Bag for backpack and backpack

Abstract

To provide a bag body that can be attached to an existing bag body and can house a temperature adjusting member, and a backpack to which the bag body is attached. [Solution] The bag body 10 for a backpack comprises a bag-shaped bag body 20 that is removably attached to the bag body 101 of the backpack 100 so as to abut against the backrest portion 102 that faces the user of the backpack 100, and a temperature regulating member 30 housed in the bag body 20.

Description

[Technical field]

[0001] The present invention relates to a backpack bag and a backpack. [Background technology]

[0002] Knapsacks are suitable for carrying heavy loads and are easy to carry, and are widely used in daily life. However, when the backpack is worn on the back, the backrest comes into contact with the user's body, and when used for long periods of time or in hot and humid summer environments, the area where the backrest comes into contact with the body becomes sweaty and uncomfortable.

[0003] For this reason, for example, Patent Document 1 proposes providing a pocket for storing a cooling material on the back of a backpack. By storing a cooling material in the pocket when using the backpack, the user's back is cooled and prevented from becoming stuffy. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Registered Utility Model No. 3007844 Summary of the Invention [Problem to be solved by the invention]

[0005] On the other hand, backpacks that users already have or that are commercially available do not have pockets for storing such cooling material, and therefore cannot reduce the discomfort felt by the user.

[0006] The present invention has been made in consideration of the above-mentioned problems, and its objective is to provide a bag body that can be attached to an existing bag body and is capable of housing a temperature regulating component, and a backpack with the bag body attached. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention includes the subject matter described in the following paragraphs.

[0008] Item 1: A bag-shaped bag body that is detachably attached to the bag body of the backpack so as to abut against the back part facing the user of the backpack; A bag body for a backpack comprising a temperature regulating member housed in the bag body.

[0009] Item 2: The temperature adjustment member is Two rectangular films are stacked on top of each other and welded together at the edges. and a conditioning agent contained in the interior space between the films, Item 2. The backpack bag according to item 1, wherein the internal space is divided into at least three or more sections.

[0010] Item 3: A backpack bag according to item 1 or 2, wherein the bag body is made of a layered fabric of a first fabric having cushioning properties and a second fabric having insulating properties that is disposed on the inside of the first fabric.

[0011] Item 4: The bag body is rectangular in plan view, and is formed into a bag shape by overlapping an outer fabric and a lining fabric, Viewed from the side, the lining is longer than the outer fabric. Item 4. The backpack bag according to any one of items 1 to 3, wherein an opening and closing means for inserting and removing a temperature regulating member is provided so as to overlap a portion of the lining fabric protruding from the outer fabric.

[0012] Item 5: The backpack bag bag according to any one of items 1 to 4, further comprising an attachment means for attaching the bag body to a backpack.

[0013] Item 6: The backpack bag according to item 5, wherein the attachment means includes a cord, a cord stopper, and a pin hook.

[0014] Clause 7: A bag body having a storage body having a back part facing a user when worn, and a pair of shoulder straps attached to the storage body; 7. A backpack bag comprising: the backpack bag body according to any one of claims 1 to 6, which is detachably attached to the shoulder strap of the bag body so as to abut against the back support portion. Effect of the Invention

[0015] According to the present invention, it is possible to provide a bag body that can be attached to an existing bag body, and a backpack with the bag body attached. [Brief description of the drawings]

[0016] [Figure 1] 1 is a front view showing a schematic overall configuration of a backpack bag according to an embodiment of the present invention; [Diagram 2] FIG. [Diagram 3] FIG. 2 is a side view of the backpack pouch. [Figure 4] FIG. [Diagram 5] FIG. 2 is a cross-sectional view taken along line AA in FIG. [Figure 6] FIG. [Figure 7] 13(A) and 13(B) are explanatory diagrams showing the procedure for attaching the backpack pouch to the bag body. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] (Overall composition) An embodiment of the present invention will be described with reference to the drawings. Figures 1 to 5 show a backpack bag 10 according to one embodiment of the present invention. The backpack bag 10 comprises a bag body 20, a temperature adjustment member 30 housed in the bag body 20, and an attachment means 40 for attaching the bag body 20 to a backpack 100.

