Information
-
Patent Grant
-
6691360
-
Patent Number
6,691,360
-
Date Filed
Thursday, December 20, 200123 years ago
-
Date Issued
Tuesday, February 17, 200421 years ago
-
Inventors
-
Original Assignees
-
Examiners
Agents
- St. Onge Steward Johnston & Reens LLC
-
CPC
-
US Classifications
Field of Search
US
- 036 115
- 036 75
- 036 103
- 036 1173
- 036 12
- 036 18
- 036 21
- 036 22 R
- 036 4
- 036 25 R
- 036 28
- 036 30 R
- 036 32 R
- 012 146 BC
- 012 146 BR
- 012 146 C
- 012 142 C
- 012 142 E
- 012 142 RS
-
International Classifications
- A43B312
- A43B310
- A43B902
- A43B1328
-
Abstract
A method for making footwear including forming an upper assembly; providing an outsole including a recessed region and a groove region formed around a periphery of the outsole; and attaching the upper assembly to the outsole. The upper assembly is formed by a fitted upper having a vamp to a socklining, the fitted upper then attached to a gasket. The present method provides the gasket which can readily receive a Opanka stitch series for joining the upper assembly and the outsole.
Description
TECHNICAL FIELD
This invention relates to footwear and methods of constructing footwear.
BACKGROUND
A variety of constructions for making footwear are used by the footwear industry. For the most part, each footwear construction has characteristics that make it particularly well suited for durability, comfort, and ease of production. Typically, in an effort to improve efficient manufacturing and the aesthetic appeal of the footwear, a number of different assembly methods can be used.
SUMMARY
In a general aspect of the invention, a method for constructing footwear includes forming an upper assembly, providing an outsole including a recessed region and a groove region formed around a periphery of the outsole, and attaching the upper assembly to the outsole. Forming the upper assembly includes providing a gasket, a fitted upper including a vamp attached to a socklining, and attaching the fitted upper to the gasket.
In embodiments of the invention, one or more of the following features may also be included. The method also includes close-seaming the gasket around a perimeter of the socklining.
In certain embodiments, the method includes providing a groove molded around an outsole peripheral region, and pushing a lower edge of an Opanka stitched gasket into the groove.
As yet another feature, the method includes covering the outsole with a wrapper, the wrapper covering an outsole heel region and an outsole front region.
Further, the method comprises adhesively attaching a cushioning layer within the recessed region of the outsole.
As another feature, the method includes sewing the upper assembly to the outsole by using an Opanka stitch series as well as stitching the gasket using the Opanka stitch series to an outsole perimeter rim, thus forming a double seam Opanka stitch series. The sewing can be hand-made.
Moreover, the method includes pushing an upper edge of the wrapper into the groove, joining a lower edge of the Opanka stitched impression gasket.
According to another aspect of the invention, a footwear includes an upper assembly and an outsole including a recessed region and a groove region formed around a periphery of the outsole. The outsole is attached to the upper assembly. The upper assembly includes a gasket and a fitted upper including a vamp attached to a socklining, and the fitted upper attached to the gasket.
In embodiments of the invention, one or more of the following features may also be included. The gasket is close-seamed around a perimeter of the socklining, and a groove molded is provided around an outsole peripheral region. A lower edge of an Opanka stitched gasket is inserted into the groove.
In certain embodiments, the outsole is covered with a wrapper. The wrapper can cover an outsole heel region and an outsole front region.
As another feature, a cushioning layer is adhesively attached within the recessed region of the outsole.
As yet another feature, a heel is provided in the outsole. Moreover, the upper assembly of the footwear is sewed to the outsole by using Opanka stitch series and the impression gasket is stitched to an outsole perimeter using the Opanka stitch series.
In addition, an upper edge of the wrapper is inserted into the groove joining a lower edge of the Opanka stitched impression gasket.
As another feature, the upper assembly of the footwear is made of leather and the outsole is made of polyurethane. The gasket can be made of the same material as the upper assembly. As another feature, a walking surface layer having a notch line across in an outsole peripheral region is provided with the notch line accommodating the wrapper around an outsole heel region and an outsole front region.
Embodiments may have one or more of the following advantages.
Among other advantages of making footwear using the above described method is that an outsole is configured to readily receive a completed upper assembly. Thus, the upper assembly can be simply and economically attached to the outsole. Another advantage of this method lies in providing a styled, durable, and lightweight footwear. Given a practical outsole to which an upper assembly can be readily attached and stitched to form an Opanka stitch series, the process efficiently streamlines footwear production and manufacturing.
