JPH02283313A - Hair brush - Google Patents

Abstract

PURPOSE:To simply and speedily carry out measurement of water content rate of hair in a wide range, and also accurately carry out measurement of water content rate during hair drying, by providing a measuring instrument by which the water content of hair is measured according to electric changes between electrodes, and an annunciating device which informs the results detects by the measuring instrument. CONSTITUTION:Two pairs of electrodes 13 and 14 are provided on a brush main body 10. The based of the electrodes 13 and 14 are respectively connected to connectors 18 and 19 of a printed circuit substrate 17, and the electrodes 13, 13', 14 and 14' are respectively covered with insulators 20. the oscillating frequency of an oscillating circuit varies with changes in the electrostatic capacity between the electrodes 13 and 14, and converted to voltage values by F-V converting circuit. Then, a control circuit makes an annunciating device 22 display the water content rate or sound a buzzer according to the voltage values of the F-V converting circuit (i.e., the water content rate). Therefore, the water content rate of hair can be measured during hair brushing, and a wide range of measurement can be carried out simply and speedily.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a hairbrush that can measure the moisture content of hair.

[Conventional technology]

Generally, methods for measuring the moisture content of hair include methods that directly measure the moisture content and methods that measure the moisture content indirectly.

The direct measurement method includes the weight W of the hair and the weight W after completely drying the hair.
[(W-W) /w: l × 100], and the moisture content W' of the hair was measured by titration with Karl Finscher's reagent, [W'/(
There is the Karl Fino-Sawyer method, which calculates the moisture content from the formula W-W')]×100.

However, with these direct measurement methods, the al11 constant and 7
It is necessary to cut and separate the hair, which poses problems in that it takes time to measure and requires a large-scale measuring device.

Therefore, indirect measurement methods are used that can easily and quickly measure the moisture content of hair. The indirect measurement method uses the physical properties of water, and general methods use high frequencies to measure the electrostatic Yoshikawa (permittivity) or electrical resistance (dielectric loss) of hair. Find the moisture content of the hair. This takes advantage of the fact that water has a higher dielectric constant and lower dielectric loss than other substances, and by first correlating it with the moisture content, you can easily and quickly measure the moisture content of your hair. can.

A hair moisture content measuring device using this indirect measurement method was disclosed in Japanese Utility Model Application Publication No. 57-412947, and a device used in a hair dryer was published in Japanese Utility Model Application Publication No. 6.
There is one disclosed in Publication No. 3-95508. These devices are configured to measure the moisture content of hair by providing an electrode on a probe that can be opened and closed and holding the hair between the electrodes.

[Problem to be solved by the invention]

The method of measuring the moisture content by holding the hair in place can only measure the moisture content in the part where the hair is held, and it is difficult to measure the moisture content over a wide area.
The problem is that the probe has to be opened and closed every time and remains stationary, which is extremely time-consuming and labor-intensive.

Also, when measuring the moisture content of hair while it is drying, if you measure the same area, that area will be held between the probes and drying will be delayed compared to other areas, making it impossible to measure the correct moisture content. There wasn't.

Furthermore, when drying is performed while brushing in order to dry efficiently, brushing must be interrupted each time the moisture content is measured, which is very inconvenient.

Therefore, the main features of this invention are that the moisture content of hair can be easily and quickly measured over a wide range of hair, that the moisture content of hair can be accurately measured during drying, and that the moisture content of hair can be measured without interrupting brushing. It is to provide a brush.

[Failure to solve the problem]

The hair brush of the present invention includes a pair of electrodes formed on the plunging surface of the brush body with a gap through which the hair passes, and a measuring section that measures the moisture content of the hair by electrical changes between the electrodes. and a notification means for notifying the results measured by the measurement unit.

[For production]

According to the hair brush of the present invention, when hair passes between the pair of electrodes provided on the brushing surface of the brushing body, an electrical change occurs between the electrodes6. 2. Therefore, the moisture content of hair can be measured. Therefore, the moisture content of hair can be measured while brushing, and measurements over a wide range can be easily and quickly performed.
Moreover, even during drying, there is no drying unevenness and the moisture content can be measured accurately [Example] A first example of the present invention will be described based on FIGS. 1 to 6.

In FIGS. 1 and 2, reference numeral 10 denotes a brush body, and bristles 12 are implanted on a Prinsle base 11. A pair of electrodes 13.1 are provided on the brush body 10 on both sides of the Prinsle base 11 in the brushing direction.
4 is provided.

Note that 15 is a power switch, and 16 is a reset button.

