US2739323A - Lasting machines - Google Patents

Lasting machines Download PDF

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Publication number
US2739323A
US2739323A US470037A US47003754A US2739323A US 2739323 A US2739323 A US 2739323A US 470037 A US470037 A US 470037A US 47003754 A US47003754 A US 47003754A US 2739323 A US2739323 A US 2739323A
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Prior art keywords
shoe
wipers
flexible
insole
wiper
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US470037A
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Jorgensen Bernhardt
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United Shoe Machinery Corp
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United Shoe Machinery Corp
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Priority to US470037A priority Critical patent/US2739323A/en
Priority to ES0225106A priority patent/ES225106A1/en
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00—Lasting machines
    • A43D21/16—Lasting machines with lasting pincers and toe- or heel-embracing wipers
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00—Lasting machines
    • A43D21/12—Lasting machines with lasting clamps, shoe-shaped clamps, pincers, wipers, stretching straps or the like for forming the toe or heel parts of the last
    • A43D21/125—Lasting 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
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00—Lasting machines
    • A43D21/18—Lasting machines with lasting pincers and straight-acting wipers, also for forming the shank portions of shoes

Definitions

  • the machine shown in the aforementioned patent is intended for use in lasting the opposite sides of the ball portions of shoes extending from the toe portions to the shank portions and includes a pair of grippers for seizing and pulling the upper at opposite sides of the ball portion of each shoe, respectively, together with means for therealter wiping the marginal portion of the upper inwardly over an insole on the last into position to adhere to the insole through the action of cement.
  • the wiping means of the prior machine comprises a pair of wipers for operating on each side or" the shoe, these wipers being relatively movable in directions extending lengthwise or" the shoe, as is explained in the mentioned patent, and including a relatively thin wiper made of resiliently flexible metal tor engaging the upper in locations where the bottom of the shoe curves heightwise of the shoe toward the shank portion beyond the ball line.
  • These flexible wipers are formed with normal curvature approximating that of the corresponding portions of the bottom of the shoe, and to render them more effective in wiping the upper inwardly for pressing it against the insole, the machine of the prior patent is provided with fluid pressure operated means for automatically bending these wipers heightwise of the shoe toward the shoe bottom in predetermined time relation to their inward wiping movements.
  • the aforementioned bending action is timed to occur only after the wiping edges of the wipers have passed beyond the extreme edge of the insole, this timing being effected by adjustable nuts and stop members which are associated with latches that control the operation of fluid actuated pistons.
  • the machine of the prior patent is also provided with members for engaging the opposite sides of a shoe presented to the machine, these members being operable to position the shoe widthwise in the machine in proper relation to the lasting instrumentalities.
  • These positioning members while serving to locate the forepart of the shoe in a centered position, r latively to the lasting instrumentalities, as is disclosed more in detail in Patent No. 2,663,637, granted on December 22, 1953, on an application tiled in my name, are so constructed that the shank portions of shoes presented to the machine may assume different widthwise positions unless the operator exercises extreme care in presenting the shoe to the machine. Also, with shoes of different sizes, the extreme edge of the insole at the opposite sides of the shoe will, of course, assume different positions widthwise of the machine.
  • the present invention in one aspect, provides improved means for controlling the action of the flexible wiper bending means in such a way that the flexible wipers are rendered more effective to wipe the upper inwardly over the insole.
  • the means for tripping the mentioned latches which control the operation of the fluid actuated pistons for bending the flexible wipers on the opposite sides of the shoe each comprises a rod carrying an adjusting nut which, as the wiper moves inwardly, is brought into engagement with a stop abutment.
  • abutments are each mounted for movement in a direction extending widthwise of the shoe by means of a direct connection with the shoe engaging positioning member on that side of the shoe so that it assumes a position which is determined by the shoe itself.
  • the adg'ustable nuts may be so positinned their rods that the bending of the wipers occurs exactly at the proper time in the inward movement of the wipers and this relationship will be maintained with all sizes of shoes and regardless of how the shoes are presented to the machine by the operator.
  • each of the flexible wipers comprises two resiliently flexible metal plates arranged in overlapping relation, one of these plates being secured at its outer edge to the wiper carrying arm on that side of the machine, while the other wiper plate is mounted on a block which is adapted to be moved heightwise of the shoe by f the fluid operated wiper bending piston.
  • Each of these wiper plate supporting blocks is so connected to the associated wiper carrying arm by articulated members as to be free to rock about two axes extending generally widthwise and spaced apart lengthwise of a shoe in the machine, While being positively restrained against movement in directions extending lengthwise and widthwise of the shoe.
  • Pivotally and slidably connected to these two wiper supporting blocks is a control member which extends widthwise across the shank portion of the shoe.
  • this controlling member When these blocks are moved heightwise toward the bottom of the shoe by the fluid operated wiper bending pistons, this controlling member will be brought into engagement with the bottom of the shoe in the shank portion thereof in a location toward the heel end of the shoe and will thereby serve to limit the extent of heightwise movement of each of these blocks and the heelward end of the wiper mounted thereon in accordance with the heightwise position of the lasting margin of the upper previously secured in lasted position on that side of the shoe.
  • Fig. 1 is a plan view of a portion of a. lasting machine embodying the features of this invention
  • Fig. 2 is a view in end elevation and at an enlarged scaleof one of the wiping units forming a part of the machine;
  • Fig. 3 is a view in side elevation showing a part of the wiping unit illustrated in Fig. 2;
  • Fig. 4 iso View in section, substantially on line IV1V of Fig. 3 and looking in the direction of the arrows;
  • Fig. 5 is a view in perspective of one of the wiping units of the machine
  • Fig. 6 is a view in end elevation of a control mecha nism associated with one of the wiping units.
  • Fig. 7 is a view in end elevation showing portions of the two wiping units in positions assumed during a final stage in the operation of the machine.
  • Fig. 1 the features of the present invention are shown as embodied in a lasting machine of the same general construction as the machine illustrated in Patent No. 2,665,436, referred to above, and only so much of the lasting machine construction is illustrated as is deemed necessary for an understanding of the invention.
  • the herein illustrated machine has a pair of wiping units each of which is associated with an arm which is mounted on a fixed shaft 22 for pivotal movement to eifect operation of Wiping means carried by the arm, such pivotal movements of these arms being efiected by fluid pressure operated pistons, not shown, in the manner explained in the mentioned patent, these pistons being arranged to engage anti-friction rollers 24 carried by the two arms.
