EP0441752A1 - Device for varying the flow of a hair-dryer - Google Patents

Device for varying the flow of a hair-dryer Download PDF

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Publication number
EP0441752A1
EP0441752A1 EP91810084A EP91810084A EP0441752A1 EP 0441752 A1 EP0441752 A1 EP 0441752A1 EP 91810084 A EP91810084 A EP 91810084A EP 91810084 A EP91810084 A EP 91810084A EP 0441752 A1 EP0441752 A1 EP 0441752A1
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EP
European Patent Office
Prior art keywords
flow
rotor
ring
hair
inner ring
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP91810084A
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German (de)
French (fr)
Inventor
Peter Schmidiger
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SPEMOT AG
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SPEMOT AG
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Publication of EP0441752A1 publication Critical patent/EP0441752A1/en
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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/04—Hot-air producers
    • A45D20/08—Hot-air producers heated electrically
    • A45D20/10—Hand-held drying devices, e.g. air douches
    • A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands
    • A45D20/122—Diffusers, e.g. for variable air flow
    • A45D20/124—Diffusers, e.g. for variable air flow comprising rotating elements

Definitions

  • the present invention relates to a flow variator for hair dryers according to the preamble of patent claim 1.
  • Pulsators for hair dryers serve to swirl the even air flow generated by the fan of the hair dryer and to convert it into a pulsating air flow that dries the hair faster.
  • Such a pulsator is known, for example, from DE-OS-32 25 944. It has a rotor which is mounted coaxially to the air outlet of the hair dryer and has one or more inclined vanes which can be detected by the air flow of the hair dryer fan and which is rotated by the air flow in such a way that a swirling of the exiting air flow is caused, which causes a pulsating flow to the air flow hair to be dried and thus faster drying.
  • This known pulsator has the disadvantage, among other things, that it does not offer the possibility of adjusting the pulse frequency and / or the pulse strength of the air stream flowing into the hair, as is necessary in order to achieve optimal hairdressing results using the latest hairdressing techniques.
  • the present invention is therefore based on the object of providing a flow variator of the type mentioned at the outset, which does not have the disadvantages of the known pulsators and which can be easily fitted onto a conventional hair dryer if required.
  • FIGS. 1 and 2 the described advantageous embodiment variant of a flow variator according to the invention is a substantially tubular device which comprises an outer ring 1 and an inner ring 2 with a rotor 3 arranged centrally therein.
  • the rotor 3 has on its front side, ie the air outlet side, a flat or slightly convex cover 6, which according to FIG. 2 has two spatula-like cutouts 7, 7 ', which are triangular in their outer areas and slit-shaped in their central areas .
  • the side of the rotor 3 opposite the air flow generated by the fan of the hair dryer advantageously has curved lamellae 8, as can be seen from FIG. 3.
  • the depth of these lamellae advantageously increases from the center of the rotor 3 towards its periphery, as can be clearly seen from FIGS. 4 and 5.
  • the latter is intended to receive a bearing mandrel 11 which can be inserted into a central bore 12 which is located in the center of three star-shaped webs 13, 13 'and 13' of the rotor housing 2.
  • the bearing sleeve 10 and the bearing mandrel 11 advantageously form a maintenance-free bearing, around which the rotor 2, driven by the air flow generated by the hair dryer fan, can be freely rotated.
  • the inner ring 2 has a substantially all-round groove 14 in its front area, which is only interrupted by webs, not shown in the drawing, which the front area 15 of the inner ring 2 with this connects.
  • this groove 14 is almost completely covered by the outer ring 1 in such a way that almost no air can pass through it.
  • the flow variator according to the invention is placed by means of the inner ring 2, must exit in this setting of the outer ring 1 through the two cutouts 7, 7 '.
  • the rotor 3 is set into only a slow rotation and a low-frequency, strongly pulsed air stream strikes the hair lying behind the flow variator in the direction of flow. This is the result of a strong air flow on the hair during each cut-out, whereas little or no air hits the hair between the cut-offs.
  • This low-frequency, strongly pulsed air flow causes a rhythmic movement of the hair, which is thereby dispersed so that the air can wash around it from all sides, which leads to very rapid drying.
  • the flow variator according to the invention enables air flows for drying the hair generate that can go from strongly pulsed to gentle and almost even.
  • the second advantageous embodiment variant of a flow variator according to the invention described here, as shown in FIG. 6, differs from the one described above in particular in that its actuation and the central mounting of the rotor are implemented somewhat differently.
  • this embodiment variant of a flow variator according to the invention at least one slot 24 in the outer ring 1 and correspondingly at least one pin 25 in the inner ring 2 are provided. They interact in the manner described above and serve for the axial displacement of the outer ring 1 relative to the inner ring 2, this displacement being caused by a relative rotation of the two rings 1 and 2.
  • a coupling ring 26 which can be placed on the outer ring 1 enables the flow variator to be easily assembled by pushing the outer ring 1 over the inner ring 2 in such a way that the pin 25 engages in the slot 24, whereupon to close the slot 24 of the coupling ring 26 from behind is pushed onto the outer ring 1 so that a second pin 27 provided thereon engages in the end region of the slot 24.
  • the coupling ring 26 and the outer ring 1 are connected to one another by means of known snap closures which are not shown in the drawing.
  • a rotor 3 is advantageously used, the fins 8 of which can be straight.
  • the use of a cover for the conical rotor base 9 is dispensed with.
  • the rotor base 9 can be designed centrally so that a bearing bush 30 into which a bearing pin 29 has previously been inserted can be pressed into it.
  • the two design variants of a flow variator according to the invention can be constructed differently in detail than is apparent from the foregoing and the drawing. Individual structural details of one embodiment variant can be combined with those of the other without any problems. It must be ensured that the possibility that peripheral ducts can be opened more or less must always exist in order to be able to produce the changes in the exiting air flow described above.
  • the rotor 3 and with it the fins 8 can be designed differently. It is also possible to provide only an axial displacement of these two components relative to one another instead of a possibility of rotating the outer ring 1 on the inner ring 2. Then the bearing of the rotor 3 in the inner ring 2 can be designed differently than described above, without thereby deviating from the inventive concept.
  • connection between the flow variator and the hair dryer can of course be adapted to the prevailing conditions, this being possible, for example, by means of a flexibly designed inner ring area.
  • the flow variator can also be designed directly as an integral part of the hair dryer, in which case it may be useful to place an inner ring instead of a sliding outer ring to make the hair dryer housing slidable.
  • all of these constructive modifications compared to the embodiment variants of the invention described above are within the scope of what a person skilled in the art can do without inventive step.

