DEVICE FOR BUILDING CONSTRUCTIONS AND METHOD FOR THE REALIZATION OF THE DEVICE

Abstract: A window or door construction achieved by one material profile (10) and comprising frames, casement frames and/or casements, whereby a frame for the construction consists of frame pieces (1a) from a material profile (10), which displays a first shank and a second shank and also a first and second groove (7 and 8 respectively). The material profile (10) is also used for a casement frame or an inner or outer casement in the same construction, whereby the material profile for use for casement frames or connected inner and outer casements is divided in a cut (9) in a second groove (8) displayed by the material profile to form casement frame pieces or material pieces for an inner and outer casement. The said first shank in the material profile (10) forms in a casement frame or a casement a rebate to the frame, while the said second shank, which in the material profile (10) is arranged diametrically to the said first shank, is arranged in a casement frame or a casement to form a first supporting strip for in the casement frame or casement arranged parts, such as a window pane.

Description: DEVICE FOR BUILDING CONSTRUCTIONS AND METHOD FOR THE REALIZATION OF THE DEVICE Technical field: The present invention relates to a device for building constructions. Such building constructions can be composed of windows, doors or other opening building components which comprise frames, casement frames and/ or casements for connection to frames or casement frames or to openings in buildings or building elements. In this respect a frame for a build- ing construction comprises frame pieces from a material profile which exhibits at least a first shank and a first groove. Background: There is a need to reduce the number of material profiles for building constructions and also to reduce the number of work operations for the achievement of these building constructions, thus ensuring a more ratio¬ naland subsequently less expensive production. A building construction where the said requirement exists is constituted by windows, doors and similar building elements, irrespective of whether these are opening or not. Technical problems: During the making of windows, for example, timber of different qualities is used today. Thus, better quality timber is used for casements in windows, whilst inferior quality timber is used for frames. The rip- sawing of timber either utilizes different rip saws or an appropriate adjustment of the rip saw in view of one dimension for the frame, another for the inner casement and a third for the outer casement. The same inconvenience arises during the planing of the timber profiles. The different qualities of timber and dimensions of the material pieces included in a window necessitates large stocks. It should also be poin¬ ted out that different profiles are used for the head, sill and jamb pieces of the frame. Traditionally, the inner and outer casements are also constructed of three different profiles, that is, the construction of a traditional window requires nine different profiles. The production process for normal types of window commonly available is thus unnecessa¬ rily complicated and implies considerable handling and long process and delivery times, resulting from at least twenty-three different and necessary operations for the making of a window, that is, timber to stock in at least two qualities and subsequently I or II sortings for casement timber and IV sortings for frame timber, the input of timber to rip-sawing, rip-sawing of casement timber in two sizes, board stacking of casement timber, board stacking of frames, drying of frames and case- ent timber, cutting of frame timber, cutting of casement timber for inner casements, cutting of casement timber for outer casements, planing of inner casements in at least two profiles, planing of outer casements in three profiles, planing of frames in three profiles, transfer of said material pieces to mortise machine for sliding inner casement, sliding outer casements, mortising of inner casements, mortising of outer case¬ ments, making of end-profiles for the frame timber and adjustment of frame timber in the mortise machine, recessing for fittings in frames and casement timber, the putting together of frames and casements, paint¬ ing, glazing and mounting of furring strips, final assembly and inspect- ion. The solution: The production process for a similar window with the device as per the invention only includes thirteen operations, that is, timber to stock, whereby only one size of timber is stocked and only one quality and pre- ferably a timber of low quality such as pine O/S, board stacking for drying of this size of timber, drying, cutting and sorting of the cut timber for frames and casements, planing of only one timber profile, longitudinal adjustment, mitring, end recessing in moulding machine, recessing for fittings in frame and casement timber, the assembly of frames and casements, painting, possibly fillet mounting, glazing and possibly mounting of sealing strips, final assembly and inspection. A device as per the invention thus avoids a long series of production ope¬ rations and also enables simple handling, since only one size of timber and one timber quality is used to manufacture a basic profile and one timber quality is used to manufacture a basic profile and thus profiles for the entire window. Since an inexpensive timber can be used for the entire window, then, after cutting a possible sorting of the timber for selection to frames and casements