US3849817A - Automatic shoe lasting machine - Google Patents

Automatic shoe lasting machine Download PDF

Info

Publication number
US3849817A
US3849817A US00459693A US45969374A US3849817A US 3849817 A US3849817 A US 3849817A US 00459693 A US00459693 A US 00459693A US 45969374 A US45969374 A US 45969374A US 3849817 A US3849817 A US 3849817A
Authority
US
United States
Prior art keywords
shoe
carriage
cylinder
machine
wiping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00459693A
Other languages
English (en)
Inventor
A Bowler
W Berrill
D Halford
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Noxet UK Ltd
Original Assignee
USM Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by USM Corp filed Critical USM Corp
Application granted granted Critical
Publication of US3849817A publication Critical patent/US3849817A/en
Assigned to BUSM CO. LIMITED reassignment BUSM CO. LIMITED ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: USM CORPORATION
Assigned to BRITISH UNITED SHOE MACHINERY LIMITED reassignment BRITISH UNITED SHOE MACHINERY LIMITED CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE MAY 12, 1987 Assignors: BUSM CO. LIMITED
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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

Definitions

  • ABSTRACT A shoe lasting machine having wipers and a shoe support relatively movable lengthwise to progressively last a shoe.
  • the support locates one end of the shoe at a reference point and has a movable measuring device engageable with the other end of the shoe to measure the shoe length and determinethe relative working positions of the wipers and support according to shoe length.
  • the invention provides a shoe upper, conforming machine for lasting opposite side portions of shoes comprising shoe supporting means,
  • the lasting instrumentalities are mounted in a stationary positionand the shoe supporting means comprises a carrier movable first to position the shoe lengthwise with respect to the lasting instrumentalities to determine the starting point of the lasting operation and then to move the shoe lengthwise to cause the lasting instrumentalities to progressively act on the lasting margin along the side portions to be lasted.
  • the means for engaging the end of the shoe is movable on the carrier to engage the shoe and thereby to position a stop member mounted on the carrier in accordance with the length of the shoe, after which, the stop member engages a relatively fixed abutment to position the carrier in the desired position for the lasting instrumentalities to commence their lasting operation.
  • the invention further provides shoe supporting means including a jack post, upon which a heel end of a shoe is placed, means for moving the jack post between a loading position and an operative position in which a heel seat of the shoe is located lengthwise against a hole-down member of the machine and a clamping arrangment which, by engaging opposite sides of the shoe, positions the shoe widthwise with respect to the lasting instrumentalities and aligns the portion of the shoe tobe lasted in the desired direction of relative movement of the support and the lasting instrumentalities.
  • shoe supporting means including a jack post, upon which a heel end of a shoe is placed, means for moving the jack post between a loading position and an operative position in which a heel seat of the shoe is located lengthwise against a hole-down member of the machine and a clamping arrangment which, by engaging opposite sides of the shoe, positions the shoe widthwise with respect to the lasting instrumentalities and aligns the portion of the shoe tobe lasted in the desired direction of relative movement of the support and the lasting instrumentalities.
  • the clamp ing means comprises a heel band and means for clamping the heel band around the heel end portion of the shoe assembly after it has been positioned against the hold-down member.
  • additional clamping means is provided to engage side portions of the shoe assembly at locations toewardly of the heel band.
  • Such clamping means may comprise a pair of flexible pads which engage and clamp the upper at opposite sides first in the vicinity of the top line and then progressively towards the feather line so as to wrap the upper against the last.
  • the shoe supporting means also includes a toe support connected with the tow end engaging and measuring member so as to provide support beneath the toe end portion of the shoe assembly.
  • the toe end engaging member by its measuring movement, also causes the desired positional relationship between the shoe assembly and the lasting instrumentalities.
  • FIG. 1 is a side view of an illustrative machine, with parts broken away, showing a shoe assembly supported upon shoe supporting means of the machine in loading position;
  • FIG. 2 is a side view, with parts broken away, of a lower portion of the machine shown in FIG. 1 but in scale and showing, in particular, shoe supporting means, shoe length sensing means, and shoe clamping means of the machine;
  • FIG. 3 is a front view, with parts broken away, of the lower portion of the machine seen in FIG. 2;
  • FIG. 4 is a front view, with parts broken away, of lasting rolls of the machine and of supporting means therefor;
  • FIG. 5 is a plan view of the shoe clamping means
  • FIG. 6 is a front view of one of a pair of side clamp arrangements forming part of the shoe clamping means
  • FIG. 7 is a plan view of parts seen in FIG. 6;
  • FIG. 8 is a front view of adhesive applying means of the machine
  • FIG. 9 is a fragmentary front view of a nozzle and associated template means of a modified form of the machine.
