Temperature conversion time extension device and its manufacturing method

Abstract

To provide a temperature conversion time extending tool capable of maintaining heat or cold insulation effect longer than conventional tools, and a method for manufacturing the same. [Solution] The temperature conversion time extension device comprises a storage section (20) that stores a temperature adjustment material (30) that keeps the body warm or cold and has a contact surface (24) that comes into direct or indirect contact with the body, a base sheet (10) on which multiple storage sections are installed at intervals, and a sealing sheet (40) that faces the storage sections installed on the base sheet and seals the temperature adjustment material, and the storage section is configured so that the contact surface of the tip end protruding from the base sheet is smaller than the surface of the base end on the base sheet side.

Description

[Technical Field]

[0001] The present invention relates to a device for extending temperature transition time that is worn under a helmet, clothing, etc., or placed on bedding such as a pillow or mat, and that comes into direct or indirect contact with the body to keep warm or cold, and a method for manufacturing the same. [Background technology]

[0002] It is generally known that clothing is worn as a cooling accessory to prevent body temperature from rising in high-temperature working environments or during the summer. For example, there is a cooling vest that can be fitted with multiple ice packs on the front or back of the garment. This cooling vest has multiple bag-shaped ice pack enclosures separated by welding lines. The ice pack enclosures contain PCM (Phase Change Material) as the ice pack. The PCM material is prevented from moving uncontrollably between the outer and inner layers by the welding lines. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2024-91173 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in conventional accessories with ice packs, the area of the ice pack that comes into contact with the body is large, so the cooling effect does not last long. Therefore, a structure that can further prolong the cooling effect is desired. The present invention has been made in consideration of the above-mentioned demands, and an object of the present invention is to provide a device for extending the temperature change time, which has a heat or cold insulation effect that lasts longer than conventional devices, and a method for manufacturing the same. [Means for solving the problem]

[0005] A temperature conversion time extension device according to an embodiment of the present invention includes a storage section that stores a temperature regulating material that keeps the body warm or cold and has a contact surface that comes into direct or indirect contact with the body, a base sheet on which a plurality of the storage sections are installed at intervals, and a sealing sheet that faces the storage sections installed on the base sheet and seals the temperature regulating material. The contact surface of the storage section at its tip end protruding from the base sheet is smaller than the surface of its base end on the base sheet side.

[0006] A manufacturing method for extending temperature conversion time according to an embodiment of the present invention includes the steps of forming a plurality of storage sections that protrude at intervals from one side of a base sheet to the other side, storing a temperature-regulating material that keeps things warm or cold through an opening on one side of the storage section, and sealing the opening of the storage section that stores the temperature-regulating material with a sealing sheet, wherein the storage sections that protrude from the base sheet have a shape that becomes smaller from the base end on the base sheet side toward the contact surface that is the tip end. [Effects of the Invention]

[0007] The temperature change time extension device and the manufacturing method thereof according to the present invention can achieve the following excellent effects. In the temperature conversion time extension device according to the present invention, the contact surface of the distal end of the storage section is smaller than the surface of the proximal end, so that the heat and cold insulation effect can be maintained longer than in conventional devices. Furthermore, the manufacturing method for the temperature conversion time extension device can provide a temperature conversion time extension device whose heat and cold insulation effect can be maintained longer than in conventional devices. [Brief explanation of the drawings]

