Method of making a hockey stick blade
A method of making a hockey stick blade with a shank and a blade element having a front external surface and a rear external surface, the method comprising: (a)selecting a core made of thermo-expandable foam; (b) forming a preformed blade by wrapping the core with first and second layers of fibers pre-impregnated with resin; (c) selecting front and rear thermoplastic sheets for covering at least partially the second layer of fibers, for forming part of the respective front and rear external surfaces of the blade element and for increasing the impact resistance of the hockey stick blade; (d) placing the front and rear thermoplastic sheets and the preformed blade in a mold such that the preformed blade is between the front and rear thermoplastic sheets; (e) applying heat to the mold; and (f) when said resin is cured, removing the hockey stick blade from the mold.
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30 . A method of making a hockey stick blade with a shank and a blade element having a front external surface and a rear external surface, said method comprising:
(a) selecting a core made of thermo-expandable foam;
(b) forming a preformed blade by wrapping said core with first and second layers of fibers pre-impregnated with resin;
(c) selecting front and rear thermoplastic sheets for covering at least partially said second layer of fibers, for forming part of said respective front and rear external surfaces of said blade element and for increasing the impact resistance of said hockey stick blade;
(d) placing said front and rear thermoplastic sheets and said preformed blade in a mold such that said preformed blade is between said front and rear thermoplastic sheets;
(e) applying heat to the mold; and
(f) when said resin is cured, removing said hockey stick blade from the mold.
31 . A method as defined in claim 30 , wherein said selection of said core comprises selecting a first portion for placing above a second portion.
32 . A method as defined in claim 31 , wherein said first layer of fibers comprises a first fibers braid covering said first portion and a second fibers braid covering said second portion.
33 . A method as defined in claim 32 , wherein said second layer of fibers comprises a third fibers braid covering said first and second fibers braids.
34 . A method as defined in claim 33 , wherein said first and second layers of fibers are made of woven fibers selected from the group consisting of carbon fibers, glass fibers, KEVLAR fibers, ceramic fibers, boron fibers, quartz fibers, spectra fibers, polyester fibers and polyethylene fibers.
35 . A method as defined in claim 34 , wherein said first, second, third and fourth fibers braids are made of fibers crossing at between 30° and 60°.
36 . A method as defined in claim 31 , wherein said blade comprises an interface between said first and second portions, said interface comprising fibers oriented transversely relative to a longitudinal axis of said core.
37 . A method as defined in claim 30 , wherein said selection of said front and rear sheets of thermoplastic material comprises selecting a thermoplastic material selected from the group consisting of polyethylene, polyurethane, polypropylene, polyester, polystyrene, polyvinyl chloride and cellulose acetate.
38 . A method as defined in claim 30 , wherein said selection of said core comprises selecting a thermo-expandable foam selected from the group consisting of polyurethane foam, ethylene vinyl acetate (EVA) foam, polyvinyl chloride (PVC) foam, ethylene polypropylene foam and polyisocyanurate foam.
39 . A method as defined in claim 30 further comprising selecting a front or a rear thermoplastic sheet that comprises an indicia.