EP0259395B1 - Hair dryer - Google Patents

Hair dryer Download PDF

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Publication number
EP0259395B1
EP0259395B1 EP87901371A EP87901371A EP0259395B1 EP 0259395 B1 EP0259395 B1 EP 0259395B1 EP 87901371 A EP87901371 A EP 87901371A EP 87901371 A EP87901371 A EP 87901371A EP 0259395 B1 EP0259395 B1 EP 0259395B1
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EP
European Patent Office
Prior art keywords
hair dryer
lighter
gas
blower
guide
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.)
Expired - Lifetime
Application number
EP87901371A
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German (de)
French (fr)
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EP0259395A1 (en
Inventor
Yücel YAMAC
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Braun GmbH
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Braun GmbH
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Publication date
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Publication of EP0259395A1 publication Critical patent/EP0259395A1/en
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Publication of EP0259395B1 publication Critical patent/EP0259395B1/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
    • A45D20/06—Hot-air producers heated otherwise than electrically; ventilated by muscle power
    • 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
    • A45D20/06—Hot-air producers heated otherwise than electrically; ventilated by muscle power
    • A45D2020/065—Hot-air producers heated otherwise than electrically; ventilated by muscle power heated by gas or fuel

Definitions

  • the invention relates to a hair dryer according to the preamble of the main claim.
  • the object underlying the invention is to use a conventional disposable or quartz pocket lighter or an exchangeable gas container to construct a travel-proof, safe, light and simple hair dryer.
  • An ordinary gas pocket lighter or a gas container is used as a heat-generating part in a hairdryer housing equipped with a suction and a discharge opening and a battery-operated blower.
  • the lighter or the gas container must be inserted through a recess in the hair dryer housing so that the ignition and gas outlet on the soleplate are pressed by the thumb pressure exerted on the sole.
  • the lighter or the gas tank also serve to actuate a switch, so that the blower is started up shortly before the ignition.
  • the air baffle accommodated in the housing forms a connecting gap with the air baffle between the receiving chamber and the air flow channel which has a curve towards the hot air blowing nozzle.
  • the combustion of the gas takes place in the connecting gap in such a way that an ideal, complete combustion takes place by supplying air or oxygen.
  • the resulting warming of the air flow is sufficient to dry the hair.
  • the hair dryer (1) shown schematically in a side view in FIG. 1 without a housing cover has a blower (2), a lighter receiving chamber (6) delimited from the air flow channel (5) by an air baffle (3) and an air deflector (4).
  • the free end (7) of the air baffle (3) is bent into the air flow channel (5)
  • the free end (8) of the air baffle (4) is bent into the lighter receiving chamber (6).
  • the two free-standing ends (7, 8) form a connecting gap (9) between the air flow channel (5) and the lighter receiving chamber (6).
  • the lighter receiving chamber (6) has two lighter guide strips (12) and the limiting strips (10, 11).
  • the limiting strip (10) attached to the side of the air deflection plate (4) has a throttle stop lug (13).
  • the limiting strip (11) attached on the fan side has a mounting device (14) for the housing cover (1 a, FIG. 3).
  • the spring plate (16) attached to the front surface (1 b) with a screw connection (15) ensures pressure on the inserted lighter (17, Fig. 2).
  • the fins (18) placed in the lighter receiving chamber (6) serve for the contact of the blower current line.
  • FIG. 2 shows a schematic side view of the hair dryer (1) with the inserted lighter (17) without a housing cover.
  • the gas lever (17a) of the lighter (17) engages on the gas lever stop lug (13) of the limiting strip (10) in such a way that when the lighter (17) is pushed further into the housing (1) the gas lever (17a) yields, so that both the Gas outlet as well as the ignition of the gas take place.
  • the end face (19) of the lighter (17) compresses the fins (18) of the blower power line, so that the blower (2) is started to rotate in the direction of the arrow (2a).
  • the blower draws in the air perpendicular to the plane of the drawing and blows it through the air flow channel (5) in the direction of the arrow (2b) through the warm air blowing nozzle (20).
  • a suction effect occurs in the connecting gap (9), so that fresh air enters the lighter receiving chamber (6) through the recess (21, Fig. 4), in particular through the lighter cooling slots (22, Fig. 4) .
  • This causes the lighter (17) to cool and the lighter flame (17b) to receive more oxygen per unit of time, which enables complete combustion to take place.
  • the combustion takes place in the connecting gap (9).
  • the resulting heat is sucked into the air flow duct (5) and mixed with the blower air using the curve (5a) and the semicircular arc (4a) of the air deflection plate (4) and blown out as warm air through the warm air blowing nozzle (20) (2c).
  • air temperatures of around 70 ° C were measured on the warm air outlet nozzle, which correspond to the temperature values of conventional hair dryers.
  • Fig. 3 the housing cover (1 a) is shown with the air intake opening (24) and with the thermodot (25) which changes color in the event of overheating.
  • the housing cover (1 a) is designed so that it closes both the mounting surface (1 c) and the edges of the air guide and air deflection plates (3, 4) in an airtight manner in the assembled state.
  • Fig. 4 the hair dryer housing shown schematically in Fig. 1 is shown without a housing cover in perspective.
  • the air baffles and air baffle plates (3, 4), the limiting strips (10, 11) and the lighter guide strips (12) are arranged perpendicular to the mounting surface (1 c).
  • An aluminum sheet (26) is attached as heat insulation on the mounting surface (1 c), as well as on the inside of the housing cover (1 a).
  • the recess (21) is designed such that its shape is adapted to the contours of the lighter (17) perpendicular to its longitudinal axis.
  • the battery box (27) can be seen on the back of the mounting surface (1 c).
  • Fig. 5 shows the hair dryer housing (1) without housing cover (1 a) in a perspective view.
  • the most important components of the hair dryer according to the invention are shown here in a side view, seen obliquely from behind.
  • the lighter (17) is to be inserted into the recess (21) in the direction of the arrow (17c) so that the gas lever (17a) is directed upwards and the gas outlet valve (28) is directed downwards.
  • the gas flows directly into the opening of the connecting gap (9) on the lighter receptacle, where the combustion takes place.
  • the motor (29) with its shaft (30) is shown with the fan (2) removed, so that the vertical position of the shaft axis relative to the mounting surface (1c) is illustrated.
  • FIG. 6 the hairdryer is shown with the cover (31) of the battery box (27) removed and with the lighter (17).
  • the batteries (32), the back of the motor (29) and the Mon Day pillar (33) of the cover (31) are housed in the battery box (27).
  • the lighter (17) is a model that can be refilled through a valve (34).
  • a start mark (35) on the side surface of the lighter (17), if necessary, is a visual indicator of how deep the lighter (17) is to be inserted into the housing so that the hair dryer is put into operation.
  • the start marking (35) can be seen in FIGS. 2, 5, 6 and 7.
  • FIGs 7 and 8 the handling of the hair dryer during operation is shown in perspective.
  • the hair dryer is put into operation by pressing the thumb on the lighter base (23) in such a way that gas outflow, ignition of the gas and start of the fan occur at about the same time .
  • the air (24a) drawn in through the air intake opening (24) heats up, as described initially, and is blown out in the direction of the arrow (2c) through the warm air blowing nozzle (20).
  • the back pressure of the gas lever (17a) must be overcome by pressing your thumb lightly. This is necessary for security reasons.
  • the lighter (17) jumps back a few millimeters from its position due to the spring pressure of its gas lever (17a), which automatically switches off the device.
  • the pressure of the spring plate (16) keeps the lighter (17) in its guide in the hairdryer housing, so that the lighter is prevented from accidentally falling out of the hairdryer housing.
  • the lighter is removed from the housing guide by a slight pull and can be used for its usual purpose. Attaching a thermodot (25) to the housing cover (1a) offers additional optical security. Flame escaping from the warm air blowing nozzle (20) is therefore excluded because the combustion takes place ideally through the supply of air or oxygen to the lighter flame, so that the length of the lighter flame is reduced to approximately one tenth of its original length.
  • FIGS. 9 and 10 show the hair dryer according to the invention without a housing cover in an embodiment for disposable lighters (40) with flint ignition.
  • the components of the hair dryer illustrated and described in FIGS. 1 to 8 have remained the same apart from the special U-guide (36), the position of the spring plate (16a) and the position of the slats (18a).
  • the U guide (36) is equipped with a rubber cylinder (37).
  • the U-guide (36) is attached to the mounting surface (1c) with the help of screws (38, 39) so that the longitudinal axis of the guide is at an angle to the front surface (1 b) and its open side on the fan side with the spring plate (16a) is delimited.
  • the ignition wheel (41) rubs against the rubber cylinder (37)
  • the lighter (40) jumps in the direction of the spring plate (16a) until the throttle lever (42) starts the rubber cylinder (37) so that the gas lever is pressed simultaneously with the ignition and the gas is discharged.
  • the spring plate (16a) bends in such a way that it makes contact with the fins (18a) and thereby starts the fan (2) shortly before the actual ignition (FIG. 10).
  • the gas combustion in the connecting gap (9) and the hot air discharge through the hot air blowing nozzle (20) take place as in the previous descriptions.
  • FIG. 11 shows the hair dryer according to the invention, the U-guide (36) and the disposable lighter (40) in a perspective view. From this it can be seen that the shape of the recess (21 a) is adapted to the contours of the disposable lighter (40) transversely to its longitudinal axis.
  • the gas lighter can be easily replaced by a gas container, in which case the ignition device of any type is fixed in the housing of the hair dryer.
  • the ignition device can be actuated either by a separate switch attached to the hairdryer housing or by means of the gas container by pushing it into the hairdryer.

