close

Вход

Забыли?

вход по аккаунту

?

Патент USA US3023446

код для вставки
March 6, 1962
w. J. MILLER ETAL.
SHOE PRESSING MACHINE
Filed May 22, 1959
2 Sheets-Sheet' l
Q
220
195
-,21o
255
20e ¿39(206 232
%\\\\\\\\‘
w/L so 1J 6.5611905051?)
1
'
f77-7012115 #s
fig"
3,623,436
Patented Mar. 6, 1962
2
FIGURE 2 is an elevation view taken from the right
3,023,436
SHGE PRESSING MACHINE
William J. Milier and Wilson Schroeder, Washington,
Mo., assignors to Western Supplies Company, St. Louis,
Mo., a corporation of Missouri
Filed May 22, 1959, Ser. No. 815,100
14 Claims. (Cl. i12-53.5)
i
side of FIGURE 1;
FIGURE 3 is a view in section taken along the lines
3_3 of FIGURE l;
FIGURE 4 is an enlarged side view of the wiping
mechanism with parts shown in section;
FIGURE 5 is a plan view of one-half the wiping
mechanism;
FIGURE 6 is a view in section taken along the lines
This invention relates to a shoe last ironing and wiping
mechanism wherein the upper leather section of a shoe 10 6_6 of FIGURE 4;
FIGURE 7 is a view in section taken along the lines
being constructed has a portion of the leather ironed
7_7 of FIGURE 4;
about the lower surface of a shoe last.
FIGURE 8 is ia view in section taken along the lines
The present mechanism is adapted to iron the lower
3_8 of FIGURE 1;
portion of a shoe upper about a shoe last. A last carry
FIGURE 9 is a view in section taken along the lines
_ing the leather upper which is to be ironed will be placed 15
9_9 of FIGURE l;
upon a pair of pivotally converging wiping blocks and
FIGURE l0 is a view in section taken along the lines
held in place by a heel pressing plate, The wiping block
Iii-Ill of FIGURE 1;
and the pressing plate will include heating means to aid
FIGURE l1 is a view in section taken along the lines
in the ironing operation.
A pneurnatically operated power source will convey a 20 11_11 of FIGURE 8;
FIGURE 12 is a view in section taken along the lines
holding pad down against the top of the shoe last and
12_12 of FIGURE 8;
will simultaneously bring together the members of the
FIGURE 13 is a plan view of the roller cam assembly;
wiping mechanism and press against the heel of the shoe
FIGURE 14 is a partial front elevation view of the
last and ironing block. The source of power is derived
from a pedal operation. A second actuation of the same 25 roller cam assembly;
FIGURE 15 is a partial front elevation of the wiping
pedal will reverse the pneumatic liow, thereby releasing
the various moving parts from the ironing operation.
mechanism and camming assembly; and
FIGURE 16 is a view of the bottom of a shoe last
Thus, a second manipulation or depression of the pedal
and shoe upper after an ironing operation has been per
will release the heel ironer, separate the wiping members
30 formed.
and raise the holding pad away from the shoe last.
A frame 30 for the ironing mechanism is illustrated as
ln `addition to the foregoing, it is an object of the
comprised of a plurality of metal angle members welded
present invention to provide a machine which will iron the
together. The base of the frame 30 includes four angle
lower leather section of a shoe upper about a shoe last.
members 3l, 32, 33 and 34 having their ends butt-welded
More particularly, it is an object of this invention to
provide a mechanism which will perform the described 35 together so as to form a rectangle upon which the mecha
nism may rest. A plurality of flat metal plates 35 may
ironing operation automatically `and rapidly with com
be welded to the corners beneath the base to provide feet
plete assurance of a successful ironing operation.
for the structure.
Another object of the invention is to provide an iron
The embodiment illustrated has a plurality of vertical
ing mechanism of the type described which may be ad
40 corner posts 36, 37, 33 and 39, shown as angle mem
justed for various shoe sizes.
bers butt-welded to the base and extending upwardly in
Still another object of the invention is to provide an
equal lengths. The outline of the frame 30 is completed
adjusting mechanism on an ironing machine of the class
with a plurality of angle members '40, 41, 42 and 43,
described, which adjusting mechanism incorporates a
butt-welded to the vertical members 36, 37, 38, and 39
quick adjustment feature for various shoe sizes, thereby
automatically accounting for the diiîerent problems pre 45 in parallel fashion to the angle members 31, 32, 33
and 34 of the base.
sented by diñerent shoe sizes.
A further object of the invention is to provide a shoe
Reinforcing braces m-ay be added to the frame as de
sired. In the illustrated embodiment, a cross bar 44
spans the distance between the angles 36 and 37 and a
Still a further object of »the invention is to provide a 50 similar cross bar <45 extends between the angles 33 and
39. The bars 44 ‘and 45 are placed parallel to and spaced
shoe ironing mechanism which includes an adjusting fea
ironing mechanism which incorporates heating elements
to assist the ironing operation.
between the base and the top of the frame.
