A back pad structure for a backpack and a backpack thereof

Abstract

The utility model discloses a back pad structure for knapsack and knapsack thereof, the back pad structure includes the inside layer, first buffer layer, base layer, second buffer layer, third buffer layer and outside layer that set up from the inside of knapsack to human side in proper order, the back pad structure of the utility model realizes the progressive effect of " protection - buffer - support - buffer - ventilation " through the function division and cooperation of multilayer material, through the common action of multilayer structure to human back, realized the multifunctional cooperation of protection, buffer, support, buffer, ventilation, reduced the burden of spine, promoted the comfort of carrying on the back, solved the problem of single function of traditional back pad.

Description

Technical Field

[0001] This utility model relates to the field of backpack accessories technology, and in particular to a back pad structure for a backpack and the backpack thereof. Background Technology

[0002] Traditional backpack back pads often use a single material or a simple composite structure, which generally suffers from poor breathability, insufficient cushioning, and inadequate spinal support. During prolonged use, the back can become stuffy and hot, and the concentrated weight of the backpack compresses the spine, potentially leading to back discomfort or even spinal injury. Therefore, this invention provides a back pad structure that combines breathability, cushioning, and spinal support to improve the comfort and safety of backpack use. Utility Model Content

[0003] The purpose of this utility model is to provide a back pad structure for a backpack and a backpack thereof, so as to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution:

[0004] The first aspect of this utility model provides a back pad structure for a backpack, characterized in that the back pad structure includes an inner surface layer, a first buffer layer, a base layer, a second buffer layer, a third buffer layer, and an outer surface layer arranged sequentially from the inside of the backpack to the human body side.

[0005] Preferably, the inner surface layer is a 210D polyester lining.

[0006] Preferably, the first buffer layer is 6mm pearl cotton.

[0007] Preferably, the base layer is a 120G nonwoven fabric.

[0008] Preferably, the second buffer layer is 12mm pearl cotton.

[0009] Preferably, the third buffer layer is a 10mm sponge.

[0010] Preferably, the outer layer is a three-layer mesh fabric.

[0011] Preferably, the base layer, the second buffer layer, the third buffer layer and the outer surface layer are all configured as fan-shaped structures that taper inward on both sides at the bottom.

[0012] A second aspect of this utility model also provides a backpack, which includes the back pad structure described above.

[0013] Furthermore, the backpack is equipped with a zippered pocket located on the inwardly tapering part of the side of the fan-shaped structure.

[0014] The beneficial effects of this utility model are as follows: The back pad structure of this utility model achieves a progressive effect of "protection-buffering-support-buffering-breathability" through the functional division and synergy of multiple layers of materials; through the joint action of multiple layers on the human back, it achieves multi-functional synergy of protection, buffering, support, cushioning and breathability, reduces the burden on the spine, improves carrying comfort, and solves the problem of the single function of traditional back pads. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the back pad structure of this utility model.

[0017] Figure 2 This is an exploded structural diagram of the back pad structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the backpack of this utility model.

[0019] It should be noted that the accompanying drawings are not necessarily drawn to scale, but are shown only in a schematic manner without affecting the reader's understanding. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0022] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0023] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0024] Example 1:

[0025] like Figure 1 and Figure 2 As shown, this embodiment discloses a back pad structure 1 for a backpack. The back pad structure 1 includes an inner surface layer 11, a first cushioning layer 12, a base layer 13, a second cushioning layer 14, a third cushioning layer 15, and an outer surface layer 16, arranged sequentially from the inside of the backpack towards the body. The functional layers are stacked sequentially from the inside of the backpack towards the body. The inner surface layer 11 is the functional layer closest to the inside of the backpack, and the outer surface layer 16 is the functional layer closest to the back of the body. They are fixedly connected by sewing to form an integral composite structure, ensuring that the layers work together without separation.

