JP2011255143A - Sole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sole having a structure that can enhance health promotion and diet effect in walking or jogging by rocking back and forth, necessitating a sense of balance, and increasing momentum.SOLUTION: In a part corresponding to the arch of a balance support member 3 which is made of a material having a hardness higher than that of an out sole body 2, an arch support member 4 having a nearly hemispherical cross section is protruded toward the sole of the balance support member 3. Then the balance support member is packed in the out sole body 2 from the rear end 5 of the toe part to the place 6 corresponding to the heel part of the out sole body 2, making it joined and integrated with the out sole body 2. The bottom face of the out sole 2 is designed to have a curved face, in which an angle formed by the toe end contact point A where the out sole 2 is in contact with the ground and by the rear face 10 of the toe tip end is gradually raised in the range of 6-30°, and in which an angle formed by the heel end contact point B where the out sole 2 is in contact with the ground and by the rear face 11 of the heel rear end is gradually raised in the range of 6-21°.

Description

The present invention relates to a shoe sole. In particular, the present invention relates to the angle formed by the line connecting the shoe ground contact point and the tip of the toe and the angle formed by the wire connecting the shoe ground contact point and the rear end of the heel. A shoe characterized by having a larger size than those on the bottom, a rocking (rolling) motion in the walking direction, an internal structure that supports an arch-corresponding portion, and an internal structure that relieves or absorbs an impact on the heel-corresponding portion Regarding the bottom.
The shoe sole of the present invention belongs to the category of shoes conventionally referred to as “balance shoes” or “Masai shoes” in the shoe industry.

  The shoe sole of the present invention is also applied to so-called “shoes” having a scab that covers the entire foot, and so-called “sandals” that do not have a scab that covers the entire foot.

  In recent years, walking or jogging has been recommended as an exercise that can be easily performed in daily life for the purpose of dieting as a measure to promote health and lifestyle-related diseases as the age increases. Since walking or jogging can be adjusted according to physical condition or physical strength, it is ideal in that it can be performed regardless of age, gender, occupation, etc.

  By the way, when walking, jogging and running are viewed from the viewpoint of heart rate, there are naturally individual differences and sensory values, but walking is about 100 to 120, jogging is about 120 to 130, and running is about 130 to 130. It is said to be 150. That is, neither walking nor jogging is so much in terms of momentum, so the burden on the body is small. In walking and jogging, the muscles used are very limited. Therefore, it is ideal if the amount of exercise is increased by using muscles that are not normally used in walking or jogging, thereby improving health and improving the diet effect. Conventionally, several shoes that have such an effect have been proposed.

  Patent Document 1 discloses a shoe referred to as “active rolling walking tool”. This comprises a shoe sole comprising a midsole 10, an undersole 12 and a sole bottom 13, and the undersole 12 is formed in an arched or arcuate shape projecting downward on the side facing the sole sole 13 at the end, The structure positively gives a roll motion and makes the trampoline effect effective during the roll. Its cross-sectional structure, at first glance, looks like a prickly clog or a single-toothed high tooth, is extremely unstable and even dangerous if not mastered. Furthermore, the “active rolling walking tool” described in Patent Document 1 has uniform physical properties such as hardness of the midsole 10, and appropriate physical properties such as hardness at locations corresponding to the metatarsal bone and the heel. Since the load is not changed, the load applied to the sole is the same, and considerable fatigue accumulates when walking for a long time.

  Patent Document 2 discloses “a midsole for professional footwear for Masai walking”. In this case, a spring shank in which a front shank and a rear shank are joined by one or a plurality of springs is embedded in a midsole. The spring shank divides the foot-shaped shank into a front shank and a rear shank, and embeds a spring ring at the rear end (front side) of the front shank, and embeds a spring ring at the front end (toe side) of the rear shank. A structure in which a metal spring is coated with a resin selected from a polyvinyl chloride resin, a polyurethane resin and a polyester resin and connected to each other via the spring ring. is there. That is, because the midsole is divided into two parts and they are movably connected by a plurality of springs, there is a disadvantage that they will not function if the springs are disengaged from either the front shank or the rear shank. is there.

