KR20190018689A - Method of controlling hair styling device for hair curling and hair styling device having such method - Google Patents

Abstract

The present invention relates to a method for controlling a curling device for a hair styling device (1) for hair culling, the device comprising a mandrel (7) and a curling device (9) configured to curl a tuft that has split around the mandrel And the curling machine is rotationally driven by the motor 12 whose function is controlled by the control member 19. [ The method includes a step of rotating the curling machine in a predetermined direction, which is started at the time of operation of the control member, and a step of stopping the rotation of the curling machine, which starts immediately after the control member is no longer operated. The method comprises a final step in which the reverse rotation of the curler is successively initiated following the stopping step of the curler, and the curler is rotationally driven until it reaches a predetermined stop position.

Description

Method of controlling hair styling device for hair curling and hair styling device having such method

The present invention relates to a hair styling device for hair curling, and more particularly, to a hair styling device including an apparatus for curling hair of a skein around a mandrel in order to realize the curling. The present invention particularly relates to a control method, wherein the method enables to detect when hair is caught in some cases when curling the hair tufts around the mandrel, and thus on the curling device, And to intervene on electronic means.

Hair styling devices for such hair curling are well known to those skilled in the art, and specific embodiments are disclosed, for example, in patent application EP2893832A1.

According to the patent application EP2893832A1, a hair styling device includes a curling device that allows curling of a tuft of hair around a fixed mandrel and mandrel. The curling apparatus includes a curling machine and a reversible rotation system of the curling machine. The configuration of the curling device initially provided in the starting position allows the hair tufts to be grabbed and then allows the curling of the hair tufts around the mandrel by the rotation effect of the curling device following the start of the curling device. The curling device is curled once at the end where the curling device has rotated several times in the starting position, and stopped once the user stops the curling device. The hair styling device includes an electronic control device for measuring the rotation rate of the motor driving the curling machine. When the turnover rate does not reach a predetermined threshold, this indicates that an unacceptable load has been imposed on the curling machine, indicating that hair was accidentally worn on the hair styling device. In that case, the electronic control unit reverses the direction of rotation of the motor until the curling implement reaches its starting position to release the hair tuft and release the hair tuft.

It is also known to use hair styling devices for other hair curling, such as those located on the curling machine, and magnetic field sensors located on the body of the hair styling device, where the electronic control means measure a limited number of revolutions of the curling machine have. The electronic control means is further configured to detect when the curling device has reached a full revolution, i.e., before the magnetic field sensor has re-sensed the passage of the magnet, when the power consumption or rotation time exceeds the threshold.

It is an object of the present invention to provide an electronic control means that is simplified in comparison with the conventional art and is independent of the functional modifications of the same type of hair styling device. In fact, the power consumption is dependent on the adjustment and therefore is not the same among hair styling devices of the same type. As a result, the difference between the nominal power consumption and the consumption threshold is different for each hair styling device of the same type. Likewise, each motor has a limit on the speed of rotation, which makes it possible to vary the difference between the time measurements between the two magnet passes and the time threshold, among the same type of hair styling devices.

For that purpose, the present invention relates to a method of controlling a curling device for a hair styling device for hair curling, the device comprising a mandrel and a curling device configured to curl the tufts that have split around the mandrel in rotation in a predetermined direction. The predetermined rotation direction may be clockwise or counterclockwise, and in some hair styling devices, the direction may be fixed by the user as the case may be. The curling machine is rotationally driven by a motor whose function is controlled by a control member. In addition,

- a step of rotating the curling device which is started in a predetermined direction in operation of the control member,

- a step of stopping the rotation of the curling machine which starts immediately after the control member is no longer operated,

- a reverse rotation step of a continuously starting curler following the step of stopping the rotation of the curler, wherein the step of rotating the curler until the curler reaches a predetermined stop position

.

More specifically, the reverse rotation step of the curler is started in succession to the rotation stop step of the curler regardless of the situation and the moment. Therefore, it is a step that is automatically started as soon as the control member is no longer operated.

In other words, the reverse rotation step of the curler is automatically started (that is, immediately after the control member becomes inoperative) successively to the rotation stopping step of the curling machine, and is rotationally driven until the curling machine reaches the predetermined stopping position to be.

