Paperboard shoe stretcher

Abstract

The utility model discloses a paperboard shoe stretcher which comprises a front side face, a left side face, a right side face, a rear side face and an arch face which are made of paperboards, a plurality of downwards-sunken reinforcing rib grooves are formed in the arch face, the length direction of the reinforcing rib grooves extends in the direction from the left side face to the right side face, and the reinforcing rib grooves are distributed from front to back. The folding shoe stretcher is formed by folding paper boards, reinforcing rib grooves are formed in the folding shoe stretcher, the strength of the shoe stretcher is enhanced, meanwhile, the folding portions are arranged on the front side face so that the left side face and the right side face can be bent downwards, and the shape of the whole shoe stretcher can be kept stable.

Description

Technical Field

[0001] The utility model belongs to an auxiliary tool for maintaining the shape of a shoe upper, and more particularly relates to a cardboard shoe tree. Background Art

[0002] A shoe tree is an item used to support shoes and reduce their deformation, also known as a shoe support.

[0003] Currently, shoe trees are made of plastic or paper pulp. Plastic is difficult to degrade, causing serious pollution and waste. Shoe trees produced from paper pulp require additional drying or airing, and are very susceptible to moisture absorption and deformation. At the same time, the cost of a production line of paper pulp production equipment is high, and paper pulp needs to discharge wastewater. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a shoe stretcher made of folded cardboard with reinforcing rib grooves to enhance the strength of the shoe stretcher. At the same time, the front side has a folding portion so that the left and right sides can bend downward, and the shape of the entire shoe stretcher remains stable.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a cardboard shoe tree, comprising a front side, a left side, a right side, a rear side and an arch surface made of cardboard, wherein the arch surface is provided with a plurality of downwardly concave reinforcing rib grooves, the length direction of the reinforcing rib grooves extending from the left side to the right side, and the plurality of reinforcing rib grooves are distributed from front to back, and the front side is provided with a plurality of folding portions, which bring the left side and the right side closer to each other.

[0006] Furthermore, the folded portion is fixed by glue.

[0007] Furthermore, the rear side surface includes a left extension surface and a right extension surface, which are respectively formed by the left side and the right side extending backward, and the left extension surface and the right extension surface are bent toward the middle, overlapped and fixed together.

[0008] Furthermore, an opening is left between the top of the rear side surface and the arch surface.

[0009] It further includes an arch surface extension surface, which is formed by the rearward extension of the arch surface. The arch surface extension surface is bent toward the middle and overlaps with the left extension surface and the right extension surface and is fixed together.

[0010] Furthermore, the arch extension surface is located at the outermost side of the rear side surface.

[0011] Alternatively, the arch extension surface is located at the innermost side of the rear side surface.

[0012] Furthermore, the paperboard comprises an inner layer of grey board and an outer layer of kraft paper.

[0013] Compared with the existing technology, the beneficial effects of the present invention are: using cardboard as raw material and forming it through molding and pasting, its molding speed is faster than pulp molding, it does not require long-term drying, and it is recyclable. Compared with pulp, it has lower water absorption, and the cost of the entire cardboard production line is lower than that of the pulp production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structural diagram of the first embodiment of the cardboard shoe tree of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of a second embodiment of the cardboard shoe tree of the present invention;

[0016] Figure 3 This is a three-dimensional structural diagram of the third embodiment of the cardboard shoe tree of the present invention;

[0017] Figure 4 This is a three-dimensional structural diagram of the cardboard shoe tree of the present invention;

[0018] Figure 5 This is the layer structure of the paperboard in the utility model.

[0019] Figure numerals: 11, arch surface; 111, reinforcing rib groove; 12, left side; 13, right side; 14, front side; 141, folding portion; 15, rear side; 151, left extension surface; 152, right extension surface; 153, arch surface extension surface; 21, grey board paper; 22, kraft paper; 23, hot melt adhesive. DETAILED DESCRIPTION

[0020] Reference Figures 1 to 5 The embodiment of the cardboard shoe tree of the present invention is further described.

[0021] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Therefore, the terms "first" and "second" may explicitly or implicitly refer to one or more of these features. In the description of this utility model, "several" and "a number" mean two or more, unless otherwise specifically defined.

[0023] Example 1:

[0024] A cardboard shoe tree includes a front side 14, a left side 12, a right side 13, a rear side 15, and an arched surface 11, all made of cardboard. The arched surface 11 is provided with a plurality of downwardly concave reinforcing rib grooves 111. The length direction of the reinforcing rib grooves 111 extends from the left side 12 to the right side 13. The plurality of reinforcing rib grooves 111 are distributed from front to back. The front side 14 is provided with a plurality of folding portions 141, which bring the left side 12 and the right side 13 closer to each other.

