HINGE FOR A ROOF WINDOW WITH PIVOTING OR DOUBLE ACTION SASH

Description

[0001] A hinge for a roof window with pivoting or double action sash, comprising a fastener designed for fastening of a covering member that protects the side members of roof window sash against weather conditions, where said fastener being mounted on said rotary hinge.

[0002] On the external side the roof windows are equipped with covering members, usually made of metal sheet and protecting the window frame and the sash against adverse effects of weather conditions. In the case of windows with pivoting or dual-action sashes, in which the rotation axis extends between the top member and the bottom member of window frame, two covering members are used which are secured to the window side members, one of them above and the other one below the sash rotation axis.

[0003] Most often, the side covering members are screw fastened and for this purpose they have screw holes with the same spacing in all members. In the side members of a roof window the holes for fastening screws which are located near the top member of a window frame and the bottom member of a sash are usually drilled in fixed or sliding securing sockets provided at both ends of the side members of a window, whereas near the sash pivoting axis the holes for fastening screws are located in fasteners constituting a part of the pivot hinge.

[0004] A hinge for a roof pivot window is known, also from the patent specification WO/ 0131155, which consists of a part secured to a window frame and a part secured to window sash. Each part of a hinge has a base plate with holes for fastening screws. Moreover, each base plate has at one end a fastener with a screw hole for securing side covering members near the pivot axis of a window sash. The fastener constitutes a monolithic part of the base plate with fixed position.

[0005] Also, from patent specification WO/ 2006002633 a hinge for a roof window with a pivot sash is known, which is equipped with two fasteners having screw holes. One fastener is snap fastened in a holder formed as the monolithic part of the base plate secured to a sash, and the other one is a monolithic part of the hinge intermediate member which is riveted to the base plate fastened to the side member of a window frame. The position of both fasteners with screw holes is fixed relative to the base plates of the pivot hinge.

[0006] Even if the production regime is followed, it often happens that the hole spacing in the side member of a window is not the same as the screw hole spacing in the covering member. If the corresponding pairs of holes in window members and covering members being connected together are not as coaxial as required, a fastening screw will be screwed in at an angle other than 90°. This hinders assembly work and affects the aesthetic qualities of joints between cover members and the side members of a window. As the experience proves, fastening of cover members to side members of a window by screws put into holes located in fixed positions causes problems during assembly.

[0007] The invention disclosed in patent specification WO 2008010735 could solve the above problems, as it proposes to introduce to the hinge of roof window with pivoting sash at least one fastener slidably fixed to the rectangular arm. Such fastener has the hole perpendicular to the direction of its movement along an arm in the hinge, and also has a supporting element parallel to the direction of fastener movement. In this case, regardless )the solution adopted, the second fastening point of cover member has a fixed location relative to window sash. Despite advantages, in this solution the uncontrolled movements of covering member can occur relative to the window frame covering member which is installed in fixed position in upper part of window frame, and cause leakages.

[0008] An object of the present invention is to eliminate this inconvenience by using the pivoting or double-action roof window with the hinge according to claim 1. The hinge is equipped with a fastener connected to it and put during assembly on the supporting arm with preferably rectangular profile formed in the hinge close to the sash pivoting axis and snap-fixed after achieving the required position. This fastener constitutes a base for connecting the external covering member to the side member of window sash by using fastening means, usually screws.

[0009] The fastener is composed of two functional parts, i.e. the base part and the movable part. Both parts are connected and positioned relative to each other during assembly with simultaneous positioning on the supporting arm. In base part and the movable part the holes are provided which are coaxial in the closed position of the fastener, thus forming the socket for elements that fasten the covering member. When the fastener is mounted, the socket axis should be substantially perpendicular to the sash plane. The hole in base part of the fastener is a through hole, whereas the hole in movable part may be a blind one. However, it should be noted that hole depth must match the length of screw used to fasten the covering member.

[0010] In the operating position the fastener must be precisely positioned against the supporting arm, hence means for correct positioning of fastener's parts relative to each other and correct positioning of the fastener relative to the supporting arm must be provided. For this purpose, among other things, the snap-on mechanism is used, with the recess formed in the base part and the tongue located on the movable part. The second fulcrum for the movable part being closed is created by the positioning assembly consisting of the longitudinal holder formed in the base part of the fastener and the tongue which enters the holder when the fastener is in closed position. Such supporting method allows for free, but limited to a certain range, angular movement of movable part around the axis passing through the bottom of the holder and substantially perpendicular to the fastener's symmetry plane.