Another advantage is that the process of attaching the upper assembly to the outsole provides durability and resistance to all the components of the footwear. Even with prolonged daily wear on abrasive walking surfaces, the outsole is less prone to deformation due to the flexibility, resilience, solid design, and strength of the outsole.
In addition, this method of making footwear inherently enhances the overall appearance of the footwear by permitting genuine hand-sewn seams in the form of double-seam Opanka stitch series provided around the entire periphery of the shoe. A fashionable style results not only from the various durable components but also from the superior look of their combined assembly. Another advantage of this footwear is the enhanced comfort provided by the cushioning layer of the outsole and the flexible design of the outsole, which significantly reduces foot and leg muscle fatigue.
Moreover, the pre-engineered apertures in the impression gasket provided for forming the hand-sewn seams ensure accuracy of seaming and wrapping locations as required for improved fitting qualities.
Furthermore, the footwear has a smoother, finished interior without requiring a platform. Accordingly, a wearer's foot rests on the socklining which rests on the cushioning layer, thereby creating optimum comfort conditions.
The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the invention will be apparent from the description and drawings, and from the claims.
DESCRIPTION OF DRAWINGS
FIG. 1
is a schematic side view of a footwear.
FIG. 2
is a top view of an upper assembly.
FIG. 3
is a bottom view of the upper assembly of FIG.
2
.
FIG. 4
is a perspective view of an outsole and cushioning layer.
FIG. 5
is a schematic side view of the outsole of FIG.
4
.
FIG. 6
is a top view of the footwear of FIG.
1
.
FIG. 7
is a bottom view of the footwear of FIG.
1
.
FIG. 8
shows a second embodiment of the footwear of FIG.
1
.
FIG. 9
shows a third embodiment of the footwear of FIG.
1
.
DETAILED DESCRIPTION
Referring now to the figures in which identical elements are numbered identically throughout, a description of the embodiments of the present invention will now be provided.
A dress-type sandal footwear
10
is described with respect to
FIGS. 1-7
. Footwear
10
is constructed by joining an upper assembly
50
to an outsole
12
. The upper assembly
50
includes a fitted upper
15
formed by a vamp
2
attached to a socklining
4
, preferably by machine-sewing, forming an internal spacing
8
where a wearer's foot is inserted. The upper assembly
50
further includes an impression gasket
6
that is combined with the fitted upper
15
and the socklining
4
.
Referring to
FIG. 1
, the vamp
2
covers the upper region of a wearer's foot and toes. The vamp
2
can have various types of designs and constructions (e.g., close-toe design or open-toe design). The vamp
2
can also include ornamental features. In this embodiment, the vamp
2
includes a vamp strap
5
that is held by a strap holder
7
. The vamp strap
5
includes a perimeter border stitching
11
to prevent loose threads and give the footwear
10
a styled clean appearance. Aesthetic decoration is provided so that the footwear
10
can have a distinctive appeal. In addition, vamp slits
3
are formed which not only provide a stylish and attractive quality but also help ventilate the wearer's foot especially when the wearer is barefoot. The vamp
2
, in this embodiment, incorporates a toe box design so that the internal spacing
8
especially in the toe region (not shown) provides roomier spacing for accommodating the wearer's toes. This way, the wearer can prevent various toe ailments and also easily place or remove the footwear
10
from her feet. Moreover, the vamp
2
may also include an inner liner
9
to cover an interior wall of the vamp
2
for aesthetic as well as practical purposes such as absorbing moisture when the footwear
10
is again worn barefoot. Thus, in general, the shape and design of the vamp
2
increases comfort by providing a roomier and more relaxed fit.
Referring to
FIG. 2
in particular, the upper surface
44
of the socklining
4
is shown stitched to the impression gasket
6
. The vamp
2
is shown attached to the socklining
4
by a close-seam
48
, i.e., forming a line of junction by sewing together two pieces of material along their margins and hiding the stitching by reversing, along the socklining perimeter
17
extending the region corresponding to the internal spacing
8
of the footwear
10
. In this embodiment, the socklining
4
includes a padding to provide cushioning and support to the wearer's foot. The socklining
4
is made up of two components: a socklining skeleton
34
and a socklining base
36
. The socklining base
36
includes a larger surface area than the socklining skeleton
34
. The socklining skeleton
34
is superimposed on the socklining base
36
and then machine sewed, thereby forming a socklining seam
38
. The socklining skeleton
34
includes an arch support
40
. The arch support
40
as well as the socklining skeleton
34
have air apertures
25
to increase the porosity of the already porous socklining
4
for foot ventilation, drying, and comfort. The socklining
4
includes an ornamental label
42
for brand recognition. The socklining
4
is made of any suitable material. In some embodiments, the socklining
4
is decoratively quilted to provide an aesthetically pleasing look to the interior surface of the footwear
10
.
