US3241164A

US3241164A - Lasting machine having spindle brake

Info

Publication number: US3241164A
Application number: US266150A
Authority: US
Inventors: Jacob S Kamborian
Original assignee: Individual
Current assignee: Individual
Priority date: 1963-03-15
Filing date: 1963-03-15
Publication date: 1966-03-22
Anticipated expiration: 1983-03-22

Description

V March 22, 1966 J, 5, KAMBQRIAN 3,241,164

LASTING MACHINE HAVING SPINDLE BRAKE Original Filed Oct. 12, 1961 16 Sheets-Sheet 1 INVENTOR. Jacob 5. Kambor/an W211 ATTY March 22, 1966 J. 5. KAMBORIAN 3,241,164

LASTING MACHINE HAVING SPINDLE BRAKE Original Filed Oct. 12, 1961 16 Sheets-Sheet 2 March 22, 1966 5, KAMBQRIAN Q 3,241,164

LASTING MACHINE HAVING SPINDLE BRAKE l6 Sheets-Sheet 5 Original Filed Oct. 12, 1961 FIG-3 March 22, 1966 s, KAMBORIAN 3,241,164

LASTING MACHINE HAVING SPINDLE BRAKE Original Filed Oct. 12, 1961 16 Sheets-Sheet 4 FIG. -4

March 22, 1966 J. 5. KAMBORIAN LAS'IING MACHINE HAVING SPINDLE BRAKE l6 Sheets-Sheet 5 Original Filed Oct. 12, 1961 March 22, 1966 J. s. KAMBORIAN 3,241,164

LASTING MACHINE HAVING SPINDLE BRAKE I Original Filed Oct. 12, 1961 1a Sheets-Sheet e 1 link March 22, 1966 J. 5. KAMBORIAN LASTING MACHINE HAVING SPINDLE BRAKE l6 Sheets- Sheet '7 Original Filed Oct. 12, 1961 March 2 19 6 J. s. KAMBORIAN 3,241,154

LASTING MACHINE HAVING SPINDLE BRAKE Original Filed Oct. 12, 1961 16 Sheets-Sheet a March 22, 1966 J. 5. KAMBORIAN LASTING MACHINE HAVING SPINDLE BRAKE 16 Sheets-Sheet 9 Original Filed Oct. 12, 1961 March 22, 1966 5, KAMBORIAN 3,241,164

LASTING MACHINE HAVING SPINDLE BRAKE Original Filed Oct. 12, 1961 16 Sheets-Sheet 10 F/Gr26 256 Q I k\\\\\\ -242 240/ /5z\k /AHW////// /1 F/G. 25A FIG-25B March 22, 1966 J. 5. KAMBORIAN 3,241,164

LASTING MACHINE HAVING SPINDLE BRAKE Original Fi'led Oct. 12, 1961 16 Sheets-Sheet 11 a Q Q 1 5% Qww www Rm Qw .m.

J. S. KAMBORIAN LASTING MACHINE HAVING SPINDLE BRAKE Original Filed 001;. 12, 1961 March 22, 1966 16 Sheets-Sheet 12 g WNW r k. m wig EVE March 22, 1966 J. s. KAMBORIAN LASTING MACHINE HAVING SPINDLE BRAKE 16 Sheets-Sheet 15 Original Filed Oct. 12, 1961 March 22, 1966 J 5, KAMBQRIAN 3,241,164

LASTING MACHINE HAVING SPINDLE BRAKE Original Filed out. 12, 1961 16 Sheets-Sheet 14 MAT QTSMMW March 22, 1966 J. s. KAMBORIAN LAS'IING MACHINE HAVING SPINDLE BRAKE Original Filed Oct. 12, 1961 16 Sheets-Sheet 15 March 22, 1966 I 5 KAMBQRIAN 3,241,154

LASTING MACHINE HAVING SPINDLE BRAKE Original Filed Oct. 12, 1961 16 Sheets-Sheet 16 United States Patent 3,241,164 LASTING MACHINE HAVING SPINDLE BRAKE Jacob S. Karnborian, 133 Forest Ave., West Newton, Mass. Continuation of application Ser. No. 144,696, Oct. 12, 1961. This application Mar. 15, 1963, Ser. No. 266,150 14 Claims. (Cl. 12-401) This application is a continuation of pending application Serial No. 144,696 filed October 12, 1961, and now abandoned.

