JPS6222165Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Technical field) The present invention relates to shoes, particularly athletic shoes.

(Background Art) In order to satisfy the requirements for cushioning properties, the outsole of shoes such as athletic shoes has a part between the outsole and the midsole on the heel side of the non-stepping part of the shoe, where the same characteristics are mainly required. Some have a wedge sole interposed between them.

(Technical issue) However, when it comes to shoes with such soles, emphasis is placed on cushioning properties, and other characteristics in the above-mentioned area (the heel side from the non-stepping area), such as impact resistance and over-sole resistance, are In some cases, pronation performance (overadduction resistance) deteriorates, resulting in the wearer injuring his or her heel.

(Purpose of the invention) The purpose of the invention is thus to solve the technical problem.

(Summary of the invention) The present invention consists of a part of the wedge sole made of a hard material that is harder than the material forming the other part of the wedge sole, thereby maintaining cushioning properties and improving impact resistance. and overpronation resistance.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

(One Example) Figures 1 to 4 show one example (Figures 1 and 2 also cover other examples described later), and in each figure, Reference numeral 1 indicates the sole of the shoe, and reference numeral 2 indicates the shoe cover, and the shoe A is roughly constituted by both 1 and 2. The sole 1 consists of an outsole 3 that is visible from the outside, and an insole (not shown) located above the outsole 3.

The outsole 3 has a wedge sole 6 interposed between an outsole 4 and a midsole 5 closer to the heel b than the non-stepping part a of the shoe A. The wedge sole 6 gradually becomes thicker toward the rear side (heel b side) of the shoe A, thereby providing cushioning properties mainly at the heel b.

The wedge sole 6 has a plurality of grooves 6a (see FIGS. 2 and 3) on its upper surface that extend in the lateral direction of the shoe A at intervals in the front-rear direction of the shoe A.
) are formed, and the grooves 6a are open on both sides of the wedge sole 6. A hard body 7 having the same shape as each groove 6a is located within these grooves 6a.
substantially constitutes a part of the wedge sole 6. The material forming this hard body 7 is
The material is harder than the material forming the wedge sole (hereinafter referred to as the wedge sole body) 6' except for the wedge sole body.

In the shoes A having such a wedge sole 6, the cushioning properties are improved by the wedge sole body 6' on the side of the heel part b from the non-stepping part a, and the impact resistance and overpronation resistance. This can be achieved by using the hard body 7.

In this case, if more emphasis is placed on overpronation resistance, the hardness of the hard body 7 may be slightly different in the lateral direction. That is, it is preferable that the lateral inner side of shoe A (the side closer to the other shoe when worn) is relatively harder than the outer side. This is because the overpronation phenomenon occurs because the inner side of the shoe A is soft in the lateral direction.

(Other Embodiments) FIGS. 5 and 6 show other embodiments, and the same components as in the previous embodiments are given the same reference numerals and their explanations will be omitted. The hard body 7 in this example is a hard part (corresponding to the hard body 7 in the above example) 7a disposed in each of the plurality of grooves 6a...
... and connecting portions 7b that connect adjacent hard portions 7a. In this case, the connecting portions 7b are preferably made thin.

Therefore, when positioning the hard parts 7a in the grooves 6a, it is only necessary to position and arrange the hard body 7 as an integrated object with respect to the wedge sole body 6', which is excellent in terms of workability. In addition, since the hard body 7 as an integrated object is adhesively integrated with the wedge sole body 6' and with the midsole (Figs. 1 and 2) 5 laminated above the hard body 7, , the adhesive area increases and the adhesive strength improves.

Note that when positioning the hard body 7 within the grooves 6a, integration is not necessarily required. In other words, the elasticity of the wedge sole body 6' may be used to simply hold the hard body 7 within the grooves 6a.

(Specific Embodiment) As the material forming the hard body 7, synthetic resin rubber (synthetic rubber or natural rubber) such as vinyl chloride resin or urethane resin, or a mixed material thereof is used.

Said wedge sole body 6', mid sole 5
Or, as a material forming the outsole 4,
Well-known ones are used. For example, the wedge sole body 6' (and the midsole 5) is made of EVA or rubber sponge, and the outsole 4 is made of rubber or rubber sponge.

A specific example of the hardness of the materials constituting the outsole 3 is as follows.

Wet sole body: 55° Hard body (inner side): 65° Hard body (outer side): 55° Midsole: 55° Outsole: 65° The above hardness is based on the Shore hardness tester type C.

(Modifications) The present invention is not limited to the above-mentioned embodiments, but includes, for example, the following modifications.

a Each groove 6a only needs to be open on at least one side surface of the wedge sole.

b There is no need for the hard body 7 to exist in all parts of each groove 6a.

c The shape or number of the grooves 6a... (and the hard bodies 7...) are not limited as long as they have impact resistance and overpronation resistance.

(Effects of the invention) As described above, the invention has the effect of solving the above-mentioned technical problem, and also has the following additional effects.

1 The hard body made of hard material constitutes a part of the wedge sole, and when worn, there is a midsole and an insole (and in some cases) between the sole and the hard body. Since there is an insole at the end of the shoe, it is difficult to wear the shoe when the load is more average than the ground contact surface (when overpronation resistance is not required), such as when walking on a flat road. For some people, the existence of hard bodies does not bother them.

2. Since the groove is formed on the upper surface side of the wedge sole (the main body of the wedge sole), when positioning a hard body in the groove, there is a large degree of freedom in selecting the means for positioning it. For example, if the wedge sole is also formed with a through hole (which performs the same function as a groove) extending laterally, and a hard body is placed in the through hole, the above means is limited to the "insertion" means. become.

3. If the visible part of the hard body has a different appearance (for example, color) from the wedge sole body, it can contribute to improving the aesthetic appearance of the shoe.

[Brief explanation of the drawing]

FIG. 1 is an overall side view showing an embodiment of the present invention (including one embodiment and other embodiments), FIG. 2 is a cross-sectional side view showing the outsole in the above example, and FIG.
The figures and FIG. 4 relate to one embodiment, and the third
The figure is a perspective view showing the wedge sole in this example,
FIG. 4 is a perspective view showing the hard body in this example, and FIGS. 5 and 6 are related to other embodiments. FIG. 5 is similar to FIG. 3, and FIG. 6 is similar to FIG. 4. , respectively, represent the corresponding diagrams. 3...Outsole, 6...Wet sole, A...
Shoes, 6'...Wedge sole body, 7(...)...
Hard body (appendage), 6a (...)...groove.

Claims (1)

[Claims for Utility Model Registration] Shoes having a wedge sole, the wedge sole comprising a wedge sole body and an appendage, and a groove opening on the side surface of the wedge sole body is formed on the upper surface side of the wedge sole body. and the appendage is positioned within the groove.