EP1350444B1 - Bottom-slide for extensible furniture - Google Patents

Bottom-slide for extensible furniture Download PDF

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Publication number
EP1350444B1
EP1350444B1 EP03003798A EP03003798A EP1350444B1 EP 1350444 B1 EP1350444 B1 EP 1350444B1 EP 03003798 A EP03003798 A EP 03003798A EP 03003798 A EP03003798 A EP 03003798A EP 1350444 B1 EP1350444 B1 EP 1350444B1
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EP
European Patent Office
Prior art keywords
rail
pull
centre
rollers
carcass
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP03003798A
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German (de)
French (fr)
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EP1350444A1 (en
Inventor
Josef Tschemernjak
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Fulterer GmbH
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Fulterer GmbH
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Publication of EP1350444A1 publication Critical patent/EP1350444A1/en
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40Sliding drawers; Slides or guides therefor
    • A47B88/49Sliding drawers; Slides or guides therefor with double extensible guides or parts
    • A47B88/493Sliding drawers; Slides or guides therefor with double extensible guides or parts with rollers, ball bearings, wheels, or the like

Definitions

  • the invention relates to a Unterêtauszieh arrangement for pull-out furniture parts, especially drawers and drawers, fastened to the furniture body carcass rail, attachable to the underside of the extendable furniture part pull-out rail and between the carcass rail and the pull-out rail and between these differentially running center rail on both sides of the extendable Furniture part, being provided to allow the mutual displacement of the rails rollers.
  • roller pull-out guides are known in which the rollers are rotatably mounted on the rails by means of axles attached to the rails.
  • roller extension guides usually have relatively large heights and are usually used mainly for to be arranged on the side walls of the pull-out furniture parts pull-out, especially if it is a full extension.
  • Roller full extension with different running medium rail have become known in different embodiments.
  • the CH 679 735 A5 shows a fastened to the side walls of the extendable furniture part differential extract, in which all rollers are arranged on the center rail. In the region of its front end, a front roller is rotatably mounted on the center rail, which projects beyond the center rail downwards.
  • a rear roller In the area of its rear end, a rear roller is rotatably mounted, which projects beyond the middle rail upwards.
  • upper and lower middle rollers are rotatably mounted, of which the lower roller is designed as a play with respect to its axis rotatably mounted differential role.
  • the carcass rail is U-shaped and surrounds the middle rail.
  • the pull-out rail has a horizontal land having a downwardly-directed track for engagement with the front roller and the lower middle track roller of the center rail and an upwardly-directed track for engagement with the upper center track roller of the center rail.
  • the differential extract shown in CH 679 735 A5 has a relatively large height and the differential extension is only slightly stable compared to laterally acting forces.
  • a Unterêtauszieh operation in the form of a full extension with arranged between the rails in cages roller-shaped rolling elements is known from DE 296 16 756 U1.
  • the cages also extend into the areas between the vertical flanges of the adjacent guide rails and have between these vertical flanges rolling about vertical axes rotatable rollers. It is a telescopic extension without differential movement of the middle rail.
  • a guide for extendable furniture parts in the form of a single extension is known from EP 0 196 412 A1.
  • rolling elements are provided, whose axes are aligned perpendicular to each other and which are alternately supported on two opposite of the four running surfaces of the rails.
  • the treads are each offset by 90 ° from each other and have angles of 45 ° to the vertical or horizontal.
  • pull-out guide in the form of a single extension with rolling elements arranged in cages is known from EP 1 066 773 A1. From this document goes u.a. an embodiment (as shown in FIG. 9), in which the pull-out rail has two mutually facing downwardly facing raceways and an upwardly directed track and the carcass rail has two angularly mutually facing upwardly facing tracks and a downward career.
  • An extension guide of the type mentioned is known from AT 404 222 B. This has next to the middle rail about horizontal axes rotatably mounted rollers, which roll on facing horizontal flanges of the carcass rail and the pull-out rail, also between horizontal flanges of the center rail on the one hand and horizontal flanges of the carcass rail or pull-out rail on the other rolling rollers, which are arranged in roller cages , In addition to rollers rotatable about horizontal axes, these guide cages also have rollers which are rotatable about vertical axes and which roll between mutually opposite vertical flanges on the one hand of the middle rail and on the other hand of the carcass rail or pull-out rail, thereby achieving lateral guidance.
  • This pull-out guide has a relatively complex structure, which also results from the simultaneous use of rotatably mounted on a rail rollers and arranged in cages rolling elements.
  • the object of the invention is to provide a Unterêtauszieh entry of the aforementioned type, which has very good operating characteristics at a low height and in which a good lateral guidance is achievable, this with a simple structure.
  • an underfloor differential extension is provided in the form of a roller pull-out, which makes do without the use of arranged in cages rolling elements and due to the use of rotatably mounted on a rail rollers excellent running characteristics, of which arranged at an angle to the horizontal rollers also lateral forces can be absorbed.
  • An extension guide according to the invention can also be formed in a small height, which may correspond to that of conventional commercially available underbody guides. The lowest heights of common on the market underbody full extensions are about 27 to 28mm, which value can also be achieved in a pull-out according to the invention.
  • all rollers can be rotatably mounted on the center rail, which leads to a rational production of a pull-out guide according to the invention, in particular in connection with a design of the rails of a pull-out guide according to the invention in the form of folded sheets.
  • the Unterêtauszieh entry according to the invention according to the embodiment shown in FIGS. 1 to 6 has a pull-out rail 10, a carcass rail 20 and a middle rail 30 which is partially surrounded by the pull-out rail 10.
  • the drawer rail 10 has a horizontally formed in this embodiment lower web 12, a lateral connecting web 15 and an upper web 11, which comprises a horizontal portion and two thereto by 45 ° downwardly bent portions.
  • the middle rail 30 facing surface of the lower web 12 forms an upwardly directed track 14 of the slide rail 10 and the middle rail 30 facing surfaces of the obliquely downwardly angled portions of the upper web 11 form (obliquely) downwardly facing raceways 13, 13 ', thus at embodiment shown include an angle of 90 °.
  • the horizontal portion of the upper web 11 forms a support flange with which the pull-out rail 10 can be fastened to the underside of an extendable furniture part 2 schematically indicated in FIG. 2 (the holes provided for this purpose in the pull-out rail 10 and the screws are not shown in the figures) ).
  • extendable rails are mounted on both sides of middle rails and carcass rails (not shown in the Fig.).
  • the carcass rail 20 is provided with a mounting leg 21 having a fastened to a furniture body 1 vertical portion and a laterally projecting at the lower end of the vertical portion portion to which a triangular-folded leg 22 connects.
  • This has a horizontal web 25 and two inclined webs 26, 27 which are aligned parallel to the obliquely downwardly bent portions of the upper web 11 of the drawer rail 10 and at their upper side surfaces (obliquely) upwardly oriented tracks 23, 23 'form.
  • the lying parallel to the lower web 12 of the drawer rail 10 horizontal web 25 of the triangular folded leg 22 has at its lower side surface a downward career 24.
  • This downwardly oriented track 24 has by bending the horizontal web 25 formed lateral elevations with the downwardly facing raceway 24 in the embodiment shown include an angle of 45 °.
  • the center rail 30 has upper and lower support legs 33, 34 which are interconnected on one side of the center rail.
  • the lower support leg 34 is U-shaped with a horizontal base leg.
  • the upper support leg 33 has a central horizontal portion and U-shaped sections adjoining it on both sides, the base legs 35, 36 of the two U-shaped sections being parallel to the downwardly facing raceways 13, 13 'and the upwardly directed raceways 23, 23 'lost.
  • the middle rail 30 has in the region of its front end 31 two rotatably mounted on their upper support legs 33 front wheels 41, 41 '.
  • the axes 37, 37 'of the front rollers 41, 41' are fixed to the side legs of the two U-shaped portions of the upper support leg 33 and aligned parallel to the downwardly facing raceways 13, 13 'and the upwardly facing raceways 23, 23' ,
  • the front rollers 41, 41 ' cooperate with the downwardly facing raceways 13, 13' of the slide rail 10 and support the slide rail 10 in the extended state of the rails against tipping down from.
  • the middle rail 30 has a rear roller 42 rotatably mounted on its lower support leg 34 about a horizontal axis 39, which cooperates with the downwardly oriented track 24 of the carcass rail 20 and in the extended state of the rails, the rear end 32nd the middle rail is supported on the carcass rail 20 with respect to pivoting upwards.
  • first middle rollers 43, 43 ' are rotatably mounted on the upper support leg 33, whose axes 47, 47' are aligned parallel to the axes 37, 37 'of the front rollers 41, 41'.
  • a second middle roller 44 rotatably supported about a horizontal axis 48.
  • This second middle roller 44 forms in the extended state of the rails an abutment for the upward trajectory 14 of the drawer rail 10 (against a pivoting upward).
  • auxiliary rollers 45, 45 ' With play on their axes 49, 49' rotatably mounted, the axes 49, 49 'parallel to the axes 37, 37' of the front rollers 41, 41 'are aligned.
  • the auxiliary roller 45 ' is in a range between the upper middle roller 43' and the rear end 32 rotatably mounted on the center rail 30 and serves to support against tilting down of the second end 32 facing portion of the slide rail 10 and the center rail 30 in the retracted state or only slightly extended state of the pull-out.
  • the auxiliary roller 45 is rotatably mounted in the region of the second end 32 of the middle rail 30 at this.
  • auxiliary roller 45 in a same region of the longitudinal extension of the central rail 30 as the auxiliary roller 45 ' would be possible.
  • the arrangement in the region of the second end 32 has the advantage of a lesser game with respect to the side guide caused by this auxiliary roller 45 due to the more favorable lever ratios.
  • the rear caster 42 and the second center caster 44 are profiled in accordance with the downwardly facing raceway 24, d. H. they have lateral chamfers 40 for abutment with the lateral elevations of the downwardly directed track 24 of the carcass rail 20.
  • auxiliary rollers 45, 45 'could be provided. Conceivable and possible it would in principle also, instead of the auxiliary roller 45, 45 'shown to arrange at least one auxiliary roller on the lower support leg 34 in the region between the lower middle roller 44 and the front end 31 of the middle rail 30, the tilting of the center rail and the drawer rail in retracted or largely retracted state of the pull-out guide by supporting between the upward career 14 and the downward career 24 prevents, with a side guide function by lateral chamfers on the roller and lateral elevations of the lower track of the carcass rail and possibly also the upward career 14 of the drawer rail 10 could be achieved.
  • the second middle roller 44 could also be mounted with play relative to its axle 48.
  • the first middle rollers 43, 43 'could play on their axes be stored, between the tracks and the rollers then only a very small game should be to the load change when undressing (focus of the extendable furniture moves from the area behind the middle rollers in the area in front of the middle rollers) a tilt-free movement of the guide to reach.
  • the middle rail 30 here consists of a box profile, which is open on one side via a slot 3.
  • the middle rail 30 is thus formed by an upper U-shaped support legs 33 and a lower U-shaped support legs 34 which are on one side (on the opposite side of the slot 3) connected to each other.
  • FIGS. 8 to 13 corresponds to a kinematic reversal of the previously described embodiment, wherein the previous pull-out rail now forms the carcass rail and the previous carcass rail now forms the pull-out rail.
  • the rails have additionally been rotated by 180 ° about an axis extending in the longitudinal direction of the pull-out guide and the mounting flange 21 has been adapted accordingly, as will be described below.
  • Like-acting parts are designated in this second embodiment with the same reference numerals.
  • the carcass rail 20 is formed in this embodiment by the outer, the middle rail 30 partially surrounding rail that corresponds in shape approximately to the 180 ° rotated pull-out rail of the first embodiment.
  • the drawer rail 10 is fastened with its lateral connecting web 15 to a furniture body 1, by means of screws screwed through holes 5 (not shown in FIGS.).
  • the now overhead web 12, on which the downwardly oriented raceway 24 is arranged, is now provided with bends to form lateral elevations of this career, where the bevels 40 of the rear roller 42 abut.
  • the mounting flange 21 of the slide rail 10 has a horizontal portion 28 disposed above the carcass rail 20, for which purpose corresponding bends are provided (which differ from the folds of the mounting flange 21 of the carcass rail 20 of the first embodiment).
  • the upwardly directed track 14 of the carcass rail 20 could also be formed here without the lateral elevations (analogous to the upward-pointing track 14 of the carcass rail 20 of the first embodiment).
  • the middle rail 30 with the rollers mounted on it corresponds in its construction to the middle rail described in connection with the first exemplary embodiment, which has been rotated by 180 ° about its longitudinal axis.

