WO2016066960A1 - Seat back comprising an improved sound-emitting device - Google Patents

Seat back comprising an improved sound-emitting device Download PDF

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Publication number
WO2016066960A1
WO2016066960A1 PCT/FR2015/052906 FR2015052906W WO2016066960A1 WO 2016066960 A1 WO2016066960 A1 WO 2016066960A1 FR 2015052906 W FR2015052906 W FR 2015052906W WO 2016066960 A1 WO2016066960 A1 WO 2016066960A1
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WO
WIPO (PCT)
Prior art keywords
resonator
sound
loudspeakers
seat
seat backrest
Prior art date
Application number
PCT/FR2015/052906
Other languages
French (fr)
Inventor
Christophe Dutot
Jean Christophe CHAMARD
Olivier SANCIER
Patrick Peylaboud
Original Assignee
Peugeot Citroen Automobiles Sa
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 Peugeot Citroen Automobiles Sa filed Critical Peugeot Citroen Automobiles Sa
Priority to EP15797133.4A priority Critical patent/EP3213530B1/en
Publication of WO2016066960A1 publication Critical patent/WO2016066960A1/en

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Classifications

    • 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
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
    • H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm for loudspeaker transducers
    • 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 seat back with a loudspeaker which, thanks to an optimization of their enclosure associated with the backrest of the seat, is able to provide the occupant of the seat concerned with the vehicle with a sound of irreproachable quality.
  • the document FR2713868 describes a headrest comprising an individual sound system of proximity.
  • the headrest comprises a rigid support, a lining mounted on the support, with a bearing portion for the rear of the head of the occupant, and two sound transmission lanes, integrated in said lining of both sides.
  • the sound ducts are narrow and are extended to open opposite the ears of the occupant.
  • FR3001929 discloses a headrest having a refined sound for an occupant, comprising a rigid support covered with a lining for the support of the rear of the head of the occupant and two sound transmission louvers on both sides. other of the rigid support, the rigid support comprising at least one resonance chamber of the sounds emitted by a loudspeaker
  • the present invention aims to overcome these disadvantages by providing a seat back having an acoustic reproduction instead of the occupant able to apply indifferently to a broadcast HiFi or standard non-HiFi embedded in a restricted volume providing a high quality sound .
  • the invention provides a seat back comprising an improved sound system for an occupant, consisting of a rigid enclosure covered with a lining and supporting two sound transmission speakers on each side of the guides of the rods. headrests, the rigid enclosure comprising a resonator disposed between the speakers to reduce distortion at low frequencies and broadcast quality HiFi sound.
  • the resonator is placed between the guides of the head support rods.
  • the resonator is positioned obliquely with respect to the upper surface of the backrest, rising from the front of said backrest.
  • the resonator is positioned obliquely at an angle of 30 degrees to a horizontal plane.
  • the resonator is a vent.
  • the resonator is a passive radiator.
  • the passive radiator is of rectangular shape.
  • the rigid enclosure consists of a central box extended on either side by conduits and by secondary boxes receiving the speakers.
  • the central box has a rectangular section whose length is arranged vertically.
  • the outputs of the loudspeakers are substantially square and are oriented obliquely in the same way to the resonator.
  • the axes of one of the speaker mediators substantially intersect at the center of the resonator.
  • FIG 1 shows a perspective view of a sound device provided with loudspeaker in a headrest according to the prior art
  • FIG. 2 shows a front view of the upper part of an improved seat back according to the invention
  • FIG. 3 shows a view from above of an improved seatback according to the invention
