JP2007051451A - Thermal insulation tent and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thermal insulation tent having a thermal insulation wall without having a narrow part, having a thermal insulation material having the uniform and sufficient wall thickness, and superior in thermal insulation performance, storage performance, cleaning performance and productivity. <P>SOLUTION: A thermal insulation material unit 21 is laid all over while fixing to an inner peripheral surface in the vicinity of a central part of a waterproof covering 22 by a fastener 24 via a washer 23 by inserting the thermal insulation material unit 21 having a notch C in the vicinity of the central part from one opening end of the waterproof cover 22 of both end openings, and after the thermal insulation material unit 22 reaches up to a limit of not projecting from the opening end, its opening end is sealed, and a laying-all-over part of the thermal insulation material unit 21 is folded up, and this time, the thermal insulation material unit 21 is similarly laid all over by inserting the thermal insulation material unit 21 from the other opening end, and after the thermal insulation material unit 21 reaches up to the limit of not projecting from the opening end, its opening end is sealed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention has a heat insulating tent and a manufacturing method thereof, in particular, a heat insulating material that has a uniform and sufficient wall thickness over the entire surface and can be folded by a simple mechanism, and has excellent heat insulating properties, storage properties, cleaning properties, and productivity. The present invention relates to an insulating tent and a manufacturing method thereof.

Conventionally, a heat-insulated tent that is covered with a flexible and heat-insulating soft material and can be stretched and stretched from the indoor ceiling is used for freshness management, ripening or storage of fresh products such as vegetables or fruits. ing. Inside this tent, the internal temperature and humidity are controlled using an air conditioner.
These heat insulation tents are required not only to have a heat insulation performance to prevent thermal loss but also to have airtightness in which the moisture retaining water inside does not escape or outside air that oxidizes fresh products is not mixed. In addition, since these heat-insulating tents are folded and stored in the indoor ceiling portion when not in use, storage properties that can be compactly integrated are also required. Furthermore, since these heat-insulating tents are mainly used for storing food products, it is necessary to wash them in a timely manner to maintain cleanliness, and a cleanability that can be washed is also required.
Conventionally, a relatively thick film body in which a heat insulating material is interposed in between in order to have a heat retaining effect is connected to each other without a gap by a connector called a gusset at a corner portion to form a heat insulating tent, and these heat insulating materials A suspended warehouse is known in which a tent is folded around a gusset (see, for example, Patent Document 1). Further, there is known a cubic heat insulating tent formed by covering a heat insulating material with a waterproof coating as a heat insulating sheet and stitching a plurality of them together (see, for example, Patent Document 2).
Japanese Utility Model Publication No. 4-32459 JP 2000-141545 A

Thus, in the conventional heat insulating tent and the manufacturing method thereof, the heat insulating sheet coated with the heat insulating material is made into one unit, and these units are added by sewing, for example, the above-mentioned cubic heat insulating tent is obtained. It was manufactured.
However, the sewing process is a process that requires the number of workers and the work time, and as a result, there is a problem that the number of work steps increases. Further, the sewing process creates a narrow portion by sewing on the heat insulating wall surface, and a heat insulating material having a sufficient wall thickness cannot be secured in the narrow portion, and there is a problem that the heat insulating performance is inferior. On the other hand, the automatic folding mechanism found in the above hanging warehouse has a problem that the manufacturing process of the film body becomes complicated because the gusset is attached to the film body. Moreover, since the gusset part in a film body does not have a heat insulating material, there exists a problem in which heat insulation performance is inferior.
Therefore, the present invention has been invented in view of the above circumstances, and has a heat insulating material that has a uniform and sufficient wall thickness over the entire surface and can be folded by a simple mechanism. An object of the present invention is to provide a low-cost heat insulating tent excellent in productivity and a manufacturing method thereof.

