US3918115A

US3918115A - Wiping method and lasting machine-shoe assembly combination used therewith

Info

Publication number: US3918115A
Application number: US539902A
Authority: US
Inventors: Victor E Santilli
Original assignee: International Shoe Machine Corp
Current assignee: International Shoe Machine Corp
Priority date: 1975-01-09
Filing date: 1975-01-09
Publication date: 1975-11-11
Anticipated expiration: 1992-11-11
Also published as: CA1036760A

Abstract

The wiping of the heel portion of an upper margin against the corresponding portion of an insole by supporting bottom-up on a support a last having prongs extending upwardly from its bottom with the upper mounted on the last and the insole loosely located on its bottom, then raising the support so as to bring the insole into engagement with a hold down to thereby clamp the shoe assembly formed by the last, upper and insole between the support and the hold down at a level suitable for heel wiping and to thereby cause the hold down to press the insole against the prongs so as to restrain the insole against movement on the last bottom, and then wiping the heel portion of the upper margin against the insole.

Description

i United States Patent WIPING METHOD AND LASTING MACHINE-SHOE ASSEMBLY COMBINATION USED THEREWITII [75] Inventor: Victor E. Santilli, Framingham,

Mass.

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

[22] Filed: Jan. 9, 1975 [21] Appl. No.: 539,902

[52] US. Cl. 12/145; 12/14.2; 12/128 D [51] Int. Cl. A43D 21/00; A43D 3/00 [58] Field of Search 12/145, 14.2, 128 D [56] References Cited UNITED STATES PATENTS 2,656,552 10/1953 Butler et a1. 12/14.2 2,686,923 8/1954 MacDonald l2/l4.2 3,144,669 8/1964 Lamy 12/128 D I I z :r i

[ Nov. 11, 1975 3,187,358 6/1965 Roske 12/128 D Primary E.\'aminerPatrick D. Lawson Attorney, Agent, or FirmAlbert Gordon [57] ABSTRACT The wiping of the heel portion of an upper margin against the corresponding portion of an insole by supporting bottom-up on a support a last having prongs extending upwardly from its bottom with the upper mounted on the last and the insole loosely located on its bottom, then raising the support so as to bring the insole into engagement with a hold down to thereby clamp the shoe assembly formed by the last, upper and insole between the support and the hold down at a level suitable for heel wiping and to thereby cause the hold down to press the insole against the prongs so as to restrain the insole against movement on the last bottom, and then wiping the heel portion of the upper margin against the insole.

4 Claims, 11 Drawing Figures U.S. Patent Nov. 11 1975 Sheet10f5 3,918,115

US. Patent Nov.l1, 1975 Sheet20f5 3,918,115

US. Patent N0'v.11, 1975 Sheet3of5 3,918,115

FIG 6 US. Patent Nov. 11, 1975 Sheet 4 of5 3,918,115

US. Patent Nov. 11', 1975 Sheet 5 of5 3,918,115

FIG 74 WIPING METHOD AND LASTING MACHINE-SHOE ASSEMBLY COMBINATION USED THEREWITH BACKGROUND OF THE INVENTION In lasting operations by machines such as that disclosed in U.S.. Pat. Nos. 3,320,626 and 3,631,554, it is the practice to provide a shoe assembly formed ofa last having an upper mounted thereon and an insole accurately and immovably located on the last bottom, usually by tacks. The shoe assembly is mounted bottom-up on a support that is movable heightwise in a particular direction and a hold down of the machine is located above the shoe assembly. The machine incorporates wiping means that are mounted for inward planar movement in a wiping stroke with respect to the shoe assembly in a particular plane that is substantially at right angles to said particular direction from a retracted position to an advanced position, the bottom surface of the wiping means lying in a wiping plane that is substantially parallel to said particular plane.

In the operation of these machines, the wiping means wipes a selected portion (disclosed as the heel portion) of the margin of the upper against the corresponding portion of the insole. Initially the support and the hold down are so retained that the hold down bottom and the insole are spaced from each other with said insole substantially lying in a plane that is parallel to and offset from the wiping plane. Then such relative heightwise movement is imparted in said particular direction between the hold down and the support as to cause the hold down to engage the insole to thereby clamp the shoe assembly between the support and the hold down and to bring said insole portion substantially into said wiping plane. After this, a wiping stroke is imparted to the wiping means to thereby cause the wiping means to wipe said margin portion against said insole portion.

