US3928880A

US3928880A - Lasting machine having flexible lasting strap

Info

Publication number: US3928880A
Application number: US562700A
Authority: US
Inventors: Sinville Runions
Original assignee: International Shoe Machine Corp
Current assignee: International Shoe Machine Corp
Priority date: 1975-03-27
Filing date: 1975-03-27
Publication date: 1975-12-30
Anticipated expiration: 1992-12-30
Also published as: FR2293160B1; DE2612690B2; IT1054888B; DE2612690A1; JPS5421140B2; BR7601668A; CA1040362A; DE2612690C3; JPS51120845A; FR2293160A1

Abstract

A lasting machine for operating on a shoe assembly formed of a last having an upper mounted thereon and an insole located on its bottom by wiping the side portions of the margin of an upper against the corresponding portions of an insole. The wiping is performed by flexible lasting straps having rigid top segments which are moved from a position wherein the top segments are folded part way towards the insole to positions wherein the top segments press the upper margin against the insole to wipe the upper margin against the insole and bond the wiped margin to the insole by means of cement. The machine has nozzles that travel along the corners between the upper margin and the insole periphery, while the top segments are folded part way towards the insole, and apply the cement into the corners during this travel. The shoe assembly is supported bottom-up on a support that applies a yieldable upwardly directed force to the shoe assembly.

Description

United States Patent [1 1 Runions 1 1 Dec. 30, 1975 LASTING MACHINE HAVING FLEXIBLE LASTING STRAP [75] Inventor: Sinville Runions, Booneville, Miss.

[73] Assignee: International Shoe Machine Corporation, Nashua, N.H.

22 Filed: Mar. 27, 1975 21 Appl. No.: 562,700

Lauretti 12/8.2

Primary Examiner-Patrick D. Lawson Attorney, Agent, or Firm-Albert Gordon 57 ABSTRACT A lasting machine for operating on a shoe assembly formed of a last having an upper mounted thereon and an insole located on its bottom by wiping the side portions of the margin of an upper against the corresponding portions of an insole. The wiping is performed by flexible lasting straps having rigid top segments which are moved from a position wherein the top segments are folded part way towards the insole to positions wherein the top segments press the upper margin against the insole to wipe the upper margin againstthe insole and bond the wiped margin to the insole by means of cement. The machine has nozzles that travel along the corners between the upper margin and the insole periphery, while the top segments are folded part way towards the insole, and apply the cement into the corners during this travel. The shoe assembly is supported bottom-up on a support that ap- 2 Claims, 15 Drawing Figures U.S. Patfint Dec. 30, 1975 Sheet30f11 3,928 88@ mm Dec. 30, 1975 Sheet40f1l 3,928,88

FIG 4 US Patent Dec. 30, 1975 SheetSofll 3fi288 US. Patent Dec. 30, 1975 Sheet60f11 3,9,@

U.S. Patent Dec. 30, 1975 Sheet80f11 3,928,880

Sheet 9 of 11 3 92 atent Dec. 30, 1975 US. Patent Dec. 30, 1975 Sheet 10 ofll 3,9283% BACKGROUND OF THE INVENTION In US. Pat. No. 3775797 and in patent applications Ser. Nos. 467522 filed May 6, 1974 and 530927 filed Dec. 9, 1974, there are disclosed lasting machines operable on a selected portion of a shoe assembly formed of a last having an upper mounted thereon and an insole located on its bottom by wiping the corresponding portion of the margin of the upper against the corresponding portion of the insole. These machines each include a support means for supporting the shoe assembly bottom-up with the margin portion extending upwardly of the insole portion. A lasting strap is located outwardly of the upper portion and has a relatively rigid top segment and a relatively flexible remainder extending downwardly of the top segment, the top segment and the remainder being joined by a juncture. A nozzle is located upwardly of the shoe assembly and is mounted for movement in a cement applying stroke along the corner between the margin portion and the periphery of the insole portion.

In the operation of each of these prior machines, the lasting strap is caused to so engage the upper portion as to cause the lasting strap remainder to press the upper portion against the last with the top segment extending upwardly of the insole portion and with the juncture located approximately level with the upwardly facing bottom of the insole portion. The top segment is so folded that it extends part way towards the insole portion. This is followed by a cement applying stroke of the nozzle during which the nozzle applies cement into the corner between the margin portion and the periphcry of the insole portion. After this, the top segment is further folded towards the insole so as to cause the top segment to wipe the margin portion against the insole portion in a wiping operation and bond the margin portion to the insole portion by means of the cement.

