One-piece resin sandals with magnetic bodies

Abstract

To provide an integrated resin sandal equipped with a magnetic body, which allows the sole of a wearer to be held at the sole part even when walking, keeps firm contact with a magnetic body, and can be used without causing discomfort to the sole. [Solution] An integrated resin sandal (1) equipped with a sandal body (2) consisting of a sole (12) and a bottom (11), an arch body (3) covering the instep in an arch shape from the sandal body (2), and a magnetic body (30) integrally molded therewith, the sandal body (2) having a heel wall (5) rising from the rear edge and a magnetic body storage section (13) in the heel section, with the magnetic body (30) arranged in the magnet storage section (13).

Description

[Technical Field]

[0001] This invention relates to a resin sandal in which the sandal body and arch body are integrally formed and which is equipped with a magnetic body. [Background technology]

[0002] The inventor used foam resin and conducted extensive research into the shrinkage rate during molding. He inserted a mold between the sandal body and the arch body, and then removed the mold using the shrinkage state immediately after molding to create a one-piece resin sandal that creates unevenness on the sole of the foot.

[0003] Sandals equipped with a magnetic body on the sole have existed for some time. The sandal-like footwear described in Patent Document 1 has protrusions on the sole and also has protrusions for locking the magnetic body. Sandals are easy to put on and take off, but the wearer's heels often come off the sole of the foot when walking, which often causes the sole to come off the magnetic body.

[0004] Furthermore, when a magnetic body is placed on the sole of the foot, the wearer may feel uncomfortable when the magnetic body comes into contact with the sole of the foot. Therefore, there has been a demand for sandals that can receive the effects of the magnetic body while reducing this discomfort. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Utility Model Registration No. 3031587 Summary of the Invention [Problem to be solved by the invention]

[0006] Therefore, the purpose of this invention is to provide sandals that can be worn without causing discomfort to the soles of the feet, by keeping the soles of the wearer in contact with the magnetic material even when walking. [Means for solving the problem]

[0007] Therefore, the one-piece resin sandal equipped with the magnetic body of the present invention is a one-piece resin sandal that is integrally formed with a sandal body consisting of a sole and a bottom surface, and an arch body that covers the instep part in an arch shape from the sandal body, The sandal body has a heel wall rising from the rear end edge and a magnetic body accommodating portion in the heel portion, The magnetic body is disposed in the magnetic body housing portion.

[0008] The magnetic body storage section has an opening communicating with the sole of the foot and a wide storage space below the opening, The magnetic body preferably comprises a main body that is accommodated in the accommodation space and is wider than the opening, and a protuberance that protrudes upward from the main body and is exposed on the surface of the sole through the opening.

[0009] It is also preferable that the height of the heel wall rising from the rear edge of the sandal body is formed to the height position of the toe part of the arch body.

[0010] It is also preferable that a plurality of small protrusions with a protrusion height of 1 mm or less are arranged in succession on the sole of the foot, and that the exposed height of the protrusions of the magnetic body exposed from the sole of the foot is equal to or less than the protrusion height of the small protrusions. [Effects of the Invention]

[0011] The invention described in claim 1 makes it possible to provide an integrated sandal that keeps the sole of the wearer's foot in place on the sole portion even when walking, maintaining firm contact with the magnetic body.

[0012] According to the invention described in claim 2, the magnetic body storage section has a storage space that widens from the opening on the sole of the foot, so that only the necessary parts of the magnetic body are exposed from the sole of the foot, and the magnetic body can be held stably without protruding to the outside.

[0013] According to the invention of claim 3, the heel wall that covers the heel of the user from the sandal body and is formed high up to the height of the toe part can firmly hold the heel of the user. This allows the heel to always be in contact with the magnetic body without coming off when the user walks in the sandals, making it possible to provide an integrated sandal that allows the magnetic body to work more effectively.

[0014] The invention described in claim 4 prevents slippage from the sole of the user's foot by forming a continuous series of small protrusions with a height of 1 mm or less on the sole of the foot, while by making the height of the magnetic body equal to or less than the height of the small protrusions, it is possible to provide an integrated sandal that is comfortable to wear and does not feel strange even with the magnetic body in place. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a plan view showing an integrated resin sandal according to an embodiment of the present invention. [Figure 2] FIG. 1 is a front view showing the one-piece resin sandal of the present embodiment, showing the state in which the belt is attached. [Figure 3] 1 shows an integrated resin sandal of this embodiment, where (a) is a left side view of only the toe portion, (b) is a bottom view, and (c) is a right side view of only the heel portion. [Figure 4] 1 is a plan view showing the sole of the one-piece resin sandal of the present embodiment. FIG. [Figure 5] 1A and 1B show a magnetic body of the present embodiment, where FIG. 1A is a front view and FIG. 1B is a perspective view. [Figure 6] 1A shows an integrated resin sandal of this embodiment, where (a) is an end view taken along line AA in FIG. 1, (b) is a partially enlarged end view showing the magnetic body accommodating section of (a), and (c) is a partially enlarged end view showing the state in which the magnetic body has been accommodated from the state of (b). DETAILED DESCRIPTION OF THE INVENTION

[0016] The present invention will be described in detail with reference to the drawings. In this description, the toe portion 3a is the front, the heel portion 5a is the back, and the width direction of the leg is the width direction. Note that this description and the drawings show sandals for the left foot, but the right foot sandals are inverted.

