US2604645A - Lasting machine - Google Patents

Lasting machine Download PDF

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Publication number
US2604645A
US2604645A US95598A US9559849A US2604645A US 2604645 A US2604645 A US 2604645A US 95598 A US95598 A US 95598A US 9559849 A US9559849 A US 9559849A US 2604645 A US2604645 A US 2604645A
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Prior art keywords
gripper
shoe
lasting
overlaying
overlaying member
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US95598A
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Ernest L Butler
Jr Andrew Eppler
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United Shoe Machinery Corp
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United Shoe Machinery Corp
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Priority to US95598A priority Critical patent/US2604645A/en
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    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00Lasting machines
    • A43D21/16Lasting machines with lasting pincers and toe- or heel-embracing wipers
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00Lasting machines
    • A43D21/12Lasting machines with lasting clamps, shoe-shaped clamps, pincers, wipers, stretching straps or the like for forming the toe or heel parts of the last
    • A43D21/125Lasting machines with lasting clamps, shoe-shaped clamps, pincers, wipers, stretching straps or the like for forming the toe or heel parts of the last with a plurality of pincers
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00Lasting machines
    • A43D21/18Lasting machines with lasting pincers and straight-acting wipers, also for forming the shank portions of shoes

Definitions

  • This invention relates to a machine for lasting different portions of-the upper of ashoe, suc-j cess'ively, in different locations along v thehedge of the shoe bottom; in which thelasting margin of the upper is secured inlasted position, in each location, by means of- -an adhesive and .is herein illustrated as embodied ina machine-of the type disclosed in United States-Letters Patent No. 1,796,451, issued on Marchlfl, 1931, in the name of George Goddu.- It will be understood,:however, that in-certain aspects the invention is not limited either-to use for lasting with an adhesive'or to embodiment in .a machine organization of ;the exact construction disclosed in the aforementioned'patent.
  • thegripper seizes-the lasting marginof the: upper closely Ladjacent to the locationoawhere it-hasbfeenxsecured to 'th'e bottom of the, shoe; therewill be a tendency for the gripper, when it" moves in a direction to tension the upper, to lift up that pornon of the upper which has just been securedto the shoe bottom.
  • the staple may be'pulled'sout or, if secured by an adhesive, the adhesivebond may the :broken. Accordingly, inthewuse ofzlasting-machines of the 25 "Claims.-
  • a lastingfmaehina having a gripper'jand anpverlaying m mben operable in time relation, thecombination-with mechanism for, operating jfihe glippiei 130889528;
  • jthe arrangement is a such that the gripper may be selectively oscillated either direct-ion, lengthwise 'OfTihQfSh-bfi" and role-- tively to the overlaying member; so; that a shoe may be lasted 'in either direction; from toe-'to-heel or heel to toe,,and, in, accordancewith-another ieature of the invention, the gripper-opeiatingmechanism andfth'e gripper-oscillating mesh-a nism .may-.
  • the .glipper-operatmg 'me'chanisln is also arrangedjto. move the gripper downwardly and laterallyof' the shoe',',injtime relationto the action of the gripper-oscillatingmechanism! Be cause ,of the.,movements which are impartedto thegripper by the actions of thegrippenoperate;
  • the jaw of the gripper which engages the inner surface of the upper is first advanced toward the upper in a location where the upper extends away from the shoe bottom and is then moved in a direction lengthwise of the shoe and 1 toward a positioon substantially in line with the overlaying member, before the gripper is operated to seize and tension this other portion of the upper.
  • the gripper jaw is readily inserted beneath the lasting margin of the upper closely adjacent to a location where thelasting margin has been secured to the shoe bottom.
  • this feeding means comprises a feed wheel wise of the shoe.
  • Another object of thisinvention is to provide a noveloverlaying member and improved means for operating the overlaying member, in time relation to the updraw and overdrawactions of the gripper.
  • the overlaying member is arranged to move along a path that is inclined downwardly toward the bottom of a shoe presented-to'the machine and is provided with an operating surface that isv disposed at an angle to its path of movement and substantially parallel to the bottom of the shoe, while the operating mechanism is arranged to cause the overlaying member first to move toward the shoe bottom, during a portion of the gripper, then to pause while the updrawing action is completed and finally to continue'itsmovement during the overdraw so as to lay the lasting margin of the upper in over, against, the bottom of the shoe just as the upper difierent portions of the upper to the actions of the gripper and the over-,
  • the gripper With this novel overlaying member construction, the lasting margin of the upper is laid flatly against the bottom of the shoe while the improved action of the means for operating the overlaying member not only insures that the updraw action of the gripper will be completed before the overlaying member engages the upper but also makes certain that the overlaying member will engage, and follow, the upper during the overdrawing action of the gripper so as to be in a position to press the lasting margain against the shoe bottom at the instant it is released by the gripper.
  • the overlaying member is provided with a hammer which is adapted to strike the operating surface of the overlaying member and I is so mounted as to be self leveling to strike the lasting margin squarely and evenly, regardless of lengthwise and widthwise curvatures of the shoe bottom.
  • the feeding means is so constructed and arranged as to impart feeding movements to the shoe of .a linear extent that is less'than the width of the areas to which pressure is applied.
  • Fig. 1 is a perspective view of a lasting machine embodying the'features of this invention
  • Fig. 2 is a view similar to that of Fig. 1 taken from the opposite side of the machine;
  • Fig. 3 is a view in side elevation showing the operating elements of the machinewith certain parts broken away and others shown in section;
  • Fig. 4 is a view in section, substantially on line IV-IV of Fig. 3 and looking in the direction of the arrows, of certain of the operating elements;
  • Fig. 5 is a view of one of the operating elements of the machine as viewed from below and partly broken away; 1
  • Fig. 6 is a view in side elevation of operating mechanisms forming part of the machine shown in Figs. 1 and 2;
  • Fig 7 is view in section, substantially on line VII-VII of Fig. 6 and looking in thedirection of the arrows, of a portion of one of the operating mechanisms shown in Fig. 6;
  • v v V I Fig. 8 isa View in side elevation of a part of the other operating mechanism shown in Fig. 6;
  • Fig. 9 is a view in side elevation of the operating elementsof the machine similar to that of Fig. 3 but at a smaller scale and illustrating other; operatingmechanisrns;
  • I Fig. 10 is a view ofan operating mechanism forming part of the machine shown in Figs. 1 and 2, with certain parts in vertical section; a
  • Fig. 12' is' a view in section-substantially-* orr shown in'Fig. 6; as-*viewed from the'-right-hand side of this figure;
  • Fig. 15 is a-viewin-section-of another d'eta-il ofbonstruction of the-machine; substantially-on line-XV-XV in Fig. Q-ancl'lookingin the direc'-- tion" of the arrows;
  • Fig. 16 is aperspective .view illustrating theaction of one-'of-the-op'erating element's of th'e machine
  • Figs; 17, 18 and 19 areviewsin side-elevationshowingdifierent positions assumed by certain of the operating elements-of the machine during an operating cycle
  • Fig. 20 is a timing chart.
  • FIG. 1 the features of this inven-' tion are illustrated as embodied in amachine ofthe same general construction asthat shown-in the aforementioned patent.
  • Thismachine hasa gripper, comprising. jaws 30, 32, an overlying;
  • the" gripper is of thesame constructionas that of.
  • part updrawing lever-50 mounted on the head 40, b-y means ofa pivot pin 52, Fig. l3,- and. its. body portion 54 is slidablymounted in a member 56 that is threaded to receive a screw 58.
  • Fig. 14 for. a purpose to be explained below.
  • the screw: 58 is .rotatably supported, at its-opposite ends,in a bracket member 60'. and .an extension 62v secured thereto, and this bracket member is formed integrally with an overdraw rod-64, which cor.- responds to the overdraw rod 2H] of the patented machine and is connectedto atwo-piece overdr'aw lever 5'6iby means of a pin 68 andblock T0,".Fig.
  • the gripper ofthe herein illustrated. machine is'operated in the same manner for seizing, up,- drawing, overdrawing and releasing different. portions of the upper of a shoe as thegripper. disclosed and described in the aforementioned patent, the. gripper-closing rod.112-,' updraw lever 5'02 overdr'aw rod'6'4 'andgrippereopening. spring ll-being under the controlof'various operating camsgnot shown, carried by the-main shaft 44 Also; the updraw action and overdraw: action 1 imparted to'the-gripperjaws 30, 32.
  • the updraw lever '50 and the overdrawrod -64 may be varied, respectively, by a hand nut-16 and a handlever 'lll inth'e'same-manner and .by mechanisms similar to those disclosed in the aforementioned patent to which reference may be made for a detailed description of'these-various gripper-operating' mechanisms which form-no part of the present invention.
  • this screw is adapted; when" rotated, to impart additional movements tothe gripper jaws 30, 32,- for the purpose of certain features of-this invention.
  • jaws 30- ⁇ 32 are first opened, next moved-down wardly to position the'inner jaw-30 close to the bottom of the shoe, and then the gripperis moved laterally of the shoe to shift the inner jaw 30-; outwardly to the edge of the shoe'bottom and into a position to engage the inside'surface of theupper material when the jaws are again closed.
  • the gripper jaws 30 32 are'oscillated in adirectionlengthwise of the shoe; first away fromand'then toward a position in line: with the overlaying. member; in the following manner.
  • the screw 58 has. formedthereona-pinion 89 which meshes; with a rack 82 that: is-- slidably mounted: in the. bracket member 60- and-connected; by means of a link 84, to an arm 86; Fig. 6.
  • This arm is pivoted'on. a stud 88-,-carried by an upstanding portion 99: of the-head 40: and has two oppositely extending ears 92,- 94, to whi r Illl, that is mounted on a stud.
  • I I2 carried by a downwardly extendingportion. H4 on the head 40.
  • a pin H6 extends through the elongated slots in the ends. of the links 96 and 98 and this pin'is mounted in the bifurcated end. of the arm I03.
  • the arm llil of. the bell-crank lever carries a cam roll [39,. which. engages a cam III on the main shaft 44 (Fig. .9) and this cam is so shaped that the bell-cranklever is rocked, once for each revolution of the mainshaft, first down to the position shown in Fig.6 and then up in thedirection of the arrow.
  • a cam roll [39,. which. engages a cam III on the main shaft 44 (Fig. .9) and this cam is so shaped that the bell-cranklever is rocked, once for each revolution of the mainshaft, first down to the position shown in Fig.6 and then up in thedirection of the arrow.
  • each of these rods passes through an opening I24 formed in a block I26 that is carried by a hand lever I28, Fig. 6.
  • a hand lever I28 Fig. 6.
  • the lower end of the rearmost rod I22 is substantially hidden behind the lower end of the front rod I20, only the lower 'end of the latter is shown in the drawings.
  • a tension spring I38 is stretched between the block I26 and a lip I40, supported on stud I I2, and the arrangement is such that the spring I33 acts as a toggle spring for holding the hand lever in either position to which it may be shifted, either to elevate or to lower the links 96 and 98, through the actions of springs I34, I35.
  • the gripper jaws 30, 32 may be selectively oscillated in either direction lengthwise of the shoe first away from and then toward a position in line with the overlaying member.
  • This oscillation of the gripper jaws 30, 32 in a direction lengthwise of the shoe is effected in a definite time relation to the operation of the gripper jaws to seize, updraw, overdraw and release a portion of the lasting margin of a shoe as will be more particularly explained below.
  • the overlaying member 34 is mounted for sliding movement on a guide block I50 which is se' cured to an arm I52, formed integrally with a trunnion shaft I54, Figs. 3 and 15.
  • This trunnion shaft is journaled in a portion of the head 40 and has a reduced end portion I56 to which there is keyed an arm I58.
  • This arm carries two adjusting screws I53, I92 which are adapted to bear against a stud I64, screwed to the head 40. By manipulating these screws, the guide block I may be tilted, relatively to the head 40, so as to vary the angularity of the path of movement of the overlaying member with relation to the bottom of a shoe presented to the machine.
  • the overlaying member 34 is reciprocated on the guide block I50 and along a path inclined downwardly toward the bottom of the shoe, in time relation to the action of the gripper by means of a cam I'IO on the main shaft 44 which engages a cam roll I12, carried by the overlaying member, see Fig. 9.
  • the path of this cam is shaped with two risers I'Il, I13, so that th overlaying member is moved toward the shoe bottom in two distinct steps.
  • the overlaying member For laying the lasting margin of the tensioned upper in over, and for pressing it against, the bottom of a shoe, the overlaying member is provided with an operating surface I80, having a nose I8I. which is disposed at an angle to the path of movement of the overlaying member and in a plane that is substantially parallel to the bottom of a shoe presented to the machine, Figs. 3, 9, 17, 18 and 19. As shown in Fig. 19, when the overlaying member 34 is moved along its inclined path by the cam I10, the operating surface I will lay the lasting margin of the upper over, and press it flatly against, the bottom of the shoe.
  • a hammer I82 which is arranged to project through an opening I85 in the operating surface I80 and to strike the lasting margin of the upper a sharp blow after the lasting margin has been laid in over, and pressed against the shoe bottom, by the operating surface I39.
