Ice pack cover
The ice pack cover addresses the issues of short cooling duration and discomfort by containing the ice pack with insulation layers, enhancing the cooling time and user comfort.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- COGIT CORP
- Filing Date
- 2025-01-16
- Publication Date
- 2026-07-29
AI Technical Summary
Conventional ice packs have a short cooling duration due to ice melting quickly, expose the user to discomfort from condensation, and risk frostbite from direct skin contact.
An ice pack cover with a bag portion, attachment part, and cap design that contains the ice pack, blocking external heat and body heat, preventing condensation droplets from forming on the skin, and using an elastic resin and aluminum vapor-deposited layers for insulation.
Extends the cooling time of the ice pack, prevents discomfort, and reduces the risk of frostbite by maintaining a stable cooling effect for extended periods.
Smart Images

Figure 2026122699000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to an ice pack cover for holding an ice pack.
Background Art
[0002] For example, when engaging in activities outdoors in the middle of summer or when having a fever while bedridden due to illness, an ice pack in which ice or water is placed in a bag has been used for a long time to cool a part of the body. Conventional ice packs need to be held and supported by hand, and since the hands are occupied, a holder for an ice pack has been proposed that holds the ice pack in a state of being in contact with the part to be cooled (see, for example, Patent Document 1).
[0003] The holder for an ice pack described in Patent Document 1 includes an elastic band and a cut that is made at a predetermined length in the longitudinal direction of the band. By inserting the receiving opening of the ice pack through the cut, the ice pack is attached to the band, and by winding and fixing the band in a state of being in contact with the part to be cooled, the ice pack can be held without blocking both hands.
Prior Art Documents
Patent Documents
[0004]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0005] However, in the holder for an ice pack of Patent Document 1, since the ice pack is exposed to the outside, the ice in the ice pack easily melts, and the duration of the cooling effect (cooling time) is short. Also, since the ice pack is directly applied to the skin, water droplets generated on the surface of the ice pack due to condensation give the user an uncomfortable feeling. Furthermore, if the ice pack is continuously directly applied to the same part of the body, there is a risk of frostbite due to excessive cooling, so it is desirable to apply it through a cushioning cloth such as a handkerchief or a towel.
[0006] This invention has been made in view of the above-mentioned problems, and aims to provide an ice pack cover that extends the cooling time of the ice pack and allows the user to use the ice pack comfortably. [Means for solving the problem]
[0007] The characteristic configuration of the ice pack cover according to the present invention, which solves the above problems, is An ice pack cover for holding an ice pack, The bag portion for containing the ice pack, The aforementioned bag portion includes an attachment part for attaching it to the user's body, Equipped with, The ice pack comprises an opening into which ice and / or water can be put in and taken out, and a cap that is attached to the opening. The bag portion has a slit through which the cap is passed.
[0008] With this ice pack cover configuration, the ice pack is contained within the bag portion during use, preventing it from being exposed to the outside. Therefore, external heat and the user's body heat are blocked, slowing down the melting of the ice packed in the ice pack. As a result, the cooling time of the ice pack can be extended. In addition, condensation droplets that form on the surface of the ice pack remain inside the bag portion, preventing discomfort to the user. The ice pack is in contact with the user's body through the bag portion, so it does not directly touch the user's skin. Therefore, the contact area of the ice pack is prevented from becoming excessively cold, allowing the user to use the ice pack comfortably. The cap of the ice pack contained within the bag portion is passed through a slit, preventing the ice pack from slipping out of the bag portion during use. With the ice pack cap passed through the slit in the bag portion, the bag portion is attached to the user's body by the attachment part, allowing the ice pack to be stably held on the part of the body that needs to be cooled.
[0009] In the ice pack cover according to the present invention, It is preferable to have a covering portion that covers the cap that passes through the slit.