[0017] As shown in Figures 1 to 3, a one-piece resin sandal 1 according to an embodiment of the present invention comprises a sandal body 2 and an arch body 3. The sandal body 2 has a bottom surface 11 on its underside, and a sole 12 with a plurality of small projections 12a on its surface. The arch body 3 has a toe portion 3a located at the front that covers the user's toes. The arch body 3 extends from the toe portion 3a, which will be described later, to cover the sole 22 and the arch 23. The heel portion 5a of the one-piece resin sandal 1 is formed by a side wall 4 that extends from the sandal body 2 and a heel wall 5 that is located behind the heel portion 24.

[0018] The arch body 3 has an arch shape in the toe area 3a that covers the entire toe section 20 and toe base section 21, and ventilation holes 6, 6 that serve as through holes are opened on both sides of the arch body 3. This allows the toes to move freely, improving the fit, and by forming the ventilation holes 6, 6 while making the arch body 3 cover the entire shoe, it is possible to provide a more comfortable sandal that is breathable while protecting the toes.

[0019] Additionally, a belt 7 that can rotate back and forth is positioned along the upper edge of the arch body 3 (see Figure 2). This belt 7 can be rotated to be positioned from the rear edge of the arch body 3 along the upper edge of the heel wall 5, and holds the user's heel not only against the heel wall 5 but also above it, making it possible to achieve a more stable and comfortable fit.

[0020] The heel wall 5 of this embodiment has a predetermined height that continues from the side walls 4, 4 and is high enough to completely cover the user's heel. Specifically, in the front view shown in FIG. 2, the upper edge of the heel wall 5 is positioned at the height of the toe portion 3a (see line BB). Specifically, it is preferably at the same height as or about the same as the toe portion 3a, but may be slightly lower. Forming such a heel wall 5 prevents the user's heel from coming off the sole 12 when the user walks, allowing for more stable use.

[0021] The one-piece resin sandal 1 is manufactured by integrally molding the sandal body 2 and arch body 3 using foam resin. Immediately after molding, the foam resin becomes a size larger than the size it is in when used, and then gradually shrinks. By utilizing this shrinkage, the mold placed on the surface of the sandal body 2 (the sole 12) can be removed to manufacture the one-piece resin sandal 1 having the sole 12 with small protrusions 12a.

[0022] The sole 12 and the small protrusions 12a will now be described. As shown in Figure 3, the sole 12 has a toe portion 20 where the user's toes are located, a toe base portion 21 located behind the toes and rising along the base of the toes, a sole portion 22 located between the toe and a heel portion 24 that comes into contact with the user's heel, and an arch portion 23. The arch portion 23 is formed to rise toward one side wall 4 in the width direction of the sole portion 22.

[0023] The small protrusions 12a formed on the sole 12 are arranged in multiple rows in the toe region 20, sole region 22, arch region 23, and heel region 24. In a 25 cm size, the small protrusions 12a are circular protrusions with a diameter of approximately 2 mm to 5 mm, and are formed higher from the sole 12 toward the center of the circle, with the highest point being 0.2 mm to 1 mm high. More preferably, the small protrusions 12a are circular with a diameter of 3 mm, and are 0.5 mm high from the sole 12 at the highest point in the center of the circle.

[0024] By forming a plurality of small protrusions 12a on the sole 12, the sole of the user's foot can be prevented from slipping off the sole 12, and the foot can be used as an anti-slip device, allowing for stable use.

[0025] Next, the magnetic body 30 and the magnetic body accommodating section 13 will be described. As shown in Fig. 5, the magnetic body 30 of this embodiment has a disk-shaped main body 31, a raised portion 32 that rises conically from the upper surface of the main body 31 with the center of the circle being the highest point, and a recess 33 that is recessed on the lower back surface of the main body 31, with the circular outer edge extending inward from the circular outer edge of the raised portion 32. The magnetic body 30 of this embodiment is formed from a ferrite magnet, but may be made of other magnetic materials.

