JP7456918B2 - Ear fittings and heating devices - Google Patents

Description

The present invention relates to ear attachments and heating devices.

Patent Document 1 describes a heating device that is worn on the ear. The heating device in Patent Document 1 is a bag or bag-like object that has an opening for inserting the ear and is sized to fit the ear. The heating device in Patent Document 1 also has a wearing part that is equipped with a heat-generating part and covers part or all of the ear.

JP2018-086202A

In the heating tool of Patent Document 1, the heat generating part is integrated with the wearable part, and there is still room for improvement in that the heat generating part as a heating body cannot be replaced.

SUMMARY OF THE INVENTION An object of the present invention is to provide an ear fitting and a heating tool that are capable of efficiently heating the auricle with a heating element and that can improve the ease of attaching and removing the heating element.

An ear fitting according to a first aspect of the present invention is an ear fitting that can be worn on the ear, and has a housing space capable of accommodating a heating element, and a partition surface that divides the housing space is A concave surface formed on the back side of a contact surface that contacts the auricle, a collar surface extending from an open end of the concave surface, and a predetermined portion that is a part of the collar surface with a gap in the axial direction of the concave surface. a flange facing surface disposed to face each other, and between the predetermined portion of the flange surface and the flange facing surface, a part of the heating body is arranged from the inside to the outside in the radial direction of the concave surface. The predetermined portion of the collar surface is radially outer than the radially inner end and closer to the bottom side of the concave surface in the axial direction than the open end of the concave surface. It has a positioning part.

As one aspect of the present invention, the brim-facing surface is located only on a side opposite to the bottom side of the concave surface in the axial direction from the open end of the concave surface.

As one aspect of the present invention, the predetermined portion of the collar surface includes an inclined surface that slopes toward the bottom side of the concave surface in the axial direction from the inside to the outside in the radial direction, and The portion in the predetermined portion is constituted by the inclined surface.

As one aspect of the present invention, the dividing surface connects the flange surface and the flange opposing surface, and includes a connecting wall surface located on the outside of the gap in the radial direction between the flange surface and the flange opposing surface. Be prepared.

An ear fitting according to one aspect of the present invention includes a fitting portion that can be fitted into the concha of the auricle, and the contact surface and the concave surface are constituted by a surface of the fitting portion.

As one aspect of the present invention, the ear wearing device has an insertion part that protrudes from the fitting part and can be inserted into the ear canal, and the predetermined part of the flange surface is formed by the surface of the insertion part.

A heating tool according to a second aspect of the present invention includes the above ear fitting and the heating body.

Advantageous Effects of Invention According to the present invention, it is possible to provide an ear fitting and a heating tool that are capable of efficiently heating the auricle with a heating element and that are capable of improving the ease of attaching and removing the heating element.

FIG. 1 is an exploded perspective view of a heating tool as an embodiment of the present invention. FIG. 2 is a perspective view showing how the heating tool shown in FIG. 1 is used. FIG. 3 is a diagram showing a state in which the heating tool shown in FIG. 2 is in use and is attached to an ear. FIG. 2 is a diagram showing a single heating element of the heating tool shown in FIG. 1; 5(a) and 5(b) are a top view and a bottom view of the ear fitting of the heating tool shown in FIG. 1, respectively. 5(a) and 5(b); FIG. It is a II-II cross-sectional view of FIG. 5(a) and FIG. 5(b). FIG. 3 is a cross-sectional view taken along line III-III of FIG. 5( a ) and FIG. 5( b ). FIG. 3 is a sectional view of the heating tool in use shown in FIG. 2; FIG. 2 is a sectional view showing a state in which a heating body is being attached to the ear fitting shown in FIG. 1;

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of an ear fitting and a heating device according to the present invention will be described by way of example with reference to the drawings. Common components in each figure are designated by the same reference numerals.

1 and 2 are perspective views showing a heating tool 100 as an embodiment of the heating tool according to the present invention. As shown in FIGS. 1 and 2, the heating tool 100 includes a heating body 2, a cover member 3, and an ear fitting 4 as an embodiment of the ear fitting according to the present invention. FIG. 1 is an exploded perspective view of the heating tool 100. FIG. 2 is a perspective view of the heating tool 100 in use. The heating device 100 may be distributed on the market in a state in which the heating body 2, the cover member 3, and the ear fitting 4 are disassembled separately (see FIG. 1). It may be distributed on the market in a used state with the cover member 3 attached (see FIG. 2). Furthermore, the heating body 2, the cover member 3, and the ear fitting 4, which constitute the heating tool 100, may be distributed separately on the market.

FIG. 3 is a diagram showing a state in which the heating tool 100 in the used state shown in FIG. 2 is worn on the user's ear. As shown in FIG. 3, the heating tool 100 of this embodiment is used by being worn on the ear. Although the details will be described later, according to the heating tool 100, a predetermined part of the user's ear can be warmed by the heating body 2 while the heating tool 100 is attached to the user's ear. By warming the ears, poor blood circulation can be improved, and symptoms such as dizziness, tinnitus, headaches, and stiff shoulders (hereinafter referred to as "vertigo, etc.") can be expected to be improved. In addition, by warming the ears, the internal parasympathetic nerves are stimulated by the heat, resulting in a relaxing effect.

As shown in FIG. 3, in the heating tool 100 of the present embodiment, the cover member 3 is inserted into the external ear canal EA, which is the so-called ear canal, and the ear fitting 4 is fitted into the concha CA of the auricle AU. It can be fixed to the ear by attaching it to the ear. By fixing the heating tool 100 of the present embodiment to the ear in this manner, the heating tool 100 is completely attached to the ear. However, the heating tool 100 only needs to be able to be worn on the ear, and the method of fixing it is not particularly limited. For example, the heating tool 100 may be fixed to the ear simply by being inserted into the external ear canal EA and tightly fitting into the inner surface of the external ear canal EA. Further, the heating tool 100 may be fixed to the ear simply by being fitted into the concha CA and closely fitting to the inner surface of the concha CA. Furthermore, the heating tool 100 may be fixed to the ear by, for example, pinching any part of the auricle AU other than the concha CA.

Hereinafter, the details of each of the heating body 2, cover member 3, and ear fitting 4 of the heating tool 100 will be explained.

[Heating body 2]
FIG. 4 is a diagram showing the heating body 2 alone. The heating body 2 of this embodiment is a disposable body warmer. The heating element 2 is sealed in an air-tight film bag before use. The heating element 2 before use may be sealed in a film bag as a single heating element 2, or may be sealed in a film bag together with the ear fitting 4 after being attached to the ear fitting 4 in advance. good.

The heating body 2 of this embodiment includes a heat generating composition 5 that causes a chemical reaction accompanied by heat generation when exposed to air, and a container 6 that houses the heat generating composition 5 therein. The exothermic composition 5 includes, for example, oxidizable metals (such as iron powder), activated carbon, carbon black, water retention agents (such as wood flour, vermiculite, diatomaceous earth, perlite, silica gel, alumina, and water-absorbing resins), and metal salts (such as common salt). ), water, etc., in appropriate amounts. The container 6 of this embodiment includes a first sheet 6a and a second sheet 6b that sandwich and store the heat generating composition 5 therebetween. The first sheet 6a and the second sheet 6b are joined at their peripheral edges by, for example, adhesion, welding, etc., with the exothermic composition 5 sandwiched between them.

