Carry bag that is easy to tract

The carry bag design with additional fixed wheels addresses mobility challenges on uneven ground by evenly distributing weight, ensuring stability and quiet operation, while being cost-effective and visually appealing.

JP2025165347APending Publication Date: 2025-11-04戸上 元良
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Patent Information

Application Number
JP2024077575
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-04-22
Publication Date
2025-11-04

AI Technical Summary

Technical Problem

Conventional carry bags with adjustable handles and swivel wheels struggle with slow walking speeds on uneven ground, difficulty in control when tilted, and noise/meandering issues, especially when pulled behind the body, and require cumbersome adjustments for improved mobility.

Method used

The carry bag design incorporates additional fixed wheels at the front corners of the bottom, supported by an outer pocket, to distribute weight evenly across all four wheels, ensuring stability and ease of towing without noise or meandering.

Benefits of technology

The additional wheels provide stable and quiet towing by distributing weight evenly, enhancing mobility and reducing manufacturing costs while maintaining aesthetic integrity.

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Abstract

To solve a problem that, in a conventional carry bag, an extension adjustable handle is provided in an upper part of a box-shaped storage case and the carry bag is moved by pushing or pulling the storage case by using wheels attached to four corners in a bottom part of the storage case, and there is a universal method in which a carry bag is located in rear of a body, inclined diagonally, and pulled by a handle, but in such configurations, when the carry bag is inclined diagonally, the weight of the storage case and the stored object is applied to the wheels in the two corners on the side to be pulled, it becomes heavy to tow, towing direction is not stable, and towing becomes difficult.SOLUTION: Additional wheels 8a, 8b are attached to front parts of handle-side wheels 7a, 7b attached to a bottom part 4 of a carry bag body 1, and, when a carry bag is inclined diagonally to the handle side, the carry bag is supported by four wheels of the wheels 7a, 7b, 8a, 8b.SELECTED DRAWING: Figure 1
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Description

Detailed Description of the Invention Technical Field to which the Invention Pertains

[0001] This invention relates to carry bags, carry cases, and suitcases that are transported by using a handle attached to the top and rolling the wheels on the bottom. Carry bags, carry cases, and suitcases are classified by the materials they are made of and their uses, but the method of transporting the storage cases is the same. [Background technology]

[0002] A typical carry bag uses an adjustable, retractable handle attached to the top of the storage case, and wheels attached to the four corners of the bottom of the storage case to push or pull the storage case. When moving the carry bag in a vertical position, the wheels on the four corners are used. When the carry bag is positioned behind the body and tilted at an angle and pulled by the handle, the rotatable wheels on the two corners on the handle side are used. Problems such as improving the quietness and stability of carry bags are solved by changing the material and structure of the wheels. [Prior art documents]

[0003] Known techniques for solving such problems include Japanese Patent Application Laid-Open Nos. 10-304921, 11-020402, and 2018-102890. Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional carry bags are designed with an adjustable handle at the top of the bag and swivel wheels at the four corners of the bottom, making them suitable for vertical travel. However, this method of travel does not allow for faster walking speeds. Furthermore, it is difficult to move around on uneven ground. To increase walking speed, people often position the carry bag behind their body, tilt it at an angle, and pull it by the handle. Because the bottom of the carry bag is inclined, the wheels at the four corners cannot be used, so wheels at the two corners closest to the handle are used. The weight of the carry bag and its contents is placed on the wheels at the two corners, making it difficult to control when towing with two swivel wheels. Furthermore, noise and meandering problems have been addressed by replacing the wheels with dual wheels. However, using dual wheels does not solve these problems, and the problem of uneven wheel wear has been added.

[0005] In conventional technology, the carry bag can be easily moved by pulling out auxiliary wheels attached to the arm or by changing the handle position. However, when actually using the carry bag, it is troublesome to pull out the auxiliary wheels or change the handle position each time to make it easier to move. There is also the problem that this mars the appearance of the carry bag.

[0006] To provide a carry bag, a carry case and a suitcase according to the present invention, which solves the problems that arise when the bag is positioned behind the body, tilted at an angle and pulled by a handle, and which is convenient, comfortable to use and can be manufactured at low cost. [Means for solving the problem]

[0007] The invention described in claim 1 is a carry bag that is easy to tow, characterized by the fact that when the carry bag is positioned behind the body, tilted at an angle, and pulled by the handle, the weight of the carry bag and its contents, which was distributed across the entire bottom, is transferred to the bottom of the inclined carry bag and difficult to support with the wheels at the two corners. In order to solve this problem, two additional wheels are attached in front of the wheels at the two corners of the bottom of the handle side of the main body, which touch the ground at the same time as the wheels.

