EP2538818B1 - Pull-out guide for drawers - Google Patents

Pull-out guide for drawers Download PDF

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Publication number
EP2538818B1
EP2538818B1 EP11707554.9A EP11707554A EP2538818B1 EP 2538818 B1 EP2538818 B1 EP 2538818B1 EP 11707554 A EP11707554 A EP 11707554A EP 2538818 B1 EP2538818 B1 EP 2538818B1
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EP
European Patent Office
Prior art keywords
rail
drawer
carriage
wheel
synchronization
Prior art date
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Active
Application number
EP11707554.9A
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German (de)
French (fr)
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EP2538818A1 (en
Inventor
Gerald Friesenecker
Ulrich Greussing
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Julius Blum GmbH
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Julius Blum GmbH
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Application filed by Julius Blum GmbH filed Critical Julius Blum GmbH
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Classifications

    • 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
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/49—Sliding drawers; Slides or guides therefor with double extensible guides or parts
    • A47B88/493—Sliding drawers; Slides or guides therefor with double extensible guides or parts with rollers, ball bearings, wheels, or the like
    • 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
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/44—Sequencing or synchronisation of drawer slides or functional units
    • A47B88/447—Simultaneous movement of rails within drawer slides, i.e. with a coordination of movement with all rail elements moving at the same time
    • 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
    • A47B2210/00—General construction of drawers, guides and guide devices
    • A47B2210/0002—Guide construction for drawers
    • A47B2210/0013—Guide construction for drawers having a pinion on the intermediate drawer rail, between the upper and lower rail
    • 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
    • A47B2210/00—General construction of drawers, guides and guide devices
    • A47B2210/0002—Guide construction for drawers
    • A47B2210/0064—Guide sequencing or synchronisation
    • A47B2210/007—Three slide synchronisation