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  • Cleaning And Drying Hair (AREA)

Abstract

In order to generate a flow of air, which is suitable for producing modern hairstyles, at the outlet of a hair-dryer, with a pulse frequency and pulse intensity which can be adjusted infinitely variably, the device according to the invention for varying the flow has a rotor (3) within an inner ring (2) and an outer ring (1) outside said inner ring. Said outer ring is displaceable relative to the inner ring (2) in such a way that a lateral groove (14) on the inner ring can be opened or almost completely closed as desired. The rotor (3) is provided with lamellae (8) which set it in rotary motion by means of the air flowing past them. Furthermore, the rotor (3) is designed such that the flow of air generated by the hair-dryer fan can escape both through cutouts therein and through the abovementioned groove (14). Due to the fact that the cutouts rotate with the rotor (3), an eddying flow of air is produced behind the device for varying the flow and is directed at the hair in a pulsed manner. When the lateral groove (14) is closed, the flow of air is pulsed slowly and blown out in a cylindrical manner and is thus forceful, whereas, when the groove (14) is open, it is blown out in a conical form and pulsed so quickly that it impacts on the hair almost as an even flow and is thus gentle. <IMAGE>

Description

Die vorliegende Erfindung betrifft einen Strömungsvariator für Haartrockner gemäss dem Oberbegriff des Patentanspruchs 1.The present invention relates to a flow variator for hair dryers according to the preamble of patent claim 1.

Pulsatoren für Haartrockner dienen dazu, den gleichmässigen, durch das Gebläse des Haartrockners erzeugten Luftstrom zu verwirbeln und in einen die Haare schneller trocknenden pulsierenden Luftstrom umzuwandeln.Pulsators for hair dryers serve to swirl the even air flow generated by the fan of the hair dryer and to convert it into a pulsating air flow that dries the hair faster.

Beispielsweise aus der DE-OS-32 25 944 ist ein derartiger Pulsator bekannt. Er weist einen koaxial zum Luftauslass des Haartrockners gelagerten Rotor mit einem oder mehreren vom Luftstrom des Haartrockner-Gebläses erfassbaren geneigten Flügel auf, der durch den Luftstrom in Drehung versetzt wird, derart, dass eine Verwirbelung des austretenden Luftstromes verursacht wird, die ein pulsierendes Anströmen des zu trocknenden Haares und damit ein schnelleres Trocknen desselben bewirkt. Dieser bekannte Pulsator weist unter anderen den Nachteil auf, dass er keine Möglichkeit bietet, die Pulsfrequenz und/oder die Pulsstärke des das Haar anströmenden Luftstromes einzustellen, wie dies zwecks Erreichung optimaler Frisierergebnisse mit den neuesten Frisiertechniken erfoderlich ist.Such a pulsator is known, for example, from DE-OS-32 25 944. It has a rotor which is mounted coaxially to the air outlet of the hair dryer and has one or more inclined vanes which can be detected by the air flow of the hair dryer fan and which is rotated by the air flow in such a way that a swirling of the exiting air flow is caused, which causes a pulsating flow to the air flow hair to be dried and thus faster drying. This known pulsator has the disadvantage, among other things, that it does not offer the possibility of adjusting the pulse frequency and / or the pulse strength of the air stream flowing into the hair, as is necessary in order to achieve optimal hairdressing results using the latest hairdressing techniques.

