EP2424421B1 - Apparatus for adjusting the height of a counter which is guided in a household device by way of at least one pull-out guide - Google Patents

Apparatus for adjusting the height of a counter which is guided in a household device by way of at least one pull-out guide Download PDF

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Publication number
EP2424421B1
EP2424421B1 EP10714881.9A EP10714881A EP2424421B1 EP 2424421 B1 EP2424421 B1 EP 2424421B1 EP 10714881 A EP10714881 A EP 10714881A EP 2424421 B1 EP2424421 B1 EP 2424421B1
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EP
European Patent Office
Prior art keywords
arms
guide
side wall
energy storage
height adjustment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10714881.9A
Other languages
German (de)
French (fr)
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EP2424421A2 (en
Inventor
Oscar Garcia
Eqaut Arriaga
Ilker Lopetegi
Mikel Azkue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Paul Hettich GmbH and Co KG
Original Assignee
Paul Hettich GmbH and Co KG
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Application filed by Paul Hettich GmbH and Co KG filed Critical Paul Hettich GmbH and Co KG
Priority to PL10714881T priority Critical patent/PL2424421T3/en
Publication of EP2424421A2 publication Critical patent/EP2424421A2/en
Application granted granted Critical
Publication of EP2424421B1 publication Critical patent/EP2424421B1/en
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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/50Racks ; Baskets
    • A47L15/506Arrangements for lifting racks for loading or unloading purposes
    • 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
    • A47B46/00Cabinets, racks or shelf units, having one or more surfaces adapted to be brought into position for use by extending or pivoting
    • A47B46/005Cabinets, racks or shelf units, having one or more surfaces adapted to be brought into position for use by extending or pivoting by displacement in a vertical plane; by rotating about a horizontal axis
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/50Racks ; Baskets
    • A47L15/507Arrangements for extracting racks, e.g. roller supports
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/16Shelves, racks or trays inside ovens; Supports therefor
    • F24C15/168Shelves, racks or trays inside ovens; Supports therefor with telescopic rail systems

