Bow sight with injection molded metal sight pins, and methods
View Patent ↗The invention relates to an archery device having a part or component is injection molded; the part is injection molded metal, ceramic, or composite material. A sight pin for a bow sight is a part that is especially suited for being injection mold. Injection molding of metal, ceramic or composite sight pins allows for various cross-sectional shapes and areas for the pin along its length. The injection molded sight pin can be a vertically extending pin or a horizontally positioned pin, and multiple pins may be configured for viewing in a straight line.
1. A method of making a part for a bow sight, the method comprising: (a) providing a mold being an inverse of a desired part structure; (b) injection molding powdered metal, ceramic or composite into the mold; and (c) removing from the mold a metal, ceramic or composite part with a dimensional tolerance of 0.005 inch.
2. A method of making a part for a bow sight as claimed in claim 1 , wherein the desired part structure in step (a) is a body of the bow sight.
3. A method of making a part for a bow sight as claimed in claim 1 , wherein the desired part structure in step (a) is a vertical positioning mechanism.
4. A method of making a part for a bow sight as claimed in claim 1 , wherein the desired part structure in step (a) is a mounting bracket.
5. A method of making a part for a bow sight as claimed in any one of claims 2 , 3 , and 4 , wherein the powdered metal is an alloy steel selected from the group consisting of 2% nickel iron, 50% nickel iron, 80% nickel iron, nickel-zinc ferrite alloy, and 3% silicon-iron alloy.
6. A method of making a part for a bow sight as claimed in any one of claims 2 , 3 , and 4 , wherein the powdered metal is a tool steel.
7. A method of making a part for a bow sight as claimed in any one of claims 2 , 3 , and 4 , wherein the powdered metal is selected from the group consisting of precipitation hardened stainless steel, martensitic stainless steel, ferritic stainless steel and austentic stainless steel.
8. A method of making a part for a bow sight as claimed in any one of claims 2 , 3 , and 4 , wherein the powdered ceramic is selected from the group consisting of alumina, zirconia, and tungsten carbide.
9. The method according to claim 1 , wherein the mold is approximately 10-20% larger than the end design, but has the geometric configuration of the final part.
10. The method according to claim 1 , wherein material injected into the mold is sintered at an elevated temperature and pressure such that the part reaches a density of at least 90%.
11. A method of making a part for an archery bow arrow rest, the method comprising: (a) providing a mold being an inverse of a desired part structure; (b) injection molding powdered metal, ceramic or composite into the mold; and (c) removing from the mold a metal, ceramic or composite part for an archery bow arrow rest with a dimensional tolerance of 0.005 inch.
12. The method according to claim 11 , wherein the mold is approximately 10-20% larger than the end design, but has the geometric configuration of the final part.
13. The method according to claim 11 , wherein material injected into the mold is sintered at an elevated temperature and pressure such that the part reaches a density of at least 90%.
14. A method of making a part with a sight point for a bow sight, the method comprising: (a) providing a mold being an inverse of a desired part structure; (b) injection molding powdered metal, ceramic or composite into the mold; and (c) removing from the mold a metal, ceramic or composite part with a sight point with a dimensional tolerance of 0.005 inch.
15. The method according to claim 14 , wherein the mold is approximately 10-20% larger than the end design, but has the geometric configuration of the final part.
16. The method according to claim 14 , wherein material injected into the mold is sintered at an elevated temperature and pressure such that the part reaches a density of at least 90%.