  Patent Document 3 discloses “a shoe sole and a shoe including the shoe sole”. This is because the arch support part 110, the toe support part 120, and the heel support part 130 are separately formed on the sole, and the toe support part 120 and the heel support part 130 are bonded to the lower side of the arch support part 110. The structure is extremely complicated and increases the manufacturing cost. The arch support part 110 has a lower surface 111 inclined downward from the front end 112 to the central part 113 (inclined lower surface 111a) and an upward inclination from the central part 113 to the rear end 114. A thick portion is formed around the central portion 113 (inclined lower surface 111b). The lowermost surface 111c of the central portion 113 is formed to be substantially flat. For this reason, a wearer's weight is supported by the lowermost surface 111c of the center part 113 (paragraph [0033] of patent document 3). Referring to this description and the drawings, “the shoe sole and the shoe including the shoe sole” described in Patent Document 3 supports the entire weight by the lowermost surface 111c of the central portion 113 having a very small contact area. In addition, it has an extremely unstable structure like a “single-tooth high clog” and is not suitable for infants, pregnant women, elderly people, and the like.

Special table 2003-508098 gazette JP 2009-142537 A JP 2009-153990 A

  The first problem to be solved by the invention is to make the ground contact area of the shoe sole smaller than that of the conventional one and to make it an unstable structure, thereby requiring a sense of balance and using muscles that are not normally used. An object of the present invention is to provide a shoe sole having a structure capable of improving health and improving a diet effect even in daily walking, walking or jogging, which has a smaller amount of exercise than running by increasing the amount of exercise.

  The second problem to be solved by the present invention is to reduce the ground contact area of the shoe sole compared to the conventional one and to make a walking motion by making it a structure that gives a light rolling (oscillating motion) motion back and forth in the traveling direction. Smooth and cultivate a sense of balance, increase the amount of exercise by using muscles that you do not normally use. It is to provide a sole with a structure that can.

  The third problem to be solved by the invention is that the heel and toes are warped up and the ground contact area of the shoe sole is made smaller than that of the conventional one. In order to achieve this, it is an object of the present invention to provide a sole having a structure capable of supporting an arch portion, balancing the entire foot, and maintaining stability.

  Other problems to be solved by the invention will be clarified sequentially below.

According to the present invention, the above problem is solved as follows.
1. A shoe sole including an outsole as a main component, which is made of a material having a hardness lower than that of the outsole main body, and a balance support member having a substantially longitudinal cross section in the longitudinal direction is formed, and the cross section is substantially at an arch corresponding portion of the balance support member. A hemispherical arch support member and a balance support member that protrudes toward the sole of the body are fitted into the outsole body from the rear end of the toe portion of the outsole body toward the heel-corresponding portion. In the sole which is joined and integrated with the outsole body, the bottom structure of the outsole is gradually raised in the range of 6 to 30 degrees between the toe side contact point where the outsole is in contact with the ground and the back surface of the toe tip. The shoe sole has a curved surface structure in which the angle formed by the heel side contact where the outsole is in contact with the ground and the back surface of the heel rear end portion is gradually raised within a range of 6 to 21 degrees.

2. In the above item 1, the shock absorbing member is further joined and integrated with the balance support member on the back surface of the wrinkle-corresponding portion of the balance support member.

3. 3. In the above item 1 or 2, further, a protrusion having a predetermined shape protrudes integrally with the balance support member toward the lower part of the outsole at the substantially central portion of the balance support member. A through hole is drilled in the hole so that the projection can be observed through the through hole.

4). 4. In any one of the above items 1 to 3, the maximum opening angle formed by the toe side contact where the outsole is in contact with the ground and the back surface of the tip of the toe is 30 degrees, and the heel side contact where the outsole is in contact with the ground and the heel rear end The maximum opening angle formed by the part back surface is 21 degrees.

5. In any one of the items 1 to 4, the hardness of the outsole body is in a range of 55 to 85 degrees with a JIS-C type hardness meter, and the hardness of the balance support member is 20 to 50 with a JIS-C type hardness meter. A range of degrees.

6). In any one of said 1-5, the through-hole which the hemispherical structure of the said arch support member penetrates is provided in the location corresponding to the said arch support member of an insole.

