EP0444123B1 - Procede et appareil pour fabriquer un plancher ou une passerelle - Google Patents

Procede et appareil pour fabriquer un plancher ou une passerelle Download PDF

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Publication number
EP0444123B1
EP0444123B1 EP90900236A EP90900236A EP0444123B1 EP 0444123 B1 EP0444123 B1 EP 0444123B1 EP 90900236 A EP90900236 A EP 90900236A EP 90900236 A EP90900236 A EP 90900236A EP 0444123 B1 EP0444123 B1 EP 0444123B1
Authority
EP
European Patent Office
Prior art keywords
plank
support
support means
clamping
planks
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.)
Expired - Lifetime
Application number
EP90900236A
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German (de)
English (en)
Other versions
EP0444123A1 (fr
Inventor
Nicholas Peter Webster
Paul Anthony Gibbons
Matthew Charles Webster
Glen Stuart Holme
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.)
Individual
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Individual
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Filing date
Publication date
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Publication of EP0444123A1 publication Critical patent/EP0444123A1/fr
Application granted granted Critical
Publication of EP0444123B1 publication Critical patent/EP0444123B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/28—Scaffolds primarily resting on the ground designed to provide support only at a low height
    • 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
    • E04G1/28—Scaffolds primarily resting on the ground designed to provide support only at a low height
    • E04G1/32—Other free-standing supports, e.g. using trestles

