CA1036760A - Wiping method and lasting machine-shoe assembly combination used therewith - Google Patents
Wiping method and lasting machine-shoe assembly combination used therewithInfo
- Publication number
- CA1036760A CA1036760A CA238,751A CA238751A CA1036760A CA 1036760 A CA1036760 A CA 1036760A CA 238751 A CA238751 A CA 238751A CA 1036760 A CA1036760 A CA 1036760A
- Authority
- CA
- Canada
- Prior art keywords
- insole
- wiping
- hold down
- plane
- last
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
- A43D21/00—Lasting machines
- A43D21/16—Lasting machines with lasting pincers and toe- or heel-embracing wipers
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
- A43D23/00—Single parts for pulling-over or lasting machines
- A43D23/02—Wipers; Sole-pressers; Last-supports; Pincers
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
WIPING METHOD AND LASTING MACHINE-SHOE ASSEMBLY
COMBINATION USED THEREWITH
ABSTRACT OF THE DISCLOSURE
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.
COMBINATION USED THEREWITH
ABSTRACT OF THE DISCLOSURE
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
~036q~V
The present invention relates to an apparatus and method for wiping a selected portion of the margin of an upper against the corresponding portion of an insole.
In lasting operations by machines such as that dis-closed in U.S. Pabents Nos. 3,320,626 and 3,631,554, it is the practice to provide a shoe assembly formed of a last having an upper mounted ~hereon 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 I 10 heightwise in a particular direction and a hold down of the I machine is located above the shoe assembly. The machine in;cor-porates wiping means that are mounted for inward planar move-i ment 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 portion substantially lying in a plane that is parallel to and offset from the wiping plane. Then such relative heightwise movement is imparted in said partic-ular 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 ~ .
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~ 0367~C~
said insole po~tion 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 o~ such an arragement are illustrated in Patents Nos.
3744074, 3772721 and 3833958.
According to the present invention there is provided ¦ an apparatus having a support mounted for heightwise movement in a particular direction~ A shoe assembly, formed of a last having an upper mounted thereon and the insole located on its bottom with the upper margin portion extending upwardly of the periphery of the insole portion can be supported bottom-up on the support.
Wiping means is 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 the particular direction from a retracted position to an advanced position. The bottom surface of the wiping means lies in a wiping plane that is substantially parallel to the particular plane, and a hold down is located above the shoe assembly. At least one prong is mounted to the last and extends upwardly of the last bottom beneath the insole, the prong being in register with the hold down along the particular direction. Retaining means initially retain the support and the hold down so that the hold down bottom and the insole are spaced from each other with the insole portion su~-A ,~
LW/ ' ~ 2 .
1036'7~i0 stantially lying in a plane that is parallel to and offset to, theparticular direction from the wiping plane~ Moving means are provided for thereafter imparting the relative heightwise move-ment between the support and the hold down in the particular direction so as to cause the hold down to engage the insole and press the insole against the prong to there~y restrain the insole against movement on the last bottom and clamp the shoe assembly between the support and the hold down and to bring the insole por~ion substantially into the wiping~plane. Means are also provided for thereafter imparting the wiping stroke to the wiping means to thereby wipe the margin portion against the insole portion.
According to one embodiment of the invention the retain-ing means retains the hold`down bottom substantially in the wiping ¦ plane, and the moving means so raises the support as to bring the ! insole into engagement with the hold down bottom.~`
The present invention also relates to a method of wiping a selected portion of the margin of an upper against the corresponding portion of an insole and includes the steps of providing a support mounted for a heightwise movement in a partic-ular direction and 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 the upper margin p0rtion extend-ing upwardly of the periphery of the insole portion. The method further includes the steps of providing wipin~ 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 the particular direction from a retracted poctition to an advanced, the bottom surface of the wiping means lying in h ~-2a-103676~
a wiping plane that is substantially parallel to the partic-ular plane. A hold down is provided that is located above the shoe assembly, and at least one prong is provided that is mounted to the last and extènds upwardly of the last bottom beneath the insole, the prong being in registry with the hold-down along the particular direction. In the method, the support and the hold down are initially so retained that the hold down bottom and the insole are spaced ~rom each other with the insole portions substantially lying in a plane that is parallel to an offset in the particular direction from the wiping plane. Thereafter such relative heightwise movemen~ is imparted between the support and the hold `down in the pa~ticular direction as to cause the hold down to engage the insole and"pxe~ t~e insole against the prong to thère~y re-strain the ~ole ayain~t movement Ofthe last bottom and clamp the shoe assembly between the support and the hold down and to bring the insole portion substantially into the wiping plane. The wiping stroke is thereafter imparted to the wiping means to thereby wipe the margin portion against the insole portion.