  • This hammer is carried at the lower end of a plunger I84 which is slidably mounted in the front end of the overlaying member 34, Figs. 3 and 9. At its upper end, this plunger is connected to an operating link I86 which is pivoted to a bell-crank lever I88, carrying a roll I92 that is held against a cam I92 by means of a spring I94, see Fig. 9.
  • the cam I92 is mounted on the main shaft 44 and is so shaped that the plunger I84 will be projected downwardly by the spring'l94, to cause the hammer I82 to strike the lasting margin a sharp blow, at the termination of the outward and downward movement of the overlaying member by the cam I19.
  • An adjustable stop I93 is arranged so as to engage a bumper block I95, carried by the overlaying member, for limiting downward movement of the plunger I04.
  • the hammer I82 is provided with an operating face having a plurality of projections I98, Fig. 5, so as to concentrate its action over a plurality of closely spaced points on the lasting margin and is mounted so as to be self leveling in the following manner.
  • the lower end of the plunger I84 has a spherical recess I and the hammer is spherically shaped at 200 so as to be held in this recess by means of a spring 202, Figs. 3 and 19.
  • the shoe-bottom rest of the machine comprises a feed wheel 35 which is operated to move the shoe along in time relation to the actions of the gripper and overlaying member in the following manner (Figs. 1, 2, 3, 9 and 10).
  • the feed wheel is formed integrally on the end of a shaft 298 that is journaled in the lower part of a forwardly and downwardly extending bracket 300 forming part of the head 40 (Figs. 3 and 1G)
  • a bevel gear 392 On the shaft 298 is a bevel gear 392 which meshes with a bevel gear 394 carried by a shaft 353 that extends upwardly in the bracket 300.
  • the shaft 306 is provided with a portion 303 of enlarged diameter which is received in a counterbore 389, formed in the bracket, and beyond the enlarged portion 308 there is pinned to the shaft 398 an elongated hub 3I0 which comprises part of a double-faced ratchet wheel 3I2, Fig. 10.
  • a cage 3I5 c0m pris 111g end plates BIB, 320 and a cylindrical intermedlate member 322, secured together by means of screws 324, Fig. 10.
  • the end plate 320 has extending therefrom a shaft 326 which is jo I racks ;-,nru eans-ofv a plate 358.
  • theaahm 356 is an extension carrying aroll 360 that engages a earn 362 carried by the main shaft -naledin the bracket. 300 and-bored .to .receive ntherend 31,4. of the-shaft 306.
  • Theracks 342 and 344 are joined together for ;s imultaneous reciprocation in the followingman- --ner. (Sonnected ,to the inner ends of these two is a link .350,'Figs. 2, 9 and 15, andthis link is connectedto a block 352 that is adjustably .secured, by-mea-ns of a clamping screw 354, in
  • a grooved collar 366 wsecured to the u-nper endof-the shaft 326, is engaged. by rollers 368-carried byone end of aplever 7 310, that ispivotally mounted on a portion of the ...bracket36ll,- -Figs. 2 and 10.
  • This spring acts as a toggle spring and tends to hold 'the lever 316, and with it the shaft 326, in either one of two-positions, namely, in the positions shown inFigh '10 in which the pinion 340 ,is in ..mesh.with the rack 3.42 andthe fingers 330 ,drive ,the ratchet wheel 3
  • the rod 314 is connected .to one arm 3900f a bell-crank lever the other. arm
  • gripper jaws alwaystravel in a direction;; epposite to that inwhichthe-shoe is being fed-along by the feed wheel.
  • mechanism for freeing the-feed wheel 36 so that it can-rotate idly.
  • This mechanism comprises ashaft-4ll0 having a flattened sideAUZthat-is in en agementwith the lower face of the enlargement :308- and-the shaft 306, F g-10.
  • the shaft ma berotated to cause-.the flattened .side 462. ,to lift theshaft .366, -bywengagement .Wi th the .enlargedportion- 308,- :thus disengaging-the gears 304, and.302 andfreeing the feed wheel :36.
  • Theedge guideroll38 is rotatablysupported ,on the outer end of asupporting-,member-420 that is..pivotally--mounted on a stud .422; F'g; 3.
  • the member. 420. extends .rearw-ardly, beyond the stud 422: and is provided p with anarcuateslot428 through which there extends a bindingscrew .430,that;;is threadedinto the block: .424.
  • the operation of the machine will be outlined in the manner in which it occurs when the hand lever I28 is moved to the position jmove to. the right and then return to their midposition in alinement with the overlaying mem- In Fig. 16, the direction in which the wheel, is indicated by .a solid arrow and the movements of the gripper jaws are diagrammaticallyillustrated by means of a relatively heavy arrowed line a, b, c, d, e, and 1, that corresponds roughly to the path of movement of the inner jaw 30.
  • the arrowed line a, c, d, and 1 represents the path of movement of the inner jaw 38 in a horizontal plane
  • the arrows showing the direction of movement of the gripper jaws are identified with the letters e and f corresponding to similar portions of the arrowed line a to f.
  • the actions of the gripper jaws 39, 32 to seize, updraw, overdraw and release different portions of the upper materials of a shoe are the same as those of the gripper of the machine disclosed in the above-mentioned patent.
  • the overlaying member 34 also operates in timed relation to the tensioning action of the gripper substantially in t the same manner as in the patented machine.
  • the gripper jaws are also oscillated in a direction lengthwise of the shoe, first away from and then toward a position in line with the overlaying member and the shoe is fed along, intermittently,
  • a complete operating cycle will be described beginning at about 240 on the timing chart (Fig. 20)
  • the gripper jaws 3D, 32 have just tensioned and released a portion of the upper materials U and L and the lasting 1 margin has been secured in lasted position to the inner sole I, by means of an adhesive coating previously applied to the inside surface of the upper materials and/or the insole, as a result of the pressing actions of the overlaying member 34' and the hammer [82, see Fig. 19.
  • the hammer l82 has been elevated to a slight extent (see hammer cam on timing chart) in order not to interfere with the feeding of the shoe which begins immediately, the feed wheel 36 being rotated in a direction to move the shoe to the left in Fig. 16 (see feed cam on timing chart).
  • the overlaying member 34' is withdrawn away from the shoe bottom and the gripper is swung to the right by the screw 58, so as to cause the inner jaw 30 to move along a path indicated by the line a (pincer side throw cam).
  • the'gripper first descends and causes the jaw 30 to move along the line bitoward the inner sole I (updraw cam) and then moves outwardly to cause the jaw 30 to follow the' path 0 (overdraw cam). Now the gripper is returned to its mid-position in alinement with the overlaying member 34, see liner-41: in Fig. 4, so that the jaw 30 followsthe path at (pincer side throw cam).
  • the lasting margin of the upper materials curves upwardly and outwardly, from the location where it has been secured to the inner sole, indicated by the dotted line representation h of the area acted on by the hammer in Figs, 4 and 16, to a position where it is nearly vertical tothe inner sole.
  • this jaw By moving the gripper jawsin directions lengthwise and heightwise of the shoe and causing the inner jaw 35 to follow substantially the paths a, b, c, and d, this jaw is easily inserted beneath the lasting margin of the upper materials, in a location closely adjacent to the place where the upper has been secured to the inner sole, sinceit first moves toward the lasting margin in a location where the margin is merely vertical and then moves in'a direction lengthwise of the shoe'beneath the margin.
  • the cams are so shaped that the path a to d is only approximated and movements along the pathsb, c, d occur simultaneously and more or less along the arrowed line b, c, d, Fig. 16.
  • the inner jaw is inserted beneath the curved portion of the'lasting margin before the gripper has returned to its mid-position and prior to operation of the gripper to seize, tension and release another portion of the upper materials.
  • the jaws 38, 32 may be closed to seize the upper materials, as shown in Fig. 17.
  • the gripper jaws are moved upwardly substantially along the path e to exert an updrawing stress on the upper U and lining L for tensioning these materials over the last A.
  • the inner jaw 30 is provided with a smooth operating face 503, for engaging the lining L, while the outer jaw 32 has a toothed operating surface 502 for engaging the upper U, and the jaws are closed on the upper materials with a relatively light pressure.
  • jaw 32 being sufficient to stretch the upper snugly over the last A.
  • the various parts assume the positions shown in Fig. 18.
  • the jaws are moved along the path f to draw the lasting margin inwardly over the inner sole and, at the conclusion of this overdraw movement, the jaws are opened to release the upper materials which are immediately laid in over, and pressed against, the inner sole by the actions of the operating surface Hill on the overlaying member 34 and the hammer I82.
  • the overlaying member 34 is moved toward the bottom of the shoe along an inclined path, see arrows Figs. 1'? and 18, and in axthe movement. of: the: 'overlayingrmember: occurs during the. beginning of the upward movement ofthe-jaws 30, 32, in the direction of the arrow .fe; Fig. 17, and thearrangementis such that --movement :or the-overlayingmemberv is-;.arr.ested I and the overlaying member heldstationary while the upward. movement of "the j aws .is completed, the. overlaying member stopping withjitsnose IBI i 'justi touching the tension :lasting ,marginflof the upper materials .as shown in Fig. '18. Now,- as
  • the jaws are moved to the left, in the direction of the arrow f, to draw'the lastingmargin of: the tensionedupper materials inwardly wornr the inner sole I,- the second :step of the-movement of the overlaying member occurs so that theover laying member follows the .inwardmovement :lof the lasting margin and finally lays the lasting 1' marginin over, and pressesitflatly againstgthe .sinner sole I, Fig. 19; with an easyxand .smooth raction which :does not'jar the shoe, just ,af-terthe 'J'aws'are opened -(approx.;195 on'the, timin .rchart, Fig. 20).
  • the hammerv I82 isinow operatedto strike the lastingmargin of ftheupper materials a sharp blow, to cause :the .lasting margin to. be securely bonded to the inner sole by. the previously applied adhesive, at about .210" on the timing chart.
  • the cycle. is completed in the-next:30 during'whichthe hammer is elevated prior to the withdrawal of the overlaying member which occurs at the beg n g'ofthenext cycle .as explained. above.
  • the range of feeding increaments is'from' /8" to "-.and the block .354 is mshownras so positioned as to. provide for a feed of. approximately 4
  • the gripper. oscillating mechanism is arrangedto swingthe jaws-0, 32 away .from their mid-position a. distance. thatis somewhat.
  • In'lasting'a shoe is a usual practice for the -operator to start 'the lasting operation at the breast line, on one side ofthe shoe, and then to proceed to the tip line. After'one side of the shoe has sheen lasted; the-shoe is turned around to bring its other side tothe'machine and the lasting :operationrepeated; again beginning at the breast line and proceeding to the tip line.
  • treadle rods so and 4B are arranged to be operated by two treadles, not shown, in such a manner that both rods may be moved downwardly to effect operation of the gripper, feed wheel and overlaying member, or the rod 4-5 only may be moved downwardly to efiect operation of the overlaying member and feed wheel, while the gripper remains idle.
  • the clutch mechanisms are adapted to present the main shaft to a stop with the gripper jaws opened and the overlaying member withdrawn,
  • the feed wheel 36 may be disconnected from its driving means should the operator wish to feed the shoe manually.
  • the hand lever I28 may still be manipulated to control the widthwise movement of the gripper jaws in accordance with 1e direction in which the operator desires to feed the shoe.
  • a lasting machine having, in combination, a gripper and mechanism for operating the gripper to seize, tension and release portions of the upper or a shoe,.succe'ssively, in different locations along the edge of the shoe bottom, an overlaying member operable, in time relation to the actions of said, gripper, to lay the lasting margin of the tensioned upper in over, and to press it against, the shoe bottom in each location, and mechanism for oscillating said gripper lengthwise of the shoe, selectively, in either direction, away from and then toward a position in line with the overlaying member, after the gripper has tensioned and released a portion of the upper, said gripperoperating mechanism and said gripper oscillating mechanism being so relatively timed as to cause the gripper to be returned substantially to a position in line with the overlaying member prior to tensioning another portion of the upper.
  • a lasting machine having, in combination, a ripper and mechanism for operating the gripper to seize, tension and release portions of the upper of a shoe, successively, indifferent locations along the edge of the shoe bottom, an overlaying member operable, in time relation to the actions of said gripper, to lay the lasting margin of the tensioned upper in over, and to press it against, the shoe bottom in each location, and mechanism for oscillating said gripper lengthwise of the shoe,
  • a lasting machine having, in. combination, a gripper and mechanism for operating the gripper to seize, tension and release portions of the upper of a shoe, successively, in different locations along the edge of the shoe bottom, an overlaying member operable, in time relation to the actions of said gripper, to lay the lasting margin of the tensioned upper in over, and to press it against, the shoe bottom in each location, and mechanism for oscillating said gripper lengthwise of the shoe, selectively, in eitherdirection, away from and then toward a position in line with the overlaying member, after the gripper has tensioned and released a portion of the up per, said gripper-operating mechanism and said gripper-oscillating mechanism being so relatively timed as to cause the gripper as it is moved toward the overlaying member to seize another portion of the upper and to displace said portion in a direction lengthwise or" the shoe and into alinement with the overlaying member, prior to operation of the gripper for tensioning said other portion of the upper.