This invention relates to a lasting machine such as that disclosed in copending application Serial No. 107,156 filed May 2, 1961, now Patent No. 3,189,924.

The copending application discloses a machine for assembling a shoe upper on a last and wiping the heel portion of the upper upon an insole located on the last bottom that includes a spindle pivotally mounted, for movement toward and away from a heel seat lasting unit, on the piston rod of an air actuated motor. A last supporting means is mounted at the top of the spindle. A swivel block is pivotally mounted on the spindle below the last supporting means for swinging movement about the axis of the spindle, and an upper tensioning unit is mounted on the block. The upper tensioning unit comprises a toe rest roller, a pair of toe pincers and two pairs of side pincers. The heel seat lasting unit, which is movable from an out-of-the-way position to a working position, comprises heel clamping means and wiping means movable in a predetermined plane. A hold-down unit is also provided that includes a hold-down foot normally positioned slightly below the bottom of the wiping means.

In operating the machine, a last having an upper mounted thereon and an insole located on its bottom is placed bottom-up on the last supporting means so that the toe of the last and upper is supported or held by the toe rest roller and the toe and forepart portions of the upper are respectively gripped and held by the toe and side pincers. The pincers are then moved forwardly in unison to stretch the upper about the last, the spindle is then swung about the piston rod to a position adjacent the heel seat lasting unit, the piston rod is elevated to force the insole against the hold-down foot and clamp the shoe and last between the hold-down foot and the last supporting means, the pincers are raised in unison to stretch the upper tightly on the last, the heel seat lasting unit is moved from its out-of-the-way position to its working position, the clamping means are actuated to clamp the upper against the last, the wipers are moved forwardly to wipe the margin of the upper upon the insole, and the hold-down foot is raised during the forward movement of the wipers to apply bedding pressure by the application of force by the motor directly against the bottom of the wiping means.

It is desirable that, when the heel clamping means engages the last, the heel of the last be symmetrically disposed with respect to the center line of the Wiping means and clamping means. The line of symmetry of the heel of the last varies dependent on the size and style of the last and on whether a left or right foot last is used. The instant invention provides an arrangement for locking the swivel block to the spindle in such a position that, for the particular last used, the heel of the last is in proper alignment with the center line of the wiping and heel clamping means. This arrangement comprises a brake movable radially in a hole in the swivel block toward and away from the spindle and an air actuated motor mounted on the swivel block having a piston rod in alignment with the brake. A manually actuated valve is provided which normally supplies air under pressure to the motor to cause its piston rod to push the brake against the spindle and thus lock the swivel block to the spindle. The valve may be actuated to cut off the air to the motor, at which time the swivel block is swung to a selected 3,241,164 Patented Mar. 22, 1966 position about the spindle and relocked to the spindle upon release of the valve.

Reference is now made to the accompanying drawings wherein:

FIGURE 1 is a side elevation of the machine;

FIGURE 2 is a front elevation of the machine; b1 FIGURE 3 is an elevation of the spindle and swivel ock;

FIGURE 4 is a plan view of the swivel block;

FIGURE 5 is a view taken along the line 55 of FIG. 4;

FIGURE 6 is a side elevation of the upper tensioning unit;

FIGURE 7 is a front elevation of the upper tensioning unit;

FIGURE 8 is a side view of the mechanism for swinging the spindle and the upper tensioning unit;

FIG. 9 is a view taken on the line 99 of FIG. 8;

FIGURE 10 is a detail of the mechanism for moving the heel seat lasting unit from its out-of-the-way position to its working position;

FIGURE 11 is a view taken on the line 11-11 of FIG. 10;