The top segment is folded part way towardsthe insole to force the upper margin against the insole periphery and create a barrier between the upper margin and the insole that inhibits the creeping of the cement between the upper margin and the side of the last. In addition, the force exerted against the upper margin pursuant to the folding of the upper margin part way towards the insole serves as a back-up to limit outward movement of the nozzle during the cement applying stroke.

SUMMARY OF THE INVENTION It is desirable that the juncture be located substantially at the level of the upwardly facing bottom of the insole during the wiping operation. However, if the juncture is at this level during the cement applying stroke the top segment tends to be folded so far towards the insole as to block the nozzle from reaching far enough into the corner between the margin portion and the insole portion to apply the cement far enough into this corner. The object of this invention is to overcome this difficulty.

In accordance with this invention, the machine is modified by having resilient means that bear against the support means in such a manner as to yieldably urge the shoe assembly portion upwardly. The lasting strap is so constructed that when the top segment is folded part way towards the insole the juncture is located below the upwardly facing bottom of the insole portion to thereby prevent the top segment from being folded too fartoward the insole portion. When the top segment is folded against the insole during the wiping operation, the pressures generated by this folding causes the part of the last that is part of the shoe assembly portion to be depressed against the force of the resilient means to thereby bring the juncture to the level of the upwardly facing bottom of the insole portion.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of the machine;

FIG. 2 is a side view of the machine;

FIG. 3 is a partially sectional elevation of the support means;

FIG. 4 is a view taken along the line 44 of FIG. 3; FIG. 5 is a side elevation of a base mounting;

FIG. 6 is a plan view taken along the line 6-6 of FIG.

FIG. 7 is a section taken along the line 77 of FIG.

FIG. 8 is a section taken along the line 8-8 of FIG. 7;

FIG. 9 is an isometric view of a side lasting instrumentality; I

FIG. 10 is a partially sectional view of a side lasting instrumentality;

FIG. 11 is a side view of the shoe assembly as it appears in the machine at the beginning of a machine cycle;

FIG. 11A is a view taken along the line 1 lA-l IA of FIG. 11;

FIG. 12 is a plan view of the shoe assembly as it appears in the machine after the side and heel portions of the upper have respectively been clamped to the last by the side lasting instrumentalities and a heel clamp;

FIG. 12A is a section taken along the line l2A--l2A of FIG. 12; and

FIG. 13 is a view showing nozzles as they appear when applying cement into the corners between the side portions of the upper margin and the corresponding portions of the insole periphery.

DESCRIPTION OF THE PREFERRED EMBODIMENT The operatoris intended to stand in front of the machine as seen in FIG. 1 and to the right of the machine as seen in FIG. 2. Directions extending toward the operator (left to right in FIG. 2) will be designated as forward and directions extending away, from the operator (right to left in FIG. 2) will be designated as rearward. The front of the machine is closest to the operator and the back of the machine is furthermost from the operator. Referring to FIGS. 3 and 4, the machine frame includes a bracket 10 having flanges 12 bolted thereto. A housing 14 is pivoted to the flanges 12 by means of a pivot pin 16 for swinging movement about the vertical axis of the pin 16. A sleeve 18 is located on the housing 14 forwardly of the pivot pin 16. An upwardly and forwardly inclined last pin 20 is secured to the top of a bar 22 that is mounted for heightwise movement in the sleeve 18. A flange 24 is mounted to the front of the bar 22 by means of screws 26 that connect the flange 24 and the bar 22 and that extend through slots 28 in the sleeve 18. A plate 30 is mounted to and extends forwardly of the flange 24.

A column 32 is mounted to and extends upwardly of the plate 30 by spaced legs 34 (FIG. 1) and an air operated motor 36 is mounted to and extends upwardly of the plate between the legs 34. The piston rdd38 of the motor 36 is secured to a post 40 and the post 40 is mounted for heightwise movement in the column 32. A toe rest 42 is mounted to thetop of the post 40 and is located forwardly of the lastpin 20. A screw 44,

threaded into aflange 46 that -is bolted to the post 40, is in alignment with a lug 48 that is anchored to the column 32.

