ES2689659T3 - Street post - Google Patents

Abstract

An impact absorbing deformation street pole (1) extending substantially along a longitudinal direction (8), wherein the shock absorbing deformation street pole (1) bends upon impact with a vehicle and the part The bending of the street pole with shock absorbing deformation crushes the vehicle, characterized in that the height of the first bending portion (18) of the street pole with shock absorbing deformation is chosen such that upon impact the street pole with shock absorbing deformation allows for better control of G-forces and the bent portion of the vehicle crushing shock absorbing deformation street pole does not substantially strike the roof of said impacting vehicle and where the shock absorbing deflection street pole impacts (1) comprises an elongated extension (17) disconnectably connected at a predetermined height to said first part (18) of the street pole with deformation n shock absorber (1) so that upon impact with the first part (18) of the street post with shock absorbing deformation (1), the elongated extension (17) is disconnected from the street post with shock absorbing deformation ( 1).

Description

5

10

fifteen

twenty

25

30

35

40

Four. Five

fifty

55

DESCRIPTION

Street post

This invention is related to impact absorbing street poles according to the preamble of the first claim.

Impact absorbing street poles are well known in the art. Design engineers are now certainly looking more and more at other ways to improve the safety of vehicle occupants by focusing on the advantages that can be achieved by improving the impact behavior of street furniture, for example by reducing the effects of a vehicle-street post impact. In this context, impact absorbing street poles have been developed, that is, a category of poles that are constructed to at least partially absorb the impact of a vehicle with such a post. An example of this type of impact absorbing street post is known from US 2010/0107521 A1. Document US 2010/0107521 A1 describes a street post with impact-absorbing deformation that is formed such that the impact of a vehicle with the post deforms, that is, flattens, an area of the post that is directly contacted by the vehicle initially. The impact can then extrude other sections of the post above and below this area of the post as the vehicle moves forward after the initial impact with the post and ultimately the post can be folded (in effect, collapsed) on the roof of the vehicle. Deformation and subsequent extrusion absorb impact energy. Bending the pole on the roof of the vehicle confines the vehicle. However, it can happen that the post with the impact of the vehicle, when bending over the roof of the vehicle, actually crushes the roof and can for example injure the occupants of the vehicle.

Another impact absorbing street post is known from WO2008 / 151862 A1.

Street posts according to the prior art therefore still represent a substantial risk for the occupants of a vehicle during the impact of the vehicle with the street post.

Thus there is a need for an impact absorbing street pole for which safety features can be improved.

For this, the street post comprises an elongated extension connected in a disconnectable manner at a predetermined height to a first part of the street post so that upon impact on the first part of the street post, the elongated extension is disconnected from the street post .

The inventors have found that providing an impact absorbing street post with an elongated extension, disconnectablely connected to the first part of the post substantially reduces the risk of vehicle occupants being crushed by the bent part of the impact absorbent street post, more specifically on a street post with shock absorbing deformation, during the impact of the vehicle with the street post. With impact it is preferably understood in the context of the present invention an impact with a vehicle of approximately 900 kg at for example a speed of 35 km / h and also a higher speed of 50 km / h, 70 km / h or 100 km / h , according to European standard EN 12767/2007 or American standard NCHRP350 or MASH established at substantially the same speeds, for example a speed of 30 km / h and also a higher speed of 50 km / h, 70 km / h or 100 km / h, but with heavier vehicles. Upon impact, the street post with shock absorbing deformation absorbs at least part of the energy created during the impact, reducing the deformation of the vehicle upon impact and resulting in a less aggressive drop in acceleration with respect to time for occupants of the vehicle and the elongated extension are disconnected from the street post so that for example the knife effect is reduced, where the street post bends and the folded part of the street post crushes the vehicle such as for example in street poles With shock absorbing deformation. As the bent part of the street post is reduced in length compared to the street posts with deformation of the prior art, both the length of the post and its momentum when the vehicle hits are reduced, limiting damage to the vehicle and the risk of injury for the occupants of the vehicle.

The combination of the impact absorbing street post with an elongated extension improves the shock absorption capacity of the assembly and allows it to better control the G forces upon impact. Additionally, the combination according to the invention allows the inventors to lift taller and more robust structures for use in physical equipment beside roads.

According to the present invention, the height of the first part of the street post is chosen so that upon impact, it allows to improve the control of the G forces upon impact and, when applied to a street post with impact-absorbent deformation, the Bent part of the street post that crushes the vehicle does not substantially hit the roof of the vehicle. It has been found that such lengths also reduce the risk of injury to the occupants of the vehicle that hits the street post.

According to embodiments of the street post according to the invention, the height of the first part of the street post is smaller or larger than the height of the elongated extension, according to the desired configuration.

According to preferred embodiments of the street post according to the invention, the elongate extension comprises a body

2

5

10

fifteen

twenty

25

30

35

40

Four. Five

fifty

55

cylindrical, for example a hollow cylindrical body, which extends around the longitudinal direction along a circumferential direction.

This type of arrangement of the elongated extension makes the construction of the same easier since it can be manufactured for example by folding a sheet of a foldable material around a given axis. If the cylindrical body is hollow, it reduces the risk that the elongated extension, when disconnected from the first part when impacting a vehicle, can injure people or damage, for example, vehicles. It also allows for example to pass electrical cables or any other wires or conduits through the hollow cylindrical body, especially if such wires come from a first part of the street post, which comprises a hollow cylindrical body where the wires are present.

