Keyboard for musical instrument

• US 20030121398A1
• Filed: 11/26/2002
• Published: 07/03/2003
• Est. Priority Date: 08/28/2000
• Status: Abandoned Application

• Current Assignee: Tokyo Yusyo Company Limited
• Original Assignee: Tokyo Yusyo Company Limited
• Inventors: Mutou, Noritaka
• Application Number:
  US10/296,675
• Publication Number:
  US 20030121398A1
• Time in Patent Office: Days
• US Class Current: 84/423R
• CPC Class Codes: G10C 3/12 Keyboards; Keys
• CPC Class Codes: G10H 1/34 Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments
• CPC Class Codes: G10H 1/342 for guitar-like instruments with or without strings and with a neck on which switches or string-fret contacts are used to detect the notes being played electric guitars in which the tones are generated by the vibration of strings G10H3/18
• CPC Class Codes: G10H 2220/251 arranged as 2D or 3D arrays; Keyboards ergonomically organised for playing chords or for transposing, e.g. Janko keyboard
• CPC Class Codes: G10H 2230/145 Spint guitar keyboard, i.e. mimicking a combination of a guitar-like instrument, with or without strings, and a piano-like keyboard, e.g. with white and black keys arranged like on a piano

Abstract

An extremely easy-to-play keyboard for musical instrument capable of forming any keyboard rows such as a semitone arrangement to a diatessaron arrangement and a chord arrangement with one keyboard substrate, wherein the keyboard substrate is formed so that the keyboard is formed by disposing, parallel with each other, a large number of key substrates (1) extending in the longitudinal direction of the keyboard with a difference of semitone, installing a plurality of key top mounting parts (5) on each key substrate (1) in the longitudinal direction, and installing the key tops (4) on any key top mounting parts, or by combining various types of keyboard rows with each other, or disposing the keys positioned adjacent laterally to each other in all or a part of the keyboard rows with a difference of minor third and those positioned adjacent longitudinally to each other with a difference of whole tone in the direction from the front side to the right rear side.

Claims

1. A keyboard substrate comprising:

a multiplicity of key substrates extending in the front-to-rear direction of a keyboard, said multiplicity of key substrates being juxtaposed with a difference of semitone;

a plurality of key top mounting portions provided in the front-to-rear direction on each of said key substrates; and

a key top mounted on any key top mounting portion to thereby configure said keyboard.

2. The keyboard substrate according to claim 1, wherein said key substrate is supported on its front end.

3. A keyboard for musical instruments having a plurality of keyboard rows, said keyboard comprising;

a semitone arrangement keyboard section situated at the rear of said keyboard; and

a whole-tone arrangement keyboard section situated at the front of said keyboard;

said whole-tone arrangement keyboard section including a plurality of whole-tone arrangement keyboard rows in each of which laterally adjacent keys generate tones with a difference of whole tone, said plurality of whole-tone arrangement keyboard rows being staggered such that front-to-rear adjacent keys generate tones with a difference of semitone, wherein each key making up a rearmost whole-tone arrangement keyboard row generates the same tone as generated by a key in opposition thereto of said semitone arrangement keyboard section.

4. The keyboard for musical instruments according to claim 3, wherein said semitone arrangement keyboard section includes rectangular key tops, with key tops in opposition to key tops of said whole-tone arrangement keyboard section being each formed with a raised portion which has substantially the same width in the longitudinal direction, with key tops out of opposition to key tops of said whole-tone arrangement keyboard section being each formed with a raised portion whose extremity is enlarged.

6. The keyboard for musical instruments according to any one of claims 3 to 5, wherein said keys are disposed in an arc in plan.

5. A keyboard for musical instruments having a plurality of keyboard rows, wherein

laterally adjacent keys in all or part of said plurality of keyboard rows are disposed to have a difference of minor third, with front-to-rear adjacent keys in all or part of said plurality of keyboard rows being disposed to have a difference of whole tone from front toward diagonally right rear.