US2394205A

US2394205A - Machine for use in lasting shoes

Info

Publication number: US2394205A
Application number: US510654A
Authority: US
Inventors: Charles A Robinson
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1943-11-17
Filing date: 1943-11-17
Publication date: 1946-02-05
Anticipated expiration: 1963-02-05

Description

Feb. 5, 1946. c. A. ROBINSON MACHINE FOR USE IN LASTING SHQES Filed Nov. 17, 1945 3 Sheets-Shed 1 Fig.1.

n ven tor Char/es Robinson I y 1- c. A. ROBINSON I MACHINE FOR USE IN LASTING SHOES 3 Sheets-Sheet 2 Filed NOV. 17, 1943 [n m far Char/es A Pobmson Feb. 5, 1946. c ROBINSON 2,394,205

MACHINE FOR USE IN LASTING SHOES Filed Nov. 17, 1943 5 Sheets-Sheet 3 fizz/en for Charles A. Robinson By 1'3 Afzfomgy Patented Feb. 5, 1946 Macrame-Fort USE IN Lhs This invention relates to machines for-use inlastihg shoes. A spcial'dbjet in view is to iprq ride improvements in machines for lasting the the ends of welt shoes; and the invention is. ac c'ordingly herein illustrated as applied to such a hiee ma'butit will be understood that it is 1101; thus-limited ih its apphcability.

Inlastin'g' the'toes bf welt shoes it is thecom-.- men practice to apply a binder wire'albout the. toe end (if each slide to 'hold the 'iriarg'inal portion of theuppe'r in upstanding position against the lisi'ial lip'dr shoulder on the insole and t6 fasten the wire twisting it's' endsabout tack's driven into thedppos'ite sides of the forepartof the shoe bottom. hater the wire is removed from the shoe and'discar'ded. "In a divisidnal application Serial Nd. 545,797; filed n J1 11y 20, 1944 there is'.dis'-l closed and claimed a novel upper-holding device 6r binder adapted to be quickly and conveniently applied and fastened to a shoe and 'to be used re'pehtedly in lasting' .differerit shoes, its con-. striiction being further such that when in place on asho'e it is especially effectivein holdingthe' upper securely ih lasted position. That binder, as herein shown, has a portionfor engaging and holding the -u'p'peraround the end of the shoe; and

has at opposite ends er that portion thereof coil springs arranged to be t'ehsioned lerigthwise'of the :shoe and formed for attachment to the shoe in the angle between the leather and the lip or shoulder of the insole. The tensioned springs thus a'ppl'ylfor'ces in; directions parallel to the side edges. of the shoe bottom to the portion of the binder extenqihg 'ai'puhdthe end or the 'shoe to hold it at all tim s tightly against the upper afid prop-er relation thereto. That portion of the binder and the springs may, as herein mus trat'd, he ednvefiiently made or asin'gle pie' e of wire. Associated with the'spring's in the con structidh as permanent parts of the inder; r'emem'beism use in applyihg the hifidei an in lihsidn'ih'g the springs and ease in fastening the bindr' to the shoe, these members extehaihg' through eaps formed 'oh the springs and havih g'proh'gsj arr'afigedto be forced into the hammer portion" 0 the iipp'er'ah'd the lip'of the insole w en't e insolehasf such lip. r a

'The'presehlt' int-entice"previges fie el'iaeahs iei applyingfa 'bihdr to a shoe the ooi'i'st'rutio'ri 'srmwri' being "as" is a usetoahply a. hiiideii farme as abete d''s nicmaed ih th'at enfsthietib "are a1; g te en'eag'e opposite 'eh'fd' pdr is of the bidder and movable ab'dutah agiis extending dth'wis' of the shoe to pull the hinder tight aga nsflthe upper and to tension theabove mentioned springs; the arms being alsd fnounted to swing about axes ex"- tendinglehgthwisje of the shoe to carry the-end portions of the .binder. inwardly. toward the...uppr and to force its prongs into the shoe. This binder-applying means is herein shown as manu ly operated... means. attached to a power-operated toeelasting. machine constructed as showndn United... States. Letters. .Patent. .NOA ,2,1 60,8 l,

' grantednn June 6,1939on an application of F C.

Eastmans'. and.A..F. Pyms; but it, will be under; stood. that iti's not. limited to use ina machine of. that particular. character or to manual; opera: tion, and thatinyarious aspects also bindere applying. means. embodying novel features of the invention isnot limited tdusewith binders constructed..precisely. as hereinillustrated. v The above. and. other. features.; o f the invention, including v'a'rious nov l. details QLQQIJ Q TUQ- tion' and combinations of parts;-wi,ll now hemore particularly. described ."with reference to the ac; ompanyingdra'wings and thereafter pointed out inthe'claims. v

lnitheidrawings... 1 is ayiew partly, in right-handside elevation. andipartly in; section .of a portion of the machine shown in. the. above-mentioned Letters Patent provided. withbinder-applying means coinstructed in accordance with the present invention}. H, v Fig. 2. :shows. :the binder-applying means u and parts associated therewith in front elevation; 3,,is a sectionponythe line HI -I11 of Fig. ,2

I .Fig'. .4 ,is .a perspective .view. o the. b der "As. disclosed. in. the above-mentioned Letters Patent, the .maohineto whichthe novel binderapplying-means is herein illustrated asattached is! provided. with a shoe-positioning member 2 (Fig. 2:) against which thetoeend of the shoe is clamped vertically by a toe rest-,4, the member 2 erfga'gingthetoe end of the insole and supporting the inneriace .of .the lip a of the insole (Figs. 6 and 'Z) in operating ,on-awelt shoe havin an insole provided with such. a lip; In thetoe-lastin; operation the marginaljportion of thetoe end of the .upper isgripped and pulled by a plurality of.grippers.6,.two of which are shown inFig. 2, andin time relation to. the operationoi the, grip,- pers the toe end of the upper is wipedhei htwise of..the..last.and inwardly over the feather and a ainstthelip .oftheinsoleby a pair of toeembracing wipers 8.. The wipers are mounted pespectiyely. .on wiper. holders, L0 which are sup,- pn d and guided for swinging or closing movements laterally of the shoe on a wiper carrier I2 under a cover plate I 4 on the carrier. The wiper carrier is supported for movements to advance and retract the wipers lengthwise of the shoe on a pair of links [6 pivotally connected at their upper ends to the carrier near the front end of the latter, and also on the upper end of a lever l8 fulcrumed at 20 between its upper and lower ends. At its lower end the lever i8 carries a roll 22 engaged by a cam 24 for imparting the movements lengthwise of the shoe to the wiper carrier. The links 16 are connected at theirlower ends to arms 26, only one of which is shown, these arms being fast on a rockshaft 28 on which is also secured a cam-operated arm 30 for swinging the wiper carrier 42 upwardly about its connection with the lever 18 to cause the wipers to wipe the upper he'ghtwise of the last and for swinging it downwardly to cause them to increase their pressure on the upper wiped inwardly over the feather of the insole. In time relation to their advancing movements lengthwise of the shoe the wipers are closed inward laterally of the shoe, first to engage the upper in the upwiping operation and thereafter to wipe it inwardly over the insole, by forward movement of a slide 32 on the wiper carrier l2, this slide being connected to the wiper holders I by links 34 (Fig. The slide 32 is operated yieldingly through spring means 36 and a rod 38 by a bell-crank lever 40 mounted on the wiper carrier l2, this bell-crank lever being connected by a link 42 to an arm 44 fast on a rockshaft 46 on which is also secured a cam-operated arm 48.

As disclosed in the above-mentioned Letters Patent, the machine comes automatically to a of Which extend through the springs lengthwise of the latter. Each member 58 is formed at one end to provide a loop 60 arranged to extend outward laterally of the shoe and also a prong 62 extending inwardly through the loop 56 on the end of the adjacent spring 54 to serve as a fastening for holding the binder on the shoe. By engagement with the loops 60, therefore, the binder may be applied about the toe end of the shoe, the springs may be tensioned lengthwise of the shoe and the prongs 62 may then be forced into the shoe to fasten thebinder in place'with the springs stop after the wipers have wiped the marginal portion of the upper inwardly over the feather and against the lip of the insole and have been raised slightly to decrease their pressure on the upper heightwise of the shoe. This has enabled the operator heretofore to apply a binder wire preliminarily about the toebetween the upper and the wiping faces of the wipers, having fastened one end of the wire to a tack driven at one side of the forepart of the shoe bottom. When the machine is again started the wipers are raised a short distance and are also partially retracted and opened. This has enabled the operator to pull the wire farther inwardly against the upstanding margin 'of the upper, after which the wipers are again moved downwardly and are advanced and closed to apply their full pressure to the upper and to press the binder firmly against it. The machine then comes to a stop a second time, and during this second pause in the operation of the machine the operator has been accustomed to twist the wire around a tack at-the other side of the shoe bottom and to sever the wire thus applied from the source of wire supply.

