EP2268872A1 - Dispositif et procede permettant de monter et de demonter un echafaudage en toute securite - Google Patents

Dispositif et procede permettant de monter et de demonter un echafaudage en toute securite

Info

Publication number
EP2268872A1
EP2268872A1 EP09721456A EP09721456A EP2268872A1 EP 2268872 A1 EP2268872 A1 EP 2268872A1 EP 09721456 A EP09721456 A EP 09721456A EP 09721456 A EP09721456 A EP 09721456A EP 2268872 A1 EP2268872 A1 EP 2268872A1
Authority
EP
European Patent Office
Prior art keywords
railing
scaffold
cable
level
structures
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09721456A
Other languages
German (de)
English (en)
Inventor
Bart Paul Adolf Van Den Brande
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VCS SYSTEMS BVBA
Original Assignee
Vcs Management Consult bvba
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vcs Management Consult bvba filed Critical Vcs Management Consult bvba
Publication of EP2268872A1 publication Critical patent/EP2268872A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/14—Railings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/14—Railings
    • E04G5/144—Railings specific for the lateral, i.e. short side of a scaffold
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/14—Railings
    • E04G5/147—Railings specially adapted for mounting prior to the mounting of the platform

Definitions

  • the present invention relates to a device for safely erecting or dismantling a scaffold with a number of scaffold levels, comprising at least two railing structures for placing on the end surfaces or side parts of the scaffold.
  • the invention further relates to a method for safely erecting and dismantling a scaffold, to the railing structure itself and to a cable assembly system.
  • a safety railing with a horizontal girder supported on two vertical posts is lifted upward from a first safe scaffold level, wherein the vertical posts are connected to two vertical scaffold elements on the front part of the safe level.
  • a limited safe zone is in this way created on the second level located thereabove, although the scaffolder will have to leave this safe zone in order to construct the complete second level.
  • the present invention has for its object to provide a simple and safe device and method for erecting and dismantling a scaffold in complete safety.
  • the device of the invention is distinguished for this purpose in that each railing structure is provided with coupling means for releasably connecting the or each railing structure to a side part of a first scaffold level in order to form a railing for a second scaffold level located thereabove, wherein each railing structure is adapted for connection to at least one cable, this such that the at least one cable forms, together with the railing structures, a railing on respectively the front part and the side parts of the second scaffold level. From a safe level, such a device thus allows a level located thereabove to be made in complete safety by providing in convenient manner a railing which extends along both the front part and along both side parts of the level located thereabove .
  • each railing structure consists of a lower part which is provided with the coupling means and an upper part connected hingedly thereto and adapted for connection to the at least one cable.
  • Use is preferably made of a hinge with a pivot axis arranged such that the upper part can be tilted outward relative to the front plane of the scaffold (i.e. the plane in which the front vertical and horizontal elements of the scaffold lie) .
  • the hinge is more preferably provided with damping means for damping the tilting movement.
  • each railing structure comprises two substantially vertical support tubes for connecting to the vertical elements of the scaffold by means of the coupling means, wherein the distance between the vertical support tubes corresponds to the distance between two vertical elements on the side part of the scaffold.
  • the coupling means are preferably such that on the one hand a "light” form of coupling is possible, wherein the coupling means are slidable relative to the vertical scaffold elements, and that on the other a firm coupling is also possible. Further advantageous embodiments are described in claims 1-6 and 13-20.
  • the railing structure takes an extendable form. In this way the railing structure can be extended and it is not necessary to push the railing structure upward along vertical elements of the scaffold.
  • the railing structure is then attached to the scaffold at the bottom using the coupling means, and is height-adjustable relative to this lowermost point attached to the scaffold. This is possible for instance by providing the lower part with telescopically co-acting tubes.
  • two railing structures can be placed one on the other. This can for instance be realized by providing the top side of the upper part with pins and providing the underside of the lower part with cavities into which these pins fit.
  • the method according to the invention is distinguished by the following steps of : - erecting a first level;
  • the invention further relates to a method for safely dismantling a scaffold as according to any of claims 10-12.
  • the invention also relates to a railing structure for use in a device according to the invention, and to a carrying structure of the cable system for use in a device according to the invention.
  • the device also relates to an assembly of a first and a second support plate as according to claim 25.
  • Such an assembly allows a railing with a lower and upper cable to be provided in very simple manner in a scaffolding construction.
  • - figure 1 shows a schematic perspective view of a prior art scaffold
  • - figures 2(A) and (B) illustrate the sequential erection of a prior art scaffold
  • - figures 3 (A) - (F) illustrate schematically a first embodiment of the method according to the invention
  • - figures 4 (A) - (B) illustrate schematically a front view and side view of a first embodiment of a railing structure of a device according to the invention
  • FIG. 5(A)-(F) illustrate schematically the sequential erection according to a second embodiment of the method according to the invention
