EP0657123A1 - Flat-type lifting element - Google Patents

Flat-type lifting element Download PDF

Info

Publication number
EP0657123A1
EP0657123A1 EP94116546A EP94116546A EP0657123A1 EP 0657123 A1 EP0657123 A1 EP 0657123A1 EP 94116546 A EP94116546 A EP 94116546A EP 94116546 A EP94116546 A EP 94116546A EP 0657123 A1 EP0657123 A1 EP 0657123A1
Authority
EP
European Patent Office
Prior art keywords
hollow profile
profile rail
lifting element
element according
flat lifting
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
EP94116546A
Other languages
German (de)
French (fr)
Other versions
EP0657123B1 (en
Inventor
Johannes Schneider
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.)
Dewert Antriebs und Systemtechnik GmbH and Co KG
Original Assignee
Dewert Antriebs und Systemtechnik GmbH and Co KG
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 Dewert Antriebs und Systemtechnik GmbH and Co KG filed Critical Dewert Antriebs und Systemtechnik GmbH and Co KG
Publication of EP0657123A1 publication Critical patent/EP0657123A1/en
Application granted granted Critical
Publication of EP0657123B1 publication Critical patent/EP0657123B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C19/00—Bedsteads
    • A47C19/04—Extensible bedsteads, e.g. with adjustment of length, width, height
    • A47C19/045—Extensible bedsteads, e.g. with adjustment of length, width, height with entire frame height or inclination adjustments
    • 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
    • A47B9/04—Tables with tops of variable height with vertical spindle
    • 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
    • A47B9/20—Telescopic guides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
    • A61G7/018—Control or drive mechanisms
    • 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
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • 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
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • B66F3/10—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated with telescopic sleeves
    • 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
    • B66F3/44—Devices, e.g. jacks, adapted for uninterrupted lifting of loads with self-contained electric driving motors
    • 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
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0035—Tables or desks with features relating to adjustability or folding
    • A47B2200/005—Leg adjustment
    • A47B2200/0051—Telescopic
    • A47B2200/0052—Telescopic with two telescopic parts
    • A47B2200/0053—Flat lifting device for desks with two telescopic sections
    • 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
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0035—Tables or desks with features relating to adjustability or folding
    • A47B2200/005—Leg adjustment
    • A47B2200/0056—Leg adjustment with a motor, e.g. an electric motor
    • 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
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0035—Tables or desks with features relating to adjustability or folding
    • A47B2200/005—Leg adjustment
    • A47B2200/0056—Leg adjustment with a motor, e.g. an electric motor
    • A47B2200/0059—Leg adjustment with a motor, e.g. an electric motor in telescoping table legs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
    • A61G7/012—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame raising or lowering of the whole mattress frame

Definitions

  • the present invention relates to a flat lifting element, which is used in particular for furniture.
  • furniture is, for example, height-adjustable tables, hospital and nursing beds, slatted frames, television armchairs and the like.
  • the previously known actuators are specially designed for the respective purpose.
  • the present invention has for its object to provide a flat lifting element which is structurally simple and compact, but is relatively high load and universally applicable.
  • the object is achieved by an outer and an inner hollow profile rail with a closed cross section and in each case substantially greater width than thickness and by an electromotive actuator, the linearly movable output member is coupled to the outer or inner hollow profile rail.
  • the flat lifting element In the case of the flat lifting element according to the invention, essentially only the two hollow profile rails are required in addition to the electromotive actuator. These are preferably made of light metal, for example aluminum, to reduce weight. Such profiles can be obtained commercially, so that the flat lifting element can be manufactured inexpensively.
  • the flat lifting element is suitable for all installation positions, so that it can be used universally. In addition, it can be optically very well adapted to furniture fronts, for example, since the visible outer surfaces can be coated accordingly or covered with a decorative film.
  • the two hollow profile rails are relatively thin, a correspondingly small installation space is required, which further increases the possible uses.
  • the coupling of the output member of the electromotive actuator to the inner or outer hollow profile rail results in a structurally advantageous solution since at least some of the components of the electromotive actuator can be accommodated inside the inner hollow profile rail. As a result, these components are very well protected. Rectangular profiles are possible as hollow profiles, but the side edges are different. Since the sharp edges interfere with different installation cases, it is provided in a further embodiment that the opposite longitudinal side regions run in an arc, preferably in a semicircle.
  • the cross-section of the outer contour of the inner hollow profile rail matches the inner contour of the outer hollow profile rail, or that the outer contour of the inner hollow profile rail runs at a small and constant distance from the inner contour of the outer profile rail, forming an annular gap.
  • the mutually facing surfaces of the outer and inner hollow profile rails are provided with interlocking profiles that extend in the direction of movement of the extendable hollow profile rail.
  • these profiles can be produced in the simplest way if the profiles are formed from groove-like indentations provided on at least one broad side of the inner hollow profile rail and webs engaging in the indentations, which are attached to the inner side of the outer hollow profile rail that is facing. This also improves the guidance of the two hollow profile rails to one another.
  • the cross sections of the outer and inner hollow profile rails are rectangular, that the thickness of the narrow sides is greater than that of the broad sides and that in each narrow side there is at least one screw-in groove which is open on one side and has a circular cross section. Since the narrow sides are reinforced, there is an additional increase in the stability of the hollow profile rails.
  • the screw-in grooves allow suitable connecting parts or stop parts to be screwed onto the inner and outer hollow profile rail. This version should also not be stressed by sharp edges.
  • the corners of the hollow profile rails are rounded, or they run in a circular arc with a relatively small radius.
  • the outer hollow profile rail is provided on the inside with a plurality of longitudinally extending grooves into which guide rods are inserted, which preferably consist of a plastic.
  • These grooves or guide rods are expediently located in the opposite longitudinal side areas. Since the surfaces contacting the inner profile rail protrude from the inner surface of the outer profile rail, these guide rods can also be seen as spacer rods.
  • the grooves it is also possible for the grooves to be arranged in the inner hollow profile rail and for the guide rods to be firmly inserted therein so that they are carried along in the event that the inner hollow profile rail is moved. The opposite of the outer surface protruding surfaces then contact the inner surface of the outer hollow profile rail.
  • the electromotive actuator is usually provided with an adjusting spindle which can be driven in rotation.
  • This adjusting spindle is expediently protected in the inner hollow profile rail.
  • the motor and possibly the transmission are then in the lower region of the flat lifting element.
  • a flexible drive means is, for example, a generally known flexible shaft.
  • the flat lifting element 10 shown in FIG. 1 essentially consists of an outer hollow profile rail 11, an inner hollow profile rail 12 and an electromotive drive 13.
  • the walls of the two hollow profile rails 11, 12 are cut open to show that the rotationally drivable threaded spindle 14 of the electric motor drive 13 is arranged upright in the inner hollow profile rail 12.
  • the electromotive drive 13 includes a geared motor 16 to drive the threaded spindle 14.
  • the outer hollow profile rail 11 and the inner hollow profile rail 12 are made from an aluminum profile, the outer hollow profile rail 11 enclosing the inner hollow profile rail 12 in a closed manner according to FIG.
  • the widths are in a ratio of approximately 5: 1 to the thicknesses of the two hollow profile rails 11, 12.
  • FIG. 3 it is indicated that the end of the extendable hollow profile rail opposite the electromotive drive 13, in this exemplary embodiment the inner hollow profile rail 12, is provided with a connecting part 18. From the figures it can be seen that the flat lifting element 10 is suitable for all installation positions.
  • the narrow sides are designed as a semicircle.
  • the narrow sides are flat, but the corners run in a radius.
  • the cross sections of the hollow profile rails 11, 12 can be seen as examples, as can the design of the electromotive drive 13.
  • the hollow profile rails 11, 12 are made from extruded extruded profiles.
  • the longitudinal side regions can be formed by 1 tube each with a circular cross section, which are then connected to one another by filling plates.
  • Figure 2 shows that in the arcuate longitudinal side area of the outer hollow profile rail 11 3 grooves are incorporated on the inside, into which plastic guide rods 17 are inserted.
  • the guide rods 17 contact the outer surface of the inner hollow profile rail 12, since the contact surfaces protrude from the inner surface of the outer hollow profile rail 11.
  • This arrangement reduces friction.
  • the outer surface of the inner hollow profile rail 12 runs at a short distance from the inner surface of the outer hollow profile rail 11. From FIG. 2 it is readily apparent that the grooves can also be provided on the outside in the inner hollow profile rail 12, so that the projecting surfaces are the inner surfaces of the Contact the outer hollow profile rail 11.
  • the outer surface of the inner hollow profile rail 12 or the inner surface of the outer hollow profile rail 11 can either be provided or glued in whole or in part with a friction-reducing coating, for example with a film, in a manner not shown.
  • the friction-reducing design can also be produced in a corresponding manner in the exemplary embodiments according to FIGS. 3 to 5.
  • FIG. 3 is intended to show one way in which the stability can be increased and the transverse forces that occur can be better removed.
  • the hollow profile rails 11, 12 are provided with interlocking profiles.
  • FIG. 3 shows that in the case of the rectangular cross section, both the outer hollow profile rail 11 and the inner hollow profile rail 12 can be designed with reinforced narrow side walls. Longitudinal screw-in grooves 21 are arranged in the narrow side walls in order, for example, to fasten the connecting part 18 to the extendable hollow profile rail. The grooves are circular in cross section, but open on the inner sides facing each other.
  • FIG. 3 also shows that a connection part 22 can also be fixed on the lower end face assigned to the electric motor drive.
  • Reference number 23 denotes a connecting cable equipped with a plug.
  • FIG. 5 shows an embodiment in which the outer hollow profile rail 11 is slipped over the inner hollow profile rail 12. So that the outer hollow profile rail 11 can be moved by the threaded spindle 14, a longitudinally extending profile piece 26 in the form of a square tube is firmly inserted in the interior of the hollow profile rail 11. The profile piece 26 is somewhat shorter than the hollow profile rail 11. The end face assigned to the electric motor drive 13 is at a distance from the assigned end of the hollow profile rail 11. The profile piece 26 is firmly connected to the block-like nut 15. By turning the threaded spindle 14, the outer hollow profile rail 11 is displaced with respect to the inner hollow profile rail 12. It should also be mentioned that the hollow profile rails 11, 12 in the exemplary embodiments according to FIGS.
  • the two end positions of the movable hollow profile rails 11 and 12 are specified by limit switches, not shown. These limit switches can be fixed on a perforated rail, so that they can be brought into another position in a simple manner if, for example, the maximum stroke of the hollow profile rail 11 or 12 to be adjusted is not to be used.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Nursing (AREA)
  • Transmission Devices (AREA)
  • Vehicle Body Suspensions (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Tables And Desks Characterized By Structural Shape (AREA)

