DE1429576A1 - Hydropneumatic lifting unit, especially for height-adjustable tables and chairs - Google Patents

Hydropneumatic lifting unit, especially for height-adjustable tables and chairs

Info

Publication number
DE1429576A1
DE1429576A1 DE19641429576 DE1429576A DE1429576A1 DE 1429576 A1 DE1429576 A1 DE 1429576A1 DE 19641429576 DE19641429576 DE 19641429576 DE 1429576 A DE1429576 A DE 1429576A DE 1429576 A1 DE1429576 A1 DE 1429576A1
Authority
DE
Germany
Prior art keywords
chamber
lifting unit
cylinder
chambers
oil
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
DE19641429576
Other languages
German (de)
Inventor
Reinhard Hoernlein
Otto Tacke
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.)
REINHARD HOERNLEIN KG HOLZ und
Original Assignee
REINHARD HOERNLEIN KG HOLZ und
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 REINHARD HOERNLEIN KG HOLZ und filed Critical REINHARD HOERNLEIN KG HOLZ und
Publication of DE1429576A1 publication Critical patent/DE1429576A1/en
Pending legal-status Critical Current

Links

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
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/26—Locking mechanisms
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A47B9/10—Tables with tops of variable height with vertically-acting fluid cylinder
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/30—Chairs or stools with vertically-adjustable seats with vertically-acting fluid cylinder
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
    • F15B11/072—Combined pneumatic-hydraulic systems
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
    • F15B11/072—Combined pneumatic-hydraulic systems
    • F15B11/076—Combined pneumatic-hydraulic systems with pneumatic drive or displacement and speed control or stopping by hydraulic braking
    • 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
    • F15B15/1466—Hollow piston sliding over a stationary rod inside the cylinder
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/216—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being pneumatic-to-hydraulic converters
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant throttles or orifices
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41527—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a directional control valve
    • F15B2211/41536—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a directional control valve being connected to multiple ports of an output member
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/455—Control of flow in the feed line, i.e. meter-in control
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/75—Control of speed of the output member
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/885—Control specific to the type of fluid, e.g. specific to magnetorheological fluid
    • F15B2211/8855—Compressible fluids, e.g. specific to pneumatics
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S60/00—Power plants
    • Y10S60/907—Working member positioned against counterforce by constantly applied motive fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Damping Devices (AREA)
  • Chairs Characterized By Structure (AREA)
  • Vehicle Body Suspensions (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Ropes Or Cables (AREA)
  • Actuator (AREA)

Abstract

1123030 Seats REINHARD HORNLEIN K G 12 Nov 1965 [14 Nov 1964 23 Dec 1964 28 Jan 1965 23 Mar 1965 24 Mar 1965] 48147/65 Index F2S 31 [Also in Division B8] A lifting unit, Fig.1, for adjusting the vertical height of a table for chair comprises a cylinder 1 with chambers 2, 3, 4. Chamber 2 contains gas under pressure and is bounded by a floating piston 7. Chambers 3 and 4 contain oil and are separated by a fixed wall 9. A guide 10 with a rod 11 is slidingly arranged in chamber 4. Connection between the chambers 3, 4 is through ports 12, 13 controlled by a slide valve 15 operated manually by a bar 21. In the position shown the chamber 3 is isolated from chamber 4 so that the unit is locked hydraulically. When the valve 15 is moved down so as to connect ports 12, 13 the gas in chamber 2 expands forcing the piston 7 down and transferring oil from chamber 3 to chamber 4, oil also passing from above the guide 10 to below it through a port 22, which may be a throttle port. So that chamber 4 can accommodate the additional oil the rod 11 is forced downwards. The guide 10 may have one or more one-way valves which permit rapid passage of oil during lowering. The chambers 2 and 3 may be separated by a solid or hollow ball 27, Fig.2 (not shown) of resilient material. As shown in Fig. 7 the chambers 2 and 3 may surround the chamber 4 as an outer cylinder. The chambers 2 and 3 may be larger in diameter than the chamber 4, Fig. 8 (not shown). Other types of valve may replace the slide valve 15 to control passage of oil from chamber 3 to chamber 4.

