US1468644A

US1468644A - Shoe last

Info

Publication number: US1468644A
Application number: US581587A
Authority: US
Inventors: Macdonald Clifford Kirby
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-08-14
Filing date: 1922-08-14
Publication date: 1923-09-25
Anticipated expiration: 1940-09-25

Description

Sept. 25,1923. v 11%8344 C. K. M DONALD SHOE LAST Filed Aug. 14, 1922 Fatented Sept. 25, 1923. r i i EJNIH EYEE fiTfiiTES Rh. 5 hid? fir I CLIFFORD KIRIBY IYIAcIDdNALD, OF BR-GCKTON, IEELSSACI-IUSETTS.

SHOE LAST. Application filed August '14, 1922. Serial lIoJESLESV. T all whom z't mag concern. i crate with a toesection 7, which is cut away Be it known that LCLirrono KinnY B120 at its rear end to provide a groove or seat 8, DONALD a c tizen of the United States and into which the lu 6 is adapted to fit and resident of Brockton, Plymouth County, operate. 55

State of Massachusetts, haveinvented cer- As a means for hingedly connecting the tain new and useful Improvements in Shoe heel portion to the toe section 7 I employ Lasts, of which theiollowing is a specificaan improved form of hinge 9, which comtion. 7 ,7 prises hinge

members

10 and 11. The hinge This invention relates to lasts adapted to member 10 includes a shank 12, which is be used in the manufacture or" shoes and has fitted within an opening 13, formed in; the particular reference to that class of last in heel portion '5, and. an angularly disposed which the toe part is hingedly connected 14:, adapted to operate within an opento the heel aortion so that the two sections ing 15 formed in the toe section 7. In order may be moved with respect to each other in to retain the hinge member 10 correctly posiorder that the last as a whole maybe easily tioned \Vlbll respect to the heel portion 5, I inserted into or withdrawnirom a shoe. employ a transversely disposed pin 16, which thereof.

ing my invention.

An important object-oi. tie invention is is passed through the heel portion 5 and an to generally improve the various elements opening 1'? formed in the end of the shank enteringiinto the last embodyingmy inven- 12. The hinge member 11 is adapted to 00- tion, the improvements being directed par operate with the arm l i, as will hereinafter tioularly to'the hinge mechanism by which more particularly appear, and comprises a the, toe and heel sections are connected to pair of plates 18 constructed from suitable gether, with a view of reducing the cost of resilient metal. These plates include extenproduction of the last and facilitating the sions 19, which are formed integral with 7 assembly of the several componeht parts resili nt wing members 20, the extensions 19 V being fitted within an opening 21, formed in Other objects and certain advantages of the toe section 7, whereas the wing members the invention will become apparent from the 20 are accommodated within the opening 15. following description when taken in connec- In order to maintain the hinge member 11 tion with the" accompanying drawings, in in a correct position with respect to the toe which- V section 7, I employ a transversely disposed Figure 1 is a plan view of a last embod pin 22, which is passed through the toe sec- 7 V 1 tion 7 and aligned openings 23 formed in Figure. 2 is a side elevation of the last the ends of the extensions 19. shown in Figure 1, a portion. of the same For the purpose of pivotally connecting being broken away to show the positions of the

hinge members

10 and 11 together, I enithe several hinge elements when the last is ploy a tubular rivet 24, which is passed extended. p through 'the plates 18 adjacent the wing Figure 8 is a view similar to that of Figmembers 20, and the shank 12 adjacent the so ure 2, a portionfof the last being broken angularly disposed arm 14:. By employing away to show the positions of the several the tubular rivet 24, I am enabled to readily hinge elements when. the last is broken or acconnnodate a transversely disposed center- (ollapsed. ing andreinforcing pin 25, which is passed In the drawings, wherein is shown what I through the transversely disposed lug 6 and at present consider thepreterred. form of the

