Abstract: A handle assembly for a power tool is disclosed. The handle assembly includes a base adapted to be mounted to a body of a power tool, and a handle having first and second mounting portions pivotably mounted to respective ends of the base. An elongate torsion spring has a first part mounted to the base and a respective second part mounted to each mounting portion such that pivoting of the handle relative to the base member causes twisting of the torsion member to resiliently oppose pivoting of the handle relative to the base portion.

Abstract: A hammer-drill including a body in which is mounted a motor and a hammer mechanism which is driven by the motor; a tool holder mounted on the front of the body and which is capable of holding a cutting tool, the hammer mechanism being capable of imparting impacts to the cutting tool, when held by the tool holder; a rear handle, moveably mounted onto the rear of the body via at least one movement control mechanism and which is capable of moving towards or away from the body; a biasing mechanism which biases the rear handle away from the body.

Abstract: A mounting assembly for moveably mounting a handle of a power tool to a housing of the power tool is disclosed. The mounting assembly has a metal bar (324) mounted to a housing (290) of the power tool and a vibration damper (332) mounted to a handle (294) of the power tool and slidably mounted to the metal bar. The vibration damper includes a vibration damping member (344) for damping vibrations tending to cause the vibration damper to pivot relative to the metal bar about an axis substantially parallel to the longitudinal axis of the metal bar.

Abstract: A motorized hammer has a body and a tool holder which is mounted on the front of the body and is capable of imparting impacts via the tool in the holder. A rear handle is, moveably mounted to the rear of the body via at least one movement control mechanism which is capable of moving towards or away from the body. A biasing mechanism biases the rear handle away from the body and each movement control mechanism includes a first mount. A rod having a longitudinal axis is rigidly connected at one of it ends to the first mount. A second mount slidingly engages with the rod at two distinct points only along its length to allow the rod to slide relative to the second mount in a direction parallel to the longitudinal axis. The second mount prevents the rod from moving in a direction perpendicular to the longitudinal axis.

Abstract: A hammer drill having a housing and a rear handle moveably mounted to a rear of the housing by means of at least one movement control mechanism is disclosed. A bellows is fixed to the handle and slidably mounted to a protrusion on the housing to prevent access to the movement control mechanism.

Abstract: A hammer-drill including a body in which is mounted a motor and a hammer mechanism which is driven by the motor; a tool holder mounted on the front of the body and which is capable of holding a cutting tool, the hammer mechanism being capable of imparting impacts to the cutting tool, when held by the tool holder; a rear handle, moveably mounted onto the rear of the body via at least one movement control mechanism and which is capable of moving towards or away from the body; a biasing mechanism which biases the rear handle away from the body.

Abstract: A handle assembly for a power tool is disclosed. The handle assembly includes a base adapted to be mounted to a body of a power tool, and a handle having first and second mounting portions pivotably mounted to respective ends of the base. An elongate torsion spring has a first part mounted to the base and a respective second part mounted to each mounting portion such that pivoting of the handle relative to the base member causes twisting of the torsion member to resiliently oppose pivoting of the handle relative to the base portion.

Abstract: A mounting apparatus for mounting a handle to a power tool is disclosed. The apparatus comprises a base for supporting a handle and engaging a body of the power tool, a flexible strap for engaging the base at first and second locations to form a loop for retaining the support in engagement with the body of the power tool, and a clamping mechanism comprising a pair of wedges for engaging the base and the flexible strap, and a bolt for retaining the wedges in position relative to the base. A knob enables movement of the wedges relative to each other in a first direction to reduce the size of the loop and in a second direction to increase the size of the loop.

Abstract: A handle housing for a handle for a power tool, the handle housing having a first housing part; and a second housing part adapted to be mounted to the first housing part and subjected to a bending stress when mounted to said first housing part, the said first and second housing parts defining a chamber for accommodating one or more components of the power tool.

Abstract: A hammer drill comprising: a body 2 in which is mounted a motor 48 and a hammer mechanism 46 which is driven by the motor 48 when the motor 48 is activated; a tool holder 8 mounted on the front of the body 2 and which is capable of holding a cutting tool 12, the hammer mechanism 46, when driven by the motor 48, capable of imparting impacts to the cutting tool 12, when held by the tool holder 8; a rear handle 4, moveably mounted on to the rear of the body 2 via at least one movement control mechanism and which is capable of moving towards or away from the body 2; a biasing mechanism 104 which biases the rear handle 4 away from the body 2; wherein each movement control mechanism comprises: a first mount; a rod 106, having a longitudinal axis 107, rigidly connected at one of it ends to the first mount; a second mount which slidingly engages with the rod 106 at two distinct points only along its length to allow the rod 106 to slide relative to the second mount in a direction parallel to the longitudinal axis 107

Abstract: A mounting assembly for moveably mounting a handle of a power tool to a housing of the power tool is disclosed. The mounting assembly has a metal bar (324) mounted to a housing (290) of the power tool and a vibration damper (332) mounted to a handle (294) of the power tool and slidably mounted to the metal bar. The vibration damper includes a vibration damping member (344) for damping vibrations tending to cause the vibration damper to pivot relative to the metal bar about an axis substantially parallel to the longitudinal axis of the metal bar.

Abstract: A handle housing for a handle for a power tool, the handle housing having a first housing part; and a second housing part adapted to be mounted to the first housing part and subjected to a bending stress when mounted to said first housing part, the said first and second housing parts defining a chamber for accommodating one or more components of the power tool.

Abstract: A powered hammer includes a housing, a tool holder coupled to the housing and configured to hold a tool, a motor within the housing, a cylinder disposed within the housing, and a piston slideably mounted within the cylinder. A drive mechanism converts rotary output of the motor into a reciprocating motion of the piston. The drive mechanism includes a crank shaft rotationally driven by the motor, a drive pin eccentrically mounted on the crank shaft, and a con rod with a first end connected to the drive pin and a second end connected to the piston. A ram is slideably mounted forward of the piston that is reciprocatingly driven by the piston. A beat piece is slideably mounted forward of the ram. The beat piece is repetitively struck by the reciprocating ram, which in turn repetitively strikes an end of the tool when held in the tool holder to transfer the momentum of the ram to the tool. Lubrication fluid covers at least part of the drive mechanism.

Abstract: A powered hammer includes a housing, a tool holder coupled to the housing and configured to hold a tool, a motor within the housing, a cylinder disposed within the housing, and a piston slideably mounted within the cylinder. A drive mechanism converts rotary output of the motor into a reciprocating motion of the piston. The drive mechanism includes a crank shaft rotationally driven by the motor, a drive pin eccentrically mounted on the crank shaft, and a con rod with a first end connected to the drive pin and a second end connected to the piston. A ram is slideably mounted forward of the piston that is reciprocatingly driven by the piston. A beat piece is slideably mounted forward of the ram. The beat piece is repetitively struck by the reciprocating ram, which in turn repetitively strikes an end of the tool when held in the tool holder to transfer the momentum of the ram to the tool. Lubrication fluid covers at least part of the drive mechanism.

Abstract: A powered hammer includes a housing, a tool holder coupled to the housing and configured to hold a tool, a motor within the housing, a cylinder disposed within the housing, and a piston slideably mounted within the cylinder. A drive mechanism converts rotary output of the motor into a reciprocating motion of the piston. The drive mechanism includes a crank shaft rotationally driven by the motor, a drive pin eccentrically mounted on the crank shaft, and a con rod with a first end connected to the drive pin and a second end connected to the piston. A ram is slideably mounted forward of the piston that is reciprocatingly driven by the piston. A beat piece is slideably mounted forward of the ram. The beat piece is repetitively struck by the reciprocating ram, which in turn repetitively strikes an end of the tool when held in the tool holder to transfer the momentum of the ram to the tool. Lubrication fluid covers at least part of the drive mechanism.

Abstract: A powered hammer includes a housing, a tool holder coupled to the housing and configured to hold a tool, a motor within the housing, a piston slideably mounted within the housing, and a drive mechanism that converts rotary output of the motor into a reciprocating motion of the piston. A ram is slideably mounted within the housing, forward of the piston, and is reciprocatingly driven by the piston. A beat piece is slideably mounted forward of the ram and is repetitively struck by the reciprocating ram. The beat piece in turn repetitively strikes an end of the tool when held in the tool holder to transfer the momentum of the ram to the tool. A tool holder connector includes at least one bolt and at least one nut that connect the tool holder to the housing. A least one of the nuts includes a helical wire insert located within a thread of the nut and which engages with a thread of the bolt.