EP0767276A1 - Base and temporary flexible roadsign and its improvements - Google Patents

Abstract

The road sign has a base made from a lower square plate (1) surmounted by an upper element (2) of trapezoid section. The ends (3) of the lower plate project with respect to the upper element. The base has a vertical bottomless channel (6) with recesses (7,8) in its opposite walls. Handles (4) and side notches (19) are used for manipulating it. The channel receives the foot (21) of a flexible plastics panel (20) with front and rear reinforcing elements engaging with the recesses. On each side of the foot the panel has wedging heels, and above the foot it has two apertures (22) for handles. The panel and foot are made from an injection-moulded thermo-setting plastics, e.g. polyester. They are cut by laser or water-jet from extruded panels of thermoplastic resin, e.g. polycarbonate.

Description

The invention relates to a base assembly with integrated crutches and a flexible temporary road sign and its improvements.

Such an assembly is intended to be used in particular in the field of the road industry to temporarily signal to road users either a danger, or an absolute requirement to be respected, or an indication resulting from the presence of a work site or any other restriction on movement under ministerial instructions on temporary vertical signage.

The assembly forming the subject of the present invention comprises on the one hand a base or base consisting of a lower plate of rectangular section surmounted by a plate of isosceles trapezoidal section which is integral with it and forming two crutches molded in its mass , traversed over its entire height by a grooved axial transverse sheath, and on the other hand a flexible plastic panel whose integrated foot is adapted to be housed in the sheath of the base.

The object of this device is to replace the current practice which consists of stabilizing temporary metal signboards with movable stands using various additional weights placed astride their legs: sandbags, stones, rubble stones, planks etc ... whose appearance is unsightly, these panels being on the other hand installed on the ground in an inclined position by their design and can be dangerous in the event of overturning by a vehicle or by a gust of wind. These panels being metallic, they have cutting projections and dangerous joints for their handling.

Various solutions to these problems have been provided by prior invention patents other than those already filed by the applicant. Thus, this is the case of the English patent GB-A-2 186 729 which relates to a base and articulated panel assembly molded in synthetic rubber, the structure of which comprises a fairly complex mechanism which does not allow the panel to be installed in a vertical position in particular. This is also the case of the European patent published under the number 0 488 865 A 1 concerning a temporary signaling element molded in synthetic resin, stiffened by fallen edges during its molding, and stabilized by two shaped ballast bags. of tubes passing through it at its base, therefore also requiring the handling of two additional weights, that is to say three elements with the panel which is not very resistant to shocks, that is to say without significant and practical progress compared to existing systems, if it is only that the panel is placed on the ground in a vertical position ensuring better night efficiency of the generally reflectorized symbol of the panel.

In the same field of temporary road signs using bases, the German patent DE - U - 85 35 843 and the English patent GB - A. 2,261,000 also provide a solution, but for ballasting of posts or site barriers.

Finally, in the advertising field, PCT patent No. WO 90/11590 relates to a display support constituted by a plastic base in the transverse slot of which is screwed a metal panel made of thin sheet metal, this concept cannot be accommodating conditions of use in the field of road signs due in particular to its fragility. Indeed, the conditions of use of temporary road signs are particularly harsh: such signs are handled without precautions on construction sites and in trucks, they must be assembled and disassembled on site very quickly for safety reasons under road traffic, and they sometimes have large dimensions like highway signs, the design of which is therefore incompatible with a light structure.

It is therefore a question of designing a temporary traffic sign without roughness, easy to set up vertically and instantly without having to supply and handle several disparate elements, devoid of sharp and articulated metal parts, aesthetic, easy to store in stores and transport, resistant to multiple manipulations, wind and shock without causing significant damage to users and their vehicle in case of loss of driver control.

