FR2785920A1 - IMPROVEMENT OF MOVABLE BARRIER ELEMENTS - Google Patents

Abstract

The present invention relates to barrier elements allowing the production of temporary barriers which are used in particular to separate a traffic lane from another traffic lane or from a building site or land. The technical field of the invention is that of the manufacture of separating elements (or sections or modules), particularly separating elements essentially made of folded sheet steel, intended for the construction and temporary installation of mobile or movable safety barriers (or slides) According to the invention, a movable barrier separating element (1) able to be placed or fixed on the ground, of elongated shape along a horizontal longitudinal axis (1b), comprises two longitudinal flanges (1m, 1n, 1c ) reinforced and inclined to the horizontal by an angle A in the range from 10 to 30 degrees.

Description

Improvement to movable barrier elements The present invention has

  for object barrier elements allowing the realization of temporary barriers which are used in particular to separate a traffic lane from another traffic lane or from a construction site or land. The technical field of the invention is that of the manufacture of separating elements (or sections or modules), particularly separating elements essentially made of folded sheet steel, intended for the construction and temporary installation of barriers (or slides)

  or movable safety devices on the ground.

  The main function of these barriers is to prevent a vehicle from leaving the road. The impact of a vehicle against a barrier causes significant forces, in particular bending and traction, which must be supported by the separating sections and their junctions (or connections). Patent EP 485 746 (S.P.S.) describes a protective barrier element for roads, whose mobility in the event of impact is limited; for this purpose, the element is provided with a transverse spacer in the form of a trapezoidal plate, which is provided over its entire length with a toothed underside of wavy or zigzag shape, promoting friction on the ground; this structure has drawbacks: the wavy shape of the toothed part prevents it from contributing to the stiffness of the body of the barrier element; moreover, the connection between two elements by a pin engaging in plates, in addition to the drawbacks linked to this detachable connecting member, also prevents the entire structure of the separator from contributing homogeneously to the impact resistance d '' a vehicle against a

  barrier made up of several elements assembled end to end.

  The object of the present application is to propose movable barrier separating elements capable of being placed or fixed to the ground, at least part of the structure of which is metallic, the resistance of which to deformation under the effect of an impact d 'a vehicle is improved. An object of the invention is to propose separators of reduced cost, which are improved by making it possible to obtain a barrier more resistant to shocks. To this end, the separator according to the invention is provided, along each of its two lower lateral parts, with a sole (of

  elongated) longitudinal integrated in the separator, which is reinforced and preferably inclined (relative to a horizontal plane) by an angle10 A at least equal to 10 degrees and less than 30 degrees.

  To this end, the sole preferably comprises a sheet metal strip or longitudinal wall element (lc, FIG. 1), substantially planar, of which a first longitudinal edge (called external) 17 (FIGS. 1 to 7) rests on the ground and whose a second longitudinal edge (called internal) 16 (FIGS. 4 to 7) extends above the ground, at a dimension C which is linked to the width L of this wall element by the relation C = L x tangent (A ); thus, for an angle A of 20 degrees and a width L of 160 millimeters, the dimension C

  will be close to 58 millimeters (Figure 1).

  Preferably, the value of the angle A is chosen in a range going from 13 to 26 degrees, in particular going from 15 to 24 degrees, and the value of the width L is chosen in a range going from 80 to 280

  millimeters, in particular ranging from 120 to 220 millimeters.

  The reinforcing means of this sole preferably comprise a substantially flat part (lm, FIG. 1) (or wall) capable of being laid flat on the ground, which is rigidly fixed (integrated or welded) to the lower ends of the elements (lc ) side walls of the separator, that is to say at said first longitudinal edge; this horizontal flat reinforcement wall is extended by a substantially vertical flat part (in, FIG. 1) (or wall) to form with the horizontal wall (lm) a bent profile in the shape of an "L", that is to say a kind of elongated bracket extending under the lower end (lc) of the side walls of the separator; the fixing of the longitudinal edges of the sole can be obtained by welding; the square can also be obtained by longitudinal folding of the lower end (lc) of the side blank. The inclined reinforced sole extends at least over a substantial part of the length of the barrier section (or element), preferably at least over 90% of the length (18, FIG. 2) of the section, in particular over the entire length. of the section. The presence of the flat walls (horizontal (lm) and vertical (in)) of reinforcement of the sole makes it possible to increase the resistance of the separator, in particular that of the lower edges of the side walls o10 of the separator, in particular in the preferred case o the sole (or lateral lower structure) forms a triangular profile (lc, lm, in) closed. The structure of the body of the separator is all the more reinforced as its two lower lateral parts (soles) are connected by i5 through one (or more) rigid piece (s) of transverse connection which are in particular secured (preferably welded) to each of the Left (G) and Right (D) soles in an internal zone of the sole and preferably substantially along said internal edge

  (marked 16) of said longitudinal element (lc) of the sole wall.

