JPH0518967Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to the improvement of shoe soles used for golf, soccer, baseball, and other sports.

(Prior Art) Conventionally, shoes used for golf, soccer, baseball, etc. have been manufactured with spikes, studs, points, etc. attached or integrated with them. However, when wearing these shoes, the hard parts such as spikes and studs push up the soles of the feet, creating a so-called thrusting sensation, which can cause pain and stiffness. There were problems such as the wearer becoming easily fatigued and the feeling of wearing it being significantly impaired.

Therefore, as disclosed in Japanese Utility Model Publication No. 1987-8725 shown in FIG. Above the spike group located in the attached part,
The rigid filling is cut out below the inner core part 12 of the insole, and rubber, synthetic resin sponge, soft rubber, etc.
Golf shoes 14 having a cushion material 13 such as synthetic leather inserted therein are already known.

The following disclosure is also made in United States Patent No. 3,512,274 (issued May 19, 1970).

That is, ``the spike attachment nut is properly and reliably assembled so that it is contained within a laminated layer of leather and a facing rubber layer that are bonded together with an adhesive. These layers are attached so as to run across the width of the shoe at the rear of the area connecting the ball of the big toe and the ball of the foot and at a location that does not reach the end of the edge of the outsole. '', and the gist of the present invention is to alleviate the feeling of pushing up due to spikes by arranging a rubber layer.

As described above, various measures have been taken to prevent shoes that are fitted with spikes, studs, etc. from causing a feeling of pushing up when worn, but none of them have yielded satisfactory results.

(Problem to be solved by the invention) In other words, conventional methods for preventing the feeling of pushing up include forming a recess in the insole and laminating and bonding plates such as sponge or rubber, or A two-component polyurethane resin (trade name: Sorbothane, manufactured by Sanshin Kosan Co., Ltd.) that has through-holes and recesses in the heel region and has high shock absorption performance.
There are also products that are made by laminating materials such as polynorbornene and polynorbornene.

However, in competitions such as golf, soccer cars, and baseball, using only board materials such as sponge or rubber is somewhat effective in cushioning shocks, but because it is thin, it does not completely prevent thrusting when worn. There was a problem that was said to be difficult to prevent.

For this reason, one possibility is to increase the thickness of the plate material such as sponge or rubber, but with these conventional methods, the plate material is attached to areas that do not need to be prevented from pushing up, which may increase the weight of the sole. I had a problem.

On the other hand, in the case of the latter, they have excellent shock absorption performance and are highly effective in preventing push-up when worn, but on the other hand, these materials have poor adhesion and wear and tear after repeated wear. This has caused problems such as adhesive peeling between the insole and the insole, causing it to peel off from the insole and slipping.

Therefore, it has been desired to develop a sole that completely prevents the feeling of pushing up when worn, has good shock absorption performance, and has good adhesiveness to other members.

(Means for Solving the Problems) In view of these conventional drawbacks, the present invention provides a shoe sole having the following configuration.

In other words, on the upper surface of the thermoplastic synthetic resin outsole to which spikes, studs, etc. are attached or integrated, a convex shape of any shape is placed on the spikes, studs, or other areas that are subject to load when worn. This shoe sole is provided with a shock-absorbing member having a portion or a recess surrounding the outer periphery, and the shock-absorbing member is embedded in a foamed synthetic resin sole.

(Function) Since the present invention has the above configuration, the following effects occur. That is, the 11th
The area marked with a circle on the sole of the foot in the figure is subject to a large load when walking or exercising, but in this invention, a shock-absorbing member made of foamed synthetic resin with good shock-absorbing performance is applied to these areas. Because it was buried in the bottom,
This prevents the feeling of pushing up when worn, and has a synergistic effect with the foamed synthetic resin outsole, resulting in a significantly better wearing feel than conventional ones.

In addition, in the present invention, since the shock absorbing member has an arbitrary shape and has convex portions or concave portions around the outer periphery, unlike conventional ones, when buried in a foamed synthetic resin bottom, these convex portions will be removed. Since the foamed synthetic resin is fitted and locked in the part or the recess, the adhesive properties are good and the shock absorbing member does not peel off or shift even after repeated wear. Furthermore, since the shock absorbing member according to the present invention can be installed in any desired location and shape, the sole itself can be made lighter.

(Example) An example of the present invention will be described based on the drawings, that is, as shown in FIGS. 1 to 10,
In the thermoplastic synthetic resin outsole 1 to which spikes 3, studs 4, etc. are attached or integrated, on the upper surface 2 of the thermoplastic synthetic resin outsole 1, the spike parts 3a and stud parts 4a, which are subjected to loads when worn, are A shock-absorbing member 8 having a convex portion 6 or a concave portion 7 around the outer periphery is installed in the other load-bearing area 5, and the shock-absorbing member 8 is attached to a bottom 9 made of foamed synthetic resin.
This is a shoe sole configured to be buried in the ground.

The shape of the impact buffering member 8 is a curved shape 8a that matches the curvature of the outer periphery of the sole as shown in FIG.
The shape 8b approximately matches the metatarsal region including the ball of the big toe and the ball of the foot as shown in FIG. 4, and the shape 8b shown in FIGS.
It can be formed into a cylindrical shape 8c as shown in the figure or any other shape that matches the location where the load is applied.

