EP4295583A1 - Appui-tête pour siège de véhicule et siège de véhicule - Google Patents

Appui-tête pour siège de véhicule et siège de véhicule

Info

Publication number
EP4295583A1
EP4295583A1 EP22706400.3A EP22706400A EP4295583A1 EP 4295583 A1 EP4295583 A1 EP 4295583A1 EP 22706400 A EP22706400 A EP 22706400A EP 4295583 A1 EP4295583 A1 EP 4295583A1
Authority
EP
European Patent Office
Prior art keywords
headrest
loudspeaker unit
support
loudspeaker
cover
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
EP22706400.3A
Other languages
German (de)
English (en)
Inventor
Thomas Dillinger
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.)
Adient US LLC
Original Assignee
Adient US LLC
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
Priority claimed from DE102021112215.5A external-priority patent/DE102021112215A1/de
Application filed by Adient US LLC filed Critical Adient US LLC
Publication of EP4295583A1 publication Critical patent/EP4295583A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/80—Head-rests
    • B60N2/879—Head-rests with additional features not related to head-rest positioning, e.g. heating or cooling devices or loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers
    • H04R5/023—Spatial or constructional arrangements of loudspeakers in a chair, pillow
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/023—Screens for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/13—Acoustic transducers and sound field adaptation in vehicles

