EP4220623A1 - Procédé de fabrication et composition d'absorbeurs acoustiques pour pneus de véhicule - Google Patents

Procédé de fabrication et composition d'absorbeurs acoustiques pour pneus de véhicule Download PDF

Info

Publication number
EP4220623A1
EP4220623A1 EP23154335.6A EP23154335A EP4220623A1 EP 4220623 A1 EP4220623 A1 EP 4220623A1 EP 23154335 A EP23154335 A EP 23154335A EP 4220623 A1 EP4220623 A1 EP 4220623A1
Authority
EP
European Patent Office
Prior art keywords
sound
materials
another
vehicle tires
sound absorber
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
EP23154335.6A
Other languages
German (de)
English (en)
Inventor
Sebastian Müller
Nadine Kraft-Müller
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP4220623A1 publication Critical patent/EP4220623A1/fr
Pending legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches

Definitions

  • the invention relates to a method for producing sound absorbers for vehicle tires and their material composition.
  • the sound absorbers serve as sound absorbers that can be used or retrofitted for vehicle tires, which can be adapted to tires of different vehicles using simple means and an efficient method.
  • the conveying device serves to convey the band-shaped sound absorber to a tire inner side of a tire by means of a feeding section for feeding the band-shaped sound absorber into a conveying section.
  • the conveying section is designed to convey the belt-shaped sound absorber from an upper opening through which the belt-shaped sound absorber can be received via the feeding section to a lower opening through which the belt-shaped sound absorber can be discharged, whereby in the conveying section a rotatable core is arranged.
  • Flanks protruding therefrom are formed on a surface of the rotatable core, and the core is rotated about an axis of rotation by a drive.
  • the flanks run helically on the surface of the core.
  • a band-shaped sound absorber fed via the feed section is wound up onto the core, limited laterally by the flanks.
  • the strip-shaped sound absorber wound onto the core is conveyed in a conveying direction when the core is twisted.
  • the band-shaped sound absorber conveyed in this way is thus guided from the conveying section via a discharge section to an assembly area.
  • the sound shielding element has at least one plate or layer in an adjacent room and/or for covering sound-reflecting or sound-generating components. This has a large number of very small openings.
  • the plate thickness or layer thickness is between 0.01 and 50 mm, the average diameter or the width of the openings is between 0.001 and 2 mm and the hole area ratio is between 0.001 and 20%.
  • This sound shielding element takes up little space and is easy to produce and can be attached to many places in the car.
  • it is disadvantageous that attachment in the immediate vicinity of the noise-acoustic source of interference caused by tire noise is not possible.
  • the attachment of the sound shielding element is complex and the application is limited to its respective physical training.
  • a vehicle tire which has a ring of material bonded inside it to the inner surface opposite the tread.
  • the ring of material adheres to a self-sealing sealant. At least immediately after it has been applied, this sealant has the tack required for the material ring to adhere.
  • the sealant which also serves as an adhesive, is applied after the tire has been heated, ie immediately during the manufacturing process. It is therefore not possible to retrofit the soundproofing measures on tires that have already been completed. Another disadvantage of this solution is the use of environmentally harmful foams.
  • a sound absorbing element for a wheel of a vehicle or motor vehicle with a gas-filled cavity arranged between the rim and the tire Is known from the prior art after WO 2020/207915 A1 a sound absorbing element for a wheel of a vehicle or motor vehicle with a gas-filled cavity arranged between the rim and the tire.
  • a ring-shaped base body made of textile material designed for this purpose is applied flat to the base of the rim. Extensions are arranged on an outer side of the base body and protrude into the cavity at least when the wheel is rotating at a sufficiently high speed.
  • the sound-damping element has the property of damping the structure-borne noise emitted by the rim and the noise propagating outside of the cavity. The noise emission of the wheel is reduced in this way and the mechanical stress on the rim and/or the tire is prevented as far as possible.
  • the complicated structure of the soundproofing element and the limitation of the application to its respective intended physical structure there are also disadvantages in this solution, the complicated structure of the soundproofing element and
  • the noise-suppressing body is fixed to a tire-side cavity surface and is also covered by a waterproof protective member.
  • the noise-suppressing body has a volume that is 0.4 to 20% of the entire volume of the tire cavity and is formed of sponge material. This sponge material extends in the circumferential direction and is installed in the tire inner cavity formed by the tire and the rim.
  • the sound-suppressing body consists of a tire-side sound-suppressing body having a bottom surface fixed to the tire or a rim-side sound-suppressing body having a bottom surface fixed to the rim.
  • the areal gravity of the tire-side sound-suppressing body or the centroid of area weight point of a sound-suppressing body main part is set in a predetermined range by the sound-suppressing body.
  • Adhesive coated with peeling paper is applied to the underside of the noise-cancelling body.
  • a disadvantage of this arrangement is the limitation of use to the point in time of the assembly process in the manufacture of commercial tires.
  • This solution is unsuitable for sound-absorbing retrofits on tires with different dimensions using renewable raw materials as sound absorbers.
