US2318703A - Shoe upper flanging machine - Google Patents

Shoe upper flanging machine Download PDF

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US2318703A
US2318703A US376277A US37627741A US2318703A US 2318703 A US2318703 A US 2318703A US 376277 A US376277 A US 376277A US 37627741 A US37627741 A US 37627741A US 2318703 A US2318703 A US 2318703A
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former
machine
arm
formers
flanging
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US376277A
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Minett Wilfrid Thomas
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United Shoe Machinery Corp
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United Shoe Machinery Corp
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    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00Lasting machines
    • A43D21/12Lasting machines with lasting clamps, shoe-shaped clamps, pincers, wipers, stretching straps or the like for forming the toe or heel parts of the last
    • A43D21/127Lasting 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 wipers

Description

May 11, 194s.
W. T. MINETT SHOE UPPER FLANGING MACHINE Filed Jan. 284, 1941 4 Sheets-Sheet l May 11, 1943- l w. T. MINETT 2,318,703
SHOE UPPER FLANGING MACHINE yFiled Jan. 28, 1941 4 sheets-sheet 2 Wmw /A/l/f/V ma M0311, 1943 w. T. MINETT l 2,318,703
SHOE UPPER FLANGING' MACHINE Filed Jan. 28, 1941 4 Sheets-Sheet 3 May 11, 1943. w. T'. MINET'T 2,318,703
SHOE UPPER FLANGING MACHINE Filed Jan. 28, 1941 4 wits-51112914 7 f 4 208 4 A 2 5ml n a] 221 Flg. 5, Flg 6 5 79 v 7 4945115 15] 4g 7 M5 v 4 /55 i 301I Il l 97 99 97 El: e g i 99 FIST@ 109 4 11.5" Y?? "5"? 107 119 175 H5 d: im?? H5 117 145 97 99 M5 F .10..- 727- i-"fi' #1272] 1 ,ff/415 4 12g- T; .uo 115 {iz/Q 107 M Mm Patented May ll, 1943 Uiii'ii SE'TES .FATh-l' @Fil-'MIE SHOE UPPER FLANGING MACHINE Application January 28, 1941, Serial No. 376,277
in Great Britain January 3l, 1940 34; Claims.
This invention is concerned with improvements in machines for forming flanges on shoe uppers and has particular reference to machines for forming outwardly turned flanges around the heel ends of the shoe uppers and comprises upper clamping and flange forming devices. A known machine of this character is described in United States specification No. 1,880,737.
One of the various objects of the present invention is to provide novel work positioning means, in a machine having upper clamping and ange forming devices, which will be capable of positioning uppers of various sizes Without changing any of the parts of said means.
Another of the various objects of the present invention is to provide novel power operated mechanism, in a machine having upper clamping and ange forming devices, for operating such devices.
A machine, illustrative of the invention, which is hereinafter described is provided with an upper gauging device for positioning an upper in the machine in relation to upper clamping and flange forming devices of the machine. The gauging device consists of two plates, pivoted to the machine frame, against which ,the edge of the'portion of the upper which is to be turned outwardly to form the flange is positioned. The plates have each formed in them one half of a U-shaped opening through which opening the hanging device projects.
The edge of each part of the opening is held against the flanging device by a comparatively light spring so that the plates can swing outwardly as the flanging device forms the outwardly turned flange and the plates can accommodate themselves to flanging devices of different sizes which may be used in the machine. It is therefore unnecessary to change the plates when the Hanging device is changed. Further, since the edges oi the opening are held, by the spring, against the ilanging device there is no opening .between the plates and hanging device into which lthe margin of the upper might project when the upper is presented to the machine and its edge around the heel end portion is placed against upper at the heel end thereof. l
The illustrative machine is arranged to be operated by power mechanism which includes a crank and a toggle device so' arranged that as the toggle of the toggle device is straightened the Vupper is clamped against the inside lformer and the crank causes, through the straightened toggle, the upper to be more firmly clamped and the flange to be formed on the upper.
In the accompanying drawings: n
Figure 1 is a left hand side elevation of a head of the illustrative machine; Y
Figure 2 is a right hand sectional elevation of the head;
Figure 3 is a front elevation of the head viewed in the direction indicated by the arrow A in Figure 2; Y
Figure 4 is a section on the line IV--IV in Figure 3;
Figure 5 is a detail elevation, partly in section, of a clutch of the illustrative machine viewed in Athe direction of the arrow B in Figure 1;
Figure 6 is a section on the line VIII-#VI in Figure 5;
Figure 7 is a front elevation Viewed in the direction of the arrow A in Figure 2 of a wiper of the illustrative machinej Figure 8 is a section on Ythe line VIII-VIII in Figure 7;
Figure 9Y is a section on the line IX-IX in f fFigure 7; and
' chine head l which is supported on a column or `base 3.
The machine head IV hasforined in it at the front of the machine an upwardly and rearwardly extending guideway 5. The guideway is at an angle of forty-live degrees to the horizontal and has slidinglyl mountedv in it a cross-head The cross-head 'l is in the form of a plate about eight inches wide and about seven inches long. The side edges of the crosshead' have extending from thein rectangular guides which engage in the guideway.'
The machine head I has formed in it a second jguideway 9, lying parallel to andinidway 'of the gudeway 5, in which is sliding'ly. mounted a slide member II which carries an inside former I3.
The slide member II is about two inches wide. The slide member Il has projecting forwardly from it, about midway of its length, a headed pin I5 and at its upper end has extendingupwardly ber II and at its lower end has formed in it an open-ended slot I9 into which the headed pin projects. The rear face of the inside former I3 engages the slide member Ill and has an overhanging lip 2| which provides an upwardly extending horizontal recess at the rear of the in- 'side former. This recess engages the upwardly extending flange I1 on the slide member II. By engaging the recess with the flange I1 and the open-ended slot I9 with the pin I5 the inside former I3 may be easily placed on the slide member II and by sliding the inside former upwardly to disengage the recess from the ange I1 and then moving it forwardly the inside former may readily be removed from the slide member I I and a different former may be placed in theY machine. The upper end of the inside former I3 is shaped to correspond to the heel end portion of an upper which is to be operated upon and has a plane rear face 23 lying parallel to the guideway 5 for the cross-head 1.
