Musical instrument

Abstract

To provide a musical instrument with a music stand receiver that allows for proper placement of sheet music, etc., even in a compact body.SOLUTION: An electronic keyboard instrument comprises: a front side top panel 36F provided on the upper surface side of a main body case; a music stand 40 provided on the front side top panel 36F; a main adjustment bracket 50 that supports the music stand 40 at an adjusted angle relative to the front side top panel 36F of the music stand 40; and a music receiver 50 provided near the front side of the music stand 40 of the front side top panel 36F and having a protruding flange portion 50a3 provided so that it protrudes toward the music stand 40 side, having a housing space SP in which a portion of the music stand 40 enters between the protruding flange portion 50a3 and the front side top panel 36F during rotation of the main adjustment bracket 50.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to musical instruments.

Background Art

[0002] Conventionally, musical instruments having a configuration capable of adjusting the inclination angle of a music score for making a music score are known. For example, in Patent Document 1, there is disclosed a music score stand device that is disposed on a ridge plate or the like of a keyboard musical instrument and includes a music score board (music score stand), a music score stopper (music score receiver) provided close to the front side of the music score board, and a hinge for adjusting the inclination angle of the music score board with respect to the roof plate.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the music score stand device disclosed in the above Patent Document 1, in the case of a compact (low height on the upper surface) housing, there is a problem that the height for arranging the music score or the like is too low.

[0005] An object of the present invention is to provide a musical instrument having a music score receiver capable of satisfactorily arranging a music score or the like even in a compact housing.

Means for Solving the Problems

[0006] The musical instrument of the present invention includes an upper panel provided on the upper surface side of the housing, a music stand provided on the upper panel, a rotating member that supports the music stand in a state where the inclination angle of the music stand with respect to the upper panel is adjusted, and a music stand receiver provided in the vicinity of the front side of the music stand on the upper panel and having a first protruding portion provided so as to protrude toward the music stand side, the music stand receiver having a space into which a part of the music stand enters between the first protruding portion and the upper panel during rotation of the rotating member.

Effect of the Invention

[0007] According to the present invention, it is possible to provide a musical instrument having a music stand receiver that can favorably arrange a music score or the like even in a compact housing.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Mode for Carrying Out the Invention

[0009] Embodiments of the present invention will be described with reference to the drawings. The electronic keyboard musical instrument (musical instrument) 1 shown in FIG. 1 includes a main body portion 10 and leg portions 100. As shown in FIGS. 1 and 2, the main body portion 10 includes a keyboard covered by a key cover 22 and a main body case (housing) 30 that surrounds and holds the keyboard. The plurality of keys constituting the keyboard are arranged along the longitudinal direction of the main body case 30 and extend along the short side direction. The leg portions 100 include a pair of side plate members 110, a pedal frame 120, and a pedal device 130. Hereinafter, the arrangement direction (X-axis direction) of the plurality of keys of the keyboard is the left-right direction (the X-axis positive direction is the left direction), the extending direction (Y-axis direction) of each key is the front-rear direction (the Y-axis positive direction is the front direction), and the up-down direction (Z-axis direction) of the electronic keyboard musical instrument 1 is the up-down direction (the Z-axis positive direction is the upward direction) for explanation.

[0010] As shown in FIG. 1, the pair of side plate members 110 are plate-like members that are erected on the installation surface on both the left and right sides of the electronic keyboard musical instrument 1 with both plate surfaces facing the left-right direction and support the main body case 30. The pedal frame 120 connects between the side plate members 110 below each side plate member 110. The pedal device 130 is provided at approximately the center in the left-right direction of the pedal frame 120.

[0011] As shown in FIGS. 1 and 2, the main body case 30 is horizontally long and substantially rectangular with the longitudinal direction being the left-right direction when viewed from above, and has thick plate-like members such as a front panel 32, a rear panel 33, a left side panel 34, a right side panel 35, a front side top plate (upper panel) 36F, a rear side top plate 36B, and a bottom panel 37, and is substantially L-shaped when viewed from the side. The front panel 32 is substantially rectangular and long in the left-right direction, and is provided below the lower part of the front end of the main body 10 and below the keyboard 20 to form the front surface of the main body case 30. A power button 32a is provided at the right end of the front panel 32. The rear panel 33 is substantially rectangular and long in the left-right direction, and is provided behind the main body 10 to form the rear surface of the main body case 30.

