US3082551A - Shoe having an outsole of rubber and the like and a stylish heel - Google Patents

Description

March 1963 HANSJOSTEN 3,082,551

SHOE iaAvI'Nc AN'OUTSOLE 0F, RUBBER AND THE LIKE AND A STYLISH HEEL Original Filed July 2, 1956 '2 Sheets-Sheet 1 [NVENTOR ZSZ W063? March 26, 1963 N. HANSJOSTEN 3,08 SHOE HAVING AN ouwsouz 0F RUBBER E AND THE LIKE AND A STYLISH HEEL Original Filed July 2, 1956 '2 Sheets-Sheet. 2

INVENTOR M HQJZQ/Odten United States Patent 3,682,551 SHGE HAVENG AN OUTSQLE 0F RUBBER AND THE LIKE AND A STYLISH HEEL Nikoians Hansjosten, Pluwig, Kreis rier, Germany Griginal appiieation July 2, 1956, Ser. No. %,516, now Patent No. 2,973,557, dated Mar. 7, 1961. Divided and this application Mar. 25, 1960, Ser. No. 17,694 Qlairns priority, application Germany Early 5, 19:55 5 Claims. (Cl. 3614) The present invention relates to a shoe, and is a division of my co-pending application Serial No. 595,516, filed July 2, 1956, now Patent No. 2,973,557 granted March 7, 1961.

The invention is an improvement in shoes including an upper of any suitable material, such as leather, fabric or the like to which is sewn an insole with the seam extending outwardly and the upper being positioned on a last. A prevulcanized outer sole of rubber is located in a special mold corresponding to the shape of the sole and an unvulcanized rubber mix is disposed on the outer sole and forms the intermediate sole. The intermediate sole functions to reinforce the outer sole as well as provide a cushion, and the intermediate sole during vulcanization joins the outer sole and the upper.

Heretofore, such shoes could only be produced with very low heels, since the heels had to be made of rubber. While such shoes could be used as houseshoes with the so-called block heel, a fashionable, stylish, street shoe could not be produced by the prior art techniques.

The salient object of the invention is to produce shoes with a high instep in which a heel of beautiful and stylish shape is employed, and which heel is preferably of wood covered with the same material as the upper, with the heel preferably directly joining the upper so that the material covering the heel merges directly into the material of the upper with no intermediate layer being interposed therebetween.

Another object is to provide a shoe of the type wherein the upper, insole and outer sole are joined by vulcanization or the like, and which is so formed that the intermediate sole, rearwardly of the tread part of the shoe is reduced in thickness in the zone of the heel and such zone having secured thereto, a separate heel of a mate rial lighter and harder than the material of the outer sole, with the heel being covered with the proper materia A further object is to provide a shoe which possesses the characteristics of a leather shoe, but which is substantially lighter and has a flexible, soft rubber outer sole thereby providing a more comfortable shoe in that the intermediate cushion sole is located beneath the ball of the foot.

Yet another object of the invention is to provide a shoe of the type described, with a resilient reinforcing means which extends through the shank portion of the sole and at least partially throughout the heel portion of the shoe and the reinforcing means having perforations therein enabling a tight connection to be effected between the reinforcing means and the intermediate sole.

Further objects and advantages of the invention will become more readily apparent to one skilled in the art from a study of the following specification and attached drawings, wherein:

FIGURE 1 is a vertical sectional view of a mold and shoe, with the heel and securing means being shown in dotted lines,

FEGURE 2 is a sectional view taken along the line IIII of FlGURE 1, the view looking in the direction of the arrows,

FIGURE 3 is a plan view of a fragment of the heel 3 ,082,551 Patented Mar. 26, 1963 portion of the assembly shown in FIGURE 1, the view looking in the direction of the arrow III,

FIGURE 4 is a fragmental vertical longitudinal sectional view of a shoe provided with a reinforcing means, and,

FIGURE 5 is a plan view of the reinforcing means, per se, shown in FIGURES 1 and 4.

