EP1896732A1 - Cheville a expansion - Google Patents

Cheville a expansion

Info

Publication number
EP1896732A1
EP1896732A1 EP06742723A EP06742723A EP1896732A1 EP 1896732 A1 EP1896732 A1 EP 1896732A1 EP 06742723 A EP06742723 A EP 06742723A EP 06742723 A EP06742723 A EP 06742723A EP 1896732 A1 EP1896732 A1 EP 1896732A1
Authority
EP
European Patent Office
Prior art keywords
expansion
dowel
sleeve
dowel sleeve
spreading
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.)
Withdrawn
Application number
EP06742723A
Other languages
German (de)
English (en)
Inventor
Aaron Daly
Rainer Fischer
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 Artur Fischer 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 Artur Fischer GmbH and Co KG filed Critical Fischerwerke Artur Fischer GmbH and Co KG
Publication of EP1896732A1 publication Critical patent/EP1896732A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/12—Separate metal or non-separate or non-metal dowel sleeves fastened by inserting the screw, nail or the like
    • F16B13/124—Separate metal or non-separate or non-metal dowel sleeves fastened by inserting the screw, nail or the like fastened by inserting a threaded element, e.g. screw or bolt
    • 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
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/12—Separate metal or non-separate or non-metal dowel sleeves fastened by inserting the screw, nail or the like
    • F16B13/128—Separate metal or non-separate or non-metal dowel sleeves fastened by inserting the screw, nail or the like with extending protrusions, e.g. discs, segments, ridges, fingers or tongues

Definitions

  • the invention relates to an expansion anchor with the features of the preamble of claim 1.
  • expansion dowels are generally known in particular as plastic expansion dowel. They usually have a dowel sleeve for insertion of an expansion screw, a Sp Rudschraubnagels or the like. On. The dowel sleeve is divided by longitudinally extending slots in a plurality of radially expandable expansion tabs. to
  • Anchoring the expansion anchor is first introduced into a borehole and then screwed or struck the expansion screw or Sp Rudschraubnagel in the dowel sleeve. As a result, the expansion tabs are spread radially outward.
  • the dowel sleeve has spreading elements which are tiltable and inclined towards the insertion end of the dowel sleeve.
  • the tilting axis of the expansion elements should not be arranged in the longitudinal direction of the dowel sleeve, but substantially tangentially thereto.
  • substantially tangential is likewise meant an arrangement along a helix which is arranged on an imaginary cylindrical surface parallel to the longitudinal axis of the anchor a pure tilting movement also meant a radial bending of the spreading elements.
  • the spreading elements have a turned into the interior of the dowel sleeve
  • the inwardly facing ends can be made helical. Should a tensile load be applied to the expansion screw after assembly, so the spreading elements dig in the thread of the inserted expansion screw and would have to release this, tilt back so far that they are inclined against the insertion end of the dowel sleeve. For this purpose, however, the outwardly facing end of the spreading would have to move radially outward, which is limited by the borehole diameter. Thus, at the latest when the expansion screw is acted upon with a tensile load, the expansion of the anchor occurs. Without departing from the spirit of the invention, the spreading need not necessarily engage with their turned into the interior of the dowel sleeve ends in the thread, but they can also enter into a surface frictional engagement with this.
  • the spreading elements have a substantially wedge-shaped
  • the spreading elements each have an outwardly facing end, which protrudes from the dowel sleeve.
  • the expansion elements are therefore not only inwardly disposed projections on the dowel sleeve, but they continue to the outside. This ensures that the individual spreading elements can unfold their spreading independently each independently. Since the spreading itself and not the dowel sleeve supported on the borehole inner wall, not the expansion sleeve must be deformed to the development of anchoring forces as a whole. This is further favored by the fact that preferably the expansion sleeve in the region of the spreading over the circumference is not closed. The expansion sleeve itself therefore has less the function of the spreading but rather the function of Storage of the spreading elements.
  • the spreading elements are preferably connected to the dowel sleeve in the manner of film hinges.
  • Film hinge is understood to mean a connection of the spreading elements to the dowel sleeve, in which, compared to the other wall thickness of the dowel sleeve, a targeted weakening of the wall thickness in the region of the transition between
  • Dowel sleeve and expansion element is formed.
  • the spreading elements can be designed both pin-like and flat.
  • the spreading elements are, for example, designed as completely closed over the circumference slats.
  • the inherent rigidity of such a blade produced thereby counteracts the tiltability of the expansion element.
  • Spreading elements are each formed over a maximum of half the circumference of the dowel sleeve.
  • Figure 1 shows a first embodiment in a sectional view
  • Figure 2 shows a second embodiment with expansion screw in one
  • Figure 3 is a perspective view of the same embodiment.
  • the expansion dowel 1 shown in Figure 1 has a dowel sleeve 2 for insertion of an expansion screw, not shown.
  • the insertion end 3 of the anchor sleeve 2 is closed, while the opposite end for insertion of the expansion screw is open.
  • This lamellar expansion elements 4 are inclined to the insertion end 3 of the anchor sleeve 2. Due to their narrow connection to the cylindrical part of the dowel sleeve 2, they can tilt relatively easily or be bent to the insertion end 3 out.
  • the embodiment is preferably made of plastic, preferably polyamide, manufactured, but in principle, a production of metal is possible.
  • the tilting axis K by which the spreading elements 4 can tilt, is arranged tangentially to the dowel axis D, ie it runs perpendicular to the plane of the drawing.
  • a borehole with a diameter is initially created in the selected substrate, which corresponds approximately to the outer diameter of the anchor sleeve 2.
  • the expansion anchor 1 is introduced.
  • the actual attachment takes place by manual insertion of an expansion screw, not shown, whose outer diameter is smaller than the inner diameter d a described by the cylindrical part of the dowel sleeve 2 and larger than the inner diameter di described by the expansion elements 4 di.
  • the spreading elements 4 are tilted about the tilting axis K, but tilt due to their elasticity in each case after exceeding a
  • Figure 2 shows an alternative embodiment of an inventive
  • Expansion dowel 1a In the expansion dowel 1 a an expansion screw 6 is inserted in the form of a threaded rod. Instead of a threaded rod could equally alike a non-metric screw, for example. A wood screw can be used.
  • This expansion anchor 1a in turn has a dowel sleeve 2a with tilting elements 4a which can be tilted about a tilting axis K.
  • the spreading elements 4 have a wedge-shaped cross section and are each connected by a narrow web 7 film-hinge-like with the cylindrical part of the dowel sleeve 2a.
  • This wedge-like cross section has the advantage that the ends of the expansion elements 4a which are turned into the interior of the dowel sleeve can also engage in a relatively fine thread 8 of an expansion screw 6. On the other hand, allow the relatively broad, outwardly facing ends 9 of the spreading elements 4a, which protrude from the dowel sleeve 2a, a relatively large-scale investment in the borehole.
  • the spreading elements 4 a are connected to the webs 7 over a relatively small cross-section.
  • the spreading 4a which are each formed over about a quarter of the circumference of the dowel sleeve 2a, can thus relatively easily tilt around the tilting axis K. Since not as in the first embodiment, a whole portion of the cylindrical portion of the dowel sleeve 2 is formed radially outward, but only the spreading 4a are tilted significantly better holding properties can be achieved by the second embodiment.
  • the embodiment shown in Figures 2 and 3 each has three opposing blocks 10 of spreading elements 4a, which are separated by stiffening ribs 11 from each other. Furthermore, the embodiment has an anti-rotation rib 12, which prevents co-rotation of the dowel sleeve 2 when unscrewing the expansion screw 6, and a collar 13 which prevents the
  • Expansion dowel 1a is inserted too far into the borehole during insertion of the expansion screw 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dowels (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

