EP1964501B1 - Sheet metal sliding base plate for vacuum cleaner nozzle - Google Patents
Sheet metal sliding base plate for vacuum cleaner nozzle Download PDFInfo
- Publication number
- EP1964501B1 EP1964501B1 EP20080003617 EP08003617A EP1964501B1 EP 1964501 B1 EP1964501 B1 EP 1964501B1 EP 20080003617 EP20080003617 EP 20080003617 EP 08003617 A EP08003617 A EP 08003617A EP 1964501 B1 EP1964501 B1 EP 1964501B1
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- EP
- European Patent Office
- Prior art keywords
- sheet metal
- sliding base
- metal sliding
- suction orifice
- plateau
- 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.)
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- 239000002184 metal Substances 0.000 title claims description 39
- 230000007704 transition Effects 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 description 14
- 238000005452 bending Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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Classifications
-
- 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
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
Definitions
- the invention relates to a sheet metal soleplate for a vacuum cleaner with a molded on its underside, extending in the transverse direction suction mouth, which is bounded by a front and a rear Saugmundwand, and with obliquely oriented sliding surfaces in front of and behind the suction mouth, wherein in each case the transition region between a Saugmundwand and the associated sliding surface has a suction mouth edge.
- the sheet-metal sole is made by sheet metal forming.
- Sheet metal soles for vacuum cleaner nozzles with the features described above are known in practice.
- the substantially vertically extending side walls are in the known embodiments in a single arc in the associated sliding surface, wherein the arc defines a Saugmundkante.
- the bending angle of the sheet which corresponds to the outer angle between a Saugmundwand and the associated sliding surface, is in the known embodiments between 120 ° and 150 °.
- the height level of the suction mouth edge formed by the sheet is determined by the vertex of the sheet.
- the EP 1 180 340 A2 discloses a vacuum cleaner nozzle with a sliding sole, which has on its underside a transversely extending and bounded by a front and a rear suction mouth wall suction mouth. In front of and behind the suction mouth diagonally aligned sliding surfaces are provided.
- the document contains no information on the material of the sliding sole and describes the transition region between the suction mouth walls of the suction mouth and the associated sliding surface no closer.
- Out DE 1 960 386 U is a vacuum cleaner nozzle with a bottom sliding surface is known, which consists of an elastically deformable material and is stretched over Verstell stresses.
- a rotational adjustment of the adjustment the shape of the nozzle edges, which limit a suction mouth, can be changed.
- the nozzle lower edges receive a wide flat bearing surface; or there are narrow, arcuately rounded support edges.
- the invention has for its object to provide a sheet metal sole plate with the features described above, the Saugmundkanten are aligned exactly, and is easy to manufacture.
- the object is achieved in that the Saugmundor in each case in a first arc, which forms a Saugmundkante, merge into a horizontal plateau and that connects to the plateau, a second arc, which merges into the associated oblique sliding surface.
- the plateau has a width between 0.5 mm and 4 mm in the longitudinal direction.
- the invention is based essentially on the idea of dividing the transition region between the suction mouth walls and the respectively associated sliding surfaces into sections, and in this way geometrically decoupling the radius of the suction mouth edge from the course of the sliding surfaces.
- the transition region according to the invention is divided into two arcs with a horizontal plateau arranged therebetween, the material stress in the shaping is lower than in the production of the known sheet-metal soles. In particular, the risk of cracking and undesirably high material weakening in the bending areas are reduced.
- the height level of the two Saugmundkanten is contrary to the known from the prior art embodiments not determined by the vertex of an arc, but by the position of the horizontal plateau.
- the orientation of the surface spanned by the suction mouth edges on the underside of the suction mouth therefore remains even with a radius change of the first sheet, for example due to manufacturing or tool tolerances.
- the radius of the first arc can be independent of the other geometric Default values are freely varied as long as the first sheet still ends on the originally intended area of the plateau.
- the radius of the first arc can be increased while reducing the width of the plateau or can be reduced while increasing the width of the plateau, the further geometric default values remaining unchanged.
- the radius of the first arc is within the scope of the invention preferably between 0.3 mm and 2 mm, more preferably between 0.5 mm and 1 mm.
