EP4158123A1 - Rail d'ancrage - Google Patents

Rail d'ancrage

Info

Publication number
EP4158123A1
EP4158123A1 EP21724581.0A EP21724581A EP4158123A1 EP 4158123 A1 EP4158123 A1 EP 4158123A1 EP 21724581 A EP21724581 A EP 21724581A EP 4158123 A1 EP4158123 A1 EP 4158123A1
Authority
EP
European Patent Office
Prior art keywords
anchor
profile rail
rail
serration
longitudinal slot
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
EP21724581.0A
Other languages
German (de)
English (en)
Inventor
Falk Wittmann
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 EP4158123A1 publication Critical patent/EP4158123A1/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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/06—Specially-shaped heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • F16B37/045—Devices for fastening nuts to surfaces, e.g. sheets, plates specially adapted for fastening in channels, e.g. sliding bolts, channel nuts

Definitions

  • the invention relates to an anchor rail with the features of the preamble of claim 1 and a method for anchoring an anchor in such an anchor rail with the features of claim 10.
  • Anchor rails are typically sunk in a floor or a wall made of concrete and are used to fasten objects, for example machines, with the aid of hammer head screws, for example.
  • "Sunk flush" means that the anchor rail is embedded in the concrete and one side of the anchor rail is flush with a surface, for example the concrete.
  • the anchor rails are cast around with the concrete on three sides.
  • the anchor rails typically have a C-profile rail, that is to say a square or rectangular tubular profile with a continuous longitudinal slot in a transverse center of one side.
  • anchor rails are made of sheet steel or generally sheet metal or are extruded, with materials other than metal also being possible.
  • the patent FR 1,544,762 discloses a hammer head screw for fastening cover elements to posts of superstructures of utility vehicles.
  • the hammer head screw has a shaft with a thread at one end and a screw head in the shape of a diamond in view at the other end.
  • the screw head can be introduced into one of the posts through a slot and brought into engagement behind in the post by turning.
  • the shaft of the known hammer head screw has on a circumference opposite to each other two axially crescent-shaped projections with axially parallel ribs on their outer surfaces, which press against the edges of the slot in the post when the screw head is rotated and thereby hold the hammer head screw in increase in a longitudinal direction of the post.
  • the object of the invention is to propose an anchor rail with an anchor with an improved hold in a longitudinal direction of a C-profile rail of the anchor rail.
  • the anchor rail according to the invention has a C-profile rail and an anchor with an anchor head, which can be brought into an engagement behind in the C-profile rail, so that an anchor shaft reaches through the longitudinal slot of the C-profile rail.
  • a C-profile rail is a tubular rail with an in particular square or rectangular cross section and a longitudinal slot in one side.
  • the anchor head can be aligned in a longitudinal direction of the C-profile rail, introduced into the C-profile rail through the longitudinal slot and brought into engagement behind the C-profile rail by turning so that it does not move out of the C-profile rail in the axial direction of the anchor shaft pull out.
  • the anchor shaft extends in the longitudinal direction, that is to say along the longitudinal axis of the anchor.
  • the longitudinal axis of the anchor is in particular identical to the longitudinal axis of the anchor shaft.
  • the anchor shaft is typically cylindrical at its end facing away from the anchor head, the longitudinal axis running centrally in the direction of the height of the cylinder, and provided with an external thread onto which a nut can be screwed onto the anchor shaft along the longitudinal axis.
  • the nut can be used to clamp an attachment against the C-profile rail, the anchor transferring the forces acting on the attachment into the C-profile rail.
  • the anchor head is preferably arranged at one end of the anchor shaft and protrudes from the anchor shaft radially to the longitudinal axis or transversely, preferably in two opposite directions.
  • the anchor head is preferably not wider, but longer than the width of the longitudinal slot of the C-profile rail, radially to the anchor shaft.
  • the anchor of the anchor channel according to the invention has a first serration tooth running in a longitudinal direction of the anchor shank, which protrudes laterally from the anchor shank, and / or a second serration tooth, on an outer side of the anchor head remote from the longitudinal axis of the anchor shank.
  • “In a longitudinal direction” means axially parallel or at an especially acute angle obliquely to an axial plane of the anchor shaft.
