Lift and tilt device for a power wheelchair

A lift and tilt device (1;

• 1′) for manoeuvring a seat (43) of a power wheelchair (39), comprising:
• an upper beam (3;
• 3′;
• 3′″) having a proximal end (3a) and a distal end (3b),
• a first linear actuator (15) arranged along the upper beam (3;
• 3′;
• 3′″) comprising a first carrier unit (15b;
• 15b′;
• 15′″) configured to run along the upper beam (3;
• 3′;
• 3′″) from a distal position (19b) towards the proximal end (3a) to a proximal position (19a), and from the proximal position (19a) to the distal position (19b),
• a lower beam (5;
• 5′;
• 5′″),
• a second linear actuator (21) arranged along the lower beam (5;
• 5′;
• 5′″) comprising a second carrier unit (21b;
• 21b′;
• 21b′″) configured to run along the lower beam (5;
• 5′;
• 5′″) between a first position (23a) and a second position (23b),
• a main arm (7;
• 7′) pivotally connected to the proximal end (3a) of the upper beam (3;
• 3′;
• 3′″) and to the second carrier unit (21b;
• 21b′;
• 21b′″),
• an upper arm (9;
• 9′) pivotally connected to the main arm (7;
• 7′) and to the first carrier unit (21b;
• 21b′;
• 21b′″),
• a mounting structure (13;
• 13′) fixedly arranged relative to the lower beam (5;
• 5′), and
• a lower arm (11;
• 11′) pivotally connected to the main arm (7;
• 7′) and to the mounting structure (13;
• 13′).