Luggage storage

Abstract

To provide a baggage storage device including shoulder straps for shoulder hanging attached to the baggage storage device and capable of significantly dispersing a load applied to a body even when a width thereof is narrow.SOLUTION: A baggage storage device comprises a baggage storage part and shoulder straps 1 for shoulder hanging. Each shoulder strap 1 includes a net-like structure 10 in which random loop-like continuous linear bodies made of a thermoplastic resin are fused at intersections of the continuous linear bodies, and a synthetic leather sheet 20 including a resin layer made of a synthetic resin, formed on a base material layer of a nonwoven fabric or a woven / knitted fabric. The synthetic leather sheet 20 is arranged on a body side of a user, of the baggage storage device, and the net-like structure 10 is further arranged on a bottom part of the baggage storage part.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a luggage carrying device having shoulder straps. [Background technology]

[0002] Baggage carriers, which are bag-shaped devices made of leather or cloth, are commonly used to carry luggage. Luggage carriers with shoulder straps are also widely used because they leave both hands free and make it easy to carry even heavy luggage.

[0003] When the weight of the luggage stored in the luggage storage device to which the shoulder straps are attached becomes heavy, the load is concentrated on the shoulder straps, causing the shoulder straps to dig into the body, which can cause pain or stiff shoulders.

[0004] Patent Document 1 describes a shoulder belt that includes a strip-shaped core material, a strip-shaped outer material provided on the front side of the core material, and a strip-shaped lining material provided on the back side of the core material, and at least one of the core material, the outer material, and the lining material has a plurality of bending-promoting structures that promote bending in at least the longitudinal direction of the core material among the longitudinal and lateral directions, and each bending-promoting structure extends continuously or intermittently in a direction perpendicular to or diagonally intersecting the longitudinal direction of the core material. Patent Document 2 describes a shoulder strap for a backpack that is made of an elastic core material and an outer fabric covering the core material, and is provided on the left and right sides, and is characterized in that the core material is provided with a height difference so that the outer side of the shoulder strap is thicker than the inner side at least in the part that contacts the body. Patent Document 3 describes a shoulder strap that includes a strip-shaped member having a longitudinal direction and a lateral direction, and is provided with detachable fasteners for hanging a bag or the like at both ends, and the strip-shaped member is made of a cloth-like material that has poor stretchability in the longitudinal direction and high stretchability in the lateral direction. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2014-104294 A [Patent Document 2] International Publication No. 2018 / 088056 [Patent Document 3] JP 2019-13640 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, the shoulder straps of the patent documents 1 to 3 cannot sufficiently distribute the load applied to the body from the shoulder straps, and may cause pain or the like when using the luggage carrier, leaving room for improvement.Furthermore, in recent years, luggage carriers with shoulder straps such as backpacks and shoulder bags are often used as business bags, and there is a demand for luggage carriers that not only sufficiently reduce the load applied to the body from the shoulder straps, but also enable the width of the shoulder straps to be narrowed and have a high design quality.

[0007] The present invention has been made in consideration of the above circumstances, and its object is to provide a luggage storage device equipped with shoulder straps that can sufficiently distribute the load applied to the body even if the shoulder straps are narrow. [Means for solving the problem]

[0008] The shoulder strap of the present invention, which has been able to solve the above problems, is a shoulder strap attached to a luggage carrying device, and is a continuous linear member in a random loop shape made of a thermoplastic resin. The luggage storage device has a mesh structure fused at the intersections of the mesh structure and a synthetic leather sheet having a resin layer made of synthetic resin formed on a base layer of nonwoven fabric or woven or knitted fabric, and the synthetic leather sheet is placed on the body side of the user of the luggage storage device.

[0009] The shoulder strap of the above invention has a user-side synthetic leather sheet located on the side of the luggage storage device that faces the user's body, and an outer-side synthetic leather sheet located on the opposite side of the luggage storage device to the user's body, and it is preferable that the mesh structure is arranged between the user-side synthetic leather sheet and the outer-side synthetic leather sheet.

[0010] In the shoulder strap of the above invention, the breathability of the mesh structure measured based on JIS L1913 (2010) 6.8.1 Frazier type method is preferably higher than the breathability of a synthetic leather sheet.

[0011] It is preferable that the shoulder strap of the above invention has a length adjustment part for adjusting the length, and that the mesh structure is not provided on the length adjustment part.

