GB2054690A - Concrete insert and anchor device - Google Patents

Concrete insert and anchor device Download PDF

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Publication number
GB2054690A
GB2054690A GB7919770A GB7919770A GB2054690A GB 2054690 A GB2054690 A GB 2054690A GB 7919770 A GB7919770 A GB 7919770A GB 7919770 A GB7919770 A GB 7919770A GB 2054690 A GB2054690 A GB 2054690A
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GB
United Kingdom
Prior art keywords
insert
concrete
bridge
foot
slits
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.)
Withdrawn
Application number
GB7919770A
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.)
Otter Eng Ltd B & R
Original Assignee
Otter Eng Ltd B & R
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 Otter Eng Ltd B & R filed Critical Otter Eng Ltd B & R
Publication of GB2054690A publication Critical patent/GB2054690A/en
Withdrawn legal-status Critical Current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
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • E04G15/061—Non-reusable forms
    • 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
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
    • E04B1/4107—Longitudinal elements having an open profile, with the opening parallel to the concrete or masonry surface, i.e. anchoring rails

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Floor Finish (AREA)

Abstract

The anchor device 3 is secured to the back of a channel-sectioned concrete insert 1 by piercing the base 2 of the channel with spaced parallel slits, raising the base between the slits to form a bridge 6 and inserting a foot 10 of the anchor device under the bridge so as to project at both sides. <IMAGE>

