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US 12,653,111 B2Granted
Pruning shears
AssigneeMilwaukee Electric Tool Corporation
InventorsAlex G. Steinhauer, Griffin M. Steffy, Joseph R. Outinen, Justin M. Czok, Peter J. Davies, Sara Burch, Scott D. Libert
Life of this patent
Estimating the term…
Abstract
Pruning shears include a housing having a motor portion and a handle portion. A motor is disposed within the motor portion of the housing, and a trigger assembly is disposed within the housing portion. The trigger assembly is operable to control the motor. The trigger assembly includes a trigger and a trigger lock. The trigger lock prevents actuation of the trigger until the trigger lock is depressed.
Claims5
Shears, comprising:
- a housing comprising
- a motor portion at which a motor and a rack gear is disposed, the rack gear operably coupled to the motor;
- and
- a handle portion comprising a trigger operatively coupled to the motor to control operation of the motor, the handle portion comprising a trigger lock configured to prevent actuation of the trigger until the trigger lock is depressed;
- a frame extending from the motor portion of the housing;
- a support blade affixed to the frame;
- a cutting blade adjacent to the support blade and coupled to the rack gear, wherein the cutting blade and the support blade form a blade assembly;
- an inductive sensor placed near the blade assembly to detect a position of the cutting blade relative to the support blade;
- and
- a control board operatively coupled to the inductive sensor, the motor, and the trigger, the control board configured to control operation of the motor and the cutting blade based on a position of the cutting blade as indicated by the inductive sensor, wherein the control board is configured to cause the shears to perform operations, the operations comprising a trigger wait state corresponding to release of the trigger via actuation of the trigger lock, wherein, after the trigger is pulled, the operations comprise an active track state in which a maximum open distance of the cutting blade is alterable, via the rack gear, based on a trigger pull, and the position of the cutting blade.
7 more elements
Dependencies are inferred from the claim text.