`
ture which automatically adapts itself to the slope of the
A pair of angle members 46 and 47 are cut to fit be
heel section.
tween the members 36 and 39 and are each welded to
Yet yanother object of the invention is to provide a
heel ironing mechanism which will perform the desired 55 the last mentioned angles for a purpose which will yap
pear. The portion of the frame presently being de~
ironing operation after the shoe last has been clamped
scribed is completed with a pair of mounting plates which
into the mechanism and will complete the ironing opera~
include a plate 4S across the top of the frame parallel
tion before the shoe last is released from the mechanism.
to the angle member "42 yand butt-welded to the angle
A further object of the invention is to provide a shoe
members
41 and 43, and a plate 49 parallel to the angle
ironing mechanism having means for adapting to the 60
member 31 and butt-welded to the angle members 32
various slope configurations of the sole section of a shoe
and 34. The plates 43 and `49 will be used for mount
last.
ing and supporting various elements `of the mechanism.
Still an additional object of the invention is to provide
A housing 56 may be mounted on top of the base 30.
a heel ironing mechanism wherein the power source may
The housing 56 is formed of a plurality of steel plates
be actuated while yet permitting complete freedom of 65 welded together and cut to shapes which will support the
use of the operator’s hands and arms.
various elements of the machine in their functional posi
Further objects will be apparent from the more de
tions as will appear. Accordingly, the housing 56 in
tailed description of the invention which will follow.
cludes a pair of vertical walls 57 and 5S. The vertical
In the drawings:
walls or plates 57 and 5S are of identical shapes, each
FIGURE l is a front elevational view of the inven
having a horizontal base 59 of roughly two-thirds the
length of the angle members 41 and 43. Shorter still is
tion;
v_ _
3,023,436
3
4
a plate 60 welded to the bases 59 of the vertical plates.
has a pair of ears 116 and 117 (FIGURE 10) extending
57 and 58 in horizontal fashion. The plate 60 has a.
upwardly from the body.
rearward edge 61 and a forward edge 62. The rearward
These ears have vertical slots 118 and 119 which are of
edge 61 is flush with the rear of the plates 57 and 58 while:
an elongated shape. The upper surface of the casting
the forward edge 62 terminates the plate 60 short of the:
113 to which the ears 116 and 117 are attached at their
forward edges of the vertical plates 57 and 58. The hori-4
base is in the form of a horizontal flat surface 121 (F1G~
zontal plate 60 is approximately 1/3 the Width of the ma*
URE 8).
chine, or of the angle members 40 and 42. The horizon
A shaft 123 extends through the slots 118 and 119.
tal plate 60 and the bases 59 of the vertical plates 57
One end of the shaft 123 is elongated so as to extend
and 58 are Welded to the frame 30 by way of the angle. 10 beyond the casting 113 and has attached to it a hand
member 42 and the plate 48.
wheel 124 (FIGURE l0) by way of a setscrew 125. The
Each of the vertical plates 57 and 5S has a foot-like por~
opposite end of the shaft 123 may be cut off just beyond
tion formed by the base 59 and an upper surface 63 which
the ear 117.
is at an angle to the horizontal base. A vertical forward.
Rigidly fixed to the shaft 123 between the ears 116 and
wall 64 in each plate 57 and 58 intersects the upper and'V 15 117 is a multiple faced element 130. The element 130 is
rearward end of the sloping edge 63 and cooperates with.
Cut so that for every face thereon there is an opposite
a rearward vertical edge 65 of the plates 57 and 58 to
parallel face. Thus, as illustrated, the element 130 has
define the vertical extension of each plate 57 and 58. At.
six faces which are useful in compensating for shoe size,
its upper end this extension slants forwardly, the edge 64»
the faces 131 and 132 being parallel and opposite, the
joining a slanting edge 66 and the edge 65 joining a slantfaces 133 and 134 being parallel and opposite and the
ing edge 67. The forward sloping portion of the plate
faces 135 and 136 likewise being parallel and opposite.
defined by the edges 66 and 67 terminates in a vertical.
It will also be noted that the distance between the various
edge 68 which is not as far forward as the toe of the.
pairs of faces just described will vary with each pair.
foot-like portion 63.
Accordingly, as the element 130 is rotated by rotation of
A plate 70 having a height equal to the length of the` 25 the handle 124, the distance between the bearing surface
vertical edge 68 has a length which permits the plate 70A
95 and the horizontal surface 121 may be varied accord'
to be butt-welded to each of the edges 68 of the platesy
ing to which set of faces of the element 130 is employed.
57 and 58.
A relatively narrow plate 71 extends between the ver
The shaft 1‘10 has intermediate its ends a peg 140 ex
tending through it having a short end 141 projecting
tical plates 57 and 58 just rearwardly of the sloping edge: 30 through one side of the shaft 110 and a longer headed
63 so that the upper surface 72 of the plate '71 is co~4
planar with the sloping edge 63.
end ’142 projecting from the other side of the shaft 110.
The ends 141 and 142 of the peg 140 will ride within
the slots `101’7’ and 108 as the shaft 110 moves vertically
within the hollow pipe 103. A peg A-145 is rigid-ly at
To support a vertical mounting surface forward of the
plate 70, a pair of plates 76 and 77 are secured by bolts.
