KR102499165B1 - Hot pack pouch - Google Patents

Abstract

The present invention provides a hot pack pouch which comprises: a front cover (10); a rear cover (20) disposed on a rear surface of the front cover (10); a line cover (30) sewing and combining edges of the front cover (10) and the rear cover (20); and a plurality of heat transfer members (50) disposed on the front cover (10). According to the present invention, since a hot pack is stored in an insertion space and is supplied with outside air through a ventilation hole, the heating time be extended and the heat transfer members can store and transfer the heat of the hot pack.

Description

Hot pack pouch {Hot pack pouch}

The present invention relates to a hot pack pouch.

The hot pack is a disposable hand warmer and is a necessity for outdoor workers in winter.

Iron powder and a catalyst are contained in the non-woven bag, so when you tear off the plastic packaging and shake it, the iron mixes with the catalyst and oxidizes, generating heat.

It is small in volume, so it can be put in a pocket, attached to underwear, spread on shoes, or tucked in when transporting organisms (mainly aquatic organisms) in winter.

The heat of the hot pack rises quickly when kneaded for a long time, but there is a problem that the hand smells of iron because fine iron oxide particles leak out of the nonwoven fabric.

After opening the hot pack, even if you just open the vinyl, it gets hot by itself and the warmth lasts for a long time.

That is, since the entire nonwoven fabric of the conventional hot pack is exposed to the outside, there is a problem in that the variation in use time is very large.

Republic of Korea Utility Model Publication No. 20-2021-0000550 Republic of Korea Patent No. 10-2130809

The present invention has been made to solve the above conventional problems, and an object of the present invention is to provide a hot pack pouch capable of preventing burns and duration of heat generation.

The present invention is a front cover (10); a rear cover 20 disposed on a rear surface of the front cover 10; a line cover 30 for sewing the edges of the front cover 10 and the rear cover 20; A hot pack pouch including a plurality of heat transfer members 50 disposed on the front cover 10 is provided.

The heat transfer member 50 may include a mineral or ceramic having higher thermal conductivity than the front cover 10 and the rear cover 20 .

An insertion hole 101 into which the hot pack 100 is inserted is formed between the front cover 10 and the rear cover 20, and communicates with the insertion hole 101 between the front cover 10 and the rear cover 20 An insertion space 102 is formed, and a plurality of ventilation holes 25 communicating with the insertion space 102 through the rear cover 20 may be formed.

The rear cover 20 includes a first rear cover part 21 disposed on the rear surface of the front cover 10; and a second rear cover part 22 extending longer than the upper end 15 of the front cover 10, and the ventilation hole 25 is disposed to pass through the first rear cover part 21. can

The heat transfer member 50 includes an inner member 150 disposed inside the front cover 10 and penetrating the front cover 10; A plurality of outer members 250 disposed outside the front cover 10 and coupled to the inner member 150; the inner member 150 is formed of a metal material, and the inner member ( 150) includes an inner body 155 disposed between the front cover 10 and the rear cover 20; A first engaging member 156, a second engaging member 157, and a third engaging member 158 disposed on the front surface of the inner body 155 and engaging each outer member 250 with each other. can do.

First, according to the present invention, since the hot pack is accommodated in the insertion space and external air is supplied through the ventilation hole, the heating time can be extended and the heat transfer member can store and transfer the heat of the hot pack.

Second, since the heat transfer member of the present invention is fixed through interlocking and adhesive fixation of the inner member and the outer member, structural reliability can be secured by suppressing the separation of the outer member exposed to the outside from the front cover. .

Third, the present invention has the advantage of forming an effective contact area with the surface of the hot pack in various shapes because the inner member in contact with the hot pack can be rotated and adhered to the surface of the hot pack.

Fourth, the present invention has the advantage of being able to more effectively control the heat generation time of the hot pack because the ventilation holes can be selectively opened and closed through the heat generation time adjusting member.

1 is a perspective view of a hot pack pouch according to a first embodiment of the present invention.
Figure 2 is a front view of Figure 1;
Figure 3 is a rear view of Figure 1;
Figure 4 is a left side view of Figure 1;
Fig. 5 is a right side view of Fig. 1;
Figure 6 is a plan view of Figure 1;
Figure 7 is a bottom view of Figure 1;
FIG. 8 is an example of use of FIG. 1 .
9 is a front view of a hot pack pouch according to a second embodiment of the present invention.
10 is an exploded perspective view of the heat transfer member shown in FIG. 9;
11 is a side cross-sectional view of the heat transfer member shown in FIG. 9 .
12 is a perspective view showing an inner member according to a third embodiment of the present invention.
13 is a rear view showing a heating time adjusting member according to a fourth embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily practice the present invention with reference to the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification of the present invention, when a certain component is said to "include", it means that it may further include other components without excluding other components unless otherwise stated.

