US2125884A - Machine for lasting shoes - Google Patents

Description

Aug. 9, 1938.v E. BROTHERS 2,125,884

MACHINE FOR LAST ING SHOES vx/EN TUR.' a

E. BROTHERS Filed Oct. 4, 1957 MACHINE FOR LASTING SHOES Aug. 9, 1938.

Aug. 9, 1938. E. BROTHERS I 2,125,884

' 1 MACHINE FOR LASTING SHOES Filed Oct. 4, 1937 3 Sheets-Shet 3 ZZ f ` Patented Aug. 9, 1938 .Unir-e sra'res PATENT OFFICE 2,125,884.A MACHINE Fon LAsTI-Ne snoEs Application ctober4, 1937,v Serial No. 167,102`

12 Claims.

This invention relates to the manufacture of shoes-:and is illustrated hereinwithreference to machines for use inlasting shoes.

An important object of the invention is to prool-'vide-'an improvedmachine for use in securing shoe uppers in lasted relation `to insoles bycement which will be efficient, economical and easy to operate, and which Will expedite the operation of cement lasting a shoe upper;

" `To this end andin accordance with one feature of the invention, there is provided in a machine of the type referred'to means for supporting'a shoethe upper of which is to 'be lasted by cement,

in combination With a flexible memberfor Workb ing the lasting margin or allowance of the upper` in-to overlasted relation to an insole, and means `ioractuating said flexible member in a manner to cause it to operate on portions of the upper located at separated portionsof the shoe bottomv 2msimultaneously and in planes substantially parallel to the planes of the shoe bottom at Which saidportions of the ,upper are located.

As herein illustrated, 'the exible memberlprefeably comprises a wire which may be endless and 'f'ris provided with oppositely disposed loops adapted' Vto `surround and engage the lasting marginv of the upper at the toe and heel portions of the shoe. The actuatingmeans comprises a roll or drum carrying the flexible member and arranged when h-in an operative position `to locate ther loops in positions to Work thertoe and heel portions of the upper simultaneously into overlasted position. When the rollis rotated the loops of the wire member are drawn toward each Vother to |=5tance` at least equal to the lasting margin thereof;-

`Further objects andl features of the invention, including novel mechanisms for operatingthe shoe `supporting members yi'eldingly, formoving the ilexiblelasting member into and outlof operA` "=fative1position;` and for rotating the-irollfto actuate" the flexible lasting member after'- it has Ybeen locatedin its operative position, will now be described: connection with vthe accompanying ldrawings and Will thereafter be pointed'out inthe claims..

' the drawings; f

Fig; 1 is a side elevation of the machine embodying the presentV invention' vvith` parts broken away and in" section;

Fig; 2 is a similarview ofthe upper portion of 5 the machine on an enlarged scale afterthe machine has operated on a. shoe; and

Fig. 3 isa rearelevation of the upper portion of the machine after it' has operated on a shoe.

The machine comprises a base E and an up- 10 standing hollow column A having secured to its upper end by'screws H'ra horizontal bracket l2. The bracket |2` is provided with two upstanding walls I4, I6` between the upper portions of which is pivoted on a horizontal shaft I8 a pair of 15 L- shaped levers 20 and 22. The lever 22 has a lateral projection 24 at its upper end to which is` pivoted, by a pin 26, a shoe supporting and lupper lasting member 28.A The lever 28 likewise has pivoted on a lateral projection 38 by a pin 32a 2011 similar shoeV supportingand upperl'asting member 34. As shown in the drawings, the members 28; 34 are arrangedto engage the opposite sides of a shoe from about the tip line to the heel breast line and their configuration is such that they con-y 25- form substantially to the opposite sides of the portions'of the shoe which they are adapted to engage. V'llremembers 28, 34 arepreferably composed of metal' and are faced on their shoe engaging surfaces with relativelyyieldable material 30` 36f (Fig. 2)", such asleather4 or rubber. The ar-V rangement ofthese members4 on theupper ends of the levers 2U, 2-2`` is such that they normally assume the position shown in Fig. 1 relatively to the levers, but are capable of suflicient pivotal 35A movement to permit themto adjust themselves readily to the shape of the shoe. As shown in; Fig. 2, when the members 28, 34 aremoved: into operative relation to a shoe their upper portions overlapthe lasting' margin of the shoe bottom. 40

