Metalwork of a window and elements thereof

1. An operational mechanism for a window comprising a fixed frame ( 2 ) and a leaf ( 3 ), and a control ( 15 ) of the operational mechanism, which, when operational is arranged to open and close the leaf ( 3 ) to turn around a vertical axis (X-X′) by use of hinges ( 11 ) or which can tilt around a horizontal axis (Y-Y′) depending on the position of the control ( 15 ) arranged to move from a closing position in which the window ( 1 ) is closed, to a first opening position for one of either of the turning or tilling movements of the leaf ( 3 ) depending on the window, in particular turning for a turn tilt window ( 1 ) or tilting for a tilt turn window ( 1 ), and further to a second opening position for another movement of either one of said turning or tilting movements of the leaf depending on the window, in particular tilting for a turn tilt window ( 1 ) or turning for a tilt turn window ( 1 ), the operational mechanism comprising:

a scissor mechanism ( 29 ) comprising a guide to be mounted on the leaf and a main arm ( 30 ) which is hinge-mounted to a carriage ( 32 ) which can shift on the guide and which is connected to a hinge of the vertical axis (X-X′) when operational;

a slide latch ( 28 ) shiftable by the control ( 15 ) over an outer perimeter ( 8 ) of the leaf;

a locking device for locking and unlocking the main arm in relation to the leaf ( 3 ), the locking device having two coupling elements, a first coupling element ( 37 ) located on the main arm ( 30 ) and a second coupling element ( 38 ) located on the slide latch ( 28 ) respectively, which coupling elements can mesh to lock the main arm ( 30 ) by controlling the operational mechanism ( 6 ) for allowing turning of the leaf or be moved apart in view of the free movement of the main arm ( 30 ) for allowing tilting of the leaf, wherein the first coupling element ( 37 ) is formed as a gudgeon fixed on a rotating arm ( 39 ) which is rotatable around an axis ( 40 ) with respect to the main arm, the gudgeon being positioned eccentrically on the rotating arm ( 39 ) at a distance from the axis ( 40 ) and working in conjunction with the second coupling element ( 38 ), the rotating arm ( 39 ) arranged to turn in a reversible manner half a turn between two lockable positions:

a first lockable position corresponding to a turn tilt operational mechanism ( 6 ) wherein the first and second coupling elements are meshed when the control ( 15 ) is in a closing or first opening position and are disengaged when the control ( 15 ) is in a second opening position;

a second lockable position corresponding to a tilt turn operational mechanism ( 6 ), wherein the first and second coupling elements are disengaged when the control ( 15 ) is in the closing or first opening position and are meshed when the control ( 15 ) is in the second opening position.

2. The operational mechanism according to claim 1 , wherein the transformation from one operational mechanism ( 6 ) into another operational mechanism ( 6 ) is made possible by adjusting two elements.

3. The operational mechanism according to claim 1 further comprising a detachable hinge ( 12 ) for tilling the window ( 1 ) with two disconnectable hinge parts including a second hinge part ( 14 ) located on the fixed frame ( 2 ) and a first hinge part ( 13 ) located on the leaf ( 3 ) respectively, arranged to be pushed in or out of one another by means of the control ( 15 ) of the operational mechanism ( 6 ), in order to tilt the window ( 1 ) and in order to turn the window ( 1 ) respectively, wherein at least one of the first and second hinge parts ( 13 - 14 ) is adjustable to transform the operational mechanism ( 6 ) from a turn tilt operational mechanism into a tilt turn operational mechanism by mutual adjustment.

4. The operational mechanism according to claim 3 , wherein the first and second hinge parts ( 13 - 14 ) for a turn tilt operational mechanism ( 6 ) are placed such in relation to one another that the first and second hinge parts ( 13 - 14 ) are pushed into one another for a first opening position of the control ( 15 ), wherein the first and second hinge parts are pushed out of one another for the second opening position, and that for a tilt turn operational mechanism ( 6 ), the first and second hinge parts ( 13 - 14 ) are placed such that, for the first opening position of the control ( 15 ), the first and second hinge parts ( 13 - 14 ) are pushed out of one another, and for the second opening position, the first and second hinge parts ( 13 - 14 ) are pushed into one another.

5. The operational mechanism according to claim 4 , wherein the second hinge part ( 14 ) is adjustable between two positions on the fixed frame ( 2 ) along an inner edge ( 41 ) of the frame ( 2 ), corresponding to a position for a turn tilt operational mechanism and a position for a tilt turn operational mechanism respectively, and in that the first hinge part ( 13 ) is provided on the leaf ( 3 ) on a slide lath ( 21 - 43 ) shiftable over the outer perimeter ( 8 ) of the leaf ( 3 ) by means of the control ( 15 ).

6. The operational mechanism according to claim 5 , wherein the first hinge part ( 13 ) on the slide lath ( 21 - 43 ) of the leaf ( 3 ) is a hinge pin, wherein the second hinge part ( 14 ) on the frame ( 2 ) is made as a U-shaped element provided on the inner perimeter ( 41 ) of the frame ( 2 ) with the legs ( 24 ) pointing inward and which can be moved over the inner perimeter ( 41 ) of the frame ( 2 ) between two positions that can be locked, corresponding to a turn tilt or a tilt turn operational mechanism ( 6 ), respectively.

7. The operational mechanism according to claim 6 , wherein the U-shaped element ( 14 ) is a U-shaped post such that the legs ( 24 ) are provided with a recess ( 25 ) over a certain length in the central part.

8. The operational mechanism according to claim 3 , wherein in order to transform a turn tilt operational mechanism ( 6 ) into a tilt turn operational mechanism ( 6 ), one of both the first and second coupling elements ( 37 - 38 ) of the locking device of the scissor mechanism ( 29 ) and one of the first and second hinge parts ( 13 - 14 ) of the detachable hinge ( 12 ) are adjusted before tilting.

9. The operational mechanism according to claim 3 , further comprising a locking mechanism having at least one locking pin ( 26 ) located in a corner of the window ( 1 ), the locking pin ( 26 ) shiftable over the perimeter ( 8 ) of the leaf ( 3 ) by the control ( 15 ) between a position wherein, in the closing position of the control ( 15 ), the locking pin ( 26 ) meshes in a recess ( 27 ) of the frame ( 2 ), wherein in the first and second opening positions of the control ( 15 ), the locking pin ( 26 ) is withdrawn from said recess ( 27 ) in the frame ( 2 ).

10. The operational mechanism according to claim 9 , wherein at least one of the first and second hinge parts ( 13 - 14 ) is provided on or is part of the locking pin ( 26 ).

11. The operational mechanism according to claim 9 , wherein the control ( 15 ) is composed of at least one slide lath ( 18 - 21 - 28 ) arranged to shift over the outer perimeter ( 8 ) of the leaf ( 3 ), in a groove in the operational mechanism ( 6 ) in the outer perimeter ( 8 ) of the leaf ( 3 ), wherein an angle drive ( 20 ) is applied in a corner of the leaf ( 3 ) and includes a hooked guide ( 42 ) in which an elastic flexible lath ( 43 ) can shift and is provided with a coupling piece ( 44 ) on far ends thereof in the shape of a snap-in system for connecting to other of the slide laths ( 18 - 21 - 28 ).

12. The operational mechanism according to claim 11 , wherein the coupling piece ( 44 ) is formed of a holder ( 45 ) fixed under the flexible lath ( 43 ) at a far end thereof and having a body ( 49 ) pushable in a direction of the flexible lath ( 43 ) by means of a spring ( 50 ) and on which is provided a protrusion ( 51 ) extending through a passage in the flexible lath ( 43 ) and protruding over a certain length from the top of the latter when in rest, wherein the protrusion ( 51 ) is arranged to co-operate with a recess ( 52 ) of a part of the operational mechanism ( 6 ) to be coupled.

13. The operational mechanism according to claim 12 , wherein the body ( 49 ) is provided with two protrusions ( 51 ) located at a distance from one another such that two elements of the operational mechanism ( 6 ) are arranged to be simultaneously connected to far end of the flexible lath ( 43 ) of the angle drive ( 20 ).

14. The operational mechanism according to claim 13 , wherein a slide lath ( 18 - 21 - 28 ) and the locking pin ( 26 ) or the first hinge part ( 13 ) can be simultaneously connected to the far end of the flexible lath ( 43 ) of the angle drive ( 20 ).

15. The operational mechanism according to claim 1 , wherein the control ( 15 ) is provided with a locking mechanism preventing the control ( 15 ) from being moved to the second opening position.