EP0117643B1 - Cadre d'ossature démontable - Google Patents

Cadre d'ossature démontable Download PDF

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Publication number
EP0117643B1
EP0117643B1 EP19840300545 EP84300545A EP0117643B1 EP 0117643 B1 EP0117643 B1 EP 0117643B1 EP 19840300545 EP19840300545 EP 19840300545 EP 84300545 A EP84300545 A EP 84300545A EP 0117643 B1 EP0117643 B1 EP 0117643B1
Authority
EP
European Patent Office
Prior art keywords
members
pillar
tenon
formation
angle
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
Application number
EP19840300545
Other languages
German (de)
English (en)
Other versions
EP0117643A2 (fr
EP0117643A3 (en
Inventor
James Edwin Derek Stuart
Victor William Gower
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.)
Ponable Ltd
Original Assignee
Ponable Ltd
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
Priority claimed from GB838302514A external-priority patent/GB8302514D0/en
Application filed by Ponable Ltd filed Critical Ponable Ltd
Priority to AT84300545T priority Critical patent/ATE37061T1/de
Publication of EP0117643A2 publication Critical patent/EP0117643A2/fr
Publication of EP0117643A3 publication Critical patent/EP0117643A3/en
Application granted granted Critical
Publication of EP0117643B1 publication Critical patent/EP0117643B1/fr
Expired 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
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements

Definitions

  • This invention relates to dismountable frameworks according to the preamble of claim 1 which may be used for a wide range of purposes in forming temporary semi-permanent and/or readily dismountable structures, particularly but not exclusively scaffolding, access towers or platforms, temporary load supports e.g. for locating concrete shuttering or other falsework used in building, constructing temporary buildings or shelters, collapsible freight containers and stillages, and the like.
  • FR-A-888 210 describes a set of members for constructing a dismountable framework comprising a plurality of operatively vertical elongate tubular pillar members and a plurality of elongate linking members also formed from tubular material.
  • Some of the linking members are provided with end formations having upwardly and downwardly directed tenon formations which fit into socket formations constituted by the ends of the tubular pillar members for alignment of the latter in rectilinear end to end relationship, while others of the linking members have end portions formed as apertured lugs for engagement with appropriate tenon formations between the pillar members so that the linking members extend between the sets of pillars so formed.
  • the object of the present invention is to provide a dismountable framework which is easily and safely assembled and positively secured together without special skills, which is cheap and adaptable,. which is particularly strong and rigid yet light in weight and economical of material, which can be provided in a range sizes including those suitable for domestic or "Do it Yourself" users, and which can be transported and stored in minimum of space.
  • the invention provides a set of members for constructing a dismountable framework characterised in that the member are L-section angle members; pillar angle members having a tenon formation secured in an inner corner and projecting beyond the end of said angle member and having at a second end a socket formation co-axial with said tenon formation and into which fits the tenon formation at the first end of an adjacent pillar angle member; and linking angle members having at each end a longitudinally projecting lug having an aperture for engagement on a tenon formation of the pillars; and further characterised by a retaining member on each pillar member which acts laterally upon said tenon formation to serure it against withdrawal from the socket formation and thus sercure together said two connected adjacent angle pillar members.
  • the dismountable members in the example shown in figures 1 to 3 are of two kinds; vertical or pillar members 10 and linking members in the form of horizontal or cross members 11, major elongate parts of all of which consist of standard L section steel angle and having means for interconnection at each end thereof.
  • vertical or pillar members 10 and linking members in the form of horizontal or cross members 11, major elongate parts of all of which consist of standard L section steel angle and having means for interconnection at each end thereof.
  • each member can be an effective length of 75cm for ease of handling and storage and the angle section could be 2.5cm. Wider and heavier section may be used e.g. 40mm angle section in 3mm gauge metal for heavy duty frameworks and longer members may be employed in some circumstances.
  • Each pillar member 10 has a first operatively upper end portion forming a male connection by having a longitudinally extending tenon 12 welded to a block or distance piece between th-i inner faces of the angle webs and projecting centrally through a square end abutment plate 13 which is also welded to said webs.
  • tenon 12 is a circular section steel peg having a flat or notch 14 on one side partway along its free length.
  • each pillar member 10 forms a female connection including a mortice aperture 15, in this example a circular bore in the centre of a square end abutment plate 16 welded to the webs of the angle section.
  • the latter end portion is also provided with securing means comprising a stirrup member in the form of a U bolt,17 located in a pair of bores in one web of the angle so as to provide a loop within the angle which embracs tenon 12 when the latter is inserted into mortice 15.
  • the outer ends of U bolt 17 mount a cross piece 18 permitting its effective length to be selectively adjusted and a captive wedge 19 acts betwen the outer face of the associate angle web and cross piece 18 to draw the U bolt 17 into tight position engagement with the notch 14 of tenon 12 to secure the assembly.
  • a pillar of any desired length can be built up using successive pillar members 10 and these are secured in aligned end-to-end relationship so that down thrust is transmitted directly along their length. It will be observed that the inherent weight-bearing ability of a pillar so formed does not in any way depend on the security or clamping engagement of the securing means with the tenons 12.
  • Each cross piece 11 is formed from angle generally as described with reference to members 10 and both end portions of each cross member comprise a welded on end abutment plate 20 and an apertured lug 21 projecting longitudinally beyond plate 20, this lug being welded to the upper horizontal web of the angle either below (21c) or above (21a, b) the latter.
  • the edge 19 is formed from flat plate and, as best shown in Figure 2, has one edge cut out to form a notch between upper and lower end stops 30a, 30b which retain the wedge captive with the U bolt 17.
  • An upper part of the notch includes an inclined edge face 31 enabling the U bolt to be tightened by driving the wedge downwards to react with cross piece 18, elongated slots 18a in the latter permitting it to tilt on bolt 17.
  • the lower part of the notch is deeper and not inclined to permit maximum inward movement of the U bolt for freeing the tenon 12.
  • the end stops 30a, 30b are bridge by a bar 32 integral with or welded onto said stops, so strenghtening the wedge and making its captive retention on cross piece 18 more positive.
