Back pad and pad member

Abstract

To provide a back pad that can be adjusted to a size suitable for the back of a backpack. [Solution] The back pad 1 includes a back pad main body 3 and fixing members 5A and 5B. The back pad main body is the main unit member that constitutes the back pad. The back pad main body includes pad members 10A to 10F and a connecting member 20. The back pad main body is formed by connecting multiple pad members detachably with the connecting members. The back pad main body is formed by connecting two or more pad members. The number of back pad main bodies connected can be changed appropriately depending on the size of the back rest BR of the backpack B.

Description

[Technical Field]

[0001] The present invention relates to a back pad and a pad member. [Background technology]

[0002] For example, Patent Document 1 discloses a pad body that covers almost the entire backrest of a backpack, is formed in a mesh pattern, and has a reinforced edge frame only around the outer periphery; the side that comes into contact with the backrest of the backpack is the back side of the pad, and the side that comes into contact with the person's back is the front side of the pad; on the back side of the pad, a number of needle posts, or ventilation spacing support posts, are formed orthogonally, like the needles on a porcupine's back, starting from the boundaries where each mesh joins with adjacent meshes, or in other words the mesh frame; the pad body's edge frame has attachment means consisting of elastic attachment members and clips in a total of four places, facing the top and bottom bases of each of the left and right backpack shoulder straps, and the pad is characterized in that it is fixed to the bases of the shoulder straps with the clips. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-23674 Summary of the Invention [Problem to be solved by the invention]

[0004] The object of the present invention is to provide a back pad that can be adjusted to a size suitable for the back of a backpack. [Means for solving the problem]

[0005] The back pad of the present invention comprises a first pad member made of elastic synthetic resin and having a three-dimensional mesh structure, a second pad member adjacent to the first pad member made of elastic synthetic resin and having a three-dimensional mesh structure, and a connecting member that detachably connects the first pad member and the second pad member, and is detachably attached to a position or area of ​​the bag or bag that is in close contact with the user's body when the bag or bag is used by being held in close contact with the user's body.

[0006] Preferably, the first pad member and the second pad member have a base plate which is a mesh or lattice-like plate material, and a protrusion formed from an elastic synthetic resin and protruding from one side of the base plate, the base plate and the protrusion being integrally formed, and the multiple protrusions provided on one side of the base plate being regularly arranged.

[0007] Preferably, the connecting member connects the end of the first pad member to the end of the second pad member while the end of the first pad member is overlapped with the end of the second pad member, and the joint between the end of the first pad member and the end of the second pad member is smoothly connected on the side of the connected first and second pad members opposite the side on which the protrusion portion is formed.

[0008] Preferably, the first pad member and the second pad member are made of a synthetic resin containing polyethylene resin, and the protrusions are hard enough to be deformed by the force of fingers.

[0009] In addition, the pad member of the present invention has a base plate which is a mesh or lattice-like plate material, and a protrusion formed from an elastic synthetic resin and protruding from one side of the base plate, the base plate and the protrusion being integrally formed, and the multiple protrusions provided on one side of the base plate being regularly arranged. [Effects of the Invention]

[0010] According to this invention, the size can be adjusted to fit the back of the backpack. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a diagram illustrating a state in which a back support pad 1 according to the present embodiment is attached to a backpack B. FIG. [Figure 2] 1 is a front view illustrating the configuration of a back pad 1 in this embodiment. [Figure 3] 1 is a rear view illustrating the configuration of a back pad 1 in this embodiment. [Figure 4] 2 is a diagram illustrating a detailed configuration of a pad member 10. FIG. [Figure 5] 3 is a diagram illustrating a detailed configuration of a back pad main body 3. FIG. [Figure 6] 10 is a diagram illustrating a state in which the back support pad 1 is attached to another backpack B. FIG. [Figure 7] 10A and 10B are diagrams illustrating modified examples of the back pad 1 of the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0012] First, with reference to FIG. 1, an outline of the back pad 1 will be described. FIG. 1 is a diagram illustrating a state in which a back pad 1 according to this embodiment is attached to a backpack B. As shown in FIG. As shown in FIG. 1, the back pad 1 is detachably attached to a position or area of ​​the bag or purse that comes into close contact with the user's body. In this example, the back pad 1 is attached to the back of the bag or purse that is used in close contact with the user's body when the bag or purse is used in close contact with the user's body. The back pad 1 may be attached to a portion of the back, or may be attached to the entire back. Here, the bag or purse of this embodiment includes, for example, backpacks and shoulder bags. A backpack is a bag or container for carrying luggage that has multiple shoulder straps attached to it and is worn on the user's back with the shoulder straps slung over the user's shoulders. Specifically, backpacks include backpacks, rucksacks, daypacks, school bags, and school bags such as randoseru. A shoulder bag is a bag or container for carrying luggage that has a single shoulder strap or shoulder belt attached to it, which is worn diagonally across the user's shoulder. Specifically, shoulder bags include one-shoulder bags and body bags. However, the shoulder bag is not limited to these, and the back support pad 1 may also be provided on a waist bag or hip bag that is worn by wrapping a belt around the user's waist. The back pad 1 in this example is provided on the back rest BR of backpack B, which is a school bag. When the user is carrying backpack B, the back pad 1 separates the back rest BR of backpack B from the user's back. In other words, the back pad 1 is a device that ensures a space between the back rest BR and the user's back from the standpoint of ventilation and heat dissipation.