  • FIG. 4 shows a profile view in section A-A of FIG. 2, of an improved sound seat back according to the invention.
  • FIG. 1 shows a perspective view of a head support 1 provided with a loudspeaker according to a prior art.
  • the head restraint 1 considered includes a rigid structure 2 consisting of two boxes 7, 8 assembled to create a central portion 2c made in the form of a rectangle trapezoid shell in profile view.
  • the loudspeakers are placed in the two caissons 7, 8 extending by a sound box inside the headrest 1.
  • the large base being positioned downwards and the small base towards the top of the support 1.
  • the small base is connected to the front and rear faces by radii of curvature.
  • Side edges 2b whose end is inclined outwards of the side walls 2a of the headrest 1, define the width of the headrest 1.
  • the side wall 2a of the headrest 1 is extended by a slight hearing 3 slightly projecting towards the bearing surface 6 of the front of the headrest 1 and extends along a curve at a certain height of the side wall 2a of the head support 1. Consecutively the slot 3a of the hearing 3 is wider at its base than at its summit, ending towards the end of the curve of the hearing 3.
  • the hearing 3 constitutes the exit of the conduit 9 from the box 7, 8. Only the gills 3 appear between the flange hubcap 4 and the central portion of the headrest 1. In this configuration, the speakers transmit the sound from the boxes 7, 8 via the sound box directly to the ears 3 facing the ears of the occupant's head. It is understood that the support surface 6 of the front of the headrest 1 can not be used to place any sound diffuser, since the head of the occupant rests on 1 headrest concerned.
  • Figure 2 shows a front view of the upper part of a seat back 10 comprising an improved sound device according to the invention.
  • the sound device is placed at the level of the guide tubes 12 allowing the passage of the rods of the headrest, not mounted in the figure.
  • the guide tubes 12 of headrest are fixed by appropriate means on the frame 13 of the backrest 10 of the seat and is flush with the lining 10a covering the backrest 10.
  • the guide tubes 12 comprise flanges 13 at their ends, the one is equipped with a system for adjusting the height of the head restraint.
  • the sound reinforcement device is shaped to be placed behind and between the guide tubes 12.
  • a resonator 20 is placed in the axis 21 between the guide tubes 12. This resonator 20 makes it possible to increase the performance of the sound reinforcement device, in particular by reinforcing the response of the speaker in the bass, while improving the efficiency and decreasing distortions,
  • Figure 3 shows a top view of a seat seat 10 improved sound according to the invention.
  • the box 14 integrated in the top of the backrest 10 is extended by the ducts 15 to the loudspeaker 16 whose axes 17 of one of the mediators of the speakers 16 intersect substantially at the center 22 of the resonator 20 on one axis 21.
  • FIG 4 shows a profile view in section AA of Figure 2, an improved seat seat 10 10 of the invention.
  • the sound device is integrated into the top of the backrest 10 of the seat.
  • On the front we see the implantation of the head support guides 12, behind which is placed the box 14.
  • This box 14 which has a rectangular section whose length is oriented upwards.
  • the box is extended by ducts 15 visible in FIGS. 2 and 3 to open into the resonance boxes 18 of the loudspeakers 16.
  • Above the box 14 is fixed the resonator 20 oriented obliquely to the ears of the occupant of the seat.
  • the resonator 20 is positioned obliquely at an angle of 30 degrees with respect to a horizontal plane 19.
  • the loudspeakers 16 have an inclination substantially identical to that of the resonator 20.
  • the device can be implemented in all types of vehicle seat backs, both front seats and rear seats, or additional places.
  • the sound system cooperates with an acoustic chamber disposed in the center of the dashboard of the vehicle, to further enhance the effect of spatialization of sound in the passenger compartment.

