Breathable vamp with good wrapping strength
By setting a hot melt wire reinforcement layer on the TPU upper, the problem of insufficient support performance of the TPU upper is solved, better wrapping and breathability are achieved, and the production process is simplified.
Patent Information
- Application Number
- CN202421314797.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-06-11
AI Technical Summary
There are problems with the deformation of the TPU upper, which leads to insufficient support performance and inability to effectively protect the feet.
The first TPU reinforcement layer and the second TPU reinforcement layer are provided on the TPU upper to limit the deformation of the upper in the front and rear and left directions by laying the hot melt wire, thereby increasing the wrapping support performance.
By adding a TPU reinforcement layer, the wrapping support performance of the upper is improved, the production process is simplified, and the breathability and tidyness of the upper are maintained.
Smart Images
Figure CN222486385U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shoe uppers, in particular to a breathable shoe upper with good wrapping strength. Background Art
[0002] TPU upper is a thermoplastic upper, which is formed into a breathable upper with pores by hot pressing TPU hot melt line. TPU upper has advantages such as breathability and wear resistance, but also has disadvantages of poor support performance. TPU upper is easy to deform, and the deformation is large, and the wrapping support performance of the foot is poor, and it cannot protect the foot well. In the prior art, the deformation of the upper is generally limited by compounding leather sheets or webbing on the inner and outer sides of the TPU upper to improve the wrapping support performance of the upper. The wrapping of the TPU upper can be improved by compounding leather sheets or webbing, but the production process is complicated.
[0003] This case arises to solve the above problems. Utility Model Content
[0004] Therefore, in view of the above-mentioned problems, the utility model proposes a breathable shoe upper with good air permeability, good wrapping support performance and good wrapping strength.
[0005] In order to solve the above technical problems, the solution adopted by the utility model is: a breathable upper with good wrapping strength, comprising a TPU surface layer, a shoe opening and a shoe tongue opening are arranged on the TPU surface layer, and a first TPU reinforcement layer for limiting the deformation amount of the upper in the front-to-back direction and a second TPU reinforcement layer for limiting the deformation amount of the upper in the left-to-right direction are arranged on the TPU surface layer;
[0006] The first TPU reinforcement layer includes a plurality of first hot melt lines, which are located on both sides of the shoe opening and the shoe tongue opening and are laid in a wave shape in the middle of the TPU surface layer along the front-to-back direction;
[0007] The second TPU reinforcement layer includes a plurality of second hot-melt lines, a plurality of third hot-melt lines, and a plurality of fourth hot-melt lines. The second hot-melt lines, the third hot-melt lines, and the fourth hot-melt lines are all in a U-shape with the bottom facing the middle of the TPU surface layer and the two free ends facing the edge of the TPU surface layer and aligned with the edge. The second hot-melt lines, the third hot-melt lines, and the fourth hot-melt lines are all arranged on the inner and outer sides of the TPU surface layer along the inner and outer edges of the TPU surface layer; the third hot-melt line is arranged between adjacent second hot-melt lines; and the fourth hot-melt line is arranged inside the third hot-melt lines.
[0008] A further improvement is that a third TPU reinforcement layer is also arranged on the TPU surface layer, and the third TPU reinforcement layer includes a plurality of fifth hot melt lines, and the fifth hot melt lines are arranged in a wavy shape along the front-to-back direction on the second hot melt lines, the third hot melt lines, and the fourth hot melt lines.
[0009] A further improvement is that the length of the third thermal fuse line is shorter than that of the second thermal fuse line, and the length of the fourth thermal fuse line is shorter than that of the third thermal fuse line.
[0010] A further improvement is that: the laying area of the third TPU reinforcement layer located on the outer side of the TPU surface layer is larger than the laying area of the inner side of the TPU surface layer.
[0011] A further improvement is that the laying range of the fifth hot melt line located on the outer side of the TPU surface layer is not less than the laying range of the fourth hot melt line and not greater than the laying range of the second hot melt line.
[0012] A further improvement is that: the laying range of the fifth hot melt line located on the inner side of the TPU surface layer is not larger than the laying range of the fourth hot melt line.
[0013] A further improvement is that the U-shaped bottoms of the second heat-fusible lines, the third heat-fusible lines and the fourth heat-fusible lines are respectively formed in wavy line tracks.
