US2037613A - Securement of heels to shoes - Google Patents

Description

April 14, 1936. A. J. BOOK SECUREMENT OF HEELS TO SHOES Filed April 15, 1935 PI Q attozwaq- Patented Apr. 14, 1936 UNITED- STATES PATENT OFFICE an or HEELS 'ro snoss Andrew .1. Book, Bum Vista, Ohio Application April 15, 1935. Serial No. 16,502

4 Claims. (01. 36-34) This invention relates to means for securing heels to shoes and has for its object to provide a construction simple in parts, more efficient in use, and less costly to apply, than those heretofore proposed.

With these and other objects in view the invention resides in the novel details of construction and combinations of parts more fully described hereinafter and particularly pointed out in the claims.

Referring to the accompanying drawing forming a part of this specification and in which like numerals designate like parts in all the views.-

Fig. l is a vertical sectional view through the heel of a shoe illustrating the application of this invention;

Fig. 2 is a top plan view of the heel before it is applied to the shoe;

Fig. 3 is a top plan view of the locking plate associated with the heel securement; and

Fig. 4 is a cross sectional view of said plate taken as on the line 4-4 of Fig. 3 and looking in thedirection of the arrows. I

In order that this invention may be better understood it is said that heretofore there has been experienced considerable difliculty, particularly in the case of ladies shoes and slippers, in keeping the heel firmly secured to the shoe or slipper because of the relative great height of the heel, causing considerable leverage strain to be placed upon the joint between the heel and the sole. Mechanical means for securing a heel to the sole have been proposed, but such devices have been so constructed as to seriously interfere with the steps of assembling the shoe at the factory, or else have made necessary a substantial undoing of work already finished, thereby adding considerably to the cost of production. Therefore, the principalobject of this present invention is the provision of a mechanical securement which does not interfere with any of the manufacturing steps and procedure now used in shoe factories, thereby keeping the cost down to a minimum, while another important object is the adaptability of the principle of this securement to heels of varying height.

In the drawing the upper portions of a shoe have been omitted for clearness, the sole portion of the shoe as shown comprising the insole i and the outsole 2. This sole combination is provided with an opening 3 extending completely therethrough just above where the heel 4 is located, said opening being rectangular or other shape as desired, and over this opening is positioned a metallic plate 5 provided centrally with an oblong aperture 6 of dimensions to just permit passage therethrough of the oblong head 1 of the screw 8. This screw head is formed to lie in a plane oblique to the axis of the screw as shown in Fig. 1, the obliquity being in accordance with the angle made by the heel 4 with the heel portion of the sole. The portion of said plate adjacent each long side of the aperture 6 is depressed out of the plane of the plate to form the pockets 9 and I0 of a depth for receiving the ends of the oblong head of said screw, as indicated in Fig. 4, these pockets lying within the opening 3. One end wall of at least one of these pockets is formed substantially at right angles to the plane of the bottom of the pocket as indicated at H in Fig. l to establish an abutment against which an end of the screw head will contact to prevent undesired 8, said bore having an enlarged portion it at 2 the bottom of the heel to receive therein a sleevelike nut ll whose flared head is countersunk within the heel, as indicated at iii, to permit the top lift l9 to be applied and secured, as by the nail 20, in flush association with the surface of the heel. By this construction a definite shoulder 2! is provided, where the bores i5 and i6 meet, against which the nut I'l will abut. A thin fiber or leather sheet 22 is provided to cover the plate 5.

From the foregoing description it will thus be apparent that, during the manufacture of the shoe, the plate 5 may be secured in place in the insole in the insole cutting room and covered by the protective sheet 22. After said plate is thus positioned the insole is nailed to the last and goes through the lasting machine, sole laying, levelling, welt machine, trimming machine, and then to the heeling department of the factory, the pockets 9 and ID of said plate being so shallow that they will not protrude through the combined sole structure to interfere with these shoe treating and/or assembling operations.

Two or more short nails are driven by the wood heeler part way into the top of a heel and their heads out off to provide a plurality of sharp pegs, indicated at 25 in Fig. 2, which will enter the leather of the sole when the heel is applied thereto and aid in holding said heel in position during the securing operation. The head of the screw 8 is then passed through the sole opening 3 and the oblong aperture 6 of the plate 6, and. given a quarter turn to bring the head crosswise said aperture with the ends of the head lying in the pockets 9 and I0, and one end of the head abutting the wall ll of a pocket. It will be understood that the shoe is still upon the last, and the latter supported with the sole of the shoe uppermost during these heel securing operations. Glue is then applied over the top of the heel and/or over the heel seat, and the heel carefully applied to said seat with the screw 8 slipping through the bore l5. When correct registration is had, the heel is pressed against said seat whereupon the pegs 25 will enter the sole and prevent the heel from slipping out of alignment.