- the plateau preferably has a width between 1 mm and 2 mm in the longitudinal direction.
- the rear and / or the front suction mouth wall runs essentially vertically. At an angle of the sliding surfaces between 30 ° and 60 ° with respect to the horizontal then there is an external angle between the suction mouth walls and the respectively associated sliding surfaces between 120 ° and 150 °, which is divided according to the invention in the first arc and the second arc.
- the obliquely extending sliding surfaces need not be completely straight in the context of the invention, but can also be seen without restriction over their entire length or sections seen from the bottom of the sheet metal sole slightly curved convex or concave, wherein for determining the angle between the sliding surface and the horizontal an average slope of the sliding surface relative to the horizontal is to be based.
- a desired width of the plateau of about 1.5 mm is selected according to a preferred embodiment of the method according to the invention for the design of the sheet metal sole.
- the type and configuration of a vacuum cleaner nozzle, which is equipped with the sheet-metal sole according to the invention, is not limited.
- the sheet metal sole according to the invention is particularly suitable for vacuum cleaner nozzles, which have no additionally driven cleaning devices, such as a brush roller.
- the suction power depends largely on the suction air flow in the region of the suction mouth and in particular on the design and orientation of Saugmundkanten. Particularly important is an exact alignment of the two Saugmundkanten when the nozzle rests not exclusively with the Saugmundkanten, but with rollers and / or with sliding surfaces on the floor to be cleaned.
- Fig. 1 shows a sheet metal sole 1 according to the invention for a vacuum cleaner nozzle 2 with a formed on its underside, running in the transverse direction of the suction mouth 3, and with sliding surfaces 4a, 4b in front of and behind the suction mouth 3.
- the suction mouth 3 is bounded by a front and a rear suction mouth 5a, 5b , wherein the suction mouth walls 5a, 5b and the respective obliquely aligned slide-on surfaces 4a, 4b are each connected by a transitional region 6a, 6b.
- the transitional region 6a, 6b is designed in such a way that the suction mouth walls 5a, 5b each transition into a horizontal plateau 8a, 8b in a first arc 7a, 7b, which forms a suction mouth, and that a second arc is applied to the plateau 8a, 8b 9a, 9b connects, which merges into the associated inclined sliding surface 4a, 4b.
- the front suction mouth wall 5a and the rear suction mouth wall 5b are arranged substantially vertically, wherein in each case the first sheet 7a, 7b between a suction mouth wall 5a, 5b and the associated Plateau 8a, 8b has a radius between 0.3 mm and 2 mm, preferably between 0.5 mm and 1 mm, and forms about a quarter circle.
- the sliding surfaces 4a, 4b rise with respect to the horizontal H at an angle ⁇ , ⁇ 'between 30 ° and 60 °. Accordingly, the outer angle ⁇ between the front suction mouth wall 5a and the front slide surface 4a and the outer angle ⁇ 'between the rear suction mouth wall 5b and the rear slide surface 4b is between 120 ° and 150 °.
- the width B of the plateau 8a, 8b in the longitudinal direction is between 0.5 mm and 4 mm, preferably between 1 mm and 2 mm.
- the sheet metal sole plate 1 is made by deep drawing from a sheet with a sheet thickness between 0.4 mm to 1.5 mm.
- Fig. 2a shows the transition region 6b from a suction mouth 5b to the associated sliding surface 4b for different bending radii of the first arc 7b. Different bending radii can occur, for example, due to manufacturing and tool tolerances. Furthermore, a variation of the bending radius can be provided in orienting experiments for determining the optimal Saugmundkantengeometrie. Fig. 2a It can be seen that only the width of the plateau 8b changes when the radius of curvature of the arc 7b is modified.
- a vacuum cleaner nozzle 2 is shown with a sheet metal sole plate 1 according to the invention in a view from below.
- the vacuum cleaner nozzle 2 has rollers 10 on its rear side.
- the sheet metal sole plate 1 is connected by screws 11 to a housing 12 of the vacuum cleaner nozzle 2. Since the vacuum cleaner nozzle 2 has no additional driven cleaning devices, the design and arrangement of Saugmundkanten are of particular importance.