78 to the vertical plates 57 and 58. The plates 76 and.
tached to the vertical plate 79 above the peg 142i (it will
77 extend forward of the plate 70 and have a vertical
be noted that the peg 142 extends far enough to have its
plate 79 butt-welded to the forward edge of each of them.
The plate 79 extends above the before described elements:
of the housing 56 to facilitate the mounting of an ad
justing mechanism.
The adjusting mechanism 84 is attached to the plate
79 by a clamp 85 which may be cast in the shape shown.
in FIGURES 1, 2, and 3. This casting 85 will have a
threaded cylindrical section 86 and a wing 87 having
end behind the vertical plate 79.) A tension spring 146
has its ends 147 and 148 connected to the pegs 142 and
1-45. When so connected the spring 146 is stressed so as
40 to -bias the pegs 142 and 145 toward one another. The
peg 145 being ñxed, the effect of the spring 146 is to urge
the peg 142 upwardly and therewith the shaft 110. The
upward urging of the shaft 1=10 tends to maintain the ele
ment 130 in contact with the end 95 of the threaded bolt
countersunk holes 88 (FIGURE 9) by way of which
90 at all times.
bolts 89 may be used to secure the casting 85 to the plate 45
The lower end of the shaft 1110 is planed off in opposite
79.
parallel surfaces 150 and 15‘1 (FIGURE 1). A hole
A threaded shaft 90 extends through the casting 85 in
extending from the surface 150 through to surface 151
rotatable cooperation with the threads of the pipe portion
permits the rotational retainment of a short shaft 152.
86. The upper end of the shaft 90 has a wheel 91 at
tached to it in rigid fashion as at 92. A handle 93 may
be freely rotatable upon the outer rim of the Wheel 91
to provide ease of turning. Thus, as the handle 93 is en
gaged by the operator to rotate the wheel 91, the shaft
90, which rotates with the wheel 91, will be caused to
rise or descend within the threaded section 86 of the cast
ing 85. A lower end 95 of the shaft 90 is finished to a
relatively smooth horizontal bearing surface.
A pair of straps 100 and 101 are bolted at 102 to the
plate 79 and encircle so as to rigidly retain a hollow tub
ing 103. The tubing 103 is placed below the casting 85
so that its axis coincides with the axis of the threaded tub
ing 86. The inner surface 104 of the hollow tube 103
will preferably be machined to a smooth bearing surface.
A pair of diametrically opposed slots 107 and 108 are
cut through the tube 103 so as to have an open end at
the bottom of the tube.
A rod 110 is of such a diameter as to be slidable ver
tically within the hollow tube 103. The upper end 111
of the rod 110 may be squared olf to facilitate the at
tachment of a rapid Size compensator 112. The size
compensator 112 may have a cast frame 113 of a size
adapted to fit over the squared oif portion 111 of the
-Fixedly secured to the extended ends of this shaft 152 are
a pair of ears 153 and 154 of a holding plate 155. Thus,
the plate 155 is pivotal about the end of the shaft `110.
The function of the adjusting mechanism heretofore
described may be clearer upon a complete description
of the instant invention, but it will be presently ap
preciated that the instant machine is adapted 4for use with
all sizes of women’s shoes. The adjusting mechanism is
adapted to support a shoe by holding down the upper
rear portion thereof. A rough adjustment is provided by
60 rotation of the wheel 91 by way of the handle 93.
This
rotation of the threaded shaft 90 causes that shaft to
move up or down within the casting 85. As the lower
end of the bolt 90 moves upwardly or downwardly it
determines the upper limits of the element 130 attached
to the shaft 110 by way of the casting `113. The tension
spring 146 constantly urges the shaft `110 in an upward
direction. With the adjusting mechanism set for the
longest and therefore the tallest shoe, the surfaces of
the element 130, which are closest together, will be set
in contact with the bolt 90 and the surface 121. The ele
ment 1‘30, having its faces designed to correspond to the
different shoe sizes, maybe subsequently rotated to permit
the machine to accommodate a smaller shoe. Accord
ingly, as a pair of surfaces of the element 130 which are
otherwise conveniently attached thereto. The castingv 113 75 further apart are placed in contact with the bolt 90 and
rod 110 so that it may be bolted to the rod at 114 or
3,023,436
5
8
the surface 121, the vertical slots 118 and 119 will per
mit the shaft 110 to move downwardly against the bias of
the tension spring 146. Thus, the element 130 provides a
a guide to position the wiper blocks which are attached
to the bolts 206 through 210.
The blocks 194 each have two sections `220 and 221
rapid size adjustment feature alleviating the necessity for
associated with them. The sections 220 and 221 are
rotation of the wheel 91 for every different size shoe.
arranged in line from the front toward the »back of the
A holding mechanism 163 for retaining a shoe in the
mechanism. The forward section 220 has a lower plate
machine may include a pneumatic air cylinder 164 bolted
'222 into which the bolts 206, 207 and 208 are threaded.
at 165 and 166 to the vertical plate 70. The pneumatic
Each of the bolts 206, 207 and 208 extends from the
air cylinder 164 will 4be of a conventional type having
plate 222 an equal ‘distance so that the plate 222 will be
an air inlet connection 167 an-d an air outlet connection 10 parallel to the rectangular block 194 when the heads 211,
168 which may be coaxial with the attaching nut 165
212 and 213 abut the lower surface of that rectangular
and 166. In the conventional pneumatic air cylinder of
block 194.
