KR20120003383U - Cup holding sleeve having alert function for heat - Google Patents

Abstract

A cup support sleeve with a temperature alert function is provided. Cup support sleeve having a temperature notification function according to the present invention is the upper and lower openings so that the cup can be fixed in the inserted state and the support body is a narrow shape of the lower width than the upper and attached to one surface of the support body And a thermochromic part which is discolored by temperature change.

Description

Cup support sleeve with temperature reminder {CUP HOLDING SLEEVE HAVING ALERT FUNCTION FOR HEAT}

The present invention relates to a cup support sleeve having a temperature notification function, and more particularly to a cup support sleeve to perform a heat insulation function by inserting into a cup containing a high temperature or low temperature contents.

In recent years, as the individual personality is emphasized, the conventional simple and uniformly designed daily living products have been changed in various ways. Among them, many cups used for drinking liquid contents have been released in various forms. Especially, takeout-type coffee shops are created, and when the contents of hot liquid are transported to the outside, burns can be burned to the hands. In addition to acting as a heat insulator to wear, a variety of cup holder to cup support sleeve products having a beautiful design formed on the outer surface is used to increase the user's satisfaction.

Cup supporting sleeves for supporting cups containing high or low temperature contents are generally cylindrical in shape, with the upper and lower portions open, and inserting a cup filled with contents into the sleeve so that the gripping hand does not directly touch the cup. As a result, the thermal insulation function is performed. Depending on the product, a cup support sleeve may be made of various insulating materials.

Due to the heat insulation effect, it may be difficult for a user to obtain information about how hot the contents are even when the user touches the sleeve surrounding the cup containing the contents. In particular, in the case of a reusable sleeve made of a material having excellent thermal conductivity rather than a thin sleeve made of a paper material used for single use, it may be difficult to intuitively determine whether the internal contents are high temperature.

For this reason, if a hot drink is contained in the inner space of the cup, which is covered by a sleeve covered with a cover on the top of the cup, there is a possibility that a user who does not know that the temperature of the drink is high without cooling enough to drink it, In particular, when a youth or the like drink the contents of a cup wrapped in a sleeve, there is a possibility of inadvertently drinking a hot drink. In this case, there is a high risk of burns in the oral cavity or parts of the esophagus, etc., and there is a risk of secondary safety accidents due to reduced concentration due to burns.

Therefore, it is necessary to configure the internal temperature of the cup wrapped in the sleeve which is an insulator, which can be intuitively confirmed from the outside, and it is necessary that such a temperature display is made within a range that does not impair the external design of the cup support sleeve. Do. In addition, reflecting the recent interest in environmentally friendly products, it is necessary to provide a reusable cup support sleeve rather than a disposable product.

The present invention has been conceived to solve the above problems, the problem to be solved by the present invention is the color of the outer surface of the cup support sleeve wrapped close to the outer surface of the cup in accordance with the temperature of the contents of the cup is discolored with the naked eye It is to provide a cup support sleeve having a temperature notification function that can intuitively check the temperature.

Another problem to be solved by the present invention is to provide a beautiful cup support sleeve without the temperature notification function of the cup does not harm the appearance of the cup support sleeve.

Another object of the present invention is to provide a cup support sleeve that is reusable and capable of temperature notification.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

Cup support sleeve having a temperature notification function according to the present invention, the upper and lower portions are open so that the cup can be fixed in the inserted state and the support body is a narrow shape of the lower width than the upper portion, and one side of the support body It includes a thermochromic portion attached and discolored by the temperature change.

A more detailed example of the cup support sleeve having a temperature notification function according to the present invention will be described later in the embodiments with reference to the drawings.

According to the present invention, the cup support sleeve having a temperature notification function that can intuitively check the temperature of the contents with the naked eye by changing the color of the outer surface of the cup support sleeve wrapped close to the outer surface of the cup according to the temperature of the contents inside the cup Can be provided.

In addition, the temperature notification function of the cup support sleeve can provide a cup support sleeve that enhances the appearance more beautifully without harming the appearance of the cup support sleeve.

In addition, it is possible to provide a cup support sleeve that is reusable and capable of temperature notification.

Effects according to the present invention is not limited by the contents exemplified above, more various effects are included in the present specification.