- the vacuum cleaner nozzle 2 is supported via sliding projections 13 which are formed in the sheet metal sole plate 1.
- the transition region 6a, 6b between a suction mouth wall 5a, 5b and the associated sliding surface 4a, 4b typically has a plateau 8a, 8b over the entire width of the sheet metal sole plate 1.
Description
Die Erfindung betrifft eine Blechgleitsohle für eine Staubsaugerdüse mit einem an ihrer Unterseite eingeformten, in Querrichtung verlaufenden Saugmund, der von einer vorderen und einer hinteren Saugmundwand begrenzt ist, und mit schräg ausgerichteten Aufgleitflächen vor und hinter dem Saugmund, wobei jeweils der Übergangsbereich zwischen einer Saugmundwand und der zugeordneten Aufgleitfläche eine Saugmundkante aufweist. Die Blechgleitsohle ist durch Blechumformung gefertigt.The invention relates to a sheet metal soleplate for a vacuum cleaner with a molded on its underside, extending in the transverse direction suction mouth, which is bounded by a front and a rear Saugmundwand, and with obliquely oriented sliding surfaces in front of and behind the suction mouth, wherein in each case the transition region between a Saugmundwand and the associated sliding surface has a suction mouth edge. The sheet-metal sole is made by sheet metal forming.
Da die Schmutzaufnahme bei einer Staubsaugerdüse, insbesondere bei einer statischen Düse, die keine zusätzlichen angetriebenen Reinigungseinrichtungen aufweist, hauptsächlich an den Saugmundkanten eines Saugmundes erfolgt, ist deren Ausgestaltung maßgeblich bestimmend für die gesamten Saugeigenschaften der Staubsaugerdüse, wobei auch bei der Fertigung eine möglichst genaue Einhaltung der bei der Auslegung einer Gleitsohle ermittelten Werte angestrebt wird. Da bei einer scharfkantigen Ausgestaltung der Saugmundkanten die Gefahr besteht, einen zu reinigenden Boden, beispielsweise einen Teppich, zu beschädigen, und auch sehr hohe Schiebekräfte auftreten können, werden die Saugmundkanten mit einem Radius versehen. Dieser Radius darf jedoch nicht zu groß gewählt werden, da bei einem zu großen Radius das Schmutzaufnahmevermögen deutlich abfällt. Während bei aus der Praxis bekannten thermoplastisch geformten Kunststoffgleitsohlen eine exakte und weitgehend frei wählbare Ausgestaltung der Saugmundkanten möglich ist, sind die Gestaltungsfreiheit und die Reproduzierbarkeit bei der Herstellung von Blechgleitsohlen durch Tiefziehen aufgrund des Blechumformungsprozesses begrenzt.Since the dirt pickup in a vacuum cleaner nozzle, in particular in a static nozzle, which has no additional driven cleaning devices, mainly at the Saugmundkanten a Saugmundes whose design is critically determinative of the entire suction of the vacuum cleaner nozzle, which also in the production as accurate as possible The aim is to achieve values determined in the design of a soleplate. Since in a sharp-edged design of Saugmundkanten the danger exists to damage a floor to be cleaned, such as a carpet, and also very high sliding forces can occur, the Saugmundkanten are provided with a radius. However, this radius must not be too large, because if the radius is too large, the dirt-holding capacity drops significantly. While an exact and largely arbitrary design of Saugmundkanten is possible in known from practice thermoplastically shaped Kunststoffgleitsohlen, the design freedom and reproducibility in the production of sheet metal soles are limited by deep drawing due to the sheet metal forming process.
