MOUNTING ARRANGEMENT, ESPECIALLY FOR CONSTRUCTION ELEMENTS

Abstract: Mounting arrangement, especially for construction elements which can be assembled to structures according to the principle of modules, and for the purpose of providing construction elements which can easily be mounted and demounted there is according to the inventon suggested that the assembly comprises a section rail (A, B) extending along at least a portion of one or more end edges of a construction element (30, 31), and that each rail is provided with alternating protrusions (11, 12) respectively recesses (3, 4, 5, 6), which come into engagement with opposite recesses respectively protrusions of a sectional rail of a second element. The invention also gives instructions about how the sectional rails can be interlocked. When two sectional rails are put together, there are left one or more double tracks allowing for the insertion of a portion of a third or fourth sectional rail which otherwise can protrude from the one or the other side of the two said sectional rails and form the basis of another mounting unit together with further sectional rails.

Description: Mounting arrangement, especially for construction elements. Field of the invention The present invention relates to a mounting arrangement, especially for construction elements which are to be assembled to structures according to the principle of modules. Prior art From DE-AS1.276.315 there are known assemblies of sectional rails, in which the individual sectional rails are put to¬ gether by means of gluing, welding or screw connections. Even if it is suggested in this publication the putting to¬ gether of two sectional rails, there being provided C-shap- ed rails in the channels, no instructions are given about how such rails can be located along a portion of a con¬ struction element which together with similar construction elements are to be assembled to for example a building structure. Neither is there given any information about how such construction elements can be locked together in a re- leasable manner without using glue, welding or screw con¬ nections. From US Patent Specification 3.977.149 there is known a rail structure composed of a plurality of U-shaped sections forming a sguare, undulated space. The individual sections are held together by means of either fixing means being threaded through appropriate holes, or rivets, adhesive etc., but this interfitting of the sections are only used in connection with structures in which the sections them¬ selves form the construction elements. Thus, neither gives this publication information about sectional rails which are provided along the edge of construction elements, the sectional rails being used for the interfitting of the con¬ struction elements themselves for the construction of larg¬ er composed structures. Brief description of the invention The object of the present invention is to give information about a mounting arrangement of the type stated in the pre- amble, which provides construction elements which in a • simple manner can be assembled and disassembled, the use of gluing, welding and other permanent fixing methods being dispensed with. The object is achieved in connection with said type of mounting arrangement, which according to the invention is characterized in that the arrangement comprises a sectional rail extending along at least a portion of one or more end edges of a construction element, and that each rail is provided with alternating protrusions and recesses respec¬ tively, which can interfit with correspondig recesses and protrusions respectively of a sectional rail of another element. A further feature of the arrangement according to the in¬ vention is to the fact that the sectional rails at their ends are provided with holes which during the assembly of two construction elements substantially register with each other, and that in the area of the holes there are provided one or more blocks having a track, and into the holes there may be inserted a key with pins which during turning of the key will be inserted into the tracks for the interlocking of the rails of the elements. Preferably the holes in the sectional rails can have a somewhat oval form, and the key can take the form of a sub¬ stantially flat piece having a width substantially corre¬ sponding to the smallest transverse dimension of the holes, such that the holes of the different sectional rails which possibly do not register with each other during the assemb¬ ly of the sectional rails, will be pulled into register with each other when the key is inserted through the non- registering holes and the turning thereof to locking posi¬ tion. To build up a structure according to the principle of modu¬ les the sectional rails are given such a form that after the interfitting of pairs of