In order to avoid the expense of tacking the insoles to the last bottoms and then removing the tacks and to avoid the damage to the last bottoms caused by the tacks, there has been provided lasts having prongs upstanding from their bottoms onto which the insoles are impaled by pressure applying mechanisms. Examples of such an arrangement are illustrated in U.S. Pat. Nos. 3,744,074, 3,772,721 and 3,833,958.

SUMMARY OF THE INVENTION In accordance with this invention, a last having at least one prong upstanding from its bottom may be utilized in machines of the type shown in U.S. Pat. Nos. 3,320,626 and 3,631,554 to thus avoid tacking the insole to the last bottom and then removing the tacks without using a separate pressure applying mechanism to impale the insole on the last bottom. This is accomplished byso supporting the shoe assembly on the support that the prong is in registry with the hold down along said particular direction. Therefore, the relative heightwise movement between the hold down and the support that enables the shoe assembly to be clamped between the hold down and the support also causes the hold down to engage the insole and press the insole against the prong to thereby restrain the insole against movement on the last bottom.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. I is an isometric view of a last having prongs projecting from'its bottom;

FIG. 2 is a section taken along the line 2-2 of FIG.

FIG. 3 is a view taken along the line 33 .of FIG. 2;

FIG. 4 is a view of the last supported on a support, the last having anupper mounted thereon;

FIG. 4A is a view taken along the line 4A4A of FIG. 4; 7

FIG. 5 is a view similar to FIG. 4, but showing an insole on the last bottom and a toe hold down bearing against the toe portion of the insole;

FIG. 5A is a view taken along the line 5A-5A of FIG. 5;

FIG. 6 is a partially sectional elevation of an applicator-hold down unit;

FIG. 7 is a view of a shoe assembly in the machine 3 showing the hold down pressing the insole against the prongs;

FIG. 7A is a view taken along the line 7A7A of FIG. 7; and

FIG. 7B is a section taken along the line 78-78 of FIG. 7.

DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 1 shows a last 10 having a plug 12 embedded in the heel seat portion of its bottom 14 along its longitudinal center line. The bottom of the plug 12 is mounted substantially coextensive with the bottom of the surrounding area of the last bottom 14. Referring to FIGS. 2 and 3, a pair of spaced prongs 16 extend away from bottom of the plug 12 and the last bottom 14. The prongs 16 are substantially rectangular in cross-section and extend along parallel longitudinal axes that are substantially parallel to the longitudinal center line of the last 10. The last 10 serves as part of work that is acted on by a heel lasting machine of the general type shown in U.S. Pat. No. 3,320,626 which is modified as set forth below. Reference ismade to this patent and to other patents set forth below for a disclosure of the mechanisms for operating the machine parts.

The machine includes a work support which has been modified to take the form shown in U.S. Pat. No. 3,484,880. Referring to FIG. 4, a plate 20 and a last pin 22 are mounted to the top of a column 18 with the last pin 22 extending upwardly of the plate 20. A toe rest 24 is located forwardly of the column 18. An upper 26 is so mounted on the last 10 that the margin of the upper extends away from the last bottom 14. The lastupper assembly is placed bottom-up in the plate 20 with the last pin 22 entering the conventional last pin hole in the last. The toe portion of the last-upper assembly is supported on the toe rest 24. The plate 20 and the toe rest 24 thus serve as the work support.

Referring to FIGS. 4 and 4A, the forepart portions of the upper margin are now inserted between the jaws of pincers 28 and the pincers jaws are caused to close and grip the forepart portions of the upper margin. This is followed, by means of mechanism shown in U.S. Pat. No. 3,484,880, by a concomitant forward and upward movement of the pincers 28 to cause the upper 26 to be stretched .tightly about the last 10 with the quarter of the upper extending tightly about the heel of the last and the upper margin extending upwardly of the last bottom. The upper margin thus forms a fence extending upwardly of the periphery of the heel portion of the last 10.

Referring to FIGS. 5 and 5A, the operator now places an insole 30 on the last bottom 14, the fence formed by the quarter of the upper extending upwardly of the last bottom acting as a guide in placing the insole evenly on the last bottom. At this time the heel portion of the insole 30 is bowed about the prongs l6 asindicated in FIG. 5. After this, by mechanism shown in U.S. Pat. No. 3,484,880. a toe hold down 32 is brought to bear against the toe portion of the insole 30 to thereby hold the shoe assembly comprised of the last 10, the upper 26 and the insole 30 between the toe hold down 32 and the toe rest 24 and thus enable the operator to stop holding the shoe assembly. The bearing of the toe hold down 32 against the insole 30 inhibits the shifting of the insole on the last bottom 14.

