WO2009015521A1 - Clavier de piano électronique offrant une sensation de toucher à variation quadratique de la gravité - Google Patents

Clavier de piano électronique offrant une sensation de toucher à variation quadratique de la gravité Download PDF

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Publication number
WO2009015521A1
WO2009015521A1 PCT/CN2007/002546 CN2007002546W WO2009015521A1 WO 2009015521 A1 WO2009015521 A1 WO 2009015521A1 CN 2007002546 W CN2007002546 W CN 2007002546W WO 2009015521 A1 WO2009015521 A1 WO 2009015521A1
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WO
WIPO (PCT)
Prior art keywords
keyboard
gravity
key
magnet
electronic piano
Prior art date
Application number
PCT/CN2007/002546
Other languages
English (en)
Chinese (zh)
Inventor
Xianmin Li
Xueheng Li
Original Assignee
Xianmin Li
Xueheng Li
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xianmin Li, Xueheng Li filed Critical Xianmin Li
Publication of WO2009015521A1 publication Critical patent/WO2009015521A1/fr

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10C—PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARDS
    • G10C3/00—Details or accessories
    • G10C3/12—Keyboards; Keys

Definitions

  • the invention relates to an electronic piano playing keyboard with a second gravity changing hand, which can be widely used in a playing keyboard used for a keyboard, an electronic piano and a digital piano, which can play a keyboard like a traditional mechanical piano.
  • the keyboard feel is the most prominent, in the history of more than 20 years of development of electronic pianos and digital pianos, large companies in Japan and other countries.
  • YAMAHA, KAWAI> ROLAND and other companies' electronic pianos and digital piano keyboards are only used to produce keyboards using the general principle of leverage and counterweight to form a single gravity design principle.
  • the problem of keyboard playing is the same as that of a traditional mechanical piano.
  • the mechanical piano has the feeling of secondary gravity change formed by the structure of the action, and its magnitude is roughly as follows:
  • the middle key of the middle movement has a resistance of about 110 grams at the beginning. When the key moves down by 2/3-3/4, the resistance will decrease by 1/2 or more, less than 50 grams.
  • An object of the present invention is to design an electronic piano playing keyboard having a simple structure and having a secondary gravity change hand. It can be used in the keyboard of the keyboard, electronic piano, and digital piano.
  • the electronic piano playing keyboard with the second gravity changing hand of the present invention includes a keyboard bracket, a key, a key weight, a lever support bar, a limit pin, a conductive rubber, a conductive rubber pressing member, A magnet and a ferromagnetic member attracted thereto are disposed at a lower portion of the keyboard playing end and at a corresponding position on the keyboard tray.
  • the electronic piano playing keyboard having a second gravity change hand the magnet is a permanent magnet.
  • the electronic piano playing keyboard having a secondary gravity change hand may also be an electromagnet.
  • the electronic piano playing keyboard with the second gravity changing hand feels that the suction force of the magnet ensures the ratio of the critical gravity of the key drop to the critical gravity of the rebound is >2:1.
  • the invention has a simple structure, and skillfully utilizes the combined action of magnetic force and counterweight to make the electronic piano playing keyboard have the secondary gravity change feeling formed by the mechanical piano action structure, and can be used for electronic piano, electronic piano, digital
  • the keyboard for piano playing is an innovative technology worldwide. This technology will greatly promote the rapid development of electronic pianos and will be an epoch-making technological creation.
  • Figure 1 is a schematic view of an embodiment of a single lever key structure.
  • FIG. 2 is a schematic view of an embodiment of a double lever key structure.
  • FIG. 3 is a schematic view of an embodiment of an electromagnet structure.
  • the invention is designed according to the scientific principle that the magnetic attraction between the magnetic body and the displacement force is inversely proportional to the square of the distance, so that the key can obtain the feeling of secondary gravity change during the playing.
  • the electronic piano playing keyboard with the second gravity changing hand of the invention comprises a keyboard bracket, a piano key, a key weight, a lever support bar, a limit pin, a conductive rubber, a conductive rubber pressing piece, a printed circuit board, a limiting felt
  • the pad is provided with a magnet and a ferromagnetic member attracted to the lower portion of the key playing end and the corresponding position on the keyboard bracket.
  • the magnet is a permanent magnet or an electromagnet. The suction of the magnet ensures the ratio of the critical gravity of the key drop to the critical gravity of the rebound >2: l o
  • the present invention includes a keyboard holder 1, a key 2, a weight 5 at the end of the key, and a limited pin 7 on the lever support bar 12, and the conductive rubber 10 is arranged for printing.
  • a conductive rubber pressing member 11 is fixed to the key 2
  • a ferromagnetic member 4 is disposed at a lower portion of the playing end 2.1 of the key 2
  • a magnet 3 is disposed at a corresponding position on the keyboard holder 1.
  • 6 is the keyboard bracket 1 rear bar key limit cushion
  • 8 is The limit pin of the playing end of the key
  • 9 is the front key limit cushion of the keyboard bracket 1.
  • FIG. 2 is an embodiment of a double lever key structure: including a keyboard bracket 1, a key (first lever) 2, a weight iron member (second lever) under the key, a first lever fulcrum 7, and a conductive rubber 10 disposed at On the printed circuit board 13, the conductive rubber pressing member 11 is fixed to the weight iron member (second lever) 5, 16 is a support shaft of the weight iron member (second lever) 5, and has a magnet at the lower portion of the key playing end 2.1. 3.
  • a ferromagnetic member 4 is disposed at a corresponding position on the keyboard tray 1. 6 is a limit cushion of the weight iron member 5, 8 is a limit guide post of the keyboard playing end 2.1, and 9 is a front end key limit cushion of the keyboard bracket 1.
  • Fig. 3 illustrates an embodiment using an electromagnet in a single lever key structure embodiment: Each component is the same as Fig. 1, only 3 is an electromagnet, and 3.1 is a coil of electromagnet 3.
  • the present invention is designed using the principle that the attraction between the magnet and the ferromagnetic member is inversely proportional to the square of the distance.
  • the drop is in the range of 2/3 ⁇ 3/4.
  • the gravity of the key is mainly the weight 5 is working.
  • the ferromagnetic piece 4 and the magnet The magnetic attraction force between 3 increases rapidly, and the gravity of the key at this time is equal to the gravity of the weight 5 minus the magnetic attraction. It can fully achieve the effect of the secondary gravity change formed by the structure of the mechanical piano action.
  • the present invention is suitable for use with a playing keyboard of any structure, and is not limited to the above two.
  • the position of the magnet of the present invention is adjustable at the playing end of the key 2, and the magnetic force of the magnet can be adjusted according to different keyboards, and the positions of the magnet and the ferromagnetic member can also be switched up and down.
  • the size of the suction is based on the principle that the ratio of the critical gravity of the key drop to the critical gravity of the rebound is >2:1. Under the condition that this condition is satisfied, it can be arbitrarily changed.
  • the present invention can be used in a keyboard for electronic piano, electronic piano, and digital piano playing, and can be used in a 37-key to 96-key playing keyboard.
  • the core of the present invention is to provide a magnet and a ferromagnetic member attracted to the lower portion of the keyboard playing end and the corresponding position on the keyboard tray, and the magnetic attraction force is used to form a secondary gravity change hand. Therefore, any use of magnetic attraction to form a secondary gravity change feel, regardless of its structure, is within the scope of the present invention.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

