Box body outer shielding sheet capable of improving strength
By designing the outer cover with thick sides and the inner structure of the box shell with thick sides and the box shell, the problem of easy rupture of the outer line-type suitcase cover is solved, and the strength improvement and user experience is achieved, ensuring that the suitcase can be fully unfolded when flipped.
Patent Information
- Application Number
- CN202323539864.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-25
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-12-25
AI Technical Summary
The outer cover of the existing outer line-type suitcase is susceptible to impact, aging and flip, causing local tearing and cracking, and the thin cover is prone to cracking, resulting in the inability to use the suitcase, and the thicker cover cannot be fully unfolded during the flip process, which affects the impact of User experience.
Design a non-uniform cross-sectional outer cover with thick sides and thin between the two sides, fixed with the box sewing through the outer seam, and install telescopic pull rods, universal wheels and U-shaped pipe strips inside the box shell, combining zippers and internal shading. The sheet forms a flexible connection to ensure that the suitcase can be fully unfolded when flipped.
It improves the strength and aging resistance of the outer shading, ensures that the suitcase is not prone to break during flip and use, while maintaining a good user experience, reducing production costs and defect rate.
Smart Images
Figure CN222149270U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of box outer cover sheets, in particular to a box outer cover sheet capable of improving strength. Background Art
[0002] Zippered suitcases are divided into two types: those with hidden stitching and those with exposed stitching. The middle part of the outer cover of a hidden stitching suitcase is exposed, and the stitched parts on both sides are covered by external leather strips and are not exposed. The outer cover of an external stitching suitcase is usually completely exposed.
[0003] In the original structure of the existing luggage case with external stitching, the outer cover is fixed to the case body by the outer stitching and is exposed on the side of the case body, which is easily affected by impact and daily aging. During use, it is also easily overturned, twisted and partially torn and broken. Therefore, the thin outer cover is extremely easy to crack along the edge, making the entire suitcase unusable. If a thicker outer cover is used, the local strength will be effectively enhanced to play a role of aging resistance and tear resistance. However, the thicker outer cover cannot make the suitcase fully unfolded and laid flat during the overturning of the case body, which affects the use experience.
[0004] Therefore, it is necessary to provide a box outer cover with improved strength to solve the above technical problems. Utility Model Content
[0005] The utility model provides an outer cover sheet of a suitcase with improved strength, which solves the problem that in the original structure of the existing external stitching type suitcase, the outer cover sheet is fixed to the suitcase body through the outer stitching line and exposed at the side of the suitcase body, and is easily hit and aged daily; during use, it is also easily overturned, twisted and partially torn and broken; therefore, a thin outer cover sheet is extremely easy to crack along the edge, thereby making the entire suitcase unusable. If a thicker outer cover sheet is used, the local strength can be effectively enhanced, and the aging resistance and tear resistance can be achieved. However, due to the thicker outer cover sheet, the suitcase cannot be fully unfolded and laid flat during the overturning of the suitcase body, which affects the use experience.
[0006] In order to solve the above technical problems, the utility model provides: a box outer cover with improved strength, comprising a front box shell, a rear box shell is rotatably mounted on one side of the front box shell, a front cover is sewn at the connection between the outer walls of the front box shell and the rear box shell, the front cover has a cross-section that is thick on both sides and thin in the middle, external stitching is sewn on both sides of the front cover, a needle hole passes through one side of the front cover, and an inner cover is sewn at the connection between the inner walls of the front box shell and the rear box shell.
[0007] Preferably, an inner lining is sewn between the front box shell and the rear box shell, and a telescopic pull rod is slidably installed inside the front box shell.
[0008] Preferably, universal wheels are fixed on both sides of the bottom end of the rear box shell, and handles are fixed on the upper surface of the front box shell and one side outer wall of the front box shell.
[0009] Preferably, side foot nails are fixed to the outer walls of one side of the front box shell and the rear box shell and on both sides of the front cover.
[0010] Preferably, the outer walls of the front box shell and the rear box shell are both sewn with U-shaped tube strips, and one side of the two U-shaped tube strips is sewn with zippers.
[0011] Preferably, pull tabs are engaged on the outside of the two zippers, and a combination lock is fixed to an outer wall of one side of the rear box shell.