[0012] In the shoulder strap of the above invention, the maximum width is preferably from 1 to 5 times the thickness of the net-like structure.

[0013] In the shoulder strap of the above invention, the bending resistance of the synthetic leather sheet measured based on the JIS L1096 (1999) Gurley bending resilience test is preferably 0.1 mN or more and 1 mN or less.

[0014] In the shoulder strap of the above invention, the synthetic leather sheet preferably contains a polyurethane resin.

[0015] The luggage storage device of the present invention, which is able to solve the above-mentioned problems, is a luggage storage device comprising the shoulder strap of the present invention and a luggage storage section, wherein the luggage storage section has a body side member located on the side facing the user's body and an outer side member located on the opposite side to the user's body, and wherein the body side member has a mesh structure and the outer side member does not have a mesh structure.

[0016] In the luggage carrying device of the above invention, the body side member and the outer side member preferably have synthetic leather sheets.

[0017] The luggage carrying device of the present invention is preferably a backpack. Effect of the Invention

[0018] According to the present invention, the shoulder straps have a mesh structure and a synthetic leather sheet, and the synthetic leather sheet is positioned on the side of the user's body that is opposite to the luggage storage device. This makes it easier for the shoulder straps to conform to the user's body, making it possible to sufficiently distribute the load applied to the body by the shoulder straps, and making it less likely that pain will be felt in the parts of the body that come into contact with the shoulder straps, even if the width of the shoulder straps is narrowed. [Brief description of the drawings]

[0019] [Figure 1] 1 is a perspective view of a luggage storage device according to an embodiment of the present invention, as viewed from the user's body side; [Diagram 2] 1 is a perspective view of a luggage storage device according to an embodiment of the present invention, seen from the outside. [Diagram 3] FIG. 3 is a cross-sectional view of the shoulder strap shown in FIG. 1 along line III-III. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] The present invention will be described in more detail below based on the following embodiments, but the present invention is not limited to the following embodiments, and can be modified as long as it meets the purpose described above and below, and all of these modifications are included in the technical scope of the present invention. In addition, hatching and component symbols may be omitted in each drawing for convenience, but in such cases, the specification and other drawings should be referred to. In addition, the dimensions of various components in the drawings may differ from the actual dimensions because priority is given to helping understand the features of the present invention.

[0021] Fig. 1 shows a perspective view of a luggage carrier having shoulder straps attached thereto according to an embodiment of the present invention, as viewed from the side of a user's body, and Fig. 2 shows a perspective view of the luggage carrier as viewed from the outside. Note that the side of the user's body refers to the side that faces the user's body when the user holds the luggage carrier in use, and the outside refers to the side opposite the side of the user's body.

[0022] 1 and 2, shoulder straps 1 are attached to luggage carrying device 100. Shoulder straps 1 are used by a user to hang luggage carrying device 100 from the shoulder when using luggage carrying device 100. Note that luggage carrying device 100 may also be used by gripping shoulder straps 1 with the hands.

[0023] Fig. 3 is a cross-sectional view taken along line III-III of the shoulder strap 1 shown in Fig. 1, and is a cross-sectional view perpendicular to the length direction of the shoulder strap 1. As shown in Fig. 3, the shoulder strap 1 has a network structure 10 in which continuous linear bodies in a random loop shape made of a thermoplastic resin are fused at the intersections of the continuous linear bodies, and a synthetic leather sheet 20 in which a resin layer made of a synthetic resin is formed on a base layer of a nonwoven fabric or a woven or knitted fabric, and the synthetic leather sheet 20 is placed on the side of the luggage storage device 100 that faces the user's body. In Fig. 3, the lower side of the figure is the side of the luggage storage device 100 that faces the user's body, and the upper side of the figure is the outer side of the luggage storage device 100 that is opposite the side of the user's body.

[0024] Shoulder strap 1 has mesh structure 10 and synthetic leather sheet 20, and synthetic leather sheet 20 is arranged on the body side of the user of luggage storage device 100, so that the resilience of mesh structure 10 makes it easy to distribute the load applied to shoulder strap 1 over a wide area of ​​shoulder strap 1, and the flexibility of synthetic leather sheet 20 arranged on the body side of the user makes it easy for shoulder strap 1 to conform to the body of the user, making it possible to sufficiently distribute the load applied to the body from shoulder strap 1 when using luggage storage device 100. Also, because the load applied to shoulder strap 1 can be sufficiently distributed, the body is less likely to feel pain even if shoulder strap 1 is made narrow, making it possible to achieve both comfort in use and design of luggage storage device 100.

