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Keyobard musical instrument with height-controllable pedal

A keyboard instrument and pedal technology, applied to musical instruments, stringed instruments, instruments, etc., can solve the problems of patience and complexity in screwing screw parts

Inactive Publication Date: 2009-04-08
YAMAHA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if this known auxiliary pedal system is firmly connected to the pedal 5A / 5B / 5C, its complicated assembly and disassembly work will consume his or her patience for screwing
[0011] Another problem is that this prior art auxiliary pedal system detracts from the appearance of an acoustic piano, and users may prefer an electronic keyboard with a funky look

Method used

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  • Keyobard musical instrument with height-controllable pedal
  • Keyobard musical instrument with height-controllable pedal
  • Keyobard musical instrument with height-controllable pedal

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0032] see figure 2 , a pedal system hangs from a key base 11. The keybed 11 forms part of the rim which in turn forms the grand piano together with the legs, keyboard, mechanical structure, hammers, dampers and strings. The rim, keyboard, mechanism, hammers, dampers, and strings are similar to those of a standard grand piano. For simplicity, they are not further introduced below.

[0033] The pedal system 10 includes a pedal base 12 , a pedal post 13 , a pedal box 14 , pedals 15A / 15B / 15C, a pedal rod 16 , a pedal post 16A and a coupling 17 . Coupler 17 is newly added in pedal system 10, and it is placed between pedal box 14 and pedal column 13, is used for adjusting the distance that pedal box 14 leaves pedal seat 12 and is suitable for adult or child players. The pedal box 14 is slidable along the pedal post 13 . The player moves the pedal box 14 to a suitable position, and then it is fastened to the pedal post 13 . Pedal base 12, pedal post 13, pedal box 14, pedals 1...

no. 2 example

[0046] Referring to Figure 6, a pedal system 39 is used in this grand piano embodiment of the present invention. With the exception of the pedal system 39, this second embodiment of the grand piano is structurally similar to a conventional grand piano. Therefore, only the pedal system will be discussed intensively.

[0047] The pedal system 39 includes a pedal base 12 , a pedal post 13 , a pedal box 14 , three pedals 15A / 15B / 15C, a pedal rod 16 and a coupler 17 . The pedal base 12 , the pedal post 13 , the three pedals 15A / 15B / 15C and the pedal rod 16 are the same as in the pedal system 10 . For simplicity, the introduction of these components is omitted.

[0048] The pedal box 24 generally has the shape of a rectangular parallelepiped whose upper, lower, side and front / rear panels define an interior space similar to the pedal box 14 . Three pairs of through holes 22 are formed in the front and rear plates, and the pedals 15A / 15B / 15C protrude outward from the box 24 thr...

no. 3 example

[0054] FIG. 7 shows another pedal system 48 for use in a grand piano 3 according to the present invention. A keyboard 3a, a mechanical structure 3b, hammers 3c, dampers 3f and strings 3d are housed in the piano case 3e. When the cover plate constituting a part of the case 3e is lifted, the keyboard 3a is exposed to the player. The mechanical structure 3b, the hammer 3c and the strings 3d are well known to those skilled in the art, so no further description will be given below.

[0055] The pedal system 48 has a pedal base 12 , a pedal box 49 , three pedals 15 , a link mechanism 50 and a flexible wire 51 . The pedal base 12 and the three pedals 15 are similar to those of the grand piano of the first embodiment, so the description will focus on the other components.

[0056] The pedal box 49 has a shape of a rectangular parallelepiped, and upper / lower panels, front / rear panels and side panels defining an inner space. Three pedals 15 are rotatably supported in the defined inte...

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Abstract

A grand piano includes a pedal mechanism constituted by a lyre block attached to the lower surface of a piano case, pedal posts hung from the lyre block, a lyre box engaged with the pedal posts, pedals rotatably supported by the lyre box and pedal rods connected between the pedals and damper mechanism / keyboard accommodated in the piano case, wherein the lyre box is movable along the pedal posts, and a coupler is provided between the lyre box and the pedal posts so as to maintain the pedals at a position suitable for a pianist, whereby the pianist can adjust the pedals to the suitable position before fingering on the keyboard.

Description

technical field [0001] The invention relates to a keyboard musical instrument, in particular to a keyboard musical instrument such as an acoustic piano and a combined keyboard instrument made on the basis of the acoustic piano. Background technique [0002] Figure 1 shows a typical example of an acoustic piano. This acoustic piano is called a grand piano. The prior art grand piano includes a piano case 1 , legs 2 and a pedal system 3 . Although a keyboard, mechanism, hammers, dampers and strings are mounted within the hood, these components are not visible in this figure. Legs 2 protrude downward from the piano body 1 and support the piano body, and thus the constituent members, on the floor. [0003] The pedal system 3 works in conjunction with the dampers and the keyboard. When the player actuates the pedal system 3, the pedal system 3 separates one or several dampers from the strings and causes the keyboard, and thus also the hammer pins, to slightly deviate from the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10C3/14G10C3/26
CPCG10C3/26G10C1/04G10C3/14
Inventor 前原一夫
Owner YAMAHA CORP
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