[0014] By adopting the above technical solution, the beneficial effects of the utility model are:
[0015] In this case, a first TPU reinforcement layer for limiting the deformation of the upper in the front-to-back direction and a second TPU reinforcement layer for limiting the deformation of the upper in the left-to-right direction are arranged on the TPU surface layer. The first TPU reinforcement layer is used to increase the wrapping support strength in the front-to-back direction, and the second TPU reinforcement layer is used to increase the wrapping support strength in the left-to-right direction. The materials of the TPU surface layer, the first TPU reinforcement layer and the second TPU reinforcement layer are all TPU hot-melt wire, which is hot-pressed at one time by a hot press, reducing the transportation steps of the surface layer and the stacking steps between layers, thereby simplifying the production process.
[0016] The second hot-melt line, the third hot-melt line and the fourth hot-melt line on the second TPU reinforcement layer are laid flat with each other without overlap, and the lines are neat and orderly, which is conducive to the smoothness of the shoe upper.
[0017] A further beneficial effect is: in this case, a third TPU reinforcement layer is provided on the basis of the second TPU reinforcement layer, and the fifth hot melt line is pressed on the second hot melt line, the third hot melt line and the fourth hot melt line, thereby strengthening the connection tightness between the second hot melt line, the third hot melt line and the fourth hot melt line in the front-to-back direction, so that the third TPU reinforcement layer limits the deformation of the second TPU reinforcement layer in the front-to-back direction, and increases the wrapping support force of the second TPU reinforcement layer in the front direction.
[0018] A further beneficial effect is that in this case, the length of the third hot melt line is less than that of the second hot melt line, and the length of the fourth hot melt line is less than that of the third hot melt line, so that the wrapping support strength of the second TPU reinforcement layer decreases in a step-by-step manner from the sole to the middle of the upper, while preventing rollover without affecting the deformation comfort of the middle of the upper.
[0019] A further beneficial effect is that when a foot is sprained, the foot turns outward, therefore, in this case, the laying area of the third TPU reinforcement layer on the inner side of the upper is smaller than the laying area on the outer side of the upper, so as to reduce the use of hot melt line on the inner side.
[0020] A further beneficial effect is that the U-shaped bottoms of the second hot melt line, the third hot melt line and the fourth hot melt line respectively present wavy line trajectories. Compared with the straight line trajectories, the curved trajectories give people a flexible and non-rigid feeling, thereby increasing the overall agility of the shoe upper. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of a flattened structure of a breathable shoe upper with good wrapping strength according to an embodiment of the utility model.
[0022] Figure 2 It is a schematic diagram of the flattening structure of a TPU surface layer in a breathable shoe upper with good wrapping strength according to an embodiment of the utility model.
[0023] Figure 3 It is a schematic diagram of the flattened structure of the first TPU reinforcement layer in a breathable shoe upper with good wrapping strength according to an embodiment of the utility model.
[0024] Figure 4 It is a schematic diagram of the flattening structure of the second TPU reinforcement layer in a breathable shoe upper with good wrapping strength in an embodiment of the utility model.
[0025] Figure 5 It is a schematic diagram of the flattened structure of the third TPU reinforcement layer in a breathable shoe upper with good wrapping strength in an embodiment of the utility model.
[0026] Figure 6 It is a schematic diagram of the flattened structure between the second TPU reinforcement layer and the third TPU reinforcement layer in a breathable shoe upper with good wrapping strength in an embodiment of the utility model.
[0027] Figure 7 yes Figure 4 A magnified view of the local structure at point A.
[0028] Figure 8 yes Figure 6 A magnified view of the local structure at point B in the middle. DETAILED DESCRIPTION
[0029] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.
[0030] refer to Figures 1 to 8 The embodiment of the utility model discloses a breathable upper with good wrapping strength, including a TPU surface layer 10, on which a shoe opening 11 and a shoe tongue opening 12 are arranged, and on which a first TPU reinforcing layer 13 for limiting the deformation amount of the upper in the front-to-back direction and a second TPU reinforcing layer 14 for limiting the deformation amount of the upper in the left-to-right direction are arranged;
[0031] The first TPU reinforcement layer 13 includes a plurality of first hot melt lines 131, which are located at both sides of the shoe opening and the shoe tongue opening and are laid in a wave shape in the middle of the TPU surface layer 10 along the front-to-back direction;
[0032] The second TPU reinforcement layer 14 includes a plurality of second hot-melt lines 141, a plurality of third hot-melt lines 142, and a plurality of fourth hot-melt lines 143. The second hot-melt lines 141, the third hot-melt lines 142, and the fourth hot-melt lines 143 are all in a U shape with the bottom facing the middle of the TPU surface layer 10 and the two free ends facing the edges of the TPU surface layer 10 and aligned with the edges. The second hot-melt lines 141, the third hot-melt lines 142, and the fourth hot-melt lines 143 are all arranged on the inner side surface (the inner side surface is the inner side surface of the shoe body after the TPU surface layer 10 is combined with the sole) and the outer side surface (the outer side surface is the outer side surface of the shoe body after the TPU surface layer 10 is combined with the sole) of the TPU surface layer 10 along the inner and outer edges of the TPU surface layer 10; the third hot-melt line 142 is arranged between adjacent second hot-melt lines 141; and the fourth hot-melt line 143 is arranged inside the third hot-melt line 142.
