Eye mask type heating appliance

Abstract

The present application provides a warm appliance of eye mask type which is well fitted to a face. The warm appliance (1) includes a heat generating material (3), a main body (2) which houses the heat generating material (3) and covers the left and right eyes and the periphery of each eye of a user's face when worn, and a pair of ear hanging portions (4L, 4R) which hang on the user's ears when worn. One of the pair of ear hanging portions (4L, 4R) is provided at the end portion of the left side of the main body (2), and the other is provided at the end portion of the right side of the main body (2). A part of the pair of ear hanging portions (4L, 4R) includes engaging portions (5) which engage with the corresponding end portions of the main body (2), respectively. Each engaging portion (5) of the pair of ear hanging portions (4L, 4R) is curved inward at the middle by a contour line (51) on the inner side in the lateral direction of the main body (2) to reach the lower edge of the main body (2), so that a part protrudes inward.

Description

Technical Field

[0001] This invention relates to a mask-type heated device worn on a user's face. Background Technology

[0002] In the prior art, there are known eye mask-type heating devices that are worn on a user's face and can provide warmth to the left and right eyes and the area around each eye. When worn, these heating devices have ear loops at the left and right ends of the main body covering the left and right eyes and the area around each eye. By hooking each ear loop onto the corresponding side of the left and right ears, the heating device can be worn on the face. Generally, each ear loop extends horizontally parallel to the main body, with its inner end (main body side) joined to the left and right ends of the main body. However, as in Patent Document 1, there are also structures where the inner end of each ear loop extends diagonally downward relative to the main body, joining the left and right ends of the main body.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent No. 5377611 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] In existing heating appliances, the ear loops are hung on the left and right ears, and the main body is bent to cover the user's face along the horizontal center, thus conforming to the face to some extent. However, because the cheekbones protrude below the eyes, the lower left and right corners of the main body covering the face do not conform to the face and float up. This results in heat dissipation from the heating material and an inability to effectively apply warmth to the area around the user's eyes. In the heating appliance of Patent Document 1, the ear loops are spread diagonally downward relative to the horizontal direction of the main body, making it easier for the main body to conform to the face when worn. However, there is still room for improvement in Patent Document 1 regarding the aforementioned problem.

[0008] The present invention was made to solve the above-mentioned problems, and its purpose is to provide a warming device of the eye mask type that fits well in the face.

[0009] Methods for solving problems

[0010] This invention relates to an eye mask-type heating device for use on a user's face. The heating device of this invention is characterized by comprising a heating material, a main body portion that houses the heating material and covers the left and right eyes and the area around each eye when worn, and a pair of ear loop portions that hang on the ears when worn. One of the ear loop portions is located at the left end of the main body portion, and the other is located at the right end of the main body portion. A portion of each ear loop portion includes a connecting portion that engages with the corresponding end of the main body portion. Each connecting portion of the ear loop portion bends inward midway along the inner contour line of the main body portion in a transverse direction to reach the lower edge of the main body portion, thereby partially protruding inward.

[0011] In the heating appliance of the present invention, it can be configured such that, in each joint of the pair of ear loops, the portion that bends inward toward the inner contour line includes: a first portion that extends parallel to the transverse direction of the main body from the portion that bends inward, and a second portion that extends continuously with the first portion and parallel to the longitudinal direction orthogonal to the transverse direction of the main body to the lower edge of the main body.

[0012] In the heating appliance of the present invention, it is possible to configure that, in each joint of the pair of ear loops, the portion that bends inward toward the inner contour line, except for the portion that extends parallel to the longitudinal direction orthogonal to the transverse direction of the main body from the lower edge of the main body, intersects with an imaginary line parallel to the transverse direction of the main body.

[0013] For example, each joint of the pair of ear loops can be configured such that the inner contour line bends inward or inward midway.

[0014] Alternatively, each joint of the pair of ear loops can be configured such that the inner contour line bends inward and diagonally downward relative to the lateral direction of the main body.

[0015] Alternatively, each joint of the pair of ear loops can be configured such that the inner contour line bends inward midway to form a stepped shape with multiple steps.

[0016] In the heating appliance of the present invention, the inwardly protruding portion of each joint of the pair of ear loops can be configured to include at least one separation portion that is spaced apart laterally in the main body.

[0017] In the heating appliance of the present invention, each joint of the pair of ear loops can be configured such that the inner contour line bends inward midway to reach the upper edge of the main body, thereby further protruding inward.

[0018] In the heating appliance of the present invention, each joint of the pair of ear loops can be configured such that the outer contour line of the main body in the lateral direction overlaps with the left and right side edges of the main body.

[0019] In the heating appliance of the present invention, the pair of ear loops can be configured to unfold from a state of overlapping the main body by folding back at each joint.

[0020] Invention Effects

[0021] In the heating appliance of the present invention, the inner contour lines of the pair of ear loops at the joint with the main body curve inward midway to reach the lower edge of the main body. Therefore, in the heating appliance according to the present invention, when the pair of ear loops are pulled laterally outward relative to the main body to hang on the user's ears, the lower areas of the left and right ends of the main body are pulled forcefully and deformed in a manner that bends longitudinally toward the main body and toward the user's face. Thus, the lower areas of the left and right ends of the main body can be kept in close contact with the face without lifting off. In particular, when the lower areas of the left and right ends of the main body cover the vicinity of the cheekbone below the eyes, even if the cheekbone is prominent, it can be covered near the cheekbone by bending along its surface shape, thus enabling the main body to fit snugly and well with the user's face. Attached Figure Description

[0022] Figure 1 In the diagram, (A) is a front view of the heating appliance of this embodiment, and (B) is a rear view of the heating appliance of this embodiment.

[0023] Figure 2 This is a perspective view of the heating appliance of this embodiment.

[0024] Figure 3 This is a rear view of the heating appliance in this embodiment with the pair of ear loops unfolded.

[0025] Figure 4 yes Figure 3 X1-X1 cross-sectional view.

[0026] Figure 5 This is the rear view of the main body.

[0027] Figure 6 This is a rear view of the main body of the heating appliance in this embodiment, when a pair of ear loops are pulled laterally outward from the main body.

[0028] Figure 7 (A) and (B) are both rear views showing the main parts of the main body of the modified heating appliance.

[0029] Figure 8(A) and (B) are both rear views showing the main parts of the main body of the modified heating appliance.

[0030] Figure 9 (A), (B), and (C) are all rear views showing the main parts of the main body of the modified heating appliance.

[0031] Figure 10 (A), (B), and (C) are all rear views showing the main parts of the main body of the modified heating appliance.

[0032] Figure 11 (A) and (B) are both rear views showing the main parts of the main body of the modified heating appliance.

[0033] Figure 12 (A), (B), and (C) are all rear views showing the main parts of the main body of the modified heating appliance.

[0034] Figure 13 In the diagram, (A) is a schematic cross-sectional view showing the relationship between the main body and the ear loop of the heating appliance in this embodiment, and (B) is a schematic cross-sectional view showing the relationship between the main body and the ear loop of the heating appliance in a modified example.

