EP2468136A1 - Household appliance, in particular free standing cooker - Google Patents

Household appliance, in particular free standing cooker Download PDF

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Publication number
EP2468136A1
EP2468136A1 EP11193914A EP11193914A EP2468136A1 EP 2468136 A1 EP2468136 A1 EP 2468136A1 EP 11193914 A EP11193914 A EP 11193914A EP 11193914 A EP11193914 A EP 11193914A EP 2468136 A1 EP2468136 A1 EP 2468136A1
Authority
EP
European Patent Office
Prior art keywords
housing
appliance according
domestic appliance
threaded shaft
threaded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11193914A
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German (de)
French (fr)
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EP2468136B1 (en
Inventor
Michael Kieslinger
Alexander Ponemunski
Mehmet Ulas Usta
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2468136A1 publication Critical patent/EP2468136A1/en
Application granted granted Critical
Publication of EP2468136B1 publication Critical patent/EP2468136B1/en
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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
    • A47B91/00—Feet for furniture in general
    • A47B91/02—Adjustable feet
    • A47B91/022—Adjustable feet using screw means
    • A47B91/024—Foot attached to a rotating bolt supported in an internal thread
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4251—Details of the casing
    • A47L15/4253—Supporting arrangements for the casing, e.g. rollers or supporting legs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/08—Foundations or supports plates; Legs or pillars; Casings; Wheels
    • F24C15/086—Adjustable legs or pillars

Definitions

  • the present invention relates to a household appliance according to the preamble of patent claim 1.
  • Such a household appliance is from the document DE 295 12 662 U1 known.
  • a height-adjustable foot for household appliances or furniture on a shaft, at one end of a ground support surface is arranged.
  • an external thread is mounted in the height adjustable engages a nut which is rotatably supported against a housing.
  • the housing is attachable to the domestic appliance or furniture, wherein the nut circumference is engaged with a transmission into which preferably the drive rod devices can be introduced up to the front surface of the domestic appliance or furniture.
  • the invention has for its object to improve the said prior art.
  • the rotation protection is formed by at least one angularly projecting from the housing bearing element.
  • an enlarged contact surface is provided on the threaded shank, whereby a tolerance adjustable tilting, or slight rotation of the threaded shaft nevertheless a smooth adjustment of the height-adjustable foot is possible.
  • the contact element according to the invention can be produced in a cost-effective manner, for example by forming the housing and / or by molding to the housing. In this case, at an angle protruding from the housing, in particular, a housing part extending from an area of a housing wall at an angle is to be understood.
  • a plurality of contact elements according to the invention are used for the rotation protection.
  • the abutment element is formed as a substantially perpendicular from the housing upwardly directed tab.
  • a sheet metal housing such a design of the contact element is inexpensive to produce. By extending the tab up the components arranged in the housing are not affected in their function, whereby the housing can be made smaller.
  • the threaded shank facing contact surface of the contact element in a peripheral region has a phase or a fold whose surface is inclined to the contact surface by an angle between 1 ° and 45 °, in particular between 5 ° and 15 °, a low-friction guidance of the threaded shaft is made possible.
  • the friction losses are minimized at edges of the contact element.
  • the housing is made of sheet metal having a thickness of 0.6 to 2.0 mm, in particular from 0.8 to 1.5 mm.
  • the use of sheet metal creates a particularly sturdy torsion-resistant housing, which nevertheless can be produced inexpensively.
  • the abutment elements can accordingly be produced by a stamped and bent process.
  • the housing is made in one piece with the exception of a bottom by forming, resulting in a low-cost design.
  • fasteners such. B. thread impressions or shackles generated.
  • the threaded shank has at least one flattened thread region, against which the abutment element rests and thereby forms a rotation lock.
  • the abutment element is arranged on an upper side of the housing. This results in the possibility of the threaded shaft to lead beyond the housing. Such an increased guide height ensures a more precise guidance of the threaded shaft.
  • the housing has two oppositely arranged, mutually mirror-symmetrical contact elements.
  • Such a design allows improved rotation protection, which can absorb higher rotational forces. If the threaded shaft has two only flattened threaded areas, the effect of the worm wheel in screw engagement with the threaded shaft is only slightly influenced by the mirror-symmetrical arrangement of the contact elements and the matched, flattened threaded areas.
  • a foot plate is arranged on the threaded shaft, which in particular has a recess into which a roller can be mounted and in which recess the roller is rotatably mounted.
  • the arrangement of a foot plate at the end of the threaded shank a secure state of the household appliance, and a larger-scale weight distribution on a household appliance supporting floor allows.
  • a particularly flexible system is created.
  • Such a flexible system makes it easy to produce household appliances with or without a roller in the foot plate.
  • This also results in a simple retrofitting of the role, which is preferably held by impressions in the recess in this.
  • an axle of the roller engages in a region of the recess, the roller itself is rotatably mounted on the axle.
  • Such a role in the foot plate makes for easier installation of the household appliance in an existing furniture front.
  • the threaded shaft has a cylindrical, threadless attachment at an upper end.
  • Such an approach can prevent, for example, the complete unscrewing of the threaded shaft from the worm wheel by this is notumblebe illustratebar due to the lack of thread from an internal thread of the worm wheel.
  • the approach moreover, preferably has at least one slot into which a screwdriver and / or a coin can be attached for facilitated initial assembly of the threaded shaft.
  • a partial region of a base-side bearing plate forms the bottom of the housing and the partial region has at least one contact element arranged below the worm wheel.
  • the bottom-side bearing plate is made of a stable sheet metal, whereby the rotation protection formed therefrom in the form of the contact element is suitable for receiving high forces.
  • the housing and the base-side bearing plate are made, for example, from a thin sheet metal, the use of several contact elements, which are formed on the housing and on the bearing plate, makes sense.
  • the arranged below the worm wheel contact element preferably has away from the worm wheel, down.
  • the height adjustable foot 2 in Fig. 1 has a threaded shaft 4, whose external thread is in engagement with an internal thread of a worm wheel 6.
  • the threaded shaft 4 is made of plastic and formed as a hollow body.
  • a worm 8 is in engagement with the external thread of the worm wheel 6. It worm 8 is further connected via a drive shaft 10 with a front side on a household appliance arranged drive (not shown).
  • Such, operable by a user of the household appliance drive may be formed for example as a slot in the drive shaft 10 or as a handle attachment for the drive shaft 10.
  • the threaded shaft 4 has 2 opposite arranged, flattened threaded portions 12. The threads are only partially flattened.
  • the remaining thread in the flattened thread area is still (with reduced overlap) with the internal thread of the worm wheel 6 in engagement.
  • this has a non-threaded projection 14 which extends over a height ha.
  • the height ha is at least one third of a height hs ( Fig. 2 ) of the worm wheel 6, whereby accidental unscrewing of the threaded shaft from the internal thread of the worm wheel 6 is prevented.
  • the projection 14 has two cross-shaped slots arranged on each other, which allow the attachment of a tool, such as a screwdriver.
  • the threaded shaft 4 dives through an opening (not shown) of a bearing plate 16, which forms a bottom-side stiffening element of the household appliance.
  • a portion of the bearing plate 16 forms a bottom 19 of a housing 18 which in Fig. 2 is shown.
  • Worm 8, worm wheel 6 and drive shaft 10 are mounted or guided in the housing 18.
  • the worm wheel 6 is guided by means of an upper attachment 7a on the housing 18, and a lower attachment 7b on the bottom 19.
  • the distance between upper plant 7a and lower plant 7b corresponds to a height hs of the worm wheel.
  • standing with the worm wheel 6 in engagement toothing extends only over a centrally disposed portion of the height hs.
  • the remaining area of the height hs is used for better storage of the threaded shaft 4. This is better performed in the worm wheel 6, whereby a possible tilting movement of the threaded shaft 4 is limited.
  • An upper side 20 of the housing 18 has two oppositely disposed abutment elements 22, which are in engagement with the flattened threaded portion 12 of the threaded shaft 4 and form a rotation protection.
  • the contact elements 22 are directed from the horizontally formed top 20 of the housing 18 at right angles upwards.
  • a foot plate 24 is arranged, which has a recess 26.
  • a roller 30 in the recess 26 can be latched.
  • the roller 30 is rotatably mounted on the axis 28.
  • the foot plate 24 is optionally usable with or without roller 30.
  • Fig. 3 shows an enlarged detail of the contact element 22 Fig. 2
  • the contact element 22 has a contact surface 32 for the flattened thread region 12 of the threaded shaft 4.
  • a bent portion 34 is formed, which points away from the threaded shaft 4 by an angle ⁇ is inclined relative to the contact surface 32.
  • this center has an opposing embossing 36.