[0025] As shown in FIG. 3, the synthetic leather sheet 20 has a user-side synthetic leather sheet 21 located on the side of the luggage storage device 100 facing the user's body, and an outer-side synthetic leather sheet 22 located on the opposite side of the luggage storage device 100 from the user's body, and the mesh structure 10 is preferably disposed between the user-side synthetic leather sheet 21 and the outer-side synthetic leather sheet 22. By disposing the mesh structure 10 between the user-side synthetic leather sheet 21 and the outer-side synthetic leather sheet 22, the synthetic leather sheet 20 is present on both the user-side and outer-side of the mesh structure 10 facing the user's body, and the shoulder straps 1 are more likely to conform to the user's body when the luggage storage device 100 is in use, which makes it easier to distribute the load applied to the body. In addition, the mesh structure 10 is less visible when the shoulder straps 1 are viewed from the outer side, which enhances the design of the luggage storage device 100.

[0026] The network structure 10 has continuous linear bodies in a random loop shape made of thermoplastic resin fused at the intersections of the continuous linear bodies; in other words, it has a three-dimensional random loop joint structure in which linear resin made of thermoplastic resin is twisted to form random loops, and the individual loops are brought into contact with each other in a molten state and joined.

[0027] Examples of materials constituting the network structure 10 include polyester-based thermoplastic elastomers, polyolefin-based thermoplastic elastomers, polystyrene-based thermoplastic elastomers, polyurethane-based thermoplastic elastomers, polyamide-based thermoplastic elastomers, ethylene-vinyl acetate copolymers, etc. Among others, the material constituting the network structure 10 preferably contains a polyester-based thermoplastic elastomer. When the material constituting the network structure 10 contains a polyester-based thermoplastic elastomer, the resilience of the network structure 10 is increased, and the load applied to the shoulder strap 1 can be more easily dispersed.

[0028] The breathability of the mesh structure 10 measured based on JIS L1913 (2010) 6.8.1 Frazier type method is preferably higher than the breathability of the synthetic leather sheet 20. When the breathability of the mesh structure 10 is higher than that of the synthetic leather sheet 20, gas can easily flow inside the mesh structure 10, and the temperature of the mesh structure 10 inside the shoulder strap 1 is less likely to rise, causing discomfort to parts of the body in contact with the shoulder strap 1.

[0029] The synthetic leather sheet 20 has a resin layer made of synthetic resin formed on a base layer of nonwoven fabric or woven or knitted fabric. The fibers constituting the base layer of the synthetic leather sheet 20 are preferably synthetic fibers made of thermoplastic resin. Furthermore, natural fibers, regenerated fibers, semi-synthetic fibers, inorganic fibers, etc. may be mixed or blended as necessary as the constituent fibers.

[0030] The synthetic resin used for the fibers constituting the base layer of the synthetic leather sheet 20 is not particularly limited as long as it has fiber-forming ability, and examples of the synthetic resin that can be used include polyesters such as polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, and low-melting point polyesters that are mainly composed of these and further use isophthalic acid as a copolymerization component; polyolefins such as polypropylene, high-density polyethylene, medium-density polyethylene, low-density polyethylene, linear low-density polyethylene, and di- or terpolymers of propylene and other α-olefins; polyamides such as polyamide 6 and polyamide 66, or mixtures or copolymers of these.

[0031] The fibers constituting the base layer of the synthetic leather sheet 20 may be single-component or multi-component, such as core-sheath type, eccentric core-sheath type, parallel type, sea-island type, etc., and there is no particular restriction on the shape of the fiber cross section. In addition, various additives such as matting agents, pigments, antioxidants, UV absorbers, light stabilizers, crystal nucleating agents, flame retardants, and anti-mite agents can be added as necessary.