A pair of forwardly directed wings 50 are mounted to the housing 14 and are located on opposite sides of a cam 52. The cam '52 is mounted to a bracket 54 for forward-rearward adjustment and the bracket 54 is secured to a crosspiece 56 of the machine frame. An air actuated motor 58, pivoted to the bracket 10, has a forwardly directed'piston rod 60 that is pivoted to a lug 62 of the'housingl4. The last pin20 and the toe rest 42 constitute a work support 64 for supporting a shoe assembly that is describ'ed'below; L

Duplicate side. lasting mechanisms 65 are located on opposite'sides" of the work support 64 (see FIG. 1). Referring to FIGS. 1,2 and 5-8, each lasting unit 65 includes. a table' 66 that is mounted to the machine frame on each side of the work support 64. An air actuated motor 68, mounted to each table 66, has a piston rod 70 that is secured to a frame 72. Each frarne 72 is mounted to its associated table 66 for inward-out wardr'novement by nieans'of rollers 74. A valve 76 is mounted to a bracket 78 that is secured to each table 66. The outwardly facing stem 80 of each valve 76 in registry with a rod 82 that is mounted to its associated frame 72.

A sled 84 is mounted to each frame'72 for forwardrearward movement. A shaft 86 is rotatably mounted to eaclif frame 72 and is threaded into its associatedsled 843A handle 88 is secured to each shaft 86 whereby rotation of each handle 88 effects forward rearward adjustment of -itsas'sociated sled'84 with respect to its associated tram e721 j 'Anair' dperated motor 90 is pivotally mounted to the sled 84 by a pin 92 and extends rearwardly of the pin 92. The .piston rod 94 of the motor90is pivotally connected by a pin 96 to a lug 98.;Th e lug 98 is secured to and extends outwardly of a housing 100. The housing 100 is'piv'oted to the sled84 by a pivot pin 102 for arcua'te movement about the axis of the "pin 102, the pin'l'02 being located at the inner'rear portion of the sled 84."Forwardly of the pin 102, a pin 104 'in the housing 100 is movable in an arcuatefslot 106 in the sled 84, the center of curvature of the slot 106 coinciding with the axis of the pin 102. A stud 108, mounted to the sled84, is located rearwardly of'and inregis t'ry with thelug98. v

An'upwardly concavetrack 110 in'each housing 100, extends in forward-rearward directions, slidab ly mounts a bracket 1 12. Apin 114 is moufited in each bracket 112 for heightwise movement in a slot'l 16. Each pin 114 threadedly receives abolt 118 that is rotatably mounted to its associated housing 100. A

handle 120 is mounted to the front of each bolt 118 so. a

in each bracket 112, rotatably mounts a bolt 129 that extends outwardly of its' associated bracket 1 12. A'base 130 is secured to and extends between each pair of limbs 124, the bases 130 overlying the brackets 112. A lug 132, that issecured to anddepends from the outer end of each base 130, rotatably mounts a pin 134. Each pin'134 threadedly receives its associated bolt 129. A handle'l36 is secured to the outer end of each bolt 129 whereby'rotation of each handle 136 can effect height: wise movement of its associated base 130 about the axis of its associated pins 126. g

Referring to FIGS. 9 and 10, each side lasting mechanism 65 comprises a side lasting instrumentality 138 that is mounted to each base 130. The side lasting instrumentalities 138 are constructed similarly to the side lasting instrumentalities desclos ed in applications Ser. Nos. 467,522 and 530,927. Each side lastinginstrumentality 138 comprises a plurality of supports 140 i that are located side by side on eachv base 130. An outer bracket 142 is mounted to and extends upwardly of each support 140. An inner slide bracket 144 is mounted to em support 140, inwardly of its associ: ated outer bracket 142, for inward-outward movement.

An air operated motor 146 is pivoted to each outer bracket 142 andextends inwardly thereof. Ablock 152 is mounted toeach inner slide bracket144.

Three plies of material are anchored to each block 152 by bolts 154. The outer ply is a separate outer presser strap 156 for each support 140, the middle ply isaseparateinner presser strap 158 for each support 140, andv the inner ply is a single lasting strap 160. The

straps

156, 158 and 160 are made of an elastic, flexible and deformable material'such as urethane. The top of the lasting strap 160 is formed into a plurality of rigid top segments 160a. A relatively rigid metal. clip 162 is secured to each segment 160a so as to bear against the inner face of the segment 160a. The top of each inner presser: strap;l58 is formedinto; a thickened relatively An air operated motor 168 is associated with each top segment 160a. Each motor 168 is pivoted to a bracket 170 that is secured to the top of each outer bracket 142 with the motors 168 extending inwardly of the brackets 170. A socket 172 is embedded in each lasting strap top segment 160a. Each socket 172 rotatably receives a ball 174 that is mounted to the inner end of the pistonrod 176 of its associated motor 168 to thereby provide'flexible connections betWeenthe piston rods 176 andthe lasting strap top segmer'its' 160a.