Referring more particularly to the drawings, and more particularly to FIGURE 1, there is illustrated a shoe having a high instep. The shoe includes an upper 10, an insole 11 suitably secured to the upper, an intermediate sole 12, an outer sole 13, and a heel 14. As previously mentioned, the upper It) may be of leather, fabric, or other similar materials, while the outer sole 13 is prevulcanized rubber, and the intermediate sole 12 an unvulcanized rubber mix. The heel 14 is formed from a lighter and harder material than the outer sole, such as wood, and is covered with a material M similar to the material forming the upper.

The molding components for forming the shoe comprise a base plate 15, shaped on its upper surface, as shown generally at 16, to correspond to the lower surface of the shoe. To save material in the formation of the base plate 15, that area of the surface 16 of the base plate which forms heel part 17 is substantially horizontal, or in other words is parallel to the bottom surface of the base plate 15. It can be seen from FIG. 1 that portions of the surface 16 which form shank 18 and tread surface 19 of the outer sole 13 are disposed at substantially equal angles to the horizontal when the area of the base plate forming the heel part 17 is horizontal.

The outer sole 13 is positioned on the base plate 15, and its periphery projects beyond the intermediate sole at the forward end as shown at 29. A'frame 21 having a configuration which corresponds to the upper surface of the base plate 15 is positioned on the perimeter of the outer sole, and at its inner boundary, the frame has a thickness denoted 22 which corresponds to thickness denoted 112' of the intermediate sole 12*. The thickness of the frame 21 as well as that of the intermediate sole 12 decreases from front to rear, and the heel part of the outer sole tapers to a very reduced cross section.

In FIGURE 2, it will be noted that the base plate 15 is provided with an upstanding rib 23, within which the outer sole 13 is disposed with its rear narrower heel part.

The heel part is in effect a portion of the tread 19 and shank 18, and is thus the rear end of the outer sole. The heel part terminates immediately before the contact line between the base plate 15 and the frame part 21, as shown in FIGURE 1. To secure the heel 14 to the shoe, nails or the like 24 are inserted from the inside of the shoe to connect the heel to the rear end of the shoe.

As shown more clearly in FIGURES 4 and 5, the reinforcing means includes a cardboard shank 3% provided with a resilent shank stiffener 31, which reinforcing means extends throughout the shank portion of the intermediate sole 12 and into the heel portion. The cardboard shank can be provided with perforations 32 which enable the material of the intermediate sole to flow therethrough to effect a suitable connection between the reinforcing means and the intermediate sole.

Furthermore, the sole may be narrower in the heel part than the heel 1 and the heel part is provided with a complemental recess. In view of this arrangement, the heel margin comes in to direct contact with the upper so that the sole in this zone or area is no longer visible on the exterior of the shoe.

It is also to be understood that the connection between the sole and the upper may be accomplished by an adhesive or other means.

Instead of the intermediate sole and outer sole being of rubber and rubber-like material, such components may be of synthetic plastic material, so that the components may be joined by welding. By virtue of the reinforcing means and the perforations in the shank thereof, there is provided an intimate connection between the reinforcing means andthe intermediate sole thereby permitting the thickness of the intermediate sole to be reduced in the area of the heel part. Thus, the sole may be visible exteriorly without detracting from the appearance of the shoe.

It is to be understood that the invention is not to be confined to any strict conformity to the drawings, but changes and modifications may be made therein, so long as such changes or modifications mark no material departure from the spirit and scope of the appended claims.