Definitions

  • the invention relates to a headrest for a vehicle seat, with a headrest support, a first loudspeaker unit and at least one second loudspeaker unit, the first loudspeaker unit and the at least one second loudspeaker unit being carried by the headrest support, the headrest also having a reference element and a cover, the Reference element covers the headrest support, the first loudspeaker unit and the at least one second loudspeaker unit in the direction of an abutment surface and the cover covers the headrest support, the first loudspeaker unit and the at least one second loudspeaker unit in a direction opposite to the abutment surface.
  • the invention also relates to a vehicle seat.
  • Headrests for vehicles are generally known from the prior art, in which a filling material in the form of a foam is arranged between an outer cover and an inner connecting part for connecting the headrest to a headrest holder.
  • a preformed foam body is used to fill the headrest body.
  • Such a headrest for a vehicle is disclosed in DE 102005015292 B3.
  • the headrest includes a headrest body and a headrest bracket, with a cover provided on the outside of the headrest body.
  • Inside the headrest body is a connecting part for connecting the headrest bracket provided with the headrest body, wherein a filling material formed of foam is arranged between the connecting part and the cover.
  • the filling material is liquid in its processing state, with the connection part and the cover defining a substantially tight spatial area with respect to the filling material in its processing state.
  • a method for producing the headrest is described.
  • DE 102015212510 A1 discloses a headrest with a headrest body which has at least one frame with one or more flexible support elements lying on the inside and forming a contact surface and is manufactured by primary molding from a plastic material, in particular a material free from foamed materials, or a composite material .
  • a headrest with a built-in function module is known from EP 3274215 B1, the function module being a loudspeaker unit.
  • a headrest with a dipole loudspeaker is known from WO 2019/121266 A1.
  • the dipole speaker is suitable for producing sound at bass frequencies.
  • the dipole loudspeaker has a diaphragm with a first radiating surface and a second radiating surface, the first radiating surface and the second radiating surface being on opposite sides of the diaphragm, the first and second radiating surfaces each having a surface area of at least 100 cm 2 .
  • the dipole speaker further includes a drive unit configured to move the diaphragm at bass frequencies such that the first and second radiating surfaces produce sound at bass frequencies, with the sound generated by the first radiating surface being antiphase to the sound generated by the second radiating surface is.
  • the invention is based on the object of improving a headrest of the type mentioned at the outset, in particular a headrest with integrated loudspeakers to propose a reduced required installation space and at the same time an extended acoustic frequency range, and to provide a corresponding vehicle seat.
  • a headrest for a vehicle seat with a headrest support, a first loudspeaker unit and at least one second loudspeaker unit, the first loudspeaker unit and the at least one second loudspeaker unit being carried by the headrest support, the headrest also having a reference element and a cover , wherein the reference element covers the headrest support, the first loudspeaker unit and the at least one second loudspeaker unit in the direction of an abutment surface and the cover covers the headrest support, the first loudspeaker unit and the at least one second loudspeaker unit in a direction opposite to the abutment surface.
  • the reference element, the headrest support and the cover are designed in such a way that sound generated by means of the first loudspeaker unit, in particular by means of a membrane of the first loudspeaker unit, in particular in a direction perpendicular to the membrane of the first loudspeaker unit, can be emitted from the headrest to a Outside of the headrest can be emitted largely undamped, it is possible to use the principle of the so-called "open baffle".
  • a specific air flow resistance of less than 200 Pa s/m is to be understood as largely undamped. Values greater than 200 Pa s/m should not fall under the term largely undamped.
  • the specific air flow resistance is preferably less than 100 Pa s/m, most preferably less than 25 Pa s/m, in each case measured according to ISO 9053, method B.
  • the specific air flow resistance of the reference element can be less than 200 Pa s/m, in particular less than 100 Pa s/m, most preferably less than 25 Pa s/m.
  • the specific air flow resistance of the reference element in an area covering the first loudspeaker unit and/or the at least one second loudspeaker unit can be less than 200 Pa s/m, in particular less than 100 Pa s/m, most preferably less than 25 Pa s/m , each measured according to ISO 9053, method B.
  • the specific air flow resistance of the cover can be less than 200 Pa s/m, in particular less than 100 Pa s/m, most preferably less than 25 Pa s/m.
  • the specific air flow resistance of the cover in an area covering the first loudspeaker unit and/or the at least one second loudspeaker unit can be less than 200 Pa s/m, in particular less than 100 Pa s/m, most preferably less than 25 Pa s/m, each measured according to ISO 9053, method B.
  • the first loudspeaker unit can be an acoustic dipole loudspeaker.
  • the at least one second loudspeaker unit can be an acoustic dipole loudspeaker.
  • the first speaker unit can be held centrally in the headrest support.
  • the at least one second loudspeaker unit can be held laterally offset to the first loudspeaker unit in the headrest support.
  • the headrest can have two second loudspeaker units.
  • the two second speaker units may be arranged opposite each other on the side of the first speaker unit.
  • the first loudspeaker unit can be arranged between the two second loudspeaker units.
  • the first loudspeaker unit can be a woofer loudspeaker.
  • a woofer is also known as a bass speaker or woofer.
  • the low-frequency loudspeaker can be designed as an open loudspeaker without boxes, in particular as a membrane loudspeaker or wall loudspeaker.
  • the woofer speaker can be designed as an acoustic dipole or a baffle speaker.
  • the first loudspeaker unit can be a loudspeaker unit known from WO 2019/121266 A1.
  • the second speaker unit can be a midrange speaker.
  • a midrange speaker is also called a midrange speaker.
  • the second speaker unit can be a tweeter speaker.
  • a tweeter is also called a tweeter.
  • the second loudspeaker unit can be a combined mid-range/high-range loudspeaker.
  • the second loudspeaker unit can be designed as an open loudspeaker without boxes, in particular as a membrane loudspeaker or as a wall loudspeaker.
  • the second loudspeaker unit can be designed as an acoustic dipole or as a baffle loudspeaker.
  • the headrest carrier can form a contact surface, which is provided by means of a plurality of internal, flexible support elements.
  • the contact surface can be formed by the support elements.
  • the specific air flow resistance of the contact surface, in particular in the area of the support elements, can be less than 200 Pa s/m, in particular less than 100 Pa s/m, preferably less than 25 Pa s/m.
  • the headrest support can be made of a plastic material or a composite material. Such a headrest support can be produced inexpensively and has good damping and support properties even without the use of foamed materials (foamless). In particular, the use of foamed materials can be completely dispensed with.
  • the headrest support is made from an impact-resistant elastoplastic or thermoplastic material, in particular a thermoplastic, polypropylene, urethane, polyurethane, polyethylene or polycarbonate-acrylonitrile-butadiene-styrene (PC-ABS).
  • PC-ABS polycarbonate-acrylonitrile-butadiene-styrene
  • the headrest support is preferably formed by injection molding of a material free from foamed plastic materials or by multi-component injection molding of a number of plastic materials.
  • the support elements can form an ergonomically designed contact surface of the headrest support (also called head contact surface).
  • the support elements form a concave bearing surface.
  • the contact surface can be shaped concavely in such a way that it has a larger contact surface than conventional headrest bodies.
  • the headrest support with a concave contact surface allows a head, in particular the back of an occupant's head, to rest against the contact surface and be supported laterally.
