WO2007079797A1 - Dispositif de fixation - Google Patents

Dispositif de fixation Download PDF

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Publication number
WO2007079797A1
WO2007079797A1 PCT/EP2006/010059 EP2006010059W WO2007079797A1 WO 2007079797 A1 WO2007079797 A1 WO 2007079797A1 EP 2006010059 W EP2006010059 W EP 2006010059W WO 2007079797 A1 WO2007079797 A1 WO 2007079797A1
Authority
WO
WIPO (PCT)
Prior art keywords
expansion
screw
fastening arrangement
section
receiving bore
Prior art date
Application number
PCT/EP2006/010059
Other languages
German (de)
English (en)
Inventor
Frank Burkhardt
Rolf Herbstreit
Martin Linka
Wolfgang Nehl
Peter Schillinger
Original Assignee
Fischerwerke Artur Fischer Gmbh & 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 & Co. Kg filed Critical Fischerwerke Artur Fischer Gmbh & Co. Kg
Publication of WO2007079797A1 publication Critical patent/WO2007079797A1/fr

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
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/005—Nuts or like thread-engaging members into which threads are cut during screwing
    • 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
    • F16B37/041—Releasable devices
    • F16B37/043—Releasable devices with snap action

Definitions

  • the invention relates to a fastening arrangement with an expansion dowel, an expansion screw and a plate-like component with the features of claim 1.
  • attachments For attachment to plate-like components, such as metal sheets, stamped and bent parts, plastic shells, GRP components or plasterboard, a variety of fasteners are known.
  • plate-like components such as metal sheets, stamped and bent parts, plastic shells, GRP components or plasterboard
  • fasteners are known.
  • attachments such as panels
  • the attachment should be unilateral, i. be done without manual engagement behind the carrier plate, should be easy to handle, fast, inexpensive and highly resilient.
  • plastic nuts are known from the prior art for such attachments, and such a plastic nut is known from document DE 197 28 988 A1, which could also be referred to as an expansion anchor, since it is spread by screwing in an expansion screw
  • Plastic nut is inserted through a substantially square opening of the plate-like component
  • a screw is screwed through the latter into the plastic nut through the plastic nut has a receiving bore for the expansion screw in the delivery state of the plastic nut
  • the snap hooks are pressed radially outward and thus engage behind the plate-like component an insertion torque of the
  • expansion dowel and expansion screw Due to the time pressure in the assembly and the available equipment, however, there is sometimes the requirement that the processing worker a correct sitting of expansion dowel and expansion screw is characterized in that for screwing a rather high torque is necessary, and this for Completion of the attachment increases significantly. In particular, these requirements are to be achieved even with small expansion screws and small recesses in the sheet and a small screw length.
  • the known expansion dowels are also relatively long due to their expansion mechanisms, making them less suitable for plate-like components in front of narrow cavities. On the other hand, they are dimensioned so that the expansion screw can be relatively easily screwed. However, this can give the machine-actuated screwing the feeling that the screw does not work.
  • the invention is therefore based on the object to provide a fastening arrangement which has an improved torque behavior with small dimensions.
  • the expansion screw not only has to cut a thread, but they must expand the expansion dowel in the expansion radially.
  • receiving bore in the sense of an elongated recess is meant, ie in addition to a round cross-section also square, rectangular, star-shaped or the like ..
  • the cross section over the length of the receiving bore can change Widening requires a very high torque, even if the expansion dowel and expansion screw are relatively small, and the expansion dowel of the expansion screw gives very good hold, so that the insertion torque can be very high at the end of the fastening process without the expansion screw turning through Breakthrough in the plate-like component in combination with a corresponding cross section of the expansion anchor ensures a safeguard against rotation of the expansion anchor when screwing in the expansion screw.