Der vorliegenden Erfindung liegt daher die Aufgabe zu Grunde, einen Strömungsvariator der eingangs erwähnten Art zu schaffen, der die Nachteile der bekannten Pulsatoren nicht aufweist und der bei Bedarf einfach auf einen herkömmlichen Haartrockner aufsetzbar ist.The present invention is therefore based on the object of providing a flow variator of the type mentioned at the outset, which does not have the disadvantages of the known pulsators and which can be easily fitted onto a conventional hair dryer if required.

Erfindungsgemäss wird diese Aufgabe durch einen Strömungsvariator gelöst, wie er im Patentanpruch 1 definiert ist.According to the invention, this object is achieved by a flow variator as defined in patent claim 1.

Im Folgenden werden zwei vorteilhafte Ausführungsvarianten eines erfindungsgemässen Strömungsvariators anhand der Zeichnung beschrieben. In letzterer zeigt

  • Fig. 1 die erste Ausführungsvariante des Strömungsvariators von der Seite,
  • Fig. 2 den Strömungsvariator nach Fig. 1 von vorne, d.h. von der Luftaustrittsseite her,
  • Fig. 3 den in der ersten Ausführungsvariante des Strömungsvariators verwendeten Rotor von hinten, d.h. von der Lufteinlassseite her,
  • Fig. 4 Strömungsvariators im Längsschnitt, mit dem Aussenring in der ersten seiner zwei Endstellungen,
  • Fig. 5 die erste Ausführungsvariante des Strömungsvariators im Längsschnitt, mit dem Aussenring in der zweiten seiner Endstellungen, und
  • Fig. 6 einen Längsschnitt durch die zweite Ausführungsvariante eines erfindungsgemässen Strömungsvariators.
Two advantageous embodiment variants of a flow variator according to the invention are described below with reference to the drawing. In the latter shows
  • 1 shows the first variant of the flow variator from the side,
  • 2 shows the flow variator according to FIG. 1 from the front, ie from the air outlet side,
  • 3 shows the rotor used in the first variant of the flow variator from the rear, ie from the air inlet side,
  • 4 flow variator in longitudinal section, with the outer ring in the first of its two end positions,
  • Fig. 5 shows the first embodiment of the flow variator in longitudinal section, with the outer ring in the second of its end positions, and
  • 6 shows a longitudinal section through the second embodiment variant of a flow variator according to the invention.

Aus den Fig. 1 und 2 ist ersichtlich, dass es sich bei der beschriebenen vorteilhaften Ausführungsvariante eines erfindungsgemässen Strömungsvariators um eine im wesentlichen rohrförmige Vorrichtung handelt, die einen Aussenring 1 und ein Innenring 2 mit einem zentral darin angeordneten Rotor 3 umfasst.It can be seen from FIGS. 1 and 2 that the described advantageous embodiment variant of a flow variator according to the invention is a substantially tubular device which comprises an outer ring 1 and an inner ring 2 with a rotor 3 arranged centrally therein.

Aus den Fig. 4 und 5 ist ersichtlich, dass sich der Aussenring 1 auf dem Innenring 2 verdrehen lässt, wobei die Verdrehung durch mindestens einen Schlitz 4 im Rotorgehäuse 2 und mindestens einen Stift 5, der an der Innenseite des Aussenringes 1 sitzt, begrenzt wird. Man erkennt auch, dass die Verdrehung des Aussenringes 1 auf dem Innenring 2 zu einer achsialen Verschiebung des Aussenringes 1 auf dem Innenring 2 führt, derart, dass der Aussenring 1 sich auch gegenüber dem Rotor 3 linear verschiebt. Durch entsprechende Formgebung des oder der Schlitze 4 kann die lineare Verschiebung des Aussenringes 1 bezüglich des Verdrehungswinkels gesteuert werden. Der Rotor 3 weist auf seiner Vorderseite, d.h. der Luftaustrittsseite, eine ebene oder leicht bombierte Abdeckung 6 auf, die gemäss Fig. 2 zwei spickelartige Ausschnitte 7, 7′ aufweist, die in ihren äusseren Bereichen dreieck- und in ihren zentralen Bereichen schlitzförmig gestaltet sind.4 and 5 that the outer ring 1 can be rotated on the inner ring 2, the rotation being limited by at least one slot 4 in the rotor housing 2 and at least one pin 5 which is located on the inside of the outer ring 1 . You can also see that the rotation of the outer ring 1 on the inner ring 2 leads to an axial displacement of the outer ring 1 on the inner ring 2 such that the outer ring 1 also shifts linearly with respect to the rotor 3. The linear displacement of the outer ring 1 with respect to the angle of rotation can be controlled by appropriate shaping of the slot or slots 4. The rotor 3 has on its front side, ie the air outlet side, a flat or slightly convex cover 6, which according to FIG. 2 has two spatula-like cutouts 7, 7 ', which are triangular in their outer areas and slit-shaped in their central areas .

