Grate device which can be opened

Description

[0001] The present invention refers to the doors or windows for buildings, and in particular it refers to a safety grate device that can be opened, associable to doors and windows openings in order to make them impassable in a closing condition and to make them passable in an opening condition.

[0002] There are known grates, that may be opened, comprising a casing fixed to the edge of the opening of the vertical window or of the door and a set of vertical rods sliding in respect to the casing in horizontal direction, see, e.g. EP 0 557 254 A1, WO 2006/022522 A1 and EP 1 571 288 A2.

[0003] Contiguous vertical rods are interconnected by a set of rectilinear connecting rods that have also the aim to prevent the mutual removal between the vertical rods.

[0004] Generally, such connecting rods are almost vertical in the opened condition and tilted, of about 45°, in the closed condition

[0005] The ends of said connecting rods are connected inside the vertical rods, which are equipped with long longitudinal slots for the passage of said ends in all the angles.

[0006] A disadvantage of such known grates, which may be opened, consists in the fact that in the closed condition, one of the two slots for each connecting rod is easy accessible and can constitute a point of weakness of the grate that can be used in order to force it.

[0007] Other disadvantage consists in the fact that such longitudinal slots, because of the shape of the connecting rods and their almost vertical position, are very long.

[0008] Further disadvantage consists in the fact that such lo ng slots weaken the vertical rods.

[0009] An object of the present invention is to propose a grate device which can be opened and in which the more accessible and exposed to the housebreaking risks longitudinal slots are closed in a mutual removal condition of the vertical rods, or in the closing condition of the grate.

[0010] Another object is to propose a grate device with shorter slots than the known ones.

[0011] A further object is to propose a grate with elements fit to reinforce the rods at the slot level.

[0012] The above mentioned objects are achieved according to the content of the claims.

[0013] The characteristics of the invention are highlighted in the following with particular reference with the attached drawings, in which:

• figure 1 shows a frontal schematic view of the grate device, object of the present invention, in a condition of partial opening;
• figure 2 shows an axonometric view of the device of figure 1 sectioned according a median plan;
• figure 3 shows an enlarged view of a detail of figure 2;
• figure 4 shows an axonometric, enlarged and complete view of a closing means only partially visible in figure 3, because sectioned;
• figure 5 shows a not in scale view sectioned according to the plane V - V of figure 1;
• figure 6 shows an enlarged view of a detail of figure 5;
• figure 7 shows an axonometric view of a connecting rod of figure 1.

[0014] With reference to the figures from 1 to 7, with 1 is indicated the grate device object of the present invention

[0015] The device 1 comprising a set of hollow and parallel each other vertical rods 2, preferably consisting in aluminium section bars, whose lower and upper bars slide in horizontal guides of a casing 3 fixed to the perimeter of a window, a door or the like.

[0016] The vertical rods slide along the guides between a closing condition, in which they are at the maximum mutual distance preventing the passage through the casing and therefore closing the door or the window, and a complete opened condition, in which they are at the minimum mutual distance, and vice versa.

[0017] Such device 1 further comprises a set of connecting rods 4 for the connection of adjacent vertical rods.

[0018] The first upper end 5 and the second lower end 8 of each of such connecting rods 4, as an example made of aluminium, steel or other metallic material, have a respective pass-through hole with axis perpendicular to the longitudinal axis of the connecting rod.

[0019] The first end 5 is bound inside the longitudinal and central cavity 6 of a vertical rod 2 by means of a respective first slot 7 made in such vertical rod 2.

[0020] The second end 8 is bound inside the cavity 6 of a vertical rod 2 adjacent to the vertical rod of the first end, by means of a respective second slot 9 of the latter vertical rod 2. Such second slot 9 is lower in respect to the first slot of the connecting rod.

[0021] The first end 5 of each connecting rod 4 is connected in a rotating manner, by means of a respective mobile pin 10 inserted in the pass-through hole of said first end, to a closing means 11, as an example made of steel, aluminium or other resistant material.

[0022] The closing means 11 is sliding within the longitudinal cavity 6 of the respective vertical rod 2 and is fit, in the closed condition of the device 1, to close the correspondent first slot 7.