As indicated briefly above, the base and panel assembly according to the invention consists of a base with integrated crutches formed by two superimposed plates of different section and length but of the same width, molded together in a recycled rubber material for the make them united. The lower plate is a rectangular parallelepiped with square or rectangular base and called lower plate with rectangular section in the following, and the upper plate has an isosceles trapezoidal section whose lower base, square or rectangular, is in contact and secured to the base upper of the lower plate whose length is greater than the length of the lower base of the trapezoidal plate so as to obtain a projection of the same width at the two ends of the lower plate; the width of the two projections is calculated so that their sum is equal to the length of the upper base of the trapezoidal plate measured in the same direction, for reasons of storage without voids of the bases. Indeed, this design of the base allows pyramid storage of a number of bases on their lower base lengthwise so that the juxtaposition of two projections allows the upper base of another stored base to be placed there. in the inverted position as shown in FIG. 5 commented below.

According to this design, the end protrusions can each form in their central part a handle of gripping at the front and back of the base, by a recess under and against the end projection. These two handles make it easier to handle the base and they have a notch against their outer edge for the reasons developed below.

Finally, the height of the two plates can be different and generally the height of the upper plate with isosceles trapezoidal section is a little greater than that of the lower plate with rectangular section because it can be related to the dimensions of the panel to be anchored.

By convention, in what follows, the front and rear of the base correspond respectively to the front and to the rear of the panel as it is drawn in FIG. 1 commented below, the length of the two plates forming the base is measured along their longitudinal axis between their front and their rear materialized by the end projections.

The vertical transverse axis of the two joined plates must coincide so as to obtain a common vertical transverse axis, that is to say perpendicular to the two vertical lateral sides of the base so as to provide a vertical axial sheath thereon, generally rectangular, which is bottomless so as to be able to easily evacuate rainwater and small stones which may enter it; this sheath is capable of forming the nesting seat of the lower part, generally also rectangular, of the foot of the panel as described below, it being understood that the length of the opening of the sheath is less than the width of the base.

On the other hand, it has been found that a large panel cut out for example from a polycarbonate plate with a thickness of 6 mm bends too much when passing fast trucks on motorways due to the large displacement of air. Also, a simple way to make such less flexible panel consists in providing it at the rear along its vertical axis, over its entire height including its foot, with a first elongated reinforcement plate of plastic or light metal fixed by gluing, or by welding or by mechanical means such as screwing or bolting, or by molding in the case of manufacture of the panel and its base by injection of plastic material. If necessary, a first reinforcing plate is also provided at the front of the foot of the panel along its vertical axis up to the lower limit of the symbol corresponding to the base of the panel.

This reinforcement necessitates providing opposite in the two walls of the sheath a first vertical central groove whose cross section corresponds to the cross section of the first elongated reinforcing plate which is the same for the front and rear of the panel and its integrated foot. These more or less wide grooves, for housing the elongated reinforcing plates described above, do not affect the possibility of reversibility of the panel on its base since they are opposite.

The cross section of the sheath thus formed therefore corresponds to the cross section of the lower part of the base of the panel and of its first reinforcing plates, the introduction of which into the rubberized base by simple pressure is made possible by the elasticity of the base which also allows the panel to be removed, the friction forces being sufficient to slow the untimely disassembly of the assembly.

The signaling of certain construction sites on important roads often requires the installation of triangular danger signs provided with three synchronized flashing lights, connected to an accumulator or to an electric battery, called battery below; in this case, it is possible to make the base versatile by installing two battery supports arranged each symmetrically with respect to the sheath, according to a design which is developed below. But the installation of synchronized flashing lights weighing down the supporting panel, it is prudent to reinforce it by a second vertical elongated plate, and therefore to provide for all practical purposes in the base, a second vertical central groove without bottom, of the same section as the second above-mentioned vertical elongated plate, and of a width which is less than that of the first front and rear groove, it being recalled that the panel remaining reversible on its base, the modifications made according to the invention must therefore remain symmetrical with respect to the transverse vertical axis of the base.