  • “Serrated tooth” means a tooth, a rib or the like, in particular with a triangular cross-section, which protrudes from a circumference of the anchor shaft or from the outside of the anchor head outwards, in particular radially outwards, and one in the longitudinal direction of the shaft extending cutting edge on an edge radially remote from the anchor shank, or a radially remote edge of the outer side of the Anchor head.
  • the cutting edge of the first and / or the second serration tooth can be sharp-edged, in particular an acute-angled edge, or have a rounding with a small radius or a narrow flattening.
  • the cutting edge of the first and / or the second serration tooth is designed so that it can be molded into an edge of the longitudinal slot of the C-profile rail or into the inside of the profile rail.
  • the first serration is arranged in particular at the transition between anchor shaft and anchor head and is connected to both the anchor shaft and the anchor head. The first serration is supported by the anchor head during molding.
  • the cutting edge of the first serration tooth and / or the cutting edge of the second serration tooth runs obliquely to the axial plane of the anchor shank.
  • the cutting edge of the first serration tooth and / or the cutting edge of the second serration tooth runs at an acute angle to the axial plane. If the first and the second serration tooth are inclined, the cutting edge of the first serration tooth and the cutting edge of the second serration tooth in particular enclose an angle which is identical to the axial plane.
  • the inclined course of the cutting edges ensures that both the first cutting edge of the first serration can easily be molded into the edge of the longitudinal slot of the C-profile rail and the second cutting edge of the second serration can easily be molded into the inside of the C-profile rail.
  • the special arrangement of the cutting edges also has the effect that when the anchor is brought to the C-profile rail by a rotation, the anchor head, due to the inclined cutting edges, moves "screw-like" upwards in the direction of the longitudinal slot. until it is in contact with the rail lips of the anchor rail.
  • the anchor of the anchor rail according to the invention preferably has two first serration teeth arranged on opposite circumferential points of the anchor shaft and / or two second serration teeth arranged on opposite outer sides of the anchor head, the cutting edges of which are located in the opposite edges of the longitudinal slot of the C-profile rail, or in opposite inner sides of the C.
  • - Form the profile rail if the anchor head is brought into contact from the inside against the inside of the side having the longitudinal slot, i.e. in contact with the rail lips of the C profile rail, or the anchor head engages behind in the C rail by rotating the anchor around the longitudinal axis of the anchor shaft. Profile rail is brought.
  • the cutting edges of the first and / or the second serration teeth run obliquely to the axial plane of the anchor shank and at the opposite circumferential points of the anchor shank preferably opposite to each other obliquely to the axial plane, that is, the cutting edges of the opposite first and / or second serration teeth both have either a left or a right slope, so that they are so to speak when the anchor head in the direction of the longitudinal axis of the anchor against the inside of the the side of the C-profile rail having the longitudinal slot is moved, "screw" into the opposite edges of the longitudinal slot of the C-profile rail, respectively into opposite inner sides of the C-profile rail.
  • the armature can also have more than two first first serration teeth, offset in the circumferential direction, in the manner of a toothing on the circumference of the armature shaft. These first serrations are offset from a width of the first serration to approximately twice the width of the first serration. Such first serration teeth can be present on opposite circumferential sections of the anchor shaft.
  • more than two second serration teeth are arranged on the outer side of the anchor head remote from the longitudinal axis of the anchor shaft.
  • the second serration teeth are arranged in such a way that they or their cutting edges, when the anchor is rotated around the longitudinal axis of the anchor shaft to bring the anchor head into engagement behind the C-profile rail, bump against an inside of the C-profile rail and each other Form into the C-profile rail from the inside.
  • the anchor head preferably has second serration teeth on opposite outer sides of the anchor head which abut against opposite inner sides of the C-profile rail and are molded there.
  • the anchor shank can also have the outer side or the outer sides of the anchor head which are offset from one another in the circumferential direction.