According to preferred embodiments of the street post according to the invention, an accessory, for example any one or more of a lamp, a traffic signal, a street signal, a traffic light, is connected to the elongated extension. Naturally, any accessory can also be connected in other locations, for example in combination with the accessory connected to the elongated extension. For example, an additional accessory can be connected in a rather lower location, for example a traffic signal at a height where traffic participants can easily read the signal, for example car drivers through the windows of their car, by example a few meters above the road.

This type of accessory can be fixedly connected to the elongated extension and releasably connected to the street post along with the elongated extension when a vehicle hits the first part of the street post, thereby preventing a relatively heavy object with a Relatively large moment impacts the vehicle and may injure its occupants or damage property around the street post, especially when the street post is a street post with impact-absorbent deformation.

According to preferred embodiments of the street post according to the invention, the circumference of the first part of the street post is smaller or larger than the circumference of the elongated extension at the predetermined height according to the desired configuration.

Thus, the elongated extension can easily be connected to the first part of the street post, especially if the circumference of the first part of the street post is smaller than the circumference of the elongated extension at the predetermined height and the upper part of the first part of the street post fits tightly in the elongated extension, causing an increase in stability of the whole of the first part of the street post and elongated extension and in some cases supplementary connection means can be unloaded. Additionally, this type of connections prevents the falling water, such as rain, from entering the street post.

According to preferred embodiments of the street post according to the present invention, the first part of the street post comprises a cylindrical body that extends around the longitudinal direction along a circumferential direction.

This type of arrangement of the first part of the street post, in a manner similar to that for the elongated extension, makes the construction of the same lighter and easier. The arrangement of the first part of the street post comprising the body reduces the impact force of a vehicle, because such a post can absorb part of the impact energy and deform, making it a street post with absorbent deformation. of impacts, and could reduce the risk of injuring people and / or damaging eg vehicles. If the cylindrical body is hollow, it also allows for example to pass electrical cables or any other wires or conduits through the cylindrical body.

According to preferred embodiments of the street post according to the present invention, the cylindrical body is hollow and the cylindrical body of the first part comprises at least one overlap of a first and a second edge of a circumferential side wall that forms the hollow cylindrical body, the Hollow cylindrical body comprises fastening means for interconnecting the first and second edges, the overlay has a length that extends substantially parallel along the longitudinal direction.

The inventor has found that the first part of a street pole that has this type of overlap allows the first and second edges to be interconnected by a wide variety of different fastening means such as welding, soft welding, bolts, rivets, screws, staples , glue, etc. The street post according to the invention with this type of first part is also aesthetically attractive and is safer for people passing through the street post since it does not have an overhang.

Another option for holding adjacent metal sheets known in the state of the art is to bend metal sheets so that adjacent edges touch each other collinearly. Interconnecting adjacent edges that play collinearly is however difficult and, in order to achieve sufficient interconnection of the first and second edges, it is mainly limited to welding. For example, in this interconnection, bolts cannot be used directly. When the metal sheets are coated with zinc, for example by galvanizing, before being bent and interconnected to form the street post, adjacent edges can no longer, or at least with greater difficulty, be welded together. So instead, adjacent songs that play collinearly have to

5

10

fifteen

twenty

25

30

35

40

Four. Five

fifty

55

be welded together before coating with for example zinc and can only be galvanized after having welded together the first and second edges, which is more difficult and therefore more expensive. When the street posts comprise a first part comprising an overlap of the first and the second edge, this problem can be solved using other means of attachment other than welding, such as, for example, bolts, nails, rivets, screws or the like, since the fastening means of the first part of the street post according to the present invention are no longer limited to welding.

According to preferred embodiments of the street post according to the invention, the side wall and the clamping means are provided to split opening along the overlapping by breaking apart the clamping means when impacting at an impact location in the first part of the post. street, the hollow cylindrical body, which is provided at the place of impact.

The first part of this type of street post is designed to absorb an impact of for example a vehicle, so that the kinetic energy of an object, for example a vehicle, which impacts on the street post is preferably absorbed substantially by the first part of the street post by deformation of the first part of the street post, making the street post a street post with shock absorbing deformation, due to impact instead of for example deformation of the object, which is, in case for example a vehicle, dangerous for the occupants of the vehicle. It has been found that accidents involving this type of street post impacted by a vehicle have a lower mortality rate than accidents involving a street pole that does not absorb the impact energy with the vehicle. A street post that has the ability to absorb a significant amount of energy from an impact with a vehicle is generally called a passive safety street post.

A street pole designed to absorb the energy of an impact with a vehicle is described for example in document FI94890B. The street post according to FI94890B, however, does not comprise the overlapping of the street post of the current preferred embodiment, which has a width that extends substantially along the circumferential direction, but instead has a bent flange inwardly, as described above. When a vehicle hits the street post according to document FI94890B, the fastening means are provided to break away from the overlap and the overlap as an additional consequence is splitting open. However, it has been found that the stiffness of the street post according to FI94890B generally remains too large during impact with the vehicle so that the street post absorbs an insufficient amount of energy, which increases the amount of energy it has. to be absorbed by the car, causing an increased risk of mortality and / or injuries to vehicle occupants.

