METHOD OF MANT F ACTURING OF THE STRINGED MUSICAL
INSTRUMENT
The invention relates to manufacturing of musical instruments, in particular to manufacturing of stringed musical instruments.
Despite of constant searches of manufactureres for an opportunity of improvement of quality of the musical instruments manufactured by them connected with the selection of materials for manufacturing separate details, methods of their placement and fixing, the construction of stringed instruments remains practically inalterable: it consists of a body including connected decks, a neck and strings.
It is known a technological circuit of manufacturing of the stringed musical instruments including manufacturing of separate units and details, assembling of them, mounting the neck to the instrument body, stretching strings, adjustment and tuning. Distinctions in the technological circuit, as a rule, relate only to manufacturing separate details and components (L.L.Bandas, LAKuznetsov Manufacture and repair of plucked musical instruments, Moscow, Light and Food Industry, 1983, pages 136-210).
It is known the method of manufacturing of the stringed instruments according to which the body of the instrument is formed by connection of two parallel surfaces of decks with the help of lateral walls. Props, top and bottom lobes are used for fixing lateral walls (E.Sharnasse the Six-string guitar, Moscow, Music,
1991 , pages 70-71).
The failing of this method is the bulkiness and the significant sizes of the instrument, the complexity of manufacturing caused by the presence of a plenty of components, which are subjected to various kinds of undesirable loadings.
The aim of the invention is the development of the method of manufacturing of the compact instrument of more perfect aesthetic form with a new timbre of sounding.
The novelty of the offered method consists in creation of a new method of the formation of a body of the musical stringed instrument.
The technical result consisting in preservation of acoustic qualities of the instrument and simplicity of the construction, is provided by formation of the body of the musical instrument by connection of two cylindrical surfaces of decks, which formings are perpendicular to each other.
The external outline of the body of the offered instrument is similar to a shell. The bent (cylindrical) surface of the deck makes the body resilent, increases its rigidity that results in increase of durability of the instrument. The convenience of playing the instrument is provided by small lateral elements made in the form of petals. The substitution of lateral walls for corresponding lateral elements in the form of petals lightens the instrument, reduces the expenditure of materials and simplifies the technology of manufacturing of stringed instruments. The perfect aesthetic form of the musical instrument increases an opportunity of occurrence of new acoustic properties (timbres of sounding) of the instrument.
The method of manufacturing of a stringed musical instrument is illustrated by drawings.
On fig. 1 the guitar manufactured by the offered method is represented, where 1. The top deck
2. The stand
3. Strings
4. The neck
5. Lateral elements in the form of petals 6. The bottom deck on figs. 2 the violin manufactured by the offered method is represented; on figs. 3 the contrabass manufactured by the offered method is represented.
The method is carried out as follows.
At the beginning preform for the deck is made. For the purpose two symmetric halves of the top deck are glued and then the rated form of the deck is given to them with the help of a curve. The wetted top deck is bent in a longitudinal direction on the heated metal mould of the rated bend. Then the sound hole is cut. One or more cross springs are glued to the bent top deck to fixate the rated bend. Any system of springs chosen by the manufacturer can be used for fixating the rated bend of the top deck. Then the bottom deck is prepared. Two symmetric halves are soaked and bent on the heated metal mould of the same rated bend as the top deck not in a longitudinal but in a cross direction. Then two halves of the bottom deck are glued together and the rated form of the deck is given to them with the help of a curve. Two ore more cross springs are glued to the bottom deck to make it more rigid.
After that the neck is mounted to the bent top deck, thus the sole of the neck follows to the bend of the bottom deck. Then the bottom deck is glued to the top deck. Bends of the ready top and bottom decks are perpendicular to each other and are similar then joined. The places of the joint of the top and bottom decks are previously glued with additional lateral walls to make the body more rigid and to keep its form. In the places of kerfs the lateral elements in the form of petals are glued to provide the convenience of playing the instrument. The subsequent operations are carried out under the known technological circuit.