  This inclined reinforced lower edge makes it possible, when a vehicle presses on it with its wheels, not only to resist the deformation resulting from this weight, but also to transmit the weight of the vehicle to the separator to reduce the sliding capacity on the ground of the separator, and consequently reduce the deformation of the barrier of which it is a part; this reinforced lateral edge also makes it possible, when a vehicle presses on it with its wheels, to use the entire weight of the vehicle transmitted by the wheels and to prevent lateral overturning

of the separator under shock.

  The presence of the reinforcement prevents damage to the sole when handling the separator; the separators being able to be posed by bars of 12 meters, the first sole touching the ground would be quickly damaged after a few manipulations if it were not reinforced; this reinforced lower edge also allows easy shifting (displacement) of the separator by lower lifting with a reduced number of rollers passing under the separator: the sole (particularly lm) forms a bearing and rolling surface

substantially flat and resistant.

  The elements (lm) forming part of the sole, and where appropriate the transverse connecting parts (lw, FIG. 1), can be provided on their underside with rough members such as protruding points or deformations (expanded metal) or a rubber pad

  to increase their "hooking" by friction on the ground.

  The fact that the lower ends of the side walls of the separator are connected to each other by rigid means (1w) of transverse connection, contributes to obtaining a separator whose transverse profile is semi-closed or closed at its base; the resistance of the separator is then similar to that of a tube (or a hollow beam with closed profile) and its impact resistance is increased; according to a characteristic of the invention, the main external walls (lc, Id, le, FIG. 1) of the body of the separator are obtained by folding a sheet metal side in which the radius of curvature of the fold is small, that is that is to say generally less than or equal to 10 millimeters, in particular of the order of 3 to 7 millimeters; this characteristic is particularly advantageous with regard to the fold made along said internal edge (marked 16) (or second longitudinal edge) of said sole wall element, which separates the sole from the main lateral wall (1d, FIG. 1) which is it inclined with respect to the horizontal by an angle B of between 8 degrees and 90 degrees, preferably of the order of degrees to 90 degrees: this indeed promotes good transmission of the forces from the sole to the means rigid transverse links which rest on the ground, and this therefore improves the transmission of forces resulting from an impact to the ground; this small radius avoids the

  buckling of the side walls under the effect of a shock.

  In addition, the use of small radii of curvature can be

  made with inexpensive tools.

  The rigid transverse connection means may each consist of a part in the form of a solid metal bar of rectangular section (FIGS. 4 to 6), or else in the form of a profile (hollow or open, FIG. 7) of "L" section. ", in" T ", in" U "or in square 5; each of these bars or profiles has a rib (or an edge) oriented along the axis of the separator, connecting them (by continuous or semi-continuous welding) to the bottom of the main side wall of the separator: these bars or sections extend parallel to each other (Figures 2, 3) and perpendicular to the longitudinal axis (lb, Figures 1, 2) of the separator, and are rigidly fixed, in particular welded , by each of their ends, to one and the other of the two flanges (and / or

sole reinforcements).

  The connection of the rib (or edge) of the transverse bar (1w) with the bottom of the side wall (id) of the separator is preferably carried out over a length of the order of 10 centimeters (ranging from 5 to centimeters), which allows to have a section of force transfer steel between the side wall of the separator and the reinforced flanges, which is of the order of 5 cm2; this connection is preferably arranged along the fold (marked 16) with a small radius of curvature separating the main lateral wall (ld) substantially vertical from the sole

(lc, lm, ln).