The headed pin I and flange I1 prevent the inside former I3 from moving forwardly and rearwardly and are arranged to allow the upper end of the inside former to rock slightly laterally. The slide member I I has secured to its upper end, at the rear of the inside former I3 a cam plate 25 (Figure 2) the upper end of which is normally held against a stop face 21 on the machine head I by a compression spring 29 which engages at its upper end the upper end of a bore in the slide member I I and at its lower end engages a washer 3| which is engaged by the upper end of an adjustable screw 33 in the machine head I below the slide member II. l
Pivotally supported on the cross-head 'I are a pair of outside formers which press the heel end portion of the upper against the inside former I3. Each outside former comprises a block 35, 31 having an upper-engaging surface 39, 4I shaped to conform to about one half of the inside former I3 around its heel end and for some distance along the side of the inside former. The upperengaging face 4I on the right hand block 31 extends further round the heel end of the inside former I3 than the upper-engaging face 39 on the other block 35 with the result that when the blocks are in engagement with the upper the Ajoint between the two blocks at the heel end of the upper lies to one side of a vertical plane passing lengthwise centrally through the inside former I3. This arrangement prevents the ex- I treme rear end of the upper, which may have on it a back strap, from being nipped or marked by the meeting edges of the faces 39, 4| on the blocks. 'Ihe rear faces of the blocks and the rear face 23 of the inside former all lie on the same plane which is parallel to the guideway 5.
The blocks 35, 31 have projecting laterally from their outer side faces lugs 43, 43 which enter openings in block carriers 45, 41 and pins 49, 49 passing through bores in the block carriers and lugs secure blocks to their carrier. 'I'he pins 49, 49 have knurled heads formed on their forward ends by which the pins may be readily withdrawn and then the blocks 35, 31 may easily be removed from their carriers 45, 41 and a pair of blocks of a different size or shape may be secured to the block carriers, these blocks also having lugs projecting from them to enter the openings in the carriers and holes to receive the pins. The left-hand block carrier 45 has projecting towards the right from its upper end an arm 5| i having a, rounded end 53, the axis of which lies in the aforesaid vertical plane passing centrally through the inside former I3, which engages a rounded recess formed in the upper end of the right-hand block carrier 41. The rounded end 53 of the arm 5| and the recess are held in engagement with each other by a tension spring 55 which is connected to pi-ns 51 extending from the upper ends of the carriers 45, 41. The pins 51 are secured in projections 59, 59 on the carriers which extend upwardly, parallel to the guideway 5 for the cross-head 1, and enter a recess in the cross-head. The projections 59 and recess prevent upward or downward movement, at right angles to the guideway, of the upper ends 0f the block carriers 45, 41.
'I'he upper end portions of the block carriers 45, 41 are connected to the cross-head 1 by a pair of links 6|, 6| having rounded ends which seat in corresponding recesses in the block carriers and cross-head. Pins pass through the links 6I and are secured in the block carriers 45, 41 and cross-head 1. The links 6I extend upwardly and outwardly from their pivotal connections to the block carriers at an angle of about thirty-ve degrees to the aforesaid vertical plane.
The block carriers have extending rearwardly and downwardly from their upper end portions a pair of pins 63, 63 which enter open ended slots 55, 65 formed in the side margins of the lower end of an upwardly and rearwardly extending slide 61. The pins 65, the pins in the lower ends of the links 6| and the rounded end 53 of the aforesaid arm 5I on the left hand block carrier 45 all lie, when the cross-head 1 is in its raised position, at about the same level heightwise of the machine.
The upper part of the slide 61 is guided in a guideway 69 formed in a bracket 1| secured on the upper part of the machine head I. The slide 61 has formed in it a slot 13 which extends lengthwise of the slide and passing through the slot and slidingly mounted in a bore in the bracket 1| is a headed pin 15, the head of which is pressed against the slide by a compression spring 11 between the machine head and a nut 19 threaded on the headed pin 15. Movement of the slide 61 in its guideway 69 is by this means frictionally resisted.
The lower ends of the block carriers 45, 41 have pivoted to them by pins 8|, 3| extending downwardly and rearwardly the upper ends of rods 83, 83 which from their upper ends extend downwardly and forwardly and also outwardly laterally of the machine. 'I'he rods 83 are slidingly mounted in sleeve members 85, 85 which are pivoted at 81, 81 to the machine head I. The sleeve members 85 each have in them a compression spring 89 which as the cross-head 1 is moved downwardly is engaged and compressed by the lower end of its rod 83. The cross-head 1 is normally held in a raised position in which the upper end of the cross-head 1 engages a face on the bracket 1I by a pair of compression springs 9|, 9| one at each side of the cross-head, in bores extending lengthwise of the cross-head. The springs 9|, 9| engage the ends of the bores and- 'plungers 93, 93 in the lower ends of the bores which engage studs 95, V projecting from the machine head.
As the cross-head 1 is moved downwardly in its guideway 5 by a treadle operated mechanism inside former I3.
the arm 5| on the left-hand block carrier 45 until their lower end portions engage the side of the heel end portion ofan upper which has been placed on the inside former |3. During continued downward movement of the cross-head 1 the blocks 35, 31 wipe the upper down the sides of the inside former |3 and the slide 61 also moves down but owing -to the friction exerted on the slide the blocks 35, 31 swing inwardly as they move down and press the upper against the sides of the inside former I3. As the crosshead 1 moves down the rods 83 which are pivoted to the lower ends of the block carriers 45, 41 move downwardly in and swing inwardly with their sleeve members 85 but the lower ends of the rods do not engage the upper ends of the springs 89 in the sleeve members until the blocks 35, 31 have been moved down so far that the upper portions of their inner curved surface are pressed against the upper. The upper which has been placed on the inside former I3 is in this manner wiped down and pressed against the inside former. As will hereinafter appear the blocks 35, 31 are pressed more firmly and the ange is formed on the upper, by hanging members, by power operated means.
