DE4418292A1 - Inductive movement sensor for irons - Google Patents

Inductive movement sensor for irons

Info

Publication number
DE4418292A1
DE4418292A1 DE4418292A DE4418292A DE4418292A1 DE 4418292 A1 DE4418292 A1 DE 4418292A1 DE 4418292 A DE4418292 A DE 4418292A DE 4418292 A DE4418292 A DE 4418292A DE 4418292 A1 DE4418292 A1 DE 4418292A1
Authority
DE
Germany
Prior art keywords
motion sensor
interior
induction coil
inductive
sensor according
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.)
Withdrawn
Application number
DE4418292A
Other languages
German (de)
Inventor
Josef Dr Poeppel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Conti Temic Microelectronic GmbH
Original Assignee
Temic Telefunken Microelectronic GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Temic Telefunken Microelectronic GmbH filed Critical Temic Telefunken Microelectronic GmbH
Priority to DE4418292A priority Critical patent/DE4418292A1/en
Publication of DE4418292A1 publication Critical patent/DE4418292A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00Hand irons
    • D06F75/08Hand irons internally heated by electricity
    • D06F75/26Temperature control or indicating arrangements
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45DHAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D1/00Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor
    • A45D1/28Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with means for controlling or indicating the temperature
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45DHAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00Hair drying devices; Accessories therefor
    • A45D20/22Helmets with hot air supply or ventilating means, e.g. electrically heated air current
    • A45D20/30Electric circuitry specially adapted for hair drying devices
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/2006Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils
    • G01D5/2033Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils controlling the saturation of a magnetic circuit by means of a movable element, e.g. a magnet
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00Indicating or recording presence, absence, or direction, of movement
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/11Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by inductive pick-up
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965Switches controlled by moving an element forming part of the switch
    • H03K17/97Switches controlled by moving an element forming part of the switch using a magnetic movable element
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965Switches controlled by moving an element forming part of the switch
    • H03K17/97Switches controlled by moving an element forming part of the switch using a magnetic movable element
    • H03K2017/9706Inductive element

Abstract

An inductive movement sensor for e.g. irons has a closed inner space (2) and an induction coil (1) while a ferromagnetic body (4) can be moved freely in the space (2). The inner space (2) is located inside the induction coil (1) and the ferromagnetic body (4) is a permanent magnet.

Description

Die Erfindung betrifft einen induktiven Bewegungssensor mit einem abgeschlossenen Innenraum und einer Indukti­ onsspule, wobei ein ferromagnetischer Körper in diesem Innenraum frei bewegbar ist.The invention relates to an inductive motion sensor with a closed interior and an inductor onsspule, wherein a ferromagnetic body in this Interior is free to move.

Es ist bekannt, beispielsweise bei Bügeleisen einen Be­ wegungssensor einzusetzen, der, falls nach einer Benut­ zung die Abschaltung des Gerätes vergessen wurde, nach einer bestimmten Zeitdauer dessen automatische Abschal­ tung veranlaßt. Ein bekannter induktiver Bewegungssen­ sor besteht aus einer Zylinderspule, die einen Teil ei­ nes abgeschlossenen Innenraumes innerhalb eines Sensor­ gehäuses bildet. In diesem Innenraum lagert eine frei bewegliche ferromagnetische Kugel, die bei einer Bewe­ gung des Sensors die magnetischen Feldlinien der Zylin­ derspule schneidet und hierdurch die Induktivität der Zylinderspule ändert. Zur Detektierung dieser Indukti­ vitätsänderung wird mittels eines Kondensators ein Schwingkreis aufgebaut und dessen Schwingkreisspannung ausgewertet.It is known, for example in the case of an iron use a motion sensor, which, if after a use forgetting to switch off the device after automatic shutdown for a certain period of time caused. A well-known inductive movement sensor Sor consists of a solenoid, which is part of an egg closed interior within a sensor housing forms. One is stored freely in this interior movable ferromagnetic ball, which is used for a movement the magnetic field lines of the cylinder derspule cuts and thereby the inductance of Solenoid changes. To detect these inductors Change in viability is done by means of a capacitor Resonant circuit built and its resonant circuit voltage evaluated.

