Ultra-light backpack

Abstract

The utility model discloses an ultralight backpack which comprises a main body, one side, close to the back of a human body, of the main body is used as the back of the main body, the ultralight backpack is characterized by further comprising a shoulder strap connected with the main body, the shoulder strap comprises a filling part and at least one braid part, the braid part covers the outer side of the filling part, and the braid part covers the filling part. The braid part and the filling part are mutually laminated and compounded to form a shoulder strap shape, the filling part is formed by EVA (Ethylene Vinyl Acetate) foaming, a plurality of first air holes are uniformly distributed in the filling part and penetrate through the inner side and the outer side of the filling part, and the first air holes and the filling part are integrally punched and formed. According to the ultra-light EVA shoulder strap, the ultra-light EVA is used as the main body material of the shoulder strap, and the ultra-light EVA and the braid are compounded together in a pressed film manner by utilizing a pressed film compounding technology, so that the characteristics of good toughness, good comfort and air permeability of a traditional EVA shoulder strap can be kept, and the weight of the shoulder strap is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of backpacks, in particular to an ultralight backpack. Background Art

[0002] Most backpacks that use light weight as their main selling point use fabrics that are lighter in weight but have poor splitting properties, or use thin cotton to fill the shoulder straps and back panel. Some even abandon the back panel support and use fabric directly as the back panel. Although these methods can reduce the overall weight of the backpack, they seriously sacrifice the backpack's loading capacity and weight, as well as the comfort of carrying.

[0003] Backpacks currently on the market that pursue comfort basically all have strengthened shoulder straps and back panels, usually using thickened padding, EVA filling, or laminated molding. This increases comfort but also increases the weight of the backpack.

[0004] In view of this, the inventors of this case conducted in-depth research on the above-mentioned issues, which led to the creation of this case. Utility Model Content

[0005] The purpose of the utility model is to provide an ultralight backpack that takes into account both light weight and comfort.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solution:

[0007] Disclosed is an ultralight backpack comprising a main body, with the side of the main body close to the back of the human body being the back of the main body; and shoulder straps connected to the main body, the shoulder straps comprising a filling portion and at least one webbing portion, the webbing portion being wrapped around the outside of the filling portion, and the webbing portion and the filling portion being laminated and formed into a shoulder strap shape, the filling portion being an EVA foam-molded filling portion, and having a plurality of first air holes evenly distributed on the filling portion, the first air holes penetrating the inner and outer sides of the filling portion, and the first air holes and the filling portion being integrally stamped and formed.

[0008] Furthermore, the filling portion is a long strip structure, and the webbing portion is located at the outer edge of the filling.

[0009] Furthermore, the webbing portion is a Lycra webbing.

[0010] Furthermore, the webbing portion includes a first end portion and a second end portion, the first end portion is compounded on a side of the filling portion close to the back, and the second end portion is compounded on the other side of the filling portion away from the back, and a receiving area for placing the filling portion is formed between the first end portion and the second end portion at a position corresponding to one side of the filler.

[0011] Furthermore, the first ventilation holes are arranged in the middle and upper parts of the filling part.

[0012] Furthermore, it also includes a carrying mechanism connected to the back of the main body, the carrying mechanism is an EVA foam-molded back panel that matches the back of the human body, and a number of second air holes are evenly distributed on the back panel. The second air holes run through both sides of the back panel, and the second air holes are stamped integrally with the back panel.

[0013] Furthermore, a nylon mesh portion is provided on the side of the back panel close to the back.

[0014] Furthermore, the thickness of the nylon mesh portion is 0.03 mm, the thickness of the back panel is 5 mm, and the hardness of the back panel is 70A.

[0015] Furthermore, the main body is made of cool silk cotton fabric, and the back panel and the nylon mesh part are sewn together with the main body through sutures.

[0016] Furthermore, a handle is connected to the top of the main body, and the handle is made of cool silk cotton fabric and filled with elastic cotton.