[0010] With this ice pack cover configuration, the covering portion covers the cap that passes through the slit, so the ice pack is not visible from the outside. Therefore, it is a design that is easy to use on a daily basis, and it is possible to create an ice pack cover that allows the user to use the ice pack comfortably. In addition, the covering portion also contributes to the insulation of the ice pack, which can further extend the cooling time of the ice pack.
[0011] In the ice pack cover according to the present invention, It is preferable to provide a fixing means for securing the covering portion to the bag portion.
[0012] With this ice pack cover configuration, since it is equipped with a fixing means to secure the covering part to the bag part, the covering part will not peel off during use and will always be able to cover the cap that is passed through the slit.
[0013] In the ice pack cover according to the present invention, The bag portion preferably has an elastic resin layer and an aluminum vapor-deposited layer.
[0014] With this ice pack cover design, the bag portion has both an elastic resin layer for adhesion and an aluminum vapor-deposited layer for heat insulation, significantly extending the cooling time of the ice pack. Furthermore, the increased waterproofing prevents condensation from seeping out of the bag. As a result, users can comfortably use the ice pack for extended periods.
[0015] In the ice pack cover according to the present invention, The attachment portion is preferably a neck-wrapping belt that extends from the bag portion to the left and right.
[0016] With this ice pack cover configuration, the attachment part is a neck-worn belt that extends from the bag to the left and right, allowing the ice pack to be securely held around the user's neck. This is particularly effective in preventing heatstroke during the summer.
[0017] In the ice pack cover according to the present invention, The ice pack containing the ice is placed in the bag portion. When left under the temperature condition of 30 to 40°C, let the time until the ice in the ice pack melts be A (hours). When the ice pack containing ice is not housed in the bag portion and left under the temperature condition of 30 to 40°C, let the time until the ice in the ice pack melts be B (hours). The time ratio [A / B] is preferably 1.5 or more.
[0018] According to the ice pack cover of this configuration, when the ice pack containing ice is housed in the bag portion and left under the temperature condition of 30 to 40°C, the time until the ice in the ice pack melts, and when the ice pack containing ice is not housed in the bag portion and left under the temperature condition of 30 to 40°C, the time until the ice in the ice pack melts, the time ratio is 1.5 or more. Therefore, by housing the ice pack in the bag portion, the cooling time of the ice pack can be sufficiently extended, and the user can comfortably use the ice pack for a long time.
Brief Description of the Drawings
[0019] [Figure 1] FIG. 1 is an explanatory view showing the usage state of the ice pack cover according to an embodiment of the present invention, (a) is a view seen from the back side of the user, and (b) is a view seen from the front side of the user. [Figure 2] FIG. 2 is an explanatory view of the ice pack housed in the ice pack cover of this embodiment. [Figure 3] FIG. 3 shows the ice pack cover of this embodiment, (a) is a plan view in the unfolded state, and (b) is a plan view after folding back. [Figure 4] FIG. 4 is an explanatory view showing a state in which the ice pack is housed in the bag portion of the ice pack cover of this embodiment. [Figure 5] FIG. 5 is a cross-sectional view schematically showing the layer structure of the bag portion in the ice pack cover of this embodiment.
Mode for Carrying Out the Invention
[0020] The present invention will be described below with reference to the drawings. However, the present invention is not intended to be limited to the embodiments and configurations described below or shown in the drawings. In the drawings, the shape, size, thickness, etc. of each part have been exaggerated or simplified as appropriate for the sake of clarity, and the size and thickness of each part shown in the drawings do not strictly reflect the actual size relationships (scale).