Referring to FIGS. 1 and 2, a platform 178 is located rearwardly of the work support 64 and the side lasting mechanisms 65. A heel lasting mechanism 180, as disclosed in applications Ser. Nos. 467522 and 530927, is

mounted to the platform 178. The heel lasting mecha nism includes a heel clamp 182 and a pair of heel wipers 184, the heel wipers 184 being symmetrically disposed about the forward-rearward axis of the machine and being located above the heel clamp.

In the idle condition of the machine: the motor 36 causes the piston rod 38 to move upwardly to thereby resiliently urge the toe rest 42 upwardly under the force of pressurized air in the motor 36; the piston rods 70 are retracted into the motors 68 to thus force the bases 130 into outer positions and thus position the side lasting mechanisms 65 in outer positions wherein they do not interfere with the placement of a shoe assembly on the work support 64 as described below; and the piston rods 164 are retracted into the motors 146 and the piston rods 176 are retracted into the motors 168 thus placing the side lasting instrumentalities 138 in outer positions on the supports 140. In the idle positions of the side lasting instrumentalities 138, the back end of each lasting strap 160 is in approximate vertical registry with its associated pivot pin 102.

A shoe assembly 186 (FIGS. 11 and 11A) comprising a last 188 having aninsole 190 located on its bottom and an upper 192 mounted thereon is placed bottomup on the work support 64 with the vamp of the shoe assembly resting on the toe rest 42 between upstanding toe rest flanges 194 (FIG. 1) and with the last pin inserted into the thimble 196 in the back portion of the last so that the toe of' the shoe assembly faces forwardly. The hole in the thimble 196 in which the last pin 20 is inserted has a greater inner diameter than the outer diameter of the last pin to' thereby provide play between the last pin and the shoe assembly 186. The inclined last pin engages the front of the hole in'the thimble 196. Prior to placement in the machine the shoe assembly 186 had been toe lasted. In FIGS. 11 and 11A, .the'shoeas sembly is illustrated as being for a left foot and the machine operating cycle described below will be for a left foot shoe assembly.

At the start of the machine cycle, the operator causes the motor 58 to be so operated as to retract its piston rod 60 and thereby swing the work support 64 rightwardly as seen in FIG. 1 and counterclockwise as seen in FIG. 4 about the axis of the pivot pin 16 until the wing 50 on the left side of the machine as seen in FIG.

1, which is the upper wing 50 as seen in FIG. 4, engages the cam 52 The cam 52 had beenso adjusted in forward-rearward directions that the periphery of the heel portion 198 of the left foot shoe assembly 186 is symmetrical about the forward-rearward line of symmetry 200 (see FIG. 12) of the machine and of the heel wipers 184 when the wing 50. referred to in the preceding sentence engages the cam 52. This symmetrical relationship ensures that the heel wipers 184 will efficiently perform the heel wiping operation described below. The axis of the pin 16, about which the work support 64, together with the shoe assembly 186, is swung by the motor 58 is in approximate coincidence with the heel end extremity of the shoe assembly, thus ensuring that the periphery of the heel portion 198 of the shoe assembly 186 is in the desired symmetrical location when it has completed its swing about the axis of the pin 16 for the left foot shoe assembly as described here and for the right foot shoe assembly as described below.

When the shoe assembly has been brought into the symmetrical relationship referred to in the preceding paragraph, the rightv side shank portion 202 (the bottom portion as seen in FIG. 12) of the shoe assembly 186 diverges away from the line of symmetry 200 as this shank portion extends toewardly from the breast line 204 on the right side of the shoe assembly and the left side shank portion 205 is substantially parallel to the line of symmetry 200. At the start of the machine cycle, the motor 90 on the right side of the machine as seen in FIG. 1 is actuated to project its piston rod 94 rearwardly to thereby swing the associated lug 98 rearwardly about the axis of the associated pivot pin 102 until this lug 98 engages the associated stud 108 and thereby swing the associated side lasting instrumentality 138 about the axis of the associated pivot pin 102, with the associated pin 104 moving in the associated slot 106, to a position wherein the lasting strap 160 of the associated side lasting instrumentality'is approximately parallel to the shank portion 202. Also, at the start of the machine cycle, the motor 90 on the left side of the machine is actuated to retract its piston rod forwardly into this motor 90 to thereby swing the associated lug 98 forwardly about the axis of the associated pivot pin 102 to the extent permitted by this motor 90 and thereby swing the associated side lasting instrumentality 138 about the axis of the associated pivot pin 102, with the associated pin 104 moving in the associated slot .106, to a position wherein the lasting strap 160 of the associated side lasting instrumentality 138 is approximately parallel to the shank portion 205.

