Drivetrain for a mixer with reduced operating noise
AssigneeHaier US Appliance Solutions, Inc.
InventorEdward Simeon Chupka
Life of this patent
Estimating the term…
Abstract
A drivetrain for coupling a motor to a mixer shaft within a mixer includes a sun gear connectable to a rotor of the motor. The drivetrain also includes a plurality of stepped planetary gears. Each of the stepped planetary gears includes a first tooth section and a second tooth section. A first ring gear is mounted such that the first ring gear is fixed. The first ring gear and the sun gear are meshed with the stepped planetary gears at the first tooth section. A second ring gear is meshed with the stepped planetary gears at the second tooth section. The sun gear, the stepped planetary gears, the first ring gear, and the second ring gear collectively form a single stage planetary gear set of the drivetrain.
Claims20
A stand mixer, comprising:
- a base;
- a head pivotally mounted to the base;
- a motor disposed within the head, the motor comprising a housing with a machined radial surface;
- a mixer shaft rotatably mounted on the head;
- and
- a drivetrain coupling the motor to the mixer shaft such that the mixer shaft is rotatable by the motor, a single stage planetary gear set of the drivetrain comprising
- a sun gear connected to a rotor of the motor,
- a plurality of stepped planetary gears, each of the stepped planetary gears comprising a first tooth section and a second tooth section,
- a first ring gear mounted to the head such that the first ring gear is fixed relative to the head, the first ring gear and the sun gear meshed with the stepped planetary gears at the first tooth section, and
- a second ring gear meshed with the stepped planetary gears at the second tooth section,
- wherein the first ring gear is formed with powdered metal, and a radial surface of the first ring gear faces and contacts the machined radial surface of the housing of the motor.
A stand mixer, comprising:
- a head disposed above a mixing zone that is configured for receipt of a mixing bowl;
- a motor disposed within the head, the motor comprising a housing with a machined radial surface;
- a mixer shaft rotatably mounted on the head;
- and
- a drivetrain coupling the motor to the mixer shaft such that the mixer shaft is rotatable by the motor, a single stage planetary gear set of the drivetrain comprising
- a sun gear connected to a rotor of the motor,
- a plurality of stepped planetary gears, each of the stepped planetary gears comprising a first tooth section and a second tooth section,
- a first ring gear mounted to the head such that the first ring gear is fixed relative to the head, the first ring gear and the sun gear meshed with the stepped planetary gears at the second tooth section, and
- a second ring gear meshed with the stepped planetary gears at the first tooth section,
- wherein the first ring gear is formed with powdered metal, and a radial surface of the first ring gear faces and contacts the machined radial surface of the housing of the motor.
Dependencies are inferred from the claim text.