may be made, which, however, takes place first during preparation of the wood. The simplified production process implies for instance that raw material stocks can be kept at a minimum, resulting in low storage and handling costs. Moreover, there is a technical advantage in that profile planing of the basic profile only requires one tool and one setting of the planing machine, in comparison with traditional manufacturing where nine different profiles are requi¬ red and subsequently nine different settings on the planing machine. This implies in turn that efficiency of the planing machine can be rai¬ sed from about 60 % to at least 90 %. Process time in machine manufact- uring is also considerably reduced with production entailing the use of a device as per the invention, where for example cutting only needs to be carried out for one timber profile, and the same for planing, where timber for frames may be planed first followed by timber for casements and this in one and the same tool without requiring resetting. Mounting of the window can then be begun directly, but if necessary, after a division of the planed timber profile with the aid of a saw cut for con¬ nected casements. Much time is gained in this manner in comparison with traditional production, where planing first involves inner casements in two or three profiles, followed by planing of outer casements in three profiles and finally planing of frames in three profiles with change of tools and resetting of the planing machine. The corresponding production process for production of a window as per the invention enables a time saving in the ratio of at least 2/3. Other advantages with production entailing a device as per the invention involve an intermediate stock of profiles reduced to a minimim and other machine tempos initiated with shorter time intervals from planing, and also subsequent surface treat¬ ment and mounting. This implies that the entire process time from raw material to a finished window is considerably reduced and concerns a saving in weeks of at least two to four weeks. In addition to production handling being reduced to a minimum, and the same for downtime for ma¬ chines, and that machine efficiency time increases and process time in production is reduced considerably with shorter delivery times, then, production entailing a device as per the invention as per the proposed method also implies a reduction of necessary operating capital which is restricted to the manufacturing. Moreover, it should be emphasized that in larger factory units for manufacturing of windows and the like a great deal of importance is attached to sorting of the timber for case¬ ment and frame timber, which type of sorting is not required when using the device and the method of production in accordance with the invention, where admittedly another type of sorting takes place but one which can be carried out in a simpler manner, when a classification of material is made on a finished planed profile. It should also be emphasized that different types of windows are made in a manufacturing unit, whereby one considerable advantage with the device as per the invention is that the specified profile can be used for all types of windows, that is, includ¬ ing simpler windows where the severe specifications for insulation are not appropriate, two-pane or three-pane windows, or windows intended for three-pane or four-pane insulated windows. An additional advantage with the use of a material profile as per the present invention is that case¬ ment and frame pieces can be connected at the corners by mitring or with the exclusion of the sill or the under piece of the frame, which cannot be mitred. This is possible since the profile pieces in the casements and frames are the same, whereby the configuration of the profile pieces corresponds to each other. Connection of frame and casement pieces with the aid of mitring can be carried out in very simple machines, which also contributes to simpler and cheaper production compared to the manu¬ facture of known windows. A device in accordance with the invention is thus characterized by the fact that the material profile for a frame in a building construction may also be used for a casement frame or inner and outer casement in the same building construction, whereby the material profile for use with connected casement frames or inner and outer casements is divided to form casement frame pieces or material pieces for an inner and outer casement. As was made apparent earlier another characteristic of the device in accordance with the invention is that one material profile with one and the same configuration may be used in a building construction. The invention also refers to a method for the achievement of a building construction, such as a window, a door or another opening or non-opening building component, which comprises frames, casement frames and/or case¬ ments for connection to frames or casement frames or to openings in buildings or building elements. The method is characterized by the fact that the material profile is produced, which is provided with at least a first shank and a first groove, whereby the material profile in the form of frame pieces or casement frame pieces is used as upper piece, vertica pieces and under piece in for example a window or a door, and in the form of casement frame pieces or casement pieces as upper piece, vertica pieces and under piece in for example a window or a door with single casement, and in the form of casement pieces as upper piece, vertical pieces and under piece in a window or a door with