As shown in FIG. 3, the electrodes 13, 14 are connected to connectors 18.
19, and the tip is split into two to form an electrode 13'.
, 13'', 14', 14'' are provided alternately. Each electrode 13', 13''+4', 14'' is connected to the brush body 10.
are lined up in a direction perpendicular to the brushing direction. In addition, as shown in the fourth circle and FIG. 5, each electrode 13'1
3'', 14', 14'' are covered with an insulator 20.

The insulator 20 covers the electrodes 13', 13'', 14', and 14'' except for the measurement surfaces facing each other, and has a rounded shape as a whole.

FIG. 6 shows a block diagram of the electrical circuit from the electrodes 13, 1.4 to the notification means 22. First, electrode 1.3.
The oscillation frequency of the oscillation circuit changes in accordance with the change in the capacitance between the two, and the frequency of this oscillation circuit is converted into a voltage value by the F-V conversion circuit. Next, the control circuit controls the notification means 22 according to the voltage value (i.e., moisture content) of the F-V conversion circuit.
A signal is sent to the display/notification circuit, and the moisture content is displayed or notified by a buzzer. Note that the measuring section 21 is composed of an oscillation circuit, an F-conversion circuit, and a control circuit.

Further, the display maintains the highest moisture content during measurement, and is canceled by pressing the reset button 16. Furthermore, the buzzer alert notifies you with a buzzer when the moisture content is above a certain level, and the tone changes depending on the moisture content.

Next, the operation when used during drying with a hair dryer will be explained. First, the power switch.

After turning on the hair switch 15 and resetting it by pressing the reset button 16, brush the hair while drying it. After the hair is styled with the Prince Rue 2, it is guided between the electrodes 13 and 14, and the rounded insulator 20 connects the electrodes 13' and 1.
3'', 14', and 14'' facing surfaces (Zunawara, moisture content measurement surface).

In addition, an electrode 13' that determines the amount of hair for moisture content measurement;
13", 14', 14" distance and each electrode +3', 1
3", 14', 14" height, about 0.5 to 1 to make it less affected by the amount of hair during normal brushing.
．． It is set to about Om rn. And electrode 1
3.1.41 The maximum moisture content of the introduced hair is displayed and maintained, and is also notified with the tone of a buzzer. The user listens to the buzzer tone or sometimes the display (after watching, press the reset button 1G to reset the display), learns the current moisture content, and applies the Tear Lia from an area with a high moisture content. It dries. When properly dried (moisture content 11-1
3%) The buzzer goes off and the hair dryer finishes drying.

With the hair brush 0 configured as described above, the moisture content of the hair can be measured while brushing the hair, so measurements over a wide range can be easily and quickly performed without much effort.

In addition, the moisture content can be measured while brushing during drying, eliminating the uneven drying that occurs in the conventional method, allowing accurate moisture content measurement.

Furthermore, since the electrodes 13 and 14 are covered with the insulator 20, it is possible to prevent the capacitance between the electrodes 13 and 14 from changing due to influences other than hair, and it is possible to accurately measure the moisture content by IE. Moreover, the insulator 20 is rounded, and the hair is connected to the electrode 1.
The hair can be easily introduced between the electrodes 13', 13'' and 14', 14'', and the edges of the electrodes 13', 14' and 14'' can be prevented from damaging the hair.

Moreover, the electrodes 13 and 14 have a structure in which they are connected by being inserted into the connector 1819 of the board 17. During manufacturing, the electrode 13.1 is assembled after the brush body 10 is assembled.
It is possible to take 4 (=J) and it is easy to manufacture.Moreover,:
By connecting to J-Friku 18.19, lead wires are no longer required, and the distance between electrodes 13', 13", 14', and 1/l" as well as the distance from substrate 17 to electrode 13.14 can be reduced. It can be kept constant, improving measurement accuracy.

Further, since electrodes 13 and 14 are provided on both sides of the Prinsl base 11, the moisture content can be measured even when brushing on either the left or right side.

Note that the output of the oscillation circuit of the measuring section 2] may be directly input to the microcomputer, and the moisture content may be directly detected and reported from the oscillation frequency 1υ1. Alternatively, the moisture content may be determined from the electrical resistance of the hair introduced between the electrodes 13 and 14.

A second embodiment of the invention is shown in FIG. For this purpose, a notification means 23 consisting of an indicator is connected to the brush body 0 via a lead wire 24, and while brushing, I and El) 26 are lit in real time to display the moisture content. . This is convenient because it allows you to check the moisture content without interrupting brushing. (Although the power source was taken from a commercial power source using the power plug 25, it is also possible to use a dry battery or a rechargeable battery.

