US3164912A - Rubber heel with circular adjustable rear section - Google Patents

Description

Jan. 12, 1965 B. GILOWITZ 3,164,912

RUBBER HEEL. WITH CIRCULAR ADJUSTABLE REAR SECTION Filed March 10, 1964 Fig./ Fig. 2

INVENTOR. Ben 0mm GWoM/z ATTORNEY 1 Another object is to provide a RUBBER HEEL My invention relates to cushion or so-called rubber heels for shoes and particularlyto those of the type in which the rubber heel comprises a main or front section formed at its rear with a recess to receive a circular rear section that can be rotatively shifted or. adjusted United States Patent after it wears at one point in order that a fresh portion of the section may be disposed at the point of greatest wear. t

Rubber heels of the above indicated type are disclosed in such patents as my Patent No; 2,669,037 February 16, 1954, and also in my pending application Serial No. 289,820, filed June 24, 19.63, butI believe all of such rubber heels have, been made of. soft rubber and cured in a mold. Making the sections of the rubber heel in that manner requires elaborate equipment. andis both time consuming and expensive. Furthermore in the production, by that; method, ofjrubber heels with shiftable circular rear sections, theformat-ionof a semi-circular recess at the rear of the body or'front sectionof the heel leaves at the sides ofthatsection two rearwardly tapered wings which have a tendency to spring away or be pulled away fromthe circularsection when a shoe ;having;such a heel is-being worn. The semi-circular reces's is formed inv the bottom face; of the "front section, and.;becau se of that construction,.-it has been necessarytoimake heels with circular .rear sections thicker than the} standard thickness ,of 78" 'of the usuabrubber heels. In myabove" 3,164,912 Patented Jan. 12, 1965 ice view, the invention resides in .the novel combinations and arrangements of pants and the novel features of construction hereinafter described and claimed, and illustrated in the accompanying drawings which show the present preferred embodiment of the invention.

In the drawings: v

FIG. 1 is a side elevational View ofthe a portion of a shoe showing the improved heel applied thereto;

FIG. 2 is a bottom plan View; I

FIGS. 3 and 4 are enlarged detail sectional views talgen respectively on the lines 33 and 4-4 in FIG. 2;

FIG. 5 is a perspective view of the circular rear sec tion; and s s FIG. 6 is a similar view of the front or body section.

Referring more in detail tothe drawings the letter S represents a shoe or boot with a leather heel portion H on which my improved rubber heel 10 is suitably fastened.

The heel 10 comprises a front or body section 11 and a circular rear section 12. Both of these sections are of such construction that they -may be made by simply stamping them fron 1 a flat sheet of material by means of suitably shaped metal dies. The material will, of cours-e,'be a rubber or rubber-like composition which will have the desired resilience and uniform thickness of A3",more or less. The front sectionll will have the outline of the leather heel H to which it is-applied, and

in its rear portion is formed a substantially semi-circular mentioned application I have, disclosed a heel of standard d thickness Witha circuI-anrear section, andto prevent the two tapered side portions or wings for beingpulled or torn away from the circular rear. section, I have shown them connected'by a transverse strap. However that structure requires the molding. and curing of the two sections; and hence the cost of producing the;:;heel is much greater than it would be if the two sections' are made by die-'stampingthem from-suitable sheet material.

My invention contemplates a rubber heel of standard thicknesswith a circular rear section, in which both sections may be formed by die-stamping them from suitable cushioning or rubber-like sheet material, and inwhich the two sections whenassembled will be so interlocked that the wing portions of the front section willbe held against being; pulled away from the rear section.

One object of the invention is to provide a rubber heel of the above stated character which may be produced at a much lower cost than prior heels with circular rear sections. 7

rubber heel of this character in which the interlock between the sections comprises two opposed and unconnected tenon-like arms that project inwardly from the tapered side portions. or wings of the front section and have enlarged ends shaped to snugly fit similarly shaped notched formed at diametopening or notch13 and two opposed inwardly extending arms'14. The formation of the notch 13 leaves the front section 11, with tapered rearwardly extending side portions'or wings 15 from the end of which the arms 14 projects Ldiametrically;of the semi-circular notch or so that approximately. one halfof it will snugly fit the opening 13. Formed in the edge. of the s'ection"12 at diametrically opposite points are cutv out portions or notches" 16 of the same size and shape as the arms 14 so that when thefitwo' sections areassembled as shown in FIG. 2,1thearms-willbesnug1y' fit inxthe notches.

For the purpose of'so interlocking theltwo sections that the wingsor tapered 'side portions 15 cannot move outwardly or be pulled away from the rear section, the arms 14 at their free end portions are enlarged, that is,

' they arelaterally wider than-at their juncture with the arms 14. Preferably, arid as illustrated in the drawing,

rically opposite points in fthe edge of the circular rear.

