JP2010148790A - Shoe sole containing air cushion - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shoe sole for women's shoes with high-heeled wedge soles, capable of increasing the cushioning range to a burden added to the sole by optimizing the position of air cushions contained in the shoe sole. <P>SOLUTION: On the heel 17 of the shoe sole 15 of the wedge sole shoe of polyurethane rubber, heel part air cushions 1, each including a U-shaped circumferential pipe 2 including a ring-shaped pipe of flexible plastic, a plurality of ring-shaped horizontal pipes 3 provided apart from each other in a center part 2b between its right and left side pars 2a to communicate with the circumferential pipe 2, and a vertical pipe 4 communicating in the center part forward and backward, are disposed vertically apart from each other in the heel 17 in slit windows 18 opened in a plurality of stages in the right and left side parts 17a in the heel 17 in such a way that they are visible from sideways. Between the front part of the arch of the foot of the shoe sole 15 and the toes 20 in the shoe sole 15, sole front part air cushions 8 are arranged to face slit windows 19 open forward and backward in the right and left side parts 20a between the front part of the arch of the foot of the wedge sole and the toes 20. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a shoe sole that reduces the impact received from the ground, reduces the burden on the sole and reduces fatigue even when worn for a long time, and in particular, an air cushion is provided in the inside of the buttocks and the sole in front of the arch. The present invention relates to an arranged shoe sole.

  The shoe has a suitable space on the toe, fits well on the whole foot, has a comfortable mouth, and wears a shoe with an arch portion of the sole that is a hard part that does not touch the ground of the sole and this shoe sole A shoe that fits well with the arch of a person's foot and supports the foot is considered a comfortable shoe. However, even if the shoes seem to fit perfectly on the soles as described above, if they are worn for a long time, the soles are burdened and fatigued.

  Furthermore, there is a demand for a shoe sole that is more comfortable to wear even if it fits perfectly on the sole. As such a shoe, a shoe in which a hollow air cushion is inserted in a heel portion of a shoe sole is known. For example, as an air cushion to be inserted into the heel portion of these shoe soles, an air cushion having a U shape that is a shape along the outer periphery of the heel portion is known.

  Furthermore, as a wedge heel with a high heel height, women's shoe soles with an air cushion are spaced vertically from the left and right sides of the heel made of an elastic material and parallel to the bottom of the heel. A shoe sole in which an air cushion material is placed in two stages and the lower air cushion is twice as long as the upper air cushion has been filed (for example, see Patent Document 1). The air cushion material of the shoe sole of this application is comprised from the cylinder with which both ends were obstruct | occluded, and is formed by the soft plastic material so that compression deformation is possible. The shaft core of the air cushion material is embedded in the elastic material of the heel so as to follow the front-rear direction of the left and right sides of the heel. Furthermore, in the bag of the other form of this application, the inner portion of the air cushion material on the left and right side portions of the bag is filled with a load support material formed by compressing a piece of wood or sawdust, and thereby the central part of the bag part. Ensuring strength in odor. By the way, the thing of this application has an air cushion material only in the right and left side parts of the bag, and the cushioning action of the air cushion material does not act on the central part between the left and right side parts of the bag. The upper and lower air cushion materials are independent on the left and right, and the size of each air cushion material is limited to the short length of the side of the heel, so there is almost no air movement and the entire It is only compressed. For this reason, the fluctuation range of the buffering action as the cushion material is limited to a small one.

JP 2007-307115 A (paragraph 0025, FIGS. 4 and 5)

  The problem to be solved by the present invention is to improve the structure of the air cushion to be put in the material of the shoe sole in the shoe of the wedge sole having a flat sole with a high heel and particularly the shoe of the wedge sole for women, It is to provide a shoe sole that reduces the burden on the sole of the foot by optimizing the position of the sole into which the air cushion is inserted, reduces fatigue even when worn for a long time, and increases the buffer width of the burden. .

