JP2021110878A - Musical score receiving structure of keyboard instrument, keyboard instrument and upright piano - Google Patents

Abstract

To select a position and an angle of a musical score when it is placed without using an auxiliary musical score board and the like.SOLUTION: A musical score receiving structure of a keyboard instrument includes: an upper front board 18 for receiving a back face of a musical score 19; an inclined face 23 capable of receiving a lower end 19a of the musical score 19; and an inclined part 34a which is formed of a member different from the inclined face 23, can receive the lower end 19a of the musical score 19 and whose inclination angle formed with respect to a horizontal direction differs from the inclined face 23.SELECTED DRAWING: Figure 4

Description

The present invention relates to a musical score receiving structure of a keyboard instrument, a keyboard instrument, and an upright piano.

Conventionally, some musical score receiving structures adopted for some keyboard instruments have musical scores placed on a music stand adjacent to the lower end of the upper front plate. Further, as shown in Patent Document 1 below, in an upright piano, a musical score receiving structure using an open keyboard lid as a music stand is also known.

Japanese Patent No. 3893772

However, in any of the musical score receiving structures, there is only one place to put the musical score. Therefore, even if it is desired to make it easier to see or suppress the feeling of oppression according to the user's physique and preference, there is no choice in the place and method of placing the musical score.

One object of the present invention is to provide a musical score receiving structure of a keyboard instrument capable of selecting a position and an angle when placing a musical score without using an auxiliary musical score board or the like.

According to one embodiment of the present invention, the musical score is composed of a back receiving portion that receives the back surface of the musical score, a first receiving portion that can receive the lower end of the musical score, and a member different from the first receiving portion. Provided is a musical score receiving structure for a keyboard instrument, which has a second receiving portion capable of receiving the lower end and having an inclination angle formed in the horizontal direction different from that of the first receiving portion.

According to one embodiment of the present invention, the position and angle at which the musical score is placed can be selected without using an auxiliary musical score board or the like.

It is a partial perspective view of a keyboard instrument to which a musical score receiving structure is applied. It is a schematic side view of the vicinity of the keyboard lid of a keyboard instrument (the keyboard lid is fully closed). It is a schematic side view of the vicinity of the keyboard lid of a keyboard instrument (the keyboard lid is fully opened). It is a schematic side view of the area from the front roof to the front plate of the lid.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a partial perspective view of a keyboard instrument to which the musical score receiving structure according to the embodiment of the present invention is applied. The keyboard instrument 10 is configured as, for example, an upright piano. FIG. 1 is a view of the keyboard instrument 10 as viewed from the upper right front. Hereinafter, the side on which the performer who plays the keyboard instrument 10 is located is referred to as the front side with respect to the keyboard instrument 10. The left-right direction is based on the direction of the keyboard instrument 10 as seen by the performer.

A master plate 12 (only the one on the right side is shown) is provided on both the left and right sides of the keyboard instrument 10. A roof is arranged on the main plate 12, and in FIG. 1, the front roof 11 of the roofs is shown. Arms 13 (only the one on the right side is shown) are arranged on the left and right sides in front of the main plate 12. An upper front plate 18 is arranged below the front roof 11 between the two main plates 12. A music stand 20 is arranged adjacent to the lower end 18b of the upper front plate 18 on the front side. The keyboard instrument 10 has a keyboard lid 30 that can be opened and closed. FIG. 1 shows a fully open state of the keyboard lid 30.

2 and 3 are schematic side views of the keyboard instrument 10 in the vicinity of the keyboard lid 30. 2 and 3, respectively, show a fully closed state and a fully open state of the keyboard lid 30. The keyboard instrument 10 has a keyboard 17. The keyboard lid 30 is configured to cover the keyboard 17 when it is fully closed and to expose the keyboard 17 when it is fully open. Inside the keyboard instrument 10, shaft members 16, guide members 15, and stoppers 14 are provided on both left and right sides (only the one on the left side is shown). The shaft member 16, the guide member 15, and the stopper 14 are all fixed to the corresponding arm 13. The shaft member 16 is rotatable about the rotation center 16a. An action mechanism (not shown) is arranged behind the stopper 14.

The keyboard lid 30 is mainly composed of a front lid 31, a rear lid 32, and a connecting portion 33. The front lid 31 and the rear lid 32 are rotatably connected to each other by a connecting portion 33 such as a hinge. Guided portions 35 are provided at both left and right ends of the rear lid 32. The guided portion 35 is in constant contact with the guide surface 15a, which is the upper surface of the corresponding guide member 15. The side view shape of the tip of the guided portion 35 is arcuate. The front lid 31 is fitted to the shaft member 16 and is rotatable about the rotation center 16a together with the shaft member 16.

