WO2014162474A1 - 車両用音出力装置 - Google Patents
車両用音出力装置 Download PDFInfo
- Publication number
- WO2014162474A1 WO2014162474A1 PCT/JP2013/059975 JP2013059975W WO2014162474A1 WO 2014162474 A1 WO2014162474 A1 WO 2014162474A1 JP 2013059975 W JP2013059975 W JP 2013059975W WO 2014162474 A1 WO2014162474 A1 WO 2014162474A1
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- WO
- WIPO (PCT)
- Prior art keywords
- sound
- vehicle
- sound path
- speaker device
- output device
- Prior art date
Links
- 230000003014 reinforcing effect Effects 0.000 claims description 22
- 230000002787 reinforcement Effects 0.000 abstract description 43
- 238000005192 partition Methods 0.000 description 29
- 239000006096 absorbing agent Substances 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q5/00—Arrangement or adaptation of acoustic signal devices
- B60Q5/005—Arrangement or adaptation of acoustic signal devices automatically actuated
- B60Q5/008—Arrangement or adaptation of acoustic signal devices automatically actuated for signaling silent vehicles, e.g. for warning that a hybrid or electric vehicle is approaching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
- B60R11/0217—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for loud-speakers
-
- 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
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/22—Methods or devices for transmitting, conducting or directing sound for conducting sound through hollow pipes, e.g. speaking tubes
-
- 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
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
- G10K9/22—Mountings; Casings
-
- 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
- H04R1/20—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
- H04R1/2811—Enclosures comprising vibrating or resonating arrangements 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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
- B60R2011/004—Arrangements for holding or mounting articles, not otherwise provided for characterised by position outside the vehicle
-
- 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 present invention relates to a vehicle sound output device.
- Patent Document 1 proposes a vehicle approach notification device that emits an approach notification sound toward the front of a vehicle from sounding means provided at the center lower portion in the vehicle width direction of the front end portion of the vehicle.
- Patent Document 1 the technique proposed in Patent Document 1 is costly because it is necessary to newly install sounding means in the vehicle, and further, due to the structure of the sounding means, the vehicle is more sensitive to people outside the vehicle. There is a problem that it is difficult to emit an approach notification sound (for example, engine sound) with an appropriate sound pressure both in the distance and in the vicinity.
- an approach notification sound for example, engine sound
- the present invention is an example of a problem to deal with such problems. That is, the present invention provides, for example, a vehicle sound output device that can effectively generate a vehicle approach notification sound to a person who exists far away or in the vicinity of the vehicle while minimizing cost. It is an object.
- a vehicle sound output device is a vehicle sound output device that radiates sound to the outside of a vehicle, a reinforcing member that reinforces a bumper of the vehicle, and a speaker.
- a sound path member that covers a rear surface side of the reinforcing member and forms a sound path of the speaker device between the device and the sound path so that the sound path has a folded portion. A member is provided.
- FIG. 2 is a rear view of the bumper reinforcement shown in FIG. 1.
- FIGS. 2A and 2B are a cross-sectional view taken along line AA and a cross-sectional view taken along line BB in FIG.
- FIGS. 2A and 2B are a sectional view taken along line CC and a line DD in FIG.
- It is a front side perspective view of the sound path member shown in FIG. It is a figure which shows the relationship between a vehicle and a listening position.
- (A) is a graph which shows the frequency characteristic of the sound pressure of the speaker apparatus in each listening position shown in FIG. 7,
- (B) is a partial enlarged graph of (A).
- (A) is a rear view of the vehicle sound output device according to the second embodiment, and (B) is a sectional view taken along line EE of (A).
- (A) is a rear view of the sound output device for a vehicle in the third embodiment,
- (B) is a sectional view taken along line FF of (A)
- (C) is a bumper reinforcement and sound shown in (A). It is a schematic perspective view of the sound path formed by the road member.
- (A) is a rear view of the sound output device for a vehicle in the fourth embodiment
- (B) is a sectional view taken along the line GG of (A)
- (C) is a bumper reinforcement and sound shown in (A). It is a schematic perspective view of the sound path formed by the road member.
- a sound output device for a vehicle covers a reinforcing member that reinforces a bumper of a vehicle, a speaker device, and a rear surface side of the reinforcing member, and forms a sound path of the speaker device between the reinforcing member. And the sound path member is provided so that the sound path has a folded portion.
