EP2676568B1 - Fer a lisser avec capteurs - Google Patents

Fer a lisser avec capteurs Download PDF

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Publication number
EP2676568B1
EP2676568B1 EP13003134.7A EP13003134A EP2676568B1 EP 2676568 B1 EP2676568 B1 EP 2676568B1 EP 13003134 A EP13003134 A EP 13003134A EP 2676568 B1 EP2676568 B1 EP 2676568B1
Authority
EP
European Patent Office
Prior art keywords
sensor
grooming
data
hair straightener
hair
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.)
Revoked
Application number
EP13003134.7A
Other languages
German (de)
English (en)
Other versions
EP2676568A1 (fr
Inventor
Juergen Seng
Olaf Soerensen
Christoph Schmitz
Francis Pinto
Markus Schuessler
Sven Beutner
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.)
Braun GmbH
Original Assignee
Braun 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=48628249&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2676568(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Braun GmbH filed Critical Braun GmbH
Priority to EP13003134.7A priority Critical patent/EP2676568B1/fr
Publication of EP2676568A1 publication Critical patent/EP2676568A1/fr
Application granted granted Critical
Publication of EP2676568B1 publication Critical patent/EP2676568B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • A45D1/00—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor
    • A45D1/02—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with means for internal heating, e.g. by liquid fuel
    • A45D1/04—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with means for internal heating, e.g. by liquid fuel by electricity
    • 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
    • A45D1/00—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor
    • A45D1/28—Curling-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
    • 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
    • A45D2/00—Hair-curling or hair-waving appliances ; Appliances for hair dressing treatment not otherwise provided for
    • A45D2/001—Hair straightening appliances