Landscapes

  • Drawers Of Furniture (AREA)
  • Catching Or Destruction (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Ladders (AREA)
  • Details Of Indoor Wiring (AREA)
  • Audible And Visible Signals (AREA)

Abstract

The drawer rail system comprises two rails (20) attached to the carcass, two rails (10) attached to the bottom of the drawer and two intermediate rails (30). Two wheels (41, 41') are mounted at the front end of each intermediate rail whose axes are at equal angles to the horizontal, but in opposite directions, two similar wheels (43, 43') halfway down it and a single upright roller (42) at its back end. A similar roller (44) is mounted halfway down it. The rail attached to the drawer has surfaces bent to cooperate with the front set of sloping and upright wheels while the rail attached to the carcass has similar surfaces which cooperate with the middle wheels.

Description

Die Erfindung betrifft eine Unterbodenausziehführung für ausziehbare Möbelteile, insbesondere Schubläden und Schubkästen, mit einer am Möbelkorpus befestigbaren Korpusschiene, einer an der Unterseite des ausziehbaren Möbelteils befestigbaren Auszugschiene und einer zwischen der Korpusschiene und der Auszugschiene angeordneten und zwischen diesen differentiell laufenden Mittelschiene an beiden Seiten des ausziehbaren Möbelteils, wobei zur Ermöglichung der gegenseitigen Verschiebung der Schienen Laufrollen vorgesehen sind.The invention relates to a Unterbodenausziehführung for pull-out furniture parts, especially drawers and drawers, fastened to the furniture body carcass rail, attachable to the underside of the extendable furniture part pull-out rail and between the carcass rail and the pull-out rail and between these differentially running center rail on both sides of the extendable Furniture part, being provided to allow the mutual displacement of the rails rollers.

Unterbodenausziehführungen haben gegenüber an den Seitenwangen des ausziehbaren Möbelteils angeordneten Ausziehführungen den Vorteil, daß die nutzbare Breite des ausziehbaren Möbelteils nicht verringert wird. Dafür tritt bei Unterbodenausziehführungen das Problem auf, daß ihre Einbauhöhe möglichst gering sein soll. Einerseits können sie dadurch im eingebauten Zustand unsichtbar hinter hierfür vorgesehenen Verblendungen am ausziehbaren Möbelteil angeordnet sein, andererseits wird der erforderliche Abstand von übereinander angeordneten ausziehbaren Möbelteilen, um die Einbauhöhe für die Ausziehführungen bereitzustellen, gering gehalten.Unterbodenausziehführungen have arranged opposite to the side walls of the extendable furniture part pull-out the advantage that the usable width of the pull-out furniture part is not reduced. For this occurs in Unterbodenausziehführungen the problem that their installation height should be as low as possible. On the one hand, they can be arranged in the installed state invisible behind this provided veneers on the extendable furniture part, on the other hand, the required distance from stacked extendable furniture parts to provide the installation height for the pull-out, kept low.

