BOLT FOR THE INTERNAL SECURING OF SWING DOORS AND WINDOWS

摘要

Novelty: a bolt operating without strike plate for the internal securing of swing doors and windows is disclosed. Constitution: a base 1 having holes 12a for the fixing of the screws 12 at the frame 110 of the swing leaf 100 and a moving section of at least one arm 2 which arm is rotarily connected to the base 1 and engage the swing leaf 100 by hindering the opening thereof when the bolt is in the secure position. The base 1 comprises the block 110 having the through hole 1a and an arrangement of four blind holes 1b for the reception of springs 8; the section of the arm 2 comprises the block 120 having the through hole 2a and the arrangement of four blinds holes 2b for the reception of spheres 9, where the bolt is assembled by seating of the block 120 onto the block 110, by contact of the spheres 9 with the springs 8, by passage of the internally-threaded fluted member 3 through the holes (1a,2a) and by screwing of the screw 10 inside the thread of the fluted member 3.