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Electronic piano

An electronic organ and hammer technology, applied in the field of electronic organs, can solve the problems of increasing the number of electronic organs and the inability to maintain the appearance of ordinary electronic organs.

Inactive Publication Date: 2004-05-19
KAWAI MUSICAL INSTR MFG CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But because the hammer equivalents 221 have a considerable height, the height of the top of the outer frame of the electronic organ will increase, and the compact appearance of the ordinary electronic organ cannot be maintained.

Method used

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Examples

Experimental program
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Effect test

no. 2 example

[0109] In the second embodiment, as shown in Figure 15, a push button switch 60 replaces the Figure 4 Hammer sensors 63 and 65 are shown. The key 11 comprises a key body 11a extending from the front (right side) of the figure to the rear (left side) of the figure approximately to the middle part of the key board 3 and a key body 11a extending from the rear end (left end) of the key body 11a to the left side seen from the figure. The lowered or stepped piece 11b. The key frame 4 extends from the front of the key board 3 to about the middle of the key board 3 . The key 11 is rotatably supported at approximately its center by a balance pin 207 fitted into the middle plate 4 a of the key frame 4 . A key pad 208 is arranged at the rear end (left end) of the key board 3, and is in contact with the underside of the step member 11b when the key 11 maintains its original position, that is, before pressing the key and after releasing the key. The column 12 is screwed or fixed to the...

no. 3 example

[0116] In the third embodiment, such as Figure 17 As shown, the action simulation mechanism 300 placed behind the key 311 is equipped with a connecting rod 315 , a push rod 317 , a handle 318 and a brake beam 330 .

[0117] The connecting rod 315 is rotatably connected to a central beam 314 mounted on the electronic piano body through a connecting rod flange 313, so that when the upright 312 is raised, the connecting rod 315 is rotated along with the pressed key 311. direction in the opposite direction, or counterclockwise as in the illustration. A return stop 343 is supported by a wire 344 on the connecting rod 315 .

[0118] The ejector rod 317 is rotatably connected to the connecting rod 315 , so that the ejector rod 317 rises together with the connecting rod 315 until the ejector rod tail 317 a touches the limiting block 316 . The limiting block 316 is fixed to a limiting beam 341 by a screw 342 . The height of the limiting block 316 can be adjusted by turning the scre...

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PUM

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Abstract

Provided is an electronic piano maintaining a compact appearance and providing the key touch equivalent to that of an acoustic piano. A hammer equivalent member is composed of a butt, a L-shaped member and a catcher shank. When the butt is pushed up by a jack responsive to the key depression, the hammer equivalent member starts rotating in a direction reverse to the rotary direction of a depressed key. Subsequently, after the jack leaves the butt, the hammer equivalent member continues to be rotated inertially. By contacting the projection of the L-shaped member of the hammer equivalent member, a stopper stops the inertial movement of the hammer equivalent member. The hammer equivalent member is almost equivalent to the hammer assembly of the usual acoustic piano in inertial moment and the angle formed by the center of gravity relative to a virtual perpendicular passing a center pin. Furthermore, the hammer equivalent member is shorter than the hammer assembly in appearance.

Description

technical field [0001] The present invention relates to an electronic organ, which is equipped with a motion simulating mechanism for simulating the load applied to the keyboard, and relates to a keyboard for the electronic organ and a motion simulating device fixed on a handle constituting the electronic organ piano hammer. Background technique [0002] Electronic pianos, which typically emit electronic sounds from horns in response to the player pressing or releasing keys, have been improved and have recently reached somewhat satisfactory levels. But despite all these improvements, the key touch of the electronic organ still remains significantly different from that of the acoustic upright piano. [0003] Specifically, a motion-simulating mechanism has been developed in order to make an electronic keyboard have the same key touch as that of an upright acoustic piano. For example, the electronic organ shown in Japanese Laid-Open Patent Application No. 4-347895, such as F...

Claims

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Application Information

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IPC IPC(8): G10C3/16G10H1/34
CPCG10C3/16G10H1/346G10H1/00G10H1/32
Inventor 北岛理一石田宗雄中山真
Owner KAWAI MUSICAL INSTR MFG CO