[0011] Additionally, in order to limit the movement and ensure correct positioning in the direction perpendicular to the symmetry plane, the fastener in its movable part has retaining strips shaped preferably parallel to each other and symmetrically with respect to the plane perpendicular to the apparent axis of rotation of movable part relative to the base part. During closing of the fastener these strips enter the retaining sockets having the shape and dimensions corresponding to the shape and dimensions of these retaining strips. In this solution the rotation of movable part relative to the base part during screwing the fastening element into the socket is blocked. When closed, such fastener constitutes a fully rigid body.

[0012] The fixed connection of the fastener to the supporting arm is ensured by using at least the third positioning solution of the three independent solutions described below.

[0013] Thanks to the suitably shaped walls of the base part and the movable part, the fastener in its closed position defines a through channel extending in the direction parallel to the axis of mutual rotation of the fastener parts. The dimensions and cross-sectional shape of this channel reflect the dimensions and cross-sectional shape of the supporting arm to which the fastener is fixed. In this solution the system with one degree of freedom, i.e. movement along the supporting arm, is created.

[0014] It should be noted that for practical and geometrical reasons it is favourable when the securing channel does not intersect with the recess provided for fastening element used for fastening of the covering member. In order to enhance the precision of assembly operations and to obtain better stiffness of the connection between the fastener and supporting arm the additional positioning pair can be employed in the form of longitudinal slot extending in the direction parallel to the direction of fastener's movement relative to the securing arm and, as a second element of the positioning pair, the retaining pin preferably located in the base member in such position that its sliding engagement in the securing slot is possible.

[0015] The third positioning solution that fully blocks the fastener's movement relative to the supporting arm is the assembly composed of retaining opening, formed in the supporting arm, and the retaining pin ensuring precise final positioning of the fastener relative to the supporting arm and, consequently, to the window sash.

[0016] The base part and the movable part can be executed in the form of separate elements, but for practical reasons and for convenience of assembly work it is advisable to connect them together with elastic link. From practical and economical point of view the most beneficial solution is that the base part, movable part and the connecting link are made in the form of a single member.

[0017] The proposed embodiment of the invention is depicted in Fig. 1 where the fastener is shown in open position, together with the hinge (1) of pivoting sash. Fig. 2 shows the fastener in closed position, seated on the supporting arm (2) being the part of the hinge (1). In this position the fastener is ready for engagement of fastening element, e.g. a screw. Figures 3a and 3b show, in two different perspective views, the fastener in open position allowing for sliding it onto the supporting arm (2). Fig. 4 shows the section of the open fastener along its symmetry plane, whereas the Fig.5 shows similar section of closed fastener in the position ready for screwing the fastening element in.

[0018] The fastener consists of two functional parts, i.e. the base part (3) and the movable part (4). The base part (3) has a through hole (31), whereas a movable part (4) has a blind hole (41). In closed position, both these holes are coaxial and form the socket for fastening element securing the side covering element of window sash. In mounted position of the fastener the axis of this socket should be substantially perpendicular to the (window sash plane. The socket depth, being the sum of the blind hole (31) and the through hole (41) lengths, is matched to required length of fastening element that fixes the side covering member of window sash.

[0019] For proper positioning of the base part (3) and movable part (4) relative to each other, the fastener is equipped with snap-on mechanism consisting of the recess (32) formed in the base part (3) and the tongue (42) formed in the movable part (4). As the second point of support for movable part (4) the positioning assembly is employed consisting of the longitudinal holder (33) formed in the base part (3) of the fastener and the tongue (41) which enters the holder (33) when the fastener is closed. With such supporting mechanism the movable part (4) can freely, but within a certain angular range, rotate around the axis intersecting the bottom of the holder (33) and perpendicular to the fastener's symmetry plane, until the fastener snaps on in the closed position. In this closed position the movable part (4) is blocked in the base part (3) by latching the tongue (43) in the recess (32) and entering the tongue (43) into the holder (33). Additionally, for restricting the movement range and ensuring proper positioning in the direction perpendicular to the symmetry plane, the movable part (4) of the fastener has retaining strips (44) shaped preferably parallel to each other and symmetrically with respect to the symmetry plane perpendicular to the apparent axis of rotation of movable part (4) relative to the base part (3). During closing of the fastener the retaining strips (44) enter the retaining sockets (34) having the shape and dimensions substantially corresponding to the shape and dimensions of retaining strips (44). In this solution the last degree of freedom of the movable part (4) relative to the base part (3) is blocked, therefore the fastener parts cannot move relative to each other during screwing the fastening element into the socket.