hinge members

10 and 11, at their point my invention, the numeral 5 indicates 'a of pivotal connection. Not only does this pin heel portion, which is, at its forward end,- lad rigidity to thehinge as a unit and tend tapered rearwardlyand provided witha to retain the

hinge members

10 and 11 in transversely disposedlug or orl'set portionfi; their-proper positions with respect to the on This lug is preferablyformed integral with heel portion 5 and toe section 7, respectively, the heel portion 5,, and is adapted to coopbut italso enables me to definitely and prop erly position the center of the hinge with respect to the heel portion and toe section 7 in assembling the last, and thereafter retain' the pivotal point of the hinge members 10 andll in proper positions with respect to: the heel portion 5 and toe section 7 to insure an accurate operation of these inembers without danger of binding therebetween. 7

With lasts of the type to which my invention is directed, it is customary to pro vide a ineans i'for locking the h el: andytoe sections intheir extended-positions, and to accomplish this locking efiect I provide the.

angularly disposed arm lfwith a transverse opening26, into which s fitted a steel ball 27, adapted to enter a somewhat similar opening or pocket 28, formed in one. ofthe" wing members'QO, when the toe section 7 is gated slot 29 may beboth formed in the.

extended with respect tothe heelportion aslshown in Figure 2. 'Fhenthe toe section 7 isimoved from its position shown in Figure 2 to the position shown in Figure 3, the ball 27,'upon. being' dislodged from the opening 1- 2-8, exerts opposin thrustsnpon the wing members 20, which .yield slightly, due to their, inherent resiliency. After the toe section 7 has moved a predetermined distance,

the ball 27 is permitted toenter an elongated slot-or pocket29 formed in one. of the wing members after which further movement ofthe toe section isreadily permitted.

members-20, and since the ball 27 is of such a size asi to cause. a slight lateral separation of the wing members 20 whenthesame is dislodged from th'e elongated slot 29, duetothemov'ement of the toesection 7, from its collapsedposition to its extended position,

it follows that the ball 27 functions with the wing members 20 as an eifective means-for retaining the last. members 5 and 7 in theirrespective extended positions. 7

q 1 V V 4 V I om a study of the foregoing desci 1ption, taken in connection with the accompanying drawings, 11; is apparent that a last constructed in accordance with iny invention embodies certain desirable features;

' whichtend to lend rigidity to tlie 'structure as a whole, and enable the last sections to be positively held in. extended positions. It

will be further observed that'the construction of the peculiar form of hinge which I employ permits the device, as a whole, to be easily assembled and eliminates, to a degree, a certa n amount'of accuracy and precis on which has heretofore been necessary in the they are subjected. 1

manufacture of similai lasts, in order that the finished articles might properly function under the variousicond tions ofuse to which hat I claim is: I

1. Ina shoe last, a heel section, a toe section, hinge members piVotally-:connecting said sections together, oiieiof said members comprising a resilient plate, the other of said membersjcomprising a locking element adapted to assume a locking posit onupon relative movement-of said sections and 00- operate with said plate to retain said sections,

in extended position with respect to. each.

other, the resiliency of said'platefbeing depended upon to retain saidlocking element in locking position.

2. In a sh'oe last, a heel section, a toe secs,

tion, hinge members' pivotally connecting said sections together, one of saicl' members comprising a pair of resilient platesythe other of said'memberscomprising a locking element :adaptedto assumea lock ng pos tion uponrelative movement of said sections and cooperate with said plates ito retainjsaid sections inextended positionwvith respect toveach other, the resiliency of said plates being depended up'onto retain said locking 7 element in locking position. 7

3. In a shoe last, a'heel section,'a toe sec tion, hinge members pivotally connecting said sections together, one .of said me'mb'er's com-, prising a resilient plate having a pocket formed therein, the other-of said hingeme-mbers comprising a lockingelement adapted to enter said pocket upon relative movement of said sections to lock saidsectionsin'extended position, the resiliencyof saidplate- 1 being depended 'uporr'to retain said-locking] element within said pocket.