The opening / closing operation of the keyboard lid 30 is usually performed by mainly gripping the handle 34b of the lid front plate 34 of the front lid 31. First, when the user holds the front lid plate 34 and rotates the front lid 31 upward from the fully closed state (FIG. 2), the rear lid 32 moves rearward in conjunction with the rotation of the front lid 31. To go. At that time, the guided portion 35 slides on the guide surface 15a while contacting the guide surface 15a of the guide member 15. The rear lid 32 smoothly retracts while gradually changing its posture. As shown in FIG. 3, when the guided portion 35 hits the stopper 14, the keyboard lid 30 is fully opened. In the fully open state, the lid front plate 34 slips under the music stand 20.

Next, the musical score receiving structure for receiving the musical score will be described. FIG. 4 is a schematic side view of the region from the front roof 11 to the front lid plate 34. FIG. 4 shows a fully open state of the keyboard lid 30 as in FIG. The front surface 18a of the upper front plate 18 receives the back surface of the musical score 19. Therefore, the upper front plate 18 serves as a back receiving portion. The inclination angle θ3 of the front surface 18a with respect to the vertical direction is more than 10 ° and 30 or less, preferably more than 15 ° and 20 ° or less. Conventionally, the inclination angle of the front surface of the upper front plate is generally less than 10 °. In the present embodiment, the front surface 18a is tilted more backward, so that the feeling of oppression is reduced. When expressed with reference to the horizontal direction, the rising angle of the front surface 18a from the horizontal direction is 60 ° or more and less than 80 °.

On the other hand, in the present embodiment, as will be described later, there are two receiving portions capable of receiving the lower end 19a of the musical score 19. The first receiving portion of the two receiving portions is an inclined surface 23 formed on the music stand 20. The second receiving portion is composed of an inclined portion 34a and a handle 34b formed on the keyboard lid 30 (FIG. 3 and the like). The handle 34b functions as a musical score holder. The handle 34b prevents the lower end of the musical score placed on the inclined portion 34a from shifting and rising, so that the musical score is stably placed. The second receiving portion may be composed of only the inclined portion 34a, omitting the handle 34b having the function of holding the score.

First, as shown in FIG. 4, the upper front plate 18 and the music stand 20 are composed of separate members. The music stand 20 is fixed to the lower end 18b of the upper front plate 18. The upper surface portion 21 is a portion of the music stand 20 that protrudes forward from the lower end portion 18b of the upper front plate 18 and is exposed. The upper surface portion 21 includes a horizontal plane 22 and an inclined surface 23 (first receiving portion). A horizontal plane 22 is connected in front of the inclined surface 23.

The inclined portion 34a is a part of the outer surface of the lid front plate 34 of the keyboard lid 30 in the fully open state, and is a part of the surface facing upward when the keyboard lid 30 is in the fully open state. When the keyboard lid 30 is fully opened, the inclined portion 34a is located in front of the inclined surface 23. Let θ1 be the inclination angle formed by the inclined surface 23 with respect to the horizontal direction. Let θ2 be the inclination angle formed by the inclined portion 34a with respect to the horizontal direction. The tilt angle θ2 is larger than the tilt angle θ1. Further, the inclined surface 23 is inclined so as to be lower toward the rear, and forms approximately 90 ° with respect to the front surface 18a of the upper front plate 18. The inclination angle θ1 is more than 10 ° and less than 30 °. For example, if θ3 = 15 °, then θ1 = 15 °.

When the inclined surface 23 (first receiving portion) is used, the inclined surface 23 receives the lower end 19a of the musical score 19, and the musical score 19 leans against the front surface 18a of the upper front plate 18. Since the inclined surface 23 and the front surface 18a are substantially vertical, the lower end 19a of the musical score 19 is suppressed from shifting forward and is stably held. Therefore, there is no need for a stop bar as in a conventional music stand. It should be noted that the provision of the horizontal plane 22 has an advantage that the inclined surface 23 does not become too deep as compared with the case where the entire upper surface portion 21 is the inclined surface 23.

When the inclined portion 34a is used as a musical score support, the inclined portion 34a receives the lower end 19a of the musical score 19 and the musical score 19 leans against the front surface 18a of the upper front plate 18. When the keyboard lid 30 is fully opened, the width B1 of the inclined portion 34a protruding forward from the music stand 20 is larger than the conventional one. Therefore, it is easy to place the musical score 19. Further, the front end position of the inclined portion 34a in the fully opened keyboard lid 30 is set to P1. The upper end position of the front surface 18a of the upper front plate 18 is P2. The upper front end position of the music stand 20, which is a member constituting the first receiving portion (inclined surface 23), is P3. In the side view, the upper front end position P3 of the music stand 20 is located behind the line segment L1 connecting the front end position P1 and the upper end position P2. Due to such a positional relationship, the musical score 19 can be appropriately placed on the inclined portion 34a so as not to hit the music stand 20.

As described above, the musical score receiving structure of the present embodiment has an upper front plate 18 as a back receiving portion for receiving the back surface of the musical score 19. Further, the musical score receiving structure has an inclined surface 23 (first receiving portion) of the music stand 20 and an inclined surface 23 having an inclined angle formed in the horizontal direction as a receiving portion capable of receiving the lower end 19a of the musical score 19. Has different inclined portions 34a.

