US2973557A - Shoes - Google Patents

Description

March 7, 1961 N. HANSJOSTEN 2,973,557

SHOES Filed July 2,, 1956 INVENTOR.

% Jillian/g0 6 nited States Y The present invention relates to a shoe and an apparatus for making the same.

The invention originates from 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 revulcanized 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. V

Heretofore, such soles could be produced with heels, but the heels could only be quite low since the heels must 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 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 is so formed that the outer sole, rearwardly of the tread part is reduced in thickness in the zone of the heel and such zone has secured thereto, a separate heel of a material lighter and harder than the sole, with the heel being covered with the proper material.

A further object is to provide a shoe which possesses the characteristics of a leather shoe but is substantially lighter and has a flexible soft rubber outer sole thereby providing a more comfortable shoe in that theintermediate cushion sole is located beneath the ball of the foot.

Further objects and advantages of the invention will become apparent from the following specification and attached drawings.

The invention will be further described with reference to an example illustrated in the accompanying drawings.

Fig. l is a longitudinal section of the mold with an elevation of a shoe according to the invention;

Fig. 2 is a section on the line II-II of Fig. 1;

Fig. 3 is a plan view of the heel portion of the mold seen in the direction of the arrow III in Fig. 1, and

Fig. 4 is a section on the line IV-IV of Fig. 1.

A usual baseplate 5 is shaped on upper surface 6 which 2,973,557 Patented Mar. 7, 1961 baseplate, while arch 10 and an outer sole or tread surface 11 are at approximately equal angles to the horizontal. The outer sole 11 is positioned on the baseplate 5, it projects beyond the actual intermediate sole '16 which terminates at the front at 13 not only here but throughout its whole periphery and is covered by a frame 14 which is shaped corresponding to the upper surface of the baseplate 5. At its inner boundary, the frame has a thickness 15 which corresponds to thickness 16' of intermediate sole 16. This thickness according to the invention decreases in the frame and also in the intermediate sole 16 towards the rear, that is, towards the heel, while the outer sole 11 in the heel part also has its thickness reduced so that it runs out to nothing at the rear end. More specifically, the heel part 8 is a part of the tread 11, arch 10 and is in effect the rear end of the outer sole. It will be noted that the heel part terminates immediately before the contact line between the base plate 5 and the frame part 14 as illustrated in Fig. 1.

Heel 17 shown in broken lines is formed of a lighter and harder material than the sole and is covered with a material similar to the upper and nails 17a inserted from the inside of the shoe connect the heel part 17 to the rear end of the shoe.

Fig. 2 shows the base plate 5 and the frame 14, as well as a rib 18 on the base plate, within which the outer sole 12, illustrated in Fig. 1, is disposed, with its rear narrower heel part 8.

It is to be understood that in lieu of the specific means shown for connecting the heel to the shoe, inlays may be provided in the insole or resilient arch inlays can extend into the heel part and cardboard arch members with steel springs can be used for the latter purpose. If such inlays are provided with perforations, the material defining the sole can pass through the inlay at these points whereby an efiective connection between the sole and inlay is assured. This latter effect is further assisted if the inlay extends wholly or partially into the sole or the part of the sole which is moldable under heat.

Additionally, the sole can be narrower in the heel part than the heel, per se, with the heel being provided with a corresponding recess. By virtue of the same, the heel margin comes into direct contact with the upper whereby the sole in this part is no longer visible on the outside of the shoe.

Also, it is to be understood that the invention can be used for shoes in which the connection between the sole and the upper is effected by an adhesive or other means.

The invention is not to be confined to any strict conformity with the showings in the drawings, since changes or modifications can be made therein so long as such changes or modifications mark no material departure from the annexed claims.

I claim:

1. An apparatus for making shoes having a high arch and adapted to have a high heel secured thereto provided with an outer sole, an intermediate sole and an upper and inner sole joined to the intermediate sole, comprising a base plate having its upper surface shaped to form the bottom of the outer sole, a frame positioned on the base plate and cooperable with said upper surface of said base plate to provide the outer edge of the intermediate sole, said frame having a molding edge extending about the perimeter of the shoe and the height of the molding edge decreasing towards the rear to correspond to the thickness of the finished sole, a rib at the rear part of said base plate extending to the periphery of the heel part of the shoe, and the height of said rib corresponding to the thickness of the rear part of the outer sole.

2. An apparatus as claimed in claim 1, in which the References Cited in thefile of this patent- UNITED STATES PATENTS 13111161116161- se ezz, 1914 Hill Apr. 20, 1915 McGhee Jan; 5, 1932 Ridd'ock Mar; 27, 1934 4. Milner Feb. 26, 1935 Nevills Oct. 5, 1943 Gottschalk Dec. 3, 1946 Rollman Nov. 23, 1954 FOREIGN PATENTS Great Britain Nov. 6, 1934 Italy Aug. 26, 1932

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