KR20170012563A - Applicator with a heating member for applying a cosmetic product on keratinous fibers - Google Patents

Abstract

The present invention relates to an applicator (1)
The tip 10 attached to the gripping member 5 and the application member 15 and the tip 10 include a heating member 25 for heating the application member 15 -, and
A power source 20 for driving the heating element 25, a unit 30 for controlling the power source 20, and a first temperature sensor 35,
The unit (30)
- generating a second parameter indicative of the rate of temperature rise of the heating member (25) based on the first parameter,
- compare the second parameter with one or more thresholds stored in memory in the unit (30) and cut off the power supply of the heating element (25) based on the result of the comparison.

Description

TECHNICAL FIELD [0001] The present invention relates to an applicator having a heating member for applying cosmetics on keratin fibers. BACKGROUND OF THE INVENTION 1. Field of the Invention [0002]

The present invention relates to an applicator for applying cosmetics on keratin fibers, the applicator comprising a gripping member, a tip attached to the gripping member, and a member for applying the cosmetic to be firmly connected to the tip during application of the cosmetic The tip includes a heating member for heating the application member to enable application of cosmetics on the keratin fiber, a power source for driving the heating member electrically to induce the temperature rise of the heating member, and a unit for controlling the power source And at least a first temperature sensor adapted to supply at least a first parameter indicative of the temperature of the heating element or tip to the unit.

Cosmetics are, for example, mascara, care products, or cleansing products.

"Cosmetics" in the sense of the present invention means products as defined in Council Regulation EC Reg Nos. 1222/2009 and 30 November 2009 of the European Parliament on Cosmetics.

The application member is, for example, a detachable comb including a cosmetic product to be applied.

The user who wishes to use the applicator turns on the power to electrically drive the heating element. A temperature rise to this is induced. The control unit serves to regulate the temperature of the heating member so as to reach the target temperature. The cosmetic contained in the application member is induction heated so that it can be applied onto the keratinous fibers.

However, when the user operates the heating while forgetting to install the application member on the tip, electricity is wasted and a loss is seen.

Similarly, if the applicator activates heating, for example, in the case of a pin that is to be extended into a reservoir for receiving cosmetics, power is used to see losses.

The useless use of power reduces the usability of the applicator or the autonomy of the output.

It is therefore an object of the present invention to provide an applicator having enhanced useful life or autonomy of output.

For this purpose, the present invention relates to an applicator of the type described above, wherein the unit generates a second parameter indicative of the rate of temperature rise of the heating member based on the first parameter, Is compared with one or more threshold values stored in memory and is suitable for shutting off the power supply of the heating element based on the result of this comparison.

According to a particular embodiment of the invention, the applicator comprises one or more of the following features singly or in any technically possible combination.

The limit value is an upper limit and the unit is adapted to detect whether or not the second parameter is above the upper limit and to interrupt the power supply of the heating member if the upper limit is exceeded.

- the limit value is the lower limit and the unit is adapted to detect whether the second parameter is below the lower limit and, if it is below the lower limit, to interrupt the power supply of the heating member.

The second parameter is a derivative of the first parameter over time, a value of a first parameter adopted by the first parameter after a predetermined time that the heating element is driven by the power supply, The time taken by the parameter, or the time constant of the temperature rise of the heating element, or a combination thereof, in particular a linear combination thereof.

The applicator comprises a second temperature sensor adapted to measure at least a third parameter, the third parameter indicating an ambient temperature when the applicator member is not rigidly connected to the tip, the second parameter indicating a first parameter and And is calculated by the unit using the third parameter.

The second temperature sensor is located at the substantially distal end of the tip with respect to the gripping member.

The applicator further comprises an insulator positioned longitudinally between the second temperature sensor and the heating element.

The applying member is detachable, and preferably has a comb shape as a whole.

The applicator is movable between an unused position in which the applicator member is located inside the reservoir and a use position in which the applicator member is located outside the reservoir, The application member has a generally brush shape.

