EVA in-mold bubble one-step molding outsoleTechnical Field
The utility model relates to a big end of bubble one shot forming in EVA mould.
Background
The sole is an important part of the shoe, directly linked to the comfort of wear and to the life of the shoe. The existing sole is usually made of engineering plastics through foaming, soles with different performances can be obtained through different foaming degrees, but the sole is limited by materials, and the elasticity and the shock absorption capacity of the sole are often insufficient.
At present, some manufacturers improve the elasticity and the shock absorption capacity by arranging a large recess on a sole to form an arch structure, but the service life of the sole is often shortened by the arch structure, and the shoe is deformed after long-term use.
Disclosure of Invention
An object of the utility model is to provide an EVA mould internal bubble one shot forming outsole, this outsole can effectively improve sole elasticity and do not harm the sole life-span.
The technical scheme of the utility model lies in: the EVA in-mold bubble one-step molding outsole is divided into a front foot part corresponding to a tiptoe, a middle foot part corresponding to a foot arch and a rear foot part corresponding to a heel, wherein the front foot part, the middle foot part and the rear foot part are respectively internally provided with large bubbles.
Furthermore, a first big bubble is arranged at the toe of the front foot part, and the shape of the first big bubble is a long strip shape extending from the big toe to the small toe along the radian of the toe.
Further, the middle foot part is provided with a second large bubble located at the first metatarsophalangeal joint and a third large bubble located at the upper half section of the outer longitudinal arch, the second large bubble is oval in shape, and the third large bubble is long-strip-shaped.
Furthermore, the rear foot part is provided with a fourth large bubble located below the inner longitudinal arch and a fifth large bubble located at the calcaneus, the fourth large bubble is oval, and the fifth large bubble is long-strip-shaped and extends from the heel along the direction of the outer longitudinal arch along the radian of the outsole.
Further, the large air bubbles are filled with air which is not communicated with the atmosphere.
Furthermore, the top surface of the outsole is provided with a recess matched with the foot.
Furthermore, the outsole bottom surface is provided with a plurality of anti-skidding bosses, the anti-skidding boss position corresponds with big bubble position, the anti-skidding boss is provided with little recess.
Furthermore, the bottom surface of the outsole is provided with anti-skid grains.
Compared with the prior art, the utility model has the advantages of it is following: the outsole is provided with five large air bubbles which are matched with the bearing positions of feet of a person to form an air cushion structure, so that the reaction force during walking and walking is greatly reduced, and the pressure of the weight on the feet when the outsole stands is relieved. And the large bubbles are arranged in the outsole at one time during molding, so that the trouble of subsequent processing is reduced, the outsole structure is not damaged, and the service life is not damaged. Furthermore, the foot-shaped depressions are arranged on the top surface of the outsole, so that the wrapping feeling and the comfort level are fully improved.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view of the front leg of the present invention;
FIG. 3 is a cross-sectional view of the middle leg of the present invention;
FIG. 4 is a cross-sectional view of the rear foot of the present invention;
fig. 5 is a side view of the present invention;
fig. 6 is a bottom view of the present invention;
FIG. 7 is a simulation of the use of the present invention;
in the figure: 100-front foot, 200-middle foot, 300-back foot, 1-first big bubble, 2-second big bubble, 3-third big bubble, 4-fourth big bubble, 5-fifth big bubble, 6-anti-skid boss, 7-small groove, 8-model foot, and 9-anti-skid grain.
Detailed Description
In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.
Refer to FIGS. 1-7
The utility model provides a big end of EVA intramode bubble one shot forming, the big end divide into with the corresponding precedingfoot 100 of tiptoe, with the correspondingwell foot 200 of arch of foot and with thecorresponding back foot 300 of heel, be provided with the big bubble in preceding foot, well foot and the back foot respectively, big bubble position suits with people's foot bearing position.
In the embodiment, in order to reduce the reaction force when the toe takes a step, the first big bubble 1 is arranged at the toe of the front foot part, and the shape of the first big bubble is a long strip shape extending from the big toe to the small toe along the radian of the toe.
In the embodiment, in order to reduce the pressure of the body weight on the foot when the foot stands, the middle foot part is provided with a secondbig bubble 2 positioned at the first metatarsophalangeal joint and a third big bubble 3 positioned at the upper half section of the outer longitudinal arch, the shape of the second big bubble is an ellipse, and the shape of the third big bubble is a long strip.
In this embodiment, in order to reduce the pressure when the heel falls to the ground during stepping, the rear foot portion is provided with a fourth large bubble 4 located below the inner longitudinal arch and a fifthlarge bubble 5 located at the calcaneus, the fourth large bubble is elliptical, and the fifth large bubble is elongated and extends from the heel along the large-sole radian to the outer longitudinal arch direction.
In this embodiment, in order to prevent the air bubbles from being compressed and deflated for a long time, the large air bubbles are filled with air which is not communicated with the atmosphere.
In this embodiment, in order to improve the comfort, the outsole top surface is provided with a recess designed according to human engineering, and the recess is matched with a human foot.
In the embodiment, in order to prevent slipping and reserve enough bubble wall thickness, the bottom surface of the outsole is provided with a plurality ofanti-slip bosses 6, the positions of the anti-slip bosses correspond to the positions of the large bubbles, and the anti-slip bosses are provided withsmall grooves 7.
In this embodiment, in order to enhance the friction force with the ground, the bottom surface of the outsole is provided withanti-slip lines 9.
The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.