[0017] By adopting the above-mentioned design scheme, the beneficial effects of the utility model are:

[0018] 1. Ultra-light EVA is used as the main material of the shoulder strap. The lamination technology is used to laminate the ultra-light EVA and webbing together. This not only maintains the good toughness, comfort and breathability of traditional EVA shoulder straps, but also effectively reduces the weight of the shoulder straps.

[0019] 2. Punching holes are left on the upper part of the shoulder strap, which can not only reduce weight and increase heat dissipation and air conduction of the shoulder, but also optimize the appearance of the shoulder strap and make it visually beautiful;

[0020] 3. The back panel is made of ultra-light EVA punching and then attached with nylon mesh, which reduces the overall weight of the backpack while ensuring the comfort of the carrying mechanism, effectively avoiding the problem of traditional functional back panels using too heavy materials to improve comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the utility model;

[0022] Figure 2 This is a schematic structural diagram of the back of the utility model;

[0023] In the figure: main body 1, handle 11, shoulder strap 2, filling part 21, webbing part 22, first ventilation hole 23, back panel 3, second ventilation hole 31, nylon mesh part 32, and suture line 33. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions in the embodiments of the present invention, in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Reference Figures 1 to 2 :

[0026] An ultralight backpack includes a main body 1, with the side of the main body 1 closest to the back of the user being referred to as the back portion of the main body 1. In the context of this application, the term "main body 1" is understood to refer to the portion of the backpack that contains the items contained therein and is typically worn on the wearer's back. The main body 1 may include at least one closable compartment and / or pocket for storing items.

[0027] The present application also includes two shoulder straps 2 connected to the main body 1 to form a backpack. The shoulder straps 2 include a filling portion 21 and at least one webbing portion 22. The webbing portion 22 wraps around the outside of the filling portion 21, and the webbing portion 22 and the filling portion 21 are laminated together to form the shape of the shoulder strap 2. The filling portion 21 is formed of EVA foam and is uniformly distributed with a plurality of first ventilation holes 23. The first ventilation holes 23 extend through both the inside and outside of the filling portion 21 and are integrally stamped and formed with the filling portion 21. The first ventilation holes 23 are located in the middle and upper portions of the filling portion 21, leaving perforations. This reduces weight while optimizing the shoulder strap's appearance and creating a visually appealing aesthetic. Traditional EVA-filled shoulder straps typically use mesh or fabric wrapped around the EVA, which is relatively heavy. This product utilizes ultra-light EVA laminated with lycra, maintaining the toughness and comfort of traditional EVA shoulder straps while reducing weight.

[0028] Furthermore, the filling portion 21 is a long strip structure, and the webbing portion 22 is located at the outer edge of the filling.

[0029] Furthermore, the webbing portion 22 is a Lycra webbing, and the webbing portion 22 includes a first end and a second end. The first end is compounded on the side of the filling portion 21 close to the back, and the second end is compounded on the other side of the filling portion 21 away from the back. A accommodating area for placing the filling portion 21 is formed between the first end and the second end at a position corresponding to one side of the filler.

[0030] The present application also includes a carrying mechanism connected to the back of the main body 1. The carrying mechanism is an EVA foam back panel 3 that conforms to the human back. The back panel 3 is evenly distributed with a plurality of second ventilation holes 31. The second ventilation holes 31 extend through both sides of the back panel 3 and are integrally stamped and formed with the back panel 3. Commercially available EVA foam material is inherently lightweight and highly elastic. Compared to traditional EVA foam or sponge fillings, an EVA foam back pad is less likely to collapse when carried long-term. Furthermore, the EVA foam back pad conforms to the human back, providing greater support stability and better spinal protection.

[0031] Furthermore, the back panel 3 is equipped with a nylon mesh portion 32 on the side closest to the back. This mesh portion 32 and the second ventilation holes 31 of the back panel 3 work together to effectively reduce sweating caused by the poor heat dissipation between the back and the backpack. This improves the comfort of wearing the backpack and promotes its ability to provide long-term, stable support and protection for the human spine. Compared to traditional back panels made of sandwich mesh and sponge pads, this back panel offers better breathability and is lighter.

[0032] Furthermore, the thickness of the nylon mesh portion 32 is 0.03 mm, the thickness of the back panel 3 is 5 mm, and the hardness of the back panel 3 is 70A.

