Cordless Brush Iron

The compact cordless brush iron addresses the issue of heat transmission and styling challenges by employing a unique heating and pin configuration, ensuring effective hair styling and easy portability.

JP7624548B1Active Publication Date: 2025-01-30KOIZUMI SEIKI CORP
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Patent Information

Application Number
JP2024129943
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-08-06
Publication Date
2025-01-30
Estimated Expiration
2044-08-06

AI Technical Summary

Technical Problem

Conventional cordless hair care devices are not suitable for carrying in a makeup pouch due to their size, and when made compact, they fail to transmit sufficient heat to the hair, making it difficult to style hair effectively.

Method used

A compact cordless brush iron with a handle, brush portion, and a unique heating and pin configuration that allows for sufficient heat transmission and easy styling, featuring a first heating portion with a curved design and staggered pin sections, along with a removable cap for cosmetic pouch compatibility.

Benefits of technology

The device transmits sufficient heat to the hair, enabling easy styling even in a compact form, prevents hair from slipping off the brush, and can be conveniently carried in a cosmetic pouch.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a cordless brush iron suitable for carrying in a cosmetic pouch or the like. [SOLUTION] The cordless brush iron 1 has a handle portion 2 and a brush portion 3. The brush portion 3 is provided with a first heating portion 6 that is disposed in the center portion of the brush portion 3 in the short side direction so as to extend in the long side direction of the brush portion 3 and has a curved portion protruding from the surface of the brush portion 3, a plurality of second heating portions 7 that are erected on the curved portion of the first heating portion 6 and are arranged at intervals so as to be aligned in the long side direction of the brush portion 3, and a plurality of pin portions 8 that are erected on both sides of the first heating portion 6 in the short side direction of the brush portion 3 and are arranged at intervals so as to be aligned in the long side direction of the brush portion 3.
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Description

[Technical field]

[0001] The present invention relates to a compact cordless brush iron. [Background technology]

[0002] Traditionally, even if you styled your bangs at home, they could fall apart when you went out due to the weather, humidity, etc. For this reason, there was a demand for a way to style frizzy bangs and partings while out and about.

[0003] Portable (cordless) hair care devices have been proposed in the past (see, for example, Patent Document 1). This conventional hair care device is used not only for drying hair while brushing it, but also for massaging hair and the scalp. In other words, this conventional hair care device is a type of hair dryer and a type of scalp care device. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6971157 Summary of the Invention [Problem to be solved by the invention]

[0005] However, although the conventional hair care devices are indeed portable (cordless), they are not suitable for women to carry in a makeup pouch, for example. If a cordless brush iron is made compact enough to fit in a makeup pouch (similar to other cosmetics), the size of the heating unit will also be small, resulting in a problem that the amount of heat cannot be sufficiently transmitted to the hair, making it difficult to style the hair. However, the conventional hair care devices do not take such issues into consideration at all.

[0006] To provide a cordless brush iron that can transmit sufficient heat to hair and easily style hair, even if it is compact enough to be put in a cosmetic pouch or the like, and that has been made in consideration of the above problems. [Means for solving the problem]

[0007] The cordless brush iron of the present invention is a cordless brush iron having a handle portion and a brush portion, the brush portion comprising: a first heating portion disposed in a central portion in a lateral direction of the brush portion so as to extend in a longitudinal direction of the brush portion and having a curved portion protruding from a surface of the brush portion; a plurality of second heating portions erected on the curved portion of the first heating portion and arranged at intervals so as to be aligned in the longitudinal direction of the brush portion; and a plurality of pin portions erected on both sides of the first heating portion in the lateral direction of the brush portion and arranged at intervals so as to be aligned in the longitudinal direction of the brush portion. The heat source part of the first heating part has a curved shape that conforms to the curved shape of the first heating part. is.

[0008] According to this configuration, since the first heating section is provided on the surface of the brush section and extends in the longitudinal direction, the size of the heating section can be secured large even if the cordless brush iron is made compact to a size that can be put in a cosmetic pouch (similar to the size of other cosmetics). This allows a sufficient amount of heat to be transmitted to hair, making it easy to style hair. Furthermore, since the first heating section is provided with a curved portion that protrudes from the surface of the brush section, even with a compact cordless brush iron, it is easy to use this curved portion to style hair (for example, to straighten bangs or create beautiful curls in bangs). Furthermore, the heat of the iron evenly straightens the cuticle, making it possible to give hair a glossy finish even when you are out and about.

