Abstract: A wheelchair for the use of invalids has two propelling wheels, at least one of which can be swung rearwardly of the seat of the chair. An armrest is provided which can be swung down, so as to be in the horizontal and permitting the user of the wheelchair to slide on the downswung armrest onto a seating or lying accommodation, the armrest being constituted by two plate elements hinged to one another, so that when unfolded the armrest offers a wide surface adapted to bridge a wide gap between the seat of the wheelchair and an accommodation to which the user of the chair transfers.