JPH0546078Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention relates to improving the music stand support structure of keyboard instruments such as electronic pianos, especially when placing other items on the upper panel of the instrument body. Provide a valid keyboard instrument.

(Prior Art) Conventionally, in keyboard instruments such as electronic pianos and electronic organs, as shown in FIG. ) is sandwiched between the side plates 3 of the instrument body P (or placed on the top surface)
A horizontally elongated plate is attached to the upper panel 2 made of metal material such as plywood or iron plate, or synthetic resin at the center in the left-right direction.

As shown in FIG. 5A, this music board 1 is inserted and fixed into a groove of a music board support member 1A made of metal or synthetic resin, etc. and has a substantially U-shaped cross section, and is integrated with the music board support member 1A on the lower surface of the music board support member 1A. or another metal leg 4
by inserting it into the hole provided in the upper panel 2 (or into the holder 5 made of metal, synthetic resin, etc.) and supporting it.
As shown in FIG. 5B, legs 4 made of synthetic resin or metal such as iron are attached to the back side of the left and right ends of the music board 1 with screws, etc., and these legs 4 are attached as shown in FIG. 5A. As shown in FIG. 5C, there is a structure in which the music board 1 is
Attach a piece of hinge 6 to the lower part of the back side of the left and right ends of
A structure in which the other side is directly fixed to the upper panel surface 2 is generally used, and a music stopper rod 7 having approximately the same length as the music stand 1 is fixed to the front of the music stand 1.

Note that 10 shown in FIGS. 5B and 5C indicates that when the legs 4 or hinges 6 are fixed with screws, etc. to the back side of the music board 1, which is made of a synthetic resin board such as transparent acrylic resin, the screws, etc. are not visible from the front side. This is a metal blindfold plate made of iron or aluminum plate for the purpose of

(Problem that the invention aims to solve) With the advancement of performance techniques, keyboard instruments and other devices (synthesizers, rhythm generators, sound source devices, etc.)
Recently, there have been many cases in which a keyboard instrument is used in combination with the keyboard instrument, and other devices are often placed on the upper panel 2 of a keyboard instrument for convenience in performance.

However, in the conventional music stand support structure, the support position of the music board 1 is fixed as described above, so
The space left on the left and right sides of the upper panel 2, excluding the music board 1, was narrow and only small devices could be placed thereon.

In addition, the music board 1 is made of wood or a synthetic resin board made of transparent, translucent, or opaque acrylic resin, but especially acrylic resin is susceptible to expansion and contraction due to changes in the environment (temperature). If the mounting position is fixed by the legs 4 or hinges 6, the shrinkage rate will be different from the upper panel 2 on the fixed side, which will cause the music board 1 to warp, as shown in Fig. 5. In the case of the music board 1 with the blindfold board 10 shown in B and C, since the individual shrinkage rates of the music board 1 and the blindfold board 10 are different, this appears as a warp of the music board 1 as a whole. There was a drawback that it was difficult to insert and remove the board 1, or to raise and lower it.

Furthermore, the music board 1 requires a supporting member 1A, legs 4 or hinges 6, and additional members such as a blindfold 10, and the upper panel 2 also needs to have a hole or a receiver 5 for receiving the music board 1. Therefore, machining accuracy is required to attach the music board 1 to a predetermined position on the upper panel 2, resulting in an increase in parts cost and processing cost, and there is a drawback that an inexpensive music stand support structure cannot be obtained.

The present invention aims to improve the above-mentioned drawbacks.

(Means for solving the problem) This idea is to provide a groove that is inclined at a required angle toward the rear of the instrument body over almost the entire length of the upper panel of the keyboard instrument in the left and right direction, and a music board can be freely attached and detached from the groove. It is a keyboard instrument designed to be inserted into the

(Function) Since the music board is inserted into a groove that spans almost the entire length of the upper panel in the left and right direction and is inclined at a required angle toward the rear of the instrument body, the music board can be attached and removed freely.
Moreover, since the music board is movable left and right along the groove, it can be installed in any position.

(Example) An example of the music stand support structure of this invention will be described below.

Figure 1 is a top perspective view of the electronic piano;
View A shows its central cross-section.

Reference numeral 1 denotes a music board made of wood or synthetic resin (for example, transparent, translucent, or opaque acrylic resin board). Reference numeral 8 denotes a music board support rail made of metal (for example, aluminum extrusion molding) or synthetic resin to have approximately the same length as the left and right direction of the upper panel 2, and has a music board locking piece 8a formed approximately perpendicular to the front end. A flat part 8b extending rearward from the bottom side of the music sheet locking piece 8a is provided, and a front side music board support piece 8c having a required inclination angle is formed at the rear end of the flat part 8b, and this support piece 8c and the music board Between the rear end of the support rail 8 and the rear side music plate support piece 8d, a groove 9 having a substantially U-shaped cross section, which is parallel and wider than the thickness of the music plate 1, is provided over the entire length of the music plate support rail 8. ing. This music board support rail 8 is fixed between the upper panel 2 and the upper panel front matter 11.

