TWM587449U - Transparent midsole - Google Patents

Abstract

A light-transmissive midsole has a foamed top leather layer, a foamed bottom leather layer, and a foamed side leather layer. The foamed side leather layer connects the foamed top leather layer and the foamed bottom leather layer and surrounds the foamed inner layer to foam. The inner layer includes air cells, and the surfaces of the foamed top leather layer, the foamed bottom leather layer, and the foamed side leather layer are micro-convex surfaces, and the micro-convex surface is a corresponding part of a plurality of air cells, and the light penetrates this light-transmissive shoe At the bottom, it can penetrate the foamed inner layer and bubble cells, no reflection phenomenon occurs, and the three-dimensional grainy surface of the micro-convex particles surface.

Description

Light-permeable midsole

This creation is about a midsole, especially a lightweight, flexible midsole that allows light to penetrate.

The composition of shoes generally includes soles, uppers, insoles and other parts. Among them, the soles are used as a stable support between the wearer and the ground, and the equivalent of buffering and rebounding reaction forces from the ground. There are roughly two types of common configuration types at the bottom of the shoe. One is an integral type, and the other is a composite type composed of a midsole and an outsole. The aforementioned midsole is commonly made of EVA (Ethylene Vinyl Acetate, ethylene-vinyl acetate copolymer) or PU (Polyurethane, polyurethane) foam, and the outsole is made of rubber.

Among the aforementioned composite type soles composed of a midsole and an outsole, the midsole mainly provides performance cushioning and rebound performance, while the outsole provides anti-slip and wear-resistant effects relative to the ground. . At present, the sole of the shoe is usually made of integrated foam, or the sole is equipped with an air cushion and an airbag (such as the Taiwan Patent No. M411800 elastic shock-absorbing sole structure). However, the method of using an air cushion or an airbag is too much. The number of air cushions or airbags will increase the entire weight of the sole, which is not suitable for emphasis on wearing lightweight shoes. Furthermore, when using soles in the form of air cushions or airbags, attention must be paid to the occasion of use, to prevent foreign objects from piercing the air cushions or airbags, and it cannot provide the effect of cushioning rebound.

This creation provides a novel midsole with light weight, good resilience, and a novel product that can penetrate light with great visual effects.

In order to achieve the foregoing object and effect, an embodiment is provided. A light-transmissive midsole has a foamed top leather layer, a foamed bottom leather layer, and a foamed side leather layer. The foamed side leather layer is connected to the foamed top leather layer. And the foamed bottom skin layer, and the foamed side skin layer and the foamed top skin layer and the foamed bottom skin layer surround a foamed inner layer, the foamed inner layer includes a plurality of bubble cells, and the foamed top skin layer and the The surface of the foamed bottom skin layer and the foamed side skin layer is a surface of a plurality of micro-protrusions, and the surface of the plurality of micro-protrusions is a corresponding part of the plurality of cell holes.

Referring to the first to fifth figures, a light-transmissive midsole 1 is disclosed, wherein the light-transmissive midsole 1 has a foamed top leather layer 2, a foamed bottom leather layer 3, and a foamed side leather layer. 4. The foamed side skin layer 4 connects the foamed top skin layer 2 and the foamed bottom skin layer 3, and the foamed side skin layer 4 and the foamed top skin layer 2 and the foamed bottom skin layer 3 surround a foamed inner layer. 5. The foamed inner layer 5 includes a plurality of bubble cells 51, and the surfaces of the foamed top skin layer 2 and the foamed bottom skin layer 3 and the foamed side skin layer 4 are a plurality of micro-convex surfaces, and the plurality of micro-convex surfaces Each of them is arranged irregularly, and the plurality of micro-convex particles correspond to a part of the plurality of bubble cells 51.

Regarding the manufacturing method of the light-transmissive midsole 1 of this creation, the composite particles are mainly filled in the foam cavity of the foam shoe mold, and the foam shoe mold is set to a foaming temperature of 160 ° C to 180 ° C. A semi-finished foamed shoe material having a plurality of air cells was obtained. Then the semi-finished product of the foam shoe material is placed in the shaping cavity of the shaping mold, and the shaping mold is heated, so that the semi-finished product of the foamed shoe material expands to the same shape and size as the shaping mold cavity, and the average pore diameter of the inner bubble cells is enlarged The average pore diameter of the bubble cells in the foaming mentioned above was taken out from the shaping mold to obtain a shaped light-transmissive shoe midsole 1 so that light penetrated the foamed inner layer 5 of the light-transmissive shoe midsole 1 and the foamed inner layer. 5 内 voids51. Please refer to the figure 4 for the micro-convex particles 21 in the foamed top skin layer 2 as an example, and the micro-convex particles 21 are caused by the bubble holes 51 during the aforementioned expansion process.