rails, there is left one or more double tracks which allow the insertion of a portion of a third or a fourth sectional rail, which otherwise can protrude out from the one or the other side of the two firstly interfitted sectional rails. The third or the fourth sectional rail can then have a pro- truding portion corresponding substantially to the first or a second rail section, for thereby forming the basis of new mounting units together with further sectional rails. Al¬ ternatively the third or the fourth sectional rail can have protruding portions which allow for the hooking onto of corresponding sectional rails, for example on a construc¬ tion element which is to be arranged vertically relativ to a horizontal construction element. The locking device can according to an appropriate embodi- ent comprise one or more locking members which during the assembly of two construction elements allow free interfit¬ ting thereof, but which at finished assembly thereof will come into locking engagement with a corresponding locking member. An appropriate embodiment of such locking members is to the fact that in the area of a sectional rail of a first con¬ struction element there is provided a device having one or more locking members taking the form of protrusions, the protrusions under the influence of a sectional rail on a second construction element during the interfitting thereof being forced back to a position which allows for free interconnection of the construction elements, but which at the finish of the assembly will be urged forwardly to a locking interconnection with the second element. A special embodiment of such a locking device is to the fact that the protrotion forms part of a resilient means which is provided in the area of a first sectional rail on a first construction element, the protrusion in non-influ¬ enced position protruding through a hole in a portion of the sectional rail. The resilient means can comprise springs, loads etc., which • provide a counter-force when the protrusion is influenced by a corresponding sectional rail portion during the inter¬ fitting of two construction elements. Preferably a corresponding sectional rail portion can be provided with longitudinally extending track, into which the protrusion can engage when said two construction ele¬ ments are fitted together. Such a longitudinally extending track will involve that even after the interfitting of the construction elements, the same can be displaced relative to each other in the direction of the track, but without dispensing the locking effect in the transverse direction of the track. In this connection the protrusion can have such a shape that it is influenced by a sectional rail portion during the fitting together of the construction elements, towards a retracted non-locking position during the assembly, the protrusion including a second surface which in its locking position will come into engagement with said track. The counter-force can be provide in various manners and may for example comprise a weight or a load which possibly in combination with a spring force can influence the locking members in the direction towards a locking position. If the locking device is to be adapted such as to be brought out of its locking position when two opposite ele¬ ments are assembled, the locking device can comprise means which are arranged to balance the counter-force. Such means can for example comprise a rope or a line which can lift the weight or the load, at the same time as the locking members are guided to a retrected non-locking position for the release of the assembled elements. Appropriately, the means for the balancing of the counter-force may comprise units which are remotely controlled, for example via radio- signals, direct connection or in other ways. The means for balancing the counter-force can appropriately comprise electric, mechanical and/or hydraulic componnents, all depending on the environment existing on the site of assembly of the elements in question. The invention will in the following be further discribed, reference being had to the drawings which illustrate em¬ bodiments of sectional rails and construction elements comprising the invention. Brief description of the drawings Fig. 1 is a perspective view of the end portion of a first embodiment of a sectional rail which is included in the mounting arrangement according to the present invention. Fig. 2 is a perspective view similar fo Fig. 1, and illu¬ strates a second embodiment of a sectional rail which is included in the mounting arrangement according to the in¬ vention, and which is adapted to fit together with the sec- tional rail of Fig. 1. Fig. 3 is a perspective end view illustrating the profiled rails of Fig. 1 and Fig. 2 in interfitted position. Fig. 4 is on a larger scale a perspective view of the in¬ terfitted sectional rails of Fig. 3, and illustrates de¬ tails of the locking arrangements of the rails. Fig. 5a is a perspective view of an embodiment of a key which is used for the interlocking of sectional rails in the mounting arrangement according to the invention. Fig. 5b is a diagrammatic view illustrating a key inserted in holes in different sectional rails which are somewhat staggered relative to each other. Fig. 6 is a perspective view of a sectional rail which is included in the mounting arrangement according to the in- 5 vention. Fig. 7 is a persepctive view illustrating the assembly of the first, the second and the third embodiment of sectional rails. 