The present invention also relates to a method for applying cosmetics on keratinous fibers, the method comprising at least the following steps:

- providing a applicator comprising a gripping member, a tip attached to the gripping member, and a member for applying a cosmetic product firmly connected to the tip during application of the cosmetic product. The tip includes a heating element, a power source, a unit for controlling the power source, and at least a first temperature sensor.

- supplying power to the heating element by the power supply (20) to induce a temperature rise of the heating element.

Heating the cosmetic with a heating element to enable application of the cosmetic on the keratin fibers.

- supplying at least a first parameter indicative of the temperature of the heating member by the first temperature sensor to the unit.

- generating by the unit a second parameter indicative of the rate of temperature rise of the heating element based on the first parameter.

Comparing the second parameter by the unit to one or more thresholds stored in the memory in the unit and blocking power supply to the heating member by the unit based on the result of the comparison.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be more readily understood by reference to the following description taken in conjunction with the accompanying drawings, which serve merely as one embodiment.

Fig. 1 is a perspective view showing an external shape of an applicator according to a first embodiment of the present invention,
Fig. 2 is a cross-sectional view schematically showing the applicator shown in Fig. 1,
FIG. 3 is a graph showing the temperature rise of the heating member of the applicator shown in FIGS. 1 and 2,
4 is a schematic cross-sectional view of an applicator according to a second embodiment of the present invention,
5 is a graph showing the temperature rise of the heating member of the applicator shown in Fig.

An applicator 1 according to the present invention will be described with reference to Figs. 1 and 2. Fig. The applicator 1 is for applying cosmetics (not shown) onto the eyelashes of a keratinous fiber (not shown), for example a receiver (not shown). Generally, the receiver is the user of the applicator 1.

The applicator 1 has an elongated shape along the longitudinal direction L, for example.

The applicator 1 includes a base serving as a gripping member 5, a tip 10 attached to the gripping member, and a coating member 15 suitable for applying cosmetics. The applicator 1 includes a power source 20 (FIG. 2) for electrically driving the heating member 25, a unit 30 for controlling the power source, 1 < / RTI > parameter (T).

Optionally, the applicator 1 also includes a second temperature sensor 40 and an insulator 45 which is advantageously located at the distal end of the tip 10.

Cosmetics, for example, are mascara.

The gripping member 5 is suitable for operation by a user. The gripping member 5 comprises, for example, two half-shells made of plastic and assembled together.

The gripping member 5 advantageously includes an on-off button 47. In the illustrated embodiment, the gripping element 5 also comprises operating light 49, for example a light emitting diode.

The tip 10 has, for example, a generally tubular shape. Advantageously, the tip 10 comprises a metal tube 51. The tip 10 extends, for example, along the longitudinal direction L. [ The tip 10 includes a proximal end 53 with respect to the gripping member 5.

The proximal end 53 is attached to the holding member 5.

The metal tube 51 includes, for example, an open distal end 55.

The coating member 15 is advantageously detachable. The application member 15 is movable between a position (FIG. 1) removed from the tip 10 and an application position (FIG. 2) where the application member is connected to the tip 10. For example, the application member 15 is attached to the tip 10 at the application position.

According to a further embodiment not shown, the applicator 15 is connected to the tip 10 by any means known to those skilled in the art. For example, the applicator 15 is advantageously rotatably mounted on the tip 10 about the longitudinal direction L.

The applying member 15 has, for example, a substantially comb shape. The application member 15 comprises a toothing 57 suitable for applying cosmetics on keratinous fibers.

The application member 15 forms an internal recess suitable for receiving the tip 10 in the longitudinal direction at the application position.

The tooth profile 57 is advantageously oriented substantially radially from the longitudinal direction L. [ For example, the tooth profile 57 extends in a half-space formed by the median plane P of the application member 15.

The power source 20 is, for example, a battery, preferably a rechargeable battery. Advantageously, the power supply 20 is located inside the gripping member 5.

The power source 20 is suitable for supplying a rated power of 0.5 to 2 W.

The first temperature sensor 35 is, for example, a thermocouple.

According to an alternative embodiment not shown, the first temperature sensor 35 is a Hall effect sensor or switch.