Definitions

  • the present invention relates to a pull-out for drawers with a to be fixed to a cabinet carcass rail to be fixed to the drawer drawer rail and a movably mounted between the carcass rail and the middle rail middle rail, at least one carriage mounted movably between at least two rails of the pull-out and wherein a synchronization device is provided for avoiding running errors of the pull-out guide, wherein the synchronization device has at least one synchronization wheel, which cooperates on the one hand with the at least one carriage, on the other hand with a arranged on one of the rails tread and wherein the synchronization as a gear wheel with two pinion gears is formed with different diameters.
  • the invention relates to a piece of furniture with at least one drawer, which is movably mounted relative to a furniture body via a pull-out of the type to be described.
  • a synchronization device is provided to avoid running errors of the pull-out.
  • run errors are both rail misalignments and carriage misalignments which can result in the drawer being left open during normal use.
  • a rail misalignment occurs, for example, when the drawer rail deviates from the synchronous movement relative to the displaceable middle rail, as a result of which the relative position of the rails relative to one another is incorrect.
  • a carriage error a malposition of the carriage is called, which builds up on an opening and closing movement and which is determined by the difference built to the correct starting position.
  • a carriage error can build up in particular due to slippage or due to elasticity in the roller or running system during the course of movement. From a certain number of movements, the carriage can be so far from its target position that it hits an end stop in the rail system before the drawer is even complete is closed, pullout guides often have a collection device with a damper, which dampens the Einzugsweg the drawer over the last closing range of the drawer up to the full closed position. However, these dampers reduce the closing dynamics of the drawer so much that a resulting during the movement of the drawer running error can not be compensated for lack of kinetic energy. For each additional movement in which the drawer is not fully opened, the drawer remains in a further open position corresponding to the running error, which can be visually disturbing and also dangerous.
  • a carriage synchronization is for example in the AT 360 699 B described by the applicant, wherein the displaceably mounted between the carcass rail and the center rail carriage and the movable between the middle rail and the drawer rail carriage are positively controlled relative to each other via a mounted on the center rail gear.
  • a rail synchronization is for example in the AT 388 855 B described, wherein the movement of the rails is controlled by a gear, which is engaged with arranged on the rails gear portions.
  • a drawer pull-out guide has become known with a synchronization device, wherein the synchronization wheel has two pinion gears with different diameters.
  • the smaller pinion gear controls the movement of the drawer rail relative to the cabinet rail, while the larger pinion gear always controls the movement between two carriages running between different pairs of rails.
  • the two pinion gears are indeed on one stored common axis, but run separately and independently, so there is no synchronization between the two pinion gears.
  • Object of the present invention is to provide a drawer extension with a synchronization device of the type mentioned, which is simple in construction and largely prevents the mentioned running errors.
  • the first pinion gear and the second pinion gear are connected to one another in a rotationally fixed manner, with the other pinion wheel also moving during a movement of a pinion wheel.
  • a direct coupling between a movable rail and a carriage of the same can be produced by the proposed synchronization device.
  • the present invention is based on the idea to provide a synchronization device for at least temporary coupling between at least one rail and at least one carriage of Schubladenauszieh Unit.
  • the Synchronisationsrad can be designed either as a pinion or gear, which cooperates with a corresponding running surface of a rail of the pull-out.
  • the tread may be either the catwalk of a rail or alternatively as a arranged on the rails or trained teeth on which the gear can run.
  • the synchronization wheel is rotatably mounted on the middle rail, preferably on a horizontal shaft.
  • the synchronization wheel passes through the center rail at a recess, wherein the synchronization wheel on one side of the recess with the carriage and on the other side of the recess with one of the rails cooperates.
  • the synchronization is designed as a gear wheel, which meshes on the one hand with a toothing of the carriage and on the other hand with a toothing of a rail.
  • the gear comprises two pinion gears of different diameter, wherein a first pinion gear meshes with the carriage and a second pinion gear with a rail, wherein the first pinion gear can be mounted on one side of the middle rail and the second pinion gear on an opposite, second side of the center rail.
  • the two pinion gears can be mounted on a common, preferably horizontal axis.
  • the first and the second pinion gear are rotatably connected to each other, so that when moving a pinion gear and the other pinion gear moves.
  • a particular advantage of the invention lies in the possibility of bringing about a translation between the drawer rail and the center rail by means of a different diameter of the pinion wheels in order thus to influence the track length of these rails to be covered. So it is possible, for example, the Auszugsweg the drawer rail with 55% and the Auszugsweg the center rail accordingly with 45% to dimension.
  • the pull-out path of the drawer rail can be selected between 50% and 60% and the pull-out path of the middle rail can be selected accordingly between 50% and 40%.
  • the carriage to be synchronized between the carcass rail and the center rail is slidably mounted and that the synchronization wheel cooperates with the drawer rail.
  • the drawer rail when the drawer is moved manually, the force is introduced from the drawer rail directly into the rail control, the carriage mounted between the carcass rail and the center rail, the center rail and the drawer rail being synchronized. Due to the fact that in this embodiment the drawer rail always assumes a defined relative position relative to the middle rail, it is even possible to dispense with a synchronization of the upper carriage (i.e., the carriage mounted between the middle rail and the carcass rail).
  • a well-known prior art control device to avoid and / or correct the carriage error.
  • the or between the rails movable carriage has or have at least one or more rolling elements, which are provided for transmitting the load of the drawer.
  • the rolling element or rollers may comprise rollers, cones, cylindrical rollers, discs and / or balls.
  • the furniture according to the invention has at least one drawer which is movably mounted relative to a furniture body via a pull-out of the type in question.
  • Fig.1 shows a perspective view of a piece of furniture 1, wherein drawers 3 are movably mounted on Schubladenauszieh Entryen 4 relative to a furniture body 2.
  • the drawer pull-out guide 4 is formed in the embodiment shown as a full extension and has a body 2 to be fixed to the cabinet body rail 5, a movable relative to the middle rail 6 and an extendable drawer rail 7.
  • the drawer rail 7 is in each case to be connected to one of the drawers 3.
  • Between the carcass rail 5 and the middle rail 6, at least a first displaceable carriage and between the middle rail 6 and the drawer rail at least a second displaceable carriage are arranged, which, however, do not emerge from the figure shown.
  • the carriages have rolling elements for transmitting the load of the drawer 3.
  • Fig. 2 shows the pull-out guide 4 in cross section, wherein the furniture body 2 to be fastened to the carcass rail 5, the relatively displaceable center rail 6 and the drawer 3 to be connected to the drawer rail 7 can be seen.
  • a first carriage 8 is slidably mounted, which engages around a horizontal web of the carcass rail 5.
  • a second carriage 9 is slidably mounted.
  • the first carriage 8 has rolling elements 8a, 8b and the second carriage 9 has at least one rolling element 9a for transmitting the load of the drawer 3.
  • the pull-out guide 4 has a synchronization device 10 with a synchronization wheel 11, which has at least one of the movable rails 6, 7 with at least one of the two carriages 8, 9 synchronized.
  • a relative movement between the first (lower) carriage 8 and the drawer rail 9 is synchronized.
  • the upper carriage 9 can remain uncontrolled, since this hardly deviates from its nominal position by the positive control of the other moving components and so a synchronization of the upper carriage 9 is not absolutely necessary.
  • the synchronization wheel 11 of the synchronization device 10 can be designed in the form of a toothed wheel which, on the one hand, meshes with the lower carriage 8, on the other hand with a running surface 12 arranged or formed on the drawer rail 7 - in the present case with a toothed rail mounted on the drawer rail 7.
  • the gear 11 is formed in the illustrated embodiment as a double-stage gear 11 with pinion gears 11 a and 11 b, which have a different diameter.
  • the smaller pinion gear 11 a meshes with the lower carriage 8, while the larger pinion gear 11 b meshes with the tread 12 formed as a rack.
  • the Synchronisationsrad 11 is rotatably mounted on the center rail 6 and passes through them on a present at the middle rail 6 recess 13, so that the smaller pinion 11a on one side of the recess 13 with the carriage 8 and the larger pinion gear 11 b on the other side of the recess 13 cooperates with the rack 12 of the drawer rail 7.
  • the pull-out guide also has a spring-assisted intake device 14 for pulling the drawer 3 into the closed end position and a damping device 15 which dampens this pull-in movement of the drawer 3 in the last closing region up to the fully closed position.
  • Fig. 3 shows a cross section of the drawer pull-4 in a perspective view, wherein the movable in the pull-out X drawer rail 7 is in the fully open position.
  • the drawer rail 7 has a known according to the prior art bearing element 17, which is provided as Einschubbegrenzung the drawer 3 when mounted on the drawer extension guide 4 and the position adjustment of the rear portion of the drawer 3, so that the outer joint pattern of the drawer. 3 is adjustable.
  • a tread 12 is fixed in the form of a rack, which in the pull-out direction X of the drawer rail 7, starting from the rear end portion over more than half the length of the drawer rail. 7 can extend.
  • a pinion gear 11 b is rotatably mounted, which meshes with the rack 12 of the drawer rail 7.
  • the pinion gear 11 b is mounted on a horizontal shaft 18 which passes through the middle rail 6.
  • On the shaft 18 and the smaller pinion gear 11a is mounted, which meshes with a rack 19 of the lower carriage 8.
  • Visible is also the upper carriage 9, which is slidably mounted between the middle rail 9 and the drawer rail 7 and the rotatably mounted on the center rail 6 support roller 16a.
  • Fig. 4a 1 shows the pull-out guide 4 with the carcass rail 5 and the drawer rail 7 which can be displaced in the pull-out direction X in a plan view
  • Fig. 4b shows that in Fig. 4a marked detail in an enlarged view, ie a horizontal section of the pull-out 4.
  • the center rail 6 has vertical webs 6a and 6b, on whose outer sides in each case a support roller 16a, 16b is rotatably mounted on the center rail 6.
  • the smaller pinion gear 11 a meshes with the teeth 19 of the carriage 8. With the smaller pinion gear 11 a is via a shaft 18, the larger pinion gear 11 b rotatably connected, which with the in Fig. 3 shown running surface 12 (rack) of the drawer rail 7 meshes.
  • Fig. 5 shows an exploded view of the drawer extension guide 4.
  • a first carriage 8 is mounted to be moved with load-transmitting rolling elements 8b.
  • a second carriage 9 is slidably mounted with load-transmitting rolling elements 9a.
  • the middle rail 6 has a lateral recess 13 which is penetrated by the shaft 18.
  • a pinion gear 11 is arranged or formed, which meshes with the toothing 19 of the lower carriage 8.
  • On the shaft 18 and the larger pinion gear 11 b is mounted, which cooperates with a tread 12 of the drawer rail 7 - in the present case with a rack 12a.
  • a collection device 14 For retracting the drawer rail 7 in the closed end position, a collection device 14 is provided with a spring-loaded driver 20 which is releasably coupled to the drawer rail 7. To damp this retraction movement, a damping device 15 is present, which is formed in the embodiment shown as a fluid damper with a cylinder-piston unit. Finally, a still to be mounted on the carcass rail 5 bearing block 21 is provided with support rollers on which the drawer rail 7 can be supported.
  • Fig. 6 shows a partially broken-away view with enlarged detail of the Drawerauszieh Adjust 4, which has a carcass rail 5, a middle rail 6 and a drawer rail 7. Good recognizable is arranged on the underside of the drawer rail 7 rack 12a.
  • the rack 12a is invisible from the outside, whereby dirt can be reduced.
  • the mounted on the shaft 18 pinion 11 b can run on the rack 12 a. This in the pinion gear 11 b introductory movement is introduced via the shaft 18 and the pinion gear 11 a not shown here directly into the lower carriage 8.
  • both carriages 8, 9 each have a control device 22a and 22b, by the or by the carriage 8, 9 at a given misalignment at predetermined locations temporarily on one of the rails 5, 6, 7 of the drawer extension guide 4 can be locked ,
  • This locking can be achieved by the method of the rails 5, 6, 7 to each other again, so that the carriage 8, 9 after releasing the locking over the predetermined places away in the direction of the end positions of the carriage 8, 9 is movable.
  • One way to remedy this misalignment is in the EP 1 393 654 B1 Described by the applicant, so that the closer functioning of these control devices 22a, 22b need not be described in detail at this point.
  • the present invention is not limited to the embodiments shown, but includes and extends to all variants and technical equivalents that may fall within the scope of the following claims. Also, the position information selected in the description, such as “top”, “bottom”, “side”, etc. based on the usual installation position of the components used as well as on the figure and are in a change in position mutatis mutandis to the new situation transfer.

