Backpack cooling device

Abstract

To provide a backpack cooling device that can regulate the body temperature of a wearer even when used in combination with a backpack, without depending on clothing. [Solution] The backpack cooling device is interposed between the backpack and the back of the user wearing the backpack and comprises a back bag portion with an air vent, a blower that supplies air to the back bag portion, a storage bag portion that houses the blower, and a connection portion that guides air from the storage bag portion to the back bag portion, the back bag portion is fixed to the backpack, and a guide opening is formed in the back bag portion that takes in air supplied from the connection portion, and a mesh member is arranged on the surface of the storage bag portion where the blower takes in air.

Description

[Technical Field]

[0001] The present invention relates to a backpack cooling device, and more particularly to a backpack cooling device that cools a backpack via an air conditioning device attached to the backpack. [Background technology]

[0002] In recent years, there has been progress in the development of clothing and equipment that can maintain comfort even in high-temperature environments at work sites and during outdoor activities. As part of this effort, clothing equipped with an air conditioning device for regulating the wearer's body temperature has been proposed (see Patent Document 1, etc.).

[0003] Patent Document 1 discloses an air conditioning unit that is worn on the back of a wearer. This air conditioning unit includes a vest body with a back portion that covers the back of the wearer, and a fan that is provided in the back portion and takes in air from the outside. The back portion has a pair of sheet materials, a ventilation material provided between the two, and an opening that discharges air that has passed through the ventilation material. The air taken in by the fan passes through the ventilation material and is discharged from the opening. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2024-80036 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the conventional air conditioning units described above are configured to be attached to the vest body, which is part of the clothing, and because components such as the fan and cooling material are integrated into the clothing, there is little freedom in the placement of components, making it difficult to flexibly design them according to the wearer's physique and purpose.

[0006] In particular, when a user wears a backpack or other such back pack, the backpack compresses the vest and reduces airflow, making it difficult for the user to achieve the desired cooling effect. Therefore, we provide a backpack cooling device that provides sufficient air conditioning even when the user is wearing a backpack. [Means for solving the problem]

[0007] In one embodiment of the backpack cooling device of the present invention, the present invention may include a back bag portion interposed between the backpack and the back of a user wearing the backpack and having an air vent, a blower that supplies air to the back bag portion, a storage bag portion that houses the blower, and a connection portion that guides air from the storage bag portion to the back bag portion.

[0008] In one embodiment of the backpack cooling device of the present invention, the back bag portion of the present invention may be fixed to the backpack, and an induction opening may be formed in the back bag portion to take in air supplied from the connection portion.

[0009] In the backpack cooling device according to one embodiment of the present invention, the storage bag of the present invention may have a mesh member on the surface through which the blower takes in air.

[0010] In one embodiment of the backpack cooling device of the present invention, the storage bag portion of the present invention may store ice packs near the blower, and air that has come into contact with the ice packs may be supplied from the storage bag portion to the back bag portion via the connection portion.

[0011] In one embodiment of the backpack cooling device of the present invention, the connecting portion of the present invention is made of a flexible material, and the storage bag portion may be located at a different position on the backpack from the back bag portion.

[0012] In the backpack cooling device according to one embodiment of the present invention, the ventilation holes of the present invention may be arranged in a plurality of dispersed positions on the back bag portion. [Effects of the Invention]

[0013] According to the present invention, the backpack is configured as a cooling device that can be attached to a backpack and includes a back pouch portion with a vent hole that is interposed between the backpack and the back of the user wearing the backpack, a blower that supplies air to the back pouch portion, a storage pouch portion that houses the blower, and a connector that directs air from the storage pouch portion to the back pouch portion. Therefore, the cooling device can regulate the wearer's body temperature even when used in conjunction with a backpack or other such backpack. Furthermore, the configuration that allows the blower and cooling means to be separately placed in different positions on the backpack increases the flexibility of the layout of the components, allowing for flexible design according to the user's physique and purpose. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is an overall side view showing a state in which the backpack cooling device of the embodiment is used. FIG. [Figure 2] FIG. 1 is an overall perspective view of a backpack and a backpack cooling device. [Figure 3] FIG. 1 is a front view of only the backpack cooling device. [Figure 4] 3A and 3B are schematic diagrams showing the configuration of a storage bag portion. [Figure 5] FIG. 2 is a cross-sectional schematic view of the storage bag portion. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, one embodiment of the present invention will be described. First, an outline of a backpack cooling device 10 according to one embodiment will be described. Fig. 1 is an overall side view of a person using a backpack, with the backpack cooling device 10 of the embodiment attached to the backpack. Fig. 2 is a front view of only the backpack 11 and the backpack cooling device 10 (a backpack is used as an example of the backpack 11 in Fig. 2).

