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15,‘ 1946. A._ PERRI I 2,409,447 RE-LASTING MACHINE Filed ‘Jan. 13, 1945 . 5 Sheets-Sheet 2 Oct 15, 1946. ' A. PERRI ‘ ' RE-YLASTING MACHINE Filed Jan. 13, 19,45 _ 7 2,409,447 ‘ 5, Sheets-Sheet 3 INVENTOR. 4M 2,409,447 Patented Oct. 15, 1946 UNITEDSTATES PATENT, OFFICE , RELASTING MACHINE Angelo Perri, Groveland, Mass, assignor to Allied Shoe Machinery Corn, Haverhill, Mass, a cor poration of_ Massachusetts Application January 13, 1945, Serial No. 572,620 11 Claims. (01. 12-15) 1 ing‘ member is removably, and yieldingly carried‘ This invention relates to mechanism for insert ing lasts in shoes. More particularly it relates on the plunger for forcing the strap over the last as the plunger descends, the strap-engaging member conveniently and effectively being sup previously has been lasted and which has been removed from the last on which it was lasted. in ported between coacting springs of the plunger. Frequently it is necessary or desirable to re It is, moreover, my purpose and‘object gen to a machine for inserting a last in a shoe which erally to improve upon prior re-lasting machines move from its last a shoe in process of manu facture after its upper has been lasted andsub and mechanisms. . . ‘ sequently to re-insert a last therein preparatory In the accompanyingv drawings: Figure 1 is a top plan view of a re-lasting" to performing some later operation thereon, such 10 as applying the heel, for example. Although machine embodying features of my invention; conventional lasts have their fore and aft sec Figure 2 ‘is an elevationof the upper part of v tions hinged together ‘so that a last may be bro the machine of Figure 1, looking in the direction ken at its hinge to facilitate its insertion in and of the arrows on line 2-—2 of Figure 1; removal‘ from a shoe, it is difficult ‘to re-insert a 15 Figure 3 is a cross-sectional view of the lower last in a previously lasted shoe because the last part of the machine of Figure 1, online ‘3-3 ing operation necessarily conforms the shoe up of Figure 1; , ' ' ‘ ' per preciselyv to the last curvatures and, having Figure 4 is a fragmentary elevation illustrate removed the last, its re-insertion involves forcing . ing the plunger after it has descended into en itrinto a cavity which, due to some resiliency 20 gagement with a shoe, and showingthe last ex in the lasted ‘upper material, usually is smaller tended and the shoe re-lasted; ‘ f v ' » than the last. ‘In any event the ?t is so tight Figure 5 is a view similarto Figure 4 but with that considerable force is required; to get a last the last. elevated to reset the plunger; Figure 6 is a fragmentaryelevation showing back into a shoe subsequent to a removal of the 25 a strap type upper re-lasted with the aid of a last upon which the shoe initially was formed. depending strap-engaging member which is It is an object of my present invention to pro vide mechanism for quickly and effectively re shown in’ dotted outline in Figure 2; inserting a last in an alreadylasted shoe. I pro Figure '7 is a rear face view of the shoe horn -' vide a low cost treadle operated press in which ‘a and its supporting levers; and plunger is spring-actuated in response to depress 30 Figure 8 is a perspective of the belljcranklever _' ing of a treadle to forcibly engage the rear por tion of a lasted shoe- whose forepart has been placed on a last while the latter is broken at its hinge. ‘ The last is unyieldingly supported in the for operating the latch releasing plate. ‘ Referring to the drawings, the embodiment of my invention astherein represented,- has a base. Hi from which rises the vertical hollow standard past of the plunger, and the stroke of the plunger 35 l2. Carried at the upper end ofstandard I 2 is. forces the rear portion of the shoe over the last and simultaneously snaps the last to its extended condition. ‘ ‘ l > ' the horizontally disposed p1ate..l3' which con-v veniently may have securedthereto in any suit-. able manner the Work table sections 14.