What is claimed is:

1. A shoe comprising an outer sole of fiat rubber, synthetic material and the like of substantially uniform thickness, said outer sole having a tread part, a shank part and a heel part, an upper, an insole, means joining the upper and the insole, an intermediate layer of plastic unvulcani zed material between the joined upper and insole and the outer sole adapted to provide an intermediate cushion sole, said intermediate layer rearwardly of said tread part and adjacent the heel part of the outer sole being tapered in thickness, a resilient reinforcing means located within the intermediate layer and having a length sufiicient to extend throughout the shank part and at least partly into the heel part of the outer sole, said outer sole and intermediate layer upon vulcanization coacting so that the intermediate layer bonds the outer sole to the joined upper and insole and also produces a tight union between the intermediate sole and the resilient reinforcing means, a heel member of lighter and harder material than the outer sole, material similar to the upper covering the 'heel member, and nails inserted from inside the shoe securing the heel member to the heel part of the outer sole.

2. A shoe comprising an outer sole of fiat rubber, synthetic material and the like of substantially uniform thickness, said outer sole having a tread part, a shank part and a heel part, an upper, an insole, means joining the upper and the insole, an intermediate layer of plastic unvulcanized material between the joined upper and insole and the outer sole adapted to provide an intermediate cushion sole, said intermediate layer rearwardly of said tread part and adjacent the heel part of the outer sole being tapered in thickness, a resilient reinforcing means located Within the intermediate layer and having a length sufiicient to extend throughout the shank part and at least partly into the heel part of the outer sole, said outer sole and intermediate layer upon vulcanization coacting so that the intermediate thetic material and the like of substantially uniform thickness, said outer sole having a tread part, a shank part and a heel part, an upper, an insole, means joining the upper and the insole, an intermediate layer of plastic unvulcanized material betwen the joined upper and insole and the outer sole adapted to provide an intermediate cushion sole,

said intermediate layer rearwardly of said tread part and adjacent the heel part of the outer sole being tapered in thickness, a resilient reinforcing means located within the intermediate layer and having a length sufficient to extend throughout the shank part and at least partly into the heel part of the outer sole, said outer sole and intermediate layer upon vulcanization coacting so that the intermediate layer bonds the outer sole to the joined upper and insole and also produces a tight union between the intermediate sole and the resilient reinforcing means, a heel, and means connecting the heel to the heel part of the outer sole.

' 4. The shoe as claimed in claim 3, in which said resilient reinforcing means include a cardboard shank provided with perforations which serve to produce the tight union between the intermediate cushion sole and the resilient reinforcing means.

5. The shoe as claimed in claim 3, in which the heel part of the outer sole is narrower than the heel and the heel is provided with a corresponding recess so that the heel margin comes into direct contact with the upper.

References Cited in the file of this patent UNITED STATES PATENTS 2,024,729 Gustin Dec. 17, 1935 2,255,177 Lyness Sept. 9, 1941 2,758,397 Riggs Aug. 14, 1956 2,813,355 Gustin Nov. 19, 1957 2,817,166 Riggs Dec. 24, 1957 2,838,855 Maccarone June 17, 1958 2,872,746 Maccarone Feb. 10, 1959 2,976,624 Rollman Mar. 28, 1961 FOREIGN PATENTS 1,104,145 France June 8, 1955

Claims (1)

1. A SHOE COMPRISING AN OUTER SOLE OF FLAT RUBBER, SYNTHTIC MATERIAL AND THE LIKE OF SUBSTANTIALLY UNIFORM THICKNESS, SAID OUTER SOLE HAVING A TREAD PART, A SHANK PART AND A HEEL PART, AN UPPER, AN INSOLE, MEANS JOINING THE UPPER AND THE INSOLE, AN INTERMEDIATE LAYER OF PLASTIC UNVULCANIZED MATERIAL BETWEEN THE JOINED UPPER AND INSOLE AND THE OUTER SOLE ADAPTED TO PROVIDE AN INTERMEDIATE CUSHION SOLE, SAID INTERMEDIATE LAYER REARWARDLY OF SAID TREAD PART AND ADJACENT THE HEEL PART OF THE OUTER SOLE BEING TAPERED IN

Images