[0013] Next, the structure of the back pad 1 will be described with reference to FIGS. FIG. 2 is a front view illustrating the configuration of the back pad 1 in this embodiment. FIG. 3 is a rear view illustrating the configuration of the back pad 1 in this embodiment. As illustrated in FIGS. 2 and 3, the back pad 1 includes a back pad body 3 and a fixing member 5. As shown in FIG. The back pad main body 3 is a main unit component that constitutes the back pad 1. The back pad main body 3 includes a pad member 10 and a connecting member 20. The back pad main body 3 is formed by connecting a plurality of pad members 10 in a detachable manner using the connecting members 20. The back pad main body 3 is formed, for example, by connecting two or more pad members 10. The number of connected back pad main bodies 3 can be changed appropriately depending on the size of the back rest BR of the backpack B. In this example, the back pad main body 3 is formed by connecting six pad members 10 to correspond to the size of the back rest BR of the backpack B, which is a school bag.

[0014] The padding member 10 is a main component constituting the back pad body 3. The padding member 10 has a three-dimensional mesh structure. The padding member 10 is made of elastic synthetic resin. Two adjacent padding members 10 are detachably connected by a connecting member 20, which will be described later. In this embodiment, six padding members 10 are connected to accommodate the back rest BR of a school bag. Specifically, the padding members 10 include padding members 10A to 10F. The padding members 10A to 10F have substantially the same configuration, and will be simply referred to as padding member 10 unless there is a need to distinguish them. The multiple connected padding members 10A to 10F are arranged side by side in the length direction L or width direction W of the back rest BR of the backpack B illustrated in FIG. 1. In this example, the padding members 10A to 10F are arranged side by side in the same direction as the length direction L of the back rest BR. The padding members 10A to 10F are arranged side by side in the direction along the short sides. The detailed configuration of the pad member 10 will be described later. The pad member 10 is an example of a first pad member and a second pad member according to the present invention.

[0015] The connecting member 20 is a member that detachably connects multiple pad members 10 to each other. The connecting member 20 connects two adjacent pad members 10 with the ends of the two adjacent pad members overlapping each other. The connecting member 20 detachably connects multiple pad members 10 by mechanical bonding. Specifically, the connecting member 20 connects pad member 10A to pad member 10B. The connecting member 20 connects pad member 10B to pad member 10C. The connecting member 20 connects pad member 10C to pad member 10D. The connecting member 20 connects pad member 10D to pad member 10E. The connecting member 20 connects pad member 10E to pad member 10F. The connecting member 20 may connect two adjacent pad members 10 by, for example, binding them with an elastic band, riveting, or fastening them with bolts, nuts, or screws. Note that the connecting member 20 in this example connects two adjacent pad members 10 by binding them with an elastic band. Because the connecting member 20 connects two adjacent pad members 10 by mechanical bonding, each pad member 10 can be removed.