0 Fig. 8 is a section through a part of a construction body, in which the mounting arrangement according to the inventi¬ on comprises construction elements which are assembled according to the module principle, as well as further em- 5 bodiments of sectional rails. Fig. 9 is a perspective view of a part of an end portion of a further sectional rail together with which a variant of a locking device can be used. 20 Fig. 10 is a perspective view of a part of another further sectional rail which can be interfitted with the rail illu¬ strated in Fig. 9, and which is adapted to cooperate with said locking device. 25 Fig. 11 is a perspective view which illustrates an assembly of the first rail illustrated in Fig. 9, the second rail illustrated in Fig. 10 and the third rail which is inter¬ fitted with the first and second rail. 30 Fig. 12 is a side view of a special embodiment of a locking device. Fig. 13 is a sectional view of a detail of Fig. 12. 35 Fig. 14 illustrates another detail of Fig. 12. Fig. 15 is a side view of another embodiment of a locking device. Fig. 16 is a top view of the embodiment illustrated in Fig. 15. Description of preferred embodiments 5 In Fig. 1 there is illustrated a perspective view of the end portion of a first embodiment of a sectional rail which is generally designated by A, and which is included in the mounting arrangement according to the present invention. 10 The sectional rail A comprises two freely extending side portions 1 and 2, respectively, and said side portions merge into substantially rectangular, wave-shaped sections which in the illustrated embodiment form four recesses 3,4, 5 and 6, respectively. T5 Correspondingly, it is in Fig. 2 illustrated a perspective view of a second embodiment of a sectional rail which is here designated by B, and which is adapted to interfit with the secitonal rail A in Fig. 1. 20 Thus, the sectional rail B in Fig. 2 is provided with two freely ectending edge portions 7 and 8, respectively, which merge into two substantially rectangular sections forming two narrower recesses 9 and 10 as well as two protrusions 25 ιι and 12, said protrusions 11 and 12 being adapted to fit into the recesses 4 and 5 in the sectional rail A in Fig.l. In the sectional rails illustrated in Fig. 1 and Fig. 2 there are provided a plurality of holes which in the sec¬ 30 tional rail A in Fig. 1 are designated by 13A, and which in the sectional rail B in Fig. 2 are designated by 13B. At the inside of the edge portions 1 and 2 of the sectional rail A in Fig. 1, there are in the area of the respective 35 holes 13A provided two blocks 14a and 14b, respectively, at the edge portion 1, and two blocks 15a and 15b at the edge portion 2. In each of the blocks 14a, 14b and 15a, 15b the¬ re is provided a track 16 as this most clearly appears from Fig. 4. The holes 13A and 13B as well as the blocks 14a and 14b including their track 16, serve for the interloc¬ king of the sectional rails by means of a key which will be further described in the following. In Fig. 3 the rail A of Fig. 1 and the rail B of Fig. 2 are shown in assembled position, the recesses 11 and 12 of rail B being inserted in corresponding recesses 4 and 5 of the rail A in Fig. 1. At the same time the recess 9 of rail B together with the recess 3 of rail A form a double track serving for the insertion of a portion of a further rail, as this will be further explained in connection with Fig. 6-8. Correspondingly, the recess 10 of the sectional rail B to- gether with a recess 6 of the sectional rail A form a doub¬ le track having the same object as the above discussed double track (3,9). In Fig. 5a there is illustrated perspectively an embodiment of a key 20 which can be used to interlock the sectional rails of the mounting arrangement according to the inventi¬ on. The key 20 is manufactured as a flat piece which at the ends is equipped with pins 21, the key in the area of the pins 21 being provided with an extension 22 serving for the attachement of a tool for the turning of the key when this is inserted in the above discussed holes 13A and 13B in the assembled sectional rails A and B. It is