CN216907163U - Backpack with burden-reducing and correcting functions - Google Patents

Abstract

The utility model provides a backpack with the functions of burden reduction and correction, which comprises: a longitudinal support having a first end opposite the shoulders of the person and a second end opposite the waist of the person; a body independent of the longitudinal support and having a top end opposite the first end and a bottom end opposite the second end, wherein the body is disposed at an incline relative to the longitudinal support; and at least one transverse connector connecting the longitudinal support member and the bag body and at least partially maintaining the inclination of the bag body relative to the longitudinal support member and a first transverse spacing between the first end and the top end and a second transverse spacing between the second end and the bottom end. Part of the weight of the backpack body is shared by the waist or the back, so that the pressure on the shoulder is reduced, the burden reducing effect is achieved, and on the other hand, the backpack body inclines rightwards, so that a backward stretching force is generated on the shoulder, and the effect of correcting the bending of the shoulder and the back is achieved.

Description

Backpack with burden-reducing and correcting functions

Technical Field

The utility model relates to a backpack, in particular to a backpack capable of reducing load of shoulders and correcting deformation of the back of the shoulders.

Background

The body of the conventional backpack is tightly attached to the back of a user, the weight of the backpack is completely applied to the shoulder, the shoulder and the back are injured and uncomfortable after long-term load bearing use, and the spine and the shoulder blades of a serious person deform to cause humpback or shoulder deformation. The burden-reducing backpack can relieve the stress of the shoulder to a certain extent and improve the comfort level of a user.

For example, CN 214855012U provides a force suspension and load reduction multi-functional backpack, which utilizes the elastic bands at the two ends of the shoulder straps and the interrupted elastic band of the three-section elastic connection band to form six elastic points to be simultaneously stretched under force, and pulls the backpack body through the elastic force of the elastic bands to generate suspension feeling, so as to reduce the weight borne by the user, thereby achieving the effect of reducing the load. Similar designs also include CN 214677995U, CN 214547925U, CN 214230252U, CN 213664123U, etc. However, such a design results in the backpack being used in a state of up-and-down movement all the time, and although part of the shoulder pressure can be relieved when moving upwards, the pressure on the shoulder is inevitably increased when moving downwards, the pressure relief effect is limited, and the backpack is difficult to use comfortably.

CN 214630652U discloses an air bag type pressure reducing backpack, which is provided with an air bag pressurizing device, an inflating air bag and other components, the air bag is inflated by a built-in inflator pump, and the effects of buffering, pressure reducing and auxiliary supporting can be achieved by combining the components such as an inner layer flexible waistband and the like, so that the spine of a human body is better protected. However, the bag body-mounted pressurizing device, the inflator, and the inflation line themselves cause additional burden, so that the load reduction effect is not as expected.

CN 112806705A discloses machinery suspension subtracts burden knapsack, the inside mounting panel that is provided with of knapsack, transmission system and energy storage device are connected on the mounting panel simultaneously, through setting up gear and rack between mounting panel and transmission system, make mounting panel and transmission system when the human walking, the in-process relative slip that the backplate reciprocated, the process of sliding up and down of while mounting panel makes energy storage device repeated emergence form to hold the power and release and hold the power, the effort that this in-process formed offsets with the knapsack effect of overcoming the gravity, realize the effect of subtracting the burden to user's shoulder. However, the backpack drive train and the energy storage device themselves create an additional heavy burden, and the mechanical design is complicated and the production and maintenance costs are high.

In view of the above, it is desirable to provide a simple and comfortable backpack to overcome the drawbacks of the prior art, which not only reduces the burden on the shoulder and achieves the burden-reducing effect, but also corrects the shoulder and back.

SUMMERY OF THE UTILITY MODEL

One aspect of the present invention provides a backpack, comprising: a longitudinal support member having a first end opposite a shoulder of a human body, a second end opposite a waist of the human body, and an intermediate portion connecting the first end and the second end; a bag body independent of the longitudinal support and having a top end opposite the first end, a bottom end opposite the second end, and an intermediate portion connecting the top end and the bottom end, wherein the bag body is disposed obliquely with respect to the longitudinal support; and at least one transverse connector connecting the longitudinal support and the hull and at least partially maintaining the inclination of the hull relative to the longitudinal support, and a first transverse spacing between the first end and the top end is greater than a second transverse spacing between the second end and the bottom end.

In some embodiments, the angle of inclination (i.e. the angle between the longitudinal direction of the bag body and the longitudinal direction of the longitudinal support) can vary. In some embodiments, the angle of inclination can vary at equal intervals, for example by 5 degrees. In some embodiments, the angle of inclination may vary from greater than 0 degrees to less than 90 degrees. In some embodiments, the angle of the inclination may vary between 15 and 45 degrees. In some embodiments, the angle of the inclination may vary between 15 and 30 degrees. In some embodiments, the angle of inclination may be selected from 5 degrees, 15 degrees, 30 degrees, 45 degrees, and 60 degrees.

In some embodiments, the body is switchable between a tilted position and a non-tilted position. For example, in the non-tilted position, the bodice is longitudinally parallel to and conforms to the longitudinal support. For example, in the tilted position, the angle of tilt may be fixed (e.g., 30 degrees) or may vary (e.g., in the manner described above).

