Horizontal laminated ski construction
View Patent ↗A core assembly for a gliding board such as a ski or a snowboard. The core assembly includes a plurality of horizontal layers that are sized to various desired lengths, positioned to achieve a desired thickness profile, and laminated. A method of making a core assembly for a gliding board.
1. A ski core assembly comprising a plurality of horizontally-oriented thin panels that are sized to various desired lengths and laminated together, wherein each of the plurality of panels have a uniform thickness, and wherein the lengths and positions of the plurality of thin panels are selected to produce a desired thickness profile in the ski core assembly such that the desired thickness profile of the ski core assembly is achieved without profiling the laminated panels, wherein at least some of the plurality of thin panels are arranged in order of decreasing length from longest at the bottom to shortest at the top such that the desired thickness profile is curved with a maximum thickness at a longitudinally intermediate location.
2. The ski core assembly of claim 1 , wherein the panels are formed of a wood veneer.
3. The ski core assembly of claim 1 , wherein the panels are formed of an anisotropic composite material.
4. The ski core assembly of claim 1 , wherein the panels are generally rectangular panels having a width between 2 and 10 inches, and a thickness not greater than 0.25 inches.
5. The ski core assembly of claim 1 , wherein the panels are approximately 0.063 inches thick and extend across the entire width of the core assembly.
6. A ski comprising a ski core assembly having a plurality of horizontally-oriented thin panels that are sized to various desired lengths and laminated together, wherein each of the plurality of panels have a uniform thickness, and wherein the lengths and positions of the plurality of thin panels are selected to produce a desired thickness profile in the core assembly such that the desired thickness profile of the ski core assembly is achieved without profiling the laminated panels, wherein at least some of the plurality of thin panels are arranged in order of decreasing length from longest at the bottom to shortest at the top such that the desired thickness profile is curved with a maximum thickness at a longitudinally intermediate location, and a base that is attached to an underside of the ski core assembly.
7. The ski of claim 6 , further comprising a top sheet that is positioned on top of the ski core assembly and extends along the entire length of the ski.
8. The ski of claim 6 , wherein the ski core assembly panels are wood veneer panels.
9. The ski of claim 8 , wherein the wood panels have a thickness not greater than 0.25 inches.
10. A method of making a ski, the method comprising:
(a) providing a base member having a desired plan form shape;
(b) providing a plurality of thin panels that are cut to various desired lengths to define a ski core assembly comprising a plurality of horizontally-oriented thin panels, wherein each of the plurality of panels have a uniform thickness;
(c) positioning the thin panels on the base member to produce a desired thickness profile, wherein at least some of the plurality of thin panels are arranged in order of decreasing length from longest at the bottom to shortest at the top such that the desired thickness profile is curved with a maximum thickness at a longitudinally intermediate location;
(d) laminating the thin panels together and to the base member, wherein the desired thickness profile of the ski core assembly is achieved without profiling the laminated panels; and
(e) shaping the thin panels to conform to the base member plan form shape.
11. The method of claim 10 , further comprising attaching metal edges to the base member.
12. The method of claim 11 , further comprising adhering a top sheet over a top of the core assembly that extends along the entire length of the core assembly.
13. The method of claim 12 , wherein the base member, horizontal layers, and top sheet are fixably attached to one another by applying an adhesive and pressing the base member, horizontal layers, and top sheet together until the adhesive has cured.
14. The method of claim 13 , wherein the adhesive is an epoxy resin.
15. The method of claim 10 , wherein the horizontal layers are formed of wood.
16. The method of claim 10 , wherein the horizontal layers are formed of an anisotropic composite material.
17. The method of claim 10 , wherein the thin panels are pieces of rectangular veneer that are about 5 inches wide and about 0.063 inches thick.
18. The method of claim 17 , wherein the pieces of rectangular veneer are laminated with a grain orientation alternating by ninety degrees between adjacent layers.