A third embodiment of the invention is shown in FIG. In this embodiment, the electrodes 13', 1.3", 14', 14" are connected to the air layer 27.
It is covered with an insulator 28 through the insulator 28. Since air has the lowest dielectric constant, the provision of the air layer 27 improves insulation, and the amount of material required for the insulator 28 can be reduced.

A fourth embodiment of the invention is shown in FIGS. 9 and 10. In this embodiment, four parts 29 are provided in the part of the brush body 10 sandwiched between the electrodes 13', 13", 14', and 14", and the length of the four parts 29 is equal to the length of the electrodes]3', 13", and 14'. ,
It is formed slightly longer than the width of 14". If you do this as shown, even if the brushing surface of the brush main body 10 gets wet with water or water accumulates, water can enter into the two four parts.
Adverse effects on measurements can be prevented. Moreover, part 4 29
is slightly longer than the width of the electrodes 13', 13'', 14', ]4'', so that hair does not fall into the recess 29.

A fifth embodiment of the invention is shown in FIGS. 11 to 14. The hair brush of this example has a Prinsle base 11.
An electrode 30.3 is placed at the base of the Prinsle 12 in the center of the
1 is set &j. Electrode 3 (1, 31 is an insulator 3 that guides the hair in the direction in which the hair is oriented during brushing)
It is covered by 2.

When configured in a straight line, the electrodes 30.31 are placed in the center of the Prinsle base 11, increasing the probability that hair will pass through the electrodes 30.31 during brushing, making it possible to reliably measure the moisture content. . In addition, the electrode 3 is
0.31 can maintain a certain distance from the human scalp and hands, and can accurately measure the moisture content of hair without being influenced by the human body, which has a high moisture content. Furthermore, since the electrodes 30.31 are fixed to the bristle 12, the electrodes 30.31 can be easily positioned, and the relative distance between the electrodes 3 (1, 31) can also be kept constant.

A sixth embodiment of the invention is shown in FIGS. 15 to 18Q, not shown. In this embodiment, an insulating base 33 is provided in the center of a bristle base 11, and electrodes 34 and 35 are fitted onto the Prinsle 12, which is passed through the insulating base 33, and covered with an insulator 36. be.

In this way, the electrodes 34 and 35 are connected to the Prinsl base 3.
3, so even if the hair is not fully introduced to the bristle base 11 during plunging,
Hair is introduced between the electrodes 34 and 35 and the moisture content can be measured.

A seventh embodiment of the invention is shown in FIGS. 19 to 21. In this embodiment, Prinsle 3 is attached to the Bristle base 11.
The hairs 7 and 6 are directly lined up in the brushing direction. Further, the electrodes 38, 39 and the insulator 40 are also provided in parallel in the brushing direction. In this way,
Since the hair is introduced in the same direction as the brushing direction, the moisture content can also be easily measured.

An eighth embodiment of the invention is shown in FIG. In this embodiment, in the seventh embodiment, the shape of the insulator 41 is approximately elliptical with a bulge in the center. In this case, since the spacing between adjacent insulators 41 is widened on both end sides, it is easy to introduce hair between the electrodes 3839. Moreover,
Since the spacing between the insulators 41 is narrower in the center, the hair is reliably introduced between the electrodes 38 and 39.

A ninth embodiment of the invention is shown in FIGS. 23 to 27. This embodiment relates to a hair brush that can be attached to a hair dryer. In the figure, 43 is a dryer main body, and 42 is a brush main body that is detachably attached to the dryer main body 43. Brush main body 42 The bristle base 44 is provided with a prindle 45 and a discharge port 46.Furthermore, the bristle base 44 is provided with an insulating base 49, and an electrode is connected to the bristle 45 inserted through the insulating base 49. 47 and 48 are fitted onto the outside, and the electrodes 47 and 48 are covered with an insulator 50.

Note that the gap between the electrodes/1.7.48 is located above the discharge port 46.

Further, the inside of the brush body 42 is configured as shown in FIG. 27. That is, by installing a warm air shielding plate 55,
A printed circuit board 56 is provided in the shielded space. And electrode 4
7. Connect the terminal 48 directly to the connector 57 of the printed circuit board 56 and connect it to the detection circuit of the printed circuit board 56''. The output of the detection circuit is connected via connector 58 to I.
It is connected to the control circuit inside the lyre main body 43. In addition, if the power source for moisture content detection is taken from a commercial power supply (: I, the moisture content detection circuit should be isolated from the commercial power supply using a transformer or coupler, or it should be connected to the measurement surface of the electrode 47./+8. A thin insulating film is provided to prevent electric shock.