The upper anging members lie just behind the inside former I3 and comprise a pair of flanging blocks 91, 99 which are arranged to spread apart about a, common axis |9| (Figure 7) to form the flange on the upper. When the flangingblocks 91, 99 are closed together the edge of the front face of the blocks conforms in size andshape substantially to the size and shape of the inside former I3. 'Ihe left-hand block 91 (Figure 7) at its upper end has formed in it a cylindrically shaped recess |03 extending inwardly from its front face, the wall of which is concentric to the axis |I about which the blocks move and the right hand block 99 has projecting from its upper end a lug |05 which is shaped to fit into the recess |03, the forward face of the lug being a continuation of the front face of the block. The outer edge of the right hand block extends, at the top of the block, to the left of the aforesaid vertical plane which passes centrally through the By this arrangement a continuous edge is provided around the front face of the anging blocks which remains substantially unbroken as the flanging members are spread" apart.
Each flanging member 91, 99 is detachably secured to the front of a iianging arm |01, |09 the front faces of which arms lie parallel to the aforesaid guideway 5 for the cross-head 1, by pins I I I secured in each arm and a hole in each flanging member and a forwardly and rearwardly extending face ||3 on each flanging member and a face on a forwardly and upwardly extending ange I|5 on each arm. The left hand arm |01 has extending downwardly and rearwardly from its `upper end at right angles to the guideway 5 a sleeve ||1 which is rotatably mounted in a sleeve bearing ||3 (Figure 2) on the machine head. rIhe right hand arm I 09 has extending downwardly and rearwardly from its upper end a spindle I|9 which is rotatably mounted in the aforesaid sleeve ||1 on the left hand arm |01.
The spindle ||9 has secured on its rear end a washer |2| (Figure 2) which is larger in diameter than the sleeve ||1 and prevents relative movement in one direction between the arms |01, |09. A face on the rear of the right hand arm |09 en- -gages the forward end of the sleeve and prevents 'relative movement between the arms |01, |09 in 75 the other direction. The washer |2| normally engages a shoulder at the rear of the sleeve bearing I8 and is held against the shoulder by a compression spring |23 housed in a cylindrical chamber, coaxial with the axis of the sleeve and spindle, in the bearing H8. The rear end of the spring |23 is engaged by an adjustable screw |25, in the rear end of the chamber, by which the spring may be adjusted.
Each flanging arm |01, |09 has extending downwardly and rearwardly from it near its lower end a pin |21 on which is rotatably mounted a rectangular block |29. The blocks |29 engage in rectangular grooves |3I (Figure 3) in the aforesaid cam plate 25 which is secured on the slide member which carries the inside former I3. The rectangular grooves 3| extend upwardly and outwardly at an angle of ninety degrees to each other and the blocks |29 normally lie Vin the lower ends of the grooves close towher'e the grooves meet.
The margin of the upper which is to be iianged outwardly, in the illustrative machine, is positioned rearwardly of the rear face of the inside former I3 by a pair of gauge plates |33 (Figures 2 and 3) the front faces of which are as far rearwardly of the rear face of the inside former I3 as the width of the margin of the upper which is to be turned outwardly. Each plate |33'is pivoted at |35 at its upper end to a head |31 on the forward end of a downwardly and rearwardly extending stem |39 which is slidingly mounted in the machine head a little higher than the aforesaid sleeve ||1 and spindle ||9 on the flanging arms. The stem |39 extends downwardly and rearwardly at right angles to the cross-head guideway 5 and the pivots of the gauge plates are parallel to the stem and lie one at each side of the stem. The gauge plates |33 are urged about their pivots, by a tension spring |4| connected at each end to the plates, towards the hanging members 91, 99. The lower portions of the gauge plates have in their inner edges recesses, the recess, which is U-shaped, formed between the two plates extending around the top of and along the sides of the hanging members 91, 99. The inner edges of the recesses in the gauge plates engage the bottoms of recesses |43 (Figure 9) formed along the outer sides of the flanging members 91, 99. As the hanging members 91, 99 are spread apart to form the flange on the upper the gauge plates |33 swing with them about their pivots |35 and if the flanging members are changed for others of a different size the plates accommodate themselves to these members. Since the gauge plates are held by the spring |4| in engagement with the bottoms of the recesses |43 in the sides of the Hanging members they are always in a position to be engaged by the edge of the upper when the latter is presenetd to the machine.
The aforesaid stem 39 which extends downwardly and rearwardly from the head |31 to which the gauge plates are pivoted has formed in the left hand side of it a recess |45 into which projects an eccentric pin |41 projecting from the right hand end of a horizontal shaft |49 which is rotatably mounted in the machine head I. The left hand end of the shaft |49 has secured on it outside the head a hand1ever 15| (Figure 1) by which the shaft may be rotated to adjust through the eccentric pin |41 the stem |39 and gauge Vplates forwardly or rearwardly. The hand'lever -has in it a spring plunger arranged ltoenter one Yof a series of recesses|53 inthe machine head `sides of the eccentric links -|1|.
to hold the gauge plates in theiradiusted position and 'these recesses indicate to the operator'the .distance of theY front faces of the gaugecplates from the rear face of the inside former .and the width of the fiange which will be turned outwardly.
, The aforesaid cross-head 1 has secured in it studs |55 V(Figure 4) which have secured in their rear ends pins |51 on whichV are Ypivoted `the forward ends of a pair of parallel levers |59 which extend from the pivots rearwardly and downwardly. The studs |55 are secured in the cross-head near each side thereof. The rear ends of the parallel levers I 59 are pivoted to the upper ends of a pair of radius arms IBI which are pivoted to the machine head I on horizontal coaxial pivots |53 extending laterally of the machine. As the crosshead rises and falls the front ends of the parallel levers |59 move in a straight path and the radi-us arms IBI swing forwardly and rearwardly. The parallel levers |59 have pivoted to them, by horizontal coaxial pivots |95 extending laterally of the machine, the forward ends of a pair of rear- ,I1I form an inverted toggle which as will hereinafter appear in straightened by treadle operated means before the driving shaft is caused vto be operated.