L'invention concerne un clavier de piano électronique offrant une sensation de toucher à variation quadratique de la gravité. Le clavier selon l'invention comprend un châssis de clavier (1), des touches (2), des poids (5) sur les touches (2), une tige de support à levier (12), une broche de limitation (7), un caoutchouc électroconducteur (10), une matrice coulée (11) pour le caoutchouc électroconducteur (10), un aimant (3), ainsi qu'un élément ferromagnétique (4) attiré par l'aimant (3) et monté sur la partie inférieure de l'extrémité côté frappe de la touche (2) et à l'emplacement correspondant du châssis de clavier (1).
PCT/CN2007/002546 2007-08-01 2007-08-23 Clavier de piano électronique offrant une sensation de toucher à variation quadratique de la gravité WO2009015521A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNU2007200862776U CN201075285Y (zh) 2007-08-01 2007-08-01 具有二次重力变化手感的电子钢琴弹奏键盘
CN200720086277.6 2007-08-01

Publications (1)

Publication Number Publication Date
WO2009015521A1 true WO2009015521A1 (fr) 2009-02-05

Family

ID=39520543

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/002546 WO2009015521A1 (fr) 2007-08-01 2007-08-23 Clavier de piano électronique offrant une sensation de toucher à variation quadratique de la gravité

Country Status (2)

Country Link
CN (1) CN201075285Y (fr)
WO (1) WO2009015521A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107919112A (zh) * 2017-12-29 2018-04-17 泉州海丝蔓电子科技有限公司 电钢琴力度可调重锤键盘

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105913830B (zh) * 2016-06-18 2023-04-07 刘宝利 一种钢琴琴键及其中档支撑
CN106981284A (zh) * 2017-06-05 2017-07-25 音乐梦想（北京）科技有限公司 一种磁吸式配重琴键键盘
CN109035970A (zh) * 2018-07-27 2018-12-18 歆声(杭州)科技有限公司 新型教育系统
CN109615791B (zh) * 2019-01-16 2023-12-08 广东龙健乐器有限公司 一种钢琴键盘智能制动系统及其实现方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2031149U (zh) * 1988-05-31 1989-01-18 楼淑敏 一种带手感力度的琴键
DE19538267A1 (de) * 1995-10-13 1997-04-17 Schimmel Pianofortefab Tastaturanordnung für Tastenmusikinstrumente
JPH11249657A (ja) * 1998-03-06 1999-09-17 Casio Comput Co Ltd 鍵盤装置
CN2676344Y (zh) * 2003-08-04 2005-02-02 张勇 钢琴手感磁性调节系统
JP2006243584A (ja) * 2005-03-07 2006-09-14 Yamaha Corp 鍵盤装置及び電子楽器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2031149U (zh) * 1988-05-31 1989-01-18 楼淑敏 一种带手感力度的琴键
DE19538267A1 (de) * 1995-10-13 1997-04-17 Schimmel Pianofortefab Tastaturanordnung für Tastenmusikinstrumente
JPH11249657A (ja) * 1998-03-06 1999-09-17 Casio Comput Co Ltd 鍵盤装置
CN2676344Y (zh) * 2003-08-04 2005-02-02 张勇 钢琴手感磁性调节系统
JP2006243584A (ja) * 2005-03-07 2006-09-14 Yamaha Corp 鍵盤装置及び電子楽器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107919112A (zh) * 2017-12-29 2018-04-17 泉州海丝蔓电子科技有限公司 电钢琴力度可调重锤键盘

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CN201075285Y (zh) 2008-06-18

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