[0008] [Figure 1] 1A and 1B are diagrams showing a temperature conversion time extension device according to the first embodiment, in which (a) is a plan view of the temperature conversion time extension device, and (b) is a side view of the temperature conversion time extension device with the connecting belt omitted. [Figure 2] FIG. 1 is a perspective view showing an example of a temperature conversion time extension device according to a first embodiment, as seen from the front side. [Figure 3] FIG. 2 is a perspective view showing an example of a temperature conversion time extension device according to the first embodiment, as seen from the rear side. [Figure 4] FIG. 2 is a perspective view illustrating an example of a storage section of the temperature conversion time extension device according to the first embodiment. [Figure 5] FIG. 5 is a cross-sectional view taken along line VV in FIG. [Figure 6] FIG. 2 is an explanatory diagram illustrating a state in which the temperature conversion time extension tool according to the first embodiment is worn. [Figure 7] FIG. 10 is a plan view showing a temperature conversion time extension device according to a second embodiment. [Figure 8] FIG. 10 is a side view of the temperature conversion time extension device according to the second embodiment, with the connecting belt omitted. [Figure 9] FIG. 10 is a perspective view illustrating a state in which a temperature conversion time extension device according to a second embodiment is used with a helmet, as viewed from above. [Figure 10] FIG. 10 is a perspective view illustrating a state in which a temperature conversion time extension device according to a second embodiment is used with a helmet, as viewed from below. [Figure 11] FIG. 10 is an explanatory diagram illustrating a state in which the temperature conversion time extension tool according to the second embodiment is used with a helmet. [Figure 12] 1 is a flowchart showing a manufacturing method of the wearing device according to the present invention. [Figure 13] 1 is a cross-sectional view showing an application example of the temperature conversion time extension device of the present invention. [Figure 14] 10A and 10B are schematic cross-sectional views illustrating another manufacturing method of the temperature conversion time extension device according to the present invention, in which (a) is an explanatory diagram illustrating the state in which the storage section is manufactured as a single unit, (b) is an explanatory diagram illustrating the state in which the single storage section is filled with a temperature regulating material, (c) is an explanatory diagram illustrating the state in which the storage section filled with the temperature regulating material is sealed, and (d) is an explanatory diagram illustrating the state in which the sealed storage section is connected to the base sheet. [Figure 15] FIG. 1 is an explanatory diagram illustrating a state in which the temperature conversion time extension device according to the present invention is used on a pillow. [Figure 16] FIG. 1 is an explanatory diagram illustrating the state in which the temperature conversion time extension device according to the present invention is used in bedding. [Figure 17] 1A and 1B are diagrams illustrating modified examples of the storage section of the temperature conversion time extension device according to the present invention, where (a) is a side view showing a first modified example of the storage section, (b) is a side view showing a second modified example of the storage section, and (c) is a side view showing a third modified example of the storage section. [Figure 18] 1A and 1B are diagrams illustrating modified examples of the storage section of the temperature conversion time extension device according to the present invention, where (a) is a side view showing a fourth modified example of the storage section, and (b) is a side view showing a fifth modified example of the storage section. DETAILED DESCRIPTION OF THE INVENTION

[0009] The temperature conversion time extension device and its manufacturing method according to each embodiment will be described below with reference to the drawings. The drawings referred to in the following description are schematic illustrations of each embodiment, and therefore the scale, spacing, and positional relationships of each component may be exaggerated, or some components may be omitted. In the following description, the same names and symbols generally indicate identical or similar components, and detailed descriptions will be omitted as appropriate. Furthermore, the directions shown in each drawing indicate the relative positions of the components, and are not intended to indicate absolute positions.

[0010] The temperature conversion time extending device is used in summer or high temperature environments or winter or low temperature environments, and is in direct or indirect contact with the body to keep the body cool or warm. For example, this temperature conversion time extending device is attached to accessories such as the inside of a helmet or clothing, or to bedding such as a pillow or mattress, to regulate the body temperature.

[0011] First Embodiment As shown in Figures 1 to 3, the temperature conversion time extension device 100 comprises a base sheet 10, a storage section 20 installed on the base sheet 10, a temperature adjustment material 30 stored in the storage section 20, and a sealing sheet 40 that seals the temperature adjustment material 30.

[0012] The base sheet 10 is formed, for example, from a resin sheet such as thermoplastic polyurethane (TPU). The base sheet 10 is formed to fit the shape of the part of the body where it is to be worn. When worn on the upper body, for example, the base sheet 10 includes a first sheet 11 arranged to correspond to (face) the position of the front body, a second sheet 12 arranged to correspond to (face) the position of the back body, and a third sheet 13 arranged to correspond to (face) the position of the side body. The first sheet 11, the second sheet 12, and the third sheet 13 are configured to be detachably engaged with each other by connecting means such as connecting belts 14 (14A, 14B, 14C). The connecting belts 14 are equipped with connecting parts such as snap joints, fasteners, and buckles, and are configured to be operable by fingers.