Abstract

The invention relates to a seat back (10) comprising an improved sound-emitting device for the seat occupant, formed by a rigid chamber (11) covered by a lining (10a) and supporting two loudspeakers (16) for transmitting sound on each side of the guides (12) for the headrest poles, characterised in that the rigid chamber (11) comprises a resonator (20) disposed between the loudspeakers (16), allowing distortion at low frequencies to be reduced and a quality HiFi sound to be produced.

Description

DOSSIER DE SIEGE COMPORTANT UN DISPOSITIF DE  SEAT BACKREST HAVING A DEVICE FOR
SONORISATION PERFECTIONNE  PERFECTED SOUND
L'invention concerne un dossier de siège muni de haut-parleur qui grâce à une optimisation de leur enceinte associée au dossier du siège sont apte à fournir à l'occupant du siège concerné du véhicule une sonorité de qualité irréprochable. The invention relates to a seat back with a loudspeaker which, thanks to an optimization of their enclosure associated with the backrest of the seat, is able to provide the occupant of the seat concerned with the vehicle with a sound of irreproachable quality.
Actuellement, les services connectés tels que radio, téléphonie, internet, tv dans les véhicules sont prépondérants et croissants. De ce fait, il convient de restituer aux occupants, des services audio de qualité et différenciés dans l'habitacle du véhicule. Dans l'état de l'art, les dispositifs de sonorisation connus sont en général implantés dans des endroits difficiles d'accès et la maintenance demeure problématique. Par exemple, quand les haut-parleurs sont implantés dans des portières, il convient de démonter les panneaux de porte pour y accéder, et ils sont également exposés dans une zone humide et néfaste à leur fonctionnement correct. En outre, le volume de charge acoustique des haut-parleurs est délicat à maîtriser. Au niveau de la qualité sonore, de manière nominale plus les haut-parleurs sont éloignés des oreilles des occupants, plus il faut d'énergie pour une même « puissance perçue » et de plus il est difficile de rendre efficace les traitements de spatialisation. En outre, des sonorisations peuvent être installées dans les appuie têtes. Le document FR2713868 décrit un appuie-tête comprenant une sonorisation individuelle de proximité. L'appuie-tête comporte un support rigide, une garniture montée sur le support, avec une partie d'appui pour l'arrière de la tête de l'occupant, et deux voies de transmission sonore, intégrées dans ladite garniture de part et d'autre du support, et comprenant chacune au moins un transducteur électromagnétique, notamment un haut-parleur, transformant un signal électrique en onde sonore, la garniture ménageant avec la membrane une cavité antérieure substantiellement hermétique, et au moins un conduit sonore positionné par rapport au transducteur, s ' étendant d'une extrémité de réception de l'onde sonore, débouchant de manière substantiellement hermétique dans ladite cavité, à une extrémité d'émission, le conduit ayant une section de passage dont la valeur minimum est inférieure à la surface apparente de la membrane du haut-parleur. Les conduits sonores sont étroits et sont prolongés pour déboucher en vis-à-vis des oreilles de l'occupant. Currently, connected services such as radio, telephony, internet, tv in vehicles are preponderant and growing. Therefore, it is necessary to restore to the occupants, quality audio services and differentiated in the passenger compartment of the vehicle. In the state of the art, known sound devices are generally located in places difficult to access and maintenance remains problematic. For example, when the speakers are located in doors, the door panels must be dismantled to access them, and they are also exposed in a humid area and detrimental to their proper functioning. In addition, the volume of acoustic load of the speakers is difficult to control. In terms of sound quality, the more the speakers are removed from the ears of the occupants, the more energy is needed for the same "perceived power" and also it is difficult to make the spatialization treatments effective. In addition, sound systems can be installed in the headrests. The document FR2713868 describes a headrest comprising an individual sound system of proximity. The headrest comprises a rigid support, a lining mounted on the support, with a bearing portion for the rear of the head of the occupant, and two sound transmission lanes, integrated in said lining of both sides. other of the support, and each comprising at least one electromagnetic transducer, in particular a loudspeaker, transforming an electrical signal into a sound wave, the liner arranging with the membrane a substantially hermetic anterior cavity, and at least one sound duct positioned relative to the transducer, extending from a sound wave receiving end, opening substantially hermetically into said cavity, at an emission end, the conduit having a passage section whose minimum value is less than the apparent surface of the speaker's membrane. The sound ducts are narrow and are extended to open opposite the ears of the occupant.
