US1341387A - Attachable heel - Google Patents

Description

G. SCHRADE.

Patented May 25, 1920.

PATENT. OFFICE,

GEORGE SCHRADE, or NEW YORK, n. Y.

ATTACHABLE HEEL.

Specification of Letters Patent.

Patented May 25, 1920.

Application filed January 23, 1919. Serial No. 272,695.

To all whom it may concern:

Be it known that I, ,GEORGE SCHRADE, a citizen of the United States, residing at New York, in the county and State ofNew York, have invented certain new and useful Improvements in Attachable Heels, of which the following is a full, clear, and exact specification.

This invention relates to attachable heels for shoes and especially to-leather top lifts and means for attaching them to the shoes.

The invention contemplates the use of holding pins to be secured to the shoe and adapted to be engaged with socketsformed in the top lifts or attachable heel members with ease for'retaining the latter to the shoe. It is also the object of this invention to improve the construction or shape of the holding pins and sockets in the attachable member, whereby they may not only be easily engaged with each other but when so engaged will be effectively retained against accidental displacement. Another object is to provide fora certain amount of compression or yielding of said attachable member or top lifts without interference from the holding pins. Other objects will appear as the description proceeds.

The invention will be first hereinafter desimilar reference characters are used to des-' ignate corresponding parts throughout the several views Figure 1 is a side elevation of a portion of a shoe showing part of the heel .in section to disclose the holding means for the attachable member.

Fig. 2 is a section taken vertically through the attachable member, showing the shape of the sockets therein before the holding pins are inserted therein. i

Fig. 3 is a bottom plan view of the attaching plate which carries the holding pins.

Fig. 4 is a plan view of the attachable heel member. I

Fig. 5 is a detailed view in side elevation of one of the holding pins as it appears before being riveted to the attaching late. 1 p Fig. 6 is a plan view of said pin.

Fig. 7 is an elevation of a punch such as may be used for forming the sockets in the attachable member, and

Fig. 8 is a plan view of said punch.

In the drawings the size of the holding pins with respect to the heel is exaggerated other material and have holes 16 for the passage of said nails.

Depending from the plate 3 are one or more holding pins 4, each of which has a straight shank, a tapered flange 5 near its upper end, an enlarged head 6 at its lower end, and a stud 8 at its extreme upper end which is riveted to the plate 3, as at 9, Fig. 1. The lower end or bottom surface of the head 6 of each pin is conical for guiding it into the socket which is provided to receive it in the attachable member.

Said attachable member is preferably composed of two layers or lifts of leather which are glued or otherwise secured together, the lower layer 14 being placed below the upper layer 10 as a wear piece so .as to prevent slight wear on the bottom of the heel from reaching the sockets and pins. The layer 10 is provided with sockets 11 to correspond to the pins 4;, each of said sockets having straight walls countersunk at the top, as at 13, Fig. 2, and a conical bottom 1.2 to conform to the conical head of the pin which is inserted into said socket. The diameter of the straight walled portion ofeach socket is substantially the same as the diameter of the straight shank of its pin, while the countersunk portion 13 corresponds in size to the flange 5 on the pin. The additional resisting surfaces presented by the flanges 5 prevent an oblong slot being formed by wear in the heel piece by the shank of each pin, and the engagement of said flanges with the countersunk upper end portions 13 of the passages 11 firmly holds the heel member 10 in place because of the tendency to form a vacuum in said countersunk portions when the heel memher is drawn away from the plate 3 and said countersunk portions Wed away pin is slightly larger in diameter than the body of the socket and shank of the pin, the degree or amount of this difference being variable from'very little to a decided increase according to the texture or density of the leather of which the attachable member is made. This difference is such, however, that when the pin is driven into the socket, which may be easily accomplished by a stamp of the foot or astroke of a hammer, the head of the pin does not break or tear the fibers of the leather in passing down through the body of the socket, so that said fibers which are temporarily displaced during this operation will return to normal position when moistened and fit closely around the shank ofthe pin, While the edge of the head of the pin will bite into said body of the socket or walls thereof and effectively retain the attachable member in place on the shoe, as illustrated in Fig. 1.

The sockets are preferably made somewhat deeper than the pins so that when the member 10 is attached, as in Fig. 1, there will be a space between the conical lower end of each of the pins and the conical bottom 12 of its socket. This space is provided in order to allow for compression of the member 10 when the weight of the body is placed on the heel in walking without interference by the pins.

The countersunk upper end of each socket serves to guide the conical lower end of its pin easily into place, and the tapered flange 5 at the upper end of each pin adjacent the plate 3 p is designed to fit and fill said countersunk portion so as to prevent any play of the attachable member on the pins. The sockets may be conveniently formed in the attachable member by using a punch such as is illustrated in Figs. 7 and 8. This punch may be operated in a suitable press (not shown) and is formed at the lower end of its shank 17 with a beveled shoulder 20 to make the countersunk portion 13, a straight portion 18 to form the body 11 of the socket, and a conical tip 19 to form the conical bottom of said socket. A suitable head 21 may be provided on the upper end of the punch for retaining it in the press. Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is The combination with a shoe having depending pins secured thereto, each pin having a relatively long straight shank and an enlarged head at the end of the shank and provided with oppositely beveled annular surfaces meeting in a sharp peripheral edge around said head, of a detachable surface member having straight-walled sockets to register with said pins, said sockets being substantially the same diameter throughout as the shanks of the pins so that said peripheral edges will bite into the walls of the sockets when the surface member is at- I name to this specification.

GEORGE SGHRADE.

Images