[0032] When a nonwoven fabric is used for the base layer of the synthetic leather sheet 20, the nonwoven fabric used for the base layer may be a short fiber nonwoven fabric, but is preferably a long fiber nonwoven fabric. By using a long fiber nonwoven fabric for the base layer of the synthetic leather sheet 20, the strength of the synthetic leather sheet 20 can be increased, and the durability of the shoulder straps 1 can be improved. Examples of the manufacturing method for the long fiber nonwoven fabric used for the base layer of the synthetic leather sheet 20 include the spunbond method and the meltblowing method. Examples of the manufacturing method for the short fiber nonwoven fabric used for the base layer of the synthetic leather sheet 20 include the carding method and the air laying method.

[0033] Woven fabrics or knitted fabrics can also be used for the base layer of the synthetic leather sheet 20. By using woven fabrics such as plain weave, twill weave, and satin weave for the base layer of the synthetic leather sheet 20, the synthetic leather sheet 20 can be made into a thin, lightweight fabric that is also strong and has excellent abrasion resistance. In addition, by using knitted fabrics such as circular knitting, warp knitting, tricot knitting, and raschel knitting for the base layer of the synthetic leather sheet 20, the synthetic leather sheet 20 can have both extensibility and a soft texture.

[0034] The resin layer of the synthetic leather sheet 20 is made of a synthetic resin. Examples of synthetic resins that form the resin layer include polyurethane resins, polyamide resins, polyacrylate resins, polyvinyl acetate resins, polyacrylonitrile resins, etc. These synthetic resins may be used alone or in combination of two or more kinds.

[0035] The synthetic leather sheet 20 preferably contains a polyurethane-based resin. In other words, the synthetic resin constituting the resin layer of the synthetic leather sheet 20 preferably contains a polyurethane-based resin. By containing a polyurethane-based resin in the synthetic leather sheet 20, the flexibility of the synthetic leather sheet 20 can be increased, and the shoulder straps 1 can be easily fitted to the body of the user of the luggage storage device 100, facilitating the distribution of the load.

[0036] The bending resistance of the synthetic leather sheet 20 measured based on the JIS L1096 (1999) Gurley bending resilience test is preferably 0.1 mN or more and 1 mN or less. By having the bending resistance of the synthetic leather sheet 20 based on the Gurley bending resilience test be 0.1 mN or more and 1 mN or less, the synthetic leather sheet 20 becomes flexible, and it becomes possible to form the shoulder strap 1 which easily deforms to fit the body when the luggage storage device 100 is in use.

[0037] The bending resistance of the synthetic leather sheet 20 measured based on the JIS L1096 (1999) Gurley bending resilience test is preferably 0.1 mN or more, more preferably 0.2 mN or more, and even more preferably 0.3 mN or more. By setting the lower limit of the bending resistance of the synthetic leather sheet 20 within the above range, the synthetic leather sheet 20 has an appropriate stiffness, and the strength of the shoulder strap 1 can be increased. In addition, the bending resistance of the synthetic leather sheet 20 measured based on the JIS L1096 (1999) Gurley bending resilience test is preferably 1 mN or less, more preferably 0.9 mN or less, and even more preferably 0.8 mN or less. By setting the upper limit of the bending resistance of the synthetic leather sheet 20 within the above range, the synthetic leather sheet 20 becomes sufficiently soft, and the shoulder strap 1 easily fits the body of the user of the luggage storage device 100.

[0038] As shown in Figures 1 and 2, shoulder strap 1 has length adjustment section 11 for adjusting its length, and it is preferable that mesh structure 10 is not provided in length adjustment section 11. Since shoulder strap 1 has length adjustment section 11, it is possible to adjust the length of shoulder strap 1, and shoulder strap 1 can be adjusted to an appropriate length when using luggage storage device 100, making it less likely for shoulder strap 1 to dig into the body of the user. Furthermore, since length adjustment section 11 does not have mesh structure 10, it is possible to prevent length adjustment section 11 from becoming too thick, making it easier to adjust the length of shoulder strap 1. The length of shoulder strap 1 refers to the length in the height direction of the user of luggage storage device 100.

