TW202123909A - Eye mask-type heater - Google Patents

Abstract

Provided is an eye mask-type heater that warms the eyes (eyeballs) and areas surrounding the eyes to a suitable temperature. A heater comprises: a heat generation material that generates heat through contact with air; a body section that accommodates the heat generation material, and that covers the left and right eyes and the area surrounding the eyes on the face of the user when the heater is worn; and a pair of ear hooks that are hooked onto the ears of the user when the heater is worn. In the body section, eye-covering sections, which are sections that contact the eyes when the heater is worn, are demarcated from a surrounding area-covering section that contacts the area surrounding the eyes. The filling factor of the heat generation material in the eye-covering sections is less than that in the surrounding area-covering section.

Description

Eye mask type warm piece

The present invention relates to an eye mask type heating element to be worn on the face of a user, and in particular to an eye mask type heating element that is warmed by the heat generated by a self-heating material after contact with air Pieces.

Heretofore, there has been known an eye mask-type heating element that can be worn on the face of a user and can warm the left and right eyes and around each eye (see, for example, Patent Document 1). The heating element of Patent Document 1 has a heating material that generates heat by contact with air, and a body part that contains the heating material, and when the body part is placed on the face, the heat generated by the self-heating material can be Endow the user's left and right eyes and around each eye with warmth. Prior art literature Patent literature

Patent Document 1: Japanese Patent Application Publication No. 2014-8269

Summary of the invention The problem to be solved by the invention

By imparting warmth to the user's left and right eyes and around each eye, it can heal eye fatigue or relieve muscle stiffness around the eyes, which can impart a soothing effect. However, in the heating element of Patent Document 1, if the temperature distribution of the main body is observed, it can be seen that the temperature of the main body is locally increased, and the overall temperature also tends to rise. The high temperature part of the body part contains the eye covering part corresponding to the eye. If the left and right eyes (eyeballs) are overheated with high temperature heat, there is a concern that the protein of the cornea will be denatured due to heat. In addition, if the temperature of the entire body becomes too high, there is a risk of low-temperature burns when wearing the warming part on the face for a long time. Therefore, the heating element needs to be designed to apply heat to the eye (eyeball) or its surroundings at an appropriate temperature, respectively.

The present invention is made to solve the aforementioned problems, and its purpose is to provide an eye mask-type heating element that compresses the eye (eyeball) or around the eye at an appropriate temperature. Means to solve the problem

The present invention relates to an eye mask type heating element that is worn on the face of a user. The heating element of the present invention is characterized in that it has: a heating material which generates heat by contact with air; and a body part which accommodates the heating material and covers the eyes and around the eyes when worn; when worn in the body part, it is equivalent to The eye covering part of the eye part is separated from the surrounding covering part corresponding to the eye periphery; the filling rate of the heating material in the eye covering part is lower than that of the surrounding covering part.

In the heating element of the present invention, the eye covering portion is configured to not house the heat generating material.

The heating element of the present invention can be configured to further have a pair of ear hanging parts that are hung on the ears when worn. Invention effect

In the heating element of the present invention, since the filling rate of the heating material of the eye covering part of the main body is lower than that of the surrounding covering part, the heat generated from the heating material is weak or no heat. In addition, the eye covering part of the main body is separated from the surrounding covering part, so that heat conduction from the surrounding covering part to the eye covering part can be suppressed. As a result, the temperature in the eye covering of the main body can be suppressed from increasing. Therefore, when the warming element is worn on the face, the eyes (eyeballs) will not be warmed at high temperature, but can be warmed at an appropriate temperature.

In addition, since the main body part is separated from the inner side of the surrounding covering part with an eye covering part with a low filling rate of heating material, the maximum temperature of the main body part can be lowered, and the local high temperature rise of the main body part can be suppressed. Furthermore, the area of the high-temperature region containing the highest temperature that has fallen is increased, and the uniformity of the temperature distribution is improved. Therefore, when the warming element is worn on the face, the left and right eye areas can be warmed at a uniform and appropriate temperature in a wide range.

The form used to implement the invention

Hereinafter, the embodiment of the eye mask type heating element (hereinafter, simply referred to as "the heating element") of the present invention will be described with reference to the drawings. The warming piece is worn on the user's face and used. By providing warmth to the left and right eyes and around each eye, it can heal eye fatigue or relieve muscle stiffness around the eyes, which can give a soothing effect. Furthermore, the eye circumference is the range from the upper eyelid to the lower eyelid in the vertical direction of the face, preferably from the eyebrows to the nose, and the horizontal middle of the face refers to the range from the head of the eye to the area between the eyes and ears.

As shown in Figures 1 to 5, the heating element 1 of this embodiment has: a heating material 3, a main body 2 containing the heating material 3, and a pair of ear hooks 4L, 4R provided at the left and right ends of the main body 2 . The heating element 1 hangs the ear hanging parts 4L, 4R on the ear parts of the corresponding sides of the left and right ears, so that the main body part 2 is worn on the face so as to cover the left and right eyes and around each eye. In addition, in the heating element 1, the heating material 3 accommodated in the main body 2 generates heat, so that the left and right eyes in contact with the main body 2 and the peripheries of each eye are given warmth. The heating element 1 is the same as, for example, a disposable heating bag, and uses the reaction heat generated by the heating material 3 along with the oxidation reaction as a heat source.

