CA2193660A1 - Skate boot with composite sole - Google Patents
Skate boot with composite soleInfo
- Publication number
- CA2193660A1 CA2193660A1 CA 2193660 CA2193660A CA2193660A1 CA 2193660 A1 CA2193660 A1 CA 2193660A1 CA 2193660 CA2193660 CA 2193660 CA 2193660 A CA2193660 A CA 2193660A CA 2193660 A1 CA2193660 A1 CA 2193660A1
- Authority
- CA
- Canada
- Prior art keywords
- ice
- sole
- recited
- hockey skate
- fibers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000002131 composite material Substances 0.000 title abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 27
- 239000011347 resin Substances 0.000 claims abstract description 27
- 239000000835 fiber Substances 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 24
- -1 polypropylene Polymers 0.000 claims abstract description 10
- 239000004952 Polyamide Substances 0.000 claims abstract description 5
- 239000004698 Polyethylene Substances 0.000 claims abstract description 5
- 239000004743 Polypropylene Substances 0.000 claims abstract description 5
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims abstract description 5
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims abstract description 5
- 229920002647 polyamide Polymers 0.000 claims abstract description 5
- 229920000573 polyethylene Polymers 0.000 claims abstract description 5
- 229920001155 polypropylene Polymers 0.000 claims abstract description 5
- 239000011521 glass Substances 0.000 claims abstract 4
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims 12
- 229920001187 thermosetting polymer Polymers 0.000 claims 3
- 239000004593 Epoxy Substances 0.000 claims 2
- 239000004917 carbon fiber Substances 0.000 abstract description 5
- 229920000049 Carbon (fiber) Polymers 0.000 abstract description 2
- 229920000271 Kevlar® Polymers 0.000 abstract description 2
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 abstract description 2
- 229920000571 Nylon 11 Polymers 0.000 abstract description 2
- 229920000299 Nylon 12 Polymers 0.000 abstract description 2
- 229920002292 Nylon 6 Polymers 0.000 abstract description 2
- 229920002302 Nylon 6,6 Polymers 0.000 abstract description 2
- 229920006397 acrylic thermoplastic Polymers 0.000 abstract description 2
- 239000003822 epoxy resin Substances 0.000 abstract description 2
- 239000004761 kevlar Substances 0.000 abstract description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 abstract description 2
- 229920000647 polyepoxide Polymers 0.000 abstract description 2
- 229920001225 polyester resin Polymers 0.000 abstract description 2
- 239000004645 polyester resin Substances 0.000 abstract description 2
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 abstract description 2
- 239000004634 thermosetting polymer Substances 0.000 abstract description 2
- 239000012783 reinforcing fiber Substances 0.000 abstract 1
- 239000003365 glass fiber Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 241001136792 Alle Species 0.000 description 1
- 101150042190 Slc22a17 gene Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000812633 Varicus Species 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000012567 medical material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000010107 reaction injection moulding Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
- 238000007666 vacuum forming Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
- A43B5/16—Skating boots
- A43B5/1641—Skating boots characterised by the sole ; characterised by the attachment of the skate
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
A composite material is used for the sole of the boot of an ice skate, in-line skate, or roller skate. The material is a thin layer of resin and reinforcing fibers. Thermoset resins such as polyester resin or epoxy resin, or thermoplastic resins such as polyamides (e.g. Nylon 6, Nylon 6-6, Nylon 12, Nylon 11), acrylics, ABS, polypropylene, polyethylene, etc., may be used. The fibers, such as glass, Kevlar TM or carbon fibers, are encapsulated in the resin in order to increase the flex modulus or stiffness of the sole. The orientation of the fibers and the percentage of fiber content versus resin content will dictate the final rigidity. The fibers can be in short lengths oriented randomly in the resin, or there can be longer strands, either unidirectionally oriented in the resin, or layered or woven to create a bi-directional structure. A preferred material is BioMechanical Composites' Novotek HW-5050 TM material.
Description
'!''''''~'1~936~0 ~WO 96/OOS12 ' PCT/CA95100389 SKATE BOOT WITH COMPOSITE Sl~l F
TECHNICI~I FIFI r) This invention relates to skate boots, and particularly to a skate boot having a culllpos;Lt: material sole, of a resin reinforced with fibers.
5 Although primarily intended for ice skates, the skate boot could also be used for in-line skates or roller skates.
~A ~yt:l~Oul~EC
In conventional skate boots, the rnaterial used for the sole or outsole of the boot is TPR (Lllt:llllU,UI~Dlil, rubber). Many years of tradition and 10 gradual evolution have led to this becoming the almost universal choice of skate boot manufacturers. The sole is designed to provide an interface between the sewn boot and the ice skate blade holder or in-line skate chassis. It provides structure to which the materials of the upper can be attached. It does not provide a great dleal of structural support, and is in fact soft and flexible.
In view of the general suitability of TPR, there has been little incentive to innovate. It has hitherto been thought that TPR was clearly the best material, perhaps partially because it is vastly better than materials used in older skate boots.