On the other hand, it turns out that the handling of a base leads to a tendency by the handlers to lift it from any side. Also, a lateral handling notch is made in the middle of each vertical side of the base.

Due to the high density of the material that can be molded, of the order of 1.5, it turns out to be necessary to make lightening recesses inside the base, the openings of which are located below, except for the two central recesses open above to be fitted with a battery holder; these recesses have a shape known to mold makers, that is to say in trunks of prisms or straight cylinders so as to obtain orthogonal vertical stiffening ribs between the voids with a certain draft angle to facilitate demolding of the base; the transverse central rib is necessarily wider than the other ribs since it contains the sheath and the grooves housing the foot of the panel. The end projections and the walls of the vertical sides of the base are also considered for the invention as ribs. A partially hollow base is thus obtained provided with an inclined cover constituted by four similar elements. But as the bases are designed to be able be stored in a pyramidal fashion alternately flat and turned upside down as explained above, the recesses will form a receptacle for rainwater when stored outside the stores, which requires opening lights in the cover of the base, at the low points of the base in the inverted position determined by the transverse ribs of the recesses, so that the location of the lights coincides to evacuate the water to the ground, and this by opening lights symmetrically with respect to the transverse axis of an inclined cover of the base and in the same longitudinal alignment. Several forms of lights are possible: rectangular, square, round ... and two lights per recess are sufficient.

For the same reason of evacuation of rainwater during pyramid storage, the vertical outer edge of the grips already mentioned on the base must be a little behind the outer edge of the base to evacuate the water more easily rain infiltrating the vertical bottomless sheath of said base when two bases are stored flat edge to edge and are surmounted by an inverted base, the sleeve then being in the extension of the junction of the two edges. The notch already mentioned above is therefore necessary, and useful for promoting the manual lifting of the same bases stored edge to edge on the side of their projections.

As regards the installation of the two aforementioned battery supports, a so-called central recess is provided at the front and at the rear of the base, delimited by the transverse central rib, two ribs which are perpendicular to it, arranged symmetrically with respect to the transverse longitudinal axis of the base, and a handle for gripping the base. The inclined cover of this obviously is removed and is replaced by a square or rectangular shelf for use as a battery holder fixed horizontally by molding against these three ribs.

The battery holder is placed either above the ground, for example at the level of the grip handle of the base which faces it, ie at the lower level of the base, and it can serve as a counter-handle of the base for its lifting when it is turned over. The fourth side of this support is provided or not with a rim so as to wedge the battery, this rim having to be at a distance from the handle such that it is possible to pass a hand between the two elements; rainwater is discharged through an open cut in this rim. If the battery holder is placed at ground level, the handle of the base is used as an edge, spaced from the edge of the battery holder.

The pyramid storage system described above can sometimes be replaced by flat, superimposed storage, for transport reasons, in particular in a narrow vehicle or on a pallet. Also, it is essential that the bases do not slide over each other either transversely or laterally, in the event of sudden braking of the vehicle for example; they must therefore include wedging means above and below in their transverse central part which is the narrowest. These means consist of two so-called upper-molded rails in the mass on the upper base of the upper plate with isosceles trapezoidal section, over the entire width of this base and symmetrically with respect to the vertical transverse axis of the base. The ends of the rails have an interior shoulder that is not joined so as to wedge the upper base transversely and to evacuate rainwater when the panel is in place, this water can also be evacuated by notches made in the transverse rails.

A hollow parallelepiped is thus obtained capable of wedging two so-called lower rails of square or rectangular section, parallel, of the same thickness as the upper rails, molded in the mass under the central rib of the base symmetrically with respect to the vertical transverse axis, and shorter than the upper rails, also closed by an internal shoulder at each end.

The internal spacing of the upper rails must coincide with the external spacing of the lower rails in such a way that when two bases are superimposed, the lower rails can cooperate in a detachable manner with the upper rails, i.e. say with a slight play, and thus remove any slippage. On the other hand, the projecting molding of the lower rails causing an imbalance of the base, this is compensated by the molding, under the ends of the base in particular, of small studs of known type, of the same thickness as the rails, this combination means also avoiding the sliding of the base on the ground.