1 is a perspective view of a hot pack pouch according to a first embodiment of the present invention, FIG. 2 is a front view of FIG. 1, FIG. 3 is a rear view of FIG. 1, FIG. 4 is a left side view of FIG. 1, and FIG. FIG. 1 is a right side view, FIG. 6 is a plan view of FIG. 1 , FIG. 7 is a bottom view of FIG. 1 , and FIG. 8 is an exemplary use view of FIG. 1 .

In the hot pack pouch according to the present embodiment, the front cover 10, the rear cover 20 disposed on the rear surface of the front cover 10, and the edges of the front cover 10 and the rear cover 20 are sewn It includes a line cover 30 to be coupled, and a heat transfer member 50 disposed on the front cover 10.

1 to 7 are six-sectional views of a state in which the hot pack 100 is not inserted, and FIG. 8 is a state in which the hot pack 100 is stored.

An insertion hole 101 into which the hot pack 100 is inserted is formed between the front cover 10 and the rear cover 20, and communicates with the insertion hole 101 between the front cover 10 and the rear cover 20 An insertion space 102 is formed.

The front cover 10 is formed in a rectangular shape. The rear cover 20 is also formed in a rectangular shape and is longer than the front cover 10 .

To form the insertion space 102 in this embodiment,

The left and right widths of the front cover 10 are longer than the left and right widths W of the rear cover 20, and the length L2 of the rear cover 20 is greater than the length L1 of the front cover 10. formed long. Unlike the present embodiment, the left and right widths of the rear cover 20 may be formed longer than the left and right widths W of the front cover 10 .

When the left and right ends of the front cover 10 and the rear cover 20 are aligned and coupled through the line cover 30, since the front cover 10 is longer, it may be spaced apart from the rear cover 20. Through this, an insertion hole 101 and an insertion space 102 into which the hot pack 100 can be inserted are formed.

The line cover 30 extends upward from the left end of the lower line cover 35 sewn to the lower ends of the front cover 10 and the rear cover 20 at the same time, and the lower line cover 35, , the first side line cover 31 simultaneously sewn to the left ends of the front cover 10 and the rear cover 20, and extending upward from the right end of the lower line cover 35, the front cover (10) and the second side line cover 32, which is simultaneously sewn to the right end of the rear cover 20, and the upper ends of the first side line cover 31 and the second side line cover 32 are connected, , and an upper line cover 36 sewn to the upper end of the rear cover 20.

The lower line cover 35 is disposed to cover lower ends of the front cover 10 and the rear cover 20 at the same time, and the first side line cover 31 covers the front cover 10 and the rear cover 20. The second side line cover 32 is disposed to simultaneously cover the right ends of the front cover 10 and the rear cover 20, and the upper line cover 36 covers the rear cover It is arranged to wrap around the top of (20).

The rear cover 20 extends upward longer than the upper end 15 of the front cover 10 .

In this embodiment, the rear cover 20 includes a first rear cover part 21 disposed on the rear surface of the front cover 10 and a second part extending longer than the upper end 15 of the front cover 10. It includes the rear cover part 22.

The second rear cover part 22 is folded forward to open and close the insertion hole 101 .

A snap button 120 as a locking means is disposed on the upper side of the front cover 10 and the rear cover 20 to open and close the insertion hole 101 . The snap button is called a snap fastener or a press button.

In this embodiment, the snap button 120 includes a button 121 disposed on the upper side of the front cover 10 and a socket 122 disposed on the upper side of the rear cover 20, and the button ( 121) and the socket 122 are assembled in an interference fit form to form mutual engagement.

In this embodiment, the snap button 120 is applied as a locking means, but unlike the present embodiment, a zipper, Velcro tape, or hook may be disposed.

Since the front cover 10 and the rear cover 20 are formed of a synthetic resin material or a natural leather material, thermal conductivity is low but heat retention is high.

The heat transfer member 50 may be a mineral such as jade having higher thermal conductivity than the front cover 10 and the rear cover 20 . The heat transfer member 50 may be a heat-treated mineral such as ceramic.

