Double-shoulder bag with load reduction and correction functions

Abstract

The present invention provides a backpack, which comprises: a longitudinal support having a first end opposite to a human shoulder and a second end opposite to a human waist; a bag body independent of the longitudinal support and having a top end opposite to the first end and a bottom end opposite to the second end, wherein the bag body is arranged obliquely relative to the longitudinal support; and at least one transverse connecting member connecting the longitudinal support and the bag body and at least partially maintaining the oblique arrangement of the bag body relative to the longitudinal support, and a first transverse distance between the first end and the top end is greater than a second transverse distance between the second end and the bottom end. A part of the weight of the bag body of the backpack is shared by the waist or the back, thereby reducing the pressure on the shoulder and achieving the effect of reducing the load, on the other hand, the oblique arrangement of the bag body to the right generates a backward stretching force on the shoulder, thereby achieving the effect of correcting the bending of the shoulder and back.

Description

TECHNICAL FIELD

[0001] The present application relates to a backpack, in particular to a backpack capable of reducing the load on the shoulders and correcting the deformation of the shoulder and back. BACKGROUND

[0002] The body of a conventional backpack is in close contact with the user's back, and the weight of the backpack is entirely applied to the shoulders. Long-term use of the backpack will cause damage and discomfort to the shoulders and back, and in severe cases, it will cause deformation of the spine and scapula, causing humpback or shoulder deformation. The load-reducing backpack can alleviate the stress on the shoulders to some extent and improve the comfort of the user.

[0003] For example, CN 214855012 U provides a force suspension load-reducing multifunctional backpack, which utilizes the elastic bands at both ends of the shoulder straps and the interrupted elastic bands of the three-section elastic connecting bands to form six elastic points that are simultaneously stressed and stretched, thereby creating a suspension effect by pulling the backpack body through the elastic force of the elastic bands, so as to reduce the weight borne by the user and achieve the effect of reducing the load. Similar designs also include CN 214677995 U, CN 214547925 U, CN 214230252 U, CN 213664123 U, etc. However, such designs cause the backpack to be in a constant up-and-down motion during use, although the upward motion can reduce some of the pressure on the shoulders, the downward motion will inevitably increase the pressure on the shoulders, and the pressure relief effect is limited, and the comfort of using the backpack is questionable.

[0004] CN 214630652 U discloses a gas bag type pressure-reducing backpack, which is provided with a gas bag pressure increasing device and an inflation gas bag, etc. The gas bag is inflated by an internal inflation pump, and in combination with the internal flexible waistband and other components, the effect of cushioning, pressure reduction and auxiliary support can be achieved, thereby better protecting the human spine. However, the installation of the pressure increasing device, the inflation pump and the inflation pipeline on the body of the backpack itself causes additional burden, making the load reduction effect less than expected.

[0005] CN 112806705 A discloses a mechanical suspension load-reducing backpack, which is provided with a mounting plate, a transmission system and an energy storage device, the transmission system and the energy storage device are connected to the mounting plate, a gear and a rack are arranged between the mounting plate and the transmission system, so that the mounting plate and the transmission system slide relative to each other during the up-and-down movement of the mounting plate and the transmission system when the human body is walking, and the up-and-down sliding of the mounting plate repeatedly causes the energy storage device to store and release energy. The force formed in this process counteracts the force of the backpack overcoming gravity, achieving the effect of reducing the load on the user's shoulders. However, the transmission system and the energy storage device of the backpack itself cause additional heavy burden, and the mechanical design is too complex, resulting in high production and maintenance costs.

[0006] Therefore, there is a need to provide a simple and comfortable backpack to overcome the defects of the prior art, which can not only reduce the burden on the shoulders and play a weight-reducing effect, but also correct the shoulder and back. SUMMARY

[0007] One aspect of the present application provides a backpack, comprising: a longitudinal support having a first end opposite to a human shoulder, a second end opposite to a human waist, and a middle portion connecting the first end and the second end; a body independent of the longitudinal support and having a top end opposite to the first end, a bottom end opposite to the second end, and a middle portion connecting the top end and the bottom end, wherein the body is arranged obliquely relative to the longitudinal support; and at least one transverse connecting member connecting the longitudinal support and the body and at least partially maintaining the oblique arrangement of the body relative to the longitudinal support, and a first transverse distance between the first end and the top end is greater than a second transverse distance between the second end and the bottom end.

[0008] In some embodiments, the angle of the oblique arrangement (i.e. the included angle between the longitudinal direction of the body and the longitudinal direction of the longitudinal support) can be varied. In some embodiments, the angle of the oblique arrangement can be varied at equal intervals, for example, at an interval of 5 degrees. In some embodiments, the angle of the oblique arrangement can be varied between greater than 0 degrees and less than 90 degrees. In some embodiments, the angle of the oblique arrangement can be varied between 15 and 45 degrees. In some embodiments, the angle of the oblique arrangement can be varied between 15 and 30 degrees. In some embodiments, the angle of the oblique arrangement can be selected from 5 degrees, 15 degrees, 30 degrees, 45 degrees and 60 degrees.

[0009] In some embodiments, the body can be switched between an oblique position and a non-oblique position. For example, in the non-oblique position, the body is parallel and fitted with the longitudinal support in the longitudinal direction. For example, in the oblique position, the angle of the oblique arrangement can be fixed (e.g. 30 degrees) or varied (e.g. in the manner described above).