The first temperature sensor 35 is located, for example, inside the tip 10. It is advantageous that the first temperature sensor 35 is located in the vicinity of the heating member 25, i.e., at a distance of 10 mm or less from the heating member 25.

According to one advantageous embodiment, the first temperature sensor 35 is located on the heating element 25.

It is advantageous that the first parameter T indicative of the temperature of the heating member 25 is the temperature of the heating member.

The heating member 25 is, for example, a resistive printed circuit board (PCB). The heating member 25 is electrically connected to the power source 20.

The unit 30 is suitable for generating a second parameter T1 or T2 (FIG. 3) indicating the rate of temperature rise of the heating member 25 based on the first parameter T. The heating element 25 extends in the longitudinal direction inside the tip 10. Advantageously, the heating element 25 has an extension E which is substantially the same as that of the application element 15.

The unit 30 also compares the second parameter T1 or T2 to one or more threshold values Tmax stored in the memory in the unit 30 and controls the heating member 25). ≪ / RTI >

In the embodiment shown in Figs. 1 to 3, the limit value Tmax is the upper limit. The unit 30 detects whether or not the second parameter T1 or T2 is equal to or greater than the upper limit and turns off the power supply of the heating member 25 by the power supply 20 Lt; / RTI > Tmax is, for example, about 55 占 폚.

3, the second parameter may be a first parameter that is adopted by the first parameter after a predetermined time, for example, when the heating member 25 is electrically driven by the power supply 20 T). For example, the predetermined time is 10 seconds.

According to a further embodiment not shown, the second parameter may be a derivative according to the passage of time t of the first parameter T, a time taken by the first parameter T to reach a predetermined value, Or more generally from the time constant of the temperature rise of the heating member 25 at the start of heating.

According to one particular embodiment, the second parameter is a combination of the possibilities listed above, in particular a linear combination.

The second temperature sensor 40 is positioned substantially at the distal end 55 of the metal tube 51 with respect to the gripping member 5.

The second temperature sensor 40 is suitable for supplying the ambient temperature when the application member 15 is not provided. When the applicator member 15 is in place, the temperature is slightly higher by about 4 ° due to more limited heat exchange with the surroundings. This is a less preferred second method of detecting the presence or absence of the application member 15.

The heat insulator 45 is made of, for example, an elastomer. The insulator 45 is positioned longitudinally between the second temperature sensor 40 and the heating member 25.

Hereinafter, the operation of the applicator 1 will be described.

To use the applicator 1, the user moves the applicator 15 from the removed position shown in Fig. 1 to the application position shown in Fig. Then, the application member 15 is brought into contact with the tip 10 adjacent to the heating member 25.

Next, the user presses the switch 47 to activate the power supply of the heating member 25 from the power source 20. [ This raises the temperature of the heating member 25 as shown by the curve C1 in the graph of Fig.

This graph shows the transition of the first parameter T, i.e. the temperature of the heating element 25 as a function of time t in the present example.

The cosmetic contained in the application member 15 is heated by the heating member 25 to enable application of the cosmetic on the keratinous fibers.

The first temperature sensor 35 measures the first parameter T and supplies it to the unit 30.

The unit 30 generates a second parameter T1 indicating the rate of temperature rise of the heating member 25 based on the first parameter T. [ The second parameter T1 becomes, for example, the value of the first parameter T after 10 seconds. T1 is, for example, about 50 캜.

Next, the unit 30 compares the second parameter T1 with the upper limit Tmax in this example. If the second parameter T1 is less than or equal to the threshold value Tmax, the unit 30 does not interrupt the power supply of the heating member 25 by the power source 20. [ This is true with T1 being less than Tmax at 5 [deg.] C.

The unit 30 is more advantageous to perform its own known adjustment function so that the first parameter T can reach the target temperature Tc. Tc is, for example, about 80 캜.

In this adjustment function, the unit 30 is selectively requested to shut off or correct the power supply to the heating member 25, but the unit can be set to a parameter indicative of the temperature rise of the heating member 25 after startup of the applicator 1 And does not execute the request on a basis.