‘ > Another object is to provide means for reset ting the plunger againstthe resilience of its ac tuating springs. According to the invention, de ‘ ‘ A last supporting shaft 16 extends vertically 40 and slidably within standard 12 ‘and upward through plate l3 to a substantial height above the ' work table, its upper end being reduced as at I8 . pression of a treadle after a shoe has been re lasted elevates the last with the shoe thereon to force the plunger upward‘ until a latch‘ engages and maintains the plunger in elevated set con-t for engaging in the usual socket of a last. 20, for mounting the last on the shaft l6. .The‘ lower end of shaft-IE is connected by link 22 to‘ dition ready for another re-lasting work stroke. one end of a treadle lever 24 which is pivoted at Afurther feature resides in the‘pr‘ovision of 26 intermediate its ends on bracket 28 suitably secured on base Hi. a shoe horn facilitating movementofthe rear Standard l2 has an opening portion of'a ‘shoe onto a last in response to a 30 in its wall through which the treadle lever stroke of the plunger, and the shoe horn con 50 extends so that the forward pedal end '25 of the veniently is withdrawn from the re-lasted shoe lever is imposition ‘to be conveniently engaged during the operation ‘of re-setting the plungerw and depressed by the foot of an operator. Still another object is to provide for re-lasting Secured above and to the table I4 is the yoke shoes having only ajstrap extending around the indicated generally at 32 which has the lower rear part of the upper. A notched strap-engag 55 bearing portion‘ ‘34, through which the shaft‘ l5 , 2,409,447 a 4 slidably extends, and the vertically aligned upper bearing portion 36 wherein is slidably mounted the plunger shaft 38 having the head 40 secured actuating shaft 80 and the carried actuating arm ‘I8 will cause counter-clockwise movement of bell to its lower end. Shaft 38 has a keyway 42 therein in which set screw 44 in bearing portion 36 engages, to prevent rotation of the shaft while permitting vertical movements: thereof. Acollar plate 64 to the left in Fig. 2. Upon a predeter mined movement of plate 64 a pair of projecting tively weaker coil spring 56 on shaft 33. engages between the lower side of collar 46 and the III), “.2 pivotally mounted on its top side as at H4, H6, with a spring II8 urging the arms to plunger head 46. gether., However, aivertically projecting part I 26 crank ‘I0 with an accompanying movement of pins I08 on latch '54 are engaged and the latch swung to unlatched position, immediately upon 46 is slidably keyed on plunger shaft‘ 38 with a‘ which the springs 48, 56 snap the‘ plunger 36, 46 relatively heavy coil spring 48 on the shaft and downward into forcible engagement with a shoe engaging between the ?xed bearing portion 36 of 10, onlast 2!], as seen in Fig. 4. yoke 32 and the upper side of collar 46. A rela As herein shown, the plate 64 has a pair of arms ' . of. thev plate intervenes between the arms adja The upper end of plunger shaft 38 has adjust cent their pivots and limits their movement ably threaded thereon a ?nger nut 52 which may toward each other so that they normally extend be adjusted along the threaded- upper end of‘ in. spaced parallelism as seen in Fig. 1. When plunger shaft 38 to vary the stroke of the plunger the plate 64 moves to the left, as previously de which normally is held elevated by the latch lever 54._ As represented,.the latch lever 54 is pivotally 20 scribed, it is the ends of‘ arms H6, H2 that en gage the latch pins 566 and, after the plunger suspend'ed'from a collar 56 which is in turn sus pended'from the ?nger nut 52 by means of hook has descended, the arms, on'the return‘ stroke of plate 64, can yield to get past the part 56 on elements58 loosely engaging in~ groove 60 of' the shaft‘ 38 which will have dropped between them. ?nger nut. Collar 56 is slidably engaged around shaft 38 and is held against'rotation thereon We 25 It should be understood, however, that the plate 6'4'itself maybe so' shaped that‘ it directly may set screw 62‘ engaging in keyway‘ 42'of’the‘shaft. engage and release the latch 54. Fig. 2 shows latch 54' engaged with the bearing The tight ?t of‘ a pre-lasted' shoe which is'to portion 36 and acting as a strut‘ maintaining be'relastedl requires‘ a shoe born to get the'rear plunger 38, 46. in- elevated position against the resiliency'of'both springs*48,,56. Whenthe latch : part of the shoe" on the last. I'provide a suitable shoe horn I22 pivoted'at I24 at the upper ends is disengaged, by“ means to be described, the of a pair of links I26- whose lower ends are piv plunger‘is snapped downward into forcible en gagement' with a shoe‘ on last 26, as shown in oted at I28 on the yoke 32. The horn has a counter-weight I30‘ thereon tending to swing the The means for‘disengaging‘latch 54 comprises u bl horn clockwise aboutiits' pivot‘ I24 and, in con junction with the weight of the horn and the a forked plate 64 whose forked end rests on the links I26; tending to rotate the links clockwise top of bearing portion 36 of yoke 32, straddling about'their pivot I28. A stop I32 on the-yoke shaft 38,v and‘ whose other; end is pivotally-con Fig. 4., . 