Abstract

A flat-type lifting element constructed as a furniture drive is to be designed in a structurally simple way so that it is extremely compact, but relatively highly loadable and universally usable. According to the invention, the flat-type lifting element (10) comprises an outer and an inner hollow-section rail (11, 12) with closed cross-section. The width is substantially greater than the thickness. It also includes an electric-motor actuating drive (13), whose linearly movable drive member (15) is coupled to the outer or inner hollow-section rail (11, 12). The mutually facing faces of the outer and inner hollow-section rail (11, 12) can be provided with interlocking profilings extending in the direction of movement of the extendable hollow-section rail (11 or 12). The flat-type lifting element according to the invention is particularly suitable for furniture drives. <IMAGE>

Description

Die vorliegende Erfindung betrifft ein Flachhubelement, welches insbesondere für Möbel verwendet wird. Derartige Möbel sind beispielsweise höhenverstellbare Tische, Kranken- und Pflegebetten, Lattenroste, Fernsehsessel und dergleichen. Die bisher bekannten Stelltriebe sind speziell für den jeweiligen Verwendungszweck ausgelegt.The present invention relates to a flat lifting element, which is used in particular for furniture. Such furniture is, for example, height-adjustable tables, hospital and nursing beds, slatted frames, television armchairs and the like. The previously known actuators are specially designed for the respective purpose.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Flachhubelement zu schaffen, welches konstruktiv einfach und kompakt ist, jedoch relativ hoch belastbar und universell einsetzbar ist.The present invention has for its object to provide a flat lifting element which is structurally simple and compact, but is relatively high load and universally applicable.

Die gestellte Aufgabe wird durch eine äußere und eine innere Hohlprofilschiene mit geschlossenem Querschnitt und jeweils im wesentlichen größerer Breite als Dicke und durch einen elektromotorischen Stelltrieb gelöst, dessen linear bewegliches Abtriebsglied mit der äußeren oder inneren Hohlprofilschiene gekoppelt ist.The object is achieved by an outer and an inner hollow profile rail with a closed cross section and in each case substantially greater width than thickness and by an electromotive actuator, the linearly movable output member is coupled to the outer or inner hollow profile rail.

Bei dem erfindungsgemäßen Flachhubelement werden im wesentlichen zusätzlich zum elektromotorischen Stelltrieb nur noch die beiden Hohlprofilschienen benötigt. Diese sind vorzugsweise zur Gewichtsreduzierung aus Leichtmetall, beispielsweise Aluminium, gefertigt. Derartige Profile können im Handel bezogen werden, so daß das Flachhubelement kostengünstig herstellbar ist. Das Flachhubelement ist für alle Einbaulagen geeignet, so daß es universell einsetzbar ist. Außerdem kann es optisch beispielsweise an Möbelfronten sehr gut angepaßt werden, da die sichtbaren Außenflächen entsprechend beschichtet oder mit einer Dekorfolie beklebt werden können.In the case of the flat lifting element according to the invention, essentially only the two hollow profile rails are required in addition to the electromotive actuator. These are preferably made of light metal, for example aluminum, to reduce weight. Such profiles can be obtained commercially, so that the flat lifting element can be manufactured inexpensively. The flat lifting element is suitable for all installation positions, so that it can be used universally. In addition, it can be optically very well adapted to furniture fronts, for example, since the visible outer surfaces can be coated accordingly or covered with a decorative film.