First, the heat generating material 3 may use a powdery material that generates heat by contact with air. The heating material 3 can be an example of a composition containing the following substances in an appropriate content. The foregoing substances are oxidizable metals, activated carbon, carbon black, and water-retaining agents (such as wood powder, vermiculite, diatomaceous earth, wave Laminated iron, silica gel, alumina, water-absorbent resin, etc.), metal salt (such as table salt, etc.) and water. The oxidizable metal is a metal that can generate oxidation reaction heat, and examples thereof include powders or fibers selected from one or more of iron, aluminum, zinc, manganese, magnesium, and calcium. Among them, iron powder is also preferred from the viewpoints of handling, safety, manufacturing cost, preservation and stability. The iron powder may be one or more selected from reduced iron powder and atomized iron powder as examples. The above-mentioned composition can use a known composition that is conventionally used in disposable warm packs.

Next, the main body part 2 covers the left and right eyes and around each eye when the heating element 1 is worn on the face. The main body 2 is flat and formed in a horizontally long shape when viewed from a plan view, and is formed to be large enough to cover the left and right eyes and the periphery of each eye. In a plan view, the main body 2 has an upper edge 20 and a lower edge 21 along the transverse direction, and left and right side edges 22, 23 along the longitudinal direction. , Is a symmetrical shape.

Furthermore, in the present disclosure, "horizontal" refers to the direction parallel to the left-right direction (the direction connecting the left and right ears) of the face when the heating element 1 is worn on the face in the main body 2, and "longitudinal" refers to the horizontal direction. In the other direction, the direction parallel to the upper and lower direction of the face (the direction connecting the forehead, nose, and chin) in the main body 2 when the heating element 1 is worn on the face. In this embodiment, the longitudinal direction of the main body 2 is the horizontal direction. "Inner side" refers to the side of the main body part 2 in the transverse direction of the center line 24, and "outside" means the side of the left and right side edges 22, 23 in the transverse direction of the main body part 2 opposite to the longitudinal center line 24. The "left-right direction" defines the left-right direction based on when the user faces the front after wearing the heating element 1 on the face. The definition of these directions does not limit the usage of the heating element 1.

Relative to the upper edge 20, the lower edge 21 is located below the eyes when the heating element 1 is worn on the face. Therefore, the lateral center portion has a concave shape in the middle to follow the shape of the nose. In addition, the lower edge 21 extends obliquely downward with respect to the lateral direction from the lower end of the concave portion toward the left and right ends, and the left and right corners 25, 26 on the lower side of the main body 2 greatly expand on the lower side. Thereby, the left and right corners 25, 26 on the lower side of the main body 2 will cover the vicinity of the cheekbones under the eyes when the heating element 1 is worn on the face. The left and right corners 25, 26 on the lower side of the main body 2 have a curvature in this embodiment, but they do not necessarily have a curvature. The left and right side edges 22, 23 are linear in this embodiment, but they may also be curved convexly curved toward the outside.

The main body 2 is formed in a bag shape, and has a storage space in which the heating material 3 can be sealed in a sealed manner. The main body 2 has two sheets 27A, 27B with the same shape on the front and back, and all parts along the outer periphery of the two sheets 27A, 27B are joined to form a bag shape. In this embodiment, the two sheets 27A, 27B are joined by thermal bonding (heat sealing), but in addition to thermal bonding, well-known methods such as pressure bonding using known adhesives, ultrasonic bonding, etc. can also be used. The method can also be a combination of these.

The width dimension of the first joining portion 28 to which the outer peripheral edges of the two sheets 27A and 27B are joined is not particularly limited, and may be an appropriate width dimension. In addition, the width dimension of the first joining portion 28 may be slightly the same over the entire circumference of the outer peripheral edge of the main body portion 2, or may be different as in this embodiment. In this embodiment, the first joining portion 28 is formed along the width dimension of the longitudinal edge portions of the left and right side edges 22, 23 of the main body portion 2, which is longer than the horizontal edge portions along the upper edge 20 and the lower edge 21 of the main body portion 2. The width is large. In addition, the first joining portion 28 is formed so that the width dimension of the longitudinal edge portions along the left and right side edges 22, 23 of the main body 2 becomes larger toward the upper and lower sides, and is formed to the left and right corners to the lower side of the main body 2. The 25 and 26 sections have the largest width dimension.

The two sheets 27A, 27B constituting the main body 2 have flexibility to follow the shape of the face when the heating element 1 is worn on the face. The materials of the two sheets 27A, 27B are not particularly limited, but in consideration of strength and durability against heat generation of the heating material 3, it is preferable to use a resin film.

The resin used for the above-mentioned resin film is not particularly limited, but a thermoplastic resin is preferred. Examples of thermoplastic resins include polyethylene, polypropylene, polyester, polyamide, polyurethane, polystyrene, polyvinyl alcohol, polyvinyl chloride, polyvinylidene chloride, polycarbonate, and ethylene. Ethyl acetate copolymer, polyethylene terephthalate, etc. Among them, preferred examples include polyethylene, polypropylene, ethylene vinyl acetate copolymer, and polyethylene terephthalate. These resins may be used alone or in combination of two or more kinds.

In addition, from the viewpoint of making the skin contact of the heating element 1 good, the two sheets 27A, 27B are preferably composed of a laminate that is on the side opposite to the side facing the heat generating material 3 of the resin film Laminated layers have air-permeable woven or non-woven fabrics.