1 is a perspective view showing a cup inserted into the cup support sleeve having a temperature notification function according to an embodiment of the present invention.
Figure 2 is a separate view showing a cup support sleeve having a temperature notification function according to an embodiment of the present invention, (a) shows the cup support sleeve of the insert unfoldable form, (b) is portable A cup support sleeve in a folded form is shown.
Figure 3 is a cross-sectional view showing a honeycomb structure of the support body according to an embodiment of the present invention.
Figure 4 is a cross-sectional view showing a laminated structure of the thermochromic portion constituting the cup support sleeve having a temperature notification function according to an embodiment of the present invention.
5 is a cross-sectional view showing another laminated structure of the thermochromic portion constituting the cup support sleeve having a temperature notification function according to an embodiment of the present invention.
FIG. 6 is a view illustrating a principle of color change according to the configuration of FIG. 5.
Figure 7 is a cross-sectional view showing another laminated structure of the thermochromic portion constituting the cup support sleeve having a temperature notification function according to an embodiment of the present invention.
8 is a view illustrating a principle of color change according to the configuration of FIG.

Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. It should be understood, however, that the present invention is not limited to the embodiments disclosed herein but may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of the invention to those skilled in the art. Is provided to fully inform the owner of the category of design, and the design is only defined by the scope of the claim.

With reference to the accompanying drawings will be described in detail for the implementation of the present invention in detail. Regardless of the drawings, the same reference numbers refer to the same components, and “and / or” includes each and every combination of one or more of the items mentioned.

Although the first, second, etc. are used to describe various components, these components are of course not limited by these terms. These terms are only used to distinguish one component from another. Therefore, of course, the first component mentioned below may be the second component within the technical spirit of the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used herein, "comprises" and / or "comprising" does not exclude the presence or addition of one or more other components in addition to the mentioned components.

Unless otherwise defined, all terms used in the present specification (including technical and scientific terms) may be used as meanings that can be commonly understood by those skilled in the art. In addition, the terms defined in the commonly used dictionaries are not ideally or excessively interpreted unless they are specifically defined clearly.

The spatially relative terms " below ", " beneath ", " lower ", " above ", " upper " It may be used to easily describe the correlation of a component with other components. Spatially relative terms are to be understood as including terms in different directions of components in use or operation in addition to the directions shown in the figures. For example, when inverting an element shown in the figures, an element described as "below" or "beneath" of another element may be placed "above" another element . Thus, the exemplary term "below" can encompass both an orientation of above and below.

In addition, "discoloration" refers to a case where a certain color changes to another color, or refers to both the case of colorless (transparent) to color, or the case of color change to colorless (transparent).

Hereinafter, with reference to the accompanying drawings will be described embodiments of the present invention.

1 is a perspective view illustrating a cup inserted into a cup support sleeve having a temperature notification function according to an embodiment of the present invention, Figure 2 is a cup support sleeve having a temperature notification function according to an embodiment of the present invention As a separate drawing, (a) shows the cup support sleeve of the insert unfoldable form, (b) shows the cup support sleeve of the folded form to be portable, Figure 3 is It is sectional drawing which shows the honeycomb structure of the support body which concerns on one Embodiment.

Cup support sleeve having a temperature notification function according to an embodiment of the present invention is the upper and lower portions open so that the cup can be fixed in the inserted state and the width of the lower portion 15 compared to the upper portion 10 is narrow The body 20 and the thermochromic portion 40 attached to one surface of the support body 20 and discolored by a temperature change.

As shown in FIG. 2 having a low thermal conductivity, the support body 20 has a shape in which the upper and lower portions 10 and 15 are open, and a larger opening area of the upper portion 10 than the lower portion 15. The shape may vary depending on the shape of the cup for insertion. That is, the open area of the upper portion 10 may have a large truncated cone shape so as to insert and fix a circular cup, and may have another shape for inserting another cup.

The support body 20 mainly performs a heat-insulating function to protect the hot water from being heated from the hot drink when the cup is put into the cup, and the user's grip part, for example, directly, to prevent burns. . On the contrary, even if a cold drink close to 0 ° C. is contained in the cup, the insulating function may be performed to easily transport the cup.

