Shoe insole

Patent metadata

Field	Value
Publication number	US-10136698-B2
Application number	US-201615570550-A
Country	US
Kind code	B2
Filing date	Apr 21, 2016
Priority date	May 28, 2015
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

An insole providing cushioning and control of foot motion. The insole includes a stability cradle and an extended heel pad secured to the underside of the base of the insole. A supplemental heel pad is also attached to lay over a portion of the extended heel pad. The extended heel pad and supplemental heel pad are constructed of materials to help control foot pronation.

First claim

What is claimed is:

1. An insole having a top surface for contacting a user's foot and a bottom surface for contacting the bottom interior of a user's shoe, comprising:
a. a base, said base having a base top side and a base bottom side, said base having a heel end, a toe end, a medial side defining an inner arch area and a lateral side defining an outer border area, said medial and said lateral sides extending from said heel end to said toe end along said arch area and said outer border area of said insole, respectively, and said base bottom side of said base defining a toe area, a forefoot area, a stability area and a heel area;
b. a stability cradle made of semi-rigid material, said stability cradle having a cradle top side and a cradle bottom side and a single extended heel pad opening extending from said cradle top side to said cradle bottom side along the lateral side of the insole from the midfoot area to the heel area and from the lateral side to the medial side in the heel area, said cradle top side affixed to a stability cradle indentation area of said base bottom side of said base;
c. a forefoot pad located in a forefoot indentation area between said midfoot and said toe areas of the insole;
d. a continuous extended heel pad having a top surface and a bottom surface and extending along the lateral side of the insole from the midfoot area to the heel area, said extended heel pad having said top surface affixed to said base bottom surface and said bottom surface extending through the single extended heel pad opening in said stability cradle, the continuous extended heel pad corresponding in shape to said single extended heel pad opening; and
e. a supplemental heel pad having a top surface and a bottom surface, said top surface being affixed and positioned over a portion of the extended heel pad in the heel pad area of the insole that is extending through the single extended heel pad opening in said stability cradle.

2. The insole of claim 1 , wherein said insole further comprises a top sheet having a foot contacting surface and an opposite surface that is adhered to said base top side of the base.

3. The insole of claim 1 , wherein said stability cradle, said extended heel pad and said supplemental heel pad provides control of the amount or rate of pronation of a user's foot.

4. The insole of claim 1 , wherein said forefoot pod has a square faceted surface for contact to the bottom interior of the user's insole.

5. The insole of claim 1 , wherein said supplemental heel pad is made of a firmer material than said extended heel pad.

6. The insole of claim 1 , wherein said supplemental heel pad is made of a softer material than said extended heel pad.

7. The insole of claim 1 , wherein said supplemental heel pad is made of a material of the same firmness of said extended heel pad.

8. The insole of claim 1 wherein the stability cradle is made of material with sufficient rigidity to support the medial side of a user's foot and assist in the control of foot pronation.

9. The insole of claim 1 wherein the stability cradle is made of material that has a durometer of about Shore A 90.

10. The insole of claim 1 wherein the stability cradle is made of material that has side walls that lie adjacent the lateral and medial sides of said insole.

11. The insole of claim 10 wherein the stability cradle has walls that have a thickness ranging from 0.5 mm to 3 mm thick.

12. The insole of claim 1 wherein the stability cradle is made of polypropylene.

13. The insole of claim 1 wherein the stability cradle has a length essentially equivalent to the length from the calcaneus through the metatarsal joints of a user's foot for which said insole is designed to be used.

14. An insole for use in a shoe having a top side for contacting a user's foot and a bottom side for contacting the bottom interior surface of a user's shoe, comprising:
a. a base, said base having a base top surface and a base bottom surface, said base having a heel end, a toe end, a medial border and a lateral border, said medial and lateral borders extending from said heel end to said toe end along the medial and lateral sides of the insole, respectively, said base bottom surface defining:
(i) a forefoot area extending from the toe end of said base to a location adapted to correspond to an area behind a metatarsal head area of the feet,
(ii) a midfoot area adapted to extend from the metatarsal head area of the feet to an edge that lies forward of the calcaneus of the foot,
(iii) a heel area that extends from said midfoot area to said heel end,
(iv) a forefoot pad indentation area located in said forefoot area, and adapted to extend from under the hallux of the foot from near the distal end of the base proximally to the front of the first metatarsal head, and
(v) a stability cradle indentation area located essentially along the midfoot and heel areas of the insole,

b. a continuous extended heel pad located in said lateral midfoot area that extends along the lateral side of the insole from the midfoot area to the heel area and from the lateral side to the medial side in the heel area, said extended heel pad being affixed to said base bottom surface of said base;
c. a stability cradle made of semi-rigid material and secured to said stability cradle indentation area of said base bottom side, said stability cradle having rib openings and an extended heel pad opening that allows the extended heel pad to extend there through;
d. a forefoot pad secured to said forefoot pad indentation area, said forefoot pad adapted to extend laterally and proximally under the lesser metatarsal heads of the foot to beneath the greater metatarsals; and
e. a supplemental heel pad affixed to said extended heel pad and located over a portion of the extended heel pad on the medial side of said heel area.

15. The insole of claim 14 wherein the supplemental heel pad is made of a firmer material than the material of the extended heel pad.

16. The insole of claim 14 , wherein the firmness of the supplemental heel pad is in the range of Shore C 45-50 and the firmness of the extended heel pad is approximately Shore C 60.

17. The insole of claim 14 , wherein the firmness of the supplemental heel pad is in the range of Shore C 50-55 and the firmness of the extended heel pad is in the range of about Shore C 65-70.

18. The insole of claim 14 , wherein the firmness of the supplemental heel pad and the extended heel pad is selected to control a rate of pronation.

19. The insole of claim 14 , wherein the firmness of the supplemental heel pad and the extended heel pad is selected based on a type of activity for which the insole is designed.

20. The insole of claim 14 , wherein the stability cradle is shaped to enable flexing of the first metatarsal during toe off.

21. A method of making an insole to control the motion of a user's foot in a shoe, the method comprising:
providing a base having a base top surface and a base bottom surface, said base having a heel end, a toe end, a medial border and a lateral border, said medial and said lateral borders extending from said heel end to said toe end, said base bottom surface defining:
(a) a forefoot area extending from the toe end of said base to a location adapted to correspond to an area behind a metatarsal head area of the feet,
(b) a midfoot area adapted to extend from the metatarsal head area to an edge that lies forward of the calcaneus of the foot,
(c) a heel area that extends from said midfoot area to said heel end;
(d)

Assignees

• Implus Footcare Llc

Inventors

• Granger David Bradley
• Martinez Jacob

Classifications

• A43B17/02

  wedge-like or resilient · CPC title

• A43B7/24 Primary

  Insertions or other supports preventing the foot canting to one side  {, preventing supination or pronation} · CPC title

• A43B7/22

  with fixed flat-foot insertions, metatarsal supports, ankle flaps or the like · CPC title

• A43B7/145

  situated under the toes, i.e. the phalanges · CPC title

• A43B7/144

  situated under the heel, i.e. the calcaneus bone · CPC title