Examples of the fiber materials of the woven or non-woven fabric include: natural fibers such as cotton, linen, silk, and paper; semi-synthetic fibers such as rayon and acetate; nylon, vinylon, polyester, acrylic, polyethylene, and polypropylene , Polyvinyl chloride, polyethylene terephthalate, polybutylene terephthalate and other synthetic fibers; blended fibers of these fibers, etc. Among them, from the viewpoint of good skin contact, fiber materials can be preferably exemplified such as nylon, polyester, polypropylene, polyethylene terephthalate, and more preferably exemplified such as nylon, Polyester, polyethylene terephthalate. These fiber materials may be used alone or in combination of two or more kinds. The size of the woven fabric or non-woven fabric is not particularly limited as long as it can prevent the heat generating material 3 from leaking from the outside of the main body portion 2, but is ^{preferably about 20 g/m 2} or more and 90 g/m ² or less.

Among the two sheets 27A and 27B, the first sheet 27A on the side opposite to the side facing the face when the heating element 1 is worn on the face has air permeability. In order to ensure the air permeability of the resin film constituting the first sheet 27A, for example, a porous resin film or a resin film formed with a large number of perforations (not shown) with needles is used. Many small holes can be formed in the entire area of the resin film or in a part of the area. The size of each small hole is not particularly limited as long as it can prevent the heat generating material 3 from leaking to the outside of the main body 2 through the small hole, and may be 0.1 μm or more and 30 μm or less. The shape and number of the small holes are not particularly limited. The size, shape, and number of the small holes can be appropriately set after considering the air permeability of the main body 2 and the heating temperature of the heating material 3 during use.

In addition, when using the heating element 1 for the purpose of applying heat to the left and right eyes and around each eye, the heating temperature should be set to 30°C or more and 70°C or less in an environment of 20°C, preferably 35°C or more and 60°C or less (The temperature measurement method is based on the Japanese Industrial Standard S4100).

Among the two sheets 27A, 27B, the second sheet 27B on the side facing the face when the heating element 1 is worn on the face can have the same degree of air permeability as the first sheet 27A. It may have low air permeability, which has a greater resistance to air permeability than the first sheet 27A, or may have non-air permeability that does not allow air to pass substantially. If the resin film constituting the second sheet 27B is non-air-permeable, a non-porous film is used and a non-air-permeable resin film is not formed with perforations (not shown).

The thickness of the two sheets 27A, 27B is not particularly limited, but is preferably about 0.1 mm or more and 2.0 mm or less. Thereby, the main body 2 can be made soft and easily fit to the face, and a certain strength can be maintained on the main body 2.

Furthermore, the two sheets 27A, 27B do not necessarily need to be composed of a laminate of a resin film and a woven fabric or non-woven fabric, and may be composed of a separate resin film or a separate woven fabric or non-woven fabric.

In addition to the first joining part 28, the main body part 2 is joined to a pair of second joining parts 29L, 29R with two sheets 27A, 27B. A pair of second joining parts 29L, 29R are arranged in the main body 2 and correspond to the positions of the left and right eyes when the heating element 1 is worn on the face. One of the second joining parts 29L corresponds to and covers the left eye when the heating element 1 is worn on the face, and the other second joining part 29R corresponds to and covers the right eye when the heating element 1 is worn on the face. Covers, respectively, correspond to the left and right eye covering parts 8L and 8R in the main body part 2. Each eye covering portion 8L, 8R is composed of a pair of second joining portions 29L, 29R, and therefore does not penetrate in the thickness direction of the main body portion 2.

Each eye covering portion 8L, 8R does not contain the heat-generating material 3, and is a portion where the heat-generating material 3 does not exist. In addition, with a pair of second joining portions 29L, 29R, each eye covering portion 8L, 8R is separated from the part (peripheral covering portion) 9 of the main body 2 that covers the eye circumference, and can be restricted from being stored in adjacent surroundings. The heat generating material 3 of the covering portion 9 moves to each of the eye covering portions 8L, 8R. The outer shape of the pair of second joining parts 29L, 29R is a horizontally long oval (including an ellipse), but the shape is not particularly limited as long as it can cover the corresponding eyes, and may be, for example, a horizontally long rectangle or Diamond and so on.

Furthermore, in the present embodiment, a pair of second joining parts 29L, 29R are formed by joining two sheets 27A, 27B that constitute the main body part 2 over the entire area of each eye covering part 8L, 8R. However, it is not limited to this, and the pair of second joining portions 29L, 29R may be formed by joining the two sheets 27A, 27B constituting the main body portion 2 in a frame shape surrounding each of the eye covering portions 8L, 8R. At this time, the outer periphery of each eye covering portion 8L, 8R becomes a pair of second joining portions 29L, 29R, and each eye covering portion 8L, 8 surrounded by a pair of second joining portions 29L, 29R is in the thickness direction of the main body 2 The upper part is not penetrated, and although the two sheets 27A and 27B are not joined, the heat-generating material 3 is not housed, and it is a part where the heat-generating material 3 does not exist.

The body part 2 does not have the heat-generating material 3 in the eye covering parts 8L and 8R, so there is no heat-generating material 3 in the eye covering parts 8L and 8R. Apply the heat directly to the left and right eyes. In addition, since each eye covering portion 8L, 8R in the main body 2 is separated from the surrounding surrounding covering portion 9, heat conduction from the surrounding covering portion 9 to each eye covering portion 8L, 8R can be suppressed. Thereby, the main body part 2 is designed to suppress the temperature rise by using the eye covering parts 8L, 8R. When the heating element 1 is worn on the face, the left and right eyes (eyeballs) will not be heated at high temperature, but at an appropriate temperature.