[0010] In some embodiments, the transverse connecting member has a first connecting portion connected with the longitudinal support, a second connecting portion connected with the body, and a middle connecting portion connecting the first connecting portion and the second connecting portion, and the distance between the first connecting portion and the second connecting portion gradually decreases in the longitudinal direction from the first end of the longitudinal support to the second end. In some embodiments, the middle connecting portion is located at the end of the first connecting portion and the second connecting portion. In some embodiments, the middle connecting portion is located at the middle of the first connecting portion and the second connecting portion.

[0011] In some embodiments, the backpack further includes a support member independent of the lateral connector, the support member extending from the longitudinal support member and at least partially supporting the backpack body. In some embodiments, the angle between the support member and the longitudinal support member is variable. In some embodiments, the angle between the support member and the longitudinal support member is fixed.

[0012] In some embodiments, the support member is disposed between the middle portion of the longitudinal support member and the middle portion of the bag body, and the support member extends laterally from the longitudinal support member by a first distance, thereby increasing the second lateral spacing.

[0013] In some embodiments, the support member is connected between the second end of the longitudinal support member and the bottom end of the bag body. In some embodiments, the support member extends laterally from the second end of the longitudinal support member, and the bag body is disposed on the support member.

[0014] In some embodiments, the support element of the backpack is an elastic element or a cushioning element, such as a spring or an airbag.

[0015] In some embodiments, the bag body is disposed on the support member via a first intermediate connector having a first portion connected to the bag body and a second portion connected to the support member, the included angle between the first portion and the second portion being variable.

[0016] In some embodiments, the bag body is mounted on the support member via a first intermediate connector, the first intermediate connector being wedge-shaped, the inclined surface of the wedge contacting the bottom end of the bag body. In some embodiments, the angle between the inclined surface of the wedge and the support member can vary.

[0017] In some embodiments, the lateral connector is formed of a filler material. In some embodiments, the lateral connector is formed of a filler material and the bottom of the bag body is also filled with wedge-shaped filler material to maintain the tilt of the bag body together with the lateral connector.

[0018] In some embodiments, the lateral width of the lateral connector can be adjusted at predetermined intervals.

[0019] In some embodiments, the lateral connector is at least partially rigid. For example, the lateral connector includes, but is not limited to, a link, hinge, tripod, airbag, etc., and its lateral width may be adjustable or non-adjustable.

[0020] In some embodiments, the transverse connector is a textile that surrounds and connects the bag body to the longitudinal connector. For example, the bag body can be directly sewn to the textile that wraps the transverse connector using textile threads.

[0021] In some embodiments, one or more of the longitudinal support, the lateral connector, and the support member are concealed, or one or more of the longitudinal support, the lateral connector, and the support member are exposed. In some embodiments, the lateral connector is concealed. In some embodiments, the backpack includes a zipper located between the longitudinal support and the bag body, the opening and closing of which causes the lateral connector to be concealed or exposed.

[0022] In some embodiments, the internal space of the bag body is longitudinally divided into at least two sub-spaces by at least one rigid sheet. In some embodiments, the sides of the bag body have at least one rigid sheet as a lining to maintain the rigidity of the bag body.

[0023] In some embodiments, the backpack has shoulder straps connected to the longitudinal support and a strip connecting the bag body to the shoulder straps, the strip being able to connect to the shoulder straps at different positions.

[0024] The backpack provided by this invention has an independent bag body and a longitudinal support member. The top of the bag body is tilted away from the longitudinal support member, and the bottom of the bag body abuts against the longitudinal support member or is connected to the longitudinal support member through a support member. On the one hand, part of the weight of the bag body is distributed to the waist or back, thereby reducing the pressure on the shoulders and achieving a load-bearing effect. On the other hand, the rightward tilt of the bag body generates a backward pulling force on the shoulders, thereby correcting the curvature of the shoulders and back. The backpack of this invention can be used as a school bag, travel bag, hiking bag, and other scenarios. Attached Figure Description

[0025] This invention will be described in more detail with reference to the accompanying drawings. It should be noted that the illustrated schemes are merely representative examples of embodiments of the invention, and to more clearly illustrate the details of exemplary embodiments, the elements in the drawings are not drawn to scale; the number of actual elements may vary, the relative positions of the actual elements remain substantially consistent with the illustrations, and some elements are not shown. In cases where multiple embodiments exist, when one or more features described in previous embodiments are also applicable to another embodiment, for the sake of brevity, these reusable features will not be repeated in subsequent embodiments. These subsequent embodiments should be understood as having described these reusable features, unless otherwise stated. Those skilled in the art will recognize upon reading this invention that one or more features shown in one figure can be combined with one or more features in another figure to construct one or more alternative embodiments not specifically shown in the drawings, and these alternative embodiments also constitute a part of this invention.

[0026] Figure 1 schematically shows a side view (1A) and perspective (1B) of a backpack according to an embodiment of the present invention.

[0027] Figure 2 The schematic diagram illustrates the skeletal structure of a backpack according to another embodiment of the present invention.

[0028] Figure 3 The schematic diagram illustrates the skeletal structure of a backpack according to another embodiment of the present invention.

[0029] Figure 4 The schematic diagram illustrates the skeletal structure of a backpack according to another embodiment of the present invention.

[0030] Figure 5 The schematic diagram illustrates the skeletal structure of a backpack according to another embodiment of the present invention.

[0031] Figure 6 schematically shows a partial perspective view (6A) and a side view (6B) of a support member in a backpack according to another embodiment of the present invention.