According to a first aspect of the present invention, there is provided a heat insulating wall that forms a side wall, a top plate that forms a top wall, a frame that suspends the heat insulating wall, and an elevating means for moving the heat insulating wall up and down. The heat insulating wall is composed of a plurality of divided heat insulating units and an integral waterproof covering, and the heat insulating unit is fixed to the inner peripheral surface of the waterproof covering by fixing means. The waterproof coating is sequentially spread inside the waterproof coating, and the heat insulating wall has a heat insulating material having a uniform and sufficient wall thickness over the entire surface.
In the heat insulating tent according to the first aspect of the invention, the heat insulating wall is configured by sequentially spreading the heat insulating material unit while being fixed to the inner peripheral surface of the single waterproof covering by the fixing means. This eliminates the need for sewing in the manufacturing process of the heat insulation wall, simplifies the manufacturing process, and significantly reduces the number of work steps. Further, since the heat insulating wall does not have a narrow portion formed by sewing, the heat insulating wall can secure a heat insulating material having a sufficient thickness over the entire surface, and has excellent heat insulating performance. Furthermore, the joint between the heat insulating material unit and the heat insulating material unit becomes a fold when the heat insulating wall is folded. And since the seam by a sewing process does not exist in the outer peripheral surface of a heat insulation wall, a heat insulation wall has airtightness and can be washed with water, and comes to have a washability. At the same time, wrinkles are unlikely to occur on the surface of the heat insulating wall, and the aesthetic appearance is improved.

In the heat insulating tent of the second invention, the heat insulating unit has a cut near the center and is automatically folded by the lifting means.
In the heat insulation tent of the second invention, since the heat insulation unit has a notch in the vicinity of the central portion, the heat insulation wall is simply connected to the heat insulation wall by connecting a compression force to the heat insulation wall. And it can be easily bent around the notch.

In the heat insulating tent of the third invention, the heat insulating wall has a folding support mechanism at a position corresponding to the vicinity of the center of the heat insulating material unit, and is automatically folded by the lifting means.
In the heat insulation tent according to the third aspect of the invention, since the bending support mechanism is attached at a position corresponding to the vicinity of the central portion of the heat insulation unit of the heat insulation wall, the heat insulation wall is insulated only by applying a compressive force to the heat insulation wall. It can be easily bent by the action of the seam between the material unit and the heat insulating material unit and the bending support mechanism.

In the heat-insulating tent according to a fourth aspect of the invention, the heat-insulating wall has storage stabilizing means for stabilizing the folded shape.
In the heat insulation tent according to the fourth aspect of the invention, when the heat insulation wall is folded and suspended, the storage stabilizing means retains the storage form of the heat insulation wall, so that the folded heat insulation wall does not hang down and has excellent storage properties. It becomes like this.

According to a fifth aspect of the invention for achieving the above object, the heat insulating unit having a notch in the vicinity of the central portion is inserted from one opening end of the waterproof coating and fixed to the vicinity of the central portion of the waterproof coating by fixing means. The thermal insulation unit is laid out in a certain direction while being fixed to the inner peripheral surface of the waterproof coating by fixing means, and the thermal insulation unit does not protrude from the open end. When it reaches, the opening end is sealed and the portion filled with the heat insulating material unit is folded, and this time, the heat insulating material unit is inserted from the other opening end and fixed to the inner peripheral surface of the waterproof coating by fixing means. The material unit is spread in a certain direction, and when the insulation unit reaches the limit where it does not protrude from the other open end, the other open end is sealed to form a heat insulating wall And wherein the Rukoto.
In the method for manufacturing a heat-insulating tent according to the fifth aspect of the invention, for example, when the insulation unit is laid down on the portion corresponding to the lower half of the insulation wall, the portion of the insulation unit that has been laid is easily folded. Therefore, by folding the portion, a space corresponding to the lower half of the heat insulating wall can be newly generated. That is, according to this manufacturing method, a heat insulation wall can be manufactured in about half of the conventional work space. Therefore, in the newly generated space, a new heat insulating wall is manufactured, which contributes to a significant improvement in productivity.

According to the heat insulating tent of the present invention, the heat insulating wall is constructed by sequentially spreading the heat insulating unit in the waterproof coating while being fixed to the inner peripheral surface of the waterproof coating by the fixing means. Sewing is almost unnecessary in the process. As a result, the manufacturing process is simplified and the number of work steps is greatly reduced. Further, since the heat insulating wall does not have a narrow portion formed by sewing, the heat insulating wall can secure a heat insulating material having a sufficient thickness over the entire surface, and has excellent heat insulating performance. Furthermore, the joint between the heat insulating material unit and the heat insulating material unit becomes a fold when the heat insulating wall is folded. And since the seam by a sewing process does not exist in the outer peripheral surface of a heat insulation wall, a heat insulation wall has airtightness and can be washed with water, and comes to have a washability. At the same time, wrinkles are unlikely to occur on the surface of the heat insulating wall, and the aesthetic appearance is improved.
In addition, since the heat insulating unit has a cut near the center, the heat insulating wall can be easily bent around the joint and the cut of the heat insulating unit only by applying a compressive force to the heat insulating wall. Become. Alternatively, instead of or along with the notch, a folding support mechanism may be attached at a position corresponding to the vicinity of the center of the heat insulating material unit. In this case, the heat insulating wall can be easily centered on the joint and the bending support mechanism. It can be bent. Further, the folded heat insulating wall does not hang down by the storage stabilizing means, and the storage performance is excellent.
Further, according to the method for manufacturing a heat-insulating tent of the present invention, it becomes possible to manufacture a heat-insulating wall while saving work space. Therefore, the reduction in work man-hours and productivity coupled with the omission of sewing processing. Will contribute to the improvement.