In addition, since the main body portion 2 is separated from the inner side of the surrounding covering portion with the eye covering portions 8L, 8R where the heat-generating material 3 does not exist, the maximum temperature is lowered and the local temperature rise is suppressed. Furthermore, the area of the high-temperature region containing the highest temperature that has fallen is increased, and the uniformity of the temperature distribution is improved. Thereby, the main body 2 is designed so that when the heating element 1 is worn on the face, it can heat the left and right eye circumferences at a uniform and appropriate temperature in a wide range.

The eye covering parts 8L and 8R of the main body 2 do not necessarily contain the heat-generating material 3, and if the filling rate of the heat-generating material 3 is lower than that of the surrounding covering part 9, the heat-generating material 3 may be contained. If the filling rate of the heat generating material 3 of the eye covering parts 8L, 8R is low, the heat generated from the heat generating material in each eye covering part 8L, 8R becomes weak, so that the temperature of the eye covering parts 8L, 8R can be suppressed from increasing. Therefore, when the heating element 1 is worn on the face, it is suppressed to heat the left and right eyes (eyeballs) at a high temperature, and the heat can be applied at an appropriate temperature. Also, as in the case where the heat generating material 3 is not present in the eye covering parts 8L, 8R, the maximum temperature of the main body part 2 is lowered, and the local temperature increase can be suppressed, so that the area of the high-temperature region including the lowered maximum temperature is increased and improved Uniformity of temperature distribution. Therefore, when the heating element 1 is worn on the face, it is possible to apply heat to the left and right eye circumferences at a uniform and appropriate temperature in a wide range.

Furthermore, when the heat generating material 3 is accommodated in each eye covering 8L, 8R, the filling rate of the heat generating material 3 of each eye covering 8L, 8R is set to fill the temperature of each eye covering 8L, 8R at 50°C or less The rate is good, and the filling rate is preferably set to 42°C or less. For example, the filling rate of the heat-generating material 3 of each eye covering portion 8L, 8R is preferably 30% or less of the filling rate of the heat-generating material 3 of the surrounding covering portion 9, and more preferably 10% or less. Furthermore, from the viewpoint of not applying heat to the left and right eyes (eyeballs) at high temperature, it is preferable that the heat generating material 3 is not contained in the eye covering parts 8L and 8R of the main body part 2.

In addition, from the viewpoint that the left and right eyes (eyeballs) will not be heated at high temperature when the heating element 1 is worn on the face, the main body 2 can also consider the eye covering parts 8L and 8R as through holes. However, if the eye covering portions 8L, 8R are used as through holes, and the heating element 1 is used as an eye mask at bedtime, the main body 2 cannot be used to shield external light, and the effect of the eye mask is lost. In addition, when the warming element 1 is worn on the face, the left and right eyes are in contact with external air, and the left and right eyes cannot be warmed, and the temperature difference between each eye area that receives the warming becomes large. Therefore, there is a suspicion of uncomfortable feeling. In addition, when the heating element 1 is worn on the face, the heat generated from the heating material 3 of the surrounding covering portion 9 of the main body 2 will escape to the outside air through the through holes, so it cannot be effectively applied to the left and right eye areas. Warm doubts. Therefore, as in the heating element 1 of the present embodiment, the left and right eyes are covered by the eye covering parts 8L, 8R constituting the main body 2, compared to the case where the eye covering parts 8L, 8R are through holes and the left and right eyes are not covered. It can effectively achieve the effect of the eye mask, and when the warming element 1 is worn on the face, it can impart proper warming to the left and right eyes to eliminate discomfort, and it can inhibit the temperature drop that imparts heat to the left and right eyes Is effective.

Then, a pair of ear hanging parts 4L, 4R are hung on the left and right ears when the heating element 1 is worn on the face. Among the pair of ear hook parts 4L, 4R, one ear hook part 4L is provided at the left end of the main body part 2, and the other ear hook part 4R is provided at the right end of the main body 2.

The pair of ear hooks 4L and 4R are composed of one sheet and are stretchable. The stretchability is preferably as follows: the stretched length of the lateral outer side of the main body 2 (that is, the stretched length from the main body 2 toward the ears when the warming element 1 is worn) is greater than the longitudinal direction of the main body 2 (that is, the same as the aforementioned self The stretched length of the direction perpendicular to the direction from the main body 2 is long. If the pair of ear hooks 4L, 4R are stretchable, the pair of ear hooks 4L, 4R can be easily hooked on the ears when the heating element 1 is worn on the face. Furthermore, the pair of ear hooks 4L, 4R does not necessarily have to be stretchable, and may also be stretchable but weakly contracted or unable to contract, or unable to stretch and contract.

The material of the pair of ear hooks 4L, 4R is not particularly limited. Examples include woven fabrics, non-woven fabrics, and resin films. The pair of ear hooks 4L, 4R can be used alone or in combination. The majority of the layered body. Examples of woven or non-woven fiber materials include natural fibers such as cotton, linen, silk, and paper; semi-synthetic fibers such as rayon and acetate; nylon, vinylon, polyester, acrylic, polyethylene, polypropylene, etc. Synthetic fibers such as polyvinyl chloride and polybutylene terephthalate; blended fibers of these fibers, etc. These fiber materials may be used alone or in combination of two or more kinds. The resin used in the resin film is not particularly limited, and examples include polyethylene, polypropylene, polyolefin, polyester, polyamide, polyurethane, polystyrene, polyvinyl alcohol, polyvinyl chloride, and polyvinyl chloride. Vinylidene chloride, polycarbonate, ethylene-ethyl acetate copolymer, etc. These resins may be used alone or in combination of two or more kinds.