Definitions

  • the present invention relates to a device for height adjustment of at least one guided in a household appliance via at least one pullout guide tray according to the preamble of claim 1.
  • Such household appliances are usually on the floor of a room, so that a user is forced to load or unload the tray to stoop and thus burden his back muscles and spine in not insignificant extent.
  • a height adjustment mechanism for a basket of a dishwasher in which on the side walls of the washing chamber connected to the basket via guide rails pivotable arms are fixed, with which the basket can be raised from a lower position in the washing chamber in an upper position.
  • the lifting movement is assisted by a spring element which acts between one of the side walls and a stabilizing web connecting the arms to each other.
  • Object of the present invention is therefore to further develop a device for adjusting the height of a guided in a household appliance via at least one pullout guide tray so that the most accurate possible guidance of the lifting or lowering movement of the height adjustment mechanism is possible.
  • an energy store can be fixed to at least one of the opposite side walls of the household appliance, which is in operative connection with one of the fixed arms of a height adjustment mechanism on a side wall, that by the energy stored in the energy storage an increase or decrease in the Storage is supportable and in which the arms and the energy storage of the height adjustment mechanism are fixed to at least one of the opposite side walls of the household appliance with a first end to a side wall bracket, according to the invention on the side wall of the household appliance side facing away from the side wall mount a guide provided in the one from a head piece of the arms projecting guide element is feasible.
  • the energy storage is designed as a tension spring.
  • a tension spring is a very cost-effective way to support the increase or decrease of the shelf.
  • a locking element is provided in at least one end region of the guide, with which the arm and thus the entire height adjustment mechanism can be locked in an end position.
  • This end position may on the one hand be a position in which the filing is located completely in the household appliance or in which the filing has reached its raised end position.
  • the energy storage is horizontally adjustable fixed to the side wall of the household appliance.
  • a groove is provided in the retaining plates, in which the energy storage is horizontally adjustable latched.
  • top, bottom, left, right, front, back, etc. refer exclusively to the example representation and position of the device and other parts selected in the respective figures. These terms are not intended to be limiting, that is to say that different references or mirror-symmetrical design or the like may alter these references.
  • the FIG. 1 shows a first embodiment of a device according to the invention for height adjustment of a guided in a household appliance via a pullout guide tray.
  • the tray not shown in this figure is, viewed in the extension direction A, left and right on the rails 3 placed, worn or connected to them, which are deductible on respective guide rails in the extension direction A.
  • the FIG. 3 perpendicular to the extension direction A, a rail holder 7 is fixed to each of the guide rails 2, are rotatably arranged at the two arms 5 and 6 with a second end by means of bolts 10, the first end is rotatably mounted on a side wall bracket 4 by means of bolts 10.
  • Each of the side wall brackets 4 can be fastened to opposite side walls 21, 27 of the household appliance (not shown here).
  • the arms 5 and 6 may also be fixed directly to the side walls 21, 27 of the household appliance and directly to the respective guide rail 2.
  • the determination of the arms 5, 6 both on the side walls 21, 27 and the side wall bracket 4 and on the guide rails 2 and the rail bracket 7 is such that the arms 5, 6 are parallel to the plane of the side walls 21, 27 rotatable ,
  • the two arms 5, 6 on each of the side walls 21, 27 are arranged parallel to each other at a distance from each other.
  • the distances of the pivot points on the arm 5 are equal to that of the arm 6.
  • For further stabilization of the arms 5, 6 is about halfway along the arms 5, 6 rotatably a transverse strut 9 on the arms 5, 6 parallel to the pivot points at the end of the arms 5, 6 set.
  • a arm 6 is angled perpendicular to the main longitudinal axis of the arm 6. At the top of this angled end, the two arms 6 are arranged rotationally rigidly on a transverse strut 15, which synchronizes the left and right sides.
  • an energy storage 8 which is designed here as a tension spring, attached next to the arms 5, 6.
  • the tension spring is suspended on a vertically projecting from the side wall bracket 4 bolt 13.
  • the other end of the tension spring is mounted on a similar bolt 13 which protrudes perpendicularly from a head piece 22 of the rear arm 6 in the extension direction.
  • this head piece 22 has approximately the shape of a right-angled triangle, wherein one of the triangles is formed as an extension of the longitudinal axis of the arm 6, while the other is perpendicular to the longitudinal axis of the arm 6 in the extension direction A of the arm 6 protrudes.
  • the arm 6 is rotatably mounted in the region of the extension of the longitudinal axis forming acute angle to the side wall bracket 4, while the tension spring retaining pin 13 is disposed in the region of the other acute angle of the head piece 22.
  • the arrangement of both bolts 13 is placed so that an imaginary connecting straight line is below the pivot point of the arm 6.
  • FIG. 2 shows a further embodiment of a height adjustment mechanism 1 'according to the invention.
  • This height adjustment mechanism has modified side wall brackets 4 'for receiving a plurality of pullout guides 20, thus multiple shelves 18 can be moved with this system.
  • the Figures 5-7 show a first household appliance with a mounted therein embodiment of a device for height adjustment.
  • the household appliance for example, a baking oven with a tray 18 designed as a shelf 18, as in the Figures 5-7 shown or a dishwasher with a designed as a dish rack 19 tray 18, as shown in the Figures 8-10 is shown to be.
  • the height adjustment mechanism 1 each in a starting position in which the tray 18 is still fully retracted behind a front door 17 in the household appliance.
  • the two arms 5, 6 of the height adjustment mechanism 1 are in this position of the tray 18 vertically and parallel spaced from one another.
  • the tension spring 8 is maximally tensioned in this position and its central axis is below the pivot point of the arm. 6
  • the tray 18, which is connected to the rails 3 of the pullout guide 20, 20 ', in the extension direction A on the guide rails 2, 2' are pulled out of the household appliance.
  • Such a position of the tray 18 is in FIG. 9 shown.
  • After reaching the end stop further removal of the tray 18 from the household appliance is already an increase of the tray 18 by means of the height adjustment mechanism 1.
  • Such a position is in FIG. 6 shown.
  • the arms 5, 6 are already rotated by an angle from their vertical starting position in a clockwise direction. By rotating the arm 6, the central axis moves over the pivot point of the arm 6 on the side wall mount 4, then the tension spring supports the lifting.
  • the tray 18 has reached its raised end position.
  • the arms 5, 6 are horizontal or at least almost horizontal.
  • the tension spring is almost relaxed in this position. In this position of the tray 18 a comfortable loading or unloading of the tray 18 is made possible by a user.
  • This locking mechanism essentially consists of a locking element 12, which is provided in an end region of the guide 11.
  • the guide 11 is preferably formed as a circular arc-shaped guide, wherein the head piece 22 of the extension direction rear arm 6 is fixed to a position of the circle center of the circular arc-shaped guide groove 11 on the side wall bracket 4.
  • the locking element 12 is preferably designed as a bolt which is inserted into a guide groove 26 of a guide member and automatically latched.
  • This guide element 26 protrudes from a head piece 22 of the rear arm 6 in the extension direction A and protrudes into the guide 11, which is recessed on the side wall bracket 4 facing away from the side wall 21, 27 of the domestic appliance.
  • the head piece 22 has a recess 25 for space-saving accommodation of the guide element 26 in this area.
  • an unlocking element 24 is provided, with which the latching can be canceled again.
  • the height adjustment mechanism 1 is arranged so that even a second crockery basket 19 which is pulled out of the dishwasher via a pullout guide 20 ', in such a household appliance can be accommodated without affecting the ability to lift the lower tray 18 in their function ,
  • a groove 14 is provided on the side wall bracket 4 in a particular embodiment, in which the tension spring retaining pin 13 is latched horizontally adjustable.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drawers Of Furniture (AREA)
  • Casings For Electric Apparatus (AREA)

Description

Die vorliegende Erfindung betrifft eine Vorrichtung zur Höhenverstellung mindestens einer in einem Haushaltsgerät über mindestens eine Auszugsführung geführten Ablage gemäß dem Oberbegriff des Anspruchs 1.The present invention relates to a device for height adjustment of at least one guided in a household appliance via at least one pullout guide tray according to the preamble of claim 1.

Bei herkömmlichen Haushaltsgeräten, die eine Ablage aufweisen, die über mindestens eine Auszugsführung geführt ist, beispielsweise ein Geschirrspüler, bei dem ein Geschirrkorb über mindestens eine Auszugsführung geführt ist oder einem Backofen, bei dem ein Gargutträger über mindestens eine Auszugsführung geführt ist, sind diese Ablagen nur in einer horizontalen Ebene aus dem Haushaltsgerät heraus oder in das Haushaltsgerät hinein verschiebbar.In conventional household appliances, which have a shelf, which is guided over at least one pullout guide, such as a dishwasher, in which a crockery basket is guided over at least one pullout guide or a baking oven, in which a food support is guided over at least one pullout guide, these shelves are only in a horizontal plane out of the household appliance or in the household appliance slidable.

Solche Haushaltsgeräte stehen üblicherweise auf dem Boden eines Raumes, so dass ein Benutzer zur Beladung bzw. Entladung der Ablage dazu gezwungen ist, sich zu bücken und somit seine Rückenmuskulatur und Wirbelsäule in nicht unerheblichem Maße zu belasten.Such household appliances are usually on the floor of a room, so that a user is forced to load or unload the tray to stoop and thus burden his back muscles and spine in not insignificant extent.