Dieses Problem tritt in besonderem Maß bei Vollauszügen auf, welche eine zwischen der ortsfesten Korpusschiene und der am ausziehbaren Möbelteil befestigten Auszugschiene eine Mittelschiene aufweisen. Um dennoch eine niedrige Bauhöhe der Ausziehführung zu erreichen, werden üblicherweise in ihren Abmessungen relativ kleine, von Käfigen gehaltene Wälzkörper zur verschiebbaren Lagerung der Schienen eingesetzt, welche zwischen einander zugewandten Laufbahnen der Schienen abrollen. Es werden dabei sowohl zylindrische als auch kugelförmige Wälzkörper eingesetzt. Ein solcher Unterflurvollauszug ist beispielsweise aus der DE 39 21 859 A1 bekannt. Bei einem der gezeigten Ausführungsbeispiele sind auch an der Mittelschiene drehbar gelagerte, einerseits an der Korpusschiene andererseits an der Auszugschiene abrollende Synchronrollen vorgesehen, um beim Ausziehen der Auszugschiene auch gleichzeitig die Mittelschiene jeweils um den halben Weg der Auszugschiene zu bewegen. Ohne solche Synchronrollen erfolgt das Ausziehen der Auszugschiene und der Mittelschiene nach Art eines Teleskopauszuges zeitlich nacheinander, was hinsichtlich des Bedienungskomforts nachteilig ist.This problem occurs to a particular extent in full extracts, which have a fixed between the stationary carcass rail and the pull-out furniture part drawer rail a center rail. In order nevertheless to achieve a low overall height of the pull-out guide, relatively small cage-held rolling elements are usually used in their dimensions for displaceable mounting of the rails, which roll between mutually facing raceways of the rails. Both cylindrical and spherical rolling elements are used. Such underfloor full extension is known for example from DE 39 21 859 A1. In one of the embodiments shown also rotatably mounted on the middle rail, on the one hand on the carcass rail on the other hand on the pull-out rail rolling rollers are provided to move the extension rail at the same time the center rail in each case by half way the pull-out rail. Without such synchronized rollers, the pull-out rail and middle rail are removed Type of telescopic extension in succession, which is disadvantageous in terms of ease of use.

Neben solchen wälzgelagerten Ausziehführungen sind sogenannte Rollen-Ausziehführungen bekannt, bei denen die Laufrollen mittels an den Schienen angebrachter Achsen drehbar an diesen gelagert sind. Solche Rollen-Ausziehführungen weisen üblicherweise relativ große Bauhöhen auf und werden normalerweise vor allem für an den Seitenwangen der ausziehbaren Möbelteile anzuordnende Ausziehführungen eingesetzt, insbesondere wenn es sich um einen Vollauszug handelt. Rollen-Vollauszüge mit differentiell ablaufender Mittelschiene sind in unterschiedlichen Ausführungsformen bekannt geworden. Beispielsweise zeigt die CH 679 735 A5 einen an den Seitenwangen des ausziehbaren Möbelteils befestigbaren Differentialauszug, bei dem alle Laufrollen an der Mittelschiene angeordnet sind. Im Bereich ihres vorderen Endes ist an der Mittelschiene eine vordere Laufrolle drehbar gelagert, die über die Mittelschiene nach unten vorragt. Im Bereich ihres hinteren Endes ist eine hintere Laufrolle drehbar gelagert, die über die Mittelschiene nach oben vorragt. In einem mittleren Bereich der Mittelschiene sind obere und untere mittlere Laufrollen drehbar gelagert, von denen die untere Laufrolle als mit Spiel gegenüber ihrer Achse drehbar gelagerte Differentialrolle ausgebildet ist. Die Korpusschiene ist U-förmig ausgebildet und umgibt die Mittelschiene. Die Auszugschiene weist einen horizontalen Steg auf, der eine nach unten gerichtete Laufbahn zum Zusammenwirken mit der vorderen Laufrolle und der unteren mittleren Laufrolle der Mittelschiene sowie eine nach oben gerichtete Laufbahn zum Zusammenwirken mit der oberen mittleren Laufrolle der Mittelschiene aufweist. Der in der CH 679 735 A5 gezeigte Differentialauszug weist eine relativ große Bauhöhe auf und der Differentialauszug ist gegenüber seitlich einwirkenden Kräften nur wenig stabil.In addition to such roller-mounted pull-out guides, so-called roller pull-out guides are known in which the rollers are rotatably mounted on the rails by means of axles attached to the rails. Such roller extension guides usually have relatively large heights and are usually used mainly for to be arranged on the side walls of the pull-out furniture parts pull-out, especially if it is a full extension. Roller full extension with different running medium rail have become known in different embodiments. For example, the CH 679 735 A5 shows a fastened to the side walls of the extendable furniture part differential extract, in which all rollers are arranged on the center rail. In the region of its front end, a front roller is rotatably mounted on the center rail, which projects beyond the center rail downwards. In the area of its rear end, a rear roller is rotatably mounted, which projects beyond the middle rail upwards. In a central region of the middle rail upper and lower middle rollers are rotatably mounted, of which the lower roller is designed as a play with respect to its axis rotatably mounted differential role. The carcass rail is U-shaped and surrounds the middle rail. The pull-out rail has a horizontal land having a downwardly-directed track for engagement with the front roller and the lower middle track roller of the center rail and an upwardly-directed track for engagement with the upper center track roller of the center rail. The differential extract shown in CH 679 735 A5 has a relatively large height and the differential extension is only slightly stable compared to laterally acting forces.

Bei Unterbodenausziehführungen werden weiters im Vergleich zu an den Seitenwangen anzubringenden Ausziehführungen bessere seitliche Führungen gefordert, um ein exaktes Laufverhalten dieser Führungen zu ermöglichen und seitlich einwirkende Kräfte aufzunehmen. Bei kugelgelagerten Ausziehführungen, wie sie beispielsweise aus der bereits genannten DE 39 21 859 A1 bekannt sind, sind sehr kleine Fertigungstoleranzen erforderlich, um die gewünschten Führungseigenschaften in vertikaler und horizontaler Richtung zu erreichen.In Unterbodenausziehführungen better lateral guides are further required in comparison to be mounted on the side cheeks pull-out guides to allow an exact running behavior of these guides and absorb laterally acting forces. In ball-bearing pull-out guides, as they are known for example from the aforementioned DE 39 21 859 A1, very small manufacturing tolerances are required to achieve the desired guiding properties in the vertical and horizontal directions.

Eine Unterbodenausziehführung in Form eines Vollauszuges mit zwischen den Schienen in Käfigen angeordneten rollenförmigen Wälzkörpern ist aus der DE 296 16 756 U1 bekannt. Zur Erzielung der Seitenführung erstrecken sich die Käfige auch in die Bereiche zwischen den Vertikalflanschen der benachbarten Führungsschienen und weisen zwischen diesen Vertikalflanschen abrollende um vertikale Achsen drehbare Laufrollen auf. Es handelt sich hierbei um einen Teleskopauszug ohne differentielle Bewegung der Mittelschiene.A Unterbodenausziehführung in the form of a full extension with arranged between the rails in cages roller-shaped rolling elements is known from DE 296 16 756 U1. To achieve the side guide, the cages also extend into the areas between the vertical flanges of the adjacent guide rails and have between these vertical flanges rolling about vertical axes rotatable rollers. It is a telescopic extension without differential movement of the middle rail.

Aus der DE 44 32 821 A1 ist eine Unterbodenausziehführung nach Art eines Teleskopauszugs ohne eine differentielle Bewegung der Mittelschiene bekannt, bei der die Mittelschiene auf der Korpusschiene kugelgelagert ist. An vertikalen Stegen der Mittelschiene sind beidseitig der Mittelschiene Laufrollen um horizontale Achsen drehbar gelagert, entlang von denen die Auszugschiene abläuft. Weiters sind zur Ausbildung einer Seitenführung zwischen der Mittelschiene und der Auszugschiene an der Mittelschiene um vertikale Achsen drehbar gelagerte Führungsrollen vorgesehen.From DE 44 32 821 A1 a Unterbodenausziehführung in the manner of a telescopic extension without a differential movement of the center rail is known in which the middle rail is ball-mounted on the carcass rail. On vertical webs of the middle rail, the middle rail rollers are rotatably mounted on both sides about horizontal axes, along which the pull-out rail runs off. Furthermore, rotatably mounted guide rollers are provided to form a side guide between the center rail and the slide rail on the center rail about vertical axes.

Eine Führung für ausziehbare Möbelteile in Form eines Einfachauszugs ist aus der EP 0 196 412 A1 bekannt. Zwischen der Korpusschiene und der Auszugschiene sind in einem Käfig angeordnete Wälzkörper vorgesehen, deren Achsen senkrecht zueinander ausgerichtet sind und die sich jeweils abwechselnd an jeweils zwei gegenüberliegenden der insgesamt vier Laufflächen der Schienen abstützen. Die Laufflächen sind jeweils um 90° gegeneinander versetzt und weisen Winkel von 45° zur Vertikalen bzw. Horizontalen auf.A guide for extendable furniture parts in the form of a single extension is known from EP 0 196 412 A1. Between the carcass rail and the pull-out rail arranged in a cage rolling elements are provided, whose axes are aligned perpendicular to each other and which are alternately supported on two opposite of the four running surfaces of the rails. The treads are each offset by 90 ° from each other and have angles of 45 ° to the vertical or horizontal.

