KR20110092362A - Sole with shock absorbing structure and method for manufacturing the same - Google Patents

Abstract

PURPOSE: A sole with a shock absorbing structure and a method for manufacturing the same are provided to prevent separation or deformation of a shock absorbing pad. CONSTITUTION: A sole with a shock absorbing structure comprises: a buffer unit formation hole(10a) which is formed in a fixed position of a raw material(10) of the sole; and a shock absorbing pad which is formed in the upper side and lower side of the raw material of the sole in a predetermined range while filling the buffer unit formation hole through foaming of synthetic resin. The buffer unit formation hole includes a single penetration hole, a plurality of penetration holes, and a polygonal penetration hole.

Description

Shoe with shock absorbing structure and manufacturing method {SOLE WITH SHOCK ABSORBING STRUCTURE AND METHOD FOR MANUFACTURING THE SAME}

The present invention relates to a shoe sole having a buffer structure and a method of manufacturing the same, and more specifically, to a buffer part forming hole formed in a sole material of paper or synthetic material, foamed synthetic resin is cushioned by a foam pad structure by foaming the synthetic resin. The present invention relates to a shoe sole having a shock-absorbing structure and a method of manufacturing the same, which are formed in a predetermined range on the upper and lower surfaces of the sole raw material with respect to the shaping hole.

In the case of driving or walking while wearing shoes, a shock is transmitted from the sole of the body at the time of contact with the ground, and various types of soles have been suggested to be improved to alleviate such shock.

Usually, midsoles made of textiles, paper, or synthetic resin are interposed between the soles and insoles of shoes, and for such soles or midsoles or insoles, the foaming of soft synthetic resins (especially urethane resins, etc.) The buffer pad structure formed by the above is applied.

According to an example of the formation structure of such a buffer pad, for example, a buffer pad having a shape corresponding to the buffer portion forming hole is formed by resin foaming in a state where the buffer portion forming hole is formed at a predetermined position (for example, the front ridge) of the sole material of the paper material. In the case of forming and adhering with an adhesive, or resin foaming on one side (that is, the upper side) of the buffer portion forming hole, there is a high possibility that the buffer pad structure is released from the buffer portion forming hole when used for a long time.

The present invention has been made in view of the above-described state of the art, and the resin foaming proceeds from the upper side and the lower side of the buffer part forming hole formed in the sole material of the paper material or the synthetic resin material, so that the upper and lower sides of the buffer part forming hole are fixed. It is an object of the present invention to provide a shoe sole and a method for manufacturing the same having a buffer structure to prevent deformation or deviation of the buffer pad structure by forming a buffer pad structure so as to be distributed in a range.

In order to achieve the above object, according to a preferred embodiment of the present invention while filling the buffer portion forming hole and the buffer portion forming hole by forming a soft synthetic resin with respect to the buffer portion forming hole in the predetermined position of the sole material Provided is a shoe sole having a shock absorbing structure including a buffer pad formed on the upper side and the lower side of the sole raw material over a predetermined range.

According to this embodiment, the shape of the buffer portion forming hole includes a single through hole, a plurality of through holes, polygonal through holes.

In addition, according to another embodiment of the present invention for achieving the above object, the step of forming the buffer portion forming hole in the predetermined position of the sole material, and the buffer portion forming hole by the foaming of the soft synthetic resin with respect to the buffer portion forming hole Provided is a method of manufacturing a shoe sole with a buffer structure comprising the step of forming a buffer pad over a predetermined range on the upper and lower surfaces of the sole material while filling the.

According to this embodiment, the shape of the buffer portion forming hole includes a single through hole, a plurality of through holes, polygonal through holes.

According to the shoe sole having a buffer structure according to the present invention and a method for manufacturing the same, when resin foaming is performed on the buffer part forming hole formed in the sole material of the paper or synthetic resin material, the upper and lower outer peripheral edges of the buffer part forming hole are formed. As the buffer pad structure is formed over a certain range of, the process of adhering the buffer pad is excluded, and the buffer pad structure is foamed to a certain range on the upper and lower sides of the buffer part forming hole to minimize detachment or deformation. Can be.

