JP2576091Y2 - Sound generator for vehicles - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound generator for vehicles mounted on vehicles such as passenger cars, trucks and buses.

[0002]

2. Description of the Related Art
Some vehicles of this type are equipped with a sound generating device to alert the driver when operating a turn signal indicator or traveling backward. In such a sounding device, the sounding body is housed in a box-shaped case together with a control board of the sounding body and attached to a vehicle in consideration of waterproofing and dustproofing. In this case, the waterproofing and dustproofing are performed. It is preferable that the case body has an airtight structure in order to enhance the functions such as the above, but in order to efficiently emit the sound emitted from the sounding body to the outside, it is necessary to open a sound emission window in the case body. Therefore, in the conventional case, as shown in FIGS. 9 and 10, the case body 9 is composed of a case body 10 in which a sound emission window 10a is opened and a lid body 11, and the sounding body 3 is incorporated in the case body 10. Substrate 12
And sound is emitted from the sound emission window 10a to the outside by covering the sound emission window 10a with the lid 11, and the sound emission window 10a is made small with respect to intrusion of water, dust, and the like. And so on. However, in this case, since the sound emission window is merely a hole opened in the case main body 10 in an open state, water or dust may invade from there, which may cause the malfunction. In addition, there is a problem that the durability is poor. In addition, since the sound emission window 10a is formed in the case body 10, the lid 11 must be completely sealed so as not to cause a gap between the cover body 11 and the case body 10 to prevent unnecessary sound leakage. The workability of the assembly work was poor.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has been devised for the purpose of providing a vehicle sound generating device capable of eliminating these drawbacks. In a vehicle sound emitting device configured by disposing a board in which a sounding body is incorporated in a case body, the case body has an opening formed on one side surface for inserting the board in which the sounding body is incorporated. And a box-shaped case main body having a guide groove formed on the inner surface for slidingly inserting the inserted board in the back, and a lid for closing the opening, while the lid has a sound. The sound emission window is formed, and the sound emission window is formed by arranging a plurality of labyrinth slits communicating in and out of the case in a labyrinth.

According to the present invention, the waterproof and dustproof effect of the sound emission window formed in the case body can be enhanced by this structure.

[0005]

Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a sound generating device mounted on a vehicle, and the sound generating device 1 is connected to a shift lever (not shown), and is operated by an electronic device to alert an operator when the lever is operated to a reverse position. The sounding device 1 is for generating a sound. The sounding device 1 includes a case body 2 and a sounding body 3 provided therein. The case body 2 has a box-shaped case body 4 having an opening 4a on the side that becomes a lower surface when attached to a vehicle and having a deep ceiling surface 4b.
And a lid 5 for closing the opening on the lower surface side. From this opening 4a, an electric component 7 such as a condenser and the like necessary for sounding the sounding body 3 and the coupler 8 together with the sounding body 3 are formed. The inserted substrate 6 is inserted and incorporated. A guide groove 4c for slidingly fitting the inserted substrate 6 is formed on the inner surface of the case body 4. The case body 2 is formed by closing the case opening 4a with the cover body 5 in a state where the substrate 6 is housed in the case main body 4, and the case opening 4a is provided with an engaging member for locking and holding the cover body 5. Stop pawls 4d are further formed. The case body 4 is provided with a locking portion 4e for integrally locking the vehicle-side mounting bracket on the outer surface, while the sounding body 3 is integrally formed on the front end of the substrate 6. Built in,
When the substrate 6 is provided inside the case body 2, the sounding body 3 is arranged in a deep part close to the case ceiling surface 4b.

On the other hand, the lid 5 is formed of a plate-like body, and the lid 5 has a coupler window 5a for the coupler 8 and a sound emission window 5b. Among these, the sound emission window 5b is formed by a grid (crosspiece) bent in a crank shape.
By adjoining a plurality of 5c, a plurality of labyrinth slits A that communicate the inside and outside of the case body 2 in a labyrinth are formed in parallel.

[0007] In the embodiment of the present invention configured as described above, the sounding device 1 uses the lid 5 to slide the case 6 on which the sounding body 3 is attached to the case main body 4 while using the lid 5 to open the case. 4a will be formed by closing
This will be attached to the vehicle. In this case, the sound generated from the sounding body 3 is emitted outside through the sound emission window 5b formed in the lid 5 instead of the case body 4 as in the related art. As a result, assuming that the lid 5 is attached to the case body 4 not in a completely sealed state but with a gap, the sound leaking to the outside through the gap is the same as that emitted to the outside through the sound emission window 5b. In other words, it is not necessary to attach the lid 5 to the case body 4 in a completely sealed state, and the workability of the assembling work is significantly improved.

