Backpack

Abstract

To provide a backpack which can easily stabilize a standing posture.SOLUTION: A backpack 10 includes a body 12, a pair of shoulder straps 14, a back pad, a fastener 18, and a hinge 20. The fastener 18 is configured to open and close the body 12 and is arranged at least on a front part 120 and a pair of side surface parts 124 of the body 12. The hinge 20 is provided on a back surface part 122 and connects an upper part body 130 above the fastener 18 and a lower part body 132 below the fastener 18 to bend. The back pad is divided into a lower side back pad and an upper side back pad by the hinge 20.SELECTED DRAWING: Figure 5

Description

[Technical field]

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

[0002] Patent Document 1 discloses a bag. This bag is a backpack that includes a space inside in which items can be stored, has shoulder straps on the back side, and can be carried by a user. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2022-22759 Summary of the Invention [Problem to be solved by the invention]

[0004] The bag in Patent Document 1 is provided with a support that maintains the bag body in an upright position. Therefore, if the support is not provided, it would be difficult to maintain the bag body in an upright position.

[0005] An object of the present invention is to provide a backpack that makes it easy to maintain a stable standing posture. [Means for solving the problem]

[0006] One aspect of the present invention is a backpack comprising a main body having an internal storage space, a pair of shoulder straps having one end sewn to the upper side of a back portion of the main body and the other end sewn to the lower side of the back portion, a back support pad provided on the back portion and positioned between the one end and the other end of the pair of shoulder straps, a fastener capable of opening and closing the main body, and a hinge flexibly connecting an upper main body above the fastener and a lower main body below the fastener, wherein the back support pad is divided into a lower back support pad and an upper back support pad by the hinge. Effect of the Invention

[0007] According to the present invention, when the upper body is bent relative to the lower body via the hinge, the center of gravity of the backpack can be positioned downward, thereby providing a backpack that is easy to stabilize in an upright position. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a front view showing a backpack. [Diagram 2] FIG. 2 is a rear view of the backpack. [Diagram 3] FIG. 3 is a side view showing the backpack. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. [Diagram 5] FIG. 5 is a diagram showing a state in which the fastener is opened and the upper body is bent relative to the lower body. [Figure 6] FIG. 6 is a side view of the backpack with the fasteners open and the upper body positioned adjacent to the side of the lower body. [Figure 7] FIG. 7 is a front view showing a modified backpack. [Figure 8] FIG. 8 is a rear view of the backpack with the shoulder straps omitted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] [Embodiment] 1 to 3, the backpack 10 is a bag that can be carried by a user. The backpack 10 includes a main body 12, a pair of shoulder straps 14, a back pad 16, a fastener 18, and a hinge 20.

[0010] The main body 12 has a front portion 120, a rear portion 122, a pair of side portions 124, an upper portion 126, and a lower portion 128. The front portion 120 corresponds to the front side of the main body 12, and the rear portion 122 corresponds to the rear side of the main body 12. One of the pair of side portions 124 corresponds to the left side of the main body 12, and the other of the pair of side portions 124 corresponds to the right side of the main body 12. The upper portion 126 corresponds to the upper side of the main body 12, and the lower portion 128 corresponds to the lower side of the main body 12.

[0011] The front portion 120 and the rear portion 122 face each other. The pair of side portions 124 face each other. The pair of side portions 124 are connected to the side ends of the front portion 120 and the rear portion 122. The upper portion 126 is connected to the upper ends of the front portion 120, the rear portion 122, and the pair of side portions 124. The lower portion 128 is connected to the lower ends of the front portion 120, the rear portion 122, and the pair of side portions 124.

[0012] The front portion 120, the pair of side portions 124, the upper portion 126, and the lower portion 128 have an outer sheet and an inner sheet. The outer sheet and the inner sheet are made of fabric made of recycled materials such as polyethylene terephthalate resin or nylon resin. As an example, a fabric made of a sheet of material sold as REPREVE (registered trademark) by Unifi, Inc., which is made by recycling waste materials discarded on the beach or in the ocean, can be used. The inner sheet is made of a cloth-like material having a lower rigidity than the outer sheet. An intermediate sheet may be interposed between the outer sheet and the inner sheet. The back portion 122 has one or more sheets having a lower rigidity than the outer sheet.

[0013] In this embodiment, the upper surface portion 126 is formed in a curved shape that becomes lower from the center portion in the left-right direction of the main body 12 toward both ends in the left-right direction of the main body 12, but is not limited to this.