The heat generating composition 5 is sandwiched between the first sheet 6a and the second sheet 6b such that the first sheet 6a has a hat shape and the second sheet 6b has a circular flat shape. Although details will be described later, the heating body 2 of this embodiment is attached to the ear fitting 4 so that the first sheet 6a is covered with the ear fitting 4 (see FIG. 9). On the other hand, the heating body 2 of this embodiment is attached to the ear fitting 4 with the second sheet 6b exposed to the outside (see FIGS. 3 and 9).

In this embodiment, the air permeability of the first sheet 6a is higher than that of the second sheet 6b. By doing so, in a state where the heating body 2 is attached to the ear fitting 4, heat radiation through the second sheet 6b exposed to the outside can be suppressed. In particular, in this embodiment, the first sheet 6a is preferably a moisture-permeable sheet, and the second sheet 6b is preferably a moisture-impermeable sheet.

The first sheet 6a may be made of, for example, a material with high air permeability, and may be made of a material in which ventilation holes are appropriately formed. Examples of materials constituting the first sheet 6a include woven fabric, nonwoven fabric, synthetic resin, rubber, and elastomer. The second sheet 6b may be made of, for example, a material with low air permeability. Examples of the material constituting the second sheet 6b include synthetic resin, a laminate of synthetic resin and woven fabric or nonwoven fabric, and the like.

Examples of fiber materials constituting highly breathable woven or nonwoven fabrics include synthetic fibers such as nylon, vinylon, polyester, rayon, acrylic, polyethylene, polypropylene, acetate, polyvinyl chloride, and polybutylene terephthalate, cotton, linen, Examples include natural fibers such as silk and paper, and mixed fibers of synthetic fibers and natural fibers. These fiber materials may be used alone or in combination of two or more.

As the material constituting the synthetic resin with low air permeability, for example, the same material as the resin material exemplified for the above-mentioned fiber material can be used. Therefore, the second sheet 6b may be, for example, a resin film made of the resin material mentioned above as an example of the fiber material. Further, the first sheet 6a may be a resin film similar to the second sheet 6b, in which ventilation holes are appropriately formed.

As described above, the heating body 2 of this embodiment has a configuration including the exothermic composition 5 that causes a chemical reaction accompanied by heat generation when it comes into contact with air, but is not limited to this configuration. The heating body 2 may have any configuration as long as it can store heat for a predetermined period of time, and may be used by heating it in a microwave oven, for example. Further, the heating body 2 may be one that utilizes the heat of solidification of a sodium acetate aqueous solution that is in a supercooled state at room temperature, for example.

Further, in the heating body 2 of this embodiment, the container 6 that encloses the heat generating composition 5 is constituted by the first sheet 6a and the second sheet 6b, but is not limited to this configuration. The structure of the container 6 is not particularly limited as long as it accommodates and holds the heat-generating composition 5 in a manner corresponding to the structure of the ear fitting 4 .

Hereinafter, the portion of the heating body 2 of this embodiment in which the exothermic composition 5 is accommodated will be referred to as the main body portion 2a of the heating body 2. The main body portion 2a of this embodiment has a substantially truncated conical outer shape, but the outer shape is not particularly limited. Furthermore, hereinafter, a portion of the heating body 2 of this embodiment that protrudes from the main body portion 2a will be referred to as a held portion 2b. The held portion 2b of this embodiment is a flange portion that protrudes radially outward from the large-diameter end of the truncated conical main body portion 2a. Further, the held portion 2b of this embodiment is constituted by the peripheral portions of the first sheet 6a and the second sheet 6b.

[Cover member 3]
As shown in FIGS. 1 and 2, the cover member 3 is configured to be attachable to an insertion portion 12 of the ear fitting 4, which will be described later. More specifically, the cover member 3 of this embodiment includes a mounting cylinder part 3a (see FIG. 9) into which the insertion part 12 of the ear fitting 4 is fitted, and a mounting cylinder part 3a that is folded back from the tip of the mounting cylinder part 3a. and an exterior cylindrical portion 3b that is continuous with.

The insertion portion 12 of the ear fitting 4 is inserted into the interior of the cover member 3 through the opening on the base end side of the mounting cylinder portion 3a. The insertion part 12 can hold the mounting cylinder part 3a by coming into close contact with the inner surface of the mounting cylinder part 3a. Although details will be described later, the insertion portion 12 of the ear fitting 4 of this embodiment includes an annular convex portion 12b1. The annular protrusion 12b1 of the insertion portion 12 fits into an annular recess 3a1 (see FIG. 9) provided on the inner surface of the mounting tube 3a. Thereby, the retention of the cover member 3 by the insertion portion 12 can be improved.

The exterior cylinder part 3b covers the radially outer side of the mounting cylinder part 3a. An annular space is defined between the mounting cylinder part 3a and the exterior cylinder part 3b. Therefore, when the outer cylindrical part 3b is inserted into the external ear canal EA as shown in FIG. While being elastically deformed, it comes into close contact with the inner surface of the external ear canal EA. In this way, by attaching the cover member 3 to the ear fitting 4, the cover member 3 fits into the external ear canal EA so as to be in close contact with the inner surface of the external ear canal EA, and the fixation of the heating tool 100 by the outer ear canal EA is improved. can be increased. Moreover, by using the cover member 3, the external ear canal EA can be closed, and sound insulation can be improved. As a result, external noise and the like can be blocked, and the user wearing the heating tool 100 can easily relax.

The material constituting the cover member 3 is not particularly limited, and examples thereof include rubber, elastomer, synthetic resin including soft resin and hard resin, and the like. As the synthetic resin, for example, polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET), etc. can be used. In the cover member 3 of this embodiment, the mounting cylinder part 3a and the exterior cylinder part 3b are integrally formed from the same material, but may be formed from different materials. Further, the cover member 3 may have a configuration in which a base material such as rubber, elastomer, or synthetic resin is mixed with a material such as metal or carbon. Furthermore, the cover member 3 may be made of thermally conductive resin.

[Ear fitting 4]
The ear fitting 4 is configured such that the above-described heating body 2 and cover member 3 can be attached thereto. Moreover, the ear fitting 4 is configured to be able to be worn on the ear together with the attached heating element 2 and cover member 3. Note that "the ear fitting 4 can be worn on the ear" does not mean that the ear fitting 4 itself is directly fixed to the ear, but also means that the ear fitting 4 is fixed to the ear, such as the cover member 3. The meaning also includes being indirectly fixed to the ear via another member such as.

FIG. 5(a) is a top view of the ear fitting 4 alone as seen from the top side. FIG. 5(b) is a bottom view of the ear fitting 4 alone as seen from the bottom side. Here, the "upper surface" of the ear fitting 4 means the surface located on the auricle AU (see FIG. 3) side when the ear fitting 4 is attached to the ear. Further, the "lower surface" of the ear fitting 4 means the surface opposite to the upper surface. FIG. 6 is a cross-sectional view of the ear fitting 4 taken along line II shown in FIGS. 5(a) and 5(b). FIG. 7 is a sectional view of the ear fitting 4 taken along line II-II shown in FIGS. 5(a) and 5(b). FIG. 8 is a sectional view of the ear fitting 4 taken along line III--III shown in FIGS. 5(a) and 5(b). Details of the ear fitting 4 will be described below with reference to FIGS. 1 to 3 and 5 to 8.

As shown in FIG. 1 and the like, the ear fitting 4 of this embodiment includes a contact part 11, an insertion part 12, a holding part 13, and a connecting collar part 20.

<Contact part 11>
The contact portion 11 contacts a predetermined portion of the auricle AU when the ear fitting 4 is attached to the ear (see FIG. 3). The predetermined portion of the auricle AU that the contact portion 11 comes into contact with when the ear fitting 4 is attached to the ear (see FIG. 3) is not particularly limited. By heating any part of the auricle AU through the contact portion 11 with the heating body 2, poor blood circulation can be improved, and symptoms such as dizziness can be expected to be improved. In addition, the internal parasympathetic nerves are stimulated by heating, resulting in a relaxing effect.

