Information
-
Patent Grant
-
6295679
-
Patent Number
6,295,679
-
Date Filed
Tuesday, December 21, 199925 years ago
-
Date Issued
Tuesday, October 2, 200123 years ago
-
Inventors
-
Original Assignees
-
Examiners
Agents
-
CPC
-
US Classifications
Field of Search
US
- 036 115
- 012 142 P
- 280 1112
- 280 11221
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International Classifications
-
Abstract
A method of making footwear. The method is suited generally to making skate boots and, more specifically, to making ice skates and in-line roller skates. The method comprises the steps of: (a) positioning a skin assembly over a structural inner shell component; (b) adhesively affixing the skin assembly to the structural inner shell component by applying pressure on the entire surface of the skin assembly; (c) perforating lace eyelets through the structural inner shell and the skin assembly; and (d) mounting a toe box and a tongue to the front portion of the structural inner shell component.
Description
FIELD OF THE INVENTION
The invention relates to a method of making footwear and more particularly for making a skate boot suitable for use on ice skates and for use on in-line roller skates. The invention also relates to a method of making boots and shoes.
BACKGROUND OF THE INVENTION
Traditionally, shoes, boots or skate boots are fabricated by shaping the footwear over a last. A last is a three-dimensional shape of the inside cavity of a boot or shoe, and which may be mounted upside down for ease of manipulation and assembly of the components making up the footwear. A pre-assembled fabric component is positioned over the last to be formed to the shape of the desire finished product. The pre-assembled component consists of various layers of fabric and/or leather material sewn and/or glued together, and sometimes reinforced with rigid components, which have the general configuration of the finished product but have not yet been shaped to the final form of the footwear. The rigidity and flexibility characteristics of the footwear are achieved by interposing the various layers of materials having suitable mechanical properties in specific regions of the pre-assembled component. An insole is positioned on the top portion of the last, which represents the inside bottom part of the footwear and the pre-assembled fabric component is positioned over the last. The fabric components are stretched over the last and pushed over the insole to conform to the specific shape of the last and then nailed or tacked, and glued to the insole to maintain the desired shape. Once the upper part of the footwear is completed, an outsole is glued over the preliminary assembly to finish the footwear. For skates, an accessory such as an ice runner holder or an in-line roller chassis is mounted to the outsole to complete the skate.
This type of process is extensively used in the shoemaking industry. It generates a good product but it has many disadvantages. For instance, the number of parts involved in the process can be staggering; a conventional ice skate for hockey may have some eighty parts to be assembled and shaped over the last. As a consequence, the manufacturing process is lengthy and complex. The nature of the assembly of part is inherently labor intensive and slow as there are many manual tasks to be performed and many steps are necessary to complete the footwear. The considerable number of elements to be assembled entails an increased risk of errors, particularly in the alignment of the various elements of the pre-assembled component. Also, the process of pushing and stretching the material over the last may not always provide a good alignment of the pre-assembled component over the insole. The accumulation of material between the insole and the outsole during the pulling and stretching step creates varations of the distance between the two parts, which are not desirable. The centering of the outsole with the formed pre-assembled component of the footwear become more difficult. The number of components involved in the process and the increased probability of misalignment of the various components, contribute at increasing the number of rejected shoes, boots or skates in the manufacturing process or at least, decrease the quality of the overall production. This traditional process of making footwear also requires several molds and cutting dies to produce all the parts necessary for making the footwear.
In an effort to reduce the number of components of footwear and specifically sports footwear like skiing and skating boot, these are increasingly made of a plastic molded shell and sometimes of a combination of a rigid with softer fabric components. U.S. Pat. No. 4,777,741 to Laurence discloses an article of footwear such as a shoe or skate, which comprises a molded exterior lower shell and a semi-rigid molded tongue portion to dose the footwear. U.S. Pat. No. 4,509,276 to Bourque discloses a skate boot made of a lower exterior molded rigid plastic portion and intermediate and upper portions made of pliable material to allow forward flexure and torsional flexibility in the ankle area. Finally U.S. Pat. No. 5,339,544 to Alberto discloses a footwear comprising a first component made of a single piece of molded synthetic material having a rear upper portion which extend from an insole, and a second component made of soft material having a front upper portion and a lining. The two components are connected together with the lining of the second component inserted inside the rear portion of the first component.
