PROTECTIVE DEVICE FOR AUTOMATICALLY OPENING SKYLIGHTS, WINDOWS OR DOORS

摘要

The invention realises a safety device (1) for automatic control for the opening of skylights comprising: a valve body (2) with which a thermosensitive bulb (4), a bomb (10) containing pressurised gas for feeding the actuator of the opening of the skylight and a solenoid (20) whose movable element (21) cooperates with blocking means (3) of said bulb (4), are connected. A piston (6) coupled in said valve body (2) is supplied with a pin (7) suitable for piercing the membrane (12) which intercepts the delivery mouth (11) of said bomb (10) in order to feed said actuator when said movable element (21) releases said bulb (4).