[0013] Here, the first sheet 11 is formed of two sheets, a first right sheet 11A and a first left sheet 11B. The first right sheet 11A and the first left sheet 11B are formed, for example, in a line-symmetrical shape. The first right sheet 11A and the first left sheet 11B are each formed of chest-side portions 11A1 and 11B1 having a small area on the chest side of the body and abdominal-side portions 11A2 and 11B2 having a larger area on the abdominal side of the body than the chest-side portions 11A1 and 11B1. Furthermore, the first right sheet 11A and the first left sheet 11B each have a connecting belt 14A attached to the upper end of the chest-side portions 11A1 and 11B1, which connects to the connecting belt 14B of the second sheet 12. Furthermore, the first right seat 11A and the first left seat 11B have connection belts 14A at two locations on the abdominal portions 11A2 and 11B2, which connect the first right seat 11A and the first left seat 11B to the third seats 13 and 13.

[0014] The first right seat 11A and the first left seat 11B are installed with the storage compartments 20 aligned in the longitudinal direction and spaced apart from each other. The storage compartments 20 located at the corners of the first right seat 11A and the first left seat 11B are formed to have oblique sides, while the remaining compartments are formed to be rectangular in plan view. Because the storage compartments 20 of the first right seat 11A and the first left seat 11B are aligned in a straight line, they can be curved between the straight lines and can be worn to fit the curvature of the body. This allows the contact surface 24 of the storage compartment 20 to easily come into indirect or direct contact with the body. The configuration of the storage compartment 20 will be described later.

[0015] The second seat 12 is placed on the back side of the body, and the periphery of the single seat is curved to correspond to body parts and form a contoured fit. The second seat 12 has connection belts 14B, 14B connected to connection belts 14A, 14A installed in two locations on the upper end side of the first seat 11, and these connection belts are located on the left and right sides of the upper end. The second seat 12 also has connection belts 14B, 14B connected to the third seat 13, spaced apart in the vertical direction on the left and right sides. The storage compartments 20 installed on the second seat 12 are arranged in two rows from the center of the seat, and two more rows on each side of the two central rows.

[0016] The storage compartments 20 installed on the second seat 12 are arranged symmetrically from the center to the left and right. Furthermore, the three rows of storage compartments 20 on the left side, moving upward and downward from the center, are spaced apart and inclined to the left, while the three rows on the right side are inclined to the right. The storage compartments 20 are arranged in the two central rows so that their volumes and areas increase from the center downward. Furthermore, the storage compartments 20 are arranged in the two central rows so that their volumes and areas increase from the center upward, except for the top two rows. Furthermore, the storage compartments 20 in the two left and right rows arranged upward from the center are arranged so that their volumes and areas decrease from the center upward. The storage compartments 20 in the two left and right rows arranged downward from the center are arranged so that they have different volumes and areas.

[0017] The storage compartments 20 are arranged in rows that slope outward from the center in the vertical direction, which allows the second sheet 12 to easily curve along the shape of the latissimus dorsi and trapezius muscles of the back when worn on the body. This makes it easier for the contact surface 24 of the storage compartment 20 to come into indirect or direct contact with the body. The detailed configuration of the storage compartment 20 will be described later.

[0018] The third seat 13 is disposed on the side of the passenger's armpits and includes a third right seat 13A and a third left seat 13B. The third right seat 13A and the third left seat 13B are rectangular with rounded corners. The third right seat 13A and the third left seat 13B each have four connection belts 14C on their left and right sides that connect to the connection belts 14A, 14B of the first right seat 11A, the first left seat 11B, and the second seat 12, respectively. The third right seat 13A and the third left seat 13B have storage compartments 20 linearly arranged in two rows spaced apart from each other. The third right seat 13A and the third left seat 13B have storage compartments 20 located at the corners that are triangular in plan view, while the other storage compartments 20 are rectangular in plan view. The third right sheet 13A and the third left sheet 13B bend along the curvature of the body's sides, and the arrangement of the storage section 20 makes it easier for the contact surface 24 to come into direct or indirect contact with the body. The third right sheet 13A and the third left sheet 13B are formed to be half or less the length of the first sheet and the second sheet.

[0019] 4 and 5, the storage section 20 is a portion in which a temperature regulating material that keeps things warm or cold is stored. The storage section 20 is formed so that the contact surface 24 that forms the tip end is smaller than the surface of the first step 21 that forms the base end. In other words, the storage section 20 is formed so that the area W2 of the contact surface 24 of the third step 23 that forms the tip end is smaller than the area W1 of the surface of the base end of the base sheet 10. The surface of the base end refers to the portion with area W1 that is the inside of the part that rises from the base sheet 10 to form the storage section 20.

