EP2235276B1 - Poutre en treillis - Google Patents

Poutre en treillis Download PDF

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Publication number
EP2235276B1
EP2235276B1 EP09704948.0A EP09704948A EP2235276B1 EP 2235276 B1 EP2235276 B1 EP 2235276B1 EP 09704948 A EP09704948 A EP 09704948A EP 2235276 B1 EP2235276 B1 EP 2235276B1
Authority
EP
European Patent Office
Prior art keywords
support structure
lattice support
struts
accordance
lattice
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.)
Not-in-force
Application number
EP09704948.0A
Other languages
German (de)
English (en)
Other versions
EP2235276A2 (fr
Inventor
Kamal Daas
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.)
Prodelta Investments BV
Original Assignee
Prodelta Investments BV
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 Prodelta Investments BV filed Critical Prodelta Investments BV
Publication of EP2235276A2 publication Critical patent/EP2235276A2/fr
Application granted granted Critical
Publication of EP2235276B1 publication Critical patent/EP2235276B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/18—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic
    • E04H12/187—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic with hinged sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/343—Structures characterised by movable, separable, or collapsible parts, e.g. for transport
    • E04B1/344—Structures characterised by movable, separable, or collapsible parts, e.g. for transport with hinged parts
    • E04B1/3441—Structures characterised by movable, separable, or collapsible parts, e.g. for transport with hinged parts with articulated bar-shaped elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/02—Structures made of specified materials
    • E04H12/08—Structures made of specified materials of metal
    • E04H12/10—Truss-like structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/18—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic

Definitions

  • the present invention relates to a lattice structure.
  • Such lattice structures are known in different embodiments.
  • Such lattice structures bring with it the advantage that the lattice structure can be merged for the purpose of transport and thus takes up little space and must be unfolded shortly before its use in the ready state.
  • Collapsible lattice structures for example, in the US 2005/0262779 A1 and in the US 5,016,418 B1 shown.
  • the present invention has the object of developing such a lattice support structure to the effect that this can be secured particularly easily and safely in its built-up state.
  • the lattice support structure has longitudinal supports which are connected by oblique struts and in the ready state of the lattice structure transversely extending, provided with a hinge struts, wherein the struts are pivotally connected to two preferably adjacent supports in combination at least one connecting strut is provided which connects two non-adjacent, preferably two opposing supports together.
  • the at least one connecting strut and / or at least one associated with this component such as one or more preferably hinged to the connecting strut lever of the lattice structure has fastening means or is in connection with these or is connectable, wherein the fastening means are designed such that they prevent collapse of the unfolded lattice support structure in at least one position.
  • a preferred embodiment of the invention is that the connecting strut is in communication with a first mounting flange and that on the at least one connecting strut, a first and a second lever are hinged, which are in communication with a second fastener and wherein the fastening elements are arranged that they can be connected with each other. In the interconnected state of the fasteners they are locked relative to each other, so that the lattice support structure is secured in the unfolded state.
  • the invention further relates to a lattice support structure having longitudinal supports connected together by oblique struts, one, several or all of the oblique struts communicating with one or both end regions directly or indirectly with at least one of the longitudinal supports in that the oblique strut is displaceable relative to the longitudinal support at least in at least one of the end regions.
  • sliding elements preferably sliding sleeves are provided, which are preferably pivotally connected to an end portion of the oblique struts and run on the longitudinal supports.
  • the obliquely extending strut (s) in one end pivotally with such a sliding element and in its other end region stationary, but are pivotally mounted on the longitudinal supports.
  • the lattice support structure in cross section has a square or rectangular shape, wherein the corners of the square or of the rectangle are formed by the longitudinal supports and wherein the connecting struts are so diagonal that they connect two lying in opposite corners supports together.
  • the at least one connecting strut is pivotally connected to the first fastening element in connection.
  • the lever or levers may pivotally communicate with the second fastener.
  • the fastening elements may be designed such that they can be connected to each other by a clamp or the like. If the lattice structure is completely unfolded, the clamp or other fastener is used to effectively prevent removal of the fasteners and thus folding the lattice support structure.
  • one of the fastening elements has a flange-shaped part and extending from this pin and that the other of the fastening elements has a flanschförmgien part comprising recesses in which the pins can be at least partially received.
  • transverse, provided with a hinge struts are spaced apart in the longitudinal direction and that a connecting element is provided which connects two joints of two such struts or two struts together.
  • At least one blocking element is provided which prevents pivoting of the transverse struts in the ready state of the lattice support work.
  • This locking element can be designed to be self-locking, which means that it moves in its locking position when the lattice structure is fully unfolded.
  • the lattice support structure comprises struts which are designed in the form of a pyramid or in the form of a truncated pyramid. These structures can be arranged simply or in the longitudinal direction of the lattice structure repetitive, wherein in the case of several of these structures, the structures can be arranged the same or in opposite directions.
  • the pyramids or Pyramindenstümpfe are preferably located inside the lattice structure. They may be designed such that the central longitudinal axis of the lattice support structure extends through the tips of these structures.
  • the present invention further relates to a lattice support structure with longitudinally extending supports, which are connected to each other by oblique struts and in the operative state of the lattice structure transversely, provided with a hinge struts, wherein the struts are pivotally connected to two adjacent columns in combination and wherein a central element is provided from which struts extend to the longitudinal supports, wherein the struts extend at least in the operative state of the lattice support structure at an acute angle to the longitudinal supports.
  • This lattice support structure may be designed according to the characterizing part of one of claims 1 to 14.