The heat transfer member 50 not only stores heat, but also conducts the heat of the hot pack 100 out of the front cover 10 to provide it to the user.

The heat transfer member 50 includes a germanium material, and when heat is transferred through the hot pack 100, it can emit far-infrared rays, through which

A plurality of the heat transfer members 50 are arranged in five rows on the front cover 10 . The plurality of heat transfer members 50 are disposed below the button 121 .

In this embodiment, the heat transfer members 50 are arranged in 3 columns and 4 rows when viewed from the front.

In this embodiment, the heat transfer member 50 is formed in a hexagonal shape when viewed from the front. In this embodiment, the heat transfer member 50 is adhesively fixed to the front cover 10 through an environmentally friendly adhesive.

In this embodiment, the eco-friendly adhesive is acrylic resin, polyurethane resin, polyester resin, toluene diisocyanate trimer (TDI Trimer), cyclohexylmethane diisocyanate (H12MDI), toluene diisocyanate ( A first mixture is prepared by mixing Toluene Diisocyanate (TDI), Methylene Diphenyl Diisocyanate (MDI), Hexamethylene Diisocyanate (HMDI) and polypropylene glycol (PPG), and the first mixture It is prepared by mixing a surfactant to make a second mixture, and stirring the second mixture.

The first mixture is 10 to 40% by weight of acrylic resin, 10 to 20% by weight of polyurethane resin, 10 to 20% by weight of polyester resin, 10 to 20% by weight of toluene diisocyanate trimer (TDI Trimer) Cyclohexylmethane diisocyanate (H12MDI) 0.1 to 10% by weight, toluene diisocyanate (TDI) 0.1 to 2% by weight, methylene diphenyl diisocyanate (Methylene Diphenyl Diisocyanate, MDI) 0.1 to 2% by weight , It is prepared by mixing 4 to 9% by weight of hexamethylene diisocyanate (HMDI) and 10 to 18% by weight of polypropylene glycol (PPG).

The second mixture is a mixture of 1 to 10 parts by weight of a surfactant with 100 parts by weight of the first mixture, polypropylene oxide is used as the surfactant, and the second mixture is heated at 40 to 60 ° C. Stir for 40 minutes to prepare an environmentally friendly adhesive.

The eco-friendly adhesive composition according to this embodiment has excellent adhesive strength, does not cause yellowing, cures quickly, and does not contain heavy metals or volatile organic compounds, so it can secure stability even when in contact with the user's skin. .

Meanwhile, in order to maintain the exothermic reaction of the hot pack 100, a plurality of ventilation holes 25 penetrating the rear cover 20 are formed. In this embodiment, the ventilation holes 25 are disposed in the first rear cover part 21 .

The rear surface of the hot pack 100 is exposed through the ventilation hole 25 .

When the ventilation holes 25 are not disposed, oxygen necessary for the exothermic reaction of the hot pack 100 is not supplied, and thus the heating duration of the hot pack 100 is reduced.

In this embodiment, the plurality of ventilation holes 25 are arranged in 4 rows and 5 columns when viewed from the rear.

In general, when the entire hot pack 100 is exposed to the air, a heating time of up to 12 hours is maintained. In this case, since 24 hours to 36 hours of heat generation time can be secured, more than twice the heat generation time can be secured.

In particular, since the outside of the hot pack 100 is exposed to the outside only through the ventilation hole 25, the rapid temperature rise of the hot pack 100 can be suppressed and the heating time of the hot pack 100 can be increased.

Meanwhile, in this embodiment, a structure in which the hot pack includes iron oxide particles has been described as an example, but unlike the present embodiment, an electronic hot pack or a gel-type hot pack using heat generation by a hot wire may be stored.

9 is a front view of a hot pack pouch according to a second embodiment of the present invention, FIG. 10 is an exploded perspective view of the heat transfer member shown in FIG. 9, and FIG. 11 is a side cross-sectional view of the heat transfer member shown in FIG.

The hot pack pouch according to this embodiment is characterized in that the heat transfer member 50 is disposed to pass through the front cover 10 and contacts the hot pack 100 to directly conduct heat to the outside.

The heat transfer member 50 according to the present embodiment is disposed inside the front cover 10, the inner member 150 disposed to pass through the front cover 10, and the outside of the front cover 10 and an outer member 250 coupled to the inner member 150.

The inner member 150 is preferably formed of a metal material having high thermal conductivity.