In some embodiments, the transverse connection member has a first connection portion connected to the longitudinal support member, a second connection portion connected to the bag body, and an intermediate connection portion connecting the first connection portion and the second connection portion, and a distance between the first connection portion and the second connection portion is gradually decreased from the first end portion to the second end portion of the longitudinal support member in the longitudinal direction. In some embodiments, the intermediate connection is located at an end of the first connection and the second connection. In some embodiments, the intermediate connection is located in the middle of the first and second connections.

In some embodiments, the backpack further comprises a support independent of the lateral connectors, the support extending from the longitudinal support and at least partially supporting the pack body. In some embodiments, the angle of the support relative to the longitudinal support varies. In some embodiments, the angle of the support relative to the longitudinal support is fixed.

In some embodiments, the support is disposed between a middle portion of the longitudinal support and a middle portion of the hull, and the support extends laterally a first distance from the longitudinal support such that the second lateral spacing increases.

In some embodiments, the bolster is connected between the second end of the longitudinal support member and the bottom end of the pack body. In some embodiments, the support extends transversely from the second end of the longitudinal support, and the bodice is disposed on the support.

In some embodiments, the support of the backpack is a resilient or cushioning element, such as a spring or bladder.

In some embodiments, the hull is arranged on the support by a first intermediate connector having a first portion connected to the hull and a second portion connected to the support, the angle between the first portion and the second portion being variable.

In some embodiments, the ladle body is disposed on the support member by a first intermediate connector, the first intermediate connector is wedge-shaped, and an inclined surface of the wedge-shape contacts a bottom end of the ladle body. In some embodiments, the angle between the inclined surface of the wedge and the support can vary.

In some embodiments, the transverse connectors are formed from a filler material. In some embodiments, the transverse connectors are formed of a filler material and the bottom end of the hull is also filled with a wedge-shaped filler material to maintain the inclination of the hull in cooperation with the transverse connectors.

In some embodiments, the lateral width of the lateral connectors is adjustable at predetermined intervals.

In some embodiments, the transverse link is an at least partially rigid link. For example, the transverse connectors include, but are not limited to, links, hinges, gussets, air bags, etc., which may or may not be adjustable in transverse width.

In some embodiments, the lateral connectors are a textile fabric surrounding and connecting the bodice to the longitudinal supports. For example, the body wrap may be sewn directly to the textile fabric surrounding the transverse connectors by means of textile threads.

In some embodiments, one or more or all of the longitudinal support, the transverse connection, and the support are concealed or one or more or all of the longitudinal support, the transverse connection, and the support are exposed. In some embodiments, the transverse connection is concealed. In some embodiments, the backpack includes a zipper between the longitudinal support and the pack body, the zipper being zipped and unzipped to cause concealment and exposure of the transverse connectors.

In some embodiments, the interior space of the bodice is divided longitudinally into at least two sub-spaces by at least one rigid sheet. In some embodiments, the sides of the body have at least one rigid sheet lining to maintain the rigidity of the body.

In some embodiments, the backpack has straps connected to the longitudinal supports and straps connecting the pack body and the straps, the straps being connectable to the straps at different positions.

The backpack provided by the utility model is provided with the independent body and the longitudinal supporting piece, the top end of the body inclines relative to the longitudinal supporting piece in the direction far away from the longitudinal supporting piece, and the bottom end of the body is abutted against the longitudinal supporting piece or is connected to the longitudinal supporting piece through the supporting piece. The backpack can be used as a schoolbag, a traveling bag, a climbing bag and other scenes.

Drawings

The utility model will be described in more detail with reference to the accompanying drawings. It should be noted that the illustrated embodiments are merely representative examples of the embodiments of the present invention, and in order to more clearly illustrate the details of the exemplary embodiments, the elements in the drawings are not drawn to scale with actual dimensions, the number of actual elements may vary, the relative positional relationships of the actual elements substantially conform to the illustrations, and some elements are not shown. Where there are multiple embodiments, where one or more features that have been described in a previous embodiment may also be applicable to another embodiment, for the sake of brevity these repeatedly applicable features will not be described again in the following embodiment or embodiments, which should be understood as having described these repeatedly applicable features unless otherwise stated. One skilled in the art will recognize, upon reading the present disclosure, that one or more features shown in one drawing may be combined with one or more features in another drawing to create one or more alternative embodiments, not specifically shown in the drawings, which also form a part of the present disclosure.

Fig. 1A schematically shows a side view and fig. 1B schematically shows a perspective view of a backpack according to one embodiment of the utility model.

Figure 2 schematically illustrates the skeletal structure of a backpack according to another embodiment of the present invention.

Figure 3 schematically illustrates the skeletal structure of a backpack according to another embodiment of the present invention.

Figure 4 schematically illustrates the skeletal structure of a backpack according to another embodiment of the present invention.

Figure 5 schematically illustrates the skeletal structure of a backpack according to another embodiment of the present invention.

Fig. 6A schematically shows a partial perspective view of the support in a backpack according to another embodiment of the utility model, and fig. 6B schematically shows a side view of the support.

Figure 7A schematically shows a side view of a backpack according to one embodiment of the present invention and figure 7B schematically shows a perspective view (7B) of the backpack.

Figure 8 is a schematic view of a structural skeleton of a backpack according to another embodiment of the present invention.

Figure 9 shows a schematic view of the structural skeleton of a backpack according to another embodiment of the present invention.

Figure 10 shows a skeletal structure of a backpack according to another embodiment of the present invention.

Figure 11 shows a skeletal structure of a backpack according to another embodiment of the present invention.

