Title:
Shoe sole and heel construction
United States Patent 2410019


Abstract:
My invention relates generally to shoe heel and sole construction and has for its principal objects to generally improve upon and simplify the construction of the shoe midsole construction covered by U. S. Letters Patent #2,289,180, issued to me July 7, 1942, and further, to provide a shoe...



Inventors:
Davis, John H.
Application Number:
US56682944A
Publication Date:
10/29/1946
Filing Date:
12/06/1944
Assignee:
Davis, John H.
Primary Class:
Other Classes:
36/32R
International Classes:
A43B13/37
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Description:

My invention relates generally to shoe heel and sole construction and has for its principal objects to generally improve upon and simplify the construction of the shoe midsole construction covered by U. S. Letters Patent #2,289,180, issued to me July 7, 1942, and further, to provide a shoe sole and heel structure which is inexpensive of manufacture, comparatively light in weight and which affords a high degree of comfort to wearers of the shoes, equipped with the soles and heels embodying my improved construction.

A further object of my invention is, to provide an improved sole and heel construction which will enable shoe manufacturers to greatly simplify and reduce the cost of manufacture and assembly of the sole, midsole and heel and the combining of same with the shoe upper and thereby impart to the finished shoe, ample flexibility, combined with durability and resistance to deformation strains.

With the foregoing and other objects in view, my invention consists in certain novel features of construction and arrangement of parts which will be hereinafter more fully described and claimed and illustrated in the accompanying drawing in which: Fig. 1 is a plan view of my improved shoe sole and heel structure.

Fig. 2 is a longitudinal section taken on the line 2-2 of Pig. 1.

Fig. 3 is an enlarged cross section taken on the line 3-3 of Fig. 1.

Fig. 4 is an enlarged cross section taken on the line 4-4 of Fig. 1.

Fig. 5 is a perspective view of the improved sole and heel structure ready to receive the shoe upper.

Referring by numerals to the accompanying drawing which illustrates a preferred embodiment of my invention, 10 designates the outsole, 11 the midsole and 12 the heel.

These parts may be separately formed of suitable flexible material and secured to one another by suitable means such as adhesive or stitching but, as illustrated, I prefer to form these parts from a single piece of flexible or resilient material such as sponge rubber.

Formed between the marginal edges of the outsole and inner sole is a narrow horizontally disposed channel C, which receives the lower edge of the midsole and heel cover, as will be hereinafter more fully described.

The thickness of the heel 13 is considerably greater than the combined thickness of the outsole and midsole and the forward end of said heel curves gradually downward until the upper surface thereof joins the upper surface of said midsole.

Formed in the heel and midsole is a recess 14, the bottom of which lies in the same plane with the top of the outsole and the side face of said recess lying substantially parallel with the outside faces of said midsole and heel.

This recess is completely filled with a body 15 of lightweight fibrous or comminuted materials or substances, as felt, cork, or a mixture thereof, sponge rubber, fabric, paper, cellulose or the like, the fibres or particles being secured to each other with a suitable adhesive, thus forming a onepiece flexible resilient filler body which adds materially to the comfort of the wearers of the shoes equipped with the improved soles.

This filler body may be formed to proper shape and when dry, placed in the recess 14, or the material forming the body while in plastic or semiplastic condition, may be placed in the recess and permitted to dry therein.

In order to insure retention of the filler body 15, within the recess, a narrow flange 16 may be formed around the upper edge of recess 14 so as to overlie the upper outer edge of the filler.

Overlying and secured to the side faces of the midsole and heel by adhesive, is a cover 17, of fabric or the like, the lower edge thereof being secured in channel C to the upper faces of the midsole and heel and to marginal portions of the filler body 16 (see Fig. 5).

The sole and heel member thus constructed, may be easily and quickly associated with and secured to the shoe upper and combines therewith to provide a simple, flexible lightweight and comfortable shoe of low manufacturing costs.

It will be understood that minor changes in the size, form and construction of the various parts of my improved shoe sole and heel structure may be made and substituted for those herein shown and described without departing from the spirit of the invention, the scope of which is set forth in the appended claims.

I claim as my invention: 1. In a shoe sole and heel structure, the combination with a one piece body of flexible resilient material comprising, an outsole, midsole and heel, the height of said heel being substantially greater than the combined heights of said outsole and midsole, said heel and midsole being recessed so as to provide a continuous upstanding marginal wall, there being a continuous groove formed between the marginal portions of said outsole and m5 midsole and an inwardly presented flange on the upper portion of said marginal wall, of a homogeneous filler body of light weight granular material completely filling said recess with the upper faces of said upstanding wall, and flange lying flush with the upper face of said filler body.

2. The combination as set forth in claim 1, including a flexible member covering the side faces of said midsole and upstanding wall, the lower edge of which covering member being secured in said groove and the upper edge overlying and being secured to the upper edges of upstanding wall, said flange and to the adjacent portions of said filler body.

JOHN H. DAVIS.