Backpack structure

Abstract

The present invention discloses a backpack structure comprising a backpack body, an inverted U-shaped support, two elastic connecting belts, and two shoulder straps. The inverted U-shaped support is positioned directly above the backpack body and has free ends at two ends, and a plurality of positioning grooves are arranged on the inverted U-shaped support; one end of each elastic connecting belt is connected to the free end of the inverted U-shaped support, and the other end is connected to the backpack body; and the shoulder straps are positioned corresponding to the rear left and right sides of the backpack body, and one end of each shoulder strap is connected to the positioning groove of the inverted U-shaped support, and the other end is movably connected to the lower side or side of the backpack body.

Description

Technology Field

[0001] The present invention relates to a backpack structure, in particular to a backpack structure capable of providing comfort and labor-saving use to the user. Background Technology

[0002] A conventional backpack includes at least a backpack body (11) and two shoulder straps (12) that are worn over the user's shoulders. The backpack body (11) is provided to hold any items that the user needs to carry. When the user wears the backpack on their shoulders, the weight of the backpack body (11) and the items inside it can be supported through the shoulder straps (12) on the shoulders, or the backpack body (11) (including the items) can be carried by hand through the shoulder straps (12), thereby reducing physical effort and making movement convenient.

[0003] As illustrated in FIGS. 1 and 2, the two ends of the shoulder straps (12) of the conventional backpack are positioned to correspond to the upper and lower sides of the backrest of the backpack body (11), and the backpack body (11) is positioned in a direction away from the user's back. Due to these limitations and the fact that the backpack body (11) (including the item) has a certain thickness in addition to its weight, the vertical downward gravity (W) generated by the backpack body (11) and the force (F) applied by the user's shoulder or hand to support the shoulder straps (12) are not located on the same vertical line (P), resulting in the generation of a force couple (T). Additional force (not shown in the drawings) is required to apply force in addition to the gravity (W) of the backpack body (11), such as using the user's back, or to change the center of gravity of the body to balance the force couple (T). This not only increases the physical burden but also places a burden on the user's spine, negatively affecting physical health.

[0004] Moreover, whether the backpack is held in the hand or carried on the shoulder, the user's body moves regularly while walking. However, as mentioned above, conventional backpacks directly distribute the entire weight of the backpack body (11) through two shoulder straps (12), which means that additional force must be applied to balance the relative movement due to the difference in position between the user's body and the backpack, which significantly increases physical activity.

[0005] In summary, existing backpacks have the problem of increasing the physical burden mentioned above and also shortening the range of motion and time when wearing a backpack. Therefore, the inventor of the present invention and related manufacturers involved in this industry are enthusiastic about research and improvement to solve the problems and disadvantages of the prior art mentioned above.

[0006] Therefore, in order to effectively solve the aforementioned problems, one objective of the present invention is to provide a backpack structure that can reduce the burden and provide a cushioning function.

[0007] To achieve the above-mentioned purpose, the present invention provides a backpack structure comprising a backpack body, an inverted U-shaped support, two elastic connecting belts, and two shoulder straps. The inverted U-shaped support is positioned directly above the backpack body and has free ends at two ends, and a plurality of positioning grooves are arranged on the inverted U-shaped support; one end of each elastic connecting belt is connected to the free end of the inverted U-shaped support, and the other end is connected to the backpack body; and the shoulder straps are arranged corresponding to the rear left and right sides of the backpack body, one end of each shoulder strap is connected to the positioning groove of the inverted U-shaped support, and the other end is movably connected to the lower side or side of the backpack body.