On comprend bien que ce système audio permet de véhiculer le son compressé dans le conduit, près de l'oreille de l'occupant, mais de fait le son n'est pas de bonne qualité. Par ailleurs, les conduits sont gênants lorsque l'occupant veut tourner la tête ou se pencher d'un côté ou d'un autre du siège. Le document FR3001929 décrit un appuie-tête comportant une sonorité affinée pour un occupant, comprenant un support rigide recouvert d'une garniture pour l'appui de l'arrière de la tête de l'occupant et deux ouïes de transmission sonores de part et d'autres du support rigide, le support rigide comprenant au moins une caisse de résonnance des sons émis par un haut-parleur It is understandable that this audio system can convey the compressed sound in the duct, near the ear of the occupant, but in fact the sound is not good quality. In addition, the ducts are troublesome when the occupant wants turn your head or lean to one side or the other of the seat. FR3001929 discloses a headrest having a refined sound for an occupant, comprising a rigid support covered with a lining for the support of the rear of the head of the occupant and two sound transmission louvers on both sides. other of the rigid support, the rigid support comprising at least one resonance chamber of the sounds emitted by a loudspeaker
La présente invention vise à pallier ces inconvénients en proposant un dossier de siège possédant une restitution acoustique à la place de l'occupant apte à s'appliquer indifféremment à une diffusion HiFi ou standard non HiFi embarqué dans un volume restreint procurant un son de haute qualité .  The present invention aims to overcome these disadvantages by providing a seat back having an acoustic reproduction instead of the occupant able to apply indifferently to a broadcast HiFi or standard non-HiFi embedded in a restricted volume providing a high quality sound .
A cet effet l'invention propose un dossier de siège comportant une sonorisation perfectionnée pour un occupant, constituée d'une enceinte rigide recouvert d'une garniture et supportant deux haut- parleurs de transmission sonores de part et d'autres des guides des tiges d' appuie tête, l'enceinte rigide comprenant un résonateur disposé entre les haut-parleurs permettant de réduire la distorsion aux basses fréquences et de diffuser un son HiFi de qualité. Avantageusement, le résonateur est placé entre les guides des tiges d'appui tête. For this purpose the invention provides a seat back comprising an improved sound system for an occupant, consisting of a rigid enclosure covered with a lining and supporting two sound transmission speakers on each side of the guides of the rods. headrests, the rigid enclosure comprising a resonator disposed between the speakers to reduce distortion at low frequencies and broadcast quality HiFi sound. Advantageously, the resonator is placed between the guides of the head support rods.
Selon une variante, le résonateur est positionné obliquement par rapport à la surface supérieure du dossier, s 'élevant depuis l'avant dudit dossier. According to a variant, the resonator is positioned obliquely with respect to the upper surface of the backrest, rising from the front of said backrest.
De manière optionnelle, le résonateur est positionné obliquement d'un angle de 30 degrés par rapport à un plan horizontal. Optionally, the resonator is positioned obliquely at an angle of 30 degrees to a horizontal plane.
Selon une variante, le résonateur est un évent . According to one variant, the resonator is a vent.
Avantageusement, le résonateur est un radiateur passif . Advantageously, the resonator is a passive radiator.
Selon une autre variante, le radiateur passif est de forme rectangulaire. According to another variant, the passive radiator is of rectangular shape.
De façon avantageuse, l'enceinte rigide est constituée d'un caisson central prolongée de part et d'autre par des conduits et par des caissons secondaires recevant les hauts parleurs. Advantageously, the rigid enclosure consists of a central box extended on either side by conduits and by secondary boxes receiving the speakers.
Selon une variante, le caisson central a une section rectangulaire dont sa longueur est disposée verticalement. Selon une autre variante, les sorties des hauts parleurs sont sensiblement carrés et sont orientés obliquement de façon identique au résonateur. Selon un mode de réalisation préféré de l'invention, les axes de l'une des médiatrices des hauts parleurs se croisent sensiblement au centre du résonateur. L'invention sera bien comprise et d'autres aspects et avantages apparaîtront clairement à la lecture de la description qui suit, donnée à titre d'exemple par rapport aux figures annexées sur lesquelles : According to a variant, the central box has a rectangular section whose length is arranged vertically. According to another variant, the outputs of the loudspeakers are substantially square and are oriented obliquely in the same way to the resonator. According to a preferred embodiment of the invention, the axes of one of the speaker mediators substantially intersect at the center of the resonator. The invention will be clearly understood and other aspects and advantages will become clear from reading the description which follows, given by way of example with respect to the appended figures in which:
