SHOES WITH ORTHOTIC ARCH SUPPORT
20180352907 ยท 2018-12-13
Inventors
Cpc classification
A43B3/0078
HUMAN NECESSITIES
A43B7/144
HUMAN NECESSITIES
International classification
Abstract
The present disclosure is directed to the formation of the curvature of an orthotic arch support inclined shoe, such as a sneaker or a high-heeled shoe, using a shoe last. A shoe last includes a heel height and a sole having an arch. The arch is defined by an inner arch, a middle arch, and a lateral arch. The middle arch is defined by a first formula and lateral and inner arches are defined by a second formula. In particular, the shoes and shoe lasts of the present disclosure preserve the healthy, stable positioning of individuals with normal arches, and convert the pronation, or supination positioning of individuals with flat feet or high arches to a stable position afforded by normal arches. This allows a comfortable gait in a natural anatomical position and balances the weight center of the body.
Claims
1. A shoe last, comprising: a heel height; and a sole having an arch, the arch defined by an inner arch, a middle arch, and a lateral arch, the middle arch defined by the formula f(x)=(T/150)*(p1*x2+p2*x+p3), the lateral and inner arches defined by the formula f(x)=(T/140)*(p1*x2+p2*x+p3), wherein variable x provides alignment of an inflection peak point of a respective one of the arches based upon the heel height, wherein T is an arch length, and wherein p1=0.01408, p2=0.09223, and p3=7.537.
2. The shoe last of claim 1, wherein the shoe last is configured for a high-heeled shoe.
3. The shoe last of claim 1, wherein the shoe last is configured for a sneaker.
4. A shoe formed of the shoe last of claim 1.
5. A high-heeled shoe formed from the shoe last of claim 1.
6. A sneaker formed from the shoe last of claim 1.
7. A shoe last, comprising: a heel height; and a sole having an arch, the arch defined by an inner arch, a middle arch, and a lateral arch, wherein the middle arch is defined by a first formula and the lateral and inner arches are defined by a second formula different than the first formula.
8. A shoe formed with the shoe last of claim 7.
9. The shoe last of claim 7, wherein the first formula is f(x)=(T/150)*(p1*x2+p2*x+p3), wherein variable x provides horizontal alignment of an inflection peak point of a respective one of the arches based upon the heel height, wherein T is an arch length, and wherein p1, p2, and p3 are different coefficients.
10. The shoe last of claim 9, wherein the second formula is f(x)=(T/140)*(p1*x2+p2*x+p3).
11. The shoe last of claim 10, wherein p1 equals 0.01408.
12. The shoe last of claim 11, wherein p2 equals 0.09223.
13. The shoe last of claim 12, wherein p3 equals 7.537.
14. A shoe last, comprising: a heel height; and a sole having an arch, the arch defined by an inner arch, a middle arch, and a lateral arch, wherein the middle arch is defined by a first formula and at least one of the lateral and inner arches is defined by a second formula different than the first formula.
15. A shoe formed with the shoe last of claim 14.
16. The shoe last of claim 14, wherein the first formula is f(x)=(T/150)*(p1*x2+p2*x+p3), wherein variable x provides horizontal alignment of an inflection peak point of a respective one of the arches based upon the heel height, wherein T is an arch length, and wherein p1, p2, and p3 are different coefficients.
17. The shoe last of claim 16, wherein the second formula is f(x)=(T/140)*(p1*x2+p2*x+p3).
18. The shoe last of claim 17, wherein p1 equals 0.01408.
19. The shoe last of claim 18, wherein p2 equals 0.09223.
20. The shoe last of claim 19, wherein p3 equals 7.537.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and, together with a general description of the disclosure given above, and the detailed description given below, serve to explain the principles of the disclosure, wherein:
[0022]
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[0041]
DETAILED DESCRIPTION
[0042] Particular embodiments of the present disclosure are described hereinbelow with reference to the accompanying drawings in which like reference numerals designate identical or corresponding elements in each of the several views. In the following description, well-known functions or constructions are not described in detail to avoid obscuring the present disclosure in unnecessary detail.