Figure 12 shows a skeletal structure of a backpack according to another embodiment of the present invention.

Figure 13 shows a skeletal structure of a backpack according to another embodiment of the present invention.

Fig. 14A schematically shows a side view and fig. 14B schematically shows a perspective view of a backpack according to another embodiment of the utility model.

Fig. 15A schematically shows a perspective view of a backpack according to another embodiment of the utility model, and fig. 15B schematically shows a side view of the backpack.

Fig. 16A schematically shows a perspective view of a backpack according to another embodiment of the utility model, and fig. 16B schematically shows a side view of the backpack.

Figure 17A schematically shows a side view and figure 17B schematically shows a perspective view of a backpack according to another embodiment of the utility model.

Figure 18 schematically illustrates a side view of a backpack according to another embodiment of the present invention.

Figure 19 schematically illustrates a side view of a backpack according to another embodiment of the present invention.

Figure 20 schematically illustrates a side view of a backpack according to another embodiment of the utility model.

Figure 21 shows a force analysis diagram of the backpack of the present invention.

Detailed Description

Exemplary embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is to be understood that the scope of the present invention is not limited to the disclosed embodiments, but that modifications and variations may be made to the exemplary embodiments without departing from the inventive concept, which will be apparent to those skilled in the art upon reading the present disclosure and which are intended to be included within the scope of the appended claims.

Fig. 1A and 1B schematically show a side view and a perspective view, respectively, of a backpack 100 according to one embodiment of the present invention. The backpack 100 includes longitudinal supports 110, a body 120, and transverse connectors 130. The longitudinal support member 110 has a first end 112 opposite the shoulders of the human body, a second end 116 opposite the waist of the human body, and a middle portion 114 connecting the first end 112 and the second end 116. The longitudinal support member 110 is generally plate-shaped and is made of a hard material or has a hard skeleton so that it can bear a part of the weight of the bag body 120 without being deformed. The hard material or skeleton may be, for example, a lightweight plastic, which may be wrapped or exposed by a textile.

The body 120 is present independently of the longitudinal support 110 for receiving the article. The bag body 120 is generally rectangular, but may have any other suitable three-dimensional shape. The body 120 has a top end 122 opposite the first end 112 of the longitudinal support 110, a bottom end 126 opposite the second end 116 of the longitudinal support 110, and a middle portion 124 connecting the top end 122 and the bottom end 126. The bag body 120 is disposed obliquely with respect to the longitudinal support member 110.

The transverse connecting member 130 connects the longitudinal support member 110 and the bag body 120 and maintains the inclined arrangement of the bag body 120 with respect to the longitudinal support member 110. The first lateral spacing w1 between the first end 112 and the top end 122 is greater than the second lateral spacing w2 between the second end 116 and the bottom end 126, such that the body 120 is inclined to the right as viewed with respect to the longitudinal support 110.

In this embodiment, the transverse link 130 has a first link portion 132 connected to the longitudinal support 110, a second link portion 134 connected to the bag body 120, and an intermediate link portion 136 connecting the first link portion 132 and the second link portion 134. To maintain the inclined arrangement of the bag body 120 relative to the longitudinal support 110, the spacing between the first connecting portion 132 and the second connecting portion 134 gradually decreases in the longitudinal direction (i.e., in the length direction of the longitudinal support 110) from the first end 112 to the second end 116 of the longitudinal support 110. It is contemplated by those skilled in the art that the cross link 130 is not limited to the illustrated configuration of this embodiment, for example, the intermediate link 136 of the cross link 130 may be located intermediate the first link 132 and the second link 134 rather than at the ends as shown. The cross-links 130 are generally rigid, for example, constructed of a hard material (e.g., plastic) to fix the angle of inclination of the body 120 relative to the longitudinal supports 110.

The angle of inclination may vary, for example, between greater than 0 degrees to less than 90 degrees, and may for example be 15 to 45 degrees, or 15 to 30 degrees, or 30 degrees. The angle of inclination depends on the arrangement of the transverse link 130, in particular the angle of its second connecting portion 134 relative to its first connecting portion 132. The first lateral spacing w1 and the second lateral spacing w2 depend on the lateral extent of the intermediate connecting portion 136 of the lateral link 130 and the angle of inclination described above. For example, the first lateral separation w1 may have a value of 1 to 20 cm and the second lateral separation w2 may have a value of 0 to 15 cm. In this embodiment, the tilt angle may be set to 30 degrees, w1 may be set to a value of 10 cm, and w2 may be set to a value of 5 cm. The person skilled in the art can freely adjust the tilt angle w1, w2 as required and is not limited to the above specific examples.

The backpack 100 also includes a back strap 102 (only a portion of which is shown) connected to the longitudinal support 110 and cushioning pads 104 and 106 attached to the longitudinal support 110 to provide cushioning for the back and waist, respectively, that the backpack 100 creates gravitational pressure on both. One or both of the cushions 104 and 106 may be replaced by, for example, fabric wrapped around the longitudinal support 110, or may be further wrapped by fabric.