[0023] The second end 8 of each connecting rod 4 is connected to the respective vertical rod 2 by means of a respective fixed pin 16 engaged in the pass-through hole of such second end.

[0024] The closing means 11 has a transversal section shaped almost like an "U"; in particular the closing means 11 is lengthened shaped, with a longitudinal median side 13 whose longitudinal edges have longitudinal sides perpendicular to the median side 13.

[0025] The closing means 11 has a pass-through hole 14, for respective mobile pin 10, realized in a protruding portion 12 of the median side 13 of the closing means 11.

[0026] Alternatively the closing means 11 may have one transversal section shaped almost like a "L" with one of the two edges fit to close the respective slot.

[0027] It is important to notice that the first slot 7, being the upper one, is not protect from the respective connecting rod but that the closing means 11 closes it, protecting the vertical rod from lock-picking attempts, preventing the insertion of levers or similar in such first slot.

[0028] Each connecting rod 4 is shaped approximately like a lengthened "S" in order to allow the stagger of the slots 7, 9 of opposite sides of the same vertical rod.

[0029] Such stagger prevent vertical rod from lock-picking attempts also in absence of closing means 11 because it prevents the insertion of levers through the section of vertical rod and avoids that such section is weakened by the presence of two faced slots. Moreover the "S" shaping allows to realize shorter slots.

[0030] The portions 30, 31 of the faces of the connecting rod 4 that, in the opened condition, are faced to the slots first 7 second 9, are tilted approximately towards the centre of the connecting rod, while the remaining portions of the same faces are mutually parallel and aligned to the geometric axis of the connecting rod.

[0031] Alternatively the connecting rod 4 may almost be shaped with the lateral portions having almost the same length, parallel each other, staggered and joined by a short central portion tilted in respect to them.

[0032] A further alternative provides that the connecting rods 4 maybe almost straight.

[0033] Each vertical rod 2 is equipped with a respective connection means 15, as an example made of metal or synthetic material, having lengthened shape and sliding inside the cavity 6 of the vertical rod 2.

[0034] Said connection means 15 is connected to the closing means 11 of the respective vertical rod 2 maintaining them at an almost constant mutual distance. The connection means 15 are connected to the closing means 11 of the respective vertical rod 2 by means of the mobile pins 10 of the closing means 11.

[0035] Each connection means 15 has a transversal section having approximately a squared omega shape with the convex central longitudinal portion inserted between longitudinal sides of each corresponding closing means 11.

[0036] The longitudinal edges of each omega shaped connection means 15 are housed in a sliding manner in respective longitudinal grooves 17 realized in the vertical rod 2 inside the respective cavity.

[0037] Each connection means 15 is provided with a set of lengthened openings 18, shaped as a pass-through slit, each one for a correspondent fixed pin 16. Such openings 18 avoid the interference between the fixed pins and the connection means 15 allowing the sliding thereof

[0038] The ends of each mobile pin 10 have respective burglar-resistant bushing 19, 20, as an example made of metal or synthetic material, engaged in a sliding manner in respective longitudinal housing 21, 22 made in the cavity 6 of the vertical rod 2.

[0039] Each vertical rod 2 further has two longitudinal lateral cavities 23, 24 each one fit to house a set of cut resistant rods 25, as an example made of steel.

[0040] The ends of each fixed pin 16 for the fixing of the second end 8 of the respective connecting rod 4 have respective shaped elements 26 complementary and engaged to the cut resistant rods 25.

[0041] In the opened condition, each connecting rod 4 is almost parallel to the vertical rod 2 and, in the closed condition, the angle comprised between such connecting rod 2 and each one of the respective vertical rod 2 is comprised between almost 30° and 90°, preferably almost 45°.

[0042] Alternatively to the above disclosed embodiment which provides, for each vertical rod, a connection means to which distinct closing means are fixed each one of which is fit to close a respective first slot of said vertical rod, the invention provides that all the closing means 11 of a vertical rod are made integral, as an example by a removal working of material in a single elongated member fixed to the connection means 15.

[0043] Another alternative provides that the closing means 11 and the connection means 15 of each vertical rod are made integral as an example by working of a single lengthened member, as a tubular section bar.

