A METHOD FOR JOINING TWO STRUCTURAL MEMBERS BY THE AID OF AN ADJUSTABLE FASTENER, AND A MOUNTING FOR USE WITH SAID METHOD

Abstract: A method for joining two structural members by the aid of an ajustable fastening means (6), with said structural members consisting of a door or window frame (15) on one side and a surrounding stationary building structure (18) on the other side, which building structure (18) is displaced relative to said frame (15). The frame comprises a through hole, which is completely or partly threaded, and which comprises a threaded and, thus, adjustable fastening means (6) having a through hole (10) in its longitudinal direction, and which at one end projecting from the frame may be provided with a stop (12) for a screw head or the like. The mounting used is a disk (1) with cut-outs (2, 3) for passing through screws or the like to be attached with the building structure (18) and the disk (1) comprises in its end, which partly or completely projects from said building structure, a fastening member (4, 5) for the adjustable fastening means.

Description: h method for joining two structural members by the aid of an adjustabl_e fastener, and a mounting for use with said method The present invention relates to a method for joining two structural members by the aid of an adjustable fastener, and where the structural members comprise a door or window frame on one hand and a surrounding stationary building structure on the other hand, and where the building structure is displaced in such a manner relative to said frame that direct joining of both structural members is not possible. The invention, furthermore, relates to a fastener for use with the method. It is known to use adjustable fastening means in connection with the installation of frames, sashes or the like in adapted openings in building structures of various kinds. Such adjustable fastening means are, inter alia, disclosed in NO-PS Nos. 152,807, and 155,784, and in NO Patent Application No. 884,753, the inventor of which is the same as in the present application. According to the above specifications the fastening means essentially consists of a hollow holder means, which is internally threaded and is mounted in an adapted through hole in a sash or a frame to be joined with a surrounding building structure, on the side facing said building structure. The holder means is firmly locked into a desired position by the aid of an additional locking ring or by being provided with a locking means of its own. The fastening means according to known technology, furthermore, comprises a force transmitting member, which is externally threaded to be screwed into said holder means, and which has a head to contact the surrounding building structure. The force transmitting member also has a through hole which is completely or partly designed with a polygonal cross section, and adjacent to said head has a stop for the head of a screw, which may be inserted from the other side of the frame into the force transmitting member, so as to be screwed into the building structure, thus, to secure the force transmitting member to the latter. When said screw is not tightened to lock the force transmitting member firmly to the building structure, the force transmitting member may be turned in one or the other direction by insertion of a tool into the hole on the inside of the frame and in engagement with the polygonal hole of the force transmitting member. In this manner it is possible to adjust the distance between the frame and the surrounding building structure. Obviously, all four outsides of the frame or sash must be provided with at least one adjustable fastening means of the mentioned kind. As regards most smaller and more lightweight frames, sashes, etc. of wood material, however, it was found that sufficient stability may be achieved when the force transmitting member is mounted directly on a preliminary threaded hole in a frame, or a sash, respectively, i.e. without use of a holder means which is preferably made from metal . In this case the force transmitting member proper forms the adjustable fastening means, which is the designation used in the following. Joining such structural members as mentioned by the aid of adjustable fastening means previously depended on the fact that the structural members could be arranged directly opposite each other, so that, e.g. a window frame may be fastened directly to the surrounding building structure. in connection with certain building methods it is common to install, e.g. window and door frames upon erecting the internal wall, but before insulation and external wall/facade is erected. In connection with such building methods said frames are to be provided outside the internal wall, since e.g. windows are after all to form part of the facade of the building. In case of rehabilitation of old buildings existing facades are to be provided with an insulating layer, and outside such an insulating layer a new facade/external wall is mounted. In case of such rehabilit¬ ation, e.g. window frames, etc. must be installed further outside and more closely to the facade, and according to known building methods this is carried out before insulation and facade are mounted. With the mentioned building methods adjustable fastening means could not be utilized previously for the above reasons. Window frames were fastened in various manners in case of said building methods. One method was to use angular steel one arm of which is fastened to the internal wall, or an older existing facade, respectively, whereas the second projecting arm is used for fastening a window frame or the like. Another method was to provide the internal wall, or older existing facade, respectively, with a frame structure which then served to secure, e.g. the window frame. The above known technology does not permit readjustment of the position of the installed frame, and installation proper of the frame, thus, requires high accuracy. The method, thus, requires much labour and is time consuming. Said method with installation of an additional frame structure is also very expensive. It was an object of the present