A horizontal shaft |11 extending laterally of the machine is positioned a little rearward of the driving shaft |15 and is rotatably :mounted in the machine head I. The shaft I11has secured on it a pair of upwardly projecting varms |19, the upper ends of which engage the rear Also secured on the latter shaft is a rearwardly extending karm I8| the rear end of which has secured in it a pin |83 which is arranged to be engaged :by
the upper end of a rod |85 connected to a treadle lever.
When the treadle lever is depressed the upwardly projecting arms |19 engage the rear sides of the eccentric links |1| and swing the vlinks forwardly about the eccentrics |13, until the aforesaid shaft V|69 at the upper ends of the eccentric links engages a stop face |81 on a block |89 which is secured on the machine head. As the eccentric links |1| are thus swung forwardly the toggle |61, |1I is straightened and the aforesaid parallel levers I59 are thereby swung downwardly about their pivotal connections to the aforesaid radius arms ISI and move the crosshead 1 downwardly to cause as -hereinbefore described the outside formers to wipe down and clamp the upper against the inside former I3.
face controls the path of movement ofthe shaft |6| as the eccentrics rotate, and the front face of the plunger is only slightly greaterthan the diameter of the shaft IBI. As the eccentric links I1I and cross-head 1 are lowered by rotation of the eccentrics |13 the shaft I6-I moves down between these faces which prevent the shaft IGI from moving laterally during the rotation of the eccentrics and the toggle |61, |1I from being broken. Should the eccentrics |13 be caused to be rotated while the shaft |5| is above the plunger |9| the latter will yield downwardly and thus prevent damage to the machine.
When the illustrative machine is in its normal stopping position the upper rounded end of the inside former I3 is a little higher than the upper round ends of the flanging blocks 91, 99 so that when the heel end portion of an upper is placed on the inside former I3 its margin can readily pass rearwardly around the outside of the flanging blocks.
After the outside formers have pressed the heel end portion of the upper against the inside former |3 the driving shaft |15 is caused to be rotated through a single cycle, by means hereinafter described, and the cross-head 1 is moved down and up again by the eccentrics |13. As the cross-head 1 is moved down by the eccentrics the aforesaid rods 83 engage and compress the springs 89 in the aforesaid sleeve members 85 and press inwardly the lower ends of the block carriers 45, 41 thus applying further pressure upon the sides of the upper, the sleeve members rotating inwardly and downwardly during this movement of the crosshead 1. Also as the cross-head 1 moves down the inside former I3 and the aforesaid cam plate 25 which is secured to the aforesaid slide member II which carries the inside former I3 are moved downwardly and the aforesaid rectangular grooves |3| in the cam plate cause the flanging members to swing outwardly away from each other. The downward movement of the inside former I3, relatively to the flanging blocks 91, 99 causes the portion of the flange around the heelV end portion of the upper to be turned outwardly and the spreading apart of the flanging blocks 91, 99 causes the side portions of the ange to be turned outwardly. The rear faces of the inside and outside formers lie in the same plane which is parallel to the crosshead guideway 5 and the front faces of the flanging blocks are positioned a slightly less distance behind these rear faces than the thickness of the upper, and it may be a stiffener in the upper, with the result that when the margin of the upper is bent outwardly the spring |23 which urges the flanging blocks 91, 99 forwardly is compressed slightly and the flange is bent outwardly parallel to and pressed between these faces.
The machine head I has secured to its left hand side a bracket |93 (Figure 1) having a bearing for the left hand end of the driving shaft |15. The bracket |93 has in it a chamber and a worm-wheel |95 rotatably mounted on the driving shaft |15 and is housed in the chamber. A rearwardly extending horizontal worm-gear shaft |91 is rotatably mounted in a bearing |99 which projects rearwardly from the bracket |93.
The forward end of the worm-gear shaft |91 has secured on it a wormgear 29| which meshes with the aforesaid worm-wheel |95 and the rear end of the shaft |91 has secured on it a pulley 1293. which is driven by a belt from a line-shaft Aor may be driven by other means.
The worm-wheel has in its left-hand side a recessj205 which is arranged to be engaged by the right hand end of a bolt 201 (Figure 6) which is slidingly mounted in a. collar 209 which is secured on the driving shaft 115. The bolt 201 is urged towards the worm-wheel by a spring 208 and its left hand end has on it a head 211 which is arranged to engage a wedge face 213 on a block 215. The block 215 is pivoted at 211 to a clutch arm 219 and is normally held towards the ,path of movement of the head 211 by a compression s pring 22| between the arm 219 and block 215. The block 215 has a downwardly extending lug 223 which enters a recess 225 in the arm 219 and is held by the spring 221 against one side of the recess. When the head 211 of the bolt 201 engages the wedge face 213 on the block 215, as the machine is being stopped, it swings the block 215 about its pivot 211 until the block engages the arm 219. As the bolt 201 thereafter travels along the wedge face 213 on the block it is positively withdrawn from` the recess 205 in the worm-wheel 195. Just as the bolt 201 is leaving the recess 205 in the worm-wheel 195 the spring 221 overcomes the friction between the bolt and the recess and moves the block 215 away from the arm 219 and causes the bolt 201 to be Withdrawn from the recess 205 in the wormwheel 195. This arrangement ensures that the bolt 201 is fully withdrawn from the recess 205 and prevents undesirable chattering between the bolt 201 and worm-wheel 195 which may occur if the bolt is not fully withdrawn.
The clutch arm 219 is pivoted on a horizontal stud 221 (Figures 1 and 5) secured in the bracket 193, which is lower than and rearward of the driving shaft 115 and the arm 219 projects upwardly from the stud. The upper end of thearm 219 is engaged by a shoulder 229 formed on` the lower side of a substantially horizontal latch arm 231.
