Heating device

Abstract

To provide a warmer capable of simultaneously warming the periphery of eyes and ears.SOLUTION: The heating tool includes a storage part and a heating material. The housing part has a first region covering the left ear, a second region covering both eyes and their surroundings, and a third region covering the right ear, and a first space corresponding to the first region, a second space corresponding to the second region, and a third space corresponding to the third region are formed inside. A heat generating material is filled in each of the first space, the second space, and the third space.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a heating device that is worn on a part of the body. [Background technology]

[0002] Patent Document 1 discloses an eye mask-type heating device that is worn on the user's face. This heating device includes a heat-generating material, a main body that contains the heat-generating material and covers the left and right eyes and the areas around each eye when worn, and a pair of ear loops that are worn over the ears when worn. This heating device is intended for use as an eye mask while sleeping. Patent Document 2 discloses a sleep-promoting device that can be worn on the ears to promote sleep. This sleep-promoting device includes an ear-worn device with an insert that can be inserted into the concha, and a heating element that heats the inner surface of the concha through the insert. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-074431 [Patent Document 2] Japanese Patent Publication No. 2022-075388 Summary of the Invention [Problem to be solved by the invention]

[0004] Due to the way in which the heating devices disclosed in Patent Documents 1 and 2 are attached to the body, the areas that can be heated are limited to the area around the eyes or the inner surface of the concha, and no consideration is given to simultaneously warming the areas around the eyes and the ears.

[0005] An object of the present invention is to provide a heating device that can warm the areas around the eyes and the ears at the same time. [Means for solving the problem]

[0006] The heating implement according to a first aspect comprises a storage section and a heat-generating material. The storage section has a first region covering the left ear, a second region covering both eyes and their surroundings, and a third region covering the right ear, and is internally formed with a first space corresponding to the first region, a second space corresponding to the second region, and a third space corresponding to the third region. The heat-generating material is filled into each of the first space, the second space, and the third space.

[0007] The heating device according to a second aspect is the heating device according to the first aspect, wherein the storage section restricts the movement of the heat-generating material between the first space and the second space, and between the second space and the third space.

[0008] A heating device according to a third aspect is a heating device according to the first or second aspect, wherein a fourth space that separates the first space from the second space, and a fifth space that separates the second space from the third space are further formed inside the storage section, and the fourth space is filled with a smaller amount of heat-generating material than the first space, and the fifth space is filled with a smaller amount of heat-generating material than the third space.

[0009] A heating implement according to a fourth aspect is the heating implement according to any one of the first aspect to the third aspect, in which the fourth space and the fifth space are not filled with the heat-generating material.

[0010] The heating device of the fifth aspect is a heating device of any one of the first to fourth aspects, in which if the mass of the heat-generating material filled in the first space or the third space is 1, the mass of the heat-generating material filled in the second space is greater than 1.3 and less than 2.45. [Effects of the Invention]

[0011] According to the present invention, a heating device is provided that can simultaneously warm the areas around the eyes and the ears. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a top view of a heating device according to one embodiment. [Figure 2] FIG. [Figure 3] Cross-sectional view of FIG. 1 taken along line III-III. [Figure 4] FIG. 1 is a diagram showing a state in which a heating device according to an embodiment is used. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, a heating device according to one embodiment of the present invention will be described with reference to the drawings. Note that the drawings do not necessarily reflect actual dimensions. Also, for the sake of convenience, some elements may be omitted from the drawings.

[0014] <1. Overall structure> Fig. 1 is a top view of a heating device 1 according to one embodiment, Fig. 2 is a bottom view of the heating device 1, and Fig. 3 is a cross-sectional view taken along the line III-III of Fig. 1. The heating device 1 is formed in a generally band-like shape having a longitudinal direction and a lateral direction as a whole, and is used by wrapping it around the head of a user U and covering both eyes and ears (see Fig. 4). Here, the top surface of the heating device 1 is the surface that faces outward when viewed from the user U during use, and the bottom surface of the heating device 1 is the surface that faces the user U during use. The heating device 1 comprises an outer fabric 5 that forms the top surface, and linings 6a and 6b that form the bottom surface. The lining 6a is sewn into a bag-like shape to the longitudinal center of the outer fabric 5, forming the storage section 2 of the heating device 1. The two linings 6b are sewn to both longitudinal ends of the outer fabric 5, forming the fixing sections 3 and 4. The storage section 2, the fixing section 3 and the fixing section 4 are each partitioned by a seam 10 formed in the short direction.

