U.S. patent number 3,878,626 [Application Number 05/254,774] was granted by the patent office on 1975-04-22 for detachable soles.
Invention is credited to Claude-Roger Isman.
United States Patent |
3,878,626 |
Isman |
April 22, 1975 |
DETACHABLE SOLES
Abstract
A shoe that includes at least a lower sole, an upper sole, and a
flexible upper, which are detachable and interchangeable, said
lower sole having a peripheral recess, surmounted with a peripheral
flange, itself eventually surmounted with a peripheral inwardly
bowed welt, said upper sole having a peripheral flange, surmounted
with a peripheral recess, itself eventually surmounted with a
peripheral flange, said flexible upper being placed and maintained
between both soles, by corresponding inter-engagement of the said
flanges and recesses, the peripheral recess of said lower sole
incasing the peripheral lower flange of said upper sole, the
peripheral recess of said upper sole receiving the peripheral
flange of the lower sole. The flexible upper could be a usual sock,
stocking or the like, without necessity of any special
reinforcement, or any aperture thereon, or therethrough.
Inventors: |
Isman; Claude-Roger (Paris,
FR) |
Family
ID: |
26216395 |
Appl.
No.: |
05/254,774 |
Filed: |
May 8, 1972 |
Foreign Application Priority Data
|
|
|
|
|
May 18, 1971 [FR] |
|
|
71.17889 |
Jan 25, 1972 [FR] |
|
|
72.02299 |
|
Current U.S.
Class: |
36/15 |
Current CPC
Class: |
A43B
3/244 (20130101); A43B 3/24 (20130101); A43B
13/36 (20130101); A43B 1/0054 (20130101); A43B
9/00 (20130101); A43B 17/18 (20130101) |
Current International
Class: |
A43B
13/36 (20060101); A43B 3/00 (20060101); A43B
9/00 (20060101); A43B 13/00 (20060101); A43B
17/00 (20060101); A43B 17/18 (20060101); A43B
3/24 (20060101); A43c 013/00 () |
Field of
Search: |
;36/15,11,2.5W |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
789,312 |
|
Aug 1935 |
|
FR |
|
861,723 |
|
Nov 1940 |
|
FR |
|
24,543 |
|
Jan 1931 |
|
NL |
|
75,964 |
|
Mar 1918 |
|
CH |
|
Primary Examiner: Guest; Alfred R.
Claims
What I claim is:
1. A shoe comprising an outer sole, an inner sole and a flexible
upper;
said outer sole having an upstanding flange formed on the upper
peripheral edge of said sole, an inwardly directed rib on said
upstanding flange forming a recess thereunder;
said inner sole having a thickness approximately equal to the
height of the upstanding flange on said outer sole, a recess formed
in the peripheral edge face of said inner sole with flanges above
and below said recess to form said recess;
the recess and flanges of said inner sole being complimentary to
the rib and recess on said outer sole and received therein;
the lower outer portion of said flexible upper positioned between
the said recess and flanges of said inner sole and the said rib and
recess of said outer sole and secured in position by the
interfitting of said recesses, flanges and rib of said soles.
2. A shoe according to claim 1 wherein said outer sole upstanding
peripheral flange has a groove formed in the upper surface, said
upper including an additional layer to that received between the
edge of said inner sole and the flange of said outer sole, the
lower edge of said additional layer of said upper positioned in
said groove in the upper surface of said upstanding flange and
secured therein.
3. A shoe according to claim 1 wherein said flexible upper includes
a sole portion continuous with the lower side portions of said
upper, said sole portion of said upper positioned between the
bottom surface of said inner sole and the upper surface of said
outer sole.
Description
This invention relates to articles of footwear. According to the
present invention there is provided an article of footwear, the
sole of said article having at least two parts which are connected
to one another and which define between them a continuous free
space the width of which corresponds to the thickness of an upper
which is entered into or which passes through said space and is
held in position by the inter-engagement between the sole parts,
the upper being held in position in said space without the
necessity of providing apertures therethrough.
In the preferred form, one of the sole parts has a continuous
recess around its periphery and the other sole part has a
corresponding rib.
Additionally, the sole parts may be provided with magnetic or
ferromagnetic inserts by means of which the sole parts are held in
their desired relative position with respect to one another, but
this is not claimed, as being prior art.
