CN108859491B

CN108859491B - Page turning device in piano score turning system

Info

Publication number: CN108859491B
Application number: CN201810726067.1A
Authority: CN
Inventors: 曹泓
Original assignee: Zhejiang Aikemi Information Technology Co ltd
Current assignee: Liaocheng Yulin Industrial Design Co ltd
Priority date: 2018-07-04
Filing date: 2018-07-04
Publication date: 2020-09-18
Anticipated expiration: 2038-07-04
Also published as: CN108859491A

Abstract

The invention belongs to the technical field of musical instruments, and relates to a page turning device in a piano music score turning system, which solves the problems that the piano music score turning system in the prior art has large dependence on an external power supply and the like. The piano comprises a main body and a support column, wherein the support column is vertically fixed on the lower surface of the main body; the page turning device comprises a rotary disc which is rotatably arranged on the upper surface of a main body, wherein an absorption rod which can move to the upper part of a music score is fixed on the side wall of the rotary disc, and a magnet which can absorb the music score page of the music score is arranged on the absorption rod; the page turning device also comprises a rotating shaft, the rotating shaft is rotatably arranged on the main body along the vertical direction, a transmission mechanism capable of enabling the rotating shaft and the rotating disc to synchronously rotate is arranged between the upper end of the rotating shaft and the rotating disc, and a plurality of deflector rods are arranged at the lower end of the rotating shaft. The invention has the advantage of turning the music score without an external power supply.

Description

Page turning device in 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

During the piano playing process, the music score is inevitably turned, if the piano is in a playing state, the playing is necessarily stopped by using the page turning gesture, so that the whole playing effect is influenced, if the piano is not stopped, the music score needs to be turned by another person nearby, however, the page turning person needs to have a certain music base, and the beat synchronization with the player can be achieved. Most of automatic music score turners in the current market are driven by motors, but most of the motors in the piano are inconvenient to disassemble, so that the motors cannot be normally maintained.

In order to solve the problems, Chinese patent CN 207381087U discloses an automatic piano music score turning device, including the piano main part, the music score groove has been seted up to one side of piano main part, the mounting groove has been seted up on the top inner wall in music score groove, fixed mounting has driving motor on the top inner wall of mounting groove, driving motor's below is equipped with the pivot, and the top of pivot has seted up logical groove, the welding has the connecting axle on driving motor's the output shaft, the bottom of connecting axle extends to logical inslot, all seted up first through-hole on the both sides inner wall that leads to the groove, the second through-hole has been seted up on the connecting axle, all install same card post in second through-hole and. Can drive pivot and runner through driving motor and turn over the musical instrument register for easy reference, can fix connecting axle and pivot through push pedal and card post, pulling pull ring just can make the card post break away from first through-hole and second through-hole for driving motor is convenient for maintain.

However, the piano score turning device still has the following defects:

the motor driving mode is adopted, the dependency on the use environment is high, the use environment needs to depend on the occasion with an external power supply, or a storage battery needs to be arranged outside, the maintenance is still troublesome, and the high-frequency vibration generated when the motor rotates easily influences the playing tone quality.

Disclosure of Invention

The invention provides a page turning device in a piano score turning system aiming at the problems in the prior art, and the technical problems to be solved by the invention are as follows: how to solve the dependence of this piano music score system on external power supply makes it can be applied to multiple occasion.

The purpose of the invention can be realized by the following technical scheme:

a page turning device in a piano score turning system comprises a main body and a support column, wherein the support column is vertically fixed on the lower surface of the main body; the music book page turning device is characterized by comprising a rotary disc which is rotatably arranged on the upper surface of a main body, wherein a suction rod which can move to the upper part of a music book is fixed on the side wall of the rotary disc, and a magnet capable of sucking the music book page of the music book is arranged on the suction rod; the page turning device further comprises a rotating shaft, the rotating shaft is rotatably arranged on the main body in the vertical direction, a transmission mechanism capable of enabling the rotating shaft and the rotating disc to rotate synchronously is arranged between the upper end of the rotating shaft and the rotating disc, and a plurality of shift levers are arranged at the lower end of the rotating shaft.