[0016] 1, backpack cooling device 10 includes a back bag portion 40, a storage bag portion 20, and a connection portion 30. Additionally, as shown in FIG. 2, backpack cooling device 10 is attached to backpack 11 (a school bag in this embodiment) so as to straddle the side of backpack 11 and back portion 12 of the backpack that abuts against the user's back 14.

[0017] The backpack 11 shown in FIG. 1 is an example of a backpack used by children. The backpack 11 (rando-sel) is provided with a strap 13, and is worn by the user. The backpack 11 according to this embodiment is not limited to rando-sel, and can be applied to various backpacks worn on the back, such as rucksacks, backpacks, and hiking backpacks. For example, some rucksacks allow items to be loaded and unloaded from the top, while others open and close all the way. While each type of backpack has a different back structure, the backpack cooling device 10 can accommodate these structures by changing the shape and mounting position of the back pouch 40. Furthermore, the backpack 11 can be made of flexible materials such as cotton, linen, and synthetic fibers, as well as types with rigid resin exteriors, and can be applied without significantly changing the device's configuration.

[0018] The back bag portion 40 is a member that is disposed between the backpack 11 and the back 14 of the user who is carrying the backpack 11. In order to efficiently introduce the air supplied to the inside, the back bag portion 40 is made of a flexible and airtight material, such as a synthetic resin film material used in insulated bags or a sheet material laminated with foamed polyethylene.

[0019] As shown in FIG. 3 below, the blower 21 is located at a position different from the back bag portion 40, such as on a side or bottom portion of the backpack 11, and is housed in the storage bag portion 20. The back bag portion 40 is located on the user's back, and by locating the blower 21 away from the back bag portion 40, interference between the various portions is avoided. The blower 21 and the back bag portion 40 are connected by a flexible connecting portion 30, and air taken in by the blower 21 is supplied to the back bag portion 40 through the connecting portion 30. As can be seen from FIG. 2, the storage bag portion 20 and the back bag portion 40 are connected by the connecting portion 30, and therefore can be attached to different sides and portions of the backpack 11. Even when bent at a right angle as shown, the flexible connecting portion 30 minimizes interference with airflow from the storage bag portion 20 to the back bag portion 40.

[0020] A portable fan is used as the blower 21. The blower 21 is sized to be easily accommodated in the storage bag 20. In addition to a portable fan, an air introduction device equipped with a PC cooling fan, an impeller, a turbo fan, or the like is also used as the blower 21. The power source for the blower 21 is a dry cell battery or a rechargeable power supply unit (not shown), and the air volume and operating state are controlled by an external switch.

[0021] The material for the storage bag 20 is lightweight, flexible, and has adequate breathability and durability. Examples include nylon cloth, polyester cloth, nonwoven fabric, and mesh cloth. In particular, the mesh member disposed on the air intake surface is made of a material that does not impede the passage of air and prevents the intrusion of foreign matter, such as a coarse polyester mesh or nylon net.

[0022] A highly breathable mesh member is arranged on the surface of the storage bag portion 20 facing the intake side of the blower 21 so as not to obstruct the intake of air, thereby enabling smooth introduction of air.

[0023] The connecting part 30 is a flexible member that constitutes an air flow path for communicating between the blower 21 and the back bag part 40. This allows the arrangement of the connecting part 30 to be freely changed depending on the arrangement of the storage bag part 20 and the back bag part 40 in the backpack 11. One end of the connecting part 30 is connected to the blower 21. Then, as shown in FIG. 3 below, the other end of the connecting part 30 is connected to the guide opening 41 of the back bag part 40.

