Brake for an automatic rotation by torsion spring device for automatic rotation torsion spring incoropora said brake roller and said brake element comprising

摘要

Brake for an automatic rotation by spring device torsion automatic rotation torsion spring incorporating said brake roller element comprising said brake. # To brake winding a insect screen around a rotating body (2) hollow . It comprising: a) a first body (17) having a first end (18) and a second end (19), the first end (18) connected to a first end (12) of a spring (11) torque; b) a second body (20) at the second end (19) and coaxial with said first body (17), c) a one way ratchet mechanism mounted on the second body (20), and provided with at least one projection (23 ) housed in a channel (16) of the inner wall of the rotating body (2), the projection (23) slidably through the channel (16) but not rotatable with respect to the rotating body (2); and the unidirectional coupling mechanism allows for inertial effects, reduce the rotational speed of the rotating body (2) when driven by rotation of the spring (11).