  • the object of the invention is therefore to create a sound absorber for vehicle tires that can be used or retrofitted, which is composed of environmentally friendly materials, can be combined with other sound-suppressing materials by means of a fixed connection before assembly and can be combined with one another by means of an efficient process in terms of shape, size and properties Tires of different vehicles can be adjusted.
  • the material surfaces of the noise-suppressing body are efficiently designed to be self-adhesive and provided with removable protective films, and when the tires are retrofitted, the materials are joined together in layers and/or next to one another by producing adhesive bonds.
  • the method proves to be advantageous if at least one of the materials to be connected to one another from renewable raw materials in layers and/or next to one another consists of hemp fibers. Depending on the availability of the raw materials, it is also advantageous if at least one of the materials to be connected to one another from renewable raw materials in layers and/or next to one another is made of biological polyester.
  • the use of the method for a wide-ranging adaptation to tires of different dimensions becomes effective when materials of the same type or selected for different sound-suppressing properties are combined to achieve the specified soundproofing and are adhesively bonded to one another in layers and/or next to one another.
  • renewable raw materials are used as materials, the surfaces of which are designed in such a way that they can be adhesively bonded to one another.
  • the materials of the sound absorber are designed in the form of strips, which is economically effective in terms of handling and the cost of materials, and the surfaces on the top and bottom of the strip are provided with self-adhesive properties.
  • a wide range of applications for using the sound absorber on tires with different dimensions is effectively achieved if the sound absorber is adhesively bonded together in layers from at least two band-shaped materials each having different or the same sound-insulating properties.
  • a quick and easy retrofitting of the differently dimensioned tires with the sound absorbers that can be assembled from the individual materials is efficiently achieved if at least two band-shaped materials each having different or the same sound-insulating properties are adhesively joined next to one another on a base body.
  • a design of the sound absorber that is advantageous for the retrofitting process is achieved by the band-shaped materials having different or similar sound-insulating properties being applied to supply rolls, the respective upper and lower sides of which are designed to be self-adhesive and provided with a removable protective film, the required sound-insulating effect being achieved by the layered and/or adjacent adhesive arrangement of the selected materials Body is formed, which corresponds to the respectively specified sound insulation properties of the tires.
  • the representation of figure 1 shows an embodiment of the sound absorber in the form of a strip.
  • a surface section with a non-adhesive surface 1 and a surface section with a self-adhesive surface 2 are reproduced in the partial schematic representation of the tape on one of the surfaces running along the tape.
  • a protective film 3 partially peeled off the surface of the tape.
  • the section of non-stick surface 1 shown serves as a work surface when retrofitting the tires.
  • Renewable raw materials are used as the material for the sound absorber. These can be made of hemp fibers or biological polyester, for example. In the specific embodiment, these materials can be designed as polyester nonwovens.
  • the band-shaped sound absorbers can each be formed with self-adhesive surfaces 2 on the top and bottom.
  • One of the self-adhesive surfaces 2 is used for tire-side attachment and the other self-adhesive surface 2 is used for adhesive connection with other sound absorbers made of the same materials or different materials.
  • the schematic representation of figure 2 shows two prepared sections of the band-shaped sound absorber, which are connected to one another in order to achieve a predetermined sound-damping effect adapted to the tire.
  • the self-adhesive surfaces of the first strip section 5 and the second strip section 4 are used for the connection to one another.
  • One of the outwardly facing surfaces of the combination of the band sections 4, 5 is used to create the connection with the rim inside the tire cavity.
  • the removable protective films 3 applied to the top and bottom of the respective band-shaped sound absorber serve to protect the adhesive surfaces applied to the band surfaces.
  • the figure 3 shows a possible combination of several sound absorbers made from the same and/or different sound-absorbing materials.
  • several sound absorbers divided into band sections 4, 5, 6, 7 were adhesively connected to one another during retrofitting.
  • the lowermost strip section 7 is adhesively connected to the rim and the further strip sections 4, 5 and 6 are adhesively applied to the strip section 7.
  • the sound-damping materials used can alternatively have the same or different sound-damping values.
  • the number and physical dimensions of the required sound absorbers depend on the soundproofing values to be achieved.
  • the band-shaped sound-absorbing materials can be rolled up on a supply roll and cut into band sections during assembly preparation.
  • the required strip sections are then adhesively connected to the rim next to one another and/or one above the other.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Tires In General (AREA)
EP23154335.6A 2022-02-01 2023-01-31 Procédé de fabrication et composition d'absorbeurs acoustiques pour pneus de véhicule Pending EP4220623A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022000380.5A DE102022000380A1 (de) 2022-02-01 2022-02-01 Herstellungsverfahren und Zusammensetzung von Schallabsorbern für Fahrzeugreifen

