Abstract: The present invention relates to a device mounted on a wheel set that comprises: a rocker beam 14 connected firstly to a tiltable frame 10 by means of a shock absorber 17 and secondly to two oscillating arms 7, 8 via two connecting rods 13, 15; and blocking means 27 having a first anchor point on said rocker beam 14. Furthermore, the device comprises decoupling means constituted by a horizontal lever 21 and a vertical lever 22 that are connected together by a connection point 24 about which they are capable of pivoting, the free ends of said levers being connected respectively to said frame and to said rocker beam, the second anchor point of said blocking means 27 being on said decoupling means. The invention also provides a vehicle, in particular a quadricycle, provided with the device.

Abstract: The present invention relates to a device mounted on a wheel set that comprises: a rocker beam 14 connected firstly to a tiltable frame 10 by means of a shock absorber 17 and secondly to two oscillating arms 7, 8 via two connecting rods 13, 15; and blocking means 27 having a first anchor point on said rocker beam 14. Furthermore, the device comprises decoupling means constituted by a horizontal lever 21 and a vertical lever 22 that are connected together by a connection point 24 about which they are capable of pivoting, the free ends of said levers being connected respectively to said frame and to said rocker beam, the second anchor point of said blocking means 27 being on said decoupling means. The invention also provides a vehicle, in particular a quadricycle, provided with the device.