backpack

The backpack design stabilizes heavy items through a waist and shoulder belt system with fasteners, addressing vertical movement issues and enhancing comfort and appearance.

JP7727882B2Active Publication Date: 2025-08-22池田 真実
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Patent Information

Application Number
JP2021067659
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-04-13
Publication Date
2025-08-22
Estimated Expiration
2041-04-13

AI Technical Summary

Technical Problem

Existing backpack designs fail to effectively stabilize heavy items during physical activities, leading to significant vertical movement and discomfort, especially when combining heavy and light items, due to inadequate adhesion and support structures.

Method used

A backpack design featuring an inner storage section with a waist belt and shoulder belts, an outer storage section with removable belts, and fasteners like hook-and-loop fasteners to secure heavy items tightly against the user's waist, combined with a divisible outer section for easy maintenance and luxurious design.

Benefits of technology

The design effectively suppresses the vertical movement of heavy items, reducing strain on the shoulders, legs, and waist during exercise or commuting, while allowing for easy cleaning and maintaining a luxurious appearance.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To solve a following problem that in a conventional knapsack, a waist belt is installed outside a storage part, adhesion between a user and a load in the storage part, especially a heavy load, is not enough, shaking of the load during motion cannot be suppressed completely, and a vibration load is given to the shoulders and legs and the lower back.SOLUTION: A knapsack includes: an inner storage part 10a of a bag body; a waist belt 21 provided on a surface opposite a surface facing a user's back near a waist position of the user; an outer storage part 10b having an opening / closing part provided so that the inner storage part 10a can be fitted and taken out; one or more pairs of left and right upper shoulder belts 22a; one or more pairs of left and right lower shoulder belts 22b; and a plurality of insertion holes 31 provided so that at least one or more belts can be taken out of the outer storage part. In this structure, the belts are inserted into insertion holes, a storage object can be firmly fastened and fixed to the waist part of the user, and vertical movements of the storage object while moving can be suppressed.SELECTED DRAWING: Figure 1
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Description

[Technical Field]

[0001] The present invention relates to a backpack for carrying luggage or the like on the back. [Background technology]

[0002] Traditionally, backpacks used for commuting, as well as traveling and mountain climbing, have a waist belt that tightens around the user's waist when worn, ensuring the backpack fits snugly against the user's waist. This structure reduces the swinging of the contents when walking, running, or performing other physical activities, reducing the vibration load on the shoulders, legs, and hips. Some backpacks also allow the combination of multiple storage compartments for added convenience.

[0003] For example, the backpack disclosed in Patent Document 1 has a structure in which the backpack body, i.e., the entire storage compartment, is secured to the user's waist by a waist belt via a stretchable elastic body. When in use, items stored in the backpack body are held between the elastic body and the user's back by the waist belt.

[0004] Furthermore, the backpack disclosed in Patent Document 2 has a structure that separates the storage body from a back support plate equipped with shoulder straps, and holds a bag-like body in between to store other items, etc., and is structured to combine multiple storage sections so that the contents can be stored separately. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-28027 [Patent Document 2] Japanese Patent Application Laid-Open No. 2000-210122 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the backpack in Patent Document 1 has a structure in which the entire backpack is secured to the user's waist by a waist belt via a stretchable elastic body, and if, as is the case these days, heavy items such as a computer, books or documents are stored inside the backpack, along with light, cushioned items such as a change of clothes, the heavy items will move up and down violently inside the storage area while running, making it very difficult to exercise.

[0007] Furthermore, the backpack in Patent Document 2 has a structure that separates the storage body from a back support plate equipped with shoulder straps, and holds a bag-like body for storing other items between them, and although it has a structure that combines multiple storage sections, the presence of the back support plate in particular means that it is not adaptable to exercise, and there is not enough adhesion between the user and the section that stores heavy objects, so that when running, for example, the heavy objects move up and down violently inside the storage section, making it very difficult to exercise. [Means for solving the problem]

[0008] The backpack of the present invention is a backpack for storing items to be stored and carried on the back, and comprises an inner storage section of a bag body for storing the stored item, a waist belt located near the waist of the user of the inner storage section and on the surface opposite to the side facing the user's back, an outer storage section that is bag-shaped to encompass the inner storage section and has an opening and closing section that allows the inner storage section to be removed, one or more pairs of upper shoulder belts located near the shoulders of the user in the inner storage section or the outer storage section, one or more pairs of lower shoulder belts located below the waist belt of the inner storage section or below the outer storage section, and a plurality of insertion holes that allow at least one of the upper shoulder belts, lower shoulder belts and waist belts to be removed from the outer storage section when the inner storage section is stored in the outer storage section.