As shown in FIG. 3, the support body 20 may have a honeycomb structure formed at a cross section of the support body 20 so as to have an excellent heat shielding effect. The honeycomb structure has excellent heat shielding effect because it contains a lot of air layers to insulate the interior. The support body 20 may be made of a paper material having a honeycomb structure as described above, and may be made of a material including one or more of natural fibers and synthetic fibers. The honeycomb structure may be formed due to the tissue woven from natural fibers or synthetic fibers. Even when the support body 20 is made of natural or synthetic fibers, it can be recycled, and even if made of paper, it can be recycled.

In addition, the interior of the support body 20 may include a heat insulating material for performing a heat insulating function. In addition to the honeycomb structure as described above, an insulating material such as expanded polystyrene (styrofoam) or polyurethane may be included.

Although not shown, the support body 20 has a detachable part which can be bonded to one end and the other end of the support body 20 in addition to being foldable as shown in FIG. When wrapped in a cup and attaching one end and the other end performs a sleeve function, when the one end and the other end of the support body 20 is detached, the thickness can be made thin so that it can be easily stored.

The outer surface of the support body 20 may be further provided with a display unit 30, the display unit 30 may include information such as patterns or patterns to make the appearance of the cup support sleeve more beautiful. have. In addition, when ordering the cup support sleeve separately, the outer peripheral surface may include the desired phrase or photograph. As described below, the display unit 30 may be colored with a thermochromic ink constituting the thermochromic portion 40 so that a part of the phrase, photograph or pattern displayed by the display unit 30 is discolored by heat. It can be configured to make the appearance of the cup support sleeve according to the present embodiment more beautiful. In addition, when the display unit 30 and a part of the thermochromic unit 40 to be described later overlap each other, the thermochromic unit 40 is discolored by heat transferred from the contents of the cup, so that the color of the information indicated by the display unit 30 is changed. It may change to reveal new visual effects.

As described above, when the heat insulating material is interposed in the support body 20, since heat transferred from the inner circumferential surface of the support body 20 directly in contact with the cup may be insufficient, the thermochromic discoloration may occur. The portion 40 is formed on the inner circumferential surface of the support body 20, and a portion of the support body 20 on which the thermochromic portion 40 is formed on the inner circumferential surface is exposed to the outside by the thermochromic portion 40. Openings may be formed for identification. That is, the thermochromic portion 40 is attached to the inner circumferential surface of the support body 20, and openings are formed in the inner and outer circumferential surfaces of the support body 20 at positions corresponding to the thermochromic portion 40. It is configured to identify the thermochromic portion 40 formed on the inner peripheral surface of the 20, it is possible to maximize the effect that the thermochromic color portion 40 is discolored according to the internal temperature of the cup.

The thermochromic portion 40 includes a thermochromic ink in which a color different from the existing color is received by receiving heat, and a specific color is expressed according to an external temperature or a specific color disappears. The thermochromic portion 40 may be formed by spraying, printing, or coating a thermochromic dye on a paper material. In addition, the thermochromic dye 40 may be sprayed, printed, or coated on a thin film substrate as described below. However, the present invention is not limited thereto and may be implemented in various other forms.

Therefore, at room temperature, the cup support sleeve according to the present embodiment is kept colorless, for example, and when the hot beverage is contained in the cup wrapped by the cup support sleeve, the heat is transferred from the hot beverage to the thermochromic portion 40. Therefore, for example, a color such as red may be expressed. In addition to the case where the high temperature contents are contained in the cup, even if the low temperature contents are contained, the temperature of the thermochromic portion 40 may be changed by the low temperature inside so as to discolor. That is, it may be provided with a thermochromic portion 40 using a thermochromic dye that is discolored when a predetermined temperature or less. The specific configuration of the thermochromic portion 40 will be described later in detail with reference to FIGS. 4 to 8.

Thus, the cup support sleeve having a temperature notification function according to the present embodiment has a thermochromic portion 40 attached to one surface of the support body 20, so that the hot contents are inserted into the cup inserted into the cup support sleeve. If it is contained, it is discolored by the heat transferred from the high temperature contents, so that the user of the cup support sleeve intuitively knows that the contents are high temperature and needs to cool down sufficiently before drinking. It changes color to indicate that it is a suitable temperature for drinking.

