close

Вход

Забыли?

вход по аккаунту

?

Патент USA US3051972

код для вставки
Sept. 4, 1962
J. s. KAMBORIAN ETAL
3,051,969
SHOE CONFORMING AND WI'PER HEATING APPARATUS
Filed Feb. 20, 1961
4 Sheets-Sheet 1
11A“
4+1;
12%!
SePt- 4, 1962
3,051,969
J. s. KAMBORIAN ETAL
SHOE CONFORMING AND WIPER HEATING APPARATUS
4 Sheets-Sheet 2
Filed Feb. 20, 1961
17/
118 1/4 196
111
SePt- 4, 1962
J. s. KAMBORIAN ET AL
3,051,969
snow CONFORMING AND WIPER HEATING APPARATUS
Filed Feb. 20, 1961
4 Sheets—5heet 3
95
164
1M;
150 by
:4
I.
I”
Sept. 4, 1962
.1. s. KAMBORIAN ETAL
3,051,969
SHOE CONFORMING AND WIPER HEATING APPARATUS
4 Sheets-Sheet 4
Filed Feb. 20, 1961
//////////ZJ
N
j.
1, '40;
'
4
mmvrozzs
Jzmj .ilanzdaum
3,651,969
Unite 2|
Patented Sept. 4, 1962
2
1
FIG. 5 is a plan view of the wiper driving mechanism;
FIG. 6 is a side elevation partially in section of the
3,051,969
shoe support;
SHOE CONFOING AND WWER
HEATING APPARATUS
FIG. 7 is an elevation showing the wiper heating block
and the portion of the support arm that supports the
Jacob S. Kamborian, 133 Forest Ave, West Newton,
Mass., and Heinz W. Stemmler, Roslindale, Mass.; said
Stemmler assignor to said Kamborian
block;
FIG. 8 is a view taken along the line 8—8 of FIG. 7;
and
FIG. 9 is a vertical section showing the relationship of
Filed Feb. 20, 1961, Ser. No. 90,565
12 Claims. (61. 1.2-8.2)
This invention relates to shoe machines, and particu
larly to machines for lasting the toes of shoes.
10
the last, upper, yoke, heating blocks and wipers.
The improved shoe conforming and wiper heating ap
paratus may be used in conjunction with a toe lasting ma
chine such as the one disclosed in pending application
17, 1960, in the names of Jacob S. Kamborian, Charles
Serial No. 778,188, ?led December 4, 1958 in the names
J. Dyer and Alan G. Baker, there is disclosed a ?exible
shoe conformer comprising a substantially U-shaped yoke 15 of Robert B. Dunlap and Jacob S. Kamborian, now Patent
No. 3,011,186, granted December 5, 1961. Referring to
for engaging a shoe upper mounted on a last during rela
FIG. 6, the machine includes a frame 10‘. A shoe sup‘
tive heightwise movement of the yoke and last prior to the
port 12 comprising a toe rest 13 and a heel clamp 15 is so
wiping of the lasting margin of the upper down upon the
mounted
on the frame that it may be moved heightwise
shoe insole that is also mounted on the last. In said ap
with
respect
thereto. To accomplish this, a sleeve 14 is
20
plication, resilient means are provided to yieldably urge
slidably mounted on the frame for heightwise movement
the yoke against the last during the aforesaid relative
relative to the frame. The sleeve is supported in a ver
movement to ensure that the yoke will perform its func
tical position on the frame by brackets 16 and 18. A car
tion efficiently. Subsequent to the conforming of the
riage 20 is fastened to the sleeve by brackets 22 and 24,
upper to the shape of the last, the lasting margin of the
upper is wiped down against the insole by wipers that are 25 and a pair of collars 26 and ‘28 are rigidly connected to
the sleeve above and below the bracket 22 to provide
moved across the insole. ‘It is desirable that these
for movement of the carriage with the sleeve. A ?uid
wipers be heated so that they may iron the folded lasting
operated motor 36, having a piston rod 32 connected to
In pending application Serial No. 50,177, ?led August
margin ?at against the insole.
the lower end of the sleeve, provides for effecting height
An object of this invention is to provide a shoe con~
wise movement of the sleeve 14 and hence of the carriage
30
forming apparatus having a similar function to that dis
20. The sleeve supports a toe post 34 upon which is
closed in the aforesaid pending application in combina
tion with a means for heating the wipers in all positions
of the wipers. Another object is to provide a compact
mounted the aforementioned toe rest 13.
