One-step formed luggage case with raised case cover and manufacturing method of one-step formed luggage case

Abstract

The invention relates to the field of luggage, in particular to a one-step formed luggage case with a protruding case cover and a manufacturing method thereof.The one-step formed luggage case comprises a case body, the case cover and a connecting piece, the case body is provided with a case opening and a case opening protruding edge extending outwards, and the end of the case cover is provided with a case cover protruding edge extending outwards; the box body, the box opening protruding edge, the box cover body and the box cover protruding edge are integrally formed. The box opening convex edge is connected with the box cover convex edge through the connecting piece; the manufacturing method comprises the steps that the box shell is manufactured through a plastic uptake technology, and the box body and the box opening protruding edge are integrally formed with the box cover body and the box cover protruding edge; the box opening convex edge and the box cover convex edge are divided into two independent parts from the interface; the box body and the box cover are connected through the zipper, so that the processing difficulty of the box body can be reduced, and the accommodating space of the luggage box and the effective use area of the box opening can be expanded; the zipper does not need to be directly installed on the box opening in the top wall of the box body, so that the zipper is sewn more easily and is more attractive.

Description

Technical Field

[0001] The invention relates to the field of luggage, and in particular to a one-step formed suitcase with a raised cover and a manufacturing method thereof. Background Art

[0002] Front-opening suitcases are widely used because they are convenient for taking items when traveling. For example, the utility model patent with application number CN202323428918.X discloses a front-opening suitcase, including a box body, the front side of which is provided with an integrally formed front cover, and one end of the front cover is rotatably connected to the box body, and the movable end of the front cover is detachably connected to the box body. In order to facilitate processing and save materials, the existing front-opening suitcases are processed by first making the top wall of the box body into a flat top wall, and then cutting a piece of siding material in the middle of the flat box body. The holes formed after cutting the siding material can be made into the box opening of the suitcase through trimming and edging, and the cut siding material is made into a front cover after trimming and edging, and then the front cover is sewn between the box lid and the box opening through a zipper. However, there are the following problems in the production of such boxes: First, the existing front cover is a piece of wall material cut from the middle of the flat top wall. In order to ensure the rigidity of the top wall, the box opening must be indented by more than 3 cm when cutting, thus limiting the size of the opening; in addition, since the cutting is done on a complete box, the edges of the box opening and the box shell must be trimmed and hemmed after cutting, so a margin must be left at the opening, further limiting the size of the opening. Second, in the existing front-opening box, when the box cover is installed with a zipper, a ring-shaped inner edge must be set on the inner wall of the box opening to fix the zipper. When the zipper or lining is fixed to the box shell by sewing, the setting of the ring-shaped inner edge will further limit the usable area of ​​the box opening. Third, when the edges of the box mouth and the box shell are hemmed and sewn, the zipper or lining needs to be fixed on the inner edge of the ring, which forms a "mouth" similar to the inner "回" character. When the zipper or lining is sewn on the edge of the "mouth", due to the narrow space and being blocked by the side wall of the box, the whole process of hemming and sewing must be done with a modified special sewing machine. The sewing speed is slow, the output is low, the cost is higher, and there are certain technical difficulties. Fourth, the front cover flush with the top wall further limits the volume of the box, limits the outward expansion of the box's storage space and the effective use area of ​​the box mouth. Therefore, how to increase the box mouth area and the use area of ​​the box mouth as much as possible while saving raw materials, while reducing the processing difficulty of the box, increasing the volume of the box, and improving the convenience of zipper installation and the beauty of the suitcase are problems that the luggage industry urgently needs to solve. In view of this, this case is generated. Summary of the invention

[0003] To overcome the deficiencies in the prior art, the suitcase with a one-piece raised lid disclosed in the present invention includes a box body, a lid and a connecting member. The box body is provided with a box opening and a box opening flange, and the box opening flange is arranged outside the box opening and extends towards the outside of the box opening. The end of the lid is provided with a lid flange extending outwards. The box body and the box opening flange are integrally formed with the lid body and the lid flange; the connecting member connects the box opening flange and the lid flange; the box body includes an upper box body and a lower box body, and the upper box body and the lower box body are fixedly connected by fixing members; the present invention can reduce the processing difficulty of the box body, expand the storage space of the suitcase and the effective use area of the box opening; the zipper does not need to be directly installed on the box opening of the top wall of the box body, making it easier and more aesthetically pleasing to sew the zipper.

