CN108859491B - A page turning device in a piano score turning system - Google Patents

Abstract

The invention belongs to the technical field of musical instruments, and relates to a page-turning device in a piano score-turning system, which solves the problems in the prior art that the piano score-turning system relies heavily on an external power supply and the like. The piano includes a main body and a support column, and the support column is vertically fixed on the lower surface of the main body; the page turning device includes a turntable rotatably arranged on the upper surface of the main body, and a suction rod that can be moved to the top of the music score is fixed on the side wall of the turntable. A magnet capable of sucking up the notation pages of the musical score is provided; the page-turning device also includes a rotating shaft, which is arranged on the main body to rotate in a vertical direction, and a transmission mechanism capable of synchronizing the two is arranged between the upper end of the rotating shaft and the turntable, The lower end of the rotating shaft is provided with several levers. The present invention has the advantage that the spectrum can be turned without an external power supply.

Description

A page turning device in a piano score turning system

technical field

The invention belongs to the technical field of musical instruments, and relates to a page turning device in a piano score turning system.

Background technique

In the process of playing the piano, it is inevitable to turn the pages of the sheet music. If you turn the pages by hand, the performance will be stopped, which will affect the overall performance. If the piano is not stopped, another person next to you must turn the sheet music , however, this also requires the page-turning personnel to have a certain musical foundation and be able to achieve synchronization with the player's rhythm. At present, most of the automatic spectrum turners on the market are driven by motors, but most of the motors located in the piano are inconvenient to disassemble, resulting in the failure of normal maintenance of the motors.

In order to solve the above-mentioned problems, Chinese patent CN 207381087U discloses a music-turner for automatic piano, comprising a piano body, a music-playing groove is opened on one side of the piano body, a mounting groove is opened on the inner wall of the top of the music-playing groove, and the top of the mounting groove is A drive motor is fixedly installed on the inner wall, a rotating shaft is arranged below the drive motor, and a through slot is opened on the top of the rotating shaft, a connecting shaft is welded on the output shaft of the drive motor, and the bottom end of the connecting shaft extends into the through slot, and the A first through hole is opened on the inner walls of both sides, a second through hole is opened on the connecting shaft, and the same clamping column is installed in the second through hole and the two first through holes. The rotating shaft and the rotating wheel can be driven by the driving motor to turn the score, the connecting shaft and the rotating shaft can be fixed by the push plate and the clamping column, and the clamping column can be separated from the first through hole and the second through hole by pulling the pull ring, so that the driving The motor is easy to service.

However, the above-mentioned piano-turner still has the following defects:

The motor-driven method is highly dependent on the use environment. It must rely on an external power supply, or an external battery is required, and maintenance is still relatively troublesome. The high-frequency vibration generated when the motor rotates easily affects the sound quality of the performance.

SUMMARY OF THE INVENTION

The present invention is aimed at the above-mentioned problems existing in the prior art, and provides a page-turning device in a piano score-turning system. The technical problem to be solved by the present invention is: how to solve the dependence of the piano score-turning system on an external power supply, so that the Can be applied to various occasions.

The object of the present invention can be realized through the following technical solutions:

A page-turning device in a piano score-turning system, the piano comprises a main body and a support column, the support column is vertically fixed on the lower surface of the main body; it is characterized in that, the page-turning device comprises a rotating set on the upper surface of the main body. A turntable, the side wall of the turntable is fixed with a suction rod that can move to the top of the musical score, and the suction rod is provided with a magnet capable of sucking up the score of the musical score; the page turning device further comprises a rotating shaft, the rotating shaft is along the The vertical rotation is arranged on the main body, the upper end of the rotating shaft and the turntable are provided with a transmission mechanism capable of rotating the two synchronously, and the lower end of the rotating shaft is provided with several levers.