Definitions

  • the present invention relates to personal appliances according to the preamble of claim 1 and is concerned with an improved personal appliance comprising a sensor.
  • Some appliances comprise sensors.
  • a dryer hood is a relatively spacious personal appliance. Hence, it is relatively easy to place one or several sensors in a dryer hood.
  • As a dryer hood is a very specific type of a personal appliance comprising the hood as a closed space, it is relatively easy to find an appropriate place for a sensor and to make representative measurements.
  • US patent 4,602,143 discloses an infrared hair styling device.
  • This device is provided in the form of a curling iron with an infrared radiation source.
  • the curling iron comprises a hollow barrel for radiating infrared radiation.
  • the barrrel is substantially transparent to radiation.
  • the curling iron is also provided with a circuit for energizing the infrared source in a cyclical manner in order to maintain the temperature of the barrel within a predetermined range.
  • This device also comprises a temperature sensor to sense the temperature of the barrel in order to activate the control unit for maintaining the predetermined temperature range. Hence, within a predetermined temperature range the infrared source will cycle on and off.
  • EP 2 524 617 A2 published after the priority date of the current application discloses a hair styling apparatus with a heating device and a hair protection function. It discloses a temperature-sensing unit, a temperature setting by the user and a moisture sensor in order to select suited temperature for the hair treatment.
  • the moisture sensor comprises two electrodes housed in a base. The hair contact portion of the electrodes and the hair contact surface of the base are disposed below the hair heating surface.
  • a hair treatment device such as a hair straightener
  • a temperature control has two sensors that are disposed at the outside of the opposing legs of an U-shaped heating surface such, that heating surface and the sensor contact surface of a sensor housing are adjacent to and at level with and/or with step free transition with the heating surface.
  • the sensors are provide in a separate senor housing.
  • the US 2007/0119844 A1 discloses a hair styling device with a tubular heating element. Inside the tubular heating element, two sensors are provided integral with the heating unit.
  • the present invention attempts to improve these concepts found in the prior art.
  • the present invention atempts to provide a personal appliance which provides an optimal mode of usage for different users and for different usage situations.
  • the present invention relates to personal appliances according to claim 1 and is concerned with an improved personal appliance comprising a sensor.
  • the invention concerns a personal appliance for performing a grooming task on a user, the appliance comprising a grooming element, the grooming element comprising a grooming surface and the appliance comprising a sensor and a sensor housing, the sensor housing comprising a sensor contact surface, wherein the sensor contact surface is adjacent to and at level with the grooming surface.
  • a personal appliance can take a variety of forms.
  • the personal appliance can be can be a grooming appliance, for example a shaver, a trimmer, a beard trimmer, an epilator, or a hair care device, e.g. a curler, a straightener, a brush, a hair dryer, and the like.
  • the grooming task is different and hence the grooming element and the sensor can be different.
  • the grooming element can comprise a hair removing element and can further comprise a heating or cooling element. Such heating or cooling elements can make shaving a more efficient and more pleasant experience.
  • the grooming task will typically be the task of drying hair or straightening hair or curling hair.
  • the temperature at which the task is performed is critical. Therefore, the grooming element will normally be a heating element.
  • the personal appliance is a hair straightener and comprises a grooming element, the grooming element comprising a grooming surface.
  • the grooming surface will be the surface of the grooming element, which is in contact with the skin when the personal appliance is used in the intended manner.
  • the personal appliance will further comprise a sensor.
  • the choice of the sensor will also depend on the grooming task. Suitable sensors are temperature sensors or humidity sensors or pressure sensors.
  • a temperature sensor for example can measure the heat of a skin or hair surface which is treated by the grooming element.
  • a humidity sensor can, for example, measure the humidity of hair to be dried.
  • a pressure sensor can measure, for example, the pressure which is applied to the skin or hair, which is treated and on to which pressure is exerted by the grooming element.
  • the senor is comprised by a housing and the housing comprises a sensor contact surface.
  • the sensor contact surface is adjacent to (that is in close spatial proximity to) and at level with the grooming surface.
  • the sensor contact surface and the grooming surface are integral. Hence, both surface can be provided from one piece of material and can form part of one larger surface of that piece of material. It has been found useful to provide a sensor housing which comprises a contact plate.
  • the contact plate comprises a front surface and a rear surface.
  • the front surface of the contact plate provides the sensor contact surface.
  • a rear surface which comprises a groove.
  • the sensor can then be at least partially comprised by the groove. If the groove is of suffficient depth and size, the sensor can also be fully comprised by the groove. It has been found useful to provide a groove which is V-shaped.
  • a groove of declining width such as and particularly, a V-shaped groove is useful for providing a defined position for sensors and can safely accommodidate sensors of different sizes.
  • the sensors are supported by two wall of the groove and hence make contact with two wall of the groove. Thereby, the sensors are in contact with the sensor housing at least at two points. Such contact normally helpful for increasing the reliability of measurements made with the sensor, for example temperature measurements.
  • a groove of declining width such as and particularly, a V-shaped groove will only have minimal negative impact on the mechanical stability of the sensor housing.
  • a groove of declining width such as and particularly, a V-shaped groove will make it easy to position the sensor in a pre-defined position within the groove.
  • the sensor can be mechanically held down in the groove, for example by a down-holder, for example a spring of the like. Alternatively, but also additionally, the sensor can be held in the groove by an adhesive.
  • the appliance can comprise two sensor housings and each sensor housing can comprise a sensor contact surface and the sensor contact surfaces can each be adjacent to and at level with the grooming surface.
  • both sensor housings are integral with the grooming surface.
  • the sensor housings can further be situated at two opposing sides of the grooming surface.
  • the personal appliance can be a hair care appliance.
  • the appliance can in particular be a straightener.
  • the data measured by the at least one sensor form a first data set.
  • the first data set comprises a first number of data.
  • a second data set comprising a second number of data can be generated using data from the first data set, the second number being smaller than the first number.