[0039] As shown in FIG. 1, the length adjustment unit 11 may, for example, adjust the length of the belt-shaped member 11a by using a belt-shaped member 11a and an engaging member 11b, or adjust the length of the hook-and-loop fastener by engaging at least a part of a male hook-and-loop fastener with a female hook-and-loop fastener, thereby adjusting the overall length of the shoulder strap 1. The engaging member 11b may, for example, be a buckle, a hook, a hook-and-loop fastener, a button, a snap button, or a hook (backpack hook, adjuster). Of these, it is preferable that the length adjustment unit 11 has the belt-shaped member 11a and the engaging member 11b, and that the engaging member 11b is a hook. Since the length adjustment unit 11 has the hook that is the belt-shaped member 11a and the engaging member 11b, the length of the shoulder strap 1 can be easily adjusted, and the length of the shoulder strap 1 after adjustment can be easily maintained.

[0040] As shown in Figs. 1 to 3, it is preferable that the length adjustment unit 11 is disposed below the mesh structure 10 in the length direction of the shoulder strap 1. By disposing the length adjustment unit 11 below the mesh structure 10 of the shoulder strap 1, when the shoulder strap 1 is hung on the shoulder during use of the luggage storage device 100, the part of the shoulder strap 1 having the mesh structure 10 easily comes into contact with the body of the user, and the shoulder strap 1 can be easily adjusted to the desired length. This makes it easier to distribute the load on the user's body.

[0041] The maximum width of shoulder strap 1 is preferably 1 to 5 times the thickness of mesh structure 10. By setting the ratio of the maximum width of shoulder strap 1 to the thickness of mesh structure 10 within the above range, the load applied from shoulder strap 1 when luggage storage device 100 is in use can be sufficiently distributed, improving the comfort of luggage storage device 100 when used.

[0042] The maximum width of shoulder strap 1 is preferably 1 time or more, more preferably 1.5 times or more, and even more preferably 2 times or more, the thickness of net structure 10. By setting the lower limit of the ratio of the maximum width of shoulder strap 1 to the thickness of net structure 10 within the above range, the load applied to shoulder strap 1 during use of luggage storage device 100 is easily distributed across the entire width of shoulder strap 1. Furthermore, the maximum width of shoulder strap 1 is preferably 5 times or less, more preferably 4.5 times or less, and even more preferably 4 times or less, the thickness of net structure 10. By setting the upper limit of the ratio of the maximum width of shoulder strap 1 to the thickness of net structure 10 within the above range, the width of shoulder strap 1 is prevented from becoming excessively large, and the design of luggage storage device 100 can be improved while improving its comfort of use.

[0043] 1 and 2, luggage storage device 100 in an embodiment of the present invention includes shoulder straps 1 of the present invention and luggage storage section 50, and luggage storage section 50 includes body side member 51 located on the side facing the user's body and outer side member 52 located on the opposite side to the user's body, with body side member 51 including mesh structure 10 and outer side member 52 not including mesh structure 10. Since luggage storage device 100 includes shoulder straps 1 of the present invention, the shoulder straps 1 can adequately distribute the load applied to the user's body.

[0044] Furthermore, since the body side member 51 has the mesh structure 10, it is possible to disperse the force applied to the body side of the user of the luggage storage device 100, and even if the user's body rubs against the body side of the luggage storage device 100 when using the luggage storage device 100, the luggage storage device 100 is less likely to be scratched, making it possible to maintain the aesthetic appearance of the luggage storage device 100. Also, since the outer side member 52 does not have the mesh structure 10, it is possible to prevent the thickness of the luggage storage device 100 from the user's body side to the outer side from becoming excessively thick, making it less likely for the luggage storage device 100 to come into contact with others, and also making it possible to maintain the aesthetic appearance of the luggage storage device 100.

[0045] Although not shown, the mesh structure 10 is preferably disposed at the bottom of the luggage storage unit 50. By disposing the mesh structure 10 at the bottom of the luggage storage unit 50, when the luggage storage device 100 is placed on the floor, the ground, etc., the impact is less likely to be transmitted to the luggage storage unit 50, making it possible to prevent damage to the luggage stored in the luggage storage device 100.

[0046] The body side member 51 and the outer side member 52 preferably have a synthetic leather sheet 20. By having the body side member 51 and the outer side member 52 have the synthetic leather sheet 20, the design of the luggage storage device 100 can be improved.

