Suitcase and its suitcase caster set
The suitcase caster set with T-shaped sliding grooves and blocks enables quick and precise assembly by eliminating visual obstruction, improving assembly efficiency and user convenience.
Patent Information
- Application Number
- JP2025002327U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Priority Date
- 2025-06-24
- Filing Date
- 2025-07-14
- Publication Date
- 2025-09-11
- Estimated Expiration
- 2035-07-14
AI Technical Summary
The assembly of conventional suitcase caster sets is complicated and time-consuming due to visual obstruction by the large suitcase shell, leading to increased assembly errors and reduced efficiency.
A suitcase caster set design featuring T-shaped sliding grooves and blocks for precise alignment, allowing quick coupling of the inner caster cover and caster set to the suitcase shell, eliminating visual obstruction during assembly.
Facilitates rapid and accurate assembly, reducing assembly time and errors, enhancing manufacturing efficiency and user convenience.
Smart Images

Figure 0003252800000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a suitcase caster set, and more particularly to a suitcase caster set that can be quickly coupled to a suitcase shell in a suitable position. [Background technology]
[0002] Most suitcases currently on the market are equipped with caster sets at their bottoms. This design makes it easier for users to pull the suitcase on the road and reduces the physical effort required to carry the suitcase during travel. A conventional caster set structure typically includes an inner caster cover, a number of screw kits, and casters. During assembly, holes are pre-drilled in the inner caster cover, and corresponding holes are pre-drilled in the bottom shell of the suitcase. To assemble the caster set, an assembly worker first attaches the inner caster cover to the inside of the suitcase, carefully aligning the holes in the inner caster cover with the holes in the bottom shell of the suitcase. Then, the screw kit included with the caster set is threaded sequentially through the holes in the inner caster cover and the bottom shell of the suitcase, and finally, the caster set and the suitcase are firmly connected using a locking mechanism. Summary of the Invention [Problem to be solved by the invention]
[0003] However, because suitcase shells are typically very large, when an assembler tries to precisely align the caster set screw kit and lock the holes in the inner caster cover and suitcase, the suitcase shell often blocks the assembler's line of sight. This line of sight makes it difficult for the assembler to visually confirm whether the caster set and screw kit are in the correct locking position, making the entire locking process complicated and time-consuming. This visual uncertainty not only reduces assembly efficiency but also makes assembly errors more likely, affecting product quality and manufacturing costs.
[0004] Therefore, the present inventors believed that the above drawbacks could be improved, and after extensive research, they came up with the present invention, which effectively improves the above issues through rational design.
[0005] The present invention has been made in view of the above circumstances, and aims to solve the above problems by providing a suitcase caster set that can be quickly connected to a suitcase shell at an appropriate position. [Means for solving the problem]
[0006] To achieve the above object, one aspect of the present invention provides a suitcase caster set that is applicable to a suitcase. The suitcase caster set includes an inner caster cover and a caster set. The inner caster cover includes an inner caster cover base and at least one inner caster cover positioning member. The at least one inner caster cover positioning member is connected to the inner caster cover base. The caster set includes a caster set base and at least one caster set positioning member. The caster set base is installed below the inner caster cover base. The at least one caster set positioning member is connected to the caster set base, and the position of the at least one caster set positioning member corresponds to the at least one inner caster cover positioning member.
[0007] According to one embodiment of the present invention, the inner caster cover further comprises at least one inner caster cover hole located on the inner caster cover base.
[0008] According to one embodiment of the present invention, the caster set further comprises at least one caster set hole located on the caster set base.
[0009] According to one embodiment of the present invention, when the caster set positioning member and the inner caster cover positioning member are fully coupled, the inner caster cover holes are aligned with the caster set holes.
[0010] According to one embodiment of the present invention, the inner caster cover positioning member is a T-shaped sliding groove, and the caster set positioning member is a T-shaped sliding block. [Effects of the Invention]
[0011] According to the present invention, a suitcase caster set is provided that can be quickly coupled to the appropriate position and suitcase shell.
[0012] At least the following points will become clear from the description and drawings to be described later. [Brief explanation of the drawings]
[0013] [Figure 1] 1 is a schematic diagram showing a suitcase and a suitcase caster set according to an embodiment of the present invention; [Figure 1A] 1 is a partial schematic view showing a suitcase and a suitcase caster set according to an embodiment of the present invention; [Figure 2] 1 is a schematic view showing a suitcase caster set according to one embodiment of the present invention; [Figure 3] 1 is a schematic view showing a suitcase caster set in which the inner caster cover and the caster set are separated according to one embodiment of the present invention; [Figure 4] 1 is another schematic view showing a suitcase caster set in which the inner caster cover and the caster set are separated according to an embodiment of the present invention; FIG. DETAILED DESCRIPTION OF THE INVENTION
[0014] The present invention will be described below with reference to the accompanying drawings, in which: FIG. 1 is a block diagram of a conventional optical fiber cable; FIG. 2 is a block diagram of a conventional optical fiber cable;
[0015] First, the suitcase and its suitcase caster set according to the present invention will be described in detail with reference to FIGS.