Referring to FIGS. 3 and4, the bar 22, together with the support 64, is connected to the piston rod 206 of an 1 air actuated motor 208 that is mounted to the housing 14. A brake plate 210 is connected to the bar 22 for heightwise movement therewith and is located between a pair of brake arms 212 that are pivotally mounted on levers 214. The levers 214 are pivoted tothe housing 14 by means of pins 216. The back end of one ofthe levers 214 is pivotally connected to the piston rod of an air actuated motor 218 and the back end of the other lever 214 is pivotally connected to the cylinder of the motor 218.

In the manner disclosed in application Ser. No. 467,522, the motor208 is now actuated to raise the bar 22, together with the support 64, to a position wherein the insoleheel seat portion 220 (FIGS. 12-and 12A) is located substantially level with the bottoms of the heel wipers 184 in a plane substantially parallel to the plane of movement of the heel wiper's 184 as shown in FIGS. 12 and 12A. After this the motor 218 is actuated to force the brake arms 212 against the brake plate 210 to thereby lock the bar 22 and the support 64 in this position. This is followed by a forward movement of the heel clamp 182 and the wipers 184 forwardly from an initial rearward out-of-the-way position to the forward working position shown in FIGS. 12 and 12A wherein the heel clamp engages the heel. portion 198 of the shoe assembly 186 and clamps the heel portion of the upper 192 against the last and wherein the heel wipers 184 are close to but not in engagement with the heel portion of the margin 222 of the upper 192.

At about the same time as the heel clamp 182 and the heel wipers 184 are brought to the FIGS. 12 and 12A position, the motors 68 are so actuated as to project their piston rods 70 inwardly to thus move the bases 130, together with the side lasting instrumentalities 138, inwardly to positions wherein the rods 82 engage the brackets 78 and push the valve stems 80 to thereby shift the valves 76. As a result, the side lasting instrumentalities 138 are positioned close to but not in engagement with the side of the shoe assembly 186. Due to the swinging of the lasting instrumentalities 138 by the motors about the vertical axes of the pins 102,

which axes are in approximate registry with the back ends of the lasting straps 160, the lasting straps are 7 now also approximately parallel to their associated side or shank portions of the shoe assembly 186.

The shifting of the valves 76 so operates the

motors

146 and 168, in the manner shown in US. Pat. No. 3775797, as to bring the lasting instrumentalities 138 to the FIG. 13 position wherein the lasting straps 160 are pressing the side portions of the upper 192 against the side portions of the last 188 with the relatively rigid lasting strap top segments 160a extending upwardly of the insole 190 and bearing against the side portions of the upper margin 222. Each top segment 160a at this time is folded partway towards the insole 190 under a relatively low back up force applied by a motor 168 as shown in US. Pat. No. 3,775,797 to form an acute angle with the insole and thus fold the side portions of the upper margin 222 partway towards the insole.

The shoe assembly engaging parts are now in the position shown in FIGS. 12 and 12A with the heel clamp 182 pressing the heel portion of the upper 192 against the last 188 and the side lasting instrumentalities 138 pressing the side. portions of the upper against the last, the side lasting instrumentalities 138 being located forwardly of the heel clamp 172 with substantially no space between the rears of the side lasting instrumentalities 138 and the fronts of legs 226 (FIG. 12) of the clamp 182.

Now, in the manner desclosed in application Ser. No. 467,522, nozzles 228 (FIGS. 1, 2 and 13) are caused to travel rearwardly in the corners between the upper margin 222 and the periphery of the insole 190 from the boundaries between the wiped toe portion of the upper margin and the unwiped side portions of the upper margin to the heel end extremity of the shoe assembly 126 while cement is extruded from the nozzles into these corners. The nozzles 228 travel lengthwise of the shoe assembly while being urged outwardly against the upper margin. The cement is extruded from the nozzles during their travel along the insole periphery, the cement being inserted into the angle between the upper margin 222 and the insole 190. The relatively low back-up force exerted against the upper margin 222 by the lasting strap top segments 160a forces the upper margin against the periphery of the insole 190 to create a barrier between the upper margin and the insole that inhibits the creeping of the cement between the upper margin and the insole and then between the upper 192 and the sides of the last 188. In addition, the force exerted against the upper margin under the relatively low pressure by the lasting strap top segments 160a into the FIG. 13 position enables these top segments fo serve as back-up members to limit the extent of outward movement of the nozzles 228 during their travel along the insole periphery.