  • a lasting machine having, in combination,
  • a lasting machine having, in combination, a gripper and mechanism for operating the gripper to seize, tension and release portions of the upper of a shoe, successively, in different locations along the edge of the shoe bottom, an overlaying member operable, in time relation to the actions of said gripper, to lay the lasting margin 1 of the tensioned upper in over, and to press it against, the shoe bottom in each location, and mechanism for oscillating the gripper lengthwise of the shoe, selectively, in either direction, away from and then toward a position in line with the overlaying member, after the gripper has tensioned and released a portion of the upper and prior to operation of the gripper to tension another portion of the upper, said gripper-opcratingmechanismbeing also arranged to move the gripper laterally of the shoe,-in-time relation to the action-ofsaid gripper-oscillating mechanism, soas to'caus'e;the-innenjaw of the gripper, as it is moved towardthe overlaying member, to be inserted be'neaththe
  • a lastingmachinehaving in combination, a gripper and mechanism for operatingthe'gripper to seize tension andrelease portions ofthe upper-of a shoe, successively; in different locations along the edgeoi' the-shoe bottom, an overlayingmember operable; in time relatiori -to the actions'of said gripprto lay the la'stingmargin of, the tensioned'upper in over, and to press it against, the shoe bottom iii-each location; and mechanism for oscillating' thegripper -lengthme of the shoe away'from and then-toward-a position-in line with the overlayingmember, "after the gripper has tensioned and released a portion of the upper; and-prior to operation of the gripper to tension another'portion ofthe-upper, said gripper-operating mechanism also-being arranged to move the gripper downwardly and laterally ofthegsh'oe, in time relation to the actionof said gripper-oscillating mechanism, so as 'to cause the 'innerjaw'
  • a lasting machine having; in combination, a gripper and mechanism for operating'the gripper to seize tensionand release portions-of the upper of a shoe, successively-in-difierent locations along the edge of the shoebottom, an overlaying member operable, in time relation to the actions of said gripper, to lay the lasting-margin of the tensioned upper in ever, and to press it against, the shoe bottom in each location, and mechanism fQr oscilIating the gripperlengthwise of the shoe, selectively, injeither direction, away ⁇ remand then toward a position in linewith the overlaying member, after the gripper has tensioned, and released; a portion of the Y upper and prior to.
  • saidgripper-operating mechanism also being arranged to move the gripper downwardly and laterallyof the shoe; in t me relation to the actions of said gripper-operating mechanism, so as to cause theinner jaw-oi the gripper as it is moved toward the overlaying member to be inserted beneath the lasting margin of the upper closely adjacent to the location where said margin has been laidover, and pressed against, the shoe bottom.
  • a lasting machine having-,-in combination, agripper and mechanism-ioropera'ting the gripperto seize, tension and release portions of the upper of-a shoe, successively, -indifierentlccations along the edge of the shoe'bottom,-an overlaying member operable; in time relation to the actions of said gripper, to lay the lasting margin of the tensioned upper in over, and to press it against, the shoe bottom in eachlocation; and mechanism for oscillating the gripper-lengthwise of the shoe, away fromand then toward a position in line with the overlaying member,- after the gripper has tensioned and released a portion of the upper, said gripper-operating,mechanism also bei arranged to 'move the gripper-flownwardly toward the shoe bottom and laterally toof the-upper.
  • a lasting machine having, in combination, a gripper and mechanism for operating the gripper to seize, tension and release portions of the upper of a shoe, successively, in different locations along the edge of the shoe bottom, an overlaying member operable, inj time relation to the actions of said gripper, to lay the lasting margin of theetensioned upper-in over, and to press it against-the shoe bottom ineach location, the mechanism for oscillating the gripper lengthwise of the shoe, selectively, in either directioriaway from and then toward'a position in'line with' the overlaying memberpafter the gripperhas' tensioned and'released a portion-of theupper; said gripper-operating -'me'chanism- 'being also -'ar ranged to move the gripper downwardly toward the shoe bottomand laterally towardftheedge of the shoe, in time relationtothe action of said gripper-oscillatingmechanism; so as to ca-use the inner jaw of the gripperyasit is moved toward the overlaying membeifl
  • said g ipper-operating mechanism and said griper-oscillating "mechanism being --so' relatively timed as to cause thegripper to-be returnedsubstantially'. to a position in linewith the overlaying member prior to ten'sio'n'ing-another portion 11.
  • a lasting machine having, in I combination, a gripper andmech'anism'ior operating' the gripper to-seize, tension and-release aportion of the upper of a shoe, anbverlayingmember operable in time relation to the actl'on"of -the"gripper; to lay the lasting margirrof the tensioned'uppfirin "over, and to press it; against; the bottom'of the shoe, means for feeding the shoe intermittently "to present dififerent portions' ,of theupperfsuc- 'cessively,;tothe actions of-the gripper and the overlaying memberfand mechanism forjoscillating said gripper lengthwise'of theshoe, away from and then toward-a position in line with the overlaying member," after the gripper has tensioned and releaseda' po'itioriof the upper, said r pp rpe at ng me hanism'a d said i p oscillating mechanism being.
  • a lasting machine having, in combination, a gripper and mechanism for operating the gripper to seize, tension and release a portion of the upper of a shoe, an overlaying member operable in time relation to the action of the gripper, to lay the lasting margin of the tensioned upper in over, and to press it against, the bottom of the shoe, means for feeding the shoe intermittently to present different portions of the upper, successively, to the actions of the gripper and the overlaying member, and mechanism for oscillating said gripper lengthwise of the shoe, away from and then toward a position in line with the overlaying member, after the gripper has tensioned and released-a portion of the upper, said gripperoperating mechanism and said gripper-oscillating mechanism being so relatively timed as to cause the gripper as it is moved toward the overlaying member to seize another portion of the upper and to displace it in a direction lengthwise of the shoe'and into alinement with said overlaying member, prior to the operation of the gripper for tensioning said other portion of the upper and said feeding means being adapted to
  • a lasting machine having, in combination, a gripper and mechanism for operating the gripper to seize, tension and release a portion of the upper of a shoe, an overlaying member operable in time relation to the action of the gripper, to lay the lasting margin of the tensioned upper in over, and to press it against, the bottom of the shoe, means for selectively feeding the shoe, in either direction, intermittently to present different portions of the upper, successively, to the actions of the gripper and the overlaying member, and mechanism for oscillating said gripper lengthwise of the shoe, selectively, in either direction away from and then toward a position in line with the overlaying member, after the gripper has tensioned and released a portion of the upper, said gripper-operating mechanism and said gripper-oscillating mechanism being so relatively timed as to cause the gripper as it is moved toward the overlaying member to seize another portion of the upper and to space it in a direction lengthwise of the shoe, and into alinement with said overlaying member, prior to operation of the gripper for tensioning said other
  • a lasting machine having, in combination, a gripper and mechanism for operating the gripper to seize, tension and release a portion of the upper of a shoe, an overlaying member operable in timed relation to the action of the gripper to lay the lasting margin of the tensioned upper in over, and press it against the bottom of the shoe, means for feeding the shoe intermittently to present different portions of the upper, successively to the actions of the gripper and the overlaying member, and mechanism for oscillating the gripper lengthwise of the shoe, away from and then toward a position in line with the overlaying member, after the gripper has tensioned and released a portion of the upper, said gripper operating mechanism being also arranged to move the gripper laterally of the shoe, in time relation to the action of the gripper oscillating mechanism, so as to cause the inner jaw of the gripper as it is moved toward the overlaying member to be inserted beneath the lasting margin of the upper closely adjacent to the location where said margin has been laid over, and pressed against, the shoe bottom and said feeding means being adapted to feed the shoe
  • a lasting machine having, in combination, a gripper and mechanism for operating the gripper to seize, tension and release a portion of the upper of a shoe, an overlaying member operable in timed relation 'to the action of the gripper to lay the lasting margin of the tensioned upper in over, and to press it against, the bottom of the shoe, means for selectively feeding the shoe, in either direction, intermittently to present different portions of the upper, successively to the actions of the gripper and the overlaying member,
  • said gripper operating mechanism- being also arranged to move the gripper laterally of the shoe, in time relation to the action of said gripper oscillating mechanism, so as to cause'the inner jaw of the gripper as it is moved toward the overlaying member to be inserted beneath the-lasting margin of the upper closely adjacent to-the location where said margin has been laid over, and pressed against, the shoe bottom and said feeding means being adapted to feed the shoe in the opposite direction, when the gripper is moving away from the overlaying member and to hold the shoe against movement in the direction of feed when the gripper is moving toward the overlaying member.
  • a lasting machine having, in combination, a-gripper mechanism foroperating the gripper to seize, tension and release-a portion of the upper of a shoe, an overlaying member operable in timed relation to the action of the gripper, to lay the lasting margin of the tensioned upper in over, and to press it' against', the bottom of the shoe, means for feeding the shoe intermittently to present differentportions of. the upper, ;suc.- cessively, to the. actions of the gripperandthe overlaying member, and. mechanism for oscillating the gripper lengthwise of the shoe, awayfrom and then .toward a .positionin linewith the overlaying membeni. after the; gripper has tensioned and released a. portion. of: the upper, said.
  • a lasting machine having,.in combination, a gripper and mechanism for operating the gripper to seize, tension and release a portion of the upper of a shoe, an overlaying member operable in timed relation to the action of the gripper to lay the lasting margin of the tensioned upper in over, and to press it against, the bottom of the shoe, means for selectively feeding the shoe, in either direction, intermittently to present different portions of the upper, successively, to the actions of the gripper and the overlaying member, and mechanism for oscillating said gripper lengthwise of the shoe, selectively, in either direction, away from and then toward a position in line with the overlaying member, after the gripper has tensioned and released a portion of the upper, said gripper operating mechanism being also arranged to move the gripper downwardly toward the bottom of the shoe and laterally toward the edge of the shoe, in timed relation to the action of said gripper oscillating mechanism, so as to cause the inner jaw of the gripper as it is moved toward the overlaying member to be inserted beneath the lasting margin of the upper closely
  • a lasting machine having, in combination, a gripper for seizing, tensioning and releasing portions of the upper of a shoe, successively, in different locations along the edge of the shoe bottom, an overlaying member and mechanism for operating the overlaying member, in time relation to the action of said gripper, to lay the lasting margin of the tensioned upper in over, and to press it against, the bottom of the shoe in 22: each location, said.v overlaying: .memben. being arranged to move-along a path inclined down-. wardlyztoward.thebottom of the shoeand having an operating face. disposed at an angle. to said pathand substantially parallel to the. plane of thebottomof the shoe and said operating mechanism.
  • .theoverlaying member being adapted to cause .theoverlaying member first to move toward the shoe bottom during a portion of, the tensioning action of the gripper, then to pause .while. thetensioning action is completed, andfinally tolay'the lasting margin in, over, and to press it against, .thebottom of the shoe as the upper is releasedby the. gripper.
  • a lasting machine having, in combination, a. gripper for seizing updrawing, overdrawing and then releasing portions of the upper of a shoe, successively, in difierent locations alongthe edge ofthe shoe bottom, an overlaying member, and mechanism for -,;-operating the overlaying member, in time relation-to the-actionof said gripper, to lay thelasiting margin, of the tensioned upper in over, and t oi press itagainst, the bottom 1 of the shoe in'each location, said operating mechanism being adapted to cause the overlaying member first to move toward the shoebottom, during a portion'ofj'the updraw, next to pause while theupdraw is'completed, then to continue movement toward the shoe bottom during the overdraw and finally to lay the lasting margin in over, and to press it against, the bottom of the shoe as the upper is released by the gripper.
  • a lasting machine having, in combination, a gripper for. seizing, updrawing, overdrawing and then releasing portions of the upper of a shoe, successively, in different locations along the edge of the shoe bottom, an overlaying member and mechanism for operating the overlaying member, in time relation to the actions of said gripper, to lay the lasting margin of the tensioned upper in over, and to press it against, the bottom of the shoe in each location, said overlaying member being arranged to move along a path inclined downwardly toward the bottom of the shoe and having an operating face disposed at an angle to said path and substantially parallel to the plane of the bottom of the shoe and said operating mechanism being adapted to cause the overlaying member first to move toward the shoe bottom, during a portion of the updraw, next to pause while the updraw is completed, then to continue movement toward the shoe bottom during the overdraw and finally to lay the lasting margin in over, and to press it against, the bottom of the shoe as the upper is released by the gripper.
  • a lastin machine having, in combination, means for tensioning portions of the upper of a shoe, successively, in different locations along the edge of the shoe bottom, an overlaying member operating, in time relation to said tensioning means, to lay the lasting margin of the tensioned upper in over, and to press it against, the bottom of the shoe in each location, and a hammer carried by the overlaying member and adapted to strike the lasting margin a. sharp blow. after said lasting margin has been pressed against the shoe bottom by the overlaying member, said hammer being mounted for universal movement about axes extending widthwise and lengthwise of the shoe bottom so as to strike said lasting margin squarely and evenly regardless of lengthwise and widthwise curvatures of the shoe bottom.
  • a lasting machine having, in combination, means for tensioning portions of the upper of a shoe, successively, in different locations along the the shoe in each location, said overlaying member being arranged 'toxmove along apath that is inclined downwardly toward the shoe bottom and having an operating surface disposed at an angle to said path and substantially parallel to'the plane of the shoe-bottom,'and a self-levelling hammer carried by the overlaying member and adapted to be projected through an opening in said operating surface and against the lasting margin "after said margin has been pressed against the shoe bottom by the overlaying member.
