EP0241727A2 - Espaceur - Google Patents

Espaceur Download PDF

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Publication number
EP0241727A2
EP0241727A2 EP87103731A EP87103731A EP0241727A2 EP 0241727 A2 EP0241727 A2 EP 0241727A2 EP 87103731 A EP87103731 A EP 87103731A EP 87103731 A EP87103731 A EP 87103731A EP 0241727 A2 EP0241727 A2 EP 0241727A2
Authority
EP
European Patent Office
Prior art keywords
holding element
blocks
spacer
holding
spacer according
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
EP87103731A
Other languages
German (de)
English (en)
Other versions
EP0241727B1 (fr
EP0241727A3 (en
Inventor
Ludwig Penzkofer
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.)
Max Frank GmbH and Co KG
Original Assignee
Max Frank GmbH and Co KG
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 Max Frank GmbH and Co KG filed Critical Max Frank GmbH and Co KG
Priority to AT87103731T priority Critical patent/ATE72287T1/de
Publication of EP0241727A2 publication Critical patent/EP0241727A2/fr
Publication of EP0241727A3 publication Critical patent/EP0241727A3/de
Application granted granted Critical
Publication of EP0241727B1 publication Critical patent/EP0241727B1/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
    • 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
    • E04C5/168—Spacers connecting parts for reinforcements and spacing the reinforcements from the form