to be understood that the pins 21 and the length of the key 20 are adapted so that the pins 21 after the insertion of the key into the holes of the sectional rails and an appropriate turning thereof, will be guided into the tracks 16 in the above disclosed blocks 14a, 14b and 15a, 15b for the interlocking of the rails. In Fig. 5b there is illustrated a fraction of the sectional rail A and sectional rail B having their holes 13A and 13B, respectively, formed with a somewhat oval shape. In this connection it is to be mentioned that the key 20 which takes the shape of a subatantially flat piece, has a width substantially corresponding to the smallest diameter of the holes, such that holes from different sectional rails, here the sectional rail A and the sectional rail B, which possibly do not register with each other during the interfitting thereof, will be pulled into register with each other by the insertion of the key 20 through the non-registering holes 13A and 13B by turning the key 20 to locking position. In Fig. 6 it is perspectively illustrated a third embodi¬ ment of a sectional rail, here generally designated by C, which may be included in the mounting arrangement according to the invention. The front portion of the rail C corre¬ sponds to the sectional part of the rail A in Fig. 1, but it has in addition a T-shaped section, here indicated T, which is adapted to fit into the above mentioned double track appearing when the sectional rail A in Fig. 1 and the sectional rail B in Fig. 2 are fit together. It is to be understood that the rail C can either be assembled together with the assembly of the rail A and the rail B, or it can be insterted into the double track by being threaded there¬ into. In Fig. 7 it is perspectively illustrated the assembly of the rail A, the rail B and the rail C, all three being interlocked by means of the above disclosed key 20 which here is inserted through the holes which are made in the respective rails. Because the sectional rail C has a protruding portion cor¬ responding substantially to the section of the rail A, the rail C can form the basis of a new mounting unit, possibly together with further sectional rails. i is to be understood that in the second double track bet¬ ween the rail A and the rail B there can be inserted a por¬ tion of a further sectional rail which can protrude to the other side of the assembly comprising the rail A and the rail B. In Fig. 8 there is shown a diagrammatic view through a part of a building body 29 in which the mounting arrangement according to the invention comprises construction elements assembled according to the principle of modules and comprising further embodiments of sectional rails. In Fig. 8 there is consequently illustrated a first con¬ struction element 30 which at the upper and the lower end is provided with a sectional rail of the type A as discus- sed above, the construction element 30 constituting av wall element of the building body 29 illustrated in Fig. 8. The construction element 30 is at its lower end interfitted with a rail of the type B, the B-rail being attached to a longitudinally extending construction element 31 which at its lower part rest on a foundation 32. The lower A-rail of the construction element 30 and the B-rail of the construc¬ tion element 31 define inter alia a double track which houses a further sectional rail, here designated by D, which has a protruding portion in the form of a hook onto which a corresponding sectional rail E of a transversely extending construction element 33 can be hooked. That part of the sectional rail D which is fixed in the double track between the A-rail and the B-rail is here designated by T. In a corresponding manner the construction element 30 has its A-rail which is provided at its upper side, mounted in engagement with a B-rail of a roof element 34, the A-rail and B-rail defining a double track, in which a D-rail having a hook-shape constitutes a hook-on means for another transversely extending construction element 35, which along its edge is provided with a sectional rail of the type E. In other words the building body illustrated in Fig. 8, comprises a plurality of structural rails running along at least a part of one or more end edges of construction ele¬ ments, each rail being provided with alternating protruti- ons and recesses interfitting with corresponding recesses or protrusions of a sectional rail of another element. Due to the above discussed locking device the construction ele¬ ments can releaseably be interfitted by means of very simp¬ le tools, a fact which involves that the construction ele- 5 ents can easily be demounted and be used i other connec¬ tions. It is to be understood that the sectional rails can be ma¬ nufactured from any appropriate material. For example, it 10 may be used