-la figure 1 présente une vue en perspective d'un dispositif de sonorisation muni de haut-parleur dans un appuie-tête suivant l'art antérieur ; FIG 1 shows a perspective view of a sound device provided with loudspeaker in a headrest according to the prior art;
-la figure 2 présente une vue de face de la partie supérieure d'un dossier de siège à sonorité perfectionnée suivant l'invention ; FIG. 2 shows a front view of the upper part of an improved seat back according to the invention;
-la figure 3 présente une vue de dessus d'un dossier de siège à sonorité perfectionnée suivant 1 ' invention ;  FIG. 3 shows a view from above of an improved seatback according to the invention;
-la figure 4 présente une vue de profil en coupe A-A de la figure 2, d'un dossier de siège à sonorité perfectionnée suivant l'invention.  FIG. 4 shows a profile view in section A-A of FIG. 2, of an improved sound seat back according to the invention.
La figure 1 présente une vue en perspective d'un appui tête 1 muni de haut-parleur suivant un art antérieur. L'appuie-tête 1 considéré comprend une structure rigide 2 constituée de deux caissons 7, 8 assemblés pour créer une partie centrale 2c réalisée sous la forme d'une coque en trapèze rectangle en vue de profil. Les haut-parleurs sont placés dans les deux caissons 7, 8 se prolongeant par une caisse de résonnance à l'intérieur de l'appuie tête 1. La grande base étant positionnée vers le bas et la petite base vers le haut de l'appuie-tête 1. La petite base est raccordé les faces avant et arrière par des rayons de courbure. Des bordures latérales 2b dont la terminaison est inclinée vers l'extérieur des parois latérales 2a de l'appuie-tête 1, délimitent la largeur de l'appuie-tête 1. La paroi latérale 2a de 1 ' appuie- tête 1 est prolongée par une ouïe 3 de faible épaisseur légèrement en saillie vers la surface d'appui 6 de l'avant de l'appuie-tête 1 et se prolonge suivant une courbe sur une certaine hauteur de la paroi latérale 2a de l'appui tête 1. Consécutivement la fente 3a de l'ouïe 3 est plus large à sa base qu'à son sommet, se terminant en direction de l'extrémité de la courbe de l'ouïe 3. L'ouïe 3 constitue la sortie du conduit 9 provenant du caisson 7, 8. Seuls, les ouïes 3 apparaissent entre le flasque enjoliveur 4 et la partie centrale de l'appuie-tête 1. Dans cette configuration, les haut-parleurs transmettent le son depuis les caissons 7, 8 par l'intermédiaire de la caisse de résonnance directement vers les ouïes 3 orientées vers les oreilles de la tête de l'occupant. On comprend bien que la surface d'appui 6 de l'avant de l'appuie-tête 1 ne peut être utilisée pour placer un quelconque diffuseur de sons, puisque la tête de l'occupant repose sur 1 ' appuie-tête concerné . FIG. 1 shows a perspective view of a head support 1 provided with a loudspeaker according to a prior art. The head restraint 1 considered includes a rigid structure 2 consisting of two boxes 7, 8 assembled to create a central portion 2c made in the form of a rectangle trapezoid shell in profile view. The loudspeakers are placed in the two caissons 7, 8 extending by a sound box inside the headrest 1. The large base being positioned downwards and the small base towards the top of the support 1. The small base is connected to the front and rear faces by radii of curvature. Side edges 2b whose end is inclined outwards of the side walls 2a of the headrest 1, define the width of the headrest 1. The side wall 2a of the headrest 1 is extended by a slight hearing 3 slightly projecting towards the bearing surface 6 of the front of the headrest 1 and extends along a curve at a certain height of the side wall 2a of the head support 1. Consecutively the slot 3a of the hearing 3 is wider at its base than at its summit, ending towards the end of the curve of the hearing 3. The hearing 3 constitutes the exit of the conduit 9 from the box 7, 8. Only the gills 3 appear between the flange hubcap 4 and the central portion of the headrest 1. In this configuration, the speakers transmit the sound from the boxes 7, 8 via the sound box directly to the ears 3 facing the ears of the occupant's head. It is understood that the support surface 6 of the front of the headrest 1 can not be used to place any sound diffuser, since the head of the occupant rests on 1 headrest concerned.
