Title:
Platform type welt shoe
United States Patent 2460097


Abstract:
This invention relates to improvements in platform type-welt shoes. More particularly it provides improvements in that variety of platform type- shoes- wherein..the- platform base structure includes-a. covering: element which extends over. the=sides of the platform all around the shoe and whose-...



Inventors:
Roy, Maling
Application Number:
US1348248A
Publication Date:
01/25/1949
Filing Date:
03/06/1948
Assignee:
Roy, Maling
Primary Class:
Other Classes:
36/11, 36/12, 36/30R
International Classes:
A43B9/14
View Patent Images:



Other References:
None
Description:

This invention relates to improvements in platform type-welt shoes. More particularly it provides improvements in that variety of platform type- shoes- wherein..the- platform base structure includes-a. covering: element which extends over. the=sides of the platform all around the shoe and whose- upper edge-,portion is secured to a welt strip on the shoerupper. Shoes of the mentioned variety may have either, regularly lasted, uppers or so-called sliplasted uppers but, .in, every case; a welt strip is secured- to the upper all: around= its base edge portion,. by which welt strip -a platform base structure effectively: may be secured to the upper by- lacing- or stitching or stapling- the- platform covering element to- the-welt strip. The resulting shoe-has a:welt crease around- the base of the upper comparable to the- welt crease of a Goodyear welt shoe, and the shape, of: the upper is maintained.independently-of the, means securing it to the :base structure, as distinguished from shoes: whose uppers are-shaped by being drawn over a last by the-operation, of securing the upper to; a; base -structure, wherein. .any breakage of the securing, means requires re-lasting, of the upper in: order to. repair-the-rupture.: Actually, in the type- of.shoes:towhich- the invention; relates, the upper-andywelt strip-may:be :stitched to an insole according torthe well known, Goodyear welt procedure, .although -an :insole-ordinarily is not employed and- is not necessary when, a platform base structure as herein disclosed! is employed.

Rather, it is- preferable to stitch- thec upper and welt: strip to- a- sock-lining element, or the like and to rely upon;:the platform, base-structure to supply stability to: the completed- shoe.

The platform base- structures of: the mentioned general : type-: of- shoes: to; which the: invention relates necessarily have a relatively thin tread element- which .may be: the -under *portion of an integral sheet element, extending: over the under face- and the:sides ofa an; enclosed platform and heel unit, or-which: may be a relatively thin outersole element secured to the under side of such a sheet element or: secured: over or to the inturned margins:of assheet element which covers the:sides of the;enclosed utnitbut.,which does.not extend- over' the -entir.e under face of the unit.

In. every case, the treadc: element at; the heel region has substantially the. same; thickness as the tread-element at-the forepart, the invention not being- concerned with structures wherein a heel of substantial thickness is applied under the platform unit.

With;- thefcustomaxry 'heelashape; the.relatively thin tread element at.the heel region is subjected to concentrated wear at the point and line of initial. contact of the heel portion in walking, and this region of concentrated wear frequently becomes worn long: before other portions of the tread area show any substantial effects of wear.

It is .among the objects of my present invention to provide an improved platform heel region wherein the tread element curves gradually upwardly and rearwardly from the tread plane so that the initial engagement of the heel region in walking can be a rolling contact which distributes the wear -over a substantial area of tread surface in the heel region of the tread element. Another object is to pre-shape the enclosed platform and heel unit with a desired, rearwardly and upwardly extending curvature from- the plane of the under surface of the unit, and to form the covering element for the unit, at the heel region thereof, so that it may be smoothly wrapped about the sides of the unit at the heel region, a- separate tread element being applied at the under face of-the unit having a portion extending over the-curved= surface of the covered unit at the rear of the shoe, said tread element providing a curved tread surface at the rear of the shoe nicely curving upwardly and rearwardly from the tread plane.

A further object of the inventionr is to provide ,0 a platform heel region having a tread element gradually curving upwardly and rearwardly from the tread plane, and of material having superior wearing qualities to the material of the main extent of the tread element in the shank and j3 forepart regions of the shoe.

It is, moreover, my purpose and object generally to improve platform type shoes and more especially the heel regions of the platforms of such shoes which have a platform covering element secured- to a welt strip on the shoe upper.