'
the type being described, a piston 170 is axially movable
Arranged between the plate 222 and the rectangular
within the cylinder according to whether air is injected
block V194 about the bolts 206, 207 and -20‘8 are a plu
into the cylinder or taken out in a manner to be de
scribed. 'I‘he piston 170, in the instant application of the
15 rality of compression coil springs .223, 224 and 225
which tend to maintain the plate 222 and the block 194
air cylinder 164, wil have a threaded end 171 for the at
separated at all times. The plate 222 has a ñat extension
tachment of the adjustable holding means. A casting
»227 corresponding to the valley 218 of the lower block
172 of inverted T-shape has a nut portion 173 integral
194.
with it which has a threaded portion for mating with the 20
A plate 232 has a plurality of countersunk holes 233
threaded portion 171 of the piston 170. The T-shaped
and 234 to facilitate its attachment by bolts 235 and 236
section 172, has the base of the T elongated from either
to the plate- 222. The upper surface 238 of the plate
side of the shank 174 of which the threaded nut portion
232 has a portion 239 which is cut out in a shape to
173 is a part. A pair of wings or flanges 175 of the in
conform to a part of the sole of the last which is to
verted T are similarly elongated as illustrated in FIG 25 be placed against it.
URE l1.
Attached to the remaining bolts 209 and 210 is a
A slider 179 is adapted for sliding engagement with
plate 243. The plate 243 has a flat extension 244 which
the ñanges 175 of the inverted T-shape casting 172. For
will tit into the valley 218 when the plate 243 is depressed
this purpose, the slider 179 has a pair of opposed elon
into contact with the block 194.
gated horizontal flanges 180, each connected to a vertical 30
A pair of bolts 245 and 246 may be used to attach a
portion 181 which is in turn connected to a common hori
plate 247 to the plate 243 by way of countersunk holes
zontal portion 182. The ilanges 180 are separated by
249 and 249. The plate 247 has a portion of its upper
a distance greater than the thickness of the shank -173 of
surface 251 cut away to provide a rounded bottoming
the casting 172 and are also separated from the horizontal
area 252 for that part of the shoe last which may be
portion 182 by a distance greater than the thickness of the 35 pressed upon the plate 247. The area 252 cooperates
skirts 175 of the casting 172. Therefore the slider 179
with the area 239 of the plate 232 to provide a con
may slide freely along the length of the casting 172 while
toured area which will conform generally to the shape
being retained thereon by the flange 180.
of the sole of a shoe last. It will be recognized that the
One side of the slider 179 will have a threaded hole
contoured surface formed by the cut outs 239 and 252
184 through which a thumb screw or key 185 may rotate. 40 together forms only one-half of the surface upon which
An end 186 of the key 185 will extend through to the
a shoe last will rest, the other half of that surface being
inner side of the slider 179 and opposite the edge of a
provided by a pair of blocks similar to but opposite to
Skirt 175 of the casting 172. When the key 185 is ro
the blocks 232 and 247.
tated so as to extend the end 186 thereof, the slider 179
An arm 258 is attached to each block 194 at its lower
may be locked frictionally against sliding movement 45 forward surface and at an angle to the block 194 so
along the casting 172.
that when the block 194 is mounted upon the plate 71
The bottom surface of the slider 179 has a cylindrical
the arms 258 will be generally vertical. Each arm 258
extension 188 which is threaded at its ends 189. A ñat
acts as a cam follower for determining the position of
plate 190 has a narrowed top which is internally threaded
the ironing mechanism 192. The cam followers 258 each
to be attached to the cylindrical portion 188 of the slider 50 curve inwardly at their lower ends 259 (as viewed in
179. The ñat plate 190, which may be of a generally
FIGURE l5). The arms 258 have a slightly reduced
rectangular shape, will have a buiîer 191 attached to its
section 260 at their tops to eliminate any' interference by
lower surface. The buffer 191 may be of a sponge-like
adjacent parts of the frame 30 with the movement of
substance such as rubber or plastic.
A pair of wipers comprising a wiper assembly 192 are
pivotally mounted to the plate 72 by a bolt 193. As can
been seen, the wiper assembly 192 includes two separate
the arms 258.
Engaging the arms 258 is a three roller camming de
vice 265.