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  • Gear Transmission (AREA)

Abstract

The appliance has a vertically adjustable base (2) including a thread shaft (4) immersed through a housing (18). A worm wheel (6) is rotatably mounted in the housing and stays in screw engagement with the thread shaft. A worm is rotatably mounted in the housing and engaged with the worm wheel. Contact elements (22) angularly project from the housing and form a housing fixed rotary protection for the thread shaft. The contact elements are designed as flaps, which are upwardly directed from the housing at a right angle. The housing is manufactured from a sheet with a thickness of 0.8 to 1.5 mm.

Description

Die vorliegende Erfindung betrifft ein Haushaltsgerät gemäß dem Oberbegriff des Patentanspruchs 1.The present invention relates to a household appliance according to the preamble of patent claim 1.

Ein derartiges Haushaltsgerät ist aus der Druckschrift DE 295 12 662 U1 bekannt. Darin weist ein höhenverstellbarer Fuß für Hausgeräte oder Möbel einen Schaft auf, an dessen einem Ende eine Bodenauflagefläche angeordnet ist. An dessen Schafterstreckung ist ein Außengewinde angebracht, in das höhenverstellbar eine Mutter eingreift, die drehbar gegen ein Gehäuse abgestützt ist. Das Gehäuse ist an dem Hausgerät oder Möbel anbringbar, wobei der Mutternumfang mit einem Getriebe in Eingriff steht, in das vorzugsweise bis zur Frontfläche des Hausgeräts oder Möbels die Antriebsstangeneinrichtungen einbringbar sind.Such a household appliance is from the document DE 295 12 662 U1 known. Therein, a height-adjustable foot for household appliances or furniture on a shaft, at one end of a ground support surface is arranged. At the Schafterstreckung an external thread is mounted in the height adjustable engages a nut which is rotatably supported against a housing. The housing is attachable to the domestic appliance or furniture, wherein the nut circumference is engaged with a transmission into which preferably the drive rod devices can be introduced up to the front surface of the domestic appliance or furniture.

