JPH066722Y2 - Spike shoes suitable for track and field competitions - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to spike shoes suitable for athletic races, and mainly relates to improvement of the soles thereof.

<Prior art> Conventional spike shoes for athletics are used for the purpose of obtaining forward propulsion force and preventing inadvertent slippage. It was provided with spikes attached to the sides and heel side.

<Problems to be Solved by the Invention> In the conventional spike shoes for athletics described above, four shoes are provided mainly on the front stepping part and the heel stepping part of the sole, for example, four on the front stepping part. According to the purpose of each race, such as short-distance, medium-distance, long-distance or hurdles, or jumping, such as 6 or 6 pieces, 0 or 1 or 2 on the heel tread. The number of spikes and the mounting position were determined.

However, in order to firmly fix the spike base or the nut or the like that is coupled to the spike base to the predetermined part of the shoe sole, the side of the fixing part is hardened or made thick, so that the shoe wearer mainly wears the foot. There is a risk of hindering flexion in the region just below the metatarsophalangeal joint group. By the way,
The slippage between the ground and the shoe depends on the maximum static friction angle determined by the material properties of which it is composed. That is, if the angle of the reaction force received from the ground of the shoe is within the maximum friction angle, slippage does not occur. Therefore, according to an experiment in which the slip of the foot or shoe of the shoe wearer from the landing at the heel end to the floating at the tip of the nail is determined, an athletic field is constructed, for example, as shown in FIGS. The maximum static friction angle between the material of a typical truck and a general shoe is 42 °, and the reaction force angle of the shoe (and the foot) exceeding this maximum static friction angle is only in the (D) state and thereafter. . That is, it shows that slippage does not occur in the states (A) to (C) before that. That is, it was found from the results of the experiment that the spikes attached to the front stepping portion and the like did not substantially contribute to the promotion of kick force by the toes of the shoe wearer and the prevention of inadvertent slippage.

<Means for Solving the Problem> In order to solve the above-mentioned problems, the present invention relates to a shoe which is attached to a hood and a bottom surface thereof, and a spike shoe in which a spike is attached to a predetermined portion of the shoe sole. Only one, two or three spikes (3) are provided on only the toe side (d) on the bottom side of the sole (2), and the heel step portion side (on the bottom side of the sole (2) ( The new means is to attach the cushioning member (5) to the side edge from (a) to the outer side edge (e) of the stepless side (b).

<Effect> Therefore, the spike shoes suitable for racing of the present invention are the second
As shown in FIGS. I to III and FIG. 5 I, the footwork of the foot of the shoe wearer, that is, the side along the outside of the foot step side (b) from the landing on the heel step side (a) of the sole (2) After passing through (e), further through the front tread side (c), after the kick at the toe side (d) after the kick, in the series of ascending movements, the front tread side (c) is almost shocked. There is no load and there is little need to suppress slippage. Rather, the flexibility corresponding to the flexion movement by the metatarsophalangeal joint group is located just below the metatarsophalangeal joint group of the shoe wearer's foot. Is required, and the results of the experiment show that spikes (3), (3) on the front tread side (c)
Not only is the side slippery when there is no slippage even when the shoe wearer cannot detect it, but the slight slippage rather has a function of cushioning the impact. Therefore, the spike shoe of the present invention has a small number of spikes (3) and a spike fixing plate (4).
Not only contributes to the lightness of the spike shoes by reducing the size of the shoe, but also makes the part directly under the metatarsophalangeal joint group of the shoe wearer's foot flexible and makes the metatarsophalangeal joint group of the foot The refracting motion of the shoe can be made smoother and the forward driving force of the shoe wearer can be promoted. In addition, by stopping the above-mentioned spike fixation plate in the region slightly anterior to the area directly below the metatarsophalangeal joint group, it is possible to facilitate flexion of the metatarsophalangeal joint group and facilitate running in a race. I was able to close it.

<Embodiment> The spike shoes for track and field competition of the present invention will be described below with reference to the drawings.

