Withdrawn EP0434991A1 (en) 1989-12-23 1990-11-26 Power cylinder

Country Status (2)

Country Link
EP (1) EP0434991A1 (en)
DE (1) DE8915136U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1580476A1 (en) * 2004-03-22 2005-09-28 FESTO AG & Co Connector for fluid conduits
EP1602834A1 (en) * 2004-03-22 2005-12-07 FESTO AG & Co Connector for fluid conduits

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2953118A (en) * 1956-04-05 1960-09-20 Francis S Flick Port fitting
GB1139912A (en) * 1965-02-15 1969-01-15 Trevor Frederick Moss Improvements in or relating to extensible coils
GB1205007A (en) * 1966-03-02 1970-09-09 Kabel And Metallwerke Gutehoff Plastics pipes comprising a number of individual tubes
US3794079A (en) * 1971-08-27 1974-02-26 Us Navy Combination strength/hydraulic cable
FR2343280A1 (en) * 1976-03-05 1977-09-30 Bouteille Daniel Unidirectional flow restrictor for fluid pipe - has two channels connected by third channel with non return valve
FR2377569A1 (en) * 1977-01-13 1978-08-11 Gewerk Eisenhuette Westfalia HIGH PRESSURE MULTIPLE HYDRAULIC LINE, ESPECIALLY FOR HYDRAULIC SYSTEMS USED IN BOTTOM MINE OPERATIONS
DE8511546U1 (en) * 1985-04-18 1985-06-05 Festo KG, 7300 Esslingen Hose assembly made from flexible plastic material
GB2156033A (en) * 1984-03-21 1985-10-02 Festo Kg Multiple hose

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2953118A (en) * 1956-04-05 1960-09-20 Francis S Flick Port fitting
GB1139912A (en) * 1965-02-15 1969-01-15 Trevor Frederick Moss Improvements in or relating to extensible coils
GB1205007A (en) * 1966-03-02 1970-09-09 Kabel And Metallwerke Gutehoff Plastics pipes comprising a number of individual tubes
US3794079A (en) * 1971-08-27 1974-02-26 Us Navy Combination strength/hydraulic cable
FR2343280A1 (en) * 1976-03-05 1977-09-30 Bouteille Daniel Unidirectional flow restrictor for fluid pipe - has two channels connected by third channel with non return valve
FR2377569A1 (en) * 1977-01-13 1978-08-11 Gewerk Eisenhuette Westfalia HIGH PRESSURE MULTIPLE HYDRAULIC LINE, ESPECIALLY FOR HYDRAULIC SYSTEMS USED IN BOTTOM MINE OPERATIONS
GB2156033A (en) * 1984-03-21 1985-10-02 Festo Kg Multiple hose
DE8511546U1 (en) * 1985-04-18 1985-06-05 Festo KG, 7300 Esslingen Hose assembly made from flexible plastic material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1580476A1 (en) * 2004-03-22 2005-09-28 FESTO AG & Co Connector for fluid conduits
EP1602834A1 (en) * 2004-03-22 2005-12-07 FESTO AG & Co Connector for fluid conduits

Also Published As

Publication number Publication date
DE8915136U1 (en) 1991-04-25

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