[0033] The length of the third hot melt line 142 is shorter than that of the second hot melt line 141, and the length of the fourth hot melt line 143 is shorter than that of the third hot melt line 142. The U-shaped bottoms of the second hot melt line 141, the third hot melt line 142, and the fourth hot melt line 143 are wavy lines.
[0034] The TPU surface layer 10 is also provided with a third TPU reinforcing layer 15, and the laying area of the third TPU reinforcing layer 15 on the outer side of the TPU surface layer 10 is larger than the laying area of the inner side of the TPU surface layer 10. The third TPU reinforcing layer 15 includes a plurality of fifth hot melt lines 151, and the fifth hot melt lines 151 are arranged on the second hot melt line 141, the third hot melt line 142, and the fourth hot melt line 143 in a wavy shape along the front-to-back direction.
[0035] The laying range of the fifth hot melt line 151 located on the outer side of the TPU surface layer 10 is not less than the laying range of the fourth hot melt line 143, and not greater than the laying range of the second hot melt line 141; the laying range of the fifth hot melt line 151 located on the inner side of the TPU surface layer 10 is not greater than the laying range of the fourth hot melt line 143.
[0036] The basic principles, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.
Claims
1. A breathable shoe upper with good wrapping strength, comprising a TPU surface layer, wherein the TPU surface layer is provided with a shoe opening and a shoe tongue opening, characterized in that: The TPU surface layer is provided with a first TPU reinforcement layer for limiting the deformation amount of the vamp in the front-to-back direction and a second TPU reinforcement layer for limiting the deformation amount of the vamp in the left-to-right direction; the first TPU reinforcement layer includes a plurality of first hot-melt lines, which are located on both sides of the shoe opening and the tongue opening and are laid in a wavy manner in the front-to-back direction in the middle of the TPU surface layer; the second TPU reinforcement layer includes a plurality of second hot-melt lines, a plurality of third hot-melt lines, and a plurality of fourth hot-melt lines, and the second hot-melt lines, the third hot-melt lines, and the fourth hot-melt lines are all in a U shape with the bottom facing the middle of the TPU surface layer and the two free ends facing the edge of the TPU surface layer and aligned with the edge, and the second hot-melt lines, the third hot-melt lines, and the fourth hot-melt lines are all arranged on the inner and outer sides of the TPU surface layer along the inner and outer edges of the TPU surface layer; the third hot-melt lines are arranged between adjacent second hot-melt lines; and the fourth hot-melt lines are arranged inside the third hot-melt lines.
2. A breathable shoe upper with good wrapping strength according to claim 1, characterized in that: A third TPU reinforcement layer is also arranged on the TPU surface layer. The third TPU reinforcement layer includes a plurality of fifth hot-melt lines. The fifth hot-melt lines are arranged in a wave shape along the front-to-back direction on the second hot-melt lines, the third hot-melt lines and the fourth hot-melt lines.
3. A breathable shoe upper with good wrapping strength according to claim 2, characterized in that: The length of the third thermal fuse line is shorter than that of the second thermal fuse line, and the length of the fourth thermal fuse line is shorter than that of the third thermal fuse line.
4. A breathable shoe upper with good wrapping strength according to claim 3, characterized in that: The laying area of the third TPU reinforcing layer on the outer side of the TPU surface layer is larger than the laying area of the inner side of the TPU surface layer.
5. A breathable shoe upper with good wrapping strength according to claim 4, characterized in that: The laying range of the fifth hot melt line located on the outer side surface of the TPU surface layer is not less than the laying range of the fourth hot melt line and is not greater than the laying range of the second hot melt line.
6. The breathable shoe upper with good wrapping strength according to claim 4, characterized in that: The laying range of the fifth hot melt line located on the inner side of the TPU surface layer is not larger than the laying range of the fourth hot melt line.
7. The breathable shoe upper with good wrapping strength according to claim 3, characterized in that: The U-shaped bottoms of the second thermal melt lines, the third thermal melt lines, and the fourth thermal melt lines are formed into wavy lines.