FIELD: construction.
SUBSTANCE: flap turning angle limiter with the hitch on the left cover and the reference hole in the right slider relates to bolts and other locking devices for the flaps, in particular to devices for limiting the opening of doors and windows in buildings and for fixing them in the open position by means of the movable elements located on a frame and a flap, to be hitched and unhitched. The limiter comprises the hinged plate with a groove, the bolt with a handle and a hitch, the guiding housing, which accommodates the bolt and in which a winding slot is made, consisting of the transverse bore and the initial bore and the fixing bore connected with its ends, made longitudinal and arranged in opposite directions from the transverse bore with the possibility of moving the bolt handle along them. Longitudinal projections are made on the plate side facing the guiding housing. The right slider is put on the plate, in which the reference hole is made with the possibility for the hitch to pass through it after passing through the groove and hitching on the right slider after the hitch subsequent turning. A rack ratchet mechanism is arranged on the plate, comprising a rack made in one of the groove longitudinal edges, and an arresting device equipped with an adjustment handle. The arresting device is located in the groove between the right slider and the left cover placed on the plate overlapping with the both longitudinal groove edges and connected to the right slider with the possibility of moving together with the arresting device along the longitudinal groove. On the left cover the hitch is made with the possibility of hitching on the bracket rigidly fixed on the guiding bolt housing. In the left cover the auxiliary opening is made, through which the adjustment handle is moved out. The arresting device may be spring-loaded, or made springy of a resilient material.
EFFECT: provision of further opening only in case the flap is closed.
3 cl, 19 dwg