[0008] Accordingly, the backpack structure of the present invention ensures that the position of force application of the shoulder straps is located directly above the backpack body. This prevents the problem of requiring additional force due to gravity, which arises when the applied force and the weight of the backpack body are not aligned on the same vertical line while carrying the backpack structure, thereby reducing additional applied force and physical burden. Furthermore, by connecting an elastic connecting belt attached to an inverted U-shaped support to the backpack body, a cushioning sensation is provided to the user during walking and movement. This allows the relative movement between the user's body and the backpack to be balanced, which not only reduces physical burden but also provides cushioning to the user's shoulders. Brief explanation of the drawing

[0009] Figure 1 is a perspective view of a conventional backpack. Figure 2 is a side view of a conventional backpack. FIG. 3 is an exploded perspective view of the backpack structure of the present invention. Figure 4 is an assembly diagram of the backpack structure of the present invention. FIG. 5 is a rear view of the backpack structure of the present invention. FIG. 6 is a schematic diagram of a backpack structure in use according to an embodiment of the present invention. FIG. 7 is a schematic diagram of a backpack structure in use according to another embodiment of the present invention. FIG. 8 is a rear view of another embodiment of the backpack structure of the present invention. Specific details for implementing the invention

[0010] The above objectives of the present invention and its structural and functional features will be explained according to preferred embodiments of the accompanying drawings.

[0011] Refer to FIG. 3 for an exploded perspective view of the backpack structure of the present invention; refer to FIG. 4 for an assembled view of the backpack structure of the present invention; refer to FIG. 5 for a rear view of the backpack structure of the present invention; refer to FIG. 6 for a schematic diagram of the backpack structure in use according to an embodiment of the present invention; refer to FIG. 7 for a schematic diagram of the backpack structure in use according to another embodiment of the present invention; and refer to FIG. 8 for a rear view of another embodiment of the backpack structure of the present invention.

[0012] As illustrated in FIGS. 3, 4 and 5, the present invention provides a backpack structure (2) comprising a backpack body (21), an inverted U-shaped support (22), two elastic connecting belts (23), and two shoulder straps (24). The inverted U-shaped support (22) is positioned directly above the backpack body (21) and has free ends (221) at two ends. The inverted U-shaped support (22) has a plurality of positioning grooves (222). The backpack body (21) has an internal storage space (not shown in the drawings) formed to allow any item that the user needs to carry (e.g., a laptop, documents, an umbrella, a water bottle, stationery, etc.) to be placed inside, thereby increasing the weight of the backpack body (21).

[0013] At this time, one end of the elastic connecting belt (23) is connected to the free end (221) of the inverted U-shaped support (22), and the other end is connected to the backpack body (21), for example, to the side (211); the shoulder strap (24) is positioned to correspond to the left and right sides of the rear (212) of the backpack body (21), and one end of the shoulder strap (24) is connected to the positioning groove (222) of the inverted U-shaped support (22), and the other end is connected to the lower side (213) or the side (211) of the backpack body (21). Accordingly, the shoulder strap (24) is not directly connected to the backpack body (21) to transmit the applied force (F) or gravity (W) of the backpack body (21), but rather the applied force (F) and gravity (W) are transmitted through the inverted U-shaped support (22). Furthermore, the inverted U-shaped support (22) is positioned directly above the backpack body (21) and, in particular, coincides vertically with the center of gravity of the backpack body (21). Therefore, as shown in FIG. 4, when an applied force (F) or gravity (W) is transmitted, the gravity (W) and the force (F) applied by the user are located on substantially the same vertical line (P), thereby reducing the possibility of a couple forming between the two forces. Thus, the user only needs to balance the gravity (W) of the backpack body (21) (including the item), which not only reduces the physical burden on the user but also reduces the impact on the user's health.

[0014] For example, the user may choose to carry the backpack structure (2) by carrying the shoulder strap (24) over the shoulder or by holding the inverted U-shaped support (22). In detail, since the inverted U-shaped support (22) is used for force transmission, it may be made of a material having a certain stiffness and hardness, such as plastic, wood, or metal (e.g., extruded tube). Those skilled in the art will understand without objection that the inverted U-shaped support (22) does not easily undergo elastic or plastic deformation due to external force, so that the relative position of the applied force (F) and gravity (W) does not change; therefore, the present invention can ensure that the force transmission is not absorbed or dispersed due to deformation of the material receiving the force while maintaining the force on the same vertical line (P).