When viewed from the front, the outer members 250 are arranged in 3 rows and 4 rows, and the inner member 150 is arranged in 5 rows to integrally couple the outer members 250 disposed in each row arranged in the vertical direction. are placed as

Thus, 12 outer members 250 are disposed, four inner members 150 are disposed, and three outer members 250 are assembled to one inner member 150 .

In the case of classifying each inner member 150, the first inner member 151, the second inner member 152, the third inner member 153, and the fourth inner member 154 are referred to from the top to the bottom.

In order to explain the configuration of the first inner member 151, the second inner member 152, the third inner member 153, and the fourth inner member 154, they will be collectively referred to as the inner member 150.

The inner member 150 is disposed on the front surface of the inner body 155 disposed between the front cover 10 and the rear cover 20 and the inner body 155, and each outer member 250 It includes a first engaging member 156, a second engaging member 157 and a third engaging member 158 forming mutually engaging with each other.

The first catching member 156, the second catching member 157, and the third catching member 158 form a mutually engaging outer member 250 and each other.

The first catching member 156, the second catching member 157, and the third catching member 158 have the same structure and are classified according to their positions.

In this embodiment, the first engaging member 156 disposed on the left side and the third engaging member 158 disposed on the right side are referred to as the first engaging member 156 and the third engaging member 158. The disposed one is referred to as the second holding member 157.

The first catching member 156, the second catching member 157, and the third catching member 158 are horizontally arranged in a line.

Since the first catching member 156, the second catching member 157, and the third catching member 158 are formed by bending upward, even while the adhesive is cured by the weight of the outer member 250 The first holding member 156, the second holding member 157, and the third holding member 158 may be firmly assembled.

The first catching member 156 includes a 1-1 catching part 156a protruding forward from the front surface of the inner body 155, and a 1-1 catching part 156a bent upward from the front end of the 1-1 catching part 156a. It includes the 1st-2nd hooking part 156b.

The second catching member 157 includes a 2-1 catching part 157a protruding forward from the front surface of the inner body 155, and a 2-1 catching part 157a bent upward from the front end of the 2-1 catching part 157a. It includes the 2-2 hooking part 157b.

The third catching member 158 includes a 3-1 catching part 158a protruding forward from the front surface of the inner body 155, and a 3-1 catching part 158a bent upward from the front end of the 3-1 catching part 158a. It includes a 3-2 hooking part (158b).

A plurality of the outer member 250 is manufactured in the same structure.

The outer member 250 includes an outer body 255 in close contact with the outer surface of the front cover 10, and an insertion groove formed concavely from the rear surface 255b of the outer body 255 toward the front surface 255a ( 256), an extension groove 257 that extends upward from the insertion groove 256 and is concavely formed, and extends from the rear surface 255b of the outer body 255 toward the insertion groove 256, and the extension groove 257, and includes a holding wall 258 disposed behind the first holding member 156, the second holding member 157, or the third holding member 158 and forming mutual locking.

After the 1-2 hooking part 156b, the 2-2 hooking part 157b, and the 3-2 hooking part 158b are inserted into the insertion groove 256, they move to the extension groove 257. It becomes mutually engaging with the holding wall 258.

A plurality of front holes (not shown) are passed through so that the 1-2 hooking part 156b, the 2-2 hooking part 157b, and the 3-2 hooking part 158b pass through the front cover 10. is formed

The eco-friendly adhesive is filled in the insertion groove 256 and the extension groove 257, and the 1-2 hooking part 156b, the 2-2 hooking part 157b or the 3-2 hooking part 158b adhesively bonded with In addition, since the eco-friendly adhesive bonds the front surface of the front cover 10 and the outer member 250, bonding strength can be further strengthened.

In addition, since the eco-friendly adhesive adhesively bonds the inner member 150 and the rear surface of the front cover 10, the bonding force can be further strengthened.

In this way, since the hot pack pouch according to the present embodiment is coupled with the inner member 150 and the outer member 250 having the front cover 10 therebetween, even if an external impact is applied, it is prevented from being separated from the front cover 10 It can be suppressed, and through this, the durability of the product can be improved.

In particular, since three outer members 250 are coupled to one inner member 150, assembly convenience can be improved.

Meanwhile, a middle cover 70 covering the inner member 150 and adhesively fixed to the rear surface of the front cover 10 may be further included.

The eco-friendly adhesive is used to adhesively fix the middle cover 70 to the front cover 10 .

The middle cover 70 may be woven by mixing a synthetic resin yarn and a copper yarn (hereinafter referred to as copper yarn). Since the copper yarn is easily bent, it can be tightly fixed to the inner member 150 and can be directly contacted with the hot pack 100 to receive heat conduction.