[0012] The left side panel 34 and the right side panel 35 are substantially rectangular and long in the front-rear direction, and are provided on the left side and the right side of the main body 10 respectively to form the left side surface and the right side surface of the main body case 30. The front side top plate 36F is substantially rectangular and long in the left-right direction, and is provided in front of the rear side part above the main body 10 to form a part of the upper surface of the main body case 30. The rear side top plate 36B is substantially rectangular and long in the left-right direction, and is provided behind the rear side part above the main body 10 to form a part of the upper surface of the main body case 30. The rear side top plate 36B is rotatably attached to the rear panel 33 so that the front side opens. Below the front side top plate 36F, a substantially rectangular thick plate-like display member 38 that is long in the left-right direction is attached with both plate surfaces facing the front-rear direction. Information regarding the performance of the electronic keyboard instrument 1, for example, is displayed on the front surface of the display member 38.

[0013] The front top board 36F is a flat surface parallel to the installation surface of the electronic keyboard instrument 1. At approximately the center in the left-right direction of the front top board 36F, a score stand 40 in the shape of a substantially rectangular thick plate that is long in the left-right direction for standing the score MS is attached so that both plate surfaces face in the front-rear direction during performance. Further, during performance, the score stand 40 is in a posture where the upper side is tilted backward. The score MS is stood on the front surface 40a of the score stand 40. On the front side of the lower end portion of the score stand 40 on the upper surface of the front top board 36F, a score receiver 50 for receiving the lower end portion of the score MS stood on the score stand 40 is provided. The score receiver 50 has a pedestal shape that is long in the left-right direction and is provided in a shape close to the lower end portion of the score stand 40.

[0014] As shown in FIG. 2, on the rear surface 40b side of the score stand 40, a main adjustment fitting (rotating member) 60 for adjusting the tilt angle of the score stand 40 with respect to the front top board 36F and two sub-adjustment fittings (auxiliary rotating members) 70 that are smaller than the main adjustment fitting 60 are provided. The score stand 40 is attached to the front top board 36F via the main adjustment fitting 60 and each sub-adjustment fitting 70. The main adjustment fitting 60 is provided at approximately the center in the left-right direction on the rear surface 40b side of the score stand 40. Each sub-adjustment fitting 70 is provided on both sides in the left-right direction on the rear surface 40b side of the score stand 40. The main adjustment fitting 60 and each sub-adjustment fitting 70 support the score stand 40 with respect to the front top board 36F. Hereinafter, the configurations of the score receiver 50, the main adjustment fitting 60, and the sub-adjustment fitting 70 will be described in detail. Note that in FIGS. 3 and later, the illustration of the score MS is omitted. Further, the score stand 40 may be defined as a concept including the score receiver 50, the main adjustment fitting 60, and the sub-adjustment fitting 70 provided on the front top board 36F.

[0015] As shown in Fig. 3, the pedestal-shaped sheet holder 50 has a front portion with a height dimension slightly larger than that of the rear portion, and its upper surface 50a is an inclined surface. The sheet holder 50 is attached to a substantially central portion in the left-right direction of the front-side top plate 36F, at a substantially front half portion of the upper surface of the front-side top plate 36F, and its front end portion is located near the front edge of the front-side top plate 36F. On the front portion of the upper surface 50a of the sheet holder 50, a recess (hereinafter referred to as "front recess 50a1") that is recessed so as to incline from the rear side toward the front side is provided across the left-right direction. In the recess 50a1, it is possible to stand something with a larger thickness and weight compared to a sheet MS, such as a smartphone.

[0016] Also, on both the left and right sides of the boundary between the upper surface 50a of the sheet holder 50 and the front recess 50a1, two openings 50a2 that open upward are respectively provided. Inside each opening 50a2, pins 52 for suppressing the sheet MS placed on the sheet stand 40 are respectively accommodated. Each pin 52 is provided so as to be freely pulled out upward from each opening 50a2.

[0017] Both the left and right side portions of the sheet holder 50 respectively protrude wall-like to the rear side of the rear surface 50b of the sheet holder 50. (Hereinafter, these protruding portions are referred to as "side protruding portions 50c"). At the rear end portion of the upper surface 50a of the sheet holder 50, a protruding flange portion (first protruding portion) 50a3 that protrudes in a flange shape to the rear side of the rear surface 50b is provided. The protruding flange portion 50a3 is provided across the entire left-right direction of the rear end portion of the upper surface 50a, and its tip portion is chamfered (see Fig. 8). Also, at the lower end portion of the rear surface 50b of the sheet holder 50, a protruding plate portion (second protruding portion) 50b1 that protrudes in a plate shape to the rear side of the rear surface 50b is provided. The protruding plate portion 50b1 is provided at a substantially central portion in the left-right direction of the lower end portion of the rear surface 50b.