connected casements. Brief description of the drawings: " Additional characteristics of and advantages with the device in accord¬ ance with the invention and method of realizing.the device will be appa¬ rent by one embodiment in the descriptive text hereinafter, whereby simultaneous reference will be made to the accompanying schematic draw¬ ings, of which Fig. 1 shows an end view of a material profile according to the invention in accordance with one embodiment, Fig. 1 a shows the profile as per Fig. 1, Fig. 2 shows an end view of a part of the mate¬ rial profile as previously, Fig. 3 shows an end view of a part of the material profile as per Fig. 1 and Fig. 1 a, Fig. 4 shows an end view of a fillet profile, Fig. 5 shows an end view of a section profile as per Fig. 3 with fillet profile as per Fig. 4, Fig. 6 shows an end view of another fillet profile, Fig. 7 shows a horizontal cross-section through a connected three-pane window with fittings, Fig. 8 shows a vertical cross-section through the connected three-pane window as per Fig. 7, Fig. 9 shows an end view of a material profile according to the device in accordance with the invention as per a second embodiment, Fig. 9 a shows an end view of the material profile as per Fig. 9, Fig. 10 shows an end view of a part of the material profile as per Fig. 9 and Fig. 9 a, Fig. 11 shows an end view of another part of the material profile as per Fig. 9 and Fig. 9 a, Fig. 12 shows a horizontal cross- section through a single two-pane window with fittings, Fig. 13 shows a vertical cross-section through the single two-pane window as per Fig. 12, Fig. 14 shows a horizontal cross-section through a three-pane window with insulation window and fittings, Fig. 15 shows a vertical cross- section through the three-pane window with insulation window as per Fig. 14, and Fig. 16 shows an end view of a material profile in accord¬ ance with the invention as per a third embodiment. Best mode for carrying out the invention: With reference designation 10 and 20 in Fig. 1, l a, 9 and 9 a, a mate¬ rial profile of wood, wood fibre material or possibly plastic material is shown, and which comprises the only material profile, as a basic pro¬ file, for the realization of, for example, frames, casement frames or casements for a window, a door or another frame shaped building compo¬ nent. The material profile is intended to be used as a frame piece and/ or casement frame piece I, II in the said building constructions or frame and/or casement pieces I, II, whereby the material profile after division may form both outer and inner casement pieces 2, 12 and 3, 13 respectively. It is thus possible with a single material profile 10, 20, whenever applicable as a basic profile, to achieve the profiles which are necessary for the manufacture of a complete window or door, and thus irrespective of whether the window or door display connected casements, multi-pane windows, such as two, three or four-pane windows, or is to comprise insulation glazed windows or the like. To facilitate the description of the device in accordance with the in¬ vention the following embodiments shall describe the device as used with windows and for the purpose of simplicity corresponding parts in the device and the windows have been provided with the same reference desig- nation in the different design examples and embodiments. Thus the mate¬ rial profiles 10 and 20 display in the various diagrams a first groove 7, a second groove 8, a first shank 14 and a second shank 15. The material. profile 10 also displays a third groove 18 or the like for the attach¬ ment of a device, such as for example a profile strip 4, see Fig. 4, to the formation of a third- shank 16, see Fig. 5, while the material pro¬ file 20 displays a third shank 17. The material profiles 10 and 20 may wherever applicable be divided to achieve a second material profile 2, 12 and a third material profile 3, 13, which are herein intended to be able to form material pieces in outer or inner casements respectively, or vice versa, see Fig. 2, 3, 12 and 13. The division of the material pro¬ files 10, 20 may be carried out with a saw cut, which is shown with re¬ ference designation 9 in Fig. 1 a and Fig. 9 a. The cut may thus be effected in the said second groove 8, whereby edge recesses 28, 29 are achieved in the said second and third material profiles 2, 12 and 3, 13 respectively. The material profile 10 and thus wherever applicable the material profile 3 may be provided with a strip 4, which is designed or provided with an attachment device 19, for example in the form of a re¬ bate, see Fig. 4. The strip 4 may be glued to the material profile 10 or rather to the material piece 3, as shown in Fig. 5, or form a third shank 16 in one piece with the material profile 10. The strip 4 may also display another form and be wider for a larger supplement, for example, see reference designation 5 in Fig. 4. The strip so shown is basically similar to the third shank 17 in the material profile 20, which accord- ing to the embodiments shown in Fig. 9, 9 a and 11 is formed in one pie ce with the material profile 20 and the material piece 13 respectively. Fig. 6 shows an axa ple of an additional strip 6. For the in Fig. 7 and 8 shown three-pane window all the frame and case ment pieces 21 and 22 respectively and 23 are formed of pieces from the material profile 10, whereby the first shank 14 of the jambs or the ver tical pieces and the head or the upper piece of the frame forms a rabbe for the outer casement 22, while the shank 14 in the sill or the under piece of the frame forms a