JP2012170746A - Sole and footwear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To impose loads on muscles of both legs with good balance to efficiently enhance exercise effect, even when enhancing the exercise effect in time of walking or running.SOLUTION: This sole 2 includes a rising part 2S on the tiptoe side of a ground contact face. When setting a distance from the heel end S1 to the tiptoe end S2 as L and setting a distance from the heel end S1 to a base point position A of the rising part 2S as La, La/L is set to be 0.55-0.61 (0.58±0.03). Thereby, the base point position A of the rising part 2S is positioned on the rear side of a position corresponding to a hallucal area.

Description

  The present invention relates to a shoe sole and footwear including the shoe sole.

  For footwear such as walking shoes, sports shoes, training shoes, business shoes, sports sandals, etc., especially footwear suitable for walking and running to promote user health, stand on the toe side of the shoe sole made of synthetic resin. What provided the raising part is known. For example, in Patent Document 1 below, the toe-side grounding surface corresponds to the foot of the baseball with respect to the extension line of the heel-side grounding surface in order to make the leg stretching and toe kicking motion smooth. A sports shoe is shown that is inclined about 23 ° upward from the stepping portion and has a curved sole corresponding to the upper surface of the sole.

JP 2002-65310 A

  In the above-described conventional shoe sole, the rise of the toe side grounding surface is based on the stepping portion corresponding to the base ball portion of the foot. The purpose of this is to match the shape of the sole to the bent shape of the sole, and the sole is bent at the joint at the base of the toe. The rising base point of the ground is made to correspond to the stepped portion of the sole as described above. Statistically, it is known that the position of the base ball (the base of the thumb) is about 68% of the total length of the foot, and the rising base point of the toe side ground contact surface of the shoe sole is The conventional shoe sole is formed in accordance with this position.

  In addition, in the above-described conventional technique in which a rising portion is provided on the toe side grounding surface, when the user walks or runs, the toe side grounding surface is attached to the ground with the rear foot, and the foot that steps forward is used. Rather, the side is designed to be actively grounded. In the prior art, when the heel of the foot that is behind is raised, the toe side grounding surface kicks the ground and sends the foot forward, thereby smoothing walking and running.

  However, with this conventional technology, the movement force (locomotion) of the user during walking and running must be relied solely on the kicking of the foot on the back side, and a large movement to enhance the exercise effect during walking and running When trying to gain strength, there was a problem that a large load was applied to the muscles of one leg (inflated shin). In addition, in the prior art, when the foot on the front side is turned back, the weight placed on the heel side is moved to the toe side, the load on the ankle joint and heel joint is easily loaded, and the ankle joint and heel are likely to be damaged. There was a problem.

  This invention makes it an example of a subject to cope with such a problem. In other words, when increasing the exercise effect during walking or running, the muscles of both legs are loaded in a well-balanced manner, and the exercise effect can be increased efficiently. That it can reduce the load on the ankles and heels even during high load walking and running such as fast walking, etc. These are the objects of the present invention.

  In order to achieve such an object, a shoe sole according to the present invention and footwear provided with the shoe sole have at least the following configurations.

  A shoe sole provided with a rising portion on the toe side of the contact surface, wherein the distance from the heel end of the shoe sole to the tip of the nail is L, and the distance from the heel end to the base point position of the rising portion is La In some cases, La / L is set to 0.55 to 0.61 (0.58 ± 0.03).

  A shoe sole provided with a rising portion on a toe side of a ground contact surface, wherein a base point position of the rising portion is provided on a rear side from a position corresponding to a base ball portion.

  By having such a feature, the shoe sole of the present invention and the footwear equipped with the shoe sole correspond to the base point position of the rising portion formed on the toe side of the ground contact surface corresponding to the base ball portion (stepping portion). Since the foot is stepped forward when walking or running, the toe side touches the ground immediately after the heel side touches down, and a moving force using the inclination of the rising part is generated. It will be. As a result, not only the kicking of the foot on the back side but also the moving force is generated by the effective return of the foot on the front side, so the muscles of both legs are also used when enhancing the exercise effect during walking and running The load is balanced and the exercise effect can be enhanced efficiently. In addition, the stepping of the foot on the front side is assisted by the center of gravity movement using the inclination of the rising part, so it is easy to obtain moving force, and the load on the ankle and heel is also high during walking with high load such as walking fast and running Can be reduced.