  • a lasting machine having, in combination, means for tensioning portions of the upper of a shoe, successively, in different locations along the edge of the shoe bottom, a 'member operating in time relation to'the action of said tensioning means for pressing a narrow area of the upper against the bottom of the shoe in each location, and means for selectively feeding the shoe, in either direction, intermittently to present different portions of the upper to the actions of the tensioning means and the pressing member, said feedin means being constructed and arranged 241 to impart *fee'ding movementsto the shoe, in either direction, of a linear extentless than the width of the areas acted on by the pressing means. ,f
  • a lasting machine having, in combination, means for tensioning portions of the upper of a shoe,..suc'cessively, in different locations along the edge of the shoe bottom, a hammer operating in time relation to the action of said tensioning means for applying a blow to a narrow area of the upper in each location, and means for selectively feeding the shoe, in either direction, intermittently to present different portions of the upperto the. actions of theatensioning means and the hammer, said feeding means being constructed and arranged to impart feeding movements to' the shoe of a linear extent less than the width of the areas acted on by the hammer.

Description

July 29, 1952 E. BUTLER EI'AL LASTING MACHINE 8 Sheets-Sheet 1 Filed May 27, 1949 .fnvenlors: frrvesf L4 Bad/er July 2. 1952 E. L. BUTLER .ET AL 2,604,645
- LASTING MACHINE Filed May 27, 1949 8 Sheets-Sheet 2 July 29, 1952 E. L. BUTLER ETAL LASTING MACHINE 8 Sheets-Sheet 3 Filed May 27, 1949 July 29, 1952 E. BUTLER a-rm. 2,604,645
LASTING MACHINE Filed May 2'7, 1949 8 Sheets-Sheet 4 July 29, 1952 E. BUTLER ETAL 2,604,645
LASTING MACHINE Filed llay 27, 1949 8 Shets-Sheet 5 E. L. BUTLER ETIAL 0 LASTING MACHINE Filed May 194 8 Sheets-s E. BUTLER ETAL 2,604,645
July 29, 1952 LASTING MACHINE 8 Sheets-Sheet 7 Filed May 27, 1949 Patented July 29, 1952 Ernest L. Butler and .Andrew Eppler, Jr.,'Ly1m; Mass., assignors. to United Shoe Machinery Gorporation, Flemington, -N-. J acorporatiom of New Jersey l" z & m1lication May 27, 1949, Serial 0.95,,5981
This invention relates to a machine for lasting different portions of-the upper of ashoe, suc-j cess'ively, in different locations along v thehedge of the shoe bottom; in which thelasting margin of the upper is secured inlasted position, in each location, by means of- -an adhesive and .is herein illustrated as embodied ina machine-of the type disclosed in United States-Letters Patent No. 1,796,451, issued on Marchlfl, 1931, in the name of George Goddu.- It will be understood,:however, that in-certain aspects the invention is not limited either-to use for lasting with an adhesive'or to embodiment in .a machine organization of ;the exact construction disclosed in the aforementioned'patent. I
In lasting :diflerent portions of the upper of a shoe, successively, as for example by means of the-gripper of a machine of the type referred to above, itis desirable-that the s Ii-Pper engage the difierent portions-of-the upper materials, hereinafter called the upper, inlocations not too widely spaced apart, in a direction lengthwise of the-shoe, to the :endthat substantially all portions of the upper will be subjected to the lasting stress, applied by the gripper, and stretched snugly over the last. However, after the upper has been stressed, in one location, and ;its,;l asting: margin secured to the bottom' of the shoe in that location, through the; action of an overlaying member, either byanjadhesigve or-other type o-f;,fastening, for example, astaple, the lasting margin curves inga ,direction; ;lengtl 1;wiseof the shoe from the. position wherexit :liesilatly against the shoe bottom to a. position where-itextends upwardly away fromv the bottom 'of.-:jthe. shoe.v Inasmuch as the gripper, afteriitphasstressed one portion ofthe upper, opens and then moves in a, direction to carry the 'jawawhich engagesjthe inside surface of the upper downwardlycandjoutwardly toward-the edg-eof the (shoe bottom, the shoe must'be-displaced a considerable;distance, in a lengthwise direction, inorder thatthisinnerijaw may get-in under thecurved portion of the lasting--'margin'--of the upper. Also,, if thegripper seizes-the lasting marginof the: upper closely Ladjacent to the locatioawhere it-hasbfeenxsecured to 'th'e bottom of the, shoe; therewill be a tendency for the gripper, when it" moves in a direction to tension the upper, to lift up that pornon of the upper which has just been securedto the shoe bottom. Where the upperha's beensecured to the shoe bottombymeans of a -staple, the staple may be'pulled'sout or, if secured by an adhesive, the adhesivebond may the :broken. Accordingly, inthewuse ofzlasting-machines of the 25 "Claims.-
21. type disclosed in the aiorementioned'patent; i't is necessary for the operator, who-- supports and feeds the shoe manually -to exercise a -certain: amount of care and discretionin'movingtheshoea between successive actions;- of the -gripperand overlaying member sothat diiierent' portions oftheupper will certainly beengaged bythe gripperi andjin such locations as not todisturbportions of the upper which have preyiouslybeen;'secured to theshoe bottom. 3
' Itiis an object of this invention to provide novel and, improved means tor -so-Operating-the gripper of alasting machine as to make it-possiblefor, the gripper "to jengage;-different-portions ofthe lasting marginyof jthe -up1 oe'r--of{a 'shoe in closely, spaced l'ocatfrons and totensiontheuppere in thesellocati'o'ns without isturbingadj-aoent portions-of the upper which-"have -been -previously securedin lasted position to-the'bottomoi the shoe by an overlaying me nber-. Withfthis-end in view, and in accordance witha feature-of this invention, there is provided in a lastingfmaehina having a gripper'jand anpverlaying m mben operable in time relation, thecombination-with mechanism for, operating jfihe glippiei 130889528;
s'ioined and released one? portion oftheupper and prior to" tens'ionin ,BI QthEr'portiOn of- -tl-ie upper;
More particularly, jthe arrangement is a such that the gripper may be selectively oscillated either direct-ion, lengthwise 'OfTihQfSh-bfi" and role-- tively to the overlaying member; so; that a shoe may be lasted 'in either direction; from toe-'to-heel or heel to toe,,and, in, accordancewith-another ieature of the invention, the gripper-opeiatingmechanism andfth'e gripper-oscillating mesh-a nism .may-. be sojrelativelyjtimed "as to the gripper, when movingtoward a'positio line with the overlaying member, to seize a -port on oi the upper. which. is ,offset from: the-overlaying member and to displace,thisportipn-inadirec tion lengthwise, of, the shoe and into; alipeinent with the overlaying member, prior to'its operation for. tensioning,.this,..other portion of "the" Preferably, the .glipper-operatmg 'me'chanisln is also arrangedjto. move the gripper downwardly and laterallyof' the shoe',',injtime relationto the action of the gripper-oscillatingmechanism! Be cause ,of the.,movements which are impartedto thegripper by the actions of thegrippenoperate;
3 7 ing and the gripper-oscillating mechanims, when the shoe is displaced in a lengthwise direction to present another portion of the upper to the actions of the gripper and the overlaying member, the jaw of the gripper which engages the inner surface of the upper is first advanced toward the upper in a location where the upper extends away from the shoe bottom and is then moved in a direction lengthwise of the shoe and 1 toward a positioon substantially in line with the overlaying member, before the gripper is operated to seize and tension this other portion of the upper. Thus the gripper jaw is readily inserted beneath the lasting margin of the upper closely adjacent to a location where thelasting margin has been secured to the shoe bottom. Also, by causing the gripper to seize a portion of the upper which is ofiset from the overlaying member and to displace this portion in a direction lengthwise of the shoe, a certain amount of fullness is placed in that portion. of the lasting margin between the gripper and the location where the upper has been secured to the shoebottom.. Hence, when the gripper is operated to tension another portion of the upper, this fullness which has been placed in the upper tendsto prevent the stress applied by the gripper from lifting the lasting margin of the upper which has been previously secured to the shoe bottom. 7
- Although the aforementioned advantages of the [DOVE]. and improved gripper-operating mechanism may be obtained when the shoe is manually fed alongby the operator, by increments of a magnitude such as to cause the gripper and overlaying member to operate, successively, on closely spaced portions of the upper, in accordance with another feature of the invention, means are provided for intermittently'feeding the shoe to present laying member. Preferably, and asherein illustrated, this feeding means comprises a feed wheel wise of the shoe. ,g
Another object of thisinvention is to provide a noveloverlaying member and improved means for operating the overlaying member, in time relation to the updraw and overdrawactions of the gripper. To this end, the overlaying member is arranged to move along a path that is inclined downwardly toward the bottom of a shoe presented-to'the machine and is provided with an operating surface that isv disposed at an angle to its path of movement and substantially parallel to the bottom of the shoe, while the operating mechanism is arranged to cause the overlaying member first to move toward the shoe bottom, during a portion of the gripper, then to pause while the updrawing action is completed and finally to continue'itsmovement during the overdraw so as to lay the lasting margin of the upper in over, against, the bottom of the shoe just as the upper difierent portions of the upper to the actions of the gripper and the over-,
seized another portion of the upper and is displacing it in a direction length- 1 updrawing action of the and to press it is released by the gripper. With this novel overlaying member construction, the lasting margin of the upper is laid flatly against the bottom of the shoe while the improved action of the means for operating the overlaying member not only insures that the updraw action of the gripper will be completed before the overlaying member engages the upper but also makes certain that the overlaying member will engage, and follow, the upper during the overdrawing action of the gripper so as to be in a position to press the lasting margain against the shoe bottom at the instant it is released by the gripper.
When lastingwith an adhesive, it is necessary that the lasting margin be pressed firmly against the bottom of the shoe with a considerable force to insure that the lasting margin of the tensioned upper will be securely bonded to the shoe bottom. It is also desirable that this bonding pressure be applied to the entire lengthwise extent of the lasting margin without any gaps between locations where pressure is applied. Accordingly, and in accordance with another feature of the invention, the overlaying member is provided with a hammer which is adapted to strike the operating surface of the overlaying member and I is so mounted as to be self leveling to strike the lasting margin squarely and evenly, regardless of lengthwise and widthwise curvatures of the shoe bottom. Also, to the end that all portions of the lasting margin be subjected to the pressure of the overlaying member and/or the hammer, the feeding means is so constructed and arranged as to impart feeding movements to the shoe of .a linear extent that is less'than the width of the areas to which pressure is applied.
Other objects and features of this invention will appear in the following detailed description of the embodiment illustrated inthe accompanying drawings and will be pointed out in the claims.
In the drawings,
Fig. 1 is a perspective view of a lasting machine embodying the'features of this invention;
Fig. 2 is a view similar to that of Fig. 1 taken from the opposite side of the machine;
Fig. 3 is a view in side elevation showing the operating elements of the machinewith certain parts broken away and others shown in section;
Fig. 4 is a view in section, substantially on line IV-IV of Fig. 3 and looking in the direction of the arrows, of certain of the operating elements;
Fig. 5 is a view of one of the operating elements of the machine as viewed from below and partly broken away; 1
Fig. 6 is a view in side elevation of operating mechanisms forming part of the machine shown in Figs. 1 and 2;
Fig 7 is view in section, substantially on line VII-VII of Fig. 6 and looking in thedirection of the arrows, of a portion of one of the operating mechanisms shown in Fig. 6; v v V I Fig. 8 isa View in side elevation of a part of the other operating mechanism shown in Fig. 6;
Fig. 9 is a view in side elevation of the operating elementsof the machine similar to that of Fig. 3 but at a smaller scale and illustrating other; operatingmechanisrns; I Fig. 10 is a view ofan operating mechanism forming part of the machine shown in Figs. 1 and 2, with certain parts in vertical section; a
aegerer:
11'is a'view in section; substantially on the line XI-QH in Fig. and looking in the dir'ec tion of 'the arrows;
Fig. 12'is' a view in section-substantially-* orr shown in'Fig. 6; as-*viewed from the'-right-hand side of this figure;
Fig. 15 is a-viewin-section-of another d'eta-il ofbonstruction of the-machine; substantially-on line-XV-XV in Fig. Q-ancl'lookingin the direc'-- tion" of the arrows;
Fig. 16 is aperspective .view illustrating theaction of one-'of-the-op'erating element's of th'e machine;
Figs; 17, 18 and 19 areviewsin side-elevationshowingdifierent positions assumed by certain of the operating elements-of the machine during an operating cycle; and
Fig. 20 is a timing chart.
Referring. to the drawings and particularly Figs. -1 and 2 thereof, the features of this inven-' tion are illustrated as embodied in amachine ofthe same general construction asthat shown-in the aforementioned patent. Thismachine hasa gripper, comprising. jaws 30, 32, an overlying;
member, indicated. generally by thereference character 34, a shoe-bottom-engaging feed wheel 36,. and an edgegage roll 38. Theseiseveral operating elements are associated. with; and operated by, mechanism containedrwithima hollow" head construction 40.which.is mounte'don-the top of a column 42'of suitable height. The var-- ions-operating mechanisms are driven from cams carried by a main shaft 44whichis drivenfrom a power' source not shown, .by meansioft a: clutch mechanism similar to that provided in the machine of the mentioned patent, andrunder the. control of two- treadle rods 46 and 48;.corresponding respectively to the two treadle rods I26 and I84 of the patented machine.