  • FIG. 6 (A) and (B) illustrate respectively a schematic front and side view of a second embodiment of a railing structure of a device according to the invention
  • - figure 7 illustrates schematically a side view of the variant of figures 6 (A) and 6 (B) , wherein two railing structures are provided one above the other,-
  • FIG. 8(A), (B) and (C) illustrate respectively a top, front and side view of an embodiment of a guide structure for the safety cables .
  • Figure 1 illustrates the erection of a typical prior art scaffold 1, wherein a first and second level 6, 7 have already been erected, in each case with railings 10-12, and a worker must begin placing the railings at third level 8.
  • the illustrated embodiment is a wall scaffold in which several railings 10-12 are provided on front part 2 and on the side parts or end surfaces 3, 4, although the skilled person will appreciate that for determined particular applications it may also be desirable to provide a railing on the rear side, and the system according to the invention is likewise applicable to such scaffolds.
  • the invention can in general be applied perfectly for both types of scaffold, and the skilled person will appreciate that the invention can be used in any type of scaffold, so also in traditional (tube/coupling) scaffolds and in aluminium scaffolds with a number of scaffold levels for safe assembly thereof .
  • the problem of the prior art scaffolds is that a scaffolder, after finishing a level, has to go to the next level where no railings are as yet provided, see figure 1, and the scaffolder has only a floor below him and, in the case of a wall scaffold, a wall behind him.
  • Figure 2 illustrates a known method of erecting a scaffold in so-called “sequential" manner.
  • a safe zone bounded by frames 20, 20' and railings 21, 22 is first made (figure 2(A)), although starting out from the situation of figure 1, i.e. from a wholly unsafe situation.
  • a subsequent step (figure 2(B)) a subsequent frame 20" is again placed in unsafe manner and the zone is secured by arranging railings 21', 22'.
  • An embodiment of a device according to the invention typically comprises two railing structures for the purpose of forming respective railings on the side parts of the scaffold.
  • Figures 4 and 3(A) shows such a railing structure 36, intended for mounting on a side part 30 of a scaffold.
  • Railing structure 36 comprises a lower part 39 and an upper part 38 connected hingedly thereto.
  • Lower part 39 is provided with coupling means in the form of clamps 40 which can be arranged around the vertical scaffold elements.
  • Pivot axis 37 allows outward pivoting away from the front of the scaffold.
  • Upper part 38 is adapted for connection to two safety cables. This part 38 is provided for this purpose with plates 41 for the purpose of mounting thereon a winding system for one cable in each case.
  • Clamps 40 are preferably such that they can on the one hand be coupled around the vertical scaffold elements and herein still allow vertical sliding, and can on the other be tightened (for instance through screwing) around the vertical scaffold elements after a suitable positioning of the railing structure.
  • the clamps are preferably provided at a sufficiently great distance d4 from the lower part so that they are not obstructed by the rings used around the vertical scaffold elements .
  • lower part 39 has two substantially vertical posts 46, 47 and a horizontal connecting girder 45.
  • Posts 46, 47 are connected to vertical elements 30 of the scaffold by means of coupling means 40, and the distance dl between vertical posts 46, 47 substantially corresponds to the distance between two vertical elements on the side part of the scaffold.
  • the upper part comprises two vertical posts 48, 49 and a number of railing elements 42, 43 provided therebetween, and optionally a side plank 44.
  • the distance d3 between railing elements 42, 43 and the height d2 of the side plank are typically determined by safety regulations and the like.
  • a scaffolder in a first step (figure 3(A)) a scaffolder can be seen who is standing at a safe first level and holding on to a railing structure 36.
  • the scaffolder connects this railing structure 36 to vertical scaffold elements 30 on the side part of this first level (figure 3 (B) ) . He does this by- positioning the railing structure on the outside of the side part of the scaffold and slightly tightening the couplings 40, this such that sliding along vertical elements 30 is still possible - see below.
  • the upper part 38 and lower part 39 can preferably be locked relative to each other, for instance by a locking cable, at a position in which the parts are mutually in line, as shown in figure 3 (B) .
  • the safety cables 50, 51 are attached at the locations provided on upper part 38 of a first railing structure, and unwound and hooked in at locations provided for this purpose on the upper part of the second railing structure, as shown partially in figure 3 (C) .
  • the upper parts can now be pivoted back inward, after which locking cable 53 is attached in order to hold the upper parts fixedly relative to the lower parts (figure 3(D)).
  • the left-hand variant is a mirror image thereof and is not illustrated in these figures, although it can be seen in figure 5B, which will be discussed hereinbelow in order to elucidate the method.
  • Railing structure 136 comprises a lower part 139 and an upper part 138 connected hingedly thereto.
  • Lower part 139 is provided with a first set of coupling means 140 and a second set of coupling means 150 in the form of clamps which can be arranged around vertical scaffold elements or uprights, see in particular figure 7, where lower part 139 is connected to an upright 130 via clamps 140, 150.
  • lower part 139 comprises two parallel vertical posts 146,146'; 147,147' and a horizontal connecting plate 145 therebetween.
  • the vertical posts take an extendable form, wherein the respective upper posts 146, 147 co-act telescopically with lower posts 146', 147' by means of respective tubes 151, 152. Tubes 151, 152 are attached to the lower posts, on which the second set of coupling means 150 is provided.