  According to a preferred embodiment, the side walls of the separator are connected together, over at least a substantial part of their height, by at least one rigid structure extending in a substantially vertical transverse plane, for example essentially constituted by a plate plane; each separator may comprise several vertical plates (marked 20, FIGS. 2, 3, 14, 15) regularly spaced apart by a distance close to i to 3 meters; alternatively, transverse reinforcements may be provided in the form of vertical transverse plates arranged alternately with horizontal transverse plates (marked 21 to 23) extending substantially halfway up the body of the separator, these reinforcements being spaced 1 to 2 apart. meters. This transverse reinforcement structure allows during an impact to transmit the forces from a first side wall (left or right) (ld) to a second side wall (respectively right or left) and therefore to the basic structure comprising the soles and their transverse connecting parts, which makes it possible to better distribute the forces in the structure of the separator, and consequently to better transmit the forces to the ground, and to resist lateral crushing during the impact. According to one embodiment, these transverse reinforcements extend at least in the lower half of the separator, are arranged facing (that is to say above) said rigid connecting means (lw) which connect the soles, and are rigidly linked (in particular welded) to these rigid sole connections; thus, the forces to which a side wall is subjected are transmitted efficiently, not only to the opposite side wall, but also to the ground, by means of said rigid connection means as well as by the bent flanges equipping the lower lateral ends of the separator. According to a particular embodiment of the transverse reinforcing structures, these extend in particular to the two longitudinal ends of the separator, and are rigidly connected to the means of connection of two sections (or elements) separators; for example, these transverse (end) structures comprise a thick plate for anchoring connecting rods (male) and a thick plate associated with the female connecting members, and / or comprise bars (marked 25, FIG. 15). extending along the inner side of the

  side and top walls of the separator.

  The transverse connecting pieces fixed to the soles, which are flush with the underside of the soles and which therefore rest on the ground, may be provided with one or more orifice (s) allowing the handling of the separator (turned over) by a lifting device, and / or allowing passage through the connecting piece of a spindle

  for anchoring a separator in the ground.

  The improvement of the rigidity of the separator body allows, for equal performances, to use a thinner sheet than that

  usually provided, in particular a sheet whose thickness is situated in a range going from 2 to 4 millimeters, in particular a sheet 5 of thickness close to 2.5 to 3.5 millimeters.

  The advantages provided by the invention appear in the

  following description which refers to the accompanying drawings, which illustrate

  without any limiting nature of the preferred embodiments of the invention. In the drawings, identical or similar elements bear,

  unless otherwise indicated, the same references from one figure to another.

  The attached figures illustrate several embodiments of these means for reinforcing the body of the separator; in these figures, the end connections (for securing two separators

  barriers) are not shown.

  Figure 1 illustrates in schematic cross-sectional view, the structure of a separator equipped with two longitudinal flanges

  angled and transverse connecting means.

  Figures 2 and 3 to 15 illustrate in schematic perspective view four alternative embodiments of a separator according to the invention; Figure 3 illustrates in perspective view in position

  returned the separator of figure 2.

  Figures 4 to 7 illustrate four alternative embodiments of the pads and means of connection between soles, in perspective view

  partial right (Figures 4, 5, 7) or inverted (Figure 6).

  FIGS. 8, 9 and 13 illustrate devices for anchoring separators to the ground in accordance with the invention; Figure 9 is a view in

  exploded perspective of the anchoring means.

  Figures 10 to 12 illustrate a partial perspective view of a

  separator part according to the invention.

  With reference to FIG. I in particular, a separator body 1 with a longitudinal axis lb comprises: - an upper horizontal wall - two main lateral walls ld, forming with the wall le a "U" profile flared downwards, symmetrical with respect to a median longitudinal plane la; - Two lower lateral folds (or walls) lc extending the wall ld and inclined relative to the latter, and which are inclined relative to the ground by an angle A; - two horizontal longitudinal reinforcing plates superimposed ls and lf, - two lateral flanges (left and right) bent, each having io, in addition to the wall lc, a horizontal wall lm and a vertical wall In which are rigidly fixed to each other as well as to the folds lc under which they extend; - a horizontal stiffening bar lw which is welded in lr to the brackets lm, ln, connects the reinforced edges lm, ln, lc and reinforces the entire structure; the bar may have a flat lower face provided, on at least part of its surface, with roughness; - a flat transverse reinforcement it extends vertically - a small longitudinal bar read is welded to the transverse bar lw, and is welded in lz to the zone (fold 16, FIGS. 4 to 7) connecting the walls lc and ld: this bar contributes to reinforce the sole and the structure of the separator as a whole; The wall elements lc, ld are preferably obtained by folding a sheet of steel 3 or 4 millimeters thick, according to

  folding radii 16, 30 of a value close to 5 millimeters.

