A METAL WINDOW FRAME PROVIDED WITH ANTI-BURGLARY LOCKING DEVICE

Abstract: The present patent application for industrial invention relates to a metal window frame provided with anti-burglary locking device, which preferably allows the two wings of the casing to be locked mutually and to the two upper and lower sides of the frame. A handle actuates a pinion (4) that engages with an opposite pair of racks (5, 6) connected to two vertical rods (1, 2; 100, 200), the rods being provided with coupling means (7; 70) capable of engaging with suitable housings (9; 90) located on a post (3a) against which a vertical profile (3) provided with said handle is positioned, said vertical profile (3) featuring slots (8; 80) for coupling means (7; 70).

Description: Description A metal window frame provided with anti-burglary locking device. The present patent application for industrial invention relates to a metal window frame provided with anti-burglary locking device, which allows the two wings of the casing to be locked mutually and to the two upper and lower sides of the frame. The window frame according to the present invention is absolutely original since it is the first safety window that allows for "locking" the wings and the frame, as it normally happens with reinforced, anti-burglary doors. The purpose of the present invention is to realise a window in which the rotation of the handle determines the simultaneous actuation of a series of coupling means that engage into corresponding housings, thus providing a kind of "safety locking" on the three sides of the wing, that is along the vertical profile and the lower and upper sides. The safety device mounted on the window according to the present invention comprises a pair of vertical rods that are housed and slide inside the vertical metal profile with handle. The handle comprises a sprocket wheel that engages with an opposite pair of racks with vertical axis, which make simultaneous identical travels, in opposite direction, when the handle is turned. The two vertical rods are respectively located above and below the handle and are connected to the two racks. For this reason, the translation of the racks results in the translation of the rods that are provided with coupling means matched with suitable housings located on the metal profile against which the side with handle is positioned. The translation of the vertical rods, which are connected to the two racks, causes the translation of horizontal rods by means of suitable levers or return mechanisms. The horizontal rods are provided with a series of pins with vertical axis, which create a connection between the lower and upper sides of the fixed frame of the window and the lower and upper sides of the mobile wings of the window. For major clarity the description of the window according to the present invention continues with reference to the enclosed drawings, which are intended for purposes of illustration and not in a limiting sense. The figures show a window with two wings, although the window according to the present invention could also be realised with one wing only. Fig. 1 shows a first preferred embodiment of the window according to the present invention, in which the frame and the wings are sectioned with a vertical plane, perpendicular to the rotation axis of the handle, in order to show the mechanisms contained inside the metal profiles of the wings and the frame; for easier representation, the top figure shows half of the window with the safety device in closed position, while the bottom figure shows the other half of the window with the safety device in opened position. Fig. 2 is an enlarged section of fig. 1 with plane A-A. Fig. 3 shows a section of the vertical profile of the wing with handle, seen from a angle perpendicular to the rotation axis of the handle. Fig. 4 shows the section of vertical profile without handle designed to interface with the section of vertical profile shown in fig. 3. Fig. 5 shows a second preferred embodiment of the window according to the present invention, in which the frame and the wings are sectioned with a vertical plane, perpendicular to the rotation axis of the handle, in order to show the mechanisms contained inside the metal profiles of the wings and the frame; for easier representation, the top figure shows half of the window with the safety device in closed position, while the bottom figure shows the other half of the window with the safety device in opened position. Fig. 6 is an enlarged section of fig. 5 with plane B-B Fig. 7 is an enlarged section of fig. 5 with plane C-C. Fig. 8 is an enlargement of a detail of fig. 5. With reference to figures 1 to 4, in a preferred embodiment, the window according to the present invention comprises a pair of vertical rods (1 and 2) that are housed and slide inside the vertical metal profile (3) of the wing with handle, not shown in the figure, of known type, with a sprocket wheel (4) that engages with an opposite pair of racks (5 and 6) with vertical axis, respectively connected to the upper (1) and lower (2) rod, so that the translation of the racks (5 and 6) determines the identical translation of the rods (1 and 2). Multiple pins (7) with ' ■ mushroom" shape and horizontal axis are laterally screwed along the rods (1 and 2), whose stem (7a) is housed and slides inside vertical slots (8) located on the vertical profile (3), from which the enlarged heads (7b) of the pins (7) protrude. The post (3a) against which the vertical profile (3) of the wing with handle is positioned has a series of notches (9) that can house