[0012] Compared with the related art, the box outer cover provided by the utility model with improved strength has the following beneficial effects:
[0013] Through the pull tab, one end of the zipper is passed through the middle part of the edge of the rear box shell and the front box shell respectively, and the rear box shell and the front box shell are flexibly connected through the bite of the zipper, and then the inner cover is pasted, and the front cover is fixed to the outer edge of the rear box shell and the front box shell. First, one side of the front cover is sewn and fixed to the rear box shell through the outer sewing line, and then the other edge of the front cover is sewn and fixed to the edge of the front box shell to complete the overall assembly. During the opening and merging process of the finished suitcase, the front cover, the partial length of the zipper and the inner cover will be used as the rotating central axis of a whole. The front cover itself is an integrated molding process, preferably extrusion molding and injection molding. The front cover improves product quality and life while taking into account a good product usage experience. The front cover reduces the product defective rate in the production process without additionally increasing material and process costs, thereby improving production efficiency and reducing production costs.
[0014] The cross section of the front mask itself is of non-uniform thickness, with thick sides and thin middle as its most prominent feature; there is no restriction on the transition method between the thick section and the thin section, and an arc-shaped transition is preferred to improve the overall strength. The thickness D1 of the thick sides is in the range of 1-5mm, and the thickness D2 of the thin middle is in the range of 0.5-2.5mm. The overall rotation angle R1 can satisfy free flipping between 90 and 180 degrees. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A schematic structural diagram of a preferred embodiment of a box outer cover capable of improving strength provided by the utility model;
[0016] Figure 2 for Figure 1 The schematic diagram of the internal structure of the front box shell and the rear box shell is shown;
[0017] Figure 3 for Figure 1 The schematic diagram of the opening angle structure of the outer cover is shown.
[0018] Numbers in the figure: 1. front box shell; 2. rear box shell; 3. telescopic pull rod; 4. universal wheel; 5. handle; 6. combination lock; 7. pull tab; 8. side foot nails; 9. U-shaped tube; 10. zipper; 11. outer stitching; 12. front cover; 13. inner cover; 14. lining; 15. pinhole. DETAILED DESCRIPTION
[0019] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.
[0020] Please refer to Figure 1-Figure 3 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of a box outer cover capable of improving strength provided by the utility model; Figure 2 for Figure 1 The schematic diagram of the internal structure of the front box shell and the rear box shell is shown; Figure 3 for Figure 1 A box outer cover with improved strength comprises a front box shell 1, a rear box shell 2 is rotatably mounted on one side of the front box shell 1, a front cover 12 is sewn at the connection between the outer walls of the front box shell 1 and the rear box shell 2, the front cover 12 is in the shape of a cross-section with thick sides and a thin middle, outer sewing threads 11 are sewn on both sides of the front cover 12, a needle hole 15 is penetrated on one side of the front cover 12, and an inner cover 13 is sewn at the connection between the inner walls of the front box shell 1 and the rear box shell 2;
[0021] The front cover 12 itself is formed in one piece, preferably by extrusion molding or injection molding.
[0022] The front mask 12 improves product quality and lifespan while also providing a good product experience;
[0023] The front mask 12 reduces the product defect rate in the production process without adding extra material and process costs, thereby improving production efficiency and reducing production costs.
[0024] The cross section of the front mask 12 itself is of non-uniform thickness, with thick sides and thin middle as its most prominent feature; the transition method between the thick section and the thin section is not limited, and an arc transition is preferably used to improve the overall strength. The thickness D1 of the thick sides is in the range of 1-5mm, and the thickness D2 of the thin middle is in the range of 0.5-2.5mm. The overall rotation angle R1 can meet the requirement of free flipping between 90 and 180 degrees.
[0025] The interior of the front box shell 1 and the rear box shell 2 are sewn with an inner lining 14 , and a telescopic pull rod 3 is slidably installed inside the front box shell 1 .
[0026] Universal wheels 4 are fixed to both sides of the bottom end of the rear box shell 2, and handles 5 are fixed to the upper surface of the front box shell 1 and one side outer wall of the front box shell 1.
[0027] Side foot nails 8 are fixed to the outer walls of one side of the front box shell 1 and the rear box shell 2 and located on both sides of the front cover 12 .
[0028] The outer walls of the front box shell 1 and the rear box shell 2 are both sewn with U-shaped tube strips 9 , and one side of the two U-shaped tube strips 9 is sewn with zippers 10 .
[0029] The outsides of the two zippers 10 are engaged with pull tabs 7 , and a combination lock 6 is fixed to one side outer wall of the rear box shell 2 .
[0030] The working principle of the box outer cover with improved strength provided by the utility model is as follows:
[0031] The external stitch type luggage case is usually composed of a front case shell 1 and a rear case shell 2 which are connected by a zipper 10 to form a luggage case with basic functions. The front case shell 1 is equipped with universal wheels 4 and side foot nails 8. The lining 14 is sewn to the inner edge of the front case shell 1. The U-shaped pipe strip 9 wraps the edge of the front case shell 1 and the edge of the lining 14. One side of the zipper 10 is attached to the inner edge of the U-shaped pipe strip 9. One side of the zipper 10, the U-shaped pipe strip 9 and the wrapped lining 14 are simultaneously fixed to the edge of the front case shell 1 by an external stitching line 11.