Blechgleitsohlen für Staubsaugerdüsen mit den eingangs beschriebenen Merkmalen sind aus der Praxis bekannt. Die im Wesentlichen vertikal verlaufenden Seitenwände gehen bei den bekannten Ausführungen in einem einzigen Bogen in die zugeordnete Aufgleitfläche über, wobei der Bogen eine Saugmundkante definiert. Der Biegewinkel des Bleches, der dem Außenwinkel zwischen einer Saugmundwand und der zugeordneten Aufgleitfläche entspricht, liegt bei den bekannten Ausführungen zwischen 120° und 150°. Das Höhenniveau der von dem Bogen gebildeten Saugmundkante ist durch den Scheitelpunkt des Bogens bestimmt. Bereits eine geringfügige Abweichung des Biegeradius, aufgrund von Fertigungstoleranzen oder aufgrund des Austauschs des Formwerkzeuges führt zu einer Änderung des Höhenniveaus der Saugmundkante und so zu einer Fehlausrichtung der durch die Saugmundkanten aufgespannten Fläche, wodurch die Saugeigenschaften signifikant beeinträchtigt werden können.Sheet metal soles for vacuum cleaner nozzles with the features described above are known in practice. The substantially vertically extending side walls are in the known embodiments in a single arc in the associated sliding surface, wherein the arc defines a Saugmundkante. The bending angle of the sheet, which corresponds to the outer angle between a Saugmundwand and the associated sliding surface, is in the known embodiments between 120 ° and 150 °. The height level of the suction mouth edge formed by the sheet is determined by the vertex of the sheet. Even a slight deviation of the bending radius, due to manufacturing tolerances or due to the replacement of the mold leads to a change in the height level of the suction mouth edge and so to a misalignment of the surface defined by the Saugmundkanten surface, whereby the suction properties can be significantly affected.
Die
Aus
Vor diesem Hintergrund liegt der Erfindung die Aufgabe zugrunde, eine Blechgleitsohle mit den eingangs beschriebenen Merkmalen anzugeben, deren Saugmundkanten exakt ausgerichtet sind, und die leicht zu fertigen ist.Against this background, the invention has for its object to provide a sheet metal sole plate with the features described above, the Saugmundkanten are aligned exactly, and is easy to manufacture.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Saugmundwände jeweils in einem ersten Bogen, der eine Saugmundkante bildet, in ein horizontales Plateau übergehen und dass an das Plateau ein zweiter Bogen anschließt, der in die zugeordnete schräg verlaufende Aufgleitfläche übergeht. Das Plateau weist in Längsrichtung eine Breite zwischen 0,5 mm und 4 mm auf. Die Erfindung beruht im Kern auf der Idee, den Übergangsbereich zwischen den Saugmundwänden und den jeweils zugeordneten Aufgleitflächen in Abschnitte aufzuteilen, und auf diese Weise den Radius der Saugmundkante geometrisch von dem Verlauf der Aufgleitflächen zu entkoppeln.The object is achieved in that the Saugmundwände in each case in a first arc, which forms a Saugmundkante, merge into a horizontal plateau and that connects to the plateau, a second arc, which merges into the associated oblique sliding surface. The plateau has a width between 0.5 mm and 4 mm in the longitudinal direction. The invention is based essentially on the idea of dividing the transition region between the suction mouth walls and the respectively associated sliding surfaces into sections, and in this way geometrically decoupling the radius of the suction mouth edge from the course of the sliding surfaces.
Da der Übergangsbereich erfindungsgemäß in zwei Bögen mit einem dazwischen angeordneten horizontalen Plateau aufgeteilt ist, ist die Materialbeanspruchung bei der Formgebung geringer als bei der Fertigung der bekannten Blechsohlen. Insbesondere werden die Gefahrer einer Rissbildung und einer unerwünscht starken Materialschwächung in den Biegebereichen reduziert.Since the transition region according to the invention is divided into two arcs with a horizontal plateau arranged therebetween, the material stress in the shaping is lower than in the production of the known sheet-metal soles. In particular, the risk of cracking and undesirably high material weakening in the bending areas are reduced.