The machine of U.S. Pat. No. 3,320,626 has been modified so as to substitute the heel down, heel hold down, mechanism and heel wiping mechanism shown in U.S. Pat. No. 3,609,785 for the heel hold-down heel clamping mechanism and heel wiping mechanism shown in U.S. Pat. No. 3,320,626.

In addition, the instant machine incorporates a cement applying mechanism of the type shown in U.S. Pat. No. 3,609,785.

Referring to FIG. 6, which illustrates the heel holddown and the cement applying mechanism, the heel hold down 36 is secured to the bottom of a spindle 34. The cement applying mechanism includes a hub 38 that is rotatably mounted to the spindle 34 and that has a radially extending nozzle 40 in its bottom. The mechanism shown in FIG. 6 forms an applicator-hold down unit 42.

The heel clamping mechanism comprises a U-shaped heel clamping pad 44 and the heel wiping mechanism comprises heel wipers 46 which are mounted for forward-rearward planar movement and for inwardoutward planar movement about a vertex 48 in a particular plane.

Although the plane in which the wipers 46 lie and in which they move is inclined from the vertical, for ease of explanation they will be considered to be horizontal. The lonitudinal axis of the column 18 is at right angles to the plane in which the wipers 46 lie and in which they move. For ease of explanation, this axis will be considered to be vertical.

In the manner shown in US. Pat. No. 3,484,880, the applicator-hold down unit 42 is moved from an initial rearward position to a forward position such that the hold down 36 is positioned directly above the heel portion of the insole 30 in vertical registry with the prongs 16 and the bottom of the hold down 36 is slightly below the wiping plane formed by the bottom surfaces of the heel wipers 46. This is followed by the vertical raising of the work support, comprised of the plate and the toe rest 24, and of the toe hold-down 32 under the yieldable force of an air operated motor to thereby raise the shoe assembly until the insole heel seat portion is brought into engagement with the bottom of the heel down 36. This engagement causes the hold down to press the insole 30 against the prongs 16 and the last bottom 14, as indicated in FIG. 7B, so as to cause the prongs to partially penetrate the insole. As a result, the shoe assembly is clamped between the plate 20 and the heel down 36 and the heel seat portion of the insole is restrained against movement by the prongs 16. The parallel longitudinal axes of the prongs 16 extend in forward-rearward directions at this time to thereby in Now, with the mechanism shown in U.S. Pat. No.

3,463,779, the heel clamping pad 44 is caused to firmly engage the shoe assembly, and clamp the heel portion 1 of the upper 26 against the last 10, as shown in FIGS. 7 and 7A, with the heel portion of the upper margin extending upwardly of the heel seat portion of the insole 30. This is followed by a swinging of the hub38, while cement is extruded through the nozzle 40, to thereby deposit cement on the margin of the heel portion of the upper 26 and/or the periphery of the heel portion of the insole 30 (see FIG. 7A). After this, the heel wipers 46 are moved forwardly from their FIGS. 7 and 7A position and inwardly about the vertex 48 in a heel wiping stroke so as to wipe the heel portion of the upper margin against the heel portion of the insole periphery and i 1 bond the upper margin to the insole by means of the ce--v ment. During the heel wiping operation, the applicatorhold down unit 42 is raised out of the way of the heel wipers 46, and, at the end of the heel wiping stroke, the air operated motor associated with the work support moves the column 1 8 upwardly under heavier pressure than had previously been applied to thereby apply bed-,

ding pressure between the wiped upper margin and the bottoms of the heel wipers 46. After the bedding pressure has been applied for a predetermined length of time, the machine cycle is completed, the machine parts are returned to their idle positions, and the shoe assembly is released.

The insole 30 is securely anchored to the rest of=the shoe assembly at the completion of the heel lasting operation by means of the cementatious connection between the wiped heel portion of the upper margin and the insole.

There follows a recapitulation of the machine con-,

struction and operation as they relate to this invention.