steel, aluminum, plastics material with or without reinforcement, as well as other methods. The rails may suitably be attached along the edges of construction elements by means of gluing, riveting etc., the manner of attachement and the choise of material in the rails and 15 elements being dependent on the field of application of the construction elements . Further embodiments of the locking device will now be discussed in the following. * 20 In Fig. 9 and also in Fig. 11 there is illustrated a per¬ spective view of an end portion of a first further sectio¬ nal rail wich is generally designated by AA, and which is so adapted that a variant of the locking device can be in- 25 eluded therein. The sectional rail AA comprises two freely extending side portions 101 and 102, respectively, and these side portions merge into substantially rectangular, wave-shaped sections which in the illustrated embodiment define four recesses, 103,104,105 and 106, respectively. 30 Correspondingly, there is in Fig. 10 as well as in Fig. 11, illustrated a second sectional rail BB, provided with two freely extending edge portions 107 and 108, respectively, merging into substantially rectangular sections defining 35 two smaller recesses 109 and 110, as well as two protruti- ons 111 and 112, said protrusions 111 and 112 being adapted to fit into the recesses 104 and 105 of the sectional rail AA in Fig. 9, as appearing from the assembly illustrated in Fig. 11. In the sectional rail AA illustrated in Fig. 9 there is provided a hole 113 in one of the sidewalls of the recess 104, and a corresponding opening is provided in the corre¬ sponding side wall of the recess 105 of the same sectional rail AA. As appearing from Fig. 11, and as illustrated with dashed line in Fig. 9, there is in the area of said side walls of the recesses 104 and 105, i.e. in the area of the holes 113 arranged a box or a housing 114 housing an especial locking device. Such a locking device can comprise one or more locking mem¬ bers which during the assembly of two elements provided with sectional rails, for example the rails AA and BB dis¬ cussed above, allow for free interfitting of the elements, but which at finished interfitting of the elements will come into interlocking engagement with a corresponding mem¬ ber. In the embodiments of locking means which are to be discus¬ sed in the following, the engagement relation between two sectional rails AA and BB can appropriately be realized in the form of a longitudinally extending track 115 provided in the inner wall of the protrusion 111 of the sectional rail BB, it being understood that a corresponding track 111 is provided or arranged in the opposite side wall of the protrusion 112 of the sectional rail BB. in other words the housing 114 can accomodate one or more locking members which during the influence of the sectional rail BB, when this is fit into the sectional rail AA, will be forced back to a position allowing for the interconnec¬ tions of the sectional rails AA and BB, but which at fi- nished assembly of the sectional rails are urged forwardly to a locking engagement with the sectional rail BB, that is the longitudinally extending track 115 provided in the protrusion 111 of the rail BB. In Fig 12 which is a side view of a special embodiment of a locking device, this will comprise two locking arms 120 and 121 which are arranged in said housing 114, and which are connected in an inclined manner at a central pivot axis 122. At its lower end each of the arms 120 and 121 are pro¬ vided with a foot portion 123, as this is most clearly en¬ visaged from Fig. 14, for in this manner to be guided in a track 124 arranged at the bottom of the housing 114. The two arms 120 and 121 can thus during the guiding in the track 124 take different inclined positions relative to each other, one of the inclined positions involving that the arms 120 and 121 defined a more acute angle relative to each other, entailing that the pivot axis 122 is raised relative to the bottom of the housing 114. By this movement of the arms 120 and 121 towards each other, the upper lock¬ ing portions of the arms 120a and 120b, respectively, will be brought closer to each other, i.e. they can be guided between a first position in which the arms have their lock¬ ing portions 120a and 120b in a retracted position in the housing 114 itself, and another position in which the lock¬ ing portions 120a and 120b extend through openings 125a and 125b in respective house walls, as well as through the abo¬ ve mentioned openings 113 in the recesses 104 and 105 of the sectional rails AA illustrated in Fig. 9 and 11. When the arms 120 and 121 are in their retracted position with the locking portions 120a and 120b inside the wall of the housing, the arms will be influenced by a counter-for¬ ce, here implemented as a coil