JP4957996B2 - Footwear manufacturing method, footwear and footwear - Google Patents

Description

  The present invention relates to a footwear table and footwear.

  The correct center of gravity movement of the soles during walking, which has been revealed by recent studies, has been proposed. This is also called the rolling motion of the foot, and the walking cycle that follows the trajectory α in the order of landing on the heel-center outer side of the sole-little toe base-kicking with the thumb ball-thumb is ideal (in order) FIG. 1).

  On the other hand, people with O-legs, who are said to occupy most of the Japanese, tend to move along a trajectory β whose center of gravity is biased toward the little finger after landing on the heel when walking (Fig. 2). If such a movement of the center of gravity is left unnecessarily, an excessive burden is imposed on the knee, and as a result, knee osteoarthritis and the like are caused.

  Therefore, in order to acquire the correct center of gravity movement of the sole, walking instruction by an expert is performed, and the existence of various insoles is known in order to prevent the adverse effects caused by not realizing this correct center of gravity movement. .

Furthermore, a technique related to footwear in which a plurality of groups of linear grooves are provided on the surface or bottom surface of a footwear table is known (see Patent Document 1). When walking, the opening edges of the plurality of grooves sequentially open and close toward the front from the buttocks, thereby curving the footwear table and generating a twisting action.
Japanese Patent No. 3800249

  In the guidance of walking by experts, only those who take an active action of consulting with experts with a sense of problem in their way of walking will benefit from it. Moreover, not all persons who have received the walking instruction necessarily learn correct center-of-gravity movement.

  In addition, many insoles are mainly intended to absorb shocks during walking, and are not intended to guide the feet to achieve correct center of gravity movement.

  According to the technique described in Patent Document 1, pebbles and the like are sandwiched between a plurality of grooves provided on the bottom surface. Therefore, in order to maintain the effect of the technique, a regular bottom surface is used. Maintenance is required.

  In addition, since the change in the groove pattern of the footwear base also involves the change of the mold for molding the footwear base, in order to provide a footwear base with variations according to the user's individual taste and how to walk There is room for improvement in that the production costs a considerable amount.

In order to solve the above problems, the present invention has the following structure. That is, footwear base manufacturing method according to claim 1, footwear, on substantially the entire surface of the footwear base surface side or bottom side made of an elastic material, and the material of the elastic member, as compared with the fulfillment thereof board material hard bending a rod-shaped tip made of material of the footwear base, that the hardness of the material suitable for the twisting degree, the selected elastic body of the rod-shaped chip made from the corresponding hard material to the material and a plurality implantable Features.
According to a second aspect of the present invention, there is provided the footwear manufacturing method according to the first aspect, wherein the hardness of the material of the elastic body and / or the rod-shaped tip is changed to increase the difference in hardness between the two materials. The degree of curvature and torsion of the footwear table can be adjusted by adjusting or reducing the size.

The footwear table according to claim 3 , wherein the bar-shaped tip is embedded in the longitudinal direction of the footwear table from the heel portion to the middle foot portion and the forefoot portion, and is disposed in the heel portion and the forefoot portion. chip embedded inclined from the tibial bone side distal fibula side tip of the rod-shaped tip with respect to the axis to the forefoot side, rod-like chips arranged in the midfoot, in order from the heel side, longitudinal direction substantially perpendicular to the axis, footwear stand shin bone side tip according to any one of claims 1 to 2, characterized in that embedded into the direction inclined from the fibula side distal to the forefoot side It is manufactured by a manufacturing method .

According to a fourth aspect of the present invention, there is provided the footwear table according to the third aspect of the present invention, wherein, when walking using the footwear provided with the footwear table, an adjacent bar shape from the buttocks to the forefoot portion of the footwear table. The elastic body portion of the footwear between the chips is sequentially curved to generate a twisting motion.

Footwear according to claim 5, characterized in that using the footwear base according to any one of claims 3 to 4.

  If the footwear using the footwear table according to the present invention is used, the elastic body portion of the footwear table between the plurality of bar-shaped chips embedded in the footwear table will bend sequentially and generate a twisting motion, so It is possible to guide the force applied to the part to move the center of gravity correctly.

  As a result, it is possible to realize a correct center of gravity movement in natural and daily walking without seeking expert guidance. Further, since no grooves are provided, pebbles or the like are not caught, and regular maintenance of the footwear is unnecessary.

  Furthermore, by changing the hardness of the bar-shaped chip, it is possible to provide a footwear table and footwear that are rich in variations according to the user's personal taste and how to walk.

  In this case, since there is no need to change the design of the footwear itself, it is possible to provide the above-mentioned variation footwear without requiring a separate mold, which is a great economic advantage for the manufacturer. .

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an explanatory view showing the correct center of gravity movement of the sole, FIG. 2 is an explanatory view showing an incorrect center of gravity movement of the sole, FIG. 3 is a bottom view of the footwear table for the left foot, and FIG. FIG. 5 is a side view of the footwear table and conceptually shows the arrangement of the chips. FIG. 6 is an explanatory view showing a part of the walking cycle, and the heel is grounded. FIG. 7 is a diagram illustrating a state from the tip of the toe to the ground, FIG. 7 is an explanatory diagram illustrating a relationship between the walking cycle and the center of gravity movement, and FIG. 8 is an explanatory diagram illustrating an embedding angle between the rod-shaped chips.