Abstract

PCT No. PCT/DE87/00087 Sec. 371 Date Jan. 4, 1988 Sec. 102(e) Date Jan. 4, 1988 PCT Filed Mar. 3, 1987 PCT Pub. No. WO87/05194 PCT Pub. Date Sep. 11, 1987.The invention is directed to a hair dryer in which the heating device, the switch, the igniting mechanism and the gas tank are provided by a conventional gas-operated pocket lighter (17) preferably equipped with a battery ignition or piezoquartz ignition or, in an alternative embodiment, by a disposable lighter using flint ignition (40). It is also within the scope of the invention to use an exchangeable gas tank, with the igniting device being fixedly arranged in the hair dryer housing. The ignition process is started as the lighter (17 or 40) is inserted into the recess (21 or 21a) of the hair dryer housing, with the blower (2) being started briefly before by contact of the laminae (18 or 18a). The blower current is supplied by either disposable batteries or rechargeable accumulators. The hair dryer of the invention is turned off simply by easing the thumb pressure, which ensures at the same time that the appliance does not continue running accidentally when put away. If desired, the lighter (17 or 40) can be withdrawn from the hair dryer housing (1) for further customary use. By virture of its complete independence of electrical outlets, the hair dryer of the invention is perfectly safe for use in a wet environment and ready for use anywhere. In addition, its low weight and compact dimensions make it ideal for travelling. The appliance affords simple and low-cost manufacture.

Description

Die Erfindung betrifft einen Haartrockner nach der Gattung des Hauptanspruchs.The invention relates to a hair dryer according to the preamble of the main claim.

Der bisherige Stand der Technik weist Haartrockner auf, die entweder einen Gastank und einen komplizierten Schalt- und Zündmechanismus oder einen mit Heizdrähten versehenen Wärmespeicher aufweisen. Beide Versionen haben hohes Gewicht und komplizierte, teure Bauteile. Sie sind unhandlich und weisen nur geringe Reisetauglichkeit auf.The previous state of the art has hair dryers which have either a gas tank and a complicated switching and ignition mechanism or a heat accumulator provided with heating wires. Both versions are heavy and have complicated, expensive components. They are unwieldy and have little suitability for travel.

Ausgehend von diesem Stand der Technik, besteht die der Erfindung zugrundeliegende Aufgabe darin, durch Benutzung eines herkömmlichen Wegwerf- oder Quarztaschenfeuerzeuges bzw. eines austauschbaren Gasbehälters einen reisetüchtigen, sicheren, leichten und einfachen Haartrockner zu konstruieren.Based on this prior art, the object underlying the invention is to use a conventional disposable or quartz pocket lighter or an exchangeable gas container to construct a travel-proof, safe, light and simple hair dryer.