Da die beiden Hohlprofilschienen relativ dünn sind, wird ein entsprechend geringer Einbauraum benötigt, wodurch die Einsatzmöglichkeiten noch zusätzlich gesteigert werden. Durch die Kopplung des Abtriebsgliedes des elektromotorischen Stelltriebes mit der inneren oder äußeren Hohlprofilschiene ergibt sich eine konstruktiv günstige Lösung, da zumindest ein Teil der Bauteile des elektromotorischen Stelltriebes im Inneren der inneren Hohlprofilschiene untergebracht werden können. Dadurch sind diese Bauteile sehr gut geschützt. Als Hohlprofile kommen Rechteckprofile infrage, wobei jedoch die Seitenkanten unterschiedlich sind. Da für verschiedene Einbaufälle die scharfen Kanten stören, ist in weiterer Ausgestaltung vorgesehen, daß die einander gegenüberliegenden Längsseitenbereiche in einem Bogen, vorzugsweise in einem Halbkreis, verlaufen. Ferner ist vorgesehen, daß querschnittsmäßig die Außenkontur der inneren Hohlprofilschiene mit der Innenkontur der äußeren Hohlprofilschiene übereinstimmt, oder daß die Außenkontur der inneren Hohlprofilschiene unter Bildung eines Ringspaltes in einem geringen und gleichbleibenden Abstand zur Innenkontur der äußeren Profilschiene verläuft.Since the two hollow profile rails are relatively thin, a correspondingly small installation space is required, which further increases the possible uses. The coupling of the output member of the electromotive actuator to the inner or outer hollow profile rail results in a structurally advantageous solution since at least some of the components of the electromotive actuator can be accommodated inside the inner hollow profile rail. As a result, these components are very well protected. Rectangular profiles are possible as hollow profiles, but the side edges are different. Since the sharp edges interfere with different installation cases, it is provided in a further embodiment that the opposite longitudinal side regions run in an arc, preferably in a semicircle. Furthermore, it is provided that the cross-section of the outer contour of the inner hollow profile rail matches the inner contour of the outer hollow profile rail, or that the outer contour of the inner hollow profile rail runs at a small and constant distance from the inner contour of the outer profile rail, forming an annular gap.

Zur Erhöhung der Stabilität der Hohlprofilschienen ist vorgesehen, daß die einander zugewandten Flächen der äußeren und inneren Hohlprofilschiene mit ineinandergreifenden, in Bewegungsrichtung der ausfahrbaren Hohlprofilschiene sich erstreckenden, Profilierungen versehen ist. Außerdem können dann durch die sich kontaktierenden Flächen der Profilierungen Querkräfte in erhöhtem Maße abgetragen werden. Konstruktiv lassen sich diese Profilierungen in einfachster Weise herstellen, wenn die Profilierungen aus zumindest an einer Breitseite der inneren Hohlprofilschiene vorgesehene, nutartige Einziehungen und in die Einziehungen eingreifende, an der zugewandt liegenden Innenseite der äußeren Hohlprofilschiene angesetzten Stegen gebildet sind. Dadurch wird außerdem die Führung der beiden Hohlprofilschienen zueinander verbessert.To increase the stability of the hollow profile rails, it is provided that the mutually facing surfaces of the outer and inner hollow profile rails are provided with interlocking profiles that extend in the direction of movement of the extendable hollow profile rail. In addition, then through the contacting surfaces of the profiles transverse forces are removed to an increased extent. In terms of construction, these profiles can be produced in the simplest way if the profiles are formed from groove-like indentations provided on at least one broad side of the inner hollow profile rail and webs engaging in the indentations, which are attached to the inner side of the outer hollow profile rail that is facing. This also improves the guidance of the two hollow profile rails to one another.

Gemäß einer Ausführungsform ist vorgesehen, daß die Querschnitte der äußeren und inneren Hohlprofilschienen rechteckförmig ausgebildet sind, daß die Dicken der Schmalseiten größer sind als die der Breitseiten und daß in jeder Schmalseite wenigstens eine einseitig offene, im Querschnitt kreisförmige Einschraubnut liegt. Da die Schmalseiten verstärkt sind, ergibt sich noch eine zusätzliche Stabilitätserhöhung der Hohlprofilschienen. Durch die Einschraubnuten lassen sich an der inneren und äußeren Hohlprofilschiene geeignete Verbindungsteile oder Anschlagteile anschrauben. Auch diese Ausführung sollte zweckmäßigerweise nicht durch scharfe Kanten belastet werden. Dazu sind die Ecken der Hohlprofilschienen gerundet, bzw. sie verlaufen in einem Kreisbogen mit einem relativ geringen Radius.According to one embodiment, it is provided that the cross sections of the outer and inner hollow profile rails are rectangular, that the thickness of the narrow sides is greater than that of the broad sides and that in each narrow side there is at least one screw-in groove which is open on one side and has a circular cross section. Since the narrow sides are reinforced, there is an additional increase in the stability of the hollow profile rails. The screw-in grooves allow suitable connecting parts or stop parts to be screwed onto the inner and outer hollow profile rail. This version should also not be stressed by sharp edges. For this purpose, the corners of the hollow profile rails are rounded, or they run in a circular arc with a relatively small radius.

Damit die Reibung beim Verfahren der jeweiligen Profilschiene vermindert wird, ist vorgesehen, daß die äußere Hohlprofilschiene innenseitig mit mehreren in Längsrichtung verlaufenden Nuten versehen ist, in die Führungsstäbe eingesetzt sind, die vorzugsweise aus einem Kunststoff bestehen. Diese Nuten beziehungsweise Führungsstäbe liegen zweckmäßigerweise in den einander gegenüberliegenden Längsseitenbereichen. Da die die innere Profilschiene kontaktierenden Flächen gegenüber der Innenfläche der äußeren Profilschiene vorstehen, können diese Führungsstäbe auch als Distanzstäbe gesehen werden. Es ist jedoch auch möglich, daß die Nuten in der inneren Hohlprofilschiene angeordnet sind und daß die Führungsstäbe darin fest eingesetzt sind, so daß sie für den Fall, daß die innere Hohlprofilschiene verfahren wird, mitgenommen werden. Die gegenüber der Außenfläche vorstehenden Flächen kontaktieren dann die Innenfläche der äußeren Hohlprofilschiene.So that the friction when moving the respective profile rail is reduced, it is provided that the outer hollow profile rail is provided on the inside with a plurality of longitudinally extending grooves into which guide rods are inserted, which preferably consist of a plastic. These grooves or guide rods are expediently located in the opposite longitudinal side areas. Since the surfaces contacting the inner profile rail protrude from the inner surface of the outer profile rail, these guide rods can also be seen as spacer rods. However, it is also possible for the grooves to be arranged in the inner hollow profile rail and for the guide rods to be firmly inserted therein so that they are carried along in the event that the inner hollow profile rail is moved. The opposite of the outer surface protruding surfaces then contact the inner surface of the outer hollow profile rail.

Der elektromotorische Stelltrieb ist üblicherweise mit einer rotierend antreibbaren Stellspindel versehen. Diese Stellspindel liegt zweckmäßigerweise geschützt in der inneren Hohlprofilschiene. Bezogen auf die aufrechte Stellung des Flachhubelementes liegt dann der Motor und gegebenenfalls das Getriebe im unteren Bereich des Flachhubelementes. Für verschiedene Einbaufälle kann es jedoch auch zweckmäßig sein, wenn der Antriebsmotor beziehungsweise der Antriebsgetriebemotor des elektromotorischen Stelltriebes über ein flexibles Antriebsmittel mit der rotierend antreibbaren Stellspindel antriebstechnisch gekoppelt ist. Ein derartiges flexibles Antriebsmittel ist beispielsweise eine allgemein bekannte biegsame Welle.The electromotive actuator is usually provided with an adjusting spindle which can be driven in rotation. This adjusting spindle is expediently protected in the inner hollow profile rail. In relation to the upright position of the flat lifting element, the motor and possibly the transmission are then in the lower region of the flat lifting element. For various installation cases, however, it can also be expedient if the drive motor or the drive gear motor of the electromotive actuating drive is coupled in terms of drive technology to the rotationally drivable adjusting spindle via a flexible drive means. Such a flexible drive means is, for example, a generally known flexible shaft.

