Claims
- 1. A grinder prepared by a method comprising the steps of:
- forming a grinding particle fixing sheet of predetermined configuration;
- forming a patterned adhesive layer on a surface of said sheet;
- sprinkling grinding particles each having a predetermined diameter on a surface of said sheet for selectively fixing said particles only on said patterned adhesive;
- preparing a plurality of sheets fixed with said grinding particles produced by the above described steps; and
- arranging said a plurality of said sheets fixed with said grinding particles one over another according to a predetermined lamination rule, and pressure laminating under a heated condition.
- 2. A grinder according to claim 1 wherein said sheets are rotated in a circumferential direction by a predetermined angle when they are laminated.
- 3. The grinder according to claim 1 wherein said pattern comprises a plurality of circumferentially spaced radial lines extending on said surface of said sheet.
- 4. The grinder according to claim 1 wherein said pattern comprises a plurality of circumferentially spaced curved lines.
- 5. The grinder according to claim 1 wherein said pattern comprises a plurality of concentric circular lines about a center of said sheet.
- 6. A grinder according to claim 4, wherein said pattern of adhesive is formed and said grinding particles are sprinkled on said pattern and fixed thereto and said sheets are laminated together with a spacing between grinding particles in an axial direction of less than 2/3 of the mean diameter of said grinding particles, and
- wherein said pattern of adhesive layer formed and said tiny particles are sprinkled on said pattern and fixed thereto with a spacing between said grinding particle in a circumferential direction of about 5-80 times a mean diameter of said grinding particles.
- 7. A grinder according to claim 6, wherein said pattern of adhesive is formed and said grinding particles are sprinkled on said pattern and fixed thereto with a twist angle .theta. of a twist angle of train of said grinding particles with respect to a diameter of rotation of said grinder of from 15.degree. to 80.degree..
- 8. A grinder prepared by a method consisting essentially of the steps of:
- forming a grinding particle fixing sheet of predetermined configuration;
- forming a pattern adhesive layer on a surface of said sheet;
- sprinkling grinding particle each having a predetermined diameter on a surface of said sheet for selectively fixing said particles only on said patterned adhesive;
- preparing a plurality of sheets fixed with said grinding particles produced by the above described steps; and
- arranging said plurality of sheets fixed with said grinding particles one over another according to a predetermined lamination rule, and pressure laminating under a heated condition.
- 9. The grinder according to claim 8, wherein particles are removed from non-adhesive portions of said surface.
- 10. The grinder according to claim 8, wherein said grinding particles have a diameter greater than said width of said pattern of adhesive layer.
- 11. The grinder according to claim 8, wherein said pattern of adhesive is formed and said grinding particles are sprinkled on said pattern and fixed thereto and said sheets are laminated together with a spacing between grinding particles in an axial direction of less than 2/3 of the mean diameter of said grinding particles.
- 12. The grinder according to claim 8, wherein said pattern of adhesive layer is formed and said grinding particles are sprinkled on said pattern and fixed thereto with a spacing between said grinding particles in a circumferential direction of about 5-80 times a mean diameter of said grinding particles.
- 13. The grinder according to claim 12, wherein said pattern of adhesive layer is formed and said grinding particles are sprinkled on said pattern and fixed thereto with a spacing between said grinding particles in a circumferential direction of about 5-80 times a mean diameter of said grinding particles.
- 14. A grinder according to claim 13, wherein said pattern of adhesive layer is formed and said grinding particles are sprinkled on said pattern and fixed thereto with a twist angle .theta. of a twisting angle of a train of said grinding particles with respect to a diameter of rotation of said grinder of from 15.degree. to 80.degree..
Priority Claims (1)
Number |
Date |
Country |
Kind |
61-96883 |
Apr 1986 |
JPX |
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Parent Case Info
This is a divisional application of Ser. No. 07/274,748, filed Nov. 21, 1988, now U.S. Pat. No. 5,151,109 which is a continuation application of Ser. No. 07/042,064, filed Apr. 24, 1987, now abandoned.
US Referenced Citations (3)
Divisions (1)
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Number |
Date |
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Parent |
274748 |
Nov 1988 |
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Continuations (1)
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Number |
Date |
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42064 |
Apr 1987 |
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