US2950491A - Shoe supports - Google Patents

Shoe supports Download PDF

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US2950491A
US2950491A US725865A US72586558A US2950491A US 2950491 A US2950491 A US 2950491A US 725865 A US725865 A US 725865A US 72586558 A US72586558 A US 72586558A US 2950491 A US2950491 A US 2950491A
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jack
shoe
pin
arm
toe
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US725865A
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William A Barker
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United Shoe Machinery Corp
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United Shoe Machinery Corp
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    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D89/00Sole-levelling machines with rolls

Definitions

  • This invention relates to machines for operating on shoes, for shaping or leveling the bottoms thereof. More particularly, the invention relates to shoe supports and is illustrated as embodied in a machine ⁇ of the type having a leveling tool, a shoe support, power operated -means for etecting relative movements of the shoe support and the leveling tool in opposite .directions lengthwise of .a shoe on a support to cause the tool to .operate progressively along the shoe bottom.
  • a machine is illustrated and described in United States Letters Patent No. 2,855,616, granted October 14, 1958, in my name and of which this application is a division.
  • the shoe support comprises a toe support and a heel support adjustable relatively thereto to accommodate shoes of different sizes. It is desirable that the toe yend of the shoe .occupy a predetermined position relatively to the leveling tool and to insure the proper location of .the shoe thereon and accordingly the proper positioning of the heel support, a gage is associated with the toe support.
  • the gage projects above the toe support for engagement by the toe end of the shoe and mechanism is provided for retracting the gage to avoid interference with the leveling tool during movement of the shoe support to carry the shoe beneath the leveling tool.
  • the heel support includes a last pin arranged to be received by the thimble of a last, the last pin being movable about an axis extending transversely of the last thereon so that the toe end of the last may be forced against the toe support and the last pin is also movable laterally about an axis extending lengthwise of the last to insure the proper relationship between the last and the toe support.
  • the last pin is locked against further lateral movements preparatory to the leveling operation.
  • l Fig. 1 is a right elevation partly in section of one form of machine embodying lthe invention
  • Fig. 2 is a right elevation partly in section illustrating one of the jacks in a forward position to receive a shoe
  • Fig. 2a is a front elevation of the last pin mounting mechanism
  • Fig. 2b is a side elevation with parts broken away of the last pin locking means
  • Fig. 3 is a right elevation partly in section of mechanism by which the jack is actuated to carry the shoe for wardly and rearwardly beneath a leveling roll;
  • Fig. 4 is a detail .of .a portion of the jack actuating mechanism, this view .being taken at right angles t0 Fig. 3.
  • each jack comprises a toe support 146, a heel support 148 and a cone support 150.
  • the toe support A146 comprises a rubber pad 152 having a recess 15.4 shaped to conform to the toe portion of a shoe.
  • the pad 152 is carried by a plate 156 having a pair o f downwardly extending pins 158 fitting into holes in a 'block 169.
  • the pad 152 and the plate 156 may be removed from the block 160 merely by lifting them whereby they are readily replaced if desired by an assembly having a toe pad -with a diiferently shaped recess.
  • the block 160 is carried for Arocking movement whereby the pad accommodates itself to the toe end of the shoe.
  • the block is mounted between side walls of an adjustable support 162 between the sides of which are journaled rolls 164 on which rests the curved bottom face of the block 160, so that the block and the toe pad may rock forwardly or rearwardly.
  • the amount of rocking movement is limited by a pin 16h engageable with the sides .of a recess 16S formed in the block 160. Engagement of this pin with the bottom of the recess Vprevents the block from being lifted from the adjustable support 162.
  • r[he lengthwise position of the shoe 4with reSpeCt to the toe support is controlled by a toe gage 170.
  • This gage Vis carried for heightwise adjustment in a holder 172 which is pivotally mounted at 174 on the rearward end of a .lever u17,6.
  • This lever is pivoted on a pin 178 which carries the rear block supporting roll 164 and has a Aforwardly extending arm 189 which is normally held by a spring 182 against a pin 184 carrying the forward block supporting roll 164.
  • the toe gage holder 172 has a downwardly extending Aarm 185 carrying an adjustable stop screw 1 86 which is normally held in engagement with a jack post 188 by a torsion spring 19t).
  • the stop screw 18.6 the position of the gage lengthwise of the toe support may be readily adjusted.
  • the lever 1,76 is moved in a clockwise direction about the pivot 17.8 to rnove the toe gage downwardly to avoid interference with the leveling roll as will be hereinafter eXPlaiued-
  • the adjustable support 1562 for the ⁇ toe pad is mounted at the upper end of the jack post 18S for heightwise adjustment, the heightwise position of the support being controlled by a wedge v1192 between the jack post and lthe adjustable support and arranged to be adjusted by a hand screw 194,.
  • the jack post 188 is mounted for rocking movements on a horizontally extending ⁇ shaft 196 extending laterally of the machine near the front thereof.
  • the jack post has a rearwardly extending arm 198 arranged to be connected to mechanism for rocking the jack during the leveling operation as will be described.
  • the jack post also includes a downwardly extending arm 200 to which is pivotally Vconnected a heel post 2.02.
  • the arm of the support for the gage is connected by a chain or suitable iiexible connection 276 passing around a guide pulley 278 with a lever 280 pivoted to an arm 254 of a lever 256 pivoted at 258 to the jack post l188.
  • a spring 282 connected between the levers 280 and 256 maintains the chain 27 6 taut.
  • the lever 256 has a downwardly extending arm 2.60 carrying a cam roll 262 arranged upon rearward swinging movement of the jack to engage a c am 264 secured to the frame of the machine.
  • Each of the jacks of the machine may assume a position at the ,end of a .Cycle of operations in which it is in a Well forward position as shown in Fig. 2 to enable a hand operation to be performed on the shoe it desired or upper arm of lthe lever 256y and'to the jack'postV 188v holds the upper arm'of the lever in a forward position against an adjustable stop screw 267 carried by the jack post.
  • the weight of the jack is substantially balanced by a Ytorsion spring 288 one end of which engages the jack and the other end of which engages an adjustable block 290 securedY by a screw 292 to a member 294 mounted 4which passes downwardly between the arms of a yoke member 330.