the enlarged heads (7b) of the pins (7). The notches (9) end in corresponding slots (9a) that match the slots (8) of the vertical profile (3), so that, further to the translation of the rods (1 and 2), the enlarged heads (7b) can slide and engage in the slots (9a) of the post (3a), as shown in fig. 4 with a dotted line. The end of each vertical rod (1 and 2) located in opposite position with respect to the one connected to the driving racks (5 and 6) is articulated and matched to an horizontal rod (10) contained in the transversal metal upper (3c) and lower (3d) profile of the wing with handle. More precisely, the end of the horizontal rod (10) that faces the hinges of the wing is pivoted to the containing profile (3c or 3d) by means of a fixed pin (11) with horizontal axis; the rods (10) are also pivoted to the coupling rods (1 and 2) by means of a mobile pin (1a and 2a), so that the rods (10) are forced to make small oscillations around their fixed pins (11) every time the rods (1 and 2) make translation travels. It must be said that a series of cylindrical pins (12) with vertical axis is fixed along each horizontal rod (10) and inserted into guide holes (13) suitably located on the profiles (3c or 3d); an identical series of holes (14) located on the sides (15) of the window frame is interfaced with the guide holes (13). It is obvious that the oscillation of the horizontal rods (10) determines the ejection or engagement of the pins (12) from/into the guide holes (13), thus engaging or releasing the wing to/from the frame (15). In case of a window with two wings, as the one shown in fig. 1 , also the second wing, that is the wing without handle, is provided with two rods (10a) with pins (12a) that slide into guide holes (13a) interfaced with corresponding holes (14a) located on the frame (15). In this case, the end of the rods (10a) located in opposite position with respect to the fixed hinging pin (11a) has a fork (16) that matches with a tooth (1b or 2b) located at the end of the rods (1 and 2). The teeth (1b and 2b) are housed and slide into slots (17) located on the profile (3) and interfaced with corresponding slots (17a) located on the post (3a). A permanent magnet (M) located inside the profiles (3c and 3d) holds the rods (10a) at the end of their travel, until the window remains opened. The description continues with a second preferred embodiment of the present invention with reference to figures 5 to 7. The second preferred embodiment of the window according to the present invention differs from the first embodiment in a few elements, one of which consists in the coupling means applied along the vertical rods actuated by the pair of racks (5 and 6); in the second preferred embodiment of the invention the coupling means are represented by hooked beaks, instead of "mushroom" pins. Another difference is represented by the position of the support rods for the pins with vertical axis (12 and 12a), which are contained in the frame (15) of the window. In the following description the same numbers are used to identify the common elements of the first and the second embodiment of the present invention. With reference to fig. 5, the pinion (4) of the handle causes the inverse translation of an opposite pair of racks (5 and 6), respectively connected, by means of articulated connecting rods (5a and 6a), to two vertical rods (100 and 200) that are housed and slide inside the metal vertical profile (3) of the wing with handle. Multiple hooks (70) are fixed along the rods (100 and 200), capable of engaging and coupling with slots (90) located on the post (3a) against which the profile (3) of the wing with handle is positioned, which is provided with slots (80) from which the hooks (70) protrude outside the vertical metal profile (3). The rods (100 and 200) are connected to the internal wall of the metal vertical profile (3) by means of a series of arms (18), so that the vertical translation of the racks (5 and 6) determines a roto-translation of the rods (100 and 200). Because of this, when turning the handle in closing direction, the hooks (70) exit the slots (80) of the profile (3) and engage with the slots (90) of the post (3a). The frame (15) of the window houses a pair of telescopic rods (10 and 10a) pivoted on pins (11 e 11a) and provided with a series of pins with vertical axis (12 and 12a) housed inside guide holes (14a) located on the frame (15) and interfaced with corresponding holes (13A) located on the metal profiles of the transversal upper (3c) and lower (3d) sides of the wing. Return springs (19) constantly push the rods (10 and 10a) to cause the return of the pins (12 and 12a) inside the profiles (3c and 3d). The end of the rods (10 and 10a) located in opposite position with respect to the hinge has toothed sections (120 or 120a) that engage with toothed pinions (121 and 121a), both engaging with a toothed ratchet (20) located in intermediate position. The ratchet (20) makes alternated vertical travels in a guide housing (21) aligned with the point (22) applied at the ends of the rods (100 and 200). This means that when the handle is turned in closed position the points (22) are inserted into the housings (21) of the toothed ratchets (20). The ratchets (20) are pushed forward by the points (22), causing the oscillation of the rods (10 and 10a), thus inserting the pins (12 and 12a) inside the holes (13A). Although the entire description refers to windows with one or two wings, it is understood that the invention can be advantageously used also for the realisation of French windows or doors.

