KR100731793B1 - Lower structure of footwear - Google Patents

Abstract

A lower structure of shoes is provided to absorb impact and pressure generated when a user walks on the ground by letting the user walk with rolling back and forth. The lower structure of shoes is composed of a midsole(10) having a body(12) of which the upside is flatly formed to support the sole of the foot and at least one support projection(13) protruded downward in the lower center of the body; buffer members(21,22) combined to both lower sides of the front and rear parts of the midsole about the support projection and provided with recessed parts(21a,22a) with an opened inner upside; a support plate(11) contained in the body of the midsole to secure predetermined strength enough to support or hold the midsole; and a cover member(30) covering the lower part of the buffer member joined to the front and rear ends of the midsole about the support projection. Plural vent holes(11a,12a) vertically perforated are formed on the tiptoe and heel parts of the body and the outer sides thereof along an inner periphery of the midsole. The buffer member is formed in the shape corresponding to the bottom side of the midsole. An elastic unit is installed in the open recessed part.

Description

Lower Structure of Footwear

1 and 2 are views showing an example of a conventional shoe undercarriage,

3 and 4 show another example of a conventional shoe undercarriage,

5 is an exploded perspective view showing a configuration of a shoe lower structure according to the present invention;

Figure 6 is a side view showing a coupling state of the shoe lower structure according to the invention,

7 is a longitudinal sectional configuration view showing a first embodiment of a shoe undercarriage according to the present invention;

8 is a cross-sectional configuration diagram in FIG. 7;

9 is a longitudinal cross-sectional view showing a second embodiment of a shoe undercarriage according to the present invention;

10 is a cross-sectional configuration diagram in FIG. 9;

11 is an exploded view showing another embodiment of a shoe undercarriage according to the present invention;

12 is a cross-sectional view of the coupled state of FIG.

* Explanation of symbols for main parts of drawings *

10,10 ': Mid Soul 11: Support Plate

11a, 12a, 12c: vent 12: main body

12b: insertion groove 13: support protrusion

21, 22: buffer member 21a, 22a: opening recess

21b, 22b: Upper part of circumference 21c, 22c: Perimeter side

30: cover member

The present invention relates to a shoe undercarriage, and more particularly, to a shoe undercarriage for absorbing the shock and pressure generated when walking on the ground while wearing shoes and improving breathability to maintain foot health.

The shoe undercarriage constitutes the bottom portion of the shoe, and its cushioning ability and breathability are very important in order to absorb the shock applied to the foot and maintain the foot's health in the installation position.

Conventional shoe undercarriage in contrast to the present invention is the Republic of Korea Patent No. 638398 shown in Figures 1 and 2 (2006.10.18 characters registered, the name of the invention: the shoe sole).

Patent No. 638398 relates to a sole in which the front and rear bottoms are inclined upward and the bottom of the sole is formed in a circular arc shape, and a hard midsole is embedded in the sole of the sole, such as a sponge in the heel portion of the sole. A soft material is attached to the oval cushion rolling window to absorb the shock generated when the heel hits the ground while walking the cloud, and the inner and front of the cushion rolling window is embedded with a round plate spring to cushion the cushion. The recovery speed of the rolling window is compressed and expands quickly to provide a cushioning effect, and a waterproof cover is installed on the outer surface of the cushion cloud window to prevent water from penetrating into the cushion cloud window made of water-soakable material. It is.

Looking at the configuration of the sole with reference to Figure 1a and Figure 1b, the front and rear bottom surface is inclined upwards, the hard midsole 30 is embedded in the interior of the sole 10 is formed in an arc shape, the bottom of the sole 10 The non-slip window 40 is attached to the entire bottom surface, and the arc-shaped cutout part 11 is formed at the rear lower side of the shoe sole 10. Arc shaped slitting portion (11) is softer than the shoe sole (10) is attached to the cushion cloud window 20 formed in an elliptical shape, non-slip on the entire bottom surface of the shoe sole 10 including the bottom of the cushion cloud window (20) The window 40 is attached and installed. In addition, the cushion cloud window 20 is provided with a waterproof cover (not shown) on the entire outer surface, a pair of leaf springs 22 made of a metal plate facing each other in the front and rear of the cushion cloud window 20 in the front and rear directions. Buried

On the other hand, the hard midsole 30 is formed to be bent in an arc shape in the shape of the shoe sole 10, as shown in Figures 2a and 2b, the front is formed thin, reinforcement ribs 33 on the upper surface of the bent waist portion Is formed, and the uneven surface 31 and the through hole 32 are formed in the upper and lower whole surfaces of this hard midsole 30. In addition, both sides of the toe corresponding position of the front side is formed in the transverse direction cut portion 34 is formed between the elastic support portion 35 between the cut portion (34).