  • the upper end portions of the arms of the yoke are pivoted on a horizontal spindle 332, secured in the rearwardly extending arms of a pair of last pin actuating levers 334, the yoke .lying between these arms.
  • the lower end of the rod 328 has connected to it a tension spring 336 the lower end of which is connected to thev heel post 202. ⁇ 'lhis spring urges the last pin 298 rearwardly into the position shown in vFigj 2.
  • a compression spring 338 Surrounding Vthe lower end of the rod328 is a compression spring 338 the lower end of which rests on a block ⁇ 340radjustablysupportedrby a nut 342 threaded on the lower end Y Fig'.V 2-causing the rod 328 toV be raised and bringing the onvthe shaft V196.
  • the member 294 has a rearwardly extending arm 296 engageable with a lug 286 on the vframe of the machine.
  • the block 2970 and the'member 294 have interengaging teeth to prevent relative slipping Y movement between them.
  • the spring isY so VarrangedV that the jack as it moves forwardly tensions the spring and the extent of this tension is adjusted by varying the heel post 2432.v
  • the lastrpin can swing'forwa'rdly and rearwardly-aboutrth'e'pin 306 and laterally about Y' f the axis of the pinl3tl2.
  • v Slidably mounted in the holder 308 is ⁇ a last supporting pin 310 arranged to Vengage the forward portionpof the heel end of the last.
  • VThe lower end Vof'rthe .last supporting pin 31) rests on Vthe upper 'and of@ pin sie Slidably mounted in the broek 304, the arrangement Vbeing such that the lastrsupporting pin 310 Ycanvmove relatively to the pin 312 when the last pin 298 moves laterally about the axis of the pin 382.
  • the lower end of the last pin has an annular groove 314 engagedrby a ball 316 in the last pin holder 380.
  • the ball is held in the groove 314 by the last supporting pin 319 so that'when the last supporting pin is withdrawn from the holder the last pin 298 may be" with-V drawn from the holder and replaced with a pinV of the' desired size.V
  • the lower end of the pin 312 rests on a face 318 ofthe block supporting post 398.
  • the holder V30() is locked in its laterally tilted position by a plunger 320 the upper end of which has an arcuate toothed sur-V face arranged to engage a correspondinglytoothed surface on the lower face of the holder 306.
  • the lower' end of the plunger 329 is engaged by a Vcam 322 pivoted at 324 on a downwardly extending armof tfrlre'blockV 304.
  • the cam 322' has a rearwardlyfextending arm pivotally 'connected to the upper end of arod 326.
  • Y Pivotally connected to the block384 isV the upper end of ion ⁇ ot a downwardly extending rod 328, the lower port upper end of thecompression spring V338close to the undersurface of the yoke member 330.
  • the yoke member 330 may be swung rearwardlyV from above the spring 338 and held Vin this positionor in the position shown in Fig. 2 by a spring plunger 344 in one of 'the Varmsof the yokeV member engaging one of two recesses in the spindleV 332. 'f
  • the last pin actuating levers 334 are pivoted yon pins 346 carried by upwardlyextending lugs 348 located at opposite sides of the block'supporting post 308.
  • the lugs 348 are carried by a member 350 slidingly mounted on thepost 308.
  • Pivoted to the'forwardly extending arms'of the levers 334 is Vthe front end vportion of an actuating link 352.
  • a rear end portion of this link is pivotally connected to a rearwardly and upwardly extending arm Vof a hand lever'354 pivotally carried by a laterally extending pin 356'secured in theheel post 202.
  • the actuating link'352 and the arm of the hand lever 354 form a toggle which with the hand lever in a raised position, Vas shown in Fig. 2, is broken and is straightened upon movement of the hand lever into the lowered position shown in Fig. 1.
  • the hand lever-354 With the hand lever-354 in its raised position it extends upwardly and forwardly from the pin 356 and is providedat itswforward end with a handle 358 arranged to be gripped bythe operator.
  • ⁇ V ⁇ Pivoted'to the hand lever-354 and extending beneath the handle 358 is a latch lever 360 to which ⁇ is pivoted one Aend of a latch rod 362.
  • VThe'other end-of the latch rod is ⁇ guided by a hole through a stud364pivoted in the-hand lever 354.
  • YThe lower end ofV the-rod 362 is normally heldin a recess in al block 366 secured to the heel-post 202bya tension Vs'pring'368 connected to the latch lever 360 andthe hand lever 354.
  • Y 5 Y Y -Pivoted to the hand ylever V354 is the front end of a link 372 the rear end of which .ispivoted tothe upper end of an arm 374 of a control lever Y376.
  • This control lever is pivotedron a pin 378 in the heel post'2l2 and has a downwardly extending arm the lower endrof'whieh Vis' ⁇ in the form of two arcuate faces 384i, 382 located at different distances from the pivot 378 and joined by an inclined face.
  • a downwardly extending ratchet lever 384 provided at its lower end with rearwardly facing ratchet'teeth Y386. Beneath 'IhewratchetV lever provided with a rearwardly extending arm 390 engageable with a block 392 carried by the sliding member 350, and is so held by a tension spring 394.
  • the last engaging members on the heel post are in positions to receive a last and shoe.
  • the thimble is placed over the last pin and the toe, of the shoe is lifted so that it can. be placed on the toe rest. This causes the last pin to be swung forwardly against the tension of the aforementioned spring 336, lifting the rod 328 and with it the spring 338 until the spring is just below the yoke member 330.
  • the hand lever 354 With the last and shoe supported on the heel pin and on the toe rest, the hand lever 354 is moved down by the operator thus straightening the toggle formed by the hand lever and the link 352 causing the actuating levers 334 to turn about their pivotal connection 346 to the sliding member 350 until the resistance ofered by the shoe through the last pin and rod 328 causes the actuating levers to turn about their pivotal connection to the yoke member 330 thereby raising the sliding member 350. As this member rises, the block 392 thereon raises the arm 390, swinging the ratchet lever 384 in a counterclockwise direction, the teeth 386 moving past the detent 388 which is being held down by the face 380 of the controlling lever 376.
