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Sept. 17, 1946._
._ M, MARGoLjN
‘L f
originai Filed July 8, 1940
BY' Meylan mmouof
Patented Sept. 17, 1946
Meyer Margolin, Elgin, Ill.
Application July S, 1940, Serial No. 344,414, which
is a divisionof application Serial No. 272,364,
May 8, 1939. Divided and this application May
22, 1943, Serial No. 487,986
4 Claims.
This application is a division of my Patent
(Cl. 36-3)
shoe only by means of a complex arrangement in
which an opening under the main arch is em
pîoyed. My construction provides for the ñrst
My invention relates to a novel resilient insole
time a novel resilient insole which in itself is
and more particularly to an insole, the forepart
of which is resilient with a periphery of material CA formed to provide resilience for the forepart of
the insole and at the same time a forced breath
stili enough to hold the necessary stitching for
ing simultaneously over a large area of the fore
attachment of the insole in the shoe. My novel
part of the shoe.
insole has grooves located on the bottom thereof,
It is the object of my invention to provide a
which grooves are substantially rectangular in
novel means for attaching a rubber-like forepart
cross section. The grooves are adapted to be
portion to a stiff shank piece.
compressed and expanded to provide forced
It is a further object o_f my invention to form
‘breathing which is transmitted by suitable perfo
integrally With a rubber-like forepart portion of
rationg in the insole to the interior oi the shoe.
an insole, a metatarsal arch support and a pro
I provide ball cushion support for the foot by
, jection adapted to iit into an opening in a shank
means of a central resilient portion of greater
Number 2,319,818, granted May 25, 1943.
thickness than the edge portion of lap and insole.
The prior art has long recognized the problem
of a need for a resilient forepart for the shoe.
The desirability of an eiîective ventilation or
piece to engage said forepart portion to Vsaid
It is a further object of my invention to pro
vide a resilient insert with a periphery sufûciently
forced breathing for the shoe has long been noted, 20 stiff to hold the necessary stitching-
but up to the present time no constructions have
Ibeen devised which suitably meet the problems of
providing resilience and forced breathing in the
It is a further object of my invention to pro
vide a resilient insole having transverse grooves
terials, such as cellular rubber or other resilient
It is still a further object< of my invention'to
provide a resilient insert in an insole, which insert
carries the above described forced breathing
extending part Ways across‘an insole and perfora
tions adjacent said grooves, said grooves being
forepart of the shoe.
My invention comprises a resilient insole, the 25 adapted upon expansion and compression to force
air through said perforations.
forepart of which is primarily constructed oi ma
material, and the periphery of which comprises
either leather alone or leather in combination
with the resilient material, the leather providing 30 grooves and adjacent perforations.
It is a further object of my invention to pro
stiifening and backing for holding the stitching.
vide a resilient insole havingA about its periphery
The relatively stili material may be any material,
recesses into which are inserted stiffening pieces
the physical properties of which correspond to.
comprising a stiff toe member, stiiî side members,
leather in this art.
I provide perforations in the resilient material :o. Ul and a stiff shank portion of an insole, in separate
which extend through the resilient material and
These and further objects of my present inven
I also provide certain transverse grooves which
tion will become apparent from the description
are alternately compressed and expanded by the
which follows taken in connection with the draw
action of the foot in Walking so Aas to force air
ing, in which
from these transverse grooves through the perio
Figure 1 is a plan View of the top of the re
rations to the foot itself.
silient insole of my invention showing a construc
I provide various constructions by means of
tion in which the rubber middle portion has a
which I can achieve the desirable objective of a
double flap into which >double flap are positioned
resilient insole with stili periphery, which insole
is permeable to air and which insole may carry 45 stiffening members which are adapted to hold the
stitching of the shoe. .
integral therewith metatarsal support and arch
Figure 2 is a Section taken along the lines '2-2
of Figure l.
My resilient insole _is not to be confused with
Figure 3 is a section taken along the line 3-3
the rubber resilient fillers which have been dis
closed in this art. Such iillers lie between the 50 of Figure 1.
Figure 4 is a section taken along the line 4-4
insole and the outsole and although they are re
of Figure 1.
silient in themselves do not increase the resilience
Figure 5 is a plan View of the top of a modified
of the forepart of the shoe but act only to possibly
form of the resilient insole of my invention in
soften such forepart to the step. Such rubber
fillers have been employed to force air into the 55 which the rubber middle portion has a single ñap
and the various stiffening members, comprising
a toe stiifening section, side stiifening sections
secured thereto by stitching 62 and 63. It is to
be noted that the line of stitching 63 is imme
diately adjacent the junction of the insert 5i
and the shank portion, are laid on to that flap to
be united thereto.