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  • Drawers Of Furniture (AREA)

Description

Die vorliegenden Erfindung bezieht sich auf eine Ausziehführung für Schubladen mit einer an einem Möbelkorpus zu befestigenden Korpusschiene, einer an der Schublade zu befestigenden Ladenschiene und einer zwischen der Korpusschiene und der Ladenschiene bewegbar gelagerten Mittelschiene, wobei zwischen wenigstens zwei Schienen der Ausziehführung zumindest ein Laufwagen verfahrbar gelagert ist, und wobei eine Synchronisierungsvorrichtung zur Vermeidung von Lauffehlern der Ausziehführung vorgesehen ist, wobei die Synchronisierungsvorrichtung wenigstens ein Synchronisationsrad aufweist, welches einerseits mit dem zumindest einen Laufwagen, andererseits mit einer an einer der Schienen angeordneten Lauffläche zusammenwirkt und wobei das Synchronisationsrad als Zahnrad mit zwei Ritzelrädern mit unterschiedlichem Durchmesser ausgebildet ist.The present invention relates to a pull-out for drawers with a to be fixed to a cabinet carcass rail to be fixed to the drawer drawer rail and a movably mounted between the carcass rail and the middle rail middle rail, at least one carriage mounted movably between at least two rails of the pull-out and wherein a synchronization device is provided for avoiding running errors of the pull-out guide, wherein the synchronization device has at least one synchronization wheel, which cooperates on the one hand with the at least one carriage, on the other hand with a arranged on one of the rails tread and wherein the synchronization as a gear wheel with two pinion gears is formed with different diameters.

Im Weiteren betrifft die Erfindung ein Möbel mit zumindest einer Schublade, welche über eine Ausziehführung der zu beschreibenden Art relativ zu einem Möbelkorpus verfahrbar gelagert ist.Furthermore, the invention relates to a piece of furniture with at least one drawer, which is movably mounted relative to a furniture body via a pull-out of the type to be described.

Bei Ausziehführungen für Schubladen, welche als Vollauszug mit einer Korpusschiene, einer Ladenschiene und einer dazwischenwirkenden Mittelschiene ausgebildet sind, ist zur Vermeidung von Lauffehlern der Ausziehführung eine Synchronisierungsvorrichtung vorzusehen. Solche Lauffehler sind sowohl Schienenfehlstellungen als auch Laufwagenfehlstellungen, welche zu einem Offenstehen der Schublade im normalen Gebrauch führen können. Eine Schienenfehlstellung tritt beispielsweise auf, wenn die Ladenschiene relativ zur verschiebbaren Mittelschiene vom synchronen Lauf abweicht, wodurch die Relativlage der Schienen zueinander nicht korrekt ist. Als Laufwagenfehler wird hingegen eine Fehlstellung des Laufwagens bezeichnet, die sich über eine Öffnungs- und Schließbewegung aufbaut und welche durch die aufgebaute Differenz zur korrekten Ausgangslage bestimmt ist. Ein Laufwagenfehler kann sich insbesondere durch Schlupf oder aufgrund von Elastizität im Rollen- bzw. Laufsystem während des Bewegungsablaufes aufbauen. Ab einer bestimmten Anzahl von Bewegungen kann der Laufwagens sich so weit von seiner Sollposition befinden, dass dieser auf einen Endanschlag im Schienensystem auftrifft, bevor die Schublade überhaupt vollständig geschlossen ist, Ausziehführungen weisen häufig eine Einzugsvorrichtung mit einem Dämpfer auf, welcher den Einzugsweg der Schublade über den letzten Schließbereich der Schublade bis hin zur vollständigen Schließstellung dämpft. Diese Dämpfer verringern jedoch die Schließdynamik der Schublade dermaßen, dass ein während der Bewegung der Schublade entstandener Lauffehler mangels fehlender Bewegungsenergie nicht mehr ausgeglichen werden kann. Bei jeder zusätzlichen Bewegung, bei der die Schublade nicht vollständig geöffnet wird, bleibt die Schublade entsprechend dem Lauffehler in einer weiteren Offenstellung stehen, was optisch störend und überdies auch gefährlich sein kann.In drawers for drawers, which are designed as a full extension with a carcass rail, a drawer rail and an intermediate middle rail, a synchronization device is provided to avoid running errors of the pull-out. Such run errors are both rail misalignments and carriage misalignments which can result in the drawer being left open during normal use. A rail misalignment occurs, for example, when the drawer rail deviates from the synchronous movement relative to the displaceable middle rail, as a result of which the relative position of the rails relative to one another is incorrect. As a carriage error, however, a malposition of the carriage is called, which builds up on an opening and closing movement and which is determined by the difference built to the correct starting position. A carriage error can build up in particular due to slippage or due to elasticity in the roller or running system during the course of movement. From a certain number of movements, the carriage can be so far from its target position that it hits an end stop in the rail system before the drawer is even complete is closed, pullout guides often have a collection device with a damper, which dampens the Einzugsweg the drawer over the last closing range of the drawer up to the full closed position. However, these dampers reduce the closing dynamics of the drawer so much that a resulting during the movement of the drawer running error can not be compensated for lack of kinetic energy. For each additional movement in which the drawer is not fully opened, the drawer remains in a further open position corresponding to the running error, which can be visually disturbing and also dangerous.

Zur Korrektur bzw. zur Vermeidung derartiger Fehlbewegungen der Schienen und/oder des Laufwagens wurden bereits zahlreiche Lösungen vorgeschlagen. Eine Laufwagensynchronisation ist beispielsweise in der AT 360 699 B der Anmelderin beschrieben, wobei der zwischen der Korpusschiene und der Mittelschiene verschiebbar gelagerte Laufwagen und der zwischen der Mittelschiene und der Ladenschiene verschiebbare Laufwagen über ein an der Mittelschiene gelagertes Zahnrad relativ zueinander zwangsgesteuert werden.To correct or avoid such erroneous movements of the rails and / or the carriage numerous solutions have already been proposed. A carriage synchronization is for example in the AT 360 699 B described by the applicant, wherein the displaceably mounted between the carcass rail and the center rail carriage and the movable between the middle rail and the drawer rail carriage are positively controlled relative to each other via a mounted on the center rail gear.

Eine Schienensynchronisation ist beispielsweise in der AT 388 855 B beschrieben, wobei der Bewegungsablauf der Schienen über ein Zahnrad gesteuert wird, welches mit an den Schienen angeordneten Verzahnungsabschnitten in Eingriff steht.A rail synchronization is for example in the AT 388 855 B described, wherein the movement of the rails is controlled by a gear, which is engaged with arranged on the rails gear portions.

In der EP 1 374 734 A wurde eine Schubladenführung vorgeschlagen, welche sowohl eine Synchronisationsvorrichtung zur Synchronisation der Laufwagen als auch eine zusätzliche Kompensationseinrichtung zur Kompensation eines Synchronlauffehlers der Schienen aufweist.In the EP 1 374 734 A a drawer guide has been proposed, which has both a synchronization device for synchronization of the carriage and an additional compensation device for compensating for a synchronous running error of the rails.

In der DE 10 2005 016 418 A1 ist eine Schubladenausziehführung mit einer Synchronisierungsvorrichtung bekannt geworden, wobei das Synchronisationsrad zwei Ritzelräder mit unterschiedlichem Durchmesser aufweist. Das kleinere Ritzelrad steuert die Bewegung der Ladenschiene relativ zur Korpusschiene, während das größere Ritzelrad stets die Bewegung zwischen zwei Laufwagen steuert, welche zwischen verschiedenen Schienenpaaren ablaufen. Die beiden Ritzelräder sind zwar auf einer gemeinsamen Achse gelagert, laufen aber getrennt und unabhängig voneinander, sodass zwischen den beiden Ritzelrädern keine Synchronisation vorliegt.In the DE 10 2005 016 418 A1 a drawer pull-out guide has become known with a synchronization device, wherein the synchronization wheel has two pinion gears with different diameters. The smaller pinion gear controls the movement of the drawer rail relative to the cabinet rail, while the larger pinion gear always controls the movement between two carriages running between different pairs of rails. The two pinion gears are indeed on one stored common axis, but run separately and independently, so there is no synchronization between the two pinion gears.