[0009] The backpack of the present invention is characterized in that the outer storage section can be divided into a back support section that faces the back of the user and an outer peripheral section other than the back support section.

[0010] Furthermore, the backpack of the present invention is configured to have a fastener installed inside the inner storage section that can fasten stored items. [Effects of the Invention]

[0011] The backpack of the present invention as described in claim 1 is a backpack for storing and carrying stored items, and comprises an inner storage section of a bag body for storing the stored items, a waist belt provided on the surface of the inner storage section facing the user's back and located near the waist position of the user, an outer storage section that is bag-shaped to encompass the inner storage section and has an opening and closing part that allows the inner storage section to be removed, and one or more pairs of upper shoulder belts provided on the left and right sides near the shoulder position of the user of the outer storage section, and an opening and closing part provided on the inner storage section below the waist belt of the inner storage section or near the lower part of the outer storage section. The carrier has a structure including at least one pair of left and right lower shoulder belts provided in the external storage section and a plurality of insertion holes that allow at least one of the upper shoulder belt, the lower shoulder belt, and the waist belt to be removed from the external storage section when the internal storage section is stored in the external storage section. By inserting the belt provided in the internal storage section through the insertion holes in the external storage section and fastening it to the user's waist, heavy objects in the internal storage section can be tightly clamped between the user's waist and the belt, thereby strongly suppressing the vertical movement of the heavy objects when walking or running. At the same time, since relatively light, bulky objects can be stored in the connected external storage section, the vertical movement of the heavy objects can be suppressed even when running while carrying a mixture of heavy and bulky loads, thereby reducing the load on the shoulders, legs, and waist when running.

[0012] Furthermore, the backpack of the present invention described in claim 2 is the backpack described in claim 1 in which the outer storage section can be divided into a backrest section that faces the user's back and an outer peripheral section other than the backrest section, making it easy to selectively and partially wash the outer storage section, especially the backrest section, which is particularly prone to perspiration.

[0013] Furthermore, the backpack of the present invention as described in claim 2 can be washed by separating only the back portion, so that an easily washable material can be used for the back portion, and a material that looks good but is difficult to wash, such as leather, can be used for the outer periphery, which does not attract much sweat, making it possible to create a design that is both usable for exercise and has a luxurious feel.

[0014] Furthermore, the backpack of the present invention as described in claim 3 is the backpack of claims 1 and 2, in which a fixing device capable of fixing stored items is installed inside the inner storage compartment.By installing a fixing device such as a hook-and-loop fastener, button or magnet inside the inner storage compartment, it is possible to strongly prevent heavy items from moving up and down inside the inner storage compartment, and it is possible to further strongly prevent heavy items from moving up and down. [Brief explanation of the drawings]

[0015] [Figure 1] 1A and 1B are perspective views of the inner storage section and the outer storage section of a backpack according to a first embodiment of the present invention, seen from the storage side in a separated state before assembly, with FIG. 1A showing the outer storage section and FIG. 1B showing the inner storage section. [Figure 2] 1 is a perspective view of the backpack of the first embodiment of the present invention, seen from the storage side, with the inner storage section brought close to the outer storage section for assembly. FIG. [Figure 3] 1 is a perspective view of the backpack of the first embodiment of the present invention, seen from the storage side, with the inner storage section assembled to the outer storage section. FIG. [Figure 4] 4(a) and 4(b) are perspective views from the backrest side and the storage side of the exterior of the backpack of the first embodiment of the present invention, with the inner and outer storage sections assembled and the storage opening of the outer storage section closed, with FIG. 4(a) showing the exterior from the backrest side and FIG. 4(b) showing the exterior from the storage side. [Figure 5] 5A and 5B are perspective views of the inner and outer storage sections of a backpack according to a second embodiment of the present invention, seen from the storage side in a separated state before assembly, with FIG. 5A showing the outer storage section and FIG. 5B showing the inner storage section. [Figure 6]6(a) and 6(b) are perspective views from the backrest side and the storage side of the exterior of a backpack according to a second embodiment of the present invention, with the inner and outer storage sections assembled and the storage opening of the outer storage section closed, with FIG. 6(a) showing the exterior from the backrest side and FIG. 6(b) showing the exterior from the storage side. [Figure 7] 7A and 7B are perspective views from the storage side of a backpack according to a third embodiment of the present invention, in which the inner storage section and the outer storage section are separated and not yet assembled, with FIG. 7A showing the outer storage section and FIG. 7B showing the inner storage section. [Figure 8] 8(a) and 8(b) are perspective views from the storage side of the inner storage section, the back support section of the outer storage section, and the outer peripheral section of the outer storage section of a backpack according to a fourth embodiment of the present invention in a separated state before assembly, in which FIG. 8(a) shows the outer storage section: back support section, FIG. 8(b) shows the outer storage section: outer peripheral section, and FIG. 8(c) shows the inner storage section. [Figure 9] FIG. 10 is a perspective view of the inner storage section of the backpack according to the fifth embodiment of the present invention, from the storage side, in which a hook-and-loop fastener is installed as a fastener inside the inner storage section. [Figure 10] FIG. 10 is an oblique view from the storage side of a backpack according to a fifth embodiment of the present invention, in which a hook-and-loop fastener is installed as a fastener inside the internal storage section, with a plate-shaped heavy object stored in the internal storage section. BEST MODE FOR CARRYING OUT THE INVENTION

