Attachment for drier and drier

Abstract

To provide an attachment that is hard to give a damage to hair.SOLUTION: According to an aspect of the present invention, an attachment for a drier includes a tip part and a base part. The base part is configured to be connected to the drier. The tip part includes a plurality of projection parts that contact with hair of a user. The plurality of projection parts each form an air outlet for air from the drier. Each air outlet is configured to blow air in a direction forming a predetermined angle with a straight line connecting a center of the tip part and the projection part.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an attachment for a dryer and a dryer. [Background technology]

[0002] Recently, various technologies have been developed. Patent Document 1 discloses a hair dryer attachment that consists of a bowl-shaped front panel and a rear panel, and that the two panels are fixed together with a gap between the rear panel and a peripheral side panel to form a main housing, and that the rear panel of the front panel has a number of protrusions on the entire surface, each with a number of horizontal holes, and the horizontal holes communicate with the gap through spaces within the protrusions, and that the peripheral side panel of the front panel has a number of through holes. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Jikko No. 55-034887 Summary of the Invention [Problem to be solved by the invention]

[0004] Hair dryer attachments have been developed to create beautiful curls, but they can cause uneven temperatures and damage to the hair. In view of the above circumstances, the present invention provides an attachment that is less likely to damage hair. [Means for solving the problem]

[0005] According to one aspect of the present invention, there is provided an attachment for a hair dryer, comprising a tip and a base, the base configured to connect to the hair dryer, the tip having a plurality of protrusions that come into contact with the user's hair, the plurality of protrusions each forming an outlet for airflow from the hair dryer, and each outlet configured to blow air in a direction that forms a predetermined angle with respect to a straight line connecting the center of the tip and the protrusions.

[0006] According to this aspect, it is possible to provide an attachment that is less likely to damage hair. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a perspective view of a dryer 100 according to the present invention. [Figure 2] FIG. 1 is a perspective view of an attachment 1. [Figure 3] FIG. 2 is a diagram showing the attachment 1 as seen from the front. [Figure 4] FIG. 2 is a diagram showing the orientation of an air outlet 201. [Figure 5] FIG. 2 is a diagram showing the attachment 1 as seen from the side. [Figure 6] FIG. 2 is a view showing the attachment 1 as seen in the air blowing direction D1. [Figure 7] FIG. 2 is a partial cross-sectional view of the tip portion 2 and the base portion 3 in the attached state. [Figure 8] FIG. 10 is a block diagram showing an example of the configuration of a function for discharging and collecting electric charges. [Figure 9] FIG. 1 is a diagram showing how easily substances become charged. [Figure 10] FIG. 2 is a view showing an attachment 1a with a tip portion 2a attached. [Figure 11] FIG. 2 is a diagram showing the attachment 1a as seen from the side. [Figure 12] FIG. [Figure 13] 10A and 10B are diagrams illustrating an example of a deformation prevention portion. [Figure 14] FIG. 10 is a diagram showing an example of a deformed tip portion. [Figure 15] FIG. 10 is a diagram showing another example of the attachment / detachment means. [Figure 16] 10 is an enlarged view showing a magnetic member 43c and a magnet 42c. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0008] [Embodiment] The following describes embodiments with reference to the drawings. Various features shown in the following embodiments can be combined with each other.

[0009] FIG. 1 is a perspective view of a dryer 100 according to the present invention. The shape of the dryer 100 according to this embodiment has an appearance similar to that of a typical handheld dryer. Users can use the familiar shape to dry their hair, and it can be stored in a conventional location. Note that the shape of the dryer is not limited to this embodiment, and can be changed as desired within the scope of the claims.

[0010] The dryer 100 is configured to include a main body 101 and a handle 102. The main body 101 is the part that corresponds to the main body and houses the main functions (such as the air blowing function) of the dryer 100. The main body 101 blows air in an air blowing direction D1 from the rear to the front. The handle 102 extends downward from the underside of the main body 101. The handle 102 is configured to include a switch 103 that operates the functions of the dryer 100 and a hand electrode 104 that is used to recover electric charge, as described below. The dryer 100 is powered by a power cord connected to the lower end of the handle 102. It is to be noted that the dryer 100 may be equipped with an internal battery to make it a cordless dryer.

[0011] Attachment 1 is an attachment for a dryer, and is detachably attached to the tip (end on the airflow direction D1 side) of main body 101. Attachment 1 will be described below with reference to FIG. 2 and other figures.

[0012] FIG. 2 is a perspective view of the attachment 1. FIG. 3 is a diagram showing the attachment 1 as seen from the front. The attachment 1 is configured to include a tip 2 and a base 3. The base 3 is configured to connect to the main body 101 of the dryer 100. The tip 2 is configured to connect to the base 3. The base 3 is detachable from the main body 101 of the dryer 100, and the tip 2 is detachable from the base 3. A detachment button 41 in the figure is used to remove the tip 2 from the base 3. The attachment and detachment of the tip 2 and base 3 will be explained later.

[0013] The tip portion 2 and the base portion 3, when connected to each other, form an internal space. The base portion 3 has an intake port 31. Air sent out from the main body portion 101 of the dryer 100 passes through the intake port 31 and is drawn into the internal space between the tip portion 2 and the base portion 3.

[0014] The tip portion 2 includes a curved plate 24 and multiple protrusions 20. The curved plate 24 is circular when viewed from the front and is a plate-like portion having a concave curved surface 25. The curved plate 24 is provided with multiple protrusions 20 and multiple air outlets 23. The multiple protrusions 20 protrude from the curved surface 25 and come into contact with the user's hair when the dryer 100 is in use. The multiple protrusions 20 each form an air outlet 201 for air blown from the main body 101 of the dryer 100. The multiple air outlets 23 are holes provided in the curved plate 24 and, like the air outlets 201, are outlets through which air blown from the main body 101 blows out.

[0015] The multiple protrusions 20 include first protrusions 21-1, 21-2, 21-3, 21-4, 21-5, and 21-6 (referred to as "first protrusions 21" when not distinguishing between them) and second protrusions 22-1, 22-2, 22-3, 22-4, 22-5, and 22-6 (referred to as "second protrusions 22" when not distinguishing between them). The multiple first protrusions 21 are an example of a first protrusion group arranged in a ring shape around the center C1 of the tip portion 2. The multiple second protrusions 22 are an example of a second protrusion group arranged in a ring shape around the first protrusion group.