As shown in FIG. 3, the contact portion 11 of the present embodiment includes a fitting portion 14 that can be fitted into the concha CA of the auricle AU. The fitting portion 14 is configured to come into contact with the inner surface of the concha CA as a predetermined portion of the auricle AU by being fitted into the concha CA. More specifically, the fitting part 14 as the contact part 11 of the present embodiment is fitted into the concha CA so as to come into contact with the inner surface of the concha cavity among the inner surfaces of the concha CA. It is configured. As described above, the predetermined part of the auricle AU that the contact part 11 comes into contact with is not particularly limited, but the contact part 11 is fitted into the concha CA as in the present embodiment, so that the contact part 11 contacts the concha CA. The fitting portion 14 is preferably in contact with the inner surface, and particularly preferably the fitting portion 14 is in contact with the inner surface of the concha cavity. By heating the inner surface of the concha CA with the heating body 2 through the fitting part 14 as the contact part 11, the internal parasympathetic nerves can be efficiently heated. Thereby, the above-mentioned relaxing effect can be further enhanced.

Hereinafter, for convenience of explanation, the extending direction of the fitting part 14 will be referred to as "height direction A of the fitting part 14" or simply "height direction A." The fitting portion 14 of this embodiment has a substantially truncated conical outer shape. Therefore, the height direction A of the fitting part 14 of this embodiment is the central axis direction of the annular side wall part 15 (see FIG. 1 etc.) which will be described later. Further, for convenience of explanation, the direction from the base end side to the distal end side of the fit-in part 14 in the height direction A of the fit-in part 14 may be simply referred to as "upper side" hereinafter. Further, in the height direction A of the fitting part 14, the direction from the distal end side to the base end side of the fitting part 14 may be simply referred to as "lower side". In this embodiment, the upper side means one end side of the annular side wall portion 15 (see FIG. 1, etc.) where a top plate portion 16 (see FIG. 1, etc.), which will be described later, is connected. The lower side in this embodiment means the other end side of the annular side wall portion 15 opposite to the one end side where the top plate portion 16 is continuous.

As shown in Figures 5 to 8, the fitting portion 14 of this embodiment defines an internal space 15a capable of accommodating a heating body 2 that heats the inner surface of the concha CA through the fitting portion 14. The fitting portion 14 of this embodiment has a convex surface that contacts the inner surface of the concha CA and a concave surface that defines the internal space 15a behind the concha CA. Specifically, the fitting portion 14 of this embodiment includes an annular side wall portion 15 and a top plate portion 16. The annular side wall portion 15 is configured to be able to fit into the concha CA. In particular, the annular side wall portion 15 of this embodiment can be fitted by being sandwiched between the inner surface of the concha CA. More specifically, the annular side wall portion 15 of this embodiment can be fitted by being sandwiched between the inner surface of the concha cavity, among the inner surfaces of the concha CA. The annular side wall portion 15 defines an internal space 15a capable of accommodating the main body portion 2a (see FIG. 4) of the thermal body 2 therein. The top plate portion 16 is connected to one end (hereinafter referred to as the "upper end") of the upper side of the annular side wall portion 15. The upper end of the internal space 15a of the annular side wall portion 15 is closed by the top plate portion 16. In other words, the internal space 15a of this embodiment is a truncated cone-shaped space defined by the annular side wall portion 15 and the top plate portion 16. The top plate portion 16 has a bottom contact surface 16a that can contact the bottom surface of the concha CA when the annular side wall portion 15 is fitted into the concha CA. More specifically, the bottom contact surface 16a of this embodiment is configured to be capable of contacting the bottom surface of the concha cavity among the bottom surfaces of the concha CA. In this embodiment, the bottom contact surface 16a of the top plate portion 16 is composed of the top plate lower surface 17b that faces the internal space 15a of the top plate portion 16 and the top plate upper surface 17a on the opposite side. Note that, in this embodiment, the outer surface of the annular side wall portion 15 of the fitting portion 14 constitutes a lateral contact surface that can contact the inner surface of the concha CA.

The heating body 2 described above is attached to the ear fitting 4 by having its main body 2a accommodated in the internal space 15a. Specifically, the main body portion 2a of the heating element 2 has an open end that is one lower end (hereinafter referred to as “lower end”) of the annular side wall portion 15 on the opposite side from the upper end that is connected to the top plate portion 16. It can be accommodated in the internal space 15a. The main body portion 2a of the heating body 2 does not contact the annular side wall portion 15 and the top plate portion 16 within the internal space 15a, and is separated from the annular side wall portion 15 and the top plate portion 16 by a gap X (see FIG. 9). It will be housed in this condition. The details will be described later (see FIG. 9).

In this embodiment, the outer shape of the fitting portion 14 is a truncated cone shape, but the outer shape is not particularly limited. The outer shape of the fitting portion 14 may be, for example, a cylindrical shape. In addition, the outer shape of the fitting portion 14 may be, for example, a shape corresponding to the inner surface of the concha CA. Therefore, the annular side wall portion 15 in the fitting portion 14 is not limited to the tapered tube shape of this embodiment. The annular side wall portion 15 may be a cylindrical shape having uniform inner and outer diameters regardless of the position in the central axis direction. However, it is preferable that the outer surface of the annular side wall portion 15 has a tapered shape that tapers from the lower end opposite to the upper end where the top plate portion 16 is connected to the upper end where the top plate portion 16 is connected, as in this embodiment. In this way, it becomes easier to fit the fitting portion 14 into the concha CA. In addition, the cross-sectional outer shape of the annular side wall portion 15 perpendicular to the height direction A does not have to be circular, and the cross-sectional outer shape may be an endless shape corresponding to the inner surface of the concha CA. Furthermore, the top plate 16 of this embodiment is configured with a circular flat plate portion that closes the upper end of the tapered cylindrical annular side wall portion 15, but is not limited to this configuration. The top plate portion 16 is preferably configured so that the area of the bottom contact surface 16a in contact with the bottom surface of the concha CA can be increased. Therefore, the top plate portion 16 may be configured, for example, with a curved plate portion curved in a dome shape so that the bottom contact surface 16a is a convex surface. Furthermore, the internal space 15a of this embodiment is a space having an approximately truncated cone shape, but the shape of the internal space 15a is not particularly limited. The internal space 15a of this embodiment may be configured so that a part of the thermal body 2 can be accommodated therein and the auricle AU can be heated through the fitting portion 14. In this embodiment, the main body portion 2a of the thermal body 2 is accommodated in the internal space 15a, and is covered by the annular side wall portion 15 and the top plate portion 16.

<Insertion section 12>
As shown in FIGS. 5, 6, etc., the insertion portion 12 protrudes from the fitting portion 14. As shown in FIGS. The insertion portion 12 is configured to be insertable into the external ear canal EA (see FIG. 3) together with the attached cover member 3. Specifically, the insertion portion 12 of this embodiment protrudes outward from the fitting portion 14 in a plan view when viewed in the height direction A of the fitting portion 14 (see FIG. 5(a)). More specifically, the insertion portion 12 of this embodiment is provided to protrude from the annular side wall portion 15 of the fitting portion 14 to the outside of the annular side wall portion 15 in the radial direction B. Hereinafter, for convenience of explanation, the radial direction B of the annular side wall portion 15 may be simply referred to as "radial direction B."