[0016] The fixing member 5 is a member that detachably fixes the back support pad 1 to the backrest BR of the backpack B. The fixing member 5 secures the multiple connected pad members 10A-10F by hanging them on the shoulder straps BS of the backpack B shown in FIG. 1. The fixing member 5 includes, for example, a rubber cord, such as a round or flat rubber cord, and a fastener (cord lock / cord stopper) that allows the tension and length of the rubber cord to be freely adjusted and secures the rubber cord at a specific position. As shown in FIGS. 1 to 3, the fixing member 5 includes fixing member 5A and fixing member 5B. Note that fixing member 5A and fixing member 5B have substantially the same configuration, and will be simply referred to as fixing member 5 unless there is a need to distinguish between them.

[0017] Fixing member 5A fixes multiple connected pad members 10 to one base of shoulder strap BS of backpack B. Fixing member 5A fixes pad member 10A, of multiple connected pad members 10A-10F, near the base located on the upper side of the shoulder strap BS of backpack B. Fixing member 5A in this example fixes an end of pad member 10A to the back strap of backpack B, which is a school bag. Fixing member 5B fixes multiple connected pad members 10 near the base of the other end of shoulder strap BS of backpack B. Fixing member 5B fixes pad member 10F, of multiple connected pad members 10A to 10F, to the base located below the shoulder strap BS of backpack B. Fixing member 5B in this example fixes the end of pad member 10F to the hook of backpack B.

[0018] Next, the detailed configuration of the pad member 10 will be described with reference to FIG. FIG. 4 is a diagram illustrating a detailed configuration of the pad member 10. As shown in FIG. As shown in FIG. 4, the pad member 10 is made of an elastic synthetic resin. The pad member 10 may be made of a synthetic resin containing at least polyethylene resin. The pad member 10 may be made of a synthetic resin containing, for example, polyethylene resin and vinyl chloride resin. The pad member 10 contains vinyl chloride resin in a volumetric ratio equal to or greater than the volumetric ratio of polyethylene resin. The pad member 10 of this example is made of only two components, polyethylene resin and vinyl chloride resin. For example, the pad member 10 may contain 40-50% polyethylene resin and 50-60% vinyl chloride resin, so that the total volume of the polyethylene resin and vinyl chloride resin is 100%. Specifically, the pad member 10 may contain 50% polyethylene resin and 50% vinyl chloride resin, or 40% polyethylene resin and 60% vinyl chloride resin, in a volumetric ratio. The pad member 10 is not limited to being made of only two components, polyethylene resin and vinyl chloride resin, and may contain other components. Furthermore, the pad member 10 may be made of only polyethylene resin from the viewpoints of safety during incineration, environmental load, and weight reduction. Furthermore, the pad member 10 may be made of only polyethylene resin, as long as it has elasticity equivalent to that of a synthetic resin containing polyethylene resin and vinyl chloride resin.

[0019] The pad member 10 has a three-dimensional mesh structure. The pad member 10 includes a base plate 100 and protrusions 110. The base plate 100 and the protrusions 110 are integrally formed. The pad member 10 has a three-dimensional mesh structure formed by providing a plurality of regularly arranged protrusions 110 on one side of the mesh-like base plate 100. The long side X of the pad member 10 is, for example, 225 mm to 235 mm, and is 230 mm in this example. The short side Y of the pad member 10 is, for example, 45 mm to 55 mm, and is 51 mm in this example. The thickness Z of the pad member 10 is, for example, 5 mm to 15 mm, and is 11 mm in this example.

[0020] The base plate 100 is a mesh or lattice-like plate material having a rectangular outer shape. The base plate 100 of this example has an outer shape that is a rectangle with rounded corners (rounded rectangle). The long side X of the base plate 100 is, for example, 225 mm to 235 mm, and is 230 mm in this example. The short side Y of the base plate 100 is, for example, 45 mm to 55 mm, and is 51 mm in this example. A protrusion 110 is provided on a first surface of the base plate 100. The first surface of the base plate 100 is inclined with respect to a second surface, which is the reverse side of the first surface. In this example, the first surface of the base plate 100 is inclined downward from a front end 100A to a rear end 100B in a side view. Therefore, the plate thickness T of the base plate 100 gradually decreases from the front end 100A to the rear end 100B. The thickness T of the base plate 100 is, for example, in the range of 1 mm or more and 5 mm or less. Specifically, the thickness T1 of the base plate 100 is 3 mm or more and 4 mm or less. The thickness T2 of the base plate 100 is 1 mm or more and 2 mm or less. The thickness T3 of the base plate 100 is 1 mm or more and 2 mm or less.