From the above configuration, Patent No. 6,38398 forms an arc extremity on the rear lower side of the sole of the sole, which is formed in a circular arc shape on the bottom, and is formed in an oval shape on the arc extremity and is made of a softer material than the sole of the shoe. By attaching a window, absorbing the impact force on the heel and effectively making a cloud step, the hard midsole is firmly embedded in the sole of the shoe, so that the sole is cut without separating the sole and hard midsole. Toe movement can provide a comfortable effect.

In addition, as another conventional shoe undercarriage structure in contrast to the present invention, Korean Patent No. 603062 shown in FIGS. 3 and 4 (registered on July 12, 2006, title of the invention: a shoe sole formed with an arc bottom) is have.

Patent No. 603062 relates to a shoe sole in which the front and rear bottoms of the sole are inclined upward, and the bottom of the sole is formed in a circular arc shape as a whole. The circular bottom shape of the sole has a shape in which a plurality of circular arcs are continuously connected. By forming it, the bent line part formed at the part where the arc is connected to the arc is projected more than the arc part like the bark of bamboo. By stimulating acupuncture points continuously, the soles of the feet can be rhythmically stimulated.

Looking at the configuration of the shoe sole with reference to Figure 3, the front and rear bottom surface is inclined upward, the sole sole 10 is formed in a circular arc shape as a whole, the non-slip sole 20 is attached to the bottom of the shoe sole 10, the shoe On the bottom of the sole 10, a plurality of concave circular arc portions 11 formed in an arc shape are continuously connected to each other, and a concave arc portion 11 angled downward to a portion where the concave circular arc portions 11 and the concave circular arc portions 11 are connected ( 12) are formed respectively.

The non-slip window 20 has a plurality of convex arc portions 21 corresponding to the concave arc portions 11 and a bent groove portion 22 corresponding to each of the fold lines 12 formed on the upper surface thereof. As shown in the figure, unevenness is formed to prevent slipping as a whole.

From this configuration, Patent No. 603062 is formed such that the portion of the bent line formed at the portion where the arc is connected to the arc is formed to protrude more than the arc portion, like a bark of bamboo. Acupressure effect to continuously stimulate a number of distributed acupuncture points, and it is possible to provide an excellent exercise effect according to the posture correction and walking by the sole formed in a circular arc shape bottom.

However, looking at the structure of the sole shown in Figures 1 to 4 is made of a structure that does not have a large amount of air flow between the shoe sole and the inside of the shoe has a disadvantage that can be odor due to the sweat on the foot when worn for a long time.

Further, from the structure of the shoe soles shown in Figures 1 to 4 there is a problem that the space for inserting the elastic means can not only be located on the heel side, there is a restriction to increase the cushioning force for the entire shoe.

The present invention has been invented to solve the above conventional problems, by forming a round structure rounded the bottom surface including the heel portion and heel portion of the shoe to enable the rolling movement in the front and rear direction user It is an object of the present invention to provide a shoe undercarriage capable of absorbing the maximum impact and pressure generated when walking on the ground.

It is another object of the present invention to provide a shoe undercarriage that enables smooth air communication inside the shoe, and prevents sweat from occurring on the foot, thereby maintaining foot health.

Still another object of the present invention is to provide a shoe lower assembly which can be more easily assembled and also provide acupressure effect on the sole.