  In the invention according to claim 1, the means for solving the above problem is that, in the shoe sole 15 of the wedge sole made of polyurethane rubber, the left and right side portions 17a and 17b of the heel 17 of the shoe sole 15 and the left and right sides thereof A central portion 17c formed between the portions 17a has a U-shaped outer peripheral pipe 2 made of a soft plastic annular pipe and a central portion 2b between the left and right side portions 2a of the outer peripheral pipe 2 spaced apart in the front-rear direction. A horizontal pipe 3 composed of a plurality of annular pipes communicating with the pipe 2, and an annular vertical pipe communicating between the rear side portion 2 c of the U-shaped outer peripheral pipe 2 and the central portion of the plurality of horizontal pipes 3 in the front-rear direction. 4 each of the heel part air cushions 1 made of 4 faces a plurality of long hole windows 18 opened in the front-rear direction of the left and right side parts 17a of the heel 17 of the wedge sole so that it can be partially observed from the side part. Up and down To have been disposed. Further, left and right straight side pipes made of soft plastic annular pipes are formed on the front part of the arch of the sole 15 and the left and right side parts 20a between the toes 20 and the central part 20b formed between the left and right side parts 20a. 9 and the left and right side portions 20a of the right and left straight side pipes 9 are separated from each other in the front-rear direction, and a plurality of annular horizontal pipes 10 communicating with the left and right straight side pipes 9 and the horizontal pipes 10 A foot front air cushion 8 composed of a vertical pipe 11 communicating with the center part in the front-rear direction faces a long hole window 19 that opens in the front-rear direction of the left and right side parts 20a between the front part of the arch of the wedge sole 20 and the toes 20. It is arranged in the front part 21 between the front part of the arch and the toes 20. A shoe sole 15 of a wedge sole made of polyurethane rubber having the heel part air cushion 1 and the sole front part air cushion 8 disposed thereon.

  In the invention according to claim 2, the plurality of heel air cushions 1 arranged facing the long hole windows 18 in the front and rear directions of the plurality of steps of the wedge sole ridges 17 on the upper surface of the wedge sole ridges 17. The upper and lower lengths of the upper air cushion 1a arranged at the upper stage and spaced apart in parallel are made the longest, and the front and rear lengths of the middle air cushion 1b and the lower air cushion 1c arranged at the lower stage are made shorter as the lower stage is lowered. A shoe sole 15 of a wedge sole made of polyurethane rubber according to claim 1, wherein the shoe sole 15 is made of polyurethane rubber.

  According to the means of claim 1 of the present application, the collar air cushion is also disposed at the center of the collar, and the enclosed air is moved between the U-shaped outer peripheral pipe of the collar air cushion and the horizontal pipe at the center. Since it is possible, the load can be buffered even in the center part of the heel, and further, the front sole air cushion that allows air to move not only between the side part but also between the central part is also provided on the front part of the sole of the shoe sole. Thus, the load applied to the sole of the sole can be evenly distributed over the entire heel compared to the shoe of the sole having the conventional air cushion only on the heel. By doing so, the load on this part can also be buffered, and even if a shoe with a shoe sole having an air cushion on the buttocks and the front part of the sole is worn for a long time, fatigue does not occur.

  According to the second aspect of the present invention, the length in the front-rear direction of each step of the heel part air cushion having a plurality of steps is shortened from the upper stage to the lower stage, and each heel part air cushion is connected to the upper surface of the shoe sole. By setting it in parallel with the heel, the upper part of the heel of the wedge sole can be subjected to the load applied to the heel of the foot while conforming to the shape where the upper part is long and the lower part is short, and the conventional lower air cushion is long. The load applied to the sole of the foot can be evenly distributed over the entire heel compared to the case where the upper air cushion is shortened. Even if the shoe with the heel is worn for a long time, the conventional heel I feel less tired than the ones.

  For example, in a shoe made of a shoe sole having a heel portion in a wedge sole, in particular, a heel portion in a wedge sole for women's shoes, a multi-step heel air cushion inserted into the heel, for example, a triple air cushion composed of three upper and lower steps When the rear part is raised and the front part is lowered obliquely downward, the air in the pipe of the triple air cushion moves from the heel to the front of the sole and from the upper surface of the heel to the lower part. Therefore, weight from the top of the shoe heel to the first air cushion, from the first air cushion to the second air cushion, from the second air cushion to the third air cushion In order to receive from the hard ground by cooperating with the air cushion in front of the sole on the front of the wedge sole. Protect the ankle and knee joints to absorb the attack. In other words, by receiving the weight applied to the front part of the foot sole air cushion attached to the inside of the front sole of the shoe from the toe to the front of the arch, the toe part and the arch received from the ground during walking Absorbs and reduces the impact on the front part, reducing fatigue on the soles. Further, even when walking with a wedge heel shoe having a shoe sole containing the air cushion of the present invention, the user can walk very comfortably without feeling uncomfortable.

