US1757163A - Heel-attaching machine - Google Patents

Description

May 6, 1930. F. E. BERTRAND HEEL ATTACHING- MACHINE 3 Sheets-Sheet l Filed Aug. 4, 192.6

May 6, 1930. F. E. BERTRAND I 4 1,757,163

HEEL ATTACHING MACHINE Filed Aug. 4, 1926 3 Sheets-Sheet 2 o y NVE/WML May 6, 1930. F. E. BERTRAND HEEL ATTACHING MACHINE Filed Aug. 4, 1926 3 Sheets-Sheet 3 Ff) l Patented May 6, 93

UNiTED STATES PATENT ori-"ICE FREDERIC E BERTRAND, oE InrNN, MASSACHUSETTS, AssIeNo'n To UNITED SHOE MACHINERY coRPonATIoN, E IATERsoN, VNEW JERSEY, AcoEPoEATIoN 0E.. NEW

JERSEY HEEL-ATTACHING MAGEIINE Application ined August 4, 192e, serial No. 127,634,` and ni Great einem April 24, 1926.

-This invention relates to machines for use in attaching heels to shoes and is herein illustrated as embodied in a machine of a type particularly adaptedv foi-carrying out the 5 method of Wood heel attaching disclosed in United States Letters lPatent No. 1,615,258, granted Jan. 25, 1927, upon an application filed in the name of Maurice V. Bresnahan, although in various aspects the invention is 0 not limited to embodiment in a machine of that type nor to use in practising that method. A. machine capable of use in practising the above-mentioned method *isl disclosed in my oo pendin'g application Serial No. 54,046, 5 filedv Sept. 2, 1925, of Which the present application is a continuation in part. The ma# chine just referred to comprises a clamping y device for holding a Wood heel in assembled relation with a shoe mounted on a last, While 0 a hole'lis being bored in the heel through a fastener-receiving hole in the last and While a fastener is' being inserted through' the hole in the last into the hole in the heel to secure the heel to the shoe during the setting of an adhesive Which has been applied between the heel andthe shoe. Y

The present invention has for one object the provision of an improved supporting device arranged to maintain` a last, upon Which the shoe is mounted, in Van upright position with the fastener-receiving hole in the last extending in aV vertical direction and with the heel in assembled relation With the shoe.y

porting the forepart of the shoe. The pivotal mount-ingY of. thetable Vpermits a shoe supported thereby to be tilted to bring the fasteneireceiving hole in the last into a vertical position, Whereas the yielding mounting of the toe plate permits the latter to yield if Y necessary to enable the tread face of the heel` of the supported shoe to lie flat` upon thepiv oted table irrespectiveV of differences. in the angular relations of the planes of the tread yieldingly mounted upon said'table for sup-V facesof the heel andthe sole. Furthermore,

since thefto'e plate is carried by the pivotally ber for engagingpthe cone of a last upon Which a shoe is mounted, a support opposite the last engaging member' arrangedV to engage the tread surfaces-ofthe'heel and sole of the shoe and toV co-operate'vvith said member to clamp the heel to the shoe, and unitary means for effecting relative adjustment of said support and said last engaging member. In the embodiment of the invention shovvn inthe drawings, the above described `parts are mounted above a horizontally disposed portion of a frame Work Which serves as a tray or bench and the means for effecting the relative adjustment of the clamping'membersis located above the surface of the'benchy Where it is readily. accessible tothe operator. As shown the adjusting means comprises a hand WheelV havingscreW-threaded engagement With a stem upon Which one ofthe cooperating clampingmembers is mounted, rotation of the hand Wheel moving said clamping member tovvard or from the vco-o eratin cla-m infr.

` Another object` of the invention is to locate successive lasts, upon which shoes are mounted, in amanner conducive to uniformity of operation in the attachment of heels tothe shoes. Since the boring and fastener insert-- ing-'operations are performed at the heel ends of the shoes, the foregoing object is attained by supportingsuccessive shoes VWith the heel ends of their lasts occupying the same position irres ective of variations in the style of lasts and height of heels being operated upon. Accordingly a further feature of the invention consists in the provision of meansv yfor subsequently substantially.- in a directionl engaging and supporting alasted shoe having a heel in assembled relation therewith, and a clamp member forV applying pressure to the cone of the last, movable into a predetermined position to act as a gage in adjusting said shoe engaging means to support successive shoes with the cones of their lasts occupying the sameV position notwithstanding variations in the style of the lasts or the height ofthe heels.