Description

Reinhard Hörnlein KG., 3*54 Bevern Kr. HolsmindenReinhard Hörnlein KG., 3 * 54 Bevern Kr. Holsminden

Hydropneumatisches Hebeaggregat, insbesondere für höhenverstellbare Tische und StühleHydropneumatic lifting unit, in particular for height-adjustable tables and chairs

Zusatz zu Patent (-anineldung H 54 327 Ia/60)Addendum to patent (registration H 54 327 Ia / 60)

Die Erfindung bezieht sich auf ein hydropneumatisches Hebeaggregat, insbesondere für höhenverstellbare Tische und Stühle, welches eine über ein Trennorgan gegenüber der Plüssigkeitssäule abgedichtete Gaskammer und zwei Flüssigkeitskammem aufweist, von denen die äußere die Kolbenstange aufnimmt. Die Kolbenstange ist mit dem Fußkreuz des Tisches oder des Stuhles verbunden. Der Zylinder der relativ zur Kolbenstange bewegbar ist, ist an der Tischplatte bsw. an mit der Tischplatte verbundenen Teilen befestigt.The invention relates to a hydropneumatic lifting unit, especially for height-adjustable tables and chairs, which has a separating element opposite the liquid column has sealed gas chamber and two liquid chambers, the outer one of which receives the piston rod. The piston rod is with the base of the table or chair tied together. The cylinder, which can be moved relative to the piston rod, is bsw on the table top. connected to the table top Parts attached.

Gegenstand des Patentes (der -anmeldung H 54 327 Ia/60)Subject of the patent (of the application H 54 327 Ia / 60)

isb ein Hebeaggregat, bei dem die Relativbewegung zwischen deu Zylinder und dem mit einer Kolbenstange versehenen Kolben hydraulisch blockierbar ist. 3u diesen Zweck ist in Bereich der Trennwand zwischen den ölkammern ein den Zylinder um-isb a lifting unit in which the relative movement between deu Cylinder and the piston provided with a piston rod can be blocked hydraulically. 3u this purpose is in area the partition between the oil chambers around the cylinder

909886/0009 6AD 909886/0009 6AD

schließender Schieber vorgesehen, der an den Enden gegenüber den Zylinder abgedichtet iat und eine nach innen "/ersetzte Dichtung aufweist. Zwischen den Dichtungen ist ein ria^fömij Strömuiigsraun oiigeordnet und Heiterhin befinden .^ioh an beiden Seiten der Trennwand Bohrungen in dem Syllndornantel, üo daß bei einer bestimmten Stellung des Schiebers die Trennwand zwischen den ölkammern umströmt werden, während bei einer anderen Stellung des Schiebers diese Umströnung unterbunden wird* Im letzteren Fall ist das Hebe aggregat hydraulisch blockiert.Closing slide is provided, which is sealed against the cylinder at the ends and an inwardly "/ replaced" one Has seal. Between the seals is a ria ^ fömij Strömuiigsraun are in order and serene. ^ Ioh on both sides the partition wall holes in the syllable thorn shell, üo that at a certain position of the slide the partition be flowed around between the oil chambers, while with one other position of the slide prevented this flow * In the latter case, the lifting unit is hydraulic blocked.

Der Erfindung liegt die Aufgabe zugrunde, den Gegenstand der Hauptanmeldung weiter zu entwickeln und eine hydraulische Blockierung mit einfacheren Kitteln zu erreichen.The invention is based on the object of the Main application to develop further and a hydraulic Blocking can be achieved with simpler smocks.

Erfindungsgemäß wird dies dadurch erreicht, daß die Trennwand zwischen den, Flüssigkeitskammern einen Durchflußkanal aufweist;, dem ein in Längsrichtung des Aggregates bewegbares Absperrorgan zugeordnet ist.According to the invention, this is achieved in that the partition between the liquid chambers has a flow channel; which is assigned a shut-off device which can be moved in the longitudinal direction of the unit.

