EP3992394A1 - Faltkonstruktion für das arbeiten im freivorbau zur manuellen regulierung der auszugslänge eines seitenrahmens - Google Patents

Faltkonstruktion für das arbeiten im freivorbau zur manuellen regulierung der auszugslänge eines seitenrahmens Download PDF

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Publication number
EP3992394A1
EP3992394A1 EP21205383.9A EP21205383A EP3992394A1 EP 3992394 A1 EP3992394 A1 EP 3992394A1 EP 21205383 A EP21205383 A EP 21205383A EP 3992394 A1 EP3992394 A1 EP 3992394A1
Authority
EP
European Patent Office
Prior art keywords
guide
guide member
side frame
rolling member
rolling
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.)
Granted
Application number
EP21205383.9A
Other languages
English (en)
French (fr)
Other versions
EP3992394B1 (de
Inventor
Patrick Micheneau
Thierry Braud
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.)
Sateco SA
Original Assignee
Sateco SA
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 Sateco SA filed Critical Sateco SA
Publication of EP3992394A1 publication Critical patent/EP3992394A1/de
Application granted granted Critical
Publication of EP3992394B1 publication Critical patent/EP3992394B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/002—Workplatforms, railings; Arrangements for pouring concrete, attached to the form
    • 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
    • E04G5/06—Consoles; Brackets
    • E04G5/062—Consoles; Brackets specially adapted for attachment to building walls
    • 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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G2001/157—Extensible platforms, e.g. telescopic platforms
    • 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
    • E04G5/06—Consoles; Brackets
    • E04G2005/068—Connections of consoles at an angle
    • 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
    • E04G2005/148—Railings latticed or netted
    • 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
    • E04G5/142—Railings extensible or telescopic