Der Erfindung liegt die Aufgabe zugrunde, den genannten Stand der Technik zu verbessern.The invention has for its object to improve the said prior art.

Diese Aufgabe wird durch ein Haushaltsgerät, insbesondere durch einen Standherd mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Ausgestaltungen sind den Unteransprüchen einzeln oder in Kombination zu entnehmen.This object is achieved by a household appliance, in particular by a cooker having the features of patent claim 1. Advantageous embodiments are given in the dependent claims individually or in combination.

Gemäß dem kennzeichnenden Teil des Patentanspruchs 1 ist der Drehschutz durch zumindest ein winklig vom Gehäuse abstehendes Anlageelement gebildet. Durch eine derartige Ausbildung ist eine vergrößerte Anlagefläche an den Gewindeschaft bereitgestellt, wodurch bei toleranzbedingtem Verkippen, bzw. geringfügigem Drehen des Gewindeschafts dennoch ein leichtgängiges Verstellen des höhenverstellbaren Fußes ermöglicht ist. Das erfindungsgemäße Anlageelement ist in preisgünstiger Weise beispielsweise durch Umformen des Gehäuses und/oder durch Anformen an das Gehäuse erzeugbar. Dabei ist unter winklig vom Gehäuse abstehend insbesondere ein von einer Fläche einer Gehäusewandung unter einem Winkel sich erstreckendes Gehäuseteil zu verstehen. Bevorzugt werden für den Drehschutz mehrere erfindungsgemäße Anlageelemente verwendet.According to the characterizing part of claim 1, the rotation protection is formed by at least one angularly projecting from the housing bearing element. By such a design, an enlarged contact surface is provided on the threaded shank, whereby a tolerance adjustable tilting, or slight rotation of the threaded shaft nevertheless a smooth adjustment of the height-adjustable foot is possible. The contact element according to the invention can be produced in a cost-effective manner, for example by forming the housing and / or by molding to the housing. In this case, at an angle protruding from the housing, in particular, a housing part extending from an area of a housing wall at an angle is to be understood. Preferably, a plurality of contact elements according to the invention are used for the rotation protection.

Bei einer bevorzugten Ausgestaltung ist das Anlageelement als im Wesentlichen vom Gehäuse rechtwinklig nach oben gerichtete Lasche ausgebildet. Insbesondere bei Verwendung eines Blechgehäuses ist eine derartige Ausbildung des Anlageelements preisgünstig herstellbar. Durch die Erstreckung der Lasche nach oben werden die im Gehäuse angeordneten Komponenten in ihrer Funktion nicht beeinflusst, wodurch das Gehäuse kleiner ausgebildet werden kann.In a preferred embodiment, the abutment element is formed as a substantially perpendicular from the housing upwardly directed tab. In particular, when using a sheet metal housing, such a design of the contact element is inexpensive to produce. By extending the tab up the components arranged in the housing are not affected in their function, whereby the housing can be made smaller.

Indem eine dem Gewindeschaft zugewandte Anlagefläche des Anlageelements in einem Randbereich eine Phase oder eine Abkantung aufweist, dessen Fläche zur Anlagefläche um einen Winkel zwischen 1° und 45°, insbesondere zwischen 5° und 15° geneigt ist, ist eine reibungsarme Führung des Gewindeschafts ermöglicht. Insbesondere bei einer leichten Verkippung des Gewindeschafts aufgrund einer gegebenen Toleranzlage werden dadurch die Reibungsverluste an Kanten des Anlageelements minimiert.By a the threaded shank facing contact surface of the contact element in a peripheral region has a phase or a fold whose surface is inclined to the contact surface by an angle between 1 ° and 45 °, in particular between 5 ° and 15 °, a low-friction guidance of the threaded shaft is made possible. In particular, with a slight tilting of the threaded shaft due to a given tolerance position thereby the friction losses are minimized at edges of the contact element.

In einer weiteren Ausgestaltung wird vorgeschlagen, dass das Gehäuse aus Blech hergestellt ist, das eine Stärke von 0,6 bis 2,0 mm, insbesondere von 0,8 bis 1,5 mm aufweist. Durch die Verwendung von Blech wird ein besonders stabiles, verwindungssteifes Gehäuse geschaffen, das dennoch preisgünstig herstellbar ist. Die Anlageelemente sind dementsprechend durch einen Stanz- Biege- Prozess herstellbar.In a further embodiment, it is proposed that the housing is made of sheet metal having a thickness of 0.6 to 2.0 mm, in particular from 0.8 to 1.5 mm. The use of sheet metal creates a particularly sturdy torsion-resistant housing, which nevertheless can be produced inexpensively. The abutment elements can accordingly be produced by a stamped and bent process.