FIGURE 12 is a vertical section through the heel seat lasting unit;

FIGURE 13 is a detail, partly in section, of the heel seat lasting unit and the hold-down unit;

FIGURE 14 is a plan view of the heel clamping means;

FIGURE 15 is a side elevation of the heel clamping means;

FIGURE 16 is a detail of an auxiliary presser member;

FIGURE 17 is a plan view of the wiping means;

FIGURE 18 is a side elevation of the hold-down unit;

FIGURE 19 is a view taken along the line 19-19 of FIG. 18;

FIGURE 20A is a plan view of a shoe and last after they have been placed in the machine and the upper has been gripped by the front and side pincers;

FIGURE 20B is a view taken along the line 20B-20B of FIGURE 20A;

FIGURE 21 is a showing of the shoe and last after the shoe has been brought to bear against the hold-down oot;

FIGURE 22 is a plan view of the shoe as it is clamped by the heel clamping means;

FIGURE 23 is a section showing the shoe after it has been clamped by the heel clamping means;

FIGURE 24A is an elevation in section showing the heel portion of the shoe and last at the completionof the machine cycle;

FIGURE 24B is a view taken along the line 24B24B of FIG. 24A;

FIGURE 25A is a representation of the position in which the swivel block is locked to the spindle when operating on a right foot last;

FIGURE 25B is a representation of the position in which the swivel block is locked to the spindle when ope-rating on a left foot last; and

FIGURE 26 is a diagrammatic representation of the control for the motor that actuates the spindle brake.

The machine comprises a frame 10 having an inclined plate 12 (FIG. 1). An air actuated motor 14 mounted on the plate 12' has a piston rod 16 extending upwardly therefrom that is vertically guided in a guide bearing 18 secured to the frame. A post 20 is pivotally secured to the piston rod 16 by a pivot 22. A rod 24 is received in a socket in the upper end of the post 20. A collar 26 (FIG. 3) is slidably mounted on the rod 24. A rotatable shaft 28 is threaded into the collar 26, whereby rotation of the shaft adjusts the position of the collar on the rod. A sleeve 30 is slidably mounted on the rod 24 and rests on the collar 26. A swivel block 32 (FIGS. 4 and 5) is pivotally mounted on the sleeve for swinging movement about the axis of the sleeve with the bottom of the block 32 resting on the collar 26, and a snap ring 34 in the sleeve 30 engaging the top of the block 32. A last pin holder 36 is mounted at .the upper end of the rod 24. A last supporting 'plate 38 having a convex lower surface is received in a concave groove at the top of the last pin holder 36, and a last pin 40 is secured to the last pin holder and projects upwardly therefrom through a hole in the last supporting plate 38.

Members

20, 24, 26 and 30 form the aforementioned spindle and

members

38 and 40 form the aflorementioned last supporting means.

An air actuated motor 42 (FIGS. 4 and 5) is secured by bolts 44 to the rear of the swivel block 32. A slide 46 is slidably mounted in a hole 48 in the block 32, with the slide in alignment with the piston rod 50 of the motor 42. A brake pad 52 made of resilient, flexible material is secured to the front of the slide 46, the pad having a concave face corresponding in shape to the outer periphery of the rod 24. The slide and brake pad comprise the aforementioned brake. A cut-out 54 is provided in the sleeve 30 to accommodate the brake pad 52. A pin '56 mounted in the block 32 is received in a peripheral groove 58 in the slide 46 to prevent rotation of the brake about its axis.

The swivel block has a groove 60 on each side thereof, and parallel bars 62 are rigidly mounted in each groove 60 to extend forwardly of the block 32. An air operated motor 64 is pivotally connected to each bar 62 to extend forwardly of the block 32. The piston rods 66 of the motors 64 are rigidly connected to a head 68 forming part of an upper tensioning unit 70 that is slidably mounted on the bars 62.

