EP1726741B1 - Stanchion with bracing means - Google Patents

Stanchion with bracing means Download PDF

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Publication number
EP1726741B1
EP1726741B1 EP04720888A EP04720888A EP1726741B1 EP 1726741 B1 EP1726741 B1 EP 1726741B1 EP 04720888 A EP04720888 A EP 04720888A EP 04720888 A EP04720888 A EP 04720888A EP 1726741 B1 EP1726741 B1 EP 1726741B1
Authority
EP
European Patent Office
Prior art keywords
outer tube
bracing
clamp
shore
fixed
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
EP04720888A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1726741A1 (en
Inventor
Alberto Arocena Bergareche
Raul Garcia Diaz
Inigo Querejeta Garmendia
Garikoitz Mendizabal Asurabarrena
Joseba Inaki Lizarazu Zaldua
Miren Arantzazu Igartua Irizar
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.)
Ulma CyE S Coop
Original Assignee
Ulma CyE S Coop
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 Ulma CyE S Coop filed Critical Ulma CyE S Coop
Priority to PL04720888T priority Critical patent/PL1726741T3/pl
Publication of EP1726741A1 publication Critical patent/EP1726741A1/en
Application granted granted Critical
Publication of EP1726741B1 publication Critical patent/EP1726741B1/en
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
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/32—Scaffolding bars or members with non-detachably fixed coupling elements with coupling elements using wedges
    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48—Supporting structures for shutterings or frames for floors or roofs
    • 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
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
    • 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
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
    • E04G25/065—Shores or struts; Chocks telescopic with parts held together by positive means by a threaded nut

