Cutlery – Cutting tools – Plural cooperating blades
Patent
1997-04-23
1999-02-09
Watts, Douglas D.
Cutlery
Cutting tools
Plural cooperating blades
30216, B26B 1500
Patent
active
058679090
ABSTRACT:
Branch shears (1) having two blades (11, 12) that are movable in relation to each other, of which one blade (11) is rigidly connected with a housing (2) and the other blade (12) can be moved by an electric motor (5) via a threaded spindle (8), a threaded nut (21) arranged on the threaded spindle and a rod assembly connected to the threaded nut. A control switch (41) having two reversing switches (42, 43) connected to the circuit of the electric motor (5) is provided. In addition, a control link (51) is attached to the spindle nut (21), onto which the operating cams (53, 54, 55) interacting with the reversing switches (42, 43) are formed. With the aid of the control switch (41), it is possible to stop, continue or reverse the movements of the pivotable blade (12) at any time in a simple manner, thus the movements of this blade can be controlled as desired. In addition, it is ensured that the branch shears (1) will always open automatically by the force of the electric motor (5) if the control switch is released.
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Jeltsch Thomas
Lutzeler Jorn
J. Wagner GmbH
Watts Douglas D.
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