US2406359A - Vacuum last and sole forming machine - Google Patents

Description

Aug; 27, 1946.

w. H. DOHERTY VACUUM LAST AND SOLE FORMNG MACHINE Filed Feb. 2, 1944 r INVENT'OR. Ziam JI. 17o?? ery Witnesses '/f BY Auge 27, 1946. w.-A H. DOHERTY VACUUM LAST ND SOLE' FORMING MACHINE 4 Sheets-Sheet 2 Filed Feb. 2, 1944 QW LALW .m mh fm VO; @i M H W @m www www,

Aug. 27, 1946. w. H. DO'HERTY 2,406,359

VACUUM LAST SOLE FORMIG' MACHINE Y Filed Fe'b. 2, 1944 4 sheets-sheet s mw# Alma .mwu

Winesses A g- 27,v 1946 w. H. DOHERTY y VACUUM LAST AND SOLE vFORIVIING MACHINE "Filed Feb. 2, 1944 4 sheets-sheet v4 dri".

.EELPI 5 .my mm D.. H .f Wm MW M e w Patented Aug. 27, 71946 1" f'znoesse f l'vl'wmiivrLAST AND "soLE FomvuNG "MACHINE aY f :William H. Doherty, Elmhurst, N. Y.

"ppucatin Febr'ay 2, 194fi .`.seria .1 N0. 520,731

Arlfhis invention relates Ato shoe machinery and more particularly to avacuum last and sole formingr machine.

A An object of this invention is to, provide a machine withl which new'or replacement soles may be applied to shoes. H

A furtherobject is izo-provide a'machine particularly adapted to applyplasti'cv soles.

Another object of my invention is to provide a machine which is provided with a vacuum last to holdvthe shoe being soled or repaired in the proper position. This is particularly important when shoes are being resoled since to secure a proper resoling the inner vsole must be flat and in position. As shoes are Worn the inner portion of the shoefbecomes depressed about the ball of the foot and it is important vthat this section `be straightened to provide a level inner sole as in a new shoe.

My machine is adapted to handle shoes of various sizes and to fit the sole to conform with the original last. In order to'accomplish this certain adjustments of size and contour are necessary. As will be seenlfrom the drawings and the ensuing description I have provided means for adjusting my molding elementv to any desired shape. It will also `be seen that I have provided means for switching the machinev so that it is adapted to mold soles foreither vthe left or the right shoe. Y l

Other objects and-advantages of my invention will' appear in the ensuing description and accom panyingdrawings, in whichl .Figure lis a side elevation in section of a machine embodying my invention;

Fig. 2 is a plan view of the bed of my machine;

Fig. 3 is a detailed view partly in section of a heel-forming plate;

Fig. 4 is a detailed view partly in section of a sole-forming member; y

Fig. 5 is a sectional View showing my machine in operating position; Y f

Fig. 6 is a detailed view in section on the line 6--6 of Fig. 5; i l

Fig. '1 is a, detailed View in cross section on the line 1-1 of Fig. 5;

Fig, 8 is a detailed View through the vacuum nozzle; Y

Fig, v9 is an end View in section of my machine;

Fig. 10 is a cross sectional view taken on the line ||||0ofFig.2;

Fig. 11 is a cross sectional view taken on the line I of Fig. 2.

Referring more particularly to the drawings I provide a table or casting I5 upon whichl is 4 claims. (c1. 181-34) mounted a rotatable-'frame having an Il.shaped member I1 for strengthening purposes andfor supporting the frame as hereinafter described. The frame I6 is rotatablewithin the opening I8 by means of the handle IS. The handle I9 is provided with a spring-pressed register pin 20 adapted to engage notches 2| in the underside of the table I5. As shown in Figure 1, by the opera-I tion of the-handle I9 the frame may be vswiveled from one position to another. l A'I'he frame I3 is formed with two members 22 and23forming a yoke asis clearly shown in Figure 9. i The yoke is joined by the rod 25 on which is mounted the lasting frame 30. The frame 30 is supported by means of the members 3| and 32 which'engage the shaft 33 mounted on the shaft 25 by thel members 34 and 35 which engage the frame 36. Mounted between the members 3| and v32 is an adjustable shaft k4|) engaging the heel last 4|. -The upper portion of the shaft 4I) is threaded and is engaged by the nuts 42 and 43 so that the position of the shaft 40 between the members 3| and 32 may be varied as to height. The members 3| and 32 are provided with s lots 45 and a bolt 46 passes through said slots and through the slot 41 in the shaft 40 so that the position of the sha'ft`40 may be adjusted laterally as well as longitudinally with respect tothe supporting members 3| and 32.

Mounted in the forward end of the supporting members 3l and 32 is an externally threaded shaft 5l) surrounded by a threaded collar 5I mounted in the slot 52. The externally threaded shaft may be moved upwardly and downwardly by .turning the wheel 5I. Shaft 50 supports at its lower end the foot part of the last 4which extends within the toe 56 of a shoe 51. The rear surface 58 of the foot last is bevelled and is adapted to engage a bifurcated lever 60 having ends 6| and 62 fulcrumed through the bolt 63 to the heel last 4|. A connecting cam v65 is adapted to engage the bevelled'face' 58 of the foot last to force the fo'ot and heel lasts `apart when pulled downwardly. The shaft 50 is hollow to provide a channel 1U to which may be con-v nected the combination vacuum and steam hose 1 I. The channel 10 communicates with the channel 12 in the foot last to apply either steam or vacuum to the last. A rubber'gasket 13 may be provided to insure the seal. As shown in Figure 6 and in Figure 2 a foot plate 15 is provided which is reversible for right and left shoes and which is adapted to be placed under the foot portion of the last 55. Pins 11 are provided to center the foot plate 15. An adjustable eccentric valve 18 having *plurality of slots 8|.

l a channel 19 is provided at the end of the channel 12 to vary the amount of suction which may be i applied to the inner sole. Itwill be appreciated that by turning the valve 18 a greater area of Mounted on the frame 3B is a table 80 having a A plurality of adjustmentf, plates 82 having slots 83 Vare connected tothe table 80 and may be fastened in plac'e by means-1-` sole forming band 86 butl extended beyond said?.`

band at 81. The ends 88 and 89 of theile'xible and'SIY which are provided with nuts, 92 and Y03 so that thetension thereonmay-be adjusted.