Bei einer vorteilhaften Ausführungsform der Erfindung ist das Absperrorgan auf das Ende der unteren Flüssigkeitskammer schraubbar. Beide Flüssigkeitskammern weisen Verschlußscheiben auf, die mit zueinander versetzten Durchflußbohrungen versehen sind. Die untere Flüssigkeitskammer ist mit einem Außengewinde und die Verschlußscheibe der oberen Flüssigkeitskammer mit einem Gewindestutaen ausgestattet, der in das Außengewinde der unteren Flüssigkeitskammer schraubbar ist.In an advantageous embodiment of the invention that is The shut-off element can be screwed onto the end of the lower liquid chamber. Both liquid chambers have sealing discs that are provided with offset flow bores. The lower fluid chamber is externally threaded and the Sealing disc of the upper liquid chamber with a threaded rod equipped, which can be screwed into the external thread of the lower liquid chamber.

Durch eine einfache Drehbewegung des Zylinders, der die Gaskammer und die·obere Flüssigkeitskammer enthält, kann die gewünschteThe desired

90 9-885/0009 ' ■ - BAD QRlGiNAL90 9-885 / 0009 '■ - BAD QRlGiNAL

Einstellung des Absperrorgans zur Durchflußbohrung der Verschluß-Gclieibe der unteren Flüssigkeitskammer erreicht werden.Adjustment of the shut-off device for the flow-through hole of the closure Gclieibe the lower fluid chamber can be achieved.

lieben der hydraul!sehen Blockierung kann durch die Änderung des öffnungs<]y.erschiiittec der Du2.'chflußbohrung zwischen den Flüssigkeit ckaniaern die Hubgeschwindigkeit des Aggregates eingestellt werden. Diene Einstellung erfolgt durch eine einfache Drehbewegung.love the hydraul! see blocking can by changing of the opening <] y.erschiiittec of the Du2.'chflußbohrung between the Liquid ckaniaern the lifting speed of the unit is set will. Adjustment takes place through a simple Rotary motion.

Dem Absperrorgan nach der Erfindung kommt somit eine Doppelfunktion au. Hierdurch vereinfacht sich die Gestaltung des mit der Kolbenstange verbundenen Kolbens. Die Funktion dieses Kolbens erschöpft sich darin, der Flüssigkeit den Durchtritt von der einen Kolbenseite zur anderen zu gestatten und der Kolbenstange in dem Zylinder eine Führung su geben.The shut-off device according to the invention thus has a double function ouch This simplifies the design of the piston connected to the piston rod. The function of this Piston is exhausted in allowing the liquid to pass from one side of the piston to the other and the Give a guide to the piston rod in the cylinder.

Weitere Kennzeichen und Herkmale der Erfindung ergeben sich . aus den Unteransprüchen lind der folgenden Beschreibung vorteilhafter, beispielsweiser Ausfülirungsformen.Further characteristics and characteristics of the invention emerge. from the subclaims and the following description more advantageous, for example Ausfülirungsformen.

Es zeigen:§ It show: §

Fig. 1 das Hebeaggregat im Schnitt,Fig. 1 the lifting unit in section,

Fig. 2 eine andere Ausführungsförm des Absperrorgans.Fig. 2 shows another embodiment of the shut-off device.

Das Hebeaggregat besteht aus den Zylindern 1 und 2, die über ein Gewinde mit einander verbunden sind. Der Zylinder 1 enthält die Gaskammer 3 und die ölkammer 4. Zwischen diesen Kammern ist als Trennorgan eine Kugel 5 vorgesehen, die aus, elastischem Material gefertigt ist und so an der Zylinderwandung anliegt, daß das unter Druck stehende Gas nicht in das öl hinein difundieren kann. Die Kugel 5 kann als volle Kugel oder als e] jer.taltet sein.The lifting unit consists of cylinders 1 and 2, which have a thread are connected to each other. The cylinder 1 contains the gas chamber 3 and the oil chamber 4. Between these chambers a ball 5 is provided as a separating element, which is made of elastic material and thus rests against the cylinder wall, that the pressurized gas cannot diffuse into the oil. The ball 5 can be as a full ball or as e] jer.told be.

