JPH08238154A - Heat retaining tool usable as bag and vice verse - Google Patents

Abstract

PURPOSE: To improve the convenience property of a heat retaining tool formed as a sleeping bag or a coat and make it suitable for disaster prevention or leisure. CONSTITUTION: A bag-like or tubular hollow section 1 having at least an opening section 13 at one end section is formed with a flexible fabric material as a heat retaining tool, and the other end section of the hollow section 1 is made flat and folded at least one or more times to one end section side. Fitting means 60a, 62b for removably fitting the folded portion of the other end section to the other portion of the hollow section 1 are provided to form the heat retaining tool as a bag while the opening section 13 is used as an article entrance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a warming tool and a bag such as a sleeping bag and an upper garment suitable for disaster prevention, survival, leisure, etc., and more specifically to a sleeping bag and an upper garment that can be converted into a bag. The present invention relates to a bag that can be diverted to a warming tool such as a sleeping bag or a jacket.

[0002]

2. Description of the Related Art Conventionally, as a warming tool for disaster prevention or leisure, for example, Japanese Utility Model Laid-Open No. 59-61213 or
Some of them are listed in Japanese Utility Model Publication No. 63-84252. In these conventional devices, for example, a warming tool which is usually used as a sleeping bag can be worn as an outer garment such as a coat if necessary. According to such a configuration, one warming device can be used as a sleeping bag and an upper garment, which is convenient.

[0003]

However, since the above-mentioned conventional device can only be used as a sleeping bag or an upper garment, it is necessary to carry this warming tool together with other disaster prevention articles, for example, during a disaster evacuation. , It is necessary to carry this heat retainer in a bag along with other disaster prevention supplies. Therefore, conventionally, when carrying the heat retaining tool together with other articles, it is necessary to prepare a bag separately from the heat retaining tool, which is inconvenient in this respect. In particular, since the heat insulator configured to be used as a sleeping bag has a length equal to or greater than the height of the user and its size is large, when the sleeping bag is stored in a bag together with other articles, the entire bag is However, it was bulky and had difficulty in carrying it. In addition, for example, when it becomes necessary to carry various items at a leisure destination, the inconvenience of having to carry appropriate items due to the lack of a suitable bag is often experienced. is there.

The present invention has been devised under such circumstances, and in the case where the heat retaining device itself configured as a sleeping bag or an outer garment is carried together with other articles, or When it becomes necessary to carry a desired item at a leisure destination, it is possible to easily carry it without having to prepare a separate bag to enhance the convenience of the heat insulator, for disaster prevention or leisure purposes, etc. The problem is to make it suitable for.

[0005]

DISCLOSURE OF THE INVENTION According to a first aspect of the present invention, there is provided a heat retaining device in which a bag-like or tubular hollow portion having an opening at least at one end is formed of a flexible cloth material,
In this warming tool, the other end of the hollow portion is made flat and is held in a state of being folded back toward the one end side at least once, so that the warming tool is formed as a bag having the opening as an article entrance / exit. As described above, a fastening means for detachably fastening the folded-back portion of the other end portion to another portion of the hollow portion is provided.

The second aspect of the present invention is characterized in that the heat retaining device that can be diverted to the bag is configured as a bag that can be diverted to the heat retaining device.

In the present invention, for example, the other end of the hollow part of the heat retaining device in which the hollow part of a bag-like or tubular shape having an opening at least at one end of a sleeping bag, an outer garment or the like is formed is made flat. When the folded part of the other end is fixed to another part of the hollow part by using a predetermined fixing means after the folded part is folded back to the one end side at least once, the heat retaining device is opened and closed by the opening. The bag can be

That is, for example, in a sleeping bag as an example of a heat retaining device, it is difficult to use the same as a bag as it is because the hollow portion is formed to have the same size as or larger than the height of the user. However, if the other end of the hollow portion of the sleeping bag is flattened and folded back as described above, the size of the entire sleeping bag can be reduced. In addition, a space for accommodating an article thrown in from the opening of the one end can be formed and held inside the one end of the hollow part that is folded back, which is convenient for carrying. It can be a size bag.

Further, with respect to the upper garment such as a coat or jumper as another example of the heat retaining device, it is difficult to use the upper garment as it is because of its size, and one end of the upper garment has a neck hole. While having an opening, the other end has a tubular shape with openings at both ends in which openings as hem holes are also formed. Therefore, it is difficult to use it as a bag as it is. However, as described above, the other end of the outer garment (for example, the hem side)
If you flatten and fold back, you can shorten the size of the entire garment after closing the opening at this other end,
After all, it will be possible to make a bag with a bottom that is convenient for carrying.

