EP0874098A1 - Espaceur pour armatures de béton - Google Patents

Espaceur pour armatures de béton Download PDF

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Publication number
EP0874098A1
EP0874098A1 EP98201242A EP98201242A EP0874098A1 EP 0874098 A1 EP0874098 A1 EP 0874098A1 EP 98201242 A EP98201242 A EP 98201242A EP 98201242 A EP98201242 A EP 98201242A EP 0874098 A1 EP0874098 A1 EP 0874098A1
Authority
EP
European Patent Office
Prior art keywords
spacer
wire
reinforcing bars
clip
concrete
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.)
Granted
Application number
EP98201242A
Other languages
German (de)
English (en)
Other versions
EP0874098B1 (fr
Inventor
Frederic Alexander Montijn
Harm Johannes Stoter
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.)
Netwerk Steltechniek
Original Assignee
Netwerk Steltechniek
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 Netwerk Steltechniek filed Critical Netwerk Steltechniek
Publication of EP0874098A1 publication Critical patent/EP0874098A1/fr
Application granted granted Critical
Publication of EP0874098B1 publication Critical patent/EP0874098B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/20—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires
    • E04C5/201—Spacer blocks with embedded separate holding wire or clips
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162—Connectors or means for connecting parts for reinforcements
    • E04C5/166—Connectors or means for connecting parts for reinforcements the reinforcements running in different directions
    • E04C5/167—Connection by means of clips or other resilient elements

