Method of making footwear

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
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Number Date Country
30 43 425 Jul 1982 DE
9515094 Jun 1995 WO