JP2004329516A - Footwear - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a both-directional footwear provided with an upper which has high shape restoring force. <P>SOLUTION: Both of the lower ends of the upper 2 are inserted and fixed between a main bottom 1a and an upper sheet 1b laminated on the main bottom. The lower parts of the upper 2 are fitted into notches 5 formed at the side surfaces of the upper sheet 1b and fixed closely to the whole surfaces of the notches 5. The lower parts of the upper 2 are made to be flush with the side surfaces of a bottom body 1 to be stood at a right angle from the bottom body 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to footwear such as sandals, slippers, clogs, etc., which can be worn without distinction in the front-rear direction.
[0002]
[Prior art]
Conventionally, footwear such as sandals, slippers, clogs, etc., has to be changed if the direction of the mouth is reversed when wearing it, or the body must be turned, which is annoying. won.
[0003]
Therefore, a shoe that can be worn in both directions that can be worn without distinction in the front-rear direction is disclosed (see Patent Document 1). In the footwear described in the publication, the pedestals for the left foot and the right foot of the footwear have dimensions and shapes that can be worn from either the front or the back of the footwear, and the instep is provided at a predetermined position on the pedestal from either the front or the back of the footwear. Two sets of shackle belts are attached at substantially symmetrical positions in the front and rear so that the front and rear sides can be distinguished. If the instep of one of the two sets of shackle belts is stabbed from either the front or the back of the footwear, the user can walk forward. At that time, the remaining pair of shackle belts are curved and depressed substantially below the arches on the soles, so that walking is not hindered. Then, if the user tries to wear the footwear again from the opposite direction while taking off the footwear, the usage of the two sets of shackle belts may be reversed, and it is not necessary to change the direction of the footwear one by one.
[0004]
[Patent Document 1]
JP-A-11-89602 (paragraph 0012)
[0005]
[Problems to be solved by the invention]
As described above, when putting on the footwear, the foot is inserted into the opening of one shackle belt (upper), and the heel is placed on the other upper. The other upper is crushed by the heel and crushed, but the opening for the upper foot needs to be largely opened in an arch shape so that the upper can be easily worn when worn again. Therefore, the upper is required to have a shape restoring property, and a material having the shape restoring property is used as the material.
[0006]
Here, as shown in FIG. 12, a method of attaching the upper 2 to the bottom body is an outer sewing type in which the upper 2 is overlapped on the upper surface of the bottom body 1 with the edges aligned and the ends are fixed by sewing or bonding. As shown in FIG. 13, the bottom body 1 is composed of an outsole 1a and an overlay 1b, and the end of the upper 2 is sandwiched and fixed between the outsole 1a and the overlay 1b. There is a type.
[0007]
However, in the case of the outer sewing type, since the end of the upper 2 is overlapped with the bottom 1 in parallel, the upper 2 is easy to sleep, and it is difficult to form the arch shape of the opening of the upper 2. Also, in the case of the suspension type, since the end of the upper 2 is merely sandwiched between the outsole 1a and the overlay 1b, the lower portion of the upper 2 cannot be formed so as to rise upward. Therefore, the upper 2 loses its shape, and it is difficult for the central portion of the upper 2 to rise, and it is difficult to form an arch shape of the foot opening of the upper 2. Therefore, even if the upper 2 is made of a material having a shape restoring property, the arch shape of the upper 2 cannot be sufficiently formed, and it is difficult for the upper 2 to be inserted into the opening of the upper 2 when worn.
[0008]
In view of the above, an object of the present invention is to provide a bidirectional shoe that is easy to wear by enhancing the shape restoring property of the upper.
[0009]
[Means for Solving the Problems]
The present invention is a footwear that has shape restoring properties on both sides in the front-rear direction of the bottom body and can be worn in both directions, provided with an upper covering the instep, and the upper is provided on a side surface of the bottom body. The lower part of the upper is flush with the side of the bottom body and rises straight from the bottom body.
[0010]
The upper may cover the entire instep of the foot (that is, the portion from the ankle to the toe) or may be a belt that covers a part thereof. The lower part of the upper is fitted into the notch so that it rises straight from the bottom. The upper hardly falls down, the arch shape is easily formed, and the shape restoring property can be improved.