La figure 2 présente une vue de face de la partie supérieure d'un dossier 10 de siège comportant un dispositif de sonorisation perfectionné suivant l'invention. Le dispositif de sonorisation est placé au niveau des tubes guides 12 permettant le passage des tiges de l'appuie- tête, non monté sur la figure. Les tubes guides 12 d ' appuie-tête sont fixés par un moyen appropriés sur l'armature 13 du dossier 10 du siège et affleure sur la garniture 10a recouvrant le dossier 10. Les tubes guides 12 comportent des collerettes 13 à leurs extrémités dont l'une est munie d'un système de réglage de la hauteur de l'appuie-tête. Le dispositif de sonorisation est conformé pour se placer derrière et entre les tubes guides 12. Il est constitué d'une enceinte rigide 11 formée d'un caisson 14 se prolongeant de part et d'autre par des conduits 15 et des caissons secondaires 18 débouchant sur des hauts parleurs 16 orientés judicieusement de manière que le son soit dirigé vers l'oreille de l'occupant du véhicule. De cette manière, les haut-parleurs 16 sont placés à chacune des extrémités du haut du dossier. Afin, d'améliorer les performances du dispositif de sonorisation. Un résonateur 20 est placé dans l'axe 21 entre les tubes guides 12. Ce résonateur 20 permet d'augmenter les performances du dispositif de sonorisation notamment en renforçant la réponse de l'enceinte dans les basses, tout en améliorant le rendement et en diminuant les distorsions, Figure 2 shows a front view of the upper part of a seat back 10 comprising an improved sound device according to the invention. The sound device is placed at the level of the guide tubes 12 allowing the passage of the rods of the headrest, not mounted in the figure. The guide tubes 12 of headrest are fixed by appropriate means on the frame 13 of the backrest 10 of the seat and is flush with the lining 10a covering the backrest 10. The guide tubes 12 comprise flanges 13 at their ends, the one is equipped with a system for adjusting the height of the head restraint. The sound reinforcement device is shaped to be placed behind and between the guide tubes 12. It consists of a rigid enclosure 11 formed of a box 14 extending on either side by conduits 15 and secondary boxes 18 opening on speakers 16 judiciously oriented so that the sound is directed towards the ear of the occupant of the vehicle. In this way, the loudspeakers 16 are placed at each end of the top of the folder. In order to improve the performance of the sound device. A resonator 20 is placed in the axis 21 between the guide tubes 12. This resonator 20 makes it possible to increase the performance of the sound reinforcement device, in particular by reinforcing the response of the speaker in the bass, while improving the efficiency and decreasing distortions,
La figure 3 présente une vue de dessus d'un dossier 10 de siège à sonorisation perfectionnée suivant l'invention. Le caisson 14 intégré dans le haut du dossier 10 est prolongé par les conduits 15 jusqu'au haut-parleur 16 dont les axes 17 de l'une des médiatrices des hauts parleurs 16 se croisent sensiblement au centre 22 du résonateur 20 sur 1 ' axe 21.  Figure 3 shows a top view of a seat seat 10 improved sound according to the invention. The box 14 integrated in the top of the backrest 10 is extended by the ducts 15 to the loudspeaker 16 whose axes 17 of one of the mediators of the speakers 16 intersect substantially at the center 22 of the resonator 20 on one axis 21.
La figure 4 présente une vue de profil en coupe A-A de la figure 2, d'un dossier 10 de siège à sonorité perfectionnée suivant l'invention. Le dispositif de sonorisation est intégré dans le haut du dossier 10 du siège. Sur l'avant, on voit l'implantation des guides d' appuie tête 12, derrière lesquelles est placé le caisson 14. Ce caisson 14 qui a une section rectangulaire dont la longueur est orientée vers le haut. Le caisson est prolongé par des conduits 15 visible figure 2 et 3 pour déboucher dans les caisses de résonnance 18 des hauts parleurs 16. Au-dessus du caisson 14 est fixé le résonateur 20 orienté obliquement vers les oreilles de l'occupant du siège. Figure 4 shows a profile view in section AA of Figure 2, an improved seat seat 10 10 of the invention. The sound device is integrated into the top of the backrest 10 of the seat. On the front, we see the implantation of the head support guides 12, behind which is placed the box 14. This box 14 which has a rectangular section whose length is oriented upwards. The box is extended by ducts 15 visible in FIGS. 2 and 3 to open into the resonance boxes 18 of the loudspeakers 16. Above the box 14 is fixed the resonator 20 oriented obliquely to the ears of the occupant of the seat.
Idéalement, le résonateur 20 est positionné obliquement d'un angle de 30 degrés par rapport à un plan horizontal 19. Avantageusement, les hauts parleurs 16 ont une inclinaison sensiblement identique à celle du résonateur 20.  Ideally, the resonator 20 is positioned obliquely at an angle of 30 degrees with respect to a horizontal plane 19. Advantageously, the loudspeakers 16 have an inclination substantially identical to that of the resonator 20.
Il va de soi, que le dispositif peut être implanté dans tous les types de dossiers de siège de véhicule, aussi bien aux places avant qu'au places arrières, voire à des places additionnelles .  It goes without saying that the device can be implemented in all types of vehicle seat backs, both front seats and rear seats, or additional places.
De manière avantageuse, le dispositif de sonorisation coopère avec une enceinte acoustique disposée au centre de la planche de bord du véhicule, pour renforcer encore l'effet de spatialisation du son dans l'habitacle.  Advantageously, the sound system cooperates with an acoustic chamber disposed in the center of the dashboard of the vehicle, to further enhance the effect of spatialization of sound in the passenger compartment.

