WO2013041271A1 - Élément de fixation pour une partie de protection et partie de protection dotée d'un élément de fixation - Google Patents

Élément de fixation pour une partie de protection et partie de protection dotée d'un élément de fixation Download PDF

Info

Publication number
WO2013041271A1
WO2013041271A1 PCT/EP2012/064451 EP2012064451W WO2013041271A1 WO 2013041271 A1 WO2013041271 A1 WO 2013041271A1 EP 2012064451 W EP2012064451 W EP 2012064451W WO 2013041271 A1 WO2013041271 A1 WO 2013041271A1
Authority
WO
WIPO (PCT)
Prior art keywords
projection
fastening element
opening
fastener
shielding part
Prior art date
Application number
PCT/EP2012/064451
Other languages
German (de)
English (en)
Inventor
Ralf Krus
Original Assignee
Federal-Mogul Sealing Systems 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 Federal-Mogul Sealing Systems Gmbh filed Critical Federal-Mogul Sealing Systems Gmbh
Priority to EP12740570.2A priority Critical patent/EP2758676A1/fr
Publication of WO2013041271A1 publication Critical patent/WO2013041271A1/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
    • F16B17/00—Connecting constructional elements or machine parts by a part of or on one member entering a hole in the other and involving plastic deformation
    • F16B17/008—Connecting constructional elements or machine parts by a part of or on one member entering a hole in the other and involving plastic deformation of sheets or plates mutually
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0838—Insulating elements, e.g. for sound insulation for engine compartments
    • 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
    • F16B5/04—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of riveting
    • F16B5/045—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of riveting without the use of separate rivets