Insbesondere wenn das Gehäuse mit Ausnahme eines Bodens einstückig durch Umformung hergestellt ist, ergibt sich eine preisgünstige Ausgestaltung. Vorzugsweise werden im Umformprozess zugleich Befestigungselemente, wie z. B. Gewindeeindrücke oder Schränklaschen, erzeugt.In particular, when the housing is made in one piece with the exception of a bottom by forming, resulting in a low-cost design. Preferably, in the forming process at the same time fasteners, such. B. thread impressions or shackles generated.

In einer bevorzugten Weiterbildung weist der Gewindeschaft zumindest einen abgeflachten Gewindebereich auf, an den das Anlageelement anliegt und dadurch eine Drehsicherung bildet. Indem der Gewindebereich lediglich abgeflacht und das Gewinde in diesem Bereich nicht vollständig zurückgenommen ist, ergibt sich dadurch nur eine geringfügige Beeinflussung der Kraftübertragung von einem Innengewindes des Schneckenrades auf das Gewinde des Gewindeschafts.In a preferred development, the threaded shank has at least one flattened thread region, against which the abutment element rests and thereby forms a rotation lock. By only flattening the threaded portion and the thread is not completely withdrawn in this area, this results in only a slight influence on the power transmission from an internal thread of the worm wheel on the thread of the threaded shaft.

Um eine kleine Bauweise des Gehäuses zu ermöglichen, ist das Anlageelement an einer Oberseite des Gehäuses angeordnet. Dadurch ergibt sich die Möglichkeit, den Gewindeschaft über das Gehäuse hinaus zu führen. Eine derart vergrößerte Führungshöhe sorgt für eine präzisere Führung des Gewindeschafts.In order to allow a small construction of the housing, the abutment element is arranged on an upper side of the housing. This results in the possibility of the threaded shaft to lead beyond the housing. Such an increased guide height ensures a more precise guidance of the threaded shaft.

Bevorzugt ist es, wenn das Gehäuse zwei gegenüberliegend angeordnete, zueinander spiegelsymmetrisch ausgebildete Anlageelemente aufweist. Eine derartige Ausbildung ermöglicht einen verbesserten Drehschutz, der höhere Drehkräfte abfangen kann. Weist der Gewindeschaft entsprechend zwei lediglich abgeflachte Gewindebereiche auf, so wird durch die spiegelsymmetrische Anordnung der Anlageelemente und der darauf abgestimmten, abgeflachten Gewindebereiche die Wirkung des mit dem Gewindeschaft in Schraubeingriff stehenden Schneckenrades nur geringfügig beeinflusst.It is preferred if the housing has two oppositely arranged, mutually mirror-symmetrical contact elements. Such a design allows improved rotation protection, which can absorb higher rotational forces. If the threaded shaft has two only flattened threaded areas, the effect of the worm wheel in screw engagement with the threaded shaft is only slightly influenced by the mirror-symmetrical arrangement of the contact elements and the matched, flattened threaded areas.

Gemäß einer weiteren Fortbildung der Erfindung ist am Gewindeschaft ein Fußteller angeordnet, der insbesondere eine Ausnehmung aufweist, in die eine Rolle montierbar ist und in welcher Ausnehmung die Rolle drehbar gelagert ist. Durch die Anordnung eines Fußtellers am Ende des Gewindeschafts werden ein sicherer Stand des Haushaltsgerätes, sowie eine großflächigere Gewichtsverteilung auf einem das Haushaltsgerät tragenden Fußboden ermöglicht. Weist der Fußteller eine Ausnehmung auf, in die eine Rolle montierbar ist, so ist ein besonders flexibles System geschaffen. Durch ein derart flexibles System sind auf einfache Weise Haushaltsgeräte mit und ohne Rolle im Fußteller erzeugbar. Auch ergibt sich dadurch eine einfache Nachrüstbarkeit der Rolle, die bevorzugt durch Eindrücken in die Ausnehmung in dieser gehalten wird. Dabei rastet beispielsweise eine Achse der Rolle in einem Bereich der Ausnehmung ein, die Rolle selbst ist drehbar auf der Achse gelagert. Eine derartige Rolle im Fußteller sorgt für einen erleichterten Einbau des Haushaltsgerätes in eine bestehende Möbelfront.According to a further development of the invention, a foot plate is arranged on the threaded shaft, which in particular has a recess into which a roller can be mounted and in which recess the roller is rotatably mounted. The arrangement of a foot plate at the end of the threaded shank a secure state of the household appliance, and a larger-scale weight distribution on a household appliance supporting floor allows. If the foot plate has a recess into which a roller can be mounted, a particularly flexible system is created. Such a flexible system makes it easy to produce household appliances with or without a roller in the foot plate. This also results in a simple retrofitting of the role, which is preferably held by impressions in the recess in this. In this case, for example, an axle of the roller engages in a region of the recess, the roller itself is rotatably mounted on the axle. Such a role in the foot plate makes for easier installation of the household appliance in an existing furniture front.