[0015] [Containment section] When the heating implement 1 is worn, the storage section 2 covers the eyes and ears of the user U and stores the heat-generating material 7, which will be described later. The storage section 2 is divided into a first region 21, a second region 22, a third region 23, a fourth region 24, and a fifth region 25 by seams 11 formed in the short direction of the heating implement 1. Each of the regions 21 to 25 forms a bag-shaped internal space with the outer fabric 5 and the lining 6a (see Figure 3).

[0016] The first region 21 is an area that covers the left ear and its surroundings of the user U when worn. A first space S1 is formed inside the first region 21. A predetermined amount of heat-generating material 7 is filled in the first space S1. However, a substantially circular seam 13 is formed in the center of the first region 21, and the heat-generating material 7 is not filled in the inner area surrounded by the seam 13. In other words, the heat-generating material 7 is filled in the first space S1 excluding the area inside the seam 13. This prevents the heat-generating material 7 from becoming unevenly distributed within the first space S1, allowing the entire left ear of the user U and its surroundings to be evenly heated via the lining 6a. The longitudinal length of the first region 21 is not particularly limited as long as it is long enough to sufficiently cover the left ear of the user U, but can be, for example, 10 cm to 12 cm. Similarly, the lateral length of the first region 21 can be, for example, 8 cm to 10 cm. The length in the short side direction is common to the entire accommodation portion 2, the fixing portion 3, and the fixing portion 4, excluding the notch portion 220 described later.

[0017] The seam 11 between the first region 21 and the fourth region 24 restricts the movement of the heat-generating material 7 from the first region 21 to the fourth region 24. Here, "restricting movement" means to prevent or limit movement, and includes not only completely stopping the movement of the heat-generating material 7, but also reducing the amount of movement of the heat-generating material 7 compared to the amount that would normally be possible in the absence of the seam 11. The seam 11 according to this embodiment restricts the movement of the heat-generating material 7 from the first region 21 to the fourth region 24.

[0018] The second region 22 is a region that covers the user U's eyes and the surrounding areas when worn. A second space S2 is formed inside the second region 22. A predetermined amount of heat-generating material 7 is filled in the second space S2. However, two oblong seams 12 are formed in the second region 22 at positions corresponding to the user U's eyes (eyeballs), and the heat-generating material 7 is not filled in the inner region surrounded by each seam 12. In other words, the heat-generating material 7 is filled in the second space S2 excluding the inner region of each seam 12, so the thickness of this inner region is thinner than the surrounding thickness. The heat-generating material 7 heats the surrounding areas excluding the user U's eyes via the lining 6a. The longitudinal length of the second region 22 is not particularly limited as long as it is long enough to sufficiently cover the user U's left eye to right eye, but it can be, for example, 18 cm to 22 cm, taking into account the thickness of the heat-generating material 7.

[0019] A cutout 220 that is roughly triangular in top view is formed in the middle of the two seams 12 in the longitudinal direction of the second region 22. The cutout 220 is formed on one side in the short direction of the heating device 1, so that the second region 22 does not completely cover the nose of the user U when worn. The cutout 220 also indicates to the user U the correct orientation for wearing the device.

[0020] The seam 11 between the second region 22 and the fourth region 24 restricts the movement of the heat generating material 7 from the second region 22 to the fourth region 24. In addition, the seam 11 between the second region 22 and the fifth region 25 restricts the movement of the heat generating material 7 from the second region 22 to the fifth region 25. The seams 11 according to this embodiment respectively prevent the movement of the heat generating material 7 from the second region 22 to the fourth region 24 and from the second region 22 to the fifth region 25.