Definitions

  • the invention relates to a spacer according to the preamble of protection claim 1.
  • Spacers of this type are known per se and are used for the concrete reinforcement (reinforcing iron, structural steel mat, etc.) that is introduced into a formwork for the production of a concrete component (eg concrete wall, concrete ceiling, etc.). to keep at a required distance from the adjacent inner surface of a formwork wall.
  • a concrete component eg concrete wall, concrete ceiling, etc.
  • rod-shaped spacers have been proposed for the stated purpose, which consist of an elongated element made of cement-bound material (e.g.
  • fiber-reinforced concrete with its own longitudinal reinforcement and are used in such a way that they lie against the concrete reinforcement with one long side and with an opposite one , Support surface area extending in the longitudinal direction of the rod-shaped element on the inner surface of the formwork.
  • the production of the spacers or the rod-shaped elements from cement-bound material ensures that there is only cement-bound material on the outer surface of the finished concrete component and that all other elements, such as retaining clips, etc., are embedded sufficiently deep in the concrete of the finished concrete component.
  • the invention has for its object to show a spacer, which can be manufactured particularly price-wise, but nevertheless a flawless, precise position and before allom search Stop at the permitted as well as a large area of concrete reinforcement against the adjacent formwork wall in the required distance guaranteed.
  • a spacer is designed in accordance with the characterizing part of protection claim 1.
  • the holding element formed by an elongated element ensures that the spacer is in contact with the seton reinforcement at at least two spatially separate points, so that, in addition to a large-area support of the concrete reinforcement at the required distance from the formwork wall, the spacer is also secured against rotation.
  • the contact surface of the spacer on the formwork wall is formed from the side of the blocks away from the retaining element made of cement-bound material, so that when the finished concrete component is made of plastic and therefore very inexpensive and low-weight, the retaining element is embedded sufficiently deep in the concrete component and only cement-bound Material and no foreign objects reach the outer surface of the finished concrete component.
  • the blocks made of cement-bound material can be manufactured very inexpensively and without the need for their own reinforcement by extrusion and a subsequent separation process in the required size and length.
  • the support element is formed particularly inexpensively from a length of a plastic profile.
  • At least at the two ends or where the holding element also bears against the concrete reinforcement at least one block is provided on it. Further developments of the invention are the subject of the subclaims.
  • 1 is a vertical formwork wall of a formwork for producing a concrete component (for example a boton wall) and 2 and 3 are two reinforcing bars of a concrete reinforcement (with their longitudinal extension each parallel to the surface sides of the formwork wall 1 and spaced apart from one another). for example block mat), which are arranged in the vertical direction to oversize.
  • a concrete component for example a boton wall
  • 2 and 3 are two reinforcing bars of a concrete reinforcement (with their longitudinal extension each parallel to the surface sides of the formwork wall 1 and spaced apart from one another). for example block mat), which are arranged in the vertical direction to oversize.
  • spacers 4a to 4f are used used, each consisting of a strip-like holding element 5a to 5f made of plastic, at least two blocks 6a to 6f made of cement-bound material, preferably fiber concrete, are attached to a common longitudinal side of this holding element in such a way that these holding blocks protrude beyond the common longitudinal side and from each at least two holding blocks of the spacer in question, one each in the area of each end of FIGS. 5a to 5f.
  • the holding element 5a there which essentially has a rectangular cross section, is designed such that it or its broad sides 7 and S (surface sides with the greater width in the direction perpendicular to the longitudinal extent of the holding element) has at both ends a section 9 or 10 with a greater width than in the area between these sections.
  • the holding pin 11 is formed, which is provided on its outer surface with a barb-like profile and into a recess 12 designed as a blind bore engages, which is provided on an end face 13 of a block 6a.
  • each block 6a lies flat against the broad face 7 in the area of the section 9 or 10.
  • Each block 6a is held on the holding element 5a by the pin 11 engaging in the recess 12.
  • the pins 11 make it possible to reproduce the two blocks 6a the manufacture or shaping of the helte element 5a, but preferably to be fastened to the holding element 5a by a clamp fit immediately before the use of the end holder 4a.
  • a nose section 15 is formed with one end, which (outside the transition area 15 'to which the nose-like extension merges into the holding element 5a) forms a leg section 15 " , which runs parallel to the longitudinal extent of the holding element 5a and is at a distance from the broad side 8.
  • the leg section 15 "of each nose-like attachment 15 is provided with ribs 16 which act like barbs.
  • each nose-like occasion 15 ' forms, together with the part of the holding element 5a opposite this leg section, a U-shaped holding clip, both holding clips at a common end, that is to say at the lower end of the holding element 5a in FIGS. 1 and 2 are open.
  • the retaining element 5a can be pushed onto the reinforcing bars 2 and 3 in such a way that the nose-like projections 15 and the partial areas of the retaining element 5a opposite these projections are gripped like clips, the reinforcing bars 2 and 3 against the sections 9 and 10 rest on the broad side 8 of the holding element over a large area.
  • the barb-like projections 16 prevent the attached spacer 4a from sliding down from the concrete reinforcement or the reinforcing bars 2 and 3.
  • the holding element 5a is held at both ends on a reinforcement bar 2 or 3 and is supported on the broad side 7 facing away from the respective reinforcement bar, specifically directly opposite the reinforcement bar, in each case by means of the block 6a against the inner surface of the formwork wall 1, it is not only a spacer function achieved between the concrete formwork and the formwork wall over a large area, but before. everyone also ensured that the spacer 4a is opposite the concrete reinforcement or the reinforcing bars 2 and 3 cannot twist out of the prescribed target position when pouring the concrete, etc.
  • the blocks 6a which have a greater length in the direction between the end face 13 and the contact surface 14 than the length of the pin 11, also ensure that after the completion of the concrete component, the holding element 5a with all its parts, in particular also with the pin 13 is embedded sufficiently deep in the finished concrete component, only cement-bound material, namely the material of the blocks 6a, is present on the outer surface of the finished concrete component even in the area of the spacers 4a.