[0026] The design principle of the back pad structure 1 in this implementation scheme is as follows: through the functional division and synergy of multiple layers of materials, a progressive effect of "protection-cushioning-support-cushioning-breathability" is achieved. Specifically, the inner surface layer 11 provides basic protection, the first cushioning layer 12 absorbs shock, the base layer 13 maintains structural stability, the second and third cushioning layers 14 and 15 disperse pressure, and the outer surface layer 16 promotes breathability. Through the combined action of these multiple layers on the human back, multi-functional synergy of protection, cushioning, support, cushioning, and breathability is achieved, reducing spinal burden, improving carrying comfort, and solving the problem of the single function of traditional back pads.

[0027] In some implementations, the inner surface layer 11 is made of 210D polyester lining, which has high strength and abrasion resistance. As the innermost layer of the back pad, it directly contacts the internal filling of the backpack, preventing the internal items from wearing away or snagging the inner layer materials such as the cushioning layer. The outer side of the inner surface layer 11 (the side closest to the human body) is sewn to the first cushioning layer 12 to form a composite unit of "inner surface layer 11 + first cushioning layer 12", providing basic protection, extending the service life of the internal materials of the back pad, and ensuring the long-term stability of the cushioning and support functions.

[0028] In some implementations, the first cushioning layer 12 is made of 6mm EPE (expanded polyethylene), which is lightweight, flexible, and has excellent resilience. When the user walks or exercises, it can effectively absorb the vibration generated by the backpack's movement, preventing the vibration from being directly transmitted to the spine. At the same time, its softness can conform to the curve of the back, reducing local pressure. The EPE is located between the inner surface layer 11 and the base layer 13. The inner side is sewn to the inner surface layer 11, and the outer side is sewn to the base layer 13, forming a cushioning-support transition structure. By absorbing vibration and conforming to the curve, it reduces the hard impact on the spine and improves the immediate comfort when carrying the backpack.

[0029] In some implementations, the base layer 13 is made of 120G nonwoven fabric, which possesses good structural stability and breathability. It maintains the overall shape of the back pad, preventing deformation and providing stable support for the spine to maintain correct posture. Furthermore, its breathability allows airflow from the outer layer 16 to be transferred to the inner layer, preventing interruption of ventilation. The 120G nonwoven fabric is located between the first buffer layer 12 and the second buffer layer 14, sewn to the first buffer layer 12 on the inside and to the second buffer layer 14 on the outside. As the core of the back pad's structural support, it ensures the stability of the back pad structure 1, providing a foundation for spinal support while maintaining overall breathability, thus solving the problem of balancing support and breathability.

[0030] In some implementations, the second cushioning layer 14 is made of 12mm pearl cotton. The 12mm pearl cotton is located between the base layer 13 and the third cushioning layer 15, with its inner side sewn to the base layer 13 and its outer side sewn to the third cushioning layer 15, forming a superimposed cushioning structure. The high resilience of the pearl cotton enhances the cushioning effect and works synergistically with the third cushioning layer 15 to evenly distribute the pressure generated by the backpack's weight across multiple areas of the back, reducing localized pressure and preventing excessive load on the spine caused by concentrated weight in one area. This further reduces spinal burden and improves comfort during extended carrying.

[0031] In some implementations, the third cushioning layer 15 is a 10mm thick sponge. The sponge is soft and delicate, quickly conforming to the curve of the human back, providing an immediate "soft landing" sensation, and assisting the second cushioning layer 14 in further dispersing pressure and reducing hard friction between the back and the back pad. The 10mm sponge is located between the second cushioning layer 14 and the outer layer 16, with its inner side sewn to the second cushioning layer 14 and its outer side sewn to the outer layer 16. As a "soft contact" layer close to the human body, it can improve the fit between the back pad and the body, enhance the softness of carrying, and reduce local discomfort.

[0032] In some implementations, the outer layer 16 is a three-layer mesh fabric with a porous 3D structure, which is highly breathable, promotes air circulation in the back, and reduces stuffiness caused by prolonged carrying. At the same time, its three-dimensional structure can maintain a certain degree of support, avoiding the problem of excessive tightness due to excessive softness. As the outer layer 16, which is closest to the human body, the inner side of the three-layer mesh fabric is sewn to the third cushioning layer 15 to form the "contact surface" of the back pad, keeping the back dry and solving the problem of stuffiness in traditional back pads. This indirectly reduces the potential damage to the spine caused by frequent posture adjustments due to discomfort.