4." In a shoe last, a heelsection, atoe sec:

tion, hinge me nbers associated with said sections, one of said members comprising a pair of resilient-plates havinglocking element receiving pockets, the otherof said members 'coii'iprising an'arin, a-lo'cking ele ment carried by said arm, said lockingele ment being adaptedtoi enter one of. said pockets to retain said sectionsin extended positions Mandi to enter the other ofsaid pockets when said sections aremoved tocollapsed positionjwith respect to each other.

.5. In a shoe last, a heelsectiomatoe sect on, liingemembers associated with'said sec tions, one of. said members .comprisingapair,

of resilient plates one cfwhichds provided with a locking element receiving'pockehthe 7 other of said members comprisingan arm adapted .to operate between, saidjplates, and a locking element carried by said armfsaid' locking element "being adap'ted to enter, said, pocket'to retain said sections'inv extended po sition with respect to each othery V 1 6. Ina shoe last, a heel section, atoeseo tion,' means for hingedly connecting-said sections together, said means comprisingpivotally connected hinge members, one or said hinge members being resilient and provided with a pocket and a locking element carried by the other member, said locking element being adapted to enter'said pocket to lock the heel and toe sections in extended position with respect to each other, the resiliency of said resilient hinge member-being depended upon to retain said locking element in said pocket.

7. In a shoe last, a heel section, a to section, means for hingedly connecting .said sections together, said means comprising hinge members pivotally connected to each other, one of said hinge members being provided With resilient plates having pockets formed therein, a locking element cairied by the other of said members, said locking element being adapted to enter one of said pockets to retain said sections in extended position, and to enter the other pocket when said sections are collapsed.

8. In a shoe last, a heel section, a toe section, means for hingedly connecting said sections together, said means comprising a hinge member connected to said heel section, a second hinge member connected to said toe section, the latter'named' hinge member comprising a resilient plate having a locking element-receiving pocket formed therein, a locking element carried by the first named hinge member, said locking element being adapted to enter said pocket to retain said heel and toe sections in extended position, the resiliency of said plate being depended upon to retain said locking element within said pocket.

9. In a shoe last, a heel section, a too section, means hingedly connecting said sections together, said means comprising a hinge member carried by said heel section, said hinge member being provided with an arm, a second hinge member carried by said toe section, the latter named hinge member comprising a pair of resilient plates between which said arm is adapted to operate, one oi said plates being provided with a locking element receiving pocket, and alocking element carried by said arm, said locking element being adapted to enter said pocket to retain the heel and toe sections in extended positions.

10. In a shoe last, a heel section, a toe section, means for hingedly connecting said sections together, said means comprising a resilient hinge 7 member having pockets formed therein, a second hinge member comprising an arm and a locking ball car ried by said arm, said locking ball being adapted to enter one of said pockets to retain said toe and heel sections in extended position and to enter the other of said pockets when said sections are collapsed, the resiliency oi said hinge member being depended upon to retain said locking ball within one of said pocket-s when said toe and heel sections are maintained in extended position.

11. In a shoe last, heel and toe sections, one of said sections being provided with a lug, the other of said sections being provided with a groove adapted to receive said lug, hinge members associated with said sections, one of said. members comprising a resilient plate having a pocket formed therein, the other of said hinge members comprising a locking element adapted to enter said pocket to retain said sections in extended position with respect to each oth r, and a centering pin passed through said lug and said hinge members at their point of pivotal connection. 7

12. In a shoe last, heel and toe sections, one of said sections being provided with a lug, the other or" said sections being provided with a groove adapted to receive said lug, hinge members associated with said sections and pivotally connected together, one of said members comprising a pair of resilient plates one of which is provided with a locking element receiving pocket, the other of said members comprising a locking element adapted to enter said pocket to retain said sections in extended position with respect to each other, and a centering pin passed through said lug and said hinge members at thei' point of pivotal connection with each other.