  • Wedge 19 is perferably distictively coloured so that a very quick visual inspection of the assembled framework will show whether is has been tightened into place (or has become loosened or displaced in service). In any event the wedge will tend to drop to the secured position in use which will retain the tenon automatically even if the wedge has not been fully tightened and, as explained above, the integrity of the structure does not depend on this tightening, downward loading on the cross members 11 and/or upper pillar member 10a is transmitted directly to the top of pillar member 10b and lateral forces on the latter are transmitted from members 11 directly to the tenon 12, and securing means carries none of these forces.
  • a simple link or hook-shaped bar, or a screw clamp could serve as a retaining member of the securing means, and it will also be appreciated that various forms of mortice and tenon could be employed though for ease of manufacture and availability of material, the round peg and circular apertures are preferred. Thus, oval, square or rectangular section mortices and tenons or other configurations might be employed in some applications and the section and shaping of the members themselves can be widely varied.
  • a fourth horizontal cross member may be required to connect with the pillar assembly shown in Figures 1 to 3.
  • Figure 5 shows an end portion of a fourth cross member 11d which can be connected at right angles to members 11a, 11c to form a continuation of member 11b.
  • This member has an apertured lug 21 dto engage tenon 12, and a slot 40 cut out of its upper web to provide clearance for the wedge 19.
  • a pad 41 is welded to the virtical web of member 11d in the region of slot 40 for reinforcement.
  • FIGS. 6 to 9 are perspective diagrams of our examples of the many forms of structure which can be provided using the invention.
  • Figure 6 shows a simple free-standing access platform or tower 49 using four pillar assemblies made up of sets of pillar members 10. The lowest portions of these assemblies are short pillar members 50 provided with adjustable levelling feet 51 shown in detail in Figure 12.
  • Each side frame of the tower includes horizontal members 11 and is braced in the vertical plane by diagonal sloping linking members 52 extending from the tenon at the lower end of a lower pillar member to that at the upper end of the parallel pillar member on that side, members 52 having angled lugs at each end for this purpose.
  • Additional rigidity is provided by horizontal diagonal linking members 53 connecting opposite corners of the frame, and the pillar members in this example are also provided with intermediate attachment points within the web angle to receive further horizontal cross braces 54 or, at the top level, horizontal members 55 forming a safety rail around a deck 56. Toe boards 57 are also shown.
  • a pair of horizontal locking members 58 show in detail in Figure 10 are used to finish off the tower these having socket formations 59 at each end at right angles to the length of the member with securing U bolts and wedges to engage the uppermost tenon formations of the pillar assemblies.
  • FIGs 7, 8 and 9 are diagrams of three of many and varied forms of framework structures which may readily be assembled using the invention.
  • Figure 7 shows the bridging of a substantial span between two spaced towers 60, 61 similar to those shown in Figure 6, the righthand tower 61 being extended upwards to a working platform 62, for example at first floor window level.
  • a diagonal cantilever member 63 (see Figure 11). This member has lug 64 angled to the horizontal at its lower end and a tenon formation 65 (as on the pillar members) angled to be vertical at its upper end to receive other members.
  • the power end is also provided with a downwardly extending abutment 66 having a vertical face to locate against a face of the adjoining pillar member.
  • a diagonal outrigger or buttress member 67 (see Figure 13) having angled lugs 68 at each end which extend horizontally in use to connect with respective .tenon formations at different levels.
  • Member 67 has an upwardly extending abutment 69 at its upper end with a vertical face to locate against a face of the adjoining pillar member.
  • a free standing tower framework 65 is shown with a work platform 66 at second storey level cantilevered outward from opposite sides of the main tower using cantilever members 63, stability and support being provided by ground engaging feet 51 mounted on outriggers below the cantilevered parts of platform 66, the outriggers using buttress members 67 secured by locking members 58.
  • Figure 9 shows another form of framework 70 providing a longer work platform 71 at high level using cantilever members 63, one end of the platform being supported on the roof of a single storey building 72.
  • the different types of member may each be distinctively coloured by facilitate assembly and diagrams of common types of assembly listing the members required to build it may be provided. It is contemplated that such diagrams and listing may be provided for standard or for special purpo p ? structures using a computer which will also be programmed to provide calculations of sale working loading, and, if required, costing of the members needed either on purchase or hire basis.
  • the structures can be safely and reliably assembled even by unskilled or inexperienced labour, e.g. for "do it yourself” repairs or maintenance by householders themselves.
  • the structure is self-supporting and positively locating from the ground up it can be safely stood on and climbed up as erection proceeds.
  • Different weights or gauges of member may be employed in the same structure, for example a heavier gauge pillar member could be used in the lower parts of a tall tower or scaffolding or for the formation of a hollow girder or cantilever platform to span a substantial distance. Additional members can be purchased and added onto an existing system as required and it is anticipated that there will be considerable cost saving over conventional tubular scaffolding and clamps, for example steel angle equivalent in service to standard scaffold tubing costs, by weight, less than half the price of the latter and is in any event much lighter in weight for a given length. 40mm angle of 3mm gauge steel weighs 1.81Kg per metre length while the same length of standard steel scaffold tube weights 3Kg and will not withstand the same loading.
  • Distal portions of the tenons 12 may each be provided with a through cross-bore to receive a securing bolt or lock e.g to prevent unauthorised dismantling or tampering with an assembled structure.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Claims (13)