In der DE 10 2004 002 823 A1 geht eine Schubladenausziehführung mit den Merkmalen des Oberbegriffs des Patentanspruchs 1 hervor. Nachteilig dabei ist, dass für die erwünschte Synchronisation sowohl an der Korpusschiene als auch an der Ladenschiene und auch an beiden Laufwagen Zahnstangen angebracht werden müssen, was die Anzahl der erforderlichen Bauteile erhöht. Außerdem wird bei dieser Konstruktion aufgrund der beiden Zahnräder, welche in Montagelage der Schubladenausziehführung jeweils oben und unten in die Zahnstangen eingreifen, ein erheblicher Reibungswiderstand generiert, wodurch der Lauf der Schubladenausziehführung erschwert ist.In the DE 10 2004 002 823 A1 is a drawer extension with the features of the preamble of claim 1 shows. A disadvantage is that racks must be mounted for the desired synchronization both on the carcass rail and on the drawer rail and on both carriages, which increases the number of required components. In addition, a considerable frictional resistance is generated in this construction due to the two gears, which engage in the mounting position of the drawer extension each top and bottom in the racks, whereby the run of the drawer extension is difficult.

Aufgabe der vorliegenden Erfindung ist es, eine Schubladenausziehführung mit einer Synchronisierungsvorrichtung der eingangs erwähnten Gattung vorzuschlagen, welche einfach aufgebaut ist und die angesprochenen Lauffehler weitgehend verhindert.Object of the present invention is to provide a drawer extension with a synchronization device of the type mentioned, which is simple in construction and largely prevents the mentioned running errors.

Dies wird erfindungsgemäß durch die Merkmale des Patentanspruchs 1 gelöst. Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Unteransprüchen angegeben.This is achieved by the features of claim 1. Further advantageous embodiments of the invention are specified in the dependent subclaims.

Gemäß der Erfindung ist also vorgesehen, dass das erste Ritzelrad und das zweite Ritzelrad drehfest miteinander verbunden sind, wobei sich bei einer Bewegung eines Ritzelrades auch das andere Ritzelrad mitbewegt.According to the invention, it is thus provided that the first pinion gear and the second pinion gear are connected to one another in a rotationally fixed manner, with the other pinion wheel also moving during a movement of a pinion wheel.

Mit anderen Worten kann durch die vorgeschlagene Synchronisierungsvorrichtung eine direkte Kopplung zwischen einer bewegbaren Schiene und einem Laufwagen derselben hergestellt werden. Während bei herkömmlichen Lösungen also jeweils die Schienen und jeweils die Laufwagen relativ zueinander gesteuert wurden, so beruht die gegenständliche Erfindung auf dem Grundgedanken, eine Synchronisierungsvorrichtung zur zumindest zeitweiligen Kopplung zwischen wenigstens einer Schiene und wenigstens einem Laufwagen der Schubladenausziehführung vorzusehen.In other words, a direct coupling between a movable rail and a carriage of the same can be produced by the proposed synchronization device. While in conventional solutions so the rails and each carriage were controlled relative to each other, so the present invention is based on the idea to provide a synchronization device for at least temporary coupling between at least one rail and at least one carriage of Schubladenausziehführung.

Während bei herkömmlichen Schienensteuerungen auf beiden Schienen Zahnstangen angeordnet oder ausgebildet werden mussten, so ist gemäß der Erfindung die Anordnung von einer einzigen Zahnstange an einer der Schienen ausreichend, sodass die Anzahl der Bauteile reduziert werden kann.While racks had to be arranged or formed on both rails in conventional rail controls, the arrangement of a single rack on one of the rails is sufficient according to the invention, so that the number of components can be reduced.

Das Synchronisationsrad kann entweder als Ritzel bzw. Zahnrad ausgeführt sein, welches mit einer korrespondierenden Lauffläche einer Schiene der Ausziehführung zusammenwirkt. Die Lauffläche kann dabei entweder der Laufsteg einer Schiene sein oder alternativ als eine an den Schienen angeordnete oder ausgebildete Verzahnung, an der das Zahnrad ablaufen kann. Ein Vorteil einer Zahnstangen-Ritzel-Anordnung liegt in der formschlüssigen und schlupffreien Synchronisierung, wobei eine kompakte Anordnung an der Ausziehführung möglich ist. Auch ist es möglich, die Lauffläche der Schiene - an der das Synchronisationsrad abläuft - direkt im Schienenmaterial auszubilden, wobei die Lauffläche in den Schienen eingeformt ist (z.B. als Riffelung) und sich in Ausziehrichtung der Schienen erstreckt.The Synchronisationsrad can be designed either as a pinion or gear, which cooperates with a corresponding running surface of a rail of the pull-out. The tread may be either the catwalk of a rail or alternatively as a arranged on the rails or trained teeth on which the gear can run. An advantage of a rack and pinion arrangement is in the positive and slip-free synchronization, with a compact arrangement on the pull-out guide is possible. It is also possible, the tread of the rail - on which runs the synchronization wheel - directly in the rail material form, wherein the tread is formed in the rails (eg as corrugations) and extending in the direction of withdrawal of the rails.

Gemäß einem Ausführungsbeispiel der Erfindung kann vorgesehen sein, dass das Synchronisationsrad an der Mittelschiene - vorzugsweise an einer horizontalen Welle -drehbar gelagert ist. In diesem Zusammenhang kann es vorteilhaft sein, wenn das Synchronisationsrad die Mittelschiene an einer Aussparung durchsetzt, wobei das Synchronisationsrad auf einer Seite der Aussparung mit dem Laufwagen und auf der anderen Seite der Aussparung mit einer der Schienen zusammenwirkt.According to one embodiment of the invention, it may be provided that the synchronization wheel is rotatably mounted on the middle rail, preferably on a horizontal shaft. In this context, it may be advantageous if the synchronization wheel passes through the center rail at a recess, wherein the synchronization wheel on one side of the recess with the carriage and on the other side of the recess with one of the rails cooperates.

Bei einer konstruktiv einfachen Ausführung kann vorgesehen sein, dass das Synchronisationsrad als Zahnrad ausgebildet ist, welches einerseits mit einer Verzahnung des Laufwagens und andererseits mit einer Verzahnung einer Schiene kämmt. Das Zahnrad umfasst zwei Ritzelräder mit unterschiedlichem Durchmesser, wobei ein erstes Ritzelrad mit dem Laufwagen und ein zweites Ritzelrad mit einer Schiene kämmt, wobei das erste Ritzelrad auf einer Seite der Mittelschiene und das zweite Ritzelrad auf einer gegenüberliegenden, zweiten Seite der Mittelschiene gelagert sein kann. In Weiterbildung der Erfindung können die beiden Ritzelräder auf einer gemeinsamen, vorzugsweise horizontalen, Achse gelagert sein. Das erste und das zweite Ritzelrad sind drehfest miteinander verbunden, sodass bei einer Bewegung eines Ritzelrades auch das andere Ritzelrad mitbewegt.In a structurally simple embodiment can be provided that the synchronization is designed as a gear wheel, which meshes on the one hand with a toothing of the carriage and on the other hand with a toothing of a rail. The gear comprises two pinion gears of different diameter, wherein a first pinion gear meshes with the carriage and a second pinion gear with a rail, wherein the first pinion gear can be mounted on one side of the middle rail and the second pinion gear on an opposite, second side of the center rail. In a further development of the invention, the two pinion gears can be mounted on a common, preferably horizontal axis. The first and the second pinion gear are rotatably connected to each other, so that when moving a pinion gear and the other pinion gear moves.

