EP4330482A1 - Rail d'ancrage - Google Patents

Rail d'ancrage

Info

Publication number
EP4330482A1
EP4330482A1 EP22716226.0A EP22716226A EP4330482A1 EP 4330482 A1 EP4330482 A1 EP 4330482A1 EP 22716226 A EP22716226 A EP 22716226A EP 4330482 A1 EP4330482 A1 EP 4330482A1
Authority
EP
European Patent Office
Prior art keywords
base
rail
profile rail
anchor
profile
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.)
Pending
Application number
EP22716226.0A
Other languages
German (de)
English (en)
Inventor
Christoph Wiedner
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.)
Fischerwerke GmbH and Co KG
Original Assignee
Fischerwerke 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 Fischerwerke GmbH and Co KG filed Critical Fischerwerke GmbH and Co KG
Publication of EP4330482A1 publication Critical patent/EP4330482A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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 invention relates to an anchor rail with the features of the preamble of claim 1.
  • Anchor rails are typically sunk flush in the floor of a building or in a wall, column or ceiling made of concrete and are used to fasten add-on parts such as machines or facade elements using hammer-head screws, for example.
  • “Sunk flush” means that the anchor rail is embedded in the concrete and a side of the anchor rail, referred to here as the top side, is flush with a surface of the concrete, for example.
  • the anchor rails are cast in concrete on three sides.
  • the anchor rails typically have a C-profile rail with a square or rectangular tube profile with a continuous longitudinal slot in a transverse center of the deck.
  • anchor rails are manufactured or extruded from sheet steel or sheet metal in general, although materials other than metal are also possible.
  • Anchors typically protrude straight in a central plane of the anchor rail or at an angle from a base side of the C profile rail of the anchor rail that is opposite the top side.
  • the anchors are cast in concrete and anchor the C profile rail in the structure.
  • the anchors are spaced apart from one another in a longitudinal direction of the anchor rail and the anchors have, for example, a pin-shaped shank with a plate-shaped anchor head.
  • the list is exemplary and not exhaustive.
  • Patent EP 3 081 706 B1 discloses an anchor rail with a C-profile rail, from the base of which anchors protrude outwards in a central plane of the anchor rail.
  • the C-profile rail of the known anchor rail has profiles on the outside of side walls or the base to improve the connection of the anchor rail to the concrete in which it is embedded.
  • the object of the invention is to provide an alternative anchor rail. According to the invention, this object is achieved by an anchor rail having the features of claim 1 .
  • the anchor rail according to the invention has a C-profile rail with a cover side, a base side opposite the cover side and side walls adjoining the base side, which connect the cover side to the base side.
  • the top side and the base side are also walls of the C-profile rail, even if they are referred to as "sides" and not as “walls”.
  • the C profile rail has, for example, a square or rectangular tube profile. Cover side, base side and side walls enclose an interior space of the C-profile rail, which does not mean a complete enclosing.
  • the C profile rail On its side designated as the top side, the C profile rail has a longitudinal slot for inserting a hammer head element into the interior space for attaching an add-on part to the anchor rail.
  • the hammer head element is, for example, a hammer head of a hammer head screw, a hammer head nut or a sliding block.
  • the hammerhead element is aligned lengthwise to the longitudinal slot and is inserted through the longitudinal slot into the interior of the C-profile rail and rotated to engage behind the cover side so that the attachment can be fastened to the C-profile rail of the anchor rail using the hammerhead element.
  • Anchors protrude straight or at an angle from the base of the C profile rail. “Outwards” means directed away from the top side or the interior. If the top side of the anchor rail is concreted flush with the concrete as intended, the anchors protrude straight or at an angle from the bottom side into the concrete and ensure that the anchor rail is held in the concrete Anchor rail has several anchors which are spaced apart from one another in a longitudinal direction, along a longitudinal axis of the anchor rail.The anchors can be at equal or different distances from one another.Several anchors at the same point in the longitudinal direction of the anchor rail are not excluded.
  • the invention provides for a thickening of the cross-section of the base with a special cross-section that changes over the width of the base:
  • the base of the C-profile rail of the anchor rail according to the invention is on the inside and on the outside, in relation to the interior, rounded outwards, i.e. in relation to the interior, an inside of the base of the C profile rail facing the top side is concave transversely to the longitudinal axis of the C profile rail, and an outside of the base side of the C, facing away from the top side -profile rail convex.
  • the inside and the outside of the base of the C profile rail can be circular, elliptical and, in principle, rounded as desired.
  • the base of the C-profile rail has a thickest point at a transverse center and the thickness decreases transversely to the C-profile rail from the thickest point of the base outwards in the direction of the side walls adjoining the base.
  • Transverse center means a center of the base transverse to the longitudinal axis of the C-profile rail, that is, the “transverse center” is a plane that intersects the top side and the base side and in which the longitudinal axis lies.
  • the thickness of the base decreases steadily from the transverse center outwards.
  • the thickness of the base may decrease outwardly to the sidewalls of the C-section rail adjacent to the base, or the thickness of the base decreases only in a central portion of the cross-section of the base terminating at a distance forward of the sidewalls.
  • the middle area is wider than half of the base and preferably extends over at least 60%, in particular at least 75% of the width of the base.
  • the central area, in which the thickness of the base decreases outwards from the transverse center of the base of the C-profile rail is wider than the longitudinal slot in the cover side of the C-profile rail.
  • the outward rounding of the inside of the base of the C-profile rail has the advantage that an interior height of the C-profile rail is increased from an inside of the top side to the inside of the base, and as a result there is more space for the hammer head element, for example, which means that the side walls are smaller can be held.
  • the load-bearing capacity of the anchor is not reduced, since there is no reduction in the thickness of the base. On the contrary, it is particularly thick in the area where the anchors are connected to the base.
  • the base of the C profile rail of the anchor rail according to the invention is preferably at the thickest point, in particular at every point, at least as thick as a wall thickness at any other point of a cross section of the C profile rail.
