CN114209143A

CN114209143A - Hair drier

Info

Publication number: CN114209143A
Application number: CN202210006703.XA
Authority: CN
Inventors: 高野龙一
Original assignee: Aderans Co Ltd
Current assignee: Aderans Co Ltd
Priority date: 2021-01-29
Filing date: 2022-01-05
Publication date: 2022-03-22
Anticipated expiration: 2042-01-05
Also published as: CN114209143B; JP2022117380A; JP6944607B1

Abstract

The present invention provides a blower, which is provided with: a blower body having a flow path having a gas inlet and a gas outlet, a gas flow section for flowing a gas in the flow path, and a gas heating section for heating the gas in the flow path; an attachment having an internal space with a gas inlet and a gas outlet; the adapter has a first center member and a plurality of first arm portions, an outer end portion of the first arm portion is connected to the casing portion, the attachment has a second center member and a plurality of second arm portions, an outer end portion of the second arm portion is connected to the casing portion, and gas flows through spaces between the plurality of first arm portions and spaces between the plurality of second arm portions.

Description

Hair drier

Technical Field

The invention relates to a blower, which can be provided with an accessory device at an air outlet of a blower main body.

Background

Among hair dryers, there is a hair dryer capable of fitting attachments of various shapes to an air outlet of a hair dryer main body. Some of such hair dryers include a hair dryer in which an attachment is detachably attached to a hair dryer main body by magnetic force (see, for example, patent document 1). In the hair dryer described in patent document 1, a magnet is embedded in one of a front end of a hair dryer body and a rear end of an attachment, and a magnetic material is attached to the other. The attachment is detachably attached to the hair dryer main body by a magnetic force between the magnet and the magnetic material.

However, depending on the method of use by the user, the attachment may be placed in a state where the attachment is removed from the blower main body. In this case, the magnetic force of the embedded magnet is reduced, and the attachment is easily detached from the blower main body. Thus, a need arises to replace the blower body or the attachment in which the magnet is embedded.

Further, even if the user wants to use other commercially available accessories, the size of the accessory is often not suitable, and the accessory cannot be attached to the hair dryer main body. Therefore, it is impossible to use accessories other than the dedicated accessories which are previously sized to the blower body.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 2015-13127

Disclosure of Invention

Problems to be solved by the invention

Accordingly, an object of the present invention is to provide a hair dryer which does not require replacement of a main component even in long-term use and can use various accessories.

Means for solving the problems

In order to solve the above problems, a hair dryer according to an aspect of the present invention includes: a blower body having a flow path having a gas inlet and a gas outlet, a gas flow section for flowing a gas in the flow path, and a gas heating section for heating the gas in the flow path; an attachment having an internal space with a gas inlet and a gas outlet; and an adapter having one end mounted on the gas outlet side of the blower main body and the other end mounted on the gas inlet side of the attachment, the adapter including a connection space for connecting the flow path of the blower main body and the internal space of the attachment, a magnet fixed to the adapter, a magnetic member fixed to the gas inlet side of the attachment, the adapter being detachably mounted on the attachment by a magnetic force, and the adapter being detachably mounted on the blower main body by a magnetic force or a mechanical attachment mechanism.

Effects of the invention

As described above, in the present invention, it is possible to provide a blower which does not require replacement of a main component even in long-term use and can use various accessories.

Drawings

Fig. 1 is a side sectional view schematically showing a blower of a first embodiment of the present invention.

Fig. 2 is a perspective view schematically showing a structure for attaching and detaching a blower main body, an adapter, and an attachment of a blower according to a first embodiment of the present invention.

Fig. 3 is a perspective view schematically showing a modification 1 of the attachment/detachment structure of the blower main body, the adapter, and the attachment of the blower according to the first embodiment of the present invention.

Fig. 4 is a side cross-sectional view schematically showing a modification 2 of the attachment/detachment structure of the blower main body, the adapter, and the attachment of the first embodiment of the present invention.

Figure 5 is a side cross-sectional view schematically illustrating a blower in a second embodiment of the present invention.

Fig. 6 is a perspective view schematically showing a structure for attaching and detaching a blower main body and an adapter of a blower according to a second embodiment of the present invention.