[0018] The portion surrounded by the rear surface 50b of the music sheet holder 50, each side protruding portion 50c, the protruding flange portion 50a3, and the protruding plate portion 50b1 (between the protruding flange portion 50a3 and the front side top plate 36F) forms a space recessed forward (hereinafter referred to as the "accommodation space SP"). As will be described later, a part of the music sheet stand 40 is accommodated in this accommodation space SP when the angle of the music sheet stand 40 is adjusted. Also, as will be described later, the music sheet stand 40 abuts against the protruding flange portion 50a3 and the protruding plate portion 50b1 when it has an inclination angle that is substantially upright with respect to the front side top plate 36F. Note that a plurality of ribs 54 extending in a rib shape in the vertical direction are provided at intervals in the left-right direction on the rear surface 50b, which is the surface on the accommodation space SP side. Each rib 54 is provided so as to support the protruding flange portion 50a3 and reinforces the protruding flange portion 50a3 in the vertical direction.

[0019] As shown in FIG. 3, the main adjustment fitting 60 has a substantially rectangular plate-shaped first plate portion (first plate-shaped member) 61, a substantially rectangular plate-shaped second plate portion (second plate-shaped member) 62, and a substantially rectangular plate-shaped third plate portion (third plate-shaped member) 63. One end portion of the second plate portion 62 is rotatably connected to one end portion of the first plate portion 61 via a first hinge H1. The other end portion of the second plate portion 62 (the end portion on the side opposite to the side connected to the first plate portion 61) is rotatably connected to one end portion of the third plate portion 63 via a second hinge H2. The main adjustment fitting 60 is attached by screwing the first plate portion 61 to the front side top plate 36F so that the first hinge H1 and the second hinge H2 rotate around an axis along the left-right direction (X-axis direction). The main adjustment fitting 60 has a substantially triangular shape when viewed from the side when the second plate portion 62 is rotated upward and the third plate portion 63 is rotated toward the first plate portion 61 side.

[0020] As shown in FIG. 4, five screw holes of the same shape (hereinafter referred to as "first screw holes 61a") are provided in two rows at intervals in the left - right direction at approximately the center of the first plate portion 61. On the portion of the first plate portion 61 closer to the first hinge H1, a pair of first claw portions 61b formed in a claw - folding shape so as to bend substantially at a right angle outward (downward) from the plate surface of the first plate portion 61 are provided at intervals in the left - right direction. Further, on the portion of the first plate portion 61 closer to the side opposite to the first hinge H1, a first engaging portion 61c1, a second engaging portion 61c2, and a third engaging portion 61c3 formed in a claw - folding shape so as to bend substantially at a right angle inward (upward) from the plate surface of the first plate portion 61 are provided at intervals in the front - rear direction in order from the end side.

[0021] The first claw portions 61b are claw - folded in such a shape that both surfaces of the portion bent at a substantially right angle face in the left - right direction. The first engaging portion 61c1, the second engaging portion 61c2, and the third engaging portion 61c3 are each provided longitudinally in the left - right direction and are claw - folded in such a shape that both surfaces of the portion bent at a substantially right angle face in the front - rear direction. At the claw - folded base ends of the respective engaging portions 61c1, 61c2, 61c3, the other ends of the third plate portion 63 rotated toward the first plate portion 61 side (the ends on the side opposite to the side connected to the second plate portion 63) are respectively abutted and engaged from the front side. By engaging the other ends of the third plate portion 63 with the respective engaging portions 61c1, 61c2, 61c3, the other ends of the third plate portion 63 are fixed in the front - rear direction, and the main adjustment fitting 60 is held in a posture in which the second plate portion 62 is inclined with respect to the front - side top plate 36F.