It is explanatory drawing which showed the shoe sole and footwear which concern on one Embodiment of this invention. The figure (a) has shown the side view, and the figure (b) has shown the rear view. It is explanatory drawing which showed the function of the shoe sole or footwear which concerns on embodiment of this invention. The figure (a) has shown the motion of the leg which becomes the front side at the time of walking or running, and the figure (b) has shown the movement of the foot which becomes the back side at the time of walking or running.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing a shoe sole and footwear according to an embodiment of the present invention. The figure (a) has shown the side view, and the figure (b) has shown the rear view. The footwear 1 includes a shoe sole (sole) 2 and an upper 3. The sole 2 can be formed of a synthetic resin molded body or leather, and the upper 3 is made of synthetic resin, depending on the form of footwear such as walking shoes, sports shoes, training shoes, business shoes, sports sandals, etc. It can be formed of cloth, leather or the like.

  The shoe sole 2 has a grounding surface (a toe side grounding surface 2a and a heel side grounding surface 2b). In the illustrated example, the toe side grounding surface 2a and the heel side grounding surface 2b are separated from each other. However, the present invention is not limited to this, and the toe side grounding surface 2a and the heel side grounding surface 2b are continuously connected. Also good. The shoe sole 2 is provided with a rising portion 2S on the toe side. The rising portion 2S is a portion rising upward from a part of the toe side grounding surface 2a, and the entire rising portion 2S may be formed of a curved surface or a flat surface.

  In the embodiment of the present invention, the base point position A of the rising portion 2S is in a state where the heel side grounding surface 2b of the shoe sole 2 is grounded on the reference plane H, and the toe side grounding surface 2a of the shoe sole 2 is It is defined as the position to leave. The position here is defined by a line parallel to the parallel tangent of the heel end S1 and the tangent of the claw tip S2 that defines the overall length L of the shoe sole.

  And the shoe sole 2 which concerns on embodiment of this invention makes the distance (full length of the shoe sole 2) from the heel end S1 of the shoe sole 2 to the nail | tip nail | tip S2, L, and the base point position A of the standing part 2S from the heel end S1. La / L is 0.55 to 0.61 (0.58 ± 0.03), where La is the distance up to. La / L = 0.58 ± 0.03 is the most preferable range, and a similar function described later can be obtained even in a slightly wider range of La / L = 0.58 ± 0.05. .

  One feature of the shoe sole 2 according to the embodiment of the present invention is that the base position A of the rising portion 2S is provided on the rear side from the position corresponding to the baseball portion of the foot. In the conventional shoe sole, the distance Le from the heel end to the base position A 'of the rising portion is about 0.68L, and the vicinity of the baseball portion of the foot is the base position A' of the rising portion. In contrast, in the shoe sole 2 according to the embodiment of the present invention, the range of the rising portion 2S with respect to the entire ground contact surface of the shoe sole 2 is larger than that of the conventional shoe sole.

  The above-described height H1 from the reference plane H to the claw tip S2 can be arbitrarily set depending on the degree of the auxiliary effect of the moving force described later. In order to effectively obtain the auxiliary effect of the moving force, the height H1 is preferably set to 20 to 30 mm.

  Moreover, the shoe sole 2 which concerns on embodiment of this invention may provide the curved part 2c in the heel side grounding surface 2b as needed. By providing the curved portion 2c on the heel end S1 side, smooth grounding is possible when the shoe sole 2 is grounded from the heel end S1 during walking or running, and it moves from the heel side grounding surface 2b to the toe side grounding surface 2a. It is possible to smoothly perform the movement of the foot to be performed. In order to obtain an effective foot movement, assuming that the distance from the heel end S1 to the bending base point position B of the bending portion 2c is Lb, Lb / L is 0.07 to 0.13 (0.10 ± 0. 03) is preferable. Further, by making the curved base point position B to the base point position A of the rising portion 2S substantially flat, it is possible to appropriately set the timing of transition from the flat ground surface to the rising portion 2S, and to assist the moving force as described later. Can be arbitrarily set.