The insertion portion 12 of this embodiment includes a base end 12a that is connected to the annular side wall 15, and a distal end 12b that is connected to the base end 12a and is inserted into the mounting cylinder 3a (see FIG. 9) of the cover member 3. and. The tip portion 12b has a substantially cylindrical outer shape. The central axis direction C, which is the extending direction of the tip portion 12b, is inclined with respect to the height direction A of the fitting portion 14. The tip portion 12b can be inserted into the mounting tube portion 3a of the cover member 3 so as to push the attachment tube portion 3a outward in the radial direction. Thereby, the outer surface of the tip portion 12b comes into close contact with the inner surface of the mounting cylinder portion 3a. As a result, the cover member 3 is held by the insertion portion 12 of the ear fitting 4. Furthermore, in addition to the close contact between the exterior cylindrical portion 3b and the inner surface of the external ear canal EA, the close contact between the outer surface of the distal end portion 12b and the inner surface of the mounting tube portion 3a allows the outer ear canal EA to be further closed, and the sound insulation by the heating tool 100 is improved. can be further increased.

Further, the distal end portion 12b of this embodiment includes an annular convex portion 12b1 that protrudes radially outward. When the distal end portion 12b of the insertion portion 12 is inserted into the mounting tube portion 3a of the cover member 3, the annular convex portion 12b1 of the distal end portion 12b is inserted into the annular recess portion 3a1 (see FIG. 9) provided on the inner surface of the attachment tube portion 3a. ). This makes it difficult for the mounting cylinder portion 3a to come off from the tip portion 12b. Therefore, the retention of the cover member 3 by the insertion portion 12 can be improved.

The insertion portion 12 of this embodiment is formed separately from the cover member 3 so that the above-described cover member 3 can be attached thereto, but it may be formed integrally therewith. Therefore, the distal end portion 12b of the insertion portion 12 of this embodiment may be formed so as to be continuous with the mounting cylinder portion 3a of the cover member 3, for example.

Moreover, although the ear fitting 4 of this embodiment is provided with the insertion part 12, it is not limited to this structure. The ear fitting 4 of this embodiment is configured to be fixed to the ear by coming into close contact with the inner surface of the external ear canal EA, but for example, if the ear fitting 4 is fixed only to the auricle AU, the ear The mounting tool 4 does not need to include the insertion section 12. However, from the viewpoint of a relaxing effect due to sound insulation, it is preferable that the heating tool 100 includes an insertion portion 12 that can be inserted into the external ear canal EA. Moreover, it is preferable that the heating tool 100 further includes a cover member 3 attached to the insertion portion 12 in order to improve the adhesion to the inner surface of the external ear canal EA. By doing so, the relaxing effect of sound insulation can be further enhanced. In addition, although the insertion part 12 of this embodiment is formed integrally with the fitting part 14, it may be formed separately from the fitting part 14 and detachably attached to the fitting part 14.

<Holding part 13>
The holding part 13 can hold the heating body 2 that heats a predetermined part of the auricle AU through the fitting part 14 as the contact part 11. In other words, the heating body 2 held by the holding part 13 of this embodiment can heat the inner surface of the concha CA, which is a predetermined part of the auricle AU, through the fitting part 14.

Further, although details will be described later, the holding portion 13 is capable of holding the heating body 2 in a state separated from the fitting portion 14 by a gap X (see FIG. 9). By doing so, compared to a configuration in which there is no gap X and the fitting part 14 and the heating body 2 are in contact with each other, a rapid temperature rise in the fitting part 14 due to the heating body 2 can be suppressed. Therefore, it is possible to suppress burns on the inner surface of the concha CA of the auricle AU that comes into contact with the fitting part 14.

As shown in FIG. 5(b), the holding part 13 of this embodiment includes a support part 18 that supports the heating element 2 from below, and a support part 18 that supports the heating element 2 from below and prevents the heating element 2 from moving in a direction perpendicular to the height direction A. A regulating wall portion 19 is provided.

More specifically, as shown in FIGS. 6 to 8, the support portion 18 of this embodiment has a flat plate shape extending in a direction perpendicular to the height direction A below the lower end of the fitting portion 14. and a support protrusion 18b that protrudes inward in the radial direction B from the regulating wall 19. The held portion 2b of the heating body 2 is supported from below by the support plate portion 18a and the support projection portion 18b, with the main body portion 2a housed in the internal space 15a. Therefore, the support plate portion 18a and the support projection portion 18b are provided at positions that do not overlap with the internal space 15a in the height direction A. More specifically, the support plate part 18a and the support protrusion part 18b of the support part 18 of this embodiment are provided at a position outside the internal space 15a in the radial direction B.

Further, the regulating wall portion 19 is continuous with the outer side of the support portion 18 in the radial direction B, and extends toward the upper side in the height direction A. More specifically, as shown in FIGS. 6 to 8, the regulating wall portion 19 of this embodiment is continuous with the outer side of the support plate portion 18a in the radial direction B and extends upward in the height direction A. It includes a first regulating wall portion 19a and a second regulating wall portion 19b that is connected to the outside of the support protrusion 18b in the radial direction B and extends upward in the height direction A. In a state where the held part 2b of the heating body 2 is supported from below by the support plate part 18a and the support protrusion 18b, the first regulation wall part 19a and the second regulation wall part 19b are fixed to the held part 2b. Located on the outside in the radial direction B. Therefore, in a state where the main body portion 2a is accommodated in the internal space 15a and the held portion 2b is supported from below by the support plate portion 18a and the support projection portion 18b, the held portion 2b of the heating body 2 is Movement in a direction perpendicular to the height direction A is restricted by the first restriction wall portion 19a and the second restriction wall portion 19b.

As described above, the holding part 13 of the present embodiment is provided with the supporting part 18 and the regulating wall part 19 so that the held part 2b of the heating element 2 is located below the height direction A and perpendicularly to the height direction A. The heating body 2 can be held by restricting movement in the direction. Note that upward movement of the held portion 2b of the heating body 2 in the height direction A is regulated by the lower end of the fitting portion 14 described above. In particular, in the ear fitting 4 of this embodiment, the collar protrudes outward in the radial direction B from the open end, which is the lower end of the above-mentioned fitting part 14, and connects the fitting part 14 and the second regulating wall part 19b of the holding part 13. A connecting collar portion 20 is provided as a portion. In this embodiment, the connecting collar portion 20, together with the lower end of the fitting portion 14, restricts the movement of the held portion 2b of the heating body 2 in the upper direction A in height. However, the ear fitting 4 only needs to have a part that connects the fitting part 14 and the holding part 13, and its configuration is not limited to the connecting collar part 20 of this embodiment. Therefore, the upward movement of the held portion 2b of the heating body 2 in the height direction A only needs to be restricted by the lower end of the fitting portion 14 described above, and restriction by the connecting collar portion 20 is not essential.

In the ear fitting 4 of this embodiment, the fitting portion 14 is connected to the second regulating wall portion 19b via the connecting collar portion 20. A support protrusion 18b projects inward in the radial direction B from the second regulating wall 19b. Further, the second regulating wall portion 19b is continuous with the support plate portion 18a. A first regulating wall portion 19a is continuous with the outer edge of the support plate portion 18a. In this way, in the ear fitting 4 of this embodiment, the fitting part 14 and the holding part 13 are connected via the connecting collar part 20. In this embodiment, the fitting part 14 and the holding part 13 are formed integrally through the connecting collar part 20, but at least one of the holding part 13, the fitting part 14, and the connecting collar part 20 is formed separately. , may be joined by adhesion, welding, or the like.