[0022] On the portion of the second plate portion 62 closer to the first hinge H1, three screw holes of the same shape (hereinafter referred to as "second screw holes 62a1") are provided in a row at intervals in the left - right direction. On the portion of the second plate portion 62 closer to the second hinge H2, three screw holes of the same shape (hereinafter referred to as "third screw holes 62a2") are provided in a row at intervals in the left - right direction. At approximately the center of the second plate portion 62, a pair of second claw portions 62b formed in a claw - folding shape so as to bend substantially at a right angle outward (front - side) from the plate surface of the second plate portion 62 are provided at intervals in the left - right direction. The second claw portions 62b are claw - folded in such a shape that both surfaces of the portion bent at a substantially right angle face in the left - right direction.

[0023] On one plate surface of the third plate portion 63 (the plate surface that faces the first plate portion 61 when rotated toward the first plate portion 61), three bulging portions 63a are formed so as to bulge toward the first plate portion 61 and extend from one end side to the other end side of the third plate portion 63, and are provided at intervals in the left - right direction. As shown in FIG. 8, each bulging portion 63a is arranged so as not to interfere with the first engaging portion 61 when the first hinge H1 is rotated so that the second plate portion 62 and the third plate portion 63 are tilted toward the first plate portion 61 without the second hinge H2 being rotated.

[0024] As shown in FIG. 3, each sub - adjusting fitting 70 has a substantially rectangular plate - shaped fourth plate portion (fourth plate - shaped member) 71 and a substantially rectangular plate - shaped fifth plate portion (fifth plate - shaped member) 72. One end portion of the fourth plate portion 71 is rotatably connected to one end portion of the fifth plate portion 72 via a third hinge H3. Each sub - adjusting fitting 70 is attached by screwing the fourth plate portion 71 to the front top plate 36F so that the third hinge H3 rotates about an axis along the left - right direction (X - axis direction). The music - sheet stand 40 is attached by screwing to the fifth plate portion 72 of each sub - adjusting fitting 70. Note that the third hinge H3 is a torque hinge, and the fifth plate portion 72 stops at an arbitrary position rotated with respect to the fourth plate portion 71 via the third hinge H3.

[0025] Next, with reference to FIG. 5, the attachment mode of the main - adjusting fitting 60 to the front top plate 36F will be described. The main - adjusting fitting 60 is attached to the front top plate 36F with the first plate portion 61 positioned with respect to the front top plate 36F. That is, on the portion of the front top plate 36F where the first plate portion 61 is attached, a positioning hole (not shown) for engaging the first claw portion 61b is provided in a form corresponding to the first claw portion 61b. By engaging the first claw portion 61b with this positioning hole, the first plate portion 61 is positioned on the front top plate 36F (see FIG. 5). Thereafter, the first plate portion 61 is attached to the front top plate 36F by screwing with the first attachment screw S1 inserted through each first screw hole 61a.

[0026] In addition, in the main adjustment fitting 60, since each first screw hole 61a is provided at a position farther from the first hinge H1 than the first claw portion 61b, when screwing the first plate portion 61 to the front top plate 36F after positioning the first plate portion 61 with respect to the front top plate 36F during the attachment process of the main adjustment fitting 60, it is easy for a screwing tool or the like to reach above each first screw hole 61a, facilitating the screwing operation.

[0027] Next, with reference to FIG. 5, the attachment mode of the score stand 40 to the main adjustment fitting 60 will be described. The score stand 40 is attached by being screwed to the second plate portion 62 of the main adjustment fitting 60. The second plate portion 62 is attached to the rear surface 40b of the score stand 40 in a state of being positioned with respect to the score stand 40. That is, a positioning hole (not shown) to which the second claw portion 62b is engaged is provided in a form corresponding to the second claw portion 62b at the portion of the rear surface 40b of the score stand 40 where the second plate portion 62 is attached. By engaging the second claw portion 62b with this positioning hole, the second plate portion 62 is positioned on the rear surface 40b of the score stand 40 (see FIG. 5). Thereafter, the second plate portion 62 is screwed and attached to the rear surface 40b of the score stand 40 by the second attachment screws S2 inserted through each second screw hole 62a1 and the third attachment screws S3 inserted through each third screw hole 62a2.

[0028] The score stand 40 attached to the front top plate 36F via the main adjustment fitting 60 and the sub-adjustment fitting 70 as described above can adjust the tilt angle with respect to the front top plate 36F by changing the engagement position of the third plate portion 63 of the main adjustment fitting 60 among the respective engagement portions 61c1, 61c2, 61c3 according to the performer and rotating the fifth plate portion 72 of each sub-adjustment fitting 70. Note that when the score stand 40 is tilted at an angle with respect to the front top plate 36F, at least a part of its lower end portion (on the front surface 40a side) is accommodated in the accommodation space SP (see FIGS. 6 and 7).

