Espagnolette which can be used as a security device for holding two-leaved swinging shutters ajar

摘要

The invention relates to a device making it possible to make it impossible to open the shutters completely from the outside of the premises when these shutters are ajar, by means of the espagnolette usually used to lock them in the closed position. For this purpose, the operating handle 4 is made independent of the catch 3 and the device includes a heel 8 extending the handle 4, a main stop piece 15 secured to the central bearing supporting the round rod 1, a complementary stop piece 19 secured to the catch 3 and to the rod 1 and a locking hook 16 provided with two ridges 17 and 18 located in opposition and intended to hold the handle 4 substantially parallel to the plane of the shutter 9. The main application of the invention is the equipment of swinging shutters used in the building field. IMAGE