Aus dem Stand der Technik sind Vorrichtungen zur Höhenverstellung solcher Ablagen eines Haushaltsgeräts bekannt, bei denen die Ablagen mit Hilfe eines Antriebs, insbesondere eines Riemenantriebs anhebbar sind, was mit zusätzlichen Kosten für den Antrieb und dessen Installation einhergeht. Alternative Vorrichtungen ohne zusätzlichen Antrieb müssen manuell mit großem Kraftaufwand durch einen Benutzer angehoben werden.Devices for adjusting the height of such shelves of a household appliance are known from the prior art, in which the shelves by means of a drive, in particular a belt drive can be raised, which is associated with additional costs for the drive and its installation. Alternative devices without additional drive must be manually raised with great effort by a user.

In der US 2008/0129168 A1 wird eine Höhenverstellmechanik für eine Korb einer Spülmaschine beschrieben, bei der an den Seitenwänden der Spülkammer mit dem Korb über Führungsschienen verbunden schwenkbare Arme befestigt sind, mit denen der Korb von einer unteren Position in der Spülkammer in eine obere Position anhebbar ist. Die Anhebebewegung wird dabei durch ein Federelement unterstützt, das zwischen einer der Seitenwände und einem die Arme miteinander verbindenden Stabilisierungssteg wirkt.In the US 2008/0129168 A1 a height adjustment mechanism for a basket of a dishwasher is described in which on the side walls of the washing chamber connected to the basket via guide rails pivotable arms are fixed, with which the basket can be raised from a lower position in the washing chamber in an upper position. The lifting movement is assisted by a spring element which acts between one of the side walls and a stabilizing web connecting the arms to each other.

Aufgabe der vorliegenden Erfindung ist es daher, eine Vorrichtung zur Höhenverstellung einer in einem Haushaltsgerät über mindestens eine Auszugsführung geführten Ablage derart weiter zu entwickeln, dass eine möglichst exakte Führung der Anhebe- bzw. Absenkbewegung der Höhenverstellmechanik ermöglicht ist.Object of the present invention is therefore to further develop a device for adjusting the height of a guided in a household appliance via at least one pullout guide tray so that the most accurate possible guidance of the lifting or lowering movement of the height adjustment mechanism is possible.

Diese Aufgabe wird durch eine Vorrichtung zur Höhenverstellung einer in einem Haushaltsgerät über eine Auszugsführung geführten Ablage mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a device for height adjustment of a guided in a household appliance via a pullout guide tray with the features of claim 1.

Bei der Vorrichtung, bei der an mindestens einer der gegenüber liegenden Seitenwände des Haushaltsgeräts ein Energiespeicher festlegbar ist, der derart in Wirkverbindung mit einem der an einer Seitenwand festgelegten Arme einer Höhenverstellmechanik steht, dass durch die in dem Energiespeicher gespeicherte Energie eine Anhebung bzw. Absenkung der Ablage unterstützbar ist und bei der die Arme und der Energiespeicher der Höhenverstellmechanik an mindestens einer der gegenüberliegenden Seitenwände des Haushaltsgerätes mit einem ersten Ende an einer Seitenwandhalterung festgelegt sind, ist erfindungsgemäß auf der der Seitenwand des Haushaltsgerätes abgewandten Seite der Seitenwandhalterung eine Führung vorgesehen, in der ein aus einem Kopfstück eines der Arme hervorstehendes Führungselement führbar ist. Diese Lösung zeichnet sich durch ein sehr gutes Kosten- /Nutzenverhältnis aus, da zum einen kein Kostenund zeitaufwändig zu installierender Antrieb notwendig ist und der Energiespeicher die durch einen Benutzer herbeigeführte Verstellung der Ablage kraftsparend unterstützt. Durch die Führung, in der ein aus einem Kopfstück eines der Arme hervorstehendes Führungselement führbar ist, ist eine exakte Führung der Arme und damit der gesamten Anhebe- bzw. Absenkbewegung der Höhenverstellmechanik ermöglicht.In the device in which an energy store can be fixed to at least one of the opposite side walls of the household appliance, which is in operative connection with one of the fixed arms of a height adjustment mechanism on a side wall, that by the energy stored in the energy storage an increase or decrease in the Storage is supportable and in which the arms and the energy storage of the height adjustment mechanism are fixed to at least one of the opposite side walls of the household appliance with a first end to a side wall bracket, according to the invention on the side wall of the household appliance side facing away from the side wall mount a guide provided in the one from a head piece of the arms projecting guide element is feasible. This solution is characterized by a very good cost-benefit ratio, since on the one hand no cost and time-consuming to install the drive is necessary and the energy storage supports the induced by a user adjustment of the shelf energy-saving. By the leadership in which a protruding from a head of one of the arms guide element is feasible, an exact guidance of the arms and thus the entire lifting or lowering movement of the height adjustment mechanism is possible.

Vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous developments of the invention are the subject of the dependent claims.

In einer Ausführungsvariante ist der Energiespeicher als Zugfeder ausgebildet. Eine solche Zugfeder stellt eine sehr kostengünstige Möglichkeit dar, die Anhebung bzw. Absenkung der Ablage zu unterstützen.In one embodiment, the energy storage is designed as a tension spring. Such a tension spring is a very cost-effective way to support the increase or decrease of the shelf.