For use, in place of such binder wire, the divisional application discloses a preformed binder 50 '(Fig. 4) which may be quickly applied and fastened to a shoe and used repeatedly on a plurality of shoes, The binder 50, in the form herein shown, has a portion 52 of resilient wire for engaging and holding the upstanding margin of the upper around the toe end of the insole, the wire being coiled at its opposite ends to provide springs 54 arranged to be tensioned lengthwise of the shoe as the binder is applied to the shoe.

-' lever 84.

Formed at that end of each spring which is the 56. Associated with the springs, 'as permanent parts of the binder, are wire members 58 portions in tensioned condition. Preferably, as illustrated in Figs. 7 and 8, the ends of the binder are fastened in the angle between the feather and'the lip of the insole at the sides of the forepart of the shoe by forcing the prongs through the upstanding margin of the upper and into the lip. Itwill be understood, however, that in operating on a shoe provided with a so-called shouldered insole, the prongs would be forced into the shoulder of the insole. When the binder is in place on the shoe the springs 54 serve at all times to hold the portion of the binder which extends about the extreme end of the shoe forcibly against the margin of the upper. To limit the tensioning of the springs 54, the members 58 are provided with bent ends 64 for engaging the springs. Preferably small barbs 65 (Fig. 4) are formed on the sides of the prongs 62 which face toward the toe end of the shoe to assist in retaining the prongs in the shoe. 7

For applying and fastening the above-described binder to the shoe the machine herein shown is provided with binder-applying mechanism which is supported on the wiper carrier (2 and accordingly moves with the carrier both lengthwise and heightwise of the shoe. Secured underneath to the opposite side portions of the carrier at its front end are two downwardly and forwardly extending brackets 66 which support a horizontal rockshaft 68 arranged to extend laterally of the shoe, the brackets being provided with hearing caps 10 for holding the rockshaft in place. Sup ported on the rockshaft by pins 12 are two upwardly extending arms 14 each of which includes a member 1.6 adjustable upwardly or downwardly in a guideway in the lower portion of the arm and'held in adjusted position by a screw 18. The members 15 are curved inwardly toward-each other at their upper ends and are provided with forwardl extending ins arranged to enter the loops 60of the binder in locations in front of the wipers 8 and substantially opposite the side edges of the shoe bottom, the members being also provided at their upper ends with curved recesses 82 to receive the springs 54 of the binder. By forward swinging movements of the arms 14, therefore, the binder is applied to the margin of the upper about the end of the toe and the springs 54 are tensioned. For imparting such movements to the arms there is'fast on the left-hand end of the rockshaft 68 a forwardly extending hand The rockshaft is thus turned by the hand lever against the resistance of a spring 86 which normally maintains it in a position determined by a member 88 which is fast thereon and has a projection 90 arranged to engage a shoulder on the adjacent bearing cap 10.

When the binder is thus applied to the shoe by forward movements of the arms 14 the upper ends of the members 16 are far enough apart to'provide clearance between the shoe and the prongs 62 of the binder, as illustrated in Fig. 6. For moving the opposite end portions of the binder inhas thereon two lugs 96 extending forwardly into,

slots 98 which are formed in plates Hi6 secured respectively to the front faces of the lower end portions of the two arms M. In response to turn--v ing movement of the member 92 in one direction, therefore, the lugs 95 act on the plates [-96 to swing the arms 14 inwardly toward each other as above described. For thus operating the member 92 there is mounted to turn about the right-hand end portion of the rockshaft 68 a hand lever I02 provided with a pin H34 which extends laterally therefrom into an opening in the member 92. Also carried by the hand lever is a pin I06 extending into an opening in a rectangular head I08 formed on the lower end of a rod Hi]. This rod extends upwardly through a clamp member H2 fast on the right-hand end of the rockshaft B and has thereon a compression spring, I I4 confined between the clamp member and a nut H5 0n the rod. The spring H4, therefore, serves to maintain the arms M normally at a distance apart determined by engagement of the head 1.08;

of the rod III] with the lower face of the clamp member I 2, and it is against the resistance of this spring that the member 92 is operated by the hand lever I02 to swing the arms 14 inwardly and thus to force the prongs 62 of the binder into the shoe.

