Patent ID: 9422672
Filing Date: 2016-08-23
CPC Classification: B61F,E01B

Claim Text:
1. In a system having a track including at least one guide rail having a head with a width C and two side rails each disposed parallel to the guide rail and positioned on a respective side of the guide rail and mutually separated by a distance D, and a guided vehicle including a guidance unit having guide wheels to be supported on the guide rail, a device to be fitted to the guided vehicle for maintaining a trajectory of the guided vehicle moving on the track, the trajectory maintaining device comprising: a. a bar configured to be fixed to the guidance unit so as to be transverse to the track, said bar having length L dimensioned between the distance D mutually separating the side rails minus the width C of the head of said guide rail and the distance D mutually separating the side rails: D−C<L<D; and b. a fixing device configured to fix said bar to the guidance unit with said bar positioned transversely between and at a level of the the rails so as to be supported on one or the other of the side rails during at least one of a derailment or a failure of guidance of the guided vehicle.