In einer weiteren Ausführungsvariante ist in mindestens einem Endbereich der Führung ein Arretierelement vorgesehen, mit dem der Arm und damit die gesamte Höhenverstellmechanik in einer Endposition arretierbar ist. Bei dieser Endposition kann es sich zum Einen um eine Position handeln, bei der die Ablage sich vollständig in dem Haushaltsgerät befindet oder bei der die Ablage ihre angehobene Endstellung erreicht hat. Mit einem solchen Arretierelement kann beispielsweise ein plötzliches Absacken der Ablage wirksam verhindert werden.In a further embodiment, a locking element is provided in at least one end region of the guide, with which the arm and thus the entire height adjustment mechanism can be locked in an end position. This end position may on the one hand be a position in which the filing is located completely in the household appliance or in which the filing has reached its raised end position. With such a locking element, for example, a sudden sagging of the tray can be effectively prevented.

Gemäß einer weiteren Ausführungsvariante ist der Energiespeicher horizontal verstellbar an der Seitenwand des Haushaltsgeräts festlegbar. Insbesondere ist dazu in den Halteblechen eine Nut vorgesehen, in der der Energiespeicher horizontal verstellbar verrastbar ist. Mit einer solchen Verstellmöglichkeit ist die die Anhebe- bzw. Absenkbewegung der Höhenverstellmechanik unterstützende Kraft in einfacher Weise den örtlichen Gegebenheiten anpassbar.According to a further embodiment of the energy storage is horizontally adjustable fixed to the side wall of the household appliance. In particular, a groove is provided in the retaining plates, in which the energy storage is horizontally adjustable latched. With such an adjustment, the force supporting the raising or lowering movement of the height adjustment mechanism can be easily adapted to the local conditions.

Ausführungsbeispiele der Erfindung sind nachfolgend anhand der beigefügten Zeichnungen näher beschrieben. Es zeigen:

Figur 1
eine schematische perspektivische Darstellung eines Ausführungsbeispiels einer Höhenverstellmechanik,
Figur 2
eine schematische perspektivische Darstellung eines weiteren Ausführungsbeispiels einer Höhenverstellmechanik
Figur 3
eine schematische perspektivische Darstellung eines Ausführungsbeispiels einer Höhenverstellmechanik gemäß Figur 1
Figur 4
eine Detailansicht der Verbindung zwischen Armen, Halteblech und Seitenwand eines Haushaltsgeräts in einer Schnittansicht,
Figuren 5-7
eine schematische perspektivische Darstellung eines Backofens mit darin eingebauter Höhenverstellmechanik in unterschiedlichen Positionen der Höhenverstellmechanik,
Figuren 8-10
eine schematische perspektivische Darstellung einer in einer Spülmaschine eingebaute Höhenverstellmechanik und
Figuren 11-13
schematische perspektivische Detailansichten des Halteblechs der Höhenverstellmechanik mit Führung, Energiespeicher und Arretierelement.
Embodiments of the invention are described below with reference to the accompanying drawings. Show it:
FIG. 1
a schematic perspective view of an embodiment of a height adjustment mechanism,
FIG. 2
a schematic perspective view of another embodiment of a height adjustment mechanism
FIG. 3
a schematic perspective view of an embodiment of a height adjustment mechanism according to FIG. 1
FIG. 4
a detailed view of the connection between arms, retaining plate and side wall of a household appliance in a sectional view,
Figures 5-7
a schematic perspective view of an oven with built-height adjustment mechanism in different positions of the height adjustment mechanism,
Figures 8-10
a schematic perspective view of a built-in dishwasher height adjustment mechanism and
FIGS. 11-13
schematic perspective detailed views of the retaining plate of the height adjustment mechanism with guide, energy storage and locking element.

In der nachfolgenden Figurenbeschreibung beziehen sich Begriffe wie oben, unten, links, rechts, vorne, hinten usw. ausschließlich auf die in den jeweiligen Figuren gewählte beispielhafte Darstellung und Position der Vorrichtung und anderer Teile. Diese Begriffe sind nicht einschränkend zu verstehen, das heißt, durch verschiedene Arbeitsstellungen oder spiegelsymmetrische Auslegung oder dergleichen können sich diese Bezüge ändern.In the following description of the figures, terms such as top, bottom, left, right, front, back, etc. refer exclusively to the example representation and position of the device and other parts selected in the respective figures. These terms are not intended to be limiting, that is to say that different references or mirror-symmetrical design or the like may alter these references.