909886/0009 bad909886/0009 bath

Der Zylinder 1 weist- eine Verschluß scheibe 6 auf, die mit einem Gewindestutzen 7 einstückig ist. Der Gewindestutzen 7 ist am unteren Ende mit dem Zylinder 1 verschweißt. Die Verschluß scheibe 6 ist mit einem Ansatz & ausgerüstet, der eine konische Spitze 9 trägt. Weiterhin weist sie eine Durchflußbohrung 10 auf. -The cylinder 1 has a closure disc 6 which is integral with a threaded connector 7. The threaded connector 7 is welded to the cylinder 1 at the lower end. The closure disk 6 is equipped with a projection & which carries a conical tip 9. It also has a through-flow bore 10. -

Der Zylinder 2 ist mit einer Verschluß scheibe 11 ausgestattet, die einen Durchflußkanal 12 aufweist, der"mit dem Ansatz 8 und der konischen Spitze 9 zusammenarbeitet. Das obere Ende des Zylinders 2 ist mit einem Außengewinde 13 versehen, auf das der Gewinde stutz en 7 geschraubt ist. Zur Erzielung einer einwandfreien Dichtigkeit zwischen den Zylindern 1 und 2 sind 0-Ringe 14 am unteren Ende des Gewinde stutz ens vorgesehen.The cylinder 2 is equipped with a closure disk 11 which has a flow channel 12, the "with the approach 8 and the conical tip 9 cooperates. The upper end of the cylinder 2 is provided with an external thread 13 on which the threaded connector 7 is screwed. To achieve a flawless Tightness between the cylinders 1 and 2 O-rings 14 are provided at the lower end of the thread stutz ens.

Bei der in Hg, 1 aufgezeigten Stellung ist der Durchflußkanal 12 geschlossen und das Hebeaggregat hydraulisch blockiert'. In dieser Stellung besteht nämlich nicht die Höglichkeit, die Kolbenstange 15 in den Zylinder 2 einzufahren, da das öl nicht komprimiert werden kann* " . .In the position shown in Hg, 1 is the flow channel 12 closed and the lifting unit hydraulically blocked '. In in this position there is not the courtesy that To retract the piston rod 15 into the cylinder 2, since the oil is not can be compressed * "..

Will* man die Blockierung lösen, so ist es ausschließlich erforderlich , dea Zylinder 1 zu verdrehen, um im Zuge diöser-Drehbexfegtmg die konische Spitze 9· von dem Durchflußkanal 12If you want to solve the blockage, it is only necessary to turn the cylinder 1 in order to do this in the course of diöser-Drehbexfegtmg the conical tip 9 from the flow channel 12

■tsregzubewegeno - -■ tsregzubewegeno - -

Zu diesem Zitiect ist der Zylinder 1 mit einem«, von HaMaus zu betätigenden Hebel 16 ausgestattet.For this purpose , the cylinder 1 is equipped with a lever 16 to be operated by HaMaus.

¥ird der Btirchflußkanal 12 freigeg©ben3 so kann die Kolbenstange 15 in den Zylinder 2 eingefahren werden, da der hierzu erforder-If the flow channel 12 is released 3 , the piston rod 15 can be retracted into the cylinder 2, since the required

90988 5/000990988 5/0009

■"■■:" - . . - BAD ORI■ "■■ : " -. . - BAD ORI

liehe Ιί-r.im durüh die Komprimierung des Gasea, daa aicli in dor K'Uiiiaer > befi:ulob, geschaffen wird. Anderarseibs kann das Ί-αε bei ein.jr Freigäbe des Durchflußkanales 12 auf die ölsäule wirken und die Kolbenstange 15 aus dem Zylinder 2 herausfahren. ■Die Ge;::hwiiidijkeib dieser Hubbewegung wird durch die Größe das öffnungsquerschnitbes, die sich aus der Stellung des Absperrorgans gegenüber den Durchflußkanal 12 ergibt, bestimmt.borrowed Ιί-r.im durüh the compression of the gasea, daa aicli in dor K'Uiiiaer> befi: ulob, is created. Otherwise, the Ί-αε at ein.jr the flow channel 12 would open onto the oil column act and move the piston rod 15 out of the cylinder 2. ■ The Ge; :: hwiiidijkeib of this stroke movement is determined by the size of the öffnungsquerschnitbes resulting from the position of the shut-off device compared to the flow channel 12 results, determined.