The automatic step of reversing the direction of rotation of the curler as soon as the control member is no longer working makes it possible to considerably simplify the electronic control means of the device and in particular to avoid the installation of all torque sensors or output sensors. Indeed, if the user feels excessive tension on the hair, it will reflectively release the control member immediately, which in turn will automatically cause the reverse rotation of the curler to be carried out, thus causing the hair to unwind Allowing hair tension around the mandrel to be removed).

In one variant embodiment, the counting step of the reference unit is started at the start of rotation of the curling machine.

In another variant embodiment, the stopping step is also activated as soon as the reference unit reaches a predetermined threshold T. [

In another variant embodiment, the stopping step is also actuated as soon as at least one of the following conditions is met:

- when the reference unit reaches or further exceeds a predetermined first threshold (T, P), the curling machine reaches a reference position,

- the reference unit reaches a predetermined second threshold (T + Ts, P + Ps) exceeding the first threshold (T, P).

In an implementation of the method according to the invention, the method further comprises the step of, prior to the step of rotation of the curling machine initiated by the actuation of the control member, of initiating the curling device to the starting position when the curling device is not already in the predetermined starting position . The predetermined starting position allows the curling device to grasp the hair tuft to allow insertion of the hair tuft into the hair styling device and to curl the hair tuft about the mandrel.

In the implementation of the method according to the invention, the reference unit is time t. In that case, the first threshold T is greater than 3 seconds, preferably about 4 seconds. Besides, the second threshold value (T + Ts) is T + 0.3 sec to T + 1 sec. However, a modified base unit can be considered. As an example, according to the first modification, the reference unit is the electric consumption p of the motor, in which case the consumption of the first threshold value P and the second threshold value ((P + Ps) consumption amount are fixed. , The reference unit is the number of revolutions (n) performed by the curler and, in that case, preferentially selects the first threshold N, preferably exceeding six revolutions.

In a preferred embodiment of the method according to the invention, the stop position of the curler corresponds to a predetermined start position, which allows it to come directly into the start position for positioning the hair tuft within the hair styling device, without having to carry out the initialization step .

In a preferred embodiment of the method according to the invention the method comprises the step of heat treating the hair tufts for a certain period of time (TC) following a stop of the motor when a predetermined threshold is reached, i.e. in the normal condition of hair tared culling do.

In the implementation of the method according to the invention, the heating of the mandrel is operated during the heat treatment step.

The present invention also relates to a hair styling device for hair curling wherein the device comprises a curling device comprising a mandrel and a curling device configured to curl the tufts that have split around the mandrel during rotation in a predetermined direction which may be either clockwise or counter- . The curling machine is rotationally driven by a motor whose operation is controlled by a control member. In addition, the hair styling device includes electronic control means and means for counting reference units, and the hair styling device is configured to implement the desired control method of the present invention. The hair styling appliance also includes a mandrel heating system.

In the implementation of the hair styling appliance according to the invention, the appliance comprises a first threshold adjustment means of a reference unit. It makes it possible to apply the hair styling device to the length of the hair to be curled as much as possible.

In the implementation of the hair styling device according to the invention, the device comprises a system for limiting the maximum torque that can be delivered to the curling device. It makes it possible to prevent excessive tension on the hair when the hair is caught. Preferably, the hair styling appliance comprises an alarm system configured to alert the user when the torque delivered to the curling machine exceeds a predetermined threshold. Preferably, the alarm system is a mechanical clutch, which generates noise when the torque transmitted by the clutch reaches a threshold value.

The characteristics of the present invention will be demonstrated by reading the following detailed description of a non-limiting embodiment of a hair styling appliance for hair culling, with reference to the accompanying drawings.

Figs. 1 to 3 show an assembly of hair styling devices for curling at three angles, according to different angles of view.
4 is an example of a flowchart for explaining the operation principle of the hair styling appliance.

In the following detailed description, the term " device " is used to define a hair styling device for hair curling.