  • the reference element can have a perforation in a region covering the first loudspeaker unit and the at least one second loudspeaker unit.
  • the headrest support and the reference element can have a perforation in a region laterally covering the at least one second loudspeaker unit.
  • the cover can have a perforation in a region covering the first loudspeaker unit in a direction opposite to the contact surface.
  • a perforation within the meaning of the present invention is generally understood to mean a planar arrangement of holes, in particular for the regular configuration of a hole pattern, with the holes having different or the same shape and size.
  • the cover element can have a cover material and a foam layer.
  • the cover element can have a textile cover material and a foam layer.
  • the foam layer can be sewn to the cover material.
  • the foam layer can have a thickness of up to 20 mm.
  • the foam layer preferably has a thickness of up to 15 mm. Most preferably, the foam layer has a thickness of up to 10 mm.
  • the foam layer can be a layer of acoustic foam.
  • At least one sound wave guide can be arranged between the first loudspeaker unit and the at least one second loudspeaker unit.
  • the first speaker unit is arranged centrally between two second speaker units, each with a sound wave guide between the first speaker unit and each of the second speaker unit can be arranged.
  • the sound wave guide can be integrated into the headrest support.
  • the sound wave guide preferably extends over the entire height of the first loudspeaker unit and/or over the entire height of the second loudspeaker unit.
  • the sound wave guide allows the sound waves to emerge from the headrest to the front and/or to the rear, preferably to the front and to the rear.
  • the object is also achieved according to the invention by a vehicle seat having a backrest with a headrest according to the preceding description.
  • Fig. 2 an exploded view of the headrest
  • Fig. 3 another exploded view of the headrest
  • Figure 5 A sectional view of the headrest along the section plane V-V
  • figure 8, 6 a sectional representation of the headrest along the sectional plane VI-VI
  • FIG. 6A detail of FIG. 6, supplemented by an optional sound wave guide according to a first variant
  • Fig. 6B detail of Fig. 6, supplemented by an optional sound wave guide according to a second variant
  • Figure 1 shows a vehicle seat 1 according to the invention with a headrest 10 according to the invention.
  • the vehicle seat 1 shown schematically in FIG. 1 has a seat part 2 and a backrest 4, and is described below using three spatial directions running perpendicular to one another.
  • a longitudinal direction x runs largely horizontally and preferably parallel to a longitudinal direction of the vehicle, which corresponds to the usual direction of travel of the vehicle.
  • a transverse direction y running perpendicularly to the longitudinal direction x is likewise aligned horizontally in the vehicle and runs parallel to a vehicle transverse direction.
  • a vertical direction z runs perpendicular to the longitudinal direction x and perpendicular to the transverse direction y.
  • the vertical direction z runs parallel to the vertical axis of the vehicle.
  • the position information and directional information used, such as front, rear, top, bottom and side refer to a viewing direction of an occupant seated in the vehicle seat 1 in a normal seating position, the vehicle seat
  • vehicle seat 1 installed in the vehicle, in a position of use suitable for passenger transport with the backrest 4 upright and, as usual, aligned in the direction of travel.
  • vehicle seat 1 according to the invention can also be installed in a different orientation, for example transversely to the direction of travel.
  • the headrest 10 is arranged on an upper edge of the backrest 4 .
  • FIGS. 2 and 3 each show the headrest 10 in an exploded view.
  • Figures 4 to 6 show the headrest 10 along different sectional planes from Figure 8.
  • Figures 7 to 9 show sectional views of the headrest 10 along different sectional planes from Figure 6.
  • the headrest 10 has a reference element 20 , a headrest support 30 , a first loudspeaker unit 40 , two second loudspeaker units 42 and a cover 50 .
  • the headrest 10 has a headrest mount 60, by means of which the headrest 10 can be connected to a frame structure of the backrest 4 of the vehicle seat 1.
  • the headrest bracket 60 can be fixable to the frame structure.
  • the headrest 10 can be adjustable in height.
  • the first loudspeaker unit 40 and the two second loudspeaker units 42 are carried by the headrest support 30 .
  • the first loudspeaker unit 40 and the two second loudspeaker units 42 are held in corresponding recesses of the headrest support 30 in a positive and/or non-positive manner.
  • the first loudspeaker unit 40 and/or the two second loudspeaker units 42 can be clipped into the headrest support 30 .
  • the reference element 20 covers the headrest support 30, the first loudspeaker unit 40 and the two second loudspeaker units 42 on a front side of the headrest 10.
  • the front side of the headrest 10 is used by means of the contact surface 32 to rest a head of an occupant of the vehicle seat 1.
  • the cover 50 covers the headrest support 30, the first speaker unit 40 and the two second speaker units 42 to the rear.
  • the cover 50 covers the headrest support 30, the first loudspeaker unit 40 and the two second loudspeaker units 42 on a side of the headrest 10 facing away from the contact surface 32 .
  • the contact surface 32 of the headrest support 30 is formed by means of a plurality of flexible support elements 34 lying on the inside.
  • the cover material is preferably a stretchable textile, but can also be a layer of leather or imitation leather. If the reference element 20 is made of a stretchable textile, for example, then the reference element 20 has a perforation 22 in a region covering the first loudspeaker unit 40 and the at least one second loudspeaker unit 42, which is formed in particular by a modified mesh type or by holes. If the reference element 20 is made of leather or artificial leather, for example, then the reference element 20 has a perforation 22 in a region covering the first loudspeaker unit 40 and the at least one second loudspeaker unit 42, which is formed in particular by an arrangement of holes. The reference element 20 has a further identically configured perforation 22 in a region laterally covering the second loudspeaker units 42 .
  • the reference element 20 preferably has a reference material and a foam layer.
  • the foam layer is sewn to the cover material. A spot bonding of the foam layer to the cover material distributed over an area is also conceivable.
  • the foam layer is preferably a layer of acoustic foam that is tailored to reduce natural vibrations of the individual components of the headrest 10 .
  • the cover 50 has a perforation 52 in a region covering the first loudspeaker unit 40 on a side facing away from the contact surface 32 .
  • the headrest support 30 has a perforation 36 in a region laterally covering the second loudspeaker units 42 .
  • the perforations 22 of the reference element 20, the perforation 36 of the headrest support 30 and the perforation 52 of the cover 50 serve to make a propagation path of a sound pressure generated by the loudspeaker units 40, 42 as open as possible, so that the sound pressure is approximately unaffected, in particular undamped can escape from the reference element 20 or the cover 50 at the front and rear.
  • the headrest 10 can optionally have a sound wave guide 31A; 31B.
  • 6A shows a sound wave guide 31A according to a first variant in a dot-hatched representation.
  • 6B shows a sound wave guide 31B according to a second variant in a dot-hatched representation.
  • the sound wave guides 31 A; 31 B are integrated into the headrest support 30 in the present case.
  • the sound wave guides 31 A; 31B acoustically separate the first speaker unit 40 from the second speaker units 42 by using the sound wave guides 31A;
  • the sound of the first loudspeaker unit 40 can thus only exit through the reference element 20 to the front and through the cover 50 to the rear.
  • the sound waves of the first loudspeaker unit 40 can essentially only spatially interfere with sound waves of the second loudspeaker units 42 in front of the reference element 20 and behind the cover 50 . This allows the sound quality to be significantly improved and the headrest 10 is also better equipped with active noise suppression, also known as active noise cancellation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