  The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 shows a shoe sole on the right side of the shoe sole 15, (a) showing a top view thereof, (b) showing a left side view thereof, and (c) showing a bottom view thereof. FIG. 2 shows the shoe sole 16 of the shoe for the left foot among the shoe sole 15, and (b) shows the right side surface thereof. 3A and 3B show the heel air cushion 1 disposed inside the heel 17 of the shoe sole 15. FIG. 3A shows its upper air cushion 1a, FIG. 3B shows its middle air cushion 1b, and FIG. 3C shows its lower air cushion. 1c, showing a set of three stages. FIG. 4 is a view showing the front foot air cushion 8 disposed on the front portion of the arch of the shoe sole 15 and the toe 20 for the left foot. FIG. 5 is a perspective view of the shoe sole 16 of the left foot shoe shown in FIG. 2 as viewed obliquely upward from the lower surface side.

  As shown in FIG. 1, the shoe sole 15 of the present means relates to, for example, a lady's wedge sole made of polyurethane rubber. As shown in the top view of FIG. 1A, the arch portion 24 on the upper surface of the shoe sole 1 has a plurality of recessed holes 22 having a depth reaching the back surface 15c, for example, a depth of about 7. Five concave holes 22 of 8 mm and three concave holes 22 of a depth of about 21 mm in the rear row are arranged in the lateral direction, so that a total of 16 concave holes 22 fill the shoe width of the arch 24 and the upper surface 15a. It is vacated from the side. A plurality of concave holes 23 having a depth reaching the back surface 15c, for example, two concave holes 23 having a depth of 5.5 mm are arranged in the lateral direction in the toe portion 25 on the upper surface of the shoe sole 1. And is vacated from the upper surface 15a side. The concave hole 22 and the concave hole 23 are such that the arch portion 24 and the toe portion 25 of the shoe sole 15 are flexibly bent when walking while wearing shoes, and the shoe sole 15 is cracked. Is preventing.

  Inside the heel 17 of the shoe sole 15 made of urethane rubber, there is a heel air cushion 1 as shown by a dotted line in FIG. 1A, and the front of the arch of the shoe sole 15 and the toes A foot front air cushion 8 is provided inside the space 20. Among these, as shown in (b) of FIG. 1, the heel part air cushion 1 has long hole windows 18 on the left and right side parts 17 a of the heel 17 of the shoe sole 1. The long hole window 18 is, for example, the longest upper long hole window 18a that is spaced in parallel with the upper surface 15a of the flange 17, the middle long long hole window 18b, and the shortest lower long hole window 18c. 3 stages are provided. The long upper air cushion 1a, the middle-length middle air cushion 1b, and the shortest lower air cushion 1c are disposed in the long hole windows 18 respectively, facing the left and right side portions 17a. Can see. Further, the foot sole air cushion 8 has long hole windows 19 on the front of the arch of the shoe sole 1 and the left and right side portions 20 a of the foot front portion 21 between the toes 20. The long hole window 19 is shorter than the long hole window 18 on the side of the heel 17, and therefore, even though one sole air cushion 8 is built in the polyurethane rubber of the sole 15. Three long hole windows 19 are provided in the left-right part 20a so as to be separated from each other in the front-rear direction. From the side surface 15b of the shoe sole 15 to the surface of the heel part air cushion 1 and the front sole air cushion 8 that can be seen facing the long hole window 18 and the long hole window 19, a depth of about 2 mm is recessed. Even if the side surface 15b is rubbed, the surface of the heel part air cushion 1 is not rubbed, so it is hard to be wrinkled and has durability. When the long hole window 18 and the long hole window 19 are viewed from the side, they can be seen through from the horizontal pipe 3 and the horizontal pipe 10 to the opposite side. The same applies to the side surface 16b of the shoe sole 16 of the left foot shoe shown in FIG. 2, and the heel air cushion 1 and the foot front air that are seen facing the long hole window 18 and the long hole window 19 are the same. Since the surface of the cushion 8 is recessed about 2 mm deeper than the side surface 15b of the shoe sole 15, even if the side surface 15b receives friction, the surface of the heel part air cushion 1 is not rubbed. It is hard to stick and is durable.

