JPS631843Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> This invention relates to a footwear sole that does not slip on rocks, etc.

<Prior Art> Felt soles have the advantage that they do not become slippery like rubber soles even when wet with water or oil. In order to make this type of felt bottom even more difficult to slip on rocky areas, it was a practice to embed spikes in it.
It is shown in Publication No. 49445. The spikes used are those made of a steel plate formed by bending columnar legs around a circular or polygonal plate base, or those shaped like a thumbtack.

<Problems to be solved by the invention> The legs of the above-mentioned steel plate spikes have rectangular cross-sections with corners, and often have blade-like burrs formed during press forming. When such spikes are embedded in the felt sole, the relative movement between the spike leg and the felt sole that occurs when walking causes
The felt may be cut by the corners or turns of the legs, causing the spikes to wobble or fall off. In addition, thumbtack-shaped spikes must be cut out of thick steel or forged, which makes them extremely expensive and difficult to attach a large number of them to the sole of footwear.

<Means for Solving the Problem> In this invention, the anti-slip metal fittings, that is, the spikes embedded in the felt bottom are made of metal wire, preferably steel wire, and have a central portion bent in a plane; That is, it consists of a base and both leg portions that are bent from both ends of the base in a direction substantially perpendicular to the above-mentioned plane. Both leg portions are pierced from the first surface, ie, the top surface, of the felt sole toward the second surface, ie, the bottom surface. A first side of the felt sole is provided with an adhesive layer, and an adhesive is continuously impregnated into a portion of the felt sole proximate to the first side.

<Function> The metal wire anti-slip metal fitting in this invention is unlikely to cause relative movement with the felt bottom because the center portion and the upper portions of both leg portions are fixed to the adhesive layer and the adhesive-impregnated layer. In addition, since the metal wire anti-slip metal fitting has a circular cross section, there is no risk of cutting the felt bottom, and the required cost is extremely low.

<Example> In FIG. 1, 1 is a felt bottom, through which both legs 21, 21 of a steel wire anti-slip fitting 2 are pierced from the top surface 11 toward the bottom surface 12, and the tips of both legs 21, 21 are attached to the felt bottom. It reaches the same level as the bottom surface 12 of, or protrudes slightly. An adhesive layer 3 is provided on the upper surface 11 of the felt sole, and an adhesive impregnated layer 4 continuous with this is formed in the felt sole 1 to attach the central portion 22 of the anti-slip fitting 2 and both legs 21, 2.
The upper part of 1 is fixed.

The center portion 22 of the anti-slip metal fitting 2 is designed to prevent the anti-slip metal fitting from collapsing within the felt sole 1 during wear.
It is bent in an appropriate shape within a plane along the top surface 11 of the felt bottom. Figures 2, 3, 4 and 5
The figures show various shapes of the anti-slip fitting 2, and the central portion 22 is U-shaped in the example shown in FIG. 2, S-shaped in the example shown in FIG. 3, W-shaped in the example shown in FIG.
In the example shown in FIG. 5, it has a spiral shape.

<Effect of the invention> As mentioned above, the anti-slip fitting in this invention is
Not only is it cheap because it is made by bending metal wire, but it also does not have sharp edges like anti-slip fittings made by punching steel plates, so there is a risk of cutting the felt bottom. There is no. Therefore, since there is no risk of slipping and falling due to the anti-slip fittings coming off during wear, it is possible to provide a non-slip sole with high safety and a long life at a low cost.

[Brief explanation of the drawing]

Figure 1 is a partial sectional view of an embodiment of this invention, Figure 2 is a partial sectional view of an embodiment of this invention.
3, 4, and 5 show various shapes thereof, and in these drawings, a is a front view, b is a side view, and c is a plan view. 1... Felt material, 11... First side, 12
... second surface, 2 ... anti-slip fitting, 21 ... both leg parts, 22 ... center part, 3 ... adhesive layer, 4 ...
Adhesive impregnated layer.

Claims (1)

[Scope of utility model registration request] The two leg portions of the anti-slip fitting are made up of a central portion formed by bending a metal wire in a plane and both leg portions formed by bending both ends of the central portion in a direction substantially perpendicular to the plane. pierce the felt material toward the second surface, provide an adhesive layer on the first surface of the felt material, and add an adhesive-impregnated layer continuous to the adhesive layer inside the first surface side of the felt material. Anti-slip footwear soles formed by forming.