L'invention concerne un appui-tête (10) pour un siège de véhicule (1), ledit appui-tête comportant un support d'appui-tête (30), un premier ensemble haut-parleur (40) et au moins un deuxième ensemble haut-parleur (42), le premier ensemble haut-parleur (40) et ledit au moins un deuxième ensemble haut-parleur (42) étant soutenus par le support d'appui-tête (30), l'appui-tête (10) présentant en outre un élément formant revêtement (20) et un élément de recouvrement (50), l'élément formant revêtement (20) recouvrant le support d'appui-tête (30), le premier ensemble haut-parleur (40) et ledit au moins un deuxième ensemble haut-parleur (42) en direction d'une surface d'appui (32), et l'élément de recouvrement (50) recouvrant le support d'appui-tête (30), le premier ensemble haut-parleur (40) et ledit au moins un deuxième ensemble haut-parleur (42) dans une direction opposée à la surface d'appui (32), l'élément formant revêtement (20), le support d'appui-tête (30) ainsi que l'élément de recouvrement (50) étant conçus de sorte qu'un son produit au moyen du premier ensemble haut-parleur (40) peut être émis à partir de l'appui-tête (10) vers un environnement extérieur de l'appui-tête (10), dans une large mesure sans être atténué. En outre, l'invention concerne un siège de véhicule (1) présentant un dossier (4) équipé d'un appui-tête (10) selon l'invention.
EP22706400.3A 2021-02-16 2022-02-15 Appui-tête pour siège de véhicule et siège de véhicule Pending EP4295583A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102021103644 2021-02-16
DE102021112215.5A DE102021112215A1 (de) 2021-02-16 2021-05-11 Kopfstütze für einen Fahrzeugsitz und Fahrzeugsitz
PCT/IB2022/051320 WO2022175806A1 (fr) 2021-02-16 2022-02-15 Appui-tête pour siège de véhicule et siège de véhicule