Dieser bekannte induktive Bewegungssensor führt jedoch zu einem großvolumigen Aufbau und hat außerdem den Nachteil von hohen Herstellungskosten.However, this known inductive motion sensor leads to a large-volume structure and also has the Disadvantage of high manufacturing costs.

Die Aufgabe der Erfindung liegt daher darin, einen in­ duktiven Bewegungssensor der eingangs genannten Art an­ zugeben, der kompakt und einfach aufzubauen ist.The object of the invention is therefore in ductive motion sensor of the type mentioned admit that is compact and easy to set up.

Diese Aufgabe wird durch die kennzeichnenden Merkmale des Patentanspruches 1 gelöst. Hiernach befindet sich der den ferromagnetischen Körper aufnehmende Innenraum in der Induktionsspule, wobei der ferromagnetische Kör­ per als Permanentmagnet ausgebildet ist. Somit wird bei Bewegung des Bewegungssensors die dauermagnetische Ku­ gel im Innenraum der Induktionsspule ebenfalls bewegt, so daß hierdurch in der Induktionsspule eine Induk­ tionsspannung induziert wird. Da der den dauermagneti­ schen Körper aufnehmende Innenraum sich innerhalb der Induktionsspule befindet und ein Schwingkreiskondensa­ tor nicht erforderlich ist, ergibt sich für den erfin­ dungsgemäßen Bewegungssensor eine kleine und kompakte Bauform.This task is characterized by the characteristics of claim 1 solved. After that is the interior housing the ferromagnetic body in the induction coil, the ferromagnetic body is designed as a permanent magnet. Thus at Movement of the motion sensor the permanent magnetic Ku gel in the interior of the induction coil also moves, so that in this way an inductor in the induction coil tion voltage is induced. Since the permanent magnet body receiving interior within the Induction coil is located and a resonant circuit condenser gate is not required, results for the inventor motion sensor according to the invention a small and compact Design.

Bei einer bevorzugten Ausführungsform des erfindungsge­ mäßen Bewegungssensors kann der den dauermagnetischen Körper aufnehmende Innenraum kugelförmig ausgebildet sein. Dadurch kann der induktive Bewegungssensor jede Bewegung unabhängig von deren Richtung in bezug auf die Induktionsspule detektiert werden.In a preferred embodiment of the fiction motion sensor can the permanently magnetic Body-receiving interior spherical his. As a result, the inductive motion sensor can do any Movement regardless of their direction in relation to the Induction coil can be detected.

Ein besonders einfacher Aufbau des induktiven Bewe­ gungssensors ergibt sich mit einer Zylinderspule als Induktionsspule, wobei in dem Raum, der für den Kern vorgesehen ist, der den ferromagnetischen Körper auf­ nehmende Innenraum liegt. Da die Höhe der in der Induk­ tionsspannung induzierten Spannung von der Geschwindig­ keit der Flußänderung abhängt, kann sowohl der Innen­ raum als auch der dauermagnetische Körper in entspre­ chender Weise ausgebildet werden. So kann auf mechani­ schem Wege durch kleine Stufen auf der Oberfläche des Innenraumes eine sprunghafte Bewegungsänderung des dau­ ermagnetischen Körpers und damit schnelle Flußänderungen erzielt werden. Eine vorteilhafte Form für den per­ manentmagnetischen Körper stellt die Kugel dar, die zur Erzielung schneller Flußänderungen ebenfalls eine rauhe Oberfläche, im Sinne von kleinen Stufen aufweisen kann. Schließlich kann eine solche Kugel auch mehrfach magne­ tisiert sein, um bei kleinen Winkeländerungen ein hohes Detektionssignal zu erzielen.A particularly simple structure of the inductive movement tion sensor results with a solenoid as Induction coil, being in the space that is for the core is provided on the ferromagnetic body taking interior space. Since the amount of the induc voltage induced voltage from the speed speed of the flow change depends on both the inside space as well as the permanent magnetic body in correspondence be trained accordingly. So on mechani paths through small steps on the surface of the  Interior a sudden change in movement of the lasting magnetic body and thus rapid changes in flow be achieved. An advantageous form for the per Magnetic body represents the sphere that leads to the Achieving rapid river changes is also rough Surface, in the sense of small steps. Finally, such a sphere can also be magnetized several times be tized to a high with small changes in angle To achieve detection signal.