[0020] The precise and fixed connection of the fastener to the supporting arm (2) is ensured by three mutually co-operating mechanisms described below.

[0021] Thanks to the suitably shaped walls of the base part and the movable part, the fastener in its closed position defines a through channel (5) extending in the direction parallel to the axis of mutual rotation of the fastener parts during closing and perpendicular to the axis of blind hole (41). The dimensions and cross-sectional shape of channel (5) reflect the dimensions and rectangular cross-sectional shape of the supporting arm (2) to which the fastener is fixed. The channel (5) has three fixed walls formed in the base part (3), i.e. the base wall (51), the bottom wall (52), and top wall (53). The bottom wall (52) and top wall (53) are located symmetrically and perpendicularly to the base wall (51). In the presented exemplary embodiment of the invention, the closing wall (54) is partially, in the area perpendicularly adjacent to the bottom wall (52) and the upper wall (53), formed in the base part (3).

[0022] In such arrangement upon sliding the fastener onto supporting arm (2) the system with one degree of freedom is created, i.e. the movement along the supporting arm (2), regardless the position of movable part (4). In closed position of the fastener the closing wall (54) complements the periphery of the channel (5), ensuring better stiffness of the fastener and therefore better resistance against deformation. The channel (5) does not intersect with the socket for fastening elements.

[0023] To enhance precision of assembly and to obtain more stiff connection of the fastener with supporting arm (2), the longitudinally extending slot (21) is cut out in the supporting arm in the direction parallel to the direction of fastener's movement relative to the supporting arm (2).

[0024] The fastener is positioned relative to the base member (3) by the pin (34) formed on the base wall (51) and slidably engaging into the slot (21). The length of the slot (21) defines the extreme position of the fastener on the supporting arm (2). In this position it is possible to employ a third positioning set that ensures full blocking of fastener's movement relative to the supporting arm. This set is composed of the retaining opening (22) made in the supporting arm (2) and the retaining pin (35). During closing of the fastener, the retaining pin (35) gets in the retaining opening (22), thus ensuring the precise final positioning of the fastener relative to the supporting arm and, in consequence, to the window sash.

[0025] The base part (3) and the movable part (4) are connected together by flexible link (6) that allows for easy tilting of one element relative to the other in the fastener symmetry plane. All three elements being the parts of the fastener form a solid part which can be easily produced by using injection moulding technique; this is a feature important for keeping the production costs low.

Claims

1. A hinge for a roof window with pivoting or double action sash, comprising

- a supporting arm (2) preferably having a rectangular cross-sectional shape and

- a fastener for connecting an external member covering the sash of the roof window with a side member of the sash,

- wherein the supporting arm (2) is arranged for accepting the fastener during assembly in a roof window, characterized in that the fastener comprises a base part (3) and a movable part (4), which are connected together during assembly and where the base part (3) comprises a through hole (31) and the movable part (4) comprises a blind hole (41), wherein both holes in the fastener closed position are coaxial and define the socket for elements used for fastening the covering member, the base part (3) and the movable part (4) are arranged to be positioned on the supporting arm (2) of the hinge (1) where the positioning on the supporting arm (2) is realised by snap-on mechanism, which comprises a recess (32) formed in the base part (3) and a tongue (42) formed in the movable part (4) wherein the second fulcrum for the movable part being closed is created by the positioning assembly consisting of a longitudinal holder (33) formed in the base part (3) and a second tongue (43) formed in the movable part (4) which enters the holder (33) when the fastener is in the closed position and wherein precise final positioning of the fastener relative to the supporting arm (2) is realised by a retaining opening (22) on the supporting arm (2) and a retaining pin (35) on the fastener.

2. The hinge according to claim 1, characterized in that the base part (3) and the movable part (4) are connected together by flexible link (6).

3. The hinge according to claim 2, characterized in that the fastener is executed in the form of a monolithic member consisting of the base part (3), the movable part (4) and the flexible link (6) connecting both these parts together.

4. The hinge according to claim 1, characterized in that the movable part (4) has retaining strips (44) preferably parallel to each other and both perpendicular to the apparent axis of rotation of the movable part (4) in relation to the base part (2).

5. The hinge according to claim 4, characterized in that the base part (3) has symmetrically arranged retaining sockets (34), wherein the shape and dimensions of the retaining sockets reflect the shape and dimensions of retaining strips and the retaining sockets (34) block the movement of the movable part (4) relative to the base part (3) at the time when the fastening element is screwed in the socket defined by the through hole (31) and the blind hole (41).