Fig. 7 is a side sectional view schematically showing a structure for attaching and detaching a blower main body, an adaptor, and an attachment of a blower according to a third embodiment of the present invention.

Fig. 8A is a side view of fig. 7 at arrow a-a.

Fig. 8B is a side view showing an arrow B-B of fig. 7.

Figure 9 is a side cross-sectional view schematically illustrating a blower in accordance with a third embodiment of the present invention incorporating the blower body, adapter and accessory shown in figure 7.

Description of reference numerals:

2: a blower; 10: a blower main body; 10A: a gas suction inlet; 10B: a gas outlet; 10C: a housing portion; 12: a flow path; 14: a magnetic member; 16: a grip portion; 18: a groove part; 19: an inserted portion; 20: an adapter; 20A: an end portion; 20B: the other end; 20C: a housing portion; 22: a connection space; 24. 24A, 24B: a magnet; 26: a protrusion portion; 28: a magnet holding portion; 28A: a first central member; 28B: a first arm section; 29: an insertion portion; 30: an attachment device; 30A: a gas inlet; 30B: a gas discharge port; 30C: a housing portion; 32: an interior space; 34: a magnetic member; 36: a protrusion shape; 38: a magnetic member holding portion; 38A: a second central member; 38B: a second arm section; 38A 1: a peripheral wall portion; 40: a fan; 42: a heater.

Detailed Description

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The embodiments described below are intended to embody the technical idea of the present invention, and the present invention is not limited to the following unless specifically described.

Members having the same function in each drawing are sometimes given the same reference numerals. Although the embodiments are shown separately for convenience in view of ease of explanation or understanding of the points, a replacement or a combination of parts of the structures shown in different embodiments is possible. In the embodiments described below, descriptions of common matters with the embodiments described above are omitted, and only differences will be described. In particular, the same operational effects achieved by the same configurations are not described in each embodiment. The sizes, positional relationships, and the like of the members shown in the drawings may be exaggerated for clarity of the description.

(Hair dryer of first embodiment of the present invention)

First, a blower 2 according to a first embodiment of the present invention will be described with reference to fig. 1 and 2. Fig. 1 is a side sectional view schematically showing a blower of a first embodiment of the present invention. Fig. 2 is a perspective view schematically showing a structure for attaching and detaching a blower main body, an adapter, and an attachment of a blower according to a first embodiment of the present invention.

The blower 2 of the present embodiment includes: a blower body 10, an adapter 20, and an attachment 30. Each of the housings has a housing portion 10C, a housing portion 20C, and a housing portion 30C formed of resin. The blower main body 10 includes a flow path 12 having a gas inlet 10A and a gas outlet 10B. The blower main body 10 further includes a gas flowing portion for flowing the gas in the flow path 12 and a gas heating portion for heating the gas in the flow path 12. In the present embodiment, a fan 40 driven by an electric motor is used as the gas flow portion, and a heater 42 that generates heat by resistance is used as the gas heating portion. However, the present invention is not limited to this, and any device or member that flows a gas may be used as the gas flowing portion, and any device or member that heats a gas may be used as the gas heating portion. The blower main body 10 includes a grip portion 16.

The attachment 30 of the present embodiment includes an internal space 32 having a gas inlet 30A and a gas outlet 30B. The gas discharge port 30B of the present embodiment has a flat cylindrical opening shape extending in the vertical direction of the drawing. The adaptor 20 has one end 20A connected to the end of the blower main body 10 on the gas outlet 10B side, and the other end 20B connected to the end of the attachment 30 on the gas inlet 30A side. In this state, the adaptor 20 includes the connection space 22 that communicates the flow path 12 of the blower main body 10 and the internal space 32 of the attachment 30.