The latch arm 231 extends over the upper end of the arm 219 and over the collar 209 on the driving shaft 115. The latch arm 231 at its rear end is pivoted, by a horizontal pin 233 to the lower forked end of an upwardly extending arm 235 of a three-armed lever 231 which is secured on a horizontal laterally extending shaft Z39 which is rotatably mounted in the bracket 193. The lever 231 has extending forwardly from it an arm 241 which, when depressed by the operator causes, through the shoulder 239 on the latch arm 231, the arm 219 to be swung rearwardly to allow the bolt 201 to be moved by the spring 208 into engagement with the left hand side of the rotating worm wheel 195 and into the recess 205 in the worm wheel when the rel cess, during the rotation of the worm-wheel, moves into alignment with the bolt, When the bolt 201 has entered the recess 205 in the worm wheel 195 the driving shaft 115 is rotated and vduring an early part of the rotation of the driving shaft a cam face 243 (Figure l) on the collar 209 raises the latch arm 231 and releases the shoulder 239 from the upper end of the arm 219. The arm 219 is thus allowed to be moved forwardly by a spring 245. connected to it and to the bracket 193. into engagement with the collar and as the bolt 291 travels round with the collar the wedge face 213 on the `block 215 causes the bolt to be withdrawn from the recess in the worm wheel. The driving shaft 115 is thus disconnected from the continually rotating worm-wheel 195 and may be finally stopped. if it has not previously stopped after a single revolution by the engagement of the head 21 1 with a shoulder 241 on the arm 219. When the arm 241 is released atension spring 249 (Figure 1) connected tovan arm 251 of the three-armed lever 231 and to the bracket 193 raises the arm 241 and moves the latch arm 231 forwardly so that its shoulder 229 will again engage the front face of the upper end of the arm 219. If the arm 241 is released immediately it has been depressed the arm 241 and latch arm 231 will be returnedby the springV 249 and the arm 219 Will be moved forwardly by its spring 245 into engagement with the collar without the shoulder 229 on the latch arm 231 being disengaged from the arm 219 and the latter will be raised and lowered idly bythe cam face on the collar 209. i' g To prevent the driving shaft from being caused to be rotated until the aforesaid shaft 169 at the upper ends of the eccentric links 111 has been moved fully forwardly and the toggle has been straightened the shaft 239 has projecting forwardly and upwardly from it a stop arm 253 (Figure 1) which normally engages a hook 255 on a hooked lever 251 which is pivoted on a horizontal laterally extending pivot 259 secured in the machine head 1 and prevents the arm 241 from being depressed. p
As the eccentric links 111 are swung forwardly, as hereinbefore described by means of the treadle and just before they reach their fully forward position, one of them engages an adjustable screw 261 in the hooked lever 251 and during the last portion of the forward movement of the eccentric links 111 moves the hook 255 on the hooked lever away from the stop arm 253 and thus allows the arm 241 to be depressed by the operator. When the eccentric links 111 swing rearwardly the hooked lever 251 swings rearwardly into a position in which its hook 255 is beneath the stop arm 253 if the arm 241` has been released. If the arm 241 is released after the machine has been operated and the eccentric links 111have moved rearwardly and have allowed the hooked lever 251 to move rearward therforward end of the stop arm 253 snaps past the hook 255 which then moves beneath the stop arm.
The cam shaft 115 has secured on it a cam263 (shown in dot and dash lines in Figure 2) which during the rotation of the cam shaft 115 engages the arm 255 of a bell-crank lever which is pivoted on a horizontal laterally extending shaft 2115ecured in the machine head a little lower than and forwardly of the driving shaft 115. Another arm 219 of the latter bell-*crank lever extends forwardly beneath a rearwardly extending lug 281 on the aforesaid slide member 11 which carries the inside former 13. The cam 263 is arranged to actuate the bellecrank lever just after the eccentric links 111 commence to rise and causes the forwardly extending arm 219 of the bell-crank lever to engage the rearwardly extending lug 281 on the slide member 11 and positively raise the slide member 11 somewhat; and with it the crosshead 1 and thus'assist the springs 29 `and 91 which normally raise the slide member and crossaround the upper end of the inside former 13 with the edge of its margin which is to be turned outlwardly against the gauge plates 133, the gauge plates 133 having previously been adjusted forwardly or rearwardly according to the width of flange which it is desired to turn outwardly. The operator then ldepresses the treadle lever and causes the outside former to, wipe down-and clamp the heelend portion of the upper against the inside former I3. The operator thenwhile holding the treadle depressed, depresses the arm 24| andcauses the driving shaft |15 to make a single revolution, during which the outside formers are pressed more firmly against the upper andthe outside formers and inside former are moved down relatively to the flanging members. During the downward movement of the outside and inside formers the iianging members are spread apart and the ange is formed on the upper. The outside and inside formers are then raised by their springs and by the cam 263 and bell-crank lever and if the treadle is released the outside formers are raised to their highest position-and are opened.
Whenthe aforesaid shaft |69 has been swung to its forward position it is positioned above the forward end portion of a lever 283 pivoted on a stud 285 which is-securedin a bracket.281..se cured-on the head I. .Therear end `portion of thelever 283is pivotally connected at 289 tothe upper end portion of a link 29| .the.-lower end portion of which is pivotally connectedat 253 to an arm 2S5-which is pivoted onrtheA aforesaid shaftv |11. As the-shaft I ISS-is moveddownwardly Ybythe eccentric links- |1I it engages the forward portionofthe-lever 283 and moves this portion downwardly, thus raising the rear end of the lever and throughthe link 29| swinging the arm 295 rearwardly. The arm 295 carries a roll 291 which when the arm 295 is swung rearwardly engages the rod |85 and moves it away from'the pin |33. This enables the cross head 1 to be fully raised as soon' as the driving shaft has completed a revolution even if the treadle lever is held depressed by the operator.
After the` eccentrics |13 have moved the cross head 1 down and have compressed the spring 29 which supports the inside former I3 there may be a tendencyv for the latter spring to suddenly raise the inside former. I3 and cross head 1, as the eccentrics are moving in a direction to raise them, by rotating the driving shaft |15 through the toggle links |1I and-eccentrics |13 and moving the bolti 201` ofthe clutch away from the face of the recess which drives it. To prevent kthis the illustrative machine is DTOVded With a brake device (Figure 10) which Vcomprises an eccentric 299secured onthe driving shaft and a brake member-30| which isarranged to-beengaged by the eccentric. The-eccentric is .arranged to engage the brakemember and tend to `retard rotation-of the driving shaft |15 during thatupart of themachine cycle-'when the-spring 29 whichsupport'sthe insideform'er vI 3v is expanding. and prel ventsthe spring from suddenly raising the inside formerand cros'shead.
