JP3153779U - Sole structure - Google Patents

Abstract

A shoe sole structure in which an outsole and a midsole are firmly bonded and fixed to each other so that peeling at a distal end portion does not occur. The shoe sole includes an outsole (12) formed of a rubber material and a midsole (13) formed of an EVA resin material and bonded and fixed to the upper portion of the outsole (12). A thick portion 15 having a thick shape is formed along a direction approaching the portion 14, and at least one rib 16 is provided on the thick portion 15, and the midsole 13 is formed of the thick portion 15. Corresponding to the thick shape, a thin portion 18 having a thin shape is formed along the direction approaching the tip portion 17, and a groove portion 19 for sandwiching the rib 16 is formed in the thin portion 18. This is a shoe sole structure that is bonded and fixed in a state of being sandwiched between the groove portions 19. [Selection] Figure 2

Description

  The present invention relates to a shoe sole structure, and more particularly, to a shoe sole structure in which an outsole and a midsole are firmly bonded and fixed so that separation of these members does not occur.

  As a conventional shoe sole, the one shown in FIG. 5 is known. The shoe sole 1 includes an outsole 2 formed of a rubber material and a midsole 3 formed of a synthetic resin material and bonded and fixed to an upper portion of the outsole 2.

  Japanese Patent Application Laid-Open No. 2005-473 discloses a shoe sole structure that prevents the toe from lowering due to bending fatigue of the toe (see Patent Document 1), and Utility Model Registration No. 312375 discloses a foot structure. A shoe sole structure that can keep the fit of the shoe sole to the back well is disclosed (see Patent Document 2).

JP-A-2005-473 Utility Model Registration No. 3102375

  In the shoe sole 1 of the conventional example, there is a defect that the adhesive surface between the outsole 2 and the midsole 3 at the tip end portion 4 is easily peeled off. For example, when a child riding a bicycle travels while rubbing the tip portion 4 against the road surface, the outsole 2 and the midsole 3 of the tip portion 4 are easily separated.

  Therefore, the shoe sole 1 in the conventional example has a problem that must be solved by firmly bonding and fixing the outsole 2 and the midsole 3 so that the tip portion 4 is not particularly peeled off. ing.

  The gist of the present invention for solving the problems of the conventional example is a shoe sole comprising an outsole formed of a rubber material and a midsole formed of an EVA resin material and bonded and fixed to the upper part of the outsole. The outsole is formed with a thick portion that is thick in a direction approaching the tip portion, and at least one rib is provided in the thick portion, Corresponding to the thick shape of the thick portion, a thin portion that is thin along the direction approaching the tip portion is formed, and a groove portion that sandwiches the rib is formed in the thin portion, and the rib Is adhered and fixed in a state of being sandwiched between the grooves.

Further, the tip of the shoe sole has a configuration in which an adhesive surface between the outsole and the midsole does not appear;
Is included.

  According to the shoe sole structure according to the present invention, since the ribs are bonded and fixed in the state of being sandwiched between the groove portions, the adhesion state between the outsole and the midsole particularly at the tip portion is strengthened, and the tip portion of the shoe sole is Even if it receives impacts such as rubbing, it has an excellent effect of not peeling.

In addition, because the tip of the shoe sole has a structure that does not reveal the adhesive surface between the outsole and the midsole, even if the tip of the shoe sole receives an impact such as rubbing, the adhesive surface is directly damaged. There is no.
Therefore, even if the tip of the shoe sole receives an impact such as rubbing, the outsole and the midsole do not peel off, coupled with the fact that the ribs are bonded and fixed in a state of being sandwiched between the grooves. Excellent effect.

1 is a perspective view of a shoe sole 11 according to the present invention. 1 is a perspective view showing an outsole 12 and a midsole 13 of a shoe sole 11 according to the present invention separately. 3 is a perspective view showing a lower side of the midsole 13. FIG. 2 is a front view showing a tip 20 of a shoe sole 11. FIG. It is a perspective view of the sole 1 which concerns on a prior art example.

