JPH052958Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to the exterior structure of an electronic musical instrument.

[Summary of the idea]

In this invention, the exterior of the electronic musical instrument is composed of an upper main body, a lower main body, and a connecting means that detachably connects both ends with a space provided, and a sound emitting port is provided in the lower main body approximately upward. By forming a speaker housing section for attaching speakers facing towards the player, the performance sound of the electronic musical instrument is spread in all directions, including the position of the player's ears, so that the sound of the performance can be heard uniformly over a wide range. At the same time, by significantly reducing the packaging volume, transportation costs are reduced, and the number of parts is reduced to facilitate packaging and assembly.

[Conventional technology]

As shown in FIGS. 5 and 6, in a conventional keyboard electronic musical instrument such as a general electronic organ, the exterior 20 is in the form of an integrated box (case), and the inside of the front panel 21 has a A speaker 22 was attached, and a large number of small holes 24 were also formed in the back plate 23.

Therefore, as shown by the arrows in FIG. 6, the performance sound of the electronic musical instrument is emitted primarily from the speaker 22 toward the front, and also toward the rear through the small hole 24.

[Problem that the invention attempts to solve]

However, with such conventional electronic musical instruments, the best acoustic performance can be heard from a position directly facing the electronic musical instrument, as can be seen from Figure 6.
Since the position of the player P's ears is deviated from the direction in which the sound is emitted, there is a problem in that the performer P cannot sufficiently confirm the performance sound.

Further, the exterior structure of such conventional electronic musical instruments has been either an integral box-like structure or only partially removable, resulting in a large volume when packaged, resulting in high transportation costs. Therefore, if the device can be disassembled into small pieces, there will be a problem that the number of parts will increase, which will require more time and effort during packaging and assembly.

This idea was devised in view of the above problems, and aims to make it possible to hear a homogeneous performance sound over a wide range, to significantly reduce the volume of packaging, and to reduce the number of parts. The purpose is to make packaging and assembly easier.

[Means for solving problems]

Therefore, this idea improves the exterior structure of electronic musical instruments.
An upper main body equipped with a keyboard, a lower main body equipped with a speaker storage section in which a pedal keyboard, an expression pedal, and a speaker are installed with the sound emitting port facing substantially upward; The connecting member has an open space and is removably connected to the upper body, and the upper end portion is removably connected to the upper main body, and the lower end portion is removably connected to the lower main body.

[Effect]

With the exterior structure of the electronic musical instrument of this invention configured in this manner, the speaker is housed within the lower body which is connected to the lower end of the connecting member. Since the speaker is located near the floor surface and the sound outlet of the speaker is directed generally upward, the spread of direct sound in the front-to-back directions is maximized, thereby enabling the performance sound to be heard uniformly over a wide area.

In addition, when packing, the upper and lower bodies can be removed from the connecting member and packed.
The packaging volume can be significantly reduced.

Furthermore, by providing a pedal keyboard, an expression pedal, and a speaker storage section in the lower body to form a single unit, the number of parts can be reduced, and packaging and assembly become easier.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the drawings.

FIG. 1 is a perspective view of an electronic organ equipped with an exterior structure according to this invention, and FIG. 2 is an enlarged sectional view of a speaker housing portion of the lower body thereof.

Configuration of the Embodiment First, the configuration of this embodiment will be explained. In FIG. 1, reference numeral 1 denotes an upper main body, which is equipped with a two-stage keyboard 2 and a music stand 3, and houses various electronic circuits (not shown) inside. . A lower main body 4 includes a pedal keyboard 5 and an expression pedal 6.

In this case, the pedal keyboard 5 is provided as an accompaniment keyboard, but it may be an effect control pedal such as a damper pedal or a sostenuto pedal instead of an accompaniment keyboard.

The upper body 1 and the lower body 4 are connected by being removably connected to the upper and lower ends of a pair of side plates 7, 7, which are connecting members, respectively.
A relatively large space S opened in the front-rear direction is formed between the two.

The lower main body 4 has two speaker housing portions 8 formed at the back of the pedal keyboard 5 and on the right side of the expression pedal 6.

As shown in FIG. 2, for example, the speaker storage section 8 has a box section 4a formed by recessing a part of the lower body 4 made of plastic molding or wood, and has a baffle plate support member 9 fixed thereto.

