Power tool and a transmission therefor
AssigneeBlack & Decker Inc.
InventorsJörg ROTH, Michael KUNZ, Rafael GOTTSCHLING
Life of this patent
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Abstract
A power tool including a housing and a motor mounted in the housing having a drive shaft. A transmission is mounted in the housing having an input shaft operatively coupled to the drive shaft of the motor and an output shaft operatively coupled to a tool holder. The transmission includes at least a first gear and a second gear configured to transmit torque from the motor to the tool holder. A first part of the transmission is mounted within a first grease chamber and a second part of the transmission is mounted within a second grease chamber.
Claims20
A power tool comprising:
- a housing;
- a motor mounted in the housing having a drive shaft;
- a transmission mounted in the housing having an input shaft operatively coupled to the drive shaft of the motor and an output shaft operatively coupled to a tool holder;
- wherein the transmission comprises at least a first gear and a second gear configured to transmit torque from the motor to the tool holder;
- wherein a first part of the transmission is mounted within a first grease chamber and a second part of the transmission is mounted within a second grease chamber.
A power tool comprising:
- a housing;
- a motor in the housing, the motor having a drive shaft;
- a transmission in the housing, the transmission having an input shaft operatively coupled to the drive shaft of the motor and an output shaft operatively coupled to a tool holder;
- wherein the transmission comprises a first gear and a second gear configured to transmit torque from the motor to the tool holder;
- an intermediate shaft comprising a first idling gear and a second idling gear configured to respectively engage the first gear and the second gear.
A power tool comprising:
- a housing;
- a motor in the housing, the motor having a drive shaft;
- a transmission in the housing, the transmission having an input shaft operatively coupled to the drive shaft of the motor and an output shaft operatively coupled to a tool holder;
- wherein the transmission comprises a first gear and a second gear configured to transmit torque from the motor to the tool holder;
- wherein a first part of the transmission is in a first grease chamber and a second part of the transmission is in a second grease chamber;
- wherein the first grease chamber and the second grease chamber are defined at least in part by one or more walls of the housing;
- and
- wherein the first grease chamber and the second grease chamber are in fluid communication.
Dependencies are inferred from the claim text.