  According to the invention described in claim 1, the shoe sole includes an outsole as a main component, and is formed of a material having a hardness lower than that of the outsole body and having a substantially longitudinal cross section in the longitudinal direction. The balance support member, which has an almost hemispherical arch support member projecting toward the sole, integrally with the balance support member, is supported from the rear end of the toe portion of the outsole body. In the shoe sole that is fitted into the outsole body and joined to the outsole body, the angle formed by the toe side contact point where the outsole is in contact with the ground and the back surface of the toe tip is formed. Start up gradually in the range of 6 to 30 degrees, and gradually increase the angle formed by the heel side contact where the outsole is in contact with the ground and the back surface of the back end of the heel in the range of 6 to 21 degrees Since the curved structure and successful effects exemplified below.

1. The angle formed by the toe side contact where the outsole is in contact with the ground and the back surface of the tip of the toe is in the range of 6 to 30 degrees, and the heel side contact where the outsole is in contact with the ground and the back surface of the back end of the heel is formed. Since the angle of the curved surface is in the range of 6 to 21 degrees, it swings back and forth in the walking direction as shown by the double arrows on the toe side and the heel side in FIG. 1 to realize a smooth walking motion To do.

2. By swinging back and forth in the walking direction, compared to walking or jogging performed with conventional shoes, the amount of exercise is increased by using muscles that are not normally used, thereby improving health and dieting. Contributes to the effect.

3. A material having a hardness of about 30% to about 60% of the hardness of the outsole body, a balance support member having a substantially longitudinal section in the longitudinal direction is formed, and an arch support having a substantially hemispherical cross section at the arch corresponding portion of the balance support member The balance support member, which is formed integrally with the balance support member and projecting toward the sole, is fitted into the outsole body from the rear end of the toe portion of the outsole body toward the heel-corresponding portion, Since it is joined and integrated, the arch support member prevents drooping of the vertical arch due to weight, can prevent the pronation position where the foot tilts inward, can support the movement progress by guiding weight movement, The spherical structure of the arch support member with a substantially hemispherical cross section fits the curved surface structure of the arch, so that the vertical arch is completely supported structurally, foot fatigue is reduced, and compared to conventional shoes. Area provide compensation to stability is less defective.

  According to the invention described in claim 2, since the impact absorbing member is joined and integrated with the balance support member on the shoe sole described in claim 1, and further on the back surface of the heel-corresponding portion of the balance support member, In particular, it absorbs the impact applied to the heel when landing, and does not cause major damage to the various bones that make up the rib even when used for a long time.

  According to the third aspect of the present invention, the protrusion having a predetermined shape is provided integrally with the balance support member toward the lower part of the outsole at the substantially central portion of the balance support member, and on the other hand, Since a through hole is formed in the corresponding portion so that the protrusion of the balance support member can be observed through the through hole, a design effect is exhibited.

  According to the fourth aspect of the present invention, the maximum opening angle formed between the toe-side contact where the outsole is in contact with the ground and the back surface of the tip of the toe is 30 degrees, and the heel-side contact where the outsole is in contact with the ground and the heel rear end The maximum opening angle formed by the back surface of the part is 21 degrees, and the maximum opening angle formed by the toe side contact where the outsole is in contact with the ground and the back surface of the tip of the toe is the back side contact where the outsole is in contact with the ground. Since it is about 10 degrees larger than the maximum opening angle formed by the back of the edge, the swinging motion is smoothly performed forward and backward in the walking direction, and a series of walking motions of landing → moving the center of gravity → kicking is a kind of rhythm Is done quickly.

  According to the invention described in claim 5, the hardness of the outsole body is in the range of 55 to 85 degrees with a JIS-C type hardness meter, and the hardness of the balance support member is 20 to 50 degrees with a JIS-C type hardness meter. Since the hardness of the balance support member was softened to about 30 to 60% of the hardness of the outsole body, the balance support member distributed the body weight during walking almost uniformly to give a walking feeling without fatigue, On the other hand, by increasing the hardness of the outsole body to about 1.7 to about 3 times the hardness of the balance support member, it is possible to reduce the impact received from the ground during walking and to reduce the load on the sole.