A toe clamp‘ 36 for clam-ping a last =38 against the toe
rest
13 is slidably mounted in the carriage 20‘ for move
conforming apparatus comprising a substantially U-shaped
ment heightwise of the carriage by being connected to a
yoke that takes up a minimum of space and whose support
plate 40 which is slidably mounted in a guideway 42
is located to a large extent within the frame of the ma
secured to the carriage 20. The plate 40 is connected to
chine and that provides for yieldably supporting the bight
the piston rod 44 of a ?uid actuated motor 46 mounted
and legs of the yoke. (A further object is to provide an
on the carriage 211. Thus, actuation of the motor 46 to
efficient mechanism for applying heat to the wipers in an 40 raise or lower the piston rod 44 causes a corresponding
effective manner in all the positions of the wipers. Other
raising or lowering of the toe clamp 36.
objects of the inventions will become apparent upon a
The heel clamp 15 is engageable with the heel end of
reading of the following detailed description of the in~
the last by being slidably mounted for horizontal move
vention.
ment at the top of the carriage 21). The heel clamp,
These objects are carried out by providing a support 45 comprising a pair of divergent jaws, is connected through
for the yoke comprising a pair of support arms that are
a post 48 to a bracket 56. The bracket 50 is connected
attached to the legs of the yoke and are pivotally mounted
to the piston rod 52 of a ?uid actuated motor 54, so that
on a plate. The bight of the yoke is supported in the
actuation of the motor 54 to move the piston rod 52 causes
plate, and spring means are provided to yieldably urge
a corresponding movement of the heel clamp 15 towards
the plate forwardly against a limit stop. The support 50 or
away from the heel end of the last. A ?uid actuated
arms are connected to each other through a toggle linkage
motor 56 is mounted on the carriage and drives a latch
that has a spring associated with it to apply a force to the
58 into engagement with a toothed bar ‘60 connected to
toggle linkage in such a direction as to yieldably urge the
the post 48 to lock the heel clamp in clamped position.
support arms and the yoke legs connected thereto toward
The frame 16 includes a block 62 (see FIG. 5) upon
each other. The support arms, which are positioned 55 which is slidably mounted a plate 64. A pair of wiper
subjacent the wipers, have heated blocks mounted thereon:
cams 66 are slidable over the plate 64 and have arcuate
that are resiliently urged upwardly by springs into engage
cam slots 68 therein to receive pins 70 that are upstand
ment with the wiper undersurfaces. The blocks have
ing from the plate 64. A pair of ‘wipers 72 are rigidly
depending pins that ?t into oversize holes in the support
connected to the wiper cams 66.
arms ‘so that the blocks may rock or tilt during the move 60
A ?uid actuated motor 74, mounted in the frame 10, is
ment of the Wipers and thus maintain a maximum bearing
connected to the plate 64 and the Wiper cams 66 so as to
against the wipers despite any irregularities in the wiper
concomitantly impart rectilinear translation of the plate
undersurfaces.