However, if the user forgets to install the application member 15 on the tip 10 before use, the temperature rise of the member 25 recorded by the temperature sensor 35 is indicated by the curve C2. This curve C2 shows a temperature rise more abruptly than the curve C1 since the heat generated by the heating member 25 in the coating member 15 is not dissipated.

In this case, the second parameter generated by the unit 30 takes a value T2 exceeding the threshold value Tmax. Then, the unit 30 cuts off the power supply of the heating member 25. Again, this interruption is obtained by comparing the second parameter, which is unsuitable for adjusting the first parameter T but is indicative of the rate of temperature rise of the heating element 25, to the limit value.

With the above-described feature, the applicator 1 can detect the absence of the applying member 15 in contact with the tip 10 and cut off the electric power supply to the heating member 25. [ This prevents unnecessary heating by the heating member 25 and improves the content life of the autonomy of the output of the applicator 1. [

This also makes it possible to prevent the tip 10 from reaching a relatively high temperature at which the tip 10 can cause an image when the user directly uses the tip 10 on the keratin fibers.

An additional method of detecting the presence or absence of the application member 15 is to measure the temperature difference between the ambient temperature and the reference temperature at the second temperature sensor 40. [ The reference temperature is an expected temperature in the absence of the applying member 15. [ The temperature difference observed in the presence of the coating member 15 is as small as about 4 DEG. For this reason, this method is not preferred.

4 and 5, an applicator 100 according to a second embodiment of the present invention will be described. The applicator 100 is similar to the applicator 1 shown in Figs. Like elements have the same reference numbers and are not duplicated. Only differences will be described below.

The applicator 100 includes a reservoir 101 suitable for receiving a cosmetic, e.g., mascara.

The application member 15 is disposed at a non-use position (FIG. 4) where the application member is located inside the reservoir 101 and a use position (FIG. 4) where the application member is located outside the reservoir and is suitable for applying cosmetics on the keratinous fibers (Not shown).

The applying member 15 has, for example, a substantially brush shape. The application member 15 includes bristles 157 oriented substantially radially from the longitudinal direction L. The bristles 157 are distributed at an angle about the longitudinal direction L, for example, substantially regularly.

The applicator 100 includes, for example, a heating member 25 having a filament shape wound around the coating member 15 in a spiral shape.

In the unused position, the gripping member 5 is screwed onto the reservoir 101, for example.

The tip 10 has, for example, a rod shape.

In this embodiment, the application member 15 is not removable. The applicator 15 is advantageously located at the end of the tip 10.

Hereinafter, the operation of the applicator 100 will be described.

5, the temperature sensor 35 of the applicator 100 supplies a first parameter T indicative of the temperature of the heating member 25. As shown in FIG.

During normal use, that is, when the applying member 15 is in the use position, a temperature rise occurs according to the curve C3 shown in Fig.

The unit 30 generates a second parameter T1 which is a value adopted by the first parameter T after 10 seconds in the present embodiment. The unit 30 compares the second parameter T1 with the lower limit Tmin in this example.

T1 is, for example, 50 占 폚.

Tmin is, for example, 40 占 폚.

When the second parameter T1 is equal to or greater than the threshold value Tmin, the unit 30 does not interrupt the power supply of the heating member 25. [ The temperature rise continues and the unit 30 performs its function to adjust the first parameter T at the target value Tc.

However, if the user activates the heating with the application member 15 in an unused position (i.e., within the reservoir 101), the temperature rise indicated by the curve C4 in Figure 5 is much slower or even present I never do that.

Unit 30 generates a second parameter T2 that is less than the value Tmin. The control unit 30 cuts off the power supply of the heating member 25 by the power supply 20. [

T2 is close to the ambient temperature, e.g., about 25 占 폚. By the above-described feature, the applicator 100 is suitable for preventing unnecessary heating of the heating member 25. [

Claims (10)