Further, in the case where the bag is formed as described above, since the other end of the hollow portion is folded back into a flat shape, it is detachably fixed to the other portion of the hollow portion. , After forming the heat retaining device as a bag,
By releasing the fastening state of the fastening means, the bag can be immediately returned to the original form of a warming tool such as a sleeping bag or a jacket.

As described above, according to the present invention, since the heat retaining device configured as a sleeping bag or a jacket can be used as a bag that can be easily carried, if necessary.
For example, when carrying the warming tool together with other articles during a disaster evacuation or leisure, it is not necessary to carry the warming tool together with the other articles in another bag, unlike the conventional case. In the present invention, since the heat retaining device is formed as a bag and desired articles can be accommodated therein, it is not necessary to prepare the bag separately from the heat retaining device. Moreover, when this heat retaining device is used as a bag, unlike the case where the heat retaining device is accommodated in a bag different from this heat retaining device, the entire bag for accommodating the heat retaining device does not become bulky. The effect that it is easy to carry or carry is obtained. In addition, in the present invention, in various places such as disaster prevention shelters and leisure destinations,
Since it can be used flexibly as a heat retaining device or as a bag, it is convenient because it can be used as a multi-functional heat insulating device.

[0012] In a preferred embodiment of the present invention, the above-mentioned heat retaining device is further provided with strap attaching means for attaching a shoulder strap or a gripping strap to the heat retaining device when the heat retaining device is formed as a bag. Can be configured. According to such a configuration, when the warming tool is used as a bag, the warming tool can be a bag provided with a strap for shoulder hanging or grasping, and it is possible to improve the usability when carrying it. .

In another preferred embodiment of the present invention, the strap attaching means is a backpack having a pair of left and right arm passing portions formed by the straps when the heat retaining tool is used as a bag. As described above, at least three or more locations may be provided. With such a configuration, when the warming tool is formed as a bag, it can be carried on the back as a rucksack, and the usability for carrying it can be further improved.

Further, in another preferred embodiment of the present invention, the opening at one end of the hollow portion may be configured to be openable and closable. With such a configuration, when the warming tool is used as a bag and a desired article is accommodated therein, the opening serving as the article entrance / exit can be closed, and the article accommodated inside is careless. It can be prevented from popping out or falling off, and the function as a bag can be enhanced.

Further, in another preferred embodiment of the present invention, the heat retaining device configured as a sleeping bag has a pair of left and right sleeves continuously provided in the hollow portion and an opening / closing provided at the other end portion of the hollow portion. A flexible opening, and the other end of the hollow part so that the warming tool can be formed and held as an upper garment with both ends of the hollow part opened by folding the other end of the hollow part toward the one end side at least once. It is also possible to employ a configuration in which a fastening means for detachably fastening the folded-back portion of the end portion to another portion of the hollow portion is provided. With such a configuration, the heat retaining device configured as a sleeping bag can be used not only as a bag but also as an upper garment having a pair of left and right sleeves. Therefore, it is convenient and more versatile and versatile for the heat retention tool.

Further, in another preferred embodiment of the present invention, a hood is connected to one end of the hollow portion, and the hood serves as an article entrance / exit when the warming tool is formed as a bag. The hood is bent to cover the opening so that the opening can be closed and held by the hood. A fastening means for detachably fastening the tip of the hood to the outer surface of the hollow portion is provided. You can also According to such a configuration, when the heat insulator is used as a sleeping bag or outer garment, the hood can be used as a hood for the sleeping bag or outer garment, and when the heat insulator is formed as a bag, it serves as an article entrance / exit. The opening can be adequately covered by the hood. Therefore, it is possible to eliminate the possibility that an article housed inside may pop out from the opening serving as the article entrance or exit or that an article housed inside may be seen by another person.

Furthermore, in another preferred embodiment of the present invention, the hood may be provided with an air pillow which allows air to be taken in and out freely. According to such a configuration, when the warming tool is used as a sleeping bag, it can be used as a simple pillow by blowing air into the air pillow. When the warming tool is not used as a sleeping bag, the air pillow can be prevented from becoming bulky by bleeding air, which is convenient for handling.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will be described below.
A specific description will be given with reference to the drawings.

