Case, plastic frame and fastener connection structure

Abstract

A connecting structure of a box shell, a plastic frame and a fastener is provided. [Solution] A plastic frame (2) is installed around the edge of the opening of the box case (1) and is engaged with the opening edge. A lower groove is provided at the bottom of the plastic frame to fit the opening edge, and the lower groove is engaged with the opening edge. An upper groove is provided at the top of the plastic frame to fit a zipper (3). The upper groove is positioned inward of the lower groove, and when projected onto a plane, the upper groove overlaps with a portion of the lower groove. The zipper fabric is engaged in the upper groove, and a suture thread passes through and secures the plastic frame, zipper, and box case. A concealing groove is provided on the outer surface of the plastic frame to fit the plastic frame. The suture thread is located in the concealing groove, and concealing tape is inserted into the concealing groove to hide the suture thread. The suture thread secures the box case, plastic frame, and zipper firmly and makes them less likely to fall off. The concealing tape also conceals the suture thread, improving the aesthetic appearance of the outer surface of the box case.

Description

[Technical Field]

[0001] The present invention relates to the technical field of box packaging, and more particularly to a connecting structure of a box packaging case, a plastic frame and a zipper. [Background technology]

[0002] Suitcase cases typically have two shells, one of which is connected by a hinge, and the remaining edges are connected by a zipper. Conventional methods involve sewing the zipper directly to the shell. However, this method, especially for soft cases, leaves no support at the zipper connection point, making the shell prone to sagging and resulting in poor opening and closing of the zipper. To address this issue, conventional techniques have adopted a method of attaching a supporting plastic frame to the edges of the case. The plastic frame is made of a plastic material with a certain hardness and rigidity, and the zipper is then attached to the plastic frame. To avoid the unsightly appearance of stitching, adhesive is typically used to secure the shell, plastic frame, and zipper together, but this adhesive is prone to wear over time. Summary of the Invention [Problem to be solved by the invention]

[0003] To solve the above-mentioned shortcomings in the prior art, the present invention proposes a connecting structure of a box shell, a plastic frame and a fastener. [Means for solving the problem]

[0004] In order to achieve the above technical effects, the present invention adopts the following configurations: The connecting structure for a box shell, a plastic frame, and a fastener includes a box shell, a fastener, and a plastic frame connecting the box shell and the fastener, the plastic frame being installed around the edge of the opening of the box shell and engaging with the opening edge. The lower end of the plastic frame is provided with a lower engaging groove that fits the opening edge and engages with the opening edge, and the upper end of the plastic frame is provided with an upper engaging groove that fits the fastener, the upper engaging groove being positioned inward of the lower engaging groove and overlapping a portion of the lower engaging groove when projected onto a plane on which the lower engaging groove exists. The fabric of the fastener is inserted into the upper engaging groove and secured by a suture that passes through the plastic frame, fastener, and box shell.

[0005] A concealment groove is provided on the outer surface of the plastic frame, running around the plastic frame, the suture is positioned within the concealment groove, and a concealment tape is inserted into the concealment groove to conceal the suture. In a preferred technical solution, limiting grooves are provided on the inner walls on both sides of the concealing groove, and the concealing tape includes a shielding portion that covers the outside of the concealing groove, an insertion portion that is inserted into the concealing groove, and a limiting portion that protrudes from the insertion portion and is inserted into the limiting groove.

[0006] In a preferred technical solution, the inner wall of the plastic frame is further provided with a connecting groove running around the entire circumference, a connecting tape is inserted into the connecting groove, and the connecting tape has a section for sewing the lining fabric of the box case.

