You can say all manufacturers of hardware for windows create their own designs, starting from the so-called modularity, which allows us to adapt to various types of profile of one type of hardware. As a rule of the module includes the main mechanical drive (the main lock), the mechanisms that transmit the motion through the corner, loop groups (lower and upper). Accessories should be classified according to the method and direction of the sashes (Left or right), the possible mass of leaf, a few other parameters. By way of opening the window hardware is divided into three main types, which include hardware knob, vertical suspension, articulated with horizontal suspension and swing-out. Classical and widely used type of fittings – swivel with vertical suspension. If you use a rotary fittings with a horizontal suspension casement single handle elementary rotated to any angle, remaining in that position without additional fixation.
Window fittings of both types can be adapted to the elementary boxes of different shapes, sizes and weights. The invention and introduction into the use of modern type furniture – swing-out – gave the window a number of new properties. First of all, there is no longer necessary in settling deductible skylights window panes or transoms. Mechanism swing-out type provides functionality besskvoznyakovogo . It is also important that the mechanism of the windows is controlled by one knob – for fixing the handle in position to open a window in the desired direction. Allowable weight of leaf in the context of window fittings depends on the application of a particular type of loops.