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KR-102964863-B1 - A WHEEL-REPLACEABLE CARRIER

KR102964863B1KR 102964863 B1KR102964863 B1KR 102964863B1KR-102964863-B1

Abstract

In Paragraph 9, The above wheel tire (123-2) has a diameter of 72 mm, and When the wheel (123) is installed between the pair of connecting plates (122) via the axle (124), a gap of 6 mm is formed between the wheel tire (123-2) and the load reinforcing plate (125). A suitcase with replaceable wheels.

Inventors

  • 이승욱

Dates

Publication Date
20260513
Application Date
20250429

Claims (10)

  1. Carrier body (110); and It includes at least four wheel assemblies (120) that are disposed in a detachable manner on the lower part of the carrier body (110) and have a structure in which the wheels are separated when the fastened bolts are released. The above wheel assembly (120) is, A circular base plate (121) bolted to the lower surface of the carrier body (110); A pair of connecting plates (122) that are erected downward from the base plate (121) and spaced apart from each other at a certain distance; A wheel (123) that matches between the above pair of connecting plates (122); and It includes an axle (124) that penetrates the pair of connecting plates (122) and the wheel (123), with one end being bolted to a thread provided on one of the pair of connecting plates (122). When the bolt connection of the axle (124) is released, the wheel (123) is separated from the pair of connecting plates (122), and A receiving space (111) for receiving the base plate (121) is formed in intaglio on the lower surface of the carrier body (110). A bolt connection hole (121-1) is formed in the center of the base plate (121), and when the base plate (121) is received in the receiving space (111), a bolt is bolted through the bolt connection hole (121-1) toward the lower surface of the carrier body (110), so that the base plate (121) is bolted to the lower surface of the carrier body (110). The above connecting plate (122) is, An upright plate (122-1) connected upright from the base plate (121); and It includes a diagonal plate (122-2) that is diagonally connected to the upright plate (122-1) at a certain angle; The above upright plate (122-1) and diagonal plate (122-2) are connected integrally, and On the above diagonal plate (122-2), A polygonal through hole (122-1a) is formed through in the thickness direction, and Between the above pair of connecting plates (122), A load reinforcing plate (125) connecting the above pair of connecting plates (122) in a horizontal direction is arranged, and The load reinforcing plate (125) is positioned at a certain distance from the base plate (121), and The base plate (121), the pair of connecting plates (122), and the load reinforcing plate (125) are formed integrally, and The above load reinforcing plate (125) is, It has an arched cross-section based on the horizontal direction, and a bolt penetration hole (125-1) is formed in the center that is concentric with the bolt connection hole (121-1). The base plate (121), the pair of connecting plates (123), the axle (124), and the load reinforcing plate (125) are, An Al-Mg-Si aluminum-magnesium-silicon alloy material with magnesium and silicon added to the aluminum component is applied, and The above wheel (123) is, Wheel frame (123-1); A wheel tire (123-2) made of urethane material that wraps around the outer circumference of the wheel frame (123-1); A magnet ring (123-3) that is received in the center of the wheel frame (123-1) and into which the axle (124) is inserted; and It includes a pair of bearings (123-4) that are received to be positioned on each side of the magnet ring (123-3) at the center of the wheel frame (123-1), with the axle (124) inserted into the center; The magnet ring (123-3) includes a bobbin on which a coil is wound and an armature cover that accommodates the bobbin, and In the inner central part of the above bobbin, A carrier with replaceable wheels, having a shaft connection hole with a circular through-hole structure and a core fastening groove forming a regular arrangement structure on the outer edge.
  2. In paragraph 1, The above wheel tire (123-2) has a diameter of 72 mm, and A wheel-replaceable carrier in which, when the wheel (123) is installed between the pair of connecting plates (122) via the axle (124), a gap of 6 mm is formed between the wheel tire (123-2) and the load reinforcing plate (125).
  3. In paragraph 2, The above wheel frame (123-1) is a wheel-replaceable carrier including an armature cover in which a light-emitting element is accommodated on the inside.
  4. In paragraph 3, The above-mentioned armature cover is composed of a plurality of symmetrically divided metal cases, and A wheel-replaceable carrier in which the current induced in the coil is transmitted to the light-emitting element through the bobbin and the bearing (123-4) using the coil ground hole as a transmission medium, thereby initiating the flashing and lighting of the light-emitting element.
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Description