FIG. 1 is a front view showing a sleeping bag as an example of a heat retaining device to which the present invention is applied. 2 is X1 of FIG.
FIG. 4 is a front view of the sleeping bag shown in FIG. 1 in a developed state, and FIG. 4 is a rear view of the sleeping bag shown in FIG. 1.

In FIGS. 1 and 4, this sleeping bag is constructed so that it can be used as a rucksack and a cold-preventing coat, and a body portion 1 as a hollow portion formed in a tubular or bag-like shape, To attach a pair of left and right sleeves 2 and 2 that are continuously provided on both left and right edges of one end (upper end) of the body 1, a hood 3 that is continuously provided at the upper end of the body 1, and a strap 9 described later. Is provided with a plurality of strap mounting pieces 5a to 5c.

The body 1, the sleeves 2 and 2, and the hood 3
Are each made of a flexible cloth material, and as an example thereof, far infrared radiation cotton is filled between a polyester outer material and a lining material, and appropriately quilted if necessary. A fabric with a multi-layer structure that is excellent in heat retention is used. The outer surface of the outer surface made of polyester is preferably waterproofed and provided with water repellency.

The body part 1 is a back cloth part 1 having a rectangular front shape.
The outer edge portions of the pair of left and right front fabric portions 11a, 11b are sewn to the both side edge portions 10a, 10b of 0, and the inner edge portions of the pair of front fabric portions 11a, 11b facing each other are sewn. A slide fastener 12 is attached. As a result, the body portion 1 has the slide fastener 12
When is closed, the entire body 1 is formed into a tubular shape, and an opening 13 for the neck of the user is formed at one end (upper end) on the bedside. Further, another opening 14 is formed at the other end (lower end) on the foot side. The overall length of the body 1 in the vertical direction is, for example, about 2 m, and for children, the size is shorter than this.

On the upper edge of each of the front cloth portions 11a and 11b, which are the peripheral portions of the opening 13, there are formed string passing portions 40 and 40 into which a pair of left and right strings 4 and 4 are inserted. These string passing portions 40, 40 correspond to an example of a means for opening and closing the opening portion 13, and by connecting the pair of strings 4, 4, the upper end edges of the front fabric portions 11a, 11b are connected. As a result of being able to narrow down, the opening 13
Can be closed.

A vertically elongated auxiliary piece 15 is sewn to the inner edge of one of the pair of front cloth portions 11a and 11b, and the inner surface portion of the auxiliary piece 15 is sewn to the inner edge portion of the front cloth portion 11a. A plurality of pairs of male and female hook buttons 6a and 6b, which are detachable from each other, are attached to the inner edge of the other front fabric portion 11b on which the auxiliary piece 15 is overlapped. The hook buttons 6a and 6b function as front buttons of the cold-prevention coat when the sleeping bag is diverted to a cold-prevention coat having a reduced size as described later. Therefore, the auxiliary piece 15 is the front fabric portion 1
It does not need to be provided over the entire length of 1a, and is provided near the upper end, for example, with a length of about 1/2 of the overall length of the body 1.

At the lower end portion of the body portion 1, there is provided an extending portion 16 in which the lower end edge of the back face fabric portion 10 projects below the lower end edges of the front face fabric portions 11a and 11b. Two sets of male and female hook buttons 60a and 60b, which are detachable from each other, are attached to the surface of the extending portion 16 and the surface of the front fabric portions 11a and 11b in the vicinity thereof. Therefore, the extension portion 16 is folded back to the front surface side of the front fabric portions 11a and 11b and the hook buttons 60a and 60b are joined to each other, so that the opening portion 14 of the body portion 1 is blocked and held by the extension portion 16. It is possible to

In FIG. 4, the back cloth portion 1 of the body portion 1 is described.
Hook buttons 60c and 62a are provided at 0, for example, at two locations. Of these, the hook buttons 60c, 60c located on the lower side are detachable from the hook buttons 60a, 60a of the extending portion 16, and when the extending portion 16 is folded back to the back side of the body portion 1. The extension 16 is for fixing the extension 16 to the back surface of the body 1. On the other hand, the hook buttons 60a, 6 located on the upper side
0a is the front fabric portion 11a, 11 of the body portion 1 in FIG.
Hook button 6 provided substantially at the center in the longitudinal direction of b
It is removable with 2b and 62b.