[0011]
The notch is a recess formed on the side surface of the bottom body, and is formed according to the shape of the lower portion of the upper. Further, the notch may be formed from the upper end to the lower end of the side surface of the bottom body to an intermediate position, but is preferably formed to a position at least half the thickness of the bottom body. This lengthens the straight upright portion of the upper. It is preferable to form a notch from the upper end to the lower end of the side surface of the bottom body.
[0012]
In order for the lower portion of the upper to rise straight from the bottom body, the side surface of the notch may be substantially perpendicular to the horizontal plane, but is not limited thereto.
[0013]
The lower part of the upper is fixed to the entire surface of the notch. Since the contact area is large, the upper hardly comes off. Therefore, the arch shape of the upper does not easily become out of shape, and the uprightness of the lower portion of the upper can be ensured. Thereby, shape resilience can be improved. In addition, by fitting the lower part of the upper into the notch, the opening of the upper, which is a part for inserting a foot, is slightly narrower than the width of the bottom body. Therefore, the upper can be fitted to the foot, the holdability is enhanced, and the foot is unlikely to shift to the front, rear, left and right. The upper and the notch may be fixed via an intervening object. Further, as the fixing means, various means such as adhesion, welding, fixing with a pin or metal fittings can be used.
[0014]
Furthermore, the lower part of the upper is flush with the side surface of the bottom body. It has excellent appearance and is not bulky when stored. In order to make the lower portion of the upper and the side surface of the bottom body flush, the thickness of the lower portion of the upper (if there are inclusions, the thickness of the addition of the thickness) and the depth of the notch may be substantially the same. However, the present invention is not limited to this.
[0015]
The upper may be simply fixed to the notch, but the bottom body is composed of the outsole and the upper layer laminated on it, and the lower ends of the upper are fixed by sandwiching both lower ends between the outer layer and the upper layer I do. The lower part of the upper is fitted into a notch provided on the side surface of the overlay, as described above. The lower end of the upper is firmly fixed to the bottom body by sandwiching both lower ends of the upper between the outsole and the overlay. Therefore, even when a load in the left-right direction is applied, the upper hardly comes off.
[0016]
The overlay is thicker than the outsole. This increases the vertical surface of the notch, so that the upright portion of the upper that comes into contact with the notch also becomes longer. Therefore, the uprightness of the upper can be ensured.
[0017]
A ridge is formed in the center of the bottom body upper surface near the inside. The raised portion may be formed integrally with the upper surface of the bottom body, or may be formed separately and fixed to the upper surface of the bottom body. The shape of the raised portion is not particularly limited as long as it is a convex body, but the height and the like may be set according to the purpose. When worn, the ridge hits the arch of the foot. If the purpose is to reduce the displacement between the front and rear of the foot, the height may be such that the foot is scratched. In addition, when the purpose is to press the arch, the height may be such that the arch can be pressed.
[0018]
The bottom body is curved toward the outer surface side and is symmetrical in the front-rear direction. Therefore, the bottom body has a substantially rectangular shape in plan view, and can be worn by either the right foot or the left foot without discomfort. Note that the outer side surface is a side surface opposite to a surface on which one footwear is opposed to the other footwear when two sets of the above footwear are worn as one set. In addition, since the front half and the rear half of the bottom body are symmetrical, they may be worn from either front or rear direction.
[0019]
The bottom surface of the bottom body is flat, but the bottom surface of the bottom body may be formed so as to gradually rise from the center to both sides in the front-rear direction. When the toes are warped up as described above, it becomes easy to kick out during walking, so that it is easy to walk, and since the toes are hard to catch on the ground and obstacles, it is hard to trip. Further, when the footwear is placed, only the central portion of the bottom body in the front-rear direction is in contact with the ground, so that the footwear rotates around the ground contact surface. For example, when the footwear is inclined with respect to the user, the direction can be easily corrected in the front-rear direction by rotating the footwear by slightly pushing the front and rear ends sideways.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a perspective view of the shoe, FIG. 2 is a sectional view of the shoe, FIG. 3 is an exploded sectional view of the sole, FIG. 4 is a plan view of the sole, FIG. 5 is a side view of the sole, and FIG. It is a figure showing the state where footwear was worn. The shoe includes a sole 1 and uppers 2 provided on both sides of the sole 1 in the front-rear direction.