"Having'l thus` described my invention, :what I claim:v as `new and ld`esireto -secure by Letters VPatent of theUnited Statesis:
1. A-shoe upper flanging :machine comprising an inner mould, about which an end-portionfo an upper to be vflanged is placed, outer moulds, for
clamping the `upper against the inner mould, a slide-to which the outer moulds are pivotally connectedmeansffor moving the slide, a movable bar to which. the outer moulds are also connected and friction means which act, by retarding vmovement oi the bar, to `cause the outer mouldsto swing towards Y'each other about their pivotal connections-to the slide, during movement Lof the slide, until. they engage thel upper.
A. shoe upper flanging machine comprising CII aaienio aninner mould, about which an end portion of an upper to be fianged is placed, outer mouldafoi clamping the upper against the inner mould. iianging members for spreading outwardly-the margin of the clamped upper and gauge plates, for positioning the upper relatively to the moulds, which plates are yieldingly held against the anging members.
3. A shoe upper flanging machine Comprising an inner mould, about which a portion of an upper to be flanged is placed, outer moulds, for clamping the upper against the inner mould, flanging members for spreading outwardly the margin of the upper, operator-actuated means for causing the outer` moulds to clamp the upper against the inner mould and Vpower Operated means for causing the outer moulds further to clamp the upper and for causing the anging members to spread outwardly the margin'fof the clamped, upper.
4. A shoe upper flanging machine comprising an inner mould, aboutv which an end portionof an upper tobe flanged is placed, outer moulds for l clamping the upperagainst the inner mould, anging members arranged to spread outwardly themargin of the end portion of the clamped upper, a toggle, operator-actuated means for straightening the toggle, connections between the toggle and the outer moulds for causing the outer moulds to clamp the upper against the inner mould during straightening of the toggle and a power operated eccentric for moving bodily the straightened toggle to cause the flanging members to spread outwardly the margin of the clamped upper.
5. A shoe upper flanging machine comprising an inner mould mounted on a slide, outer moulds mounted on a second slide, a pair of flanging members pivoted on the machine frame, a lever pivotally connected at one end to the second slide and at the other end to a link pivoted on the machine frame, a toggle link pivotally connected at one end'to the lever and at the other end to one end of a second toggle link, an eccentric to which the other end of the second toggle link is connected, an operator-actuated means for straightening the toggle links and moving the second slide towards the rst slide and for causing the outer moulds to close around the inner mould, power operated means for rotating the eccentric and causing through the straightened toggle the inner and outer moulds and their slides to move relatively to the flanging members, and diverging grooves in said rst slide, which grooves are engaged by blocks on said anging members,
which blocks cause the flanging members to move apart, to flange the upper, during the movement of said rst slide.
6. In a machine for forming flanges on shoe uppers, the combination of an inside former to receive the end portion of an upper with its marginal portion projecting beyond the bottom of the former, an outside former, manually operated-means for moving the formers relatively to each other to engage the upper, upper-dangling means. and power-operated means for moving the formers relatively to the anging means to form a iiange on the upper.
7. In a machine for forming flanges on. shoe uppers, the combination or" an inside former to receive the end portion of an upper with its ginal portion projecting, beyond the bottom of the former, an outside former, manually operated means for moving the outside former relative- 4ly to the inside former to engage the upper, up-
'aarspna pereflangingmeans; and powelboperated' vmeans formoving the-formers'v'relatively to vtliefflanging means to-form a flange on tne` upper.
8; In a machine for forming flanges on shoe uppers, the combination of a movable inside former toreceive--tlie end portion of an upper with its marginal portion projecting beyond t'ne bottomlof the former; a movable outside former, manually opera-ted means for movingv the outs-ide formerrelatively to the inside former to engage the upper, upper-angimzV means held from movem'ent'with the farmers, andpovfer-operated meansf'orl movingthe-formers relatively to tite flangin'g means to'form-aange on the upper'.
9'; Int ai machine for forming flangeson' shoe uppers, tlie combination of a movable ii 'fde former'to receive the end' portion of an upper with itsmargnal portion projecting beyond bottompi" the former; a movable outside" manually operated .means including' a toggle for movingzthe outsidev former` relatively tor tie-in= side former to en'gage'ti'ieupper, uppereflanging means hield' from" movement with. the formels. and" power-operated means including eccentric' for moving the formers relatively toi-'tiie flahging. means toform a. flange on the upper.
10;' In a machine for forming. flanges onshoe uppers, the combination of a movable inside former to receive the end portion of an upper 'with its marginal portion projecting beyondV the bottom oftheformer; a movable outside former, manually operated means including an inverted toggle' for moving the. outside former relatively tov the inside former to engageA theupper, upper- 'anging means` held; from movement with the formers; Vand power-operated means including' an eccentric' acting through theinverted toggleA for moving3 the formers 'relatively to-theangin means to formaangeon theupper:
l1.` In a machineY forforminglanges=on-shoe uppers,` the combinationV ofi a movable inside former to receive the end portion of-anL upper With its-marginalportion projecting beyond"V the bottom of the former, amovable outside. former, manually operated' means including.u a. toggle:` for movingthe outside former relatively tot` the'. insideformer to engage the upper,.upper:'flanging means held from. movement vvitln'A the' formers, andr power-operated means including.' an. eccentric acting through the'4 toggle. for moving. j..thelv formers, relatively to* theiianging. means toform aiiange onthei upper.
12. In` a Vmachine for forming. flanges' on shoe uppers, the. combination of an. inside-former to l receive theend -lportion of anupperxwith its= ma-r ginal portion projecting-Y beyond 'the bottom; of theaformer.; a: two-part outside formen arranged toapproach: and closeuporr the; insideY former,
.manually operated means for; opera-ting the .Loutside-.former relatively to` the inside Yformer tor' conform the upper tothe inside former, expansible. up1 er1ianging` means,. and power-operated Ameans for movingA the formers. relatively tov the anging .means and. toA expandA the, anging meansto forma flange on .the upper.