[0035] Figure 14 In the image, (A) is the front view of the modified heating appliance, and (B) is the rear view of the modified heating appliance. Detailed Implementation

[0036] Hereinafter, embodiments of the eye mask-type heating device (hereinafter referred to as "heating device") of the present invention will be described with reference to the accompanying drawings. The heating device is worn on the user's face and, by applying warmth to the left and right eyes and the area around each eye, can treat eye fatigue, relieve stiffness in the muscles around the eyes, or provide a relaxing effect. Furthermore, the area around the eyes, in the vertical direction of the face, refers to the region from the upper eyelid to the lower eyelid, preferably from the eyebrow to the nose, and in the horizontal direction of the face, refers to the region from the tip of the eye to the area between the eye and the ear.

[0037] like Figures 1-5As shown, the heating device 1 of this embodiment includes a heating material 3, a main body 2 housing the heating material 3, and a pair of ear loops 4L and 4R disposed at the left and right ends of the main body 2. The heating device 1 is worn on the face by hanging the ear loops 4L and 4R on the corresponding sides of the left and right ears, so that the main body 2 covers the left and right eyes and the area around each eye. Furthermore, the heating device 1 provides warmth to the left and right eyes and the area around each eye by generating heat from the heating material 3 housed in the main body 2. The heating device 1 uses the heat generated by the oxidation reaction in the heating material 3 as a heat source, similar to a disposable hand warmer. However, the heating device 1 of the present invention is not limited to heating devices that use the heat generated by the oxidation reaction in the heating material 3 as a heat source; for example, the heating material 3 can also be heated by microwave irradiation using a microwave oven or the like.

[0038] First, the heating material 3 can be a powdered material that generates heat through contact with air. Examples of such heating material 3 include compositions containing appropriate amounts of an easily oxidizable metal, activated carbon, carbon black, a water-retaining agent (e.g., wood flour, vermiculite, diatomaceous earth, perlite, silica gel, alumina, absorbent resin, etc.), a metal salt (e.g., table salt), and water. The easily oxidizable metal is a metal that generates heat of oxidation; examples include powders or fibers selected from one or more of iron, aluminum, zinc, manganese, magnesium, and calcium. From the viewpoints of operability, safety, manufacturing cost, shelf life, and stability, iron powder is preferred. Examples of iron powder include one or more selected from reduced iron powder and atomized iron powder. As the above composition, known compositions used in disposable hand warmers in the prior art can be used.

[0039] Alternatively, materials other than those that generate heat through contact with air can be used as the heating material 3. For example, materials that generate heat by being irradiated by microwaves in a microwave oven (such as ceramic powders such as ferrites) can also be used as the heating material 3.

[0040] Next, the main body 2 covers the left and right eyes and the area around each eye when the heating device 1 is worn on the face. The main body 2 is flat and elongated laterally when viewed from above, and is sized to cover the left and right eyes and the area around each eye. When viewed from above, the main body 2 has an upper edge 20 and a lower edge 21 along the lateral direction, and left and right side edges 22 and 23 along the longitudinal direction, and is symmetrical about left and right at the center position in the lateral direction with respect to the longitudinal center line 24 extending parallel to the longitudinal direction.

[0041] In this invention, "lateral" refers to the direction parallel to the left-right direction of the face (connecting the left and right ears) when the heating device 1 is worn on the face in the main body 2. "Vertical" refers to the direction orthogonal to the lateral direction, which is parallel to the up-down direction of the face (connecting the forehead, nose, and chin) when the heating device 1 is worn on the face in the main body 2. In this embodiment, the length direction of the main body 2 is lateral. "Inner side" refers to the side of the longitudinal center line 24 in the lateral direction of the main body 2, and "outer side" refers to the left and right side edges 22 and 23 on the side of the main body 2 opposite to the longitudinal center line 24 in the lateral direction. "Left-right direction" is defined based on the user wearing the heating device 1 on their face facing forward. These definitions of direction are not intended to limit the way the heating device 1 is used.

[0042] The upper edge 20 is either straight or curved with concave and convex shapes. In contrast, the lower edge 21, when the heating device 1 is worn on the face, is located below the eyes, and therefore tapers into a concave shape in the middle of the horizontal direction, following the shape of the nose. Furthermore, the lower edge 21 extends diagonally downwards from the lower end of the concave portion towards the left and right ends, and the left and right corners 25 and 26 on the lower side of the main body 2 expand significantly downwards. Thus, the left and right corners 25 and 26 on the lower side of the main body 2 cover the area near the cheekbones below the eyes when the heating device 1 is worn on the face. The left and right corners 25 and 26 on the lower side of the main body 2 have rounded corners in this embodiment, but rounded corners are not necessarily required. The left and right side edges 22 and 23 are straight in this embodiment, but they may also be curved outwards into a convex shape.

[0043] The main body 2 is formed into a bag shape, with an internal storage space for storing the heating material 3 in a sealable manner. The main body 2 includes two sheets 27A and 27B of the same shape forming the front and back sides. The bag shape is formed by joining the portions of the two sheets 27A and 27B along their outer periphery all around the circumference. In this embodiment, the joining of the two sheets 27A and 27B is achieved by heat fusion (heat sealing), but in addition to heat fusion, known methods such as pressing with known adhesives, ultrasonic welding, or combinations thereof can also be used.

[0044] The width of the first joint portion 28, formed by joining the outer peripheries of two sheets 27A and 27B, is not particularly limited; any suitable width may be used. Alternatively, the width of the first joint portion 28 may be approximately the same along the entire circumference of the outer periphery of the main body 2, or it may vary as in this embodiment. In this embodiment, the width of the first joint portion 28 along the longitudinal edges of the left and right side edges 22 and 23 of the main body 2 is wider than the width along the transverse edges of the upper edge 20 and lower edge 21 of the main body 2. Furthermore, the width of the first joint portion 28 along the longitudinal edges of the left and right side edges 22 and 23 of the main body 2 increases towards the upper and lower sides, and the width is widest at the lower side of the main body 2 where it abuts against the left and right corner portions 25 and 26.

[0045] In addition to the first joint 28, the main body 2 also has two sheets 27A and 27B joined at a pair of second joints 29L and 29R. The pair of second joints 29L and 29R are positioned in the main body 2 at positions corresponding to the left and right eyes when the heating device 1 is worn on the face. One second joint 29L contacts and covers the left eye when the heating device 1 is worn on the face, and the other second joint 29R contacts and covers the right eye when the heating device 1 is worn on the face, thus forming eye-covering portions in the main body 2.

[0046] In this embodiment, the pair of second joints 29L, 29R (eye coverings) are portions that do not house the heating material 3. The pair of second joints 29L, 29R (eye coverings) are separated from the portion covering the area around the eyes in the main body 2 (surrounding coverings), restricting the movement of the heating material 3 housed in the adjacent surrounding coverings towards the pair of second joints 29L, 29R (eye coverings). The pair of second joints 29L, 29R (eye coverings) are horizontally elongated oval shapes (including elliptical shapes), but their shape is not particularly limited as long as they can cover the eyes; for example, they can also be horizontally elongated rectangular shapes, rhomboid shapes, etc.