In FIG. 3, two other hook buttons 60d, 61a, 61b are provided at appropriate places on the inner surface of the body 1. Of these, the hook buttons 60d, 60d are the hook buttons 60a,
The hook button 61a is detachable from the hook button 60a, and the other hook buttons 61a and 61b are detachable from each other.
These hook buttons 60a, 60d, 61a, 61b
Is used when this sleeping bag is diverted to a cold protection coat as described later.

In FIG. 1, the pair of sleeves 2 and 2 are used to pass both arms of a user, and one end of a band 7 made of a belt-like cloth is provided at the peripheral edge of each cuff. Installed removably or non-removably.
Further, a hook button 64a attached to the other end of the band 7 and a detachable hook button 64b are provided at one end of the band 7. Therefore, when the band 7 is wound so as to squeeze the cuff peripheral edge portions of the sleeves 2 and 2, and then the pair of hook buttons 64a and 64b are joined, the cuffs of the sleeves 2 and 2 can be closed. .

The hood 3 is originally for covering the user's head, but when the sleeping bag according to this embodiment is used as a backpack, it functions as a lid piece for the opening 13. . A pair of male and female are provided near the tip of the hood 3 and on the surface of the auxiliary piece 15 of the body 1 so as to fix the hood 3 when the hood 3 is bent toward the surface of the body 1. Detachable hook button 65,
65a is attached.

An air pillow 8 as shown in FIG. 5, for example, is detachably or irremovably attached to the inside of the hood 3. The air pillow 8 is composed of a soft and flexible member and has a nozzle opening 8
When air is blown into the interior from 0, it can be used as a pillow, while when air is evacuated from the nozzle opening 80, the whole becomes flat so as not to be bulky.

In FIG. 4, the strap attachment piece 5 is attached.
a to 5c are for attaching a strap 9 described later when using this sleeping bag as a backpack,
For example, the belt-shaped cloth is formed in a ring shape. These three strap mounting pieces 5a to 5c
Among them, one strap attachment piece 5a is arranged at the upper center of the rear part of the body portion 1, while the other two strap attachment pieces 5b and 5c are lower side edge portions of the body portion 1. It is located in the position.

In addition, in the above-mentioned sleeping bag, pockets 18 are provided at one place or a plurality of places at appropriate places such as the surface portion of the body portion 1.

When the sleeping bag having the above-mentioned structure is used as a normal sleeping bag, first, in the state shown in FIG. 1, the extending portion 16 at the lower portion of the body portion 1 is folded back to the front surface side of the body portion 1 and the hook button. The opening 14 is closed by joining 60a and 60b to each other. The pair of left and right front fabric parts 11a and 11b are closed by the slide fastener 12. As a result, as shown in FIG. 6, the body portion 1 can be formed in a bag shape having the neck opening 13 at the upper end thereof. Therefore, it can be used as a sleeping bag having good heat retention. Further, in this case, since the air pillow 8 attached to the hood 3 can be used, sleeping comfort is also improved. Since this sleeping bag can be developed into a sheet shape as shown in FIG. 3, it can also be used as a heat retaining sheet.

Next, when the above sleeping bag is used as a backpack, each part may be folded back in the following procedure. That is, first, as shown in FIG. 6, in a state in which the body portion 1 is formed in a bag shape, the sleeping bag is turned over, and then, as shown in FIG. 7, a lower portion having a length about 1/3 of the body portion 1 is formed. The area is flattened and folded back to the back side of the body 1. Then, the hook buttons 60a, 60a of the extension portion 16
After being removed from the hook buttons 60b, 60b, these hook buttons 60a, 60a are joined to the other hook buttons 60c, 60c on the back surface of the body 1. After that, the entire folded back portion is flattened and further folded back to the upper side of the body portion 1 as shown in FIG. Then, the hook buttons 62b, 62b are joined to the hook buttons 62a, 62a on the back side of the body 1. As a result, the overall length of the body 1 can be reduced to about 1/3.

On the other hand, with respect to the sleeves 2 and 2, the cuffs thereof are squeezed and closed by using a band 7. Then, as shown in FIG. 9, these sleeves 2 and 2 are pushed into the inside of the body 1 from the position of the shoulder opening. As a result, it is possible to prevent the sleeves 2, 2 from hanging down to the outside of the body portion 1 in an indeterminate manner. When the sleeves 2, 2 are pushed into the body 1 as described above, the shoulder opening becomes the opening A.
Therefore, as a means for closing the opening A, for example, as shown in FIG. 10, it is preferable to appropriately provide hook buttons 66, 66a and the like which are detachably attachable to each other on the inner surface of the opening A. Further, since the sleeves 2 and 2 pushed into the body portion 1 are clogged at the cuffs, the sleeves 2 and 2 can be used as bottomed pockets capable of accommodating desired articles from the opening A. It is possible and convenient.