  According to the sixth aspect of the present invention, since the through hole through which the hemispherical structure of the arch support member passes is provided at the corresponding position of the arch support member of the insole, the hemispherical structure of the arch support member is directly arched during use. Because it conforms to the curved surface structure, it supports the vertical arch completely structurally, reduces fatigue of the foot, compensates for defects with a smaller ground contact area than conventional shoes, and provides stability.

  Hereinafter, the present invention will be described with reference to the accompanying drawings. FIG. 1 is a sectional view showing the structure of an embodiment of the present invention. FIG. 2 is an exploded perspective view of one embodiment of the present invention. FIG. 3 is a cross-sectional view taken along the line II of FIG. 4 is a cross-sectional view taken along line II-II in FIG. FIG. 5 is another sectional view showing the structure of one embodiment of the present invention.

  In FIG. 1, a shoe sole 1 according to the present invention is mainly composed of an outsole body 2, a balance support member 3, and an impact absorbing member 7. The outsole body 2 is manufactured from an arbitrary material such as natural or various synthetic rubbers, ethylene-vinyl acetate copolymer (EVA), polyurethane, or a mixture thereof by an injection molding method or a flow molding method. The material to be selected is determined mainly by taking into account the use of shoes, production costs, and the like. In the outsole body 2, a boat-shaped recessed portion into which a balance support member 3 to be described later is fitted is drilled from the rear end portion 5 of the toe portion toward the heel-corresponding portion 6. The hardness of the outsole body 2 is set in a range of 55 to 85 degrees with a JIS-C type hardness tester. When the hardness of the outsole body 2 is 55 degrees or less, the original physical properties as a shoe sole such as strength, durability, and wear resistance are not maintained. Moreover, when the hardness of the outsole main body 2 is 85 degrees or more, it is too hard and the original physical property as a shoe sole is not maintained.

  With reference to FIG. 5, the curved surface structure of the bottom surface of the outsole 2 will be described. The bottom surface of the outsole 2 is gradually raised within a range of 6 to 30 degrees between the toe side contact (A) where the outsole 2 is in contact with the ground and the toe tip back surface 10, and the outsole 2 is connected to the ground. A curved surface structure is formed in which the angle formed by the heel side contact point B and the heel rear end back surface 11 is gradually raised within a range of 6 to 21 degrees. What is important in this case is the angle formed by the toe side contact (A) where the outsole 2 is in contact with the ground and the back surface 10 of the tip of the toe, and the heel side contact B where the outsole 2 is in contact with the ground and the back surface 11 of the back end of the heel. The angle formed by and is to gradually rise in the above angle range. For example, in FIG. 5, θ1 is 6 degrees, θ2 is 17 degrees, and θ3 is 29 degrees at three positions between the toe side contact (A) where the outsole 2 contacts the ground and the toe tip back surface 10. At the three points between the heel side contact B where the outsole 2 contacts the ground and the heel rear end back surface 11, θ′1 is 6 degrees, θ′2 is 14 degrees, and θ′3 is 21 degrees. And That is, in one embodiment of the present invention, the maximum opening angle formed by the toe side contact (A) where the outsole 2 is in contact with the ground and the toe tip back 10 is 29 degrees, and the outsole 2 is in contact with the ground. The maximum opening angle formed by the side contact B and the rear end back surface 11 is about 21 degrees.

  The length L between the toe side contact (A) where the outsole 2 is in contact with the ground and the heel side contact B where the outsole 2 is in contact with the ground takes into account the use of the shoe to be manufactured, the degree of balance required, etc. Should be determined. That is, if the length L between the toe side contact (A) where the outsole 2 is in contact with the ground and the heel side contact B where the outsole 2 is in contact with the ground is increased, the stability as a shoe increases. , In the walking or jogging by the rocking motion (rolling) forward and backward due to instability, by daringly using muscles that are not normally used, increase the amount of exercise, thereby improving health and improving the diet effect That is, the original function of the shoe of the present invention described above is deteriorated. On the contrary, if the length L between the toe side contact (A) where the outsole 2 is in contact with the ground and the heel side contact B where the outsole 2 is in contact with the ground is shortened, the stability as a shoe is reduced. On the other hand, in walking or jogging by rocking (rolling) forward and backward due to instability, the amount of exercise is increased by using muscles that are not normally used, thereby improving health and improving the diet effect. The above-described original function of the shoe of the present invention is improved. Accordingly, the length L between the toe side contact (A) where the outsole 2 is in contact with the ground and the heel side contact B where the outsole 2 is in contact with the ground is determined by the use of the shoe to be manufactured, the degree of balance required, and the walking. Or it should be determined in consideration of the proficiency level of jogging.