The superposition of the first part of the street post of the current preferred embodiment, however, allows a better absorption of kinetic energy from the vehicle. Without pretending to be limited to the theory, the inventor believes that this is caused by the direction of the width of the overlay, which is substantially along the circumferential direction. It has been found that the impact of the vehicle on the place of impact causes the hollow cylindrical body to collapse in the direction of impact, making the street post a street post with shock-absorbing deformation. As a consequence, a first part and a second part of the side wall of the hollow cylindrical body, the second part opposite the first part along the direction of impact are pushed together in the direction of impact and a third and a quarter of The side wall of the hollow cylindrical body, the fourth part opposite the third part along a direction substantially perpendicular to the direction of impact, is pushed away from each other. The relative movement of the first, second, third and fourth part causes the two edges to move in opposite directions along the width direction of the overlap so that the first part of the street post is split in the longitudinal direction. along the overlap breaking apart the clamping means. For example, a similar effect can be seen in WO2008151862.

The inventor has found that this type of opposite movement of the edges causes the stiffness of the first part of the street post to fall significantly upon impact, which increases the amount of energy that can be absorbed by the street post of the present invention. Without pretending to be limited by theory, the inventor believes that the opposite movement of the edges along the width direction of the overlap causes a shear effect that causes a better break apart from the fastening means.

The inventor has also found that the stiffness of the first part of the street post of the present invention that has not received the impact remains substantially the same. The street post according to the present invention in other words makes it possible to significantly reduce the stiffness of the street post during impact while maintaining the stiffness of the street post before impact.

According to more preferred embodiments of the street post according to the present invention, the fastening means are rivets.

The inventor has found that by interconnecting the two edges with rivets, the interconnection of the two edges becomes increasingly easy and even edges of for example galvanized steel can be interconnected. In addition, although the rivets provide sufficient stiffness to the first non-impacted part of the street post, the rivets are also more easily broken by the opposite movement of the edges along the width of the overlap during impact so that the amount of energy absorbed by the first part of the street pole is increased

5

10

fifteen

twenty

25

30

35

40

Four. Five

fifty

even more, improving the passive safety of the street pole.

Other details and advantages of the street post according to the invention and the method of positioning the street post according to the invention will become apparent from the attached figures and description of preferred embodiments of the invention.

Figure 1 shows a preferred embodiment of a street post according to the invention.

Figure 2 shows a different embodiment of a street post according to the invention.

Figure 3 shows a cross section of a preferred embodiment of the street post according to the invention.

Figure 4 shows a street post according to the prior art that has received the impact of a vehicle.

Figure 5 shows a cross section of a different embodiment of the street post according to the invention.

Figures 6a-6d show successively the effect of a vehicle impacting on a street post according to the invention during the impact of the vehicle with the street post.

A street post 1 comprising an elongated extension 17 connected to a first part 18 of the street post 1 according to the invention is shown in Figures 1 and 2. The first part 18 of the street post 1 shown in Figures 1 and 2 It is fixed to the ground. The first part 18 of the street post 1 can be fixed to the ground in any manner known to the person skilled in the art. The first part 18 of the street post 1 can be embedded, for example, in the ground, bolted to the ground, etc. When fixed to the ground, the street post 1 preferably extends in a substantially erect, preferably vertical direction, as shown in Figure 1. The street post 1 however can also be provided to be attached to, for example, the wall of a building or something similar, extending in a substantially horizontal direction.

The street post 1 shown in Figures 1 and 2 extends substantially along a longitudinal direction 8. The longitudinal direction 8 extends between a first and a second end.

The first end is provided to be subjected to a substrate. In Figures 1 and 2, the substrate shown is substantially horizontal. The substrate however can also extend substantially vertical or any other direction. As discussed above, the substrate for example can be the floor, a wall of a building, etc.

The first end can be provided for example to be embedded in the ground. The first end can also be provided to be placed at least partially in cement. However, other known ways can be used to attach the first end to the substrate such as for example bolting the first end to the substrate.

The first end preferably comprises means for allowing electrical cables to enter the street post 1, preferably the first part 18 of the street post 1, for example to provide electricity for lighting or any other electrically powered means. For this, the first end comprises, for example, an opening leading into the street post 1, preferably the first part 18 of the street post 1. This, however, is not critical to the invention and the electric cables, for example, are also they can provide along the outside of street post 1.

The second end is provided to be provided with means such as, for example, lights 19, street signs, traffic signs, traffic lights, addresses, advertising signs, etc. The second end, for example, may be provided with one, two, three, four or even more horizontally folded arms, each arm comprising lighting means, creating a lighting pole that can be used along streets or highways to illuminate the streets or highways. The second end is part of the elongated extension 17.

The street post 1 may have any shape and dimension that are considered appropriate by the person skilled in the art. The longitudinal direction 8 of the street post 1 shown in Figures 1 and 2 is substantially straight. However, the street post 1 for example can be folded along its longitudinal direction 8, for example when it is provided to be mounted on an upright substrate.

The street post 1 comprises an elongated extension 17, connected in a disconnectable manner at a predetermined height to a first part 18 of the street post 1. The elongated extension 17 shown in Figures 1 and 2 comprises a cylindrical body that extends around the longitudinal direction along a circumferential direction. The circumference of the elongate extension 17 may be smaller, equal to, or greater than the circumference of the first part 18 of the street post 1 to which it is connected. Figures 1 and 2 show that an accessory 19 is connected to the elongated extension 17. The accessory can be for example a street lamp, a traffic light, a traffic signal or an announcement signal but is in no way limited to the examples mentioned in this report.

