JPH075193U - Speaker box mounting structure for electronic musical instruments - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a speaker box mounting structure for an electronic musical instrument, in which the orientation of the speaker box can be appropriately changed as necessary. A speaker box 6 is horizontally rotatably mounted around a longitudinal axis 6a between side plates 3 supporting an electronic musical instrument main body 1, and the mounted speakers are mounted on the player side and the opposite side. The speaker boxes 6 can be fixed in corresponding rotational positions so as to face each other. In particular, the speaker box 6 is rotatably supported at both ends thereof via a pair of rotation screws 8 and is fixed at a predetermined rotation position by a pair of fixing screws 11. The rotating screw 8 has a stopper for preventing it from coming off, and the fixing screw 11 is removable. The speaker box 6 rotates around a rotation screw 8 which is its support shaft, and the speaker can be appropriately turned toward the player side or the opposite side.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a speaker box mounting structure for an electronic musical instrument such as an electronic piano or an electronic organ.

[0002]

[Prior art]

 For example, in an electronic organ, its speaker is generally attached toward the performer side (front side). According to such a general-purpose electronic organ, the performer can play while listening to the performance. On the other hand, although it is a special form, it is known that a speaker is attached so as to face the opposite side of the performer when performing an accompaniment to a song, such as a school organ. According to such an accompaniment electronic organ, the performance sound can be heard by a student or the like on the opposite side of the performer with the electronic organ interposed therebetween.

[0003]

[Problems to be solved by the device]

 The general electronic organ and the accompaniment electronic organ require different speaker boxes, and each speaker box is fixed to each organ body. That is, the orientation of the speaker once attached is fixed to either the performer side or the opposite side according to the type (general or accompaniment) of the electronic organ, and then the performer side or The other side could not be easily changed.

In view of such circumstances, it is an object of the present invention to provide a speaker box mounting structure in an electronic musical instrument in which the direction of the speaker can be easily changed as appropriate.

[0005]

[Means for Solving the Problems]

 The speaker box mounting structure in the electronic musical instrument according to the present invention is constructed such that the speaker box is rotatably provided around the longitudinal axis between the side plates supporting the main body of the electronic musical instrument and the mounted speaker is mounted on the side of the performer. The speaker boxes can be fixed in the corresponding rotational positions so that they face the opposite side.

Particularly, the speaker box is rotatably supported by a pair of rotation screws at both ends thereof, and is fixed at a predetermined rotation position by a pair of fixing screws. .

Further, the rotating screw has a stopper for preventing it from coming off, and the fixing screw is removable.

[0008]

[Action]

 According to the present invention, the speaker box attached to the lower side of the main body of the electronic musical instrument such as the electronic piano, the electronic organ, etc. rotates around the rotation screw which is the support shaft thereof, and the speaker attached to the speaker box. Can be directed towards the player or the other side. In that case, the speaker box is fixed at a predetermined rotation position by a fixing screw.

For example, when the player alone plays the speaker, the speaker box is fixed at a position where the speaker faces the player. On the other hand, when performing accompaniment, the speaker is placed on the opposite side of the player. Fix in the facing position. As described above, although it is one electronic musical instrument, the direction of its speaker can be freely changed as a general-purpose or accompaniment electronic organ or the like as required, which is extremely convenient. In that case, the speaker box can be easily rotated and fixed, and the handling is extremely easy.

[0010]

【Example】

 Hereinafter, a preferred embodiment of a speaker box mounting structure in an electronic musical instrument according to the present invention will be described with reference to FIGS. 1 to 4.

FIG. 1 shows the overall structure of the speaker box mounting structure of the present invention. In the figure, 1 is a main body of an electronic musical instrument such as an electronic piano or electronic organ having a large number of keyboards (not shown), and 2 is a A cover 3 attached to the main body 1 so as to be openable and closable is a side plate that supports the main body 1 from both sides thereof. The lower ends of the pair of side plates 3 are connected to each other by a base 4. In the figure, reference numeral 5 is a performance pedal, and this performance pedal is connected to the main body 1.