Definitions

  • This invention relates to a method and apparatus for making a floor or walkway for providing a temporary working surface for building or decorating or other operations.
  • the invention is particularly, but not exclusively, applicable for use by plasterers, painters and decorators for providing a "false floor” somewhat raised with respect to the normal floor of a room in a building, in order to facilitate work on the ceiling and/or upper portions of the walls of the room.
  • the invention has many other applications, as disclosed herein.
  • planks are supported at various heights, are not fixed, and are inclined to move during work. Moreover, the planks are unduly springy and flexible, which is disconcerting for the novice.
  • a plasterer has to "set" a floor in accordance with his own usual working pattern and memorise this in order to avoid stumbling between the planks when working.
  • previous proposals include the use of scaffolding constructed in stages with scaffolding planks used as the base floor before fabrication of the next stage.
  • the headroom between successive stages must be sufficient to allow the free passage of persons of varying height, while still allowing enough of the working face of the wall to be accessible.
  • the top (two or three feet) of the available surface of the wall in any one stage can only be treated or worked-on if the workman raises his arms above shoulder height or else uses unsecured ladders or stools which are potentially dangerous.
  • the apparatus or "trestle” disclosed in the Gerke specification is constructed to provide a clamping action between the spaced trestles and an associated single plank disposed in a generally horizontal plane. This is achieved by providing arms 3 fixed to the upper ends of the legs 1 of the trestle, and carrying cross-members 4 which serve as an abutment or clamping means.
  • the single horizontal plank 5 is clamped between abutment 4 and a cross-member 2. The horizontal separation of these two members enables the clamping action to be achieved even with a single plank.
  • the provision of the arms 3 extending laterally of the legs 1 in a cantiliver fashion means that the trestles themselves are a 3-dimensional structure, not readily stacked in compact form for transport, and somewhat subject to damage in environments such as building sites where careless handling of equipment can often be the norm.
  • said support means including said structure above and below said plank means is constructed as a structure lying in one plane and so as to receive said two planks in edge-to-face contact and in a generally T-shaped relationship.
  • the clamping action of the support means on being inclined with respect to the plank means, has little or negligible clamping action with respect to the upper and generally horizontally disposed plank means, when the latter is present on its own, and thus the clamping action when the two plank means are disposed in the generally T-shaped arrangement is solely by virtue of their co-operative engagement.
  • the rigidity of the assembly in use is a direct consequence of such co-operative engagement and there is no possibility of, for example, the clamping of the upper plank means to come into effect before that of the lower plank means, whereby reduced stability of the assembly might well result.
  • the two plank means inserted into the support means are of generally similar lateral widths, and thus the apparatus is suitable for use with any normal standard building planks to be found on a building site or like location, whereby no element of choice needs to be made. There is no need to provide the different size planks required by the prior art proposal, and to mount these in a particular sequence and relationship.
  • the simple single plane structure of the support means has the result that it occupies a minimum of space and is readily stackable and has a low susceptibility to damage by virtue of a minimum of projecting parts.
  • a preferred embodiment further includes the step of making two such support structures and arranging same in generally parallel relationship and forming a floor or partial floor therewith by assembling a series of planks laterally across said two support structures in approximately mutually parallel relationship.
  • the support structure is provided with support leg means and the arrangement is such that the support structure can adopt a working position in which the support structure is tilted with respect to the vertical whereby the part of said support structure above the plank means effects a clamping action between the two plank means forming the elements of the T-shaped structure.
  • the support structure may be adapted to be height-adjustably received on the support leg means.
  • the individual separate plank means extend through a generally T-shaped hole in the support means, which is generally in the form of a cradle, and is a loose fit on the planks.
  • the support means has legs and the assembly tends to lean inwards or outwards so as to tighten on the two planks. This inclination adds stability by increasing the clamping effect between the two planks while still resisting downward loads. The greater the loads, the tighter the clamping. Assembly is easily effected, and the size of the planks can vary considerably, variations being taken up by the variable inclination.
  • the legs supporting the cradle-like support means are adjustable in height. This permits use of the assembly on stairs and uneven ground.
  • the support means is formed as a metal casting or fabrication.
  • the leg may be provided with wheel means to facilitate position adjustment.
  • the support structures 16 and 18 are adapted to receive the first plank means 20 in association with a further or second plank means 22, with which the first plank means 20 co-operates, in a generally T-shaped structure 24, best seen at the left hand end of Fig 1, and at the central portion of the plank means at which they have been shown, for illustration purposes, partly cut away.
  • the second or further plank 22 provides vertical stiffness to support loads, for example the weight of a person, placed on the first plank means 20, and thus carried on the surface 14.
  • the support means 16 and 18 are each in the form of a fabrication of mild steel defining a generally T-shaped slot means 26 to receive the plank means 20, 22.
  • Each of the support structures 16 and 18 is adapted to be height-adjustably received on its own support leg means 28, which is likewise a fabrication of mild steel.
  • Figs 1 to 4 these steel fabrications comprise an assembly in which tubular side members 30, 32 of the support structures are slidably received on the uprights 34, 36 of the support leg assembly, these side members being apertured at spaced positions 38 to receive pegs 40 retained by chains 42 for insertion through corresponding apertures 44 in side members 30, 32.
  • the T-shaped slot 26 is defined by a top bar 46, which is linear, and two side bars 48, 50, which are generally L-shaped and secured to a bottom bar 52.
  • the whole assembly is secured together by welds 54 at all joints so as to form an extremely strong and rigid structure.
  • the uprights 34, 36 of the support leg means 28 have a linking base or foot 54, to which they are likewise welded to form a corresponding rigid structure.
  • the base has the slightly upwardly-bowed shape seen in Figs 1, 2 and 4 in order to rest predominantly in the region of its ends on hard ground, while being able to readily sink somewhat in less firm ground, which promotes its mode of action, as described below.
  • the mode of use is illustrated in Figs 1 and 7.
  • the plank means 20, 22 are in the form of conventional builders' wooden planks and are inserted into the slot 26 by simple endwise insertion, which is readily carried out.
  • the two support structures 16 and 18 and their associated support legs 28 are provided, one at each end of the T-shaped plank assembly, as shown in Figs 1 and 7. As can be seen, the legs 28 slope or tilt inwardly as shown in Figs 1 and 5, but equally they may slope outwardly as indicated in Fig 6.
  • Fig 7 shows the mode of constructing a temporary working surface 60 in which of the assemblies 62 shown in Fig 1 are provided (but shown in Fig 7 with their support leg structures 28 tilting outwardly).
  • the floor or partial floor is formed thereon by assembling a series of planks 64 laterally across the assemblies 62 in mutually parallel relationship. Any suitable number of plank 64 may be employed to produce a complete floor 60 of any desired size within the limits permitted by the assemblies 62.
  • the floor or walkway could be used as a temporary walkway extending between two temporary buildings for example.
  • the support means 16 and 18 of Fig 1 could be used on their own, without the leg means 28, and resting on the ground, though of course without the height-adjustment facility.
  • Considerable variation in the detailed design of the support means could be made, while still holding the plank means in the generally T-shaped arrangement.
  • the tubular side members 30, 32 and the entire support leg means could, with advantage, be constructed from round section tube, and likewise the top bar 46 and the bottom bar 52, in the first embodiment. This modification may well assist the tilting and clamping action.
  • the pegs 40 could be arranged for insertion laterally rather than lengthwise of the plank means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Escalators And Moving Walkways (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Vending Machines For Individual Products (AREA)
  • Floor Finish (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Cultivation Of Seaweed (AREA)

Claims (5)