With this arrangement, the music board 1 can be easily supported at a required angle by inserting it into the groove 9 of the music board support rail 8 from above.

In addition, the music board 1 is supported by simply inserting it into the groove 9 of the music board support rail 8, and the support position of the music board 1 is not limited to a specific position, but can be freely moved left and right along the groove 9 as desired. It can be supported in this position.

The back of the music sheet is placed against the music board 1 which is supported by the groove 9 of the music board support rail 8, and the bottom of the music sheet is held in contact with the music locking piece 8a of the music board support rail 8, thereby preventing the music sheet from sliding. Prevents it from falling.

In this embodiment, the upper panel 2, the music board support rail 8, and the upper panel front matter 11 are each formed separately. However, as shown in FIG. 2B, the upper panel 2 is formed of a metal plate or A rib 8a and a flat surface 8b are formed of synthetic resin and have approximately the same length as the left and right direction of the upper panel 2, and a flat surface 8b.
and a parallel cross-section U that is slightly wider than the thickness of the music board 1.
The music board support rail 8 having the letter-shaped groove 9 and the upper panel front matter 11 in front of the music board support rail 8 may be formed integrally.

Furthermore, as shown in FIG. 2C, it goes without saying that the groove 9 having a substantially U-shaped cross section for supporting the music board and the music stopper bar 7 may be formed integrally. In this case,
If the groove 9 is provided deep, the front music board support piece 8c becomes unnecessary.

Furthermore, when the upper panel 2 is made of wood, as shown in FIG. 3, a music board is provided with only a groove 9 having a substantially U-shaped cross section for supporting the music board and having approximately the same length as the left and right direction of the upper panel 2. A support rail 8 may be formed, a panel groove 2A may be provided in the upper panel 2, the music board support rail 8 may be buried therein, and the music board 1 may be inserted into the groove 9.

(Effects) As described above, according to the present invention, the music board is supported by simply fitting it into the groove of the music board support rail, and the supporting position of the music board is not limited to a specific position as in the past, but it can be attached to the groove. Since it can be moved freely left and right along the top panel and supported at any position, it provides a large space above the top panel without compromising its function as a music board, allowing you to store other large equipment (synthesizers, rhythm generators, etc.). It has the advantage of being able to accommodate ample space for equipment such as instruments, sound source devices, etc.

Furthermore, since the music board is not fixed, the music board will not warp due to environmental changes or the like. In other words, if the upper panel is made of wood or iron (for example, PVC steel) and the music board is an acrylic resin board, the shrinkage rates of the two will differ depending on environmental changes, but in particular, the shrinkage will be in the length direction rather than the thickness direction of the music board. (in the longitudinal direction of the groove), when the music board is fixed, it is easily affected and warps appear, but in the case of the present invention, the music board does not warp.

Furthermore, there is no need for separate parts such as legs or hinges for attaching the music board as in the past, and there is no need to provide a holder or hole in the upper panel to receive the music board, reducing parts costs and processing costs. This has the effect of being able to significantly reduce the cost and providing an inexpensive music stand support structure.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of essential parts showing a music stand support structure according to an embodiment of this invention, FIG. 2A is a sectional view showing a music stand support structure according to an embodiment of this invention, and FIG.
Figure B is a sectional view showing another music stand support structure according to this invention, Figure 2 C is a sectional view showing still another music stand support structure according to this invention, and Figure 3 is a sectional view showing this structure when the upper panel is made of wood. A sectional view showing a music stand support structure according to an embodiment of the invention, FIG. 4 is a perspective view showing an example of a conventional music stand support device, FIG. 5A is an explanatory diagram showing an example of a conventional music stand support device, FIGS. 5B and 5C are assembly diagrams of main parts showing other conventional music boards, respectively. In the figure, P... instrument body, 1... music board,
1A... Support member, 2... Top panel, 3... Side plate, 4... Leg, 5... Receiver, 6... Hinge, 7...
...Music stop bar, 8...Music board support rail, 8a...
...Music locking piece, 8b...Flat part, 8c...Front music board support piece, 8d...Rear music board support piece, 9...
Groove, 10...Blind plate, 11...Upper panel front,
It is.

Claims (1)

[Scope of utility model registration request] A groove 9 is provided over almost the entire length of the upper panel 2 in the left-right direction of the musical instrument main body P, and is inclined at a required angle toward the rear of the musical instrument main body P, and the music board 1 is removably inserted into the groove 9. 1 is movable in the left-right direction along the groove 9, and the music board 1 is tilted at a required angle toward the rear of the musical instrument main body P, so that the music board 1 can be installed at any position.