[0032] Figure 7 schematically shows a side view (7A) and perspective (7B) of a backpack according to an embodiment of the present invention.

[0033] Figure 8 This is a schematic diagram of the structural skeleton of a backpack according to another embodiment of the present invention.

[0034] Figure 9 This diagram shows the structural skeleton of a backpack according to another embodiment of the present invention.

[0035] Figure 10A skeletal diagram of a backpack according to another embodiment of the present invention is shown.

[0036] Figure 11 This diagram shows the skeletal structure of a backpack according to another embodiment of the present invention.

[0037] Figure 12 A skeletal diagram of a backpack according to another embodiment of the present invention is shown.

[0038] Figure 13 A skeletal diagram of a backpack according to another embodiment of the present invention is shown.

[0039] Figure 14 schematically shows a side view (14A) and a perspective view (14B) of a backpack according to another embodiment of the present invention.

[0040] Figure 15 schematically shows a perspective view (15A) and a side view (15B) of a backpack according to another embodiment of the present invention.

[0041] Figure 16 schematically shows a perspective view (16A) and a side view (16B) of a backpack according to another embodiment of the present invention.

[0042] Figure 17 schematically shows a side view (17A) and a perspective view (17B) of a backpack according to another embodiment of the present invention.

[0043] Figure 18 The illustration shows a side view of a backpack according to another embodiment of the present invention.

[0044] Figure 19 The illustration shows a side view of a backpack according to another embodiment of the present invention.

[0045] Figure 20 The illustration shows a side view of a backpack according to another embodiment of the present invention.

[0046] Figure 21 This diagram shows the force analysis of the backpack of the present invention. Detailed Implementation

[0047] The exemplary embodiments of the present invention are described in detail below with reference to the accompanying drawings. It should be understood that the scope of the present invention is not limited to the disclosed embodiments. Those skilled in the art, after reading the disclosure of this invention, can modify and vary these exemplary embodiments based on the teachings of the present invention, without any inventive effort. Such modifications and variations are intended to be included within the scope outlined in the appended claims.

[0048] Figure 1A and 1BSide and perspective views of a backpack 100 according to an embodiment of the present invention are schematically shown. The backpack 100 includes a longitudinal support 110, a body 120, and a transverse connector 130. The longitudinal support 110 has a first end 112 opposite to the shoulder, a second end 116 opposite to the waist, and an intermediate portion 114 connecting the first end 112 and the second end 116. The longitudinal support 110 is typically a plate-like structure and is made of a rigid material or has a rigid frame to enable it to withstand part of the weight of the body 120 without deformation. The rigid material or rigid frame can be, for example, a lightweight plastic, which can be covered by textiles or exposed.

[0049] The bag body 120 exists independently of the longitudinal support 110 and is used to contain items. The bag body 120 is typically cuboid, but may also be other suitable three-dimensional shapes. The bag body 120 has a top end 122 opposite to a first end 112 of the longitudinal support 110, a bottom end 126 opposite to a 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 inclined relative to the longitudinal support 110.

[0050] The transverse connector 130 connects the longitudinal support 110 and the bag body 120, and maintains the inclined setting of the bag body 120 relative to the longitudinal support 110. The first transverse distance w1 between the first end 112 and the top end 122 is greater than the second transverse distance w2 between the second end 116 and the bottom end 126, so the bag body 120 is inclined to the right relative to the longitudinal support 110 as shown in the figure.

[0051] In this embodiment, the transverse connector 130 has a first connecting portion 132 connected to the longitudinal support 110, a second connecting portion 134 connected to the bag body 120, and an intermediate connecting portion 136 connecting the first connecting portion 132 and the second connecting portion 134. To maintain the inclined arrangement of the bag body 120 relative to the longitudinal support 110, the distance between the first connecting portion 132 and the second connecting portion 134 gradually decreases longitudinally (i.e., along the length of the longitudinal support 110) from the first end 112 to the second end 116 of the longitudinal support 110. Those skilled in the art will expect that the transverse connector 130 is not limited to the structure shown in this embodiment; for example, the intermediate connecting portion 136 of the transverse connector 130 may be located in the middle of the first connecting portion 132 and the second connecting portion 134 instead of at the ends as shown. The transverse connector 130 is generally rigid, for example, made of a rigid material (such as plastic), to fix the inclination angle of the bag body 120 relative to the longitudinal support 110.

[0052] The tilt angle can vary, for example, from greater than 0 degrees to less than 90 degrees, such as 15 to 45 degrees, 15 to 30 degrees, or 30 degrees. The tilt angle depends on the arrangement of the lateral connector 130, particularly the angle between its second connecting portion 134 and its first connecting portion 132. The first lateral spacing w1 and the second lateral spacing w2 depend on the lateral extension distance of the intermediate connecting portion 136 of the lateral connector 130 and the aforementioned tilt angle. For example, the value of the first lateral spacing w1 can be 1 to 20 cm, and the value of the second lateral spacing w2 can be 0 to 15 cm. In this embodiment, the tilt angle can be set to 30 degrees, the value of w1 can be set to 10 cm, and the value of w2 can be set to 5 cm. Those skilled in the art can freely adjust the tilt angle, w1, and w2 as needed, and are not limited to the specific examples described above.

[0053] The backpack 100 also includes shoulder straps 102 (only a portion of which is shown) connected to a longitudinal support 110, and cushioning pads 104 and 106 attached to the longitudinal support 110 to provide cushioning against the gravitational pressure exerted by the backpack 100 on the back and waist, respectively. One or both of the cushioning pads 104 and 106 may be replaced, for example, by fabric covering the longitudinal support 110, or may be further covered by fabric.