As will be described later, the thermochromic portion 40 is coated on a substrate using a thermochromic dye which is discolored in various colors at different temperatures, or is provided in a form of directly coloring a thermochromic dye on a part of the display portion 30. As a result, the entire side surface of the cup support sleeve may be discolored, and a portion of the display unit 30 may be discolored. For example, when a predetermined pattern is displayed along with a caution statement to be careful of high temperature on the display unit 30, the caution statement is displayed using a thermochromic dye that is colorless at 50 ° C. or lower and turns red at 50 ° C. or higher. If the cup support sleeve is filled with a beverage at 80 ° C, the caution text will turn red. Therefore, it is possible to draw attention of the user, especially infants or children, so as not to drink hot drinks immediately.

Next, with reference to Figures 4 to 8, it will be described for the thermochromic portion constituting the sleeve for supporting the cup having a temperature notification function according to an embodiment of the present invention. Figure 4 is a cross-sectional view showing a laminated structure of the thermochromic portion constituting the cup support sleeve having a temperature notification function according to an embodiment of the present invention, Figure 5 has a temperature notification function according to an embodiment of the present invention 6 is a cross-sectional view illustrating another laminated structure of the thermochromic portion constituting the cup support sleeve, FIG. 6 is a view illustrating a principle of color change according to the configuration of FIG. 5, and FIG. 7 is a temperature notice according to an embodiment of the present invention. FIG. 9 is a cross-sectional view illustrating another laminated structure of the thermochromic portion constituting the cup support sleeve having a function, and FIG. 9 is a view illustrating a principle of color change according to the configuration of FIG. 8.

The thermochromic portion 40 of the cup support sleeve having the temperature notification function according to the present embodiment is formed on at least one surface of the substrate 41 and the substrate and has a first color but is discolored at a first temperature. The color change layer 43 may be further included. Furthermore, the color change layer 43 may further include a second color change layer 43 having a second color and being discolored at a second temperature. That is, when the thermochromic layer 40 is composed of one or more thermochromic layers, various colors are expressed according to respective expression temperatures, thereby providing more accurate temperature information to the user.

The base 41 is a configuration forming the center of the thermochromic portion 40 and functions to protect and support the thermochromic layers 42 and 43. The base 41 may be in the form of an optical sheet made of synthetic resin, in addition, may be a transparent plastic-based, or may be an opaque material. Substrate 41 is a tough and light material in the form of a film is preferably made of PVC or PET excellent in the protective action. However, the present invention is not limited thereto and may be made of various other materials.

The first thermochromic layer 42 serves to change the color of the thermochromic portion 40 of the cup support sleeve having the temperature notification function according to the present embodiment according to the actual temperature. The first thermochromic layer 42 may refer to a form in which a thermochromic dye is coated on a transparent ultra-thin sheet or a layer itself on which a thermochromic dye is formed, which is also configured in the second thermochromic layer 43 to be described later. Can have Thermochromic ink refers to a special dye in which a specific color is expressed or disappears depending on the external temperature. Depending on the manufacturing method, various colors may be expressed or disappeared by various reaction temperatures. Thermochromic dye particles have a size in micro units, and the form can be made in the form of capsules or slurries. In addition, when the temperature rises or falls, the color is changed into a reversible pigment that is changed and then returned, and once the temperature is changed, the color is permanently changed into an irreversible dye that does not return to its original state.

Thermochromic dyes maintain a constant chemical bonding structure above the induction temperature, but below the induction temperature, the chemical bonding structure is deformed to reflect light of a specific wavelength and exhibit a color. If the temperature is maintained above the induction temperature, the chemical bond structure is deformed to reflect the light of a specific wavelength, thereby producing a color. That is, it is divided into a high temperature thermochromic dye and a low temperature thermochromic dye, and thus a cup support sleeve having a temperature notification function according to the present invention may also be manufactured in a form in which a high temperature sensing film and a low temperature sensing film are attached to the support body 20. It may be. In addition, each structure has a type that is colorless in the temperature range outside the induction temperature but colored in the temperature range within the induction range. On the contrary, it may be manufactured in a type that changes colorless in the temperature range within the induction temperature range. It may be produced in a type that changes from colored to other colors. Various types as described above may be combined to display a desired color above or below a specific temperature according to a required condition.

