JP3397965B2 - Speaker box for electronic keyboard instrument - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure and a mounting method of a mounting part of a speaker for a high range in a speaker box in an electronic keyboard instrument having a speaker device built therein.

[0002]

2. Description of the Related Art Many electronic keyboard musical instruments have a speaker device built in the musical instrument body in order to provide an electronic keyboard musical instrument that is small in size, low in price, and easy to handle. In such a structure, since the sound in the middle and low range has little directivity, there is no significant problem with respect to the mounting position of the middle and low range speaker.

However, since the sound in the high frequency range has a strong directivity, it is necessary to make the speaker for the high frequency range directly face the performer in order to convey a good sound to the performer and the listener, which leads to cost reduction. Various contrivances have been made to the mounting structure and mounting method of the speaker device in order to obtain good quality sound.

FIG. 6 is an external view showing an example of the arrangement of speaker devices attached to a conventional electronic keyboard instrument. In the figure, 1 is a keyboard body, 2 is a keyboard, 3 is a speaker for high range, 5 is a speaker box to which a speaker for middle and low range is attached, and 6 is a mounting bracket to which a speaker for high range is attached.

As shown in the figure, in the conventional electronic keyboard musical instrument, in order to transmit high-quality treble to the performers and listeners, the speaker box 5 for the mid-low range and the mount for the treble range speaker 3 are separated. The mounting position and the mounting direction of the high frequency range speaker 3 are adjustable.

FIG. 7 is a view for explaining an example of the structure of the mounting bracket 6 to which the conventional high-range speaker 3 is mounted. In the structure shown in the figure, the angle and height of the mounting bracket 6 are manufactured in an optimum size and shape according to the type of musical instrument at the time of manufacturing, and the mounting bracket 6 is mounted when it is screwed to the shelf plate. By adjusting the position, it was adjusted to obtain a good sound under various structural constraints.

The advantage of such a conventional method of mounting a high-frequency speaker is to provide excellent high-frequency sound in various electronic keyboard musical instruments by preparing parts according to respective structural conditions. It is possible.

However, in such a conventional mounting method, as shown in FIG. 7, the mounting bracket 6 for mounting the speaker 3 for the high range, screws, washers, and the like require a large number of parts and types, and moreover, mounting It is necessary to adjust the position at the time of
It was a cause of high cost and needed improvement.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and provides a high-quality sound in a high range to a performer, and has a small number of types of attachment parts and few points for assembling a speaker device. An object of the present invention is to provide a low-priced speaker box for mounting a high-frequency speaker of an electronic keyboard musical instrument that can be easily manufactured.

[0010]

The object of the present invention is to solve the problems shown in FIG.
As shown in 3, 4, and 5, in a speaker box 5 of an electronic keyboard instrument having a built-in speaker device, a speaker mounting recess 3 ′ having two slopes A 7 and B 8 is formed, and the high-range speaker 3 is This is solved by a speaker box of an electronic keyboard instrument that is configured to be mounted inside the slope 7 (or 8) on the side farther from the player in the recess.

Another object of the present invention is to provide two slopes forming a part of the recess 3'as the speaker mounting portion for the high range, and to mount the speaker box 5 on the left and right sides, the two slopes are provided. This is advantageously solved by a speaker box of an electronic keyboard instrument in which each treble speaker 3 can be attached to each speaker box by using the slope 7 (or 8) on the side farther from the player.

[0012]

[0013]

[0014]

[0015]

[0016]

The simple operation of attaching the high-frequency speaker 3 to the slope of the speaker formed on the mounting portion of the high-frequency speaker 3 provided in the speaker box 5 of the present invention with, for example, a double-sided adhesive tape. Is set so that a high-quality high-range sound can be obtained.

As a result, the work of mounting the high-frequency range speaker 3 is simplified, and the number and types of parts for mounting are reduced,
Moreover, since the performance sound from the high-frequency range speaker 3 is directed to the player without requiring delicate adjustment, good sound quality can be provided.

Further, since the slopes A7 and B8 to which the above-mentioned high-frequency range speaker 3 is attached are provided in the concave surface which constitutes the concave portion provided in the speaker box 5, it is possible to save space and to reduce the size of the electronic keyboard instrument. Can be realized.