In the adaptor 20, a ring-shaped magnet 24 is fitted so as to surround the outer periphery of the connection space 22. In other words, the magnet 24 is continuously provided on the circumference along the outer shape of the outer shell portion 20C of the adaptor 20. The magnet 24 is exposed at both the one end portion 20A and the other end portion 20B. However, the magnet 24 does not necessarily need to be exposed, and the surface of the magnet 24 may be covered with the housing portion 20C of the adaptor 20 in a range where a sufficient magnetic force is generated. The adapter 20 is not limited to the adapter in which the annular magnet 24 is disposed in the resin case 20C. For example, the adapter 20 may be formed without a housing portion so that the outer surface of the ring magnet 24 except for the surface to be exposed is covered with a protective layer.

An annular magnetic member 14 is attached to the end of the blower body 10 on the gas outlet 10B side so as to surround the outer periphery of the flow path 12. In other words, the magnetic member 14 is continuously provided on the circumference along the outer shape of the outer shell portion 10C of the blower body 10.

At the end of the attachment 30 on the gas inlet 30A side, a magnetic member 34 is fitted so as to surround the outer periphery of the internal space 32. In the present embodiment, 6 magnetic members 34 are arranged at equal intervals on the circumference. In other words, the magnetic members 34 are provided intermittently on the circumference along the outer shape of the outer shell portion 30C of the attachment 30.

The magnetic member 14 and the magnetic member 34 are made of iron or steel materials, for example.

The magnet 24 of the adaptor 20 attracts the magnetic member 14 of the blower main body 10 and the magnetic member 34 of the attachment 30, and the attachment 30 is detachably attached to the blower main body 10 via the adaptor 20. The blower main body 10, the adapter 20, and the attachment 30 are integrally coupled by the magnetic force of the magnet 24 of the adapter 20. In the blower 2 having the attachment 30 mounted thereon, hot air or cold air can be blown out from the air outlet 30B of the attachment 30 by the fan 40 and the heater 42. Due to the magnetic mounting, the attachment 30 can be easily removed. In addition, various other attachments 30 having the magnetic member 34 can be attached to the blower main body 10 in a detachable state via the adapter 20 by magnetic force.

Even if the magnetic force of the magnet 24 attached to the adapter 20 is deteriorated, the hair dryer 2 can be continuously used for a long period of time without replacing the hair dryer main body 10 and the attachment 30, which are main components, by replacing only the adapter 20, which is less expensive than the hair dryer main body 10 and the attachment 30.

In the present embodiment, not only the dedicated attachment 30 but also various commercially available attachments can be used. In this case, for example, the magnetic member can be bonded or stuck to the end of a commercially available attachment using a heat-resistant adhesive or double-sided tape. In the case where the size of the commercially available accessory greatly differs from the size of the blower main body 10, various commercially available accessories can be used by using the adapter 20 in which the size of the other end portion 20B on the accessory side is changed.

As described above, the hair dryer 2 of the present embodiment includes: a blower body 10 having a flow path 12 having a gas inlet 10A and a gas outlet 10B, a gas flow section 40 for flowing a gas in the flow path 12, and a gas heating section 42 for heating the gas in the flow path 12; an attachment 30 having an internal space 32 having a gas inlet 30A and a gas outlet 30B; and an adaptor 20 having one end 20A connected to an end of the blower body 10 on the side of the gas outlet 10B and the other end 20B connected to an end of the accessory 30 on the side of the gas inlet 30A, wherein the adaptor 20 includes a connection space 22 for connecting the flow path 12 of the blower body 10 and an internal space 32 of the accessory 30, a magnet 24 is attached to the adaptor 20, a magnetic member 14 and a magnetic member 34 are attached to an end of the blower body 10 on the side of the gas outlet 10B and an end of the accessory 30 on the side of the gas inlet 30A, and the accessory 30 is detachably attached to the blower body 10 via the adaptor 20 by magnetic force.

Thus, it is possible to provide the hair dryer 2 which can use various accessories without replacing the main components even in long-term use.

As described above, when the magnetic member 14 of the hair dryer body 10 and the magnetic member 34 of the attachment 30 are attracted by the same magnet 24 provided in the adapter 20, the adapter 20 can be made thin and compact. This also enables the blower 2 to be reduced in size as a whole.