Referring to FIGS. 6 and 7, the unit 70 includes a toe rest roller 72 mounted on a toe post 74, the toe post and the toe rest roller being connected to a wheel 76 whereby rotation of the wheel imparts a heightwise adjustment of the toe post and toe rest roller. An air operated motor 78 mounted on the unit 70 has a piston rod 80 that is connected to a T-bar 82 that is slidably mounted for upand-down movement in the unit 70. At the top of the upright limb 84 of the T-bar, there is mounted a front pincers bracket 86. The bracket 86 has a pair of upright slots 88 which receive studs 90 that are threaded into the T-bar 82 to thereby adjustably mount the bracket 86 on the T-bar. A pincers 92 is mounted on the bracket 86. The pincers 92 comprises a stationary pincers jaw 94 n'igidly connected to the bracket 86 and a movable pincers jaw 96 swingably mounted on the bracket 86. An air operated motor 98, mounted on the bracket 86, has a piston rod 100 engageable with the pincers jaw 96, the latter member being normally urged to open position by a spring 102. A side pincers bracket 104 is slidably mounted on each prone leg 106 of the T-bar 82. A shaft 108 having right and left hand threads at its opposite ends is screwed into bosses 110 that are secured to the side pincers bracket 104. Each bracket 104 supports a side pincers 112. Each side pincers 112 comprises a fixed jaw 114 rigidly connected to a bracket 104 and a movable jaw 116 pivotally mounted on a bracket 104 by a pivot 118 and pivotally connected to the piston rod 120 of an air operated motor 122 that is secured to an extension 124 on each bracket 104. The position of the brackets 104 and the pincers 112 carried thereby may be adjusted by rotating the shaft 108.

The post 20 is pivotally connected to the legs 126 of a forked pitman 128 that straddles the post (see FIGS. 8 and 9). The pitman 128 is pivotally and eccentrically connected to a crank 1130. The crank 130 is connected to a shaft 132 which in turn is pivotally mounted in the frame 10. The shaft .132 has a gear 134 secured thereto that is in mesh with a rack 136 mounted on a D-shaped rack support 138, the rack being slidably guided in gibs 4- 140 located in the frame 10. An air operated motor 142, mounted in the frame 10, has a piston rod .144 connected to the rack support 138 to effect vertical movement of the rack 136 and hence swinging movement of the post 20 about the pivot 22. A shock absorber 146 is interposed between the frame 10 and the rack 136 to eliminate chattering and ensure a smooth operation when the rack is caused to move upwardly or downwardly in the frame.

A heel seat lasting uni-t 148 is mounted in the frame 10 rearwardly of the upper tensioning unit 70. Referring to FIGS. 10 through 17, the unit 148 comprises a main slide plate 150 slidably mounted for forward and rearward movement on gibs 152 in the frame 10 (see FIG. 12). A block 154 is secured to the plate 150 and is slidable in a slot 156 formed in a table 158, which table forms a part of the frame 10. A floating actuator 160 is secured to the block 154. The actuator 160 comprises a bar 162 depending from and rigid with the block 154. An air operated motor 164 is pivoted to the bar 162 and has a piston rod 166 extending upwardly therefrom. A pair of toggle links 168 and 170 are pivoted at their adjourning ends to the piston rod 166 and are respectively connected at their opposite ends to the bar 162 and to a nut 172. A screw 174 is rotatably mounted in hangers 176 and 178 depending from the table 158, extends through a clearance opening 180 in the bar 162 and is threaded into the nut 172. The screw 174 is connected through a gear train 182 and a shaft 184 to a wheel 186. Thus, rotation of the wheel 186 causes the nut 172 to move axially of the screw 174 and causes the floating actuator 160, the block 154, the main slide plate 150 and the members carried thereby to move forwardly or rearwardly in the frame. Actuation of the motor 164 to open or close the toggle linkage formed by the members 166, 168 and 170 will also cause the main slide plate 150 and the members carried thereby to move forwardly or rearwardly in the frame.