The thermochromic layers 42 and 43 coated with the thermochromic ink may be formed on one surface of the substrate 41, but as described above, the thermochromic portion 40 is directly formed on a portion of the display portion 30. In this case, the thermochromic layers 42 and 43 may be directly formed on the surface of the display unit 30 without a separate substrate 41.

The first thermochromic layer 42 of the present embodiment includes the thermochromic dye, and the color changes when the temperature becomes higher than a certain high temperature, or the color changes when the temperature becomes lower than a predetermined low temperature so that the user can detect it. Hot beverages, for example coffee, are provided in a cup inserted into a cup support sleeve at a temperature of 80 ° C. to 90 ° C. If the coffee at that temperature is consumed immediately, there is a risk of burns. Therefore, the first thermochromic layer 42 employing a thermochromic dye that discolors when heat is transferred from the hot coffee to the first thermochromic layer 42 according to the present embodiment for a predetermined time, for example, 1 minute. In this case, the user may sense that the user has reached the appropriate drinking temperature by discoloring such as discoloration, for example, changing from red to transparent color when the drinking temperature is reached.

The second thermochromic layer 43 to which the thermochromic dye of the same principle as the first thermochromic layer 42 is applied may be further added, and the first thermochromic layer 42 and the second thermochromic layer 43 are The response temperature or the expression color may be different from each other. That is, the color of the first thermochromic layer 42 is expressed at 60 ° C. or lower, and the color of the second thermochromic layer 43 is expressed at 80 ° C. or higher, so that the user can detect the temperature rise step by step. That is, when the hot beverage is provided to the cup support sleeve and exposed at a temperature of 80 ° C. or more for a predetermined time, the chemical structure of the second thermochromic layer 43 is deformed and thus the second thermochromic layer ( 43), for example, red may be expressed, and as time passes, when heat is transferred for a predetermined time at 60 ° C. or higher and 80 ° C. or lower, this time of the first thermochromic layer 42 When the color develops but the temperature falls below 60 ° C., the chemical structure of the first thermochromic layer 42 is deformed, and the color of the first thermochromic layer 42 becomes colorless, and a warning message for high temperature is displayed. You can make it disappear. Therefore, the user can visually confirm that the warning phrase has disappeared and can grasp that the contents have reached the appropriate drinking temperature.

Since the first and second thermochromic layers 42 and 43 are included, the colors of the first or second thermochromic layers are not individually expressed, and the colors of the first and second thermochromic layers 42 and 43 are It may be expressed by mixing.

That is, FIG. 6 is a view showing a structure in which a mixed color is expressed, for example, a color (B) expressed by the first thermochromic layer and a color (C) expressed by the second thermochromic layer are mixed. Color A may be expressed. For example, when the first thermochromic layer 42 expresses the color B at 50 ° C., and the second thermochromic layer 43 exhibits the color C at 60 ° C., the temperature gradually increases at room temperature. As it rises, the color may change from B to A.

On the other hand, in the case where a thermochromic ink that dissipates the color above the sensitive temperature is used, the color of the first and the second thermochromic layers 42 and 43 is expressed at 50 ° C. or lower, so that A color is shown, and then 50 ° C. In the above, since the first thermochromic layer reacts and the color disappears, only the C color is expressed. In this case, thermochromic ink particles having a primary color such as intense red may be used in C so that a high temperature warning notification can be surely delivered to the user.

7 is a cross-sectional view showing another laminated structure of the thermochromic portion constituting the cup support sleeve having a temperature notification function according to an embodiment of the present invention, the base material 41 and the first color having a first temperature A first thermochromic layer 42 discolored at, a second thermochromic layer 43 having a second color and discolored at a second temperature, and a colored layer 44 having a constant color and not changing with temperature. Include.

The colored layer 44 is a layer having a constant color and, unlike the first and second thermochromic layers 42 and 43, does not discolor in response to temperature. Therefore, the color of the colored layer 44 is continuously expressed regardless of the temperature. The principle of color change of the cup support sleeve having a temperature notification function according to an embodiment of the present invention including a colored layer 44 is shown in FIG. 8.