  • Each wiper plate 40 is secured to a supporting member 44 which is slidably mounted on the upper side of one of the plates 30 and has connected thereto an operating link 46.
  • These-links are, in turn, connected to mechanism, not shown, for positioning the forepart wipers lengthwise of a shoe presented to the machine.
  • a resiliently flexible wiper 52 Also secured to each of the plates 30, by means of a clamping member 48 and screws 50, is a resiliently flexible wiper 52, these flexible wipers corresponding to the so-called additional wipers 178 of the machine of Patent No. 2,665,436, and each having a portion 0 arranged to lie between the bottom or" the shoe and the resilient blade 42 and another portion b which extends heelwardly and overlaps a resilient flexible shank wiper 60.
  • Each of the shank wipers is generally L-shaped in cross section, see Fig.
  • Each of the blocks 62 is pivotally mounted, on the end nearest to the toe end of a shoe, on a triangularly shaped plate 80 by means of'a trunnion pin 82, and each of these plates is likewise pivotally mounted, on the end nearest to the heel end of the shoe, by means of a stub shaft 84 which is journalled in a bearing member 86, these bearing members being secured, respectively, to heating units 88 which are carried on the outer ends of the plates 30.
  • a coil spring 90 interposed between one end of each tends to hold each plate yieldingly against the opposite end of its associated bearing member.
  • each of the arms 20 Mounted on the end of each of the arms 20 is a bracket member having formed integrally therewith a cylinder 102 to which there is connected a conduit 103, Figs. 1 and 2. Fitted in each of these cylinders is a piston 104 and extending outwardly from each piston 104 is a connecting rod 106 which passes through a latch plate 108 and a trunnion block 110. interposed between each latch plate and its associated trunnion block is a coil spring 111 which tends to hold the plate 103 against the end of the cylinder 102.
  • a pin 112 extends through each piston 104 and projects outwardly through a slot 114 in the cylinder 102 and a coil spring 116 normally holds the piston in the position illustrated in Fig.
  • each of the trunnion blocks is mounted in one arm of a bell-crank lever 120 which is fulcrumed on a shaft 122 supported in the bracket member 100.
  • a swivel block 124 Connected to the other arm of the bell crank lever 120, by means of a swivel block 124, is the upper end of a thrust rod 126.
  • the lower end ofeach thrust rod 126 is shaped to fit into a spherically shaped recess 128 formed in the block 62 and is held in place by a retaining pin 130, see Fig. 4.
  • each of the bracket members 100 Pivotally mounted on each of the bracket members 100 is a latch member which is provided with a notch for engaging one side of the latch plate 103 when the latch is in the position in which it is shown in Fig. l of the drawings.
  • a control rod 152 which extends outwardly through a clearance hole in a stop member 154 and has threaded on its outer end a nut 155, Figs. 1 and 6.
  • a coil spring 158 interposed between a fork memher 156, by means of which each rod is connected to its associated latch, and the stop member 154 is a coil spring 158 which normally holds the latch in engagement with the latch plate.
  • Each of the stop members 154 is secured to a block 160 which is mounted for rectilinear movement, by means of rollers 162, 162, on a supporting member 164, fastened to a portion 166 of the frame of the machine by means of a screw 168.
  • Extending downwardly from each of the blocks 160 is a stud 170 to which is connected the outer end of a link 172.
  • Each of the arms 132 carries a shoe positioning member comprising a shoe engaging pad 184 supported at each end by a swivel block 186 which is mounted on an equalizing lever 188, pivotally connected to the arm 132.
  • These arms are connected together by means of gear teeth 190, and are swung toward each other to bring the shoe engaging pads 184, 184into engagement with the opposite sides of a shoe presented to the machine by mechanism, not shown, which is similar to that provided in the machine of Patent No. 2,663,037, referred to above, the arms 182, 182 corresponding to the arms 100, 100 of that prior machine.
  • Each of the links 172 is connected at its inner end to one of the equalizing levers 188 in a location close to the heelward endof the pad 184.
  • a shoe bottom engaging member indicated generally by the reference character 206.
  • This member comprises two parallel rods 208, 208 which are connected together at their adjacent ends by means of end members 210, 210.
  • a coil spring 216 Stretched between each of these end members and a screw 212, associated with a portion 214 of the machine frame, is a coil spring 216, these springs tending to hold the shoe bottom engaging bearing member 86 and a washer 92 on the stub shaft, 75 member. 206 in a centered position.
  • the nuts 155, 155 are so adjusted on the rods 158, 1:13 that these pistons are released just as the portions a and b of each wiper 52 pass inwardly beyond the extreme marginal edge of the insole of the shoe at the ball portion thereof, the leading edges of the wipers 6t 6t) at this stage in the operating cycle being disposed somewhat outwardly beyond the marginal edges of the insole on the opposite sides of the downwardly curving shank portion of the shoe.
  • the stop members 154 are caused to assume positions determined by the shoe, the de ed time relationship of the release of the pistons 184, a will be maintained with all sizes of shoes and regardless of how'the shoes are presented to the machine by the operator.
  • the blocks 62, 62 are moved toward the bottom of the shoe by the thrust rods 326, 126, such movement of these blocks being limited by the engagement of the member 29-3 with previously lasted portions of the upper in the shank portion of the shoe, this member assuming a position similar to that shown in Fig. 7 of the drawings.
  • the member 2&6 is so related to the blocks 62, '2, by the location of the studs 233i), that the leading edges of the wipers in Fig. 4. at the heelward ends 6 3, e of these wipers, are brought substantially to the same level as the extreme outer edges of the insole at the opposite sides of the shoe in these locations.
  • the blocks 52, d2 swing about the axes of the trunnion pins 83.
  • the plates 8Q swing about the axes of the shafts 34, (id thereby bending the heelward ends of the wipers 52, 52 to the extent permitted by the engagement of the portions b of the wipers 52, 5'2 with the bottom of the shoe.
  • the blocks 52,, 62 are free to articulate about the trunnion pins 82, 82 and/or the shafts 8d, 34- so that the wipers 5'2, 5 are bent into substantial conformity with that portion f the shoe bottom which curves downwardly toward the shank just beyond the ball line and the wipers so, at: are caused to press firmly and evenly against the upper in the shank portion of the shoe heelv/ardly of the wipers 52, 52, the parts eventually reach ing the positions shown in Fig. 7, asthe inward wiping action is co; pleted. During the inward movements of the wipers these wipers are free to conform to the shape of the bottom of the shoe by bending upwardly against the resistance of the spring-pressed pins 74-, '74.
