GB2186020A

GB2186020A - Turning window arrangements

Info

Publication number: GB2186020A
Application number: GB08701622A
Authority: GB
Inventors: Bjorn Anderssen
Original assignee: Kva Spil Ltd
Current assignee: Kva Spil Ltd
Priority date: 1986-01-30
Filing date: 1987-01-26
Publication date: 1987-08-05
Also published as: SE464823B; GB8701622D0; SE8700338L; DK48387D0; NO157671C; NO860325L; NO157671B; GB2186020B; SE8700338D0; DK48387A

Abstract

A vertical frame portion (10d) is common to two turnable turning window frames (11, 12) which are linked separated to the frame portion (10d) via a set of pivot arms (15, 16, 17) and an associated fastening mounting (18). The frame portion (10d) is also provided with longitudinal grooves which receive their respective support rails (14) which are designed to receive their respective pivot pins at one side edge of the respective casement (11, 12). By means of a bolt-like anchoring means (22) which is received in an internal cavity in the frame portion (10d) there is formed a simple and solid fastening for the two fastening mountings (18), the fastening mountings being connected mutually and to the anchoring means (22) by means of a common transverse fastening means (26). <IMAGE>

Description

SPECIFICATION Turning window arrangements This invention relatesto a turning windowarrange- ment comprising a casement pivotably mounted at each of its opposite vertical side edges in guides in vertical portions of a frame of wood or similar material and supported via pivot arms and a fastening mounting for the latter secured to a respective vertical frame portion.

In turning windowsforthe afore-mentionedtype, for example, as disclosed in Norwegian Open-To Inspection Specification 122,614, and especially in turning windows where the window casement can beswungaround approximately 180 abouta horizontal axis at one horizontal peripheral edge ofthe casement, the window frame is exposed during use to significant forces in the outwardly pivoted state of the casement. There arise particulartension forces via the fastening mounting, to which pivot arms of the casement are fastened, but tension forces also occur via pivot pins of the casement with which the casement is slidably mounted in vertical guides in the vertical frame portion.It is customary to employ at each side edge of the casement an uppertensionabsorbing pivot arm and a lowertension-absorbing arm which can support the casement in arbitraryout- wardly pivoted positions. Especially in strong winds and with heavy casements, the tension forces which are transferred to vertical frame portions of the framecan become considerable. In this connection, it is necessary to have large cross-sectional dimensionsforthevertical frame portions. Atthe same time, itis current to arrange the guide grooveforthe pivot pin ofthe casement in a cavity in the vertical frame portion just by the fastening mounting.This cavitywill also involve a demand for increased cross- section of the vertical frame portion.

With the present invention the aim is a solution with which the cross-section of the vertical frame portion can be reduced sothatthis can be given a slenderer and more aesthetically attractive design, at the same time as tearing out is prevented ofthefast- ening mounting and the guide of the pivot pin as a result of suddenly arising loadingsfrom a casement in an outwardly pivoted condition.

Accordingly, the present invention resides in a turning window arrangement which comprises a casement pivota bly mounted at each of its opposite vertical side edges in guides disposed in vertical por tionsofawindowframe made of wood orlikemat- erial and also supported via pivot arm means and a fastening mounting thereforwhich is secured to a respective vertical frame portion via transverse fastening means fastened to an anchoring means received in a self-anchoring manner in a cavity formed centrally in said frame portion.

A particular problem arises in those instances wheretwo turning window casements are arranged by the side of each other in one and the sameframe.

In such cases, it is customary to employ substantially double cross-sectional areas for the intermediate, common vertical frame portion. With the present invention, the aim is to reduce the cross-sectional area for such intermediate, common vertical frame portions sothatthere can beobtainedaslendererand aesthetically more attractive form forthe said intermediate frame portion.

Where two casements are employed,the anchoring means of a middle vertical frame portion is pre ferablycommontoonefastening mounting of each of the casements and the fastening means is common to both fastening mountings.

In orderthatthe invention can be more clearly understood, convenient embodiments thereof will now be described, by way of example, with reference to the accompanying drawings in which: Figure lisa perspectiveviewofawindowframe which iscommontotwoturnablewindowcas- ements, Figure2 is a vertical section showing one casement in an outwardly pivoted position with respect to the frame, Figure3 is a horizontal section of a vertical frame portion which is common tothetwowindowcas- ements, and Figure4is a scrap perspective representation of different members joined together to form a rigid anchoring arrangement for pivot arms ofthe casements.

Referring to Figure 1, a window frame loins shown common to two separate window casements 11 and 12which areturnable approximately 1800.

While the window frame 10is constructed totally of wood, it can also be made of other suitable materials, such as laminates of wood and a synthetic plastics material. The frame is provided with an upper, horizontal frame portion 10a and a lower, hor izontalframeportion 1 Ob and three vertical frame portions, that is to say a first outer, vertical frame portion 10c and a second outer, vertical frame por- tion 10e togetherwith a middle vertical frame por- tion 1 Od.

As shown in Figure 2, the window casement 11(12) is provided at its one (upper) horizontal edge with two mutually oppositely directed pivot pins 13 (one on each respective vertical side of the casement) which are slidably mounted, and pivotable around, in their respective support rails 14 with an associated vertical guideforeach pivot pin. Furthermore,the casement is linked to the frame (correspondingly on both sides of the frame) by means of a set of three pivot arms 15, 16,17. The pivot arms 15 and 16 have the one end pivotably mounted, via mutually separatelydisposed pivot pins 15a and 16a, on a common fastening mounting 18. The pivotarms 15 and 16 have the other end pivotally mounted, via cor responding mutually separately disposed pivot pins 15b and 16b, at one end of the third pivot arm 17 while the latter is pivotably mounted, via a pivot pin 19, in the casement 11 at its horizontal central axis.

