US 12,719,331 B2 · Battery-powered stand-alone motor unit

Abstract

A method of assembling a stand-alone motor unit and a piece of power equipment includes moving the motor unit in a first direction onto the piece of power equipment, such that a protrusion of the piece of power equipment is received in a slot of the motor unit. The method further comprises moving the motor unit along the piece of power equipment in a second direction that is perpendicular to the first direction, such that the protrusion moves within the slot from a first position to a second position, in which the protrusion is inhibited from moving in a direction opposite the first direction. The method further comprises coupling a power take-off shaft of the motor unit to a rotational input of the piece of power equipment, such that torque from the motor unit can be transferred to the rotational input to operate the piece of power equipment.

Claims13

Dependent claims

A power equipment assembly comprising:

a stand-alone motor unit including
a housing,
an electric motor arranged in the housing,
a battery pack to provide power to the motor, and a gear train receiving torque from the motor and including a drive gear having a passage with a first plurality splines and a plurality of detents biased toward the passage;
and
a power equipment unit including a shaft that is removably receivable in the passage of the drive gear, the shaft including a circumferential recess and a second plurality of splines configured to mate with the first plurality of splines when the shaft is received in the passage, such that the shaft is coupled for rotation with the drive gear and the power equipment unit can be driven by the stand-alone motor unit,
wherein when the shaft is received in the passage, the detents are biased into the circumferential recess of the power take-off shaft, inhibiting removal of the shaft from the passage of the drive gear.

4 more elements

Dependencies are inferred from the claim text.

Battery-powered stand-alone motor unit

Life of this patent

Battery-powered stand-alone motor unit

Life of this patent

Abstract

Claims13