Route or information signaling device for e.g. pathway, has cylindrical base whose centre of gravity is situated inside half-part of cylinder, which makes to and fro movement and comes back to same position

摘要

The device has a cylindrical base (1a) whose centre of gravity is situated inside a half-part of a cylinder (2b), which makes to and fro movement and comes back to same position in order to let the lower part in direction of terrestrial centre of gravity. Two bars (4, 5) project outside a slit (3) to form a triangle with the base, so as to be liberated when the device is installed on the road using push buttons (7a, 7b).