In the operation of the machine herein shown, when equipped with theabove-described binderapplying means, the operator places the binder shown in Fig. 4 about the toe end of the shoe under the wipers l2 after the machine has come to a stop as hereinbefore described with the wipers slightl raised to decrease their downward pressure on the upper over the feather of the insole; and mounts the loops 60 of the binder over the pins 89 on the members l6. By depressing the hand lever 84 he then swings the arms M for wardly to apply to the binder a pull tending to draw it inwardly between the wiping faces of the wipers and the portion of the upper over the feather of the insole. By maintaining this pull on the binder when the machine is again started he draws the binder farther inwardly against the upstanding margin of the upper as the wipers are further raised and retracted and as the are again advanced and closed and moved downwardly to apply their full pressure to the upper.- The hand lever is moved far enough downwardly at this time to tension the springs 54 at the ends of the binder as far as permitted by en agement of the bent ends 64 of the members 58 with the ends of the springs. After the machine has come to a stop the second time the operator while still maintaining the downward pressure on the hand lever 84. swing-s the lever H12 also downwardly and thereby imparts inward swinging movements tothe arms 14 to carry the end portions of the binder inwardly against the upper in the angle between the feather and the lip of the insole and to force the prongs 52 of the binder through the upstanding margin of the upper and into the" lip of the insole, as illustrated in Fig. 7. 'The'oper ator then raises the hand lever 84 to swing the arms 14- rearwardly and thus to withdraw the pins 80 from the loops 60 of the binder, and releases the lever l02 to permit the arms to be last into lasted position, oimeans for applying swung outwardly to their initial; positionsby the spring H4. The binderhaving thus beenapplied and fastened to the shoetheoperator starts the machine once more to causethewipers and other parts to be returned to their starting positions. It will be understood that the binder will remain on the shoe until the upper materials have become permanently set in lasted position, after which it will be removed from the shoe prior to the welting operation for use in lasting another shoe.

Having described the invention, what I claim as new and desire to secure by Letters Patent of the United States isi v v 1. In a lasting machine, the combination with means for working an upper about an end of a last into lasted position, of means for applying about the end of the upper a binder portable with the last and shoe to hold the upper in lasted position, said binder-applyingmeans comprising arm-s constructed and arranged to engage opposite end portions of the binder respectively in locations substantially opposite the side edges of the shoe bottom and mounted tov swing about an axis extending widthwise of the shoe to pull the binder tight against the upper.

2. In a lasting machine, the combination with means for working an upper about an end of a last into lasted position, of means for applying about the end of the upper a binder portable with the last and shoe to hold the upper in lasted position, said binder-applying means comprisin arms having projections arranged to enter loops formed at opposite ends of the binder, said arms e-ing mounted to swin each about an axis extending widthwise of the shoe to pull the binder tight against the upper.

3. In a lasting machine; the combination with means for working an upper about an end of a last into lasted position, of means for applying about the end of the upper an upper-holding binder portable with the last and shoe and pro vided at its opposite ends with loops arrangedto extend laterally of the shoe, said binder-"ap plying means comprising members having projections arranged to extend through said loops in directions lengthwise of' the shoe, said mem bers being movable lengthwise of the shoe .to apply the binder to the shoe.

4. In a lasting machine, the combination with means for working an upper about an end of a about the end of the upper a binder portable with the last and shoe to hold the upper in lasted position, said binder-applying mean's comprising members constructed and arrangedto engage opposite end portions of the binder and mounted to swing each about an axis extending widthwise of the shoe to pull the binder tight against the upper, said members being also mov-I able toward each other w'i'dthwis'e of the shoe to carry the end portions of the binder inwardly toward the upper.

5. In a lasting machine; the combination with means for working an upper about an end of last into lastedqpositiori', or means for applying about the endofthe upper a binder portable with the last and shoe to hold the upper in lasted po 'on', said binder-applying means" comprising arm constructed and arranged to enga e oppo= site end portions of the binder and mounted to swing each about an axis extending WidthWls of the shoe to 'pull the binder tight against the upper, said arms being mounted to swing also about axes extending lengthwise of the shoe tocarry the oppositeend portionsof the binder inwardly toward the upper. I

6. In a lasting machine, the combination with means for working an upper about an end of a last into lasted position, of means for applying about the end of the upper a binder portable with the last and shoe to hold the upper in lasted position, said binder-applying means comprising arms constructed and arranged to engage opposite end portions of the binder, a rockshaft supporting said arms and movable about an axis extending widthwise of the shoe to cause the arms to pull the binder tight against the upper, said arms being mounted to swing also relatively to said rockshaft in directions widthwise of the shoe to carry the opposite end portions of the binder inwardly toward the upper, and means for thus swinging said arms.