Die dem vom Gebläse des Haartrockners erzeugten Luftstrom entgegengesetzte Seite des Rotors 3 weist vorteilhafterweise gebogene Lamellen 8 auf, wie sie aus Fig. 3 ersichtlich sind. Die Tiefe dieser Lamellen nimmt dabei vorteilhafterweise vom Zentrum des Rotors 3 gegen dessen Peripherie hin zu, wie dies aus den Fig. 4 und 5 gut ersichtlich ist. Dies kann dadurch erzielt werden, dass der zwischen der Abdeckung 6 und den Lamellen 8 liegende Rotorboden 9 kegelförmig ausgebildet wird. Vorteilhafterweise trägt er zentral eine Lagerhülse 10. Letztere ist dazu bestimmt, einen Lagerdorn 11 aufzunehmen, der in eine zentrale Bohrung 12 einsetzbar ist, die im Zentrum von drei sternförmig angeordneten Stegen 13, 13′ und 13˝ des Rotorgehäuses 2 liegt. Die Lagerhülse 10 und der Lagerdorn 11 bilden dabei ein vorteilhafterweise wartungsfreies Lager, um das sich der Rotor 2, durch den vom Haartrocknergebläse erzeugten Luftstrom angetrieben, frei drehen lässt.The side of the rotor 3 opposite the air flow generated by the fan of the hair dryer advantageously has curved lamellae 8, as can be seen from FIG. 3. The depth of these lamellae advantageously increases from the center of the rotor 3 towards its periphery, as can be clearly seen from FIGS. 4 and 5. This can be achieved in that the rotor base 9 lying between the cover 6 and the fins 8 is conical. It advantageously carries a bearing sleeve 10 centrally. The latter is intended to receive a bearing mandrel 11 which can be inserted into a central bore 12 which is located in the center of three star-shaped webs 13, 13 'and 13' of the rotor housing 2. The bearing sleeve 10 and the bearing mandrel 11 advantageously form a maintenance-free bearing, around which the rotor 2, driven by the air flow generated by the hair dryer fan, can be freely rotated.

Wie aus den Fig. 4 und 5 ersichtlich ist, weist der Innenring 2 in seinem vorderen Bereich eine im wesentlichen rundum gehende Nut 14 auf, die lediglich von in der Zeichnung nicht dargestellten Stegen unterbrochen ist, die den vordersten Bereich 15 des Innenringes 2 mit diesem verbindet. In der in Fig. 4 dargestellten, vorderen Endlage des Aussenringes 1 ist diese Nut 14 durch den Aussenring 1 fast vollständig verdeckt, derart, dass fast keine Luft durch sie hindurchtreten kann.As can be seen from FIGS. 4 and 5, the inner ring 2 has a substantially all-round groove 14 in its front area, which is only interrupted by webs, not shown in the drawing, which the front area 15 of the inner ring 2 with this connects. In the front end position of the outer ring 1 shown in FIG. 4, this groove 14 is almost completely covered by the outer ring 1 in such a way that almost no air can pass through it.