[0016] A first embodiment of the backpack of the present invention will be described below with reference to FIGS. 1 to 4. FIG. 1 is a perspective view from the storage side of the backpack of the first embodiment of the present invention, with the inner and outer storage sections separated and prior to assembly, with FIG. 1(a) showing the outer storage section and FIG. 1(b) showing the inner storage section. FIG. 2 is a perspective view from the storage side of the backpack of the first embodiment of the present invention, with the inner storage section brought close to the outer storage section for assembly. FIG. 3 is a perspective view from the storage side of the backpack of the first embodiment of the present invention, with the inner storage section assembled to the outer storage section. FIG. 4 is a perspective view from the backrest side and the storage side of the backpack of the first embodiment of the present invention, with the inner and outer storage sections assembled and the storage opening of the outer storage section closed, with FIG. 4(a) showing the appearance from the backrest side and FIG. 4(b) showing the appearance from the storage side.

[0017] As shown in Figure 1, the backpack 10 of the present invention is composed of an inner storage section 10a, which is a bag body that mainly contains heavy objects, and an outer storage section 10b, which is a bag body that contains the inner storage section and has an opening and closing section that allows the inner storage section to be removed, and is used to contain relatively lightweight, bulky luggage.

[0018] The internal storage section has a waist belt 21 that contacts the waist and is provided on the surface opposite to the user's back near the user's waist, and a pair of left and right shoulder belts (upper shoulder belt 22a, lower shoulder belt 22b) that contact the shoulders, and the external storage section has insertion holes 31 formed on the back surface 32 or side surface 33 that face the user's back so that the waist belt and shoulder belts in the internal storage section can be removed from the external storage section. The insertion holes are located symmetrically on the left and right sides of the back support section, at the upper side near the user's shoulders, at the lower side near the center near the abdomen, and at the lower side near the waist, so that the respective belts fit naturally to the user's body.

[0019] When assembling the outer storage section and the inner storage section, as shown in Figs. 2 and 3, the waist belt and shoulder belt are inserted through the insertion holes 31 to connect the upper shoulder belt 22a and the lower shoulder belt 22b.

[0020] Figure 4 is a perspective view of the exterior of the backpack 10 with the inner storage section attached to the outer storage section, seen from the back and outer periphery. The backpack 10 as a whole looks no different from a regular backpack, and has a basic structure that can be given a variety of designs.

[0021] In use, heavy items are stored in the inner storage section 10a, and relatively light items are stored in the outer storage section 10b and in the storage space outside the inner storage section, and the user puts their arms through the shoulder belts (hereinafter, the pair of upper and lower shoulder belts is referred to as the shoulder belts) and then firmly fastens the waist belt 21 around the abdomen. This allows the user to selectively clamp the heavy items in the inner storage section tightly against the user's back with the waist belt, thereby suppressing the up and down movement of the heavy items regardless of whether there is any luggage stored at the same time.