[0016] Figure 1 is a schematic diagram of a suitcase and suitcase caster set according to one embodiment of the present invention. Figure 1A is a partial schematic diagram of a suitcase and suitcase caster set according to one embodiment of the present invention. Figure 2 is a schematic diagram of a suitcase caster set according to one embodiment of the present invention. Figure 3 is a schematic diagram of a suitcase caster set in which the inner caster cover and the caster set are separable according to one embodiment of the present invention. Figure 4 is another schematic diagram of a suitcase caster set in which the inner caster cover and the caster set are separable according to one embodiment of the present invention.
[0017] As shown in Figures 1 and 2, a suitcase 100 according to one embodiment of the present invention provides a suitcase caster set 1 that can be quickly coupled to a suitcase shell at an appropriate position. The suitcase 100 includes a suitcase shell 110 and a plurality of suitcase caster sets 1. The bottom of the suitcase shell 110 is designed with a plurality of mounting holes, the shapes of which correspond to the suitcase caster sets 1 and are used to mount the suitcase caster sets 1 respectively. Alternatively, the bottom of the suitcase shell 110 is designed with screw holes to lock the suitcase caster sets 1. A plurality of suitcase caster sets 1 are coupled to the bottom of the suitcase shell 110, and each suitcase caster set 1 includes an inner caster cover 10 and a caster set 20.
[0018] As shown in FIGS. 1A, 3, and 4, in this embodiment of the present invention, the inner caster cover 10 is installed inside the suitcase shell 110 and rests on the mounting holes or screw holes of the suitcase shell 110. The inner caster cover 10 includes an inner caster cover base 11, two inner caster cover positioning members 12, and two inner caster cover holes 13. The inner caster cover base 11 is shaped to correspond to the base of the bottom of the suitcase shell 110 so that it can be attached to the bottom of the suitcase shell 110. The two inner caster cover positioning members 12 are T-shaped sliding grooves, both connected to the inner caster cover base 11 and facing the caster set 20. The inner caster cover positioning members 12 are used for fast positioning on the caster set 20. However, the number of inner caster cover positioning members 12 is not limited to two and can be one or more as needed. Furthermore, the type of inner caster cover positioning member 12 is not limited to a T-shaped sliding groove, but can also be other members with positioning functions, such as a U-shaped groove, a dovetail groove, or other structures that fit the caster set positioning member, providing flexibility in design diversification. Two inner caster cover holes 13 are located in the inner caster cover base 11 and are used to pass through a screw kit (not shown). However, the number of inner caster cover holes 13 is not limited to two and can be changed to one or more as needed to meet the needs of different screw locking points.
[0019] In this embodiment of the present invention, the caster set 20 is equipped with a caster base body and is used to roll the suitcase 100 on the road, reducing the force required for the user to pull it. The caster set 20 includes a caster set base 21, two caster set positioning members 22, and two caster set holes 23. The caster set base 21 is installed below the inner caster cover base 11 and on the outside of the suitcase shell 110. The two caster set positioning members 22 are T-shaped sliding blocks, both connected to the caster set base 21 and facing the inner caster cover 10. The positions of the two caster set positioning members 22 correspond to the two inner caster cover positioning members 12, respectively. The T-shaped sliding blocks of the two caster set positioning members 22 are used to slide into the T-shaped sliding grooves of the two inner caster cover positioning members 12, respectively, to achieve fast positioning and coupling. However, the number of caster set positioning members 22 is not limited to two and may be one or more as needed. The type of caster set positioning member 22 is also not limited to a T-shaped slide block, and may be a member of other shapes that are compatible with the inner caster cover positioning member 12 and have a positioning function. Two caster set holes 23 are located on the caster set base 21 and are used to pass through a screw kit (not shown). However, the number of caster set holes is not limited to two and may be one or more as needed and the number of inner caster cover holes 13. When the two caster set positioning members 22 and the two inner caster cover positioning members 12 are fully coupled, the two inner caster cover holes 13 are aligned with the two caster set holes 23, respectively, and the screw kit is passed through the aligned inner caster cover holes 13 and caster set holes 23 to firmly lock the inner caster cover 10 and caster set 20 to the suitcase shell 110.
[0020] In an embodiment of the present invention, when an assembly worker assembles the suitcase caster set 1 of the present invention to the suitcase shell 110, as shown in Figures 1A, 3 and 4, the assembly worker first places the inner caster cover 10 inside the suitcase shell 110, attaches the inner caster cover base 11 of the inner caster cover 10 to the bottom of the suitcase shell 110, aligns the inner caster cover holes 13 with the designated mounting holes or screw holes of the suitcase shell 110, and points the inner caster cover positioning member 12 downward to facilitate attachment to the caster set 20.