The working principle is as follows: when the piano music score turning system is used, when a player needs to turn a page, the player only needs to stir the deflector rod by feet to drive the rotating shaft to rotate, so that the rotating disc on the main body is driven to rotate, the suction rod is driven to move to the upper part of a music score, the music score is sucked up by the magnet, the rotating disc continues to rotate, and the suction rod is driven to swing until the music score moves to the left side of the substrate; the turntable continues to rotate, the magnet on the suction rod gradually overcomes the magnetic force and is separated from the music sheet under the action of the pulling force, and the music sheet is positioned on the left side of the substrate, so that the music sheet is turned. Compared with the prior art, the design drives the rotating shaft to rotate in a driving lever mode, further drives the suction rod to move to realize page turning, does not need to rely on a motor, solves the problem of dependence on an external power supply, and enables the device to be used in various occasions. In addition, without a motor, high-frequency vibration cannot be generated during page turning, and the tone quality cannot be influenced. As for the fixing mode of the magnet, the magnet can be directly fixed at the end of the suction rod by a cylindrical magnet, or a plurality of magnets can be embedded on the suction rod, which is not limited herein.

In the page turning device in the piano score turning system, the transmission mechanism comprises a first bevel gear and a second bevel gear which are meshed with each other, the first bevel gear is fixed at the upper end of the rotating shaft, and the second bevel gear is fixed on the rotating disc. The rotating shaft rotates to drive the bevel gear I to rotate, further drive the bevel gear II to rotate, finally drive the rotary table to rotate, and realize the swing of the suction rod.

In the page turning device in the piano score turning system, the side wall at the lower end of the rotating shaft is provided with a plurality of first threaded holes, and the inner end of the deflector rod is provided with external threads matched with the first threaded holes. After a plurality of threaded holes I are designed, a player can adjust the distance between two adjacent deflector rods according to the leg length and the using habit of the player; the purpose of driving the rotating shaft to rotate through the shifting lever is that a player steps on the shifting lever, the stroke of each stepping is fixed, and therefore the rotating angle of the rotating shaft is also fixed, so that the player can control the swinging angle of the suction rod, the optimal distance is that the player steps on the shifting lever to just complete page turning, and then steps on the suction rod to move to the initial position; and for users with shorter legs, the page turning can be finished by adding the number of the deflector rods and stepping for a plurality of times.

In the page turning device in the piano score turning system, the side wall of the turntable is provided with a plurality of second threaded holes along the circumferential direction, and the page turning device comprises a swing rod which can be inserted into any of the second threaded holes. When the page is turned, after the absorption rod absorbs the music sheet and moves for a certain distance, a certain space is formed between the music sheet and the next music sheet on the right side of the substrate, and the swing rod can swing into the space; the suction rod continuously swings, the swing rod synchronously swings, and even if the music sheet is separated from the suction rod in the page turning process, the music sheet can continuously move to the left side of the substrate under the action of the swing rod to complete page turning.

In the page turning device in the piano score turning system, the angle between the suction rod and the swing rod is 90-135 degrees. When the angle between the suction rod and the swing rod is 90-135 degrees, the swing rod can be ensured to follow the back of the suction rod when the rotary table rotates, the separation accident in the page turning process can be prevented at any time, and the page turning success rate is improved.

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

when pages are turned, the rotating shaft is driven to rotate by the driving lever, the suction rod is driven to move to turn the pages, the dependence on an external power supply is avoided without depending on a motor, and the multifunctional page turning device can be used in various occasions. In addition, without a motor, high-frequency vibration cannot be generated during page turning, and the tone quality cannot be influenced.

Drawings

Fig. 1 is a schematic structural view of the present piano.

Fig. 2 is a partially enlarged view of fig. 1.

Fig. 3 is a schematic diagram of the structure of the book page.

Fig. 4 is a partially enlarged view of fig. 3.