[0014] The main body 12 has an accommodation space AS (see FIG. 5) therein. The accommodation space AS is surrounded by a front surface 120, a rear surface 122, a pair of side surfaces 124, an upper surface 126, and a lower surface 128.

[0015] The front portion 120 is provided with a pocket fastener 22. The pocket fastener 22 is used to open and close a front pocket (not shown) formed between the outer sheet of the front portion 120 and the inner sheet of the front portion 120.

[0016] A handle 24 is provided on the upper side of the back surface portion 122. The handle 24 is sewn together with the upper end portion of the back surface portion 122 and the side end portion of the top surface portion 126. The handle 24 is formed in a ring shape that protrudes above the top surface portion 126.

[0017] A side pocket 26 is formed in each of the pair of side portions 124. The side pocket 26 is formed by sewing a pocket sheet 28 to a side end portion of the front portion 120, a side end portion of the back portion 122, and a side end portion of the bottom portion 128.

[0018] An upper fastener 30 is provided on the upper surface portion 126. The upper fastener 30 is used to open and close the main body 12. The upper fastener 30 is disposed approximately in the center of the upper surface portion 126 in the front-rear direction, and extends along the left-right direction of the upper surface portion 126.

[0019] As shown in Fig. 2, the pair of shoulder belts 14 have the same configuration. The shoulder belt 14 has a cushion pad portion 140 and a string portion 142. The cushion pad portion 140 is located on the upper side of the shoulder belt 14. The string portion 142 is located on the lower side of the shoulder belt 14. The width dimension W1 of the cushion pad portion 140 is larger than the width dimension W2 of the string portion 142.

[0020] A ring 29 is attached to the surface of the cushion pad portion 140. The upper end of the cushion pad portion 140 is sewn together with the upper end of the back surface portion 122 and the side end of the top surface portion 126. The upper end of the cushion pad portion 140 may be sewn in an inclined state so that it becomes lower the further it is from the center in the left-right direction of the back surface portion 122. In this case, it is possible to reduce the slipping of the shoulder belt 14 from the user's shoulder, compared to when the upper end of the cushion pad portion 140 is sewn in a horizontal state.

[0021] The upper end of the string 142 is sewn to the lower end of the cushion pad 140. The lower end of the string 142 is sewn together with the lower portion of the side end of the back surface 122 and the lower portion of the side end of the side surface 124. The lower end of the string 142 is reinforced by the reinforcing member 32. The string 142 is provided with an adjuster 34 for adjusting the length of the shoulder belt 14.

[0022] The length dimension D1 between the pair of shoulder belts 14 may be smaller than the length dimension D2 between one of the pair of shoulder belts 14 and one of the side surfaces of the pair of side surface portions 124. Alternatively, the length dimension D1 between the pair of shoulder belts 14 may be smaller than the width dimension W1 of the cushion pad portion 140. When the length dimension D1 is smaller than the length dimension D2 or the width dimension W1, it is possible to reduce the slipping of the shoulder belt 14 from the user's shoulder.

[0023] The back support pad 16 is provided on the back surface portion 122. The back support pad 16 is located between one end (upper end) and the other end (lower end) of the pair of shoulder straps 14. The back support pad 16 is divided into a lower back support pad 160 and an upper back support pad 162 by a hinge 20. The lower back support pad 160 is larger than the upper back support pad 162.

[0024] 4, the lower back support pad 160 and the upper back support pad 162 each have a cushion material 164 and a mesh cover 166. The cushion material 164 is formed in a rigid plate shape. The rigidity of the cushion material 164 is greater than the rigidity of the main body 12. The mesh cover 166 covers the cushion material 164 and is sewn to the back portion 122.

[0025] 1 to 3, the fastener 18 has a front fastener portion 180, a first side fastener portion 182, a second side fastener portion 184, a first rear fastener portion 186, and a second rear fastener portion 188. The fastener 18 is used to open and close the main body 12.

[0026] The front fastener portion 180 is a fastener portion provided on the front portion 120. The front fastener portion 180 is located above the pocket fasteners 22 and below the hinges 20. The front fastener portion 180 extends along the left-right direction of the main body 12.