Eine weitere Ausziehführung in Form eines Einfachauszugs mit in Käfigen angeordneten Wälzkörpern ist aus der EP 1 066 773 A1 bekannt. Aus dieser Schrift geht u.a. ein Ausführungsbeispiel (gemäß Fig. 9) hervor, bei welchem die Auszugschiene zwei winklig zueinanderstehende nach unten gerichtete Laufbahnen und eine nach oben gerichtete Laufbahn aufweist und die Korpusschiene zwei winklig zueinanderstehende nach oben gerichtete Laufbahnen und eine nach unten gerichtete Laufbahn aufweist.Another pull-out guide in the form of a single extension with rolling elements arranged in cages is known from EP 1 066 773 A1. From this document goes u.a. an embodiment (as shown in FIG. 9), in which the pull-out rail has two mutually facing downwardly facing raceways and an upwardly directed track and the carcass rail has two angularly mutually facing upwardly facing tracks and a downward career.

Aus der DE 25 22 414 A1 geht weiters eine Unterbodenausziehführung für Schubfächer hervor, bei der drehbar an Schienen gelagerte Laufrollen vorgesehen sind, deren Achsen gegenüber der Horizontalen geneigt sind. Dadurch soll ein Auszug geschaffen werden, bei dem die seitliche Reibung wegfällt, ohne daß dazu gesonderte Rollen erforderlich sind.From DE 25 22 414 A1 goes further a Unterbodenausziehführung for drawers, in which rotatably mounted on rails rollers are provided, whose axes are inclined relative to the horizontal. This should an extract be created in which the lateral friction is eliminated, without the need for separate roles are required.

Eine Ausziehführung der eingangs genannten Art ist aus der AT 404 222 B bekannt. Diese weist neben an der Mittelschiene um horizontale Achsen drehbar gelagerten Laufrollen, die an aneinander zugewandten Horizontalflanschen der Korpusschiene und der Auszugschiene abrollen, auch zwischen horizontalen Flanschen der Mittelschiene einerseits und horizontalen Flanschen der Korpusschiene bzw. Auszugschiene andererseits abrollende Laufrollen auf, die in Rollenkäfigen angeordnet sind. Neben um horizontale Achsen drehbaren Laufrollen besitzen diese Führungskäfige auch um vertikale Achsen drehbare Rollen, die zwischen einander gegenüberliegenden vertikalen Flanschen einerseits der Mittelschiene und andererseits der Korpusschiene bzw. Auszugschiene abrollen, wodurch eine Seitenführung erreicht wird. Diese Ausziehführung weist einen-relativ aufwendigen Aufbau auf, der sich auch durch die gleichzeitige Verwendung von an einer Schiene drehbar gelagerten Rollen und in Käfigen angeordneten Wälzkörpern ergibt.An extension guide of the type mentioned is known from AT 404 222 B. This has next to the middle rail about horizontal axes rotatably mounted rollers, which roll on facing horizontal flanges of the carcass rail and the pull-out rail, also between horizontal flanges of the center rail on the one hand and horizontal flanges of the carcass rail or pull-out rail on the other rolling rollers, which are arranged in roller cages , In addition to rollers rotatable about horizontal axes, these guide cages also have rollers which are rotatable about vertical axes and which roll between mutually opposite vertical flanges on the one hand of the middle rail and on the other hand of the carcass rail or pull-out rail, thereby achieving lateral guidance. This pull-out guide has a relatively complex structure, which also results from the simultaneous use of rotatably mounted on a rail rollers and arranged in cages rolling elements.

Aufgabe der Erfindung ist es, eine Unterbodenausziehführung der eingangs genannten Art bereitzustellen, die bei einer niedrigen Bauhöhe sehr gute Laufeigenschaften aufweist und bei der eine gute Seitenführung erreichbar ist, dies bei einem einfachen Aufbau.The object of the invention is to provide a Unterbodenausziehführung of the aforementioned type, which has very good operating characteristics at a low height and in which a good lateral guidance is achievable, this with a simple structure.

Erfindungsgemäß gelingt dies durch eine Unterbodenausziehführung mit den Merkmalen des Anspruchs 1.According to the invention, this is achieved by a Unterbodenausziehführung with the features of claim 1.

Durch die erfindungsgemäße Ausbildung wird ein Unterboden-Differentialauszug in Form einer Rollen-Ausziehführung bereitgestellt, der ohne eine Verwendung von in Käfigen angeordneten Wälzkörper auskommt und aufgrund der Verwendung von an einer Schiene drehbar gelagerten Laufrollen hervorragende Laufeigenschaften aufweist, wobei von den winklig zur Horizontalen angeordneten Laufrollen auch Seitenkräfte aufgenommen werden können. Eine erfindungsgemäße Auszugführung kann auch in einer kleinen Bauhöhe ausgebildet werden, die derjenigen von herkömmlichen kommerziell erhältlichen Unterbodenführungen entsprechen kann. Die geringsten Bauhöhen von am Markt gängigen Unterboden-Vollauszügen betragen etwa 27 bis 28mm, welcher Wert auch bei einer erfindungsgemäßen Ausziehführung erreichbar ist.The inventive construction an underfloor differential extension is provided in the form of a roller pull-out, which makes do without the use of arranged in cages rolling elements and due to the use of rotatably mounted on a rail rollers excellent running characteristics, of which arranged at an angle to the horizontal rollers also lateral forces can be absorbed. An extension guide according to the invention can also be formed in a small height, which may correspond to that of conventional commercially available underbody guides. The lowest heights of common on the market underbody full extensions are about 27 to 28mm, which value can also be achieved in a pull-out according to the invention.

Vorteilhafterweise können bei einer erfindungsgemäßen Ausziehführung alle Laufrollen an der Mittelschiene drehbar gelagert sein, was zu einer rationellen Herstellung einer erfindungsgemäßen Ausziehführung führt, insbesondere im Zusammenhang mit einer Ausbildung der Schienen einer erfindungsgemäßen Ausziehführung in Form von abgekanteten Blechen.Advantageously, in an extension guide according to the invention, all rollers can be rotatably mounted on the center rail, which leads to a rational production of a pull-out guide according to the invention, in particular in connection with a design of the rails of a pull-out guide according to the invention in the form of folded sheets.

Weitere Vorteile und Einzelheiten der Erfindung werden im folgenden anhand der in der beiliegenden Zeichnung dargestellten Ausführungsbeispiele erläutert. In der Zeichnung zeigen:

Fig. 1
eine perspektivische Darstellung eines ersten Ausführungsbeispiel der Erfindung im ausgezogenen Zustand der Schienen;
Fig. 2
eine Ansicht von vorne;
Fig. 3
eine Draufsicht auf die Mittelschiene;
Fig. 4
einen Schnitt entlang der Linie AA von Fig. 3;
Fig. 5
eine perspektivische Darstellung der Mittelschiene in einer Ansicht von schräg vorne (von der gegenüber Fig. 1 gegenüberliegenden Seite);
Fig. 6
die zusammengesetzten Schienen im ausgezogenen Zustand in einem Schnitt entsprechend Fig. 4;
Fig. 7
eine etwas modifizierte Ausbildung der Mittelschiene in einer Ansicht entsprechend Fig. 5;
Fig. 8
eine perspektivische Darstellung eines Auszugs gemäß einer weiteren Ausführungsvariante der Erfindung im ausgezogenen Zustand;
Fig. 9
eine Ansicht des Auszugs von Fig. 8 von vorne;
Fig. 10
eine Draufsicht auf die Mittelschiene gemäß der weiteren Ausführungsvariante der Erfindung;
Fig. 11
einen Schnitt entlang der Linie BB von Fig. 10 und
Fig. 12
die zusammengesetzten Schienen im ausgezogenen Zustand in einem Schnitt entsprechend Fig. 11.
Further advantages and details of the invention are explained below with reference to the embodiments illustrated in the accompanying drawings. In the drawing show:
Fig. 1
a perspective view of a first embodiment of the invention in the extended state of the rails;
Fig. 2
a view from the front;
Fig. 3
a plan view of the center rail;
Fig. 4
a section along the line AA of Fig. 3;
Fig. 5
a perspective view of the center rail in a view obliquely from the front (from the opposite side of FIG. 1 side);
Fig. 6
the composite rails in the extended state in a section corresponding to Fig. 4;
Fig. 7
a somewhat modified design of the center rail in a view corresponding to Fig. 5;
Fig. 8
a perspective view of an extract according to another embodiment of the invention in the extended state;
Fig. 9
a view of the extract of Figure 8 from the front.
Fig. 10
a plan view of the center rail according to the further embodiment of the invention;
Fig. 11
a section along the line BB of Fig. 10 and
Fig. 12
the composite rails in the extended state in a section corresponding to FIG. 11.