In the figure, 1, main body; 2. a support pillar; 3. a substrate; 4. a page of a music; 5. a first vertical rod; 6. a second vertical rod; 7. a vertical groove; 8. a cross bar; 9. a transverse groove; 10. a metal sheet; 11. a turntable; 12. a suction rod; 13. a rotating shaft; 14. a transmission mechanism; 15. a deflector rod; 16. a through hole; 17. a semi-annular retainer ring; 18. a cover plate; 19. a clamping groove; 20. a body; 21. an elastic clip; 22. a chute; 23. a bevel; 24. a rubber column; 25. a strip-shaped groove; 26. a first bevel gear; 27. a second bevel gear; 28. a first threaded hole; 29. a second threaded hole; 30. a swing rod; 31. a column; 32. a pedal.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, the piano comprises a main body 1 and a supporting column 2, wherein 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 through a base, and a plurality of pedals 32 are arranged on the base. Preferably 3 in this embodiment.

After the rubber column is designed, the rubber column and the strip-shaped groove can slide relatively and can be fixed relatively, and the cover plate is prevented from popping up when the leaf is turned over.

As shown in fig. 1, fig. 3, fig. 4 shows, this piano still includes the music stand, the music stand includes base plate 3 and music page or leaf 4, base plate 3 is fixed in the upper surface of main part 1, music page or leaf 4 includes montant one 5 and montant two 6 that set up along 3 vertical directions of base plate, the outside of montant one 5 articulates in the middle part of base plate 3, vertical recess 7 has all been seted up to montant one 5 and two 6 interval distribution of montant and inboard between them, the lower extreme of montant one 5 and two 6 links firmly mutually through horizontal pole 8, horizontal recess 9 has been seted up to the inboard of horizontal pole 8, the surface of horizontal pole 8 has can be by the adsorbed sheetmetal 10 of magnet. The specific material of the metal sheet 10 can be selected from iron, nickel, cobalt, etc., and is not limited herein.

Specifically, as shown in fig. 3 and 4, the middle portion of the base plate 3 is provided with a plurality of slots along the vertical direction, the first vertical rod 5 is provided with through holes 16 corresponding to the slots along the vertical direction, and the music stand includes a semi-annular fixing ring 17 inserted into the through holes 16 and the slots. The music sheet can swing along the semi-annular circling ring to realize page turning.

As shown in fig. 3 and 4, the sheet of music score further comprises a cover plate 18, two ends of the cover plate 18 can be clamped in the vertical grooves 7, and the inner side of the cover plate 18 is provided with a clamping groove 19 capable of clamping paper. In this embodiment, the cover plate 18 includes a body 20 disposed along the horizontal direction, elastic clamping pieces 21 are disposed at intervals inside the body 20, and a clamping groove 19 is formed between the two elastic clamping pieces 21; after the design has the clamping groove, can carry out the centre gripping to the paper, avoid the paper leap up when turning over the page. The upper ends of the first vertical rod 5 and the second vertical rod 6 are both provided with a sliding chute 22 communicated with the vertical groove 7, and the cover plate 18 can slide in the sliding chute 22; the upper end of the sliding slot 22 is also provided with a slope 23 which can press the two elastic clamping pieces 21 to close. The elastic clip 21 can be made of thin metal sheet, so long as it can be elastically deformed.

During installation, the lower end of the paper can be inserted into the vertical groove firstly, the paper slides downwards for a certain distance, then the upper end of the paper is clamped by the elastic clamping pieces of the cover plate, the paper continues to slide downwards until the elastic clamping pieces of the cover plate move to the inclined plane of the chute, the two opposite elastic clamping pieces are relatively folded, the upper end of the paper is clamped, and the paper is prevented from bouncing up when turning pages; when the paper needs to be taken out, the paper can be completely taken out only by pinching the elastic clamping piece in the middle of the cover plate and pulling the elastic clamping piece outwards, and the operation is convenient and fast. The purpose of the sliding groove is that the distance of the cover plate in the sliding groove can be adjusted for paper with small size errors.

A rubber column 24 is fixed on the cover plate 18, and a strip-shaped groove 25 clamped with the rubber column 24 is arranged on the inclined plane 23.

As shown in fig. 1 and 2, the piano further comprises a page turning device, wherein the page turning device comprises a rotary disc 11 rotatably arranged on the upper surface of the main body 1, an attraction rod 12 is fixed on the side wall of the rotary disc 11, and a magnet is fixed on the side wall of the attraction rod 12 and can move above the cross rod 8 under the driving of the attraction rod 12; the page turning device also comprises a rotating shaft 13, the rotating shaft 13 is rotatably arranged on the main body 1 along the vertical direction, a transmission mechanism 14 capable of enabling the rotating shaft 13 and the rotating disc 11 to synchronously rotate is arranged between the upper end of the rotating shaft 13 and the rotating disc, and a plurality of shift levers 15 are arranged at the lower end of the rotating shaft 13.