[0021] The base plate 100 includes an opening 102, a step 104, and a through hole 106. The openings 102 are holes provided on the surface of the base plate 100 and drilled in the thickness direction of the base plate 100. A plurality of openings 102 are arranged regularly. In this example, a plurality of openings 102 are arranged at equal intervals along the direction of the long side X (longitudinal direction) and the direction of the short side Y (transverse direction). The plurality of openings 102 have approximately the same size and shape. The step portion 104 is a step portion with a constant width that is provided at the front end portion 100A of the second surface of the base plate 100. The rear end portion 100B of the base plate 100 abuts against the step portion 104.

[0022] The through holes 106 are holes drilled in the thickness direction of the base plate 100. The through holes 106 are large enough to allow the connecting member 20 to pass through. The through holes 106 are provided in the front end 100A and the rear end 100B of the base plate 100. The multiple through holes 106 are provided at intervals in the longitudinal direction. Furthermore, when the front end 100A of one adjacent base plate 100 and the rear end 100B of the other adjacent base plate 100 are overlapped and connected, the through holes 106 of both base plates 100 overlap.

[0023] The protrusion 110 is formed from an elastic synthetic resin and is a protrusion that protrudes from one side of the base plate 100. In this example, the protrusion 110 is provided on the first side of the base plate 100. The protrusion 110 is provided on the side opposite to the second side of the base plate 100 that has the step portion 104. The protrusion 110 is formed by providing a plurality of struts 114 that curve from a circular tip portion 112 toward the base portion (base plate 100) and that radiate from the tip portion 112 as a center. The tip shape of the protrusion 110 is a rounded shape that curves smoothly from the tip portion 112. In other words, the portion of the protrusion 110 that comes into contact with the user is the rounded portion. Furthermore, the protrusion amount H of the protrusion 110 is, for example, 10 mm or more and 15 mm or less, and is approximately 10 mm in this example. The protrusion 110 is hard enough to be deformed by pressing with the force of a finger. After being pressed and deformed by the force of a finger, the protrusion 110 returns to its original state (the state before pressing) by releasing the pressing force. Furthermore, the multiple protrusions 110 are regularly arranged on one side of the base plate 100. In this example, the multiple protrusions 110 are arranged in the same arrangement pattern as the arrangement pattern of the openings 102 formed in the base plate 100. The protrusions 110 are arranged in pairs with the openings 102.

[0024] FIG. 5 is a diagram illustrating the detailed configuration of the back pad main body 3. As shown in FIG. As shown in FIG. 5, focusing on the connecting portion between pad members 10A and 10B of backrest pad main body 3, pad member 10A and the adjacent pad member 10B are connected by overlapping their edges. Connecting member 20 connects rear end 100B of pad member 10A to front end 100A of pad member 10B while overlapping rear end 100B of pad member 10A with front end 100A of pad member 10B. At this time, rear end 100B of pad member 10A abuts against step portion 104 of front end 100A of pad member 10B, engaging and connecting by utilizing the difference in height. On the second surface side of backrest pad main body 3, the seam between rear end 100B of pad member 10A and front end 100A of pad member 10B is smoothly connected. It is sufficient that the base plate 100 of the pad member 10A and the base plate 100 of the pad member 10B are smoothly connected without any steps. Although the above description has focused on the connecting portion between pad member 10A and pad member 10B of the backrest pad main body 3, this is not limited to this, and the connecting portion between pad member 10B and pad member 10C, the connecting portion between pad member 10C and pad member 10D, the connecting portion between pad member 10D and pad member 10E, and the connecting portion between pad member 10E and pad member 10F have the same configuration, so duplicate explanations will be omitted.

[0025] FIG. 6 is a diagram illustrating a state in which the back pad 1 is attached to another backpack B. As shown in FIG. 6, the back pad 1 can be attached to a backpack B other than a school bag. For example, the back pad 1 can be attached to the back rest BR of a backpack. The back rest BR of a backpack has a larger area than the back rest BR of a school bag. Therefore, the back pad 1 attached to the back rest BR of a backpack needs to be larger than the back pad 1 attached to the back rest BR of a school bag. The back pad main body 3 is made up of eight pad members 10 connected together to correspond to the size of the back rest BR of the backpack. The back pad main body 3 is made up of pad members 10A to 10F, as well as pad members 10G and 10H connected together. In this way, the backrest pad 1 can be configured by connecting a plurality of pad members 10 according to the size of the backrest BR.