Diese Aufgabe wird erfindungsgemäss durch einen Haartrockner mit dem Merkmal des Hauptanspruchs gelöst. In einem mit einer Ansaug- und einer Ausblasöffnung sowie einem batteriebetriebenen Gebläse ausgestatteten Haartrocknergehäuse findet ein gewöhnliches Gastaschenfeuerzeug bzw. ein Gasbehälter als hitzeerzeugender Teil Verwendung. Das Feuerzeug bzw. der Gasbehälter ist durch eine Aussparung in das Haartrocknergehäuse so einzuschieben, dass durch den auf die Sohle ausgeübten Daumendruck der Zündung und Gasauslass in sich vereinigende Gashebel an der Gashebelanschlagnase betätigt wird. Das Feuerzeug bzw. der Gastank dienen zugleich zur Betätigung eines Schalters, so dass kurz vor der Zündung auch das Gebläse in Betrieb gesetzt wird. Das im Gehäuse untergebrachte Luftleitblech bildet mit dem Luftumlenkblech einen Verbindungsspaltzwischen der Aufnahmekammer und dem zur Warmluftausblasdüse hin eine Kurve aufweisenden Luftströmungskanal. Die Verbrennung des Gases findet in dem Verbindungsspalt in der Weise statt, dass durch Luft- bzw. Sauerstoffzufuhr eine ideale, restlose Verbrennung erfolgt. Die dadurch entstandene Erwärmung des Luftstromes ist ausreichend zur Trocknung der Haare.This object is achieved according to the invention by a hairdryer with the feature of the main claim. An ordinary gas pocket lighter or a gas container is used as a heat-generating part in a hairdryer housing equipped with a suction and a discharge opening and a battery-operated blower. The lighter or the gas container must be inserted through a recess in the hair dryer housing so that the ignition and gas outlet on the soleplate are pressed by the thumb pressure exerted on the sole. The lighter or the gas tank also serve to actuate a switch, so that the blower is started up shortly before the ignition. The air baffle accommodated in the housing forms a connecting gap with the air baffle between the receiving chamber and the air flow channel which has a curve towards the hot air blowing nozzle. The combustion of the gas takes place in the connecting gap in such a way that an ideal, complete combustion takes place by supplying air or oxygen. The resulting warming of the air flow is sufficient to dry the hair.

Der erfindungsgemässe Haartrockner bietet folgende Vorzüge und Effekte:

  • a) Sicherheit durch den Verzicht an das Stromnetz.
  • b) Unabhängigkeit von beschränkten Kabellängen, von verschiedenen Steckdosenausführungen in verschiedenen Ländern. Dadurch absolut überall einsatzbereit, wie z. B. im Auto, auf Campingplätzen, Badestränden etc.
  • c) In den Abmessungen kaum grösser als eine Zigarettenpackung und geringes Gewicht (Prototypen weisen etwa 250 g Gewicht auf, welches etwa um 30% geringer ist als das Gewicht herkömmlicher Reisehaartrockner).
  • d) Keine Wartezeiten für die Erwärmung der Ausblasluft. Sofortige Warmluftabgabe.
  • e) Bei Nichtgebrauch des Gerätes kann das Feuerzeug bzw. der Gasbehälter herausgenommen und zum üblichen Zweck verwendet werden. I n diesem Fall ist der Haartrockner ohne Feuerzeug auch in Kinderhänden vollkommen harmlos.
  • f) Kein Flammenaustritt aus der Warmluftausblasdüse hinaus, weil durch Frischluft- bzw. Sauerstoffzufuhr die Feuerzeugflamme auf etwa ein Zehntel ihrer ursprünglichen Länge reduziert wird und in dem Verbindungsspalt ideal verbrennt. Durch das Einleiten des Zündvorganges nach dem Einschalten des Gebläses wird aufgrund des in der Brennkammer vorhandenen Unterdrucks eine sichere Zündung durch Vermeidung von Verpuffungen gewährleistet. Der durch die Gasentzündung normalerweise auftretende Überdruck führt somit nicht zu einer Selbstauslöschung der Gasflamme.
  • g) Sobald die Ausblasdüse des Haartrockners durch die Haare oder durch irgendeinen Gegenstand verdeckt wird, löscht die Flamme sofort aus. Dies geschieht in der Weise, dass die durch Versperrung der Warmluftausblasdüse angestaute Luft durch den Verbindungsspalt zurückströmend die Feuerzeugflamme ausbläst. Dadurch ist eine zusätzliche Sicherheit gewährleistet.
  • h) Das wärmespendende Gasfeuerzeug bzw. der Gasbehälter kann beliebig nachgefüllt werden bzw. bei Benutzung eines Wegwerffeuerzeuges bzw. -gasbehälters ausgetauscht werden.
  • i) Das an die Gehäuseoberfläche angebrachte Thermodot bildet eine optische Sicherheit. Sollte aus irgendeinem Grund eine kritische Temperatur erreicht werden, verfärbt sich das Thermodot. Dann ist das Gerät auszuschalten. Man lockert den mit dem Daumen auf das Feuerzeug ausgeübten leichten Druck. Somit springt das Feuerzeug durch den Federdruck seines Gashebels einige Millimeter aus seiner Lage zurück und dadurch ist sowohl der Gasaustritt als auch der Betrieb des Gebläses unterbrochen. Dies geschieht auch, wenn man den Haartrockner aus der Hand lässt bzw. abstellt. Somit ist jene Sicherheit gegeben, dass das Gerät nicht unbeabsichtigt weiterläuft.
  • j) Der erfindungsgemässe Haartrockner ist einfach und billig herzustellen.
The hair dryer according to the invention offers the following advantages and effects:
  • a) Security by not using the power grid.
  • b) Independence from limited cable lengths, from different socket versions in different countries. This means that it can be used absolutely anywhere, e.g. B. in the car, on campsites, beaches etc.
  • c) The dimensions hardly larger than a pack of cigarettes and light in weight (prototypes weigh around 250 g, which is about 30% less than the weight of conventional travel hair dryers).
  • d) No waiting times for the air to be heated. Immediate warm air delivery.
  • e) When the device is not in use, the lighter or gas container can be removed and used for the usual purpose. In this case, the hair dryer without a lighter is completely harmless even in children's hands.
  • f) No flame escapes from the warm air outlet nozzle because the lighter flame is reduced to approximately one tenth of its original length by supplying fresh air or oxygen and burns ideally in the connecting gap. By initiating the ignition process after the fan has been switched on, reliable ignition by avoiding deflagrations is ensured due to the negative pressure present in the combustion chamber. The overpressure normally caused by gas ignition does not lead to self-extinguishing of the gas flame.
  • g) As soon as the blow-out nozzle of the hair dryer is covered by the hair or by any object, the flame extinguishes immediately. This is done in such a way that the air pent-up by blocking the warm air blowing nozzle blows out the lighter flame through the connecting gap. This ensures additional security.
  • h) The heat-giving gas lighter or the gas container can be refilled as desired or replaced when using a disposable lighter or gas container.
  • i) The thermodot attached to the housing surface forms an optical security. If for some reason a critical temperature is reached, the thermodot changes color. Then switch off the device. The light pressure applied to the lighter with the thumb is released. The lighter springs back a few millimeters from its position due to the spring pressure of its gas lever, and this causes both the gas outlet and the operation of the blower to be interrupted. This also happens if you leave the hairdryer out of your hand or put it down. This ensures that the device does not continue to run unintentionally.
  • j) The hair dryer according to the invention is simple and inexpensive to manufacture.