  • the invention further relates to a lattice support structure with expandable structures, in particular lattice support structure according to one of claims 1 to 16, which is characterized in that the lattice structure has pivotally arranged bars or struts, wherein the pivotable connection is designed such that one of the pivotable with each other connected parts has a projection and that the other of the pivotally connected parts has a limited on three sides by walls groove in which the projection of the other part is pivotally received.
  • These bars or struts may be, for example, the struts of the above-mentioned embodiments of a lattice support structure.
  • the groove bottom thus serves as a boundary, so that a pivoting of the grid bar is only possible as far as possible, until one of said parts rests against the groove bottom. In this position, the grid is thus blocked or further pivoting is not possible.
  • a pivotable connection may be provided where two segments of a grid bar pivotally communicate with each other and / or where a grid bar is hinged to another part of the lattice support structure.
  • the grating bar or the strut can have the projection at its one end region and the said groove at its other end region. In this way it is possible to connect a plurality of bars together or to provide bars of different lengths. In principle, it is also conceivable to carry out both ends of the lattice bar with grooves or with the said projections.
  • the invention further relates to a crane, which consists of one or more lattice structures according to claims 1 to 17, or at least one such supporting structure.
  • FIG. 1 Upper illustration shows the lattice support structure according to the invention in a perspective view in the unfolded state.
  • the lattice structure is square in cross section. The corners of the square are formed by longitudinal supports 10, which are connected by oblique and intersecting struts 20, as can be seen from FIG. 1 evident.
  • the struts 20 are pivotally mounted on the supports 10. They form the outer surface of the structure.
  • a connecting element 90 which has the task to transmit the pivoting movement of a strut 30 on a pivoting movement of the adjacent strut 30.
  • connecting struts 40, 42 are provided, each connecting two diagonally opposite supports of the lattice structure with each other, as is apparent from FIG. 1 evident.
  • the struts 40, 42 are thus in the unfolded state on the front side of the illustrated lattice support structure segment.
  • connecting struts 40, 42 are each pivotable lever in connection, which are hinged to a fastening element 64.
  • the struts 40, 42 are also pivotally connected in its central region with another fastener 62 in connection.
  • FIG. 1 bottom view shows the arrangement in a plan view.
  • FIG. 2 shows the lattice structure according to FIG. 1 in the folded state.
  • This is a lattice structure segment, which can be assembled with other lattice structures.
  • FIG. 3 shows the according to FIG. 1 shown on the right front end portion of the lattice structure in a partially folded state.
  • the two fastening elements 62, 64 are comparatively far apart from each other.
  • the fastener 62 consists of a flange-shaped portion 66 and pins 67 extending vertically therefrom.
  • the fastener 64 is also comprised of a flange-shaped portion 68 and peripheral part-circular recesses 69 sized to receive the pins 67 therein in FIG. 4 is shown. Once this is the case, the clamp 70 is pivoted about the received portions of the pins 67 and around the flange 68 and secured, so that a movement apart of the fastening elements 62 and 64 is excluded.
  • FIG. 6 shows the lattice structure in a side view.
  • FIG. 7 emerges and in detail in FIG. 8 is shown, the transverse in the unfolded state struts 30, which have a joint 32 secured by a pawl 100.
  • This pawl automatically enters its locking position as soon as the struts 30 are swung out into their illustrated position.
  • FIG. 9 shows the lattice structure according to the present invention in a further embodiment.
  • struts 110 are provided which extend from a centrally located element 120 to the longitudinal supports 10. In the ready state, which in FIG. 9 As shown, the struts 110 extend at an acute angle to the longitudinal supports 10.
  • the struts 110 are pivotally mounted on both the supports 10 and the central member 120.
  • this strut arrangement is continued mirror-symmetrically downwards.
  • the struts 110 open in another central element 130.
  • These central elements 120 and 130 can be connected in the mounted state of the lattice structure with those of adjacent segments of the lattice structure, so that there is a continuous system, as in FIG. 12 is shown. In this way it is possible to effect a folding and unfolding of the entire lattice structure by corresponding actuation of the central elements.
  • FIG. 11 shows an embodiment in which this strut arrangement is not repeated downwards, but based on the lattice support structure segment is executed only half-sided.
  • Verbindunsstreben may be provided which extend diagonally between two obliquely opposite supports 10. These connecting struts are in FIG. 10 and 11 designated by the reference numeral 140. These struts can be made according to the above Embodiment also be used to secure the lattice structure in the unfolded position.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Tents Or Canopies (AREA)
  • Bridges Or Land Bridges (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Fencing (AREA)
  • Supports For Plants (AREA)
  • Jib Cranes (AREA)

