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(11) | EP 2 716 268 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Suspension system for a mid-wheel drive wheelchair |
| (57) The invention relates to a mid wheel drive wheelchair, comprising a frame and a suspension
unit connected thereto for at least one drivable wheel element. The suspension unit
comprises a first bearing arm connected to the frame for the drivable wheel element.
A first end of the first bearing arm is pivotably connected to the frame, wherein
the drivable wheel element is rotatably mountable near a part of the first bearing
arm which is spaced apart from the first end. The suspension unit is provided with
a spring and/or damper element connected to the frame for damping a pivoting motion
of the first bearing arm. The suspension unit comprises a second bearing arm for a
rear supporting wheel element, wherein a first end of the second bearing arm is pivotably
connected to the first bearing arm. The spring and/or damper element is thereby also
configured for damping a pivoting motion of the second bearing arm. According to an
aspect of the invention the suspension unit comprises a front bearing arm for a front
supporting wheel element. A first end of this front bearing arm is pivotably connected
to the first bearing arm. Additionally, the front spring and/or damper element is
configured for damping a pivoting motion of the front bearing arm.
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