Further, since the maze-shaped slit A is formed in the sound emission window 5b, it is possible to prevent foreign matter such as water and dust from entering the case body 2 as much as possible. In addition, it is possible to increase the opening area of the sound emission window 5b to increase the sound emission ability. And in this one,
When mounted on a vehicle, the sound emission window 5b faces the lower surface, which is advantageous in that the penetration of water or the like is more thoroughly prevented.

Further, the sounding body 3 incorporated in the case body in this manner is disposed at a deep position close to the ceiling surface 4b side of the case body 4, and as a result, the sound emitted from the sounding body 3 Is resonating in the case body 2 and the sound emission window 5b
Therefore, the sound emitted from the sound emission window 5b to the outside is given directivity, and the sound quality is improved and the sound is improved.

Incidentally, the present invention is not limited to the above-described embodiment. In order to make the sound generated from the sounding body 3 more efficiently emitted, as in the second embodiment shown in FIG. The reflection efficiency of the sound emitted from the sounding body 3 may be improved by forming the ceiling-side corner of the case body 4 facing the sounding body 3 with an inclined tapered surface 4f, as shown in FIG. As in the third embodiment, a substrate 13 such as a hybrid IC (hybrid IC) is provided on the side of the sounding body 3.
May be provided so as to partition the case main body 4 so as to reduce the dispersion of the sound, thereby improving the efficiency of sound emission from the sound generating device.

[0011]

[Effects] In summary, since the present invention is configured as described above, the sound generated from the sounding body passes through the sound emission window formed in the lid instead of the case body as in the conventional case. As a result, the lid is not completely sealed and attached to the case body, and there is a gap, and even if sound leaks from this gap to the outside, the leaked sound is not removed. This is the same as that discharged to the outside through the discharge window, and there is no need to attach the lid body to the case body in a completely sealed state, so that the workability of the assembling work is remarkably improved.

Moreover, the sound emission window is formed as a maze-like slit, so that foreign matters such as water and dust are prevented from entering the case as much as possible. It can be increased to increase the external sound emission ability.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a vehicle sound generating device.

FIG. 2 is a sectional view taken along line XX in FIG.

FIG. 3 is a side view of a case main body.

FIG. 4 is a front view of a case body.

FIG. 5 is a sectional view taken along line YY in FIG. 3;

FIG. 6 is a front view of the lid.

FIG. 7 is a side view of the lid.

8 is a sectional view taken along the line ZZ in FIG.

FIG. 9 is a perspective view showing a conventional example of a vehicle sound generating device.

FIG. 10 is a cross-sectional view showing a conventional example of a sound generating device for a vehicle.

FIG. 11 is a cross-sectional view showing a second embodiment of the vehicle sound generating device.

FIG. 12 is a front view showing a third embodiment of the vehicle sound generating device.

[Explanation of symbols]

 Reference Signs List 1 sound generating device 4 case main body 4a case opening 4b ceiling surface 4c guide groove 4d locking claw 5 lid 5a coupler window 5b sound emission window 5c lattice 6 substrate 8 coupler A maze slit

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-61-271146 (JP, A) JP-A 55-111297 (JP, U) JP-A 61-187755 (JP, U) 44685 (JP, U) Japanese Utility Model Hei 4-22520 (JP, Y2) Utility model registration 248861 (JP, Y2) (58) Fields investigated (Int. Cl. ⁶ , DB name) B60R 11/02 B60Q 5/00 630 G10K 9/22

Claims (2)

(57) [Scope of request for utility model registration] 1. A sound generating device for a vehicle configured by disposing a board in which a sounding body is incorporated in a box-shaped case body,
The case body has a box in which an opening for inserting a board in which the sounding body is incorporated is formed on one side surface, and a guide groove for slidingly inserting the inserted board into the back is formed on the inner side face. A case body and a lid for closing the opening, and a sound emission window is formed in the lid, and the sound emission window is connected to the inside and outside of the case in a maze. A sound generating device for a vehicle, wherein a plurality of slits are formed in parallel. 2. The case body includes a box-shaped case body having an open lower surface side and a deep ceiling surface, and a lid closing the lower surface side opening. The sound generating device for a vehicle according to claim 1, wherein the sound generating device is incorporated in a substrate so as to be close to a ceiling surface side of the vehicle.