Further, after the body portion 1 is folded as described above, as shown in FIG. 11, of the three strap attaching pieces 5a to 5c at three positions, it is suitable for the strap attaching piece 5a located in the upper center. Straps such as nape or obi 9
Then, both ends of the strap 9 may be bound to the other strap attachment pieces 5b and 5c. As a result, the pair of left and right arm passing portions 90, 90
Can be formed. The strap 9 is
The strap attachment pieces 5b and 5c may not be bound together, but may be attached via an appropriate stopper or the like. Further, the strap 9 does not necessarily need to be attached to the strap attaching pieces 5a to 5c after the predetermined folding operation of the body portion 1 is completed, and may be attached before that. When the strap 9 is not used, it may be stored in the pocket 18 of the body 1, for example, so that the strap 9 can be prevented from being lost.

According to the series of procedures described above, as shown in FIGS. 12 and 13, the sleeping bag can be formed as a backpack including the strap 9. In this rucksack, the inner space portion 19 at the upper part of the body portion 1 can be used as an article storage portion, and the opening portion 13 that was used as a neckline in a sleeping bag can function as an article entrance / exit. The opening 13 can be closed by tying the cords 4 and 4, and the hood 3 can also function as a lid piece of the opening 13. At this time, the hook buttons 65 and 65a are joined to each other to prevent the hood 3 from being opened accidentally. Therefore, the same handling as a general rucksack can be performed. In addition, the rucksack formed in this way, after folding each part of the sleeping bag,
Since it is formed by a work such as fastening those parts using a detachable hook button, it can be arbitrarily and easily returned to the original sleeping bag state as needed.

Further, the sleeping bag can be used not only as a rucksack as described above, but also as a cold protection coat. When using it as a winter coat, first open the slide fastener 12 and unfold the sleeping bag, as shown in FIG.
As shown in FIG. 14, the lower portion of the body portion 1 is folded upward. Then, the hook buttons 60a, 6 on the lower edge of the body portion 1
Each of 1a is joined to another hook button 60d, 61b. As a result, the total length of the sleeping bag is reduced to about half.

After the lower part of the body portion 1 is folded up as described above, as shown in FIG. 15, the pair of left and right front fabric portions 11a and 11b in the unfolded state of the body portion 1 are restored to their original state. Just put it back. In this state, although the front cloth portions 11a and 11b cannot be closed by the slide fastener 12, the hook button 6a of the auxiliary piece 15 is joined to the hook button 6b of the one front cloth portion 11b, so that the pair of front surfaces can be closed. The fabric parts 11a and 11b can be appropriately closed. In this cold weather coat, the back body is formed by the back cloth portion 10 of the sleeping bag, and the front body is formed by the front cloth portions 11a and 11b.
Therefore, it can be properly worn as a winter coat. Further, even when it is formed as this winter coat, it can be immediately returned to the original sleeping bag form.

Although the sleeping bag is formed as a rucksack in the above embodiment, the present invention is not limited to this. In the present invention, for example, the strap 9 is attached so as to be a strap for carrying,
Needless to say, the bag may be in the form of a carrying bag, and it is not always necessary to attach a strap in order to form the sleeping bag as a bag. That is, in the present invention, the back may be formed without the strap. Even if the strap is not provided, according to the present invention, for example, the sleeping bag can be formed as a simple bag with a reduced total length, which is also convenient.

In the above embodiment, the sleeping bag which can be diverted to both the bag (backpack) and the cold protection coat has been described as an example, but the present invention is not limited to this. In the present invention, for example, it may be configured as a sleeping bag that cannot be diverted as an upper garment such as a coat. Furthermore, it may be configured as an upper garment that cannot be diverted as a sleeping bag. The point is that it may be configured as at least a sleeping bag that can be converted to a bag, an outer garment, and other heat retaining devices. As long as it is a heat retaining tool in which a bag-shaped or tubular hollow portion having an opening at least at one end is formed of a flexible cloth material, it can be diverted to a bag by applying the present invention.

In addition, in the present invention, the fastening means of each part is not limited to the hook button, and various fastening means other than this (for example, a surface fastener) can be used, and the specific constitution of each part. Can be designed in various ways.
Needless to say, when the present invention is configured as a sleeping bag, no sleeve or hood is required.

