Backpack structure

Abstract

To provide a backpack having a cushioning function for reducing a burden on the body.SOLUTION: A backpack structure 2 includes a backpack body 21, an inverted U-shaped support rod 22, two elastic connecting straps 23, and two shoulder straps 24. The inverted U-shaped support rod is located right above the backpack body, and both ends are free ends, the inverted U-shaped support rod has a plurality of positioning grooves 222, one end of the elastic connecting strap is connected to the free end 221 of the inverted U-shaped support rod, the other end is connected to the backpack body, and the shoulder straps are provided on the back of the backpack body in a left-right symmetrical manner, one end of the shoulder straps is connected to the positioning groove of the inverted U-shaped support rod, and the other end is movably connected to a lower side or a side of the backpack body.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a backpack structure, and more particularly to a labor-saving backpack structure that allows the user to use it more comfortably. [Background technology]

[0002] A conventional backpack includes at least a backpack body 11 and two shoulder straps 12 that fit over the user's shoulders. The backpack body 11 contains the user's belongings. When carrying the backpack, the user can either support the weight of the backpack body 11 and its contents by hanging the shoulder straps 12 over their shoulders or by holding the shoulder straps 12 in their hands, allowing the user to carry the backpack body 11 containing the contents without exerting much physical strength.

[0003] As shown in Figures 1 and 2, the ends of shoulder straps 12 of a conventional backpack are attached to the upper and lower sides of the back of backpack body 11, with the backpack body 11 being attached away from the back. Because the backpack body 11 containing the contents is not only heavy but also has a certain thickness, the vertical downward gravity W of the backpack body 11 and the acting force F when the user carries the backpack on their back or holds the shoulder straps 12 in their hands are not positioned on the same vertical line P, resulting in the generation of torque T. For example, a force greater than the gravity W of the backpack body 11 must be applied by applying force to the back or shifting the body's center of gravity to offset torque T. This not only requires more physical strength but also places strain on the spine, which can have adverse health effects.

[0004] Furthermore, whether the backpack is carried in the user's hands or on the back, the user's body moves regularly when walking, and the above-mentioned conventional backpacks share the total weight of the backpack body 11 directly through the two shoulder straps 12. This requires additional force to offset the relative movement caused by the positional changes between the user's body and the backpack during movement, which consumes more physical strength.

[0005] As mentioned above, conventional backpacks have the problem of increasing the burden on the body, and limiting the range and time of movement when carrying a backpack. Therefore, how to solve the above-mentioned problems and drawbacks of conventional backpacks has become the direction of improvement work for inventors and those skilled in the art. Summary of the Invention [Problem to be solved by the invention]

[0006] SUMMARY OF THE INVENTION In order to effectively solve the above problems, one object of the present invention is to provide a labor-saving backpack structure having a shock-absorbing function. [Means for solving the problem]

[0007] To achieve the above object, the present invention provides a backpack structure including a backpack body, an inverted U-shaped support rod, two elastic connecting straps, and two shoulder straps. The inverted U-shaped support rod is located directly above the backpack body, with both ends free, and has a number of positioning grooves, one end of each elastic connecting strap is connected to the free end of the inverted U-shaped support rod and the other end is connected to the backpack body. The shoulder straps are located on the back of the backpack body, one end of each shoulder strap connected to the positioning grooves of the inverted U-shaped support rod, and the other end is movably connected to the underside or side of the backpack body. [Effects of the Invention]

[0008] As a result, in the backpack structure of the present invention, the acting force from the shoulder straps is located directly above the backpack body, eliminating the problem of using extra physical strength when carrying the backpack because the acting force and the gravity generated by the weight of the backpack body are not on the same vertical line, and further reducing the additional acting force, thereby realizing labor savings.In addition, the elastic connecting straps connected to the inverted U-shaped support rods are further connected to the backpack body, providing cushioning when the user walks, and the relative movement between the body and the backpack is offset, realizing labor savings and cushioning for the user's shoulders. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view of a conventional backpack. [Figure 2] FIG. 1 is a side view of a conventional backpack. [Figure 3] 1 is an exploded schematic view of the backpack structure of the present invention. [Figure 4] 1 is an assembly diagram of the backpack structure of the present invention. [Figure 5] FIG. 1 is a rear view of the backpack structure of the present invention. [Figure 6] 1 is a schematic diagram of an embodiment of the backpack structure of the present invention in use; [Figure 7] 10 is a schematic diagram of another embodiment of the backpack structure of the present invention in use. FIG. [Figure 8] FIG. 10 is a rear view of another embodiment of the backpack structure of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0010] The above objects of the present invention and its structural and functional characteristics will be described below through preferred embodiments shown in the drawings.