' In lorderto prevent the pivotally mounted i shoe supporting table from being tilted by the action of the last engaging clamping member yin .applying the clamping pressure, the invention provides for mounting the clamping member for movement from an idle position into a last engaging position and toward :the axisof pivotvof the table to apply clamping pressure to the top of a last upon which the supported shoe is mounted.

The various features of the invention will be best understood from a description of the preferred embodiment thereof, illustrated in the accompanying drawings, in which- Fig.. 1 is a view insideelevation of a heel attaching machine with parts broken away, showing particularly the construction of the clamping device Fig. 2 is an enlarged view" in sidev elevation of the clamping device;

y Fig. 3 is a detail view in perspective of the shoe supporting table, parts being broken away to show the manner in which the table is adjusted; and

Fig.v 4 is a rear viewof the mechanism shown in Fig. 2.

VReferring to the drawings, the illustrated device is adapted to operate upon a shoe S 1) having a heel H in` assembled relation therewith, the shoe being mounted upon a last L provided with a fastener-receiving hole X which extends from the'toprof the cone to the bottomk of the heel seat portion of the last. The device comprises a base framework 10 supporting atray or bench 12, a shoe supporting table 14,` which is locatedl above the bench or tray, and a last engaging clamping member 70 which is arranged to cooperate with the table 14 to clamp the shoe and theheel and the last together.

The shoe supporting table 14V (Fig. 3) is pivotally connected at 16 to a base 3,8 and comprises a heel plate 18 for engaging and supportinga heel such as the heel H of a shoe Si, and a vertically-adjustable toe plate 20 forV engaging and supporting the forepart of the shoe.` As shown in Fig. 2, thel lower c sideof the plate 20 is provided with a stem Y mi 22 which lits into a vhollow projection 24 formed on the forward extremity of theshoe supporting table 14. A plug 26 fills the lower opening in the hollow projection 24 and provides a fixed abutment upon which one extremity'of a compression spring 28 rests.

rlhe other extremity of the spring 28 bears against the end of the stem 22 and tends normally to urge upwardly the toe plate 20, while a slot andbolt arrangement 30 limits the extent of vertical movement which may be imparted to the toe plate. As before mentioned, the table 14 is vpivoted at 16 for vertical tilting movement, and a compression'spring 32 located beneath the'table tends normally to tilt the forepart of the table upwardly. The extent of this upward tilting movement is limited by means of a stop here illustrated in the form ofascrew 36, which engages the rear of the table, as best shown in Figs'l and4.f

An advantage of mounting the s hoe supporting` table 14 fortilting adjustment in the .i

manner described isthatthe stop 3G may be adjustedto cause raising or lowering of the forepart of the table against the action of thev` compression spring 32, thereby permitting a supported shoe to be tilted to position it so that the hole X in its last will be vertically disposed. By thus positioning the shoe, the tool which bores the hole in the heel and the tool which inserts the fastener (each of said tools being powerV driven and constituting a part of the complete heel attaching machine) may be more simply constructed and arranged than would be required for operating not only in a vertical direction but also in directions at an angle to the vertical.

Also, if desired, the table may-be tilted to` facilitate seating of the heel upon the heel seat of the shoe. For example, if the rim of the heel does not snuglyrengage the heel seat of the shoe at the breast line, the forepart of the table '14 may be tilted upwardly to force the heel closely against the shoe .at this point. Similarly, if the rear of the heel does not snugly engage the heel seat of the shoe, the

forward part of the table 14 may be tilted downwardly to raise the rear ofthe heel and thereby close any gap which may 'exist between the heel andthe shoe and secure afclose joint in this locality.

Thespring beneath the Vtoe plate 20'permits the latter to yield if necessary to enable the tread face of the heel to lie flat upon the tread plate 18 of the table irrespective of differ# ences beween the planes of the forepart of the sole and the tread face of the heel.

" A back rest46, cupped out to receive the otherwise be attained. VTo the end of permitting horizontal adjustment of the rest 46, the

' A screw 48 (Fig) controls vertical adjustl ment of the rest 46 to accommodate heels of different heights.

to position similarly the heel ends ofsuc'cesf` sive lasts, the table 14 is mounted for vertical adjustment for the purpose of locating the top surface of successive lasts in the same:

vvertical plane. Accordingly, the base 36 is provided with a screw threaded stem 50 (Fig.V

