JPH11272276A - Unit supporting structure of electronic musical instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a unit supporting structure of an electronic musical instrument which can properly and effectively mount and support the principal component members of the electronic musical instrument. SOLUTION: A drive unit 4 for driving a musical sound information storage medium is supported on a predetermined part inside a casing 1. The drive unit 4 is secured to a chassis 1c via cushion means made of different kinds of cushion materials. A transformer unit 5 is secured to the top of the casing 1 via a mounting plate 19 so that the center of gravity is set at the center of the casing 1. A collar is interposed between the chassis 1c and the drive unit 4 to indirectly fix the drive unit 4 in place. The mounting plate 19 is coupled to the rear panel material 1c or the upper surface panel material 1b of the casing 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument, and
The present invention relates to an SMF player capable of reproducing music information of an SMF (Standard MIDI File) formatted according to the MIDI standard that handles DI format data.

[0002]

2. Description of the Related Art This type of SMF player is used, for example, when practicing a musical instrument and reproducing and playing a musical sound for each part. In this SMF player, the MID
A recording medium such as a floppy disk for storing music information formatted according to the I standard is used, and the floppy disk drive is driven by a floppy disk drive.

FIGS. 5 to 7 show examples of the configuration of a conventional SMF player. The housing 1 of the player main body is formed in a box shape by bending the front, top, and bottom panel members 1a, 1b, and 1c integrally formed by bending substantially in a U-shaped cross section, the rear panel member 1d on the back surface, and the arms 2 on both sides. Is formed. A pair of speakers 3 is mounted on the front panel 1a of the housing 1. Further, a floppy disk drive 4 having a slot 4a for inserting and removing a floppy disk from the front panel member 1a is provided. This floppy disk drive 4
Is installed on the bottom panel 1c as shown in FIG. 5 or FIG.

[0004] In addition to the floppy disk drive 4, a transformer 5 is provided inside the player body. The transformer 5 is fixed to the bottom panel member 1c via the bracket 6 so as to be located above the floppy disk drive 4 as shown in FIG. 5, for example. A circuit board 7 on which various electronic components and the like are mounted is also attached to the player body.

The front panel 1a of the housing 1 is provided with operation knobs or switches 8 and a display, and the upper panel 1a is provided with a handle or handle 9 for carrying.

Here, when the floppy disk drive 4 is fixed to the chassis (bottom panel member 1c) of the player main body, the floppy disk drive 4 is fixed by a screw 11 via a cushion member 10, for example, as shown in FIG. Or, as shown in FIG. 9, it is fixed by a collar 13 and a screw 11 via a cushion material 12. By using the cushion material 10 or the cushion material 12 as described above, the displacement of the floppy disk drive 4 due to the vibration during the operation of the speaker 3 is prevented.

When the transformer 5 is installed, it is positioned near the center of the player body via the bracket 6 as described above. In this kind of small and lightweight electronic musical instrument, it is necessary to carry the handle 9 with one hand,
It is preferable that the transformer 5 which is a heavy object is installed at the center position of the player body. With this, the center of gravity of the whole is set at the center, and it is easy to carry.

[0008]

However, in the conventional SMF player, the floppy disk drive 4
Is fixed to the chassis of the player body, for example, in the case shown in FIG. 8, a fixing screw 11 is directly connected to the chassis. With such a support structure, the vibration transmitted from the chassis to the floppy disk drive 4 during the operation of the speaker 3 cannot be sufficiently reduced. Further, there is a problem that the amount of compression of the cushion material 10 changes due to the tightening or loosening of the screw 11.

Further, in the structure shown in FIG. 9, the amount of compression of the cushioning material 12 is regulated by mounting the collar 13, but this reduces the cushioning property itself. Even in this case, the vibration to the floppy disk drive 4 cannot be sufficiently reduced.

When the transformer 5 is installed in a conventional SMF player, it is fixed to the bottom panel 1c. Therefore, as is clear from the example of FIG.
Has to be installed avoiding the installation site of the transformer 5, and there is a problem that the arrangement relation of the constituent members or the arrangement space is restricted.

The present invention has been made in view of the above circumstances, and has as its object to provide a unit support structure for an electronic musical instrument capable of properly and effectively mounting and supporting main components of the electronic musical instrument.