[0022] A second embodiment of the backpack of the present invention will be described below with reference to Figures 5 and 6. Figure 5 is a perspective view from the storage side of the backpack of the second embodiment of the present invention, with the inner and outer storage sections separated and before assembly, where Figure 5(a) shows the outer storage section and Figure 5(b) shows the inner storage section. Figure 6 is a perspective view from the backrest side and the storage side of the exterior of the backpack of the second embodiment of the present invention, with the inner and outer storage sections assembled and the storage opening of the outer storage section closed, where Figure 6(a) shows the appearance from the backrest side and Figure 6(b) shows the appearance from the storage side.

[0023] In this invention, the waist belt is the most effective in preventing the vertical movement of heavy objects. Furthermore, passing too many belts through the insertion holes of the external storage compartment can be cumbersome and increase the risk of small items falling out. Therefore, it is possible to have one end of the shoulder belt not be a through-hole, and instead have the lower shoulder belt positioned near the bottom of the external storage compartment, i.e., below the waist belt, so that only the upper shoulder belt and waist belt are through-holes, and the waist belt is primarily used to firmly secure the shoulder belt to the waist.

[0024] As shown in Figure 5, the backpack 10 of the present invention is composed of an inner storage section 10a, which is a bag body that mainly contains heavy items, and an outer storage section 10b, which is a bag body that contains the inner storage section and has an opening and closing section that allows the inner storage section to be removed, and is used to contain relatively lightweight, bulky luggage.

[0025] The internal storage section has a waist belt 21 that contacts the waist and is provided on the surface opposite to the user's back near the user's waist, and a pair of upper shoulder belts 22a that contact the shoulders, while the external storage section has lower shoulder belts 22b and insertion holes 31 formed on the back surface 32 or side surface 33 that faces the user's back so that the waist belt and shoulder belts in the internal storage section can be removed from the external storage section. The insertion holes are located symmetrically on the left and right sides of the back support section, at the upper side near the user's shoulders and at the lower side near the center near the abdomen, so that the respective belts fit naturally to the user's body.

[0026] When assembling the outer storage section and the inner storage section, the waist belt and the upper shoulder belt are inserted through the insertion holes 31, and the upper shoulder belt 22a and the lower shoulder belt 22b are connected together, as in the first embodiment.

[0027] Figure 6 is a perspective view of the exterior of the backpack 10 with the inner storage section attached to the outer storage section, seen from the back and outer periphery. The backpack 10 as a whole looks no different from a regular backpack, and has a basic structure that can be customized with a variety of designs.

[0028] In use, heavy items are stored in the inner storage section 10a, and relatively light items are stored in the outer storage section 10b and in the storage space outside the inner storage section. After the user places their arms through the shoulder straps and wears the bag on their back, the waist belt 21 is tightly fastened around the abdomen. As with the first embodiment, this allows the user to selectively clamp a heavy item in the inner storage section tightly against the user's back with the waist belt, thereby suppressing vertical movement of the heavy item regardless of whether or not there is any other luggage stored at the same time.

[0029] In the second embodiment, the effect of suppressing the up and down movement of stored heavy objects when running or exercising is not significantly reduced compared to the first embodiment, and the hassle of passing many belts through the insertion holes in the external storage section is reduced, and the drawback of small items easily falling out of the insertion holes is also reduced.

[0030] A third embodiment of a backpack of the present invention will now be described with reference to Fig. 7. Fig. 7 is a perspective view from the storage side of the backpack of the third embodiment of the present invention, showing the inner and outer storage sections in a separated state before assembly, with Fig. 7(a) showing the outer storage section and Fig. 7(b) showing the inner storage section.

[0031] In this invention, the waist belt is the most effective in suppressing the vertical movement of heavy objects. Furthermore, passing too many belts through the insertion holes in the external storage compartment can be cumbersome and increases the risk of small items falling out. Therefore, the shoulder belts can be installed in the external storage compartment without being inserted, and only the waist belt can be inserted, with the waist belt being used as the insert and firmly secured to the waist.

[0032] As shown in Figure 7, the backpack 10 of the present invention is composed of an inner storage section 10a, which is a bag body that mainly contains heavy items, and an outer storage section 10b, which is a bag body that contains the inner storage section and has an opening and closing section that allows the inner storage section to be removed, and is used to contain relatively lightweight, bulky luggage.

[0033] The internal storage section has a waist belt 21 that is located near the user's waist and is provided on the surface opposite to the surface facing the user's back, and the external storage section has a pair of upper and lower shoulder belts 22a and 22b, and insertion holes 31 provided on the back surface 32 or side surface 33 facing the user's back so that the waist belt in the internal storage section can be removed from the external storage section. The insertion holes are located symmetrically on the left and right sides of the back support section, near the center and lower towards the user's abdomen, so that the waist belt fits naturally to the user's body.