It may be seen that in this invention, a last having at least one prong upstanding from its bottom may bè utilized in machines of the type shown in U.S.Patents Nos. 3320626 and 3631554 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 las~t bottom. This i9 accom-plished by so supporting the shoe assembly on the support that the prong is in registry with the hold down along said particular diroction. 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 A ,, rw/~ 2b -lV36761) 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 DBSCRIPTION OF THB DR~WINGS
Figure 1 is an isometric view of a last having prongs projecting from its bottom;
Figure 2 is a section taken along the line 2-2 of Figure l;
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,1 1036760 Figure 3 is a view taken along the line 3-3 of Figure 2;
Figure 4 is a view of the last supported on a support, the last having 'an upper ~lounted thereon;
'¦ Figure 4A is a view taken along the liné 4A-4A of Figure 4;
~ Figure 5 is a v~ew similar to Figure 4, but showing an insole on the last'¦bottom and a toe hold down bearing against~the toe portion of the insole;
Figure 5A is a view taken along the line 5A-5A of Figure 5;
il Figure 6 is a partially sectional elevation of an applicat~-hold down ~`unit;
, Figure 7 is a view of a shoe assembly in the machine showing the hold ~down pressing the insole against the prongs;
n Figure 7A is a view taken along the line 7A-7A of Figure 7; and I `
'I Figure 7B is a section tàken ~along the linè 7B-7B of Figure 7.
DESCRIPTION OF THE PREFERRED EMBODIMEN~ ¦
Figure 1 shows a last 10 having a plug 12 embedded in the heel seat portio " 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 Figures 2 and 3, a pair of spaced !' prongs 16 extend aw~y from bottom of the plug 12 and the last bottom 14. The .
prongs 16 are substantially rectangular in cross-section and extend along parallel longitudinll 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 I -on by a heel lasting machine of the general b Pe shown in Patent No. 3,320,626 !~n which is modified as set forth below. Reference is made 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 ,I form shown in Patent No.3,484,880. Referring to Figure 4, a plate 20 and a iilast pin 22 are mounted to the top of a column lR with the last pin 22 extending ¦. upwardly of the plate 20. A toe rest 24 is located forwardly ol the column 18.¦
~ 3-l' ''' l ii ' '`, 1036q~0 An upper 26 is so mounted on the last 10 that the margin of the upper extends away from the last bottom 14. The last-upper assembly is placed bottom-up in the plate 20 with the last pin 22 entering the conventionial 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 Figures 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 .nargin. This is followed,by means of mechanism shown in Patent 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 extend;ng upwardly c- the làst bottom. The upper margin thus forms a fence exten~ing upwardly of the peripheryof the heel portion of the last 10.
Referring to Figures 5 and 5A, the operator now places an insole 30 on the last bottom 14, the fence formed by .he quarter of the upper extending upwardly of the last bottom acting as a suide in placing the insole evenly on the last bottom. At this time the heel portion of the insole 30 is bowed about the prongs 16 as indicated in Figure 5. After this, by mechanism shown in Patent 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, theupper 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 Patent 3,320,626 has been modified so as to substitue the heel hold down, heel clamping mechanism and heel wiping mechanism shown in Patent No 3,609,785 for the heel hold-down,heel clamping mechanism and heël wiping mechanism shown in Patent 3,32~,626.
