JP5744025B2 - Footwear products - Google Patents

Description

The present invention relates generally to footwear products , and more particularly to insoles for footwear having features that enhance the comfort of the wearer during standing, walking and running.

  Footwear is engineered by the development of an electrodynamic meter that allows researchers to better understand biomechanical effects by measuring the dynamic external force of the human leg in the shoe, especially when the wearer walks or runs. Has developed and advanced significantly. By using this means, many researchers have made technical advances in the mid-sole of shoes. Since the insole primarily serves as a suspension system for the back of the leg and often provides the wearer with both a leg cushion and a stable platform, many prior art techniques provide a spring factor for the insole. We have focused on mitigating the impact associated with striking the leg by diversifying and distributing the impact.

  In my early patent document I describe the discovery of functional hallux limitus, a phenomenon that has not been properly understood so far, and this phenomenon affects most people. It is thought that it exerts. In order to treat functional toe restraint, I have an improved sole design that allows the first metatarsal bone to better perform plantarflex on the thumb and rest of the metatarsal head. Created. As described in the above-mentioned Patent Document 1, plantar flexion efficiently enables the spread of the thumb of the human foot during the human gate cycle. More specifically, according to the prior art document 1, I created a human sole with a small support area substantially just below the location of the first metatarsal head of the wearer's leg. As described in U.S. Patent No. 6,057,049, the first metatarsal when the weight moves from the heel to the first ray by providing a small support area substantially only under the first metatarsal head. Bone head abduction and plantar flexion are facilitated. Thereby, the normal function of the leg for plantar flexion and supination movement is promoted, and the comfort and shock absorption of walking at the time of subsequent heel contact are improved. After my discovery, in order to promote plantar flexion of the first metatarsal head, the midsole has a small support area substantially just below the position of the first metatarsal head of the wearer's leg. Millions of shoes were produced.

US Pat. No. 4,597,195 US Patent Application Publication No. 2011/0023324

  The present invention provides an improved insole that includes a small support area having an asymmetrically formed indentation with a lowest point biased towards the medial center below the first metatarsal head. This unique shape further causes the first metatarsal head to abduct as the wearer moves from mid-stance to propulsion.

  As used herein, the terms “sole” and “inner sole” are used interchangeably. Further, a “sole” or “insole” may be an element that is incorporated into or constitutes an integral part of a footwear product, such as an insole board, or may be inserted into the footwear product after manufacture. It may be a separate element including a removable insole, an aftermarket insole device, or a custom or off-the-shelf leg corrector. The element may also be engraved into the leg support surface of the shoe or formed on the leg support surface.

In one aspect, the improved footwear of the present invention includes a first region that supports the first, second, third, fourth, and optionally fifth metatarsal heads of the leg and surrounds the first region. Having a forefoot section having a second region for at least partially supporting the remaining portion of the shoe. The first region is designed to provide less support than the portion surrounding the second region. In general, the sole is formed of an elastically deformable material in which the first region has a lower modulometer or motion resistance than the second region. In order to further promote abduction, the region of the first region which is only under the first metatarsal head has a recess having an asymmetric shape with respect to the surrounding portion, and the lowest point of the recess Is biased toward the inside of the center. In other words, the indentation has a shallower slope on the outside . This has the effect of abducting the first metatarsal head when the wearer moves from the mid-stance phase to the propulsion phase. The remaining part of the first region is preferably flat.

  In another aspect, the present invention further provides an insole for footwear that can be used alone or in combination with an indentation under the metatarsal bone, as shown and described in my earlier US Pat. Provide improvements. More specifically, we provide high comfort and biomechanical efficiency by providing a leg-supporting upper side with areas of varying hardness that closely match the areas of varying hardness of the back of the wearer's leg Found that can be achieved. When performed properly, the result is a mechanical impedance match between the surface of the wearer's leg and the surface of the insole, thereby minimizing the differential speed between the two surfaces.

  Still other features and advantages of the present invention will be understood from the following detailed description taken in conjunction with the accompanying drawings.

1 is a top view of a shoe sole incorporating an insert according to a first embodiment of the invention for the right foot. FIG. FIG. 3 is a top view showing details of the insert element according to the first embodiment with contour lines of a 0.3 cm layer. It is sectional drawing cut | disconnected along line IIA of FIG. It is sectional drawing cut | disconnected along line IIB of FIG. It is sectional drawing cut | disconnected along line IIC of FIG. It is sectional drawing cut | disconnected along line IID of FIG. It is a top view. FIG. 6 is a transparent perspective view showing details of a portion of a second embodiment of the insert element of the present invention in a contour line of a 0.3 cm layer. It is sectional drawing which shows the 3rd Embodiment of this invention. It is a perspective view of the shoe sole by the 4th Embodiment of this invention.

Referring to FIGS. 1, 1A and 2A-2D of the drawings, footwear made in accordance with the present invention includes a heel section 12, an arch section 14, a forefoot section 16 and a toe corresponding to the wearer's leg portion. It includes a shoe sole (indicated by reference numeral 10) having a section 18. In use, the heel segment 12 is under the heel of the wearer's leg and has an inner region and an outer region indicated at 20 and 22 respectively corresponding to the inner and outer sides of the leg. Similarly, the arch section 14 in front of the heel section 12 is below the arch of the wearer's leg and has an inner region 24 and an outer region 26, respectively. Forefoot segment 16 is located forward of the arch section 14, first, second, third, fourth and so-called foot ball comprising a fifth metatarsal (the ball of the foot shown in M1~M5 in Model ) . The footballs also have first, second, third, fourth and fifth metatarsal heads (N1-N5) associated with the first, second, third, fourth and fifth metatarsals, respectively. First, second, third, fourth and fifth metatarsal bones (PP1-PP5) and associated metatarsals respectively, which are anterior to the first, second, third, fourth and fifth metatarsal heads, respectively. With associated first, second, third, fourth and fifth metatarsal finger joints (not marked) between the head and proximal phalanx. The forefoot segment 16 is divided into first and second regions designated 28 and 30, respectively. The first region 28 is adapted to be partially under the first, second, third and fourth metatarsal heads, and optionally the fifth metatarsal head, and the second region 30 is a base region. Adapted to be at least partially below the phalanx (PP1-PP5). The toe section 18 of the shoe sole extends forward of the forefoot section 16 and is at least below the middle phalanges MP2 to MP5 and the distal phalanges DP1 to DP5 of the toes of the wearer's legs.

  The sole 10 is formed in the first area 28 of the forefoot section 16 such that there is a small support area or a small resistance area against downward load or movement. The first region 28 is formed of an elastically deformable material that is less resistant to downward motion than the region around the first region (ie, the second region 30) and the toe section region 18. Region 28 may be formed from a material having a durometer smaller than surrounding regions 30 and 18. Region 28 preferably has a Shore A hardness in the range 30-35 that closely matches the hardness of a typical human leg fat pad. Alternatively, the region 28 may be made thinner so that it is at least partially below the surface of the second region 30 and the toe section 18. Region 28 may be formed as a discrete element (eg, a plug or insert 40 cut or incorporated into sole 10) and formed on the top or bottom surface of the sole, for example, by molding or machining. It may also be formed as a recessed cavity. Region 28 may be covered by a flexible lining (not shown).

Also, a region within region 28 that is substantially only under the wearer's first metatarsal head has a hole indentation 42 that comprises an asymmetrically shaped hole or indentation with respect to the remainder of region 28; The lowest point of the hole or indentation is biased towards the center inside. That is, as seen in FIG. 1A in detail, Anak Bomi 42 has a slope towards its outer shallow.

In practice, it bores recess 42 is a circular Also substantially circular in a plane, corresponding inner and outer walls may be bent or rounded to some extent. Thus, as used herein, "gradient" is the upper edge of the side wall, which is an imaginary line or cord extending between the locations morphing the bottom of the side wall holes recess 42. This is best seen by an imaginary line (FIG. 4), which is an imaginary cross-sectional line 43 that passes through the midpoint of the insert 40. This unique geometry has the effect of abducting the wearer's first metatarsal head as the wearer moves from midstance to the propulsive phase.

In size, the hole recess 42 must be large enough to accommodate at least a portion of the first metatarsal head in a plane. In an exemplary embodiment, the hole well 42 is substantially circular in a plane having a diameter of preferably about 2.54 cm to about 3.81 cm, depending on the size of the legs. Also, the hole indentation 42 may be oval, oval or elongated in a plane, and preferably at a nominal depth in the range of about 2-3 mm as measured from the upper edge of the side wall to the lowest point of the hole indentation 42. There must be. Despite this relatively small amount, this hole depression 42 has a significant effect of abduction of the first metatarsal head when the wearer moves to promote period from mid-stance. In an alternative embodiment, the hole indentation 42A is somewhat elongated and wider at its forward end, for example as shown in FIGS.

  The insole described above may be used in street and sports footwear including sandals. As mentioned above, the insole may be incorporated into an insole board at the time of manufacture, as an insole for the wearer to put into shoes or aftermarket insole devices or custom or pre-made (over-the-counter sales) For example, it may be formed as an orthodontic appliance.

  FIG. 6 is an illustration of a sole 110 according to a preferred embodiment of the present disclosure. The straightening device 110 has a composite insole having an insole 112, an outer arch region 114, an inner arch region 116, and a heel region 118. The footbed 112 and the outer arch region 114 have a first hardness value. The inner arch region 116 has a second hardness value that is softer than the first hardness value. The heel region 118 has a third hardness value that is harder than the first hardness value.

In use, the heel region 118 is under the heel of the wearer's leg. Similarly, the outer arch region 114 and the inner arch region 116 are under the arch of the wearer's leg. The insole 112 extends from the central region between the outer arch region 114 and the inner arch region 116 below the wearer's football including the first, second, third, fourth and fifth metatarsals. 110 extends to the front. The various durometers of the correction device 110 are selected to approximately match the various hardness regions on the back of the wearer's leg. Although the shape and size of the legs vary greatly from person to person, anthropometric studies have shown that the hardness of the “fat pad” at the bottom of the average human leg is not very different. Therefore, we have created footwear that is very comfortable for the average user and is biomechanical by changing the insole hardness to fit the various hardness areas on the back of the wearer's leg. It was found that the production efficiency was improved. In short, in the context of the present invention, the applicant has determined that the insole should be machined against the back of the leg so that the amount of movement of the insole with a given force is substantially the same as the movement of the pad on the back of the leg. Impedance matching. In this way, the insole becomes a natural extension of the pad on the back of the leg. For example, the first hardness value may be about 20-60 Shore C, preferably about 40 Shore C, and the second hardness value may be about 15-55 Shore C, preferably about 35 Shore C, The third hardness value may be about 30-70 Shore C, preferably about 50 Shore C, where Shore C is a durometer scale certified by the American Society for Testing Materials. Under the conditions of Shore A, another durometer scale approved by the American Society for Materials Testing, their desired values are about 20 Shore A, 15 Shore A and 30 Shore A, respectively.

  Although the insole 112 and the outer arch region 114 have been described as having a first hardness value, these two regions may have slightly different hardness values without departing from the scope of the present disclosure. Good. More precisely, these regions were described together on the basis of having a hardness value substantially similar to the heel region 118 and the inner arch region 116.

In a preferred embodiment of the present invention, the insole 112 is a hole indentation 120 located substantially below the location of the first metatarsal head of the user's leg, i.e. my aforementioned patent document 1 or my said patent document. 2 may have a hole recess 120 as described above with respect to addition 1 to 5 according to the teachings of the (U.S. Ser. No. 12 / 534,741). As described in Patent Document 2 and above, the hole recess 120 promotes the abduction of the first metatarsal head when the wearer moves from the mid-stance phase to the propulsion phase. The dent 120 should have approximately the same hardness as the insole 112 and the outer arch region 114, although differences in production methods may be expected.

  The various regions of the device 110 may be manufactured in one piece and can be co-extruded, bonded, bonded, chemically bonded, mechanically bonded, or integrated by any method known to those skilled in the art. The sole device may be used with men, women and children's city and sports footwear including sandals. The sole may be incorporated into the insole board during manufacture, may be formed as an insole for the wearer to put into the shoe, or formed as an aftermarket insole device or a custom or pre-made orthodontic appliance for over-the-counter sales May be. When formed in insole, insole or other similar enveloping product, the various regions of the sole 10 may not be joined together and may only be held in place by the enclosing product.

  Various modifications can be made to the above structure without departing from the scope of the invention. For example, an asymmetrically formed hole with a tapered side wall biased toward the medial inner side extends downwardly from the underside of the insole or insole of the shoe and is substantially below the first metatarsal head. May be formed. Also, if desired, the device can be designed to have indentations formed substantially to the left and right, for example as shown in FIG. 5, so that the device can be rotated. Turned over, it can work as both a right shoe part and a left shoe part. Accordingly, the content contained in the above description or shown in the accompanying drawings should be interpreted as illustrative and not in a limiting sense.

110 Straightening device 112 Insole 114 Outer arch area 116 Inner arch area 118 Hail area 120 Hole

Claims (11)

A first region for supporting a first, second, third, fourth and optionally fifth metatarsal head of the leg; and at least partially surrounding the first region and surrounding the remaining portion of the leg A leg support upper surface including a second region for support, wherein the first region provides a lower resistance to movement than the second region, and the first region is the first region. to the rest of the region, has a hole recessed area formed by the holes or depressions, the holes recessed region has a lowest point that is biased to the center inward, then the destination for user mid-stance abduction of the first metatarsal head is accelerated as it moves to the promotion period, further, the leg support on the side, a region substantially conforms hardness to hardness different areas of the back surface of the leg of the call for people differ Having footwear products . It said first region and lower than or the second region durometer, or has a Shore A hardness of 30 to 35, article of footwear of claim 1. Said first region, said second region plugs enclosed material by opening extending from its upper surface is formed in the sole or from the upper hole formed on the lower side of the sole, An article of footwear according to claim 1 or claim 2 configured. The hole recessed area has a standard depth of 2~3mm measured up to the edge or et lowest point on the hole recessed region, article of footwear according to any one of claims 1 to 3. The hole recessed area is in a plane, circular, elliptical or oval, article of footwear according to any one of claims 1 to 4. The footwear product according to any one of claims 1 to 5 , wherein the hole indentation region is elongated and has a slightly wider end in a toe direction. An insole, an outer arch region, an inner arch region, and a heel region, wherein the insole and the outer arch region have a first hardness value, and the inner arch region has the first hardness value. The footwear product of claim 1, having a softer second hardness value, and wherein the heel region has a third hardness value that is harder than the first and second hardness values. The outer arch region has a Shore C hardness value of 20-60,
It said inner arch region has a Shore C hardness of 1 5 to 55,
It said heel region has a Shore C hardness of 3 0 to 70, article of footwear of claim 7. The insole has a front region with a hole or depression underlying the first metatarsal head wearing a person, article of footwear according to claim 7 or 8. The inner arch region has a second hardness value that is at least 5 Shore C points softer than the first hardness value but not more than 10 Shore C points, and the heel region has the first hardness value. 10. An article of footwear according to any one of claims 7 to 9, having a third hardness value that is at least 10 Shore C point hard but not 20 Shore C point harder. The footwear product according to any one of claims 1 to 10 , comprising a shoe, a sole, an insole, an insole board, a cover for insertion into the shoe, a custom-made or ready-made correction for insertion into the shoe it is any one of the instrument.

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