In der Zeichnung ist ein Ausführungsbeispiel des Gegenstandes der Erfindung dargestellt. Es zeigen:

  • Fig. 1 einen Haartrockner in einer schematischen Darstellung ohne den Gehäusedeckel;
  • Fig. 2 eine schematische Seitenansicht des Haartrockners mit dem eingeschobenen Feuerzeug in Betrieb (ohne Gehäusedeckel) ;
  • Fig. 3 eine perspektivische Darstellung des Ge-. häusedeckels;
  • Fig. 4 eine perspektivische Darstellung des Gehäuses ohne Gehäusedeckel in einer Seitenansicht, schräg von vorne gesehen;
  • Fig. 5 eine perspektivische Darstellung des Gehäuses (ohne Gehäusedeckel) mit dem Feuerzeug und abgenommenem Gebläsepropeller in einer Seitenansicht, schräg von hinten gesehen;
  • Fig. 6 den Haartrockner mit abgenommenem Batteriekastendeckel mit dem Feuerzeug perspektivisch dargestellt (Rückseitenansicht schräg von vorne) ;
  • Fig. 7 eine perspektivische Darstellung des Haartrockners in Betrieb (Handhabung mit der linken Hand);
  • Fig. 8 eine perspektivische Darstellung des Haartrockners bei der Handhabung mit der rechten Hand (Vorderansicht schräg von der Seite gesehen);
  • Fig. 9 den Haartrockner in einer Ausführung für Wegwerffeuerzeuge mit Feuersteinzündung; schematische Seitenansicht ohne Gehäusedeckel, aber mit eingeschobenem Feuerzeug;
  • Fig. 10 den Haartrockner für Wegwerffeuerzeuge in Betrieb, schematische Seitenansicht, ohne Deckel;
  • Fig. 11 den Haartrockner für Wegwerffeuerzeuge, perspektivisch in einer Vorderansicht dargestellt, schräg von der Seite gesehen (mit U-Führung und Wegwerffeuerzeug).
In the drawing, an embodiment of the object of the invention is shown. Show it:
  • Figure 1 shows a hair dryer in a schematic representation without the housing cover.
  • 2 shows a schematic side view of the hair dryer with the inserted lighter in operation (without housing cover);
  • Fig. 3 is a perspective view of the Ge. house cover;
  • Figure 4 is a perspective view of the housing without housing cover in a side view, seen obliquely from the front.
  • 5 shows a perspective view of the housing (without the housing cover) with the lighter and the removed fan propeller in a side view, seen obliquely from behind;
  • 6 shows the hairdryer with the battery box cover removed with the lighter in perspective (rear view obliquely from the front);
  • Fig. 7 is a perspective view of the Hair dryer in operation (handling with the left hand);
  • 8 shows a perspective illustration of the hair dryer when handled with the right hand (front view seen obliquely from the side);
  • 9 shows the hairdryer in an embodiment for disposable lighters with flint ignition; schematic side view without housing cover, but with inserted lighter;
  • 10 the hair dryer for disposable lighters in operation, schematic side view, without cover;
  • Fig. 11 the hair dryer for disposable lighters, shown in perspective in a front view, seen obliquely from the side (with U-guide and disposable lighter).