In this case, a thin insulating film will have almost no effect on detection accuracy if it is designed with this in mind, and this film also serves to prevent the measurement surfaces of the electrodes 47 and 48 from becoming contaminated and deteriorating. Ru.

Next, the operation will be explained. First, turn on the power switch 51 of the dryer main body 43, and inhale! Air is sucked in and discharged from bD52 [warm air is discharged from 146, and the hair is dried while plunging with the brush body 42. 53 is
This is a switch that is automatically controlled by a moisture content sensor, and when turned off, it can be used as a regular hair dryer. When the changeover switch 53 is on, the brush body 4
Depending on the moisture content detected in step 2, if the moisture content is high, high-temperature air will be emitted (I+), and if the optimum moisture content (11 to 13%) is reached, the hair dryer power will be changed to low-temperature air or cold air. In other words, the discharge of the hair dryer "14" is controlled.
The wind discharged from 6 serves as a notification means.

Note that 54 is a reset I button.

With this configuration, it is possible to prevent damage to the hair due to excessive drying when setting the hair with a hair dryer.
Moreover, it is possible to improve the efficiency of drying. Furthermore, since the insulating base 49 is provided, the moisture content can be measured reliably. In addition, the moisture content measuring section between the electrodes 47 and 48 is connected to the discharge port 46-1.
- to allow warm air to pass through,
Water does not accumulate between the electrodes 4748, and even if they get wet, they dry quickly, allowing accurate measurements. Also, the electrode 47°48
Since the electrodes 47 and 48 are locked to the connector 57, the relative distance between the electrodes 47 and 48 can be kept constant, allowing stable moisture content measurement. Moreover, after the brush body 42 and the like are completed, the electrode 47.
48 can be installed, and manufacturing is easy.

Note that a buzzer notification or display may be performed depending on the measured moisture content value.

A tenth embodiment of this invention is shown in FIG.

In this embodiment, a connector 59 is provided inside the dryer body 43 so that when the brush body 42 is connected to the dryer body 43, the electrodes 47' and 4B' are also connected to the connector 59 at the same time. be.

〔Effect of the invention〕

According to the hairbrush of the present invention, when hair passes between a pair of electrodes provided on the brushing surface of the plunging main body, the moisture content of the hair can be measured by electrical changes between the electrodes. Therefore, the moisture content of the hair can be measured while brushing, the measurement over a wide range can be easily and quickly performed, and even during drying, the moisture content can be accurately measured without uneven drying.

[Brief explanation of drawings]

FIG. 1 is a plan view of the first embodiment of the present invention, FIG. 2 is a side view thereof, FIG. 3 is a perspective view of the electrode nozzle, FIG. 4 is a sectional view of the moisture content measuring section, and FIG. The figure is a V-V sectional view of FIG. 4, FIG. 6 is a block diagram of the electric circuit, FIG. 7 is an external view of the second embodiment of the invention, and FIG. 8 is a third embodiment of the invention. FIGS. 9 and 10 are partial sectional views of the fourth embodiment of the invention, FIG. 11 is a plan view of the fifth embodiment of the invention, and FIG. 12 is a side view thereof. , FIG. 13 is the 11th xm-xm sectional view, FIG. 14 is the XIV-X]V sectional view of FIG. 11, FIG. 15 is a plan view of the sixth embodiment of this invention, and FIG. 16 is its side view, and Figure 17 is the first
5 is a cross-sectional view of X-XVII, and Figure 18 is a cross-sectional view of
■-X■ sectional view, FIG. 19 is a plan view of the seventh embodiment of the present invention, FIG. 20 is an x
XXI-XXI sectional view of FIG. 21 is XXI,
Fig. 22 is a partial plan view of the embodiment of No. F (of this invention); Fig. 23 is a plan view of the ninth embodiment of the invention; Fig. 24 is a partial plan view thereof; xxv-xxv sectional view, Fig. 26 is xxv+-xx■ sectional view of Fig. 24,
FIG. 27 is a cutaway side view of the bottom portion thereof to FIG. 28 is a partially cutaway side view of the tenth embodiment of the present invention.

Claims (1)

[Claims] A pair of electrodes are provided on the brushing surface of the brush body with a gap through which the hair passes, and a measuring section is provided for measuring the moisture content of the hair based on electrical changes between the electrodes. A hair brush equipped with a notification means to notify the results.