. section, so that the latter serves to elfectively'p revent the wings from moving outwardly. j With the above and other objects-and advantages in they are wedge-shaped in outline to form trapezoidal tenons that have their widest portions 1"! at the ends of the arms. "Thus, when the arms are seated in the similarly shaped notches 16, the arms cannot be pulled with the associated wing 15. The fiat free ends of the opposed arms are parallel and the greatest diameter or length of the arms extends diametrically of the semi- ,circular opening 13.

The improved "rubber heel may be fastened to the leather heel in any desiredmanner. The front section 11 may have a suitable number of nail holes 18 to receive the usual fastening nails 19, and if desired similar nail holes may be formed in the arms or tenons 14. The removable rear section 12 is preferably fastened by a screw 21 passed through an opening 22 formed in the center of the section and threaded into the leather heel H, as shown in FIGS. 3 and 4. If desired, two nail holes 23 may be formed in the section 12 at diametrically opposite points in the a plane 90 from the diametrical plane of the notches 16, to receive nails 24. The several screw and nail holes may be punched or other- -wise formed so that the head of the fasteners will be countersunk.

It will be understood that when the rear portion of the bottom face of the section 12 is worn down, the screw 21 is removed and the nails 24 pried out so that the section 12 may be removed, then rotated 180 and replaced and refastened. The same procedure may be carried out with the rear section 12 in an inverted position, and hence the rear section will have a long useful life.

It will be seen that since the two sections may be formed from a relatively hard'but somewhat resilient rubber or rubber-like sheet material already cured, by means of suitable dies in a punch press, the improved rubber heel may be produced at a relatively small cost; and that the structure of the sections is such that the circular rear section will effectively hold the tapered side or wing portions against any lateral outward movement. The interlocking connection between the two sections 11 and 12 is such that when they are assembled they will be effectively held together and may be not only sold in that condition but also applied to the leather heel while so assembled. While the structure of the heel is such that it may also be produced by curing in a mold, the cost of manufacture is much less than when the parts are stamped out of suitable sheet material.

From the foregoing, taken in connection with the accompanying drawing, it will be seen that novel and advantageous provision has been made for carrying out the objects of the invention, and while preferences have been disclosed, attention is invited to the possibility of making variations within the scope of the invention as claimed. a

I claim: I

1. A rubber heel of the type having a front bodyv section and a rotatively shiftable circular rear section, and

in which both sections are made from cushioning sheet (b) two arms extending inwardly from the rear end portions of said wings and disposed relation diametrically of said opening,

(B) a circular rear section having a radius corresponding to that of said semi-circular opening and also having in its edge diameterically opposite notches shaped to snugly receive said arms when half of said rear section is sealed in said opening,

(0) the free end portions of said arms remote from their connection with said wings being laterally enlarged to provide an interlocking connection between the two sections that will prevent said arms from being pulled endwise out of said notches.

2. The rubber heel of claim 1 in which said arms are dovetail-shaped tenons with their widest portions at the free extremities of said arms.

3. A rubber heel of the type having a front body section and a rotating shiftable circular rear section, and in which both sections are made from cushioning sheet material of uniform thickness, and said heel comprising in combination (A) a front section having (a) at its rear a substantially semi-circular opening extending entirely through the section and forming two opposed rearwardly tapered side wings,

(12) two arms of generally quadrangular outline extending inwardly toward each other from the opposed rear end portions of said wings, with the longitudinal axes of said arms disposed diametrically of said opening,

(0) said arms having flat and parallel free ends and each of said arms having flat sides that converge toward each other from its flat end toward the juncture of the arm with its associated wing, and

(B) a circular rear section having a radius corresponding to that of said semi-circular opening and also having in its edge diametrically opposite notches'of the same shape as said arms and of a size to snugly receive said arms when half of said rear section is seated=insaid opening, whereby when the two sections are assembled, the 'interlocking'engagement of said arms with said notches will prevent said arms from being pulled endwise out of said notches and thus prevent the wings from moving outwardly away from each other.

References Cited in the file of this patent UNITED STATES PATENTS 789,089 Frank --T--- May 2, 1905

Claims (1)

1. A RUBBER HEEL OF THE TYPE HAVING A FRONT BODY SECTION AND A ROTATIVELY SHIFTABLE CIRCULAR REAR SECTION, AND IN WHICH BOTH SECTIONS ARE MADE FORM CUSHIONING SHEET MATERIAL OF UNIFORM THICKNESS, SAID HEEL COMPRISING IN COMBINATION (A) A FRONT SECTION HAVING AT ITS REAR (A) A SUBSTANTIAL SEMI-CIRCULAR OPENING EXTENDING ENTIRELY THROUGH THE SECTION AND FORMING TWO REARWARDLY TAPERED SIDE WINGS, AND (B) TWO ARMS EXTENDING INWARDLY FROM THE REAR END PORTIONS OF SAID WINGS AND DISPOSED RELATION DIAMETRICALLY OF SAID OPENING, (B) A CIRCULAR REAR SECTION HAVING A RADIUS CORRESPONDING TO THAT OF SAID SEMI-CIRCULAR OPENING AND ALSO HAVING IN ITS EDGE DIAMETERICALLY OPPOSITE NOTCHES

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