  Hereinafter, the present invention will be described in more detail with reference to embodiments shown in the drawings. Note that the present invention is not limited thereby.

FIG. 1 is a perspective view showing a heat insulating tent 100 according to the present invention.
The heat insulating tent 100 includes a top plate 1 that forms a top wall, a heat insulating wall 2 that forms a side wall, a frame 3 that suspends the heat insulating wall 2, and a winder 4 that serves as an elevating means for moving the heat insulating wall 2 up and down. , A corner seal 5 that seals the joint between adjacent heat insulating walls 2, 2, a storage belt 6 that pulls up the heat insulating wall 2, a shaft 7 that winds up the storage belt 6, its bearing 8, and the shaft 7 A pulley 9 that interlocks with the machine 4, a storage stabilizer 10 as a storage stabilization means that holds the storage form of the heat insulating wall 2, and one end of the storage stabilizer 10 are rotatably locked and the heat insulating wall 2 is prevented from loosening. The balance weight 11 is provided.

  In addition, although mentioned later for details, the inside of the heat insulation wall 2 is comprised by the several rectangular-shaped heat insulating material unit, and the dotted line currently drawn over the horizontal direction of the heat insulating wall 2 in the figure is the heat insulating material unit and heat insulating material. The seam with the unit is shown. Incidentally, in the present embodiment, the inside of the heat insulating wall 2 is composed of six heat insulating material units of four large and two small. Further, the heat insulating material unit is not fixed by sewing that has been widely used in the past, but is directly fixed to the inner peripheral surface of the waterproof coating by, for example, bolts and nut fasteners. Therefore, although details will be described later with reference to FIGS. 5 to 7, the manufacturing process of the heat insulating wall 2 is greatly simplified, and as a result, it is possible to greatly reduce the number of conventional work steps. Further, on the outer peripheral surface of the heat insulating wall 2, almost no seam by sewing is observed, and further, wrinkles due to the seam are not generated and the appearance is not impaired.

  A circle mark on the surface of the heat insulating wall 2 represents a washer that stops a bolt and a nut or a loop fastener, and its peripheral portion is sealed with a heat insulating adhesive (not shown). Is suitably maintained. Therefore, the outer peripheral surface of the heat insulation wall 2 can be washed with water, and the growth of mold and germs is suitably prevented.

  Although details will be described later, when the storage belt 6 is wound by the winder 4, the balance weight 11 rises, the heat insulating wall 2 receives a compressive force, and the heat insulating wall 2 is folded neatly. . At this time, the storage form of the heat insulating wall 2 is maintained by the storage stabilizer 10, and the storage form such as the folded heat insulating wall 2 hangs down does not collapse.

FIG. 2 is an explanatory view of a main part showing the inner wall surface of the heat insulating wall 2.
Inside the heat insulating wall 2, a total of six heat insulating units, four large and two small, are laid down, and the large heat insulating units are fixed by fasteners 24 via washers 23 at the upper and central portions. The insulation unit is fixed at the top.

  For example, three storage belts 6 are disposed inside the heat insulating wall 2, and an upper end thereof is locked to a shaft 7 (not shown) and a lower end thereof is locked to a balance weight 11. Further, for example, four belt guides 61 are attached to one wall of the storage belt 6 in order to stabilize the storage belt 6. Alternatively, the storage belt 6 may be wound around the shaft 7 via a drum.

  Although details will be described later, when the storage belt 6 is wound around the shaft 7, the balance weight 11 rises and compresses the heat insulating wall 2, but the notch extends in the horizontal direction near the center of the heat insulating material unit. In addition, since a seam is formed between the heat insulating material unit and the heat insulating material unit, the heat insulating wall 2 is automatically folded neatly around these notches and seams.

