the rail element shown in cross section in fig1 includes a profile strip 1 having two legs 2 , 3 which define a right angle 4 . in each of the legs 2 , 3 openings 5 , 6 are provided which continue in the adjacent clearances 7 , 8 which extend over a common corner 9 of the two legs 2 , 3 . as a whole , this creates a continuous recess 10 consisting of the openings 5 , 6 and the clearances 7 , 8 . it is important that this recess reaches over the corner 9 with closed edges into the surface areas of the two legs 2 , 3 . it is clear that the rail element 1 has several recesses 10 provided on top of each other at a distance as shown in fig2 . groups of recesses 10 , here a group of three is shown , can be formed . but it is also possible to realize the modular dimension in a continuous manner extending over the entire length of the profile strip 1 . this profile strip 1 is applied to the face of a board 11 , e . g . a plywood , in order that one of the legs , e . g . leg 3 , covers the face of the board 11 , the other leg 2 extending parallel to the board 11 . drilled holes 12 may be provided in one or in both legs 2 , 3 for the passage of attachment screws . in order to enable the insertion of hook - formed brackets of article supports into the recesses 10 , the board 11 is equipped with a countersinking 13 in the corresponding area . it is not damaging if a bend is provided at a free end on one of the legs 2 , 3 ( not shown ) giving the profile strip 1 as a whole a u - shaped cross section . fig3 shows another embodiment of the profile strip 1 or the rail element which has been configured as to form an external corner . for this purpose an angular piece 14 is added to the free edge of the leg 2 and an angular piece 15 to the edge of the leg 3 in the represented manner , the part set back 16 of the two angular pieces 14 , 15 , is provided at a depth 17 , which is adjusted to the thickness of a board 11 to be inserted in connection with it . this provides the possibility to use surface - finished boards 11 whose 1 cutting surface do not have to be treated separately , instead it is closed off when the profile strip is applied . in order to fix the boards 11 , drilled holes 12 may be provided in the angular pieces 14 , 15 . this enables the formation of an external corner 18 by way of connecting the boards 11 . this exterior corner 18 can also be seen in fig5 . additionally , an interior corner 19 is represented , showing that the angular pieces 14 &# 39 ; and 15 &# 39 ; are arranged as required in this embodiment . the depth 17 &# 39 ; has also been kept , of course . in these profile strips which form an interior corner or an exterior corner the openings 5 , 6 and the clearances 7 , 8 are provided to form continuous recesses 10 as already described in fig1 and fig3 . fig6 and 7 show a further embodiment of the rail element . here the recess according to the invention is applied twice . a profile strip 20 with a squared hollow section is provided . here as well the two legs 2 , 3 are realized which define the common angle 4 in the area of the common corner 9 . here the openings 5 and 6 , and the clearances 7 and 8 are also realized . to the leg 3 another leg 21 is annexed which again has an opening 22 and a clearance 23 . the leg 3 has annexed to its opening 6 another clearance 24 toward the other side thus creating a continuous open space 25 consisting of the openings 5 , 6 , 22 and the clearances 7 , 8 , 23 , 24 which is formed with closed edges and extends over the planes of the legs 2 , 3 , 21 in the shown manner . the legs 3 , 21 define another right angle 27 at the corner 26 . this profile strip 20 can be applied on the face of the board 11 as shown in fig6 and 7 . it is however also possible to arrange this rail element 20 on the side as shown in fig1 , arranging several rail elements 20 facing each other . the connection with the board 11 takes place practically through a hole 28 in the backwall 29 of the profile strip 20 through the open space 25 . fig8 shows a special advantage of the profile strip 20 which is also given analogously by the use of the profile strips 1 . the two profile strips 20 are fixed to the faces of the boards 11 which at the same time provide the gallery walls of a shelf or the like to be erected . it is also possible , of course , to fix the profile strips 20 directly to a wall 30 represented by a broken line , e . g . with the conventional dowel assembly method . an article support 31 is shown carrying on both ends hook - formed brackets 32 formed in the known manner which are to be inserted into the open spaces 25 of the profile strips 20 . the translatory intercalation should take place in the direction indicated by the arrows 33 which is the only possibility given here , i . e . with profile strips 20 assembled at a fixed distance . given that the open spaces 25 extend over the corners 9 , 26 , it is possible to intercalate the brackets 32 over the breached legs 3 until the brackets 32 are introduced into the enclosed interior space 34 of the profile strip 20 . only then is the article support 31 moved down with the slots provided on the bracket 32 gripping . note fig9 which points out the special shape of the brackets 32 . finally , installing takes place in the direction indicated by the arrows 35 , i . e . in a direction 90 ° oppositely to the direction of arrows 33 . this kind of suspension was not possible in the art until now . fig1 shows a suspended relative position of three article supports 31 in a profile strip 20 which is fixed to the face of a board 11 . it is visible here that three brackets 32 are placed in the continuous open space 25 , the corresponding article supports 31 protruding into three different spacial directions . fig1 shows a possible arrangement in which profile strips 20 are arranged in niches between boards 11 on the sides in such a way that the profile strips 20 are in a relative position facing each other . here too an article support may be suspended correspondingly with the special advantage that the article support is applied between the walls 11 which are formed as gallery walls . fig1 shows another possible installation and application . here , an angle formation between two boards 11 or walls is represented . the profile strips 20 are here also fixed to the faces of the boards . transversal bars 36 are indicated , inserted into the open spaces 25 . article supports of the said kind may be inserted and fastened as well . finally , fig1 shows a possibility in which two boards 11 are provided in an angular arrangement to each other and the corresponding profile strips 20 according to fig6 are applied in the represented relative position . the two brackets 32 of an article support 37 in angular formation is inserted into the open spaces 25 in the direction indicated by arrow 33 and lowered , the brackets 32 gripping with their slots as shown in fig9 for another application possibility .
a rail element for the reception of article supports with a metallic profile strip having a cross section with at least two legs defining a right angle , having openings in one of the legs for the reception of hook - formed brackets of article supports . the openings are provided in an aligned manner at a mutual distance in the main direction of extension of the rail element according to a modular dimension which allows a height - adjustable arrangement of the article supports . in the other leg openings are provided as well and arranged at the same height as the openings in the first leg . both facing openings are connected with a clearance forming a continuous recess which extends over the right angle .