[0018] In the following description, in the plan view of backpack bag bag 10 shown in Fig. 1, the side where opening 24 is provided is referred to as the upper side, the side opposite the upper side is referred to as the lower side, and the direction perpendicular to the up-down direction is referred to as the left-right direction. In the description of backpack bag bag 10, the plan view is a view of backpack bag bag 10 as seen from above when placed on a horizontal surface.

[0019] (Bag body 20) The bag body 20 is detachably attached to the bag body 101 so as to abut against the backrest 102 of the backpack 100 facing the user. The bag body 20 is a rectangular bag in plan view, and an opening 24 is formed on the upper side by overlapping the outer cloth 21A and the inner cloth 21B and sewing the side edges together. In this embodiment, the length of the bag body 20 in the vertical direction is set slightly longer than the length in the horizontal direction, and the length of the bag body 20 in the vertical direction is set to 21.5 cm and the length in the horizontal direction is set to 20 cm. The size and shape of the bag body 20 are not limited to these, and it is sufficient that the size and shape do not protrude from the backrest 102 when the backpack bag 10 is attached to the bag body 101 of the backpack 100. The bag body 20 may be any shape, such as a square, a circle, an ellipse, a polygon, etc.

[0020] As shown in FIG. 5, the front cloth 21A and the back cloth 21B are fabrics in which a first fabric 22 having cushioning properties and a second fabric 23 having a heat insulating function are overlapped on the inside of the first fabric 22. The first fabric 22 is composed of, for example, a sheet-like cushioning material 22a and a sheet-like mesh fabric 22b attached to the outer surface of the cushioning material 22a. The sheet-like shape means that the length in the vertical or horizontal direction in a plan view is 10 times or more the length in the thickness direction. The cushioning material 22a is made of a foam of any material, such as polyurethane foam or polyethylene foam.

[0021] The mesh fabric 22b is made of, for example, polyester, but may be made of any material. The mesh fabric 22b is attached to the entire surface of one side of the cushion material 22a by an adhesive or other adhesive means. The cushion material 22a and the mesh fabric 22b are breathable, and the mesh fabric 22b is more breathable than the cushion material 22a, so by arranging the mesh fabric 22b on the outside, it is possible to prevent the back from becoming stuffy.

[0022] In this embodiment, the cushion material 22a has a thickness of 1.5 mm, and the mesh fabric 22b has a thickness of 0.5 mm, but the thicknesses of the cushion material 22a and the mesh fabric 22b are not limited to this.

[0023] The second fabric 23 provided on the inside of the first fabric 22 (the side of the cushioning material 22a) is selected from any material having a heat insulating function, such as aluminum or polyester vapor-deposited with aluminum. The second fabric 23 is located on the inside of the first fabric 22 and covers the entire inside surface of the first fabric 22. The second fabric 23 is located on the inside of the first fabric 22 by sewing the side edges of the bag body 20, and does not have to be fixed to the entire inside surface of the first fabric 22, and the second fabric 23 may move relative to the first fabric 22.

[0024] As shown in Figs. 3 and 5, in a cross section viewed from a side or in a vertical direction, the lining 21B is set to be longer in the vertical direction than the front cloth 21A. When the lower end edge 21a of the front cloth 21A and the lower end edge 21c of the lining 21B are aligned in the vertical direction, the upper end edge 21d of the lining 21B is located a certain length (for example, 1 cm) above the upper end edge 21b of the front cloth 21A. An opening 24 is formed between the upper end edge 21d of the lining 21B and the upper end edge 21b of the front cloth 21A. An opening means is provided in the opening 24, and in this embodiment, the opening means is a zipper 25 extending over the entire length of the opening 24 in the horizontal direction. The zipper 25 is provided so as to overlap a portion of the lining 21B protruding from the front cloth 21A, and the temperature adjustment member 30 is inserted and removed through the opening of the zipper 25. The opening and closing means is not limited to the fastener 25, and any means such as a hook-and-loop fastener, a button, a hook, etc. may be used as long as the temperature adjustment member 30 can be inserted and removed and opened and closed.