As can be seen from fig. 2, the magnetic members 14 of the blower body 10 are continuously provided on the circumference, and the magnetic members 34 of the attachment 30 are intermittently provided on the circumference. Therefore, the magnetic member 14 becomes larger than the magnetic member 34 in terms of the joint area achieved by the magnetic force. Therefore, the magnetic force between the blower main body 10 and the adaptor 20 becomes stronger than the magnetic force between the adaptor 20 and the accessory device 30. This can avoid an indefinite state in which it is unclear whether the hair dryer main body 10 and the adaptor 20 are separated from each other and whether the adaptor 20 and the accessory 30 are separated from each other when the user performs the attachment/detachment operation of the accessory 30. In the present embodiment, the attachment 30 can be attached and detached easily in a state where the adaptor 20 is attached to the blower main body 10.

The magnetic force between the blower main body 10 and the adapter 20 is stronger, and thus a state in which the adapter 20 is fitted to the blower main body 10 is naturally formed. Therefore, even in the state where the attachment 30 is detached, the magnet 24 of the adaptor 20 is always in a state of attracting the magnetic member 14 of the hair dryer main body 10 without any special operation. Therefore, when the

magnetic members

14 and 34 of the blower main body 10 and the attachment 30 are attracted by 1 magnet 24, deterioration of the magnetic force of the magnet 24, which is the only magnet, can be reliably suppressed.

< modification 1 of attaching and detaching Structure

Next, a modified example 1 of the structure for attaching and detaching the blower main body 10, the adapter 20, and the attachment 30 of the blower 2 according to the first embodiment of the present invention will be described with reference to fig. 3. Fig. 3 is a perspective view schematically showing a modification 1 of the attachment/detachment structure of the blower main body, the adapter, and the attachment of the blower according to the first embodiment of the present invention.

The modification 1 is different in that the magnets 24 of the adaptor 20 are not continuously provided on the circumference as in the above embodiment, but are intermittently provided on the circumference. Further, it is different in that the number of the magnetic members 34 of the attachment 30 intermittently provided on the circumference becomes smaller than that of the above-described embodiment.

The number of the magnetic members 34 of the attachment 30 becomes small, and thus the magnetic force between the blower main body 10 and the adaptor 20 becomes stronger than the magnetic force between the adaptor 20 and the attachment 30.

Further, the magnet 24 of the adapter 20 and the magnetic member 34 of the attachment 30 are provided intermittently on the circumference, so that the attachment 30 can be attached to the adapter 20 only when the position of the magnet 24 coincides with the position of the magnetic member 34 in the circumferential direction. Therefore, the adapter 20 and the attachment 30 can be positioned in the circumferential direction without using a special positioning member.

< modification 2 of the attaching and detaching Structure

Next, a modified example 2 of the structure for attaching and detaching the blower main body 10, the adapter 20, and the attachment 30 of the blower 2 according to the first embodiment of the present invention will be described with reference to fig. 4. Fig. 4 is a side cross-sectional view schematically showing a modification 2 of the attachment/detachment structure of the blower main body, the adapter, and the attachment of the first embodiment of the present invention.

In modification 2, the difference from the above embodiment is that the diameters of the one end portion 20A and the other end portion 20B of the adapter 20 are different, and the one end portion 20A and the other end portion 20B are each equipped with a separate magnet 24A and a separate magnet 24B.

The magnet 24A of the one end 20A attracts the magnetic member 14 of the blower main body 10, and the magnet 24B of the other end 20B attracts the magnetic member 34 of the attachment 30. Thereby, the blower main body 10, the adapter 20, and the attachment 30 are joined as one body.

The attachment 30 shown in modification 2 is a diffuser type attachment having a plurality of fine holes 32 as an inner space. The attachment 30 is provided with a plurality of protruding shapes 36, and the protruding shapes 36 are also provided with holes 32. With this configuration, when the fan 40 is operated, the wind with a properly suppressed flow velocity can be uniformly delivered from the entire gas outlet 30B of the attachment 30.

As described above, in modification 2, the

magnetic members

14 and 34 of the blower main body 10 and the attachment 30 are attracted by the

separate magnets

24A and 24B of the adapter 20, respectively. Thus, even if the attachment 30 is different in size from the blower main body 10, the attachment 30 can be reliably attached to the blower main body 10 in a detachable state via the adapter 20 by magnetic force.