Further, in FIG. 1, reference numeral 6 denotes a speaker box, which is mounted between the side plates 3 so as to be rotatable around a rotation shaft 6 a along the longitudinal direction thereof. Screw holes 7 located on the rotary shaft 6a are formed at both ends of the speaker box 6, and a rotating screw 8 (only one of the left side is shown in the drawing) is provided in each screw hole 7. It is designed to be screwed together. Further, the side plate 3 is formed with a through hole 9 through which the rotating screw 8 is inserted. A through hole 10 is formed in a position close to the upper side of the through hole 9 of each side plate 3, and a fixing screw 11 (only one of the right side is shown in the drawing) is inserted into each through hole 10. Further, at both ends of the speaker box 6, screw holes 12a and 12b into which fixing screws 11 can be screwed are formed on both sides (upper and lower sides) of the screw hole 7 with the screw hole 7 interposed therebetween.

The rotation screw 8 rotatably supports the speaker box 6 at both ends thereof, but a stopper (not shown) for preventing the speaker box 6 from being attached is formed at an appropriate position so that the speaker box 6 can be dropped. It is designed to prevent this. The fixing screw 11 fixes the speaker box 6 at a predetermined rotation position, but can be freely inserted and removed.

FIG. 2 shows an example of the configuration of the speaker box 6. In the figure, a pair of speakers 14 are mounted inside the speaker box 6 separated by a partition wall 13 (note that the speaker 14 is still installed). The description of the detailed structure of 14 is omitted). On a mounting surface 6b of the speaker 14 of the speaker box 6, a grill (hard board) 15 to which a jersey 15a is attached is attached. In this case, the grill 15 can be attached using the joining means 16 and 17 such as a velcro tape provided on the attachment surface 6b and the inner surface of the grill 15, respectively.

As shown in FIG. 3, a wiring portion 18 for connecting the main body 1 and the speaker 14 is provided at one end of the speaker box 6, for example. The speaker 14 is electrically connected to the main body 1 through the speaker wiring 20 from the connection terminal 19 connected to them. The wiring portion 18 is formed with openings 21a and 21b through which the speaker wiring 20 is inserted. A pair of openings 21a and 21b are opened vertically as shown in the figure, and the speaker wiring 20 can be drawn out from any of the openings 21a and 21b. The speaker wiring 20 has a connector 20 a for connecting to the main body 1.

The speaker box mounting structure in the electronic musical instrument according to this embodiment is configured as described above, and its operation will be described next. The speaker box 6 is horizontally supported by rotation screws 8 at both ends thereof, and is fixed at a predetermined rotation position by screwing a fixing screw 11 into one of the screw holes 12a and 12b. . For example, as shown in FIG. 3, when the fixing screw 11 is screwed into the screw hole 12a, the speaker box 6 is fixed so that the speaker 14 faces the player.

By fixing the speaker box 6 so that the speaker 14 faces the player in this way, as shown in FIG. 4, for example, as a general electronic organ, the player listens to the performance sound. You can play. In this case, the speaker box 6 is securely fixed at a predetermined position by the fixing screw 11, so that the electronic instrument should be used just like the conventional general-purpose electronic organ (fixed speaker box type). You can Then, in this case, the speaker wiring 20 is pulled out from the speaker box 6 through the opening 21 a and connected to the main body 1 by the connector 20 a.

Next, the case of switching from the general electronic organ form to the accompaniment electronic organ form will be described.

In this case, first, the rotating screw 8 is loosened, and then the fixing screw 11 is removed. As a result, the speaker box 6 can be rotated around its rotation axis 6a, but the rotation screw 8 has the stopper for preventing the speaker box 6 from coming off as described above, and therefore the speaker box 6 falls. There is no danger. In this way, its safety is sufficiently secured in use. Then, the connector 20a is removed from the main body 1, and the speaker box 6 is rotated by 180 ° around the rotation axis 6a. In this case, it may be rotated in either direction as indicated by the double-headed arrow in FIG. Note that, as shown in FIG. 4, a certain gap G is set between the speaker box 6 and the shelf plate so that the speaker box 6 does not interfere with the shelf plate during its rotation.