As can be seen also from FIGURES 13 and
14, the camming device 265 includes one vertical plate
266 to which are equal spaced and attached three rollers
sections. Each section has a base block 194 which is
268, 269 and 270 by means of bolts 271, 272 and 273. The
generally rectangular in shape as viewed from the top
and which has a flat arm 195 depending from one end 60 heads 274 of the bolts 271, 272 and 273 may be at the
ends of the rollers 268, 269 and 270 opposite the plate
196. Through the arm 195 is a hole 197 by which the
266 whereas the bolts may be attached to that plate by
bolt 193 attaches the -block 192 to the plate 72. The
nuts 275, 276 and 277. If proper locking means are
arm 195 is set over somewhat toward the opposing block
utilized, it will be recognized by those skilled in the art
so that the arms of each block may be arranged in tan
65 that the arrangement of the rollers upon the plate 266
dem, thereby being pivotal about a single point 193.
may be such that the rollers 268, 269 and 270 are freely
The block 194 will have a plurality of holes ‘198
rotatable about the bolts 271, 272 and 273 by which
through it, for slidably accommodating a plurality of
they are attached to the plate 266.
bolts 206, 207, 288, 209 and 210 for a purpose which will
The plate 266 may include a downwardly extending
be made clear. The bolts 206 through 218 have flat 70 projection 279 to provide a means of a welding attach
heads 211, 212, 213, `214, and 215 of larger diameter
ment of the plate 266 to an arm 282. The arm 282 is
than that of the hole with which each is associated.
elbow-shaped, having a vertical portion 283 and a hori
Each rectangular block 194 has a valley 218 cut into its
zontal portion 284. The plate 266 is welded to the upper
top surface and extending most of the distance defined by
end 285 of the vertical portion 283, and the upper end
the length of the block 194. These valleys 218 serve as 75 285 may be cut away as at 286 for that purpose. Oppo
3,023,436
7
8
`site the plate 266, an S-shaped member 288 is welded
air inlet line, which may be assumed to be the line 335,
and an air outlet line which may be assumed to bekthe
to the end 285 of the vertical` arm 283. The member
288 has a hole 289 through it.
The end 290 of the arm 284 is welded to a bifurcated
member 291. The member 291 may comprise a plate
folded so that the two forks 292 and 293 will be parallel
`to one another. The_forks 292 and 293 will surround
the endv 290 of the arm 284 and extend at right angles
to the arm 284.
The ends of the forks 292 and 293
Vhave holes 294 and 295 through them to accommodate
>a bolt 296. The bolt 296 provides a pivotal attachment
for an arm 300 between the forks 292 and 293 and
_ extending upwardly therefrom.
The arm 300 extends upwardly from the member 291
to a point slightly above the wiping mechanism 192 at
» which. point a block 302 is welded to it. The block 302
will be wider than a shoe last and at least as long as the
heel portion of such a last. The block 302 has a pair of
ears 303 at its sides.
line 336. The cylinder 325 will have an air inlet line
which may be assumed to be the line 338, and an air
outlet line which may be assumed to be the line 339.
Both air inlet lines 335 and 338 may be connected by
appropriate piping, such as a T-joint 340, to a single air
output terminal 341 of a conventional valve box 342.
Similarly the air outlet line 336 and 339 may be con
nected by a T-piping 343 to a single air inlet terminal
344 of the valve box 342.
The valve box 342, which may -be conveniently attached
near the base of the frame 30 as by bolts 350 through
the frame members 31 and 49, is of the type operated by
a foot pedal. Upon initial operation of the foot pedal
354 compressed air, which may be obtained by way of
an air input line 355 to the valve box 342, will be passed
into the lines 33'5 and 338. In other words, the initial
operation of the foot pedal 354 connects the line 335 and
338 with the line 355. The valve box 342 is designed to
maintain that connection until a second operation of the
pedal 354 is lmade. Upon that second operation of the
`foot pedal 354, the connection Ibetween the lines 335 and
338 and the line 355 will be broken and in its place a
425 connection will be made between the lines 335 and 338
A second block 305 is pivotally mounted upon the
Lblock 302 by means of a transverse pivot pin 306 which
extends through holes in the ears 303. The plate or block
,305 is slightly curved to conform to the shape of the heel
section of a shoe last.
A threaded hole 310 extends through the arm 300
with an air exhaust terminal 356 in the valve box 342.
`-opposite the S-shaped member 288. A bolt 312 extends
The shoe last is manually held in position against the
through the threaded hole 310 and has a handle 313
plate 155 until the last is engaged by the machine. It will
fixedly attached to one end. The other end of the bolt
4be observed that the piston 170 'will travel only a rela
312 passes through the hole 289 in the member 288 and
v`has nuts 314 and 315 von opposite sides of the member ,30 tively short distance before engaging the upper portion
of a shoe last compared to the greater distance traveled
,_ 288. »By turning the handle 313 the bolt 312 and the
by the piston 320 before it reaches its maximum upward
nuts 314 and 315 will rotate, moving the arm 300 toward
distance. Because of this difference in the distance
or away from the arm 283. Thus, the blocks 302 and
305 yagainst which a heel portion of a shoe last is to rest
traveled between the two pistons 170 `and 320, the hold
ing pad 191 will reach the top of the shoe last being worked
may be moved forward or rearward relative to the wiping,`
mechanism 192 according to the size of the shoe last.
upon before the heel ironer plate 305 engages the shoe
last and before the wiping mechanism 192 has its block
The bifurcated member 291 is attached to a shaft 320
.by means of a nut 321 which will be turned onto the
pivoted together. By this means, the shoe last is well
threaded end of the shaft 320 after that shaft has been
maintained in the mechanism before the ironing opera
passed through holes in the bifurcated member 291 and 40 tion is begun.