However, TPR does have the disadvantage of being solll~Jllal 20 energy absorbent or "spongy". In ice skating of hockey, especially at the plurt:sD;unal or serious amateur level, this aLDulbency is IJ"-'~ aLle, since itsoftens the "feel" of the ice, and reduces the efficiency of energy transfer from the skater's legs and feet through the boot to the blade and ice surface. The TPR poses a problem when all~r",uLi"g to control the energy llallDIlliLlt:d from25 the musculature during the skating stride, and in feeling the ground reaction forces for balance and skating control.
The inventor has l~coy"i~ed that a thinner, less spongy sole would be desirable, to improve the energy transfer and to provide the skater with better ice contact and control, particularly during tight turns and the like.
KC~ kl~.~ \ILL:~rlL ~ U l : 1:3- ~J-~ti : I ~ JDt:LA(iAI ~11~ 1 I I.~L-- +~'J ~J :Wf3U~
TECHNICI~I FIFI r) This invention relates to skate boots, and particularly to a skate boot having a culllpos;Lt: material sole, of a resin reinforced with fibers.
5 Although primarily intended for ice skates, the skate boot could also be used for in-line skates or roller skates.
~A ~yt:l~Oul~EC
In conventional skate boots, the rnaterial used for the sole or outsole of the boot is TPR (Lllt:llllU,UI~Dlil, rubber). Many years of tradition and 10 gradual evolution have led to this becoming the almost universal choice of skate boot manufacturers. The sole is designed to provide an interface between the sewn boot and the ice skate blade holder or in-line skate chassis. It provides structure to which the materials of the upper can be attached. It does not provide a great dleal of structural support, and is in fact soft and flexible.
In view of the general suitability of TPR, there has been little incentive to innovate. It has hitherto been thought that TPR was clearly the best material, perhaps partially because it is vastly better than materials used in older skate boots.
However, TPR does have the disadvantage of being solll~Jllal 20 energy absorbent or "spongy". In ice skating of hockey, especially at the plurt:sD;unal or serious amateur level, this aLDulbency is IJ"-'~ aLle, since itsoftens the "feel" of the ice, and reduces the efficiency of energy transfer from the skater's legs and feet through the boot to the blade and ice surface. The TPR poses a problem when all~r",uLi"g to control the energy llallDIlliLlt:d from25 the musculature during the skating stride, and in feeling the ground reaction forces for balance and skating control.
The inventor has l~coy"i~ed that a thinner, less spongy sole would be desirable, to improve the energy transfer and to provide the skater with better ice contact and control, particularly during tight turns and the like.
KC~ kl~.~ \ILL:~rlL ~ U l : 1:3- ~J-~ti : I ~ JDt:LA(iAI ~11~ 1 I I.~L-- +~'J ~J :Wf3U~
2 1 ~3660 ll~letal ~o!es worc collaid~lu~, but have been ,e~u~ as bein~
undesirable dua to bein~ too cold for ice skates. Furthermore, ona3 deformed, a metal sole! rnay rernain deformed, rather than sprin~in~ back to its ori~inal shape.
It i$ known from NL-A-89016g03 to provide an ice skate with a sole comprised of an inflexible sheli including ssvf~ral laysrs of a f brefeinforced resin. Skates .L; such as that disclosed therein are intenr~d ~or use in sports sur,h as speed skatin~ and thu~, the ~ole~ thereof are d~signed so as to avoid torsional flexing of the scle about a lor~itudinal axis. Ice-hockey skates, heweYer, must provide for such torsional flexing af Ihe sole and thus a skate sole such as that discloaed in NL-A-89016903 is unu~ in such skates.
1~ , DISCLOSUF2F OF INVF~ lON
It is an object of the invention to provide a boct with a thinner and lightsr sole Ihan h~d hitherto been thought possiblc, without unde_:...Lle sacritices in rigidity or stilTness.
Afxordin~ly, in th~3 inverlbon, a thin, strong con~posite material is used for the sole of the skate ooot. The sole is a thin layer d ccmpcsite material, namely a mix of resin anri r~if~fblcif~ fibers, which provides a hi~h flex modulus and reates a hiah stiftness to wei~ht ratio. Thermcset or Il ,~r",epldiLic resins may be used, with glas~, carbon, Kevlar ~tradlsmark) or other suitable flbers.
Further teaturss ct the invenUon will be descfibed or will become epparent in th~ course cf the followin~ detailed u'~ n.
r;F DESCI~ lON OF DR4WIN~;S
In order that the invention may be more clearly u~ Id~l ~luu~!, the prsfarred ~ bc~ n~t thereof wili ncw be described in detail by u/ay of example, with referenc~ ~o the a~".yar,yin~ drawings, in which:
Fi~. 1 isap~-r -~h_view oFsniceska1ebootcfthepreferred~ budi.,,...Il, Fi~. 2 is a side YiSW cf the skate bcot, cut cpen to show ils cc;nstruction in the heel ~rea;
Fig. 3 is a ,~," ~ 'h~e viaw o~ the skatq boot, cut open in the toe area;
Fi~. 4 is a tront seciicnal view, explcded to shcw the varicus co,nponenl~
A~ NDEa SHEEr l~ P ~ " 2~ 93660 wo 96/00512 PCT/CAgS10038g Fig. 5 is a front sectional view similar to Fig. 6, but showing the various ~o,,,~uoue,,l~ rivetted together;
Fi~. 6 is perspective view of the sole of the skate boot; and Fi~. 7 is a plan view of the sole.
