JP3295805B2 - Spike pin - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spike used for sports such as athletics and soccer, which is screwed and fixed to a bottom surface of a spike shoe.

[0002]

2. Description of the Related Art Conventionally, spikes attached to the bottom surface of dedicated shoes used in sports such as athletics and soccer are expensive and heavy when formed entirely of hard metal such as duralumin. From, spikes that combine metal members of different hardness, for example, a spike head made of a hard metal such as duralumin, and a spike main body made of a soft metal such as aluminum that is lightweight and inexpensive, have been developed. A shaft portion having a circular cross section and a screw portion for attachment are integrally formed with duralumin on the back surface, a through hole is formed in the spike main body, the shaft portion is fitted into the through hole, and the spike head is a tip of the spike main body. And the screw portion is formed to penetrate and protrude from a mounting surface mainly composed of spikes.

[0003]

However, in the case of a spike formed by combining metal members having different hardnesses as described above, a metal having a low hardness has lower wear resistance than a metal having a high hardness, and the spike has The spike main body is rubbed because it is used to sink into the ground, and the aluminum spike main body wears faster than the duralumin spike head due to this friction, and the spike head due to the user's body shape and running habit And the side part of the spike main body may be unevenly worn, the contact area between the back surface of the spike head and the end surface of the spike main body is reduced,
The spike main body rotates individually around the axis of the spike head, causing loss in spike functions such as stepping and agile movement required for this type of sports shoes, and especially in spikes with direction other than circular cross section Had a problem that significantly impaired the spike function.

[0004] In addition, the rotation of the spike main body induces the rotation of the spike head in the loosening direction, causing the spike to fall off the sole of the shoe and the spike main body to rattle or rotate, causing the inner surface of the through hole to be worn. When the spike head is worn out and the back surface of the spike head wears, a gap is created, and the external force applied to the spike becomes a bending force on the shaft, causing breakage near the root of the shaft,
There is also a problem that the spike main body comes off from the shaft portion and loses the spike function.

Accordingly, the present invention prevents the spike main body and the spike head from rattling and rotating due to wear or uneven wear of the spike main body and the shaft portion, thereby preventing the spike function from lowering and the spike from falling off. An object of the present invention is to provide a highly durable spike capable of maintaining a spike function for a long period of time by preventing breakage of a shaft portion and removal of a spike main body due to the shaft portion.

[0006]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is intended to solve the above problem. In a spike composed of a combination of metal members having different hardness, a spike head made of a metal having high hardness is provided. The fitting male portion projecting from the back surface and a stepped portion formed thereon, and one or both of the mounting shaft portions formed continuously have a cross-sectional shape other than a circle such as a polygon or an ellipse, and the mounting is performed. Forming a threaded portion that is continuous with the shaft portion and abutting against the back surface of the spike head, the end surface of the low-hardness metal spike main body has a fitting hole having a shape corresponding to the fitting male portion, A through hole through which the mounting shaft penetrates is formed in a shape corresponding to the shaft portion, and the fitting male portion and the mounting shaft portion are fitted into the fitting hole and the through hole, respectively, so that the spike head and the spike main body rotate mutually. And to prevent withdrawal Basic to that.

A caulking shaft portion is interposed between the mounting shaft portion and the screw portion, and the male fitting portion and the mounting shaft portion are press-fitted into fitting holes and through holes, respectively. May be deformed by the caulking means to form a stopper which hangs on the periphery of the through hole mainly composed of the spike, so that the spike head and the spike mainly can be prevented from coming off.

[0008]

According to the spike according to the present invention, the cross-sectional shape of one or both of the fitting male portion (12) and the mounting shaft portion (13) is formed into a shape other than a circle such as a polygon or an ellipse. The fitting hole (28) and the through hole (29) to be press-fitted have shapes corresponding to the fitting male part (12) and the mounting shaft part (13), respectively, and the spike main body (2) is attached to the spike head (1). Since it is prevented from rotating, the spike main body (2) alone does not rotate.

Therefore, when the spike main body (2) wears faster than the spike head (1), or when the spike head (1) wears unevenly due to the user's body shape or running habit, the back surface (11) of the spike head (1). ) And the end face (23) of the spike main body (2), even if the contact area decreases, regardless of the degree of wear, prevents the spike main body (2) from rotating or rattling with respect to the spike head (1) and extends the spike function for a long time. The spike function can be exhibited, and the spike does not shift even in the case of a directional spike, so that the spike function can be maintained for a long time.