The present invention for achieving the above object is a shoe lower structure rounded in the front and rear direction to enable the rolling motion when walking shoes, the main body is provided with a generally flat upper surface to support the sole, And a mid soul having at least one support protrusion protruding downward from the lower center of the main body. A buffer member which is coupled to both lower portions of the front and rear sides of the mid soul around the support protrusion, and has a recessed portion having an inner upper portion thereof open; A support plate accommodated in the body of the mid soul and having a predetermined strength to support or maintain the mid soul; And a cover member covering a lower portion of the buffer member coupled to the front and rear lower ends of the mid soul around the support protrusion, wherein the mid soul is a heel and heel portion of the main body and an outer side of the mid soul. It has a plurality of upper and lower through-holes along the inner circumference, the buffer member is formed in a shape corresponding to the bottom surface of the mid soul, and a predetermined elastic means is provided inside the opening recess.

In one embodiment of the present invention, the mid soul is provided with an insertion groove into which the support plate is inserted into the upper surface of the body, and the insertion groove has a front heel and a heel portion, and the inner periphery of the insertion groove to the outside thereof. Therefore, it has a plurality of upper and lower through-holes, it can be configured to include a plurality of up and down through-holes formed along the inner circumference of the body in the outward direction of the insertion groove.

In addition, in the shoe undercarriage of the present invention, the support plate includes a plurality of upper and lower perforated vents formed along the inner circumference of the support plate in the heel and heel portion, and their outward direction, the support protrusion Is formed across the main body in the width direction of the mid soul and concentrates downwardly from the front and rear of the main body toward the lower center of the mid soul to support the weight of the user and at the same time to pressurize the center of the sole where the acupuncture points are concentrated. It can be configured in a curved form.

On the other hand, the mid soul and the buffer member is configured to selectively include the material from the polyurethane, pylon and elastic rubber, the material of the support plate optionally comprises a predetermined plastic material including a metal material or PVC, the elastic means The silver is preferably composed of polyurethane, pyron, ethylene vinyl acetate copolymer (EVA), elastic rubber, and is preferably configured to have a plurality of upper and lower through holes as it is.

In addition, a plurality of spring members may be employed as the elastic means.

In the present invention, the opening recess is provided in a form in which mutually opposing surfaces are open to be coupled to both sides of the support protrusion, the upper end of the circumference of the buffer member is in close contact with both curved surfaces of the support protrusion. It is preferably configured in a curved structure, and the buffer member is preferably formed in a pleated structure of the upper and lower sides of the circumference thereof.

In another embodiment, the present invention may further include midsoles and insoles on the upper surface of the body of the mid soul, wherein the midsoles and insoles are in the heel and heel portions, and in the outward direction of the midsoles and insoles. It may be provided with a plurality of upper and lower through-holes each along the circumference.

In the above configuration, the present invention can communicate with each other even in the state in which the midsole and the insole is coupled to enable a smooth air flow inside the shoe, thereby preventing the user's feet from sweating foot You can stay healthy.

Hereinafter, with reference to the accompanying drawings will be described the most preferred embodiment of the present invention.

Figure 5 is an exploded perspective view showing the configuration of the shoe lower structure according to the present invention, Figure 6 is a side view showing a coupling state of the shoe lower structure according to the present invention.

The present invention is based on enabling the cloud movement when walking shoes, for this purpose, it is preferable that the bottom portion of the shoe lower structure is formed in a rounded structure in the front and rear direction.

According to FIG. 5, the shoe undercarriage of the present invention includes a mid soul 10 having a generally flat top surface to support the sole. The main body 12 of the mid soul 10 has a plurality of vent holes 12a vertically penetrated to provide a breathable structure for the sweaty toe and heel portions. These vent holes 12a, preferably including the heel portion and the heel portion of the main body 12 may be formed to penetrate up and down along the inner circumference of the mid soul 10 on the outside thereof.

The mid soul 10 supports at least one support protrusion 13 protruding downward from the lower center of the main body 12 in order to support the weight of the user and at the same time to provide the pressure of the sole of the sole where the acupuncture points are concentrated. It includes. The support protrusion 13 is formed across the main body 12 in the width direction of the mid soul 10, and more preferably, the front and rear of the main body 12 toward the lower center of the mid soul 10. It has a curved shape concentrating downward from.