  • the cross section of the base of the C profile rail or also the cross section of the C profile rail as a whole is preferably symmetrical to a center plane of the C profile rail through the transverse center of the base and through a transverse center of the top side of the C profile rail.
  • One embodiment of the invention provides a ratio of the thickness of the base at the thickest point in the transverse center of the base to a thickness at a thinnest point of the base or on long sides of the base at the transition to the side walls between 1.2 and 2.5, in particular between 1.5 and 2 and preferably between 1.6 and 1.7.
  • a cross section of the C profile rail is preferably constant in a longitudinal direction of the anchor rail. This applies in particular to the base and in any case to longitudinal sections of the C-profile rail between the anchors, which begin and end at a distance from the anchors, which corresponds, for example, to a width or half the width of the base.
  • FIG. 1 shows a cross section of a first exemplary embodiment of an anchor rail according to the invention.
  • FIG. 2 shows a cross section of a second exemplary embodiment of an anchor rail according to the invention.
  • the anchor rail 1 according to the invention shown in FIG. 1 has a C-profile rail 2 which extends in the direction of a longitudinal axis L with an approximately rectangular tubular cross section.
  • the anchor rail also has anchors 3 for anchoring the anchor rail in a concrete structure.
  • the C-profile rail 2 has a cover side 4, a base side 5 opposite the cover side 4, on which the anchors 3 are arranged, and two side walls 6 which adjoin the base side 5 and connect the cover side 4 and the base side 5.
  • the C-profile rail 2 consists of steel.
  • a C profile of the C profile rail 2 can be produced, for example, by roll forming, which is also referred to as roll forming, or by cold rolling. The invention does not exclude other production possibilities.
  • the cover side 4 of the C-profile rail 2 of the anchor rail 1 has a longitudinal slot 7 in its transverse center that is continuous in its longitudinal direction.
  • the "transverse center” is seen as a center plane transverse to the C-profile rail 2, which intersects the cover side 5 and the base side 6 and in which the longitudinal axis L lies.
  • a hammer head element (not shown) can be introduced into the interior 11 of the C profile rail 2 through the longitudinal slot 7 and positioned by rotation in such a way that the hammer head element engages the top side 4 of the C profile rail 2 from behind.
  • Such a hammerhead element can be used to fasten an add-on part, also not shown, to the C-profile rail 2 or to the anchor rail 1 .
  • the hammer head element is, for example, a hammer head of a hammer head screw, a hammer head nut or a sliding block.
  • the anchors 3 protrude outwards from an outside, ie from a side of the base 5 facing away from the cover 4 of the C-profile rail 2 .
  • the anchors 3 have cylinder-pin-shaped anchor shafts 8 with plate-shaped anchor heads 9 at their ends remote from the C-profile rail 2 .
  • the anchors 3 are arranged at equal distances in the longitudinal direction of the anchor rail 1 on the base 5 and in the center plane of the C-profile rail 2 .
  • Other designs or arrangements of the armature 3 are possible.
  • the anchor shafts 8 are welded to the outside of the base 5 of the C profile rail 2 of the anchor rail 1 according to the invention. It's others Types of attachment of the anchor 3 on the base 5 of the C-profile rail 2 possible.
  • the anchor shafts 8 can have a head at their ends close to the C-profile rail 2 , which rests on an inside of the base 5 facing the top side 4 (not shown). In this case, the anchor shafts reach through 8 holes in the base 5 of the C-profile rail 2.
  • the base 5 of the anchor rail 1 has a special cross-section which is thicker in the transverse center of the base 5 than close to the side walls 6:
  • In the transverse center is the thickest point of the cross-section of the base 5. From the thickest point in the transverse center takes the thickness of the base 5 to the outside, that is, in the direction of the side walls 6, from continuously.
  • the inside and the outside of the base side 5 are rounded outwards relative to the interior space 11 , ie away from the cover side 4 . In relation to the interior 11, the inside of the base 5 is therefore concave and the outside of the base 5 is convex.
  • the outside of the base 5 has a smaller radius of curvature than the inside and the radii of curvature of the inside and the outside of the base 5 change over the width of the base 5.
  • circular arcs are also possible, for example, i.e. one over the width of the base 5 constant curvature of the rounding of the inside and the outside of the base 5.
  • the top side 4 and the side walls 6 have constant wall thicknesses; they are as thick as the base side 5 at their thinnest points, i.e. at the transitions to the side walls 6.
  • the invention does not include other designs of the top side 4 and the side walls 6 out.
  • the cross section of the C profile rail 2 of the anchor rail 1 according to the invention is constant in the longitudinal direction of the anchor rail 1 . In any case, this applies to longitudinal sections of the C-profile rail 2 between the anchors 3. In the area of the anchor 3, the cross-section of the C-profile rail 2, in particular the cross-section of the base side 5, can change.
  • the anchor rail 1 is intended for embedding in concrete, for example, in the floor of a building with the top side 4 flush with a surface of the floor/concrete, so that the longitudinal slot 7 for inserting a hammer head element into the C-profile rail 2 of the anchor rail 1 for fastening, for example, a Attachment to the anchor rail 1 is accessible.
  • the anchor 3 are of the Surface of the ground / concrete facing away from the outside of the base 5 of the C-rail 2 away in the concrete and ensure a good grip of the anchor rail 1 in the concrete.
  • the cross-section of the base 5 of the C-profile rail is 2 of the exemplary embodiment of an anchor rail 1 according to the invention shown in FIG. 2 is rounded outwards only in a central area 10 .
  • This central area 10 extends over about 2/3 of an outer width of the C-profile rail 2 and is wider than the longitudinal slot 7.
  • the central area 10, in which the base 5 of the C-profile rail 2 is rounded outwards is about 50% wider than the longitudinal slit 7.
  • the base 5 of the exemplary embodiment of the invention shown in Figure 2 has a constant thickness and is as thick as the side walls 6 and the top side 4.
  • the inside and the outside of the base side 5 in FIG. 2 are rounded outwards transversely to the C-profile rail 2, as described above for FIG.
  • the base 5 also has its thickest point in FIG.
  • FIG. 1 Except for the difference that in FIG. 1 the thickness of the base 5 decreases outwards as far as the side walls 6 and in FIG. 2 only in the middle region 10, the anchor rails 1 in FIGS. 1 and 2 are of the same design.
  • the description of FIG. 1 is additionally referred to for the description of FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

