Electricite De France - Service National

Pierre-Armand Patin

Pierre Patin

An articulated vehicle includes a rear frame and a front frame linked by an articulation associated with the device for removably locking controlled by a pendular member mounted oscillating on the front frame between a median position for unlocking the articulation and a spaced apart position for locking the articulation, at least when the vehicle is stopped. The vehicle comprises elements for controlling the unlocking of the articulation, at least during start-up, including an auxiliary platform integral in rotation with the rear frame and comprising, at least, two footrests arranged at substantially the same level relative to the ground, on either side of the articulation axis and constituting each, on the side towards which the front frame is inclined, a support for the front frame to be set upright by the vehicle driver, the pendular member returning to its median position for unlocking the articulation.

Articulated vehicle

The invention concerns an articulated vehicle comprising a rear frame () and a front frame () linked by an articulation () associated with the device () for removably locking controlled by a pendular member () mounted oscillating on the front frame () between a median position for unlocking the articulation and a spaced apart position for locking the articulation, at least when the vehicle is stopped. The vehicle comprises means () for controlling the unlocking of the articulation, at least during start-up, including an auxiliary platform () integral in rotation with the rear frame () and comprising, at least, two footrests () arranged at substantially the same level relative to the ground, on either side of the axis (x'x) of the articulation () and constituting each, on the side towards which the front frame () is inclined, a support for said front frame () to be set upright by the vehicle driver, the pendular member () returning to its median position for unlocking the articulation.

Pulley usable in single or double form. It comprises a guidance structure (3) for segments (4) displaceable in accordance with the setting of the rods (7), which are advantageously symmetrically extended with respect to a pivot (9) and carrying an opposite counterweight. The segments (4) are circular arcs in order to ensure a good adhesion of the belt. Advantageously the counterweights are segments (42), which makes it possible to obtain a double pulley formed from two coaxial pulleys, whose diameters vary in opposite directions. The centrifugal force on segments (4) can be balanced. Application to continuous speed variators.

Growing community of inventors

Meudon, France

Pierre-Armand Patin