Further, as shown in FIG. 1, the mounting slopes A7 and B8 are provided so as to face each other so that the speaker box 5 is flipped in the right and left direction when the speaker box 5 is mounted on the electronic keyboard instrument body as shown in FIG. By using one of the mounting slopes for mounting a high-range speaker with a simple operation, the speaker box 5 having the same shape can be used as a speaker box 5 having a high-range speaker on both the left and right sides. Becomes

Since the sound in the middle and low range has a low directivity and the position of the middle and low range speaker 4 does not matter, the speaker box 5 of the present invention can be installed in the middle and low range speaker 4 (see FIG. 3). ), The mounting of the speaker 4 for the middle and low range is simplified, and further labor saving and cost reduction are possible.

Further, by using a resin for molding the speaker box 5, it is possible to inexpensively perform integral molding, realize mass production of the speaker box 5, and further reduce the cost. Moreover, it is easy to adjust the partial thickness, and it becomes easy to maintain the strength according to the part of the speaker box 5.

As described above, according to the present invention, it is possible to minimize the required number of parts and the working process without requiring a large number of fittings 6 and mounting parts such as screws. The mold for the box 5 only needs to be one type, and the manufacturing cost can be reduced.

Moreover, as is clear from FIG. 2, since the high-frequency range speaker 3 is installed toward the player, the sound of the high-frequency component having a strong directivity is heard toward the player. Since it is easily propagated, sound can be emitted without impairing the sound quality.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In the description of this embodiment, the same parts as those in the conventional example are designated by the same reference numerals.

FIG. 2 is an external view for explaining the mounting state of the speaker box of the electronic keyboard instrument of the present invention.

In the figure, 1 is a keyboard body, 2 is a keyboard, 3 is a speaker for high range, 4 is a speaker for middle and low range,
Reference numeral 5 is a speaker box. It should be noted that the two speaker boxes 5 shown in the figure differ only in the positions of the slopes used for mounting the high-frequency range speakers 3, and the speaker boxes arranged on the left and right have the same structure.

As shown in FIG. 1, in the present invention, slopes A7 and B8 are used as the slopes for mounting the high frequency range speaker 3.
By providing two of them, it is possible to use the speaker box 5 of the same shape by changing the direction of the speaker box 5 and mounting it.

FIG. 1 is a diagram for explaining an example of the configuration of the speaker box 5 of the present invention. As shown in the figure, a concave portion is provided in a portion of the speaker box 5 of the present invention to which the high frequency speaker 3 is attached, and slopes A7, B8 for attaching the high frequency speaker 3 are formed in a part of the concave portion. There is.

Therefore, the shape of the slopes A7 and B8 is such that the speaker box 5 is attached to a predetermined position of the main body of the electronic keyboard instrument, and the high-range speaker having a predetermined shape has slopes A7 and B8.
Alternatively, when the speaker is fixed to B8, the center line of the speaker is designed in advance so that the center line of the speaker is directed to the performer.
Is set in accordance with the size of the high-frequency range speaker 3.

As shown in FIG. 2, the slope B8 is formed by reversing the mounting direction of the speaker box 5 of the present invention to the main body of the electronic keyboard instrument, and the speaker box 5 having the same shape as the speaker box 5 is used as the speaker box 5 for the right speaker. When using, the slope is the mounting slope of the high-frequency speaker 3, and the factors to be considered when determining the shape and size of the slope are the same as in the case of the slope A7.

Further, the size of the entire recess is such that, when the high-range speaker 3 is attached, the structure of the musical instrument main body and the position with the player so that the sound emitted from the speaker can go straight to the player. It is decided in consideration of the relationship.

Speaker box 5 of speaker 3 for the high range
To attach to, for example, fix with double-sided tape,
Alternatively, there is a method of molding the speaker in the speaker box 5 so that the speaker can be inserted freely, and any method may be used.

It is to be noted that the speaker 4 for middle and low range is shown in the figure as an example of the positional relationship of the installation locations of the speaker 3 for high range and the speaker 4 for middle and low range in the speaker box 5 of the present invention. This is because.

As described above, according to the present invention, the speaker can be correctly attached by a very simple operation of fixing the speaker box 5 in which the speaker is fixed to a predetermined portion to a predetermined position of the electronic keyboard instrument. As a result, it becomes possible to save labor of parts cost and man-hours, and it is possible to provide a high-quality electronic keyboard musical instrument at a low price.

FIG. 3 is a top view for explaining the structure of the speaker box 5 of the present invention. As shown in the figure, in the present embodiment, the mid-low range speaker mounting portion 4'is provided adjacent to the high-range speaker mounting slopes A7 and B8, and the mid-low range speaker 4 is fixed with screws. Is configured.