For example, the number of the magnets 24A of the one end portion 20A is set to be larger than the number of the magnets 24B of the other end portion 20B, so that the magnetic force between the hair dryer main body 10 and the adapter 20 can be made stronger than the magnetic force between the adapter 20 and the attachment 30. However, without being limited thereto, the magnetic force between the blower main body 10 and the adaptor 20 can be made stronger than the magnetic force between the adaptor 20 and the attachment 30 by adjusting the number and size of the magnetic members 14 of the blower main body 10 and the number and size of the magnetic members 34 of the attachment 30.

As described above, the magnetic force between the hair dryer body 10 and the adaptor 20 and the magnetic force between the adaptor 20 and the attachment 30 can be arbitrarily set by providing the magnet 24 provided in the adaptor 20, the magnetic member 14 provided in the hair dryer body 10 and the attachment 30, and the magnetic member 34 provided in the attachment 30 continuously or intermittently on the circumference.

(Hair dryer of second embodiment of the present invention)

Next, a blower according to a second embodiment of the present invention will be described with reference to fig. 5 and 6. Figure 5 is a side cross-sectional view schematically illustrating a blower in a second embodiment of the present invention. Fig. 6 is a perspective view schematically showing a structure for attaching and detaching a blower main body and an adapter of a blower according to a second embodiment of the present invention.

The present embodiment is different from the first embodiment described above in that the adaptor 20 is attached to the blower main body 10 not by magnetic force but by a mechanical attachment/detachment mechanism. As in the first embodiment, the adapter 20 and the attachment 30 are attached and detached by the magnetic force of the magnet 24 of the adapter 20.

The mechanical attachment/detachment mechanism is mainly composed of a groove 18 provided on the outer surface of the blower main body 10 and a protrusion 26 provided on the inner surface of the adapter 20. The width of the groove 18 is slightly larger than the outer dimension of the protrusion 26 in a plan view. The adapter 20 has an inner diameter slightly larger than an outer diameter of the blower main body 10, and the adapter 20 is fitted to the blower main body 10.

The groove 18 provided on the outer surface of the blower body 10 extends in the axial direction by a predetermined length from the end on the gas outlet 10B side toward the gas inlet 10A side, and then advances in the direction intersecting the axial direction and terminates. Preferably, the length extending in the direction intersecting the axial direction is longer than the size of the outer shape of the protruding portion 26 of the adapter 20 in plan view.

When the adapter 20 is attached to the blower 10, the adapter 20 is attached by sliding in the axial direction toward the gas inlet 10A so that the circumferential position of the protrusion 26 matches the position of the opening of the groove 18. Thereafter, the adaptor 20 and the blower body 10 are relatively rotated in the circumferential direction so that the protrusion 26 is along the groove 18, and the protrusion 26 is disposed in a region of the groove 18 in a direction intersecting the axial direction. The adapter 20 can be reliably attached to the hair dryer 10 by the constraint of the protrusion 26 by the groove 18. Further, the adaptor 20 can be easily detached from the hair dryer 10 by the reverse order to that described above.

As in the first embodiment, the adapter 20 and the attachment 30 can be connected to each other by attracting the magnetic member 34 of the attachment 30 by the magnetic force of the magnet 24 provided in the adapter 20.

As described above, in the second embodiment, the adaptor 20 is attached to the blower main body 10 by the groove 18 and the protrusion 26, which are mechanical attachment and detachment mechanisms. The magnet 24 is attached to the adaptor 20, the magnetic member 34 is attached to the end of the attachment 30 on the gas inlet 30A side, and the attachment 30 is attached to the blower main body 10 in a detachable state via the adaptor 20 by magnetic force.

Therefore, in the hair dryer 2 according to the second embodiment, the adaptor 20 can be reliably attached to the hair dryer main body 10 by the groove 18 and the protrusion 26 which are mechanical attachment and detachment mechanisms, and the attachment 30 can be easily attached to the hair dryer main body 10 in an attachable and detachable state via the adaptor 20 by the magnetic force of the magnet 24 of the adaptor 20.