In der Fig. 1 ist die Verschlußscheibe 6 mit einer Durchflußbohr ng 10 ausgerüstet. Es ist jedoch denkbar, in der Versohlußscheibe 6 mehrere Durchflußbohrungen vorzusehen.In Fig. 1, the closure disc 6 is with a Durchflußbohr ng 10 equipped. However, it is conceivable to provide several flow bores in the Versohlußscheibe 6.

Bei der in Fig. 2 aufgezeigten Abwandlungsform ist der Zylinder mit einer Verschlußscheibe 17 versehen, die ausschließlich eine Durchflußbohrung 18 aufweist. Dieser Durchflußbohrung 18 ist in der Verschlußscheibe 19 des Zylinders 2 eine versetzt angeordnete Durchflußbohrung 20 zugeordnet. Bei der in Fig. 2 aufgezeigten Stellung kann kein öl von dem Zylinder 1 in den Zylinder 2 bzw. umgekehrt, fließen. Entfernt man nun durch eine Drehbewegung des Zylinders 1 gegenüber dem Zylinder 2 die.Durchflußbohrungen 18,20 von einander, so wird die hydraulische Blockierung aufgehoben. Durch eine entsprechende Einregulierung des Abstandes der Bohrungen 18 und 20 kann eine Drosselwirkung erzielt werden, die die Hubgeschwindigkeit beeinflusst.In the modification shown in Fig. 2, the cylinder is provided with a closure disk 17, which has only one Has flow bore 18. This through-flow bore 18 is arranged in an offset manner in the closure disk 19 of the cylinder 2 Flow hole 20 assigned. In the position shown in FIG. 2, no oil can enter the cylinder from the cylinder 1 2 or vice versa, flow. If you remove the flow bores by rotating the cylinder 1 in relation to the cylinder 2 18.20 from each other, the hydraulic blocking is released. Through a corresponding adjustment the distance between the bores 18 and 20, a throttling effect can be achieved which influences the lifting speed.

Bei der in Fig. 1 aufgezeigten Konstruktion ist in dem Zylinder neben der ölkammer 4- eine Gaskammer 3 vorhanden. In Abwandlung dieser Ausführung ist es möglich, anstelle der Gaskammer einenIn the construction shown in Fig. 1, a gas chamber 3 is present in the cylinder in addition to the oil chamber 4-. In modification In this version, it is possible to use one instead of the gas chamber

909885/0009 bad original909885/0009 bad original

mit G-as gefüllten Hohlkörper in der ölkammer vorzusehen. Hohlkörper niiS elastisch sein, so daß er wie eine Feder auf die ölsäule mrlzt. Der liolilkörper lie^t an keiner Zylinderwandung an imd kr.rin dtircri das Einführen der Kolbenstange diformiert werden. Die v/eciiselwirlrung swischen diesen mit Gas gefüllten Hohlkörper und dex1 ölsäule ergibt sich im wesentlichen aus der Wahl des Gasdruckes.Provide hollow bodies filled with G-as in the oil chamber. Hollow body never has to be elastic, so that it hits the oil column like a spring. The body of the violet does not allow any cylinder wall to be deformed during the insertion of the piston rod. The v / eciiselwirlrung swischen this hollow body filled with gas and oil column dex 1 results essentially from the selection of the gas pressure.