Die Figur 1 zeigt ein erstes Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung zur Höhenverstellung einer in einem Haushaltsgerät über eine Auszugsführung geführten Ablage. Die in dieser Figur nicht gezeigte Ablage ist dabei, in Auszugsrichtung A betrachtet, links und rechts auf die Laufschienen 3 aufgelegt, getragen oder mit ihnen verbunden, die auf jeweiligen Führungsschienen in Auszugsrichtung A abziehbar sind. Die Figur 3 zeigt eine Höhenverstellmechanik 1 mit einer Ablage in Form eines Gargutträgers 29. Senkrecht zur Auszugsrichtung A ist an jeder der Führungsschienen 2 eine Schienenhalterung 7 festgelegt, an der jeweils zwei Arme 5 und 6 mit einem zweiten Ende mittels Bolzen 10 drehbar angeordnet sind, deren erstes Ende an einer Seitenwandhalterung 4 mittels Bolzen 10 drehbar befestigt ist. Jede der Seitenwandhalterungen 4 ist an hier nicht gezeigten gegenüber liegenden Seitenwänden 21, 27 des Haushaltsgeräts befestigbar. Alternativ können die Arme 5 und 6 auch direkt an den Seitenwänden 21, 27 des Haushaltsgeräts sowie direkt an der jeweiligen Führungsschiene 2 festgelegt sein. Die Festlegung der Arme 5, 6 sowohl an den Seitenwänden 21, 27 bzw. der Seitenwandhalterung 4 als auch an den Führungsschienen 2 bzw. der Schienenhalterung 7 ist dabei dergestalt, dass die Arme 5, 6 parallel zur Ebene der Seitenwände 21, 27 drehbar sind. Die beiden Arme 5, 6 an jeder der Seitenwände 21, 27sind dabei parallel zueinander beabstandet angeordnet. Die Abstände der Drehpunkte am Arm 5 sind gleich der des Armes 6. Zur weiteren Stabilisierung der Arme 5, 6 ist etwa auf halber Länge der Arme 5, 6 drehbar eine Querstrebe 9 an den Armen 5, 6 parallel zu den Drehpunkten am Ende der Arme 5, 6 festgelegt. Das an der Schienenhalterung 7 festgelegte Ende des in Auszugsrichtung A hinteren Arms 6 ist rechtwinklig zur Hauptlängsachse des Armes 6 abgewinkelt. An der Spitze dieses abgewinkelten Endes sind die beiden Arme 6 an einer Querstrebe 15 drehstarr angeordnet, die die linke und rechte Seite synchronisiert.The FIG. 1 shows a first embodiment of a device according to the invention for height adjustment of a guided in a household appliance via a pullout guide tray. The tray, not shown in this figure is, viewed in the extension direction A, left and right on the rails 3 placed, worn or connected to them, which are deductible on respective guide rails in the extension direction A. The FIG. 3 perpendicular to the extension direction A, a rail holder 7 is fixed to each of the guide rails 2, are rotatably arranged at the two arms 5 and 6 with a second end by means of bolts 10, the first end is rotatably mounted on a side wall bracket 4 by means of bolts 10. Each of the side wall brackets 4 can be fastened to opposite side walls 21, 27 of the household appliance (not shown here). Alternatively, the arms 5 and 6 may also be fixed directly to the side walls 21, 27 of the household appliance and directly to the respective guide rail 2. The determination of the arms 5, 6 both on the side walls 21, 27 and the side wall bracket 4 and on the guide rails 2 and the rail bracket 7 is such that the arms 5, 6 are parallel to the plane of the side walls 21, 27 rotatable , The two arms 5, 6 on each of the side walls 21, 27 are arranged parallel to each other at a distance from each other. The distances of the pivot points on the arm 5 are equal to that of the arm 6. For further stabilization of the arms 5, 6 is about halfway along the arms 5, 6 rotatably a transverse strut 9 on the arms 5, 6 parallel to the pivot points at the end of the arms 5, 6 set. The fixed to the rail bracket 7 end of the rear in the extension direction A arm 6 is angled perpendicular to the main longitudinal axis of the arm 6. At the top of this angled end, the two arms 6 are arranged rotationally rigidly on a transverse strut 15, which synchronizes the left and right sides.

An der hier als Halteblech ausgebildeten Seitenwandhalterung 4 ist neben den Armen 5, 6 eine Energiespeicher 8, der hier als Zugfeder ausgebildet ist, befestigt. Die Zugfeder ist dabei an einem senkrecht aus der Seitenwandhalterung 4 hervorstehenden Bolzen 13 aufgehängt. Das andere Ende der Zugfeder ist an einem ebensolchen Bolzen 13 eingehängt, der senkrecht aus einem Kopfstück 22 des in Auszugsrichtung A hinteren Armes 6 hervorsteht. Dieses Kopfstück 22 hat in der hier gezeigten Ausführungsvariante eine etwa die Gestalt eines rechtwinkligen Dreiecks, wobei die eine Kathete des Dreiecks als Verlängerung der Längsachse des Arms 6 ausgebildet ist, während die andere Kathete senkrecht zur Längsachse des Arms 6 in Auszugsrichtung A von dem Arm 6 absteht. Der Arm 6 ist dabei im Bereich des die Verlängerung der Längsachse ausbildenden spitzen Winkel an der Seitenwandhalterung 4 drehbar befestigt, während der die Zugfeder haltende Bolzen 13 im Bereich des anderen spitzen Winkels des Kopfstücks 22 angeordnet ist. Die Anordnung beider Bolzen 13 ist so gelegt, dass eine gedachte verbindende Gerade unterhalb des Drehpunktes des Armes 6 liegt.At the here formed as a holding plate side wall bracket 4, an energy storage 8, which is designed here as a tension spring, attached next to the arms 5, 6. The tension spring is suspended on a vertically projecting from the side wall bracket 4 bolt 13. The other end of the tension spring is mounted on a similar bolt 13 which protrudes perpendicularly from a head piece 22 of the rear arm 6 in the extension direction. In the embodiment shown here, this head piece 22 has approximately the shape of a right-angled triangle, wherein one of the triangles is formed as an extension of the longitudinal axis of the arm 6, while the other is perpendicular to the longitudinal axis of the arm 6 in the extension direction A of the arm 6 protrudes. The arm 6 is rotatably mounted in the region of the extension of the longitudinal axis forming acute angle to the side wall bracket 4, while the tension spring retaining pin 13 is disposed in the region of the other acute angle of the head piece 22. The arrangement of both bolts 13 is placed so that an imaginary connecting straight line is below the pivot point of the arm 6.