[0047] The main body 2 is designed so that, since the heating material 3 is not housed in the pair of second joints 29L, 29R (eye coverings), the left and right eyes will not be excessively heated by the high temperature generated by the heating material 3 when the heating device 1 is worn on the face. If the left and right eyes (eyeballs) are excessively heated by high temperature, denaturation of corneal proteins may occur due to the heat. Therefore, in this embodiment, excessive warming of the left and right eyes (eyeballs) is prevented when the heating device 1 is worn on the face.

[0048] The eye-covering portion of the main body 2 can accommodate the heating material 3 as long as the filling rate of the heating material 3 is lower than that of the surrounding covering portion. However, from the viewpoint that the left and right eyes (eyeballs) will not be overheated when the heating device 1 is worn on the face, it is preferable not to accommodate the heating material 3. Here, the "filling rate" in this invention refers to the ratio of the weight of the heating material 3 actually filled in the eye-covering portion and the surrounding covering portion to the weight of the largest heating material 3 that can be filled.

[0049] Furthermore, from the viewpoint that the heating device 1 will not overheat the left and right eyes (eyeballs) when worn on the face, the main body 2 can also have the eye-covering portion that contacts the left and right eyes when the heating device 1 is worn on the face as a through hole. However, if the eye-covering portion is a through hole, when the heating device 1 is used as an eye mask for sleeping, the main body 2 cannot block external light, thus losing the effect of an eye mask. Furthermore, when the heating device 1 is worn on the face, it cannot provide adequate warmth to the left and right eyes, and the heat generated from the heating material 3 dissipates to the outside through the through hole, so it may also be impossible to effectively provide warmth to the area around the eyes. Therefore, as with the heating device 1 of this embodiment, by making the eye-covering portion of the main body 2 a second joint portion 29L, 29R, compared to the case where the eye-covering portion is a through hole, it is advantageous to provide adequate warmth to the left and right eyes when the heating device 1 is worn on the face while still achieving the effect of an eye mask, and to prevent excessive temperature drop in the area around the eyes.

[0050] The two sheets 27A and 27B constituting the main body 2 are flexible in that they follow the surface shape of the face when the heating device 1 is worn on the face. The raw materials of the two sheets 27A and 27B are not particularly limited, but resin film is preferred if strength and durability of heating material 3 are taken into consideration.

[0051] The resin used in the aforementioned resin film is not particularly limited, but thermoplastic resins are preferred. Examples of thermoplastic resins include polyethylene, polypropylene, polyester, polyamide, polyurethane, polystyrene, polyvinyl alcohol, polyvinyl chloride, polyvinylidene chloride, polycarbonate, ethylene-vinyl acetate copolymer, and polyethylene terephthalate. Among these, polyethylene, polypropylene, ethylene-vinyl acetate copolymer, and polyethylene terephthalate are preferred examples. These resins can be used alone or in combination of two or more.

[0052] Furthermore, from the viewpoint of providing a pleasant skin feel to the heated appliance 1, the two sheets 27A and 27B are preferably composed of a laminate made of breathable woven or nonwoven fabric laminated on the opposite side of the resin film to the side opposite to the heating material 3.

[0053] Examples of fiber raw materials for the aforementioned woven or nonwoven fabrics include natural fibers such as cotton, linen, silk, and paper; semi-synthetic fibers such as rayon and acetate; synthetic fibers such as nylon, vinylon, polyester, acrylic acid, polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, and polybutylene terephthalate; and blends of these fibers. From the viewpoint of providing a pleasant feel against the skin, nylon, polyester, polypropylene, and polyethylene terephthalate are preferred fiber materials, and nylon, polyester, and polyethylene terephthalate are more preferred. These fiber raw materials can be used alone or in combination of two or more. The weight per unit area of ​​the woven or nonwoven fabric is not particularly limited as long as it prevents the heating material 3 from leaking to the outside of the main body 2; for example, 20 g / m² is preferred. 2 Above and 90g / m 2 The following levels.

[0054] Of the two sheets 27A and 27B, the first sheet 27A, located on the opposite side to the face when the heating device 1 is worn on the face, is breathable. To ensure breathability, the resin film constituting the first sheet 27A is, for example, a porous resin film or a resin film with multiple perforations (not shown) formed by needles, through which air communicates between the inside and outside of the main body 2. The multiple perforations can be formed over the entire area of ​​the resin film or in a portion thereof. The size of each perforation is not particularly limited, as long as it can prevent the heating material 3 from leaking out to the outside of the main body 2 through the perforations; for example, a size of 0.1 μm or more and 30 μm or less can be used. The shape and number of each perforation are also not particularly limited, and the size, shape, and number of each perforation are appropriately set considering the heating temperature of the heating material 3 during use, corresponding to the air permeability of the main body 2.

[0055] When the heating appliance 1 is used for heating the left and right eyes and the area around each eye, it is preferably designed to have a heating temperature set at 30°C or higher and 70°C or lower in an environment of 20°C, and more preferably at 35°C or higher and 60°C or lower (the temperature measurement method is based on Japanese Industrial Standard S4100).

[0056] Of the two sheets 27A and 27B, the second sheet 27B, on the side opposite the face when the heating device 1 is worn on the face, can have the same level of breathability as the first sheet 27A, or it can have a greater resistance to air permeability than the first sheet 27A, or it can be substantially non-breathable. When the resin film constituting the second sheet 27B is non-breathable, a non-breathable resin film that is neither a porous membrane nor forms perforations (not shown) is used.

[0057] The thickness of the two sheets 27A and 27B is not particularly limited, but is preferably between 0.1 mm and 2.0 mm. This allows the main body 2 to be soft and easily conform to the face, while maintaining a certain level of strength.

[0058] Among them, the two sheets 27A and 27B do not necessarily need to be composed of a laminate of resin film and woven or nonwoven fabric. They can be composed of a single resin film or a single woven or nonwoven fabric.

[0059] Next, the pair of ear loops 4L and 4R are hung on the left and right ears when the heating device 1 is worn on the face. One ear loop 4L is located at the left end of the main body 2, and the other ear loop 4R is located at the right end of the main body 2.

[0060] Each pair of ear loops 4L and 4R is made of a single sheet of material and is elastic. Preferably, the elongation rate of the outer lateral side of the main body 2, i.e., the direction towards the ear from which the heating device 1 is separated when worn, is higher than the elongation rate of the longitudinal side of the main body 2, i.e., the direction orthogonal to the direction from which the main body 2 is separated. If the pair of ear loops 4L and 4R are elastic, they can be easily hooked onto the ears when the heating device 1 is worn on the face. However, the pair of ear loops 4L and 4R do not necessarily need to be elastic; they can be elongated but with weak or no contraction, or they can be neither elongated nor contracted.