Still referring to
FIG. 2
, once the socklining
4
is joined to the vamp
2
, a fitted upper
15
is formed. The fitted upper
15
is attached to the impression gasket
6
along the socklining perimeter
17
by a close-seam operation. In this embodiment, the impression gasket
6
is formed by two “U-shaped” parts, a first part
6
c
covers a front portion of the impression gasket
6
and a second part
6
d
covers a rear portion of the impression gasket
6
. Both parts
6
c
and
6
d
include perforation for the Opanka stitching, as described further below. The impression gasket
6
includes a series of interior perforation
54
and a corresponding series of perimeter perforation
56
preformed in the impression gasket
6
in preparation for the Opanka stitch
14
. Further, the impression gasket
6
includes overlap ends
28
formed by an assembly-line production of this component at the manufacturing level.
Referring to
FIG. 3
, an under surface
46
of the socklining
4
having the impression gasket
6
attached to the socklining
4
is illustrated. Various components of the upper assembly
50
are joined by the closed seam
48
and a vamp seam
49
. In particular, the socklining base
36
and the socklining skeleton
34
(
FIG. 2
) are close seamed with the fitted upper
15
, and the first part
6
c
and second part
6
d
of the impression gasket
6
are close seamed thus forming the close seam
48
. The impression gasket
6
is also joined to the socklining base
36
in the close seam
48
. Although this embodiment only uses one close seam
48
, other embodiments may include more than one stitch series, preferably provided by a machine stitching operation, for attaching the various components of the fitted upper
15
. In addition, the vamp seam
49
joins the vamp
2
to the socklining
4
, and the socklining seam
38
joins the socklining base
36
to the socklining skeleton
34
.
FIG. 3
also shows the ornamental label
42
stitched with a seam
43
to the socklining base
34
.
The outsole
12
of the footwear
10
will now be described. Returning to
FIG. 1
, the outsole
12
is illustrated including a heel
16
, a wrapper
18
, a walking surface layer
20
, and non-skid bumps
22
. The outsole
12
is described in more detail with respect to
FIG. 4
below.
Referring to
FIG. 4
, the outsole
12
includes an upper surface
74
, having a recessed region
78
bordered by an outsole perimeter rim
70
. The recessed region
78
includes outsole cavities
72
for reducing the weight of the outsole
12
and providing added elasticity to the completed footwear
10
. The outsole perimeter rim
70
includes outsole stitching holes
60
along the entire area of the outsole perimeter rim
70
.
The recessed region
78
accommodates a cushioning layer
58
, preferably made of foam material such as polyurethane. The cushioning layer
58
is positioned over the entire area of the recessed region
78
. The softness and shock-absorbent qualities of the polyurethane can be varied from application to application by using a variety of well-known techniques, such as adjusting the type and proportionate amount of reactants. In addition, the softness and shock-absorbent qualities of the foam can be varied by adjusting the volume of foam deposited in the recessed region
78
.
The cushioning layer
58
includes reduced edges and is preferably about 3-5 mm in thickness. The cushioning layer
58
provides shock-absorption and gives the support needed to provide soft cushioning and long term comfort. The cushioning layer
58
is bound tightly to the recessed region
78
and the under surface
46
of the socklining
4
using an adhesive and is further held securely in place by the Opanka stitch series
14
. Preferably, the cushioning layer
58
is shaped in conformity with the recessed region
78
and spaced about ¼ inch from the outsole perimeter rim
70
of the outsole
12
.
The outsole
12
provides a flexible and durable structure for the footwear
10
. Accordingly, for its construction, the outsole
12
is preferably made of polyurethane although it may be produced using any suitable material having similar characteristics. Lightweight plastic materials may be used. The outsole
12
is also preferably designed to provide a styled silhouette making the footwear
10
aesthetically desirable as well as extremely comfortable.
The outsole
12
includes the heel
16
covered by a wrapper
18
. The characteristics of the heel
16
are best described with respect to
FIG. 5
where the outsole
12
includes, in large part, an outsole heel region
82
.
