Backpack-style bag

Abstract

To provide a backpack-type bag capable of reliably forming a ventilation space between the bag body and the back. [SOLUTION] In a backpack-type bag (10) that can be carried on the back, a support frame (20) is attached to the outer surface (12) of the back side of the bag body (11), forming a ventilation space (40) between the bag body (11) and the back. The support frame (20) is characterized by comprising a pair of vertical shafts (21, 22) that are symmetrical and curve inwardly and forward and backward, and a pair of horizontal shafts (25, 26) that connect the upper and lower ends of the vertical shafts (21, 22), respectively.

Description

[Technical Field]

[0001] This invention relates to a backpack-type bag (also called a rucksack or daypack) that can be carried on the back. [Background technology]

[0002] Because backpacks are worn on the back, in hot seasons such as summer, the area between the back and the bag can become sweaty and uncomfortable, and there is a risk of staining clothing and the bag.

[0003] Therefore, various techniques have been developed to prevent the accumulation of heat and sweat by providing breathability between the back and the bag (for example, Patent Documents 1 to 3).

[0004] Patent Document 1 shows a backpack as shown in Figure 1, which is made of lightweight, breathable plastic lattice-like elliptical cylinders or perforated elliptical cylinders assembled with strings, with sufficient space between the back and the backpack to allow air to circulate.

[0005] Patent Document 2 is illustrated in Figure 2 and is a ventilated pad for backpacks, which is made up of an aggregate of numerous meshes, each of which shares some of the boundaries with the others and is supported by multiple pillars, and which is characterized by having a ventilation gap on the front side between the back of the backpack and the pad by ventilation gap-maintaining pillars on the back side.

[0006] Patent Document 3 is shown in Figure 3, in which a net 2 is placed on the part that touches the back, and steel wires 1 are attached to maintain space between the net and the back part of the backpack. The steel wires 1 prevent the back part from sticking to the body and allow for breathability. Copper wires 1 maintain the shape of the backpack. By simplifying the structure and making the equipment detachable, it can be used as a normal backpack when this function is not required. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Publication No. 10-14657 [Patent Document 2] Japanese Patent Application Publication No. 2018-23674 [Patent Document 3] Japanese Patent Application Laid-Open No. 2013-233399 Summary of the Invention [Problem to be solved by the invention]

[0008] In the above-mentioned Patent Documents 1 and 2, it was necessary to attach a member to the entire outer surface of the back of the backpack to provide breathability, which was a complex device and could cause discomfort to the back, which is not very desirable for users.

[0009] In contrast, the above-mentioned Patent Document 3 simply involves attaching a steel wire 1 to the outer surface of the back of the backpack, which is extremely simple for the user and does not come into direct contact with the back, making it highly convenient for the user.

[0010] However, since the steel wire 1 is rectangular (quadrilateral) when viewed from the front, it cannot reliably support the deflection of the backpack (the carrying part) at the center of the steel wire 1, and there is insufficient space between it and the back part, which may impair breathability.

[0011] Therefore, the inventor of the present invention has completed the present invention in order to provide a backpack-type bag that can reliably form a ventilation space between the bag body and the back. [Means for solving the problem]

[0012] The first invention of the present invention is a backpack-type bag that can be carried on the back, in which a support frame is attached to the outer surface of the back side of the bag body to form a ventilation space between the bag body and the back, and the support frame is characterized by consisting of a pair of vertical axes that are symmetrical and curve inward and forward and backward, and a pair of horizontal axes that connect the upper and lower ends of the vertical axes. The second invention is a backpack-type bag according to the first invention, characterized by having an attachment / detachment mechanism that allows the support frame to be attached and detached freely by clamping the vertical axis of the support frame to the outer surface of the back side of the bag body. The third invention is a backpack-type bag according to the first or second invention, characterized in that the bag body has a mesh contact portion that contacts the back. [Effects of the Invention]