  • the extreme bending action required to bring the wipers 60 into engagement with the upper in the shank portion of the shoe is effected without subjecting the flexible wipers 52, 52 to undue stress which might eventually cause them to break and a substantial portion of the outward thrust on the flexible wipers is sustained by the blocks 62, 62 which are connected directly to the plates 30, 36 carried by the arms 26, 20.
  • wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward its shank portion, means for moving all said wipers inwardly Widthwise of the shoe thus to wipe the upper over the insole, means for bending the heelwardly extending portions of the flexible wipers heightwise of the shoe into conformity to the lengthwise contour of the bottom of the shoe, a stop member for controlling the operation of the bending means associated with the flexible wiper on each side of the shoe, and means for varying the positions of said stop members in accordance with the lateral position of the shoe in the machine.
  • a pair of clamping members movable, respectively, into engagement with the opposite sides of a shoe presented to the machine to position the shoe laterally in the machine, wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides or" the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations wherethe bottom of the shoe curves heightwise from the ball line toward its shank portion, means for moving all said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means for bending the heelwardly extending portions of the flexible wipers heightwise of the shoe, and means for controlling the operation of the bending means associated with the flexible wiper on each side of the shoe in accordance with the position assumed by the clamping member on that side of the shoe when it is moved into engagement with the shoe.
  • a pair of clamping members movable, respectively, into engagement with the opposite sides or" a shoe shoe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe'respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward its shank portion, means for moving all said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means for bending the heelwardly extending portions of the flexible wipers heightwise of the shoe, a stop member for controlling the operation of the bending means associated with the flexible wiper on each side of the shoe, and means for varying the positions of said stop members in accordance-with-the position presented to the machine to position the laterally in the machine, wipers arranged to wipe assumed by the clamping members when they are moved into
  • wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and-having portions extending toward the heel end of the shoe to act on the upper in.
  • wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward its shank portion, means for moving all said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means for bending the heelwardly extending portions of the flexible wipers heightwise of the shoe into conformity to the lengthwise contour of the bottom of the shoe, and means engageable with the bottom of the shoe for limiting the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by said bending means.
  • wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward its shank portion, means for moving all said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means for bending the heelwardly extending portions of the flexible wipers heightwise of the shoe into conformity to the lengthwise contour of the bottom of the shoe, and means common to both of said flexible wipers and engageable with the bottom of the shoe for limiting the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by said bending means.
  • wipers arranged to Wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward its shank portion,,means for moving all said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means for bending the heelwardly extending portions of the flexible wipers heightwise of the shoe into conformity to the lengthwise contour of the bottom of the shoe, and means comprising a member connected to the heelward end of each flexible wiper for engaging the shank portion of the bottom of the shoe to limit the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by the bending means.
  • wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last, at the opposite sides of theball '8 Portion, of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curvesheightwise from the ball line toward its shank portion, means for moving all said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means for bending the heelwardly extending portions of the flexible wipers heightwise of the shoe into conformity to the lengthwise contour of the bottom of the shoe, and means comprising a member pivotally and slidingly connected to the heelward end of each flexible Wiper for engaging-the shank portion of the bottom of the shoeto limit the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by the bending means.
  • wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoerespectively, additional resiliently flexible wipers partially overlapped by said firstnamed wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curvesheightwise from the ball line toward its shank portion, means for moving all said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means for bending the heelwardly extending portions of the flexible wipers heightwise of the shoe into conformity to the lengthwise contour of the bottom of the shoe, and means comprising a rod connected to the heelward end of each flexible wiper for engaging the shank portion of the bottom of the shoe to limit the extent to which the heelward end of each of the flexi lc wipers is moved toward the bottom of the shoe by the bending means.
  • wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward its shank portion, means for moving all said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means for bending the heel wardly extending portions of the flexible wipers heightwise of the shoe into conformity to the lengthwise contour of the bottom of the shoe, and means comprising a rod pivotally and slidingly connected to the heelward end of each flexible wiper for engaging the shank portion of the bottom of the shoe to limit the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by the bending means.
  • wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said firstnamed wipers and having portions extending toward the heel: end of the shoe to acton the upper in locations where the bottom of the shoe curves heightwise from the ball line toward the-shank portion of the shoe, said additional wipers each including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its'shank portion, means for moving all of said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means associated with the heelward end of each of the additional flexible wipers for bending these wipers into conformity to the lengthwise contour of the bottom of the shoe, and means for limiting the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by said
  • wipers arranged to wipe the marginal. portion of the upper of a shoe on a. last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward the shank portion of the shoe, said additional wipers each including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its shank portion, means for moving all of said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means associated with the heelward end of each of the additional flexible wipers for bending these wipers into conformity to the lengthwise contour of the bottom of the shoe, and means common to both of said flexible wipers for limiting the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of
  • wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward the shank portion of the shoe, said additional wipers each including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its shank portion, means for moving all of said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means associated with the heelward end of each of the additional flexible wipers for bending these wipers into conformity to the lengthwise contour of the bottom of the shoe, and means engageable with the bottom of the shoe for limiting the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by
  • wipers arranged to wipe the marginal portion or" the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to acton the upper in locations where the bottom of the shoe curves heightwise from the ball line toward the shank portion of the shoe, said additional wipers each including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its shank portion, means for moving all of said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means associated with the heelward end of each of the additional flexible wipers for bending these wipers into conformity to the lengthwise contour of the bottom of the shoe, and means common to both of said flexible wipers and engageable with the bottom of the shoe for limiting the extent to which the heelward end of each of the flexible wipe
  • wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said firshnamed wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward the shank portion of the shoe, said additional wipers each including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its shank portion, means for moving all of said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means associated with the heelward end of wipers into conformity to the lengthwise contour of the bottom of the shoe, and means comprising a member connected to the heelward end of each flexible wiper for engaging the shank portion of the bottom of the shoe to limit the extent to which the heelward end of each of the flexible wipers
  • wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward the shank portion of the shoe,
  • said additional wipers each including a pair of resiliently I flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its shank portion, means for moving all of said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means associated with the heelward end of each of the additional flexible wipers for bending these wipers into conformity to the lengthwise contour of the bottom of the shoe, and means comprising a member pivotally and slidingly connected to the heelward end of each flexible wiper for engaging the shank portion of the botto a of the shoe to limit the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by the bending means.
  • wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resilientiy flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward the shank portion of the shoe, said additional wipers each including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its shank portion, means for moving all of said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means associated withrthe heelward end of each of the additional flexible wipers for bending these wipers into conformity to the lengthwise contour of the bottom of the shoe, and means comprising a rod connected to the heelward end of each flexible wiper for engaging the shank portion of the bottom of the shoe to limit the extent to which the
  • wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward the shank portion of the shoe, said additional wipers each including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its shank portion, means for moving all of said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means associated with the heelward end of each of the additional flexible wipers for bending these wipers into conformity to the lengthwise contour of the bottom of the shoe, and means comprising a rod pivotally and sliding connected to the heelward end of each flexible wiper for engaging the shank portion of the bottom of the shoe to limit the extent
  • a pair of arms Wipers carried by each of said arms and arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible Wipers associated with said arms and partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward the shank portion of the shoe, said additional wipers each including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its shank portion, a block secured toeach of the two flexible plates which are nearest to the heel end of the shoe, means for operating said arms to move the wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means for supporting each of said blocks on its associated wiper carrying arm for pivotal movements in directions extending heightwise of the shoe, said mounting means each comprising
  • a wiper carrying arm a wiper carried by said arm and arranged to wipe the marginal portion of the upper of a shoe inwardly over an insole on the last at the ball portion of the shoe, an additional resiliently flexible wiper associated with said arm partially overlapped by said first-mentioned wiper and extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball portion toward the shank portion of the shoe, said additional Wiper including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its shank portion, a block secured to the flexible metal plate which is nearest to the heel end of the shoe, means for supporting the block on the wiper carrying arm for pivotal movements in directions extending heightwise of the shoe, and means for applying pressure to said block to cause the resilient meal plates to conform to the contour of the bottom of the shoe.
  • a wiper carrying arm a wiper carried by said arm and arranged to Wipe the marginal portion of the upper of a shoe inwardly over an insole on the last at the ball portion of the shoe, an additional resiliently flexible Wiper associated with said arm partially overlapped by said first-mentioned wiper and extendingtoward the heel end of the shoe to act on the upper in'locations where the bottom of the shoe curves heightwise from the ball portion toward the shank portion of the shoe
  • said additional wiper including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from theiball line of the shoe into its shank portion, a block secured to the flexible meal plate which is nearest to the heel end of the shoe, means for supporting the block on the wiper carrying arm for pivotal movements in directions extending heightwise of the shoe, said mounting means comprising a member pivotally connected at one end to the block and at its other end to the wiper carrying arm, and means for applying pressure to said block to cause the resilient metal plates to conform to

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Description

March 27, 1956 B. JORGENSEN 2,739,323
LASTING MACHINES Filed Nov. 19, 1954 3 Sheets-Sheet 1 In 12 en for Bernhardt Jorgensen By his Atzfom ey March 1956 B. JORGENSEN 2,739,323
LASTING MACHINES Filed Nov. 19, 1954 3 Sheets-Sheet 2 w 1% /04 (w 47 if 'i L L i 1'2 Invenfor Bernhardt Jor'gensen By his Azzorvzey March 27, 1956 JQRGENSEN Q 2,739,323
LASI'ING MACHINES Filed Nov. 19, 1954 3 Sheets-Sheet 5 In (/6 n z 0 r Bern}; ardz Jorgensel? By his Azfzorney LASTING MACHENE Bernhardt Jorgensen, Marblehead, Mass, assignor to United Shoe Machinery Corporation, corporation of New Jersey Application November 1%, 1554, Serial No. 47ll,037
22 illaims. (Cl. 12-42) This invention relates to lasting machines and is more particularly concerned with certain improvements in a lasting machine shown and described in United States Letters Patent No. 2,665,436, granted January 12, 1954, on an application filed in my name. Accordingl the invention is herein illustrated as embodied in a machine of that type but it is to be understood that in its various novel aspects the invention is not limited to the exact mechanical construction disclosed.
The machine shown in the aforementioned patent is intended for use in lasting the opposite sides of the ball portions of shoes extending from the toe portions to the shank portions and includes a pair of grippers for seizing and pulling the upper at opposite sides of the ball portion of each shoe, respectively, together with means for therealter wiping the marginal portion of the upper inwardly over an insole on the last into position to adhere to the insole through the action of cement. The wiping means of the prior machine comprises a pair of wipers for operating on each side or" the shoe, these wipers being relatively movable in directions extending lengthwise or" the shoe, as is explained in the mentioned patent, and including a relatively thin wiper made of resiliently flexible metal tor engaging the upper in locations where the bottom of the shoe curves heightwise of the shoe toward the shank portion beyond the ball line. These flexible wipers are formed with normal curvature approximating that of the corresponding portions of the bottom of the shoe, and to render them more effective in wiping the upper inwardly for pressing it against the insole, the machine of the prior patent is provided with fluid pressure operated means for automatically bending these wipers heightwise of the shoe toward the shoe bottom in predetermined time relation to their inward wiping movements. In order to avoid possible displacement or" the insole by the inwardly moving Wipers, the aforementioned bending action is timed to occur only after the wiping edges of the wipers have passed beyond the extreme edge of the insole, this timing being effected by adjustable nuts and stop members which are associated with latches that control the operation of fluid actuated pistons.
The machine of the prior patent is also provided with members for engaging the opposite sides of a shoe presented to the machine, these members being operable to position the shoe widthwise in the machine in proper relation to the lasting instrumentalities. These positioning members, while serving to locate the forepart of the shoe in a centered position, r latively to the lasting instrumentalities, as is disclosed more in detail in Patent No. 2,663,637, granted on December 22, 1953, on an application tiled in my name, are so constructed that the shank portions of shoes presented to the machine may assume different widthwise positions unless the operator exercises extreme care in presenting the shoe to the machine. Also, with shoes of different sizes, the extreme edge of the insole at the opposite sides of the shoe will, of course, assume different positions widthwise of the machine. Accordingly, it has been necessary to make allowance for Patented Mar. 27, 1956 these conditions by so setting the adjustable nuts referred to above that the flexible wipers are not bent downwardly until rather late in the operating cycle of the machine and Well after these wipers have moved inwardly beyond the edges of the insole. Thus a considerable portion of the inward wiping action of these wipers may be lost so that these wipers, in eflect, do little more than to press the upper against the insole in the shank portion of the shoe.