  In the figure, 1 is a footwear table, 2 is a rod-shaped chip, 3 is a buried hole, 4 is a back, 5 is a bottom, and 11 is an elastic body portion which is a material of the footwear table.

  The footwear base 1 is made of an elastic body such as natural or synthetic rubber or foaming resin, and is provided with an embedding hole 3 for embedding the rod-shaped chip 2.

  The bar-shaped chip 2 is made of synthetic resin, wood, metal or the like, and is made of a material harder than the material of the footwear 1.

Each rod-shaped chip 2 is embedded in an embedded hole 3 provided in advance via an adhesive, and the arrangement thereof is as shown in FIG. That is, the rod-shaped chip 2 is arranged obliquely or substantially orthogonally to the longitudinal axis a. Specifically, the rod-shaped chip 2 disposed in the buttocks region X and the forefoot region Z has a longitudinal axis a. It is embedded inclined fibula side tip P of the chip 2 from the tibial bone side tip Q to the forefoot side with respect to. On the other hand, the rod-like chip 2 arranged in the midfoot region Y is embedded in the order from the heel side, a direction substantially perpendicular to the longitudinal axis, and the tibial bone side tip in a direction inclined to the forefoot side of the fibula side tip Is done.

  The foot table for the right foot has the structure of the left foot shoe table 1 and the left and right objects.

  As shown in FIG. 5 (a), a rod-like chip 2 is embedded on the bottom side of the footwear table 1, a bottom 5 is provided if necessary, and an upper 4 is attached to make the footwear. On the other hand, as shown in FIG. 5 (b), a structure in which a bar-shaped chip 2 is embedded on the surface side of the footwear 1 may be used.

  The footwear referred to in the present invention is not only slippers as shown in FIG. 5, but also various footwear such as sandals, sandals, sports shoes such as sneakers using the footwear 1, commuting shoes, boots, boots, and underground socks. Of course it can be used.

  Next, normal sole rolling exercise will be described with reference to FIGS.

  As shown in FIG. 6, in general, the walking cycle is (1) “ground contact period of the heel” — (2) “first half of the ground contact period of the sole” — (3) “second half of the ground contact period of the sole” — (4) “ It can be considered that the kicking period "-(5)" toe take-off period "is a repetition of one set on the left and right.

  This walking cycle is made to correspond to sole rolling, and as shown in FIG. 7, the center of gravity sequentially moves to the (1)-(2)-(3)-(4)-(5) portion and follows the trajectory α. If you can, it is normal foot rolling exercise.

  Next, a mechanism in which the footwear 1 of the present invention is bent along the track α and warps and twists will be described with reference to FIGS. 7 and 8.

From the “contacting period of the heel” (1) to “the first half of the contact period of the sole” (2), as the center of gravity gradually increases from the bar-shaped chips 201 to 204 in sequence, The elastic body 11 of the footwear table 1 between 203, 203 and 204 is sequentially bent in parallel with the rod-shaped chip and warps. At this time, since the rod-shaped chip 2 is buried inclined from the tibial bone side tip Q to the forefoot side fibula side tip P of the rod-shaped chip 2 with respect to the longitudinal axis a, in this period the , the center of gravity is the be induced to nature and some shin bone side.

From the “first half of the ground contact period of the sole” (2) to the “second half of the ground contact period of the sole” (3), as the center of gravity gradually increases from the rod-shaped tip 205 to 209, the rod-shaped tips 205 and 206, The elastic body 11 of the footwear 1 between 206 and 207, 207 and 208, 208 and 209 is sequentially bent in parallel with the bar-shaped chip and warps. At this time, toward a rod-shaped tip 206 209, shin bone side tip from a direction substantially perpendicular to the longitudinal axis are embedded in the forward and in the direction inclined to the forefoot side of the fibula side tip, rod-shaped chip is roughly formed embedded direction b, unlike the buried direction a to form the rod-shaped chips 201 205 approximately, by the angle difference d1 formed by both, the center of gravity that has been induced into the tibial bone side, the center of the back foot is fibula side The trajectory is corrected toward the outer side—the base side of the little finger (direction a), and the footwear 1 is twisted.

From the “second half of the ground contact period of the sole” (3) to the “kicking-out period” (4), the barycenters 210 and 211, 211 and 212 are applied as the center of gravity gradually increases from the bar-shaped chips 210 to 214. , 212 and 213, 213 and 214, the elastic body 11 of the footwear 1 is sequentially bent in parallel with the rod-shaped chip and warps. In this case, rod-shaped chip 2 is buried by tilting the fibula side tip P of the chip 2 from the tibial bone side tip Q to the forefoot side with respect to the longitudinal axis a, embedded direction rod-shaped tip is roughly formed Unlike the embedding direction A formed roughly by the rod-shaped tips 206 to 209, the center of gravity that has been guided to the rib side (center outer side of the sole-the base of the little finger) due to the difference in angle d2 between the two directions, and trajectory correction to shin bone side (mother趾球near side) (direction c), and to cause twist again footwear table 1. Finally, the “toe takeoff period” (5) is reached, and the one leg walking cycle is completed.