Der grösste Teil des Luftstromes des Haartrockners, auf dessen in der Zeichnung nicht dargestellten Auslass der erfindungsgemässe Strömungsvariator mittels des Innenringes 2 aufgesetzt ist, muss in dieser Einstellung des Aussenringes 1 durch die beiden Ausschnitte 7, 7′ austreten. Dadurch wird der Rotor 3 in eine lediglich langsame Drehung versetzt und ein niedrigfrequenter stark gepulster Luftstrom trifft auf die in Strömungsrichtung hinter dem Strömungsvariator liegenden Haare. Dies ist die Folge davon, dass bei jedem Ausschnitt-Durchgang ein starker Luftstrom auf die Haare auftritt, wogegen zwischen den Ausschnitt-Durchgängen wenig oder keine Luft auf die Haare auftrifft. Dieser niedrigfrequente stark gepulste Luftstrom bewirkt eine rhytmische Bewegung der Haare, die dadurch auseinandergetrieben werden, so dass die Luft sie von allen Seiten umspühlen kann, was zu einer sehr schnellen Trocknung führt.Most of the air flow of the hair dryer, on the outlet, not shown in the drawing, the flow variator according to the invention is placed by means of the inner ring 2, must exit in this setting of the outer ring 1 through the two cutouts 7, 7 '. As a result, the rotor 3 is set into only a slow rotation and a low-frequency, strongly pulsed air stream strikes the hair lying behind the flow variator in the direction of flow. This is the result of a strong air flow on the hair during each cut-out, whereas little or no air hits the hair between the cut-offs. This low-frequency, strongly pulsed air flow causes a rhythmic movement of the hair, which is thereby dispersed so that the air can wash around it from all sides, which leads to very rapid drying.

Wenn demgegenüber der Aussenring 1 gemäss Fig. 5 möglichst weit über den Innenring 2 zurückgeschoben wird, wird die Nut 14 freigelegt und ein grosser Teil des Luftstromes kann durch sie aus dem Strömungsvariator austreten. Durch die Formgebung des Aussenringes 1 in seinem vorderen Bereich wird diese Luft nach vorne umgelenkt, derart, dass sich ein kegelförmiger Luftstrom bildet, dessen Strömungsgeschwindigkeit mit zunehmendem Luftstromquerschnitt abnimmt. Der Rotor 3 dreht sich in dieser Einstellung des Aussenringes 1 sehr schnell, was bewirkt, dass der zentrale, durch die Ausschnitte 7, 7′ austretende Luftstrom hochfrequent, resp. praktisch ungepulst ist. Der Luftstrom als ganzes ist weniger virulent als bei geschlossener Nut 14 und wirkt dadurch als Diffusor und eignet sich gut für das Erzeugen sogenannter Softstyle-Frisuren.5, on the other hand, if the outer ring 1 is pushed back as far as possible over the inner ring 2, the groove 14 is exposed and a large part of the air flow can escape through it from the flow variator. Due to the shape of the outer ring 1 in its front area, this air is deflected forward, in such a way that a conical air flow is formed, the flow speed of which decreases with increasing air flow cross section. The rotor 3 rotates very quickly in this setting of the outer ring 1, which causes the central, through the cutouts 7, 7 'emerging air stream high frequency, respectively. is practically unpulsed. The air flow as a whole is less virulent than when the groove 14 is closed and thus acts as a diffuser and is well suited for creating so-called soft style hairstyles.

Durch die Möglichkeit, den Aussenring 1 stufenlos zwischen den beiden in den Fig. 4 und 5 dargestellten Endlagen einzustellen, ermöglicht es der erfindungsgemässe Strömungsvariator, Luftströme für das Trocknen der Haare zu erzeugen, die von stark gepulst bis zu sanft und nahezu gleichmässig gehen können.Due to the possibility of continuously adjusting the outer ring 1 between the two end positions shown in FIGS. 4 and 5, the flow variator according to the invention enables air flows for drying the hair generate that can go from strongly pulsed to gentle and almost even.

Der Fachmann erkennt, dass dadurch dem Coiffeur erstmals ein Mittel in die Hand gegeben wird, das es ermöglicht, ohne bewegungsbedingte grosse Ermüdung eine Vielzahl von Frisuren zu ermöglichen.Those skilled in the art recognize that this is the first time that the hairdresser has been given a means that enables a large number of hairstyles to be achieved without great fatigue due to movement.