3) having a groove 52 extending throughout its length. A smoothly bored sleeve 54 loose-r Y ly surrounds the screw threaded stem 50 and is adapted to be inserted within a hollow boss 56 formed on the lower side of the tray v12(` (Fig. 2). A set screw 58 extends through the hollow boss and has frictional engage-I ment with the surface of thesleeve 54 to prevent relative movement between.' the 5. sleeve and the boss. A second hollow sleeve (i0V (Fig. 3) surrounds the inner sleeve54 andis of shorter length than the sleeve 54:-

so that its lower end may rest upon the'top surface ot the tray 12,1thereby providing an A additionalsupporting element for the tableA 14. Thusit will. be seen that the innerv and outer sleevesV 54 and 60 are rigidly mounted upon the tray 12 and that the stem 50 'carryay B ing the table 14 may be moved freely through y, the bore of the inner sleeve 54 to eiect vertical adjustment of the table. Y A. set screw 66V extends throughthe sleeves 54 and 60- preventing` relative movement between them and the end of the screw 66 has frictional engage-t nient with the bottom of the groove 52. Y By.

means of the screw 66 .the table 14m-ay be locked in a desired vertical 'adjustment Vand rotation of the stem 50 within thel sleeve 54 is prevented.4 i

j The structure defined in the preceding par.` i agraph provides a wayin which the table 14V may be manually adjusted to various heights. In addition to the provision of means for manually adjusting the table, a hand wheel 68 has been provided for effecting. mechanically this adjustment; The hand wheel 68 Y a clamping. memberO" (Figsg 2 and y4) which is mounted. for movement toward and away? is screw threaded uponthe stem 50and rotation of the wheel causesthe table 14. to be raised or lowered as desired.- It will be appreciated, inasmuch as the handY wheel 68 is located above the surface of the tray 12, that it provides a simple and' easily accessible means for effecting simultaneously, vertical adjustment of the tread plate 18,- the toe plate- 20 and the heel rest 416. g'

Located Aabove the surface of thetable 14. is

vfrom the table- 14 to clamp against the tablethe lasted shoe S and the heelH in assembled observed that-arms 75 vare bowed' .clamping member 70 is pro-vided centrally of f its length with a serrated'projection (Fig. A pair of C- shapedli'nk's 72, 74 areo'ifset to-g j wards theforward part of the table 14 to al* In addition to being provided with means lowthe greatest amount of space to be avaih `able inlpositi'oningv the shoe within the clamp,-

Intermediate betweentheir'ends thelinks (Fig. 1) .ofaiyoke sa Whaha pivoaufy mounted on a spindle 84 carried by a bracl'ret 86 attached tothe lower extremity ort-he nner sleeve 54. It will be observed that arms 80 are substantially longer than thearms 75. By this arrangement, whenever-,the clamping member 70 is moved upwardly', links 72, 74 arel pushed upwardly by arms `80 and are also rocked about the connections 7 6` witharms 75,-

to carry the clamping member 70 forwardly towards the toe end of the shoeto an inoperative position in whichi thel c-'larnpii'igv member will'not inte-rterewith the actions ofthe operative whenhe is engaged in placing a' shoe within the clamp or removing one therefrom. y a comparison of Figs.'2 and 4, it will be j upwardly and away-from links 7 2', 74-to permit a greater 'forward motionot links" 72, 74 than would ,otherwise bepossible without bringing the g links intoengagement withfthese arms..- The upwardand forward, ojr inoperative, position Y ofthe clampii'ig member 7 0 Visadjustably des Vtermined by a threaded stop v88 vwhich en-y vgages an' abutment 90 formed on the bracketse i -Arms' 72, 74 are rockedto operate the above described clampingA apparatus 'bymeansf of Vyieldingadjustable connections from a suitable-treadle" 92 (F ig. 1). The treadiler9'2 ris connected to a .twopart treadle rod 94 which- Inay be adj usted for length by means of a turn gbuclle96. A coil spring 98 extends between .the p'rojectifmY 86 and an arm 100 on the rod 94 Vand is for the purpose of holding the treadle and the movable parts ofthe clamping apparatus in theirupper vor idlet position. The upper extremity of the'treadle rod 94 is formed-into-a` head 102 againstjwhich one endl fof a spring 104 bears, the lower end of thel said spring 4losing arranged to bear against a yoke 106 connected to the arms 80. Since the rod 94 is' `free to movetliroughthe lower ex-A tremity of the yoke`106, itwill be understood that the arrangement just'describejd provides a yielding connection betweenthe r'od 9'4" and the l80`to which the yoke 106 is connecteV f ed. Amit 108 screwed aponthe rod 94 pro-- vides means for adjusting the compression of spring 104 and also serves as means to transmit to the yoke 106 any upward movement imparted to rod 94.` l'

clamp by standing on treadle 92, yet, if desired, as an alternative construction, a shoey may be held under clamping pressure, by means of a pawl 110 (Fig. 1) engaging-a ratchet 112 carried by a brace 114. I The pawl 110 is herein illustrated in the form of an auX- iliary treadle 116 pivotally mounted at 111 Aupon the treadle 92A and is held against ratchet 112 by-means of a spring 1,18. Thus depres- 'sionv of the treadle 92 causes the clamping member 7 0 to be locked inits downward po-` sition by reason of pawl 110 engaging ratchet 112r and depression of the'treadle 116 causes y the pawl 110 to move out of engagement with the ratchet 112 to release the treadle'92 .and permit upward movement of the clamping member 70..` Y

. The device is provided with a latchV or gage 120 for use in setting up the clamping device Whenever a change occurs in the style of the last or height of the vheel being operated upon. The latch 120, whichis shown in its inoperative position in Fig. 1, is movable into the position shown in Fig. 4 to straddle the inner projecting end `of thespindle 76 upon which the arm 7 2 is pivotallyV mounted.

When theA spindle 7 6is so` straddled by the gage 120, the clamping member 1 70- occupies an operative gagingV position, preliminaryv to applying pressure; Vthe. member-f70-has moved from thedotted line position of Fig.'

2, across the top of the arc through which itv isconstrained to move, and occupies the fullv line position shown in Fig. 2. Further mover.

ment of the member'O, from its position, takes placeV substantially alongl the line AB (Fig. 2) and substantially in thevdirection of the axis of pivot 16 of the table 14. As already pointed out, the ylatch 120 is arrangedto hold the'memberr() in its gag-V ing position. Then so held, the operator `of the machine places the shoe, for whichhe is setting the clamping: device, beneath the bar 70, with the serrated projection formed onthe bar engaging the cone forward of the perforation passing'through the last, and ina position toavoid interference with the j ack-- pin hole. Next the hand wheel68 Vis rotated to cause elevation of the table 14 until both thetread surface of thel heel and the sole ofthe shoe are engaged and-supported. Vhen this haspbeen done, the yshoe is held againstvertical displacement and the vertical position ofthe table relatively to the bar 70 is determined. The horizontal position of the rest 46 is-then determined by moving the restV intoengagement with the1 rear of the heel H.

lYhen the vertical and horizontal adjustments have both been made, the latch 120 is moved.V back into itsidle position and the clamping" device is then ready to operate in the same manner upon any number of shoes of the same style and height of heel for which the device I has been adjusted. While it is usually preferred to hold the,

In this connection 1t will be appreciated that in the ordinary course of shoe making` a number vof shoes of the 'same` style and having the same height of heel will come to the heel attaching machine in succession, so :that the clamping device, if properly adjusted for the first shoe in the series, will, without requin ingany additional adjustments, operate in the same manner upon all of the shoes in that series.` n

Having described Imy invention, what I claim as new and desireto secure by Lettersr VPatent of the United States is:

' l. In a shoe supporting device, the combination with a pivoted tread plate for engaging and supporting the tread face of the ing and supportin'githe heel end of the `shoe 'and Va yieldingly mounted toe-plate for engag! ing and-supporting the forepart of the shoe, ofv meansfor effectingv uniform and vsimultaneous vertical adjustment of the table and the toe plate. f

4. In a shoe supporting device, thepfcombination with a yieldingly mounted member for supporting thejforepart of the shoe and a pivotally mounted member for Supporting the rear of the shoe,lof means to engage.

and` apply pressure to the top of a last upon whichtheshoe is mountedto clamp the last andthe shoe and the lheel between the last engaging member fandithe supporting mem` l bers.

5. In a device forclainping a heel to a shoe, a clamping membervfor engaging the cone ofa last upon which the shoe is mounted, a support located opposite the last engaging member and arranged for engaging the tread surfaces of the heel andthe sole of the shoe,`and `unitary' means for effecting ad-L justment of said heel and sole engaging supf` port relatively to the last engaging` member.

*6.In a machine of the class described, -Y

vmeans for supporting a shoe by engagement with the tread faces of the heel and the sole of the. shoe, a member'for clamping theshoe to the tread engaging means and' a hori'# zontally and vertically adjustable member for engaging therear ofthe heel of a supported shoe.

7. In a machine of the class described, a j

frame, a table for supporting a shoek by engagement with the tread face of the vheel of the shoe, a pivotal connection Ybetween the table and the frame arranged to permit lasted shoe and a heel in assembled relation therewith by engagement with the tread faces of the heel and sole ofthe shoe,yielding means normally7 tending to hold the table in a substantially horizontal position, and a clamp member for engaging the top of the last to cla-mp the last and the shoe and heel in assembled relation between the last engaging member and the table. l

9. In a machine of the class described,'a table for supporting a shoe and heel in assembled relation, a member for engagingv the top of a last upon which the shoe is mounted,

and means for operating said member Y to clamp the last and the shoe and theheelv between the last engaging member and the supporting table, said means comprising a foot treadle and links for supporting the clamp member connectedwith the treadle and arranged at opposite sides of the shoe, said links being offset toward the forepart of the shoe.

10. In a shoe supporting device, the combination with a member for engaging and supporting the heel of a shoe, amember for engaging and supporting the toe of the shoe,

a member for engaging the rear wall ofthe heel of the shoe and a member for enga-ging the top surface of a last upon which the shoe is mounted, of unitary means for adjusting simultaneously said Vtoe and heel engaging members relatively to the lastv engaging member.

ll. In a device for clamping a heel to a lasted shoe, a member for engaging the cone of the last movable from aninoperative position to an operative position, a gage for predetermining said operative position, la support for the shoe located beneath the cone engaging member, and means for effecting adjustment of said shoe support relatively to the cone engaging member to accommodate shoes of different shapes and heels of different heights. Y Y

12. In a device for clamping a heel to a lasted shoe, means for engaging and supporting the lasted shoe and heelin assembled relation, and a clamp member movable into a predetermined position to act as a gage in adjusting the shoe engaging means to suplwith; the rclamp ,member `in portsuccessivcshoes' with' the cones of their lasts Yoccupying thesame :position notwithstanding lvariations in the style of lasts and height of heelsr being operated upon.

13. .In adeviee ofthe character described, means lfor engaging andsupporting alasted shoe and heel in yassembled relation, a clamp memberfmovable into a predetermined 'posi-f j tion to-act as a gage inadjustingthe shoel engagingmeans to support successive shoes with. the cones of their lasts occupying the sameposition notwithstanding variations in the style of lasts and height of heels being voperated upon .and a latch for co-operating Y I predetermning the kpositionzof the latter. l j

14. Ina `device for clamping a heel to a shoe,-a pivotally mounted table for supporting .theshoe andthe heel inan upright -position, and means for engaging the cone of a last upon which the shoe is mounted to clamp the last land theshoe and the heel in assembled relation between :the `cone engaging memberland .the supportingtable, said supporting, table being adjustable to-bring the cones of successive lasts upon which shoes are assembled into the same elevated position relativelyto the coneengaging means notwithstanding variations in the `style of lasts and height of heels being operated upon.

15. In a device for clamping a heel to a shoe, a pivotally mounted table for supporting'the shoe and heel in an upright position, means for` engaging. the cone of a last upon which 'the supported shoe is mounted to clamp the last and the shoe and the heel in assembled relation between the cone engaging member and the supporting table, and means for engaging the rear of the heel of a supported shoe adjustable to bring the heel ends of successive lasts into the same position relatively to the cone engaging means, notwithstanding variations in the style of lasts and height of yheels being operated upon.

16. In adevice for clamping a heel to a shoe, a pivotally mounted table for supporting the shoe and the heel in an upright position, and means for engaging the cone of a of the successive lasts, notwithstanding variations in the style of the lasts or the height of the heels. v Y

I7. In a device for clamping a heel to a shoe, a member for engaging a last upon last upon which the shoe is mounted to clamp Y for similarly positioning the rear of the cones whichthe shoe is mounted arranged for movement between an idle and a last-engaging position, means for predetermining the j last engaging position, -and shoe supporting means located opposite the last engaging member, said shoe supporting means being adjustable vertically and horizontally for the purpose of positioning a supported shoe relatively to the last engaging member when the latter is occupying its predetermined last engagin position. 18. n a device for clamping a heel to a shoe, thel combination With a pivoted table for engaging and supporting the heel end of the shoe, and` a yieldingly mounted toe plate for engaging `and supporting the forepart of the shoe, of a clamping member adapted to move from an inoperative position to a predeterminedoperative position above the a table and from that position substantially in a direction toward'the axis of pivot of the table to apply clamping pressure to the top of a last upon which the supported shoe is mounted. f f

In testimony whereof I 'have signed my name to this specification.

FREDERIC E-(BERTRAND.

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