1 to 3, the device 1 includes a casing 2 and a handling handle 3. The casing 2 portion and the handling handle 3 portion are not shown in order to visualize the internal components of the device 1. [ The casing 2 includes a slot 4 that allows insertion of one tuft of hair (not shown) into the curling chamber 5 defined within the casing 2, . The slot 4 preferably has a " V " shape extending on the longitudinal axis of the casing 2. [ The casing (2) further includes an evacuating opening (6) on the side of its front side (2a) and curls and pulls out or draws the hair tuft through the opening. The device 1 includes a mandrel 7 having a base end 7a as shown in Fig. 1, which enables assembly with the casing 2. Fig. The mandrel 7 also includes a free end 7b located in the vicinity of the evacuating opening 6 in the curling chamber 5, as shown in Figs. The mandrel 7 extends in the longitudinal direction inside the curling chamber 5.

As shown in Figures 1 to 3, the device 1 comprises a curling device 9, which is in the form of a hollow and rotational circular. The curling machine 9 is positioned coaxially about the mandrel 7. The curling machine 9 has a first longitudinal end 9a bound to the cog wheel 10. The toothed wheel 10 is engaged with a ball screw 11 which is rotationally driven by a motor 12, whereby the curling machine 9 can be rotationally driven. The rotational direction of the motor 12 is reversible, whereby the rotational direction of the curling machine 9 is reversible. The motor 12, the toothed wheel 10 and the ball screw 11 constitute the preferred design of the rotary drive means 13 of the curling machine 9 and other variations may be taken into account without departing from the scope of the invention .

As shown in Figs. 1 to 3, the curling machine 9 preferably has a conical shape extending and extending in the direction of the free end 7b of the mandrel 7. Fig. The curler 9 includes a groove 14 or a cutout which extends on its rotational surface and opens onto the free edge 15 at the second longitudinal end 9b of the curler 9. [ Groove 14 is preferably of a trapezoidal shape and may take other shapes, e.g., somewhat cylindrical or oval. Likewise, the curler 9 may have a rotational surface that is cylindrical rather than conical. The two hooks 16a and 16b are arranged opposite to each other at the two ends 14a and 14b of the groove 14 in the extension of the free edge 15. [ In the starting position of the appliance 1, at the beginning of the curling operation, the groove 14 is located in the extension of the slot 4, as shown in Figures 1 to 3, Thereby allowing the portion to be inserted into the groove 14. Thus, the rotational drive of the curling machine 9 allows one of the two hooks 16a, 16b along the rotational direction of the motor 12 to grip the tufts to initiate curling of the tufts.

2 and 3, the device 1 includes a fingering 17 composed of a rigid part fixed at the position of the contour 6a of the evacuating opening 6. As shown in Fig. The fingering unit 17 has a number of functions. First, the fingering 17 enables the rotation of the tufts to be blocked during the curling so as to prevent the tufts from rotating around the mandrel 7. In addition, the fingering 17 ensures that the curled tufts can be unraveled without damage. The fingering 17 is oriented slightly apart from the free end 7b of the mandrel 7, somewhat perpendicular to the mandrel 7. [ When the curling machine 9 is driven to rotate, the curling machine takes a hair tuft that is stopped and held on one of the two stopping sides 18a, 18b of the fingering 17 to be curled about the mandrel 7 . The direction of the curling thus carried out follows the direction of the curler 9. However, only a single culling direction can be considered.

The casing 2 of the device 1 is operated by the handling handle 3 and the side 2a disposed in the evacuating opening 6 is positioned against the scalp during the curling operation. By arranging the handling knob 3 in the extension of the slot 4, the operation of the device 1 becomes easy. However, variations of the handling handle arrangement for the casing 2 may be considered without departing from the scope of the present invention.

The device 1 includes control means and electronic means for enabling the control of the operation of the motor 12 driving the curling device 9 in consideration of the accidental hair dressing that may occur during the curling operation of the hair tuft do. The means also enable control of a heating system (not shown) mounted in the mandrel 7 to heat the hair curl curled around the mandrel 7 prior to unwinding it.