Bevorzugt ist es, wenn de Gewindeschaft an einem oberen Ende einen zylinderförmigen, gewindelosen Ansatz aufweist. Ein derartiger Ansatz kann beispielsweise das vollständige Herausdrehen des Gewindeschafts aus dem Schneckenrad verhindern, indem dieser aufgrund des mangelnden Gewindes nicht aus einem Innengewinde des Schneckenrades herausbeförderbar ist. Bei einer Anpassung eines Durchmessers des Ansatzes an den Innendurchmesser des Schneckenrades wird zudem ein zu starkes Verkippen des Gewindeschaftes im ausgefahrenen Zustand verhindert, wodurch ein Wiedereindrehen des Gewindeschafts in das Schneckenrad ohne vorherige Ausrichtung ermöglicht ist. Der Ansatz weist zudem bevorzugt mindestens einen Schlitz auf, in den ein Schraubenzieher und/oder eine Münze zur erleichterten Erstmontage des Gewindeschaftes ansetzbar ist.It is preferred if the threaded shaft has a cylindrical, threadless attachment at an upper end. Such an approach can prevent, for example, the complete unscrewing of the threaded shaft from the worm wheel by this is not herausbeförderbar due to the lack of thread from an internal thread of the worm wheel. When adjusting a diameter of the approach to the inner diameter of the worm wheel also excessive tilting of the threaded shaft is prevented in the extended state, whereby a re-rotation of the threaded shaft is made possible in the worm wheel without prior alignment. The approach moreover, preferably has at least one slot into which a screwdriver and / or a coin can be attached for facilitated initial assembly of the threaded shaft.

In einer bevorzugten Weiterbildung wird vorgeschlagen, dass ein Teilbereich einer bodenseitigen Lagerplatte den Boden des Gehäuses bildet und der Teilbereich zumindest ein unterhalb des Schneckenrades angeordnetes Anlageelement aufweist. Dies ist insbesondere dann vorteilhaft, wenn die bodenseitige Lagerplatte aus einem stabilen Blech hergestellt ist, wodurch der daraus gebildete Drehschutz in Form des Anlageelementes zur Aufnahme hoher Kräfte geeignet ist. Sind das Gehäuse und die bodenseitige Lagerplatte beispielsweise aus einem dünnen Blech gefertigt, so ist die Verwendung mehrerer Anlageelemente, die am Gehäuse und an der Lagerplatte ausgebildet sind, sinnvoll. Das unterhalb des Schneckenrades angeordnete Anlageelement weist vorzugsweise vom Schneckenrad weg, nach unten.In a preferred development, it is proposed that a partial region of a base-side bearing plate forms the bottom of the housing and the partial region has at least one contact element arranged below the worm wheel. This is particularly advantageous when the bottom-side bearing plate is made of a stable sheet metal, whereby the rotation protection formed therefrom in the form of the contact element is suitable for receiving high forces. If the housing and the base-side bearing plate are made, for example, from a thin sheet metal, the use of several contact elements, which are formed on the housing and on the bearing plate, makes sense. The arranged below the worm wheel contact element preferably has away from the worm wheel, down.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels unter Bezugnahme auf die beigefügten Figuren. Es zeigen:

Figur 1
die räumliche Darstellung eines höhenverstellbaren Fußes ohne Gehäuse;
Figur 2
den höhenverstellbaren Fuß mit Gehäuse in einer Schnittdarstellung entsprechend der Kennzeichnung in Fig. 1 und
Figur 3
eine Detaildarstellung des Anlageelements entsprechend der Kennzeichnung in Fig. 2.
Further features and advantages of the invention will become apparent from the following description of an embodiment with reference to the accompanying figures. Show it:
FIG. 1
the spatial representation of a height-adjustable foot without housing;
FIG. 2
the height adjustable foot with housing in a sectional view according to the marking in Fig. 1 and
FIG. 3
a detailed representation of the contact element according to the marking in Fig. 2 ,