Bad originalBathroom original

Claims (1)

1^295761 ^ 29576 Γ ·\ 1' e :ΐ I rs η s ρ r ü c h eΓ · \ 1 'e: ΐ I rs η s ρ r ü che 1. H^ilropiieuiuaiircheG Hebeaggregat, incbοsondere Tür höhenverntollLai'e Tische und Stühle, welches eine über ein Trennorgan gejenüber der Flüssigkeitssäule abgedichtete Gaskammer und zwei Flüosigkeitskammern aufweist, von denen die äußere die Kolbenstange aufnimmt. Nach Patent....... (-anmeldung H 54 327 Ia/60) dadurch gekennzeichnet, daß die Trennwand zwischen den Flüssigkeit Gkamm'ern einen Burchflußkanal (12,20) aufweist, dem ein in Längsrichtung des Aggx*egates bewegbares Absperrorgan zugeordnet ist.1. H ^ ilropiieuiuaiircheG lifting unit, incbοs special door höhenverntollLai'e Tables and chairs, which one has a partition gas chambers and two sealed over the liquid column Has fluid chambers, the outer of which is the piston rod records. According to patent ....... (-Application H 54 327 Ia / 60) characterized in that the partition between the liquid Gkamm'ern has a flow channel (12, 20) to which an in The longitudinal direction of the unit is assigned a movable shut-off device. 2. Hebe aggregat nach Anspruch i, dadurch gekennzeichnet, daß das Absperrorgan auf das Ende des unteren PlüssigkeitsZylinders (2) schraubbar ist.2. Lifting unit according to claim i, characterized in that the shut-off device on the end of the lower fluid cylinder (2) is screwable. r, ^.ebeaggregat nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß beide 3?lüssigkeitskammern miteinander zugeordneten Verschlußscheiben (6,11 -. 17»19) versehen sind, die versetzte Durchflußbohrungen (10,12-.18,2O) aufweisen. r, ^ .ebeaggregat according to claims 1 and 2, characterized in that both 3 fluid chambers are provided with mutually associated locking disks (6, 11 -. 17 »19) which have offset through-flow bores (10, 12 -. 18, 20) . 4. Hebe aggregat nach den Ansprüchen 1 bis 5, dadurch gekennzeichnet, daß der untere Zylinder (2) mit einem Außengewinde, und die Verschlußscheibe (6) der Flüssigkeitskammer (4) mit4. Lifting unit according to claims 1 to 5, characterized in that that the lower cylinder (2) with an external thread, and the closure disc (6) of the liquid chamber (4) with ο einem Gewindestutzen (7) ausgestattet ist, der in das'Außenco gewinde des Zylinders (2) schraubbar ist.ο is equipped with a threaded connector (7) that goes into the external co thread of the cylinder (2) can be screwed. cn ,cn, ο 5· Hebe aggregat nach Anspruch 4-, dadurch gekennzeichnet, daß οο 5 · Lifting unit according to claim 4-, characterized in that ο die Verschlußscheibe (6) der Flüssigkeitskammer (4) mit einemthe sealing disc (6) of the liquid chamber (4) with a Ansatz (-8) mit konischer Spitze (9) einstückigist "und im *i Außenbereich eine oder mehrere Durchflußbohruiigen (10) aufwei et«",'"""Approach (-8) with conical tip (9) is in one piece "and in the * i Outside one or more Durchflußbohruiigen (10) aufwei et «", '"" " 6= Hebe aggregat nach den Jnsprüchen 1 bis 5» dadurch gekenn- " zeichnet, daß der Zylinder (1), der die Gaskamiiier (3) und eine ölkammer (4) enthält, mit einem Handhebel (16). zum Verdrehen des Zylinders ausgestattet ist« ( . '■6 = lifting unit according to claims 1 to 5 "characterized in that the cylinder (1), which contains the gas chamber (3) and an oil chamber (4), is equipped with a hand lever (16) for turning the cylinder is « ( . '■ 7. Hebeaggregat nach den Ansprüchen 1 bis 6, dadurch gekennzeichnet, daß das Trennorgan (5) zwischen der Gaskammer (3) und der ölkammer (4·) als elastische, an den Zylinderwandungen abdichtend anliegende Kugel ausgebildet ist. *7. Lifting unit according to claims 1 to 6, characterized in that that the separating member (5) between the gas chamber (3) and the oil chamber (4 ·) as elastic, on the cylinder walls sealing ball is formed. * 8. Hebe aggregat nach Anspruch 75 dadurch gekennzeichnet ^ daß die Kugel (5) aus Gummi oder einem gummiahnlichen Kunststoff gefertigt ist.8. lifting unit according to claim 7 5 characterized ^ that the ball (5) is made of rubber or a rubber-like plastic. 9. Hebe aggregat nach Anspruch 7? dadurch gekennzeichnet, daß die Kugel (5) als Hohlkörper gestaltet ist.9. lifting unit according to claim 7? characterized in that the ball (5) is designed as a hollow body. iO.' Hebeaggregat nach den Ansprüchen 1 bis 6, dadurch gekennzeichnet, daß in einer Flüssigkeitskammer ein mit Gas gefüllter Hohlkörper gelagert ist»OK. ' Lifting unit according to Claims 1 to 6, characterized in that a gas-filled chamber is in a liquid chamber Hollow body is mounted » 9098 85/0009 original inspected9098 85/0009 originally inspected
DE19641429576 1964-11-14 1964-12-23 Hydropneumatic lifting unit, especially for height-adjustable tables and chairs Pending DE1429576A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DEH54327A DE1301026B (en) 1964-11-14 1964-11-14 Hydropneumatic lifting unit, especially for height-adjustable tables and chairs
DEH0054677 1964-12-23
DEH0055001 1965-01-28
DEH0055540 1965-03-23
DEH0055561 1965-03-24