With regard to the cutting of the panel for its installation on the base and its removal, two solutions make it possible to limit the introduction of the lower part of the foot of the panel at the level of the lower surface of the base in contact with the ground. , when the assembly is moved without disassembly.

The first solution consists in flaring its foot up to the symbol of the panel from the upper surface of the base so that this flare forms a stop on the base.

The second solution, which also makes it possible to reduce the wind resistance of the set in place, consists in partially replacing the flaring of the foot of the panel outside the base by a progressive narrowing having its origin at the level of the upper surface of the base. and extending substantially to its mid-height, followed by a widening to the symbol materializing the bottom of the panel when it is triangular or rectangular. This design also further facilitates manual removal of the panel from its base and saves the plastic material constituting the panel. But this second design involves the obligation to provide a wedge heel on each side of the foot of the panel at the birth of the narrowing located at the upper surface of the base, that is to say at the base of the upper non-retractable part of the foot of the panel. These two heels each consist of a small widening of the foot of the panel at this level to prevent the foot from sinking beyond the lower level of the base, and they also allow better lateral wedging of the panel; they also adapt to the bottom of the panel in its first design.

On the other hand, to overcome the scabbard / foot frictional forces of the panel during assembly and disassembly of the system, an opening is made on each side of the upper flared part of the panel foot, below the lower limit of the symbol, and this for use as a handle for gripping the panel which is smooth by construction and therefore not very handy if it is large.

Finally, a third V-shaped opening is made in the retractable lower part of the foot of the panel in order to also facilitate handling of the panel, in particular for its storage on edge in the rack of transport vehicles and for its suspension in stores. ; this third opening is called suspension handle in what follows.

The invention has the advantage of remedying certain drawbacks noted by bringing into play a flexible structure of the panel offering less resistance to air movement and great ease of positioning since only two elements are to be handled, using the properties flexibility of the relatively flexible and recyclable plastic. The set is easy to store and handle thanks to its multiple handles. The relative lightness of the signboards thus obtained and the high density of the material constituting the base make it possible to considerably lower the center of gravity of the assembly and therefore to concentrate its weight practically at ground level, hence its great stability. Finally, the polished substrate of the panels is particularly suitable for receiving the film of the symbol.

The invention is described below using an example and references to the accompanying drawings, in which:

Figure 1 shows a perspective view of a base assembly with integrated crutches with triangular danger panel in place.

Figure 2 shows a vertical longitudinal section of the base on a scale of 1/5, made at its axis.

FIG. 3 represents a vertical longitudinal section of the base on the same scale, made at the level of the openings, that is to say substantially at 1/5 of the width of the base.

Figure 4 shows a perspective view of a panel out of its base, with fully flared foot.

FIG. 5 represents on a scale of 1 / 12.5 a front view of an example of pyramidal storage of the bases justifying the difference in length between the lower plate with rectangular section and the upper plate with trapezoidal section constituting the base.

According to the preferred embodiment represented by FIG. 1 and by FIGS. 2 and 3 for the hidden parts, the base is constituted by a square lower plate 1 with rectangular section of 600 mm on side and 80 mm in height, partially hollow . It is surmounted by an upper plate 2, also partially hollow, with an isosceles trapezoidal section whose length of the lower base measures 480 mm, the length of the upper base measures 120 mm, and is 100 mm high. The width between its two vertical sides is 600 mm and therefore coincides with the width of the lower plate 1, but its length of 480 mm is 120 mm less than the length of the lower plate 1 so as to leave free an end projection 3 60 mm wide at the front and rear of the base, and the sum of 120 mm corresponds to the length of the upper base of upper plate 2 with isosceles trapezoidal section, this design making it possible to store the bases without losing space as shown in FIG. 5.

