EP3213530A1 - Dossier de siège comportant un dispositif de sonorisation perfectionne - Google Patents
Dossier de siège comportant un dispositif de sonorisation perfectionneInfo
- Publication number
- EP3213530A1 EP3213530A1 EP15797133.4A EP15797133A EP3213530A1 EP 3213530 A1 EP3213530 A1 EP 3213530A1 EP 15797133 A EP15797133 A EP 15797133A EP 3213530 A1 EP3213530 A1 EP 3213530A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- resonator
- sound
- loudspeakers
- seat
- seat backrest
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 2
- 210000005069 ears Anatomy 0.000 description 5
- 239000012528 membrane Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000002816 gill Anatomy 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
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.
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1460376A FR3027855B1 (fr) | 2014-10-29 | 2014-10-29 | Dossier de siege comportant un dispositif de sonorisation perfectionne |
PCT/FR2015/052906 WO2016066960A1 (fr) | 2014-10-29 | 2015-10-28 | Dossier de siège comportant un dispositif de sonorisation perfectionne |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3213530A1 true EP3213530A1 (fr) | 2017-09-06 |
EP3213530B1 EP3213530B1 (fr) | 2018-12-12 |
Family
ID=52423867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15797133.4A Active EP3213530B1 (fr) | 2014-10-29 | 2015-10-28 | Dossier de siège comportant un dispositif de sonorisation perfectionné |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3213530B1 (fr) |
FR (1) | FR3027855B1 (fr) |
WO (1) | WO2016066960A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3532344B1 (fr) * | 2016-10-28 | 2022-03-02 | Bose Corporation | Haut-parleurs de dossier comprenant des canaux acoustiques |
Family Cites Families (7)
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 |
JPH0775579B2 (ja) * | 1986-07-30 | 1995-08-16 | マツダ株式会社 | 自動車のシ−ト内蔵スピ−カ |
FR2620293A1 (fr) * | 1987-08-20 | 1989-03-10 | Cailleau Michel | Enceinte accoustique tetiere pour automobile |
FR2713868B1 (fr) * | 1993-12-13 | 1997-05-09 | Paul Lancon | Tétière ou appuie-tête comprenant une sonorisation individuelle de proximité. |
JP3880865B2 (ja) * | 2002-02-08 | 2007-02-14 | パイオニア株式会社 | スピーカを備えた椅子 |
US8913777B2 (en) * | 2013-02-06 | 2014-12-16 | Bose Corporation | Providing speakers in a vehicle seat |
FR3001929A1 (fr) * | 2013-02-11 | 2014-08-15 | Peugeot Citroen Automobiles Sa | Appuie-tete comportant une sonorisation affinee |
-
2014
- 2014-10-29 FR FR1460376A patent/FR3027855B1/fr not_active Expired - Fee Related
-
2015
- 2015-10-28 EP EP15797133.4A patent/EP3213530B1/fr active Active
- 2015-10-28 WO PCT/FR2015/052906 patent/WO2016066960A1/fr active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2016066960A1 (fr) | 2016-05-06 |
FR3027855A1 (fr) | 2016-05-06 |
EP3213530B1 (fr) | 2018-12-12 |
FR3027855B1 (fr) | 2018-07-13 |
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