rabbet for the inner casement 23. The frame piece's 21 second shank 15 is turned to the wall side or limiting sur¬ face in the opening in the building or building element. For the inner casement 23 the said shank 15 forms a rabbet for the frame 21, whereby sealing strip 36 may be arranged between casement and frame. The said first shank 14 in the outer casement 22 forms a support for the outer window 38. In the vertical pieces and the upper piece of the frame 21 the first groove 7 forms a water track and the other groove 8 an extra track. The second groove 8 in the casements 22, 23 forms the edge re¬ cesses 28 and 29 respectively, which accomodate the connecting hinge 34, see Fig. 7 and other connecting fittings, as a connecting catch 33, where the support for the catch is inserted in a groove. The first groove 7 may in the inner casement 23 be utilized in connection with shutting fittings 30 and provides adequate space for the assembly of such fittings. In Fig. 7 is thus shown a handle 31 for regulation of an espagnolette 32. To provide sufficient support for an insulated pane the strip 4 may be aligned or aligned to the inner casement 23 as per the embodiment shown. Additional support strips 24 and 25 may be arranged for the glazing of the window. One advantage with the device in accord¬ ance with the invention is that the outer casement 22 in the casement piece 2 is already provided with a support strip in the form of the said second shank 15. In addition to the excellent support, puttying of the glass pane is avoided in the case of the window shown, and also for simpler two-pane windows or special glazing strips in the case of other multi-pane windows and insulation windows. For supplementation of the frame depth the window or frame 21 may be provided with a graining or covering strip 27. It should be pointed out, however, that design and dimensioning of the frame 21 and material profile 10 ensure sufficient depth for normal walls and including the walls surfaced with brick or the like. For the supplementation of the frame 21 to the wall side in the sealing interspace a filler strip 26 may be arranged to the frame, whereby the third groove 18 may be utilized as a fixed part for an attachment device 19. For the purpose of opening, the window as per the example is provided with a supporting hinge 35, for example a bolt hinge. Recessing for hinging and also lock and shutting fittings are made after length adjustment of the frame and casement pieces in accordance with the method referred to in the introduction of the description. In Fig. 8 is shown the sill or the under piece of the frame 21, which is arranged turned opposite the vertical piece and upper piece of the frame and is provided with a cover strip 37 and a window sheet 39 or window sill appropriately made of metal. The cover strip 37 may be designed in aluminium. As a supplement to the wall side a filler strip 26 as previ- ously may be arranged to the frame 21 or other filler strips 40 and 41, whereby the third groove 18 in the frame 21 may be utilized as a fixed part for an attachment device 19. The.use of the proposed filler strips can imply a reduced range of material for the window, since the strips may be of such types as are included in other construction parts in a window, which is made apparent below. Despite the presence of the cover strip 37 the first groove 7 and also the second groove 8 in the under piece of the frame 21 may be utilized in the device. Thus the cover strip 37 displays holding and supporting flanges, whereby the holding flange 42 may be inserted in supporting contact with the grooves or in the first groove. Three profiles 1, 2 and 3 have thus been used for this window, whereby two of the profiles 2 and 3 are designed from the first profile 1 or from the material profile 10 via ' a saw cut, that is, that the three pro- files are achieved from the basic profile. The inner casement 23, that is, the third profile 3, is supplemented with the strip 4 for the attain¬ ment of the support for the insulation pane. The device in accordance with the invention displays a method of manufacturing a window with the least possible number of different profiles with connected casements. The device may also be utilized for other windows than the previously shown standard window. A simpler design may be used for simpler windows, such as the two-pane window shown in Fig. 12 and 13. The material profile 20 is thus used for the frame 21 and casement 22, 23, whereby the mate¬ rial profile is initially provided with or planed so that the inner support for the pane or the inner window is already arranged. The sup¬ port thus comprises the said third shank 17. The supplement between the frame 21 and the limiting edge in the opening or sealing interspace can be made with the aid of a previously mentioned filler strip " 40 or anothe filler strip. A certain degree of handling and assembly is thus avoided. Otherwise, this window corresponds in a constructive way with the previ¬ ously described window. Preferably a glazing strip 42 is used for the inner casement 23 and which may appropriately display a slightly diffe¬ rent dimension than the previous corresponding glazing strip. However, it is possible to manufacture a window in an even simpler manne and with only one profile, that is a window without connecting casements as outlined by the window with three-pane insulation window according to the embodiment in Fig. 14 and 15 and also with for example four-pane insulation window. Thus one and the same material profile is used for both the frame 21 and