ROAD TRAILER WITH ORIENTABLE SECONDARY WHEELSET

摘要

A road trailer (1) includes, under a chassis (2) with fixed draw bar (4), a main wheelset (3) and a secondary wheelset (6). A retraction device (M, V, 6d) allows the wheelset (6) to be moved in such a way that the trailer (1) rests on the ground (S) selectively either via the main wheelset (3) or via the secondary wheelset (6). An orientation device allows the secondary wheelset (6) to have its direction oriented according to a reversing path followed by a towing vehicle (5) to which the trailer (1) is hitched. Orienting the secondary wheelset (6) allows the trailer (1) to be kept always along the axis of the towing vehicle (5) during reversing.

主权项

1. Road trailer (1) provided with a trailer chassis (2), with a main wheelset (3) and with a fixed drawbar device (4) for coupling it to a towing vehicle (5), further comprising:
a secondary wheelset (6), retraction means (M, V, 6d) for selectively moving, out of the main wheelset (3) and the secondary wheelset (6), at least one of them between a first position in which the secondary wheelset (6) is retracted away from the ground (S) with respect to the main wheelset (3) so that the secondary wheelset (6) remains away from the ground (S) when the trailer is resting on the ground (S) via the main wheelset (3), and a second position in which the secondary wheelset (6) is deployed toward the ground (S) past the main wheelset (3) so that the main wheelset (3) remains away from the ground (S) when the trailer is resting on the ground (S) via the secondary wheelset, orientation means (6e, 7) for orienting the direction of the secondary wheelset (6) according to a reversing path of the towing vehicle (5).