Reference is now made to the accompanying drawings
wherein:
FIG. 1 is a plan view of the shoe conforming apparatus
and wiper heating means;
64 with respect to the stationary block 62 and arcuate
movement of the wiper cams 66 with respect to the plate
64 about the center of curvature of the slots 68. The
motor 74 has a piston rod 76 that is coupled to a block
78, the latter being slidable in ways 80 bounding the edge
of a slot ‘82 in the plate 64. Short links 84 are pivotally
FIG. 2 is a view taken along the line 2r—~2 of FIG. 1;
FIG. 3 is a view taken along the line 3—3 of FIG. 1
with the deformable yoke omitted;
FIG. 4 is a view taken along the line 4—4 of FIG. I
with the deformable yoke omitted;
connected at one end to the block 78 and at their opposite
70 ends to levers 86. The levers '86 are pivotally connected
to the plate 64 intermediate their ends by pivots 88, and
at the ends remote from the links 84 to links 90. Each
3,051,969
"
3
link 90, in turn, is pivotally connected to the block 62
at a ?xed point 91. The block 78 has links 92 pivotally
connected thereto at one end. The links 92 are pivotally
connected at the ends remote from the block 78 to the
cam plates 66.
It will thus be seen that movement of the piston rod 76
to the right (FIG. 5) causes a corresponding movement
of the block 78.
Due to the connections at pivots 88
between the plate 64 and the levers 86, movement of the
A}
1960 for a more detailed disclosure of the yoke and the
manner in which it is mounted.
The support arms 132 are connected to each other
through a toggle linkage comprising toggle links 146
pivotally connected to the arms 132 ‘by pivots 148 and
pivotally connected to each other by a toggle pin 150.
The toggle pin extends downwardly through the plate 114
by way of an elongate slot 152 in the plate.
The plate 114 has ways 154 that slidably receive a pri
block 78 to the right causes a corresponding translation 1O mary slide 156 ‘(see FIGS. 3 and 4). Slidably mounted
of the plate 64, but at a slower rate than the block. Due
in ways 158 (FIG. 4) in the primary slide is a secondary
to the links 92, movement of the block 718 to the right
slide 160. The lower end of the toggle pin 150 is seated
causes the wiper cams 66 to swing with respect to the
in the secondary slide, and the primary slide has an
plate 64 about an axis lying at the center of curvature
elongated slot 162 to accommodate the toggle pin.
of the camslots 68 with the pins 70 riding in the cam
The primary slide has a plate 166 dependent there
slots during the translation of the plate 64. The move
from at its forward end in which a hollow bushing 168
ment of the wiper earns 66 imparts a corresponding move
is threaded. A shaft 170‘ is threaded into a dependent
ment to the wipers 72 to cause them to wipe the lasting
?ange 172 of the secondary slide 160 and is slidable in
margin of the upper at the toe of the shoe down against
the insole, as will be described below.
The shoe conforming and wiper heating unit 93 is
mounted in the frame 10 below the wipers and wiper
driving means =(see FIGS. 1—4). The unit includes a
block '94 slidably mounted in horizontal gibs 96 in the
frame 10. The block has a lug 98 depending therefrom
the bushing 168. A compression spring 174, coiled about
the shaft 170 between the ?ange 172 and the bushing 168,
serves to yieldably urge the secondary slide rearwardly in
the ways 158 of the primary slide 156 to a position
wherein the toggle pin 15%) abuts the rearward end 164 of
the slot 162. By adjusting the bushing ‘168 in the plate
166, the spring force yieldably urging the secondary
‘into which a threaded shaft 108 is screwed. The shaft
slide against the primary slide may be adjusted.
100 is rotatable in a bearing 102 ?xed to the frame and
A rod 176 (FIG. 1) having a knob 178 thereon is
is geared through bevel gears 104 and 106 to a rod 108
rotatably mounted in a bearing that is ?xed in the plate
rotatably mounted in the frame. The rod 108 extends
166 and which is similar to the aforementioned bearing
through the frame and has a handle 110 secured thereto. 3O 102 (see FIG. 4). The rod 176 is threaded into a lug
Thus, rotation of the handle 110 will cause the threaded
179 dependent from the plate 114. By rotating the
shaft 100 to rotate in the lug 98 and cause the lug to
knob 178, the position of the primary slide 156, the sec
gether with the rest of the block 94 to slide along the
ondary slide 160 and the toggle pin 150 may be adjusted
gibs 96.
forwardly and rearwardly.