  A balance support member 3 made of a material having a lower hardness than the outsole body 2 and having a substantially longitudinal cross section in the longitudinal direction is formed on the outsole 2, and is fitted into the outsole body 2 to be joined and integrated with the outsole body 2. The hardness of the balance support member 3 is preferably in the range of 20 to 50 degrees with a JIS-C type hardness meter. When the hardness of the balance support member 3 is 20 degrees or less and 50 degrees or more with a JIS-C type hardness meter, the predetermined effect described above cannot be achieved.

  Further, an arch support member 4 having a substantially hemispherical cross section is projected at the portion corresponding to the arch of the balance support member 3 integrally with the balance support member 3 toward the sole. In one embodiment of the invention, the height of the arch support member 4 from the surface of the balance support member 3 is about 5 mm and the diameter is about 45 mm. However, these values should be able to be appropriately varied depending on various factors such as the use of the shoe, the age of the user, and the like. As long as the arch support member 4 is set to the same hardness as the balance support member 3, the arch support member 4 may be manufactured separately from the balance support member 3 using the same or different material as the balance support member 3 and bonded to a predetermined location. Alternatively, it may be formed integrally with the balance support member 3. However, when manufactured separately and bonded to a predetermined location, delamination or the like may occur during long-time use, and therefore, it is preferable to form it integrally with the balance support member 3.

  The arch support member 4 has a function of supporting the metatarsal periphery from below and preventing the arch from drooping. Therefore, the arch support member 4 with high hardness can prevent the vertical arch from drooping due to the weight, can prevent the pronation position where the foot is inclined inward, can support the movement progress by guiding the weight shift, Since the spherical structure of the arch support member 4 having a substantially hemispherical cross section matches the curved surface structure of the arch, the vertical arch is completely supported structurally, foot fatigue is reduced, and the ground contact area compared to conventional shoes Compensates for few defects and provides stability.

  Further, the shock absorbing member 7 is joined and integrated with the balance support member on the back surface of the balance support member 4 corresponding to the flange. The shock absorbing member 7 is not particularly limited and may be available from the market. The shock absorbing material used in the present invention is a foam material EVA, for example, Fuji High Pressure Industry Co., Ltd. ) And has physical properties of a hardness of 3 degrees, a rebound resilience of 2.3%, and an impact force of 11750N (impact force thickness of 2.6 to 2.8 mm). As described above, since the shock absorbing member 7 is joined and integrated with the balance supporting member 3 on the back surface of the balance supporting member 3 on the heel-corresponding portion, the impact applied to the heel is absorbed during walking, particularly when landing, Even if used, it does not cause major damage to the various bones that make up the ribs.

  Further, as shown in FIG. 1, a projection 8 having a predetermined shape is provided in a substantially central portion of the balance support member 3 so as to project downward from the outsole 2 and integrally with the balance support member 3. A through-hole 9 is formed in a corresponding portion of the projection 8 so that the projection 8 of the balance support member 3 can be observed through the through-hole 9. By adopting such a configuration, a unique design effect is exhibited, which contributes to merchandising.

  Furthermore, as described in FIG. 2, it is preferable to provide a through-hole 13 through which the hemispherical structure of the arch support member 4 passes at a corresponding position of the arch support member 4 of the midsole 12. With the insole 12 having such a structure, the hemispherical structure of the arch support member 4 directly matches the curved surface structure of the arch of the sole when in use, so that the vertical arch is structurally completely supported, Reduces fatigue and compensates for defects caused by the small contact area compared to conventional shoes, giving stability.