[0029] Also, as shown in FIG. 8, in the main adjustment fitting 60, by rotating the first hinge H1 so that the second plate portion 62 and the third plate portion 63 are tilted toward the first plate portion 61 without rotating the second hinge H2, the music stand 40 can be tilted backward. At this time, as described above, since each bulging portion 63a of the third plate portion 63 does not interfere with the first engaging portion 61c1, the first hinge H1 can be rotated until the first engaging portion 61c1 abuts against the plate surface of the third plate portion 63, and the music stand 40 can be tilted until it is parallel to the front top plate 36F. In the state where the music stand 40 is tilted in this way, the lower end portion of the music stand 40 is separated from the accommodation space SP.

[0030] Next, with reference to FIGS. 6 and 7, a specific adjustment method for adjusting the tilt angle of the music stand 40 with respect to the front top plate 36F will be described. Hereinafter, only the operation on the main adjustment fitting 60 will be described, and for each sub-adjustment fitting 70, it is assumed that the fifth plate portion 72 is rotated and held in accordance with the tilt angle of the second plate portion 62 of the main adjustment fitting 60. From the state where the music stand 40 shown in FIG. 8 is tilted, the second plate portion 62 and the third plate portion 63 are rotated to raise the music stand 40, and as shown in FIG. 6(a), by engaging the other end portion of the third plate portion 63 with the first engaging portion 61c1, the music stand 40 can be supported by the main adjustment fitting 60 in a state where the tilt angle θ1 of the music stand 40 with respect to the front top plate 36F is, for example, 56.6°.

[0031] Further, the music stand 40 enters the accommodation space SP with the front surface 40a side of its lower end at a predetermined inclination angle from the tilted state shown in FIG. 8 to the state with the inclination angle θ1 shown in FIG. 6(a). When the inclination angle of the music stand 40 is equal to or greater than the predetermined angle, the front surface 40a side of the lower end of the music stand 40 is in a state of entering the accommodation space SP. Therefore, it is allowed to adjust the inclination angle of the music stand 40 in a state where the music stand 40 is close to the music receiver 50 as in the present embodiment. In the state where the music stand 40 has the inclination angle θ1 shown in FIG. 6(a), the distance of the gap G1 provided between the front surface 40a of the music stand 40 and the tip of the protruding flange portion 50a3 of the music receiver 50 is, for example, 4.6 mm.

[0032] In addition, in the state shown in FIG. 6(a), even if an excessive rearward downward force F1 is applied above the main adjustment fitting 60 of the front surface 40a of the music stand 40, since the portion of the second plate portion 62 closer to the first hinge H1 is screwed to the music stand plate 40 by the second mounting screw S2, it is possible to prevent the music stand 40 from coming off the main adjustment fitting 60.

[0033] From the state shown in FIG. 6(a), the second plate portion 62 and the third plate portion 63 are rotated to further raise the music stand 40. As shown in FIG. 6(b), by engaging the other end of the third plate portion 63 with the second engaging portion 61c2, the music stand 40 can be supported by the main adjustment fitting 60 in a state where the music stand 40 is erected so that the inclination angle θ2 with respect to the front top plate 36F of the music stand 40 is, for example, 64.6°. In this state, the distance of the gap G2 provided between the front surface 40a of the music stand 40 and the tip of the protruding flange portion 50a3 of the music receiver 50 is, for example, 3.5 mm. That is, the music stand 40 is in a state closer to the protruding flange portion 50a3 (a state closer to the upright state of the music stand 40) than the state shown in FIG. 6(a).

[0034] From the state shown in FIG. 6(b), the second plate portion 62 and the third plate portion 63 are rotated to further raise the music stand 40. As shown in FIG. 7(a), by engaging the other end portion of the third plate portion 63 with the third engaging portion 61c3, the music stand 40 can be supported by the main adjusting fitting 60 in a state where the inclination angle θ3 of the music stand 40 with respect to the front top plate 36F is, for example, 72.6°. In this state, the distance of the gap G3 provided between the front surface 40a of the music stand 40 and the tip of the protruding flange portion 50a3 of the music receiving member 50 is, for example, 2.2 mm. That is, the music stand 40 is in a state closer to the protruding flange portion 50a3 (a state closer to the upright state of the music stand 40) than the state shown in FIG. 6(b).