[0009] In addition, in the cordless brush iron of the present invention, the pin portion may include a plurality of inner pin portions arranged near the first heating portion and a plurality of outer pin portions arranged outside the inner pin portions, and the tips of the inner pins may be arranged at a higher position than the tips of the outer pins, and the tips of the outer pins may be arranged at a higher position than the tips of the second heating portion.

[0010] According to this configuration, the pin section is composed of two rows (an inner pin section and an outer pin section), the tips of the inner pins are positioned higher than the tips of the outer pins, and the tips of the outer pins are positioned higher than the tips of the second heating sections. Therefore, while moving the brush section to style bangs, etc., the hair (bangs, etc.) is less likely to come off the brush section, and sufficient heat can be transmitted to the hair, making it easy to style hair (bangs, etc.) even with a compact cordless brush iron.

[0011] In the cordless brush iron of the present invention, the inner pin portions and the outer pin portions may be arranged alternately in a plan view.

[0012] With this configuration, the two rows of pins (inner pins and outer pins) are arranged so that they are staggered when viewed in a plane, so that hair (bangs, etc.) is less likely to come off the brush part while the brush part is being moved to style bangs, etc., making it easy to style hair (bangs, etc.) even with a compact cordless brush iron.

[0013] In addition, the cordless brush iron of the present invention may include a cap portion that is removably attached to the handle portion so as to cover the brush portion, and when the cap portion is attached to the handle portion, there is no step between the handle portion and the cap portion, and the handle portion and the cap portion may have an integrated stick-like appearance.

[0014] With this configuration, when the cap is attached to the handle, the cordless brush iron has a unified stick-like appearance, so that it does not look out of place when placed in a cosmetic pouch, etc., just like other cosmetics. Furthermore, by attaching the cap after heating has stopped, the cordless brush iron can be easily carried in a cosmetic pouch, etc., just like other cosmetics.

[0015] In addition, in the cordless brush iron of the present invention, a power switch, a first light source, and a second light source may be provided on the bottom surface of the handle, and when the power switch is pressed and held down while the first light source and the second light source are off, the first light source is turned on without heating the first heating unit and the second heating unit starting, and when the power switch is pressed and held down while the first light source is on, heating of the first heating unit and the second heating unit starts and the first light source and the second light source are turned on, and when the power switch is pressed and held down while the first light source and the second light source are on, heating of the first heating unit and the second heating unit is stopped and the first light source and the second light source are turned off.

[0016] According to this configuration, the first and second heating units do not start heating unless the power switch is pressed and held down and then pressed briefly again. In other words, the first and second heating units do not start heating just by pressing the power switch briefly. This makes it possible to prevent the power switch from being pressed accidentally and the first and second heating units from starting heating when the cordless brush iron is carried in a cosmetic pouch or the like like other cosmetics. Effect of the Invention

[0017] According to the present invention, even if the cordless brush iron is made compact to a size that can be put in a cosmetic pouch, the size of the heating part can be secured large, so that a sufficient amount of heat can be transmitted to the hair, making it easy to style the hair. [Brief description of the drawings]

[0018] [Figure 1] FIG. 1 is a perspective view of a cordless brush iron (with a cap removed) according to an embodiment of the present invention. [Diagram 2] FIG. 1 is a perspective view of a cordless brush iron (with a cap attached) according to an embodiment of the present invention. [Diagram 3] FIG. 2 is an explanatory diagram (plan view) of a brush part of the cordless brush iron in the embodiment of the present invention. [Figure 4] 2 is an explanatory diagram of a brush part of the cordless brush iron in the embodiment of the present invention (as viewed from the direction A in FIG. 1). [Diagram 5] 2 is an explanatory diagram of a brush part of the cordless brush iron in the embodiment of the present invention (as viewed from the direction A in FIG. 1). [Figure 6] 1 is an explanatory diagram (a cross-sectional view showing an internal structure) of a brush part of a cordless brush iron according to an embodiment of the present invention. [Figure 7] 2 is a diagram showing a handle of the cordless brush iron in the embodiment of the present invention (as viewed from the direction B in FIG. 1). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Hereinafter, a cordless brush iron according to an embodiment of the present invention will be described with reference to the drawings. In this embodiment, a compact cordless brush iron that can be carried in a cosmetic pouch or the like by a woman will be described as an example.