13. In a shoe last, heel and toe sections, one of said sections being provided with a lug, the other of said sections being provided with a groove adapted to receive said leg hinge members connecting said sections together, one of which is resilient and provided with looking element-receiving pock- .ets, the other or. said members comprising a locking element adapted to enter one of said pockets when said sections are extended, and further adapted to enter the other of said pockets when said sections are collapsed, the resiliency of said resilient hinge member being depended upon to retain said locking element within one of sad pockets when said sections are extended, and a centering and reinforcing pin passed through said lug and hinge members at their point of pivotal connection with each other.

14. In a shoe last, heel and toe sections, one of said sect-ions being provided with a lug, the other of said sections being provided with a groove adapted to receive said lug, hinge members associated with said sections, a tubular element pivotally connecting said hinge members to each other, and a pin passed through said lug and tubular element.

15. In a shoe last, heel and toe sections, one or" said sections being provided with an fi'set portion, the other of said sections being provided with a. groove adapted to receive said offset portion, hinge members associatof said hinge members con'ipi'isingian arm, it locking element carried by SRld arm, said ed with said sections, one of said hinge members comprising 21 resilient plate having itlOClilIlg element receiving pocket, the other locking element being adapted to enter said pocket toietain seld sections 111 extended pos tion, a tubular element pivot-ally connecting said hinge inenibers together, and 21 pin passed through said oii'set portion and said tubulan element. 7 1

16. Inn shoe last, a heel section, s toe section, nieens for hingedly connecting said sections together, set-id means coinprising pivotally connected hinge members, one of ,1? 'llepsed, the resiliency of said resilient. f hinge lTiB'i'libGP beingdepended upon to re- 'Wain-said'iOQliiDgBlQIDQRt within one of said.

pockets when said heel and toe sections are;

'niaintained in extended position.

5 position,- and toenter the said hinge members being resilient end'pi'oe videdwith lOCKlIlg element-receiving pools ets, a locking element earned by the other hinge member, said locking eleinentbeing zidepted toenter one oiisi id pockets to look the heel endptoe sections in extended other of said openings when seid heel and toe sections are 7 1?; In a, shoe last, t heel section, a toe sec- 1011 a hinge member in the form of it resilient plate associated with one of said sections, a second hinge member in-the form of i an .arm co-o'pei'etiz-igv with the first mentioned hinge iTIiGIIlbQIQ ODQ of said hinge members being provided with a locking-elenient-receiving pocket, and sloshing element carried. by thev other of said hinge members sdaptedito enter said-pocket and co operatethei'ewlth to reteln said sections in extended positions Withrespect to each" other.

18. In eashoe last, a heel section, e'toesection, at hinge member lnthe ioi'in of "aresiiient plate assooiated withone of said sectioned hinge .rnemb'eij'one of said hinge another withi'e'spect to each Orbs-.

tions, a second hinge member in thelforin of? an arm; co -operating with the first HIGH-V 19. In a shoe last, heelia'nd toe'seotions,

one of said sections beingprovided with an offset portion, the otheroi"seid'seetions being provided With e grooveadepted to re-' ceive said ofis'et portion, means forflhingedly connecting said seetions'togethei", said means comprising pivotelly connected hinge nein:

hers one of seid'hinpe members com, IISHIO 7 0 ti at resilient "plate, the othei uof siid hinge i finein-bers coinp ising looking element adapted: to assume a locking position upon relative n'i'ovement oi said f'seet o'ns fend fcoi operate with-said, piste; to retain-said see- 2 tions in extended position with respect to each other, the i'es'ili'eney oi; Said plate beings depended upon to retain said locking ele- 7' ment in locking position and eicentei ing and i'einforeing pin passed through said ofis'et portion and hinge members at their point i of pivotal'connection with eeehother,

In testimonyljwhereof, l-have afiixed -my signature to this specifieation. j

oneness iaisssiincnoin noi'