  • FIG. 10 is a plan view of the template means.
  • FIG. 11 is a front view of a gripper of the modified form of the machine.
  • the illustrative machine is a shoe upper conforming machine for simultaneously lasting opposite side portions of shoes in the shank region thereof.
  • the machine includes shoe supporting means 2 and means for causing the shoe supporting means to position a shoe assembly in position to be operated upon by lasting instrumentalities of the machine.
  • the lasting instrumentalities comprise a pair of lasting rolls 4 arranged to wipe the margins of the upper at opposite sides of the shoe assembly inwardly over an insole for securement, for example, by adhesive applied by adhesive applying means including a pair of nozzles 270.
  • the rolls 4 are caused to operate progressively, simultaneously along opposite side portions of the shoe assembly by relative lengthwise movement between the rolls 4 and the shoe support means.
  • the shoe support 2 includes a last pin 8 upstanding from a block 9 supported for limited widthwise movement in a head portion 11 of a jack post 10.
  • the post is slidable heightwise in a sleeve 12 which at its lower end, is secured between a pair of parallel two-armed plate members 14 (see FIGS. 2 and 3 in particular) which are pivoted on a pair of aligned cross pins 16 extending from side plates 18 of a carriage 20.
  • the upper ends of the side plates 18 are connected by an integral cross plate 22 (FIG. 3), and are each provided with a pair of rolls 24.
  • the rolls ride in horizontal guideways in channel members 26 supported on horizontal frame members 28 carried by vertical frame members 25, 27 from a base portion of the machine framework.
  • the carriage together with the shoe support 2 is thus movable lengthwise relative to the lasting rolls 4.
  • a piston and cylinder device 36 (FIG. 2) is provided, having a cylinder 37 connected between the plate members 14 and a piston rod 38 (FIG. 3) connected to a lower end of the jack post.
  • a piston and cylinder device 42 For swinging the jack post 10 about the cross pins 16 from a forwardly inclined loading position as seen in FIG. 1 to a position with the heel seat of a shoe assembly carried by the last pin 8 located beneath a holddown member 40, there is provided a piston and cylinder device 42.
  • a cylinder 44 of the device is pivoted on a cross pin 46 extending between the side plates 18 of the carriage, while a piston rod 48 is connected, by a pin 50, to lugs extending rearwardly from the plate members 14 supporting the sleeve 12.
  • a two-armed lever 52, 54 is pivoted on a cross pin 56 extending between forwardly extending arms 58 of the plate members 14.
  • the lower arm 54 is connected to a piston rod 60 extending from a cylinder 62 of a piston and cylinder device 64, the cylinder 62 being pivotally supported between downwardly extending arms 66 of the plate members 14.
  • the upper arm 52 carries a toeengaging plate 68-and a toe pad arrangement 70.
  • toe pad arrangement forms part of the shoe supporting means and includes a toe pad 72 mounted upon a piston rod of a piston and cylinder device 74, a cylinder 76 of which is carried by a bracket 78 secured to the arm 52 as shown in FIGS. 1 and 2.
  • the two-armed lever 52, 54 is swung clockwise as seen in FIG. 1 about the pin 56 to carry the plate 68 into engagement with the toe end portion of a shoe as sembly supported upon the last pin 8.
  • the length of the shoe assembly is measured for a purpose hereinafter referred to and the toe pad 72 is located beneath the forepart of the shoe assembly ready to be moved into supporting engagement with the shoe assembly.
  • the carriage 20 with the shoe support is held in what may be termed a shoe-loading position by engaging of the carriage with a stop 90 provided by a piston rod extending from cylinder 92 which is fixed to a bracket 94 mounted on the frame members 28. Air under pressure is admitted to the rear end of the cylinder 92 to hold the piston rod 90 in an extended forward position as shown in FIG. 1.
  • a piston and cylinder 80 including a cylinder 82 pivoted on apin 84 in a bracket supported on the frame members 27.
  • a piston rod 86 of the device 80 is connected, by a pin 88, to the side plates 18 of the carriage.
  • a shoe assembly may be placed on the jack with the last supported upon the last pin 8 and the top surface of the last engaging an upper surface of the block 9.
  • a cycle of operations of the machine may then be initiated, as by depression of a threadle (not shown) operating a valve in a control circuit of the machine, which supplies air under pressure to cylinders 44 and 37 to swing the sleeve member 12 and jack post 10 therein rearwardly in the machine and at the same time to raise the jack post 10 thus moving the shoe assembly rearwardly and upwardly until the heel end of the shoe assembly is nested within a heel band 110 of a heel band assembly 30 and the seat portion of the insole is located against the hold-down member 40.
  • the hold-down member is held in a lowered operative position by means of air pressure supplied to an upper end of a cylinder 100, a piston rod 102 of which is secured to the hold-down member 40.
  • the cylinder is secured to a supporting member carried by side frame members 106 supported by front and rear vertical frame members 107, 108.
  • the stop member provided by the piston rod 90 is also arranged to locate the carriage 20 in a position in which the heel seat of the shoe assembly is correctly positioned for engagement with the hold-down member 40 as just above ddescribed.