In the second embodiment, since the blower main body 10 and the attachment 30 do not include magnets, if only the adapter 20 is replaced even when the magnetic force of the magnets 24 is deteriorated, the blower 2 can be continuously used for a long period of time without replacing the blower main body 10 and the attachment 30 of the main components. In addition, various accessories can also be used with the adapter 20.

(Hair dryer according to third embodiment of the present invention)

Next, a blower according to a third embodiment of the present invention will be described with reference to fig. 7, 8A, 8B, and 9. Fig. 7 is a side sectional view schematically showing a structure for attaching and detaching a blower main body, an adaptor, and an attachment of a blower according to a third embodiment of the present invention. Fig. 8A is a side view of fig. 7 at arrow a-a. Fig. 8B is a side view showing an arrow B-B of fig. 7. Figure 9 is a side cross-sectional view schematically illustrating a blower in accordance with a third embodiment of the present invention incorporating the blower body, adapter and accessory shown in figure 7. Fig. 8A and 8B show not only the portion corresponding to the cross section of fig. 7 but also the entire portion in the circumferential direction.

In the hair dryer of the above embodiment, the magnet and the magnetic member are arranged so as to surround the outer periphery of the flow path on the circumference along the outer shapes of the casing portion 10C, the casing portion 20C, and the casing portion 30C, but the present embodiment is different from the above embodiment in that the magnet 24 and the magnetic member 34 are arranged substantially at the center of the flow path. In the present embodiment, the adaptor 20 is attached to the attachment 30 by magnetic force, and the adaptor 20 is attached to the hair dryer body 10 by a mechanical attachment and detachment mechanism. In the connecting region of the blower main body 10, the adapter 20, and the attachment 30, there is a substantially circular sectional shape. However, the shape is not limited to this, and may be an ellipse, an oval, or a polygonal shape with curved corners.

First, a mechanism for attaching and detaching the adaptor 20 and the attachment 30 by magnetic force will be described. The adapter 20 is provided with a magnet holding portion 28, and the magnet holding portion 28 includes a first central member 28A located at substantially the center of the flow path and 3 first arm portions 28B radially extending from the first central member 28A. The magnet 24 is fixed to the first center member 28A, and the outer ends of the 3 first arm portions 28B are connected to the housing portion 20C of the adapter 20. The space between the 3 radially extending first arm portions 28B serves as a gas flow path and constitutes a part of the connecting space 22.

The attachment 30 is formed with a magnetic member holding portion 38, and the magnetic member holding portion 38 has a second central member 38A located at substantially the center of the flow path and 3 second arm portions 38B radially extending from the second central member 38A. The magnetic member 34 is fixed to the second central member 38A, and the outer ends of the 3 second arm portions 38B are connected to the housing portion 30C of the attachment 30. The space between the 3 radially extending second arm portions 38B serves as a gas flow path and constitutes a part of the internal space 32.

The end surface of the magnet 24 fixed to the first center member 28A of the adapter 20 on the attachment 30 side is positioned at the other end 20B of the adapter 20. The end of the magnetic member 34 on the adapter 20 side that is fixed to the second central member 38A of the attachment 30 is located at the gas inlet 30A of the attachment 30. Thus, the adapter 20 and the attachment 30 are connected in a detachable state by magnetic force in a state where the magnet 24 and the magnetic member 34 are in contact with each other.

Further, a peripheral wall portion 38A1 is formed around the second central member 38A of the attachment 30. Positioning between the adapter 20 and the attachment 30 can be performed by surrounding the outer surface of the first center member 28A of the adapter 20 in a contacting manner with the inner surface of the peripheral wall portion 38A 1. Thereby, a compact positioning mechanism can be obtained.