In addition, the spaces generated at both lower sides of the front and rear sides of the mid soul 10 around the support protrusions 13 are filled with predetermined buffer members 21 and 22, and the buffer members are supported with the support protrusions 13. It may be molded integrally or provided by separate attachment and fixing.

The shock absorbing members 21 and 22 will be described later.

A cover member 30 is provided at a lower portion of the buffer member 21 and 22 coupled to the lower end of the mid soul 10 around the support protrusion 13. The surface of the cover member 30 is adhered and fixed to these surfaces while covering the lower end of the support protrusion 13 and the bottom of the buffer members 21 and 22. Both front and rear ends 31 and 32 of the cover member 30 are preferably fixed to each of the front and rear ends of the main body 12 of the mid soul 10, as shown in FIG.

Mid soul 10 in the present invention is preferably composed of a material having a predetermined elasticity, such as polyurethane or pylon. In addition to this, it is also possible to configure using an elastic body such as a rubber.

The mid soul 10 includes a support plate 11 of a predetermined size as shown in FIGS. 5 and 6. The support plate 11 is made of various metal materials or rigid plastic materials including PVC, and supports load while maintaining the appearance of the mid soul 10 against variable impact and pressure transmitted from a user. To help.

In this embodiment, the support plate 11 is preferably provided in a state embedded in the mid soul (10). In addition, the support plate 11 has a plurality of upper and lower vent holes 11a along the inner circumference of the support plate 11 to the heel portion and the heel portion, and the outside thereof, like the mid soul 10. Equipped with.

This configuration enables a smooth flow of air between the ventilation holes 11a and 12a while the user moves the foot, thereby preventing the user from sweating and maintaining foot health.

On the other hand, the above-described buffer member (21) 22 is preferably to have a structure capable of sufficiently absorbing the variable shock and pressure transmitted to the sole when the user moves. To this end, the buffer members 21 and 22 are formed in a shape corresponding to the bottom surface of the mid soul 10, and may constitute a predetermined elastic body as such. In this case, the shock absorbing members 21 and 22 can be made of polyurethane, pyron, ethylene vinyl acetate copolymer (EVA), elastic rubber, or the like.

As illustrated in FIG. 5, the shock absorbing members 21 and 22 in the present invention may be configured to have recessed portions 21a and 22a having an inner upper portion open. In addition, it may be provided in an open form facing each other, preferably to be coupled to both sides of the support projection (13). The opening recesses 21a and 22a of the shock absorbing members 21 and 22 may accommodate various kinds of elastic means, and a detailed description thereof will be described later with reference to FIGS. 7 to 10. Meanwhile, in the case of the buffer members 21 and 22 having the opening recesses 21a and 22a as shown in FIG. 5, the material may be made of polyurethane or pylon.

It is preferable that the upper end portions 21b and 22b of the buffer members 21 and 22 form the adhesion area as large as possible so as to enable a stable coupling to the lower surface of the main body 12 of the mid soul 10. In addition, the upper end portions 21b and 2b of the circumferential portions 21 and 22 of the buffer members 21 and 22 may be formed in a curved structure so that corresponding surfaces may be in close contact with both curved surfaces of the support protrusion 13.

In addition, the circumferential side surfaces 21c and 22c of the shock absorbing member are preferably formed in a corrugated structure (see FIGS. 8 and 10), which is a polyurethane material having elasticity of the shock absorbing members 21 and 22. Or it is made of pylon, etc. If it is configured in the wrinkled form has the advantage that can improve the impact mitigation effect by increasing the elasticity.

Meanwhile, as described above, the present invention is based on providing a shoe lower structure having a rounded bottom portion thereof to enable rolling motion in the front and rear directions when walking shoes, and for this, the shoe of the present invention. The lower structure is preferably such that the front and rear bottom surface is spaced at an angle from the ground. According to FIG. 6, the shoe undercarriage of the present invention preferably has a front inclination angle α of the bottom surface in a range of 5 ° to 30 °, and a rear inclination angle β in a range of 0 ° to 45 °.

Figure 7 is a longitudinal cross-sectional view showing a first embodiment of the shoe underbody structure according to the present invention, Figure 8 is a cross-sectional view of the cross-sectional view of FIG.