1. Ensemble d'élémentes pour la construction d'une charpente démontable de support d'une plate-forme de travail à une hauteur notable au-dessus du sol comprenant une pluralité d'éléments allongés de piliers (10) et une pluralité d'éléments allongés de liaison (11), des parties terminales desdits éléments avec des tenons et embôitements (12, 15) qui s'accrochent mutuellement pour une liaison efficace des éléments afin deformer la charpente par alignement d'éléments de piliers en disposition rectiligne de support de la charge pour constituer des piliers verticaux avec des éléments de liaison s'étendant entre ces piliers avec des parties terminales engageant les éléments de piliers alignés au niveau des liaisons à tenons et emboitements entre des éléments de piliers adjacents alignés, caractérisé en ce que les éléments sont constitués par des cornières à section en L ; les cornières de piliers (10) comportent une dite partie formant tenon (12) fixée dans un angle intérieur et faisant saillie au-delà de l'extrémité de ladite cornière et, à une seconde extrémité, und dite partie formant emboîtement (15) coaxiale à la partie en forme de tenon et à l'intérieur de laquelle s-engage la partie en forme de tenon de la première extrémité d'une cornière de pilier adjacente; chaque élément de liaison (11) comporte à chaque extrémité une oreille (21) faisant saillie longitudinalement et dotée d'une ouverture pour l'engagement d'une partie de liaison en forme de tenon des piliers ; et caractérisé de plus par un élément de reteune (17) sur chaque élément de pilier qui agit latéralement sur ladite partie en forme de tenon (12) pour empêcher son retrait de ladite partie formant emboîtement et ainsi solidariser ensemble les deux éléments de piliers en cornières adjacents reliés l'un à l'autre (10a, 10b).
2. Ensemble d'éléments selon la revendication 1, caractérisé en ce que l'élément de retenue (17) est un élément en forme d'étrier qui est bloqué en position de verrouillage de la partie en forme de tenon par des moyens de blocage (18, 19).
3. Ensemble d'éléments selon la revendication 2, caractérisé en ce que lesdits moyens de blocage comrennent un coin (19).
4. Ensemble d'éléments selon la revendication 3, caractérisé en ce que l'élément en forme d'étrier est constitué par un boulon en U (17) sur les extrémités extérieures duquel est montée une entretoise (18) qui permet de régler la longueur effective du boulen, ledit coin agissant entre ladite entretoise et l'élément de pilier en cornière associé (10a).
5. Ensemble d'éléments selon l'une quelconque des revendications précédentes, caractérisé en ce que la partie en forme de tenon présente une encoche ou un éivdement (14) dans laquelle, en utilisation, l'élément de retenue vient s'engager.
6. Ensemble d'éléments selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite première partie terminale est constituée par l'extrémité supérieure active de l'élément de pilier en cornière (10b).
7. Ensemble d'éléments selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend au moins deux éléments de liaison transversaux (11a, b, c) dont les oreilles évidées (21 a, b, c) sont destinécs à être engagées par une partie commune formant tenon (12).
8. Ensemble d'éléments selon l'une quelconque des revendications précédentes, caractérisé en ce que les éléments de liaison comprennent au moins une traverse (11) qui est horizontale en position d'utilisation en ayant à chaque extrémité des oreilles évidées (21) qui sont destinées à être engagées par des parties formant tenons (12) d'éléments de piliers (10) respectifs parallèles et écartés pour constituer une charpente restiligne.
9. Ensemble d'éléments selon l'une quelconque des revendications précédentes, caractérisé en ce que les éléments de liaison comprennent au moins un élément diagonal (52) qui est incliné en position d'utilisation, en ayant à son extrémité supérieure active une oreille évidée disposée à un angle pour être engagée en utilisation par la partie en forme de tenon (12) de l'extrémité supéricure de l'un des éléments de piliers d'une paire d'éléments de piliers (10), et à son extrémité inférieure active une oreille évidée disposée à un angle pour être engagée utilisation par la partie en forme de tenon de l'extrémité inférieure de l'autre élément de pilier de ladite paire, pour constituer une charpente rectiligne triangulée.
10. Ensemble d'éléments selon l'une quelconque des revendications précédentes, caractérisé en ce que les éléments de liaison comprennent au moins un élément diagonal (53) qui est horizontal en position d'utilisation et qui s'étend selon un diagonale d'une charpente rectiligne qui comprend au moins quatre éléments de piliers (10) espacés horizontalement et reliés entre eux, ledit élément diagonal présentant à chaque extrémité une oreille évidée destinée à engager les parties en forme de tenons (12) respectives des élément de piliers aux angles opposés.
11. Ensemble d'éléments selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend au moins un élément en console (63) présentant à son extrémité inférieure active une oreille évidée (64) formant un angle et, à son extrémité supérieure active, une partie en forme de tenon (65) qui fait un angle façon à être verticale en utilisation et sur laquelle d'autres éléments peuvent être disposés au-dessus de ladite extrémité inférieure en étant écartés horizontalement de celle-ci.
12. Ensemble d'éléments selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend au moins un élément d'arc-boutement (67) présentant des oreilles évidées (68) à ses extrémités actives supérieure et inférieure, ces oreilles formant des angles pour être horizontales en position d'utilisation, de sorte que son extrémité inférieure se trouve au-dessous et déportée horizontalement par rapport à un élément qu l'extrémité supérieur engage en position d'utilisation.
13. Ensemble d'éléments selon la revendication 10 ou 11, caractérisé en ce que ledit élément en console et ledit élément d'arc-boutement comprennent chacun un aboutement (66, 69) constituant une face verticale active destinée à s'appliquer contre une face d'un élément de piliers contigu (10).
EP19840300545 1983-01-29 1984-01-30 Cadre d'ossature démontable Expired EP0117643B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84300545T ATE37061T1 (de) 1983-01-29 1984-01-30 Zerlegbares rahmenwerk.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8302514 1983-01-29
GB838302514A GB8302514D0 (en) 1983-01-29 1983-01-29 Dismountable framework
GB8333595 1983-12-16
GB08333595A GB2142701B (en) 1983-01-29 1983-12-16 Dismountable framework