The apparatus 1 includes a control member 19 for operating the blade switch 20 connected to the electronic box 21 when pressed. The motor 12 is also connected to the electronic box 21. The device also comprises a magnet 22 arranged on the curler 9 and rotating with the curling machine and a magnetic field sensor 23 fixed on the casing 2 of the device 1. [ When the magnet 22 is positioned facing the magnetic field sensor 23, the sensor transmits information to the electronic box 21 and the information is preferably placed in the alignment line of the slot 4 The position of the curling machine 9 corresponding to the starting position for allowing the hair tuft to be inserted into the curling machine 9 is indicated. When the curling machine 9 is not initially in the above-described starting position, the electronic box 21 is moved to the initial position, for example, when the appliance 1 is turned on, or during the primary operation of the control member 19, And is configured to automatically perform the reset at the start position. The magnet 22 and the magnetic field sensor 23 also enable the electronic box 21 to count the number of rotations performed by the curler 9 since the initial start of the motor 12. [

Fig. 4 details the control principle of the device 1 during the curling operation. At the beginning of the curling operation, after resetting the curling machine as the case may be, in the starting position of the curling machine 9 as described above, the hair cradle is moved into the groove 4 of the curling machine 9, (14). The user then depresses the control member 19, thereby initiating a curling cycle. The electronic box 21 then rotates the motor 12 and preferably counts the reference unit at time t. To this end, the electronic box 21 includes a memory card (not shown), for example, which incorporates a counting function of the motor 12 immediately after the first operation and a counting reinitialization function at the end of the cycle.

All release of the control member 19 automatically reverses the direction of rotation of the motor 12 after the temporary interruption time of the motor in some cases, regardless of the situation and the moment t, Returning it to the starting position, thus loosening the hair tuft, especially if the hair is caught. The electronic box 21 stops the motor 12 once the magnetic field sensor 23 is actuated and corresponds to returning to the starting position so that the hair tread can be pulled out when the hair tread is caught.

Conversely, as long as the control member 19 is held, until the rotation of the motor 12 and the count of the reference unit of time t reach the first threshold T (t = T) (T + Ts) time (t = T + Ts) until it exceeds the threshold value (T) time, but does not exceed the second threshold value (T + Ts) time Operation of the magnetic field sensor 23 by the magnet 22 during the time interval between the first and second thresholds (T <t <T + Ts) means that the starting position is the start position and the rotation of the curler 9 And the curling of the hair tufts is normally terminated in accordance with the number of times, which automatically causes the stopping of the motor 12 at the starting position of the curling machine 9 and the rotation of the mandrel 7 by the electronic box 21, (Not shown) operation of the heating system. The heating of the mandrel 7 and thus the heating of the curled hair around the mandrel 7 takes place over a period of 8 seconds to 15 seconds (8s <TC <15s), preferably 12 seconds (TC = 12s) ), Unless the user releases the control member 19 prior to the end of the heating time (TC). The heating step of the mandrel 7 corresponds to the heat treating step of the hair tuft, in which heat radiated by the mandrel 7 is transmitted to the hair to enable sustainable styling of the hair. Upon reaching the heating time TC, the heating system is stopped and a sound signal or an optical signal, preferably at least one beep, is transmitted to the user to signal that the heating time of the hair tuft is sufficient to obtain beautiful styling . Further, it is possible to consider that a plurality of beeps are emitted at regular time intervals, for example every 2 seconds, so as to indicate the progress of the heating time tc of the curled hair tuft to the user, At the end (tc = TC) it emits a long beep or successive short beeps. Then, immediately after the user releases the control member 19, the electronic box 21 rotates the motor 12 in the reverse direction until it returns to the position (start position) where the magnetic field sensor 23 and the magnet 22 are aligned Shut down the system if the heating system of the mandrel has not yet stopped (if the control member 19 is released before the end of the heating time (TC)).

Conversely, when the count reaches the second threshold (T + Ts) time but the magnetic field sensor 23 is not actuated by the magnet 22, this indicates that the hair is stuck. In this case, the electronic box 21 instantaneously stops the motor 12, which is being operated at that position, as long as the user presses the control member 19. Once the control member 19 is released, the electronic box 21 reverses the rotation of the motor 12 until it returns to the start position, before stopping the motor 12 and ending the cycle.