[0016] 4 is a diagram showing the orientation of the air outlet 201. The first protrusions 21-1, 21-2, 21-3, 21-4, 21-5, and 21-6 have first air outlets 211-1, 211-2, 211-3, 211-4, 211-5, and 211-6 (referred to as "first air outlets 211" when not distinguishing between them). The second protrusions 22-1, 22-2, 22-3, 22-4, 22-5, and 22-6 have second air outlets 221-1, 221-2, 221-3, 221-4, 221-5, and 221-6 (referred to as "second air outlets 221" when not distinguishing between them). The first air outlet 211 and the second air outlet 221 are included in the air outlet 201.

[0017] In Figure 4, the arrows indicate the direction of the air blown out from each air outlet 201. None of these air directions are directed toward the center C1 of the tip portion 2. In other words, the multiple protrusions 20 are configured so that each air outlet 201 blows air in a direction that forms a predetermined angle with respect to the line connecting the center C1 of the tip portion 2 and the protrusion 20. According to this embodiment, compared to when the air outlet 201 is directed toward the center C1, the air is prevented from concentrating on the center C1 of the tip portion 2, which makes it less likely to damage the hair and allows for more efficient drying.

[0018] As described above, the multiple first protrusions 21 are arranged in a ring shape surrounding the center C1 of the tip portion 2. Specifically, each first protrusion 21 is arranged so as to be located at a vertex of a regular hexagon centered on the center C1. The first air outlet 211 of each of the multiple first protrusions 21 is configured to face the Nth (N is a natural number) adjacent first protrusion 21 in a first direction along the ring shape. In the example of FIG. 4, each first air outlet 211 faces the second adjacent first protrusion 21 in a counterclockwise direction D2 (counterclockwise) when viewed from the front. As a result, in the example of FIG. 4, each first protrusion 21 is configured so that the angle θ1 formed between the line connecting the center C1 of the tip portion 2 and the first protrusion 21 and the air outlet direction of the first air outlet 211 is 30°.

[0019] For example, the first air outlet 211-1 of the first protrusion 21-1 faces the first protrusion 21-3, which is two protrusions away in the counterclockwise direction D2. Similarly, the first air outlet 211-2 of the first protrusion 21-2 faces the first protrusion 21-4, which is two protrusions away in the counterclockwise direction D2. The same is true for the first air outlets 211 of the other first protrusions 21. When multiple first air outlets 211 facing counterclockwise D2 and clockwise D3 are mixed, the air blowing out from the first air outlet 211 facing clockwise D3 interferes with the air flow in the counterclockwise direction D2, causing air stagnation and making it easier for heat to accumulate in the areas where the air stagnates. In contrast, in a configuration in which the orientations of the first air outlets 211 are aligned in a first direction (counterclockwise D2 in the example of Figure 4), the air blown out from the first air outlets 211 creates an air flow that rotates in the first direction, thereby reducing the uneven distribution of heat caused by the air blown out from each first air outlet 211.

[0020] As described above, the multiple second protrusions 22 are arranged in a ring shape surrounding the first protrusion group. Specifically, each second protrusion 22 is arranged so as to be located at the vertices of a regular hexagon larger than the regular hexagon having the first protrusion 21 as its vertex. The second air outlet 221 of each of the multiple second protrusions 22 is configured to face the second protrusion 22 that is M (M is a natural number) adjacent in a second direction along the ring shape. In the example of FIG. 4, each second air outlet 221 faces the second protrusion 22 that is adjacent in a leftward direction D2 (counterclockwise) when viewed from the front. As a result, in the example of FIG. 4, each second protrusion 22 is configured so that the angle θ2 formed between the line connecting the center C1 of the tip portion 2 and the second protrusion 22 and the air outlet direction of the second air outlet 221 is 60°. Note that, although the angle θ1 is 30° and the angle θ2 is 60° in the example of FIG. 4, this is not limiting. The angles θ1 and θ2 may both be any angle greater than 0° and less than 180°. Furthermore, the angles θ1 and θ2 do not need to be the same for all air outlets; some air outlets may have angles θ1 or θ2 that are different from the other air outlets, or each air outlet may have a different angle.

[0021] For example, the second air outlet 221-1 of the second protrusion 22-1 faces the adjacent second protrusion 22-2 in the counterclockwise direction D2. Similarly, the second air outlet 221-2 of the second protrusion 22-2 faces the adjacent second protrusion 22-3 in the counterclockwise direction D2. The same applies to the second air outlets 221 of the other second protrusions 22. According to this embodiment, the air blown out from the second air outlet 221 creates an air flow that rotates in the second direction (counterclockwise direction D2 in the example of FIG. 4), and together with the air flow created by the first air outlet 211, two layers of air flow rotate around the center C1 of the tip portion 2 are formed. This further reduces uneven distribution of heat due to the air blown in comparison to a case where multiple second protrusions 22 are not provided.

[0022] The orientations of the first air outlet 211 and the second air outlet 221 shown in FIG. 4 are merely examples and are not limiting. For example, the first air outlet 211 may face the adjacent first protrusion 21, and the second air outlet 221 may face the adjacent second protrusion 22. However, in the example of FIG. 4, if both the first air outlet 211 and the second air outlet 221 face the adjacent third protrusion 20, they would face the center C1, and therefore cannot be configured to face the adjacent third protrusion 20. Furthermore, the number of first protrusions 21 and second protrusions 22 is not limited to the number (six) shown in FIG. 4 and other figures, and may be five or less, or seven or more. As long as three or more first protrusions 21 and second protrusions 22 are provided, a rotating air flow can be created.

[0023] Furthermore, the plurality of first protrusions 21 and the plurality of second protrusions 22 may be configured so that the second direction is opposite to the first direction. According to this configuration, when the tip is moved, the air blown in the first direction and the air blown in the second direction alternately hit the hair, which makes it possible to prevent heat from concentrating on one side of the hair compared to when the first direction and the second direction are the same.

[0024] FIG. 5 is a diagram showing the attachment 1 as seen from the side. When the attachment 1 is viewed from the side, as shown in FIG. 5, the first protrusions 21 are provided at a more recessed position on the curved plate 24 than the second protrusions 22, so the tips of the first protrusions 21 are recessed compared to the tips of the second protrusions 22. This allows the tips of the protrusions 20 to contact the curved surface of the scalp more evenly than when the tips of the first protrusions 21 are not recessed. Each protrusion 20 is made of rubber or resin and is flexible. It may be made more flexible to provide a soft feel, or less flexible to make it easier to apply force during massage.