  • the expansion region of the expansion anchor has a thick-walled, closed circumference around the receiving bore.
  • the spreading region has no groove-like incisions, for example, to form two or more expansion tongues.
  • the scope of the expansion anchor is thus substantially homogeneous in the expansion region, whereby the expansion dowel must stretch over the entire circumference when screwing in the expansion screw and thus the screwing and over-torque is very high.
  • the expansion anchor in the fastening arrangement according to the invention spreads relatively little, provides a preferred embodiment, that the cross section of the expansion region with the cross section of the opening in the plate-like component in terms of both the shape and in terms of size substantially matches.
  • Expansion dowel can thus be plugged on the one hand, on the other hand, a rear engagement of the plate-like component and thus anchoring is achieved even at a low spreading.
  • a very good configuration for use in the automotive sector has been found in a square breakthrough or a square spread area with 8 mm edge length and a receiving bore with an inner diameter of 3 mm and a screw with a core diameter of about 3.5 mm. It should be noted that the corners of the aperture or the spread can not necessarily be sharp-edged but also rounded.
  • the expansion dowel has a flange-like collar on its rear side in the direction of insertion, which prevents the expansion dowel from being inserted too far. Furthermore, the expansion anchor at an axial distance from the collar pawls, which, for example, during insertion of the
  • Figure 1 is a perspective view of an expansion anchor according to the invention.
  • FIG. 2 shows a perspective sectional view of a fastening arrangement according to the invention with the expansion dowel from FIG. 1.
  • the expansion anchor 1 shown in Figure 1 is made of nylon and has a spreading region 2 with a square cross-section.
  • the edge lengths A of this square cross section measure each about 7.85 mm, the longitudinal edges 3 are each rounded.
  • the expansion anchor 1 is centrally penetrated axially by a cylindrical
  • the insertion end 6 opposite end of the expansion anchor 1 also has a flange-like collar 7.
  • the collar 7 is penetrated by two Ausnaturalunge ⁇ 8, which are needed for forming the two pawls 9.
  • FIG. 2 shows a erfmdungssiee mounting assembly 10 with the expansion anchor 1 of Figure 1.
  • a plate-like member 11 and an expansion screw 12 is shown.
  • Expansion dowel 1 and plate-like component 11 are shown cut along a diagonal through the cross section of the expansion region 2 of the expansion anchor 1.
  • the plate-like member 11 for example, a sheet steel part, is provided with a square opening 13, which is produced for example by punching or laser cutting. With an edge length of about 8 mm length corresponds to the
  • Cross section of the opening 13 in shape and size substantially the cross section of the expansion region 2 of the expansion anchor 1.
  • the expansion anchor 1 can be inserted through the opening 13 of the plate-like member 11 in the first step of assembly until the collar 7 rests against the plate-like member 11 , Up to this concern, the pawls 9 are pressed radially in the direction of the receiving bore 4 inwardly, but then snap at investment of the collar 7 radially outward and secure the expansion dowel 1 by engaging behind the plate-like member 11 against falling out.
  • FIG. 1 illustrates the screwing in the first phase, in which initially the thread 14 engages in the region of the collar 7.
  • the receiving bore 4 has an inner diameter I of about 3 mm, while the expansion screw 12 has a core diameter K of about 3.5 mm.
  • the expansion screw 12 when penetrating into the receiving bore 4 forces a radial expansion of the expansion anchor 1 in the expansion region 2.
  • the expansion anchor 1 Since the expansion anchor 1 has a thick-walled closed circumference with a substantially uniform wall thickness W, it expands substantially uniformly over the entire circumference. By this spreading a rear engagement of the plate-like member 11 and thus the actual hold of the expansion anchor 1 is achieved.
  • the expansion screw 12 is secured at concern of the screw head 15 to the attachment not shown against spinning in the expansion dowel 1, even if the assembling worker applies a relation to the screwing significantly increased torque. He receives a clear "feedback" that the

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dowels (AREA)