'7. In a lasting machine, the combination with means for working an upper about an end of a last into lasted position, of means for applying about the end of the upper a binder portable with the last and shoe to hold the upper in lasted position, said binder-applying means comprising arms constructed and arranged to engage opposite end portions of the binder, a rockshaft supporting said arms andmovable about an axis extending widthwise of the shoe to cause the arms to pull the binder tight against the upper, said arms being mounted to swing also relatively to said rockshaft in directions widthwise of the shoe to carry the opposite end portions of the binder inwardly toward the upper, and mechanism movable about said rockshaft for thus swinging said arms.

8. In a lasting machine, the combination with means for working an upper about an end of a last into lasted position, of means for applying about the end of the upper a binder portable with the last and shoe to hold the upper in lasted position, said binder-applying means comprising arms constructed and arranged to engage opposite end portions of the binder, a rockshaft supporting said arms and movable about an axis extending widthwise of the shoe to cause the arms to pull the binder tight against the upper, a hand lever fast on said rockshaft for thus operating it, said arms being mounted to swin also relatively to said rockshaft in directions widthwise of the shoe to carry the opposite end portions of the binder inwardly toward the upper, and means including another hand lever movable about said rockshaft for thus swinging said arms.

9. In a lasting machine, the combination with means for working an upper about an end of a last into lasted position, of means for applying about the end of the upper a binder portable with the last and shoe to hold the upper in lasted position, said binder-applying means comprising arms constructed and arranged to engage opposite end portions of the binder, a rockshaft supporting said arms and movable about an axis extending widthwise of the shoe to cause the arms to pull the binder tight against the upper, said arms being mounted to swing also relatively to said rockshaft in directions widthwise of the shoe to carry the opposite end portions of the binder inwardly toward the upper, mechanism movable about said rockshaft for thus swinging said arms, and spring means arranged to position said mechanism normally in predetermined relation to the rockshaft and against the resistance of which the mechanism is thus movable about the rockshaft.

10. In a lasting machine, the combination with means for working an upper about an end of a last into lasted position, of means for applying about the end of the upper an upper-holding binder having at its opposite ends prongs arra ged to be forced into the shoe to fasten it to the shoe, said binder-applying means comprising mechanism constructed and arranged to pull the binder tight against the upper lengthwise of the shoe by engagement with its opposite end portions and also t force said prongs into the shoe.

11. In a lasting machine, the combination with means for working an upper about an end of a last into lasted position, of means for applying about the end of the upper an upper-holding binder having at its opposite ends prongs arranged to be forced into the shoe to fasten it to the shoe, said binder-applying means comprising members constructed and arranged to engage the opposite end portions of the binder, means for moving said members lengthwise of the shoe to pull the binder tight against the upper, and additional means for moving said members widthwise of the shoe to force said prongs into the shoe.

12.. In a lasting machine, the combination with means for working an upper about an end of a last into lasted position, of means for applying about the end of the upper an upper-holding binder having at its opposite ends prongs arranged to be forced into the shoe to fasten it to the shoe, said binder-applying means comprising arms constructed and arranged to engage the opposite end portions of the binder, said arms being mounted to swing about an axis extending widthwise of the shoe to pull the binder tight against the upper and also to swing about axes extending lengthwise of the shoe to force said prongs into the shoe.

13. In a lasting machine, the combination with means for working an upper about an end of a last into lasted position, of means for applying about the end of the upper an upper-holding binder having at its opposite ends prongs arranged to be forced into the shoe to fasten it to the shoe, said binder-applying means comprising arms constructed and arranged to engage the opposite end portions of the binder, a rockshaft supporting said arms and movable about an axis extending widthwise of the shoe to cause the arms to pull the binder tight against the upper, means for thus operating said rockshaft, and additional means movable about said rockshaft for moving said arms inwardly toward each other to force said prongs into the shoe,

14. In a lasting machine, the combination with means for working an upper about an end of a' last into lasted position, of means for applying about the end of the upper an upper-holding binder portable with the last and shoe and provided at its opposite ends with prongs arranged to be forced into the shoe and also with loops arranged to extend outward laterally of the shoe, said binder-applying means comprising members having projection arranged to extend through said loops in directions lengthwise of the shoe, and means for moving said members lengthwise of the shoe to pull the binder tight against the upper and for also moving them laterally of' the shoe to force 'said prongs into the shoe.

CHARLES A. ROBINSON.