In the accompanying drawings: Fig. 1 is -a side elevation of a shoe embodying features of my present.invention; 45 Fig. 2 is a- rear elevation of the shoe of Fig. 1; Fig.. 3 is a. cross-sectional view on line 3-3 of Fig.. 1, on a larger scale; Fig. 4 is a top plan view of the-platform covering-sheet with a composite tread element stitched to its under:side; Fig.. 5, is a medial longitudinal cross-sectional view through the base portions of a shoe similar to that of'Fig. I but having .a modified form of tread -element which is integral and. continuous from-end to end; Fig. 6 is a cross-sectional view on line 6-6 of Fig. 5; Fig. 7 is a view similar to Fig. 5 but showing a modified form of platform-covering element which does not -extend over the entire under surface of the covered unit; Fig. 8 is a cross-sectional view on line 8-8 of Fig. 7; and Fig. 9 is a view similar to Fig. 4 but showing the modified form of platform-covering element of the shoe of Figs. 7 and 8.

Referring to the drawings, the upper 10 may be of any desired style and of any suitable shoe upper material but it preferably will be shaped and stitched on a last according to regular lasting procedures as distinguished from procedures wherein the ultimate shaping of the upper is accomplished by inserting a last into a pre-stitched upper.

However, in the shoes herein illustrated, no insole element is requisite, but only a sock-lining 12 to whose margin the lower margin of the upper 18 is stitched at 14 all around the extent of the upper. A welt strip 16 extends all around the lower margin of the upper, exteriorly thereof, it preferably being secured to the upper by the same stitches 14 which secure the upper and socklining together.

Referring to Fig. 3, the sock-lining 12 is illustrated as composite of a thin skin of leather 12' which is exposed interiorly of the finished shoe, and a sheet of canvas or duck 12", or the like, bonded to the leather skin 12'. It should be understood, however, that any suitable socklining may be employed.

The platform base structure comprises a sole and heel unit 18 which is covered by a sheet of flexible material 20 having integral extent over the entire under surface of the sole and heel unit 18, and having integral extent up over the side edges of the unit 18, excepting at the rear portion thereof where the sheet 20 is cut in a particular manner, as seen in Fig. 4, for being nicely shaped around the rear portions of the unit 18.

The sole and heel unit 18 may be of any suitable material but preferably will be formed of resilient material such as cork, or rubber, or a combination of cork and rubber, or it may be formed of felt. In any case, it will be shaped to provide a forepart sole portion of desired platform thickness, and a substantially thicker heel portion, with the under side of the unit 18 flat, or substantially so, and with the upper side gradually curving from the heel thickness to the forepart sole thickness and thereby providing shank curvature for the shoe.

The covering sheet 20 may be of any suitably strong and durable flexible material, such as fabric or one of the available plastic sheet materials, but I prefer a relatively heavy leather sheet 20 which may be provided around its margins with the spaced punched holes 22. The welt strip S6 on the upper 10 similarly may be provided with spaced punched holes 24 so that, when the sheet 20 is arranged in covering relation to the unit 8, the platform base structure may be laced to the upper !0, with the lacing 26 engaging the welt strip and the marginal portions of the covering sheet 20, with the sheet 20 covering the bot- 7 tom and sides of the unit 18, and with the socklining 12 covering the major area of the top of unit 18. As best seen in Fig. 3, the upper marginal portions of unit 18 engage under the laced welt strip 16 all around the shoe. Prefer- 7 ably an adhesive is applied between sheet 20 and the bottom surface of unit 18 and between the sock-lining 12 and the top surface of unit 18.

Shoes having structure generally conforming to the foregoing description are disclosed in my Letters Patent Nos. 2,419,785 and 2,427,798, granted respectively April 29, 1947, and September 23, 1947, the said patented constructions having covering sheets, comparable to the herein disclosed sheet 20, which constitute the tread elements of the said patented shoe constructions.

My present invention improves upon the said patented constructions by providing a novel shape at the heel region of the platform structure which avoids concentration of wear at a line of initial contact of a heel in walking, as in the case with a flat heel.

In the forms of the invention illustrated in Figs. 1-6, I blank out, or otherwise form, the covering sheet 20 in the shape as represented in S Fig. 4, but with the toe portion intact. The holes 22 may be punched in the blanking operation, or in a subsequent operation. The rear end of the blank has the generally semi-circular tab 28 cen*25 trally between the two oppositely disposed wing portions 30, each of which latter has a curved edge 30' adjacent to the tab 28. The tab is adapted to be bent or flexed toward the eye in Fig. 4, and the wing portions 30 then may be turned inward until their ends are butted together, with their said curved edges 30' engaging and following the curved edge of the tab. The wing portions 30 are adapted to be stitched together in their said butted relation, whereby they, with the tab 28, provide a generally dished closed end at the rear end of the blank.

