ES2269647T3 - ARMOR IN CELOSIA. - Google Patents

Abstract

Lattice reinforcement comprising a pair of beams (1) connected by a cross-linked structure comprising a plurality of diagonal bars (2), one or both beams consisting of a metal section provided with a longitudinal groove (1b) directed towards the diagonal bars (2), said groove (1b) comprising three walls and having a substantially rectangular cross-section, the width of said groove (1b) being substantially identical to the width of the diagonal bars (2), so that the extremities of they can be introduced and secured in the groove (1b), the walls of said metal section having a substantially constant thickness, the walls of said groove (1b) having substantially the same thickness as the other walls of the metal section, characterized by the fact that the walls of said metal section form a single central cavity around said groove (1b) whose walls are different from the s other walls of the metal section.

Description

Lattice armor.

The invention relates to an armor of lattice, and particularly a lattice armor that can be used as a crossbar or arch portion in the support structures of movable envelopes.

Known lattice reinforcements comprise a pair of horizontal beams connected by a structure crosslinked comprising a plurality of diagonal bars. From In general, the beams and diagonal bars are made of metal sections welded to each other. Particularly one or several beams include substantially metal sections rectangular in which case it is necessary to weld to the even beams of Vertical metal plates or U-shaped portions of sections metal to contain laterally and properly weld the extremities of the diagonal bars, thus reinforcing the armor. Obviously, the welding of these reinforcement members to the beams increases the manufacturing time and cost of the armor while reducing its aesthetic value.

Patent FR-2226523 discloses a armor comprising a pair of beams that are connected mutually by a plurality of diagonal bars and consist of a sectional bar with thin walls and a central nerve of reinforcement in which two longitudinal grooves have been made for the longitudinal bars Due to the central nerve comprising the longitudinal grooves, said section bar can be made only by extrusion of a material that is allowed to work easily, by example aluminum, so that the armor is relatively expensive.

DE-196120638 patent discloses an armor having a central cavity and a longitudinal groove. However, these beams can also be manufactured by extrusion since that its walls are not joined continuously. Particularly, the side walls of the longitudinal groove coincide with a portion of the outer side walls of the beams. For this reason, the latter cannot be made of a steel plate bent with a forming machine to reduce the costs of manufacture and increase the mechanical strength of the armor, especially if the beams have a symmetrical profile quadrilateral.

Therefore, it is an object of the present invention is to provide armor that is free of these disadvantages This object is reached by armor whose main features are revealed in the first claim and other features are disclosed in the claims. consecutive.

Thanks to the particular longitudinal groove of the beams, the diagonal bars can be introduced directly and attached to them, so that the armor of according to the present invention can be obtained in a manner simple and resistant without the help of said reinforcement members. Additionally, with this device, diagonal bars can be cut simply at right angles since its union with the beams are made through the side walls, reducing by therefore the surfaces to be welded to each other, with the reduction consistent time and manufacturing cost.

Another advantage of the armor according to the This invention is its best aesthetic appearance thanks to concealment of the extremities of the diagonal bars.

More advantages and features of armor according to the present invention will be disclosed to those experts in the art by the following detailed and non-limiting description of an embodiment thereof with respect to the attached drawings, in which:

Figure 1 shows a partial front view of the lattice armor according to said embodiment; Y

Figure 2 shows a side view enlarged in cross section of figure 1 according to the plane II-II of figure 1.

With reference to said figures, you can note that the armor according to the present invention it comprises in a known way a pair of beams 1 connected by a crosslinked structure comprising a plurality of bars diagonals 2, arranged in such a way that they form a series of triangular openings.

According to the invention, one or both beams 1 consist of metal sections that have a cross section,  for example with a substantially rectangular shape, with the surface 1a opposite to the diagonal bars 2 provided with a longitudinal groove 1b having a cross section substantially rectangular. The width of slot 1b is substantially identical to the width of the diagonal bars 2 of so that the extremities of the latter can be introduced into the slot 1b and easily fasten in it, particularly by means of welds 3 or bolts passing through holes formed along axis 4.

In the present embodiment, the section transverse of the diagonal bars 2 is substantially rectangular but it is evident that in other embodiments it could be different, for example U-shaped. Additionally, in this realization of the angles between a slash 2 and the bars Adjacent are substantially straight while the angles between bars 2 and beams 1 can change according to the specific strength needs.

In other embodiments of the invention, the beams 1 might not be straight but rather curved, so that the resulting armor is also curved and can be used as portion of a semicircular arch for wraps, for example of sports fields or protective wraps.

Additions and / or modifications of the realization described and illustrated above can be done by those art experts, but without departing from the field of invention.

Claims (7)

1. Lattice reinforcement comprising a pair of beams (1) connected by a cross-linked structure comprising a plurality of diagonal bars (2), one or both beams consisting of a metal section provided with a longitudinal groove (1b) directed towards the diagonal bars (2), said groove (1b) comprising three walls and having a substantially rectangular cross section, the width of said groove (1b) being substantially identical to the width of the diagonal bars (2), such that the ends thereof the walls of said metal section having a substantially constant thickness, the walls of said groove (1b) having substantially the same thickness as the other walls of the metal section, characterized by the fact, can be introduced and secured in the groove (1b) that the walls of said metal section form a single central cavity around said groove (1b) whose walls are different from the other more walls of the metal section. 2. Lattice reinforcement (1) according to the preceding claim, characterized in that the side walls of the longitudinal groove (1b) are adjacent to a wall (1a) of the metal section directed towards the diagonal bars (2). 3. Lattice reinforcement (1) according to claim 1 or 2, characterized in that said metal section has a quadrilateral profile with three substantially flat walls and the fourth wall (1a) directed towards the diagonal bars (2) centrally interrupted by the longitudinal groove (1b). 4. Lattice reinforcement (1) according to one of claims 1 to 3, characterized in that the ends of the diagonal bars (2) are secured in the longitudinal groove (1b) of the beams (1) by welding. 5. Lattice reinforcement (1) according to one of claims 1 to 3, characterized in that the ends of the diagonal bars (2) are fastened in the longitudinal groove (1b) of the beams (1) by bolts. 6. Lattice reinforcement (1) according to one of the preceding claims, characterized in that the angles between a diagonal bar (2) and adjacent bars are substantially straight. 7. Lattice reinforcement (1) according to one of the preceding claims, characterized in that the beams (1) are curved.