In addition, since the copper yarn of the middle cover 70 directly contacts the inner member 150, the heat of the hot pack 100 can be effectively conducted to the outer member 250.

Since the remaining configurations are similar to those of the first embodiment, detailed descriptions thereof are omitted.

12 is a perspective view showing an inner member according to a third embodiment of the present invention.

In the inner member 350 according to the present embodiment, unlike the second embodiment, the first engaging member 156, the second engaging member 157, and the third engaging member 158 are assembled to be relatively rotatable, respectively. there is

The inner member 350 is disposed between a first inner body 351 disposed between the front cover 10 and the rear cover 20 and between the front cover 10 and the rear cover 20, The second inner body 352 rotatably assembled with the first inner body 351 in the front-rear direction and disposed between the front cover 10 and the rear cover 20, and the second inner body 352 ) and a third inner body 353 rotatably assembled in the forward and backward directions, and a first engaging member disposed on the front surface of the first inner body 351 and engaging each outer member 250 with each other. 156, the second engaging member 157 disposed on the front surface of the second inner body 352 and engaging each outer member 250 with each other, and the third inner body 353 It is disposed on the front side and includes a third engaging member 158 forming mutually engaging each outer member 250 .

The first catching member 156 includes a 1-1 catching part 156a protruding forward from the front surface of the inner body 155, and a 1-1 catching part 156a bent upward from the front end of the 1-1 catching part 156a. It includes the 1st-2nd hooking part 156b.

The second catching member 157 includes a 2-1 catching part 157a protruding forward from the front surface of the inner body 155, and a 2-1 catching part 157a bent upward from the front end of the 2-1 catching part 157a. It includes the 2-2 hooking part 157b.

The third catching member 158 includes a 3-1 catching part 158a protruding forward from the front surface of the inner body 155, and a 3-1 catching part 158a bent upward from the front end of the 3-1 catching part 158a. It includes a 3-2 hooking part (158b).

In this embodiment, the first rotation shaft 354 rotatably connecting the first inner body 351 and the second inner body 352, the second inner body 352 and the third inner body 353 It further includes a second rotational shaft 355 rotatably connecting the first rotational shaft 354 and the second rotational shaft 355 are disposed in the vertical direction.

In this embodiment, the first rotation shaft 354 and the second rotation shaft 355 are disposed in parallel.

The second inner body 352 has a 2-1 hinge part 352a that protrudes to the left and through which the first rotation shaft 354 passes, and a 2-1 hinge part 352a that protrudes to the right and passes through the second rotation shaft 355. A 2-2 hinge portion 352b is further included.

The first inner body 351 further includes a first hinge part 351a having a concave shape matched with the 2-1 hinge part 352a.

The first rotation shaft 354 rotatably assembles the 2-1 hinge part 352a and the first hinge part 351a.

The third inner body 353 further includes a concave third hinge part 353a matched with the 2-2 hinge part 352b.

The second rotation shaft 355 rotatably assembles the 2-2 hinge part 352b and the third hinge part 353a.

The first inner body 351 and the second inner body 352 may rotate relative to the first rotation shaft 354 . The second inner body 352 and the third inner body 353 may rotate relative to the second rotation shaft 355 .

Since the first inner body 351, the second inner body 352, and the third inner body 353 can each rotate, they can be easily deformed according to the surface curvature of the hot pack 100, and through this Bending deformation of the inner member 350 can be prevented.

In addition, when the hot pack 100 is withdrawn, the first inner body 351, the second inner body 352, and the third inner body 353 are flattened in a row, so the volume can be minimized. .

So, in the hot pack pouch according to this embodiment, since the first inner body 351, the second inner body 352, and the third inner body 353 can each rotate, the hot pack 100 has a flat shape. free even if not

For example, even if the hot pack 100 has a spherical shape, the first inner body 351, the second inner body 352, and the third inner body 353 may be in close contact with the surface of the spherical hot pack. Through this, an effective contact area for heat conduction can be formed.

Since the remaining configurations are similar to those of the second embodiment, detailed descriptions thereof are omitted.

13 is a rear view showing a heating time adjusting member according to a fourth embodiment of the present invention.

In the hot pack pouch according to the present embodiment, a heating time adjusting member 90 is further disposed on the rear surface of the rear cover 20 .