As shown in FIG. 6, the support plate portion 18a of this embodiment faces the lower surface, which is the lower surface of the proximal end portion 12a of the insertion portion 12, with a gap in the height direction A. . The held portion 2b of the heating body 2 can be inserted between the lower surface of the base end portion 12a of the insertion portion 12 and the upper surface of the support plate portion 18a from the inside to the outside in the radial direction B. Note that, as shown in FIG. 6, the first regulating wall portion 19a extends upward from the outer edge of the support plate portion 18a on the outside in the radial direction B, and is connected to the base end portion 12a of the insertion portion 12.

<Connection flange 20>
As described above, the ear fitting 4 of this embodiment includes the contact portion 11, the insertion portion 12, and the holding portion 13, as well as the connecting flange portion 20 as a flange portion. The connecting collar portion 20 of this embodiment continues to the fitting portion 14 as the contact portion 11 . More specifically, the connecting collar portion 20 of this embodiment protrudes outward in the radial direction B from the lower end of the fitting portion 14, and connects the fitting portion 14 and the second regulating wall portion 19b of the holding portion 13. Note that, as shown in FIG. 5(a) etc., the outer edge of the connecting collar portion 20 is connected to the second regulating wall portion 19b of the regulating wall portion 19 that covers the periphery of the held portion 2b of the heating body 2 in the housed state ( In addition to the wall connecting end portion 20b that is continuous to the second regulating wall portion 19b of the regulating wall portion 19, a free end portion 20a that is not continuous to the second regulating wall portion 19b of the regulating wall portion 19 is provided. Further, the length L1 of the connecting collar 20 in the radial direction B at the position of the free end 20a is shorter than the length L2 in the radial direction B of the connecting collar 20 at the position of the wall connecting end 20b. As shown in FIG. 5(b), FIG. 6, and FIG. 7, a ventilation groove 21 is formed on the lower surface of the connecting collar portion 20, extending from the position of the free end portion 20a to the internal space 15a. Therefore, in the present embodiment, the ventilation groove 21 creates a ventilation passage 30 that extends from the position of the free end 20a of the connecting collar portion 20 to the recess provided at the open end, which is the lower end of the fitting portion 14, and communicates with the internal space 15a. It is sectioned. Therefore, even if the held part 2b of the heating element 2 comes into contact with the open end of the fitting part 14 and the connecting flange part 20 when the main body part 2a of the heating element 2 is housed in the internal space 15a. , air can be taken into the internal space 15a through the ventilation grooves 21. Therefore, even if the main body portion 2a containing the exothermic composition 5 (see FIG. 4) that generates heat upon contact with air is housed in the internal space 15a, air can be taken into the internal space 15a through the ventilation grooves 21. , can generate heat. In addition, in the ear fitting 4 of this embodiment, the ventilation path 30 is divided by the ventilation groove 21, but the ventilation path 30 is not limited to the configuration of this embodiment.

Further, as shown in FIG. 5(a), the connecting collar portion 20 of the present embodiment is arranged in the circumferential direction D of the fitting portion 14 (in this embodiment, the same direction as the circumferential direction of the annular side wall portion 15, hereinafter simply referred to as (referred to as the "circumferential direction D"), they are not provided at positions on both sides of the insertion portion 12. Therefore, the ear fitting 4 of this embodiment is configured such that the upper surface of the support plate portion 18a is visible when viewed from above as shown in FIG. 5(a). In the heating body 2 of this embodiment, the held portion 2b is inserted from the inside to the outside in the radial direction B between the lower surface of the base end portion 12a of the insertion portion 12 and the upper surface of the support plate portion 18a. , attached to the ear fitting 4. Therefore, since the connecting flange portions 20 are not provided on both sides of the insertion portion 12 in the circumferential direction D, the held portion 2b of the heating element 2 is connected to the lower surface of the base end portion 12a of the insertion portion 12 and the support plate portion 18a. It is possible to visually check from the outside whether or not it is properly inserted between the top surface and the top surface.

The ear fitting 4 of the present embodiment includes a connecting collar portion 20 that projects outward in the radial direction B from the open end, which is the lower end of the fitting portion 14, in order to connect the fitting portion 14 and the holding portion 13. As long as the fitting part 14 and the holding part 13 are connected, the structure is not limited to the structure of the connecting collar part 20 of this embodiment. However, as in the present embodiment, it is preferable to use the connecting collar portion 20 having a lower surface that is located at the same position in the height direction A as the lower end of the fitting portion 14. By doing so, the flange-shaped held portion 2b of the heating body 2 moves so as to be inclined with respect to the height direction A while the main body portion 2a of the heating body 2 is housed in the internal space 15a. can be suppressed. As a result, the main body portion 2a of the heating body 2 becomes difficult to come off from the internal space 15a. Therefore, the positional stability of the heating body 2 in a state where the held portion 2b of the heating body 2 is held by the holding portion 13 can be further improved.

Note that the material constituting the ear fitting 4 is not particularly limited, and examples thereof include rubber, elastomer, synthetic resin including soft resin, and hard resin. More specific examples include polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET), and elastomers. In terms of efficiently transmitting the heat of the heating body 2 to the auricle AU (see FIG. 3), the material constituting the ear fitting 4 may be a material with high thermal conductivity. Examples of such materials include those whose thermal conductivity is increased by mixing a material with high thermal conductivity such as metal or carbon with a base material such as rubber, elastomer, or synthetic resin. Alternatively, a thermally conductive resin with high thermal conductivity may be used.

[Dividing screen 50 that partitions the accommodation space 40 that accommodates the heating body 2 of the ear fitting 4]
Next, the accommodation space 40 that can accommodate the heating body 2 that is partitioned by the ear fitting 4 and the division surface 50 of the ear fitting 4 that partitions this accommodation space 40 will be described. FIG. 9 is a sectional view of the heating device 100 in use, with the heating body 2 and cover member 3 attached to the ear fitting 4. As shown in FIG. FIG. 9 shows a cross section at the same position as the line II in FIG. 5 when the heating body 2 and cover member 3 are attached to the ear fitting 4. Moreover, FIG. 10 is a cross-sectional view at the same position as FIG. 9, showing a state in the middle of attaching the heating body 2 to the ear fitting 4.

First, details of the state in which the heating body 2 is held by the ear fitting 4 shown in FIG. 9 will be explained. As shown in FIG. 9, the holding part 13 of this embodiment can hold the heating body 2 that heats the inner surface of the concha CA (see FIG. 3) of the auricle AU (see FIG. 3) through the fitting part 14. It is. In this embodiment, as described above, when the main body 2a of the heating body 2 is housed in the internal space 15a, the support part 18 and the regulating wall 19 of the holding part 13 are connected to the held part of the heating body 2. Hold 2b.

The holding portion 13 limits the movement of the heating body 2 relative to the ear fitting 4 within a predetermined range so that the heating body 2 does not separate from the ear fitting 4. That is, the configuration of the holding part 13 is not limited to a configuration in which the heating body 2 is held so that it does not move at all with respect to the ear fitting 4.

Specifically, as shown in FIG. 9, the holding part 13 of this embodiment holds the held part 2b of the heating body 2 so as to be movable within a predetermined range in the height direction A. Specifically, in the holding part 13 of the present embodiment, from a position where the lower surface of the held part 2b contacts and is supported by the support plate part 18a and the support protrusion part 18b, to a position where the upper surface of the held part 2b is supported by the fitting part 14, The heating element 2 is held so as to be movable in the height direction A up to a position where it contacts the lower end of the connecting flange 20 and the lower surface of the connecting flange 20 . In addition, in FIG. 9, the uppermost holding position of the heating element 2 is shown, where the upper surface of the held part 2b of the heating element 2 is in contact with the open end, which is the lower end of the fitting part 14, and the lower surface of the connecting collar part 20. It shows.

