JPH0710396Y2 - Body structure of electronic musical instrument - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a main body structure of an electronic musical instrument such as an electronic organ and an electronic piano.

[Outline of device]

This invention removes the music stand by fixing a nut member to the lower end of the music stand mounting hole of the electronic musical instrument main body equipped with a keyboard, and screws the hinge fixing screws of the lid that covers the upper part of the main body. As a result, the music stand mounting hole is also used as the lid mounting hole, and the main body of the model with and without the lid is shared to improve productivity, keeping the appearance beautiful and dust intrusion. Is to prevent.

[Conventional technology]

Conventionally, in the case of a keyboard electronic musical instrument having no lid, in addition to a plurality of mounting holes 4 for inserting the feet 3 of the music stand 2 on the upper surface of the main body 1 as shown in FIG. A plurality of hinge part mounting holes 8 into which the fixed side of the hinge part 7 of the lid body 6 which is separately supplied to protect the operation part of the hinge part can be inserted are provided.
A plurality of mounting screws 9 are screwed into the screw hole 1b provided on the back surface of the main body 1 from the rear side to fix the hinge portion 7.

[Problems to be Solved by the Invention] However, in such a conventional body structure of an electronic musical instrument, when the lid body 6 is not used, hinge portions for attaching the lid body are attached to the upper surface and the back surface of the body 1. Since the hole 8 and the screw hole 1b of the mounting screw 9 are exposed, there is a problem that not only the appearance is impaired but also dust enters the main body 1.

Further, when the lid 6 is attached, since the inner surface of the lid 6 also serves as a music stand when opened, it is not necessary to attach the music stand 2, and the music stand mounting hole 4 is in an open state to improve the appearance of the main body. There was also a problem that it was damaged and dust entered.

An object of the present invention is to provide a main body structure of an electronic musical instrument that can solve such conventional problems.

[Means for Solving the Problems]

In order to achieve the above object, the body structure of the electronic musical instrument according to the present invention is provided with a plurality of mounting holes on the upper surface of the body into which the feet of the music stand can be inserted, and a nut member is fixed to the lower end of the mounting holes. Then, a mounting screw for fixing the hinge portion of the lid that covers the upper part of the main body can be inserted into the mounting hole and screwed to the nut member.

[Action]

With the above configuration, when attaching the lid, align the attachment hole of the lid hinge with the attachment hole after removing the music stand, and insert the attachment screw into the attachment hole from above to insert the nut at the lower end. By screwing on the member, the lid can be screwed on the upper part of the main body.

By closing the lid body in this state, the operating portion such as the keyboard can be protected, and by opening it, the inner surface of the lid body serves as a music stand, and a dedicated music stand is not required.

Also, when the lid is not used, the foot portion of the music stand is inserted into the mounting hole for inserting the lid mounting screw, so in any case, the mounting hole that does not impair the appearance is exposed on the upper surface of the main body, There is no risk of dust entering.

Further, while maintaining the above-mentioned effects, the main body of the model having the lid and the body of the model having no lid can be shared, and the productivity can be improved.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4 of the attached document.

FIG. 1 shows an embodiment of the present invention. FIG. 1 is an exploded perspective view thereof, FIG. 2 is a perspective view showing a state in which a lid is removed and a music stand is attached, and FIG. 3 is a lid attached state. FIG. 4 is an enlarged cross-sectional view of an essential part shown in FIG. 4, and FIG. 4 is an enlarged sectional view of an essential part showing a music stand attached state.

The main body 1 is a keyboard 5 arranged in two stages on the upper surface and various operators.
It has panels 13 and 14 in which 11 and a display window 12 are arranged, and has a tone signal generating circuit (not shown) inside.

The upper surface fixing portion 1a of the main body 1 is provided with two substantially vertical mounting holes 4 into which the foot portions 3 of the music stand 2 can be inserted, with a space left and right, and the lower end portion of the mounting hole 4 is shown in FIG. Also, as shown in FIG. 4, a nut member 15 is fixed.