  • a pawl and ratchet device (not shown) is effective to prevent retraction of the jack post upon removal of air pressure from the lower end of the cylinder 37.
  • the heel band 110 is then closed about the heel end of the shoe assembly and side clamps of side clamping'assemblies 32 engage opposite sides of the shoe assembly as hereinafter described to centralize the shoe assembly whether the shoe be one for a left foot or for a right foot.
  • Air under pressure is then supplied to the rear end portion of cylinder 62 to extend the piston rod 60 to swing the two-armedlever 52, 54 clockwise (as seen in FIGS. 1 and 2) until the plate 68 engages the toe end of the shoe assembly.
  • This locates the toe pad 72 beneath the forepart of the shoe assembly and, as hereinafter described, sets a stop provided by a rod 112 in a lengthwise position related to the length of the shoe assembly.
  • air under pressure is supplied to the cylinder 76 to raise the toe pad 72 into supporting engagement with the forepart of the shoe assembly.
  • a pawl and ratchet arrangement prevents retraction of the piston rod 73 and air pressure can be removed from the cylinder 76.
  • the shoe assembly is now firmly clamped and supported on the shoe support ready for the side lasting operation.
  • the supply of air pressure to the upper end of cylinder 100 is removed so that a spring (not shown) therein can lift the hold-down member 40 to inoperative position, and, at the same time, the supply of air under pressure to the rear end of cylinder 92 is removed so that the stop member 90 may be withdrawn allowing the carriage to move to the right (as seen in FIG.
  • the stop-rod 112 is slidably received in a horizontal bore in a bearing member 118 secured to one side of the bracket 34, and is normally urged to the leftby springs 113 connected between a collar 115 on the stop rod 112, and a pin on the bearing member 118. Displacement of the stop rod 112 toward the right, against the action of the springs 113, is effected by engagement of an abutment 117 extending transversely from the arm 52. Such engagement takes place as a consequence of movement of the arm in a clockwise direction as seen in FIG. 1 to ,carry the toe engaging plate 68 into contact with the toe end of the shoe assembly.
  • the heel band assembly 30 is substantially like that of a heel seat lasting machine and will only be briefly described.
  • the heel band is detachably supported at 119 in well known manner upon forwardly extending arms 120 of two armedlevers having rearwardly extending arms 122.
  • the levers 120 122 are pivoted on studs 124 on a plate 126 fixed on the bracket 34.
  • a forked tongue 128 extending rearwardly from the heel band is received in a bridge piece 130 on the support plate 126 to restrain the central portion of the heel band against heightwise movement while permitting a limited amount of sideways and lengthwise movement when the heel band is closed about the heel end portion of a shoe assembly.
  • the arms 122 are pivotally connected at 132, 134, respectively, with a piston rod 133 and a cylinder 135 of a piston and cylinder device for imparting closing movements to the band 110 by swinging the levers 120, 122 at opposite sides in opposite directions about the studs 124.
  • the arms 120 are caused to move to equal extents to centralize the heel end portion of a shoe assembly embraced by the heel band through a tie rod 138 cross connected to one of the arms 120 at 140 and the other arm 122 at 142 as shown in FIG. 5.
  • a flexible side clamping pad 150 in the form of a block of plastic material such as having a low coefficient of friction, has a member 152 detachably connected to a block 154 provided with arcuate ribs slidable within arcuate guideways 155 formed in a supporting block 156 and a plate 158 secured thereto.
  • the center of curvature of the arcuate guideways 155 is substantially at the shoe engaging face of the pad 150 at about a mid position heightwise thereof (see FIG. 6).
  • the support block 156 is pivotally mounted on a pin 168 secured in the block 156 and received in a bore in a further block 170 secured to an end cap 172 of a cylinder 174.
  • a second cylinder 176 lies parallel to, and just above, the cylinder 174.
  • the cylinders 174, 176 each have an integral slide member slidably mounted in parallel guideways formed in a guide member 178 which extends generally widthwise of the machine and is secured at an outer end to a plate 180 which is secured to piston rods extending from the cylinders 174, 176.
  • the cylinder 176 has secured to it a plunger 186 having a rounded end which may be engaged with an upper portion of the associated side clamping pad 150 for a purpose hereinafter described.
  • Air under pressure is then admitted to the inner ends of cylinders 176 (the outer ends being connected to exhaust) to move the cylinders 176 and the plungers 1-86 toward the shoe assembly and cause the plungers to engage and deflect the upper end portions of the clamping pad 150 into firm engagement with the upper (as seen in broken lines in FIG. 6).
  • the progressive wrapping of the pads 150 about the upper beginning at the top line of the shoe assembly ensures that the upper is laid smoothly against the last up to about the feather line.
  • the lasting rolls 4 are frusto-conical in shape and are provided with wiping elements in the form of helical ribs 210 opposite hand. When the rolls are rotated the helical ribs 210 act to wipe marginal portions of the upper inwardly over the corresponding marginal portions of the insole.
