METHOD FOR GUIDING A CONNECTION STEEL-WIRE THROUGH A LIGHT PANEL STRUCTURE ENCLOSED BETWEEN OPPOSED STEEL-NETS

Abstract: A guideway device (A) is inserted through a first metal­ lic net (2) into the light structure (C, C′) without tearing same, separating elastically the fibers, for then stopping on the op­ posite net (1), letting the wire (B) to slide free in the interior thereof, finally positioning at (B′) where it will be secured to said opposite nets (1′, 2′) wherein, when the guide device (A) will be retracted to starting position, the light structure fibers elastically separated during crossing will be released lock­ ing the wire and making same integral with the structure.

Description: Guideway device and method for guidillg a tcomlectioll steel-wire through a light panel structure enclosed between opposed steel Ilets The present invention relates to a guideway device and method for guiding a conllectioll steel-wire through a light panel structure enclosed between opposed steel-nets. The invention is particularly suitable for use in construction of prefabricated elements for building and especially for connecting a light material between two metallic tlets in order to obtain a cage-shaped single structure. This type of cage provides in its interior a hollow space obtained by insertillg rectallgular or whatever-shaped light preformed or injected materials, hollow inside, in superimposed blocks, iH order to obtain a continuous cavity for permitting, once installed e.g. for carrying out walls, collcrete casting in their illterior, thus obtaining a very safe colulectioll, providing a remarkable solidity, or it can be used for carrying out only one wall providillg ill the interior thereof aji integral structure between metallic wire and foamed material. At the current state of the art similar devices are not known and at present cage enclosure by means of electric welding between net aiid net with light material enclosed therein, is carried out with well knows methods which do not need explanations as they have been knoll for a lollg time. The disadvantages of the currently-used solutions and of the above-mentioned prior art consists essentially in that the cages with light material enclosed thereill, wheii cage enclosure has to be made, by iaserting transversally a metallic wire so as to sew the metallic structure for all its height and width, beillg said wire inserted passing through a first net and insertillg into a light material, and being said wire flexible ald thus susceptible to change of directioll thereof, it cannot be positiojied parallel to the inserting point in the desired positions for being further secured on the second net by means of electric weldiiig and further sheared and electric welded on the first net, the result thus being a structure entirely different from the characteristics for which it has been carried out, being not aligned and impairillg safety and solidity of the prefabricated structure. A further drawback consists in that at present the elements used inside the cage are realized in blocks for permitting wire inserting through net, iluler material and further net, through junctioll points, without wire being deviated just because it does not meet with resistance while inserting, thus making the operator to positioji the wire only where it is possible, decreasing resistance of the structure and impairilig colulectiotl between net and net. A further disadvantage consists in that, in other solutiolls, cage formillg ajid insulating material insertillg are two distillct operations, so that working times are double and therefore otlerous. The invention as claimed is intellded to remedy the above-mentiolled drawbacks. It solves the problem providing a guide device for inserting a wire, such as a steel wire, through a metallic net, a light structure ald a further metallic net, in order to cage the light iluler structure making the whole, i.e. the two nets and the inner structure, wiitedly integral between them in a single solution. The advantages offered by this invelltioll are mainly that production times of prefabricated material will be collsiderably reduced with consequellt cost decreasing, and moreover, due to the structure compactedlless, a highly safe prefabricated material will be obtained with unchanged characteristics, lightness, manageability, etc.. One way of carryillg out the invention is described in detail below with reference to one drawing which illustrates one preferred embodiment, in which: Figure 1 is a frotlt sectional view of the guide device at the end of its forward travel for positioning wire inside the light structure and on the respective nets; Figure 2 is an example of the guide device. As shown in the above figures, the guide device in accordance with the invention is referred to with (A), while the wire is referred to with (B). In detail, illstallation of the device is carried out as follows: : - oll a horizontal surface two nets, 1 and 2 respectively, are advallced, placed at the sides of the preformed or injected foamed iller structure (C,C'), as far as reaching the elld therof, where said two nets will stop. Theii the guide device (A) will be laterally advanced, positioning on the predermiiied insertillg point oji the first iiet 2' for continuing its travel, due to its being tubular with few millimetres thicklless, hollow inside for permitting further sliding of the wire and having a characteristically pointed extremity 3, through a light structure (C,C'), without tearings as the device due to the special shape thereof can separate elastically the fibers, slidillg parallel to the starting point 2', without ally deflections, unless desired, finally positionillg with the extremity 3 oji the net 1'. A wire (B) will be also advallced inside the device (A), free to slide in the interior thereof, without ajjy obstacles, finally placillg in the desired final position of (B'). At this moment the wire (B) will be secured at point (B') by means of electric welding. The device (A) will then return to startillg position releasing elastically the fibers which will compress on the inserted wire making same integral with the structure and allowing shearillg of the wire (B) oji the net 2' for being then secured by electric welding. Obviously this operation will be repeated several times until the prefabricated cage will be finished. Of course, changes and modifications can be made without departing from the spirit or scope of the invention as defined in the appended claims.

Claims: Claims: 1. Guideway device alld method for guiding a connection steel-wire through a light parallel structure ellclosed between opposed steelnets, characterised in that said guide device (A) is inserted through a first metallic net (2) into a light structure (C, C') without tearing same, separating elastically the fibers, for then stopping on the net (1), letting the wire (B) to slide free in the interior thereof, fillally positiollillg to the other side (B') where it will be secured to the net (1') in which, when the guide device (A) will be retracted to starting position, the fibers elastically separated during crossing will be released locking the wire and makillg same integral with the structure. 2. A guideway device as claimed in claim 1, characterised in that it consists in a guide (A) which call slide along an ideal positioning line of a wire (B) in order to positioniiig said wire in a predetermined point without challges of direction, and where said wire is made integral with the structure. 3. A guideway device as claimed iii claims 1 and 2, characterised in that the etld portion thereof (3) has a generally pointed shape, like the point of a needle. 4. A guideway device as claimed in claims 1, 2 alld 3, characterised in that said device has a generally cylindrical tubular shape. 5. A guideway device as claimed in claim 4, characterised in that said device is hollow inside for permitting sliding of a wire (B) free from any obstacles.

Inventors: GAVA, GINO
Applicants: GAVA, GINO
Application year: 1984
Main classification: E04C2
IPC codes: E04C2