WO2009030480A2 - Dispositif de fixation - Google Patents

Dispositif de fixation Download PDF

Info

Publication number
WO2009030480A2
WO2009030480A2 PCT/EP2008/007242 EP2008007242W WO2009030480A2 WO 2009030480 A2 WO2009030480 A2 WO 2009030480A2 EP 2008007242 W EP2008007242 W EP 2008007242W WO 2009030480 A2 WO2009030480 A2 WO 2009030480A2
Authority
WO
WIPO (PCT)
Prior art keywords
fastener
sleeve
support sleeve
collar
damping
Prior art date
Application number
PCT/EP2008/007242
Other languages
German (de)
English (en)
Other versions
WO2009030480A3 (fr
Inventor
Michael Stumpf
Original Assignee
Bölhoff Verbindungstechnik Gmbh
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 Bölhoff Verbindungstechnik Gmbh filed Critical Bölhoff Verbindungstechnik Gmbh
Publication of WO2009030480A2 publication Critical patent/WO2009030480A2/fr
Publication of WO2009030480A3 publication Critical patent/WO2009030480A3/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
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
    • F16B5/0241—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread with the possibility for the connection to absorb deformation, e.g. thermal or vibrational
    • 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
    • F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
    • F16B41/002—Measures against loss of bolts, nuts or pins