Figure 2 schematically illustrates the skeletal structure of a backpack 200 according to another embodiment of the present invention. The backpack 200 includes longitudinal supports 210, a body 220, and transverse connectors 230. The backpack 200 further includes a pair of straps 202, each strap 202 having an adjustment member 208 for adjusting its length, the structure of the adjustment members 208 being well known in the art and not described in detail. The longitudinal support 210 includes a first end 212, a second end 216, and a middle portion 214 connecting the two. In an actual product, the longitudinal support member 210 may be wrapped with fabric and/or attached with a cushion pad. The body 220 includes a top end 222 and a bottom end 226 and is disposed at an angle relative to the longitudinal support member 210. The transverse connector 230 connects the first end 212 of the longitudinal support member 210 and the top end 222 of the body 220. In this embodiment, the transverse links 230 may be provided in pairs and may be constructed of a hard material. The transverse connection members 230 may in this embodiment be arranged to be detachably connected with the longitudinal support members 210 or the body wrap 200.

In this embodiment, the backpack 200 further comprises a support 240 independent of the lateral connector 230. The support member 240 extends from the second end 216 of the longitudinal support member 210 to the bottom end 226 of the body 220 (e.g., a mid-section thereof) to partially support the weight of the body 220. The retainer 240 is composed of a hard material, and the hard material may have elasticity. The support member 240 may include a notch 242 so that the body 220 may be removably coupled to the longitudinal support member 210 by elastically deforming the material to disengage the second end portion 216 under an external force. While the transverse link 230 may also be detachably connected to the longitudinal support member 210 or the bag body 200, the bag body 220 as a whole may be separated from the longitudinal support member 210 and may be replaced or cleaned. In this embodiment, the retainer 240 may be disposed in a non-rotatable connection relative to the second end 216.

Figure 3 schematically illustrates the skeletal structure of a backpack 300 according to another embodiment of the present invention. The backpack 300 has a substantially similar structure to the backpack 200, but the cross connectors 330 and the bearers 340 have different structures. Specifically, the transverse connector 330 connects the first end 312 of the longitudinal support 310 with the middle portion 324 of the hull 320 and has an adjustable length. The length adjustment may be accomplished, for example, by an adjustment element 338, which adjustment element 338 may be in any form known in the art. In this embodiment, adjustment member 338 may be the same adjustment catch as adjustment member 308 of back belt 302. The adjusting element 338 is made of a hard material, so that the bag body 320 cannot be freely swung in the transverse direction.

The bearing 340 is connected to the second end 316 of the longitudinal support 310, and the second end 316 penetrates the bearing 340 such that the bearing 340 can rotate about the second end 316. The tightness of the engagement of the retainer 340 with the second end 316 may be reasonably designed such that the retainer 340 can only rotate about the second end 316 under an external force. This can be achieved by properly setting the diameter of the second end portion and the diameter of the corresponding through hole of the support 340. When the support 340 can rotate around the second end 316 (i.e. the included angle of the support 340 with respect to the longitudinal support changes), the inclination angle of the bag body 320 with respect to the longitudinal support 310 changes. Accordingly, the length of the cross-link 330 may be adjusted to accommodate the change in the angle of inclination.

Fig. 4 shows a skeletal structure of a backpack 400 according to another embodiment of the present invention. The backpack 400 includes longitudinal supports 410, a body 420, and adjustable length transverse connectors 430. The support 440 is disposed between the middle portion 414 of the longitudinal support member 410 and the middle portion 424 of the hull 420. The supporter 440 includes a first extension 442 connected to the longitudinal support 410, a second extension 444 connected to the bag body 420, and a rotation shaft 446 connecting the first extension 442 and the second extension 444, so that the first extension 442 and the second extension 444 can rotate relative to each other.

The first extension 442 extends a first distance in the transverse direction from the longitudinal support, forming the transverse length of the first extension 442. The transverse length is such that when the longitudinal length of the body 420 is large enough to easily reach the user's hips (such as in a hiking or mountain-climbing backpack scenario), the bottom end 426 of the body 420 can be spaced from the user's hips without contact to improve user comfort. In this embodiment, the first extension 442 extends a distance such that the second lateral spacing between the second end 416 of the longitudinal support 410 to the bottom end 426 of the bodice 420 increases, but the bodice 420 remains inclined relative to the longitudinal support 410. For example, the first extension 442 may extend by a distance of 10 to 30 cm, or more, or less, which may be reasonably determined according to the length of the bodice 420 in the longitudinal direction.

Figure 5 illustrates the skeletal structure of a backpack 500 according to another embodiment of the present invention. The backpack 500 includes longitudinal support members 510, a body 520, adjustable length lateral connectors 530, and support members 540. A retainer 540 is disposed at the second end 516 of the longitudinal support member 510 and extends laterally therefrom to form a retainer platform 548. In this embodiment, the support platform 548 may be a flat plate that supports the body 520 across the bottom end 526 of the body 520. The body 520 may be fixedly or removably attached to the holding platform 548 by one or more fasteners 545.

The holding platform 548 is capable of pivoting about the second end 516 to enable the angle of inclination of the body 520 relative to the longitudinal support member 510 to be adjusted. In this embodiment, the holding platform 548 is angled more than 90 degrees from the longitudinal support member 510 so that the bag body is always tilted to the right as shown. The holder 540 further includes fasteners 546 (e.g., fastening bolts) that can secure the tilt angle, and when the proper tilt angle is determined, the angle between the holding platform 548 and the longitudinal support member 510 is secured by tightening the fasteners 546. When the tilt angle is to be adjusted, the fastener 546 is loosened to adjust the angle of the rotating holding platform 548 relative to the longitudinal support member 510.