Definitions

  • the present invention relates to the building sector and, more particularly, to a foldable cantilevered work structure configured to support a vertical formwork panel.
  • a collapsible cantilevered work structure 103 is configured to be mounted to a building wall of a building such as a building using mounting clips mounted in the building wall.
  • a foldable work structure corbelled by the patent FR2906286 of the company SATECO is shown in FIG. 1 .
  • the structure 103 comprises a circulation plate 104 extending horizontally and comprising a frame 140 on which rests a floor 141.
  • the frame 140 has a rectangular shape and includes a plurality of longitudinal crosspieces.
  • the circulation plate 104 extends along its length along an X axis and along its width along a Y axis.
  • the circulation plate 104 comprises at least one front edge 104A arranged to extend close to said building wall and at least one rear edge 104B opposite said front edge 104A.
  • the circulation tray 104 has a single front edge 104A and a single rear edge 104B. Nevertheless, it goes without saying that the circulation tray 104 could comprise more than one front edge 104A and more than one rear edge 104B.
  • the circulation plate 104 further comprises elements for fixing to the building wall.
  • the fixing members are in the form of two articulated uprights 151 each at a front end on the circulation plate 104 around a hinge axis substantially parallel to the circulation plate 104, between a folded position of storage and an unfolded position of use substantially orthogonal to the circulation plate 104, at least one foldable arm 152, connecting the circulation plate 104 and the articulated upright 151.
  • the structure 103 can extend several meters high to form high building walls.
  • the structure 103 in order to prevent the fall of operators circulating on the circulation platform 104, the structure 103 conventionally comprises at least one rear protective canopy 161 and side guardrails 162.
  • the circulation plate 104 comprises lateral extensions so as to increase its length along the X axis in a configurable manner.
  • a circulation tray comprising a central frame, a left side frame and a right side frame which are slidably mounted in the central frame in an adjustable manner.
  • each side frame has a high mass and the adjustment of the extension length is a source of hardship for the operators.
  • the assistance system is in the form of a set of connecting rods which unfold to simultaneously separate the right side frame and the left side frame.
  • Such an assistance system has a high mass as well as a large size due to the presence of numerous connecting rods. In addition, it does not allow independent adjustment of the length of each side frame.
  • any assistance system significantly increases the mass of the cantilever work platform.
  • the operator to activate the assistance system, the operator must use a key or a screwdriver, which has a drawback.
  • One of the objectives of the present invention is to provide a foldable cantilevered work structure which eliminates at least some of these drawbacks.
  • the invention relates to a foldable cantilevered work structure intended to be mounted on a vertical construction wall and to support a formwork panel, the structure comprising a circulation plate comprising means of attachment to said vertical construction wall, the plate circulation extending along its length along a first axis and along its width along a second axis, the circulation plate comprising a central frame and at least one side frame mounted to slide relative to the central frame along the first axis, the central frame comprising at least one first guide member configured to slide with at least one second guide member of the side frame.
  • the structure is remarkable in that it comprises at least one running member positioned at the interface between the second guide member and the first guide member so as to allow an operator to move the side frame with reduced friction by relative to the central frame manually and without tools, the foldable cantilevered working structure being free of gear assistance member for moving the side frame.
  • an operator can move the side frame with reduced friction relative to the central frame.
  • the movement is carried out without tools, in particular without a gear assistance member.
  • the invention takes the opposite view of a prejudice which existed in the prior art and which required the provision of a gear-driven assistance member to carry out the movement of a side frame whose mass may exceed 100 kg.
  • only rolling members are provided to move the side frame relative to the central frame, which makes it possible to reduce the mass as well as the cost of a foldable cantilevered work structure compared to a foldable structure of cantilevered work comprising a geared assistance member.
  • the manual and tool-free handling is very advantageous since the operator can change the length at any time and without delay.
  • the adjustment can be carried out precisely by the operator who can manipulate the side frame like a drawer.
  • the foldable cantilevered work structure is free of any pneumatic or hydraulic assistance device.
  • the structure is thus lighter and more economical.
  • the foldable cantilevered work structure is free of assistance members comprising connecting rods.
  • At least one rolling member is configured to guide a bottom surface of the second guide member.
  • a guide of a lower surface makes it possible to significantly eliminate the friction associated with the weight of the side frame under the effect of gravity. The difficulty of the operator is thus reduced.
  • guiding a lower surface is meant guiding at the level of a lower interface, the rolling member possibly belonging to the first guiding member or to the second guiding member.
  • At least one rolling member is configured to guide an upper surface of the second guide member. Guiding an upper surface makes it possible to guide any inclination of the second guide member due to the overhang in order to limit friction in the lower part and in the upper part.
  • guiding an upper surface is meant guiding at an upper interface, the rolling member possibly belonging to the first guiding member or to the second guiding member.
  • At least one first rolling member is configured to guide a lower surface of the second guiding member
  • at least one second rolling member is configured to guide an upper surface of the second guiding member.
  • the first rolling member is located at the level of the side frame while the second rolling member is located at the level of the central frame.
  • At least one rolling member comprises at least one cage with a plurality of bearings, preferably a needle cage.