[0020] The configuration of a cordless brush iron according to an embodiment of the present invention will be described with reference to the drawings. Figures 1 and 2 are perspective views showing a cordless brush iron according to the present embodiment. As shown in Figures 1 and 2, the cordless brush iron 1 includes a main body 4 having a handle portion 2 and a brush portion 3, and a cap portion 5 detachably attached to the handle portion 2.

[0021] The cap portion 5 is configured to cover the brush portion 3 when attached to the handle portion 2 (see FIG. 1). When the cap portion 5 is attached to the handle portion 2, there is no step between the handle portion 2 and the cap portion 5, and the handle portion 2 and the cap portion 5 have an integrated stick-like appearance (see FIG. 2). As an example of the external size of the cordless brush iron 1 of the present application with the cap portion 5 attached, the length of the long side is less than 14 cm and the short side is also less than 2.5 cm. Since this is smaller than a typical cordless brush iron, it can be carried in a cosmetic pouch or the like.

[0022] Here, the main parts of the brush part 3 will be described with reference to Figs. 3 to 6. Figs. 3 to 6 are explanatory diagrams of the brush part 3 of the cordless brush iron 1. As shown in Fig. 3, the brush part 3 includes a first heating part 6 arranged in the central part of the short side direction of the brush part 3 so as to extend in the longitudinal direction of the brush part 3, and a plurality of second heating parts 7 arranged at intervals in the longitudinal direction of the brush part 3. As shown in Figs. 4 to 6, the first heating part 6 has a curved part protruding from the surface of the brush part 3, and the second heating part 7 is erected on the curved part of the first heating part 6. The material of the first heating part 6 and the second heating part 7 is, for example, aluminum or an aluminum alloy having a high thermal conductivity, and a material that efficiently transfers heat is used, but is not limited to aluminum or an aluminum alloy. In addition, the first heating part 6 and the second heating part 7 can also be coated with ceramic. Incidentally, the maximum temperature of the heating part is, for example, 180°C.

[0023] Further, as shown in FIGS. 3 to 6, a plurality of pin portions 8 are provided on the brush portion 3. The plurality of pin portions 8 are erected on both sides of the first heating portion 6 in the short side direction of the brush portion 3 and are arranged at intervals so as to be aligned in the longitudinal direction of the brush portion 3. The pin portion 8 includes a plurality of inner pin portions 9 arranged near the first heating portion 6 and a plurality of outer pin portions 10 arranged outside the inner pin portions 9. In other words, the first heating portion 6 is provided at the center in the longitudinal direction of the brush portion, and two rows of pins (inner pins 9 and outer pins 10) are arranged on both sides of the heating portion, respectively. Among the two rows of pins, the pins closer to the heating portion are the inner pins 9, and the outer pins 10 are arranged next to the inner pins and at a position farther from the heating portion. Taking the heating portion as the center, the inner pins 9 and the outer pins 10 are arranged outward. In this case, as shown in FIG. 3, the inner pin portions 9 and the outer pin portions 10 are alternately arranged so as to be staggered in plan view. The pin portion 8 (inner pin portion 9 and outer pin portion 10) is made of, for example, resin. The pin portion 8 (inner pin portion 9 and outer pin portion 10) can also be said to be a non-heating portion.

[0024] FIG. 4 is a view of the cordless brush iron 1 as seen from the direction A in FIG. 1. Further, FIG. 4 is a view showing the heights (Hi, Ho, Hh) of the respective pins and the second heating portion 7 with respect to C. As shown in FIG. 4, the tip Hi of the inner pin is arranged at a position higher than the tip Ho of the outer pin, and the tip Ho of the outer pin is arranged at a position higher than the tip Hh of the second heating portion 7. That is, it is set so that Hi>Ho>Hh. Also, the length L1 of the first heating portion 6 is smaller than the length L2 of the second heating portion 7. That is, it is set so that L1<L2.