Der höhenverstellbare Fuß 2 in Fig. 1 weist einen Gewindeschaft 4 auf, dessen Außengewinde mit einem Innengewinde eines Schneckenrades 6 in Eingriff ist. Der Gewindeschaft 4 ist aus Kunststoff gefertigt und als Hohlkörper ausgebildet. Eine Schnecke 8 steht im Eingriff mit dem Außengewinde des Schneckenrades 6. Sie Schnecke 8 ist ferner über eine Antriebswelle 10 mit einem stirnseitig an einem Haushaltsgerät angeordneten Antrieb (nicht gezeigt) verbunden. Ein derartiger, von einem Benutzer des Haushaltsgerätes bedienbarer Antrieb kann beispielsweise als Schlitz in der Antriebswelle 10 oder als Griffaufsatz für die Antriebswelle 10 ausgebildet sein. Der Gewindeschaft 4 weist 2 gegenüberliegend angeordnete, abgeflachte Gewindebereiche 12 auf. Dabei sind die Gewindegänge lediglich teilweise abgeflacht. Das verbleibende Gewinde im abgeflachten Gewindebereich steht noch (mit reduzierter Überlappung) mit dem Innengewinde des Schneckenrades 6 in Eingriff. An einem oberen Endabschnitt des Gewindeschafts 4 weist dieser einen gewindelosen Ansatz 14 auf, der sich über eine Höhe ha erstreckt. Dabei beträgt die Höhe ha mindestens ein Drittel einer Höhe hs (Fig. 2) des Schneckenrades 6, wodurch ein versehentliches Ausdrehen des Gewindeschafts aus dem Innengewinde des Schneckenrades 6 verhindert wird. Der Ansatz 14 weist zwei kreuzförmig zueinander angeordnete Schlitze auf, die das Ansetzen eines Werkzeuges, wie z.B. einen Schraubendreher ermöglichen. Der Gewindeschaft 4 taucht durch eine Öffnung (nicht gezeigt) einer Lagerplatte 16, die ein bodenseitiges Versteifungselement des Haushaltsgerätes bildet.The height adjustable foot 2 in Fig. 1 has a threaded shaft 4, whose external thread is in engagement with an internal thread of a worm wheel 6. The threaded shaft 4 is made of plastic and formed as a hollow body. A worm 8 is in engagement with the external thread of the worm wheel 6. It worm 8 is further connected via a drive shaft 10 with a front side on a household appliance arranged drive (not shown). Such, operable by a user of the household appliance drive may be formed for example as a slot in the drive shaft 10 or as a handle attachment for the drive shaft 10. The threaded shaft 4 has 2 opposite arranged, flattened threaded portions 12. The threads are only partially flattened. The remaining thread in the flattened thread area is still (with reduced overlap) with the internal thread of the worm wheel 6 in engagement. At an upper end portion of the threaded shaft 4, this has a non-threaded projection 14 which extends over a height ha. The height ha is at least one third of a height hs ( Fig. 2 ) of the worm wheel 6, whereby accidental unscrewing of the threaded shaft from the internal thread of the worm wheel 6 is prevented. The projection 14 has two cross-shaped slots arranged on each other, which allow the attachment of a tool, such as a screwdriver. The threaded shaft 4 dives through an opening (not shown) of a bearing plate 16, which forms a bottom-side stiffening element of the household appliance.

Ein Teilbereich der Lagerplatte 16 bildet einen Boden 19 eines Gehäuses 18, das in Fig. 2 gezeigt ist. Schnecke 8, Schneckenrad 6 und Antriebswelle 10 sind im Gehäuse 18 gelagert bzw. geführt. Das Schneckenrad 6 ist dabei mittels einer oberen Anlage 7a am Gehäuse 18, sowie einer unteren Anlage 7b am Boden 19 geführt. Der Abstand zwischen oberer Anlage 7a und unterer Anlage 7b entspricht einer Höhe hs des Schneckenrades. Dabei erstreckt sich die mit dem Schneckenrad 6 in Eingriff stehende Verzahnung nur über einen mittig angeordneten Teilbereich der Höhe hs. Der verbleibende Bereich der Höhe hs dient zur besseren Lagerung des Gewindeschafts 4. Dieser wird dadurch besser im Schneckenrad 6 geführt, wodurch eine mögliche Kippbewegung des Gewindeschafts 4 eingeschränkt ist. Eine Oberseite 20 des Gehäuses 18 weist zwei gegenüberliegend angeordnete Anlageelemente 22 auf, die mit dem abgeflachten Gewindebereich 12 des Gewindeschafts 4 in Eingriff sind und einen Drehschutz bilden. Die Anlageelemente 22 stehen dabei von der horizontal ausgebildeten Oberseite 20 des Gehäuses 18 rechtwinklig nach oben gerichtet ab. An einem unteren Endabschnitt des Gewindeschafts 4 ist ein Fußteller 24 angeordnet, der eine Ausnehmung 26 aufweist. Mittels einer Achse 28 ist eine Rolle 30 in die Ausnehmung 26 einrastbar. Dabei ist die Rolle 30 auf der Achse 28 drehbar gelagert. Der Fußteller 24 ist optional mit oder ohne Rolle 30 verwendbar.A portion of the bearing plate 16 forms a bottom 19 of a housing 18 which in Fig. 2 is shown. Worm 8, worm wheel 6 and drive shaft 10 are mounted or guided in the housing 18. The worm wheel 6 is guided by means of an upper attachment 7a on the housing 18, and a lower attachment 7b on the bottom 19. The distance between upper plant 7a and lower plant 7b corresponds to a height hs of the worm wheel. In this case, standing with the worm wheel 6 in engagement toothing extends only over a centrally disposed portion of the height hs. The remaining area of the height hs is used for better storage of the threaded shaft 4. This is better performed in the worm wheel 6, whereby a possible tilting movement of the threaded shaft 4 is limited. An upper side 20 of the housing 18 has two oppositely disposed abutment elements 22, which are in engagement with the flattened threaded portion 12 of the threaded shaft 4 and form a rotation protection. The contact elements 22 are directed from the horizontally formed top 20 of the housing 18 at right angles upwards. At a lower end portion of the threaded shaft 4, a foot plate 24 is arranged, which has a recess 26. By means of an axis 28, a roller 30 in the recess 26 can be latched. In this case, the roller 30 is rotatably mounted on the axis 28. The foot plate 24 is optionally usable with or without roller 30.