[0026] As described above, the back pad 1 of this embodiment has a unit structure in which multiple pad members 10 of the same configuration are detachably connected in the required number, allowing the size to be freely adjusted to match the size of the back of the bag or purse, making it versatile for use. Furthermore, since the back pad 1 is made of a synthetic resin material, it is non-absorbent, thereby suppressing the absorption of sweat.

[0027] Furthermore, because the backrest pad 1 is made up of multiple detachable pad members 10 of similar construction, it is possible to remove and replace only the damaged or worn pad member 10. This eliminates the need to replace the entire unit, reducing the economic burden. Furthermore, the backrest pad 1 has a simple structure because it is made up of multiple pad members 10 of similar construction. This reduces manufacturing costs and is highly economical.

[0028] Furthermore, in the backrest pad 1, the seams between adjacent pad members 10 are smoothly connected on the second surface side of the backrest pad main body 3. This reduces the risk of damaging the backrest of a suitcase or bag. Although the embodiments of the present invention have been described above, the present invention is not limited to these, and various modifications and additions can be made without departing from the spirit of the invention.

[0029] Next, a modification of the above embodiment will be described. In the modified example, elements having substantially the same functions and configurations as those in the above embodiment are designated by the same reference numerals, and redundant explanations will be omitted. [Variation 1] FIG. 7 is a diagram illustrating a modified example of the back pad 1 of the embodiment. In the above embodiment, the back pad 1 is described as being installed on the back of a backpack, but this is not the only possible application. The pad member 10 of this embodiment may also be detachably attached to the shoulder strap or shoulder belt of a backpack or shoulder bag, whichever is closest to the user's body. As shown in FIG. 7, the padding member 10 is attached to the shoulder strap BS of backpack B in a position or area that comes into close contact with the user's body when the backpack or bag is used by placing it close to the user's body. In this example, the padding member 10 is attached near the upper base of the shoulder strap BS of backpack B, in an area that comes into close contact with the user's shoulders and chest. The padding member 10 is removably fixed to the shoulder strap BS by fixing member 5. The width of the fixed padding member 10 is smaller than the width of the shoulder strap. Thus, with the padding member 10 of this modified example, by providing a single padding member 10 on the shoulder straps BS in the area that comes into close contact with the user's body, it is possible to distribute pressure around the user's shoulders when carrying the backpack. This reduces the load on a single point, alleviating pain and significantly improving comfort while carrying the backpack, resulting in increased comfort. Furthermore, by creating a space between the user's body and the shoulder straps BS, breathability is ensured, resulting in reduced stuffiness. [Explanation of symbols]

[0030] 1 Back pad 3 Back pad body 10 Pad member 100 base plate 102 Opening 104 Step 106 Through hole 110 Protrusion 20 Connecting member 5 Fixing member

Claims

1. a first pad member formed of an elastic synthetic resin and having a three-dimensional mesh structure; a second pad member adjacent to the first pad member, formed of an elastic synthetic resin and having a three-dimensional mesh structure; a connecting member that detachably connects the first pad member and the second pad member; and When the bag is used by placing it in close contact with the user's body, the bag is detachably attached to a position or area of ​​the bag that comes into close contact with the user's body. Back support pad.

2. The first pad member and the second pad member are a base plate that is a mesh or lattice-shaped plate material; a protrusion formed of an elastic synthetic resin and protruding from one side of the base plate; and the base plate and the protrusion are integrally formed, A plurality of protrusions provided on one surface of the base plate are regularly arranged. The back pad according to claim 1.

3. the connecting member connects the end of the first pad member to the end of the second pad member in a state where the end of the first pad member is overlapped with the end of the second pad member; The joint between the end of the first pad member and the end of the second pad member is smoothly connected on the surface opposite to the surface on which the protrusion is formed of the first pad member and the second pad member. The back pad according to claim 2.

4. the first pad member and the second pad member are formed of a synthetic resin containing a polyethylene resin, The protrusions are hard enough to be deformed by the force of fingers. The back pad according to claim 3.

5. a base plate that is a mesh or lattice-shaped plate material; a protrusion formed of an elastic synthetic resin and protruding from one side of the base plate; and the base plate and the protrusion are integrally formed, A plurality of protrusions provided on one surface of the base plate are regularly arranged. Pad material.

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