5

10

fifteen

twenty

25

30

35

40

Four. Five

fifty

55

The street post 1, preferably the first part 18, comprises a cylindrical body 6. The cylindrical body 6 extends around the longitudinal direction 8 along a circumferential direction 9. A cross section of this type of cylindrical body 6 is shown for example in figures 3 and 5.

The cylindrical body 6 can be provided anywhere along the longitudinal direction 8 of the street post 1, preferably of the first part 18. The street post 1, preferably the first part 18 can comprise for example a first longitudinal section which is solid or hollow, for example, wood, plastic, etc., and a second longitudinal section that is formed by at least one cylindrical body 6. The first and second longitudinal section can be provided anywhere along the length of the longitudinal direction 8 so that the first longitudinal section is provided near the first end and the second longitudinal section is provided near the second end, but preferably the first longitudinal section is provided near the second end and the second longitudinal section is provided near the first extreme. It is preferred that the street post 1, preferably the first part 18 is made of at least one cylindrical body 6. Figure 2 shows for example the first part 18 of the street post 1 made of subsequent different cylindrical bodies 6. Preferably, the First part 18 of the street post 1 however is made of a single cylindrical body 6, as shown in Figure 1.

The inventor has found that when the street post 1, preferably the first part 18, is made of a single cylindrical body 6, preferably a hollow cylindrical body, the street post 1 can be easily made.

The cylindrical body 6 can be made of any material, such as plastic, wood, metals such as for example aluminum, steel, stainless steel, galvanized steel, etc.

The cylindrical body 6 can have any shape and dimensions deemed appropriate by the person skilled in the art.

Preferably the dimensions of the cylindrical body 6 are determined substantially by its length and its diameter 12. The length of the cylindrical body is measured along the longitudinal direction 8 of the street post 1, preferably the first part 18, while the diameter 12 It is defined as the diameter of an arc that defines the circumferential direction 9 of the cylindrical body 6, as shown in Figures 3 and 5.

The diameter 12 of the cylindrical body 6 can be determined by one skilled in the art.

The shape of the cylindrical body 6 is substantially determined by the shape of the cross section of the cylindrical body 6. Two examples of cross-sectional shapes, polygonal and round, are shown respectively in Figures 3 and 5. However, any other shape is possible. of the cross section and can be determined by one skilled in the art such as, for example, a regular or irregular polygon having 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 or even more vertices 13, an arched shape such as an ellipsoid, etc.

The cross section of the cylindrical body 6 may change along the longitudinal direction of the cylindrical body 6. The area of the cross section for example may become larger or smaller along the longitudinal direction or may remain substantially constant.

Preferably, the cross-sectional area of the cylindrical body 6 becomes smaller in a direction from the first end of the street post 1, preferably the first part 18, towards the second end of the street post 1, as shown in the Figures 1 and 2, more preferably, but not essentially, when the cylindrical body 6 has a polygonal cross section.

Preferably, the cross-sectional area of the cylindrical body 6 is substantially constant along the longitudinal direction 8 of the street post 1, preferably the first part 18, more preferably, but not essentially, when a round cross-section is used as It is shown in figure 3.

The cylindrical body 6 of the street post 1, preferably the first part 18 of the street post 1, comprises a circumferential side wall 7 forming the hollow cylindrical body 6. The circumferential side wall 7 comprises a first 3 and a second edge 4 which they overlap to form an overlay 2. A top view of the overlay 2 is shown for example in Figures 3 and 5. The overlay 2 has a length 10 that extends substantially along, preferably parallel, the longitudinal direction 8, as shown in Figures 1 and 2. The length 10 of the overlay 2 however can be extended along any possible direction that extends substantially along the longitudinal direction 8.

The circumferential side wall 7 can be a single piece or it can be made of different pieces. When the hollow cylindrical body 6 is made of a multitude of pieces, the pieces can be joined using any method known in the art, such as welding, soft welding, bonding, stamping, bolting, screwing, rejection, etc.

The overlay 2 can be positioned at each location along the circumferential side wall 7. However, when the hollow cylindrical body 6 has a polygonal cross section, the overlay 2 is preferably provided between two adjacent vertices 13 of the polygonal cross section . More preferably overlap 2 is provided substantially equidistant from the two adjacent vertices 13. Overlay 2

5

10

fifteen

twenty

25

30

35

40

Four. Five

fifty

55

however, it can be provided at each location that is considered appropriate by the person skilled in the art, such as, for example, at or near a vertex 13.

Although a single overlay as shown in Figures 3 and 5 may be sufficient for conceived application of the street post 1, this is not critical to the invention and the street post 1 may also have a plurality of overlays 2. For example, street post 1 may have two, three, four, five, six, seven, etc. overlays 2 depending on for example the dimensions of the street pole 1. It has been found that by providing multiple overlays, the impact absorption properties can be better controlled. Especially when street poles having a large relative diameter are provided, it has been found that although the increase in diameter increases the strength of the street post 1, the plurality of overlays however can provide the desired impact absorption properties.

