A wheelchair includes a first link (121) that supports a first bottom (131), a second link (123) that supports a second bottom (133), a third link (124) that supports a third bottom (134), a fourth link (125) that supports a fourth bottom (135), a first base portion (110) that supports a fifth bottom (132), and a first drive link (127). The first drive link has a first roller (127a) and a second roller (127b). The second link and the third link are provided with rail portions (123a, 124a) respectively. The wheel chair has wheel chair link portion (120) allows the first roller to slide in the rail portion of the second link, and allows the second roller to slide in the rail portion of the third link.