An alternative to the embodiment of FIG. 5 is shown in FIGS. 6A and 6B, in which FIG. 6A shows a partial perspective view and FIG. 6B shows a side view of the retainer 540. Unlike the bearers 540, the bearers 640 are fixedly attached to the second ends 616 of the longitudinal supports 610 so as not to rotate relative thereto. The support members 640 form a support platform 648 for supporting the bag body 620. In this embodiment, the bag body 620 is attached to the support platform 648 by a first intermediate attachment 650. The first intermediate linkage 650 has a first portion 654 attached to the bottom end 626 of the bag body 620 and a second portion 656 attached to the support platform 648. The angle between the first portion 654 and the second portion 656 can be varied by rotation of the shaft 652. In this embodiment, the first intermediate connector 650 is provided with at least one projection 658 interposed between the first portion 654 and the second portion 656 to maintain the spacing therebetween, thereby keeping the bodice 620 always tilted with respect to the longitudinal support 610. In this embodiment, the projection 658 is shown disposed on the second portion 656, but those skilled in the art will appreciate that the projection 658 may be disposed on the first portion 654 for the same purpose.

Figures 7A and 7B schematically show side and perspective views, respectively, of a skeletal structure of a backpack 700 according to another embodiment of the present invention. The backpack 700 includes a longitudinal support member 710, a body 720, and an adjustable length lateral connector 730. The backpack 700 further includes a retainer 740 fixedly attached to the second end 716 of the longitudinal support member 710 and non-rotatable with respect to the longitudinal support member 710. The bag body 720 is disposed on the supporting member 740 by a first intermediate connector 750. In this embodiment, the first intermediate connector 750 is wedge-shaped with a beveled surface 754 that contacts the bottom end 726 of the bodice 720. The body 720 may be fixedly or removably attached to the ramp 754 by one or more fasteners 745.

The first intermediate link 750 has a slide groove 752, the fastening member 746 is disposed in the slide groove 752, and the slide groove 752 is movable relative to the fastening member 746, so that the inclination angle of the inclined surface 754 can be adjusted, and thus the inclination angle of the bag body 720 relative to the longitudinal support 710 can be varied. When the proper angle of inclination is determined, the angle between the ramp 754 and the longitudinal support member 710 is fixed by tightening the fastener 746. When the angle of inclination is to be adjusted, loosening the fastener 746 adjusts to adjust the angle between the ramp 754 and the longitudinal support 710.

Figure 8 is a schematic diagram of a structural skeleton of a backpack 800 according to another embodiment of the present invention. The backpack 800 includes longitudinal support members 810, a body 820, transverse connectors 830, and support members 840. The support member 840 is fixedly attached to the second end 816 of the longitudinal support member 810 and is generally wedge-shaped, with the ramp 848 supporting the body 820, and the body 820 may be fixedly or removably attached to the ramp 848 by fasteners 845. In this embodiment, the angle of inclination of the body 820 with respect to the longitudinal support member 810 is set to a fixed angle and is not adjustable, and thus the lateral connection member 830 may be set to a fixed length.

Figure 9 shows a schematic view of the structural skeleton of a backpack 900 according to another embodiment of the present invention. The backpack 900 includes longitudinal support members 910, a body 920, lateral connectors 930, and support members 940. The backpack 900 has substantially the same structure as the backpack 800 shown in fig. 8, but the structure of the lateral connectors 930 is different. In this embodiment, the transverse connectors 930 connect the longitudinal support member 910 and the body 920 throughout the longitudinal direction thereof, and have a shape (shown as a substantially triangular shape) that accommodates the space formed between the longitudinal support member 910 and the body 920. The triangular cross-links 930 may not fill the space formed between the longitudinal support member 910 and the bag body 920, but may be only plate-shaped and may be plural.

A through hole 936 may be provided at the center of the lateral connector 930 to facilitate air circulation. The shape and location of the through holes 936 are not limited to those shown, and the through holes 936 may be replaced with other shapes, such as a plurality of smaller holes distributed on the lateral links 930. Various other possible forms of air circulation are contemplated by those skilled in the art. In other embodiments, the through hole 936 may not be present.

Fig. 10 shows a skeletal structure of a backpack 1000 according to another embodiment of the present invention. Backpack 1000 includes longitudinal support members 1010, a body 1020, transverse connecting members 1030, and support members 1040, which are of similar construction to backpack 700 shown in figure 7, but differ in their transverse connecting members. In this embodiment, the transverse connecting member 1030 connects the longitudinal support member 1010 and the bag body 1020 in the entire longitudinal direction thereof, and has a shape (shown as a substantially triangular shape) that accommodates a space formed between the longitudinal support member 1010 and the bag body 1020. The transverse connector 1030 includes a first portion 1032 connected to the longitudinal support 1010 and a second portion 1034 connected to the body 1020. The transverse connector 1030 also includes an axis of rotation 1036 connecting the first portion 1032 and the second portion 1034. The first and second portions 1032, 1034 may be rotated about the rotation axis 1036, respectively, and thus the width of the transverse connection 1030 in the transverse direction may be adjusted.

The transverse connector 1030 may not fill the space formed between the longitudinal support 1010 and the bag body 1020, but may be merely sheet-shaped and may be plural. In this embodiment, there are two lateral support members 1030, namely a lateral support member 1030a and a lateral support member 1030b, respectively, near both sides of the bag body 1020. When the angle of the support 1040 relative to the longitudinal support 1010 is adjusted such that the angle of inclination of the body 1020 relative to the longitudinal support 1010 changes, the transverse connector 1030 adaptively changes its transverse length through rotation of the first and second portions 1032, 1034 relative to the axis of rotation 1036.