The block 94 includes spaced parallel Ways 112 be 35 A heating block 180, made of heat conductive mate
tween which is slidably mounted a plate 114. A pin 116
rial such as brass, is mounted on each support arm ?nger
projects into each of the ways 112 in a position to inter
135 beneath each wiper 72. The blocks are constructed
sect the plate 114 and act as a stop to thereby limit the
so that their upper surfaces are substantially level with
forward movement of the plate in the ways. The plate
the upper surface of the yoke 138 and bear against the
114 is yieldably urged forwardly against the pins 116 by
undersurfaces of the Wipers 72 (see FIG. 9). Each
two compression springs .118 one of which is shown in
block comprises a forward portion 182 that is substantially
FIGS. 2 and 4. The ‘block 94 has two lugs 120 upstand
parallel to its associated support arm ?nger 135 and a
ing therefrom (see FIG. 3). A rod 122 is threaded into
rear inwardly curved portion 184. An electric heating
a threaded opening in each lug 120 (see FIG. 2). Each
cartridge 186 is located in a bore 138 in each block por
rod 122 has a small diameter extension 124 projecting
tion 182. Each heating cartridge has Wires 191) extending
forwardly therefrom that extends through an opening
therefrom leading to a source of power. The blocks
126 in a projection 128 extending downwardly from the
have pins 192 (FIGS. 7 and 8) extending downwardly
plate 114. Each rod extension 124 has a kerf in which a
therefrom that are received in bores 194 in the support
screw-driver bit may be inserted. A compression spring
arm ?ngers 135. The bores 194 have a larger diameter
118 is wound about each rod extension and extends be
than the pins 192 to permit some degree of play of the
tween the projection 128 and a shoulder 130 at the junc 50 pins in the bores. Spring means are provided in the
ture of the threaded portion of the rod 122 and the rod
?ngers 135 for yieldably urging the blocks 180 upwardly
extension 124. By rotating the rods 12-2 in the lugs 126,
of the ?ngers 135 against the undersides of the wipers
the distance between the shoulders 130 and the projec
72. As shown in FIG. 7, this takes the form of a ball 196
tions 128 may be adjusted, and thus the spring forces
slidable in a bore 198 in the ?nger 135 and receivable
yieldably urging the plate 114 against the pins 116 may 55 in a socket 200 in the undersurface of the block portion
be adjusted.
182. A plunger ‘262 bears against the undersurface of
The plate 114 has a pair of support arms 132 pivoted
the ball, and the plunger is engaged by a compression
thereto at the rear ends of the support arms by pivots 134.
spring 284 interposed between the plunger 202 and a cap
The support arms converge toward each other at ap
226 threaded into the bottom of the bore whereby the
proximately the forward end of the plate 114 and then 60 spring yieldably urges the block 180 upwardly against
diverge from each other to form divergent support arm
the associated wiper. Alternatively, the blocks 180 may
?ngers 135. A shoe conformer 138, in the form of a
be urged upwardly by a leaf spring 208 secured to the
generally U-shaped yoke having a bight>137 and legs
undersides of the ?ngers 135 bearing against a plunger
144 extending forwardly of the bight on opposite sides of
210 extending through a bore in the ?nger, the plunger
the bight, is provided. The plate 114 has a recess 136
210 in turn bearing against the underside of the block
at its forward end adapted to receive the bight of the
(see FIG. 4).
yoke. L-shaped ?anges 140‘ are provided adjacent the
forwardmost extremities of the arms 132 which are adapt
The heated blocks 13% are so located as to bear against
ed to extend into elongate slots 142 in the legs of theyoke
the undersides of the Wipers 72 in both the advanced and
The yoke is fashioned out of a ?exible, deformable mate
supply heat to the wipers so that when the wipers ad
vance across the shoe to wipe the lasting margin of the
(see FIG. 1) and therebyconnect the ?ngers to the yoke. 70 retracted positions of the wipers and thus, continuously
rial, preferably having a low coefficient of friction, such
upper down against the insole, they will, due to their
heated
condition,riron the margin down ?at against the
pending application Serial No. 501,177, ?led August 17, 75 insole and
press down ‘any irregularities in the lasting
as Te?on.