5 BFcT MODE FOR CARRYING OUT THF INVENTION
Referring to the drawings, the invention will now be described in greater detail. The following cles~ 6OIl refers to an ice skate boot, but the same principles will apply to boots for in-line skates or roller skates.
The skate has two main cu""uune~,L~, namely the boot 1 which 10 includes a sole 2, and the blade holder 3 which includes a blade or runner 4.The blade holder is fastened to the boot in conventional fashion, via rivets 5.
As can be seen best in Figs. 2, 3, 4 and 5, the boot includes an upper 6 wh.ch has a curled-under portion 7 which is po~iLio"ed above the sole 2. A plastic platform 8 is then po .;Liunecl above the curled-under portion and 15 the sole. On top of the plastic platform is a thin foam liner 9. The rivets 5 pass through the blade holder, the sole, the curled-under portion of the upper, the plastic platform, and the foam liner.
Figs. 6 and 7 show the preferred e",l,odi",~ "t of the sole 2 of the present invention. The sole is a thin layer of cOlll,uOaill: material, molded to the 20 shape as illustrated, with raised rib-like central contours 10.
The preferred co~,uu .;L~ material is a bi-d;~ Liolldl mix of acrylic Ll,e""opl~:.Lic resin, glass and carbon fibers, such as the Novotek HW-5050 ILladellldlh) material supplied by BioMechanical Co""uo:,;L~:, (a division of Medical Materials Corporation), of Camarillo, California, U.S.A.. A ~ue:~,;ricdLio 25 sheet is annexed hereto as Appendix A.
This material provides moderate stiffness, strength and durability with balanced .I;I~LiulldliLy. It has cross-woven upper and lower fdct:sheeL:~ of carbon and glass fibers, with a variable thickness core. In the preferred e",bc " "~"L, the thickness of the overall sheet is 1.4 mm. The material WO 96/~0512 PCTICA95/013389--decreases the overall weight of the skate by greater than 100 gm from about 1 000 gm.
Obviously, the thickness could be varied, as could the material itseif. Composite materials of resin and fibers, other than the Novotek material, certainly could be used. In general, II,e,llloD~L resins such as polyester resin or epoxy resin, or Lll~ ,u,ul~~lic resins such as polyamides (e.g. Nylon 6, Nylon 6-6, Nylon 12, Nylon 11), acrylics, ABS, polypropylene, polyethylene, etc., could be used. The fibers are encArslll~t~d in the resin in order to increase the flexmodulus or stiffness of the sole. The o,ie,,LaLiul~ of the fibers and the ptllLellLdu~e of fiber content versus resin content will dictate the final rigidity.
The fiber can be in short lengths oriented randomly in the resin, or there can be longer strands, either ullidi,~LLiullally oriented in the resin, or layered or woven to create a bi-dil~LLiol1dl structure.
Obviously, not al! LullllJ;IlaLioll~ of resins, fibers, olienLaLions lengths and pe:lL~llLa9~:~ will be suitable. Suitable palalll~::Lt:l~ must be selected through routine ~,ue:dlllesllLdLiùll, to achieve the desired light weight and degree of stiffness.
In the preferred manufacturing process using the Novotek material or other Lhtllllùuld~Lic" the material is first die-cut to the desired outer shape, then heated to facilitate molding, and then molded to its final, contoured shape.
The manufacture of the overall boot then continues according to conventional practices. For example, the material is bonded to the curled-under portion of the boot upper via a suitable adhesive. The plastic platform and the foam liner are then inserted, and the rivets are installed in conventional fashion.
As examples of alternative processes, hand iay up, com,u~ c,;ul) molding, resin transfer molding or reaction injection molding could be used for thermoset resins. For thellllupla~LiL resins, heat forming, vacuum forming, or injection molding could be used. The invention is not limited to use with these manufacturing processes only, but could conceivably be used in other manufacturing or assembly processes, known or as yet unknown.
2 1 9 3 6 6 ~
~1V0 96100512 PCT/CA95100389 Although the cOlll,uuailt: material is much thinner than soles in the prior art, and is not particularly rigid by itself, the result of the overall assembly is 8 skate boot which is surprisingly rigid in the sole area, which provides excellent force transfer from the skater's foot to the ice or other surface, and5 which is so",~ ,l lighter than conventional skates.
It will be ~.,u,u~ L~d that the above d~l,d,ulioll relates to the preferred t:",L " llellL by way of example only. Certain variations on the invention will be obvious to those kl,o~.led~edL,le in the field, and such obvious variations are within the scope of the invention as claimed, whether or not 10 expressly described herein.
The above desuli,ulion relates to ice skates, but it should be clear that the invention could be applied to in-line skates or conventional roller skates as well. Instead of rivetting an ice skate blade holder to the boot, a wheel carriage could be attached.
15 l~nusTRlAl APPLIcARll ITY
The invention provides a skate boot with a sole which is quite rigid, yet light in weight.
2 ~ 9 3 6 6 0 WO 96/00512 PCTIC~95100389 APPENDIX A
NOViETEKIM HW-505Q
.. :
Novetek HW-5050 uses a 50%/50% mix of carbon and glass fibers in two directions. It is suitsble for a" ' ns that require modest stiffness, strength, 5 and durability with balanced ~ .,Liol)dl;ly compared to other Novetek alternatives.
