DE1100907B - Pressurized jack - Google Patents

Pressurized jack

Info

Publication number
DE1100907B
DE1100907B DEC18239A DEC0018239A DE1100907B DE 1100907 B DE1100907 B DE 1100907B DE C18239 A DEC18239 A DE C18239A DE C0018239 A DEC0018239 A DE C0018239A DE 1100907 B DE1100907 B DE 1100907B
Authority
DE
Germany
Prior art keywords
cylinder
jack
parts
ring
constriction
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.)
Pending
Application number
DEC18239A
Other languages
German (de)
Inventor
Jean-Baptiste Nodier
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.)
CIE PARISIENNE OUTIL AIR COMPR
Compagnie Parisienne dOutillage a Air Comprime SA
Original Assignee
CIE PARISIENNE OUTIL AIR COMPR
Compagnie Parisienne dOutillage a Air Comprime SA
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 CIE PARISIENNE OUTIL AIR COMPR, Compagnie Parisienne dOutillage a Air Comprime SA filed Critical CIE PARISIENNE OUTIL AIR COMPR
Publication of DE1100907B publication Critical patent/DE1100907B/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/32—Constructional features with means for avoiding excessive shocks on completion of movements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/26—Adaptations or arrangements of pistons
    • 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
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/226—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having elastic elements, e.g. springs, rubber pads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
    • F16J15/022—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material
    • F16J15/024—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
    • F16J15/022—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material
    • F16J15/024—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity
    • F16J15/025—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity and with at least one flexible lip

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Fluid-Damping Devices (AREA)

Description

Druckmittelbetätigter Hebebock Die Erfindung bezieht sich auf einen druckmittelbetätigten Hebebock, dessen Zylinderbaden eine zur Zylinderwand hin offene Ringnut aufweist, in der eine aus einem Wulstring und aus in den Zylinderraum vorspringenden Erhöhungen ebestehende Dichtung angeordnet ist. Bei einem bekannten Hebebock dieser Ar t weist der Dichtungsring ausschließlich im Bereich der Ringnut zum Kolben hin vorspringende Erhöhungen auf. Von Nachteil ist bei einer derartigen Ausbildung des Dichtungsringes, daß der Teil des Dichtungsringes unter der Einwirkung des Kolbens in die Ringnut ausweicht, so daß der Kolben auf den Zylinderboden aufschlagen kann. Bei der bekannten Abdichtung nimmt der Wulstring selbst an der Dämpfung der Kolbenstöße teil und mußdaher einen verhältnismäßig großen Querschnitt haben. Infolge des damit verbundenen großen Nutquerschnittes ist die Gefahr von Undichtigkeiten gegeben.Pressure fluid operated jack The invention relates to a pressure-actuated jack, the cylinder baths of which are open towards the cylinder wall Has annular groove, in which one from a bead ring and protruding into the cylinder space Elevations e existing seal is arranged. In a known jack this Ar t the sealing ring only points towards the piston in the area of the ring groove protruding elevations. The disadvantage of such a design is Sealing ring that the part of the sealing ring under the action of the piston deviates into the annular groove so that the piston can hit the cylinder base. In the known seal, the bead ring itself takes part in the damping of the piston shocks part and must therefore have a relatively large cross-section. As a result of that connected large groove cross-section there is a risk of leaks.

Aufgabe der Erfindung ist es, den Hebelbock der eingangs genannten Art mit einfachen Mitteln derart weiter auszugestalten, daß Kolbenstöße auf den Zylinderboden gedämpft werden und gleichzeitig die Möglichkeit von Undichtigkeiten verringert wird.The object of the invention is the lever bracket of the aforementioned Art to further develop with simple means that piston strokes on the Cylinder bottom are dampened and at the same time the possibility of leaks is decreased.

Ein wesentliches Merkmal der Erfindung besteht darin, daß der Wulstring über eine Einschnürung mit einem sich gegen den Zylinderboden stützenden Dämpfungsring verbunden ist, der aus abwechselnd vorspringenden und zurückspringenden Teilen besteht. Die Dämpfung wird bei einem derart ausgestalteten Ring ausschließlich durch den vorspringenden Ringteil bewirkt. Der Ringwulst dient somit ausschließlich der Abdichtung. Ein Aufschlagen des Kolbens auf den Zylinderboden ist ausgeschlossen. Die Nut besitzt einen kleinen Querschnitt, wodurch die Gefahr von Undichtigkeiten verringert ist.An essential feature of the invention is that the bead ring via a constriction with a damping ring supported against the cylinder base is connected, which consists of alternately protruding and recessed parts. In the case of a ring designed in this way, the damping is provided exclusively by the protruding ring part causes. The annular bead is therefore used exclusively for sealing. The piston cannot hit the cylinder base. The groove owns a small cross-section, which reduces the risk of leaks.

Gemäß einem weiteren wesentlichen Merkmal der Erfindung ist die Oberfläche der zurückspringenden Teile in bekannter Weise flach und steht senkrecht zur Zylinderachse, während die vorspringenden Teile kugelkalottenförmig ausgebildet sind.According to a further essential feature of the invention is the surface the recessed parts are flat in a known manner and are perpendicular to the cylinder axis, while the protruding parts are formed in the shape of a spherical cap.

In der Zeichnung ist ein Ausführungsbeispiel des Hebebockes dargestellt, und zwar zeigt Fig. 1 einen Längsschnitt nach der Linie I-I in Fig. 2, Fig. 2 einen Schnitt nach d er Linie II-II in Fig. 1 und Fig.3 einen Schnitt nach der Linie III-III in Fig. 2.In the drawing, an embodiment of the jack is shown, namely Fig. 1 shows a longitudinal section along the line I-I in Fig. 2, Fig. 2 a Section along line II-II in FIG. 1 and FIG. 3 a section along line III-III in Fig. 2.

