Black Decker Inc.

Charles L Bradenbaugh

Craig Alan Schell

Paul Gerard Gross

James J Kenney

Ashok Samuel Baskar

Alan Berry

Robert Alan Berry

William D Sauerwein

Adan Ayala

Nathan J Cruise

Michael P Baron

James R Niblett

Glen V Steinbrunner

Keven E Miller

Andrzej R Wojcicki

John C Funicello

C Kerwin Braddock

John E Buck

Michael Kenneth Forster

Bhanuprasad V Gorti

David C Tomayko

Erik A Ekstrom

Li Xu

Howard T White

William F Hilsher

Jan Carl Denner

Jeffrey A Elligson

Steven R Colello

William A Sauerwein

A powered tool follower assembly can include a solenoid plunger that is movable longitudinally in a direction aligned with a drive axis in response to energization of the solenoid and a biasing mechanism with a spring axis extending transversely to the drive axis. A lever arm can extend between the plunger and the biasing member and couple the plunger to the biasing mechanism. A pinch roller can be disposed between the lever arm and the driver. Energization of the solenoid can move the plunger longitudinally, causing relative movement between the lever arm and the drive wheel that forces the pinch roller into engagement with the driver and transfers a biasing force from the compression spring through the lever arm and pinch roller to the driver to pinch the driver between the pinch roller and the flywheel and drive the driver along the driver axis.

Powered hand-held fastening tool

A powered hand-held fastening tool includes a housing defining a handle, a frame, a motor-driven flywheel journaled to the frame, and an elongated driver that is selectively coupled to the flywheel to drive a fastener into a workpiece. The flywheel and driver have complementary sloped surfaces that mesh with each other to transmit energy from the flywheel to the driver to accelerate the driver along the driver axis. A follower assembly for selectively coupling the driver to the flywheel includes a solenoid actuator.

A powered hand-held fastening tool includes a housing defining a handle, a frame, a motor-driven flywheel journaled to the frame, and an elongated driver that is selectively coupled to the flywheel to drive a fastener into a workpiece. A follower assembly for selectively coupling the driver to the flywheel includes a solenoid actuator, a biasing mechanism, a lever arm connected between the solenoid actuator and the biasing mechanism, and an intermediate member having journaled thereto a pivot roller and a pinch roller. Upon energization of the solenoid the lever arm is moved in a direction parallel to the drive axis, thereby applying a force on the pivot roller perpendicular to the drive axis, causing the pinch roller to press the driver against the flywheel and initiate the drive stroke. The intermediate member pivots about the pivot roller to release the pressure on driver upon completion of the drive stroke.

A driving tool with a housing, a motor received in the housing, a control unit and a trigger. The housing defines a handle. The control unit is configured to operate the motor and has a microswitch, an actuator arm and a spring. The actuator arm is biased by the spring toward the microswitch. The spring is configured to move the actuator arm against the microswitch to cause the microswitch to operate in an actuated switch state. The trigger is coupled to the handle and is movable between a first trigger position and a second trigger position. The trigger has a switch arm that cooperates with the actuator arm to form a lost-motion coupling that permits a predetermined amount of movement of the trigger from the first trigger position to the second trigger position before coupling the switch arm to the actuator arm. The actuator member does not contact the microswitch when the trigger is in the second trigger position so that the microswitch operates in a nominal switch state.

Driving tool with controller having microswitch for controlling operation of motor

A driving tool having a driver, a power source, a sensor and a controller. The power source selectively provides an input to the driver to cause the driver to translate along an axis. The sensor senses a condition in the power source that is indicative of a level of kinetic energy of an element in the power source and generates a sensor signal in response thereto. The controller is coupled to the power source and the sensor and is responsive to the sensor signal for deactivating the power source to inhibit the power source from providing the input to the driver when the level of kinetic energy of the element in the power source is below a predetermined threshold. A method for operating a driving tool is also provided.

Method for controlling a power driver

A hand-held tool with a backbone, a motor assembly that is mounted to the backbone, and a plastic housing. The motor assembly can include a driver and can be selectively actuatable to translate the driver along an axis. The plastic housing can be coupled to the backbone and can shroud at least a portion of the backbone.

Structural backbone/motor mount for a power tool

A driving tool with a flywheel, a driver, an actuator and a roller that is moveable between an unactuated position and an actuated position. Positioning of the roller in the actuated position forces an engagement surface on the driver into contact with a rotating edge of the flywheel to transfer energy from the flywheel to the driver so that the driver will translate along an axis. The actuator at least partially initiates movement of the roller from the unactuated position to the actuated position.

Flywheel configuration for a power tool

A tool with a driver, a motor, a structure to which the motor is coupled and a return cord assembly. The driver that is translatable along an axis between an extended position and a retracted position. The motor is configured to translate the driver from the returned position to the extended position. The return cord assembly is coupled to the driver and the structure and includes a spring and an elastomeric return cord that are employed to return the driver from the extended position to the retracted position.

Return cord assembly for a power tool

A contact trip assembly for a power nailer, wherein a contact member includes a curved portion that loops rearwardly towards a handle of the nailer. Also provided is an adjustment assembly including an adjustment plate and a pinion gear, a trigger that is slidably engageable within a housing of the tool, a trigger lock including a ring element, an anti-discharge mechanism including a stop member, and a contact trip lock.

Contact trip mechanism for nailer

A tool with a driver and a motor assembly for selectively translating the driver along an axis. The driver has a driver blade and a driver body that is coupled the driver blade. The driver body can be formed of titanium and can include an engagement surface with a plurality of teeth that matingly engage respective teeth that are formed on the edge of a flywheel that is associated with the motor assembly.

Driver configuration for a power tool

A driving tool, such as a fastening tool, with a driver, a motor, a flywheel driven by the motor, an actuator, an actuator member that is movable by the actuator, a trigger switch that is moveable by a trigger between an unactuated state and an actuated state, and a contact trip switch that is moveable by a contact trip between an unactuated state and an actuated state. The controller does not include power switches for controlling the operation of the motor and the actuator, but rather employs microswitches and control logic to determine when to activate the motor assembly and the actuator.

Electronic fastening tool

A fastening tool having a contact trip switch, a trigger switch, a driver, a motor assembly and a controller. The controller is configured to selectively operate the motor assembly in response to inputs received from the contact trip switch and the trigger switch. The controller includes a mode selector switch having a first switch setting, which can permit bump-feed operation of the fastening tool, and a second switch setting, which prohibits bump-feed operation of the fastening tool.

Fastening tool with mode selector switch

A hand-held power tool with a housing with a handle arranged along an axis, a trigger disposed in the housing and configured to operate the hand-held power tool, first and second sets of guide tracks coupled to one of the housing and the trigger and first and second sets of guides coupled to the other. The trigger, which includes a contact surface that is configured to be contacted by a finger of a user of the hand-held power tool, is movable between an extended position and a retracted position. The first and second sets of guide tracks guide the first and second sets of guides, respectively, such that movement of the trigger from the extended position to the retracted position causes the contact surface to move in a substantially constant direction having a first directional component and a second directional component, the first directional component being generally perpendicular to the axis of the handle and the second directional component being generally parallel to the axis of the handle.

Trigger configuration for a power tool

A fastening tool including a housing, a magazine connected to the housing for storing a fastener, a driving mechanism disposed within the housing for driving the fastener into a workpiece, a trigger assembly pivotally attached to the housing for activating the driving mechanism, the trigger assembly comprising a main trigger, pivotally attached to the housing and a supplemental trigger pivotally attached to the main trigger; and a contact trip assembly comprising an upper contact trip contacting the supplemental trigger, a lower contact trip connected to the upper contact trip, wherein the upper and lower contact trips have teeth that mesh together for locking the upper and lower contact trips.

Growing community of inventors

York, PA, United States of America

Charles L Bradenbaugh