[0021] The third region 23 is an area that covers the right ear of the user U and its surroundings when worn. A third space S3 is formed inside the third region 23. A predetermined amount of heat-generating material 7 is filled in the third space S3. This amount is the same as the amount filled in the first space S1, as described below. A substantially circular seam 14 is formed in the center of the third region 23, and the heat-generating material 7 is not filled in the inner area surrounded by the seam 14. In other words, the heat-generating material 7 is filled in the third space S3 excluding the area inside the seam 14. This prevents the heat-generating material 7 from becoming unevenly distributed within the third space S3, allowing the entire right ear of the user U and its surroundings to be evenly heated via the lining 6a. The longitudinal length of the third region 23 is not particularly limited as long as it is long enough to sufficiently cover the right ear of the user U, but it can be, for example, 10 cm to 12 cm, similar to the first region 21.

[0022] The fourth region 24 is a region formed between the first region 21 and the second region 22, and is partitioned by two seams 11. A fourth space S4 is formed inside the fourth region 24. In this embodiment, the fourth space S4 is not filled with the heat-generating material 7. Therefore, the thickness of the fourth region 24 is thinner than the thicknesses of the first region 21 and the second region 22. This allows the fourth region 24 to easily fit the curves of the head or face of the user U. The longitudinal length of the fourth region 24 is not particularly limited, but can be, for example, 1 cm to 3 cm.

[0023] The fifth region 25 is a region formed between the second region 22 and the third region 23, and is partitioned by two seams 11. A fifth space S5 is formed inside the fifth region 25. In this embodiment, the fifth space S5 is not filled with the heat-generating material 7. Therefore, the thickness of the fifth region 25 is thinner than the thicknesses of the second region 22 and the third region 23. This allows the fifth region 25 to easily fit the curves of the head or face of the user U. The longitudinal length of the fifth region 25 is not particularly limited, but can be, for example, 1 cm to 3 cm, similar to the fourth region 24.

[0024] [Fixed part] The fixing part 3 and the fixing part 4 are formed at both ends in the longitudinal direction, and are connected to each other at the back of the user U's head, thereby fixing the heating device 1 to the head of the user U. The fixing part 3 has a hook-and-loop fastener 30 fixed to the surface of the outer fabric 5. The hook-and-loop fastener 30 according to this embodiment is fixed to the surface of the outer fabric 5 so that its longitudinal direction coincides with the longitudinal direction of the heating device 1. The fixing part 4 has a hook-and-loop fastener 40 fixed to the surface of the lining 6b. The hook-and-loop fastener 40 according to this embodiment is fixed to the surface of the lining 6b so that its width direction coincides with the longitudinal direction of the heating device 1. The fixing part 3 and the fixing part 4 are connected by arranging the hook-and-loop fastener 30 and the hook-and-loop fastener 40 facing each other and connecting them. By adjusting the position where the hook-and-loop fastener 40 is connected in the longitudinal direction of the hook-and-loop fastener 30, the wearing length of the heating device 1 can be adjusted to fit the user U's head circumference.

[0025] The length of the fixing part 3 in the longitudinal direction is not particularly limited, but can be, for example, 11 cm to 15 cm. The length of the hook-and-loop fastener 30 in the longitudinal direction is also not particularly limited, but can be, for example, 9 cm to 11 cm. The length of the fixing part 4 in the longitudinal direction is not particularly limited, but can be, for example, 9 cm to 13 cm. The length of the hook-and-loop fastener 40 in the lateral direction (of the heating device 1) is also not particularly limited, but can be 4 cm to 6 cm. The widths of the hook-and-loop fasteners 30 and 40 can each be about 2 cm.

[0026] [Outer and lining] The outer fabric 5 and the linings 6a, 6b are not particularly limited as long as they are flexible and can accommodate the heat-generating material 7, and can be made of, for example, woven fabric, nonwoven fabric, knitted fabric, etc. The outer fabric 5 and the linings 6a, 6b may each be formed by laminating multiple layers of the above-mentioned woven fabric, nonwoven fabric, knitted fabric, etc., and the above-mentioned woven fabric, nonwoven fabric, knitted fabric, etc. may be laminated in any combination. The fiber material making up the woven fabric, nonwoven fabric, knitted fabric, etc. is also not particularly limited, and examples that can be used include natural fibers such as cotton; semi-synthetic fibers such as rayon; synthetic fibers such as polypropylene, polyethylene, and polyester; and fibers made up of a mixture of various fibers.