These designs effectively reduce the number of components utilized in the manufacturing process of a footwear or skate. However, the final product issued from any of these methods of making footwear, whether a shoe, a boot, or a skate, has the appearance of a plastic shell. Consumers are not particularly fond of the plastic shell look for footwear and show a preference to fabric or leather footwear product.
Thus there is a need in the industry for a method of making a footwear which controls the end shape and volume of the footwear and also utilizes fewer components and fewer steps than the traditional lasting method yet provides a final product that has the appearance of a footwear made with the traditional lasting method.
OBJECTS AND STATEMENT OF THE INVENTION
It is thus an object of the invention to provide a method of making footwear that uses fewer components and fewer steps than the traditional lasting method.
It is another object of the invention to provide a method of making footwear that has the appearance of footwear made with the traditional lasting method.
It is another object of the invention to provide a method of making footwear that is cost effective.
It is another object of the invention to provide a method of making footwear that provides consistency of assembly between parts and reduces rejects in the manufacturing process.
It is a further object of the invention to provide a method of making footwear which enable automation of the manufacturing process.
As embodied and broadly described herein, the invention provides a method of making a footwear comprising the steps of:
(a) positioning a skin assembly over an inner shell component;
(b) adhesively affixing said skin assembly to said inner shell component by applying pressure on the entire surface of said skin assembly;
(c) perforating lace eyelets through said inner shell and said skin assembly; and,
(d) mounting a toe box and a tongue to the front portion of said inner shell component.
Advantageously, the method further comprises the steps of mounting a ground-engaging supporting element to the bottom portion of the inner shell component and inserting a footbed into the footwear for cushioning the bottom portion of the footwear, the same method applies for making an ice skate and an in-line roller skate.
Other objects and features of the invention will become apparent by reference to the following description and the drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
A detailed description of the preferred embodiments of the present invention is provided herein below, by way of example only, with reference to the accompanying drawings, in which:
FIG. 1
is a top plan view of a skin for a footwear constructed according to the invention;
FIG. 2
is a top plan view of the skin shown in
FIG. 1
with some decorative components added;
FIG. 3
is a top plan view of a second embodiment of a skin for the footwear constructed according to the invention;
FIG. 4
is a top plan view of the skin shown in
FIG. 3
with some decorative components added;
FIG. 5
is a perspective view of a skin assembly for the footwear constructed according to the invention;
FIG. 6
is a perspective view of a molded inner shell component of the footwear constructed according to the invention;
FIG. 7
is a perspective view illustrating the assembly of the skin assembly and the molded inner shell component of the footwear constructed according to the invention;
FIG. 8
is a perspective view illustrating the application of pressure to the surface of the skin assembly and the molded inner shell component according to the invention;
FIG. 9
is a perspective view of an apparatus used to apply pressure to a skin assembly as depicted in
FIG. 8
according to the invention;
FIG. 10
is a perspective view of a completed boot constructed according to the invention;
FIG. 11
is a perspective view of a second embodiment of a skin assembly for the footwear constructed according to the invention;
FIG. 12
is a perspective view of a second embodiment of a molded inner shell component of a footwear constructed according to the invention;
FIG. 13
is a perspective view of the assembly of the skin assembly and the molded inner shell component shown in
FIGS. 11 and 12
;
FIG. 14
is a perspective view of the application of pressure to the surface of the skin assembly and the molded inner shell component shown in
FIGS. 11 and 12
of a footwear constructed according to the invention;
FIG. 15
is a perspective view of a second embodiment of a footwear constructed according to of the invention; and
FIG. 16
is a perspective view of a third embodiment of a molded inner shell component of a footwear constructed according to the invention;
In the drawings, preferred embodiments of the invention are illustrated by way of examples. It is to be expressly understood that the description and drawings are only for the purpose of illustration and are an aid for understanding. They are not intended to be a definition of the limits of the invention.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
FIG. 1
illustrates a skin
20
, which has been cut from a flat piece of fabric material or leather material. The cutting operation of skin
20
may be fully automated since it is performed on a flat surface. Skin
20
comprises a right quarter
22
and a left quarter
24
linked together by a bridge portion
26
. Each quarter
22
and
24
further comprises half-tendon guards
23
and
25
respectively. The heel portions
42
and
43
of each quarter
22
and
24
is given a slightly curvilinear profile to enable the formation of a rounded heel counter later on in the fabrication process of the footwear. Heel portions
42
and
43
are also provided with indentations
45
to ease the formation of a rounded heel counter.
