Front-opening trolley case with easy-to-assemble front cover

The front-opening trolley case with an easy-to-assemble front cover addresses the challenge of fixed assembly and high production costs by using a detachable middle plate and outer frame design, enabling diverse styles and efficient production.

EP4609748A1Inactive Publication Date: 2025-09-03HANGZHOU GEMA SUITCASES & BAGS
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Patent Information

Application Number
EP2024221360
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-02-28
Filing Date
2024-12-19
Publication Date
2025-09-03
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing trolley cases with fixed assembly and difficult replacement of covers fail to meet consumer demands for diverse styles and increase production costs.

Method used

A front-opening trolley case with an easy-to-assemble front cover structure, comprising a detachable middle plate and outer frame connected via a zipper, allowing for easy replacement and simplifying production by using unified molds for the main body and new molds only for the middle plate.

Benefits of technology

Enables production of trolley cases with varied appearances at reduced costs and simplified manufacturing processes, enhancing usability and aesthetic appeal.

✦ Generated by Eureka AI based on patent content.

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Abstract

The disclosure relates to the technical field of bags, in particular to a front-opening trolley case with an easy-to-assemble front cover. An existing trolley case is assembled fixedly and cannot be replaced easily. The front-opening trolley case with an easy-to-assemble front cover comprises a main body, one side of the main body is provided with a front cover structure, the front cover structure comprises a middle plate and an outer frame, and the middle plate is detachably connected with the outer frame. The manufacturing of new products only needs to re-design and make a mold for the middle plate which is then assembled with the outer frame, which controls the cost to a certain extent, simplifies production and assembly technologies and provides a more beautiful appearance, thus having a good development prospect.
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Description

Technical Field

[0001] The disclosure relates to the technical field of bags, in particular to a front-opening trolley case with an easy-to-assemble front cover.Background

[0002] A Chinese utility model CN212345639U discloses a luggage case in which the side edges of the cover and the bottom edge are located in the same plane, so as to meet high requirements of curved zippers and wrapping for the production technology and reduce operation difficulty to improve the yield of trolley cases. However, single fixed products cannot meet the pursuit of consumer groups for products with new styles and new appearance, and the manufacturing of new products requires more molding cost. In order to meet the demand of consumers and control the cost, a front-opening trolley case with an easy-to-replace front cover is designed to further improve the product structure and reduce the difficulty of the production technology.Summary

[0003] To solve the above technical problem, the purpose of the disclosure is to provide a front-opening trolley case with an easy-to-assemble front cover, which solves the problems of fixed assembly and difficult replacement of existing trolley cases.

[0004] To achieve the above purpose, the disclosure adopts the following technical solution: a front-opening trolley case with an easy-to-assemble front cover, comprising a main body, one side of the main body is provided with a front cover structure, the front cover structure comprises a middle plate and an outer frame, and the middle plate is detachably connected with the outer frame.

[0005] By adopting the above technical solution, the main body of the trolley case is located on the back surface which is not easy to notice, the main body is manufactured with a unified mold, the manufacturing of new products does not need to make a new mold, but only needs to re-design and make a mold for the middle plate, and replacement can be made by removing or installing the detachable structure from / on the outer frame, which not only can meet the demand of consumers for different styles of products, but also can control the cost and simplify the production technology.

[0006] Further, the outer frame is arranged at the periphery of the middle plate, the middle plate comprises a flip cover and a front cover frame body, the front cover frame body is detachably connected with the outer frame, and the outer frame is connected with the main body through a zipper structure.

[0007] By adopting the above technical solution, the outer frame and the main body form the main frame structure of the trolley case, the appearance of the trolley case can be changed by replacing the middle plate, and the outer frame plays a protective role and provides a more beautiful appearance.

[0008] Further, a fastening structure is arranged between the outer frame and the front cover frame body.

[0009] By adopting the above technical solution, positioning and assembly are convenient.

[0010] Further, the fastening structure comprises a clamping groove and a clamping strip, the clamping groove is arranged on the front cover frame body, the clamping strip is arranged on the inner side of the outer frame, and the clamping strip is matched with the clamping groove in shape.

[0011] By adopting the above technical solution, the appearance is more beautiful than an external connecting structure.

[0012] Further, a connecting edge is arranged at the periphery of the front cover frame body, and the connecting edge and the outer frame are provided with screw holes in corresponding positions and fixed by bolts.

[0013] By adopting the above technical solution, the installation steps are simplified, and the effective fixation between connecting components is realized.