Definitions

  • the invention relates to a spacer for concrete reinforcing bars, comprising a substantially solid body for fixing against the reinforcing bars and a clip manufactured from resilient material for clamping the body on the reinforcing bar, wherein the clip is partially embedded in the body, the clip is provided with hooks for hooking the body on the reinforcing bars at a distance from the body, the clip is formed by a single piece of wire, a hook is arranged on either side of the piece of wire for connection to the reinforcing bars and the hooks are each separated from the body by a leg.
  • Such a spacer is known from DE-A-2 144 093.
  • the object of the invention is to provide such a spacer which is easier to manipulate.
  • This provides the option of arranging the spacer with one hand.
  • the first hook of the spacer is initially hooked onto a piece of concrete reinforcing bar, while the other hook is then hooked onto the reinforcing bar by manoeuvring the body of the spacer, whereafter the body is placed at the correct position by further manoeuvring of the body.
  • the other hand can be used to hold the bag with spacers or can be used to place the pieces of reinforcing bar into a manageable position.
  • a spacer for concrete reinforcing bars is otherwise known from NL-A-76 01430, wherein a point symmetrical construction of the clip is applied; however, the hooks of the clip are situated directly above the body, so that the advantages in manipulation of the present invention cannot be achieved.
  • this spacer is only suitable for concrete reinforcing bars with limited variation in diameter, while it is equally unsuitable for attaching to reinforcing bars at the location of an intersection between two reinforcing bars. Experience has shown that it is precisely at these latter positions that it is desirable to apply the spacers.
  • the hooks comprise a substantially straight piece of wire which is bounded on either side by pieces of wire extending at an obtuse angle. This measure on the one hand increases the possibility of fixed hooking onto reinforcing bars of diverse diameters, while the hooks are also prevented from become mutually entangled when a large number of these spacers is carried for instance in a bag.
  • Arranging of the spacer is further facilitated by the measure that the projections of the legs onto the top surface of the body extend mutually parallel.
  • the measure that the projections of the legs extend at a mutual distance also improves handling.
  • This spacer can moreover be mounted in stable manner on single pieces of reinforcing bar as well as on mutually intersecting pieces of reinforcing bar.
  • the body is manufactured from concrete, the wire is formed by metal wire and the metal wire is embedded in the body during casting of the body.
  • metal wire is of course widely present in the form of reinforcing bars. Casting of the metal wire into the concrete moreover facilitates the production of such spacers.
  • the body comprises on its upper side a flat surface, the largest dimension of which is of the same order of magnitude in two perpendicular directions.
  • the fixing of two mutually intersecting concrete reinforcing bars at an intersection particularly results in a good positioning; due to its large dimensions the upper surface results in positioning in a first plane and the long legs between the body and the hooks on the one hand make it possible for the spacer to be connected to the piece of reinforcing bar lying above and on the other hand ensure positioning in the second direction.
  • the body comprises on its underside a flat surface, the largest dimension of which is of the same order of magnitude in two perpendicular directions.
  • Figure 1 shows a base 1 of a formwork which must be filled with concrete.
  • a reinforcement is arranged comprising inter alia two mutually intersecting pieces of concrete reinforcing bar 2,3.
  • the reinforcement is otherwise shown in its entirety in figure 3.
  • the mutually intersecting pieces of reinforcing bar 2,3 are usually connected to each other at the location of the intersection, for instance by winding round iron wire, but this is less relevant to the application of the present invention. It will be apparent that the concrete reinforcing bars will have to be fully enclosed within the concrete for arranging round it, so that the reinforcing bars must be arranged at a distance from the formwork. Use is made for this purpose of the spacer according to the invention.
  • the spacer according to the invention is formed in the first instance by a body 4 which is preferably manufactured from concrete.
  • the body is substantially frusto-conical, wherein the smaller surface is adapted to rest on the formwork, while the larger surface is adapted to support a part of the reinforcing bars.
  • a part of the body which is designated with 5 further takes a cylindrical form.
  • the spacer is provided with a piece of wire 6, which is shown in its entirety in figure 4.
  • the wire piece 6 is formed by two legs 7,8 which are connected by a part 9 bent into U-shape.
  • the legs 7,8 lie mutually in line; it is likewise possible to have these legs extending mutually parallel but not mutually in line. Attachment to single pieces of concrete reinforcing bar is hereby improved.
  • Hook 10 is for instance formed by a straight piece of wire 12 which extends perpendicularly of leg 7 and is connected thereto by means of a connection piece 13 which in turn extends perpendicularly of leg 7 and is connected at an angle of 45° to wire piece 12. Finally, wire piece 12 is connected, once again at an angle of 45°, to a last wire piece 13.
  • the whole piece of wire 6 is connected to spacer body 4 in that the U-shaped part 9 is cast into the concrete of body 4, as shown in figure 5.
  • the form of the hooks with the straight pieces of wire 11,12 serves to prevent the spacers according to the invention becoming mutually entangled with their hooks when they are tipped into a box or bag.
  • legs 7,8 has the purpose of ensuring that the spacer can be fixed to concrete reinforcing bars of diverse form and diameter; the distance between the upper surface of body 4 and wire piece 11,12 is anyway variable to a large degree owing to the great length of legs 7,8.
  • the shape of the wire piece 11,12 likewise results in a good attachment being obtained to reinforcing bars of the most varying form.
  • the great length of the legs provides the possibility of attaching the spacer to concrete reinforcing bars at the position of intersections.
  • body 4 can be picked up with one hand, wherein the first hook 10 can be hooked easily round the piece of reinforcing bar 2, whereafter the other hook can be arranged by manipulating body 4.
  • Figure 2 shows an embodiment wherein the configuration of the body is simplified; the body has a purely conical form.
  • figure 5 shows a casting mould 15 for casting the spacers; as shown in figure 5, a piece of wire 6 is herein initially placed in each of the cavities 16 in casting mould 15, whereafter cavity 16 can be filled with concrete. After sufficient curing the thus manufactured spacer can be removed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
EP98201242A 1997-04-17 1998-04-17 Espaceur pour armatures de béton Expired - Lifetime EP0874098B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1005831A NL1005831C2 (nl) 1997-04-17 1997-04-17 Afstandhouder voor betonijzer.
NL1005831 1997-04-17

Publications (2)