Die drehbare Festlegung der Arme 5, 6 und der Querstreben 9 an der Seitenwandhalterung 4, der Schienenhalterung 7 bzw. der Arme 5, 6 selbst erfolgt über Bolzen 10, von denen einer zur Veranschaulichung in Figur 4 als Schnittdarstellung gezeigt ist. Wie in Figur 4 zu erkennen ist, weist der Bolzen 10 einen Nietkopf 16 auf, der eine angesenkte Bohrung in der Seitenwandhalterung 4 hintergreift. Es sind auch andere axiale Sicherungen des Bolzens 10 denkbar. Das Halsstück des Bolzens 10 durchtritt dabei eine Bohrung in den Enden der jeweiligen Arme 5,6, In gleicher Weise ist ebenso eine Festlegung der Arme 5 ,6 direkt an den Seitenwänden des Haushaltsgeräts denkbar. Um eine spielfreie Drehbarkeit zu gewährleisten, wurde eine elastische Zwischenlage 28 eingebracht.The rotatable fixing of the arms 5, 6 and the cross braces 9 on the side wall bracket 4, the rail bracket 7 and the arms 5, 6 itself via bolts 10, one of which is for illustration in FIG FIG. 4 is shown as a sectional view. As in FIG. 4 can be seen, the bolt 10 has a rivet head 16 which engages behind a countersunk bore in the side wall bracket 4. There are also other axial securing the bolt 10 is conceivable. The neck portion of the bolt 10 passes through a hole in the ends of the respective arms 5,6, In the same way, a determination of the arms 5, 6 directly on the side walls of the appliance conceivable. In order to ensure a backlash-free rotation, an elastic intermediate layer 28 has been introduced.

Die Figur 2 zeigt ein weiteres Ausführungsbeispiel einer erfindungsgemäßen Höhenverstellmechanik 1'. Diese Höhenverstellmechanik weist modifizierte Seitenwandhalterungen 4' zu Aufnahme mehrerer Auszugsführungen 20 auf, somit können mehrere Ablagen 18 mit diesem System bewegt werden.The FIG. 2 shows a further embodiment of a height adjustment mechanism 1 'according to the invention. This height adjustment mechanism has modified side wall brackets 4 'for receiving a plurality of pullout guides 20, thus multiple shelves 18 can be moved with this system.

Anhand der Figuren 5-7 bzw. 8-10 wird im Folgenden ein Anhebevorgang einer Ablage 18 mit Hilfe der in Figur 1 gezeigten Höhenverstellung 1 beschrieben.Based on Figures 5-7 or 8-10 will hereafter be a lifting operation of a tray 18 using the in FIG. 1 shown height adjustment 1 described.

Die Figuren 5-7 zeigen ein erstes Haushaltsgerät mit einer darin montierten Ausführungsvariante einer Vorrichtung zur Höhenverstellung. Das Haushaltsgerät kann beispielsweise ein Backofen mit einer als Gargutträger 29 ausgebildeten Ablage 18, wie in den Figuren 5-7 gezeigt oder eine Spülmaschine mit einer als Geschirrkorb 19 ausgebildeten Ablage 18, wie es in den Figuren 8-10 gezeigt ist, sein. In den Figuren 5 und 8 befindet sich die Höhenverstellmechanik 1 jeweils in einer Ausgangsstellung, in der die Ablage 18 noch hinter einer Fronttür 17 vollständig in das Haushaltsgerät eingefahren ist. Die beiden Arme 5, 6 der Höhenverstellmechanik 1 stehen in dieser Lage der Ablage 18 vertikal und parallel beabstandet zueinander. Die Zugfeder 8 ist in dieser Position maximal gespannt und ihre Mittelachse liegt unterhalb des Drehpunktes des Armes 6.The Figures 5-7 show a first household appliance with a mounted therein embodiment of a device for height adjustment. The household appliance, for example, a baking oven with a tray 18 designed as a shelf 18, as in the Figures 5-7 shown or a dishwasher with a designed as a dish rack 19 tray 18, as shown in the Figures 8-10 is shown to be. In the Figures 5 and 8th is the height adjustment mechanism 1 each in a starting position in which the tray 18 is still fully retracted behind a front door 17 in the household appliance. The two arms 5, 6 of the height adjustment mechanism 1 are in this position of the tray 18 vertically and parallel spaced from one another. The tension spring 8 is maximally tensioned in this position and its central axis is below the pivot point of the arm. 6

Zu Beginn eines Anhebevorgangs kann zunächst die Ablage 18, die mit den Laufschienen 3 der Auszugsführung 20, 20' verbunden ist, in Auszugsrichtung A auf den Führungsschienen 2, 2' aus dem Haushaltsgerät herausgezogen werden. Eine solche Position der Ablage 18 ist in Figur 9 gezeigt. Nach dem Erreichen des Endanschlages erfolgt bei weiterem Herausziehen der Ablage 18 aus dem Haushaltsgerät bereits eine Anhebung der Ablage 18 mit Hilfe der Höhenverstellmechanik 1. Eine solche Position ist in Figur 6 dargestellt. Dabei sind die Arme 5, 6 bereits um einen Winkel aus ihrer vertikalen Ausgangsstellung heraus im Uhrzeigersinn gedreht. Durch das Drehen des Armes 6 wandert die Mittelachse über den Drehpunkt des Armes 6 an der Seitenwandhalterung 4, danach unterstütz die Zugfeder das Anheben.At the beginning of a lifting operation, first the tray 18, which is connected to the rails 3 of the pullout guide 20, 20 ', in the extension direction A on the guide rails 2, 2' are pulled out of the household appliance. Such a position of the tray 18 is in FIG. 9 shown. After reaching the end stop further removal of the tray 18 from the household appliance is already an increase of the tray 18 by means of the height adjustment mechanism 1. Such a position is in FIG. 6 shown. The arms 5, 6 are already rotated by an angle from their vertical starting position in a clockwise direction. By rotating the arm 6, the central axis moves over the pivot point of the arm 6 on the side wall mount 4, then the tension spring supports the lifting.