[0043] The present disclosure is generally directed to the formation of the curvature of an orthotic arch support inclined shoe, such as a sneaker or a high-heeled shoe, using a shoe last. A shoe last is a solid form, usually made of wood or plastic that represents the anatomical information of a foot. The curvature for such shoes and shoe lasts are built on changes in tangent values of the inner arch, the middle arch and the lateral arch of the shoe last.
[0044] Upon reviewing the curvature of the shoe last for the orthotic arch support inclined sneaker and high-heel shoes, the area representing the lateral arch of the shoe last (in other words, the foot) has the lowest tangent values, as compared to the arch at the middle portion and the inner arch (that is, the area representing the hollow part of the foot).
[0045] For instance, if 236 mm is the total foot length, the lateral arch and the inner arch length varies between 130 mm and 140 mm (See
[0046] From the lateral arch of the reference point towards the inner arch, the arch of the feet with the normal arch is filled, because of the gradual increase of the tangent values towards the inner arch of the orthotic shoe last. For individuals with flat feet (pronation) (
[0047] The lateral arch and inner arch length varies between 130 mm and 140 mm in the high heel orthotic invention for a total foot length of 236 mm (
[0048] Given the diversity of arch lengths in individuals across the globe, shoe and shoe last arch lengths also vary widely across the globe. Differences in arch length can be attributed to at least the following: [0049] 1) High-heel or wedge shoes with varying designs, such as open back/closed back sandals, open back/closed back boots, open back/closed back pumps, open back/closed back sneakers; [0050] 2) The loss of the medial longitudinal arch of the foot, as the medial part starts to have contact with the ground and shifts the heel to the back. This is normally present in individuals with flat feet (
[0053] With ordinary, non-orthotic high heels 99 (see
[0054] As seen in
[0055] With reference to
[0056] The shoes and shoe lasts of the present disclosure can be provided in accordance with the following:
[0057] Utilizing points A and B of respective inner, middle, or lateral arches as reference points, the example tables below provide peak points (Tangent values in degrees) where the curvature of these respective arches realize their bending points.
1 cm Heel Height Tangent Degree Values for Points A and B:
[0058]
TABLE-US-00001 TABLE 1 inner arch 1.047 1.373 middle arch 1.856 1.091 lateral arch 1.659 1.008
2 cm Heel Height Tangent Degree Values for Points A and B:
[0059]
TABLE-US-00002 TABLE 2 inner arch 1.162 1.460 middle arch 1.940 1.169 lateral arch 1.711 1.101
3 cm Heel Height Tangent Degree Values for Points A and B:
[0060]
TABLE-US-00003 TABLE 3 inner arch 1.241 1.581 middle arch 2.033 1.222 lateral arch 1.864 1.196
4 cm Heel Height Tangent Degree Values for Points A and B:
[0061]
TABLE-US-00004 TABLE 4 inner arch 1.354 1.659 middle arch 2.157 1.357 lateral arch 1.952 1.321
5 cm Heel Height Tangent Degree Values for Points A and B:
[0062]
TABLE-US-00005 TABLE 5 inner arch 1.402 1.765 middle arch 2.221 1.562 lateral arch 2.017 1.517
6 cm Heel Height Tangent Degree Values for Points A and B:
[0063]
TABLE-US-00006 TABLE 6 inner arch 1.582 1.863 middle arch 2.361 1.774 lateral arch 2.159 1.674
7 cm Heel Height Tangent Degree Values for Points A and B:
[0064]
TABLE-US-00007 TABLE 7 inner arch 1.646 1.977 middle arch 2.434 1.875 lateral arch 2.226 1.781
8 cm Heel Height Tangent Degree Values for Points A and B:
[0065]
TABLE-US-00008 TABLE 8 inner arch 1.709 2.286 middle arch 2.508 2.080 lateral arch 2.311 1.963
9 cm Heel Height Tangent Degree Values for Points A and B:
[0066]
TABLE-US-00009 TABLE 9 inner arch 1.822 2.573 middle arch 2.630 2.321 lateral arch 2.428 2.200
10 cm Heel Height Tangent Degree Values for Points A and B:
[0067]
TABLE-US-00010 TABLE 10 inner arch 1.922 2.713 middle arch 2.730 2.440 lateral arch 2.528 2.413
11 cm Heel Height Tangent Degree Values for Points A and B:
[0068]
TABLE-US-00011 TABLE 11 inner arch 2.040 2.879 middle arch 2.890 2.642 lateral arch 2.677 2.534
[0069] When the horizontal projections of the values for the inner arch were taken into account, they showed a shift backwards as the heel height of the inflection increase. Heel height and horizontal projection of the inflection peak point can be expressed with the following formula: f(x)=p1*x2+p2*x+p3. Here, variable x gives horizontal alignment of inflection peak point for different heel heights where coefficient p1=0.01408, coefficient p2=0.09223, and coefficient p3=7.537.