Claims

REVENDICATIONS
Dossier de siège (10) comportant une sonorisation perfectionnée pour un occupant, constituée d'une enceinte rigide (11) recouvert d'une garniture (10a) et supportant deux haut-parleurs (16) de transmission sonores de part et d'autres des guides (12) des tiges d' appuie tête caractérisé en ce que l'enceinte rigide (11) comprend un résonateur (20) disposé entre les haut-parleurs (16) permettant de réduire la distorsion aux basses fréquences et de diffuser un son HIFI de qualité . Seatback (10) comprising an improved sound system for an occupant, consisting of a rigid enclosure (11) covered with a lining (10a) and supporting two loudspeakers (16) of sound transmission on both sides of the guides (12) of the headrest rods characterized in that the rigid enclosure (11) comprises a resonator (20) disposed between the loudspeakers (16) to reduce the distortion at low frequencies and to broadcast a sound HIFI quality .
Dossier de siège (1) selon la revendication 1, caractérisé en ce que le résonateur (20) est placé entre les guides des tiges d'appui tête. Seat backrest (1) according to claim 1, characterized in that the resonator (20) is placed between the guides of the head support rods.
Dossier de siège (1) selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le résonateur (20) est positionné obliquement par rapport à la surface supérieure du dossier (10), s 'élevant depuis l'avant dudit dossier (10). Seat back (1) according to any one of claims 1 or 2, characterized in that the resonator (20) is positioned obliquely with respect to the upper surface of the backrest (10), rising from the front of said folder (10).
Dossier de siège (1) selon la revendication 3, caractérisé en ce que le résonateur (20) est positionné obliquement d'un angle de 30 degrés par rapport à un plan horizontal (19) . Seat backrest (1) according to claim 3, characterized in that the resonator (20) is positioned obliquely at an angle of 30 degrees to a horizontal plane (19).
Dossier de siège (1) selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le résonateur (20) est un évent . Seat backrest (1) according to any one of claims 1 to 4, characterized in that the resonator (20) is a vent.
Dossier de siège (1) selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le résonateur (20) est un radiateur passif . Seat backrest (1) according to any one of claims 1 to 5, characterized in that the resonator (20) is a passive radiator.
Dossier de siège (1) selon la revendication 6, caractérisé en ce que le radiateur passif (20) est de forme rectangulaire. Seat backrest (1) according to claim 6, characterized in that the passive radiator (20) is rectangular in shape.
Dossier de siège (1) selon la revendication 1 caractérisé en ce que l'enceinte rigide (11) est constituée d'un caisson central (14) prolongée de part et d'autre par des conduits (15) et par des caissons secondaires (18) recevant les hauts parleurs (18). Seat backrest (1) according to claim 1 characterized in that the rigid enclosure (11) consists of a central box (14) extended on both sides by ducts (15) and by secondary boxes ( 18) receiving the loudspeakers (18).
Dossier de siège (1) selon la revendication 8, caractérisé en ce que le caisson central (14) a une section rectangulaire dont sa longueur est disposée verticalement. Dossier de siège (1) selon l'une quelconque des revendications 1 ou 8, caractérisé en ce que les sorties des hauts parleurs (16) sont sensiblement carrées et sont orientées obliquement de façon identique au résonateur (20) . Seat back (1) according to claim 8, characterized in that the central box (14) has a rectangular section whose length is arranged vertically. Seatback (1) according to any one of claims 1 or 8, characterized in that the outputs of the loudspeakers (16) are substantially square and are oriented obliquely identical to the resonator (20).
Dossier de siège (1) selon la revendication 10, caractérisé en ce que les axes (17) de l'une des médiatrices des hauts parleurs (16) se croisent sensiblement au centre du résonateur (20). Seat backrest (1) according to claim 10, characterized in that the axes (17) of one of the mediators of the speakers (16) intersect substantially in the center of the resonator (20).
PCT/FR2015/052906 2014-10-29 2015-10-28 Seat back comprising an improved sound-emitting device WO2016066960A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15797133.4A EP3213530B1 (en) 2014-10-29 2015-10-28 Seat back comprising an improved sound-emitting device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1460376 2014-10-29
FR1460376A FR3027855B1 (en) 2014-10-29 2014-10-29 SEAT BACKREST COMPRISING AN IMPROVED AUDIO DEVICE