  As shown in FIG. 3, the flange air cushion 1 includes a plurality of, for example, five horizontal pipes 3, which are made of a soft plastic and communicate with a U-shaped outer peripheral pipe 2 and its left and right side portions 2 a, and U It consists of each annular pipe of the vertical pipe 4 which connects the several horizontal pipe 3 of the center part 2b from the rear side part 2c of the character-shaped outer periphery pipe 2. As shown in FIG. At the tip of the vertical pipe 4, there is an enclosing port 5 that is closed when air or nitrogen gas is encapsulated for the purpose of action. Similarly, as shown in FIG. 4, the sole front air cushion 8 made of soft plastic includes a right and left straight side pipe 9 and a plurality of, for example, three horizontal pipes 10 communicating these, Each of the horizontal pipes 10 is composed of annular pipes of vertical pipes 11 communicating with the center. At the rear end of the vertical pipe 11, there is a sealing port 12 that is closed when air or nitrogen gas is sealed for action. Further, when each annular pipe is manufactured by combining flat materials such as vinyl chloride, which is a soft plastic, a joint portion 6 that is a portion between the annular pipes is formed. Is provided with a through-hole 7 in the center thereof. By having this through hole 7, when the heel part air cushion 1 and the sole front air cushion 8 are enclosed in urethane rubber, the upper and lower urethane rubbers of these air cushions are integrated through the through hole 7. The shoe sole 15 is strong enough to withstand long-term use.

  For example, the above-described three-stage upper long hole window 18a, middle long hole window 18b, and lower long hole window 18c are arranged so as to face the long hole window 18. 1, for example, the above-mentioned three-stage longest upper air cushion 1 a, medium-length middle air cushion 1 b, and shortest lower air cushion 1 c are shown in FIG. As shown in FIG. 2 and FIG. 2, the wedge sole 17 is disposed in the heel 17 so as to be parallel to the upper surface of the heel 17 of the shoe sole 15 and to be spaced downward from the upper to the lower. That is, as described in the effect of the invention, the rear part of each heel part air cushion 1 is the highest and the front part is directed obliquely downward and parallel to the upper surface of the heel 17 of the shoe sole 15. The weight during walking from the heel 17 to the front sole 21 which is the front part of the arch 24 and from the upper surface to the lower part of the heel 17 is hung, so the air in the pipe of the triple air cushion Some air or nitrogen flows from the upper surface of the heel 17 of the shoe sole 15 to the first upper air cushion 1a, from the first upper air cushion 1a to the second middle air cushion 1b, and to the second middle air. While the weight of the pedestrian is sequentially moved from the cushion 1b to the third lower air cushion 1c, it is sequentially received by the air in the buttocks air cushion 1 of each step, and in this case, the foot built in the front portion of the wedge sole Back front air By Deployment 8 cooperates, guarding a shock absorbing relieve ankle and knee joints from impact received from a hard surface. In this way, the heel air cushion 1 is enclosed in the front sole air cushion 8 attached to the inside of the outsole, which is the shoe sole 15 of the toe portion of the toe portion 25 from the front of the arch portion 24, and enclosed in them. By receiving the weight applied to that part with the air, the shock applied to the toe part 25 from the front of the heel 17 and the arch part 24 received from the ground during walking can be absorbed and relieved to reduce the fatigue of the soles. it can.

  FIG. 5 is a perspective view of the shoe sole 16 of the left shoe viewed obliquely upward from the lower surface side. The shoe sole 16 is a shoe sole 16 of a shoe for left foot of a normal wedge sole, and has a back surface 15, and the back surface 15 side of the rear foot portion 17 b of the heel 17 is cut obliquely. Further, the left and right side portions of the back surface 15 of the arch portion 24 are cut away. By the way, about the shoe sole 15 of the present invention, a weight of 10 kg is dropped from a height of 20 mm onto the upper surface of the heel of the shoe sole 15 having the three-step heel air cushion 1, and the generated impact acceleration is measured. When the impact test for calculating the force was conducted by the Living Goods Testing Center of the Japan Spinning Inspection Association, the impact force at the heel 17 was 900N. On the other hand, as a comparative example, the test result of the heel portion of the shoe sole 15 having the heel portion air cushion 1 on the heel 17 is 800 N, and the impact force of the present invention is lower than that of the comparative example. Therefore, it was found that the shock absorbing force for absorbing the impact was excellent.