Der in Fig. 1 ohne Gehäusedeckel in einer Seitenansicht schematisch dargestellte Haartrockner (1) weist ein Gebläse (2), eine durch Luftleitblech (3) und Luftumlenkblech (4) vom Luftströmungskanal (5) abgegrenzte Feuerzeugaufnahmekammer (6) auf. Das freistehende Ende (7) des Luftleitbleches (3) ist in den Luftströmungskanal (5) gebogen, das freistehende Ende (8) des Luftumlenkbleches (4) ist in die Feuerzeugaufnahmekammer (6) gebogen. Die beiden freistehenden Enden (7, 8) bilden einen Verbindungsspalt (9) zwischen dem Luftströmungskanal (5) und der Feuerzeugaufnahmekammer (6). Die Feuerzeugaufnahmekammer (6) weist zwei Feuerzeugführungsleisten (12) und die Begrenzungsleisten (10, 11 ) auf. Die an der Seite des Luftumlenkbleches (4) angebrachte Begrenzungsleiste (10) weist eine Gashebelanschlagnase (13) auf. Die gebläseseitig angebrachte Begrenzungsleiste (11) besitzt eine Montagevorrichtung (14) für den Gehäusedeckel (1 a, Fig. 3). Das an der Frontfläche (1 b) mit einer Schraubverbindung (15) angebrachte Federblech (16) sorgt für den Andruck auf das eingeschobene Feuerzeug (17, Fig. 2). Die in der Feuerzeugaufnahmekammer (6) plazierten Lamellen (18) dienen für den Kontakt der Gebläsestromleitung.The hair dryer (1) shown schematically in a side view in FIG. 1 without a housing cover has a blower (2), a lighter receiving chamber (6) delimited from the air flow channel (5) by an air baffle (3) and an air deflector (4). The free end (7) of the air baffle (3) is bent into the air flow channel (5), the free end (8) of the air baffle (4) is bent into the lighter receiving chamber (6). The two free-standing ends (7, 8) form a connecting gap (9) between the air flow channel (5) and the lighter receiving chamber (6). The lighter receiving chamber (6) has two lighter guide strips (12) and the limiting strips (10, 11). The limiting strip (10) attached to the side of the air deflection plate (4) has a throttle stop lug (13). The limiting strip (11) attached on the fan side has a mounting device (14) for the housing cover (1 a, FIG. 3). The spring plate (16) attached to the front surface (1 b) with a screw connection (15) ensures pressure on the inserted lighter (17, Fig. 2). The fins (18) placed in the lighter receiving chamber (6) serve for the contact of the blower current line.

In Fig. 2 ist eine schematische Seitenansicht des Haartrockners (1) mit dem eingeschobenen Feuerzeug (17) ohne Gehäusedeckel dargestellt. Der Gashebel (17a) des Feuerzeuges (17) rastet an der Gashebelanschlagnase (13) der Begrenzungsleiste (10) derart an, dass beim Weiterdrükken des Feuerzeuges (17) in das Gehäuse (1 ) der Gashebel (17a) nachgibt, so dass sowohl der Gasauslass als auch die Zündung des Gases erfolgen. Kurzzeitig vorher drückt die Stirnfläche (19) des Feuerzeuges (17) die Lamellen (18) der Gebläsestromleitung zusammen, so dass das Gebläse (2) in Pfeilrichtung (2a) drehend in Betrieb gesetzt wird. Das Gebläse saugt die Luft senkrecht zur Zeichenebene an, bläst sie durch den Luftströmungskanal (5) in Pfeilrichtung (2b) durch die Warmluftausblasdüse (20) hinaus. Infolge der Gebläseluftströmung im Luftströmungskanal (5) entsteht ein Saugeffekt im Verbindungsspalt (9), so dass durch die Aussparung (21, Fig. 4), insbesondere durch die Feuerzeugkühlungsschlitze (22, Fig. 4), Frischluft in die Feuerzeugaufnahmekammer (6) gelangt. Dies bewirkt, dass das Feuerzeug (17) gekühlt und die Feuerzeugflamme (17b) mehr Sauerstoff pro Zeiteinheit bekommt, wodurch eine restlose Verbrennung stattfinden kann. Die Verbrennung erfolgt in dem Verbindungsspalt (9). Die dadurch entstandene Wärme wird in den Luftströmungskanal (5) angesaugt und mit Hilfe der Kurve (5a) und dem halbkreisförmigen Bogen (4a) des Luftumlenkbleches (4) mit der Gebläseluft vermischt und als Warmluft durch die Warmluftausblasdüse (20) ausgeblasen (2c). Bei der praktischen Erprobung des Gerätes wurden Lufttemperaturen um 70° C an der Warmluftausblasdüse gemessen, die den Temperaturwerten herkömmlicher Haartrockner entsprechen.2 shows a schematic side view of the hair dryer (1) with the inserted lighter (17) without a housing cover. The gas lever (17a) of the lighter (17) engages on the gas lever stop lug (13) of the limiting strip (10) in such a way that when the lighter (17) is pushed further into the housing (1) the gas lever (17a) yields, so that both the Gas outlet as well as the ignition of the gas take place. Shortly beforehand, the end face (19) of the lighter (17) compresses the fins (18) of the blower power line, so that the blower (2) is started to rotate in the direction of the arrow (2a). The blower draws in the air perpendicular to the plane of the drawing and blows it through the air flow channel (5) in the direction of the arrow (2b) through the warm air blowing nozzle (20). As a result of the fan air flow in the air flow channel (5), a suction effect occurs in the connecting gap (9), so that fresh air enters the lighter receiving chamber (6) through the recess (21, Fig. 4), in particular through the lighter cooling slots (22, Fig. 4) . This causes the lighter (17) to cool and the lighter flame (17b) to receive more oxygen per unit of time, which enables complete combustion to take place. The combustion takes place in the connecting gap (9). The resulting heat is sucked into the air flow duct (5) and mixed with the blower air using the curve (5a) and the semicircular arc (4a) of the air deflection plate (4) and blown out as warm air through the warm air blowing nozzle (20) (2c). During the practical testing of the device, air temperatures of around 70 ° C were measured on the warm air outlet nozzle, which correspond to the temperature values of conventional hair dryers.

In Fig. 3 ist der Gehäusedeckel (1 a) mit der Luftansaugöffnung (24) und mit dem im Falle einer Überhitzung sich verfärbenden Thermodot (25) abgebildet. Der Gehäusedeckel (1 a) ist so ausgebildet, dass er im montierten Zustand sowohl die Montagefläche (1 c) als auch die Kanten der Luftleit- und Luftumlenkbleche (3, 4) luftdicht abschliesst.In Fig. 3 the housing cover (1 a) is shown with the air intake opening (24) and with the thermodot (25) which changes color in the event of overheating. The housing cover (1 a) is designed so that it closes both the mounting surface (1 c) and the edges of the air guide and air deflection plates (3, 4) in an airtight manner in the assembled state.

