JPH0330006Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a shoe sole suitable for tennis and other sports involving hitting a ball.

(Prior art) In tennis and other sports that involve hitting a ball, the cushioning properties of the sole are important, and the impact on the heel during running is said to be three times the body weight, so it is important to avoid excessive deformation. desirable. Therefore, in conventional shoe soles, for example, a horseshoe-shaped synthetic resin plate is formed as in Utility Model Publication No. 60-38892, and a leg body is provided at the lower part of the inner side and is embedded and integrated in the insole. The bottom is proposed.

(Problems to be solved by the invention) Since the above-mentioned insole has a leg body provided on the inside side of the horseshoe shape and is buried in the insole, the heel part where the leg body is located is excessively deformed. This can be prevented.

However, the part where the leg is located has poor cushioning and feels stiff. On the other hand, parts of the body where the legs do not exist are deformed and distorted, causing discomfort during normal walking.

(Means for solving the problem) This idea softens the impact on the heel at the cushioning part, supports the entire heel almost equally, improves lateral stability, and improves the feeling of wearing. The purpose is to provide a shoe sole that can easily prevent sprains.
The means for doing so will be explained in detail.

In shoe soles in which urethane resin is injected into the upper surface of an outsole molded from urethane resin, other synthetic resins, or synthetic rubber, and a midsole is integrally molded onto the outsole, a notch is cut out at an arbitrary part that is harder than the midsole member before integral molding. A plurality of insert members provided with holes or holes are interposed parallel to the width direction of the heel portion of the midsole member at desired intervals until the midsole is approximately centered. I made it into the sole of my shoe.

(Function) Since the configuration is as described above, the heel part is the outsole, and the insert member is placed on the outsole at a distance parallel to the width direction of the heel part until the middle of the midsole. Since the structure has a mid-sole member interposed above, when the shoe is worn with an instep on the sole, the heel where the foot touches,
Since the mid-sole layer is on the top surface and the hard insert member is interposed in parallel approximately halfway, the mid-sole layer acts as a cushion during normal walking, allowing the wearer to feel soft to the touch.

When running, shock is applied and the mid-sole layer on the top of the insert is compressed, but since the insert is interposed in parallel underneath, this insert provides almost even support even against excessive shock. The heel part does not deform excessively, and the midsole material flows into the notch or through hole provided in any part of the insert member and is fixed, so it does not fall off.In particular, the heel part does not deform in the lateral direction. This decreases significantly.

(Example) An outsole 1 molded from urethane resin or other synthetic resin or synthetic rubber is placed in a mold,
In a shoe sole in which a side mold is arranged, urethane resin is injected into the upper surface of the outsole 1, and the midsole 2 is integrally molded on the outsole, insert members 3, 3, . A shoe sole with an insert member provided with a notch or a through hole at an arbitrary location parallel to the width direction of the heel portion 4 of the midsole at a plurality of desired intervals 6 up to approximately midway 5 of the midsole. be.

(Effects) The sole of this invention has excellent cushioning properties since the front part excluding the heel consists of only the outsole and the midsole. Since the heel part is provided with insert members 3, 3, etc. which have cutouts or through holes at arbitrary parts in the midsole 2, these members support the impact applied to the heel part 4 almost equally, and the heel part Since it does not deform excessively in the anteroposterior and lateral directions, sprains are reduced.

Further, since the insert members 3, 3, . . . are interposed parallel to the width direction of the heel portion 4 at desired intervals 6, they do not hinder the heel portion from bending in the front-rear direction during running. Since the midsole layer is present on the upper surface of the insert member, the cushioning effect can be maintained. In particular, when used in the sole of a shoe for tennis or other sports that involve hitting the ball, which places stress on the heel, the insert member creates a resistance force on the heel, which has the effect of increasing the repulsive force of the ball.

Thus, it is useful for use in the soles of various sports shoes that are used for repeated hitting and running.

[Brief explanation of drawings]

Fig. 1 is a perspective view, Fig. 2 is an explanatory perspective view showing an example of molding, Fig. 3 is a transparent explanatory view of the main part, and Fig. 4 A and B are insert members. FIG. 1...Outsole, 2...Mitsudosole, 3
...Insert member, 4...Heel part, 5...Middle part,
6... Spacing, A... Notch, B... Through-hole.

Claims (1)

[Scope of utility model registration request] In the sole of a shoe in which urethane resin is injected into the upper surface of an outsole molded from urethane resin, other synthetic resin, or synthetic rubber, and a midsole is integrally molded on the outsole, a notch is cut in an arbitrary part that is harder than the midsole member before integral molding. A shoe sole with an insert member, characterized in that a plurality of insert members provided with holes or holes are inserted in parallel to the width direction of the heel part of the midsole, at desired intervals up to approximately the midpoint of the midsole. .