Ein besonderer Vorteil der Erfindung liegt in der Möglichkeit, durch einen unterschiedlichen Durchmesser der Ritzelräder eine Übersetzung zwischen der Ladenschiene und der Mittelschiene herbeizuführen, um so auf die zurückzulegende Fahrweglänge dieser Schienen Einfluss zu nehmen. So ist es beispielsweise möglich, den Auszugsweg der Ladenschiene mit 55% und den Auszugsweg der Mittelschiene entsprechend mit 45% zu dimensionieren. Bei einer möglichen Ausgestaltung kann der Auszugsweg der Ladenschiene zwischen 50% und 60% und der Auszugsweg der Mittelschiene entsprechend zwischen 50% und 40% gewählt werden. Bei einer Schubladenausziehführung wird üblicherweise der untere Bereich (nämlich die Korpusschiene, die Mittelschiene sowie der zwischen diesen Schienen gelagerte Laufwagen) erheblich belastet. Durch eine durch die Übersetzung herbeigeführte Verkürzung der Fahrweglänge der Mittelschiene wird dieser belastete Bereich weniger bewegt, was insgesamt den Reibungswiderstand der Ausziehführung reduziert. Auch kann durch die geringere Auszugslänge der Mittelschiene auch der zwischen der Korpusschiene und der Mittelschiene gelagerte Laufwagen eine größere Längserstreckung aufweisen, wodurch günstigere Hebelverhältnisse und eine gleichmäßigere Kraftverteilung herbeigeführt werden können.A particular advantage of the invention lies in the possibility of bringing about a translation between the drawer rail and the center rail by means of a different diameter of the pinion wheels in order thus to influence the track length of these rails to be covered. So it is possible, for example, the Auszugsweg the drawer rail with 55% and the Auszugsweg the center rail accordingly with 45% to dimension. In one possible embodiment, the pull-out path of the drawer rail can be selected between 50% and 60% and the pull-out path of the middle rail can be selected accordingly between 50% and 40%. With a drawer pull-out guide, the lower area (namely the carcass rail, the middle rail and the carriage mounted between these rails) is usually subjected to considerable stress. Through a shortening of the track length of the middle rail caused by the translation, this loaded area is moved less, which reduces the overall frictional resistance of the pull-out guide. Also can by the shorter extension length of the middle rail and the bearing between the carcass rail and the center rail carriage have a greater longitudinal extent, whereby more favorable leverage ratios and a more uniform force distribution can be brought about.

Bei einem bevorzugten Ausführungsbeispiel der Erfindung kann vorgesehen sein, dass der zu synchronisierende Laufwagen zwischen der Korpusschiene und der Mittelschiene verschiebbar gelagert ist und dass das Synchronisationsrad mit der Ladenschiene zusammenwirkt. Auf diese Weise wird beim manuellen Bewegen der Schublade die Kraft von der Ladenschiene direkt in die Schienensteuerung eingeleitet, wobei der zwischen der Korpusschiene und der Mittelschiene gelagerte Laufwagen, die Mittelschiene und die Ladenschiene synchronisiert sind. Aufgrund der Tatsache, dass bei dieser Ausgestaltung die Ladenschiene zur Mittelschiene stets eine definierte Relativstellung einnimmt, kann sogar auf eine Synchronisierung des oberen Laufwagens (d.h. der zwischen der Mittelschiene und der Korpusschiene gelagerte Laufwagen) verzichtet werden. Selbstverständlich ist es jedoch auch möglich, zur Vermeidung und/oder Korrektur der Laufwagenfehler eine gemäß dem Stand der Technik bekannte Steuervorrichtung vorzusehen.In a preferred embodiment of the invention can be provided that the carriage to be synchronized between the carcass rail and the center rail is slidably mounted and that the synchronization wheel cooperates with the drawer rail. In this way, when the drawer is moved manually, the force is introduced from the drawer rail directly into the rail control, the carriage mounted between the carcass rail and the center rail, the center rail and the drawer rail being synchronized. Due to the fact that in this embodiment the drawer rail always assumes a defined relative position relative to the middle rail, it is even possible to dispense with a synchronization of the upper carriage (i.e., the carriage mounted between the middle rail and the carcass rail). Of course, it is also possible to provide a well-known prior art control device to avoid and / or correct the carriage error.

Der oder die zwischen den Schienen verfahrbaren Laufwagen weist bzw. weisen wenigstens einen oder mehrere Wälzkörper auf, die zur Übertragung der Last der Schublade vorgesehen sind. Der oder die Wälzkörper können Rollen, Kegel, zylindrische Walzen, Scheiben und/oder Kugeln umfassen.The or between the rails movable carriage has or have at least one or more rolling elements, which are provided for transmitting the load of the drawer. The rolling element or rollers may comprise rollers, cones, cylindrical rollers, discs and / or balls.

Das erfindungsgemäße Möbel weist wenigstens eine Schublade auf, die über eine Ausziehführung der in Rede stehenden Art relativ zu einem Möbelkorpus verfahrbar gelagert ist.The furniture according to the invention has at least one drawer which is movably mounted relative to a furniture body via a pull-out of the type in question.

Weitere Einzelheiten und Vorteile der vorliegenden Erfindung werden anhand der nachfolgenden Figurenbeschreibung erläutert. Dabei zeigt bzw. zeigen:

Fig. 1
eine perspektivische Darstellung eines Möbels mit Schubladen, welche über Schubladenausziehführungen relativ zu einem Möbelkorpus verfahrbar gelagert sind,
Fig. 2
die Schubladenausziehführung im Querschnitt,
Fig. 3
die Schubladenausziehführung in einer perspektivischen Schnittansicht,
Fig. 4a, 4b
Die Schubladenausziehführung in einer Draufsicht sowie eine vergrößerte Detaildarstellung hierzu,
Fig. 5
eine Explosionsdarstellung der Schubladenausziehführung, und
Fig. 6
die Schubladenausziehführung in einer teilweise aufgebrochenen perspektivischen Darstellung.
Further details and advantages of the present invention will be explained with reference to the following description of the figures. It shows or show:
Fig. 1
a perspective view of a piece of furniture with drawers, which are movably mounted on Schubladenausziehführungen relative to a furniture body,
Fig. 2
the drawer extension guide in cross section,
Fig. 3
the drawer extension guide in a perspective sectional view,
Fig. 4a, 4b
The drawer pull-out guide in a plan view and an enlarged detailed representation of this,
Fig. 5
an exploded view of the drawer pull-out, and
Fig. 6
the drawer extension guide in a partially broken perspective view.

