Key cutting device
AssigneeCongoleum Corporation
InventorNathan S. Lieptz
Life of this patent
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Abstract
A key cutting device (20), for replacement keys, having a key blank support member (30), a lever-actuated shearing punch (25) for the key blank, and a depth-gauging stop (33) for the support member (30); the shearing punch (25) is formed to provide an optional two-step (44, 46) cut on the key with a control stop (49) for limiting the stroke of the punch to one step or two steps, as desired, for creating different cuts on the key blank; a locking device (63) automatically moves into locking position with respect to the yieldably-actuated support member (30) to prevent its displacement when the operating lever (37) is manipulated for the key cutting operation.
Claims13
In a key cutting device having a body, a movable cutting tool carried by said body, a key blank support member yieldably mounted on said body and selectively movable to bring the key blank into and out of the path of cutting movement of said cutting tool, depth-of-cut gauging means carried by said body in the path of movement of said support member, and actuating means for effecting operative movement of said cutting tool and said support member:
- the improvement comprising a cutting tool in the form of a longitudinally movable key shearing punch, said punch presenting a first cutting portion at its forward cutting end and an enlarged second cutting portion rearwardly of said first cutting portion, and adjustable punch-stop means carried by said body and selectively movable to arrest forward cutting movement of said punch before said enlarged second portion reaches operative cutting position.
In a key cutting device having a body, a movable cutting tool carried by said body, a key blank support member yieldably mounted on said body and movable to bring the key blank into and out of the path of cutting movement of said cutting tool, depth-of-cut gauging means carried by said body in the path of movement of said support member, and actuating means for effecting operative movement of said cutting tool and said support member:
- the improvement comprising locking means responsive to actuation of said cutting tool for securing said yieldable support member against displacement from operative engagement with said depth-of-cut gauging means.
Dependencies are inferred from the claim text.