When a plurality of overlays 2 is provided, preferably, the overlays 2 are distributed substantially uniformly over the circumference of the street post 1 to provide substantially homogeneous impact absorption properties. For example, when the hollow cylindrical body 6 has a polygonal cross-section, the overlay 2 is preferably provided between adjacent vertices 13 leaving, for example, the same, or for example substantially the same, number of vertices 13 between overlays 2. Thus by For example, when the hollow cylindrical body 6 is a regular convex polygon polygon, it has nine vertices 13 and the number of overlays can be, for example, three, with 3 vertices 13 or two sides between vertices 13 between overlays 2.

The hollow cylindrical body 6 comprises fastening means 5 for interconnecting the first 3 and second 4 edge of the circumferential side wall 7. Any fastening means 5 known to those skilled in the art can be used, for example bolts, nuts, rivets, screws, nails, staples, glue, solder, soft solder, etc.

When the superposition 2 of the first 3 and the second 4 edge causes one of the first 3 and the second 4 edge to be pressed in the other edge 3, 4, for example due to a resilient force that remains after folding the edges in the desired configuration overlapping, the friction caused by the pressure of one edge in the other can cause a sufficient interconnection of the first 3 and the second 4 edge to be achieved. In that case the fastening means 5 are the first 3 and second 4 cooperating edge and bolts, nuts, rivets, screws, nails, staples, glue, welds, soft welding, etc. are not necessary. additional. In this case, breaking apart the clamping means 5, according to preferred embodiments of the present invention, means that friction between the first 3 and the second edge 4 is overcome and that the first 3 and the second edge 4 are allowed to move in opposite directions. along the width direction of overlay 2.

The fastening means 5 are preferably provided along the entire length 10 of the overlay 2, for example at regular distances when for example nuts, bolts, screws, nails, staples or something similar are used or preferably along the length of the entire length 10 of the superposition 2 when, for example, first 3 and second 4 cooperating edges, glue, welds, soft solders, or the like are used. However, other configurations of the clamping means 5 are possible.

The overlay 2 has a width 11 that extends substantially along the circumferential direction 9. The first 3 and the second 4 edge of the circumferential side wall 7 in other words overlap each other along the circumferential direction 9. The width 11 is shown for example in Figures 1 and 2.

The width 11 of the overlay 2 can be determined by one skilled in the art. Preferably, the width 11 of the overlay is determined based on the fastening means 5 and / or the required strength of the street post 1. For example, when rivets, bolts, nails, screws, staples, etc. are used. in order to interconnect the first 3 and the second 4 edge of the cylindrical body 6, the width 11 must be sufficient to receive the fastening means 5 and to offer a sufficient interconnection of the first 3 and the second edge 4. When other fastening means 5 are used such as glue, welds, soft welds, etc. it is necessary to adapt the width 11 to the interconnection characteristics of the fastening means 5 so that it is necessary to increase the width 11 or it can be decreased in order to provide a sufficient interconnection of the first 3 and the second edge 4.

The width 11 for example can be as small as 1 mm for some types of fastening means 5 or the width 11 can extend up to for example substantially the entire width of the sides between the vertices 13 and / or more than 100% of the circumference of the hollow cylindrical body 6 in which case the side wall 7 comprises at least two layers wrapped around the longitudinal direction of the street post 1, preferably of the first part 18 of the street post 1.

The inventor has found that an increase in width 11 of the superposition 2 increases the friction between the first 3 and the second 4 edge of the superposition 2 so that additional fastening means 5 such as bolts, nuts, rivets, can be avoided. screws, nails, staples, glue, solder, soft solder, etc. In addition, the increase in width of the overlay 2 allows the fastening means 5, if provided for example differently to the street post 1, to be positioned in a staggered position relative to each other along the longitudinal direction of the street post one.

5

10

fifteen

twenty

25

30

35

40

Four. Five

fifty

55

The width 11 of the overlay 2 can be substantially constant along the longitudinal direction 8 of the street post 1, especially if it is expressed, for example, as a percentage of the sides between two vertices 13, preferably of the first part 18 of the post lane 1. This, however, is not critical to the invention and the width 11 may change along the longitudinal direction 8 of the street post 1, preferably of the first part 18 of the street post 1.

The hollow cylindrical body 6 is preferably made of a foldable material such as metal. In this way the hollow cylindrical body 6 can be made by folding a sheet 14 of the foldable material, preferably a metal sheet, to the desired shape of the desired cross-section. However, as described above any other material is possible and the hollow cylindrical body 6 for example can also be cast.

In case the hollow cylindrical body 6 has a polygonal cross section, more preferably a regular polygonal cross section, as shown in Figure 1, the hollow cylindrical body 6 is preferably made by folding at least one sheet 14 of the foldable material at along longitudinal fold lines that form vertices 13 of the polygonal cross section. Preferably, these fold lines are created by pushing a longitudinal edge towards and / or along the sheet of foldable material. However, any other way of making the cylindrical body is possible.

For example, the cylindrical body 6 in this case has an odd number of vertices and overlay 2 is provided between two adjacent vertices 13, the last fold line that is created is the fold line opposite to overlay 2. The inventor has found said fold of the sheet 14 of foldable material allows the longitudinal edge to be retracted more easily, after being pushed towards and / or along the sheet 14 of foldable material in order to create the fold line, between the first 3 and the second 4 edge before creating overlap 2. However, the cylindrical body 6 can also comprise an even number of vertices.

In case the cylindrical body 6 has a round cross section, the cylindrical body 6 is preferably made by winding at least one sheet 14 of foldable material, preferably metal.