COMPOSITION
Fiber Alternating woven carbon and glass fibers in both 0~ and 90~
OriGllLaliul~
Resin Acrylic * Thickness o 35n - .105" (1.0mm- 2.5mm) available ~ Weight .028 - .081 oz/in2 (.123-.356 gm/cm2) * Surface Smooth. Tlall~lJal~ to fibers Size Cut to customer ~.e.,iricaLiol1s, minimum 25in2, maximum 200 in2 (minimum 160 cm2, maximum 1290 cm2) from sheet of 48nx36"(122x91 cm).
Cutting Use steel rule die, forged die, hard tooling, shear or saw Forming Heat to 350-390~F (1 75-200~C). Piace under 5-10 psi (35-70 KPa) for about 15 seconds Finishing Use general purpose grinding and polishing wheels on edge if required ALL~ III Chemical, adhesive, or Ill~;hallicdl aLLa~;lllllelll to other materials/devices SUESTITUTE SHEET (RIJLE 26) l i ~'P ~
~WO 96/00512 PCTICA95100389 Detaiied instructions, consultation, and technical support conccs~,~;~g specific p~uce~i"g requirements are available upon request.
NOVETEI~TM HW-5050 MATFPIAl rllOP~
Thickness - inches ~mm) ,035 0.4b .055 .065 .075 .085 .105 (.89) (1.14) (1.40) (1.65) (1.91) (2.16) (2.67) Areal Density oz/in' .028 .036 .043 .051 .059 .066 .081 gm/cm' .123 .158 .189 .224 .260 .290 .356 Tensile Load (ASTM D63F~) Ib 1160 1190 1215 1245 1275 1305 1365 Tensile Strength (ASTM D638) b/in2 33100 26400 22100 19100 17000 15400 13200 KPa x 105 2.28 1.82 1.52 1.32 1.17 1.06 .91 1 5 Tensile Modulus (ASTM D638) Ib/in~ x 10-5 2.6 2.4 2.2 2.0 1.8 1.6 1.2 KPa x 10' 1.79 1.65 1.2 1.38 1.24 1.10 .83 FIexural Rigidity Ib-in''' 12 23 40 62 88 118 184 N-cm' 344 660 1148 1780 2325 3387 5280 Flexural Strength (ASTM D790) Ib/in2 x 10-6 73700 63400 57200 53000 50000 47800 44000 KPa x 10-5 5.08 4.37 3.94 3.55 3.45 3.30 3.03 SUB;,T' i UT~ S' 'LET (RULE 26~
A~ ~ ' 2193660 Flexural Modulus (ASTM D790) Ib/in2 x 106 3,3 3.1 2.9 2.7 2.5 2.3 1.9 KPa x 10-7 2.28 2.14 2.00 1.86 1.72 1.59 1.31 5 Shear Strength (ASTM D2344) Ib/in2 4840 5000 5175 5340 5525 5650 6000 KPa x 10-~ 3.33 3.45 3.57 3.68 3.80 3.78 4.13 Flexural Fatigue 1 0 Stren~th at 1 x 1 o6 cycles ASTM D790, Method 1 Ib/in2 33100 28500 25800 23900 22500 21500 19800 KPa x 10-5 2.28 1.96 1.78 1.65 1.55 i.48 1.37 Izod Impact (ASTM D256) ft-lb/in 5.0 5.0 5.0 5.0 5.0 5.0 5.0 J/cm7 2.7 2.7 2.7 2.7 2.7 2.7 2.7 20 Creep Resistance at 70~/0 Ultimate, 120~F, 120 hr.
(ASTM D2990) in/in x 103 7.2 7.2 7.2 7.2 7.2 7.2 7.2 cm/cm x 103 7.2 7.2 7.2 7.2 7.2 7.2 7.2 Heat Distortion Temp .
~F 220 220 220 220 220 220 220 ~C 105 105 105 105 105 105 105 * Per unit width.
**Based upon product of effective elastic modulus and moment of inertia.
SUBSTITUTE SI~EET (RULE 26)
undesirable dua to bein~ too cold for ice skates. Furthermore, ona3 deformed, a metal sole! rnay rernain deformed, rather than sprin~in~ back to its ori~inal shape.
It i$ known from NL-A-89016g03 to provide an ice skate with a sole comprised of an inflexible sheli including ssvf~ral laysrs of a f brefeinforced resin. Skates .L; such as that disclosed therein are intenr~d ~or use in sports sur,h as speed skatin~ and thu~, the ~ole~ thereof are d~signed so as to avoid torsional flexing of the scle about a lor~itudinal axis. Ice-hockey skates, heweYer, must provide for such torsional flexing af Ihe sole and thus a skate sole such as that discloaed in NL-A-89016903 is unu~ in such skates.
1~ , DISCLOSUF2F OF INVF~ lON
It is an object of the invention to provide a boct with a thinner and lightsr sole Ihan h~d hitherto been thought possiblc, without unde_:...Lle sacritices in rigidity or stilTness.