  • the rolls 4 are supported by roll carrying means so that the axes of the rolls are arranged to extend at least substantially widthwise of a shoe assembly being operated upon.
  • the rolls are provided with shafts 200 rotatably mounted in bearing sleeves received within bores in bearing blocks 212 forming part of the roll carrying means.
  • the blocks are adjustably secured to an arcuate carrier 218 by screws 214 extending through arcuate slots 216 in the carrier.
  • Thrust bearings 204 are provided between the rolls 4 and the bearing blocks 212 and the rolls are driven by means of belts 208 passing around pulleys 206 on the shafts 200.
  • the belts and the pulleys may be cogged to ensure that the rolls 4 are rotated positively.
  • the arcuate carrier 218 is guided for limited arcuate movement (about an axis, indicated at A in FIG. 4, extending lengthwise of a shoe assembly being operated upon at about the level of the insole and centrally disposed between the inner end portions of the rolls 4) so asto provide for an equalizing effect on the pressures exerted by the two rolls 4 operating at opposite sides of the shoe assembly.
  • a support for the arcuate carrier 218 comprises a pair of supporting plates 222 bolted together and provided with an arcuate guide surface 220 and with two series of pins 226 extending inwardly from the supporting plates.
  • the pins 226 carry freely rotatable rolls 224, one series of rolls riding in arcuate grooves 227 formed in front and rear faces of the carrier 218 and the other series of rolls riding in arcuate slots 228 also formed in the carrier 218.
  • the supporting plates 222 are secured to a crossbar 230 extending widthwise of the machine between forwardly and rearwardly extending arms 232 of a pair of bell crank levers (one at each side of the machine) having other arms 234 depending therefrom.
  • Lower end portions of the arms 234 are pivoted on studs 236 extending transversely from upstanding pillars 238 supported on a bridge member (FIG. 1) 240 extending between the side frame members 106.
  • the studs 236 ae coaxial with a counter shaft (not shown) rotatable in bearings in pillars (not shown, but spaced inwardly of the pillars 238) upstanding from the bridge member 240, the counter shaft having secured thereon (at opposite end portions) cogged pulleys 246 for driving the belts 208.
  • the counter shaft has a pulley 248 driven by a belt 250 from an electric motor 252 supported on bridge members 254 extending between the side frame members 106.
  • a piston and cylinder device 256 (FIG. 1), the cylinder 258 of which is pivotally connected to a rod 259 extending between the bell crank levers at the junction of the arms 232, 234, while a piston rod 260 is pivotally connected by a pivot pin 262 to a fixed bracket 264 mounted on one of the bridge members 254.
  • the mechanism comprises a pair of nozzles 270 (FIGS. 8-10) (one for each side of the shoe assembly) through which thermoplastic adhesive in molten condition may be extruded on to the marginal portions of the insole as the latter is traversed past the nozzles as hereinafter described.
  • the nozzles 270 extend downwardly from nozzle body members 272 which at upper end portions 273 are pivoted on pins 275 on inner end portions of links 274.
  • the links are pivotally supported at their outer ends on pins 276 in a cross bar 278 extending across the upper ends of a pair of bars 280 upstanding from acarrier block 282.
  • the carrier block extends crosswise in the machine and is secured to a lower end portion of a piston rod 283 which extends downwardly from a cylinder 285 secured to a bridge 288 mounted on the machine frame.
  • the carrier block 282 is provided with rollers 284 riding on forward and rearward faces of guide members 286 depending from the bridge member 288.
  • the admission of air under pressure to the lower end of the cylinder 285 raises the carrier block 282 to lift the adhesive applying mechanism well clear of a shoe assembly as it is presented to the machine and moved to operative position as above described.
  • Connecting the lower end of the cylinder 285 to exhaust enables the adhesive applying mechanism to be lowered to operative position, downward movement of the carrier block 282 being limited by a suitable stop (not shown).
  • the nozzle body members 272, and associated nozzles 270 may rise and fall relatively to the cross bar 278 by reason of the pivots 275, 276 and links 274. Such rising and falling movement enables the nozzles to follow heightwise contours of the insole of a shoe assembly as it is moved past the nozzles.
  • Springs 290 connected between the pins 275 and a cross bar 289 (which is supported from the cross bar 278 by members 291) serve to counterbalance the major portion of the weight of the nozzle body members 272 and parts mounted thereon so that the nozzles 270 are lightly urged toward the insole, when permitted as hereinafter described.
  • a cylinder 293 from which depends a piston rod 295, an upper end portion of the cylinder being connected to the associated member 291 and the piston rod being provided with a head portion 297 having a lengthwise extending slot 299 therein which receives a pin 301 extending from the associated link 274.
  • the nozzles 270 may move transversely of a shoe assembly supported in the machine by movement of the nozzle body members 272 about the pivot pins 275.
  • L- shaped brackets 303 are fixed on the upper end portions 273 of the nozzle body members and springs 305 are connected, one between each upwardly directed arm of the brackets 303 and the opposite member 291 tending to urge the nozzles outwardly toward the edge portions of an insole.
