Elevated height wheelchair
AssigneePride Mobility Products Corporation
InventorsJames P. Mulhern, Stephen J. Antonishak
Life of this patent
Estimating the term…
Abstract
Embodiments of the present disclosure include a wheelchair configured to reposition an occupant between a lowered and a raised position. The wheelchair can include a frame, a seat moveable relative to the frame, a drive wheel, and one or more pairs of arm assemblies. The arm assembly includes a wheel configured to move from a first spatial location when the wheel chair is operating on flat, level ground to a second spatial location that is different than the first spatial location. Arm limiters that can selectively engage the arm assembly dependent on the position of the arm assembly and surface conditions of ground and can limit the range of motion of the arm assembly and sometimes other operational aspects of the chair.
Claims24
A powered wheelchair comprising:
- a frame;
- a lift mechanism supported by the frame:
- a seat supported by the lift mechanism, the lift mechanism configured to move the seat from a lowered position to a raised position;
- a pair of drive wheels;
- at least one drive coupled to the frame and configured to apply a torque to at least one wheel of the pair of drive wheels;
- an arm assembly including an arm member pivotably coupled to the frame;
- a front wheel rotatably coupled to the arm member;
- and
- an arm limiter assembly including an arm limiter, the arm limiter assembly coupled to the frame and configured to move from a first configuration whereby the arm member is capable of pivoting relative to the frame through a first range of rotation that is uninhibited by the arm limiter assembly, to a second configuration whereby the arm member is capable of pivoting relative to the frame through a second range of rotation that is inhibited by the arm limiter assembly when the arm member abuts the arm limiter, wherein the arm limiter is configured to compress in response to upward movement of the arm member, such that the second range of rotation is smaller than the first range of rotation.
Dependencies are inferred from the claim text.