JP2862964B2 - brush - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brush capable of measuring the moisture content of hair as an electrical change such as capacitance between a pair of electrodes.

[Prior Art] Generally, as a means for measuring the water content of hair, there are a case where the water content is directly measured and a case where it is measured indirectly.

If a direct measurement, and measuring the weight W ₀ at full drying and weight W at the time of measurement of the hair (W-W ₀₎ / W ₀ × 100 obtains the moisture content by means (Ze'inuiho), hair The water content W 'was measured by Karl-Fuscher reagent titration, and W' / (W-
W ') × 100 means (Karl-Fusher method)
There is.

However, this direct measurement method can serve as a standard for measuring the moisture content, but it is necessary to cut and separate the hair. In addition, there is a drawback that the measurement takes time and the size of the measuring device becomes large.

On the other hand, the indirect measurement method utilizes the physical properties of water, and irradiates the hair with light that is easily absorbed by water in the infrared light range, and obtains the moisture content from the absorption rate (infrared spectroscopy)
And means for determining the moisture content by measuring the capacitance (dielectric constant) or electrical resistance (dielectric loss) of hair by utilizing the fact that water has a large dielectric constant and a small dielectric loss compared to other substances ( High-frequency method). However, since the former uses infrared light, it is necessary to devise measures for eliminating the influence of disturbance light and maintenance on the dirt on the sensor surface. In addition, the latter is generally used because the device becomes large.

As a device for measuring the moisture content of hair using the latter method, there are, for example, Japanese Utility Model Laid-Open No. 57-112947 and Japanese Utility Model Laid-Open No. 63-95508. That is, in these methods, an electrode is provided on a probe that can be freely opened and closed, and the hair content is measured by holding the hair between the probes.

[Problems to be solved by the invention]

However, since only the moisture content of the pinched portion can be measured, it is necessary to open and close the probe and pinch the hair each time to measure the moisture content of a wide range of hair. There is a drawback that the operation is difficult to measure the moisture content of water.

In particular, when measuring the moisture content of the hair while drying with a dryer to know the degree of drying, if the same place is measured, the drying is slower than other parts, so the overall dryness can not be measured, and the overall dryness In order to know this, it was necessary to interrupt the drying with a dryer and measure the moisture content each time, which was very inconvenient.

Accordingly, an object of the present invention is to provide a brush that can easily and quickly measure the moisture content while brushing, and that can reliably detect the moisture content of short hair without inhibiting the brushing action of long hair. is there.

[Means for solving the problem]

In the brush of the present invention, at least one pair of protrusion-shaped electrodes for detecting moisture is provided in a large number of bristles of the bristle base, and the tip of the electrode retreats to a position close to the tip of the bristle and to a root side of the bristle. And a position changing means for movably moving at least one of the bristle and the electrode so as to move relatively to the position.

[Action]

According to the configuration of the present invention, brushing can be performed by shampooing hair with bristle. In this case, since the hair enters between the electrodes, the moisture content of the hair can be detected by a high frequency method or the like, so that the moisture content can be easily and quickly measured while brushing. In the case of short hair, the hair can enter between the electrodes by bringing the tip of the electrode closer to the tip of the bristle by the position changing means, so that the moisture content can be detected. on the other hand,
In the case of long hair, by positioning the electrode on the base side of the bristle, the clearance of the long hair is not inhibited.

〔Example〕

A first embodiment of the present invention will be described with reference to FIGS. 1 and 2, the bristle base 3 is fixed to the brush body 1, the bristle 2 is planted on the bristle base 3, and the moisture sensor 4 It is installed movably. In the moisture sensor 4, a protruding ground-side electrode 8 and a hot-side electrode 9 are planted. Reference numeral 5 denotes a power switch provided on the grip 1a of the brush body 1, and reference numeral 6 denotes a sensor position changeover switch of the position changing means.

FIG. 3 is an enlarged view of the moisture sensor 4, in which electrodes 8, 9 are erected alternately on a sensor base 7 made of an insulator, and a hair introduction part 10 made of an insulator is provided on the upper end of the electrodes 8, 9. Is provided. The hair brushed by the hair introduction unit 10 is separated and the moisture measurement space 1 between the electrodes 8 and 9 is smoothly separated.
It is easy to be led to 1. The electrodes 8, 9 and the electrode terminals 8a, 9a are connected inside the sensor base 7, respectively.

FIGS. 4 and 5 illustrate the operation of the sensor position changeover switch 6. FIG. The moisture sensor 4 having the electrodes 8 and 9 is provided so as to be vertically movable with respect to the bristle base 3, and the socket 12 provided on the printed board 13 is
The printed circuit board 13
Is electrically connected to Since the bristle 2, the bristle base 3, and the printed circuit board 13 are fixed to the brush body 1, the moisture sensor 4 can be moved up and down with respect to the bristle base 3 by operating the sensor position switch 6. Here, the position changing means of this embodiment has a sensor position switch 6 and a sensor push-up plate 14 which pushes up the moisture sensor 4 in conjunction with the sensor position switch 6.