[0011] Please refer to Figure 3, which is an exploded schematic diagram of the backpack structure of the present invention, Figure 4, which is an assembled schematic diagram of the backpack structure of the present invention, Figure 5, which is a rear view of the backpack structure of the present invention, Figure 6, which is a schematic diagram of one embodiment of the backpack structure of the present invention when in use, Figure 7, which is a schematic diagram of another embodiment of the backpack structure of the present invention when in use, and Figure 8, which is a rear view of another embodiment of the backpack structure of the present invention.

[0012] As shown in Figures 3 to 5, the present invention provides a backpack structure 2 including a backpack body 21, an inverted U-shaped support rod 22, two elastic connecting straps 23, and two shoulder straps 24. The inverted U-shaped support rod 22 is located directly above the backpack body 21, with both ends 221 being free, and the inverted U-shaped support rod 22 has a number of positioning grooves 222. Inside the backpack body 21, there is formed a storage space (not shown) for the user to store personal items such as a laptop computer, files, an umbrella, a water bottle, and stationery, which adds weight.

[0013] In this case, each of these elastic connecting straps 23 has one end connected to the free end 221 of the inverted U-shaped support rod 22 and the other end connected to the backpack body 21, for example, connected to the side 211, and each of these shoulder straps 24 is provided on the left and right sides of the back surface 212 of the backpack body 21, with one end connected to the positioning groove 222 of the inverted U-shaped support rod 22 and the other end connected to the underside 213 or side 211 of the backpack body 21. As a result, each of these shoulder straps 24 transmits force via the inverted U-shaped support rod 22, rather than being directly connected to the backpack body 21 and transmitting the acting force F or receiving the gravity W thereof. Furthermore, the inverted U-shaped support rod 22 is located directly above the backpack body 21, and in particular, corresponds vertically to the center of gravity of the backpack body 21. Therefore, as shown in FIG. 4, when transmitting the acting force F or gravity W, the gravity W and the acting force F by the user are located on substantially the same vertical line P, which reduces the generation of torque between the two forces. The user only needs to offset the gravity W of the backpack body 21 containing the contents, which not only saves the user's physical strength but also reduces the impact on the user's health.

[0014] For example, a user can move around by hanging these shoulder straps 24 on their shoulders or holding the inverted U-shaped support rod 22 in their hands. Specifically, the inverted U-shaped support rod 22 can be made of a material with a certain rigidity and hardness, such as plastic, wood, or metal (such as an extruded tube), to transmit force. Those skilled in the art will clearly understand that the inverted U-shaped support rod 22 is unlikely to undergo elastic or plastic deformation under the influence of an external force, which would change the relative positions of the acting force F and gravity W. The present invention not only positions the force on the same vertical line P, but also ensures that the force is not absorbed or dispersed due to material deformation caused by the external force during transmission.

[0015] Furthermore, the inverted U-shaped support rod 22 has a horizontal portion 22A that corresponds to the upper side 214 of the backpack body 21 and extends in opposite directions to connect to two curved portions 22B, and the curved portions 22B extend while bending to correspond to the side sides 211 of the backpack body 21, and these free ends 221 are formed at these curved portions 22B. As shown in Fig. 8, in another embodiment, the horizontal portion 22A of the inverted U-shaped support rod 22 can integrally form an arc-shaped rod together with the upper side 214 of the backpack body 21, or the horizontal portion 22A and the curved portions 22B can together form an arc-shaped rod (not shown). Furthermore, these elastic connecting straps 23 can be, for example, a braided belt such as a rubber band.