Its working principle is as follows: when the piano score turning system is in use, when the page needs to be turned, the player only needs to move the lever with his foot to drive the shaft to rotate, thereby driving the turntable on the main body to rotate, and then driving the suction rod to move to the position of the score. Above, the staves are sucked up by the magnet, and the turntable continues to rotate, which drives the suction rod to swing until the staves move to the left side of the base plate; the turntable continues to rotate, and the magnets on the suction rods gradually overcome the magnetic force and the staves under the action of pulling force. Phase separation, the spectrum page is located on the left side of the substrate, so as to achieve spectrum flipping. Compared with the prior art, this design drives the rotating shaft to rotate through the lever, and then drives the suction lever to move to turn pages, without relying on the motor, which solves the dependence on the external power supply and enables it to be used in various occasions. In addition, there is no motor, no high-frequency vibration will be generated when turning pages, and the sound quality will not be affected. As for the fixing method of the magnet, the magnet can be directly fixed on the end of the suction rod by using a cylindrical magnet, or a plurality of magnets can be used to be embedded on the suction rod, which is not limited here.

In the above-mentioned page turning device in a piano score turning system, the transmission mechanism includes a bevel gear 1 and a bevel gear 2 that mesh with each other, the bevel gear 1 is fixed on the upper end of the rotating shaft, and the bevel gear 2 fixed on the turntable. The rotation of the rotating shaft can drive the first bevel gear to rotate, which in turn drives the second bevel gear to rotate, and finally drives the turntable to rotate to realize the swing of the suction rod.

In the above-mentioned page-turning device in a piano score-turning system, a number of threaded holes are opened on the side wall of the lower end of the rotating shaft, and the inner end of the lever has a threaded hole that can be matched with the threaded hole 1. External thread. After the design of multiple threaded holes, the player can adjust the distance between the two adjacent levers according to his leg length and usage habits; the purpose of driving the shaft to rotate through the lever is that when the player steps on the lever, the The stroke of each step is fixed, so the rotation angle of the shaft is also fixed, so that the player can control the swing angle of the suction rod. To the initial position; for users with short legs, the number of levers can be increased, and the page can be turned by stepping on it a few more times.

In the above-mentioned page-turning device in a piano score-turning system, the side wall of the turntable is provided with a plurality of threaded holes 2 along its circumferential direction, and the page-turning device includes a screw that can be inserted into any threaded hole. Two inner pendulums. When turning pages, when the suction rod picks up the staves and moves them a certain distance, there is a certain space between the staves and the next staves on the right side of the base plate, and the pendulum rod can swing into this space; The suction rod continues to swing, and the pendulum rod swings synchronously. Even if the staves are separated from the suction rod during the page turning process, they can continue to move to the left side of the base plate under the action of the pendulum rod to complete the page turning.

In the above-mentioned page turning device in a piano score turning system, the angle between the suction rod and the swing rod is 90°-135°. When the angle between the suction rod and the swing rod is 90 degrees to 135 degrees, it can ensure that when the turntable rotates, the pendulum rod can follow the suction rod, which can block the detachment accident during the page turning process at any time, and improve the success rate of page turning.

Compared with the prior art, the present invention has the following advantages:

When turning pages, this design drives the shaft to rotate through the lever, and then drives the suction rod to move to turn pages without relying on a motor, which solves the dependence on an external power supply and enables it to be used in various occasions. In addition, there is no motor, no high-frequency vibration will be generated when turning pages, and the sound quality will not be affected.

Description of drawings

Figure 1 is a schematic diagram of the structure of the piano.

FIG. 2 is a partial enlarged view of FIG. 1 .

Figure 3 is a schematic diagram of the structure of this spectrum page.

FIG. 4 is a partial enlarged view of FIG. 3 .

In the figure, 1, the main body; 2, the support column; 3, the base plate; 4, the score sheet; 5, the vertical rod one; 6, the vertical rod two; ;10, metal sheet; 11, turntable; 12, suction rod; 13, shaft; 14, transmission mechanism; 15, lever; 16, through hole; 17, semi-ring fixing ring; 18, cover plate; 19, clip ;20, body; 21, elastic clip; 22, chute; 23, inclined plane; 24, rubber column; 25, strip groove; 26, bevel gear one; 27, bevel gear two; 28, threaded hole one; 29 , threaded hole two; 30, swing rod; 31, column; 32, pedal.