[0021] Next, the assembler aligns the caster set 20 with the inner caster cover base 11 of the inner caster cover 10 from outside the suitcase shell 110. At this time, the T-shaped slide blocks of the two caster set positioning members 22 on the caster set 20 respectively correspond to and slide into the T-shaped slide grooves of the two inner caster cover positioning members 12 on the inner caster cover 10. The T-shaped slide blocks fit into the T-shaped slide grooves, allowing for precise positioning of the caster set 20 and inner caster cover 10 to be achieved quickly. This significantly reduces the hassle of repeated alignment adjustments that occurs with conventional assembly methods, which obstruct the line of sight.
[0022] 1A to 4, when the caster set positioning member 22 and the inner caster cover positioning member 12 are fully coupled, the two inner caster cover holes 13 on the inner caster cover 10 automatically and precisely align with the two caster set holes 23 on the caster set 20. Therefore, the assembler can insert a screw kit (not shown) into the aligned inner caster cover holes 13 and caster set holes 23 in order to firmly lock the inner caster cover 10 and caster set 20 to the suitcase shell 110, thereby easily and quickly assembling the suitcase caster set 1 to the suitcase shell 110. During the assembly process, the suitcase shell 110 does not obstruct the view, which prevents the assembly process from taking too long.
[0023] In summary, the structural design of the suitcase 100 and its suitcase caster set 1 according to the present invention provides a solution for rapid assembly and removal. The inner caster cover 10 and caster set 20 utilize a precise alignment mechanism for the T-shaped sliding grooves and T-shaped sliding blocks to ensure a fast and accurate assembly process, and the subsequent locking of the screw kit achieves a firm and reliable connection. The structural design of the suitcase caster set 1 simplifies the assembly flow of traditional suitcase caster sets, reducing the time workers spend on maintaining and replacing caster sets and effectively lowering technical hurdles. On-line assembly workers no longer need to spend a large amount of time on complex alignment operations. For after-sales service or self-maintenance by consumers, replacing a broken caster set is also simplified, eliminating the need for specialized tools and complex procedures. This not only improves manufacturing efficiency, but also significantly improves product maintenance convenience and user experience, extending the overall service life of the suitcase.
[0024] Although the embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and design modifications and the like are also included within the scope of the present invention without departing from the gist of the present invention. [Explanation of symbols]
[0025] 1 suitcase caster set 10 Inner caster cover 11 Inner caster cover base 12 Inner caster cover positioning member 13 Inner caster cover hole 20 Caster Set 21 Caster Set Base 22 Caster set positioning member 23 Caster set hole 100 suitcases 110 Suitcase Shell
Claims
1. A suitcase caster set that is applied to a suitcase, Inner caster cover, A caster set is provided. The inner caster cover is Inner caster cover base and and at least one inner caster cover positioning member connected to the inner caster cover base. The caster set includes: a caster set base installed below the inner caster cover base; and at least one caster set positioning member connected to the caster set base, the position of the at least one caster set positioning member corresponding to the at least one inner caster cover positioning member.
2. 2. The suitcase caster set according to claim 1, wherein the inner caster cover further comprises at least one inner caster cover hole located in the inner caster cover base.
3. 3. The suitcase caster set according to claim 2, wherein the caster set further comprises at least one caster set hole located in the caster set base.
4. 4. The suitcase caster set according to claim 3, wherein when the at least one caster set positioning member and the at least one inner caster cover positioning member are fully coupled, the at least one inner caster cover hole is aligned with the at least one caster set hole.
5. 5. The suitcase caster set according to claim 4, wherein at least one of the inner caster cover positioning members is a T-shaped sliding groove, and at least one of the caster set positioning members is a T-shaped sliding block.
6. A suitcase, Suitcase shell and a plurality of suitcase caster sets coupled to the suitcase shell; Each of said suitcase caster sets is Inner caster cover, a caster set; The inner caster cover is Inner caster cover base and at least one inner caster cover positioning member coupled to the inner caster cover base; The caster set includes: a caster set base installed below the inner caster cover base; the suitcase further comprises at least one caster set positioning member connected to the caster set base, the position of the at least one caster set positioning member corresponding to the at least one inner caster cover positioning member.
7. 7. The suitcase according to claim 6, wherein the inner caster cover further comprises at least one inner caster cover hole located in the inner caster cover base.
8. 8. The suitcase of claim 7, wherein the caster set further comprises at least one caster set hole located in the caster set base.
9. 9. The suitcase of claim 8, wherein when the at least one caster set positioning member and the at least one inner caster cover positioning member are fully coupled, the at least one inner caster cover hole aligns with the at least one caster set hole.
10. 10. The suitcase according to claim 9, wherein at least one of the inner caster cover positioning members is a T-shaped sliding groove, and at least one of the caster set positioning members is a T-shaped sliding block.