JP3009837B2 - Cup stabilizer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cup-shaped stabilizer used for shoes, and relates to a cup-shaped stabilizer having a bottom surface and a continuous wall surface corresponding to the shape of the heel of a human body. This contributes to the improvement of the stability of the heel during running and the like, and is particularly effective for use in sports shoes.

[0002]

2. Description of the Related Art Protective equipment called stabilizers are frequently used in shoes, particularly sports shoes. Conventional stabilizers have a side wall that surrounds the heel portion between the upper cover and the midsole for protection of the heel portion, and are disclosed in Japanese Utility Model Publication No. 63-10726 and Japanese Utility Model Publication No. 2-4573. The horseshoe shape is generally used. These stabilizers are used to prevent the heel from swaying due to the deformation of the sole of the shoe due to the landing impact during running and the crossing impact during jumping.The material is mainly nylon resin with moderate elasticity and rigidity. , A PVC resin, a synthetic resin such as a polyurethane resin, and is generally formed by an injection method using a mold, although various molding means are available.

Further, in order to receive the load received on the heel not only on the side wall of the stabilizer but also on the entire surface including the stepping portion and to enhance stability, a bottom portion is provided at the stepping portion of the horseshoe-shaped stabilizer to form a cup. A formed stabilizer has been proposed. Also in this cup-shaped stabilizer, a synthetic resin having a moderate elasticity and rigidity is mainly used as a material thereof, and an injection method using a mold as a molding means is most common.

[0004]

By providing the stabilizer with a bottom portion in the form of a cup, it is possible to improve the holdability and stability from the foot, particularly from the arch to the entire heel portion, and to provide an impact upon landing. Was dispersed in the form of a plane and could be relaxed. However, in a series of running motions from when the heel lands to when the toe kicks out with a toe, a line connecting the points where the maximum pressure is applied on the tread surface of the shoe sole at a certain moment in a time series (hereinafter referred to as an excessive movement path) Figure 1)
As shown in the figure, enter from the outer side of the heel slightly inward to the instep side, move from the center of the heel to the direction of stepping on the land, and from the stomp part to the first finger through the ball of the toe Said,
Follow a complex path. Therefore, the conventional cup-shaped stabilizer has a problem that it is difficult to cope with a change in load, a change in direction, and a change in size.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention divides a cup-shaped stabilizer into an inner member and an outer member from the bottom to the side wall of the heel. By making the shape correspond to the load movement path, the impact when a load is applied is efficiently absorbed by the deformation of the bottom part and the midsole, and the stabilizer is displaced by the displacement of the stabilizer bottom part when absorbing the impact. An object of the present invention is to solve the above-mentioned problem by improving the holdability and stability due to the foot portion being pinched by the inward fall of the side wall portion. Further, by shifting the dividing groove to the inner or outer shell side with respect to the load moving path, the so-called over-suppression or over-supination is prevented, which also contributes to the prevention of a foot failure.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a cup-shaped stabilizer according to the present invention will be described below with reference to the drawings. FIG. 1 is a top view of a cup-shaped stabilizer showing an example of the present invention, and FIG. 2 is a side view of the cup-shaped stabilizer of the present invention on an outer side, an inner side, and a rear view. FIG. 3 is an end view taken along line AA and a line BB in FIG.
FIG. 4 is a top view showing a state in which the cup-shaped stabilizer of the present invention is stuck to a midsole. FIG. 5 is a perspective view showing a state where the cup-shaped stabilizer of the present invention is laminated and integrated with a midsole and an outsole. FIGS. 6A and 6B are schematic diagrams showing the behavior of the cup-shaped stabilizer when a load is applied. FIG. 6A shows a conventional cup-shaped stabilizer, and FIG. 6B shows the cup-shaped stabilizer of the present invention. FIGS. 7A and 7B are diagrams showing another embodiment of the cup-shaped stabilizer of the present invention, wherein FIG. 7C is a schematic view showing an embodiment corresponding to excessive rotation, and FIG. is there.

[0007] The cup-shaped stabilizer according to the present invention comprises:
It is mainly used between the upper shell and the midsole, and as shown in FIGS.
And the cup-shaped stabilizer 1 in which the heel side wall portion 5 is continuous, and the cup-shaped stabilizer is divided into the inner member 2 and the outer member 3 by the dividing groove 7 in the foot length direction,
It is constituted by combining the pair.