Das Höhenniveau der beiden Saugmundkanten wird entgegen der aus dem Stand der Technik bekannten Ausführungen nicht durch den Scheitelpunkt eines Bogens, sondern durch die Lage des horizontalen Plateaus bestimmt. Die Ausrichtung der von den Saugmundkanten aufgespannten Fläche an der Unterseite des Saugmundes bleibt daher auch bei einer Radiusänderung des ersten Bogens, beispielsweise aufgrund von Fertigungs- oder Werkzeugtoleranzen, erhalten. Insbesondere kann bei der Auslegung und Fertigung der Blechgleitsohle auch der Radius des ersten Bogens unabhängig von den weiteren geometrischen Vorgabewerten frei variiert werden, solange der erste Bogen noch auf dem ursprünglich vorgesehenen Bereich des Plateaus endet.The height level of the two Saugmundkanten is contrary to the known from the prior art embodiments not determined by the vertex of an arc, but by the position of the horizontal plateau. The orientation of the surface spanned by the suction mouth edges on the underside of the suction mouth therefore remains even with a radius change of the first sheet, for example due to manufacturing or tool tolerances. In particular, in the design and manufacture of the sheet metal soleplate, the radius of the first arc can be independent of the other geometric Default values are freely varied as long as the first sheet still ends on the originally intended area of the plateau.
Dabei ist zu berücksichtigen, dass zur Erzielung optimaler Saugeigenschaften für die Saugmundkante kleine Radien von beispielsweise 0,5 mm angestrebt werden, die bei einer üblichen Blechdicke zwischen 0,4 mm bis 1,5 mm nicht ohne weiteres erreichbar sind. Zur Ermittlung des optimalen Radius des ersten Bogens sind deshalb typischerweise unter Abwägung von fertigungstechnischen und ökonomischen Gesichtspunkten sowie unter Berücksichtigung der Saugeigenschaften einer mit der Blechgleitsohle ausgerüsteten Staubsaugerdüse orientierende Versuche zur Festlegung des optimalen Radius durchzuführen. Im Rahmen einer solchen Optimierung kann erfindungsgemäß der Radius des ersten Bogens bei gleichzeitiger Verringerung der Breite des Plateaus vergrößert oder bei gleichzeitiger Vergrößerung der Breite des Plateaus verringert werden, wobei die weiteren geometrischen Vorgabewerte unverändert bleiben. Der Radius des ersten Bogens liegt im Rahmen der Erfindung vorzugsweise zwischen 0,3 mm und 2 mm, besonders bevorzugt zwischen 0,5 mm und 1 mm. Das Plateau weist dabei in Längsrichtung vorzugsweise eine Breite zwischen 1 mm und 2 mm auf.It should be noted that in order to achieve optimum suction properties for the suction mouth edge small radii of, for example, 0.5 mm are sought, which are not readily available at a conventional sheet thickness between 0.4 mm to 1.5 mm. To determine the optimum radius of the first sheet are therefore typically carrying out a consideration of manufacturing and economic aspects and taking into account the suction properties of a equipped with the metal soleplate vacuum cleaner nozzle oriented experiments to determine the optimum radius. In the context of such an optimization, according to the invention, the radius of the first arc can be increased while reducing the width of the plateau or can be reduced while increasing the width of the plateau, the further geometric default values remaining unchanged. The radius of the first arc is within the scope of the invention preferably between 0.3 mm and 2 mm, more preferably between 0.5 mm and 1 mm. The plateau preferably has a width between 1 mm and 2 mm in the longitudinal direction.
Im Rahmen einer bevorzugten Ausgestaltung der Erfindung ist vorgesehen, dass die hintere und/oder die vordere Saugmundwand im Wesentlichen senkrecht verläuft. Bei einem Winkel der Aufgleitflächen zwischen 30° und 60° gegenüber der Horizontalen ergibt sich dann ein Außenwinkel zwischen den Saugmundwänden und den jeweils zugeordneten Aufgleitflächen zwischen 120° und 150°, der erfindungsgemäß in den ersten Bogen und den zweiten Bogen aufgeteilt ist.Within the scope of a preferred embodiment of the invention, it is provided that the rear and / or the front suction mouth wall runs essentially vertically. At an angle of the sliding surfaces between 30 ° and 60 ° with respect to the horizontal then there is an external angle between the suction mouth walls and the respectively associated sliding surfaces between 120 ° and 150 °, which is divided according to the invention in the first arc and the second arc.