In the closed state where the warming element 1 shown in FIG. 1(B) is worn in front of the face, a pair of ear hooks 4L and 4R are superimposed on the main body 2. A pair of ear hooks 4L, 4R respectively present the same external shape on the left and right half bounded by the longitudinal center line 24 of the main body 2. The upper and lower edges of the pair of ear hooks 4L, 4R are located on the body On the upper edge 20 and the lower edge 21 of the part 2 (repeat), the side edges of the pair of ear hooks 4L, 4R are located on the left and right side edges 22, 23 of the body part 2 (repeat), a pair of ear hooks 4L , The side edge on the other side of 4R is located on the longitudinal center line 24 of the main body 2 (repeat).

The pair of ear hooks 4L, 4R are respectively connected to the lateral ends of the main body 2 by joining parts of them to the lateral ends of the main body 2 respectively. In the closed state as shown in Figure 1(B), the outer ends (base ends) of the pair of earhooks 4L and 4R are joined to the warming element 1 of the body 2 when worn to the face and face The surface (the surface of the second sheet 27B) on the side facing the part. The main body 2 and the pair of ear hooks 4L, 4R are joined by thermal bonding (heat sealing) in this embodiment, but in addition to thermal bonding, for example, crimping using known adhesives, ultrasonic bonding, etc. The well-known method can also be a combination of these.

A pair of ear hooks 4L, 4R are automatically superimposed on the main body 2 as shown in Fig. 1(B) to the state shown in Figs. 3, 5, and 7(A). The joints 5 of 2 are folded back and unfolded to be in a state where they can be placed on the ears.

As shown in FIG. 1(B) and FIG. 5, in the left and right ends of the main body 2, the joint portions 5 have a predetermined width and extend along the longitudinal direction of the main body 2. In this embodiment, the joint portions 5 extend from the left and right side edges 22, 23 of the main body 2 and extend along the longitudinal direction of the main body 2 with a predetermined width. Therefore, the side edges 50 of each joint 5 are located on the left and right side edges 22, 23 of the main body 2 in the lateral direction of the main body 2 (repeated).

Each joint 5 extends in parallel with the inner side edge 51 of the main body 2 in the transverse direction and the longitudinal direction of the main body 2, but bends inwardly to reach the lower edge 21 of the main body 2 in the middle. Specifically, the inner side edge 51 of each joint 5 in this embodiment extends downward from the upper edge 20 of the main body 2 in parallel with the longitudinal direction of the main body 2, and then faces at right angles to the inner side (in the horizontal direction of the main body 2). After bending in parallel), it extends to the lower side. Thereby, each engaging portion 5 includes a main portion 6 and a protruding portion 7. The main portion 6 has a predetermined horizontal width and extends parallel to the longitudinal direction of the main portion 2, and the protruding portion 7 faces toward the lower end of the main portion 6 The inner side continues to bend and then bulges toward the inner side. From the viewpoint of ensuring the bonding strength between the main body portion 2 and each ear hook portion 4L, 4R, the horizontal width of the main portion 6 of each bonding portion 5 is preferably 3 mm or more, and more preferably 5 mm or more.

Each joint 5 determines the expansion direction of the pair of ear hooks 4L, 4R from the closed state. In this embodiment, the lower end side of each joint 5 protrudes inwardly from the upper end side. Therefore, as shown in FIGS. 3 and 5, the pair of ear hooks 4L, 4R are expanded from the closed state shown in FIG. The form that extends obliquely downward is unfolded. Since the position of the ears is slightly lower than the eyes, if the pair of ear hooks 4L and 4R are spread out obliquely and downwards, the heating element 1 can be comfortably worn on the user's face.

As shown in FIG. 1(B) and FIG. 3, the opening 40 is formed in a pair of ear hook part 4L, 4R. The opening 40 is a part to be put into the ear when the pair of ear hooks 4L, 4R are hung on the ears of the user. The opening 40 is formed horizontally, whereby the ear can be easily inserted into the opening 40. In addition, the opening 40 is formed from the proximal side to the distal side, that is, when the heating element 1 is worn, the vertical width (length in the direction orthogonal to the longitudinal direction) gradually changes from the main body 2 toward the ears. Big. Thereby, the ears can be easily inserted into the opening 40, and the fit of the pair of ear hooks 4L, 4R to the ears can be improved. Furthermore, as long as the ear can be inserted into the opening 40, the shape or size of the opening 40 is not particularly limited.

Next, the method of using the above-mentioned heating element 1 will be explained. Since the heating material 3 generates heat in the presence of air, it is necessary to prevent contact with the air before use, and store the heating element 1 in an airtight packaging bag (not shown) with no air circulation. At the time of use, take out the warming piece 1 after opening the packaging bag. In addition, the pair of ear hooks 4L, 4R are unfolded from the closed state, so that each of the second joint portions 29L, 29R (eye covering portion) of the main body 2 corresponds to the left and right eyes of the user to connect the main body 2 with the user. While touching the face, stretch the pair of ear hooks 4L and 4R toward the outside while hooking the ears. In this way, the heat emitted by the self-heating material 3 is used to impart warmth to the left and right eyes and around each eye.