[0034] To assemble the outer and inner storage compartments, the waist belt is inserted through the insertion hole 31 and the upper shoulder belt 22a and lower shoulder belt 22b are connected. In the third embodiment, the overall appearance of the backpack is no different from that of a normal backpack, and the basic structure allows for various designs to be added.

[0035] In use, heavy items are stored in the inner storage section 10a, and relatively light items are stored in the outer storage section 10b and in the storage space outside the inner storage section. After the user places their arms through the shoulder straps and wears the bag on their back, the waist belt 21 is tightly fastened around the abdomen. As in the first and second embodiments, this allows the user to selectively clamp a heavy item in the inner storage section tightly against the user's back with the waist belt, thereby suppressing vertical movement of the heavy item regardless of whether or not there is any other luggage stored at the same time.

[0036] In the third embodiment, the effect of suppressing the up and down movement of stored heavy objects when running or exercising is not significantly reduced compared to the first and second embodiments, and the hassle of passing many belts through the insertion holes in the external storage section is reduced, and the drawback of small items easily falling out of the insertion holes is also reduced.

[0037] In the third embodiment, it is desirable to partially join the inner and outer storage sections so that the position of the inner storage section within the outer storage section is stable during use, making it easier to put in and take out items. For example, as shown in Figure 7, by installing snap buttons 34a, 34b, or hook-and-loop fasteners or buttons near the storage opening and removably joining the inner and outer storage sections, it becomes easier to put in and take out items and to separate them for maintenance.

[0038] In either embodiment, by providing a pocket-structured storage space in the outer storage section so as not to interfere with storage in the inner storage section, it is possible to increase ease of storage and also improve the drawback of small stored items falling out through the insertion hole.

[0039] In any of the embodiments, the waist belt and shoulder belt can be equipped with one-touch fastening attachments or parts that allow for length adjustment so that they grip the waist from the left and right and the shoulders from above and below, thereby increasing convenience. Also, by attaching the shoulder belts so that they cross each other or by adding parts that connect in front of the chest or abdomen, it is possible to more tightly restrain the stored items and further suppress their vertical movement.

[0040] A fourth embodiment of the backpack of the present invention will now be described with reference to Fig. 8. Fig. 8 is a perspective view from the storage side of the backpack of the fourth embodiment of the present invention, showing the inner storage section, the back support section of the outer storage section, and the outer periphery of the outer storage section in a separated state before assembly, in which Fig. 8(a) shows the outer storage section: back support section, Fig. 8(b) shows the outer storage section: outer periphery section, and Fig. 8(c) shows the inner storage section.

[0041] Generally, the back of a backpack is prone to perspiration, but especially when exercising with a load on the back, the user tends to sweat, and the outer storage compartment, especially the back, is particularly susceptible to perspiration. On the other hand, the outer storage compartment, especially the outer periphery, dominates the appearance and is extremely important from a fashion perspective. Therefore, by providing an open zipper, buttons, hook-and-loop fasteners, etc. at the boundary between the back and outer periphery of the outer storage compartment and making it divisible, it becomes easier to care for it, such as by washing parts of it.

[0042] 8 is a perspective view showing a structure in which an open-type zipper is provided at the boundary between the back support portion 10b1 and the outer periphery portion 10b2 of the outer storage portion, making it possible to separate the back support portion and the outer periphery portion. In particular, by making it possible to separate and wash only the back support portion, it is possible to use a material that is difficult to wash, such as leather, for the outer periphery, which does not easily attract sweat, and to create a design that is comfortable to exercise in yet has a luxurious feel.

[0043] A fifth embodiment of the backpack of the present invention will now be described with reference to Figures 9 and 10. Figure 9 is a perspective view of the inner storage compartment of the backpack of the fifth embodiment of the present invention, from the storage side, when hook-and-loop fasteners are installed as fasteners in the inner storage compartment. Figure 10 is a perspective view of the inner storage compartment of the backpack of the fifth embodiment of the present invention, from the storage side, when hook-and-loop fasteners are installed as fasteners in the inner storage compartment, with a plate-shaped heavy object stored in the inner storage compartment.

