JP2012183278A - Shoe sole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shoe sole provided with a heel having a structure of a sophisticated cushioning effect that can alleviate impact force due to a jolt upon landing and can convert repulsive force from ground into thrust to move from landing to kicking action smoothly in walking or running.SOLUTION: In the shoe sole 2 having the heel 1, the heel 1 has a structure that the toe 3 of the shoe sole 2 is directed forwards and the reverse is directed backwards, and a slant face 6 from the back uppermost end 4 of the heel 1 to the rear lowermost end 5 of the heel 1 is assumed, and a region 7 above the slant face 6 is formed of a high bounce foam and a region 8 below the slant face 6 is formed of a low bounce foam. Due to this structure, impact due to a jolt from ground at a rear end part of the heel 1 when landing is minimized while at the same time gradually increasing in succession a repulsive force against the heel 1 from ground during transition to walking or running and maximizing the repulsive force from ground at the front end part of the heel 1, thus converting the repulsive force from ground into thrust to move from landing to kicking action smoothly.

Description

  The present invention relates to a shoe sole provided with a heel having a highly functional cushion effect. More specifically, the present invention relates to a high-performance cushioning material composed of a composite material of a high resilience foam and a low resilience foam and the use of the cushioning material from the ground at the rear end of the bag at the time of landing. Minimize the impact force due to thrust, and gradually increase the repulsive force from the ground to the heel in the process of walking or running, maximize the repulsive force from the ground at the tip end of the heel, The present invention relates to a shoe sole provided with a heel having a highly functional cushion effect that is converted to a propulsive force that smoothly shifts from landing to kicking out.

  Roughly disassembling the movement of the foot when a human walks or runs, landing behind the buttocks → landing on the outer arch → grounding from the fifth finger ball joint to the first finger ball joint → first It consists of a kicking action of the finger part, the second finger part, the third finger part, the fourth finger part, and the fifth finger part, and these actions are successively shifted. In these continuous movements, the weight load applied to the sole becomes the largest when landing on the buttocks as the first step and kicking out as the final step. That is, if the relationship between the impact force and repulsive force applied to the kite when walking or running is expanded and the time is extended, the maximum impact force is applied to the rear end of the kite at the time of landing. The repulsive force of the heel is minimized, and as the heel is gradually lifted to move to the walking or running process, the repulsive force applied to the heel gradually increases, and at the tip of the heel, the repulsive force is maximized and kicking out begins. . If this is schematically illustrated, a slope is drawn from the upper vertex of the right side of the rectangle to the lower vertex of the left side, and the rectangle is divided into two by the slope. Therefore, the impact force due to the thrust from the ground at the rear end of the heel at the time of landing is minimized, and the repulsive force from the ground at that time is minimized, and in the transition process to walking or running, The impact force due to the thrusting up of the arm is gradually decreased and the repulsive force from the ground is gradually increased accordingly, and the repulsive force from the ground is maximized at the tip of the heel to kick from the landing. It is a requirement for walking and running ideally and healthily to shift to a propulsive force that smoothly shifts to the outing.

  By the way, in recent years, the number of people who perform walking or jogging is increasing regardless of gender, and a wide variety of walking shoes or jogging shoes are on the market. Conventionally, it has been proposed to use a special material, for example, a high resilience material and / or a low resilience material, in order to mitigate the impact of landing on the heel of a walking shoe or jogging shoe.

  For example, Patent Document 1 discloses a heavy shoe that applies a greater load to the lower limbs than usual to the leg muscles during walking. In this case, two types of weight adjusting members are embedded in the shoe sole. The first weight adjusting member is embedded in the center of the heel portion of the shoe sole, and the second weight adjusting member is interposed between the shoe sole and the insole. The overall weight can be adjusted by attaching and detaching a second weight adjusting member arranged in advance and having a different weight prepared in advance. The first weight adjusting member is a solid material having a substantially rectangular parallelepiped shape, and is a material having a weight such as metal, rubber, and synthetic resin.

  Patent Document 1 [0017] outlines that “the completed heavy shoe has a first weight adjusting member embedded in the bag at first so that the center of gravity of the shoe is changed from the center to the bag, and then the second weight adjusting member is used as the shoe. By setting it in, the center of gravity of the shoe moves to the front of the toe and can be easily set to the middle point of the first metatarsal bone of the foot and the lowest point and middle of the ribs, thereby balancing the weight It is possible to walk or run in a state, and the entire weight can be evenly distributed to the toe portion and the heel portion. Therefore, the shoe described in Patent Document 1 is mainly intended to move the center of gravity of the shoe by the action of two types of members, the first weight adjusting member and the second weight adjusting member. Minimize the impact force caused by the thrust from the ground at the rear edge, and gradually increase the repulsive force from the ground to the kite in the process of walking or running, and repel the ground from the ground at the tip of the kite. It does not suggest a shoe heel with a structure that maximizes the force and shifts to a driving force that smoothly transitions from landing to kicking.