A pair of air actuated motors 188 are mounted on the plate 150 (FIGS. 14 and 15). Each motor 188 has a piston rod 190 that is pivotally connected to a lever 192 by a pivot 194. The levers 192 have legs 196 extending toward each other from the pivots 194 and legs 198 extending forwardly and divergently from the pivots 194. The legs 196 are pivotally connected by pivots 200 to a slide 202. A pair of tension springs 204 and 206 are connected at their opposite ends to arms 208 that are fixed to the legs 196. The springs force the levers 192 about the pivots 194 to the position shown in FIGURE 14 where the contiguous faces of the legs 196 abut each other. The slide 202 is slidably mounted in gibs 210 mounted on the plate 150. The lever legs 198 have studs 212 adjustably mounted in their extremities, and the studs 212 are affixed to the ends of a U-shaped heel clamping pad 214 made of a flexible material such as leather. A pair of sprocket chains 216 are wrapped around the outer periphery of the pad 214. Each chain 216 is anchored at one end to a stud 212 and is secured at its other end to a projection 218 extending forwardly of the slide 202. A pair of spring return air actuated motors 220 are mounted in each of the lever legs 198 (FIGS. 14 and 16). The motors 220 have pistons 222 extending toward the pad 214 below the chains 216. A pressor member 224 is aflixed to each piston 222.

A bridge 226 is anchored at its end to the sides of the main slide plate 150 and extends thereover. An air operated motor 228 is secured to a rib 230 at the rear of the main slide plate 150. The piston rod 232 of the motor 228 has a rack 234 thereon that is in mesh with a gear 236 rotatably mounted beneath the bridge 226 on a pin 238 fixed in the bridge. A wiper supporting slide plate 240 is slidably mounted on gibs 242 in the frame (FIG. 12). The plate 240 has a slot 244 extending transversely to the rack 234 which receives an eccentrically mounted crank pin 246 depending from the gear 236. The piston 232 has an enlargement 248 to which are pivoted the ends of links 250. The opposite ends of'the links 250 are pivoted to wiper cams 252, and a Wiper 254 is mounted in each wiper cam. The wiper cams 252 have curved cam slots 256 with a center of curvature at the point where the wipers diverge from each other, indicated by the numeral 258 in FIG. 17. The wiper cams 256 rest on the plate 240, and the plate 240 has rollers 260 extending upwardly therefrom into the cam slots 256.

A hold-down unit 262 is mounted on a frame cover 264 located above the

plates

150 and 240 and the wiper cams 252. The unit 262 comprises a lever 266 pivoted to a clevis 268 on the cover 264 by a pivot 270 (see FIGS. 13 and 18). A link 272 is pivoted to the cover 264 below the pivot 270, and both the lever 266 and the link 272 are pivotally connected to a hold-down foot 274. The lever 266, link 272 and foot 274 thus form a parallel linkage mechanism whereby counterclockwise movement of the lever (FIG. 18) imparts a substantially rectilinear downward movement to the foot 274 and clockwise movement of the lever 266 imparts a substantially rectilinear upward movement to the foot 274. A pin 276 is rotatably mounted in the cover 264 rearwardly of the pivot 270, and a roller 278 is afiixed to the pin 276. A roller 280 is rotatably mounted in a clevis 282 that is slidably mounted for up and down movement at the rear end of the lever 266 opposite the roller 276. A screw 284 bears against the upper surface of the clevis 282 to limit the upward movement of the clevis 282 in the lever 266. An air operated spring return motor 286 is secured to the cover 264. The piston rod 288 of the motor 286 has a cam 290 secured thereto that is interposed between the

rollers

278 and 280. A tension spring 292 extending from the pin 276 to a pin 294 fixed to the lever 266 urges the roller 280 against the cam 290. The cam 290 has a high portion 296 that is normally interposed between the

rollers

278, 280. The actuation of the motor 286 to bring a low portion 298 of the cam between the rollers will cause the spring 292 to move the roller 280 downwardly against the cam portion 298, swing the lever 266, and thereby raise the hold-down foot 274, for a purpose that is explained below.