[0035] From the state shown in FIG. 7(a), the third plate portion 63 is disengaged from the third engaging portion 61c3, and the second plate portion 62 and the third plate portion 63 are rotated to further raise the music stand 40. As shown in FIG. 7(b), when the music stand 40 is made substantially upright with respect to the front top plate 36F until the inclination angle θ4 of the music stand 40 with respect to the front top plate 36F is, for example, 82°, the lower end of the music stand 40 abuts on the plate surface of the second protruding portion 50b1 that extends in a plate shape, and the music stand 40 is prevented from tilting further forward. That is, the second protruding portion 50b1 functions as a stopper for preventing the music stand 40 from tilting excessively forward.

[0036] In the state where the music stand 40 is substantially upright with respect to the front top plate 36F as shown in FIG. 7(b) (the state where the lower end of the music stand 40 abuts on the second protruding portion 50b1), the distance of the gap G4 (see the enlarged view E1 shown in FIG. 7(b)) provided between the front surface 40a of the music stand 40 and the tip of the protruding flange portion 50a3 of the music receiving member 50 is, for example, 0.3 mm. In a state where a minute gap is provided between the music stand 40 and the protruding flange portion 50a3 (in other words, a state where the front surface 40a of the music stand 40 is close to the tip of the protruding flange portion 50a3), since the music stand 40 is prevented from tilting further forward, the music stand is prevented from abutting on the protruding flange portion 50a3, and scratches and marks caused by the protruding flange portion on the front surface of the music stand are prevented.

[0037] Also, when raising the music score stand 40 to a substantially upright state as shown in FIG. 7(b), even if excessive force is applied to the music score stand 40 and the music score stand 40 collides with the tip of the protruding flange portion 50a3, the tip of the protruding flange portion 50a3 is chamfered, so that scratches or marks caused by the protruding flange portion 50a3 on the front surface 40a of the music score stand 40 are suppressed from being formed. In the state shown in FIG. 7(b), even if an excessive forward upward force F2 is applied to a position above the main adjustment fitting 60 on the rear surface 40b of the music score stand 40, since the portion of the second plate portion 62 closer to the second hinge H2 is screwed to the music score plate 40 by the third mounting screw S3, the music score stand 40 is suppressed from coming off the main adjustment fitting 60.

[0038] As described above, in the electronic keyboard instrument 1, the inclination angles of the music score stand 40 can be adjusted to the inclination angles θ1, θ2, θ3 at which the other end portions of the third plate portion 63 are engaged with the respective engaging portions 61c1, 61c2, 61c3, and the music score stand 40 can be supported by the main adjustment fitting 60 in each state. When adjusting the inclination angle in this way, at least a part of the lower end portion of the music score stand enters the accommodation space, so that the music score stand does not interfere with the music score receiver. Therefore, the music score stand can be provided close to the music score receiver, and the space on the front side top plate 36F can be saved. Further, by raising the music score stand 40 to a substantially upright state with respect to the front side top plate 36F, the lower end of the music score stand 40 abuts against the second protruding portion 50b1, so that the music score stand 40 can be prevented from tilting further forward (falling forward).

[0039] As described above, the electronic keyboard instrument 1 according to the present embodiment includes a front side top plate 36F provided on the upper surface side of the main body case 30, a music score stand 40 provided on the front side top plate 36F, a main adjustment fitting 50 that supports the music score stand 40 in a state where the inclination angle of the music score stand 40 with respect to the front side top plate 36F is adjusted, and a music score receiver 50 provided close to the front side of the music score stand 40 on the front side top plate 36F and provided so as to protrude toward the music score stand 40 side. The music score receiver 50 has a receiving space SP in which a part of the music score stand 40 enters between the protruding flange portion 50a3 and the front side top plate 36F during the rotation of the main adjustment fitting 50.

[0040] In the electronic keyboard instrument 1 of the present embodiment configured as described above, since a part of the music score stand 40 enters the accommodation space SP in a state where the inclination angle with respect to the front top plate 36F is adjusted, the music score receiver 50 can be provided close to the music score stand 40, and space saving of the front top plate 36F can be achieved. Thus, in the present embodiment, it is possible to realize the electronic keyboard instrument 1 having the music score receiver 50 that can favorably arrange the music score MS and the like even in a compact main body case 30.