A grip handle 4 is open at the front and at the rear of the base and designed so as to leave a void of 160 x 50 mm in front of it while the handle has a length of 160 mm in the extension of the projection d 'extremity, a height of 40 mm and a width of 50 mm leaving free a notch 5 of 10 mm thick made in its outer face.

A vertical bottomless sheath 6, rectangular, crosses the base thus formed from top to bottom in coincidence with the vertical transverse axis of said base. Its height is therefore equal to the cumulative height of the two plates 1 and 2, i.e. 180 mm. The length of the opening of this sheath 6 is 450 mm, its width is 6 mm and it has in its front and rear walls a first vertical central groove 7 without bottom with a cross section of 200 x 8 mm which has a second vertical central groove 8 without bottom with a cross section of 100 x 8 mm. The sheath thus formed therefore has in its central part a section of 6 + (8 x 2) + (8 x 2) = 38 mm.

Lightening recesses 9 in the form of straight prismatic trunks with rectangular section are made from below inside the base only under its inclined cover 10 with an average thickness of 25 mm and they are separated by vertical ribs 11 of 25 mm thick, the orthogonal location of which is shown by thin dashed lines in Figure 1 and is best visible in Figure 3 for the transverse ribs. The walls of the vertical sides of the base are formed by the same ribs which are then longitudinal.

The transverse central rib 12 has a width 120 mm which corresponds to the length of the upper base of the upper plate 2 with isosceles trapezoidal section. However, the width of this central rib can be reduced so as to possibly extend the lightening recesses 9 under the horizontal cover. Eight lightening recesses 9 are provided.

Sixteen lights 13 of lightening recesses 9 are open in the inclined cover 10 of the base, but only eight are visible in Figures 1 and 3; they have a section of 50 x 25 mm and are placed against the transverse ribs 11.

In the upper base of 600 x 120 mm of the upper plate 2, are molded in the mass two so-called upper wedging rails 14 15 mm wide at the top and 10 mm thick with a spacing of 90 mm partially closed to both ends by two internal shoulders 15 40 mm wide, so as to form a hollow rectangular parallelepiped of 520 x 90 x 10 mm.

Under the base, on each side of the vertical sleeve 6, are also molded projecting two so-called lower wedging rails 16, not visible in FIG. 1, 518 mm long, 25 mm wide and 10 mm thick. with a spacing of 38 mm corresponding to the straight section of 38 mm of the sleeve 6 and its four grooves 7 and 8 and thus having an external spacing of 88 mm, with a clearance of 2 mm with respect to the internal spacing of 90 mm from top rails 14.

Non-referenced studs are molded under the ends of the base, with a height of 10 mm corresponding to the thickness of the lower wedging rails 16.

On the other hand, the base has in its longitudinal axial part, opposite each grip handle 4, on each side of the transverse central rib 12, a opening in the shape of a prism trunk with a rectangular base of 180 x 160 mm, with a height of 80 mm on the side of the end projections 3 of the base and 180 mm on the side of the transverse central rib 12, in order to be able to mold therein a battery support 17 against the longitudinal ribs arranged symmetrically with respect to the vertical longitudinal axis of the base made apparent. FIG. 2 shows more precisely the structure of this support of 160 x 130 x 20 mm, leaving an empty space of 50 mm in front of each handle. This support is provided with a timing edge 18 of the battery with a central notch.

Furthermore, a lateral handling notch (19) is provided in the middle of the bottom part of each vertical side of the base and has the shape of a hollow rectangular parallelepiped of 100 x 30 x 30 mm.