casement 43, for example a material profile 10 according to the embodiment. Savings are therefore made in handling and assembly of the window, since division of the material profile 10, 20 * does not need to be carried out and neither is there any assembly of connecting fittings. The design concept and principle for the device in accordance with the invention corresponds, however, to what has previ¬ ously been said. When the examples show insulation windows then strips for the securing of the support for the panes are also used. For the example with four-pane insulation window, therefore, the strip 4 is used on casement 43 on the inside of the window and the strip 6 on the casement on the outside of the window. For the example with three-pane insulation window the strip 5 is used on casement 43 on the inside of the window and the strip 6 on the casement on the outside of the window. The greater width of strip 5 is thus used as a supplement with respect to the thinner insulation pane. The embodiments have therefore shown four different windows from a wide variety of frames and casements of the same material profile or basic profile. Since the windows are made from one single basic profile and the profile pieces for the frame and casement are the same, then this material for the manufacturing of windows can be stored as semifinished goods, since subsequent operations only require simpler equipment or machines. This implies that the manufacturing of windows may take place locally at glaziers or in the building materials trade. Instead of the storage of finished windows in different sizes a basic profile is stock¬ ed or one or several material profiles, such as three finished profiles for frame and outer and inner casement. The latter alternative increases storage somewhat in value but not in volume. The trade only needs to stock, therefore, the basic profile, which with simple apparatus or machines can be made into windows, or material profiles for both frames and casements for windows with connecting casements. Obviously, window manufacturing can take place in the conventional manner in window facto¬ ries and be marketed accordingly. Irrespective"which window is manufactured with the material profile, then, an additional and important- advantage is achieved, namely that to the outside is always achieved in the casement frame or casement an, in one piece with the material profile and glazing all-round edge strip, namely in the form of the said second shank 15 in the material profile 10, 20. This prevents the removal of the pane from the window in the event of theft or the like, since the said second shank is always turned to the outside of a wall. In order to manufacture a window for a fixed window pane, for example for a three-pane insulation window, that is a non-opening window or the like, then the material profile 10, 20 is used in the conventional manne as a frame, whereby the window pane is arranged in the casement frame arranged by frame pieces and casement frame pieces I, II. Support strips for glazing of the window pane are thus aligned, whereby the said first groove can be utilized for the purpose of a supporting strip. The frame and casement frame pieces can be connected at the coners by mitring, with the exception of the sill or under piece of the frame, which can be connected by end-profiling and screw or in another appro¬ priate manner. Mitring may be carried out simply in a very simple appa¬ ratus, which provides joining at low cost, particularly in comparison with tap and slide. Together with the use of unsorted timber quality and timber dimensions for storage, for example 2 1/2" times 4 1/2", the rational manufacturing, the possibility of avoiding puttying by the windows being filletted secure, which in turn implies that putty damage is avoided, etc., then this implies that the device in accordance with the invention representsa considerable improvement in the manufacturing of windows. Moreover, thedevice is equally appropriate for the manufact uring of simpler windows, such as for summer cottages, current types of standard windows, three-pane windows, four-pane windows, windows with insulated panes, corresponding doors with or without glazing, etc. Without going beyond the scope of the concept of the invention modifica tions of the device and the method in accordance with the invention should be possible. Thus additional grooves in the basic profile or thi displaying a slightly different design and relative dimensions does not depart from the concept of the invention, for example, see Fig. 16. Water tracks, rebates and flanges may display a different detail design. It is obviously possible to design the profile with several sub-profile which are connected. This results, however, in a reduction of the in¬ vention's advantages by increasing the number of work operations. Recess ing for fittings may be made in selected materials, which are then length adjusted. This should be avoided, however, since the advantage already exists that the best side does not need to be selected or that the best side is used for casements and the inside of these or that inferior qualities are used for less sensitive windows or building con- structions which are not so exposed to weather and wind. Parts or entire frames, casement frames and/or casements may be provided with a covering of metal, such as thin sheeting or a metal profile of aluminium. The device and the method in accordance with the invention is thus not re¬ stricted to what has been shown and described in the embodiments but only by the subsequent claims.