[0041] Further, in the electronic keyboard instrument 1 according to the present embodiment, the music score stand 40 is close to the protruding flange portion 50a3 when the inclination angle with respect to the front top plate 36F is substantially upright. According to this configuration, by setting the inclination angle of the music score stand 40 to be substantially upright with respect to the front top plate 36F, the music score stand 40 is close to the protruding flange portion 50a3, so that it is possible to prevent the music score stand 40 from falling forward (toward the music score receiver 50) any further.

[0042] Further, in the electronic keyboard instrument 1 according to the present embodiment, the music score receiver 50 has a protruding plate portion 50b1 that extends on the front top plate 36F so as to protrude toward the music score stand 40 between the protruding flange portion 50a3 and the front top plate 36F, and the music score stand 40 abuts on the protruding plate portion 50b1 when the inclination angle with respect to the front top plate 36F is substantially upright. According to this configuration, by setting the inclination angle of the music score stand 40 to be substantially upright with respect to the front top plate 36F, the music score stand 40 abuts on the protruding plate portion 50b1 before abutting on the protruding flange portion 50a3, so that while preventing the music score stand 40 from falling forward any further, it is possible to prevent the music score stand 40 from being damaged or leaving marks or the like when the music score stand 40 abuts on the protruding flange portion 50a3.

[0043] In addition, in the electronic keyboard instrument 1 according to the present embodiment, the main adjustment fitting 50 has at least a first plate portion 61 attached to the front top plate 36F and a second plate portion 62 rotatably connected to the first plate portion 61 and attached to the music stand 40. By rotating the second plate portion 62 with respect to the first plate portion 61, the tilt angle of the music stand 40 with respect to the front top plate 36F is adjusted. According to this configuration, by rotating the second plate portion 62 of the main adjustment fitting 60 attached to the music stand 40 with respect to the first plate portion 61, the tilt angle of the music stand 40 with respect to the front top plate 36F can be adjusted. Therefore, while supporting the music stand 40, a specific configuration of the main adjustment fitting 50 for adjusting the tilt angle of the music stand 40 with respect to the front top plate 36F can be provided.

[0044] In addition, in the electronic keyboard instrument 1 according to the present embodiment, the main adjustment fitting 60 has a third plate portion 63 whose one end is rotatably connected to the second plate portion 62 on the side opposite to the first plate portion 61 side, and engaging portions 61c1, 61c2, 61c3 provided on the first plate portion 61 and engageable with the other end of the third plate portion 63. By engaging the third plate portion 63 with the engaging portions 61c1, 61c2, 61c3, the second plate portion 62 is held in a tilted posture with respect to the front top plate 36F. According to this, a specific configuration for holding the main adjustment fitting 60 in a state where the tilt angle of the music stand 40 with respect to the front top plate 36F is adjusted can be provided.

[0045] In addition, in the electronic keyboard instrument 1 according to the present embodiment, the main adjustment fitting 60 has a first engaging portion 61c1, a second engaging portion 61c2, and a third engaging portion 61c3 provided on the first plate portion 61 at intervals in the front-rear direction. According to this configuration, by changing the portion where the third plate portion 63 is engaged among the first engaging portion 61c1, the second engaging portion 61c2, and the third engaging portion 61c3, the tilt angle of the music stand 40 with respect to the front top plate 36F can be changed. Therefore, a specific configuration for holding the main adjustment fitting 60 in a state where the tilt angle of the music stand 40 with respect to the front top plate 36F is adjusted to a plurality of different tilt angles can be provided.

[0046] In the electronic keyboard instrument 1 according to the present embodiment, the music score holder 50 has a plurality of ribs 54 that support the protruding flange portion 50a3 on the surface (rear surface 50b) on the accommodation space SP side. According to this configuration, since the protruding flange portion 50a3 is reinforced by the plurality of ribs 54, the strength of the protruding flange portion 50a3 can be increased.

[0047] Further, in the electronic keyboard instrument 1 according to the present embodiment, a pair of sub-adjusting brackets 70 is provided, which includes a fourth plate portion 71 attached to the front top plate 36F and a fifth plate portion 72 rotatably connected to the fourth plate portion 71 and attached to the music score stand 40. When the size of the music score stand 40 is large with respect to the main adjusting bracket 60, the main adjusting bracket 60 alone cannot support the music score stand 40, and play may occur in the main adjusting bracket 60 when adjusting the inclination angle of the music score stand 40. According to the above configuration, since the music score stand 40 is supported by the sub-adjusting bracket 70 in addition to the main adjusting bracket 60, even when the size of the music score stand 40 is large, it is possible to prevent or suppress play from occurring in the main adjusting bracket 60 and the sub-adjusting bracket 70 when adjusting the inclination angle of the music score stand 40.