[0012]

According to the present invention, there is provided a unit supporting structure for an electronic musical instrument, comprising: an electronic musical instrument supporting a drive unit for driving a tone information recording medium at a predetermined position in a housing; The drive unit is fixed via cushion means made of a material.

Further, in the unit supporting structure of the electronic musical instrument according to the present invention, a collar is interposed between the chassis and the drive unit, and the drive unit is indirectly fixed. Further, in the unit support structure of the electronic musical instrument of the present invention, different types of cushion materials having different materials are used.

The unit support structure of the electronic musical instrument according to the present invention is characterized in that, in the electronic musical instrument supporting the transformer unit at a predetermined portion in the housing, the upper part of the housing is set so that the center of gravity is set at the center of the housing. Wherein the transformer unit is fixed via a mounting plate.

In the unit supporting structure for an electronic musical instrument according to the present invention, the mounting plate is connected to a rear panel material or a top panel material of the housing.

The unit support structure of the electronic musical instrument according to the present invention is a device for supporting a drive unit for driving a musical tone information recording medium and a transformer unit at a predetermined portion in a housing. And fixing the drive unit via a mounting plate on the upper part of the housing so that the center of gravity is set at the center of the housing, while fixing the drive unit via cushion means consisting of I do.

According to the present invention, first, when the floppy disk drive is mounted on the chassis, the drive unit is fixed to the chassis via cushion means made of different kinds of cushion materials. That is, the first cushion material is attached to the chassis, and the collar is inserted into the chassis.
Then, the second cushioning material is inserted into the collar, and thus the collar is inserted between the chassis and the drive unit,
Fix the drive unit indirectly. In particular, by using the collar and the first and second cushioning materials, the cushioning property can be enhanced, and an excellent anti-vibration effect can be obtained.

Further, by fixing the transformer unit to the upper part of the housing via a mounting plate, the center of gravity of the housing is set while avoiding members such as a circuit board. Thus, an electronic musical instrument that is easy to carry can be realized by eliminating restrictions such as the arrangement space of the constituent members and setting the center of gravity at a suitable position.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, members that are substantially the same as or correspond to those of the prior art will be denoted by the same reference numerals.
A preferred embodiment of an electronic musical instrument according to the present invention will be described.
FIG. 1 and FIG. 2 show a configuration example of an SMF player in this embodiment. The basic configuration around the housing 1 of the player body is substantially the same as that of the conventional example. Therefore, the pair of speakers 3 is mounted on the front panel 1a of the housing 1.

A floppy disk drive (drive unit) 4 having a slot 4a for inserting and removing a floppy disk from the front panel 1a is installed on the bottom panel 1c. In particular, in the present invention, the floppy disk drive 4 is fixed to the chassis (bottom panel member 1c) of the player main body via cushion means made of different kinds of cushion materials.

The unit support structure of this embodiment includes a first cushion member 14 and a second cushion member 15, as shown in FIG. In this example, FIG.
For example, the floppy disk drive 4 is supported at four points. The collar 16 is interposed between the chassis and the floppy disk drive 4 to indirectly fix the floppy disk drive 4.

FIG. 4 shows a detailed structure of this embodiment. When attaching the floppy disk drive 4 to the chassis, first, the first cushion member 14 is attached to the bottom panel member 1c, and the collar 16 is inserted into the first cushion member 14. Further, the second cushion material 15 is inserted into the collar 16, and the screw 17 is fastened to the floppy disk drive 4. Note that a washer 18 is used.

The first cushion material 14 and the second cushion material 15 are preferably made of different materials, that is, different in hardness and elasticity. For example, the first cushion material 14
A rubber-based material may be used, and the second cushion material 15 is preferably made of, for example, a material such as polon. By using a combination of different kinds of materials in this way, the cushioning properties can be significantly improved. The collar 16 is preferably made of plastic such as polypropylene.