[0024] The material used for connection part 30 must not interfere with the flow of air sent by blower 21 and must be able to bend freely in response to the movement of backpack 11 and the user's posture, so a material that is both flexible and elastic is suitable. Specific examples include rubber, silicone rubber, polyurethane, and thermoplastic elastomer. Connection part 30 can also be configured, for example, by using a commercially available rubber glove, connecting the arm portion of the rubber glove to connection opening 23, drilling holes in the finger portions of the rubber glove, inserting an air blower tube through the holes, and tightly fixing the tube to guide opening 41.

[0025] The connecting part 30 is flexible enough to be easily adjusted depending on the positioning of the storage bag part 20 and the back bag part 40. The connecting part 30 is also adjustable depending on the user's physique and the shape of the backpack 11. For example, by configuring the connecting part 30 as a bellows-like or elastic tube, the length can be adjusted freely as needed. Furthermore, the connecting part 30 is detachable from both the storage bag part 20 and the back bag part 40, making it easy to clean, replace, and maintain.

[0026] Next, the rear bag portion 40 and the ventilation openings 42 of the backpack cooling device 10 will be described. The arrows in Fig. 2 indicate the flow of air. The arrows in Fig. 2 are designated W1 to W3. W1 indicates the wind direction in which the blower 21 introduces air from the outside into the storage bag portion 20. W2 indicates the wind direction in which the air flows from the blower 21 through the air guide opening 31 into the rear bag portion 40. W3 indicates the wind direction in which the air is released to the outside from the ventilation openings 42 of the rear bag portion 40.

[0027] The back bag portion 40 is provided with ventilation holes 42 for releasing air introduced into the back bag portion 40 to the outside. Multiple ventilation holes 42 are provided on the surface facing the user's back, and are configured to efficiently release air supplied to the back bag portion 40 to the outside. The ventilation holes 42 are preferably arranged in a dispersed manner so that air is distributed across the entire back of the user. A suitable configuration for the ventilation holes 42 is six holes, as shown in FIG. 2 , provided at predetermined positions on the back bag portion 40. In the illustrated example, the ventilation holes 42 are located along the midline of the back and on both sides of the midline. The ventilation holes 42 may be shaped in any desired manner, such as circular, elliptical, or slit-like, and are formed with dimensions that do not impede airflow. If necessary, the ventilation holes 42 may be provided with a mesh or filter material to prevent the entry of foreign matter.

[0028] The ventilation holes 42 are positioned along the areas that come into contact with the user's back, and are formed to correspond to areas where cooling is particularly needed, such as around the shoulder blades, the spine, and the lower back. This allows air to be supplied to areas of the body that tend to retain heat, enabling effective body temperature regulation. This also makes it easier for air to be dispersed throughout the back, preventing uneven cooling in certain areas. The diameter of the ventilation hole 42 is, for example, in the range of 5 mm to 20 mm, making it possible to strike a balance between the air release performance and the prevention of foreign matter from entering.

[0029] A cushioning material may be placed on the surface of the back bag portion 40 facing the user's back to improve comfort while ensuring an airflow path. For example, by using a lightweight, flexible material such as polyethylene foam or urethane foam, a fit tailored to the user's physique and the shape of the back of the backpack 11 can be achieved. The cushioning material may be partially placed around the ventilation holes 42 or along the gaps therebetween, improving comfort when worn and the shape retention of the back bag portion 40 without impeding airflow.

[0030] As shown in Figure 2, air taken in by the blower 21 inside the storage bag 20 is guided to the back bag 40 through the connection part 30. This air flow is indicated by arrows W1 to W3 in Figure 2, and is configured so that air is introduced from the intake surface of the storage bag 20 and supplied to the inside of the back bag 40 via the connection part 30. The air sent into the inside of the back bag 40 passes through a predetermined path and is released from the ventilation opening 42. This allows air to circulate along the user's back 14, regulating body temperature.

[0031] The outer shape of the back bag section 40 may be designed to minimize interference with the user's body and not impair the appearance or wearing comfort of the backpack 11. For example, the back bag section 40 may have an angular shape as shown in Fig. 2, and the surface facing the body may be curved, thereby increasing the contact area with the body and reducing the feeling of pressure.

[0032] Next, a detailed description will be given of the storage bag portion 20. Fig. 3 is an overall view showing the connection state between the inside of the storage bag portion 20 and the back bag portion 40 according to one embodiment.