  • a cylinder 307 and a piston rod 309 are connected between the upstanding arms of the brackets 303.
  • This piston and cylinder arrangement is double acting and, when air under pressure is supplied to one end of the cylinder 307, the upstanding arms of the brackets 303 are urged outward (against the action of the spring 305) to swing the nozzles 270 inwardly into positions in which they lie close together above a mid portion of the insole as limited by adjustable stop screws 310 engaging fixed stop members 311.
  • Fixedly secured to each nozzle member 270 is a foot 312 which extends slightly below the lower end portion of the nozzle and, by engagement with the insole, supports the nozzle just out of contact with the insole when the nozzle is in operative position.
  • the independent mounting of the two nozzles as above de scribed allows each nozzle to follow changes in the heightwise contour of the shoe assembly.
  • the lower end portions of the cylinders 293 are supplied with air under pressure to hold the nozzle body members 272 raised with respect to the cross bar 278 and the nozzles are held in their closely adjacent positions by air pressure applied to the cylinder 307 to extend the piston'rod 309.
  • the lower end of the cylinder 285 is connected to exhaust thus lowering the adhesive applying mechanism to operative position in which the nozzles and the feet 312 are spaced just about the surface of the insole.
  • the air supply to the cylinders 293 is then reversed to lower the piston rods 295 and allow the nozzles to be lowered until the feet 312 engage the insole.
  • the air pressure supply to the cylinder 307 is also reversed to urge the nozzles outward (while the feet 312 remain in contact with the insole) to limits determined by engagement of the nozzle body members with adjustable stop members (not shown) to locate the nozzle outlets just above marginal portions of the insole at opposite sides of the shank area. Movement of the nozzles in the manner above described is likely to ensure that the nozzles in moving out, do not ride over the lasting marginal portions of the upper.
  • Air pressure supplied to the cylinder 307 is then exhausted leaving the nozzles urged outwardly only by the action of the springs 305 thus minimizing pressure of the nozzle body members against the adjustable stop members to facilitate rising and falling movements of the nozzles as the insole is traversed therepast.
  • the carrier of the shoe supporting means is then moved lengthwise by the action of the piston and cylinder arrangement 80 so the shoe assembly is traversed lengthwise beneath the nozzles 270 and the lasting rolls 4 (which will have been lowered into engagement with the shoe assembly by air under pressure being supplied to the right hand end portion of cylinder 258, FIG. 1).
  • the nozzles rise and fall to follow the heightwise contours of the portions of the shoe bottom engaged by the feet 312, as the pins 301 ride heightwise in the slots 299 in the head portions of the piston rods 295, FIG. 8.
  • the nozzles are held in stationary positions (considered in a direction extending widthwise of the shoe assembly) as the body members marginal portions of the insole in two parallel straight lines.
  • the rate of traversing movement of the shoe assembly is controlled by an adjustable hydraulic dash pot arrangement 320 (FIG. 1) a piston rod 321 of which is connected to the carrier 20.
  • the cylinder of the dash pot arrangement 320 is secured to a bracket 322 depending from the cylinder 82 and an adjustable valve 323 controls the rate of flow of oil in the dash pot arrangement and hence controls the speed of movement of the carrier 20 under the action of air pressure in the cylinder 82 of the piston and cylinder arrangement 80.
  • the nozzle body members 272 are electrically heated by suitable thermostatically controlled electric cartridge type heaters (not shown) inserted in appropriate bores therein and contain passages between inlets 292 and the nozzles along which adhesive may pass, the adhesive being fed, in well known manner, into the inlets in rod form so that it becomes melted in the passages extending through the body member 272 and forced out of nozzles 270 as more rod is fed into the inlets 292 by suitable rod feeding means (not shown).
  • Associated with each nozzle 270 is a needle valve which is arranged to control the flow of adhesive through the nozzle. To cut off the flow of adhesive the needle valve is arranged to seat (in well known manner) against a seat within the nozzle it being urged toward the closed position by means of a spring.
  • a stem portion 314 (FIG. 8) is connected to a solenoid device 316 which, when energized, lifts the needle valve off its seating so that as rod adhesive is fed into the inlet of the heated nozzle body portion 272 molten adhesive is extruded through the nozzle, the needle valve serving,
  • the illustrative machine in its modified form, includes template means for controlling widthwise movement of shoe assembly. As shown in FIG. 9, one end of a flexible cable 330 is connected to a block 332 on the associated nozzle 270 and which also supports the associated foot 312.
  • Each cable extends through a sheath 334 secured at one end to a bracket 336 fixed to the carrier block 282 and secured at the other end to a lug 337 extending from a bracket 338 secured to one of the frame members 107.
  • the other end of the cable 330 is connected to a rod 340 slidable widthwise in a bearing portion 342 of the bracket 338.
  • Each rod 340 has a head 344 carrying a roller 346 engageable with a template.