[0013] The "backpack bag" according to the present invention has the following advantages: (1) The support frame for forming the ventilation space between the bag body and the back not only curves a pair of symmetrical vertical axes back and forth, but also curves inward, so that the support frame can support not only the outer periphery of the back side of the bag body, but also the center part. This prevents the center part from bending (bulging) and blocking the ventilation space, and ensures that the ventilation space is maintained and secured. (2) By providing a detachable mechanism that clamps the vertical axis of the support frame on the outer surface of the back of the bag body, the position of the support frame (especially the vertical axis) will not shift, and the ventilation space can be reliably maintained and secured. (3) The bag body is provided with a mesh contact part that comes into contact with the back, which provides stability and reduces sweat buildup. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is an explanatory diagram illustrating Patent Document 1. [Figure 2] FIG. 1 is an explanatory diagram illustrating Patent Document 2. [Figure 3]FIG. 1 is an explanatory diagram illustrating Patent Document 3. [Figure 4] FIG. 1 is an explanatory diagram illustrating an embodiment of the present invention. [Figure 5] FIG. 2 is an explanatory diagram illustrating an embodiment of the present invention. [Figure 6] FIG. 3 is an explanatory diagram illustrating an embodiment of the present invention. [Figure 7] FIG. 4 is an explanatory diagram illustrating an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0015] An embodiment of the "backpack-type bag" according to the present invention will be described with reference to the drawings. The dimensions shown in the drawings are merely examples and are not intended to be limiting.

[0016] FIG. 4 is a perspective view of the appearance of the backpack-type bag 10. As shown in FIG. The backpack-type bag 10 has a support frame 20 attached to the outer surface 12 on the back side of the bag body 11, and also has a contact part 30 that comes into contact with the back of a person (user) carrying the backpack-type bag 10.

[0017] 5 and 6 are a perspective view (FIG. 5) and a front view (FIG. 6) of the support frame 20. As shown in the figure, the support frame 20 is a left-right symmetrical frame body, and includes a pair of vertical shafts 21 and 22 and a pair of horizontal shafts 25 and .

[0018] 5, the vertical axes 21, 22 are curved in the front-rear direction, which allows a clearance (55 mm in the figure) to be provided between the back outer surface 12 of the bag body 11 and the contact portion 30, forming the ventilation space 40.

[0019] 6, the vertical shafts 21, 22 are also curved inward. This inward curvature allows the vertical shafts 21, 22 to support not only the outer peripheral edge of the back-side outer surface 12 of the bag body 11, but also the central portion of the back-side outer surface 12. The bag body 11 may swell (deflect) depending on what is stored inside, which may affect the ventilation space 40. However, the support frame 20 prevents the back-side outer surface 12 of the bag body 11 from swell (deflect), ensuring that the ventilation space 40 is reliably maintained and secured.

[0020] 6, the support frame 20 clamps the vertical shafts 21, 22 with attachment / detachment mechanisms 13, 13 provided on the outer back surface 12 of the bag body 11. The attachment / detachment mechanisms 13 are equipped with hook-and-loop fasteners 14 and clamp the vertical shafts 21, 22 in the folded state, thereby detachably attaching the support frame 20. In this way, the support frame 20 is securely fixed to the outer back surface 12, so there is no misalignment and the ventilation space can be reliably maintained and secured. However, the attachment / detachment mechanisms 13 are not limited to this.

[0021] FIG. 7 is a side view of the backpack 10 in use (when worn by the user). As shown in the figure, a ventilation space 40 is formed between the bag body 11 and the user. If a ventilation space 40 is formed between the user's back and the bag body 11 in this way, wind (air) can pass through, eliminating the discomfort of sweat and humidity, and preventing clothing and the bag from getting dirty. [Industrial Applicability]

[0022] The "backpack bag" according to the present invention can be used in any situation, whether casual or formal, regardless of its purpose. In addition, since there are no restrictions on the type, design, or size of the bag, it can be used with a variety of backpack-type bags. [Explanation of symbols]

[0023] 10 Backpack-style bag 11 Bag body 12 Outer back surface 13 Detachable mechanism 14 hook and loop fasteners 20 Support Frame 21 Vertical Axis 22 Vertical Axis 25 Horizontal axis 26 Horizontal axis 30 Contact part 40 Ventilation space

Claims

1. This backpack-type bag can be carried on the back, and has a support frame attached to the outer surface of the back side of the bag body to form a ventilation space between the bag body and the back, and the support frame is symmetrical and comprises a pair of vertical shafts that curve inwardly and forwardly, and a pair of horizontal shafts that respectively connect the upper and lower ends of the vertical shafts.

2. The backpack-type bag according to claim 1, further comprising a detachable mechanism that allows the support frame to be detachably attached by clamping the vertical axis of the support frame to the outer surface of the back side of the bag body.

3. 3. The backpack-type bag according to claim 1, wherein the bag body is provided with a mesh contact portion that contacts the back.

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