The present invention, in one aspect, provides improved means for controlling the action of the flexible wiper bending means in such a way that the flexible wipers are rendered more effective to wipe the upper inwardly over the insole. In the construction herein illustrated, is accomplished by providing means for controlling the action of the wiper bending pistons in accordance with the lateral, or widthwise, position of the shank portion of the shoe in the machine. More particularly, the means for tripping the mentioned latches which control the operation of the fluid actuated pistons for bending the flexible wipers on the opposite sides of the shoe each comprises a rod carrying an adjusting nut which, as the wiper moves inwardly, is brought into engagement with a stop abutment. These stop. abutments are each mounted for movement in a direction extending widthwise of the shoe by means of a direct connection with the shoe engaging positioning member on that side of the shoe so that it assumes a position which is determined by the shoe itself. Hence, the adg'ustable nuts may be so positinned their rods that the bending of the wipers occurs exactly at the proper time in the inward movement of the wipers and this relationship will be maintained with all sizes of shoes and regardless of how the shoes are presented to the machine by the operator.
This invention further provides means for improving the action of the flexible wipers by providing a novel flexible Wiper construction and by limiting the extent to which the heelward ends of these flexible wipers are moved toward the bottom of the shoe by the fluid operated bending means in accordance with the heightwise position of the bottom of the shank portion of the shoe on each side of the shoe. in the construction herein illustrated, each of the flexible wipers comprises two resiliently flexible metal plates arranged in overlapping relation, one of these plates being secured at its outer edge to the wiper carrying arm on that side of the machine, while the other wiper plate is mounted on a block which is adapted to be moved heightwise of the shoe by f the fluid operated wiper bending piston. Each of these wiper plate supporting blocks is so connected to the associated wiper carrying arm by articulated members as to be free to rock about two axes extending generally widthwise and spaced apart lengthwise of a shoe in the machine, While being positively restrained against movement in directions extending lengthwise and widthwise of the shoe. Pivotally and slidably connected to these two wiper supporting blocks is a control member which extends widthwise across the shank portion of the shoe. When these blocks are moved heightwise toward the bottom of the shoe by the fluid operated wiper bending pistons, this controlling member will be brought into engagement with the bottom of the shoe in the shank portion thereof in a location toward the heel end of the shoe and will thereby serve to limit the extent of heightwise movement of each of these blocks and the heelward end of the wiper mounted thereon in accordance with the heightwise position of the lasting margin of the upper previously secured in lasted position on that side of the shoe.
The above and other objects and features of the invention will appear in the following detailed description of 3 the preferred embodiment thereof which is illustrated in the accompanying drawings and will be pointed out in the claims.
In the drawings,
Fig. 1 is a plan view of a portion of a. lasting machine embodying the features of this invention;
Fig. 2 is a view in end elevation and at an enlarged scaleof one of the wiping units forming a part of the machine;
Fig. 3 is a view in side elevation showing a part of the wiping unit illustrated in Fig. 2;
Fig. 4 iso View in section, substantially on line IV1V of Fig. 3 and looking in the direction of the arrows;
Fig. 5 is a view in perspective of one of the wiping units of the machine;
Fig. 6 is a view in end elevation of a control mecha nism associated with one of the wiping units; and
Fig. 7 is a view in end elevation showing portions of the two wiping units in positions assumed during a final stage in the operation of the machine.
Referring to these drawings, and particularly to Fig. 1 thereof, the features of the present invention are shown as embodied in a lasting machine of the same general construction as the machine illustrated in Patent No. 2,665,436, referred to above, and only so much of the lasting machine construction is illustrated as is deemed necessary for an understanding of the invention. In common with the machine of the prior patent, the herein illustrated machine has a pair of wiping units each of which is associated with an arm which is mounted on a fixed shaft 22 for pivotal movement to eifect operation of Wiping means carried by the arm, such pivotal movements of these arms being efiected by fluid pressure operated pistons, not shown, in the manner explained in the mentioned patent, these pistons being arranged to engage anti-friction rollers 24 carried by the two arms. For equalizing the swinging movements of these arms they are connected together by gear teeth 26. Secured to each of these arms in spaced relation from the underneath side of the arm is a plate on which there is slidably supported a forepart wiper comprising a wiper plate and a resilient blade 42, Fig. 5. Each wiper plate 40 is secured to a supporting member 44 which is slidably mounted on the upper side of one of the plates 30 and has connected thereto an operating link 46. These-links are, in turn, connected to mechanism, not shown, for positioning the forepart wipers lengthwise of a shoe presented to the machine.
Also secured to each of the plates 30, by means of a clamping member 48 and screws 50, is a resiliently flexible wiper 52, these flexible wipers corresponding to the so-called additional wipers 178 of the machine of Patent No. 2,665,436, and each having a portion 0 arranged to lie between the bottom or" the shoe and the resilient blade 42 and another portion b which extends heelwardly and overlaps a resilient flexible shank wiper 60. Each of the shank wipers is generally L-shaped in cross section, see Fig. 4, and is removably secured to a supporting block 62 by means of a clamping plate 64 and'a screw 66, the clamping plate having a dowel pin 68 which passes through a clearance hold 70, formed in the wiper, and enters a bore 72 in the block. Plungers 74, 74, extending through the block 62 and backed up by compression springs 76, 76, see also Fig. 3, tend to hold the wiper in the position shown in Fig. 4. Each of the blocks 62 is pivotally mounted, on the end nearest to the toe end of a shoe, on a triangularly shaped plate 80 by means of'a trunnion pin 82, and each of these plates is likewise pivotally mounted, on the end nearest to the heel end of the shoe, by means of a stub shaft 84 which is journalled in a bearing member 86, these bearing members being secured, respectively, to heating units 88 which are carried on the outer ends of the plates 30. As shown in Fig. 2, a coil spring 90, interposed between one end of each tends to hold each plate yieldingly against the opposite end of its associated bearing member.