In a normal use example of a machine 1 without hair cuts, the electronic box 21 rotates the motor 12 until the entire hair tuft is curled around the mandrel 7 by the curling machine 9 . Accordingly, the first threshold value (T) time is determined according to the diameter of the mandrel 7 to which the hair tuft is curled, the rotational speed of the curling machine 9, and the average length of the hair tuft to be curled. Thus, the above mentioned speed and diameter parameters can be used to define a hair tray with an average length of about 30 cm to 35 cm at a first threshold (T) time of more than 3 seconds (T = 3s), preferably about 4 seconds Is selected to be able to fully curl around the mandrel 7. Preferably, the average length of the hair tuft will be fully curled around the mandrel 7 at the end of six turns of the curler 9, i.e., at the end of the magnet 22 passing six times forward of the magnetic field sensor 23 . On the other hand, the time parameter Ts is fixed to a value of 0.3 second to 1 second, and the second threshold value (T + Ts) time becomes T + 0.3 seconds to T + 1 seconds. This means that the sixth pass of the magnet 22 in front of the magnetic field sensor 23 occurs at time intervals of T to T + Ts, for example between 4 and 4.3 seconds, under steady-state conditions of use .

Other reference units may be used in place of time t. In particular, the minimum power p consumed by the motor during the rotation of the motor 12 can be counted. In this case, the first threshold value P power consumption and the second threshold value P + Ps power consumption are determined, and the control of the device 1 by the electronic box 21 is performed as described above, Is performed in exactly the same manner as that for FIG.

It may also be considered to count the number of revolutions n carried out by the curling machine 9, that is, the number of times the magnet 22 passes in front of the magnetic field sensor 23. [ (N) rotations of more than 6 times (N = 6 tr) so as to ensure that the entire length of the hair tuft with an average length of about 30 cm to 35 cm is curled around the mandrel 7, do. In addition, the second threshold value revolution is unnecessary, and is equal to the first threshold value N revolution. In practice, if a stitch occurs before reaching the first threshold N rotation speed, the user may, after a somewhat longer period of time, for example 4 to 5, which is the normal time at which the hair tuft is curled around the mandrel 7 After a lapse of a second, you will eventually become aware of your hair after you feel it pulled. In that case, the user naturally releases the control member 19, which in turn rotates the motor 12 until it returns to the starting position of the curler 9.

A simplified version of the device 1 may also be considered whereby the driving motor 12 of the curling machine 9 is immediately responsive to reaching a predetermined threshold T time, for example 4 seconds (T = 4s) The entire rotation of the hair tuft is properly curled, or if the control member 19 is released before reaching the predetermined threshold (T) time, that is, corresponds to the user sensing the fitting of the hair tuft In that case, the rotation is stopped immediately upon release. In all cases, after releasing the control member 19, the direction of rotation of the motor 12 is reversed to return the curler 9 to the predetermined rest position.

Thus, irrespective of the operating mode of the device and the conditions under which the control member is released, the reverse rotation of the motor is automatically performed after release of the control member, as can be seen in Fig. Following the rotation stop of the curling machine, the automatic step of rotating the curling machine in the reverse direction until the predetermined stop position is reached is carried out by using all the sensors 22 other than the magnet 22 and the magnetic field sensor 23, Thereby significantly avoiding the installation of

The device 1 may include one or two control buttons (not shown) connected to the electronic box 21, and thus the machine may have a first threshold T ) Time, a first threshold value (P) power consumption, or a first threshold value (N) number of revolutions so as to optimally apply the first threshold value to an average length of a user's hair tuft. Also, a button (not shown) for controlling the heating time (TC) of the mandrel 7 at the end of the curling operation of the hair tuft can be considered.

The machine 1 may also include a mechanical clutch (not shown) disposed at the ball screw 11 and the cog wheel 10 position and the mechanical clutch may rotate Thereby enabling the ball screw 11 of the cog wheel 10 to be detached from the clutch for neutralization. The mechanical clutch can also allow the teeth of the cog wheel 10 to jump at the ball screw 11 when the torque is exceeded, in order to create a noise that allows the user to be alerted of the fit of the hair.

Other features of the device 1 may be considered without departing from the scope of the present invention.

