Patent ID: 6065906
Filing Date: 2000-05-23
Classification: B23B,Y10T

Abstract:
A key for widening a slot of a cutting insert holder that includes a blade-shaped body having a base and an elastically flexible clamping arm forming opposing surfaces of the slot, the key comprising a shaft having first and second projections forming respective first and second abutment surfaces for engaging respective contact surfaces of the clamping arm and base, respectively, at least one of the first and second projections being mounted on the shaft for movement relative to the other of the first and second projections, whereby a distance between the first and second abutment surfaces initially increases and then decreases in response to turning of the shaft in one direction during a widening of the slot, wherein the key further includes a link mounted to the shaft by a pivot for pivotal movement about an axis, the pivot being spaced from the first and second projections, the pivot arranged to cross over an imaginary line interconnecting the first and second abutment surfaces during turning of the shaft in a slot-widening direction, whereby the key holds the clamping arm open without the application of a manual force to the key.