[0027] From the viewpoint of improving the feel, heat retention, and light blocking properties, the outer fabric 5 is preferably thicker than the linings 6a and 6b, and more preferably brushed. The lining 6a is preferably made of a material that does not block the thermal effect generated by the heat-generating material 7 described below or the transmission of water vapor to the user U. The combination of the outer fabric 5 and the lining 6a is preferably such that the light blocking rate in the inner area surrounded by each seam 12 is 99% or more. Furthermore, hook-and-loop fasteners 30 and 40 are sewn to the lining 6b together with the outer fabric 5. Therefore, the lining 6b is preferably made of a woven fabric that is easy to sew and does not stretch due to the weight of the heat-generating material 7. Furthermore, the lining 6b comes into contact with the back of the user U's head when sleeping. For this reason, it is preferable that the lining 6b be made of a thin fabric so as not to cause discomfort to the user U, such as a stiff feeling.

[0028] [Heat-generating materials] The heat-generating material 7 is not particularly limited as long as it can generate heat by some means. Examples include heat-generating compositions containing iron and moisture that generate heat upon contact with air, sodium acetate aqueous solutions, and materials that generate heat upon exposure to microwaves in a microwave oven. Among these, materials that generate heat upon exposure to microwaves in a microwave oven are preferred because they can be used repeatedly without being removed from the storage section 2. Examples of such materials include natural ingredients such as adzuki beans, soybeans, and brown rice. Adzuki beans, in particular, contain relatively high amounts of sugar and moisture. When heated in a microwave oven, not only does the sugar generate heat, but the moisture also evaporates, generating steam. The heat generated by this steam is moist heat, which is more likely to reach deeper into the body than dry heat without moisture, and is expected to have a greater thermal effect. Furthermore, even if adzuki beans lose moisture through evaporation, they can absorb and retain moisture from the air. For this reason, adzuki beans are suitable as a heat-generating material 7 that can be heated and reused in a microwave oven. In this embodiment, adzuki beans as a heat-generating material are directly filled into the first space S1, the second space S2, and the third space S3.

[0029] The amount (mass) of the heat-generating material 7 filled is preferably an amount that can reliably warm the areas around the user U's eyes and ears while not causing a feeling of pressure on the user U. From the perspective of promoting sleep, it is known that it is preferable to heat the area around the eyes (excluding the eyeballs) at a temperature of around 40°C for approximately 20 minutes. From this perspective, the mass of the heat-generating material 7 filled in the second space S2 is preferably 110 g or more. However, even if the second space S2 is filled with 110 g or more of the heat-generating material 7, if the overall filling amount of the heat-generating material 7 is too large, the user U will feel a sense of pressure, and the heating device 1 will become less comfortable to use. On the other hand, if the filling amount of the heat-generating material 7 in the first space S1 and the third space S3 is too small, the heating duration of the ears will be shortened, and comfort will decrease. From the above perspectives, the total mass of the heat-generating material 7 is preferably 220 g or more and 290 g or less, more preferably 230 g or more and 270 g or less, and even more preferably 240 g or more and 260 g or less.

[0030] The heat-generating material 7 filled in the first space S1 or the third space S3 preferably heats the left ear or the right ear, respectively, at around 40°C for as long as possible. Furthermore, it is preferable that the heat-generating material 7 imparts appropriate weight to the first region 21 and the third region 23 to improve the fit around the ears. From this perspective, if the mass of the heat-generating material 7 filled in the first space S1 or the third space S3 is taken as 1, the mass of the heat-generating material 7 filled in the second space S2 is preferably greater than 1.3 and less than 2.45, and more preferably 1.4 or greater and 2.1 or less.

[0031] <2.How to use> The following describes how to use the heating device 1. The heating device 1 is intended to be used especially while sleeping. By using the heating device 1 to warm the area around both eyes and both ears at the same time, the user U feels comfortable and can be encouraged to fall asleep.

[0032] First, the heating device 1 is placed in the microwave oven and heated at a predetermined wattage for a predetermined time.