Publications (1)

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WO2016066960A1 true WO2016066960A1 (en) 2016-05-06

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PCT/FR2015/052906 WO2016066960A1 (en) 2014-10-29 2015-10-28 Seat back comprising an improved sound-emitting device

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EP (1) EP3213530B1 (en)
FR (1) FR3027855B1 (en)
WO (1) WO2016066960A1 (en)

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Publication number Priority date Publication date Assignee Title
CN110049901A (en) * 2016-10-28 2019-07-23 伯斯有限公司 Backrest loudspeaker with acoustical passage

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US4638884A (en) * 1985-07-11 1987-01-27 Willis S. Cole Chambered headrest mounting for stereophonic loudspeakers
JPS6335205A (en) * 1986-07-30 1988-02-15 マツダ株式会社 Speaker built-in seat of car
FR2620293A1 (en) * 1987-08-20 1989-03-10 Cailleau Michel Headpiece acoustic enclosure for automobile
FR2713868A1 (en) 1993-12-13 1995-06-16 Lancon Paul Headrest with integral loudspeakers providing stereo sound
US20030152245A1 (en) * 2002-02-08 2003-08-14 Pioneer Corporation Chair equipped with a speaker
US20140219492A1 (en) * 2013-02-06 2014-08-07 John R. Pelliccio Providing Speakers in a Vehicle Seat
FR3001929A1 (en) 2013-02-11 2014-08-15 Peugeot Citroen Automobiles Sa Head-rest for use with sound system of e.g. TV, to provide sound to occupant of vehicle, has sound holes transmitting sounds on both sides of rigid support, where support includes resonance chamber for sounds emitted by loudspeaker

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4638884A (en) * 1985-07-11 1987-01-27 Willis S. Cole Chambered headrest mounting for stereophonic loudspeakers
JPS6335205A (en) * 1986-07-30 1988-02-15 マツダ株式会社 Speaker built-in seat of car
FR2620293A1 (en) * 1987-08-20 1989-03-10 Cailleau Michel Headpiece acoustic enclosure for automobile
FR2713868A1 (en) 1993-12-13 1995-06-16 Lancon Paul Headrest with integral loudspeakers providing stereo sound
US20030152245A1 (en) * 2002-02-08 2003-08-14 Pioneer Corporation Chair equipped with a speaker
US20140219492A1 (en) * 2013-02-06 2014-08-07 John R. Pelliccio Providing Speakers in a Vehicle Seat
FR3001929A1 (en) 2013-02-11 2014-08-15 Peugeot Citroen Automobiles Sa Head-rest for use with sound system of e.g. TV, to provide sound to occupant of vehicle, has sound holes transmitting sounds on both sides of rigid support, where support includes resonance chamber for sounds emitted by loudspeaker

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110049901A (en) * 2016-10-28 2019-07-23 伯斯有限公司 Backrest loudspeaker with acoustical passage
CN110049901B (en) * 2016-10-28 2022-09-06 伯斯有限公司 Back speaker with acoustic channel
CN115284990A (en) * 2016-10-28 2022-11-04 伯斯有限公司 Back speaker with acoustic channel

Also Published As

Publication number Publication date
EP3213530A1 (en) 2017-09-06
FR3027855B1 (en) 2018-07-13
FR3027855A1 (en) 2016-05-06
EP3213530B1 (en) 2018-12-12

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