The spike main body (2) is a spike head.
Since the spike head (1) does not rotate individually with respect to (1), the spike head (1) rotates inadvertently in the loosening direction, so that the spike does not fall off the sole of the shoe, and the inner surface of the through hole (29) The spike head (1) has no gaps due to wear and spreading, and the back surface of the spike head (1) does not break, preventing breakage of the mating male part (12) and the mounting shaft (13) near the root due to external force. However, the spike main body (2) does not come off and lose the spike function.

Further, a step (1) is formed continuously with the fitting male part (12).
2a) and the mounting shaft (13) are formed.
(12) and a fitting hole (28) corresponding to the mounting shaft (13) and a through hole (29)
Even if the contact area between the back surface (11) of (1) and the end surface (23) of the spike main body (2) is reduced, the fitted state near the step (12a) is surely maintained, and the spike main body is maintained. (2) does not move in the axial direction of the mounting shaft (13) and does not rattle.

Further, the caulking shaft (14a) is connected to the mounting shaft (13).
And the screw portion (15), and after the spike head (1) and the spike main body (2) are fitted, the caulking shaft portion (14a) is deformed by the caulking means to form the spike main body (2). Since the stopper (14b) is formed around the periphery of the through hole (29), the spike head (1) and the spike main body (2) are more reliably prevented from coming off, and the spike function can be maintained for a long time.

As described above, the backlash and rotation of the spike main body (2) and the spike head (1) due to wear or uneven wear of the spike main body (2) and the shaft portion are prevented, so that the spike function is reduced and the spikes fall off. In addition, it is possible to provide a highly durable spike which can maintain the spike function for a long period of time by preventing breakage of the shaft portion and detachment of the spike main body (2) due to this.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A spike according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a state in which the spike is disassembled, FIG. 2 is a front view of the spike, and FIG. FIG. 1 is a sectional view taken along line AA of FIG. 1, which is a spike for a soccer shoe having a height of 16 mm, in which a spike head (1) made of duralumin is pressed into a spike main body (2) made of aluminum.

[0015] As shown in FIG.
(1) has a tip surface (23) and a back surface (11) each having a diameter of 9 mm,
It is a flat frusto-conical shape with a height of 11 mm and a height of 6 mm, and a fitting male part (12) with a square shape with a cross section of 6 mm and a height of 3 mm is protruded from the center of the back surface (11). , Continuous to the center of the fitting male part (12), the cross-sectional shape is a square having a side of 5 mm and a height of 5 m
m, a step (12a) having a width of 0.5 mm is formed around the mounting shaft (13), and the mounting shaft (13)
A cylindrical caulking shaft portion (14a) having a diameter of 5 mm and a height of 1.5 mm is formed continuously at the center of the shaft, and a screw portion (15) having a diameter of 4 mm continuous with the caulking shaft portion (14a). are doing.

Next, the spike main body (2) has an end surface (23) having a diameter of 9 mm corresponding to the back surface (11) of the spike head (1), and has a tapered side portion of the spike head (1). A truncated cone-shaped seat body having the same taper as (21)
And a skirt portion (22) having a mounting surface (24) having a diameter of 18 mm in contact with the bottom surface of the soccer shoe, and having a larger taper than the spike head (1) and the spike main body (2). By making the taper of the seat body (21) the same gentle taper as the spike head (1), the friction of the side surface of the seat body (21) when using spikes can be reduced, and the spike becomes hard to wear out. This prevents the seat body (21) from rattling and coming off due to wear.

Further, a fitting hole (28) having a side length of 6 mm and a depth of 3 mm corresponding to the fitting male portion (12) is provided from the end face (23) side of the seat body (21), Following this, the mounting shaft (1
A through hole (29), corresponding to (3) and having a side of 5 mm and a depth of 5 mm, is formed through the mounting shaft (13).

On the other hand, an outer edge of the mounting surface (24) of the skirt portion (22) is provided with a mounting edge which is in close contact with the bottom surface of the soccer shoe.
(25) to form a slope from the mounting edge (25) to the center.
In (27), a rotation preventing ridge (26) that prevents the spike from rotating in the loosening direction by immersing in the bottom surface of the soccer shoe
Are formed radially, and a recess is formed near the center of the mounting surface (24) so that the stopper (14b) described later does not interfere with the bottom surface of the soccer shoe.
On the side of (22), recesses (30) for setting tools for attaching and removing spikes are formed at three locations at equal intervals.