The rotation of the first portion 1032 and the second portion 1034 relative to the rotation axis 1036 may be set to occur only by an external force, and thus the trunk 1020 may not swing freely in the lateral direction. In actual products, the cross connection 1030 may be in the form of a hinge or hinge.

Fig. 11 shows a skeletal structure of a backpack 1100 according to another embodiment of the present invention. Backpack 1100 includes longitudinal support members 1110, a body 1120, and transverse connectors 1130. The body 1120 may be directly attached (e.g., sewn with woven threads) to the second end 1116 of the longitudinal support member 1110 by a fabric. The transverse connector 1130 may be in the form of a transverse connector 1030 or other adjustable transverse width form (e.g., a resilient connector). The transverse connector 1130 is enclosed by a zipper 1138 along the periphery of the longitudinal support 1110 and the bag body 1120. When the zippers 1138 are fully opened, the bag body 1120 tilts with respect to the longitudinal support member 1110 due to the force (e.g., elastic repulsion) of the middle connecting member 1130, and when the zippers 1138 are fully closed, the force of the transverse connecting member 1130 is offset by the zippers 1138, so that the bag body 1120 is in a state of being parallel to the longitudinal support member 1110 and clinging to the longitudinal support member 1110, and thus the bag body 1120 is in a non-tilted position at this time. This design supports the body 1120 to be easily switched between a tilted position and a non-tilted position.

Fig. 12 shows a skeletal structure of a backpack 1200 according to another embodiment of the present invention. Backpack 1200 includes longitudinal support members 1210, a body 1220, transverse connectors 1230, and support members 1240, which are of similar construction to backpack 700 shown in figure 7, but differ in the transverse connectors. In this embodiment, the lateral connecting member 1230 connects the longitudinal support member 1210 and the bodice 1220 in the entire longitudinal direction thereof, and has a shape (shown as a substantially triangular shape in the drawing) that accommodates a space formed between the longitudinal support member 1210 and the bodice 1220. The width of the lateral link 1230 in the lateral direction can be adjusted, for example, in the same manner as shown in fig. 10.

In this embodiment, the transverse link 1230 is surrounded by a zipper 1238, and when the zipper 1238 is fully unzipped, the support 1240 and the first intermediate link 1250 cause the body 1220 to tilt relative to the longitudinal support member 1210, and when the zipper 1238 is fully zipped, the first intermediate link 1250 can be adjusted to be parallel to the support 1240, thereby causing the body 1220 to be in a state of being parallel to the longitudinal support member 1210 and abutting the longitudinal support member 1210, so that the body 1220 is now in a non-tilted position. In this embodiment, the supporter 1240 and the first intermediate connector 1250 may not be exposed to the outside by being wrapped with fabric.

Figure 13 shows a skeletal structure of a backpack 1300 according to another embodiment of the present invention. Backpack 1300 includes longitudinal support members 1310, a body 1320, transverse connectors 1330, and support members 1340, which are of similar construction to backpack 700 shown in figure 7, but differ in the transverse connectors. In this embodiment, the transverse connector 1330 connects the middle portion 1314 of the longitudinal support member 1310 with the middle portion 1324 of the body 1320. The width of the transverse link 1330 in the transverse direction may be adjustable. Specifically, the lateral connector 1330 is a rack in this embodiment, and has a fixing portion 1336 provided on the body 1320, and the rack 1330 may penetrate through and slide in the fixing portion 1336, so that the lateral width of the lateral connector 1330 can be adjusted by a fixed distance. Thus, the angle of inclination of the envelope 1320 with respect to the longitudinal support 1310 may vary at a fixed pitch (e.g., 5 degrees or 10 degrees). When adjusting the lateral width of the rack 1330, the first intermediate link 1350 is adapted by changing its slope in a similar manner as previously described. The material of the transverse connector 1330 may be a rigid material, such as a rigid plastic or a lightweight metal (e.g., aluminum or aluminum alloy).

Figures 14A and 14B schematically show a side view and a perspective view, respectively, of a backpack 1400 according to another embodiment of the present invention. Backpack 1400 includes longitudinal support members 1410, a body 1420 (shown in phantom), transverse connecting members 1430, and support members 1440. The body 1420 is disposed in an inclined manner with respect to the longitudinal support 1410. In this embodiment, the envelope 1420 and the space between it and the longitudinal support 1410 are wrapped with fabric, and the space is filled with a filling material (e.g., sponge) to form the transverse links 1430. Similarly, the space at the bottom end of the bag body is filled with a filling material (e.g., sponge) to form the retainer 1440. Thus, the transverse links 1430 are shown in triangular cross-section and the bearers 1440 are shown in wedge-shaped cross-section to maintain the inclination of the envelope 1420 relative to the longitudinal supports 1410.

Fig. 15A and 15B schematically show a perspective view and a side view, respectively, of a backpack 1500 according to another embodiment of the utility model. Backpack 1500 includes longitudinal support members 1510, a body 1520, and transverse connectors 1530. The body 1520 may be sewn to the second end 1516 of the longitudinal support 1510 by a woven thread and disposed obliquely with respect to the longitudinal support 1510. The transverse link 1530 includes a slide slot 1532 disposed on the longitudinal support 1510 and a fastener 1538 coupled to the body 1520, the fastener 1538 being slidable within the slide slot. The body 1520 may be loosened and secured by tightening or loosening the fasteners 1538 to adjust the angle of inclination of the body 1520 relative to the longitudinal supports 1510.