Publication Number Publication Date
EP0874098A1 true EP0874098A1 (fr) 1998-10-28
EP0874098B1 EP0874098B1 (fr) 2003-10-29

Family

ID=19764804

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98201242A Expired - Lifetime EP0874098B1 (fr) 1997-04-17 1998-04-17 Espaceur pour armatures de béton

Country Status (4)

Country Link
EP (1) EP0874098B1 (fr)
AT (1) ATE253157T1 (fr)
DE (1) DE69819236T2 (fr)
NL (1) NL1005831C2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1012540C2 (nl) * 1999-07-08 2001-01-15 Molenaar Betonindustrie B V Afstandhouder voor het op een voorafbepaalde afstand houden van een wapening ten opzichte van een gekozen vlak.
RU2175287C1 (ru) * 2001-01-17 2001-10-27 Акционерное общество открытого типа "Завод железобетонных изделий-6" Способ и устройство для изготовления железобетонных изделий с каналами для электропроводки
ES2610796A1 (es) * 2016-11-11 2017-05-03 Baupanel System S.L Procedimiento para hormigonar forjados y cubiertas de paneles estructurales de hormigón armado con núcleo de poliestireno expandido
CN110206222A (zh) * 2019-05-15 2019-09-06 王启玲 一种新型保温拉结件

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2144093A1 (de) 1971-09-02 1973-03-15 Peter Gander Abstandshalter fuer eine schalungsnahe armierung
DE2308765A1 (de) * 1973-02-22 1974-09-05 Helmut Jauch Abstandshalter fuer die armierung von betonrohren
NL7601430A (nl) 1975-02-20 1976-08-24 Huebner Handel Huewa Afstandhouder, in het bijzonder gevormd uit ge- goten, geperste of samengeperste materialen, zo- als beton, asbest of dergelijke materialen, met kleminrichting.
US4147008A (en) * 1977-07-11 1979-04-03 Horst Eisner Resilient reinforcement spacer
CH619018A5 (en) * 1977-06-02 1980-08-29 Constri Beteiligungs Ag Holder for fixing reinforcing-steel members

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2144093A1 (de) 1971-09-02 1973-03-15 Peter Gander Abstandshalter fuer eine schalungsnahe armierung
DE2308765A1 (de) * 1973-02-22 1974-09-05 Helmut Jauch Abstandshalter fuer die armierung von betonrohren
NL7601430A (nl) 1975-02-20 1976-08-24 Huebner Handel Huewa Afstandhouder, in het bijzonder gevormd uit ge- goten, geperste of samengeperste materialen, zo- als beton, asbest of dergelijke materialen, met kleminrichting.
CH619018A5 (en) * 1977-06-02 1980-08-29 Constri Beteiligungs Ag Holder for fixing reinforcing-steel members
US4147008A (en) * 1977-07-11 1979-04-03 Horst Eisner Resilient reinforcement spacer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1012540C2 (nl) * 1999-07-08 2001-01-15 Molenaar Betonindustrie B V Afstandhouder voor het op een voorafbepaalde afstand houden van een wapening ten opzichte van een gekozen vlak.
RU2175287C1 (ru) * 2001-01-17 2001-10-27 Акционерное общество открытого типа "Завод железобетонных изделий-6" Способ и устройство для изготовления железобетонных изделий с каналами для электропроводки
ES2610796A1 (es) * 2016-11-11 2017-05-03 Baupanel System S.L Procedimiento para hormigonar forjados y cubiertas de paneles estructurales de hormigón armado con núcleo de poliestireno expandido
CN110206222A (zh) * 2019-05-15 2019-09-06 王启玲 一种新型保温拉结件

Also Published As

Publication number Publication date
DE69819236T2 (de) 2004-07-29
ATE253157T1 (de) 2003-11-15
EP0874098B1 (fr) 2003-10-29
NL1005831C2 (nl) 1998-11-05
DE69819236D1 (de) 2003-12-04
NL1005831A1 (nl) 1998-10-20

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