Claims (12)

  1. Poutre en treillis comprenant des étançons (10) longitudinaux raccordés les uns aux autres par des entretoises (20) diagonales ainsi qu'à l'état prêt au fonctionnement de la poutre en treillis par des entretoises (30) diagonales pourvues d'une articulation (32), les entretoises (20, 30) étant en liaison pivotante avec respectivement deux étançons (10) de préférence adjacents, Caractérisée en ce
    qu'au moins une entretoise de raccordement (40) est pourvue d'un premier et d'un second levier (50) articulés sur celle-ci, laquelle raccorde deux étançons (10) l'un à l'autre non adjacents, de préférence opposés,
    en ce que la poutre en treillis comprend des moyens de fixation avec un premier (62) et un second élément de fixation (64) qui sont réalisés de telle manière qu'ils empêchent dans au moins une position que la poutre en treillis se replie,
    en ce que l'entretoise de raccordement (40) est en liaison avec le premier élément de fixation (62),
    en ce que le premier et le second levier (50) sont en liaison avec le second élément de fixation (64), et
    en ce que les éléments de fixation (62, 64) sont agencés de telle manière qu'ils peuvent être raccordés l'un à l'autre.
  2. Poutre en treillis selon la revendication 1, caractérisée en ce que deux entretoises de raccordement (40, 42) sont prévues, qui sont toutes les deux en liaison avec le premier élément de fixation (62).
  3. Poutre en treillis selon la revendication 1 ou 2, caractérisée en ce que l'au moins une entretoise de raccordement (40, 42) est en liaison pivotante avec le premier élément de fixation (62).
  4. Poutre en treillis selon l'une des revendications précédentes, caractérisée en ce que les leviers (50) sont en liaison pivotante avec le second élément de fixation (64).
  5. Poutre en treillis selon l'une des revendications précédentes, caractérisée en ce que les moyens de fixation ou les éléments de fixation (62, 64) sont réalisés de telle manière qu'ils peuvent être bloqués ou raccordés l'un à l'autre par un collier (70).
  6. Poutre en treillis selon l'une des revendications précédentes, caractérisée en ce que l'un des éléments de fixation (62) du moyen de fixation présente une pièce en forme de bride (66) et des tenons (67) s'étendant de celle-ci et en ce que l'autre des éléments de fixation (64) du moyen de fixation présente une pièce en forme de bride (68) qui présente des creux (69) dans lesquels les tenons (67) peuvent être reçus au moins partiellement.
  7. Poutre en treillis selon l'une des revendications précédentes, caractérisée en ce que les entretoises (30) transversales pourvues d'une articulation (32) sont espacées les unes des autres dans la direction longitudinale et en ce qu'un élément de raccordement (90) est prévu qui raccorde l'une à l'autre deux articulations (32) de deux entretoises (30) de ce type.
  8. Poutre en treillis selon l'une des revendications précédentes, caractérisée en ce qu'un élément de blocage (100) est prévu qui, à l'état prêt au fonctionnement de la poutre en treillis, empêche un pivotement des entretoises (30) transversales.
  9. Poutre en treillis selon la revendication 8, caractérisée en ce que l'élément de blocage (100) est réalisé autobloquant.
  10. Poutre en treillis selon l'une des revendications précédentes, caractérisée en ce que la poutre en treillis présente des entretoises qui sont réalisées sous forme d'une pyramide ou sous forme d'une pyramide tronquée.
  11. Poutre en treillis selon l'une des revendications précédentes, caractérisée en ce que la poutre en treillis présente des barres en treillis agencées pivotantes, la liaison pivotante étant réalisée de telle manière que l'une des pièces raccordées pivotantes l'une à l'autre présente une saillie et que l'autre des pièces raccordées pivotantes présente une rainure limitée sur trois côtés par des parois dans laquelle la saillie de l'autre pièce est reçue pivotante.
  12. Utilisation d'une ou de plusieurs poutres en treillis selon l'une des revendications précédentes en tant qu'élément structural d'une grue.
EP09704948.0A 2008-01-29 2009-01-29 Poutre en treillis Not-in-force EP2235276B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008001272U DE202008001272U1 (de) 2008-01-29 2008-01-29 Gittertragwerk
PCT/EP2009/000581 WO2009095243A2 (fr) 2008-01-29 2009-01-29 Poutre en treillis

Publications (2)

Publication Number Publication Date
EP2235276A2 EP2235276A2 (fr) 2010-10-06
EP2235276B1 true EP2235276B1 (fr) 2013-08-28

Family

ID=40512200

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09704948.0A Not-in-force EP2235276B1 (fr) 2008-01-29 2009-01-29 Poutre en treillis

Country Status (8)

Country Link
US (2) US8484925B2 (fr)
EP (1) EP2235276B1 (fr)
JP (1) JP2011511186A (fr)
CN (3) CN103213908A (fr)
DE (1) DE202008001272U1 (fr)
ES (1) ES2437146T3 (fr)
HK (1) HK1148564A1 (fr)
WO (1) WO2009095243A2 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120110946A1 (en) * 2008-10-22 2012-05-10 Prodelta Investments B.V. Lattice Structure

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CN101932779A (zh) 2010-12-29
US20100326004A1 (en) 2010-12-30
JP2011511186A (ja) 2011-04-07
DE202008001272U1 (de) 2009-06-04
CN103216133A (zh) 2013-07-24
WO2009095243A3 (fr) 2009-11-12
CN103213908A (zh) 2013-07-24
HK1148564A1 (en) 2011-09-09
US8484925B2 (en) 2013-07-16
US20140150370A1 (en) 2014-06-05
EP2235276A2 (fr) 2010-10-06
ES2437146T3 (es) 2014-01-09

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