6. The hinge according to claim 1 characterized in that in the closed position of the fastener the base wall (51), the bottom wall (52), and the top wall (53) of the base part (3), together with the closing wall (54) of the movable part (4), define the through channel (5) having the cross-sectional shape and dimensions mating with cross-sectional shape and dimensions of the supporting arm (2) which enters the channel (5), and the channel (5) does not intersect with the socket defined by the through hole (31) and the blind hole (41) and provided for the elements used for fastening the covering member.

7. The hinge according to claim 1, characterized in that the supporting arm (2) has the longitudinal slot (21) extending in the direction same as the direction of the through channel (5), and the fastener is equipped with the pin (51) located in such position that it can go into the slot (21).

Ansprüche

1. Scharniere eines schwenkbaren oder schwenk-/kippbaren Dachfensters mit:

- Absetzarm (2) mit einem vorzugsweise rechteckigen Profil und

- Verbindungsstück zum Verbinden des äußeren Abdeckelements des Dachfensterflügels mit dem Flügelseitenelement,

- wobei das Verbindungsstück am Absetzarm (2) beim Einbau des Dachfensters montiert wird,
dadurch gekennzeichnet, dass das Verbindungsstück ein Basisteil (3) und ein bewegliches Teil (4) aufweist, die bei der Montage zum Miteinanderverbinden vorgesehen sind, wobei das Basisteil (3) eine Durchgangsöffnung (31) und das bewegliche Teil (4) eine Sacklochöffnung (41) aufweisen, die in der geschlossenen Position des Verbindungsstücks koaxial stehen und ein Zapfenloch für Verbindungsmittel bilden, welche das Abdeckelement befestigen, wobei der Absetzarm (3) und das bewegliche Teil (4) am Absetzarm (2) des Scharniers positioniert sind und die Positionierung des Absetzarms (2) mittels einer Schnappverbindung, die aus einem Zapfenloch (32) im Basisteil (3) und einem Spund (42) im beweglichen Teil (4) besteht, durchgeführt wird, wobei den zweiten Absetzpunkt für das verschließbare bewegliche Teil (4) eine Positioniereinheit bildet, die aus einem Längsmontagegriff (33) im Basisteil (3) des Verbindungsstücks sowie einem zweiten Spund (43) im beweglichen Teil (4) besteht, der mit dem Montagegriff (33) zusammenwirkt, wenn sich das Verbindungsstück in geschlossener Position befindet, wobei der Absetzarm (2) eine Festsetzöffnung (22) und das Verbindungsstück einen Festsetzstift (35) aufweist, der eine genaue endgültige Positionierung des Verbindungsstücks gegenüber dem Absetzarm (2) sicherstellt.

2. Verbindungsstück nach Anspruch 1, dadurch gekennzeichnet, dass das Basisteil (3) und das bewegliche Teil (4) durch ein elastisches Zugband (6) verbunden sind.

3. Verbindungsstück nach Anspruch 2, dadurch gekennzeichnet, dass das Verbindungsstück ein monolithisches Element darstellt, das aus einem Basisteil (3), einem beweglichen Teil (4) und einem elastischen Zugband (6), das beiden Teile miteinander verbindet, besteht.

4. Verbindungsstück nach Anspruch 1, dadurch gekennzeichnet, dass das bewegliche Teil (4) Festsetzleisten (44) aufweist, die vorzugsweise parallel zueinander und symmetrisch in Bezug auf die Ebene, welche senkrecht zur scheinbaren Drehachse des in Bezug auf das Basisteil (2) beweglichen Teils (4) ist, geformt sind.

5. Verbindungsstück nach Anspruch 4, dadurch gekennzeichnet, dass das Basisteil (3) symmetrisch angeordnete Festsetzzapfenlöcher (34) mit einer Form und Abmessungen aufweist, die die Form und Abmessungen der Festsetzleisten wiedergeben, wobei sichergestellt ist, dass beim Einschrauben des Befestigungsmittels in das Zapfenloch, das durch die Durchgangsöffnung (31) und die Sacklochöffnung (41) gebildet wird, sich das bewegliche Teil (4) in Bezug auf das Basisteil (3) nicht drehen kann.