Claims: Claims : 1. Device for building constructions, such as windows, doors or other opening or non-opening components and component frames, casement fra¬ mes and/or casements for connection to frames or casement frames or to openings in buildings or building elements, whereby a frame (21) for a building construction comprises frame pieces (I, II) from a ma¬ terial profile (10, 20), which displays at least a first shank (14) and a first groove (7), characterized in that the said material profile (10, 20) is used as a frame (21) or a casement frame for fixed windows, for windows with single casement (43) as both frame (21) and casement (43) or casement frame and for windows with connected casements (22, 23) as both frame (21) and outer and inner casement (22 and 23 respectively) or casement frames, whereby the material profile (10, 20) for use for connected casement frames or outer and inner casements is divided to form casement pieces (2, 12 and 3, 13) or material pieces for outer and inner casement. 2. Device in accordance with claim 1, characterized in that the material profile (10, 20) is divided in a cut (9) in a second groove (8) or the material profile to form, casement pieces (2, 12 and 3, 13) or material pieces for an outer or inner casement (22 and 23 respectively). 3. Device in accordance with claim 2, characterized in that the said first groove (7) in the material profile (10, 20) is arranged connected to the said first shank (14) and forms a water track in at least the upper piece and the vertical pieces of frames, heads and jamb, while the said second groove (8) in the material profile (10, 20) is arranged to be able to accomodate a part of a hinging (34), couple catch (33) or other fitting for connected casement frames or outer and inner casements (22 and 23 respectively). 4. Device in accordance with claim 1, characterized in that the said first shank (14) in the material profile (10, 20) forms a rabbet for a casement frame or a casement (43 or 22 and 23) to the frame turned to the casement frame, casement or the said opening and forms in a casement frame or a casement (43 or 22 and 23) a rabbet to the frame (21). 5. Device in accordance with claim 1, characterized in that the material profile (10, 20) displays a second shank (15), which is arranged diame¬ trically to the first shank (14) in the material profile and is in a frame (21) arranged to the said opening's limiting surface and forms in a casement frame or a casement (43 or 22 and 23) a first supporting stri for in the casement frame or casement arranged part, such as sheets, windscreens (38), filler pieces or corresponding parts for windows and doors. 6. Device in accordance with claim 1, characterized in that the material profile (10, 20) displays either a third groove (18) for receiving an attachment device (19) of a rabbet, a strip (4), a filler strip (26, 40) a covering strip or the like or a, in one piece with the material profi¬ le, shaped third shank (17), which groove or shank in a frame (21) is turned to the said opening's limiting surface and in a casement frame or a casement (43 or 22 and 23) forms a holding part for a second support¬ ing strip (16) or a second supporting strip for an in the casement frame or casement arranged part, such as sheets, windscreens (38) or corre¬ sponding parts for windows or doors. 7. Device in accordance with any of the preceding claims, characterized in that the material profile (10, 20) displays a design such that frame, casement frame, casement or material pieces of the material profile, can be connected to for example a framework arrangement by mitred corners or joints between upper piece and vertical pieces. 8. Method.of realizing a building construction, such as a window, a door or other opening or non-opening building components, which comprises frames, casement frames and/or casements for connection to frames or. casement frames or to openings in buildings or building elements by a device in accordance with claim 1, characterized in that a material pro¬ file (10, 20) is manufactured, which is provided with at least a first shank (14) and a first groove (7), whereby tha material profile in the form of frame pieces or casement frame pieces (I, II) is used as upper piece, vertical pieces and under piece in for example a window or a door and in the form of casement frame pieces or casement pieces (I, II) and also as upper piece, vertical pieces and under piece in for example a window or a door with single casement (43) and in the form of casement pieces (2, 12 and 3, 13) and also as upper piece, vertical pieces and under piece in a window or a door with connected casements (22, 23). 9. Method in accordance with claim 8, characterized in that the material profile (10, 20) is provided with at least a second shank (15) and a second groove (8) at once, whereby both shanks (14, 15) are arranged diametrically on the material profile and the named grooves (7, 8) in the same side surface in the material profile. 10. Method in accordance with claim 9, characterized in that the materi¬ al profile (10, 20) is provided with either a third shank (17) or a third groove (18) at once, whereby the third groove is arranged in the opposite side surface in the material profile.

Inventors: FASTH ERIC, FASTH, ERIC
Applicants: FASTH ERIC, FASTH, ERIC
Application year: 1985
Main classification: E06B1
IPC codes: E06B3