- the sound path of a desired length can be provided without being limited by the length of the reinforcing member, and is output from the speaker device to a person existing outside the vehicle. It is possible to effectively generate a sound of approaching.
- the sound path may have an odd number of folding parts. Thereby, the sound passing through the sound path can be returned to the speaker device side.
- the sound radiated from the front surface of the speaker device may be radiated from the opening on the front surface of the reinforcing member.
- the sound radiated from the rear surface of the speaker device may be radiated from the opening through the sound path.
- the sound radiated from the front and rear surfaces of the speaker device can be output to the outside from one opening.
- the sound path length can be adjusted to increase the sound pressure of the sound of the desired frequency radiated from the front and rear surfaces of the speaker device that is output from the opening, and the sound can be heard in the same way from any listening position. Can do.
- the sound path member may be attached to the driver seat on the rear surface of the reinforcing member. Thereby, sound can be radiated from the driver's seat side.
- the speaker device may be attached to the reinforcing member or may be attached to the sound path member.
- a sound path member may be provided so that the sound path has a straight line part, and the cross-sectional areas of the folded part and the straight line part may be substantially equal. Thereby, the sound radiated from the speaker device can smoothly travel along the sound path.
- a vehicle sound output device 1 shown in FIGS. 1 to 6 is a device that is attached to a vehicle 2 and radiates an approach notification sound (sound) to the outside of the vehicle 2 to notify a pedestrian or the like of the approach of the vehicle 2.
- the traveling direction of the vehicle 2 is defined as the front direction
- the backward direction is defined as the rear direction
- the traveling direction side is defined as the front surface side
- the backward direction side is defined as the rear surface side.
- the vehicle sound output device 1 covers the rear side of the bumper reinforcement 3 as a reinforcing member that reinforces the front bumper of the vehicle 2, the speaker device 4, and the bumper reinforcement 3. And a sound path member 6 that forms a sound path 5 (FIG. 4) of the speaker device 4 and an air seal (not shown).
- the bumper reinforcement 3 is provided by pressing a metal plate, and is provided in a long shape in the left-right direction of the vehicle 2.
- the bumper reinforcement 3 is attached to the rear side of the bumper absorber 7 (FIG. 1) as an impact absorbing member.
- the bumper reinforcement 3 includes a reinforce main body 31 that is long in the left-right direction, and a reinforce side wall that is erected from both ends of the reinforce main body 31 in the rearward direction. And a reinforcement flange portion 33 erected in the vertical direction from the end portion of the reinforcement side wall portion 32, and a reinforcement recess 34 is formed along the longitudinal direction when viewed from the rear surface side.
- the bumper absorber 7 attached to the front side of the bumper reinforcement 3 is also provided with an opening 7 ⁇ / b> A that emits an approach notification sound output from the speaker device 4 described later.
- the opening 7 ⁇ / b> A of the bumper absorber 7 is provided to face the opening 31 ⁇ / b> A of the bumper reinforcement 3.
- the speaker device 4 is a speaker that outputs an approach notification sound, and for example, artificially generates a driving sound of the vehicle 2 as an approach notification sound.
- the speaker device 4 is attached to a sound path member 6 described later, and is accommodated in a sound path 5 formed between the bumper reinforcement 3 and the sound path member 6. Further, the speaker device 4 is provided such that the front face thereof faces the opening 31A and the opening 7A provided in the bumper reinforcement 3 and the bumper absorber 7.
- the sound path member 6 is made of, for example, resin, and forms a long sound path 5 in the left-right direction between the bumper reinforcement 3.
- the sound path member 6 includes a plate-like sound path member main body 61 that covers the rear opening of the reinforcement recess 34, a partition wall 62 that partitions the sound path 5 up and down, The first side wall portion 63 and the second side wall portion 64 that block the longitudinal opening of the road 5, the housing portion 65 that houses the speaker device 4, the lid portion 66, and the reinforcing rib 67 are provided.
- the sound path member main body 61 is formed in a long plate shape.
- the sound path member main body 61 is provided shorter than the length of the bumper reinforcement 3 in the longitudinal direction, and is provided on the passenger seat side of the bumper reinforcement 3.
- the partition wall 62 is erected from the sound path member main body 61 toward the front surface side, and extends in the longitudinal direction from the center of the sound path member main body 61 in the vertical direction.