spring 126 and/or a piston or a weight 127. In other words the spring force 126 and the piston or the weight 127 will influence the arms 120 and 121 in a direc¬ tion towards a locking position. The above discussed closing portions 120a and 120b both comprise an incused surface 120c and 120d, respectively, which are so adapted and shaped that they during the assem¬ bly of the rail AA and BB will be influenced to a retracted non-locking position during the course of the assembly, un¬ til the locking portions 120a and 120b will reach the level of the longitudinally extending tracks 115 in the protru¬ sions 111 and 112 of the sectional rail BB, at which the locking portions 120a and 120b will snap into the tracks 115 and thus come into locking engagement with said tracks. The piston 127 can appropriately be shaped as a shortened cone, which along its inclined surfaces can be provided with a track 127a which closed around a T-shaped portion 128 extending along the upper portions of the arms 120 and 121. It is to be understood that the tracks 127a and the T-shaped portions 128 may be provided with an appropriate clearence to follow the different inclined positions of the arms 120 and 121. In Fig. 12 there is shown a rope or a line 128 which under the influence of a not illustrated means can lift the weight or the piston 127 at the same time as the arms 120 and 121 are guided back to the retrected non-locking posi¬ tion for the release of the assembled sectional rails. The means for releasing the counter-force can for example in¬ clude units which can be remotely controlled, for example via radio signals, direct connections or in some other way. It is further to be understood that the means for removing the counter-force holding the arms 120 and 121 in the lock¬ ing position, can comprise electric, mechanical and/or hy¬ draulic components, all in dependence of the environment existing on the mounting site for the sectional rails and the associated construction elements. It is to be understood that variants of the locking device illustrated in Fig. 12 can be provided, and any device be- ing able to effect a locking function, and at the same time possibly, being releasablecan be used in connection with the present invention. In Fig. 15 and 16 there is illustrated a simplified locking device, the device here comprising a primarily prismatic body 130 which is arranged in a housing 131. The body 130 is provided with arms 130a and 130b which are made from a somewhat resilient material, and at the same time being provided with upper locking portions 130c and 130d exten¬ ding out through holes 132 in the housing 131. The device according to Fig. 15 and 16 operates in the same manner as the device according to Fig. 12, the locking por- tions 130c and 130d during the assembly of two correspon¬ ding sectional rails being forced back into the housing 131, whereas they upon finished assembly will snap into the above mentioned longitudinally extending track 115 provided in one of the sectional rails. The above disclosed housings 114 and 131 can be manufactu¬ red from a material which allows for point welding, or ri¬ veting, when they are to be attached to suitable locations on the respective sectional rails.

Claims: P a t e n t c l a i m s 1. Mounting arrangement, especially for construction 5 elements which are to be assembled to structures according to the principle of modules, c h a r a c t e r i z e d in that the arrangement comprises a sectional rail (A,B) which extends along at least a portion of one or more end edges of a construction element (30,31,33), and that each 10 rail (A,B) is provided with alternating protrusions (11, 12), respectively recesses (3,4,5,6) which come into enga¬ gement with corresponding recesses, respectively protrusi¬ ons of a sectional rail on a second element. 15 2. Arrangement as claimed in claim 1, c h a r a c t e ¬ r i z e d in that the sectional rails (A,B) at their ends are provided with holes (13a,13b) which upon assembly of two construction elements substantially register with each other, and that in the area of the holes (13a) there are 20 provided one or more blocks (14a, 14b,15a, 15b) provided with a track (16), the holes being adapted for the insertion of a key (20) with pins (21) which by the turning of the key (20) are guided into the tracks (16) for the interlocking of the rails of the elements. 25 3. Arrangement as claimed in claim 2, c h a r a c t e ¬ r i z e d in that the holes (13a, 13b) of the sectional rails take an oval shape, and that the key (20) takes the form of a substantially flat piece having av width substan- 30 tially corresponding to the smallest diameter of the holes, such that holes from different sectional rails (A,B) which possibly do not register with each other during the assemb¬ ly of the sectional rails, will be pulled into register with each other by the insertion of the key (20) through 35 the non-registering holes and the turning of the key to its locking position. 