Mobility vehicle
AssigneePride Mobility Products Corporation
InventorJonathan Davis
Life of this patent
Estimating the term…
Abstract
A mobility vehicle may comprise a frame, a first pivot arm, a second pivot arm, and a suspension assembly. The first pivot arm may be coupled to the frame and coupled to a drive wheel. The second pivot arm may be coupled to the frame and coupled to a ground engaging caster wheel. The suspension assembly may be coupled to the frame. The suspension assembly may include a first spring assembly and a second spring assembly. The first spring assembly may be disposed about a first spring axis and coupled to the first pivot arm. The second spring assembly may be disposed about a second spring axis and coupled to the second pivot arm. The first spring axis and the second spring axis may be disposed relative to each other at an angle of no greater than about 150° when the mobility vehicle is operating on horizontal ground.
Claims26
A mobility vehicle comprising:
- a drive wheel having a drive wheel axis, configured to propel the mobility vehicle along a ground surface;
- a frame having a;
- stiffening assembly with a first pivot axis and a second pivot axis disposed between the ground surface and the drive wheel axis;
- a drive wheel pivot arm rotatably coupled to the stiffening assembly to pivot the drive wheel about the first pivot axis;
- and
- a caster wheel pivot arm rotatably coupled to the stiffening assembly to pivot a caster wheel about the second pivot axis.
A mobility vehicle comprising:
- a frame having a bottom surface;
- a stiffening assembly coupled to the bottom surface of the frame;
- a first pivot arm coupled to the stiffening assembly and to a drive wheel;
- and
- a second pivot arm coupled to the stiffening assembly and a caster wheel,
- wherein the stiffening assembly includes a plurality of stiffing members each stiffening member extending from a left side of the frame to a right side of the frame,
- wherein the stiffening assembly includes a plurality of bridges each bridge coupled to each of the plurality of stiffening members, and
- wherein the plurality of stiffening members consists of two stiffening members and the plurality of bridges consists of two bridges.
A mobility vehicle comprising:
- a frame having a bottom surface;
- a stiffening assembly coupled to the bottom surface of the frame;
- a first pivot arm coupled to the stiffening assembly and to a drive wheel;
- and
- a second pivot arm coupled to the stiffening assembly and a caster wheel,
- wherein the stiffening assembly includes a plurality of stiffing members each stiffening member extending from a left side of the frame to a right side of the frame,
- wherein the stiffening assembly includes a plurality of bridges each bridge coupled to each of the plurality of stiffening members, and
- wherein each bridge of the plurality of bridges is disposed at an outermost point of the frame.
A mobility vehicle comprising:
- a frame having a bottom surface;
- a stiffening assembly coupled to the bottom surface of the frame;
- a first pivot arm coupled to the stiffening assembly and to a drive wheel;
- and
- a second pivot arm coupled to the stiffening assembly and a caster wheel,
- a drive wheel suspension coupled to the first pivot arm and to the frame;
- a castor wheel suspension coupled to the second pivot arm and to the frame;
- and
- a link fixed to an external face of the frame, wherein the drive wheel suspension and the castor wheel suspension are coupled to the link.
Dependencies are inferred from the claim text.