  • Upper part 138 can tilt outward, for instance through an angle of 90°, around an axis 137 directed perpendicularly of the plane of the railing structure, as illustrated in figure 5(B) (see below) .
  • upper part 138 is intended for connection to two safety cables.
  • Upper part 138 comprises two vertical posts 148, 149 and a number of railing elements 142, 143 provided therebetween, and optionally a side plank 144.
  • Upper part 138 is provided at the bottom with a lower plate 153 extending in a horizontal plane, and lower part 139 is provided with a similar upper plate 154. In the non- outward tilted position the lower plate 153 of the upper part supports on upper plate 154 of the lower part .
  • a locking pin 155 can further be arranged through the lower and upper plates 153, 154 in order to prevent the upper part swinging outward.
  • top ends of vertical posts 148, 149 of the upper part are respectively provided with pins 156, 157.
  • Vertical posts 146 ', 147' of the lower part preferably take a hollow form such that they are slidable over pins 156, 157. In this way a second railing structure can be easily arranged on a first railing structure situated thereunder. Note that it would also be possible to give the vertical posts 148, 149 of the upper part a telescopic form instead of the posts 146, 146'; 147, 147' of the lower part, in which case coupling means 140 can be displaced in each case to the upper post of each set of telescopically co- acting posts of upper part 138.
  • both the upper and lower part can take a telescopic form. It is further also possible to make the telescopically co-acting parts lockable relative to each other, in which case coupling means 140 can strictly speaking be omitted.
  • Assembly system 160 consists of a left-hand (not shown in figure 8) and a right-hand support plate, which can be attached in simple manner to upper part 138 of respectively a left-hand and right-hand railing structure.
  • each support plate 161 is provided here with two curved suspension strips 162, 163, which make it possible to suspend the support plate around respective horizontal girders 142 ' , 143 ' .
  • Support plate 161 is further provided with a vertical suspension strip 164 in which vertical post 149 can be received. In this way the support plate 161 can be suspended in simple manner from upper part 138.
  • the skilled person will however appreciate that many other variants can be envisaged for the purpose of realizing the suspension/mounting on the railing structure.
  • Support plate 161 is further provided with two mounting points 165, 166 for respective pulleys 167, 168.
  • a winch for instance a geared winch 169, can be mounted at the bottom of support plate 161. In the mounted situation of the support plate this winch is preferably situated just above pivot point 137 so that it is easy to operate by a worker in the tilted position of the upper part. This winch will typically only be provided on a right-hand support plate, as will become apparent from the description hereinbelow of figure 5B.
  • the safety cable can be trained along pulleys 167, 168 from winch 169 via an opening 170 in plate 161, from which pulleys the safety cable is guided to a more distant railing structure at the same scaffold level, as will be elucidated below with reference to figures 5 (A) - (F) .
  • the end of the cable is returned to the right-hand support plate and secured to the right-hand support plate by means of a hook or other suitable fixing means.
  • support plate 161 is provided with a handle 171.
  • This handle 171 further facilitates the arranging of the assembly system by a worker.
  • a second embodiment of the method of the invention will now be described with reference to figures 5(A)-(F) .
  • a worker attaches a left-hand end railing 136 with its two lower couplings 150 to the vertical posts of a left-hand scaffold frame, for instance just above the tilt closure of upper scaffold railing 132. This operation is repeated for a right-hand end railing 136 on the other side of the scaffold.
  • a worker folds the upper part 138R of right-hand end railing 136R outward and suspends the right- hand support plate 161R with winch 169 and guide wheels from the right-hand end railing 136R.
  • This operation is repeated on the left-hand side of the scaffold, wherein a left-hand support plate 161L with only guide wheels is mounted on the left-hand end railing 136L.
  • Cable 170 is typically pre- mounted in a set of a left-hand and right-hand support plate 161R, 161L, wherein the worker must take care that safety cable 170 hangs sufficiently slack when the support plates are suspended from the end railings.
  • a third step the left-hand end railing 136 is folded inward again and the end railing is slid upward, wherein vertical hollow posts 146, 147 are moved upward relative to guide tubes 151, 152. End railing 136 is then attached to the scaffold with the two upper couplings 140. These operations are once again repeated on the right-hand side of the scaffold. The safety cable can then be tensioned. In this way the higher scaffold level is made safe and can be walked on by a worker.
  • a fourth step is illustrated in figure 5 (D) .
  • a worker places a second right-hand end railing 136' on pins 156, 157 of a right-hand end railing situated thereunder on the right-hand side of the scaffold.
  • a second scaffold frame 130' is then placed on the pins of an underlying scaffold frame 130.
  • the lower two couplings 150' of the right-hand end railing are attached by a worker to scaffold frame 130'.
  • a fifth step is illustrated in figure 5 (E) .
  • the safety cable is slackened and upper part 138' of the highest-placed right-hand end railing 136' is folded outward.
  • the right-hand winch holder 160 is suspended from the outward folded right-hand end railing.
  • a scaffold can also be dismantled safely by performing these operations in reverse sequence using a device according to the invention.
  • the safety cables could also extend along both side parts, wherein they are connected to the upper parts of the railing structures on the rear side of the scaffold.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Movable Scaffolding (AREA)