A wheel-replaceable carrier The present invention relates to a carrier with replaceable wheels, and more specifically, to a carrier with replaceable wheels that is detachably disposed at the bottom of the carrier body, utilizes a lightweight frame made of an aluminum-magnesium-silicon alloy to minimize load, distributes weight through a specialized shape, and allows for easy and convenient replacement of urethane wheels simply by releasing the bolt connection of the axle. Generally, a suitcase is a type of bag that is placed on the road and pulled along by its wheels. When moving with the wheels in contact with the road, if there are obstacles on the road such as stairs, door sills, or curbs, the wheels cannot roll properly, causing the inconvenience of having to lift the entire bag by hand. In addition, when moving on uneven surfaces or carrying a heavy bag, the weight of the bag is concentrated on the wheels, frequently causing the wheel's axle to break easily due to the weight of the bag. To solve these problems, urethane material was conventionally applied to the wheel and tire to suppress noise and absorb shock; however, since the wheel frame was formed of reinforced plastic, there was a problem where it was easily damaged by strong impacts. In addition, since conventional wheel structures do not allow for the wheels to be separated, there was the inconvenience that even if the wheel frame was damaged or the wheel tire was torn, separate repairs were not possible, and the entire carrier had to be replaced or the wheel module itself had to be replaced with a new one. FIG. 1 is a drawing showing the overall shape of a wheel-replaceable carrier (100) according to one embodiment of the present invention. FIG. 2 is a drawing showing the configuration of the wheel assembly (120) in more detail. FIG. 3 is a drawing showing the base plate (121) in more detail. FIG. 4 is a drawing showing the state in which the base plate (121) is fixedly installed in the receiving space (111) on the lower surface of the carrier body (110). FIG. 5 is a drawing showing a polygonal through hole (122-1a) formed on a diagonal plate (122-1). FIG. 6 is an exploded perspective view showing the configuration of the wheel (123) in more detail. Figure 7 is a drawing showing a cross-section of a load reinforcing plate (125). FIG. 8 is a drawing showing the process of replacing the wheel (123) from the wheel assembly (120). FIG. 9 is an exploded perspective view of a base plate (121) and a thrust needle roller bearing (200) placed in the wheel house of the lower part of the carrier. Hereinafter, specific details for implementing the present invention will be described in detail with reference to the attached drawings. However, in the following description, specific descriptions regarding widely known functions or configurations will be omitted if there is a risk that the gist of the present invention may be unnecessarily obscured. In the attached drawings, identical or corresponding components are given the same reference numerals. Additionally, in the description of the following embodiments, the description of identical or corresponding components may be omitted. However, even if a description of a component is omitted, it is not intended that such component is not included in any embodiment. The advantages and features of the invented embodiments and the methods for achieving them will become clear by referring to the embodiments described below together with the accompanying drawings. However, the present invention is not limited to the embodiments described below but can be implemented in various different forms, and these embodiments are provided merely to make the present invention complete and to fully inform a person skilled in the art of the scope of the invention. The terms used in this specification will be briefly explained, and the invented embodiments will be described in detail. The terms used in this specification have been selected to be as generally used as possible, taking into account their functions in the present invention; however, these terms may vary depending on the intent of those skilled in the relevant field, case law, the emergence of new technologies, etc. Additionally, in specific cases, terms have been arbitrarily selected by the applicant, and in such cases, their meanings will be described in detail in the relevant description of the invention. Therefore, the terms used in this invention should be defined not merely by their names, but based on the meanings they possess and the content of the invention as a whole. In this specification, singular expressions include plural expressions unless the context clearly specifies them as singular. Additionally, plural expressions include singular expressions unless the context clearly specifies them as plural. Throughout the specification, when a part is described as including a certain component, this means that, unless specifically stated otherwise, it does not