Furthermore, as shown in FIG. 9, the holding part 13 of this embodiment holds the held part 2b of the heating body 2 in a state where it cannot move in a direction perpendicular to the height direction A. Specifically, in this embodiment, the first regulating wall section 19a and the second regulating wall section 19b of the regulating wall section 19 are arranged around the held portion 2b of the heating body 2 in a direction orthogonal to the height direction A. is located. Therefore, the first regulating wall section 19a and the second regulating wall section 19b of the regulating wall section 19 contact the outer edge of the held portion 2b of the heating element 2, thereby preventing the heating element from moving in the direction perpendicular to the height direction A. The movement of 2 is restricted. However, as described above, the holding part 13 may hold the held part 2b of the heating body 2 movably within a predetermined range in a direction orthogonal to the height direction A.

9, the holding part 13 may hold the thermal body 2 in a state separated from the fitting part 14 by a gap X. When the holding part 13 holds the thermal body 2 movably within a predetermined range as in this embodiment, the thermal body 2 at any position within the predetermined movable range may be separated from the fitting part 14 by a gap X. For example, FIG. 9 shows the state in which the thermal body 2 is at the uppermost holding position, but even in this state, the main body part 2a of the thermal body 2 in this embodiment maintains a state separated from the annular side wall part 15 and the top plate part 16 of the fitting part 14 by a gap X. In this way, a sudden temperature rise of the fitting part 14 by the thermal body 2 can be suppressed, and burns can be suppressed on the inner surface of the concha CA of the auricle AU with which the fitting part 14 comes into contact.

Further, in the holding part 13 of the present embodiment, the heating body 2 is moved from the top plate bottom surface 17b side, which is the back side of the top plate top surface 17a, which is the bottom contact surface 16a of the top plate part 16, to the internal space inside the annular side wall part 15. The heating element 2 is held in a state housed in the heating element 15a. By configuring the holding part 13 to hold the heating element 2 housed in the internal space 15a in the annular side wall part 15 as described above, the heating element 2 can be easily attached to the ear fitting 4. I can do it.

More specifically, as shown in FIG. 9, in the holding part 13 of the present embodiment, the main body part 2a of the heating body 2 moves from the top plate lower surface 17b side of the top plate part 16 to the internal space inside the annular side wall part 15. The held portion 2b protruding from the main body portion 2a of the heating body 2 is held in a state housed in the heating body 15a. By doing so, the heating body 2 can be easily attached to the ear fitting 4 as described above. Furthermore, the held portion 2b of the heating element 2 comes into contact with the lower end of the annular side wall portion 15, which is the lower end of the fitting portion 14, so that the amount of pushing of the main body portion 2a into the annular side wall portion 15 can be regulated. . Thereby, the gap X can be easily secured between the main body part 2a of the heating body 2 and the top plate part 16.

In addition, as shown in FIG. 10, in the heating tool 100 of this embodiment, the flange portion as the held portion 2b of the heating body 2 is placed in the gap between the support plate portion 18a and the insertion portion 12 in the radial direction B. The main body portion 2a of the heating body 2 is accommodated in the internal space 15a inside the annular side wall portion 15 from the lower end side of the annular side wall portion 15 while being inserted from the inside toward the outside. The main body portion 2a is accommodated in the annular side wall portion 15 so that the portion of the held portion 2b of the heating element 2 other than the portion inserted into the gap between the support plate portion 18a and the insertion portion 12 is accommodated in the support projection portion 18b. , that is, when the held part 2b is held by the holding part 13, the process is completed.

Further, as shown in FIG. 9, the holding part 13 of this embodiment holds the heating element 2 in a state where the main body part 2a of the heating element 2 is covered with the fitting part 14. In this way, since the fitting part 14 covers the main body part 2a of the heating element 2, the heat generated in the main body part 2a is not consumed for heating the fitting part 14, but is radiated wastefully. can be suppressed.

In addition, it is preferable that the fitting part 14 covers at least the surface of the heating part of the heating body 2 that heats the fitting part 14 . Therefore, like the fitting part 14 of this embodiment, the surface of the main body part 2a as a heating part that heats the fitting part 14 of the heating body 2 is covered, and the held part 2b which is not a heating part The structure may be such that it does not cover the surface.

Next, details of the accommodation space 40 that accommodates the heating body 2 in the ear fitting 4 will be described with reference to FIGS. 6 to 9. As shown in FIG. 9, the accommodation space 40 means a space in which the heating element 2 is located when the heating element 2 is attached to the ear fitting 4. The "space in which the heating element 2 is located" as used herein refers to the range within which the heating element 2 can move, if the heating element 2 is held movably within a predetermined range relative to the ear fitting 4 as in the present embodiment. means a space that includes

More specifically, the accommodation space 40 of this embodiment includes an internal space 15a of the fitting part 14 that can accommodate the main body part 2a of the heating element 2. Moreover, the accommodation space 40 of this embodiment includes a space on the inside in the radial direction B with respect to the first regulation wall part 19a and the second regulation wall part 19b, which can accommodate the held part 2b of the heating body 2. Furthermore, the accommodation space 40 of this embodiment is above the support plate part 18a and the support protrusion part 18b of the support part 18 in the height direction A, and can accommodate the held part 2b of the heating element 2. , the lower end of the fitting portion 14, the lower surface of the insertion portion 12, and the space below the lower surface of the connecting collar portion 20.

Next, the partition surface 50 of the ear wearing device 4 that divides the storage space 40 will be described in detail. As shown in Figures 6 to 9, the partition surface 50 has a hat-shaped surface 51, a brim-facing surface 52, and a surrounding surface 53.

The hat-shaped surface 51 includes a concave surface 51a formed on the back side of the contact surface that contacts the auricle AU, and a collar surface 51b extending from the open end 51a1 of the concave surface 51a. In this embodiment, the contact surface that contacts the auricle AU is, for example, the top plate upper surface 17a as the bottom contact surface 16a of the fitting part 14. Further, the concave surface 51a of this embodiment is a surface that partitions the internal space 15a of the fitting portion 14. More specifically, the concave surface 51a of this embodiment is constituted by the inner surface 15b of the annular side wall portion 15 and the top plate lower surface 17b of the top plate portion 16. Further, the collar surface 51b of this embodiment is configured by the lower surface 12a1 of the insertion portion 12 and the lower surface 20c of the connecting collar portion 20.

The flange-facing surface 52 is disposed opposite a specific portion 60, which is a part of the flange surface 51b, across a gap in the axial direction of the concave surface 51a. The "axial direction of the concave surface 51a" refers to a direction perpendicular to a plane including the open end 51a1 of the concave surface 51a. In other words, the axial direction of the concave surface 51a in this embodiment is the same as the height direction A of the fitting portion 14. Hereinafter, for ease of explanation, the axial direction of the concave surface 51a will be simply referred to as the "height direction A."

Moreover, a part of the heating body 2 can be inserted between the predetermined portion 60 of the flange surface 51b and the flange facing surface 52 from the inner side to the outer side in the radial direction of the concave surface 51a. "The radial direction of the concave surface 51a" means the radial direction of the circle formed by the open end 51a1 of the concave surface 51a. That is, the radial direction of the concave surface 51a of this embodiment is the same direction as the radial direction B of the annular side wall portion 15. Hereinafter, for convenience of explanation, the radial direction of the concave surface 51a will be simply referred to as "radial direction B."

The collar facing surface 52 of this embodiment is the upper surface 18a1 of the support plate portion 18a. Therefore, the predetermined portion 60 that is a part of the collar surface 51b of this embodiment is the lower surface 12a1 of the insertion portion 12.