[0020] For example, the storage section 20 is formed in a stepped shape. When the storage section 20 has three steps, the area W2 of the contact surface 24 that is the upper surface of the third step 23 is smaller than the area W1 of the first step 21. The storage section 20 is formed integrally with the base sheet 10, for example, and the storage section 20 may be formed in the base sheet 10 using a male and female press mold, or by injection molding between upper and lower molds. Alternatively, the temperature adjusting material 30 may be previously stored in the storage section 20 and sealed with a sealing sheet 40, and then the storage section 20 may be attached to the base sheet 10 (see FIGS. 14(a) to (d)).

[0021] In other words, the shape of the storage section 20 is not limited as long as the contact surface 24 at the distal end is smaller than the surface at the proximal end. The storage section 20 contains a temperature regulating material 30 that keeps something warm or cold. As shown in FIGS. 4 and 5 , when the storage section 20 is stepped, the first step 21, the second step 22, and the third step 23 at the proximal end can accommodate a sufficient amount of the temperature regulating material 30. Since the contact surface 24 that directly or indirectly contacts the body is smaller than the first step 21 at the proximal end, the heat or cold insulation effect of the temperature regulating material 30 can be maintained for a long time. The storage section 20 is formed, for example, so that the centers of the steps coincide with each other in a plane. Although the steps have similar shapes in a plan view, the steps may have different shapes in a plan view. Furthermore, the shapes of the steps may be similar or different, and the centers of the planes of the steps may be aligned or may be in different positions.

[0022] As shown in FIG. 5, the area W2 of the contact surface 24 is preferably at least 10% smaller than the area W1 of the first step 21, which forms the base end. It is more preferably at least 20% or 30% smaller, and even more preferably at least 40% or 50% smaller. By making the area W2 of the contact surface 24 smaller than the area W1 of the first step 21, the heat or cold insulation effect can be maintained for 20 to 50% longer than conventional products. If the area W2 of the contact surface 24 is less than 10% smaller than the area W1 of the base end, the effect may be smaller than when the area W2 of the contact surface 24 and the area W1 of the base end are equal, making it difficult to claim that the heat or cold insulation effect is within a practical range. Therefore, it is preferable to make the area W2 of the contact surface 24 at least 10% smaller than the area W1 of the base end, which makes it easier to demonstrate that the heat or cold insulation effect is longer and more practical than conventional products.

[0023] The temperature adjusting material 30 stored in the storage section 20 is, for example, a phase change material (PCM: Phase Change Material). This temperature adjusting material 30 undergoes repeated phase changes, namely, dissolving and solidifying, and can be used over and over for a long period of time. By changing the material used, the temperature adjusting material 30 can be used in a temperature range where it can keep things warm or in a temperature range where it can keep things cold. The temperature adjusting material 30 is not limited to a phase change material, and other existing materials may also be used.

[0024] The sealing sheet 40 seals the temperature regulating material 30 stored inside the storage section 20. The sealing sheet 40 is preferably formed of, for example, the same material as the base sheet 10. The sealing sheet 40 is formed of a resin sheet such as thermoplastic polyurethane (TPU). The sealing sheet 40 is installed by being thermally pressed onto the base sheet 10 at a position facing the storage section 20 or by being bonded via an adhesive. The sealing sheets 40 are formed, for example, with sizes facing the first sheet 11, the second sheet 12, and the third sheet 13, respectively. The sealing sheet 40 may have the same thickness as the base sheet 10, or may be thicker or thinner. The sealing sheet 40 may be configured to seal all of the storage sections 20 by partially dividing the sealing sheet 40 and providing a divided sheet for each of the first sheet 11, the second sheet 12, and the third sheet.