[0025] (Mounting means 40) The bag body 20 is provided with two attachment means 40. Each attachment means 40 includes an annular attachment piece 41, a cord 42, a cord stopper 43, and a pin hook 44. The attachment piece 41 is formed by folding a strip of tape along the length direction and sewing the end of the tape to the upper edge of the bag body 20 to form a ring shape. In this embodiment, the attachment piece 41 is sewn between the upper edge 21d of the lining cloth 21B and the fastener 25. The attachment piece 41 is attached at a position symmetrical with respect to the center in the left-right direction of the bag body 20. The cord 42 is passed through the annular internal space of the attachment piece 41. The annular internal space may be large enough to allow the cord 42, the cord stopper 43, and the pin hook 44 to pass through, or may be large enough to allow the cord 42 to pass through but not the cord stopper 43 or the pin hook 44 to pass through.

[0026] The cord 42 is made of a single elastic cord with its ends connected together, or two elastic cords with their ends connected together, but is not limited to elastic cords and may be any elastic cord-like material. The cord 42 is movable relative to the attachment piece 41.

[0027] A cord stopper 43 is inserted through the cord 42 on one side of the attachment piece 41. The cord stopper 43 has a known shape and is movable along the cord 42. The cord stopper 43 has a spring and can stop the cord 42 at any position by the spring.

[0028] A pin hook 44 is provided on the other side of the attachment piece 41 of the cord 42. The pin hook 44 has a base end 44a having a through hole 44b, and a hook portion 44c rotatably connected to the base end 44a. One rubber cord of the cord 42 passes through the through hole 44b of the base end 44a, and the pin hook 44 is movably attached to the cord 42. The hook portion 44c is an annular body, and a part of the annular body opens when a force is applied to the hook portion 44c. The pin hook 44 is not limited to the shape shown in the figure, and any known shape such as a metal or resin lobster clasp or clip hook can be used as long as it can be engaged with the cord 42.

[0029] 3 shows only one mounting means 40. In FIG 5, the mounting means 40 other than the annular mounting piece 41 are omitted.

[0030] (Temperature control member 30) In this embodiment, the temperature adjustment member 30 is a cold insulation member. As shown in Fig. 4, the temperature adjustment member 30 has a rectangular shape in a plan view, is slightly smaller than the bag body 20, and is set to a size that can be contained in the bag body 20.

[0031] As shown in FIG. 4 and FIG. 5, the temperature adjustment member 30 includes two films 31A and 31B made of synthetic resin arranged one on top of the other, and a cooling agent 32 (adjustment agent). The two films 31A and 31B are welded together at their peripheries. Furthermore, the two films 31A and 31B are welded together by two welded parts 33 along the vertical direction. Each of the welded parts 33 extends over the entire length in the horizontal direction. The two welded parts 33 divide the space between the two films 31A and 31B into three chambers 34A to 34C. In this embodiment, the two welded parts 33 are provided at positions such that the three chambers 34A to 34C have the same vertical length. Each of the chambers 34A to 34C is sealed, and the cooling agent 32 does not move between the different chambers 34A to 34C. The same amount of cooling agent 32 is stored in each of the chambers 34A to 34C. In this embodiment, the width of the welded portion 33 is set to about 5 mm. Welding can be performed by any method, such as thermocompression (heat sealing), ultrasonic welding, or laser welding.

[0032] The temperature regulating member 30 is housed in the bag body 20 such that the extending direction of the welded portion 33 is aligned with the left-right direction of the bag body 20, as shown in FIG.

[0033] The number of chambers 34A to 34C is not limited, and any number of chambers may be provided. Also, the welded portion 33 may be provided over the entire length in the vertical direction, and the internal space may be divided into a plurality of rows and a plurality of columns.