  Next, embodiments of the present invention will be described with reference to the drawings. First, in FIG. 1, reference numeral 11 denotes a shoe sole, and the shoe sole 11 includes an outsole 12 and a midsole 13 that is bonded and fixed to the upper portion of the outsole 12.

  As shown in FIG. 2, the outsole 12 is formed of a rubber material, has a predetermined thickness, and is formed in a foot shape. Further, on the lower portion 12a side of the outsole 12, a predetermined uneven pattern or the like for preventing slipping is provided.

  On the distal end portion 14 side of the upper portion 12b of the outsole 12, a thick portion 15 that gradually becomes thicker along the direction approaching the distal end portion 14 is formed. A rib 16 having a predetermined height is integrally formed at a substantially central position of the thick portion 15.

  As shown in FIG. 2, the midsole 13 is formed of an EVA resin material, has a predetermined thickness, and is formed in a foot shape that is the same shape as the outsole 12.

As shown in FIG. 3, a thin portion 18 that gradually becomes thinner along the direction approaching the tip portion 17 is formed on the tip portion 17 side of the lower portion 13 a of the midsole 13. The shape of the thin portion 18 and the shape of the thick portion 15 of the outsole 12 are shapes corresponding to each other, and both can be joined together.
Further, a groove portion 19 for holding the rib 16 is formed at a substantially central position of the thin portion 18.

  A plurality of long grooves 21 are formed in the upper portion 13b of the midsole 13 so as to penetrate to the lower portion 13a side, and the long grooves 21 play a role of smoothing the bending deformation of the midsole 13.

  The outsole 12 and the midsole 13 are bonded and fixed to the upper portion of the outsole 12 (see FIG. 2), and the ribs 16 are sandwiched between the grooves 19 (see FIG. 2). 1), in particular, the bonding state between the outsole 12 and the midsole 13 is strengthened at the tip 20 of the shoe sole 11, and even if the tip 20 of the shoe 11 is subjected to an impact such as rubbing, it does not peel off. .

  The number of ribs 16 formed in the thick portion 15 is one in the embodiment, but is not necessarily limited to one and may be a plurality. In this case, what is necessary is just to form the groove part 19 of the number corresponding to the number in the thin part 18. FIG.

  The adhesive that adheres to the outsole 12 and the midsole 13 may be appropriately selected from various types such as an elastomer adhesive, an emulsion adhesive, and a hot melt adhesive.

  As shown in the front view of FIG. 4, the shoe sole 11 as described above is in a state in which the distal end portion 14 of the outsole 12 appears entirely at the distal end portion 20, and an adhesive surface 22 with the midsole 13 appears. There is no composition. Therefore, even if the tip portion 20 of the shoe sole 11 is subjected to an impact such as rubbing, the bonding surface 22 is not directly damaged, and there is a combination with the effect of the rib 16 being sandwiched between the groove portions 19 and being bonded and fixed. Thus, peeling between the outsole 12 and the midsole 13 never occurs.

  The sole 11 in the sole structure of the present invention can be used for various types of shoes such as short shoes, sandals, or boots.

DESCRIPTION OF SYMBOLS 1 Shoe sole 2 Outsole 3 Midsole 4 Tip part 11 Shoe sole 12 Outsole 12a lower part 12b Upper part 13 Midsole 13a lower part 13b Upper part 14 Tip part 15 Thick part 16 Rib 17 Tip part 18 Thin part 19 Groove part 20 Tip part 21 Long groove 22 Adhesive surface

Claims (2)

A shoe sole comprising an outsole formed of rubber material and a midsole formed of EVA resin material and bonded and fixed to the upper part of the outsole,
The outsole is formed with a thick portion that becomes a thick shape along a direction approaching the tip portion, and at least one rib is provided on the thick portion,
The midsole is formed with a thin portion that becomes thin along the direction of approaching the tip portion, corresponding to the thick shape of the thick portion, and the thin portion has a groove portion that sandwiches the rib. Formed,
A shoe sole structure, wherein the rib is bonded and fixed in a state where the rib is sandwiched between the grooves. 2. The shoe sole structure according to claim 1, wherein a tip end portion of the shoe sole has a configuration in which an adhesive surface between the outsole and the midsole does not appear.

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