  Patent Document 2 discloses an impact element that has both a mechanical shock absorbing force and a repulsive force, can contribute to weight reduction of a member, a reduction in manufacturing cost, and can contribute to an improvement in design, and a shoe equipped with the same Is disclosed. Patent Document 2 [0013] outlines that “the impact element according to claim 1 is composed of silicone gel or silicone gel as a main component and an element main body, inside the element, a deformation-permitting hole, and an outer periphery of the element main body. The surface is formed with a deformation-permissible recess on the surface, which demonstrates the excellent mechanical shock absorbency of silicone gel, and the deformation of the impact element into the element body due to the presence of the deformation-permissible hole. In addition, the space formed between the deformation-permitting hole and the upper and lower surfaces of the element body is hermetically sealed, and the rebound characteristics due to the air damper action are also exhibited. Further, referring to the drawing of Patent Document 2, the impact element embedded in the heel of the shoe has a deformation-permissible hole in the center, and six projecting pieces project radially from the deformation-permissible hole. In addition, it has an extremely complicated structure and is housed in a housing portion provided in front of the heel, that is, in the toe direction. Therefore, in the shoe described in Patent Document 2, the impact force due to the push-up from the ground at the time of landing of the bag is not limited to the entire bag, but only at a very limited portion corresponding to the shock element. Therefore, the shoe described in Patent Document 2 minimizes the impact force caused by pushing up from the ground at the rear end of the heel at the time of landing, and continuously applies the repulsive force from the ground to the heel during the transition to walking or running. In this case, it is suggested that the shoe heel has a structure that is gradually increased and converted to a propulsive force that smoothly shifts from landing to kicking out at the tip of the heel, maximizing the repulsive force from the ground. Absent.

  Patent Document 3 discloses a smooth and comfortable shoe that softens the grounding impact when wearing for jogging, walking, etc., and further reduces the impact force at the time of kicking up when the foot leaves the ground as much as possible. However, the structure is such that an impact-absorbing material made of a blend material of a gel-like material mainly composed of a polyolefin resin and rubber is embedded in substantially the center of the portion corresponding to the ground contact impact force. Therefore, although there is an impact absorbing material effect on the impact force on the heel from the vertical direction, the shoe described in Patent Document 3 has an impact force due to the thrust from the ground at the rear end of the heel at the time of landing. In the process of transitioning to walking or running, gradually increase the repulsive force from the ground to the kite continuously, maximize the repulsive force from the ground at the tip of the kite, and kick from landing to kicking It does not suggest a shoe heel with a structure that allows for a smooth transitional propulsion.

JP 2009-240444 A JP-A-8-38211 JP-A-8-280403

  The first problem to be solved by the present invention is to eliminate the drawbacks of the prior art described above, reduce the impact force caused by the thrust from the ground at the time of landing of the kite in walking or running, and at the same time smooth the kicking operation It is to provide a shoe sole having a heel having a structure having a high-functional cushioning effect that can be converted into a propulsive force that shifts to a position.

  The second problem to be solved by the present invention is to minimize the impact force caused by the thrust from the ground at the rear end of the kite at the time of landing, and to repel the kite from the ground during the transition to walking or running. Of the structure with a high-functional cushion effect that can be converted to a propulsive force that smoothly shifts from landing to kicking out at the tip of the heel, maximizing the repulsive force from the ground To provide a sole with a heel.

  In the shoe sole having the heel part, the above-mentioned problem assumes that the toe direction of the shoe sole is the front, the heel direction of the shoe sole is the rear, and the slope from the rear uppermost end of the heel part to the front lowermost end of the heel part, The problem is solved by configuring the region above the slope with a high-rebound foam and configuring the region below the slope with a low-resilience foam.

  According to the first aspect of the present invention, the impact force caused by the thrust from the ground at the rear end of the kite at the time of landing is minimized, and the repulsive force from the ground to the kite is gradually and gradually increased in the process of walking or running. In this case, the repulsive force from the ground can be maximized at the tip of the kite and converted to a propulsive force that smoothly shifts from landing to kicking.

The whole heel part perspective view of the shoes of the present invention. FIG. 2 is a cross-sectional view taken along line II in FIG. 1. It is sectional drawing which shows the state which put on the shoes provided with the shoe sole of this invention, and removed the crust. The whole perspective view of a reference example. Sectional drawing in line II-II of FIG. It is sectional drawing which shows the state which put on the shoes provided with the shoe sole of the reference example, and removed the crust.