Detailed ways

The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

As shown in FIG. 1 , the piano includes a main body 1 and a supporting column 2. The supporting column 2 is vertically fixed on the lower surface of the main body 1. Two upright columns 31 are vertically fixed on the lower surface of the main body 1. The lower ends of the upright columns 31 are connected to each other through a base connected, a number of pedals 32 are arranged on the base. In this embodiment, there are preferably three.

After the rubber column is designed, it can be relatively slidable and relatively fixed with the strip groove, so as to avoid the cover plate from popping out when the leaf is turned.

As shown in Figure 1, Figure 3, Figure 4, the piano also includes a music rest, the music rest includes a base plate 3 and a score sheet 4, the base plate 3 is fixed on the upper surface of the main body 1, and the score sheet 4 includes a vertical direction along the base plate 3. Vertical rod one 5 and vertical rod two 6, the outer side of vertical rod one 5 is hinged to the middle of base plate 3, vertical rod one 5 and vertical rod two 6 are spaced apart and both inner sides are provided with vertical grooves 7, vertical The lower ends of the first rod 5 and the second vertical rod 6 are fixedly connected by a cross rod 8 , a transverse groove 9 is formed on the inner side of the cross rod 8 , and the surface of the cross rod 8 has a metal sheet 10 that can be attracted by a magnet. The specific material of the metal sheet 10 can be selected from iron, nickel, cobalt, etc., which is not limited herein.

Specifically, as shown in FIGS. 3 and 4 , the middle of the base plate 3 is provided with a number of slots in the vertical direction, the vertical rod 1 5 is provided with through holes 16 corresponding to the slots in the vertical direction, and the music rest It includes a semi-annular fixing ring 17 inserted into the through hole 16 and the slot. The staves can swing along the semi-circular back to the fixed circle to realize page turning.

As shown in FIGS. 3 and 4 , the sheet also includes a cover plate 18 , both ends of which can be snapped into the vertical grooves 7 , and the inner side of the cover plate 18 has a clip groove 19 that can hold paper. In this embodiment, the cover plate 18 includes a main body 20 arranged in the horizontal direction. The inner side of the main body 20 is provided with elastic clips 21 at intervals, and a clip groove 19 is formed between the two elastic clips 21; The paper is clamped to prevent the paper from jumping when turning pages. The upper ends of the vertical rod 1 5 and the vertical rod 2 6 are provided with a chute 22 that communicates with the vertical groove 7, and the cover plate 18 can slide in the chute 22; The inclined surfaces 23 of the elastic clips 21 are closed together. The elastic clip 21 may be a thin metal sheet, as long as it can elastically deform.

When installing, insert the lower end of the paper into the vertical groove first, slide it down for a certain distance, and then make the elastic clip of the cover hold the upper end of the paper, and the paper continues to slide down until the elastic clip of the cover Move to the inclined surface of the chute, and the two opposite elastic clips are closed relative to each other to clamp the upper end of the paper to avoid the paper from jumping when turning pages; and when you need to take out the paper, you only need to pinch the elastic in the middle of the cover. The clips are pulled outwards, and the paper can be taken out completely, which is convenient and quick to operate. The purpose of opening the chute is to adjust the distance of the cover plate in the chute for paper with some small size errors.

A rubber column 24 is fixed on the cover plate 18 , and a strip-shaped groove 25 is provided on the inclined surface 23 for engaging with the rubber column 24 .

As shown in FIGS. 1 and 2 , the piano also includes a page turning device. The page turning device includes a turntable 11 rotatably arranged on the upper surface of the main body 1 . The side wall of the turntable 11 is fixed with a suction rod 12 , and the side wall of the suction rod 12 is fixed There is a magnet, and the magnet can be moved to the top of the cross bar 8 under the driving of the suction rod 12 ; the page turning device also includes a rotating shaft 13 , which is arranged on the main body 1 to rotate in a vertical direction, and is between the upper end of the rotating shaft 13 and the turntable 11 . A transmission mechanism 14 capable of rotating the two synchronously is provided, and a plurality of levers 15 are provided at the lower end of the rotating shaft 13 .