[0025] 6, the temperature conversion time extension device 100 configured in this manner is in a state in which the contact surface 24 of the storage compartment 20 of the first sheet 11 contacts the front side of the body, the contact surface 24 of the storage compartment 20 of the second sheet 12 contacts the rear side of the body, and the contact surface 24 of the storage compartment 20 of the third sheet 13 contacts the side of the body. The area W2 of the contact surface 24 of each storage compartment 20 that contacts the body is smaller than the area W1 of the first step 21, which forms the base end of the storage compartment 20. Therefore, the heat or cold insulation effect of the temperature regulating material 30 of the storage compartment 20 can be prolonged by 20% to 50% or more compared to a conventional configuration in which the areas W1 and W2 are approximately the same. As an example, if the temperature regulating material 30 uses a latent heat axial heating material that undergoes a phase change at 24 degrees, and the contact surface 24 is in indirect contact with a body with a body temperature of 36 degrees via a shirt or directly with the body, the cooling time can be increased from 3 to 4 hours with a conventional configuration to 6 to 8 hours.

[0026] Next, a second embodiment will be described with reference to Figures 7 to 11. Note that the same components as those already described will be given the same reference numerals, and the description thereof may be omitted. The temperature conversion time extension device 100B is, for example, intended to be placed inside a hat or, as shown in Fig. 11, a helmet HM when used. As shown in Figs. 7 and 8, the temperature conversion time extension device 100B comprises a base sheet 50, a storage section 20, a temperature adjustment material 30 (see Fig. 5) stored in the storage section 20, and a sealing sheet 60. In addition, the temperature conversion time extension device 100B has connection belts 70 attached to two opposing left and right locations for attachment inside the helmet HM.

[0027] The base sheet 50 includes a central portion 51 and peripheral portions 52 arranged radially from the central portion 51. The central portion 51 is formed in a substantially circular shape, and the storage portion 20 is arranged to surround the center. The peripheral portions 52 are arranged extending radially from the central portion 51 and spaced apart from each other via grooves 53. The peripheral portions 52 are formed in a fan-like shape continuing from the central portion 51. The peripheral portions 52 are also formed with their side surfaces spaced apart from each other via the grooves 53. The grooves 53 separating the peripheral portions 52 are sides having a length such that the groove bottoms 54 form the outer periphery of the central portion 51 in a plan view. The outer periphery of the central portion 51 is formed as a straight portion, for example. The groove bottoms 54 may be a circumferential portion (curved portion, arc) as the outer periphery of the central portion 51. Because the groove bottoms 54 have a fixed length, the base sheet 50 can be formed along a plane as shown in Fig. 7, and can be easily curved to fit the head as shown in Figs. 9 and 10. Note that although the shape of the peripheral edge 52 in a plan view is shown as a fan shape, it may be rectangular or have other shapes. Furthermore, the base sheet 50 is preferably made of the same material as the base sheet 10 already described.

[0028] The storage section 20 has a different shape in FIGS. 1 to 6 but is the same as that already described. As shown in FIG. 7, the storage section 20 is formed, for example, in a stepped shape that protrudes from one surface of the base sheet 50 to the other surface. The storage section 20 may be formed so that the center of the first step 21 in a plan view, the center of the second step 22 in a plan view, and the center of the third step 23 in a plan view coincide with or do not coincide with each other. The shape of each step in a plan view is not particularly limited. The contact surface 24, which is the distal end of the storage section 20, is formed to be smaller than the surface of the proximal end of the storage section 20, and has the configuration already described.

[0029] The temperature adjusting material 30 stored in the storage section 20 is the same as that already explained. The sealing sheet 60 is disposed opposite the storage section 20, and here, as an example, is attached to the base sheet 50 while facing the base sheet 50. The sealing sheet 60 is formed in the same planar shape as the base sheet 50. The sealing sheet 60 is preferably formed from the same material as the base sheet 50. Furthermore, the connecting belts 70 are connected to the peripheral edge portions 52 and are arranged to face each other. The connecting belts 70 are adapted to be attached to a headband provided inside the helmet HM.

[0030] Because the temperature conversion time extension device 100B is configured as described above, by putting the helmet HM on the head with the connection belt 70 attached to the headband of the helmet HM, the contact surface 24 of the storage compartment 20 comes into direct or indirect contact with the head, and the temperature of the head can be maintained at a comfortable level by the temperature adjustment material 30. Note that the helmet HM can also be worn with a paper helmet inner hat, and the contact surface 24 can also be indirectly in contact with the head. For example, if the temperature conversion time extension device 100B uses a temperature adjustment material 30 for keeping the temperature cool, the inside of the helmet HM will not become too hot and a comfortable environment can be maintained for a longer period of time than conventional devices.