Fig.1 zeigt eine perspektivische Darstellung eines Möbels 1, wobei Schubladen 3 über Schubladenausziehführungen 4 relativ zu einem Möbelkorpus 2 verfahrbar gelagert sind. Die Schubladenausziehführung 4 ist im gezeigten Ausführungsbeispiel als Vollauszug ausgebildet und weist eine am Möbelkorpus 2 zu befestigende Korpusschiene 5, eine relativ dazu verfahrbare Mittelschiene 6 und eine ausziehbare Ladenschiene 7 auf. Die Ladenschiene 7 ist jeweils mit einer der Schubladen 3 zu verbinden. Zwischen der Korpusschiene 5 und der Mittelschiene 6 ist zumindest ein erster verschiebbarer Laufwagen und zwischen der Mittelschiene 6 und der Ladenschiene zumindest ein zweiter verschiebbarer Laufwagen angeordnet, welche jedoch aus der dargestellten Figur nicht hervorgehen. Die Laufwagen weisen Wälzkörper zur Übertragung der Last der Schublade 3 auf. Durch eine erfindungsgemäße Synchronisierungsvorrichtung ist es möglich, Fehlbewegungen der Schienen 6, 7 und/oder Fehlbewegungen eines zwischen den Schienen 5, 6, 7 verschiebbar gelagerten Laufwagens zu verhindern. Fig.1 shows a perspective view of a piece of furniture 1, wherein drawers 3 are movably mounted on Schubladenausziehführungen 4 relative to a furniture body 2. The drawer pull-out guide 4 is formed in the embodiment shown as a full extension and has a body 2 to be fixed to the cabinet body rail 5, a movable relative to the middle rail 6 and an extendable drawer rail 7. The drawer rail 7 is in each case to be connected to one of the drawers 3. Between the carcass rail 5 and the middle rail 6, at least a first displaceable carriage and between the middle rail 6 and the drawer rail at least a second displaceable carriage are arranged, which, however, do not emerge from the figure shown. The carriages have rolling elements for transmitting the load of the drawer 3. By a synchronization device according to the invention, it is possible to prevent incorrect movement of the rails 6, 7 and / or incorrect movements of a slidably mounted between the rails 5, 6, 7 carriage.

Fig. 2 zeigt die Ausziehführung 4 im Querschnitt, wobei die am Möbelkorpus 2 zu befestigende Korpusschiene 5, die relativ dazu verschiebbare Mittelschiene 6 sowie die mit der Schublade 3 zu verbindende Ladenschiene 7 erkennbar ist. Zwischen der Korpusschiene 5 und der Mittelschiene 6 ist zumindest ein erster Laufwagen 8 verschiebbar gelagert, der einen Horizontalsteg der Korpusschiene 5 umgreift. Zwischen der Mittelschiene 6 und der Ladenschiene 7 ist wenigstens ein zweiter Laufwagen 9 verschiebbar gelagert. Der erste Laufwagen 8 weist Wälzkörper 8a, 8b und der zweite Laufwagen 9 weist wenigstens einen Wälzkörper 9a zur Übertragung der Last der Schublade 3 auf. Die Ausziehführung 4 weist zur Vermeidung von Fehlbewegungen der Schienen 5, 6, 7 und/oder der Laufwagen 8, 9 eine Synchronisierungsvorrichtung 10 mit einem Synchronisationsrad 11 auf, das zumindest eine der bewegbaren Schienen 6, 7 mit zumindest einem der beiden Laufwagen 8, 9 synchronisiert. Im gezeigten Ausführungsbeispiel wird eine Relativbewegung zwischen dem ersten (unteren) Laufwagen 8 und der Ladenschiene 9 synchronisiert. Bei der gezeigten Ausgestaltung ist es auch möglich, dass der obere Laufwagen 9 ungesteuert bleiben kann, da dieser durch die Zwangssteuerung der übrigen bewegten Bauteile kaum von seiner Sollposition abweicht und so eine Synchronisierung des oberen Laufwagens 9 nicht zwingend notwendig ist. Fig. 2 shows the pull-out guide 4 in cross section, wherein the furniture body 2 to be fastened to the carcass rail 5, the relatively displaceable center rail 6 and the drawer 3 to be connected to the drawer rail 7 can be seen. Between the carcass rail 5 and the middle rail 6 at least a first carriage 8 is slidably mounted, which engages around a horizontal web of the carcass rail 5. Between the middle rail 6 and the drawer rail 7 at least a second carriage 9 is slidably mounted. The first carriage 8 has rolling elements 8a, 8b and the second carriage 9 has at least one rolling element 9a for transmitting the load of the drawer 3. To avoid incorrect movements of the rails 5, 6, 7 and / or the carriages 8, 9, the pull-out guide 4 has a synchronization device 10 with a synchronization wheel 11, which has at least one of the movable rails 6, 7 with at least one of the two carriages 8, 9 synchronized. In the exemplary embodiment shown, a relative movement between the first (lower) carriage 8 and the drawer rail 9 is synchronized. In the embodiment shown, it is also possible that the upper carriage 9 can remain uncontrolled, since this hardly deviates from its nominal position by the positive control of the other moving components and so a synchronization of the upper carriage 9 is not absolutely necessary.

Das Synchronisationsrad 11 der Synchronisierungsvorrichtung 10 kann in Form eines Zahnrades ausgebildet werden, welches einerseits mit dem unteren Laufwagen 8, andererseits mit einer an der Ladenschiene 7 angeordneten oder ausgebildeten Lauffläche 12 - im vorliegenden Fall mit einer an der Ladenschiene 7 gelagerten Zahnleiste - kämmt. Das Zahnrad 11 ist im gezeigten Ausführungsbeispiel als doppelstufiges Zahnrad 11 mit Ritzelrädern 11 a und 11 b ausgebildet, welche einen unterschiedlichen Durchmesser aufweisen. Das kleinere Ritzelrad 11 a kämmt mit dem unteren Laufwagen 8, während das größere Ritzelrad 11 b mit der als Zahnleiste ausgebildeten Lauffläche 12 kämmt. Das Synchronisationsrad 11 ist an der Mittelschiene 6 drehbar gelagert und durchsetzt diese an einer an der Mittelschiene 6 vorhandenen Aussparung 13, sodass das kleinere Ritzelrad 11a auf einer Seite der Aussparung 13 mit dem Laufwagen 8 und das größere Ritzelrad 11 b auf der anderen Seite der Aussparung 13 mit der Zahnleiste 12 der Ladenschiene 7 zusammenwirkt. Die Ausziehführung weist zudem eine federunterstützte Einzugsvorrichtung 14 zum Einziehen der Schublade 3 in die geschlossene Endlage sowie eine Dämpfvorrichtung 15 auf, welche diese Einzugsbewegung der Schublade 3 im letzten Schließbereich bis hin zur vollständigen Schließstellung dämpft.The synchronization wheel 11 of the synchronization device 10 can be designed in the form of a toothed wheel which, on the one hand, meshes with the lower carriage 8, on the other hand with a running surface 12 arranged or formed on the drawer rail 7 - in the present case with a toothed rail mounted on the drawer rail 7. The gear 11 is formed in the illustrated embodiment as a double-stage gear 11 with pinion gears 11 a and 11 b, which have a different diameter. The smaller pinion gear 11 a meshes with the lower carriage 8, while the larger pinion gear 11 b meshes with the tread 12 formed as a rack. The Synchronisationsrad 11 is rotatably mounted on the center rail 6 and passes through them on a present at the middle rail 6 recess 13, so that the smaller pinion 11a on one side of the recess 13 with the carriage 8 and the larger pinion gear 11 b on the other side of the recess 13 cooperates with the rack 12 of the drawer rail 7. The pull-out guide also has a spring-assisted intake device 14 for pulling the drawer 3 into the closed end position and a damping device 15 which dampens this pull-in movement of the drawer 3 in the last closing region up to the fully closed position.