  A storage stabilizer 10 (not shown) is rotatably attached to the balance weight 11, and holds the storage form of the heat insulating wall 2 in a stable posture when the heat insulating wall 2 is folded. Further, the balance weight 11 suitably prevents the heat insulation wall 2 from being loosened and suitably seals the joint portion of the heat insulation wall 2 with the ground. This makes it difficult for outside air to enter the inside of the heat insulating tent 100 or to let the inside air leak from the inside of the heat insulating tent 100.

3 is a cross-sectional view taken along line AA ′ of FIG.
The heat insulating wall 2 is composed of a plurality of heat insulating material units 21 and a waterproof covering 22 that is integrated. The material of the heat insulating material unit 21 is, for example, a foamed urethane foam material or a glass wool material. The material of the waterproof coating 22 is a synthetic resin sheet having moisture resistance and air blocking properties such as tarpaulin (a material obtained by sanding a polyester fiber fabric with a soft synthetic resin film). The thickness of the heat insulating material unit 21 is preferably 40 mm or more, and the thickness of the waterproof coating 22 is preferably 0.4 mm or more on one side. The top plate 1 is also made of the same material.

  The heat insulating material unit 21 is fixed to the inner peripheral surface of the waterproof coating 22 by a washer 23 and a fastener 24 as fixing means. Although not shown in the figure, the contact portion between the waterproof coating 22 and the washer 23 and the contact portion between the washer 23 and the fastener 24 are sealed with a heat insulating adhesive in order to maintain airtightness and heat insulating properties inside the heat insulating wall. It has been stopped. As a result, it is possible to prevent moisture or foreign matter from entering the inside of the heat insulating wall 2 and to suitably prevent the heat insulating performance from being deteriorated. Further, the heat insulating wall 2 can be washed with water.

  Further, a cut C is formed in the horizontal direction in the vicinity of the center of the heat insulating material unit 21. The depth of the cut C is preferably 50 to 70% of the wall thickness, for example. As a result, when the storage belt 6 is wound up, the heat insulating wall 2 is automatically folded neatly at the notch C and the seam J, and the heat insulating wall 2 has a storage property.

4 is a view taken in the direction of arrow B in FIG.
The belt guide 61 is, for example, a stainless steel pipe formed into a loop shape, and these are fixed to the wall surface of the heat insulating wall 2 by a loop fastener 25 via a washer 23. As the loop fastener 25, for example, an insulation lock tie can be used. Further, the belt guide 61 functions as a bending support mechanism that assists bending at the notch C when the storage belt 6 is wound around the shaft 7 and the heat insulating wall 2 is folded.

5 to 7 are explanatory views showing a method for manufacturing the heat insulating wall 2.
The heat insulation wall 2 is waterproof for six heat insulation units 21, for example, first, second, third, fourth, fifth and sixth heat insulation units 21a, 21b, 21c, 21d, 21e, 21f and one body. It is assumed that the cover 22 is formed and both ends of the waterproof cover 22 are opened at the beginning. In this case, first, the third heat insulating material unit 21 c is inserted from one opening end 22 </ b> E of the waterproof coating 22, and is fixed by a washer 23 and a fastener 24 near the center of the waterproof coating 22. Next, the second heat insulating material unit 21b and the first heat insulating material unit 21a are sequentially inserted and fixed, and the heat insulating material units corresponding to the lower half of the heat insulating wall 2 are spread. Thereafter, the opening end 22E is sealed. Sealing is performed by heat sealing, for example. FIG. 6 shows a state in which the heat insulating units 21a, 21b, and 21c corresponding to the lower half of the heat insulating wall 2 are spread.

  Next, the heat insulating units 21d, 21e, and 21f corresponding to the upper half of the heat insulating wall 2 are laid down. As described above, a cut C is provided in the vicinity of the center of each of the heat insulating units 21a, 21b, and 21c. Since the joint J is formed between the heat insulating unit and the heat insulating unit, the portion corresponding to the lower half of the heat insulating wall 2 is easily folded as shown in FIG. Then, the remaining heat insulating units 21d, 21e, and 21f are fixed while being inserted from the other opening end 22E, and spread inside the waterproof coating 22. As described above, when the portion corresponding to the lower half of the heat insulating wall 2 is folded, a new work space is generated. As a result, another heat insulating wall 2 can be manufactured, and productivity is improved. .

  Further, as described above, the heat insulating wall 2 is obtained by laying the heat insulating material unit 21 in a certain direction while fixing the heat insulating material unit 21 to the inner peripheral surface of the waterproof coating 22 with a washer 23 and a fastener 24, and therefore, by sewing. There are almost no processes, and the number of work steps can be greatly reduced.

