US 12,409,085 B2
Powered midwheel drive wheelchair with standing capability
Herbert Van De Wal, Alnö (SE); Anton Danielsson, Timrå (SE); and Ulrik Löfvander, Härnösand (SE)
Assigned to PERMOBIL AB, Timrå (SE)
Filed by PERMOBIL AB, Timrå (SE)
Filed on Jul. 6, 2023, as Appl. No. 18/347,802.
Claims priority of application No. 22183660 (EP), filed on Jul. 7, 2022.
Prior Publication US 2024/0009045 A1, Jan. 11, 2024
Int. Cl. A61G 5/14 (2006.01); A61G 5/04 (2013.01)
CPC A61G 5/14 (2013.01) [A61G 5/043 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A powered midwheel drive, MWD, wheelchair comprising:
a chassis,
a seating system attached to the chassis, the seating system being configured to be manoeuvred between a seated position and a standing position,
a pair of drive wheels,
a pair of front swing arms pivotally connected to the chassis, and
front support wheels attached to a respective one of the front swing arms,
wherein each front swing arm is configured to pivot in relation to the chassis between a first position, in which the front support wheel is at an uppermost position in relation to the chassis, and a second position, in which the front support wheel is at a lowermost position in relation to the chassis, and
wherein the front swing arms are configured to pivot to the first position when the seating system is in the standing position, whereby the chassis is tilted forward in relation to the ground or floor surface.