Anhand der beiliegenden Zeichnungen wird die Erfindung noch näher erläutert. Es zeigen:

Figur 1
Ein erstes Ausführungsbeispiel eines erfindungsgemäßen Flachhubelementes in perspektivischer Darstellung,
Figur 2
das in der Figur 1 dargestellte Flachhubelement im Querschnitt,
Figur 3
eine zweite Ausführungsform des erfindungsgemäßen Flachhubelementes in perspektivischer Darstellung,
Figur 4
ein drittes Ausführungsbeispiel des erfindungsgemäßen Flachhubelementes in Ansicht und
Figur 5
ein viertes Ausführungsbeispiel des erfindungsgemäßen Flachhubelementes in Ansicht.
The invention is explained in more detail with reference to the accompanying drawings. Show it:
Figure 1
A first embodiment of a flat lifting element according to the invention in a perspective view,
Figure 2
the flat lifting element shown in Figure 1 in cross section,
Figure 3
a second embodiment of the flat lifting element according to the invention in a perspective view,
Figure 4
a third embodiment of the flat lifting element according to the invention in view and
Figure 5
a fourth embodiment of the flat lifting element according to the invention in view.

Das in der Figur 1 dargestellte Flachhubelement 10 besteht im wesentlichen aus einer äußeren Hohlprofilschiene 11, einer inneren Hohlprofilschiene 12 und einem elektromotorischen Antrieb 13. Die Wandungen der beiden Hohlprofilschienen 11, 12 sind aufgeschnitten, um zu zeigen, daß die rotierend antreibbare Gewindespindel 14 des elektromotorischen Antriebes 13 aufrechtstehend in der inneren Hohlprofilschiene 12 angeordnet ist. Auf die Gewindespindel 14 ist eine klotzartige Mutter 15 aufgesetzt, die in nicht näher erläuterter Weise fest mit der inneren Hohlprofilschiene 12 verbunden ist. Der elektromotorische Antrieb 13 beinhaltet einen Getriebemotor 16, um die Gewindespindel 14 anzutreiben. Die äußere Hohlprofilschiene 11 und die innere Hohlprofilschiene 12 sind aus einem Aluminiumprofil gefertigt, wobei gemäß der Figur 1 die äußere Hohlprofilschiene 11 die innere Hohlprofilschiene 12 schließend umgreift. Die beiden Längen der Hohlprofilschienen 11, 12 stimmen in den dargestellten Ausführungsbeispielen überein oder annähernd überein. In der eingefahrenen Stellung fluchten die beiden dem elektromotorischen Antrieb 13 gegenüberliegenden Stirnflächen miteinander. Die Figuren 1 und 3 bis 5 zeigen, daß die Getriebemotoren 16 im Bereich eines Stirnendes des Flachhubelementes 10 angeordnet sind. Im Gegensatz zu den dargestellten Ausführungsbeispielen ist es jedoch in nicht dargestellter Weise ebenso möglich, daß die rotierend antreibbare Gewindespindel 14 mittels einer biegsamen Welle angetrieben wird. Das Getriebe kann dann direkt an den elektrischen Antriebsmotor angeflanscht werden. Die biegsame Welle stellt dann die antriebstechnische Verbindung zur Gewindespindel 14 her. Diese Ausführung hat den Vorteil, daß die biegsame Welle mit relativ geringer Drehzahl angetrieben wird. Würde die biegsame Welle das Antriebsmittel zwischen dem elektromotorischen Antrieb und dem Getriebe bilden, würde sie mit der Abtriebsdrehzahl des Motors angetrieben.The flat lifting element 10 shown in FIG. 1 essentially consists of an outer hollow profile rail 11, an inner hollow profile rail 12 and an electromotive drive 13. The walls of the two hollow profile rails 11, 12 are cut open to show that the rotationally drivable threaded spindle 14 of the electric motor drive 13 is arranged upright in the inner hollow profile rail 12. On the threaded spindle 14, a block-like nut 15 is placed, which is firmly connected to the inner hollow profile rail 12 in a manner not explained in detail. The electromotive drive 13 includes a geared motor 16 to drive the threaded spindle 14. The outer hollow profile rail 11 and the inner hollow profile rail 12 are made from an aluminum profile, the outer hollow profile rail 11 enclosing the inner hollow profile rail 12 in a closed manner according to FIG. The two lengths of the hollow profile rails 11, 12 match or nearly match in the illustrated exemplary embodiments. In the retracted position, the two end faces opposite the electric motor drive 13 are aligned with one another. Figures 1 and 3 to 5 show that the geared motors 16 are arranged in the region of an end face of the flat lifting element 10. In contrast to the exemplary embodiments shown, it is also possible, in a manner not shown, that the rotationally drivable threaded spindle 14 is driven by means of a flexible shaft. The gearbox can then be flanged directly to the electric drive motor. The flexible shaft then establishes the drive connection to the threaded spindle 14. This design has the advantage that the flexible shaft is driven at a relatively low speed. If the flexible shaft were to form the drive means between the electromotive drive and the gearbox, it would be driven at the output speed of the motor.

In den dargestellten Ausführungsbeispielen stehen die Breiten zu den Dicken der beiden Hohlprofilschienen 11, 12 in einem Verhältnis von etwa 5 : 1 zueinander. In der Figur 3 ist angedeutet, daß das dem elektromotorischen Antrieb 13 gegenüberliegende Ende der ausfahrbaren Hohlprofilschiene, in diesem Ausführungsbeispiel die innere Hohlprofilschiene 12, mit einem Anschlußteil 18 versehen wird. Aus den Figuren ergibt sich, daß das Flachhubelement 10 für alle Einbaulagen geeignet ist.In the exemplary embodiments shown, the widths are in a ratio of approximately 5: 1 to the thicknesses of the two hollow profile rails 11, 12. In FIG. 3 it is indicated that the end of the extendable hollow profile rail opposite the electromotive drive 13, in this exemplary embodiment the inner hollow profile rail 12, is provided with a connecting part 18. From the figures it can be seen that the flat lifting element 10 is suitable for all installation positions.

Bei den Ausführungen gemäß den Figuren 1 und 2 sind die Schmalseiten als Halbkreis ausgebildet. Bei den Ausführungen gemäß den Figuren 3 bis 5 sind die Schmalseiten flächig, wobei jedoch die Ecken in einem Radius verlaufen. Die Querschnitte der Hohlprofilschienen 11, 12 sind beispielhaft zu sehen, desgleichen die Ausführung des elektromotorischen Antriebes 13. Die Hohlprofilschienen 11, 12 sind aus gepreßten Strangprofilen gefertigt. Insbesondere bei der Ausführung nach den Figuren 1 und 2 können zur Erhöhung der Stabilität die Längsseitenbereiche durch jeweils 1 Rohr mit kreisförmigem Querschnitt gebildet werden, die dann durch Füllungsplatten miteinander verbunden sind.In the embodiments according to FIGS. 1 and 2, the narrow sides are designed as a semicircle. In the embodiments according to FIGS. 3 to 5, the narrow sides are flat, but the corners run in a radius. The cross sections of the hollow profile rails 11, 12 can be seen as examples, as can the design of the electromotive drive 13. The hollow profile rails 11, 12 are made from extruded extruded profiles. In particular in the embodiment according to FIGS. 1 and 2, to increase the stability, the longitudinal side regions can be formed by 1 tube each with a circular cross section, which are then connected to one another by filling plates.