In Fig. 4 ist das in Fig.1 schematisch dargestellte Haartrocknergehäuse ohne Gehäusedeckel perspektivisch abgebildet. Hier istersichtlich, dass die Luftleit- und Luftumlenkbleche (3,4), die Begrenzungsleisten (10, 11) und die Feuerzeugführungsleisten (12) senkrecht zur Montagefläche (1 c) angeordnet sind. Ein Aluminiumblech (26) ist als Hitzeisolierung auf der Montagefläche (1 c) angebracht, desgleichen auch auf der Innenseite des Gehäusedeckels (1 a). Die Aussparung (21 ) ist so ausgebildet, dass ihre Form den Konturen des Feuerzeuges (17) senkrecht zu seiner Längsachse angepasst ist. Eine Feuerzeugdistanzschiene (11 a), die an der gebläseseitigen Begrenzungsleiste (11) angebracht ist, sorgt dafür, dass das Feuerzeug (17) nicht direkt an der Begrenzungsleiste (11) anliegt und Frischluft in die Feuerzeugaufnahmekammer (6) strömen und das Feuerzeug (17) kühlen kann. Bei dieser Darstellung ist auf der Rückseite der Montagefläche (1 c) der Batteriekasten (27) zu sehen.In Fig. 4 the hair dryer housing shown schematically in Fig. 1 is shown without a housing cover in perspective. Here it is obvious that the air baffles and air baffle plates (3, 4), the limiting strips (10, 11) and the lighter guide strips (12) are arranged perpendicular to the mounting surface (1 c). An aluminum sheet (26) is attached as heat insulation on the mounting surface (1 c), as well as on the inside of the housing cover (1 a). The recess (21) is designed such that its shape is adapted to the contours of the lighter (17) perpendicular to its longitudinal axis. A lighter distance rail (11 a), which is attached to the blower-side limiting strip (11), ensures that the lighter (17) does not lie directly on the limiting strip (11) and fresh air flows into the lighter receiving chamber (6) and the lighter (17 ) can cool. In this illustration, the battery box (27) can be seen on the back of the mounting surface (1 c).

Die Fig. 5 zeigt das Haartrocknergehäuse (1) ohne Gehäusedeckel (1 a) in einer perspektivischen Darstellung. Die wichtigsten Bauteile des erfindungsgemässen Haartrockners sind hier in einer Seitenansicht, schräg von hinten gesehen, abgebildet. Das Feuerzeug (17) ist in die Aussparung (21 ) in Pfeilrichtung (17c) so einzustecken, dass der Gashebel (17a) nach oben und das Gasauslassventil (28) nach unten gerichtet ist. Während des Betriebes strömt das Gas direkt in die feuerzeugaufnahmeseitige Öffnung des Verbindungsspaltes (9), wo die Verbrennung stattfindet. Bei dieser Abbildung ist der Motor (29) mit seiner Welle (30) bei abgenommenem Gebläse (2) dargestellt, so dass die senkrechte Lage der Wellenachse zur Montagefläche (1c) verdeutlicht wird.Fig. 5 shows the hair dryer housing (1) without housing cover (1 a) in a perspective view. The most important components of the hair dryer according to the invention are shown here in a side view, seen obliquely from behind. The lighter (17) is to be inserted into the recess (21) in the direction of the arrow (17c) so that the gas lever (17a) is directed upwards and the gas outlet valve (28) is directed downwards. During operation, the gas flows directly into the opening of the connecting gap (9) on the lighter receptacle, where the combustion takes place. In this figure, the motor (29) with its shaft (30) is shown with the fan (2) removed, so that the vertical position of the shaft axis relative to the mounting surface (1c) is illustrated.

In Fig. 6 ist der Haartrockner mit abgenommenem Deckel (31) des Batteriekastens (27) und mit dem Feuerzeug (17) dargestellt. Die Batterien (32), die Rückseite des Motors (29) und die Montagesäule (33) des Deckels (31 ) sind konstruktionsmässig im Batteriekasten (27) untergebracht. Das Feuerzeug (17) ist ein durch ein Ventil (34) nachfüllbares Modell. Eine im Bedarfsfall auf der Seitenfläche des Feuerzeugs (17) angebrachte Startmarkierung (35) ist eine optische Anzeige dafür, wie tief das Feuerzeug (17) in das Gehäuse einzuschieben ist, damit der Haartrockner in Betrieb gesetzt wird. Die Startmarkierung (35) ist in den Figuren 2, 5, 6 und 7 zu sehen.In Fig. 6 the hairdryer is shown with the cover (31) of the battery box (27) removed and with the lighter (17). The batteries (32), the back of the motor (29) and the Mon Day pillar (33) of the cover (31) are housed in the battery box (27). The lighter (17) is a model that can be refilled through a valve (34). A start mark (35) on the side surface of the lighter (17), if necessary, is a visual indicator of how deep the lighter (17) is to be inserted into the housing so that the hair dryer is put into operation. The start marking (35) can be seen in FIGS. 2, 5, 6 and 7.

