Propulsion footwear

a technology of propulsion footwear and heel, applied in the field of footwear, can solve the problem of limited energy return in this design, and achieve the effect of improving the wear resistance and reducing the wear resistan

Inactive Publication Date: 2006-06-29
ASMUNDSON H CHAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

U.S. Pat. No. 6,009,636 by Wallerstein does accommodate necessary foot angles for thrust yet pivots about the ball area and does not incorporate spring devices amply strong for the task of active energy return.
Energy return in this design is, unfortunately, limited to the heel.

Method used

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Examples

Experimental program
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Embodiment Construction

[0018]FIG. 1 shows a side view wherein one shock absorber2 is attached to the torsion springs3 and to the user's foot encasement1 in such a manner as to absorb shock and then influence a forward pivot of the foot encasement1. The site at which the foot encasement1 is initially cushioned and then tilted forward is the upper pivotal point6 of the shock2. In this model the upper attachment point6 of the shock2 and the extension15 (welds have been utilized to make fixed attachments in this embodiment) from the foot encasement1, have a bolt—which allows for pivoting—fastening them together at a point above the user's heel. The lower pivoting point17 of the shock2 consists of a fully enclosed ball bearing ring firmly fixed to the bottom of the shock2 and the middle of the swing shaped rod8 that connects in a pivotal manner7 to each torsion spring3. (The swing shaped rod is necessary with most shock absorbers, because the shock cannot compress past fifty percent of its own length. This amo...

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PUM

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Abstract

A style of footwear, comprising a spring-suspension system, meant for impact absorption and the augmentation of metatarsal thrust. An angle spring affixes to the central pivot point and is external to the shoe sole. A guide and quick recoil are joined to the angle spring in a manner set to influence the central pivot point prior to the deflection of the angle spring itself. A type of resilient compression device is affixed below the ball area of the foot. This device receives the pressure of all aforementioned spring-loaded agents in conjunction with the user's weight transfer, metatarsal thrust, and any residual impact force. The timing of the compression device's load phase is such that it releases in tandem with the unloading of the angle spring. The result is an article of footwear, which works with the natural mechanics of the body to enhance comfort and ability.

Description

FIELD OF INVENTION [0001] This invention relates to footwear used to increase striding and jumping capabilities. [0002] 1. Background [0003] Previous inventions of the same sort have not succeeded in working proficiently with the natural heel impact, rear to front weight transfer, and metatarsal push. The existing inventions, which integrate this heel to toe movement (when absorbing, amplifying and returning the user's efforts), have failed to maintain a lightweight design. Lighter versions of the spring footwear tend to return energy to the same portion of the foot that it was absorbed from or—as in many cases—they merely act as a shock absorber without ever actually amplifying the user's energy. [0004] An issue that has been neglected entirely by this field is the braking properties of thrust enhancing footwear. Due to this oversight spring action footwear has not accomplished a stopping technique allowing for the toe to heel transfer of weight, which is a necessity to metatarsal ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A43B3/10
CPCA43B13/182A43B13/184
Inventor ASMUNDSON, H. CHAD
Owner ASMUNDSON H CHAD
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