SU1770978A1 - Stringed musical instrument - Google Patents

Description

The invention relates to musical multi-stringed instruments, in particular, Kukrainian bandura, and is intended for the performance of solo works, musical accompaniment and ensemble use.

The objectives of the invention are to improve the technical capabilities and convenience when playing.

The design of the tool is illustrated by drawings, where: Fig, 1 shows a general view (perspective view); figure 2 is a vertical section of the key mechanism between the individual keys: figure 3 - pinching plectrum, front view, figure 4 - the same, side view, figure 5 - the same, top view: figure 6 - also. in perspective. ’

The instrument consists of a hollow body 1, a resonating soundboard 2, string clothes 3. camels for tensioning and adjusting the strings 4 and a keyboard mechanism 5.

The key mechanism 5 is installed removably with screws 6 on the body 1 above the string garment 3.

It consists of 7 tone keys and 8 semitone keys 8. Each of the 7 and 8 keys is fixed ·? strip on the common bearing element 9. With the help of the lower capsule 10 on its horizontal axis 11.

The supporting element 9 is connected to the sidewalls 12 and the sub-keyboard board 13, which form the basis of the entire keyboard mechanism 5.

On the sub-keyboard board 13, a spring 15 is installed under each key 7 and 8, and there are separators 14 between the keys.

The main part of the key mechanism 5 is a set of plucked elements 16.

Each pinched element 17 is made in the form of an L-shaped lever 18, in its middle part, mounted on the horizontal axis 19 of the upper capsule 20, equipped with a leaf spring 21 and i fixed on the upper part of the bearing: element 9.,

An adjusting screw 22 is installed at the lower end of the lever 18, and parallel to it, a key adjustment screw 23 passes through the bearing element 9, and at the upper end of the lever 18 perpendicular to the string 3, a plucking plectrum 24 is installed, equipped with a spring 25 and a pint force adjustment screw 26.

The upper and lower capsules 20 and 10 are mounted on the supporting element 9 using vertical screws 27 and 28.

Playing the instrument is as follows.

1770978A1

The performer presses the key 7 (8) of the key mechanism 5 and it moves towards the sub-keyboard board 13, while the spring 15 is compressed, and the key goes down between the key dividers 14, which serve as sliding guides,

As a result of the stroke of the key, it rests with its rear part against the adjusting screw 22 and drives the L-shaped lever 18 of the pinching mechanism 16, which reciprocates on the horizontal axis 19 of the upper capsule 20, fixed on the upper part of the carrier 9, in the direction, perpendicular to the string and overcomes the resistance of the leaf spring 21 mounted on the upper capsule 20.

When etrm, the plectrum 24, located at the upper end of the lever 18, plucks the string and it sounds until the key is pressed or the string naturally decays.

When the lever 18 returns to its original position, thanks to the spring 21 and the key 7, the plectrum 24, making a roundabout movement along its axis, bypasses the string without extracting sound, And under the action of the spring 25 it returns to its original position,

When you press the next key, the musical cycle is repeated on the next string, etc.

Adjustment of the key mechanism 5 is as follows.

The main functions are performed by special adjusting screws. The screw 23 has a head with an increased diameter, into which, under the action of the spring 15, the button 7 (8) abuts. Using the slot on the threaded part of this screw, the key is adjusted horizontally, the amount of key travel is determined, which makes it possible to align the entire keyboard.

Screw 22 makes it possible to adjust the distance from the plucking plectrum to the string and to provide the necessary free play.

The screw 26 makes it possible to adjust the height of the plectrum above the string, to determine the force of the pint and to make the intonation of the instrument.

The design of the key mechanism includes the upper and lower capsules 20 and 10, which also have adjustment functions.

So when installing thin strips of paper under one side of the capsule 20, you can significantly change the position of the plectrum relative to the string.

And as a result of such an installation on the capsule 10, the keys are individually adjusted horizontally.

The use of the proposed technical solution makes it possible to facilitate the technique of performing on the bandura, which is complicated due to the multi-string instrument and the use of the fingers of both hands for the plucking function, and significantly expand the possibilities of performing on the bandura more technically complex musical works.

Claims (2)

Claim 1. Musical stringed plucked instrument containing a resonating soundboard connected to the body, string clothes with pins and a keyboard mechanism, in the casing of which spring-loaded keys and tones are installed on the carrier element and spacers. semitones associated with spring-loaded levers, the free ends of which carry elements for acting on the strings in a direction perpendicular to them, distinguishing it by the fact that, in order to increase the convenience when playing, it has adjusting screws for the lever and keys, the casing is installed on the resonating deck, and the spring-loaded keys of tones and semitones are located in a horizontal plane, and the spring-loaded levers are L-shaped, and the element for influencing the strings is made spring-loaded and carries a screw for adjusting the impact force, while the lever adjusting screw is located on its lower part, and the adjusting screw of the key is located parallel to the adjusting screw of the lever and is located on the supporting element. 2. The tool according to claim 1, which is characterized by the fact that the spring-loaded keys and levers are connected to the carrier element by means of the inserted lower and upper capsules. • i 7'0978 Fig 2. VNIIPI of the State Committee for Inventions and Discoveries at the State Committee for Science and Technology of the USSR 113035, Moscow, Zh-35, Raushskaya nab., 4/5 Production and Publishing Plant Patent, Uzhgorod, Gagarin str., 101