FIG. 2
illustrates a skin
20
to which decorative components
31
and
32
were added. Decorative components
31
and
32
are assembled to skin
20
by automated process such as automatic stitching or welding. The automation of this process is again simplified because it is done on a flat surface. Components
32
may be stitched, welded or glued to components
31
in a first step then the assembly of components
31
and
32
may be assemble to skin
20
in a final step. Of course, the assembly of the various decorative components may be performed in any order to adapt to the specific physical requirements of available manufacturing equipment. It can also be done all at once. The flexibility of fabrication of the skin assembly is due primarily to the fact that all the operations, including the cutting of skin
20
, are performed while the fabric material is laying down flat.
FIG. 2
illustrates the decorative components
31
and
32
stitched to skin
20
as shown by the stitching lines
33
and
34
by way of example only. Decorative components
31
and
32
could be welded or glued or otherwise affixed to skin
20
in any known fashion without departing from the principle of assembling as many if not all skin components while the various pieces are flat and therefore easy to work. The process is thereby simplified and can readily be automated.
FIGS. 3 and 4
illustrate a variation of a skin
20
. The right quarter
22
and the left quarter
24
are, in this case, linked together at tendon guard
37
, which is the equivalent of the assembly of half-tendon guard
23
and
25
, and at the rear portions
38
and
39
of each quarter
22
and
24
. Half-bridge portions
26
A and
26
B are provided at the lower part of each quarter
22
and
24
, to be used later on to form the skin assembly of the footwear. In this variation the heel portions
42
and
43
are separated by a cut-out portion
46
which has curvilinear walls to enable the formation of a rounded heel counter as previously mentioned when referring to slightly curvilinear profile of heel portions
42
and
43
shown in
FIGS. 1 and 2
. Heel portions
42
and
43
are also provided with indentations
45
to facilitate the formation of a rounded heel counter.
FIGS. 3 and 4
illustrate each quarter
22
and
24
having a similar profile to quarters
22
and
24
of skin
20
shown in
FIG. 1 and 2
.
FIG. 3
illustrates a skin
20
made from a single flat piece of fabric or leather material whereas
FIG. 4
illustrates a skin
20
with decorative components
31
and
32
added in the same fashion as previously described in FIG.
2
.
Skin
20
is cut, as its profile indicates, to conform to the general shape of a boot. Skin
20
may have a variety of shapes and profiles to conform to different types of footwear. For example, a low-cut boot would not feature a tendon guard
37
and its skin would be designed without one. Similarly, a shoe type footwear as shown in
FIGS. 11
to
15
features a skin
20
which is very low and barely reaches the foot's malleollis. Shown in dotted lines is a variation of a footwear having higher sides which cover the foot's malleollis.
The skin
20
shown in
FIG. 2
will be used as an example to illustrated the process of making a footwear according to the invention. Other types of skin configuration and pattern, such as those shown in
FIGS. 1
,
3
and
4
could be used. As a further variation of skin
20
, quarters
22
and
24
may be two single pieces joined together by a third piece covering bridge portion
26
.
Referring now to
FIG. 5
, the flat skin
20
has been folded at the bridge portion
26
and sewn at the rear edges of cuff portions
23
and
25
and at heel portions
42
and
43
to form a skin assembly
30
. The resulting seem
44
may be covered by an additional decorative piece if desired (not shown). As previously mentioned, when both heel portions
42
and
43
are sewn together, they form a rounded heel counter
48
which better conforms to the contours of the foot. Indentations
45
are also folded to form a round edge at the bottom portion of heel counter
48
.
The skin assembly
30
, once formed, preferably has openings
49
and
50
in its bottom portion, which provide direct access to the internal structure of the footwear.