Afxordin~ly, in th~3 inverlbon, a thin, strong con~posite material is used for the sole of the skate ooot. The sole is a thin layer d ccmpcsite material, namely a mix of resin anri r~if~fblcif~ fibers, which provides a hi~h flex modulus and reates a hiah stiftness to wei~ht ratio. Thermcset or Il ,~r",epldiLic resins may be used, with glas~, carbon, Kevlar ~tradlsmark) or other suitable flbers.
Further teaturss ct the invenUon will be descfibed or will become epparent in th~ course cf the followin~ detailed u'~ n.
r;F DESCI~ lON OF DR4WIN~;S
In order that the invention may be more clearly u~ Id~l ~luu~!, the prsfarred ~ bc~ n~t thereof wili ncw be described in detail by u/ay of example, with referenc~ ~o the a~".yar,yin~ drawings, in which:
Fi~. 1 isap~-r -~h_view oFsniceska1ebootcfthepreferred~ budi.,,...Il, Fi~. 2 is a side YiSW cf the skate bcot, cut cpen to show ils cc;nstruction in the heel ~rea;
Fig. 3 is a ,~," ~ 'h~e viaw o~ the skatq boot, cut open in the toe area;
Fi~. 4 is a tront seciicnal view, explcded to shcw the varicus co,nponenl~
A~ NDEa SHEEr l~ P ~ " 2~ 93660 wo 96/00512 PCT/CAgS10038g Fig. 5 is a front sectional view similar to Fig. 6, but showing the various ~o,,,~uoue,,l~ rivetted together;
Fi~. 6 is perspective view of the sole of the skate boot; and Fi~. 7 is a plan view of the sole.
5 BFcT MODE FOR CARRYING OUT THF INVENTION
Referring to the drawings, the invention will now be described in greater detail. The following cles~ 6OIl refers to an ice skate boot, but the same principles will apply to boots for in-line skates or roller skates.
The skate has two main cu""uune~,L~, namely the boot 1 which 10 includes a sole 2, and the blade holder 3 which includes a blade or runner 4.The blade holder is fastened to the boot in conventional fashion, via rivets 5.
As can be seen best in Figs. 2, 3, 4 and 5, the boot includes an upper 6 wh.ch has a curled-under portion 7 which is po~iLio"ed above the sole 2. A plastic platform 8 is then po .;Liunecl above the curled-under portion and 15 the sole. On top of the plastic platform is a thin foam liner 9. The rivets 5 pass through the blade holder, the sole, the curled-under portion of the upper, the plastic platform, and the foam liner.
Figs. 6 and 7 show the preferred e",l,odi",~ "t of the sole 2 of the present invention. The sole is a thin layer of cOlll,uOaill: material, molded to the 20 shape as illustrated, with raised rib-like central contours 10.
The preferred co~,uu .;L~ material is a bi-d;~ Liolldl mix of acrylic Ll,e""opl~:.Lic resin, glass and carbon fibers, such as the Novotek HW-5050 ILladellldlh) material supplied by BioMechanical Co""uo:,;L~:, (a division of Medical Materials Corporation), of Camarillo, California, U.S.A.. A ~ue:~,;ricdLio 25 sheet is annexed hereto as Appendix A.
This material provides moderate stiffness, strength and durability with balanced .I;I~LiulldliLy. It has cross-woven upper and lower fdct:sheeL:~ of carbon and glass fibers, with a variable thickness core. In the preferred e",bc " "~"L, the thickness of the overall sheet is 1.4 mm. The material WO 96/~0512 PCTICA95/013389--decreases the overall weight of the skate by greater than 100 gm from about 1 000 gm.
Obviously, the thickness could be varied, as could the material itseif. Composite materials of resin and fibers, other than the Novotek material, certainly could be used. In general, II,e,llloD~L resins such as polyester resin or epoxy resin, or Lll~ ,u,ul~~lic resins such as polyamides (e.g. Nylon 6, Nylon 6-6, Nylon 12, Nylon 11), acrylics, ABS, polypropylene, polyethylene, etc., could be used. The fibers are encArslll~t~d in the resin in order to increase the flexmodulus or stiffness of the sole. The o,ie,,LaLiul~ of the fibers and the ptllLellLdu~e of fiber content versus resin content will dictate the final rigidity.
The fiber can be in short lengths oriented randomly in the resin, or there can be longer strands, either ullidi,~LLiullally oriented in the resin, or layered or woven to create a bi-dil~LLiol1dl structure.
Obviously, not al! LullllJ;IlaLioll~ of resins, fibers, olienLaLions lengths and pe:lL~llLa9~:~ will be suitable. Suitable palalll~::Lt:l~ must be selected through routine ~,ue:dlllesllLdLiùll, to achieve the desired light weight and degree of stiffness.
In the preferred manufacturing process using the Novotek material or other Lhtllllùuld~Lic" the material is first die-cut to the desired outer shape, then heated to facilitate molding, and then molded to its final, contoured shape.
The manufacture of the overall boot then continues according to conventional practices. For example, the material is bonded to the curled-under portion of the boot upper via a suitable adhesive. The plastic platform and the foam liner are then inserted, and the rivets are installed in conventional fashion.