the arm 284 provided for that purpose. Another nut 322
vIt is desired to apply heat with the ironing and wiping
limits the insertion of the shaft 320 and serves to tighten
operation. For this purpose the heel block and wiping
that shaft to the member 291. The shaft 320 forms
mechanism block are heated by conventional heat car
part of a piston movable within an air cylinder 325 which
tridges of a type well known in the `art. Such heel car»
is attached by bolts 326 to the cross members 46 and 45 tridges may comprise two lines 360 and 361 connected
47 of the frame 30. The cylinder 325 is similar to the
to cartridges 362 and 363 in the heel block 302. The lines
cylinder 164 and has a `pair of air connections 330 and
v 360 and 3‘61 will be connected to a conventional alternat
f 331. The air cylinder 325 and piston 320 determine the
ing current source. The blocks 302 and 305, being con
motion of the bifurcated member 291. Since the arms
structed of a heat conducting material, such as copper
282 and 300 are both attached to the bifurcated member 50 or brass, will assure the transfer of heat from the block
291, both the arms 282 and 300 will move vertically
302 to the block 305. Heat will ybe further distributed
upon motion of the shaft 320.
throughout the latter block. Accordingly, the block 305
It can be seen that while the shoe last is manually
will supply heat to the heel of a shoe last.
held against the plate 155 and as the heel plate 305
Similarly, a pair of lines 367 and 368 connect to a pair
reaches the heel section of a shoe last, the cam rollers 55 of heaters 369 and 370. The lines 367 and 368 will be
268, 269 and 270 will have moved up, urging the cam
connected to a conventional source of A.C. current.
followers 258 toward one another. As the cam follow
Since the blocks comprising the sections 220 and 221 of
ers V258 move together the blocks comprising the wiping
the wiping mechanism 192 will be constructed also of a
Vmechanism 192 will pivot together about their pivot 193.
heat conducting substance, the heat derived from the
During this motion, it is the two outermost cam rollers 60 heaters 369 and 370 will be distributed throughout the
268 and 270 which operate against the outer surface of
section 220 and transferred to the section 221 for distri
the arms 258 to urge those arms inwardly.
«bution throughout that block. The application of heat
.As the shaft 320 moves downwardly again the heel
to the block 305 and the sections 220 and 221, which may
ironing plate 305 will move downwardly away from the
range between 2S() and 350 degrees F., assures the success
heel of the shoe last and the cam rollers will simultane 65 of the ironing operation.
ously move downwardly. Upon downward movement,
Operation
the central cam roller 269 will operate upon the inner
surfaces of the cam follower 258, and, as the cam roller
269 moves downwardly, it will urge those arms 258 apart,
In readiness for use, the machine hereinbefore described
thereby separating the blocks which comprise the wiping 70 will be in such condition that the air has been exhausted
-from the cylinders 1‘64 and 325 which control the various
mechanism 192.
ironing mechanisms. The holding pad 191 connected
Although the air cylinders 164 and 325 are conven
to the piston 170 will accordingly be -in a raised position
tional designs and as such are not of themselves part of
away from the shoe last, and the heel ironing plate 305
vthis invention, the power lines between these cylinders
may be brieñydescri-bed. Thecylinder .164 will have an 75 will be loweredaway from the shoe last. The two pivotal
3,023,436
halves of the wiping mechanism 192 will be separated
about their common pivot 193.
During the course of use, the machine may -be applied
to all sizes of any particular shoe style with the only ad
justment necessary being the manipulation of the rapid
adjustment mechanism 112. The only limitation beyond
the scope of the rapid adjustment mechanism 112 is the
length of the heel which is to be attached to the completed
product. In other words, the machine may be set for
10
nected to a compressed air source (not shown) to be _
connected to the single terminal 341. Since a pair of
lines 335 and 338 are connected to the terminal 341, corn
pressed air Will be admitted through those lines to the
cylinders 325 and 164. This compressed air will cause
the piston 326 and 170, respectively, «of those cylinders
toibe extended from the cylinders. (The valve 342 also
causes the terminal 344 to be connected to exhaust when
automatic accommodation of all shoe sizes for any one 10 the pedal 354» is initially operated so that the lines 336
and 339 can exhaust one end of their respective cylinders
heel length, but if shoes which are to use a different heel
as the pistons move.) The piston 170 having a relatively
length are to be operated upon, a new setting of the hold
short distance to travel will meet the end of its extension
ing plate 155 by way of the wheel 91 will be necessary.
To begin an operation, the operator may select the
largest shoe last upon which operation is to be performed.
This last may be inserted into the mechanism by placing
the sole of such a shoe last upon the blocks which corn
first so that the soft holding pad 191 will engage the
upper forward portion of the shoe last and hold it against
the wiping mechanism 191. Immediately following, the
piston 320 will be extended upwardly carrying with it
the heel ironing block 305 and, by means of -the two ex
prise the wiping mechanism 192. With this shoe last so
treme
rollers 263 and 270, the cam `followers 258 will be
placed and manually held there, the mechanism may be
set for the above-described series of operations by rotat 20 urged together, pivoting together the blocks of the wip
ing mechanism 91. The Valve block 342 is designed to
ing the wheel 91 by means of the handle 93. For this
hold
the machine in that immediately described condi
rotation the quick adjusting element 112 should be set
tion until a second depression yof the pedal 354 occurs.
so that the minimum distance between the shaft 95 and
Meanwhile, as the heel ironing block 305 rests `against the
the plate 155 is attained. Thereafter, if the plate 1‘55 is
heel
portion of the shoe last and as the wiping mecha
lowered by rotation of the wheel 91 so that it rests upon 25
nism 191 remains in the wiping position, heat is supplied
the rear portion of the shoe last S, the mechanism will
to these various blocks by means of the heaters 362, 363
be set for operation upon a series of sizes. Thus, as
and 376.