According to the heating element 1 of this embodiment, when worn on the face, the lower edge 21 of the main body 2 is curved into a concave shape in the horizontal center portion, and the middle is greatly concave. Therefore, the main body 2 is easily placed in the horizontal center position. The longitudinal center line 24 is folded in half and deformed along the shape of the face. Therefore, the main body 2 adheres to the user's face with good fit.

In addition, according to the heating element 1 of the present embodiment, the joint 5 between the pair of ear hooks 4L, 4R and the main body 2 has a slightly L-shape in which the lower end side protrudes toward the inner side than the upper end side. Therefore, as shown in FIG. 6, when the pair of ear hooks 4L, 4R are stretched laterally outward with respect to the main body 2 to hang the ears, the area on the lower side of the left and right ends of the main body 2 (the lower side of the main body 2 The left and right corners 25 and 26 near the left and right corners 25 and 26) are subjected to strong pulling force and bend toward the longitudinal direction of the main body 2 and then deform to bend toward the user's face side (the front side in the figure in FIG. 6). The left and right corners 25, 26 on the lower side of the main body 2 are equivalent to the cheekbones under the eyes when the heating element 1 is worn on the face. Even if the cheekbones protrude, they will be curved along the surface to cover the cheekbones. Nearby, it fits on the face without floating from the face. Therefore, the main body 2 can be more closely adhered to the user's face, and the heat generated from the heating material 3 can be prevented from escaping to the outside.

In addition, according to the heating element 1 of the present embodiment, since the filling rate of the heating material 3 in the eye covering portions 8L, 8R of the main body 2 is lower than that of the surrounding covering portion 9, it is better not to contain the heating material 3, which is derived from heating Material 3 has weak or no heat. In addition, the eye covering parts 8L, 8R of the main body 2 are separated from the surrounding covering part 9 so that heat conduction from the surrounding covering part 9 to the eye covering parts 8L, 8R can be suppressed. Therefore, it is possible to suppress the temperature of each eye covering portion 8L, 8R of the main body portion 2 from increasing. Therefore, when the heating element 1 is worn on the face, the left and right eyes (eyeballs) will not be overheated at high temperature, but can be applied at an appropriate temperature.

In addition, according to the heating element 1 of the present embodiment, since the main body portion 2 is separated from the surrounding covering portion 9 inside the eye covering portions 8L, 8R with low filling rate of the heating material 3, the maximum temperature of the main body portion 2 can be lowered. , And can suppress the local high temperature rise of the main body 2. Furthermore, increasing the area of the high-temperature region containing the highest temperature that has fallen can improve the uniformity of the temperature distribution. Therefore, when the heating element 1 is worn on the face, it is possible to apply heat to the left and right eye circumferences at a uniform and appropriate temperature in a wide range.

In addition, according to the warming element 1 of this embodiment, the eye covering parts 8L and 8R of the main body 2 cover the left and right eyes when worn on the face, so that it can be used as an eye mask at bedtime to fully exert its effect and be equipped with When it is worn on the face, the left and right eyes will not be in contact with external air, so it rarely feels uncomfortable. Furthermore, since the heat generated from the heat generating material 3 of the surrounding covering portion 9 of the main body 2 when the heating element 1 is worn on the face can be prevented from easily dissipating to the outside air, it can effectively impart warmth around the left and right eyes.

In addition, according to the heating element 1 of the present embodiment, since the heating material 3 contacts the air to generate heat, it is more convenient than a heating element that uses a material that generates heat by receiving microwaves such as red beans, such as red beans. It can be used steadily, and it can continue to heat up for a long time. In this way, the heating element 1 of the present embodiment uses the heating material 3 that generates heat by contact with the air, which imparts a warming effect to the eyes (eyeballs) for a long time, and the effect on the eyes (eyeballs) also increases, but it will not Excessively hot compress the eye (eyeball) at high temperature, you can apply heat at an appropriate temperature, so even if the eye (eyeball) warming effect is given for a long time, the adverse effect on the eye (eyeball) can still be suppressed.

In addition, according to the present embodiment, the heating element 1 has a pair of ear hooks 4L, 4R, which prevents the body part 2 from shifting from the wearing part of the face when it is worn on the face. The body part 2 can be firmly attached to the wearing part of the face both in the sitting state and the sleeping state. Therefore, it can effectively impart a warming effect to the left and right eyes and around each eye. For example, in the heating element using red beans as the heating material, the weight of the red beans can make the main body fit firmly to the wearing part of the face due to the heavy weight of the red beans. However, the heating material 3 of this embodiment is, for example, The heating material 3 with iron powder as the main component is light in weight, and the weight of the heating material 3 cannot make the body part 2 fit firmly to the wearing part of the face. Therefore, by having a pair of ear hooks 4L, 4R, even if the user moves, the main body 2 will not be displaced from the wearing part of the face, especially when worn at bedtime, even if the user turns over , The body part 2 will not leave the wearing part of the face, and it can fit firmly.

The embodiments of the present invention are described above, but the present invention is not limited by the foregoing embodiments, and various changes can be made without departing from the spirit of the present invention.