In den Figuren 7 und 8 ist die Handhabung des Haartrockners während des Betriebes perspektivisch dargestellt. Durch den Einschub des Feuerzeuges (17) in die Aussparung (21 ) an der Frontfläche (1 b) wird mittels Daumendrucks auf die Feuerzeugsohle (23) der Haartrockner so in Betrieb gesetzt, dass etwa gleichzeitig Gasausfluss, Zündung des Gases und Start des Gebläses erfolgt. Die durch die Luftansaugöffnung (24) angesaugte Luft (24a) erwärmt sich, wie anfangs beschrieben, und wird durch die Warmluftausblasdüse (20) in Pfeilrichtung (2c) hinausgeblasen. Während des gesamten Haartrocknungsvorganges ist der Gegendruck des Gashebels (17a) durch leichten Daumendruck zu überwinden. Dies ist aus Gründen der Sicherheit notwendig. Sobald der Daumendruck nachlässt, springt das Feuerzeug (17) durch den Federdruck seines Gashebels (17a) einige Millimeter aus seiner Lage zurück, dadurch ist das Gerät automatisch abgeschaltet. Das Feuerzeug (17) verbleibt jedoch durch den Druck des Federbleches (16) in seiner Führung im Haartrocknergehäuse, so dass ein unbeabsichtigtes Herausfallen des Feuerzeuges aus dem Haartrocknergehäuse vermieden wird. Nach Beendigung des Trocknungsvorganges wird das Feuerzeug durch leichten Zug aus der Führung des Gehäuses herausgenommen und kann zu seinem üblichen Zweck weiterverwendet werden. Die Anbringung eines Thermodots (25) an dem Gehäusedeckel (1a) bietet eine zusätzliche optische Sicherheit. Ein Flammenaustritt aus der Warmluftausblasdüse (20) ist deshalb ausgeschlossen, weil durch die Luft- bzw. Sauerstoffzufuhr zur Feuerzeugflamme die Verbrennung ideal stattfindet, so dass die Länge der Feuerzeugflamme auf etwa ein Zehntel ihrer ursprünglichen Länge reduziert wird.In Figures 7 and 8 the handling of the hair dryer during operation is shown in perspective. By pushing the lighter (17) into the recess (21) on the front surface (1 b), the hair dryer is put into operation by pressing the thumb on the lighter base (23) in such a way that gas outflow, ignition of the gas and start of the fan occur at about the same time . The air (24a) drawn in through the air intake opening (24) heats up, as described initially, and is blown out in the direction of the arrow (2c) through the warm air blowing nozzle (20). During the entire hair drying process, the back pressure of the gas lever (17a) must be overcome by pressing your thumb lightly. This is necessary for security reasons. As soon as the thumb pressure subsides, the lighter (17) jumps back a few millimeters from its position due to the spring pressure of its gas lever (17a), which automatically switches off the device. However, the pressure of the spring plate (16) keeps the lighter (17) in its guide in the hairdryer housing, so that the lighter is prevented from accidentally falling out of the hairdryer housing. After completion of the drying process, the lighter is removed from the housing guide by a slight pull and can be used for its usual purpose. Attaching a thermodot (25) to the housing cover (1a) offers additional optical security. Flame escaping from the warm air blowing nozzle (20) is therefore excluded because the combustion takes place ideally through the supply of air or oxygen to the lighter flame, so that the length of the lighter flame is reduced to approximately one tenth of its original length.

Fig. 9 und 10 zeigen den erfindungsgemässen Haartrockner ohne Gehäusedeckel in einer Ausführung für Wegwerffeuerzeuge (40) mit Feuersteinzündung. Die in den Figuren 1 bis 8 dargestellten und beschriebenen Bauteile des Haartrockners sind bis auf die spezielle U-Führung (36), die Lage des Federbleches (16a) und die Lage der Lamellen (18a) gleichgeblieben. Die U - Führung (36) ist mit einem Gummizylinder (37) ausgestattet. Die durch den Gummizylinder (37) durchgehende Schraube (37a) und deren Mutter (37b) fixieren ihn an der Innenseite der U-Führung (36, Fig. 9, 10, 11). Die U-Führung (36) ist auf der Montagefläche (1c) mit Hilfe von Schrauben (38, 39) so angebracht, dass die Längsachse der Führung schräg zur Frontfläche (1 b) steht und ihre offene Seite gebläseseitig mit dem Federblech (16a) abgegrenzt ist. Beim Andruck des Wegwerffeuerzeuges (40) in die U-Führung (36) reibt sich das Zündrad (41) an dem Gummizylinder (37), das Feuerzeug (40) springt in Richtung des Federbleches (16a), bis der Gashebel (42) an dem Gummizylinder (37) anschlägt, so dass gleichzeitig mit der Zündung der Gashebel gedrückt wird und der Gasauslass erfolgt. Während dieses Vorganges biegt sich das Federblech (16a) derart, dass es den Kontakt der Lamellen (18a) herstellt und dadurch das Gebläse (2) kurz vor der eigentlichen Zündung in Betrieb setzt (Fig. 10). Die Gasverbrennung in dem Verbindungsspalt (9) und die Warmluftabgabe durch die Warmluftausblasdüse (20) erfolgen wie in den vorangegangenen Beschreibungen.9 and 10 show the hair dryer according to the invention without a housing cover in an embodiment for disposable lighters (40) with flint ignition. The components of the hair dryer illustrated and described in FIGS. 1 to 8 have remained the same apart from the special U-guide (36), the position of the spring plate (16a) and the position of the slats (18a). The U guide (36) is equipped with a rubber cylinder (37). The screw (37a) passing through the rubber cylinder (37) and its nut (37b) fix it on the inside of the U-guide (36, Fig. 9, 10, 11). The U-guide (36) is attached to the mounting surface (1c) with the help of screws (38, 39) so that the longitudinal axis of the guide is at an angle to the front surface (1 b) and its open side on the fan side with the spring plate (16a) is delimited. When the disposable lighter (40) is pressed into the U-guide (36), the ignition wheel (41) rubs against the rubber cylinder (37), the lighter (40) jumps in the direction of the spring plate (16a) until the throttle lever (42) starts the rubber cylinder (37) so that the gas lever is pressed simultaneously with the ignition and the gas is discharged. During this process, the spring plate (16a) bends in such a way that it makes contact with the fins (18a) and thereby starts the fan (2) shortly before the actual ignition (FIG. 10). The gas combustion in the connecting gap (9) and the hot air discharge through the hot air blowing nozzle (20) take place as in the previous descriptions.

Die Fig. 11 zeigt den erfindungsgemässen Haartrockner, die U-Führung (36) und das Wegwerffeuerzeug (40) in einer perspektivischen Darstellung. Hieraus ist ersichtlich, dass die Form der Aussparung (21 a) den Konturen des Wegwerffeuerzeuges (40) quer seiner Längsachse angepasst ist.11 shows the hair dryer according to the invention, the U-guide (36) and the disposable lighter (40) in a perspective view. From this it can be seen that the shape of the recess (21 a) is adapted to the contours of the disposable lighter (40) transversely to its longitudinal axis.