  Since the heat insulation wall 2 does not have a seam by sewing, the thickness of the heat insulation material can be ensured uniformly and sufficiently over the entire surface, and the heat insulation performance is excellent. Moreover, since the through-hole by the fastener 24 is suitably sealed with a heat insulating adhesive (not shown), it can be washed with water, and the outer peripheral surface of the heat insulating wall 2 can always be kept clean.

FIG. 8 is an explanatory view showing the storage stabilizer 10. FIG. 8A is a front view, and FIG. 8B is a right side view.
The storage stabilizer 10 includes a first support bar 12 that supports the folded heat insulating wall 2, a second support bar 13 that supports the first support bar 12 by a loop portion 14, and a hinge that rotates the second support bar 13. It consists of 15 parts. The storage stabilizer 10 is fixed to the balance weight 11 at the lower side and is stored by the bag support portion 16 at the upper side.

  The storage stabilizer 10 can be rotated by the hinge portion 15. Further, the major axis of the bag support 16 has a sufficient margin with respect to the outer diameter of the first support rod 12, and the storage stabilizer 10 can cope with the expansion and contraction of the heat insulating wall 2.

FIG. 9 is an explanatory view showing a storage form of the heat insulating wall 2.
When the winder 4 (not shown) rotates and the pulley 9 (not shown) interlocked therewith rotates and the storage belt 6 is wound, the balance weight 11 rises. Since the upper end of the heat insulating wall 2 is blocked by the frame 3, the heat insulating wall 2 is folded neatly around the joint J and the notch C while receiving a compression action. Moreover, the heat insulation wall 2 is stably maintained by the storage stabilizer 10 during storage. Thereby, the attitude | position at the time of accommodation of the heat insulation wall 2 is stabilized, and the accommodation form, such as the folded heat insulation wall 2 hanging down, does not collapse.

According to the heat insulating tent 100 of the present invention, the heat insulating wall 2 is configured by sequentially laying the heat insulating material unit 21 inside the waterproof coating 22 while being fixed to the inner peripheral surface of the waterproof coating 22 by the washer 23 and the fastener 24. Therefore, almost no sewing is required in the manufacturing process of the heat insulating wall 2. As a result, the manufacturing process is simplified and the number of work steps is greatly reduced. Moreover, since the heat insulation wall 2 does not have the narrow part by a sewing process, the heat insulation wall 2 can ensure the heat insulating material of sufficient thickness over the whole surface, and comes to be excellent in heat insulation performance. Furthermore, the joint J between the heat insulating material unit 21 and the heat insulating material unit 21 becomes a fold when the heat insulating wall 2 is folded. And since the seam by a sewing process does not exist in the outer peripheral surface of the heat insulation wall 2, the heat insulation wall 2 has airtightness, can be washed with water, and has washability. At the same time, wrinkles are less likely to occur on the surface of the heat insulating wall 2 and the aesthetic appearance is improved.
Further, since the heat insulating unit 21 has the cut C in the vicinity of the center portion, the heat insulating wall 2 can be formed by connecting the joint J, the cut C and the belt guide of the heat insulating unit 21 only by applying a compressive force to the heat insulating wall 2. It can be easily bent around 61. Further, the folded heat insulating wall does not hang down by the storage stabilizer 10 and is excellent in storage performance.
Further, according to the method for manufacturing a heat insulating tent of the present invention, the heat insulating wall 2 can be manufactured while saving the work space. Will contribute to the improvement of sex.

FIG. 10 is an explanatory diagram illustrating a heat insulating wall 2A according to the second embodiment.
In the heat insulating wall 2, the cut C and the belt guide 61 are formed in the vicinity of the center of the heat insulating material unit 21, and the heat insulating wall 2 is automatically folded when subjected to a compression action. Even in 2A, a guide rod 17 as a folding support mechanism is attached to a portion corresponding to the vicinity of the central portion of the heat insulating material unit 21 by a loop fastener 25, and the heat insulating wall 2A is automatically folded when subjected to a compression action.

11 is a cross-sectional view taken along the line CC ′ of FIG.
The guide bar 17 is fixed by a loop fastener 25 in the vicinity of the center portion of the heat insulating material unit 21. The loop fastener 25 is fixed by, for example, a washer 23, and the periphery of the washer 23 is sealed with a heat insulating adhesive (not shown), so that the airtightness of the heat insulating wall 2A is maintained.