movement inside thecolumn 8:- The lowerend ,50"

off thev rod 54 isin. the form of'a disk 58 which has a` sliding nt. in the bore ofthe cylinder and thus acts-as a piston.A Interposed` between the-end of thepiston 581Y arrdl'anut 68- threaded into the top ofthe cylinderis-.a relatively heavy compression spring 62. The nut 60 may be adjusted in the cylinder to vary the tension on the spring 62 and it may be held in adjusted position by a lock nut 64 (Fig. 2).

A treadle rod 66 is adjustably secured to the lower end of the cylinder 56 and extends through lugs 68, 'l0 in the column 8 (Fig. 1) to be connected at its lower end by a pin and slot arrangement 'i2 to a treadle .14 fulcrumed on a shaft 16. The upward limit of the movement of the treadle is determined by a stop 18 on the base 6 and the treadle is normally maintained in its elevatedv end on an eccentric pin 84Uadcasting 86 having a laterally extending elongated portion 88. Ro-

tatably mounted in the casting 86 is a'fsleeve 90 .having formed on its inner or rightfhand end,

as viewed in Fig. 2, a pinion gear-.92. Mounted inside the sleeve 90 is the shank portion 94 of a roll or drum 96 which projectsinwardly beyond the casting and is arrangedwhen in an operative position to extend transversely of a shoe bottom at about the center of the shank portion of the shoe, as shown in Fig.`3. The roll or drum 96 is of such a diameter that when located as described above, its top side will lie substantially tangent to the plane of the forepart of a shoe bottom operatively positioned in the machine, and its bottom side will be tangent, or substantially so, to the general plane of the heel seat portion of the shoe. The sleeve 90 'and shank portion 94 of the roll are rotatably secured in the casting 8Brby a collar 98 bearing against an outerl surface of the casting and securedto the sleeve and shank 94 by a pin |00.v The roll 96 may be adjusted laterally of the machine for operating on shoes of different widths by the eccentric pin 84.

About midway of its length the roll 96 is provided with av diametrical hole |02 as shown in Fig. 3. These opposite ends of the hole |02, as best shown in Figs. 2 and 3,'are` rounded, outwardly to blend smoothly with the surface of the roll. Passing loosely through the hole |02 is a flexible member |04 .preferablya wire of spring steel which will bend readily and conform itself to different shapes. v The `iiexible member |04` is bent into the shape of a loop |06 at the portion thereof which extends out of theV end of the hole |02 nearest the top of VtheY roll, this loop eX- tending forwardly in a position to surround and engage the lasting margin of the forepart of the shoe upper when the shoe is operatively positioned in the machine. In other words, the loop |06 curves around the roll 96 from the hole |02 and, when the roll is in an operative position, extends forwardly substantially in the plane of the forepart of the shoe bottom. The opposite direction of the ilexible member |04, which extends out of the lower end of the hole |02, curves rearwardly around the bottomA of the roll and forms a loop |08 Awhich lies substantially inthe plane of the heel seat portion ,of the shoe botvtom and is in a positionto surround .and en,- gage the lasting margin'of the heel seatr p0rtion of the upper, as` shown inFigs. 2 and 3. Thelateral adjustment ofthe roll `96 provided by the eccentric pin 84 referred to lis suiiicient.

of the hole in conjunction with the exibility of the wire |04 will permit the intermediate portion of the wire to slip readily through the hole during rotation of the roll if one loop or the other should be held against movement longitudinally of the shoe bottom during such rotation.

When the roll is rotated the loops |06, |08 are caused to engage the lasting margins of the upper located at the toe and the heel seat portions of the shoe and to work these margins over the shoe bottom into overlasted position,

vthis operation being preferably facilitated by the operator grasping the marginal portions of the upper above the wire loops to insure that both loops will be moved rinto operative engagement with the upper during the initial rotation of the roll and that thereafter the pressure or pull of the loops in working the lasting allowance of the upper over the margin of the insole is substantially uniform at both portions of the shoe bottom.

As shown in Fig. l, the roll 96 and the flexible lasting member |04 are initially located in an upwardly inclined position at one side of the supporting members 28, 34, thereby providing ample space for the shoe to be mounted in these members without interference from the roll. The roll and lasting members are arranged to be swung downwardly into the position shown in Fig. 2, and the roll thereafter rotated to actuate the looped member in the following manner.

Mounted for reciprocating movement lengthkwise of the lateral projection 68 on the casting ||8 to a lower rod |20 having a slot |22 at its lower portion. The cylinder 56 has a screw |24 mounted therein which passes through the slot |22 in the lower rod |20 so that, upon downward movement of the cylinder, the entire rod is lowered to operate the rack bar and thereby to rotate the pinion 92 and roll 96. The amount that the pinion and roll are rotated in a clockwise direction, as viewed in Fig. 3, is governed by the distance the cylinder 56 is lowered by depression of the treadle 14, this rotation, of course, operating the oppositely disposed loops of the ilexible member to work the upper into overlasted position. The amount that the pinion and r'oll 94 may be rotated in an opposite or counterclookwise direction is determined by a stop pin |26 projecting from the lower end of the rack bar ||0 and having a flattened upper side adapted to engage a groove or notch |28 formed in the lower end of the projection 88. When the mechanism is in this-latter position, as shown in Fig. 1, the pin |24 on the cylinder is at the upper end of the slot |22 and the roll 96 is in its initial or inoperative position with respect to its rotation. A relatively light tension spring |30 (Figs. ,1 and 2) is secured at its upper end to a pin |32 in the casting 88 and at its lower end to the lever 20 for the purpose of swinging the roll automatically into a substantially horizontal or operative -position over the shoe so that it will be in a position to actuate the looped portions of the lasting member when the roll is rotated by the rack bar.

vIn operating the machine to secure a shoe upper in overlasted relation to an insole, a shoe upper A, assembled with an insole B (Fig. 2) on a last C, is placed between the supporting memloosely- A.between them. Theimarginal'portionV of-1 the outer surface of the insole B- andi-the'- inner' surface of the shoe upper Wi'llhave Vrst' been coated with a cementsuitablefor securing the upper in lasted relationArr to the insole. Cements which may be used Afor thisl purpose are preferably those which are tacky when applied or which' become tacky in a relatively'- short time thereafter such; for example,V as' latex or other types of` Irubber cement; 'f Theoperator depresses the treadl'e 14 to lower the cylinder 5% and, through the spring-pressed pis'f` ton' arrangement 58, $2-, toA swing the 'upper' arms of theV leversV 2'0, 224 toward each other to cause the" shoe supporting members 23, '3'4 to 'grip the opposite sides of the shoe yieldingly `over areas'V extending substantiallyfrom the tipline tothe heel breast line, as shown in Fig. 3. The shoe upper is thus clamped firmly against ythe last by` the yeldable facings on these supporting' members and the lastingmargins of the upper at `the opposite sides of' the shoe are *Worked over the outer face of the insole B and into lasted position, as shown in Fig. 2'.

As the cylinder 56' descends `and the levers 20,. 22 swing toward each other to grip the shoe, thev angle of the casting 68 and roll ,96 on the lever` becomes such that the casting is more nearly balanced above its pivot 84 and the light'spring` is then sufficient to pull it forwardly auto` matically into the substantially horizontal position shown in Fig. 2,th`is latter position being determined by the `upper face of the lateralproj'ection 3l) on the lever 2U. The roll 964 is then in a position transversely ofthe shank` portion of the shoe bottom to actuate the flexible lasting` member IM and to cause the loops- IDS, |08 to move into engagement with the marginsof the shoe upper at the toe and heel seat portions of the shoe bottom and to Work these margins over the edges-of the insole and into lasted relation thereto. The operator will now make sure` that the looped portions l-, |58 of the lexiblemem ber are surrounding the lasting margins of. the upper and he may preferably graspv the upper, above said looped portions to insurey that theL latter exert a wiping pull thereon and also'` tov insure that, if one looped portion engages the upper before the other, the portion of the wire passing through the roll will slip until both looped portions are in operative relation to the marginal portions of the upper.

As the treadle is depressed further the pin |24 on the cylinder engages the lower end of the slot |22 in the rod |20 and lowers this rod to reciprocate the rack bar l0 and rotate the pinion 92 and roll 96. Rotation of the roll draws the looped portions of the ilexible lasting member toward each other lengthwise of the shoe until the lasting margins of the upper at both the toe end and the heel seat portion of the shoe are Worked entirely over the marginal portion of the insole and have become secured in lasted relation thereto by the cement.

The operator may then release the treadle, which is returnedto its elevated position by the compression spring 8B, thereby elevating the cylinder 56 and returning the casting 86 and roll 96 to the position shown in Fig. 1, this action putting a tension on the spring |30 which is utilized thereafter in swinging the rol1`- into its horizontal-positiony for operating on another shoe, as explained above. The-side lasting members or supports 2B and 3l! are by thissame action returned to their open positions ready to receiveanother shoe.

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

1. In a machine for lasting shoes, the combination-of means for supporting a shoe, a Ilexiblemember for working the lasting margin of the-shoe upper into'overlasted relation to an insole; and means for actuating saidilexible member to cause it to operate on portionsof the upper located `at separatedportions of the shoe bottom simultaneously and'in planes substan` tially parallel-to the planes of "the shoe bottom at which said portions of the upper are located.

2. In a machine for lasting shoes, the combination ofl means for Ysupporting a shoe, a flexible member for engaging the lasting allowance of the shoe upper and working it into overlasted ranged to position the looped portionsthereof in proper planes for operating simultaneously on said opposite endl portions of the upper.

4. In a machine for lasting shoes, the combination of means for supporting a shoe, a ilexible member provided with loops for engaging and working the forepart and heel portions of the shoe upper into overlasted position, and a roll for supporting and simultaneously actuating the loops ofsaid member, said rollA extending trans- Versely of the shank portion of the shoe when in operative position and being of a diameter that positions said'lo'ops in planes substantially parallel to. the planes of' the forepart and the heelrportions of the shoe bottom respectively.

5. In a. machine for lasting shoes, the combination of means for supporting a'shoe, a roll extending transversely of the shoe bottom whenY in an operative position and provided with a hole crossing its own axis, a ilexible member passing through said hole and provided With loops for engaging and Working the toe and heel portions of the shoe upper simultaneously into overlasted position, and means for rotating said roll.

6. In a machine for lasting shoes, the combination of means for supporting a shoe, a flexible member provided with oppositely disposed loops for working the portions of the shoe upper at opposite ends of the shoe into overlasted position, and rotatable means for actuating said flexible member constructed and arranged to permit said member to slip relatively to said rotatable means if one of said loops should be in a position to operate on the upper before the other loop is in such position, thereby insuring that both portions of the upper will be lasted simultaneously irrespective of their being initially 1ocated unequal distances from their respective loops.

'1. In a machine for lasting shoes, the combination of means for supporting a shoe, a rotatable roll extending transversely of the shank portion of the shoe when in an operative position and provided with a diametrical hole at right angles thereto, a exible wire passing loosely through said hole and having a loop at one end of the hole for working the toe portion of the shoe upper into overlasted position, and a loop at the other end of the hole for working the heel seat portion of the upper into overlasted position, the diameter of said roll being such that said loops operate in planes substantially parallel to the planes of the portions of the shoe bottom upon which the respective loops are arranged to operate, and the arrangement of the wire and roll being such that, if one loop engages the upper before the other loop, the wire slips lengthwise through the hole untilsaid other loop is in upper engaging position, and treadle operatedmeans for rotating said roll.

8. In a machine for lasting shoes, the combination of means for supporting a shoe, a flexible member for working the portions of the shoe upper at opposite ends of the shoe into overlasted position, a roll for supporting and actuating said member, said roll being arranged to swing from an inoperative position at one side of the shoe into a substantially horizontal operative position extending transversely of the shank portion of the shoe, and means for swinging said roll into said operative position and for thereafter rotating the roll to actuate the flexible member so that it operates on both end portions of the upper simultaneously and with substantially equal force.

9. In a machine for lasting shoes, the combination of means for supporting a shoe, a wire formed into loops for working the portions of the upper at the toe and heel portions of the shoe into overlasted position, a roll for supporting said operate, and means for rotating the roll to actuate the loops simultaneously.

10. In a machine for lasting shoes, the combination of means for supporting a shoe at opposite sides thereof between its toe and heel portions and for working the upper at said opposite sides into overlasted position, flexible means pro,- vided with loops for working the' toe and heel portions of the upper into overlasted position,

and single means for actuating said supporting means and said exible means, thereby to work the entire upper into overlasted position.

11. In a machine for lasting shoes, the combination of members for supporting a shoe, said members engaging the opposite sides of the shoe between its toe and heel seat portions and being adapted to be moved yieldingly toward the shoe to work the opposite sides of the upper between said toe and heel seat portions into overlasted position, a flexible member provided with oppositely extending loops for working the toe and heel seat portions of the upper into overlasted position, a roll supporting said flexible member and rotatable to-actuate said member, said roll being arranged to be swung into a position extending transversely of the shoe bottom from an upwardly inclined position at one side of the shoe, and single means for moving the shoe supporting members yieldingly toward the shoe to work the opposite side portions of the upper into overlasted position, for swinging the roll into said transverse position, and for thereafter rotating said roll to cause the loops of the flexible member to work the toe and heel seat portions of the upper simultaneously into overlasted position.

12. In a machine for lasting shoes, the combination of members for supporting the opposite sides of a shoe between its toe and heel seat portions, said members being also operable to work the lasting margins of the upper at the sides of the shoe engaged thereby into overlasted position, pivoted levers for supporting said members, a roll carried by one of said levers and arranged to swing from an upwardly inclined inoperative position to an operative position over the shoe, a flexible member carried by said roll and having loops arranged by rotation of the roll to work the toe and heel seat portions of the upper simultaneously into overlasted position, means for moving said levers yieldingly toward the shoe to cause the supporting members to operate on the opposite sides of the upper, resilient means for swinging said roll and flexible member into operative position over the shoe as the levers operate, and means actuated by the operation of said moving means and in timed relation thereto for rotating the roll to cause the loops on said exible member to work the toe and heel seat portions of the upper simultaneously into overlasted position.

ELI BROTHERS.

l CERTIFICATE OFICORRECTION. Patent Nm 2,125,88h 1 .Y August-9, i958 v ELi BROTHERS.,

` It is hereby certified that error appears in the printed 4specification of the above numbered patent requiring correction as follows: Page 2, first column, line 65, for the word "direction" read portion; and that the said 4 Letters Patent should be read with thi-sncorrection therein thatv the same may conform to the record of the oase in `theA Patent Office.

Signed and sealed this 20th day of December, A. 'Dr 1958.

' Henry Van Arsdal e (Seal) Acting Commissioner of Patents-

Images