Hidden heightening structure of flat-bottom sandal

Abstract

A hidden heightening structure of a flat-bottom sandal comprises a sole and a vamp strap, the sole comprises a wearing surface and a ground contact surface, the vamp strap is arranged on the wearing surface, a heel supporting part is arranged at the heel position of the wearing surface, and the outline size of the heel supporting part in the horizontal direction is smaller than that of the wearing surface and that of the heel. An arc-shaped transition face is arranged between the heel supporting part and the outer contour of the wearing face, and the arc-shaped transition face is arranged to be in a skin color. When the heel supporting part is heightened, heel meat exceeding the outline of the heel supporting part falls down along the arc-shaped transition face, so that part of the outline is covered, when pedestrians observe nearby the heel supporting part by matching with the skin color arranged on the arc-shaped transition face, the sight of the pedestrians neglects the heel supporting part naturally, the arc-shaped transition face mistakenly considering the skin color and the heel are integrated, and therefore the heightened heel supporting part structure is hidden. The sole is still of a flat bottom structure, the thickness of the side face of the sole is small, a spectator only wears a flat-bottom sandal, and under the cooperation of the hidden heightening structure, the requirements of consumers for the matching aesthetic feeling of the flat-bottom sandal and the clothes and preventing the heightening structure from being exposed are met.

Description

Technical Field

[0001] This invention relates to the field of footwear technology, specifically to a hidden height-increasing structure for flat sandals. Background Technology

[0002] Sandals are a type of open-toed footwear, where the sole is secured to the foot with straps, cleats, or by the arch and ankle. Many women enjoy wearing sandals in the hot summer months because they are breathable and stylish. This type of footwear encompasses a variety of styles: flat, wedge, high-heeled, peep-toe, strappy, flip-flop, and over-the-toe.

[0003] The problem with existing technology is that while flat sandals are the simplest and can meet the aesthetic needs of some consumers, their thin soles cannot meet the needs of those seeking height increase. High-heeled sandals, on the other hand, can meet the need for height increase, but the significant bending of the sole and the addition of a high heel make the height-increasing structure quite noticeable.

[0004] Therefore, if a hidden height-increasing structure could be added to flat sandals, it would satisfy consumers' needs for aesthetic matching with clothing and avoid the height-increasing structure being exposed.

[0005] Furthermore, because flat sandals expose the toe area and are often worn in water-related scenarios such as playing in the sea or streams where underwater conditions are unclear, wearers frequently kick obstacles with their toes and get injured. Therefore, there is a need to design accessories that enhance toe protection for flat sandals, allowing users to customize them according to their specific needs and to protect their toes. Summary of the Invention

[0006] In order to overcome the shortcomings of the above-mentioned technology, the present invention provides a hidden height-increasing structure for flat sandals.

[0007] The technical solution of the present invention: A hidden height-increasing structure for flat sandals, including a sole and an upper strap. The sole includes a wearing surface and a ground contact surface. The upper strap is disposed on the wearing surface. The wearing surface has a heel support portion at the heel position. The horizontal contour dimension of the heel support portion is smaller than the contour dimension of the wearing surface and the contour dimension of the heel. An arc-shaped transition surface is disposed between the heel support portion and the outer contour of the wearing surface. The arc-shaped transition surface is set to skin color.

[0008] Further features of this invention: The sole includes a toe, the outer side of which is provided with a snap-fit ​​groove; the sandal also includes an upper, which is detachably covered over the upper strap; the upper includes a connecting portion that covers the toe and extends to the snap-fit ​​groove, and a protective portion that covers the instep; the connecting portion is provided with a snap-fit ​​protrusion that matches the snap-fit ​​groove.

[0009] Further features of this invention: The shoe upper includes a forefoot fixing strap and an ankle fixing strap. The shoe upper is made of EVA material. The shoe upper has several button holes corresponding to the forefoot fixing strap positions, and grooves connecting these button holes. The forefoot fixing strap has buttons that fit the button holes. The shoe upper also has several ventilation holes.

[0010] A further feature of this invention is that the wearing surface includes an arch portion, which has a transition surface at the heel support portion. The upper strap includes a forefoot fixing strap and an ankle fixing strap. The ankle fixing strap includes a front buckle end, a rear buckle end, and a connecting end. The connecting end is fixedly connected to the sole and is located on the arch portion, parallel to the transition surface, thus covering the transition surface.

[0011] A further feature of this invention is that the forefoot fixing strap and the ankle fixing strap are provided with several buckles on the outer side of the wearing surface, and the sandal also includes several decorative parts, which are provided with female buckles for detachable fixed connection with the shoe upper straps.

[0012] A further feature of this invention is that the wearing surface is provided with anti-slip texture.