  2, 3 and 4, 16 is an anti-rotation position preventing member, and in FIGS. 3 and 4, 17 is an anti-rotation position preventing member. The anti-rotating position preventing member 16 and the anti-rotating position preventing member 17 are integrally provided with the out sole 2 at a predetermined height from the outer peripheral upper end portion of the center of the outsole 2, and stand from the outer peripheral upper end portion of the heel. It continues through the provided buttock rising portion 18. The pronation position refers to a state in which the foot is tilted inward when viewed from behind, and the pronation position refers to a state in which the foot is tilted outward when viewed from behind. Each of these forms has the opposite reaction. That is, in the pronation position, the foot is seen from directly above, and the abduction and dorsiflexion occur, and in the supination position, the inversion and sole bending occur. In such a state, not only the ribs but also various bones connected to the ribs are adversely affected.

Sectional drawing which shows the structure of one Example of this invention. The disassembled perspective view of one Example of this invention. Sectional drawing along the II line | wire of FIG. It is sectional drawing along the II-II line of FIG. Another sectional view showing the structure of one example of the present invention.

1: shoe sole 2: outsole body 3: balance support member 4: hemispherical arch support member 5: rear end of toe part 6: heel corresponding part 7: impact absorbing member 8: protrusion 9: through hole 10: tip of toe Back surface 11: Back side of rear edge 12: Insole 13: Through hole 14: Insole 15: Crust 16: Outer rotation prevention member 17: Pronation position prevention member 18: Ridge rising part θ1, θ2, θ3: Out Three angles θ1 ′, θ2 ′, θ3 ′ between the toe side contact A where the sole 2 is in contact with the ground and the toe front end back surface 11: the heel side contact B where the outsole 2 is in contact with the ground and the heel rear end back surface 11 Angle L between: Toe side contact A where the outsole 2 is in contact with the ground and the length B between the heel side contact B: Toe side contact B: heel side contact

Claims (6)

A shoe support (1) including an outsole (2) and an insole (12) as main components, and a balance support member having a boat-shaped longitudinal section made of a material having a lower hardness than the outsole body (2). 3), and a balance support member in which an arch support member (4) having a substantially hemispherical cross section is protruded toward the sole of the balance support member (3) at an arch-corresponding portion of the balance support member (3). (3) is inserted into the outsole body (2) from the rear end (5) of the toe portion of the outsole body (2) toward the heel-corresponding portion (6), and is integrated with the outsole body (2). The angle formed by the toe side contact (A) where the outsole (2) is in contact with the ground and the back surface of the tip of the toe (10) on the bottom of the outsole (1) is 6 to 30 degrees. Start up gradually in the range and outsole 2 Ground in contact with the heel side contact (B) and shoe sole with a curved structure launched gradually in a range of angle 6-21 degrees and the heel rear end portion rear face 11 is formed (1). The shoe sole according to claim 1, further comprising a shock absorbing member (7) joined and integrated with the balance supporting member (3) on the back surface of the heel-corresponding portion (6) of the balance supporting member (3). Further, a projection (8) having a predetermined shape is provided in a substantially central portion of the balance support member (3) so as to project downward from the outsole (2) and integrally with the balance support member (3). 3. The method according to claim 1, wherein a through hole (9) is formed in a corresponding position of the protrusion (8) of 2) so that the protrusion (8) can be observed through the through hole (9). Shoe sole (1). The maximum opening angle formed between the toe side contact (A) where the outsole (2) is in contact with the ground and the back surface (10) of the tip of the toe is 30 degrees, and the heel side contact (B) where the outsole (2) is in contact with the ground The shoe sole according to any one of claims 1 to 3, wherein a maximum opening angle formed by the back of the heel rear end portion (11) is 21 degrees. The outsole body (2) has a hardness of 55 to 85 degrees with a JIS-C type hardness meter, and the balance support member (3) has a hardness of 20 to 50 degrees with a JIS-C type hardness meter. The shoe sole according to any one of claims 1 to 4. The through hole (13) through which the hemispherical structure of the arch support member (4) passes is provided at a corresponding position of the arch support member (4) of the insole (12). Shoe sole as described in (1)

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