Centre National De La Recherche Scientifique

Sorbonne Université

Ecole Superieure De Physique Et De Chimie Industrielles De La Ville De Paris

Université De Paris

Universite Paris Cité

Paris Sciences Et Lettres

Paris Sciences Et Lettres-quartier Latin

Opmobility Se

Etienne Reyssat

Philippe Gilotte

Benoît Roman

José Bico

Emmanuel Siefert

Jérôme Grando

The present invention relates to a pneumatic structure () comprising an inextensible body () defining at least a network of internal cavities (), each cavity having a closed contour in at least one section of the cavity Each cavity being suitable for being pressurized so as to change the inextensible body from a rest configuration to at least one pressurized configuration, Inextensible body having, in each pressurized configuration, a macroscopic metric different from its macroscopic metric in the rest configuration, Each cavity being formed of at least two substantially rectilinear channels, each channel being fluidly connected to at least one of the other channels, the two said channels forming a heading change angle, Each cavity comprising at least one non-zero heading change angle, in particular at least three non-zero heading change angles.

Pneumatic structure and associated production method

The structure () comprises an elastically deformable body () defining at least one network of internal cavities (), each internal cavity () having a closed contour in at least one section of the internal cavity (). Each internal cavity () is able to be pressurized so as to make the elastically deformable body () pass from a rest configuration to at least one pressurized configuration. In each pressurized configuration, the elastically deformable body () has a macroscopic metric that is distinct from its macroscopic metric in the rest position. In each pressurized configuration, the radius of curvature of an outer surface of the elastically deformable body (), considered regarding each internal cavity () adjacent to the outer surface, is greater than twice the size of the internal cavity () adjacent to the outer surface.

Growing community of inventors

Antony, France

Etienne Reyssat