Definitions

  • the present invention relates to a fastener with damping function for connecting a first and a second component and a method for its production.
  • EP 1 231 390 B1 describes a screw with screw head, screw shank and threaded area on which a support sleeve is arranged. This support sleeve is supported directly on the screw head, so that vibrations between the component and the screw are transmitted undamped. In order to fix the support sleeve captive on the screw shaft, an impression is introduced whose inner diameter is smaller than the outer diameter of the threaded portion.
  • the support sleeve is fastened to the screw shank via a damping element.
  • the damping element passes through openings in the support sleeve and thereby narrows the inner diameter of the support sleeve.
  • the captive properties of the support sleeve are no longer guaranteed, which leads to disadvantages.
  • DE 195 10 349 C2 and DE 199 24 502 C2 describe fasteners which have a disk as a captive. The disc is located between the screw head and threaded portion due to their smaller inner diameter compared to the outer diameter of the threaded portion.
  • the disc is connected to the support sleeve via an elastomeric element, so that the support sleeve is also held captive on the screw.
  • the elastomeric element extends close to the disk to be fastened, so that it has only a limited damping and allows tilting of the support sleeve in a component opening.
  • vibrations of a fastened component can be transmitted directly to the support sleeve.
  • the fastener with damping function for connecting a first and a second component has the following features: a screw whose screw shaft between the screw head and threaded portion has a smaller diameter than the threaded portion, so that a disc is captively fastened to the screw, a support sleeve, with the fastener on the second component can be supported, and a damping sleeve, in which the support sleeve is received and which comprises a projecting beyond the support sleeve collar to which the disc is attached.
  • a fastener is provided as a cohesive unit of screw, washer, support sleeve and damping sleeve. This allows a simplified insertion of the fastener in a few steps.
  • the individual components of the fastener are reliable interconnected so that they provide adequate support and damping functions despite effective installation.
  • the collar of the damping sleeve comprises a snap connection, in which the disc can be latched and thus fastened.
  • This snap connection is realized, for example, with the aid of an undercut disposed within the collar, which extends circumferentially on the inside of the collar. According to other alternatives, it is also conceivable to attach the disc in other ways to the support sleeve.
  • the damping sleeve In order to support a permanent positioning of the fastener in the first component, the damping sleeve has an anchoring profiling on its outer side. Similarly, it is preferable to provide the support sleeve on its outer side with a holding profile, which supports holding the support sleeve within the damping sleeve. To reduce the weight of the support sleeve, at least two regions of different inner diameters are preferably provided. In this way, one bears, for example, the weight requirements in the automotive industry bill, which should lead to a reduction in fuel consumption.
  • the following steps are used: providing a screw with screw shank and threaded portion to which a disc is captively mounted, inserting a support sleeve in a damping sleeve or sheathing the support sleeve with plastic or a rubber material, which forms the damping sleeve, said Each of the damping sleeve comprises a collar for fastening the disk, and fastening the disk in the collar of the damping sleeve, so that the fastener is formed as a coherent unit of screw, washer, support sleeve and damping sleeve.
  • FIG. 1 is a sectional view of a preferred embodiment of the fastener in the installed state
  • FIG. 1 is a perspective sectional view according to the embodiment of Fig. 1,
  • FIG. 3 is an exploded view of the embodiment of FIG. 1,
  • FIG. 4A is a perspective view of a preferred embodiment of the damping sleeve
  • FIG. 4B is a sectional view of the damping sleeve according to FIG. 4A.
  • FIG. 5A is a perspective view of a preferred embodiment of the support sleeve
  • FIG. 5B is a sectional view of the support sleeve of FIG. 5A
  • FIG. 6 is a sectional view of a preferred embodiment of the damping sleeve with support sleeve
  • Fig. 7 is a perspective view of a preferred embodiment of the screw with disc and the first component and
  • Fig. 8 is a flowchart illustrating a preferred embodiment of the manufacturing method of the fastener.
  • the present invention provides a fastener 1 and a method of making the same, for example by attaching housing parts or panels to automobiles.
  • the fastener 1 is provided as a contiguous unit, whereby a simplified assembly of first 10 and second component 20 is achieved.
  • the fastener 1 realizes a support function via the later-described support sleeve 50 and a damping function via a damping sleeve 60 surrounding the support sleeve 50.
  • FIG. 1 A preferred embodiment of the fastener 1 is shown in FIG. 1 as a sectional view, in FIG. 2 as a perspective sectional view and in FIG. 3 as an exploded view.
  • the fastener 1 connects the first component 10, for example a plastic panel, to the second component 20, for example a bearing part of a vehicle body.
  • a bore 22 is provided with thread in the second component 20.
  • the screw 30 also includes a screw head 36 and a screw shank 32.
  • the screw head 36 is provided with a standard force engaging feature such as a hexagonal head or a cross or slot structure
  • the cylindrical portion of the screw shaft 32 serves to receive a preferably hardened disc 40 (see below).
  • the threaded portion 34 connects.
  • the screw head 36 facing away from the end of the threaded portion 34 is preferably equipped with a chamfered cylindrical portion 38 as Einfädel plausible.
  • the screw 30 is made of a standard material.
  • the disc 40 is first threaded, for example, on a screw blank without threaded portion. Subsequently, the threaded portion 34 is produced by rolling. This results in that the outer diameter of the threaded portion 34 is greater than the inner diameter of the disc 40 and the outer diameter of the screw shaft 32. In this way, the disc 40 is captively connected to the screw 30.
  • the fastener 1 also includes a support sleeve 50 which is surrounded by a damping sleeve 60. Within the support sleeve 50, the screw 30 is arranged. In the installed state of the fastener 1 support sleeve 50 and damping sleeve 60 are received in a through hole 12 of the first component 10.
  • the support sleeve 50 is shown according to a preferred embodiment in Figures 5A, B. It serves as a pressure or force limiter with regard to the first component 10.
  • a mechanical overload of the first component 20 is prevented.
  • clamping forces on the first component 10 and screw 30 are avoided, which would result in a relaxation of the plastic in the region of the through-hole 12 in the case of a first component 10 made of plastic. Due to the relaxation tolerances would arise, which would cause a loosening or rattling of the first component 10 on the screw 30.
  • the support sleeve 50 thus absorbs most of the force flow between the screw 30 and the second component 20.
  • the support sleeve 50 is made of a durable material that resists buckling and ensures sufficient stability for the fastener 1.
  • a preferred embodiment is to produce the support sleeve 50 made of steel, for example as a cold impact element.