The machine includes a support formed of the plate 20 and the toe rest 24 that is mounted for heightwise movement in a particular direction in the manner shown in U.S., Pat. No. 3,320,626. The shoe assembly, formed of the last 10 having the upper 26 mounted thereon and the insole 30 located on its bottom witha particular portion (the heel portion) of the upper mar.-

gin extending upwardly of the corresponding portion of the insole, is supported bottom-up on the support. Wiping means constituted by the heel wipers 46 are I mounted for inward planar movement in a wiping stroke with respect to the shoe assembly, in the manner shown in U.S. Pat. No. 3,609,785, in a particular plane I that is substantially at right angles to said particular direction from a retracted position to an advanced position with the bottom surface of the, wiping means lying in a wiping plane, as shown in FIG. 7, that is ,substantially parallel to said particular plane. The hold down 36 is located above the shoe assembly. At lease one prong 16 is mounted to the last 10 so as to extend upwardly of the last bottom 14 beneath the

insole

30,38

shown in FIG. 5, the prong being in registry with the hold down along said particular direction.

In a machine cycle, the retaining means disclosed in US. Pat. No. 3,320,626 initially so retain the support and the hold down that the bottom of the hold down and the insole are spaced from each other with said insole portion substantially lying in a plane that is parallel to and offset in said particular direction from said wiping plane. In the illustrative embodiment of the invention, the retaining means retains the hold down bottom substantially in said wiping plane. Thereafter, the moving means disclosed in US. Pat. No. 3,320,626 imparts such relative heightwise movement between the support and the hold down in said particular direction (a rising movement of the support in the illustrative embodiment of the invention) as to cause the hold down 36 to engage the insole 30 and press the insole against the prong 16 to thereby restrain the insole against movement on the last bottom 14 and clamp the shoe assembly between the support and the hold down and to bring said insole portion (disclosed as the heel portion) substantially into said wiping plane. Thereafter, by the mechanism shown in US. Pat. No. 3,609,785, a wiping stroke is imparted to the wiping means to thereby wipe said margin portion against said insole portion.

Although the illustrative embodiment of the invention discloses a heel wiping operation, the invention has utility in wiping other portions of the shoe assembly as, for example, in wiping the toe portion of the upper margin againstv the corresponding portion of the insole.

I claim:

1. A lasting machine-shoe assembly combination for use in wiping a selected portion of the margin of an upper against the corresponding portion of an insole comprising: a support mounted for heightwise movement in a particular direction; a shoe assembly, formed ofa last having the upper mounted thereon and the insole located on its bottom with said upper margin portion extending upwardly of the periphery of said insole portion, supported bottom up on said support; wiping means mounted for inward planar movement in a wiping stroke with respect to the shoe assembly in a particular plane that is substantially at right angles to said particular direction from a retracted position to an advanced position, the bottom surface of the wiping means lying in a wiping plane that is substantially parallel to said particular plane; a hold down located above the shoe assembly; at least one prong mounted to said last and extending upwardly of the last bottom beneath the insole, said prong being in registry with said hold down along said particular direction; retaining means initially so retaining the support and the hold down that the hold-down bottom and the insole are spaced from each other with said insole portion substantially lying in a plane that is parallel to and offset in said particular direction from said wiping plane; moving means for thereafter imparting such relative heightwise movement between the support and the hold down in said particular direction as to cause the hold down to engage the insole and press the insole against the prong to thereby restrain the insole against movement on the last bottom and clamp the shoe assembly between the support and the hold down and to bring said insole portion substantially into said wiping plane; and means for thereafter imparting said wiping stroke to said wiping means to thereby wipe said margin portion against said insole portion.

2. The combination of claim 1 wherein said retaining means retains the hold down bottom substantially in said wiping plane; and wherein said moving means so raises the support as to bring the insole into engagement with the hold down bottom.

3. A method of wiping a selected portion of the margin of an upper against the corresponding portion of an insole comprising: providing a support mounted for heightwise movement in a particular direction; supporting bottom-up on the support a shoe assembly formed of a last having the upper mounted thereon and the insole located on its bottom with said upper margin portion extending upwardly of the periphery of said insole portion; providing wiping means mounted for inward planar movement in a wiping stroke with respect to the shoe assembly in a particular plane that is substantially at right angles to said particular direction from a retracted position to an advanced position. the bottom surface of the wiping means lying in a wiping plane that is substantially parallel to said particular plane; providing a hold down that is located above the shoe assembly; providing at least one prong that is mounted to said last and extends upwardly of the last bottom beneath the insole, said prong being in registry with said hold down along said particular direction; initially so retaining the support and the hold down that the hold down bottom and the insole are spaced from each other with said insole portion substantially lying in a plane that is parallel to and offset in said particular direction from said wiping plane; thereafter imparting such relative heightwise movement between the support and the hold down in said particular direction as to cause the hold down to engage the insole and press the insole against the prong to thereby restrain the insole against movement on the last bottom and clamp the shoe assembly between the support and the hold down and to bring said insole portion substantially into said wiping plane; and thereafter imparting said wiping stroke to said wiping means to thereby wipe said margin portion against said insole portion.