The best mode for carrying out the invention will be described with reference to the accompanying drawings.
FIG. 1 is a perspective view of a heel part 1 of a shoe sole 2 according to the present invention. FIG. 2 is a cross-sectional view taken along the line II of FIG. FIG. 3 is a cross-sectional view showing a state where a shoe having a shoe sole of the present invention is worn and the scabbard is removed.

  The shoe sole 2 of the present invention has a heel part 1, the toe 3 direction of the shoe sole 2 is the front, and the reverse direction is the rear, from the rear uppermost end 4 of the heel part 1 to the front lowermost end of the heel part 1. Assuming a slope 6 that reaches 5, a region 7 above the slope 6 is made of a high resilience foam, and a region 8 below the slope 6 is made of a low resilience foam. That is, as shown in FIGS. 1 and 2, the heel part 1 of the shoe sole 2 according to the present invention assumes a slope 6 from the rear uppermost end 4 of the heel part 1 to the front lowermost end 5 of the heel part 1, and The region 8 is composed of a region 7 above the slope 6 and a region 8 below the slope 6, and the region 8 below the slope 6 is gradually reduced toward the toe 3. On the contrary, the upper region 7 is gradually increased gradually toward the toe 3. Accordingly, during the walking or running process, the impact force caused by the thrust from the ground at the rear end 4 of the buttocks 1 at the time of landing is minimized, and the repulsive force from the ground to the buttocks 1 during the transition to walking or running. Is continuously increased gradually, and at the front end portion 5 of the collar portion 1, the repulsive force from the ground is maximized, and the propulsive force smoothly shifts from landing to kicking out.

  A wide variety of low-resilience foams are now on the market. The low-rebound foam suitable for use in the present invention is not particularly limited as long as it has a rebound resilience of less than 10%, preferably less than 5% at room temperature (5-35 ° C.). In addition, characteristics other than rebound resilience, such as hardness, tensile strength, elongation, tear strength, compression set, heat resistance, oil resistance, water resistance, cold resistance, etc. are those that can withstand the normal use environment on the shoe sole. If so, it is not particularly limited.

  A wide variety of high resilience foams are now on the market. The high resilience foam suitable for use in the present invention is not particularly limited as long as the resilience is 30% or more at room temperature (5-35 ° C.). In addition, characteristics other than rebound resilience, such as hardness, tensile strength, elongation, tear strength, compression set, heat resistance, oil resistance, water resistance, cold resistance, etc. are those that can withstand the normal use environment on the shoe sole. If so, it is not particularly limited.

FIG. 3 is a cross-sectional view showing a state in which a shoe 1 having the shoe sole 1 of the present invention is worn and the scabbard is removed, and schematically showing stress from the ground that is impacted by a foot during walking or running. It is. As shown in FIG. 3, in the shoe sole 2 having the heel portion 1, the toe 3 direction of the shoe sole 2 is the front, the reverse direction is the rear, and the rear uppermost end 4 of the heel portion 1 is the front most forward of the heel portion 1. Assuming the slope 6 reaching the lower end 5, the region 7 above the slope 6 is made of a high-rebound foam, and the region 8 below the slope 6 is made of a low-rebound foam. At the time of traveling, in Step A, the impact force caused by the thrust from the ground at the rear end of the buttocks 1 at the time of landing is minimized, and in Step B, kicking from the landing due to the synergistic effect of the high resilience foam and the special structure The movement to the ejection is smoothly shifted, and kicking is effectively performed in Step C. As shown in FIGS. 1 to 3, the heel part 1 of the shoe sole 2 of the present invention assumes the slope 6 from the rear uppermost end 4 of the heel part 1 to the front lowermost end 5 of the heel part 1, and the slope 6. The upper region 7 and the lower region 8 are composed of two regions, and the region 8 below the inclined surface 6 is gradually and gradually decreased toward the toe 3, In addition, since the upper region 7 gradually increases gradually toward the toe 3, the impact of the rear end portion 4 of the buttocks 1 at the time of landing from the ground up during the walking or running process In the process of shifting to walking or running, the repulsive force from the ground to the buttocks 1 gradually increases gradually, and the repulsive force from the ground is maximized at the tip 5 of the buttocks 1. And then, it started to kick out from the landing and changed to a driving force that makes a smooth transition That. That is, in the walking or running motion, [the push-up prevention effect from the ground] → [the kicking operation from the landing] → [the transition to kicking out] is continuously and gradually smoothly shifted.
[Reference example]

  Reference examples will be described with reference to the accompanying drawings. FIG. 4 is a perspective view of the heel part 1 of the shoe sole 2 of the reference example. 5 is a cross-sectional view taken along line II-II in FIG. FIG. 6 is a cross-sectional view showing a state in which a shoe having a shoe sole of a reference example is worn and the scabbard is removed.