[0054] Figure 2 The schematic diagram illustrates the skeletal structure of a backpack 200 according to another embodiment of the present invention. The backpack 200 includes a longitudinal support 210, a body 220, and a transverse connector 230. The backpack 200 also includes a pair of shoulder straps 202, each of which may have an adjustment element 208 for adjusting its length; the structure of the adjustment element 208 is well known in the art and will not be described further. The longitudinal support 210 includes a first end 212, a second end 216, and a middle portion 214 connecting the two. In a practical product, the longitudinal support 210 may be covered with fabric and / or have cushioning attached. The body 220 includes a top end 222 and a bottom end 226, and is inclined relative to the longitudinal support 210. The transverse connector 230 connects the first end 212 of the longitudinal support 210 and the top end 222 of the body 220. In this embodiment, the transverse connectors 230 may be arranged in pairs and may be made of a rigid material. In this embodiment, the transverse connector 230 can be configured to be detachably connected to the longitudinal support 210 or the body 200.

[0055] In this embodiment, the backpack 200 also includes a support member 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 (e.g., the middle section) of the bag body 220, thereby partially supporting the weight of the bag body 220. The support member 240 is made of a rigid material, and this rigid material may be elastic. The support member 240 may include a notch 242, allowing it to detach from the second end 216 under external force through elastic deformation of the material, thus enabling a detachable connection between the bag body 220 and the longitudinal support member 210. When the lateral connector 230 can also be detachably connected to the longitudinal support member 210 or the bag body 200, the bag body 220 can be completely separated from the longitudinal support member 210 for replacement or cleaning. In this embodiment, the support member 240 may be configured to be non-rotatably connected relative to the second end 216.

[0056] Figure 3 The schematic diagram 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 structures of the lateral connector 330 and the support member 340 differ. Specifically, the lateral connector 330 connects the first end 312 of the longitudinal support member 310 to the middle portion 324 of the bag body 320 and has an adjustable length. Length adjustment can be achieved, for example, by an adjusting element 338, which can be any form known in the art. In this embodiment, the adjusting element 338 can be the same adjusting buckle as the adjusting element 308 of the shoulder strap 302. The adjusting element 338 is made of a rigid material so that the bag body 320 cannot swing freely in the lateral direction.

[0057] The support member 340 is connected to the second end 316 of the longitudinal support member 310, and the second end 316 passes through the support member 340, allowing the support member 340 to rotate around the second end 316. The tightness of the connection between the support member 340 and the second end 316 can be reasonably set so that the support member 340 can only rotate around the second end 316 under the action of external force. This can be achieved by reasonably setting the diameter of the second end and the diameter of the corresponding through hole of the support member 340. When the support member 340 can rotate around the second end 316 (that is, the angle between the support member 340 and the longitudinal support member changes), the inclination angle of the body 320 relative to the longitudinal support member 310 changes accordingly. Accordingly, the length of the transverse connector 330 can be adjusted to accommodate the change in inclination angle.

[0058] Figure 4The skeleton structure of a backpack 400 according to another embodiment of the present invention is shown. The backpack 400 includes a longitudinal support 410, a bag body 420, and an adjustable-length transverse connector 430. A support member 440 is disposed between a middle portion 414 of the longitudinal support 410 and a middle portion 424 of the bag body 420. The support member 440 includes a first extension 442 connected to the longitudinal support 410, a second extension 444 connected to the bag body 420, and a pivot 446 connecting the first extension 442 and the second extension 444, such that the first extension 442 and the second extension 444 can rotate relative to each other.

[0059] The first extension 442 extends laterally by a first distance from the longitudinal support member, forming the lateral length of the first extension 442. This lateral length allows the bottom end 426 of the bag body 420 to be spaced apart from the user's buttocks even when the longitudinal length of the bag body 420 is large and easily touches the user's buttocks (e.g., in a hiking or mountaineering backpack scenario), thereby improving user comfort. In this embodiment, the extension distance of the first extension 442 increases the second lateral distance between the second end 416 of the longitudinal support member 410 and the bottom end 426 of the bag body 420, but the bag body 420 still maintains an inclination relative to the longitudinal support member 410. For example, the extension distance of the first extension 442 can be 10 to 30 cm, or larger, or smaller, which can be reasonably determined based on the longitudinal length of the bag body 420.

[0060] Figure 5 The skeleton structure of a backpack 500 according to another embodiment of the present invention is shown. The backpack 500 includes a longitudinal support 510, a bag body 520, an adjustable-length transverse connector 530, and a support member 540. The support member 540 is disposed at a second end 516 of the longitudinal support 510 and extends laterally therefrom to form a support platform 548. In this embodiment, the support platform 548 may be flat, supporting the bag body 520 over its entire bottom end 526. The bag body 520 may be fixedly or detachably connected to the support platform 548 by one or more fasteners 545.

[0061] The support platform 548 is rotatable about the second end 516, thereby allowing adjustment of the tilt angle of the bag body 520 relative to the longitudinal support member 510. In this embodiment, the angle between the support platform 548 and the longitudinal support member 510 is greater than 90 degrees, thus ensuring that the bag body is always tilted to the right as shown in the figure. The support member 540 also includes a fastener 546 (e.g., a fastening bolt) capable of fixing the tilt angle. Once a suitable tilt angle is determined, the angle between the support platform 548 and the longitudinal support member 510 is fixed by tightening the fastener 546. When adjusting the tilt angle, the fastener 546 is loosened to rotate the support platform 548 and adjust its angle with the longitudinal support member 510.