As a modification example, in the foregoing embodiment, the shape of each joint 5 presents a slightly L shape with the lower end side protruding toward the inner side from the upper end side, but it is not limited to it, as long as a pair of ear hooks 4L can be attached. If 4R is joined to the main body part 2, it can be made into various shapes. In addition, the unfolded state of the pair of ear hooks 4L, 4R does not necessarily extend in a form extending obliquely downward with respect to the lateral direction of the main body part 2, and may also be deployed in a form extending parallel to the lateral direction of the main body part 2.

In terms of other modified examples, in the foregoing embodiment, as shown in FIGS. 3, 5, and 7(A), a pair of ear hooks 4L, 4R are folded back and unfolded by each joint 5, so that they can be arranged on the ears. However, as shown in Fig. 7(B), the pair of ear hooks 4L, 4R can be expanded laterally of the main body 2 in the normal state, and the ends can be joined to the left and right ends of the main body 2. Department.

In terms of other modified examples, in the foregoing embodiment, as shown in FIG.

In terms of other modified examples, in the foregoing embodiment, as shown in FIG. 1, the storage area for the heating material 3 in the main body 2 is connected between the left and right eye covering parts 29L, 29R, but as shown in FIG. A third joining portion 30 extending parallel to the longitudinal direction of the main body 2 is provided along the longitudinal center line 24 between the covering portions 29L and 29R. The third bonding portion 30 is the same as the first bonding portion 28 and the second bonding portions 29L, 29R, and is well-known by heat bonding (heat sealing), pressure bonding using a known adhesive, ultrasonic bonding, etc. Method, or a combination of these methods, join the parts of the two sheets 27A, 27B constituting the main body 2.

In terms of other modified examples, in the foregoing embodiment, the heating element 1 has a pair of ear hooks 4L, 4R, but it is not necessary to have a pair of ear hooks 4L, 4R. [Example]

Hereinafter, the present invention will be explained with examples. However, the present invention is not limited by the following examples.

In the embodiment, in each eye covering part of the main body, two sheets are heat-sealed and separated from the surrounding covering part, and at the same time, each eye covering part does not contain a heating element of a heat generating material. In Comparative Example 1, each eye covering part manufactured in the main body part was not joined with two sheets, and each eye covering part was connected to the surrounding covering part, and each eye covering part contained a heating element of a heat generating material. In Comparative Example 2, a heating element in which each eye covering part of the main body part is made into a through hole was manufactured. As shown in Fig. 1(A), the main body of the heating element of each example is flat and formed in a horizontally long shape when viewed from a plan view. The horizontal width of the main body is set to 205mm and the vertical width is set to 110mm. Each eye covering part is formed in a horizontally long, slightly elliptical shape in a plan view angle, and the horizontal width of each eye covering part is set to 30 mm and the vertical width is set to 15 mm. The width dimension of the first joint is 30 mm at the widest part and 7 mm at the narrowest part. In the Examples and Comparative Examples 1 and 2, the heating material and the materials of the main body were all used in common. The main body is formed of two sheets, and the two sheets are laminated with a polyethylene terephthalate non-woven fabric and a polyethylene terephthalate resin film. The heating material includes 55% iron powder, 11% activated carbon, 2% vermiculite, 3% water-absorbent resin, 1.5% salt and 27.5% water. In all cases, 20g of the heating material is contained in the main body.

For the embodiment and each comparative example 1,2, the temperature of the main body when the main body is heated by thermal imaging is photographed in a room at a temperature of 20°C, and the result of comparing the temperature distribution is shown in FIG. 9. In addition, the maximum temperature and the average temperature of the main body were calculated for the examples and each comparative example 1 and 2. Furthermore, for Example and Comparative Example 2, the maximum temperature and the average temperature are the temperatures in the surrounding covering part of the main body except for the covering parts of the eyes. The results are shown in Table 1.

[Table 1]

Referring to Figure 9, the eye coverings of the main body in Comparative Example 1 clearly show a distinct white color, and the temperature is quite high. In contrast, the eye coverings of the main body in the embodiment are shown in yellow or yellow-green, indicating the temperature Low. Regarding the surrounding covering part of the main body part, the vicinity of each eye covering part in Comparative Example 1 clearly shows a distinct white color, and the part far away from each eye covering part shows red color, and the temperature rises locally. In contrast, implementation In the example, it is indicated by a substantially uniform red color, and it can be seen that there is no local temperature rise but a uniform temperature distribution. It can be seen from Table 1 that the maximum temperature and the average temperature are both higher in Comparative Example 1 than in the Examples. In this way, compared with Comparative Example 1, in this embodiment, it can be confirmed that each eye covering part of the main body part does not become a high temperature, but can be at an appropriate temperature. In addition, compared with Comparative Example 1, it can be confirmed in the embodiment that the maximum temperature of the main body is decreased, the local temperature increase can be suppressed, and the area of the high temperature region including the decreased maximum temperature is increased, and the uniformity of the temperature distribution is improved.