Although the cylindrical body 6 is preferably made of a single folded sheet 14, as shown in the figures

3 and 5, the cylindrical body 6 can also be made of several bent sheets 14 forming the different parts of the circumferential side wall 7, as discussed above.

Preferably, the side wall 7 and the clamping means 5 are provided to split open along the overlap 2 by breaking apart the clamping means 5 when impacting at an impact location 15 on the street post 1, the cylindrical body 6 , which is provided at the place of impact 15.

Preferably, the side wall 7 and the clamping means 5 are provided to split open along the overlap 2 by breaking apart the clamping means 5 upon impact with a vehicle 16. The vehicle 16 can be any vehicle 16, preferably motorized, known to the person skilled in the art, such as a car, truck, motorcycle, etc.

This is especially beneficial for street posts 1, preferably first parts 18 of the street posts 1 that are provided to be fixed to the ground since such posts 1 is generally provided alongside roads where traffic passes through the street post. one.

With impact in the context of this application, for example, an impact is caused when this type of vehicle 16 leads to the first part 18 of the street post 1 for example at more than 0 km / h, more than 5 km / h, more 10 km / h, more than 20 km / h or more than 30 km / h or even greater. However, the side wall 7 and the fastening means 5 must be such as to withstand normal forces acting in the first part 18 of the street post 1 such as wind gusts, relative small impacts caused for example when parking vehicles , etc. when the first part 18 of the street post 1 has not received the impact of the vehicle 16.

Examples of a vehicle impacting on this type of first part 18 of the street post 1 are shown in the figures

4 and 6a - 6d.

When it hits the first part 18 of the street post 1, the first 3 and the second 4 edge of the side wall 7 move away from each other as described and the fastening means 5 break away from the edges 3, 4 When the impact is large enough, the first and second edges 3, 4 move further away until the subsequent fastening means 5 are broken. This process is repeated until the impact has been fully absorbed. Due to the impact, the first and second edges 3, 4 can continue moving away from each other until the circumferential side wall 7 is fully deployed and becomes substantially flat.

Preferably, the first part of the street post 1 is provided so as not to break away from its substrate upon impact but to remain fixed to its substrate, allowing the impact energy to be absorbed until the speed of the vehicle 16 impacting on the post lane 1 has been significantly reduced. Therefore, after the impact of the vehicle 16 with the first part 18 of the street post 1, the risk of the vehicle 16 impacting an additional obstacle after impacting the first part 18 of the street post 1 is significantly reduced. end of

To achieve this type of connection of the first part 18 of the street post 1 to the substrate, the first end is preferably embedded in the cement, as discussed above. However, this is not critical to the invention and any other connection of the first part 18 of the street post 1 to the substrate can be used.

A vehicle 16 that impacts on the street post 1 causes the first hollow cylindrical body 6 to be impacted in the first part 18 of the street post 5, then opening at the place of impact 15. Subsequently, when the impact is sufficiently large, the impact site 15 moves along the longitudinal direction 8 of the street post 1 as shown in Figures 6a-6d so that a part of the first part 18 of the post of lane 1 moves under vehicle 16 while another part is folded in the direction of vehicle 16, as shown in Figure 6d. By keeping the first part 18 of the street post 1 fixed to the ground, the kinetic energy of the vehicle 16 can be absorbed until the speed of the vehicle 16 is reduced. While the impact site 15 moves along the direction longitudinal 8 of the first part 18 of the street post 1, the first and second edges 3, 4 at the place of impact 15 in motion continue to move away from each other along the width direction 11 of the overlay 2 so that the fastening means are separated and the overlap 2 is split opening along the longitudinal direction 8 until the speed 15 of the vehicle 16 has been significantly reduced. Preferably, the speed of the vehicle 16 after the impact with the first part 18 of the street post 1 is reduced so that it is less than 50 km / h measured after 12 m after the initial impact.

Upon impacting a vehicle 16 on the first part 18 of the street post 1, the impact absorbing street post 1 absorbs at least part of the energy created during the impact, reducing the deformation of the vehicle 16 upon impact and resulting in a fall less aggressive in acceleration with respect to time so that the occupants 20 of the vehicle 16 and the elongated extension 17 are disconnected from the first part 18 of the street post 1, as shown in Figure 6b, so that for example it is reduced the knife effect, where the street post 1 bends and the bent part of the street post 1 crushes the vehicle 16, as for example shown in figure 4, as illustrated in figure 6d. Figure 6d no longer shows the extension 17 since it has fallen, for example, next to the vehicle 16. As for example the bent part of the street post 1 is reduced in length compared to the street posts of the prior art 25, and Only the first part 18 of the street post 1 is understood to reduce both the length of the post 1 and its moment when the vehicle 16 hits, limiting the damage to the vehicle 16 and the risk of injury to the occupants of the vehicle 16.

As the extension 17 is disconnected from the first part 18 after impact, the material of the extension 17 is less critical for the invention and can be chosen substantially by the person skilled in the art depending on the application 30 conceived. The extension for example can be a hollow part, for example a folded metal sheet, or even solid, for example wood.

The part that folds in the direction of the vehicle 16, if present, can be folded over the vehicle 16 or next to the vehicle 16. When the street post 1 is provided to fold together with the vehicle the occupants of the vehicle are even more protected.