[0025] Next, the configuration for attaching and detaching the tip portion 2 and the base portion 3 will be described. 6 is a diagram showing the attachment 1 as seen in the airflow direction D1. The base 3 has an outer edge shaped like an equilateral triangle with the corners cut off and the sides rounded. Of the corner regions 32-1, 32-2, and 32-3 near the corners of the triangle on the base 3, a detachment button 41 is provided on the corner region 32-1. The detachment button 41 is an operating part that is operated when detaching the tip portion 2 from the base 3.

[0026] FIG. 7 is a partial cross-sectional view of the tip portion 2 and base portion 3 in the attached state. FIG. 7 shows a portion of the internal space surrounded by the tip portion 2 and base portion 3. Magnets 42-1, 42-2, and 42-3 (referred to as "magnets 42" when not distinguishing between them) are provided in corner regions 32-1, 32-2, and 32-3 of the base portion 3, respectively. Metal screws 43-1, 43-2, and 43-3 (referred to as "metal screws 43" when not distinguishing between them) are provided at positions corresponding to the magnets 42 of the tip portion 2, for example. Note that the positions of the magnets 42-3 and the metal screws 43-2 and 43-3 are indicated by arrows and are not shown in the illustration.

[0027] Each metal screw 43 is attracted to each magnet 42, thereby fixing the tip part 2 to the base part 3. When the detachment button 41 is pressed, a gap is created between each metal screw 43 and each magnet 42, weakening the attractive force, making it easier to remove the tip part 2 than when the magnets 42 and metal screws 43 are in close contact with each other. The detachment button 41, magnets 42, and metal screws 43 constitute the detachment part 4.

[0028] In this way, the attachment 1 further has detachment means. The detachment portion 4 is one example of the detachment means. The detachment means enables the base portion 3 and the tip portion 2 to be detached, and is configured to be located on the periphery of the attachment 1. In the example of Figure 7 etc., the detachment portion 4 is located in corner regions 32-1, 32-2, and 32-3 on the peripheral edge of the attachment 1. According to this embodiment, the detachment means (particularly the detachment button 41 that is operated when detaching the tip portion 2 from the base portion 3) is located on the periphery of the attachment 1, so that the detachment means can be more easily reached by fingers when detaching compared to when the detachment means is not located on the periphery, thereby improving operability.

[0029] Furthermore, the attachment 1 is designed to satisfy the following equation 1, where v1 is the effective wind speed of the air flowing through the tip 2 inside the attachment 1, v2 is the wind speed when it is blown out from the outlets (outlet 201 and outlet 23), ρ is the fluid density, S is the area of ​​the tip 2 that receives the air, and F is the holding force of the attachment / detachment means.

[0030]

number

[0031] A specific example of the formula 1 will be explained. For example, when the cross-sectional area A1 of the intake port 31 is 995 mm 2 The total cross-sectional area A2 of the plurality of air outlets 201 and the plurality of air outlets 23 = 857 mm 2 , the area of ​​the part of the front part 2 that receives the airflow S = 0.00676 m 2, the air volume Q0 inside the main body 101 of the dryer 100 = the air volume Q1 in the internal space of the tip 2 and the base 3 = the air volume Q2 blown out from the plurality of air outlets 201 and the plurality of air outlets 23 = 0.942 m 3 / min. In this specific example, to simplify the calculation, the cross-sectional area of ​​the flow path inside the attachment 1 is assumed to be uniform at area S. In this case, the wind speeds v1 and v2 are calculated using the following equations 2 and 3.

[0032]

number

number

[0033] The air pressure P1 in the internal space of the tip 2 is atmospheric pressure P2 = 0 Pa, and the air density ρ at a temperature of 30°C is ρ = 1.165 kg / m 3 If the height z1 = z2 = 0 cm to the cross section through which the air flows with wind speeds v1 and v2, the calculations are as shown in the following equations 4 and 5.

[0034]

number

number

[0035] From the above, the holding force F required for the attachment / detachment means is expressed by the air pressure P1 acting on the tip portion 2 as in the following equation 6.

[0036]

number

[0037] The holding force F of the detaching means is the resultant force of F2-1 generated by the attraction between magnet 42-1 and metal screw 43-1, F2-2 generated by the attraction between magnet 42-2 and metal screw 43-2, and F2-3 generated by the attraction between magnet 42-3 and metal screw 43-3, as shown in Figure 7. For example, in the above specific example, by setting the holding force F of the detaching means to F = 0.35 (N) from Equation 6, it is possible to prevent tip portion 2 from coming off due to wind pressure during hair treatment, and to remove it with minimal force.

[0038] The tip portion 2 and the base portion 3 form at least a first space 341 and a second space 342. The base portion 3 has an annular inner wall 33. In the space between the tip portion 2 and the base portion 3, the first space 341 is formed inside the inner wall 33, and three second spaces 342, each including one of the corner regions 32, are formed outside the inner wall 33. The first space 341 is connected to the intake port 31. A detachable portion 4, which is an attachment / detachment means, is arranged in the second space 342.

[0039] The airflow that flows into the first space 341 from the intake port 31 immediately flows out to the outside space through the outlet 201 of the protrusion 20 and the outlet 23 of the curved surface 25. Therefore, the airflow does not stay in the first space 341 for a long time and hardly cools down. On the other hand, since the second space 342 does not have an outlet, the airflow that flows in through the gap between the inner wall 33 and the tip 2 stays in the second space 342 for a long time, during which time its temperature drops due to heat exchange with the outside air via the tip 2 and the base 3. Thus, the tip 2 and the base 3 are configured so that the airflow that flows into the second space 342 has a lower temperature than the airflow that flows into the first space 341. This configuration can suppress thermal expansion and thermal degradation of the detachment means compared to when the detachment unit 4 is disposed in the first space 341.

[0040] At least a portion of the tip 2 is formed of a charged body. An example of the charged body is a conductive resin formed by compounding a conductive carbon material with a resin. Examples of the resin include ABS resin, PP resin, and PA / ABS resin. The main body 101 of the dryer 100 shown in FIG. 1 includes an ionizer, which is an ion supply unit, and supplies positive or negative ions by including them in the airflow. The following describes the release of electric charge by the ionizer and the collection of electric charge by the hand electrode 104.

[0041] Fig. 8 is a block diagram showing an example of the configuration of the function for discharging and collecting electric charges. As shown in the figure, ionizer 5, which is a charge discharging means, is equipped with positive ion generating unit 51 that generates positive ions and negative ion generating unit 52 that generates negative ions, and is configured to be able to generate positive ions and negative ions simultaneously or alternately. The charge collecting means includes a hand electrode 104 that comes into contact with the user. Potential control unit 55, which is a potential control means that controls the potential of hand electrode 104, is connected to hand electrode 104.

