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Патент USA US2117732

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May 17, 1938.
w. KURTING
2,117,732
METHOD OF AND DEVICE FOR SHAPING SHOE UPPERS
Filed July 23, 1937
FIG. 2.
6
2 Sheets-Sheet 1
F163.
May 17, 1938.
2,117,732
w. KGRTING
METHOD OF AND DEVICE FOR SHAPING SHOE UP ERS
Filed July 25, 1937
2 Sheets-Sheet 2
jnvé n 210 r.‘
2,117,732
Patented May 17, 1938
UNITED STATES PATENT OFFICE
2,117,732
METHOD OF‘ AND DEVICE FOR SHAPING
'
SHOE UPPERS
Walter Kiirting, Landsberg (War-the) Germany,
assignor to Horst Gemeinert, Seitersdorf, near
Sorau, Germany
Application July 23, 1937, Serial No. 155,280
,
In Germany June 15, 1936
3 Claims.
This invention relates to a method of and de»
vice for shaping shoe uppers, its object being to
produce the shaped upper from a blank which,
with the exception of a small marginal excess of
5 material at the toe'portion, has the exact size
of the ?nished article.
With this object in view the invention consists
essentially in ?rmly clamping the sides of the
exactly dimensioned portion of such blank so
10 as to prevent deformation thereof, clamping the
margin of the toe portion yieldingly while said
latter portion is being pressed into the required
shape, and subsequently trimming said toe por
tion to size.
15
The device employed for carrying out this
method comprises a female die to which a clamp
ing plate is hinged for securing the blank to the
die during ‘the shaping process, the yielding
clamping effect on the margin of the toe portion
20 being obtained by means of a frame which is
hinged to said plate and provided with a handle
for manual operation.
Fig. l of the accompanying drawings represents
a plan view of the female ‘die and its clamping
25 elements together with the shaped upper,
Fig. 2 is a longitudinal section thereof,
Fig. 3 is a section of the male die,
Fig. 4 is a sectional view showing the upper
?tted in a template for trimming the toe portion,
Fig. 5 is a side view of the shaped upper,
30
Fig. 6 is a plan view of the blank,
Fig. '7 is a plan view of the template,
Fig. 8 is a side view of the clamping member
for the template,
36
Fig. 9 is a plan view of said member,
Fig. 10 is a sectional view of the complete shap
ing press, and
Fig. 11 is a view showing the press elements in
their operative positions.
For shaping the upper a female die a is used
which is hollowed out according to the desired
shape of the upper. The blank d is supported
on the sides of the die and on a bridge i beyond
which the toe portion of the blank is depressed
45 by the male die 6 (Fig. 3) to form the dome g.
A clamping plate b is provided which is con
nected by hinges m to the rear portion of the
die and adapted to clamp the sides of the blank
to the die so as to prevent deformation thereof
50 while the dome g is being formed. The plate b,
which is slotted to admit the male die, does not
extend over the toe portion of the blank which is
held down yieldingly by a frame 0 adapted to
engage the margin ,1‘ of said portion. The frame
0 is hinged at'n to strips p which are secured
(Cl. 12-51)
by screws 0 or the like to the plate 2). A handle
it is connected to the frame 0 for the manual
operation of the latter. The male die e is ?tted
with an electric heating element I so that it can
be heated for facilitating the shaping process.
Except for a marginal excess of material at the
toe portion of the blank, the latter is cut to the
exact size of the required upper. The exactly
dimensioned portion of the blank is maintained
by the clamping plate I) in its original size dur ll
ing the shaping operation, while the toe portion
of the blank is given an opportunity to slip from
under the'clamping frame 0 as the dome g is
being formed.
The extent of the slip is regu
lated manually by means of the handle is ac
cording to feel and according to the nature of
the material. Any excess of material left at th\
edge I after the shaping of the upper, is subse
quently trimmed oil". The trimming of the edge 1‘
is done by the aid of a template h which is pro
vided with, an aperture q1 for the reception of
the dome g. The upper is positioned in the
template by means of a clamping member com
prising a block q which is adapted to enter the
dome g, and which has a tail piece r ?tted with a
lug s adapted to enter a slot in a tongue formed
on the template, as shown in Fig. 'l.
A suitable press for use in shaping the upper,
is illustrated in Figs. 10 and 11. This press com
prises a stand I to which the die a is secured. 30
The die e is connected by means of a spring to
a thrust bearing 8 to a screw spindle 4. The
latter engages in a bridge 3 which is carried on
the stand I by means of two supporting rods 2.
A guide 'arm secured to the die e engages a
bracket ID on the stand and prevents the die
from rotating together with the screw spindle.
The clamping plate b is connected by a rod or
rods 5 to a treadle 6 whereby it is operated in
opposition to a spring H. A slotted link 1 forms
a connection between the plate b and the die e
and causes the plate to occupy a tilted position,
as shown in Fig. 10 with raised die. A catch
9 on the die 2 is adapted to engage a bracket l2
on the bridge 3 for maintaining the die nor
mally in its raised position.
The operation is as follows:
Fig. 10 shows the elements in position to re~
ceive‘the blank (2 which is placed in position on
the die a. Thereupon the catch 9 is released
from the bracket l2, and the screw spindle 4 is
operated so as to lower the die e, the treadle 6
being simultaneously operated in opposition to
the spring ll so as to superimpose the clamping
plate b on the blank. In the further movement 55
2
2,117,782
of the spindle 4, the die e is applied to the blank
for shaping the latter. While this is done the
treadle is operated for clamping the sides of the
'blank to the die, and the frame 0 is operated
feelingly by means of the handle it for regulat
ing the slip of the blank under the frame 0.
Subsequently the trimming of the toe portion
is e?ected by means of the template as already
described.
I claim:
10
1. A method of shaping shoe uppers which
consists in cutting a blank having an excess of
material at the toe portion but otherwise of the
exact size of the upper, clamping the sides of the
15
20
exactly dimensioned portion ?rmly to prevent
deformation thereof, clamping the margin of the
toe portion yieldingly, pressing said toe portion
into shape, and trimming the toe portion to size
after the shaping.
die and operative to clamp the rear portion of
a blank to the die, a clamping frame hinged to
said plate and operated to clamp the margin of
the toe portion of the blank to the die, a male
die adapted to operate through said frame and 5
through a slot in the plate, means for supporting
the dies, means for applying mechanical pressure
to the plate and to the male die, and a handle
on the frame for applying manual pressure to the
latter.
10
3. A machine as claimed in claim 2 wherein
the means for applying pressure to- the male die
comprises a screw spindle and wherein the means
for applying pressure to the clamping plate com
prises a spring-controlled treadle and rods .con 15
necting said treadle to the plate, and a sliding
link connecting the plate with the male die and
operative to maintain the plate and frame in
a tilted position with raised die.
2. A device for shaping a shoe upper compris
ing a female die, a clamping plate hinged to the
WALTER KC'JRTING.
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