[0016] 6 and 7, when using the backpack structure 2 of the present invention, in one embodiment, the user drapes the shoulder straps 24 over their shoulders or holds the inverted U-shaped support rod 22 in their hands. The elastic connecting straps 23, which are connected to the inverted U-shaped support rod 22, are connected to the sides 211 of the backpack body 21, respectively, to provide cushioning during movement. When the user moves, the relative movement between the body and the backpack body 21 is stored as elastic energy via the elastic connecting straps 23 and is released when the relative height between the body and the backpack body 21 changes, thereby canceling out the relative movement between the two. This saves the physical strength equivalent to the additional force required for cancellation in the conventional method, provides an elastic cushioning effect between the user's body and the backpack body 21, and prevents user fatigue.

[0017] 5 and 8, a static distance H is maintained between the inverted U-shaped support rod 22 and the backpack body 21 via the horizontal portion 22A and the curved portion 22B formed corresponding to the upper side 214 and the side 211 of the backpack body 21. Also, as shown in FIGS. 5 and 6, the backpack body 21 may further have at least one lug 215, which is provided on the upper side 214 or the side 211 of the backpack body 21 corresponding to the inverted U-shaped support rod 22 and through which the inverted U-shaped support rod 22 passes. The lugs 215 may also be elastic woven belts such as rubber bands, which allow a certain elastic change to occur during relative movement between the inverted U-shaped support rod 22 and the backpack body 21 and, together with the elastic connecting straps 23, can cushion the relative movement that occurs while the user is moving.

[0018] 7, in another embodiment, the user can carry the backpack body 21 by hanging the shoulder straps 24 on their shoulders. In this case, the backpack structure 2 of the present invention is provided with the elastic connecting straps 23 and the plurality of lugs 215, both of which are elastic, so that when the user is moving, the distance between the backpack body 21 and the inverted U-shaped support rod 22 can be adjusted according to the state of relative movement. For example, when the user presses their back against the backpack body 21 while moving, the shoulder straps 24 and the inverted U-shaped support rod 22 can be tilted slightly forward, and at this time the distance between the backpack body 21 and the inverted U-shaped support rod 22 is greater than the static distance H. When the user's force is released, the shoulder straps 24 and the inverted U-shaped support rod 22 return to the corresponding position directly above the backpack body 21, and the distance also returns to the static distance H accordingly.

[0019] In the present invention, one end of each of the shoulder straps 24 may be connected to the positioning grooves 222 by engagement, interference fit, hooking, or adhesive. Similarly, the other ends of the elastic connecting straps 23 and the other ends of the shoulder straps 24 may also be connected to the backpack body 21 by engagement, interference fit, hooking, or adhesive. As a result, in the present invention, the inverted U-shaped support rod 22, the elastic connecting straps 23, and the shoulder straps 24 are movably separated from each other relative to the backpack body 21, allowing for storage, maintenance, repair, selection, etc. to meet the individual needs of the user.

[0020] For example, one end of each shoulder strap 24 may be engaged with and connected to the positioning grooves 222. In this embodiment, each positioning groove 222 has a through-hole formed therein. As shown in FIG. 3 , one end of each shoulder strap 24 may be provided with a fixing part 243, which has a positioning hole 243A formed in each of the fixing parts 243 corresponding to the positioning grooves 222, allowing at least one fastener 244 to pass through and be restricted by the positioning hole 243A and the positioning groove 222 simultaneously. In addition, since the positioning grooves 222 are formed on the left and right sides of the inverted U-shaped support rod 22, the user can adjust the shoulder straps 24 according to their shoulder width and connect them symmetrically to two of the positioning grooves 222 to meet the user's individual needs. Furthermore, each of these fixing parts 243 may further have a guide portion 243B that allows the user to adjust the fixing parts 243 themselves to fit the width of the body part by guiding the fixing parts 243 and moving them axially along the inverted U-shaped support rod 22.

[0021] In another embodiment, the other ends of these elastic connecting straps 23 and the other ends of these shoulder straps 24 may also be engaged and connected to the backpack body 21. However, in this embodiment, the engagement is shown as a press-release buckle (not shown) having an engaging portion and a joining portion being fixed therebetween, and the engaging portions are fixed to each other by at least one elastic button formed on the engaging portion, and the user can separate the two from each other at any time by pressing the at least one elastic button.

