Shoe With Resilient Heel
This invention is directed to an improved shoe comprising: a shoe having a heel; a cavity defined in said heel; and, a spring assembly for being received in said cavity and attached to said shoe having a plurality of leaf springs. The invention can also include a vibration damping element carried by each of said leaf springs. The invention can also include non-slick coverings carried by each of said leaf springs.
This application claims priority in U.S. Provisional Patent Application Serial No. 61/438,726 filed Feb. 2, 2012.
BACKGROUND OF THE INVENTION1. Field of the Invention
This invention is directed to a resilient heel integrated into a shoe and more particularly, a spring configuration performing the function of the heel of a shoe.
2. Description of Related Art
The history of human development shows that the importance of protecting the foot was early recognized. Records of the Egyptians, the Chinese, and other early civilizations all contain references to shoes. The shoe is repeatedly mentioned in the Bible and the Hebrews used it in several instances with a legal significance, notably in binding a bargain. The first rubber heel for shoes was patented on Jan. 24, 1899 by Irish-American Humphrey O'Sullivan and granted U.S. Pat. No. 625,897. O'Sullivan patented the rubber heel which outlasted the leather heel then in use. Since the 1900s, the design of the heel for dress shoes has remained relatively unchanged as shown in U.S. Pat. No. 6,962,010.
With the increased popularity in athletics, improvements to shoes began. Many of these improvements centered around the use of a cushioned sole or heel as shown in U.S. Pat. Nos.: 4,224,749; 5,560,126; 6,962,009; and U.S. Pat. No. 524,520. Further, U.S. Pat. No. 6,282,814 discloses the use of wave springs to cushion a shoe. U.S. Pat. No. 5,435,079 discloses an athletic shoe that includes a spring interposed in its sole providing superior shock absorbance and energy return. However, efforts to improve the comfort is dress shoes have not seen the inventive activity of that of athletic shoes.
Women's shoes, however, have seen much more inventive activity concerning improvements to the heel. U.S. Pat. No. 7,140,125 issued Nov. 28, 2006 discloses a high-heeled shoe to be worn on a foot of a wearer comprising a high heel; and a spring element provided in or with the high heel which serves to lower a heel of the foot of the wearer during a heel strike to approximate a normal walking pattern; the shoe preferably further includes a sprung midfoot support structure which distributes a load across at least a portion of the foot and provides an energy return. U.S. Pat. No. 2,825,154 issued January of 1957 and discloses a woman's high heel shoe with a shock absorbing heel using a spring supported in a longitudinal bore disposed in alignment with the longitudinal axis of a woman's high heel. U.S. Pat. No. 6,901,686 discloses a design for safety and comfort while maintaining a desired fashion sense in footwear. The mechanism provides a “spring” in the step of a user wearing footwear incorporating such a mechanism. U.S. Pat. No. 4,670,996 issued Jun. 9, 1987 and discloses a woman's shoe with flexible shank for use with replaceable heels of different height including a sole with a forward support portion and a raised heel portion and an overlying insole.
There is also a body of patents that use a leaf spring assembly in the sole to address adding support and resiliency to the shoe. U.S. Pat. No. 7,016,867 discloses a spring integrated into the sole of the shoe. The spring contains a portion that is under the front of the foot and another portion that is positioned under the heal. The portion under the heel provides for a “spring” support. PCT application WO 2009/064286 discloses a spring assembly for footwear; the assembly comprising an upper support coupled to at least two lower leaf springs, each capable of individually engaging the ground, and each acting as individual suspension and energy absorber while being free to travel substantially independently from the other within a range. U.S. Pat. No. 6,928,756 discloses that the spring means is a leaf spring having a leaf spring forward end and a leaf spring rearward end. U.S. Pat. No. 4,566,206 discloses an undamped spring having multi-spring rates provided in the heel support portion of a shoe for resiliently compressing under heel pressure against the ground and returning a substantial portion of the energy of the pressure to the wearer's foot.
Further, U.S. Pat. No. 2,508,318 is directed to a heel having a leaf spring having an upper section which is anchored to a shoe by screws and nuts. The upper part is fastened to an anchor plate which is above the sole. The leaf spring has a lower section spaced from the upper section and resiliently held by a curved middle section. However, these reference use a leaf spring containing significant disadvantages for lateral movement and are also generally unappealing from an aesthetic point of view.
Therefore, it is an object of this invention to provide for a resilient heel for the shoe, particularly the men's dress shoe, that is aesthetically pleasing.
SUMMARY OF THE INVENTIONThe objectives of this invention are accomplished by providing an improved shoe comprising: a shoe having a heel; a cavity defined in the heel; and, a spring assembly for being received in the cavity and attached to the shoe having a plurality of leaf springs. The invention can also include a vibration damping element carried by each of the leaf springs and non-slick coverings carried by each of the leaf springs.
Each leaf spring can have a different resiliency, vary in length, and vary in incident angle to the ground. The leaf springs can vary in depth within the cavity. The invention can include a tension adjustment member located between the spring and a lower member.
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The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. The described embodiments are to be considered in all respects only as illustrative and not restrictive. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. All changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims
1. An improved shoe comprising:
- a shoe having a sole; and,
- a spring plate having a plurality of flanges carried by said sole with said flanges disposed under said heel defining a space between said flanges and a heel of said shoe.
2. The shoe of claim 1 including a heel having a recess for receiving said flanges.
3. The shoe of claim 1 including a resilient covering carried by at least one flange.
4. The shoe of claim 1 including a clamping device carried by at least one flange.
5. The shoe of claim 1 including a tension adjusting member disposed between said sole and said flanges.
6. The shoe of claim 1 wherein said tension adjusting member is an insert.
7. The shoe of claim 1 wherein one flange is of a different length from said other flanges.
8. The shoe of claim 1 wherein one flange has a different angel of incident relative to the ground to the other flanges.
9. The shoe of claim 1 including lights carried by said sole for illuminating said space.
10. The shoe of claim 9 wherein said flanges are reflective for reflecting said light.
11. The shoe of claim 1 including an absorber disposed in said space.
12. The shoe of claim 1 including a support portion included in said spring plate.
13. The shoe of claim 12 wherein said support portion extends to the toe of the shoe.
14. The shoe of claim 12 wherein said support portion curves into said heel.
15. The shoe of claim 1 including a pivot attachment attached to a flange allowing said flange to pivot about said pivot attachment.
16. The shoe of claim 1 including a heel stop attached to said heel.
17. An improved shoe comprising:
- a shoe having a sole and a heel area;
- a support plate having a support platform and a plurality of flanges carried by said sole;
- a recess defined in said heel for receiving said flanges; and,
- a clamping device carried by at least one of said flanges.
18. The shoe of claim 17 including a tension member carried by said spring plate.
19. A shoe accessory comprising:
- a support plate having a support platform and a plurality of flanges removably attachable to said shoe;
- a resilient covering carried by said flanges; and,
- a clamping device carried by at least one flange.
20. The shoe accessory of claim 19 including a light carried by said support plate.
Type: Application
Filed: Feb 2, 2012
Publication Date: Aug 2, 2012
Inventor: Nathan A. Scolari (Greenville, SC)
Application Number: 13/365,120
International Classification: A43B 21/26 (20060101); A43B 23/24 (20060101);