[0004] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A suitcase with a one-piece raised lid, including a box body, characterized in that: it further includes a lid and a connecting member. The box body is provided with a box opening and a box opening flange. The box opening flange is arranged outside the box opening and extends towards the outside of the box opening. The end of the lid is provided with a lid flange extending outwards. The box body and the box opening flange are integrally formed with the lid body and the lid flange, and the connecting member connects the box opening flange and the lid flange.

[0006] The connecting member is a zipper, and the two tape strips of the zipper are respectively connected to the box opening flange and the lid flange.

[0007] The box body includes an upper box body and a lower box body. The upper box body is a hollow body that penetrates up and down, with its upper end being the box opening and its lower end being an open mouth. The lower box body is a hollow body with an open mouth at the upper end. The upper box body is placed above the lower box body, and the open mouth of the upper box body and the open mouth of the lower box body are arranged opposite to each other and connected to each other.

[0008] The cross-sectional dimension of the box opening at the upper end of the upper box body can be smaller than the cross-sectional dimension of the open mouth at its lower end, or the cross-sectional dimension of the box opening at the upper end can be larger than the cross-sectional dimension of the open mouth at its lower end.

[0009] The upper box body and the lower box body are fixedly connected by fixing members.

[0010] The fixing member includes a flexible clamping strip and a sewing thread. The flexible clamping strip is fitted on the open mouths of the upper box body and the lower box body, and the flexible clamping strip, the upper box body and the lower box body are fixedly connected by the sewing thread. Alternatively, the fixing member includes a rigid mouth frame and rivets. The rigid mouth frame is in two pieces and is respectively placed outside the open mouth of the upper box body and inside the open mouth of the lower box body, and the rigid mouth frame, the upper box body and the lower box body are fixedly connected by rivets.

[0011] The lid covers the box opening of the upper box body to form a raised part of the box body.

[0012] The manufacturing method of the one-piece formed trunk with a raised lid is characterized by the following steps:

[0013] Step 1, prepare the trunk shell, which is prepared by the thermoforming process, so that the trunk body and the trunk opening flange and the lid body and the lid flange are integrally formed; The preparation of the trunk shell in Step 1 includes the following steps: Step a, plate making, extruding the trunk shell plate by the extrusion molding method; Step b, thermoforming, fixing the plate on the vacuum forming machine, and respectively thermoforming the shell blanks of the upper trunk and the lower trunk by the vacuum forming machine. When the shell blank of the upper trunk (11) is thermoformed, the upper trunk (11) body and the trunk opening flange (100) and the lid (2) body and the lid flange (200) are integrally formed. The lower end of the shell blank of the upper trunk is open, and the upper end of the shell blank of the lower trunk is open.

[0014] Step 2, cutting, fix the trunk shell, and cut it horizontally from the interface between the trunk opening flange and the lid flange by a cutting machine. After cutting, the trunk and the lid are divided into two separate parts. The trunk opening flange is arranged on the trunk, and the lid flange is arranged on the lid;

[0015] Step 3, assembly, connect the trunk opening flange and the lid flange through a connecting piece. In Step 3, a zipper is used to connect the trunk and the lid, and the two tape strips of the zipper are respectively sewn on the trunk opening flange and the lid flange.

