A wheelchair comprising: a car body that has an open rear wall and an open bottom wall; wheels (3,4) that support the car body; a seat that includes right and left seat portions, and having a closed position wherein the seat portions are disposed over the bottom of the car body, and an opened position wherein the right and left seat portions are outwardly disposed to provide open access above the bottom of the car body; a space formed in the car body under the seat for receiving therein a bed for supporting a disabled person; a seat moving device for moving each of the right and left seat portions relative to the other of the left and right seat portions, the seat moving device having a holding plate that is provided in the car body and that holds the seat moving device, L-shaped first and second parallel links (16,17) separated longitudinally from each other, for connecting the seat portion to the car body, an operation rod extending longitudinally for operating the first and second links (16,17), a bent portion of each of the L-shaped links (16,17) being supported rotatably on the holding plate, one of the free ends of each of the L-shaped links (16,17) being pivoted to the operation rod, and the other of the free ends of the L-shaped links (16,17) being pivoted to the right or left seat portion of the seat, a spring for suppressing the motion of the seat from a closed position to an opened position, and a cable for moving the seat from the closed position to the opened position against the force of the spring, so that when the operation rod is pulled by the cable in one direction the links (16,17) are rotated by 90 degrees centering around each of the bent portion thereof on a horizontal surface, and that the right or left seat portion of the seat is moved outwardly from a closed position to an opened position. a car body that has an open rear wall and an open bottom wall; wheels (3,4) that support the car body; a seat that includes right and left seat portions, and having a closed position wherein the seat portions are disposed over the bottom of the car body, and an opened position wherein the right and left seat portions are outwardly disposed to provide open access above the bottom of the car body; a space formed in the car body under the seat for receiving therein a bed for supporting a disabled person; a seat moving device for moving each of the right and left seat portions relative to the other of the left and right seat portions, the seat moving device having a holding plate that is provided in the car body and that holds the seat moving device, L-shaped first and second parallel links (16,17) separated longitudinally from each other, for connecting the seat portion to the car body, an operation rod extending longitudinally for operating the first and second links (16,17), a bent portion of each of the L-shaped links (16,17) being supported rotatably on the holding plate, one of the free ends of each of the L-shaped links (16,17) being pivoted to the operation rod, and the other of the free ends of the L-shaped links (16,17) being pivoted to the right or left seat portion of the seat, a spring for suppressing the motion of the seat from a closed position to an opened position, and a cable for moving the seat from the closed position to the opened position against the force of the spring, so that when the operation rod is pulled by the cable in one direction the links (16,17) are rotated by 90 degrees centering around each of the bent portion thereof on a horizontal surface, and that the right or left seat portion of the seat is moved outwardly from a closed position to an opened position.