Definitions

  • the present invention generally relates to a fastener for a shielding member such as a heat shield or a sound shielding member in a motor vehicle typically driven by an internal combustion engine, a power generator, or a combined heat and power plant. Further, the present invention relates to a shield member such as a heat shield or a Schallabnicelement, which is connected to the fastener according to the invention or can be connected thereto.
  • a shielding member such as a heat shield or a Schallabpresselement
  • DE 102 47 641 B3 One possibility for fastening a sound-absorbing shielding part to a vehicle is disclosed, for example, in DE 102 47 641 B3.
  • the shielding part is fastened by a plurality of brackets to a vehicle, which in turn are connected to the shielding part itself by independent rivets.
  • EP 1690743 Bl Another way to attach a sound-absorbing shielding to a vehicle is disclosed for example in EP 1690743 Bl.
  • the shielding part is fastened to a vehicle by a push button.
  • a shielding part in particular acoustic and or heat shield as it is known, for example from internal combustion engine applications in the vehicle sector, power generator area or from combined heat and power plants is provided.
  • a fastener is attached at the shielding .
  • the shield member includes at least one opening and wherein the fastener comprises at least one protrusion, each of the protrusions extending through the corresponding opening, and wherein at least one end portion of the at least one protrusion is shaped to secure the fastener to the shield member can.
  • the fastener which serves to attach a shielding member such as a heat shield or a temperature shield on a motor vehicle, provided with a projection which passes through a corresponding opening of the Shielding part should occur.
  • a second step it is provided that the end of the projection is deformed in order to fasten the shielding part to the fastening element.
  • the fastening element of the shielding at least largely made of aluminum and is designed as an injection molded part, d. h., it was made by injection molding.
  • injection molding very little waste is produced (with the exception of the cast webs).
  • any incurred injection molding waste can immediately be melted down again and used to manufacture further components.
  • it allows the injection molding process, for example, threaded inserts into the component with cast.
  • threaded pins or other elements with an external thread
  • threaded holes threaded bolts tapped holes and / or threaded bushes to the component.
  • the fastener of the aluminum shielding member is made by stamping, stamping or drop forging.
  • stamping In addition to the penalty of blending during stamping / embossing / drop forging, these processing techniques have the advantage of not having to provide technology for melting and processing molten metals.
  • the stamping also allows threaded pins or threaded bushes to be pressed into the component. However, it is also possible to press an external thread in punched projections. With a more complex tool is also possible to produce an internal thread by pressing.
  • the at least one projection forms a prism. More preferably, the at least one projection is cylindrical.
  • the projection may be straight or slightly tapered to facilitate later insertion into complementary openings on a shielding member such as a sound and / or heat shield.
  • the projection comprises a widened end region.
  • the at least one end portion is cold-deformed.
  • the at least one end portion was first cold-deformed after being inserted through the opening in the shield member.
  • the at least one projection is cold-deformable.
  • aluminum can be deformed relatively easily. Just produced by injection molding aluminum parts can through the Selection of a suitable alloy and a suitable temperature profile during casting show positive cold-forming properties.
  • the fastener can be cold-riveted to the shield member by deforming the at least one projection at its end into a kind of rivet head.
  • a cylindrical protrusion may be inserted through a round hole in the shielding member, whereupon the end portion of the protrusion protruding through the hole is deformed like a rivet head.
  • the shielding member is riveted to the fastener with the deformed end portion of the protrusion. This is possible in particular with other than just round openings and in particular with protrusions with thickened end portions.
  • the fastening element of the shielding part further comprises at least one threaded bore and / or at least one threaded bolt, which is designed in one piece with the fastening element.
  • a threaded hole can be easily poured into a casting, with only the cost of the tool is slightly increased, it can be used cores or parts he form that are unscrewed when separating the mold from the thread.
  • a threaded bolt can be very easily cast on a casting, especially if it is located in the parting plane of the mold. It is also possible to press a thread in a, substantially straight projection, provided that the thread can be arranged in the parting plane of the mold and the material is sufficiently deformable.
  • a shielding member including openings for receiving at least one protrusion of a fastener.
  • the opening is provided with at least one flexible tab or a flexible strip, which can be bent when receiving the at least one projection of a fastener.
  • This embodiment can simplify assembly by preventing the tabs from slipping off the projection by clinging to the projection like the tabs of a clamping disc.
  • the tab can also be plastically deformed during assembly. It is particularly provided that the tab is also plastically deformed in a possible deformation of the end portion of the projection.
  • the flexible tab or tab is elastically bent upon receipt of the at least one projection of the fastener.
  • This embodiment is particularly suitable for shielding parts comprising at least one layer of a solid material such as alloyed aluminum or spring steel.
  • a solid material such as alloyed aluminum or spring steel.
  • the shielding member includes a fastener secured thereto, wherein the at least one flexible tab or the at least one flexible tab holds the at least one of a protrusion fixed in the opening.
  • the deformed tabs or strips are wedged to the projection that projection can not be removed from the opening.
  • the shielding member includes a fastener attached thereto, wherein an end portion of the protrusion is shaped so that the protrusion is pushed through the opening of the shielding member but can not be removed from the opening.
  • the shielding member includes a fastener secured thereto, wherein an end portion of the at least one protrusion, after being pushed through the corresponding opening on the shielding member, has been deformed or reshaped such that the protrusion is no longer removed from the aperture can be.
  • a fastener for attaching a shield member, in particular an acoustic and / or heat shield, comprising at least one corresponding aperture.
  • the fastener is made of aluminum by injection molding, stamping or stamping and includes at least one protrusion each intended to be engaged with the corresponding at least one opening of the shield member.
  • the at least one projection has a widened end portion, so that the projection with the widened end portion pushed through the corresponding opening, but can not be removed from the opening.
  • This fastener is particularly intended to be used with a shielding member which is attached to the Openings has elastic elements such as resilient tabs or strips. In this case, the end of the projection can engage behind the elastic elements of the shielding, or be pushed by the elastic elements laterally over the edge of the opening.