[0033] Furthermore, the main body 1 is made of cool silk cotton fabric, and the back panel 3 and the nylon mesh portion 32 are sewn together with the main body 1 through sewing lines 33.

[0034] Furthermore, a handle 11 is connected to the top of the main body 1. The handle 11 is made of cool silk cotton fabric and is filled with elastic cotton, such as sponge, to facilitate users to carry the backpack.

[0035] The overall weight of the backpack in this application is about 460g, while the weight of a backpack of the same volume on the market is about 810g. While ensuring the comfort of the carrying system, the weight is reduced by about 43.2%.

[0036] This backpack strap is made of Lycra fabric and ultra-light EVA, using compression molding technology. The back panel is made of punched EVA as filler, and the main body is made of cool silk cotton fabric. This results in a backpack that's lighter than other backpacks of similar size on the market.

[0037] By adopting the above-mentioned design scheme, the beneficial effects of the utility model are:

[0038] 1. The main body 1 of the shoulder strap 2 is made of ultra-light EVA. Using the lamination technology, the ultra-light EVA and the webbing are laminated together. This not only maintains the good toughness, comfort and breathability of the traditional EVA shoulder strap 2, but also effectively reduces the weight of the shoulder strap 2.

[0039] 2. Punching holes are left on the upper part of the shoulder strap 2, which can reduce weight, increase heat dissipation and air conduction of the shoulder, and optimize the appearance of the shoulder strap 2, while also making it visually beautiful;

[0040] 3. The back panel 3 is made of ultra-light EVA punching and then attached with nylon mesh, which reduces the overall weight of the backpack while ensuring the comfort of the carrying mechanism, effectively avoiding the problem of traditional functional back panel 3 using too heavy materials to improve comfort.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultralight backpack, comprising a main body, wherein the side of the main body that is close to the back of the human body is the back of the main body, characterized in that: It also includes a shoulder strap connected to the main body, the shoulder strap includes a filling portion and at least one webbing portion, the webbing portion is covered on the outside of the filling portion, and the webbing portion and the filling portion are laminated and compounded with each other to form a shoulder strap shape, the filling portion is an EVA foam-molded filling portion, and a plurality of first air holes are evenly distributed on the filling portion, the first air holes pass through the inner and outer sides of the filling portion, and the first air holes and the filling portion are stamped integrally.

2. The ultralight backpack according to claim 1, characterized in that: The filling portion is a long strip structure, and the webbing portion is located at the outer edge of the filling portion.

3. The ultralight backpack according to claim 1, characterized in that: The webbing portion is a Lycra webbing.

4. The ultralight backpack according to claim 1, characterized in that: The webbing portion includes a first end portion and a second end portion, the first end portion is compounded on a side of the filling portion close to the back, and the second end portion is compounded on the other side of the filling portion away from the back, and a receiving area for placing the filling portion is formed between the first end portion and the second end portion at a position corresponding to one side of the filling portion.

5. The ultralight backpack according to claim 1, characterized in that: The first ventilation holes are arranged at the middle and upper parts of the filling part.

6. The ultralight backpack according to claim 1, characterized in that: It also includes a carrying mechanism connected to the back of the main body, the carrying mechanism is an EVA foam-molded back panel that matches the back of the human body, and a plurality of second air holes are evenly distributed on the back panel. The second air holes run through both sides of the back panel, and the second air holes are stamped integrally with the back panel.

7. The ultralight backpack according to claim 6, characterized in that: A nylon mesh portion is provided on one side of the back panel close to the back.

8. The ultralight backpack according to claim 7, characterized in that: The thickness of the nylon mesh part is 0.03 mm, the thickness of the back panel is 5 mm, and the hardness of the back panel is 70A.

9. The ultralight backpack according to claim 7, characterized in that: The main body is made of cool silk cotton fabric, and the back panel and the nylon mesh part are sewn together with the main body through sutures.

10. The ultralight backpack according to claim 1, characterized in that: A handle is connected to the top of the main body. The handle is made of cool silk cotton fabric and is filled with elastic cotton.

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