[0033] As shown in FIG. 3, the storage bag portion 20 has a connection opening 23 and a storage fixture 24. The connection opening 23 is an opening for accommodating the blower 21 connected to the connection portion 30. The storage fixture 24 is a member for connecting the backpack 11 and the storage bag portion 20. The storage fixture 24 is a rubber band for fixing the backpack 11. The storage bag portion 20 is connected to the backpack 11 by fixing the rubber band of the storage fixture 24 to a belt (not shown) or the like on the side of the backpack 11.

[0034] The back pouch portion 40 has back fasteners 43 for fastening to the back portion 12 of the backpack 11. As shown in FIG. 3, the back fasteners 43 in this embodiment are located in two places, one on the upper side and one on the lower side of the back pouch portion 40. The back fasteners 43 are rubber strings. The back pouch portion 40 is fastened to the backpack 11 by passing the back fasteners 43 through the backpack bands 13 (see FIG. 1). For example, the back fasteners 43 of the back pouch portion 40 may be configured to fasten by providing hook-and-loop fasteners on the surface of the back pouch portion 40 that contacts the backpack 11 and on the corresponding surface of the backpack 11, respectively, and crimping them together. The back fasteners 43 may also be configured to integrate a fastener provided on the back of the backpack 11 with a fastener provided at a corresponding position on the back pouch portion 40.

[0035] In order to prevent movement and contact between the blower 21 and the ice pack 22 during use, a partition 25 can be provided inside the storage bag 20. By providing the partition 25, the positional deviation of the blower 21 and the ice pack 22 is suppressed, and as a result, it becomes possible to efficiently guide the air that has passed through the ice pack 22 to the connection part 30. The storage bag 20 can also be provided with a storage pocket on the outside.

[0036] The storage bag 20 is a bag-shaped component that houses the blower 21 inside, and is attached to the side of the backpack 11. The storage bag 20 has a storage fixture 24 for fixing it to a corresponding location on the backpack 11, which allows it to be attached and detached to the backpack 11. The storage fixture 24 may be a rubber band that can be wrapped around and fixed to the backpack 11. The storage fixture 24 may also be configured to be attached using a detachable fixture such as a buckle, a hook-and-loop fastener, a snap button, or a hook.

[0037] Next, a description will be given of the internal configuration of the containing bag portion 20. FIG.

[0038] As shown in Fig. 4, ice packs 22 are placed inside storage bag 20 together with blower 21, and the air drawn in by blower 21 comes into contact with ice packs 22. Commercially available frozen ice packs, cooling gel materials, etc. are used as ice packs 22. The illustrated example shows a configuration in which two ice packs 22 are placed. This is merely an example, and any number of ice packs, one or more, can be placed in the internal space of storage bag 20 (one of the spaces separated by partition 26), depending on the cooling requirements.

[0039] The material used as the ice pack 22 can be replaced with a warming material such as a pocket warmer or heat pack. This allows the device to function as a warming device that supplies warm air to the user's back even in winter. In other words, the backpack cooling device 10 is versatile enough to be used for both cooling and heating.

[0040] Next, a description will be given of the air flow inside the containing bag portion 20. Fig. 5 is a cross-sectional view of the containing bag portion 20. The arrows in Fig. 5 indicate the air flow similar to the arrows W1 and W2 shown in Fig. 2.

[0041] As shown in FIG. 5 , air taken in from the outside first passes around the ice packs 22 inside the storage bag 20. The air then comes into contact with the ice packs 22 and is cooled. Specifically, the air introduced into the storage bag 20 flows along the cooling surface of the ice packs 22, thereby lowering its temperature. The cooled air is then sucked in by the blower 21 disposed inside the storage bag 20 and sent from the outlet of the blower 21 through the connection 30 to the back bag 40. By locating the ice packs 22 in the middle of the air flow path, the air supplied by the blower 21 is effectively cooled, providing a cooling sensation to the user's back. Note that the location and shape of the ice packs 22 may be designed so that the air sufficiently comes into contact with the ice packs 22 in this air flow. Conversely to the arrangement shown in FIG. 5 , the blower 21 may be located on the outside air intake side of the storage bag 20, and the ice packs 22 may be located behind the blower 21.

[0042] Next, one aspect of this embodiment and the effects of each aspect will be described. Note that this embodiment is not limited to the aspects described below, and may be realized by appropriately combining the above-mentioned parts. Furthermore, the effects described below are examples, and the effects of each aspect are not limited to those described below.