[0021] [Overall structure] Figure 1 is an explanatory diagram showing the usage state of an ice pack cover 1 according to one embodiment of the present invention, where (a) is a view from the user's back and (b) is a view from the user's front. As shown in Figure 1(a), the ice pack cover 1 is used to hold the ice pack 100 in contact with any part of the user's body. As shown in Figure 1, the user indicated by the symbol "M" in the figure can obtain a cooling sensation by wearing the ice pack cover 1 containing the ice pack 100 on their body. As shown in Figure 1(a), it is preferable that the ice pack cover 1 is shaped so that the ice pack 100 can be wrapped around the user's neck and held in contact with the back of the neck (Dazhui point), but the place where the ice pack cover 1 is wrapped is not particularly limited, and the ice pack 100 may be held in contact with other parts such as the head, armpit, arm, or leg. When the ice pack 100 is used wrapped around the user's neck, it is particularly effective in preventing heatstroke in the summer.
[0022] Figure 2 is an explanatory diagram of an ice pack 100 housed in the ice pack cover 1 of this embodiment. The ice pack 100 comprises an ice pack body 101 made of a flexible material and an opening 102 inside the ice pack body 101 for putting in and taking out ice and / or water, and a screw-on cap 103 is attached to the opening 102. The shape of the ice pack 100 is not particularly limited, and commercially available ones can be used. The cap 103 may be a push-on type.
[0023] Figure 3 shows the ice pack cover 1 of this embodiment, where (a) is a plan view in the unfolded state and (b) is a plan view after folding. The ice pack cover 1 comprises a bag portion 2 and an attachment portion 3. Furthermore, the ice pack cover 1 optionally comprises a covering portion 4 and a fixing means 5.
[0024] In this embodiment, the bag portion 2, the attachment portion 3, and the covering portion 4 are formed integrally by cutting the main material sheet 10 from the raw material sheet as required by punching and cutting, etc., to form the shape of the ice pack cover 1 in its unfolded state as shown in Figure 3(a), folding along the fold line 11, and joining the joint portion 12 as shown in Figure 3(b). Note that the bag portion 2, the attachment portion 3, and the covering portion 4 may be made by joining together separate parts. The following describes each component of the ice pack cover 1.
[0025] <Bag section> Figure 4 is an explanatory diagram showing the state in which an ice pack 100 is housed in the bag portion 2 of the ice pack cover 1 of this embodiment. As shown in Figure 4, the bag portion 2 houses the ice pack 100. In this embodiment, as shown in Figure 3(a), the bag portion 2 has a protrusion 21 and a pocket portion 22. The protrusion 21 is formed in an arc shape with one end (lower end) protruding at the longitudinal center of the main material sheet 10, and one surface is in contact with the user. The pocket portion 22 is formed in a semicircular shape that matches the arc-shaped edge of the protrusion 21, and has an arc portion 23 and a straight portion 24. The bag portion 2 is formed into a bag shape when the pocket portion 22 is superimposed on the surface of the protrusion 21 that is not in contact with the user, and the arc portion 23 is joined to the protrusion 21. The shape of the bag portion 2 can be appropriately selected according to the shape and size of the ice pack 100 to be used. As shown in Figure 3(a), the protruding length L1 of the bag portion 2 is preferably about 8 to 15 cm. By setting the protruding length L1 of the bag portion 2 to an appropriate length, as shown in Figure 1(a), the bag portion 2 is positioned to protrude downward when the user is wearing the ice pack cover 1 around their neck. As a result, the ice pack 100 is held in contact with the back of the neck (Dazhui point), allowing for efficient cooling, and is particularly effective in preventing heatstroke in the summer.
[0026] The bag portion 2, when used to house the ice pack 100, can extend the cooling time of the ice pack 100. The cooling time refers to the duration of the cooling effect of the ice pack 100, specifically, the time it takes for all the ice in the ice pack 100 to melt into water. Since the ice pack 100 is used while housed in the bag portion 2, the ice pack 100 is not exposed to the outside. Therefore, external heat and the user's body heat are blocked, slowing down the melting of the ice in the ice pack 100. As a result, the cooling time of the ice pack 100 can be extended. Furthermore, as shown in Figure 1(a), when the user is wearing the ice pack cover 1, condensation droplets formed on the surface of the ice pack 100 remain inside the bag portion 2 (on the side of the arc portion 23), thus not causing discomfort to the user. Since the ice pack 100 is in contact with the user's body via the bag portion 2, the ice pack 100 does not directly touch the user's skin. Therefore, it is possible to prevent the contact portion of the ice pack 100 from becoming excessively cold, allowing the user to use the ice pack 100 comfortably.