Reference is made to the aforementioned
some
5
margin. During the movement of the wipers from re
tracted to advanced position, the blocks 180 will, due to
the aforementioned spring means be yieldably urged
against the wiper underside. Ideally, the undersurfaces
of the wipers should be ?at or planar, but in actuality
they have irregularities and are not completely flat. The
pins 192 and oversize bores 194 permit the blocks 180 to
6
forwardly against the pressure of the spring 174. The
net effect of these yieldable forces is to cause the upper
216 to snugly conform to the shape of the last 38 during
the downward movement of the shoe support and take
out any wrinkles or irregularities in the upper material,
and to cause the lasting margin 220 of the upper to ex
tend upwardly of the last (FIG. 9).
After the shoe and last have completed their downward
movement, adhesive may be applied in the angle formed
between the upstanding margin of the upper and the
amount of their upper surfaces bearing against the under 10 insole
which will adhesively bond the lasting margin to the
surfaces of the wipers even where the wiper undersides
insole when the lasting margin is subsequently wiped down
deviate from the horizontal.
onto the insole. Although the adhesive may be applied
The shoe conforming and wiper heating unit 93 is so
in any manner desired, it is preferred to apply a thermo
mounted in the machine that the wipers 72 in their move
plastic
quick-setting adhesive in the manner disclosed in
15
ment move just over the upper surface of the yoke 138
Patent No. 2,969,555, granted Jan. 311, 1961, to Jacob S.
and as aforesaid, the upper surfaces of the blocks bear
Kamborian or pending application Serial No. 762,600,
at all times against the undersurfaces of the wipers. The
?led September 22, 1958 in the name of Jacob S. Kam
unit is adjusted in the machine so that all of the inwardly
borian, now Patent No. 3,009,182, granted November 21,
facing surface 212 of the yoke 138 is exposed forwardly
1961. Alternately, precemented uppers may be used
of the wipers 72 in the retracted position of the wipers,
wherein the lasting margin has adhesive applied thereto
and the yoke legs 1414 are adjusted to approximately
prior to the insertion of the shoe in the machine, which
conform to the shape of the last that is to be worked on.
adhesive is activated to bond the lasting margin to the
To accomplish these adjustments, the handle 110 may be
insole under the pressure exerted by the wipers during
rotated to adjust the block 94 in the frame 10 and thus
adjust the position of the yoke 138 relative to a shoe that 25 their wiping action. It is also contemplated that after
the lasting margin has been wiped down over the insole,
is mounted in the shoe support 12. The rods 122 and
it may be secured thereto by tacks, staples or other similar
the bushing 168 are rotated to respectively provide the
desired settings for the springs 118 and 174. The knob
fastening means.
When the shoe and last have completed their down
178 is rotated to adjust the position of the primary slide
156 in the plate 114. Due to the spring 174 yieldably 30 ward movement, the shoe upper is yieldably clamped be
tween the last and yoke as indicated in FIG. 9. The
urging the toggle pin 150 mounted on the secondary
rock to a limited degree in any direction so that the
upper surfaces of the blocks 180 have the maximum
slide 160 against the slot end 164, forward or rearward
movement of the primary slide causes a corresponding
motor 74 is now actuated to move the wipers 72 forwardly
over the shoulder 218 of the last to wipe or fold the lasting
margin 220 of the upper 216 down against the insole 214‘.
movement of the toggle pin 150. Forward movement
of the toggle pin, through the toggle linkage, causes the 35 During this movement the heated blocks 180 bear con
tinuously against the wipers so that the wipers remain
arms 132 to swing about the pivots 134 in a direction to
continuously heated during their movement, and thus
separate the support arm ?ngers 135 and thus move the
iron the folded lasting margin down flat against the insole.
yoke legs 144 apart and rearward movement of the tog
As the wipers move over the shoe, upward pressure may
gle pin causes the yoke legs to move closer together.