[0043] In one embodiment of the backpack cooling device, the device may include a back pouch portion interposed between the backpack and the back of the user wearing the backpack and equipped with a vent, a blower for supplying air to the back pouch portion, a storage pouch portion for accommodating the blower, and a connector for directing air from the storage pouch portion to the back pouch portion. This allows for a cooling device that can be attached to a backpack without relying on clothing, effectively reducing stuffiness and heat buildup on the backs of users who, for example, carry backpacks or other items while commuting to work or school. As a result, the backpack cooling device suppresses the user's body temperature from rising, contributing to the prevention of heatstroke, especially in high-temperature summer environments.

[0044] In one embodiment of the backpack cooling device of the present invention, the rear bag portion of the present invention may be fixed to the backpack, and an induction opening may be formed in the rear bag portion to take in the air supplied from the connecting portion, thereby enabling the cooling air supplied from the blower to be efficiently introduced into the rear bag portion.

[0045] In one embodiment of the backpack cooling device of the present invention, the storage bag of the present invention may be provided with a mesh member on the surface where the blower takes in air. This allows the blower to efficiently take in outside air, improving the ventilation performance of the entire device and preventing foreign objects from entering the air intake and hair from getting caught in the intake, thereby improving safety and comfort. In particular, even when using the backpack cooling device outdoors, when the wind direction changes and hair comes close to the blower, the mesh member prevents direct contact, allowing for safe wearing.

[0046] In one embodiment of the backpack cooling device of the present invention, the storage bag of the present invention may contain an ice pack near the blower, and air that has come into contact with the ice pack may be supplied from the storage bag to the back bag via the connection part. This allows the air supplied by the blower to come into contact with the ice pack and cool it. This reduces the temperature of the air sent to the back, achieving a high cooling effect.

[0047] In one embodiment of the present invention, the connector of the present invention is made of a flexible material, and the storage bag can be positioned on a different part of the backpack from the back bag, allowing the relative positions of the storage bag and back bag to be flexibly adjusted according to the user's physique and the shape of the backpack, improving the wearability and stability of the entire cooling device.

[0048] In one embodiment of the backpack cooling device of the present invention, the ventilation holes of the present invention may be arranged in multiple locations on the back of the backpack. This allows the cooling air to be evenly distributed across the entire back, achieving more efficient cooling over a wider area than a single large ventilation hole that only blows air locally. In particular, this allows the cool air to reach areas where body heat tends to build up, such as around the shoulder blades and spine, improving the overall cooling sensation and increasing the user's comfort. [Explanation of symbols]

[0049] 10 Back bag cooling device 11 Knapsack 12 Back of backpack 13 Backpack Band 14 User's back 20 Storage bag 21 Blower 22 Ice packs 23 Connection opening 24 Containment fixture 25 dividers 30 Connection 31 Air outlet 40 Back bag part 41 Induction opening 42 Ventilation hole 43 Rear fixture W1: The direction of the wind introduced from the outside into the storage bag by the blower W2: Air flow direction from the blower through the air outlet to the back bag W3: Direction of air blowing out from the ventilation hole in the back pocket

Claims

1. A backpack and A back bag portion that is interposed between the backpack and the back of a user who wears the backpack and has a ventilation hole; a blower for supplying air to the back bag portion; a storage bag portion that stores the blower; a connecting portion that guides air from the storage bag portion to the back bag portion. A cooling device for a backpack.

2. 2. The cooling device for a backpack according to claim 1, wherein the back pouch portion is fixed to the backpack, and an induction opening for taking in air supplied from the connecting portion is formed in the back pouch portion.

3. 2. The backpack cooling device according to claim 1, wherein a mesh member is provided on a surface of the storage bag through which the air blower takes in air.

4. A cooling device for a backpack as described in claim 3, wherein an ice pack is stored in the storage bag portion near the blower, and air that has come into contact with the ice pack is supplied from the storage bag portion to the back bag portion via the connection portion.

5. 2. The cooling device for a backpack according to claim 1, wherein the connecting portion is formed from a flexible material, and the storage bag portion is disposed at a position on the backpack different from the back bag portion.

6. The cooling device for a backpack according to claim 1, wherein the vent holes are arranged in a plurality of dispersed positions in the back pouch portion.

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