Die Figur 2 zeigt, daß in dem bogenförmigen Längsseitenbereich der äußeren Hohlprofilschiene 11 innenseitig jeweils 3 Nuten eingearbeitet sind, in die aus Kunststoff bestehende Führungsstäbe 17 eingesetzt sind. Die Führungsstäbe 17 kontaktieren die Außenfläche der inneren Hohlprofilschiene 12, da die Kontaktflächen gegenüber der Innenfläche der äußeren Hohlprofilschiene 11 vorstehen. Durch diese Anordnung wird die Reibung vermindert. Dadurch verläuft die Außenfläche der inneren Hohlprofilschiene 12 in einem geringen Abstand zur Innenfläche der äußeren Hohlprofilschiene 11. Aus der Figur 2 ergibt sich ohne weiteres, daß die Nuten auch außenseitig in der inneren Hohlprofilschiene 12 vorgesehen sein können, so daß die vorstehenden Flächen die Innenflächen der äußeren Hohlprofilschiene 11 kontaktieren. Anstelle der Führungsstäbe 17 kann entweder in nicht dargestellter Weise die Außenfläche der inneren Hohlprofilschiene 12 oder die Innenfläche der äußeren Hohlprofilschiene 11 jeweils ganz oder teilweise mit einem die Reibung vermindernden Belag, beispielsweise mit einer Folie, versehen oder beklebt werden. Die reibungsmindernde Ausführung läßt sich in entsprechender Weise auch bei den Ausführungsbeispielen gemäß den Figuren 3 bis 5 herstellen. Durch die Figur 3 soll eine Möglichkeit aufgezeigt werden, wie die Stabilität erhöht und die auftretenden Querkräfte besser abgetragen werden können. Dazu sind die Hohlprofilschienen 11, 12 mit ineinandergreifenden Profilierungen versehen. Im dargestellten Ausführungsbeispiel sind an einer Längsseitenwand der inneren Hohlprofilschiene 12 drei Einziehungen 19 vorgesehen, die Führungsnuten für Stege 20 bilden, die an der Innenseite der zugeordneten Längsseitenwand der äußeren Hohlprofilschiene 11 lagegerecht angesetzt sind. Ferner zeigt die Figur 3, daß bei dem rechteckförmigen Querschnitt sowohl die äußere Hohlprofilschiene 11 als auch die innere Hohlprofilschiene 12 mit verstärkten Schmalseitenwänden ausgeführt werden kann. In die Schmalseitenwände sind in Längsrichtung verlaufende Einschraubnuten 21 angeordnet, um beispielsweise an der ausfahrbaren Hohlprofilschiene das Anschlußteil 18 zu befestigen. Die Nuten sind im Querschnitt kreisförmig, jedoch an den einander zugewandten, inneren Seiten offen. In der Figur 3 ist auch noch dargestellt, daß an der dem elektromotorischen Antrieb zugeordneten unteren Stirnseite ebenfalls ein Anschlußteil 22 festgelegt werden kann. Durch das Bezugszeichen 23 ist ein mit einem Stecker ausgerüstetes Anschlußkabel bezeichnet.Figure 2 shows that in the arcuate longitudinal side area of the outer hollow profile rail 11 3 grooves are incorporated on the inside, into which plastic guide rods 17 are inserted. The guide rods 17 contact the outer surface of the inner hollow profile rail 12, since the contact surfaces protrude from the inner surface of the outer hollow profile rail 11. This arrangement reduces friction. As a result, the outer surface of the inner hollow profile rail 12 runs at a short distance from the inner surface of the outer hollow profile rail 11. From FIG. 2 it is readily apparent that the grooves can also be provided on the outside in the inner hollow profile rail 12, so that the projecting surfaces are the inner surfaces of the Contact the outer hollow profile rail 11. Instead of the guide rods 17, the outer surface of the inner hollow profile rail 12 or the inner surface of the outer hollow profile rail 11 can either be provided or glued in whole or in part with a friction-reducing coating, for example with a film, in a manner not shown. The friction-reducing design can also be produced in a corresponding manner in the exemplary embodiments according to FIGS. 3 to 5. FIG. 3 is intended to show one way in which the stability can be increased and the transverse forces that occur can be better removed. For this purpose, the hollow profile rails 11, 12 are provided with interlocking profiles. In the illustrated embodiment are three recesses 19 are provided on a longitudinal side wall of the inner hollow profile rail 12, which form guide grooves for webs 20, which are positioned correctly on the inside of the associated longitudinal side wall of the outer hollow profile rail 11. Furthermore, FIG. 3 shows that in the case of the rectangular cross section, both the outer hollow profile rail 11 and the inner hollow profile rail 12 can be designed with reinforced narrow side walls. Longitudinal screw-in grooves 21 are arranged in the narrow side walls in order, for example, to fasten the connecting part 18 to the extendable hollow profile rail. The grooves are circular in cross section, but open on the inner sides facing each other. FIG. 3 also shows that a connection part 22 can also be fixed on the lower end face assigned to the electric motor drive. Reference number 23 denotes a connecting cable equipped with a plug.

In den Figuren 4 und 5 ist angedeutet, daß das Flachhubelement 10 auf einem aus einem Rechteckprofil gebildeten Holm 24 eines nicht dargestellten Möbels aufgestellt ist. Bei der Ausführung nach der Figur 4 liegt der elektromotorische Antrieb 13 innerhalb der äußeren Hohlprofilschiene 11, während er bei der Ausführung nach der Figur 5 in dem Holm 24 liegt. Bei der Ausführung nach der Figur 4 wird auch die innere Hohlprofilschiene 12 gegenüber der äußeren Hohlprofilschiene 11 verfahren. Aus Gründen der vereinfachten Darstellung ist die Gewindespindel 14 nicht dargestellt. Durch diese Ausführung soll gezeigt werden, daß in wenigstens einer Längsseitenwand der äußeren Hohlprofilschiene 12 sich in Längsrichtung beziehungsweise in Bewegungsrichtung der inneren Hohlprofilschiene 12 erstreckende Langlöcher 25 vorgesehen sind. Dadurch können an der verfahrbaren inneren Hohlprofilschiene 12 Bauteile befestigt werden, die dann der Bewegung der inneren Hohlprofilschiene 12 folgen.In Figures 4 and 5 it is indicated that the flat lifting element 10 is placed on a spar 24 formed from a rectangular profile of a piece of furniture, not shown. In the embodiment according to FIG. 4, the electromotive drive 13 lies within the outer hollow profile rail 11, while in the embodiment according to FIG. 5 it lies in the spar 24. In the embodiment according to FIG. 4, the inner hollow profile rail 12 is also moved relative to the outer hollow profile rail 11. For the sake of the simplified illustration, the threaded spindle 14 is not shown. This embodiment is intended to show that elongated holes 25 extending in the longitudinal direction or in the direction of movement of the inner hollow profile rail 12 are provided in at least one longitudinal side wall of the outer hollow profile rail 12. As a result, components can be attached to the movable inner hollow profile rail 12, which then follow the movement of the inner hollow profile rail 12.