Im folgenden soll die Erfindung anhand von Ausführungs­ beispielen im Zusammenhang mit den Zeichnungen darge­ stellt und erläutert werden. Es zeigen:In the following, the invention is based on the embodiment examples in connection with the drawings Darge provides and explained. Show it:

Fig. 1 eine Schnittdarstellung einer Zylinderspule mit einem eine dauermagnetische Kugel aufneh­ menden Innenraum gemäß der Erfindung, Fig. 1 is a sectional view of a cylindrical coil with a permanent magnet, a ball Transd Menden interior according to the invention,

Fig. 2 eine Schnittdarstellung im Bereich des Innen­ raumes eines erfindungsgemäßen Bewegungssen­ sors mit stufenförmig ausgebildeter Oberflä­ che, Fig. 2 is a sectional representation in the region of the interior of a Bewegungssen invention sors having step-shaped design Oberflä che,

Fig. 3 eine dauermagnetische Kugel mit segmentierter Magnetisierung für den erfindungsgemäßen Be­ wegungssensor und Fig. 3 is a permanent magnetic ball with segmented magnetization for the motion sensor Be and

Fig. 4 eine dauermagnetische Kugel mit stufenförmi­ ger Oberfläche für den erfindungsgemäßen in­ duktiven Bewegungssensor. Fig. 4 is a permanent magnetic ball with a step-shaped surface for the inductive motion sensor according to the invention.

Die Fig. 1 zeigt eine Zylinderspule 1 als Induktions­ spule für den induktiven Bewegungssensor nach der Er­ findung, wobei in deren zentralem Durchgangsbereich, wo sich also normalerweise der Kern der Spule befindet, ein Innenraum 2 zur Aufnahme einer dauermagnetischen Kugel 4 befindet. Dieser Innenraum 2 wird von einem nichtmagnetischen Material 5 gebildet. Die Wicklung der Induktionsspule 1 ist in Fig. 1 mit dem Bezugszeichen 3 bezeichnet. Fig. 1 shows a solenoid 1 as an induction coil for the inductive motion sensor according to the invention, with an interior 2 for receiving a permanent magnetic ball 4 in its central passage area, so where the core of the coil is normally located. This interior 2 is formed by a non-magnetic material 5 . The winding of the induction coil 1 is designated by the reference symbol 3 in FIG. 1.

Eine Bewegung des induktiven Bewegungssensors mit der Induktionsspule 1 nach Fig. 1 führt in der Wicklung 3 aufgrund der sich ebenfalls bewegenden Kugel 4 zu einer magnetischen Flußänderung, so daß eine Induktionsspan­ nung in der Induktionsspule 1 erzeugt wird. Diese In­ duktionsspannung wird als Meßspannung UMeß an den An­ schlüssen der Induktionsspule 1 abgegriffen und einer nicht dargestellten Auswerteeinheit zugeführt. Somit kann anhand dieser Meßspannung UMeß einfach festge­ stellt werden, ob eine Bewegung des Sensors vorliegt oder ob dieser Sensor in Ruhe ist.Movement of the inductive motion sensor with the induction coil 1 according to FIG. 1 leads to a magnetic flux change in the winding 3 due to the likewise moving ball 4 , so that an induction voltage is generated in the induction coil 1 . This induction voltage is tapped as measurement voltage U Meß at the connections to induction coil 1 and fed to an evaluation unit, not shown. This measurement voltage U Meß can thus be used to easily determine whether the sensor is moving or whether this sensor is at rest.