13. In a machiney for forming flanges .onshoe uppers,p the combination of an inside former to receive the end portionof' anV upperwith itsmarginal portion projecting beyond the bottom of the former, means yieldingly opposing endwisemove- 71V mentof the inside former,V anoutside former'comprising'two' partsV arranged to' move towardand close upon the inside former, means underc'onper'eandr "s-'liape-l it--to theinside'-` former; upperflanginef-fmeans -lield-from movement endwiseaof tlie'r inner'fo'rmen and:y powereoperated' meansl for moving/tneformersarelatively to: .tlief Hanging meansltolfforml ananges on tlie upper.l While form'- i'ngr-pressurerisf appliedLto-'thefupperf by overcomeing themeansfor-yieldingly opposingsmovement of the insidie-forrneraH 14. armacliine for. forming fn'anges: on shoe uppers, the eombi-'nationh of Y an.: inside .form-er:V .to receive the end-portion -of :an upper With-lits' marginal' portionAv projecting; beyond".l the bottom: of the-former, a :spring opposing' endlvvise movement ortho-inside formen, anl'outside' former; manually'operatedmeansifort-movingthe` formersL relatVeIy'tUeaGh othertofengagethe upper,l upperffangingvmean's hel'd from movement endwise= of tliefinside former,U and. povver@operatedV means connected-to theA outside former fonmovingi the formers` in yopposition t0 said springAv relatively l`to the anging "means-to vshape the' upperf and'it'o form aangeonthe upper-aY 1:5.' In ya lmachine for forming flanges-on shoe uppers, the combination-of an vin'sideformer to Y receive=tha end? portion ofi anfupper withiits marginali portionfprojecting beyondl 'the' bottom fof the former; an outside` formen adapted to close about theinsideformer; -manually-operatedmeans for: closing thev outside' former and" moving the formers relatively to eaclijotherto .ca-use the upper lto1be Wrapped` abouttlie insid'efformer fand rubbed lengthwise thereof; upper-danging means heldfromlvmovement with-the formers;-andpower operated means; for 'movingl tlieffo'rmersfrelatively toY the Hanging meansto form a flange Aon tlieupper;
161-fIn alfmacliine for formi-ng iangesv on. shoe uppers; Y the corn'loination` of afA movable inside for-mer toF receivetheend* portion of. an upper with its marginal portion projecting beyond the bottom ofthe'vformer, a movable outside former, manually operated: means including va togglefor `mov-ingthe` outsidenformer relatively to theinsidefrmer' toi-engage the upper; upper-flanging 'means'held frommovementr with the formers,
, power:operated means'including an eccentric acttrol ofthe operator for'moving the outside-former u relatively'to tlieinside` former toengage theup 75 Vtively'tetliein'side formerto"engagevthe upper ingA through the toggle for-moving the formers relatively tethe anging means to form a flange on=theuppe1'; and means -to prevent breakingof the togglewhile-theeccentric' is acting.
1'7."Ifn-' amachine for forming flangeson shoe `uppers,-the'combination of an inside*l former to receive'tneendportion of an upper Withits'marginal'portion"projecting beyond the bottom of the fennel,` a v two-partu outside former arranged yto approaclrand-close upon the insideformer, means foroperating theoutside former relativelyr to` the insidee'formerto yWipe'A the upperI lengthwiseV and torconfornrthe Lupperr to the insidev former, Ia twopart" upper-Hanging means; g thevv parts being pivoted'together'and presentinga continuous upper-- engaging-edge,- .and means for movingthe form'ersfrel'atively `to* the anging meansv and" `to v separate' the" flanging lmeans about said pivot to i formfa fla-nge onA` the end" and sides oftheV upper.
18 lIn a: machinefor forming flanges on shoe uppers, the combination of; an inside formerto j receive-"the endlportion ofV an upper with its-'margin'al portion projectinglbeyond the bottom of the former, a springopp'osin'g endwise movement/of tlieinsideformer; an outsideformer comprising two parts arranged to movel toward land close upon' the inside former, vmeans under'control of the operator'- for imoving'tne outside Vformerjrelaandshape yit to the inside former, upper-flang- 'ing -means held from movement endwise of the inner former, power-operated means for moving the formers relatively to the flanging means to form a flange on the upper While forming pressure is applied to the upper by overcoming said spring, and means for yieldingly holding the flanging means toward the outside former.
19. In a machine for forming anges on shoe uppers, the combination of an inside former to Vreceive the end portion of an upper with its marginal portion projecting beyond the bottom of the former, a spring opposing endwise movement .of the inside former, an outside former, manually operated means for moving the formers relatively to each other to engage the upper, upper-ilanging means heldA from movement endwise of the inside former, power-operated means connected to the outside former for moving the formers, in opposition to said spring, relatively to the flanging means to shape the upper and to form a flange on the upper, and a spring for holding the anging means toward the outside former to press the formed flange.
20. In a machine for forming anges on shoe uppers, the combination of an inside former to receivethe end portion of an upper with its marginal portion projecting beyond the bottom of the former, a two-part outside former adapted to close about the inside former, the joint between 'the parts of the outside former being at one side of a vertical plane passing lengthwise centrally through the inside former, means for closing the outside former and moving the formers relatively to each other to cause the upper to be wiped lengthwise against the inside former, upperanging means held from movement with the `Vformers, and means for moving the formers relatively to the flanging means to form a flange on the upper.
21. In a machine for forming flanges on shoe uppers, the combination of an inside former to receive the end portion of an upper with its mar- --ginal portion projecting beyond the bottom of the former, a two-part outside former, a carrier for each part of the outside former, said carriers be- I ing arranged to close about a center lying in a vertical plane passing centrally through the inside former, means for operating the carriers to cause the outside former to wipe the upper length- Y wise and conform it to the inside former, a twopart upper-flanging means, and means for moving the formers relatively to the fl'anging means and .carrier for each part of the outside formerya slide for moving the carriers, a link connecting I each carrier to the slide, friction means connected to the carriers between the links to cause the carriers to close about the links when the slide is moved, upper-anging means held from movement lengthwise of the inside former, and means for moving the slide to cause the formers to shape the upper and to move relatively to the anging means to form a flange on the upper.