As shown in FIG. 1, the shape of the dividing groove 7 is set in accordance with a load moving path when a general runner uses shoes. However, it may be simple to match the load movement path, but it is necessary to divide the position, direction, and size of the load at each load point in a shape that improves the stability while efficiently relaxing them. Is good.

The interval between the dividing grooves 7 is not particularly limited, and can be appropriately selected within a range of about 1 mm to about 30 mm. However, if it is too narrow, it may be difficult to adhere to the midsole in the shoemaking process. There are problems such as difficulty in positioning, and if it is too wide, the advantage of the present invention to be described later, which will be described later, will reduce the improvement in the holdability of the foot due to the inward fall of the side wall 4. In view of these facts, if the interval between the division grooves 7 is set, a range of about 5 mm to about 15 mm is preferable. Furthermore, the interval between the divided grooves 7 is not limited to being constant, and the position, direction, and magnitude of the load at each load are
It is also possible to provide an interval with a shape that improves stability while efficiently relaxing them.

[0010] The cup-shaped stabilizer 1 of the present invention is mainly intended to prevent the heel portion from swaying due to the deformation of the sole of the shoe due to the landing impact during running and the crossing impact during jumping. The material is mainly formed of a known synthetic resin such as a nylon resin, a PVC resin, and a polyurethane resin having appropriate elasticity and rigidity.
K 7215) The D hardness is suitably about 50 to 70 degrees, and is preferably about 65 degrees. Although various molding means are used, they are generally formed by an injection method using a mold. Furthermore, for the purpose of assisting the elasticity and rigidity of the cup-shaped stabilizer 1, it can be reinforced with glass fiber, carbon fiber, metal fiber, or the like.

[0011]

4 and 5 show an embodiment of a cup-shaped stabilizer according to the present invention. Cup-shaped stabilizer 1 in which the inner member 2 and the outer member 3 are formed separately.
Is adhered to the upper surface of the midsole 10 at the bottom surface 6. Further, the outsole 1 is provided on the lower surface of the midsole 10.
2 are adhered, and a design corresponding to the purpose of use is provided. Further, the toe reinforcing member 11 and the like can be appropriately used depending on the purpose of use.

As described above, a sports shoe is formed by bonding or sewing an upper made of an appropriate material to a shoe sole obtained by laminating and integrating the outsole 12, the midsole 10, and the cup-shaped stabilizer 1 by an appropriate method. .
Although not shown, the inner member 2 and the outer member 3 are first bonded to a desired portion of the upper suspended on the last,
It is also possible to bond the outsole and the midsole to the shoe sole in which the sole is integrated.

FIG. 6 is a schematic view showing the behavior of the cup-shaped stabilizer when a load is applied. (A) shows the behavior of the conventional cup-shaped stabilizer, but when the cup-shaped stabilizer 1 receives a load from above, the cup-shaped stabilizer 1 holds the entire heel portion from the arch portion with almost no deformation,
The load received by the entire bottom portion is distributed to the midsole 10 in a planar manner. On the other hand, (b) shows the behavior of the cup-shaped stabilizer of the present invention.
Since the dividing groove 7 is provided along the excessive moving path, the inner member 2 constituting the cup-shaped stabilizer 1
Each of the armor members 3 holds the entire heel portion from the arch portion, and distributes the load received on each bottom surface portion 6 to the midsole 10. In addition, the bottom part 6 of the inner member 2 and the outer member 3 is
At the same time, the side wall portion 4 acts like a cantilever with the rising portion 9 as a fulcrum,
Further enhance the hold of the foot. In addition, the broken line in FIG. 6 is a line indicating the position of the load moving path.

Since the cup-shaped stabilizer of the present invention is divided into an inner member and an outer member, the material properties, hardness and the like of each member can be changed. Therefore, according to the running style of the user, for example,
For runners with a strong tendency to pronation, it is possible to increase the hardness of the inner member to prevent overpronation. The reverse is also possible.