Next, a mechanical mechanism for detachably joining the adaptor 20 and the blower main body 10 will be described. A stepped insertion portion 29 having a slightly smaller outer diameter is formed from the one end portion 20A of the adapter 20 to the blower main body 10 side. On the other hand, in the region of the blower main body 10 on the gas outlet 10B side, a stepped inserted portion 19 having a slightly larger inner diameter is formed. Since the outer diameter of the insertion portion 29 approximately matches the inner diameter of the inserted portion 19, the adaptor 20 and the blower main body 10 can be connected by a fitting structure (so-called "cage (inro) connecting structure") shown in fig. 9 by inserting the insertion portion 29 into the inserted portion 19 as indicated by an arrow in fig. 7. The insertion portion 29 and the inserted portion 19 constitute a mechanical attachment/detachment mechanism according to the present embodiment.

For example, the adaptor 20 can be securely engaged with the blower body 10 by employing an interference fit in which the outer diameter of the insert 29 is slightly larger than the inner diameter of the inserted part 19. In the case where the adapter 20 and the blower body 10 are formed of a resin material, they are elastically deformed, so that the user can easily detach the adapter 20 from the blower body 10. In particular, by pressing and slightly recessing the side surface of the adapter 20, the adapter 20 can be detached from the blower main body 10 with a small force. In the present embodiment, the insertion portion 29 is formed in the adapter 20 and the inserted portion 19 is formed in the blower main body 10, but the present invention is not limited thereto, and conversely, the inserted portion may be formed in the adapter 20 and the inserted portion may be formed in the blower main body 10.

The following disassembly and assembly mechanisms can also be adopted: the cross-sectional shape of the fitting portion of the adaptor 20 and the blower main body 10 is not circular but is a shape in which the outer shape and the inner shape change in the circumferential direction, and the adaptor 20 and the blower main body 10 are relatively rotated to have a rotational position at which the both are fixed and a rotational position at which a gap is generated between the both. Further, the attachment/detachment mechanism including the groove portion 18 and the protrusion portion 26 as in the second embodiment may be employed.

The mechanical attachment/detachment mechanism is not limited to the fitting structure (so-called "cage (inro) connection structure") shown in fig. 9 or the structure using the groove portion 18 and the protrusion portion 26, and any other mechanical attachment/detachment mechanism that can be easily and quickly attached/detached may be used.

The number of arm portions 28B (38B) radially extending from the center member 28A (38A) is not limited to 3. There may be 2 or more than 4 pieces. In order to obtain sufficient strength and ensure a larger gas flow path, the cross-sectional shape of the arm portion 28B (38B) is preferably long in the direction parallel to the flow of the gas and small in the width direction of the arm portion orthogonal to the flow of the gas. In the present embodiment, the 3 arm portions 28B (38B) are arranged at intervals of approximately 120 degrees evenly spaced in the circumferential direction, but are not limited thereto. The arrangement of the arm portion 28B (38B) can be changed to change the flow of the gas according to the application.

In the present embodiment, the positions of the first arm portion 28B of the adapter 20 and the second arm portion 38B of the attachment 30 in the circumferential direction are matched in order to reduce the flow resistance of the gas, but the present invention is not limited thereto. The first arm portion 28B and the second arm portion 38B can also be made different in position in the circumferential direction. Further, the number of the first arms 28B of the adapter 20 can be made different from the number of the second arms 38B of the attachment 30. The first arm portion 28B and the second arm portion 38B can also turn the flow of the gas by having curved surfaces like the blades of the fan.

In the present embodiment, the connection adapter 20 is connected to the hair dryer main body 10 by a mechanical attachment/detachment mechanism, but the present invention is not limited thereto. Can also be formed as follows: the blower main body 10 has a center member to which the magnetic member 14 is attached on the side of the gas outlet 10B, and a plurality of arm portions extending radially from the center member, and the outer ends of the radially extending arm portions are connected to the outer shell portion 10C of the blower main body 10. Accordingly, the adaptor 20 and the blower main body 10 can be attached and detached by the magnetic force between the magnet 24 and the magnetic member 14.

In this case, it is conceivable to use

different magnets

24A and 24B on the blower main body 10 side and the attachment 30 side. In this case, the size, number, and the like of the

magnets

24A and 24B can be adjusted so that the magnetic force between the adapter 20 and the blower main body 10 is stronger than the magnetic force between the adapter 20 and the attachment 30.