[0044] The operation of the device provides that starting from the opened condition, the progressive removal of vertical rods causes the inclination of the connecting rods and the going down of the closing means until these latter, in the closed condition of the device, close the first slots.

[0045] An advantage of the present invention is to provide a grate device which may be opened and in which the longitudinal slots are more accessible and exposed to the housebreaking risks, are closed in the mutual removal condition of the vertical rods, that is in the closing condition of the grate. Other advantage is to provide a grate device with shorter slots in respect to the known ones .

[0046] Further advantage is to provide a grate with elements fit to reinforce the vertical rods at the slots level.

Claims

1. Grate device which can be opened comprising a set of vertical rods (2) hollow and parallel each other, associated to a casing (3) in a sliding manner between a closing condition, in which such vertical rods (2) are at the maximum mutual distance preventing the passage through the casing, and an opening condition, in which the vertical rods (2) are at the minimum mutual distance, and vice versa; such device (1) further comprises a set of connecting rods (4) for the connection of the adjacent vertical rods; each one of said connecting rods (4) having a first end (5) bound inside the longitudinal and central cavity (6) of a vertical rod (2) through a respective first slot (7) made in such vertical rod (2) and a second end (8) bound inside the cavity (6) of a vertical rod (2) adjacent to said vertical rod of the first end (5), through a respective second slot (9) of the vertical rod (2) of the first end (5); said device (1) being characterized in that at least the first end (5) of each connecting rod (4) is connected in a rotating way, by means of a respective mobile pin (10), to a closing means (11) sliding within the longitudinal cavity (6) of the respective vertical rod (2) and fit, in the closed condition of the device (1), to close the correspondent first slot (7).

2. Device according to claim 1 characterized in that an end of the closing means (11) has a pass-through hole (14) for the respective mobile pin (10).

3. Device according to claim 2 characterized in that each closing means (11) has a lengthened shape, with a longitudinal median side (13) whose longitudinal edges have longitudinal side perpendicular to the median side (13), such closing means (11) having therefore a transversal section shaped almost like an "U".

4. Device according to claim 3 characterized in that the pass-through hole (14) for the respective mobile pin (10) is made in a protruding portion (12) of the median side (13) of the closing means (11)

5. Device according to claim 1 characterized in that each vertical rod (2) is equipped with a respective connection means (15), lengthened shaped and sliding inside the cavity (6) of the vertical rod (2), said connection means (15) is connected to the closing means (11) of such respective vertical rod (2) maintaining them to an almost constant mutual distance.

6. Device according to claims 2 and 5 characterized in that the connection means (15) is connected to the closing means (11) of the respective vertical rod (2) by means of the mobile pins (10) of said closing means (11).

7. Device according to claims 3 and 5 characterized in that each connection means (15) has a transversal section shaped almost like a squared omega, with the convex longitudinal central portion inserted among the longitudinal sides of each corresponding closing means (11).

8. Device according to claim 7 characterized in that the longitudinal edges of each omega shaped connection means (15) are housed in a sliding manner in respective longitudinal grooves (17) made in the vertical rod (2) inside the respective cavity.

9. Device according to claim 1 characterized in that the second end (8) of each connecting rod (4) is connected to the respective vertical rod (2) by means of a respective fixed pin (16).

10. Device according to claims 3 and 5 characterized in that each connection means (15) is provided with a set of lengthened openings (18) each one for a correspondent fixed pin (16) and fit to allow the sliding of said connection means (15).

11. Device according to claim 1 characterized in that each connecting rod (4) is almost straight.

12. Device according to claim 1 characterized in that the ends of each mobile pin (10) have respective burglar-resistant bushings (19, 20) engaged in a sliding manner in respective longitudinal housings (21, 22) made in the cavity (6) of the vertical rod (2).

13. Device according to claim 1 characterized in that each vertical rod (2) has two longitudinal lateral cavities (23, 24) each one fit to houses a set of cut resistant rods (25).

14. Device according to claims 9 and 13 characterized in that the ends of each fixed pin (16) for the fixing of the second end (8) of the respective connecting rod (4) have respective shaped elements (26) complementary and engaged to the cut resistant rods (25).