Although the apparatus of the instant invention has general utility in assembling an upper on a last and heel seat lasting the upper onto the insole, it has particular utility in carrying out the method disclosed in pending application Serial No. 80,919 filed January 5, 1961, now Patent No. 3,144,670. In the referred to method, a flaccid counter coated on both of its surfaces with adhesive is inserted in a pocket formed between an upper and a liner at the heel of the upper, the upper is draped about a last, tensioning forces are applied at the toe end of the upper to wrap the upper about the heel end of the last and initiate the molding of the counter to the shape of the last, the last is moved to a heel seat lasting position and forced upwardly'against a hold-down, upward tensioning forces are applied at the toe end of the upper to assemble the upper on the last, a clamping force is applied at the heel of the last to maintain the upper stationary on the last and to complete the molding of the counter to the shape of the last, and the margins of the upper and counter are wiped down onto an insole located on the bottom of the last to thereby unite the lasted margin of the upper to the insole by adhesively bonding the counter to the upper and insole.

wardly (FIGS. 5 and 26), cause the brake pad 52 to bear against the rod 24, and thus lock the swivel block 32 and the upper tensioning unit 70 carried thereby to the rod 24. An actuation of the valve 302 by pushing the valve stem 306 serves to cut off the motor 42 from the source of pressurized air and thus unlock the swivel block with the center line of the last.

6 32 from the rod24. The swivel block 32 may now be rotated about the axis of the rod 24 to a desired position, after which the valve stem 306 is released to lock the swivel block to the rod in the desired position.

In setting up the machine for a particular size and shape of last, the adjustments described in the aforementioned Patent No. 3,189,924 are performed. A last 308 is provided having an insole 310 mounted on its bottom and an upper 312 draped thereon. A liner 314 is secured to the heel of the upper to engage the heel of the last, and a counter 316 is located in the pocket formed between the upper and the liner. The last is placed bottom-up on the last supporting plate 38 with the pin 40 entering the conventional last pin hole in the last. The toe portion of the upper and last is supported on the toe rest roller 72.

In lasting a shoe, it is desirable that the heel be symmetrically disposed with respect to the center line of the wipers 254 and the clamping pad 214. Due to the curvature of the last, this line of symmetry does not coincide As seen in FIG. 25A, with a right foot last, the center line of the bars 62 and the upper tensioning unit '70 carried thereby is offset clockwise from the center line of the wipers 254 and clamping pad 214 in order for the line of symmetry of the heel to coincide with the center line of the wipers and the clamping pad. By way of contrast, as seen in FIG. 25B, with a left foot last, the center line of the bars 62 and the upper tensioning unit 70 carried thereby is offset counterclockwise from the center line of the wipers and clamping pad in order for the line of symmetry of the heel to coincide with the center line of the wipers and the clamping pad.

After placing the last-mounted shoe in. the machine, the valve 302 is actuated to release the brake pad 52, after which the swivel blockis swung and the valve 302 released to reapply the brake pad so that, for the particular shape and size of last utilized, the center line of the last heel is in the desired position relative to the center line of the wipers and clamping pad. The toe end of the upper is now inserted between the jaws of the toe pincers 92 and the forepart portions of the upper are in serted between the jaws of the side pincers 112. At this time the upper end of the liner 314 is substantially level with the insole 310 and the upper margins of the counter 316 and upper 312 at the heel end of the last extend above the insole 310 as indicated in FIGS. 20A and 20B.

A pedal 318 (FIG. 1) is now depressed to operate the several air actuated motors by the control system disclosed in the above referred to Patent No. 3,189,924. The

motors

98 and 122 are actuated to cause the front pincers 92 and the side pincers 112 to grip the margin of the upper as indicated in FIGS. 20A and 20B. This is followed by an actuation of the motors 64 to cause the upper tensioning mechanism including the

pincers

92 and 112 to move forwardly on the bars 62 to thereby horizontally stretch the upper in the direction of the toe of the last and cause a firm wrapping of the upper about the heel of the last and a tension force on the counter to start to mold it to the shape of the last.