FIG. 6
illustrates a molded inner shell
52
having the general outer shape of a boot. Inner shell
52
is preferably made of injected thermoplastic. It comprises a heel counter
58
and a tendon guard
60
, a medial quarter
54
and a lateral quarter
56
of variable thickness extending longitudinally from heel counter
58
to the front of inner shell
52
. Quarters
54
and
56
each have an edge
63
, which together define the main opening for insertion and removal of the foot. A sole
64
extends the entire length of inner shell
52
. Inner shell
52
is the central component of the footwear to be constructed. It is molded to conform generally to the shape of the foot and the shape given to inner shell
52
thereby dictates the general shape of the footwear. Inner shell
52
further provides the supporting structural element of the footwear. Since inner shell
52
is made and manufactured by injection molding, variation of its wall thickness is easily achieved. By strategically varying its wall's thickness, inner shell
52
may be provided with areas, which are more or less rigid and more or less flexible, as desired, depending on the purpose of the final product. For instance, an ice skate molded inner shell would have to have more overall rigidity than shoes for football or plain running shoes.
Variations of the materials employed or combining two or more materials are other methods of changing and varying the physical properties of inner shell
52
and therefore of the final footwear so constructed. Compatible materials may be manufactured by successive injections into the same mold. For example, an inner shell
52
may be molded with two materials: a more rigid material in areas where more support is necessary combined with a softer material in areas requiring more flexibility. Also, in the area corresponding generally to edges
63
where the lace eyelets will eventually be positioned, a slightly more resilient material may be used or the thickness of the material can be marginally increased in an effort to reinforce this locally solicited area.
Sole
64
may be substantially flat or it may comprise, as shown in
FIG. 6
, bottom projections
66
and
68
as means for attachment- to a ground engaging supporting element such as an ice runner or an in-line roller chassis. Projection
66
and
68
are designed to mate the opposing surface of the ground-engaging supporting element. This arrangement is shown as an example only since there are many possible variations. Sole
64
also comprises positioning pins
81
,
82
and
83
adapted to align skin assembly
30
with inner shell
52
.
Please note that the frontal portion of inner shell
52
in the toe area
71
is open. Although not necessary, it allows the installation of a toebox/tongue assembly as shown in FIG.
10
. As a variation, Inner shell
52
could easily be closed at the toe area
71
so that the toe box would be integral with inner shell
52
.
The configuration of inner shell
52
and its inherent rigidity eliminates the need to use a last to shape the skin assembly
30
. As shown in
FIGS. 7 and 8
, skin assembly
30
is positioned over inner shell
52
. The general shape of skin assembly
30
ensures a good alignment between the two components. The alignment of openings
49
and
50
of skin assembly
30
with positioning pins
81
,
82
and
83
provides increased accuracy of alignment. As best shown in
FIG. 8
, positioning pins
81
,
82
and
83
correspond to the outer edges of openings
49
and
50
thereby ensuring proper alignment of the two components. Other means of alignment are possible without the use of opening
49
and
50
. Other Positioning pins (not shown) could be added to inner shell
52
, which could be inserted into corresponding apertures of skin assembly
30
to align the two components
30
and
52
.
Prior to positioning the skin assembly
30
over inner shell
52
, glue must be applied either to the interior surface of skin assembly
30
or the exterior surface of inner shell
52
. Once skin assembly
30
is in place, pressure is applied to the entire surface of skin assembly
30
as depicted by arrows
70
A and
70
B thereby solidly gluing the two components together. The skin assembly
30
will conform exactly to the, shape of inner shell
52
without the use of a form or last. The only rigid shape required for the process is the inner shell
52
itself.