The flexible danger panel 20 shown in FIG. 1 and installed on its base is cut with its integrated foot 21 from a 6 mm thick polycarbonate plate, transparent for a better understanding of the drawing, and deprived for the same reason of reinforcement plates elongated but which are visible in FIG. 4; the panel thus cut is provided with two grips 22 of 90 x 30 mm. The width of the panel is 1000 mm, the height of its foot is limited to 360 mm to stay within the limits of the design; the lower part of the foot 21 of the panel 20 has a rectangular surface of 448 x 180 mm retractable in the vertical sheath 6 without bottom whose rectangular outline is shown in Figure 1 by a strong broken line. This retractable lower part of the foot of the panel is widened on each side by a wedging heel 23 of 50 mm in length, at the level of the upper surface of the base. The upper part of the non-retractable foot therefore also measures 180 mm in height and first presents a progressive narrowing 24 from each end of the wedging heel 23 of the panel 20, followed by a flare 25 to the base of the panel, that is to say to the lower limit of the symbol.

The flexible danger panel shown in FIG. 4, which has come out of its base, is also cut with its integrated foot 21 from a 6 mm thick polycarbonate plate; the upper part of the foot 21 not retractable in the sleeve 6 of the base also measures 180 mm in height and has a flare without narrowing 26 from the upper surface of the base to the lower limit of the symbol. The retractable lower part of the foot of the panel has the same dimensions as those of the panel described above, but its central cross section is increased to 200 x 22 mm taking into account the thickness of the first elongated front reinforcement plates 27 and rear 28 cut out. in an 8 mm polycarbonate sheet.

Like the panel shown in Figure 1, the upper part flared without narrowing 26 of its foot is also provided with two gripping handles 22 but its lower part retractable in the sheath 6 is provided with a third handle which is the hanging handle 29 in the shape of a V under a rectangle of 90 x 30 mm.

The panels and their integrated base can be produced either by injection of a thermosetting plastic and more precisely polyester, or even in composite materials, or by laser or water jet cutting of plates extruded in thermoplastic resins and more precisely polycarbonate sheets, preferably recycled, deemed flexible, unbreakable and self-extinguishing. As for the bases, they can be produced by molding an agglomerate of recovered rubber particles linked by a polyurethane-based glue or by an elastomer, the rubber particles coming in particular from shredded tires and electric or telecommunications cables.

Claims (12)

Base pedestal with integrated stands and flexible temporary road sign and its improvements characterized in that it comprises a base made of rubberized material consisting of a lower plate (1) square or rectangular with rectangular section surmounted by molding of an upper plate (2) isosceles trapezoidal section of the same width but of shorter length, in that the two ends of the lower plate (1) thus have a projection (3) relative to the ends of the upper plate (2), in that the base thus formed is traversed entirely in its vertical transverse axis by a vertical sheath (6) without bottom framed by vertical central grooves (7) and (8) formed in its walls, is provided with two grips (4) with notch (5) and two lateral handling notches (19), is made partially hollow by the creation of lightening recesses (9) separated by ne grooves (11) and (12) and provided with lights (13) in its inclined cover (10), is provided along its transverse axis on its upper surface with two upper wedging rails (14) with shoulders (15) and below its surface lower, of two lower wedging rails (16), is provided with a battery support (17) on each side of its transverse central rib (12) between two longitudinal ribs, and characterized in that this assembly also consists of '' a flexible plastic signaling panel (20) with integrated foot (21) which can be inserted into the grooved sheath (6), in that this integrated foot (21) is provided with a first elongated reinforcing plate front (27) and a first elongated rear reinforcing plate (28) extended at the rear of the panel (20), in that the foot (21) is cut with a flare without narrowing (26) over its entire height not retractable in the sheath (6), in that a wedging heel (2 3) is provided on each side of its foot (21) at the upper surface of the base and that it is surmounted by a progressive narrowing (24) of the foot (21) prolonged by a flaring (25), in that the upper part of the foot (21) of the panel (20) is provided with two grips ( 22) and in that the lower part of the same leg (21) is provided with a hanging handle (29) of the panel. Plinth assembly with integrated crutches and flexible panel according to claim 1 characterized in that the two end projections (3) of the plinth result from the difference in length between the lower plate (1) with rectangular section and the upper plate (2) isosceles trapezoidal section, in that these two end projections (3) have the same dimensions, and in that the sum of their width measured in the direction of the length of the base is equal to the length of the upper base of the upper plate (2) measured in the same direction. Integrated stand base and flexible panel assembly according to claim 1 characterized in that the cross section of the first elongated front reinforcement plate (27) and the first elongated rear reinforcement plate (28) of the panel corresponds to the straight section d 'a first vertical central groove (7) front or rear of the vertical sleeve (6) of the base, in that these two front (27) and rear (28) reinforcement plates are made of plastic or light metal and in that 'They are fixed in the vertical axis of the panel (20) and its integrated foot (21). Base assembly with integrated crutches and flexible panel according to claims 1 and 3 characterized in that each of the two walls of the vertical sheath (6) of the base is provided with a first vertical central groove (7) and a second vertical central groove (8) of width less than the first central groove (7) and in that their dimensions correspond to those of the lower and retractable part of the foot (21) of the panel (20) to introduce it, provided with its first two elongated front (27) and rear (28) reinforcement plates, and possibly with its second reinforcement plates. Pedestal assembly with integrated crutches and flexible panel according to claims 1 and 2 characterized in that the two grip handles (4) of the pedestal are open one at the front and the other at the rear of said pedestal in the part central of its end projections (3) with an external notch (5) and in that the two lateral handling notches (19) are each open in the middle of a vertical side of the base. Base assembly with integrated crutches and flexible panel according to claim 1 characterized in that the openings (13) are open above the lightening recesses (9) in each inclined cover (10) of the base, against its transverse ribs (11) and (12) and the inner wall of its end projections (3) and in that these lights (13) are open symmetrically with respect to the transverse axis of each inclined cover (10) of the base and in the same alignment longitudinal. Pedestal assembly with integrated crutches and flexible panel according to claim 1 characterized in that the two upper wedging rails (14) are molded parallel to the pedestal in its mass symmetrically with respect to its vertical transverse axis and in that these two upper rails (14) are provided at their ends with an inner shoulder (15) which is not joined. Base stand assembly with integrated crutches and flexible panel according to claim 1 characterized in that the two lower wedging rails (16) are molded parallel under the base in its mass symmetrically with respect to its vertical transverse axis, in that the length and l outer spacing of these lower rails (16) are slightly less than the length of the rails wedging upper (14) measured between their shoulders (15), and at the internal spacing of the same upper rails (14), and in that the thickness of the lower (16) and upper (14) wedging rails is identical . Plinth assembly with integrated crutches and flexible panel according to claim 1 characterized in that the two battery supports (17) of the plinth are of square or rectangular shape, in that each of them is fixed horizontally by three of its sides against the walls of a central recess without cover open at the front and at the rear of the base, delimited on three sides by the transverse central rib (12) and by two ribs which are perpendicular to it, arranged symmetrically with respect to the longitudinal axis vertical of the base, and in that the fourth side of a battery support (17) is provided with a notched rim (18) opposite a grip handle (4) of said base. Base assembly with integrated crutches and flexible panel according to claim 1 characterized in that the flare without narrowing (26) of the foot (21) of the panel (20) has its origin at the upper surface of the base and in that it extends to the lower limit of the panel symbol (20) corresponding to the base of said panel. Base assembly with integrated crutches and flexible panel according to claim 1 characterized in that the end of each wedging heel (23) of the foot (21) of the panel (20) constitutes the origin of the progressive narrowing (24) of said followed foot from its widening (25) to the lower limit of the symbol of the panel (20) corresponding to the base of said panel. Integrated stand base assembly and flexible panel according to claims 1, 10 and 11 characterized in that the two grip handles (22) of the panel (20) are each open on one side of the flare (25) or (26) with or without the progressive narrowing (24) of the leg (21) of the panel (20) and in that a suspension handle (29) is open in the form of a V in the retractable lower part of the same leg (21) of the panel (20).

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