  • the cutting edges of the serration teeth offset in the circumferential direction preferably increase their radial distance from the longitudinal axis of the anchor shaft from serration tooth to serration tooth in a circumferential direction.
  • the sides of the C-profile rail, against the insides of which the second serration teeth hit when the armature rotates, adjoin the side of the C-profile rail that has the longitudinal slot.
  • the second serration teeth improve, among other things, the hold of the anchor in the longitudinal direction of the C-profile rail.
  • a further development of the invention provides that a clear inner width of the C-profile rail is reduced parallel to the width of its longitudinal slot in the direction of the side of the C-profile rail having the longitudinal slot.
  • the inside of the C-profile rail is preferably narrower than a distance of the cutting edges of opposite second serration teeth and at a distance from the side of the C-profile rail having the longitudinal slot, the C-profile rail is preferably wider on the inside than the distance between the cutting edges of opposite second serration teeth.
  • the anchor can be moved in the longitudinal direction of the C-profile rail. If the anchor head is brought closer to the inside of the C-profile rail having the longitudinal slot, the cutting edges of the second serration teeth form from the inside into the sides of the C-profile rail that adjoin the side that has the longitudinal slot.
  • a radial distance between the cutting edge of the first serration tooth from the longitudinal axis of the anchor shaft in the direction of the anchor head increases to more than half the width of the longitudinal slot of the C-profile rail.
  • the radial distance between an end of the cutting edge of the first serration tooth remote from the anchor head and the longitudinal axis is preferably less than half the width of the longitudinal slot of the C-profile rail.
  • the cutting edge of the first serration can also be formed in the edge of the longitudinal slot of the C-profile rail by rotating the anchor around the longitudinal axis of the anchor shaft, which brings the anchor head into engagement behind the C-profile rail.
  • the anchor shaft is preferably supported on an opposite edge of the longitudinal slot of the C-profile rail.
  • Figure 1 is an end view of an anchor rail according to the invention
  • FIG. 2 shows an anchor of the anchor rail from FIG. 1 in a manner compared to FIG. 1
  • FIG. 3 shows an end view of the anchor according to arrow III in FIG.
  • the anchor rail 1 according to the invention shown in FIG. 1 has a C-profile rail 2 and an anchor 3, which is shown as an individual part in FIGS. 2 and 3.
  • the C-profile rail 2 has a rectangular tubular profile with a continuous longitudinal slot 15 in one side 4.
  • a clear inner width b of the C-profile rail 2 parallel to a width B of its longitudinal slot 15 decreases in the direction of the side 4 of the C-profile rail having the longitudinal slot 15.
  • the inner width b is a distance from inner sides of two parallel sides 5 of the C-profile rail 2 adjoining the side 4 having the longitudinal slot 15.
  • the anchor 3 has a cylindrical anchor shaft 6 with a thread 7 and an anchor head 8 at one end of the anchor shaft 6.
  • the anchor shaft 6 extends along a longitudinal axis L of the anchor 3, which is also the longitudinal axis L of the anchor shaft 6.
  • a nut (not shown) can be screwed onto the thread 7 and an attachment (not shown) can be fastened to the anchor rail 1 with the nut.
  • the anchor 3 has first serration teeth 9 at opposite circumferential locations of the anchor shank 6, which protrude radially from the anchor shank 6.
  • the serration teeth 9 have triangular cross-sections in a radial plane of the anchor shaft 6 and are connected to the anchor head 8 and the anchor shaft 6.
  • first serrations 9 are arranged obliquely to the longitudinal axis L, that is, the first serrations 9 and their cutting edges 10 run obliquely to an axial plane of the anchor shaft 6.
  • the first serrations 9 and their cutting edges 10 are inclined opposite to the axial plane of the anchor shaft 6, that is, both first serration teeth 9 have - in the exemplary embodiment - a right-hand slope or, in contrast to the exemplary embodiment, a left-hand slope.
  • the anchor head 8 is approximately rectangular.
  • the anchor head 8 has two parallel longitudinal sides 11 and two transverse sides which extend from one to another of the two longitudinal sides 11 and which are referred to here as outer sides 12 of the anchor head 8 remote from the longitudinal axis L of the anchor shank 3.
  • These outer sides 12 of the anchor head 8 have diametrically opposite to the longitudinal sides 11 right-angled sections which extend over half the width of the anchor head 8 and also diametrically opposite, to the longitudinal sides 11 inclined sections which extend over another half the width of the anchor head 8 extend.