In this embodiment, the transmission mechanism 14 includes meshing bevel gear 1 26 and bevel gear 2 27 . The side wall of the lower end of the rotating shaft 13 is provided with a plurality of threaded holes 1 28 , and the inner end of the lever 15 has an external thread that can be matched with the threaded holes 1 28 . The side wall of the turntable 11 is provided with a plurality of threaded holes 29 along its circumferential direction, and the page turning device includes a swing rod 30 that can be inserted into any threaded hole 2 29 . The angle between the suction rod 12 and the swing rod 30 is 90°-135°. In this embodiment, it is preferably 125 degrees.

The working principle of the present invention is as follows: when the piano score-turning system is in use, the paper of the musical score is first inserted along the vertical grooves of the first vertical bar and the second vertical bar, until the paper reaches the horizontal groove on the horizontal bar. , and both sides of the paper are located in the vertical grooves of the vertical rod 1 and the vertical rod 2. When the page needs to be turned, the player only needs to move the lever with the foot to drive the shaft to rotate, thereby driving the turntable on the main body to rotate, and then drive the suction rod to move to the top of the horizontal rod, and the horizontal rod is sucked up by the magnet. The staves are sucked up, and the turntable continues to rotate, which drives the suction rod to swing until the staves move to the left side of the base plate; the turntable continues to rotate, and the magnets on the suction rods gradually overcome the magnetic force and separate from the horizontal bars under the action of pulling force. It is located on the left side of the base plate, so that the spectrum can be flipped. Since the suction rod and the pendulum rod swing synchronously, even if the score page and the suction rod are separated during the page turning process, they can continue to move to the left side of the base plate under the action of the pendulum rod to complete the page turning.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention pertains can make various modifications or additions to the described specific embodiments or substitute in similar manners, but will not deviate from the spirit of the present invention or go beyond the definitions of the appended claims range.

Claims (5)

1. a page-turning device in a piano score-turning system, the piano comprises a main body (1) and a support column (2), and the support column (2) is vertically fixed on the lower surface of the main body (1); it is characterized in that , the page turning device comprises a turntable (11) rotatably arranged on the upper surface of the main body (1), the side wall of the turntable (11) is fixed with a suction rod (12) that can move to the top of the musical score, the suction rod ( 12) A magnet capable of attracting sheet music is fixed on the side wall; the page turning device further comprises a rotating shaft (13), the rotating shaft (13) is rotatably arranged on the main body (1) in a vertical direction, and the rotating shaft ( 13) A transmission mechanism (14) capable of synchronously rotating is provided between the upper end of the rotary shaft (11) and the rotary shaft (13), and a plurality of levers (15) are provided at the lower end of the rotary shaft (13); the rotary table (11) The side wall of the device is provided with several threaded holes two (29) along its own circumferential direction, and the page turning device includes a swing rod (30) that can be inserted into any two threaded holes (29). 2. The page turning device in the piano score turning system according to claim 1, wherein the transmission mechanism (14) comprises a bevel gear one (26) and a bevel gear two (27) that mesh with each other, the The first bevel gear (26) is fixed on the upper end of the rotating shaft (13), and the second bevel gear (27) is fixed on the turntable (11). 3. The page-turning device in the piano score-turning system according to claim 2, wherein the side wall of the lower end of the rotating shaft (13) is provided with a number of threaded holes one (28), the lever (13) The inner end of 15) has an external thread which can be matched with the threaded hole one (28). 4 . The page turning device in the piano score turning system according to claim 3 , wherein the angle between the suction rod ( 12 ) and the swing rod ( 30 ) is 90°-135°. 5 . 5. The page turning device in the piano score turning system according to claim 1 or 2 or 3 or 4, characterized in that, two uprights (31) are vertically fixed on the lower surface of the main body (1), and the The lower ends of the upright columns (31) are connected through a base, and a plurality of pedals (32) are arranged on the base.

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