[0026] 1 and 3, as well as FIG. 6, the sole 12 on which a plurality of small protrusions 12a are arranged has no small protrusions 12a arranged at the center of the heel portion 24, where a circular frame 13a is formed, and the interior of the circular frame 13a is hollow to form a magnetic body accommodating portion 13 having an accommodating space 13d. An opening 13b is formed in the center of the circular frame 13a so as to communicate with the magnetic body accommodating portion 13, and inside the magnetic body accommodating portion 13 is formed a circular protrusion 13c that can engage with the recess 33 of the magnetic body 30. In this way, there is a portion between the opening 13b and the circular frame 13a where no small protrusions 12a are arranged.

[0027] When the magnetic body 30 is accommodated in the magnetic body accommodating section 13, the circular protrusion 13c of the magnetic body accommodating section 13 and the recess 33 of the magnetic body 30 engage with each other, and the magnetic body is accommodated in the accommodation space 13d so that the surface of the magnetic body accommodating section 13 closer to the center than the circular frame 13a abuts against the upper surface of the main body 31 of the magnetic body 30 and part of the raised portion 32. In this state, the top of the raised portion 32 is formed so as to be exposed from the sole 12 by the opening 13b.

[0028] The highest exposed peak of the protrusion 32 is within 0.5 mm of the position along the surface of the sole 12. In other words, the peak of the protrusion 32 is not positioned higher than the small protrusions 12a, and the peak of the protrusion 32 is rounded rather than angular. This makes the peak the same height as or lower than the small protrusions 12a that have anti-slip properties, and allows for comfortable use without being different from other small protrusions, making it possible to use the protrusions without feeling uncomfortable even when subjected to the action of a magnetic body.

[0029] The small protrusions 12a and the top of the raised portion 32 are at about the same height, and the small protrusions 12a are not positioned between the opening 13b where the raised portion 32 is exposed and the circular frame 13a. This eliminates the sense of incongruity felt by the magnetic body 30, while allowing the user to sense the position of the magnetic body 30 by eliminating the small protrusions 12a around the exposed magnetic body 30.

[0030] Furthermore, the one-piece resin sandal of this embodiment is formed so that the heel portion 5a is higher than the toe portion 3a, so that when the user walks in the sandal, the heel of the user is less likely to come off the sole 12 and is always in contact with the sole. By providing the magnetic body 30 in the heel portion 24 of the sole 12 in this configuration, it is possible to stably receive the action of the magnetic body.

[0031] Furthermore, since the magnetic body 30 is housed in the magnetic body housing portion 13, the magnetic body 30 does not come off unexpectedly during use, and the magnetic body can be stably affected by the magnetic force.

[0032] In this embodiment, the magnetic body 30 is accommodated in the magnetic body accommodating portion 13 located in the center of the heel portion 24, but the present invention is not limited to this. Instead of or in addition to the heel portion 24, the magnetic body 30 may be arranged in the arch portion 23 or the sole portion 22. [Explanation of symbols]

[0033] 1...One-piece resin sandal, 2...Sandal body, 3...Arch body, 3a...Toe part, 4...side wall, 5...rear wall, 5a...heel portion, 6...ventilation hole, 7...belt portion, 11...plantar surface, 12...sole surface, 12a...small protrusion, 13...magnetic body accommodating portion, 13a...circular frame, 13b...opening, 13c...circular protrusion, 13d…containment space, 20...toe part, 21...toe part, 22...sole part, 23...arch part, 24...heel part, 30...magnetic body, 31...main body, 32...protrusion, 33...recess.

Claims

1. An integrated resin sandal in which a sandal body consisting of a sole and a bottom surface and an arch body covering an instep part in an arch shape from the sandal body are integrally molded, The sandal body has a heel wall rising from the rear end edge and a magnetic body accommodating portion in the heel portion, An integrated resin sandal with a magnetic body, characterized in that the magnetic body is disposed in the magnetic body storage section.

2. The magnetic body storage section has an opening communicating with the sole of the foot and a wide storage space below the opening, The one-piece sandal with a magnetic body according to claim 1, characterized in that the magnetic body comprises a main body that is accommodated in the accommodation space and is wider than the opening, and a raised portion that protrudes upward from the main body and is exposed on the surface of the sole through the opening.

3. 3. The one-piece sandal with magnetic body according to claim 2, wherein the height of the heel wall rising from the rear end edge of the sandal body is formed to the height position of the toe part of the arch body.

4. The one-piece sandal with a magnetic body according to claim 2 or 3, characterized in that a plurality of small protrusions with a protrusion height of 1 mm or less are arranged continuously on the sole of the foot, and the exposed height of the protruding portion of the magnetic body exposed from the sole of the foot is equal to or less than the protrusion height of the small protrusions.

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