The shoe is then placed in a suitable machine by which necessary pressure is applied to make the heel and heel seat inseparably glued, then the nut 11 is inserted in the enlarged bore l6 at the bottom of the heel and threaded onto the screw 8 which is kept from turning by the engagement of the screw head and the wall ll of the plate pocket. In this operation the nut I! will ultimately abut tightly against the shoulder 2|, and continued turning will cause the screw 8 to further enter the nut thereby tightening the joint between the heel and the sole. After this operation the shoe is then removed from the pressure machine since the heel is permanently fastened thereto, and the shoe is then sent for attachment of the top lift I 9 after which the shoe is ready for the packing room. In no case is the length of the nut i1 greater than the depth of the larger bore I6, thereby insuring the top lift fitting smoothly over the head of said nut. All of the metallic parts are preferably made of strong rust-resisting material.

It is obvious that those skilled in the art may vary the details of construction and arrangements of parts without departing from the spirit of the invention, and therefore it is desired not to be limited to the foregoing disclosure except as may be required by the claims.

What is claimed is:

1. In a shoe the combination oi. a sole; a heel; and means for-securing said heel to said sole, said means comprising a plate having a key slot and a pocket adjacent thereto, said pocket having an end wall disposed substantially at right angles to the plane of the bottom of the pocket, said plate disposed within the confines of the sole, and a member provided with a head having locking engagement with said key slot and pocket, an end of the head abutting the end wall of said pocket to limit the movement of the head relative said plate, said member carried by said heel.

2. In a shoe the combination of a sole; a heel; and means for securing said heel to said sole, said means comprising a plate having a key slot and a pocket adjacent thereto, said pocket having an end wall disposed substantially at right angles to the plane of the bottom of the pocket, said plate disposed within the confines of the sole,

a screw provided with a head having locking engagement with said key slot and pocket, an end of the screw head abutting the end wall of said pocket to prevent undesired turning of the screw. said screw disposed within a bore in said heel, and a nut disposed in the lower extremity of the heel bore and engageable with said screw.

3. In a shoe the combination of a sole provided in the heel engaging portion with an opening extending therethrough; a plate disposed over said opening and having a portion depressed out of the plane of the plate and extending into said opening, the depressed portion of the plate provided with an oblong slot disposed centrally thereof thereby establishing a pocket on each side of the slot, an end wall of a pocket disposed substantially at right angles to the plane of the bottom of the depressed portion; a heel provided with a bore extending from top to bottom thereof in substantial alignment with the opening of said sole, said bore being enlarged in the bottom portion of the heel; a threaded member having an oblong head passing through said slot and turned a quarter revolution so that the ends of the head are in said pockets with one of the head ends abutting the end wall of a pocket to prevent further turning of said member, said member extending into the heel bore to the enlarged portion thereof; and a second threaded member disposed in the enlarged heel bore and tensioningly engaging said first named member.

4. In a shoe the combination of a sole provided in the heel engaging portion with an opening extending therethrough; a plate disposed over said opening and having a portion depressed out of the plane of the plate and extending into said opening, the depressed portion of the plate provided with an oblong slot disposed centrally thereof thereby establishing a pocket on each side of q the slot, an end wall of a pocket disposed substantially at right angles to the plane of the bottom of the depressed portion, and the bottom of the depressed portion lying in a plane parallel to the plane of the heel engaging portion of said sole; a heel provided with a bore extending from top to bottom thereof in substantial alignment with the opening of said sole, said bore being enlarged in the bottom portion of the heel, the axis of said bore being inclined to the plane of the heel engaging portion of said sole; a threaded member having an oblong head passing through said slot and turned a quarter revolution so that the ends of the head are in said pockets with one of the head ends abutting the end wall of a pocket to prevent further turning of said member, the head of said member disposed in a plane oblique to the axis of said member in accordance with the inclination of the heel bore with respect to said sole, said member extending into the heel bore to the enlarged portion thereof; and a second threaded member disposed in the enlarged heel bore and tensioningly engaging said first named member.

' ANDREW J. BOOK.

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