  FIG. 2 is an explanatory diagram showing functions of a shoe sole or footwear according to an embodiment of the present invention. The figure (a) has shown the motion of the leg which becomes the front side at the time of walking or running, and the figure (b) has shown the movement of the foot which becomes the back side at the time of walking or running. The sole 2 and the footwear 1 according to the embodiment of the present invention are particularly characterized by the movement of the foot on the front side during walking or running. In the shoe sole 2 according to the embodiment of the present invention, the base point position A of the rising portion 2S is shifted to the heel side, so that the heel side ground contact surface 2b that becomes the front side when walking or running is grounded to the ground G. Thereafter, the rising portion 2S comes into contact with the ground G by a slight forward center of gravity movement (see the one-dot broken line in FIG. 2A). At this time, as indicated by an arrow in FIG. 2 (a), as the rising portion 2S of the front foot comes in contact with the ground G, the front foot heel is separated from the ground G. The position of the center of gravity of a person who is walking or running can be easily shifted to the front side by the movement of the foot, thereby obtaining an auxiliary effect of the moving force.

  Also, the foot movement as shown by the arrow in FIG. 2 (a) results in a stepping action of the front foot. This stepping action moves the center of gravity using the inclination of the rising portion 2S. Therefore, it becomes easy to obtain a moving force. The auxiliary function of the stepping back operation can obtain a larger effect as the inclination angle of the rising portion 2S is larger, but this effect can also be obtained because the base point position A of the rising portion 2S is shifted to the heel side. It is.

  And, as shown by the arrow in FIG. 2 (b), the movement of the foot on the back side during walking or running is caused by the toe-side ground contact surface 2a kicking the ground when the back of the foot on the back side rises. The movement power of walking or running is obtained by sending the foot forward. At this time, the movement of the arrow shown in FIG. 2A and the movement of the arrow shown in FIG. 2B, that is, the stepping action of the foot on the front side and the action of kicking the ground of the foot on the rear side are performed almost simultaneously. The load on the muscles of both feet is applied in a balanced manner. As a result, even when the exercise effect is enhanced by running fast or at a higher speed, the muscles of both legs are loaded in a balanced manner, and the exercise effect can be enhanced efficiently.

  In addition, the stepping action of the foot on the front side is assisted by the inclination of the rising portion 2S that shifts the base point position A to the heel side, so the load on the ankle and heel is reduced even during high-load walking and running such as walking fast It is possible to suppress ankle joint and heel disorders caused by overload during walking and running.

  As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to these embodiments, and the design can be changed without departing from the scope of the present invention. Is included in the present invention. The shoe sole 2 or footwear 1 of the present invention can obtain a higher effect with walking shoes, running shoes, sports sandals and the like, but is not particularly limited thereto.

1: Footwear, 2: Sole, 3: Upper
2a: toe side ground surface, 2b: heel side ground surface, 2c: curved portion,
2S: rising part,
S1: heel end, S2: nail tip,
A: Base position of the rising portion, A ′: Base position of the conventional rising position of the shoe sole,
B: Bending base position of the bending portion

Claims (6)

A shoe sole provided with a rising portion on the toe side of the ground surface,
When the distance from the heel end of the shoe sole to the tip of the nail is L and the distance from the heel end to the base position of the rising portion is La, La / L is 0.55 to 0.61 (0. 58 ± 0.03). A shoe sole provided with a rising portion on the toe side of the ground surface,
A shoe sole characterized in that a base point position of the rising portion is provided on a rear side from a position corresponding to a baseball ball portion.   The base position of the rising portion is a position where the ground contact surface on the toe side of the shoe sole is separated from the reference plane in a state where the ground contact surface on the heel side of the shoe sole is grounded on the reference plane. The shoe sole according to claim 1 or 2.   The shoe sole according to any one of claims 1 to 3, wherein a height from the reference plane to the tip of the nail is 20 to 30 mm. When a curved portion is provided on the heel end side of the ground contact surface, and the distance from the heel end to the bending base position of the curved portion is Lb, Lb / L is set to 0.07 to 0.13,
The shoe sole according to claim 1, wherein the curved base point position to the base point position of the rising portion is substantially flat.   The footwear provided with the shoe sole and upper described in any one of Claims 1-5.

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