When the sensor position switch 6 is set to long hair, the moisture sensor 4 is free, and the moisture sensor 4
It is pushed into the bristle base 3 side as shown in the figure.

Next, when the sensor position changeover switch 6 is set to short hair, the sensor push-up plate 14 enters between the moisture sensor 4 and the printed circuit board 13 in conjunction with the sensor position changeover switch 6, and the moisture sensor 4 is pushed up, and Base 3
It protrudes upward, as shown in FIG. However, the moisture sensor 4 is provided with a stopper (not shown) so that it does not protrude beyond the state shown in FIG. When the sensor position changeover switch 6 is set to long hair again, the sensor push-up plate 14 comes off the moisture sensor 4 and can be retracted due to the stress of the hair.

The printed circuit board 13 is provided with a moisture content detection circuit (not shown) for detecting the capacitance between the electrodes 8 and 9, and a display means (not shown) for displaying / notifying the detection of the moisture content is provided by a brush. It is provided on the main body 1.

The operation will be described. That is, when the power switch 5 is turned on and the hair is brushed with a brush, the bristle 2
The shaved hair is guided between the electrodes 8 and 9 of the moisture sensor 4. In this case, even if the amount of hair guided by brushing changes, the height of the electrodes 8, 9 in the direction of the bristle 2 is set to about 0.5 to 1 mm so that a certain amount of hair is introduced into the moisture content measurement space 11. ing. In addition, even if a large amount of hair is introduced, an electrode for a certain amount of hair or more due to the insulator of the hair introduction section 10.
Separated from 8,9 so that it has no effect. The moisture content of the hair guided into the moisture content measurement space 11 is detected as the capacitance between the electrodes 8 and 9, and is notified to the user by display or buzzer notification each time. The moisture content measuring space 11 is arranged above the bristle base 3 by the sensor base 7 so that the hair is surely introduced into the moisture content measuring space 11 of the moisture sensor 4. However, in the case of short hair, the tip of the bristle 2 may hit the scalp and may not be sufficiently guided to the moisture sensor 4 even if brushing. Therefore, in the case of short hair, the sensor position changeover switch 6 is switched in advance for short hair. As shown in FIG.
As a result, the moisture sensor 4 is brought closer to the tip of the bristle 2, whereby the hair is reliably guided to the moisture sensor 4 even when brushing short hair.

Next, in the case of long hair, the moisture content can be measured at the position shown in FIG. 5, but the effective length of the bristle 2 is short due to the moisture sensor 4, and there is a drawback that a sufficient clearance cannot be secured. A sufficient clearance is secured by moving the changeover switch 6 backward for the changeover electrodes 8, 9 for long hair as shown in FIG. By moving the moisture sensor 4 up and down according to the short hair and the long hair with the sensor position changeover switch 6 as described above, the hair is reliably introduced into the moisture sensor 4 in both cases, and in addition, the clearance amount in the case of the long hair Without sacrificing.

According to this embodiment, it is possible to easily and quickly measure the moisture content of the hair while performing normal brushing without requiring the operation of moisture content measurement. In addition, since the moisture sensor 4 is relatively movable with respect to the bristle 2, regardless of short hair or long hair, the hair can be reliably introduced into the moisture sensor 4 to accurately measure the moisture content, and also when the hair is long. A sufficient amount of hair clearance can be secured.

Note that a spring may be provided between the moisture sensor 4 and the printed circuit board 13 to urge the moisture sensor 4 in a direction to protrude outward.

FIG. 6 shows a second embodiment of the present invention. That is,
This brush is configured such that the moisture sensor 44 can move up and down with respect to the bristle base 3. That is, the bristle 2, the bristle base and the printed circuit board 13 are fixed to the brush body 1, and only the moisture sensor 4 moves freely. The position changing means is configured by pushing up the moisture sensor 4 with respect to the printed circuit board 13 by a spring 15.
Therefore, when no force is applied to the moisture sensor 4, it protrudes maximally from the bristle base 3, and in this state, it is suitable for short hair. In the case of long hair, when the head is brushed, the hair is guided to the moisture sensor 4 in the same state as in the case of the short hair, but when the head is passed, the bristle 2 penetrates through the hair without being hindered by the head. Spring 15 due to tension during brushing
Is pressed, the moisture sensor 4 falls into the bristle base 3, and the effective length of the brushing of the bristle 2 is relatively increased. As a result, a sufficient hair clearance can be secured.

FIG. 7 shows a third embodiment of the present invention. That is,
In this brush, a bristle base 3, a moisture sensor 4, and a printed circuit board 13 are fixed to the brush body 1, a bristle 2 is provided on the bristle base 3 so as to be able to advance and retreat, and is separated from the printed circuit board 1 by a spring 15. It is urged in the direction to be.
Therefore, when brushing the head of short hair or long hair, the bristle 2 hits the scalp and repels the spring 15 due to the pressing force, so that the bristle 2 is pressed against the bristle base 3 and the moisture sensor 4 relatively moves the head. And hair is introduced, making it easier. However, if the hair is brushed past the head with long hair, there is nothing to push the bristle 2, and the bristle automatically projects to the maximum with respect to the bristle base 3, and a sufficient amount of hair clearance can be obtained.