Description

SPECIFICATION Concrete insert The invention relates to a concrete insert embedded or for embedding in a concrete structural member, the insert being preferably but not exclusively an elongate channel sectioned member for supporting electrical or mechanical services.
Concrete inserts per se are well known in the building industry, but the means used hitherto to anchor the inserts in concrete structural members have suffered from one or other of several drawbacks. In some inserts, for example, anchoring brackets have been secured to the base of a channel section insert by welding, which operation is expensive and requires specialised equipment. In another type of insert, a tongue is cut from the sheet metal forming part of the base of a channel section insert and bent back, but this procedure leaves a gap in the base of the insert, and precautions have to be adopted to avoid, in use of the insert, penetration of wet concrete through the gap. It is an object of the invention to minimize the above-mentioned drawbacks.
According to one aspect of the invention there is provided a concrete insert comprising a body of which a portion having a surface for contacting wet concrete in use of the insert is formed of sheet material, wherein the sheet material of said portion is slit at spaced locations and raised between the slits to form a bridge, and an anchoring member extending outwardly from said surface and having a foot which extends under the bridge and engages the said surface at each side of the bridge.
According to another aspect of the invention there is provided a concrete structural member in which is wholly or partly embedded a concrete insert comprising a body of which a portion having a surface in contact with the concrete is formed of sheet material, wherein the sheet material of said portion is slit at spaced locations and raised between the slits to form a bridge, and an anchoring member extending into the concrete and having a foot which extends under the bridge and engages the said surface at each side of the bridge.
Preferably the anchoring member comprises a double flange bracket formed from sheet material, one of the flanges defines the said foot and the foot engages the underside of the bridge.
Preferably the concrete insert comprises an elongate channel sectioned body and the slits are formed in the base of the channel parallel to one another and transverse to the longitudinal axis of the insert.
The invention will be further described by way of example and with reference to the accompanying drawings, of which: - Fig. 1 is a perspective view of a portion of a channel sectioned insert; Fig. 2 is a section on lines II to II of Fig. 1; and Fig. 3 is a section on lines Ill to Ill of Fig. 1.
The insert comprises a channel sectioned body 1 having a base 2 to which an anchoring bracket 3 is secured. The body is for embedding into wet concrete in the formation of a concrete structural member, preferably but not exclusively to the full depth of the body, so that the inturned flanges 4 of walls 5 of the body are flush with the surface of the concrete member.
The channel section body is made of sheet steel, and a bridge portion 6 is formed in the base 2 by a forming operation, performed in one or more steps whereby the sheet steel is slit in two parallel lines and the portion 7 between the slits is raised to define a bridge of which the lower surface 8 is spaced sufficiently above the upper surface 9 of the base 2 as to allow the foot 10 of the anchor bracket 3 to pass thereunder.
Preferably the vertical spacing between surfaces 9 and 8 is only such as to allow the passage of the foot 10 with considerable force, so that the anchor bracket has to be inserted by hammering and can only be removed by a similar action. Again, whilst the length of the slits and thus the span of the bridge is slightly greater than the width of the foot 10, the excess length of the span is kept to a minimum so that insertion of the foot under the bridge effects a distortion of the metal of the bridge in the region of the corners 12.
The foot 10 may taper to a smaller width at the free end and the slit which defines the edge of the tunnel into which the foot is introduced may be longer than the other slit. The slitting and raising are conveniently performed simultaneously by a shearing action.
In other embodiments of the invention the slits are formed in the base of a channel sectioned concrete insert in a direction parallel to the longitudinal axis of the insert. Whilst the anchoring member has been described as flanged, other forms of anchor having a foot capable of being secured to the body by passing under a bridge and extending outwardly from the insert for anchoring in the concrete may be employed. For example, the anchor member may take the form of a bent rod and the bridge may then be arched rather than being flat topped.
1. A concrete insert comprising: a body of which a portion having a surface for contacting wet concrete in use of the insert is formed of sheet material and the material of the portion is slit at spaced locations and raised between the slits to form a bridge; and an anchor member extending away from said surface and having a foot extending under the bridge.
2. A concrete insert according to Claim 1, wherein the foot of the anchor member projects at each side of the bridge.
3. A concrete insert according to Claim 1 or Claim 2, wherein the anchor member comprises a double flange bracket, and one of the flanges defines said foot.
4. A concrete insert according to any one of the preceding claims wherein the body is elongate and
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (6)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Concrete insert The invention relates to a concrete insert embedded or for embedding in a concrete structural member, the insert being preferably but not exclusively an elongate channel sectioned member for supporting electrical or mechanical services. Concrete inserts per se are well known in the building industry, but the means used hitherto to anchor the inserts in concrete structural members have suffered from one or other of several drawbacks. In some inserts, for example, anchoring brackets have been secured to the base of a channel section insert by welding, which operation is expensive and requires specialised equipment. In another type of insert, a tongue is cut from the sheet metal forming part of the base of a channel section insert and bent back, but this procedure leaves a gap in the base of the insert, and precautions have to be adopted to avoid, in use of the insert, penetration of wet concrete through the gap. It is an object of the invention to minimize the above-mentioned drawbacks. According to one aspect of the invention there is provided a concrete insert comprising a body of which a portion having a surface for contacting wet concrete in use of the insert is formed of sheet material, wherein the sheet material of said portion is slit at spaced locations and raised between the slits to form a bridge, and an anchoring member extending outwardly from said surface and having a foot which extends under the bridge and engages the said surface at each side of the bridge. According to another aspect of the invention there is provided a concrete structural member in which is wholly or partly embedded a concrete insert comprising a body of which a portion having a surface in contact with the concrete is formed of sheet material, wherein the sheet material of said portion is slit at spaced locations and raised between the slits to form a bridge, and an anchoring member extending into the concrete and having a foot which extends under the bridge and engages the said surface at each side of the bridge. Preferably the anchoring member comprises a double flange bracket formed from sheet material, one of the flanges defines the said foot and the foot engages the underside of the bridge. Preferably the concrete insert comprises an elongate channel sectioned body and the slits are formed in the base of the channel parallel to one another and transverse to the longitudinal axis of the insert. The invention will be further described by way of example and with reference to the accompanying drawings, of which: - Fig. 1 is a perspective view of a portion of a channel sectioned insert; Fig. 2 is a section on lines II to II of Fig. 1; and Fig. 3 is a section on lines Ill to Ill of Fig. 1. The insert comprises a channel sectioned body 1 having a base 2 to which an anchoring bracket 3 is secured. The body is for embedding into wet concrete in the formation of a concrete structural member, preferably but not exclusively to the full depth of the body, so that the inturned flanges 4 of walls 5 of the body are flush with the surface of the concrete member. The channel section body is made of sheet steel, and a bridge portion 6 is formed in the base 2 by a forming operation, performed in one or more steps whereby the sheet steel is slit in two parallel lines and the portion 7 between the slits is raised to define a bridge of which the lower surface 8 is spaced sufficiently above the upper surface 9 of the base 2 as to allow the foot 10 of the anchor bracket 3 to pass thereunder. Preferably the vertical spacing between surfaces 9 and 8 is only such as to allow the passage of the foot 10 with considerable force, so that the anchor bracket has to be inserted by hammering and can only be removed by a similar action. Again, whilst the length of the slits and thus the span of the bridge is slightly greater than the width of the foot 10, the excess length of the span is kept to a minimum so that insertion of the foot under the bridge effects a distortion of the metal of the bridge in the region of the corners 12. The foot 10 may taper to a smaller width at the free end and the slit which defines the edge of the tunnel into which the foot is introduced may be longer than the other slit. The slitting and raising are conveniently performed simultaneously by a shearing action. In other embodiments of the invention the slits are formed in the base of a channel sectioned concrete insert in a direction parallel to the longitudinal axis of the insert. Whilst the anchoring member has been described as flanged, other forms of anchor having a foot capable of being secured to the body by passing under a bridge and extending outwardly from the insert for anchoring in the concrete may be employed. For example, the anchor member may take the form of a bent rod and the bridge may then be arched rather than being flat topped. CLAIMS
1. A concrete insert comprising: a body of which a portion having a surface for contacting wet concrete in use of the insert is formed of sheet material and the material of the portion is slit at spaced locations and raised between the slits to form a bridge; and an anchor member extending away from said surface and having a foot extending under the bridge.
2. A concrete insert according to Claim 1, wherein the foot of the anchor member projects at each side of the bridge.
3. A concrete insert according to Claim 1 or Claim 2, wherein the anchor member comprises a double flange bracket, and one of the flanges defines said foot.
4. A concrete insert according to any one of the preceding claims wherein the body is elongate and of generally channel section and the slits are formed in the base of the channel transverse to the longitudinal axis of the body.
5. A concrete insert substantially as described with reference to the drawings.
6. A concrete structure member in which is wholly or partly embedded a concrete insert according to any one of Claims 1 to 5.
GB7919770A 1979-09-21 1979-06-06 Concrete insert and anchor device Withdrawn GB2054690A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7932816A GB2057529A (en) 1979-09-21 1979-09-21 Building panels and building constructions