  • the template means comprises a pair of templates 348, one for each nozzle, which are supported, as hereinafter described, upon brackets 350 secured to, and extending sideways from, oppite side portions of the bracket 34 of the carrier 20.
  • the templates 348 are thus arranged to partake of the lengthwise traversing movements of the carrier.
  • a cylinder 354 having a piston rod 356 connected to a block 358 depending from the head portion 344 of the associated rod 340.
  • the springs 305 (FIG. 8) are removed, the nozzles being urged inwards by air pressure applied to the cylinder 307. Admission of air under pressure to the outer end portions of the cylinders 354 will urge the associated rollers 346 into engagement with the faces 352 of the templates 348.
  • FIG. 8 Admission of air under pressure to the outer end portions of the cylinders 354 will urge the associated rollers 346 into engagement with the faces 352 of the templates 348.
  • each template 348 is shaped inversely to correspond to the outline shape of the corresponding portions of an insole (at the inside edge thereof) for a shoe of model size.
  • a mask 360 comprising a straight bar which is slidable lengthwise with respect to the template and is arranged to mask the edge face 352 when the mask 360 is in its extended position, so that the associated roller 346 engages the outside straight edge of the mask and not the edge face 352 of the template.
  • the masks 360 are connected with pneumatic piston and cylinder devices 362 indicated schematically in FIG. 10 for advancing and retracting the masks relatively to the templates 348.
  • a single template 348 with an outline shape corresponding (inversely) to that of the curved portion of the insole extending from the ball into the relatively straight shank portion of a shoe of model size may be used to guide the nozzle operating to apply adhesive at the inside curved portion of insoles of shoes within the whole size range provided that the template is positioned correctly lengthwise in accordance with shoe size (length) and is graded widthwise to take account of the variation of shoe width with size.
  • each template 348 is mounted upon its supporting bracket 350 so that it is movable lengthwise and widthwise, guided by rolls and slots 352.
  • Springs 353 normally urge the templates to the left as seen in FIG. 10 so that front end portions of the templates are engaged by lugs 355 extending widthwise from the arm 52.
  • the templates 348 are moved (heelward) proportionately (7:16) along the inclined slots 352 a distance appropriate to position the templates correctly lengthwise with respect to the shoe assembly to be operated upon, and in the desired widthwise position.
  • This positioning of the templates therefore occurs simultaneously with the lengthwise positioning of the stop rod 112 which determines, as above described, the relative position taken up byv the shoe assembly and by the lasting rolls 4 and nozzles 270 for the start of a lasting operation.
  • the control circuit arrangement is such that, when the heel band is closed about the heel end of the shoe assembly to align the shoe correctly with respect to the direction of travel of the carrier 20 and to position the shoe widthwise, the band as it were senses that a shoe assembly for a right shoe is present in the machine and signals the supply of compressed air to the piston and cylinder devices 362 such that the mask 360 at the right hand side of the machine is moved to its masking position covering the edge face 352 of the template 348 at that side of the machine, while the mask 360 at the left hand side of the machine is withdrawn leaving the edge face 352 of that template exposed.
  • the modified version of the machine is therefore provided with upper gripping means comprising a pair of grippers 400, arranged one at either side of the machine, and pneumatic means for op erating the grippers.
  • the arrangement is such that only the gripper which is to operate at the inside of the shoe assembly is caused to operate, the operation of the other gripper being automatically cancelled.
  • the shoe clamping means comprising the heel band automatically senses whether the shoe assembly present in the machine is for a left shoe or a right shoe and this automatic sensing of the shoe assembly is employed to signal the control circuit arrangement in such a manner as to cancel the operation of the gripper which lies over the outside portion of the shoe assembly.
  • the grippers at each side of the machine are similar, so that only the gripper at the right hand side of the machine is shown in FIG. 11 and will now be described.
  • Each gripper comprises an inner jaw 402 under-slung from two bifurcated portions 406 by which it is secured by screws 409 to an end cap 408 of a cylinder 410.
  • cylinder has a piston 412 from whichextends a piston rod 414 having a square-sectioned end portion 416 slidable between the bifurcated portions 406 of the inner jaw 402.
  • the outer jaw 404 is secured to the portion 416 so as to depend therefrom in cooperative relation to the inner jaw.
  • a return spring 418 in the cylinder 410 normally holds the piston 412 to the right hand end of the cylinder 410 as seen in FIG. 11 to hold the jaws in opened condition.
  • An end cap 419 of the cylinder 410 is secured to an end portion of a hollow piston rod 420 through which air under pressure may be supplied to the cylinder 410 to move the piston 412 to the left and close the jaws of the gripper.
  • the piston rod 420 extends through a cylinder 424 and has mounted thereon a piston not shown.
