US 2505773 A
Description (OCR text may contain errors)
May 2, 195@ o. J. HOWE 2,505,773
ORTHOPEDIC SHOE Filed Jan. 9, 1948 l i JNVENTOR. /90' @Je Patented May 2, 1950 UNITED STATES PATENT OFFICE y ORTHOPEDIC SHOE Oliver j. HoweyNorth Weymouth, Mass. f
Application Januaryll, 1948, Serial No. 1,4224
s claims. l(cl. sts- 71) f 4The inventionnescnbed herein, if patented, may,bemanufactured andused by or for the Government i011 Vstiller...Ilmental purposes 4,without :the payment to me of anyv royalty thereon.
' provision-of aninsoleor build-up around-which the shoes-,may be built `and which will flex or break at the exact point Where the shoe itself would ordinarily flex or break so as to permit the shoe to function in the conventional manner.
A still further object of the invention consists in providing an orthopedic attachment for shoes which is of simple and inexpensive construction and which may be readily and simply fabricated without the need of expensive machinery or highly skilled labor.
Other objects and advantages of the invention will be apparent from the following description when taken in connection with the accompanying drawings, in which Figure 1 is a perspective view of an improved orthopedic shoe with parts broken away to more clearly illustrate the insole or build-up;
A further object ofthe invention resides-in the ilo Figure 2 is a longitudinal sectional view through 30 the insole or buildup";
Figure 3 is a transverse sectional view taken along the line 3 3 of Figure 2; and
Figure 4 is a perspective view of the two sections of the insole partly separated to disclose the contour of the adjoining edges.
The orthopedic shoe disclosed herein comprises an inner sole or build-up I around which is built a more or less conventional shoe 2; the shoe being conventional except that the upper is of sufficient dimensions to provide for the relatively thick insert I and yet leaves suiilcient space for the reception of the wearers foot.
The insole is formed of two relatively thick sections of cork having a combined area sumcient to extend the full length and width of the shoe which is built therearound. The front section of the insert or build-up is indicated by the numeral 3 and the rear section by the numeral t.
The lengths of the sections 3 and 4 are so proportioned that they meet at the point of flexing orfbreak in the ordinary shoe and the sections are hingedly connected by means of a flexible strip 5, preferably of leathers which extends throughout the length and width of the sections (Granted tindex; thact .,f `March 13,1 asl ,.5; amended April 30, 1928;!370 Q GL 757) sections by adhesive or other preferred means. It is understood, of course, that the upper surfaces'of the sections 3 and 4 are shaped to the contour of the last used in forming the shoe and that the strip 5 which hingedly unites the sections is also molded to the last. Y
At their adjoining edges, that is, at the uppSr portion thereof, recesses 6 and 1 are formed in the sections 3 Vand 4, such recesses extending transversely throughout the width of the sections and having their walls tapered downwardly so as to conjointly form a wedge-shaped cavity extending approximately to the middle Aof the height of the insole, to permit relative movement between the sections. Mounted within the cavity formed by the complementary recesses 6 and '1 is a block of elastic material 8 preferably of rubber. This resilient block extends transversely of the insole throughout the Width of the latter and has its side Walls adhesively secured to the Walls of the recesses E and l and its upper surface adhesively secured to the undersurface of the exible leather strip 5. This resllient block 8 serves a dual function, that is, it fills the gap provided by the recesses e and 'i to normally maintain the cork sections in alignment with the last bottom or strip 5 and also to serve as a cushion to the bend or break in the shoe.
A tongue and groove joint is provided in the lower portion of the insole at the hinge line thereof and in the present illustration the tongue, which is indicated by the numeral 9, is formed on the inner edge of the front section 3 and a cooperating groove IIJ is formed on the inner` edge of the rear portion 4. This tongue and groove connection, as clearly indicated in Fig. 4, extends entirely across the Width of the insole and serves to maintain the two sections in alignment by preventing a skewing action therein when in use.
The purpose and function of this orthopedic shoe including the build-up or insole 3-4 will be readily understood by those skilled in the art and need not be dwelt upon other than to say it serves to correct or compensate for certain deformities of the wearer; that it is of simple and relatively inexpensive construction, and that it has incorporated therein a simple yet eective hinge at the flexing or break line to conform the action of the insole to the action of the shoe in which it is installed.
While the sections 3 and l have been defined in the foregoing specification and in the claims as being formed of cork and as being relatively thick, it is to be understood that other light ma- 3 and 4 and is secured to the upper Vsurface of the 55 terial having characteristics approximating those 3 of cork may be substituted, and that the term relatively thick should be construed to mean a thickness at least greater than the thickness of the ordinary conventional insoles used in conventional shoe structures.
I claim: Y 1. An insole or build-up for orthopedic shoes comprising two sections of relatively thick cork which conjointly extend the full length and width of a shoe and meet at the flexing point or break of a shoe, a tongue and groove'jointbe tween said sections at the meeting edges thereof, and a strip of iiexible material secured' to the upper surfaces of said sections toserve as a hinge therefor and extending throughout the length and breadth of said sections.
2. An insole or build-up for orthopedic, shoes comprising two sections loit-relatively thick cork which conjointly extendthe fulllength andwidthof a shoe and meet at the flexingpoint or break" ofl a' shoe, thev adjoiningy edges of said sections being provided with complementary recesses `forming a transverse cavity in the=top=portion of .I together.
3. An insole or build-up for orthopedic shoes comprising; two sections of relatively thick cork which conjointly extend the full length and width Y of a shoe and meet at the flexing point or break" of a shoe, the adjoining edges of said sections being provided with complementary recesses form` ing a transverse cavity in the top portion of the insole, a block of resilient material secured in said cavity, a transverse tongue on the inner edge of one of said sections, the other section provided with a transverse groove receiving said tongue, and a leather strip conforming to the foot and to thezupper surfaces of said sections and secured to said surfaces to provide a hinge therefor.
OLIVER J. HOWE.
REFERENCES CITED The following references are of record. in the le; of this patent:
UNITED STATES PATENTS Y Date Number Name 354,832' Fretz Dec; 21', 1886 694,872 Lockett Mar. 4, 1902 1,053,442? Rouse Feb. 18; 1913 2,008,207 Greenberg July 16, 1935 2,304,957 Roth Dec. 1.5,- 1942 2,340,027 Story Jan. 25, 1944 FOREIGN PATENTS Number Country Date 4,701 Great Britain 1877 13,152 Germany' Marv 21, i881 352,013
Germany Apr; 18, 1922