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1. WO2007143784 - RECESS FORMER FOR CONCRETE PANELS

Publication Number WO/2007/143784
Publication Date 21.12.2007
International Application No. PCT/AU2007/000824
International Filing Date 13.06.2007
IPC
E02D 35/00 2006.01
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
35Straightening, lifting, or lowering of foundation structures or of constructions erected on foundations
B28B 7/28 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
28WORKING CEMENT, CLAY, OR STONE
BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
7Moulds; Cores; Mandrels
28Cores; Mandrels
E04B 1/41 2006.01
EFIXED CONSTRUCTIONS
04BUILDING
BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
1Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
38Connections for building structures in general
41Connecting devices specially adapted for embedding in concrete or masonry
B22D 19/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
19Casting in, on, or around, objects which form part of the product
04for joining parts
E04B 1/38 2006.01
EFIXED CONSTRUCTIONS
04BUILDING
BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
1Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
38Connections for building structures in general
CPC
B28B 23/005
BPERFORMING OPERATIONS; TRANSPORTING
28WORKING CEMENT, CLAY, OR STONE
BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
23Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; ; Production of reinforced objects
005with anchoring or fastening elements for the shaped articles
B28B 23/0056
BPERFORMING OPERATIONS; TRANSPORTING
28WORKING CEMENT, CLAY, OR STONE
BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
23Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; ; Production of reinforced objects
0056Means for inserting the elements into the mould or supporting them in the mould
B28B 7/002
BPERFORMING OPERATIONS; TRANSPORTING
28WORKING CEMENT, CLAY, OR STONE
BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
7Moulds; Cores; Mandrels
0002Auxiliary parts or elements of the mould
0014Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
002using magnets
E04B 1/41
EFIXED CONSTRUCTIONS
04BUILDING
BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
1Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
38Connections for building structures in general
40Separate connecting elements
41Connecting devices specially adapted for embedding in concrete
E04B 1/4121
EFIXED CONSTRUCTIONS
04BUILDING
BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
1Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
38Connections for building structures in general
40Separate connecting elements
41Connecting devices specially adapted for embedding in concrete
4114Elements with sockets
4121with internal threads or non-adjustable captive nuts
E04B 1/4142
EFIXED CONSTRUCTIONS
04BUILDING
BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
1Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
38Connections for building structures in general
40Separate connecting elements
41Connecting devices specially adapted for embedding in concrete
4114Elements with sockets
4142with transverse hook- or loop-receiving parts
Applicants
  • WOODSTOCK PERCUSSION PTY LTD [AU]/[AU] (AllExceptUS)
  • MACKAY SIM, Rod [AU]/[AU] (UsOnly)
Inventors
  • MACKAY SIM, Rod
Agents
  • OLD, Fraser, Patison
Priority Data
200690318413.06.2006AU
200690579118.10.2006AU
200790059308.02.2007AU
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) RECESS FORMER FOR CONCRETE PANELS
(FR) ÉLÉMENT DE FORMATION DE CAVITÉ POUR PANNEAUX DE BÉTON
Abstract
(EN)
A recess former (30) is disclosed for use with anchors (35) which are to be cast into a concrete slab (61). The recess former (30) preferably includes a removable plug (36) and preferably rectangular lugs (57) which engage with corresponding apertures in the attachment head (34) of the lifting anchor and prevent the ingress of cement during casting of the slab (61). In addition, flaps (51) are preferably provided on the recess former to prevent the sides of the attachment head (34) from being encased in the concrete. Preferably the former is pivoted between open and closed positions and has a slightly V-shaped base which when abutted against a mould or formwork, urges the recess former into the closed position. Furthermore, a recess former (60-60I) is disclosed which stays behind after the casting and remains embedded in the concrete in order to provide a waterproof membrane between the recess (62) and adjacent reinforcing rods (58, 59, 71) thereby preventing corrosion of the reinforcing rods.
(FR)
L'invention concerne un élément de formation de cavité (30), destiné à être utilisé avec des ancres (35) qui doivent être coulées dans une dalle de béton (61). L'élément de formation de cavité (30) comporte, de préférence, un bouchon amovible (36) et, de préférence, des pattes rectangulaires (57) qui entrent dans des ouvertures correspondantes dans la tête d'attache (34) de l'ancre de levage et éviter toute pénétration de ciment pendant la coulée de la dalle (61). De plus, des volets (51) sont, de préférence, disposés sur l'élément de formation de cavité pour éviter l'encastrement des côtés de la tête d'attache (34) dans le béton. De préférence, l'élément de formation est amené à pivoter entre des positions ouvertes et fermées, et possède une base légèrement en forme de V, laquelle, lorsqu'elle est en butée contre un moule ou un coffrage, pousse l'élément de formation de cavité dans la position fermée. En outre, un élément de formation de cavité (60-60I) est utilisé, lequel demeure après la coulée et reste encastré dans le béton afin de constituer une membrane imperméable à l'eau entre la cavité (62) et les tiges de renforcement proches (58, 59, 71), empêchant ainsi la corrosion des tiges de renforcement.
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