[0014] Further, the flip cover and the front cover frame body are connected by a zipper arranged in the same plane to realize the opening and closing of the front cover structure.

[0015] Compared with a traditional bag structure in which the side edges of the cover and the bottom edge are located in different planes and the zipper needs to make curved transitions in different planes, by adopting the above technical solution, the production technology is simple with low difficulty, and the production efficiency of bags is effectively improved.

[0016] Further, the flip cover and the front cover frame body both have a plate-like structure with a certain thickness and are combined to form a middle plate structure with an accommodating space.

[0017] Compared with planar flip covers, by adopting the above technical solution, the connecting surface of the flip cover and the front cover frame body is moved back, i.e., the zipper structure has a certain distance from the front surface of the flip cover, the distance is the thickness of the flip cover, and it is not easy to see the zipper directly from the front surface, which is more beautiful in appearance.

[0018] Further, the outer edge of the outer frame is fitted with the outer edge of the main body, the middle plate is small in size and is located in the outer frame, and an operating space is arranged between the inner edge of the outer frame and the outer edge of the flip cover.

[0019] By adopting the above technical solution, it is convenient for users to unzip to open the trolley case, and the flip cover shall not be too thick, so as to avoid the need to reserve a wider operating space.

[0020] Further, the bottom of the outer frame is provided with grooves in which casters are arranged.

[0021] By adopting the above technical solution, compared with a structure in which casters are all installed on the bottom of the main body, this structure is more stable, and the trolley case is not easy to roll to one side.

[0022] Further, the front cover structure is communicated with the accommodating space in the main body.

[0023] Compared with the prior art, the disclosure has the advantages that: 1. the trolley case structure easy to replace and install a front cover is formed by respectively making new molds for production of and assembling the outer frame and the middle plate structure, the middle plate is small in size compared with the front cover of the existing two-sided flip-type luggage case, and to change the shape of the trolley case, only the middle plate needs to make a new mold for production, thus reducing the production cost; 2. trolley cases with different appearances can be manufactured conveniently; 3. zippers between the middle plate and the front cover structure and between the main body and the front cover structure are arranged in the same plane, and the production technology is simple; 4. the outer frame is matched with the detachable middle plate, which changes the traditional design of trolley cases and makes the trolley case beautiful, convenient and practical.Description of Drawings

[0024] Fig. 1 is a three-dimensional structural schematic diagram of the disclosure in a disassembled state. Fig. 2 is a back structural schematic diagram of the disclosure in a disassembled state. Fig. 3 is a side structural schematic diagram of the disclosure in a disassembled state. Fig. 4 is a side structural schematic diagram of the disclosure in an assembled state. Fig. 5 is a front structural schematic diagram of the disclosure in an assembled state. Fig. 6 is a structural schematic diagram of a clamping groove of the disclosure. Fig. 7 is a structural schematic diagram of a clamping strip of the disclosure. Detailed Description

[0025] The disclosure is further described below in detail in combination with the drawings and embodiments.

[0026] Embodiment 1: as shown in Fig. 1 to Fig. 7, a front-opening trolley case with an easy-to-assemble front cover comprises a main body 1, one side of the main body 1 is provided with a front cover structure, the front cover structure comprises a middle plate and an outer frame 4, the outer frame 4 is arranged at the periphery of the middle plate, the middle plate comprises a flip cover 3 and a front cover frame body 2, the flip cover 3 and the front cover frame body 2 realize the opening and closing of the front cover structure by a zipper located in the same plane, the front cover frame body 2 is detachably connected with the outer frame 4, and the outer frame 4 is connected with the main body 1 through a zipper structure.

[0027] On the basis of embodiment 1, the flip cover 3 and the front cover frame body 2 both have a plate-like structure with a certain thickness to form a middle plate structure with an accommodating space.

[0028] On the basis of embodiment 1, the outer frame 4 is connected with the front cover frame body 2 through a fastening structure, the fastening structure comprises a clamping groove 202 and a clamping strip 401, the clamping groove 202 is arranged on the front cover frame body 2, the clamping strip 401 is arranged on the inner side of the outer frame 4, and the clamping strip 401 is matched with the clamping groove 202 in shape.

[0029] On the basis of embodiment 1, a connecting edge 201 is arranged at the periphery of the front cover frame body 2, the connecting edge 201 and the outer frame 4 are provided with screw holes in corresponding positions and fixed by bolts, and the clamping groove 202 is located between the connecting edge 201 and the front cover frame body 2.