The heating time adjusting member 90 can selectively open and close the plurality of ventilation holes 25 formed in the rear cover 20, and through this, the amount of air supplied to the hot pack 100 can be adjusted.

The heating time adjusting member 90 includes an adjusting cover 95 covering the rear cover 20, a first Velcro portion 91 disposed on the adjusting cover 95, and the rear cover 20. It is disposed on, and includes a second Velcro portion 92 forming a frictional force or interlocking with the first Velcro portion 91.

The first velcro portion 91 and the second velcro portion 92 have a structure of a velcro tape, and mutually engage when in contact.

The first Velcro part 91 is disposed along the edge of the adjusting cover 95 .

The second Velcro portion 92 is disposed on the rear surface of the rear cover 20, and is disposed to be formed long along the edge in this embodiment.

In this embodiment, the first Velcro portion 91 and the second Velcro portion 92 may be formed in a rectangular shape.

The first velcro portion 91 and the second velcro portion 92 may be disposed outside the ventilation hole 25 and closely adhered to the line cover 30 .

In particular, after the second Velcro portion 92 fixed to the rear cover 20 is inserted between the line cover 30 and the rear cover 20, when sewing the line cover 30, the line cover ( 30), it can be sewn and fixed to the rear cover 20, through which the work process for fixing the Velcro can be reduced, and the second Velcro portion 92 can be firmly fixed.

In addition, the plurality of ventilation holes 25 may be opened and closed by rolling or folding the control cover 95 . A first Velcro part 91 may be used to fix the end 96 of the rolled or folded control cover 95.

When the first Velcro portion 91 is in the form of a hook and the adjusting cover 95 adopts a woven structure in which the first Velcro portion 91 can interfere with each other like the second Velcro portion 92, A curled or folded end 96 can be easily secured.

In addition, since the adjusting cover 95 is fixed to the rear cover 20 through the first Velcro part 91 and the second Velcro part 92, it can be completely separated to open the entire ventilation hole 25 when not needed. may be open.

Since the remaining configurations are similar to those of the third embodiment, detailed descriptions thereof are omitted.

In the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments and should not be defined, but should be defined by not only the scope of the claims to be described later, but also those equivalent to the scope of these claims.

10: front cover 20: rear cover
21: first rear cover part 22: second rear cover part
30: line cover 50: heat transfer member
100: hot pack 120: snap button

Claims (5)

In the hot pack pouch in which the hot pack 100 having a structure including iron oxide particles is accommodated,
A front cover 10 formed in a rectangular shape;
a rear cover 20 disposed on a rear surface of the front cover 10 and formed in a rectangular shape and longer than the front cover 10;
a line cover (30) for sewing the edges of the front cover (10) and the rear cover (20); and
A plurality of heat transfer members 50 disposed on the front cover 10
including,
An insertion hole 101 into which the hot pack 100 is inserted is formed between the front cover 10 and the rear cover 20, and the insertion hole 101 between the front cover 10 and the rear cover 20 ) characterized in that the insertion space 102 communicating with is formed,
The rear cover 20,
a first rear cover part 21 disposed on the rear surface of the front cover 10; and
A second rear cover part 22 extending longer than the upper end 15 of the front cover 10
including,
The second rear cover part 22 is characterized in that it is folded forward to open and close the insertion port 101,
The front cover 10 and the rear cover 20 are formed of a synthetic resin material or a natural leather material,
The heat transfer member 50,
an inner member 150 disposed inside the front cover 10 and passing through the front cover 10; and
A plurality of outer members 250 disposed outside the front cover 10 and coupled to the inner member 150
including,
The inner member 150,
an inner body 155 disposed between the front cover 10 and the rear cover 20; and
First, second, and third hooking members 156, 157, and 158 disposed on the front surface of the inner body 155 and engaging the outer member 250 with each other
including,
The heat transfer member 50 is fixed to the front cover 10 to store the heat of the hot pack 100 and conducts the heat of the hot pack 100 out of the front cover 10 to provide it to the user. and
In the first rear cover part 21, a plurality of ventilation holes 25 for exposing the rear surface of the hot pack 100 accommodated in the insertion space 102 are arranged to communicate with the insertion space 102. , The hot pack 100 is not supplied with oxygen necessary for the exothermic reaction to prevent the heat generation duration of the hot pack 100 from being reduced, and at the same time, the outside of the hot pack 100 is only passed through the ventilation hole 25 to the outside. Characterized in that the rapid temperature rise of the hot pack 100 is suppressed to increase the heating duration by exposure to
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