DEVICE FOR CROSS BAR CONSTRUCTIONS

Abstract: Cross bar type constructions, particularly cross bar type windows. The inner edges of the window frame (1) and the cross bars (2, 3) are shaped as V-type profiles and the ends of the cross bars (2, 3) are shaped as oppositely corresponding V-type profiles. All cross bars (2, 3), each one manufactured from one solid piece of material, are installed inside the finished prefabricated window frame (1), by rotating the cross bars (2, 3) in the plane of the window panes (4) in such a manner that the oppositely corresponding V-type profiles will be locked together. After the window panes (4) are placed in their respective rabbet (6) frames, the panes (4) are sealed around the edges, for example by using a semiliquid elastic hardening compound (5). At the inner edge of the rabbet (6) for the panes (4), a somewhat deeper groove is formed, which after the sealing compound (5) is applied, will assist in locking the window panes (4) in all directions and consequently at the same time lock the entire window construction in the final shape.

Description: Device for cross bar constructions. The present invention relates to a device for cross bar constructions, particularly cross bar type windows including two or more window panes with single or multiple glazing or other sheet members. The general objective is to simplify the production process, to make the process more efficient and to increase the quality and the strength of the construction. • o Wooden cross bar type windows of a fixed or turnable construction are known to have been used in very old buildings. Because of the difficulty of producing large window panes (glass) , the window constructions were usually divided into many small openings. Traditions and esthetical 5 motives, are the reasons for the continued .use of cross bar windows up through the years and the present common use in many countries. It is interesting to find that the technical construction known in our time, is the same as used in the very old buildings. 0 The existing cross bar windows consist of a window frame which combined with vertical, horizontal or diagonal cross bars, forms the relative small openings where the. window panes are installed by the use of wire nails and putty on 5 the outside around the edges. The existing construction methodes require the joints .between cross bars and between cross bars and parts of the window frame, to be manufactured and fitted with a high 0 degree of precision. This is achived by performing a number of time consuming production operations. First, and for each joint, a groove has to be milled crosswise and half way through each cross bar. Next, each one of the beveled surfaces of the profile, has to be cut to form a picture 5 frame type inside corner. The same beveled parts must also be cut to proper angles at the joint between cross bars and the rails of the window frame. It is further required to shaoe a tenon in each end of OMPI the cross bars andmortising a corresponding hole in the rails of the window frame. Afterwards, the assembling and installation of all the parts,is time consuming and not an efficient production oriented operation. When all the parts are fitted togther, all joints in the entire construction must be glued togther in one operation. The main disadvantogeous related to the exsiting cross bar type constructions, are the many required time consuming - production process and finally an assembling operation not suited for high volume line production. The structural strength is reduced in each joint where the cross bars are cut half way through. In addition, the presently used putty will in time dry out and fall out due to the present form of the rabbet. The present invention solves the problems by introducing a new type construction which makes it possible to utilize a new and more efficient production system. This will reduce the number of production processes, simplify assembling increase strenght and introduce a sealing methode which will function almost indefinately. This is achived by shaping the inside edges of the window frame rails and the cross bars into the form of an outward. U- or V- like profile, while the ends of the cross bar are shaped as an innward oppositely corresponding U- or V- like profile. The window frame may be assembeled and finally glued before installation of the cross bars, done by placing the innward beveled ends of the cross bars against the outward beveled inner edges of the window frame rails and cross bars, and then rotate the cross bars into the desired position. Next, the window panes are placed in the rabbet for each pane and then sealed from the outside around the edges, using a suitable sealant compound causing the entire window construction to be locked permanently in the final position. The production processes which are elimentated, are milling OMPI Λ. WIPO .< cross grooves in the cross bars, shaping the ends of the beveled surfaces at each joint and mortising holes in the inner edges of the window rails. The structural strength is improved because one of the cross bars at each joint, is solid without reduced cross section due to milling operations. The invention is further disclosed in the clains, in the drawings and the descriptions of these. OMPI Λ, WIPO _ * Description of figures. Fig 1 showes an example of a cross bar type window where the construction is carried out in accordance with the present invention. The invention gives the opportunity to vary the numbers of vertical- and horizontal cross bars 2,3. The cros bars 2,3 may also be installed in. diagonal position relative to the rails of the window frame 1. It is required that the glass openings •have a rectangular shape. In fig..1 the cross bar 2 extends vertically between the upper and lower rail of the window frame 1. Four horizontal- cross bars 3 which are identical, connect the vertical cross bars 2 with the vertical rails of the frame 1. This version contains six glass openings. ■ " "' Fig. 2 shows a typical cross bar cross joint and how the cros bars 2,3 are connected to the rails of frame 1. The cross bars are shaped with, the same profile on each of the inner edges towards the six glass openings. The inner edges of the rails of the frame 1 also turning towards the glass openings, are likewise shaped with the same profile in an area corresponding to the thickness of the cross bars 2 In the center portion of the profile it is shaped a groove or rabbet 6 for installation of window pane 4. The surface 6a " of the rabbet acts as a mounting surface for the pane 4, while the other surface 6b is shaped to form a free area for inserting the window pane 4. The profile is further shaped in such a manner that on each side of the rabbet 6, the surfaces are sloping and consequently forms the cross bar 2,3 as a hexagon where the opposite inner edges are indentical. In the end surfaces of the cross bars 2,3 90 to the lonqitudional direction and parallel with the plane of the window pane,an oppositely corresponding profile is produced as described above. OMPI /,, IPO - This results in a mortise and tenon type joint in the cross between cross bars 2,3 and the window frame 1. The tongue 7 fits into the mentioned rabbet 6.Further,the end of the cross bars 2,3, is shaped as an inwardly formed V-type profile. The projecting ends 8a and 8b is shaped with the inward surfaces in the same angle as the opposite corresponding surfaces of the cross bars 2,3 and frame 1. Cross section A-A shows the described profiles and how they are joined together. The lower cross section A-A shows the same, but with the window panes 4 installed. Z • ' I t m Fig. 2 and 3, and the description of these, makes it clear that the vertical cross bar 2 may be slided sidewise and that the horizontal cross bars 3 may be slided up or down along cross bar 2 and the side rails of the frame 1. The movements is possible in the plane of the window panes 4 and this is illustrated by the arrow A-A. Due to the above described mortise and tenon type joints, the cross bars 2,3 are locked sidewise and can not be moved in a direction perpendicular to the plane of the window panes 4. In fig. 3, this direction is indicated by the arrow B-B. Fig. 4 shows the sucession in building up a cross bar type window according, to...the. present inyention..' Fig. 4A shows a window frame 1 already finally assembeled and glued. The vertical cross bar 2 is placed in a slanted position relative to and inside the rails of the frame 1. The inwardly profiled ends of the cross bar 2 is pushed against the oppositely corresponding inwardly profiled inside edges of the rails of the frame 1. The elasticity of the materials and the construction itself,makes it possible to rotate the cross bar 2 into a position parallel to the vertical rails of frame 1. Afterwards the cross bar 2 may be moved sidewi e (see fig 4b). Fig 4C shows that the horizontal cross bars 3 are placed in OMPI a slanted position between the cross bar 2 and the side rail of frame 1. The profiled ends of the cross bars 3 are pushed into the oppositely corresponding profiled inner edges of cross bar 2 and the side rails of the frame 1 and then rotated into horizontal position. The cross bars 3 are adjusted vertically until the desired glass openings are form The window panes 4 in desired thickness, width and heigth, ar then positioned into the glass openings against the surface 6A in the rabbet. Installed window panes 4 are shown in fig. 1, 2 and 3. From the outside and in the area between the window panes 4 and th surfaces in the rabbet, sealant compond is applied which will attain the stable and desired hardness and structural strengt Silicone type saelant compounds may be used. Fig. 1, cross section A-A and other figures, show an importan feature related to the present invention, The hardened struct sealant compound 5 is transformed into an angled or substanti Z-type shape. In the corner of the rabbet 6 the grove 6c is deeper (larger in area) than the outer surface 6b in the fram for the window pane 4. This causes the hardned structural sealant compond 5 together with the window panes 4, to be loc firmly in all directions due to the opposite reacting surface of the rabbet 6. After the sealant is hardened, the complete combined window construction is fixed in its final shape and none of the cros bars 2,3 can be moved. Gluing or othermeans for fastening the cross bars 2,3 are not required, but may be done if desired for some reason. The present invention may be utelized for making decorative cross bar type window frames without glass panes. In this cas the cross bars 2,3 should possibly be fastened in the joints avoid dislocations. OMPI Λ. W