Die schräg verlaufenden Aufgleitflächen müssen im Rahmen der Erfindung nicht völlig gerade verlaufen, sondern können auch ohne Einschränkung über ihre gesamte Länge oder abschnittsweise von der Unterseite der Blechgleitsohle aus gesehen leicht konvex oder konkav gewölbt sein, wobei zur Bestimmung des Winkels zwischen der Aufgleitfläche und der Horizontalen eine mittlere Steigung der Aufgleitfläche gegenüber der Horizontalen zugrunde zu legen ist.The obliquely extending sliding surfaces need not be completely straight in the context of the invention, but can also be seen without restriction over their entire length or sections seen from the bottom of the sheet metal sole slightly curved convex or concave, wherein for determining the angle between the sliding surface and the horizontal an average slope of the sliding surface relative to the horizontal is to be based.
Wenn bei der Fertigung der Blechgleitsohle eine bei der Auslegung festgelegte Sollbreite des Plateaus aus fertigungstechnischen Gründen nicht erreicht wird, ist dennoch eine exakte Höhenausrichtung der Saugmundkanten gewährleistet, solange das Plateau nicht vollständig verschwindet. Um Fertigungstoleranzen auszugleichen und eine geringfügige Variation des Radius des ersten Bogens zu ermöglichen, wird gemäß einer bevorzugten Ausgestaltung des erfindungsgemäßen Verfahrens zur Auslegung der Blechgleitsohle eine Sollbreite des Plateaus von etwa 1,5 mm gewählt.If during manufacture of the sheet metal sole a specified in the design target width of the plateau for manufacturing reasons is not achieved, yet an exact height alignment of Saugmundkanten is guaranteed, as long as the plateau does not disappear completely. To compensate for manufacturing tolerances and to allow a slight variation of the radius of the first sheet, a desired width of the plateau of about 1.5 mm is selected according to a preferred embodiment of the method according to the invention for the design of the sheet metal sole.
Die Art und Ausgestaltung einer Staubsaugerdüse, die mit der erfindungsgemäßen Blechgleitsohle ausgerüstet ist, ist nicht eingeschränkt. Besonders geeignet ist die erfindungsgemäße Blechgleitsohle jedoch für Staubsaugerdüsen, die keine zusätzlich angetriebenen Reinigungseinrichtungen, wie beispielsweise eine Bürstenwalze, aufweisen. Bei solchen statischen Düsen hängt die Saugleistung größtenteils von dem Saugluftstrom im Bereich des Saugmundes und insbesondere von der Gestaltung und Ausrichtung der Saugmundkanten ab. Besonders wichtig ist eine exakte Ausrichtung der beiden Saugmundkanten, wenn die Düse nicht ausschließlich mit den Saugmundkanten, sondern mit Rollen und/oder mit Gleitflächen auf dem zu reinigenden Boden aufliegt.The type and configuration of a vacuum cleaner nozzle, which is equipped with the sheet-metal sole according to the invention, is not limited. However, the sheet metal sole according to the invention is particularly suitable for vacuum cleaner nozzles, which have no additionally driven cleaning devices, such as a brush roller. In such static nozzles, the suction power depends largely on the suction air flow in the region of the suction mouth and in particular on the design and orientation of Saugmundkanten. Particularly important is an exact alignment of the two Saugmundkanten when the nozzle rests not exclusively with the Saugmundkanten, but with rollers and / or with sliding surfaces on the floor to be cleaned.
Die Erfindung wird im Folgenden anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung erläutert. Es zeigen:
- Fig. 1
- einen Längsschnitt einer erfindungsgemäßen Blechgleitsohle,
- Fig. 2a
- eine Detailansicht eines Übergangsbereichs zwischen einer Saugmundwand und einer Aufgleitfläche bei einer erfindungsgemäßen Blechgleitsohle,
- Fig. 2b
- den Übergangsbereich zwischen der Saugmundwand und der Aufgleitfläche bei einer Ausgestaltung gemäß dem Stand der Technik,
- Fig. 3
- eine Staubsaugerdüse mit einer erfindungsgemäßen Blechgleitsohle in einer Ansicht von unten.
