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Патент USA US2124546

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July 26, 1938.
M. cuozzo
2,124,546
HEEL SEAT FORMING'MACHINE
Original Filed May 22, 1936-
_2 Sheets-Sheet l
July 26, 1938.
f 2,124,546
M. cuozzo
HEEL SEAT FORMING MACHINE
Original Filed May 22, 1936
2 Sheets-Sheet 2
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2,124,546
Patented July 26, 1938
UNITED STATES
.
PATENT OFFICE ‘
2,124,546
HEEL-SEAT FORMING MACHINE
Michele Cuozzo, Lynn, Mass, assignorto United
Shoe Machinery Corporation, Paterson, N. J., a
corporation of New Jersey
Original application May 22, 1936, Serial. No.
81,306. Divided and this application Decem
ber 31, 1936, Serial No. 118,625
6. Claims;
(01. 12-315)
This invention relates to machines for use in
the manufacture of shoes and is illustrated as
embodied in a machine for shaping the heel seats
of shoes for the reception of heels.
As disclosed in an application for United
States Letters Patent, Serial No. 81,306, ?led
May 22, 1936, in my name, in order to improve
the joints between the counter portions of shoes
and heels attached to the shoes, I propose to
10 wipe limited portions of the opposite sides of the
counter portion of the shoe toward the heel seat
of the shoe, while the heel seat is being shaped
'
.'
-
'
5;;
ing face of which has been coated with thermo
plastic adhesive; and f
_
,
-
-
Fig.7 7,is .a side view of the above machine the
mold‘ of which has been replaced by a clamping
unit for accommodating a heel. which molds the “5
heel seat of ' the shoe during its attachment to
the shoe.
7
1
As stated in the above-mentioned application
for United States Letters Patent Serial No.
81,306, the. front and rear ends 20, .2, respec- l0
tively (Fig. 1), of the overlasted counter portion
of a woman’s shoe are commonly higher than the
central side portions 24 of the overlasted counter
heel during its attachment to the shoe, and to portion, thereby causing the heel of the ?nished .,
shoe frequently to bridge the side margins of the 15
maintain said opposite sides of the counter por
tion of the shoe in wiped relation with the mold heel seat. In such a construction, gaps, which
or heel while the mold or. heel is‘held under’ detract from the appearance of the finished shoe
heavy molding pressure againstthe heel seat of are formed between the sides of the counter-por
tion of the shoe and the rim of.the heel. ,The , _
the shoe.
defect has been largely overcome by prac- '2'0
20v In accordance with ,a feature of the present" above
ticing the method disclosed and'claimed in the
invention, the machine illustrated in this appli
above application.
.
,
cation, which is a division of the above-‘men
In order to facilitate‘ practicing the above im
tioned application Serial No.‘81,306, comprises a
pair of wipers for engaging limited areas of the heel-seat
proved method,
moldingI have
machine
provided
(Fig; 1)
an comprising32'5
illustrated
'25 opposite sides of the counter portion of a shoe
upon. a form, {and an abutment independent of a pair of wipers or‘supports. 26 which are con
by the use of a heel-seat forming mold or by a
structed and arranged to be engaged by the op
able the shoe to be moved with relation to said posite sides of the counter portion of a shoe 28
, wipers by pressure applied against the [heel seat upon ‘a. last 30, and to wipe limited portions of '
'30 of the shoe until limited by the engagement of the‘si'd'es of “the counter portion toward the heel
said form with said abutment therebyicausing seat of the shoe while a heel-seat forming mold
32 is forced downward against the heel seat of
limited portions of the sides of the counter por
tion of the shoe to be wiped toward the heel seat the shoe. The illustrated mold 32 is heatedby
an electric coil 33 (Fig. 3) receiving current
as the shoe is moved toward the abutment.
through
leads 34. The operative face 36 (Fig.
The various features of the invention will be
understood and appreciated from the following 1) of the mold 32 has a shape substantially the
detailed description read in connection with the same as that'of; the attaching face of a heel 40
(Fig. 6) which is to be attached to the shoe.
accompanying drawings, in which
1
.
The wipers 23 comprise work-engaging pads
Fig. 1 is a side View, partly broken away, of the
illustrated heel-seat molding machine in which 42 which are made of leather,.rubber or other
the wipers, said abutment being arranged "to en~
a shoe mounted upon a last is positioned, pre
paratory to operating upon the shoe;
>
Fig. 2 shows inperspective a portion of- the
4
machine and the shoe of Fig. 1- as viewed in the
direction indicated by arrows II—II of Fig. 1;
Fig. 3 is a section on line III—III of Fig. 1 after
the last‘ upon which the shoe is mounted has
been forced against the abutment of the machine.
30
.
M
35
40
suitable material, and are carried by arms 44
'
journaled upon screws 46 in threadedrelation
with the machine frame.