23. In a machine for forming flanges on shoe uppers, the combination of an inside former to receive the end portion of an upper with its margin projecting beyond the bottom of the former, a two-part outside former, a slide, a carrier for each part of the outside former, a link connecting each carrier to one part of the outside former, means restraining bodily movement of the carriers, an inclined spring plunger connected to each carrier so that bodily movement of the carrier lengthwise of the inside former will cause the carriers to close toward the inside former, upperflanging means held from movement with the formers, and means for moving the slide and formers relatively to the anging means to shape the upper and form a flange on the upper.
24. In a machine for forming flanges on shoe parts, the combination of an inside former to receive the end portion of an upper with its marginal portion projecting beyond the bottom of the former, an outside former, means for moving the formers relatively to each other to engage the upper, an expansible upper-Hanging means held from movement; with the inside former and having a groove in its periphery, an expansible gage lying parallel to the bottom of the inside former with its edge in said groove, and means connected to the outside former for moving the formers relatively to the anging means and for expanding said anging means to form a flange on the upper.
25. In a machine for forming anges on shoe uppers, the combination of an endwise movable inside former to receive the end portion of an upper with its marginal portion projecting beyond the bottom of the former, said former being arranged to rock laterally, a movable outside former having a plurality of parts adapted to close on the inside former, manually operated means for closing the outside former relatively to the inside former to engage the upper and apply equal pressure to the two sides thereof, upperanging means held from movement with the formers, and means for moving the formers relatively to the flanging means to form a flange o the upper.
26. In a machine for forming flanges on shoe uppers, the combination of a movable inside former to receive the end portion of an upper with its margin projecting beyond the bottom of the former, a movable outside former, means for moving the outside former relatively to the inside former to engage the upper, expansible upper-flanging means held from movement with the formers, a gage lying parallel to the bottom of the inside former to limit the projection of the marginal portion of the upper beyond the bottom of the inside former, said gage being in two pivoted parts, a spring holding said parts t0- gether to embrace the flanging means, a stud perpendicular to the bottom of the inside former and carrying said gage, means for axially moving and holding said stud to locate the gage at predetermined distances from the bottom of the inside former, and means for moving the formers relatively to the flanging means Vand to expand the flanging means to form a flange on the upper.
27. In a machine for forming flanges on shoe parts, the combination of an inside former to receive the end portion of an upper with its marginal portion projecting beyond the bottom of the former, an outside former, an expansible upper-flanging means having a groove in its periphery, an expansible gage lying parallel to the bottom of the inside former with its edge in said groove, spring means for holding the edge of the gage in theV bottom of the groove, and means connected to the outside former for moving the formers relatively to the flanging means and for expanding said flanging means to form a ange on the upper.
28. In a machine for forming anges on shoe uppers, the combination of a movable inside former to receive the end portion f an upper with its margin projecting beyond the bottom of the former, a movable outside former, expansible upper-anging means held from movement with the formers, a gage lying parallel to the bottom of the inside former to limit the projection of the marginal portion of the upper beyond the bottom of the outside former, said gage being in two pivoted parts, a spring holding said parts together to embrace the anging means, means for moving said gage perpendicular to its own plane to locate it at predetermined distances from the bottom of the inside former, and means for moving the formers relatively to the Hanging means to expand the flanging means to form a flange on the upper.
29. In a machine for forming anges on shoe uppers, the combination of a movable inside former to receive the end of an upper with its marginal portion projecting beyond the bottom of the former, a movable outside former, manually operated means including a toggle for moving the outside former relatively to the inside former to engage the upper, upper-hanging means held from movement with the formers, power-operated means including an eccentric for moving the formers relatively to the anging means to form a iiange on the upper, and means for preventing operation of the eccentric until the toggle has been operated.
30. In a machine for forming anges on shoe uppers, the combination of a movable inside former to receive the end of an upper with its marginal portion projecting beyond the bottom of the former, a movable outside former, a powerdriven shaft, a clutch to connect the shaft to the machine, a manually operated lever for setting the clutch, a latch normally preventing operation of said lever, a toggle for moving the outside former relatively to the inside former to engage the upper, means operated by the toggle for releasing the latch, upper-hanging means held from movement with the formers, and an eccentric acting through the toggle for moving the formers relatively to the anging means to form a ilange on the upper.
31. In a machine for forming anges on shoe uppers, the combination of an inside former to receive the end portion of an upper with its marginal portion projecting beyond the bottom of the former, a, spring opposing endwise movement of the inside former, an outside former, manually operated means for moving the formers relatively to each other to engage the upper, upperflanging means held from movement endwise of the inside former, power-operated means connected to the outside former for moving the formers in opposition to said spring, and means for positively restoring the inside former to its initial position.
32. In a machine for forming flanges on shoe uppers, the combination of aninside former to receive the end portion of an upper with its marginal portion projecting beyond the bottom of the former, a spring opposing endwise movement of the inside former, an outside former, manually operated means for moving the .formers relatively to each other to engage the upper, upperlanging means held from movement endwise of the inside former, power-operated means connected to the outside formerV for moving the formers in opposition to said spring, a lever engaging the inside former, and a, cam acting on said lever for positively restoring the inside former to its initial position.
33. In a machine for forming shoe uppers, the combination of an inside former to receive the end portion of an upper, a spring opposing end- Wise movement of the former, a. slide movable lengthwise of the former, an outside former carried by the slide, springs opposing movement of the slide toward the inside former, power means for moving the formers in opposition to said springs, and means for exerting a braking action 0n said power means during reaction of the springs.
34. In a machine for forming flanges on shoe uppers, the combination of an inside former to receive the endl portion of an upper with its margin projecting beyond the bottom of the former, a spring opposing endwise movement of vthe former, a slide movable lengthwise of the former,
an outside former carried by the slide, springs'` opposing movement of the slide toward the inside former, an upper-hanging device held from movement with the formers, power means for moving the formers in opposition to said springs relatively to said anging device to form the iiange, a brake shoe, and an eccentric acting on the brake shoe during the reaction of said springs.
WILF'RID THOMAS MINETT.
US376277A 1940-01-31 1941-01-28 Shoe upper flanging machine Expired - Lifetime US2318703A (en)

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