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Hammer limit element with position regulator and combined keyboard instrument with same

A technology of limiters and regulators, applied in stringed instruments, automatic musical instruments, instruments, etc., can solve the problem of imprecise touch of keys

Inactive Publication Date: 2008-03-26
YAMAHA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the right / left part 100A / 100B is not installed properly, the touch of the keys will not feel fine, or the hammer will be caught between the pillar and the right / left part 100A / 100B

Method used

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  • Hammer limit element with position regulator and combined keyboard instrument with same
  • Hammer limit element with position regulator and combined keyboard instrument with same
  • Hammer limit element with position regulator and combined keyboard instrument with same

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0038] In the following description, the word "front" means a side closer to a player who sits in front of the audio piano than a rear position. The word "longitudinal" means a solid line between the front position and the rear position. The word "transverse" means perpendicular to the longitudinal direction and parallel to the plane defined by the arrangement of the keys in their rest positions. The word "vertical" means perpendicular to both the transverse direction and the plane defined by the arrangement of the keys in their rest positions.

[0039] Referring to FIG. 3 , the mute piano of the present invention mainly includes an audio piano 1 and a mute system 200 . In this embodiment, the audio piano 1 is a grand piano, and the mute system 200 enables a player to selectively play a piece of music among audio tones and electronic tones. When the player selects the audio tone, the silent piano is built in the audio sound mode. When the player plays the audio piano 1, the...

no. 2 example

[0080] FIG. 10 shows a hammer stopper 300 according to a second embodiment of the present invention.

[0081] The hammer stopper 300 generally includes a shock absorbing element 310 , a rotating shaft 320 and a position regulator 312 . Position adjuster 312 includes rod 314 , set bolt 322 , adjustment bolt 326 , spring washer 330 and coil spring 332 . The damping element 310 is glued on a rod 314 with a rectangular cross-section. An internally threaded hole 316 is formed in the rod 314 . The rotating shaft 320 has a through hole 324 with an internal thread. The set bolt 322 is screwed into the through hole 324 , and the spring washer 330 is engaged with the set bolt 3 exposed from the rotation shaft 320 to fix the set bolt 322 . The front end of the set bolt 322 is threaded into an internally threaded hole 316 in the rod 314 . A coil spring 332 is inserted between the spring washer 330 and the rod 314 to apply pressure to the spring washer 330 and the rod 314 . Set bolt 3...

no. 3 example

[0086] FIG. 11 shows a hammer stopper 400 according to a third embodiment of the present invention. The hammer stopper 400 generally includes a shock absorbing element 410 , a rotating shaft 420 and a position regulator 412 . The position regulator 412 consists of a rod 414 , a set bolt 430 screwed into the rod 414 , and a pair of adjusting bolts 432 / 434 clamped in contact with the upper surface of the rod 414 . The damping element 410 is glued on a rod 414 with a rectangular cross-section. Fig. 12 shows the cross-section of the hammer stopper 400 along the section line AA' in Fig. 11, and Fig. 13 shows the transverse section of the hammer stopper 400 along the section line BB' in Fig. 11. section. As shown in FIGS. 12 and 13 , the rod 414 has an internally threaded hole 416 formed therein. The rotation shaft 420 includes end portions 420A each having a circular cross section, and a main body portion 420B having a rectangular cross section. The circular cross-section of ...

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PUM

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Abstract

A hammer limit element with hammers and strings knocked by related hammers, used in a piano, comprises an axes rotated between a free positon where the hammers are allowed to knock related strings and a stopping position where the strings are prevented from being knocked by the related hammers, an impact absorption device povided on the axes for receiving handles of the hammers when the axes is at the stopping position; a position adjustor arranged in an adjustable impact absorption device and used for adjusting the impact absorption device, thereby the hammer limit element and an audio piano can be easily assembled without detaching a keyboard or an operation system by a worker.

Description

technical field [0001] The present invention relates to a keyboard musical instrument, in particular to a synthetic keyboard musical instrument, such as a mute piano which can selectively generate audio tones and electronic tones and a mute system applied in the mute piano. Background technique [0002] Acoustic pianos produce tones through the vibration of the strings. The player presses the keys to activate the operating mechanism in the audio piano. The operating mechanism drives the hammer assembly to rotate, and the hammers strike the strings to generate vibrations. [0003] There is another type of piano that can optionally produce both audible and electronic sounds. This type of synthetic keyboard instrument is called a mute piano. This silent piano is equipped with hammer stoppers. When the player wishes to play the music with the audio tone, he can instruct the silent piano to place the hammer stopper on the free position. Subsequently, the hammer stoppers are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10C3/16G10C3/00G10C5/00G10C9/00
CPCG10C5/005G10C5/10G10F1/02
Inventor 伊藤胜男河村洁
Owner YAMAHA CORP
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