6. Verbindungsstück nach Anspruch 1, dadurch gekennzeichnet, dass die Basiswand (51), die untere Wand (52), die obere Wand (53) im Basisteil (3) sowie die Verschlusswand (54) im beweglichen Teil (4) in der geschlossenen Position des Verbindungsstücks einen Durchgangsabsetzkanal (5) mit einer Querschnittsform und Abmessungen bilden, die die Form und Abmessungen des Querschnitts des Absetzarms (2) widerspiegeln, mit dem der Absetzkanal zusammenwirkt, wobei der Absetzkanal das durch die Durchgangsöffnung (31) und die Sacklochöffnung (41) gebildete Zapfenloch für Befestigungsmittel des Abdeckelements nicht schneidet.

7. Verbindungsstück nach Anspruch 1, dadurch gekennzeichnet, dass der Absetzarm (2) in Richtung des Durchgangsabsetzkanals (5) einen Längsabsetzspalt (21) und das Verbindungsstück einen mit dem Absetzspalt (21) zusammenwirkenden Absetzstift (51) aufweisen.

Revendications

1. Une charnière de l'ouvrant basculant ou oscillo-basculant de la fenêtre de toit munie:

- d'un bras d'encastrement (2), de préférence à profil rectangulaire et

- d'un raccord pour la connexion de l'élément de couverture extérieur de l'ouvrant de la fenêtre de toit avec l'élément latéral de l'ouvrant,

- où le raccord est fixé au bras d'encastrement (2) lors de l'installation de la fenêtre de toit,
caractérisé en ce que le raccord comporte une partie de base (3) et une partie mobile (4), destinées à être reliées l'une à l'autre lors de l'installation et que la partie de base (3) comporte un trou traversant (31) et la partie mobile (4) comporte un trou borgne (41) qui, dans la position repliée du raccord, sont coaxiaux, formant une assise pour les attaches de fixation de l'élément de couverture, sachant que le bras d'encastrement (3) et la partie mobile (4) sont positionnés sur le bras d'encastrement (2) de la charnière, et le positionnement du bras d'encastrement (2) s'effectue au moyen d'un assemblage par encliquetage composé de l'assise (32) dans la partie de base (3) et d'un tenon (42) dans la partie mobile (4), le deuxième point d'appui de la partie mobile verrouillable (4) étant l'ensemble de positionnement, qui se compose d'un support d'encastrement allongé (33) formé dans la partie de base (3) du raccord et d'un second tenon (43) formé dans la partie mobile (4), qui coopère avec le support d'encastrement (33) lorsque le raccord est en position fermée, et le bras d'encastrement (2) comporte un trou de fixation (22), et le raccord comporte une broche de fixation (35), assurant un positionnement final précis du raccord par rapport au bras d'encastrement (2).

2. Le raccord mentionné dans la revendication 1, caractérisé en ce que la partie de base (3) et la partie mobile (4) sont reliées par un brin flexible (6).

3. Le raccord mentionné dans la revendication 2 caractérisé en ce que le raccord est un élément monolithique composé d'une partie de base (3), d'une partie mobile (4) et d'un brin flexible de liaison (6).

4. Le raccord mentionné dans la revendication 1 caractérisé en ce que la partie mobile (4) comporte des bandes de positionnement (44) qui sont de préférence parallèles entre elles et symétriques par rapport à un plan perpendiculaire à l'axe de rotation apparent de la partie mobile (4) par rapport à la partie de base (2).

5. Le raccord mentionné dans la revendication 4, caractérisé en ce que la partie de base (3) est munie d'assises de fixation (34) disposées symétriquement, ayant une forme et des dimensions reflétant la forme et les dimensions des bandes de positionnement, permettant de bloquer la possibilité de tourner la partie mobile (4) par rapport à la partie de base (3) lors du vissage de la fixation dans l'assise formée par le trou traversant (31) et le trou borgne (41).

6. Le raccord mentionné dans la revendication 1, caractérisé en ce que la paroi de base (51), la paroi inférieure (52), la paroi supérieure (53) dans la partie de base (3) et la paroi de fermeture (54) dans la partie mobile (4), en position assemblée du raccord, forment un canal d'encastrement (5), ayant dans sa section transversale la forme et les dimensions reflétant la forme et les dimensions de la section transversale du bras d'encastrement (2) avec laquelle le canal d'encastrement coopère, mais le canal d'encastrement ne traverse pas l'assise destinée aux moyens de fixation de l'élément de couverture, formée par un trou traversant (31) et un trou borgne (41).

7. Le raccord mentionné dans la revendication 1, caractérisé en ce que le bras d'encastrement (2) présente une fente longitudinale d'encastrement (21) dont la direction est conforme à la direction du canal traversant d'encastrement (5) et que le raccord est équipé d'une broche d'encastrement (51), placée dans une position qui assure sa coopération avec la fente d'encastrement (21).

Drawing