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0367~ 1 " In addition, the instant machine incorporates a cement applying mechanism ; of the type shown in Patent No. 3,609,785.
il Referring to Figure 6, which illustrates the heel hold-down and the cement applying mechanism,the heel hold down 36 is secured to the bottom of a spindle I34. The cement applying mechanism includes a h-~b 38 that is rotatably mounted ilto the spindle 34 and that has a radially extending nozzle 40 in its bottom.
i~The mechan;sm show~ in Figure 6 forms an applicator-hold down unit 42.
~I The heel clamping mechanlsm comprises a U-shaped heel clamping pad 44 and ~the heel wiplng mechanism comprises heel wipers 46 which are mounted for for~ard-rearward planar mo~ement and for inward-outward planar movement about Ij a vertex 48 in a particul àr plane.
`,~ Although the plane in which the wipers 46 lie and ;n which they move is ' inclined from the vertical, for ease of explanation they will be considered to !
¦~ be hori~Ontal~ The lonitudinal ax;s of the column 18 is at right angles to 1' the plane in which the wipers 46 lie and in which they move. For ease of '`¦ explanation, this ax;s will b2 considered to be vertical.
In the manner shown in Patent No.3,484,880, the applicator-hold down unit j .
,~ 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, com-prised of the plate 20 and the toe rest 24, and of the toe hold-down 3~2 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 bottoml of the heel hold 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 Figure 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 5_ !
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..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-rear-ward directions at this time to thereby inhibit sidewise twisting of the heel ~,end of the insole with respect to the last which would be undersirable in the `;below described heel wiping operation. The location of the heel hold down ~,36 is such that, when the shoe assembly has completed its rise, the upwardly `~facing bottom of the hèel seat portion of the ~ 30 lies in a plane ,parallel to and slightly lower than the wiping plane formed by the bottoms of the heel wipers 46, which is desirable for the below described heel wiping ..
;operation.
~' Now, with the mechanism shown in Patent ~o. 3,4 ~ 779, the heel clamping ¦.
pad 44 is caused to firmly engage the shoe assembly and clamp the heel portion ~`of the upper 26 against the last 10, as shown in Figures 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 hub 38, while cement ids extruded through the noz~le 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 I
~he insole 30 (see Figure 7A). After this, the heel wipers 40 are moved forwardly from their Figures 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 thè insole periphery and bond the upper margin 'to the insole by means of the cement. During the heel wiping operation, the ,applicator-hold 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 f with the work support moves the co~umn 18 upwardly under heavier pressure than ~had previously been applied to thereby apply bedding 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 I
'assembly is released. f ! -! , , . I
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lV3~;7~i0 .
I The insole 30 is securely anchored to the rest of the shoe assembly at l! the completion of the heel lasting operation by means of the cementatious connection between the wiped hee1 portion of the upper margin and the insole.
,I There follows a recapitulation of the machine construction and operation j ilas they relate to this invention. I
,I The machine includes a support formed of the plate 20 and the toe rest 24 j ~; that is mounted for heightwise movement in a particular direction in the ` manner shown in Patent No. 3,320,626. The shoe assembly, formed of the last lO having the upper 26 mounted theneon and the insole 30 located on ~ts bottom ¦~1! with a particular portion (the heel portion) of the upper margin extending P upwardly of the corresponding portion of the insole, is supported bottom-up on !
I~ the support. Wiping means constituted by thè heel wipers 46 are ~lounted foru inward planar movement in a wiping stroke with respect to the shoe assembly, in '~ the manner shown in Patent No. 3,609,7~5, in a particular plane that is sub-' stantially 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 Figure 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, as shown in Figure 5, the prong being in registry with tne hold down along said particular direction.