  With reference to Figures 1 to 3 in particular, the separator 1 comprises a sheet metal body of 3 millimeters (2.5 to 4 millimeters) continuous on its periphery (for torsion), closed over its entire height comprising a substantially vertical body with grip on the ground 10 reduced (less than or equal to 600 millimeters), with a width 11 of head equal to 25% of its height 12, forming an angle (90-B) of 5 degrees with the vertical and side overhangs folded with a radius of 5 millimeters making an angle A of 19.5 degrees with the horizontal. The lateral overhangs (soles) have at their end a hollow triangular tube shape of several centimeters thick and are stiffened and connected by a massive 1w bar connecting the overhangs located on each face. The structure of the body of the separator is all the more reinforced that, on the one hand the wall id close to the vertical is stiffened by the wall lc substantially perpendicular, close to the horizontal, that on the other hand the wall lc close to the horizontal is itself stiffened by the reinforcement in, lm in a hollow edge tube, and that finally the lower walls are recessed to each other by means of a piece 1w of

massive transverse connection.

  The walls therefore all participate in the resistance to bending

  considerably increasing the inertia of the separator.

  If the rigid connection consists of solid bars 1w (Figure 4) comprising a steel section of 5 cm2 in contact with the bottom of the walls ld of the separator, they are welded directly without adding a rib; otherwise, a rib (14, Figures 5, 6) oriented along the axis of the separator is provided; if hollow tubes are used (figure 7), gussets (14, figures 5, 6) providing a 5 cm2 connection are provided between the bottom of the walls (ld) of the separator

and the hollow tube lw.

  The inclined reinforced soles and their transverse connection means, due to the rigidity of the connection between the angle of the sheets and the reinforced edge, give the separator great inertia. This arrangement allows the part of the separator in contact with the vehicle, because of its great inertia (and with connections transmitting the moments) to mobilize a large length of separator to retain the vehicle. Without these devices, the edges would be more damaged and the separator would pivot and / or slide more during

  shock due to sagging edges and side walls.

  Cross reinforcements (20, Figures 14, 15 in particular) extend substantially over the entire height of the main side walls and are fixed in the lower part (by a steel section of 5 cm2 so as to be able to transmit a compression force from

  several tonnes, preferably 10 tonnes) to skids (or rigid transverse bars lw) carrying on the ground. The pads are preferably provided on their underside with a product (or coating 5 26, Figure 6) with a very high coefficient of friction.

  Thus, the forces to which a side wall is subjected are transmitted efficiently, not only to the opposite side wall, but

  also on the ground, by means of said pads.

  The structure of the separator comprises an uninterrupted chain of elements operating in compression between the face where the vehicle strikes and the ground support. The elements (transverse profile, wall, bar, shoe) are linked to each other to transmit the force by 5 cm2 of steel (approximately). These solid pads will be confused with the rigid connection means of the bent flanges for the sake of economy, but the geometry may impose between the lower edge of the almost vertical wall of the separator and the rigid connection means, a steel bar.

  allowing the transit of compression, by 5 cm of steel (approximately).

  The separators have the particularity of having the edges of the longitudinal ends (in contact with the neighboring separator) reinforced by plates of approximately 10 millimeters thick, fixed by

solder points.

  This arrangement makes it possible to better resist handling during the impact of a vehicle, mismatches between a separator and

the following are decreased.

  The separator has the particularity of having members constituting two lifting rings in the upper and lower part making it possible to grip the separator, in normal position and in inverted position, with slings closing on the ring; the members arranged in the lower part are obtained by the presence of an orifice (Figures 3, 6) drilled in the bar 1w; the organs arranged in the upper part are obtained by the presence of an orifice 51 (FIGS. 2, 13) adjoining the orifice 40 orifices provided in the wall the -, and by a bar 52 reinforcing the portion of the wall extending it between these holes; this arrangement allows an improvement in safety and a greater speed of assembly and disassembly. The separator has the particularity of having holes 40, FIG. 13, in the upper and middle part making it possible to superimpose an additional security barrier such as an opaque screen 41 (FIG.), Which is provided with two vertical bars 42 s' engaging in two superimposed holes 40, respectively provided in the upper wall the

  and in the reinforcement piece 23; this arrangement allows to put eti0 remove a barrier with very simple fixing devices.