[0027] As shown in Figures 3(a) and 4, the bag portion 2 has a slit 25 through which the cap 103 is passed. As shown in Figure 3(a), the slit 25 is formed by cutting into the pocket portion 22 near the center, along the longitudinal direction of the main material sheet 10. After passing the cap 103 through the slit 25 formed in the pocket portion 22, when the user attaches the ice pack cover 1 to their body, the cap 103 of the ice pack 100 is positioned on the outside, allowing the user to comfortably continue to wear the ice pack cover 1. In addition, by passing the cap 103 of the ice pack 100 housed in the bag portion 2 through the slit 25, it is possible to prevent the ice pack 100 from shifting and falling out of the bag portion 2 during use. With the cap 103 of the ice pack 100 passed through the slit 25 of the bag portion 2, the bag portion 2 is attached to the user's body by the attachment portion 3, allowing the ice pack 100 to be stably held on the part of the body that needs to be cooled.
[0028] Figure 5 is a schematic cross-sectional view showing the layer structure of the bag portion 2 in the ice pack cover 1 of this embodiment. Preferably, the bag portion 2 has an elastic resin layer 15 and an aluminum vapor-deposited layer 16. In this embodiment, the entire main material sheet 10 has an elastic resin layer 15 and an aluminum vapor-deposited layer 16. In this embodiment, as shown in Figure 5, the bag portion 2 is a laminate provided in the order of base material layer 17, elastic resin layer 15, and aluminum vapor-deposited layer 16 from the outside. The aluminum vapor-deposited layer 16 is provided on the inner surface of the bag portion 2 (the surface that contacts the ice pack 100). In the protrusion 21, the base material layer 17 is provided on the surface that contacts the user, and in the pocket portion 22, the aluminum vapor-deposited layer 16 is provided on the surface that contacts the protrusion 21. The bag portion 2 has adhesion due to the elastic resin layer 15 and heat insulation due to the aluminum vapor-deposited layer 16, which can significantly extend the cooling time of the ice pack 100. Furthermore, the lamination of the elastic resin layer 15 and the aluminum vapor-deposited layer 16 enhances waterproofing, making it difficult for condensation droplets formed on the surface of the ice pack 100 to seep out of the bag portion 2. As a result, users can comfortably use the ice pack 100 for extended periods.
[0029] The material constituting the elastic resin layer 15 is not particularly limited as long as it has excellent elasticity, but examples include neoprene rubber, natural rubber, EVA rubber, isoprene rubber, butadiene rubber, styrene-butadiene rubber, silicone rubber, and polyurethane resins. Among these, neoprene rubber is preferred. Neoprene rubber has excellent elasticity and heat insulation properties and low thermal conductivity, so it can suppress the transfer of external heat and the user's body temperature to the ice pack 100, and prevent the coldness of the ice pack 100 from escaping to the outside. The thickness of the elastic resin layer 15 is preferably about 0.1 to 5 mm.
[0030] Examples of the aluminum vapor-deposited layer 16 include aluminum vapor-deposited fabric, aluminum vapor-deposited nonwoven fabric, aluminum vapor-deposited plastic sheet, aluminum vapor-deposited plastic sheet, aluminum vapor-deposited fabric, aluminum foil laminated fabric, and aluminum foil laminated sheet. Of these, aluminum vapor-deposited fabric is preferred from the viewpoint of elasticity. Knitted fabric is preferred as the fabric. The knitting structure of the knitted fabric is not particularly limited and can be set as appropriate. Because the aluminum vapor-deposited layer 16 is aluminum vapor-deposited fabric, the bag portion 2 can be suitably attached to the ice pack 100, and the coldness from the ice pack 100 can be trapped inside by radiation from the aluminum vapor-deposited layer 16, preventing the coldness from escaping to the outside. The thickness of the aluminum vapor-deposited layer 16 is preferably about 50 to 500 μm.
