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Патент USA US2137459

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‘Nov. 22; 1938.
‘A. E. PIEKENBROCK‘
2,137,459
SHOE OONSTRUCT ION
Filed fab‘. 35, 1937
s Shéets-Sheet 1
1/2/0057 Z: Ewe/mm”;
M RQQW
Nov. 22, 1938..
A. E. PIEKENBROCK
2,137,459
SHOE CONSTRUGT ION
Filed Feb. 25, 1937 '
. 3 Sheds-Sheet 2 ,
WW
Nov. 22, ‘1938.. -‘
2,137,459
' A. E. PIEKENBROCK'
SHOE CONSTRUCTION
Filed Feb. 25, 1957
'
3 Sheets-Sheet 3
Patented Nov. 22, 1938
2,137,459
UNITED STATES PATENT , OFFICE
2.137455%
’
'
‘
SHOE‘ CONSTRUCTION .
Anthony E. Piekenbrock, Dubuquc, Iowa, assignor
to Albert F. P??’ner, Chicago, Ill.
Application February '25, 1937, Serial No. 127,749
7 Claims. (CI. 36-76)
The present invention relates to shoe construc
tions and particularly to improvements in longi
tudinal arch supports.
This is a continuation-in-part of my co-pend
ing application, Serial Number 90,764., ?led July
15, 1936.
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‘ It is one of the objects of the invention to pro-‘
duce a shoe which will support and strengthen
the longitudinal and transverse arches of the
foot and prevent the same from flattening or
sagging.
'
Another object resides in providing a shoe with
a supporting structure which is built into the shoe
between the inner and outer soles and prevents
the shoe and particularly its shank portion from
being deformed under the weight of the wearer
and the pounding, bending, grinding; and tear
ing stresses to which a shoe is exposed when in
use.
20
supports the insole, the insole lips, and the por
tions of‘the lining, the counter, and the upper
which are stitched to the insole lips by means
of the inseam, and which particularly protects
the inseam itself from breaking.
Another object consists in molding the outer
solelso as to follow the lower contours of the
insert, and to ?t snugly over the same and con
ceal the same.
i
The invention includes still another object
which resides in shaping and dimensioning the
insert and‘ the shank portion of the outer sole
so that the arch supporting portion of said outer
sole is only partly in contact with the ground
although it’ supports the entire shank portion 15
extending from a line adjacent and toward the
rear of the ball portion toward the forward edge
of the heel portion.
‘
A further‘ object resides in combining an arch
supporting insert of the type described with a 20
steel insert which extends a certain distance
into the heel portion of the shoe and is secured
i
It is another object to enlarge the normal sup
porting surface of the shoe which is in contact
with the ground and to maintain the said sup
porting surface at an even level with the heel of . intermediate the outer and inner soles thereof
the shoe.
for increasing the stabilityv of the supporting
‘
A further object consists in providing a shoe
with a substantially incompressible'built-in arch
support. Still another object resides ‘in con
structing a shoe in which the toes of the foot
have the tendency to lie parallel to the ground
and at a substantially even level with the ball
' ‘portion‘thereof when the wearer is in standing
structure.
‘
V
Still further objects reside in theparticular
construction of- the‘ arch-supporting insert,.1"ts
particular shape and its particular positioning
and securement between the outer and inner soles.
These and. other objects will be described more 30
in detail in the following disclosure and be shown
position.
in the accompanying ‘drawings in which: -
The invention has for another object to‘provide
a shoe with an insole which rests evenly upon the
in accordance with the invention.
Fig. 1 shows a side view of a shoe constructed
sole of the foot and'cooperates with an arch
supporting insert to counteract the normal tend
ency of the toe portion of the shoe to bend up
Fig. 1.
wardly.
outer sole removed.
Still another object is to construct a shoe in
which the lower surface of the shank portion
Fig. 4 is across-section along line 4-4 of Fig. 2.
Fig. 5 is a bottom .view‘ similar to Fig. 3 but
Without‘ the supporting insert.
Fig. 6 is an enlarged rear sectional view through
the shank along line 6-6 of Fig. 4.
Fig. '7 is a view similar _to that of Fig. 6, but
Fig. 2 is a bottom view of the shoe shown in 35
Fig. 3 is abottom View of the shoe with the
extends at an even level with the ball portion of
the outer sole and the tread of the heel and to a
point approximately half way between the ball
and the forward edge of the heel.
‘
25
r
A further object is to produce a shoe with a
downward projection at the shank portion which
is so shaped and constructed as to be unnotice
able when the wearer rests his feet on the ground.
'
along line 'l--'l of Fig. 4. '
'
‘ Fig. 8 is a front view of the insert.
inner soles of a shoe with recesses and to insert
an arch support therein so as to be ?rmly and
9 is a side view thereof, and
Fig. 10 is a top view of the insert.
Fig. 11 is a section along line ll-|l of Fig. 9.
‘Fig. 12 is a section along line 12-42 of Fig. 9. 5
Referring to the drawings in detail, the ref
erence character 2 designates, the upper of the
immovably enclosed by said soles.
shoe, 4 is the counter, 6 isthe lining of the shoe,
It constitutes another object of the invention
50 to provide the shank portion of the outer and
,
A still further object resides in providing a
,shoe with a shank support which reinforces and
and 8 is the welting._ These elements are of a
known construction and do not need to be fur 65
2
4
2,137,459
ther described. The insole I0 is provided with
a sewing lip I2 which is formed of two halves
which are out out from the insole I8, bent at
approximately right angles to the body of the
insole and secured together. The upper 2,
counter 4, lining 6, and welting 8 are secured to
the sewing lip I2 by means of the inseam I6. An
insert I8 of substantially rigid, incompressible,
solid material such as a block of leather,_highly
compressed cork, hard rubber, or the like, is se
cured to the insole I0 within thechannelformedby
the outer and inner portions of lip I2 so as to be
snugly surrounded thereby. Insert I8, or at least
its upper surface 28, is designed to extend from
15 a line 22 slightly rearwardly of a line drawn be-,
tween the points on which the outside and inside
balls of the foot rest to a line 24 drawn near the
forward edge of the heel 26 but spaced forwardly
therefrom.
The front and rear channel por
20 tions of insole I0 intermediate lip I2 and adja
cent the forward and rear edges of insert I8 are
each ?lled out with a layer of ?lling material 28.
The top layer of insert;- I8 isthusclosely sur
rounded at all ,sides and built into insole II! to
25
which it may be secured 'by' cement, along its
entire upper surface to prevent any movement
thereof within recess 30 formed by lip I-2 and fill
ing material 28.
_
V
g
The upper surface 28 of insert I8 is shaped in
30. conformity with the longitudinal and transverse
arches of the foot of :the-wearen. It is therefore
of sinusoidal shape in longitudinal direction, as
shown in Figs. 4 and 9 of the drawings, and of
concave shape in transverse direction as shown
35 in Figs. 6, 8, and 11. The‘ forward portion of this
transverse arch near the ball portion 32 of the
shoe is curved only sllghtly-and substantially
symmetrically, while towardthe rear the crest
of the curve is located near the‘ outside of the
40 shoe, as indicated by numeral 34, in conformity
with the shape of the transversearchof the foot.
Insert I8 is designed to be ,of such a height that
the lower surface 36 thereof ls-absolutely even
with the lower surface of’ the ball portion 32 of the
insole including ?ller 28. The sides 38 of, the in
sert are ?aring outwardly and upwardly from
lower surface “which extendsvfrom itsfront edge
22 to a line 40, drawn at approximately half the
distance from the line 22 to‘ the forward edge of
the heel 25. The rear side, 42 of theinsert may be
of a ?aring shapesimilar tosides- 38 or inclined
relative to surface 36 toward rear edge 24-.‘ View
lng insert I8 from the rear, ‘for example. as in
Figs. 6, l1, and 12, it will be seen‘ that the same
assumes substantially a shapesimilar to a key
stone.
.
.
It is a special feature of the present invention to
provide the upper surface 20 of the insert ad
jacent its outer edges with‘ grooves or cut-away
portions 44. The inner edges 46 of these grooves
60
are spaced a distance from each other which is
equal to the distance between the inner sides of
the outer and inner parts. of lip I2,- and grooves
44 are of a depth equal'to the height of lip I2
from the lower surface ,of insole III. Thus‘, insert
65
I8 can be inserted between the outer and inner
parts of lip. I2 and is gripped tightly thereby.
The grooved portions 44 are of such avwidth that
the outer edges 48 of the insert overlap the upper
70 edge of lip I2 and the inner‘stitched portions 21,
41, and 81 of the upper, the countenand the
lining, and possibly ‘also the inner stitched portion
81 of the welting. By this construction, the insert
I8 supports and partially encloses lip I2 and
76 stitched portions 21, 41,161, and possibly also 81,
and thereby supports inseam I6 and protects the
same from braking.
When the wearer of shoes
in which the present invention is incorporated
is in standing position, inseam I6 and stitched
portions 21, 41, 61, and 81 are supported solidly on
the ground and the weight of the wearer tends
to increase the vise-like action of the outer por
tions 50 of the insole and the projecting portions
52 of the insert so that the inseam I6 and the
stitched portions 21, 41, 61, and 81 are securely 10
gripped at least on three sides.
Inasmuch as
welting 8 is usually of relatively strong material,
the same constitutes a fourth retaining wall so
that the inseam and the stitched portions are
encased tightly on all sides.
15
. The insole I0 is shaped primarily in conformity
with the longitudinal arch of the foot of the wear
er, and to some extent also in conformity with
the transverse metartarsal arch. The shape of
the shank portion of the insole is identical with 20
that of the upper surface 20 of insert I8, and the
convex portion 54 of the insole rests ?rmly and
evenly against the arch portion of the sole.
The outer sole 56 is molded so as to provide a
cavity .58 for insert I8 and to fit snugly over the
insole I8 including filler 28, and the downwardly
projecting insert I8, and extends from the front
of the shoe to the rear end thereof. The outer
sole 58 is securely attached to the inner sole I8,
including ?ller 28, and to the insert I8, so that 30
the latter forms with insole l0 and outer sole
58 a rigid entity. Aheel 26 is attached to the heel
portion of the outer sole 56 and is designed to be
of such a height that the tread surface of the
outer sole extends from the rear edge 62 of the 35
supporting projection 64 at least to the ball por
tion of the outer sole.
Since the outer sole is molded to ?t closely
under the insole III and insert I8, the lateral sides
66 and the rear side 68 of the shank portion of >
the outer sole are likewise inclined upwardly from
the tread surface of the projection 64 and ?aring
outwardly toward the welting 8 and rearwardly
toward the upper front edge ‘ID of heel 26.
Through this grading or ?aring of the lateral and .
rear sides 66 and 68, the arch~supporting pro
jection B4 is rendered inconspicuous to such an
extent that the difference between a shoe con
structed according to the present invention and
an ordinary shoe can hardly be noticed from an
angle of less than 40° from the vertical, and then
only if the onlooker is aware of the existence of
the support.
For increasing the stability of the construction,
and for reinforcing the relatively weak portion of
55
the soles intermediate insert I8 and the forward
edge of heel 26, the length of insert I8 may be
extended by combining the same with a steel
insert ‘I2 which extends a certain distance into
the heel portion of the shoe. For securing this
auxiliary insert ‘I2 to the main insert I8 without
increasing the thickness of insert I8, the latter
is provided with a recessed portion ‘I4 at the up
per surface 20 thereof, which has a depth equal
to the thickness of insert 12.
’
Auxiliary insert ‘I2 is shaped so as to form a
continuity. of the upper surface 28 of insert I8
without interrupting the smoothness thereof.
The portion ‘I6 of insert ‘I2 which is located within
recess "I4 of insert I8 is secured thereto by any
70
convenient means, while portion ‘I8 extends
rearwardly from insert I8 into the heel portion
of the shoe where it is secured between the in
ner sole I0 and the outer sole 56 in a recess 80
provided in the inner sole, or the ?lling material, 1‘
3
2,137,459
respectively, which forms a part of the inner: sole.
In conclusion‘ it is‘well to, ‘reiterate the‘prin
cipal feature of the present invention which. re
sides in an arch support of ‘solid, rig-id,~and sub
stantially incompressible material which con
sists of an insert I8 built into the1shoe between
the outer and inner soles and secured within a
recess 30 provided in the inner sole and a cavity
58 in the outer_sole which'is molded to ?t .tightly
sert having outwardly projecting portions for
supporting said'?rst means, said lining, counter,
upper, and welting and said securing means, and
an outer sole secured to saidwelting and enclos
ing said insert.
2. A shoe construction‘ comprising an inner
sole ‘having a shank portion, a projection extend
ing; from the lower surface of said inner sole
adjacent but spaced from the edge thereof, and
10 over the insert. ‘ The lower ‘surface. of this‘ arch ‘comprising an -outer and an inner portion, a
#10
support treadsabsolutelyv even with‘ the tread lining, a counter, an upper and a welting, a line
surface ofi'a large portion. of the sole and the of stitching ‘securing said lining, counter, upper
tread surface of the heel. By means of this in
and welting to said projection, an arch-supporte
vention, the support of thefoot which normally ing insert of solid and rigid material secured
15 rests upon the‘outer and inner balls and the
to said inner sole intermediate said. outer, and 15
heel, is materiallyenlarged by using. the arch inner portions for rigidly supporting said shank
portion of ‘the foot together with the ball and
heel, portions as supporting points or. surfaces.
Because of the. inclined shape of. the lateral and
20 rear sides of the insert and the corresponding
shape of the varch-supporting ‘projection 52 of
the outer sole, the entire ‘insole I0, and thereby
the. entire sole of the foot of the wearer, is sup
ported, although the actual tread surface of the
25 projection 52 of the outer sole is relatively small.
Such inclination also reduces the weight of the
shoe materially and. improves the appearance
thereof to such an extent that the shoe when
worn cannot be distinguished under ordinary
.30 conditions from a shoe of customary construc
tion.
-
A further important feature resides in the fact
that the substantially incompressible arch sup
port retains the arch of the foot in its natural
35 position and does not permit the same to ?atten
out under the weight of the wearer. Conse
quently, the toe portion of the foot does not
have the tendency to turn upwardly when the
wearer is in standing position, but rather urges
40 the toe portion of the shoe downwardly. The
toe portion of the shoe therefore retains its
original position substantially parallel to the
ground with its tread ‘surface at a substantially
even level with the tread surface of the remain
ing part of the outer sole including the arch
supporting projection 52 and the tread surface
of the heel. Since the shank portion of the
shoe can, under no circumstances, be broken
down under the Weight of the wearer, the shoe
retains its original shape and pleasing appear
ance after having been worn for a considerable
length of time.
Last, but not least, another important advan
tage of the present invention resides in encasing
and supporting those portions of the shoe which
are secured together by the inseam and in pr0~
tecting the inseam itself from tearing.
Inas
much as the last mentioned result is obtained
through the same element which produces all
60 the previously described results, that is by insert
l8, it will be seen that this element performs the
triple function of supporting the arch of the
foot, of supporting and protecting the inseam,
and of improving the appearance and increasing
the life of the shoe.
I claim:
7
1. A shoe construction comprising an inner
sole having a shank portion, means on said inner
sole adjacent the edge thereof and projecting
downwardly therefrom, a lining, a counter, an
upper and a welting, means for securing said
lining, counter, upper and welting to said ?rst
means, an arch-supporting insert of solid and
rigid material secured to said inner sole and
rigidly supporting said shank portion, said in—
portion, said insert having outwardly projecting
portions unitary with said insert for supporting
said projection, said lining, counter, upper and
welting. and said stitching, and'an outer sole 29
secured to said welting and tightly enclosing said
insert.