  • a data set is reduced to a smaller data set.
  • the smaller data set comprises less data, it in some sense comprises less information. Nevertheless, in relationship to a given question, the data set comprising lesser data can be more meaningful.
  • it is critical for providing a meaningful second data set that the data of the first data set are meaningful. As the data from the first data set come from sensor information, it is important in such situations, that the sensor is arranged to provide reliable data.
  • the personal appliance can comprise at least one sensor which measured data, the data forming a first data set comprising data representing a first physical property and wherein a second data set, which comprises data representing a second physical property is generated using data from the first data set and wherein the second physical property is different from the first physical property.
  • data representing a first physical property for example temperature
  • This other physical property can for example be hair humidity. It has been found, that the hair temperature curves measurable by sensors are representative for hair humidity, as hair responds differently to heat exposure depending on its humidity.
  • the quality of the data and therefore the mechanical arrangement of the sensors yielding the first data is critical to allow an effective transformation of the first data set to a second data set.
  • the two sensors can measure the same property, for example temperature.
  • Two sensors can achieve a more accurate temperature measurement as compared to a single sensor.
  • temperature data received from two sensors can be processed for achieving a different quality of information rather than temperature.
  • the temperature difference between the front end and the rear end of the heating plates of a hair straightener can be representative for the dryness of the hair. If the hair is wet, it will normally absorb more heat from the heated plates of a hair straightener, and hence the temperature drop between the front sensor and the rear sensor (in a given stroke direction) is more pronounced. Therefore, a set of temperature data can be transferred into a set of dryness data. Dryness data are referred to as a data set of a different nature as compared to the temperature data set.
  • a personal applicance is considered useful, wherein the data measured by the at least one sensor form a first data set comprising a data representing a first physical property and wherein a second data set comprising a data representing a second physical property is generated using data from the first data set and the second physical property is different from the first physical property.
  • the first set of data can be temperature data and the second set of data can be dryness data.
  • this conversion can be achieved by relying on data stored in the data storage.
  • the data storage may have representative data for temperature drop depending on hair dryness.
  • the quality of the second set of data can be increased by additionally relying on data from the data storage.
  • the personal appliance comprises a third sensor which measures data of a different nature than the first and the second sensor.
  • the third sensor may measure hair dryness directly.
  • the data of the third sensor can then be compared with the process data of the first two sensors. The comparison can then lead to an estimate about the reliability of the sensors and to an overall more accurate measurement.
  • any sensor, including the third sensor, used in a personal applicance comprising a grooming element can be placed in a groove, for example a groove of declining width, such as and particularly, a V-shaped groove.
  • the data of the third different sensor can be used to create a data set of yet different quality.
  • the temperature data generated by the first and second sensor could be used to have an estimate for the speed with which the device is moved through the hair.
  • the third sensor or a fourth sensor could also be a sensor measuring the position of the hair straightener.
  • Fig. 1 shows a hair straightener, which embodies the present invention.
  • the hair straightener 200 comprises a gripping unit 210.
  • the gripping unit essentially comprises a first arm 212 and a second arm 214. Both arms are linked at joint 216.
  • a cable 218 is provided at one end of the straightener 200.
  • the straightener comprises a dial knob 220.
  • the straightener 200 comprises a hair treatment unit 230.
  • This hair treatment unit also comprises a first arm 232 and a second arm 234.
  • a gripping unit 236 is provided at one end of the first arm 232 .
  • Both arms comprise heated surfaces and for the second arm 214 the first heating surface 250 can be clearly seen. Adjacent to the first heating surface 250 an area 240 for the first sensor is provided and an area 242 for the second sensor is provided.
  • Fig. 2 schematically shows an arrangement of a grooming element 10 and a sensor housing 20 according to the present invention.
  • the sensor housing has a sensor contact surface 22 which is co-planar and even integral with the grooming surface 12.
  • the sensor housing 20 encases the sensor 24.
  • the upper portion of the sensor housing 20 is provided in the form of contact plate 26.
  • Contact plate 26 comprises a front surface, which serves as the sensor contact surface 22 and comprises a rear surface 28.
  • Fig. 3 represents a useful embodiment of the present invention in a cross-sectional view.
  • the central portion of the combined grooming and sensor housing element is comprised by the grooming element 10.
  • Grooming element 10 comprises the grooming surface 12.
  • a sensor housing 20 is arranged.
  • the sensor housing comprises a sensor contact plate 26 comprising the sensor contact surface 22 and at the opposite side comprises the rear surface 28.
  • the rear surface 28 of the sensor contact plate 26 comprises a groove. This groove is V-shaped, as can be seen on this cross-section.
  • the sensor 24 is arranged in groove 30. Groove 30 is provided deep enough to fully comprise and encase sensor 24. The position of the sensor 24 in groove 30 is secured by hold-down element 32.
  • a further sensor housing 20A is provided on the left hand side. It is arranged in mirror symmetry to the right hand side sensor housing 20. It also comprises all the elements comprised by sensor housing 20. The corresponding elements are marked with corresponding reference numbers, to which an "A" has been added.
  • the grooming element 10 is formed as a profile, preferably made from a metal strand casting, which is flat at its front surface for straightening hair and which is provided at its rear side with protruding extensions for separating the heating element (16) from the sensors (24). Those extensions limit the heat emission from the heating element to the senor and increase thus the measuring accuracy of the measured hair temperature.
  • the rear surface of the combined grooming and sensor housing element is in the shape of three reversed "U's" - see Fig 5.
  • Fig. 4 provides a schematic illustration of the functioning of the present invention, without providing actual parts of the invention as embodied in a personal appliance.
  • the personal appliance might generate first sensor data SD1 and second sensor data SD2. Additionally, the user can enter data by a suitable interface, such that further data ED are available. All these data are transmitted to a central processing unit P. This unit will then generate an output signal O, which can be used select a desirable grooming mode.