[0062] Figure 6A and 6B Shown as Figure 5 An alternative to the support 540 in the illustrated embodiment, wherein Figure 6A It shows a partial perspective view. Figure 6B The side view is shown. Unlike support member 540, support member 640 is fixedly connected to the second end 616 of longitudinal support member 610 and cannot rotate relative to it. Support member 640 forms support platform 648, supporting bag body 620. In this embodiment, bag body 620 is disposed on support platform 648 via first intermediate connector 650. First intermediate connector 650 has a first portion 654 connected to the bottom end 626 of bag body 620 and a second portion 656 connected to support platform 648. The included angle between the first portion 654 and the second portion 656 can be varied by rotation of pivot 652. In this embodiment, first intermediate connector 650 is provided with at least one protrusion 658, which is located between the first portion 654 and the second portion 656 to keep them spaced apart, so that bag body 620 always remains inclined relative to longitudinal support member 610. In this embodiment, the protrusion 658 is shown to be disposed on the second portion 656, but those skilled in the art will recognize that the protrusion 658 may also be disposed on the first portion 654 and have the same function.

[0063] Figure 7A and 7BSide and perspective views of the skeletal structure of a backpack 700 according to another embodiment of the present invention are schematically shown. The backpack 700 includes a longitudinal support 710, a body 720, and an adjustable-length transverse connector 730. The backpack 700 also includes a support 740 fixedly connected to a second end 716 of the longitudinal support 710 and non-rotatable relative to the longitudinal support 710. The body 720 is disposed on the support 740 via a first intermediate connector 750. In this embodiment, the first intermediate connector 750 is wedge-shaped, with its inclined surface 754 contacting the bottom end 726 of the body 720. The body 720 can be fixedly or detachably connected to the inclined surface 754 by one or more fasteners 745.

[0064] The first intermediate connector 750 has a groove 752, in which a fastener 746 is disposed. The groove 752 is movable relative to the fastener 746, thereby adjusting the inclination angle of the inclined surface 754. Consequently, the inclination angle of the package body 720 relative to the longitudinal support 710 can be varied. Once a suitable inclination angle is determined, the angle between the inclined surface 754 and the longitudinal support 710 is fixed by tightening the fastener 746. When adjusting the inclination angle, the fastener 746 is loosened to adjust the angle between the inclined surface 754 and the longitudinal support 710.

[0065] Figure 8 This is a schematic diagram of the structural skeleton of a backpack 800 according to another embodiment of the present invention. The backpack 800 includes a longitudinal support member 810, a bag body 820, a transverse connector 830, and a support member 840. The support member 840 is fixedly connected to the second end 816 of the longitudinal support member 810 and is generally wedge-shaped, with its inclined surface 848 supporting the bag body 820. The bag body 820 can be fixed or detachably connected to the inclined surface 848 by fasteners 845. In this embodiment, the angle of inclination of the bag body 820 relative to the longitudinal support member 810 is set to a fixed angle and cannot be adjusted; therefore, the transverse connector 830 can be set to a fixed length.

[0066] Figure 9 This diagram shows a structural skeleton of a backpack 900 according to another embodiment of the present invention. The backpack 900 includes a longitudinal support 910, a bag body 920, a transverse connector 930, and a support member 940. The backpack 900 and... Figure 8The backpack 800 shown has a substantially similar structure, but the structure of the transverse connector 930 differs. In this embodiment, the transverse connector 930 connects the longitudinal support 910 and the bag body 920 along their entire longitudinal direction and has a shape that adapts to the space formed between the longitudinal support 910 and the bag body 920 (shown as a general triangle in the figure). This triangular transverse connector 930 may not fill the space formed between the longitudinal support 910 and the bag body 920, but may be sheet-like and there may be multiple of them.

[0067] A through-hole 936 may be provided at the center of the transverse connector 930 to facilitate airflow. The shape and position of the through-hole 936 are not limited to those shown in the figure, and the through-hole 936 can be replaced by other forms, such as multiple smaller holes distributed on the transverse connector 930. Those skilled in the art will anticipate various other possible forms of airflow. In other embodiments, the through-hole 936 may also be absent.

[0068] Figure 10 A skeletal structural diagram of a backpack 1000 according to another embodiment of the present invention is shown. The backpack 1000 includes a longitudinal support 1010, a bag body 1020, a transverse connector 1030, and a support member 1040, having a similar structure to the backpack 700 shown in FIG. 7, but the transverse connectors differ. In this embodiment, the transverse connector 1030 connects the longitudinal support 1010 and the bag body 1020 along their entire longitudinal direction and has a shape (shown as a general triangle in the figure) that accommodates the space formed between the longitudinal support 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 bag body 1020. The transverse connector 1030 also includes a pivot 1036 connecting the first portion 1032 and the second portion 1034. The first part 1032 and the second part 1034 can rotate around the pivot 1036 respectively, thus allowing the width of the transverse connector 1030 in the transverse direction to be adjusted.

[0069] The transverse connector 1030 may not fill the space formed between the longitudinal support 1010 and the bag body 1020, but may be sheet-like and may be multiple. In this embodiment, there are two transverse supports 1030, namely transverse support 1030a and transverse support 1030b, which are located near the two sides of the bag body 1020, respectively. When the angle of the support member 1040 relative to the longitudinal support 1010 is adjusted, causing the tilt angle of the bag body 1020 relative to the longitudinal support 1010 to change, the transverse connector 1030 adaptively changes its transverse length by rotating the first part 1032 and the second part 1034 relative to the pivot 1036.

