FIELD: mechanics.
SUBSTANCE: invention relates to devices designed to open multi-leaf windows or doors. Proposed device comprises the leaf turn angle stop. The said stop consists of opening lever arranged to turn on both the leaf and the casement, and is made of plates. Every aforesaid plate a lengthwise slot and stop ledge arranged in front and at a distance from the plate plane. Aforesaid stop ledge of each plate enters the lengthwise slot of the other plate. Stop ledge of every plate is arranged adjacently with the stop intended for the other stop ledge. Aforesaid stop ledge represents the plate bent section. Clamping ledge, oriented along lengthwise direction, should extend from the lengthwise slot end. Interacting stop and clamping ledge are arranged to pass by each other at elastic deformation of clamping ledge.
EFFECT: leaf locking in opened position.
8 cl, 5 dwg
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