  • two areas 54, 56 of different inner diameters are preferably provided. Despite the increased inner diameter in the region 56, the region 54 provides sufficient guidance of the screw 30 within the support sleeve 50.
  • the through hole 58 in the support sleeve 50 according to an alternative to DIN EN 20273 executed.
  • the support sleeve 50 is also to be dimensioned so that a buckling or buckling of the support sleeve 50 is avoided. In this way unwanted radial stresses are kept away from the surrounding material.
  • the position of the region 54 with a smaller passage cross-section and the region 56 with a larger passage cross-section is based on the permissible surface pressures of the partners to be connected. The aim is to avoid marks on the support sleeve 50. Therefore, the region 56 is disposed on the side of the preferably hardened disc 40.
  • the region 56 is preferably applied to low strength components, such as. B Engine blocks, body parts, oil sumps made of light metals or of plastic components.
  • the retaining profile 52 supports the support of the support sleeve 50 within the damping sleeve 60, which is described in more detail below.
  • the retaining profiling 52 consists, for example, of the illustrated longitudinal edge, which according to one embodiment is designed according to DIN 82RAA 0.6. It is also another form of a retaining profiling 52 conceivable that acts as a rotational security and / or prevents loosening of the support sleeve 50 from the damping sleeve 60.
  • the axial end faces of the support sleeve 50 are formed as contact surfaces, which are supported on the second component 20 and the disc 40.
  • the contact surfaces flat, with a shoulder or in other Form rer design to optimally ensure the support of the support sleeve 50.
  • the damping sleeve 60 surrounds the support sleeve 50.
  • the damping sleeve 60 is made of a damping material that can compensate for mechanical component vibrations. Preferred materials are rubber materials or generally plastics, such as thermoplastic elastomers, which are suitably processed by vulcanization or by spraying.
  • the support sleeve 50 is sheathed with the damping sleeve 60 or the support sleeve 50 is pressed or glued into the damping sleeve 60 or secured therein in any other suitable manner. In this manner, the damping sleeve 60 preferably completely surrounds the support sleeve 50. Within this arrangement, axial displacement of the support sleeve 50 and the damping sleeve 60 with respect to each other is prevented by the retaining profile 52 (see above).
  • the damping sleeve 60 is shown in more detail in Figures 4A, B.
  • the damping sleeve 60 comprises an anchoring profiling 66 on its outside.
  • the anchoring profiling 66 is realized in the form of cams 66 extending in the axial direction.
  • the anchoring profiling 66 may generally have any shape that supports elastic anchoring of the damping sleeve 60 and thus of the fastener 1 in the through hole 12 of the first component 10.
  • circumferential rings on the outside of the damping sleeve 60 as anchoring profiling 66 are suitable.
  • the damping sleeve 60 preferably comprises a chamfer on the element edge, which facilitates the mounting of the fastener 1.
  • the screw head 36 facing the end of the damping sleeve 60 has a collar 62.
  • the collar 62 is preferably cylindrical and has a larger inner diameter than the outer diameter of the disc 40 and the remaining inner diameter of the damping sleeve 60. Within the collar 62, the disc 40 is received and held. The hold of the disc 40 in the collar 62 is sufficiently large so that the screw 30 can not fall out of the fastener 1 by its own weight.
  • the fastener 1 is provided as a coherent unit.
  • the disc 40 is held by an undercut 64 on the collar 62.
  • the disk 40 is pressed into the collar 62 and snaps behind the undercut 64.
  • the undercut 64 is, for example, fully formed as a lip or in the form of individual detents (not shown) on the inside of the collar 62.
  • the collar 62 has no protruding edge with undercut 64. Instead, at least one axial projection extends from the collar 62, which engages in a corresponding opening within the disc 40 and locked there. Another alternative is to gluing or gluing the disc 40 on or in the collar 62. In order to ensure this functionality, all connections between the damping sleeve 60 and the disc 40 are therefore conceivable which make it possible to provide the fastener 1 as a unit.
  • the fastener 1 with damping function for fixing a thin-walled first component 10 for example, an attachment 10 with a Component thickness of 1 to 4 mm, to use.
  • Such components 10 include sheets and attachments of non-reinforced or reinforced plastic, such as CFRP and SMC, to name just a few alternatives.
  • the fastener 1 is used with adapted dimensions and alternative shape compared to the embodiments described above.
  • the length of damping sleeve 60 and support sleeve 50 is reduced and thereby adapted to the thickness of the component 10.
  • the anchoring profiling 66 on the radially outer side of the damping sleeve 60 is more pronounced in comparison to the above embodiments in order to hold the thin-walled component 10 between anchoring profiling 66 and collar 62.
  • the anchoring profiling 66 extends to the end of the damping sleeve 60, which faces away from the collar 62, and is supported on the second component 20.
  • the radial outward extension of the anchoring profiling 66 is increased and / or the number of circumferentially disposed profiled webs 66 is increased.
  • the anchoring profiling 66 is formed peripherally circumferentially, while its outer diameter and / or its axial extent is smaller, equal to or greater than the outer diameter and / or the axial extent of the collar 62 is (are). Based on this shaping of the outer profiling 66, the first component 10 is held in a form-fitting manner between collar 62 and outer profiling 66.
  • the side facing away from the first component 10 of the outer profiling 66 is supported on the second component 20.
  • the outer profiling 66 plate-like, it is similar to a flange or collar on the second component 20 and forms the mounting surface of the support sleeve 60. In order to adjust the damping properties of the damping sleeve 60 and improve the plate-like outer profile 66 in the area of the mounting surface as a solid material or formed with lamellae.
  • the outer diameter of the outer profile 66 is selected as a function of the SHORE hardnesses of the elastomer of the damping sleeve 60 used. Furthermore, outer diameters of the outer profile 66 and / or SHORE Hardness of the elastomer used of the damping sleeve 60 set such that the first component 10 with the desired effort of the damping sleeve 60 is removable, ie required Ausknöpf mechanism be achieved.
  • step A the screw 30 is manufactured with the washer 40 captively attached thereto.
  • step B the support sleeve 50 is inserted into the damping sleeve 60 or pressed or glued.
  • step C the support sleeve 50 is encased in plastic or a rubber material in step C.
  • the sheathing can be realized on the one hand by injection molding of a thermoplastic elastomer or on the other hand by vulcanization with a rubber material.
  • step D the disc 40 is fixed in or on the collar 62.
  • the fastening takes place by means of snapping, gluing or the like.
  • the support sleeve 50 is made with at least two portions 54, 56 of different inner diameters to reduce the weight of the support sleeve in this way.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dowels (AREA)
  • Vibration Prevention Devices (AREA)
  • Connection Of Plates (AREA)
  • Bolts, Nuts, And Washers (AREA)