  In this way, the bar-shaped chip 2 embedded in the footwear 1 is between the heel region X and the middle foot region Y and between the middle foot region Y and the front foot region Z with respect to the longitudinal axis a. By varying the embedment angle, the footwear table 1 is twisted with the movement of the center of gravity from the buttocks region X to the middle foot region Y and from the middle foot region Y to the forefoot region Z. A walking cycle along the trajectory α that induces the sole rolling motion will be realized. The embedding angle in each region may be constant, or the embedding angle of each bar-shaped tip may be adjusted little by little while taking into account the angular difference with the adjacent region along the trajectory α.

  As shown in FIG. 8, an angle d1 formed by an average burying direction of the rod-shaped chip embedded in the buttock region X and an average burying direction of the rod-shaped chip embedded in the midfoot region Y, and the midfoot portion By adjusting the angle d2 between the average embedding direction of the bar-shaped chips embedded in the region Y and the average embedding direction of the bar-shaped chips embedded in the forefoot region Z, the degree of twist of the footwear table can be increased. Accordingly, it is possible to provide a footwear table with abundant variations and footwear using the footwear table in accordance with an expected user's request.

  Further, as shown in FIGS. 9 to 11, for example, as shown in FIGS. 9 to 11, the bar-shaped chip is embedded in various patterns including a plurality of linear grooves provided on the bottom surface of each footwear table 30, 40, 50. Rod-shaped chips corresponding to the groove groups 31, 32, 33, 41, 42, 43 and 51, 52, 53 may be embedded, taking into account the user's body shape, weight, foot size, etc. The present invention can be applied to various embedding patterns and is not limited to the above embodiment.

  The technical idea of the present invention can be applied to socks and socks as well as the above-described footwear. By changing the hardness of the rod-shaped tip material to increase or decrease the difference between the hardness of the elastic body that is the footwear material, the hardness of the elastic material that is the footwear material is also reduced. By changing to increase or decrease the difference between the hardness of the bar-shaped chip material, and further changing the elastic material that is the material of the bar-shaped chip material and the footwear table, the difference between the two materials is increased. By adjusting the degree of curvature and twisting of the footwear table, it is possible to control the correction force of weight shift to the sole by the footwear table or footwear using the footwear table. It becomes. Thereby, it can respond to the request | requirement of a wider consumer group including the person who has a disease in a knee.

It is explanatory drawing which shows correct center-of-gravity movement. It is explanatory drawing which shows incorrect gravity center movement. It is a bottom view of a footwear table. It is explanatory drawing which showed a mode that a rod-shaped chip | tip was embed | buried. It is a side view of a footwear table. It is explanatory drawing which shows a part of walking cycle. It is explanatory drawing which showed the relationship between a walk cycle and a gravity center movement. It is explanatory drawing which showed the embedding angle between rod-shaped chips. It is a bottom view of the footwear table which shows the example of formation of the rod-shaped chip embedding groove in other examples. It is a bottom view of the footwear table which shows the example of formation of the rod-shaped chip embedding groove in other examples. It is a bottom view of the footwear table which shows the example of formation of the rod-shaped chip embedding groove in other examples.

Explanation of symbols

1 Footwear stand 11 elastic body 2 rod-shaped chip 3 burying holes 4 instep five bottom a longitudinal axis P fibula side tip Q tibial bone side tip X heel region Y midfoot region Z forefoot region alpha, beta track

Claims (5)

On the entire surface of the footwear base made of elastic body,
And material of the elastic body, and a rod-shaped tip made of a hard material in comparison with the fulfillment thereof stand Material
A material with hardness suitable for the curvature and twist of the footwear table,
A footwear table manufacturing method capable of embedding a plurality of rod-shaped chips made of a hard material corresponding to the selected material of the elastic body . Change the hardness of the elastic body and / or the material of the rod-shaped tip,
By increasing or decreasing the difference in hardness between both materials,
The method for manufacturing a footwear table according to claim 1, wherein the degree of curvature and twist of the footwear table is adjustable . The rod-shaped tip is embedded from the heel part to the middle foot part, the front foot part, crossing the longitudinal axis of the footwear table,
The rod-shaped tip placed on the buttocks and forefoot,
The fibula side tip of the rod-shaped chip embedded inclined from the tibial bone side distal to the forefoot side with respect to said axis,
The rod-shaped tip placed on the middle foot part, in order from the buttocks side,
Substantially perpendicular to the longitudinal axis, the tibial bone side tip according to any one of claims 1 to 2, characterized in that embedded into the direction inclined from the fibula side distal to the forefoot side Footwear made by the footwear manufacturing method . When walking using the footwear provided with the footwear table, from the buttocks of the footwear table toward the forefoot,
The elastic body portion of the footwear between adjacent bar-shaped chips is sequentially curved,
The footwear table according to claim 3 , wherein a twisting motion is generated. Footwear characterized in that using the footwear base according to any one of claims 3 to 4.

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