B23D49/16

Spindle for a reciprocating saw

A reciprocating saw includes a housing, a motor positioned within the housing, a drive shaft defining a longitudinal axis, and a spindle positioned substantially within the housing and coupled to a wobble plate. The spindle includes a throughbore formed by a flow welding process, wherein the throughbore extends through the spindle to receive the wobble plate.

RECIPROCATING SAW
20210187637 · 2021-06-24 ·

A reciprocating saw includes a housing, a motor positioned within the housing, and a shoe coupled to the housing. The shoe is configured to engage a workpiece. The reciprocating saw also includes a proximity sensor configured to detect the workpiece when engaged with the shoe. In response to the proximity sensor detecting formation of a gap between the shoe and the workpiece, the proximity sensor is operable to deactivate the motor.

RECIPROCATING SAW
20210187637 · 2021-06-24 ·

A reciprocating saw includes a housing, a motor positioned within the housing, and a shoe coupled to the housing. The shoe is configured to engage a workpiece. The reciprocating saw also includes a proximity sensor configured to detect the workpiece when engaged with the shoe. In response to the proximity sensor detecting formation of a gap between the shoe and the workpiece, the proximity sensor is operable to deactivate the motor.

RECIPROCATING SAW

A reciprocating saw includes a housing, a motor, and a drive assembly. The motor is positioned within the housing and includes a stator assembly with a stator body and a rotor assembly with a motor shaft and a rotor ring that surrounds the stator body. The rotor assembly is rotatable relative to the stator assembly about a motor axis. The drive assembly is positioned within the housing and coupled to the motor. The drive assembly includes a spindle configured to reciprocate along a tool axis that is perpendicular to the motor axis.

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. The housing the base and a second portion opposite the first portion and extending away from the base. 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 housing from an intersection point between the switch axis and the longitudinal axis.

RECIPROCATING SAW
20210107076 · 2021-04-15 ·

A reciprocating saw 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. The drive mechanism also includes a drive arm coupled to the driven gear to translate rotary motion of the driven gear into reciprocating motion, and an output shaft coupled to the drive arm to reciprocate relative to the housing along a spindle axis 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 toward the spindle axis during a start of the cutting stroke of the output shaft and moves away from the spindle axis during a start of the return stroke of the output shaft.

BRUSHLESS MOTOR, ELECTRIC WORK MACHINE, AND BRUSHLESS-MOTOR MANUFACTURING METHOD
20230412040 · 2023-12-21 ·

A brushless motor (6) includes: a rotor (25), which rotates about a rotational axis (AX); and a stator (24), which is disposed around the rotor and comprises one or more coils (29). The rotor comprises a rotor core (31) and a rotor shaft (33), which is disposed in a shaft hole (60) of the rotor core. The rotor shaft includes: a thinner-diameter force-fitting segment (82), which is force-fit into the shaft hole with a first amount of force-fitting interference; and a thicker-diameter force-fitting segment (79), which is disposed at a location different from that of the thinner-diameter force-fitting segment in a front-rear direction parallel to the rotational axis and which is force-fit into the shaft hole with a second amount of force-fitting interference that is larger than the first amount of force-fitting interference.

BRUSHLESS MOTOR, ELECTRIC WORK MACHINE, AND BRUSHLESS-MOTOR MANUFACTURING METHOD
20230412040 · 2023-12-21 ·

A brushless motor (6) includes: a rotor (25), which rotates about a rotational axis (AX); and a stator (24), which is disposed around the rotor and comprises one or more coils (29). The rotor comprises a rotor core (31) and a rotor shaft (33), which is disposed in a shaft hole (60) of the rotor core. The rotor shaft includes: a thinner-diameter force-fitting segment (82), which is force-fit into the shaft hole with a first amount of force-fitting interference; and a thicker-diameter force-fitting segment (79), which is disposed at a location different from that of the thinner-diameter force-fitting segment in a front-rear direction parallel to the rotational axis and which is force-fit into the shaft hole with a second amount of force-fitting interference that is larger than the first amount of force-fitting interference.

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
10960475 · 2021-03-30 · ·

A power tool including a housing having a handle configured to be grasped by a user, a motor supported by the housing, a driving gear rotated by the motor, and a driven gear engaging the driving gear to be rotated by the driving gear about a rotation axis. The power tool also includes a pin extending from the driven gear and offset from the rotation axis and a spindle having a yoke coupled to the pin to translate rotation of the driven gear into reciprocating motion of the spindle. A notch is formed in an outer periphery of the yoke to provide clearance for the driving gear as the spindle is driven by the pin.