US1660426A - Shoe form - Google Patents

Description

ordinary non-mechanically Patented Feb. 28, 1928.

ouirsn STATES ATI N OFFICE.

JOHN J. ooonnon, or isnins-nronr, CONNECTICUT, ASSIGNOR TO Elma-EMPIRE DOUBLE rrvor LAST COMPANY, OF AUBURN," MAINE, A CORPORATION on MAINE.

1 SHOE roam.

Application filed August 1, 1923. Serial No. 655,093.

This invention relates to shoe forms or stretchers, and is illustrated as embodied in a form of the light adjustable type intended to be placed in a shoe to preserve its shape during the periods when it is not being worn. 1 I

It is commercially important that such forms be inexpensive and, in rder to. secure the requisite quantity production of each size of form, the number of different sized articles corresponding to a line of sizes and widths of shoes must be very small. Accordingly, and in order that the use of such form may be economical for the purchasers, the same form' should serve for numerous different sizes and styles of shoes. In view of these considerations, such a form should be adjustable for length and is therefore usually provided with an expansible forepart which is operated by throwing down a longitudinally expanding toggle which unitesthe forepart and the heel part. The length adjustment isadvantageously secured by making this toggle adjustable in length and many such constructions have been suggested, all of which have given trouble in that the adjusting devices have been too complicated to be easily managed by the inclined individual.

It is accordingly an object of the present invention to meet this difficulty by providing an adjustable toggle mechanism which is simple, cheap andeasily operated without possibility of accidents, and to this end an important feature of the invention'comprises two toggle links with an adjustable )ivot arran ed to break the ivotal connection and permit its readjustment by. a mere relative twisting of the links.

Another feature of the invention consists in the provision of a clamping spring preferably encircling the toggle links and holding them together. This readily permits separation of the links to alter the pivotal adjustment by mere manipulation of the links themselves.

These and other features of the invention,

including certain combinations and arrangements of parts, will be understood from the following description of a preferred embodiment thereof selected for purposes of illusin which accompanying in each toe piece, and which are pivoted at their rear ends at 16 to the member 17, which slides in a slot in the toe pieces.

To this member 16 is pivoted the forward toggle link 18. The rear toggle 'link20 is mounted in the heel member 22. :One of these preferably-fiat toggle links, as 20, is provided with a series, of seats, shown as holes 2 1, and the other link carries a pivot pin26. This pin,.in the embodiment shown, is not integral with the link: 18 but is mounted in a spring clip 28, of generally U- shaped form, arranged to and hold them resiliently side by side, with the pivot pin 26 extending through each link. The leg of' the clip 28 which does not carry the pin has a hole 30 opposite the pin the end of the pin may seat. It is obvious that the pin-26 can be disengaged from the hole 24 by relatively twisting the toggle linksas shown in Fig. 2, and the link 20 can he slipped back and forth to bring tion with the pin. In order to guide the sliding link and to prevent its snappingout embrace the links of engagement with the other'link and the clip, th eclip may have lugs 32 struck .up on it and its lower edge 34 may bebent over to form a channel or guide for the sliding link '20, A lug 36011 the link 20 keeps it from being pulled out lengthwise.

The pivot at 16 is sufiiciently high so that the pin 26 will pass its dead center as the links, are pressed'down into a shoe, as is well understood by thistypevof devices; I

Thus I have provided a toggle mechanism that has only three parts and which can be adjusted by merely twisting the two links upon each other.

those acquainted with what I claim as new and desire to secure by Letters Patent of the United States is Having thus described my invention,

1. A shoe form having forepart and heel v members and an adjustable toggle joining the said members comprising two pivoted links lying side by side and arranged to break their pivotal connection when relatively twisted about the longitudinal axis of ment of the pivotal connection while held in such relatively twisted position. 7

A shoe form havingtorepart and heel members and an adjustable toggle joining the said.members comprising two flat pivoted links, a pivot pin carried by one link and extending into the other, but separable therefrom when the links are relatively rotated on their longitudinal axes, and resiliegtmeans for holding the links side by s1 e.

4:. A shoe form having torepart and heel members and an adjustable toggle joining the said members comprising two links, a

pivot adjustably connected with one of the links and joining them, anda U-shaped compression spring arranged to press against the fiat sides of thelinksttor holding the links and pivot in operative position. v

5. A shoe form having torepart and heel members and an adjustable toggle joining the said members comprising two flat links each connected to one of said members and lying loosely side byside, one of the links having a series of seats, a pivot pinextending throughthe other link and arranged to engage in a selected one of the seats and a resilientmember extending around both links and clamping them iii-the vicinity of the pivot. I a i e 6. A shoe form having forepart and heel members and an adjustable toggle joining the said'me'mbers comprising two flat links each connected to one of said members and lying loosely side by side, one of the links havin a series of holes a ivot )in extend ing through the other link and arranged to engage in a selected one of the holes and a resilient member normally contacting with the outside faces of the links in the vicinity of the pivot and arranged to be spread by twisting one of the links to permit adjustment of the pivot.

7. A shoe form having torepart and heel members and an adjustable'toggle joining the said members comprisingtwo flat links, one connected to each of said members, a pivot pin in one of the links, the other link having a plurality of possible engagemental relations with said pivot pin, and a U-shaped'spring clip grasping the two links bet-weenv its ends and connected with the pivot-carrying link near the pivot.

8. A shoeform having torepart and heel members and an adjustable toggle joining the said members comprising two flat links lying loosely sideby side, a pivot pin carried by one link and extending into one of a plurality of pockets in the other link, and a. resilient member holding the links together and arranged to yield as the links are relatively twisted to free the pivot pin from its pocket and permit its adjustment to another pocket.

10. A shoe form having torepart and heel members and an adjustable toggle joining the said members comprising two flattened links lying side by side, a resilient clip e1nbracing them and having a guiding channel formed between its ends in which one of the links may slip and arranged so that its ends may be sprung apart by relativelytwisting the links, and a pivot pin extending through the linksin their normal operative position, and carried out of engagement with one of the links when they are so relatively twisted.

11. A shoe form having torepart and heel members and an adjustable toggle joining the said members comprising apair of flattened toggle links, a resilient clip having flatten-edends claspingthem together, one end ofthe clip having projecting portions forming a channel through which the associated link may slide, the other end of the clip carrying a pivot pin extending through the1 other link and into the former named lin r.

In testimony whereof I have signed my name to this specification.

JOHN J. ooonnon.

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