Cutting – With means to convey work relative to tool station – With work-constraining means on work conveyer
Patent
1976-10-14
1977-12-13
Schran, Donald R.
Cutting
With means to convey work relative to tool station
With work-constraining means on work conveyer
83917, 90 1305, 83522, 83278, B26D 706
Patent
active
040622614
ABSTRACT:
A key cutting apparatus for cutting a series of longitudinally spaced notches in the blade of a key blank according to specifications set forth in key manufacturer's code books. The apparatus includes a cutter mounted on a base, a carriage assembly movably mounted on the base for controllable movement toward and away from the cutter; the carriage assembly includes a sub-carriage adapted for controllable independent movement in a direction perpendicular to the carriage assembly movement. A key blank clamping assembly secured to the sub-carriage holds the key blank for the cutting operation and cooperates with positioning means which effects proper positioning of the key blank to permit cutting of the first notch at a code book specified distance from a reference point which is generally the key blank shoulder. The remaining notches are equidistantly spaced from each other along the remaining portion of the key blank blade. A variable spacing control assembly allows selection of this spacing. A pivotable index arm cooperates with the sub-carriage and the variable spacing control assembly to accurately convert an incremental arcuate motion of the index arm into an incremental retilinear motion of the sub-carriage to thereby correctly position the blade of the key blank for cutting of the remaining notches.
REFERENCES:
patent: 3719115 (1973-03-01), Muri
patent: 3748940 (1973-07-01), Muri
patent: 3971278 (1976-07-01), Wich
patent: 3981214 (1976-09-01), Wich
Chanin Alvin M.
Chanin Robert
Mooney Robert J.
Mooney Robert J.
Schran Donald R.
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