FIG. 9
illustrates an example of an apparatus
100
, which may be used to evenly apply pressure to the entire surface of skin assembly
30
. Other means of applying even pressure to skin assembly
30
are possible without departing from the basic method hereby described. The clamping apparatus
100
shown in
FIG. 9
, comprises a supporting frame
102
having an upper traverse
103
, and two pillars
105
and
106
joined together at mid-height by an apron
104
. Control buttons are usually positioned on apron
104
for ease of access. Apron
104
surrounds a movable shell-supporting member
108
is having the general shape of an inner shell
52
and is mounted to a generally vertical hydraulic or pneumatic piston-cylinder
110
. A pair of clamps
112
and
113
are mounted to traverse
103
with struts
115
and are positioned directly above shell-supporting member
108
. Clamps
112
and
113
, each are provided with a bladder
117
consisting of an inflated flexible membrane and a fluid pressure delivery circuit (not shown). A pressure pad
120
having a general shape which substantially mates with the sole portion and the rear portion of inner shell
52
is located in between clamps
112
,
113
at the top portion of the clamping pair.
In operation, the assembly of inner shell
52
and skin assembly
30
are positioned on shell-supporting member
108
and the operator activates the apparatus
100
. The cycle of apparatus
100
begins with the activation and extension of piston-cylinder
110
, which raises shell-supporting member
108
and therefore, inner shell
52
and skin assembly
30
upwardly, as shown with
30
arrow “A”, in between the open pair of damps
112
,
113
. Shell-supporting member
108
travels up and reaches pressure pad
120
, at which point pressure builds up into piston-cylinder
110
to a set value and stops. The mating surface of pressure pad
120
and Shell-supporting member
108
thereby apply the initial pressure
70
A to the sole portion and the rear portion of skin assembly
30
onto inner shell
52
. Clamps
112
and
113
are then closed onto inner shell
52
and skin assembly
30
as shown with arrows “B”. With clamps
112
,
113
closed and locked over the assembly, bladders
117
are inflated by air or liquid injection, which forces the flexible membranes of bladders
117
to encircle each quarter
22
and
24
of skin assembly
30
and apply pressure
70
B of FIG.
8
. Pressure builds up inside inflated bladders
117
to a set value and the flexible membranes apply an even pressure
70
B to each quarter surface of skin assembly
30
. The pressure is maintained for a few seconds and then released. Clamps
112
and
113
open up and shell-supporting member
108
is lowered to its initial position by piston-cylinder
110
retracting. The two initial components
30
and
52
are properly glued and can be removed from shell-supporting member
108
.
To provide good adhesion between skin assembly
30
and inner shell
52
using damping apparatus
100
, a pressure build-up of about
30
PSI is contemplated. Such a pressure requires that inner shell
52
be properly supported by shell-supporting member
108
during the application of the pressure. To that effect, shell-supporting members
108
of different sizes are provided for each footwear sizes being produced. This ensures that inner shell
52
will not collapse or distort during the application of a pressure of this magnitude. However, a much lower pressure can be used which will provide adequate adhesion. The pressure required for providing good adhesion between skin assembly
30
and inner shell
52
, is a function of the rigidity of skin assembly
30
's material, the complexity of the shape of the footwear. To improve and accelerate the gluing process, shell-supporting member
108
may be provided with heating and cooling channels (not shown). Depending on the type of glue being used, the part may be heated and then cooled to increase the efficiency of the process.
The manufacturing process is no longer a series of consecutive assembly steps which occur over the last of the footwear but is simply a joining together of two prefabricated items manufactured separately using different methods. This manufacturing process increases the possibilities of automation, as each item is fabricated separately and brought together at the end of the production cycle. Furthermore, the fabrication of skin assembly
30
from a flat skin
20
reduces the possibilities of errors and likewise, the injection molding of inner shell
52
is not conducive to errors. Once the mold is optimal, each part being produced from the mold is unlikely to substantially vary. The joining of the two components as previously explained only requires a minimal control of the alignment of the two prefabricated parts. This modular approach of the manufacturing process leads to a decrease in rejected items during production, a better control of the end shape and volume of the footwear and of course to a decrease in overall cost as production is rationalized.
As shown in
FIG. 10
the remaining steps in the fabrication of the footwear
75
, are first, to punch lace eyelet holes
62
along the edges
63
using a automatic punch which guides itself along edges
63
and rapidly punches a series of eyelets
62
equally spaced apart. The following step is to install a toe box
76
and a tongue
78
or preferably, in the spirit of a modular approach, a toe-box/tongue assembly
79
, which covers the frontal portion of the footwear
75
. Toe-box/tongue assembly
79
is also manufactured separately and brought to the production line at the end of the production cycle only. Tongue
78
is sewn or glued to toe-box
76
. Toe-box
76
is glued to the upper frontal portion of sole
64
and can also be glued or sewn to the frontal portions
80
of each quarter
22
/
56
and
24
/
54
. A ground engaging supporting element such as an ice runner holder, an in-line roller chassis or any type of sole suitable for football, baseball, soccer or golf shoes is installed on the bottom of footwear
75
.
A suitable liner
51
is finally installed within the inner shell
52
of footwear
75
. The liner is preferably made of pre-formed foam material extending along each quarter
54
and
56
and around the heel counter region. A footbed (not shown) adapted to the contours of the foot is also positioned at the bottom of inner shell
52
to provide the required level of comfort to the footwear
75
.
FIGS. 11
to
15
illustrate the various components and steps necessary to fabricate a low-cut footwear according to the same basic method.
FIG. 11
shows a skin assembly
200
, which has been folded, from a previously flat skin and sewn at the rear edges of each quarter
203
and
204
. A decorative component
201
was assembled to the flat skin by automated process as previously described. Skin assembly
200
presents a low cut profile. The upper edges
206
are much lower than skin assembly
30
shown in
FIG. 5
as it extends nearly below the malleolis of the foot.
FIG. 12
shows a molded inner shell
210
preferably made of injected thermoplastic, which also presents a low-cut profile having the general outer shape of a shoe. Inner shell
210
comprises a heel counter
212
, a medial quarter
214
and a lateral quarter
215
of variable thickness extending longitudinally from heel counter
212
to the front portion of inner shell
210
. Edges
218
define the main opening for insertion and removal of the foot, and a sole
220
extends the entire length of inner shell
210
. Inner shell
210
is the central component of the shoe to be constructed. It is molded to generally conform to the shape of the foot and its shape dictates the general shape of the footwear. Inner shell
210
further provides the supporting structural element of the footwear. As previously described, variations of inner shell
210
's wall thickness, variations of materials, or combination of two or more materials are methods of changing and adapting the physical properties of inner shell
210
and of the footwear so constructed for its intended use.
It must be understood that the general outline of inner shell
210
may take on a variety of shapes such as that of a boot as depicted by the dotted lines
211
. Skin assembly
200
may or may not conform to the boot outline
211
. As a variant, skin assembly may cover only partially inner shell
210
leaving portions of inner shell
210
exposed, giving the footwear a different look. Boot outline
211
may be a hiking boot or a work boot. In the later instance, a steel toe cap would be provided.
Sole
220
is substantially flat and adapted to accommodate a variety of outsoles. The Outsole of the footwear may feature spikes for football, baseball or soccer shoes or studs for golf or track and field shoes. Sole
220
may feature apertures provided to insert metal or plastic studs or spikes.
As shown in
FIGS. 13 and 14
, skin assembly
200
is positioned over inner shell
210
after a layer of glue has been applied to either the inner surface of skin assembly
200
or to the outer surface of inner shell
210
or both. The general shape of skin assembly
200
ensures a good alignment between the two components. The alignment accuracy may increase with positioning pins as shown in FIG.
6
. Other means of alignment are also possible as previously mentioned. Once skin assembly
200
is in place, pressure is applied to the entire surface of skin assembly
200
as depicted by arrows
70
A and
70
B thereby solidly gluing the two components together. A clamping apparatus
100
as shown in
FIG. 9
can be used to provide the necessary pressure. The shell-supporting member
108
and the pressure pad
120
simply have to be modified to accommodate the specific shape of inner shell
210
.
As shown in
FIGS. 15 and 16
, lace eyelets
208
are punched into the assembly of skin
200
and inner shell
220
along each edge
218
. A toe box
230
and a tongue
231
or preferably, a toe-box/tongue assembly
232
, which covers the frontal portion of the footwear
250
are installed. Toe-box,tongue assembly
232
is of course, manufactured separately and brought to the production line at the end of the production cycle only. Tongue
231
is sewn or glued to toe-box
230
. Toe-box
230
is glued to the upper frontal portion of sole
220
and can also be glued or sewn to the frontal portions
235
of each quarter
203
/
214
and
204
/
215
. Finally, a pair of outsoles
222
and
223
, which are ground engaging supporting elements, are affixed to the bottom of footwear
250
. As shown in
FIG. 16
, a single outsole
225
extending the entire length of footwear
250
can be used as well.