In den Figuren bezeichnen die Bezugszeichen die folgenden Teile: 1 die seitliche Wand des Zylinders, 2 den Kolben, 3 eine Dichtungspackung zwischen dem Zylinder und dem Kolben, 4 die Kolbenstange, 5 den Zylinderboden, 6 den Wulstring, 7 einen zurückspringenden und 8 einen vorspringenden Teil des Dämpfungsringes, 9 die Einschnürung, die durchlocht oder gezackt sein kann.In the figures, the reference symbols denote the following parts: 1 the side wall of the cylinder, 2 the piston, 3 a packing between the cylinder and the piston, 4 the piston rod, 5 the cylinder base, 6 the bead ring, 7 a recessed part and 8 a projecting part of the damping ring, 9 the constriction, which can be perforated or jagged.

Wie aus den Figuren @ersichtlich ist, sind in der dargestellten Ausführungsform,die zurückspringenden Teile flach und senkrecht zur Zylinderachse und die vorspringendenTeilekugelkalottenförmiig ausgebildet.As can be seen from the figures, are in the illustrated embodiment, the recessed parts are flat and perpendicular to the cylinder axis and the projecting parts are spherical educated.

Claims (3)

PATENTANSPRÜCHE: 1. Druckmittelbetätigter Hebebock, dessen Zylinderboden eine zur Zylinderwand hin offene Ringnut aufweist, in der eine aus einem Wulstring und aus in den Zylinderraum vorspringenden Erhöhungen bestehende Dichtung angeordnet ist, dadurch gekennzeichnet, daß der Wulstring (6) über eine Einschnürung (9) mit einem sich gegen den Zylinderboden (5) stützenden Dämpfungsring verbunden ist, der aus abwechselnd vorspringenden (8) und zurückspringenden (7) Teilen besteht. PATENT CLAIMS: 1. Pressure medium-operated jack, the cylinder bottom of which has an annular groove open towards the cylinder wall in which a seal consisting of a bead ring and protrusions projecting into the cylinder chamber is arranged, characterized in that the bead ring (6) has a constriction (9) is connected to a damping ring which is supported against the cylinder base (5) and consists of alternately projecting (8) and recessed (7) parts. 2. Hebebock nach Anspruch 1, dadurch gekennzeichnet, daß die Oberfläche der zurückspringenden Teile (7) in bekannter Weise flach ist und senkrecht zur Zylinderachse steht, während die vorspringenden Teile (8) kugelkalottenförmig ausgebildet sind. 2. Lifting jack according to claim 1, characterized in that the surface of the recessed Parts (7) is flat in a known manner and is perpendicular to the cylinder axis, while the protruding parts (8) are designed in the shape of a spherical cap. 3. Hebebock nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Einschnürung (9), wie an sich bekannt, durchlocht oder gezackt ist. In Betracht gezogene Druckschriften: Belgische Patentschrift Nr. 542 0791; französische Patentschrift Nr. 1 132 308.3. Jack after Claim 1 or 2, characterized in that the constriction (9), as per se known, perforated or jagged. Publications considered: Belgian U.S. Patent No. 542,0791; French patent specification No. 1 132 308.
DEC18239A 1958-01-24 1959-01-19 Pressurized jack Pending DE1100907B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1100907X 1958-01-24

Publications (1)

Publication Number Publication Date
DE1100907B true DE1100907B (en) 1961-03-02

Family

ID=9620677

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC18239A Pending DE1100907B (en) 1958-01-24 1959-01-19 Pressurized jack

Country Status (1)

Country Link
DE (1) DE1100907B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1269435B (en) * 1963-05-10 1968-05-30 Minnesota Rubber Co Sealing ring
DE4039172A1 (en) * 1990-12-05 1992-06-11 Mannesmann Ag WORK CYLINDERS WITH DAMPER DAMPING
DE29501243U1 (en) * 1995-01-27 1995-04-20 Festo Kg Working cylinder
DE19714647A1 (en) * 1997-04-09 1998-10-15 Suspa Compart Ag Piston rod and cylinder unit for pneumatic or hydropneumatic force reservoir, or shock absorber
EP1918592B2 (en) † 2006-11-03 2014-01-01 Carl Freudenberg KG Sealing ring assembly with sealing means, integrated cushioning means and end cap for a pneumatic cylinder

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE542079A (en) *
FR1132308A (en) * 1955-09-28 1957-03-07 Renault Improvements to pneumatic cylinders

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE542079A (en) *
FR1132308A (en) * 1955-09-28 1957-03-07 Renault Improvements to pneumatic cylinders

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1269435B (en) * 1963-05-10 1968-05-30 Minnesota Rubber Co Sealing ring
DE4039172A1 (en) * 1990-12-05 1992-06-11 Mannesmann Ag WORK CYLINDERS WITH DAMPER DAMPING
DE29501243U1 (en) * 1995-01-27 1995-04-20 Festo Kg Working cylinder
DE19600180A1 (en) * 1995-01-27 1996-08-01 Festo Kg Work cylinder operable by fluid
DE19714647A1 (en) * 1997-04-09 1998-10-15 Suspa Compart Ag Piston rod and cylinder unit for pneumatic or hydropneumatic force reservoir, or shock absorber
EP1918592B2 (en) † 2006-11-03 2014-01-01 Carl Freudenberg KG Sealing ring assembly with sealing means, integrated cushioning means and end cap for a pneumatic cylinder

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