Here, the predetermined portion 60 of the flange surface 51b is a portion 60a located outside in the radial direction B than the inner end in the radial direction B and closer to the bottom side of the concave surface 51a in the height direction A than the open end 51a1 of the concave surface 51a. Be prepared. More specifically, the lower surface 12a1 of the insertion portion 12 as the predetermined portion 60 of the collar surface 51b is located on the outer side in the radial direction B than the inner end in the radial direction B and in the height direction A than the open end 51a1 of the concave surface 51a. It includes a portion 60a located on the upper side. The inner end in the radial direction B of the lower surface 12a1 of the insertion portion 12 of this embodiment is the open end 51a1 of the concave surface 51a. Further, the lower surface 12a1 of the insertion portion 12 of the present embodiment is constituted by an inclined surface that slopes upward in the height direction A from the inside to the outside in the radial direction B. That is, the lower surface 12a1 of the insertion portion 12 of the present embodiment is an inclined surface having a portion 60a located outside the opening end 51a1 of the concave surface 51a, which is the inner end, in the radial direction B and above the opening end 51a1 in the height direction A. It is.

In this way, the specific portion 60 of the flange surface 51b facing the flange opposing surface 52 has a portion 60a located outside the inner end in the radial direction B and above the opening end 51a1 of the concave surface 51a in the height direction A. Even if the gap between the flange opposing surface 52 and the specific portion 60 of the flange surface 51b is narrowed, a part of the heating body 2 (the retained portion 2b in this embodiment) can be inserted into this gap, while another part or the entire remaining part of the heating body 2 (the main body portion 2a, which is the other part in this embodiment) can be accommodated in the internal space 15a partitioned by the concave surface 51a.

More specifically, as shown in FIG. 10, by providing the predetermined portion 60 with the above-mentioned portion 60a, the heating body 2 is placed in an inclined state with respect to the height direction A (the state shown in FIG. 10), and the heating body 2 is heated. A part of the body 2 (in this embodiment, the held portion 2b) can be inserted into the gap between the collar facing surface 52 and the predetermined portion 60 of the collar surface 51b. Therefore, another part or the entire remaining part of the heating body 2 (in this embodiment, the main body part 2a, which is another part) is also inclined with respect to the height direction A and is retracted below the internal space 15a. In this state, it can be moved to a position directly below the internal space 15a. Therefore, even if the gap between the flange facing surface 52 and the predetermined portion 60 of the flange surface 51b is narrowed, the heating body 2 can be narrowed between the gap between the flange facing surface 52 and the predetermined portion 60 of the flange surface 51b, and It can be easily accommodated so as to span both of the internal spaces 15a. That is, since the predetermined portion 60 includes the portion 60a, the heating body 2 can be easily attached to the ear fitting 4. In addition, when removing the heating body 2 from the ear fitting 4, the heating body 2 can be easily removed from the ear fitting 4 by performing the above-mentioned attachment operation in reverse.

By narrowing the gap between the flange facing surface 52 and the predetermined portion 60 of the flange surface 51b, the movable range of the heating body 2 accommodated in the accommodation space 40 can be reduced. Therefore, it becomes easier to maintain the distance between the heating body 2 and the concave surface 51a within a desired range. This makes it easier for the heating body 2 to heat the contact surfaces, such as the bottom contact surface 16a, which is located on the opposite side of the concave surface 51a and contacts the auricle AU, to a desired temperature through the concave surface 51a.

That is, by providing the predetermined portion 60 with the above-mentioned portion 60a, the auricle AU can be efficiently heated by the heating body 2, and the detachability of the heating body 2 can be improved.

In the predetermined portion 60, the specific shape of the portion 60a located above the open end 51a1 of the concave surface 51a is not particularly limited. The portion 60a of the predetermined portion 60 may be configured, for example, as a concave surface recessed upward. However, as in this embodiment, the predetermined portion 60 of the collar surface 51b has an inclination that slopes toward the bottom side (in this embodiment, the upper side) of the concave surface 51a in the height direction A as it goes from the inside to the outside in the radial direction B. Preferably, it has a surface. Furthermore, it is preferable that the above-mentioned portion 60a is constituted by this inclined surface. By doing so, a part of the heating body 2 (held part 2b in this embodiment) inserted between the predetermined part 60 of the collar surface 51b and the collar facing surface 52 is 60a can prevent it from getting caught, making it easier to insert it to an appropriate position.

Furthermore, as shown in FIG. 9, in this embodiment, the length L3 in the radial direction B of the predetermined portion 60 of the collar surface 51b is longer than the length L3 in the radial direction B of the held portion 2b of the heating body 2 attached to the ear fitting 4. The length is L4 or less. The predetermined portion 60 is formed of the above-mentioned inclined surface in the entire area in the radial direction B. That is, the above-mentioned portion 60a of the predetermined portion 60 is also constituted by the above-mentioned inclined surface. By doing so, the held portion 2b of the heating body 2 inserted between the predetermined portion 60 of the collar surface 51b and the collar facing surface 52 is less likely to be caught over the entire radial direction B of the predetermined portion 60. .

In this embodiment, the length L1 in the radial direction B (see FIGS. 5 and 6) at the position of the free end 20a of the connecting flange 20 is equal to the length L1 in the radial direction of the held portion 2b of the heating body 2. The length of B is smaller than L4. Therefore, as shown in FIGS. 2 and 9, when the heating body 2 is attached to the ear fitting 4, the held portion 2b is exposed outward in the radial direction B from the free end portion 20a. Therefore, when removing the heating body 2 from the ear fitting 4, it is only necessary to grasp and operate the portion of the held portion 2b of the heating body 2 that is exposed from the free end portion 20a. By doing so, the heating body 2 can be easily removed from the ear fitting 4.

Further, as shown in FIGS. 6 to 9, the flange facing surface 52 is located only on the side opposite to the bottom side of the concave surface 51a in the height direction A from the opening end 51a1 of the concave surface 51a. That is, the collar facing surface 52 is located only below the opening end 51a1 of the concave surface 51a in the height direction A. By doing this, in a state where the heating body 2 is inclined with respect to the height direction A (see FIG. 10), a part of the heating body 2 (in this embodiment, the held part 2b) is held on the flange surface 51b. After being inserted between the predetermined portion 60 and the collar facing surface 52, the heating body 2 can be moved to a state where it is not inclined with respect to the height direction A (see FIG. 9). Thereby, another part of the heating body 2 (main body part 2a in this embodiment) can be accommodated in the internal space 15a defined by the concave surface 51a. In this embodiment, by moving the heating body 2 to a state where it is not inclined with respect to the height direction A (see FIG. 9), the held portion 2b of the heating body 2 climbs over the support protrusion 18b. This completes the attachment of the heating body 2 using the ear fitting 4. In this embodiment, "a state in which the heating body 2 is inclined with respect to the height direction A" means that the in-plane direction of the held portion 2b of the heating body 2 is in the height direction A and the height direction It means a state of inclination with respect to the direction perpendicular to A. In addition, in the present embodiment, "a state in which the heating body 2 is not inclined with respect to the height direction A" means that the in-plane direction of the held portion 2b of the heating body 2 is parallel to the direction orthogonal to the height direction A. means a state of

Although the concave surface 51a of the hat-shaped surface 51 in this embodiment is configured by the fitting portion 14, it is not limited to this configuration. The concave surface 51a may be the back side of the contact surface that contacts a predetermined portion of the auricle AU to be heated. However, as in the present embodiment, it is preferable that the contact surface and the concave surface 51a are formed by the surface of the fitting part 14 that can be fitted into the concha CA. Specifically, the contact surface of this embodiment is constituted by the top plate upper surface 17a (bottom contact surface 16a), which is the surface of the fitting part 14, and the outer surface (side contact surface) of the annular side wall section 15. . Further, the concave surface 51a of this embodiment is constituted by the top plate lower surface 17b and the inner surface 15b of the annular side wall portion 15, which serve as the surface of the fitting portion 14. By doing so, the inner surface of the concha CA can be easily heated by the heating body 2. By heating the inner surface of the concha CA, the relaxing effect can be enhanced as described above.