It is desirable that the upper margins be not folded so far towards the insole by the top segments 160a as to prevent the nozzles 228 from reaching into the corners between the periphery of the insole 190 and the upper margin 222 during the travel of the nozzles. In order to prevent this undesirable condition from happening the junctures 224 (FIG. between the relativelly rigid lasting strap top segments 160a and the relatively flexible remainders of the lasting straps 160 should be located below the upwardly facing bottoms of the insole peripheral portions that are proximate to the lasting straps as shown in FIG. 13. In order to accomplish this and to ensure that the lasting straps 160 are facing the

shank portions

202 and 205 of the shoe assembly prior to engaging the shoe assembly, the following adjustments were made by the operator, in dependence on the particular size and style of shoe assembly being operated on:

a. The handles 88 were rotated to move the lasting instrumentalities 138 forwardly or rearwardly;

b. The handles were rotated to move the lasting instrumentalities along the tracks 110, the center of curvature of the tracks 110 being substantially at the tops of the forward-rearward midportions of the lasting straps and c. The handles 136 were rotated to effect a heightwise adjustment of the lasting instrumentalities 138.

After the cement has been applied by the nozzles 228 as set forth above, pressurized air is applied by the motors 168 against the lasting strap top segments 1600 under relatively high pressure so as to cause the top segments to move inwardly from the FIG. 13 position and down against the insole to cause the clips 162 to wipe or fold the side portions of the upper margin 222 against the insole 190 in side wiping operations and thus bond these portions of the upper margin to the insole by means of the previously applied cement.

During the side wiping operations, the juctures 224 between the relatively rigid top segments 160a and the relatively flexible remainders of the lasting straps 160 should be substantially level with the peripheral portions of the upwardly facing bottom of the insole 190 that are proximate thereto. In order for this condition to take place, during the side wiping operations the lasting strap top segments 160a force the portions of the shoe assembly they engage downwardly against the upwardly directed yieldable force of the motor 36 to thereby force the toe rest downwardly until the junctures 224 are substantially level with their proximate periphal portions of the insole 190. During this downward movement of the side and toe portions of the shoe assembly 186, the front of the hole in the thimble 196 moves forwardly of the inclined last pin 20 and the planar movement of the insole heel rest 220 with respect to the bottoms of the heel wipers 184 is inconsequential. The last pin 20 acts as a fulcrum about which the shoe assembly 186 tilts during the side wiping operations, the portion of the shoe assembly located toewardly of the last pin 20 tilting downwardly and the portion of the shoe assembly located heelwardly of the last pin 20 tilting upwardly. As is clear from FIG. 12A, the side lasting instrumentalities are located toewardly of the last pin 20 to enable all of the segments 160a to force their associated portions of the shoe assembly downwardly during their side wiping operations. The clamping pressure of the heel clamp 182 against the heel portion 198 of the shoe assembly 186 is not great enough to preclude this tilting of the shoe assembly about the last pin 20.

After the lasting strap top segments 160a have forced the side portions of the upper margin 222 against the insole 190 for a sufficient length of time as to enable the side portions of the upper margin to be effectively bonded to the insole, the

motors

68, 146 and 168 are actuated to return the side lasting mechanisms 65 to their idle positions. This is followed, in the manner disclosed in applications Ser. Nos. 467522 and 530927, by a movement of the heel wipers 184 in a heel wiping stroke wherein the heel wipers 184 move forwardly and inwardly from their FIG. 12 and 12A position. During their heel wiping stroke, the heel wipers 184 engage the heel portion of the upper margin 222, that extends from the heel end extremity of the shoe assembly 186 to the rearmost ends of the side portions of the upper margin 222 that had previously been wiped against and bonded to the insole by the side lasting mechanism 65, and wipe the heel portion of the upper margin against the insole heel seat portion 220 and bondit to the insole heel seat portion by means of the previously applied cement.