- the partition wall 62 divides the sound path 5 in the vertical direction, and is partitioned into first and second straight portions 51A and 51B that are linear in the longitudinal direction.
- the second side wall portion 64 is erected from the sound path member main body portion 61 toward the front surface side and extends in the vertical direction.
- the second side wall portion 64 is provided on the driver seat side of the partition wall 62 so as to be spaced apart, whereby the first straight portion 51A and the second driver portion side of the second straight portion 51B communicate with each other, and the sound path 5 is formed to fold 5 from the first straight part 51A to the second straight part 51B.
- the partition wall 62 and the 2nd side wall part 64 are provided so that the cross-sectional area of the said 1st linear part 51A, the 2nd linear part 51B, and the folding
- the second side wall portion 64 is formed with a concave portion 64A that is recessed on the side away from the speaker device 4 in the longitudinal direction, and the concave portion 64A is provided with an R.
- R is also attached to the end face of the partition wall 62 facing the recess 64A.
- the housing portion 65 includes a peripheral wall 65 ⁇ / b> A erected from the periphery of the mounting hole 61 ⁇ / b> A of the speaker device 4 provided in the sound path member main body portion 61, and the diaphragm of the speaker device 4. And an opening 65B exposing the.
- the speaker device 4 is accommodated in a space surrounded by the peripheral wall 65A. Thereby, the speaker device 4 is accommodated in the sound path 5 which is a space between the bumper reinforcement 3 and the sound path member 6.
- the peripheral wall 65A is provided with an opening 65A-1 communicating with the first straight portion 51A.
- the lid portion 66 is formed in a plate shape, and covers and closes the attachment hole 61A provided in the sound path member main body portion 61 from the rear side, as shown in FIG.
- the lid 66 is provided with a screw insertion hole 66A.
- the speaker device 4 is accommodated in the accommodation portion 65 from the attachment hole 61A of the sound path member 6, and then the lid portion 66 is disposed so as to close the attachment hole 61A.
- the speaker device 4 is attached to the sound path member 6 by inserting the screw N into the screw insertion hole 66A of the lid portion 66 and screwing into a screw hole (not shown) provided in the speaker device 4. Can do.
- the reinforcing rib 67 is a rib for reinforcing the sound path member 6, and is provided so as to protrude from the sound path member main body 61 toward the front surface side and extend along the longitudinal direction as shown in FIG. To do.
- the reinforcing ribs 67 are respectively provided above and below the partition wall 62.
- the air seal (not shown) is provided to close the gap between the bumper reinforcement 3 and the sound path member 6, for example, between the partition wall 62 and the bumper reinforcement 3, or between the first side wall 63 and the second side wall. It is sandwiched between the section 64 and the bumper reinforcement 3.
- the sound radiated from the front surface of the speaker device 4 is radiated to the outside of the vehicle 2 from the opening 31A of the bumper reinforcement 3 and the opening 7A of the bumper absorber 7 as indicated by an arrow Y1.
- the sound radiated from the rear surface of the speaker device 4 enters the first straight portion 51A through the opening 65A-1 of the housing portion 65 as shown by the arrow Y2, It advances toward the driver's seat along the straight part 51 ⁇ / b> A of 1 and moves away from the speaker device 4.
- the sound path 5 having a desired length can be provided without being limited by the length in the longitudinal direction of the bumper reinforcement 3 by providing the folding portion 52 on the sound path 5.
- An approach notification sound output from the speaker device 4 can be effectively emitted to a person existing outside the vehicle 2.
- the sound path 5 has an odd number of folded portions 52 (one in the above embodiment). Thereby, the sound which passes along the sound path 5 can be returned to the speaker apparatus 4 side.
- the sound radiated from the front surface of the speaker device 4 is radiated from the opening 31 ⁇ / b> A on the front surface of the bumper reinforcement 3, and the sound radiated from the rear surface of the speaker device 4 travels along the sound path 5.
- the sound radiated from the front surface and the rear surface of the speaker device 4 can be output to the outside through one opening 31A.
- the sound pressure of the sound of a desired frequency radiated from the front surface and the rear surface of the speaker device 4 output from the opening 31 ⁇ / b> A can be increased. But it can sound the same way.
- the present inventors manufactured the above-described vehicle sound output device 1, and as shown in FIG.