32 constitutes an abutment against'which coun nected at 66 to. the long arm’ 68' of bell crank ' ter-weight I36 engages upon gravitational clock lever ‘I0 which is pivotally‘ mounted at "I2 on yoke wise swinging thereof’ when the horn is‘ disenr 32. The shorter. arm ‘I4v of the bell crank‘ lever gaged from a shoe; The horn is adapted for has a pin 16‘ projecting'therefrom. at one" side, manual‘ engagement in a shoebetween' the’ back under which engages'the upper end of an actuat of the shoe and‘the last‘ 20 preliminarily'to op ing.arm.'IB which is carried on the actuating,r shaft 80. whose lower" end‘ is connected to a second ' eration of 'the-plunger'forforcing a shoe onto‘ the last. treadle'lever 82 pivotallymount‘ed' at a mid-loca In the operation of" my improved Ice-lasting tion alongit at‘ the pivot-26. The-forwardlypro machine, the operator stands‘ at the front of‘ the jecting-pedal part 83 of this treadle is elevated a little above the pedal‘v 25 asshown in Fig. 3', and‘ _ machine as seen in‘ plan' in‘ Fig; 1, beside the ‘I " pedals 25, 83'. He or she, with‘ the right hand,‘ overlies‘ it a little‘ shown in’ Fig; 1. places‘a last 20; broken at'it's' hinge and having Referring to‘ Fig.‘ 2; it‘ will‘ be seen that the actuating-arm 18" is indirectlysupported on actu a‘ shoe on its forepart, on thereduced' upper end ating shaft‘ 80' by being-pivotally mounted" at 84 I8‘ of'shaft I 6‘. With the left‘ hand‘, the shoe liorn- I 22'may‘be‘ insertedin place; as'indicated' on- one. of a spaced pair of‘links' 86, 88 which are pivotally‘connected at 90, >92 to the headpiece ' ’~ in'F'i'g'. 2.‘ During'this' operation of- inserting a last‘, the Plunger 38; 406‘ will be in‘ the elevated 94 on the upper end of‘ actuating: shaft’ 86. A position of ‘Fig. 2, held up by the latch 54. short link 96 ‘connects the upper ends of these The operator next depresses pedal 85 which‘ele links and has 'a lower edge‘ 98*for engaging from vates actuating shaft 8|] ‘and actuating‘ arm‘ ‘I3 above- the pin 161 which projects between the thereby rotating bell crank lever ‘I0 counter‘ spaced’ links 8638' and which‘ is engaged from clockwise and’ sliding‘plate64‘ to the left‘ in'Fig; 2 below by the upper end of actuating‘arm 18' as until “the arms H0, H2 engage the latch pins'16 previously- described. The pivoted lower end‘ of‘ thegactuating arm has a projecting foot I06 there on‘; and; head: piece~64 has the chambered‘ boss I02 for-seating one end'of'a coil'spring I64'whose otherend' bears against foot" I00 tendingto rotate and‘disengage thelatch, to cause downward snap‘ movement of plunger‘ 38; 40 by‘the-~springs“48', ' r50. The'forcible impingement of plunger head 40 against‘ the rear' part of‘ the shoe-forces it down the shoev horn I22 and‘ snaps thelast to actuating arm ‘I8, clockwise and thus‘ tending extendediposition'. A further depression of ‘pedal? to- maintain its upper‘ end, which has slightly- in 83 engages pedal 251so' that the» latter is de clined curvature‘ as'at ‘I9, pressed against pin ‘I61 A setscrewrIOG permits“ adjustment of the ten Ti pressed'to elevate the last with the shoethereon thereby to causewith'drawalbfitheshoe horn. sion of’spring I64; This link construction‘ at the upper endof‘ actuating shaft 80 provides flexibility Duringthis- elevation of-‘th‘e lasti20, the inci dental‘ further upward ‘travel’r of‘act'uating shaft in its connection with pin ‘I6. 861 causes" the end: of ’ actuating’ arm‘: ‘I8’ to ride It will be obvious-that, with the construction‘ shown and described; an upward‘ movement of I 011' the-pin ‘I6;- the’ arm swinginga‘littleicountere 2,409,447‘ 6 clockwise against the resilience of spring‘ I04. Hence, the plate?64 andltsarms ‘H0, H2 are for a last,a plunger mounted ‘for movement be tween an inactive position and a position in which freed for return to‘ the-rightlin Fig. 2. Also, as the last 2|] is elevated, the plunger 38, 40 is forced upward against the ‘resilience of springs 48, 50 and the latch 54 ultimately drops by gravity into latching engagement with upper bearing part 36 y. it engages‘a shoe partially engaged over a last on said support, means biasing the plunger to its said shoe-engaging position, releasable means for holding the plunger in its said inactive position against the said bias, treadle-actuated means‘for of the yoke 32, to re-set the device. for a similar procedure on the next shoe. " When the pedal 83 is released, the shafts “I 6 and releasing said holding means thereby to cause forcible snap movement of the plunger to its said 80, with their ‘carried parts, drop by gravity back to their positions of Fig. 2, the shoe horn I22 having meanwhile ‘dropped’by gravity to its dot gagement of the shoe over the last, and means . shoe-engaging position