[0015] Additionally, the inverted U-shaped support (22) has a horizontal section (22A) corresponding to the upper side (214) of the backpack body (21), and this horizontal section (22A) is connected to two curved sections (22B) that extend in the opposite direction and are bent and extended corresponding to the side (211) of the backpack body (21). A free end (221) is formed on each of the curved sections (22B). As shown in FIG. 8, in another embodiment, the horizontal section (22A) of the inverted U-shaped support (22) may be combined with the upper side (214) of the backpack body (21) to form an arched bar as a whole, or the horizontal section (22A) and the curved section (22B) may together form an arched bar (not shown in the drawing). Additionally, each of the elastic connecting belts (23) may be a fabric belt such as an elastic belt.

[0016] As illustrated in FIGS. 6 and 7, when the backpack structure (2) of the present invention is used, in one embodiment, the user carries the shoulder strap (24) on their shoulder or holds the inverted U-shaped support (22) in their hand. Since the elastic connecting belt (23) connected to the inverted U-shaped support (22) is connected to the side (211) of the backpack body (21), a cushioning effect can be provided during movement. When the user moves, the relative movement between the user's body and the backpack body (21) is stored as elastic potential energy through the elastic connecting belt (23) and can then be released when the relative height between the user's body and the backpack body (21) changes. Thus, the relative movement between the user's body and the backpack body (21) is balanced, thereby reducing the physical burden that requires additional force to maintain balance in the prior art, and providing an elastic cushioning effect between the user's body and the backpack body (21), thereby preventing fatigue felt by the user.

[0017] As illustrated in FIGS. 5 and 8, a static gap (H) can be maintained between the inverted U-shaped support (22) and the backpack body (21) through a horizontal section (22A) and a curved section (22B) formed corresponding to the upper side (214) and side (211) of the backpack body (21). As illustrated in FIGS. 5 and 6, the backpack body (21) may further include at least one hook lug (215) disposed on the upper side (214) or side (211) of the backpack body (21), the hook lug (215) corresponds to the inverted U-shaped support (22), and the inverted U-shaped support (22) is inserted into the hook lug (215). Each hanging lug (215) may also be an elastic fabric belt (e.g., an elastic belt), which enables a certain elastic change between the inverted U-shaped support (22) and the backpack body (21) in response to relative movement, and the elastic connecting belt (23) helps to provide cushioning for the aforementioned relative movement that occurs when the user moves.

[0018] Referring to FIG. 7, in another embodiment, the user can carry the backpack body (21) by wearing the shoulder strap (24) over their shoulder. At this time, the backpack structure (2) of the present invention is equipped with an elastic connecting belt (23) and a hanging lug (215), both of which are elastic, and when the user moves, the gap between the backpack body (21) and the inverted U-shaped support (22) can be adjusted according to the relative movement state. For example, when the user's back is supported by the backpack body (21) during movement, the shoulder strap (24) and the inverted U-shaped support (22) may tilt slightly forward. At this time, the gap between the backpack body (21) and the inverted U-shaped support (22) is greater than the static gap (H). After the force applied by the user disappears and rebounds to a corresponding position on the backpack body (21), the gap also returns to the corresponding static gap (H).

[0019] In the present invention, one end of each shoulder strap (24) can be connected to one of the positioning grooves (222) by buckling, tight fitting, hooking, or touch fastening. Likewise, the other end of the elastic connecting belt (23) and the other end of the shoulder strap (24) can be connected to the backpack body (21), respectively, by buckling, tight fitting, hooking, or touch fastening. Thus, the inverted U-shaped support (22), elastic connecting belt (23), and shoulder strap (24) of the present invention can be movably separated from the backpack body (21) to facilitate storage, maintenance, repair, and customization, and can meet the individual requirements of the user.

[0020] For example, one end of each shoulder strap (24) may be connected to one of the positioning grooves (222) by buckling. In this embodiment, each positioning groove (222) is formed as a through hole. As shown in FIG. 3, a fixing member (243) may be placed at one end of each shoulder strap (24), and the fixing member (243) may form a positioning hole (243A) corresponding to each positioning groove (222), and at least one fastener (244) passes through the positioning hole (243A) and one of the positioning grooves (222) to make a position. Since the inverted U-shaped support (22) is formed so that the positioning grooves (222) are correspondingly placed on the left and right sides, it is valuable that the user can also adjust the shoulder strap (24) according to their shoulder width and symmetrically connect to two positioning grooves (222) to meet the user's individual requirements. In addition, the fixed member (243) may also have a guide portion (243B) that guides the fixed member (243) to move axially along the inverted U-shaped support (22), so that the user can easily adjust it to fit their body width.