Definitions

  • the present invention refers to shores adjustable for height designed to be used as support elements for horizontal formwork and as support or shoring elements.
  • the object of the invention is the means of inter-shore bracing, which form shoring towers together with the actual shores, said means of bracing comprising a rectangular frame made up of tubular structures terminated at their ends with bracing clamps that encircle the shores.
  • a further object of the invention is the particular structure, constitution and geometry of the bracing clamps in combination with the actual external geometry of the shore that they encircle, which are designed to assure the adjustment and fixing of the clamps to the shore in a simple and secure fashion.
  • the shores conventionally comprise an inner threaded tube that moves vertically in relation to an outer tube under the action of a nut which adjusts the height of the shore in accordance with the height of the formwork or other element to be supported as it is shown in EP 0 921 254 .
  • a hitch integral with the outer tube of the shore, which is provided with anchoring means that establish the connection between a plate of said tube and the actual nut.
  • This hitch is normally swivelling and is subject to the action of a spring which must be pressed to release the anchorage.
  • This configuration is shown for example in the shore that constitutes the object of Invention Patent EP 0 921 254 .
  • Patent ES 2 021 047 describes a support system adapted to arch centering which consists of a framework that comprises two vertical legs interlinked by a series of horizontal cross members, each of which has a connecting element which is fixed to the support leg by means of bolts which traverse the leg through the corresponding holes.
  • Invention Patent ES 2 078 632 refers to a connector used in a shoring system which comprises a plurality of uprights and frames joining the uprights, the outer surface of each of said uprights displaying slots that extend in an axial direction in which the connectors are engaged.
  • These consist basically of latches that slide axially for insertion of their head into said axial slot.
  • this is provided with a longitudinal housing in which a wedge moves.
  • Such wedge is provided with an angular slot which in the course of its movement in the housing pushes a cross stem of the latch causing the axial movement of the latch in a direction perpendicular to the movement of the wedge.
  • the cross members may be engaged or released in respect of the vertical uprights.
  • the shore with means of bracing that is the object of this invention proposes an alternative solution for establishing the simple and secure union between shores and means of bracing in order to form rectangular shoring towers, according to claim 1.
  • the shore is basically composed of an outer tube and an inner tube moving in a vertical direction in relation to the former under the action of a nut, and it is distinguished mainly by the fact that the outside face of the outer tube has axial lozenge-shaped ribs which are encircled by bracing clamps provided at the ends of tubular structures which link the shores.
  • the assemblage of a number of tubular structures joining various shores forms a closed, preferably rectangular bracing frame defined between four shores with which a shoring tower is configured.
  • the bracing clamp is composed of a fixed clamp, a moving clamp and a wedge.
  • the fixed clamp is welded to the tubular structure and it is adapted to the shape of the outer tube of the shore, so that one of the lozenge-shaped ribs of the outer tube is housed in a recess defined in the fixed clamp, whose recess has a similarly lozenge-shaped configuration.
  • the moving clamp can turn in relation to the fixed clamp, both encircling the outer tube, while the locking position between the two is established by the wedge.
  • the moving clamp has a contact protuberance that forms the first sector, which impinges on the outer tube as the clamp approaches, so that the moving clamp swivels in relation to the fixed clamp until both encircle the outer tube.
  • Two symmetrical moving clamps are provided, a right-hand moving clamp and a left-hand moving clamp.
  • the wedge is the fast-fixed type and slides in slots in the moving clamp, so that said wedge, which has snugs at its lower end, can come out of the lower slot in the releasing operation, given the latter's special configuration, but it will be retained by the upper slot narrower than the snugs, so that the wedge can never be detached or separated from the moving clamp.
  • the fixed clamp is provided with a rebate in which the wedge is lodged in the locking position.
  • the inner tube has a four lead-in trapezoidal thread for quick adjustment and that the outer tube has inner shoulders which reduce the clearance between the inner tube and the outer tube, limiting friction to a few contact points, which may be four for example, thus facilitating adjustment.
  • the nut which adjusts the height of the inner tube in respect of the outer tube will normally be winged to facilitate its turning, either with the aid of a hammer or levering with a bar for example, being designed internally, matching up with the wings, to have rebates that interrupt the thread to assist the removal of the dirt that may have collected in the thread, thereby assuring that it remains clean.
  • the shore also includes an intermediate plate riveted to the end of the outer tube which constitutes the support on which the nut rests and turns and which supports the inner tube, while also acting as the support to which a hitch is attached that likewise engages on the base of the nut, establishing the connection between the inner tube and the outer tube once the adjustment is made.
  • the shore with means of bracing which constitutes the object of this invention has its application as an element for supporting horizontal formwork or as an element for supporting or shoring and it includes an outer tube (1) and a threaded inner tube (2) which moves in a vertical direction under the action of a nut (3).
  • the outer tube (1) incorporates a hitch (4) which locks the nut (3) up against an intermediate plate (5) integral with the outer tube (1) establishing the fixing of the relative position between the inner tube (1) and the outer tube (2).
  • the invention is notable mainly because the means of inter-shore bracing comprise a tubular structure (6) which has horizontal tubes (7) and struts (8), there being associated with the ends of the horizontal tubes (7) bracing clamps (9) that encircle the outer tubes (1) of the shores configuring a closed bracing frame (10) which makes up a shoring tower together with said shores.
  • the bracing clamps (9) comprise a fixed clamp (11) welded to the end of the horizontal tube (7) of the tubular structure (6), exhibiting a curved contact surface broken by at least one recess (12) which has the same geometry as a series of axial ribs (13) defined in the outer tube (1) for fitting on one of these ribs (13), encircling the outer tube (1) of the shore with the assistance of a moving clamp (14), which swivels around the fixed clamp (11) in relation to a swivel axis (15).
  • the bracing clamp (9) is completed with a wedge (16) which, on becoming lodged, establishes the fixing position of the moving clamp (14) in relation to the fixed clamp (11) in the situation of coupling and locking of the bracing clamp (9), encircling the outer tube (1).
  • the moving clamp (14) impinges on the outer tube (1) by means of a contact protuberance (17), which determines the swivelling of the moving clamp (14) towards the outer tube (1), which will thus be encircled both by the fixed clamp (11) and the moving clamp (14) and will be locked in this encircling position by the wedge (16).
  • the fast-fixed type wedge (16) i.e. it remains attached to the moving clamp (14) all the time, moves in slots (18) and (19) in said moving clamp (14), remaining in both slots in the locking position, while in the release position the lower end of the wedge, which is provided with snugs, can disengage from the slot (19), given the latter's special configuration, but not from the slot (18), narrower than the snugs, so that the wedge (16) always remains attached to the moving clamp (14).
  • the fixed clamp has a rebate (20) in which the wedge (16) is lodged in order to lock the clamps.
  • the inner tube (2) of the shore has a four lead-in trapezoidal thread (21) which permits a quick turning of the nut (3) and thereby a quick adjustment for height of the shore, while the outer tube (1) is also provided internally with shoulders (22) that minimize the clearance between the inner tube (2) and the outer tube (1), limiting the possible friction between these to the contact between the inner tube (2) and the shoulders (22), so that there is no interference with adjustment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Supports For Pipes And Cables (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
EP04720888A 2004-03-16 2004-03-16 Stanchion with bracing means Expired - Lifetime EP1726741B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04720888T PL1726741T3 (pl) 2004-03-16 2004-03-16 Słupek zawierający środki usztywniające