  A method for forming a shoe sole 15 including a portion of a heel 17 having a heel portion air cushion 1 having three steps and a front portion of an arch having a foot front air cushion 8 and a portion between the toes 20 of the means of the present invention. This will be described below. First, air or nitrogen gas, which is air, is enclosed in the heel part air cushion 1 and the sole front part air cushion 8 made of soft vinyl chloride shown in FIGS. 3 and 4, and the filling port 5 of the heel part air cushion 1 and The sealing opening 12 of the front foot air cushion 8 is closed to prepare. Next, for example, in the mold shoe sole mold, the shortest lower air cushion 1c, the middle middle air cushion 1b of the length, which are prepared in order from the bottom to the portion of the heel 17 so as to be parallel to the upper surface of the shoe sole 15, Positioned and positioned while being spaced apart from the long upper air cushion 1a, and further positioned the foot front air cushion 8 prepared between the front part of the arch and the toes 20 and pouring molten urethane rubber into the mold. Molded to the bottom 15. The most difficult thing in this molding is the lower air cushion 1c to be placed in the lower stage of the mold, and it is necessary to prevent this positional deviation, and if this shifts, the second stage middle air cushion 1b and the third stage air cushion 1b. The upper air cushion 1a cannot be inserted. Further, in this case, if the solidification of the urethane rubber liquid is shifted, it becomes a defective product, so that the timing of injecting the urethane rubber is carefully poured and molded so as not to shift.

A shoe sole on the right side of the shoe sole, (a) is a top view thereof, (b) is a left side view thereof, and (c) is a bottom view thereof. Among the soles, the sole of the shoe for the left foot, (b) shows its right side. A heel air cushion disposed inside the heel of the shoe sole, wherein (a) is the upper air cushion, (b) is the middle air cushion, and (c) is the lower air cushion. Indicates a pair. It is a figure which shows the use for the left foot of the sole front air cushion arrange | positioned inside the front part of the arch of a shoe sole, and a toe. It is the perspective view which looked at the shoe sole of the shoe for left feet shown in FIG. 2 diagonally upward from the lower surface side.

Explanation of symbols

1 Cushion Air Cushion 1a Upper Air Cushion 1b Middle Air Cushion 1c Lower Air Cushion 2 U-shaped Peripheral Pipe 2a Left Right Part 2b Center Part 2c Rear Side Part 3 Horizontal Pipe 4 Vertical Pipe 5 Sealing Port 6 Connecting Portion 7 Through Hole 8 Sole front air cushion (in front of arch)
9 Straight side pipe 10 Horizontal pipe 11 Vertical pipe 12 Filling port 13 Connecting part 14 Through hole 15 Shoe sole 15a Upper surface (right side)
15b Side (right side)
15c Back side (right side)
16 Shoe sole (for left foot shoes)
16b Side (left side)
17 踵 17a Left and right side portion 17b Rear side portion 17c Center portion 18 Elongated hole window (left and right side portions of heel)
18a Upper long hole window 18b Middle long hole window 18c Lower long hole window 19 Long hole window (left and right sides of the front of the arch)
20 Between arch front and toes 20a Left right side 20b Center part 21 Foot front part 22 Recessed hole (arch part)
23 Concave hole (toe)
24 arch part 25 toe part

Claims (2)

  In a shoe sole of a wedge sole made of polyurethane rubber, a U-shaped outer peripheral pipe made of an annular pipe made of a soft plastic is provided at the right and left side portions and the rear side portion of the shoe sole and between the left and right side portions. , A horizontal pipe made up of a plurality of annular pipes communicating with the outer peripheral pipe with the central portion between the left and right side portions of the outer peripheral pipe being separated from the front and rear, and the rear side portion and the plurality of U-shaped outer peripheral pipes One side of the flange air cushion consisting of an annular vertical pipe that communicates with the center of the horizontal pipe in the front-rear direction on the left and right sides of the heel of the wedge sole, facing each of the long slot windows that open in the front-rear direction It is arranged in the heel so that it can be partially observed from the upper part, and is soft on the left and right side parts between the front part of the arch and the toes of the shoe sole and the central part between the left and right side parts. Left and right made of plastic annular pipe A plurality of annular horizontal pipes that communicate with the right and left straight side pipes by separating the right and left side parts of the right and left straight side pipes back and forth, and the central part of the horizontal pipe The front foot and the toes of the arch with the front air cushion made of a vertical pipe that communicates with the front and back of the foot, facing the oblong window of the front and back of the wedge sole in the front and rear sides of the arch A shoe sole of a wedge sole made of polyurethane rubber, characterized by being disposed in the front part of the sole between.   The multi-step heel air cushions, which are arranged in front and back of the wings of the wedge sole and facing the long hole windows of the openings, are arranged in the upper tier of the wedge sole, spaced apart in parallel to the upper surface of the heel of the wedge sole. The front and rear lengths of each of the middle air cushion and the lower air cushion disposed at the lower stage are shortened toward the lower stage so that the front and rear lengths of the middle air cushion and the lower air cushion are disposed at the lower stage. Wedge sole shoe sole made of the polyurethane rubber described.

Images