Fig. 3 zeigt einen Querschnitt der Schubladenausziehführung 4 in einer perspektivischen Darstellung, wobei sich die in Ausziehrichtung X verfahrbare Ladenschiene 7 in der vollständigen Offenstellung befindet. Im hinteren Endbereich weist die Ladenschiene 7 ein gemäß dem Stand der Technik bekanntes Lagerelement 17 auf, welches als Einschubbegrenzung der Schublade 3 bei deren Montage an der Schubladenausziehführung 4 sowie zur Lageverstellung des hinteren Bereiches der Schublade 3 vorgesehen ist, sodass das äußere Fugenbild der Schublade 3 einstellbar ist. An der Unterseite der Ladenschiene 7 ist eine Lauffläche 12 in Form einer Zahnleiste befestigt, welche sich in Ausziehrichtung X der Ladenschiene 7 ausgehend von deren hinteren Endbereich über mehr als die halbe Länge der Ladenschiene 7 erstrecken kann. An der Mittelschiene 6 ist ein Ritzelrad 11 b drehbar gelagert, welches mit der Zahnleiste 12 der Ladenschiene 7 kämmt. Das Ritzelrad 11 b ist an einer horizontalen Welle 18 gelagert, welche die Mittelschiene 6 durchsetzt. An der Welle 18 ist auch das kleinere Ritzelrad 11a gelagert, welches mit einer Zahnstange 19 des unteren Laufwagens 8 kämmt. Erkennbar ist auch der obere Laufwagen 9, der zwischen der Mittelschiene 9 und der Ladenschiene 7 verschiebbar gelagert ist sowie die an der Mittelschiene 6 drehbar gelagerte Stützrolle 16a. Fig. 3 shows a cross section of the drawer pull-4 in a perspective view, wherein the movable in the pull-out X drawer rail 7 is in the fully open position. In the rear end region, the drawer rail 7 has a known according to the prior art bearing element 17, which is provided as Einschubbegrenzung the drawer 3 when mounted on the drawer extension guide 4 and the position adjustment of the rear portion of the drawer 3, so that the outer joint pattern of the drawer. 3 is adjustable. At the bottom of the drawer rail 7, a tread 12 is fixed in the form of a rack, which in the pull-out direction X of the drawer rail 7, starting from the rear end portion over more than half the length of the drawer rail. 7 can extend. On the middle rail 6, a pinion gear 11 b is rotatably mounted, which meshes with the rack 12 of the drawer rail 7. The pinion gear 11 b is mounted on a horizontal shaft 18 which passes through the middle rail 6. On the shaft 18 and the smaller pinion gear 11a is mounted, which meshes with a rack 19 of the lower carriage 8. Visible is also the upper carriage 9, which is slidably mounted between the middle rail 9 and the drawer rail 7 and the rotatably mounted on the center rail 6 support roller 16a.

Fig. 4a zeigt die Ausziehführung 4 mit der Korpusschiene 5 und der in Ausziehrichtung X verschiebbaren Ladenschiene 7 in einer Draufsicht, Fig. 4b zeigt das in Fig. 4a markierte Detail in einer vergrößerten Darstellung, also einen Horizontalschnitt der Ausziehführung 4. Die Mittelschiene 6 weist Vertikalstege 6a und 6b auf, an dessen Außenseiten jeweils eine Stützrolle 16a, 16b drehbar an der Mittelschiene 6 gelagert ist. Das kleinere Ritzelrad 11 a kämmt mit der Verzahnung 19 des Laufwagens 8. Mit dem kleineren Ritzelrad 11 a ist über eine Welle 18 das größere Ritzelrad 11 b drehfest verbunden, welches mit der in Fig. 3 dargestellten Lauffläche 12 (Zahnleiste) der Ladenschiene 7 kämmt. Fig. 4a 1 shows the pull-out guide 4 with the carcass rail 5 and the drawer rail 7 which can be displaced in the pull-out direction X in a plan view, Fig. 4b shows that in Fig. 4a marked detail in an enlarged view, ie a horizontal section of the pull-out 4. The center rail 6 has vertical webs 6a and 6b, on whose outer sides in each case a support roller 16a, 16b is rotatably mounted on the center rail 6. The smaller pinion gear 11 a meshes with the teeth 19 of the carriage 8. With the smaller pinion gear 11 a is via a shaft 18, the larger pinion gear 11 b rotatably connected, which with the in Fig. 3 shown running surface 12 (rack) of the drawer rail 7 meshes.

Fig. 5 zeigt eine Explosionsdarstellung der Schubladenausziehführung 4. Zwischen der Korpusschiene 5 und der Mittelschiene 6 ist ein erster Laufwagen 8 mit lastübertragenden Wälzkörpern 8b verfahrbar gelagert. Zwischen der Mittelschiene 5 und der Ladenschiene 7 ist ein zweiter Laufwagen 9 mit lastübertragenden Wälzkörpern 9a verschiebbar gelagert. Die Mittelschiene 6 weist eine seitliche Aussparung 13 auf, die von der Welle 18 durchsetzt wird. An der Welle 18 ist ein Ritzelrad 11 angeordnet oder ausgebildet, welches mit der Verzahnung 19 des unteren Laufwagens 8 kämmt. Auf der Welle 18 ist auch das größere Ritzelrad 11 b gelagert, welches mit einer Lauffläche 12 der Ladenschiene 7 - im vorliegenden Fall mit einer Zahnleiste 12a - zusammenwirkt. Zum Einziehen der Ladenschiene 7 in die geschlossene Endlage ist eine Einzugsvorrichtung 14 mit einem federbeaufschlagten Mitnehmer 20 vorgesehen, der mit der Ladenschiene 7 lösbar koppelbar ist. Zum Dämpfen dieser Einzugsbewegung ist eine Dämpfvorrichtung 15 vorhanden, welche im gezeigten Ausführungsbeispiel als Fluiddämpfer mit einer Zylinder-Kolben-Einheit ausgebildet ist. Schließlich ist noch ein an der Korpusschiene 5 zu montierender Lagerbock 21 mit Stützrollen vorgesehen, an denen sich die Ladenschiene 7 abstützen kann. Fig. 5 shows an exploded view of the drawer extension guide 4. Between the carcass rail 5 and the middle rail 6, a first carriage 8 is mounted to be moved with load-transmitting rolling elements 8b. Between the middle rail 5 and the drawer rail 7, a second carriage 9 is slidably mounted with load-transmitting rolling elements 9a. The middle rail 6 has a lateral recess 13 which is penetrated by the shaft 18. On the shaft 18, a pinion gear 11 is arranged or formed, which meshes with the toothing 19 of the lower carriage 8. On the shaft 18 and the larger pinion gear 11 b is mounted, which cooperates with a tread 12 of the drawer rail 7 - in the present case with a rack 12a. For retracting the drawer rail 7 in the closed end position, a collection device 14 is provided with a spring-loaded driver 20 which is releasably coupled to the drawer rail 7. To damp this retraction movement, a damping device 15 is present, which is formed in the embodiment shown as a fluid damper with a cylinder-piston unit. Finally, a still to be mounted on the carcass rail 5 bearing block 21 is provided with support rollers on which the drawer rail 7 can be supported.