- the frequency characteristics of pressure and background noise were measured.
- the results are shown in FIG. As is clear from the figure, it was confirmed that almost the same frequency characteristics could be obtained even if the listening position was changed, and that the same sound was heard from any listening position.
- the cross-sectional areas of the first straight portion 51A, the second straight portion 51B, and the folded portion 52 of the sound path 5 are substantially equal. Therefore, the sound radiated from the speaker device 4 can travel along the sound path 5 smoothly.
- the concave portion 64A of the second side wall portion 64 and the end face of the partition wall 62 facing the concave portion 64A are provided with R.
- returning part 52 is provided along a curve, and the sound radiated
- the sound radiated from the rear surface of the speaker device 4 is the sound path 5 in the order of the first straight portion 51A, the turning portion 52, and the second straight portion 51B provided on the lower side.
- the present invention is not limited to this.
- the upper second straight line portion 51B, the turn-back portion 52, and the first straight line portion 51A may be passed in this order.
- the sound path member 6 is attached to the passenger seat side of the bumper reinforcement 3, but the present invention is not limited to this. You may make it attach to a driver's seat side. Also, depending on the country, the driver's seat may be on the right side or the left side, but the embodiment of the present application is not limited to that.
- the speaker device 4 is attached to the sound path member 6, but the present invention is not limited to this.
- the speaker device 4 may be attached to the bumper reinforcement 3.
- FIG. 9A the sound path member 6 is shown in cross section.
- the difference in the second embodiment is the shape of the sound path 5.
- only one folding portion 52 is provided, but in the second embodiment, three first to third folding portions 52A to 52C are provided.
- one partition wall 62 is provided, but in the second embodiment, three partition walls 62 are provided and the sound path 5 is divided into four in the vertical direction.
- the sound path 5 is partitioned into four first to fourth straight portions 51A to 51D that are linear in the longitudinal direction.
- the central partition wall 62 is provided continuously to the second side wall portion 64.
- a third side wall 68A for connecting the end portions of the uppermost and lowermost partition walls 62 on the speaker device 4 side is provided.
- the central partition wall 62 is separated from the third side wall portion 68A.
- the first folded portion 52A communicates the ends of the first straight portion 51A and the second straight portion 51B on the side away from the speaker device 4, and the second folded portion 52B The ends of the straight portion 51B and the third straight portion 51C on the speaker device 4 side are communicated, and the third folded portion 52C is separated from the speaker device 4 of the third straight portion 51C and the fourth straight portion 51D. Communicate with each other.
- the sound emitted from the rear surface of the speaker device 4 is, as indicated by the arrows, the first straight portion 51A, the first folded portion 52A, the second straight portion 51B, and the second Proceeding in the order of the folded portion 52B, the third straight portion 51C, the third folded portion 52C, and the fourth straight portion 51D, it is radiated to the outside of the vehicle 2 from the opening 31A of the bumper reinforcement 3 and the opening 7A of the bumper absorber 7. . Therefore, the sound path 5 can be further lengthened. Further, the length of the sound path member 6 can be shortened to reduce the weight or reduce the cost.
- a third embodiment will be described with reference to FIG.
- the difference in the third embodiment is the shape of the sound path 5.
- the sound path 5 is vertically divided into two straight portions.
- the first to fourth straight portions 51A to 51D are arranged in the vertical direction and the front-rear direction. Partitioning.
- the sound path member 6 is erected on the rear side from the sound path member main body 61, and the first partition wall 62A that partitions the sound path 5 in the vertical direction, and the sound path member main body portion. 61, and a second partition wall 62B that partitions the sound path 5 in the front-rear direction.
- the second partition wall 62B is erected from the second side wall portion 64 toward the speaker device 4 and intersects the first partition wall 62A.
- the first side wall 63 is provided apart from the second partition wall 62B.
- the first folded portion 52A connects the end portions of the first straight portion 51A and the second straight portion 51B on the side away from the speaker device 4,
- the second folded portion 52B connects the end portions of the second straight portion 51B and the third straight portion 51C on the speaker device 4 side
- the third folded portion 52C includes the third straight portion 51C and the fourth straight portion 51C. The side away from the speaker device 4 of the linear portion 51D is communicated.