FIG. 7 is a view showing another embodiment of the cup-shaped stabilizer of the present invention, and shows an embodiment corresponding to a so-called overrunning or overrunning runner.
(C) shows the embodiment corresponding to over-rotation, but the load applied from above tends to be applied to the outer shell side, and the heel flows to the outer shell side. In this case,
A cup-shaped stabilizer 1 is used in which the dividing groove 7 is shifted toward the instep side from the load moving path. By displacing the dividing groove 7 toward the inner shell side, the bottom surface portion 6 of the outer shell side member 3 is widened, and it becomes easy to receive a load that tries to escape to the outer shell side. In addition, the falling down acting on the side wall portion 4 of the outer member 3 works much more, and the effect of suppressing the heel portion from swinging outwards works strongly.

On the other hand, (d) shows an embodiment corresponding to excessive pronation, in which the load applied from above tends to be applied to the instep side, and the heel flows to the instep side. I will. In this case, a cup-shaped stabilizer 1 in which the dividing groove 7 is shifted from the load moving path to the outer shell side is used. By shifting the dividing groove 7 to the outer shell side, the bottom surface portion 6 of the inner shell member 3 becomes wider, and it becomes easier to receive a load that tries to escape to the inner shell side. In addition, the falling down acting on the side wall 4 of the inner member 3 works much more, and the function of suppressing the heel from swinging inwardly works strongly. Note that the broken line in FIG. 7 is a line indicating the position of the load moving path.

[0017]

When the cup-shaped stabilizer of the present invention is used for a sports shoe or the like, a dividing groove is provided on a bottom portion in accordance with a load moving path during exercise, so that a landing during a series of running operations can be performed. The bottom portion of the cup-shaped stabilizer effectively absorbs the load by absorbing the load, and has the effect of improving the holdability and stability against the lateral runout of the foot by falling down into the side wall portion.

Further, when the dividing groove is provided so as to be displaced to the inner or outer shell side with respect to the load moving path, so-called over-pronation or over-pronation is effectively prevented, and the foot portion is extended. It also has the effect of preventing disability.

Further, by changing the hardness of the inner member and the outer member, it is possible to set specifications according to various running styles of the user, and to change the color tone between the inner member and the outer member. Thus, an elegant product can be provided.

In the shoe-making process, in the case of the conventional cup-shaped stabilizer, when adhering to the upper, the entire inner surface of the side wall portion is connected in a cup-like shape. In the case of the cup-shaped stabilizer, since it is formed as a separate member of the inner and outer members, there is also an advantage that the lamination to the upper becomes easy and the workability is improved.

[Brief description of the drawings]

FIG. 1 is a top view of a cup-shaped stabilizer showing an example of the present invention.

FIG. 2 is a side view of the cup-shaped stabilizer of the present invention on an outer side, an inner side, and a rear view.

FIG. 3 is an end view taken along line AA and a line BB in FIG. 1;

FIG. 4 is a top view of a state in which the cup-shaped stabilizer of the present invention is stuck to a midsole.

FIG. 5 is a perspective view of a state where the cup-shaped stabilizer of the present invention is laminated and integrated with a midsole and an outsole.

6A and 6B are schematic diagrams showing the behavior of the cup-shaped stabilizer when a load is applied, wherein FIG. 6A is a conventional cup-shaped stabilizer, and FIG. 6B is a cup-shaped stabilizer of the present invention.

FIG. 7 is a view showing another embodiment of the cup-shaped stabilizer of the present invention, in which (c) is an embodiment corresponding to excessive rotation, and (d) is a schematic view illustrating an embodiment corresponding to excessive rotation. FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cup-shaped stabilizer 2 Inner shell side member 3 Outer shell side member 4 Side wall part 5 Heel side wall part 6 Bottom part 7 Dividing groove 8 Opening part 9 Standup part 10 Midsole 11 Toe reinforcing member 12 Outsole

Claims (3)

(57) [Claims] 1. A cup-shaped stabilizer having a bottom surface portion, a side wall portion, and a heel portion side wall portion which are continuous with each other, wherein the cup-shaped stabilizer is divided into an inner member and an outer member by dividing grooves in a leg length direction. A synthetic resin cup-shaped stabilizer, which is divided into a pair. 2. The synthetic resin cup-shaped stabilizer according to claim 1, wherein the shape of the dividing groove is provided in a shape corresponding to a load moving path when the shoe is used. 3. The synthetic resin cup-shaped stabilizer according to claim 1, wherein the dividing groove is provided on the inner side or the outer side of the load moving path when the shoe is used.