  • the controlling lever 376 which has been moving in a counterclockwise direction as the hand lever has been moved down, presents the face 388 to the detent 388 allowing the detent to engage one of the ratchet teeth to lock the ratchet lever 384 against further counterclockwise movement and thus to lock the sliding -member 350 against further upward movement.
  • the toggle straightens and the actuating levers 334 move about their pivot 346 on the sliding member 356 and through the rod 328 and the spn'ng 338 move the last pin rearwardly to press the toe end of the shoe firmly against the toe rest.
  • the lower end of the rod 326 which controls the cam 322 by which the lastpin holder is locked against lateral tipping movements has at its lower end a slot through which passes a pin 396 carried by an ann 398 pivoted at 401) to the link 352.
  • the arm 398 is connected by a spring 402 to the link 352. This spring normally holds a portion 484 of the arm 398 against a face on the link 352.
  • the last supporting pin 316 is in a raised position.
  • the face 318 upon which the lower end of the pin 312 rests permits this pin and consequently the last supporting pin 310 to be pressed down by the last as the last is placed over the last pin by the operator and the last supporting pin 310 determines the heightwise position of the last on the pin 298.
  • the last pin 298 swings rearwardly and the pin 312 rides up the face 318 to press the last supporting pin 310 against the last rmly to support the heel end portion of the last against the pressure of the leveling roll.
  • the heel post 262 is adjustable toward and away from the jack post 188.
  • the 'postsv are connected by a screw 406 threaded through a block 408 on the jack post and passing through a block 410 on the heel post, the screw carrying collars at opposite sides of the block 419 to prevent lengthwise movement of the screw therethrough.
  • the forward end of the screw carries a handle 412 by which the screw may be turned to move the heel post toward or away from the jack post.
  • stirrup or saddle 414 (Fig. l) to hold the lasted shoe in position on the jack.
  • the yoke member 330 (Fig. 2) is swung rearwardly from above the spring 338 to free the last pin for swinging movement about the pivot 306.
  • the stirrup 414 may be detachably connected to the last pin actuating levers 334 by yielding connections similar to those illustrated and described in Letters Patent of the United States No. 2,073,005, granted March 9, 1937, in the name of Andrew Eppler. Upon removal of the stirrup 414 the yielding connections may be held in inoperative positions by a latch 416 (Fig. 2).
  • the stirrup disclosed herein does not cover the entire shoe bottom as in the aforementioned patent but covers only the shank portion of the shoe.
  • a stirrup of such Width is more effective to hold the shank portion of the shoe bottom against the last than one which covers the forepart and heel seat.
  • the mechanism operates in the manner above described except that the saddle is pulled firmly against the shoe to press the toe end of the shoe against the toe rest instead of relying upon rearward tipping movement of the last pin.
  • the rearwardly extending arm 198 is provided with a hole 418 to receive an end portion of a bolt 420 (Figs. 3 and 4) slidingly mounted in a jack rocking arm 422 which is pivoted on the shaft 196 by which the jack post 188 is carried, the arm extending rearwardly from the shaft at one side of the rearwardly extending arm 198.
  • the bolt 420 has extending upwardly into it a recess 424 which receives the upper ball-shaped end of a stud 426 which passes through an opening in the jack rocking arm 422 and is secured in the upper end of an arm 428 of an actuating lever 438 pivoted on a forwardly and rearwardly extending spindle 432 in the jack rocking arm 422.
  • the bolt 426 is urged in a direction to enter the hole 418 in the arm 198 by a compression spring 434 housed within the arm 422 and engaging the inner end of the bolt 420.
  • the bolt actuating lever 43@ has a laterally extending arm 436 which is normally held against an adjustable screw 438 in the jack rocking arm 422 by the spring 434.
  • Pivoted to the outer end of the laterally extending arm 436 is an upwardly extending bar 440 which passes through an opening in the outer end portion of a trip arm 442.
  • This trip arm is pivoted on a pin 444 carried by an upwardly projecting bracket of the arm 422.
  • a tension spring 446 connects a downwardly extending arm 448 of the trip arm 442 to the bar 440 urging the arm 448 toward a stop pin 450 in the jack rocking arm and the side face of the bar 440 toward a roll 452 on the jack rocking arm 422.
  • Secured to the underside of the trip arm 442 is a block 454 arranged to engage the upper end of a block 456 on the side of the bar 440 during the operation of the machine on a shoe.
  • the arm 422 continues to move upwardly and the bar 446 moves further downwardly whereupon a cam 462 on the side of the bar 440 engages the roll 452 moving the bar about its pivot against the action of the spring 446 to move the Vblock 456 on the barrfrom'beneath the block 454 on the trip arm 442. pushes the bolt 420 outwardly and the bar 440 upwardly into the position shown in Fig. V4.
  • the outer end of the trip arm 442 is raised lby the spring 446 and the block 456 on the bar 444) snaps under the block 454 on the trip arm 442.
  • the rearwardly extending arm 198 has ari-inclined cam face 439 (Fig. 4) which engages the outerV end of the bolt 4253 and pushes the bolt inwardly against the action of the spring 434Vupon movement of the jack rearwardly from its forwardmost position. This action continues until the hole 41S in the arm 198 arrives Vopposite to the bolt whereupon the bolt snaps into the hole thus connecting the jack to the power operating The spring 434 thereupon mechanism.
  • a vertically movable plunger 44l Carried in the rear end of the arm 198 is a vertically movable plunger 44l the lower end'of which engages a lug 443 on the jack rocking arm 422 during this rearward movement of the jack, causing upward movement of the plunger and stressing of a leaf spring 445 secured to the'arm 19S.
  • This spring provides a Yforce to start movement of the jack forwardly at the end of the leveling operation upon withdrawal of ythe bolt 429 in the jack actuating arm from the hole Y 13 in the jack.
  • the bracket 466 which is pivoted Yto a bracket on the machine frame is swung Vout of the way toV an inoperative position so that the trip arm 442 is not operated to withdraw thebolt 425 to release the jack for forward movement beyond the position shown in Fig. l.
  • YThus the bolt-429l remains in engagement with the jack rocking arm at all'times Vuntil the bracket 469 is returned to its operative position.