In this embodiment, the transmission mechanism 14 includes a first bevel gear 26 and a second bevel gear 27, which are engaged with each other, the first bevel gear 26 is fixed to the upper end of the rotating shaft 13, and the second bevel gear 27 is fixed to the rotating disk 11. A plurality of threaded holes I28 are formed in the side wall of the lower end of the rotating shaft 13, and external threads capable of being matched with the threaded holes I28 are formed in the inner end of the deflector rod 15. The side wall of the rotating disc 11 is provided with a plurality of threaded holes II 29 along the circumferential direction, and the page turning device comprises a swing rod 30 which can be inserted into any threaded hole II 29. The angle between the suction rod 12 and the swing rod 30 is 90-135 degrees. In this embodiment, 125 degrees is preferable.

The working principle of the invention is as follows: when the piano music score turning system is used, firstly, the paper of the music score is inserted into the vertical grooves of the first vertical rod and the second vertical rod respectively until the paper reaches the horizontal groove on the cross rod, and the two sides of the paper are positioned in the vertical grooves of the first vertical rod and the second vertical rod. When the page needs to be turned, a player only needs to stir the deflector rod by feet to drive the rotating shaft to rotate, so that the rotating disc on the main body is driven to rotate, the suction rod is driven to move to the upper part of the cross rod, the cross rod is sucked up by the magnet, the music sheet is sucked up, the rotating disc continues to rotate, and the suction rod is driven to swing until the music sheet moves to the left side of the substrate; the turntable continues to rotate, the magnet on the suction rod gradually overcomes the magnetic force and is separated from the cross rod under the action of the tensile force, and the music sheet is positioned on the left side of the substrate, so that the music sheet turning is realized. Because the suction rod and the swing rod swing synchronously, even if the music sheet is separated from the suction rod in the page turning process, the music sheet can continuously move to the left side of the substrate under the action of the swing rod to complete page turning.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A page turning device in a piano score turning system comprises a main body (1) and a support column (2), wherein the support column (2) is vertically fixed on the lower surface of the main body (1); the music score page turning device is characterized by comprising a rotary disc (11) which is rotatably arranged on the upper surface of a main body (1), wherein a suction rod (12) capable of moving to the upper part of a music score is fixed on the side wall of the rotary disc (11), and a magnet capable of adsorbing the music score page is fixed on the side wall of the suction rod (12); the page turning device also comprises a rotating shaft (13), the rotating shaft (13) is rotatably arranged on the main body (1) along the vertical direction, a transmission mechanism (14) capable of enabling the rotating shaft (13) and the rotating disc (11) to synchronously rotate is arranged between the upper end of the rotating shaft (13) and the rotating disc, and a plurality of shift levers (15) are arranged at the lower end of the rotating shaft (13); the side wall of the rotary table (11) is provided with a plurality of second threaded holes (29) along the circumferential direction, and the page turning device comprises a swing rod (30) which can be inserted into any one of the second threaded holes (29).

2. The page turning device in the piano score turning system of claim 1, wherein the transmission mechanism (14) comprises a first bevel gear (26) and a second bevel gear (27) which are engaged with each other, 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 rotating disc (11).

3. The page turning device in the piano score turning system of claim 2, wherein a plurality of first threaded holes (28) are formed in the side wall of the lower end of the rotating shaft (13), and the inner end of the lever (15) has an external thread capable of being matched with the first threaded holes (28).

4. A page turning device in a piano score turning system according to claim 3, wherein the angle between the suction lever (12) and the swing lever (30) is 90-135 degrees.

5. The page turning device in the piano score turning system of claim 1, 2, 3 or 4, wherein two vertical posts (31) are vertically fixed on the lower surface of the main body (1), the lower ends of the vertical posts (31) are connected through a base, and a plurality of pedals (32) are arranged on the base.