Publications (1)

Publication Number Publication Date
EP4220623A1 true EP4220623A1 (fr) 2023-08-02

Family

ID=85150993

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23154335.6A Pending EP4220623A1 (fr) 2022-02-01 2023-01-31 Procédé de fabrication et composition d'absorbeurs acoustiques pour pneus de véhicule

Country Status (2)

Country Link
EP (1) EP4220623A1 (fr)
DE (1) DE102022000380A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69303622T2 (de) * 1992-11-17 1996-11-07 Olin Soc Schalldämpfende,mehrschichtige Auskleidung
WO2000068039A1 (fr) 1999-05-06 2000-11-16 Faist Automotive Gmbh & Co. Kg Element de protection sonore, son utilisation et son procede de realisation
WO2004107314A1 (fr) * 2003-05-28 2004-12-09 Clion Ireland Holding Ltd. Isolant acoustique
EP1510366A1 (fr) 2002-06-05 2005-03-02 Sumitomo Rubber Industries, Ltd. Ensemble pneumatique-jante, element insonorisant utilise avec cet ensemble et procede de stockage de pneumatiques
US20100270101A1 (en) * 2004-03-16 2010-10-28 Naoki Yukawa Pneumatic tire with noise damper
DE202016003731U1 (de) * 2016-06-15 2016-07-13 Bosig Gmbh Schallabsorber
WO2017076531A1 (fr) 2015-11-05 2017-05-11 Continental Reifen Deutschland Gmbh Pneumatique de véhicule
DE102018217579A1 (de) 2018-10-15 2020-04-16 Continental Reifen Deutschland Gmbh Fördereinrichtung zum Fördern eines bandförmigen Schallabsorbers, Montageanlage, sowie Verfahren zum Montieren des bandförmigen Schallabsorbers an einem Reifen
WO2020207915A1 (fr) 2019-04-12 2020-10-15 Volkswagen Aktiengesellschaft Élément d'absorption acoustique pour roue de véhicule à moteur

