Personal mobility vehicle
First Claim
1. A personal mobility vehicle, comprising:
- a frame with a pair of parallel tracks for moving the vehicle, each track having a lower surface forming a drive plane for the tracks;
a plurality of drive wheels mounted within each track for driving the tracks forwardly and rearwardly;
a lift wheel interposed in each track forwardly of the drive wheels, said lift wheels positioned to form a flight on each track which slopes forwardly and upwardly from the drive plane of the tracks;
a rearward lift wheel interposed in each track rearwardly of the drive wheels, said rearward lift wheels positioned to form a flight on each track which slopes rearwardly and upwardly from the drive plane of the tracks; and
a seat operably mounted on the frame, and having support means for moving the seat about a generally horizontal axis normal to a longitudinal axis of the tracks, to maintain the seat in a generally upright position as the vehicle moves up or down a slope;
said seat operably mounted for rotational movement on a vertical axis, to permit the seat to swivel to the side;
said seat including a pair of armrests thereon and further including control means mounted on one of the armrests for controlling the tracks and the direction of movement of the vehicle.
1 Assignment
0 Petitions
Accused Products
Abstract
A personal mobility vehicle includes a frame with a pair of parallel tracks for moving the vehicle, the track having a lower surface forming a drive plane for the tracks. A seat is operably mounted on the frame, and has a support for moving the seat about a generally horizontal axis normal to a longitudinal axis of the tracks, to maintain the seat in a generally upright position as the vehicle moves up or down a slope. The seat is also operably mounted for rotational movement on a vertical axis, to permit the seat to swivel. A lifter arm is operably mounted on the frame, with a forward end pivotally connected to the frame at a location spaced above the drive plane, and a rearward end pivotal between a lowered position spaced below the drive plane and a storage position spaced above the drive plane. A cylinder selectively raises and lowers the lifter arm to assist the vehicle in traversing the upper end of a flight of stairs, in either the ascending or descending directions.
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Citations
6 Claims
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1. A personal mobility vehicle, comprising:
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a frame with a pair of parallel tracks for moving the vehicle, each track having a lower surface forming a drive plane for the tracks;
a plurality of drive wheels mounted within each track for driving the tracks forwardly and rearwardly;
a lift wheel interposed in each track forwardly of the drive wheels, said lift wheels positioned to form a flight on each track which slopes forwardly and upwardly from the drive plane of the tracks;
a rearward lift wheel interposed in each track rearwardly of the drive wheels, said rearward lift wheels positioned to form a flight on each track which slopes rearwardly and upwardly from the drive plane of the tracks; and
a seat operably mounted on the frame, and having support means for moving the seat about a generally horizontal axis normal to a longitudinal axis of the tracks, to maintain the seat in a generally upright position as the vehicle moves up or down a slope;
said seat operably mounted for rotational movement on a vertical axis, to permit the seat to swivel to the side;
said seat including a pair of armrests thereon and further including control means mounted on one of the armrests for controlling the tracks and the direction of movement of the vehicle. - View Dependent Claims (2, 3)
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4. A personal mobility vehicle, comprising:
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a frame with a pair of parallel tracks for moving the vehicle, each track having a lower surface forming a drive plane for the tracks;
a plurality of drive wheels mounted within each track for driving the tracks forwardly and rearwardly;
a lift wheel interposed in each track forwardly of the drive wheels, said lift wheels positioned to form a flight on each track which slopes forwardly and upwardly from the drive plane of the tracks;
a rearward lift wheel interposed in each track rearwardly of the drive wheels, said rearward lift wheels positioned to form a flight on each track which slopes rearwardly and upwardly from the drive plane of the tracks; and
a seat operably mounted on the frame, and having support means for moving the seat about a generally horizontal axis normal to a longitudinal axis of the tracks, to maintain the seat in a generally upright position as the vehicle moves up or down a slope;
said seat operably mounted for rotational movement on a vertical axis, to permit the seat to swivel to the side.
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5. A personal mobility vehicle, comprising:
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a frame with a pair of parallel tracks for moving the vehicle, each track having a lower surface forming a drive plane for the tracks;
a seat operably mounted on the frame, and having support means for moving the seat about a generally horizontal axis normal to a longitudinal axis of the tracks, to maintain the seat in a generally upright position as the vehicle moves up or down a slope;
said seat operably mounted for rotational movement on a vertical axis, to permit the seat to swivel to the side; and
a retractable stabilizer mounted to the frame and operable to selectively extend a roller on a rod rearwardly from the frame, said rod operable between an extended position located to prevent the vehicle from tipping over rearwardly during an ascent up a steep slope, and a retracted position. - View Dependent Claims (6)
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Specification