However, before the wing portions 30 are turned inward and secured, a tread element, or outersole, is secured to the covering sheet 20. In the Figs. 1-4 form, the major portion 32 of the extent of the tread element is of one material, preferably leather, and the heel portion 34 thereof is of another material, preferably rubber or a flexible plastic material which has greater wearing qualities than the portion 32. The portions 32, 34 are lapped at 36 and the lapped portion of the heel portion 34 and the portion 32 then are stitched to sheet 20 by the row of stitches 38 which extends all around the margin of the portion 32 but which stitches only the lapped region of portion 34.

This leaves the major extent of the heel portion 34 free of sheet 20 until the ends of the wing portions 30 are butted and stitched together. In Fig. 4, the dotted lines along the ends of the wing Sportions 30 represent stitch holes.

The heel portion 34 has the rearwardly extending integral tongue 35 which next is pressed against the tab 28 and wing portions 30, after which the tongue and heel portion 34 are stitched to the sheet 20 by a line of stitching which extends through the tongue at the dotted lines 40 and through the wing portions 30 along the dotted lines 42, the line of stitching continuing at S 4 along both sides of the heel portion 34 and '" all around the margin of the portion 32. The end of the tongue 35 has two lacing holes 46 which register with the endmost hole 22 in each wing portion 30, so that the lacing 26, at the back of the shoe engages the tongue 35 as well as the over0 laid wing portions 30.

This provides a shoe having a wear distributing and resisting heel region as best seen in Figs. 1 and 2.

The Figs. 5 and 6 form is in all respects the 5 same as the Fies, 1-4 form excepting that the tread element 48 is integral and of one material, whhich may be leather or rubber, throughout. Fig. 5 illustrates the. edge to edge relation of the tab 28 and the wing portions 30 of covering sheet 20, maintained, between the unit 18- and: the: tongue 35, which is- the same in.-the Figs. 1-4 form.

Figs. 7-9 illustrate a modification in which the platform and heel unit (8 is covered by a sheet element 50 which does not extend over the entire under-surface of the unit 18 but has only marginal portions 52 which are turned under unit 18 all around the unit. A tread element 32, 34 of the Figs.. 1-4f form or a tread element 48 of the, Figs. 5 and 6 form, may be stitched to-the turned under portions.52 by rows of stitches 54 and 5P., The rear end portion of the sheet element 50 may have a tab 58 and wing portions 60 comparable to those represented in Fig: 4. The exterior effect in the Figs. 7-9 form will be the. same, as that of either of the earlier described forms, depending upon which type of tread elemen-t-is.employed. It will be apparent from the foregoing description, in connection with the drawings, that I have provided an improved platform base structure for shoes wherein the wear which customarily is concentrated at a line of initial contact of a flat heel in walking is, by my invention, distributed over a substantial area of curved heel surface because the initial contact need not always be at any one line or point of contact, and because the action is a rolling engagement which spreads the wear and minimizes the shock of the initial contact.

I claim as my invention: 1. In a shoe having an upper, a platform base structure secured to the upper, comprising a sole and heel platform unit having the rear end of its heel portion formed with convex curvature which provides a rear surface curving upwardly and rearwardly from the plane of the under surface of the heel portion substantially to the plane of the upper surface of the heel portion, a flexible sheet element covering the side edges of said unit all around the unit and extending under at least the marginal portions of the under surface of the unit all around the unit, said element at its rear portion having oppositely disposed wings butted edgewise together in covering relation to said rear curving surface of the unit, means securing said wings in their butted relationship, a tread element secured to the flexible sheet element around the forepart and in the shank and heel regions, said tread element having a rearwardly projecting tongue curving upwardly and rearwardly over said butted wings and secured along its opposite edges to said wings, a welt strip secured to the upper all around the lower edge portion thereof, and means securing said flexible sheet element to said welt strip all around the shoe.