[0070] For shoes that have heel heights ranging from about one centimeters to eleven centimeters from ground, in one cm increments, the following tables comprise the angular arches for shoe lasts that correspond to such shoes, as measured from point A (e.g., from a rear of the shoe at the terminus of the arch along the shoe last) to point B (e.g. at the ball of the shoe last). The heel height values for one centimeter and eleven centimeter are respective minimums and maximums within the range of possible deviation. The range may be extended similarly over the various distance points. The inner arches, the middle arches and the lateral arches for heel heights other than the one cm increments between the about one to eleven centimeters are extrapolated therein.
1 cm Heel Height Tangent Degrees
[0071]
TABLE-US-00012 TABLE 12 Arch inner middle lateral 10 mm 5.8 6.2 5.9 20 mm 8.3 8.1 8.2 30 mm 9.5 9.4 9.3 40 mm 9.9 9.7 9.1 50 mm 8.5 9.4 5.7 60 mm 4.6 5.1 2.4 70 mm 0.8 1.5 1.9 80 mm 1.1 0.2 0.6 90 mm 2.4 0.7 1.7 100 mm 7.1 2.5 6.4 110 mm 9.3 5.3 9.4 120 mm 9.7 9.2 8.8 130 mm 7.6 8.7 6.7 140 mm 4.1 8.2 3.3 150 mm 4.1
2 cm Heel Height Tangent Degrees
[0072]
TABLE-US-00013 TABLE 13 Arch inner middle lateral 10 mm 6.4 6.6 6.1 20 mm 9.1 8.7 8.1 30 mm 11.5 10.7 11.4 40 mm 11.1 11.3 9.9 50 mm 9.2 10.1 6.5 60 mm 5.5 6.7 2.7 70 mm 0.3 2.2 1.8 80 mm 1.3 0.1 0.5 90 mm 3.7 0.8 2.8 100 mm 8.4 3.0 7.3 110 mm 10.5 6.9 10.1 120 mm 11.6 11.1 9.2 130 mm 8.8 10.3 7.0 140 mm 4.8 8.7 3.9 150 mm 4.4
3 cm Heel Height Tangent Degrees
[0073]
TABLE-US-00014 TABLE 14 Arch inner middle lateral 10 mm 7.1 7.0 6.7 20 mm 10.1 9.3 9.8 30 mm 11.8 11.1 11.4 40 mm 12.3 12.2 10.1 50 mm 10.4 10.8 7.7 60 mm 6.6 7.3 3.6 70 mm 1.3 3.3 1.6 80 mm 1.5 0.6 0.1 90 mm 4.9 1.1 3.2 100 mm 9.9 4.1 8.3 110 mm 11.2 8.8 11.3 120 mm 12.4 12.0 10.6 130 mm 9.8 11.4 7.9 140 mm 5.5 9.2 4.3 150 mm 4.9
4 cm Heel Height Tangent Degrees
[0074]
TABLE-US-00015 TABLE 15 Arch inner middle lateral 10 mm 7.4 7.5 6.9 20 mm 16.4 10.9 14.7 30 mm 18.2 15.2 16.1 40 mm 13.1 16.8 10.6 50 mm 11.1 11.3 8.2 60 mm 7.5 8.5 4.3 70 mm 2.7 4.5 0.9 80 mm 2.2 1.1 0.9 90 mm 6.6 1.3 4.9 100 mm 11.4 5.3 9.9 110 mm 14.7 10.2 12.2 120 mm 15.7 13.5 12.9 130 mm 10.4 13.2 8.7 140 mm 6.1 9.8 5.1 150 mm 5.2
5 cm Heel Height Tangent Degrees
[0075]
TABLE-US-00016 TABLE 16 Arch inner middle lateral 10 mm 7.8 7.6 7.2 20 mm 17.4 11.5 16.9 30 mm 18.9 17.1 16.3 40 mm 14.1 16.9 11.8 50 mm 11.9 12.9 9.1 60 mm 8.5 9.5 5.3 70 mm 3.7 6.1 0.8 80 mm 2.8 2.1 1.9 90 mm 8 2.3 6 100 mm 13.7 7.6 11.9 110 mm 15.7 12.4 13.9 120 mm 16.8 14.4 15.1 130 mm 11.4 15.7 9.3 140 mm 6.4 10.1 5.5 150 mm 5.9
6 cm Heel Height Tangent Degrees
[0076]