In der Figur 5 ist ein Ausführungsbeispiel dargestellt, bei dem die äußere Hohlprofilschiene 11 über die innere Hohlprofilschiene 12 gestülpt ist. Damit die äußere Hohlprofilschiene 11 durch die Gewindespindel 14 verfahren werden kann, ist im inneren der Hohlprofilschiene 11 ein sich in Längsrichtung erstreckendes Profilstück 26 in Form eines Vierkantrohres fest eingesetzt. Das Profilstück 26 ist etwas kürzer als die Hohlprofilschiene 11. Das dem elektromotorischen Antrieb 13 zugeordnete Stirnende steht in einem Abstand zum zugeordneten Ende der Hohlprofilschiene 11. Das Profilstück 26 ist mit der klotzartigen Mutter 15 fest verbunden. Durch Drehung der Gewindespindel 14 verschiebt sich die äußere Hohlprofilschiene 11 gegenüber der inneren Hohlprofilschiene 12. Es sei noch erwähnt, daß die Hohlprofilschienen 11, 12 bei den Ausführungsbeispielen gemäß den Figuren 1, 4 und 5 entsprechend der Ausführung nach der Figur 3 mit Profilierungen versehen sein können. Die beiden Endstellungen der verfahrbaren Hohlprofilschienen 11 bzw. 12 werden durch nicht dargestellte Endschalter vorgegeben. Diese Endschalter können an einer Lochschiene festgelegt werden, so daß sie in einfacher Weise in eine andere Position gebracht werden können, wenn beispielsweise der maximale Hub der zu verstellenden Hohlprofilschiene 11 bzw. 12 nicht ausgenutzt werden soll.FIG. 5 shows an embodiment in which the outer hollow profile rail 11 is slipped over the inner hollow profile rail 12. So that the outer hollow profile rail 11 can be moved by the threaded spindle 14, a longitudinally extending profile piece 26 in the form of a square tube is firmly inserted in the interior of the hollow profile rail 11. The profile piece 26 is somewhat shorter than the hollow profile rail 11. The end face assigned to the electric motor drive 13 is at a distance from the assigned end of the hollow profile rail 11. The profile piece 26 is firmly connected to the block-like nut 15. By turning the threaded spindle 14, the outer hollow profile rail 11 is displaced with respect to the inner hollow profile rail 12. It should also be mentioned that the hollow profile rails 11, 12 in the exemplary embodiments according to FIGS. 1, 4 and 5 are provided with profiles in accordance with the embodiment according to FIG can. The two end positions of the movable hollow profile rails 11 and 12 are specified by limit switches, not shown. These limit switches can be fixed on a perforated rail, so that they can be brought into another position in a simple manner if, for example, the maximum stroke of the hollow profile rail 11 or 12 to be adjusted is not to be used.

Claims (16)

Flachhubelement, insbesondere für Möbel, gekennzeichnet durch eine äußere und eine innere Hohlprofilschiene (11, 12) mit geschlossenem Querschnitt und jeweils wesentlich größerer Breite als Dicke und durch einen elektromotorischen Stelltrieb (13), dessen linear bewegliches Abtriebsglied (15) mit der äußeren oder inneren Hohlprofilschiene (11, 12) gekoppelt ist.Flat lifting element, in particular for furniture, characterized by an outer and an inner hollow profile rail (11, 12) with a closed cross section and in each case much greater width than thickness and by an electromotive actuator (13), whose linearly movable output member (15) with the outer or inner Hollow profile rail (11, 12) is coupled. Flachhubelement nach Anspruch 1, dadurch gekennzeichnet, daß die einander gegenüberliegenden äußeren Längsseitenbereiche der beiden Hohlprofilschienen (11, 12) in einem Bogen, vorzugsweise in einem Halbkreis, verlaufen.Flat lifting element according to claim 1, characterized in that the opposing outer longitudinal side regions of the two hollow profile rails (11, 12) run in an arc, preferably in a semicircle. Flachhubelement nach Anspruch 2, dadurch gekennzeichnet, daß die Längsseitenbereiche durch Rohre mit kreisförmigem Querschnitt gebildet sind, die durch Flachstücke miteinander verbunden sind.Flat lifting element according to claim 2, characterized in that the longitudinal side areas are formed by tubes with a circular cross section, which are connected to one another by flat pieces. Flachhubelement nach Anspruch 1, dadurch gekennzeichnet, daß die einander zugewandten Flächen der äußeren und inneren Hohlprofilschiene (11, 12) mit ineinandergreifenden, in Bewegungsrichtung der ausfahrbaren Hohlprofilschiene (11) beziehungsweise (12) sich erstreckenden Profilierungen versehen sind.Flat lifting element according to claim 1, characterized in that the mutually facing surfaces of the outer and inner hollow profile rail (11, 12) with interlocking, in the direction of movement of the extendable hollow profile rail (11) or (12) extending profiles are provided. Flachhubelement nach Anspruch 4, dadurch gekennzeichnet, daß die Profilierungen aus zumindest an einer Breitseite der inneren Hohlprofilschiene (12) vorgesehenen, nutartigen Einziehungen (19) und in die Einziehungen (19) eingreifende, an der zugewandt liegenden Innenseite der äußeren Hohlprofilschiene (11) angesetzten Stegen (20) gebildet sind.Flat lifting element according to claim 4, characterized in that the profiles are made of groove-like indentations (19) provided on at least one broad side of the inner hollow profile rail (12) and engaging in the indentations (19) on the inner side of the outer hollow profile rail (11) which faces the interior Webs (20) are formed. Flachhubelement nach einem oder mehreren der vorhergehenden Ansprüche 1, 4 oder 5, dadurch gekennzeichnet, daß die Querschnitte der äußeren und inneren Hohlprofilschienen (11, 12) rechteckförmig ausgebildet sind, daß die Dicken der Schmalseiten größer sind als die der Breitseiten, daß in jeder Schmalseite wenigstens eine einseitig offene, im Querschnitt kreisförmige Einschraubnut (21) liegt.Flat lifting element according to one or more of the preceding claims 1, 4 or 5, characterized in that the cross sections of the outer and inner hollow profile rails (11, 12) are rectangular, that the thicknesses of the narrow sides are greater than that of the broad sides, that in each narrow side there is at least one screw-in groove (21) open on one side and circular in cross section. Flachhubelement nach einem oder mehreren der vorhergehenden Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Breiten zu den Dicken der beiden Hohlprofilschienen (11, 12) in einem Verhältnis von cirka 5:1 zueinander stehen.Flat lifting element according to one or more of the preceding claims 1 to 6, characterized in that the widths are in a ratio of approximately 5: 1 to the thicknesses of the two hollow profile rails (11, 12). Flachhubelement nach Anspruch 1, dadurch gekennzeichnet, daß innenseitig in die äußere Hohlprofilschiene (11) in Längsrichtung verlaufende Nuten vorgesehen sind, in die Führungsstäbe (17) fest eingesetzt sind, deren die Außenfläche der inneren Hohlprofilschiene (12) kontaktierende Flächen gegenüber der Innenfläche der äußeren Hohlprofilschiene (11) vorstehen.Flat lifting element according to claim 1, characterized in that longitudinally extending grooves are provided on the inside in the outer hollow profile rail (11), in which guide rods (17) are firmly inserted, the surfaces of which contact the outer surface of the inner hollow profile rail (12) with respect to the inner surface of the outer Protect the hollow profile rail (11). Flachhubelement nach Anspruch 1, dadurch gekennzeichnet, daß außenseitig in der inneren Hohlprofilschiene (12) in Längsrichtung verlaufende Nuten vorgesehen sind, in die Führungsstäbe (17) fest eingesetzt sind, deren die Innenfläche der äußeren Hohlprofilschiene (11) kontaktierende Flächen gegenüber der Außenfläche der inneren Hohlprofilschiene (12) vorstehen.Flat lifting element according to claim 1, characterized in that longitudinally extending grooves are provided on the outside in the inner hollow profile rail (12), into which guide rods (17) are firmly inserted, the surfaces of which contact the inner surface of the outer hollow profile rail (11) with respect to the outer surface of the inner one Protect the hollow profile rail (12). Flachhubelement nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß die Führungsstäbe (17) in den beiden einander gegenüberliegenden äußeren Längsseitenbereichen vorgesehen sind.Flat lifting element according to claim 8 or 9, characterized in that the guide rods (17) are provided in the two opposite outer longitudinal side regions. Flachhubelement nach Anspruch 1, bei dem die innere Hohlprofilschiene (12) mit dem Abtriebsglied (15) des elektromotorischen Antriebes (13) gekoppelt ist, dadurch gekennzeichnet, daß in wenigstens einer Wandung der äußeren Hohlprofilschiene (11) mindestens ein sich in Bewegungsrichtung der inneren Hohlprofilschiene (12) erstreckendes Langloch (25) vorgesehen ist.Flat lifting element according to claim 1, in which the inner hollow profile rail (12) is coupled to the output member (15) of the electromotive drive (13), characterized in that in at least one wall of the outer hollow profile rail (11) at least one in the direction of movement of the inner hollow profile rail (12) extending slot (25) is provided. Flachhubelement nach Anspruch 1, bei dem das Abtriebsglied des elektromotorischen Stelltriebes mit der äußeren Hohlprofilschiene gekoppelt ist, dadurch gekennzeichnet, daß in der äußeren Hohlprofilschiene (11) ein die Gewindespindel (14) des elektromotorischen Antriebes (13) übergreifendes Profilstück (26) festgelegt ist, welches mit dem linear beweglichen Abtriebsglied (15) fest verbunden ist.Flat lifting element according to Claim 1, in which the output member of the electromotive actuator is coupled to the outer hollow profile rail, characterized in that a profile piece (26) which overlaps the threaded spindle (14) of the electromotive drive (13) is fixed in the outer hollow profile rail (11), which is firmly connected to the linearly movable output member (15). Flachhubelement nach einem oder mehreren der vorhergehenden Ansprüche 1 bis 12, dadurch gekennzeichnet, daß die äußere Hohlprofilschiene (11) und die innere Hohlprofilschiene (12) aus einem Leichtmetall, vorzugsweise aus Aluminium, und die Führungsstäbe (17) aus einem Kunststoff bestehen.Flat lifting element according to one or more of the preceding claims 1 to 12, characterized in that the outer hollow profile rail (11) and the inner hollow profile rail (12) consist of a light metal, preferably aluminum, and the guide rods (17) consist of a plastic. Flachhubelement nach einem oder mehreren der vorhergehenden Ansprüche 1 bis 13, dadurch gekennzeichnet, daß der elektromotorische Stelltrieb (13) eine rotierend antreibbare Gewindelspindel (14) beinhaltet und daß das Abtriebsglied eine an der äußeren oder inneren Hohlprofilschiene (11, 12) festgelegte Mutter (15) ist.Flat lifting element according to one or more of the preceding claims 1 to 13, characterized in that the electromotive actuating drive (13) contains a threaded spindle (14) which can be driven in rotation, and in that the driven member has a nut (15) fixed to the outer or inner hollow profile rail (11, 12) ) is. Flachhubelement nach einem oder mehreren der vorhergehenden Ansprüche 1 bis 14, dadurch gekennzeichnet, daß die Außenfläche der inneren Hohlprofilschiene (12) oder die Innenfläche der äußeren Hohlprofilschiene (11) jeweils ganz oder teilweise mit einem die Reibung vermindernden Belag versehen sind.Flat lifting element according to one or more of the preceding claims 1 to 14, characterized in that the outer surface of the inner hollow profile rail (12) or the inner surface of the outer hollow profile rail (11) in each case fully or partially provided with a friction-reducing coating. Flachhubelement nach einem oder mehreren der vorhergehenden Ansprüche 1 bis 15, dadurch gekennzeichnet, daß die Gewindespindel (14) des elektromotorischen Antriebes (13) mit dem Getriebemotor (16) oder dem Antriebsmotor über ein flexibles Antriebsmittel, vorzugsweise eine biegsame Welle antriebstechnisch gekoppelt ist.Flat lifting element according to one or more of the preceding claims 1 to 15, characterized in that the threaded spindle (14) of the electromotive drive (13) is coupled to the geared motor (16) or the drive motor via a flexible drive means, preferably a flexible shaft.
EP94116546A 1993-12-06 1994-10-20 Flat-type lifting element Expired - Lifetime EP0657123B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE9318553U 1993-12-06
DE9318553U DE9318553U1 (en) 1993-12-06 1993-12-06 Flat lifting element
DE9415930U DE9415930U1 (en) 1993-12-06 1994-10-04 Flat lifting element
DE9415930U 1994-10-04

