Rotative shaft and apron connecting device for roller shutter of building, has spacer rotated with respect to part and arm, such that spacer limits opening angle of arm with respect to part, when device passes to anti-raising position

摘要

The device (1) has a ring shaped part (2) connected to a rotative shaft by a complete rigid connection. A rigid arm (4) comprises an end (5) articulated at the part. A mobile angular spacer (8) is articulated along an articulation axle (9) intercalated between the part and the rigid arm. The spacer is rotated with respect to the part and the arm, such that the spacer limits an opening angle of the arm with respect to the part via support surfaces, when the device passes from a rolling position to an anti-raising position.