[0031] Next, a method for manufacturing the temperature conversion time extension devices 100 and 100B will be described with reference to FIG. The temperature conversion time extension device 100 and the temperature conversion time extension device 100B differ only in the shapes of the base sheet and the sealing sheet, and other configurations and procedures are the same. The manufacturing method S10 of the temperature conversion time extension tool includes steps including a cutting step S11, a storage section forming step S12, a temperature adjusting material storing step S13, and a sealing step S14. The cutting step S11 is a step of cutting the base sheets 10 and 50 to correspond to the parts of the body to be worn. Therefore, in the cutting step S11, when worn on the torso, the base sheet 10 is cut into a first sheet 11, a second sheet 12, and a third sheet 13. In addition, in the cutting step S11, when worn on the head, the base sheet 50 is cut into a central portion 51 and a peripheral portion 52.

[0032] The storage section forming step S12 is a step of forming a plurality of storage sections by protruding at intervals from one surface of the base sheet 10 or the base sheet 50 toward the other surface. In the storage section forming step S12, a predetermined number of storage sections 20 having a predetermined shape are formed at predetermined positions. For example, in the case of the first sheet 11, as shown in FIG. 1, the storage sections 20 are formed so that 12 storage sections 20 are arranged in two rows in the chest side portion 11a1 of the first right sheet 11A, and 15 storage sections 20 are arranged in three rows in the abdominal side portion 11a2. In the storage section forming step S12, as an example, a press machine using a male mold and a female mold is used to form the storage sections 20 in the base sheets 10, 50. The formed storage sections 20 are formed so that the contact surface 24, which is the tip end, is smaller than the surface of the base end.

[0033] The temperature adjusting material storing step S13 is a step of storing (filling) a temperature adjusting material that keeps things warm or cold through an opening on one side of the storage section. In the temperature adjusting material storing step S13, for example, a phase change material (PCM) is stored as the temperature adjusting material 30 by filling it in a liquid or gel state, or by filling it in a cooled state so as to become a solid state into the storage section 20. The sealing step S14 is a step of sealing the opening of the storage section containing the temperature regulating material with a sealing sheet. In the sealing step S14, the sealing sheets 40, 60 are pre-cut into the same shape as the base sheets 10, 50, and the cut sealing sheets 40, 60 are placed face-to-face with the base sheets 10, 50, and the periphery of the opening of the storage section 20 is welded or pressed by heat or pressure. Note that in the sealing step S14, the sealing sheets 40, 60 and the base sheets 10, 50 may be connected so that all of their facing positions are welded or pressed.

[0034] Thereafter, the connecting belts 14, 70 are installed at predetermined positions of the joined encapsulating sheet 40 and base sheet 10, or the joined encapsulating sheet 60 and base sheet 50. This results in the manufacture of the temperature conversion time extension device 100 or the temperature conversion time extension device 100B. In the manufacturing method S10 for the temperature conversion time extension device, the steps are performed as described above, making it possible to manufacture the temperature conversion time extension device 100, 100B, which can extend the time for keeping something hot or cold by 20% or more compared to conventional devices. Note that the manufacturing method S10 for the temperature conversion time extension device is merely an example, and the manufacturing method for the temperature conversion time extension device may also be performed in the following procedure to obtain the configuration shown in FIG. 14.

[0035] That is, in the method S10 for manufacturing a temperature conversion time extension device, as shown in FIG. 13 , in the sealing step, the sealing sheets 40, 60 are pressed or welded to the base sheets 10, 50 at positions facing the storage section 20 so that the temperature adjusting material 30 in the storage section 20 is filled without air being mixed in. The subsequent step of connecting the cover sheet 80 facing the sealing sheets 40, 60 may be performed before attaching the connecting belt 14. The cover sheet 80 is connected to the sealing sheets 40, 60 at the position facing the storage section 20 with a space AS left. Therefore, the cover sheet 80 is perceived as flat from the outside, and the appearance is not impaired. The connection between the cover sheet 80 and the sealing sheets 40, 60 may be made using an adhesive, welding, or crimping, and is not particularly limited.