Further, in this embodiment, a predetermined portion 60 of the brim surface 51b of the hat-shaped surface 51 that faces the brim facing surface 52 is configured by the lower surface 12a1, which is the lower surface of the insertion portion 12. However, the predetermined portion 60 of the collar surface 51b may be configured by a portion of the ear fitting 4 that is different from the insertion portion 12. However, it is preferable that the predetermined portion 60 of the collar surface 51b is constituted by the surface of the insertion portion 12 as in this embodiment. The insertion portion 12 can improve fixation to the ear and sound insulation, and can also be easily used as a position where the portion 60a of the predetermined portion 60 is provided. Therefore, it is not necessary to provide the predetermined part 60 as a separate part from the insertion part 12, and the configuration of the ear fitting 4 can be simplified.

Note that, in addition to the hat-shaped surface 51 and the collar facing surface 52 described above, the dividing surface 50 of the present embodiment includes a surrounding surface 53 located on the outside of the held portion 2b of the heating body 2 in the radial direction B. The surrounding surface 53 is a surface extending downward in the height direction A from the outer edge of the brim surface 51b of the hat-shaped surface 51. A part of the surrounding surface 53 is connected to the outer end of the collar facing surface 52 in the radial direction B at the lower end in the height direction A. That is, a part of this surrounding surface 53 connects the flange surface 51b and the flange facing surface 52, and is located on the outside in the radial direction B of the gap between the flange surface 51b and the flange facing surface 52 in the height direction A. This is a connecting wall surface 53a. As shown in FIG. 10, by providing such a connecting wall surface 53a, a part of the heating body 2 (in this embodiment, the held portion 2b) is connected to the brim surface 51b of the hat-shaped surface 51 and the brim facing surface 52. When the heating element 2 is inserted from the inside to the outside in the radial direction B, the insertion amount of a part of the heating element 2 can be regulated. That is, when attaching the heating body 2 to the ear fitting 4, a part of the heating body 2 may be inserted between the collar surface 51b and the collar facing surface 52 until it comes into contact with the connecting wall surface 53a. After that, another part of the heating element 2 (main body part 2a in this embodiment) can be accommodated in the internal space 15a only by changing the inclination of the heating element 2 with respect to the height direction A. That is, by providing the connecting wall surface 53a, it is possible to improve the operability when attaching the heating body 2 to the ear fitting 4.

The connecting wall surface 53a of this embodiment is configured by a surface extending substantially parallel to the height direction A in a cross-sectional view along the height direction A (see FIG. 9, etc.), but is not limited to this configuration. The connecting wall surface 53a may be, for example, a surface that extends obliquely in the height direction A when viewed in the same cross-section, or may be a surface that is recessed outward in the radial direction B when viewed in the same cross-section.

The surrounding surface 53 of this embodiment is constituted by an inner surface in the radial direction B of the first regulating wall portion 19a and an inner surface in the radial direction B of the second regulating wall portion 19b. However, the portion that constitutes the surrounding surface 53 is not particularly limited.

The ear fitting and heating device according to the present invention are not limited to the specific configurations shown in the embodiments described above, and various modifications and changes can be made without departing from the scope of the claims. For example, the above-described brim surface 51b is not limited to a configuration in which it protrudes outward in the radial direction B from the entire area around the open end 51a1 of the concave surface 51a. That is, the flange surface 51b may be configured to protrude outward in the radial direction B from only a portion of the periphery of the open end 51a1 of the concave surface 51a.

2: Heating body 2a: Main body part 2b: Holding part 3: Cover member 3a: Mounting cylinder part 3a1: Annular recess 3b: Exterior cylinder part 4: Ear fitting 5: Heat generating composition 6: Container body 6a: First sheet 6b: Second sheet 11: Contact part 12: Insertion part 12a: Base end part 12a1: Lower surface 12b of insertion part: Tip part 12b1: Annular convex part 13: Holding part 14: Fitting part 15: Annular side wall part 15a: Internal space 15b: Inner surface of annular side wall portion 16: Top plate portion 16a: Bottom contact surface (contact surface)
17a: Top plate upper surface 17b: Top plate lower surface 18: Support part 18a: Support plate part 18a1: Upper surface 18b of support plate part: Support protrusion 19: Regulation wall part 19a: First regulation wall part 19b: Second regulation wall part 20: Connecting flange 20a: Free end 20b: Wall connecting end 20c: Lower surface 21 of the connecting flange: Ventilation groove 30: Ventilation path 40: Accommodation space 50: Division surface 51 that divides the accommodation space: Hat-shaped surface 51a : Concave surface 51a1: Concave opening end 51b: Flange surface 52: Flange opposing surface 53: Surrounding surface 53a: Connecting wall surface 60: Predetermined portion 60a of the collar surface: Predetermined portion 100: Heating tool L1: Free end of the connecting collar portion radial length L2 at the position of the connecting flange: radial length L3 at the wall connecting end of the connecting flange: radial length L4 of a predetermined portion of the flange surface: attached to the ear fitting Length in the radial direction of the held part of the heating element
B: Radial direction of the annular side wall of the fitting part (hat radial direction)
C: Central axis direction of insertion part D: Circumferential direction of fitting part

Claims (7)

An ear fitting that can be worn on the ear,
A storage space that can accommodate a heating element is divided,
The partition surface that partitions the accommodation space is
A concave surface formed on the back side of the contact surface that contacts the auricle,
a collar surface extending from the open end of the concave surface;
comprising a predetermined portion that is a part of the flange surface and a flange facing surface that is arranged to face each other across a gap in the axial direction of the concave surface;
A part of the heating body can be inserted between the predetermined portion of the collar surface and the collar opposing surface from the inside to the outside in the radial direction of the concave surface,
The predetermined portion of the collar surface includes a portion that is located outside the radial inner end in the radial direction and closer to the bottom of the concave surface in the axial direction than the open end of the concave surface. . The ear fitting according to claim 1, wherein the brim-facing surface is located only on the side opposite to the bottom side of the concave surface in the axial direction from the open end of the concave surface. The predetermined portion of the collar surface includes an inclined surface that is inclined toward the bottom side of the concave surface in the axial direction from the inner side to the outer side in the radial direction,
The ear fitting according to claim 1 or 2, wherein the portion in the predetermined portion of the collar surface is constituted by the inclined surface. Claims 1 to 3, wherein the dividing surface includes a connecting wall surface that connects the collar surface and the collar opposing surface and is located on the outside of the gap in the radial direction between the collar surface and the collar opposing surface. Ear fittings according to any one of the above. comprising a fitting part that can be fitted into the concha of the auricle,
The ear fitting according to any one of claims 1 to 4, wherein the contact surface and the concave surface are formed by a surface of the fitting part. an insertion portion protruding from the fitting portion and insertable into an ear canal;
The ear wearing device according to claim 5 , wherein the predetermined portion of the flange surface is formed by a surface of the insertion portion. A heating tool comprising the ear fitting according to claim 1 and the heating body.

Images