As shown in FIG. 2 or FIG. 3, the spike head (1) and the spike main body (2) are mounted by fitting a fitting male part (12) protruding from the spike head (1) and a mounting shaft ( 13)
By press-fitting into a fitting hole (28) and a through-hole (29) formed in the spike main body (2) by pressing means or the like. Further, the caulking shaft portion (14a) interposed between the male fitting portion (12) and the mounting shaft portion (13) is deformed by caulking means to form a stopper (14b), and the stopper (14b) Of the spike main body (2) so as to hang around the periphery of the fitting hole (28).
The spike head (1) and the spike main body (2) are more reliably prevented from coming off.

Next, the attachment and use of the spike will be described. The screw portion (15) of the spike is screwed into the spike mounting hole of the soccer shoe, and the claw corresponding to the concave portion (30) formed in the skirt portion (22). Tighten the spikes using a wrench equipped with In this case, the skirt (22) is
Because it has a shape that protrudes horizontally compared to (21),
It is easy to rotate, can be strongly tightened with a small operating force, and can securely attach spikes.

A mounting edge (25) formed on the mounting surface (24)
Is tightly attached to the bottom of the soccer shoe, preventing the spikes from loosening and preventing intrusion of water and soil, and the anti-rotation ridge (26) sinks into the bottom of the soccer shoe and turns the spike main body (2). Movement, and the spikes are mainly formed by the cross-sectional shape of the male fitting (12) or the mounting shaft (13).
Spike head (1) that is prevented from rotating with respect to (2)
Also does not rotate with respect to the soccer shoes, so that rotation and play of the spikes are prevented, and accidental removal of the spikes is prevented.

Further, the spike head (1) is mainly connected to the spike head (1) by the fitting male portion (12) formed on the spike head (1).
Since the contact area between the two members when they are fitted to (2) increases, they are strongly coupled to each other, thereby preventing the mounting shaft portion (13) of the spike main body (2) from moving in the axial direction and rattling.

The spike according to the present invention described above is not limited to the above-described embodiment, and it is needless to say that the dimensions can be appropriately changed according to the type of spike. The cross-sectional shape of the portion (13) can be various polygons other than a square, an ellipse, or a combination thereof, and the shapes of the corresponding fitting holes (28) and through holes (29) are the same. is there. Also, spike head (1)
The combination of the main body and the spikes (2) can be performed by means of shrink fitting in addition to press-fitting means.

[Brief description of the drawings]

FIG. 1 is a perspective view of a state where a spike according to an embodiment is disassembled.

FIG. 2 is a front view of a spike.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

[Explanation of symbols]

 (1) Spike head (2) Spike main body (11) Back side (12) Male fitting (12a) Step (13) Mounting shaft (14a) Caulking shaft (14b) Stopper (15) Screw ( 16) Tip surface (21) Seat (22) Skirt (23) End surface (24) Mounting surface (25) Mounting edge (26) Rotation preventing ridge (27) Inclined surface (28) Fitting hole (28) ) (29) Through hole (29) (30) Recess

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A43C 15/02 A43B 13/26

Claims (2)

(57) [Claims] 1. A spike composed of a combination of metal members having different hardness, a fitting male portion (12) protruding from a back surface (11) of a metal spike head (1) having high hardness, and Steps (12a) are formed, and the cross-sectional shape of one or both of the mounting shafts (13) formed continuously is formed into a shape other than a circle such as a polygon or an ellipse, and is continuously connected to the mounting shaft (13). A low-hardness metal spike that forms a threaded portion (15) and abuts against the back surface (11) of the spike head (1)
The end face (23) of (2) has a fitting hole (28) having a shape corresponding to the fitting male portion (12), and a mounting shaft portion (13) having a shape corresponding to the mounting shaft portion (13). Form a through hole (29) through which the male part (1
2) and the mounting shaft (13) with the fitting hole (28) and through hole (29) respectively.
A spike, wherein the spike is configured to be fitted to the spike to prevent mutual rotation and removal of the spike head (1) and the spike main body (2). 2. A caulking shaft portion (14a) is interposed between the mounting shaft portion (13) and the screw portion (15), and the fitting male portion (12) and the mounting shaft portion (13) are fitted respectively. After being press-fitted into the hole (28) and the through hole (29), the caulking shaft (14a) is deformed by caulking means to stop the stopper (14b 2. The spike according to claim 1, wherein the spike is formed.