Mounted on the end of each of the arms 20 is a bracket member having formed integrally therewith a cylinder 102 to which there is connected a conduit 103, Figs. 1 and 2. Fitted in each of these cylinders is a piston 104 and extending outwardly from each piston 104 is a connecting rod 106 which passes through a latch plate 108 and a trunnion block 110. interposed between each latch plate and its associated trunnion block is a coil spring 111 which tends to hold the plate 103 against the end of the cylinder 102. A pin 112 extends through each piston 104 and projects outwardly through a slot 114 in the cylinder 102 anda coil spring 116 normally holds the piston in the position illustrated in Fig. 2 and as determined by the engagement of the pin 112 with the inner end of the slot 114. Threaded onto the outer end of each of the connecting rods 106 is an adjusting nut 118. Each of the trunnion blocks is mounted in one arm of a bell-crank lever 120 which is fulcrumed on a shaft 122 supported in the bracket member 100. Connected to the other arm of the bell crank lever 120, by means of a swivel block 124, is the upper end of a thrust rod 126. The lower end ofeach thrust rod 126 is shaped to fit into a spherically shaped recess 128 formed in the block 62 and is held in place by a retaining pin 130, see Fig. 4.
Pivotally mounted on each of the bracket members 100 is a latch member which is provided with a notch for engaging one side of the latch plate 103 when the latch is in the position in which it is shown in Fig. l of the drawings. Connected to each latch is a control rod 152 which extends outwardly through a clearance hole in a stop member 154 and has threaded on its outer end a nut 155, Figs. 1 and 6. interposed between a fork memher 156, by means of which each rod is connected to its associated latch, and the stop member 154 is a coil spring 158 which normally holds the latch in engagement with the latch plate. Each of the stop members 154 is secured to a block 160 which is mounted for rectilinear movement, by means of rollers 162, 162, on a supporting member 164, fastened to a portion 166 of the frame of the machine by means of a screw 168. Extending downwardly from each of the blocks 160 is a stud 170 to which is connected the outer end of a link 172.
Mounted for pivotal movement on studs 130,
associated with the frame of the machine are two arms 182, 132, these arms being located below the wiper carrying arms 20, 20, see Fig. 1. Each of the arms 132 carries a shoe positioning member comprising a shoe engaging pad 184 supported at each end by a swivel block 186 which is mounted on an equalizing lever 188, pivotally connected to the arm 132. These arms are connected together by means of gear teeth 190, and are swung toward each other to bring the shoe engaging pads 184, 184into engagement with the opposite sides of a shoe presented to the machine by mechanism, not shown, which is similar to that provided in the machine of Patent No. 2,663,037, referred to above, the arms 182, 182 corresponding to the arms 100, 100 of that prior machine. Each of the links 172 is connected at its inner end to one of the equalizing levers 188 in a location close to the heelward endof the pad 184.
Secured to each of the wiper supporting blocks 62, by
means of a screw 201, on the heelward side of the block, is a stud 200 provided with an inner flange 202 and an outer flange 204, Fig. 3, and slidably and pivotally mounted on these studs is a shoe bottom engaging member indicated generally by the reference character 206. This member comprises two parallel rods 208, 208 which are connected together at their adjacent ends by means of end members 210, 210. Stretched between each of these end members and a screw 212, associated with a portion 214 of the machine frame, is a coil spring 216, these springs tending to hold the shoe bottom engaging bearing member 86 and a washer 92 on the stub shaft, 75 member. 206 in a centered position. The rods 208, 208
are spaced apart just far enough to fit over the studs 2%, between their inner and outer flanges, and these studs are milled olf on their opposite sides, see Fig. 7, to facilitate the assembly of the member 295 thereon.
As is explained more particularly in Patent No. 2,663,037, referred to above, early in the operating cycle of the machine the arms 182, 182 are operated to move the shoe positioning members 184, 184 into engagement with the opposite sides of a shoe S, comprising an upper U and insole l assembled on a last, previously presented to the machine by the operator. As a result of such inward movement of the shoe positioning members, the stop members 154 are moved inwardly and caused to assume positions which are determined by the shoe itself and more particularly by the widthwise location of the opposite sides of the shoe in the vicinity of its shank portion. Thereafter, during a later stage in the operating cycle, when the arms 20, 2d are operated to move the wiping units carried thereby inwardly, the rods 153, 158 slide through these stop members until the adjusting nuts 155, 155, threaded on the ends of these rods, contact these stop members, th reby withdrawing the latches 150, 159 and releasing the pistons 1M, 1434 to the action of fluid under pressure previously admitted to the cylinders 162, 192 during an earlier stage in the operating cycle. Preferably, the nuts 155, 155 are so adjusted on the rods 158, 1:13 that these pistons are released just as the portions a and b of each wiper 52 pass inwardly beyond the extreme marginal edge of the insole of the shoe at the ball portion thereof, the leading edges of the wipers 6t 6t) at this stage in the operating cycle being disposed somewhat outwardly beyond the marginal edges of the insole on the opposite sides of the downwardly curving shank portion of the shoe. Inasmuch as thestop members 154, are caused to assume positions determined by the shoe, the de ed time relationship of the release of the pistons 184, a will be maintained with all sizes of shoes and regardless of how'the shoes are presented to the machine by the operator.
Immediately upon the release of the pistons 10%, 104, the blocks 62, 62 are moved toward the bottom of the shoe by the thrust rods 326, 126, such movement of these blocks being limited by the engagement of the member 29-3 with previously lasted portions of the upper in the shank portion of the shoe, this member assuming a position similar to that shown in Fig. 7 of the drawings. The member 2&6 is so related to the blocks 62, '2, by the location of the studs 233i), that the leading edges of the wipers in Fig. 4. at the heelward ends 6 3, e of these wipers, are brought substantially to the same level as the extreme outer edges of the insole at the opposite sides of the shoe in these locations. During this initial movement, the blocks 52, d2 swing about the axes of the trunnion pins 83. However, as soon as the member 2296 engages the shoe bottom, the plates 8Q, swing about the axes of the shafts 34, (id thereby bending the heelward ends of the wipers 52, 52 to the extent permitted by the engagement of the portions b of the wipers 52, 5'2 with the bottom of the shoe. -low as the wiping units continue their inward movements over the bottom of the shoe, the blocks 52,, 62 are free to articulate about the trunnion pins 82, 82 and/or the shafts 8d, 34- so that the wipers 5'2, 5 are bent into substantial conformity with that portion f the shoe bottom which curves downwardly toward the shank just beyond the ball line and the wipers so, at: are caused to press firmly and evenly against the upper in the shank portion of the shoe heelv/ardly of the wipers 52, 52, the parts eventually reach ing the positions shown in Fig. 7, asthe inward wiping action is co; pleted. During the inward movements of the wipers these wipers are free to conform to the shape of the bottom of the shoe by bending upwardly against the resistance of the spring-pressed pins 74-, '74.
