DEVICE FOR PROTECTION AGAINST HEAT, SUCH AS SUNSHADE OR PARASOL PROVIDED WITH A SOLAR ENERGY VENTILATION SYSTEM

摘要

The invention relates to a device such as a parasol or sunshade, provided with a solar energy ventilation system. According to the invention, the post (1) of the device is pierced with ports wherein are housed drive elements (7). Furthermore, the device has, on the one hand, a motor whose drive shaft (10) extends at least partially inside the post (1) and is appropriate to drive rotationally the drive elements (7) and, on the other hand, a fan propeller comprising a rotating ring (14) which carries blades (22) and which is arranged about the post (1) so that the ring is rotated by means of the drive elements (7). Finally, the motor, the drive shaft (10), the drive elements (7) and the rotating ring (14) are coupled so as to form a transmission chain which is disengageable by a given force opposed to the rotation of the propeller.