As shown, the shoe lower structure of the present invention can be provided in a configuration in which a predetermined elastic means 41, 42 are filled in the inner opening recesses 21a, 22a of the shock absorbing members 21, 22. . In this case, the elastic means may be made of polyurethane, pyron, ethylene vinyl acetate copolymer (EVA), elastic rubber, or the like as described above.

As such, when additional elastic means are built in the shock absorbing members 21 and 22, the shoe lower structure of the present invention can further relieve the impact and pressure transmitted from the user through improved elastic force. .

In addition, when the elastic means 41, 42 is embedded, it is preferable to form vent holes 41a and 42a in the vertical direction on the front surface of the elastic means 41 and 42 as possible. 41a) and 42a may be in communication with the vent holes 11a and 12a formed in the mid soul 10 and the support plate 11, thereby allowing smooth air flow inside the shoe. It is possible to prevent sweating of the user's feet and maintain foot health.

Figure 9 is a longitudinal cross-sectional view showing a second embodiment of the shoe undercarriage according to the present invention, Figure 10 is a cross-sectional cross-sectional view of FIG.

As shown, the shoe lower structure of the present invention may be provided in the form of the spring member 51, 52 in the inner opening recess (21a) (22a) of the buffer member (21) (22).

As such, when the spring members 51 and 52 are additionally installed inside the shock absorbing members 21 and 22, the shoe lower structure of the present invention further increases the impact and pressure transmitted from the user through improved elastic force. It can be mitigated.

Figure 11 is an exploded view showing another embodiment of a shoe undercarriage according to the present invention, Figure 12 is a cross-sectional view of the engagement state of FIG.

As shown, the shoe lower structure of the present invention is configured to accommodate the support plate 11 by forming the insertion groove (12b) on the upper surface of the main body 12 of the mid soul (10 '). The insertion groove 12b is typically configured to have a plurality of upper and lower perforated holes 12c in order to provide a breathable structure for the sweaty heel and the heel portion. In addition, the mid soul 10 'includes a plurality of upper and lower vent holes 12a formed along the inner circumference of the main body 12 in the outward direction of the insertion groove 12b.

The support plate 11 is made of a rigid material such as PVC, as described above, and helps to support the load while maintaining the appearance of the mid soul 10 'against the variable shock and pressure transmitted from the user. Like the mid soul 10 ', the support plate 11 has a plurality of upper and lower vent holes 11a along the inner circumference of the support plate 11 and the heel portion and the heel portion and the outside thereof. Equipped with.

This configuration enables smooth communication of air between the ventilators 11a, 12a, and 12c while the user moves the foot, thereby preventing sweat on the user's foot and maintaining foot health. .

Meanwhile, the buffer members 21 and 22 and the cover member 30 positioned below the mid soul 10 are substantially the same as those of the embodiment of FIG. 5, and thus description thereof will be omitted.

Moreover, in this embodiment, the polyurethane, pyron, ethylene vinyl acetate copolymer (EVA), elasticity as demonstrated in FIG. 7 and FIG. 8 in the inner opening recessed part 21a (22a) of the buffer member 21 (22) Although shown in the form of filling a predetermined elastic means (41) 42 made of a rubber or the like, but not limited to this to accommodate the spring member (51) (52) as shown in Figs. Of course you can.

In addition, in this embodiment, the example which combined the midsole 60 and the insole 70 on the upper surface of the main body 12 of the mid soul 10 'is shown. In this case, the midsole 60 and the insole 70 are similar to the mid soul 10 ', along the inner circumference of the midsole 60 and the insole 70 to the heel portion and the heel portion, and the outside thereof. Each of the plurality of upper and lower vent holes 61 and 71 is provided.

In such a configuration, even when the midsole 60 and the insole 70 are coupled, the respective vent holes 61, 71, 41 a, 42 a, 12 a, 12 c, 11 a can communicate with each other. It is possible to allow a smooth air flow inside the shoe, thereby preventing the user's feet sweat and maintain the foot health.

As described above, the shoe undercarriage of the present invention includes a heel portion and a heel portion, and the bottom surface is rounded to form a round structure, so that when the user walks on the ground, the rolling movement is possible in the front and rear directions, and when moving therefrom. It can absorb the shock and pressure generated as much as possible.