The above description of preferred embodiments should not be interpreted in a limiting manner since other variations, modifications and refinements are possible within the spirit and scope of the present invention. The scope of the invention is defined in the appended claims and their equivalents.
Claims
- 1. A method of making footwear comprising the steps of:(a) positioning a skin assembly over a structural molded inner shell component, said structural molded inner shell component having a sole portion, a lateral quarter, and a medial quarter, each quarter projecting upwardly from each side of said sole portion; (b) adhesively affixing said skin assembly to said structural molded inner shell component by applying pressure on the entire surface of said skin assembly; (c) perforating lace eyelets through said structural molded inner shell and said skin assembly; and (d) mounting a toe box and a tongue to the front portion of said structural molded inner shell component.
- 2. The method of making footwear as defined in claim 1 further comprising the step of mounting a ground-engaging supporting element to the sole portion of said structural molded inner shell component.
- 3. The method of making footwear as defined in claim 2 further comprising the step of inserting a footbed into said footwear for cushioning the bottom portion of said footwear.
- 4. The method of making footwear as defined in claim 1 wherein said perforating of lace eyelets is done with a punch.
- 5. The method of making footwear as defined in claim 1 wherein said skin assembly is cut from a flat piece of material and folded to conform to the general shape of said structural molded inner shell component.
- 6. A method of making an ice skate comprising the steps of:(a) positioning a skin assembly over a structural molded inner shell component, said structural molded inner shell component having a sole portion, a lateral quarter, and a medial quarter, each quarter projecting upwardly from each side of said sole portion; (b) adhesively affixing said skin assembly to said structural molded inner shell component by applying pressure on the entire surface of said skin assembly; (c) perforating lace eyelets through said structural molded inner shell and said skin assembly; and (d) mounting a toe box and a tongue to the front portion of said structural molded inner shell component.
- 7. The method of making an ice skate as defined in claim 6 further comprising the step of mounting an ice runner and runner holder assembly to the sole portion of said structural molded inner shell component.
- 8. The method of making an ice skate as defined in claim 7 further comprising the step of inserting a footbed into said ice skate for cushioning the bottom portion of said ice skate.
- 9. The method of making an ice skate as defined in claim 6 wherein said perforating of lace eyelets is done with a punch.
- 10. The method of making an ice skate as defined in claim 6 wherein said skin assembly is cut from a flat piece of material and folded to conform to the general shape of said structural molded inner shell component.
- 11. A method of making an in-line roller skate comprising the steps of:(a) positioning a skin assembly over a structural molded inner shell component, said structural molded inner shell component having a sole portion, a lateral quarter, and a medial quarter, each quarter projecting upwardly from each side of said sole portion; (b) adhesively affixing said skin assembly to said structural molded inner shell component by applying pressure on the entire surface of said skin assembly; (c) perforating lace eyelets through said structural molded inner shell and said skin assembly; and (d) mounting a toe box and a tongue to the front portion of said structural molded inner shell component.
- 12. The method of making an in-line roller skate as defined in claim 11 further comprising the step of mounting an in-line roller chassis to the sole portion of said structural molded inner shell component.
- 13. The method of making an in-line roller skate as defined in claim 12 further comprising the step of inserting a footbed into said skate for cushioning the bottom portion of said skate.
- 14. The method of making an in-line roller skate as defined in claim 11 wherein said perforating of lace eyelets is done with a punch.
- 15. The method of making an in-line roller skate as defined in claim 11 wherein said skin assembly is cut from a flat piece of material and folded to conform to the general shape of said structural molded inner shell component.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2256917 |
Dec 1998 |
CA |
|
US Referenced Citations (13)
Foreign Referenced Citations (2)
Number |
Date |
Country |
30 43 425 |
Jul 1982 |
DE |
9515094 |
Jun 1995 |
WO |