HATCH Russian patent published in 2012 - IPC E06B5/01 

FIELD: construction.

SUBSTANCE: hatch comprises an outer frame forming a closed circuit, a door arranged in the form of an inner frame forming a closed circuit, a hinge and a pusher latch. The pusher latch is fixed on the outer frame. The door comprises a ledge arranged as capable of interaction with the pusher latch, is connected with the loop by means of first axes lying on the first straight line and may rotate around the first axes. The hatch comprises one brace and one closer. The hinge is connected with the brace by means of the second axis lying on the second straight line. The hinge is also connected with the outer frame by means of third axes lying on the third straight line and may rotate around third axes. The brace is hingedly connected to the closer. The closer is connected with the outer frame by means of a fourth axis lying on the fourth straight line and may rotate around the fourth axis, interacting with the door. The hatch also comprises a facility for rotation of a hinge, due to which the hinge may rotate on third axes. On the outer frame there is a ledge, on the door there is a responsive part of the stop.

EFFECT: increased reliability, reduced weight of a structure.

6 cl, 5 dwg