Claims: Claims 1) A metal window frame provided with anti-burglary locking device, of the type comprising a handle that actuates a pinion (4) that engages with an opposite pair of racks (5 and 6) connected to two vertical rods (1 and 2) or (100 and 200), characterised by the fact that the rods are provided with coupling means (7 or 70) capable of engaging with suitable housings (9 or 90) located on the post (3a) against which the vertical profile (3) with handle is positioned, which features slots (8 or 80) for the coupling means (7 or 70 ). 2) A metal window frame provided with anti-burglary locking device, according to claim 1 , characterised by the fact that multiple pins (7) with "mushroom" shape and horizontal axis are laterally screwed along the rods (1 and 2), whose stem (7a) is housed and slides inside vertical slots (8) located on the vertical profile (3), from which the enlarged heads (7b) of the pins (7) protrude; it being provided that the post (3a) against which the vertical profile (3) of the wing with handle is positioned has a series of notches (9) that can house the enlarged heads (7b) of the pins (7), ending in corresponding slots (9a) that match the slots (8) of the vertical profile (3). 3) A metal window frame provided with anti-burglary locking device, according to claim 1 , characterised by the fact that the racks (5 and 6) are respectively connected, by means of articulated connecting rods (5a and 6a), to the rods (100 and 200) provided with multiple hooks (70) capable of engaging and coupling with the slots (90) located on the post (3a) against which the profile (3) of the wing with handle is positioned, which is provided with slots (80) from which the hooks (70) protrude outside the vertical metal profile (3); it being provided that the rods (100 and 200) are connected to the internal wall of the metal vertical profile (3) by means of a series of arms (18). 4) A metal window frame provided with anti-burglary locking device, according to claims 1 and 2, characterised by the fact that each vertical rod (1 and 2) is matched at one end, by means of pivoting pins (1a and 2a), to an horizontal rod (10) contained in the metal profiles of the transversal upper (3c) and lower (3d) sides of the wing with handle; it being provided that the other end of the horizontal rod (10) is pivoted by means of a fixed pin (11) with horizontal axis to the containing profile (3c or 3d); it also being provided that each horizontal rod (10) is provided with a series of cylindrical pins (12) with vertical axis, inserted into guide holes (13) located on the profiles (3c or 3d) and interfaced with a corresponding series of holes (14) located on the sides of the window frame (15). 5) A metal window frame provided with anti-burglary locking device, according to claims 1 , 2 and 4, characterised by the fact that also the second wing, that is the wing without the handle, is provided with two rods (10a) with pins (12a) sliding inside guide . holes (13a), interfaced with corresponding holes (14a) located on the frame (15), it being provided that the end of the rods (10a) located in opposite position with respect to the fixed hinging pin (11 a) has a fork (16) that matches with two teeth (1b and 2b) located at the end of the rods (1 and 2), which are housed and slide into slots (17) located on the profile (3) and interfaced with corresponding slots (17a) located on the post (3a). 6) A metal window frame provided with anti-burglary locking device, according to claims 1 and 3, characterised by the fact that the frame (15) of the window houses one (in case of one-wing windows) or two (in case of two- wing windows) telescopic rods (10 and 10a) pivoted on pins (11 and 11a) provided with a series of pins with vertical axis (12 and 12a) housed inside guide holes (14a) located on the frame (15) and interfaced with corresponding holes (13A) located on the metal profiles of the transversal upper (3c) and lower (3d) sides of the wing with handle; it being provided that return springs (19) constantly push the rods (10 and 10a) to cause the return of the pins (12 and 12a) inside the profiles (3c and 3d); it also being provided that the end of the rods (10 and 10a) located in opposite position with respect to the hinge has toothed sections (120 and 120a) that engage with toothed pinions (121 and 121a), both engaging with a toothed ratchet (20), located in intermediate position, which makes alternated vertical travels in a guide . housing (21) aligned with the point (22) applied at the ends of the rods (100 and 200).

Inventors: CIPRIANI RENZO, PAOLINI GIUSEPPE, CIPRIANI, RENZO, PAOLINI, GIUSEPPE
Applicants: CIPRIANI RENZO, PAOLINI GIUSEPPE, CIPRIANI, RENZO, PAOLINI, GIUSEPPE
Application year: 2001
Main classification: E05C7
IPC codes: E05C7, E05C9