US20220412073A1 - Anchor rail and method for producing an anchor rail - Google Patents

Anchor rail and method for producing an anchor rail Download PDF

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Publication number
US20220412073A1
US20220412073A1 US17/787,671 US202117787671A US2022412073A1 US 20220412073 A1 US20220412073 A1 US 20220412073A1 US 202117787671 A US202117787671 A US 202117787671A US 2022412073 A1 US2022412073 A1 US 2022412073A1
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United States
Prior art keywords
wall
rail
web
anchor
inwardly projecting
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Pending
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US17/787,671
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English (en)
Inventor
Wilhelm Jochen Peter Modersohn
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.)
Wilhelm Modersohn GmbH and Co KG
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Wilhelm Modersohn GmbH and Co KG
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Application filed by Wilhelm Modersohn GmbH and Co KG filed Critical Wilhelm Modersohn GmbH and Co KG
Assigned to WILHELM MODERSOHN GMBH & CO KG reassignment WILHELM MODERSOHN GMBH & CO KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Modersohn, Wilhelm Jochen Peter
Publication of US20220412073A1 publication Critical patent/US20220412073A1/en
Pending legal-status Critical Current

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    • 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

Definitions

  • the present invention relates to an anchor rail for fixing fastening means, having a first rail part and a second rail part, which are connected to one another, and on each of which anchor webs are formed, wherein a channel-shaped receptacle for a head section of a fastening means is formed between a first wall of the first rail part and a second wall of the second rail part, and an inwardly projecting web is provided on the first wall and an inwardly projecting web is provided on the second wall, and the inwardly projecting webs cover the channel-shaped receptacle at the edge, and a method for producing an anchor rail.
  • EP 1 764 448 A2 discloses an anchor rail in which anchor webs are formed on a first rail part, which is connected to a second C-shaped rail part in a bottom area. This connection point between the two rail parts forms a weak point that can fail when fastening means are inserted into the second rail part and high forces are applied.
  • anchor rails in which the anchor rail is made from two rail parts are known (DE 10 2008 029 838 A1, DE 10 2018 003 160 A1), wherein each rail part comprises anchor webs and forms a wall which surrounds a channel for receiving fastening means.
  • a bent-over, inwardly projecting web is formed on each wall which can be engaged behind by a head section of a fastening means. This allows tensile forces through the fastening means to be introduced directly into the anchor webs via each rail section, resulting in high holding forces.
  • Such anchor rails have generally proven themselves, but bending high-strength steel sheets is problematic, especially if they are to be produced with somewhat greater thickness. In the area of the channel-shaped receptacle, an inwardly projecting web on a wall section is bent almost at right angles, which limits the strength and thickness of the steel sheet and thus also the maximum holding forces permitted by the anchor rail.
  • a channel-shaped receptacle for a head section of a fastening means is formed between a first wall and a second wall, wherein an inwardly projecting web is provided on each wall, which covers the channel-shaped receptacle at the edge, and an outwardly projecting support web protrudes at least in sections on the first and/or second wall opposite the inwardly projecting web.
  • the inwardly projecting web When a tensile load is applied by a fastening means, the inwardly projecting web is pivoted slightly in a direction away from the anchor rail, wherein deformation is limited by the outwardly projecting support web, which forms an abutment.
  • the outwardly projecting support web is supported on the cast material and can thus counteract deformation at the inwardly projecting web. This also prevents deformation of the wall, which acts as a kind of bending bearing.
  • the attachment of at least one support web thus increases the strength of the anchor rail in this area, resulting in the provision of higher holding forces.
  • a support web is provided on both the first and the second wall, in particular a continuous support web, which extends over substantially the same length as the inwardly projecting web. This allows support to be provided over the entire length of the anchor rail. Alternatively, several sections of support webs can be fixed to one wall each.
  • the first wall, the inwardly projecting web and the outwardly projecting support web are preferably designed T-shaped in cross-section, so that the first wall is aligned essentially at right angles to the inwardly projecting web and the support web.