Publications (1)

Publication Number Publication Date
DE1429576A1 true DE1429576A1 (en) 1970-01-29

Family

ID=27512100

Family Applications (5)

Application Number Title Priority Date Filing Date
DEH54327A Pending DE1301026B (en) 1964-11-14 1964-11-14 Hydropneumatic lifting unit, especially for height-adjustable tables and chairs
DE19641429576 Pending DE1429576A1 (en) 1964-11-14 1964-12-23 Hydropneumatic lifting unit, especially for height-adjustable tables and chairs
DE19651554251 Pending DE1554251A1 (en) 1964-11-14 1965-01-28 Hydraulically controlled lifting unit
DE19651554257 Pending DE1554257A1 (en) 1964-11-14 1965-03-23 Hydropneumatic lifting unit, especially for height-adjustable tables and chairs
DE19651554258 Pending DE1554258A1 (en) 1964-11-14 1965-03-24 Hydropneumatic lifting unit, especially for height-adjustable tables and chairs

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DEH54327A Pending DE1301026B (en) 1964-11-14 1964-11-14 Hydropneumatic lifting unit, especially for height-adjustable tables and chairs

Family Applications After (3)

Application Number Title Priority Date Filing Date
DE19651554251 Pending DE1554251A1 (en) 1964-11-14 1965-01-28 Hydraulically controlled lifting unit
DE19651554257 Pending DE1554257A1 (en) 1964-11-14 1965-03-23 Hydropneumatic lifting unit, especially for height-adjustable tables and chairs
DE19651554258 Pending DE1554258A1 (en) 1964-11-14 1965-03-24 Hydropneumatic lifting unit, especially for height-adjustable tables and chairs

Country Status (9)

Country Link
US (1) US3415159A (en)
AT (1) AT277510B (en)
BE (1) BE672104A (en)
CH (1) CH433649A (en)
DE (5) DE1301026B (en)
FR (1) FR1453681A (en)
GB (1) GB1123030A (en)
NL (1) NL6514704A (en)
NO (1) NO136133C (en)

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Also Published As

Publication number Publication date
AT277510B (en) 1969-12-29
DE1554258A1 (en) 1969-05-22
BE672104A (en) 1966-03-01
CH433649A (en) 1967-04-15
GB1123030A (en) 1968-08-07
DE1301026B (en) 1969-08-14
NO136133B (en) 1977-04-18
FR1453681A (en) 1966-09-23
NO136133C (en) 1977-07-27
DE1554257A1 (en) 1970-03-05
US3415159A (en) 1968-12-10
NL6514704A (en) 1966-05-16
DE1554251A1 (en) 1970-03-05

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