invention to provide a technical concept permitting adjustable fastening means to be used for mounting, e.g. window and door frames in case a stationary building structure does not directly surround said frame, i.e. when two building structures to be joined are slightly displaced mutually and, thus, are not directly opposite to each other. Said object according to the present invention is achieved with a method, according to which an adjustable fastening means is used, which is threaded into a frame, and which ha- a through hole in its longitudinal direction and where the end of said fastening means projecting from the frame may be designed with a stop for a screw head or the like. The method is essentially characterized by the fact that a mounting is secured to the building structure and projects from said building structure, and that the adjustable fastening means is rotatable secured to the completely or partly projecting portion of the mounting. According to a preferred embodiment the fastening means is firmly screwed onto the mounting by the aid of a screw which is inserted into the through hole of the fastening means, which is surrounded by a bead-like projection which is at the same time squeezed into and to engagement with an adapted recess in the end portion of the fastening means. This- fastening method results in a very strong joint and with a wide margin satisfies all known requirements as regards resistance against any loads. Alternative embodiments may involve either fir y screwing the fastening means to the mounting, or only using a bead on the mounting, which is then squeezed into and in engagement with a reces adapted to said bead in the end portion of the fastening means. According to the invention a mounting for use with the method is also provided, and said mounting is essentially characterized by comprising a disk which is provided with cut-outs for insertion of screws or the like to be fastened to- he building structure, and by the fact the said disk in its end projecting completely or partly from said building structure has a fastening member for the adjustable fastening means. Said disk may be plane or shaped, e.g. with a bend in a desired manner. In order to permit adjustment of the position of the mounting and thus, to achieve a high degree of flexibility as regards adjustment, one or more of the cut-outs of the mounting may be designed like a slot/slots. A preferred embodiment of the fastening means will comprise a threaded hole surrounded by a bead. The advantage of: such a ri ign of the fastening means of the mounting will - ..r.^r-* -. from the sbm^ disclosure. Al ernative embodiments of the fastening means could also b- just a threaded hole or just a bead adapted to a cut- out :< r> n* end of the adjustable fastening means. An embodiment of the invention is disclosed in more detail below with reference to the figures of the drawing, in whi.->- Figure 1 shows a perspective view of a mounting, and Figure 2 shows a sectional view of the fastening means and the mounting ready for joining a window frame and a building structure which is situar^.'. inside. Figure 1 shows mounting 1 with a slot-shaped cut-out 2 for insertion of a screw for attaching mounting 1 to a support. The slot-shaped cut-out permits a certain adjustability of the mounting when the screw is not too firmly tightened. Cut-out 3 serve.", for insertion of a screw and fastening of mounting 1 upon adjustment of the mounting into a desired position. 4 designates a threaded hole in the mounting, and 5 is a bead-like projection which is also threaded. Figure 2 shows an adjustable fastening means 6 which is mounted and ready for joining a window frame 15 to a building rtructure 18 which extends at the rear relative <-o said window frame. Fastening means 6 is mounted in a through and partly or completely threaded hole 16 in window frame 15. Originally, and during storage, transport, etc head 7 of the fastening means was screwed into and, thus, recessed in 3 self made groove 17 in frame 15. Head 7 of the fastenin g means is, in fact, provided with cutting edges 8. From rh"> -- recessed position fastening means 6, which is provided with threads 9, is s.-rewed slightly out of frame 15, so that he ■*• ■ '■ 7 contacts mounting 1. Such turning/screwing of fastening means 6 is either achieved by insertion of a tool through hole 16 in frame 15 into engagement with the polygonal h l- 10 of fastening means 6, or by the aid of a tool which it inserted through the space between mounting 1 and fraπr^ 1 ■Ό engage the polygonally shaped head 7 of fastening means 0. By the aid of a screw or the like through slot-shaped hole 2 mounting 1 is secured to building structure 18 in advance. When fastening means 6 is firmly mounted to mounting 1 it will be possible to adjust the position of mounting 1 slightly in that the mounting with a screw screwed into slot-shaped cut-out 2 may be displaced s!igh 3- in a desired direction. When mounting 1 is in the desired position a screw or the like is inserted into cut-otit 3 for final firm attachment of mounting 1 to building structure IB. At the end of fastening means 6 which will contact mounting 1 the fastening means is in the shown embodiment provided with a cut-out 11 which is adapted so as to close] - ; surround and engage with the bead-like projection 5 of mounting 1. Fastening means 6 is additionally secured to mounting 1 by having a threaded screw 13 inserted into it*-. through hole 10, which screw 13 is screwed into threaded projection 5 as well as hole 4 of mounting 1, preferably in such a manner that head 14 of the screw is in contact with stop 12 in through hole 10 of fastening means 1. It will be understood that when fastening means 6 is attached to mounting 1 in the manner disclosed above, fastening means 6 may still be turned about its axis for adjusting the space between window frame 15 and building structure 18. Readjustment of the position of mounting .1 will be possible as well, if desired, by temporary removal of the screw in hole 3 and slightly loosening the screw in _. lot-shaped hole 2. Now mounting 1 may be slightly displaced.