When the unit 93 has been adjusted in accordance 40 be applied to the last through the motor 30‘ to create
pressure between the undersurfaces of the wipers and the
with the size and shape of the shoe to be lasted, the
upwardly facing surface of the insole during the wiping
last 38 having a shoe insole 214 and upper 216 mounted
operation. When the wipers havev completed their for
thereon (see FIG. 9) is placed bottom-up on the shoe
ward movement, an increased ‘bedding pressure may be
support 12. At this time the. toe clamp 36 and heel
clamp 15 are brought into engagement with the shoe 45 applied between the insole and wipers. After the com
pletion of the wiping operation, the motor 30‘ is actuated
and remain in engagement with the shoe during the
to lower the last, the motor 74 is actuated to retract the
movements of the shoe and wipers described below. The
wipers, the toe clamp 36 and heel clamp 15 are disengaged
support 12 at this time is so located that the upwardly
from the shoe and the carriage 20 is raised to its initial
facing surface of the insole is above the plane of the
undersurfaces of the wipers 72 and the shoulder 218 of 50 position. The lasted shoe may now be removed from the
the last at the intersection of the last bottom and side
machine.
edges overlaps the inwardly facing wall 212 of the yoke
It should be understood that the present disclosure is
for the purpose of illustration only and that this inven
138 as indicated in FIG. 1.
.The motor 30 is now actuated to lower the last to a
tion includes all modi?cations and equivalents falling
location wherein the upwardly facing surface of the in 55 within the scope of the appended claims. For example,
sole ‘214- is positioned below the undersurface of the
it is within the purview of the invention to use the shoe
‘wipers an amount approximately equal to the thickness
conformer in other organizations than that disclosed,
of the lastingmargin 220 of the .upper. During this
such as in a box-toe trimming machine to conform the
downward movement the bight 137 of the yoke is yield
upper to the shape of the last prior to trimming the box
ably urged forwardly by the springs 118 to maintain the 60 toe, lining and outer leather at the toe end of the shoe.
slide 114 pressed against the pins 116, and the spring
Reference is made to copending application Serial No.
174, by urging the toggle pin 150 rearwardly urges the
34,564, ?led June 7, 1960, in the name of Jacobv S. Kam
legs 139 of the yoke inwardly thereby compressing the de
borian and Heinz W. Stemmler, which discloses a differ
formable yoke. When the yoke can no longer be com
ent shoe conforming apparatus having the same general
pressed, the bight 137 of the yoke is ?exed rearwardly 65 purpose as the shoe conforming apparatus of the instant
of the machine against the pressure exerted by the springs
invention.
118 causing the plate 114 to move rearwardly away from
We claim:
the pins 116. Should the last be substantially wider than
1. In a lasting machine comprising wiper means; a
the space between the yoke legs 139, after the yoke legs
shoe support for supporting a last having ‘a shoe upper
have reach the limits of their compressibility, the yoke
and insole mounted thereon; means for imparting relative
legs are moved apart against the yieldable pressure ex
heightwise movement to the shoe support and the wiper
erted by the spring 174. The movement apart of the yoke
means to cause relative downward movement of the shoe
legs causes the support arms 132 to swing apart about
vsupport with respect to'the wiper means; shoe conformer
the pivots 134, which in turn through the toggle links 146
means for engaging the shoe upper during said movement
75
causes the toggle pin 150 and secondary slide 160 to move
3,051,969
to conform the upper to the shape of the last; means for
leg; means for moving the wipers across the last bottom
to fold the lasting margin of the upper against the insole;
supporting the shoe conformer below the wiper means;
and means for moving the wiper means across the last
a heated block located on each ?nger; yieldable means for
bottom to fold the lasting margin of the upper against the
insole: the improvement comprising means for heating
the wiper means, said heating means being mounted on
urging said blocks upwardly of the ?ngers into engage
ment with the undersurfaces of the wipers; and means
mounting the blocks on the ?ngers to permit rocking move
ment of the blocks with respect to the ?ngers.
7. A lasting machine comprising: wipers; a shoe sup
port for supporting a last having a shoe upper and insole
mounted thereon; means ‘for imparting relative height
the shoe conformer support means.
2. A lasting machine comprising: wiper means; a shoe
support for supporting a last having a shoe upper and
insole mounted thereon; means for imparting relative
heightwise movement to the shoe support and wiper
wise movement to the shoe support and Wipers to cause
relative downward movement of the shoe support with
respect to the Wipers; a shoe conformer comprising a
means to cause relative downward movement of the shoe
support with respect to the wiper means; a shoe conformer
for engaging the shoe upper during said movement to
yoke having a bight and legs extending forwardly of the
conform the upper to the shape of the last; means for 15 bight on opposite sides of the bight for engaging the shoe
supporting the shoe conformer below the Wiper means,
upper during said movement to conform the shoe upper
said conformer supporting means comprising a ?nger
to the shape of the last; means for supporting the yoke
positioned alongside of and connected to the conformer;
below the wipers with the legs extending toward the last
means for moving the wiper means across the last bottom
comprising a ?nger extending alongside of and exteriorly
to fold the lasting margin of the upper against the insole; 20 of each yoke leg and means connecting each ?nger to a
and wiper heating means mounted on said ?nger.
yoke leg; means for moving the wipers across the last
3. A lasting machine comprising: wiper means; a .shoe
‘bottom to fold the lasting margin of the upper against
support for supporting a last having a shoe upper and
the insole; a heated block located on each ?nger beneath
insole mounted thereon; means for imparting relative
a wiper; a pair of pins depending from each block; a pair
heightwise movement to the shoe support and wiper 25 of bores in each ?nger of greater cross-sectional dimen
means to cause relative downward movement of the shoe
sions than the pins for receiving said pins and permit
support with respect to the wiper means; a shoe conformer
the blocks to rock with respect to the ?ngers; and spring
comprising a yoke having a bight and legs extending for
means associated with each ?nger for yieldably urging
wardly of the bight on opposite sides of the bight for en
the ?ngers upwardly into engagement with the under
gaging the shoe upper during said movement to conform 30 surfaces of the wipers.
the upper to the shape of the last; means for supporting
8. A shoe conforming apparatus comprising: a deform
the yoke below the wiper means with the legs extending
able yoke having a bight and a pair of legs extending
toward the last comprising a ?nger extending alongside
forwardly of the bight on opposite sides of the bight; a
of and exteriorly of each yoke leg and means connecting
block; a plate slidably mounted in the block; spring
each ?nger to a yoke leg; means for moving the wiper 35 means yieldably urging the plate forwardly on the block;
means across the last bottom to fold the lasting margin
stop means for limiting the extent of forward movement
of the upper against the insole; and a heated block on
of the plate under the in?uence of the spring means; means
each ?nger extending upwardly thereof to heat the Wiper
on the plate for supporting the bight of said yoke; a pair
means.
of support arms pivotally mounted on said plate and
4. A lasting machine according to claim 3, wherein the 40 extending alongside said yoke legs exteriorly of said yoke;
heated blocks are in engagement with the undersur-face
means connecting each support arm to a yoke leg; a pri
of the wiper means.
'
i
mary slide mounted in the plate; a secondary slide slid
5. A lasting machine comprising: wipers; a shoe sup
ably mounted in the primary slide; aligned slots in the
port for supporting a last having va shoe upper and insole
plate and primary slide; a toggle pin mounted in the
mounted thereon; means for imparting relative height
wise movement to the shoe support and wipers to cause
relative downward movement of the shoe’ support with
45
secondary slide and extending upwardly through said
slots; a toggle link pivotally connected to each support
arm, said links being pivotally connected at their ends
respect to the wipers; a shoe conformer comprising a
remote from the support arms to said toggle pin; and
yoke having a bight and legs extending forwardly of the
spring means interposed between said primary and sec
bight on opposite sides of the bight for engaging the shoe 50 ondary slides for yieldably urging the secondary slide
upper during said movement to conform the shoe upper
rearwardly of the primary slide whereby the support
to the shape of the last; means for supporting the yoke
arms and the yoke legs connected thereto are yieldably
below the wipers with the legs extending toward the last
urged toward each other.