Claims: Patent claims. 1. A device for cross bar constructions, particularly cross bar type windows including two or more window panes, where the inner edges of the window frame and cross bars, facing the window panes, are shaped as outward V-type profile and where the ends of the cross bars are shaped as an oppositely corresponding V-type profile and where the window frame first separatly may be permanently assembled and glued c h a r a c t e r i z e d b y that all cross bars (2,3) , each manufactured in one solid piece of material, thereafter with a rotating movement are installed within the window frame (1) by the resulting interlocking of the oppositely correspondin V-type profiles, and that the rabbeted pane frame profile (6) is shaped with a groove (6c) which is deeper than:- the outsiede edges (6b) or part of this, and that an elastic or semiliquid hardening sealing compound, is applied in the area between the window pane (4), the surface (6a), the groove (6c), the outside edge (6b) and a surface from the edge (6b) slanting towards the outer surface of the window pane (4) , and thereby locks the window pane (4) in all directions and thereby also locks the entire combined window construction in the final and permanent position. 2. Device as described in claim 1, c h a r a c t e r i z e d b y that the shape of the rabbet frame (6) for the window panes (4) and sealing with sealing compound, is performed according to in its way known methodes.

Inventors: LIAN K
Applicants: LIAN K
Application year: 1980
Main classification: E06B3
IPC codes: E06B3