Bei der in den Figuren 7 bzw. 10 gezeigten Positionen hat die Ablage 18 ihre angehobene Endstellung erreicht. Dabei stehen die Arme 5, 6 waagerecht oder zumindest nahezu waagerecht. Die Zugfeder ist in dieser Position nahezu entspannt. In dieser Position der Ablage 18 ist ein bequemes Be- oder Entladen der Ablage 18 durch einen Benutzer ermöglicht.In the in the FIGS. 7 or 10 shown positions, the tray 18 has reached its raised end position. The arms 5, 6 are horizontal or at least almost horizontal. The tension spring is almost relaxed in this position. In this position of the tray 18 a comfortable loading or unloading of the tray 18 is made possible by a user.

Zur Arretierung der Höhenverstellmechanik 1 in einer Endlage weist die Höhenverstellmechanik 1 eine in den Figuren 11-13 gezeigte Arretiermechanik auf. Diese Arretiermechanik besteht im Wesentlichen aus einem Arretierelement 12, das in einem Endbereich der Führung 11 vorgesehen ist. Die Führung 11 ist dabei bevorzugt als kreisbogenförmige Führungsnut ausgebildet, wobei das Kopfstück 22 des in Auszugsrichtung hinteren Arms 6 an einer Position des Kreismittelpunkts der kreisbogenförmgen Führungsnut 11 an der Seitenwandhalterung 4 festgelegt ist. Das Arretierelement 12 ist bevorzugt als Bolzen ausgebildet, der in eine Führungsnut eines Führungselements 26 einschiebbar und selbsttätig verrastbar ist. Dieses Führungselement 26 steht aus einem Kopfstück 22 des in Auszugsrichtung A hinteren Armes 6 hervor und ragt in die Führung 11 hinein, die auf der der Seitenwand 21, 27 des Haushaltsgeräts abgewandten Seite der Seitenwandhalterung 4 eingelassen ist. Auch das Kopfstück 22 weist zur platzsparenden Unterbringung des Führungselementes 26 in diesem Bereich eine Aussparung 25 auf. Auf der der Seitenwandhalterung 4 abgewandten Seite des Kopfstücks 22 ist ein Entriegelungselement 24 vorgesehen, mit dem die Verrastung wieder aufhebbar ist.To lock the height adjustment mechanism 1 in an end position, the height adjustment mechanism 1 in the FIGS. 11-13 Locking mechanism shown on. This locking mechanism essentially consists of a locking element 12, which is provided in an end region of the guide 11. The guide 11 is preferably formed as a circular arc-shaped guide, wherein the head piece 22 of the extension direction rear arm 6 is fixed to a position of the circle center of the circular arc-shaped guide groove 11 on the side wall bracket 4. The locking element 12 is preferably designed as a bolt which is inserted into a guide groove 26 of a guide member and automatically latched. This guide element 26 protrudes from a head piece 22 of the rear arm 6 in the extension direction A and protrudes into the guide 11, which is recessed on the side wall bracket 4 facing away from the side wall 21, 27 of the domestic appliance. The head piece 22 has a recess 25 for space-saving accommodation of the guide element 26 in this area. On the side wall bracket 4 side facing away from the head piece 22, an unlocking element 24 is provided, with which the latching can be canceled again.

Um eventuelle Variationen der Anhebehöhe der Ablage 18 durchführen zu können, sind in der Führung 11 bevorzugt weitere Bohrungen 23 vorgesehen. Dadurch sind unterschiedliche Positionierungen des Arretierelements 12 ermöglicht. Je nachdem, in welcher Bohrung 23 der Bolzen 12 angeordnet ist, kann das Kopfstück 22 des Armes 6 in der Führung 11 mehr oder weniger weit nach oben in der Führung 11 verschoben werden, was mit einer Anpassung der Anhebehöhe einhergeht.In order to be able to carry out possible variations of the raising height of the tray 18, further holes 23 are preferably provided in the guide 11. As a result, different positions of the locking element 12 are possible. Depending on which bore 23 of the bolt 12 is arranged, the head piece 22 of the arm 6 can be moved in the guide 11 more or less far up in the guide 11, which is associated with an adjustment of the lifting height.

Wie in den Figuren 9 und 10 zu sehen ist, ist die Höhenverstellmechanik 1 dabei so angeordnet, dass auch ein zweiter Geschirrkorb 19, der über eine Auszugsführung 20' aus dem Geschirrspüler herausziehbar ist, in einem solchen Haushaltsgerät unterbringbar ist, ohne die Anhebbarkeit der unteren Ablage 18 in ihrer Funktion zu beeinträchtigen.As in the Figures 9 and 10 can be seen, the height adjustment mechanism 1 is arranged so that even a second crockery basket 19 which is pulled out of the dishwasher via a pullout guide 20 ', in such a household appliance can be accommodated without affecting the ability to lift the lower tray 18 in their function ,

Zur Einstellung der Zugkraft der Zugfeder ist an der Seitenwandhalterung 4 in einer besonderen Ausführungsvariante eine Nut 14 vorgesehen, in der der die Zugfeder haltende Bolzen 13 horizontal verstellbar verrastbar ist. Dadurch lässt sich die Zugkraft zur Unterstützung einer Anhebung der Ablage 18 in einfacher Weise individuell anpassen.To adjust the tensile force of the tension spring a groove 14 is provided on the side wall bracket 4 in a particular embodiment, in which the tension spring retaining pin 13 is latched horizontally adjustable. As a result, the tensile force to support an increase of the tray 18 can be adjusted individually in a simple manner.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