15. Device according to any of the claims 1-14 characterized in that in the opened condition, each connecting rod (4) is almost parallel to the vertical rods (2) and, in the closed condition, the angle comprised between such connecting rod (4) and each one of the respective vertical rods (2) is comprised between about 30° and 90°, preferably about 45°.

16. Device according to any of the claims 1-15 characterized in that all the closing means (11) of a vertical rod are made integral, carrying out a single elongated member.

17. Device according to claims 5 and 16 characterized in that the member that forms the closing means (11) of a vertical rod is fixed to the connection means (15).

Ansprüche

1. Gittervorrichtung, die geöffnet werden kann, umfassend einen Satz vertikaler Stangen (2), die hohl und parallel zueinander sind, auf verschiebbare Weise in Verbindung mit einem Gehäuse (3) zwischen einem geschlossenen Zustand, in dem die vertikalen Stangen (2) sich im maximalen gegenseitigen Abstand befinden, wodurch der Durchgang durch das Gehäuse verhindert wird, und einem geöffneten Zustand, in dem die vertikalen Stangen (2) sich im minimalen gegenseitigen Abstand befinden, und umgekehrt, wobei die Vorrichtung (1) überdies einen Satz von Verbindungsstangen (4) zur Verbindung der benachbarten vertikalen Stangen umfasst, wobei jede der Verbindungsstangen (4) ein erstes Ende (5) aufweist, das durch einen entsprechenden ersten Schlitz (7), der in der vertikalen Stange (2) gebildet ist, innerhalb des Längs- und mittleren Hohlraums (6) einer vertikalen Stange (2) eingefasst ist, und ein zweites Ende (8), das durch einen entsprechenden zweiten Schlitz (9) der vertikalen Stange (2) des ersten Endes (5) innerhalb des Hohlraums (6) einer vertikalen Stange (2) eingefasst ist, die der vertikalen Stange des ersten Endes (5) benachbart ist, wobei die Vorrichtung (1) dadurch gekennzeichnet ist, dass zumindest das erste Ende (5) von jeder Verbindungsstange (4) auf eine drehbare Weise mittels eines entsprechenden beweglichen Stifts (10) mit einem Schließmittel (11) verbunden ist, das innerhalb des Längshohlraums (6) der entsprechenden vertikalen Stange (2) gleitet und im geschlossenen Zustand der Vorrichtung (1) geeignet ist, um den entsprechenden ersten Schlitz (7) zu schließen.

2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass ein Ende der Schließmittel (11) ein Durchgangsloch (14) für den entsprechenden beweglichen Stift (10) aufweist.

3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet dass jedes Schließmittel (11) eine längliche Form mit einer mittleren Längsseite (13) aufweist, deren Längskanten Längsseiten aufweisen, die senkrecht zur mittleren Seite (13) sind, derart, dass die Schließmittel (11) daher einen Querschnitt aufweisen, der nahezu U-förmig ist.

4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass das Durchgangsloch (14) für den entsprechenden beweglichen Stift (10) in einem vorspringenden Abschnitt (12) der mittleren Seite (13) der Schließmittel (11) gebildet ist.

5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass jede vertikale Stange (2) mit einem entsprechenden Verbindungsmittel (15) ausgestattet ist, das eine längliche Form aufweist und innerhalb des Hohlraums (6) der vertikalen Stange (2) gleitet, wobei das Verbindungsmittel (15) mit dem Schließmittel (11) einer entsprechenden vertikalen Stange (2) verbunden ist, wodurch sie in einem nahezu konstanten gegenseitigen Abstand gehalten werden.

6. Vorrichtung nach Anspruch 2 und 5, dadurch gekennzeichnet, dass das Verbindungsmittel (15) mittels der beweglichen Stifte (10) des Schließmittels (11) mit dem Schließmittel (11) der entsprechenden vertikalen Stange (2) verbunden ist.

7. Vorrichtung nach Anspruch 3 und 5, dadurch gekennzeichnet, dass jedes Verbindungsmittel (15) einen Querschnitt aufweist, der nahezu die Form eines quadratischen Omegas aufweist, wobei der konvexe mittlere Längsabschnitt zwischen den Längsseiten von jedem entsprechenden Schließmittel (11) eingefügt ist.