  • the tabs preferably engage behind a thickened end region of a projection in a form-fitting manner.
  • the end or the end region of the advantageously cylindrical or prism-shaped projection can be hook-shaped or widened in a mushroom-shaped manner.
  • a thickened or widened configuration of the end portion of the projection for example, this can be inserted into a mushroom-shaped, elongated or cruciform opening, and by twisting or deforming the end portion can be prevented that the projection or the fastener can be separated again from the shielding ,
  • a hook or cross-shaped end portion of a projection can be rotated. It is also possible to deform a hook or cross-shaped end portion by upsetting, so that it can not be removed from the opening.
  • a thickened end portion may be used together with an opening in a shielding member having elastic properties, which may be achieved by, for example, flexible tabs or stiffeners disposed in the shielding member.
  • the at least one projection below the widened end portion is cylindrical or prismatic. Cylindrical protrusions can be used particularly well with round openings, while prismatic protrusions can also transmit torque to some degree.
  • at least the widened end region of the at least one projection is cold-deformable.
  • the projection already latched in an opening of a shielding member can be additionally fixed to the shielding member by reshaping the end portion. By reshaping the end region, the shielding part can be riveted to the fastening element.
  • the fastening element further comprises at least one threaded bore and / or at least one threaded bolt, which is designed in one piece with the fastening element.
  • a threaded hole can be easily poured into a casting, with only the cost of the tool is slightly increased, it can be used cores or parts he form that are unscrewed when separating the mold from the thread.
  • a threaded bolt can be very easy on Casting be casted, especially if it is arranged in the parting plane of the mold. It is also possible to press a thread in a, substantially straight projection, provided that the thread can be arranged in the parting plane of the mold and the material is sufficiently deformable.
  • the at least one projection is accommodated in the at least one opening for receiving the at least one projection, wherein an end region of the projection is deformed such that projection can no longer be removed from the opening.
  • FIGS. 1A to 1C show the mounting of a fastening element according to the invention on a shielding part, which is embodied here as an acoustic and heat shielding plate.
  • FIGS. 2A to 2D show the mounting of another embodiment of a fastener according to the invention on a shielding part according to the invention, which is also designed here as an acoustic and heat shield.
  • FIGS. 3A and 3B show two embodiments of a shielding part according to the invention, whose openings are provided with elastic lugs which simplify the mounting of the shielding part designed as an acoustic and heat shielding plate on a fastening element. Both in the description and in the figures, the same or similar reference numerals are used to designate the same or similar elements.
  • FIG. 1A to 1C show the mounting of a fastening element 2 according to the invention on an acoustic and heat shield 14.
  • the acoustic and heat shield 14 is provided with two openings 16.
  • the fastening element 2 is provided with two projections 4, which are formed directly on the fastening element 2.
  • the fastener 2 may be cast or from a sheet be formed.
  • the illustrated version of the fastener 2 is designed as an aluminum casting.
  • the projections 4 are formed directly on the fastening element 2.
  • the fastener 2 is also provided with an integrally formed threaded bore 12 and with a molded threaded bolt 10 to illustrate that the fastener may also serve to attach sensors, wires or other elements of a motor vehicle. It is also possible to pour a threaded element such as a nut or a threaded pin during injection molding in the fastener. It can also be brackets, hooks, eyelets are poured into the fastener 2.
  • the projections 4 are formed directly on the fastening element 2 and made cylindrical.
  • the acoustic and heat shield 14 is provided with corresponding circular openings 16 through which the projections 4 of the fastener can be pushed through.
  • FIG. 1B is shown how the projections 4 of the fastener 2 are pushed through the openings 16 of the acoustic and heat shield 14, and the fastener 2 rests on the acoustic and heat shield 14.
  • FIG. 1C the ends or end portions of the projections 4 have been deformed so that they can no longer be pulled out of the openings 16 of the acoustic and heat shield plate 14. It is possible to deform cylindrical projections similar to a rivet to a rivet head, so that the acoustic and heat shield 14 is riveted by the deformed ends 8 of the projections 4 with the fastener 2.
  • FIGS. 2A to 2D show the mounting of another embodiment of a fastening element 2 according to the invention on an acoustics and heat shield 14 likewise according to the invention.
  • the acoustic and heat shield plate 14 is provided with two openings 16.
  • the openings are provided with two flexible tabs 18.
  • the fastening element 2 has two projections 4 on the thickened end portions 6 are hook-shaped or mushroom-shaped.
  • the end portions 6 may be formed mushroom-shaped only half, so that a tab can readily spring back, whereby it rests against a shank of the projection.
  • the thickened end portions 6 can be inserted into openings 16 which are provided with flexible tabs 18. When inserted, the tabs 18 deviate from the thickened end regions 6 as shown in FIG. 2B. If the tabs 4/6 completely are inserted, the tabs spring back 18 and fix the shielding or the acoustic and heat shield 14 on the fastener 2, as shown in Figure 2C. If it should show that the fixation according to FIG.
  • FIG. 3A shows a perspective view of a shielding part according to the invention, which is designed as an acoustic and heat shielding plate 14.
  • the acoustic and heat shield 14 includes two openings 16, each provided with a resilient tab 18.
  • the opening 16 with the narrower tab 18 is provided for a projection which is substantially hook-shaped, and in its cross section corresponds to the projection 4 shown in FIG.
  • FIG. 3B shows a perspective view of another embodiment of a shielding part according to the invention, which is designed as an acoustic and heat shielding plate 14.
  • the acoustic and heat shield 14 in turn comprises two openings 16, which are each provided with eight elastic tabs 18.
  • the openings 16 are intended to receive substantially straight projections 4 (as shown in Figure 1A).
  • the tabs 18 bend like the laugh of a clamping disc against the projection 4 and wedged with this, thereby preventing it from being pulled out of the opening 18 again.
  • the spring strength of the elastic tabs can be much lower than in conventional steel clamping disks, which are designed for steel shafts, since the fastener 2 is preferably made of softer aluminum.
  • the pools 18 of the acoustic and perennial abpressblechs 14 may also be made of aluminum.
  • the acoustic and heat shield 14 has a plurality of layers, each of which may be provided individually with openings 16, each provided with its own elastic tabs 18.
  • the pools 18 of the individual layers are offset relative to each other in order to improve the shielding properties of the shielding part or of the acoustic and heat shielding plate 14 in the region of the openings 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Exhaust Silencers (AREA)