  • the support web can be welded to the first or second wall, for example by a laser welding process.
  • the support web is integrally formed with the inwardly projecting web so that they can be fixed to the first or second wall with high accuracy. Tests have shown that a sufficiently stable connection between webs and the wall aligned at an angle to them can be produced by a welded connection, in particular by laser welding.
  • the support web and the inwardly projecting web are made of a metal sheet, in particular a steel sheet, which is thicker than the first and second rail parts, which are preferably also made of a metal sheet, in particular a steel sheet.
  • the inwardly projecting web, against which a head section of a fastening means rests can be of particularly stable design.
  • the inwardly projecting web is preferably at least 20% thicker, for example at least 1 mm thicker, than one of the two rail parts forming the walls.
  • the support web and the inwardly projecting web may be formed from a material of higher strength than the first and second rail parts.
  • a high-strength steel sheet to produce a strip-shaped blank for the support web and the inwardly projecting web, the area subjected to forces by fastening means can be made more stable even with the same thickness as the rail part by selecting a suitable material.
  • the support web and the inwardly projecting web are preferably made from a flat steel sheet, in particular by a strip-shaped blank, wherein this blank is connected to the first or second wall in a central region by a welded butt seam.
  • the inwardly projecting web and the support web can project from the respective wall by, for example, 1 mm to 20 mm, in particular 3 mm to 12 mm.
  • the thickness of the strip-shaped blank for producing the two webs can be, for example, between 2 mm to 10 mm, in particular 3 mm to 8 mm.
  • Each rail part is preferably made of a bent steel sheet.
  • the anchor webs are preferably aligned at an angle to the respective wall on the rail part.
  • the first and second rail parts can be connected to each other by welded connecting webs, as disclosed for example in DE 10 2020 103 568.
  • the two rail parts can also be integrally formed with each other and manufactured from a single blank.
  • the inwardly projecting webs each have a toothing in order to be able to fix the fastening means in the longitudinal direction of the anchor rail.
  • a retaining plate with teeth at the edge can be provided, as disclosed in DE 10 2020 102 977.
  • two blanks for a first and a second rail part with anchor webs are made from a steel sheet and strip-shaped blanks are made from a steel sheet.
  • a first strip-shaped blank is welded to a first wall of a first rail part and a second strip-shaped blank is welded to a second wall of the second rail part.
  • the two rail parts are joined to one another, in particular by welding, before or after the strip-shaped blanks are welded together, wherein a channel-shaped receptacle for a head section of a fastening means is formed between the first wall and the second wall, and each strip-shaped blank forms an inwardly projecting web on the first or second wall, which covers the receptacle at the edge, and an outwardly projecting support web.
  • a channel-shaped receptacle for a head section of a fastening means is formed between the first wall and the second wall
  • each strip-shaped blank forms an inwardly projecting web on the first or second wall, which covers the receptacle at the edge, and an outwardly projecting support web.
  • the welding of the first and second strip-shaped blanks is performed by laser welding, in which the material in the contact area between the strip-shaped blank and an end face of a wall of a rail part is melted without welding additions.
  • This allows the inwardly projecting web to be positioned on the first or second rail part with a high degree of accuracy.
  • a strip-shaped blank is welded to an end face of each of the first or second walls in a central region via a butt seam so that the strip-shaped blank protrudes from the respective wall on opposite sides.
  • FIGS. 1 A and 1 B show two views of an anchor rail according to the invention
  • FIG. 2 shows a sectional view through the anchor rail of FIG. 1 .
  • FIG. 3 shows a sectional view through the anchor rail of FIG. 1 with a fastening means.
  • An anchor rail 1 comprises two rail parts 2 a and 2 b which are made of a metal sheet, in particular a steel sheet. Integrally formed anchor webs 3 are provided on each rail part 2 a and 2 b , which have a widened foot section 4 and are later immersed in a cast body, in particular one of concrete.
  • a recess 5 is provided at least on one part of the anchor webs 3 in order to use the web-shaped material punched out on three sides at the recess 5 to produce a connecting web 6 a or 6 b .
  • the connecting webs 6 a and 6 b are of stepped design at their facing end so that the two rail parts 2 a and 2 b can be fixed at a predefined distance.
  • the connecting webs 6 a and 6 b are preferably welded together as described in DE 10 2020 103 568.