Pour augmenter la capacité de charge d'un rail d'ancrage (1), l'invention propose de concevoir un côté de base (5) d'un rail profilé en C de type tube rectangulaire (2) du rail d'ancrage (1) de sorte qu'il soit arrondi à l'extérieur, et avec un point le plus épais dans le centre transversal du côté de base (5).
EP22716226.0A 2021-04-29 2022-03-18 Rail d'ancrage Pending EP4330482A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021110969.8A DE102021110969A1 (de) 2021-04-29 2021-04-29 Ankerschiene
PCT/EP2022/057124 WO2022228774A1 (fr) 2021-04-29 2022-03-18 Rail d'ancrage

Publications (1)

Publication Number Publication Date
EP4330482A1 true EP4330482A1 (fr) 2024-03-06

Family

ID=81307458

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22716226.0A Pending EP4330482A1 (fr) 2021-04-29 2022-03-18 Rail d'ancrage

Country Status (3)

Country Link
EP (1) EP4330482A1 (fr)
DE (1) DE102021110969A1 (fr)
WO (1) WO2022228774A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US909769A (en) * 1908-04-28 1909-01-12 Omer Lestly Downing Adjustable hanger.
DE102009041654A1 (de) 2009-09-17 2011-03-24 Hilti Aktiengesellschaft Eingiessbare Ankerschiene
EP3081706B1 (fr) 2015-04-18 2020-03-25 HALFEN GmbH Rails d'ancrage dans le béton
DE102020117576A1 (de) 2020-07-03 2022-01-05 Fischerwerke Gmbh & Co. Kg Ankerschiene

Also Published As

Publication number Publication date
WO2022228774A1 (fr) 2022-11-03
DE102021110969A1 (de) 2022-11-03

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