Die erfindungsgemäße Unterbodenausziehführung entsprechend dem in den Fig. 1 bis 6 dargestellten Ausführungsbeispiel besitzt eine Auszugschiene 10, eine Korpusschiene 20 und eine Mittelschiene 30, die von der Auszugschiene 10 teilweise umgeben wird. Die Auszugschiene 10 weist einen in diesem Ausführungsbeispiel horizontal ausgebildeten unteren Steg 12, einen seitlichen Verbindungssteg 15 und einen oberen Steg 11 auf, der einen horizontalen Abschnitt und zwei hierzu um 45° nach unten abgekantete Abschnitte umfaßt. Die der Mittelschiene 30 zugewandte Fläche des unteren Steges 12 bildet eine nach oben gerichtete Laufbahn 14 der Auszugschiene 10 und die der Mittelschiene 30 zugewandten Flächen der schräg nach unten abgewinkelten Abschnitte des oberen Stegs 11 bilden (schräg) nach unten gerichtete Laufbahnen 13, 13', die somit beim gezeigten Ausführungsbeispiel einen Winkel von 90° einschließen. Der horizontale Abschnitt des oberen Stegs 11 bildet einen Tragflansch, mit dem die Auszugschiene 10 an der Unterseite eines in Fig. 2 schematisch angedeuteten ausziehbaren Möbelteils 2 befestigbar ist (die hierfür in der Auszugschiene 10 vorgesehenen Bohrungen und die Schrauben sind in den Fig. nicht dargestellt). An der Unterseite des ausziehbaren Möbelteils 2 sind beidseitig aus Mittelschienen und Korpusschienen ausziehbare Auszugschienen befestigt (nicht dargestellt in den Fig.).The Unterbodenausziehführung according to the invention according to the embodiment shown in FIGS. 1 to 6 has a pull-out rail 10, a carcass rail 20 and a middle rail 30 which is partially surrounded by the pull-out rail 10. The drawer rail 10 has a horizontally formed in this embodiment lower web 12, a lateral connecting web 15 and an upper web 11, which comprises a horizontal portion and two thereto by 45 ° downwardly bent portions. The middle rail 30 facing surface of the lower web 12 forms an upwardly directed track 14 of the slide rail 10 and the middle rail 30 facing surfaces of the obliquely downwardly angled portions of the upper web 11 form (obliquely) downwardly facing raceways 13, 13 ', thus at embodiment shown include an angle of 90 °. The horizontal portion of the upper web 11 forms a support flange with which the pull-out rail 10 can be fastened to the underside of an extendable furniture part 2 schematically indicated in FIG. 2 (the holes provided for this purpose in the pull-out rail 10 and the screws are not shown in the figures) ). On the underside of the pull-out furniture part 2 extendable rails are mounted on both sides of middle rails and carcass rails (not shown in the Fig.).

Die Korpusschiene 20 ist mit einem Befestigungsschenkel 21 versehen, der einen an einem Möbelkorpus 1 befestigbaren vertikalen Abschnitt und einen am unteren Ende des vertikalen Abschnitts seitlich abstehenden Abschnitt besitzt, an den ein dreieckförmig abgekanteter Schenkel 22 anschließt. Dieser besitzt einen horizontalen Steg 25 und zwei schrägstehende Stege 26, 27, die parallel zu den schräg nach unten abgekanteten Abschnitten des oberen Stegs 11 der Auszugschiene 10 ausgerichtet sind und an ihren oberen Seitenflächen (schräg) nach oben gerichtete Laufbahnen 23, 23' bilden. Der parallel zum unteren Steg 12 der Auszugschiene 10 liegende horizontale Steg 25 des dreieckförmig abgekanteten Schenkels 22 besitzt an seiner unteren Seitenfläche eine nach unten gerichtete Laufbahn 24. Diese nach unten gerichtete Laufbahn 24 weist durch Abwinklungen des horizontalen Stegs 25 gebildete seitliche Erhöhungen auf, die mit der nach unten gerichteten Laufbahn 24 im gezeigten Ausführungsbeispiel einen Winkel von 45° einschließen.The carcass rail 20 is provided with a mounting leg 21 having a fastened to a furniture body 1 vertical portion and a laterally projecting at the lower end of the vertical portion portion to which a triangular-folded leg 22 connects. This has a horizontal web 25 and two inclined webs 26, 27 which are aligned parallel to the obliquely downwardly bent portions of the upper web 11 of the drawer rail 10 and at their upper side surfaces (obliquely) upwardly oriented tracks 23, 23 'form. The lying parallel to the lower web 12 of the drawer rail 10 horizontal web 25 of the triangular folded leg 22 has at its lower side surface a downward career 24. This downwardly oriented track 24 has by bending the horizontal web 25 formed lateral elevations with the downwardly facing raceway 24 in the embodiment shown include an angle of 45 °.

Die Mittelschiene 30 besitzt obere und untere Tragschenkel 33, 34, die auf einer Seite der Mittelschiene miteinander verbunden sind. Der untere Tragschenkel 34 ist U-förmig ausgebildet mit einem horizontalen Basisschenkel. Der obere Tragschenkel 33 besitzt einen zentralen horizontalen Abschnitt und beidseitig daran anschließende U-förmige Abschnitte, wobei die Basisschenkel 35, 36 der beiden U-förmigen Abschnitte parallel zu den nach unten gerichteten Laufbahnen 13, 13' und den nach oben gerichteten Laufbahnen 23, 23' verlaufen.The center rail 30 has upper and lower support legs 33, 34 which are interconnected on one side of the center rail. The lower support leg 34 is U-shaped with a horizontal base leg. The upper support leg 33 has a central horizontal portion and U-shaped sections adjoining it on both sides, the base legs 35, 36 of the two U-shaped sections being parallel to the downwardly facing raceways 13, 13 'and the upwardly directed raceways 23, 23 'lost.

Die Mittelschiene 30 weist im Bereich ihres vorderen Endes 31 zwei an ihren oberen Tragschenkeln 33 drehbar gelagerte vordere Laufrollen 41, 41' auf. Die Achsen 37, 37' der vorderen Laufrollen 41, 41' sind an den Seitenschenkeln der beiden U-förmigen Abschnitte des oberen Tragschenkels 33 festgelegt und parallel zu den nach unten gerichteten Laufbahnen 13, 13' bzw. den nach oben gerichteten Laufbahnen 23, 23' ausgerichtet. Diese Achsen 37, 37' sind um gegensinnige Winkel 38, 38' gegenüber der Horizontalen geneigt, wobei diese Winkel 38, 38' im gezeigten Ausführungsbeispiel 90° beträgt. Bevorzugterweise liegen diese Winkel 38, 38' im Bereich zwischen 30 und 60° geneigt. Die vorderen Laufrollen 41, 41' wirken mit den nach unten gerichteten Laufbahnen 13, 13' der Auszugschiene 10 zusammen und stützen die Auszugsschiene 10 im ausgezogenen Zustand der Schienen gegen ein Abkippen nach unten ab.The middle rail 30 has in the region of its front end 31 two rotatably mounted on their upper support legs 33 front wheels 41, 41 '. The axes 37, 37 'of the front rollers 41, 41' are fixed to the side legs of the two U-shaped portions of the upper support leg 33 and aligned parallel to the downwardly facing raceways 13, 13 'and the upwardly facing raceways 23, 23' , These axes 37, 37 'are inclined by opposing angles 38, 38' relative to the horizontal, said angle 38, 38 'in the illustrated embodiment is 90 °. Preferably, these angles 38, 38 'are inclined in the range between 30 and 60 °. The front rollers 41, 41 'cooperate with the downwardly facing raceways 13, 13' of the slide rail 10 and support the slide rail 10 in the extended state of the rails against tipping down from.