[0013] A further feature of this invention is that the contact surface is provided with a sole heightening portion that is equidistantly reduced along its contour, and a gap is left between the outer side of the sole heightening portion and the outer contour of the contact surface.

[0014] The beneficial effects of this utility model are as follows: as shown in the appendix to the specification. Figure 1 , 2 As shown, the designed heel support causes the overall dimensions to be smaller than the heel profile and the upper surface profile. When the heel rests on this heel support, as... Figure 2 As shown, the heel flesh that extends beyond its outline droops down along the curved transition surface, thus partially obscuring the outline. Combined with the skin tone of the curved transition surface (the rest of the sole is not skin tone, such as black, creating a contrast that draws attention to the black sole), when pedestrians observe from nearby, their gaze will naturally ignore the heel support and mistakenly perceive the skin tone of the curved transition surface and the heel as one, thus concealing the structure of the raised heel support.

[0015] Because the sole is still flat and the sides are thin, onlookers only see the flat sandals. Combined with the hidden height-increasing structure, this satisfies consumers' needs for the aesthetic appeal of flat sandals and avoids exposing the height-increasing structure.

[0016] Further design improvements utilize the elasticity of EVA material in the upper components. The buttonholes can be unfolded via grooves for easy detachable connection and fixation with the buttons on the forefoot strap. The interlocking of protruding and recessed clips allows for seamless assembly of the upper components with the flat sandal, providing protection for the toes when wading in water. Users can also choose upper components with or without ventilation holes to enhance drainage and breathability.

[0017] In a further design, the transition between the heel support and the arch is made into a slope, and the connecting end of the ankle strap is designed to be parallel to the transition surface, thus concealing the transition surface. This further hides the side profile of the heel support and the arch profile.

[0018] Further design features detachable decorative pieces that enhance the aesthetic appeal of the sandal's upper straps with their patterned graphics, allowing consumers to freely combine and match different styles. Anti-slip treads prevent the foot from slipping on the upper. A similarly designed, equidistantly tapered platform in the sole adds height, as shown in the instruction manual. Figure 2 The design utilizes the side of the sole to obstruct the view, allowing for a hidden height increase while maintaining a thin sole design. Attached Figure Description

[0019] Figure 1 The structure of this embodiment of the invention Figure 1 ;

[0020] Figure 2 The structure of this embodiment of the invention Figure 2 ;

[0021] Figure 3 The structure of this embodiment of the invention Figure 3 ;

[0022] Figure 4 The structure of this embodiment of the invention Figure 4 ;

[0023] Figure 5 The structure of this embodiment of the invention Figure 5 .

[0024] Among them, 1-sole, 11-wearing surface, 12-ground contact, 13-heel support, 14-arc transition surface, 15-sole heightening part, 16-arch part, 17-connecting transition surface, 18-snap groove, 21-connecting end, 22-forefoot fixing strap, 23-button, 3-upper part, 31-connecting part, 32-protective part, 33-snap protrusion, 34-button hole, 35-groove.

[0025] To better illustrate this embodiment, some parts in the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the actual size of the product. Furthermore, the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Detailed Implementation

[0026] To make the technical solution and advantages of this application clearer, the technical solution of this application will be described in a clearer and more complete manner below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of this application, and are only used to explain this application, not to limit this application. It should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings. Other related parts can be referred to the general design. In the absence of conflict, the embodiments and technical features in the embodiments of this application can be combined with each other to obtain new embodiments.

[0027] The invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-5 As shown, a hidden height-increasing structure for flat sandals includes a sole 1 and an upper strap. The sole 1 includes a wearing surface 11 and a ground contact surface 12. The upper strap is disposed on the wearing surface 11. The wearing surface 11 has a heel support portion 13 at the heel position. The horizontal contour dimension of the heel support portion 13 is smaller than the contour dimension of the wearing surface 11 and the contour dimension of the heel. An arc-shaped transition surface 14 is disposed between the heel support portion 13 and the outer contour of the wearing surface 11. The arc-shaped transition surface 14 is set to skin color.

[0028] The sole 1 includes a toe, and the outer side of the toe is provided with a snap-fit ​​groove 18. The sandal also includes an upper part 3, which is detachably covered on the upper strap. The upper part 3 includes a connecting part 31 that covers the toe and extends to the snap-fit ​​groove, and a protective part 32 that covers the instep. The connecting part 31 is provided with a snap-fit ​​protrusion 33 that is adapted to the snap-fit ​​groove 18.

[0029] The shoe upper includes a forefoot securing strap 22 and an ankle securing strap. The shoe upper component 3 is made of EVA material. The shoe upper component 3 has several buttonholes 34 corresponding to the forefoot securing strap positions, and grooves 35 connecting each buttonhole. The forefoot securing strap 22 has buttons 23 that fit the buttonholes 34. The shoe upper component also has several ventilation holes.