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2004/000121 WO2005090710A1 (es) 2004-03-16 2004-03-16 Puntal con medios de arriostramiento

Publications (2)

Publication Number Publication Date
EP1726741A1 EP1726741A1 (en) 2006-11-29
EP1726741B1 true EP1726741B1 (en) 2010-10-27

Family

ID=34993752

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04720888A Expired - Lifetime EP1726741B1 (en) 2004-03-16 2004-03-16 Stanchion with bracing means

Country Status (6)

Country Link
EP (1) EP1726741B1 (pt)
AR (1) AR048262A1 (pt)
BR (1) BRPI0418512B1 (pt)
DE (1) DE602004029820D1 (pt)
PL (1) PL1726741T3 (pt)
WO (1) WO2005090710A1 (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2008207593B2 (en) * 2007-11-02 2015-04-16 Acrow Formwork And Scaffolding Pty Ltd A clamp assembly
NL2003206C2 (nl) * 2009-07-15 2011-01-18 Scafom Internat B V Steigersysteem, alsmede koppeling, liggerbuis en staanderbuis bestemd voor een dergelijk steigersysteem.
EP2649257B1 (en) * 2011-11-02 2017-08-09 Saferite Platforms Inc. Pivoting horizontal and vertical scaffold members and a method of erecting an offset scaffold platform
JP5986405B2 (ja) * 2012-03-22 2016-09-06 アルインコ株式会社 足場構築体の強化装置
DE102016208739A1 (de) * 2016-05-20 2017-11-23 Peri Gmbh Gerüststiel sowie Verfahren zum Herstellen eines Gerüststiels

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3376056A (en) * 1966-06-15 1968-04-02 Robert S. Linstead Hose clamp
BE758844A (fr) * 1969-11-12 1971-04-16 Mannesmann Leichtbau Gmbh Poteau de charpente assemble a partir de groupes constructifs
FR2395372A1 (fr) * 1977-06-23 1979-01-19 Mills Echafaudages Perfectionnements apportes aux elements d'assemblage, notamment pour echafaudages
GB9019211D0 (en) * 1990-08-31 1990-10-17 Leada Acrow Ltd Improvements in and relating to scaffolding structures
GB9725720D0 (en) 1997-12-04 1998-02-04 Sgb Services Plc A shoring leg
US6481912B2 (en) * 2001-03-29 2002-11-19 Lung Ching Shih Prop connecting ring

Also Published As

Publication number Publication date
WO2005090710A1 (es) 2005-09-29
AR048262A1 (es) 2006-04-12
BRPI0418512B1 (pt) 2016-05-17
BRPI0418512A (pt) 2007-05-15
EP1726741A1 (en) 2006-11-29
PL1726741T3 (pl) 2011-04-29
DE602004029820D1 (de) 2010-12-09

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