[0021] In another embodiment, the other end of the elastic connecting belt (23) and the other end of the shoulder strap (24) may also be connected to the backpack body (21) by buckling. However, in this embodiment, the buckling is described by securing a push-release buckle (not shown in the drawing) having a snap-fitting portion and a joining portion between them. The snap-fitting portion is secured to the joining portion through at least one elastic button formed on the snap-fitting portion. The user can detach the snap-fitting portion from the joining portion at any time by pressing at least one elastic button.

[0022] At the same time, buckling can also be achieved using a horizontal hollow spring latch. Furthermore, a tight fit can be achieved by securing the shoulder strap (24) or elastic connecting belt (23) with a toothed clip; hooking can be achieved by using a spring hook to insert the shoulder strap (24) or elastic connecting belt (23) and then popping it back up to close the hole; and touch fastening can be achieved by attaching and securing Velcro to each other. Furthermore, other methods known in the technical field that can implement a movable connection to enable the user's individual requirements are not limited thereto.

[0023] In summary, the inverted U-shaped support (22), elastic connecting belt (23), or shoulder strap (24) can be made of different materials to match various styles and colors according to the user's personal preference, and can be movably connected to the backpack body (21) to create a characteristic and unique backpack structure (2) of the present invention.

Claims

Claim 1 A backpack structure comprising: a backpack body; an inverted U-shaped support, wherein the inverted U-shaped support is positioned directly above the backpack body and includes free ends at two ends, and a plurality of positioning grooves are arranged on the inverted U-shaped support; two elastic connecting belts, each having one end connected to one of the free ends of the inverted U-shaped support and the other end connected to the backpack body; and two shoulder straps arranged correspondingly on the rear left and right sides of the backpack body, wherein one end of each shoulder strap is connected to one of the plurality of positioning grooves of the inverted U-shaped support and the other end is movably connected to the lower side or side of the backpack body. Claim 2 A backpack structure according to claim 1, wherein the two shoulder straps are connected to the positioning grooves by buckling, tight fitting, hooking, or touch fastening. Claim 3 A backpack structure according to paragraph 2, wherein one end of each of the two shoulder straps is connected to one of the plurality of positioning grooves by buckling, a fixing member is disposed at one end of each of the two shoulder straps, each fixing member forms a positioning hole corresponding to one of the plurality of positioning grooves, and at least one fastener penetrates the positioning hole and the positioning groove for positioning. Claim 4 A backpack structure according to paragraph 3, wherein each fixed member includes a guide portion that guides the fixed member to move axially along the inverted U-shaped support. Claim 5 A backpack structure according to claim 1, wherein the other end of the two elastic connecting belts and the other end of the two shoulder straps are each connected to the backpack body by buckling, tight fitting, hooking, or touch fastening. Claim 6 A backpack structure according to claim 5, wherein the other end of the two elastic connecting belts and the other end of the two shoulder straps are each connected to the backpack body by buckling, and a push-release buckle having a snap-fitting portion and a joining portion is fixed between the snap-fitting portion and the joining portion, and the snap-fitting portion is fixed to the joining portion through at least one elastic button formed in the snap-fitting portion. Claim 7 A backpack structure according to claim 1, wherein the inverted U-shaped support includes a horizontal section corresponding to the upper side of the backpack body, is connected to two curved sections that extend in opposite directions and are bent and extended corresponding to the side of the backpack body, and the free ends are each formed in the curved sections. Claim 8 In claim 7, the above-described inverted U-shaped support is separated from the backpack body by a static distance, forming a backpack structure. Claim 9 In claim 8, the backpack body further comprises at least one hanging lug disposed on the upper side or side of the backpack body corresponding to the inverted U-shaped support, and the inverted U-shaped support is inserted into the hanging lug, forming a backpack structure. Claim 10 A backpack structure according to claim 1, wherein each of the two elastic connecting belts is a fabric belt.

Images