[0016] As can be seen from the above description, the advantages of the one-piece formed trunk with a raised lid and its manufacturing method provided by the present invention are as follows: There is a trunk opening and an outwardly protruding trunk opening flange on the trunk, and an outwardly protruding lid flange is arranged on the lid. The trunk body and the trunk opening flange and the lid body and the lid flange are integrally formed by the thermoforming process, and then cut horizontally from the interface between the trunk opening flange and the lid flange by a cutting machine and divided into two separate parts. The lid does not need to be cut out longitudinally. Horizontal cutting can maximize the expansion of the trunk opening; The zipper is sewn on the trunk opening flange and the lid flange, and the trunk opening flange and the lid flange are connected by the zipper, and then a trunk with a raised lid can be made, thereby reducing the processing difficulty of the trunk, expanding the storage space of the trunk and the effective use area of the trunk opening; The zipper does not need to be directly installed on the trunk opening on the top wall of the trunk, making the sewing of the zipper easier and more aesthetic. The present invention has a reasonable design, a simple structure, a low cost, and is convenient for popularization. Description of the Drawings

[0017] Figure 1 It is the overall schematic diagram of the one-piece formed trunk with a raised lid described in the present invention;

[0018] Figure 2 is Figure 1Schematic diagram when the cross-sectional dimension of the box opening at the upper end of the upper box body in the A-A section is smaller than that of the open end at its lower end;

[0019] Figure 3 is Figure 1 Schematic diagram when the cross-sectional dimension of the box opening at the upper end of the upper box body in the A-A section is larger than that of the open end at its lower end;

[0020] Figure 4 Schematic diagram of the state when the box cover is open;

[0021] Figure 5 Schematic diagram after integrally forming the upper box body and the box opening flange with the box cover body and the box cover flange when manufacturing the box shell in the state where the cross-sectional dimension of the box opening at the upper end of the upper box body is smaller than that of the open end at its lower end;

[0022] Figure 6 Schematic diagram after integrally forming the upper box body and the box opening flange with the box cover body and the box cover flange when manufacturing the box shell in the state where the cross-sectional dimension of the box opening at the upper end of the upper box body is larger than that of the open end at its lower end.

[0023] Reference numerals:

[0024] 1 Box body; 11 Upper box body; 12 Lower box body; 100 Box opening flange; 300 Box opening; 2 Box cover; 200 Box cover flange; 3 Connecting member; P Interface. Detailed implementation manners

[0025] The present invention will be further described below through specific implementation manners.

[0026] Embodiment 1:

[0027] As Figure 1 、 Figure 2 and Figure 4As shown in the figure, the suitcase with a one-piece formed lid with protrusions of the present invention includes a box body 1, a lid 2 and a connecting member 3. The box body 1 includes an upper box body 11 and a lower box body 12. The upper box body 11 is a cavity body that is open top and bottom. Its upper end is provided with a box opening 300 and a box opening flange 100 extending outward from the box opening 300. Its lower end is an open end, and the cross-sectional dimension of the box opening 300 at the upper end of the upper box body 11 is smaller than the cross-sectional dimension of the open end at its lower end. The lower box body 12 is a cavity body with an open end at the upper end. The upper box body 11 is placed above the lower box body 12. The open ends of the upper box body 11 and the lower box body 12 are arranged opposite to each other and are fixedly connected to each other through fixing members. The fixing members include a flexible clamping strip and a sewing thread. The flexible clamping strip is a flat strip-shaped member with a cross-section that is repeatedly laminated in multiple segments. The flexible clamping strip is fitted on the open ends of the upper box body 11 and the lower box body 12, and the flexible clamping strip, the upper box body 11 and the lower box body 12 are fixedly connected by the sewing thread. Alternatively, the fixing members include a rigid mouth frame and rivets. The rigid mouth frame can be a square aluminum frame. There are two pieces of the rigid mouth frame, which are respectively placed on the outside of the open end of the upper box body 11 and the inside of the open end of the lower box body 12, and the rigid mouth frame, the upper box body 11 and the lower box body 12 are fixedly connected by rivets.