[0022] The engagement can be achieved by using a horizontal hollow spring pin. A tight fit can be achieved by fastening the shoulder straps 24 or elastic connecting straps 23 with a toothed clip, for example. A hanging fit can be achieved by hooking a spring hook onto the shoulder straps 24 or elastic connecting straps 23 and springing it back to close the opening. An adhesive can be achieved by fastening hook-and-loop fasteners together. Any conventional technology in the art that can achieve a movable connection can be used as long as it meets the individual needs of the user.

[0023] As described above, the inverted U-shaped support rod 22, its elastic connecting straps 23, or its shoulder straps 24 can each be selected from different materials, styles, and colors that can be movably connected to the backpack body 21 according to the individual needs of the user, thereby obtaining a unique backpack structure 2 of the present invention that is unique to the user.

[0024] Although the present invention has been described in detail above, it is merely a preferred embodiment of the present invention and does not limit the scope of the present invention. Based on the claims of the present invention, if equivalent changes and modifications are made, they all fall within the scope of protection of the present invention. [Explanation of symbols]

[0025] 11 Backpack body 12 Shoulder strap 2. Backpack structure 21 Backpack body 211 Lateral 212 Back 213 Lower side 214 Upper 215 Rug 22 Inverted U-shaped support rod 22A horizontal section 22B curved section 221 Free end 222 Positioning groove 23 Elastic connecting straps 24 Shoulder strap 243 Fixing parts 243A Positioning hole 243B Guide part 244 Fasteners F acting force W gravity T Torque P vertical line H static distance

Claims

1. A backpack structure, The backpack itself, an inverted U-shaped support rod located directly above the backpack body, the inverted U-shaped support rod having free ends at both ends and a plurality of positioning grooves; two elastic connecting straps, one end of which is connected to the free end of the inverted U-shaped support rod and the other end of which is connected to the backpack body; two shoulder straps provided on the back surface of the backpack body, one end of which is connected to the positioning groove of the inverted U-shaped support rod, and the other end of which is movably connected to the underside or side of the backpack body; A backpack structure comprising:

2. 2. The backpack structure of claim 1, wherein the shoulder straps are connected to the locating grooves by engagement, interference fit, hooking or adhesive.

3. The backpack structure according to claim 2, characterized in that one end of each of the shoulder straps is engaged with and connected to the positioning grooves, and a fixing part is provided at one end of each of the shoulder straps, and each of the fixing parts has a positioning hole corresponding to the positioning groove, and at least one fastener is passed through and restricted by the positioning hole and the positioning groove simultaneously.

4. 4. The backpack structure of claim 3, wherein the fixed components each have a guide portion that guides the fixed components to move axially along the inverted U-shaped support rod on the inverted U-shaped support rod.

5. 2. The backpack structure according to claim 1, wherein the other ends of the elastic connecting straps and the other ends of the shoulder straps are respectively connected to the backpack body by engagement, interference fit, hooking or adhesive.

6. The backpack structure according to claim 5, wherein the other ends of the elastic connecting straps and the other ends of the shoulder straps are respectively engaged with and connected to the backpack body, and a press-release buckle having an engaging portion and a joining portion is fixed between them, and the engaging portion and the joining portion are fixed to each other by at least one elastic button formed on the engaging portion.

7. 2. The backpack structure of claim 1, wherein the inverted U-shaped support rod has a horizontal portion that corresponds to the upper side of the backpack body and extends in opposite directions to connect to two curved portions, the curved portions extend and bend to correspond to the sides of the backpack body, and the two free ends are formed at these curved portions, respectively.

8. 8. The backpack structure of claim 7, wherein there is a static distance between the inverted U-shaped support rod and the backpack body.

9. 9. The backpack structure according to claim 8, wherein the backpack body further comprises at least one lug, the lug being provided on the upper side or side of the backpack body corresponding to the inverted U-shaped support rod, and the inverted U-shaped support rod being inserted therethrough.

10. 2. The backpack structure of claim 1, wherein the elastic connecting straps are braided belts.

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