  • each rolling member is in the form of a needle cage.
  • the use of a plurality of bearings is advantageous to optimally reduce friction.
  • each bearing is in the form of a needle or a ball.
  • maintenance of a cage with a plurality of bearings is easy, the cage advantageously protecting the bearings against concrete projections.
  • a needle cage is very advantageous in the context of a cantilevered working structure given that it has a small footprint, which allows its positioning at the interface between a second guide member and a first guide member.
  • At least one rolling member is integral with the first guide member. This advantageously makes it possible to guide the second guide member when the latter slides with the first guide member, the positioning of the rolling member being precise for optimum reduction of friction.
  • At least one rolling member is integral with the second guide member, in particular, in the high position.
  • the first guide member comprising at least one lower wall in which is formed a through opening leading to the second guide member
  • the rolling member is mounted in the through opening, preferably from the outside of the first guide member.
  • the rolling member is integrated into the first guide member, which limits the size.
  • mounting from the outside of the rolling member facilitates maintenance of the rolling member. This can be conveniently replaced by an operator.
  • the structure comprises at least one second rolling member positioned at the interface between said second guide member and said first guide member.
  • the second guide member comprising at least one upper wall in which is formed a second through opening leading to the first guide member, a second rolling member is mounted in the second through opening.
  • the second through-opening is positioned at one end of the second guide member so as to support it during its cantilever extension.
  • the first guide member is in the form of a hollow section in which the second guide member slides.
  • the central frame comprising at least two first guide members configured to slide respectively with at least two second guide members of the side frame.
  • a distributed guide makes it possible to limit and distribute the forces in each second guide member.
  • At least one rolling member is positioned at the interface between each second guide member and the first guide member with which it slides.
  • the presence of a rolling member at each interface makes it possible to reduce friction in a distributed manner, which is advantageous.
  • the invention also relates to a method for moving a side frame of a structure as presented above, the adjustment method comprising a step of manual movement without tools by an operator of the side frame, the rolling member allowing movement of the second guide member of the side frame with reduced friction relative to the first guide member of the central frame.
  • a foldable cantilevered working structure 3 configured to support a vertical formwork panel (not shown).
  • the foldable cantilevered work structure 3 is configured to be mounted on a vertical construction wall of a building such as a building using fastening clips mounted in the vertical construction wall.
  • Structure 3 comprises a circulation plate 4 comprising at least one front edge 4A arranged to extend close to said wall and at least one rear edge 4B opposite said front edge 4A.
  • the circulation tray 4 has a single front edge 4A and a single rear edge 4B. Nevertheless, it goes without saying that the circulation plate 4 could comprise more than one front edge 4A and more than one rear edge 4B.
  • the circulation plate 4 extends along its length along a first axis X, along its width along a second axis Y and vertically along a third axis Z so as to form an orthogonal reference (X, Y, Z).
  • the circulation plate 4 further comprises members for fixing to the vertical building wall.
  • the fixing members are in the form of two articulated uprights 51 each at a front end on the circulation plate 4 around a hinge axis substantially parallel to the circulation plate 4, between a folded position of storage and an unfolded position of use substantially orthogonal to the circulation plate 4, at least one foldable arm 52, connecting the circulation plate 4 and the articulated upright 51.
  • the structure 3 can extend to several meters in height to form vertical walls of high construction.
  • the structure 3 conventionally comprises at least one rear protective canopy 61 and side guardrails 62.
  • the circulation tray 4 comprises a central frame 40C and two side frames 40G, 40D (a left side frame 40G and a right side frame 40D) mounted to slide relative to the central frame 40C along the first axis X.
  • the central frame 40C comprises several first guide members 43, extending along the first axis X, and several horizontal crosspieces 42, extending along the second axis Y so as to form a support structure for receiving a central floor 41 ( to see picture 2 ).
  • the central frame 40C comprises two horizontal crosspieces 42 as well as three first guide members 43 but it goes without saying that their numbers could be different.
  • side frames 40G, 40R are symmetrical. Also, for the sake of clarity and conciseness, only the 40D right side frame will be presented below.
  • the right side frame 40D comprises several second guide members 44, extending along the first axis X, and a single horizontal crosspiece 45, extending along the second Y axis so as to form a support structure to receive a side floor (not shown). It goes without saying that the numbers of second guide members 44 and of horizontal crosspieces 45 could be different.
  • the horizontal crosspiece 45 forms one end of the right side frame 40D.
  • the second guide members 44 are connected to the horizontal crosspiece 45 in a movable manner in order to allow the horizontal crosspiece 45 to tilt with respect to the second axis Y, in particular, when the extension lengths second guide members 44 are different ( figure 11 ).
  • the second guide members 44 are connected in an articulated manner to the horizontal crosspiece 45.
  • each first guide member 43 of the central frame 40C is configured to slide with at least one second guide member 44 of the right side frame 40D along the first axis X.
  • the first guide members 43 and the second guide 44 are in the form of hollow sections, in particular, of rectangular section.
  • the second guide members 44 are configured to slide inside the first guide members 43 but it goes without saying that the reverse would be possible.
  • Each hollow profile defines a lower wall and an upper wall which are preferably planar to facilitate sliding.
