US1929126A - Resilient sole element for footwear - Google Patents

Description

Oct. 3, 1933. K. TUKI Er AL 1,929,126

RESILIEN'I.' SOLE ELEMENT FOR FOOTWEAR Filed March 9. 1932 f Z f ///////////////////ll/// IN veN T0195 Patented Oct.. 3, 1933 PATENT; OFFICE@ nEsmIENr SOLE ELEMENT Fon FOOTWEAR Ken Tuki, Camperdown, near Sydney, and George Palmer, Sydney,.New South Wales, Australia ,Y Application March 9, 1932,` Serial No.` 597,834,

, Y and in' Australia May47`,'1931 3 claim.V .(Cl. A36-2s) This invention relates to improvements in re-V silient combination sole and heel elements for footwear, asboots andshoes, and has for an essential objective the provision of such improvements as at .once ensure a maximum degree of comfort to the wearer, complete security to the wearer against the ingress of moisture, and an insulation or protection Ato the wearer vagainst electric shock. .l

Resilient combination for footwear as hitherto known have not been of such form and character as to ensure to the wearer the before-mentionedV desiderata to that extent made possible .by a sole and heel element according to the present invention which incor-n porates improved 'cushioning means, a cavity.

heel formation in combination with such improved cushioning means, and an integrally formed continuous inwardly projecting upper securing edge in combination with such improved cushioning means and cavity heel formation.

An article according to the invention is of rubber or like waterproof material. Its main body portion is formed as in a single moulding operation and its wearing faces are of such configuration as to effectually prevent liability of slip upon wet or greasy pavements.

A combination sole and heel element according to the invention may be permanently or detachably fitted. It may be fitted to and around the welt of a boot or shoe to which the usual outer sole has not been attached, but is preferably fit-v ted to and around the projecting welt portion or edge of the usual outer sole and will be herein so described. Y

A particular feature of the invention resides in the provision within suitable recesses or channels formed from the inner surface of the sole portion ofthe said combination sole and heel element, of a series of inset open-ended tubes as of stout rubber or like resilient material. The said tubes are so arranged as to be adapted to function to maintain separated one from the other the adjacent surfaces as of the usual outer sole of the boot or shoe and the sole portion of thesaid combination sole and heel element.

A further feature of the invention resides in the provision, in a combination sole and heel element having a. sole portion as already set forth, of a heel portion which has above its tread cavities divided by one or more integral cross members or walls.

A further feature of the invention resides in the provision in an improved resilient combination sole and heel element of the character desole and 'heele elements scribed, of an integrally formed continuous .inwardly projecting upper securing edge designed to slip over and engage with the projecting welt Vedgeof .the boot or shoe sole,` a suitablecementV being first applied if desired. Y

- VBut in order the moreV clearly to define the invention according torone` form thereof reference will now be had to the accompanying drawing;

Like reference numerals .denote like'parts in. the several views of thedrawing whichv are as followstf V Y* 'Y Figure 1 is a side elevation of a shoe to which the invention has been applied. l a Y Figure 2 is a perspective view of a combination sole and heel element according to the invention,` a part being `shown broken away to moreclearlyillustrate the arrangement of tubes and recesses therefor.

Figure 3 is a longitudinal sectional view on the line A-B of Figure 2.

Figure 4 is a broken cross sectional view on the line C-D of Figure 1.

Figure 5 is av broken cross sectional view on lthe line E-F of Figure 1.

Figures 6 and '7 are enlarged fragmentary sectional views respectively illustrating inset tubes (a) when not under compression and (b) when under compression.

In the drawing, the shoe 8 has the usual outer sole 9 to and over the projecting welt edge l0 of which latter is secured the integrally formed continuous inwardly projecting upper securing edge 11 of the combination sole and heel element, a suitable water-proof cement being first applied if desired.

The said securing edge 11 is moulded with an upper surface resembling that of a sewn leather Welt.

The said securing edge so applied to and around the said boot or shoe sole serves to at once effectually seal from the exterior atmosphere the cavities of the said fitted improved resilient combination sole and heel element.

Series of inset open-ended tubes 12 as of stout rubber or like resilient material are snugly accommodated within recesses or channels 13 Where they are lightly cemented in position and where they function to maintain separated one from the other the surface 14 of the sole 9 and the surface 15 of the sole portion of the combination sole and heel element.

The said open-ended tubes 12 have walls of suflicient thickness to offer a requisite degree of resistance to compression when the wearer is walking whilst yet being elastic to a desired degree and such degree of resistance to compression ico acter although lightly cemented in the recesses or channels provided for-their accommodation. They the said inset tubes and their associated recesses or channels preferably have a curvature substantially conforming toV and withthe shape or contour of side and toe portions of thesole and are arranged in series equidistantly'and parallelly across the breadth of the sole s'that a desired cushioning effect and springy tread may besecured no matter which portion of the sole mayv be incontiguity with the ground surface when ssrn-e is applied during the act of walking.

me heel portion 1s of the said'combination sole and heel element has above its tread 17 cavities l'rdivided by integral cross members or walls I9,` It will be obvious that when the continuously formed'securing edgell has been applied to and over the projecting welt edge 10 ofthe shoe sole 9 the lsaid cavities 18 are formed into sealed airfilled compartments which bring about a desired cushioningcffect. n l" `IIfhe wearingfi'ace vof the sole portion of the i combinationsle' "andheel element is, according 35r to that rform of the'latter which has been illustrated-byg-thedrawingherein, formed with longitudinally' disposed curved ribs (see sectional` portion of broken-away part of Figure 2 and see Figures 5, 6 and 7 of the drawing) the said curved ribs being the outer surfaces of the recesses or channels 13 and the material of which the said sole portion is composed being of the same thickness throughout. The recesses or channels 13 may alternativelyy however be formed in the thickness ofthe material whichimay be heavy or light according to requirements.

The invention is found in practice to entirely fulfill in very satisfactory manner its before-mentionedobjective, securing the desired degree of comfort in wear and cushioning effect as well as security against dump and against liability of 'slipping upon f wet or greasy pavements and against electric shock.

What We do claimis: 1`. A sole'structure including an inner portion,

'an outer portion, one of said portions being provided with recesses on its face adjacent the other portion, and a series of tubes of resilient material arranged in said recessesA and positioned between 3L A sole structure as claimed in claim 2,k

wherein the outer portion is depressed to provide the recesses, said depressionsformingfribsl on the outer surface of the sole.

KEN TUKI. Y

GEORGE PALMER.

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