JPH0141285Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[Industrial Application Field] This invention relates to the sole of athletic shoes. [Prior art and its problems] Conventionally, a shoe sole made of an elastic material is provided with a number of cavities inside it to make the sole easily deformable.
There is an attempt to reduce the impact applied to the sole of the shoe as much as possible (Utility Model Publication No. 58-29083). Incidentally, the direction of the impact applied to the soles of athletic shoes has characteristics depending on the type of sport. For example, when running a marathon or jogging, impacts are likely to be applied diagonally forward, particularly to the heel area, and impacts are likely to be applied in the left-right direction when playing tennis or table tennis, which involve a lot of side-to-side movement. Therefore, the sole of an athletic shoe must be able to sufficiently cushion the impact depending on the characteristics of the impact direction of each sport. However, conventional shoe soles, including soles with the above structure, only consider cushioning in the vertical direction, and do not take into account shocks from the left and right and front and rear directions. There was a problem that there was not enough buffering. Therefore, this invention aims to buffer the impact as much as possible even in sports that have characteristics in the impact direction by providing a sole that is easily deformed in a predetermined direction such as left-right or front-back directions. . [Means for solving the problem] In order to solve the above problem, this invention
A large number of cavities are formed inside an elastic bottom material, and columnar parts formed between the cavities are each inclined in a predetermined direction. [Function] In the sole of the above structure, since the columnar portions formed between the hollow portions are inclined in a predetermined direction, the columnar portions are easily deformed in the direction of inclination, and due to this directional deformation. Therefore, it is possible to absorb impact from a predetermined direction. [Example] Hereinafter, an example of this invention will be described based on the accompanying drawings. The sole 1 is made of an elastic material such as natural rubber, synthetic rubber, polyurethane, or ethylene vinyl acetate. A large number of cavities 2 are formed inside the sole 1 to facilitate deformation, and by tilting columnar parts 3 formed between the cavities 2 in a predetermined direction, a predetermined shape can be formed. This makes it easy to deform in the direction, thereby imparting directionality to the deformation direction of the sole 1. The shape of the hollow portion 2, that is, the arrangement, thickness, or inclination angle of the columnar portions 3, depends on the material of the sole 1 and the sole 1.
This is determined by taking into consideration from which direction and how much impact will be applied. For example, in the case of shoes used for marathon running or jogging, the impact is applied diagonally to the heel of the sole when the shoe lands, so a hollow part 2 is provided in the heel of the sole 1 as shown in Figure 1. By inclining the columnar part 3 formed between the hollow parts 2 so that its central part is bent forward,
When an impact is applied from an oblique direction upon landing, the hollow portion 2 and columnar portion 3 deform from the state shown in FIG. 3 as shown in FIGS. 4 and 5, and the impact is absorbed by this deformation. In addition, in the case of shoes used for short-distance running, when landing, impact is likely to be applied diagonally to the front part of the sole, so as shown in Figure 6, spikes on the sole 1 By providing a hollow part 2 in the attachment part and further inclining the columnar part 3 formed between the hollow parts 2 so that the central part thereof bends forward, the hollow part 2 and the columnar part 3 can be easily bent when landing. It is designed to easily deform diagonally forward and absorb shock. In addition, in the case of short-distance running, a large force is applied backward to the front part of the sole 1 when running forward, but at this time, the hollow part 2 and the columnar part 3 are deformed as shown in FIG. Since the hollow portion 2 is in a collapsed state, it is difficult to deform in the rearward direction (in the direction of arrow B). Therefore, it has a buffering effect against the impact force F upon landing, while the kick force
F′ is transmitted as is, so that the kicking force does not escape. In addition, in FIGS. 4 and 5, F and F' indicate impact force.

[Table] Unit Kg
Looking at the above results, for sample B, the value hardly changes even if the impact direction is reversed, but for sample A, the value changes when the impact direction is reversed; It can be seen that when the columnar portion 3 is inclined as in the invention, directionality is added to the impact mitigation effect. The data for samples A and B are as follows. Material: Ethylene vinyl acetate, hardness 60° Dimensions: a (5mm), b (10mm), c (20mm), d
(6 mm), e (10 mm) [Effects] This invention is as described above, so it is possible to add directionality to the deformation of the sole of athletic shoes,
This has the effect that even in sports that have characteristics in the direction of impact, the impact can be sufficiently buffered. Further, in this invention, since a hollow portion is formed inside the bottom material, no unevenness is formed on the surface of the bottom material. Therefore, when the upper or insole is attached to the surface of the sole material, the adhesive area is large and the sole material is less likely to peel off.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the invention, FIG. 2 is a partially cutaway rear view of FIG. 1, and FIGS. 3 to 5 are schematic diagrams showing deformed states of the sole, 6 to 8 are side views showing other embodiments of this invention, FIGS. 9 and 10 are views showing other examples of shoe soles, and FIG. 11 is a side view of sample A. FIG. 12 is a side view of sample B. 1... sole, 2... hollow part, 3... columnar part.

Claims (1)

[Claims for Utility Model Registration] (1) Athletic shoes formed by forming a large number of hollow parts inside an elastic sole material, and having columnar parts formed between the hollow parts each inclined in a predetermined direction. sole of the shoe. (2) The sole of an athletic shoe according to claim 1, wherein the hollow portion and columnar portion are provided on the entire surface of the sole. (3) The sole of an athletic shoe according to claim 1, wherein the hollow portion and columnar portion are provided only in the heel portion of the sole. (4) The sole of an athletic shoe according to claim 1, wherein the hollow portion and columnar portion are provided only in the front portion of the sole. (5) Claims 1 to 4 of the utility model registration claim characterized in that the columnar portion is bent midway.
The sole of the athletic shoe described in any of the paragraphs.