  According to another aspect, the invention relates to an improved device for fixing to the separator floor, which is illustrated in FIGS. 8, 9 and 13; the device comprises several pins 60 (or piles) comprising two separable parts: a first part 61 of cylindrical pin provided at its lower end with a tip 63 and provided at its second end (upper) with a threaded part 64 allowing the connection by screwing a second part 62, the cylindrical body of the first part 61 having a diameter between and 100 millimeters, in particular of the order of 30 to 70 millimeters, which part is intended to be planted permanently in the ground , substantially flush with its upper end; a second part 62 which comprises a threaded part complementary to the threaded part 64, which comprises a head 65, for example hexagonal capable of cooperating with a screwing tool such as a wrench, and which comprises a horizontal transverse orifice 66 for passage a key or screw 67; the separating element comprises a rigid transverse bar 1w provided with an orifice 70 for the passage of the spindle, a part 71 pierced with a orifice for the passage of the spindle; the part 71 and / or the bar lw comprises (- nt) an orifice 72 for the passage of a key 67 for securing the separating element to the pin 60 for anchoring in the ground. Each sole may have teeth on its underside or

  spikes, or a rubberized film or pad.

Claims (10)

  1. Element (1) movable barrier separator capable of being placed or fixed on the ground, of elongated shape along a longitudinal longitudinal axis (lb), characterized in that it comprises two reinforced longitudinal flanges (lm, ln, lc) and inclined to the horizontal by an angle A in the range of 10 to 30 degrees. 2. Element according to claim 1, in which - the main lateral wall (ld) and the flanges (lm, In, lc) are made of sheet steel, and - the radius of curvature of the longitudinal fold (16) separating the wall main lateral (ld) of the sole wall (lc), is less than 10 millimeters, and - the left and right soles are connected by rigid means   (1w) of transverse connection which are able to rest on the ground.   3. Element according to claim 2, wherein each sole reinforcement is essentially constituted by a horizontal sheet (lm) and by a vertical sheet (in) which form, with the inclined sole wall (lc), a hollow tubular structure of which the transverse profile is closed.   4. Element according to any one of claims 1 to 3,   in which the thickness of the wall sheets (lm, ln, lc, ld) is located   in a range from 2 to 4 millimeters.   5. Element according to any one of claims 1 to 4,   in which the left and right soles are connected together by bars (lw) which are welded directly or by ribs or gussets (14, 15, In), in the region of the longitudinal fold (16) separating the walls (lc, ld).   6. Element according to any one of claims 1 to 5,   wherein each sole has on its underside means increasing its friction capacity loaded on the ground, which means of increased friction comprise projections, teeth or pins provided on said underside, or a film or a pad of a rubberized material.   7. Element according to any one of claims 1 to 6,   which further comprises at least one vertical reinforcement (lt, 20) transverse plane, extending between the side walls (ld), over a substantial part of its height (12), which vertical reinforcement is welded in the lower part to pads or rigid transverse connection means (lw) able to rest on the ground, that is to say comprising a face extending   in line with the bottom wall (lm) of the soles.   8. Device for fixing to the ground an element according to one   any one of claims 1 to 7, characterized in that it comprises   a spindle (60) comprising two separable parts (61, 62).   9. Device according to claim 8, which comprises - a first part (61) of cylindrical pin provided at its lower end with a tip (63) and provided at its second end (upper) with a threaded part (64) allowing the fastening by screwing of a second part (62), the cylindrical body of the first part (61) being of diameter between and 100 millimeters, in particular of the order of 30 to 70 millimeters, which part is intended to be permanently planted in the ground, substantially flush with its upper end, - a second part (62) which comprises a threaded part complementary to the threaded part (64), which comprises a head (65), for example hexagonal capable of cooperating with a screwing tool such as a wrench, and which has a horizontal transverse orifice (66) for   the passage of a key or screw (67).   10. Element according to any one of claims 1 to 7,   which is capable of being temporarily fixed to the ground by a device according to   any one of claims 8 or 9, by at least two pins   (60) or piles, and which comprises: - a rigid transverse bar (lw) provided with an orifice (70) for the passage of the spindle, - a part (71) pierced with a orifice for the passage of the spindle, and in which said part (71) and / or said bar comprises (s) an orifice (72) for the passage of a key (67) for securing   the separating element to the pin (60) for anchoring in the ground.