[0031] The material constituting the base layer 17 is not particularly limited, but examples include cloth, resin, leather, etc., and two or more of these may be combined. Furthermore, the base layer 17 is preferably elastic, and therefore preferably constructed as a knitted fabric. The knitting structure of the knitted fabric is not particularly limited and can be set as appropriate.
[0032] <Mounting part> The attachment part 3 is used to attach the bag part 2 to the user's body. By attaching the bag part 2 to the user's body using the attachment part 3, the ice pack 100 can be stably held on the part of the body that needs to be cooled.
[0033] In this embodiment, the attachment portion 3 is a neck wrap belt extending from the bag portion 2 to the left and right, as shown in Figure 3. The main material sheet 10 is folded along the fold line 11 to form a rectangular shape. Because the attachment portion 3 is a neck wrap belt extending from the bag portion 2 to the left and right, the ice pack 100 can be suitably held around the user's neck. Furthermore, because the attachment portion 3 is a neck wrap belt, it is easy to wrap around various places, allowing the ice pack 100 to be suitably held in other places such as the user's armpits or head (top of the head, back of the head). Therefore, it is particularly effective in preventing heatstroke in the summer.
[0034] When the attachment part 3 is a belt for wrapping around the neck, as shown in Figure 3(b), it is preferable that the length of the straight section 24 is L2 and the length of the attachment part 3 is L3, such that L2:L3 = 1:1 to 1:1.5. Furthermore, the length L2 of the straight section 24 is preferably about 12 to 18 cm, and the length L3 of the attachment part 3 is preferably about 18 to 25 cm. By setting the length L2 of the straight section 24 and the length L3 of the attachment part 3 within an appropriate range in this way, the user can comfortably wear the ice pack cover 1 while ensuring it is securely placed around their neck.
[0035] The mounting portion 3 has a locking portion 31. As shown in Figure 3(b), the locking portion 31 is provided at the end of the mounting portion 3. As shown in Figure 1(b), after the user wraps the ice pack cover 1 around their neck, the locking portion 31 connects the ends of the mounting portion 3, preventing the ice pack 100 from coming off the user's neck. Furthermore, it is preferable that the locking portion 31 allows for adjustment of the length of the mounting portion 3. In this embodiment, the locking portion 31 is a snap button that locks by pressing a recess 31a and a protrusion 31b together, and since there are multiple recesses 31a, the length of the mounting portion 3 can be adjusted by changing the position of the recesses 31a that press against the protrusion 31b. By being able to adjust the length of the mounting portion 3, the ice pack 100 can be held appropriately according to the thickness of the area to be wrapped and the user's preference. The locking portion 31 is not limited to a snap button, but for example, hook-and-loop fasteners, snaps, etc. may be used. Alternatively, the tip of the attachment part 3 may be extended so that it can be tied like a scarf.
[0036] <Covered part> The covering portion 4 covers the cap 103 that is passed through the slit 25. In this embodiment, as shown in Figure 3(a), the covering portion 4 is formed in an arc shape with the other end (upper end) protruding, so as to be symmetrical with respect to the convex portion 21 via the fold line 11 at the longitudinal center of the main material sheet 10. The covering portion 4 only needs to be shaped to cover at least the cap 103, and it is preferable that it is shaped to match the contour of the bag portion 2. As shown in Figure 1(a), since the covering portion 4 covers the cap 103 that is passed through the slit 25, the ice pack 100 is not visible from the outside. Therefore, it is possible to realize an ice pack cover 1 that is easy to use on a daily basis and allows the user to comfortably use the ice pack 100.
