FR3019202A1 - SAFETY BODY GUARD POTELET WITH ANTI-LIFTING MEANS AND SECURITY GUARD COMPRISING A PLURALITY OF SUCH POLELETS - Google Patents

Abstract

The present invention relates to a safety railing post with anti-lift means and safety railing comprising a plurality of such posts. According to the invention, the anti-lifting means (20) for preventing the disruption of the upright (5) of the support foot (7) is characterized in that it comprises a flexible link (21), one end of which is integral with the upright (5) and the opposite remaining part forms a loop which is attached to a fastening member (8) integral with the foot (7). The invention finds application in the field of building.

Description

The present invention relates to a safety railing post and a safety railing equipped with a plurality of such posts. Safety guardrails are generally used in the repair of roofing of buildings to ensure the protection of falls from the height of the personnel involved, such as sealers. The guardrail is installed all along a lower edge of a sloped roof or a parapet or parapet of the terraced roof of a building and includes vertical or inclined posts attached to the lower edge of the roof. roof or parapet to protect from falls from height regularly spaced along this edge or acroterium. Each post comprises an upright, a support removably attached to the supporting structure constituted by the roof or the acroterium and a support foot and in which is fitted a lower end portion of the upright. The safety guard posts are connected to each other at their upper portions by one or more rails and a protective net extends vertically from each upper rail to the supporting structure. Safety standards on guardrails have recently evolved and require guard posts not to be dislodged from their respective support legs when a vertical upward force is accidentally exerted on them. To prevent such dislocation, the protective net which is attached to each upper rail is also hooked in the lower part to hook-shaped hooking members integral with the support legs of the guard posts, such a net being thus serves as a means of anti-uprising. However, the drawbacks of using protection nets as anti-lifting means of railing posts are that they often become entangled when they are placed on the posts and that it is not necessary. always easy to engage their mesh in the fastening members of the support legs of the posts. In addition, because of their wear, it is necessary to change the protective nets almost every two years, otherwise they no longer effectively perform their function of anti-lifting guard posts. Another solution to prevent the disengagement of each guard post from its support foot 10 is to use a self-drilling screw through the support foot and the lower part of the post to secure them to one another, but this The solution is slow to implement and causes degradation of the guardrail posts. Yet another anti-lift solution for each guard post of its support foot is to drill the foot of the support and the lower part of the post and to introduce a pin therethrough, but this solution relatively expensive to implement and the pins can easily get lost. It is an object of the present invention to overcome the above disadvantages of guardrail post anti-raising devices of their support legs. For this purpose, according to the invention, the security guard post of the type comprising an amount, a support that can be removably attached to a supporting structure, such as a parapet or a roof of a building, a foot secured to support and in which is fitted a lower end portion of the upright, a fastening member integral with the foot, and an anti-raising means connecting the upright to the fastening member to prevent the disengagement of the amount of the support foot, is characterized in that the anti-lifting means comprises a flexible link, one end of which is integral with the upright and the opposite remaining part forms a loop which is attached to the hooking member. Preferably, the amount of each post comprises a loop secured to it and the flexible link 5 is a cable whose end is fixed to the handle of the upright and the opposite end is secured to a rigid tongue engaged through of the handle so as to retain the opposite end of the cable relative to the handle and to form the cable in a closed loop 10 hooked to the fastening member. Advantageously, the opposite end of the cable is secured to the rigid tongue substantially in the middle of the latter. Advantageously, the handle is in the form of a ring and the rigid tongue is retained by the ring while bearing on it. The portion of the cable defining the loop hooked to the fastening member and having at its free end the rigid tongue is wound beyond the loop on at least one turn around the foot and / or the lower portion of the amount. when the cable has too much length relative to the distance separating the fixing end of the cable to the upright and the fastening member. Preferably, the cable is made of steel. According to another embodiment, the flexible link is a cord closed on itself to form a closed loop elastically deformable by traction and one end of which is integral with the upright and the opposite end 30 is hooked to the fastening member to allow the cord to exercise the amount a force elastically recalling its engagement position in the support foot. Advantageously, the elastically deformable bead 35 is made of elastomer material. According to yet another embodiment, the flexible link is a steel cable closed on itself to form a closed loop, one end of which is integral with the upright and the two strands have been brought closer together by traction. exerted on the cable to hook the opposite end of the cable to the fastening member.

Advantageously, the end of the cord or cable closed on itself is fixed to the amount by a hooking tab of this end and which is fixed to the amount by a self-drilling screw. Advantageously, the attachment member of each support leg is in the form of a straight hook or pigtail. The invention also relates to a safety railing intended to be placed on a supporting structure, such as a parapet or a roof of a building, and which is characterized in that it comprises a plurality of guard posts -bodies as defined above. The invention will be better understood, and other objects, features, details and advantages thereof will appear more clearly in the following explanatory description made with reference to the accompanying schematic drawings given solely by way of example illustrating several modes. embodiment of the invention and in which: - Figure 1 is a perspective view of a portion of a safety railing safety guard posts secured to a parapet of a terrace of a building through a press or clamp; FIG. 2 is a side view along the arrow II in FIG. 1; Figure 3 is an enlarged perspective view of the circled portion III of Figure 1 and showing the anti-lift means of each safety guard post according to a first embodiment of the invention; FIG. 4 is a view similar to that of FIG. 3 and showing the anti-lifting means operated manually to be brought to its active position; Figure 5 is a view similar to that of Figure 4 and showing the anti-lift means at its active position; FIG. 6 represents an alternative use of the anti-lifting means of FIG. 5; Figure 7 is a perspective view of another embodiment of a railing post to which the anti-lift means of Figures 1-6 is applied; Figure 8 is a perspective view showing an alternative embodiment of the guardrail post of Figure 7; FIG. 9 is a perspective view of another embodiment of a post of the guardrail to which the anti-raising means of FIGS. 1 to 6 apply; Figure 10 shows in perspective yet another embodiment of a guard rail post to which the anti-lift means of Figures 1-6 is applied; FIG. 11 is a perspective view illustrating yet another embodiment of a railing post to which the anti-lift means of FIGS. 1-6 is applied; FIG. 12 is a perspective view showing yet another embodiment of a railing post to which the anti-lift means of FIGS. 1-6 is applied; FIG. 13 is a perspective view similar to that of FIG. 3 and showing another embodiment of the anti-lifting means of the guardrail post at its inactive position; FIG. 14 is a perspective view similar to that of FIG. 13 and showing the anti-lift means at its active position; Fig. 15 is a perspective view showing the use of the anti-lift means of Figs. 13 and 14 to a railing post of Fig. 11; and Fig. 16 is a perspective view showing the guardrail post of Fig. 10 provided with anti-lift means according to another embodiment and occupying its operative position. Referring to Figures 1 to 6, the reference 1 designates a safety railing installed along a parapet 2 of a terrace 3 constituting the roof 15 of a building. The railing 1 comprises vertical posts 4 attached to the parapet 2 to protect falls from height and which are evenly spaced along this acroterium. Each post 4 comprises a vertical upright 5, a support 6 removably attached to the acroterium 2 and a vertical foot 7 integral with the support 6 and in which is fitted or nested a lower end portion of the upright 5. The foot 7 of support of each upright 5 comprises 25 a fastening member 8 secured to the foot 7, for example by welding. As shown, the fastening member 8 is constituted by a straight hook formed from a cylindrical rod curved vertically towards the terrace 3. The uprights 5 of the stanchions 4 are interconnected at their upper ends by a upper smooth 9 forming security guardrail. The upper rail 9 may be constituted by a single tube of great length substantially parallel to the acroterium 2 or 35 by a succession of substantially aligned tubes parallel to this acroterium.

Each upper end of a vertical upright 5 comprises means 10 for gripping by wedging the two adjacent superposed ends of two consecutive tubes 9 of the bar when it consists of substantially aligned tubes and which comprise, as is known per se. , in particular a wedge-shaped locking key 11 making it possible to wedge the two superposed adjacent ends of the two consecutive tubes 9 against the corresponding face of the upper part of the upright 5. The safety railing 1 may also comprise an intermediate rail 12 fixed between the upper rail 9 and the acroterium 2 extending in a direction substantially parallel to the upper rail 9 and which may be single or consists of successive sections of tubes. As shown, the intermediate rail 12 consists of several sections of tubes engaged in support hooks 13 in the form of brackets and secured respectively to the uprights 5.

Each support 6 of a guard post 4 is constituted by a press or clamp comprising two clamping jaws enclosing the two opposite vertical faces 2a, 2b of the acroterium 2 by means of metal cups 14.

One of the two clamping jaws is movable in a guided manner along a horizontal bar 16 located above the horizontal upper face 2c of the acroterion 2 while the other jaw is fixed and formed by the foot 7 integral with the end of the horizontal bar 16 constituting the connection core of the two jaws of the press. The support leg 7 of each upright 5 is provided at its lower end with a screw 17 with operating handle 18 and passing through a threaded hole of this end, the screw 17, which extends in a direction substantially parallel to the bar 16 of the press 6, for clamping the two jaws 7, 15 on both sides 2a, 2b of the acroterion 2. The screw 17 has at its end opposite the operating handle 18 one 14 of the metal cups provided each of a protective shim made of elastomeric material 19.

A means 20 is provided to prevent the disengagement or upward disengagement of each upright 5 relative to its support foot 7 located on the side of the inner face 2b of the parapet 2 located on the terrace side 3.

According to the invention, preferably, the anti-lifting means 20 is constituted by a flexible link formed by a cable 21, preferably of steel, one end of which is fixed to a loop 22 integral with the upright 5. In the case of an amount 5 having in cross section a square shape fitting into a foot 7 of cross section of conjugate shape, the handle 22 of each upright 5 can be fixed, for example by welding, on the front face of the upright 5 located opposite the internal vertical face 2b of the acroterium 2.

Each loop 22 is in the form of a ring in this case substantially oval integral with the front face of the upright 5 in a plane parallel to the longitudinal direction of this amount. The ring 22 comprises two parallel rectilinear branches 23, one of which is secured, for example by welding, to the front face of the upright 5, which branches 23 are connected to one another by two upper and lower arcuate ends 24 Thus, the bail 22 projects from the front face of the upright 5 perpendicular to it.

The cable 21 has at one of its ends a small loop 25 in the general shape of a ring through which is passed the cable 21 which has also passed through the handle 22 so as to form a kind of knot wrapped around of the lower branch 23 of the loop 22 in idle rest position of the cable 21 shown in FIG. 3, thereby securing the end of the cable 21 to the loop 22.

The end of the cable 21 opposite that fixed to the handle 22 is secured to a rigid tongue 26 in the form of an elongate plate in the present case of oval shape. More specifically, the end of the cable 21 comprises a generally ring-shaped loop 27 passing through a bore 28 of the tongue 26 formed substantially in the middle thereof to secure the tongue 26 to the end loop. 27 of the cable 21. The length of the tongue 26 is greater than the length, seen in the longitudinal direction of the upright, of the handle 22. When the loop 22 is in the form of a ring, the length of the tongue 26 is greater than the distance exceeding the two arcuate portions 24 of this ring. The attachment member 8 is secured to one of the lateral faces of the foot 7 substantially perpendicular to the internal vertical face 2b of the acroterion 2 so as to project on the same side as the handle 22 when the amount 5 is engaged in the foot 7, but the attachment member 8 may be oriented differently as will be seen later. The establishment of the cable 21 relative to the foot 7 and the upright 5 to ensure its anti-rising function of the upright 5 fitted into the foot 7 is already apparent from the foregoing description and will now be explained with reference to FIGS. 3 shows the cable 21 at its idle rest position from which it hangs from the handle 22 of the upright 5. An operator manually grasps the tongue 26 of the cable 21 and passes the cable 21 by bending under the hooking means 8 in the form of a hook so as to form a loop passing under this member then introduces the tongue 26 through the handle 22 by presenting it in its longitudinal direction substantially perpendicular to the plane of the handle 22 as shown in figure 4.

Then, after passing the tab 26 through the handle 22, the operator rotates the tab 26 about the turn of the ring-shaped loop 27 about a quarter of a turn so that the tab 26 is disposed relatively to the handle to a blocking position preventing it from coming out of the handle 22 as shown in FIG. 5. This figure thus shows that the cable 21 forms a closed loop on itself hung in the lower part of the body 8 and fixed in the upper part to the handle 22. In this position, if the upright 5 was to be raised accidentally vertically upwards, the loop of the cable 21 will be stretched and the tongue will bear on the handle 22 , especially the arcuate portions 24 when the loop is ring-shaped, thereby preventing the amount of 5 disengage its support foot 7. Thus, the cable 21 constitutes an anti-uplift loop of the amount 5 relative to the support foot 7. Figure 6 represents an alternative embodiment in which the cable 21, after forming the loop passing under the fastening member 8, is then wound around the support leg 7 of the upright 5 with its tongue 26 inserted through the handle 22 at its position to lock or lock the end of the cable 21 to the handle 22. This winding on at least one turn around the support foot 7 is necessary when the distance between the handle 22 and the shackle 8 is such that a simple loop as shown in FIG. 5 is insufficient in length to prevent disengagement of the upright 5 from its support foot 7. Of course, if the cable 21 were to have a very large length relative to the distance separating 22 of the fastening member 8, it is possible to wind several times the cable 21 not only around the support foot 8, but also around the lower portion of the upright 5 before locking the end cable of the cable 21 to the handle 22 via the tab 26. Figure 7 shows the application of the anti-lift cable 21 of Figures 1 to 6 to a post of 5 railings 4 whose foot 7 of support of the upright 5 is integral, for example by welding, a support 6 having a general Z shape whose upper flange 30 can be removably fixed, for example by fixing screws, not shown, on the face 2c 10 of the acroterion 2 and the lower flange 31 on which is fixed the foot 7, extends substantially parallel to the terrace 3 when the support 6 is fixed on the acroterion 2. According to Figure 7, the cable 21 anti-lifting 15 is identical to the cable 21 described with reference to Figures 1 to 6 and is implemented in the same way to form a loop passing under the fastening member 8, closed on itself by locking of the tongue 26 relative to the handle 22 to prevent the amount 5 20 to be accidentally disengaged from the support foot 7 in which it is fitted. FIG. 8 shows an alternative embodiment of the railing post 4 of FIG. 7, where the only difference concerns the pigtail shape of the fastening member 8 secured to the foot 7 to ensure better attachment of the anti-lift loop formed by the cable 21 locked to the handle 22 of the upright 5. FIG. 9 shows the application of the cable 21 of FIGS. 1 to 6 to a guard post 4 whose support 6 is consisting of an elongate piece of sheet steel having in cross section an isosceles trapezoidal shape adapted to intimately marry a conjugate wave of a roof covering, often referred to as "dry pan". Thus, the support 6 constitutes a kind of jumper that can be removably fixed, for example by unrepresented fastening screws, on the projecting wave of the roof covering. The foot 7 is secured, for example by welding, the top of the rider of the support. The cable 21 is shown in the inactive free state 5 of the bail 22 and can be configured as a loop closed on itself as explained in connection with FIGS. 1 to 6 to provide a means for preventing the disengaging the amount 5 of its support foot 7 during an accidental displacement 10 upwardly of the upright 5 which is inclined relative to the support 6. It should be noted that according to FIG. 9, the shaper 8 in the form of the right hook is attached to one of the faces of the foot 7 so as to be in a plane perpendicular to the plane containing the handle 22 of the upright 5. FIG. 10 shows the application of the cable 21 of FIGS. to a guard post 4 whose support 6 of the foot 7 comprises two plates 40, 41 made of steel sheet and which are fixed by welding at both ends of a cross member 42 constituted by a rectangular steel tube, the foot 7 being fixed by welding on the crossbar 4 2 being inclined relative to the latter. The two plates 40, 41 have holes 25 for their attachment to a sheet metal roof by means of self-drilling screws. Such a support design 6 of a guard post 4 is known per se. As for FIG. 9, the attachment member 8 in the form of a right hook is fixed on one of the walls of the foot 7 in a plane perpendicular to the plane containing the handle 22 of the upright 5. The installation of the 21 to form a loop closed on itself preventing the withdrawal of the inclined amount 5 of the foot 7 is performed in the same manner as described with reference to Figures 1 to 6.

FIG. 11 shows the application of the cable 21 of FIGS. 1 to 6 to a guard post 4 whose support 6 is constituted by a rectangular steel base on which is fixed by welding the foot 7 perpendicularly thereto. The sole 6 has holes allowing the passage of fastening screws of the sole, for example on a border of a terrace of a building. The introduction of the cable 21 to form a loop closed on itself between the handle 22 and the attachment member 8 to prevent the accidental removal of the upright 5 of the foot 7 is performed in the same manner as described with reference to FIGS. 1 to 6. The hooking member 8 in the form of a right hook 15 is arranged relative to the handle 22 as described with reference to FIGS. 1 to 6. FIG. 12 shows the application of the cable 21 of FIGS. 1 to 6 at a guard post 4 whose support 6 of the foot 7 is constituted by a wall, that is to say a square right-angled part of which one of the wings 50 is intended for to be fixed to a vertical face of a wall, such as, for example, the vertical face 2b of the acroterium 2 of FIGS. 1 to 6. The other wing 51 of the applique, on which the foot 7 is fixed by welding, 25 extends horizontally above the ground when the support 6 is fixed to the vertical face of the load-bearing wall. The introduction of the cable 21 to form a loop closed on itself between the handle 22 and the fastening member 8 is identical to that described with reference to Figures 1 to 6 to prevent the accidental disengagement of the vertical upright 5 in relation to the support foot 7. In addition, the hook-shaped attachment member 8 is arranged relative to the handle 22 in the same manner as described with reference to FIGS. 1 to 6. Of course, as As explained with reference to FIG. 6, the anti-lifting cable 21 described with reference to each of FIGS. 7 to 12 may, if necessary, be wound on one or more turns around the foot 7 and / or the lower part of the amount 5 if the length of this cable is too great relative to the distance between the handle 22 of the upright 5 of the attachment member 8 of the foot 7 to ensure its anti-rising function of the upright 5. FIGS. 13 and 14 represent another embodiment anti-raising means for preventing the accidental removal of an upright 5 from its support foot 7. This embodiment will be described with reference to the press-shaped support 6 as described in FIGS. 6, but it is understood that it can also be applied to the other types of rail support posts described with reference to FIGS. 7 to 12. According to this embodiment, the anti-lift means 20 is constituted by a cord 60 closed on 20 itself to form a closed loop, elastically deformable by traction and whose upper end is fixed to the front face of the upright 5 and the lower end can be attached to the fastening member 8 to allow the cord 60 to exercise the amount 5 a force recalling it resiliently to its engagement position in the support foot 7 during an accidental displacement upward amount 5 relative to this foot. As shown, the upper end of the cord 60 is attached to the upright 5 by a wafer 61 secured between two attachment screws 62 anchored in the upright 5 so that the lower end of the plate 61 encloses the upper end of the cord. 60 on the lower screw 62. More specifically, the plate 61 has 35 at its upper and lower ends two circular notches bearing respectively on the two upper and lower fixing screws 62, and the upper ends of the two branches of the cord 60 are secured of the wafer 61, the screw heads 62 pressing the wafer 61 against the front face of the upright 5.

Figure 13 shows the cord 60 at its inactive position downwardly. To anchor the cord 60 to the attachment member 8 in the form of a right hook, the operator exerts a tensile force on the cord 60 to engage its lower end under the fastening member 8 as shown in FIG. This figure shows that the cord 60 is loose or has slack, that is to say that it is not elastically stretched between its upper attachment point to the upright 5 and the fastening member 8, but as soon as that an upward pull is exerted on the upright 5 relative to its support foot 7, the cord 60 is elastically deformed by pulling to urge down the upright 5 into the support foot 7.

Of course, the attachment member 8 instead of being in the form of a straight hook, can also be made in the form of a pigtail as shown in FIG. 8. FIG. 15 shows the use of the cord 60 of FIGS. 13 and 14 to the guard post of Figure 11 and shows that the cord 60, once hooked to the fastening member 8, is elastically tensioned to maintain the amount 5 in its support foot 7. The fact that the elastically deformable cord 60 is stretched or not between its point of attachment to the upright 5 and the fastening member 8 depends on the distance between the fixing point and the fastening member, a distance that can vary from one type from railing post to another. Preferably, the elastically deformable bead 60 is made of an elastomeric material and has a circular cross-sectional shape. This cord can be made in one piece in the manner of an endless band. FIG. 15 shows that the cord 60 is fixed to the upright 5 by means different from those described with reference to FIGS. 13 and 14. Thus, the upper end of the cord 60 is fixed to the upright 5 via a anchoring tab 65 fixed to the front face of the upright 5 by means of a self-drilling fixing screw 66 and 10 which comprises under this screw a dome-shaped part in which is housed the upper end of the cord 60 which is thus maintained on the front of the amount 5 by the hooking lug 65 secured to this amount. Figure 16 shows yet another embodiment of the anti-lift means of the invention. This anti-lift means will be described in the application to a railing post as shown in FIG. 10, but it is understood that it can be applied to any other type of guard post. Body as described with reference to the other figures. According to this embodiment, the anti-releasing means is constituted by a flexible or flexible steel cable 70 closed on itself to form a closed loop and whose upper end is fixed to the upright 5 and the lower end can be hooked to the attachment member 8 as shown in Figure 16. The fixing of the upper end of the cable 60 to the upright 5 can be effected by the means described with reference to Figures 13, 14 or 15 and the This cable is hooked onto the hook member 8 in the form of a straight hook by moving the two flexible strands towards each other by pulling on this cable cable 70 from its idle rest position. in order to allow the engagement of the lower end of the cable under the fastening member 8. After loosening these two strands, they return elastically to their spaced apart position to which the lower end loop cable 70 is housed under the fastening member 8. In case of accidental pulling upwards on the upright 5, the looped lower end of the cable 70 will bear against the upper part of the body 8 to prevent the disruption of the amount of 5 are support foot 7. Of course, the attachment member 8, instead of being in the form of a straight hook, can be shaped pigtail.

In addition, the attachment member 8 is shown being fixed to the outer face of the wall of the foot 7 in a plane parallel to the face of the wall of the upright 5 having the cable attachment point 70, but this member may be attached to one or the other of the outer faces of the two side walls of the foot 7 and in a plane perpendicular to this face of the upright 5. FIG. 16 shows that the two plates 40, 41 are fixed on a roof made of metal sheet 80 of a building by means of self-drilling screws 81.

The above anti-lift means described in the various embodiments of the invention effectively prevents the accidental disengagement of a rail post stud relative to its support foot. This means is of an extremely simple structure, inexpensive and can be adapted to any type of security guard post forming part of a safety railing. Finally, it does not undergo any wear phenomenon contrary to the protective nets that were used until now to prevent the lifting of guardrail posts.

Claims (12)

REVENDICATIONS1. Safety railing post (4) comprising an upright (5), a support (6) removably attachable to a supporting structure (2), such as a parapet or roof of a building, a foot (7) integral with the support (6) and in which is fitted a lower end portion of the upright (5), a fastening member (8) integral with the foot (7), and a means 10 of anti-uplift (20) connecting the upright (5) to the latching member (8) to prevent disengagement of the upright (5) from the support leg (7), characterized in that the anti-lift means (20) comprises a flexible link (21,60,70) one end of which is secured to the upright (5) and the opposite remaining part forms a loop which is hooked to the hooking member (8). Safety guardrail post according to claim 1, characterized in that the upright (5) comprises a loop (22) integral with the latter and the flexible link (20) is a cable (21), one of which end is fixed to the handle (22) of the upright (5) and the opposite end is secured to a rigid tongue (26) engaged through the handle (22) so as to retain the opposite end of the cable (21) relative to the handle (22) and to conform the cable in a closed loop hooked to the fastening member (8). 3. Security railing post according to claim 2, characterized in that the opposite end of the cable (21) is integral with the rigid tongue 30 (26) substantially in the middle thereof. Security guard post according to claim 2 or 3, characterized in that the loop (22) is ring-shaped extending parallel to the upright (5) and the rigid tongue (26) is retained. by the ring 35 (22) bearing on it. Safety guardrail post according to one of claims 1 to 4, characterized in that the part of the cable (21) defining the loop attached to the fastening member (8) and having at its free end the rigid tongue (26) is wound beyond the buckle on at least one turn around the foot (5) and / or the lower part of the upright (5) when the cable (21) has too much length relative to the distance separating the fixing end of the cable (21) to the upright (5) and the fastening member (8). Safety guard rail post according to one of claims 1 to 5, characterized in that the cable (21) is made of steel. Safety guard rail post according to claim 1, characterized in that the flexible link (20) is a bead (60) closed on itself to form a closed loop elastically deformable by traction and one end of which is secured to the upright (5) and the opposite end is attached to the hooking member (8) to allow the cord (60) to exert the amount (5) a force elastically reminding it to its engagement position 20 in the foot of the support (7). Safety guardrail post according to claim 7, characterized in that the elastically deformable bead (60) is made of elastomer material. 9. Safety railing post according to claim 1, characterized in that the flexible link (20) is a steel cable (70) closed on itself to form a closed loop, one end of which is integral with the The upright (5) and the two strands were brought together by pulling the cable (70) to hook the opposite end of the cable (70) to the hooking member (8). Safety guard rail post according to one of Claims 7 to 9, characterized in that the end of the cord or cable closed on itself (60, 70) is fixed to the upright (5) by a tab (65) for attachment of this end and which is fixed to the upright (5) by a self-drilling screw (66). Safety guardrail post according to one of claims 1 to 10, characterized in that the fastening member (8) of each support leg (7) is in the shape of a straight hook or at the tail of pig. 12. Safety railing (1) intended to be placed on a supporting structure (2), such as a parapet or a roof of a building, characterized in that it comprises a plurality of guardrail posts (4) as defined in any one of claims 1 to 11.