[0025] The cardboard in this embodiment can be formed by cutting, molding, and folding. The reinforcing rib groove 111 is directly molded by the mold, which is to mold the cardboard from top to bottom to form a groove on the cardboard. The cardboard is not penetrated or damaged. This reinforcing rib groove 111 can enhance the strength of the entire shoe tree and ensure the stability of the shape of the arch surface 11.

[0026] like Figure 4 As shown, the folded portion 141 of the front side surface 14 forms an arcuate surface, and the left side surface 12 and the right side surface 13 are pulled toward the middle and approach each other. The folded portion 141 is preferably fixed by gluing.

[0027] like Figure 1 As shown, the preferred rear side surface 15 of this embodiment includes a left extension surface 151 and a right extension surface 152. The left extension surface 151 and the right extension surface 152 are respectively extended backward from the left side 12 and the right side 13. The left extension surface 151 and the right extension surface 152 are bent toward the middle, overlapped with each other and fixed together.

[0028] In this embodiment, the left side 12 and the right side 13 overlap with each other and are fixed by glue, so that the front, back, left and right sides of the entire shoe tree are enclosed together, and the bottom is hollow. The arrangement of the rear side 15 can make the arch surface 11 stronger, and when squeezed from above, the left side 12 and the right side 13 can be prevented from expanding outward, thereby having a good effect on the arch surface 11.

[0029] Preferably, an opening is left between the top of the rear side surface 15 and the arch surface 11 .

[0030] This opening allows a hand to be inserted to take out or place the shoe tree.

[0031] The preferred cardboard in this embodiment includes an inner layer of grey board 21 and an outer layer of kraft paper 22. Hot melt adhesive 23 is usually used to compound the grey board 21 and the kraft paper 22. The grey board 21 has good support and the surface kraft paper 22 has good moisture resistance.

[0032] Example 2:

[0033] like Figure 2 As shown, it also includes an arch extension surface 153, which is formed by the arch extension surface 153 extending backward from the arch surface 11. The arch extension surface 153 is bent toward the middle and overlaps with the left extension surface 151 and the right extension surface 152 and is fixed together.

[0034] In this embodiment, the arch extension surface 153 is located at the outermost side of the rear side surface 15 , and the remaining technical features are the same as those in the first embodiment.

[0035] When the rear side surface 15 is folded, the left extension surface 151 and the right extension surface 152 are first folded toward the middle and pasted, and then the arch extension surface 153 is folded to cover the left extension surface 151 and the right extension surface 152 and pasted and fixed.

[0036] Example 3:

[0037] In this embodiment, the arch extension surface 153 is located at the innermost side of the rear side surface 15 , that is, only the position of the arch extension surface 153 in this embodiment is different from that in the second embodiment, and the other technical features are the same as those in the second embodiment.

[0038] When the rear side surface 15 of this embodiment is folded, the arch extension surface 153 is folded downward, and then the left extension surface 151 and the right extension surface 152 are folded toward the middle and glued together.

[0039] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A cardboard shoe tree comprising a front side, a left side, a right side, a rear side and an arch surface made of cardboard, characterized in that: The arch surface is provided with a plurality of downwardly concave reinforcing rib grooves, the length direction of the reinforcing rib grooves extends from the left side to the right side, and the plurality of reinforcing rib grooves are distributed from front to back. The front side is provided with a plurality of folding portions, which bring the left side and the right side closer to each other.

2. The cardboard shoe tree according to claim 1, characterized in that: The folded portion is fixed by glue.

3. The cardboard shoe tree according to claim 2, characterized in that: The rear side surface includes a left extension surface and a right extension surface, which are respectively formed by the left side surface and the right side surface extending backward, and the left extension surface and the right extension surface are bent toward the middle, overlapped and fixed together.

4. The cardboard shoe tree according to claim 3, characterized in that: An opening is left between the top of the rear side surface and the arch surface.

5. The cardboard shoe tree according to claim 3, characterized in that: It also includes an arch surface extension surface, which is formed by the rearward extension of the arch surface. The arch surface extension surface is bent toward the middle and overlaps with the left extension surface and the right extension surface and is fixed together.

6. The cardboard shoe tree according to claim 5, characterized in that: The arch extension surface is located at the outermost side of the rear side surface.

7. The cardboard shoe tree according to claim 6, characterized in that: The arch extension surface is located at the innermost side of the rear side surface.

8. The cardboard shoe tree according to any one of claims 1 to 7, characterized in that: The paperboard comprises an inner layer of grey board paper and an outer layer of kraft paper.

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