The arms 44 are
mounted for equalv and opposite movement with _ .
relation to each other with the provision ofin- "'45
termeshing gear segments 48 and are normally
urged toward each other by a spring50 thelends
of which engage within, recesses '52 formed in
depending extensions .54 of the arms 44,. :Move- \
0 under pressure of alnold against the heel seat of . ment of thewipers 26 toward each otherunder “50
the shoe;
Fig. 4 is a perspective ‘view showing the molded
heel seat of the shoe illustrated in‘Fig; 3;‘
Fig. 5 is a section on line V--V of Fig.‘ 4;
Fig. 6 is a perspective view of a heel the attach
the action of the spring 50 is limited by the en
gagement‘of'the depending extension“ of one
of the arms 44" with a nut '56 carried by a bolt
58 hinged to the depending portion of the other A '
arm.
The nut‘ 56 may be adjusted into'di?erent 5‘5
2,124,546
positions along the threaded portion of the bolt
58 in order initially to position ‘the work-engag
ing pads 42 of the wipers in accordance with the
width of the shoe.
'
When the shoe is placed upon the wipers 26
with its rear end in engagement with an adjust
able back gage 60 (Fig. 1) vthe last 30 is spaced
from'an abutment 62 which may be secured to
the machine frame in different vertical positions
'10 through the provision of screws 64 passing
through an elongated slot 66 of the abutment
62 and in threaded relation with the machine
The heel-seat molding machine (Fig. 1) may
be readily converted into a heel-attaching ma
chine (Fig. 7) in which the heel 40 (Fig. 6), dur-'
ing its attachment to the shoe, conforms the
heel seat of the shoe to the desired shape and
thus operates as a mold. The heel-attaching
machine comprises a slide H0 which corresponds
to the shank portion 82 of the mold 32-(Fig. 1)
and is provided with a depending portion H2 to
which back and tread blocks H4, H6 are piv
10
otally secured. The back and tread blocks H4,
H6 are constructed and arranged to engage the
frame. The rearface of the abutment 62 and
rear and tread faces respectively of the heel in
the front face of the machine frame are ser-. order effectively to force the heel under heavy
15 rated, as indicated by reference numeral 68 (Fig. . molding pressure against the heel seat of the
1), in order to insure that the abutment shall not shoe.
»
be moved when downward conforming pressure
In operating the heel-attaching machine the
of the mold 32against the heel seat of the shoe operator, after placing hot thermoplastic ad~
28 causes the last 30 to be forced againstthe hesivebeneath the tab 12 of the sole as above
20
» described, positions the heel 40 in the machine
v abutment
It'will be
62. noted that in theillustrated
‘
" ~ con
‘
with its tread and back faces in engagement with
struction the ?tted heel seatof the shoe is built the respective blocks H6, H4. The treadle is
up by the use of a quantity. of thermoplastic ad
then depressed causing the heel to operate in
he'sive 10 (Fig. 2) which, when in a softened con
the same manner as the mold 32 operates against
25 dition, isplaced beneath the tab '12 of the sole the heel seat, thereby conforming the heel seat
14 of the shoe. The tab 12 is provided with an ' to the proper shape. Molding and'attaching
elongated slot 16 through which flows a portion pressure of the heel against the heel seat of the
of the thermoplastic adhesive 10 not required to shoe is maintained until the thermoplastic ad
?ll the recess 18 formed by the insole and the hesive has set and the heel seat has been per
30 overlasted margin of the shoe upper, as the mold manently conformed to the desired shape. As
32 is forced against the heel seat. The thermo
the heel is forced against the heel seat of the
plastic adhesive 10 which passes through the slot shoe wipers 26a operate upon the sides of the
16 is spread over the tab 12 during the heel-seat counter portion of the shoe, as above described
molding operation to form a heel-attaching face in connection with the molding machine, thereby
3,5 80 (Fig. 4) which is substantially complemental insuring that the sides of the counter portion of
to the attaching face 38 of the heel 40 to be
to
attached to the shoe. Before attaching the heel
to the shoe the attaching face of the heel is pref
erably coated with thermoplastic adhesive and
is heated as disclosed in the above-mentioned
application for United States Letters Patent
Serial No. 81,306.
7
As the. mold 32 is moved down against the
supporting pressure of the wipers 26, limited
portions of the sides of the counter portion of the
shoe are forced by the wipers toward the mold.
When- the last 30 upon which the shoe is
mounted has been forced against the abutment
.62 continued downward movement of the mold
50 32 causes heavy molding pressure to be exerted
against the heel seat of the shoe.
‘
The shank 82 (Fig. 1) of the mold 32 slides in
a vertical guideway 84 of the machine frame and
is provided with a rack'86 meshing with a gear
segment 88 which is keyed to a shaft 90 jour
naled in the machine frame. The mold 32 is
normally held in a raised position by a spring
92 having its upper and lower ends secured re
spectively to a rearward extension of the gear
60 segment 88 and to the machine frame. Secured
to the shaft 90 by a set screw 94 is an arm 96
.65
15'
20
25
‘
30
35
the shoe be forced into engagement with the
rim of ‘the attaching face of the heel 46. Since
the back gage 60a, the abutment 62a, and mech
anism for operating the slide H0 and the wipers
26a, are substantially identical with correspond 470
ing portions of the molding machine illustrated
in Fig. 1, it will not be necessary to describe the
construction and operation of these members in
detail. ‘ Accordingly, the parts of the heel-at
taching machine (Fig. 7) which are substantially 45
identical with corresponding ‘parts of, the heel
seat molding machine (Fig. l), have beengiven,
respectively, the same numbers each with an
exponent a.