  The shoe sole 15 of the reference example has the heel part 9, the toe 16 direction of the shoe sole 15 is the front, the reverse direction is the rear, and the rearmost uppermost end 10 of the heel part 9 is the rearmost rear part of the heel part 9. Assuming the slope 12 reaching the lower end 11, the region 13 above the slope 12 is composed of the same high resilience foam as used in the example, and the region 14 below the slope 12 is used in the example. It consists of the same low resilience foam. That is, as shown in FIGS. 4 to 6, the heel portion 9 of the shoe sole 15 of the reference example is assumed to have a slope 12 that extends from the front upper end 10 of the heel portion 9 to the rear lowermost end 11 of the heel portion 9, and The region 14 is composed of a region 13 above the inclined surface 12 and a region 14 below the inclined surface 12, and the region 14 below the inclined surface 12 gradually decreases gradually toward the rear of the flange 9. On the contrary, the upper region 13 is gradually increased gradually toward the toe 16.

  As a result of walking and running while actually wearing shoes with the heel part 9 as shown in FIGS. 4 and 5, the impact force due to the rear end of the buttock part 9 being pushed up from the ground increases, and walking or running In the transition process, the repulsive force from the ground to the heel portion 9 gradually decreases continuously, and the repulsive force due to the thrust from the ground is minimized at the front upper end portion 10 of the heel portion 9 to kick from the landing The transition to out is not smooth and cannot be converted to sufficient propulsive force. To walk or run forward, more energy is required than in the embodiment, and walking or running forward is impeded. It was.

Industrial application fields

  The shoe sole (2) having the heel part (1) of the present invention has the rear uppermost end (4) of the heel part (1) with the direction of the toe (3) of the shoe sole (2) as the front and the reverse direction as the rear. ) To the front lowermost end (5) of the heel part (1), the region (7) above the slope (6) is made of a high resilience foam, and the slope (6) The lower region (8) is made of low-rebound foam, minimizes the impact force caused by the thrust from the ground at the rear end of the buttocks (1) at the time of landing, and in the transition process to walking or running, The repulsive force from the ground to the buttocks (1) is gradually increased gradually, and the repulsive force from the ground is maximized at the front end of the buttocks (1) to smoothly shift from landing to kicking. It has a high-functional cushioning effect that can be converted into propulsive force, so it can be used for walking and jogging. Ring, can be used in the running, and the like.

DESCRIPTION OF SYMBOLS 1 heel part 2 shoe sole 3 tiptoe 4 rear uppermost end 5 of heel part 1 front lowermost end 6 of heel part 1 slope 7 upper side region 8 lower side region 9 heel part 10 forward uppermost end 11 of heel part 9 rear of heel part 9 Bottom end 12 Slope 13 Upper region 14 Lower region 15 Sole 16 Toe

The shoe sole 2 of the present invention has a heel part 1, the toe 3 direction of the shoe sole 2 is the front, and the reverse direction is the rear, from the rear uppermost end 4 of the heel part 1 to the front lowermost end of the heel part 1. Assuming the slope 6 reaching 5, the area 7 above the slope 6 is made of a highly repellent foam having a rebound resilience of 30% or more at room temperature, and the area 8 below the slope 6 is rebounded at room temperature. It is composed of a low resilience foam having an elasticity of less than 10% . That is, as shown in FIGS. 1 and 2, the heel part 1 of the shoe sole 2 according to the present invention assumes a slope 6 from the rear uppermost end 4 of the heel part 1 to the front lowermost end 5 of the heel part 1, and The region 8 is composed of a region 7 above the slope 6 and a region 8 below the slope 6, and the region 8 below the slope 6 is gradually reduced toward the toe 3. On the contrary, the upper region 7 is gradually increased gradually toward the toe 3. Accordingly, during the walking or running process, the impact force caused by the thrust from the ground at the rear end 4 of the buttocks 1 at the time of landing is minimized, and the repulsive force from the ground to the buttocks 1 during the transition to walking or running. Is continuously increased gradually, and at the front end portion 5 of the collar portion 1, the repulsive force from the ground is maximized, and the propulsive force smoothly shifts from landing to kicking out.