Figure 6 is a cross section taken along the _line
5-5 of Figure 5.
Figure 7 is a cross section taken along the line
'l-'l of Figure 5.
Figure 8 is a section taken along the line 3-3
of Figure 5.
Figure 9 is a plan view of the top of a modified
form of my invention in which the middle rubber
portion has a central flap on each side of which
are laid stifîening members to be‘unit'ed to that.
and the stiffening member 65 so that there can
be no gap even under stress at that point. Such
gapping would mean pinching of the sock lining
with consequent wrinkling.
To effect the joining of the shank 55 to the
resilient portion, I provide a projection 65 shown
molded integrally with the flap 5d, which projec
tion 65 fits into a recess E6 in the shank portion
5B. Y As described hereinbefore, 'the resilient por
tion is provided with forced breathing grooves 68
and adjacent perforations 5S having bosses 'I0
15 at the bottom thereof.
Figure 10 is a section taken along the line
Referring now to Figure 9, I show a Still further
modified form of my invention in which I pro
vide a shank portion 15 and a resilient forepart
portion 16 which has a single centrally extend
Figure 12 is a section taken along the line 20 ing nap 61. The toe stiffening portion 'I8 com
I2---l2f of Figure 9.
prises an upper layer 'I9 and a bottom layer 80
Referring now specifically to Figure 1 I show
of the shape shown at I3 Which‘ fit on each side
the- shank portionof the insole 20 and the resil
of the centrally extending flap of the resilient
ient forepart portion 2i. The resilient portion
portion and which layers have openings 8| and
has extending flaps 22 and 23'. These flaps have 25 82 into which projections 83 and 813 of the cen
in the forepart and rear extensions 25, Z1 and 28
trally extending flap which are molded integrally
molded integrally therewith which are adapted
with the flap, project. Similarly, the side rein
lli-_l0 of Figure 9.
Figure 11 is a section taken along the line
ll-ll of Figure 9.
to enter suitable recesses» 29 and-35 in» the toe
stiffening` piece 3-I and the portion 20 respectively
in order to secure ya posit-ive and accurate en
gagement therewith. The engagement is ef
fected- by inserting the toe piece 3| between the
flaps in such a Way that the projection 25 rides
into the opening 29 in the indicated` portion of
the toel piece and similarly inserting the shank
portion 2G between the double flaps so that the
projections 21 and- 28 ride into and engage re
cess'SU-in `the shank portion.
forcing members comprise an upper stiifening
member 85 and a lower sti'i’fening member 86 on
each side of the centrally extending liap 6l.
To facilitate th‘e joining of the resilient por
tion to the shank portion 15, I provide a cen
trally extending flap 88 having two side projec
tions 39 which ñt into corresponding openings in
the flaps 9€) and 9| of the shank portion I5. In
the main part of the resilient portion are grooves
95 and adjacent thereto are perforations 95 hav
ing on the bottom 'thereof bosses 97V. Extending
The side stiiTeni-ng` members 33k and 34 are
from the resilient portion is a metatarsal support
inserted between th'e flaps 22» and 23 at the sides 40 92.
of theV insole andz then suitable rows of stitching
Referring now generally to the constructions
35 and 35 secure the respective stiifening mem
I have` shown throughout Vthe drawing, itis to be
bers and shank portion to the resilientV forepart
noted ‘that it is desirable that the »center part
portion. On the bottom of the resilient portion
of the resilient. forepart is of greater thickness
and shown in dotted lines are grooves 31 which
than the peripheral portions thereof. This is to
are adapted to be compressed to-drive> air through
provide a round bottom shoe effect and a center
the perforations 38- whichvhave the bosses 39.
thickness for ball cushion support.
As- can ‘be seen in. Figure 4, the- rear flap ex
The flap extensions which extend over the
. tension of th'e resilient portion isl molded in the
stiifening portions are of special value not only
form of a metatarsalsupport ¿il which has suit 50 because they provide a positive means for secur
able perforations 4I therein to provide for a
ing the insert to the insole, tout also because they
greater flow of= air and condensation of moisture.
provide for a, means for decreasing the thickness
Referring now» to .Figure 5, I show a modified
from the center to the periphery. .
form` of my invention, wherein> 50 refersrto the
As can be noted, I have shown a number of
shank of the insole and 5I to the resilient por 55 modifications of my invention whereby I can
tion of my insole. The resilient portionis formed
provide an insole with the resilient forepart por
with an outwardly extending> ñap at the sides and
tion and stiff toe,.side and shank members in ñrm
front portiony and a` double nap at the rear by
union therewith. The Various forms of my in
reason of the metatarsal support molded inte
vention which I have set forth provide for quick
grally therewith on the top. The resilient flap
assembly and this is especially an improvement
is indicated in `th‘e toe portion as 52, at the sides 60 over the form in which al leather insole has a
as 53 and the rear asl 54. The added. metatarsal
cut out portion in the middle of the forepart
support is55.
thereof and an insert placed therein.