[0034] The films 31A and 31B are made of known materials such as polyethylene (PE), polypropylene (PP), nylon (polyamide), and polyester (PET). The ice pack 32 is made of known materials such as water, gel-like substances such as polyethylene glycol and carboxymethyl cellulose, and phase change materials (PCM). A phase change material is a material that repeats phase changes between solid and liquid at a specific temperature, and when used as the ice pack 32, a material having a melting point of, for example, 28 degrees is used, and a material containing, for example, paraffin wax and fatty acids such as stearic acid is used. Note that the films 31A and 31B and the ice pack 32 are not limited to the above materials.

[0035] The temperature adjustment member 30 may be a heat-insulating member that releases heat. The heat-insulating member has the same structure as the cold-insulating member, but has a heat-insulating agent instead of the cold-insulating agent 32. As the heat-insulating agent, known materials such as heat-generating materials such as paraffin wax, hand warmers, water (hot water), etc. can be used.

[0036] (100 backpacks) As shown in FIG. 6, backpack 100 comprises a bag body 101 and backpack pouch 10 of the embodiment shown in FIGS.

[0037] The bag body 101 comprises a storage section main body 103 having a back support section 102 that faces the user when worn, and a pair of shoulder straps 104A, 104B attached to the storage section main body 103. A known bag body 101 is used.

[0038] The backpack bag body 10 is detachably attached to a pair of shoulder straps 104A, 104B of the bag body 101. The cord 42 of each attachment means 40 is wound around the upper portion of the shoulder straps 104A, 104B, and the pin hook 44 is engaged with the cord 42 located on one side of the attachment piece 41, thereby maintaining the state in which the cord 42 is wound around the shoulder straps 104A, 104B. The length of the wound cord 42 is adjusted by the cord stopper 43 so that the cord 42 is less likely to move relative to the shoulder straps 104A, 104B.

[0039] 6, the bag body 20 of the backpack bag body 10 is placed on the backrest part 102 so that the outer fabric 21A faces outward (the side opposite the backrest part 102). This makes the fastener 25 face outward, making it easier to insert and remove the temperature adjustment member 30. Note that the backpack bag body 10 may be placed on the backrest part 102 so that the lining 21B faces outward, in which case the fastener 25 does not appear on the outside, which looks good.

[0040] (Attachment of backpack bag body 10) The backpack bag body 10 is positioned so that the outer fabric 21A faces outward (the side opposite the back support 102). Next, as shown in Fig. 7(A), the cord 42 of one of the attachment means 40 is wound around the upper portion of one of the shoulder straps 104A, 104B, and the pin hook 44 located on the other side of the attachment piece 41 is engaged with the cord 42 located on one side of the attachment piece 41. At this time, the pin hook 44 is engaged with the cord 42 at a position closer to the attachment piece 41 than the cord stopper 43. As a result, the cord 42 is wound around the shoulder straps 104A, 104B.

[0041] Next, as shown in FIG. 7B, the cord stopper 43 is moved closer to the attachment piece 41. The pin hook 44 is also pushed by the cord stopper 43 and moves closer to the attachment piece 41. As a result, the cord 42 is wound around the upper part of the shoulder straps 104A, 104B, and the cord 42 is less likely to shift position on the shoulder straps 104A, 104B. The other attachment means 40 is similarly wound around the upper part of one of the shoulder straps 104A, 104B. As a result, the backpack bag body 10 is attached to the bag body 101 so as to abut against the back support part 102 of the storage part main body 103. At this time, the up-down direction of the backpack bag body 10 is along a direction including the upper side and the bottom side (lower side) of the storage part main body 103 when the backpack bag 100 is carried by the wearer (when the backpack bag 100 is used).

[0042] (summary) According to the above configuration, the backpack bag body 10 can be removably attached to an existing bag body 101, so that the temperature adjustment member 30 can be provided in the backrest portion 102 even for a bag body 101 that does not have a pocket for storing a cooling material or the like, thereby reducing discomfort to the body (back) when using the backpack bag 100.

[0043] The internal space of temperature adjustment member 30 is divided into a plurality of sealed chambers 34A-34C, and each of chambers 34A-34C contains ice pack 32 (adjustment agent), so that the coolant can be prevented from moving in a particular direction. In particular, in this embodiment, chambers 34A-34C are provided along the vertical direction, so that it is possible to prevent ice pack 32 from moving downwards when backpack 100 is in use, thereby preventing only the lower side from being cooled.