Further, in the present invention, the shock absorbing member 8 is buried in the bottom 9 made of foamed synthetic resin, but as an example of the embedding method, for example, after injection molding the thermoplastic resin bottom, After fixing the insert into the outsole mold and casting two-component polyurethane foam resin to form the outsole with appropriate recesses for fitting the impact cushioning member, the impact cushioning member is placed in the recesses with adhesive. A method of fitting and embedding can be used.

In addition, as shown in Figure 7, after injection molding a thermoplastic resin sole, a pre-molded shock absorbing member is attached to the thermoplastic resin sole, the insert is fixed to the main sole mold, and two-component polyurethane foam is It is also possible to cast resin and embed the shock absorbing member.

Furthermore, as materials for the shock absorbing member used in the present invention, the above-mentioned two-component polyurethane resin (trade name Sorbothane) with good shock absorption performance, special rubber such as polynorbornene, and other rubbers with good shock absorption performance can be used. In addition to using foamed polyurethane resin, sponge, and other materials with appropriate hardness depending on the foot pressure distribution on the sole of the foot,
It is possible to use anti-vibration rubber or the like that conforms to the JIS-K6386 standard by appropriately arranging it.

In addition, although not shown, the foamed synthetic resin sole in which the impact cushioning member is buried may have an area approximately equal to the upper surface of the thermoplastic resin bottom, in addition to the form shown above. It may be formed into an appropriate size as necessary.

(Effects of the invention) As described above, the present invention embeds a shock-absorbing member with good shock-absorbing performance in the foamed synthetic resin outsole, which prevents the feeling of pushing up when worn, and prevents the foamed synthetic resin outsole. Due to the synergistic effect with the sole, the shoe feels much better when worn than conventional shoes.

Furthermore, in the present invention, since a shock absorbing member having an arbitrary shape and having convex portions or concave portions around the outer periphery is used, when buried in a foamed synthetic resin bottom, these convex portions or concave portions In addition to the foamed synthetic resin fitting and locking, it also creates an anchoring effect when bonded, so the adhesion is good, and even after repeated wear, the impact cushioning member will not peel off like in the past.
This prevents the occurrence of misalignment.

Furthermore, since the shock absorbing member according to the present invention can be installed in any desired location and shape, the sole itself can be made lighter, unlike conventional shoe soles.

Furthermore, as an example of the effect of the present invention, in the case of golf shoes, a shock absorbing member with high shock absorption performance is placed in the area of the sole of the foot that is particularly loaded, and other areas are covered with shock absorbing members made of high-hardness polyurethane foam. By arranging the buffer member, it is possible to play comfortably.

Furthermore, in sports such as baseball and soccer, by arranging a shock absorbing member with shock absorbing performance at the part of the heel that receives the most load, it is possible to reduce foot disorders such as heel spurs.

[Brief explanation of the drawing]

1 and 2 are plan views showing a shoe sole according to the present invention, FIGS. 3 and 4 are perspective views showing a shock absorbing member used in the shoe sole according to the present invention, and FIG. 5 is a plan view showing a shoe sole according to the present invention. , FIG. 6 is a cross-sectional view showing a main part of a golf shoe which is an embodiment of the sole of the present invention, FIG. 6 is a perspective view of the shock-absorbing member according to the present invention shown in FIG. 5, and FIG. FIG. 8 is a sectional view showing a main part of a soccer shoe which is an embodiment of the shoe sole according to the present invention, and FIG. 8 is a perspective view of the impact cushioning member according to the present invention shown in FIG. 11 is a plan view showing a load portion applied to the sole of the foot; FIG. 12 is a cross-sectional view of a main part of a conventionally known shoe sole. figure. 1...Thermoplastic synthetic resin sole, 2...Top part,
3... Spikes, 4... Studs, 5... Load bearing parts, 6... Convex parts, 7... Concave parts, 8,8
a, 8b, 8c... impact buffering member, 9... matching bottom,
10...Synthetic resin bottom, 11...Spikes, 12...
...Middle sole core part, 13...Cushion material, 14...
golf shoes.

Claims (1)

[Claims for Utility Model Registration] 1. In a thermoplastic synthetic resin outsole 1 equipped with or integrated with spikes 3, studs 4, etc., there are spikes on the upper surface 2 of the thermoplastic synthetic resin outsole 1 that are subjected to a load when worn. Part 3a and stud part 4a
Alternatively, a shock-absorbing member 8 having a convex portion 6 or a concave portion 7 surrounding the outer periphery is installed in another load-bearing area 5, and the shock-absorbing member 8 is buried with a bottom 9 made of foamed synthetic resin. A sole configured to 2 The shape of the impact buffering member 8 may be a curved shape 8a that matches the curvature of the outer periphery of the sole, a shape 8b that approximately matches the metatarsal region including the ball of the big toe and the ball of the little foot, a cylindrical shape 8c, or other shapes that can accommodate the load. The shoe sole according to claim 1, wherein the sole is formed into an arbitrary shape that matches such a location.