Smaller shoe lasts are inserted into the mechanism (with
After a predetermined time during which suñicient heat
attendant shorter distance vertically between the sole and
the upper portion), the adjusting element 112 may be 30 will have -been supplied (a matter of a few seconds) the
`foot pedal 354 will be operated la second time. Upon
rotated to lengthen the distance between the plate 155 and
the second operation of the pedal 354, the valve- block
the shaft 95, that is, to lower the plate 155. The various
342 causes the shifting of the various line connections.
faces 131 through 136 of the rotatable element 130 are
The connection of the terminal 341 with the line 355 is
arranged in such pairs that the quick adjustments provided
by rotation of the element 13G` will adequately compen 35 broken so that no more compressed air passes from the
line 355 to the lines 335 and 338. Instead, the terminal
sate for the difference in the vertical distance between the
344 is connected to the air exhaust terminal 356. Since
sole and the top of a shoe last which results from dif
the terminal 344 also connects to the lines 335 and 339,
ferent shoe sizes.
whichrare the exhaust lines from the two air cylinders
It will be recognized that the plate 155 is pivotable
about the end of the shaft 151 so that if the upper rear 40 164 and 325, those cylinders will be exhausted of the
compressed air which originally caused the extension of
section of a shoe last is not perfectly horizontal, or if
their
respective cylinders 170 and 320. With the creation
this surface varies in its angle to the horizontal, the plate
of a vacuum within the cylinders 164 and 325 as is con
155 will pivot to rest as ñat as possible against the shoe
ventional in the art, the pistons 170 and 320 will be re
last.
tracted
within the cylinders 164 and 325, respectively.
The second adjustment which may be accomplished
with the machine before a series of operation is begun 45 (An appropriate means may be provided `for normally
lbiasing the pistons toward retracted position, or the valve
is the lateral pivoting of the heel block 305 forward or
342 might be constructed to provide positive air pressure
rearward of the mechanism by rotation of the bolt 310
from the line 355 to the terminal 344 when the foot pedal
by its handle 313. By this means, the block 3115 may be
is operated for a second time. As has been stated, the
set to a position immediately beneath the heel section of
a shoe last S. Unlike the holding `block 155, it is not 50 precise details of the cylinders 164 and 325 of the valve
342 are not features of the invention.) The ñrst to re
to be considered ordinarily necessary to adjust the heel
tract will be the piston 320 so that the heel ironing block
ironing block 305 for various shoe sizes inasmuch as that
305 will be released from the heel and the wiping mecha
block is long enough to perform the intended ironing
nism 191 will be pivoted away before the holding pad
function for a complete normal series of shoe lengths.
When the holding plate 155 and the heel ironing plate 55 191 releases the shoe last. As the piston 320 moves down
wardly, the central cam roller 269 engages the inner sur
335 have been adjusted `for the operation of the machine,
faces of the cam followers 258 causing the separation of
a shoe last S may be placed with the sole thereof upon
the blocks about their common pivot 190;
the block of the wiping mechanism 192. Such a shoe
Following the retraction of the piston 320 is the re
last will comprise a form, which is usually wooden, having 60 traction
of the piston 170 thereby releasing the shoe last
the upper leather portion U of a shoe wrapped around
and
placing
the mechanism in readiness for another shoe
it. The lower edges of the leather are to be folded and
last ironing operation. Of course, if the next shoe last is
ironed about the under surface of the shoe last.
of a different size but in the same series of heel size, the
When such a shoe last is manually placed and held
wheel 124 may be operated to provide quick adjustment
upon the wiping mechanism 192, the upper surface of the
rear section of the last will press against the holding plate 65 for the new shoe size as has been already described.
lt will be noted that the spring action and place separa
155, since that plate will have been set for such a purpose.
tion of each pivotable section of the wiping mechanism
The shoe last may then be grasped by the operator upon
192 provides extreme flexibility for the various shoe sizes.
either side thereof to steady it. (it will be appreciated
that the pedal operation of the machine permits the free 70 As the shoe size becomes shorter the sole of the Shoe will
be placed further forward upon this wiping mechanism
use of both hands by the operator to steady the shoe last
191. The separation of the blocks into two sections 220
being ironed.)
and 221 for each pivoting section permits greater con
With the shoe last S in place, the pedal 354 will be
initially operated.
Upon operation of that pedal, the
valve 342 causes compressed air from the line 355 con
formity of the wiping mechanism to the sloping under
surface of the sole of the shoe last.
Various changes and modifications may be made within
spaanse
11
this invention as will be apparent to those skilled in
art. Such changes-and modifications are within the scope
and teaching of this invention as defined by the claims
appended hereto.