At or near the end of the heel wiping stroke the motor 218 is so actuated as to cause the brake arms 212 to disengage the brake plate 210 and thus unlock the support 64 for heightwise movement. At about the same time, air is introduced under increased bedding pressure to the motor 208 to cause the support 64 to be so forced upwardly as to press the wiped heel portion of the upper margin 222 against the bottoms of the heel wipers 184 to thereby flatten the wiped heel portion of the upper margin and enhance the bond between the heel portion of the upper margin and the insole heel seat portion 220. When this bedding pressure has been applied for a sufficient length of time, the machine parts that have not already done so are returned to their idle positions and the machine cycle is completed so that the lasted shoe assembly 186 can be removed from the machine.

When operating on a right foot shoe assembly, the operator causes the motor 58 to be so operated as to project its piston rod 60 forwardly of the motor 58 and thereby swing the work support 64 leftwardly as seen in FIG. land clockwise as seen in FIG. 4 about the axis of the pivot pin 16 until the wing 50 on the right side of the machine as seen in FIG. 1, which is the lower wing 50 as seen in FIG. 4, engages the cam 52 to thus bring the periphery of the heel portion 198 of the right foot shoe assembly into symmetrical relationship with respect to the heel wipers 184.

When operating on the right foot shoe assembly, the motor 90 on the left side of the machine as seen in FIG. 1 is actuated to project its piston rod 94 rearwardly and the motor 90 on the right side of the machine is actuated to project its piston rod forwardly to thereby, in the manner described above, swing the lasting instrumentalities 138 about the axes of the pivot pins 102 to bring the lasting straps 160 to positions wherein they are approximately parallel to their associated side or shank portions of the right foot shoe assembly.

In all other respects, the machine cycle in operating on a right foot shoe assembly is identical to the above described machine cycle for operating on a left foot shoe assembly.

There follows a recapitulation of the machine construction and operation that form the basic components of this invention. The machine operates on a selected portion of the shoe assembly 186 formed of the last 188 having the upper 192 mounted thereon and the insole 190 located. on its bottom by wiping the corresponding portion of the margin of the upper against the corresponding portion of the insole. The work support 64 constitutes support means for supporting the shoe assembly bottom-up with said margin portion extending upwardly of said insole portion. A lasting strap 160, located outwardly of said upper portion, has a relatively rigid top segment 160a and a relatively flexible remainder extending downwardly of the top segment with the top segment and the remainder being joined by a juncture 224. A nozzle 228 is located upwardly of the shoe assembly and is mounted for movement in a cement applying stroke along the corner between said margin portion and the periphery of said insole portion. The motor .36 constitutes resilient means so bearing against at least a part of the support means as to yieldably urge said shoe assembly portion upwardly.

The

motors

146 and 168 constitute means that are operated, in the manner shown in U.S. Pat. No. 3775797, to so engage said upper portion as to cause the lasting strap remainder to press said portion of the upper 192 against the last 188 with the top segment 160a extending upwardly of said insole portion and with the juncture 224 located below the upwardly facing bottom of said insole portion. The motor 168 constitutes means, operated in the manner shown in US. Pat. No. 3775797, to so fold the top segment 160a that it extends part way towards said insole portion. Means shown in application Ser. No. 467,5 22 thereafter effect said cement applying stroke and cause the nozzle to apply cement into said corner during the cement applying stroke. The motors 168 and the controls therefor shown in US. Pat. No. 3775797 constitute means for thereafter further folding the top segment 160a towards the insole 190 so as to cause the top segment to wipe said margin portion against said insole portion in a wiping operation, the resilient means enabling the part of the last 188 that is part of said shoe assembly portion to be depressed during the wiping operation to bring the juncture 224 to the level of the upwardly facing bottom of said insole portion.

In the preferred embodiment of the invention, the selected portion of the shoe assembly is a side portion of the shoe assembly. In this preferred embodiment, heel wiping means, constituted by the heel wipers 184, are located rearwardly of the lasting strap and are mounted for movement from a retracted position to an advanced position in a heel wiping stroke. In this preferred embodiment the support means so supports the shoe assembly that the heel portion of the shoe assembly faces the heel wiping means and is located forwardly of the heel wiping means when the heel wiping means is in its retracted position whereby the heel wiping stroke causes the heel wiping means to wipe the heel portion of the upper margin against the insole. The support means, in this preferred embodiment, comprises the last pin 20 insertable into the hole in the thimble 196 in the last and the toe rest 42, located forwardly of the last pin, adapted to support the vamp of the shoe assembly 186, the last pin having a smaller outer diameter than the inner diameter of the thimble hole and being located rearwardly of the lasting strap 160. Finally, in this preferred embodiment, the resilient means bears against the toe rest 42 to yieldably urge the toe rest upwardly.