Backpack 1500 also includes a pair of straps 1502 and a pair of straps 1560 connecting the top end of body 1520 to straps 1502. The strap 1560 is provided with a plurality of spaced holes 1562 and the strap 1502 is provided with securing pegs 1503 which can be passed through the holes 1562 to releasably connect the strap 1560 to the strap 1502. A plurality of holes 1562 may allow the strap 1560 to be attached to the back belt 1502 at different locations to accommodate adjustment of the cross-link 1530. The number of the lateral attachment members 1530 may be two, one on each side of the body 1520.

It is contemplated by those skilled in the art that the structure of the transverse link 1530 is not limited to that shown. For example, transverse link 1530 could be a transverse link in other embodiments of the present invention, such as any of the transverse links in the embodiments shown in fig. 8-13.

Figures 16A and 16B schematically show a perspective view and a side view, respectively, of a backpack 1600 according to another embodiment of the utility model. Backpack 1600 includes longitudinal supports 1610, a body 1620, and lateral connectors 1630. The body 1620 may be sewn to the second end 1616 of the longitudinal support 1610 by woven threads and may be disposed obliquely with respect to the longitudinal support 1610. A transverse connecting member 1630 connects the top end 1622 of the body 1620 with the first end 1612 of the longitudinal support 1610. In this embodiment, the lateral connecting member 1630 is fixedly attached to the longitudinal support 1610 with a fastener 1636. Transverse connecting member 1630 includes at least two through holes 1634 and 1638, and securing peg 1632 disposed at top end 1622 of body 1620 may pass through one of the two through holes 1634 and 1638, thereby connecting body 1620 with longitudinal support 1610 at first end 1612 and top end 1612.

When the securing pegs 1632 are passed through the through holes 1638, the body 1620 is tilted relative to the longitudinal supports 1610, and the tilt is maintained by the transverse connecting members 1630 and the body bottom suture. When the securing peg 1632 is inserted through the through hole 1634, the body 1620 is parallel to and flush with the longitudinal support 1610, and thus is in a non-tilted position. It is contemplated that the adjustment of the tilt angle will be more varied by providing more through holes in the lateral support 1630.

Figures 17A and 17B schematically show side and perspective views of a backpack 1700 according to another embodiment of the present invention. Backpack 1700 includes longitudinal supports 1710, a body 1720, and transverse connectors 1730. The bag body 1720 is sewn to the second end 1716 of the longitudinal support 1710, for example, with a woven thread, and is disposed obliquely with respect to the longitudinal support 1710. The longitudinal support 1710 is provided in this embodiment with an ergonomic shape to better fit the natural curvature of the human spine. Further, longitudinal supports 1710 may have cushions 1713 and 1715 attached at their first and second ends 1712 and 1716, respectively, to increase the comfort of the backpack. Alternatively, the longitudinal support member 1710 may be fabric-wrapped and filled with an elastic filler material, but remain ergonomically shaped overall after the fabric-wrapping and filling.

Figure 18 schematically shows a side view of a backpack 1800 according to another embodiment of the present invention. The backpack 1800 includes a longitudinal support 1810, a body 1820, and a lateral connector 1830. The body 1820 is disposed at an angle relative to the longitudinal support 1810. The body 1820 includes a top end 1822, a bottom end 1826, and a middle portion 1824. In this embodiment, the interior space of the body 1820 is divided longitudinally into three separate subspaces by two pieces of hard material 1828. The body 1820 may also include two additional pieces of rigid material 1827 located around the perimeter of the interior space to provide sufficient rigidity to the body without deformation. The hard materials 1827 and 1828 extend in the entire longitudinal direction of the body 1820.

The presence of the hard material 1828 not only serves as a space divider, but more importantly, ensures that when the body 1820 is used to hold more articles, the center of gravity of the articles is oriented in the longitudinal direction of the hard material 1828 (or 1827), i.e., in the same direction as the inclination of the body relative to the longitudinal support 1810, so as to ensure that the weight reduction and correction effects caused by the inclined arrangement of the body are not offset by the center of gravity of the articles.

Figure 19 shows a side view of a backpack 1900 according to another embodiment of the present invention. Backpack 1900 includes longitudinal support members 1910, a body 1920, and transverse connectors 1930. In this embodiment, backpack 1900 also includes a retainer 1940 that connects intermediate portion 1924 of torso 1920 and intermediate portion 1914 of longitudinal support 1910. The support 1940 is in this embodiment a resilient element, such as a spring or bladder, which on the one hand provides at least partial support for the chassis 1920 and on the other hand provides cushioning for the chassis 1920 against the longitudinal support 1910 (and thus against the user's lower back). This cushioning effect, together with cushioning elements (e.g., cushions) provided by the longitudinal support 1910 on the side near the user's low back, enhances user comfort.