According to the present invention, since the air communication can be made smoothly in the shoe, it is possible to maintain the health of the foot by preventing sweat on the foot.

In addition, the shoe undercarriage of the present invention, from the above-described configuration can be assembled more easily than the conventional structure, and also provides acupressure effect on the sole of the foot can significantly help blood circulation and fatigue recovery.

Claims (13)

A shoe undercarriage with round bottoms rounded forward and backward to allow rolling movement when walking shoes, A mid soul having a main body having an upper surface substantially flat to support the sole of the foot, and at least one supporting protrusion protruding downward from the lower center of the main body; A buffer member which is coupled to both lower portions of the front and rear sides of the mid soul around the support protrusion, and has a recessed portion having an inner upper portion thereof open; A support plate accommodated in the body of the mid soul and having a predetermined strength to support or maintain the mid soul; And It includes a cover member for covering the lower portion of the buffer member coupled to the lower end before and after the center of the support projections, The mid soul has a heel portion and a heel portion of the body, and a plurality of upper and lower perforated vents along the inner circumference of the mid soul on the outside thereof, The cushioning member is formed in a shape corresponding to the bottom surface of the mid soul, the shoe lower structure, characterized in that a predetermined elastic means is provided inside the opening recess. The method of claim 1, The mid soul has an insertion groove into which a support plate is inserted into an upper surface of the main body, and the insertion groove has a plurality of vent holes vertically penetrated along the inner circumference of the insertion groove on the heel and heel portion and the outside thereof. Is formed, the shoe lower structure, characterized in that it comprises a plurality of upper and lower through-holes formed along the inner circumference of the body in the outer direction of the insertion groove. The method according to claim 1 or 2, The support plate is a shoe lower structure characterized in that it comprises a plurality of upper and lower through-holes formed along the inner circumference of the support plate and the heel and heel portion and the outside thereof. The method of claim 3, wherein The support protrusion is formed across the main body in the width direction of the mid soul and from the front and rear of the main body toward the lower center of the mid soul to support the weight of the user and at the same time to press the center of the sole where the acupuncture points are concentrated. Shoe lower structure, characterized in that formed in a curved form concentrating downward. The method of claim 3, wherein The surface of the cover member covers the lower end of the support protrusion and the bottom of the cushioning member while the front and rear both ends of the cover member is fixed to the front end and the rear end of the mid soul, respectively, characterized in that the fixing. The method of claim 3, wherein The material of the mid soul and the cushioning member is a shoe lower structure, characterized in that it comprises selectively from polyurethane, pylon and elastic rubber. The method of claim 3, wherein The material of the support plate is a shoe lower structure, characterized in that it comprises selectively from any plastic material, including a metal material or PVC. The method of claim 3, wherein The material of the elastic means is composed of polyurethane, pyron, ethylene vinyl acetate copolymer (EVA), elastic rubber, and optionally comprises a shoe lower structure, characterized in that it has a plurality of upper and lower through-holes per se. The method of claim 3, wherein Shoe lower structure, characterized in that the elastic means is a plurality of springs. The method of claim 3, wherein The opening recess is provided in a form in which mutually opposing surfaces are open so as to be coupled to both sides of the support protrusion, and the upper end of the circumference of the buffer member has a curved structure so that the corresponding surfaces are in close contact with both curved surfaces of the support protrusion. Shoe underbody characterized in that the. The method of claim 3, wherein The cushioning member is a shoe lower structure, characterized in that the circumferential side of the upper and lower folds structure. The method of claim 3, wherein A midsole and an insole are further provided on the upper surface of the main body of the mid soul, wherein the midsole and the insole each have a plurality of upper and lower perforated tubs along the inner circumference of the midsole and the insole in the outward direction thereof; A shoe undercarriage comprising pores. The method of claim 3, wherein When walking, the bottom surface is rounded so as to enable rolling movement in the forward and backward directions so as to be spaced apart from the ground, and the front inclination angle α is in the range of 5 ° to 30 °, and the rear inclination angle β is 0. Shoe undercarriage, characterized in that the range of ° ~ 45 °.

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