Cutters – for shaping – Including holder having seat for inserted tool – With tool ejector
Patent
1996-11-08
1998-08-18
Pitts, A. L.
Cutters, for shaping
Including holder having seat for inserted tool
With tool ejector
407110, 407117, B23B 2914
Patent
active
057951098
ABSTRACT:
A blade-type holder for a cutting insert includes a blade body having front and rear slots. The front slot is closed at its rear end and open at its front end for receiving a cutting insert. The rear slot has a closed front end spaced rearwardly of the closed rear end of the front slot so that a portion of the blade body disposed between those closed ends defines a spring hinge. The spring hinge interconnects a base and camping portion of the blade body. The base portion is disposed below the slots, and the clamping portion is disposed above the slot. An operator employs a tool to manually apply a downward force to the clamping portion at location rearwardly of the spring hinge to cause the front end of the clamping portion to swing upwardly about the spring hinge, to widen the front slot. After a cutting insert has been replaced, the manual force is released, whereupon the front end is swung downwardly into clamping engagement with the cutting insert by the restoring force of the spring hinge.
REFERENCES:
patent: 383103 (1888-05-01), Cook
patent: 406538 (1889-07-01), Rickolson
patent: 4588333 (1986-05-01), Gustafson
patent: 4801224 (1989-01-01), Petterson et al.
patent: 4938640 (1990-07-01), Pano et al.
patent: 5267817 (1993-12-01), Englund
patent: 5516241 (1996-05-01), Plutschuck et al.
Forsstrom Klas
Jonsson Anders
Pitts A. L.
Sandvik AB
Tsai Henry W. H.
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