  • the sections of the outer sides 12 at right angles to the longitudinal sides 11 are each located on different halves of the width of the anchor head 8, as are the sections of the outer sides 12 which are inclined to the longitudinal sides 11.
  • the sections at right angles to the longitudinal sides 11 of the outer sides 12 of the anchor head 8 remote from the longitudinal axis L have second serration teeth 13 with associated cutters 14, which in the exemplary embodiment, like the serration teeth 9 and the associated cutters 10, also run obliquely to the axial plane of the anchor shank 6.
  • the first serration teeth 9 with the associated cutting edges 10 to the second serration teeth 13 and the associated cutting edges 14 have an identical inclination with respect to the axial plane and thus also a right-hand slope or, in contrast to the exemplary embodiment, a left-hand slope.
  • the anchor head 8 has three second serration teeth 13 on each outer side 12, which are offset from one another in the direction of the width of the anchor head 8, which can also be understood as the circumferential direction.
  • a second serration 13 is located in the middle of the width of the anchor head 8, a second serration 13 is located on a longitudinal side 11 of the anchor head 8 and a second serration 13 is located between these two second serrations 13.
  • the anchor head 8 is somewhat narrower and longer than the longitudinal slot 15 of the C-profile rail 2 of the anchor rail 1 according to the invention is wide.
  • a diameter of the anchor shaft 6 is as large as the anchor head 8 is wide, that is, the diameter of the anchor shaft 6 is slightly smaller than the longitudinal slot 15 of the C-profile rail 2 is wide.
  • the anchor head 8 is slightly shorter than a maximum inner width b of the C-profile rail 2 at a distance from the side 4 of the C-profile rail 2 having the longitudinal slot 15 and slightly longer than a minimum inner width b of the C-profile rail 2 at the side 4 of the C-profile rail 2 having the longitudinal slot 15 Side 4 of the C-profile rail 2.
  • a distance between the cutting edges 14 of the opposing second serration teeth 13 from one another is somewhat smaller than the maximum inner width b of the C-profile rail 2 and somewhat greater than the minimum inner width b of the C-profile rail 2.
  • the anchor head 8 is aligned along the C-profile rail 2 through the longitudinal slot 15 in the C-profile rail 2, so that the anchor head 8 is located in the C-profile rail 2 and the anchor shaft 6 extends through the longitudinal slot 15 of the C-profile rail 2.
  • the anchor head 8 By rotating the anchor 3 around the longitudinal axis of the anchor shaft 6 by 90 °, the anchor head 8 is positioned transversely in the C-profile rail 2 so that it engages behind the side 4 of the C-profile rail 2 having the longitudinal slot 15 from the inside and no longer in In the direction of the longitudinal axis L of the anchor shaft 6, that is to say transversely to the C-profile rail 2, it can be pulled out of the C-profile rail 2.
  • the anchor head 8 is at a distance from an inner side of the side 4 of the C-profile rail 2 having the longitudinal slot 15, that is, in the area in which the C-profile rail 2 has the maximum inner width b, the anchor 3 can be in move in a longitudinal direction of the C-profile rail 2.
  • the cutting edges 10 of the first serration teeth arrive 9 in contact with the edges of the longitudinal slot 15 of the C-profile rail 2, because its radial distance a from the longitudinal axis L of the anchor shaft 6 increases in the direction of the anchor head 8.
  • the cutting edges 10 of the first serration teeth 9 are formed in the edges of the longitudinal slot 15.
  • the cutting edges 14 of the second serration teeth 13 come from the inside against the sides 5 of the C-profile rail 2 adjoining the side 4 having the longitudinal slot 15 and form into the adjoining sides 5 because the inside width b of the C-profile rail 2 in the direction the side 4 of the C-profile rail 2 having the longitudinal slot decreases.
  • the armature 3 is held in the longitudinal direction of the C-profile rail 2.
  • the bevel of the first serration teeth 9 and their cutting edges 10 to the longitudinal axis L or to the axial plane of the anchor shank 6, that is, a direction of inclination of the cutting edges 10, is selected so that when the anchor 3 is acted upon in the direction of the longitudinal axis L so that the Anchor head 8 moves in the direction of the inside of the longitudinal slot 15 having side 4 of the C-profile rail 2, a torque about the longitudinal axis L of the anchor shaft 6 acts on the anchor 3, whereby the cutting edges 14 of the second serrations 13 against the inside of the to the Longitudinal slot having side 4 adjoining sides 5 of the C-profile rail 2 are pressed.