Im Bereich ihres hinteres Endes 32 weist die Mittelschiene 30 eine an ihrem unteren Tragschenkel 34 um eine horizontale Achse 39 drehbar gelagerte hintere Laufrolle 42 auf, die mit der nach unten gerichteten Laufbahn 24 der Korpusschiene 20 zusammenwirkt und im ausgezogenen Zustand der Schienen das hintere Ende 32 der Mittelschiene an der Korpusschiene 20 gegenüber einer Verschwenkung nach oben abstützt.In the region of its rear end 32, the middle rail 30 has a rear roller 42 rotatably mounted on its lower support leg 34 about a horizontal axis 39, which cooperates with the downwardly oriented track 24 of the carcass rail 20 and in the extended state of the rails, the rear end 32nd the middle rail is supported on the carcass rail 20 with respect to pivoting upwards.

In einem mittleren Bereich der Mittelschiene sind am oberen Tragschenkel 33 erste mittlere Laufrollen 43, 43' drehbar gelagert, deren Achsen 47, 47' parallel zu den Achsen 37, 37' der vorderen Laufrollen 41, 41' ausgerichtet sind. Die ersten mittleren Laufrollen 43, 43' sind mit Spiel gegenüber ihren Achsen 37, 37' drehbar gelagert und bilden sogenannte Differentialrollen, die sowohl mit den nach unten gerichteten Laufbahnen 13, 13' der Auszugschiene 10 als auch mit den nach oben gerichteten Laufbahnen 23, 23' der Korpusschiene 20 zusammenwirken und den differentiellen Lauf der Mittelschiene 30 sicherstellen. Am unteren Tragschenkel 34 der Mittelschiene 30 ist in einem mittleren Bereich der Mittelschiene, beim gezeigten Ausführungsbeispiel vertikal unterhalb der ersten mittleren Laufrollen 43, 43' eine zweite mittlere Laufrolle 44 um eine horizontale Achse 48 drehbar gelagert. Diese zweite mittlere Laufrolle 44 bildet im ausgezogenen Zustand der Schienen ein Gegenlager für die nach oben gerichtete Laufbahn 14 der Auszugschiene 10 (gegenüber einer Verschwenkung nach oben).In a central region of the middle rail 33, first middle rollers 43, 43 'are rotatably mounted on the upper support leg 33, whose axes 47, 47' are aligned parallel to the axes 37, 37 'of the front rollers 41, 41'. The first middle rollers 43, 43 'are rotatably mounted with play with respect to their axes 37, 37' and form so-called differential rollers, both with the downwardly facing raceways 13, 13 'of the slide rail 10 and with the upwardly facing raceways 23, 23 'of the carcass rail 20 cooperate and ensure the differential run of the center rail 30. At the lower support leg 34 of the middle rail 30 is in a central region of the center rail, in the illustrated embodiment, vertically below the first middle rollers 43, 43 ', a second middle roller 44 rotatably supported about a horizontal axis 48. This second middle roller 44 forms in the extended state of the rails an abutment for the upward trajectory 14 of the drawer rail 10 (against a pivoting upward).

Weiters sind am oberen Tragschenkel 33 der Mittelschiene 30 Hilfsrollen 45, 45' mit Spiel auf ihren Achsen 49, 49' drehbar gelagert, deren Achsen 49, 49' parallel zu den Achsen 37, 37' der vorderen Laufrollen 41, 41' ausgerichtet sind. Die Hilfsrolle 45' ist in einem Bereich zwischen der oberen mittleren Laufrolle 43' und dem hinteren Ende 32 an der Mittelschiene 30 drehbar gelagert und dient zur Abstützung gegenüber einem Abkippen nach unten des dem zweiten Ende 32 zugewandten Bereichs der Auszugschiene 10 sowie der Mittelschiene 30 im eingefahrenen Zustand bzw. nur wenig ausgezogenen Zustand der Ausziehführung. Die Hilfsrolle 45 ist im Bereich des zweiten Endes 32 der Mittelschiene 30 drehbar an dieser gelagert. Grundsätzlich wäre auch eine Anordnung der Hilfsrolle 45 in einem gleichen Bereich der Längserstreckung der Mittelschiene 30 wie die Hilfsrolle 45' möglich. Die Anordnung im Bereich des zweiten Endes 32 hat demgegenüber den Vorteil eines geringeren Spiels bezüglich der durch diese Hilfsrolle 45 bewirkten Seitenführung aufgrund der günstigeren Hebelverhältnisse.Furthermore, at the upper support leg 33 of the middle rail 30 auxiliary rollers 45, 45 'with play on their axes 49, 49' rotatably mounted, the axes 49, 49 'parallel to the axes 37, 37' of the front rollers 41, 41 'are aligned. The auxiliary roller 45 'is in a range between the upper middle roller 43' and the rear end 32 rotatably mounted on the center rail 30 and serves to support against tilting down of the second end 32 facing portion of the slide rail 10 and the center rail 30 in the retracted state or only slightly extended state of the pull-out. The auxiliary roller 45 is rotatably mounted in the region of the second end 32 of the middle rail 30 at this. In principle, an arrangement of the auxiliary roller 45 in a same region of the longitudinal extension of the central rail 30 as the auxiliary roller 45 'would be possible. The arrangement in the region of the second end 32 has the advantage of a lesser game with respect to the side guide caused by this auxiliary roller 45 due to the more favorable lever ratios.

Durch die doppelt vorhandenen und mit gegenläufigen Winkeln zur Horizontalen ausgerichteten Laufrollen 41, 41', 43, 43' und 45, 45' in Verbindung mit den zugehörigen nach unten gerichteten Laufbahnen 13, 13' und den nach oben gerichteten Laufbahnen 23, 23' wird eine Seitenführung zwischen den Schienen 10, 20, 30 bewirkt. Um eine weitere Seitenführung zu bewirken (zwischen der Mittelschiene 30 und der Korpusschiene 20) sind die hintere Laufrolle 42 und die zweite mittlere Laufrolle 44 entsprechend der nach unten gerichteten Laufbahn 24 profiliert, d. h. sie weisen seitliche Abschrägungen 40 zur Anlage an den seitlichen Erhöhungen der nach unten gerichteten Laufbahn 24 der Korpusschiene 20 auf.By the double existing and aligned with opposite angles to the horizontal rollers 41, 41 ', 43, 43' and 45, 45 'in conjunction with the associated downwardly facing raceways 13, 13' and the upwardly facing raceways 23, 23 'is a side guide between the rails 10, 20, 30 causes. To effect further lateral guidance (between the center rail 30 and the carcass rail 20), the rear caster 42 and the second center caster 44 are profiled in accordance with the downwardly facing raceway 24, d. H. they have lateral chamfers 40 for abutment with the lateral elevations of the downwardly directed track 24 of the carcass rail 20.

Grundsätzlich könnten auch weitere Hilfsrollen 45, 45' vorgesehen sein. Denkbar und möglich wäre es prinzipiell auch, anstelle der gezeigten Hilfsrolle 45, 45' mindestens eine Hilfsrolle am unteren Tragschenkel 34 im Bereich zwischen der unteren mittleren Laufrolle 44 und dem vorderen Ende 31 der Mittelschiene 30 anzuordnen, die ein Abkippen der Mittelschiene und der Auszugschiene im eingefahrenen oder weitgehend eingefahrenen Zustand der Ausziehführung durch Abstützung zwischen der nach oben gerichteten Laufbahn 14 und der nach unten gerichteten Laufbahn 24 verhindert, wobei eine Seitenführungsfunktion durch seitliche Abschrägungen an der Laufrolle und seitliche Erhöhungen der unteren Laufbahn der Korpusschiene und gegebenenfalls auch der nach oben gerichteten Laufbahn 14 der Auszugschiene 10 erreicht werden könnte.In principle, other auxiliary rollers 45, 45 'could be provided. Conceivable and possible it would in principle also, instead of the auxiliary roller 45, 45 'shown to arrange at least one auxiliary roller on the lower support leg 34 in the region between the lower middle roller 44 and the front end 31 of the middle rail 30, the tilting of the center rail and the drawer rail in retracted or largely retracted state of the pull-out guide by supporting between the upward career 14 and the downward career 24 prevents, with a side guide function by lateral chamfers on the roller and lateral elevations of the lower track of the carcass rail and possibly also the upward career 14 of the drawer rail 10 could be achieved.