Referring now to
FIG. 5
, a side view of the outsole
12
is shown with only an outsole front region
87
covered with the wrapper
18
(area
66
) and with the remaining outsole heel region
82
(area
68
) not covered by the wrapper
18
, for illustration purposes only. Outsole perimeter rim
70
of
FIG. 4
becomes the outsole upper side strip
84
. A groove
80
is formed between the outsole upper side strip
84
and the outsole heel region
82
. The groove
80
is molded around an outsole upper peripheral region
62
and extends along the entire peripheral region
62
.
The outsole heel region
82
includes outsole side heel areas
83
a
and
83
b,
shaping the heel
16
like a wedge, thicker at the heel end and tapered to a thin edge at the front end of the footwear
10
, i.e., the front region
87
.
In the area
68
where the outsole
12
is not covered by the wrapper
18
, the groove
80
is shown as illustrated in
FIG. 4
, which is used in the operation that forms the double seam Opanka stitch
14
.
In contrast, when the outsole
12
is covered by the wrapper
18
, a forward region
30
and a rearward region
32
of the wrapper
18
covers the outsole front region
87
and the side heel areas
83
a
and
83
b,
respectively. When the wrapper
18
covers the outsole
12
, the notch line
24
serves to guide the placement of the wrapper
18
around the outsole
12
, beginning and finishing this wrapping process at the overlap ends
26
. The notch line
24
is positioned in a lower peripheral region
64
immediately above the walking surface layer
20
. The walking surface layer
20
has a downward tapered configuration ending at an under surface
76
. The under surface
76
includes non-skid bumps
22
that provide traction against slippery walking floors or surfaces.
Referring back to
FIGS. 1 and 4
, the wrapper
18
and the impression gasket
6
join at the groove
80
provided the wrapper
18
covers the outsole
12
. In particular, a lower edge
6
b
of the Opanka-stitched impression gasket
6
is tucked within or inserted into the groove
80
. As the wrapper
18
covers the outsole
12
, the lower edge
6
b
is joined by an upper edge
85
of the wrapper
18
which runs along the upper peripheral region
62
of the outsole
12
. In other words, the upper edge
85
of the wrapper
18
is inserted into the groove
80
thereby meeting with the lower edge
6
b
of the impression gasket
6
. This ‘tucking’ operation which produces a high quality dress-type shoe like the footwear
10
will be further described below in connection with a description of its construction process.
Furthermore, in this embodiment, the wrap
18
that covers the outsole
12
and the upper assembly
50
are made of the same material (e.g., leather). This way, footwear
10
has a coherent, pleasing look. The footwear
10
can be made from several different types of leather. An inner lining
9
(shown in
FIG. 2
) may also be made of a thinner, more absorbent, and breathable type of leather, or polyester. Although leather is preferably the material of choice for quality dress type sandals like the footwear
10
, a suitable material with good qualities, i.e., light-weight, tear resistant, durable, and stylish, can be used. For example, high quality stitched-in textile made of strong fiber material, can be used for the construction of the upper assembly
50
and the wrap
18
.
The double seam operation will now be described with respect to
FIG. 6
which shows an upper surface
86
of the footwear
10
. The upper Opanka stitch series
14
a
attach the impression gasket
6
to the outsole
12
, namely, the outsole perimeter rim
70
, through the interior perforation
54
of the gasket
6
. The upper Opanka stitch series
14
a
is best illustrated in the schematic side view of the footwear
10
provided in FIG.
1
. In a complementary manner, the upper Opanka stitch series
14
a
is accompanied by a side Opanka stitch series
14
b,
thus creating the ‘double seam’ sophisticated styled look characteristic of this embodiment.
Referring to
FIG. 7
, an under surface
76
of the footwear
10
is illustrated. The under surface
76
shows the tapered, curved configuration of the heel
16
. The outsole side heel areas
83
a
and
83
b
are clearly shown in relation to a heel back edge
89
. The under surface
76
includes, most importantly, the walking surface layer
20
having non-skid bumps
22
in a pattern of small circular dots. Such a pattern has both practical and aesthetic considerations. The walking surface layer
20
is preferably made of molded polyurethane and ensures that the contact between the ground and the walking surface is uniformly distributed so that the footwear
10
can be worn for prolonged periods. Moreover, the non-skid bumps
22
provide heel support, lift, and protection from slippery surfaces providing improved traction and safety. In addition, the heel back edge
89
and the outsole side heel areas
83
a
and
83
b
are designed to create the appearance of a highly styled heel
16
.
The construction method for this embodiment will now be described in conjunction with the accompanying figures.
In preparation for constructing the footwear
10
, the vamp
2
is cut, stitched, and finished. Ornamental details are provided in the vamp
2
if desired.
The components of the socklining
4
are also assembled, cut, and stitched. In particular, the socklining skeleton
34
is stitched to the socklining base
36
forming the socklining seam
38
. If desired, the ornamental label
42
is now affixed to the socklining base
36
in the upper surface
44
. Then, the vamp seam
49
joins the vamp
2
to the socklining
4
. The attachment of the socklining
4
to the vamp
2
can be performed as in a California construction thereby providing the fitted upper
15
.
Next, the impression gasket
6
is stitched to the socklining
4
to form the close seam
48
along the entire socklining perimeter
17
, preferably by a sewing operation. During this process, care is taken to ensure that the overlap ends
28
of the impression gasket effectively cover the entire socklining perimeter
17
. This way, the impression gasket
6
is close-seamed following the curves around the socklining perimeter
4
, which will accurately conform to the shape of the outsole upper peripheral region
62
, and specifically, the outsole perimeter rim
70
. This completes the manufacture of the upper assembly
50
.
At this point of the process, the outsole
12
is ready to be attached to the upper assembly
50
. The outsole
12
is molded using an appropriate polyurethane mold to form the recessed region
78
; the outsole perimeter rim
70
which includes the outsole holes
60
for the Opanka stitch series; the groove
80
; the notch line
24
; the walking surface layer
20
; and the non-skid bumps
22
. Prior to attaching the outsole
12
to the upper assembly
50
, the cushioning layer
58
is adhesively attached to the under surface
46
of the socklining
4
as well as to the recessed region
78
of the outsole
12
.
Thereafter, the interior perforation
54
and the perimeter perforation
56
of the impression gasket
6
in conjunction with the outsole holes
60
form the double seam Opanka stitch series
14
. Consequently, the Opanka stitch series
14
join the upper assembly
50
to the outsole
12
. The resulting double seam operation is described in greater detail below.
The impression gasket
6
is aligned above the outsole perimeter rim
70
so that the interior perforation
54
are aligned above the series of outsole holes
60
. In particular, the double seam
14
is formed by creating an upper Opanka stitch series
14
a
by passing a suitable and durable thread through the interior perforation
54
and the outsole holes
60
and also creating a side Opanka stitch series
14
b
by passing preferably the same thread through the perimeter perforation
56
. This double seam
14
operation generates a rounded edge
6
a
and the lower edge
6
b
of the impression gasket
6
as shown in FIG.
1
. Moreover, the rounded edge
6
a
forms the upper side strip
84
as illustrated in FIG.
5
.
Subsequently, the lower edge
6
b
is tucked inside the groove
80
forming a neatly packed upper assembly
50
joined to the outsole
12
.
In this embodiment, the wrapper
18
is provided to cover the outsole
12
, in particular, the outsole heel region
82
, i.e., the outsole side heel areas
83
a
and
83
b,
the outsole front region
87
, and the heel back edge
89
. The forward region
30
of the wrapper
18
is cut to accurately fit the thinner width shape of the outsole front region
87
and similarly the rearward region
32
of the wrapper
18
is cut to fit the shape of the outsole heel region
82
. As the wrapper
18
is prepared to cover the outsole
12
, the notch line
24
guides the close-fit placement of the wrapper
18
, specifically, in the outsole lower peripheral region
64
. The wrapper
18
is aligned with and wrapped around the outsole
12
, from one of the overlapping ends
26
to another, both of which are then glued together when they meet so that no loose pieces of the overlap ends
26
will be formed. The notch line
24
allows the wrapper
18
to present a smooth and stylish look for the entire footwear
10
by providing a structural separation layer between the walking surface layer
20
and the outsole
12
which is covered by the wrapper
18
.
Finally, in this embodiment, as the wrapper
18
covers the outsole
12
, the upper edge
85
of the wrapper
18
which runs around the upper peripheral region
62
of the outsole
12
is tucked in or inserted into the groove
80
. That is, the upper edge
85
of the wrapper
18
joins the lower edge
6
b
of the impression gasket
6
inside the groove
80
. Accordingly, the groove
80
securely holds the upper edge
85
of the wrapper and the lower edge
6
b
of the impression gasket
6
folded in. The result is a ‘tight’, well-formed design without any unsecured or loose parts. Although the wrapper
18
is provided in this particular embodiment, outsole
12
can be used without any covers such as the wrapper
18
. The completed footwear is shown in FIG.
1
.
In another embodiment as shown in
FIG. 8
, a footwear
10
a
is provided having a flat outsole
12
a
attached to an upper assembly
50
a
by an Opanka stitch series
14
. An impression gasket
6
e
is provided extending the length of the footwear
10
a.
The impression gasket
6
e
includes two “U-shaped” parts. A first part
6
f
covers a front portion of the impression gasket
6
and a second part
6
g
covers a rear portion of the impression gasket
6
. Both parts
6
f
and
6
g
include perforation for the Opanka stitching. In another embodiment as shown in
FIG. 9
, a heel
16
b
is in the form of an open heel type with an outsole
12
b
shaped accordingly.
Although the invention, preferably relates to casual sandals, other fields of application are entirely within the scope of the invention, especially in the broad sector of footwear manufacturing. Thus, a number of embodiments of the invention have been described. Nevertheless, it will be understood that various modifications may be made without departing from the spirit and scope of the invention. Accordingly, other embodiments are within the scope of the following claims.
Claims
- 1. A method for construction of footwear comprising:forming an upper assembly including: providing a gasket; providing a fitted upper including a vamp attached to a socklining; attaching the fitted upper to the gasket; providing an outsole including a recessed region and a groove region formed around a periphery of the outsole; attaching the upper assembly to the outsole; close-seaming the gasket around a perimeter of the socklining and providing a groove molded around an outsole peripheral region; and pushing a lower edge of an Opanka stitched gasket into the groove and covering the outsole with a wrapper.
- 2. The method of claim 1 further comprising stitching the vamp to the socklining by machine stitching and sewing the upper assembly to the outsole by using Opanka stitch series.
- 3. The method of claim 1 further comprising adhesively attaching a cushioning layer within the recessed region of the out sole.
- 4. The method of claim 1 further comprising providing a heel in the outsole.
- 5. The method of claim 1 further comprising stitching the impression gasket using Opanka stitch series to an outsole perimeter rim.
- 6. The method of claim 1 wherein the wrapper covers an outsole heel region.
- 7. The method of claim 6 further comprising pushing an upper edge of the wrapper into the groove, joining a lower edge of the Opanka stitched impression gasket.
- 8. The method of claim 1 further comprising sewing the upper assembly to the outsole by using Opanka stitch series to form a double seam Opanka stitch series.
- 9. The method of claim 8 wherein the sewing is hand-made.
- 10. The method of claim 1 wherein the gasket is made of the same material as the upper assembly, the outsole is made of polyurethane.
- 11. The method of claim 1 further providing a walking surface layer having a notch line across in an outsole peripheral region, the notch line accommodating the wrapper around an outsole heel region and an outsole front region.
- 12. The method of claim 1 further comprising pre-punching the outsole for sewing.
- 13. A footwear comprising:an upper assembly including: a gasket; and, a fitted upper including a vamp is attached to a socklining, wherein the fitted upper is attached to the gasket; an outsole including a recessed region and a groove region formed around a periphery of the outsole, the outsole attached to the upper assembly; and wherein a lower edge of an Opanka stitched gasket is inserted into the groove and the outsole is covered with a wrapper.
- 14. The footwear of claim 13 wherein the gasket is close-seamed around a perimeter of the socklining and a groove molded is provided around an outsole peripheral region.
- 15. The footwear of claim 13 wherein a cushioning layer is adhesively attached within the recessed region of the outsole.
- 16. The footwear of claim 13 wherein the upper assembly is sewed to the outsole by using Opanka stitch series.
- 17. The footwear of claim 13 wherein a heel is provided in the outsole.
- 18. The footwear of claim 13 wherein the impression gasket using Opanka stitch series is stitched to an outsole perimeter rim.
- 19. The footwear of claim 13 wherein a wrapper covers an outsole heel region.
- 20. The footwear of claim 19 an upper edge of the wrapper is inserted into the groove joining a lower edge of the Opanka stitched impression gasket.
- 21. The method of claim 13 wherein the upper assembly is hand sewed to the outsole by using Opanka stitch series wherein the upper assembly to the outsole forms a double seam Opanka stitch series, the double seam including an upper Opanka stitch series and a side Opanka stitch series.
- 22. The method of claim 19 wherein a walking surface layer having a notch line across in an outsole peripheral region is provided, the notch line accommodating the wrapper around an outsole heel region and an outsole front region.
- 23. The method of claim 13 wherein the outsole is pre-punched for sewing.
US Referenced Citations (10)