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US 11,819,464 B2Granted
Wheelchair suspension
AssigneeInvacare Corporation
InventorsRobert Bekoscke, Damon Jurkiewicz
Life of this patent
Estimating the term…
Abstract
A suspension for a vehicle is provided. The suspension includes, for example, a frame, at least one drive assembly and at least one caster pivot arm. The at least one drive assembly and the at least one caster pivot arm are pivotally connected to the frame such that the drive assembly and the front caster pivot arm are pivotable relative to one another.
Claims20
A method of traversing an obstacle with a wheelchair, comprising:
- providing a frame having a first pivot axis and a second pivot axis that is forward of the first pivot axis and vertically offset from the first pivot axis;
- pivoting a front caster curved pivot arm about the first pivot axis;
- pivoting a drive assembly mount about the second pivot axis;
- moving a link connected to the front caster pivot arm and extending rearward to the drive assembly mount;
- and
- wherein the pivoting of the front caster pivot arm is in response to movement of the link.
3 more elements
A method of traversing an obstacle with a wheelchair, comprising:
- providing a frame having a first pivot axis and a second pivot axis that is forward of the first pivot axis and vertically offset from the first pivot axis;
- pivoting a front caster pivot arm about the first pivot axis;
- pivoting a drive assembly mount about the second pivot axis;
- moving a link connected to the front caster pivot arm and extending rearward to the
- drive assembly mount;
- and
- wherein the pivoting of the front caster pivot arm is in response to movement of the link.
4 more elements
A method of traversing obstacles by a wheelchair comprising:
- providing a frame having a first pivot axis and a second pivot axis that is forward of the first pivot axis and vertically offset from the first pivot axis;
- pivoting a front caster pivot arm about the first pivot axis;
- pivoting a drive assembly mount about the second pivot axis;
- moving link connected to the front caster pivot arm and extending rearward to the drive assembly mount;
- and
- wherein the pivoting of the front caster pivot arm and pivoting of the drive assembly mount comprises pivoting a body of the front caster pivot arm and a body of the drive assembly across each other.
3 more elements
Dependencies are inferred from the claim text.