[0042] The potential control unit 55 can control the potential of the hand electrode 104, and can apply a ground potential to the hand electrode 104, for example. This allows the hand electrode 104 to collect negative charges when many negative ions accumulate in the hair, and collect positive charges when many positive ions accumulate, thereby quickly eliminating static electricity from the hair and also providing secondary benefits of the negative ions, such as increased moisture and improved skin quality. It is desirable that the potential control unit 55 be configured to be insulated from the commercial power supply.

[0043] The ionizer 5 also includes a charge state detection unit 53 and a charge release control unit 54. The charge state detection unit 53 is configured to be able to detect the charge state of the user. The charge release control unit 54 controls the amount of at least one of the positive ions and negative ions released by the ionizer 5 so that the charge state of the user is maintained at a predetermined state. The ionizer 5 may include only either the positive ion generation unit 51 or the negative ion generation unit 52. In this way, the tip unit 2 is configured to blow out positive ions and / or negative ions from the outlet 201 and the outlet 23 using the ions released from the ionizer 5.

[0044] FIG. 9 is a diagram showing how easily materials are charged. As shown in FIG. 9, hair tends to be positively charged, while resins such as PP (polypropylene) resin that make up the tip portion 2 tend to be negatively charged. When the tip portion 2 blows out negative ions, the attachment 1 can neutralize hair that tends to be positively charged, and when the tip portion 2 blows out positive ions, it can neutralize resin that tends to be negatively charged. In either case, damage to hair caused by abrasion with the tip portion 2 can be reduced compared to when ions are not supplied.

[0045] Furthermore, not only the tip portion 2 shown in FIG. 2 etc., but also tip portions of different shapes can be attached to the base portion 3. Fig. 10 is a diagram showing the attachment 1a with the tip portion 2a attached. Fig. 11 is a diagram showing the attachment 1a seen from the side. The tip portion 2a has a first protrusion 21a, a second protrusion 22a, an air outlet 23a, and a curved plate 24a.

[0046] The air outlet 23a and the curved plate 24a have the same configuration as the air outlet 23 and the curved plate 24 shown in Fig. 2 etc. On the other hand, the first protrusion 21a and the second protrusion 22a have a shorter length in the airflow direction D1 than the first protrusion 21 and the second protrusion 22 shown in Fig. 2 etc. The curved plate 24a is provided with a metal screw 43 shown in Fig. 7, and like the tip portion 2, the tip portion 2a can also be attached to and detached from the base portion 3 by the detachable portion 4.

[0047] Thus, the tip section 2 has at least a first tip section (tip section 2) and a second tip section (tip section 2a). Either the first tip section or the second tip section is attached to or detached from the base section 3 on a one-to-one basis, and is configured to be freely replaceable. In this manner, the tip section is replaceable, making it possible to realize a dryer that suits a variety of hair lengths or hair types. Note that the tip section variations are not limited to those described above, and, for example, tip sections with different lengths of the protrusions 20, or with different numbers of protrusions 20, orientations of the air outlets 201, or numbers of annular protrusion groups may be configured to be freely replaceable.

[0048] The base 3 also has an intake port 31 that receives air blown from the main body 101 of the dryer 100. The tip 2 also has outlets (the outlet 201 of the protrusion 20 and the outlet 23 of the curved surface 25) that blow out the air. In the tip 2, (total area of ​​the outlets)≦(total area of ​​the inlets). According to Bernoulli's theorem, this configuration allows the pressure at the outlets to be reduced and the pressure at the inlets to be increased. Therefore, even if there are multiple outlets, there is no backflow of air from the outlets to the inlets, and the pressure at the outlets can be kept constant. As a result, uneven hair treatment can be suppressed compared to when the total area of ​​the outlets is larger than the total area of ​​the inlets.

[0049] Furthermore, by providing the dryer 100 with the attachment 1, the tip can be replaced, making it possible to provide a dryer that suits a variety of hair lengths or hair types.

[0050] The dryer 100 further includes a throttle portion provided in the air flow path. 12 is a diagram showing the throttle portion 105. The throttle portion 105 is provided in the flow path inside the main body portion 101, and reduces the cross-sectional area of ​​the flow path compared to when the throttle portion 105 is not present. However, the throttle portion 105 is configured so that (total area of ​​the air outlets of the attachment 1)≦(total area of ​​the throttle portion 105).

[0051] According to this embodiment, even if the cross-sectional area of ​​the dryer blades or motor vanes cannot be made large, the pressure at the outlet of the attachment 1 can be lowered, so there is no backflow of air and air can be blown out efficiently.

[0052] Furthermore, the tip portion 2 may be provided with a deformation suppression portion in addition to the curved plate 24 provided with the multiple protrusions 20. The deformation suppression portion is provided on the curved plate 24 and is configured to suppress deformation of the curved plate 24 compared to when the deformation suppression portion is not provided.

[0053] FIG. 13 is a diagram showing an example of a deformation prevention part. The attachment 1b shown in FIG. 13 includes a tip 2b and a base 3. FIG. 13 is a partial cross-sectional view in which a portion of the base 3 has been cut away, allowing the internal structure sandwiched between the tip 2b and the base 3 to be seen. The tip 2b includes a curved plate 24b, a deformation prevention part 27, and an annular inner wall 28. The deformation prevention part 27 is a rib provided on the back surface 26 of the curved plate 24b. More specifically, the deformation prevention part 27 includes a central rib 271 and a plurality of (specifically, six) radial ribs 272. The central rib 271 is a cylindrical rib provided in the center of the back surface 26. The radial ribs 272 are plate-like ribs extending radially from the central rib 271 to the inner wall 28.

[0054] The annular inner wall 28 is provided in a position facing the annular inner wall 33 of the base 3 shown in FIG. 7 in an attached state in which the tip portion 2b is attached to the base 3. The inner wall 28, together with the inner wall 33, serves as a partition that separates the first space 341 from the three second spaces 342. The deformation suppression part 27 is provided in an inner region 261 of the back surface 26, which is located more inward than the inner wall 28. The inner region 261 is provided with holes connected to the multiple protrusions 20 and multiple air outlets 23. The holes connected to the protrusions 20 are an example of air outlets from which air is blown out.