The spike shoes suitable for racing according to the present invention are the first
As shown in FIG. I, the shoe sole (2) is joined to the bottom side of the cover (1) with a desired adhesive. The sole (2) is provided only on the toe side (d) excluding the heel step side (a), the non-step side (b) and the front step side (d), for example, as shown in FIG. As shown in III, a spike fixing plate (4) having a base (not shown) of the spike (3) or a nut (not shown) that is coupled to the base of the spike embedded and fixed is joined by, for example, an adhesive. .
At this time, the spike fixing plate (4) can be directly bonded to the toe side (d) on the bottom surface side of the cover (1) through an adhesive. At this time, the shoe sole (2) should be under the size equivalent to the heel tread side (a), the stepless side (b) and the front tread side (c) excluding the toe side (d). It may be joined to the bottom side of the hem cover (1), and the shoe sole including the spike fixing plate (4) equivalent size from the heel step side to the toe side (d) The shoe sole (2) formed in the shape of spikes (3), (3) (3) or (3) (3)
It may be joined to the bottom side of the cover (1) so that only (3) is projected through. The spike fixing plate (4) may be a molded product of a thermoplastic resin such as nylon or polyurethane resin. Furthermore, as shown in FIGS. 2 to III and FIG. 3I, etc., according to the footwork of the foot (F) of the shoe wearer, the side along the outer side of the side of the heel step (b) from the side of the heel step (b) From (e) to the front tread side (c) to the kick by the toe side (d) A side necessary to mitigate the impact on each side due to the movement of the center of gravity of the shoe wearer, for example, the largest impact The foam rubber, foam resin or other cushioning member (5) is attached only to the outer side (e) of the heel step portion side (a) and the non-step portion side (b) which are loaded with. The cushioning member (5) may be joined and bonded to the bottom side of the shoe sole (2) or between the cover (1) and the shoe sole (2).

The spike shoes suitable for track and field competition of the present invention are, as shown in FIGS. 1, I, 2 to III, and 3 I, a shoe sole (2) or a bottom surface of a scab (1). Toe side on the side (d) For example, the anterior part of the foot of the shoe wearer's toes, somewhat anterior to the side just below the metatarsophalangeal joint group of the shoe wearer's foot (F) (f), It suffices that the spike fixing plate (4) is attached only to the side directly below the middle phalanx and the distal phalanx. The spike fixing plate (4) has three spikes as shown in Fig. 2 III.
(3) (3) The size or shape corresponding to the toe portion side (d) so that (3) is attached or the size or shape of only the toe as shown in FIG. 2I may be used.

The spike shoes suitable for racing of the present invention of the present invention are, as shown in FIGS. 1, I, 2 I to III, and 3 I, etc., a shoe sole (2) or a bottom side of a cover (1). Spikes (3) and spike fixing plates (4) for fixing the spikes (3) to the heel step side (a), the stepless side (b) and the front step side (c)
Without the provision of spikes, spikes (3), (3) (3), or (3) (3) (3) only slightly anterior to the side just below (f) of the metatarsophalangeal joint group of the foot of the shoe wearer. ) Is installed.

[Brief description of drawings]

FIGS. 1A and 1B are schematic side views of spike shoes suitable for track and field competition of the present invention. 2 through I
III is an illustration of a schematic view of an embodiment showing the bottom side of the spike shoe of the present invention. 3 I and II are also schematic vertical cross-sectional views of the sole of the spike shoe and also showing the foot (and its skeleton) of the shoe wearer, where I is the basic embodiment of the present invention. 2 and II also show another embodiment. FIG. 4 is a schematic bottom view of an example of a conventional spike shoe. 5 I to III are schematic diagrams for explaining the mechanism of slipping of shoes (and feet),
Is a schematic diagram showing the maximum static friction angle between the shoe (and the foot) and the ground and the reaction force angle from the ground, and II is the ground contact state of the shoe (and the foot) at four points (A) to (D) with respect to the ground. A schematic diagram and III are graphs showing the relationship between I and II. <Symbols on the drawing> (F) …… Foot (1) …… Cover (2) …… Sole (3) …… Spike (4) …… Spike fixing plate (5) …… Cushioning member

Claims (2)

[Scope of utility model registration request] 1. In a spike shoe having a hem cover and a shoe sole joined to the bottom side thereof and a spike attached to a predetermined portion of the shoe sole, only the toe side (d) on the bottom side of the sole (2). Spike shoes suitable for athletics races characterized by having one, two or three spikes (3) protruding. 2. The sole (2) of the bottom of the shoe sole (2)
To the outer side of the stepless side (b) to the side (e)
Spike shoes suitable for track and field competitions according to claim 1, characterized in that (5) is attached.