For a better understanding of the present invention, a survey of
the prior art, has discovered that the following ideas are in the
public knowledge,
-- separability of soles and uppers, or of soles and shoes
-- the bottom of uppers could be placed and held between two
corresponding soles.
But, these Patents were not successful, because:
-- pieces were difficult to be manufactured
-- pieces were necessitating time and tools for construction
(screws, discontinuous buttons, rings, snap fasteners, straps)
-- usual socks or stockings could not be used without
perforation.
-- or, embedded grasping additional pieces were used, like metal
springs, tensile wire, hems with rings provided.
With the simplicity of this particular invention, these
inconveniences are avoided; and with this invention we have now,
the following advantages:
-- soles are easily manufactured (by moulding or injection,
plastics, as an example, . .)
-- soles are easily and rapidly joined or separated by the
customers, without necessitating any tools.
-- simple socks could be used without spoilation
-- the large universality of possibilities gives a complete liberty
to follow any shoe-fashion, and any use (town, beach, laboratory,
plant, holiday, flat . . . and also, for wounded feet)
Reference will now be made, by way of example, to the accompanying
drawing in which:
Fig. 1 is a vertical section through an article of footwear shown
in an "exploded" condition;
FIG. 2 illustrates the article of footwear of FIG. 1 in its
assembled condition:
FIGS. 3 and 3A illustrates two modified articles of footwear;
and
FIGS. 4 to 7 are half-sections through further constructional forms
of footwear.
FIGS. 8 and 9 relate to separate not claimed ideas.
Referring firstly to FIGS. 1 and 2, the article of footwear
illustrated has two sole parts referenced 2 and 3 which can be of
leather, wood, rubber, metal, polyurethane, PVC, or other synthetic
plastics material. The parts can be moulded. The two soles are
firmly secured together by providing one of them with a continuous
internal recess 11 and the other with a continuous mating flange
12. As shown in FIG. 3, an upper 1 is secured in place between the
sole parts 2 and 3 without it being necessary to perforate or
otherwise damage the upper in any way. The dimensions of the sole
parts 2 and 3 are such that when the upper sole part 3 is pressed
into the lower part 2 in the absence of an upper 1, a continuous
gap remains which has a width substantially equal to the thickness
of the material of the upper.
The upper 1 is made of any material which is sufficiently flexible,
at least in the lower part thereof, to adopt the desired
configuration between the sole parts 2 and 3.
FIG. 3 illustrates an arrangement in which the upper 1 and sole
part 3 are substantially the same as that illustrated in FIGS. 1
and 2. However, the sole part 2 is, in the right hand part of the
Figure, provided with an additional recess 11 for receiving a
further upper 5. In the left hand part of the Figure there is an
intermediate sole part 4 and a further upper 5 which is held in
place between the intermediate sole part 4 and the sole part 2. Any
number of protective uppers 5 and intermediate sole parts 4 can be
provided. The article of footwear illustrated in this Figure is
particularly intented for use in environments where the foot of the
wearer must be protected from corrosive agents. It could also be
used in space or where there was a danger of the wearer receiving
an electric, or chemical shock or anyelse.
In FIG. 4 the recess in the sole part 2 is directed outwardly and
the sole part 3 has a depending peripheral flange which engages
with the recess 2.
In FIG. 5 the lower sole part 2 has an upwardly open recess and the
upper sole part 3 has a corresponding head which is downwardly
directed and is pressed into the recess of the lower sole part.
The arrangement of FIG. 6 comprises an upper 1, a lower sole part 2
and upper sole part 3. The upper and lower sole parts are provided
with ferromagnetic or magnetic parts 6 which draw the sole parts
together to hold the upper 1 in position, only shown for
memory.
In FIG. 7 the upper sole 3 is held in place by a wire 7 which
passes through a loop-formation 8. The wire 7 is tensioned to
enhance its grip on the upper sole part 3.
Sole part 2 of FIG. 8 is provided with hooks 9 grasping textils
uppers, and shows curve 10 on FIG. 9. Both FIGS. 8 and 9, are shown
for memory, only.
The sole part 3 could be shaped to provide a comfortable fit for a
person with a foot deformity or other ailment. The upper could, if
desired, be of cotton or other soft material so as to make the
article of footwear suitable for a person with sensitive or injured
feet.
When using a simple sock, sole part 3 is introduced in this sock,
and the bottom of this sock is held between sole parts 2 and 3, by
pressing one into the other.
* * * * *