Hockey blade with wrapped, stitched core
View Patent ↗A construct for a hockey blade that includes a foam core. The foam core includes a first core face, a second core face, and a core edge. A first layer of resin preimpregnated tape is wrapped continuously around the first core face, the core edge and the second core face. A thread is stitched along the first layer of preimpregnated tape. A second layer of resin preimpregnated tape wrapped continuously around the first layer of resin preimpregnated tape.
1. A method of fabricating a formed structure with a stitched foam core comprising:
forming a foam core, the core comprising a first core face, a second core face, a top core edge and a bottom core edge;
wrapping the foam core with a first layer of fiber tape, the first layer of fiber tape extending continuously along the first core face, top core edge, second core face and bottom core edge of the foam core, wherein the wrapped core has a first wrapped face, a second wrapped face, a top wrapped edge and a bottom wrapped edge;
placing at least two separate pieces of non-tacky veil material on the wrapped core;
stitching the foam core with a thread, the thread extending along the core;
wrapping a portion of the core with a second layer of fiber tape to form a preform;
placing the preform in a mold;
heating the mold;
cooling the mold; and
removing the formed structure from the mold.
2. The method according to claim 1 wherein the formed structure is a hockey blade.
3. The method according to claim 2 wherein the fiber tape is carbon fiber tape preimpregnated with resin.
4. The method according to claim 3 wherein the second layer of tape is substantially thicker than the first layer.
5. The method according to claim 4 wherein a single layer of fiber tape is used in the step of wrapping the foam core with a first layer of fiber tape.
6. The method according to claim 4 wherein a plurality of layers of tape are used in the step of wrapping the stitched preform with a second layer of fiber tape.
7. The method according to claim 6 wherein the thread is polyester.
8. The method according to claim 6 wherein the thread is carbon fiber.
9. The method according to claim 7 wherein the stitching follows a predetermined criss-cross pattern.
10. A method comprising:
forming a foam core;
wrapping the foam core with a first layer of fiber tape;
placing a first piece of non adhesive scrim on the construct and a second piece of non adhesive scrim on the construct to form a sandwich structure, wherein the first piece of non adhesive scrim is separate from the second piece of non adhesive scrim;
stitching the wrapped foam core with a thread, the thread extending between and along a first wrapped face and a second wrapped face;
wrapping a portion of the stitched wrapped core with a second layer of fiber tape to form a preform;
placing the preform in a mold;
heating the mold;
cooling the mold; and
removing the formed structure from the mold.
11. The method according to claim 10 wherein the formed structure is a hockey blade.
12. The method according to claim 10 wherein the fiber tape is carbon fiber tape preimpregnated with resin.
13. The method according to claim 12 wherein the second layer of tape is substantially thicker than the first layer.
14. The method according to claim 13 wherein a single layer of fiber tape is used in the step of wrapping the foam core with a first layer of fiber tape.
15. A method comprising:
forming a foam core;
wrapping the foam core continuously with a first layer of fiber tape;
placing at least two separate pieces of a non-tacky veil material on portions of the wrapped core;
stitching the wrapped foam core with a thread, the thread extending between and along a first wrapped face and a second wrapped face of the wrapped core;
wrapping a portion of the stitched wrapped core with a second layer of fiber tape to form a preform;
placing the preform in a mold;
heating the mold;
cooling the mold; and
removing the formed structure from the mold.
16. The method according to claim 15 wherein the formed structure is a hockey blade.
17. The method according to claim 15 wherein the fiber tape is carbon fiber tape preimpregnated with resin.
18. The method according to claim 15 wherein the second layer of tape is substantially thicker than the first layer.
19. The method according to claim 18 wherein a single layer of fiber tape is used in the step of wrapping the foam core with a first layer of fiber tape.