[0070] The rotation of the first part 1032 and the second part 1034 relative to the pivot 1036 can be configured to occur only under the action of external force, thus preventing the body 1020 from swinging arbitrarily in the lateral direction. In actual products, the lateral connector 1030 can take the form of a hinge or a hinge chain.

[0071] Figure 11 A skeletal structural diagram of a backpack 1100 according to another embodiment of the present invention is shown. The backpack 1100 includes a longitudinal support 1110, a bag body 1120, and a transverse connector 1130. The bag body 1120 is directly connected to the second end 1116 of the longitudinal support 1110 via fabric (e.g., by sewing with textile thread). The transverse connector 1130 may be in the form of a transverse connector 1030 or other forms with adjustable transverse width (e.g., an elastic connector). The transverse connector 1130 is surrounded by a zipper 1138 around the longitudinal support 1110 and the bag body 1120. When the zipper 1138 is fully open, the bag body 1120 tilts relative to the longitudinal support 1110 due to the force (e.g., elastic repulsion) of the intermediate connector 1130. When the zipper 1138 is fully closed, the force of the transverse connector 1130 is counteracted by the zipper 1138, thus placing the bag body 1120 parallel to and in close contact with the longitudinal support 1110, and therefore the bag body 1120 is in a non-tilted position. This design allows the bag body 1120 to be easily switched between tilted and non-tilted positions.

[0072] Figure 12 A skeletal structural diagram of a backpack 1200 according to another embodiment of the present invention is shown. The backpack 1200 includes a longitudinal support 1210, a body 1220, a transverse connector 1230, and a support member 1240, and has a similar structure to the backpack 700 shown in FIG. 7, but the transverse connectors differ. In this embodiment, the transverse connector 1230 connects the longitudinal support 1210 and the body 1220 along their entire longitudinal direction and has a shape (shown as a general triangle in the figure) to accommodate the space formed between the longitudinal support 1210 and the body 1220. The width of the transverse connector 1230 in the transverse direction is adjustable, for example, with respect to the width of the body. Figure 10 The form shown is the same.

[0073] In this embodiment, the transverse connector 1230 is surrounded by the zipper 1238. When the zipper 1238 is fully open, the support member 1240 and the first intermediate connector 1250 cause the bag body 1220 to tilt relative to the longitudinal support member 1210. When the zipper 1238 is fully closed, the first intermediate connector 1250 can be adjusted to be parallel to the support member 1240, thereby placing the bag body 1220 parallel to and in close contact with the longitudinal support member 1210, thus placing the bag body 1220 in a non-tilted position. In this embodiment, the support member 1240 and the first intermediate connector 1250 may be exposed without being covered by fabric.

[0074] Figure 13 A skeletal structural diagram of a backpack 1300 according to another embodiment of the present invention is shown. The backpack 1300 includes a longitudinal support 1310, a bag body 1320, a transverse connector 1330, and a support member 1340, and has a similar structure to the backpack 700 shown in FIG. 7, but the transverse connectors differ. In this embodiment, the transverse connector 1330 connects the middle portion 1314 of the longitudinal support 1310 and the middle portion 1324 of the bag body 1320. The width of the transverse connector 1330 in the transverse direction is adjustable. Specifically, in this embodiment, the transverse connector 1330 is a rack and has a fixing portion 1336 disposed on the bag body 1320. The rack 1330 can pass through and slide within 1336, thus allowing the transverse width of the transverse connector 1330 to be adjusted at fixed intervals. Therefore, the tilt angle of the bag body 1320 relative to the longitudinal support 1310 can vary at fixed intervals (e.g., 5 degrees or 10 degrees). When the lateral width of the rack 1330 is adjusted, the first intermediate connector 1350 adapts by changing its ramp in a manner similar to that described previously. The material of the lateral connector 1330 may be a rigid material, such as hard plastic or a lightweight metal (e.g., aluminum or aluminum alloy).

[0075] Figure 14A and 14BSide and perspective views of a backpack 1400 according to another embodiment of the present invention are schematically shown. The backpack 1400 includes a longitudinal support 1410, a body 1420 (shown in dashed lines), a transverse connector 1430, and a support 1440. The body 1420 is arranged at an angle relative to the longitudinal support 1410. In this embodiment, the body 1420 and the space between it and the longitudinal support 1410 are wrapped with fabric, and said space is filled with a padding material (e.g., sponge) to form the transverse connector 1430. Similarly, the space at the bottom of the body is filled with padding material (e.g., sponge) to form the support 1440. Thus, the transverse connector 1430 is shown in the figures as a triangular cross-section, while the support 1440 is shown in the figures as a wedge-shaped cross-section, thereby maintaining the angle of the body 1420 relative to the longitudinal support 1410.

[0076] Figure 15A and 15B A perspective view and a side view of a backpack 1500 according to another embodiment of the present invention are schematically shown. The backpack 1500 includes a longitudinal support 1510, a bag body 1520, and a transverse connector 1530. The bag body 1520 is sewn to the second end 1516 of the longitudinal support 1510 by means of textile thread and is inclined relative to the longitudinal support 1510. The transverse connector 1530 includes a groove 1532 provided on the longitudinal support 1510 and a fastener 1538 connected to the bag body 1520, the fastener 1538 being slidable within the groove. By tightening or loosening the fastener 1538, the bag body 1520 can be loosened and secured, thereby adjusting the inclination angle of the bag body 1520 relative to the longitudinal support 1510.

[0077] The backpack 1500 also includes a pair of shoulder straps 1502 and a pair of straps 1560 connecting the top of the bag body 1520 to the shoulder straps 1502. Each strap 1560 has a plurality of spaced-apart holes 1562, and each shoulder strap 1502 has a retaining pin 1503 that passes through the holes 1562, thereby detachably connecting the straps 1560 and the shoulder straps 1502 together. The plurality of holes 1562 allows the straps 1560 and the shoulder straps 1502 to be connected at different positions, thus adapting to the adjustment of the lateral connectors 1530. There may be two lateral connectors 1530, located on opposite sides of the bag body 1520.

[0078] Those skilled in the art will appreciate that the structure of the transverse connector 1530 is not limited to the illustrated embodiment. For example, the transverse connector 1530 can be a transverse connector as seen in other embodiments of the present invention, such as... Figures 8 to 13 Any of the lateral connectors in the illustrated embodiments.

[0079] Figure 16Aand 16B A perspective view and a side view of a backpack 1600 according to another embodiment of the present invention are schematically shown. The backpack 1600 includes a longitudinal support member 1610, a bag body 1620, and a transverse connector 1630. The bag body 1620 is sewn to a second end 1616 of the longitudinal support member 1610 by means of textile thread and is inclined relative to the longitudinal support member 1610. The transverse connector 1630 connects the top end 1622 of the bag body 1620 to the first end 1612 of the longitudinal support member 1610. In this embodiment, the transverse connector 1630 is fixedly connected to the longitudinal support member 1610 by fasteners 1636. The transverse connector 1630 includes at least two through holes 1634 and 1638, and a fixing bolt 1632 provided at the top end 1622 of the body 1620 can pass through one of the two through holes 1634 and 1638, thereby connecting the body 1620 to the longitudinal support 1610 at the first end 1612 and the top end 1612.

[0080] When the fixing bolt 1632 passes through the through hole 1638, the bag body 1620 is inclined relative to the longitudinal support 1610, and this inclination is maintained by the transverse connector 1630 and the bottom seam of the bag body. When the fixing bolt 1632 passes through the through hole 1634, the bag body 1620 is parallel to and conforms to the longitudinal support 1610, and is thus in a non-inclined position. It will be contemplated in the art that by providing more through holes on the transverse support 1630, the adjustment of the inclination angle will be more diversified.

[0081] Figure 17A and 17B The diagram schematically shows a side view and a perspective view of a backpack 1700 according to another embodiment of the present invention. The backpack 1700 includes a longitudinal support 1710, a body 1720, and a lateral connector 1730. The body 1720 is sewn to the second end 1716 of the longitudinal support 1710, for example by means of textile thread, and is arranged at an angle relative to the longitudinal support 1710. In this embodiment, the longitudinal support 1710 is configured to have an ergonomic shape to better conform to the natural curvature of the human spine. Furthermore, cushioning pads 1713 and 1715 may be attached to the longitudinal support 1710 at its first end 1712 and second end 1716, respectively, to increase the comfort of the backpack. Alternatively, the longitudinal support 1710 may be covered with fabric and filled with elastic padding material, but retains its overall ergonomic shape after fabric covering and filling.

[0082] Figure 18A schematic side view of a backpack 1800 according to another embodiment of the present invention is shown. The backpack 1800 includes a longitudinal support 1810, a body 1820, and a transverse connector 1830. The body 1820 is inclined 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 longitudinally divided into three independent sub-spaces by two rigid materials 1828. The body 1820 may also include two additional rigid materials 1827 located around the interior spaces to provide sufficient rigidity to the body without deformation. The rigid materials 1827 and 1828 extend along the entire longitudinal direction of the body 1820.

[0083] The presence of rigid material 1828 not only serves to divide space, but more importantly, it ensures that when the bag body 1820 contains a lot of items, the center of gravity of the items is along the longitudinal rigid material 1828 (or 1827), that is, the same direction as the inclination of the bag body relative to the longitudinal support member 1810, so as to ensure that the weight reduction and correction effect brought about by the inclination setting of the bag body is not negated by the center of gravity of the items.

[0084] Figure 19 This illustration shows a side view of a backpack 1900 according to another embodiment of the invention. The backpack 1900 includes a longitudinal support 1910, a body 1920, and a lateral connector 1930. In this embodiment, the backpack 1900 also includes a support 1940 connecting a middle portion 1924 of the body 1920 and a middle portion 1914 of the longitudinal support 1910. The support 1940 in this embodiment is an elastic element, such as a spring or airbag, which provides at least partial support to the body 1920 and cushions the body 1920 against the longitudinal support 1910 (and thus against the user's lower back). This cushioning, together with the cushioning element (e.g., a padding) provided by the longitudinal support 1910 on the side closest to the user's lower back, enhances user comfort.

[0085] Figure 20This shows a side view of a backpack 2000 according to another embodiment of the present invention. The backpack 2000 includes a longitudinal support 2010, a bag body 2020, and a lateral connector 2030. The backpack 2000 also includes a support 2040 connecting a middle portion 2024 of the bag body 2020 and a middle portion 2014 of the longitudinal support 2010. The support 2040 is connected to the bag body 2020 via a fastener 2042. In this embodiment, the support 2040 rotates about a pivot 2046 relative to the longitudinal support 2010, thereby allowing adjustment of the tilt angle of the bag body 2020 relative to the longitudinal support 2010. In this embodiment, the angle between the support 2040 and the longitudinal support 2010 is acute and the same as the tilt angle between the bag body 2020 and the longitudinal support 2010.

[0086] Figure 21 This diagram illustrates a force analysis of a backpack according to an embodiment of the present invention. As shown, the backpack body is balanced by the combined action of gravity G, the tensile force F9 of the lateral connector, and the supporting force F10 of the support member. The tensile force F9 of the lateral connector can be decomposed into a component F5 along the direction of gravity and a component F6 along the horizontal direction. The supporting force F10 of the support member can be decomposed into a component F7 along the direction of gravity and a component F8 along the horizontal direction. On one hand, according to the principle of mechanical equilibrium, F6 = F8, and G = F5 + F7. During backpack use, the supporting force F10 of the support member is partially provided by the user's back or waist. Therefore, for the user, the force on their shoulders (the reaction force of component F5) is at least partially offset by component F7, thus reducing the burden on the shoulders. On the other hand, through static equilibrium analysis, the equilibrium torque at point A is taken, and the equilibrium equation is obtained: F6*L4=G*L3, that is, F6 = G*tanα. As α is larger, F6 is larger, thus having a greater stretching and corrective effect on the user's shoulders.

[0087] The above descriptions are representative examples of embodiments of the present invention and are provided for illustrative purposes only. The present invention contemplates that one or more technical features used in one embodiment can be added to another embodiment to form improved or alternative embodiments without departing from the purpose of the embodiment. Similarly, one or more technical features used in one embodiment can be omitted or replaced without departing from the purpose of the embodiment to form alternative or simplified embodiments. Furthermore, one or more technical features used in one embodiment can be combined with one or more technical features in another embodiment without departing from the purpose of the embodiment to form improved or alternative embodiments. The present invention is intended to include all of the above-mentioned improved, alternative, and simplified technical solutions.

Claims

1. A backpack, characterized in that, include: A longitudinal support member having a first end opposite to the human shoulder, a second end opposite to the human waist, and an intermediate portion connecting the first end and the second end; The bag body is independent of the longitudinal support and has a top end opposite to the first end, a bottom end opposite to the second end, and a middle portion connecting the top end and the bottom end, wherein the bag body is inclined relative to the longitudinal support, and the top end of the bag body is inclined away from the longitudinal support relative to the longitudinal support. as well as At least one lateral connector connects the longitudinal support to the bag body and at least partially maintains the inclination of the bag body relative to the longitudinal support. The first lateral distance between the first end and the top end is greater than the second lateral distance between the second end and the bottom end, and The bottom end of the bag body abuts against the longitudinal support or is connected to the longitudinal support via a support member.

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

3. The backpack according to claim 1, characterized in that, The backpack also includes a support member independent of the lateral connector, the support member extending from the longitudinal support member and at least partially supporting the backpack body.

4. The backpack according to claim 3, characterized in that, The angle between the support member and the longitudinal support member is variable.

5. The backpack according to claim 3, characterized in that, The support member is disposed between the middle portion of the longitudinal support member and the middle portion of the bag body, and the support member extends laterally from the longitudinal support member by a first distance, thereby increasing the second lateral spacing.

6. The backpack according to claim 3, characterized in that, The support member is connected between the second end of the longitudinal support member and the bottom end of the package body.

7. The backpack according to claim 3, characterized in that, The support extends laterally from the second end of the longitudinal support, and the package body is disposed on the support.

8. The backpack according to claim 7, characterized in that, The bag body is mounted on the support member via a first intermediate connector. The first intermediate connector has a first part connected to the bag body and a second part connected to the support member, and the included angle between the first part and the second part can vary.

9. The backpack according to claim 7, characterized in that, The bag body is mounted on the support member via a first intermediate connector, which is wedge-shaped, with the inclined surface of the wedge contacting the bottom end of the bag body.

10. The backpack according to claim 9, characterized in that, The angle between the inclined surface of the wedge and the support member can vary.

11. The backpack according to claim 1, characterized in that, The lateral connector is formed of filler material.

12. The backpack according to claim 1, characterized in that, The lateral width of the lateral connector can be adjusted at predetermined intervals.

13. The backpack according to claim 1, characterized in that, The lateral connector is at least partially rigid.

14. The backpack according to claim 1, characterized in that, The lateral connector is a textile that surrounds and connects the bag body to the longitudinal support.

15. The backpack according to claim 3, characterized in that, One or more of the longitudinal support, the transverse connector, and the support member are hidden, or one or more of the longitudinal support, the transverse connector, and the support member are exposed.

16. The backpack according to claim 15, characterized in that, The backpack includes a zipper located between the longitudinal support and the bag body, the zipper being opened and closed causing the lateral connector to be concealed and exposed.

17. The backpack according to claim 1, characterized in that, The package body can switch between an inclined position and a non-inclined position.

18. The backpack according to claim 1, characterized in that, The tilt angle can be varied.

19. The backpack according to claim 1, characterized in that, The internal space of the package is divided into at least two sub-spaces in the longitudinal direction by at least one rigid sheet.

20. The backpack according to claim 12, characterized in that, The backpack has shoulder straps connected to the longitudinal support and a strip connecting the bag body and the shoulder straps, the strip being able to connect to the shoulder straps at different positions.

21. The backpack according to claim 3, characterized in that, The supporting element is an elastic element or a cushioning element.

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