JP3137655U - Simple piano action - Google Patents

Abstract

The present invention simplifies piano action.
In the present invention, a hammer thrust bar 5 and a damper thrust bar 6 are both provided on a keyboard 1, and when the keyboard 1 is played, it operates simultaneously, and the hammer head 7 produces a sound. The damper head 9 is detached at the same time.
[Selection] Figure 1

Description

  The present invention is a simple piano action equipped with a damper.

  The piano action was completed after years of research and improvement.

  This plan is a simple structure of the action of a conventional piano, which has gained enough points.

  In the present invention, a hammer push-up bar and a damper push-up stick are installed near the tip of a keyboard having a fulcrum near the center. The sound is made to last.

  As described above, the action structure according to the present invention is simple, so there are few accidents, it is easy to adjust, and it is believed that good performance can be obtained by making sufficient adjustments.

  Hereinafter, an embodiment of the present invention will be described with reference to FIG.

  1 is the keyboard. 2 is a keyboard stand. Reference numeral 3 denotes a fitting material that is inserted into the keyboard 1 at the upper part and fixed into the keyboard base 2 at the lower part. A keyboard base plate 4 is a base plate on which the keyboard 1 is mounted. 4a and 4b are keyboard support rods attached to the keyboard stand 4, 4a is the front keyboard support rod, 4b is the front keyboard support rod, and the part that touches the keyboard 1 is affixed with a soft holding product such as felt. It has been. Reference numeral 5 denotes a hammer thrust bar, which is attached to the keyboard 1 as shown in the figure, and a felt is attached to the upper part. Reference numeral 6 denotes a damper protruding rod, which is attached as shown in the figure, and a felt is attached to the upper part. 7 is a hammer head that strikes the sound source. A hammer handle 8 is formed in the shape shown in the figure, and a hammer head 7 is fixed on one side, and the other is pushed up by a hammer thrust bar 5. 8a is the center of the hammer handle 8 and performs a circular motion around 8a. 9 serves to mute the sound with a damper head. Reference numeral 10 denotes a damper pattern, which is made as shown in the figure. A damper head 9 is attached to one side, and the other part is pushed up by a damper thrust bar 6. Reference numeral 10a denotes a damper pattern center, and the damper pattern performs a circular motion around 10a. 11 is a sound source mounting plate. Reference numerals 11a and 11b denote sound source mounting bar bases which are both attached to the sound source mounting plate 11, and felt or the like is affixed to the place where they come into contact with the sound source. 12 is a sound source. Reference numerals 13 and 13a denote two mounting screws of the sound source 12, and the portions that come into contact with the sound source 12 are both softly held by rubber, felt, or the like.

  The present invention relates to the production of a simple piano action. The solid line in FIG. 1 represents the time when the keyboard 1 is not being played, and the provisional line represents the time when the keyboard 1 is depressed and played. When not playing now, the hammer head 12 does not hit the sound source 12 and does not sound. The damper head 9 does not produce a sound by pressing the sound source 12. The next time you play, the hammer handle 8 pushes up the hammer handle 8 and the hammer head 7 hits the sound source 12 and produces a sound. At the same time, the damper handle 10 raises the damper handle 10 and the damper head 9 can be sounded away from the sound source. In addition, by making fine adjustments for raising and lowering the upper and lower bars with screws etc., efficient and precise action can be performed.

  It is a side view of the piano action of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Keyboard 2 Keyboard base 3 Fitting material 4 of keyboard 1 and keyboard base 2 Keyboard base board 4a Front keyboard support bar 4b Front keyboard support bar 5 Hammer thrust bar 6 Damper thrust bar 7 Hammer head 8 Hammer pattern 8a Hammer pattern center 9 damper head 10 damper pattern 10a damper pattern center 11 sound source mounting plate 11a sound source mounting bar base 11b sound source mounting bar base 12 sound source 13 sound source mounting screw 13a sound source mounting screw

Claims (1)

  By pressing down the keyboard with the hammer handle thrust bar and the damper handle thrust bar near the tip, the hammer pattern with the hammer head and the damper pattern with the damper head are moved simultaneously. A simple piano action that makes the sound last longer due to detachment.

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