[0027] The first side fastener portion 182 is a fastener portion provided on one of the pair of side portions 124. The second side fastener portion 184 is a fastener portion provided on the other of the pair of side portions 124. The first side fastener portion 182 and the second side fastener portion 184 are located below the upper fastener 30. The fastener tape of the first side fastener portion 182 is sewn to the fastener tape of the upper fastener 30 located at one end of both ends in the extension direction of the upper fastener 30. The fastener tape of the second side fastener portion 184 is sewn to the fastener tape of the upper fastener 30 located at the other end of both ends in the extension direction of the upper fastener 30. The fastener tape is a sheet portion to which fastener elements (teeth) are sewn. As a result, one end of the upper fastener 30 is disposed near the first side surface fastener portion 182, and the other end of the upper fastener 30 is disposed near the second side surface fastener portion 184. The first side surface fastener portion 182 and the second side surface fastener portion 184 are inclined so as to become higher from the front portion 120 toward the rear portion 122.

[0028] The first back fastener portion 186 and the second back fastener portion 188 are fastener portions provided on the back portion 122. The first back fastener portion 186 is located at an end of the back portion 122 that is connected to one of the pair of side portions 124. The first back fastener portion 186 has a first end portion that corresponds to one of a pair of ends in the extension direction of the fastener 18. The first end portion is sewn to the hinge 20 and connected to the hinge 20. The second back fastener portion 188 is located at an end of the back portion 122 that is connected to the other of the pair of side portions 124. The second back fastener portion 188 has a second end portion that corresponds to the other of the pair of ends in the extension direction of the fastener 18. The second end portion is sewn to the hinge 20 and connected to the hinge 20.

[0029] It is noted that the first back fastener portion 186 and the second back fastener portion 188 may not be present. In this case, both ends of the fastener 18 in the extension direction may be separated from the hinge 20. Alternatively, both ends of the fastener 18 in the extension direction may be connected to the hinge 20. In this case, the hinge 20 extends to both ends of the back portion 122 that are connected to the pair of side portions 124.

[0030] 5, the hinge 20 connects the upper body 130 and the lower body 132 in a bendable manner. The upper body 130 is a portion of the body 12 that is above the fastener 18. The lower body 132 is a portion of the body 12 that is below the fastener 18. When the body 12 is opened via the fastener 18, the hinge 20 can bend the upper body 130 relative to the lower body 132.

[0031] An inner pocket 38 is provided on the inside of the back portion 122 of the lower body 132. The inner pocket 38 is formed by sewing an inner pocket sheet 40 together with a side end of the back portion 122 and side ends of the pair of side portions 124. The inner pocket 38 is capable of housing a tablet terminal.

[0032] As shown in Fig. 2, the hinge 20 is provided on the rear portion 122 and extends in the left-right direction of the rear portion 122. As shown in Fig. 4, the hinge 20 is formed, for example, in the shape of a cloth sheet. It is preferable that the thickness dimension T2 of the hinge 20 is smaller than the thickness dimension T1 of the cushion material 164. In this case, since the hinge 20 is thinner than the cushion material 164, the upper main body 130 becomes easier to bend relative to the lower main body 132.

[0033] It should be noted that the hinge 20 is not limited to the example shown in Fig. 2. It is sufficient for the hinge 20 to have flexibility and a rigidity less than that of the cushion material 164. Therefore, as long as the flexibility of the hinge 20 is ensured, the thickness dimension T2 of the hinge 20 may be greater than the thickness dimension T1 of the cushion material 164.

[0034] The hinge 20 is connected to the upper back pad 162 by piping. That is, the upper end of the hinge 20, the lower end of the mesh cover 166 of the upper back pad 162, and the lower end of the upper back part 122 divided into upper and lower parts are covered with the fabric cover 36 and sewn in this state. The fabric cover 36 is placed in the storage space AS.

[0035] The lower end of the hinge 20 is sewn in a state in which it is disposed between the upper end of the mesh cover 166 of the lower back pad 160 and the upper end of the lower back surface portion 122. The hinge 20 and the lower back pad 160 may be connected by piping.

[0036] As described above, in the backpack 10 of this embodiment, the upper body 130 and the lower body 132, which can be opened and closed by the fastener 18, are bendably connected by the hinge 20. The back pad 16 is divided into the lower back pad 160 and the upper back pad 162 by the hinge 20. With this configuration, as shown in FIG. 6, the upper body 130 bends so as to hang down to the side of the lower body 132 under its own weight without forcing the back pad 16 to bend. Since the hinge 20 is flexible, once the upper body 130 is bent so as to be positioned to the side of the lower body 132, the upper body 130 does not stand up and maintains the bent state.

