JPH0243215Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention relates to a hair styling brush, and in particular detects the moisture content of hair after washing and drying the hair at an appropriate value suitable for hair styling. This invention relates to a hair styling brush that is equipped with a moisture content detector.

(b) Conventional techniques and their problems As is well known, conventional hair styling after washing is called blow styling or hair blowing, and is carried out by using a hair drying means such as a hair dryer in combination with a hair styling brush. . In this hair blowing step, the most important thing is to know as accurately as possible the dryness of the hair, that is, the moisture content of the hair. For example, when curling hair, the moisture content of the hair may be too high (too wet) or too low (too dry).
However, it is difficult to style the curly hair. Generally, when hair is styled by drying it with a hair dryer after washing, hair styling is carried out when the moisture content of the hair reaches approximately 20%. It is preferable to partially curl the hair using a dryer and dry it until the moisture content is about 10%. Conventionally, the dryness of the hair during hair blowing has had to be determined by the operator's visual observation or touch, and it has required considerable skill to determine the appropriate moisture content of the hair. On the other hand, a moisture content meter has been developed and provided which measures the moisture content of the hair by directly holding the hair between the hairs. This hair clip-type moisture content measuring device lacks practicality in that hair blowing operations must be interrupted each time to measure the moisture content, and in that it uses a single point measurement method.

(c) Technical issues of the present invention Therefore, the present invention is equipped with a moisture content detector that can accurately and reliably measure the moisture content of the entire hair during hair blowing at the same time as the hair styling brush is operated. The purpose of the present invention is to provide hair styling brushes.

Furthermore, the present invention provides a hair styling brush that is equipped with a moisture content detector that can be very easily combined with existing hair styling brushes by making some modifications.

A further object of this invention is to provide a hair styling brush that is lightweight, compact, and equipped with a moisture content detector that has excellent operability.

(d) Technical Means of the Present Invention In order to achieve the above-mentioned object, the present invention specifically provides a hair styling brush for brushing the hair while drying the hair with a hair dryer etc. after washing the hair. at least a pair of measurement electrodes arranged parallel to each other along the axial direction of the brush in the part of the group of brush bristles, and an electric resistance value or electrostatic charge that changes depending on the moisture content of the hair via the measurement electrodes. a detection circuit that converts a capacitance value into a voltage value or a current value; a comparison circuit that compares an output signal of the detection circuit with an electric signal corresponding to a preset appropriate moisture content of hair and outputs a comparison signal; A hair styling brush comprising a moisture content detector that is activated in response to the output signal of the comparison circuit to display that the moisture content of the hair is at an appropriate value.

(e) Embodiments of the present invention Hereinafter, a hair styling brush equipped with a moisture content detector according to the present invention will be described in detail based on specific embodiments shown in the drawings.

This invention consists of a partially modified existing hair styling brush 1 and a moisture content detector 2 combined with the hair styling brush 1. The hair styling brush 1 includes a brush base 3, a group of bristles 4 on one side, and a handle 5 at one end of the brush base 3. In this idea,
The hair styling brush 1 is exclusively connected to the moisture content detector 2.
Partially modified for the purpose of combining. In one example, the hair styling brush 1 includes a first
As shown in the figure, the water content detector 2 is modified so that it can be housed within the brush base 3. The moisture content detector 2 is connected to the hair styling brush 1.
It may be attached to the back side of the brush base 3 in the above-mentioned hair brush 1.
It may be configured to be housed inside the handle portion 5 in the above.