  • FIG. 2 there is a wall 8 a on the first rail part 2 a , and spaced from the first wall 8 a a second wall 8 b formed integrally with the second rail part 2 b .
  • a channel-shaped receptacle 13 for inserting a head section of a fastening means is formed between the two walls 8 a and 8 b .
  • the channel-shaped receptacle 13 is bounded by the connecting webs 6 a and 6 b , which are fixed to each other.
  • the anchor webs 3 are aligned at an angle to the wall 8 a or 8 b , preferably by an angle ⁇ , which can lie in a range between 5° and 30°.
  • a kink 9 is provided between the anchor bars 3 and the wall 8 a or 8 b.
  • An inwardly projecting web 10 is provided on opposite sides of the channel-shaped receptacle 13 .
  • the two inwardly projecting webs 10 cover the edge of the channel-shaped receptacle 13 and leave a slot through which the fastening means with the head section can be inserted into the channel-shaped receptacle 13 .
  • a toothing 11 is formed on the inwardly projecting webs 10 in order to be able to fix the fastening means in the longitudinal direction of the anchor rail 1 .
  • the inwardly projecting webs 10 are not integrally formed with one of the rail parts 2 a or 2 b , but are made from a strip-shaped blank which also forms an outwardly projecting support web 12 .
  • This flat blank is preferably made of a steel sheet which is connected in a central region to an end face of the first wall 8 a or the second wall 8 b by a welded butt seam 14 .
  • the inwardly projecting web 10 and the support web 12 thus protrude from the respective wall 8 a or 8 b on opposite sides.
  • the anchor rail 1 is shown with a fastening means 20 in the form of a hammerhead screw.
  • a head section 21 of the fastening means 20 has been inserted into the channel-shaped receptacle 13 and rotated so that the head section 21 engages behind the two inwardly projecting webs 10 .
  • a threaded section 22 protrudes from the head section 21 from the anchor rail 1 , to which further components can be attached.
  • a retaining bracket 30 which has a projecting flange 31 on opposite sides in each case, which can be fixed to a formwork component by means of fastening means, for example nails.
  • a bracket-shaped section 32 thereby embraces the channel-shaped receptacle 13 , which is surrounded by the walls 8 a and 8 b and the connecting webs 6 a and 6 b .
  • the retaining bracket 30 may be designed as described in DE 10 2019 124 308.
  • two blanks are made from a steel sheet, from which the first and second rail parts with the anchor webs are formed.
  • strip-shaped blanks are produced from a steel sheet which later form the inner webs 10 and the support webs 12 .
  • the steel sheet for the strip-shaped blank can be thicker and/or of higher strength than the steel sheet for the rail parts.
  • the thickness of the strip-shaped blanks may be 20% greater than the thickness of the blanks made of the steel sheet for the rail parts.
  • the thickness can be more than 0.5 mm, in particular more than 1 mm.
  • a steel sheet can be selected for the strip-shaped blank which has a higher strength than the steel sheet for producing the rail parts.
  • a first blank is welded to a first wall 8 a of the first rail part 2 a and a second strip-shaped blank is welded to a second wall 8 b of the second rail part 2 b .
  • the welding is preferably carried out using a laser welding process, in which the material on the wall 8 a or 8 b is melted in the area of the contact surface to the strip-shaped blank with or without welding additions.
  • the strip-shaped blank is welded in a central area via a butt seam 14 .
  • the two rail parts 2 a and 2 b can be welded to each other via the connecting webs 6 a and 6 b , wherein preferably the rail parts 2 a and 2 b are manufactured individually with the welded-on blanks, since these can be manufactured identically. After the weld has been produced, the rail parts 2 a and 2 b can then be welded together via the connecting webs 6 a and 6 b.
  • the connecting webs 6 a and 6 b are made of material provided by making a recess 5 on the anchor webs 3 . It is obviously also possible to connect the rail parts 2 a and 2 b by connecting webs made from the blank for the rail parts 2 a and 2 b at a different position. In addition, separate connecting webs made of a different material can also be used to connect the two rail parts 2 a and 2 b . In a further alternative, the rail parts 2 a and 2 b can also be manufactured in one piece.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Forging (AREA)
  • Control Of Metal Rolling (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Braking Arrangements (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
US17/787,671 2020-08-06 2021-07-06 Anchor rail and method for producing an anchor rail Pending US20220412073A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102020120750.6A DE102020120750A1 (de) 2020-08-06 2020-08-06 Ankerschiene und Verfahren zur Herstellung einer Ankerschiene
DE102020120750.6 2020-08-06
PCT/EP2021/068684 WO2022028799A1 (de) 2020-08-06 2021-07-06 Ankerschiene und verfahren zur herstellung einer ankerschiene