[0025] FIG. 5 is a view of the cordless brush iron 1 as viewed from the direction A in FIG. 1. As shown in FIG. 5, the shape of the brush part 3 is formed by a combination of multiple curved shapes (a curved shape of curvature R2, a curved shape of curvature R3, a curved shape of curvature R4, and a curved shape of curvature R5). The respective curvatures are, for example, R2=3.5 mm, R3=5 mm, R4=7 mm, and R5=3.5 mm. The curved surface part of the first heating part 6 has a curved shape of curvature R1, for example, R1=5.8 mm. This R1 is the curved surface part protruding from the surface of the brush part 3, and the first heating part has a height of L1. The multiple curved shapes can further straighten the hair heated by the first heating part 6 and the second heating part 7.

[0026] FIG. 6 is a view of the cordless brush iron 1 as viewed from the direction A in FIG. 1. Furthermore, FIG. 6 is a cross-sectional view in the short direction of the central portion in the longitudinal direction of the brush unit 3. Note that FIG. 6 shows only parts necessary for explanation. As shown in FIG. 6, the first heating unit 6 has a curved shape. In this case, the heat source unit 11 of the first heating unit 6 has a curved shape that follows the curved shape of the first heating unit 6, and is disposed inside the brush unit 3 so as to be adjacent to the first heating unit 6 (see FIG. 6).

[0027] Next, referring to FIG. 7, the main parts of the handle part 2 will be described. FIG. 7 is a view of the cordless brush iron 1 as viewed from the direction B in FIG. 1. Furthermore, FIG. 7 is an explanatory diagram (bottom view) of the handle part 2 of the cordless brush iron 1. As shown in FIG. 7, the bottom surface of the handle part 2 is provided with a charging port 12, a power switch 13, a first light source 14, and a second light source 15. The first light source 14 and the second light source 15 can be constituted by, for example, an LED. Furthermore, although not shown, a battery is provided in the handle part 2, and the cordless brush iron 1 operates with the energy charged in this battery. The battery can be charged by connecting a USB rechargeable type such as USB-TypeC to the charging port 12. The charging method is not limited to USB-TypeC, and charging is possible using other methods.

[0028] When using the cordless brush iron 1 of this embodiment, first, with the first light source 14 and the second light source 15 turned off, pressing and holding the power switch 13 turns on the first light source 14. At this time, the first heating unit 6 and the second heating unit 7 have not started heating.

[0029] Next, when the power switch 13 is pressed briefly while the first light source 14 is on, the first heating section 6 and the second heating section 7 start heating, and the first light source 14 and the second light source 15 turn on. In this manner, the cordless brush iron 1 is ready for use.

[0030] While the cordless brush iron 1 is being heated, the first light source 14 and the second light source 15 are turned on, and when the power switch 13 is pressed and held down, the heating of the first heating unit 6 and the second heating unit 7 is stopped and the first light source 14 and the second light source 15 are turned off. In this way, the heating of the cordless brush iron 1 is terminated.

[0031] According to the cordless brush iron 1 of this embodiment, the first heating section 6 extending in the longitudinal direction is provided on the surface of the brush section 3, so that even if the cordless brush iron 1 is made compact to a size that can be put in a makeup pouch or the like (similar to the size of other cosmetics), the size of the heating section can be secured to be large. This allows a sufficient amount of heat to be transmitted to the hair, making it easy to style the hair. Furthermore, since the first heating section 6 is provided with a curved portion protruding from the surface of the brush section 3, even with a compact cordless brush iron 1, it is easy to use this curved portion to style the hair (for example, to straighten the bangs or to create beautiful curls in the bangs).