[0007] In a preferred technical solution, the connecting groove has an inwardly concave "T"-shaped structure, and the connecting tape includes a "T"-shaped portion that is fitted and inserted into the connecting groove, and a connecting portion that is fixedly connected to the "T"-shaped portion, and the connecting portion is used to sew the lining fabric of the box. [Effects of the Invention]

[0008] The beneficial effects compared to the prior art are as follows: This device has a simple structure and is easy to use. The plastic frame is attached to the edge of the case shell via the lower groove, and the zipper fabric is inserted into the upper groove of the plastic frame and then sewn in place with a suture. The suture is then hidden by inserting a concealing tape into the shielding groove on the outside of the plastic frame. This firmly secures the case shell, plastic frame, and zipper, making them less likely to fall off, and also conceals the suture, improving the appearance of the case. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a cross-sectional view of the present invention. [Figure 2] FIG. 2 is a schematic diagram of an enlarged structure of part A in FIG. [Figure 3] 1 is a cross-sectional view of a plastic frame according to the present invention; [Explanation of symbols]

[0010] 1, case case case, 2, plastic frame, 3, zipper, 4, lower card slot, 5, upper card slot, 6, concealment groove, 7, masking tape, 8, limit groove, 9, shielding part, 10, insertion part, 11, limit part, 12, connecting groove, 13, connecting adhesive tape, 14, "T" shaped part, 15, connecting part. DETAILED DESCRIPTION OF THE INVENTION

[0011] The technical solutions of the present invention will be described below clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, however, the described embodiments are only a part of the present invention and do not represent all the embodiments.

[0012] The connecting structure for a box shell, plastic frame, and zipper of the present invention includes a box shell 1, a zipper 3, and a plastic frame 2 connecting the box shell 1 and the zipper 3. The plastic frame 2 is circumferentially arranged along the edge of the opening of the box shell 1 and is engaged with the edge of the opening. The lower end of the plastic frame 2 is provided with a lower groove 4 that fits into the edge of the opening and is engaged with the edge of the opening. The upper end of the plastic frame 2 is provided with an upper groove 5 that fits into the zipper 3, which is positioned inward of the lower groove 4 and overlaps with part of the lower groove 4 when projected onto the plane in which the lower groove 4 is located. The fabric of the zipper 3 is engaged in the upper groove 5 and is fixed by a suture that passes through the plastic frame 2, zipper 3, and box shell 1.

[0013] The plastic frame 2 is fastened to the edge of the box shell 1 via the lower groove 4, and the fabric of the zipper 3 is inserted into the upper groove 5 of the plastic frame 2. The suture then passes from the outside of the plastic frame 2 through the part of the box shell 1 located in the lower groove 4, and then through the fabric part of the zipper 3 in the upper groove 5, and is sewn and fixed inside the plastic frame 2. This firmly secures the box shell 1, plastic frame 2, and zipper 3, creating a structure that is difficult to fall off.

[0014] A concealing groove 6 is provided around the outer surface of the plastic frame 2, the suture is positioned within the concealing groove 6, and a concealing tape 7 is inserted within the concealing groove 6 to hide the suture.

[0015] By fitting the concealing tape 7 into the concealing groove on the outside of the plastic frame 2, the suture thread is covered, and the appearance of the box package can be made more beautiful while hiding the suture thread. In a preferred embodiment, limiting grooves 8 are provided on the inner walls on both sides of the concealing groove 6, and the concealing tape includes a concealing portion 9 that covers the outside of the concealing groove 6, an insertion portion 10 that is inserted into the concealing groove 6, and a limiting portion 11 that protrudes above the insertion portion 10 and is inserted into the limiting groove 8. A notch is provided at a certain position of the concealing groove 6, and the concealing groove 6 has a cross section through which the concealing tape 7 can be inserted. The concealing tape 7 can slide within the concealing groove 6, and is restricted within the concealing groove 6 by the engagement between the limiting groove 8 and the limiting portion 11.

[0016] In a further preferred embodiment, a connecting groove 12 is provided around the inner wall of the plastic frame 2, a connecting tape 13 is inserted into the connecting groove 12, and a portion for sewing the lining fabric of the box case is provided on the connecting tape 13. A notch is provided at a portion of the connecting groove 12, so that the connecting groove 12 has a cross section through which the connecting tape 13 can be inserted.