1 is a schematic perspective view showing a shoe sole having a buffer structure according to a preferred embodiment of the present invention;
2 is a view for explaining the cross-sectional structure of the sole having a buffer structure according to a preferred embodiment of the present invention shown in FIG.
Figure 3 is a view showing in detail the structure of the buffer pad formed in the buffer portion forming hole of the sole material shown in Figures 1 and 2,
4 and 5 are views showing another example of the buffer portion forming hole formed in the shoe sole having a buffer structure according to the present invention.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

1 is a schematic perspective view showing a shoe sole with a buffer structure according to a preferred embodiment of the present invention.

Referring to the drawings, any one of the paper material or synthetic resin material (or rubber material) or a predetermined portion of the sole raw material 10 formed by the synthetic material (in the front portion in the figure) buffer forming hole (Fig. 2a, see 10a in FIG. 5).

Synthetic resin (for example, polyurethane resin) is foamed with respect to the buffer forming hole 10a formed in the sole raw material 10 so as to cushion the pads 12a and 12b over a predetermined area of the upper side and the lower side of the sole raw material 10. ) Is formed to fill the buffer portion forming hole 10a.

Here, according to the formation process of the buffer pad (12a, 12b; Fig. 3 to 12), the buffer portion forming hole (10a) is formed in a predetermined shape between the upper and lower molds in which the sole material 10 is accommodated The sole material 10 is to be placed.

In this case, a range in which the expandable synthetic resin (for example, polyurethane resin) is foamed with respect to the buffer portion forming hole 10a of the sole raw material 10 on the inner surfaces of the upper and lower molds has a predetermined shape (for example, circular, elliptical, or polygonal). Etc., it becomes preferable.

On the other hand, the inner surface of the upper mold allows the shape defining the buffer pad structure to be defined, while for the lower mold, the lower region 12b of the buffer pad 12 is formed by the foaming pressure of the foamed synthetic resin. ) May be integrally formed to fill the buffer portion forming hole 10a.

Then, injecting and foaming a foamed synthetic resin between the upper and lower molds in the state of interposing the sole raw material 10 having the buffer portion forming hole 10a formed between the upper mold and the lower mold, the upper mold and In the shape defined by the lower mold, the buffer pad 12 is formed to fill the buffer portion forming hole (10a) of the sole material 10 to be spread over a predetermined range at its outer circumference (see Fig. 3).

Accordingly, the buffer pad 12 formed on the sole raw material 10 formed by the above process has an upper side and a lower side of the sole raw material 10 in a range where the upper region 12a and the lower region 12b are constant. Since it is formed in a form that is firmly foamed and bound over, the disadvantage that the buffer pad 12 falls off when the upper and lower molds are opened after resin foaming and then the shoe sole raw material 10 is separated. do.

In addition, even when the sole is applied at the time of manufacture of the shoe, the buffer pad 12 may be suppressed from being deformed or separated from the buffer forming hole 10a of the sole raw material 10 to be deformed as much as possible. have.

In addition, according to the present invention, the buffer portion forming hole 10a of the sole material 10 is formed in a structure in which a plurality of protrusions are formed inward as shown in FIG. 4 or as shown in FIG. In the case where the through-hole is formed, when the resin foaming is performed on the buffer part forming hole 10a, departure or deformation of the buffer pad 12 may be more effectively prevented.

Meanwhile, the present invention is not limited to the above-described embodiments, and various changes and modifications can be made without departing from the technical gist and gist of the invention.

10: sole material, 10a: buffer forming hole,
12: buffer pad.

Claims (4)

A buffer part forming hole formed at a predetermined position of the sole material,
With a buffer structure characterized in that it comprises a buffer pad formed over a predetermined range on the upper side and the lower side of the sole raw material while filling the buffer portion forming hole by the foaming of the soft synthetic resin with respect to the buffer portion forming hole Sole. The shoe sole of claim 1, wherein a shape of the buffer forming hole includes a single through hole, a plurality of through holes, and a polygonal through hole. Forming a buffer part forming hole at a predetermined position of the sole material;
A buffer structure comprising the step of forming a buffer pad over a predetermined range on the upper side and the lower side of the sole raw material while filling the buffer portion forming hole by foaming the soft synthetic resin with respect to the buffer portion forming hole How to make a shoe sole. The shoe sole of claim 1, wherein a shape of the buffer forming hole includes a single through hole, a plurality of through holes, and a polygonal through hole.

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