[0036] Furthermore, a manufacturing method for a temperature conversion time extension device may be performed using the procedure shown in Figure 14. That is, the manufacturing method may include the steps of forming a storage section 20N as a unit to be installed in advance, filling the storage section 20N with temperature adjusting material 30, sealing the filled temperature adjusting material, and attaching the storage section with the sealed temperature adjusting material to a base sheet. When forming the storage section 20N as a unit, a flange portion 25 is formed around the opening edge at the lower end of the storage section 20N. As an example, the storage section 20N is formed in a stepped shape and has a contact surface 24 at its tip, and the contact surface 24 is formed smaller than the base end side rising from the flange portion 25.

[0037] Next, the temperature regulating material 30 is filled into the storage section 20N from the opening side. Then, the storage section 20N filled with the temperature regulating material 30 is sealed with a sealing sheet 40N. The sealing sheet 40N is connected face-to-face to the flange portion 25 of the storage section 20N, thereby sealing the temperature regulating material 30 inside the storage section 20N. The shape, size, and number of the storage sections 20N are set in advance. For example, the shape, size, and number of storage sections 20N are prepared as shown in FIG. 1 or FIG. 7. Then, the storage section 20N formed individually is placed in a set position on a pre-formed base sheet 10N. The storage section 20N is installed by connecting it to the base sheet 10N on the back surface of the sealing sheet with, for example, an adhesive. After that, a connecting belt is attached, and the temperature conversion time extension device is manufactured.

[0038] It should be noted that the storage section 20N may be manufactured as a single unit, or two, three, or even four or more units may be manufactured as a single unit. The temperature conversion time extension device can also be used with bedding such as pillows HL and mattresses ML, as shown in Figures 15 and 16. The configurations of the temperature conversion time extension devices 100C and 100D are different in shape from those already described, but are the same, and detailed description thereof will be omitted.

[0039] 15, the temperature conversion time extending device 100C has storage compartments 20 formed at intervals on a rectangular base sheet 10, and is installed so that the contact surface 24 faces the head. As an example, the temperature conversion time extending device 100C is used by placing or wrapping the base sheet 10 around a pillow HL and then wrapping a towel or the like around it.

[0040] As shown in FIG. 16, a plurality of temperature conversion time extension devices 100D are placed on a mattress ML for use. The temperature conversion time extension device 100D has storage compartments 20 spaced apart from one another on a rectangular base sheet 10. The temperature conversion time extension devices 100D are formed to a size that allows multiple devices to cover the entire mattress ML. By making the size of the temperature conversion time extension device 100D smaller than the entire mattress ML, the temperature conversion time extension device 100D can be easily placed in a refrigerator or the like, making it easy to handle. In the temperature conversion time extension devices 100C and 100D, the area W2 of the contact surface 24 is smaller than the area W1 of the base end surface, so that the temperature can be adjusted for a longer period of time compared to conventional devices.

[0041] Furthermore, the shape of the storage section described above may be, for example, as shown in Figures 17 and 18. The shape of the storage section will be described below using examples of Modifications 1 to 5. Furthermore, the same components will be assigned the same reference numerals and descriptions thereof will be omitted.

[0042] 17(a), the storage section 20B as the first modified example is formed in two steps. The area W2 of the contact surface 24b at the tip end of the storage section 20B is smaller than the area W1 of the surface at the base end. The storage section 20B is easy to manufacture because it has a small number of steps.

[0043] 17(b), the storage section 20C as the second modified example is formed in four steps. The area W2 of the contact surface 24c at the tip end of the storage section 20C is smaller than the area W1 of the surface at the base end. Because the storage section 20C has many steps, it can store a large amount of temperature regulating material.

[0044] 17(c), a storage section 20D as a third modified example is formed in the shape of a truncated cone or a truncated pyramid. The area W2 of the contact surface 24d at the tip of the storage section 20D is smaller than the area W1 of the surface at the base end. The storage section 20D has a simpler shape than a stepped storage section, making it easier to manufacture.

[0045] As shown in FIG. 18(a), the storage section 20E of the fourth modified example is formed in a dome shape, and the contact surface 24e at the tip end is a flat surface with an area W2 smaller than the area W1 of the surface at the base end. The contact surface 24e of the storage section 20E is flat, but it may also be formed as a curved surface as shown by the dotted line. In this case, the storage section 20E is formed in a hemispherical shape. When formed in a hemispherical shape, the contact surface 24e1 is the upper third of the hemisphere and is smaller than the area W1 of the surface at the base end of the hemisphere.