Publications (1)

Publication Number Publication Date
US20220412073A1 true US20220412073A1 (en) 2022-12-29

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Family Applications (1)

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US17/787,671 Pending US20220412073A1 (en) 2020-08-06 2021-07-06 Anchor rail and method for producing an anchor rail

Country Status (15)

Country Link
US (1) US20220412073A1 (de)
EP (1) EP4062003B1 (de)
JP (1) JP2023535660A (de)
KR (1) KR20230047947A (de)
AU (1) AU2021322640B2 (de)
CA (1) CA3165222A1 (de)
DE (1) DE102020120750A1 (de)
DK (1) DK4062003T3 (de)
ES (1) ES2943015T3 (de)
FI (1) FI4062003T3 (de)
HU (1) HUE061975T2 (de)
IL (1) IL296079A (de)
LT (1) LT4062003T (de)
PL (1) PL4062003T3 (de)
WO (1) WO2022028799A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022101225A1 (de) 2022-01-19 2023-07-20 Wilhelm Modersohn Gmbh & Co Kg Befestigungsvorrichtung, Verfahren zur Montage einer Ankerschiene in einem Baukörper und Baukörper

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1708091A (en) * 1927-06-08 1929-04-09 John A Healy Insert
US1710422A (en) * 1924-03-22 1929-04-23 Kehm August Support
US2062802A (en) * 1936-01-07 1936-12-01 David V Walker Display appliance
US2820645A (en) * 1955-01-10 1958-01-21 Smith Corp A O X-member vehicle frame
US2844864A (en) * 1955-01-10 1958-07-29 Smith Corp A O Method of making i-beams for vehicle frames
US3123978A (en) * 1964-03-10 H-beam pile cutter and combination with h-beam pile
US3487518A (en) * 1965-08-12 1970-01-06 Henry Hopfeld Method for making a reinforced structural member
US4070845A (en) * 1976-02-17 1978-01-31 Symons Corporation Multi-purpose concrete formwork structural member with novel facilities for extending the effective length thereof
DE10306511B3 (de) * 2003-02-14 2004-07-22 Deutsche Kahneisen Gesellschaft Mbh Verfahren zur Herstellung einer Ankerschiene für die Bautechnik und Ankerschiene für die Bautechnik
US20060032182A1 (en) * 2004-08-02 2006-02-16 Barry Carlson Engineered structural members and methods for constructing same
US20100101175A1 (en) * 2008-10-27 2010-04-29 Mitek Holdings, Inc. Locking concrete insert
US20110108530A1 (en) * 2009-11-06 2011-05-12 Martin Andrew V System and method for welding

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE532717C (de) * 1931-09-03 Arnold Gruen Dipl Ing Geschlitzte Ankerschiene mit Verankerungsbuegeln fuer Eisenbetonbauten
GB2430206B (en) 2005-09-16 2007-09-12 Laing O Rourke Plc Fixing embedments in reinforced concrete
DE102008029838A1 (de) 2008-06-25 2009-12-31 Wilhelm Modersohn Gmbh & Co Kg Ankerschiene
DE102018003160A1 (de) 2018-04-17 2019-10-17 Wilhelm Modersohn Gmbh & Co Kg Ankerschiene
DE102019124308A1 (de) 2019-09-10 2021-03-11 Wilhelm Modersohn Gmbh & Co Kg Verankerungselement und Verfahren zur Montage einer Ankerschiene in einem Baukörper aus Beton
DE102020102977A1 (de) 2020-02-05 2021-08-05 Wilhelm Modersohn Gmbh & Co Kg Befestigungsvorrichtung, Montageeinheit und Verfahren zur Montage einer Hammerkopfschraube an einer Ankerschiene
DE102020103568A1 (de) 2020-02-12 2021-08-12 Wilhelm Modersohn Gmbh & Co Kg Ankerschiene und Verfahren zur Herstellung einer Ankerschiene

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123978A (en) * 1964-03-10 H-beam pile cutter and combination with h-beam pile
US1710422A (en) * 1924-03-22 1929-04-23 Kehm August Support
US1708091A (en) * 1927-06-08 1929-04-09 John A Healy Insert
US2062802A (en) * 1936-01-07 1936-12-01 David V Walker Display appliance
US2820645A (en) * 1955-01-10 1958-01-21 Smith Corp A O X-member vehicle frame
US2844864A (en) * 1955-01-10 1958-07-29 Smith Corp A O Method of making i-beams for vehicle frames
US3487518A (en) * 1965-08-12 1970-01-06 Henry Hopfeld Method for making a reinforced structural member
US4070845A (en) * 1976-02-17 1978-01-31 Symons Corporation Multi-purpose concrete formwork structural member with novel facilities for extending the effective length thereof
DE10306511B3 (de) * 2003-02-14 2004-07-22 Deutsche Kahneisen Gesellschaft Mbh Verfahren zur Herstellung einer Ankerschiene für die Bautechnik und Ankerschiene für die Bautechnik
US20060032182A1 (en) * 2004-08-02 2006-02-16 Barry Carlson Engineered structural members and methods for constructing same
US20100101175A1 (en) * 2008-10-27 2010-04-29 Mitek Holdings, Inc. Locking concrete insert
US20110108530A1 (en) * 2009-11-06 2011-05-12 Martin Andrew V System and method for welding

Also Published As

Publication number Publication date
AU2021322640A1 (en) 2022-06-30
LT4062003T (lt) 2023-04-25
HUE061975T2 (hu) 2023-09-28
WO2022028799A1 (de) 2022-02-10
ES2943015T3 (es) 2023-06-08
KR20230047947A (ko) 2023-04-10
CA3165222A1 (en) 2022-02-10
EP4062003B1 (de) 2023-01-25
FI4062003T3 (fi) 2023-05-02
EP4062003A1 (de) 2022-09-28
PL4062003T3 (pl) 2023-05-29
AU2021322640B2 (en) 2022-11-17
JP2023535660A (ja) 2023-08-21
DE102020120750A1 (de) 2022-02-10
DK4062003T3 (da) 2023-04-24
IL296079A (en) 2022-11-01

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