What is claimed is:
1. In a device of the type described, a heated shoe sole
Cl means, a movable cam assembly for moving the cam
follower arms toward and away from one another to move
the block means toward and away from one another, and
wiping mechanism; a heated heel ironing mechanism;
adjustable heel holding means; movable sole holding
means controlled by the movement of the heel ironing
member for moving the cam assembly.
10. The lmachine of claim 9 wherein the last named
means; and timed actuating means for operating said
wiping mechanism, said ironing mechanism and said
means comprises an arm attached to the cam assembly,
sole holding means in a predetermined sequence where
by to perform an ironing and a wiping operation upon
the sole while holding said sole in position for same.
2. The device of claim 1 wherein the timed actuating
the heel ironing member being attached to a vertically
movable rod assembly, and the arm being attached to
the rod assembly.
11. The machine of claim 1G wherein the rod assem
means includes a movable shaft and a power supply for
bly includes a pivotal rod connected to a vertically mov
moving the movable shaft, means for connecting said heel
able bracket, the heel ironing lmember being attached to
ironing mechanism and said sole wiping mechanism to
the shaft whereby the respective ironing and wiping opera
tions are accomplished substantially simultaneously.
the rod, the arm being attached to the bracket, and means
for pivoting the rod about the bracket to adjust the posi
tion of the heel ironing member relative to the wiping
3. The device of claim 1 including means for adjusting
the distance relationship between the heel ironing mecha
nism and the sole wiping mechanism.
assembly.
»
l
12. A machine for ironing leather about a shoe last
comprising a sole wiping assemblyg’a heel ironing plate,
and plate means above the heel ironing plate for pressing
4. The ldevice of Vclaim 1 wherein the heel holding
means is adjustable fordifferent heel sizes through a tirst
against the upper surface of the rear portion of the last
to clamp the last between the plate means and the heel
mechanism and is 'adjustable for different shoe sizes ,
through a second mechanism.
12
'ij/comprises a pair of block means, each of the block means
being' pivotally attached to the frame, the block means
being pivotal toward and away from one another, a cam
follower arm depending downward from each of the block
Y
ironing plate, the plate means being supported by a
substantially vertical rod', cam means for`providing in
cremental vertical adjustment of the rod, and screw
5. The device of claim 4 wherein the second mecha
nism 4includes cam means for adjusting the vertical posi
tion of the heel holding means.4 .
.
means for vertically adjusting the position of the cam
6. The device of claim 2 whereinj the power supply for 30
means.
the mechanism comprises a pedal actuated `valve means
- 13. The machine of claim 12 wherein the cam means
interconnecting with a pneumatic system.
comprises a rotatable wheel having a plurality of planar
7. The device of claim 6 wherein separatepiston and
faces consecutively rotatable against an end of the rod,
cylinder means are provided for operating the ironing and
each-face of the wheel being at a different distance from
35
, wiping, mechanism on the `one hand and the holding
the axis of rotation of the Wheel according to the diiîerent
mechanism on theother'.
.
8. A -machine for ironing leather'about a shoe last
comprising a frame, a plate supported by the ¿frame 'for '
abutting the upper rearward portion of the last, a shoe
wiping assembly supported lby the frame `for ironing the
under surface of the forward part of the last, a resilient
pad movable between a retracted position and anl opera
tive position for pressing the forward Aportion of the
last against the wiping assembly, 'a heel ironingr member
below the plate and movable between a retracted position
and an operative position `’for ironing the heel portion 'of
the last, means for moving the pad to its operative lposi
tion and means for moving the heel ironing member1 to
its operative position simultaneously with the pad moving
means, the distance between the retracted and operative
positions of the pad being less than the distance between
the retracted and operative positions of the heel ironing
`member so that the pad will press against the last before
40
,sizes of shoe lasts toy be operated upon by the machine, the
plate means being supported at the other end of the-rod,
and¿rneans'for biasing the rod against the wheel.
14.l >The machine of ,claim `13 wherein the wheel has
axial projectionson opposite sides thereof and the machine
includes a pair ofy spaced plates with vertical slots there
in,`the wheel being positioned between the plates with
the projections extending into the slots to provide vertical
movement 4of the wheel and the screw means are posi
tioned above the wheel for adjusting thervertical position
of the wheel.
References Cited in the file of this >patent
UNITED STATES PATENTS
1,160,967
Asmus ____ __'____' ____ __ Nov. 16, 1915
1,694,450
1,767,106
1,951,373
2,075,908
Ricks et al. __________ __ Dec. 11,
Winkler et al. _________ _, June 24,
Pyrn ________________ _.. Mar. 20,
Pym _________________ __ Apr. 6,
2,172,372
Firm ________________ .__ Sept. 12, 1939
the last is contacted by the heel ironing member and
will hold the last in place against the wiping assembly 55
2,095,245
while the heel ironing member irons the heel portion of
the shoe.
»
9, The machine of claim 8 wherein the wiping assembly
1928
1930
1934
1937
Finn ____________ _.;____ Oct. 12, 1937
Документ
Категория
Без категории
Просмотров
0
Размер файла
1 339 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа