US2334248A - Sole fitting machine - Google Patents

Description

Nov. 16, 1943. J c, CANTLEY I 2,334,248

SOLE FITTING MACHINE 7 Filed Nov. 13, '1941 4 Sheets-Sheet l I m Flgfl.

l I I i I Nov. 16, 1943. J c. CANTLEY SOLE FITTING MACHINE Filed Nov. 13, 1941 4 Sheets-Sheet 2 Nov. 16, 1943. J. c. CANTLEY 1 2,334,248

SOLE FITTING MACHINE Filed Nov. 13, 194i 4 Sheets-Sheet s Nov. 16, 1943. J. c. CANTLEY SOLE FITTING MACHINE 4 Sheets-Sheet 4 Filed Nov. 13, 1941 "T T v l UN INKEI I Patented Nov. 16, 1943 Joseph C. Cantlemfieverly, Mass'., assignor to United Shoe Machinery Corporation, Flemington, N. J a corporation of New Jersey Application Novem er 13, 1941, Serial No. 418,959 4 Claims. (oi. 12-17) f .This invention relates to sole fitting machines, and is herein illustrated as embodied in a feather edge and shank reducing machine. Machines of this type are provided with a stationaryknife for making an inclined orskiving cut, upon the I flesh surface of a soleas the sole is being fed past the knife in contact with anedge gage;- The knife ismountedfor adjustment of the inclination of its cutting edge to enable the an'gleof the cut to be varied. v

In accordance with a feature of the present invention, the illustrated machine in provided with a knife support rotatably mounted in a bearingto enable the inclination of the knife to be varied, this knife support having an arm extending to a locality convenient to the, operator to facilitate makingthe adjustment. The machine is further provided with a carrier ,upon which both the knife and the edge gage are mounted, the carrier being movable for adjustment in a direction transverse to the feed of the sole. In the illustrated machine, .not only: the knife and the. edge gage are mounted upon this carrierbut a work support is also mounted upon it to enable these members to be adjusted ;si-' multaneously ,in a direction transverse to: the feed. of the workjwithout disturbin their relationto one another.

These and otherfeatures of the invention, including certain detailshf construction and combinations of parts will ,be described as embodied in an illustrative machineand'pointed out in the appended claims. the accompanying drawings,

Fig. 1 is a view partlyin end elevation and partly in section of the headpf amachine in Referring now to tweenthe bracket 32 and the block 24 permits justment in adirection transverse to the feed of the work. The; head His provided withqa horizontal guideway for the block 24,;andl a winged clamping bolt '26, extending through a horizontal slot. 28 in the. block and threaded into theChead 22, clamps the block 'in adjusted position, The work support l2. isin theform of a driven rotary'table of frusto-conical form, the vertex. angle of the cone being obtuse This table is carried upon the upper end of ashaft tiljournaled' in bearings carried in a bracket 32 securedby screws 33 (Fig.2) to the block 24. A tongue and, groove connection (Fig. 1) beadjustment of the-block relatively to the bracket inja. direction which is horizontal and transverse tothe direction of feedof the work. The screws'33 are threaded into the block 24 and pass through suitable slots in the bracket 32. The

which the invention is embodied;

Fig.2 is a view in side elevation the machine shown in Fig. 1; I v Fig. 3 is a' section on the line III-III of Fig 1; Fig. 4 is a section on theline IV IV of Fig. 2; and. g V

Fig. 5 anangular view of the knife carrier and associated parts. i e l The operating instrumentalities of the machine consist of a shank reducing or feather.

edging knife [0 (Figs. 3, 4and5) a work support H, a feed wheel l4 (Figs. 2 and 3), apresser foot. 16 (Fig. 2), and an edge gage I,(Figs. fiend-g4).

The supporting structure of the machine, corn-e prises a standard 20 upon which is mounteda head 22.

The; knife M ill, the worksupport It, and; l a edge gage iii are all indirectly carried by a block ZQIr'vhichis slidably mounted for horizontal' ad of'the header.

drivethe work table. is inclined from the vertical at such an angle purpose of the adjustment is to secure proper meshing of the gears, later to be described, which The axis'of the shaft 30 as to cause the work-engaging elements of the frusto-conical surfaceto be substantially horizontal. The only movement of the work sup.-

port l2 relative to the block 24, except the ad justment provided by the; tongue-and-groove connectiong35, is one of rotation about, the axis of the shaft 30. 1 q; 1. H, i

The, knife ,III, as shown in Figs. A1 and 5, is

clamped in a block 34 having'a guideway substantially parallel to the blade ofthe knife.

The shank of the knife iscIamped in this guide: way in any desired position;of longitudinal adjustment by a clamping bolt 36 passingthrough a clamping block 38 and threaded intotheblcck 34. A plate 40, adjustablymounted uponthe block 34, has a shouldered portion 42 engageable with the end of the shank of theknife to facilitate reinsertion of the knife, after sharpening, to a predetermined position ofadjustment. The

block 34 is integral with; an arcuate slide 44,

which is rotatable in an arcuate guideway 45 formed in a supporting bracket 46. i The bracket 46, as illustrated,'is recessed at the locality indicated by the reference numeral 41 to provide a clearance space through which the sole may pass as it is being fed at various angles, determined.

by its edge contoun. The slide 44 has a cylindrical edge face 48 which directly engages; the I complementally curved surface of the guideway 45, and it has also an outer edge face 50 which is conical or beveled for engagement with a .complementally shaped surface formed ona clamping block 52. The clamping pressure of the block 52 is obtained by a bolt 54 passing through the block 52 and threaded-into the bracket 46. Angular adjustment of the slide 44 may thus be efiected by loosening the bolt 54, turning the slide to the desired adjusted position, and then tightening the bolt 54. Extending upwardly from the bracket 461s aplate 56 the upper end portion of which, ,as-shown'in Fig. 3, isin' the form of a graduated sector 58 concentric with the axis of the guideway 45. Extending upwardly from the slide 44 is a pointer 60 which cooperates with the sector 58 to indicate the adjusted positionof the The pointer is longer than the distance knife. of theknife from the center of rotation of the slide 44, and it will therefore be readily seen that by means of the pointer 60 and the sector 53 the operator may effect a fine adjustment of the knife. Both the pointer 60 and the sector 58 are positioned conveniently for observation and I access, and at a locality remote from the :knife to permit a' 'clear view ofthe operation.

a Formed on the undersurface of the bracket 46 is a tongue .62 (Figs. Sand which is slidable in a horizontal guideway formed. in. alblock 4. The purpose-of this slidablelconnection is'to' pro vide for adjustment of. the knife in a direction parallel to the feed. of the work and transverse tothe-direction to whichthe block 24 may be adjusted. When the blade of the knife leis ground away in sharpening; the adjustment a-fforded by this tongue and groove enables the [new cutting edge of the knife tobebrought into proper e operating position. The block 46 may be secured in any -clesired position of adjustment along the guideway by a clamping bolt (Fig. 1) extending upwardly through aslotfi l- (Fig. 4) in the block 64 and threaded into the bracket 45. The block 64- -*is slidably' mounted in a vertical guideway formed infa downwardextension 68 0f the block 24. 'nnopen' sideof this vertical guideway is closed by a-retaining plate 69'and the lower end of the --guideway' is-closed by a cover plate '10. Threaded-into the flowere'nd of'the block 64 isa screw 12 upon-which is rigidly mounted a collar- A compression spring 16, housed the position of the knife and of the axis about v which it may be adjusted depend also upon the horizontal adjustment of the block 24 in its guideway.