[0008] The invention described in claim 2 provides an outer pocket on the carry bag with fixed wheels attached to the bottom, so that the additional wheels do not protrude outside the surface of the carry bag. [Effects of the Invention]

[0009] As described above, the present invention allows a carry bag to be positioned behind the body, tilted at an angle, and easily pulled by the handle. By adding wheels, the weight of the carry bag is supported by all four wheels when pulling the carry bag. The additional wheels are fixed, making them easy to manufacture and install at low cost, and they do not generate noise or meandering, making towing easier. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a perspective view of a carry bag according to an embodiment of the present invention, seen from the bottom. [Figure 2] 1 is a side view of a carry bag showing an embodiment of the present invention. [Figure 3] 1 is an explanatory diagram showing an embodiment of the present invention in use; [Figure 4] FIG. 1 is an explanatory diagram showing an embodiment of the present invention in use, in which additional wheels are attached to the suitcase. [Figure 5] 1 is a perspective view of a carry bag according to an embodiment of the present invention, with additional wheels attached to the curved bottom. The invention is an embodiment of the present invention.

[0011] Fig. 1 is a perspective view of the carry bag according to the present invention as seen from the bottom, Fig. 2 is a side view, and Fig. 3 is an explanatory diagram of the state of use. Fig. 4 is an explanatory diagram showing the state of use of the carry bag when the carry bag is a suitcase. Fig. 5 is a perspective view showing an embodiment in which additional wheels are installed on the bottom of a curved carry bag, forward of the wheels on the two corners of the bottom near the handle.

[0012] In the embodiment shown in Figure 1, an outer pocket 2 is formed on the outside of the bag body 1, a handle 3 is attached to the top, wheels 6a, 6b, 7a, and 7b are rotatably attached to the bottom 4 of the bag body, and additional wheels 8a and 8b are attached to the bottom 5 of the outer pocket.

[0013] In the embodiment shown in Figures 1 to 3, the bottom 5 of the outer pocket 2 located on the handle 3 side of the carry bag body 1 is located higher than the bottom 4 of the carry bag body 1, and additional wheels 8a and 8b are attached to the bottom 5. When the carry bag body 1 is moved upright, the carry bag body 1 is supported by the wheels 6a, 6b, 7a, and 7b that are in contact with the ground, ensuring stable movement. When the carry bag body 1 is positioned behind the body and tilted at an angle and pulled by the handle 3, the carry bag body 1 is supported by the wheels 7a and 7b that are in contact with the ground and the additional wheels 8a and 8b, ensuring stable movement. At this time, the bottom 4 of the carry bag body 1 tilts, and the wheels 6a and 6b rise above the ground.

[0014] When the carry bag body 1 is positioned behind the body and tilted at an angle, and pulled by the handle 3, the carry bag body 1 faces the direction of the handle. The additional wheels 8a and 8b can be pulled more stably if they rotate only in the direction of the handle 3, and turning can be done using the wheels 7a and 7b.

[0015] The embodiment in Figure 4 shows a carry case body 9 in use. The carry case body 9 often has a curved bottom 4. The embodiment in Figure 5 shows a method for attaching additional wheels 8a, 8b to the curved bottom 4 of the carry bag body 1. This allows the existing design of the carry bag body 1 to be maintained while reducing manufacturing costs. [Explanation of symbols]

[0016] 1 Bag body 7a Wheels 2 outer pockets 7b wheels 3 Handlebars 8a Extra Wheels 4 Bottom of bag body 8b Additional wheels 5 Bottom of outer pocket 9 Suitcase 6a wheels 6b wheels

Claims

1. This easy-to-tow carry bag is provided with an adjustable handle at the top of the bag body and rotatable wheels at the four corners of the bottom, and is positioned behind the body, tilted at an angle, and pulled by the handle, with the four wheels touching the ground when pulled, and is characterized by two additional wheels installed in front of the wheels at the two corners on the handle side.

2. The carry bag that is easy to tow as described in claim 1, characterized in that an outer pocket is provided at a position higher than the bottom on the handle attachment side of the bag body and additional wheels are installed at the bottom, so that when the carry bag is tilted and pulled, the wheels of the main body and the additional wheels of the outer pocket come into contact with the ground on the same surface, allowing it to travel on all four wheels.