[0021]
The bottom body 1 includes an outsole 1a and an overlay 1b laminated thereon, and the overlay 1b is formed thicker than the outsole 1a. Both 1a and 1b are fixed by adhesion. EVA (ethylene-vinyl acetate copolymer resin) foam is used as the material of the outsole 1a and the overlay 1b. In addition, soft or semi-hard synthetic resin materials such as vinyl chloride resin and polyurethane resin, and foams of synthetic resin are used. Lightweight and cushioning, that is, various materials with cushioning properties, such as composites, fibrous materials, natural leather, and semi-rigid rubbers, which are made by encapsulating the body, and also the synthetic resin foam core with a flexible soft synthetic resin film Materials can be used.
[0022]
The outsole 1a and the overlay 1b have the same shape in plan view. The left and right side surfaces of the outsole 1a and the overlay 1b are curved. The outer side surface 1c is convex toward the outer side, and the inner side surface is concave in the same direction. Therefore, the bottom body is formed in a substantially rectangular shape and is symmetrical in the front-rear direction. The top and bottom surfaces of the outsole 1a and the overlay 1b are flat surfaces. The overlay 1b is formed thicker than the outsole 1a.
[0023]
In addition, the raised portion 3 is formed at a central position near the inner side of the upper surface of the bottom body 1, that is, at a position corresponding to the arch. The raised portion 3 is formed in a substantially crescent shape along the side edge of the bottom body 1. Note that the shape of the raised portion 3 is not limited to this, and may be another shape such as a substantially hemispherical shape. The height of the raised portion 3 is not limited, but is substantially the same as the depth of the arch. The surface is preferably smooth with no corners so that the sole of the foot does not feel uncomfortable. When worn, the raised portion 3 hits the arch, so that the displacement of the front and rear of the foot can be reduced. In addition, a shallow depression 4 corresponding to a portion up to the first joint of the toe is formed on the upper surface of the overlay 1b. The five recesses 4 are formed from the thumb to the little finger, and are formed both on the front and rear of the bottom body. Since the toe fits into the recess 4, the foot is unlikely to shift back and forth.
[0024]
As shown in FIGS. 3, 4 and 5, cutouts 5 are formed on both left and right side surfaces of the overlay 1b. The notch 5 has substantially the same dimensions as the width and thickness of the lower part of the upper 2 and is formed from the upper end to the lower end of the overlay 1b. As will be described later, since the lower part of the upper part 2 on the front side and the lower part of the upper part 2 on the rear side are formed so as to be in contact with each other, the cutouts 5 on the front side and the rear side are formed continuously. The cutout surface 5a is made substantially perpendicular to the horizontal plane.
[0025]
The upper 2 is formed in a belt shape and has a shape extending toward both lower ends thereof. The lower part of the upper 2 is long in the front-back direction. The upper part 2 on the front side and the upper part 2 on the rear side are continuous, and an impression like one upper as a whole is obtained. Further, the shapes of the front and rear uppers 2 are the same. Therefore, since only one mold is required, the manufacturing cost can be reduced.
[0026]
As a material of the upper 2, a mixture of an EVA foam and a synthetic rubber is used, but a soft synthetic resin material, a soft synthetic resin foam core material is covered with a flexible soft synthetic resin film. Various materials can be selected as long as they have shape resilience, flexibility, and light weight, such as composite materials, fibrous materials, natural leather, and soft rubber materials. The shape restoring property and the flexibility are preferably such that the heel and the upper can be pushed toward both sides when worn, and the arch shape of the upper 2 can be restored when the footwear is taken off.
[0027]
The upper 2 may be used as it is, but if a cloth is stuck on its surface, the aesthetics can be enhanced. In addition, slippage is improved, and the foot can be easily inserted into footwear. Furthermore, if a yarn having antistatic properties is used for the cloth, static electricity generated in the human body when wearing footwear can be prevented.