  • each jack rocking arm 422' has a'forwardly and rearwardly extending arcuate slot 46S in which is adjustably mounted a block 479 pivotally'connected Kto the upper end por- Y .t tion of one of a pair of actuating links 472 there being one link foreach jack.
  • the lower ends of the links Y V472 are pivoted to a jack operating lever 474.
  • a jack for carrying Va shoe forwardly and y rearwardly beneath the leveling tool kto cause the vtool to operate progressively along the bottom of the shoe on the jack, said-jack comprising a toe support,V a heelsupport adjustable relatively tofsaid Vtoe support in accordance with the size ofthe shoe to be operated upon, a gage associated with and Yprojecting above said toe support for engagement with theV toe end of the shoe to assist in properly positioning the shoe lengthwise on theV jack, means mounting said gage for adjustment lengthwise of the toe support,l and automatic means operable prior to engagement of ⁇ the tool with the shoe bottom fortretractng the'gage to avoid interference with the leveling tool.
  • a jack for carrying a shoeY forwardly and rearwardly beneath' the leveling tool Ito cause the tool to operate Vprogressively along the bottom of the shoe on )the jack, said jack comprising a toe support, a heel support adjustable relatively to said toe support in accordance with the size Y 3.
  • a jack for carrying a shoe forwardly and rearwardly beneath the leveling tool to cause the tool to operate progressively along the-bottom of the shoe on the jack, said jack comprising a toe support, a heel support adjustable relatively to said toe support in kaccordance vwith the size Vof the shoe to Vbe operated upon, a gage associated withI ⁇ and projecting above said toe support for engagement Vwith the toe end of the shoe to assist .
  • ⁇ and means mounting VVsaid gage for adjustment lengthwise of the toe4 support.
  • a jack for carrying a shoe forwardly and rearwardly beneath the leveling tool to cause Ithe tool to operate progressivelyVV along the bottom of theY shoe on the jack
  • Ysaid jack comprising a toe support, a heel support adjustable relatively to said toe support in accordance with the size of the shoe to be operated upon, a gageassociated with and projecting above said toe supportV for engagement with the toe end of the shoe to'assist in properly posi- Vtioning the shoe lengthwise on the jack, said Vjack being located ini'a predeterminedV positionV forwardly of the leveling Vtool'prior to commencementrof the leveling operation, power operated 'means forjmoving the jack rearwardly, and means operative at the beginning of said movement of the jack for depressing the gage below the shoe bottom-to avoid interference with the leveling tool.VY
  • a jack for carrying a shoe forwardly and rearwardly beneath the leveling tool to cause 111e tool to operate progressively along the bottom of the shoe on the jack, said jack comprising a toe support and a heel support, said heel support including a last pin arranged to be received by the thimble in the heel end of a last, means mounting said last pin for movement lengthwise and laterally of a shoe thereon, means for moving said last pin toewardly of a shoe thereon to force the toe end of the shoe into firm engagement with the toe support, and means operative upon such movement of the last pin for locking the pin against lateral movement.

Description

w. A. BARKER sHoE 'SUPPORTS Aug. 30, 1960 4 Sheets-Sheet 1 Original' Filed Hay l1. 1954 @MM45/M Aug. 3G, 1960 W. A. BARKER SHOE! SUPPORTS 4 Sheets-Sheet 2 Original Filed May 11, 1954 Aug. 30, 1960 w. A. BARKER 2,950,491
SUPPORTS Original Filed May l1. 1954 4 Sheets-Sheet 5 Aug. 30, 1960 w. A. BARKER SHOE SUPPORTS 4 Sheets-Sheet 4 Original Filed May 11. 1954 SHOE SUPPORTS William A. Barker, Leicester, England, nssgnor to United Shoe Machinery Corporation, Flemington, NJ., `a c orporation of New Jersey Original application May 11, 1954, Ser. No. 429,070,
now Patent No. 2,855,616, dated Oct. 14, 1958. Divided and this application Apr. 2, 1958, Ser. No. 725,865
Claims. V(Cl, 12-'127) This invention relates to machines for operating on shoes, for shaping or leveling the bottoms thereof. More particularly, the invention relates to shoe supports and is illustrated as embodied in a machine `of the type having a leveling tool, a shoe support, power operated -means for etecting relative movements of the shoe support and the leveling tool in opposite .directions lengthwise of .a shoe on a support to cause the tool to .operate progressively along the shoe bottom. Such a machine is illustrated and described in United States Letters Patent No. 2,855,616, granted October 14, 1958, in my name and of which this application is a division.
The shoe support comprises a toe support and a heel support adjustable relatively thereto to accommodate shoes of different sizes. It is desirable that the toe yend of the shoe .occupy a predetermined position relatively to the leveling tool and to insure the proper location of .the shoe thereon and accordingly the proper positioning of the heel support, a gage is associated with the toe support. In accordance with an object of the invention the gage projects above the toe support for engagement by the toe end of the shoe and mechanism is provided for retracting the gage to avoid interference with the leveling tool during movement of the shoe support to carry the shoe beneath the leveling tool.
As a feature of the invention the heel support includes a last pin arranged to be received by the thimble of a last, the last pin being movable about an axis extending transversely of the last thereon so that the toe end of the last may be forced against the toe support and the last pin is also movable laterally about an axis extending lengthwise of the last to insure the proper relationship between the last and the toe support. During jacking of the shoe and movement of the last pin about its iirstmentioned `axis to force the toe end of the shoe against the toe support, the last pin is locked against further lateral movements preparatory to the leveling operation.
The above and other features of the invention includ.- ing novel combinations of parts and details of construction will now be described by reference to the accompanying drawings and pointed out in the claims.
ln the drawings,
l Fig. 1 is a right elevation partly in section of one form of machine embodying lthe invention;
Fig. 2 is a right elevation partly in section illustrating one of the jacks in a forward position to receive a shoe;
Fig. 2a is a front elevation of the last pin mounting mechanism;
Fig. 2b is a side elevation with parts broken away of the last pin locking means;
Fig. 3 is a right elevation partly in section of mechanism by which the jack is actuated to carry the shoe for wardly and rearwardly beneath a leveling roll; and
Fig. 4 is a detail .of .a portion of the jack actuating mechanism, this view .being taken at right angles t0 Fig. 3.