Turning now to Figs. 1, 2, 6, 7, 13 and 14, the" gripper is of thesame constructionas that of.
the prior patent and is suspended-fromatwo:
part updrawing lever-50, mounted on the head 40, b-y means ofa pivot pin 52, Fig. l3,- and. its. body portion 54 is slidablymounted in a member 56 that is threaded to receive a screw 58. Fig. 14; for. a purpose to be explained below. The screw: 58 is .rotatably supported, at its-opposite ends,in a bracket member 60'. and .an extension 62v secured thereto, and this bracket member is formed integrally with an overdraw rod-64, which cor.- responds to the overdraw rod 2H] of the patented machine and is connectedto atwo-piece overdr'aw lever 5'6iby means of a pin 68 andblock T0,".Fig. 7." Carried by the. updraw lever 50 is .a gripper-closing rod' 72 'which, at certain times-inthe operating cycle of the machine, closes. the. jaws30, 32"'ag ainst'the resistanceofia jaw-openingspring 14; 1L
The gripper ofthe herein illustrated. machine: is'operated in the same manner for seizing, up,- drawing, overdrawing and releasing different. portions of the upper of a shoe as thegripper. disclosed and described in the aforementioned patent, the. gripper-closing rod.112-,' updraw lever 5'02 overdr'aw rod'6'4 'andgrippereopening. spring ll-being under the controlof'various operating camsgnot shown, carried by the-main shaft 44 Also; the updraw action and overdraw: action 1 imparted to'the- gripperjaws 30, 32. by' the updraw lever '50 and the overdrawrod -64 may be varied, respectively, by a hand nut-16 and a handlever 'lll inth'e'same-manner and .by mechanisms similar to those disclosed in the aforementioned patent to which reference may be made for a detailed description of'these-various gripper-operating' mechanisms which form-no part of the present invention.
Referring again to the screw-58,- which'is received'by the member 56, in which the bodypor tion *54 of the gripper' is-mounted, this screw is adapted; when" rotated, to impart additional movements tothe gripper jaws 30, 32,- for the purpose of certain features of-this invention. Inv
the operation of the gripper-operatingmechanism which has been so far described, and as set forth in the prior patent, after the gripper has tensioned a portion of the upper of ashoe, the
jaws 30-} 32 are first opened, next moved-down wardly to position the'inner jaw-30 close to the bottom of the shoe, and then the gripperis moved laterally of the shoe to shift the inner jaw 30-; outwardly to the edge of the shoe'bottom and into a position to engage the inside'surface of theupper material when the jaws are again closed. In addition to these movements of the gripper, which take place in a vertical. plane substantially in line with the *overlayingmember-M; the gripper jaws 30 32 are'oscillated in adirectionlengthwise of the shoe; first away fromand'then toward a position in line: with the overlaying. member; in the following manner.
The screw 58: has. formedthereona-pinion 89 which meshes; with a rack 82 that: is-- slidably mounted: in the. bracket member 60- and-connected; by means of a link 84, to an arm 86; Fig. 6.
This armis pivoted'on. a stud 88-,-carried by an upstanding portion 99: of the-head 40: and has two oppositely extending ears 92,- 94, to whi r Illl, that is mounted on a stud. I I2 carried by a downwardly extendingportion. H4 on the head 40. A pin H6 extends through the elongated slots in the ends. of the links 96 and 98 and this pin'is mounted in the bifurcated end. of the arm I03.
The arm llil of. the bell-crank lever carries a cam roll [39,. which. engages a cam III on the main shaft 44 (Fig. .9) and this cam is so shaped that the bell-cranklever is rocked, once for each revolution of the mainshaft, first down to the position shown in Fig.6 and then up in thedirection of the arrow. When the two links 96 and 98 are moved downwardly and to the positions shown in Fig. 6; the pin I l6'"will'eng'ag'e the elf-'- set portionl 02 of the slot [00in thelink 96, while at the same timesliding freely along the slot I04 inthe link 98, so that the link 9'6'Will be reciprocated'in such a manner as to cause the arm.86 to oscillate, down from the dotted line: position-tov the solid line position shown inFig. Band then back to the dotted-line position. On" the other hand; when the links 95, 98f'are moved upwardly, the pin I It" will engage the onset por= tion I of the slot I04 in the link 98 (see Fig. 8), while sliding freely along the slot I00 in the link 96, so that the link 98 will be reciprocated in such a manner as to cause the arm- 86 to oscillate upwardly from, and back to, the dotted line position shown in Fig. 6. When the links 96 and 98 are moved downwardly, to the position shown in 1 Fig. 6, the screw 53 will be rotated back and forth, through the actions of the rack 82 and the pinion B0, in such a manner as to cause the body portion 54 of the gripper to be swung about the axis of pin 52, Fig. 13, in a direction first to carry the jaws 30, 32 to the right, solid arrow in Fig.
14, away from a mid-position in which th jaws following mechanism is provided, rods I20, I22
are pivoted, respectively, to the links 96 and 9B,
and each of these rods passes through an opening I24 formed in a block I26 that is carried by a hand lever I28, Fig. 6. For the purpose of simplicity, and since the lower end of the rearmost rod I22 is substantially hidden behind the lower end of the front rod I20, only the lower 'end of the latter is shown in the drawings. On each of these two rods there are a pair of collars I30 and I32 between which and the block I29 are mounted compression springs I35, I35. A tension spring I38 is stretched between the block I26 and a lip I40, supported on stud I I2, and the arrangement is such that the spring I33 acts as a toggle spring for holding the hand lever in either position to which it may be shifted, either to elevate or to lower the links 96 and 98, through the actions of springs I34, I35. Thus, by manipulating the lever I28, the gripper jaws 30, 32 may be selectively oscillated in either direction lengthwise of the shoe first away from and then toward a position in line with the overlaying member. This oscillation of the gripper jaws 30, 32 in a direction lengthwise of the shoe is effected in a definite time relation to the operation of the gripper jaws to seize, updraw, overdraw and release a portion of the lasting margin of a shoe as will be more particularly explained below.
The overlaying member 34 is mounted for sliding movement on a guide block I50 which is se' cured to an arm I52, formed integrally with a trunnion shaft I54, Figs. 3 and 15. This trunnion shaft is journaled in a portion of the head 40 and has a reduced end portion I56 to which there is keyed an arm I58. This arm carries two adjusting screws I53, I92 which are adapted to bear against a stud I64, screwed to the head 40. By manipulating these screws, the guide block I may be tilted, relatively to the head 40, so as to vary the angularity of the path of movement of the overlaying member with relation to the bottom of a shoe presented to the machine. The overlaying member 34 is reciprocated on the guide block I50 and along a path inclined downwardly toward the bottom of the shoe, in time relation to the action of the gripper by means of a cam I'IO on the main shaft 44 which engages a cam roll I12, carried by the overlaying member, see Fig. 9. The path of this cam is shaped with two risers I'Il, I13, so that th overlaying member is moved toward the shoe bottom in two distinct steps.
For laying the lasting margin of the tensioned upper in over, and for pressing it against, the bottom of a shoe, the overlaying member is provided with an operating surface I80, having a nose I8I. which is disposed at an angle to the path of movement of the overlaying member and in a plane that is substantially parallel to the bottom of a shoe presented to the machine, Figs. 3, 9, 17, 18 and 19. As shown in Fig. 19, when the overlaying member 34 is moved along its inclined path by the cam I10, the operating surface I will lay the lasting margin of the upper over, and press it flatly against, the bottom of the shoe. In order to augment the pressing action of the overlaying member, it is provided with a hammer I82 which is arranged to project through an opening I85 in the operating surface I80 and to strike the lasting margin of the upper a sharp blow after the lasting margin has been laid in over, and pressed against the shoe bottom, by the operating surface I39.
This hammer is carried at the lower end of a plunger I84 which is slidably mounted in the front end of the overlaying member 34, Figs. 3 and 9. At its upper end, this plunger is connected to an operating link I86 which is pivoted to a bell-crank lever I88, carrying a roll I92 that is held against a cam I92 by means of a spring I94, see Fig. 9. The cam I92 is mounted on the main shaft 44 and is so shaped that the plunger I84 will be projected downwardly by the spring'l94, to cause the hammer I82 to strike the lasting margin a sharp blow, at the termination of the outward and downward movement of the overlaying member by the cam I19. An adjustable stop I93 is arranged so as to engage a bumper block I95, carried by the overlaying member, for limiting downward movement of the plunger I04. The hammer I82 is provided with an operating face having a plurality of projections I98, Fig. 5, so as to concentrate its action over a plurality of closely spaced points on the lasting margin and is mounted so as to be self leveling in the following manner. The lower end of the plunger I84 has a spherical recess I and the hammer is spherically shaped at 200 so as to be held in this recess by means of a spring 202, Figs. 3 and 19.
The shoe-bottom rest of the machine comprises a feed wheel 35 which is operated to move the shoe along in time relation to the actions of the gripper and overlaying member in the following manner (Figs. 1, 2, 3, 9 and 10). The feed wheel is formed integrally on the end of a shaft 298 that is journaled in the lower part of a forwardly and downwardly extending bracket 300 forming part of the head 40 (Figs. 3 and 1G) On the shaft 298 is a bevel gear 392 which meshes with a bevel gear 394 carried by a shaft 353 that extends upwardly in the bracket 300. The shaft 306 is provided with a portion 303 of enlarged diameter which is received in a counterbore 389, formed in the bracket, and beyond the enlarged portion 308 there is pinned to the shaft 398 an elongated hub 3I0 which comprises part of a double-faced ratchet wheel 3I2, Fig. 10. Slidably mounted on the hub 3H) and on an extension 3 of the shaft 306 is a cage 3I5 c0mpris 111g end plates BIB, 320 and a cylindrical intermedlate member 322, secured together by means of screws 324, Fig. 10. The end plate 320 has extending therefrom a shaft 326 which is jo I racks ;-,nru eans-ofv a plate 358. theaahm 356 is an extension carrying aroll 360 that engages a earn 362 carried by the main shaft -naledin the bracket. 300 and-bored .to .receive ntherend 31,4. of the-shaft 306.
.Beferringto Figs. and 11, there is-secured tothe end plate: 318 a sheet metal disc 328 which is cutaway. so as to providethree outwardly projecting spring fingers330. 1 The lower face of .theratchet wheel 312 isformed with a series, of teeth 332 that are faced in a direction opposite .to the fingers 330. Similarly, there issecured tothe end plate .320 a disc 334 that is formed rwith three spring fingers 336 and-the upperface 7,01 the ratchet wheel 3|2.isprovided with a series of. teeth .338 that face in a direction opposite :tOithQ fingers 336 and also opposite to the-teeth .332. Thevshaft; 326 is formed with a pinion 346 t which. is adapted to mesh with either one of two racks 342 or 344.
-- With the various parts in'the positions shown .in F g lll, when the rack 342 is moved rearward- /ly. the-ratchet wheel 312 will be driven by the .fingers 330 so as to-rotate the feed wheel 35 in ,=.,.a-,- clockwise direction, see solid arrow; through the shaft 30S and the gears 302- and 304. 4 How- ;-z ever,- when the rack 342 is moved'reversely, rotation -01 the shaft .366,- and hence of the feed wheel; is prevented by theenga'gement of a pair of springj;fingers 346, secured tothe bracket/360, with a notched surface 348 formed on the upper "@ljd'yOf the'enlargement '308 on the shaft 366,
.seeli'igs. .10 and 12. On the other handif the shaft 326 iswmoved downwardly so, as to bring the-pinion 346 into; mesh with'the rack 344,,the fingers 336 will be brought into engagement with 57151181 teeth; 338 and rearward movement of the rack; 344 will effectrotation of the feed wheel ;in-;the opposite direction (dotted arrow). Upon reverse movement .of the rack 344, the spring .v flngers 346 will hold'the-feed' wheel 136. against :rotation in the same manner as before.
, Theracks 342 and 344 are joined together for ;s imultaneous reciprocation in the followingman- --ner. (Sonnected ,to the inner ends of these two is a link .350,'Figs. 2, 9 and 15, andthis link is connectedto a block 352 that is adjustably .secured, by-mea-ns of a clamping screw 354, in
a groove -.3 55'thatis formed in an arm 35$. This armisrotatably mountedupon-the end 156 of the shaft I54 and is held in place thereon by Formed integrally with 44. Thi c i so shaped that the-racks e42, 344. arezreciprocated to the left as viewed in Fig. 9, oncewfor every revolutionof the main shaft and -.,-in-.time relation ,to :the actions of the gripper, and .-;the-.o,verlaying member.