By swinging outwardlyfrom a closed position, the casement can be turned about 180" about a horizontal axisthroughtwo pivot pins 19 of the casement whilethe latter is led, via the pivot pins 13, along the associated vertical frame portions guided in the support rails 14.

As is shown in Figure 3, the fastening mountings 18 are received each in their respective milled cavity 20 in the frame portion while, correspondingly, there isfomred a longitudinal groove 21 in the frame portion for reception of the rail 14which extends the whole ofthe heightdimension oftheframe.

Whilethis embodiment is equally applicable to all three frame portions 10c, Od and 10e, it haste greatest significance for the middle frame portion 1 Od as will be appreciated from the subsequent description.

in Figure 3, there is shown an anchoring means 22 which is received in a cavity, designed for this purpose, internally in the frame portion 1 Od. The anchoring means consists of a bolt with a bolt head 22a, a first stem portion 22b and second stem portion 22c, together with a laterallyoffsetfastening portion 22d (see also Figure 4). Between the stem portions 22b and 22c,there isformed an annulargroove in which there is a packing ring or locking ring 23. There is indicated, by broken lines 24, a through fastening holeintheoffsetfastening portion 22d.

Each fastening mounting is secured to the base (the frame portion) with its two fastening means. The one fastening means can, for example, consist of a normal fastening screw 25 with which the mounting is separately secured to the base, while the second fastening means is illustrated in the form of afastening bolt or fastening rivet 26, with which the fastening mounting - together with an equivalentfastening mounting on the opposite side of the frame portion- is securedtothe anchoring means 22 which is common to the said two fastening mountings. With such a common connection between the fastening mountings, in combination with a common fastening to the anchoring means 22,there is obtained an especially effective and stable fastening for each one ofthe fastening mountings.By connecting the fastening mountings with the common anchoring means 22, an especially narrow frame portion can be employed. This means thatthe fastening means 26 can be designed with a relatively short length so thatthe fastening mountings can, thereby, be arranged separately at quite a short distance from the anchoring means and with a relatively short mutual distance, something which ensures an effect ivetransferofforce between the members.

From Figure 3, it is evident, moreover, that the groovesforthesupportrails 14 can be allowed to extend relatively deeply inwardly into the frame portion 1 Od from mutually opposite sides. By means of the anchoring means 22 (which passesthroughthe narrow residual frame portion between said grooves) and its bolt head 22a at the one end and the fastening means 26 with associated fastening means at the opposite end, there is achieved an effective reinforcement ofthe frame portion 1 Od just in the region where the frame portion is exposed to the greatestforces, that is to say in the region where the fastening mounting 18 is attacked bytensionforces via the pivot arm 15.Consequently, with one and the same, relatively simple anchoring means 22, the two mountings can be anchored in an effective manner relative to each otherand relative to the anchoring means, and, in addition, an effective anchoring ob tained forthe support rails 14atthe central portion of the rail.

In the embodiment of Figure 3, there is shown a frame portion 1 Od which on the backside is provided with a longitudinal, relatively shallow groove 27. Bolt head 22a ofthe anchoring means 22 is received in a relatively deep cavity 28 in the groove 27. The cavity 28 has a cross-section corresponding to the crosssection of the bolt head and the bolt head is shown in the bottom of the cavity 28. Axially just outside the bolt head, the cavity 28 can be filled up with a cover, for example, in the form of a wooden plug orwooden disc 29. In this way, the anchoring means can be received completely shielded in the frame portion.

Substantially the same mode of anchoring can be employed in the frame portions 10c and 1 Oe but with the difference that the one mounting according to Figure 3 is replaced with a stop disc and/or a bolt head in the associated fastening means 26. In this way, the frame portion can be effectively braced via the anchoring means 22, the fastening means 26 and associated fastening mounting together with the opposite stop disc and/or bolt head.

Claims

1. Aturningwindowarrangementwhichcom- prises a casement pivotably mounted at each of its opposite vertical side edges in guides disposed in vertical portions of a windowframe made of wood or like material and also supported via pivotarm means and afastening mounting thereforwhich is secured to a respective vertical frame portion via transverse fastening means fastened to an anchoring means received in a self-anchoring manner in a cavityformed centrally in said frame portion.

2. An arrangement according to claim 1,wherein the anchoring means received in a middle vertical frame portion is common to one fastening mounting of each of two adjacent casements a nd the transverse fastening means is common to both of said fastening mountings.

3. An arrangementaccordingto claim 1 or2, wherein the anchoring means consists of a bolt having a stem portion, a bolt head at the one end and a fastening portion at the opposite end with a transverse fastening hole for passage of the transverse fastening means.

4. An arrangement according to claim 3, wherein the fastening portion at the opposite end of the stem portion is laterally offset.

5. An arrangement according to any of claims 1 to 4, wherein the guides disposed in vertical portions ofthe windowframe are in theform of support rails.

6. Turning window arrangements constructed, arranged and adapted for use substantially as described herein with particular reference to the accompanying drawings.