FIELD: construction.
SUBSTANCE: device for the flap turning angle limiting with a hook on the left slider and a reference hole in the left cover relates to bolts and other locking devices for flaps, mostly for doors and windows in buildings, in particular to devices for limiting the opening angle of doors and flaps and their locking in the open position by means of movable elements arranged on the frame and flap, wherein the elements are coupled and uncoupled to allow the further opening only in cases when the flap is closed. The device comprises of a hook and a hinged plate with a slot having a flared edge facing the hinge joint. The hook is made movable to travel longitudinally and to pass through the flared slot end and to hook on the longitudinal slot edges when opening the flap. A rack ratchet mechanism is made on the plate, which contains a rack gear in one of the longitudinal slot edges, and a pawl equipped with a release handle, arranged for squeezing out of the toothed recess and moving in the slot between the right cover and the left slider sitting on the plate, interconnected to move together with each other and with the pawl along the slot. The right cover has a reference hole through which a hook can pass after passing through the flared end of the slot. The left slider has a hook to engage the brackets rigidly attached to the guiding housing together with a bolt on which the hook is mounted. The left slider has an auxiliary hole through which the release handle comes out. The pawl can be spring-loaded towards the rack gear or made springy of a resilient material.
EFFECT: increased reliability.
3 cl, 16 dwg