[0046] 18(b), the storage section 20F as the fifth modified example is formed in a stepped shape with a curved surface. The contact surface 24f, which is the tip end of the storage section 20F, is also formed in a curved surface. The area W2 of the contact surface 24f is smaller than the area W1 of the surface at the base end. As explained above, regardless of the shape of the storage section, the contact surface area W2 is smaller than the base end surface area W1, which makes it possible to prolong the effect of the temperature regulating material stored in the storage section by 20% or more compared to conventional storage sections. If the storage section is formed in a stepped shape, the height of each step and the shape in plan view are not limited. Furthermore, the shape of the contact surface in plan view is not limited to a circle, ellipse, square, etc., and the state of the contact surface may be flat or curved.

[0047] Furthermore, the temperature conversion time extending devices shown are those worn on the head and those worn on the torso, but they may also be worn under trousers or a skirt to keep the legs warm or cool. When keeping the legs warm or cool, a long, narrow base sheet is provided facing the outer and / or inner surfaces of the legs above the knees, and for example, the shape of the third sheet shown in Figure 1 can be used.

[0048] The embodiments have been described in detail to clearly explain the present disclosure, and are not necessarily limited to those including all of the configurations described. Furthermore, some of the configurations of each embodiment can be added to, deleted from, or replaced with other configurations. Furthermore, the mechanisms and configurations described above are those that are considered necessary for the explanation, and do not necessarily represent all mechanisms and configurations of the product. [Industrial Applicability]

[0049] The temperature conversion time extending device according to the embodiment can be worn directly or indirectly on the body in summer or other high temperature environments when temperatures are high, or in winter or other low temperature environments when temperatures are low. [Explanation of symbols]

[0050] 10, 10N, 50 base sheet 11 Sheet 1 11a1 Chest side 11a2 ventral part 11A 1st right seat 11B 1st left seat 12 Second Sheet 13 Third Sheet 13A 3rd right seat 13B 3rd left seat 14, 14A, 14B, 14C, 70 Connecting belt 20, 20B, 20C, 20D, 20E, 20F, 20N Storage area 21 First step 22 Second step 23 Third step 24, 24b, 24c, 24d, 24e, 24e1, 24f contact surface 25 flange 30 Temperature adjustment material 40, 40N, 60 Encapsulating sheet 51 Central part 52 Periphery 53 Groove 54 Groove bottom 80 cover sheet 100, 100B, 100C, 100D Temperature conversion time extension tool AS space HM Helmet S10 manufacturing method S11 Cutting process S12 Storage section forming process S13 Temperature control material storage process S14 Sealing process W1 Area of base end W2 Contact area

Claims

1. The device comprises a storage section that stores a temperature regulating material that keeps warm or cold and has a contact surface that comes into direct or indirect contact with the body, a base sheet on which a plurality of the storage sections are installed at intervals, and a sealing sheet that faces the storage sections installed on the base sheet and seals the temperature regulating material, The storage section has a stepped shape of either two, three or four steps from the base end to the tip end, protruding from the base sheet, and the contact surface of the tip end protruding from the base sheet is smaller than the surface of the base end on the base sheet side, in this temperature conversion time extension device.

2. The base sheet includes a first sheet disposed in a position corresponding to the front body part of the body, a second sheet disposed in a position corresponding to the back body part of the body, and a third sheet disposed in a position corresponding to the side body part of the body, 2. The temperature conversion time extending device according to claim 1, wherein the first sheet, the second sheet, and the third sheet are detachably engaged with each other via connecting means.

3. the base sheet includes a central portion disposed at the center and peripheral portions formed radially from the central portion and spaced apart from each other via grooves, 2. The device for extending temperature conversion time according to claim 1, wherein the groove portion is a side portion having a length such that the bottom of the groove forms the outer periphery of the central portion in a plan view.

4. A method for manufacturing the temperature conversion time extension device according to claim 1, forming a plurality of storage sections projecting at intervals from one surface of a base sheet to the other surface thereof in a two-, three-, or four-tiered shape; a step of storing a temperature adjusting material that keeps the temperature warm or cold through an opening on one side of the storage section; and sealing the opening of the storage section storing the temperature regulating material with a sealing sheet, A method for manufacturing a temperature conversion time extension device, wherein the storage section protruding from the base sheet has a shape that becomes smaller from the base end on the base sheet side toward the contact surface at the tip end.

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