Publications (1)

Publication Number Publication Date
EP4295583A1 true EP4295583A1 (fr) 2023-12-27

Family

ID=80461234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22706400.3A Pending EP4295583A1 (fr) 2021-02-16 2022-02-15 Appui-tête pour siège de véhicule et siège de véhicule

Country Status (3)

Country Link
US (1) US20240101009A1 (fr)
EP (1) EP4295583A1 (fr)
WO (1) WO2022175806A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6324294B1 (en) * 1996-09-03 2001-11-27 New Transducers Limited Passenger vehicles incorporating loudspeakers comprising panel-form acoustic radiating elements
DE102005015292B3 (de) 2005-04-01 2006-11-30 Johnson Controls Gmbh Kopfstütze für ein Fahrzeug, Verfahren zur Herstellung einer Kopfstütze und Fahrzeugsitz
US7159938B1 (en) * 2005-07-12 2007-01-09 Tachi-S Co., Ltd. Acoustic structure of seat back
JP6285165B2 (ja) * 2013-11-11 2018-02-28 株式会社デルタツーリング 音響装置及びヘッドレスト
CN107428278B (zh) 2015-03-23 2020-05-19 安道拓卢森堡控股有限公司 一种用于制造包括集成功能模块的靠枕的方法
DE102015212510A1 (de) 2015-07-03 2017-01-05 Johnson Controls Gmbh Kopfstützenkörper und Kopfstütze
GB201721127D0 (en) 2017-12-18 2018-01-31 Pss Belgium Nv Dipole loudspeaker for producing sound at bass frequencies
DE102019206715A1 (de) * 2019-05-09 2020-11-12 Audi Ag Kopfstütze

Also Published As

Publication number Publication date
WO2022175806A1 (fr) 2022-08-25
US20240101009A1 (en) 2024-03-28

Similar Documents

Publication Publication Date Title
DE60318681T2 (de) Schalldämpfungsbaugruppe und teil mit einer wand, die mit der baugruppe bedeckt ist
EP2941366B1 (fr) Piece de mousse, en particulier pour un siege de vehicule et procede et outil pour produire un piece de mousse
DE7508842U (de) Kopfstuetze mit lautsprecher
EP3560215B1 (fr) Cache de haut-parleur multicouche et véhicule
DE102016211404A1 (de) In rahmenträger integrierte subwoofer-baugruppe und verfahren
DE19845730A1 (de) Polsterträger
EP1024053B1 (fr) Véhicule avec installation électroacoustique
DE102019117313A1 (de) Türmodul für fahrzeugtür mit integrierter schalldämmung und dämpfungsanordnung
DE102008015490A1 (de) Kraftfahrzeug mit einem Resonanzvolumen für einen Lautsprecher
EP4072901A1 (fr) Dossier pour siège de véhicule
WO2015086765A1 (fr) Partie de siège et siège de véhicule
DE102021112215A1 (de) Kopfstütze für einen Fahrzeugsitz und Fahrzeugsitz
DE102005047244B3 (de) Lautsprecheranordnung für ein Kraftfahrzeug
WO2022175806A1 (fr) Appui-tête pour siège de véhicule et siège de véhicule
DE102005019204B4 (de) Vorrichtung zur Schallabsorption und -reduktion im Fahrzeuginnenraum
AT510130A2 (de) Innenverkleidungsteil für ein fahrzeugdach
DE102008017084B4 (de) Anordnung eines Audiosystems in einem Fahrzeug
DE102018125350A1 (de) Fahrzeuginnenraumbaugruppe und Kraftfahrzeug
DE102005003994B4 (de) Verfahren zur Herstellung eines akustischen Absorbers
DE102021204590A1 (de) Gestühl mit Aktuatoren zur Beschallung
DE102004002957B4 (de) Lautsprechersystem für Kraftfahrzeuge
DE102009021673B4 (de) Kopfstütze und Sitz mit Kopfstütze
DE102008025840A1 (de) Vorrichtung zur Schalldämpfung und Schalldämmung
DE102018115294A1 (de) Rückenlehne für einen Sitz, insbesondere Fahrzeugsitz, sowie Sitz
DE102008045920A1 (de) Lautsprechersystem für ein Fahrzeug und Fahrzeug mit einem Lautsprechersystem

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

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

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20230918

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 MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)