Die zweite hier beschriebene vorteilhafte Ausführungsvariante eines erfindungsgemässen Strömungsvariators, wie sie in Fig. 6 dargestellt ist, unterscheidet sich von der hiervor beschriebenen insbesondere dadurch, dass seine Betätigung und die zentrale Lagerung des Rotors etwas anders realisiert sind. In dieser Ausführungsvariante eines erfindungsgemässen Strömungsvariators sind zumindest ein Schlitz 24 im Aussenring 1 und entsprechend zumindest ein Stift 25 im Innenring 2 vorgesehen. Sie wirken in der hiervor beschriebenen Art zusammen und dienen der achsialen Verschiebung des Ausenringes 1 gegenüber dem Innenring 2, wobei diese Verschiebung durch eine relative Verdrehung der beiden Ringe 1 und 2 hervorgerufen wird. Ein auf den Aussenring 1 aufsetzbarer Überwurfring 26 ermöglicht einen einfachen Zusammenbau des Strömungsvariators, indem der Aussenring 1 derart über den Innenring 2 geschoben werden kann, dass der Stift 25 in den Schlitz 24 eingreift, worauf zwecks Verschliessen des Schlitzes 24 der Überwurfring 26 von hinten derart auf den Aussenring 1 geschoben wird, dass ein an ihm vorgesehener zweiter Stift 27 in den Endbereich des Schlitzes 24 eingreift. Vorteilhafterweise werden der Überwurfring 26 und der Aussenring 1 mittels bekannter und in der Zeichnung nicht dargestellter Schnappverschlüsse miteinander verbunden.The second advantageous embodiment variant of a flow variator according to the invention described here, as shown in FIG. 6, differs from the one described above in particular in that its actuation and the central mounting of the rotor are implemented somewhat differently. In this embodiment variant of a flow variator according to the invention, at least one slot 24 in the outer ring 1 and correspondingly at least one pin 25 in the inner ring 2 are provided. They interact in the manner described above and serve for the axial displacement of the outer ring 1 relative to the inner ring 2, this displacement being caused by a relative rotation of the two rings 1 and 2. A coupling ring 26 which can be placed on the outer ring 1 enables the flow variator to be easily assembled by pushing the outer ring 1 over the inner ring 2 in such a way that the pin 25 engages in the slot 24, whereupon to close the slot 24 of the coupling ring 26 from behind is pushed onto the outer ring 1 so that a second pin 27 provided thereon engages in the end region of the slot 24. Advantageously, the coupling ring 26 and the outer ring 1 are connected to one another by means of known snap closures which are not shown in the drawing.

In dieser Ausführungsvariante eines erfindungsgemässen Strömungsvariators wird vorteilhafterweise ein Rotor 3 verwendet, dessen Lamellen 8 gerade sein können. Auf die Verwendung einer Abdeckung des kegelnförmigen Rotorbodens 9 wird verzichtet. Dies führt zu einer anderen Konstruktion des Rotorlagers, als sie hiervor bezüglich der ersten Ausführungsvariante eines erfindungsgemässen Strömungsvariators beschrieben ist, insbesondere wenn sichergestellt werden soll, dass es nicht verschmutzt. Der Rotorboden 9 kann diesbezüglich zentral so gestaltet werden, dass in ihn eine Lagerbüchse 30, in die vorgängig ein Lagerstift 29 eingesetzt worden ist, eingepresst werden kann. Durch das Einpressen des Lagerstiftes 29 in eine mit dem Innenring 2 solidarische Lagerpfanne 31, wird das Rotorlager, das vorteilhafterweise wartungsfrei ist, fertig montiert und der Rotor 3 mit dem Innenring 2 verbunden.In this embodiment variant of a flow variator according to the invention, a rotor 3 is advantageously used, the fins 8 of which can be straight. The use of a cover for the conical rotor base 9 is dispensed with. This leads to a different construction of the Rotor bearing, as described above with respect to the first embodiment variant of a flow variator according to the invention, in particular if it is to be ensured that it does not become dirty. In this regard, the rotor base 9 can be designed centrally so that a bearing bush 30 into which a bearing pin 29 has previously been inserted can be pressed into it. By pressing the bearing pin 29 into a bearing socket 31 that is integral with the inner ring 2, the rotor bearing, which is advantageously maintenance-free, is fully assembled and the rotor 3 is connected to the inner ring 2.