- the sound emitted from the rear surface of the speaker device 4 is the first straight line provided on the front surface and the lower side as shown by the arrows in FIG. 10 (B) and FIG. 10 (C).
- 51A, first folded portion 52A, front surface, second linear portion 51B provided on the upper side, second folded portion 52B, rear surface, third linear portion 51C provided on the upper side, third folded portion 52C, the rear surface, and the fourth straight portion 51D provided on the lower side proceed in this order to radiate to the outside of the vehicle 2 from the opening 31A of the bumper reinforcement 3 and the opening 7A of the bumper absorber 7.
- the difference in the fourth embodiment is the shape of the sound path 5.
- the sound path 5 is partitioned into two straight portions in the vertical direction, but in the fourth embodiment, the first to fourth straight portions 51A to 51D are partitioned in the front-rear direction.
- three second partition walls 62B arranged in parallel with the sound path member main body 61 are provided.
- the second partition wall 62B is supported by a pair of standing walls 69 standing from the sound path member main body 61 toward the front side.
- the second partition wall 62B at the center in the front-rear direction is erected from the second side wall portion 64 toward the speaker device 4 side.
- the front and rear second partition walls 62B are provided such that both ends in the longitudinal direction are spaced from the first and second side wall portions 63 and 64.
- a fourth side wall 68B is provided to connect ends of the front and rear second partition walls 62B on the speaker device 4 side.
- the central second partition wall 62B is provided apart from the fourth side wall 68B.
- the first folded portion 52A communicates the ends of the first straight portion 51A and the second straight portion 51B on the side away from the speaker device 4, and the second folded portion 52B The ends of the straight portion 51B and the third straight portion 51C on the speaker device 4 side are communicated, and the third folded portion 52C is separated from the speaker device 4 of the third straight portion 51C and the fourth straight portion 51D. Communicate with each other.
- the sound emitted from the rear surface of the speaker device 4 is, as shown by the arrows in FIGS. 10B and 10C, the first straight portion 51A, the first folded portion 52A, The first straight portion 51B, the second folded portion 52B, the third straight portion 51C, the third folded portion 52C, and the fourth straight portion 51D proceed in this order, and the bumper reinforcement 3 opening 31A and the bumper absorber 7 opening 7A.
- the bumper reinforcement 3 opening 31A and the bumper absorber 7 opening 7A To the outside of the vehicle 2.
- an odd number of folding portions 52 are provided, and the sound output from the front and rear surfaces of the speaker device 4 is radiated from one opening 31A provided on the front surface of the bumper reinforcement 3,
- the present invention is not limited to this.
- an even number may be provided, and the sound output from the front and rear surfaces of the speaker device 4 may be emitted from different openings.
- the sound output from the speaker device 4 is radiated from the opening 31A provided on the front surface of the bumper reinforcement 3, but the present invention is not limited to this. Sound may be emitted from the longitudinal opening of the sound path 5.