Um die Detektionssicherheit zu erhöhen, können sowohl an dem Innenraum 2 als auch an der Kugel 4 verschiedene Maßnahmen durchgeführt werden. Da die Höhe der Induk­ tionsspannung von der Geschwindigkeit der Flußänderung abhängt, kann die Oberfläche des Innenraumes 2 stufen­ förmig entsprechend der Darstellung nach Fig. 2 ausge­ bildet sein, so daß hierdurch sprunghafte Bewegungsän­ derungen der Kugel 4 zu schnellen Flußänderungen füh­ ren. Dieser Effekt kann auch dadurch erzielt werden, daß anstatt einer stufigen Oberfläche des Innenraumes 2 die Kugeloberfläche der Kugel 4 entsprechend Fig. 4 stufig ausgebildet wird.In order to increase the reliability of detection, various measures can be carried out both on the interior 2 and on the sphere 4 . Since the height of the induction voltage depends on the speed of the flow change, the surface of the interior 2 can be stepped out as shown in FIG. 2, so that this causes sudden changes in the movement of the ball 4 to rapid flow changes. This effect can can also be achieved in that instead of a stepped surface of the interior 2, the spherical surface of the ball 4 is stepped according to FIG .

Ein hohes Detektionssignal ist auch dann zu erzielen, wenn die Kugel 4 gemäß Fig. 3 mehrfach magnetisiert wird, um somit schon bei kleinen Winkeländerungen ein Spannungssignal hervorzurufen. A high detection signal can also be achieved if the ball 4 is magnetized several times according to FIG. 3, so that a voltage signal is produced even with small changes in angle.

Der erfindungsgemäße induktive Bewegungssensor ist in solchen Geräten einsetzbar, die zwecks deren Benutzung bewegt werden müssen, wie beispielsweise Bügeleisen, elektrische Haartrockner oder elektrische Haarwickler, so daß bei einer Nichtabschaltung der Geräte nach deren Benutzung eine automatische Abschaltung erfolgt, wenn über eine gewisse Zeitdauer das entsprechende Gerät nicht bewegt wurde.The inductive motion sensor according to the invention is in such devices can be used for the purpose of their use need to be moved, such as an iron, electric hair dryers or hair curlers, so that if the devices are not switched off after their Use an automatic shutdown if the corresponding device over a certain period of time was not moved.

Claims (7)

1. Induktiver Bewegungssensor mit einem abgeschlossenen Innenraum (2) und einer Induktionsspule (1), wobei ein ferromagnetischer Körper (4) im Innenraum (2) frei be­ wegbar ist, dadurch gekennzeichnet, daß sich der Innen­ raum (2) innerhalb der Induktionsspule (1) befindet und daß der ferromagnetische Körper (4) als Permanentmagnet ausgebildet ist.1. Inductive motion sensor with a closed interior ( 2 ) and an induction coil ( 1 ), a ferromagnetic body ( 4 ) in the interior ( 2 ) being freely movable, characterized in that the interior space ( 2 ) within the induction coil ( 1 ) and that the ferromagnetic body ( 4 ) is designed as a permanent magnet. 2. Induktiver Bewegungssensor nach Anspruch 1, dadurch gekennzeichnet, daß der Innenraum (2) näherungsweise kugelförmig ausgebildet ist.2. Inductive motion sensor according to claim 1, characterized in that the interior ( 2 ) is approximately spherical. 3. Induktiver Bewegungssensor nach Anspruch oder 2, dadurch gekennzeichnet, daß als Induktionsspule (1) eine Zylinderspule ohne Kern vorgesehen ist, wobei in dem für den Kern vorgesehenen Raum der Zylinderspule der den permanentmagnetischen Körper (4) aufnehmende Innen­ raum (2) vorgesehen ist.3. Inductive motion sensor according to claim or 2, characterized in that a solenoid is provided as the induction coil ( 1 ) without a core, wherein in the space provided for the core of the solenoid of the permanent magnetic body ( 4 ) receiving interior space ( 2 ) is provided . 4. Induktiver Bewegungssensor nach einem der vorange­ henden Ansprüche, dadurch gekennzeichnet, daß die Ober­ fläche des Innenraumes (2) stufenförmig ausgebildet ist.4. Inductive motion sensor according to one of the preceding claims, characterized in that the upper surface of the interior ( 2 ) is step-shaped. 5. Induktiver Bewegungssensor nach einem der vorange­ henden Ansprüche, dadurch gekennzeichnet, daß der dau­ ermagnetische Körper (4) als Kugel ausgebildet ist.5. Inductive motion sensor according to one of the preceding claims, characterized in that the permanent magnetic body ( 4 ) is designed as a ball. 6. Induktiver Bewegungssensor nach Anspruch 5, dadurch gekennzeichnet, daß eine permanentmagnetische Kugel (4) mit stufenförmig ausgebildeter Oberfläche vorgesehen ist.6. Inductive motion sensor according to claim 5, characterized in that a permanent magnetic ball ( 4 ) is provided with a stepped surface. 7. Induktiver Bewegungssensor nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß die permanentmagnetische Kugel (4) mehrfache Magnetisierungen aufweist.7. Inductive motion sensor according to claim 5 or 6, characterized in that the permanent magnetic ball ( 4 ) has multiple magnetizations.
DE4418292A 1994-05-26 1994-05-26 Inductive movement sensor for irons Withdrawn DE4418292A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4418292A DE4418292A1 (en) 1994-05-26 1994-05-26 Inductive movement sensor for irons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4418292A DE4418292A1 (en) 1994-05-26 1994-05-26 Inductive movement sensor for irons

