Patent classifications
B23D49/16
Reciprocating saw
A reciprocating saw includes a housing assembly, a motor, and a drive mechanism. The drive mechanism includes a gear coupled to and driven by a pinion of the motor for rotation about a first axis. The gear is vertically-oriented within the housing assembly and has an outer periphery. The drive mechanism also includes a spindle reciprocatable relative to the housing assembly, a connecting rod having a first end coupled to the gear and a second end coupled to the spindle to transmit rotation of the gear into reciprocation of the spindle, and a counterweight rotatably coupled to the housing assembly for rotation about the first axis within the outer periphery of the gear. The counterweight is also coupled to the first end of the connecting rod such that the counterweight is moved in a substantially opposite direction than the spindle to counterbalance reciprocation of the spindle.
JIGSAW
A power tool includes a housing having a base configured to support the power tool relative to a workpiece. The power tool includes a handle coupled to the housing. The handle defines a longitudinal axis and includes a first portion positioned between the longitudinal axis and the base and a second portion opposite the first portion along the longitudinal axis. The power tool includes an activation switch coupled to a side surface of the housing. The activation switch is slidable in a direction parallel with a switch axis that intersects the longitudinal axis from a deactivated state, in which the drive system is non-operable, to an activated state, in which the drive system is operable. The activation switch is slidable toward the second portion of the handle from an intersection point between the switch axis and the longitudinal axis.
BLADE CLAMP FOR POWER TOOL
A blade clamp for use with a power tool having a reciprocating spindle. The blade clamp comprises a cover threaded to the spindle for relative axial movement thereto in response to rotation of the cover relative to the spindle, an ejector pin positioned within the spindle, and a spring coupling the cover and the spindle. The spring biases the cover toward a first rotational position relative to the spindle coinciding with a locked configuration of the blade clamp. The cover is rotatable against the bias of the spring toward a second rotational position relative to the spindle coinciding with an unlocked configuration of the blade clamp. In the unlocked configuration, the ejector pin maintains the cover in the second rotational position. In response to insertion of a blade into the spindle, the blade clamp is automatically adjustable from the unlocked configuration to the locked configuration.
Reciprocating saw, such as a jigsaw
A jigsaw includes a housing having a body portion and a handle portion. The body portion has a forward end and a rearward end. The jigsaw also includes a motor positioned within the body portion of the housing. The motor is located forward of the handle portion. The jigsaw further includes a drive mechanism positioned within the body portion of the housing. The drive mechanism is coupled to the motor for driving a saw blade in a reciprocating motion. The jigsaw also includes a shoe assembly coupled to the body portion of the housing between the forward end and the rearward end.
SHOE ACCESSORY FOR A SAW
A band saw kit including a band saw and an angle guide. The band saw includes at least one wheel for supporting a saw blade, a motor operable to drive the blade to cut a workpiece, a frame, and a workpiece bumper coupled to the frame. The workpiece bumper includes a slot configured to receive the blade, a first engaging surface defining a first plane, and is configured to be generally perpendicular to the blade as the blade passes through the slot. An angle guide is configured to be coupled to the workpiece bumper and includes a second engaging surface for engaging a workpiece. The second engaging surface defines a second plane. A cut angle is defined by an angle between the second plane and the first plane when the angle guide is coupled to the workpiece bumper.
RECIPROCATING SAW
A power tool includes a housing, a motor, and a drive mechanism. The drive mechanism includes a driven gear that is rotated by the motor. The driven gear is vertically-oriented within the housing and has an upper portion and a lower portion. The drive mechanism also includes a connecting rod coupled to the driven gear to translate rotary motion of the driven gear into reciprocating motion, and an output shaft coupled to the connecting rod to reciprocate relative to the housing through a cutting stroke and a return stroke. The drive mechanism further includes a counterweight coupled to the driven gear for rotation with the driven gear. The counterweight moves through the upper portion of the driven gear during the cutting stroke of the output shaft, and moves through the lower portion of the driven gear during a return stroke of the output shaft.
Jigsaw
A jigsaw includes a jigsaw main body, a handle, and a battery. The jigsaw main body includes a housing, a motor disposed inside the housing, and a battery mounting portion having a first mounting surface facing downward. The handle is disposed at an upper portion of the jigsaw main body and above the motor. The battery has a second mounting surface and supplies the motor with an electric power. The battery is slidable along the first mounting surface and mountable to the battery mounting portion with the first and second mounting surfaces facing each other.
ONE-HANDED BLADE CHANGE MECHANISM FOR A POWER TOOL
A blade change mechanism configured to attach a blade to a transmission rod of a power tool, the blade change mechanism including a support body, a blade retention structure, and a component. The blade retention structure is coupled to the support body and includes a blade retention component movable to hold the blade in a locked state in response to engagement of the blade with the blade change mechanism on insertion of the blade. The component is movable to vary the blade retention component to hold the blade in the locked state. The component is further movable to vary the blade retention component to an unlocked state in which the blade retention structure is disengaged from the blade. The blade retention structure is held in the unlocked state absent the blade being fully inserted into the blade change mechanism.
ONE-HANDED BLADE CHANGE MECHANISM FOR A POWER TOOL
A blade change mechanism configured to attach a blade to a transmission rod of a power tool, the blade change mechanism including a support body, a blade retention structure, and a component. The blade retention structure is coupled to the support body and includes a blade retention component movable to hold the blade in a locked state in response to engagement of the blade with the blade change mechanism on insertion of the blade. The component is movable to vary the blade retention component to hold the blade in the locked state. The component is further movable to vary the blade retention component to an unlocked state in which the blade retention structure is disengaged from the blade. The blade retention structure is held in the unlocked state absent the blade being fully inserted into the blade change mechanism.
RECIPROCATING SAW
A reciprocating saw includes a housing defining a motor housing portion, and a motor positioned in the motor housing portion, the motor having a motor output shaft defining a rotational axis, and a motor activation switch within the motor housing portion and adjacent the motor. The reciprocating saw also includes a transmission is positioned downstream of the motor and has a sawbar connectable to a saw blade. The transmission converts a rotational input provided by the motor shaft to a reciprocating output of the sawbar along a reciprocating axis that is either coaxial or parallel with the rotational axis.