The device for crossing obstacles for a motorized vehicle includes a chassis connected to n (n&gE；3) wheels on each side, and a driver suitable for rotating the wheels. Each side of the chassis includes a mechanism comprising n&minus；1 arms hingedly connected two-by-two about a shared pivoting axis on which the n wheels are distributed, respectively a front wheel, n&minus；2 intermediate wheels, and a rear wheel. The mechanism allows each wheel to pivot relative to the axis of each adjacent wheel.