  • the blocks 6a are, for example, cube-shaped or cuboid, or else circular-cylindrical, in the latter case the axis of symmetry of the blocks 6a being coaxial with the axis of the respective pin 11. Of course, other shapes for the blocks 6a are also conceivable.
  • the 5a has more than two blocks 6a on the broad side 7 or is provided on the broad side 8 with more than two lugs 15, each forming a retaining clip, so that the retaining element 5a then on three or more can be attached as three reinforcing bars of the concrete reinforcement.
  • the distance between the two lugs 15 in the direction of the longitudinal extension of the holding element 5a preferably corresponds to the standard distance of the reinforcing bars. 2 and 3 for steel mesh.
  • the holding element 5b is formed by a plastic profile with a T-shaped cross section, the quar web 17 with one surface side or broad side of which forms the contact surface of the spacer 4b on the concrete reinforcement and on the other surface side in the middle a strip-like protrusion projecting above this surface side Projection 18 is formed, which lies with its longitudinal extension in the direction of the longitudinal extension of the profile and extends over the entire length of this profile.
  • the blocks 6b are placed on the projection 18, namely at least one block at each end of the holding element 5b.
  • each block 6b is provided on the end face 13 with a groove 19 which extends over the entire width of the end face 13 and into which the projection 18 engages and is held there by barbs which act on the two long sides of the projection and act as barbs.
  • pins corresponding to the pins 11 can also be provided on the surface side of the crossbar 17 in question, which pins then each engage a block 6b in a recess formed as a blind bore.
  • the holding element 5c consists of a U-profile made of plastic, the blocks 6c, which have a square or rectangular cross-section in the cross-sectional planes parallel to the contact surface 14, between the legs 20 of the U-profile clamped at one end and held there by barb-like ribs provided on the mutually facing surfaces of these legs.
  • the surface side of the yoke section 21 facing away from the legs 20 forms the contact surface of the spacer on the concrete reinforcement.
  • the holding element 5d there is formed by a profile strip made of plastic, which in cross section has a wider leg section or transverse web 22, one surface side of which forms the contact surface of the spacer on the concrete reinforcement and the other surface side thereof in the middle has a strip-like longitudinal web 23 projecting above this surface side and extending over the entire length of the holding element 5d, the surface of the longitudinal web 23 being perpendicular to the surface of the transverse web 22 and at its free end in the with animal area of a Guersteg 24 passes with prevented width, the latter with its surface sides parallel to and at a distance from the surface sides of the crossbar 22 and together with the longitudinal day 23 forms a T-profile.
  • the blocks 6d are provided on their end face 13 with a recess 25 extending over the entire width of this end face, the width of which on the end face is approximately equal to the width of the longitudinal web 23 and widened on both sides inside the block 6d in such a way that for the recess 25 results in a T-shaped cross section.
  • the blocks 6d can thus be pushed from one or both ends onto the holding element or onto the T-profile formed by the webs 23 and 24 and, by engaging behind the wider part of the recess 25 through the crossbar 24 on the holding element 5d held positively in the direction perpendicular to the longitudinal extent of this holding element.
  • the clamps 6d are then non-displaceably fastened to the holding element 5d in the longitudinal direction by means of a clamp fit or by means of additional clamping or locking means (not shown).
  • the blocks 6d are approximately triangular or wedge-shaped on their side opposite the end face 13, the resulting tip, rounded in the embodiment shown, forming the contact surface 14 'with which the block 6d in question lies against the inner surface of the formwork wall 1 .
  • This triangular or wedge-shaped design of the block 6d has the additional advantage that the blocks 6d are only visible on the outer surface of the finished concrete component with a minimal area, but above all the advantage that they are not exactly parallel to the inner surface of the formwork wall 1 Armierisen 3 an optimal contact of the blocks 6d on the inner surface of the formwork wall 1 is guaranteed.
  • the spacer 4e shown in FIG. 6 has a holding element 5e, which is formed by an O-shaped profile strip which has a leg section 26 arranged in cross section 2 in parallel and at a distance from one another, a joint section 27 connecting these leg sections to one another and on the free longitudinal edges of each leg section 26 has an inward bend 28.
  • the blocks 6e are designed similarly to the blocks 6d, but are provided with a groove-shaped depression 30 on two longitudinal sides 29 which are parallel to one another and at a distance from one another and each adjoin the end face 13.
  • the blocks 6e are pushed onto the holding element 5e in such a way that the bends 23 each engage in a groove-shaped depression 30 and thus the blocks 6e are held in a forrisch-closed manner in the direction perpendicular to the longitudinal extension of the holding element 5e.
  • a corresponding clamp seat or other latching or holding elements also prevents the blocks 6e from being displaced in the longitudinal direction of the holding element 5e.
  • the surface side of the yoke section 27 facing away from the leg section 26 in turn forms the contact surface of the spacer on the concrete reinforcement.
  • Fastening elements for example in the form of a holding clip 31 formed by a steel wire, are provided on the holding element 5e for fastening to the concrete reinforcement, as is the case with the holding elements 5b to 5d. Others on the attachment to the concrete reinforcement, for example with the aid of binding wires, which are passed through prepared openings of the holding elements 5b to 5e, are also conceivable.
  • the spacers 4b to 4e have the advantage that the associated holding elements can be manufactured inexpensively from profiled goods. In addition, in the case of the spacers 4b to 4e, the number of blocks used and their arrangement on the holding elements can be adapted precisely to the respective intended use.
  • FIG. 7 finally shows in a partial representation a spacer 4f with a holding element 5f corresponding to 5d, two latching lugs 32 being formed on the transverse web 24 at both ends of the holding element, which project with their free ends over the narrow sides of the transverse web 25.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Materials For Medical Uses (AREA)
  • Paper (AREA)
  • Prostheses (AREA)
EP87103731A 1986-03-19 1987-03-14 Espaceur Expired - Lifetime EP0241727B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87103731T ATE72287T1 (de) 1986-03-19 1987-03-14 Abstandshalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8607577U 1986-03-19
DE8607577U DE8607577U1 (de) 1986-03-19 1986-03-19 Abstandshalter