[0030] On the basis of embodiment 1, both sides of the bottom of the outer frame 4 are respectively provided with grooves 5, both sides of the bottom of the main body 1 are respectively provided with grooves, and casters are arranged in the grooves.

[0031] On the basis of embodiment 1, the outer edge of the outer frame 4 is fitted with the outer edge of the main body 1, the middle plate is relatively small in size and is arranged in the outer frame 4, and an operating space is arranged between the inner edge of the outer frame 4 and the outer edge of the flip cover 3.

[0032] On the basis of embodiment 1, the front cover structure is communicated with the accommodating space in the main body 1.

[0033] On the basis of embodiment 1, one side of the main body 1 is provided with a lifting handle.

[0034] Although preferred embodiments of the disclosure are described in detail above, it should be clearly understood that for those skilled in the art, various variations and changes can be made to the disclosure. Any modification, equivalent replacement and improvement made within the spirit and the principle of the disclosure shall be included within the protection scope of the disclosure.

Examples

embodiment 1

[0026] as shown in Fig. 1 to Fig. 7, a front-opening trolley case with an easy-to-assemble front cover comprises a main body 1, one side of the main body 1 is provided with a front cover structure, the front cover structure comprises a middle plate and an outer frame 4, the outer frame 4 is arranged at the periphery of the middle plate, the middle plate comprises a flip cover 3 and a front cover frame body 2, the flip cover 3 and the front cover frame body 2 realize the opening and closing of the front cover structure by a zipper located in the same plane, the front cover frame body 2 is detachably connected with the outer frame 4, and the outer frame 4 is connected with the main body 1 through a zipper structure.

[0027]On the basis of embodiment 1, the flip cover 3 and the front cover frame body 2 both have a plate-like structure with a certain thickness to form a middle plate structure with an accommodating space.

[0028]On the basis of embodiment 1, the outer frame 4 is connected wi...

Claims

1. A front-opening trolley case with a front cover, comprising a main body (1), one side of the main body (1) is provided with a front cover structure, the front cover structure comprises a middle plate and an outer frame (4), and the middle plate is detachably connected with the outer frame (4).

2. The front-opening trolley case according to claim 1, wherein the outer frame (4) is arranged at the periphery of the middle plate, the middle plate comprises a flip cover (3) and a front cover frame body (2), the front cover frame body (2) is detachably connected with the outer frame (4), and the outer frame (4) is connected with the main body (1) through a zipper structure.

3. The front-opening trolley case according to claim 2, wherein a fastening structure is arranged between the outer frame (4) and the front cover frame body (2).

4. The front-opening trolley case according to claim 3, wherein the fastening structure comprises a clamping groove (202) and a clamping strip (401), the clamping groove (202) is arranged on the front cover frame body (2), the clamping strip (401) is arranged on the inner side of the outer frame (4), and the clamping strip (401) is matched with the clamping groove (202) in shape.

5. The front-opening trolley case according to any one of claims 2 - 4, wherein a connecting edge (201) is arranged at the periphery of the front cover frame body (2), and the connecting edge (201) and the outer frame (4) are provided with screw holes in corresponding positions and fixed by bolts.

6. The front-opening trolley case according to any one of claims 2-5, wherein the flip cover (3) and the front cover frame body (2) are connected by a zipper arranged in the same plane to realize the opening and closing of the front cover structure.

7. The front-opening trolley case according to any one of claims 2-6, wherein the flip cover (3) and the front cover frame body (2) both have a plate-like structure with a certain thickness and are combined to form a middle plate structure with an accommodating space.

8. The front-opening trolley case according to any one of claims 2-7, wherein the outer edge of the outer frame (4) is fitted with the outer edge of the main body (1), and an operating space is arranged between the inner edge of the outer frame (4) and the outer edge of the flip cover (3).

9. The front-opening trolley case according to any one of claims 1 - 8, wherein the bottom of the outer frame (4) is provided with grooves (5) in which casters are arranged.

10. The front-opening trolley case according to any one of claims 1-9, wherein the front cover structure is communicated with the accommodating space in the main body (1).

Citation Information

Patent Citations

  • Luggage case

    CN212345639U

  • Suitcase with hard base and soft cover

    US20120160626A1

  • Hard suitcase

    CN203388397U

  • Suitcase with a detachable portion

    EP3488727B1

  • Portable modular bag

    KR101978188B1