~, In a machine cxcle, the retaining means disclosed in Patent No. 3,320,626 li initially so retain the support and the hold down that the bottom of the holdi' 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 particulaF~¦ direction from said wiping plane. In the illustrative embodiment of the inven-~i tion, the retaining means retains the hold do~m bottom substantially in said wiplng plane. Thereafter, the moving means disclosed in Patent No. 3,320,626 imparts such relative he1ghtwise movement between the support and the hold downl `
¦ -7~
~, ` 1036760 ~ in said particular direction ( a rising movement of the support in the illustr-.~ ative embodilnent of the invention) as to cause the hold down 36 to èngage the insole 30 and press the insole dgainst thè prong 16 to thereby restrain the insole against mo\tement on the last bottol~ 14 and claï:~p the shoe assembly be-~ ~, tween 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 Patent No. 3,609,785, a wiping stroke is imparted to the ~,~ wiping means to thereby wipe said margin portion against said insole portion.
P Although the illustrative embodiment of the invention discloses a heel ~ wiping operation, the in\~ention has utility ;n wiping other portions of the ~ shoe assembly as, for example, in wiping the toe portion of the upper margin .~ against the corresponding portion of the insole. I
'` ` ' i'~ , . ' i ~ I
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The present invention relates to an apparatus and method for wiping a selected portion of the margin of an upper against the corresponding portion of an insole.
In lasting operations by machines such as that dis-closed in U.S. Pabents Nos. 3,320,626 and 3,631,554, it is the practice to provide a shoe assembly formed of a last having an upper mounted ~hereon 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 I 10 heightwise in a particular direction and a hold down of the I machine is located above the shoe assembly. The machine in;cor-porates wiping means that are mounted for inward planar move-i ment 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 portion substantially lying in a plane that is parallel to and offset from the wiping plane. Then such relative heightwise movement is imparted in said partic-ular 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 ~ .
,. ~ .
~ 0367~C~
said insole po~tion 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 o~ such an arragement are illustrated in Patents Nos.
3744074, 3772721 and 3833958.
According to the present invention there is provided ¦ an apparatus having a support mounted for heightwise movement in a particular direction~ A shoe assembly, formed of a last having an upper mounted thereon and the insole located on its bottom with the upper margin portion extending upwardly of the periphery of the insole portion can be supported bottom-up on the support.
Wiping means is 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 the particular direction from a retracted position to an advanced position. The bottom surface of the wiping means lies in a wiping plane that is substantially parallel to the particular plane, and a hold down is located above the shoe assembly. At least one prong is mounted to the last and extends upwardly of the last bottom beneath the insole, the prong being in register with the hold down along the particular direction. Retaining means initially retain the support and the hold down so that the hold down bottom and the insole are spaced from each other with the insole portion su~-A ,~
LW/ ' ~ 2 .
1036'7~i0 stantially lying in a plane that is parallel to and offset to, theparticular direction from the wiping plane~ Moving means are provided for thereafter imparting the relative heightwise move-ment between the support and the hold down in the particular direction so as to cause the hold down to engage the insole and press the insole against the prong to there~y restrain the insole against movement on the last bottom and clamp the shoe assembly between the support and the hold down and to bring the insole por~ion substantially into the wiping~plane. Means are also provided for thereafter imparting the wiping stroke to the wiping means to thereby wipe the margin portion against the insole portion.
According to one embodiment of the invention the retain-ing means retains the hold`down bottom substantially in the wiping ¦ plane, and the moving means so raises the support as to bring the ! insole into engagement with the hold down bottom.~`
The present invention also relates to a method of wiping a selected portion of the margin of an upper against the corresponding portion of an insole and includes the steps of providing a support mounted for a heightwise movement in a partic-ular direction and 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 the upper margin p0rtion extend-ing upwardly of the periphery of the insole portion. The method further includes the steps of providing wipin~ 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 the particular direction from a retracted poctition to an advanced, the bottom surface of the wiping means lying in h ~-2a-103676~
a wiping plane that is substantially parallel to the partic-ular plane. A hold down is provided that is located above the shoe assembly, and at least one prong is provided that is mounted to the last and extènds upwardly of the last bottom beneath the insole, the prong being in registry with the hold-down along the particular direction. In the method, the support and the hold down are initially so retained that the hold down bottom and the insole are spaced ~rom each other with the insole portions substantially lying in a plane that is parallel to an offset in the particular direction from the wiping plane. Thereafter such relative heightwise movemen~ is imparted between the support and the hold `down in the pa~ticular direction as to cause the hold down to engage the insole and"pxe~ t~e insole against the prong to thère~y re-strain the ~ole ayain~t movement Ofthe last bottom and clamp the shoe assembly between the support and the hold down and to bring the insole portion substantially into the wiping plane. The wiping stroke is thereafter imparted to the wiping means to thereby wipe the margin portion against the insole portion.