' For shiftingthe position of the shaft 326; to
,,.bri ngthe pinionr'340 into engagement with one Hertha/other of the racks342-or 344, the'following, mechanismis provided. A grooved collar 366, wsecured to the u-nper endof-the shaft 326, is engaged. by rollers 368-carried byone end of aplever 7 310, that ispivotally mounted on a portion of the ...bracket36ll,- -Figs. 2 and 10. Passing through a nf-hole 37 2 iormedin -,o ne-end-of the lever 316 is a trod 3l4 -to which are secured two collars 316 and .i3518,;Figp2,-andbetweenthese :two collars and ,rthe end of the lever 3'l0 -are compression springs =,360,;.362. .Ate-nsion spring 384is stretched be- ..-;tween; a pin 386, onthe bracket 360, and another "pin on the opposite end of the lever 3-10. This springacts as a toggle spring and tends to hold 'the lever 316, and with it the shaft 326, in either one of two-positions, namely, in the positions shown inFigh '10 in which the pinion 340 ,is in ..mesh.with the rack 3.42 andthe fingers 330 ,drive ,the ratchet wheel 3| 2, or in a lowered position in which the shaft 326 is moved downwardlygso that the pinion 34,0 meshes with the rack. 344 and the ratchetwheel 3|2 is driven by. the fingers 336, asexplained above. The rod 314 is connected .to one arm 3900f a bell-crank lever the other. arm
. 39! of which is connected to the hand -lever' l-28 bymeans of a rod392, Figs. 1 and 6.
. Referring to Figs. 6,10 and 14, when the. lever 126 is in the position shown in solid lines, Fig.6, the gripper jaws .330,.332.will be .oscillated,.i n..a
. direction lengthwise ofthe .shoe, first away from and then toward a mid position in line with-the overlaying member. 34. In thus moving away .from. the mid position, the --jaws will go tothe in Fig- 10 so that the feed Wheel 36 Willbe J .in aclockwise direction, and a shoe heldagainst the feed wheel moved to the left. On the. other right as -vie'wed.in;-Fig. .14. .At the same. time,
the lever 31.0 Willbe swung. tothe positionzshown rot e hand, when the hand lever I28 :is moved down to the dotted line. position in-Fig; 6, solid-line position in Fig. 1,-the gripper Jaws-will moVeaway from the mid position and tothe left, as viewed in Fig. 14, and the feed wheel--35 will-be rotated in a-counterclockwise direction, Fig. 10, so as to feed a shoe in the. opposite direction or to the right. In other words, and as will be explained below, by manipulating thehand-lever;l:28,.-the direction in whichthe shoe-is fed may bereversed and, at the same time, the. direction =in-which the gripper jawsare .moved-away. from-.their mid .position iswsimultaneouslyreversed. Ihus,
in --moving-away from their -mid position; the
. gripper jaws alwaystravel in a direction;; epposite to that inwhichthe-shoe is being fed-along by the feed wheel.
In-order tomake .it possible-for an operator to feed a shoe manually, mechanism is provided for freeing the-feed wheel 36 so that it can-rotate idly. This mechanism comprises ashaft-4ll0 having a flattened sideAUZthat-is in en agementwith the lower face of the enlargement :308- and-the shaft 306, F g-10. On'the outer 'end, ofqthisshaft a knurled knob 404; is-secured and :benea'thithis knob a pin 406 passes through the shaftclnmgA compression spring 468 is arranged so as to carry the shaft-406m the left and upwardly; as viewed in Fig. 10,: to :holdthe pin 4 06; in one orjthe other .at right angles to each other. --W;hen the knobgis ,pullednut to.lift;th e pin 463 o utof agrooye-flplll,
the shaft ma berotated to cause-.the flattened .side 462. ,to lift theshaft .366, -bywengagement .Wi th the .enlargedportion- 308,- :thus disengaging-the gears 304, and.302 andfreeing the feed wheel :36.
, Theedge guideroll38 is rotatablysupported ,on the outer end of asupporting-,member-420 that is..pivotally--mounted on a stud .422; F'g; 3.
v This .stud is-earried bya block. 424.--which 1s;ad-
. .justably secured tothe ahead :40 by means f a clamping screw .426. The member. 420. extends .rearw-ardly, beyond the stud 422: and is provided p with anarcuateslot428 through which there extends a bindingscrew .430,that;;is threadedinto the block: .424. By loosening :the binding {screw 4.30, the member-AZII-may. be rocked abontirthe "taxis (of-the stud .422to elevate or lower the edge guide roll 38, while aby loosening the c1azmp screw 426 the block424-may be shifted on'the head 40 to .varythe lateral position ,of; the edge guide roll.
The mode-of operation of the, several elements of the machine will now be explained with referber 34, 5110515 .fed along intermittently, by the feed ,ence to the lasting of a shoe comprising an upper U and lining L assembled on a last A together with aninn'er sole I.
Referring particularly to Figs. 3, 4, 16, 17, 18,
19 and 20, the operation of the machine will be outlined in the manner in which it occurs when the hand lever I28 is moved to the position jmove to. the right and then return to their midposition in alinement with the overlaying mem- In Fig. 16, the direction in which the wheel, is indicated by .a solid arrow and the movements of the gripper jaws are diagrammaticallyillustrated by means of a relatively heavy arrowed line a, b, c, d, e, and 1, that corresponds roughly to the path of movement of the inner jaw 30. Similarly, in Fig. 4, the arrowed line a, c, d, and 1 represents the path of movement of the inner jaw 38 in a horizontal plane, while in Figs. 17 and 18 the arrows showing the direction of movement of the gripper jaws are identified with the letters e and f corresponding to similar portions of the arrowed line a to f.
It has already been pointed out above that the actions of the gripper jaws 39, 32 to seize, updraw, overdraw and release different portions of the upper materials of a shoe are the same as those of the gripper of the machine disclosed in the above-mentioned patent. The overlaying member 34 also operates in timed relation to the tensioning action of the gripper substantially in t the same manner as in the patented machine. However, in the herein illustrated machine, the gripper jaws are also oscillated in a direction lengthwise of the shoe, first away from and then toward a position in line with the overlaying member and the shoe is fed along, intermittently,
, by means of the feed wheel in time relation to the actions of the gripper and the overlaying member; i
Referring now to Figs. 3, 4, and 16-20, a complete operating cycle will be described beginning at about 240 on the timing chart (Fig. 20) At this point in the cycle, the gripper jaws 3D, 32 have just tensioned and released a portion of the upper materials U and L and the lasting 1 margin has been secured in lasted position to the inner sole I, by means of an adhesive coating previously applied to the inside surface of the upper materials and/or the insole, as a result of the pressing actions of the overlaying member 34' and the hammer [82, see Fig. 19. The hammer l82 has been elevated to a slight extent (see hammer cam on timing chart) in order not to interfere with the feeding of the shoe which begins immediately, the feed wheel 36 being rotated in a direction to move the shoe to the left in Fig. 16 (see feed cam on timing chart). During the time that the shoe is thus being moved to the left, the overlaying member 34'is withdrawn away from the shoe bottom and the gripper is swung to the right by the screw 58, so as to cause the inner jaw 30 to move along a path indicated by the line a (pincer side throw cam). At the conclusion of the feeding movement of the shoe and while the shoe is being held stationary by the feed wheel 36,
the'gripper first descends and causes the jaw 30 to move along the line bitoward the inner sole I (updraw cam) and then moves outwardly to cause the jaw 30 to follow the' path 0 (overdraw cam). Now the gripper is returned to its mid-position in alinement with the overlaying member 34, see liner-41: in Fig. 4, so that the jaw 30 followsthe path at (pincer side throw cam).
As shown in Fig. 16 by the broken lines, the lasting margin of the upper materials curves upwardly and outwardly, from the location where it has been secured to the inner sole, indicated by the dotted line representation h of the area acted on by the hammer in Figs, 4 and 16, to a position where it is nearly vertical tothe inner sole. By moving the gripper jawsin directions lengthwise and heightwise of the shoe and causing the inner jaw 35 to follow substantially the paths a, b, c, and d, this jaw is easily inserted beneath the lasting margin of the upper materials, in a location closely adjacent to the place where the upper has been secured to the inner sole, sinceit first moves toward the lasting margin in a location where the margin is merely vertical and then moves in'a direction lengthwise of the shoe'beneath the margin. As will be apparent from an examination of the timing chart, Fig. 20, the cams are so shaped that the path a to d is only approximated and movements along the pathsb, c, d occur simultaneously and more or less along the arrowed line b, c, d, Fig. 16. However, the inner jaw is inserted beneath the curved portion of the'lasting margin before the gripper has returned to its mid-position and prior to operation of the gripper to seize, tension and release another portion of the upper materials.
After the gripper has been returned to its midposition and the inner jaw inserted beneath the lasting margin in the manner explained above, the jaws 38, 32 may be closed to seize the upper materials, as shown in Fig. 17. Next, the gripper jaws are moved upwardly substantially along the path e to exert an updrawing stress on the upper U and lining L for tensioning these materials over the last A. Preferably, and in the herein illustrated machine, the inner jaw 30 is provided with a smooth operating face 503, for engaging the lining L, while the outer jaw 32 has a toothed operating surface 502 for engaging the upper U, and the jaws are closed on the upper materials with a relatively light pressure. Accordingly, as the jaws 30, 32 move upwardly, along the path e, the upper and lining slip through the jaws, the tension in force applied by the smooth jaw 30 being just suflicient to remove any looseness from the lining, and the greater tensioning force exerted by the toothed.
jaw 32 being sufficient to stretch the upper snugly over the last A. At the conclusion of this upward movement of the jaws 39, 32, the various parts assume the positions shown in Fig. 18. Thereafter, the jaws are moved along the path f to draw the lasting margin inwardly over the inner sole and, at the conclusion of this overdraw movement, the jaws are opened to release the upper materials which are immediately laid in over, and pressed against, the inner sole by the actions of the operating surface Hill on the overlaying member 34 and the hammer I82.
As explained above, the overlaying member 34 is moved toward the bottom of the shoe along an inclined path, see arrows Figs. 1'? and 18, and in axthe movement. of: the: 'overlayingrmember: occurs during the. beginning of the upward movement ofthe- jaws 30, 32, in the direction of the arrow .fe; Fig. 17, and thearrangementis such that --movement :or the-overlayingmemberv is-;.arr.ested I and the overlaying member heldstationary while the upward. movement of "the j aws .is completed, the. overlaying member stopping withjitsnose IBI i 'justi touching the tension :lasting ,marginflof the upper materials .as shown in Fig. '18. Now,- as
the jaws are moved to the left, in the direction of the arrow f, to draw'the lastingmargin of: the tensionedupper materials inwardlyworer the inner sole I,- the second :step of the-movement of the overlaying member occurs so that theover laying member follows the .inwardmovement :lof the lasting margin and finally lays the lasting 1' marginin over, and pressesitflatly againstgthe .sinner sole I, Fig. 19; with an easyxand .smooth raction which :does not'jar the shoe, just ,af-terthe 'J'aws'are opened -(approx.;195 on'the, timin .rchart, Fig. 20). The hammerv I82 isinow operatedto strike the lastingmargin of ftheupper materials a sharp blow, to cause :the .lasting margin to. be securely bonded to the inner sole by. the previously applied adhesive, at about .210" on the timing chart. The cycle. is completed in the-next:30 during'whichthe hammer is elevated prior to the withdrawal of the overlaying member which occurs at the beg n g'ofthenext cycle .as explained. above.
.Asrsuggested above,:" it is desirable :thatfthe gripper jaws '30, 32 .operateon closelyispaced portions of the upper materialsto the end -thatjthese materialszmay be snugly. stretched over thelast. :It'istalso-important. thatiall; portions of thelasting :margin be subjected to the action of-the -.hammer;so that every lengthwise part ofrthe'last- -ring-margin.will bev securelybonded to the inner -ssole.by the adhesive. ..Accordingly; the feeding v:incrementswhich are imparted to the shoe byxthe .feedwheel 36 preferablyshould be at least of no greater. linear extent thanjthe 'widthof the operaitiveface. of the hammer 1.82. v.Referringuto Figs. '9 and 15.,the magnitude ,of thefeeding increments u 'may be-varied by changing the .position of the "rblocle 3'52 along'thegroove 3.55.
With-the parts constructed.as.shown, therange of feeding increaments is'from' /8" to "-.and the block .354 is mshownras so positioned as to. provide for a feed of. approximately 4 The 4 operatingface ,ofrthe hammer 1:82 is aboutin diameter -so=thatthe :areas Ih on which the hammer actsoverlap slightly; as shown in Fig; 4. Preferably,-=and..as herein illustrated, the gripper. oscillating mechanism is arrangedto swingthe jaws-0, 32 away .from their mid-position a. distance. thatis somewhat. greater thanthemaximum feeding movement and herein shown .as being approxi- -mately i While feeding of the shoe by relatively short --'increments /4"): gives improvedresults inithat fitsassuresthatall portions of theupper materials "will be subjected to lastingstress andalso securely bonded to the. innersole, it also presents a prob- :lem. With .a feeding increment of this-magnitude. if the gripper jaws were returned 'all the awayto their mid-position-b'efore closing, these .jawswouldseize a portion ofthe lasted-margin of the upper materialsin a, location. spaced only /4"away from the place where the lasting margin had been previously secured to'the inner sole. 1 As a'matter of fact, the edge of-the-area"h,'Figs. 4 and 16, whichis, nearer to the gripper-would be even closer the. locationwhere ,theku-pper very considerable tendency for the jaws also to l ft that portion of the lasting margin which had been previously secured to the inner sole.