- Fig. 1
- a longitudinal section of a sheet-metal sole according to the invention,
- Fig. 2a
- a detailed view of a transition region between a suction mouth wall and a sliding surface in a sheet-metal sole according to the invention,
- Fig. 2b
- the transition region between the suction mouth wall and the sliding surface in a configuration according to the prior art,
- Fig. 3
- a vacuum cleaner nozzle with a sheet metal sole according to the invention in a view from below.
In
Claims (9)
- A sheet metal sliding base (1) for a vacuum cleaner nozzle (2) produced by means of sheet metal forming, with a transversely extending suction orifice (3) that is formed on its underside and defined by a front and a rear suction orifice wall (5a, 5b), and with obliquely aligned slide-on surfaces (4a, 4b) in front of and behind the suction orifice (3), wherein the transition area (6a, 6b) between a suction orifice wall (5a, 5b) and the assigned slide-on surface (4a, 4b) respectively features a suction orifice edge; wherein the suction orifice walls (5a, 5b) respectively transform into a horizontal plateau (8a, 8b) in the form of a first arc (7a, 7b) that forms a suction orifice edge and the plateau (8a, 8b) has a width (B) between 0.5 mm and 4 mm in the longitudinal direction; and wherein the plateau (8a, 8b) is followed by a second arc (9a, 9b) that transforms into the assigned obliquely extending slide-on surface (4a, 4b).
- The sheet metal sliding base according to claim 1, characterized in that the angles (α, α') formed between the slide-on surfaces (4a, 4b) and the horizontal (H) respectively lie between 30 ° and 60 °.
- The sheet metal sliding base according to claim 1 or 2, characterized in that the rear and/or the front suction orifice wall (5a, 5b) essentially extends vertically.
- The sheet metal sliding base according to one of claims 1 to 3, characterized in that the exterior angle (β, β') between the front suction orifice wall (5a) and the front slide-on surface (4a) and/or between the rear suction orifice wall (5b) and the rear slide-on surface (4b) lies between 120 ° and 150 °.
- The sheet metal sliding base according to one of claims 1 to 4, characterized in that the radius of the first arc (7a, 7b) lies between 0.3 mm and 2 mm.
- The sheet metal sliding base according to claim 5, characterized in that the radius of the first arc (7a, 7b) lies between 0.5 mm and 1 mm.
- The sheet metal sliding base according to one of claims 1 to 6, characterized in that the plateau (8a, 8b) has a width (B) between 1 mm and 2 mm in the longitudinal direction.
- The sheet metal sliding base according to one of claims 1 to 6, characterized in that the sheet metal sliding base (1) is produced of a metal sheet with a thickness between 0.4 mm and 1.5 mm.
- The sheet metal sliding base according to one of claims 1 to 8, characterized in that at least one receptacle for a roller and/or at least one sliding projection (13) is formed in the sheet metal sliding base (1).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200710009958 DE102007009958B4 (en) | 2007-03-01 | 2007-03-01 | Sheet-metal sole and method for its design |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1964501A2 EP1964501A2 (en) | 2008-09-03 |
| EP1964501A3 EP1964501A3 (en) | 2009-10-07 |
| EP1964501B1 true EP1964501B1 (en) | 2014-09-24 |
Family
ID=39432570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20080003617 Active EP1964501B1 (en) | 2007-03-01 | 2008-02-28 | Sheet metal sliding base plate for vacuum cleaner nozzle |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1964501B1 (en) |
| CN (1) | CN101254081B (en) |