8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die Längskanten von jedem omegaförmigen Schließmittel (15) auf eine gleitende Weise in entsprechenden Längsrillen (17) untergebracht sind, die in der vertikalen Stange (2) innerhalb des entsprechenden Hohlraums gebildet sind.

9. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das zweite Ende (8) von jeder Verbindungsstange (4) mittels eines entsprechenden festen Stifts (16) mit der entsprechenden vertikalen Stange (2) verbunden ist.

10. Vorrichtung nach Anspruch 3 und 5, dadurch gekennzeichnet, dass jedes Verbindungsmittel (15) mit einer Menge von länglichen Öffnungen (18), jeweils eine für einen entsprechenden festen Stift (16), versehen ist, und geeignet ist, um das Gleiten des Verbindungsmittels (15) zuzulassen.

11. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass jede Verbindungsstange (4) nahezu gerade ist.

12. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Enden von jedem beweglichen Stift (10) entsprechende einbruchhemmende Laufbuchsen (19, 20) aufweisen, die auf eine gleitende Weise in entsprechende Längsgehäuse (21, 22) eingreifen, die im Hohlraum (6) der vertikalen Stange (2) gebildet sind.

13. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass jede vertikale Stange (2) zwei seitliche Längshohlräume (23, 24) aufweist, die jeweils geeignet sind, um eine Menge von schnittfesten Stangen (25) unterzubringen.

14. Vorrichtung nach Anspruch 9 und 13, dadurch gekennzeichnet, dass die Enden von jedem festen Stift (16) zur Befestigung des zweiten Endes (8) der entsprechenden Verbindungsstange (4) Elemente (26) mit entsprechender Form aufweisen, die ergänzend sind und in die schnittfesten Stangen (25) eingreifen.

15. Vorrichtung nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, dass jede Verbindungsstange (4) im geöffneten Zustand nahezu parallel zu den vertikalen Stangen (2) ist und im geschlossenen Zustand der Winkel, der zwischen der Verbindungsstange (4) und jeder der entsprechenden vertikalen Stangen (2) enthalten ist, zwischen etwa 30° und 90°, vorzugsweise etwa 45°, liegt.

16. Vorrichtung nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, dass alle Schließmittel (11) einer vertikalen Stange einstückig hergestellt sind und ein einziges längliches Element ausführen.

17. Vorrichtung nach Anspruch 5 und 16, dadurch gekennzeichnet, dass das Element, das das Schließmittel (11) einer vertikalen Stange bildet, an den Verbindungsmitteln (15) befestigt ist.

Revendications

1. Dispositif de grille qui peut être ouvert, comprenant un jeu de tiges verticales (2) creuses et parallèles l'une à l'autre, associées à un cadre (3) en mode coulissant entre un état de fermeture, dans lequel ces tiges verticales (2) se trouvent à une distance mutuelle maximale empêchant le passage à travers le cadre, et un état d'ouverture, dans lequel les tiges verticales (2) se trouvent à une distance mutuelle minimale, et vice-versa ; ce dispositif (1) comprend en outre un jeu de tiges de raccordement (4) pour raccorder les tiges verticales adjacentes ; chacune desdites tiges de raccordement (4) ayant une première extrémité (5) délimitée à l'intérieur de la cavité longitudinale et centrale (6) d'une tige verticale (2) à travers une première fente respective (7) formée dans cette tige verticale (2) et une seconde extrémité (8) délimitée à l'intérieur de la cavité (6) d'une tige verticale (2) adjacente à ladite tige verticale de la première extrémité (5), à travers une seconde fente respective (9) de la tige verticale (2) de la première extrémité (5) ; ledit dispositif (1) étant caractérisé en ce qu'au moins la première extrémité (5) de chaque tige de raccordement (4) est raccordée à rotation, au moyen d'une broche mobile respective (10), à un moyen de fermeture (11) coulissant à l'intérieur de la cavité longitudinale (6) de la tige verticale respective (2) et s'ajuste, à l'état fermé du dispositif (1), pour fermer la première fente correspondante (7).