Abstract

L'invention concerne une partie de protection (14), en particulier une tôle de protection acoustique et/ou thermique, comprenant au moins une ouverture (16) à travers laquelle s'étend respectivement une partie saillante (4) d'un élément de fixation (2) façonné au niveau d'une zone d'extrémité de sorte que l'élément de fixation (2) soit fixé sur la partie de protection. La présente invention concerne en outre une partie de protection (14) dotée d'au moins une ouverture (16) destinée à loger au moins une partie saillante (4) d'un élément de fixation (2), l'ouverture (16) comprenant une languette flexible (18) déformée de manière élastique et/ou plastique lors du logement de la ou des parties saillantes (4) d'un élément de fixation (2) et fixant la partie saillante dans l'ouverture. La présente invention concerne en outre un élément de fixation (2) doté d'au moins une partie saillante (4) comprenant une zone d'extrémité élargie (6) pouvant être poussée à travers l'ouverture (16) correspondante d'une partie de protection, mais ne pouvant plus en être retirée.
PCT/EP2012/064451 2011-09-19 2012-07-24 Élément de fixation pour une partie de protection et partie de protection dotée d'un élément de fixation WO2013041271A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12740570.2A EP2758676A1 (fr) 2011-09-19 2012-07-24 Élément de fixation pour une partie de protection et partie de protection dotée d'un élément de fixation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011082936.9 2011-09-19
DE102011082936A DE102011082936A1 (de) 2011-09-19 2011-09-19 Befestigungselement für ein Abschirmteil und Abschirmteil mit Befestigungselement

Publications (1)

Publication Number Publication Date
WO2013041271A1 true WO2013041271A1 (fr) 2013-03-28

Family

ID=46584013

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/064451 WO2013041271A1 (fr) 2011-09-19 2012-07-24 Élément de fixation pour une partie de protection et partie de protection dotée d'un élément de fixation

Country Status (3)

Country Link
EP (1) EP2758676A1 (fr)
DE (1) DE102011082936A1 (fr)
WO (1) WO2013041271A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013107495A1 (de) * 2013-07-15 2015-01-15 Elringklinger Ag Abschirmeinrichtung
DE102014105536A1 (de) * 2014-04-17 2015-10-22 Elringklinger Ag Abschirmteil
DE202016105158U1 (de) 2016-09-15 2016-10-13 Rational Aktiengesellschaft Bauteil mit einer Befestigungsöffnung sowie Befestigungsbaugruppe
DE102017219168A1 (de) * 2017-10-25 2019-04-25 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Herstellen einer Bauteilverbindung
FR3074898B1 (fr) 2017-12-07 2020-07-17 Jtekt Europe Utilisation d’un moteur d’assistance d’un systeme de direction assistee afin de generer des cycles de test selon un cycle d’exploitation en effort
FR3079906B1 (fr) 2018-04-09 2020-10-23 Psa Automobiles Sa Dispositif de maintien securise et de protection thermique d’elements.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10247641B3 (de) 2002-10-11 2004-01-15 Audi Ag Schalldämpfendes Abschirmteil, insbesondere für ein Bauteil eines Kraftfahrzeugs
DE202004001980U1 (de) * 2004-02-04 2005-06-23 Brose Fahrzeugteile Gmbh & Co. Kg, Coburg Vorrichtung zum Verbinden von Bauelementen
EP1690743B1 (fr) 2005-02-11 2008-01-23 ElringKlinger AG Ecran de protection, notamment écran thermique
EP1923577A1 (fr) * 2006-11-17 2008-05-21 Reinz-Dichtungs-Gmbh Élément comportant plusieurs parties, en particulier écran thermique comportant plusieurs parties

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5601899A (en) * 1995-03-17 1997-02-11 Cascade Engineering, Inc. Sheet with integral fastener
JP4398222B2 (ja) * 2003-10-29 2010-01-13 ニチアス株式会社 防振遮熱板
DE102004062331B4 (de) * 2004-12-20 2007-11-22 Carcoustics Tech Center Gmbh Hitzeschild und Verfahren zu dessen Herstellung
DE202006001894U1 (de) * 2006-02-03 2007-06-06 Carcoustics Tech Center Gmbh Befestigungselement für Fahrzeugteile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10247641B3 (de) 2002-10-11 2004-01-15 Audi Ag Schalldämpfendes Abschirmteil, insbesondere für ein Bauteil eines Kraftfahrzeugs
DE202004001980U1 (de) * 2004-02-04 2005-06-23 Brose Fahrzeugteile Gmbh & Co. Kg, Coburg Vorrichtung zum Verbinden von Bauelementen
EP1690743B1 (fr) 2005-02-11 2008-01-23 ElringKlinger AG Ecran de protection, notamment écran thermique
EP1923577A1 (fr) * 2006-11-17 2008-05-21 Reinz-Dichtungs-Gmbh Élément comportant plusieurs parties, en particulier écran thermique comportant plusieurs parties

Also Published As

Publication number Publication date
EP2758676A1 (fr) 2014-07-30
DE102011082936A1 (de) 2013-03-21

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