On the other hand, the moisture content detector 2 includes a detector body 6 formed in a waterproof and airtight manner, and a pair of measurement electrodes 7 and 8 that are exposed to the outside from the detector body 6 and extend parallel to each other. ing. The measurement electrodes 7 and 8 connect the moisture content detector 2 to the hair styling brush 1.
When housed in the brush base 3 of the brush base 3, the bristles are arranged at the base of the brush bristle group 4 in the brush base 3 so as to extend parallel to each other along the axial direction of the brush. On the other hand, as shown in FIG. 3, the detector main body 6 includes a detection circuit 9, a comparison circuit 10, a display operating circuit 11, and a display 12 built therein in a waterproof and airtight manner. The detection circuit 9 detects an electrical resistance value or a capacitance value that changes depending on the moisture content of the hair via the measurement electrodes 7 and 8, and converts it into a voltage value or a current value. In one example, the detection circuit 9 is formed with a circuit configuration similar to that of an electric resistance meter as a circuit used to detect an electric resistance value, and in another example, the detection circuit 9 is formed with a circuit configuration similar to a capacitance meter as a circuit used to detect capacitance. Formed by configuration. The output signal e1 based on the voltage value or current value output from the detection circuit 9 and the preset appropriate moisture content of the hair (in the case of this invention, the moisture content appropriate for hair styling when washing and drying the hair, The reference signal e2 based on the voltage value or current value corresponding to the current value (approximately 20%) is compared, and a comparison signal e3 is detected. The comparison circuit 10
outputs a comparison signal e3 when the output signal e1 from the detection circuit 9 reaches a value corresponding to a preset appropriate hair moisture content. In this invention, based on the fact that the appropriate moisture content of hair is approximately 20%, the reference input e2 input to the comparison circuit 10 is approximately 10 ⁷ corresponding to the moisture content of hair.
~10 ⁸ Ω is input as a set value.
The output signal e3 of the comparison circuit 10 operates the indicator 12, such as the speaker 12A or the lamp 12B, via the indicator operating circuit 11. In the figure, 13 is a charging terminal, and 14
is a rechargeable battery, and 15 is a window hole for a display.

The hair styling brush equipped with a moisture content detector configured as described above can be used to maintain the moisture content of hair suitable for curling (approximately 20%
It is now possible to accurately and reliably detect the moisture content of the hair and notify the operator of the appropriate moisture content of the hair by sound or light. The worker is
When the indicator is activated, the hair styling process such as curling of the hair is started when the hair has been dried to an appropriate moisture content.

(f) Effects of the present invention The hair styling brush equipped with the moisture content detector of this invention having the above configuration can be easily assembled by slightly modifying an existing hair styling brush, and has a simple structure. It is simple, suitable for mass production, and economically advantageous.

Furthermore, this hair styling brush equipped with a moisture content detector can measure and detect the appropriate moisture content of the entire hair at the same time as the brushing operation, improving handling operability and reducing labor. It can be said that it is highly effective.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view showing an example of a hair styling brush equipped with a moisture content detector according to the present invention;
The figure is a schematic perspective view showing an example of a moisture content detector including a pair of electrodes, FIG. 3 is a block diagram showing an example of the circuit configuration of the moisture content detector, and FIG.
It is a graph showing changes in hair moisture content in dry hair styling after hair washing. 1...Hair styling brush, 2...Moisture content detector, 3
... Brush base, 4 ... Brush bristle group, 6 ... Detector body, 7, 8 ... Measurement electrode, 9 ... Detection circuit,
10...Comparison circuit, 11...Display operation circuit, 12
……display.

Claims (1)

[Claims for Utility Model Registration] A hair styling brush for brushing the hair while drying it with a hair dryer or the like after washing the hair, wherein groups of bristles of the brush are arranged parallel to each other along the axial direction of the brush. at least a pair of measurement electrodes, a detection circuit that converts an electrical resistance value or capacitance value that changes depending on the moisture content of the hair into a voltage value or a current value via the measurement electrode, and an output signal of the detection circuit. and an electrical signal corresponding to a preset appropriate moisture content of the hair, and outputs a comparison signal;
A hair styling brush equipped with a moisture content detector, comprising a display device that is activated in response to the output signal of the comparison circuit to display that the moisture content of the hair is at an appropriate value.