The edge gage i8 is tangent to the work table, allowing for reasonable clearance, ata point directly below the axis mentioned in the preceding paragraph and .it extends almost te -the cutting edge of the knife. The' edge"gage i's tsecured by a clamping bolt 87 to an arm 88 (Figs. 1 and 2) fulcrumed upon a pin. 9?] carried by the block 24, i

'The clamping bolt passes through an opening in the edge gage large enough for the slight degree .of shop adjustment which may be necessary. The arm ,88 is' free to swing up and down in a suitable slotformed in the block 24. .A compression spring 92, housed in. a bore within the block 24, engages the under surface of the arm 88 to I urge theeclge gage upwardly against an extension 89 of the presser foot IS. The presser foot thus controls the heightwise position of the edge-gage. and the-edgegage rises and 'falls in accordance with the varying thickness of the work piece. An ordinary presser foot, without the extension 89, may be used if desired. In such case,th

arm :88 issecured in a suitable position of 'heig-ht- 1.

Wise adjustment by a-"screw fi l threaded intothe block 24 and having itsendengag'eable with a... I

side of the arm '88 to "clamp the"-ar-m= against! wall of the above-mentioned 'slot." v f The feed whee1' l4 is carried upon-theotitehen of a shaft -94 which is journaled in afh'ead "88 which extends over the knife 410. A guard '81 carried by the head 96 partly encloses the feed wheel. Extending 'from th e head 86 me enema,"

parallel tothe feed-of the work is an arm '98 (Fig. =1); which is fulcrumed upon'apin W0 mounted in a bracket 102 extending from the head of the'machine 2- 2. The arm "Strand the vertically movable about fthepin 100 and the feed wheel may, therefore, yield-'heightwise to -accom ofthe block -6 4.-*T-helower end of the spring -16 abuts'a'gainst a; plug 86 threaded into the lower end df the borewhich'contains-the'spring. Turnin'g of-the plug *86 serves to adjust, the degree of compression of the spring. It will be observed;

that the above-described arrangements for mounting the 'knife -10 enable the knife to be adjusted vertically;*horizontally in a direction parallel to the'feed of the work,- and also "an-gularly-about the axis bf the arcuate guideway "45.

This axis is horizontal, extending -paral1elto the direction'of feed-of the work, and lying in-a vertical-plane -which=is tangent-tothe edge of the work table 1 2 and to the work-engaging portion of the edge gage 1 8. As the knife is adjusted vertically, the axis about which it is adjusted moves up and down' with it. In addition to the adjustments just described, it will be noted that modate variations in thethickn'ess *of ,a work piece. As shown in Fig. 2, the movable head 96 has a finished suriace-'-slidably engageable jor additional support with a finished surface :"23 on the machine headtz; 'In'orde1" to hold the reed wheel I 4 down against the workpiece upon which it is operating, there is provided a lever rut-n11- crumed upon a pinwfi s'eclired'in the headfii; of the machine. Bearing downwardly upon th'ej lever 1'04 isthelow'er end-of a compression spring H18. the upper end oi which'spring'bears against: 7

a knurled head I ll] of'a screw 1 t2 threaded into the head 21. interposed between the outer iend of the lever I04 and the head 9.6 'is a strut "I14; having rounded endsengageableflwith comple mentally formed recesses in {the lever-and in *the head. The compression fof the spring .1108 and" accordingly thedegree off-pressureof thefeed wheel against the 'work-may bewaried by turningv the nut HQ. Inorder to limit downward movement of the feed wheeland prevent its engage ment with the work table [2-, there is providedfa', stop screw 6- (-Fig'wl) threaded through an 'extension H 3 carriedbytheswinging arm L98, the,

lowerend of the-screw t'l iibeinggengageable with a surface formed on the machine head '22.