[0033] In some implementations, the base layer 13, the second buffer layer 14, the third buffer layer 15, and the outer layer 16 are all cut in a fan-shaped structure, with their lower sides tapering inwards, creating an overall fan-shaped structure that matches the curves of the human back and waist. Simultaneously, recessed areas are formed at the fan-shaped tapering points. This fan-shaped structure is ergonomic, conforming to the natural curves of the back and waist, improving the fit between the back pad and the back and waist, concentrating pressure on the support areas of the shoulders and the center of the back, enhancing the targeted cushioning effect, and reducing pressure on the sides of the waist.

[0034] Example 2:

[0035] Based on the same inventive concept as the back pad structure 1 in Embodiment 1, this embodiment discloses a backpack 2, such as... Figure 3 As shown, backpack 2 includes the back pad structure 1 described in Embodiment 1. The back pad structure 1 is sewn and fixed to the back panel of the main body of backpack 2. The upper ends of the shoulder straps of backpack 2 are sewn and fixed to the upper back of the main body of backpack 2, forming a complete carrying system together with the back pad structure 1. As the core component of backpack 2 that comes into contact with the human body, the back pad structure 1 distributes the weight of backpack 2 to the human body through multiple layers of cushioning and support structures, while maintaining back ventilation. It achieves an integrated function of "load-bearing, spine protection, and breathability," enabling backpack 2 to have both storage function and the advantages of spine protection and breathability. This solves the problem of traditional backpacks where "practicality and comfort are difficult to balance," making it suitable for various scenarios such as daily travel and sports.

[0036] In some implementations, the backpack 2 is equipped with a zippered pocket 21. The zippered pocket 21 is sewn to the recessed area on the side of the fan-shaped structure that tapers inward. The edge of the zippered pocket 21 is sewn to the back pad structure 1 or the main body of the backpack 2, without affecting the fan-shaped fit of the back pad structure 1. This implementation utilizes the recessed space formed by the shrinking fan-shaped structure to set up the zippered pocket, which neither occupies the back-fitting area nor affects the cushioning and breathability of the back pad, while providing users with convenient storage space for small items such as keys and cards. Without sacrificing back support and breathability, the backpack's storage practicality is increased, achieving efficient use of space.

[0037] It should also be noted that, without conflict, the embodiments of this utility model and the features therein can be combined with each other to obtain new embodiments.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. The scope of protection of the present utility model should be determined by the scope of the claims. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A back pad structure for a backpack, characterized by, The back pad structure (1) includes an inner surface layer (11), a first buffer layer (12), a base layer (13), a second buffer layer (14), a third buffer layer (15), and an outer surface layer (16) arranged sequentially from the inside of the backpack to the human body.

2. The back pad structure according to claim 1, characterized in that, The inner surface layer (11) is 210D polyester lining fabric.

3. The back pad structure according to claim 1, characterized in that, The first buffer layer (12) is 6mm pearl cotton.

4. The back pad structure according to claim 1, characterized in that, The base layer (13) is a 120G nonwoven fabric.

5. The back pad structure according to claim 1, characterized in that, The second buffer layer (14) is 12mm pearl cotton.

6. The back pad structure according to claim 1, characterized in that, The third buffer layer (15) is a 10mm sponge.

7. The back pad structure according to claim 1, characterized in that, The outer layer (16) is a three-layer mesh fabric.

8. The back pad structure according to claim 1, characterized in that, The base layer (13), the second buffer layer (14), the third buffer layer (15) and the outer layer (16) are all configured as fan-shaped structures that taper inward on both sides at the bottom.

9. A backpack, characterized in that, It includes the back pad structure (1) as described in any one of claims 1 to 8.

10. The backpack according to claim 9, characterized in that, The backpack (2) is provided with a zippered pocket (21), which is located on the inwardly tapering part of the side of the fan-shaped structure.

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