Abstract

La présente invention concerne, d'une part un dispositif de fixation (1) doté d'une fonction d'amortissement, permettant de relier entre eux deux éléments de construction (10, 20), et d'autre part un procédé de fabrication correspondant. Ce dispositif de fixation (1) se distingue en ce qu'il est constitué d'une vis (30), d'un manchon d'appui (50), et d'un manchon amortisseur (60). La vis (30) constituée d'une tige (32), d'une tête (36), et d'un filetage (34), est pourvue d'une rondelle plate (40) montée prisonnière. Le manchon d'appui (50) assure au dispositif de fixation (1) un appui sur le second élément de construction (20). Le manchon amortisseur (60) dans lequel est reçu le manchon d'appui (50) enserre un collier (62) qui déborde au-dessus du manchon d'appui, et qui est solidaire de la rondelle plate (40).
PCT/EP2008/007242 2007-09-04 2008-09-04 Dispositif de fixation WO2009030480A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710041949 DE102007041949B3 (de) 2007-09-04 2007-09-04 Befestiger
DE102007041949.1 2007-09-04

Publications (2)

Publication Number Publication Date
WO2009030480A2 true WO2009030480A2 (fr) 2009-03-12
WO2009030480A3 WO2009030480A3 (fr) 2009-05-22

Family

ID=40111046

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/007242 WO2009030480A2 (fr) 2007-09-04 2008-09-04 Dispositif de fixation

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DE (1) DE102007041949B3 (fr)
WO (1) WO2009030480A2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3033181A1 (fr) * 2015-02-27 2016-09-02 Peugeot Citroen Automobiles Sa Insert de pre maintien d’un support de composant sur la structure d’un vehicule
CN107429718A (zh) * 2015-03-10 2017-12-01 利西汽车速度公司 用于螺纹装配件的抗蠕变装置，包括第一元件，尤其为板件的形式，由耐夹紧力强度不足的材料制成
CN108386427A (zh) * 2017-02-02 2018-08-10 福特全球技术公司 用于接合部件的插入件
US10132342B2 (en) * 2015-01-22 2018-11-20 Nissan Motor Co., Ltd. Fastening structure for carbon fiber-reinforced resin material
WO2019197131A1 (fr) * 2018-04-11 2019-10-17 Böllhoff Verbindungstechnik GmbH Douille extérieure d'un raccord sans filetage femelle doté d'une fonction d'amortissement, raccord muni d'une douille extérieure, ainsi que procédé associé de raccordement et de fabrication
CN112128185A (zh) * 2019-06-24 2020-12-25 宾科精密部件(中国)有限公司 一种紧固件