2. Dispositif selon la revendication 1, caractérisé en ce qu'une extrémité du moyen de fermeture (11) présente un trou traversant (14) pour la broche mobile respective (10).

3. Dispositif selon la revendication 2, caractérisé en ce que chaque moyen de fermeture (11) a une forme allongée avec un côté médian longitudinal (13) dont les bords longitudinaux ont un côté longitudinal perpendiculaire au côté médian (13), ce moyen de fermeture (11) ayant donc une section transversale presque en forme de « U ».

4. Dispositif selon la revendication 3, caractérisé en ce que le trou traversant (14) pour la broche mobile respective (10) est formé dans une portion saillante (12) du côté médian (13) du moyen de fermeture (11).

5. Dispositif selon la revendication 1, caractérisé en ce que chaque tige verticale (2) est équipée d'un moyen de raccordement respectif (15), de forme allongée et coulissant à l'intérieur de la cavité (6) de la tige verticale (2), ledit moyen de raccordement (15) étant raccordé au moyen de fermeture (11) de cette tige verticale respective (2) en les maintenant à distance mutuelle presque constante.

6. Dispositif selon les revendications 2 et 5, caractérisé en ce que le moyen de raccordement (15) est raccordé au moyen de fermeture (11) de la tige verticale respective (2) au moyen des broches mobiles (10) dudit moyen de fermeture (11).

7. Dispositif selon les revendications 3 et 5, caractérisé en ce que chaque moyen de raccordement (15) a une section transversale conformée presque en oméga carré avec la portion centrale longitudinale convexe insérée parmi les côtés longitudinaux de chaque moyen de fermeture correspondant (11).

8. Dispositif selon la revendication 7, caractérisé en ce que les bords longitudinaux de chaque moyen de raccordement en forme d'oméga (15) sont logés en mode coulissant dans des rainures longitudinales respectives (17) formées dans la tige verticale (2) à l'intérieur de la cavité respective.

9. Dispositif selon la revendication 1, caractérisé en ce que la seconde extrémité (8) de chaque tige de raccordement (4) est raccordée à la tige verticale respective (2) au moyen d'une broche fixe respective (16).

10. Dispositif selon les revendications 3 et 5, caractérisé en ce que chaque moyen de raccordement (15) est pourvu d'un jeu d'ouvertures allongées (18), chacune pour une broche fixe correspondante (16), et s'ajuste pour permettre le coulissement dudit moyen de raccordement (15).

11. Dispositif selon la revendication 1, caractérisé en ce que chaque tige de raccordement (4) est presque droite.

12. Dispositif selon la revendication 1, caractérisé en ce que les extrémités de chaque broche mobile (10) ont des douilles respectives anti-effraction (19, 20) engagées en mode coulissant dans des boîtiers longitudinaux respectifs (21, 22) ménagés dans la cavité (6) de la tige verticale (2).

13. Dispositif selon la revendication 1, caractérisé en ce que chaque tige verticale (2) a deux cavités latérales longitudinales (23, 24), qui s'ajustent chacune pour loger un jeu de tiges (25) résistant à la coupe.

14. Dispositif selon les revendications 9 et 13, caractérisé en ce que les extrémités de chaque broche fixe (16) pour la fixation de la seconde extrémité (8) de la tige de raccordement respective (4) ont des éléments moulés respectifs (26) complémentaires des tiges résistant à la coupe (25) et engagés dans celles-ci.

15. Dispositif selon l'une quelconque des revendications 1 à 14, caractérisé en ce que, à l'état ouvert, chaque tige de raccordement (4) est presque parallèle aux tiges verticales (2) et, à l'état fermé, l'angle compris entre cette tige de raccordement (4) et chacune des tiges verticales respectives (2) est compris entre environ 30° et 90°, de préférence aux environs de 45°.

16. Dispositif selon l'une quelconque des revendications 1 à 15, caractérisé en ce que tous les moyens de fermeture (11) d'une tige verticale sont venus de matière, constituant ainsi un seul élément allongé.

17. Dispositif selon les revendications 5 et 16, caractérisé en ce que l'élément qui forme le moyen de fermeture (11) d'une tige verticale est fixé au moyen de raccordement (15).

Drawing