  1. Méthode de fabrication d'un plancher ou d'une plateforme (12) pour constituer une surface de travail temporaire pour des travaux de construction, de décoration ou autre, cette méthode comprenant:-
    a) l'apport de moyens de support (16, 18) pour supporter un moyen de type planche (20) à des emplacements espacés sur ledit moyen de type planche (20); et
    b) le montage d'au moins un moyen de type planche (20) sur lesdits moyens de support (16, 18) dans une disposition généralement horizontale pour constituer ladite surface de travail;
    c) l'apport d'au moins un autre moyen de type planche (22) et le montage de ce dernier sous ledit un moyen de type planche (20) et généralement dans un plan perpendiculaire à celui-ci; et
    d) lesdits moyens de support (16, 18) comprenant une structure de serrage à la fois au-dessus et en-dessous desdits moyens de type planche (20, 22) et capable de serrer ceux-ci entre lesdits moyens de support de manière à assurer une rigidité verticale pour pouvoir supporter des charges;
    e) lesdits moyens de support (16, 18) étant construits de manière à recevoir lesdits deux moyens de type planche en contact de bord à face et dans une configuration généralement en forme de T; et
    f) ladite méthode comprenant en outre l'étape consistant à incliner lesdits moyens de support (16, 18) par rapport auxdits moyens de type planche (20, 22) jusqu'à ce que ladite structure de serrage effectue ledit serrage pour assurer un assemblage rigide desdits moyens de support et desdits moyens de type planche grâce à l'engagement interactif desdits moyens de type planche dans lesdits moyens de support (16, 18);
       caractérisée en ce que
    g) lesdits moyens de support (16, 18) sont construits en tant que structure se trouvant dans un plan unique, ladite étape consistant à incliner lesdits moyens de support pour effectuer ledit serrage provoquant nécessairement un engagement de serrage interactif de chacun desdits moyens de type planche avec l'autre; et
    h) la méthode comprend l'étape consistant à insérer deux planches (20, 22) de largeurs latérales généralement similaires dans lesdits moyens de support (16, 18), lesdites planches (20, 22) formant lesdits deux moyens de type planche et lesdites deux planches (20, 22) étant en contact de bord à face et s'étendant longitudinalement généralement perpendiculairement au plan desdits moyens de support (16, 18).
  2. Méthode selon la revendication 1, caractérisée par l'étape consistant à ajuster la hauteur desdits moyens de support (16, 18) en fonction de moyens de pieds de support (28) à cet effet.
  3. Méthode selon la revendication 1 ou la revendication 2, caractérisée par l'étape consistant à fabriquer deux telles structures de support (16, 18) et à les arranger dans une configuration généralement parallèle et à former un plancher ou un plancher partiel avec celles-ci en assemblant une série d'autres planches latéralement en travers desdites deux structures de support (16, 18) dans une configuration approximativement parallèle les unes aux autres.
  4. Appareil pour l'utilisation conformément à la méthode de la revendication 1, pour fabriquer un plancher ou une plateforme pour constituer une surface de travail temporaire pour des travaux de construction, de décoration ou autre, l'appareil comprenant:-
    a) un moyen de support (16) à utiliser avec un autre tel moyen de support (18) pour supporter des moyens de provoquant nécessairement un engagement de serrage interactif de chacune desdites planches (20, 22) avec l'autre.
  5. Appareil selon la revendication 4, caractérisé en ce que ladite structure de support (20, 22) est adaptée pour être montée sur un moyen de pieds de support (28) de façon à pouvoir être ajustée en hauteur.
EP90900236A 1988-11-19 1989-11-20 Procede et appareil pour fabriquer un plancher ou une passerelle Expired - Lifetime EP0444123B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB8827100 1988-11-19
GB888827100A GB8827100D0 (en) 1988-11-19 1988-11-19 Method & apparatus for mounting planks &c
PCT/GB1989/001379 WO1990005819A1 (fr) 1988-11-19 1989-11-20 Procede et appareil pour fabriquer un plancher ou une passerelle

Publications (2)

Publication Number Publication Date
EP0444123A1 EP0444123A1 (fr) 1991-09-04
EP0444123B1 true EP0444123B1 (fr) 1994-08-10

Family

ID=10647147

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90900236A Expired - Lifetime EP0444123B1 (fr) 1988-11-19 1989-11-20 Procede et appareil pour fabriquer un plancher ou une passerelle

Country Status (6)

Country Link
EP (1) EP0444123B1 (fr)
AT (1) ATE109854T1 (fr)
AU (1) AU4750290A (fr)
DE (1) DE68917476T2 (fr)
GB (2) GB8827100D0 (fr)
WO (1) WO1990005819A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU669575B2 (en) * 1992-11-16 1996-06-13 Joseph J Bryant Support assembly
US5678655A (en) * 1995-12-14 1997-10-21 Bearden; David G. Variable height portable scaffolding system
GB0215842D0 (en) * 2002-07-09 2002-08-14 Pitman Mark Trestle
AU2003902717A0 (en) * 2003-06-02 2003-06-19 Charbel Nasr Portable work platform
FR3097296B1 (fr) * 2019-06-12 2021-08-13 Alain Ruetsch Chevalets réglables et auto-bloquants pour support de ruches

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB626199A (en) * 1947-08-18 1949-07-11 Walter James Davis Improvements relating to scaffold legs
GB751768A (en) * 1953-01-23 1956-07-04 Willy Gerke Improvements in or relating to trestles, particularly for scaffolding and the like purposes
US4537282A (en) * 1984-03-27 1985-08-27 Lobdell George H Work holding stackable step stool
GB2161199A (en) * 1984-07-03 1986-01-08 Richard John Holloway General purpose discrete level raising units

Also Published As

Publication number Publication date
DE68917476D1 (de) 1994-09-15
GB2242473B (en) 1992-04-29
EP0444123A1 (fr) 1991-09-04
GB9107877D0 (en) 1991-06-12
GB2242473A (en) 1991-10-02
DE68917476T2 (de) 1995-04-06
WO1990005819A1 (fr) 1990-05-31
ATE109854T1 (de) 1994-08-15
AU4750290A (en) 1990-06-12
GB8827100D0 (en) 1988-12-21

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