Publications (2)

Publication Number Publication Date
EP0657123A1 true EP0657123A1 (en) 1995-06-14
EP0657123B1 EP0657123B1 (en) 1998-03-04

Family

ID=25961482

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94116546A Expired - Lifetime EP0657123B1 (en) 1993-12-06 1994-10-20 Flat-type lifting element

Country Status (8)

Country Link
US (1) US5626328A (en)
EP (1) EP0657123B1 (en)
JP (1) JPH07308226A (en)
AT (1) ATE163511T1 (en)
CA (1) CA2137317A1 (en)
DE (3) DE9318553U1 (en)
DK (1) DK0657123T3 (en)
ES (1) ES2113028T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29519456U1 (en) * 1995-12-08 1996-03-07 Littec G. Litterst GmbH Technische Vertretungen, 79576 Weil am Rhein Lifting column
ES2127130A1 (en) * 1996-05-06 1999-04-01 Dewert Antriebs Systemtech Electric motor drive for furniture e.g. for adjustable hospital beds and chairs, rotatable or movable components, liquid resistant two-part sealing cover which encloses upper part of housing contg. the openings
CN109008346A (en) * 2018-07-31 2018-12-18 万志平 A kind of intelligentized Furniture pedestal

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29702545U1 (en) * 1997-02-14 1997-03-27 RK Rose + Krieger GmbH & Co. KG Verbindungs- und Positioniersysteme, 32423 Minden Worktable
DE29923059U1 (en) * 1999-11-11 2000-05-25 Dewert Antriebs Systemtech Electromotive adjustment arrangement
KR100490917B1 (en) * 2002-11-29 2005-05-19 이방수 hand dryer
KR100806540B1 (en) * 2007-02-09 2008-02-25 코리아판서시스템(주) A hight and low control type stand for multimedia lecture table
DE102009015690A1 (en) 2009-03-31 2010-10-07 Logicdata Electronic & Software Entwicklungs Gmbh Linear drive and table with linear drive
JP1559697S (en) * 2015-10-19 2016-09-26
USD815477S1 (en) * 2016-06-27 2018-04-17 Unifor S.P.A. Height adjustable table leg
US10334948B2 (en) * 2017-05-14 2019-07-02 Loctek Inc. Electric shelf
CN106974446A (en) * 2017-05-14 2017-07-25 乐歌人体工学科技股份有限公司 Electronic rack
US10758039B2 (en) * 2018-06-11 2020-09-01 Workrite Ergonomics, Inc. Platform with adjustable height
DE202018103610U1 (en) * 2018-06-26 2019-09-27 Grass Gmbh Linear actuator, furniture part or household appliance part and furniture or household appliance
KR102072766B1 (en) * 2018-07-20 2020-02-03 오승훈 Screw jack
JP7326665B2 (en) * 2019-10-29 2023-08-16 株式会社イトーキ Partition device and furniture