[0028] As Figures 1 to 3 shown in the figure, the end of the lid 2 of the present invention is provided with a lid flange 200 extending outward. The main body of the upper box body 11 and the box opening flange 100 of the box body 1 and the main body of the lid 2 and the lid flange 200 are integrally formed. The connecting member 3 connects the box opening flange 100 and the lid flange 200. The connecting member 3 is a zipper, and the two chain tapes of the zipper are respectively connected to the box opening flange 100 and the lid flange 200. The lid 2 covers the box opening 300 of the upper box body 11 to form a protruding part of the box body 1.

[0029] Embodiment 2:

[0030] As Figure 1 、 Figure 3 and Figure 4 shown in the figure, for the suitcase with a one-piece formed lid with protrusions of the present invention, except that the cross-sectional dimension of the box opening 300 at the upper end of the upper box body 11 is larger than the cross-sectional dimension of the open end at its lower end, the rest of the technical features are the same as those of Embodiment 1.

[0031] The manufacturing method of the suitcase with a one-piece formed lid with protrusions of the present invention includes the following steps:

[0032] First, prepare the box shell through the thermoforming process. The preparation of the box shell includes the following steps: Step a, plate making, extruding the box shell plate by the extrusion molding method; Step b, thermoforming, fixing the plate on a vacuum forming machine, and respectively thermoforming the shell blank of the upper box body 11 and the shell blank of the lower box body 12 through the vacuum forming machine. When the shell blank of the upper box body 11 is thermoformed, the main body of the upper box body 11 and the box mouth convex edge 100 are integrally formed with the main body of the box cover 2 and the box cover convex edge 200. The lower end of the shell blank of the upper box body 11 is open, and the shell blank of the upper box body 11 is seen Figure 2 and Figure 5 , or Figure 3 and Figure 6 , and the upper end of the shell blank of the lower box body 12 is open.

[0033] Then, cut. Fix the box shell, and cut horizontally from the interface P between the box mouth convex edge 100 and the box cover convex edge 200 through a cutting machine. After cutting, the upper box body 11 and the box cover 2 are divided into two separate components. The box mouth convex edge 100 is provided on the upper box body 11, and the box cover convex edge 200 is provided on the box cover 2;

[0034] Then, assemble. Connect the box mouth convex edge 100 and the box cover convex edge 200 through the connecting member 3. The connecting member 3 is a zipper, and the two tape strips of the zipper are respectively sewn on the box mouth convex edge 100 and the box cover convex edge 200.

[0035] For the suitcase with a one-piece formed box cover with protrusions according to the present invention, a box mouth 300 and an outwardly protruding box mouth convex edge 100 are provided on the box body 1, an outwardly protruding box cover convex edge 200 is provided on the box cover 2, and after the main body of the box body 1 and the box mouth convex edge 100 and the main body of the box cover 2 and the box cover convex edge 200 are integrally formed, they are transversely cut into two separate components, and then the box mouth convex edge 100 and the box cover convex edge 200 are connected by a zipper, so that a suitcase with an outwardly protruding box cover can be made, thereby reducing the processing difficulty of the box body, expanding the storage space of the suitcase and the effective use area of the box mouth; the zipper does not need to be directly installed on the box mouth of the top wall of the box body, making it easier and more aesthetically pleasing to sew the zipper.

[0036] The above are only two specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantive modification made to the present invention using this concept shall fall within the scope of infringement of the protection scope of the present invention.

Claims

1. A one-piece formed luggage case with a raised lid, comprising a case body (1), characterized in that: It further includes a box cover (2) and a connecting member (3). A box opening (300) and a box opening flange (100) are provided on the box body (1). The box opening flange (100) is arranged outside the box opening (300) and extends towards the outside of the box opening (300). An outwardly extending box cover flange (200) is provided at the end of the box cover (2). The box body (1) and the box opening flange (100) are integrally formed with the box cover (2) and the box cover flange (200). The connecting member (3) connects the box opening flange (100) and the box cover flange (200).