In allen Ausführungsbeispielen ist ohne weiteres der Austausch des Gasfeuerzeuges durch einen Gasbehälter möglich, wobei dann die beliebig geartete Zündvorrichtung im Gehäuse des Haartrockners fest angeordnet ist. Die Zündvorrichtung ist in diesem Fall entweder durch einen separaten, am Haartrocknergehäuse angebrachten Schalter oder mittels des Gasbehälters durch dessen Einschieben in den Haartrockner betätigbar.In all of the exemplary embodiments, the gas lighter can be easily replaced by a gas container, in which case the ignition device of any type is fixed in the housing of the hair dryer. In this case, the ignition device can be actuated either by a separate switch attached to the hairdryer housing or by means of the gas container by pushing it into the hairdryer.

Claims (20)

1. A hair dryer with a blower and heating device producing a flow of hot air, with a switch, an igniting mechanism and a gas tank having a gas discharge device, characterized in that the gas discharge device, in inserted condition in the hair dryer housing (1), is arranged in the area of the opening of a connecting clearance (9) provided between the airflow channel (5) and a receptacle (6).
2. A hair dryer as claimed in claim 1, characterized in thatthe igniting mechanism and the gas tank with the gas discharge device are configured as a unit, for example as a gas lighter (17), which is adapted to be inserted into the receptacle (6).
3. A hair dryer as claimed in claim 1, characterized in that the igniting mechanism is fixedly arranged in the hair dryer housing and that the gas tank with the gas discharge device is adapted to be inserted into the receptacle (6).
4. A hair dryer as claimed in any one of the preceding claims, characterized in thatthe igniting device is adapted to be operated by insertion of the gas tank or gas lighter (17).
5. A hair dryer as claimed in any one of the preceding claims, characterized in thatthe igniting device operates by battery or piezo or flint ignition.
6. A hair dryer as claimed in claim 1, characterized in that the receptacle (6) is equipped with two boundary ledges (10.11) adjoining the edges of the recess (21) and arranged normal to both the mounting surface (1 c) and the end surface (1 b) of the housing (1), with the boundary ledge (10) provided adjacent to the hot air exit nozzle (20) including a gas lever abutment tab (13).
7. A hair dryer as claimed in claim 6, characterized in that the boundary ledge (11) provided adjacent to the blower includes a spacing rail (11 a) and a mounting device (14) for the housing cover (1 a).
8. A hair dryer as claimed in claim 6, characterized in that preferably two guide rails (12) are arranged between the boundary ledges (10, 11 ) in such a manner that, in extending parallel to the boundary ledges (10, 11), they conform to the edge elevation of the recess (21 ) on the end surface (1 b).
9. A hair dryer as claimed in claim 8, characterized in thata spring plate (16) is provided on the inside of the end surface (1 b) in the region of the recess (21 ) such that its free, arcuate end is directed towards the guide rails (12).
10. A hair dryer as claimed in claim 8, characterized in thatthe recess (21 ) is adapted to fit the contours of the gas tank or gas lighter (17) normal to its longitudinal axis and that the edges of the recess (21) have at least a few cooling slots (22).
11. A hair dryer as claimed in claim 1, characterized in that the airflow channel (5) and the blower (2) are separated from the receptacle (6) by an air guide plate (3) and air baffle plate (4) arranged vertically to the mounting surface (1 c), such that the respective free ends (7, 8) of the respective plates (3,4) overlap to form a connecting clearance (9) therebetween.
12. A hair dryer as claimed in claim 1, characterized in thatthe airflow channel (5) between the free end (7) of the air guide plate (3) and the hot air exit nozzle (20) has at least one curve (5a), and that the air baffle plate (4) has a curvature (4a) corresponding to said curve (5a).
13. A hair dryer as claimed in claim 1 or claim 2, characterized in thatthe laminae (18) of the blower current line are arranged in such a manner that the battery circuit is closed by the end surface (19) of the gas tank or gas lighter (17) on insertion of the gas tank or gas lighter (17).
14. A hair dryer as claimed in claim 1 or claim 2, characterized in thatthe blower circuit is closed on insertion of the gas tank or gas lighter (17) prior to actuation of the igniting device.
15. A hair dryer as claimed in claim 1 or claim 2, characterized in that the longitudinal axis of the gas tank or gas lighter (17) in the hair dryer housing (1), the axis of the blower (2) and the axis of the airflow channel (5) are not arranged along a common line.
16. A hair dryer as claimed in any one of the preceding claims, characterized in that in an embodiment using disposable lighters with flint ignition the lighter receptacle (6) includes a U-guide (36) for the disposable lighter (40).
17. A hair dryer as claimed in claim 16, characterized in thatthe open side of the U-guide (36) is preferably directed towards the blower (2) and bounded by a spring plate (16a) bent in L-shape and mounted on the inside of the end surface (1 b).
18. A hair dryer as claimed in claims 16 and 17, characterized in that, at its end remote from the recess (21 a), the U-guide (36) for disposable lighters (40) includes a rubber cylinder (37) whose longitudinal axis is arranged normal to the sides of the U-guide (36) and in a plane with the axis of rotation of the igniting wheel (41 ) of the disposable lighter (40) inserted into the U-guide (36), said plane extending parallel to the longitudinal axis of the U-guide (36).
19. A hair dryer as claimed in any one of the preceding claims, characterized in that the piezo- quartz or battery operated pocket lighter (17) or the disposable lighter (40) is provided with a start mark (35).
20. A hair dryer as claimed in any one of the preceding claims, characterized in that a heat- insulating material, preferably aluminum sheet, is fitted to the inside of the housing cover (1 a) and to the mounting surface (1 c) in the area of the connecting clearance (9).
EP87901371A 1986-03-05 1987-03-03 Hair dryer Expired - Lifetime EP0259395B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT56086 1986-03-05
AT560/86 1986-03-05

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EP0259395B1 true EP0259395B1 (en) 1990-01-31

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JP (1) JPS63502803A (en)
KR (1) KR880700649A (en)
AT (1) ATE49861T1 (en)
WO (1) WO1987005194A1 (en)

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US8434238B2 (en) * 2007-06-29 2013-05-07 Andis Company Hair dryer with light source
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ATE49861T1 (en) 1990-02-15
WO1987005194A1 (en) 1987-09-11
US4890395A (en) 1990-01-02
EP0259395A1 (en) 1988-03-16
JPS63502803A (en) 1988-10-20
KR880700649A (en) 1988-04-11

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