By limiting the extent of downward movement of each of the blocks 62, 62 in accordance with the heightwise position of the bottom of the shoe on each side of the shoe, by the action of the shoe bottom engaging member 2%, all danger of the leading edges of the wipers 60, 60 striking the edges of the insole is avoided. Yet, the flexible wipers are both pressed firmly and evenly against the upper during the entire extent of the inward wiping action. Moreover, by making the flexible wiper portions in two parts, i. e., the wiper 52 and wiper 60, the extreme bending action required to bring the wipers 60 into engagement with the upper in the shank portion of the shoe is effected without subjecting the flexible wipers 52, 52 to undue stress which might eventually cause them to break and a substantial portion of the outward thrust on the flexible wipers is sustained by the blocks 62, 62 which are connected directly to the plates 30, 36 carried by the arms 26, 20.
Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:
l. in a lasting machine, wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward its shank portion, means for moving all said wipers inwardly Widthwise of the shoe thus to wipe the upper over the insole, means for bending the heelwardly extending portions of the flexible wipers heightwise of the shoe into conformity to the lengthwise contour of the bottom of the shoe, a stop member for controlling the operation of the bending means associated with the flexible wiper on each side of the shoe, and means for varying the positions of said stop members in accordance with the lateral position of the shoe in the machine.
2. in a lasting machine, a pair of clamping members movable, respectively, into engagement with the opposite sides of a shoe presented to the machine to position the shoe laterally in the machine, wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides or" the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations wherethe bottom of the shoe curves heightwise from the ball line toward its shank portion, means for moving all said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means for bending the heelwardly extending portions of the flexible wipers heightwise of the shoe, and means for controlling the operation of the bending means associated with the flexible wiper on each side of the shoe in accordance with the position assumed by the clamping member on that side of the shoe when it is moved into engagement with the shoe.
3. In a lasting machine, a pair of clamping members movable, respectively, into engagement with the opposite sides or" a shoe shoe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe'respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward its shank portion, means for moving all said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means for bending the heelwardly extending portions of the flexible wipers heightwise of the shoe, a stop member for controlling the operation of the bending means associated with the flexible wiper on each side of the shoe, and means for varying the positions of said stop members in accordance-with-the position presented to the machine to position the laterally in the machine, wipers arranged to wipe assumed by the clamping members when they are moved into engagement with the shoe.
4. In a lasting machine, wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and-having portions extending toward the heel end of the shoe to act on the upper in. locations where the bottom of the shoe curves heightwise from the ball line toward its shank portion, means for moving all said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means for bending the heelwardly extending portions of the flexible wipers heightwise of the shoe into conformity to the lengthwise contour of the bottom of the shoe, and means common to both of said flexible wipers for limiting the extent to which the heel ward end of each of the flexible wipers is moved toward the bottom of the shoe by said bending means.
5. In a lasting machine, wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward its shank portion, means for moving all said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means for bending the heelwardly extending portions of the flexible wipers heightwise of the shoe into conformity to the lengthwise contour of the bottom of the shoe, and means engageable with the bottom of the shoe for limiting the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by said bending means.
6. In a lasting machine, wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward its shank portion, means for moving all said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means for bending the heelwardly extending portions of the flexible wipers heightwise of the shoe into conformity to the lengthwise contour of the bottom of the shoe, and means common to both of said flexible wipers and engageable with the bottom of the shoe for limiting the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by said bending means.
7. In a lasting machine, wipers arranged to Wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward its shank portion,,means for moving all said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means for bending the heelwardly extending portions of the flexible wipers heightwise of the shoe into conformity to the lengthwise contour of the bottom of the shoe, and means comprising a member connected to the heelward end of each flexible wiper for engaging the shank portion of the bottom of the shoe to limit the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by the bending means.
8. In a lasting machine, wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last, at the opposite sides of theball '8 Portion, of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curvesheightwise from the ball line toward its shank portion, means for moving all said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means for bending the heelwardly extending portions of the flexible wipers heightwise of the shoe into conformity to the lengthwise contour of the bottom of the shoe, and means comprising a member pivotally and slidingly connected to the heelward end of each flexible Wiper for engaging-the shank portion of the bottom of the shoeto limit the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by the bending means.
9. in a lasting machine, wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoerespectively, additional resiliently flexible wipers partially overlapped by said firstnamed wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curvesheightwise from the ball line toward its shank portion, means for moving all said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means for bending the heelwardly extending portions of the flexible wipers heightwise of the shoe into conformity to the lengthwise contour of the bottom of the shoe, and means comprising a rod connected to the heelward end of each flexible wiper for engaging the shank portion of the bottom of the shoe to limit the extent to which the heelward end of each of the flexi lc wipers is moved toward the bottom of the shoe by the bending means.
10. In a lasting machine, wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward its shank portion, means for moving all said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means for bending the heel wardly extending portions of the flexible wipers heightwise of the shoe into conformity to the lengthwise contour of the bottom of the shoe, and means comprising a rod pivotally and slidingly connected to the heelward end of each flexible wiper for engaging the shank portion of the bottom of the shoe to limit the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by the bending means. ll. In a lasting machine, wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said firstnamed wipers and having portions extending toward the heel: end of the shoe to acton the upper in locations where the bottom of the shoe curves heightwise from the ball line toward the-shank portion of the shoe, said additional wipers each including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its'shank portion, means for moving all of said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means associated with the heelward end of each of the additional flexible wipers for bending these wipers into conformity to the lengthwise contour of the bottom of the shoe, and means for limiting the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by said bending means.
12. In a lasting machine, wipers arranged to wipe the marginal. portion of the upper of a shoe on a. last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward the shank portion of the shoe, said additional wipers each including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its shank portion, means for moving all of said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means associated with the heelward end of each of the additional flexible wipers for bending these wipers into conformity to the lengthwise contour of the bottom of the shoe, and means common to both of said flexible wipers for limiting the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by said bending means.