A fourth embodiment of the present invention is shown in FIGS. That is, in this brush, the bristle 2 and the bristle base 3 are integrated, the edge 3a of the bristle base 3 is attached to the groove 1a of the brush body 1 so as to be able to advance and retreat, and the spring 15
And is pushed up in a direction away from the print 13.
Then, the moisture sensor 4 is fixed to the printed board 13, and the printed board 13 is fixed to the brush body 1.

In this embodiment, when brushing the hair of the head of short hair or long hair, the tip of the bristle 2 hits the scalp and is pushed into the brush body 1, so that the moisture sensor 4 relatively comes out toward the head. In addition, the hair is easily introduced into the moisture content measurement space 11. Bristle 2 when brushed past the head of long hair
Is free and the pressing force is eliminated, so that the spring 15 protrudes from the brush body 1 and the moisture sensor 4 is relatively pushed into the bristle base 13, and the hair clearance of the bristle 2 is sufficiently secured. .

FIG. 10 shows a fifth embodiment of the present invention. That is,
This brush is installed on a dryer. It can be dried efficiently by combining with a dryer and has a built-in control circuit (not shown) that automatically controls the output of the dryer according to the detected moisture content. Thereby, it is possible to prevent the hair from being damaged due to excessive drying. In this dryer, the bristle 2 is implanted in the bristle base 3, the moisture sensor 4 is installed substantially at the center of the bristle base 3, and an attachment 19 having a discharge port 18 is attached to the dryer 20. This attachment 19 has the same configuration as the brush of the above embodiment. Reference numeral 21 denotes a power switch, 22 denotes an attachment / detachment button for the attachment brush 19, 23 denotes a moisture sensor operation changeover switch, 24 denotes a suction port, and 25 denotes a power line lead-in section. The moisture sensor 4 is movable relative to the bristle 2 in the same manner as in the above embodiment, so that hair can be reliably introduced into the moisture sensor 4 regardless of whether the hair is short hair or long hair.

Regarding the operation, when the moisture sensor changeover switch 23 is off, when the power switch 21 is turned on in the same manner as a normal dryer, warm air or cold air is obtained. Here, when the moisture sensor changeover switch 23 is turned on, the moisture content of the hair introduced by the brushing of the moisture sensor 4 is detected. When the moisture content is high, the control circuit discharges the hot air of the maximum output from the outlet 18. Is controlled in such a way that high-efficiency drying is performed. As the hair gradually dries, the temperature of the hot air is reduced according to the moisture content of the hair, and when the optimal moisture content (10 to 13%) is reached, cool air is used. The drying is automatically stopped, thereby preventing overdrying of the hair and preventing damage to the hair. In addition, by informing the moisture content of the hair in the course of drying by a display / notification means or a buzzer notification, the hair can be dried from a location having a high moisture content, and can be dried effectively. The electrode of the moisture sensor 4
By coating the surfaces of the electrodes 8 and 9 with an insulator, electric shock can be prevented without insulating the moisture sensor circuit from a commercial power supply, and corrosion of the surfaces of the electrodes 8 and 9 can be prevented.

〔The invention's effect〕

According to the brush of the present invention, since the moisture content of the hair can be detected by a high frequency method or the like by allowing the hair to enter between the electrodes, the moisture content can be easily and quickly measured while brushing. In the case of short hair, the hair can enter between the electrodes by bringing the tip of the electrode closer to the tip of the bristle by the position changing means, so that the moisture content can be detected. on the other hand,
In the case of long hair, by arranging the electrode on the base side of the bristle, there is an effect that the clearance amount of the long hair is not hindered.

[Brief description of the drawings]

1 is a plan view of an embodiment of the present invention, FIG. 2 is a front view thereof, FIG. 3 is a partially enlarged cross-sectional front view thereof, and FIG. 4 is a partial cross-sectional view when measuring the moisture content of long hair. FIG. 5 is a partial cross-sectional view for measuring the moisture content of short hair, FIG. 6 is a partial cross-sectional view of the second embodiment, and FIG.
8 is a partial cross-sectional view of the fourth embodiment, FIG. 9 is a partial cross-sectional view showing a connecting portion between the brush body and the bristle base, and FIG. 10 is a fifth embodiment. It is a top view of an example. DESCRIPTION OF SYMBOLS 1 ... Brush body, 2 ... Bristle, 3 ... Bristle base, 6
... Sensor position changeover switch for position variable means, 8,9 ... Electrode

Claims (1)

(57) [Claims] 1. A brush body, a bristle base provided on the brush body and having a large number of bristles implanted therein, and at least one pair of water detecting projections provided in the plurality of bristles of the bristle base. And at least one of the bristle and the electrode is moved so that the tip of the electrode relatively moves to a position close to the tip of the bristle and to a position retracted to the base side of the bristle. A brush having position changing means for enabling the brush.