SELBSTVERRIEGELNDE ANTRIEBSVORRICHTUNG FÜR TRITTSTUFE EINES TRANSPORTFAHRZEUGS, DAMIT AUSGESTATTETE TRITTSTUFE UND DAMIT AUSGESTATTETES FAHRZEUG

摘要

This drive device comprises a rotary motor (10), as well as a transmission assembly (20, 30, 80) able to be moved under the effect of the rotation of the motor (10) and able to activate the movement of According to the invention, the transmission assembly is provided with elastically deformable means (72), allowing this transmission assembly to occupy a locked position when the step occupies its extreme high position, this locked position not requiring a Prior angular overtravel of the step. The invention provides, through the use of elastically deformable means equipping the transmission assembly, that the step can be locked reliably in its extreme high position. Consequently, this step does not protrude outside the overall size of the vehicle, while ensuring satisfactory safety. The invention therefore makes it possible to overcome the prior angular overtravel of walking, which involves the prior art. By comparison, the invention allows direct access to an extreme high locked position, through the use of deformable means, without having to adopt an intermediate position.