It may be seen that in this invention, a last having at least one prong upstanding from its bottom may bè utilized in machines of the type shown in U.S.Patents Nos. 3320626 and 3631554 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 las~t bottom. This i9 accom-plished by so supporting the shoe assembly on the support that the prong is in registry with the hold down along said particular diroction. 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 A ,, rw/~ 2b -lV36761) 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 DBSCRIPTION OF THB DR~WINGS
Figure 1 is an isometric view of a last having prongs projecting from its bottom;
Figure 2 is a section taken along the line 2-2 of Figure l;
.~
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,1 1036760 Figure 3 is a view taken along the line 3-3 of Figure 2;
Figure 4 is a view of the last supported on a support, the last having 'an upper ~lounted thereon;
'¦ Figure 4A is a view taken along the liné 4A-4A of Figure 4;
~ Figure 5 is a v~ew similar to Figure 4, but showing an insole on the last'¦bottom and a toe hold down bearing against~the toe portion of the insole;
Figure 5A is a view taken along the line 5A-5A of Figure 5;
il Figure 6 is a partially sectional elevation of an applicat~-hold down ~`unit;
, Figure 7 is a view of a shoe assembly in the machine showing the hold ~down pressing the insole against the prongs;
n Figure 7A is a view taken along the line 7A-7A of Figure 7; and I `
'I Figure 7B is a section tàken ~along the linè 7B-7B of Figure 7.
DESCRIPTION OF THE PREFERRED EMBODIMEN~ ¦
Figure 1 shows a last 10 having a plug 12 embedded in the heel seat portio " 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 Figures 2 and 3, a pair of spaced !' prongs 16 extend aw~y from bottom of the plug 12 and the last bottom 14. The .
prongs 16 are substantially rectangular in cross-section and extend along parallel longitudinll 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 I -on by a heel lasting machine of the general b Pe shown in Patent No. 3,320,626 !~n which is modified as set forth below. Reference is made 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 ,I form shown in Patent No.3,484,880. Referring to Figure 4, a plate 20 and a iilast pin 22 are mounted to the top of a column lR with the last pin 22 extending ¦. upwardly of the plate 20. A toe rest 24 is located forwardly ol the column 18.¦
~ 3-l' ''' l ii ' '`, 1036q~0 An upper 26 is so mounted on the last 10 that the margin of the upper extends away from the last bottom 14. The last-upper assembly is placed bottom-up in the plate 20 with the last pin 22 entering the conventionial 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 Figures 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 .nargin. This is followed,by means of mechanism shown in Patent 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 extend;ng upwardly c- the làst bottom. The upper margin thus forms a fence exten~ing upwardly of the peripheryof the heel portion of the last 10.
Referring to Figures 5 and 5A, the operator now places an insole 30 on the last bottom 14, the fence formed by .he quarter of the upper extending upwardly of the last bottom acting as a suide in placing the insole evenly on the last bottom. At this time the heel portion of the insole 30 is bowed about the prongs 16 as indicated in Figure 5. After this, by mechanism shown in Patent 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, theupper 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 Patent 3,320,626 has been modified so as to substitue the heel hold down, heel clamping mechanism and heel wiping mechanism shown in Patent No 3,609,785 for the heel hold-down,heel clamping mechanism and heël wiping mechanism shown in Patent 3,32~,626.
