Window with hinging shutter - has scissors arm hinging on sliding strip engaging with locking device on frame

摘要

The window comprises a fixed frame in which a shutter hinges on a horizontal axis under the action of a scissors mechanism between its free end and the frame, and which is completely retracted into the frame when shut. The mechanism has an arm turning in the frame and sliding and turning in the shutter, so that on shutting it can still slide while being unable to turn, while on opening it first slides and then turns. The arm hinges on a sliding strip, which has a locking device working with one on the frame and engaging with it during the sliding movement on shutting.