Cheville à expansion (1a) qui comporte une douille (2a) destinée à l'introduction d'une vis d'expansion (6). L'objet de la présente invention est la mise au point d'une cheville à expansion de ce type, qui peut être introduite sans outil. A cet effet, la douille (2a) de cheville possède des éléments d'expansion (4a) qui peuvent être amenés à basculer autour d'un axe de basculement (K) essentiellement tangentiel par rapport à l'axe (D) de la cheville et qui sont inclinés vers l'extrémité d'introduction (3) de la douille (2a) de cheville.
EP06742723A 2005-06-29 2006-04-28 Cheville a expansion Withdrawn EP1896732A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510030174 DE102005030174A1 (de) 2005-06-29 2005-06-29 Spreizdübel
PCT/EP2006/003953 WO2007000205A1 (fr) 2005-06-29 2006-04-28 Cheville a expansion

Publications (1)

Publication Number Publication Date
EP1896732A1 true EP1896732A1 (fr) 2008-03-12

Family

ID=36678594

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06742723A Withdrawn EP1896732A1 (fr) 2005-06-29 2006-04-28 Cheville a expansion

Country Status (3)

Country Link
EP (1) EP1896732A1 (fr)
DE (1) DE102005030174A1 (fr)
WO (1) WO2007000205A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3364053B1 (fr) 2017-02-15 2020-08-12 fischerwerke GmbH & Co. KG Cheville à expansion
TWD205104S (zh) * 2019-11-20 2020-06-11 金全益股份有限公司 膨脹螺絲
TWI705199B (zh) * 2019-11-29 2020-09-21 金全益股份有限公司 膨脹螺絲包裝組合
DE102022103960A1 (de) 2022-02-18 2023-08-24 Iwanum UG (haftungsbeschränkt) Dübel als Befestigungselement aus Kunststoff in Ausführung eines Spreizdübels zur universellen Anwendung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3036627A1 (de) * 1980-09-29 1982-05-19 Alfons 6541 Biebern Rockenbach Metall- und kunststoffduebel
DE3317937A1 (de) * 1982-11-10 1984-05-10 Hilti Ag, Schaan Huelsenfoermiger spreizduebel
DE9110499U1 (de) * 1991-08-27 1991-10-31 Ejot Adolf Böhl GmbH & Co KG, 5920 Bad Berleburg Dübel
DE19607516C2 (de) * 1996-02-29 2001-02-08 Steinhauer Gmbh Befestigungselement
DE19824594C2 (de) * 1998-06-02 2001-11-29 Steinhauer Gmbh Befestigungselement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007000205A1 *

Also Published As

Publication number Publication date
DE102005030174A1 (de) 2007-01-04
WO2007000205A1 (fr) 2007-01-04

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Owner name: FISCHERWERKE GMBH & CO. KG

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Owner name: FISCHERWERKE GMBH & CO. KG

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