For example, when the thermochromic dye used in the cup support sleeve having a temperature notification function according to an embodiment of the present invention is more than the reaction temperature, the chemical bond is separated and transparently discolored, and the first thermochromic layer The first temperature at which the color 42 is discolored (colorless) is 50 ° C, and the second temperature at which the second thermochromic layer 43 is discolored (colorless) is 60 ° C, and all the color layers 42, 43, 44 are Let's assume that the colors are different. At this time, when the colors of the color layers 42, 43, and 44 are H, I, and J, respectively, at 50 degrees or less, the color D is a mixed color of three colors, and heat is prevented by the contents contained in the cup support sleeve. When it is transmitted to the thermochromic portion 40 and rises above 50 ° C., the color H of the first thermochromic layer 42 disappears to represent G color. When the heat transferred to the thermochromic portion 40 increases, the color I of the second thermochromic layer 43 disappears when the temperature is 60 ° C. or more, so that only J color, which is the color of the colored layer 44, is finally removed. Expressed.

Specifically, the first to third color change layer may be provided, and the first to third color change layers may be formed of three primary colors of red, blue, and yellow, respectively, to express various colors by mixing them. According to this principle, various color combinations can be implemented, and a plurality of thermochromic layers may be used in addition to the first and second thermochromic layers, and as described above, in addition to the type in which the color is dissipated and transparently discolored above the temperature of response. A type may be adopted in which the color is expressed above the response temperature, and a type may be used in which the color is expressed or disappeared below the response temperature. Therefore, the user can detect the color changing in a predetermined form in accordance with the rise in temperature, so that the contents of the inside of the cup within the proper temperature range by the cup support sleeve having a temperature notification function according to the present invention without a separate temperature sensor It can be easily checked with the naked eye, and safety accidents such as burns can be prevented in advance.

In the above embodiment, the structure having the first and second thermochromic layers 42 and 43 has been described, but it is obvious that the third or more thermochromic layers can be added. Detailed temperature information for each temperature section can be delivered to the user through color.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above embodiments, and may be manufactured in various forms within the scope of the present invention, and the present invention belongs to Those skilled in the art will understand that it can be implemented in other specific forms without changing the technical spirit or essential features of the present invention, the embodiments described above are exemplary in all respects and limited It is not limited to form.

10: upper part
15: lower
20 support body
30: display unit
40: thermochromic part

Claims (12)

A support body having a top and bottom portions open to be fixed in an inserted state and having a narrow width at a lower portion thereof compared to an upper portion thereof; And
Cup support sleeve having a temperature notification function attached to one surface of the support body and including a thermochromic discoloration that is discolored by a temperature change. The method of claim 1,
Cup support sleeve having a temperature notification function is attached to one side of the support body further comprises a display unit that can be identified from the outside. The method of claim 2,
The display portion and the thermochromic portion is a cup support sleeve having a temperature notification function a portion of which overlaps each other. The method of claim 1,
The thermochromic portion,
materials; And
A cup support sleeve formed on at least one surface of the substrate and having a first color but having a temperature notification function including a first thermochromic layer discolored at a first temperature. The method of claim 4, wherein
The base is a cup support sleeve having a temperature notification function that is an optical sheet made of synthetic resin. The method of claim 4, wherein
The thermochromic portion,
And a second thermochromic layer having a second color and discolored at a second temperature. The method of claim 4, wherein
The thermochromic portion,
Cup support sleeve having a temperature notification function further comprises a colored layer having a constant color and does not change with temperature. The method of claim 1,
The thermochromic portion is a cup support sleeve having a temperature notification function that is provided in the form of the thermochromic ink is colored on the support body. The method of claim 1,
The support body is formed in a predetermined thickness and a cup support sleeve having a temperature notification function consisting of a paper material having a honeycomb structure therein. The method of claim 1,
The support body is a cup support sleeve having a temperature notification function consisting of a material comprising at least one of natural fibers and synthetic fibers. The method of claim 1,
The support body has a cup support sleeve having a temperature notification function of the reverse shape of the larger truncated cone of the upper open side. The method of claim 1,
Cup support sleeve having a temperature notification function interposed inside the support body is expanded polystyrene or polyurethane.

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