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DE4418292A1 true DE4418292A1 (en) 1995-11-30

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DE4418292A Withdrawn DE4418292A1 (en) 1994-05-26 1994-05-26 Inductive movement sensor for irons

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000000831A1 (en) * 1998-06-29 2000-01-06 Koninklijke Philips Electronics N.V. Acceleration sensor
DE19961114A1 (en) * 1999-12-17 2001-06-21 Bsh Bosch Siemens Hausgeraete Hair treatment device, in particular a hair dryer
EP2359710A1 (en) * 2010-02-24 2011-08-24 BSH Bosch und Siemens Hausgeräte GmbH Hair treatment device
EP2359711A1 (en) * 2010-02-24 2011-08-24 BSH Bosch und Siemens Hausgeräte GmbH Hair styling or care appliance
EP2386219A1 (en) * 2010-05-11 2011-11-16 BSH Bosch und Siemens Hausgeräte GmbH Electrically operated hair straightener
ES2387285A1 (en) * 2011-02-23 2012-09-19 Dols Industrial De Peluqueria, S.A. Iron for smoothing and soft-perming the hair

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FR2264464A7 (en) * 1974-03-11 1975-10-10 Idra Pressen Gmbh Indicating speed variation of machine elements - permanent magnet assembly indicates change of piston speed on pressure die casting machine
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WO2000000831A1 (en) * 1998-06-29 2000-01-06 Koninklijke Philips Electronics N.V. Acceleration sensor
US6148669A (en) * 1998-06-29 2000-11-21 U.S. Philips Corporation Acceleration sensor with a spherical inductance influencing member
DE19961114A1 (en) * 1999-12-17 2001-06-21 Bsh Bosch Siemens Hausgeraete Hair treatment device, in particular a hair dryer
EP1108376A3 (en) * 1999-12-17 2003-01-02 BSH Bosch und Siemens Hausgeräte GmbH Hair treating apparatus , especially hair dryer
EP2359710A1 (en) * 2010-02-24 2011-08-24 BSH Bosch und Siemens Hausgeräte GmbH Hair treatment device
EP2359711A1 (en) * 2010-02-24 2011-08-24 BSH Bosch und Siemens Hausgeräte GmbH Hair styling or care appliance
EP2386219A1 (en) * 2010-05-11 2011-11-16 BSH Bosch und Siemens Hausgeräte GmbH Electrically operated hair straightener
ES2387285A1 (en) * 2011-02-23 2012-09-19 Dols Industrial De Peluqueria, S.A. Iron for smoothing and soft-perming the hair

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