[0030] The wearing surface 11 includes an arch portion 16, which has a transition surface 17 at the heel support portion 13. The upper strap includes a forefoot fixing strap and an ankle fixing strap. The ankle fixing strap includes a front buckle end, a rear buckle end, and a connecting end 21. The connecting end 21 is fixedly connected to the sole 1 and is located parallel to the transition surface 17 at the arch portion 16, covering the transition surface 17.

[0031] The forefoot fixing strap and ankle fixing strap are provided with several buckles on the outer side of the wearing surface 11. The sandal also includes several decorative parts, which are provided with female buckles for detachable fixed connection with the shoe upper straps.

[0032] The wearing surface 11 is provided with anti-slip texture.

[0033] The contact surface 12 is provided with a sole heightening part 15 that is equidistantly reduced along its contour, and a gap is left between the outer side of the sole heightening part 15 and the outer contour of the contact surface 12.

[0034] As per the instruction manual Figure 1 , 2 As shown, the heel support 13 is designed to have a profile smaller than the heel profile and the wear surface 11 profile. When the heel rests on the heel support 13, as... Figure 2 As shown, the heel flesh that extends beyond its outline will droop down along the curved transition surface 14, thereby covering part of the outline. In conjunction with the skin tone set by the curved transition surface 14, when pedestrians observe from nearby, their eyes will naturally ignore the heel support 13 and mistakenly believe that the skin tone of the curved transition surface 14 and the heel are one piece, thus hiding the structure of the raised heel support 13.

[0035] Because the sole 1 is still a flat structure with a thin side, onlookers only see a flat sandal. Combined with the hidden height-increasing structure, it satisfies consumers' needs for the aesthetics of flat sandal outfits and avoids the height-increasing structure being exposed.

[0036] In a further design, the transition between the heel support 13 and the arch 16 is made into a slope, and the connecting end 21 of the ankle strap is designed to be parallel to the transition surface 17, thus concealing the transition surface 17. This further hides the side profile and arch profile of the heel support 13.

[0037] Further design features detachable decorative pieces that enhance the aesthetic appeal of the sandal's upper straps, allowing for free combination and styling. Anti-slip treads prevent the foot from slipping on the upper. A similarly designed, equidistantly tapered sole heightening section 15, as per the instruction manual, is also included. Figure 2 The design utilizes the feature of the side of the sole 1 to block the view, thus achieving a hidden height increase while maintaining the thin sole 1 design.

[0038] The technical solution of this application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. A concealed height-increasing structure for flat sandals, characterized in that: The shoe includes a sole and an upper strap. The sole includes a wearing surface and a ground contact area. The upper strap is disposed on the wearing surface. The wearing surface has a heel support at the heel position. The horizontal contour dimension of the heel support is smaller than the contour dimension of the wearing surface and the contour dimension of the heel. An arc-shaped transition surface is disposed between the heel support and the outer contour of the wearing surface. The arc-shaped transition surface is set to skin color.

2. The concealed height-increasing structure for flat sandals according to claim 1, characterized in that: The sole includes a toe, the outer side of which is provided with a snap-fit ​​groove. The sandal also includes an upper, which is detachably covered over the upper strap. The upper includes a connecting part that covers the toe and extends to the snap-fit ​​groove, and a protective part that covers the instep. The connecting part is provided with snap-fit ​​protrusions that are adapted to the snap-fit ​​groove.

3. The concealed height-increasing structure for flat sandals according to claim 2, characterized in that: The shoe upper includes a forefoot fixing strap and an ankle fixing strap. The shoe upper is made of EVA material. The shoe upper has several button holes and grooves connecting each button hole at the position corresponding to the forefoot fixing strap. The forefoot fixing strap has buttons that fit the button holes. The shoe upper has several ventilation holes.

4. The concealed height-increasing structure for flat sandals according to claim 1, characterized in that: The upper includes an arch section, which has a transition surface at the heel support. The upper straps include a forefoot fixing strap and an ankle fixing strap. The ankle fixing strap includes a front buckle end, a rear buckle end, and a connecting end. The connecting end is fixedly connected to the sole and is located on the arch section, parallel to the transition surface, and covers the transition surface.

5. The concealed height-increasing structure for flat sandals according to claim 3, characterized in that: The forefoot and ankle straps have several buckles on their outer surfaces opposite the wearing surface. The sandal also includes several decorative pieces, each with a female buckle for detachable connection to the upper straps.

6. The concealed height-increasing structure for flat sandals according to claim 5, characterized in that: The wearing surface is provided with anti-slip texture.

7. A concealed height-increasing structure for flat sandals according to any one of claims 1-6, characterized in that: The contact surface is provided with a sole heightening part that is equidistantly reduced along its contour, and a gap is left between the outer side of the sole heightening part and the outer contour of the contact surface.

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