[0032] The rear box shell 2 is equipped with a telescopic pull rod 3, a handle 5, a password lock 6 and side foot nails 8. The lining 14 is sewn to the inner edge of the rear box shell 2. The U-shaped tube strip 9 wraps the edge of the rear box shell 2 and the edge of the lining 14. The other side of the zipper 10 is attached to the inner edge of the U-shaped tube strip 9. The other side of the zipper 10, the U-shaped tube strip 9 and the wrapped lining 14 are simultaneously fixed to the edge of the rear box shell 2 through the external sewing line 11.
[0033] Through the pull tab 7, one end of the zipper 10 is passed through the middle part of the edge of the rear shell 2 and the front shell 1 respectively, and the rear shell 2 and the front shell 1 are flexibly connected by the engagement of the zipper 10, and then the inner cover 13 is pasted, and the front cover 12 is fixed to the outer edge of the rear shell 2 and the front shell 1. First, one side of the front cover 12 is sewn and fixed to the rear shell 2 through the outer sewing line 11, and then the other edge of the front cover 12 is sewn and fixed to the edge of the front shell 1 to complete the overall assembly. During the opening and merging process of the finished suitcase, the front cover 12, the partial length of the zipper 10 and the inner cover 13 will be used as the rotation center axis of a whole.
[0034] Compared with the related art, the box outer cover provided by the utility model with improved strength has the following beneficial effects:
[0035] The pull tab 7 is passed through one end of the zipper 10 from the middle part of the edge of the rear box shell 2 and the front box shell 1 respectively, and the rear box shell 2 and the front box shell 1 are flexibly connected by the bite of the zipper 10, and then the inner cover 13 is pasted, and the front cover 12 is fixed to the outer edge of the rear box shell 2 and the front box shell 1. First, one side of the front cover 12 is sewn and fixed to the rear box shell 2 by the outer sewing line 11, and then the other edge of the front cover 12 is sewn and fixed to the edge of the front box shell 1, and the overall assembly is completed. During the opening and merging process of the finished suitcase, the front cover 12, the local length of the zipper 10 and the inner cover 13 are used as the rotation axis of a whole. The front cover 12 itself is an integrated molding process, preferably extrusion molding and injection molding. The front cover 12 improves product quality and life while taking into account a good product usage experience. The front cover 12 reduces the product defective rate in the production process without additionally increasing material and process costs, thereby improving production efficiency and reducing production costs.
[0036] The cross section of the front mask 12 itself is of non-uniform thickness, with thick sides and thin middle as its most prominent feature; the transition method between the thick section and the thin section is not limited, and an arc transition is preferably used to improve the overall strength. The thickness D1 of the thick sides is in the range of 1-5mm, and the thickness D2 of the thin middle is in the range of 0.5-2.5mm. The overall rotation angle R1 can meet the requirement of free flipping between 90 and 180 degrees.
[0037] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A box outer cover with improved strength, comprising a front cover (12), a rear box shell (2) being rotatably mounted on one side of the front box shell (1), the front cover (12) being sewn to the connection between the outer walls of the front box shell (1) and the rear box shell (2), Features: The front cover (12) has a cross-section that is thick on both sides and thin in the middle. External stitching (11) is sewn on both sides of the front cover (12). A needle hole (15) is passed through one side of the front cover (12). An internal cover (13) is sewn at the connection between the inner walls of the front box shell (1) and the rear box shell (2).
2. A box outer matte with improved strength according to claim 1, It is characterized in that An inner lining (14) is sewn between the front box shell (1) and the rear box shell (2), and a telescopic pull rod (3) is slidably installed inside the front box shell (1).
3. A box outer matte with improved strength according to claim 2, It is characterized in that Universal wheels (4) are fixed on both sides of the bottom end of the rear box shell (2), and handles (5) are fixed on the upper surface of the front box shell (1) and one side outer wall of the front box shell (1).
4. A box outer matte with improved strength according to claim 3, It is characterized in that Side foot nails (8) are fixed to the outer walls of one side of the front box shell (1) and the rear box shell (2) and located on both sides of the front cover (12).
5. A box outer matte with improved strength according to claim 4, It is characterized in that The outer walls of the front box shell (1) and the rear box shell (2) are both sewn with U-shaped tube strips (9), and one side of the two U-shaped tube strips (9) is sewn with a zipper (10).
6. A box outer matte with improved strength according to claim 5, It is characterized in that The two zippers (10) are externally engaged with pull tabs (7), and a combination lock (6) is fixed to one side outer wall of the rear box shell (2).