2. The trunk with a one-piece formed lid having protrusions according to claim 1, wherein: The connecting member (3) is a zipper, and the two chain tapes of the zipper are respectively connected to the box opening flange (100) and the box cover flange (200).

3. The trunk with a one-piece formed lid with protrusions according to claim 1, characterized in that: The box body (1) includes an upper box body (11) and a lower box body (12). The upper box body (11) is a cavity body that is vertically through, with its upper end being the box opening (300) and its lower end being an open end. The lower box body (12) is a cavity body with an open end at the upper end. The upper box body (11) is placed above the lower box body (12). The open ends of the upper box body (11) and the lower box body (12) are arranged opposite to each other and connected to each other.

4. The luggage case with a one-piece formed lid having a protrusion according to claim 3, wherein: The cross-sectional dimension of the box opening (300) at the upper end of the upper box body (11) is smaller than the cross-sectional dimension of the open end at its lower end.

5. The trunk with a one-piece lid having protrusions according to claim 3, characterized in that: The cross-sectional dimension of the box opening (300) at the upper end of the upper box body (11) is larger than the cross-sectional dimension of the open end at its lower end.

6. The suitcase with a one-piece formed lid having a protrusion according to claim 4 or 5, characterized in that: The upper box body (11) and the lower box body (12) are fixedly connected by fixing members.

7. The trunk with a one-piece lid having protrusions according to claim 6, characterized in that: The fixing member includes a flexible clamping strip and a sewing thread. The flexible clamping strip is fitted on the open ends of the upper box body (11) and the lower box body (12), and the flexible clamping strip, the upper box body (11) and the lower box body (12) are fixedly connected by the sewing thread.

8. The suitcase with a one-piece formed lid with protrusions according to claim 6, characterized in that: The fixing member includes a rigid mouth frame and rivets. The rigid mouth frame is in two pieces and is respectively placed outside the open end of the upper box body (11) and inside the open end of the lower box body (12), and the rigid mouth frame, the upper box body (11) and the lower box body (12) are fixedly connected by rivets.

9. The manufacturing method of the luggage with a one-piece formed lid with protrusions according to claim 1 to 7 or 8, characterized in that, It includes the following steps: Step 1, preparing the box shell, which is prepared by the thermoforming process to integrally form the box body (1) and the box opening flange (100) with the box cover (2) and the box cover flange (200). Step 2, cutting. Fix the box shell and cut it horizontally from the interface (P) between the box opening flange (100) and the box cover flange (200) by a cutting machine. After cutting, the box body (1) and the box cover (2) are divided into two separate components. The box opening flange (100) is arranged on the box body (1) and the box cover flange (200) is arranged on the box cover (2). Step 3, assembling, connecting the box opening flange (100) and the box cover flange (200) by the connecting member (3).

10. The manufacturing method of the luggage with a one-piece formed lid with protrusions according to claim 9, characterized in that, The preparation of the box shell in Step 1 includes the following steps: Step a, plate making, extruding the box shell plate by the extrusion molding method. Step b, thermoforming: Fix the sheet on a vacuum forming machine, and respectively thermoform the shell blanks of the upper box body (11) and the lower box body (12) through the vacuum forming machine. When the shell blank of the upper box body (11) is thermoformed, the main body of the upper box body (11) and the box mouth flange (100) are integrally formed with the main body of the box cover (2) and the box cover flange (200). The lower end of the shell blank of the upper box body (11) is open, and the upper end of the shell blank of the lower box body (12) is open.

11. The manufacturing method of the suitcase with a one-piece formed lid with protrusions according to claim 9, characterized in that, In step 3, a zipper is used to connect the box body (1) and the box cover (2), and the two chain tapes of the zipper are respectively sewn on the box mouth flange (100) and the box cover flange (200).

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