FIG. 12 is an explanatory diagram illustrating the storage stabilizer 10A according to the third embodiment.
The storage stabilizer 10 is configured to cope with fluctuations such as expansion and contraction of the heat insulating wall 2 by the bag support portion 16, but the storage stabilizer 10A is insulated by the second support bar 13 including the adjustment bar 13a and the main bar 13b. 2 is a configuration corresponding to fluctuations such as 2 expansion and contraction.

  The main bar 13b is inserted into the adjustment bar 13a and can slide along the inner peripheral surface of the adjustment bar 13a.

FIG. 13 is an explanatory view showing a storage form of the heat insulating wall 2.
When the winder 4 (not shown) rotates and the pulley 9 (not shown) interlocked therewith rotates and the storage belt 6 is wound, the balance weight 11 rises. Since the upper end of the heat insulating wall 2 is blocked by the frame 3, the heat insulating wall 2 is folded neatly about the joint J and the guide rod 17 while being compressed. At this time, the heat insulating wall 2 extends, but the main bar 13b of the storage stabilizer 10A slides on the inner peripheral surface of the adjusting bar 13a, and suitably corresponds to the expansion of the heat insulating wall 2. Furthermore, the storage form in which the heat insulating wall 2 is folded is stably maintained by the storage stabilizer 10A.

  In addition to freshness management, ripening or storage of fresh products such as vegetables or fruits, it is also applicable to storage of articles sensitive to temperature or humidity.

It is a perspective view which shows the heat insulation tent which concerns on this invention. It is principal part explanatory drawing which shows the wall surface inside a heat insulation wall. It is A-A 'sectional drawing of FIG. FIG. 4 is a view taken in the direction of arrow B in FIG. 3. It is explanatory drawing which shows the manufacturing method of a heat insulation wall. It is explanatory drawing which shows the semi-finished state of a heat insulation wall. It is sectional explanatory drawing which shows the state by which the part corresponded to the lower half of a heat insulation wall was folded. It is explanatory drawing which shows a storage stabilizer. It is explanatory drawing which shows the storage form of a heat insulation wall. It is explanatory drawing which shows the heat insulation wall which concerns on Example 2. FIG. It is C-C 'sectional drawing of FIG. FIG. 10 is an explanatory diagram illustrating a storage stabilizer according to a third embodiment. It is explanatory drawing which shows the storage form of a heat insulation wall.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Top plate 2 Heat insulation wall 3 Frame 4 Winder 5 Corner part seal 6 Storage belt 7 Shaft 8 Bearing 9 Pulley 10 Storage stabilizer 11 Balance weight 12 1st support bar 13 2nd support bar 14 Loop part 15 Hinge part 16 Bag support Part 17 Guide bar 21 Heat insulation unit 22 Waterproof coating 23 Washer 24 Fastener 25 Loop fastener 100 Thermal insulation tent

Claims (5)

  A heat insulating tent having a heat insulating wall forming a side wall, a top plate forming a top wall, a frame for suspending the heat insulating wall, and an elevating means for moving up and down the heat insulating wall, A plurality of divided heat insulating units and an integral waterproof cover, and the heat insulating unit is laid on the inside of the waterproof cover while being fixed to the inner peripheral surface of the waterproof cover by fixing means, A heat-insulating tent having a heat insulating material having a uniform and sufficient wall thickness over the entire surface.   The heat insulating tent according to claim 1, wherein the heat insulating material unit has a notch in the vicinity of a center portion, and the heat insulating wall is automatically folded by the elevating means.   The heat insulation tent according to claim 1 or 2, wherein the heat insulation wall has a folding support mechanism at a position corresponding to the vicinity of a central portion of the heat insulation material unit and is automatically folded by the elevating means.   The said heat insulation wall is a heat insulation tent in any one of Claim 1 to 3 which has the storage stabilization means which stabilizes the folded form.   After inserting a heat insulating material unit having a notch in the vicinity of the central part from one opening end of the waterproof coating and fixing it near the central part of the waterproof coating by a fixing means, insert another heat insulating material unit from one of the opening ends. The heat insulating unit is spread in a certain direction while being fixed to the inner peripheral surface of the waterproof coating by a fixing means, and when the heat material unit reaches the limit where it does not protrude from the opening end, the opening end is sealed and the heat insulating material Fold the part filled with the unit, this time insert the heat insulating material unit from the other opening end and spread the heat insulating material unit in a certain direction while fixing it on the inner peripheral surface of the waterproof coating by fixing means, When the limit that does not protrude from the other opening end is reached, a heat insulating wall is formed by sealing the other opening end,

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