Es ist selbstverständlich, dass die beiden Ausführungsvarianten eines erfindungsgemässen Strömungsvariators im Detail anders aufgebaut werden können, als sich dies aus dem Vorgesagten und der Zeichnung ergibt. Einzelne konstruktive Details der einen Ausführungsvariante können dabei problemlos mit solchen der anderen kombiniert werden. Es ist dabei darauf zu achten, dass die Möglichkeit, dass periphere Kanäle mehr oder weniger geöffnet werden können, immer gegeben sein muss, um die hiervor beschriebenen Veränderungen im austretenden Luftstrom erzeugen zu können. Insbesondere der Rotor 3 und mit ihm die Lamellen 8 können anders gestaltet werden. Auch ist es möglich, an Stelle einer Verdrehmöglichkeit des Aussenringes 1 auf dem Innenring 2 lediglich eine achsiale Verschiebbarkeit dieser beiden Komponenten relativ zueinender vorzusehen. Dann kann die Lagerung des Rotors 3 im Innenring 2 anders gestaltet werden als hiervor beschrieben, ohne dass dadurch vom erfinderischen Konzept abgewichen wird. Weiter kann selbstverständlich die Verbindung zwischen dem Strömungsvariator und dem Haartrockner den jeweils herrschenden Verhältnissen angepasst werden, wobei dies beispielsweise durch einen flexibel gestalteten Innenringbereich realisierbar ist. Der Strömungsvariator kann auch direkt als fester Bestandteil des Haartrockners ausgelegt werden, in welchem Falle es sinnvoll sein kann, an Stelle eines verschiebbaren Aussenringes einen Innenring gegenüber dem Haartrocknergehäuse verschiebbar zu gestalten. All diese konstruktiven Modifikationen gegenüber den hiervor beschriebenen Ausführungsvarianten der Erfindung liegen aber im Rahmen dessen, was ein Fachmann ohne erfinderisches Dazutun leisten kann.It goes without saying that the two design variants of a flow variator according to the invention can be constructed differently in detail than is apparent from the foregoing and the drawing. Individual structural details of one embodiment variant can be combined with those of the other without any problems. It must be ensured that the possibility that peripheral ducts can be opened more or less must always exist in order to be able to produce the changes in the exiting air flow described above. In particular, the rotor 3 and with it the fins 8 can be designed differently. It is also possible to provide only an axial displacement of these two components relative to one another instead of a possibility of rotating the outer ring 1 on the inner ring 2. Then the bearing of the rotor 3 in the inner ring 2 can be designed differently than described above, without thereby deviating from the inventive concept. Furthermore, the connection between the flow variator and the hair dryer can of course be adapted to the prevailing conditions, this being possible, for example, by means of a flexibly designed inner ring area. The flow variator can also be designed directly as an integral part of the hair dryer, in which case it may be useful to place an inner ring instead of a sliding outer ring to make the hair dryer housing slidable. However, all of these constructive modifications compared to the embodiment variants of the invention described above are within the scope of what a person skilled in the art can do without inventive step.

Claims (6)

Strömungsvariator für Haartrockner, enthaltend in einem Rotorgehäuse einen durch den Luftstrom des Haartrockners beaufschlagbaren, mit Lamellen (8) versehenen Rotor (3), der den Querschnitt des Rotorgehäuses zumindest nahezu vollständig ausfüllt, dadurch gekennzeichnet, dass das Rotorgehäuse als Innenring (2) ausgebildet ist, der in einem Aussenring (1) achsial verschiebbar gelagert ist und in seinem luftaustrittseitigen Bereich lateral mindestens eine zumindest nahezu rundum laufende Nut (14) aufweist, die durch die achsiale Verschiebung des Aussenringes (1) gegenüber dem Innenring (2) mehr oder weniger öffenbar ist.Flow variator for hair dryers, containing in a rotor housing a rotor (3) which is acted upon by the air flow of the hair dryer and is provided with fins (8) and which at least almost completely fills the cross section of the rotor housing, characterized in that the rotor housing is designed as an inner ring (2) , which is axially displaceably mounted in an outer ring (1) and laterally in its air outlet area has at least one groove (14) running at least almost all around, which can be opened more or less by the axial displacement of the outer ring (1) relative to the inner ring (2) is. Strömungsvariator gemäss Anspruch 1, dadurch gekennzeichnet, dass der Innen- oder der Aussenring (2, 1) einen gebogenen Schlitz (4, 24) aufweist, in den ein mit dem Aussen- oder dem Innenring (1, 2) verbundener Stift (5, 25) derart eingreift, dass ein Verdrehen der beiden Ringe (1, 2) relativ zueinander die achsiale Verschiebung des einen Ringes bezüglich dem anderen Ring bewirkt.Flow variator according to claim 1, characterized in that the inner or outer ring (2, 1) has a curved slot (4, 24) into which a pin (5, connected to the outer or inner ring (1, 2) 25) engages in such a way that turning the two rings (1, 2) relative to one another brings about the axial displacement of one ring with respect to the other ring. Strömungsvariator nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Rotor (3) bis auf Ausschnitte (7, 7′) verschlossen ist und dass die Ausschnitte (7, 7′) im Rotor (3) in ihrem peripheren Bereich dreieckförmig sind, wogegen sie in ihrem zentralen Bereich in Rechtecke übergehen.Flow variator according to claim 1 or 2, characterized in that the rotor (3) is closed except for cutouts (7, 7 ′) and that the cutouts (7, 7 ′) in the rotor (3) are triangular in their peripheral region, whereas they go into rectangles in their central area. Strömungsvariator nach Anspruch 3, dadurch gekennzeichnet, dass die Ausschnitte (7, 7′) je eine Kante aufweisen, die im wesentlichen parallel zu einer Radiuslinie verläuft, wogegen je eine periphere Dreieckskante in einem Winkel zu dieser Radiuslinie verläuft.Flow variator according to claim 3, characterized in that the cutouts (7, 7 ′) each have an edge which runs essentially parallel to a radius line, whereas a peripheral triangular edge runs at an angle to this radius line. Strömungsvariator nach Anspruch 2, dadurch gekennzeichnet, dass der Aussenring (1) mit einem Überwurfring (26) wirkverbunden ist.Flow variator according to claim 2, characterized in that the outer ring (1) is operatively connected to a coupling ring (26). Strömungsvariator nach Anspruch 5, dadurch gekennzeichnet, dass der Überwurfring (26) einen zweiten Stift (27) trägt, der in einen Endbereich des Schlitzes (24) eingreift und diesen verschliesst.Flow variator according to claim 5, characterized in that the coupling ring (26) carries a second pin (27) which engages in an end region of the slot (24) and closes it.
EP91810084A 1990-02-06 1991-02-06 Device for varying the flow of a hair-dryer Withdrawn EP0441752A1 (en)

