Foot-stabilizing shoe inserts
An article useful as an insert in a shoe for preventing undesirable motion of the foot of a human subject within the shoe. In one embodiment the article comprises a substantially-planar base portion having a length dimension, a width dimension, a thickness dimension, a toe end, a heel end, a top surface, a bottom surface, and a circumferential edge. A first elevated portion is provided comprising at least one edge and having a top surface, an overall length dimension, a width dimension, and a thickness dimension, with the first elevated portion being disposed on the top surface of the base portion sufficiently to have a closest edge that is closest to the toe end of the base portion. A second elevated portion is present having a top surface, an overall length dimension, a width dimension, and a thickness dimension, with the second elevated portion being disposed on the top surface of the first elevated portion.
This disclosure relates generally to footwear. More particularly, it relates to inserts useful for preventing undesirable motion of the foot of a human subject who is wearing a shoe.
BACKGROUNDHigh-heeled shoes have been in popular use for decades. However, while shoes are typically manufactured to fit a large number of potential consumers, in some cases, owing to variance in the human body, not all shoes fit all persons equally. Indeed, some women have opined that a problem exists in high-heeled shoes that their feet have a tendency to move downwardly into such shoes as they walk, under the influence of gravitational forces. Such tendency leads in many cases to discomfort and in extreme cases, physical pain.
SUMMARY OF THE DISCLOSUREAn article useful as an insert in a shoe for preventing undesirable motion of the foot of a human subject within the shoe. In one embodiment the article comprises a substantially-planar base portion having a length dimension, a width dimension, a thickness dimension, a toe end, a heel end, a top surface, a bottom surface, and a circumferential edge. There is a first elevated portion comprising at least one edge and having a top surface, an overall length dimension, a width dimension, and a thickness dimension, with the first elevated portion being disposed on the top surface of the base portion sufficiently to have a closest edge that is closest to the toe end of the base portion. There is a second elevated portion having a top surface, an overall length dimension, a width dimension, and a thickness dimension, with the second elevated portion being disposed on the top surface of the first elevated portion. The second elevated portion may or may not be disposed substantially centrally upon the top surface of the first elevated portion.
In the annexed drawings:
Referring to the drawings and initially to
In one embodiment there is a first elevated portion 5 disposed on the base portion 3, which first elevated portion 5 extends substantially across the shoe insert 10 very near its toe end TE, having its closest edge thereto being disposed typically at a distance from the toe end that is equal to about the width W2 (
In one embodiment, there is a second elevated portion 7 disposed atop the first elevated portion, and centrally located thereabouts, with the second elevated portion having a top surface TS2 (
In one embodiment, the base portion 3, first elevated portion 5, and second elevated portion 7 are all of singular construction, comprising a single article of manufacture, which is made by an injection moulding process, stamping, thermoforming or other process known in the art for providing polymeric articles. In another embodiment, the base portion 3, first elevated portion 5, and second elevated portion 7 are separate elements, and are affixed to one another to provide the shoe insert 10 using conventional fastening means which may include adhesives, fasteners, and thermowelding. In another embodiment, any two elements selected from the group consisting of: the base portion 3, first elevated portion 5, and second elevated portion 7 are of singular construction, while the remaining one is discrete and is affixed to the structure comprising the other two by any methods aforesaid. In a preferred embodiment, the shoe insert 10 is of singular construction. In one embodiment, the circumferential edge of the shoe insert comprises a bevel 8 around the perimeter of the top surface of the base portion 3.
In one embodiment, the overall length dimension L1 is about 8 centimeters. However, a shoe insert according to this disclosure may have any overall length L1 between about 6 centimeters and about 12 centimeters, including all lengths and ranges of lengths therebetween.
In one embodiment, the overall width dimension W1 is about 7 centimeters. However, a shoe insert according to this disclosure may have any overall width W1 between about 4 centimeters and about 10 centimeters, including all widths and ranges of widths therebetween.
In one embodiment, the width dimension W2 is about 1 centimeter. However, a shoe insert according to this disclosure may have any width W2 between about 0.5 centimeters and about 5 centimeters, including all widths and ranges of widths therebetween.
In one embodiment, the length dimensions L3, L4, and L5 are substantially equal to one another, and are about 2 centimeters. However, in a shoe insert according to this the length dimensions L3, L4, and L5 may be any length between about 1 centimeter and about 4 centimeters, including all lengths and ranges of lengths therebetween.