[0061] The material of the pair of ear loops 4L and 4R is not particularly limited, and examples include woven fabrics, non-woven fabrics, and resin films. The pair of ear loops 4L and 4R can be used individually or in a laminate composed of multiple of them. Examples of fiber raw materials for woven or non-woven fabrics include natural fibers such as cotton, linen, silk, and paper; semi-synthetic fibers such as rayon and acetate; synthetic fibers such as nylon, vinylon, polyester, acrylic acid, polyethylene, polypropylene, polyvinyl chloride, and polybutylene terephthalate; and blends of these fibers. These fiber raw materials can be used individually or in combination of two or more. The resin used in the resin film is not particularly limited, and examples include polyethylene, polypropylene, polyolefins, polyester, polyamide, polyurethane, polystyrene, polyvinyl alcohol, polyvinyl chloride, polyvinylidene chloride, polycarbonate, and ethylene-vinyl acetate copolymers. These resins can be used individually or in combination of two or more.

[0062] A pair of ear hooks 4L, 4R Figure 1(B) In the closed state before the heating device 1 is worn on the face, it overlaps the main body 2. The pair of ear loops 4L and 4R have the same shape as the left and right halves of the main body 2, respectively, with the longitudinal center line 24 as the boundary. The upper and lower edges of the pair of ear loops 4L and 4R are located (overlapping) on ​​the upper edge 20 and lower edge 21 of the main body 2. The side edge of one side of the pair of ear loops 4L and 4R is located (overlapping) on ​​the left and right side edges 22 and 23 of the main body 2. The side edge of the other side of the pair of ear loops 4L and 4R is located (overlapping) on ​​the longitudinal center line 24 of the main body 2.

[0063] A portion of each of the ear loops 4L and 4R is respectively engaged with corresponding ends of the main body 2 in the lateral direction, thereby being respectively installed at each end of the main body 2 in the lateral direction. The pair of ear loops 4L and 4R are... Figure 1 (B) In the closed state, the outer ends (base ends) of each part are joined to the side of the main body 2 opposite to the face when the heating device 1 is worn on the face (the surface of the second sheet 27B). The connection between the main body 2 and the pair of ear loops 4L, 4R is achieved by heat fusion (heat sealing) in this embodiment, but in addition to heat fusion, known methods such as pressing with known adhesives, ultrasonic welding, or combinations thereof can also be used.

[0064] A pair of ear loops 4L, 4R overlap Figure 1 (B) shows the state of the main body 2, as follows: Figure 3 , Figure 5 and Figure 13 As shown in (A), each joint 5 of the main body 2 is folded back and unfolded, thus becoming a state in which it can be installed on the ear.

[0065] like Figure 1 (B) and Figure 5 As shown, each joint 5 extends longitudinally along the main body 2 with a predetermined lateral width at the left and right ends of the main body 2. In this embodiment, each joint 5 extends longitudinally along the main body 2 with a predetermined lateral width from the left and right side edges 22, 23 of the main body 2. Therefore, the outer contour line 50 of each joint 5 in the lateral direction of the main body 2 is located (overlapping) on ​​the left and right side edges 22, 23 of the main body 2.

[0066] The inner contour line 51 of the main body 2 of each joint 5 extends parallel to the longitudinal direction of the main body 2 in the lateral direction, but bends inward midway to reach the lower edge 21 of the main body 2. Therefore, a portion (protruding portion 52) of each joint 5 protrudes inward at the lower end. Specifically, in this embodiment, the inner contour line 51 of each joint 5 extends downward from the upper edge 20 of the main body 2 parallel to the longitudinal direction of the main body 2, then bends inward at a right angle (parallel to the lateral direction of the main body 2), and then extends downward. Therefore, in this embodiment, the inner contour line 51 of each joint 5 is composed of a third portion 51C extending parallel to the longitudinal direction of the main body 2 from the upper edge 20 of the main body 2, a first portion 51A continuous with the third portion 51C and curving laterally inward from the inwardly curved portion 51D of the main body 2, and a second portion 51B continuous with the first portion 51A and extending parallel to the longitudinal direction of the main body 2 from the lower edge 21 of the main body 2. A portion (protruding portion 52) of the lower end of each joint 5 protrudes inward. The first portion 51A and the third portion 51C are orthogonal and extend parallel to the transverse direction of the main body 2. From the viewpoint of ensuring the bonding strength between the main body 2 and each ear loop portion 4L, 4R, the distance of the third portion 51C from the left and right side edges 22, 23 of the main body 2 is preferably 3 mm or more, more preferably 5 mm or more. In addition, the third portion 51C does not necessarily have to be parallel to the longitudinal direction of the main body 2, and may be slightly inclined inward or outward.

[0067] The inner contour line 51 of each joint 5 determines the unfolding direction of the pair of ear loops 4L, 4R from the closed state. In this embodiment, the lower end of the inner contour line 51 of each joint 5 protrudes inward more than the upper end. Therefore, as... Figure 3 and Figure 5 As shown, a pair of ear loops 4L and 4R are located from... Figure 1 (B) The closed state shown unfolds in a horizontally downward direction relative to the main body 2 when each joint 5 is folded back and unfolded. Since the ears are slightly lower than the eyes, the heating device 1 can be worn on the user's face without discomfort by unfolding downward through a pair of ear loops 4L and 4R.

[0068] Furthermore, the lower end of the outline 51 on the inner side of each joint 5 protrudes inward more than the upper end, so as... Figure 6As shown, when the ear loops 4L and 4R are pulled outward to unfold them, the main body 2 is pulled strongly at the lower regions of the left and right ends (near the left and right corners 25 and 26 on the lower side of the main body 2) via each joint 5. At this time, since the inner contour line 51 of each joint 5 bends inward midway to reach the lower edge 21 of the main body 2, the lower regions of the left and right ends of the main body 2 (near the left and right corners 25 and 26 on the lower side of the main body 2) are pulled towards the user's face (in the lower part of the main body 2) due to the bending of the inner contour line 51 of each joint 5. Figure 6 The body part 2 is deformed by bending in a manner shown in the figure (within the front side). Therefore, the lower left and right corners 25 and 26 of the body part 2, near the cheekbones below the eyes when the heating device 1 is worn on the face, will not float off the face but will adhere to the face. Thus, the fit between the body part 2 and the face is improved. In this embodiment, by providing a portion 51D that bends inward midway along the inner contour line 51 of each joint 5, the lower areas of the left and right ends of the body part 2 (near the lower left and right corners 25 and 26 of the body part 2) can be easily deformed by bending along the surface shape of the user's face. Furthermore, the upper areas of the left and right ends of the body part 2 (near the upper left and right corners of the body part 2) also bend towards the user's face (within the front side) via each joint 5 due to the bending of the inner contour line 51. Figure 6 The body part 2 is deformed in a bending manner (as shown in the figure). Therefore, the upper areas of the left and right ends of the main body part 2 (near the left and right corners of the upper side of the main body part 2) will not float off the face but will fit the face, improving the fit to the face.