2. In a shoe having an upper, a platform base structure secured to the upper, comprising a sole and heel platform unit having the rear end of its heel portion formed with convex curvature which provides a rear surface curving upwardly and rearwardly from the plane of the under surface of the heel portion substantially to the plane of the upper surface of the heel portion, a flexible sheet element adapted to cover the entire under surface of said unit and to extend upward in covering relation to the side edges of the unit all around the unit, said element at its rear portion being formed with a central flap and two oppositely disposed side flaps, and the side flaps being turned inward and butted edgewise together in covering. relation to said rear curving surface of the unit, a tread element underlying said flexible, sheet element and stitched thereto all around theiforepart and along both side margins of the- shank and heel regions, said tread element:.having a rearwardly projecting tongue curving upwardly and rearwardly over said central flap., and-said butted flaps and secured along its opposite edges toĆ½ said butted flaps, a welt strip secured to the: upper all around the lower edge portion, thereof, and means securing said flexible sheet: element to said welt strip all around the shoe and securing the end of said tongue to the welt strip, at:the rear end of the shoe. 3; In a: shoe having: an upper, a platform base structure secured. to the upper, comprising a sole and, heel; platform unit having the rear end of its heel portion formed with convex curvature which provides a rear surface curving upwardly and rearwardly from the plane of the under surface of the heel portion substantially to the plane of the upper- surface of 'the heel portion, a flexible sheet. element covering the edges of said unit all around the unit, including the said rear curving surface thereof, and extending under at least the marginal portions of said under surface of the unit all around the unit, a composite tread element having a forepart and shank portion of leather stitched to said flexible sheet element all around the forepart and along the sides of the shank region, and having a heel portion of material having greater wear-resisting qualities, including a rearwardly projecting tongue extending upwardly and rearwardly in covering relation to said butted wings and stitched to said wings along the side edges of the tongue, a welt strip on the lower edge portion of said upper, and means lacing the upper edge of said flexible sheet element to the welt strip all around the shoe and lacing the end of said tongue to the welt strip at the rear end of the shoe.

4. In a shoe having an upper, a platform base structure secured to the upper, comprising a sole and heel platform unit having an approximately flat under surface from end to end and having the rear end of its heel portion formed with convex curvature which provides a rear surface curving upwardly and rearwardly from the plane of the under surface of the unit substantially to the plane of the upper surface of said heel portion, a flexible sheet element covering the edges of said unit all around the unit, including the said rear curving surface thereof, and extending under at least the marginal portions of said under surface of the unit all around the unit, a tread element stitched to said flexible sheet element all around the margin of its forepart and along the opposite side margins of its shank and heel regions, said tread element having a rearwardly projecting tongue curving upwardly and rearwardly over said covered curving rear portion of the unit and stitched to the covering along the opposite side edges of the tongue, a welt strip on the upper extending all around the lower edge portion thereof, and means securing the upper edge of the flexible sheet element to the welt strip all around the shoe, and securing the end of said tongue to the welt strip at the rear end of the shoe.

5. In a platform type shoe, a sole and heel nlatform unit having its surface at the rear of the heel portion curving upwardly and rearwardly from the plane of the under surface of said unit substantially to the plane of the upper surface of said heel portion, a flexible sheet element covering the side edges of said unit and including oppositely disposed wing portions butted edgewise together in covering relation to said curving surface at the rear of the heel portion of said unit, said flexible sheet element extending into covering relation to at least the marginal portions of the under surface of said unit all around the unit, a tread element stitched all around the forepart and shank regions to the portions of the flexible sheet element which extend under the marginal portions of the unit, said tread element having a rearwardly extending portion curving upwardly and rearwardly in overlying relation to said covered curving rear portion of said unit, said rear portion of the tread element being stitched to said butted wing portions of the flexible sheet element, an upper, and means securing the upper edge of said flexible sheet element to the upper all around the extent of the latter.

6. In a shoe having an upper, a sock-lining and a welt strip secured together all around the extent of the lower marginal edge portion of the upper, with the welt strip disposed exteriorly of the upper, a platform unit underlying the socklining and having a heel portion curving upwardly and rearwardly at the rear end portion of the unit from the plane of the under surface of said heel portion substantially to the plane of the upper surface thereof, a flexible sheet element covering the side edges of said platform unit all around the unit and extending under at least the marginal portion of the. under surface of said unit all around the unit, a tread element stitched to said flexible sheet element around its said portions extending under said unit, said flexible sheet element having a substantial cut-out at its rear end portion, providing oppositely disposed wings adapted to be butted edgewise together in covering relation to said curving heel portion of the platform unit, said tread element having a rearwardly extending portion overlying said covered curving portion of the unit and stitched to said butted wings, and means securing the upper edge portion of said flexible sheet element to said welt strip all around the extent of the welt strip.

ROY MALING.

No references cited.