Landscapes

  • Cleaning And Drying Hair (AREA)
  • Brushes (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Claims (12)

  1. Lisseur capillaire (200) pour l'exécution d'une tâche de coiffage sur un utilisateur, comprenant un élément de coiffage (10), qui est pourvu d'une surface de coiffage (12) et de premier et deuxième capteurs (24), lesdits premier et deuxième capteurs (24) sont chacun pourvus d'un logement de capteur (20), chacun desdits logements de capteur (20) est pourvu d'une surface de contact de capteur (22), dans lequel chacune desdites surfaces de contact de capteur (22) est adjacente à, et au niveau de, et/ou dotée d'une transition exempte d'étagement avec, la surface de coiffage (12), chacun desdits logements de capteur (20, 20A) étant
    à la fois solidaire de la surface de coiffage (12) et situé au niveau de deux côtés opposés de la surface de coiffage (12), dans lequel la surface de contact de capteur (22) et la surface de coiffage (12) sont solidaires de telle sorte que l'une et l'autre des surfaces sont fournies à partir d'une pièce de matériau et forment une surface plus grande de cette pièce de matériau et dans lequel le logement de capteur (20) comprend une plaque de contact (26) et la plaque de contact (26) comprend une surface avant et une surface arrière (28) et la surface avant fournit la surface de contact de capteur (22).
  2. Lisseur capillaire (200) selon la revendication 1, dans lequel la surface de contact de capteur (22) et la surface de coiffage (12) sont coplanaires.
  3. Lisseur capillaire (200) selon la revendication 1 ou 2, dans lequel l'élément de coiffage (10) et l'élément de logement de capteur sont combinés et une partie centrale de ceux-ci est pourvue de la surface de coiffage (12).
  4. Lisseur capillaire (200) selon l'une quelconque des revendications précédentes, dans lequel une surface arrière de ladite partie centrale de la surface de coiffage (12) est pourvue d'un élément fonctionnel, qui est de préférence un élément chauffant (16).
  5. Lisseur capillaire (200) selon l'une des revendications précédentes, dans lequel ladite surface arrière (28) comprend une rainure (30) et dans lequel le capteur (24) est au moins partiellement constitué par la rainure (30).
  6. Lisseur capillaire (200) selon la revendication 5, dans lequel la rainure (30) est en forme de V.
  7. Lisseur capillaire (200) selon la revendication 5 ou 6, dans lequel le capteur (24) est mécaniquement maintenu en bas dans la rainure (30).
  8. Lisseur capillaire (200) selon l'une quelconque des revendications 5 à 7, dans lequel le capteur (24) est maintenu dans la rainure (30) par un adhésif.
  9. Lisseur capillaire (200) selon l'une quelconque des revendications précédentes, dans lequel l'élément de coiffage (10) est formé en tant que profil, de préférence fabriqué à partir d'un coulage de toron métallique, qui est plat au niveau de sa surface avant pour lisser les cheveux et qui est pourvu au niveau de son côté arrière d'extensions faisant saillie pour séparer l'élément chauffant (16) des capteurs (24).
  10. Lisseur capillaire (200) selon l'une quelconque des revendications précédentes, dans lequel les données mesurées par ledit au moins un capteur forment un premier ensemble de données comprenant un premier nombre de données et dans lequel un deuxième ensemble de données comprenant un deuxième nombre de données est produit en utilisant les données du premier ensemble de données et le deuxième nombre est plus petit que le premier nombre.
  11. Lisseur capillaire (200) selon l'une quelconque des revendications précédentes, dans lequel les données mesurées par ledit au moins un capteur forment un premier ensemble de données comprenant une donnée représentant une première propriété physique et dans lequel un deuxième ensemble de données comprenant une donnée représentant une deuxième propriété physique est produit en utilisant les données du premier ensemble de données et la deuxième propriété physique est dififérente de la première propriété physique.
  12. Lisseur capillaire (200) selon la revendication 11, dans lequel la première propriété physique est la température et/ou la deuxième propriété physique est l'humidité.
EP13003134.7A 2012-06-20 2013-06-19 Fer a lisser avec capteurs Revoked EP2676568B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13003134.7A EP2676568B1 (fr) 2012-06-20 2013-06-19 Fer a lisser avec capteurs

