JPH032163Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an improvement of a plate-shaped front sole that is attached to the front treading part of spike shoe shoes for track and field.

<Prior art and its problems> Conventionally, a plate-shaped front sole (hard plate) made of nylon or urethane-based synthetic resin has been attached to the front stepping part of spike shoes for track and field. The front bottom has a circular, swollen lower stepped portion formed at the spike attachment portion, and a screw hole for attaching a spike stud is formed in the center of the lower stepped portion. Normally, the spike rivet is screwed directly into the spike mounting portion via a threaded portion. By the way, recently, in order to further strengthen the anti-slip ability of the front sole, a structure in which a spike mounting seat plate made of a thin synthetic resin with multiple protrusions protruding from the periphery is attached in combination with spike studs is becoming popular. are doing. The latter type has a concave fitting part formed on the upper surface of the bulging spike mounting part formed on the front bottom into which the spike mounting seat plate can be fitted to prevent it from rotating. After fitting into the recessed fitting part, the spike rivet can be screwed onto the fitting part.

However, the front sole of this type is limited to those that are exclusively fitted with a spike mounting seat plate,
The former type had a drawback in that it could not be applied to the front sole to which spikes were directly attached.
This is because, although this type of product is designed to allow spikes to be attached, if the spikes are attached to the front bottom of this type, the recessed part formed in the spike attachment part of the front bottom As a result, the working part of the spike rivet would fit into the recess of the recessed part, and the structural problem that the spike rivet would not be able to exert a sufficient anti-slip effect was unavoidable. On the other hand, even if the spike mounting seat plate is not attached to the front bottom (the former type), the spike mounting seat plate can be attached, but the front bottom of this type does not have any structure to stop the rotation of the spike mounting seat plate. Because of this, the impact of the liner landing would cause the seat plate to loosen, making it unavoidable that the spike studs would fall off.

<Means for solving the problem> The present inventors focused on the defects of the conventional product mentioned above, and
As a result of intensive research into the technical issue of configuring the front sole body so that it can be used with both the use of a spike mounting seat plate and the use of only spike rivets, the following measures were adopted.

That is, the present invention consists of a synthetic resin plate and a spike mounting seat plate having a plurality of notched sides, which is removably disposed on a swollen spike mounting portion provided on the plate, and the spike of the plate Front tread of athletic shoes for track and field, which has a novel configuration in which small protrusions are formed protruding along each edge of the spike attachment seat plate on the attachment part to stop the rotation of the spike attachment seat plate. This is the front sole that is attached to the body.

<Example> Hereinafter, an example of the present invention will be described based on the drawings. As shown in FIG. 1, the present invention is made up of a synthetic resin plate 1 and a spike mounting seat plate 4 that is detachably attached to the plate 1. The synthetic resin plate 1 has a circular low stepped portion in its spike mounting portion 2, and a circular step is provided along each notch side 3 of the spike mounting seat plate 4 on the upper surface side of the low stepped portion. A small projection 5 is formed. At this time, the small protrusion 5
As shown in FIGS. 2 and 3, in order to stop the rotation of the spike mounting seat plate, the spike mounting portion 2 of the plate 1 is integrally attached so as to be in close contact with each notch side 3, 3 of the spike mounting seat plate 4. It is set up protrudingly. In addition, the small protrusions 5 may be formed to a height (size) that at least prevents the rotation of the spike attachment seat plate 4, but in order to enhance the anti-slip effect of the small protrusions 5 themselves, the spikes are attached at the time of installation. There is an advantage in that the ground holding power of the front sole body can be further strengthened by making the height higher than the height of the seat plate 4, that is, by making the tip portion protrude upward from the horizontal surface of the spike attachment seat plate 4.

Furthermore, since the small protrusions 5 can be formed into various shapes as shown in FIG. The anti-slip effect of No. 5 can be used extremely effectively. The spike mounting seat plate 4 has various shapes including a substantially triangular shape, but the spike mounting seat plate 4
The small protrusion 5 that prevents the rotation of the seat plate 4 is at least small.
It is sufficient to provide the minimum number necessary to stop the rotation.

<Operation and Effect> Therefore, the present invention has a small protrusion 5 on the top side of the spike attachment part 2 on the front bottom to stop the rotation of the spike attachment seat plate 4.
(1) Not only can the spike attachment seat plate 4 be attached to the front bottom, but also the spike studs 6 can be attached directly.

(2) Furthermore, since the small protrusions 5 can be protruded into various shapes, the anti-slip effect can be fully demonstrated, and the ground holding power of the front sole can be further enhanced.

[Brief explanation of the drawing]

The drawings show a typical embodiment of the front bottom of the present invention, in which FIG. 1 is a plan view thereof, FIG. 2 is an enlarged plan view showing the spike attachment part, and FIG.
FIG. 4 is a schematic cross-sectional view taken along a line, FIG. 4 is a plan view and side view of the spike attachment portion, and FIG. Reference numbers in the drawing: 2...Plate, 2...Spike attachment part, 3...Notch side, 4...Spike attachment seat plate, 5...Small protrusion, 6...Spike stud.

Claims (1)

[Claims for Utility Model Registration] 1. A spike having a synthetic resin plate 1 and a plurality of notched sides 3, which are removably attached to a swollen spike attachment portion 2 provided on the plate 1. A small protrusion 5 is formed protruding along each notch side 3, 3 of the spike mounting seat plate 4 on the spike mounting portion 2 of the plate 1 to stop the rotation of the spike mounting seat plate 4. A front sole to be attached to the front treading part of athletic shoes for track and field events. 2 The small protrusion 5 is at least as small as the spike mounting seat plate 4.
The front sole according to claim 1, which is a registered utility model, characterized in that the front sole is formed to be higher than the height of the spike mounting seat plate 4 when it is mounted.