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.~ ` I
0367~ 1 " In addition, the instant machine incorporates a cement applying mechanism ; of the type shown in Patent No. 3,609,785.
il Referring to Figure 6, which illustrates the heel hold-down and the cement applying mechanism,the heel hold down 36 is secured to the bottom of a spindle I34. The cement applying mechanism includes a h-~b 38 that is rotatably mounted ilto the spindle 34 and that has a radially extending nozzle 40 in its bottom.
i~The mechan;sm show~ in Figure 6 forms an applicator-hold down unit 42.
~I The heel clamping mechanlsm comprises a U-shaped heel clamping pad 44 and ~the heel wiplng mechanism comprises heel wipers 46 which are mounted for for~ard-rearward planar mo~ement and for inward-outward planar movement about Ij a vertex 48 in a particul àr plane.
`,~ Although the plane in which the wipers 46 lie and ;n which they move is ' inclined from the vertical, for ease of explanation they will be considered to !
¦~ be hori~Ontal~ The lonitudinal ax;s of the column 18 is at right angles to 1' the plane in which the wipers 46 lie and in which they move. For ease of '`¦ explanation, this ax;s will b2 considered to be vertical.
In the manner shown in Patent No.3,484,880, the applicator-hold down unit j .
,~ 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, com-prised of the plate 20 and the toe rest 24, and of the toe hold-down 3~2 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 bottoml of the heel hold 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 Figure 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 5_ !
. .'il . I
.~' . I , ,j 10367~
..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-rear-ward directions at this time to thereby inhibit sidewise twisting of the heel ~,end of the insole with respect to the last which would be undersirable in the `;below described heel wiping operation. The location of the heel hold down ~,36 is such that, when the shoe assembly has completed its rise, the upwardly `~facing bottom of the hèel seat portion of the ~ 30 lies in a plane ,parallel to and slightly lower than the wiping plane formed by the bottoms of the heel wipers 46, which is desirable for the below described heel wiping ..
;operation.
~' Now, with the mechanism shown in Patent ~o. 3,4 ~ 779, the heel clamping ¦.
pad 44 is caused to firmly engage the shoe assembly and clamp the heel portion ~`of the upper 26 against the last 10, as shown in Figures 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 hub 38, while cement ids extruded through the noz~le 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 I
~he insole 30 (see Figure 7A). After this, the heel wipers 40 are moved forwardly from their Figures 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 thè insole periphery and bond the upper margin 'to the insole by means of the cement. During the heel wiping operation, the ,applicator-hold 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 f with the work support moves the co~umn 18 upwardly under heavier pressure than ~had previously been applied to thereby apply bedding 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 I
'assembly is released. f ! -! , , . I
!i ~ I
lV3~;7~i0 .
I The insole 30 is securely anchored to the rest of the shoe assembly at l! the completion of the heel lasting operation by means of the cementatious connection between the wiped hee1 portion of the upper margin and the insole.
,I There follows a recapitulation of the machine construction and operation j ilas they relate to this invention. I
,I The machine includes a support formed of the plate 20 and the toe rest 24 j ~; that is mounted for heightwise movement in a particular direction in the ` manner shown in Patent No. 3,320,626. The shoe assembly, formed of the last lO having the upper 26 mounted theneon and the insole 30 located on ~ts bottom ¦~1! with a particular portion (the heel portion) of the upper margin extending P upwardly of the corresponding portion of the insole, is supported bottom-up on !
I~ the support. Wiping means constituted by thè heel wipers 46 are ~lounted foru inward planar movement in a wiping stroke with respect to the shoe assembly, in '~ the manner shown in Patent No. 3,609,7~5, in a particular plane that is sub-' stantially 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 Figure 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, as shown in Figure 5, the prong being in registry with tne hold down along said particular direction.