35 The preferred deformable cylindrical body 6 must be provided at the impact site 15 in order to be able to absorb the impact energy. Therefore, the preferred cylindrical body 6 provided for splitting open upon impact is preferably provided at a height that can be impacted by vehicles 16. The cylindrical body 6 for example is provided near the substrate. However, the cylindrical body 6 preferably extends along substantially the entire length of the first part 18 of the street post 1 along the longitudinal direction 40 8, as shown in Figures 1 and 2. When the overlay 2 extends along substantially the

entire length of the street post 1, larger impacts can be absorbed since the absorption of the impact by the partition opening of the cylindrical body 6, the separation of the fastening means 5 and the deployment of the cylindrical body 6 can continue along the entire length of the street post 1. The same effect can also be achieved when the first part 18 of the street post 1 is formed of subsequent cylindrical bodies 6, as shown in Figure 2.

The cylindrical body 6 in this type of embodiment is preferably made of metal, such as for example steel, aluminum, etc. More preferably the cylindrical body 6 is made of steel.

Preferably, the side wall material 7 of the cylindrical body 6 has an elastic limit Re between 50 N / mm2-700 N / mm2, preferably 200 N / mm2-550 N / mm2, more preferably 330 N / mm2-420 N / mm2.

Preferably, the side wall material 7 has a tensile strength Rm between 50 N / mm2 - 1350 N / mm2, preferably 350 N / mm2 - 1050 N / mm2, more preferably 600 N / mm2 - 700 N / mm2 , more preferably at least 410 N / mm2, for example 410 N / mm2-700 N / mm2.

Preferably, the side wall material 7 has a minimum elongation before breakage A80 of at least 5%, preferably at least 15%, more preferably at least 20%.

Preferably, the side wall 7 has a thickness between 20 mm - 0.5 mm, preferably 10 mm - 1 mm, more preferably 5 mm - 1 mm, even more preferably 2 mm.

5

10

fifteen

twenty

25

30

35

40

Preferably, the cylindrical body 6 has a diameter 12 at the site of impact 15 between 50 mm - 500 mm, preferably 150 mm - 400 mm, more preferably 200 mm - 350 mm.

Preferably, the width 11 of the overlay 2 is at least 0.1%, preferably at most 100%, more preferably between 0.1% and 10%, most preferably between 2% and 3.5 % of the circumference of the cylindrical body 6.

A first example is a first part 18 of the street post 1 consisting of a single cylindrical body 6 having a length of about 6-7m, a diameter of about 320 mm near the first end of the first part 18 of the street post 1 and a substantially constant width 11 of the overlay 2 of 20 mm which is 2.6% of the diameter 12 near the first end.

Another example is a first part 18 of the street post 1 consisting of a single cylindrical body 6 having a length of approximately 10 m, a diameter of 208 mm near the first end of the street post 1 and a substantially constant width 11 of overlap 2 of 20 mm which is 3.06% of diameter 12 near the first end.

According to a further example, a first part 18 of the street post 1 consisting of a single cylindrical body 6 having a length of approximately 8 m from which 2 m is placed inside the ground, a diameter of approximately 322 mm near the first end of the first part 18 of the street post 1 at ground level. The elongated extension has a height of approximately 14m. The elongated extension 17 and the first part 18 are provided so that the elongated extension 17 slides over the first part 18 with the diameter of the first part 18 at the location where the elongated extension 17 slides over it is about 234 mm. and the diameter of the elongated extension

17 at that location is about 260 mm and the first part 18 and the elongated extension 17 overlap around 500 mm. The total height of the street post 1 is therefore about 21.5 m of which about 2 m is placed inside the ground. In this type of embodiments, preferably, the hollow cylindrical body 6 has a polygonal cross-section, for example, a regular polygon convex with for example three overlays 2, with 3 vertices 13 or two sides between vertices 13 between overlays 2.

Preferably, the fastening means 5 have a shear strength, that is the strength in the width direction 11 of the superposition 2, between 2000 N-7000 N, preferably 3000 N-6000 N, more preferably 4000 N-5000 N , most preferably 4100 N-4500 N.

Preferably, the fastening means 5 are rivets since the inventor has found that they offer a good and easy interconnection of the first and second edges 3, 4 while being provided to separate when the first and second edges 3, 4 move moving away from each other and allowing easy interconnection of the first and second edges 3, 4. However, any other fastening means 5 can be used instead, as described above.

The first part 18 of the street post 1 can be positioned such that the width 11 of the overlay 2 extends substantially along an direction substantially parallel to the approaching traffic direction.

More specifically the width 11 of the superposition 2 extends substantially along a direction having an angle between 0 ° - 90 °, 0 ° - 180 °, 0 ° - 45 °, preferably 10 ° - 30 °, more preferably 15 ° - 25 °, most preferably 20 ° with the approaching traffic direction.

Overlay 2 however can also be provided in any other possible direction. The first part

18 of the street post 1 can be placed, for example, so that the width 11 of the overlay 2 extends substantially along one direction that is substantially perpendicular to the approaching traffic direction or another possible direction.