According to the present embodiment, the inclined surface 23 is inclined so as to be lower toward the rear and forms approximately 90 ° with respect to the front surface 18a of the upper front plate 18. With this configuration, when the inclined surface 23 is used, the lower end 19a of the musical score 19 is less likely to shift, and the musical score 19 can be placed stably.

According to the present embodiment, the inclination angle θ3 of the front surface 18a with respect to the vertical direction is more than 10 ° and 30 ° or less, and the front surface 18a is tilted backward as compared with the conventional case. By setting this angle, it is possible to reduce the feeling of oppression during performance. It should be noted that the fact that the inclined surface 23 forms approximately 90 ° with respect to the front surface 18a leads to making the front surface 18a tiltable backward as compared with the conventional case in order to stably hold the musical score 19.

In this way, the user can stably place the musical score 19 according to his / her own physique and preference, and can make it easier to see and suppress the feeling of oppression.

Further, when the keyboard lid 30 is fully opened, the inclined portion 34a is located in front of the inclined surface 23, and the inclination angle θ2 of the inclined portion 34a is larger than the inclination angle θ1 of the inclined surface 23. Therefore, no matter which receiving portion the musical score is placed on, the lower end is hard to shift and is stable.

Further, in the side view, the upper front end position P3 of the music stand 20 is located behind the line segment L1 connecting the front end position P1 and the upper end position P2, so that when the inclined portion 34a is used, the music stand 20 is used. The music stand 19 can be placed appropriately so as not to hit.

The keyboard instrument to which the present invention is applied is not limited to an upright piano. The present invention can be applied to keyboard instruments other than upright pianos, such as grand pianos and celestas, as long as there are no structural restrictions.

In addition, in this embodiment, the ones with "abbreviation" are not intended to exclude completeness. For example, "approximately vertical" and "approximately 90 °" are intended to include completely vertical and 90 °, respectively.

Although the present invention has been described in detail based on the preferred embodiments thereof, the present invention is not limited to these specific embodiments, and various embodiments within the scope of the gist of the present invention are also included in the present invention. included.

The present specification includes the following inventions.
1. 1. It is possible to receive the back surface of the musical score, and it is a music stand adjacent to the lower end of the upper front plate and the upper front plate that is inclined to the rear, and is inclined so as to be lower toward the rear and is attached to the upper front plate. A musical score receiving structure for a keyboard instrument, which has an inclined surface forming approximately 90 ° with respect to the musical score, and has the music stand on which the inclined surface can receive the lower end of the musical score.
2. The musical score receiving structure of the keyboard instrument according to 1 above, wherein the inclination angle of the upper front plate with respect to the vertical direction exceeds 10 ° and is 30 ° or less.
3. 3. The musical score receiving structure of the keyboard instrument according to 1 or 2, wherein the music stand has a horizontal plane connected to the front of the inclined surface.
4. A keyboard instrument having a musical score receiving structure for the keyboard instrument according to any one of 1 to 3 above.

18 Upper front plate, 19 musical score, 19a lower end, 23 inclined surface, 34a inclined part

Claims (9)

The back receiving part that receives the back of the score and
The first receiving part capable of receiving the lower end of the musical score and
It is composed of a member different from the first receiving portion, can receive the lower end of the musical score, and has a second receiving portion having an inclination angle formed in the horizontal direction different from that of the first receiving portion. Musical score receiving structure for keyboard instruments. The back receiving portion is an upper front plate.
The musical score receiving structure for a keyboard instrument according to claim 1, wherein the first receiving portion is formed on a music stand adjacent to a lower end portion of the upper front plate. The second receiving portion is a part of the outer surface of the front plate of the lid in the open state of the keyboard lid, and is an inclined portion located in front of the first receiving portion in the open state of the keyboard lid, and a musical instrument holder. The musical score receiving structure of the keyboard instrument according to claim 1 or 2, which is composed of and. When viewed from the side, the upper front end position of the member constituting the first receiving portion is rearward than the line segment connecting the front end position of the second receiving portion and the upper end position of the back receiving portion in the keyboard lid in the open state. The musical score receiving structure of the keyboard instrument according to claim 3, which is located in. The back receiving portion is inclined rearward and
The musical score of the keyboard instrument according to any one of claims 1 to 4, wherein the first receiving portion is an inclined surface that is inclined so as to be lower toward the rear and forms approximately 90 ° with respect to the back receiving portion. Receiving structure. A keyboard instrument having a musical score receiving structure for the keyboard instrument according to any one of claims 1 to 5. It is possible to receive the back of the score, and the upper front plate that is inclined backward by more than 10 ° and 30 ° or less with respect to the vertical direction.
An upright piano having a music stand adjacent to the lower end of the upper front plate and having an inclined surface capable of receiving the lower end of the music. The upright piano according to claim 7, wherein the inclined surface is inclined so as to be lower toward the rear and forms approximately 90 ° with respect to the upper front plate. The upright piano according to claim 7 or 8, wherein the music stand has a horizontal plane connected to the front of the inclined surface.

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