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2368748A (en) * 1943-02-19 1945-02-06 Hard Mfg Company Over-bed table
DE2301305A1 (en) * 1972-01-11 1973-07-19 Hansrudolf Zollinger TABLE
EP0551639A1 (en) * 1992-01-16 1993-07-21 Walter Waibel Leg for office-, laboratory- or worktable
EP0561136A1 (en) * 1992-03-17 1993-09-22 Walter Waibel Adjusting device for a leight-adjustable table

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2683341A (en) * 1952-10-22 1954-07-13 Joseph W Kock Lathe grinder
US3022043A (en) * 1960-09-16 1962-02-20 Dewey S Weiss Quick action jack
US3210846A (en) * 1962-01-26 1965-10-12 Burton E Balkin Dental table
US3537762A (en) * 1967-05-26 1970-11-03 Alois Lodige Guide system with precision adjustment for telescopic components
US4206910A (en) * 1978-06-28 1980-06-10 Biesemeyer William M Table saw fence system
JPS5833162A (en) * 1981-08-21 1983-02-26 Eiken Kagaku Kk Oestriol-16alpha-glucuronide assaying antigen and preparation thereof
JPS61291217A (en) * 1985-06-18 1986-12-22 Nissan Motor Co Ltd Evaporated-fuel effluence preventing apparatus for fuel tank for vehicle
US5064318A (en) * 1988-02-19 1991-11-12 Excellon Automation Precision guidance apparatus
GB8808279D0 (en) * 1988-04-08 1988-05-11 Lk Tool Co Ltd Linear guiding apparatus
JPH0710095Y2 (en) * 1990-06-29 1995-03-08 日本トムソン株式会社 Anti-vibration linear motion rolling guide unit
DE4106610A1 (en) * 1991-03-01 1992-09-03 Waibel Walter HEIGHT-ADJUSTABLE TABLE WITH A LINEAR OR STRAIGHT GUIDE
US5365862A (en) * 1992-12-09 1994-11-22 Joerns Healthcare Inc. Table height adjusting mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2368748A (en) * 1943-02-19 1945-02-06 Hard Mfg Company Over-bed table
DE2301305A1 (en) * 1972-01-11 1973-07-19 Hansrudolf Zollinger TABLE
EP0551639A1 (en) * 1992-01-16 1993-07-21 Walter Waibel Leg for office-, laboratory- or worktable
EP0561136A1 (en) * 1992-03-17 1993-09-22 Walter Waibel Adjusting device for a leight-adjustable table

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29519456U1 (en) * 1995-12-08 1996-03-07 Littec G. Litterst GmbH Technische Vertretungen, 79576 Weil am Rhein Lifting column
ES2127130A1 (en) * 1996-05-06 1999-04-01 Dewert Antriebs Systemtech Electric motor drive for furniture e.g. for adjustable hospital beds and chairs, rotatable or movable components, liquid resistant two-part sealing cover which encloses upper part of housing contg. the openings
CN109008346A (en) * 2018-07-31 2018-12-18 万志平 A kind of intelligentized Furniture pedestal

Also Published As

Publication number Publication date
EP0657123B1 (en) 1998-03-04
DK0657123T3 (en) 1998-09-28
ATE163511T1 (en) 1998-03-15
CA2137317A1 (en) 1995-06-07
DE59405375D1 (en) 1998-04-09
ES2113028T3 (en) 1998-04-16
US5626328A (en) 1997-05-06
DE9415930U1 (en) 1995-01-19
JPH07308226A (en) 1995-11-28
DE9318553U1 (en) 1994-02-03

Similar Documents

Publication Publication Date Title
DE69000601T2 (en) ROLLER LOCKING DEVICE IN WHICH THE DRIVE MECHANISM IS IN THE ROLE.
EP0657123B1 (en) Flat-type lifting element
EP3245904B1 (en) Electromotive furniture drive
EP3405699A1 (en) Actuator with a rigid-spined chain
EP2372172A1 (en) Device with at least two parts that can be moved relative to each other
WO2002007291A1 (en) Secondary part of a linear motor and method for producing the same
DE2115744A1 (en) Edge gear as a connecting rod fitting for windows, doors or the like
EP1108906B1 (en) Linear guiding device
DE9219075U1 (en) Actuating gear for fittings on windows, doors or the like.
AT15365U1 (en) glazing system
EP1288123B1 (en) Covering element for the interior of a vehicle, especially the interior of an aircraft
EP0104340A2 (en) Arrangement, in particular for a shower partition wall
EP0304830B1 (en) Frame composed of structural members of wood, plastics or compound materials
EP3859107A1 (en) Sliding door
EP0211188A1 (en) Covering device
DE3145375C2 (en) Multi-part frame profile
EP0654574B1 (en) Corner guide for spindle and sliding bar
EP0651121A1 (en) Length adjustable bolt device
DE2654590C2 (en) Frame for electrical switchgear
DE2800231C3 (en) Composite profile bar of a frame for windows, doors and the like.
CH686585A5 (en) Profiled bar forming guide or connector for construction etc.
DE2343933A1 (en) Window actuator housing and bearing rosette - spacing sleeve with adjusting slots
DE2832774A1 (en) SLIDE VENTILATION
DE1605999C3 (en) Window guide for sliding windows that can be lowered into the window shaft of a vehicle, in particular a passenger vehicle
EP3929466A1 (en) Linear drive

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB IT LI NL

17P Request for examination filed

Effective date: 19950930

17Q First examination report despatched

Effective date: 19970116

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

ITF It: translation for a ep patent filed

Owner name: STUDIO INGG. FISCHETTI & WEBER

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB IT LI NL

REF Corresponds to:

Ref document number: 163511

Country of ref document: AT

Date of ref document: 19980315

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: ISLER & PEDRAZZINI AG

Ref country code: CH

Ref legal event code: EP

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19980311

REF Corresponds to:

Ref document number: 59405375

Country of ref document: DE

Date of ref document: 19980409

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2113028

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20031020

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20031024

Year of fee payment: 10

Ref country code: AT

Payment date: 20031024

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20031029

Year of fee payment: 10

Ref country code: DK

Payment date: 20031029

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041020

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041021

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041101

BERE Be: lapsed

Owner name: *DEWERT ANTRIEBS- UND SYSTEMTECHNIK G.M.B.H. & CO.

Effective date: 20041031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050501

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20050501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051020

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20041021

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: ISLER & PEDRAZZINI AG;POSTFACH 1772;8027 ZUERICH (CH)

BERE Be: lapsed

Owner name: *DEWERT ANTRIEBS- UND SYSTEMTECHNIK G.M.B.H. & CO.

Effective date: 20041031

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20121017

Year of fee payment: 19

Ref country code: FR

Payment date: 20121113

Year of fee payment: 19

Ref country code: CH

Payment date: 20121024

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20121023

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59405375

Country of ref document: DE

Representative=s name: PATENT- UND RECHTSANWAELTE LOESENBECK, SPECHT,, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59405375

Country of ref document: DE

Representative=s name: PATENT- UND RECHTSANWAELTE LOESENBECK, SPECHT,, DE

Effective date: 20131004

Ref country code: DE

Ref legal event code: R081

Ref document number: 59405375

Country of ref document: DE

Owner name: DEWERTOKIN GMBH, DE

Free format text: FORMER OWNER: DEWERT ANTRIEBS- UND SYSTEMTECHNIK GMBH & CO KG, 32278 KIRCHLENGERN, DE

Effective date: 20131004

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20131020

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59405375

Country of ref document: DE

Effective date: 20140501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131031

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131020

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131031

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131031

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140501