"The 'presser'foot l t-is positioned immediately in advance of the cutting edge oft-he knife "I [tin order to hold the sole firmly uponthe work table. The presser foot is carried upon the lower end of a slide I20 ('Fig. 2') which is vertically slida'ble in a guideway formed the 1183431195. A .coveiwf plate- I2-I retains the slide-l20 within the guide'-" way. aThe presser. foot. has a. tongue -and-groove connection rI23:(Fig.' 2)- withthe slide I20 to pro.-

vide for adjustment of the presserfoot in the direction of feed of the work. A clamping bolt I25 passing 'througha suitable slot in the slide I20. secures the presser foot to the slidein any adjusted position. :.A.ficompression springr I22 surrounding a pin I24 urges the slide I20 downwardlyto cause the presser foottobearupon the work. The pin I24 is secured in and extends upwardly-from the slide I20. The upperend of the spring I22 bears against" a nut I26 loosely surrounding the pin I24 and threaded for heighta wise adjustmentinto abracket I21 I carried by the head 96. The spring .l22/iswe'aker. than the spring 108 and stronger than the spring'92. Its :force may be .variedrto vary the pressure of the presser foot on the Wdlk by turning the nut I26. A nut I20 backed up by airlock nutlI29 and threaded upon .the' upper portion. of the. pin

I24 engages the bracket I21 1 to prevent the presser foot from striking the work' table when there is nowork piece on the work table.

In order to provide for raising the feed wheel and the presser foot to facilitate the insertion of a workpiece, a lever I30 (Figs. 1 and 2) is fulcrumed upon a pin I32 carried by a boss I33 on the bracket I02 (Fig. 1). ly from one end of the lever I30 is a rod I34 secured at its lower end to a treadle (not shown). The other end of the lever I30 is connected to a link I36 which transmits movement of the lever to the arm '98. It is evident that depression of the treadle above-mentioned will operate through the lever I30 andlink I36 to raise the feed wheel I4 and presser foot I6 against the force of the spring I08. The connection between the lever I30 and the link I36 includes a knurled nut I35 and a winged locknut I3I both threaded upon the upper end portion of the link I36. I36 passes loosely through an opening in the lever I30, and the lever bears upwardly against the nut I35 when the treadle is depressed. The nut I35 may be adjusted upwardly to provide lost motion for a purpose later to be explained.

It is desirable also to provide for raising the knife I when a new work piece is to be inserted. This is accomplished by a lever I38 fulcrumed upon a pin I40 (Figs. 3 and 4) mounted in the head 22 and engageable at one end with a collar I42 (Fig. 1) adjustably mountedupon the rod I34. The opposite endxof the lever I38 bears upwardly against an under surface of the block 64. raise the block 64 against the compression of the spring I6. j 5

The purpose of the above-mentioned provision for lost motion between the lever I30 and the link I36 is to enable the knife to be raised without raising the feed wheel and the presser foot. When the machine is thus adjusted for lost motion, a sole may be fed entirely around, withits I edge portion constantly engaged by the feed wheel and the presser foot, while the knife may be raised by a partial depression of the treadle The link Depression of the treadle will, therefore,

adjustment aof the knife silde "44. about the axis Extending downwardof'the shaftwI54carries abevele'dgear' I56 which drives a beveled gear I carried by the shaft 30 directlyundenthe work table I2.-. Meshing with the gear. I52 and drivennthereby is a gear I60 journaled upon a .ball bearing'IBZ secured in a plate 163 mounted on the head 22. ,.Extehding from thei gear I60 is a short shaft.I64 which is connected, :through. 7 an. intermediate shaft I66 and two 'universal joints I68, to the-shaft 94; Drive of the:feed wheel may thus be effected from the gear .160, notwithstanding the) heightwise movement of the feed wheel. I r