[0069] like Figure 1 (B) and Figure 3 As shown, an opening 40 is formed in a pair of ear hooks 4L and 4R. The opening 40 is the part into which the ear is inserted when the pair of ear hooks 4L and 4R are hung on the user's ear. The opening 40 is horizontally elongated, thereby allowing the ear to be easily inserted into the opening 40. In addition, the vertical width of the opening 40 (the length in a direction orthogonal to the length direction) gradually widens from the root end to the front end, that is, towards the ear when the heating device 1 is separated from the main body 2. This allows the ear to be easily inserted into the opening 40 and improves the fit of the pair of ear hooks 4L and 4R relative to the ear. The shape and size of the opening 40 are not particularly limited as long as the ear can be inserted into the opening 40.

[0070] Next, the method of using the aforementioned heating device 1 will be explained. Since the heating material 3 generates heat in the presence of air, the heating device 1 must be protected from air contact before use and stored in an airtight packaging bag (not shown). When using, open the packaging bag and remove the heating device 1. Then, unfold the pair of ear loops 4L and 4R from their closed state, so that the second joints 29L and 29R (eye covers) of the main body 2 contact the user's left and right eyes, bringing the main body 2 into contact with the user's face. While pulling the pair of ear loops 4L and 4R outwards, hang them on the ears. Thus, heat emitted from the heating material 3 provides warmth to the left and right eyes and the area around each eye.

[0071] When the heating device 1 is worn on the face, the lower edge 21 of the main body 2 bends into a concave shape and contracts significantly. Therefore, the main body 2 easily bends into two folds at the longitudinal centerline 24 at the horizontal center position, deforming along the shape of the face. As a result, the main body 2 fits the user's face well and tightly.

[0072] Furthermore, in the joint 5 between the pair of ear loops 4L and 4R and the main body 2, the inner contour line 51 curves inward midway to reach the lower edge 21 of the main body 2, so as... Figure 6 As shown, when the ear hooks 4L and 4R are pulled laterally outward relative to the main body 2 in order to hang them on the ears, the lower areas of the left and right ends of the main body 2 (near the left and right corners 25 and 26 on the lower side of the main body 2) are pulled forcefully, so that they bend longitudinally towards the user's face (in the direction of the ear hooks 4L and 4R). Figure 6 The body part 2 is deformed in a curved manner (as shown in the diagram). The left and right corners 25 and 26 on the lower side of the main body 2 contact the area near the cheekbone below the eyes when the heating device 1 is worn on the face. Even if the cheekbone is prominent, the body part 2 is curved along its surface shape and covers the area near the cheekbone, preventing it from lifting off the face and ensuring a close fit. Therefore, the main body 2 can fit more snugly against the user's face, suppressing heat loss from the heating material 3.

[0073] As described above, the heating appliance 1 according to this embodiment can make the main body 2 fit well against the user's face, so it can effectively exert the heating effect of the heating material 3 and effectively provide warmth to the user's eyes and the area around the eyes.

[0074] The embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention.

[0075] As a variation, in the above embodiment, in each joint 5 of the pair of ear loops 4L and 4R, an inwardly protruding portion 52 (hereinafter referred to as "protruding portion 52") formed by the inner contour line 51 bending inward midway is continuously formed, but as Figure 7 As shown, the protruding portions 52 of each joint 5 do not necessarily have to be formed continuously; they can also be formed intermittently in the middle. Each protruding portion 52 of the joint 5 may also include at least one separation portion 54 spaced apart laterally in the main body 2. Wherein, in Figure 7 The left half of the heating appliance 1 is omitted from the illustration, but it has the same structure as the right half.

[0076] exist Figure 7 In (A), the protruding portion 52 of each joint 5 is composed of a curved portion 53 that bends continuously inward from the lower end of each joint 5 and two separating portions 54 that are spaced apart laterally from the curved portion 53 along the main body 2. Furthermore, in Figure 7 In (B), the protruding portion 52 of each joint 5 is composed of three separation portions 54 that are spaced apart laterally along the lower end of the main body 2.

[0077] In this invention, the outline of the joint 5 refers to the line surrounding the overall shape of the joint 5. Figure 7 In the modified example, the outline 51 of the inner side of each joint 5 is also the same as in the above embodiment (see reference). Figure 1 (B) Similarly, after extending downwards parallel to the longitudinal direction of the main body 2 from the upper edge 20 of the main body 2, it bends inwards at a right angle (parallel to the transverse direction of the main body 2) and then extends downwards. The inner contour line 51 is composed of a third part 51C extending parallel to the longitudinal direction of the main body 2 from the upper edge 20 of the main body 2, a first part 51A extending parallel to the transverse direction of the main body 2 from the inwardly curved portion 51D, and a second part 51B extending parallel to the longitudinal direction of the main body 2 from the lower edge 21 of the main body 2, which is continuous with the third part 51C. The first part 51A of the inner contour line 51 starts from the inwardly curved portion 51D and extends... Figure 7 In the modified example of (A), the line connecting the upper edges of the curved portion 53 and the two separated portions 54 is shown in Figure 7 In the variant of (B), it is represented by a line connecting the upper edges of the three separate parts 54. Furthermore, in Figure 7 In order to make the outline 51 easier to observe, the outline 51 is shown at a position slightly off from the actual position of the outline on the inner side of the joint 5.

[0078] The separating portion 54 has a predetermined width and extends parallel to the longitudinal direction of the main body 2 on the side of the lower edge 21. The separating portion 54 is formed to a length that does not reach the upper edge 20 of the main body 2, preferably to a length that does not reach the longitudinal center of the main body 2. The separating portion 54 can extend from the lower edge 21 of the main body 2, or it can extend from a position that is separated from the lower edge 21 of the main body 2 by a predetermined distance in the longitudinal direction. Furthermore, the separating portion 54 does not necessarily need to extend parallel to the longitudinal direction as long as it is along the longitudinal direction of the main body 2; it can extend slightly inward or outward. In the case of multiple separating portions 54, the positions of the upper and lower ends of the multiple separating portions 54 can be either all at the same position in the transverse direction of the main body 2, or they can be at different positions.

[0079] exist Figure 7 In a modified example, the inner contour line 51 of the pair of ear loops 4L and 4R at the junction 5 with the main body 2 bends inward midway to reach the lower edge 21 of the main body 2. Therefore, when the pair of ear loops 4L and 4R are pulled laterally outward relative to the main body 2 to hang them on the ears, the lower areas of the left and right ends of the main body 2 (near the left and right corners 25 and 26 on the lower side of the main body 2) are pulled forcefully and deformed in a way that bends towards the user's face. When the heating device 1 is worn on the face, the left and right corners 25 and 26 on the lower side of the main body 2 come into contact with the area near the cheekbone below the eyes. Even if the cheekbone is prominent, it is covered near the cheekbone by bending along its surface shape and does not float off the face but fits the face. Therefore, the main body 2 can fit better against the user's face and can suppress the heat generated from the heating material 3 from dissipating to the outside.