[0055] The deformation suppression unit 27 is arranged so as not to block these air outlets. If the deformation suppression unit 27 were arranged to block the air outlets, the amount of air blown out from the air outlets would decrease, and hair drying performance would be reduced. However, according to an embodiment such as the example in FIG. 13, the amount of air blown out from the air outlets is not reduced, and hair drying performance can be maintained. Note that it is preferable that the deformation suppression unit does not block the air outlets, but it is also possible to arrange the deformation suppression unit so that it includes a blocking portion. In either case, it is preferable that at the tip, (total area of ​​the air outlets (excluding any portion blocked by the deformation suppression unit)) ≦ (total area of ​​the intake port 31) and (total area of ​​the air outlets (same as above)) ≦ (total area of ​​the throttle unit 105).

[0056] If the tip is made of a flexible material such as rubber or resin to suit soft hair, the tip becomes more likely to deform as the air pressure increases to improve drying performance. Figure 14 shows an example of a deformed tip part. Figure 14(a) shows tip part 2 provided to attachment 1. When wind pressure is applied to tip part 2 by air blowing in air blowing direction D1, tip part 2 deforms so that the center of curved surface 25 bulges in air blowing direction D1, as shown in Figure 14(b).

[0057] In order to suppress such deformation, radial ribs 272 are provided that have a size strong enough to prevent deformation of tip portion 2 at atmospheric pressure P1 (49.7 Pascals) in the internal space of tip portion 2, as shown in the above-mentioned equation 5. In this case, the size of radial ribs 272 is, for example, 3.6 mm in height and 0.8 mm in width, or larger. By making deformation suppression portion 27 of such a size, tip portion 2 does not deform when attachment 1 is used, and the desired results can be obtained.

[0058] As shown in FIG. 14(b), when the tip portion 2 is deformed, the spacing between the tips of the protrusions 20 (particularly the first protrusions 21) increases, causing the protrusions 20 to stimulate more unevenly on the scalp (the central portion is not stimulated and is concentrated toward the second protrusions 22), and the air blown out from the air outlets 201 of the protrusions 20 also hits the hair more unevenly (the air blown out from the central portion decreases and the air blown out around the second protrusions 22 increases). On the other hand, if the material of the tip portion 2 is made harder to prevent deformation, the harder the material, the more likely it is to damage the hair. Furthermore, if the area of ​​the air outlets 201 and 23 is increased to reduce the pressure applied to the tip portion 2 to prevent deformation, the drying performance will decrease.

[0059] Compared to these cases, when deformation suppression part 27 is provided, the material of protrusions 20 can be softened to reduce damage to the hair, and deformation of tip part 2 can be suppressed to reduce unevenness in the areas where protrusions 20 stimulate the hair. Furthermore, when deformation suppression part 27 is provided, deformation of tip part 2 can be suppressed to stabilize the direction of airflow from protrusions 20, and as a result, unevenness in the areas where air hits the hair can be reduced.

[0060] The deformation suppression portion 27 is not limited to that shown in FIG. 13 . For example, the central rib 271 may be omitted, and the number of radial ribs 272 may be more or less than six. Furthermore, concentric ribs or mesh-like ribs may be provided in addition to radial ribs. The inner wall 28 may also be part of the deformation suppression portion 27. Instead of ribs, the deformation suppression portion 27 may be formed by applying a coating containing a hardener, or by using ribs in combination with the coating. The deformation suppression portion 27 may be provided on the front surface (curved surface 25) instead of the back surface 26, or on both surfaces. In either case, it is desirable to provide the deformation suppression portion evenly throughout the inner region 261 of the back surface 26 (or the corresponding region on the front surface) so that any part of the tip portion 2 has enough strength to withstand deformation due to the air pressure P1 expressed by Equation 5.

[0061] The above-described detachable unit 4 (an example of the attachment / detachment means) includes a magnet 42 and a metal screw 43. The metal screw 43 is an example of a magnetic member made of a ferromagnetic material that is attracted to the magnet 42. The magnetic member included in the attachment / detachment means may have a shape other than a screw. Another example of the magnetic member and details of a method for holding the magnet will be described below with reference to FIG. 15.

[0062] Fig. 15 is a diagram showing another example of the attachment / detachment means. The attachment 1c shown in Fig. 15 includes a tip portion 2c and a base portion 3c. The tip portion 2c includes a magnetic member 43c and a magnetic member holder 46c. The magnetic member 43c is a cylindrical member with both ends formed into a disk shape like a rivet head, and is made of a ferromagnetic material. The magnetic member holder 46c forms a space shaped to accommodate and hold the magnetic member 43c, and holds the magnetic member 43c. The magnetic member 43c is held by the magnetic member holder 46c with one end exposed.

[0063] The base 3c includes a magnet 42c, a magnet insertion portion 44c, and a fall prevention portion 45c. The magnet 42c is cylindrical. The magnet insertion portion 44c forms an insertion space 47c into which the magnet 42c can be inserted in the insertion direction D4, and holds the magnet 42c inserted in the insertion space 47c. The fall prevention portion 45c is a protrusion provided at the back of the insertion space 47c, and serves to prevent the magnet 42c inserted into the insertion space 47c from going further than the fall prevention portion 45c.

[0064] More specifically, when the magnet 42c is inserted into the insertion space 47c to a position where it contacts the anti-fall portion 45c, a thread rib (a thread-like member made of metal, resin, or the like) is press-fit into the gap between the magnet 42c and the magnet insertion portion 44c, thereby firmly holding the magnet 42c in the magnet insertion portion 44c. The end of the magnet 42c on the insertion direction D4 side contacts the anti-fall portion 45c, but the remaining portion is held exposed. The exposed portion of the magnet 42c and the exposed portion of the magnetic member 43c are attracted to each other and come into close contact, as shown in FIG. 15, generating the holding force F (resultant force of the attractive forces of the three magnets 42c = holding force F) described in FIG. 7.

[0065] As described above, the attachment / detachment means includes a magnetic member and a magnet. While the magnetic member is held in the tip and the magnet in the base in the above examples, the magnet may be held in the tip and the magnetic member in the base. In other words, the magnetic member may be held by a first holder provided in either the base or the tip, and the magnet may be held by a second holder provided in the other of the base or the tip. In the example of FIG. 15, the magnetic member holder 46c is an example of a first holder, and the magnet insertion portion 44c is an example of a second holder. The magnetic member may be a magnet, in which case it may be provided with a polarity that attracts both magnets.

