초록 ▼

A power tool is provided which includes a motor assembly having a rotatable motor shaft mechanism, and a motor control coupled to the motor assembly and operable between a normal off condition de-energizing the motor and an on condition energizing the motor. The tool includes a rotatable tool shaft

A power tool is provided which includes a motor assembly having a rotatable motor shaft mechanism, and a motor control coupled to the motor assembly and operable between a normal off condition de-energizing the motor and an on condition energizing the motor. The tool includes a rotatable tool shaft mechanism, and a clutch shiftable between a normal disengaged condition decoupling the motor shaft mechanism from the tool shaft mechanism and an engaged condition coupling the motor shaft mechanism to the tool shaft mechanism. A trigger member is engageable with both the motor control and the clutch and is moveable between a first position, wherein the motor control is in its off condition and the clutch is in its disengaged condition, and a second position holding the motor control in its on condition and the clutch in its engaged condition for driving the tool shaft mechanism. The trigger member is designed to prevent premature energization of the motor assembly.

대표청구항 ▼

[ What is claimed is:] [12.]12. A power tool comprising:a motor assembly having a rotatable motor shaft mechanism;a motor control coupled to the motor assembly and operable between a normal off condition de-energizing the motor and on condition energizing the motor;a rotatable tool shaft mechanism;a

[ What is claimed is:] [12.]12. A power tool comprising:a motor assembly having a rotatable motor shaft mechanism;a motor control coupled to the motor assembly and operable between a normal off condition de-energizing the motor and on condition energizing the motor;a rotatable tool shaft mechanism;a clutch having clutch portions including a first clutch portion coupled to the motor shaft mechanism and axially movable with respect thereto and a second clutch portion coupled to the tool shaft mechanism and axially movable with respect thereto,a trigger member engageable with both the motor control and the second clutch portion, and moveable between a first position, wherein the motor control is in its off condition and the clutch is in its disengaged condition, and a second position holding the motor control in its on condition and the clutch in its engaged condition for driving the tool shaft mechanism.