  • the cylinder 424 has lugs 426 extending therefrom and an end cap of the cylinder has a threaded stem portion 428 through which an outer end portion of the piston rod 420 extends.
  • the lugs 426 of the cylinder 424 are pivotally mounted upon arms 436 of a U- shaped member 438 which extends upwardly from a stem portion 440 by which it is clamped in a bracket 444 by means of a clamping member 442.
  • the bracket 444 in turn is clamped to a frame member 445 by means of clamps 446.
  • the support for the cylinder 424 may be adjusted lengthwise of the shoe assembly, widthwise of the shoe assembly and rotationally about the axis of the stem portion 440.
  • Threaded on to the stern portion 428 is a stop nut 430 which, by engagment with a flange portion 432 on an outer end portion of the piston rod 420 limits the movement of the gripper in a direction extending toward the center line of the machine. This, it will be understood limits the extent of indrawing movement which can be imparted to the gripper jaws.
  • a bracket 450 is secured to the outer end cap of the cylinder 424 and carries an upstanding arm 452 which is pivotally connected by a pin 454 to a head portion of a piston rod 456.
  • the piston rod extends from a cylinder 458 which is pivotally mounted on aligned pins 460, in upper end portions of the arms 436 of the U- shaped member 438.
  • a cylinder 458 which is pivotally mounted on aligned pins 460, in upper end portions of the arms 436 of the U- shaped member 438.
  • the application of air under pressure to the left hand end portion of the cylinder 458 will move the piston rod 456 to the right rocking the cylinder 424 clockwise about the pivot pins 434 to raise the gripper jaws to an inoperative position in which they are shown in FIG. 11. In this position the jaws will be well clear of a shoe assembly as it is loaded into the machine and moved to operative position.
  • air under pressure is applied to the right hand end of cylinder 424 to move the jaws of the gripper (which are in open condition) to the left as seen in FIG. 11 to a limit determined by engagement of the flange portion 432 with the stop nut 430.
  • the cylinder 174 of the side clamping arrangement at the opposite side of the machine may be energized to apply the clamping pad 150 at that side of the machine against the top line of the upper just prior to the operation of the gripper.
  • the side clamps 150 are fully applied to the shoe as hereinbefore described so that the gripper jaws may then release the upper margin and may be once again moved to inoperative position out of the way of the lasting operation.
  • the hold-down member 40 may be conveniently mounted upon the bracket 34 instead of upon a stationary portion of the machine frame as hereinbe fore described.
  • a simple form of hold-down member may be used and it is not necessary to retract it from engagement with the heel seat portion of the insole.
  • the operation of the machine may be simplified in that the stop member and cylinder 92 may be removed, the jacking of the shoe assembly occurring when the carrier 20 is in its fully forward (that is loading) position.
  • a machine for lasting shoes including means for wiping the margin of a shoe upper inwardly over the shoe bottom, a carriage, means for causing relative movement between the wiping means and the carriage lengthwise of a shoe supported on the carriage for progressively wiping selected portions of the. shoe upper, means for supporting the shoe with one end at a predetermined location on the carriage, a measuring device movable on the carriage toward said location into engagement with the other end of the shoe for measuring the shoe length according to the extent of movement of the device, and means settable according to the shoe of the wiping means and the carriage.
  • a machine according to claim 1 in which there is provided locating means on the carriage and the support means for the'shoe is movable from an exposed loading position toward the locating means for engaging the one end of the shoe with the locating means.
  • the support means includes a jack on which the heel end of the shoe is supported, the jack being movable from the exposed loading position toward the locating means for engaging the heel end of the shoe with the locating means.
  • a machine according to claim 3 in which the jack is also movable heightwise of the shoe to locate the shoe bottom in operable position relative to the wiping means.
  • the wiping means includes at least one frusto-conical roll axially disposed widthwise of the shoe and having helical lands.
  • the locating means includes a generally U-shaped band against the bight of which the heel end of the shoe is located, and the ends of the band are applied with equal movements against opposite sides of the heel end of the shoe pads are provided to engage opposite sides of the shoe upper to clamp the upper against a shoe last before wiping and to align the shoe with said relative movement.
  • a machine according to claim 8 in which the pads are arranged to engage the upper first adjacent the top line of the upper and then progressively toward the bottom of the shoe to wrap the upper against the last.
  • Colixmn l4 Claim 3
  • first line of claim change claim I to -claim 2-- Signed and sealed this -11th day of' February 1975'.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
US00459693A 1973-04-13 1974-04-10 Automatic shoe lasting machine Expired - Lifetime US3849817A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1781073A GB1466266A (en) 1973-04-13 1973-04-13 Shoe upper conforming machines

