Abstract: A power tool may include a motor and a drive shaft having a first end coupled to the motor and a second end eccentrically coupled to a platen by a retainer bearing and eccentric sleeve. A counterweight component may be coupled to the second end of the drive shaft to counteract imbalance generated by rotation of the retainer bearing, eccentric sleeve and platen. The counterweight component may include a counterweight coupled to the second end of the drive shaft, between the eccentric sleeve and the platen. Alignment of the counterweight may be offset with respect to a centerline of the drive shaft to counteract vibration generated due to interaction of the platen with a workpiece. The counterweight component may also include a counterweight mass member coupled to a sector of the counterweight to counteract vibration generated due to interaction of the platen with a workpiece.

Abstract: A vibration dampening handle for a powered apparatus includes an elongated gripping member having first and second opposite ends and a longitudinal axis extending through the first and second ends, and a wall defining an inner bore and having an inner surface. The inner bore extending along the longitudinal axis at least partially through the gripping member, and opens on at least the first end of the gripping member. A weighted mass is disposed at the second free cantilevered end of the gripping member. An elongate elastic beam member is attached to the gripping member. A portion of the beam member is disposed within the inner bore and is spaced apart from the inner surface. The beam member further includes a first end that extends beyond the first end of the gripping member and includes a fastening member adapted to connect the handle to the powered apparatus.

Abstract: A vibration dampening handle for a powered apparatus includes an elongate gripping member including a first end, a second end opposite the first end, a longitudinal axis extending through the first end and the second end, and a wall defining a bore having an inner surface. The bore extends along the longitudinal axis at least partially through the gripping member, and opens on the first end of the gripping member. A mass is disposed at the second end of the gripping member. An elastic beam is attached to or integral with the gripping member. The beam extends along the longitudinal axis and a portion of the beam is disposed within the bore and is spaced apart from the inner surface. The beam includes a first end that extends beyond the first end of the gripping member and includes a fastening member adapted to connect the handle to the powered apparatus.

Abstract: A vibration dampening handle for a powered apparatus includes an elongate gripping member including a first end, a second end opposite the first end, a longitudinal axis extending through the first end and the second end, and a wall defining an inner bore and having an inner surface. The inner bore extends along the longitudinal axis at least partially through the gripping member, and opens on at least the first end of the gripping member. A weighted mass is disposed at the second end of the gripping member. An elongate elastic beam member is one of attached to and integral with the gripping member. The beam member extends along a region of the longitudinal axis and a portion of the beam member is disposed within the inner bore and is spaced apart from the inner surface. The beam member further includes a first end that extends beyond the first end of the gripping member and includes a fastening member adapted to connect the handle to the powered apparatus.

Abstract: A power tool includes a tool body, and the tool body is subject to vibration during operation of the power tool. The power tool also includes a handle adapted to be grasped by an operator of the power tool for controlling the motion of the power tool, and at least one coupling member, where each coupling member includes a first end coupled to the tool body and a second end coupled to the handle and a longitudinal axis between the first end and the second end.

Abstract: A vibration dampening handle for a powered apparatus includes an elongate gripping member including a first end, a second end opposite the first end, a longitudinal axis extending through the first end and the second end, and a wall defining an inner bore and having an inner surface. The inner bore extends along the longitudinal axis at least partially through the gripping member, and opens on at least the first end of the gripping member. A weighted mass is disposed at the second end of the gripping member. An elongate elastic beam member is one of attached to and integral with the gripping member. The beam member extends along a region of the longitudinal axis and a portion of the beam member is disposed within the inner bore and is spaced apart from the inner surface.

Abstract: A vibration dampening handle for a powered apparatus includes an elongate gripping member including a first end, a second end opposite the first end, a longitudinal axis extending through the first end and the second end, and a wall defining an inner bore and having an inner surface. The inner bore extends along the longitudinal axis at least partially through the gripping member, and opens on at least the first end of the gripping member. A weighted mass is disposed at the second end of the gripping member. An elongate elastic beam member is one of attached to and integral with the gripping member. The beam member extends along a region of the longitudinal axis and a portion of the beam member is disposed within the inner bore and is spaced apart from the inner surface. The beam member further includes a first end that extends beyond the first end of the gripping member and includes a fastening member adapted to connect the handle to the powered apparatus.