[0066] These first and second holding portions are positioned to face each other in an attached state in which the tip portion is attached to the base portion. In the example of Figure 15 showing the attached state of the tip portion 2c and the base portion 3c, the magnetic member holding portion 46c and the magnet insertion portion 44c are also positioned to face each other. The magnet insertion portion 44c, which is an example of a second holding portion, forms an insertion space 47c into which the magnet 42c can be inserted. In the attached state, the magnet 42c is inserted and held in the insertion space 47c with the direction toward the magnetic member holding portion 46c, which is an example of a first holding portion, as the insertion direction D4.

[0067] The magnet insertion portion 44c, which is an example of a second holder, includes a fall prevention portion 45c at the back in the insertion direction D4 that prevents the magnet 42c from falling off. When the dryer 100 is in use, forces may be applied to the detachable portion 4c in a direction that moves the tip portion 2c away from the base portion 3c, such as gravity acting on the tip portion 2c or a pulling force caused by hair tangled in the tip portion 2c while the dryer 100 is in use. When the magnet 42c is attached, the force acting on the magnet 42c pulls it in the insertion direction D4, but the fall prevention portion 45c prevents movement in the insertion direction D4, preventing the magnet 42c from falling off.

[0068] Although the magnet 42c is inserted into the insertion space 47c in the insertion direction D4, if the fall-off prevention portion 45c is deformable, it is possible to deform the fall-off prevention portion 45c and insert the magnet 42c from the opposite side of the insertion direction D4. However, in this case, there is a risk that the fall-off prevention portion 45c may be damaged when deformed, or that the force applied to the magnet 42c in the attached state may deform the fall-off prevention portion 45c, causing the magnet 42c to fall out. By inserting the magnet 42c in the insertion direction D4, the strength of the fall-off prevention portion 45c can be increased, reducing these risks.

[0069] In the example of FIG. 15, the magnetic member 43c and the magnet 42c are arranged so that their central axes are misaligned when they are attached. 16 is an enlarged view of the magnetic member 43c and the magnet 42c. The magnetic member 43c is a rotating body centered on a central axis C43c. The magnet 42c is a rotating body centered on a central axis C42c. The central axes C43c and C42c both extend in the insertion direction D4, but the central axis C42c does not lie on an extension of the central axis C43c, and the central axis C43c does not lie on an extension of the central axis C42c.

[0070] The head portion of the magnetic member 43c and the cylindrical magnet 42c have roughly the same diameter in a cross section perpendicular to their respective central axes, but because the central axes C43c and C42c are misaligned, a region R42c that is not in close contact with the magnetic member 43c is created on the bottom surface S42c at the rear side of the magnet 42c in the insertion direction D4. The fall-off prevention portion 45c comes into contact with this region R42c, thereby preventing the magnet 42c, which is attracted by the magnetic member 43c, from falling off in the insertion direction D4, even when the magnetic member 43c and the magnet 42c are attracted to each other and in close contact.

[0071] The cross-sectional diameters of the magnetic member and the magnet do not necessarily have to be the same, but whether the cross-sectional diameter of the magnet is larger or smaller than that of the magnetic member, by shifting their central axes, it is easier to ensure space for the anti-fall-out part compared to when the central axes are aligned. As a result, the size of the anti-fall-out part can be increased, making it less likely to be damaged and reducing the risk of the magnet falling out due to damage.

[0072] Furthermore, the shape of the magnetic member and magnet is not limited to a rotating body, and may be, for example, a shape including a regular polygonal prism (e.g., a hexagonal prism). The central axis of a regular polygonal prism is an axis connecting the center points of a cross section parallel to the bottom surface (points equidistant from each vertex of the regular polygon formed by the cross section). In other words, the central axes of the magnetic member and magnet are an axis that includes the center of a cross section perpendicular to the insertion direction D4 in the attached state and is aligned with the insertion direction D4. By arranging the magnetic member and magnet so that their central axes are offset, it is possible to easily secure space for providing a fall-off prevention part, as in the example of FIG. 16.

[0073] The protrusions 20 may be configured to stimulate the hair or scalp with electricity, vibration, liquid or gas spray, light, or electromagnetic waves. Therefore, the attachment 1 may be configured to have an internal substrate, light source, or vibration mechanism for providing these stimuli. According to this embodiment, various stimuli can be applied to the hair or scalp while drying the hair.

[0074] The attachment 1 and the main body 101 of the dryer 100 may have information transmission means. For example, when the attachment 1 is attached to the main body 101, information indicating that the attachment 1 has been attached is transmitted to the main body 101. In this case, the dryer 100 may be configured to change its operating state depending on whether the attachment 1 is attached or not. Examples of the changeable operating state include the air volume, the air temperature, and the amount of ions emitted. For example, if a switch is used to switch between an operating state suitable for when the attachment 1 is not attached and an operating state suitable for when the attachment 1 is attached, it is time-consuming to switch the switch, and the user may forget to switch the switch. Therefore, for example, by automatically switching the operating state when the attachment 1 is attached or detached, the user can continue to use the dryer 100 in an operating state suitable for the current situation without the hassle of switching.

[0075] The attachment 1 is not limited to being made of resin or silicone rubber, but may be configured to include ceramic containing metal or glass in part. This configuration allows for greater freedom in designing the strength and texture of the attachment 1 than when it is made of a single material.

[0076] In the above example, the area and orientation of the air outlets 201 (first air outlet 211 and second air outlet 221) at the tips of the protrusions 20 are fixed. However, this is not limiting and the configuration may include means for allowing the user to freely change the area and orientation. For example, since the protrusions 20 have a cylindrical shape on the curved panel 24 side relative to the air outlet 201, the orientation of the air outlet 201 can be changed by making the protrusions 20 rotatable around the axis of the cylinder. According to this aspect, for example, the user can switch between a state in which the rotation directions of the air from the first protrusion group and the second protrusion group are aligned to strengthen the rotating airflow, and a state in which the air is blown in the opposite direction to reduce unevenness in the hair that is hit by the air. Furthermore, the area of ​​the air outlet 201 can be changed by providing an opening / closing member housed along the inner wall of the protrusions 20 to the air outlet 201. According to this aspect, the balance between the air blown from the air outlet 201 and the air blown from the air outlet 23 provided on the curved panel 24 can be changed according to the user's preference.

[0077] In the above example, the explanation was given on the assumption that the cross-sectional area of ​​the flow path inside the attachment 1 is uniform, but this is not limited to this. The flow path inside the attachment 1 may be tapered, or a guide may be provided to limit the airflow direction. In this way, if the cross-sectional area does not need to be uniform, the degree of freedom in the shape of the attachment 1 can be increased compared to when the cross-sectional area is uniform.

[0078] The total cross-sectional area of ​​the air outlet 201 (the first air outlet 211 and the second air outlet 221) and the air outlet 23 provided in the curved panel 24 is 100 mm 2 More than 1000mm 2The range can be: 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350, 360, 370, 380, 390, 400, 410, 420, 430, 440, 450, 460, 470, 480, 490, 500, 510, 520, 530, 540 ,550,560,570,580,590,600,610,620,630,640,650,660,670,680,690,700,710,720,730,740,750,760,770, 780,790,800,810,820,830,840,850,860,870,880,890,900,910,920,930,940,950,960,970,980,990,1000mm 2 It may be in the range between any two of the above.

[0079] Furthermore, the outlet of the air outlet 23 is formed on the curved surface 25 having a recessed shape, but it may be formed on a curved surface having a protruding shape, or on a flat surface.

[0080] [others] Furthermore, it may be provided in the following aspects.

[0081] (1) An attachment for a hair dryer, comprising a tip and a base, the base configured to connect to the hair dryer, the tip having a plurality of protrusions that come into contact with the user's hair, the plurality of protrusions each forming an outlet for airflow from the hair dryer, and each of the outlets configured to blow the air in a direction that forms a predetermined angle with respect to a straight line connecting the center of the tip and the protrusions.

[0082] According to this aspect, it is possible to prevent the air from concentrating at the center of the tip, thereby making it less likely to damage the hair and allowing for efficient drying.

[0083] (2) In the attachment described in (1) above, the plurality of protrusions include a first group of protrusions arranged in a ring shape around the center of the tip, and the outlet of each of the first group of protrusions is configured to face the Nth (N is a natural number) adjacent protrusion in a first direction along the ring shape.

[0084] According to this embodiment, the air blown out from the outlet creates a rotating air flow in the first direction, which reduces uneven distribution of heat due to the air blown. In particular, when the tip of the protrusion is used close to the scalp, the air flow is not impeded even near the scalp where the air is difficult to reach, and there is no concentration of heat, so the desired drying condition can be achieved uniformly in a short time and with a comfortable feel.

[0085] (3) In the attachment described in (2) above, the plurality of protrusions include a second group of protrusions arranged in a ring shape surrounding the first group of protrusions, and each of the air outlets of the second group of protrusions is configured to face the protrusion that is M (M is a natural number) adjacent in a second direction along the ring shape.

[0086] According to this embodiment, the air flow that rotates around the center of the tip portion is in two layers, which further reduces uneven distribution of heat due to the airflow.

[0087] (4) In the attachment described in (3) above, the first group of protrusions and the second group of protrusions are configured so that the second direction is opposite to the first direction.

[0088] According to this aspect, when the tip is moved, the air blown in the first direction and the air blown in the second direction alternately hit the hair, thereby preventing heat from concentrating on one side of the hair.

[0089] (5) In the attachment described in any one of (1) to (4) above, the tip portion has at least a first tip portion and a second tip portion, and either the first tip portion or the second tip portion is attached to or detached from the base portion in a one-to-one relationship, and is configured to be freely replaceable.

[0090] According to this aspect, the tip can be replaced, making it possible to realize a dryer that is suitable for a variety of hair lengths or hair types.

[0091] (6) An attachment according to any one of (1) to (5) above, further comprising a detachable means, which enables the base and the tip to be detached and is configured to be located on the periphery of the attachment.

[0092] According to this aspect, since the attachment has the detachment means on the peripheral edge of the attachment, the fingers can easily reach the detachment means when removing the attachment, improving operability.

[0093] (7) In the attachment described in (6) above, the tip portion is configured to form at least a first space and a second space, and the air flowing into the second space is configured to be at a lower temperature than the air flowing into the first space, and the attachment / detachment means is arranged in the second space.

[0094] According to this aspect, it is possible to suppress thermal expansion and thermal deterioration of the attachment / detachment means.

[0095] (8) In the attachment described in (6) or (7) above, when the effective wind speed of the airflow flowing through the tip portion within the attachment is v1, the wind speed when blown out from the outlet is v2, the fluid density is ρ, the area of ​​the tip portion receiving the airflow is S, and the holding force of the attachment / detachment means is F, Designed to meet the requirements of TIFF2025128003000008.tif931.

[0096] According to this embodiment, according to Bernoulli's equation, the holding force F of the detaching means can be made greater than the force generated by the wind speed v. Therefore, the tip portion will not come off due to wind pressure during hair treatment, and can be removed with minimal force.

[0097] (9) In the attachment described in any one of (6) to (8) above, the attachment / detachment means comprises a magnetic member and a magnet, the magnetic member is held by a first holding portion provided on one of the base or the tip, and the magnet is held by a second holding portion provided on the other of the base or the tip, the first holding portion and the second holding portion are provided in positions facing each other in an attached state in which the tip is attached to the base, the second holding portion forms an insertion space into which the magnet can be inserted, the magnet is inserted and held in the insertion space with the direction toward the first holding portion in the attached state as the insertion direction, and the second holding portion has a fall prevention portion at the back in the insertion direction that prevents the magnet from falling off.

[0098] According to this aspect, it is possible to prevent the magnet from falling off due to a force applied to the magnet when it is attached.

[0099] (10) In the attachment described in (9) above, the magnetic member and the magnet are arranged so that their central axes are offset from each other in the attached state, and the central axis is an axis that includes the center of a cross section perpendicular to the insertion direction in the attached state and is along the insertion direction.

[0100] According to this aspect, it is possible to easily ensure a space for providing the fall-off prevention portion.

[0101] (11) In the attachment described in any one of (1) to (10) above, the tip portion is formed at least in part by a charged body and is configured to blow out positive ions and / or negative ions from the outlet.

[0102] According to this aspect, it is possible to remove static electricity from both the resin, which tends to be negatively charged, and the hair, which tends to be positively charged, thereby reducing damage to the hair caused by abrasion with the tip.

[0103] (12) In the attachment described in any one of (1) to (11) above, the base portion has an intake port that receives air from the dryer, and the tip portion has an outlet port that blows out the air, and (total area of ​​the outlet ports)≦(total area of ​​the intake ports).

[0104] According to this aspect, it is possible to reduce the pressure at the air outlet and increase the pressure at the air inlet according to Bernoulli's equation. Therefore, even if there are multiple air outlets, there is no backflow of air from the air outlets to the air inlet, and the pressure at the air outlets can be kept constant, preventing uneven hair treatment.