,
»
i
i
1
.
~
'
x
3. A shoe construction comprising an inner
sole having a shank portion, propections extend
ing from the lower surface of said inner sole ad 25
jacent but spaced from the outer and inner edges
thereof and forming a part of said inner sole, a
lining, a counter, an upper and a welting, each
having end portions, a line of stitching securing
all of said end portions to said projections, an 30
arch-supporting insert of solid and rigid material
rigidly secured to said inner sole intermediate
said projections, said insert having portions
tightly and rigidly enclosing said projections,
said end portions and said stitching on two sides, 35
and an outer sole secured, to said welting and
tightly enclosing and surrounding the same.
4. A shoe construction comprising an inner
sole having a shank portion, said portion being of
convex shape in longitudinal direction to con 40
form with the longitudinal arch of a foot and of
concave shape in transverse direction to conform
substantially with the transverse metatarsal arch
of a foot, projections extending from the lower
surface of said inner sole adjacent but spaced 45
from the outer and inner edges thereof, and
forming a part of said inner sole, said projec
tions forming a recessed portion intermediate
thereof, a lining, a counter, an upper and a
welting each having end portions, a line of stitch
ing securing all of said end portions to said pro 50'
jections, an arch-supporting insert of solid and
rigid material having an upper surface of a
shape conforming to the shape of the shank por
tion of said inner sole, said insert being rigidly
secured to'said inner sole and being partly dis 55
posed within said recess and ?tting tightly there
in so as to press against the inner walls of said
projections, said insert having laterally project
ing portions, the upper surface of said projecting 60
portions, rigidly supporting said end portions and
an outer sole having a downwardly extending
projection at the shank portion thereof forming
a cavity for said insert, said outer sole being se
cured to said welting and ?tting tightly over the
lower surfaces of said insole and said insert.
5. A shoe construction comprising an inner sole -
having a shank portion, said portion being of
convex shape in longitudinal direction to con
form with the longitudinal arch of a foot and of
concave shape in transverse direction to con 70
form substantially with the transverse metatar
sal arch of a foot,'projections extending from the
lower surface of said inner sole adjacent but
spaced from the outer and inner edges thereof, 15
4
2,187,469
and forming a part otsaid inner sole, said pro
jections forming a recessed portion intermediate
thereof, a lining, a counter, an upper and a welt
ing each having end portions, a line or stitching
securing all of said end portions to said projec
tions, an arch-supporting insert of solid and
rigid material having an upper surface of a shape
conforming to the shape of the shank portion of
said inner sole, said insert being rigidly secured
to said inner sole and being partly disposed with
in said recess and ?tting tightly therein so as to
press against the inner walls of said projections,
said insert having laterally projecting portions,
the upper surface of said projecting portions,
rigidly supporting said end portions, an outer
sole having a downwardly extending projection
at the shank portion thereof forming a cavity for
said insert, said outer sole being secured to said
welting and ?tting tightly over the lower sur
faces of said insole and said insert, and a heel
secured to the heel portion of said outer sole, the
tread surface of said outer sole being at an even
level with the lower surface of said projection
and the tread surface of said heel.
6. A shoe construction according to claim 5,
further comprising a steel insert, said ?rst in
sert having a recess in the upper surface thereof,
said inner sole having a recess at the lower side
of the heel portion thereof, said steel insert be
ing secured within said last two recesses.
7. In a shoe construction according to claim 5,
said insert having inclined sides and an inclined
rearward end, said outer sole being molded to
correspond to the shape of said insert whereby
said projection is rendered inconspicuous, and a
steel insert, said ?rst insert having a recess in
the upper surface thereof, said inner sole having
a recess at the lower side of the heel portion
thereof and rearwardly ofsaid insert, said steel
insert being secured within said last two recesses
for reinforcing the reduced rearward end of said
20
insert.
ANTHONY E. PIEKENBROCK.
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