[0047] In the body-side member 51, the synthetic leather sheet 20 is preferably disposed closer to the user's body than the mesh structure 10. In other words, in the luggage storage section 50, it is preferable that the mesh structure 10 is not exposed. Since the synthetic leather sheet 20 is disposed closer to the user's body than the mesh structure 10 in the body-side member 51, when the luggage storage device 100 is in use, the user's body comes into contact with the synthetic leather sheet 20 of the body-side member 51, and the synthetic leather sheet 20 deforms to fit the user's body. This makes it difficult for the user to feel pain even when the luggage storage section 50 comes into contact with his or her body, and improves the comfort of using the luggage storage device 100.

[0048] The luggage storage device 100 can store luggage in the luggage storage section 50 and can be carried over the shoulder. The luggage storage device 100 may be of any type, such as a backpack, school bag, shoulder bag, or pochette. Of these, it is preferable that the luggage storage device 100 is a backpack. Since the luggage storage device 100 is a backpack, it has two shoulder straps 1, one on each of the user's shoulders, so that even when heavy luggage is stored in the luggage storage section 50, the user is less likely to feel pain, and the luggage storage device 100 can be made comfortable.

[0049] As described above, the shoulder strap of the present invention is a shoulder strap attached to a luggage carrying device, and is characterized in that it comprises a mesh structure in which continuous linear bodies in a random loop shape made of thermoplastic resin are fused at their intersections, and a synthetic leather sheet in which a resin layer made of synthetic resin is formed on a base layer of a nonwoven fabric or woven or knitted fabric, the synthetic leather sheet being placed on the body side of the luggage carrying device. By configuring the shoulder strap in this way, the shoulder strap can easily fit the user's body, making it possible to sufficiently distribute the load applied to the body from the shoulder strap, and making it difficult to feel pain in the part of the body where the shoulder strap comes into contact with the shoulder strap, even if the width of the shoulder strap is narrowed. [Explanation of symbols]

[0050] 1: Shoulder straps 10: Net structure 11: Length adjustment section 11a: Belt-shaped member 11b: Engagement member 20: Synthetic leather seats 21: Synthetic leather seat for user 22: Synthetic leather seat on the outside 50: Luggage compartment 51: Body side member 52: Outer side member 100: Luggage storage equipment

Claims

1. A luggage storage device comprising a luggage storage section and a shoulder strap for carrying the luggage over the shoulder, The shoulder strap has a network structure in which continuous linear bodies in a random loop shape made of a thermoplastic resin are fused at intersections of the continuous linear bodies, and a synthetic leather sheet in which a resin layer made of a synthetic resin is formed on a base layer of a nonwoven fabric or a woven or knitted fabric, The maximum width of the shoulder strap is 1 to 4 times the thickness of the mesh structure of the shoulder strap, The material constituting the network structure contains a polyester-based thermoplastic elastomer, The synthetic leather sheet is disposed on the side of the user's body of the luggage storage device, The bending resistance of the synthetic leather sheet measured based on the JIS L1096 (1999) Gurley bending resilience test is 0.3 mN or more and 0.8 mN or less, The synthetic resin constituting the resin layer of the synthetic leather sheet includes a polyurethane resin, The mesh structure is further disposed at a bottom portion of the luggage storage section, A luggage storage device, characterized in that the mesh structure has a higher air permeability than the synthetic leather sheet as measured based on JIS L1913 (2010) 6.8.1 Frazier type method.

2. the shoulder strap has a user-side synthetic leather sheet located on the side of the user's body of the luggage storage device, and an outer-side synthetic leather sheet located on the opposite side of the user's body of the luggage storage device, 2. The luggage carrying device according to claim 1, wherein the mesh structure is disposed in the shoulder strap between the user-side synthetic leather sheet and the outer-side synthetic leather sheet.

3. The shoulder strap has a length adjustment portion for adjusting the length, 3. The luggage storage device according to claim 1, wherein the mesh structure is not provided in the length adjustment section.

4. The luggage storage section has a body side member located on a side of a user's body and an outer side member located on an opposite side to the user's body, The body side member has the mesh structure, 4. The luggage storage device according to claim 1, wherein the outer member does not have the mesh structure.

5. The luggage storage section has a body side member located on a side of a user's body and an outer side member located on an opposite side to the user's body, The luggage storage device according to any one of claims 1 to 4, wherein the body side member and the outer side member have a synthetic leather sheet having a resin layer made of a synthetic resin formed on a base layer of nonwoven fabric or woven or knitted fabric.

6. 6. The luggage carrier according to any one of claims 1 to 5, which is a backpack.

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