Fig. 3 zeigt eine vergrößerte Detaildarstellung des Anlageelements 22 aus Fig. 2. Das Anlageelement 22 weist dabei eine Anlagefläche 32 für den abgeflachten Gewindebereich 12 des Gewindeschafts 4 auf. An einem oberen Endabschnitt der Auflagefläche 32 ist eine Abkantung 34 ausgebildet, die vom Gewindeschaft 4 wegweisend um einen Winkel α gegenüber der Anlagefläche 32 geneigt ist. Um bei stärkerer Belastung ein Verbiegen des Anlageelements 22 sicher zu verhindern, weist dieses mittig eine Gegenprägung 36 auf. Fig. 3 shows an enlarged detail of the contact element 22 Fig. 2 , The contact element 22 has a contact surface 32 for the flattened thread region 12 of the threaded shaft 4. At an upper end portion of the support surface 32, a bent portion 34 is formed, which points away from the threaded shaft 4 by an angle α is inclined relative to the contact surface 32. In order to reliably prevent bending of the contact element 22 under heavy load, this center has an opposing embossing 36.

BEZUGSZEICHENLISTELIST OF REFERENCE NUMBERS

22
höhenverstellbarer Fußheight adjustable foot
44
Gewindeschaftthreaded shaft
66
Schneckenradworm
7a7a
obere Anlageupper plant
7b7b
untere Anlagelower attachment
88th
Schneckeslug
1010
Antriebswelledrive shaft
1212
abgeflachter Gewindebereichflattened thread area
1414
Ansatzapproach
1616
Lagerplattebearing plate
1818
Gehäusecasing
1919
Bodenground
2020
Oberseitetop
2222
Anlageelementcontact element
2424
Fußtellerfoot plate
2626
Ausnehmungrecess
2828
Achseaxis
3030
Rollerole
3232
Anlageflächecontact surface
3434
Abkantungfold
3636
Gegenprägungagainst embossing
αα
Winkelangle
haHa
Höhe AnsatzHeight approach
hshs
Höhe SchneckenradHeight worm wheel

Claims (11)

Haushaltsgerät, insbesondere Standherd, mit einem höhenverstellbaren Fuß (2), der einen durch ein Gehäuse (18) tauchenden Gewindeschaft (4), ein mit dem Gewindeschaft (4) in Schraubeingriff stehendes, im Gehäuse (18) drehbar gelagertes Schneckenrad (6), eine in dem Gehäuse (18) drehbare gelagerte Schnecke (8), die mit dem Schneckenrad (6) in Eingriff steht, sowie einen gehäusefesten Drehschutz für den Gewindeschaft (4) aufweist, dadurch gekennzeichnet, dass der Drehschutz durch zumindest ein winklig vom Gehäuse (18) abstehendes Anlageelement (22) gebildet ist.Household appliance, in particular a cooker stove, with a height-adjustable foot (2) which has a threaded shaft (4) immersed by a housing (18), a screw wheel (6) which is screwed into the housing (18) and is screwed to the threaded shaft (4), a rotatably mounted in the housing (18) mounted worm (8), which is in engagement with the worm wheel (6) and a housing-fixed rotation protection for the threaded shank (4), characterized in that the rotation protection by at least one angle from the housing ( 18) projecting contact element (22) is formed. Haushaltsgerät nach Anspruch 1, dadurch gekennzeichnet, dass das Anlageelement (22) als im Wesentlichen vom Gehäuse (18) rechtwinklig nach oben gerichtete Lasche ausgebildet ist.Domestic appliance according to claim 1, characterized in that the abutment element (22) is designed as a substantially right from the housing (18) upwardly directed tab. Haushaltsgerät nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass eine dem Gewindeschaft (4) zugewandte Anlagefläche (32) des Anlageelements (22) in einem Randbereich eine Phase oder eine Abkantung (34) aufweist, dessen Fläche zur Anlagefläche (32) um einen Winkel (α) zwischen 1° und 45°, insbesondere zwischen 5° und 15° geneigt ist.Domestic appliance according to claim 1 or 2, characterized in that the threaded shank (4) facing abutment surface (32) of the contact element (22) in an edge region of a phase or a fold (34) whose surface to the contact surface (32) by an angle (α) is inclined between 1 ° and 45 °, in particular between 5 ° and 15 °. Haushaltsgerät nach einem der vorhergehenden Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Gehäuse (18) aus Blech hergestellt ist, das eine Stärke von 0,6 bis 2,0 mm, insbesondere von 0,8 bis 1,5 mm aufweist.Domestic appliance according to one of the preceding claims 1 to 3, characterized in that the housing (18) is made of sheet metal having a thickness of 0.6 to 2.0 mm, in particular from 0.8 to 1.5 mm. Haushaltsgerät nach Anspruch 4, dadurch gekennzeichnet, dass das Gehäuse (18) mit Ausnahme eines Bodens (19) einstückig durch Umformung hergestellt ist.Domestic appliance according to claim 4, characterized in that the housing (18) is made in one piece by deformation with the exception of a bottom (19). Haushaltsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Gewindeschaft zumindest einen abgeflachten Gewindebereich (12) aufweist, an dem das Anlageelement (22) anliegt und dadurch eine Drehsicherung bildet.Domestic appliance according to one of the preceding claims, characterized in that the threaded shaft at least one flattened threaded portion (12), on which the contact element (22) rests and thereby forms a rotation lock. Haushaltsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Anlageelement (22) an einer Oberseite (20) des Gehäuses (18) angeordnet ist.Domestic appliance according to one of the preceding claims, characterized in that the abutment element (22) on an upper side (20) of the housing (18) is arranged. Haushaltsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Gehäuse (18) zwei gegenüberliegend angeordnete, zueinander spiegelsymmetrisch ausgebildete Anlageelemente (22) aufweist.Domestic appliance according to one of the preceding claims, characterized in that the housing (18) has two oppositely disposed, mutually mirror-symmetrical contact elements (22). Haushaltsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass am Gewindeschaft ein Fußteller (24) angeordnet ist, der insbesondere eine Ausnehmung (26) aufweist, in die eine Rolle (30) montierbar ist und in welcher Ausnehmung (26) die Rolle (30) drehbar gelagert ist.Domestic appliance according to one of the preceding claims, characterized in that a foot plate (24) is arranged on the threaded shaft, in particular a recess (26) into which a roller (30) can be mounted and in which recess (26) the roller (30 ) is rotatably mounted. Haushaltsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Gewindeschaft (4) an einem oberen Ende einen zylinderförmigen, gewindelosen Ansatz (14) aufweist.Domestic appliance according to one of the preceding claims, characterized in that the threaded shank (4) has at an upper end a cylindrical, unthreaded projection (14). Haushaltsgerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein Teilbereich einer bodenseitigen Lagerplatte (16) den Boden (19) des Gehäuses (18) bildet und der Teilbereich zumindest ein unterhalb des Schneckenrades (6) angeordnetes Anlageelement (22) aufweist.Domestic appliance according to one of the preceding claims, characterized in that a portion of a bottom-side bearing plate (16) forms the bottom (19) of the housing (18) and the portion has at least one arranged below the worm wheel (6) contact element (22).
EP11193914.6A 2010-12-22 2011-12-16 Household appliance, in particular free standing cooker Active EP2468136B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010063919A DE102010063919A1 (en) 2010-12-22 2010-12-22 Household appliance, especially stove