[0032] In addition, in this embodiment, the pin sections 8 are configured in two rows (two rows of inner pin sections 9 and outer pin sections 10), the tips of the inner pins are positioned higher than the tips of the outer pins, and the tips of the outer pins are positioned higher than the tips of the second heating section 7.Therefore, while moving the brush section 3 to style the bangs, etc., the hair (bangs, etc.) is less likely to come off the brush section 3, and sufficient heat can be transmitted to the hair, making it easy to style the hair (bangs, etc.) even with the compact cordless brush iron 1.

[0033] In addition, in this embodiment, the two rows of pin portions 8 (the inner pin portions 9 and the outer pin portions 10) are arranged so that they are staggered when viewed in a plane. This makes it difficult for hair (such as bangs) to come off the brush portion 3 while the brush portion 3 is being moved to style the bangs, etc., making it easy to style hair (such as bangs) even with the compact cordless brush iron 1.

[0034] In addition, in this embodiment, when the cap 5 is attached to the handle 2, the cordless brush iron 1 has an integrated stick-like appearance, so that it does not look out of place when placed in a cosmetic pouch, etc., like other cosmetics. Therefore, the cordless brush iron 1 can be easily carried in a cosmetic pouch, etc., like other cosmetics.

[0035] Furthermore, in this embodiment, the first heating section 6 and the second heating section 7 do not start heating unless the power switch 13 is pressed and held down and then pressed briefly again. In other words, the first heating section 6 and the second heating section 7 do not start heating just by pressing the power switch 13 briefly. This makes it possible to prevent the power switch 13 from being pressed accidentally and the first heating section 6 and the second heating section 7 from starting heating when the cordless brush iron 1 is carried in a cosmetic pouch or the like like other cosmetics.

[0036] Although the embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these, and changes and modifications can be made according to the purpose within the scope of the claims. [Industrial Applicability]

[0037] INDUSTRIAL APPLICABILITY As described above, the cordless brush iron of the present invention has the effect of being suitable for carrying in a cosmetic pouch or the like by women, and is useful as a compact cordless brush iron, etc. [Explanation of symbols]

[0038] 1 Cordless Brush Iron 2 Handle 3 Brush section 4. Main unit 5 Cap part 6 1st heating section 7 Second heating section 8 pin section 9 Inner pin 10 Outer pin part 11 Heat source part 12 Charging port 13 Power Switch 14 1st light source 15 Second light source

Claims

1. In a cordless brush iron having a handle and a brush, The brush portion includes: a first heating section disposed in a central portion of the brush section in a short-side direction so as to extend in a longitudinal direction of the brush section and having a curved surface portion protruding from a surface of the brush section; A plurality of second heating sections are provided on the curved surface of the first heating section and are arranged at intervals in a longitudinal direction of the brush section; a plurality of pin portions provided on both sides of the first heating portion in a short-side direction of the brush portion and arranged at intervals so as to be aligned in a long-side direction of the brush portion; Equipped with The heat source part of the first heating part has a curved shape that follows the curved shape of the first heating part. Cordless brush iron.

2. The pin portion includes a plurality of inner pin portions disposed near the first heating portion and a plurality of outer pin portions disposed outside the inner pin portions, The tip of the inner pin is positioned higher than the tip of the outer pin, A tip of the outer pin is disposed at a position higher than a tip of the second heating unit.

2. The cordless brush iron according to claim 1.

3. The cordless brush iron according to claim 2 , wherein the inner pin portions and the outer pin portions are arranged alternately in a plan view.

4. A cap portion is provided which is detachably attached to the handle portion so as to cover the brush portion, 2. The cordless brush iron according to claim 1, wherein when the cap portion is attached to the handle portion, there is no step between the handle portion and the cap portion, and the handle portion and the cap portion have an integrated stick-like appearance.

5. A power switch, a first light source, and a second light source are provided on the bottom surface of the handle, When the power switch is pressed and held down while the first light source and the second light source are turned off, the first light source is turned on without starting heating of the first heating unit and the second heating unit, When the power switch is pressed briefly while the first light source is turned on, heating of the first heating unit and the second heating unit is started, and the first light source and the second light source are turned on; 2. The cordless brush iron according to claim 1, wherein when the power switch is pressed and held down while the first light source and the second light source are on, heating of the first heating unit and the second heating unit is stopped and the first light source and the second light source are turned off.

Citation Information

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