[0080] Furthermore, in each joint 5, the angle 55 where the first part 51A and the second part 51B of the inner contour line 51 intersect is the part under the greatest load when the ear hooks 4L and 4R are pulled laterally outward relative to the main body 2 in order to hang them on the ears. If excessive load is applied to this angle 55, the ear hooks 4L and 4R may break at this angle 55. In this case, as described in the above embodiment (see...) Figure 1 (B) As in the case of continuous extension of the upper edge of the protruding portion 52 of each joint 5 parallel to the transverse direction of the main body 2, the breakage of the ear loop portions 4L and 4R may start at angle 55 and extend continuously along the upper edge of the protruding portion 52 to the inwardly bent portion 51D. In contrast, in Figure 7In the modified example, the upper edge of the protruding part 52 of each joint 5 extends intermittently parallel to the transverse direction of the main body 2. Therefore, even if the ear hooks 4L and 4R are broken at the corner 55, the continuous breaking of the ear hooks 4L and 4R can be temporarily stopped at the position where there is no upper edge of the protruding part 52, preventing the breaking of the ear hooks 4L and 4R from continuously extending to the part 51D that bends inward toward each joint 5.

[0081] As another variation, in the above embodiment, in each joint 5 of the pair of ear loops 4L and 4R, the inner contour line 51 bends inward at a right angle midway (parallel to the transverse direction of the main body 2), but as... Figure 8 and Figure 9 As shown, the inner contour line 51 does not necessarily need to be bent at a right angle (parallel to the transverse direction of the main body 2) as long as it bends inward midway. Furthermore, in Figure 8 and Figure 9 Although the left half of the heating appliance 1 is omitted from the illustration, it has the same structure as the right half.

[0082] For example in Figure 8 In a variation of (A), the joints 5 of the pair of ear loops 4L and 4R bend inward along their inner contour lines 51, reaching the lower edge 21 of the main body 2. Consequently, a portion (protruding portion 52) of the lower end of each joint 5 protrudes inward. Figure 8 In the variation of (A), the inner contour line 51 of each joint 5 is composed of a third part 51C that extends parallel to the longitudinal direction of the main body 2 from the upper edge 20 of the main body 2, and a first part 51A that curves convexly to the transverse inner side of the main body 2 from the portion 51D that is continuous with the third part 51C and curves inward, and reaches the lower edge 21 of the main body 2. However, it may also include a second part that is continuous with the first part 51A and extends parallel to the longitudinal direction of the main body 2 from the lower edge 21 of the main body 2.

[0083] In addition, Figure 8 In the variation (B), the joints 5 of the pair of ear loops 4L and 4R bend inward along their inner contour lines 51, reaching the lower edge 21 of the main body 2. Consequently, a portion (protruding portion 52) of the lower end of each joint 5 protrudes inward. Figure 8In the modified example (B), the inner contour line 51 of each joint 5 is composed of a third part 51C that extends parallel to the longitudinal direction of the main body 2 from the upper edge 20 of the main body 2, a first part 51A that bends into a concave shape from the portion 51D that is continuous with the third part 51C and bends inward toward the transverse inner direction of the main body 2, and a second part 51B that is continuous with the first part 51A and extends parallel to the longitudinal direction of the main body 2 from the lower edge 21 of the main body 2. However, the second part 51B may be omitted, and the first part 51A may bend and reach the lower edge 21 of the main body 2.

[0084] In addition, Figure 9 In a variation of (A), the inner contour line 51 of each joint 5 of the pair of ear loops 4L and 4R bends inward and diagonally downward relative to the main body 2 midway, reaching the lower edge 21 of the main body 2. As a result, a portion (protruding portion 52) of the lower end of each joint 5 protrudes inward. Figure 9 In the variation of (A), the inner contour line 51 of each joint 5 is composed of a third part 51C that extends parallel to the longitudinal direction of the main body 2 from the upper edge 20 of the main body 2, a first part 51A that bends obliquely downward from the lateral inner side of the main body 2 from the part 51D that is continuous with the third part 51C and bends inward, and a second part 51B that is continuous with the first part 51A and extends parallel to the longitudinal direction of the main body 2 from the lower edge 21 of the main body 2. However, the second part 51B may be omitted, and the first part 51A may bend obliquely downward and reach the lower edge 21 of the main body 2.

[0085] In addition, Figure 9 In the variation (B), the inner contour line 51 of each joint 5 of the pair of ear loops 4L and 4R bends inward midway to form a stepped shape with multiple steps, reaching the lower edge 21 of the main body 2. As a result, a portion (protruding portion 52) of the lower end of each joint 5 protrudes inward. Figure 9 In the modified example (B), the inner contour line 51 of each joint 5 is composed of a third part 51C that extends parallel to the longitudinal direction of the main body 2 from the upper edge 20 of the main body 2, a first part 51A that bends in a stepped manner from the portion 51D that is continuous with the third part 51C and bends inward toward the transverse inner side of the main body 2, and a second part 51B that is continuous with the first part 51A and extends parallel to the longitudinal direction of the main body 2 from the lower edge 21 of the main body 2.

[0086] In addition, such as Figure 9 As in the variation of (C), the inner contour line 51 of each joint 5 of the pair of ear loops 4L, 4R bends inward and diagonally downward relative to the lateral direction of the main body 2, reaching the lower edge 21 of the main body 2. However, each joint 5 may also be a branch of it, with the branch portion 52 protruding inward. Figure 9In the variation of (C), the inner contour line 51 of each joint 5 is composed of a third part 51C that extends parallel to the longitudinal direction of the main body 2 from the upper edge 20 of the main body 2, a first part 51A that bends obliquely downward from the lateral inner side of the main body 2 from the part 51D that is continuous with the third part 51C and bends inward, and a second part 51B that is continuous with the first part 51A and extends parallel to the longitudinal direction of the main body 2 from the lower edge 21 of the main body 2. However, the second part 51B may be omitted, and the first part 51A may bend obliquely downward and reach the lower edge 21 of the main body 2.

[0087] exist Figure 8 and Figure 9 In a modified example, the inner contour line 51 of the pair of ear loops 4L and 4R at the junction 5 with the main body 2 bends inward midway to reach the lower edge 21 of the main body 2. Therefore, when the pair of ear loops 4L and 4R are pulled laterally outward relative to the main body 2 to hang them on the ears, the lower areas of the left and right ends of the main body 2 (near the left and right corners 25 and 26 on the lower side of the main body 2) are pulled forcefully and deformed in a way that bends towards the user's face. When the heating device 1 is worn on the face, the left and right corners 25 and 26 on the lower side of the main body 2 come into contact with the area near the cheekbone below the eyes. Even if the cheekbone is prominent, it is covered near the cheekbone by bending along its surface shape and does not float off the face but fits the face. Therefore, the main body 2 can fit better against the user's face and can suppress the heat generated from the heating material 3 from dissipating to the outside.

[0088] In addition, Figure 8 and Figure 9 In a modified example, when the ear hooks 4L and 4R are pulled laterally outward relative to the main body 2 to hook them onto the ears, each joint 5 is subjected to maximum load at a designated location 56 along its inner contour line 51. If excessive load is applied to this location 56, the ear hooks 4L and 4R may break off at that location 56. In contrast, in Figure 8 and Figure 9In the modified example, the portion of the inner contour line 51 of each joint 5 that bends inward, except for the portion extending parallel to the longitudinal direction of the main body 2 from the lower edge 21 of the main body 2, intersects the imaginary line 57 parallel to the transverse direction of the main body 2. The upper edge of the protruding portion 52 of each joint 5 does not extend parallel to the transverse direction of the main body 2. Therefore, even if the ear loops 4L and 4R break at a predetermined location 56 on the inner contour line 51 in each joint 5, the break will not extend parallel to the transverse direction of the main body 2 from that location 56. Since the upper edge of the protruding portion 52 is located above the outer side of that location 56, the upper edge of the protruding portion 52 becomes a wall, suppressing the extension of the break of the ear loops 4L and 4R to the location 51D where they bend inward towards the joint 5. Therefore, it is possible to prevent the breakage of the ear loops 4L and 4R from continuously extending from the location 56 where the breakage occurs to the location 51D where they bend inward towards the joint 5.

[0089] Furthermore, in order to effectively prevent the breakage of the aforementioned ear loop portions 4L and 4R from continuously extending to the portion 51D that bends inward toward each joint portion 5, it is preferable to Figure 9 (B) The first portion 51A of the inner contour line 51 of each joint 5 shown is bent into a stepped shape. Furthermore, when pulling the pair of ear loops 4L, 4R laterally outward relative to the main body 2 to hang them on the ears, it is preferable to effectively reduce the load on the designated portion 56 of the inner contour line 51 of each joint 5. Figure 8 (A) The first part 51A of the inner contour line 51 of each joint 5 as shown is bent into a convex shape.

[0090] exist Figure 8 and Figure 9 In the modified examples, the protruding portions 52 of the joints 5 of the pair of ear loops 4L and 4R do not necessarily have to be formed continuously, such as Figure 10 As shown, it can also form intermittently and interruptedly along the way. Figure 10 In this configuration, each joint 5 protruding portion 52 includes at least one separation portion 54 spaced apart laterally in the main body 2. Figure 10 In (A) and (B), the protruding portion 52 of each joint 5 is composed of three separating portions 54 that are spaced apart laterally along the lower end of the main body 2. Figure 10 In (C), a portion of each joint 5 branches inward, forming a protruding portion 52. The protruding portion 52 is composed of three separate portions 54 that are offset longitudinally in the main body 2 and spaced apart laterally in the main body 2. In this case... Figure 10 The left half of the heating appliance 1 is omitted from the illustration, but it has the same structure as the right half.

[0091] exist Figure 10 In the modified example, the outline of the joint 5 also refers to the line surrounding the overall shape of the joint 5. Figure 10 In (A), the inner contour line 51 of each joint 5 bends inward and diagonally downward relative to the lateral side of the main body 2 midway to reach the lower edge 21 of the main body 2. The inner contour line 51 is composed of a third portion 51C extending parallel to the longitudinal direction of the main body 2 from the upper edge 20 of the main body 2, a first portion 51A bending diagonally downward inward from the portion 51D that is continuous with the third portion 51C, and a second portion 51B extending parallel to the longitudinal direction of the main body 2 from the lower edge 21 of the main body 2, which is continuous with the first portion 51A. The first portion 51A of the inner contour line 51 is represented by a line connecting the upper edges of the three separating portions 54 from the portion 51D that bends inward. Figure 10 In (A), the inner contour line 51 may also be without the second part 51B, and the first part 51A bends diagonally downwards while reaching the lower edge 21 of the main body 2.

[0092] exist Figure 10 In variations (B) and (C), the inner contour line 51 of each joint 5 bends inward midway to form a stepped shape with multiple steps, reaching the lower edge 21 of the main body 2. The inner contour line 51 is composed of a third portion 51C extending parallel to the longitudinal direction of the main body 2 from the upper edge 20 of the main body 2, a first portion 51A bending inward from a portion 51D that is continuous with the third portion 51C, forming a stepped shape laterally inward of the main body 2, and a second portion 51B extending parallel to the longitudinal direction of the main body 2 from the lower edge 21 of the main body 2, which is continuous with the first portion 51A. The first portion 51A of the inner contour line 51 is represented by a line connecting the upper edge of the three separating portions 54 and the upper part of the inner side edge from the inwardly bent portion 51D. Furthermore, in Figure 10 In order to make it easier to observe the outline 51, the outline 51 is also shown at a position that is slightly off from the actual position of the outline on the inner side of the joint 5.

[0093] exist Figure 10 In the variations, it also plays a role similar to Figure 8 and Figure 9 The variant example has the same effect. Moreover, in Figure 10 In the modified example, since the upper edge of the protruding part 52 of each joint 5 is discontinuous, even if the ear hooks 4L and 4R are broken, the breaking of the ear hooks 4L and 4R can be temporarily stopped at each separation part 54, preventing the breaking of the ear hooks 4L and 4R from continuously extending to the part 51D that bends inward toward each joint 5.

[0094] As another variation, in the above embodiment, the joints 5 of the pair of ear loops 4L and 4R bend inward along the inner contour line 51 to reach the lower edge 21 of the main body 2, so that a portion of the lower end (protruding portion 52) protrudes inward. However, it can also be as follows: Figure 11 and Figure 12 As shown, the inner contour line 51 bends inward midway to reach the upper edge 20 of the main body 2, thereby causing another part (protruding part 58) on the upper side to protrude inward. Additionally, in Figure 11 and Figure 12 Although the left half of the heating appliance 1 is omitted from the illustration, it has the same structure as the right half.

[0095] For example, in Figure 11 In the modified example (A), the inner contour line 51 of each joint 5 is composed of a third portion 51G extending parallel to the longitudinal direction of the main body 2, first portions 51A and 51E extending laterally inward from the lower or upper end of the third portion 51G and bending inward, respectively, and second portions 51B and 51F extending parallel to the longitudinal direction of the main body 2 from the lower edge 21 or upper edge 20 of the main body 2, which are continuous with the first portions 51A and 51E. The first portions 51A and 51E are orthogonal to the third portion 51G and extend laterally parallel to the main body 2. Figure 11 In the variation of (A), the first parts 51A and 51E are bent inward at a right angle (parallel to the transverse direction of the main body 2) relative to the third part 51G. However, they can also be bent into a stepped shape with multiple steps, or be bent diagonally downward or upward relative to the transverse direction of the main body 2, or be bent into a convex or concave shape. In addition, the third part 51G does not necessarily have to be parallel to the longitudinal direction of the main body 2, and can also be slightly inclined inward or outward.

[0096] In addition, such as Figure 11 As shown in the variation of (B), the inner contour line 51 of each joint 5 may also lack the second part 51B, 51F, and be composed only of the first part 51A, 51E and the third part 51G, with the first part 51A, 51E reaching the lower edge 21 or upper edge 20 of the main body 2. Figure 11 In the variation of (B), the first parts 51A and 51E are bent in a way that protrudes inward, but they can also be bent in a way that is concave inward, and they can also be bent diagonally downward or upward relative to the lateral direction of the main body 2. Furthermore, in Figure 11 In the variations of (A) and (B), although the illustrations are omitted, they can still be compared with... Figure 9 Similarly, in a variation of (C), a portion of each joint 5 branches inward on its lower and upper ends, forming protrusions 52 and 58.

[0097] In addition, such as Figure 12 As shown in the variations of (A) and (B), the inner contour lines 51 of each joint 5 may not have a third part 51G, except for the second parts 51B and 51F, and may only be composed of the first parts 51A and 51E. Figure 12 In the variations of (A) and (B), the portion 51D that bends inward in the outline 51 on the inner side of each joint 5 is one portion. The first portion 51A bends inward from this portion 51D to reach the lower edge 21 of the main body 2, and the first portion 51E bends inward from this portion 51D to reach the upper edge 20 of the main body 2. Figure 12 In the modified example (A), the first parts 51A and 51E bend inwards relative to the transverse direction of the main body 2, diagonally downwards or upwards. Figure 12 In the variation of (B), the first parts 51A and 51E are bent in a way that is concave inward, but the first parts 51A and 51E can also be bent in a way that is convex inward.

[0098] As another variation, in the above embodiment, the outer contour line 50 of the main body 2 of each joint portion 5 of the pair of ear loops 4L and 4R overlaps with the left and right side edges 22 and 23 of the main body 2, but as Figure 12 As shown in (C), the outer contour line 50 of each joint 5 may not overlap with the left and right side edges 22, 23 of the main body 2. However, this is not limited to... Figure 12 For the joint portion 5 of the shape shown in (C), for any of the shapes of the joint portion 5 in the above embodiments and variations, the outer contour line 50 can be formed so that it does not overlap with the left and right side edges 22, 23 of the main body portion 2. However, when the joint portion 5 is formed in such a way that the outer contour line 50 overlaps with the left and right side edges 22, 23 of the main body portion 2, the pair of ear loop portions 4L, 4R can be firmly fixed to the main body portion 2, making it difficult to peel off, so it is preferable.

[0099] As another variation, in the above embodiments, such as Figure 3 , Figure 5 and Figure 13 As shown in (A), the pair of ear loops 4L and 4R are unfolded by folding back at each joint 5 to become a state in which they can be installed on the ear, but they can also be as follows: Figure 13 As shown in (B), the ends of a pair of ear loops 4L and 4R are joined to the left and right ends of the main body 2 in a manner that unfolds laterally along the main body 2 in the normal state.

[0100] As another variation, in the above embodiments, such as Figure 1 As shown, the left and right second joints 29L and 29R are separate, but the left and right second joints 29L and 29R can also be connected in the left and right direction of the main body 2.

[0101] As another variation, in the above embodiments, such as Figure 1 As shown, the storage area for the heating material 3 in the main body 2 is connected between the left and right eye cover portions 29L and 29R, but it can also be arranged as follows: Figure 14 As shown, a third joint 30 is provided between the left and right eye covering portions 29L and 29R, extending parallel to the longitudinal direction of the main body portion 2 along the longitudinal center line 24. Like the first joint 28 and the second joints 29L and 29R, the third joint 30 is a portion where two sheets 27A and 27B constituting the main body portion 2 are joined by known means such as heat fusion (heat sealing), pressing using known adhesives, ultrasonic welding, or combinations thereof.

[0102] As another variation, in the above embodiments, such as Figure 1 As shown, by providing the second joint 29L, 29R on the eye cover of the main body 2, the eye cover does not contain the heating material 3, but is separated from the surrounding cover. However, it is also possible not to separate the eye cover from the surrounding cover, and to contain the heating material in the eye cover as well.

[0103] Explanation of reference numerals in the attached figures

[0104] 1. Heating appliances

[0105] 2 Main body

[0106] 3 Heating materials

[0107] 4L Ear hook section

[0108] 4R Ear hooks

[0109] 5. Joint

[0110] 20. Upper edge of the main body

[0111] 21. Lower edge of the main body

[0112] 22. Left edge of the main body

[0113] 23. Right edge of the main body

[0114] 50. Outline of the outer side of the joint

[0115] 51. Contour line on the inner side of the joint

[0116] 54 Separation Section

[0117] 57 Imaginary lines.

Claims

1. A warming appliance, which is an eye mask type of warming appliance used while being worn on a user's face, characterized by: comprising a heat generating material, a main body portion that houses the heat generating material and covers the left and right eyes and the periphery of each eye when worn, and a pair of ear hanging portions that hang on the ears when worn, one of the pair of ear hanging portions is provided at an end portion of the left side of the main body portion, the other is provided at an end portion of the right side of the main body portion, a part of the pair of ear hanging portions includes a joint portion that engages with the corresponding end portion of the main body portion, respectively, each joint portion of the pair of ear hanging portions reaches the lower edge of the main body portion by the contour line of the inner side in the lateral direction of the main body portion being bent inwardly halfway, so that a part protrudes inwardly, the lower end portion of the contour line of the inner side of each joint portion of the pair of ear hanging portions protrudes inwardly more than the upper end portion.

2. The warming appliance according to claim 1, characterized in that: in each joint portion of the pair of ear hanging portions, the part that is bent inwardly of the contour line of the inner side includes a first part that extends in parallel with the lateral direction of the main body portion from the point of being bent inwardly, and a second part that extends in parallel with the longitudinal direction orthogonal to the lateral direction of the main body portion from the first part continuously to reach the lower edge of the main body portion.

3. The warming appliance according to claim 1, characterized in that: in each joint portion of the pair of ear hanging portions, the part that is bent inwardly of the contour line of the inner side, other than the part that extends in parallel with the longitudinal direction orthogonal to the lateral direction of the main body portion from the lower edge of the main body portion, intersects with an imaginary line that is parallel to the lateral direction of the main body portion.

4. The warming appliance according to any one of claims 1 to 3, characterized in that: the part that protrudes inwardly in each joint portion of the pair of ear hanging portions includes at least one separation portion that is provided at intervals in the lateral direction of the main body portion.

5. The warming appliance according to any one of claims 1 to 3, characterized in that: the contour line of the outer side in the lateral direction of the main body portion of each joint portion of the pair of ear hanging portions overlaps with the left and right side edges of the main body portion.

6. The warming appliance according to claim 4, characterized in that: the contour line of the outer side in the lateral direction of the main body portion of each joint portion of the pair of ear hanging portions overlaps with the left and right side edges of the main body portion.

7. The warming appliance according to any one of claims 1 to 3, characterized in that: the pair of ear hanging portions can be unfolded from a state of being overlapped on the main body portion by folding back at each joint portion.

8. The warming appliance according to claim 4, characterized in that: the pair of ear hanging portions can be unfolded from a state of being overlapped on the main body portion by folding back at each joint portion.

9. The warming appliance according to claim 5, characterized in that: the pair of ear hanging portions can be unfolded from a state of being overlapped on the main body portion by folding back at each joint portion. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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