Claims: AMENDED CLAIMS [received by the International Bureau on 28 June 1991 (28.06.91); original claims 1, 2 and 5 amended; other claims unchanged (2 pages)] 1. A method for permanent joining of two structural members by the aid of an adjustable fastening means (6) , with said structural members consistuting a door or window frame (15) on one hand, and a surrounding stationary building structure (18) on the other hand, which building structure (18) is diplaced relative to said frame (15) which in a tfrreadeel groove holds a threaded and thus adjustable fastening means (6) , which has a through hole (10) in its longitudinal direction and which may be provided with a stop (12) for a screw head or the like at the end projecting from the frame, c h a r a c t e r iz e d i n that a mounting (1) is fastened to building structure (18) , which mounting is in contact with the building structure with part of its surface, and that the adjustable fastening means (6) is attached in a rotateable state to the completely or partly projecting portion of mounting (1) . 2. A method according to claim 1, c h a r a c t e r i z e d i n that fastening means (6) is firmly screwed onto mounting (1) by the aid of a screw (13) or the like, which is inserted into through hole (10) of fastening means (6) . 3. A method according to claim 1, c h a r a c t e. r i z e d i n that fastening means (6) is attached to mounting (1) by making the end of through hole (10) in fastening means (6) engage with and receive a suitable designed bead-like projection (5) on the surface of mounting (1) . 4. A " method according to claim 1, c h a r a c t e r i z e s i n that fastening means (6) is attached to mounting (1) by making the end of through hole (10) -of fastening means (6) engage with and receive a suitable designed bead-like projection (5) on the surface of _. Q mounting (1) , and that fastening means (6) is firmly screwed to the mounting by the aid of a screw (13), which is inserted into through hole (10) of fastening means (6) and further into a threaded hole (4) in mounting (1) and bead (5) . 5. A mounting (1) for use with the method according to claims 1 - 4, and which comprises a disk which contains cut-outs (2,3) for passing through screws or the like to be fastened in building structure (18) , c h a r a c t e r i z e d i n that said disk in its portion projecting completely or partly from said building structure has a fastening member (4 or 5,resp.) for the adjustable fastening means (6) . 6. A mounting according to claim 5, c h a r a c t e r i z e d i n that said cut-outs (2,3) are slot-shaped to permit a certain adjustability in the vertical and/or horizontal plane. 7. A mounting according to claims 5 - 6, c h a r a c t e r i z e d i n that it consists of a disk which may be bent in a desired manner. 8. A mounting according to claims 5 - 7, c h a r a c t e r i z e d i n that said fastening member comprises a::threaded hole (4) . 9. A mounting according to claims 5 - 7, c h a r a c t e r i z e d i n that fastening member (5) consists of a bead-like projection. 10. A mounting according to claims 5 - 7, c h a r a c t e r i z e d i n that fastening member (4,5) consists of a bead-like projection and a threaded hole extending through said projection r as well as the mounting proper.

Inventors: EDVARDSEN TERJE, EDVARDSEN, TERJE
Applicants: IGELA AS, IGELA A/S
Application year: 1991
Main classification: E06B1
IPC codes: E06B1