[Brief description of drawings]

FIG. 1 is a front view showing an example of a sleeping bag to which the present invention is applied.

FIG. 2 is a sectional view taken along line X1-X1 of FIG.

FIG. 3 is a developed front view of the sleeping bag shown in FIG.

FIG. 4 is a rear view of the sleeping bag shown in FIG.

FIG. 5 is a perspective view of a main part showing an example of an air pillow attached to a hood.

FIG. 6 is a front view showing an example of the sleeping bag shown in FIG. 1 in a used state.

FIG. 7 is a perspective view showing a first procedure when the sleeping bag shown in FIG. 1 is formed as a rucksack.

FIG. 8 is a perspective view showing a second procedure when the sleeping bag shown in FIG. 1 is formed as a backpack.

FIG. 9 is a perspective view showing a third procedure when the sleeping bag shown in FIG. 1 is formed as a backpack.

FIG. 10 is a perspective view showing another example of the case where the sleeping bag shown in FIG. 1 is formed as a rucksack.

FIG. 11 is a perspective view showing a fourth procedure when the sleeping bag shown in FIG. 1 is formed as a rucksack.

FIG. 12 is a perspective view showing an example of a rucksack formed of a sleeping bag.

13 is a cross-sectional view taken along line X2-X2 of FIG.

FIG. 14 is a front view showing an example of a procedure for forming the sleeping bag shown in FIG. 1 as a coat.

15 is a front view showing an example of a coat formed by the sleeping bag shown in FIG.

[Explanation of symbols]

 1 Body (hollow part) 2 Sleeve 3 Hood 4 String 5a-5c Strap mounting pieces 6a, 6b, Hook button 7 Belt 8 Air pillow 9 Strap 10 Back cloth part 11a, 11b Front cloth part 13 Opening part 40 String passing part 60a-60d hook button 61a, 61b hook button 62a, 62b hook button 65, 65a hook button 90 arm passing part

Claims (10)

[Claims] 1. A warming tool having a bag-shaped or tubular hollow part having an opening at least at one end formed of a flexible cloth material, wherein the warming tool has the other end of the hollow part. The folded portion of the other end portion is formed so that the heat retaining member is formed as a bag having the opening portion as an article entrance and exit by holding the portion in a flat shape and folding it toward the one end portion side at least once. A heat retaining device that can be diverted to a bag, characterized in that it is provided with a fastening means for detachably fastening the other part to the hollow part. 2. The heat retaining device further comprises a strap attaching means for attaching a strap for shouldering or holding to the heat retaining device when the heat retaining device is formed as a bag. A heat retaining device that can be diverted to the bag according to claim 1. 3. The strap attaching means is at least at three or more locations so that when the warming tool is used as a bag, the warming tool becomes a rucksack having a pair of left and right arm passing portions formed by the straps. It is provided, The heat retention tool which can be diverted to the bag of Claim 1 or 2 characterized by the above-mentioned. 4. An opening at one end of the hollow portion is configured to be openable and closable.
A heat retainer that can be diverted to the bag described in any one of 1. 5. The diversion to the bag according to claim 1, wherein the heat retaining device is configured as a sleeping bag having a hollow portion for accommodating a user's body. A warming tool that can be used. 6. The heat retaining device configured as the sleeping bag includes:
A pair of left and right sleeves connected to the hollow portion, an openable and closable opening provided at the other end of the hollow portion, and the other end of the hollow portion is folded back toward the one end at least once. A fastening for detachably fastening the folded-back portion of the other end of the hollow portion to another portion of the hollow portion so that the heat retaining tool can be formed and held as a garment in which both ends of the hollow portion are opened. Means and are provided, The heat retention tool which can be diverted to the bag of Claim 5 characterized by the above-mentioned. 7. A hood is connected to one end of the hollow portion, and an opening serving as an article inlet / outlet when the warming tool is formed as a bag can be closed and held by the hood. The fastening means for detachably fastening the tip of the hood that is bent to cover the opening to the outer surface of the hollow portion is provided. A warming tool that can be converted to a bag. 8. The heat retaining device according to claim 7, wherein the hood is provided with an air pillow that allows air to be taken in and out freely. 9. The warming device according to claim 1, wherein the warming device is configured as an upper garment such as a coat or a jumper having a hollow portion formed from a front body and a back body. A heat retaining device that can be converted to the bag described. 10. A warming tool that can be diverted to the bag according to any one of claims 1 to 9,
A bag that can be used as a heat insulator.