Thus, in an alternate embodiment of the present invention, the heating system of the mandrel would be able to be operated continuously, so that the mandrel heating step after the motor stop described above in the above-described embodiments is performed while the heat of the mandrel is transferred to the hair strand The heat treatment step of the hair bundle corresponding to the waiting time of the hair bundle can be replaced. At the end of the waiting time, a sound signal or an optical signal is delivered to the user, preferably at least one beep is transmitted to notify that the heating time of the hair tuft is sufficient to obtain beautiful styling.

Claims (19)

CLAIMS 1. A method for controlling a curling device of a hair styling appliance (1) for hair curling comprising a mandrel (7) and a curling device (9) configured to curl the hair of a tufting around the mandrel when rotated in a predetermined direction, Wherein the curling machine is rotationally driven by a motor (12) whose function is controlled by a control member (19), the method comprising:
- a step of rotating the curling machine in a predetermined direction, which is started in operation of the control member,
- a step of stopping the rotation of the curling machine which is started as soon as the control member is no longer working, and
- a reverse rotation step of the curling machine commencing with all the rotation stopping steps of the curling machine associated with stopping the control member operation, wherein the curling machine is rotationally driven until reaching a predetermined stopping position
&Lt; / RTI &gt; The method according to claim 1, characterized in that the counting step of the reference unit (t, p, n) is started when the rotation of the curling machine is started. 3. The method of claim 2, wherein the step of stopping rotation is activated as soon as the reference unit reaches a predetermined threshold value (T, P, N). 3. The method of claim 2, wherein the stopping step comprises:
- when the reference unit has reached or exceeds a predetermined first threshold value (T, P), the culling unit has reached the reference position,
- a predetermined second threshold (T + Ts, P + Ps) in which the reference unit exceeds the first threshold (T, P)
Wherein the at least one condition is met. 5. The method according to any one of claims 2 to 4, characterized in that the reference unit is time (t). 6. A method according to claim 5, wherein the threshold T is greater than 3 seconds, preferably about 4 seconds. 7. The method of claim 6, wherein the second threshold (T + Ts) is from T + 0.3 seconds to T + 1 seconds. 5. The method according to any one of claims 2 to 4, wherein the reference unit is an electric consumption (p) of the motor (12). The method according to any one of claims 2 to 4, wherein the reference unit is the number of revolutions (n) executed by the curling machine (9). 10. The method according to claim 9, wherein the first threshold value (N) is more than six turns or six turns. 11. A method according to any one of the preceding claims, characterized in that before the step of rotation of the curler (9) initiated by the actuation of the control member (19), unless the curler is already in the predetermined starting position , And an initialization step of bringing the curling machine into position. 12. The method according to claim 11, wherein the stop position corresponds to a start position. 13. The method according to any one of claims 3 to 12, wherein the method comprises heat treating the hair tuft for a period of time (TC) subsequent to stopping the motor that occurs when the threshold is reached. A hair styling appliance (1) for hair curling comprising a mandrel (7) and a curling device (9) configured to curl the hair of a tufted hair around the mandrel when rotated in a predetermined direction, the curling device A hair styling appliance according to claim 1, characterized in that the hair styling appliance comprises an electronic control means (21) which is rotationally driven by a motor (12) whose function is controlled by a control member (19)
Characterized in that the device comprises means for counting the reference units (t, p, n), characterized in that the device executes the control method according to any one of the claims 1 to 13. Devices (1). 15. A hair styling appliance (1) according to claim 14, comprising means for adjusting a first threshold (T, P, N) of reference units (t, p, n). 16. A hair styling appliance (1) according to claim 14 or 15, comprising a system for limiting the maximum torque that can be delivered to the curling machine (9). 17. A hair styling appliance (1) according to claim 16, comprising an alarm system configured to alert the user when the torque delivered to the curling machine (9) exceeds a predetermined threshold. 18. A hair styling appliance (1) according to claim 17, characterized in that the alarm system is a mechanical clutch that produces noise when the torque transmitted by the clutch reaches a threshold. 19. A hair styling appliance (1) according to any one of claims 14 to 18, comprising a heating system of the mandrel (7).

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