It has a sound emitting port 10a and a net 11 on the top surface.
A speaker 12 is installed on the back side of the full board 10 covered with
is attached with screws 13, and this baffle plate 10 is fitted into the box portion 4a, supported by the buffle plate support member 9, and fixed with screws 14.

Effect of this embodiment When you play the electronic organ according to this embodiment,
From each speaker 12 attached and housed in the two speaker housing parts 8 formed in the lower main body 4, the seventh
As shown by the arrow in the figure, the performance sound is emitted substantially upward into the space S between the upper body 1 and is deflected by the lower surface of the upper body 1 and diffused forward and backward.

Therefore, the performance sound is diffused in all directions including the position of the player P's ears, and the performance sound can be heard substantially evenly over a wide range, and the performer can sufficiently confirm the result of his or her performance. becomes possible.

Furthermore, since the floor surface acts as a bump, good acoustic effects can be obtained.

In addition, if the upper body 1, lower body 4, and both end plates 7, 7 in the embodiment can be disassembled and assembled, they can be disassembled and packed as shown in FIG. As shown in (a), the volume is reduced to less than half compared to the case of packaging the conventional integral structure exterior 20, and transportation costs can be significantly reduced.

Other Embodiments Figure 4 shows only the lower part of another embodiment of this invention.
FIG. 3 is a side view with the front side plate removed.

The lower main body 4' in this embodiment has a roof-like upper surface with slopes at the front and rear, and a pair of speaker housing sections 8', 8' are formed inside each slope, and a speaker 12 is attached to each of the slopes. It is stored.

Therefore, according to this embodiment, the sound is emitted evenly from the pair of speakers 12, 12 upward to the front and upward to the rear, so that it is possible to listen to even performance sounds over a wider range.

Note that the speaker storage section in these embodiments is not limited to the structure shown in FIG. 2; for example, a single speaker box unit containing a built-in speaker may be stored in a recess formed in the lower main body. You can. The speaker box is
It may be a closed type or a buff type.

Furthermore, the connecting member is not limited to the side plate as in the above embodiment, but may be one that connects the central portions of the upper body and the lower body, for example, with a support or a partition plate.

[Effect of idea]

As explained above, in an electronic musical instrument to which the exterior structure of this invention is applied, the performance sound is emitted almost upward from the speaker installed and housed in the speaker box formed in the lower body, and the sound is emitted substantially upward from the speaker box formed in the lower body. Since the performance sound is diffused within a wide area, a substantially uniform performance sound can be heard over a wide range, and the performer can also accurately confirm the result of his/her performance.

Furthermore, good acoustic effects can be obtained due to the buffling effect of the floor surface.

In addition, by disassembling and packing each part, the packaging volume can be significantly reduced and transportation costs can be reduced.Moreover, the lower body is equipped with a pedal keyboard, expression pedal, and speaker storage compartment.
By making it into a unit, the number of parts can be reduced, making it easier to pack and assemble.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of this invention, Fig. 2 is an enlarged sectional view showing the speaker storage section of the lower body in an exploded manner, and Fig. 3 A and B show the conventional example and this embodiment. Fig. 4 is a side view showing only the lower part of another embodiment of this invention with the front side plate removed, and Fig. 5 shows the exterior structure of a conventional electronic organ. A rear perspective view showing an example, FIG. 6 is an explanatory diagram of the sound emitting direction, and FIG. 7 is an explanatory diagram of the sound emitting direction according to the embodiment of FIG. 1... Upper body, 2... Keyboard, 4, 4'... Lower body, 4a... Box section, 5... Pedal keyboard, 6... Expression pedal, 7... Side plate (connecting member), 8 , 8'...Speaker storage section, 1
0...Battery board, 10a...Sound emitting port, 12...
speaker.

Claims (1)

[Scope of Claim for Utility Model Registration] An upper body equipped with a keyboard, a lower body equipped with a pedal keyboard, an expression pedal, and a speaker storage section in which a speaker is installed with the sound emitting port facing substantially upward; the upper body; A connecting member that removably connects the lower body with a space opened in the front and back direction between the two, the upper end being removably connected to the upper body and the lower end being removably connected to the lower body. An exterior structure for an electronic musical instrument, characterized by comprising a connecting means.