Abstract

L'invention concerne un dispositif de fixation (10) comprenant une cheville à expansion (1) en plastique, une vis d'expansion (12) et un élément (11) en forme de plaque doté d'un passage (13) à angles droits. Des dispositifs de fixation de ce type sont connus, dans lesquels la cheville à expansion (1) comporte une zone d'expansion (2) de section rectangulaire et un alésage de réception (4) pour une vis d'expansion (12). Pour que la personne effectuant le montage ait une meilleure = information en retour = sur la bonne exécution du montage, le comportement de couple du dispositif de fixation (1) est amélioré en ce que le diamètre du noyau K de la vis d'expansion (12) est supérieur au diamètre interne I de l'alésage de réception (4).
PCT/EP2006/010059 2005-12-21 2006-10-19 Dispositif de fixation WO2007079797A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202005019958.3 2005-12-21
DE200520019958 DE202005019958U1 (de) 2005-12-21 2005-12-21 Befestigungsanordnung

Publications (1)

Publication Number Publication Date
WO2007079797A1 true WO2007079797A1 (fr) 2007-07-19

Family

ID=37450992

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/010059 WO2007079797A1 (fr) 2005-12-21 2006-10-19 Dispositif de fixation

Country Status (2)

Country Link
DE (1) DE202005019958U1 (fr)
WO (1) WO2007079797A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010023992A1 (de) * 2010-06-16 2011-12-22 Volkswagen Ag Anordnung zur Befestigung zumindest eines ersten Bauteils an einem zweiten Bauteil
CN106979207A (zh) * 2017-04-28 2017-07-25 苏州迈为科技股份有限公司 一种玻璃板紧固装置及紧固方法
GB2555467A (en) * 2016-10-29 2018-05-02 Stephenson Alan Securing a screw in a hole

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012208467A1 (de) * 2012-05-21 2013-11-21 Bayerische Motoren Werke Aktiengesellschaft Befestigungssatz für ein Faserverbundbauteil

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756116A (en) * 1971-09-27 1973-09-04 Fastway Fasteners Plastic nut or grommet
EP0441691A1 (fr) * 1990-02-07 1991-08-14 Comet Perfectionnements aux cages écrous pour fixations de type aveugle
EP1380758A1 (fr) * 2002-07-10 2004-01-14 Newfrey LLC Manchon pour vis
FR2861818A1 (fr) * 2003-11-04 2005-05-06 Piolax Inc Manchon pour vis

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL74360C (fr) * 1949-11-11
AU450291B2 (en) * 1968-07-31 1974-06-20 W, A. Deutsher Proprietary Limited Improved sealing and anchoring device
JPS5653124Y2 (fr) * 1977-10-08 1981-12-11
JPS6117709A (ja) * 1984-07-02 1986-01-25 株式会社ニフコ スクリユ−グロメツト
DE19652874C1 (de) * 1996-12-18 1998-04-02 United Carr Gmbh Trw Haltedübel aus Kunststoff
DE10014688A1 (de) * 2000-03-24 2001-09-27 Emhart Inc Halteelement zur Befestigung von Bauteilen an einem mit einem Durchbruch versehenen Träger

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756116A (en) * 1971-09-27 1973-09-04 Fastway Fasteners Plastic nut or grommet
EP0441691A1 (fr) * 1990-02-07 1991-08-14 Comet Perfectionnements aux cages écrous pour fixations de type aveugle
EP1380758A1 (fr) * 2002-07-10 2004-01-14 Newfrey LLC Manchon pour vis
FR2861818A1 (fr) * 2003-11-04 2005-05-06 Piolax Inc Manchon pour vis

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010023992A1 (de) * 2010-06-16 2011-12-22 Volkswagen Ag Anordnung zur Befestigung zumindest eines ersten Bauteils an einem zweiten Bauteil
GB2555467A (en) * 2016-10-29 2018-05-02 Stephenson Alan Securing a screw in a hole
CN106979207A (zh) * 2017-04-28 2017-07-25 苏州迈为科技股份有限公司 一种玻璃板紧固装置及紧固方法

Also Published As

Publication number Publication date
DE202005019958U1 (de) 2007-04-26

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