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69303622T2 (de) * 1992-11-17 1996-11-07 Olin Soc Schalldämpfende,mehrschichtige Auskleidung
WO2000068039A1 (fr) 1999-05-06 2000-11-16 Faist Automotive Gmbh & Co. Kg Element de protection sonore, son utilisation et son procede de realisation
EP1510366A1 (fr) 2002-06-05 2005-03-02 Sumitomo Rubber Industries, Ltd. Ensemble pneumatique-jante, element insonorisant utilise avec cet ensemble et procede de stockage de pneumatiques
WO2004107314A1 (fr) * 2003-05-28 2004-12-09 Clion Ireland Holding Ltd. Isolant acoustique
US20100270101A1 (en) * 2004-03-16 2010-10-28 Naoki Yukawa Pneumatic tire with noise damper
WO2017076531A1 (fr) 2015-11-05 2017-05-11 Continental Reifen Deutschland Gmbh Pneumatique de véhicule
DE202016003731U1 (de) * 2016-06-15 2016-07-13 Bosig Gmbh Schallabsorber
DE102018217579A1 (de) 2018-10-15 2020-04-16 Continental Reifen Deutschland Gmbh Fördereinrichtung zum Fördern eines bandförmigen Schallabsorbers, Montageanlage, sowie Verfahren zum Montieren des bandförmigen Schallabsorbers an einem Reifen
WO2020207915A1 (fr) 2019-04-12 2020-10-15 Volkswagen Aktiengesellschaft Élément d'absorption acoustique pour roue de véhicule à moteur

Also Published As

Publication number Publication date
DE102022000380A1 (de) 2023-08-03

Similar Documents

Publication Publication Date Title
DE69422430T2 (de) Vibrationsdämpfungsprofil, dessen Herstellungsverfahren und Konstruktionselementfür Transportfahrzeug
EP3245265B1 (fr) Bande adhésive, notamment une bande enveloppante
DE102013012827A1 (de) Anordnung aus Luftreifen und Felge
DE69808003T2 (de) Mehrschichtiges Blech, genannt Sandwich-Blech
CH678306A5 (fr)
WO2008031682A1 (fr) Tôle composite structurée
DE19580284C1 (de) Schwingungs- und Schalldämpfer
DE102014221394A1 (de) Verfahren zur Herstellung eines Fahrzeugluftreifens und Fahrzeugluftreifen
EP4220623A1 (fr) Procédé de fabrication et composition d'absorbeurs acoustiques pour pneus de véhicule
EP0237036B1 (fr) Corps profilé, en particulier pour moulure de recouvrement
DE2129112C3 (de) Schwingungsgedämpftes drehbares Maschinenelement
DE2619536A1 (de) Reibungskupplung mit elastischer zwischenlage
EP2511566A2 (fr) Procédé pour la fabrication d'une roue d'inertie
DE2610580A1 (de) Schleifkoerper fuer rotierenden antrieb
DE102009006708B4 (de) Verfahren zum Herstellen eines Elastomerlagers
DE69225476T2 (de) Verfahren zum abdecken unter verwendung von schaumbaendern
DE102019205360A1 (de) Schalldämpfungselement für ein Rad für ein Kraftfahrzeug
DE2750743C3 (de) Schwingungsgedämpftes Schienenrad
DE102016214522A1 (de) Schallgedämpftes Schienenfahrzeugrad
DE3312660C2 (fr)
DE2418621C3 (de) Klotzgebremster Radsatz
DE102018107117A1 (de) Reibteil
DE102007003664A1 (de) Rolladenkasten
EP1177094B1 (fr) Element d'attenuation multicouche plat et procede permettant de le fixer sur une tole a insonoriser
EP0113475A2 (fr) Partie en forme de plaque ayant un effet d'amortissement sonore et de renforcement

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

17P Request for examination filed

Effective date: 20240130