[0044] Generally, even if a backpack is firmly secured to the body, heavy objects tend to move up and down slightly due to the vertical movement of the backpack while running, due to the luggage stored therein and gaps within the backpack, which often results in insufficient reduction of the burden on the shoulders, legs, and lower back. In particular, if there are gaps above and below the heavy object, it is likely to slip and move up and down within the storage compartment, even if the backpack is securely fastened to the waist. Therefore, in the backpack of the present invention, by installing one or more pairs of fasteners such as hook-and-loop fasteners, buttons, or magnets on the inside of the internal storage compartment, the vertical movement of the heavy object within the internal storage compartment can be strongly suppressed, and by combining this with the clamping of the backpack by a waist belt, the vertical movement of the heavy object can be further suppressed.

[0045] With the structure shown in Figure 9, the closed hook-and-loop fastener can strongly prevent heavy objects from moving up and down inside the internal storage compartment, so by firmly fastening the bag to the waist with a waist belt, it is possible to further strongly prevent heavy objects from moving up and down during exercise or running.

[0046] In other words, with the backpack of the present invention, even in today's lifestyle where commute time is used for exercise, the user can wear clothes that are easy to exercise in when commuting, store heavy items such as a computer or tablet, or files and books in the internal storage section and selectively secure them firmly around the user's waist, and store a suit or work clothes to change into at work in the external storage section.Even if all of these items are placed in the backpack and the user runs to work, the burden on the shoulders, legs and waist is significantly reduced and damage to the stored items is prevented.

[0047] In addition, the backpack of the present invention has a structure that allows the back of the outer storage compartment, which is prone to perspiration, to be separated, allowing for washing of the back alone, ensuring comfortable and hygienic use over a long period of time. Furthermore, by using leather, which is difficult to wash, for the outer periphery of the outer storage compartment, which determines the appearance, it is possible to create a design that gives the exterior a luxurious feel while maintaining convenience for use during exercise.

[0048] In addition, in the backpack of the present invention, by installing fasteners such as hook-and-loop fasteners, buttons or magnets on the inside of the internal storage compartment, it is possible to further prevent heavy objects from moving up and down inside the internal storage compartment, thereby more strongly preventing the up and down movement of heavy objects.

[0049] These structures prevent stored items from moving up and down due to slipping between the gaps at the top and bottom of the storage compartment, especially when storing heavy, slippery items such as laptops, tablets, books, and paper files. This allows for a more stable fixation to the user's waist, further reducing the strain on the shoulders and legs when exercising or running with a heavy load on the back, and preventing damage to stored items. [Explanation of symbols]

[0050] 10. Backpack 10a Internal storage area 10b External storage area 10b1 Back support of divided external storage compartment 10b2 Outer periphery of the divided outer storage unit 21 Waist belt 22a Upper shoulder belt 22b Lower shoulder belt 23 Fixtures in the inner storage compartment 24 Heavy plate-shaped objects stored in the internal storage area 31 Insertion hole 32 External storage area (backrest) 33 External storage section (side) 34a External and internal storage unit connection fastener (snap button, female side) 34b External and internal storage unit connection fastener (male snap button)

Claims

1. In a backpack that stores items inside and is carried on the back, The backpack is an inner storage section of the bag body for storing mainly heavy items among the stored items; an outer storage section that is bag-shaped and includes the inner storage section, has an opening / closing section that allows the inner storage section to be removed, and stores relatively light, bulky luggage inside the outer storage section and in a storage space outside the inner storage section; The inner storage section includes: a waist belt provided in the vicinity of the user's waist on a surface opposite to the surface facing the user's back and in contact with the user's waist; and one or more pairs of left and right shoulder belts provided near the shoulders of the user, The external storage section has insertion holes on the back surface or side surface facing the back of the user when the internal storage section is stored, through which the waist belt and the shoulder belt of the internal storage section can be taken out of the external storage section, The backpack is characterized by being positioned symmetrically at least on the upper side near the shoulders of the user and on the lower side near the center near the abdomen.

2. 2. The backpack according to claim 1, wherein the outer storage section can be divided into a back support section facing the back of the user and an outer peripheral section other than the back support section.

3. 3. The backpack according to claim 1, wherein a fastener capable of fastening stored items is provided inside the inner storage section.

Citation Information

Patent Citations

  • Rucksack

    JP1997299144A

  • Knapsack

    JP2000210122A

  • Hip-bag-type rucksack

    JP2002028027A

  • Small article holder

    JP2011030772A

  • Backpack and waist bag support system

    JP2014534888A