4. The method of claim 3 wherein the hold down bottom is initially retained substantially in said wiping plane; and wherein said relative heightwise movement so raises the support as to bring the insole into engagement with the hold down bottom.

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3.918.115 Dated Nov. 11, 1975 Inventor(s) Vivi-n1" E- Santilli It is certified that error appears in the above-identified 'patent and that said Letters Patent are hereby corrected as shown below:

Column 3, lines 17-19 should read: modified so as to substitute the heel hold down, heel clamping mechanism and heel wiping mechanism shown in U.S. Patent No.

3,609,785 for the heel hold down, heel This certificate supersedes Certificate of Correction issued March 2, 1976.

Signed and Scaled this Twenty-fourth Day of January 1978 [SEAL] A nest:

RUTH C. MASON LUTRELLE F. PARKER Arresting Officer Acting Commissioner of Patents and Trademarks UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION PATENT NO. 1 3918115 DATED November 11, 1975 INVENTOR) I V'ICtOY It is certified that error appears in the above-identified patent and that said Letters Patent 3 are hereby corrected as shown below:

Co1umn 3: 1ine 18, before the first occurrence of "mechanism" insert =--hee1 c1amping--; 1ine 19, change between ho1d" and "down" to Co1umn 4: 1ine 6, change "inso1ve" to --inso1e--; 1ine 12, change "3463779" to -3436779-. 0

Signed and Scaled this second Day of March 1976 G [SEAL] Attest:

RUTH c. MASON c. MARSHALL DANN Arresting Officer Commissioner ofParents and Trademarks

Claims

1. A lasting machine-shoe assembly combination for use in wiping a selected portion of the margin of an upper against the corresponding portion of an insole comprising: a support mounted for heightwise movement in a particular direction; a shoe assembly, formed of a last having the upper mounted thereon and the insole located on its bottom with said upper margin portion extending upwardly of the periphery of said insole portion, supported bottom-up on said support; wiping means mounted for inward planar movement in a wiping stroke with respect to the shoe assembly in a particular plane that is substantially at right angles to said particular direction from a retracted position to an advanced position, the bottom surface of the wiping means lying in a wiping plane that is substantially parallel to said particular plane; a hold down located above the shoe assembly; at least one prong mounted to said last and extending upwardly of the last bottom beneath the insole, said prong being in registry with said hold-down along said particular direction; retaining means initially so retaining the support and the hold down that the hold-down bottom and the insole are spaced from each other with said insole portion substantially lying in a plane that is parallel to and offset in said particular direction from said wiping plane; moving means for thereafter imparting such relative heightwise movement between the support and the hold down in said particular direction as to cause the hold down to engage the insole and press the insole against the prong to thereby restrain the insole against movement on the last bottom and clamp the shoe assembly between the support and the hold down and to bring said insole portion substantially into said wiping plane; and means for thereafter imparting said wiping stroke to said wiping means to thereby wipe said margin portion against said insole portion.

3. A method of wiping a selected portion of the margin of an upper against the corresponding portion of an insole comprising: providing a support mounted for heightwise movement in a particular direction; supporting bottom-up on the support a shoe assembly formed of a last having the upper mounted thereon and the insole located on its bottom with said upper margin portion extending upwardly of the periphery of said insole portion; providing wiping means mounted for inward planar movement in a wiping stroke with respect to the shoe assembly in a particular plane that is substantially at right angles to said particular direction from a retracted position to an advanced position, the bottom surface of the wiping means lying in a wiping plane that is substantially parallel to said particular plane; providing a hold down that is located above the shoe assembly; providing at least one prong that is mounted to said last and extends upwardly of the last bottom beneath the insole, said prong being in registry with said hold down along said particular direction; initially so retaining the support and the hold down that the hold down bottom and the insole are spaced from each other with said insole portion substantially lying in a plane that is parallel to and offset in said particular direction from said wiping plane; thereafter imparting such relative heightwise movement between the support and the hold down in said particular direction as to cause the hold down to engage the insole and press the insole against the prong to thereby restrain the insole against movement on the last bottom and clamp the shoe assembly between the support and the hold down and to bring said insole portion substantially into said wiping plane; and thereafter imparting said wiping stroke to said wiping means to thereby wipe said margin portion against said insole portion.