Since no filler is used in the production of the composite particles (the aforementioned fillers generally refer to calcium carbonate, talc or inorganic powder), there will be no fillers to increase the specific gravity of the particles, so that bubbles are formed during the foaming process. The gas inside expands when exposed to heat, and no filler will remain in the air cells, which can provide the light-permeable shoe midsole 1 for better resilience, so light can pass through the light-permeable shoe midsole 1 The foamed inner layer 5 and the cell 51 are penetrated without reflection.

After the light-transmissive midsole 1 is manufactured as described above, the surfaces of the foamed top leather layer 2, the foamed bottom leather layer 3 and the foamed side leather layer 4 of the light-transmissive midsole 1 form micro-convex surfaces, Visually, bubble particles protrude from the surface, and when light penetrates the light-transmissive shoe midsole 1, its surface presents a unique three-dimensional grainy feeling like a dense and delicate foam.

The technical characteristics of the light-transmitting shoe midsole 1 are further explained, wherein the diameter of the plurality of bubble cells 51 of the light-transmitting shoe midsole 1 is on average 100 to 500 microns.

The light-transmissive midsole 1 is made of a plurality of composite particles through expansion and expansion, wherein the plurality of composite particles include EVA particles (Ethylene Vinyl Acetate, ethylene vinyl acetate copolymer), elastomers, bridging agents, foaming The compound rubber composed of additives and auxiliaries is obtained through the extrusion granulation mechanism; the aforementioned elastomers include POE elastomers (Polyolefin Elastomer, ethylene octene elastomer) and SEBS elastomers (polybutadiene hydrogenated ethylene) -A butene copolymer is a triblock copolymer with an intermediate elastic block).

The bridging agent is peroxide; the foaming agent is sodium bicarbonate (NaHCO3), tosylhydrazine (TSH) or N, N'-dimethyl-N, N'-dinitroso Any one or a combination of two or more of the aforementioned xylylenediamines, and the aforementioned auxiliary agents are used for auxiliary bridging agents and auxiliary foaming agents.

The surface of the plurality of micro-convex particles of the foamed side skin layer 4 is finer than the surface of the plurality of micro-convex particles of the foamed top skin layer 2. The surface of the plurality of micro-convex particles of the foamed top skin layer 2 is more fine than the foamed bottom surface. The surface of the plurality of micro-convex grains of the skin layer 3 is fine.

1‧‧‧ translucent shoe midsole

          2‧‧‧Foam top cortex

          21‧‧‧Micro convex

          3‧‧‧Foam base layer

          4‧‧‧Foam side cortex

          5‧‧‧ Foam inner layer

          51‧‧‧ bubble hole

The first series is a three-dimensional illustration of the midsole of this shoe.

The second diagram is a partially enlarged schematic diagram of the area of the first diagram A.

The third figure is a schematic cross-sectional view of the line IIIIII of the first figure.

The fourth figure is a schematic cross-sectional view of the second line IVIV.

The fifth figure is a schematic view of light penetrating the midsole of a light-transmissive shoe.

Claims (5)

A translucent shoe midsole has a foamed top leather layer, a foamed bottom leather layer, and a foamed side leather layer. The foamed side leather layer connects the foamed top leather layer and the foamed bottom leather layer, and the foaming The side skin layer, the foamed top skin layer and the foamed bottom skin layer surround a foamed inner layer, the foamed inner layer includes a plurality of air cells, and the foamed top skin layer and the foamed bottom skin layer and the foamed side skin layer The surface is a micro-convex surface and has a plurality of micro-convex particles, and the plurality of micro-convex particles are irregularly arranged with each other, and the plurality of micro-convex particles correspond to the plurality of cell holes. The light-transmitting shoe midsole according to claim 1, wherein the plurality of bubble cells in the light-transmitting shoe midsole have an average diameter of 100 micrometers to 500 micrometers. The translucent shoe midsole according to claim 1, wherein the translucent shoe midsole is made of a plurality of composite particles through expansion and expansion, wherein the plurality of composite particles include EVA particles (Ethylene Vinyl Acetate, ethylene acetate) (Vinyl ester copolymer), elastomer, bridging agent, foaming agent and auxiliaries are compounded and extruded through a granulation mechanism; the aforementioned elastomers include POE elastomers and SEBS elastomers. The translucent shoe midsole according to claim 3, wherein the bridging agent is peroxide; the foaming agent is sodium bicarbonate (NaHCO3), tosylhydrazine (TSH), or N, N ' -Dimethyl-N, N'-dinitroso-p-xylylenediamine, any one of the foregoing, or a combination of two or more of the foregoing, and the aforementioned auxiliary is used for auxiliary bridging agent and auxiliary foaming agent. The translucent shoe midsole according to any one of claim 1 to claim 4, wherein the surface of the plurality of micro-convex particles of the foamed side skin layer is finer than the surface of the plurality of micro-convex particles of the foamed top skin layer The surface of the plurality of micro-convex particles of the foamed top skin layer is finer than the surface of the plurality of micro-convex particles of the foamed bottom skin layer.