[0037] <Fixing means> The fastening means 5 is a means for fixing the covering portion 4 to the bag portion 2, and in this embodiment, the fastening means 5 is a snap button. As shown in Figure 3(a), the snap button is provided on both the pocket portion 22 and the covering portion 4. By providing the fastening means 5 for fixing the covering portion 4 to the bag portion 2, the covering portion 4 will not roll up during use and will always cover the cap 103 that is passed through the slit 25. The fastening means 5 is not limited to a snap button; for example, hook-and-loop fasteners, snaps, etc. may be used. Alternatively, the bag portion 2 and the covering portion 4 may be configured to be tied together with a string.
[0038] <Cooling time> In the ice pack cover 1 of the present invention, when an ice pack 100 filled with ice is placed in the bag portion 2 and left under temperature conditions of 30 to 40°C, the time until the ice in the ice pack 100 melts is A (hours), and when the ice pack 100 filled with ice is not placed in the bag portion 2 and left under temperature conditions of 30 to 40°C, the time ratio [A / B] is preferably 1.5 or more, more preferably 2.0 or more, and even more preferably 2.5 or more. For example, when an ice pack 100 filled with ice is not placed in the bag portion 2 and left under conditions of 36°C, the time B until the ice in the ice pack 100 melts is usually about 20 to 180 minutes. However, when the ice pack 100 filled with ice is placed in the bag portion 2, the time A until the ice in the ice pack 100 melts can be extended to about 30 to 270 minutes. In this case, the above time ratio [A / B] becomes 1.5. The above time ratio [A / B] can be adjusted by changing the configuration of the bag portion 2. For example, by increasing the thickness of the elastic resin layer 15 or the aluminum vapor-deposited layer 16, or by filling the bag portion 2 with foamed resin, the heat insulation effect is enhanced, making it more difficult for the ice inside the ice pack 100 to melt, thus increasing the time ratio [A / B]. Therefore, by housing the ice pack 100 in the bag portion 2, the cooling time of the ice pack 100 can be sufficiently extended, allowing the user to comfortably use the ice pack 100 for a long period of time.
[0039] Although the ice pack cover of the present invention has been described above based on one embodiment, the present invention is not limited to the configuration described in the above embodiment, and its configuration can be modified as appropriate without departing from the spirit of the invention. [Industrial applicability]
[0040] The ice pack cover of the present invention allows the user to hold the ice pack without occupying both hands, making it suitable for preventing heatstroke during outdoor activities in midsummer. [Explanation of Symbols]
[0041] 1 Ice pack cover 2 bag section 3. Mounting part 4. Covered part 5 Fixing means 15 Elastic resin layer 16. Aluminum vapor-deposited layer 25 slits 100 Ice Packs 102 Opening 103 Cap
Claims
1. An ice pack cover for holding an ice pack, The bag portion for containing the ice pack, The aforementioned bag portion includes an attachment part for attaching it to the user's body, Equipped with, The ice pack comprises an opening into which ice and / or water can be put in and taken out, and a cap attached to the opening. An ice pack cover having a slit formed in the bag portion through which the cap is passed.
2. The ice pack cover according to claim 1, further comprising a covering portion that covers the cap passed through the slit.
3. The ice pack cover according to claim 2, further comprising a fixing means for fixing the covering portion to the bag portion.
4. The ice pack cover according to claim 1, wherein the bag portion has an elastic resin layer and an aluminum vapor-deposited layer.
5. The ice pack cover according to claim 1, wherein the attachment portion is a neck-wrapping belt extending from the bag portion to the left and right.
6. The ice pack containing the ice is placed in the bag portion. Let A (hours) be the time it takes for the ice in the ice pack to melt when left at a temperature of 30-40°C. When the ice pack containing ice is not placed in the bag portion and left under temperature conditions of 30-40°C, the time it takes for the ice in the ice pack to melt is denoted as B (hours). The ice pack cover according to any one of claims 1 to 5, wherein the time ratio [A / B] is 1.5 or greater.