for completing the en; for elevating said support for a last against the said bias of the plunger to restore the plunger to ted position of Fig. 2. The last with a shoe thereon may then be removed and another in serted to receive similar treatment. ‘ its said inactive position. , “ 4. A re-lasting machine comprising a support for a last, a plunger mounted for‘ movement be ‘ It is a feature of the invention that provision tween an inactive position and a position in which it engages a shoe partially engaged over a is made for re-lasting shoes‘ of the open back type which have only a strap part for engaging last on said support, means biasing the plunger to its said shoe-engaging position‘, releasable means for holding the plunger in its‘said inactive position against the saidbias, treadle-actuated means for releasing said holding means thereby around» the back of a foot. Such a shoe is repre- - sent-ed on a last in Fig. 6, with its rear strap part I34 engaged‘ over the shoe horn‘ I22. The get ting of this‘strap part I34 to proper position on a last in the re-lasting of a shoe presents a con to cause forcible snap movement of the plunger siderable problem. ‘According to my invention, to its said shoe-engaging position for completing the ‘engagement of the shoe over the last, and a finger I36 may be removably'pivoted at I38 on the collar 46 which is between the two plunger treadle-actuated means for elevating said sup port for a last and the plunger engaging the shoe, to restore the plunger to its said inactive position. 5. A re-lasting machine comprising a support springs 48, 5D. ‘ When so mounted, it depends by gravity and has a shoulder adapted to engage the strap part'I34 to force the' strap over the shoe _ horn and the last ‘as the plunger 38, 40 snaps for a last, a plunger mounted for movement be downward on its working stroke. As the last is tween an inactive position and a position in which elevated for resetting the plunger, as previously it engages a shoe partially engaged over a last on described, the shoe horn iswithdrawn as in the previously described case,‘ the ?nger I36 yield- '1 ing as may be necessary so as not to interfere with movements of the parts. It will be obvious from the foregoing descrip tion that I have provided a relatively low cost said support, means biasing the‘ plunger’to its said shoe-engaging‘position, a latch movable by tween an inactive position and a position in which it engages a shoe partially engaged over a last on said support, spring means biasing the which it engages a shoe partially engaged over a last on said support, means biasing the plunger gravity into position to latch the plunger in its said inactive position, a latch-actuating plate, and means for moving said plate into releasing engagement with said latch, thereby to cause re-lasting machine which is extremely e?lcient 40 forcible snap movement of the plunger from its and effective and which requires a minimum of inactive to its shoe-engaging positionK for com skill to operate. pleting the engagement of the shoe over the last. I claim as my invention: 6. A re-lasting machine comprising a support 1. A re-lasting machine comprising a support for a last, a plunger mounted for movement be for a last, a plunger mounted for movement be tween an inactive position and a position in to its said shoe-engaging position, releasable plunger to its said shoe-engaging position, latch means for holding the plunger in its said inactive means for releasably holding the plunger in its 50 position against the said bias, a plate slidably said inactive position, meansv for releasing said mounted adjacent said holding means and mov latch means thereby to cause a single forcible able into releasing engagement with said hold snap movement of the plunger to its said shoe ing means, a pivoted lever operatively connected engaging position for completing the engagement to said plate, a treadle, and connections between of the shoe over the last, and means for moving said lever and said treadle whereby said hold the last support in opposition to the said spring ing means is releasable by depression of the means biasing the plunger thereby to restore the treadle for driving the shoe into completely en plunger to its said inactive position. gaged condition over the last. 7. In a re-lasting machine having a support for 2. A re-lasting machine comprising a support a last and a plunger operable to and from a posi tion where it engages a shoe partially engaged over a last on said support for completing the engagement of the shoe over the last, the com bination therewith of a shoe horn insertible be holding the plunger in its said