1. `band 88 are setin the spring controlled studs 90.

' VA somewhat similar flexible heel Vforming mem- 1 ber 95. is mountedV on theftablej 80 through the .i frame'36rand is provided with a threaded stud i 96 controlled by the nut. 01 to position it in cooperation with the sole forming portion 86. A

pair of arms 08 and B2i-are pivoted at |00 andr|0I Vto the frame Strand bear adjustable-screws |82Y The and |03V and pressure points |04 and |05.

outer edges of these arms arecontacted yby cam i the heel-*forming section 95-may be controlled by p the position'of. the screws v|02 and |03 and by. the

cam wheelsv IlIiv and |09. `Mounted in theframe l I5 onthe shaftl I0 isA a bed plate ||'I which may 1V wheels IIN)l and |09 having operating handles |01 i and |08. It will be readily seen that the shape of be provided withheatersl I2 Aof any conventional p type or with radio frequency heating apparatus.

The entire bed plate may be raised by moving the shaft IIIl upwardly in the socket II3 and locked by means.l of the lock screw I I4. It will' be.

appreciated that a conventional Vfoot vlever maybe placed below the shaft `to raise and lower it if desired; Mounted in' the bedl plate- III are a plurality of. spring controlled pressure buttons |I.5,

mounted' in theconventional manner ini casing I6 so as to resilientlyV push themselves above the surface of the bed plate II I'. Thetableniis l provided with slots' |120 adapted. to be engaged p by the wing nuts |2| to clampftheftable against the bed plate I I I.

In. operation the frame V3tlimaybepivotedon 1 the shaft 25 to the position shown' in Figure-1;

The shoe. to be. soled. is thenfplaeed upon the foot last 55.` and theheel lastY 4|. adjusted'fby meansv of thescrevv` 42. The table 80 is then. adjusted to the shoe with the-extensions 81. of: the adjustment 1 plate 82 extendingv betweenthewelt'andtheupper so that the ilexible band 86 defines the.A contour l off the sole and the' ilexible band of the soler|i5r denes thecontour Aof theV desiredfheel.` The foot plate 15 and the interchangeablee-heel?plate 1B will. of course be placed in register to accommodate either theflef-t or right shoe, whichever is' being Worked on. Thefshoe may then .be-sterilized by the entry of steam through t-hehose 'I'IV and the. vacuum may. then be applied. to cause; the

inner sole to adhere flat against the foot plate 15.

PlasticV material may then`4 be:` applied within the flexible members 86 and 95 to cover the inner sole and theinner heel portions.' An instep plate |28 is then inserted to form the edgeof the heel and the heel member |21 is formed. As it may be desirable for the operator to work from side to side the entire frame may be shifted by operation kof the handle I9. yWhen this work is completed the frame is pivoted on the axle 25 onto the bed plate IIl and clamped intofpla'ce.; Heat may then be appliedt'o sietthe plastic or composition material.

I .'Iclaim:

l.. A. machine for applying soles to shoes including a frame, a support pivotally mounted on said frame, a table on said support, a last mounted on said support having foot and heel portions, means. for adjusting. said foot and heel portions to 'accommodate shoes of different sizes, an adjustableheel plate on said heel last, a reversible foot plate on said foot last, means for applying a vacuum into the inner sole of a'shoe, a; ileXiblej member one.. said table. deiiningxtheV solelpertion,v means for adjusting said flexiblememberito con-j form it'to the desired shape', a flexible-member on said table deing.y a: heel portion,reaeh' of. said flexible members cooperating with the-other to dene the entire sole portion; and means for Vapplying heat to said heel and sole portions, f

2. A. machine for applyingv solesV and A.heels-.to

shoes including aA base,vv a ,member pivotally mountedin said base, av shaft in said member, a frame pivotally mounted on said shaft, a last' comprising foot,- and heelportionsf supported-by said frame, a reversible foot plate on- 'said last, means for moving said foot and heel portionslwith relation to each other to'engage a shoe, flexible heel and. sole forming members adjustably mounted on vsaid frame, said heel and sole* form-1 ing members having adjustable meansto conform them to the heel and welt of the shoe to beV soled, a heating plate mounted on said base;v in position to be engaged by the. heel andl sole of a shoe. andthe sole and heel.V forming members in one-position of thepivotal movementbf said frame.v l

3. Amachine fora-pplying soles'toshoes includy pivotally connected? tofsaidexibleforming meme s bersrforV adjusting. said' flexible forming: members to lconform to the's'hoe; and mea-ns'. on said frame for adjusting said foot and heell formin'gi members with relationtofsaid footfan'dfheel lasts.. i

4. A machine for applying; soles to-'sho'e'si'n-y cludinga. base;l a` member pivotally mounted on saidY base, a shaft in said nie'n'iber;'aI frame mounted onf said shaft, 'aY last.v comprising' heel and foot portions adjustably supportedby.' said frame,l a1 tablemounted' on said. frame, flexible members defining heel-and footiportions onasaidi table, means pivotally connectedy to said flexible members for adjusting said flexible memberato conformv them to, the desired shape, andiA afbed plate'for supporting'said table;l

WILLIAMH; DOHERII'Y.: l

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