On the other hand, referring to FIG. 9, in Comparative Example 2, each eye covering portion of the main body portion is shown in green, and it can be seen that the temperature is lower than that of the embodiment. Regarding the surrounding covering part of the main body part, it can be seen that in Comparative Example 2 the same as the embodiment, although lowering the maximum temperature of the main body part can suppress the local high temperature rise, the overall temperature is lower than that of the embodiment, and the uniformity of the temperature distribution is also Difference. Even referring to Table 1, it can be seen that both the maximum temperature and the average temperature are lower in Comparative Example 2 than in the Example, and the temperature difference between the eye covering part and the surrounding covering part is also smaller in the Example. In this way, compared with Comparative Example 2, in this example, the temperature of each eye covering part of the main body can be increased, the left and right eyes can be properly heated, and the temperature difference between each eye covering part and the surrounding covering part can be reduced. It can be confirmed that the wearing time can be reduced It’s uncomfortable. In addition, compared with Comparative Example 2, the maximum temperature of the surrounding covering portion of the main body portion in the Example is higher, and the high-temperature area including the maximum temperature is uniformly distributed, and it can be confirmed that the warmth around the left and right eyes is effectively imparted.

Furthermore, in the reference example, the main body is made to house a heating element for red beans that generates heat by receiving microwaves such as microwave irradiation, instead of the heat generating material used in the above embodiments, etc., which generates heat by contact with the air. Thermal imaging is used to capture the temperature of the main body when it heats up indoors at 20°C. Reference example 1 is that each eye covering part of the main body part does not contain a heating element of red beans, and reference example 2 is that each eye covering part of the main body part is connected to the surrounding covering part, and each eye covering part contains a heating element of a heat-generating material. After comparing the temperature distribution of each reference example 1 and 2, the result is shown in Figure 10.

10, in Reference Example 1, it could not be confirmed that as in Comparative Example 1, the temperature of the surrounding covering part around each eye covering part of the main body part increased. In addition, it cannot be confirmed in Reference Example 2 that the area of the high-temperature region in the surrounding covering part around each eye covering part of the main body increases as in the embodiment, and the uniformity of the temperature distribution can be improved.

Based on Reference Example 1, the heating element using red beans is different from the heating element using the heating material of the present invention. By receiving microwave irradiation such as microwave oven, the moisture in the red beans is heated to generate heat, so the temperature distribution of the main body Depending on the distribution of the red beans in the main body, if the red beans are uniformly housed in the main body, the temperature distribution is also uniform, and there is no local temperature rise. In contrast, even if the heat-generating material that generates heat by contact with the air is uniformly contained in the main body, as in Comparative Example 1, the temperature rises locally in the surrounding covering portion of the main body. In this way, the temperature rises locally in the surrounding covering part of the main body, thereby causing uneven temperature distribution of the main body, which is a unique problem of the heating element of the present invention that uses a heating material that generates heat by contact with air. There are no issues related to the use of a heating element with red beans. Therefore, by making the filling rate of the heating material of the eye covering part of the main body lower than that of the surrounding covering part, the temperature rise in the main body part is suppressed and the high temperature range The increase in the area and the effect of improving the uniformity of the temperature distribution is an unpredictable effect from the use of a heating element with red beans.

1: Warm parts 2: body part 3: heating material 4L, 4R: ear hook 5: Joint 6: Main part 7: Protruding part 8L, 8R: eye covering 9: Surrounding covering part 20: upper edge 21: bottom edge 22: The left edge of the main body 23: The right edge of the main body 24: Vertical centerline 25: The left corner of the lower side of the main body 26: The right corner of the lower side of the main body 27A, 27B: sheet 28: The first joint 29L, 29R: 2nd junction 30: The third junction 40: opening 50: Outer side edge 51: inner side edge X1-X1: line

Fig. 1(A) is a front view of the heating element according to the embodiment, and Fig. 1(B) is a rear view of the heating element according to the embodiment. Figure 2 is a perspective view of the heating element of the embodiment. Fig. 3 is a rear view showing a state in which a pair of ear hooks are unfolded in the heating element of the embodiment. Fig. 4 is a cross-sectional view of X1-X1 in Fig. 3. Figure 5 is a rear view of the main body. Fig. 6 is a rear view of the main body part when the pair of ear hooks are stretched to the laterally outer side of the main body part in the heating element of the embodiment. Fig. 7(A) is a schematic cross-sectional view showing the relationship between the main body and the earhook of the heating element of this embodiment, and Fig. 7(B) is a schematic showing the relation between the main body and the earhook of the heating element of the modification example Sectional view. Fig. 8(A) is a front view of the heating element of the modification, and Fig. 8(B) is a rear view of the heating element of the modification. Fig. 9 is a graph showing the temperature distribution of the main body of the embodiment and the comparative example. Fig. 10 is a graph showing the temperature distribution of the main body of the reference example.

1: Warm parts

2: body part

4L, 4R: ear hook

5: Joint

6: Main part

7: Protruding part

8L, 8R: eye covering

9: Surrounding covering part

20: upper edge

21: bottom edge

22: The left edge of the main body

23: The right edge of the main body

24: Vertical centerline

25: The left corner of the lower side of the main body

26: The right corner of the lower side of the main body

27A, 27B: sheet

28: The first joint

29L, 29R: 2nd junction

40: opening

50: Outer side edge

51: inner side edge

Claims (3)

A warming piece is an eye mask type warming piece that is worn on the face of the user and has: Heat-generating material, which generates heat by contact with air; and The main body part contains the aforementioned heating material and covers the left and right eyes and around each eye when worn; In the aforementioned body part, the eye covering part corresponding to the eye part when worn is separated from the surrounding covering part corresponding to the eye circumference part; The filling rate of the heat generating material of the eye covering part is lower than that of the surrounding covering part. The heating element of claim 1, wherein the eye covering part does not contain the heating material. For example, the heating element of claim 1 or 2 further has a pair of ear hooks that are hung on the ears when worn.

Images