The nut member 15 is inexpensive and has good productivity if a cylindrical protruding portion 15a is formed on a sheet metal material by an extrusion process and a screw hole 15b is provided on the inner peripheral surface of the protruding portion 15a and is welded to the lower end portion of the mounting hole 4. However, it does not matter if you use a ready-made nut.

On the other hand, the movable side 7a of the two hinges 7 is fixed to the rear end portion of the separately supplied lid body 6 with a space therebetween, and the fixed side 7b of the hinge 7 is provided with a through hole 7c to form two transparent holes. The distance between the holes 7c, 7c is equal to the distance between the two mounting holes 4,4.

Since this embodiment is constructed as described above, the mounting hole 4
When the foot portion 3 of the music stand 2 is inserted into the music stand 2, the lower end portion of the foot portion 3 inserted through the mounting hole 4 is brought into contact with the upper surface of the nut member 15 as shown in FIG. As shown in FIG.

Next, the music stand 2 is removed, the lid 6 is placed on the upper surface of the main body 1 so as to cover the keyboard 5 and the panels 13 and 14, and the through hole 7c of the movable side 7b of the hinge 7 is aligned with the mounting hole 4. Nut member having the mounting screw 9 fixed to the lower end by inserting the through hole 7c and the mounting hole 4.
When the screw 6 is screwed into the screw hole 15b, the lid 6 is screwed into the main body 1, and the keyboard 5 and various operators 11 can be protected when the lid 6 is closed, and the lid 6 of the lid 6 can be opened when the lid 6 is open. Since the inner surface is a music stand, the dedicated music stand 2 is unnecessary.

Since the mounting hole 4 is not exposed to the outside when the music stand 2 is attached or the lid 6 is attached, the external appearance of the main body 1 is not impaired and dust is not exposed. There is no fear of invading inside.

In addition, in the above embodiment, the separately supplied lid body is
The case where both the keyboard and the operation panel arranged in a row are covered has been described, but in the case of an electronic musical instrument having only one keyboard in the front and an operation panel behind the keyboard, only the operation panel may be covered.

[Effect of device]

As described above, in the main body structure of the electronic musical instrument according to the present invention, the nut member is fixed to the lower end of the music stand mounting hole provided on the upper surface of the main body, so the music stand is removed and the lid hinge is attached to this mounting hole. The lid can be easily attached by screwing the fixing screws for fixing the parts, and in this state, the inner surface of the lid also serves as the music stand, so that it is not necessary to attach a dedicated music stand.

In the state where either the music stand or the lid is attached, the attachment hole is closed and not exposed to the outside, so that it is possible to prevent dust from entering without impairing the appearance of the main body.

Furthermore, while maintaining such an excellent effect, it is possible to share the main body with models with and without a lid,
Productivity is further improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a state in which a lid is attached according to an embodiment of the present invention, FIG. 2 is a perspective view showing a music stand attached state, and FIG. 3 is an enlarged cross-sectional view of a main portion showing the lid attached state. FIG. 4 is an enlarged cross-sectional view of a main part showing a music stand attached state, and FIG. 5 is an exploded perspective view illustrating a main body structure of a conventional electronic musical instrument. 1 ... Main body, 2 ... Music stand 3 ... Stand of music stand, 4 ... Mounting hole 5 ... Keyboard, 6 ... Lid body 7 ... Hinge, 9 ... Mounting screw 11 ... Operator, 15 …… Nut member

Claims (1)

[Scope of utility model registration request] 1. A plurality of mounting holes into which a foot of a music stand can be inserted are provided on an upper surface of a main body having a keyboard and a tone signal generating circuit,
A nut member is fixed to the lower end of the mounting hole, and a mounting screw for fixing a hinge portion of a lid that covers the upper portion of the main body is inserted through the mounting hole and screwed to the nut member. The main structure of the electronic musical instrument characterized in that is used as a mounting insertion hole for the foot of the music stand and also as a mounting screw hole for fixing the hinge part.