[0044] The outer side of the bag body 20 is made of a first fabric 22 having cushioning properties, which can reduce discomfort when the backpack bag 10 touches the user's back. The first fabric 22 is also made of mesh fabric 22b, which can ensure breathability and reduce stuffiness of the wearer. The inner side of the bag body 20 is made of a second fabric 23 having a heat insulating function, which can delay the temperature adjustment member 30 from returning to normal temperature due to the influence of the outside air.

[0045] Since an opening / closing means 25 such as a zipper 25 is provided on the outer cloth 21A of the bag body 20, by attaching the backpack bag body 10 to the bag body 101 with the outer cloth 21A side of the bag body 20 facing outward, the zipper 25 can be easily opened and closed, and the temperature adjustment member 30 can be easily taken in and out.

[0046] By attaching backpack bag pouch 10 of this embodiment to bag body 101, backpack bag 100 can be made with temperature adjustment member 30 provided on backpack portion 102. Because backpack bag pouch 10 is detachable, backpack bag 100 can be used with backpack bag pouch 10 removed when backpack bag pouch 10 is not needed.

[0047] The above describes one embodiment of the present invention. However, the present invention is not limited to the above embodiment, and various modifications are possible without departing from the spirit of the present invention. The dimensions, materials, shapes, relative arrangements, etc. of the components described as embodiments or shown in the drawings are not intended to limit the scope of the present invention thereto, but are merely illustrative examples. Expressions indicating that things such as "in a certain direction", "along a certain direction", "the same", "identical", "equal", and "homogeneous" are in an equal state represent not only a strictly equal state, but also a state in which there are tolerances or differences to the extent that the same function can be obtained. Expressions representing triangular, square, or circular shapes represent not only shapes in a geometrically strict sense, but also shapes including uneven portions, chamfered portions, etc. within the range where the same effect can be obtained. The expression "comprising" or "having" one component is not an exclusive expression excluding the existence of other components.

Explanation of Signs

[0048] 10 Bag body for backpack 20 Bag main body 21A Outer fabric 21B Inner fabric 22 First fabric 22a Cushioning material 22b Mesh fabric 23 Second fabric 24 Opening 25 Fastener (opening / closing means) 30 Temperature adjustment member 31A, 31B Films 32 Cold storage agent 33 Welded part 34A~34C Three chambers 40 Attachment means 41 Attachment piece 42 Cord 43 Cord stopper 44 Pin hook 100 Backpack 101 Backpack body 102 Backrest part 103 Main body of storage part A pair of shoulder belts 104A and 104B

Claims

1. a bag-shaped bag body that is detachably attached to the bag body of the backpack so as to abut against a back portion that faces a user of the backpack; A bag body for a backpack comprising a temperature regulating member housed in the bag body.

2. The temperature adjustment member is Two rectangular films arranged one on top of the other and welded together at their edges; and a conditioning agent contained in the interior space between the films, 2. The backpack bag of claim 1, wherein the interior space is divided into at least three sections.

3. The bag body for a backpack as described in claim 1, wherein the bag body is made of a fabric in which a first fabric having cushioning properties and a second fabric having insulating properties are layered on top of each other and are disposed inside the first fabric.

4. The bag body is rectangular in plan view and is formed into a bag shape by overlapping an outer fabric and a lining fabric, Viewed from the side, the lining is longer than the outer fabric.

2. The backpack bag according to claim 1, further comprising an opening and closing means for inserting and removing the temperature regulating member so as to overlap the portion of the lining fabric protruding from the outer fabric.

5. 2. The backpack bag of claim 1 further comprising attachment means for attaching said bag body to a backpack.

6. 6. The backpack bag of claim 5, wherein said attachment means includes a cord, a cord stopper, and a pin hook.

7. A bag body having a storage body having a back portion facing a user when worn, and a pair of shoulder straps attached to the storage body; A backpack bag comprising: a backpack bag pouch according to any one of claims 1 to 6, which is detachably attached to the shoulder strap of the bag body so as to abut against the back support portion.

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