TABLE-US-00017 TABLE 17 Arch inner middle lateral 10 mm 7.9 7.7 7.3 20 mm 19.3 11.7 17.9 30 mm 20.4 18 16.9 40 mm 14.9 17.4 13.7 50 mm 13 14.2 11.9 60 mm 9.9 12.6 7.3 70 mm 4.3 7.9 0.1 80 mm 3.7 1.4 2.1 90 mm 11 2.5 9.4 100 mm 15.6 10.7 14 110 mm 16.4 14.8 15.2 120 mm 17.3 16.1 16.4 130 mm 11.9 16.9 10.5 140 mm 6.7 10.8 5.6 150 mm 6.5
7 cm Heel Height Tangent Degrees
[0077]
TABLE-US-00018 TABLE 18 Arch inner middle lateral 10 mm 8.2 7.8 7.5 20 mm 21.1 11.8 19.9 30 mm 23.5 20.2 21.6 40 mm 15.7 22.3 13.8 50 mm 14.5 14.4 11.1 60 mm 10.9 12.4 7 70 mm 5.4 7.6 0.2 80 mm 4.4 2.1 2.8 90 mm 11.5 3.4 9.8 100 mm 16.3 10.9 14.8 110 mm 17 15.1 15.5 120 mm 18.8 16.2 16.9 130 mm 12.5 17.7 10.9 140 mm 6.9 11.2 6.3 150 mm 6.8
8 cm Heel Height Tangent Degrees
[0078]
TABLE-US-00019 TABLE 19 Arch inner middle lateral 10 mm 8.4 8.1 7.9 20 mm 22.9 12.7 20.8 30 mm 24.3 21.4 22.1 40 mm 16.8 22.6 14.9 50 mm 13.5 15.1 9.8 60 mm 11.6 10.1 6.1 70 mm 6.1 7 2.1 80 mm 5.7 2.3 3.8 90 mm 12.5 4.8 9.2 100 mm 17.2 10.6 14.9 110 mm 18.1 15.8 16.6 120 mm 19.1 17.2 17.7 130 mm 13.3 18.1 11.1 140 mm 7.1 11.6 6.8 150 mm 6.9
9 cm Heel Height Tangent Degrees
[0079]
TABLE-US-00020 TABLE 20 Arch inner middle lateral 10 mm 8.5 8.2 8.1 20 mm 23.7 12.9 21.7 30 mm 25.4 22.3 23.1 40 mm 18.2 23.6 16.2 50 mm 17.7 16.9 14.6 60 mm 12.7 15.9 6.9 70 mm 6.5 8.1 3.5 80 mm 6.5 2.5 5.1 90 mm 14 5.7 11.9 100 mm 19.9 12.7 16.5 110 mm 21.4 17.6 18.3 120 mm 22.7 19.7 17.7 130 mm 14.1 18.4 11.6 140 mm 7.7 12.4 7 150 mm 7.2
10 cm Heel Height Tangent Degrees
[0080]
TABLE-US-00021 TABLE 21 Arch inner middle lateral 10 mm 8.7 8.4 8.3 20 mm 25.2 13.2 23.3 30 mm 27.5 23.9 25.1 40 mm 21.4 25.8 20 50 mm 18.8 20.6 15.7 60 mm 13.2 16.9 7.3 70 mm 6.9 8.2 3.9 80 mm 7.5 2.6 6.1 90 mm 15.7 6.4 13 100 mm 20.2 13.7 17.7 110 mm 23.4 18.3 21.9 120 mm 24.7 22 22.8 130 mm 15.4 23.1 12.8 140 mm 8.3 13.7 7.2 150 mm 7.5
11 cm Heel Height Tangent Degrees
[0081]
TABLE-US-00022 TABLE 22 Arch inner middle lateral 10 mm 8.8 8.6 8.4 20 mm 26.7 14 24.3 30 mm 28.9 25.2 25.1 40 mm 23.1 26.8 20.6 50 mm 19.4 21.3 16.7 60 mm 13.9 17.2 7.7 70 mm 7.1 8.4 4.4 80 mm 8.9 2.9 7.5 90 mm 17 7.8 15.2 100 mm 21.2 15.9 19.8 110 mm 24.4 20.3 22.6 120 mm 25 23.1 23.1 130 mm 16.5 23.8 14.2 140 mm 8.7 14.1 7.8 150 mm 8.3
[0082] After an initial shoe last (or mold) has been created, a set or series can be created as a pattern for each size. Each pattern in the set reproduces the features of the standard, and be adaptable (in measurement) to the shoe lasts or scale of measures for which the set is intended. Most often, the sample or development size in the United States is a women's 6, 6, or 7. The women's size 6 has a foot length of 236 mm such that the shoe last's middle arch length will be between 140 mm-150 mm.
[0083] For instance, if the foot length is 240 mm, then the corresponding shoe last has a middle arch length between about 142 mm-152 mm. If the foot length decreases or increases, the arch length will proportionally increase or decrease. And for each size, the arch length is calculated proportionally.