Publications (2)

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EP2468136A1 true EP2468136A1 (en) 2012-06-27
EP2468136B1 EP2468136B1 (en) 2014-03-19

Family

ID=45440192

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Application Number Title Priority Date Filing Date
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DE (1) DE102010063919A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020126470A1 (en) * 2018-12-21 2020-06-25 Arcelik Anonim Sirketi A household appliance having reinforced and height adjustable feet mechanism
US20230263304A1 (en) * 2020-06-30 2023-08-24 Qingdao Haier Refrigerator Co., Ltd. Foot adjusting system and refrigerator having same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29512662U1 (en) 1995-08-05 1996-12-05 A-Z Ausrüstung und Zubehör GmbH & Co KG, 42579 Heiligenhaus Height-adjustable foot for kitchen appliances or furniture
US5967472A (en) * 1997-04-03 1999-10-19 Bsh Bosch Und Siemens Hausgeraete Gmbh Height-adjusting device for an adjusting foot of a household appliance
WO2009068399A1 (en) * 2007-11-29 2009-06-04 BSH Bosch und Siemens Hausgeräte GmbH Household appliance having a height-adjusting device for an appliance pedestal
WO2010096364A1 (en) * 2009-02-17 2010-08-26 Illinois Tool Works Inc. Adjustable foot, in particular a rear foot, for an electric household appliance

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29512662U1 (en) 1995-08-05 1996-12-05 A-Z Ausrüstung und Zubehör GmbH & Co KG, 42579 Heiligenhaus Height-adjustable foot for kitchen appliances or furniture
US5967472A (en) * 1997-04-03 1999-10-19 Bsh Bosch Und Siemens Hausgeraete Gmbh Height-adjusting device for an adjusting foot of a household appliance
WO2009068399A1 (en) * 2007-11-29 2009-06-04 BSH Bosch und Siemens Hausgeräte GmbH Household appliance having a height-adjusting device for an appliance pedestal
WO2010096364A1 (en) * 2009-02-17 2010-08-26 Illinois Tool Works Inc. Adjustable foot, in particular a rear foot, for an electric household appliance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020126470A1 (en) * 2018-12-21 2020-06-25 Arcelik Anonim Sirketi A household appliance having reinforced and height adjustable feet mechanism
US20230263304A1 (en) * 2020-06-30 2023-08-24 Qingdao Haier Refrigerator Co., Ltd. Foot adjusting system and refrigerator having same
US12022946B2 (en) * 2020-06-30 2024-07-02 Qingdao Haier Refrigerator Co., Ltd. Foot adjusting system and refrigerator having same

Also Published As

Publication number Publication date
EP2468136B1 (en) 2014-03-19
DE102010063919A1 (en) 2012-06-28

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