[0028]
As shown in FIG. 2, in assembling the footwear, first, both lower ends of the upper 2 are adhered to the bottom surface of the overlay 1b, and the lower portion of the upper 2 is adhered to the entire surface of the notch 5 of the overlay 1b. The upper 2 is attached to both sides in the front-rear direction. Then, the footwear is completed by fixing the bottom surface of the overlay 1b and the outsole 1a by bonding.
[0029]
Two pieces of footwear having the same configuration are prepared and used as a set, with the outer surface 1c facing each other. As shown in FIG. 6, when viewed from the user, a toe is put into the opening of the front upper 2, and the rear upper 2 is worn by stepping on the heel from above. Also, when the user intends to wear from the opposite side, the user can wear it on the opposite foot in the same manner. Therefore, since the user can wear the shoes regardless of the front-back direction, the trouble of changing the direction of the footwear can be eliminated.
[0030]
According to the above configuration, in the present footwear, the lower portion of the upper 2 is fixed to the notch perpendicular to the horizontal plane, so that the lower portion of the upper 2 rises straight from the bottom 1. Therefore, the upper 2 is less likely to tilt or fall down, easily form an arch shape, and easily insert a toe of a foot into the opening of the upper 2. The arch shape can be maintained, and the shape restoring property can be improved.
[0031]
Further, since the lower portion of the upper 2 is fixed to the entire surface of the notch 5, the contact area increases, and the lower portion 1 can be firmly fixed to the bottom 1. Therefore, the state in which the lower part of the upper 2-2 stands upright from the bottom body 1 can be reliably held, and the upper 2 returns to the original state immediately even if it is stepped on. In addition, since the lower part of the upper 2 is fixed to the bottom body 1 with high strength, the upper part 2 is less likely to collapse. Furthermore, since the lower portion of the upper 2 is flush with the side surface of the bottom body 1, the appearance is excellent in aesthetic appearance, and it is not bulky during storage. Also, since the upper 2 does not protrude in the left-right direction, the upper does not catch on the other footwear or obstacles during walking, and the footwear is less likely to be damaged.
[0032]
Note that the present invention is not limited to the above-described embodiment, and it goes without saying that many modifications and changes can be made to the above-described embodiment within the scope of the present invention. For example, in the above-described embodiment, the bottom body 1 is composed of the outsole 1a and the overlay 1b, and both lower ends of the upper 2 are fixed between the outsole 1a and the overlay 1b, but as shown in FIG. Instead of being fixed between the bottom 1a and the overlay 1b, the upper 2 may be simply fitted into the notch 5 provided on the side surface of the bottom body 1. At this time, the bottom body 1 does not have to be configured by being divided into the outsole 1a and the overlay 1b. Other configurations are the same as in the above embodiment. As in the above embodiment, the lower portion of the upper 2 can be made to rise straight from the bottom body 1, so that the shape restoring property of the upper 2 can be enhanced.
[0033]
Further, in the above embodiment, the lower part of the upper 2 is fixed by sandwiching the lower part between the outsole 1a and the overlay 1b. However, as shown in FIG. Alternatively, the lower end of the upper 2 may be pushed into the notch to pinch it. Since the lower part of the upper 2 is firmly fixed to the bottom body 1, the upper does not easily come off even when a load in the left-right direction is applied.
[0034]
Moreover, in the said embodiment, although the upper surface and the lower surface of the outsole 1a and the overlay 1b were made into a flat surface, as shown to FIG. 9-FIG. It may be formed to be thinner and to be warped at both ends. Furthermore, the thickness of both sides in the left-right direction of the overlay 1b may also be made thinner than the thickness of the central portion so that both ends are warped. The thickness of the outsole is made uniform in the front, rear, left and right directions. Therefore, the hanging position of the center of gravity of the footwear is the most raised contact surface 1d of the bottom surface of the sole body 1. The grounding surface 1d is grounded, and can be turned with a small force around the grounding surface 1d.