Landscapes

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

Abstract

L'invention propose un dispositif d'ancrage (3) au niveau d'une transition d'un arbre d'ancrage (6) à une tête d'ancrage (8), et de côtés extérieurs mutuellement distants de la tête d'ancrage (8), avec des dents à encoche oblique (9, 13) qui pénètrent dans des bords des deux côtés d'une fente longitudinale d'un rail profilé en C (2) et dans des côtés internes opposés du rail profilé en C (2) et amènent ainsi l'ancrage (3) à être retenu dans une direction Longitudinale du rail profilé en C (2).
EP21724581.0A 2020-05-26 2021-05-03 Rail d'ancrage Pending EP4158123A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102020113984 2020-05-26
DE102020124206.9A DE102020124206A1 (de) 2020-05-26 2020-09-17 Ankerschiene
PCT/EP2021/061500 WO2021239392A1 (fr) 2020-05-26 2021-05-03 Rail d'ancrage

Publications (1)

Publication Number Publication Date
EP4158123A1 true EP4158123A1 (fr) 2023-04-05

Family

ID=78509088

Family Applications (2)

Application Number Title Priority Date Filing Date
EP21724220.5A Withdrawn EP4158122A1 (fr) 2020-05-26 2021-05-03 Rail d'ancrage
EP21724581.0A Pending EP4158123A1 (fr) 2020-05-26 2021-05-03 Rail d'ancrage

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP21724220.5A Withdrawn EP4158122A1 (fr) 2020-05-26 2021-05-03 Rail d'ancrage

Country Status (4)

Country Link
EP (2) EP4158122A1 (fr)
CN (2) CN115605654A (fr)
DE (2) DE102020124206A1 (fr)
WO (2) WO2021239391A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1181378A (fr) * 1957-08-21 1959-06-15 Ecrou utilisable pour la fixation de cornières
FR1544762A (fr) 1967-09-25 1968-11-08 Erbsloeh Julius & August Dispositif d'assemblage d'éléments d'habillage s'étendant suivant les dimensions d'une surface
CA1181921A (fr) * 1982-06-11 1985-02-05 Mortimer Brown Cale d'immobilisation en sens axial
DE19718230B4 (de) * 1996-07-17 2005-07-21 Halfen Gmbh & Co. Kommanditgesellschaft Befestigungselement zur Sicherung einer Kopfschraube in einer Ankerschiene
DE102009041654A1 (de) * 2009-09-17 2011-03-24 Hilti Aktiengesellschaft Eingiessbare Ankerschiene

Also Published As

Publication number Publication date
WO2021239392A1 (fr) 2021-12-02
CN115605654A (zh) 2023-01-13
DE102020124205A1 (de) 2021-12-02
EP4158122A1 (fr) 2023-04-05
DE102020124206A1 (de) 2021-12-02
WO2021239391A1 (fr) 2021-12-02
CN115552082A (zh) 2022-12-30

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