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011102725U1 (de) * 2011-07-01 2012-10-25 Mahle International Gmbh Führungs- und Fixierbuchse
DE102016112014A1 (de) 2016-06-30 2018-01-04 Böllhoff Verbindungstechnik GmbH Befestiger mit Dämpfungsfunktion

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4131779A1 (de) * 1991-09-24 1993-03-25 Siemens Ag Schraubbefestigung fuer abdeckungen oder frontplatten von geraeten oder systemen
DE19510349A1 (de) * 1995-03-22 1996-08-08 Gloeckler Dichtsysteme Guenter Schallentkoppelndes Verbindungselement
EP0751305A1 (fr) * 1995-06-26 1997-01-02 Valeo Systemes D'essuyage Dispositif pour la fixation d'un élément appartenant à un mécanisme d'essuie-glace sur la caisse d'un véhicule automobile
EP1245842A2 (fr) * 1995-07-14 2002-10-02 ITW BEFESTIGUNGSSYSTEME GmbH Dispositif de fixation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4732519A (en) * 1986-12-24 1988-03-22 Illinois Tool Works Inc. Fastener assembly with axial play
DE59503990D1 (de) * 1994-02-01 1998-11-26 Bergner Richard Gmbh Co Montageeinheit aus einem montageteil, einem fixierteil und einer hülse als verliersicherung sowie herstellungsverfahren der montageeinheit
DE19924502C2 (de) * 1999-05-28 2003-08-07 Elringklinger Ag Schraube mit Hülse
DE10063812B4 (de) * 2000-11-15 2005-08-18 Richard Bergner Verbindungstechnik Gmbh & Co. Kg Verbindungselement
DE10106093C2 (de) * 2001-02-08 2003-03-20 Kellermann Fa Rudolf Verbindungselement mit einer Schraube und einem daran unverlierbar angeordneten Stützelement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4131779A1 (de) * 1991-09-24 1993-03-25 Siemens Ag Schraubbefestigung fuer abdeckungen oder frontplatten von geraeten oder systemen
DE19510349A1 (de) * 1995-03-22 1996-08-08 Gloeckler Dichtsysteme Guenter Schallentkoppelndes Verbindungselement
EP0751305A1 (fr) * 1995-06-26 1997-01-02 Valeo Systemes D'essuyage Dispositif pour la fixation d'un élément appartenant à un mécanisme d'essuie-glace sur la caisse d'un véhicule automobile
EP1245842A2 (fr) * 1995-07-14 2002-10-02 ITW BEFESTIGUNGSSYSTEME GmbH Dispositif de fixation

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10132342B2 (en) * 2015-01-22 2018-11-20 Nissan Motor Co., Ltd. Fastening structure for carbon fiber-reinforced resin material
FR3033181A1 (fr) * 2015-02-27 2016-09-02 Peugeot Citroen Automobiles Sa Insert de pre maintien d’un support de composant sur la structure d’un vehicule
CN107429718A (zh) * 2015-03-10 2017-12-01 利西汽车速度公司 用于螺纹装配件的抗蠕变装置，包括第一元件，尤其为板件的形式，由耐夹紧力强度不足的材料制成
CN108386427A (zh) * 2017-02-02 2018-08-10 福特全球技术公司 用于接合部件的插入件
CN108386427B (zh) * 2017-02-02 2022-07-05 福特全球技术公司 用于接合部件的插入件
WO2019197131A1 (fr) * 2018-04-11 2019-10-17 Böllhoff Verbindungstechnik GmbH Douille extérieure d'un raccord sans filetage femelle doté d'une fonction d'amortissement, raccord muni d'une douille extérieure, ainsi que procédé associé de raccordement et de fabrication
CN112041569A (zh) * 2018-04-11 2020-12-04 伯尔霍夫连接技术有限公司 无内螺纹且具有阻尼功能的连接元件的外套筒、包括外套筒的连接元件、以及相应的连接和制造方法
US20210071695A1 (en) * 2018-04-11 2021-03-11 Böllhoff Verbindungstechnik GmbH Outer sleeve of a connection element without a female thread and having a damping function, connection element comprising an outer sleeve, and corresponding connection and manufacturing method
CN112128185A (zh) * 2019-06-24 2020-12-25 宾科精密部件(中国)有限公司 一种紧固件

Also Published As

Publication number Publication date
WO2009030480A3 (fr) 2009-05-22
DE102007041949B3 (de) 2009-06-10

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