[0035]
Further, the thickness of the outsole 1a may be changed instead of the thickness of the overlay 1b. That is, the thickness of both sides in the front-rear direction of the outsole 1a is made thinner than the thickness of the central portion so that both ends are warped, and the thickness of both sides in the left-right direction is also larger than the thickness of the central portion. Make it thin and make both ends warp.
[0036]
In addition, the warpage of both ends in the front-rear direction and the left-right direction of the overlying 1b (or the outsole 1a) is made such that the thickness of the overlying 1b (or the outsole 1a) is the same, and the central part protrudes as a whole in the fore-and-aft and left and right directions. As described above, by curving toward the lower surface side, both ends in the front-rear direction and the left-right direction may be warped.
[0037]
【The invention's effect】
As is clear from the above description, according to the present invention, the lower part of the upper is fitted into the notch and is made to rise straight from the bottom body, so that the upper is less likely to tilt or fall, forming an arch shape. It is easy to improve shape resilience. Further, since the lower portion of the upper is fixed to the entire surface of the notch, the contact area increases, and the upper is less likely to come off the bottom. Therefore, the uprightness of the lower part of the upper can be ensured, and the shape restoring property can be further improved.
[Brief description of the drawings]
FIG. 1 is a perspective view of the shoe. FIG. 2 is a sectional view of the shoe. FIG. 3 is an exploded sectional view of the bottom. FIG. 4 is a plan view of the bottom. FIG. 5 is a side view of the bottom. FIG. 7 is a cross-sectional view of footwear of another embodiment. FIG. 8 is a cross-sectional view of footwear of another embodiment. FIG. 9 is a cross-sectional view of footwear of another embodiment. 10: Exploded cross-sectional view of footwear of another embodiment [FIG. 11] Side view of footwear of another embodiment [FIG. 12] Cross-sectional view of conventional footwear [FIG. 13] Cross-sectional view of conventional footwear [Description of reference numerals]
DESCRIPTION OF SYMBOLS 1 Bottom body 1a Outsole 1b Overlay 1c Outer side surface 2 Upper 3 Raised part 4 Depression 5 Notch 5a Notch surface

Claims (5)

On both sides in the front-rear direction of the bottom body, it is shape-recoverable, and it is a footwear that can be worn in both directions and has an upper that covers the instep, and the upper is fitted into a notch provided on a side surface of the bottom body. The footwear is characterized by being fixed to the entire surface of the notch, the lower part of the upper being flush with the side of the bottom, and rising straight from the bottom. On both sides in the front-rear direction of the bottom body, it has shape resilience, it is a footwear that can be worn in both directions provided with an upper covering the instep, wherein the bottom body is laminated with an outsole. The lower end of the upper is fitted into a notch provided on a side surface of the upper layer, and both lower ends of the upper are sandwiched and fixed between the outsole and the upper layer. Footwear characterized in that it is fixed in close contact, the lower part of the upper is flush with the side of the bottom, and rises straight from the bottom. On both sides in the front-rear direction of the bottom body, it has shape resilience, it is a footwear that can be worn in both directions provided with an upper covering the instep, wherein the bottom body is laminated with an outsole. The upper is made thicker than the outsole, the lower ends of the upper are sandwiched and fixed between the outsole and the upper, and the lower part of the upper is provided on a side surface of the upper. Footwear which is fitted into the notch and fixed in close contact with the entire surface of the notch, the lower portion of the upper is flush with the side surface of the bottom, and rises straight from the bottom. On both sides in the front-rear direction of the bottom body, it has shape resilience, it is footwear that can be worn in both directions provided with an upper covering the instep, wherein the bottom body curves toward the outer surface side, and The bottom surface of the bottom body is formed so as to gradually rise from the center to both sides in the front-rear direction, and the upper is fitted into a notch provided on the side surface of the bottom body, and is formed over the entire surface of the notch. Footwear that is fixed, the lower part of the upper is flush with the side of the bottom body, and rises straight from the bottom body. The footwear according to any one of claims 1 to 3, wherein a raised portion is formed at a center near an inner side of the upper surface of the bottom body.

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