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US 12,180,672 B2Granted
Electrically powered power machine
AssigneeDoosan Bobcat North America, Inc.
InventorsBrent Durkin, John Pfaff, Dennis Agnew, Matthew Sagaser
Life of this patent
Estimating the term…
Abstract
A power machine can include a frame, a lift arm, and one or more electrical devices for control of one or more work elements. An electrical tilt actuator can be secured to the lift arm to change an attitude of an implement carrier, an electrical lift actuator can be secured to the frame to raise and lower a lift arm, an electrical drive motor can be mounted to a track frame to move a track, or a battery assembly and electrical control module can be secured to the frame, including rearward of an operator station.
Claims30
A power machine for movably operating an implement, the power machine comprising:
- a main frame;
- and
- a lift arm structure supported by the main frame, the lift arm structure comprising:
- a lift arm extending along a lateral side of the main frame, with a proximal end of the lift arm movably secured to the main frame and a distal end of the lift arm that defines a tilt actuator pocket, the tilt actuator pocket having a channel that tapers so that a distal end of the channel has a smaller lateral width than a proximal end of the channel;
- one or more of an implement carrier or an implement movably secured to the distal end the lift arm;
- an electrical tilt actuator, secured to the lift arm along the lateral side of the main frame with a pinned connection within a proximal end of the tilt actuator pocket, the electrical tilt actuator being configured to be controllably extended and retracted to change an attitude of the one or more of the implement carrier or the implement;
- and
- an electrical lift actuator, secured at a first end to the main frame and at a second end to the lift arm, the electrical lift actuator being configured to be controllably extended and retracted to raise and lower the lift arm.
5 more elements
A power machine comprising:
- a frame;
- a lift arm movably secured to the frame to extend along a lateral side of the frame;
- an electrical tilt actuator, secured to the lift arm and one or more of an implement or an implement carrier, the electrical tilt actuator being secured to the lift arm within a tilt actuator pocket that defines a tapered channel on the lift arm, with a distal end of the tapered channel having a smaller cross-sectional area than a proximal end of the tapered channel, and the electrical tilt actuator being configured to be controllably extended and retracted to change an attitude of the one or more of the implement or the implement carrier;
- and
- an electrical lift actuator, secured at a first end to the frame and at a second end to the lift arm, the electrical lift actuator being configured to be controllably extended and retracted to raise and lower the lift arm;
- and
- an electrical power source that is configured to power the electrical tilt actuator and the electrical lift actuator.
4 more elements
A power machine for movably operating an implement, the power machine comprising:
- a frame;
- and
- a lift arm structure that is supported by the frame, the lift arm structure comprising:
- a lift arm extending along a lateral side of the frame, with a proximal end of the lift arm movably secured to the frame;
- one or more of an implement carrier or an implement movably secured to a distal end the lift arm;
- an electrical tilt actuator, secured to the lift arm within a proximal end of a tilt actuator pocket that narrows toward a distal end of the tilt actuator pocket that is opposite the proximal end, the electrical tilt actuator being configured to be controllably extended and retracted to change an attitude of the one or more of the implement carrier or the implement;
- and
- an electrical lift actuator, secured at a first end to the frame and at a second end to the lift arm, the electrical lift actuator being configured to be controllably extended and retracted to raise and lower the lift arm.
5 more elements
A power machine for movably operating an implement, the power machine comprising:
- a frame;
- and
- a lift arm structure that is supported by the frame, the lift arm structure comprising:
- a lift arm extending along a lateral side of the frame, with a proximal end of the lift arm movably secured to the frame;
- one or more of an implement carrier or an implement movably secured to a distal end the lift arm;
- and
- an electrical tilt actuator, secured to the lift arm within a tilt actuator pocket proximate a front portion of the frame, the tilt actuator pocket defining an internal cross-sectional area that decreases toward the distal end of the lift arm, the electrical tilt actuator being configured to be controllably extended and retracted to change an attitude of the one or more of the implement carrier or the implement.
4 more elements
Dependencies are inferred from the claim text.