As examples of alternative processes, hand iay up, com,u~ c,;ul) molding, resin transfer molding or reaction injection molding could be used for thermoset resins. For thellllupla~LiL resins, heat forming, vacuum forming, or injection molding could be used. The invention is not limited to use with these manufacturing processes only, but could conceivably be used in other manufacturing or assembly processes, known or as yet unknown.
2 1 9 3 6 6 ~
~1V0 96100512 PCT/CA95100389 Although the cOlll,uuailt: material is much thinner than soles in the prior art, and is not particularly rigid by itself, the result of the overall assembly is 8 skate boot which is surprisingly rigid in the sole area, which provides excellent force transfer from the skater's foot to the ice or other surface, and5 which is so",~ ,l lighter than conventional skates.
It will be ~.,u,u~ L~d that the above d~l,d,ulioll relates to the preferred t:",L " llellL by way of example only. Certain variations on the invention will be obvious to those kl,o~.led~edL,le in the field, and such obvious variations are within the scope of the invention as claimed, whether or not 10 expressly described herein.
The above desuli,ulion relates to ice skates, but it should be clear that the invention could be applied to in-line skates or conventional roller skates as well. Instead of rivetting an ice skate blade holder to the boot, a wheel carriage could be attached.
15 l~nusTRlAl APPLIcARll ITY
The invention provides a skate boot with a sole which is quite rigid, yet light in weight.
2 ~ 9 3 6 6 0 WO 96/00512 PCTIC~95100389 APPENDIX A
NOViETEKIM HW-505Q
.. :
Novetek HW-5050 uses a 50%/50% mix of carbon and glass fibers in two directions. It is suitsble for a" ' ns that require modest stiffness, strength, 5 and durability with balanced ~ .,Liol)dl;ly compared to other Novetek alternatives.
COMPOSITION
Fiber Alternating woven carbon and glass fibers in both 0~ and 90~
OriGllLaliul~
Resin Acrylic * Thickness o 35n - .105" (1.0mm- 2.5mm) available ~ Weight .028 - .081 oz/in2 (.123-.356 gm/cm2) * Surface Smooth. Tlall~lJal~ to fibers Size Cut to customer ~.e.,iricaLiol1s, minimum 25in2, maximum 200 in2 (minimum 160 cm2, maximum 1290 cm2) from sheet of 48nx36"(122x91 cm).
Cutting Use steel rule die, forged die, hard tooling, shear or saw Forming Heat to 350-390~F (1 75-200~C). Piace under 5-10 psi (35-70 KPa) for about 15 seconds Finishing Use general purpose grinding and polishing wheels on edge if required ALL~ III Chemical, adhesive, or Ill~;hallicdl aLLa~;lllllelll to other materials/devices SUESTITUTE SHEET (RIJLE 26) l i ~'P ~
~WO 96/00512 PCTICA95100389 Detaiied instructions, consultation, and technical support conccs~,~;~g specific p~uce~i"g requirements are available upon request.
NOVETEI~TM HW-5050 MATFPIAl rllOP~
Thickness - inches ~mm) ,035 0.4b .055 .065 .075 .085 .105 (.89) (1.14) (1.40) (1.65) (1.91) (2.16) (2.67) Areal Density oz/in' .028 .036 .043 .051 .059 .066 .081 gm/cm' .123 .158 .189 .224 .260 .290 .356 Tensile Load (ASTM D63F~) Ib 1160 1190 1215 1245 1275 1305 1365 Tensile Strength (ASTM D638) b/in2 33100 26400 22100 19100 17000 15400 13200 KPa x 105 2.28 1.82 1.52 1.32 1.17 1.06 .91 1 5 Tensile Modulus (ASTM D638) Ib/in~ x 10-5 2.6 2.4 2.2 2.0 1.8 1.6 1.2 KPa x 10' 1.79 1.65 1.2 1.38 1.24 1.10 .83 FIexural Rigidity Ib-in''' 12 23 40 62 88 118 184 N-cm' 344 660 1148 1780 2325 3387 5280 Flexural Strength (ASTM D790) Ib/in2 x 10-6 73700 63400 57200 53000 50000 47800 44000 KPa x 10-5 5.08 4.37 3.94 3.55 3.45 3.30 3.03 SUB;,T' i UT~ S' 'LET (RULE 26~
A~ ~ ' 2193660 Flexural Modulus (ASTM D790) Ib/in2 x 106 3,3 3.1 2.9 2.7 2.5 2.3 1.9 KPa x 10-7 2.28 2.14 2.00 1.86 1.72 1.59 1.31 5 Shear Strength (ASTM D2344) Ib/in2 4840 5000 5175 5340 5525 5650 6000 KPa x 10-~ 3.33 3.45 3.57 3.68 3.80 3.78 4.13 Flexural Fatigue 1 0 Stren~th at 1 x 1 o6 cycles ASTM D790, Method 1 Ib/in2 33100 28500 25800 23900 22500 21500 19800 KPa x 10-5 2.28 1.96 1.78 1.65 1.55 i.48 1.37 Izod Impact (ASTM D256) ft-lb/in 5.0 5.0 5.0 5.0 5.0 5.0 5.0 J/cm7 2.7 2.7 2.7 2.7 2.7 2.7 2.7 20 Creep Resistance at 70~/0 Ultimate, 120~F, 120 hr.
(ASTM D2990) in/in x 103 7.2 7.2 7.2 7.2 7.2 7.2 7.2 cm/cm x 103 7.2 7.2 7.2 7.2 7.2 7.2 7.2 Heat Distortion Temp .
~F 220 220 220 220 220 220 220 ~C 105 105 105 105 105 105 105 * Per unit width.
**Based upon product of effective elastic modulus and moment of inertia.
SUBSTITUTE SI~EET (RULE 26)
Claims (29)
1. A sole for use in an ice-hockey skate, (a) said sole comprising a fiber-reinforced matrix; and (b) said sole, when in use by a skater, being:
(i) substantially incompressible, (ii) flexible, and resilient.
(i) substantially incompressible, (ii) flexible, and resilient.
2. A sole for use in an ice-hockey skate as recited in claim 1, wherein the matrix is comprised of a thermosetting resin.
3. A sole for use in an ice-hockey skate as recited in claim 1, wherein the matrix is comprised of a thermoplastic resin.
4. A sole for use in an ice-hockey skate as recited in claim 1, wherein the matrix is comprised of a resin selected from the group consisting of an epoxy, a polyamide, an acrylic, ABS, polypropylene, and polyethylene.
5. A sole for use in an ice-hockey skate as recited in claim 1, wherein the fibers are comprised of a material selected from the group of glass, carbon, and KevlarTM.
6. A solo for use in an ice-hockey skate as recited in claims 1, 2, 3, 4 or 5, wherein the fibers are randomly oriented.
7. A sole for use in an ice-hockey skate as recited in claim 1, 2, 3, 4 or 5, wherein the fibers are unidirectionally oriented.
8. A sole for use in an-ice hockey skate as recited in claims 1, 2, 3, 4 or 5, wherein the fibers are bidirectionally oriented.
9. A sole for use in an ice-hockey skate as recited in any of claims 1 to 8, wherein the sole includes a raised portion.
10. A boot for use in an ice-hockey skate, said boot including a sole:
(a) said sole comprising a fiber-reinforced matrix; and (b) said sole, when the boot is in use by a skater, being:
(i) substantially incompressible, (ii) flexible, and (iii) resillent.
(a) said sole comprising a fiber-reinforced matrix; and (b) said sole, when the boot is in use by a skater, being:
(i) substantially incompressible, (ii) flexible, and (iii) resillent.
11. A boot for use in an ice-hockey skate as recited in claim 10, wherein the matrix is comprised of a thermosetting resin.
12. A boot for use in an ice-hockey skate as recited in claim 10, wherein the matrix is comprised of a thermoplastic resin.
13. A boot for use in an ice-hockey skate as recited in claim 10, wherein the matrix is comprised of a resin selected from the group consisting of an epoxy, a polyamide, an acrylic, ABS, polypropylene, and polyethylene.
14. A boot for use in an ice-hockey skate as recited in claim 10, wherein the fibers are comprised of a material selected from the group of glass, carbon, and KevlarTM.
15. A boot for use in an ice-hockey skate as recited in claims 10, 11, 12, 13, or 14, wherein the fibers are randomly oriented.
16. A boot for use in an ice-hockey skate as recited in claims 10, 11, 12, 13, or 14, wherein the fibers are bidirectionally oriented.
17. A boot for use in an ice-hockey skate as recited in any of claims 10 to 16, wherein said sole includes a raised portion.
18, An ice-hockey skate, said ice-hockey skate including:
(a) a boot for receiving a foot of a skater, said boot including an upper portion and a solo facing a plantar surface of the foot of the skater, said sole including a fiber-reinforced matrix; and b) a blade mounted to said sole; and said sole, when the ice-hockey skate is in use by a skater, being:
(i) substantially incompressible, (ii) flexible, and (iii) resilient.
(a) a boot for receiving a foot of a skater, said boot including an upper portion and a solo facing a plantar surface of the foot of the skater, said sole including a fiber-reinforced matrix; and b) a blade mounted to said sole; and said sole, when the ice-hockey skate is in use by a skater, being:
(i) substantially incompressible, (ii) flexible, and (iii) resilient.
19. An ice-hockey skate as recited in claim 18, wherein the matrix is comprised of a thermosetting resin.
20. An ice-hockey skate as recited in claim 18, wherein the matrix is comprised of a thermoplastic resin.
21. An ice-hockey skate as recited in claim 18, wherein the matrix is comprised of a resin selected from the group consisting of an epoxyl a polyamide, an acrylic, ABS, polypropylene, and polyethylene.
22. An ice-hockey skate as recited in claim 18, wherein the fibers are comprised of a material selected from the group of glass, carbon, and KovlarTM.
23. an ice-hockey skate as recited in claims 18, 19, 20, 21 or 22, wherein the fibers are randomly oriented.
24. An ice-hockey skate as recited in claims 18, 19, 20, 21, or 22, wherein the fibers are unidirectionally oriented.
25. An-ice hockey skate as recited in claims 18, 19, 20, 21, or 22, wherein the fibers are bidirectionally oriented.
26. An ice-hockey skate as recited in any of claims 18 to 25, wherein said sole includes a raised portion.
27. An ice-hockey skate as recited in claim 18, wherein said upper includes a curled under portion overlying said sole and connected with said sole.