[0048] If an attempt is made to support the music score stand 40 only on the left and right sides of the rear surface of the music score stand 40, it is necessary to provide the main adjusting bracket 60 on both the left and right sides depending on the size of the music score stand 40. Further, even if the main adjusting bracket 60 is provided on one of the left and right sides and the sub-adjusting bracket 70 is provided on the other side, an excessive load may be applied to the sub-adjusting bracket 60, resulting in deformation of the sub-adjusting bracket 60 or damage to the vicinity of the mounting screw. On the other hand, as in the present embodiment, by providing the main adjusting bracket 60 at approximately the center in the left-right direction of the rear surface 40b of the music score stand 40 and providing the sub-adjusting brackets 70 on both the left and right sides thereof, the music score stand 40 can be stably supported even when the size of the music score stand 40 is large.

[0049] Note that the embodiments described above are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and its equivalent scope.

Description of Reference Numerals

[0050] 1 Electronic keyboard instrument 10 Main body 22 Key cover 30 Main body case 32 Front panel 33 Rear panel 34 Left side panel 35 Right side panel 36B Rear top plate 36F Front top plate 38 Display member 40 Sheet music stand 40a Front 40b Rear 50 Sheet music receiver 50a Upper surface 50a1 Front recess 50a2 Opening 50a3 Protruding flange 50b Rear 50b1 Protruding plate 50c Rear protruding part 52 Pin 60 Main adjustment fitting 61 First plate part 61a First screw hole 61b First claw part 61c1 First engaging part 61c2 Second engaging part 61c3 Third engaging part 62 Second plate part 62a1 Second screw hole 62a2 Third screw hole 62b Second claw part 63 Third plate part 63a Bulging part 70 Auxiliary adjustment fitting 71 Fourth plate part 72 Fifth plate part 100 Legs 110 Side plate member 120 Pedal frame 130 Pedal device F1, F2 Forces G1~G4 Clearances H1 First hinge H2 Second hinge H3 Third hinge MS Sheet music S1 First mounting screw S2 Second mounting screw S3 Third mounting screw SP Accommodation space θ1 to θ4 Inclination angles

Claims

1. An upper panel provided on the upper surface side of the housing, A music score stand provided on the upper panel, A rotating member that supports the music score stand in a state where the inclination angle of the music score stand with respect to the upper panel is adjusted, A music score receiver provided close to the front side of the music score stand on the upper panel and having a first protruding portion provided so as to protrude toward the music score stand side, the music score receiver having a space into which a part of the music score stand enters between the first protruding portion and the upper panel during rotation of the rotating member, An instrument.

2. The music score stand is close to or in contact with the first protruding portion when the inclination angle with respect to the upper panel is substantially upright, The instrument according to claim 1.

3. The music score receiver has a second protruding portion that extends on the upper panel so as to protrude toward the music score stand side between the first protruding portion and the upper panel, The music score stand is in contact with the second protruding portion when the inclination angle with respect to the upper panel is substantially upright, The instrument according to claim 1.

4. The rotating member has at least a first plate-like member attached to the upper panel and a second plate-like member rotatably connected to the first plate-like member and attached to the music score stand. By rotating the second plate-like member with respect to the first plate-like member, the inclination angle of the music score stand with respect to the upper panel is adjusted. The instrument according to claim 1.

5. The rotating member has a third plate-like member whose one end is rotatably connected to the second plate-like member on the side opposite to the first plate-like member side, and an engaging portion provided on the first plate-like member and engageable with the other end of the third plate-like member. When the third plate-like member is engaged with the engaging portion, the second plate-like member is held in an inclined posture with respect to the upper panel. The instrument according to claim 4.

6. The rotating member has a plurality of the engaging portions provided at intervals in the front-rear direction on the first plate-like member. The instrument according to claim 5.

7. The music score receiver has a rib that supports the first protruding portion on the surface on the space side. The instrument according to claim 1.

8. An auxiliary rotating member having a fourth plate-like member attached to the upper panel and a fifth plate-like member rotatably connected to the fourth plate-like member and attached to the music score stand. The instrument according to any one of claims 1 to 7.

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