It is also conceivable to use 1 magnet 24, for example, a truncated cone-shaped magnet having a larger surface on the blower main body 10 side than on the attachment 30 side. This makes it possible to make the magnetic force between the adaptor 20 and the blower main body 10 stronger than the magnetic force between the adaptor 20 and the attachment 30. This prevents the adaptor 20 from being detached from the blower main body 10 when the attachment 30 is attached and detached.

As described above, in the present embodiment, the adapter 20 has the first center member 28A to which the magnet 24 is fixed and the plurality of first arm portions 28B radially extending from the first center member 28A, the outer end portions of the radially extending first arm portions 28B are connected to the housing portion 20C of the adapter 20, the attachment 30 has the second center member 38A to which the magnetic member 34 is fixed and the plurality of second arm portions 38B radially extending from the second center member 38A, the outer end portions of the radially extending second arm portions 38B are connected to the housing portion 30C of the attachment 30, and the gas flows in the space between the plurality of first arm portions 28B and the space between the plurality of second arm portions 38B.

Accordingly, the fan 40 provided in the blower main body 10 sucks the outside air from the air inlet 10A, and the air flows through the flow path 12 and flows out from the air outlet 10B into the adaptor 20. The gas flowing into the adapter 20 from the one end portion 20A flows into the connecting space 22 including the space between the 3 first arm portions 28B, and flows out to the attachment 30 from the other end portion 20B. The gas flowing into the attachment 30 from the gas inlet 30A flows through the internal space 32 including the space between the 3 second arm portions 38B, and is blown out to the outside from the gas outlet 30B.

In the present embodiment, since the magnet 24 and the magnetic member 34 are disposed at substantially the center of the adapter 20 and the attachment 30, the attachment 30 can be easily and reliably attached to and detached from the adapter 20 by 1 pair of the magnet 24 and the magnetic member 34. The magnet 24 and the magnetic member 34 are located at substantially the center, so that the user can attach and detach the adapter 20 and the attachment 30 without being conscious of the relative rotational position. Further, by positioning the adapter 20 and the attachment 30 at substantially the center thereof, a compact positioning mechanism can be realized. Depending on the application, it is also conceivable to provide a magnetic member on the adapter 20 side and a magnet on the attachment 30 side.

Although the embodiments of the present invention have been described, the details of the structure may be changed from the disclosure, and the combination of elements and the sequence in the embodiments may be changed without departing from the scope of the invention and the spirit of the invention as claimed.

Claims

1. A hair dryer is characterized by comprising:

a blower body having a flow path having a gas inlet and a gas outlet, a gas flow section for flowing a gas in the flow path, and a gas heating section for heating the gas in the flow path;

an attachment having an internal space with a gas inlet and a gas outlet; and

an adapter having one end mounted on the gas outlet side of the blower main body and the other end mounted on the gas inlet side of the attachment, the adapter having a connection space for connecting the flow path of the blower main body and the internal space of the attachment,

a magnet is fixed to the adapter,

a magnetic member is fixed to the gas inlet side of the attachment, the adapter is detachably attached to the attachment by a magnetic force,

the adapter is detachably attached to the hair dryer main body by a magnetic or mechanical attachment/detachment mechanism,

the adapter has a first center member to which the magnet is fixed and a plurality of first arm portions radially extending from the first center member, an outer end portion of the first arm portion radially extending being connected to a housing portion of the adapter,

the attachment has a second center member to which the magnetic member is fixed and a plurality of second arm portions radially extending from the second center member, an outer end portion of the radially extending second arm portion being connected to an outer shell portion of the attachment,

gas flows in a space between the plurality of first arm portions and a space between the plurality of second arm portions.

2. The hair dryer of claim 1,

the adapter is detachably attached to the hair dryer main body by a magnetic force,

the magnetic force between the hair dryer body and the adapter is stronger than the magnetic force between the adapter and the accessory device.

3. The hair dryer of claim 1,

the adapter is detachably attached to the hair dryer main body by a mechanical attachment/detachment mechanism, and the adapter is detachably attached to the hair dryer main body by a fitting structure including an insertion portion formed on one of the adapter and the hair dryer main body and an inserted portion formed on the other of the adapter and the hair dryer main body.