.-In orderto avoid this difilculty, whileistill .re- :taining the advantages of the relatively short feeding, increments, the following arrangementris provided. Referringyto Fig. 4 and Fig. 20, the
;jaw.;cam.is so shaped as toeffect. closing of the laws 30, 32 on the lasting margin before the jaws have returned all the way to their mid-position. 15...
At this time in the cycle, the shoe is held stationary. against movement in the direction of feed bythe feed wheel 36 and the. action of :the spring .fingers 346 (Figs. 10 and 12.) so that as the jaws complete their return movement a certain amount of fullness y,is placed in that part ,of the lasting margin which is between the gripper jaws and the location where the lasting margin is secured to the inner sole, see Fig. 4. Now, when the jaws are operated to updraw the upper materials, this slight fullness to a considerable extent isolates that portion of the lasting margin which has been secured to the inner sole from that portion which is being tensioned and, in this manner, prevents the former from being lifted up or otherwise disturbed. It has been found that a very slight amount of fullness is quite effective, in this respect, and, in fact, if the jaws are closed in a location only 1%" to 4 away from mid-position,.as
'- shown on the timing chart, alldifllculties with regard to a disturbance-of previously secured portions of-the lasting margin is avoided. At the same time, sucha small amount of fullness is tion of feed, results in a better lasting action.
With-the updraw' and pincer side throw: cams shaped, :as illustrated on the timing chart, Fig. 20,
:the updraw movementofthe'gripper begins while 1 the gripper is returning to its mid-position. However, no actual tension is applied to the upper materials until the gripper jaws have returned to mid-position and :the aforementioned fullness placed in :the 1 lasting margin of the uppermaterials.
In'lasting'a shoe,'it is a usual practice for the -operator to start 'the lasting operation at the breast line, on one side ofthe shoe, and then to proceed to the tip line. After'one side of the shoe has sheen lasted; the-shoe is turned around to bring its other side tothe'machine and the lasting :operationrepeated; again beginning at the breast line and proceeding to the tip line. Obviously,
such a procedure requires that the shoe be fed along from right to left, on one side, and from left to right on the other side. -In the herein illus trated machine, the direction of feed maybe re- 'versed by man-ipu-lating the hand'lever I28 which also changes :the direction in which the gripper jaws 30, 32 are moved away from theirmid-position. The dotted-arrow on the shoe and the relatively light arrowed line a to d in Fig. 16in- :clicate the direction' of'feecl and the" path of :movement of the-gripper'when the hand lever 28 is moved to the position shownin dotted line in Fig; 6 and :in'solid line in 'Fig. 1. It will be understood that the portions e and f of the'path of movement of the inner jaw 30'will be the same,
and-lie in a plane :t-hatis in .alinement with the overlaying member 34, regardless of the position of the hand lever I28.
As suggested above, the operation of the main shaft it is under the control of two treadle rods so and 4B. In the same manner as in the prior patented machine, these treadle rods are arranged to be operated by two treadles, not shown, in such a manner that both rods may be moved downwardly to effect operation of the gripper, feed wheel and overlaying member, or the rod 4-5 only may be moved downwardly to efiect operation of the overlaying member and feed wheel, while the gripper remains idle. In either case, the clutch mechanisms are adapted to present the main shaft to a stop with the gripper jaws opened and the overlaying member withdrawn,
as shown in Fig. 3. Also, the feed wheel 36 may be disconnected from its driving means should the operator wish to feed the shoe manually.
. Under these conditions, the hand lever I28 may still be manipulated to control the widthwise movement of the gripper jaws in accordance with 1e direction in which the operator desires to feed the shoe.
press it against, the shoe bottom in each location, and mechanism for oscillating said gripper lengthwise of the shoe, away from and then toward a position in line with the overlaying member, after the gripper has tensioned and released a portion of the upper, said gripper-operating mechanism and said gripper oscillating mechanism being so relatively timed as to cause the gripper to be returned substantially to a position in line with the overlaying member prior to tensioning another portion of the upper.
2. A lasting machine having, in combination, a gripper and mechanism for operating the gripper to seize, tension and release portions of the upper or a shoe,.succe'ssively, in different locations along the edge of the shoe bottom, an overlaying member operable, in time relation to the actions of said, gripper, to lay the lasting margin of the tensioned upper in over, and to press it against, the shoe bottom in each location, and mechanism for oscillating said gripper lengthwise of the shoe, selectively, in either direction, away from and then toward a position in line with the overlaying member, after the gripper has tensioned and released a portion of the upper, said gripperoperating mechanism and said gripper oscillating mechanism being so relatively timed as to cause the gripper to be returned substantially to a position in line with the overlaying member prior to tensioning another portion of the upper.
3. A lasting machine having, in combination, a ripper and mechanism for operating the gripper to seize, tension and release portions of the upper of a shoe, successively, indifferent locations along the edge of the shoe bottom, an overlaying member operable, in time relation to the actions of said gripper, to lay the lasting margin of the tensioned upper in over, and to press it against, the shoe bottom in each location, and mechanism for oscillating said gripper lengthwise of the shoe,
away from and then toward a position in line with the overlaying member, after the gripper has tensioned and released a portion of the upper, said gripper-operating mechanism and said gripper-oscillating mechanism being so relatively timed as to cause the gripper asit is moved toward the overlayingmember to seize another portion of the upper and to displace said portion in a direction lengthwise of the shoe and into alinement with the overlaying member, prior to operation of the gripper for tensioning said other portion of the upper. I Y
4. A lasting machine having, in. combination, a gripper and mechanism for operating the gripper to seize, tension and release portions of the upper of a shoe, successively, in different locations along the edge of the shoe bottom, an overlaying member operable, in time relation to the actions of said gripper, to lay the lasting margin of the tensioned upper in over, and to press it against, the shoe bottom in each location, and mechanism for oscillating said gripper lengthwise of the shoe, selectively, in eitherdirection, away from and then toward a position in line with the overlaying member, after the gripper has tensioned and released a portion of the up per, said gripper-operating mechanism and said gripper-oscillating mechanism being so relatively timed as to cause the gripper as it is moved toward the overlaying member to seize another portion of the upper and to displace said portion in a direction lengthwise or" the shoe and into alinement with the overlaying member, prior to operation of the gripper for tensioning said other portion of the upper.
5. A lasting machine having, in combination,
a gripper and mechanism for operating the gripper to seize, tension and release portions or the upper of a shoe, successively, in diiierent locations along the edge of the shoe bottom, an overlaying member operable, in time relation to the actions of said gripper, to lay the lasting margin of the tensioned upper in over, and to press it against, the shoe bottom in each location, and mechanism for oscillating the gripper lengthwise of the shoe, away from and then toward a position in line with the overlaying member, after the gripper has tensioned and released a portion of the upper and prior to operation of the gripper to tension another portion of the upper, said gripper-operating mechanism being also arranged to move the gripper laterally of the shoe, in time relation to the action'of said gripperoscillating mechanism, so as to cause the inner jaw of the gripper as it is moved toward the overlaying member to be inserted beneath the lasting margin of the upper closely adjacent to the location where said margin has been laid over, and pressed against, the shoe bottom.
6. A lasting machine having, in combination, a gripper and mechanism for operating the gripper to seize, tension and release portions of the upper of a shoe, successively, in different locations along the edge of the shoe bottom, an overlaying member operable, in time relation to the actions of said gripper, to lay the lasting margin 1 of the tensioned upper in over, and to press it against, the shoe bottom in each location, and mechanism for oscillating the gripper lengthwise of the shoe, selectively, in either direction, away from and then toward a position in line with the overlaying member, after the gripper has tensioned and released a portion of the upper and prior to operation of the gripper to tension another portion of the upper, said gripper-opcratingmechanismbeing also arranged to move the gripper laterally of the shoe,-in-time relation to the action-ofsaid gripper-oscillating mechanism, soas to'caus'e;the-innenjaw of the gripper, as it is moved towardthe overlaying member, to be inserted be'neaththe lasting-margin of the upper closely adjacent to thelocatioi1 where said margin has; been laid 'over,- and pressed against,-the'shoe bottom v 7. A lastingmachinehaving; in combination, a gripper and mechanism for operatingthe'gripper to seize tension andrelease portions ofthe upper-of a shoe, successively; in different locations along the edgeoi' the-shoe bottom, an overlayingmember operable; in time relatiori -to the actions'of said gripprto lay the la'stingmargin of, the tensioned'upper in over, and to press it against, the shoe bottom iii-each location; and mechanism for oscillating' thegripper -lengthme of the shoe away'from and then-toward-a position-in line with the overlayingmember, "after the gripper has tensioned and released a portion of the upper; and-prior to operation of the gripper to tension another'portion ofthe-upper, said gripper-operating mechanism also-being arranged to move the gripper downwardly and laterally ofthegsh'oe, in time relation to the actionof said gripper-oscillating mechanism, so as 'to cause the 'innerjaw' of the gripper asit is moved toward theoverlayingmember to *be inserted beneath the lasting margin of theupper closely adjacent to the location 'WhGI'G'SQid margin has been laid over, and pressed -against;-the shoe bottom,
8. A lasting machine having; in combination, a gripper and mechanism for operating'the gripper to seize tensionand release portions-of the upper of a shoe, successively-in-difierent locations along the edge of the shoebottom, an overlaying member operable, in time relation to the actions of said gripper, to lay the lasting-margin of the tensioned upper in ever, and to press it against, the shoe bottom in each location, and mechanism fQr oscilIating the gripperlengthwise of the shoe, selectively, injeither direction, away {remand then toward a position in linewith the overlaying member, after the gripper has tensioned, and released; a portion of the Y upper and prior to. operationof;thegripperto tension another portion of the upper, saidgripper-operating mechanism also being arranged to move the gripper downwardly and laterallyof the shoe; in t me relation to the actions of said gripper-operating mechanism, so as to cause theinner jaw-oi the gripper as it is moved toward the overlaying member to be inserted beneath the lasting margin of the upper closely adjacent to the location where said margin has been laidover, and pressed against, the shoe bottom.- r
9. A lasting machine having-,-in combination, agripper and mechanism-ioropera'ting the gripperto seize, tension and release portions of the upper of-a shoe, successively, -indifierentlccations along the edge of the shoe'bottom,-an overlaying member operable; in time relation to the actions of said gripper, to lay the lasting margin of the tensioned upper in over, and to press it against, the shoe bottom in eachlocation; and mechanism for oscillating the gripper-lengthwise of the shoe, away fromand then toward a position in line with the overlaying member,- after the gripper has tensioned and released a portion of the upper, said gripper-operating,mechanism also bei arranged to 'move the gripper-flownwardly toward the shoe bottom and laterally toof the-upper.
gin has been laid over, and pressed against the shoe bottom, and said gripper-operating -mechanism and said gripper-oscillating mechanism being so relatively timed as to cause the gripper to be returned substantiallyto a position in line with the overlaying means prior to tensioni'ng another portion of the upper.--
10. A lasting machine having, in combination, a gripper and mechanism for operating the gripper to seize, tension and release portions of the upper of a shoe, successively, in different locations along the edge of the shoe bottom, an overlaying member operable, inj time relation to the actions of said gripper, to lay the lasting margin of theetensioned upper-in over, and to press it against-the shoe bottom ineach location, the mechanism for oscillating the gripper lengthwise of the shoe, selectively, in either directioriaway from and then toward'a position in'line with' the overlaying memberpafter the gripperhas' tensioned and'released a portion-of theupper; said gripper-operating -'me'chanism- 'being also -'ar ranged to move the gripper downwardly toward the shoe bottomand laterally towardftheedge of the shoe, in time relationtothe action of said gripper-oscillatingmechanism; so as to ca-use the inner jaw of the gripperyasit is moved toward the overlaying membeiflto be insertedfbeneath the lasting-margin of the upper closely adjacent to the location where-said margin hasbee'n laid over, and pressed a-ga'inst,the shoe'bottom; and
said g ipper-operating mechanism and said griper-oscillating "mechanism being --so' relatively timed as to cause thegripper to-be returnedsubstantially'. to a position in linewith the overlaying member prior to ten'sio'n'ing-another portion 11. A lasting machine :having, in I combination, a gripper andmech'anism'ior operating' the gripper to-seize, tension and-release aportion of the upper of a shoe, anbverlayingmember operable in time relation to the actl'on"of -the"gripper; to lay the lasting margirrof the tensioned'uppfirin "over, and to press it; against; the bottom'of the shoe, means for feeding the shoe intermittently "to present dififerent portions' ,of theupperfsuc- 'cessively,;tothe actions of-the gripper and the overlaying memberfand mechanism forjoscillating said gripper lengthwise'of theshoe, away from and then toward-a position in line with the overlaying member," after the gripper has tensioned and releaseda' po'itioriof the upper, said r pp rpe at ng me hanism'a d said i p oscillating mechanism being. so relatively timed as to cause thegripper to be returned 'subStan 'tially to' a position in line with the overlaying member prior to .te'nsion'ingi another portionof the upper and *saidifeedingnieans being adapted to fe d ,t eLs o infh op osi e di ecti n, whe e r pper s m v ng away fr m he overlayin m b a d to old he shoe a ainst v mie'rit in the direction of'feed'when said gripperismoving toward the overlaying. member;
1 A gm ne-havinai ncombination agripperandmechanismior fperating the'fgrirwv per to seize,tension-andgreleaseapoiftion of the upper of ashoe, an overlaying rnemben operable in time relation" to-the action gig-the gripper, to lay the Blasting margin of the tensioned upper in over, and topress it against, the bottomof the lengthwise of the shoe, selectively, in either direction away from and then toward a position in line with the overlaying member, after the gripper has tensioned and released a portion of the upper, said gripper-operating mechanism and said gripper-oscillating mechanism being so relatively timed as to cause the gripper to be returned substantially to a position in line with the overlaying member prior to tensioning another portion of the upper and said feeding means being adapted to ieed the shoe, in the opposite direction, when the gripper is moving away from the overlaying member and to, hold'the shoe against movement in the direction of feed when said gripper is moving toward the overlaying member.