'
comprising a ?nger extending alongside of and exteriorly
9. A shoe lasting apparatus for use with a last having
55
of each yoke leg and means connecting each ?nger to a
a shoe upper and insole mounted thereon comprising:
yoke leg; means for moving the wipers across the last
wiper means; means ‘for moving the wiper means in a
bottom to fold the lasting margin of the upper against
direction to cause it to move across the insole to wipe
the insole; a heated block mounted on each ?nger; and
the lasting margin of the upper upon the insole; a heated
yieldable means for urging said blocks upwardly of the
block positioned below the Wiper means; and means for
?ngers into engagement with the undersurfaces of the
yieldably urging the block upwardly against the under
wipers.
'
surface of the wiper means.
6. A lasting machine comprising: Wipers; a shoe sup
10. A shoe lasting apparatus for use with a last having
port for supporting a last having a shoe upper and insole
a shoe upper and insole thereon comprising: wiper means;
mounted thereon; means ‘for imparting relative height
means for moving the wiper means in a direction to
wise movements to the shoe support and wipers to cause 65 cause it to move across the insole to wipe the lasting
relative downward movement of the shoe support with
margin of the upper upon the insole; a heated block posi
respect to the wipers; _a shoe conformer comprising a yoke
tioned below said Wiper means; yieldable means for urging
having a bight and legs extending forwardly of the bight
on vopposite sides of the bight for engaging the shoe upper
during said movement to conform the shoe upper to the
‘shape of the last; means for supporting the yoke below
said block upwardly into engagement with the under
surface of the wiper means; and means supporting the
block for rocking movement.
11. A shoe lasting apparatus for use with a last having
a shoe upper and insole mounted thereon comprising:
wiper means; means for moving the wiper means in a
the wipers with the legs extending toward the last com
prising a ?nger extending alongside of and exteriorly of
each yoke leg and means connecting each ?nger to a yoke 75 direction to cause it to move across the insole to wipe
3,051,969
the lasting margin of the upper upon the insole; a heated
block positioned beneath the wiper means; a pair of pins
depending from the block; a support ?nger located below
the block; a pair of bores in the ?nger of greater cross
sectional dimensions than the pins for receiving said pins
and permitting the block to rock with respect to the
?nger; and spring means associated with the ?nger for
yieldably urging the ?nger upwardly into engagement
10
mounted in the plate; a secondary slide mounted in the
primary slide; aligned slots in the plate and the primary
slide; a toggle pin mounted in the secondary slide and
extending upwardly through said slots; a toggle link pivot~
ably connected to each support arm, said links being
pivotably connected at their ends remote from the support
arms to said toggle pin; and spring means interposed be
tween said primary and secondary slides for yieldably
urging the secondary slide rearwardly of the primary
with the undersurface of the wiper means.
12. A shoe conforming apparatus comprising: a de— 10 slide whereby the support arms and the yoke legs con
nected thereto are yieldably urged toward each other.
formable yoke having a bight and a pair of legs extending
References Cited in the ?le of this patent
forwardly of the hight on opposite sides of the bight; a
plate located rearwardly of the yoke; means on the plate
UNITED STATES PATENTS
for supporting the bight of the yoke; a pair of support
2,108,859
Kamborian ___________ __ Feb. 22, 1938
15
arms pivotably mounted on said plate and extending along
2,153,570
Iorgensen ____________ __ Apr. 11, 1939
side said yoke legs exteriorly of said yoke; means con
necting each support arm to a yoke leg; a primary slide
2,986,753
Gilbride ______________ __ June 6, 1961
Документ
Категория
Без категории
Просмотров
0
Размер файла
987 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа