Concealed hinge for a turn-tilt window and such a window equipped therewith

A concealed hinge for a turn-tilt window with a fixed frame (2) and a turnable leaf (3), the concealed hinge configured for both a turning movement between an open and a closed position about a vertical axis, and a tilting movement between a tilted position and the closed position about a horizontal axis, the concealed hinge (5) comprising:

• scissors (25) with a first arm (26) and a second arm (27),
• the first and second arms (26, 27) being connected together by a central hinge (28),
• respective first ends (29, 30) of each of the first and second arms being connected by a hinge to a mounting slat (31) that is configured to be mounted horizontally on the fixed frame (2), and
• each of the first and second arms (26, 27), at respective second ends (32, 33), being provided with a hinge (40, 47) that couple to the leaf (3),
• wherein the first arm (26) is connected by the first end (29) to the mounting slat (31) by a fixed frame hinge (34) with a first peg (35) that is fastened to the mounting slat (31) and mounted upright substantially parallel to the vertical axis,
• wherein the second arm (27) is connected by the first end (30) to the mounting slat (31) by a shiftable frame hinge (37) with a second peg (38) that is provided on the first end of the second arm (27) and shiftably affixed in a guide slot (39) of the mounting slat (31), and
• wherein, when the concealed hinge is turned about the vertical axis to the closed position, the scissors (25) are in a collapsed position and remain in the collapsed position during the tilting movement such that the mounting slat (31) operates as a support for the tilting movement of the scissors (25) and the fixed first peg (35) on the mounting slat (31) forms a guide for the tilting movement.