Cutters – for shaping – Including holder having seat for inserted tool – Tool adjustable relative to holder
Patent
1999-07-15
2000-12-05
Briggs, William
Cutters, for shaping
Including holder having seat for inserted tool
Tool adjustable relative to holder
407 93, 407 97, 407103, B23C 524
Patent
active
061557536
ABSTRACT:
A boring cutter assembly with fine adjustment is provided for finely adjusting the diameter of the bore to be formed and for compensating wear of the blade. The boring cutter assembly includes a cutter shaft including a distal end with a cutter seat for receiving a blade. A countersink is defined adjacent to the cutter seat. A bottom wall that defines the countersink includes a screw hole. The countersink and the screw hole together receive an adjusting screw. A first scale is provided on the distal end of the cutter seat and around the countersink. A second scale is provided on the top face of the fine adjusting screw and corresponds to the first scale. A side of the blade that defines a portion of the cutting clearance angle of the blade cooperates with the pitch of the fine adjusting screw, such that the blade is laterally moved when the fine adjusting screw moves vertically as a result of rotation thereof, thereby adjusting the diameter of the bore to be formed.
REFERENCES:
patent: 2223831 (1940-12-01), Luers
patent: 2659962 (1953-11-01), Doerseln
patent: 3205559 (1965-09-01), Greenleaf
patent: 3296897 (1967-01-01), Konwal
patent: 3644050 (1972-02-01), Schiller
patent: 4211510 (1980-07-01), Hopkins
patent: 4876932 (1989-10-01), Nessel
patent: 5167473 (1992-12-01), Barnett
patent: 5217330 (1993-06-01), Dennstedt
patent: 5536119 (1996-07-01), Werner et al.
Briggs William
Ergenbright Erica
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