[0084] When the total shoe last length (in other words, the foot length) changes, the relation between heel height and horizontal projection of the inflection peak point becomes:
f(x)=(T/150)*(p1*x2+p2*x+p3) for calculating middle arch length; and
f(x)=(T/140)*(p1*x2+p2*x+p3) for calculating the lateral arch and the inner arch.
[0085] In these formulas, T is the arch length in millimeters as the shoe is graded (e.g., made into a different shoe size). Calculations are applicable to any grading measure, such as the United States men's and women's shoes grading measure and the European men's and women's shoes grading measure.
[0086] For each heel height, there is the same linear decrease or increase between the horizontal projections of the inner arch, the middle arch and the lateral arch peak points (
[0087] Once the shoe last have been created and approved using any suitable manufacturing technique, the next step is to make extreme sizes, e.g. women's 4 and 12, and men's 6 and 18. And after they've been approved, the rest of the sizes are created using any suitable manufacturing technique.
[0088] The shoe last models obtained by the aforementioned formulas, with the appropriate coefficients factors as described, are those of the healthy and suitable position of normal arches. They convert the pronation position in flat-footed individuals to a neutral position, which ensures comfort. However, within the aforementioned coefficients parameters, there may be a deviation of a few degrees for the inner arch, the middle arch, or the lateral arch. Ranges of deviation, with said deviations are still within comfort levels, but at their outer limits, are defined by the values for adjacent heel heights in the tables.
[0089] Persons skilled in the art will understand that the structures and methods specifically described herein and shown in the accompanying figures are non-limiting exemplary embodiments, and that the description, disclosure, and figures should be construed merely as exemplary of particular embodiments. It is to be understood, therefore, that the present disclosure is not limited to the precise embodiments described, and that various other changes and modifications may be effected by one skilled in the art without departing from the scope or spirit of the disclosure. Additionally, the elements and features shown or described in connection with certain embodiments may be combined with the elements and features of certain other embodiments without departing from the scope of the present disclosure, and that such modifications and variations are also included within the scope of the present disclosure. Accordingly, the subject matter of the present disclosure is not limited by what has been particularly shown and described.