The motor 142 is now actuated to lower the piston rod 144 and the rack support 138 to thereby swing the post 20 about the pivot 22 to a position where the shoe is adjacent to but not in engagement with the heel seat lasting unit 148 and the hold-down unit 262. In this position the post 20 is in an alignment with the hold-down foot 274 but the insole 310 is below the bottom of the holddown foot. In addition, in this position, the shoe upper and last are not in engagement with the heel clamping pad 214.

The motor 14 is now actuated to raise the post 20 and thus raise the last and shoe until the insole 310 bears against the hold-down foot 274. The hold-down foot at this time is'in its normal down position and is so located that its bottom is below the bottoms of the wipers 254 an amount substantially equal to the thickness of the upper margin and the counter. In this position the shoe and last are clamped between the hold-down foot 274 and the last supporting plate 38, as indicated in FIG. 21, with the upwardly facing surface of the insole slightly below the top surface of the clamping pad 214 and the bottom surfaces of the wipers 254.

The motor 78 is now actuated to raise the T-bar 82 thereby raising the

pincers

92 and 112 to apply an upward tension to the margin of the upper 312 at its toe and forepart portions to thereby stretch the upper tightly on the last and assemble it in proper position for the subsequent heel seat lasting operation. Since the last and shoe are clamped at this time between the foot 274 and the plate 38, upward movement of the pincers does not shift the last.

The motor 164 on the floating actuator 160 is now actuated to raise the piston rod 166 and straighten the toggle links 168 and 170. The straightening of the toggle links moves the block 154 and the heel seat lasting unit 148 carried thereby from its normal out-of-the-way position to a position adjacent the shoe and last.

The motors 188 are now actuated to cause the piston rods 190 to move the levers 192 and the clamping pad 214 carried thereby toward the heel of the last with the slide 202 sliding in the gibs 210. During this movement the spring 204 and 206 maintain the lever legs 196 in abutting relation and the lever legs 198 in open position until the bight 328 of the pad 214 engages the shoe as indicated in dotted lines in FIG. 22. At this time the bight of the pad and the slide can no longer move forwardly so that continued forward movement of the piston rods 190 causes the levers 192 to swing toward each other about the pivots 194 to cause the legs 322 of the pad to move toward each other and engage the shoe upper as indicated in solid lines in FIG. 22. This arrangement provides for an initial contact of the pad 214 at the heel end of the shoe and then a progressive engagement of the pad along the sides of the shoe extending forwardly of the heel to ensure a smoothening out of any wrinkles there may be in the upper and a smooth, firm clamping of the upper against the last.

The motors 220 are now actuated to force the presser members 224 against the pad 214 and thereby press the pad against the shoe and last. As seen in FIG. 23, the presser members engage the pad 214 toward the bottom opposite the portion of the last that curves inwardly to form a last portion having a relatively narrow width. The presser members 224 ensure that all of the pad 214 bears against the last 308 to thereby hold the upper firmly in place during the subsequent lasting operation and to complete the molding of the counter 316 to the shape of the last.

The motor 228 is now actuated to advance the piston rod 232, the rack 234 and the piston rod enlargement 248 to cause the wipers 254 to be moved from the dotted line position of FIG. 24B to the solid line position and wipe or fold the margin of the upper 312 and counter 316 down against the insole 310. The wiping pressure completes the molding of the counter and causes the counter, through the adhesive on its surfaces, to bond the wiped-in-margin of the upper to the insole. The forward movement of the piston rod 232, through the links 250, causes the wipers 254 to move toward each other about the point 258. The forward movement of the piston rod 232, through the rack 234, the gear 236, the slot 244 and the pin 246 also causes the plate 240 to move forwardly thereby providing a forward movement of the wipers as well as an inward movement about the point 258. Since the slot 244 extends normal to the path of movement of the piston rod 232, the movement of the slot from the rightward position of FIG. 17 to the leftward position indicated in phantom causes the plate 248 initially to move forwardly almost as fast as the piston rod 260 and then to gradually slow down, until,

towards the end of the stroke of the piston rod, the plate has substantially no forward motion. The result of this is that initially the wipers move forward with substantially no inward movement about the point 258, and at the end of the wiper stroke the wipers move toward each other about the point 258 with very little forward movement. This produces a wiping action where the force created by the wipers in moving across the insole 318 at any given point is substantially radial to the curvature of the last at that point.