[0037] Therefore, when the upper body 130 is bent relative to the lower body 132 via the hinge 20 with the main body 12 opened via the fastener 18, the upper body 130 can be positioned on the rear side of the lower body 132. This allows the center of gravity of the backpack 10 to be positioned downward. As a result, the upright posture can be stabilized.

[0038] When both ends of the fastener 18 in the extending direction are connected to the hinge 20, the upper body 130 has a larger range of bending relative to the lower body 132 compared to when the both ends are not connected to the hinge 20. Therefore, the hinge 20 makes it easier to maintain balance between the lower body 132 and the upper body 130 located on the back side of the lower body 132.

[0039] Furthermore, in the fastener 18 of this embodiment, the first side surface fastener portion 182 and the second side surface fastener portion 184 are inclined so as to become higher from the front portion 120 toward the rear portion 122. Therefore, the height difference between the front fastener portion 180 and the hinge 20 can be set relatively large. As a result, the volume of the upper body 130 can be made close to the volume of the lower body 132 while ensuring a storage area in the lower body 132 for a relatively large item such as a tablet terminal.

[0040] [Variations] Modifications of the above embodiment will be described below. Note that descriptions that overlap with the above embodiment will be omitted as appropriate. Elements already described in the above embodiment will be designated by the same reference numerals as in the above embodiment unless otherwise specified.

[0041] (Variation 1) 4, the back portion 122 and the hinge 20 are separate members and connected by sewing, but the back portion 122 and the hinge 20 may be the same member. In this case, the mesh covers 166 of the lower backrest pad 160 and the mesh covers 166 of the upper backrest pad 162 are sewn to the back portion 122 in a state in which they are vertically spaced apart from each other. The hinge 20 is a portion of the back portion 122 that is located between the mesh covers 166.

[0042] In this way, when the rear portion 122 and the hinge 20 are made of the same material, the number of parts can be reduced compared to when the rear portion 122 and the hinge 20 are made of separate materials.

[0043] (Variation 2) The first side fastener portion 182 and the second side fastener portion 184 of the fastener 18 do not have to be inclined. In this case, the height of the front fastener portion 180 and the height of the hinge 20 are the same.

[0044] (Variation 3) 7, the peripheral edge 42 of the lower surface of the lower surface portion 128 may protrude beyond the lower surface. For example, the lower surface portion 128 is connected to the front surface portion 120, the back surface portion 122, the pair of side surface portions 124, and the pocket sheet 28 by piping. That is, the lower end portion of the front surface portion 120 and the lower end portion of the back surface portion 122 are covered with a cover and sewn together in this state. Also, the lower end portions of the pair of side surface portions 124 and the lower end portion of the pocket sheet 28 are covered with a cover and sewn together in this state. In this case, the cover becomes the peripheral edge 42.

[0045] (Variation 4) The above-described multiple modified examples may be combined as appropriate within a range that does not cause inconsistency.

[0046] [Note] The invention that can be understood from the above embodiment and modifications will be described below.

[0047] <Appendix 1> a pair of shoulder straps (14) having one end sewn to an upper side of a back portion (122) of the main body and the other end sewn to a lower side of the back portion; a back support pad (16) provided on the back portion and located between the one end and the other end of the pair of shoulder straps; a fastener (18) for opening and closing the main body, the fastener being disposed on at least a front portion (120) of the main body facing the back portion and a pair of side portions (124) of the main body connected to the back portion and the front portion; and a hinge (20) for flexibly connecting an upper main body (130) above the fastener and a lower main body (132) below the fastener, the back support pad being divided by the hinge into a lower back support pad (160) and an upper back support pad (162).

[0048] With this, when the upper body is bent relative to the lower body via the hinges while the body is opened via the fastener, the upper body can be positioned on the rear side of the lower body, and the center of gravity of the backpack can be positioned downward, resulting in a stable upright posture.

[0049] <Appendix 2> In the backpack described in Appendix 1, the back pad has a rigid, plate-shaped cushioning material (164) and a mesh cover (166) that covers the cushioning material and is sewn to the back portion, and the hinge may be thinner than the cushioning material.

[0050] In this case, it becomes easier to bend the upper body relative to the lower body.