In the electronic musical instrument of the present invention, the housing 1
A transformer (trans unit) 5 is supported at a predetermined portion in the inside. In this embodiment, as shown in FIGS. 1 and 2, the transformer 5 is fixed to the upper part of the housing 1 via the mounting plate 19 so that the center of gravity is set at the center of the housing 1. In this case, the mounting plate 19 is connected to the rear panel member 1d and the crosspiece 2 via the brackets 20a and 20b, respectively. Note that the bracket 20a and the rear panel member 1d may be fastened together with the folded portion of the upper panel member 1b with the screw 23. By reinforcing the mounting rigidity of the mounting plate 19 as described above, the heavy transformer 5 can be sufficiently supported.

On the mounting plate 19, a so-called onion nut 21 is driven into a predetermined portion. By screwing the machine screw 22 into the onion nut 21, the transformer 5 can be firmly attached and fixed to the attachment plate 19.

As is clear from FIG. 1 or FIG. 2, by supporting the transformer 5 via the mounting plate 19 on the upper part of the housing 1, a particularly large arrangement space around the circuit board 7 can be secured. Therefore, it is possible to realize a portable electronic musical instrument by increasing the degree of freedom in the arrangement relationship of members such as the circuit board 7 and setting the center of gravity at a suitable position.

In the above-described embodiment, the example in which the mounting plate 19 is connected to the rear panel member 1d or the like has been described.

[0028]

As described above, according to the present invention, in this type of electronic musical instrument, the position of the floppy disk drive, which is a main constituent member, is restricted when the floppy disk drive is mounted on the chassis, and the cushioning property is enhanced to reduce the vibration. It is possible to eliminate the influence on the main body by reducing the amount. Further, the transformer is installed on the upper side via the mounting plate, and has an advantage that the whole center of gravity is set at the center so that the transformer is easily carried and the arrangement of the members is facilitated.

[Brief description of the drawings]

FIG. 1 is a front view showing an example of the internal structure of an SMF player according to an embodiment of the present invention.

FIG. 2 is a side view showing an example of the internal structure of the SMF player according to the embodiment of the present invention.

FIG. 3 is a partial sectional view and a bottom view showing a drive unit support structure according to the embodiment of the present invention.

FIG. 4 is a sectional view of a main part showing a drive unit support structure according to the embodiment of the present invention.

FIG. 5 is a front view showing an example of an external configuration of a conventional SMF player.

FIG. 6 is a front view showing an example of the internal structure of a conventional SMF player.

FIG. 7 is a side view showing an example of the internal structure of a conventional SMF player.

FIG. 8 is a side view showing a conventional drive unit support structure.

FIG. 9 is a partial sectional view showing a conventional drive unit support structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 1a Front panel material 1b Top panel material 1c Bottom panel material 1d Rear panel material 2 Arm 3 Speaker 4 Floppy disk drive 4a Slot 5 Transformer 6 Bracket 7 Circuit board 8 Operation knob or switch 9 Handle 14 First cushion material 15 Second cushion material 16 Collar 17 Screw 19 Mounting plate 21 Demon nut 22 Machine screw 23 Screw

Claims (6)

[Claims] 1. An electronic musical instrument that supports a drive unit for driving a musical sound information recording medium at a predetermined position in a housing, wherein the drive unit is fixed to a chassis via cushioning means made of a different kind of cushioning material. A unit support structure for an electronic musical instrument, characterized by: 2. The unit support structure for an electronic musical instrument according to claim 1, wherein a collar is interposed between the chassis and the drive unit to indirectly fix the drive unit. 3. The unit support structure for an electronic musical instrument according to claim 1, wherein different types of cushion materials having different materials are used. 4. An electronic musical instrument supporting a transformer unit at a predetermined position in a housing, wherein the transformer unit is fixed to an upper portion of the housing via a mounting plate so that a center of gravity is set at a center of the housing. A unit support structure for an electronic musical instrument. 5. The unit support structure for an electronic musical instrument according to claim 4, wherein the mounting plate is coupled to a rear panel material or a top panel material of the housing. 6. An electronic musical instrument supporting a drive unit and a transformer unit for driving a musical sound information recording medium at a predetermined position in a housing, wherein the drive unit is connected to a chassis via cushioning means made of different types of cushioning materials. A unit support structure for an electronic musical instrument, wherein the transformer unit is fixed via a mounting plate on an upper portion of the housing so that the transformer unit is fixed and a center of gravity is set at a center of the housing.