Figure 20 shows a side view of a backpack 2000 according to another embodiment of the present invention. Backpack 2000 includes longitudinal support members 2010, a body 2020, and transverse connectors 2030. Backpack 2000 also includes a bolster 2040 that connects a medial portion 2024 of body 2020 and a medial portion 2014 of longitudinal supports 2010. The support 2040 may be attached to the hull 2020 by fasteners 2042. In this embodiment, the support 2040 rotates about the rotation shaft 2046 with respect to the longitudinal support 2010, so that the inclination angle of the bag body 2020 with respect to the longitudinal support 2010 can be adjusted. In this embodiment, the angle between the support 2040 and the longitudinal support 2010 is acute and is the same as the angle of inclination of the body 2020 and the longitudinal support 2010.

Figure 21 shows a force analysis of a backpack according to one embodiment of the present invention. As shown, the bag body is balanced by the combination of gravity G, the pulling force F9 of the cross-link, and the supporting force F10 of the support. The pulling force F9 of the transverse link can be decomposed into a component F5 in the direction of gravity and a component F6 in the horizontal direction, and the supporting force F10 of the bearer can be decomposed into a component F7 in the direction of gravity and a component F8 in the horizontal direction. In one aspect, according to the principles of mechanical balance, F6 = F8, and G = F5 + F7. In the use of the backpack, the supporting force F10 of the support member is partially provided by the back or waist of the user, so that the shoulder force (reaction force of the component force F5) is reduced by the component force F7 canceling at least a part of the shoulder force, thereby reducing the shoulder load. On the other hand, through static balance analysis, a balance moment is obtained for the point A to obtain a balance equation: f6 × L4= G × L3, i.e., F6 = G × tan α, as α is larger, F6 is larger, thus having a greater stretching correction effect on the user's shoulders.

The foregoing is representative of embodiments of the present invention and is provided for illustrative purposes only. One or more technical features used in one embodiment of the present invention may be added to another embodiment to form an improved or alternative embodiment without departing from the purpose of the embodiments. Likewise, one or more features used in one embodiment may be omitted or substituted without departing from the purpose of the embodiment, to form alternative or simplified embodiments. Furthermore, one or more features used in one embodiment may be combined with one or more features of another embodiment to form an improved or alternative embodiment without departing from the purpose of the embodiments. The present invention is intended to embrace all the above improvements, alternatives, and simplifications.

Claims (21)

1. A backpack, comprising:

a longitudinal support member having a first end opposite a shoulder of a human body, a second end opposite a waist of the human body, and an intermediate portion connecting the first end and the second end;

A bag body independent of the longitudinal support and having a top end opposite the first end, a bottom end opposite the second end, and an intermediate portion connecting the top end and the bottom end, wherein the bag body is disposed obliquely with respect to the longitudinal support; and

at least one transverse connector connecting the longitudinal support with the pack body and at least partially maintaining the inclination of the pack body relative to the longitudinal support, and

a first lateral spacing between the first end and the top end is greater than a second lateral spacing between the second end and the bottom end.

2. The backpack of claim 1, wherein the transverse connector has a first connecting portion connected to the longitudinal support, a second connecting portion connected to the body, and an intermediate connecting portion connecting the first and second connecting portions, wherein a distance between the first and second connecting portions decreases in a longitudinal direction from the first end to the second end of the longitudinal support.

3. The backpack of claim 1, further comprising a support member independent of the cross-link member, the support member extending from the longitudinal support member and at least partially supporting the pack body.

4. The backpack of claim 3, wherein the angle of the bearers relative to the longitudinal support members varies.

5. The backpack of claim 3, wherein the receiver is disposed between a medial portion of the longitudinal support member and a medial portion of the body, and the receiver extends laterally a first distance from the longitudinal support member such that the second lateral spacing is increased.

6. The backpack of claim 3, wherein the receiver is connected between the second end of the longitudinal support member and the bottom end of the pack body.

7. The backpack of claim 3, wherein the receiver extends laterally from the second end of the longitudinal support member and the body is disposed on the receiver.

8. The backpack of claim 7, wherein the pack body is disposed on the support by a first intermediate connector having a first portion connected to the pack body and a second portion connected to the support, the angle between the first portion and the second portion being variable.

9. The backpack of claim 7, wherein the pack body is disposed on the support member by a first intermediate connector, the first intermediate connector being wedge-shaped, the inclined surface of the wedge contacting a bottom end of the pack body.

10. The backpack of claim 9, wherein an angle between the tapered ramp and the support member can be varied.

11. The backpack of claim 1, wherein the lateral connectors are formed of a filler material.

12. The backpack of claim 1, wherein the lateral width of the lateral connectors is adjustable at predetermined intervals.

13. The backpack of claim 1, wherein the transverse connectors are at least partially rigid connectors.

14. The backpack of claim 1, wherein the lateral connectors are textile fabrics that surround and connect the body and the longitudinal supports.

15. The backpack of claim 3, wherein one or more or all of the longitudinal supports, the transverse connectors, and the bearers are concealed or exposed.

16. The backpack of claim 15, wherein the backpack includes a zipper between the longitudinal support and the pack body, wherein the zipping and unzipping of the zipper results in the concealment and exposure of the lateral connectors.

17. The backpack of claim 1, wherein the pack body is switchable between a tilted position and a non-tilted position.

18. The backpack of claim 1, wherein the angle of inclination is variable.

19. The backpack of claim 1, wherein the interior space of the pack body is longitudinally divided into at least two subspaces by at least one rigid sheet.

20. The backpack of claim 12, wherein the backpack has straps connected to the longitudinal supports and straps connecting the pack body and the straps, the straps being connectable to the straps at different positions.

21. The backpack of claim 3, wherein the support member is a resilient element or a cushioning element.

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