[0051] <Appendix 3> In the backpack described in Appendix 1, the hinge may be part of the back section.

[0052] In this case, the number of parts can be reduced compared to when the rear portion and the hinge are separate members.

[0053] <Appendix 4> In the backpack described in Supplementary Note 1, a pair of ends of the fastener in the extension direction may be connected to the hinge.

[0054] In this case, the upper body can bend with respect to the lower body over a larger range than when the pair of ends of the fastener in the extending direction are not connected to the hinge, making it easier to maintain a balance between the lower body and the upper body located on the rear side of the lower body.

[0055] <Appendix 5> In the backpack described in Supplementary Note 1, the fasteners provided on the pair of side portions may be inclined so as to become higher from the front portion toward the back portion.

[0056] In this case, the height difference between the fastener portion provided on the front portion and the hinge can be set relatively large, so that the volume of the upper main body can be made close to that of the lower main body while still providing storage space in the lower main body for a relatively large item such as a tablet terminal.

[0057] <Appendix 6> In the backpack described in appendix 1, an inner pocket (38) capable of accommodating a tablet terminal may be formed on the inside of the back part of the lower main body.

[0058] In this case, the tablet terminal can be protected from other items stored in the storage space of the main body without having to move the tablet terminal within the storage space.

[0059] <Appendix 7> In the backpack described in Appendix 1, the length dimension (D1) between the pair of shoulder straps may be smaller than the length dimension (D2) between one of the pair of shoulder straps and one side of the pair of side portions.

[0060] In this way, the shoulder strap can be prevented from slipping off the user's shoulders.

[0061] <Appendix 8> A backpack as described in Appendix 1, wherein an upper fastener (30) is provided on an upper surface portion (126) of the upper body, and fastener tapes of the fastener provided on the pair of side portions may be sewn to fastener tapes of the upper fastener located at both ends in the extension direction of the upper fastener.

[0062] In this way, the main body can be opened via the upper fastener without having to open the main body via the fastener.

[0063] The present invention is not limited to the above disclosure, and various configurations can be adopted without departing from the gist of the present invention. [Explanation of symbols]

[0064] 10…Backpack 12…Main body 14…Carrying belt 16…Backrest pad 18…Fastener 20…Hinge 38…Inner pocket 120…Front 122...Back part 124...Side part 126...Top part 128...Bottom part 130...Upper body 132...Lower body 160: Lower back pad 162: Upper back pad 164…Cushioning material 166…Mesh cover 180...Front fastener portion 182...First side fastener portion 184... second side fastener portion 186... first back fastener portion 188…Second back fastener

Claims

1. A main body having an internal storage space; a pair of shoulder straps, one end of which is sewn to the upper side of the back part of the main body and the other end of which is sewn to the lower side of the back part; A back pad provided on the back portion and positioned between the one end and the other end of the pair of shoulder belts; a fastener disposed at least on a front portion of the main body facing the rear portion and on a pair of side portions of the main body connected to the rear portion and the front portion, the fastener being capable of opening and closing the main body; a hinge that flexibly connects an upper body above the fastener and a lower body below the fastener; A backpack comprising: The backpack, wherein the backrest pad is divided into a lower backrest pad and an upper backrest pad by the hinge.

2. 2. The backpack of claim 1, The back pad includes a rigid plate-shaped cushion material and a mesh cover that covers the cushion material and is sewn to the back portion, The hinge is thinner than the cushioning material.

3. 2. The backpack of claim 1, The hinge is part of the back section.

4. 2. The backpack of claim 1, A pair of ends of the fastener in the extension direction are connected to the hinge.

5. 2. The backpack of claim 1, A backpack, wherein the fasteners provided on the pair of side portions are inclined so as to become higher from the front portion toward the rear portion.

6. 2. The backpack of claim 1, The backpack has an inner pocket formed on the inside of the rear portion of the lower body, the inner pocket being capable of accommodating a tablet terminal.

7. 2. The backpack of claim 1, A backpack, wherein a length dimension between the pair of shoulder belts is smaller than a length dimension between one of the pair of shoulder belts and one of the side surfaces of the pair of side portions.

8. 2. The backpack of claim 1, An upper fastener is provided on the upper surface of the upper body, A backpack, wherein the fastener tapes of the fasteners provided on the pair of side portions are sewn to the fastener tapes of the upper fastener located at both ends in the extension direction of the upper fastener.

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