As illustrated herein the machine is provided with a pair of shoe supporting jacks one of which is shown in nited States Patent O g 2,959,491 Patented Aug. 30, 1960 Fig. 2, these jacks being arranged to swing rearwardly and forwardly to carry a shoe thereon beneath a leveling vroll 270. fEach jack comprises a toe support 146, a heel support 148 and a cone support 150.
The toe support A146 comprises a rubber pad 152 having a recess 15.4 shaped to conform to the toe portion of a shoe. The pad 152 is carried by a plate 156 having a pair o f downwardly extending pins 158 fitting into holes in a 'block 169. The pad 152 and the plate 156 may be removed from the block 160 merely by lifting them whereby they are readily replaced if desired by an assembly having a toe pad -with a diiferently shaped recess. The block 160 is carried for Arocking movement whereby the pad accommodates itself to the toe end of the shoe. For this purpose the block is mounted between side walls of an adjustable support 162 between the sides of which are journaled rolls 164 on which rests the curved bottom face of the block 160, so that the block and the toe pad may rock forwardly or rearwardly. The amount of rocking movement is limited by a pin 16h engageable with the sides .of a recess 16S formed in the block 160. Engagement of this pin with the bottom of the recess Vprevents the block from being lifted from the adjustable support 162.
r[he lengthwise position of the shoe 4with reSpeCt to the toe support is controlled by a toe gage 170. This gage Vis carried for heightwise adjustment in a holder 172 which is pivotally mounted at 174 on the rearward end of a .lever u17,6. This lever is pivoted on a pin 178 which carries the rear block supporting roll 164 and has a Aforwardly extending arm 189 which is normally held by a spring 182 against a pin 184 carrying the forward block supporting roll 164. The toe gage holder 172 has a downwardly extending Aarm 185 carrying an adjustable stop screw 1 86 which is normally held in engagement with a jack post 188 by a torsion spring 19t). It Will be understood that by adjusting the stop screw 18.6 the position of the gage lengthwise of the toe support may be readily adjusted. At `an opportune time at the beginuint-,1r of the cycle of operations of the machine the lever 1,76 is moved in a clockwise direction about the pivot 17.8 to rnove the toe gage downwardly to avoid interference with the leveling roll as will be hereinafter eXPlaiued- The adjustable support 1562 for the `toe pad is mounted at the upper end of the jack post 18S for heightwise adjustment, the heightwise position of the support being controlled by a wedge v1192 between the jack post and lthe adjustable support and arranged to be adjusted by a hand screw 194,. The jack post 188 is mounted for rocking movements on a horizontally extending `shaft 196 extending laterally of the machine near the front thereof. The jack post has a rearwardly extending arm 198 arranged to be connected to mechanism for rocking the jack during the leveling operation as will be described. The jack post also includes a downwardly extending arm 200 to which is pivotally Vconnected a heel post 2.02.
For moving the toe gage y17h downat the beginning of the leveling operation the arm of the support for the gage is connected by a chain or suitable iiexible connection 276 passing around a guide pulley 278 with a lever 280 pivoted to an arm 254 of a lever 256 pivoted at 258 to the jack post l188. A spring 282 connected between the levers 280 and 256 maintains the chain 27 6 taut. The lever 256 has a downwardly extending arm 2.60 carrying a cam roll 262 arranged upon rearward swinging movement of the jack to engage a c am 264 secured to the frame of the machine.
Each of the jacks of the machine may assume a position at the ,end of a .Cycle of operations in which it is in a Well forward position as shown in Fig. 2 to enable a hand operation to be performed on the shoe it desired or upper arm of lthe lever 256y and'to the jack'postV 188v holds the upper arm'of the lever in a forward position against an adjustable stop screw 267 carried by the jack post.
If the jack is in its'forwardmost position at the end of a cycle ofY operations itis moved back to the position shown in Fig. 1 by the operator before the machine is started. In this position the toe` end of the sole of the' Y `shoe is located slightly ahead of the'leveling roll 270 and i Vthecam roll-262 (Fig. 2) on the lever 256 is in orV nearly Vin engagement with a Aportion. 272 of the xed cam Y26d. VUponV further movement ofthe jackby the Y power operation of theV machine as described more fully Y' in ,the4 above-noted Patent No. 2,855,616, engagement of the cam Yroll 262Y with'the inclined portion V272 of the carrtY causes the Ylever 256 to move Vin a clockwise direction as viewed'in Fig. 2. This movement of the lever 256/causesythe cone-support 150 to be lockedV in its rm supporting positionas Yfully Set Yforth in said patent and also causes the toe gage 170 to be moved downwardly through the Vaforementioned connections against the action of the spring 182.V
' To assisttheoperator in moving the jack rearwardly from its forwardmost position into the position of Fig. 1, the weight of the jack is substantially balanced by a Ytorsion spring 288 one end of which engages the jack and the other end of which engages an adjustable block 290 securedY by a screw 292 to a member 294 mounted 4which passes downwardly between the arms of a yoke member 330. The upper end portions of the arms of the yoke are pivoted on a horizontal spindle 332, secured in the rearwardly extending arms of a pair of last pin actuating levers 334, the yoke .lying between these arms. The lower end of the rod 328 has connected to it a tension spring 336 the lower end of which is connected to thev heel post 202.` 'lhis spring urges the last pin 298 rearwardly into the position shown in vFigj 2. Surrounding Vthe lower end of the rod328 is a compression spring 338 the lower end of which rests on a block`340radjustablysupportedrby a nut 342 threaded on the lower end Y Fig'.V 2-causing the rod 328 toV be raised and bringing the onvthe shaft V196. The member 294 has a rearwardly extending arm 296 engageable with a lug 286 on the vframe of the machine. The block 2970 and the'member 294 have interengaging teeth to prevent relative slipping Y movement between them. The spring isY so VarrangedV that the jack as it moves forwardly tensions the spring and the extent of this tension is adjusted by varying the heel post 2432.v Thus the lastrpin can swing'forwa'rdly and rearwardly-aboutrth'e'pin 306 and laterally about Y' f the axis of the pinl3tl2. v Slidably mounted in the holder 308 is `a last supporting pin 310 arranged to Vengage the forward portionpof the heel end of the last. VThe lower end Vof'rthe .last supporting pin 31) rests on Vthe upper 'and of@ pin sie Slidably mounted in the broek 304, the arrangement Vbeing such that the lastrsupporting pin 310 Ycanvmove relatively to the pin 312 when the last pin 298 moves laterally about the axis of the pin 382.