Further, the fixing screw 11 is screwed into the screw hole 12b, and the speaker box 6 is fixed so that the speaker 14 faces the side opposite to the player. In this case, the speaker wiring 20 is pulled out from the speaker box 6 through the opening 21b and connected to the main body 1 by the connector 20a. Depending on the orientation of the speaker box 6, the speaker wiring 20 can be taken out from two directions through the opening 21a or the opening 21b, so that the speaker box 6 can be effectively rotated. By fixing the speaker box 6 so that the speaker 14 faces the side opposite to the player in this way, as shown in FIG. 4, for example, as an accompaniment electronic organ, a student or the like on the opposite side of the player. You can play the electronic organ while listening to the performance sound.

As in the above-described operation example, it is possible to easily and accurately switch to the general-purpose electronic organ or the accompaniment electronic organ by a simple work of inserting / removing the fixing screw 11 and rotating / fixing the speaker box 6. It is possible to do so, so to speak, it is extremely convenient because it plays two roles. In the above case, an example of switching from the general electronic organ form to the accompaniment electronic organ form has been described, but the reverse case, that is, the case of switching from the accompaniment electronic organ to the general electronic organ, is the same as above. Needless to say, the switching operation can be easily performed.

In the above-described embodiment, the case where the speaker 14 is directed to the player side by screwing the fixing screw 11 into the screw hole 12a has been described. Whether or not the speaker 14 should face the player side in this way when screwed into the screw hole 12a or 12b can be set in advance. For example, the fixing screw 11 may be screwed into the screw hole 12b so that the speaker 14 faces the player. Further, although the example in which the pair of fixing screws 11 are provided on both sides of the speaker box 6 has been described, more fixing screws 11 can be provided. Furthermore, even with a single fixing screw 11, the speaker box 6 can be fixed at a predetermined position.

[0023]

[Effect of device]

 As described above, according to the speaker box mounting structure of the present invention, in this type of electronic musical instrument, two types of electronic musical instruments, such as a general-purpose electronic organ or an accompaniment electronic organ, are appropriately used according to the needs of the playing place and time. Can be easily realized. In that case, there is an advantage that the switching operation for changing to any type or form can be easily and accurately performed and the handling is extremely easy.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of a speaker box mounting structure for an electronic musical instrument of the present invention.

FIG. 2 is an exploded perspective view of a speaker box according to a speaker box mounting structure for an electronic musical instrument of the present invention.

FIG. 3 is a perspective view of a main part of the speaker box.

FIG. 4 is a side view showing an example of use in an electronic musical instrument according to the present invention.

[Explanation of symbols]

 1 main body 2 cover 3 side plate 4 base 5 playing pedal 6 speaker box 6a rotating shaft 7 screw hole 8 rotating screw 9,10 through hole 11 fixing screw 12a, 12b screw hole 13 partition wall 14 speaker 15 grill 16, 17 joining means 18 wiring part 19 connection terminal 20 speaker wiring 21a, 21b opening

Claims (3)

[Scope of utility model registration request] 1. A speaker box horizontally rotatably around its longitudinal axis between side plates supporting an electronic musical instrument body so that the mounted speaker faces the player side and the opposite side. A speaker box mounting structure in an electronic musical instrument, wherein each of the speaker boxes can be fixed at a corresponding rotational position. 2. The speaker box is rotatably supported by a pair of rotation screws at both ends thereof, and is fixed at a predetermined rotation position by a pair of fixing screws. A speaker box mounting structure for an electronic musical instrument according to claim 1. 3. The speaker box mounting structure for an electronic musical instrument according to claim 2, wherein the rotating screw has a stopper for preventing the screw from coming off, and the fixing screw is removable.