Publications (3)

Publication Number Publication Date
EP0117643A2 EP0117643A2 (fr) 1984-09-05
EP0117643A3 EP0117643A3 (en) 1985-09-11
EP0117643B1 true EP0117643B1 (fr) 1988-09-07

Family

ID=26285077

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840300545 Expired EP0117643B1 (fr) 1983-01-29 1984-01-30 Cadre d'ossature démontable

Country Status (4)

Country Link
EP (1) EP0117643B1 (fr)
CA (1) CA1216728A (fr)
DE (1) DE3473900D1 (fr)
GB (1) GB2142701B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2197418A (en) * 1986-11-06 1988-05-18 Grayston Central Services Scaffolding elements and joints thereof
US5181815A (en) * 1990-11-01 1993-01-26 Haberkorn Robert W Collapsible structure for unitizing and bracing a load in a trailer
DE29601355U1 (de) * 1996-01-29 1997-06-05 Frör, Werner, 91052 Erlangen Verbindungsknoten für Baukonstruktionen
AU4444701A (en) * 2000-04-04 2001-10-15 Pieter Wouter Booysen Scaffolding
DE102014114472A1 (de) 2014-10-06 2016-04-07 Thyssenkrupp Ag Strebenanbindung für eine Stahlbaukonstruktion und Stahlbaukonstruktion mit Strebenanbindung
GB2553803A (en) * 2016-09-14 2018-03-21 Lakeside Industries Ltd Access tower
CN108756191B (zh) * 2018-08-16 2024-05-03 浙江精工钢结构集团有限公司 一种施工平台结构
CN109610290B (zh) * 2019-01-24 2021-03-19 河海大学 一种景观栈桥
CN113513325B (zh) * 2020-05-14 2022-06-24 中国建筑第二工程局有限公司 一种盾构机接收钢平台及其安装方法

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US964233A (en) * 1909-08-25 1910-07-12 Alexander Gilliland Knockdown scaffold.
GB468045A (en) * 1935-12-19 1937-06-21 Richard Charles Leslie Improvements in rods
FR888210A (fr) * 1942-01-29 1943-12-07 Entretoise permettant le montage et le maintien sans organes de serrage d'éléments tubulaires pour constituer des échafaudages
GB631566A (en) * 1947-11-15 1949-11-04 George Walter Young Swanson Improvements in street shelters
DE864145C (de) * 1950-12-22 1953-01-22 Erich Stark Arbeitsgeruest fuer Aussen- und Innenarbeiten an Bauwerken jeglicher Art
US2771324A (en) * 1954-02-26 1956-11-20 Sun Oil Co Demountable scaffold
FR1243224A (fr) * 1958-12-18 1960-10-07 Moïse à transformations multiples
CH418604A (de) * 1965-02-09 1966-08-15 Kohenof Djeki Kupplung zum Verbinden von Rohren für die Verwendung in Baugerüsten
NL135988C (fr) * 1965-05-13
DE1928717A1 (de) * 1968-06-19 1970-02-26 Syncro Corp Metalloxidkondensator und Verfahren zu seiner Herstellung
FR2040568A5 (fr) * 1969-04-03 1971-01-22 Mills Echafaudages Tubul
US3677601A (en) * 1970-06-08 1972-07-18 Knoll Intern Inc Slung furniture
FR2239122A5 (fr) * 1973-07-25 1975-02-21 Somefran
FR2352202A1 (fr) * 1976-05-21 1977-12-16 Richier Sa Dispositif destine a assurer la liaison des elements d'une charpente metallique
CA1056897A (fr) * 1977-11-25 1979-06-19 Miranda Investments Limited Piece de raccordement pour elements d'ossature
FR2473090A1 (fr) * 1980-01-02 1981-07-10 Ricouard Marcel Echafaudage demontable plus specialement utilise pour soutenir des coffrages
GB2133495A (en) * 1982-12-01 1984-07-25 Dennis H Peers Rack systems

Also Published As

Publication number Publication date
CA1216728A (fr) 1987-01-20
GB2142701A (en) 1985-01-23
DE3473900D1 (en) 1988-10-13
EP0117643A2 (fr) 1984-09-05
GB8333595D0 (en) 1984-01-25
GB2142701B (en) 1986-12-31
EP0117643A3 (en) 1985-09-11

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