During the forward stroke of the piston rod 232, the motor 286 is actuated to move the cam 290 forwardly to present the low cam portion 298 between the

rollers

278, 280 and thus cause the raising of the hold-down foot 274 as indicated in FIG. 24A. The motor now applies upward pressure by the last directly against the wipers to provide an overwiping and bedding pressure between the wipers and the wiped-in margin of the upper during the latter part of the wiper stroke and also after the termination of the wiper stroke.

This concludes the lasting operation. The pedal 318 is now released by the operator which substantially simultaneously causes the actuation of the

motors

98 and 122 to open the

pincers

92 and 112 to release the toe and forepart portions of the upper margin, the actuation of the motor 78 to lower the T-bar 82 and the

pincers

92 and 112 carried thereby to their initial position on the upper tensioning unit 70, the actuation of the motors 188 to open the clamping pad 214, the actuation of the motor 164 to return the heel seat lasting unit 148 to its original out-of-the-way position, and the actuation of the motors 64 to return the upper tensioning unit 70 to its original position on the bars 62. This is followed by the concurrent actuation of the motor 14 to lower the post 20 and thereby lower the shoe and last, the actuation of the motor 228 to retract the wipers 254, and the actuation of the motors 220 to return the pressure members 224 to their original positions. During the retraction of the wipers 254, the motor 286 is actuated to retract the piston rod 288, return the high cam portion 296 between the

rollers

278 and 280 and thereby lower the hold-down foot 274 to its original position. The motor 142 is now actuated to raise the rack support 138 and thereby swing the post 20 away from the heel seat lasting unit 148 back to its original position.

It should be understood that the present disclosure is for the purpose of illustration only and that this invention includes all modifications and equivalents that come within the scope of the appended claims. Terms in the claims such as top, below and forwardly are intended to describe the relative positions and paths of movement of the parts and should be construed accordingly.

I claim:

1. A lasting machine comprising: wiping means; shoe holding means for holding a last having a shoe upper mounted thereon and a shoe insole located on its bottom; means for imparting relative forward movement of the wiping means with respect to the holding means in a predetermined plane to wipe the margin of the upper upon the insole; a spindle, located forwardly of the wiping means, having an axis that is substantially normal to said predetermined plane during said relative forward movement; a block swingably mounted on said spindle for movement about the axis of the spindle; means connecting the shoe holding means to the block for swinging movement therewith; brake means mounted in the block; and means for moving the brake means against the spindle to lock the block to the spindle after the block has been swung to a predetermined position about said axis.

2. A lasting machine comprising: wiping means; drive means for imparting forward movement to said wiping means in a predetermined plane; a spindle, located forwardly of the wiping means, having an axis that is sub

Claims

1. A LASTING MACHINE COMPRISING: WIPING MEANS; SHOE HOLDING MEANS FOR HOLDING A LAST HAVING A SHOE UPPER MOUNTED THEREON AND A SHOE INSOLE LOCATED ON ITS BOTTOM; MEANS FOR IMPARTING RELATIVE FORWARD MOVEMENT OF THE WIPING MEANS WITH RESPECT TO THE HOLDING MEANS IN A PREDETERMINED PLANE TO WIPE THE MARGIN OF THE UPPER UPON THE INSOLE; A SPINDLE, LOCATED FORWARDLY OF THE WIPING MEANS, HAVING AN AXIS THAT IS SUBSTANTIALLY NORMAL TO SAID PREDETERMINED PLANE DURING SAID RELATIVE FORWARD MOVEMENT; A BLOCK SWINGABLE MOUNTED ON SAID SPINDLE