. Inithe'operation of the machine, the feed wheel, the. pr'esserfoot :andthe: knife are all raised by the operation of the. treadle abo-ve-gmentioned. A

sole Sxis thenpresented uponthe work plate I2 .With'thev edgefface of. the sole.against the edge The angle of the beveled cut madein shank reducing or the angle of the feather, if the operation isaround thefore part of the shoeymay bevariedi by the angular of ttheguideway 45. It will, beobserved that the point to which the knife intersects the edge face of the sole will not be varied by this angular adjustment because the center about which the knife rotates is in the edge face of the sole itself. This adjustment may be made accurately by reason of the long pointer 6iland the graduated sector 5 8,and it may be made easily because both the pointer and the sector are positioned above the feed: wheel in a locality conveniently accessible to the operator. I-Ieightwise adjustment of the knife will of course not affectits angular verse to the feed of the work will serve to adjust the work table, the knife, and the edge gage in unison relatively to the feed wheel and to the presser foot, without disturbing the relations of the work table, the knife, and. the edge gage to one another. Such provision for horizontal adjustment enables the operator to keep the distance between the upper feed wheel and the end of the knife down to a minimum. Knives of different length are provided according to the particular kind of work to be done and therefore in the case of a short knife the upper feed wheel convenient in operation and more economical in manufacture than any feed wheel itself axially.

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

to avoid acting upon the heel portion of the sole. I

The feed wheel I4 and the work table I2 are' both positively driven from a shaft I44 (Fig. 3) journaled in the machine head 22 and carrying at its outer end a pulley I46 (Fig. 1) which may be connected by a belt to anysuitable source of power. Secured upon the shaft I44 is a gear I48 which transmits rotation through an idler gear I50 to a gear I52 secured upon the end of a'shaft 1. A; sole fitting machine, comprising a work table, a knife for beveling-the margin of a sole on said work table, a feed wheel engageable with the sole beyond the-end of said knife, 2. head extending over said knife for supporting said feed wheel, an arcuate guideway, a slide carrying said knife and slidable in said arcuate guideway to enable the inclination of the knife to be varied,

an arm extending upwardly from said slide and toone side of said head to a height greater than the height of the head and of the feed wheel,

said arm being conveniently accessible to the operator to facilitate movement of the slide in the guideway to .a desired position of adjustment of the knife, and a graduated sector adjacent to and cooperating with said arm to enable the operator provision for adjusting the from the .center of thea cuate .guideway foir .puig

poses offineadjustment; x e v 2 A sole fitting machine, comprising 'soie feed ing means, a knife for operating upon a ss'oia'an auouataguidewama slide carrying said knifeian'd slidab'le for adjustment. insaid arcliate ggndeway to: waryt-he inclination. of the-remitting edge. of the knife relatively tothe stole; an edge gage, .and a common carrier'for said arcuatewgnideway and said edge gage, said canrier-beingadjustable relatively to. the feeding means in aidirection transverse'tofthe' feed of the sole, :and said arcuate y and the edge gauge in unison ina'directiontrans- 1 versetotheieed oI-zthe worhxa slide for carry; v ing'said toq1;.said' common carrier havinga'guideway :imwhiohsaid tool-canning slide maybe ad iusted'in the direction of vieed of the work indeguideway being'bositioned in said carried to ca-use the axis about which the inclination of the knife may bevaried to lie in aplane' tangent'tothe work-engaging portion of the edge'gage, :said

relation between the arcuate guideway and the edge gage remaining constant notwithstanding transverse adjustment of the carrier.

, 3. Ina sole fitting machine, :awork table, atool for operating upon a sole on said work itable an edge/gage for gaging the'sole relatively to said enemas L v tooL-a common carrier for said vor}; tahlasfld tool and said 'edgega ge, said common carrier he Q ing adjustable to move the work table, the too] and the edgegage in unison in a direction verse-ta the feediotthe work,'means for-yield ably-holding said tool downin a normal; position 4 m operation, and-operator-controllecl" means 10:" raising :saichtdol 'itelativeiy tosaid work table; v,

- 4.: Ina. soie fitting mach ine, a. work tabla]. toolfer operating upon a solezon said worktable,

an (edge-gage for gaging the'sole relatively vtosaid tooLia. common carrier for said work tahlie, said tool :and said edge gage, said common-earner beingadinstable to move the work table, the tool pendentiy-oithe work table, and means iorzsecur said guideway.

, JOSEPH a I

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