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US 8,322,456 B2Granted
Articulating drill with integrated circuit board and method of operation
AssigneeRobert Bosch GmbH
InventorsDavid Pozgay, Harald Krondorfer, John B. Freese, John DeCicco, Stephen C. Oberheim
Life of this patent
Estimating the term…
Abstract
The present invention is an articulating hand power tool with a main housing having a longitudinal axis, a head portion rotatably engaged with the main housing for placement at a plurality of angles with respect to the longitudinal axis of the main housing, an integrated circuit board located within the main housing and at least one controller accessible from outside of the main housing for controlling the integrated circuit board.
Claims23
An articulating hand power tool, comprising:
- a main housing having a longitudinal axis;
- a head portion rotatably engaged with the main housing for rotation within a plane which includes the longitudinal axis of the main housing and placement at a plurality of angles with respect to the longitudinal axis of the main housing;
- an integrated circuit board located within the main housing;
- at least one controller accessible from outside of the main housing for controlling the integrated circuit board;
- a bit holder rotatably mounted in the head portion;
- a motor within the main housing;
- and
- an articulating gear system operably coupled to the motor and the bit holder for transferring force between the motor and the bit holder at each of the plurality of angles with respect to the longitudinal axis of the main housing.
5 more elements
A hand power tool comprising:
- a longitudinally extending main housing;
- a head portion configured to be engaged with the main housing at a plurality of angles with respect to the longitudinal axis of the main housing, each of the plurality of angles within a single plane;
- an articulation gear system for providing motive force to a bit holder in the head portion including a motor side pinion gear having an axis of rotation generally parallel to a longitudinal axis of the housing and an output pinion gear having an axis of rotation generally parallel to a longitudinal axis of the head portion, wherein the motor side pinion gear is operatively connected to the output side pinion gear through a bevel gear;
- a controller operable from outside of the main housing and located generally on the plane;
- and
- an integrated circuit located within the main housing and responsive to the controller.
3 more elements
A method of operating a hand power tool comprising:
- rotating a head portion of the power tool within a plane including the longitudinal axis of a main housing of the power tool to one of a plurality of angles with respect to the longitudinal axis;
- moving a variable speed trigger switch located outside of the main housing;
- generating a variable speed signal with an integrated circuit located within the main housing in response to the movement of the variable speed trigger;
- controlling the speed of a motor located within the main housing based upon the variable speed signal;
- and
- transferring motive force from the motor to a component within the head portion.
3 more elements
Dependencies are inferred from the claim text.