[0033] Next, the heating device 1 is removed from the microwave oven, and the seams 12 are aligned with the positions of both eyes, and the notch 220 is aligned with the position of the nose.

[0034] Next, wrap the heating device 1 around the user U's head with the outer fabric 5 facing outward and the linings 6a and 6b facing inward, overlap the fixing parts 3 and 4 at the back of the head so that the fixing part 4 is on the outer side, and connect the hook-and-loop fasteners 30 and 40. This completes the wearing of the heating device 1 as shown in Figure 4.

[0035] The heating device 1 can be heated in a microwave oven and reused after a predetermined period of time, and can be reused in the same manner approximately 250 times.

[0036] <3. Features> According to the heating device 1 according to the above embodiment, the following effects can be obtained. (1) It can heat the area around both eyes and both ears at the same time. In other words, it can provide a heating effect that has not been achieved with previous heating devices, and is expected to provide greater comfort and promote sleep.

[0037] (2) The movement of the heat-generating material 7 is prevented between the first space S1 and the second space S2, and between the second space S2 and the third space S3. This prevents the heat-generating material 7 from concentrating in one area, causing a localized feeling of pressure when using the heating device 1, or causing uneven heating.

[0038] (3) A fourth space S4 and a fifth space S5 are formed that are not filled with the heat-generating material 7. This allows the heating device 1 to fit the curves of the user U's head or face when worn, improving the fit of the heating device 1. Furthermore, the heat-generating material 7 is concentrated in the first region 21 to the third region 23, where the user is more likely to feel comfortable due to heating, preventing an unnecessary increase in the mass of the heat-generating material 7. Furthermore, the presence of the fourth region 24 and the fifth region 25 ensures that the overall length of the heating device 1 is long enough to wrap around the heads of more users U.

[0039] (4) The seams 12 prevent direct heating of the eyeballs. Furthermore, the presence of the seams 12 restricts the movement of the heat-generating material 7 within the second space S2 to some extent, preventing extreme imbalance of the heat-generating material 7. Similarly, the seams 13 prevent extreme imbalance of the heat-generating material 7 within the first space S1, and the seams 14 prevent extreme imbalance of the heat-generating material 7 within the third space S3. Furthermore, because the area inside the seams 12 is blocked by the outer fabric 5 and the lining 6a, the user U is less likely to sense light when sleeping, allowing them to fall asleep in a more relaxed state.

[0040] (5) By using red beans as the heat-generating material 7, the heating device 1 can be used easily and economically. Furthermore, moist heat can be utilized to transfer heat deeper into the body. The amount of heat-generating material 7 filled into the second space S2 is sufficient to maintain a temperature of approximately 40°C for approximately 20 minutes, effectively promoting sleep. Furthermore, the mass of the heat-generating material 7 filled into the first space S1 and the third space S3 is adjusted to provide a comfortable fit and sustained heating, while also preventing a feeling of pressure on the entire device.

[0041] (6) Hook and loop fasteners 30 and 40 are used as the connecting mechanism for the fixing parts 3 and 4. This makes it easy to attach the heating device 1 to the back of the head, which the user U cannot see, and also makes it easy to adjust the length of the heating device 1 to a length that the user U finds comfortable. In addition, in the heating device 1 according to the above embodiment, the hook and loop fasteners 30 and 40 are oriented so that the longitudinal direction of the hook and loop fastener 30 that faces outward when worn coincides with the longitudinal direction of the heating device 1, and the width direction of the hook and loop fastener 40 that faces inward (toward the user U) when worn coincides with the longitudinal direction of the heating device 1. Conversely, the hook and loop fasteners 30 and 40 can also be oriented so that the width direction of the hook and loop fastener 30 coincides with the longitudinal direction of the heating device 1, and the longitudinal direction of the hook and loop fastener 40 coincides with the longitudinal direction of the heating device 1; however, this would make the hook and loop fastener 40 more likely to come into contact with the user U's hair, which could result in a worsening user experience. From this perspective, the above embodiment is more advantageous. Furthermore, the heating implement 1 according to the above embodiment is configured so that when worn, the hook-and-loop fastener 30 wraps around from the left side of the user U to the back of the head, and the hook-and-loop fastener 40 wraps around from the right side of the user U to the back of the head. Conversely, the heating implement 1 can also be configured so that when worn, the hook-and-loop fastener 30 wraps around from the right side of the user U, and the hook-and-loop fastener 40 wraps around from the left side of the user U. However, for a right-handed user U, it is easier to hold the fixing part 3 with the left hand to position the hook-and-loop fastener 30, and then hold the fixing part 4 with the right hand to adjust the relative position of the hook-and-loop fastener 40. From this perspective, the above embodiment is more advantageous.

[0042] <4. Modifications> Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible without departing from the spirit of the present invention. For example, the following modifications are possible. Furthermore, the gist of the following modifications can be combined as appropriate.

[0043] (1) The fourth region 24 and the fifth region 25 may be omitted. In other words, the first region 21 and the second region 22, and the second region 22 and the third region 23 may be formed adjacent to each other and separated only by the seam 11. Furthermore, the seam 11 may be omitted, and the first region 21 to the third region 23 may be formed integrally. Note that at least one of the seams 11 may be curved rather than straight.

[0044] (2) In both cases where the fourth region 24 and the fifth region 25 are formed and where they are omitted, at least one of the seams 11 does not have to be formed continuously over the entire short-side direction of the heating device 1; for example, it may be partially interrupted. Even in this case, the movement of the heat-generating material 7 across adjacent spaces (between the first space S1 and the second space S2, the second space S2 and the third space S3, or the first space S1 and the fourth space S4, the second space S2 and the fourth space S4, the second space S2 and the fifth space S5, or the third space S3 and the fifth space S5) is restricted to some extent. The heat-generating material 7 may also be filled in the fourth region 24 and the fifth region 25. In this case, in order to maintain the ease of folding of the heating device 1, it is preferable that the amount of heat-generating material 7 filled in the fourth space S4 is smaller than the amount of heat-generating material 7 filled in the first space S1. Similarly, the amount of heat generating material 7 filled in the fifth space S5 is preferably smaller than the amount of heat generating material 7 filled in the third space S3.

[0045] (3) At least one of the seams 12, 13, and 14 may be omitted. Furthermore, the shape of at least one of the seams 12, 13, and 14 may be changed as appropriate. For example, at least one of the seams 12, 13, and 14 may be one or more linear seams rather than a circular seam as in the above embodiment. Furthermore, the cutout portion 220 may be omitted.

[0046] (4) The configurations of the hook-and-loop fasteners 30 and 40 are not limited to those in the above-described embodiment, and the number, shape, etc. may be changed as appropriate. Furthermore, the connecting mechanism of the fixing parts 3 and 4 is not limited to hook-and-loop fasteners. For example, in addition to or instead of hook-and-loop fasteners, the connecting mechanism may be a snap button, a button and a buttonhole, a tie, a rubber band and a rubber stopper, etc.

[0047] (5) The width of the fixing parts 3 and 4 in the short direction does not have to be the same as the width of the storage part 2. Furthermore, instead of the fixing parts 3 and 4, rubber may be provided to connect the first region 21 and the third region 23, and this may be used as the fixing part of the heating device 1. In other words, the configuration of the fixing part is not particularly limited as long as it can fix the heating device 1 to the head of the user U. Furthermore, even if the fixing part itself is omitted and the heating device 1 is used by placing it on the head of the user U who is lying on their back, it is possible to simultaneously warm the area around the eyes and ears. However, from the perspective of preventing slippage during use, it is preferable that the heating device 1 has a fixing part.

[0048] (6) The portion of the storage section 2 that is filled with the heat-generating material 7 may be easily openable and closable using a zipper, hook-and-loop fastener, button, snap fastener, or the like. In particular, when the heat-generating composition described above is used as the heat-generating material 7, it is preferable to store the heat-generating material 7 in a breathable packaging material and configure it as a disposable warmer before filling the storage section 2, rather than filling the heat-generating material 7 directly into the storage section 2. For this reason, when a single-use material is used as the heat-generating material 7, the storage section 2 may be configured to be openable and closable to facilitate replacement of the heat-generating material 7.