Publications (1)

Publication Number Publication Date
US3849817A true US3849817A (en) 1974-11-26

Family

ID=10101634

Family Applications (1)

Application Number Title Priority Date Filing Date
US00459693A Expired - Lifetime US3849817A (en) 1973-04-13 1974-04-10 Automatic shoe lasting machine

Country Status (10)

Country Link
US (1) US3849817A (enrdf_load_stackoverflow)
JP (1) JPS577721B2 (enrdf_load_stackoverflow)
AU (1) AU6776374A (enrdf_load_stackoverflow)
BR (1) BR7403014A (enrdf_load_stackoverflow)
DE (1) DE2418321A1 (enrdf_load_stackoverflow)
ES (1) ES425563A1 (enrdf_load_stackoverflow)
FR (1) FR2225111B1 (enrdf_load_stackoverflow)
GB (1) GB1466266A (enrdf_load_stackoverflow)
IT (1) IT1013993B (enrdf_load_stackoverflow)
ZA (1) ZA742373B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000535A (en) * 1974-06-05 1977-01-04 Usm Corporation Shoe machine shoe size and side sensing arrangements

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS187701B1 (en) * 1976-07-14 1979-02-28 Ludvik Dokoupil Facility for automatic positioning the working machanism of the shoemaking stretching machines,particularly for the heel and shank stretching
GB2072484B (en) * 1980-03-22 1983-11-30 British United Shoe Machinery Machine for lasting side portions of shoes
DE3245120A1 (de) * 1982-12-07 1984-06-07 Internationale Schuh-Maschinen Co Gmbh, 6780 Pirmasens Vorrichtung zum spitzen- und ballenzwicken einer schuheinheit
DE3438297A1 (de) * 1983-11-08 1985-06-27 Internationale Schuh-Maschinen Co Gmbh, 6780 Pirmasens Vorrichtung zum seitenzwicken einer schuheinheit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3039121A (en) * 1958-12-24 1962-06-19 Eugen G Henkel K G Device for pulling-over and wiping-in the uppers of shoes
US3152345A (en) * 1961-06-05 1964-10-13 United Shoe Machinery Corp Sole leveling machines
US3234574A (en) * 1964-02-17 1966-02-15 United Shoe Machinery Corp Backpart molding machines
US3445872A (en) * 1966-01-11 1969-05-27 Giuseppe Pisaroni Automatic machine for manufacturing footwear

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE907991C (de) * 1951-08-21 1954-04-01 Kamborian Jacob S Schuhzwickmaschine
DE6608576U (de) * 1968-07-25 1971-09-16 Moenus Maschf Seitendruecker fuer ueberhol-, spitzen- und ballenklebezwickmaschinen.
DE2021351C2 (de) * 1970-04-30 1982-06-16 Deutsche Vereinigte Schuhmaschinen Gmbh, 6000 Frankfurt Steuerung für eine Vorrichtung zum Zwicken von Schuhwerk

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3039121A (en) * 1958-12-24 1962-06-19 Eugen G Henkel K G Device for pulling-over and wiping-in the uppers of shoes
US3152345A (en) * 1961-06-05 1964-10-13 United Shoe Machinery Corp Sole leveling machines
US3234574A (en) * 1964-02-17 1966-02-15 United Shoe Machinery Corp Backpart molding machines
US3445872A (en) * 1966-01-11 1969-05-27 Giuseppe Pisaroni Automatic machine for manufacturing footwear

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000535A (en) * 1974-06-05 1977-01-04 Usm Corporation Shoe machine shoe size and side sensing arrangements

Also Published As

Publication number Publication date
ES425563A1 (es) 1976-07-01
JPS577721B2 (enrdf_load_stackoverflow) 1982-02-12
ZA742373B (en) 1975-10-29
GB1466266A (en) 1977-03-02
IT1013993B (it) 1977-03-30
FR2225111A1 (enrdf_load_stackoverflow) 1974-11-08
DE2418321A1 (de) 1974-10-31
FR2225111B1 (enrdf_load_stackoverflow) 1981-01-30
BR7403014A (pt) 1975-12-16
AU6776374A (en) 1975-10-16
JPS5041645A (enrdf_load_stackoverflow) 1975-04-16

Similar Documents

Publication Publication Date Title
US3849818A (en) Adhesive control for shoe lasting machine
US3849817A (en) Automatic shoe lasting machine
US2423454A (en) Lasting machine
US3908216A (en) Roll wipers for a shoe lasting machine
US3931788A (en) Adhesive extruding nozzle-guidance arrangements
US2891265A (en) Lasting machine with improved wiper action
US3915115A (en) Shoe lasting machines
US4407033A (en) Combination toe and side lasting machine
US4006504A (en) Automatic heel and side lasting shoe machines
US2727257A (en) Machine for operating on shoes
GB1048813A (en) Improvements in or relating to shoe upper conforming machines
US3803654A (en) Lasting machine
US2254369A (en) Machine for shaping uppers over lasts
US3758902A (en) Shoe lasting machine
US3439367A (en) Temporarily securing a shoe sole to a shoe form
US2149391A (en) Machine for pressing soles on the bottoms of shoes
US1979000A (en) Lasting footwear
US1943344A (en) Machine for use in the manufacture of shoes
GB1158743A (en) Lasting Machine
US1546819A (en) Lasting machine
US3513495A (en) Apparatus for temporarily attaching an insole to a last
US4404700A (en) Machine for lasting side portions of shoes
US2613376A (en) Lasting machine
US2337093A (en) Machine for applying pressure to shoe bottoms
US1968146A (en) Machine for shaping shoe uppers

Legal Events

Date Code Title Description
AS Assignment

Owner name: BUSM CO. LIMITED, ROSS WALK, BELGRAVE, LEICESTER L

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:USM CORPORATION;REEL/FRAME:004761/0784

Effective date: 19870430

Owner name: BRITISH UNITED SHOE MACHINERY LIMITED

Free format text: CHANGE OF NAME;ASSIGNOR:BUSM CO. LIMITED;REEL/FRAME:004761/0879

Effective date: 19870512

Owner name: BUSM CO. LIMITED,ENGLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:USM CORPORATION;REEL/FRAME:004761/0784

Effective date: 19870430