An applicator (1; 100) for applying a cosmetic product on keratinous fibers,
The applicator (1; 100)
A tip 10 attached to the gripping member 5, a member 5 for applying the cosmetic to be firmly connected to the tip 10 during application of the cosmetic, 10) comprises a heating element (25; 125) for heating the application member (15) to enable application of the cosmetic on the keratinous fibers, and
A power source 20 for electrically driving the heating members 25 and 125 and for deriving temperature rises C1, C2, C3 and C4 of the heating members 25 and 125; At least a first temperature sensor (35) adapted to supply to the unit (30) at least a first parameter (T) indicative of a temperature of the heating member (25; 125) ),
The unit (30)
Generates second parameters T1 and T2 indicating the speed of the temperature rise (C1, C2, C3, C4) of the heating member (25; 125) based on the first parameter (T)
Compare the second parameter (T1, T2) with one or more threshold values (Tmax, Tmin) stored in a memory in the unit (30) and determine, based on the result of the comparison, Lt; / RTI >
An applicator for applying cosmetics. The method according to claim 1,
The limit value Tmax is the upper limit,
The unit (30) is adapted to detect whether the second parameter (T1, T2) is above the upper limit and, if the upper limit is exceeded,
An applicator for applying cosmetics. 3. The method according to claim 1 or 2,
The limit value Tmin is a lower limit,
The unit (30) is adapted to detect whether the second parameter (T1, T2) is below the lower limit and, if the lower limit is not exceeded,
An applicator for applying cosmetics. 4. The method according to any one of claims 1 to 3,
The second parameter (T1, T2)
The derivative of the first parameter T with the passage of time t,
The value of the first parameter (T) adopted by the first parameter (T) after a predetermined time that the heating member (25; 125) is driven by the power source (20)
The time taken by the first parameter T to reach a predetermined value, or
A time constant of the temperature rise (C1, C2, C3, C4) of the heating member (25; 125)
These combinations, particularly those taken from a linear combination thereof,
An applicator for applying cosmetics. 5. The method according to any one of claims 1 to 4,
Wherein the applicator comprises a second temperature sensor (40) adapted to measure at least a third parameter and wherein the third parameter is selected such that when the applicator member (15) is not rigidly connected to the tip (10) Wherein the second parameter (T1, T2) is calculated by the unit (30) using the first parameter (T) and the third parameter,
An applicator for applying cosmetics. 6. The method of claim 5,
The second temperature sensor 40 is located at a substantially distal end 55 of the tip 10 with respect to the gripping member 5,
An applicator for applying cosmetics. The method according to claim 5 or 6,
Wherein the applicator further comprises an insulator (45) longitudinally positioned between the second temperature sensor (40) and the heating member (25)
An applicator for applying cosmetics. 8. The method according to any one of claims 1 to 7,
The coating member 15 is detachable, and preferably has a comb-
An applicator for applying cosmetics. 9. The method according to any one of claims 1 to 8,
Wherein the applicator comprises a reservoir (101) adapted to receive the cosmetic product and wherein the applicator member (15) is located between an unused position in which the applicator member (15) is located within the reservoir (101) 15) is movable outside the reservoir (101), preferably the applicator member (15) is in the form of a brush,
An applicator for applying cosmetics. CLAIMS 1. A method for applying cosmetics on keratin fibers,
The method comprises, at least,
An applicator comprising a gripping member (5), a tip (10) attached to the gripping member (5), and a member (15) for applying the cosmetic to be firmly connected to the tip (10) (10) comprises a heating element (25; 125), a power source (20), a unit (30) for controlling the power source (20), and at least a first temperature sensor 35);
Supplying power to the heating member (25; 125) by the power source (20) to induce a temperature rise of the heating member (25; 125);
Heating the cosmetic product by the heating member (25; 125) to enable application of the cosmetic product onto the keratinous fibers;
Supplying to the unit (30) at least a first parameter (T) indicative of the temperature of the heating member (25; 125) by the first temperature sensor (35);
(T1, T2) indicating the speed of the temperature rise (C1, C2, C3, C4) of the heating member (25; 125) based on the first parameter (T) ; And
Comparing the second parameter (T1, T2) with the one or more threshold values (Tmax, Tmin) stored in the memory in the unit (30) by the unit (30) (25, 125) is cut off by said heating member (25, 125)
A method for applying cosmetics.

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