  • each second guide member 44 is in the form of a profile of rectangular section and comprises through-cavities formed in the lower wall of the rectangular section. It goes without saying that the lower wall could be solid, in particular, to improve rolling, as will be presented below.
  • each second guide member 44 can move within the first guide member 43 independently of the other second guide members 44.
  • the extension length of each second guide member 44 can be adjusted independent as shown in figure 11 .
  • the central frame 40C comprises rolling members 9 configured to allow effortless sliding of the second guide members 44 in relation to the first guide members 43.
  • a rolling member 9 is mounted in each first guide member 43.
  • the rolling member 9 is mounted at the mouth of the first guide member 43 which is hollow in order to internally guide the second guide member 44.
  • the rolling member 9 is configured to guide a lower surface 44a of the second guide member 44.
  • Such positioning is advantageous given that it makes it possible to eliminate all the friction induced by gravity on the second guide member 44 .
  • the rolling member 9 is fixed to the lower wall 430 of the first guide member 43.
  • the lower wall 430 of the first guide member 43 comprises a through opening 431 in which the guide member is mounted. bearing 9. This makes it possible to mount the rolling member 9 from the outside in order to be able to open into the internal cavity of the first guide member 43 and thus come into contact with the lower surface 44a of the second guide member 44. rolling member 9 is thus integrated into the guide but remains easily accessible, in particular for its maintenance.
  • the rolling member 9 comprises a plurality of bearings 91 mounted in a cage 90.
  • the rolling member 9 is in the form of a needle cage which makes it possible to ensure optimum limitation of friction while while remaining compact, which is advantageous in order to be positioned between a first guide member 43 and a second guide member 44.
  • all the rolling members 9 are identical and, more preferably, needle cages.
  • the cage 91 makes it possible to precisely position the rolling member 9 while increasing the mechanical resistance. It goes without saying that the bearings 91 could be in the form of balls.
  • a rolling member is provided for each second guide member 44 but it goes without saying that only part of the second guide members 44 could be equipped with a rolling member 9.
  • a rolling member 9 has been presented in the low position to guide the lower surface 44a of the second guide member 44, but it goes without saying that other positions could be suitable, in particular a high position or a lateral position. .
  • each second guide member 44 Preferably, several running gears are provided for each second guide member 44 so as to produce several types of complementary guidance.
  • two running gears 9, 9' positioned respectively in the low position and in the high position to allow optimal vertical guidance during the deployment/folding of the second guide member 44.
  • An upper and lower guide makes it possible to limit any vertical movement and reduce any friction.
  • the second guide member 44 comprises an upper wall 440 in which is formed a second through opening 441 opening onto the first guide member 43.
  • the second rolling member 9' is mounted in the second through opening 441.
  • the second rolling member 9' is accessible by the operator by removing the second guide member 44 from the first guide member 43. Mounting the second rolling member 9' in the first guide member 43 could be possible but requires removing the circulation plate 4 in the event of maintenance, which is more complex.
  • the second through opening 441 is positioned at one end of the second guide member 44, preferably an inner end positioned under the circulation plate 4 of the central frame 40C, so as to support it during its extension.
  • the two running gear 9, 9' are mounted at a distance, preferably in the low outer position and in the high inner position as illustrated in figure 8A and 8B so as to support the weight of the right side frame 40D during its extension. It goes without saying that the assembly could be different.
  • the structure 3 includes a locking device configured to block a movement of the second guide member 44 relative to the first guide member 43 after adjustment.
  • the locking device is in the form of a locking pin.
  • the right side frame 40D is initially not deployed and the horizontal crosspiece 45 is adjacent to the central frame 40C.
  • an operator manually grasps the horizontal crosspiece 45 and moves it to the right to unfold the second guide members 44.
  • the second guide members 44 are driven effortlessly thanks to the rolling members 9 which are integrated into the first guide members 43 which come eliminate all friction. Due to the performance of the rolling members 9, 9', any traditional assistance member is not necessary.
  • the second guide members 44 are driven simultaneously and the extension length is adjusted uniformly as shown in figure 10 .
  • a floor is then placed on the side frame 40C.
  • the horizontal crosspiece 45 of the right side frame 40D be inclined with respect to the second axis Y, in particular by an angle ANG of 45° to 135°, in order to adapt to the constraints of the building wall vertical on which the structure 3 must be fixed.
  • the operator manually moves the second guide members 44 in order to adjust their extension length independently.
  • this advantageously makes it possible to tilt the horizontal crosspiece 45 according to the desired angle of inclination ANG. Manual movement remains easy due to the presence of running gear 9, 9'.
  • the locking device is put in place to eliminate any slippage.
  • the structure 3 can then be lifted using a crane and positioned on a vertical construction wall to receive formwork panels whose length is adapted to the length of the structure 3.
  • the adjustment of the extension length LE of a side frame 40D, 40G can be adjusted effortlessly by an operator, without tools, by simple manipulation.
  • the foldable cantilevered work structure 3 is free of gear assistance member such as in the prior art which made the foldable cantilevered work structure 3 heavier and more complex.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Ladders (AREA)
  • Agricultural Machines (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
EP21205383.9A 2020-11-02 2021-10-28 Faltkonstruktion für das arbeiten im freivorbau zur manuellen regulierung der auszugslänge eines seitenrahmens Active EP3992394B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2011206A FR3115805B1 (fr) 2020-11-02 2020-11-02 Structure pliable de travail en encorbellement pour le réglage manuel de la longueur d’extension d’un châssis latéral