Publications (3)

Publication Number Publication Date
EP0241727A2 true EP0241727A2 (fr) 1987-10-21
EP0241727A3 EP0241727A3 (en) 1989-10-25
EP0241727B1 EP0241727B1 (fr) 1992-01-29

Family

ID=6792869

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87103731A Expired - Lifetime EP0241727B1 (fr) 1986-03-19 1987-03-14 Espaceur

Country Status (3)

Country Link
EP (1) EP0241727B1 (fr)
AT (1) ATE72287T1 (fr)
DE (2) DE8607577U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2206619A (en) * 1987-07-04 1989-01-11 Donald Taylor Reinforcement spacer for concrete reinforcement grids

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7432249U (de) * 1975-01-16 Winter G Vorrichtung zur Festhaltung von Abstandhaltern aus Beton oder Asbestbeton an Armierungen beim Betonieren von Wänden und Decken sowie Fertigteilen aus Beton
DE2540065A1 (de) * 1975-09-09 1977-03-17 Fritz Koehlmann Verfahren und vorrichtung zum verlegen von stahlgewebearmierungen unter verwendung von betonduebeln
DE8306310U1 (de) * 1983-03-05 1983-06-30 Fa. Adolf Netzow, 2210 Itzehoe Bewehrungstraegermatte mit abstandhaltern fuer die verlegung von fussbodenheizungsrohren
DE3432346A1 (de) * 1984-09-03 1986-03-13 Walter 4000 Düsseldorf Hoff Einsatzkoerper fuer betonschalungen und verfahren zu seiner herstellung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2206619A (en) * 1987-07-04 1989-01-11 Donald Taylor Reinforcement spacer for concrete reinforcement grids
GB2206619B (en) * 1987-07-04 1991-09-25 Donald Taylor Improvements in or relating to spacers

Also Published As

Publication number Publication date
EP0241727B1 (fr) 1992-01-29
EP0241727A3 (en) 1989-10-25
DE3776382D1 (de) 1992-03-12
ATE72287T1 (de) 1992-02-15
DE8607577U1 (de) 1986-05-07

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