[0105] (13) In the attachment described in any one of (1) to (12) above, the tip portion comprises a curved plate and a deformation suppression portion, and the deformation suppression portion is provided on the curved plate and configured to suppress deformation of the curved plate compared to when the deformation suppression portion is not provided.

[0106] According to this aspect, deformation of the curved panel can be suppressed, and the direction of airflow from the protrusion can be stabilized.

[0107] (14) A dryer equipped with the attachment described in any one of (1) to (13) above.

[0108] According to this aspect, the tip can be replaced, making it possible to provide a dryer that is suitable for a variety of hair lengths or hair types.

[0109] (15) The dryer described in (14) above further comprises a throttling section, the throttling section being provided in the air flow path, and (total area of ​​the outlets of the attachment)≦(total area of ​​the throttling section).

[0110] According to this aspect, even if the cross-sectional area cannot be made large due to the blades of the dryer or the vanes of the motor, the pressure at the attachment outlet can be lowered, so there is no backflow of air and air can be blown out efficiently. Of course, this is not the case.

[0111] Finally, while various embodiments of the present invention have been described, these are presented by way of example only and are not intended to limit the scope of the invention. The novel embodiments may be embodied in various other forms, and various omissions, substitutions, and modifications may be made without departing from the spirit of the invention. Such embodiments and modifications are intended to be included within the scope and spirit of the invention, as well as within the scope of the inventions and their equivalents as defined in the accompanying claims. [Explanation of symbols]

[0112] 1: Attachment 1a: Attachment 1b: Attachment 1c: Attachment 2:Tip 2a: tip 2b: tip 2c: tip 3: Base 3c: base 4: Detachable part 4c: Detachable part 5: Ionizer 20:Protrusion 21: 1st protrusion 21a: 1st protrusion 22:Second protrusion 22a: 2nd protrusion 23:Air outlet 23a: Air outlet 24: Curved plate 24a: Curved plate 24b: Curved plate 25: Curved surface 26: Back side 27: Deformation suppression section 28:Inner wall 31: Intake port 32: corner area 33:Inner wall 41: Detachable button 42: Magnet 42c: Magnet 43: Metal screw 43c: Magnetic member 44c: Magnet insertion part 45c: Falling prevention part 46c: Magnetic member holding portion 47c: Insertion space 51: Positive ion generating unit 52: Negative ion generator 53: Charged state detection unit 54: Charge emission control section 55: Potential control section 100: Dryer 101: Main body 102: Handle 103: Switch section 104: Hand electrode 105: Constriction section 201:Air outlet 211: 1st outlet 221: 2nd outlet 261 :Inner area 271: Central rib 272: Radial rib 341: First Space 342: Second Space

Claims

1. An attachment for a dryer, a tip portion and a base portion; the base is configured to connect to the dryer; the tip portion includes a plurality of protrusions that come into contact with the user's hair; The plurality of protrusions are forming an outlet for air blown from the dryer, Each of the air outlets is configured to blow out the air in a direction that forms a predetermined angle with respect to a straight line connecting the center of the tip portion and the protrusion.

2. 2. The attachment according to claim 1, The plurality of protrusions include a first group of protrusions arranged in a ring shape around the center of the tip, and each of the air outlets of the first group of protrusions is configured to face N (N is a natural number) adjacent protrusions in a first direction along the ring shape.

3. 3. The attachment according to claim 2, The plurality of protrusions include a second group of protrusions arranged in a ring shape surrounding the first group of protrusions, and each of the air outlets of the second group of protrusions is configured to face M (M is a natural number) adjacent protrusions in a second direction along the ring shape.

4. 4. The attachment according to claim 3, The first group of protrusions and the second group of protrusions are configured such that the second direction is opposite to the first direction.

5. 2. The attachment according to claim 1, The tip portion is The device has at least a first tip portion and a second tip portion, and the first tip portion or the second tip portion is detachably attached to the base portion in a one-to-one relationship, and is configured to be freely replaceable.

6. 2. The attachment according to claim 1, Further, the device has an attachment / detachment means, The attachment / detachment means allows the base portion and the tip portion to be attached / detached and is configured to be located on the periphery of the attachment.

7. 7. The attachment according to claim 6, The tip portion is configured to form at least a first space and a second space, and the air flowing into the second space has a lower temperature than the air flowing into the first space, The attachment / detachment means is disposed in the second space.

8. 7. The attachment according to claim 6, Let v1 be the effective wind speed of the airflow flowing through the tip portion within the attachment, v2 be the wind speed when blown out from the outlet, ρ be the fluid density, S be the area of ​​the tip portion that receives the airflow, and F be the holding force of the detachable means. Something designed to satisfy.

9. 7. The attachment according to claim 6, the attachment / detachment means includes a magnetic member and a magnet, the magnetic member is held by a first holding portion provided on one of the base portion or the tip portion, the magnet is held by a second holding portion provided on the other of the base portion and the tip portion, the first holding portion and the second holding portion are provided at positions facing each other in an attached state in which the tip portion is attached to the base portion, the second holding portion forms an insertion space into which the magnet can be inserted, The magnet is inserted and held in the insertion space with a direction toward the first holding portion in the attached state as an insertion direction, The second holding portion includes a fall prevention portion at a rear end in the insertion direction that prevents the magnet from falling off. thing.

10. 10. The attachment according to claim 9, the magnetic member and the magnet are arranged such that their central axes are misaligned in the attached state, the central axis is an axis that includes the center of a cross section perpendicular to the insertion direction in the attached state and is aligned along the insertion direction. thing.

11. 2. The attachment according to claim 1, At least a portion of the tip portion is formed by a charged body and is configured to blow out positive ions and / or negative ions from the outlet.

12. 2. The attachment according to claim 1, the base portion includes an intake port for receiving air blown from the dryer, The front portion includes an air outlet for blowing out the air, (Total area of ​​the air outlets)≦(Total area of ​​the air inlets) Something that is.

13. 2. The attachment according to claim 1, The tip portion includes a curved plate and a deformation suppression portion, The deformation suppression portion is provided on the curved plate and is configured to suppress deformation of the curved plate compared to when the deformation suppression portion is not provided. thing.

14. A dryer, An item comprising an attachment according to any one of claims 1 to 13.

15. 15. The dryer of claim 14, Further provided with a throttling portion, The throttle portion is provided in a flow path of the air blown, (Total area of ​​the air outlets of the attachment)≦(Total area of ​​the throttle portions) Something that is.

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