I claim:

1. A lasting machine, operable on a selected portion of a shoe assembly formed of a last having an upper mounted thereon and an insole located on its bottom by wiping the corresponding portion of the margin of the upper against the corresponding portion of the insole, comprising: support means for supporting the shoe assembly bottom-up with said margin portion extending upwardly of said insole portion; a lasting strap, located outwardly of said upper portion, having a relatively rigid top segment and a relatively flexible remainder extending downwardly of said top segment, said top segment and said remainder being joined by a juncture; a nozzle located upwardly of the shoe assent bly and mounted for movement in a cement applying l 1 stroke along the corner between said'margin'portion and the periphery of said insole portion; resilient means so bearing against at least a part of the support means as to yieldably urge said shoe assembly portion upwardly; means for causing the lasting strap to so engage said upper portion as to cause said lasting strap remainder to press said portion of the upper against the last with said top segment extending upwardly of said insole portion and with said juncture located below the upwardly facing bottom of said insole portion; means for so folding said top segment that it extends part way towards'said insole portion; means for thereafter effecting said cement applying stroke and for causing the nozzle to apply cement into said corner during the cement applying stroke; and means for thereafter further folding said top segment towards the insole so as to cause said top segment to wipe said margin portion against said insole portion in a wiping operation, said resilient means enabling the part of the last that is part of said shoe assembly portion to be depressed during said wiping operation to bring the juncture to the level of the upwardly facing bottom of said insole portion.

2. The machine of claim 1 wherein said selected portion of the shoe assembly is a side portion of the shoe assembly; further comprising: heel wiping means located rearwardly of said lasting strap mounted for forward movement from a retracted position to an advanced position in a heel wiping stroke; wherein said support means so supports the shoe assembly that the heel portion of the shoe assembly faces the heel wiping means and is located forwardly of the heel wiping means when the heel wiping means is in its retracted position whereby the heel wiping stroke causes the heel wiping means to wipe the heel portion of the upper margin against the insole; wherein the support means comprises a last pin insertable into a thimble hole in the last and a toe rest located forwardly of the last pin adapted to support the vamp of the shoe assembly; said last pin having a smaller outer diameter than the inner diameter of the thimble hole and being located rearwardly of said lasting strap; and wherein said resilient means bears against said toe rest to yieldably urge the toe rest upwardly.

UNITED STATES PATENT AND TRADEMARK OFFICE CERTIFICATE OF CORRECTION PATENT NO. 3,928,880 DATED 1 December 30, I975 |NV ENTOR(5) Sinvr'He Runr'ons It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column 7: Line 27, change "descIosed" to-d1'sc1osed--. Column 8: Line 40, change "rest" to seat: p0rt1'on--.

Signed and Sealed this A ttest:

RUTH C. MASON C. MARSHALL DANN Arresting Officer Commissioner of Patents and Trademarks

Claims

1. A lasting machine, operable on a selected portion of a shoe assembly formed of a last having an upper mounted thereon and an insole located on its bottom by wiping the corresponding portion of the margin of the upper against the corresponding portion of the insole, comprising: support means for supporting the shoe assembly bottom-up with said maRgin portion extending upwardly of said insole portion; a lasting strap, located outwardly of said upper portion, having a relatively rigid top segment and a relatively flexible remainder extending downwardly of said top segment, said top segment and said remainder being joined by a juncture; a nozzle located upwardly of the shoe assembly and mounted for movement in a cement applying stroke along the corner between said margin portion and the periphery of said insole portion; resilient means so bearing against at least a part of the support means as to yieldably urge said shoe assembly portion upwardly; means for causing the lasting strap to so engage said upper portion as to cause said lasting strap remainder to press said portion of the upper against the last with said top segment extending upwardly of said insole portion and with said juncture located below the upwardly facing bottom of said insole portion; means for so folding said top segment that it extends part way towards said insole portion; means for thereafter effecting said cement applying stroke and for causing the nozzle to apply cement into said corner during the cement applying stroke; and means for thereafter further folding said top segment towards the insole so as to cause said top segment to wipe said margin portion against said insole portion in a wiping operation, said resilient means enabling the part of the last that is part of said shoe assembly portion to be depressed during said wiping operation to bring the juncture to the level of the upwardly facing bottom of said insole portion.