Abstract

La présente invention concerne un dispositif qui permet de monter ou de démonter en toute sécurité un échafaudage pourvu d’une partie avant, de deux parties latérales et de nombreux niveaux d’échafaudage. Le dispositif comprend : au moins deux structures de rambarde conçues pour monter les parties latérales de l’échafaudage. Chaque structure de rambarde est équipée de moyens d’accouplement afin de relier de manière amovible chaque structure de rambarde à une partie latérale d’un premier niveau d’échafaudage en vue de former une rambarde pour un deuxième niveau d’échafaudage situé au-dessus. Chaque structure de rambarde est conçue pour être reliée à au moins un câble, de telle sorte que ce câble forme, avec les structures de rambarde, une rambarde respectivement sur la partie avant et les parties latérales du deuxième niveau d’échafaudage, chaque structure de rambarde se composant d’une partie inférieure qui est dotée des moyens d’accouplement et d’une partie supérieure pouvant ainsi y être articulée et conçue pour être reliée audit câble.
EP09721456A 2008-03-20 2009-03-18 Dispositif et procede permettant de monter et de demonter un echafaudage en toute securite Withdrawn EP2268872A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2008/0170A BE1018056A5 (nl) 2008-03-20 2008-03-20 Inrichting en werkwijze voor het veilig opbouwen en afbreken van een steiger.
PCT/BE2009/000015 WO2009114912A1 (fr) 2008-03-20 2009-03-18 Dispositif et procédé permettant de monter et de démonter un échafaudage en toute sécurité

Publications (1)

Publication Number Publication Date
EP2268872A1 true EP2268872A1 (fr) 2011-01-05

Family

ID=39846936

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09721456A Withdrawn EP2268872A1 (fr) 2008-03-20 2009-03-18 Dispositif et procede permettant de monter et de demonter un echafaudage en toute securite

Country Status (3)

Country Link
EP (1) EP2268872A1 (fr)
BE (1) BE1018056A5 (fr)
WO (1) WO2009114912A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011014614B4 (de) * 2011-03-21 2014-12-24 Rux Gmbh Baugerüst sowie Verfahren zur Erstellung eines Baugerüstes
BE1023499B1 (nl) * 2015-10-07 2017-04-07 Vcs Systems Bvba Steigervloer en werkwijze voor het veilig opbouwen en afbreken van een steiger

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE851135A (fr) * 1977-02-04 1977-05-31 Somefran Soc D Expl Des Brevet Contreventement formant garde-corps d'un niveau de travail d'un echafaudage
DE19821323C2 (de) * 1998-05-13 2001-11-29 Herbert Schuette Absturzsicherung
JP3692293B2 (ja) * 2000-12-21 2005-09-07 アルインコ株式会社 枠組足場の組立及び解体用安全手摺
DE20113864U1 (de) * 2001-08-22 2001-11-22 Isack Thomas Absturzsicherung für Gerüste
JP2003147954A (ja) * 2001-11-16 2003-05-21 Yoshiharu Miyoshi 枠組足場の先行手摺
US20040200668A1 (en) * 2003-04-14 2004-10-14 Benoit Duplessis Scaffolding system
JP4091587B2 (ja) * 2004-10-15 2008-05-28 アルインコ株式会社 安全手摺

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009114912A1 *

Also Published As

Publication number Publication date
WO2009114912A9 (fr) 2009-11-26
WO2009114912A1 (fr) 2009-09-24
BE1018056A5 (nl) 2010-04-06
WO2009114912A8 (fr) 2010-12-16

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