Zusätzlich zu den ersten mittleren Laufrollen 43, 43' könnte auch die zweite mittlere Laufrolle 44 mit Spiel gegenüber ihrer Achse 48 gelagert sein. In diesem Fall könnten auch die ersten mittleren Laufrollen 43, 43' spielfrei auf ihren Achsen gelagert sein, wobei zwischen den Laufbahnen und den Laufrollen dann nur ein sehr kleines Spiel sein sollte, um beim Lastwechsel beim Ausziehen (Schwerpunkt des ausziehbaren Möbelteils verschiebt sich vom Bereich hinter den mittleren Laufrollen in den Bereich vor den mittleren Laufrollen) eine kippfreie Bewegung der Führung zu erreichen.In addition to the first middle rollers 43, 43 ', the second middle roller 44 could also be mounted with play relative to its axle 48. In this case, the first middle rollers 43, 43 'could play on their axes be stored, between the tracks and the rollers then only a very small game should be to the load change when undressing (focus of the extendable furniture moves from the area behind the middle rollers in the area in front of the middle rollers) a tilt-free movement of the guide to reach.

Eine etwas modifizierte Ausführung einer Mittelschiene 30 ist in Fig. 7 dargestellt. Die Mittelschiene besteht hier aus einem Kastenprofil, das einseitig über einen Schlitz 3 geöffnet ist. Die Mittelschiene 30 wird somit durch einen oberen U-förmigen Tragschenkel 33 und einen unteren U-förmigen Tragschenkel 34 gebildet, die einseitig (auf der dem Schlitz 3 gegenüberliegenden Seite) miteinander verbunden sind. Die Achsen der am oberen Tragschenkel 33 angeordneten, schräg gestellten Laufrollen 41, 41', 43, 43', 45, 45' sind an aus dem Blech der Mittelschiene 30 herausgestanzten und gegenüber diesem jeweils um 45° aufgebogenen Lappen 4 befestigt.A somewhat modified embodiment of a center rail 30 is shown in FIG. The middle rail here consists of a box profile, which is open on one side via a slot 3. The middle rail 30 is thus formed by an upper U-shaped support legs 33 and a lower U-shaped support legs 34 which are on one side (on the opposite side of the slot 3) connected to each other. The axes of the upper support leg 33 arranged, slanted rollers 41, 41 ', 43, 43', 45, 45 'are attached to punched out of the sheet of the middle rail 30 and opposite this each bent by 45 ° lobes 4.

Das Ausführungsbeispiel gemäß den Fig. 8 bis 13 entspricht einer kinematischen Umkehr des zuvor beschriebenen Ausführungsbeispiels, wobei die bisherige Auszugschiene nunmehr die Korpusschiene bildet und die bisherige Korpusschiene nunmehr die Auszugsschiene bildet. Dabei sind die Schienen zusätzlich um 180° um eine in Längsrichtung der Ausziehführung sich erstreckende Achse gedreht worden und der Befestigungsflansch 21 entsprechend adaptiert worden, wie dies im folgenden beschrieben wird. Gleichwirkende Teile sind dabei bei diesem zweiten Ausführungsbeispiel mit den gleichen Bezugszeichen bezeichnet.The embodiment according to FIGS. 8 to 13 corresponds to a kinematic reversal of the previously described embodiment, wherein the previous pull-out rail now forms the carcass rail and the previous carcass rail now forms the pull-out rail. The rails have additionally been rotated by 180 ° about an axis extending in the longitudinal direction of the pull-out guide and the mounting flange 21 has been adapted accordingly, as will be described below. Like-acting parts are designated in this second embodiment with the same reference numerals.

Die Korpusschiene 20 wird bei diesem Ausführungsbeispiel durch die außenliegende, die Mittelschiene 30 teilweise umgebende Schiene gebildet, die in ihrer Form annähernd der um 180° gedrehten Auszugschiene des ersten Ausführungsbeispiels entspricht. Die Auszugschiene 10 ist mit ihrem seitlichen Verbindungssteg 15 an einem Möbelkorpus 1 befestigbar, und zwar mittels durch Bohrungen 5 eingeschraubte Schrauben (nicht dargestellt in den Fig.). Der nunmehr obenliegende Steg 12, an dem die nach unten gerichtete Laufbahn 24 angeordnet ist, ist zur Ausbildung von seitlichen Erhöhungen dieser Laufbahn nunmehr mit Abwinklungen versehen, an denen die Abschrägungen 40 der hinteren Laufrolle 42 anliegen.The carcass rail 20 is formed in this embodiment by the outer, the middle rail 30 partially surrounding rail that corresponds in shape approximately to the 180 ° rotated pull-out rail of the first embodiment. The drawer rail 10 is fastened with its lateral connecting web 15 to a furniture body 1, by means of screws screwed through holes 5 (not shown in FIGS.). The now overhead web 12, on which the downwardly oriented raceway 24 is arranged, is now provided with bends to form lateral elevations of this career, where the bevels 40 of the rear roller 42 abut.

Der Befestigungsflansch 21 der Auszugschiene 10 besitzt einen oberhalb der Korpusschiene 20 angeordneten horizontalen Abschnitt 28, zu welchem Zweck entsprechende Abkantungen vorgesehen sind (die sich von den Abkantungen des Befestigungsflansches 21 der Korpusschiene 20 des ersten Ausführungsbeispiels unterscheiden). Die nach oben gerichtete Laufbahn 14 der Korpusschiene 20 könnte hier auch ohne die seitlichen Erhöhungen ausgebildet sein (analog zur nach oben gerichteten Laufbahn 14 der Korpusschiene 20 des ersten Ausführungsbeispiels).The mounting flange 21 of the slide rail 10 has a horizontal portion 28 disposed above the carcass rail 20, for which purpose corresponding bends are provided (which differ from the folds of the mounting flange 21 of the carcass rail 20 of the first embodiment). The upwardly directed track 14 of the carcass rail 20 could also be formed here without the lateral elevations (analogous to the upward-pointing track 14 of the carcass rail 20 of the first embodiment).

Die Mittelschiene 30 mit den an ihr gelagerten Rollen entspricht in ihrer Ausbildung der im Zusammenhang mit dem ersten Ausführungsbeispiel beschriebenen Mittelschiene, welche um ihre Längsachse um 180° gedreht wurde.The middle rail 30 with the rollers mounted on it corresponds in its construction to the middle rail described in connection with the first exemplary embodiment, which has been rotated by 180 ° about its longitudinal axis.

Unterschiedliche Modifikationen der gezeigten Ausführungsbeispiele sind denkbar und möglich, ohne den Bereich der Erfindung zu verlassen. So wäre es beispielsweise denkbar und möglich zwei um gegensinnige Winkel zur Horizontalen geneigte hintere Laufrollen sowie zweite mittlere Laufrollen vorzusehen, wobei zwei schräg nach unten gerichtete Laufbahnen 24 der Korpusschiene 20 sowie zwei schräg nach oben gerichtete Laufbahnen 14 der Auszugsschiene 10 vorzusehen wären, die mit diesen Laufrollen zusammenwirken und um entsprechende Winkel gegenüber der Horizontalen geneigt sind.Various modifications of the embodiments shown are conceivable and possible without departing from the scope of the invention. Thus, for example, it would be conceivable and possible to provide two opposing angles to the horizontal inclined rear rollers and second middle rollers, two obliquely downward tracks 24 of the carcass rail 20 and two obliquely upward tracks 14 of the drawer rail 10 would be provided with these Cooperating rollers and inclined at corresponding angles to the horizontal.