- the bumper reinforcement 3 is for reinforcing the front bumper and may be for reinforcing the rear bumper.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
Description
以下、本発明の車両用音出力装置の第1実施例を図1~図6に基づいて説明する。図1~図6に示す車両用音出力装置1は、車両2に取り付けられ、車両2外部に接近告知音(音)を放射することにより、歩行者などに車両2の接近を知らせる装置である。なお、以下、車両2の進行方向を前方向、後退方向を後方向とし、進行方向側を前面側、後退方向側を後面側と定義して説明する。
次に、第2実施例について図9を参照して説明する。なお、図9(A)は音道部材6については、断面で示している。第2実施例で異なる点は、音道5の形状である。第1実施例では、折返部52を1箇所だけ設けていたが、第2実施例では、3箇所の第1~第3の折返部52A~52Cを設けている。
次に、第3実施例について図10を参照して説明する。第3実施例で異なる点は、音道5の形状である。第1の実施例では、折返部52を1箇所だけ設けていたが、第3実施例では、3箇所の第1~第3の折返部52A~52Cを設けている。また、第1実施例では、音道5を上下に2つの直線部に仕切られていたが、第3実施例では、上下方向及び前後方向に4つの第1~第4直線部51A~51Dに仕切っている。
次に、第4実施例について図11を参照して説明する。第4実施例で異なる点は、音道5の形状である。第1実施例では、音道5を上下方向に2つの直線部に仕切っていたが、第4実施例では、前後方向に4つの第1~第4の直線部51A~51Dに仕切っている。詳しくは、第4実施例では、図11(B)に示すように、音道部材本体部61と平行に配置される3つの第2の仕切壁62Bを設けている。この第2の仕切壁62Bは、音道部材本体部61から前面側に向かって立設する一対の立壁69によって支持されている。
2 車両
3 バンパリインフォース(補強部材)
4 スピーカ装置
5 音道
6 音道部材
51A 第1の直線部(直線部)
51B 第2の直線部(直線部)
51C 第3の直線部(直線部)
51D 第4の直線部(直線部)
52 折返部
52A 折返部
52B 折返部
52C 折返部
31A 開口
Claims (8)
- 車両の外部に音を放射する車両用音出力装置であって、
スピーカ装置と、
前記車両のバンパを補強する補強部材の後面側を覆い、前記補強部材との間に前記スピーカ装置の音道を形成する音道部材と、を備え、
前記音道が折返部を有するように、前記音道部材が設けられている
ことを特徴とする車両用音出力装置。 - 前記音道は、前記折返部を奇数個有する
ことを特徴とする請求項1に記載の車両用音出力装置。 - 前記スピーカ装置の前面から放射される音は、前記補強部材の前面の開口から放射されることを特徴とする請求項2に記載の車両用音出力装置。
- 前記スピーカ装置の後面から放射される音は、前記音道を通り前記開口から放射されることを特徴とする請求項3に記載の車両用音出力装置。
- 前記音道部材は、前記補強部材の後面の運転席側に取り付けられていることを特徴とする請求項4に記載の車両用音出力装置。
- 前記スピーカ装置は、前記補強部材に取り付けられていることを特徴とする請求項4に記載の車両用音出力装置。
- 前記スピーカ装置は、前記音道部材に取り付けられていることを特徴とする請求項4に記載の車両用音出力装置。
- 前記音道が直線部を有するように、前記音道部材が設けられ、
前記折返部と前記直線部との断面積は略等しいことを特徴とする請求項4に記載の車両用音出力装置。
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US14/781,345 US9764687B2 (en) | 2013-04-01 | 2013-04-01 | Sound output device for vehicle |
PCT/JP2013/059975 WO2014162474A1 (ja) | 2013-04-01 | 2013-04-01 | 車両用音出力装置 |
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TWI583202B (zh) * | 2015-11-03 | 2017-05-11 | 宏碁股份有限公司 | 電子裝置 |
KR102383224B1 (ko) * | 2016-12-06 | 2022-04-05 | 현대자동차 주식회사 | 연료전지 배출 수소 농도 저감구조 |
USD834470S1 (en) * | 2017-04-10 | 2018-11-27 | Volvo Lastvagnar Ab | Bumper component |
USD838634S1 (en) * | 2017-04-10 | 2019-01-22 | Volvo Lastvagnar Ab | Bumper component |
US11627394B2 (en) * | 2019-12-31 | 2023-04-11 | Harman International Industries, Incorporated | Loudspeaker assembly for providing audio external to a vehicle |
KR20220017032A (ko) * | 2020-08-03 | 2022-02-11 | 현대자동차주식회사 | 차량의 전자식 사운드 제너레이터 장착 구조 |
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JPS62185154U (ja) * | 1986-05-19 | 1987-11-25 | ||
JPH0335840U (ja) * | 1989-08-10 | 1991-04-08 | ||
WO2011141982A1 (ja) * | 2010-05-10 | 2011-11-17 | パイオニア株式会社 | 音出力装置及び音出力方法 |
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JP2008168676A (ja) | 2007-01-09 | 2008-07-24 | Toyota Motor Corp | 車両接近告知装置 |
US8204245B2 (en) * | 2007-10-31 | 2012-06-19 | Lund Industries, Inc. | Bumper with speaker |
JP2013244895A (ja) * | 2012-05-28 | 2013-12-09 | Denso Corp | 車両存在通報装置 |
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JPS62185154U (ja) * | 1986-05-19 | 1987-11-25 | ||
JPH0335840U (ja) * | 1989-08-10 | 1991-04-08 | ||
WO2011141982A1 (ja) * | 2010-05-10 | 2011-11-17 | パイオニア株式会社 | 音出力装置及び音出力方法 |
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JPWO2014162474A1 (ja) | 2017-02-16 |
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