4. Arrangement as claimed in any of the claims 1-3, c h a r a c t e r i z e d in that the sectional rails (A, B) when being assembled in pairs, define one or more double tracks (3,9 respectively 6,10) which allow for the inser¬ tion of a portion (T) of a third or fourth sectional rail (C or D) which otherwise can protrude from the one or the other side of the two assembled sectional rails. 5. Arrangement as claimed in any of the claims 1-4, c h a r a c t e r i z e d in that the third and the fourth sectional rail (C) has a protruding portion corresponding substantially to the first or the second sectional rail (A or B), such that the third or fourth sectional rail forms the basis of a new assembly unit together with further sec¬ tional rails. 6. Arrangement as claimed in any of the claims 1-5, c h a r a c t e r i z e d in that the third or the fourth sectional rail (D) has a protruding portion in the form of a hook, onto which a corresponding sectional rail (E) of a transversely extending construction element (33) can be hooked. 7. Arrangement as claimed in claim 1, c h a r a c t e ¬ r i z e d in that a locking device comprises one or more locking members which during the assembly of two construc- tion elements allow for free assembly of the elements, but which at finished assembly of the elements will come into locking engagement with a corresponding member. 8. Arrangement as claimed in claim 1 or 7, c h a r a c- t e r i z e d in that in the area of a sectional rail (AA) of a first element there is provided a device (114) having one or more locking members (120, 121), the locking members under the influence of a sectional rail (BB) of an¬ other element during the assembly of said two elements, be- ing retracted to a position which allows for free assembly of the elements, but which at the finished assembly of said elements are urged forwardly to a locking engagement with the section element. 9. Arrangement as claimed in claim 7 or 8, c h a r a c¬ t e r i z e d in that the locking members (120,121) com¬ prise a portion (120a, 120b) which is provided in the area of a first section rail (AA) of a first element, the por- 5 tion (120a,120b) in non-influenced position of the locking member protruding out through a recess (113) in a portion of the first sectional rail (AA). 10. Arrangement as claimed in any of the claims 7-9., Q c h a r a c t e r i z e d by a resilient means comprising springs, weights or material "having resilient properties, which develop a counter-force when the locking portions are influenced by a corresponding sectional portion during the assembly of two sectional rails. 5 11. Arrangement as claimed in any of the preceding claims, c h a r a c t e r i z e d in that in a sectio¬ nal portion (111) of a sectional rail (BB) there is provi¬ ded a longitudinal extending track (115) in which the loc- 0 king portions (120a, 120b) can come in engagement in the assembled position of the sectional rails (AA,BB). 12. Arrangement as claimed in any of the preceding claims, c h a r a c t e r i z e d in that the part of 5 the locking portion (120a,120b) extending through the ope¬ ning in the corresponding sectional portion (104) comprises an incline surface (120c,120d) which is adapted so as to be influenced by a sectional portion (lll.BB) of a retracted non-locking position during the cause of the assembly, and 0 a second surface which in locking position comes into enga¬ gement with said track (115). 13. Arrangement as claimed in any of the preceding claims, c h a r a c t e r i z e d in that a counter-force 5 is provided by a weight or a piston (127) which possibly in combination with a spring force (126) influence the locking members (120,121) in a direction towards locking position. 14. Arrangement as claimed in any of the preceding claims, c h a r a c t e r i z e d in that it comprises means which are adapted to balance the counter-force, for example by means of a rope or a line (128) which can lift the weight or the piston (127),the locking members (120, 121) being retrected to a non-locking position for relea¬ sing the assembled sectional rail carrying elements. 15. Arrangement as claimed in any of the preceding claims, c h a r a c t e r i z e d in that means for ba- lancing the counter-force comprises units which can be re¬ motely controlled, for example through radio signals, di¬ rect connection or in other ways, the means for balancing the counter-force comprising electric, mechanical and/or hydraulic components or similar.

Inventors: STRAND ERIK, STRAND, ERIK
Applicants: REHFSEM THOR, REHFSEM, THOR
Application year: 1986
Main classification: E04B1
IPC codes: E04B1, E04C3