LegendeLegend zu den Hinweisziffern:to the reference numbers:

11
Möbelkorpusfurniture body
22
Ausziehbares MöbelteilExtendible furniture part
33
Schlitzslot
44
Lappencloth
55
Bohrungdrilling
1010
Auszugschienepull-out rail
1111
Stegweb
1212
Stegweb
13, 13'13, 13 '
Nach unten gerichtete LaufbahnDownhill career
1414
Nach oben gerichtete LaufbahnUpward career
1515
Verbindungsstegconnecting web
2020
Korpusschienecabinet member
2121
Befestigungsschenkelfastening leg
2222
Schenkelleg
23, 23'23, 23 '
Nach oben gerichtete LaufbahnUpward career
2424
Nach unten gerichtete LaufbahnDownhill career
2525
Horizontaler StegHorizontal jetty
2626
Schrägstehender StegInclined bridge
2727
Schrägstehender StegInclined bridge
2828
Horizontaler AbschnittHorizontal section
3030
Mittelschienemiddle rail
3131
Vorderes EndeFront end
3232
Hinteres EndeRear end
3333
oberer Tragschenkelupper support leg
3434
unterer Tragschenkellower support leg
3535
Basisschenkelbase leg
3636
Basisschenkelbase leg
37, 37'37, 37 '
Achseaxis
38, 38'38, 38 '
Winkelangle
3939
Achseaxis
4040
Abschrägungbevel
41,41'41.41 '
Vordere LaufrolleFront caster
4242
Hintere LaufrolleRear caster
43, 43'43, 43 '
erste mittlere Laufrollefirst middle roller
4444
zweite mittlere Laufrollesecond middle roller
45, 45'45, 45 '
Hilfsrolleauxiliary role
47, 47'47, 47 '
Achseaxis
4848
Achseaxis
49, 49'49, 49 '
Achseaxis

Claims (10)

  1. A pull-out base guide for pull-out furniture parts, particularly cabinets, drawers and shelves, having a carcass rail (20) which may be mounted on the furniture carcass (1), a pull-out rail (10) which may be mounted on the underside of the pull-out furniture part (2), and a centre rail (30), which is arranged between the carcass rail (20) and the pull-out rail (10) and runs differentially between these latter, on both sides of the pull-out furniture part (2), rollers (41-45) being provided for mutual displacement of the rails (10, 20, 30), characterised in that
    - at least two front rollers (41, 41'), whereof the axes (37, 37') are inclined through opposing angles (38, 38') with respect to the horizontal, are rotatably mounted on the centre rail (30) in the region of its front end (31), at least one rear roller (42) is rotatably mounted on the centre rail (30) in the region of its rear end (32) and at least two first centre rollers (43, 43'), whereof the axes (47, 47') are located parallel to the axes (37, 37') of the front rollers (41, 41'), are rotatably mounted on the centre rail (30) in its centre region, and at least one second centre roller (44), whereof the axis (48) is located parallel to the axis (39) of the at least one rear roller (42) is rotatably mounted on the centre rail (30) in its centre region,
    - the pull-out rail (10) has two mutually angled, downwardly directed tracks (13, 13') cooperating with the front rollers (41, 41') and the first centre rollers (43, 43') and at least one upwardly directed track (14) cooperating with the at least one second centre roller (44),
    - and the carcass rail (20) has two mutually angled upwardly directed tracks (23, 23') cooperating with the first centre rollers (43, 43') and at least one downwardly directed track (24) cooperating with the at least one rear roller (42).
  2. A pull-out base guide according to Claim 1, characterised in that the downwardly directed track (24) of the carcass rail (20) has lateral raised portions.
  3. A pull-out base guide according to Claim 2, characterised in that the rear roller (42) of the centre rail (30) and preferably also the two centre rollers (44) of the centre rail (30) has/have lateral chamfered portions (40) for lying against the obliquely projecting lateral raised portions of the downwardly directed track (24) of the carcass rail (20).
  4. A pull-out base guide according to one of Claims 1 to 3, characterised in that at least two auxiliary rollers (45, 45'), whereof the axes are located parallel to the axes (37, 37') of the front rollers (41, 41') and which cooperate with the downwardly directed tracks (13, 13') of the pull-out rail (10) and with the upwardly directed tracks (23, 23') of the carcass rail (20), are rotatably mounted on the centre rail (30) in the region behind the centre rollers (43, 43', 44), at least one of the auxiliary rollers (45, 45') being arranged in a region of the longitudinal extent of the centre rail (30) which is located between the centre rollers (43, 43', 44) and the at least one rear roller (42).
  5. A pull-out base guide according to one of Claims 1 to 4, characterised in that the axes (37, 37') of the two front rollers (41, 41') are inclined through an angle in the range between 30° and 60° with respect to the horizontal, these angles preferably being approximately 45°.
  6. A pull-out base guide according to one of Claims 1 to 4, characterised in that axis of the rear roller (42) and the axis (48) of the second centre roller (44) are horizontal.
  7. A pull-out base guide according to one of Claims 1 to 6, characterised in that the centre rail (30) has upper and lower supporting limbs (33, 34), the centre rail (30) being surrounded by the pull-out rail (10) and the carcass rail (20) having a limb (22) which projects into the region between the two supporting limbs (33, 34) and on which the tracks (23, 23', 24) of the carcass rail (20) are arranged (Fig. 2).
  8. A pull-out base guide according to one of Claims 1 to 6, characterised in that the centre rail has upper and lower supporting limbs (33, 34) which are connected to one another at one side, the carcass rail (20) surrounding the centre rail (30) and the pull-out rail (10) having a limb (22) which projects into the region between the two supporting limbs (33, 34) and on which the tracks (13, 13', 14) of the pull-out rail (10) are arranged (Fig. 9).
  9. A pull-out base guide according to one of Claims 1 to 8, characterised in that the first centre rollers (43, 43') and/or the second centre roller(s) (44) is/are mounted with play in relation to their respective axes (47, 47', 48).
  10. A pull-out base guide according to one of Claims 1 to 9, characterised in that all rollers (41 to 45) of the pull-out guide are rotatably mounted on the centre rail (30) .
EP03003798A 2002-04-02 2003-02-20 Bottom-slide for extensible furniture Expired - Lifetime EP1350444B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT5072002 2002-04-02
AT0050702A AT412181B (en) 2002-04-02 2002-04-02 UNDERFLOOR EXTENSION GUIDE FOR EXTENDABLE FURNITURE PARTS

Publications (2)

Publication Number Publication Date
EP1350444A1 EP1350444A1 (en) 2003-10-08
EP1350444B1 true EP1350444B1 (en) 2007-04-11

Family

ID=27809068

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03003798A Expired - Lifetime EP1350444B1 (en) 2002-04-02 2003-02-20 Bottom-slide for extensible furniture

Country Status (3)

Country Link
EP (1) EP1350444B1 (en)
AT (2) AT412181B (en)
DE (1) DE50306990D1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006012088U1 (en) * 2006-08-04 2007-12-20 Grass Gmbh Device with a guide unit for guiding a relative to a body movable furniture drawer and furniture
DE202008013003U1 (en) * 2008-09-30 2010-02-25 Paul Hettich Gmbh & Co. Kg Furniture drawer guide for a furniture pull-out part
KR101114486B1 (en) * 2011-08-18 2012-02-24 박윤식 Rail for drawer
DE102016218737A1 (en) * 2016-09-28 2018-03-29 BSH Hausgeräte GmbH Rail extension device for a household appliance with an axle bearing for a rolling element and household appliance

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH578851A5 (en) * 1974-06-20 1976-08-31 Stocker Josef
DE3505786A1 (en) * 1985-02-20 1986-08-21 Häfele KG, 7270 Nagold GUIDE, ESPECIALLY EXTENDABLE FURNITURE PARTS
AT391603B (en) * 1989-03-09 1990-11-12 Fulterer Gmbh DRAWER DRAWER DIFFERENTIAL DESIGN
DE3921859A1 (en) * 1989-07-04 1991-01-17 Schock Metallwerk UNDERFLOOR FULL EXTENSION
AT407473B (en) * 1994-07-07 2001-03-26 Alfit Ag FULL EXTENSION FOR DRAWERS
DE4432821A1 (en) * 1994-09-15 1996-03-21 Lautenschlaeger Mepla Werke Pull out guide for drawer or other furniture part
AT404222B (en) * 1995-01-04 1998-09-25 Blum Gmbh Julius EXTENSION GUIDE SET FOR DRAWERS
DE29616756U1 (en) * 1996-09-26 1996-11-28 REME-Möbelbeschläge GmbH, 33161 Hövelhof Full extension fitting
DE19931842B4 (en) * 1999-07-09 2011-03-10 Paul Hettich Gmbh & Co. Kg Pull-out guide with cylindrical triangularly arranged rolling elements

Also Published As

Publication number Publication date
DE50306990D1 (en) 2007-05-24
AT412181B (en) 2004-11-25
EP1350444A1 (en) 2003-10-08
ATA5072002A (en) 2004-04-15
ATE359008T1 (en) 2007-05-15

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