As will be noted- from the sections shown in
I provide according to my inventionwarious
Figures e, '1 and 8, the nap isonly a portion of 65 stiffening membersf including a toe sti?fening
the thickness of the resilient main portion it
self, the stiff leather portion 56 being of such
thickness as to be iiush with the top of the resil
ient insert. 56 is the toe stiifening portion, it
being necessary to have a fairly stiff area at the
toe section of th’e insole. This toe stiffening por
tion 56 has a recess 5T into which extends the
projection> 58 which is shown molded integrally
with the flap 52. Side reinforcing members 6D
and 5| similarly lie over the ñap 53 and are
member, side stiffening members and a shank
portion. 'I'he particular way in which these stiff
ening members can» be united» tof the resilient
portion has been set forth in detail in Figures
1V to 12. The side stiffening members- may be
separated from or integral with the shank por
tion, in which case the resilient’ materiali is in
serted therebetween and it merely remains'for ¿
the toe stiffening portion to be united` with the .
resilient portion.
I may provide openings in the
toe stifîening member and shank portion for the
purpose of receiving suitable projections which
may be molded into the resilient material so that
ening material is adapted to be inserted therein.
It will be noted that the metatarsal support
Which I provide is molded integrally with the re
a positive and accurate engagement is effected
between the various parts. Similarly I may pro
vide means for engaging the side stifîening ele
ments with the resilient central Vforepart area.
silient material and lies on a flap which rests
on the stiff shank portion. This may be seen
in Figures 4, 8 and 12, as well as the plan views
To do this, I may, for example, provide projec
tions molded with the ñaps of the resilient fore
corresponding thereto.
In my construction, by providing the forced
breathing over the entire forepart area of the
part area, which projections are adapted to en 10 foot, I provide a well ventilated shoe that effec
tively and economically solves the problem of
gage corresponding recesses in the side stiiîening
shoe ventilation. Specifically, the spaced trans- v
members. This provision for locking engage
verse grooves provide a great bending flexibility
ment between the various stiiîening elements
for the insole because of the obvious physical
and the resilient material is of importance both
because it provides speed of operation in assem 15 advantages involved and the bosses on the bot
tom of the perforations provide a` spring effect
bly of the various parts, in that the operator can
Which is of definite advantage for obtaining good
quickly insert a stiffening part, such as the toe
stiffening member, and by fitting the recesses
walking properties. The perforations play their
part in providing for greater softness and com
terial, may determine the proper positioning of 20 pressibility for the resilient forepart itself.
It is understood that the constructions set forth
that toe stiffening element Without delay.
above are by Way of example of the principles of
Similarly with the side stiñening elements and
my invention only and that I intend to be lim
the shank portion. In addition to accelerating
ited not by the specific constructions shown but
the assembly operations, this construction also
only by the claims here appended.
provides for more positive engagement of the
therein with the projections on the resilient ma
various units of my assembly so that before or
I claim:
1. A resilient insole comprising a resilient cen
after the stitching which permanently secures
tral forepart area, a ñap formed integrally with
the various parts together, there can be no dis
said resilient central forepart area, independent
placement of the parts with respect to one an
other. It is obvious that such a displacement 30 edge stiñîening means carried by said flap.
would be a serious matter in that it would cause
2. A resilient insole comprising a resilient cen
interruption in the operations and produce re
tral forepart area, a flap formed integrally with
said resilient central forepart area, peripheral
stiiîening means secured to said flap anld- means
different constructions by means of which the 35 for locking said stiifening means to said resilient
As can be seen, I have exampled a number of
periphery of the resilient forepart area of my
central forepart area.
3. A resilient insole comprising a resilient cen
tral forepart area, a flap formed integrally With
said resilient central forepart area, and a stiff
by providing separate side stiiîening elements and
shank and toe portions and I have also shown 40 toe piece carried by said flap.
4. A resilient insole comprising a resilient cen
that the side portions may be integral with the
insole may be so reinforced as to enable it to
receive the necessary stitching. I have done this
shank portion, and in that event, a separate toe
portion may be quickly inserted in its relative
position with the resilient material.
I have further shown that I may form my re
silient material With a single ilap centrally posi
tioned or positioned either at the top or the bot
tom with respect to the thickness of the flap or
I rmay provide two flaps in which event the stiff
tral forepart area,Y a ñap formed integrally with
said resilient central forepart area, side stiñen
ing means carried by said flap, a stiff toe piece
carried by said flap and means for locking said
separate stiffening means to said resilient central
forepart area.
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