Abstract: The invention concerns a container (1) made of plastic, provided with a body (5) and a bottom base (6) extending from a lower end of the body (5), the bottom base (6) comprising: an annular central zone (11) concentric to an injection point (12) located approximately at the center of the bottom base (6); a peripheral seat (7) defining a laying plane (8); a concave arch (10) which extends from the periphery of the central zone (11) to the peripheral seat (7) and having a rounded general shape with a concavity turned towards the outside of the container (1); a series of principal reinforcing grooves (13) which extend radially from the central zone (11) to at least the peripheral seat (7) defining for each principal reinforcing groove a main axis (G, G?, G?), According to the invention, the bottom base (6) further comprises a series of notches (15) and in that at least one of the series of notches (15) locally interrupt at least one of the series of principal reinforcing grooves (13).

Abstract: A humanoid robot foot (10) comprises: a foot base (12), at least one leaf spring (14) acting as a flexible toe of the foot, said at least one leaf spring (14) having a rear portion (14a) rigidly connected to a flat surface (12b) of the foot base (12), a front portion (14b) projecting from the foot base (12) and an intermediate portion (14c) which is not rigidly connected to the foot base (12) and is therefore freely deflectable, along with the front portion (14b), as a result of the application of an external force on the front portion (14b), and a stiffness adjustment device (26) for actively changing the stiffness (K) of said at least one leaf spring (14).

Abstract: A humanoid robot foot (10) comprises: a foot base (12), at least one leaf spring (14) acting as flexible toe of the foot, said at least one leaf spring (14) having a rear portion (14a) rigidly connected to a flat surface (12b) of the foot base (12), a front portion (14b) projecting from the foot base (12) and an intermediate portion (14c) which is not rigidly connected to the foot base (12) and is therefore freely deflectable, along with the front portion (14b), as a result of the application of an external force on the front portion (14b), and a stiffness adjustment device (26) for actively changing the stiffness (K) of said at least one leaf spring (14).