In another embodiment, the length dimensions L3, L4, and L5 are not substantially equal to one another, and may be any length between about 1 centimeter and about 4 centimeters independent of one another, including all widths and ranges of widths therebetween. In one embodiment, the dimension D is about 1 centimeter; however a shoe insert according to this disclosure may have any dimension D between about 1 millimeter and about 3 centimeters, including all dimensions and ranges of dimensions therebetween. In one embodiment the first elevated portion is disposed on the top surface of the base portion such that the closest edge of the first elevated portion is disposed at a distance from the toe end of the base portion that is about equal to the width of the first elevated portion. In another embodiment, the first elevated portion is disposed on the top surface of the base portion such that the closest edge of the first elevated portion is disposed at a distance from the toe end of the base portion that is at least the width of the first elevated portion. In another embodiment, the first elevated portion is disposed on the top surface of the base portion such that the closest edge of the first elevated portion is disposed at a distance from the toe end of the base portion that is at least one millimeter greater than the width of the first elevated portion.
The dimension L2 is the total length span of the first elevated portion 5 across the width of the shoe insert 10. In general, L2 is less than W1 by any amount between about 0.5 cm and about 2 cm, including all span lengths and ranges of span lengths therebetween; however L2 may be longer than W1. In one embodiment L2 is about 6 centimeters; however, a shoe insert 10 according to this disclosure may have any span length L2 in the range of between about 3 centimeters and about 10 centimeters, including all span lengths and ranges of span lengths therebetween. In particular embodiments, the first elevated portion 5 is of sufficient length dimension L2 that the first elevated portion 5 extends across the base portion 3 in an amount that is at least about 70% of the width dimension W1 of the base portion.
While the foregoing dimensions have been expressed in terms of ranges of dimensions, it is to be appreciated that the present disclosure does not embrace mathematically impossible structures, and one of ordinary skill may easily select these various dimensions to arrive at a shoe insert 10 according to this disclosure. In one preferred embodiment: L1 is about 7.5 cm; L2 is about 6 cm; L3 is about 2.3 cm; L4 is about 2.5 cm; L5 is about 2.3 cm; W1 is about 6.5 cm; W2 is about 2 cm; and D is about 1.3 cm. In another embodiment, these figures are exact.
Although the base portion 3 is shown in
Although the first elevated portion 5 and second elevated portion 7 are depicted in
Also shown in
When the base portion 3 is comprised of a first base element 9 and a second base element 11, in one embodiment each of these elements are about one millimeter thick; however each may independently have any thickness in the range of between about 0.3 mm and about 4 mm, including all thicknesses and ranges of thicknesses therebetween, subject to their combined thickness are desirably within the described range of thicknesses specified for the base portion 3.
In one preferred embodiment: L1 is about 7.5 cm; L2 is about 6 cm; L3 is about 2.3 cm; L4 is about 2.5 cm; L5 is about 2.3 cm; W1 is about 6.5 cm; W2 is about 2 cm; D is about 1.3 cm; T1 is about 2 millimeters; T2 is about 3 millimeters; and T3 is about 2 millimeters. In another embodiment, these figures are exact.
In certain embodiments, the top surface T and bottom surface B of the base portion 3 comprise surface treatments, which may include surface roughenings or texturing (R in
Thus it is seen that the disclosure provides an article useful as an insert in a shoe for preventing undesirable motion of the foot of a human subject within the shoe, that the article may be thought of as comprising a substantially-planar base portion having a top surface and having a ridge disposed thereon, with the ridge collectively comprising a first elevated portion and a second elevated portion, in which the second elevated portion is disposed over the first elevated portion sufficiently to provide at least two plateau areas of different height with respect to the top surface of the base portion, as viewed from a side perspective. The plateau areas may comprise a flat top surface, or may include concavity or convexity on their surfaces.
In alternate embodiments, a shoe insert 10 according to this disclosure comprises an optional covering or layer disposed on the top surface of base portion 3. In one embodiment, such optional covering or layer may comprise a coating comprising any polymeric material including without limitation those mentioned above. In another embodiment, such optional covering or layer may comprise any fabric material, woven or non-woven, including natural fibers and synthetic fibers. Such optional coverings or layers may be applied to the top surface of the base portion 3 using conventional means, such as adhesives, or may be directly applied to the top surface of the base portion 3. However, any means of attachment of such optional covering or layer generally known in the art is suitable. The optional covering or layer in one embodiment covers the entire top surface of the base portion 3. In other embodiments only any portion thereof desired is covered, which may or may not include the first elevated portion and second elevated portion, depending on the preferences of the user.
This disclosure has described certain preferred embodiments and modifications thereto. Further modifications and alterations may occur to others upon reading and understanding the specification. Therefore, it is intended that the disclosure not be limited to the particular embodiment(s) disclosed as the best mode contemplated for carrying out this disclosure, but that the disclosure will include all embodiments falling within the scope of the appended claims.