Höhenverstellmechanikheight adjustment mechanism
11
Höhenverstellmechanikheight adjustment mechanism
1'1'
Führungsschieneguide rail
22
Führungsschieneguide rail
2'2 '
Laufschienerunner
33
Laufschienerunner
3'3 '
SeitenwandhalterungSide wall bracket
44
SeitenwandhalterungSide wall bracket
4'4 '
Armpoor
55
Armpoor
66
Schienenhalterungrail mount
77
Energiespeicherenergy storage
88th
Querstrebecrossmember
99
Bolzenbolt
1010
Führungguide
1111
Arretierelementlocking
1212
Bolzenbolt
1313
Nutgroove
1414
Querstrebecrossmember
1515
Nietkopfrivet head
1616
Türdoor
1717
Ablagefiling
1818
Geschirrkorbdish rack
1919
Auszugsführungpull-out guide
2020
Auszugsführungpull-out guide
20'20 '
SeitenwandSide wall
2121
Kopfstückheadpiece
2222
Bohrungdrilling
2323
Entriegelungselementunlocking
2424
Aussparungrecess
2525
Führungselementguide element
2626
SeitenwandSide wall
2727
Zwischenlageliner
2828
Gargutträgerfood support
2929
Auszugsrichtungextraction direction
AA

Claims (11)

  1. An apparatus for adjusting the height of a counter (18) guided in a household device by way of at least one pull-out guide (20, 20'), comprising
    - at least one sliding rail (3, 3') on which a counter (18) is guidable and can be pulled out in a pull-out direction A;
    - a height adjustment mechanism (1) which can be fixed to opposing side walls (21, 27) of the household device, with
    - the height adjustment mechanism (1) comprising two arms (5, 6) which are rotatably fixed to each of the side walls (21, 27) with one first end parallel to the plane of the side walls (21, 27) and are arranged to be spaced parallel with respect to each other;
    - with two guide rails (2) being fixable to respective second ends of the arms (5, 6) in a rotatable manner parallel to the plane of the side walls (21, 27) in such a way that the guide rails (2) can be lifted from a bottom position in the household device to an upper position at least partly before the household device, with
    - an energy storage device (8) being fixable to at least one of the opposing side walls (21, 27) of the household device, which energy storage device is in operative connection with one of the arms (6) fixed to said side wall (21, 27) in such a way that a lifting or lowering of the guide rails (2) is supportable by the energy stored in the energy storage device (8), with
    - a side wall fixture (4) being fixable to at least one of the opposing side walls (21, 27) of the household device, to which the arms (5, 6) and the energy storage device (8) of the height adjustment mechanism (1) are fixed with a first end,
    characterized in that
    - a guide (11) is provided on the side of the side wall fixture (4) which faces away from the side wall (21, 27) of the household device, in which a guide element (26) can be guided which protrudes from a head element (22) of one of the arms (6).
  2. An apparatus according to claim 1, characterized in that the energy storage device (8) is arranged as a tension spring.
  3. An apparatus according to claim 1 or 2, characterized in that the side wall fixture (4) is arranged as a holding plate.
  4. An apparatus according to one of the preceding claims, characterized in that the guide (11) is arranged as a guide groove shaped in the manner of a circular arc and the head element (22) is fixed to the side wall fixture (4) at a position of the center of the circle of the guide groove shaped in the manner of a circular arc.
  5. An apparatus according to one of the preceding claims, characterized in that a locking element (12) is provided in at least one end region of the guide (11), with which the arm (6) and thereby the entire height adjustment mechanism (1) can be locked in an end position.
  6. An apparatus according to one of the preceding claims, characterized in that the arms (6) which are arranged on opposing side walls (21, 27) and to which the energy storage device (8) can be fixed are connected to each other by way of a cross member (15).
  7. An apparatus according to one of the preceding claims, characterized in that a second end of the arms (5, 6) of the height adjustment mechanism is rotatably fixed to a rail fixture (7), with one rail fixture (7) each being fastened to each of the guide rails (2).
  8. An apparatus according to one of the preceding claims, characterized in that a support member (9) which connects the two arms (5, 6) to each other is rotatably fixed to the arms (5, 6) in a plane parallel to the plane of the side walls (21, 27), which arms are arranged to be spaced from one another in parallel.
  9. An apparatus according to one of the preceding claims, characterized in that the energy storage device (8) can be fixed in a horizontally adjustable manner to the side wall (21, 27) of the household device.
  10. An apparatus according to claims 3 and 9, characterized in that the holding plate (4) comprises a groove (14) in which the energy storage device (8) can be locked in a horizontally adjustable way.
  11. An apparatus according to one of the preceding claims, characterized in that a cross member (15) is used for synchronizing the left and right side.
EP10714881.9A 2009-04-30 2010-04-16 Apparatus for adjusting the height of a counter which is guided in a household device by way of at least one pull-out guide Active EP2424421B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10714881T PL2424421T3 (en) 2009-04-30 2010-04-16 Apparatus for adjusting the height of a counter which is guided in a household device by way of at least one pull-out guide

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202009004771U DE202009004771U1 (en) 2009-04-30 2009-04-30 Device for adjusting the height of a guided in a household appliance via at least one pullout guide tray
PCT/EP2010/055036 WO2010124947A2 (en) 2009-04-30 2010-04-16 Apparatus for adjusting the height of a counter which is guided in a household device by way of at least one pull-out guide

Publications (2)

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EP2424421A2 EP2424421A2 (en) 2012-03-07
EP2424421B1 true EP2424421B1 (en) 2015-10-07

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US (1) US9004622B2 (en)
EP (1) EP2424421B1 (en)
DE (1) DE202009004771U1 (en)
ES (1) ES2558438T3 (en)
PL (1) PL2424421T3 (en)
PT (1) PT2424421E (en)
WO (1) WO2010124947A2 (en)

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US9004622B2 (en) 2015-04-14
ES2558438T3 (en) 2016-02-04
US20120074080A1 (en) 2012-03-29
PL2424421T3 (en) 2016-03-31
WO2010124947A2 (en) 2010-11-04
DE202009004771U1 (en) 2010-09-09
EP2424421A2 (en) 2012-03-07
WO2010124947A3 (en) 2011-01-27

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