13. In a lasting machine, wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward the shank portion of the shoe, said additional wipers each including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its shank portion, means for moving all of said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means associated with the heelward end of each of the additional flexible wipers for bending these wipers into conformity to the lengthwise contour of the bottom of the shoe, and means engageable with the bottom of the shoe for limiting the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by said bending means.
14. In a lasting machine, wipers arranged to wipe the marginal portion or" the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to acton the upper in locations where the bottom of the shoe curves heightwise from the ball line toward the shank portion of the shoe, said additional wipers each including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its shank portion, means for moving all of said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means associated with the heelward end of each of the additional flexible wipers for bending these wipers into conformity to the lengthwise contour of the bottom of the shoe, and means common to both of said flexible wipers and engageable with the bottom of the shoe for limiting the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by said bending means.
15. In a lasting machine, wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said firshnamed wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward the shank portion of the shoe, said additional wipers each including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its shank portion, means for moving all of said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means associated with the heelward end of wipers into conformity to the lengthwise contour of the bottom of the shoe, and means comprising a member connected to the heelward end of each flexible wiper for engaging the shank portion of the bottom of the shoe to limit the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by the bending means.
16. in a lasting machine, wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward the shank portion of the shoe,
said additional wipers each including a pair of resiliently I flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its shank portion, means for moving all of said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means associated with the heelward end of each of the additional flexible wipers for bending these wipers into conformity to the lengthwise contour of the bottom of the shoe, and means comprising a member pivotally and slidingly connected to the heelward end of each flexible wiper for engaging the shank portion of the botto a of the shoe to limit the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by the bending means.
17. in a lasting machine, wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resilientiy flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward the shank portion of the shoe, said additional wipers each including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its shank portion, means for moving all of said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means associated withrthe heelward end of each of the additional flexible wipers for bending these wipers into conformity to the lengthwise contour of the bottom of the shoe, and means comprising a rod connected to the heelward end of each flexible wiper for engaging the shank portion of the bottom of the shoe to limit the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by the bending means.
18. In a lasting machine, wipers arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward the shank portion of the shoe, said additional wipers each including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its shank portion, means for moving all of said wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means associated with the heelward end of each of the additional flexible wipers for bending these wipers into conformity to the lengthwise contour of the bottom of the shoe, and means comprising a rod pivotally and sliding connected to the heelward end of each flexible wiper for engaging the shank portion of the bottom of the shoe to limit the extent to which the heelward end of each of the flexible wipers is moved toward the bottom of the shoe by the bending means.
19. In a lasting machine, a pair of arms, wipers carried by each of said arms and arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible wipers associated with said arms and partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward the shank portion of the shoe, said additional wipers each including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its shank portion, a block secured to each of the two flexible plates which are nearest to the heel end'of the shoe, means for operating said arms to move the wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means for supporting each of said blocks on its associated wiper carrying arm for pivotal movements in directions extending heightwise of the shoe, and means for applying pressure to said blocks to cause the resilient flexible plates to conform to the contour of the bottom of the shoe.
20. In a lasting machine, a pair of arms, Wipers carried by each of said arms and arranged to wipe the marginal portion of the upper of a shoe on a last inwardly over an insole on the last at the opposite sides of the ball portion of the shoe respectively, additional resiliently flexible Wipers associated with said arms and partially overlapped by said first-named wipers and having portions extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball line toward the shank portion of the shoe, said additional wipers each including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its shank portion, a block secured toeach of the two flexible plates which are nearest to the heel end of the shoe, means for operating said arms to move the wipers inwardly widthwise of the shoe thus to wipe the upper over the insole, means for supporting each of said blocks on its associated wiper carrying arm for pivotal movements in directions extending heightwise of the shoe, said mounting means each comprising a member pivotally connected at one end to one of the blocks and at its opposite end to one of said wiper 12 carrying arms, and means for applying pressure to said blocks to cause'theresilient flexible plates to conform to the contour of the bottom of the shoe.
21. In a lasting machine, a wiper carrying arm, a wiper carried by said arm and arranged to wipe the marginal portion of the upper of a shoe inwardly over an insole on the last at the ball portion of the shoe, an additional resiliently flexible wiper associated with said arm partially overlapped by said first-mentioned wiper and extending toward the heel end of the shoe to act on the upper in locations where the bottom of the shoe curves heightwise from the ball portion toward the shank portion of the shoe, said additional Wiper including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from the ball line of the shoe into its shank portion, a block secured to the flexible metal plate which is nearest to the heel end of the shoe, means for supporting the block on the wiper carrying arm for pivotal movements in directions extending heightwise of the shoe, and means for applying pressure to said block to cause the resilient meal plates to conform to the contour of the bottom of the shoe.
22. In a' lasting machine, a wiper carrying arm, a wiper carried by said arm and arranged to Wipe the marginal portion of the upper of a shoe inwardly over an insole on the last at the ball portion of the shoe, an additional resiliently flexible Wiper associated with said arm partially overlapped by said first-mentioned wiper and extendingtoward the heel end of the shoe to act on the upper in'locations where the bottom of the shoe curves heightwise from the ball portion toward the shank portion of the shoe, said additional wiper including a pair of resiliently flexible metal plates arranged in overlapping relation to extend heelwardly from theiball line of the shoe into its shank portion, a block secured to the flexible meal plate which is nearest to the heel end of the shoe, means for supporting the block on the wiper carrying arm for pivotal movements in directions extending heightwise of the shoe, said mounting means comprising a member pivotally connected at one end to the block and at its other end to the wiper carrying arm, and means for applying pressure to said block to cause the resilient metal plates to conform to the contour of the bottom of the shoe.
2,665,436 Iorgensen Jan. 12, 1954
US470037A 1954-11-19 1954-11-19 Lasting machines Expired - Lifetime US2739323A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099846A (en) * 1961-03-22 1963-08-06 United Shoe Machinery Corp Pulling and lasting machines
US3222703A (en) * 1962-07-20 1965-12-14 United Shoe Machinery Corp Lasting machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665436A (en) * 1951-10-04 1954-01-12 United Shoe Machinery Corp Lasting machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665436A (en) * 1951-10-04 1954-01-12 United Shoe Machinery Corp Lasting machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099846A (en) * 1961-03-22 1963-08-06 United Shoe Machinery Corp Pulling and lasting machines
US3222703A (en) * 1962-07-20 1965-12-14 United Shoe Machinery Corp Lasting machine

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