As a result, the space of the speaker box 5 can be saved. The reason why the high-frequency range speaker mounting portion 3'is not provided with a screw is that the high-frequency range speaker 3 is attached by a double-sided tape or fitted freely.

FIG. 4 is a rear view showing an example of the speaker box 5 of the present invention. In the figure, the speaker box 5 has a structure in which it is fixed to the instrument body by eight screws.

The slopes and depths of the slopes A7 and B8 for mounting the speaker for the high range shown in the view AA are as follows.
It is determined by the structure of the musical instrument body, the size of the high frequency range speaker 3, and the like.

FIG. 5 is a perspective view for explaining the structure of the slope of the speaker box 5 of the present invention for mounting the high-frequency range speaker 3.

The mounting slopes A7 and B8 are surfaces on which the left and right high-range speakers 3 are mounted, and the pitch between the slopes A7 and B8 is high in consideration of the positional relationship between the speakers and the performer. It is set so that people can go straight.

As a result, when the speaker box 5 is attached, by reversing the direction of the box 5,
The same speaker box 5 can be used for both the left and right speakers, and the speaker box 5 in which the high-frequency range speaker 3 is arranged can be attached.

The speaker box 5 of this embodiment is
A concave surface is formed downward from the upper surface of the speaker box 5, two mounting slopes are provided on the concave surface from the perspective of the player, and the treble speaker 3 is mounted on the slope far from the player. When the speaker is mounted, it is possible to solve the problem of the present invention while saving space when mounting the speaker.

[0043]

As described above, according to the present invention, the speaker of the electronic keyboard instrument capable of exhibiting sufficient strength and function while reducing the number of components for mounting the speaker and the number of working steps without the disadvantages of the prior art. Box 5 can be provided.

The speakers 3, 4, A7, B8 and the speaker box 5 are integrally assembled by an appropriate means such as a double-sided adhesive tape or screws. At this time, the mounting method using bolts or screws, the size of the housing structure, the thickness of the resin, etc. should be appropriately changed depending on the size, weight, etc. of the speaker.

[0046]

As described above in detail, according to the present invention, a good treble sound can be obtained by a simple work of mounting the treble range speaker on the speaker mounting slope formed in the speaker box. The required number of parts for mounting the speaker is small, and the mounting work is easy, so that a low-cost electronic keyboard musical instrument can be provided.

Further, if the concave surface is used as the mounting slope of the speaker formed in the speaker box, the space required for mounting the speaker for the high frequency range is small, and the size can be further reduced.

[Brief description of drawings]

FIG. 1 is a diagram illustrating an example of a configuration of a speaker box of an electronic keyboard instrument according to the present invention.

FIG. 2 is an external view illustrating an example of a mounted state of the speaker device of the electronic keyboard instrument according to the present invention.

FIG. 3 is a top view illustrating the structure of the speaker box of the electronic keyboard instrument according to the present invention.

FIG. 4 is a rear view illustrating the structure of the speaker box of the electronic keyboard instrument according to the present invention.

FIG. 5 is a perspective view illustrating a structure of a high-frequency speaker mounting portion of the speaker box of the electronic keyboard instrument according to the present invention.

FIG. 6 is an external view illustrating a mounting state of a speaker device of a conventional electronic keyboard instrument.

FIG. 7 is a diagram illustrating an example of a mounting bracket used for mounting a high-range speaker of a conventional electronic keyboard instrument.

[Explanation of symbols]

1 keyboard body 2 keyboard 3 High range speaker 3'High range speaker mounting part 4 Speakers for mid-low range 4'mid and low range speaker mount 5 speaker box 6 Mounting bracket 7 Slope A 8 slope B

Front page continuation (58) Fields surveyed (Int.Cl. ⁷ , DB name) G10H 1/32 H04R 1/02 102

Claims (2)

(57) [Claims] 1. A speaker box of an electronic keyboard instrument having a built-in speaker device, wherein a speaker mounting recess having two slopes is formed, and a high-range speaker is mounted inside the slope of the recess farther from the player. A speaker box for electronic keyboard musical instruments that is characterized by being used. 2. The two slopes forming a part of the concave portion as the high-frequency speaker mounting portion are provided, and when the speaker box is mounted on the left and right sides, one of the two slopes that is farther from the player. The speaker box for an electronic keyboard musical instrument according to claim 1, wherein each treble speaker can be attached to each speaker box by using the slope.