| DE (1) | DE102007009958B4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11564544B2 (en) | 2020-01-28 | 2023-01-31 | New Ermes Europe S.R.L. | Adapter device for a cordless electric vacuum cleaner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2468300B8 (en) * | 2009-03-03 | 2016-07-06 | Dyson Technology Ltd | A floor tool for a surface treating appliance having means to reduce rearwards skipping |
| FR2965165B1 (en) * | 2010-09-24 | 2013-07-12 | Seb Sa | VACUUM CLEANER SCRATCH RULES |
| FR2965164B1 (en) | 2010-09-24 | 2012-10-12 | Seb Sa | VACUUM CLEANER BALANCING SKATE |
| DE102010043515B4 (en) | 2010-11-05 | 2014-10-16 | BSH Bosch und Siemens Hausgeräte GmbH | Suction nozzle arrangement and vacuum cleaner |
| DE102011081838A1 (en) | 2010-11-05 | 2012-05-10 | BSH Bosch und Siemens Hausgeräte GmbH | Suction nozzle, process for their preparation and vacuum cleaner equipped therewith |
| KR20160026269A (en) * | 2014-08-29 | 2016-03-09 | 삼성전자주식회사 | Suction nozzle and vacuum cleaner having the same |
| DE102015101019A1 (en) * | 2015-01-23 | 2016-07-28 | Wessel-Werk Gmbh | Plastic sliding sole for a vacuum cleaner nozzle |
| FR3035582B1 (en) * | 2015-04-29 | 2017-06-02 | Seb Sa | VACUUM SUCKER SOLE |
| FR3035583B1 (en) * | 2015-04-29 | 2017-12-01 | Seb Sa | VACUUM SUCKER SOLE |
| EP3634193A1 (en) | 2017-06-06 | 2020-04-15 | Alfred Kärcher SE & Co. KG | Floor nozzle device, cleaning roller for textile surface cleaning and suction machine |
| EP3488752B1 (en) * | 2017-11-23 | 2021-12-29 | Wessel-Werk GmbH | Floor nozzle for a vacuum cleaner |
| US11224319B2 (en) * | 2017-12-11 | 2022-01-18 | New Ermes Europe S.R.L. | Base plate for a vacuum cleaner suction head for the suction of fine dust and large debris |
| JP1641037S (en) | 2018-09-18 | 2019-09-09 | ||
| USD953673S1 (en) | 2020-02-17 | 2022-05-31 | New Ermes Europe S.R.L. | Head of a vacuum cleaner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE1960386U (en) * | 1966-12-30 | 1967-05-18 | Siemens Elektrogeraete Gmbh | VACUUM CLEANER. |
| DE7621523U1 (en) * | 1976-07-07 | 1978-01-19 | Wessel, Hans, 5226 Reichshof | SLIDING SOLE FOR VACUUM NOZZLE |
| DE7833705U1 (en) * | 1978-11-13 | 1979-04-26 | Vorwerk & Co Interholding Gmbh, 5600 Wuppertal | SLIDING PLATE FOR VACUUM NOZZLE |
| DD155293A1 (en) * | 1980-12-16 | 1982-06-02 | Harald Frank | FLOOR PLATE FOR VACUUM CLEANER |
| DE4243244C2 (en) * | 1992-12-19 | 1999-11-04 | Miele & Cie | Wheeled floor nozzle for vacuum cleaners |
| US5471707A (en) * | 1993-05-29 | 1995-12-05 | Daewoo Electronics Co., Ltd. | Assembly for a vacuum cleaner having a sound-absorbing system |
| DE19800388C2 (en) * | 1998-01-08 | 1999-12-02 | Wessel Werk Gmbh | Suction head for vacuum cleaner |
| DE29900713U1 (en) * | 1999-01-16 | 1999-06-24 | Wessel Werk Gmbh | Suction head for vacuum cleaner |
| DE10105371A1 (en) * | 2001-02-06 | 2002-08-14 | Wessel Werk Gmbh | Suction head for household canister vacuum cleaners |
-
2007
- 2007-03-01 DE DE200710009958 patent/DE102007009958B4/en not_active Expired - Fee Related
-
2008
- 2008-02-28 EP EP20080003617 patent/EP1964501B1/en active Active
- 2008-02-29 CN CN2008100822585A patent/CN101254081B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11564544B2 (en) | 2020-01-28 | 2023-01-31 | New Ermes Europe S.R.L. | Adapter device for a cordless electric vacuum cleaner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101254081A (en) | 2008-09-03 |
| DE102007009958A1 (en) | 2008-09-04 |
| CN101254081B (en) | 2010-10-06 |
| EP1964501A2 (en) | 2008-09-03 |
| DE102007009958B4 (en) | 2013-08-01 |
| EP1964501A3 (en) | 2009-10-07 |
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