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP12172682 2012-06-20
EP13003134.7A EP2676568B1 (fr) 2012-06-20 2013-06-19 Fer a lisser avec capteurs

Publications (2)

Publication Number Publication Date
EP2676568A1 EP2676568A1 (fr) 2013-12-25
EP2676568B1 true EP2676568B1 (fr) 2018-01-03

Family

ID=48628249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13003134.7A Revoked EP2676568B1 (fr) 2012-06-20 2013-06-19 Fer a lisser avec capteurs

Country Status (4)

Country Link
EP (1) EP2676568B1 (fr)
CN (2) CN104411204A (fr)
RU (1) RU2605064C2 (fr)
WO (1) WO2013190492A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114304839B (zh) * 2021-12-31 2023-03-28 深圳市众创时代科技有限公司 一种直发器

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Publication number Priority date Publication date Assignee Title
KR20050063632A (ko) 2003-12-26 2005-06-28 김기섭 헤어 아이론용 히터장치
US20070119844A1 (en) 2005-11-25 2007-05-31 Beauti-Gear International Limited Ceramic hair care heating element
WO2010016072A1 (fr) 2008-08-04 2010-02-11 Tenacta Group S.P.A. Appareil de coiffure
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US20120055501A1 (en) 2009-07-10 2012-03-08 Juergen Seng Automated Hair Care Process
KR20110010377U (ko) 2010-04-28 2011-11-03 이승수 헤어아이론의 발열롯드
EP2524617A2 (fr) 2011-05-20 2012-11-21 Rovcal, Inc. Appareil de coiffure doté d'une fonction de protection des cheveux
DE102012201738A1 (de) 2012-02-06 2013-08-08 BSH Bosch und Siemens Hausgeräte GmbH Haarglätteisen

Also Published As

Publication number Publication date
EP2676568A1 (fr) 2013-12-25
CN113439918A (zh) 2021-09-28
RU2014145762A (ru) 2016-08-10
RU2605064C2 (ru) 2016-12-20
CN104411204A (zh) 2015-03-11
WO2013190492A1 (fr) 2013-12-27

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