Claims
1) An article useful as an insert in a shoe for preventing undesirable motion of the foot of a human subject within the shoe, which article comprises: wherein the first elevated portion is of sufficient length dimension that it extends across the base portion in an amount that is at least about 70% of the width dimension of said base portion
- a) a substantially planar base portion having a length dimension, a width dimension, a thickness dimension, a toe end, a heel end, a top surface, a bottom surface and a circumferential edge;
- b) a first elevated portion comprising at least one edge and having a top surface, an overall length dimension, a width dimension, and a thickness dimension, said first elevated portion being disposed on the top surface of said base portion sufficiently to have a closest edge that is closest to said toe end of said base portion;
- c) a second elevated portion having a top surface, an overall length dimension, a width dimension, and a thickness dimension, said second elevated portion being disposed on the top surface of said first elevated portion;
- d) an optional covering disposed on the top surface of said base portion, said optional covering being selected from the group consisting of: fabrics and polymeric materials,
2) An article according to claim 1 wherein said second elevated portion is disposed substantially centrally upon the top surface of said first elevated portion.
3) An article according to claim 1 wherein said first elevated portion is disposed on said top surface of said base portion such that the closest edge of said first elevated portion is disposed at a distance from the toe end of said base portion that is about equal to the width of said first elevated portion.
4) An article according to claim 1 wherein said first elevated portion is disposed on said top surface of said base portion such that the closest edge of said first elevated portion is disposed at a distance from the toe end of said base portion that is at least one millimeter greater than the width of said first elevated portion.
5) An article according to claim 1 wherein said first elevated portion and said second elevated portion are shaped substantially as trapezoids having two relatively short sides and two relatively long sides, wherein one of the relatively long sides is concave and the other of the long sides is convex on both the first elevated portion and said second elevated portion.
6) An article according to claim 1 wherein said circumferential edge is beveled.
7) An article according to claim 1 wherein the combined thickness of said base portion, said first elevated portion, and said second elevated portion is any thickness in the range of between about three millimeters and about fifteen millimeters, including all thicknesses and ranges of thicknesses therebetween.
8) An article according to claim 1 wherein said top surface of said first elevated portion is substantially flat.
9) An article according to claim 1 wherein said top surface of said second elevated portion is substantially flat.
10) An article according to claim 1 wherein at least one of said top surface and said bottom surface of said base portion includes a feature selected from the group consisting of: an adhesive and a surface roughening.
11) An article useful as an insert in a shoe for preventing undesirable motion of the foot of a human subject within the shoe, which article comprises: wherein said second elevated portion is not disposed substantially centrally upon the top surface of said first elevated portion.
- a) a substantially planar base portion having a length dimension, a width dimension, a thickness dimension, a toe end, a heel end, a top surface, a bottom surface and a circumferential edge;
- b) a first elevated portion comprising at least one edge and having a top surface, an overall length dimension, a width dimension, and a thickness dimension, said first elevated portion being disposed on the top surface of said base portion sufficiently to have an edge that is closest to said toe end of said base portion;
- c) a second elevated portion having a top surface, an overall length dimension, a width dimension, and a thickness dimension, said second elevated portion being disposed on the top surface of said first elevated portion,
12) An article according to claim 11 wherein said first elevated portion is disposed on said top surface of said base portion such that the closest edge of said first elevated portion is disposed at a distance from the toe end of said base portion that is about equal to the width of said first elevated portion.
13) An article according to claim 11 wherein said first elevated portion is disposed on said top surface of said base portion such that the closest edge of said first elevated portion is disposed at a distance from the toe end of said base portion that is at least one millimeter greater than the width of said first elevated portion.
14) An article according to claim 11 wherein said first elevated portion and said second elevated portion are shaped substantially as trapezoids having two relatively short sides and two relatively long sides, wherein one of the relatively long sides is concave and the other of the long sides is convex on both the first elevated portion and said second elevated portion.
15) An article according to claim 11 wherein said circumferential edge is beveled.
16) An article according to claim 11 wherein the combined thickness of said base portion, said first elevated portion, and said second elevated portion is any thickness in the range of between about three millimeters and about fifteen millimeters, including all thicknesses and ranges of thicknesses therebetween.
17) An article according to claim 11 wherein said top surface of said first elevated portion is substantially flat.
18) An article according to claim 11 wherein said top surface of said second elevated portion is substantially flat.
19) An article according to claim 11 wherein at least one of said top surface and said bottom surface of said base portion includes a feature selected from the group consisting of: an adhesive and a surface roughening.
20) An article useful as an insert in a shoe for preventing undesirable motion of the foot of a human subject when disposed within the shoe, which article comprises a substantially-planar base portion having a top surface having a ridge disposed thereon, said ridge comprising a first elevated portion and a second elevated portion, with the second elevated portion being disposed upon the first elevated portion, sufficient to provide at least two plateau areas of different height with respect to the top surface of the base portion, as viewed from a side perspective.
Type: Application
Filed: Apr 11, 2008
Publication Date: Oct 15, 2009
Inventor: Majin Castillo (San Antonio, TX)
Application Number: 12/082,476
International Classification: A43B 13/38 (20060101);