28. An ice-hockey skate as recited in claim 27, wherein said curled-under portion is connected to said sole by fasteners.
29. An ice-hockey skate as recited in claim 28, wherein said skate further includes a blade holder carrying said blade, said blade holder being mounted to said sole by the intermediary of said fasteners.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US26908494A | 1994-06-30 | 1994-06-30 | |
| US08/269,084 | 1994-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2193660A1 true CA2193660A1 (en) | 1996-01-11 |
Family
ID=23025731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2193660 Abandoned CA2193660A1 (en) | 1994-06-30 | 1995-06-26 | Skate boot with composite sole |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0804100A1 (en) |
| CA (1) | CA2193660A1 (en) |
| WO (1) | WO1996000512A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2770098B1 (en) | 1997-10-23 | 1999-12-03 | Etex De Rech Tech Soc | ANTI-PERFORATION DEVICE FOR FOOTWEAR AND FOOTWEAR USING SUCH A DEVICE |
| CN100515251C (en) * | 2004-08-10 | 2009-07-22 | 大樱企业股份有限公司 | Skating shoes shell |
| CN1292687C (en) * | 2005-01-26 | 2007-01-03 | 谢海云 | Glass fiber core and method for manufacturing said core |
| NZ604514A (en) | 2010-06-17 | 2014-06-27 | Dashamerica Inc D/B/A Pearl Izumi Usa Inc | Dual rigidity shoe sole |
| WO2012135007A2 (en) | 2011-03-25 | 2012-10-04 | Dashamerica, Inc. D/B/A Pearl Izumi Usa, Inc. | Flexible shoe sole |
| USD713135S1 (en) | 2012-07-25 | 2014-09-16 | Dashamerica, Inc. | Shoe sole |
| USD715522S1 (en) | 2012-07-25 | 2014-10-21 | Dashamerica, Inc. | Shoe sole |
| US9756901B2 (en) | 2015-07-07 | 2017-09-12 | Adidas Ag | Articles of footwear comprising a leno woven upper and methods of making the same |
| US10499707B2 (en) | 2017-10-18 | 2019-12-10 | Reebok International Limited | Articles of footwear having a leno woven upper with a bladder component |
| US10609986B2 (en) | 2018-03-23 | 2020-04-07 | Reebok International Limited | Articles of footwear having a leno woven upper with stretch zones |
| US11510455B2 (en) * | 2020-09-04 | 2022-11-29 | Bauer Hockey Llc | Skate or other footwear |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1019949A (en) * | 1975-01-23 | 1977-11-01 | Maurice J. Juzenko | Molded athletic boot and method of making same |
| FR2635651A1 (en) * | 1988-08-30 | 1990-03-02 | Salomon Sa | Injection pocket for obtaining an inner sole (insole) for a boot with a rigid shell, method for obtaining such a sole and sole thus obtained |
| NL193628C (en) * | 1989-06-24 | 2000-05-04 | Jacob Havekotte | Sports shoe, more particularly skating shoe, as well as a method for manufacturing a shoe shell as a carrier for the upper part of such a shoe. |
-
1995
- 1995-06-26 WO PCT/CA1995/000389 patent/WO1996000512A1/en not_active Ceased
- 1995-06-26 CA CA 2193660 patent/CA2193660A1/en not_active Abandoned
- 1995-06-26 EP EP95923151A patent/EP0804100A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP0804100A1 (en) | 1997-11-05 |
| WO1996000512A1 (en) | 1996-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1641364B1 (en) | Athletics shoe | |
| JPH084648B2 (en) | Ski with mounting plate | |
| US5974696A (en) | Skate boot having an outsole with a rigid insert | |
| CA2193660A1 (en) | Skate boot with composite sole | |
| EP1353733A1 (en) | Integrated modular glide board | |
| KR19990067925A (en) | Sandwich-type footwear stiffening element of rigid or at least semi-rigid behaviour, usable as part of the sole unit or insole | |
| EP2387335B1 (en) | Supportive sport boot made of rigid materials | |
| CA2244610A1 (en) | Crossover hockey blade and method | |
| US20060175802A1 (en) | Snowboard impact plate and binding release mechanism | |
| US12048350B2 (en) | Skate or other footwear | |
| EP1258269B1 (en) | Skate frame with cap construction | |
| JPH0219047Y2 (en) | ||
| EP0948910A2 (en) | A snowboard boot having an asymmetrical support member | |
| EP1013314A1 (en) | Ice skate runner holder | |
| US12465111B2 (en) | Skate or other footwear | |
| JPH057923Y2 (en) | ||
| US6446984B2 (en) | Foam core skate frame with embedded insert | |
| CA3092397C (en) | Skate or other footwear | |
| US20240423316A1 (en) | Negative poisson`s ratio materials for winter sports equipment | |
| JP6945112B1 (en) | Shoe structure and skates | |
| CA2192292A1 (en) | Hockey boot having a composite sole | |
| Lind et al. | Equipment: Properties and Performance | |
| EP0954225A1 (en) | Tri-point skate boot | |
| HK1145778A (en) | Athletics shoe | |
| CA2279409A1 (en) | Tri-point skate boot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |