FR2863291A1 - Safety railing for balcony extension of scaffold frame has extending side sections to adjust to the size of the structure - Google Patents

Abstract

A safety railing (10) for a balcony extension for a scaffold frame has a fixed main section (30) and two adjustable side sections (10, 20) to adjust to the selected size of the balcony, e.g. with the balcony extendable. The adjustment is effected by a telescopic construction with the selected size secured by spring loaded pegs gripping into holes in the frame sections. The balcony is supported on at least two adjustable struts (16). One end of the balcony can be fitted with an extension (18) to vary the length of the balcony.

Description

Technical area

  The invention relates to a railing for a platform and a platform element comprising such a railing.

  Particularly in the building sector, platforms for various applications are used to create a work surface for the workers involved in the construction of a building. While the workers are on such platforms, they can perform the necessary work, such as anchoring formwork elements and the like. On the back side, so on the diverted side of the building to build, such platforms have gardcorps for security reasons. The guardrail according to the invention is provided in particular for a platform element or for a platform system which is mounted on a formwork element. The platforms are needed for work on formwork and concrete.

  STATE OF THE ART In the prior art, railings are known which comprise at one of their lateral ends a section of guardrail which is pivotally movable with respect to the section of railing (main) which extends along the floor of the platform. In particular, the railing section can be folded against the main guardrail section. In addition, it can be brought into a position 90 relative to the latter, so that one ensures somehow a safety against the fall of a worker also on the lateral side of the floor of plate -form.

  SUMMARY OF THE INVENTION The objective underlying the invention is to improve a guardrail for a platform in the building sector with regard to the flexibility of the possibilities of use and to simultaneously satisfy the safety requirements.

  This objective is achieved by a guardrail described in the following.

  Thus, the railing according to the invention, intended to be mounted in particular on a formwork platform, comprises a first section of railing and at least a second section of guardrail. During use, the first section of railing usually extends along the deck floor, thus at a sufficient distance and parallel to the wall of a building to be constructed. This section of railing can be designated by section of main railing or by railing (protection) back. According to the invention, the second section of railing is movable both in translation and pivoting with respect to the first section of guardrail.

  Thanks to this, the second section of railing can be used flexibly. Thanks to the possibility of translation relative to the first section of railing, one gets somehow a telescopic rear guardrail. In the retracted state, the railing is simple to transport and store. Moreover, in the retracted state, it is possible to use only the "simple" rear railing. In the deployed state, the second section of railing can be used as an extension of the rear guardrail. For this purpose, it is preferable to provide various stopping possibilities for making an extension in stages, for example by means of a plurality of stop openings which may also be designated by plug-in openings or by plug-in holes, in which (the) s can engage a rod. This is possible in a similar way by frictional cooperation.

  Thanks to the additional possibility of rotating the second section of railing relative to the first section of railing, one can further use the second section of railing as a side railing. For this purpose, the second section of railing is deployed at least partially, preferably completely, with respect to the first section of railing which forms the rear railing, and then it is rotated about 90. Thus, the second section of railing can be brought into a position in which it covers the lateral side of a platform or platform floor, this lateral side usually extending at approximately right angle by relationship to the wall of the building being worked. Thus, on this lateral side, safety can also be ensured by creating a reliable limitation for the work area of the workers. One can also provide a stop in the described position said 90.

  According to a structurally simple and reliable mode of operation, the mobility in translation and pivoting according to the invention of the second section of railing with respect to the first section of railing can be carried out as follows. On the one hand, the first section of railing has a kind of guide for the movable connection in translation of the second section railing. This guidance for the rectilinear translation can be welded for example on one or more bars which form the first section of railing. Basically, guidance could however also be provided in a bar itself. With this, as described, the telescopic design of the first section of railing is obtained by means of the second section of railing. On the other hand, the second section of railing is preferably rotatably mounted on the first section of railing. For example, the guiding for the mobility in rectilinear translation of the second guardrail element can be arranged in rotation on the first railing section. Thanks to such an axis of rotation or to a kind of hinge, the described pivotal mobility of the second section of railing already provided with translational faculty is obtained, and this results in the possibility of flexible use of the second guard section. -body (as a side guard or extension of the rear guard). At the same time, by appropriate measures, the necessary safety requirements can be met.

  Preferred developments are described in the following.

  For example, in the aspect mentioned last, with respect to the mobility in translation of the second section of railings, there is provided a stop mechanism preferably having at least two or more stop positions. Thus, in this case, a stepwise extension of the guardrail is obtained by the second section of guardrail.

  Likewise, for the pivoting mobility of the second section of the body, it is preferable to provide a stop mechanism here. This can fix the second section of railing in a certain position, for example in the 0 position, which is necessary for transport and storage. Similarly, it is possible to provide fixation in the position at 90 ° and / or in the position at 180 °. Alternatively, one can imagine that the stop mechanism only prevents the second section of railing returns to the 0 position, which must be guaranteed for security reasons. Pivoting of the second section of railing into a position at 180 may be permitted by the stop mechanism and / or it may be fixed in this position.

  For the stop mechanisms described, it is currently preferable to provide at least one spring-biased rod which can engage for example in an opening in the mobile complementary element or which could cooperate with an edge of a complementary element. to prevent backflip.

  According to a preferred embodiment, the flexibility when using the new guardrail is further increased because the second railing section is pivotally movable to 180.

  Preferably, to improve the handling, the second body section comprises at least one stop limiting mobility in translation, which acts as a kind of anti-escape block in the context of the translation of the second railing section.

  For the first and / or for the second section of guardrail of the body according to the invention, provision is furthermore preferably made for a design according to which it comprises at least one bodyguard bar (horizontal in use), at least a railing post (vertical in use) and preferably foot protection. Foot protection usually consists of a metal profile arranged on edge and directly adjacent to the horizontal platform floor on its rear edge, which here prevents an overrun beyond the deck floor and a fall of objects on the floor of platform.

  The guardrail according to the invention deploys its advantageous effects in particular as part of a platform element which therefore comprises at least one guardrail according to the invention arranged on a deck floor which is arranged in turn on at least two consoles. By means of the consoles, the platform element can be mounted on a concrete formwork, so that a concreting scaffold is realized. The mounting means for mounting the platform element on a formwork element can be made to suit different formwork systems. In the form of the platform element described, there is an integral element which in particular contains in a captive manner all the parts necessary for operation and for safety.

  Preferably, the railing is foldably arranged on the platform floor, so that the platform element can be brought quickly and simply into a transport and storage position.

  In addition, it is expected for the platform floor to arrange on it consoles foldably. This differs from the state of the art in that consoles are usually grouped together. In the preferred embodiment described of the platform element according to the invention, these are only folded or pivotally deployed, and the platform element can be stored and transported in such a way as to take up little of place.

  In addition, it is preferable for the platform floor that it is movable in translation in the assembly relative to the consoles. For example, the case may arise where a stiffening element, for example in the form of a lock, is arranged on a formwork element on the side facing the platform. To provide the necessary space for this, the platform can be moved in translation on the consoles in a direction away from the formwork element. In this case, the consoles can remain in the mounted state. In addition, the brackets can remain mounted on a formwork element, and the platform element can be movable in translation on the brackets by means of the platform floor, so that for different jobs, for example to the stripping, it can be moved away from the newly erected wall section in a direction substantially perpendicular thereto.

  Preferably, the deck floor comprises a mounting device for mounting a deck extension. In this embodiment also, thanks to the mounting described movable in translation on the consoles, the platform element can be moved as a whole, so together with the guardrail and the extension, away from the formwork at least to a certain extent, so that no unnecessary and similar gap between the deck extension and the formwork appears. The platform extension may comprise a railing mounted on it and thus integrated, which, in use, may form for example the side railing, while the second section railing according to the invention advantageously extends the rear guardrail and / or foot protection in the area of the deck extension.

  Preferably, the brackets of the described platform member comprise mounting means for mounting on a concrete form, which are preferably made to suit different types of concrete formwork.

Brief description of the drawings

  In the following, the invention will be explained in more detail with reference to embodiments illustrated by way of example in the drawings. The figures show: FIG. 1, a perspective view of an embodiment of the platform element according to the invention; Figure 2, a detail of the railing of the platform member shown in Figure 1; Figure 3 is an illustration in section through the area shown in Figure 2; and FIG. 4 is a perspective view of the platform member of FIGS. 1 and 2 in a second position of the second railing section.

  Detailed description of the invention

  The platform element 10 shown in FIG. 1 essentially comprises a platform floor 12, a railing 14 and two consoles 16. By means of the brackets, the deck element 10 is capable of be mounted on a concrete formwork element and then form part of a concrete scaffolding. The platform floor 12 is mounted in its mobile assembly in translation in the direction A on the consoles 16, so as to be moved to a building to erect and away from it. In the embodiment shown, a deck extension 18 is mounted on the deck floor 12, which can be nested on the deck floor 12 itself by suitable elements.

  In this case, the platform extension 18 comprises a railing 20 mounted for example foldably on the floor and comprising two horizontal bars 22 in the position of use, two vertical posts 24 (or posts) in position d '. 26. With regard to the platform floor 12, it will also be noted that the latter comprises in a central zone a plate 28 that can be opened and self-closed which allows the passage towards or from a platform element mounted below.

  In a rear zone, that is to say on the diverted side of a building to be erected, a railing 14 according to the invention is foldably arranged on the deck floor 12, which is constituted by a first section of railing 30 and in the case illustrated by two second railing sections 32. In this case, the two second railing sections 32 are identical in symmetry with respect to each other , so that the description which follows is limited to the second section of railing 32 disposed on the right. The first guardrail portion 30 is foldable relative to the deck floor 12, but furthermore it is stationary. In other words, the first section of guardrail 30 forms a rear guard-guard in the deployed state of use and shown in FIG. 1. In detail, in the case shown, the first guard section -body 30 consists of two horizontal bars 22, two vertical posts 24, a foot protection 26 and two diagonal cross members 34 between the horizontal bars 22.

  The second section of railing 32 is provided movable in translation and pivoting relative to the first section of guardrail 30, which will be explained in more detail in the following. In the example shown, it is also constituted by two horizontal bars 22, a vertical post 24 and a foot protection 26. As will be shown in more detail in the following, the second section of guard- body 32, specifically the two horizontal bars 22 and the foot protection 26, are arranged in a respective guide on the first section of railing 30 being movable in translation in the horizontal direction. Thanks to this translationally movable embodiment, in this mode of use, the second portion of the body 32 can be used as a rear guard-rail in the area of the platform extension 18. FIG. deployed. In addition, it can be seen without any problem that the post 24 of the second railing section 32 is mounted, in the retracted state, in the zone of the ends of the horizontal bars 22 of the first section of guardrails.

  As best shown in FIG. 2, at least one upper bar 22, also visible in FIG. 1, of the second section of railing 32 has at regular intervals openings 36 which serve for stopping and in which can come engaging a stop mechanism, explained in detail in the following, comprising a stop rod 38 biased by a spring. With regard to the possibility of "retracting" the second section of railing 32 in the area of the first section of railing 30, it will be mentioned that the post 24 of the first section of guardrail 30 has openings for this purpose. 40 at the locations to which the second body section 32 is to be moved to the area of the first section of railing 30.

  In the exemplary embodiment illustrated, the mobility in translation and simultaneously the mobility in pivoting of the second section of the body 32 with respect to the first section of railing 30 and the stopping possibilities provided, are performed in the following manner. On the horizontal bar 22 of the first railing section 30 is firmly mounted a first bearing element 42, for example by welding. Through this first bearing element 42 and through a second bearing element 44 extends an axis of rotation in the form of a bolt 46 having a nut 48. The two bearing elements 42, 44 are rotatable 1 one with respect to the other around the axis of rotation thus formed. On the second bearing element 44 is firmly mounted, for example by welding, a guide 50 which is designed as a quad socket in the illustrated case. In the open cavity of this guide 50 is guided the bar 22 of the second section of railing 32 with the ability to translate in the horizontal direction. In the example shown, this is similarly done for the bottom bar visible in FIG.

  A stopping mechanism which is better visible in FIG. 3 engages at one end of the stop rod 38 in the cavity of the guide 50 and, in a stopped position, in an opening provided in the rod 22 of the second guard section. -body, as designated by the reference 36 in the right zone of Figure 2. When the second guardrail section 32 is to be moved relative to the first guardrail section i0 30, the rod of stop 38 is disengaged by its end or enlarged head in the horizontal direction out of the opening 36 against the effect of a spring provided in the bearing element 44, so that it is possible to move the second section of railing 32. Immediately following, we can release the stop rod 38 and the spring pushes it against the surface of the rod 22. As soon as the next opening 36 reaches the end of the stop rod, it clicks and stops the second section railing. By new extraction of the stop rod or by retaining the stop rod in the extracted position, it is possible to continue the translation of the second guardrail section 32.

  In the exemplary embodiment illustrated, the second section of the body 32 can pivot only in the fully extended position relative to the first section of railing 30. The reason is that in intermediate deployment positions part of the horizontal rods 32 extend through the respective aperture 40 in the posts 24 of the first guard section 30, so that pivoting is prevented. It is the same for the foot protection 26. However, it could easily adapt this device to allow pivoting in an intermediate deployment position.

  In any case, in the so-called 0 position shown in FIG. 2, the second section of railing 32 is stopped relative to the first section of railing 30, because a second stop rod 52 is in position. engagement in the horizontal upper plate of the second bearing member 44, being biased by a spring (with an opening not visible). By short raising of the stop rod 52, this engagement can be undone and the second section of railing 32 can pivot about a vertical axis relative to the first section of railing 30. In the example shown, the stop rod 52 reaches, while being urged by the spring, into a locking position, so that during a pivoting of approximately 90, the outer edge 54 with respect to the second section of guardrail 32 is reached, and the stop rod 52 moves downwards after having passed this edge 54. By virtue of this, the necessary security is ensured by producing a side railing, as can be seen in FIG. left zone and additionally in FIG. 4. Due to the blocking, said lateral railing can only pivot back to the 0 position by disengaging the stop rod 52, so that it is ensured here always a protection. It should be noted that other pivoting positions of the second guard section 32 are possible such that the second guard section 32 can pivot beyond the described position 90 to a position at 180 in which the second section of railing 32 is oriented, in the rear zone of the platform floor 12, parallel to the first section of railing 30. In this case, one can imagine to provide an additional blocking or stopping which prevents said displacement from the 90 position to the 180 position.

  Figure 3 shows in addition to the details of the stop mechanism provided for mobility in translation, which apply similarly to the stop mechanism provided for pivoting. As mentioned, a guide 50 for the bar 22 of the second guardrail section is arranged firmly on the second bearing element 44, for example by welding. In the illustrated example, a guide 56 is provided for the stopper rod 38 on the bearing member 44. The latter has an enlarged end 58 which serves to facilitate the engagement and which has the shape of a head repressed in the example shown. In addition, there is provided a tip 60 for engagement, and a lock washer 62 which could also be formed by a heel 62. Between the lock washer 62 and the bottom 64 of a bore in the guide 56 is provided a compression spring 66 (shown in the compressed state), so that the stop rod 58 can be disengaged only against the force of the compression spring.

  As mentioned, FIG. 4 additionally shows the position at 90 for the second railing section 32 on the right, as already shown in FIG. 1 for the guard rail section 32 on the left. For this rotated position, there is provided a stop mechanism similar to that shown in Figure 3, but in this case, the stop rod extends vertically.

Claims (12)

claims   Railing (14) for a platform, comprising a first section of railing (30) and at least a second section of railing (32), characterized in that the second section of guardrail (32) is movable in translation and pivoting relative to the first section of gardcorps (30).   2. Railing according to claim 1, characterized in that in the context of mobility in translation, there is provided a stop mechanism with preferably at least two stop positions.   Guardrail according to either of Claims 1 and 2, characterized in that, in the context of the pivotal mobility, a stop mechanism is provided, preferably with at least two stop positions. .   4. Guardrail according to either of claims 2 and 3, characterized in that the stop mechanism has at least one rod (38) biased by a spring.   5. Guardrail according to one of the preceding claims, characterized in that the second guardrail section (32) comprises at least one stop which limits the mobility in translation.   6. Railing according to one of the preceding claims, characterized in that the first railing section (30) and / or the second railing section (32) comprises (s) at least one guard bar body (22), at least one railing post (24) and, preferably, a foot protection (26).   Platform element (10), characterized in that it comprises at least one guardrail (14) according to one of the preceding claims, which is arranged on a deck floor (12) which is arranged on at least two consoles (16).   8. platform element according to claim 7, characterized in that the railing (14) is arranged foldably on the platform floor (12).   9. Platform element according to either of claims 7 and 8, characterized in that the consoles (16) are arranged foldably on the platform floor (12).   10. platform element according to one of claims 7 to 9, characterized in that the platform floor (12) is movable in translation relative to the consoles (16).   11. Platform element according to one of claims 7 to 10, characterized in that it comprises a mounting device for mounting a platform extension (18).   12. Platform element according to one of claims 7 to 11, characterized in that the brackets (16) comprise mounting means for mounting on a concrete form element.