Publications (2)

Publication Number Publication Date
EP3992394A1 true EP3992394A1 (de) 2022-05-04
EP3992394B1 EP3992394B1 (de) 2023-09-06

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ID=75746673

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21205383.9A Active EP3992394B1 (de) 2020-11-02 2021-10-28 Faltkonstruktion für das arbeiten im freivorbau zur manuellen regulierung der auszugslänge eines seitenrahmens

Country Status (2)

Country Link
EP (1) EP3992394B1 (de)
FR (1) FR3115805B1 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001023687A1 (en) * 1999-09-29 2001-04-05 Ghantous, Bassam Expandable platform
WO2002097218A2 (en) * 2001-05-25 2002-12-05 Dorman Long Access Systems Ltd Rolling platform
FR2906286A1 (fr) 2006-09-21 2008-03-28 Sateco Sa Structure pliable perfectionnee de travail en encorbellement
EP2025832A1 (de) * 2007-08-10 2009-02-18 Alpine Bau Deutschland AG Längenveränderliche Arbeitsbühne, insbesondere für Kletterrüstungen
FR2939822A1 (fr) * 2008-12-15 2010-06-18 Paul Marie Bernard Equipement d'extension laterale pour plateforme porte banche
FR2944041A1 (fr) 2009-04-07 2010-10-08 Outinord St Amand Plateforme en encorbellement equipee d'un dispositif d'extension.
FR2984384A1 (fr) 2011-12-15 2013-06-21 Hussor Plateforme de travail en encorbellement reglable en longueur

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001023687A1 (en) * 1999-09-29 2001-04-05 Ghantous, Bassam Expandable platform
WO2002097218A2 (en) * 2001-05-25 2002-12-05 Dorman Long Access Systems Ltd Rolling platform
FR2906286A1 (fr) 2006-09-21 2008-03-28 Sateco Sa Structure pliable perfectionnee de travail en encorbellement
EP2025832A1 (de) * 2007-08-10 2009-02-18 Alpine Bau Deutschland AG Längenveränderliche Arbeitsbühne, insbesondere für Kletterrüstungen
FR2939822A1 (fr) * 2008-12-15 2010-06-18 Paul Marie Bernard Equipement d'extension laterale pour plateforme porte banche
FR2944041A1 (fr) 2009-04-07 2010-10-08 Outinord St Amand Plateforme en encorbellement equipee d'un dispositif d'extension.
FR2984384A1 (fr) 2011-12-15 2013-06-21 Hussor Plateforme de travail en encorbellement reglable en longueur

Also Published As

Publication number Publication date
FR3115805A1 (fr) 2022-05-06
FR3115805B1 (fr) 2022-11-25
EP3992394B1 (de) 2023-09-06

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