Fig. 6 zeigt eine teilweise aufgebrochene Darstellung mit vergrößerten Detaildarstellungen der Schubladenausziehführung 4, welche eine Korpusschiene 5, eine Mittelschiene 6 und eine Ladenschiene 7 aufweist. Gut erkennbar ist die an der Unterseite der Ladenschiene 7 angeordnete Zahnstange 12a. Die Zahnstange 12a ist von außen unsichtbar, wobei auch Verschmutzungen vermindert werden können. Das an der Welle 18 gelagerte Ritzelrad 11 b kann an der Zahnstange 12a ablaufen. Diese in das Ritzelrad 11 b einleitende Bewegung wird über die Welle 18 und das hier nicht ersichtliche Ritzelrad 11 a direkt in den unteren Laufwagen 8 eingeleitet. Im gezeigten Ausführungsbeispiel weisen beide Laufwagen 8, 9 jeweils eine Steuervorrichtung 22a und 22b auf, durch die durch der bzw. die Laufwagen 8, 9 bei einer allfälligen Fehlstellung an vorgegebenen Stellen vorübergehend an einer der Schienen 5, 6, 7 der Schubladenausziehführung 4 arretierbar ist. Diese Arretierung kann durch das Verfahren der Schienen 5, 6, 7 zueinander wieder gelöst werden, sodass die Laufwagen 8, 9 nach dem Lösen der Arretierung über die vorgegebenen Stellen hinweg in Richtung der Endstellungen der Laufwagen 8, 9 bewegbar ist. Eine Möglichkeit zur Behebung dieser Laufwagenfehlstellungen ist in der EP 1 393 654 B1 der Anmelderin beschrieben, sodass die nähere Funktionsweise dieser Steuervorrichtungen 22a, 22b an dieser Stelle nicht näher beschrieben werden muss. Fig. 6 shows a partially broken-away view with enlarged detail of the Drawerausziehführung 4, which has a carcass rail 5, a middle rail 6 and a drawer rail 7. Good recognizable is arranged on the underside of the drawer rail 7 rack 12a. The rack 12a is invisible from the outside, whereby dirt can be reduced. The mounted on the shaft 18 pinion 11 b can run on the rack 12 a. This in the pinion gear 11 b introductory movement is introduced via the shaft 18 and the pinion gear 11 a not shown here directly into the lower carriage 8. In the illustrated embodiment, both carriages 8, 9 each have a control device 22a and 22b, by the or by the carriage 8, 9 at a given misalignment at predetermined locations temporarily on one of the rails 5, 6, 7 of the drawer extension guide 4 can be locked , This locking can be achieved by the method of the rails 5, 6, 7 to each other again, so that the carriage 8, 9 after releasing the locking over the predetermined places away in the direction of the end positions of the carriage 8, 9 is movable. One way to remedy this misalignment is in the EP 1 393 654 B1 Described by the applicant, so that the closer functioning of these control devices 22a, 22b need not be described in detail at this point.

Die vorliegende Erfindung beschränkt sich nicht auf die gezeigten Ausführungsbeispiele, sondern umfasst bzw. erstreckt sich auf alle Varianten und technischen Äquivalente, die Reichweite der nachfolgenden Ansprüche fallen können. Auch sind die in der Beschreibung gewählten Lageangaben, wie zum Beispiel "oben", "unten", "seitlich", usw. auf die übliche Einbaulage der verwendeten Bauteile sowie auf die dargestellte Figur bezogen und sind bei einer Lageänderung sinngemäß auf die neue Lage zu übertragen.The present invention is not limited to the embodiments shown, but includes and extends to all variants and technical equivalents that may fall within the scope of the following claims. Also, the position information selected in the description, such as "top", "bottom", "side", etc. based on the usual installation position of the components used as well as on the figure and are in a change in position mutatis mutandis to the new situation transfer.

Claims (8)

  1. An extension guide (4) for drawers (3), including:
    - a carcass rail (5) to be fixed to a furniture carcass (2),
    - a drawer rail (7) to be fixed to the drawer (3),
    - a central rail (6) mounted movably between the carcass rail (5) and the drawer rail (7),
    - at least one running carriage (8, 9) mounted displaceably between at least two rails (5, 6, 7) of the extension guide (4),
    - a synchronization device (10) for preventing running faults of the extension guide (4),
    - wherein the synchronization device (10) includes at least one synchronization wheel (11), wherein the synchronization wheel (11) is formed of a gear having two pinion wheels (11 a, 11 b) of a different diameter, wherein a first pinion wheel (11 a) interacts with the at least one running carriage (8) and the second pinion wheel (11 b) interacts with a running surface (12) arranged on one of the rails (5, 6, 7), wherein the first pinion wheel (11a) and the second pinion wheel (11 b) are connected together in a torque-proof manner and wherein upon a movement of one pinion wheel (11 a, 11 b), also the other pinion wheel (11 a, 11 b) moves therewith,
    characterized in that the first pinion wheel (11 a) only meshes with a toothed rack (19) connected to the running carriage (8) and the second pinion wheel (11 b) only meshes with a running surface (12) in the form of a toothed bar (12a) of the rails (5, 6, 7), so that by way of the pinion wheels (11 a, 11 b), a direct coupling between that rail (5, 6, 7), on which the running surface (12) in the form of the toothed bar (12a) is arranged, and that running carriage (8), which is connected to the toothed rack (19), is effected.
  2. The extension guide according to claim 1, characterized in that the synchronization wheel (11) is arranged on the central rail (6).
  3. The extension guide according to claim 1 or 2, characterized in that the synchronization wheel (11) is rotatably mounted to a horizontal shaft (18).
  4. The extension guide according to one of the claims 1 to 3, characterized in that the synchronization wheel (11) passes through an opening (13) of the central rail (6), wherein the synchronization wheel (11) interacts on one side of the opening (13) with the running carriage (8) and on the other side of the opening (13) with the running surface (12) of a rail (5, 6, 7).
  5. The extension guide according to one of the claims 1 to 4, characterized in that the first pinion wheel (11 a) and the second pinion wheel (11 b) are mounted on a common shaft (18).
  6. The extension guide according to one of the claims 1 to 5, characterized in that the running carriage (8) is mounted displaceably between the carcass rail (5) and the central rail (6).
  7. The extension guide according to one of the claims 1 to 6, characterized in that the running surface (12) in the form of the toothed bar (12a) is formed or arranged on the drawer rail (7).
  8. An article of furniture with at least one drawer which is displaceably mounted relative to a furniture carcass by way of an extension guide according to one of the claims 1 to 7.
EP11707554.9A 2010-02-25 2011-02-07 Pull-out guide for drawers Active EP2538818B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA288/2010A AT509540B1 (en) 2010-02-25 2010-02-25 EXTRACTION GUIDE FOR DRAWERS
PCT/AT2011/000068 WO2011103605A1 (en) 2010-02-25 2011-02-07 Pull-out guide for drawers

Publications (2)

Publication Number Publication Date
EP2538818A1 EP2538818A1 (en) 2013-01-02
EP2538818B1 true EP2538818B1 (en) 2017-08-23

Family

ID=43904036

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11707554.9A Active EP2538818B1 (en) 2010-02-25 2011-02-07 Pull-out guide for drawers

Country Status (9)

Country Link
US (1) US9661926B2 (en)
EP (1) EP2538818B1 (en)
JP (1) JP5902104B2 (en)
CN (1) CN102770047B (en)
AT (1) AT509540B1 (en)
ES (1) ES2649051T3 (en)
MY (1) MY164851A (en)
TW (1) TWI487495B (en)
WO (1) WO2011103605A1 (en)

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Also Published As

Publication number Publication date
AT509540A1 (en) 2011-09-15
EP2538818A1 (en) 2013-01-02
US9661926B2 (en) 2017-05-30
AT509540B1 (en) 2012-05-15
MY164851A (en) 2018-01-30
CN102770047A (en) 2012-11-07
CN102770047B (en) 2015-01-21
TW201138678A (en) 2011-11-16
WO2011103605A1 (en) 2011-09-01
JP2013520246A (en) 2013-06-06
TWI487495B (en) 2015-06-11
US20130002115A1 (en) 2013-01-03
JP5902104B2 (en) 2016-04-13
ES2649051T3 (en) 2018-01-09

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