inactive position 65 tween the rear part of a shoe and the last on which the shoe is to be re-lasted for facilitat against the said bias, treadle-actuated means for releasing said holding means thereby to cause a ing movement of the shoe onto the last in re sponse to an operation of said plunger, means for single forcible snap movement of the plunger to for a last, a plunger mounted for movement be tween an inactive position and a position in which it engages a shoe partially engaged over a last on said support, means biasing the plunger to its said shoe-engaging position, releasable means for its said shoe-engaging position for completing the engagement of the shoe over the last, and trea dle-actuated means for moving the last support in opposition to the said plunger biasing means for restoring the plunger to its said inactive po sition. _ 3. A re-lasting machine comprising a support ".1 holding said shoe horn stationary in said in serted position, and means for elevating the sup port for a last following a re-lasting operation of the plunger, thereby to effect withdrawal of the shoe horn from the re-lasted shoe and to re store the plunger for a subsequent re-lastin operation thereof. ‘ 2,409,441 8'. In a-~,re-lasting= machine having; a: support for‘ a‘ last, and. a-plunger. biased toward: a: last. on said support’ and; releasab‘ly" held ' in an inactive position against said bias; the combinationthere with of means. for releasing said. plungencom prising a pin-carrying- lever pivoted on a: ?xed support, a swingable arm having its free end en ing; from‘ said, collarr'andswingable . by gravity, into engagement with theback‘of; a‘ last‘ onsaid support for a last, said-?nger. having a vshoulder thereon for engaging; behind a- strap of a-shoe upper, meansfor releasably holding the plunger inv an inactive: position against the resilience. of said springs, means forreleasing said holding means thereby to cause a re-lasting- actuation of gaged against the'pin of saidleVerLmeans‘. for moving said swingable arm bodily thereby to the plunger and a simultaneous yielding move. rock said lever; means connected with said. lever 10 mentof. said ?nger to force said:strap of upper whereby a said rocking, thereof releases said over: the.- rear part of the last,- and means. for plunger; , and-means whereby saidswingable arm elevating the: support for. a. last initially com, pressingthelighter spring- to release the ?nger from strap-engagement and ult-imately'compress arm.~ 15 ing- thesstronger spring for restoringthe plunger 9. A re-lasting; machine comprising a-support to its inactive; position. 11. A re-lasting-machine comprising-asupport for a last, a plunger spring-biased in direction for, a last,».a plungermovablebetween. an inactive toward said support; meansfor. releasablyl main position and-.av re-lasting position andbiased to taining. said plunger in an. inactive position against'the said spring bias, ashoe horn swing 20 ward the. latter position, a latch’ for maintain ing the plunger inits- inactive position against ably mounted on- a‘ ?xed- pivot and insertible in the said-bias; a latch-releasing member, a treadle, a shoewhich is to be rel-lasted, means forz-re moves: out of: engagement with said: pin follow ing a predetermined movement of, said swingable and‘ connections between the treadle and. said leasing said plunger for. a- springr'actuated- re member whereby an initial. depression of . said lasting.engagement-thereof with a shoe on arlast mounted. on-said-support, and means for elevat 25 treadle releases. said latch thereby to causev are ing,~said:support for restoring- the plunger to its lasting actuation of the plunger, a second treadle inactive» position and for simultaneously with drawing the 'shoe- horn fromthe re-lasted shoe. 10'. A- re-lasting machine comprising. av support in. the path, of movement‘ of the- ?rst. treadle whereby’ thelsecondi treadle is: depressed by thev ?rst, treadle following a predetermined initial for a last, a support for ‘a. plunger,‘ a- plunger 30 movement of the latter, and connections be mounted for movement in the plunger support indirections toward and from said'support for 'a last; a' relatively‘ strong- coil. spring and a rela tween the second treadleand the support for a last whereby thesaid support isielevated by’ de pression'of the second'treadle, thereby to restore the plunger to its inactive position following a tively weak coillspring: both urging said plunger in‘ direction toward the: support for a, last, a 35 re-lasting: actuation thereof. collar slidably mounted‘ on the ‘plunger between the two said:springs; a ?nger ‘pivotally depend ANGELO PERRI.