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CH37890A CH682292A5 (en) 1990-02-06 1990-02-06
CH378/90 1990-02-06

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Cited By (6)

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Publication number Priority date Publication date Assignee Title
US5161317A (en) * 1991-11-18 1992-11-10 Asia World Trade Limited Hair dryer attachment
WO1995017113A1 (en) * 1993-12-23 1995-06-29 Braun Aktiengesellschaft Adjustable pulsator
DE4422085C1 (en) * 1994-06-24 1995-12-14 Braun Ag Front part, especially pulsator, and hair dryer
EP0784947A1 (en) * 1996-01-19 1997-07-23 Faco S.A. Functionally modifiable diffuser for hair dryer and the like
US5689896A (en) * 1994-06-24 1997-11-25 Braun Aktiengesellschaft Pulsator for a hair dryer
WO2017098200A1 (en) * 2015-12-11 2017-06-15 Dyson Technology Limited A motor and a hair care appliance comprising a motor

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US4132360A (en) * 1977-08-22 1979-01-02 General Electric Company Pulsating hair dryer
FR2446615A1 (en) * 1979-01-18 1980-08-14 Velecta Sa Deflector fitted to hair dryer to adjust air flow - has rotating deflector plate with high and low pressure chambers
US4295283A (en) * 1979-05-21 1981-10-20 Conair Corporation Air diffuser for a hair dryer
DE3225944A1 (en) * 1981-07-13 1983-03-10 Sunbeam Corp., 60521 Oak Brook, Ill. Pulsator for a hair-drier
EP0284690A2 (en) * 1987-03-30 1988-10-05 Tai-Her Yang Hair dryer

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Publication number Priority date Publication date Assignee Title
US4132360A (en) * 1977-08-22 1979-01-02 General Electric Company Pulsating hair dryer
FR2446615A1 (en) * 1979-01-18 1980-08-14 Velecta Sa Deflector fitted to hair dryer to adjust air flow - has rotating deflector plate with high and low pressure chambers
US4295283A (en) * 1979-05-21 1981-10-20 Conair Corporation Air diffuser for a hair dryer
DE3225944A1 (en) * 1981-07-13 1983-03-10 Sunbeam Corp., 60521 Oak Brook, Ill. Pulsator for a hair-drier
EP0284690A2 (en) * 1987-03-30 1988-10-05 Tai-Her Yang Hair dryer

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0543558A1 (en) * 1991-11-18 1993-05-26 Asia World Trade Ltd A hair dryer attachment
US5161317A (en) * 1991-11-18 1992-11-10 Asia World Trade Limited Hair dryer attachment
CN1049812C (en) * 1991-11-18 2000-03-01 亚洲世界贸易公司 Hair dryer attachement
US5720107A (en) * 1993-12-23 1998-02-24 Braun Aktiengesellschaft Adjustable pulsator
WO1995017113A1 (en) * 1993-12-23 1995-06-29 Braun Aktiengesellschaft Adjustable pulsator
DE4422085C1 (en) * 1994-06-24 1995-12-14 Braun Ag Front part, especially pulsator, and hair dryer
US5689896A (en) * 1994-06-24 1997-11-25 Braun Aktiengesellschaft Pulsator for a hair dryer
EP0784947A1 (en) * 1996-01-19 1997-07-23 Faco S.A. Functionally modifiable diffuser for hair dryer and the like
WO2017098200A1 (en) * 2015-12-11 2017-06-15 Dyson Technology Limited A motor and a hair care appliance comprising a motor
CN106989039A (en) * 2015-12-11 2017-07-28 戴森技术有限公司 Motor and the hair care appliance including motor
US10064470B2 (en) 2015-12-11 2018-09-04 Dyson Technology Limited Motor and a hair care appliance comprising a motor
RU2685846C1 (en) * 2015-12-11 2019-04-23 Дайсон Текнолоджи Лимитед Motor and hair care device comprising a motor
CN106989039B (en) * 2015-12-11 2019-05-07 戴森技术有限公司 Motor and hair care appliance including motor

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