[0049] (7) The heating device 1 is not limited to one having an outer fabric 5 and linings 6a and 6b, and the configuration of the storage section 2, etc. can be changed as appropriate. For example, the number of linings that make up the heating device 1 may be reduced, or conversely, the heating device 1 may be configured using more outer fabrics and linings. When the outer fabric 5 and linings 6a and 6b are nonwoven fabrics, they may be secured by heat sealing, ultrasonic sealing, etc., rather than by sewing. Furthermore, at least one of the seams 12, 13, and 14 may be replaced with heat sealing or ultrasonic sealing as appropriate, or these may be used in combination. [Example]

[0050] Examples of the present invention will be described below, but the following examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention.

[0051] <Experimental Method> Examples 1 to 11 were produced using heating devices having the same configuration as the above-described embodiment, but with different total masses of the heat-generating material, masses of the heat-generating material housed in the first and third spaces, and masses of the heat-generating material housed in the second space. Red beans were used as the heat-generating material in Examples 1 to 11, and the same amount of red beans was filled in the first and third spaces. The total mass of the red beans, the mass A of the red beans filled in the second space, the mass B of the red beans filled in the first or third space, and the ratio A:B (where B=1) for Examples 1 to 11 were as shown in Table 1 below. [Table 1]

[0052] Four subjects (women in their 20s and 30s) actually wore Examples 1 to 11 and evaluated the comfort (weight, fit, and temperature retention) when they assumed a sleeping position, using the following criteria. Weight g: Moderate weight, n: Slight pressure, p: Strong pressure Fit g: Moderate fit, n: Poor fit due to poor balance between eyes and ears Temperature persistence g: The temperatures in the first, second, and third regions were moderate, and the moderate temperature was sustained for a sufficient period in each region; n: The moderate temperature was sustained for a sufficient period in the second region, but the moderate temperature was not sustained for a sufficient period in the first and third regions (the temperature dropped in a shorter period than in the second region); p: The moderate temperature was not sustained for a sufficient period in the second region. The evaluation of the weight, fit, and temperature retention items was based on the evaluation of the same items by four subjects and was derived as follows: G: Three or more out of four people rated it as "g" and there were no "p"s. N: Two or more out of four people gave the rating "n" and there was no "p" P: One or more out of four people rated "p" Based on the evaluation of each of the above items, the overall evaluation of Examples 1 to 11 was derived as follows. Overall rating: G: Each item is rated "G", N: Some items are rated "N" but there are no items rated "P", P: There is at least one item rated "P".

[0053] The evaluation was as shown in Table 2 below. [Table 2]

[0054] As shown in Table 2, it was found that when the total mass of the heat-generating material is 290g or less, the user does not feel any pressure. Furthermore, it was found that when the total mass of the heat-generating material is 290g or less and A is greater than 1.3 and less than 2.45 when B is 1, a moderate heating effect around the eyes and both ears is maintained for a reasonable period of time, and a good fit is also obtained. [Explanation of symbols]

[0055] 1. Heating equipment 2. Storage section 3 Fixed part 4 Fixed part 7 Heat-generating materials 21 First area 22 Second area 23 Third Domain S1 First Space S2 Second Space S3 Third Space S4 Fourth Space S5 Fifth Space U ユーザ

Claims

1. a storage section having a first region covering the left ear, a second region covering both eyes and their surroundings, and a third region covering the right ear, and having a first space corresponding to the first region, a second space corresponding to the second region, and a third space corresponding to the third region formed therein; a heat generating material filled in each of the first space, the second space, and the third space; A heating device equipped with:

2. the containing section restricts movement of the heat-generating material between the first space and the second space and between the second space and the third space. The heating device according to claim 1.

3. a fourth space that separates the first space from the second space, and a fifth space that separates the second space from the third space are further formed inside the accommodating portion; The fourth space has a smaller filling amount of the heat generating material than the first space, The fifth space has a smaller filling amount of the heat generating material than the third space. The heating device according to claim 2.

4. The fourth space and the fifth space are not filled with the heat-generating material. The heating device according to claim 3.

5. When the mass of the heat generating material filled in the first space or the third space is 1, the mass of the heat generating material filled in the second space is more than 1.3 and less than 2.

45. The heating device according to any one of claims 2 to 4.

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