I
Having described the invention, what I claim 60
as new and desire to securelby Letters Patent of
the United States is:
1. In a machine in which pressure is applied
against the heel seat of a shoe mounted upon a
form to mold said heel seat, a pair of wipers con— 55
structed and arranged to be engaged by limited
areas of opposite sides of the counter portion
of the shoe, and an abutment independent of said
wipers, said abutment being arranged to enable
the shoe to be moved with relation to said wipers 60
by pressure applied againstthe heel seat of the
shoe until limited by the engagement of said‘
form with said abutment thereby causing limited
portions of the sides of the counter portion of the
which is linked through a rod 98 to a treadle l0!)
hinged at its rear end to a ?xed block. I02. De
pression of the treadle vH10 causes the mold 32
to be moved down, the treadle being retained inv
its lowered position by a pawl I04 carried by the
shoe is'moved toward the abutment. ,
treadle‘and normally engaging teeth 106 of the
block I02. The ‘mold 32 is held under consider-e
against the heel seat of 'a shoe mounted upon a -, 2‘
ablepressure against the heel seat for a short
7.0 period during which the thermoplastic adhesive
sets and the shape imparted to the heel seat be
comes permanent. The operatorrthen withdraws
the pawl £04 from engagement with teeth I06 to
enable the treadle I00 to be raised under the
1,75. action of spring 92, by depressing the treadle I98.
shoe to be wipedtoward the heel seat as the 65
-2. In a. machine in which pressure is'applied
form to mold said heel seat, apair of pivotally
mounted wipers constructed and arranged to '70
engage limited areas of ‘opposite sides of the
counter portion of the shoe, yieldable means for
urging the wipers toward each other, and an
abutment into engagement with which the form
upon which the shoe is mounted is forced under 75.
e
2,124,546
pressure applied against the heel seat of the shoe,
said wipers being constructed and arranged to
force limited portions of the sides of the counter
portion of the shoe toward said heel seat as the
shoe and the form upon which it is mounted
are moved toward said abutment.
3. A heel-seat molding machine having, in
combination, a pair of wipers mounted for yield
ing movement away from each other and con
3
of the shoe to a predetermined shape upon the
application of heavy molding pressure against
the heel seat of the shoe supported through the
last by said abutment.
5. A heel-seat molding machine having, in
combination, a pair of wipers mounted for yield;
ing movement away from each other, said wipers
being constructed and arranged to engage limited
areas of the respective sides of the counter por
10 structed and arranged to engage limited areas of
tion of a shoe mounted upon a last, an abutment 10
the respective sides of the counter portion of a
shoe mounted upon a form, an abutment, heel
seat molding means, and mechanism for forc
ing said means against the heel seat of the shoe
spaced from the last upon which the shoe is
mounted, a mold, means for heating the mold,
and means for forcing the mold against the heel
seat of the shoe ?rst to cause the wipers to force
the limited portions of the respective sides of the 15
counter portion of the shoe toward the mold and
then to cause the last to be forced with consider
?rst to cause the form upon which the shoe is
mounted to be moved into engagement with the
abutment during which movement the wipers
force portions of the sides of the counter por
tion of the shoe toward said means, and then to
cause the heel seat to be conformed to a prede
termined shape under heavy molding pressure
while the wipers maintain the sides of the counter
portion of the shoe in forced engagement with
said means.
'
4. A heel-seat molding machine having, in
combination, a pair of wipers constructed and ar
ranged to engage limited areas of the respective
sides of the counter portion of a shoe mounted
upon a last, a mold mounted for movement to
ward and away from the heel-seat portion of
said shoe, an abutment spaced from the last upon
which said shoe is mounted, and means for forc
ing the mold against the heel seat of the shoe,
said wipers being yieldable under pressure of
35 the shoe as said last is moved toward and into
engagement with said abutment and being con
structed and arranged upon movement of the
shoe under pressure of the mold to force limited
areas of the sides of the counter portion of the
40 shoe toward said mold, said mold being con
structed and arranged to conform the heel seat
able pressure against said abutment while said
wipers continue to force said portions toward the
20
mold.
6. A heel-seat molding and heel~attaching ma
chine having, in combination, a pair of wipers
constructed and arranged to engage the respec
tive sides of the counter portion of a shoe mount
ed upon a last, an abutment spaced from the last 25
of the shoe in engagement with said wipers, and
means for forcing a heel against the heel seat of
the shoe after adhesive has been interposed be
tween the heel and the heel seat, said wipers
being yieldable under pressure of the shoe to 30
enable the last upon which the shoe is mounted
to be vforced against the abutment with con
siderable pressure, said wipers being constructed
and arranged to force limited portions of the sides
of the counter portion of the shoe with consider 35
able pressure against the rim of the heel while
the shoe is being moved toward said abutment
and while the heel is being forced against the
heel seat of the shoe under molding and attaching
pressure.
MICHELE CUOZZO.
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