The lower end of the last pin has an annular groove 314 engagedrby a ball 316 in the last pin holder 380. The ball is held in the groove 314 by the last supporting pin 319 so that'when the last supporting pin is withdrawn from the holder the last pin 298 may be" with-V drawn from the holder and replaced with a pinV of the' desired size.V The lower end of the pin 312 rests on a face 318 ofthe block supporting post 398. The holder V30() is locked in its laterally tilted position by a plunger 320 the upper end of which has an arcuate toothed sur-V face arranged to engage a correspondinglytoothed surface on the lower face of the holder 306. The lower' end of the plunger 329 is engaged by a Vcam 322 pivoted at 324 on a downwardly extending armof tfrlre'blockV 304. The cam 322'has a rearwardlyfextending arm pivotally 'connected to the upper end of arod 326.
Y Pivotally connected to the block384 isV the upper end of ion `ot a downwardly extending rod 328, the lower port upper end of thecompression spring V338close to the undersurface of the yoke member 330. Y For-aV purpose toVbeA described, the yoke member 330 may be swung rearwardlyV from above the spring 338 and held Vin this positionor in the position shown in Fig. 2 by a spring plunger 344 in one of 'the Varmsof the yokeV member engaging one of two recesses in the spindleV 332. 'f
Y The last pin actuating levers 334 are pivoted yon pins 346 carried by upwardlyextending lugs 348 located at opposite sides of the block'supporting post 308. The lugs 348 are carried by a member 350 slidingly mounted on thepost 308. Pivoted to the'forwardly extending arms'of the levers 334 is Vthe front end vportion of an actuating link 352. A rear end portion of this link is pivotally connected to a rearwardly and upwardly extending arm Vof a hand lever'354 pivotally carried by a laterally extending pin 356'secured in theheel post 202. The actuating link'352 and the arm of the hand lever 354 form a toggle which with the hand lever in a raised position, Vas shown in Fig. 2, is broken and is straightened upon movement of the hand lever into the lowered position shown in Fig. 1. With the hand lever-354 in its raised position it extends upwardly and forwardly from the pin 356 and is providedat itswforward end with a handle 358 arranged to be gripped bythe operator.
`V`Pivoted'to the hand lever-354 and extending beneath the handle 358 is a latch lever 360 to which` is pivoted one Aend of a latch rod 362. VThe'other end-of the latch rod is` guided by a hole through a stud364pivoted in the-hand lever 354. YThe lower end ofV the-rod 362 is normally heldin a recess in al block 366 secured to the heel-post 202bya tension Vs'pring'368 connected to the latch lever 360 andthe hand lever 354. By' moving the Y latch lever 360 upwardly the rod 362 is withdrawn from the recess and upon movement of the hand lever 354 to its lowered position the end of the rod rides olf the blockV and is moved by theV tension spring beneath thefblockV to lock the hand leverin its lowered position.` At `this time a shoulder on the rod engages an arcuate face of the block to limitV the movement of the rod beneath the block. The stud 3764 passes through an arcuate slot 376 in the block 366 and limitsV up and down movement of the hand lever 354. Y 5 Y Y -Pivoted to the hand ylever V354 is the front end of a link 372 the rear end of which .ispivoted tothe upper end of an arm 374 of a control lever Y376. This control lever is pivotedron a pin 378 in the heel post'2l2 and has a downwardly extending arm the lower endrof'whieh Vis'` in the form of two arcuate faces 384i, 382 located at different distances from the pivot 378 and joined by an inclined face.' Also pivoted on the pin-37S VisV a downwardly extending ratchet lever 384 provided at its lower end with rearwardly facing ratchet'teeth Y386. Beneath 'IhewratchetV lever provided with a rearwardly extending arm 390 engageable with a block 392 carried by the sliding member 350, and is so held by a tension spring 394.
With the parts positioned as illustrated in Fig. 2, the last engaging members on the heel post are in positions to receive a last and shoe. In placing the shoe on the jack, the thimble is placed over the last pin and the toe, of the shoe is lifted so that it can. be placed on the toe rest. This causes the last pin to be swung forwardly against the tension of the aforementioned spring 336, lifting the rod 328 and with it the spring 338 until the spring is just below the yoke member 330. With the last and shoe supported on the heel pin and on the toe rest, the hand lever 354 is moved down by the operator thus straightening the toggle formed by the hand lever and the link 352 causing the actuating levers 334 to turn about their pivotal connection 346 to the sliding member 350 until the resistance ofered by the shoe through the last pin and rod 328 causes the actuating levers to turn about their pivotal connection to the yoke member 330 thereby raising the sliding member 350. As this member rises, the block 392 thereon raises the arm 390, swinging the ratchet lever 384 in a counterclockwise direction, the teeth 386 moving past the detent 388 which is being held down by the face 380 of the controlling lever 376. Before the toggle formed by the hand lever and the link 352 is fully straightened, the controlling lever 376 which has been moving in a counterclockwise direction as the hand lever has been moved down, presents the face 388 to the detent 388 allowing the detent to engage one of the ratchet teeth to lock the ratchet lever 384 against further counterclockwise movement and thus to lock the sliding -member 350 against further upward movement. During the the last part of the downward movement of the hand lever 354 after the sliding member'has been locked, the toggle straightens and the actuating levers 334 move about their pivot 346 on the sliding member 356 and through the rod 328 and the spn'ng 338 move the last pin rearwardly to press the toe end of the shoe firmly against the toe rest.
When the hand lever reaches its lowest position the operator releases the latch lever 360 whereupon the latch rod 362 ylocks the hand lever and the parts controlled thereby in this position during the leveling operation At the completion of the leveling operation the operator grips the latch lever 36) to release the latch rod and raises the hand lever to return the parts to their starting positions.
The lower end of the rod 326 which controls the cam 322 by which the lastpin holder is locked against lateral tipping movements has at its lower end a slot through which passes a pin 396 carried by an ann 398 pivoted at 401) to the link 352. The arm 398 is connected by a spring 402 to the link 352. This spring normally holds a portion 484 of the arm 398 against a face on the link 352. Upon downward movement of the hand lever 354, the toggle formed by the hand lever and the link 352 is straightened and during this straightening movement the pin 396 moves into engagement with the lower end of the slot in the rod 326 and then moves the rod downwardly to move the cam member 322 in a clockwise direction moving the plunger 32% upwardly to engage the toothed arcuate face on the last pin holder thus locking the holder against lateral movement. Following this locking of the last pin holder the arm 398 is permitted to move about its pivot against the action of the spring 492 without causing damage to the parts which have been locked against further movement.
With the parts in the positions shown in Fig. 2, the last supporting pin 316 is in a raised position. Upon swinging the last pin 298 forwardly about its pivot 306 as the toe lportion of the last is raised by the operator, the face 318 upon which the lower end of the pin 312 rests permits this pin and consequently the last supporting pin 310 to be pressed down by the last as the last is placed over the last pin by the operator and the last supporting pin 310 determines the heightwise position of the last on the pin 298. Upon downward movement of the hand lever 354 to force the toe end of the lasted shoe against the toe rest 146, the last pin 298 swings rearwardly and the pin 312 rides up the face 318 to press the last supporting pin 310 against the last rmly to support the heel end portion of the last against the pressure of the leveling roll.
For accommodating shoes of different sizes, the heel post 262 is adjustable toward and away from the jack post 188. For this purpose, the 'postsv are connected by a screw 406 threaded through a block 408 on the jack post and passing through a block 410 on the heel post, the screw carrying collars at opposite sides of the block 419 to prevent lengthwise movement of the screw therethrough. The forward end of the screw carries a handle 412 by which the screw may be turned to move the heel post toward or away from the jack post.
It may be desirable to employ a stirrup or saddle 414 (Fig. l) to hold the lasted shoe in position on the jack. In such case the yoke member 330 (Fig. 2) is swung rearwardly from above the spring 338 to free the last pin for swinging movement about the pivot 306. The stirrup 414 may be detachably connected to the last pin actuating levers 334 by yielding connections similar to those illustrated and described in Letters Patent of the United States No. 2,073,005, granted March 9, 1937, in the name of Andrew Eppler. Upon removal of the stirrup 414 the yielding connections may be held in inoperative positions by a latch 416 (Fig. 2). The stirrup disclosed herein does not cover the entire shoe bottom as in the aforementioned patent but covers only the shank portion of the shoe. A stirrup of such Width is more effective to hold the shank portion of the shoe bottom against the last than one which covers the forepart and heel seat. The mechanism operates in the manner above described except that the saddle is pulled firmly against the shoe to press the toe end of the shoe against the toe rest instead of relying upon rearward tipping movement of the last pin.
For connecting the jack to power operated mechanism by which forward and rearward movements of the jack are effected during the leveling operation, the rearwardly extending arm 198 is provided with a hole 418 to receive an end portion of a bolt 420 (Figs. 3 and 4) slidingly mounted in a jack rocking arm 422 which is pivoted on the shaft 196 by which the jack post 188 is carried, the arm extending rearwardly from the shaft at one side of the rearwardly extending arm 198. The bolt 420 has extending upwardly into it a recess 424 which receives the upper ball-shaped end of a stud 426 which passes through an opening in the jack rocking arm 422 and is secured in the upper end of an arm 428 of an actuating lever 438 pivoted on a forwardly and rearwardly extending spindle 432 in the jack rocking arm 422. The bolt 426 is urged in a direction to enter the hole 418 in the arm 198 by a compression spring 434 housed within the arm 422 and engaging the inner end of the bolt 420. The bolt actuating lever 43@ has a laterally extending arm 436 which is normally held against an adjustable screw 438 in the jack rocking arm 422 by the spring 434. Pivoted to the outer end of the laterally extending arm 436 is an upwardly extending bar 440 which passes through an opening in the outer end portion of a trip arm 442. This trip arm is pivoted on a pin 444 carried by an upwardly projecting bracket of the arm 422. A tension spring 446 connects a downwardly extending arm 448 of the trip arm 442 to the bar 440 urging the arm 448 toward a stop pin 450 in the jack rocking arm and the side face of the bar 440 toward a roll 452 on the jack rocking arm 422. Secured to the underside of the trip arm 442 is a block 454 arranged to engage the upper end of a block 456 on the side of the bar 440 during the operation of the machine on a shoe.
'Upon forward movement of the jack at the conclusion of'a leveling operation toward its loading position the rearwardly extending arm V198v and Ythe jack rocking arm 4,22 are moving Yupwardlywhereupon the trip arm 442 moves into engagement with a screw 458 carried by a bracket 465m the upper portion of the machine frame so that the trip arm moves `downwardly about its pivot 444. During Ythis movement therblock 454 engages the upper end of the block 456 on the bar 440 moving the bar downwardly and rocking the bolt actuating lever 430 in a clockwise direction, as seen in Fig.r4, to withdraw riedby-a cam shaft 130. 'This shaft carries a gear,4 981 which isY in turn controlledfby Ithe conjoint.` action ofV the eccentric 478 and the cam roll 492 A riding in the groove 494 of the cam 49,6.
g Provision is made for adjusting the block'470 along the slot 468 for Vvarying the jack motionV automatically according to the size setting of thejack aswell as Y manually independent of the sizeadjustment. of theV jack the bolt 420. from the arm'198 of the jack post. As soon as the bolt is withdrawn from the jack post theV jackA moves forwardly by gravity to its forwardmost position until a leather-covered lug 284 (Fig. 2)k on the jack post 188 engages the lugs-286 -on the machine frame. The arm 422 continues to move upwardly and the bar 446 moves further downwardly whereupon a cam 462 on the side of the bar 440 engages the roll 452 moving the bar about its pivot against the action of the spring 446 to move the Vblock 456 on the barrfrom'beneath the block 454 on the trip arm 442. pushes the bolt 420 outwardly and the bar 440 upwardly into the position shown in Fig. V4. Upon downward movement of the jack rocking arm 422 at the beginning of the next cycle of operations of the machine the outer end of the trip arm 442 is raised lby the spring 446 and the block 456 on the bar 444) snaps under the block 454 on the trip arm 442.
The rearwardly extending arm 198 has ari-inclined cam face 439 (Fig. 4) which engages the outerV end of the bolt 4253 and pushes the bolt inwardly against the action of the spring 434Vupon movement of the jack rearwardly from its forwardmost position. This action continues until the hole 41S in the arm 198 arrives Vopposite to the bolt whereupon the bolt snaps into the hole thus connecting the jack to the power operating The spring 434 thereupon mechanism. Carried in the rear end of the arm 198 is a vertically movable plunger 44l the lower end'of which engages a lug 443 on the jack rocking arm 422 during this rearward movement of the jack, causing upward movement of the plunger and stressing of a leaf spring 445 secured to the'arm 19S. This spring provides a Yforce to start movement of the jack forwardly at the end of the leveling operation upon withdrawal of ythe bolt 429 in the jack actuating arm from the hole Y 13 in the jack. Y
Should'ritk be desired to arrest the forward motion of the jack in kthe position Vshown`in Fig. 2, the bracket 466, which is pivoted Yto a bracket on the machine frame is swung Vout of the way toV an inoperative position so that the trip arm 442 is not operated to withdraw thebolt 425 to release the jack for forward movement beyond the position shown in Fig. l. YThus the bolt-429l remains in engagement with the jack rocking arm at all'times Vuntil the bracket 469 is returned to its operative position. `For rocking the jacks in 'the leveling operation each jack rocking arm 422'has a'forwardly and rearwardly extending arcuate slot 46S in which is adjustably mounted a block 479 pivotally'connected Kto the upper end por- Y .t tion of one of a pair of actuating links 472 there being one link foreach jack. The lower ends of the links Y V472 are pivoted to a jack operating lever 474. The
- on a drive shaft 16, and consequently rotates continuously.during7each cycle of operation ofthe machine.V Y The rear end of the jack actuating level-"474 is'pivoted tothe front end V'portion of a guidinglink 48S which is pivoted at its rear end to a bracket 490 on the machine 1 frame.' The jack actuating lever 474 carries a cam roll .492 whch'rides in a camrgroove-494 in a cam 496 car-V ina manner fully described inthe above-noted Patent- No. 2,855,616. Having thus described my invention,` what I claim as new and desire to secure by Letters Patent-of the United States is: Y Y v I l. In aY leveling-machine having arleveling tool, a jack for carrying Va shoe forwardly and y rearwardly beneath the leveling tool kto cause the vtool to operate progressively along the bottom of the shoe on the jack, said-jack comprising a toe support,V a heelsupport adjustable relatively tofsaid Vtoe support in accordance with the size ofthe shoe to be operated upon, a gage associated with and Yprojecting above said toe support for engagement with theV toe end of the shoe to assist in properly positioning the shoe lengthwise on theV jack, means mounting said gage for adjustment lengthwise of the toe support,l and automatic means operable prior to engagement of` the tool with the shoe bottom fortretractng the'gage to avoid interference with the leveling tool. Y
2. In a leveling machine having a leveling tool, a jack for carrying a shoeY forwardly and rearwardly beneath' the leveling tool Ito cause the tool to operate Vprogressively along the bottom of the shoe on )the jack, said jack comprising a toe support, a heel support adjustable relatively to said toe support in accordance with the size Y 3. In a levelingY machine having a leveling tool, a jack for carrying a shoe forwardly and rearwardly beneath the leveling tool to cause the tool to operate progressively along the-bottom of the shoe on the jack, said jack comprising a toe support, a heel support adjustable relatively to said toe support in kaccordance vwith the size Vof the shoe to Vbe operated upon, a gage associated withI `and projecting above said toe support for engagement Vwith the toe end of the shoe to assist .in properly positioning the shoe lengthwise onV the jack, means operative in response to movement of the jack to carry the shoe beneath lthe leveling tool for retracting the gage to avoid interference with the leveling tool, `and means mounting VVsaid gage for adjustment lengthwise of the toe4 support.
4. In a leveling machine having a leveling tool, a jack for carrying a shoe forwardly and rearwardly beneath the leveling tool to cause Ithe tool to operate progressivelyVV along the bottom of theY shoe on the jack, Ysaid jack comprising a toe support, a heel support adjustable relatively to said toe support in accordance with the size of the shoe to be operated upon, a gageassociated with and projecting above said toe supportV for engagement with the toe end of the shoe to'assist in properly posi- Vtioning the shoe lengthwise on the jack, said Vjack being located ini'a predeterminedV positionV forwardly of the leveling Vtool'prior to commencementrof the leveling operation, power operated 'means forjmoving the jack rearwardly, and means operative at the beginning of said movement of the jack for depressing the gage below the shoe bottom-to avoid interference with the leveling tool.VY
v t f im 5. In a leveling machine having a leveling tool, a jack for carrying a shoe forwardly and rearwardly beneath the leveling tool to cause 111e tool to operate progressively along the bottom of the shoe on the jack, said jack comprising a toe support and a heel support, said heel support including a last pin arranged to be received by the thimble in the heel end of a last, means mounting said last pin for movement lengthwise and laterally of a shoe thereon, means for moving said last pin toewardly of a shoe thereon to force the toe end of the shoe into firm engagement with the toe support, and means operative upon such movement of the last pin for locking the pin against lateral movement.
References Cited in the le of this patent UNITED STATES PATENTS 2,263,488 Cross Nov. 18, 1941
US725865A 1954-05-11 1958-04-02 Shoe supports Expired - Lifetime US2950491A (en)

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US429070A US2855616A (en) 1953-08-31 1954-05-11 Leveling machines
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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2263488A (en) * 1940-06-28 1941-11-18 United Shoe Machinery Corp Shoe supporting jack

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2263488A (en) * 1940-06-28 1941-11-18 United Shoe Machinery Corp Shoe supporting jack

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