13. A lasting machine having, in combination, a gripper and mechanism for operating the gripper to seize, tension and release a portion of the upper of a shoe, an overlaying member operable in time relation to the action of the gripper, to lay the lasting margin of the tensioned upper in over, and to press it against, the bottom of the shoe, means for feeding the shoe intermittently to present different portions of the upper, successively, to the actions of the gripper and the overlaying member, and mechanism for oscillating said gripper lengthwise of the shoe, away from and then toward a position in line with the overlaying member, after the gripper has tensioned and released-a portion of the upper, said gripperoperating mechanism and said gripper-oscillating mechanism being so relatively timed as to cause the gripper as it is moved toward the overlaying member to seize another portion of the upper and to displace it in a direction lengthwise of the shoe'and into alinement with said overlaying member, prior to the operation of the gripper for tensioning said other portion of the upper and said feeding means being adapted to. feed the shoe, in the opposite direction,-when the gripper is moving away from the overlaying member and to hold the shoe against movement in the direction offeed when the gripper is moving toward the overlaying member and is displacing said portion of the upper.
14. A lasting machine having, in combination, a gripper and mechanism for operating the gripper to seize, tension and release a portion of the upper of a shoe, an overlaying member operable in time relation to the action of the gripper, to lay the lasting margin of the tensioned upper in over, and to press it against, the bottom of the shoe, means for selectively feeding the shoe, in either direction, intermittently to present different portions of the upper, successively, to the actions of the gripper and the overlaying member, and mechanism for oscillating said gripper lengthwise of the shoe, selectively, in either direction away from and then toward a position in line with the overlaying member, after the gripper has tensioned and released a portion of the upper, said gripper-operating mechanism and said gripper-oscillating mechanism being so relatively timed as to cause the gripper as it is moved toward the overlaying member to seize another portion of the upper and to space it in a direction lengthwise of the shoe, and into alinement with said overlaying member, prior to operation of the gripper for tensioning said other portion of the upper and said feeding means being adapted to feed the shoe, in the other direction, when the gripper is moving away from the overlaying member and to hold the shoe against movement in the direction of feed when the gripper is moving toward the overlaying member and is displacing said portion of the upper. 7
15. A lasting machine having, in combination, a gripper and mechanism for operating the gripper to seize, tension and release a portion of the upper of a shoe, an overlaying member operable in timed relation to the action of the gripper to lay the lasting margin of the tensioned upper in over, and press it against the bottom of the shoe, means for feeding the shoe intermittently to present different portions of the upper, successively to the actions of the gripper and the overlaying member, and mechanism for oscillating the gripper lengthwise of the shoe, away from and then toward a position in line with the overlaying member, after the gripper has tensioned and released a portion of the upper, said gripper operating mechanism being also arranged to move the gripper laterally of the shoe, in time relation to the action of the gripper oscillating mechanism, so as to cause the inner jaw of the gripper as it is moved toward the overlaying member to be inserted beneath the lasting margin of the upper closely adjacent to the location where said margin has been laid over, and pressed against, the shoe bottom and said feeding means being adapted to feed the shoe, in the opposite direction, when the gripper is moving away from the overlaying member and to hold the shoe against movement in the direction of feed when the gripper is moving toward the overlaying member.
16. A lasting machine having, in combination, a gripper and mechanism for operating the gripper to seize, tension and release a portion of the upper of a shoe, an overlaying member operable in timed relation 'to the action of the gripper to lay the lasting margin of the tensioned upper in over, and to press it against, the bottom of the shoe, means for selectively feeding the shoe, in either direction, intermittently to present different portions of the upper, successively to the actions of the gripper and the overlaying member,
and mechanism for oscillating the gripper lengthwise. of the shoe, selectively, in either direction away from and then towardaposition in line with the overlaying member, after the gripper has tensioned and released a portionof the upper, said gripper operating mechanism-being also arranged to move the gripper laterally of the shoe, in time relation to the action of said gripper oscillating mechanism, so as to cause'the inner jaw of the gripper as it is moved toward the overlaying member to be inserted beneath the-lasting margin of the upper closely adjacent to-the location where said margin has been laid over, and pressed against, the shoe bottom and said feeding means being adapted to feed the shoe in the opposite direction, when the gripper is moving away from the overlaying member and to hold the shoe against movement in the direction of feed when the gripper is moving toward the overlaying member. 7 r
17. A lasting machine having, in combination, a-gripper mechanism foroperating the gripper to seize, tension and release-a portion of the upper of a shoe, an overlaying member operable in timed relation to the action of the gripper, to lay the lasting margin of the tensioned upper in over, and to press it' against', the bottom of the shoe, means for feeding the shoe intermittently to present differentportions of. the upper, ;suc.- cessively, to the. actions of the gripperandthe overlaying member, and. mechanism for oscillating the gripper lengthwise of the shoe, awayfrom and then .toward a .positionin linewith the overlaying membeni. after the; gripper has tensioned and released a. portion. of: the upper, said. gripper operating mechanism .sbeing. also .arranged to move the gripper downwardly toward the shoe bottom and laterally toward the; edge :of the shoe, in time relation to theraction of the gripper operating mechanism, so asto cause. the inner jaw of the gripper as it is .moved towardthe overlaying member. to be; inserted. beneath. the zlasting margin of the upper closelyadjacentto the location where said margin -has been:laid -.over,-. and pressedagainst the :shoe bottom, and saidgripper operating mechanism and said gripper oscillating mechanism being so. relatively timed as to cause the gripper to be returned substantially to a position in line with theoverlaying means prior to tensioning another portion of the upper, and said feeding meansbeing adaptedto feed the shoe, in the opposite direction, when the gripperis moving away from the overlaying member" and to hold the shoe against movementdn the direction of feed when the gripper is movingtoward the overlaying member. .1. 18. A lasting machine having,.in combination, a gripper and mechanism for operating the gripper to seize, tension and release a portion of the upper of a shoe, an overlaying member operable in timed relation to the action of the gripper to lay the lasting margin of the tensioned upper in over, and to press it against, the bottom of the shoe, means for selectively feeding the shoe, in either direction, intermittently to present different portions of the upper, successively, to the actions of the gripper and the overlaying member, and mechanism for oscillating said gripper lengthwise of the shoe, selectively, in either direction, away from and then toward a position in line with the overlaying member, after the gripper has tensioned and released a portion of the upper, said gripper operating mechanism being also arranged to move the gripper downwardly toward the bottom of the shoe and laterally toward the edge of the shoe, in timed relation to the action of said gripper oscillating mechanism, so as to cause the inner jaw of the gripper as it is moved toward the overlaying member to be inserted beneath the lasting margin of the upper closely adjacent to the location where said margin has been laid over, and pressed against, the shoe bottom, said gripper operating mechanism and said gripper oscillating mechanism being so relatively timed as to cause the gripper to be returned substantially to a position in line with the overlaying member prior to tensioning another portion of the upper and said feeding means being adapted to feed the shoe, in the opposite direction when the gripper is moving away from the overlaying member and to hold the shoe against movement in the direction of feed when the gripper is moving toward the overlaying member.
19. A lasting machine having, in combination, a gripper for seizing, tensioning and releasing portions of the upper of a shoe, successively, in different locations along the edge of the shoe bottom, an overlaying member and mechanism for operating the overlaying member, in time relation to the action of said gripper, to lay the lasting margin of the tensioned upper in over, and to press it against, the bottom of the shoe in 22: each location, said.v overlaying: .memben. being arranged to move-along a path inclined down-. wardlyztoward.thebottom of the shoeand having an operating face. disposed at an angle. to said pathand substantially parallel to the. plane of thebottomof the shoe and said operating mechanism. being adapted to cause .theoverlaying member first to move toward the shoe bottom during a portion of, the tensioning action of the gripper, then to pause .while. thetensioning action is completed, andfinally tolay'the lasting margin in, over, and to press it against, .thebottom of the shoe as the upper is releasedby the. gripper.
1 v 20-. ;A lasting machine having, in combination, a. gripper for seizing updrawing, overdrawing and then releasing portions of the upper of a shoe, successively, in difierent locations alongthe edge ofthe shoe bottom, an overlaying member, and mechanism for -,;-operating the overlaying member, in time relation-to the-actionof said gripper, to lay thelasiting margin, of the tensioned upper in over, and t oi press itagainst, the bottom 1 of the shoe in'each location, said operating mechanism being adapted to cause the overlaying member first to move toward the shoebottom, during a portion'ofj'the updraw, next to pause while theupdraw is'completed, then to continue movement toward the shoe bottom during the overdraw and finally to lay the lasting margin in over, and to press it against, the bottom of the shoe as the upper is released by the gripper.
21. A lasting machine having, in combination, a gripper for. seizing, updrawing, overdrawing and then releasing portions of the upper of a shoe, successively, in different locations along the edge of the shoe bottom, an overlaying member and mechanism for operating the overlaying member, in time relation to the actions of said gripper, to lay the lasting margin of the tensioned upper in over, and to press it against, the bottom of the shoe in each location, said overlaying member being arranged to move along a path inclined downwardly toward the bottom of the shoe and having an operating face disposed at an angle to said path and substantially parallel to the plane of the bottom of the shoe and said operating mechanism being adapted to cause the overlaying member first to move toward the shoe bottom, during a portion of the updraw, next to pause while the updraw is completed, then to continue movement toward the shoe bottom during the overdraw and finally to lay the lasting margin in over, and to press it against, the bottom of the shoe as the upper is released by the gripper.
22. A lastin machine having, in combination, means for tensioning portions of the upper of a shoe, successively, in different locations along the edge of the shoe bottom, an overlaying member operating, in time relation to said tensioning means, to lay the lasting margin of the tensioned upper in over, and to press it against, the bottom of the shoe in each location, and a hammer carried by the overlaying member and adapted to strike the lasting margin a. sharp blow. after said lasting margin has been pressed against the shoe bottom by the overlaying member, said hammer being mounted for universal movement about axes extending widthwise and lengthwise of the shoe bottom so as to strike said lasting margin squarely and evenly regardless of lengthwise and widthwise curvatures of the shoe bottom.
23. A lasting machine having, in combination, means for tensioning portions of the upper of a shoe, successively, in different locations along the the shoe in each location, said overlaying member being arranged 'toxmove along apath that is inclined downwardly toward the shoe bottom and having an operating surface disposed at an angle to said path and substantially parallel to'the plane of the shoe-bottom,'and a self-levelling hammer carried by the overlaying member and adapted to be projected through an opening in said operating surface and against the lasting margin "after said margin has been pressed against the shoe bottom by the overlaying member.
24. A lasting machine having, in combination, means for tensioning portions of the upper of a shoe, successively, in different locations along the edge of the shoe bottom, a 'member operating in time relation to'the action of said tensioning means for pressing a narrow area of the upper against the bottom of the shoe in each location, and means for selectively feeding the shoe, in either direction, intermittently to present different portions of the upper to the actions of the tensioning means and the pressing member, said feedin means being constructed and arranged 241 to impart *fee'ding movementsto the shoe, in either direction, of a linear extentless than the width of the areas acted on by the pressing means. ,f
25. A lasting machine having, in combination, means for tensioning portions of the upper of a shoe,..suc'cessively, in different locations along the edge of the shoe bottom, a hammer operating in time relation to the action of said tensioning means for applying a blow to a narrow area of the upper in each location, and means for selectively feeding the shoe, in either direction, intermittently to present different portions of the upperto the. actions of theatensioning means and the hammer, said feeding means being constructed and arranged to impart feeding movements to' the shoe of a linear extent less than the width of the areas acted on by the hammer.
- ERNEST L. BUTLER,
'ANDREW EPPLER, JR.
' REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS
US95598A 1949-05-27 1949-05-27 Lasting machine Expired - Lifetime US2604645A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1060967A (en) * 1912-07-18 1913-05-06 United Shoe Machinery Ab Lasting-machine.
US2431362A (en) * 1946-06-28 1947-11-25 United Shoe Machinery Corp Lasting machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1060967A (en) * 1912-07-18 1913-05-06 United Shoe Machinery Ab Lasting-machine.
US2431362A (en) * 1946-06-28 1947-11-25 United Shoe Machinery Corp Lasting machine

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