Publications (1)

Publication Number Publication Date
GB2054690A true GB2054690A (en) 1981-02-18

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Family Applications (2)

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GB7919770A Withdrawn GB2054690A (en) 1979-09-21 1979-06-06 Concrete insert and anchor device
GB7932816A Withdrawn GB2057529A (en) 1979-09-21 1979-09-21 Building panels and building constructions

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB7932816A Withdrawn GB2057529A (en) 1979-09-21 1979-09-21 Building panels and building constructions

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2256211A (en) * 1991-05-25 1992-12-02 George Clark Permanent shuttering for concrete slab edge.
US20110049166A1 (en) * 2006-10-26 2011-03-03 Industrial Origami, Inc. Method of forming two-dimensional sheet material into three-dimensional structure
US8505258B2 (en) 2000-08-17 2013-08-13 Industrial Origami, Inc. Load-bearing three-dimensional structure

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124675A (en) * 1982-07-31 1984-02-22 Joseph Francis Brown Wall panel
GB2161842B (en) * 1984-05-19 1987-10-07 Boyton System Buildings Factory built buildings
US4869036A (en) * 1987-03-16 1989-09-26 Building With Legs, Ltd. Modular building construction
WO1989001549A1 (en) * 1987-08-13 1989-02-23 El Barador Holdings Pty. Ltd. Methods of building construction
ATE106978T1 (en) * 1987-08-13 1994-06-15 Force 10 Holdings Pty Ltd BUILDING.
GB2247257B (en) * 1990-07-31 1994-08-17 Ka Ho Hung Partitioning system
US5293728A (en) * 1992-09-17 1994-03-15 Texas Aluminum Industries, Inc. Insulated panel
GB2283509B (en) * 1993-11-03 1997-03-19 Clix Interiors Limited Partitioning systems
AUPN156795A0 (en) * 1995-03-07 1995-03-30 Stansfield, Anthony A demountable panel assembly
US5617686A (en) * 1995-06-07 1997-04-08 Gallagher, Jr.; Daniel P. Insulating polymer wall panels
AUPN428095A0 (en) * 1995-07-20 1995-08-10 Cardinal Drafting, Technical & Secretarial Services Pty Ltd A structural panel
AU705262B2 (en) * 1995-07-20 1999-05-20 Diebold Australia Pty Ltd An interengaging modular wall panel
WO1997033055A1 (en) * 1996-03-07 1997-09-12 Anthony Stansfield A panel with separate connecting means on lateral edges
IL141467A0 (en) * 2001-02-15 2002-03-10 Industrial walls
ITTV20010090A1 (en) 2001-07-06 2003-01-06 Ka Bi Srl PANEL WITH SELF-SUPPORTING STRUCTURE FOR FLOORING AND WALLS
EP1552076A4 (en) * 2002-06-27 2007-04-04 Eliyahu Maimon Modular wall segments and method of making such segments
US8065846B2 (en) 2003-04-17 2011-11-29 Mcdonald Frank Modular building panels, method of assembly of building panels and method of making building panels

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2256211A (en) * 1991-05-25 1992-12-02 George Clark Permanent shuttering for concrete slab edge.
GB2256211B (en) * 1991-05-25 1993-12-15 George Clark Method of casting a concrete floor
US8505258B2 (en) 2000-08-17 2013-08-13 Industrial Origami, Inc. Load-bearing three-dimensional structure
US20110049166A1 (en) * 2006-10-26 2011-03-03 Industrial Origami, Inc. Method of forming two-dimensional sheet material into three-dimensional structure
US8438893B2 (en) * 2006-10-26 2013-05-14 Industrial Origami, Inc. Method of forming two-dimensional sheet material into three-dimensional structure

Also Published As

Publication number Publication date
GB2057529A (en) 1981-04-01

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)