FIG. 3 is a cross-sectional view showing a state in which the scabbard is removed while wearing the shoe 1 having the shoe sole 1 of the present invention, and schematically shows the stress from the ground that is impacted by the foot during walking or running. FIG. As shown in FIG. 3, in the shoe sole 2 having the heel portion 1, the toe 3 direction of the shoe sole 2 is the front, the reverse direction is the rear, and the rear uppermost end 4 of the heel portion 1 is the front most forward of the heel portion 1. Assuming the slope 6 reaching the lower end 5, the region 7 above the slope 6 is made of a highly repellent foam having a rebound resilience of 30% or more at room temperature, and the region 8 below the slope 6 is formed at room temperature. Since it is composed of a low-rebound foam having a rebound resilience of less than 10%, during walking or running, in Step A, the impact force due to the thrust from the ground at the rear end of the buttocks 1 at the time of landing is minimized, In Step B, due to the synergistic effect of the high resilience foam and the special structure, the movement from landing to kicking is smoothly transferred, and kicking is effectively performed in Step C. As shown in FIGS. 1 to 3, the heel part 1 of the shoe sole 2 of the present invention assumes the slope 6 from the rear uppermost end 4 of the heel part 1 to the front lowermost end 5 of the heel part 1, and the slope 6. The upper region 7 and the lower region 8 are composed of two regions, and the region 8 below the inclined surface 6 is gradually and gradually decreased toward the toe 3, In addition, since the upper region 7 gradually increases gradually toward the toe 3, the impact of the rear end portion 4 of the buttocks 1 at the time of landing from the ground up during the walking or running process In the process of shifting to walking or running, the repulsive force from the ground to the buttocks 1 gradually increases gradually, and the repulsive force from the ground is maximized at the tip 5 of the buttocks 1. And then, it started to kick out from the landing and changed to a driving force that makes a smooth transition That. That is, in the walking or running motion, [the push-up prevention effect from the ground] → [the kicking operation from the landing] → [the transition to kicking out] is continuously and gradually smoothly shifted.

The shoe sole 15 of the reference example has the heel part 9, the toe 16 direction of the shoe sole 15 is the front, the reverse direction is the rear, and the rearmost uppermost end 10 of the heel part 9 is the rearmost rear part of the heel part 9. Assuming a slope 12 reaching the lower end 11, the region 13 above the slope 12 is made of a highly repellent foam having a rebound resilience of 30% or more at the same normal temperature as used in the embodiment, and is located below the slope 12 The region 14 is composed of a low-rebound foam having a rebound resilience of less than 10% at the same normal temperature as used in the examples. That is, as shown in FIGS. 4 to 6, the heel portion 9 of the shoe sole 15 of the reference example is assumed to have a slope 12 that extends from the front upper end 10 of the heel portion 9 to the rear lowermost end 11 of the heel portion 9, and The region 14 is composed of a region 13 above the inclined surface 12 and a region 14 below the inclined surface 12, and the region 14 below the inclined surface 12 gradually decreases gradually toward the rear of the flange 9. On the contrary, the upper region 13 is gradually increased gradually toward the toe 16.

The shoe sole (2) having the heel part (1) of the present invention has the rear uppermost end (4) of the heel part (1) with the direction of the toe (3) of the shoe sole (2) as the front and the reverse direction as the rear. ) To the front lowermost end (5) of the heel portion (1), and a region (7) above the slope (6) is a highly repellent foam having a rebound resilience of 30% or more at room temperature. The region (8) below the inclined surface (6) is made of a low-rebound foam having a rebound resilience of less than 10% at room temperature, and from the ground at the rear end of the collar (1) at the time of landing. In the process of shifting to walking or running, the repulsive force from the ground to the buttocks (1) is continuously increased gradually and the ground at the front end of the buttocks (1) is minimized. High-function cushion that maximizes the repulsive force from the top and shifts to a driving force that smoothly transitions from landing to kicking It is provided with the heel having a down effect can be utilized Uokin'ngu, jogging, the running and the like.

Claims (1)

  In the shoe sole (2) having the heel part (1), the direction of the toe (3) of the shoe sole (2) is the front, the reverse direction is the rear, and the heel is from the rear uppermost end (4) of the heel part (1). Assuming a slope (6) that reaches the lowermost front end (5) of the part (1), the region (7) above the slope (6) is made of a high resilience foam and is below the slope (6). The region (8) is made of a low-rebound foam, minimizes the impact force caused by the thrust from the ground at the rear end of the buttocks (1) at the time of landing, and in the transition to walking or running, 1) Increase the repulsive force from the ground continuously and gradually to maximize the repulsive force from the ground at the front end of the buttocks (1), and smoothly move from landing to kicking. A shoe sole having a heel part, comprising a heel having a highly functional cushioning effect to be converted

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