~, In a machine cxcle, the retaining means disclosed in Patent No. 3,320,626 li initially so retain the support and the hold down that the bottom of the holdi' 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 particulaF~¦ direction from said wiping plane. In the illustrative embodiment of the inven-~i tion, the retaining means retains the hold do~m bottom substantially in said wiplng plane. Thereafter, the moving means disclosed in Patent No. 3,320,626 imparts such relative he1ghtwise movement between the support and the hold downl `
¦ -7~
~, ` 1036760 ~ in said particular direction ( a rising movement of the support in the illustr-.~ ative embodilnent of the invention) as to cause the hold down 36 to èngage the insole 30 and press the insole dgainst thè prong 16 to thereby restrain the insole against mo\tement on the last bottol~ 14 and claï:~p the shoe assembly be-~ ~, tween 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 Patent No. 3,609,785, a wiping stroke is imparted to the ~,~ wiping means to thereby wipe said margin portion against said insole portion.
P Although the illustrative embodiment of the invention discloses a heel ~ wiping operation, the in\~ention has utility ;n wiping other portions of the ~ shoe assembly as, for example, in wiping the toe portion of the upper margin .~ against the corresponding portion of the insole. I
'` ` ' i'~ , . ' i ~ I
,, , ~ ~ l .
Claims (4)
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 advance 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 substantiallylying 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.
and the insole are spaced from each other with said insole portion substantiallylying 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 up-wardly 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 insoleagainst movement on the last bottom and clamp the shoe assembly between the supp-ort 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.
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 insoleagainst movement on the last bottom and clamp the shoe assembly between the supp-ort 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.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US539902A US3918115A (en) | 1975-01-09 | 1975-01-09 | Wiping method and lasting machine-shoe assembly combination used therewith |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1036760A true CA1036760A (en) | 1978-08-22 |
Family
ID=24153129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA238,751A Expired CA1036760A (en) | 1975-01-09 | 1975-10-31 | Wiping method and lasting machine-shoe assembly combination used therewith |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3918115A (en) |
| CA (1) | CA1036760A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0057516A3 (en) * | 1981-01-26 | 1985-08-14 | British United Shoe Machinery Limited | Machine for lasting heel seat portions of shoes |
| DE3104475C2 (en) * | 1981-02-09 | 1985-02-14 | Deutsche Vereinigte Schuhmaschinen Gmbh, 6000 Frankfurt | Method and device for pinching the heel of shoes with pinching scissors |
| GB8605766D0 (en) * | 1986-03-08 | 1986-04-16 | Busm Co Ltd | Shoe support |
| IT1258210B (en) * | 1991-04-19 | 1996-02-21 | Breme Tecnica Di Cominardi M & | RIGHT AND LEFT POSITIVE LASTS FOR THE SHAPING OF TRADITIONAL FOOTWEAR EQUIPPED WITH A GRIP FOR AUTOMATIC HANDLING OF THE LAST; WITH A SYSTEM FOR AUTOMATIC ARTICULATION OF THE JOINT; COMPUTER IDENTIFICATION SYSTEM; INSOLE CENTERING AND ASSEMBLY SYSTEM |
| GB9109271D0 (en) * | 1991-04-30 | 1991-06-19 | British United Shoe Machinery | Shoe support and machine for use in the manufacture of shoes |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2656552A (en) * | 1951-05-22 | 1953-10-27 | United Shoe Machinery Corp | Lasting machine |
| US2686923A (en) * | 1952-06-13 | 1954-08-24 | United Shoe Machinery Corp | Machine for assembling soles with preshaped uppers |
| US3144669A (en) * | 1962-06-07 | 1964-08-18 | Paul A Lamy | Inner sole spotter and retainer |
| US3187358A (en) * | 1962-12-12 | 1965-06-08 | United Shoe Machinery Corp | Insole locating and holding means |
-
1975
- 1975-01-09 US US539902A patent/US3918115A/en not_active Expired - Lifetime
- 1975-10-31 CA CA238,751A patent/CA1036760A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3918115A (en) | 1975-11-11 |
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