Claims (22)

5 10 fifteen twenty 25 30 35 40 Four. Five fifty 1. A street post with impact-absorbent deformation (1) that extends substantially along a longitudinal direction (8), wherein the street post with impact-absorbent deformation (1) bends when a vehicle impacts and the bent part of the street post with impact-absorbent deformation crushes the vehicle, characterized in that the height of the first bending part (18) of the street post with impact-absorbent deformation is chosen such that in the impact the post of Street with impact-absorbent deformation allows better control of the G forces and the bent part of the street post with shock-absorbing deformation that crushes the vehicle does not substantially hit the roof of said impacting vehicle and where the street post with deformation shock absorber (1) comprises an elongate extension (17) connected in a disconnectable manner at a predetermined height to said first part (18) of the call post e with impact-absorbent deformation (1) so that upon impact on the first part (18) of the street post with impact-absorbent deformation (1), the elongated extension (17) is disconnected from the street post with absorbent deformation of impacts (1). 2. The street post with impact absorbing deformation (1) according to claim 1, characterized in that the height of the first part (18) of the street post with impact absorbing deformation (1) is smaller or larger than the height of the elongated extension (17). 3. The street post with impact-absorbent deformation (1) according to any one of the preceding claims, characterized in that the elongated extension (17) and / or the first part (18) of the street post (1) comprises a body cylindrical that extends around the longitudinal direction along a circumferential direction. 4. The street post with impact-absorbent deformation (1) according to claim 3, characterized in that the circumference of the first part (18) of the street post with impact-absorbent deformation (1) is smaller than the circumference of the elongated extension (17) at the predetermined height. 5. The street post with impact-absorbent deformation (1) according to claim 3 or 4, characterized in that the cylindrical body (6) of the first part (18) is hollow and comprises at least one superposition (2) of a first (3) and a second edge (4) of a circumferential lateral parel (7) forming the cylindrical body (6), the cylindrical body (6) comprises fastening means (5) for interconnecting the first and second edges ( 3, 4), the overlay (2) has a length (10) that extends substantially parallel along the longitudinal direction (8). The street post with impact-absorbent deformation (1) according to claim 5, characterized in that the overlay (2) has a width (11) that extends substantially along the circumferential direction (9). 7. The street post with impact-absorbent deformation (1) according to any one of claims 5-6, characterized in that the side wall (7) and the clamping means (5) are provided to split opening along the overlap (2) by breaking the fastening means (5) when impacting at a place of impact (15) on the street post with impact-absorbent deformation (1), the cylindrical body (6), which is provided in the place of impact (15). 8. The street post with impact-absorbent deformation (1) according to any one of claims 5-7, characterized in that the side wall material (7) has an elastic limit (Re) between 50 N / mm2 - 700N / mm2, preferably 200 N / mm2-550N / mm2, more preferably 330 N / mm2-410N / mm2. 9. The street post with impact-absorbent deformation (1) according to any one of claims 5-8, characterized in that the side wall material (7) has a tensile strength (Rm) between 50 N / mm2 - 1350 N / mm2, preferably 350 N / mm2-1050 N / mm2, more preferably 600 N / mm2-700 N / mm2. 10. The street post with impact-absorbent deformation (1) according to any one of claims 5-9, characterized in that the material of the side wall (7) has a minimum elongation before breaking (A80) of at least 5%, preferably 15%, more preferably 21%. 11. The street post with impact-absorbent deformation (1) according to any one of claims 5-10, characterized in that the side wall (7) has a thickness between 20 mm - 0.5 mm, preferably 10 mm -1 mm, more preferably 5 mm -1 mm, even more preferably 2 mm. 12. The street post with impact-absorbent deformation (1) according to any one of claims 3-11, characterized in that the cylindrical body (6) of the first part (18) has a diameter (12) in the place of impact (15) between 50 mm - 500 mm, preferably 150 mm - 400 mm, more preferably 200 mm - 350 mm. 13. The street post with impact-absorbent deformation (1) according to any one of claims 5-12, characterized in that the width (11) of the overlay (2) is at least 0.1%, preferably at most 100%, more preferably between 0.1% and 10%, most preferably between 2% and 3.5% of the circumference of the cylindrical body (6). 14. The street post with impact-absorbent deformation (1) according to any one of claims 5-13, characterized in that the clamping means (5) have a shear strength between 2000 N-7000 N, preferably 3000 N - 6000 N, more preferably 4000 N - 5000 N, most preferably 4100 N - 4500 N. 15. The street post with shock absorbing deformation (1) according to any one of the claims 5 5-14 characterized in that the fastening means (5) are rivets. 16. The street post with impact-absorbent deformation (1) according to any one of claims 3-16, characterized in that the cylindrical body (6) has a round cross-section. 17. The street post with impact-absorbent deformation (1) according to any one of claims 3-16, characterized in that the cylindrical body (6) of the first part (18) has a polygonal cross-section 10 regular. 18. The street post with impact-absorbent deformation (1) according to claim 17, characterized in that the overlap (2) is positioned substantially in the center between two adjacent vertices (13) of the regular polygonal cross-section. 19. The street post with shock absorbing deformation (1) according to claim 16 or 17, characterized in that the regular polygonal cross-section comprises an odd number of vertices (13). 20. The street post with impact-absorbent deformation (1) according to any one of claims 5-19, characterized in that the circumferential side wall (7) forming the cylindrical body (6) comprises at least one folded metal plate ( 14). 21. The street post with shock absorbing deformation (1) according to claim 20, characterized in that the metal sheet (14) is made of steel. 22. The street post with shock absorbing deformation (1) according to any one of the preceding claims, characterized in that an accessory (19) is connected to the elongate extension (17).