[0017] Usually, the lining inside the box case is fixed by sewing or gluing, but this method makes it difficult to remove the lining and inconvenient to clean after it gets dirty. According to this solution, the lining is sewn to the connecting tape 13, and the connecting tape 13 is inserted into the connecting groove 12 to be detachably connected to the box case shell 1. By pulling the connecting tape 13 out of the connecting groove 12, the lining can be removed from the box case shell 1 and washed separately.

[0018] In a further preferred embodiment, the connecting groove 12 has an inwardly concave "T"-shaped structure, and the connecting tape 13 includes a "T"-shaped portion 14 that is fitted and inserted into the connecting groove 12, and a connecting portion 15 that is fixedly connected to the "T"-shaped portion 14, and the connecting portion 15 is used to sew the lining fabric of the box case.

[0019] In describing this device, the terms "upper," "lower," "top," "bottom," "inner," "outer," and other positional relationships are based on the positional relationships shown in the accompanying drawings, or the normal positional relationships when this product is in use, or positional relationships known to those skilled in the art. These are used solely for ease of explanation and do not necessarily mean that the device must be configured or operated in a specific orientation, nor do they limit the scope of this device.

[0020] Furthermore, the terms "first," "second," etc. are used for descriptive purposes only and do not indicate relative importance or imply a number for the technical features described. Thus, features qualified by "first" or "second" may expressly or implicitly include one or more. In the description of the invention, "plurality" means two or more unless otherwise specified.

[0021] Based on the embodiments of the present invention, all other embodiments that can be obtained by those skilled in the art without any creative work fall within the protection scope of the present invention.

Claims

1. A connecting structure for a box shell, a plastic frame, and a fastener, comprising: a box shell (1), a fastener (3), and a plastic frame (2) connecting the box shell (1) and the fastener (3), wherein the plastic frame (2) is arranged around the edge of the opening of the box shell (1) and is engaged with the edge of the opening; a lower groove (4) is formed at the lower end of the plastic frame (2) that fits the edge of the opening; the lower groove (4) is engaged with the edge of the opening; and an upper groove (5) that fits the fastener (3) is formed at the upper end of the plastic frame (2), the upper groove (5) being disposed inward of the lower groove (4), and the projection of the upper groove (5) onto the plane in which the lower groove (4) is located overlaps with a part of the lower groove (4); the fabric of the fastener (3) is engaged in the upper groove (5) and is fixed by a suture that passes through the plastic frame (2), the fastener (3), and the box shell (1); A connecting structure characterized in that a concealing groove (6) is provided on the outer surface of the plastic frame (2) and runs around the plastic frame (2), the suture is positioned within the concealing groove (6), and a concealing tape (7) for concealing the suture is inserted within the concealing groove (6).

2. The connection structure described in claim 1, characterized in that a limiting groove (8) is provided on each inner wall on both sides of the concealing groove (6), and the shielding tape includes a shielding portion (9) covering the outside of the concealing groove (6), an insertion portion (10) inserted into the concealing groove (6), and a limiting portion (11) protruding above the insertion portion (10) and inserted into the limiting groove (8).

3. 2. The connection structure according to claim 1, characterized in that the inner wall of the plastic frame (2) is further provided with a connection groove (12) that runs around the plastic frame (2), a connection tape (13) is inserted into the connection groove (12), and a portion for sewing the lining of the box packaging is provided on the connection tape (13).

4. 4. The connecting structure according to claim 3, characterized in that the connecting groove (12) has an inwardly concave "T"-shaped structure, the connecting tape (13) includes a "T"-shaped portion (14) that is fitted and inserted into the connecting groove (12) and a connecting portion (15) that is fixedly connected to the "T"-shaped portion (14), and the connecting portion (15) is used to sew together the lining of the box package.

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