RU17746U1 - WRITTEN STRING FOR MUSICAL INSTRUMENTS - Google Patents

Description

The utility model relates to the construction of entwined strings for musical instruments: plucked, bowed.

Known entwined string for musical instruments, consisting of high-strength metal monofilament (core) with a loop at one end, entwined with copper, brass and other soft wire (A, M. Gorlov, A.N. Leonov Production and repair of bowed musical instruments, Moscow Easy industry 1975 p. 154, fig. 866)

The closest to the claimed one is a twisted string for musical instruments. (A, M. Gorlov, A.P. Leonov Production and repair of bowed musical instruments, Moscow Light Industry 1975, p. 154, Fig. 86-6, as well as P .AKomarov, SP Fedyushkin Manufacture and repair of plucked musical instruments, Moscow, Legprombygizdat, 1998, p. 109, Fedosov MV et al. RF patent. No. 2070340 C1 An entwined string for musical instruments and a method for its manufacture. Patents of the Russian Federation for the invention RU BI No. 34 12/10/96)

That is why it is considered as a prototype.

The design drawback of this string is due to the fact that the winding, in order to maintain the tightness of the fit of its turns to each other and to the core, is permanently fixed at both ends of the string during its manufacture, first, for example, for a loop, then, at the end of the wrap, for monofilament core by soldering, special

oil o about t 7

Entwined string

for musical instruments MPK 6 G10C 3/08, G 108 3/10

winding with thread and in other ways, which requires an extraordinary amount of time to complete this operation. However, at the moment of fixing the second end of the winding, the constant tension of the winding wire is not technologically guaranteed, due to the need to separate its second end by biting, which leads to a weakening of its tension and unwinding of the winding in the opposite direction, violation of the density and fit of the coils to each other and core, makes the string as a whole unsuitable for tuning and operation (A, M. Gorlov, A.N. Leonov Production and repair of bowed musical instruments, Moscow Light Industry p. 153,154,155, attacks .A.Komarov, S.N. Fedyushkin Manufacture and repair of plucked musical instruments, Moscow, Legprombygizdat, 1988, p. 105.109), (Fedosov M.V. et al. Natent RF No. 2070340 Twisted string for musical instruments and its method RF patent for inventions RU BI No. 34 10.12.96

The objective of the proposed utility model is the creation of a twisted string design, ensuring the exclusion of a density violation of its winding during manufacturing and operation, by creating conditions for fixing each coil of the winding by bending its diameter with a monofilament surface with a polyhedron profile at the moment of wrapping, which ensures a fixed position of the coils, maintains a tight fit them to each other and core, regardless of the fastening of the ends of the winding.

The specified technical result is achieved by the fact that the inventive twisted string for musical instruments contains a core made of metal monofilament with a polyhedron profile, the faces of which are bent on the diameters of the windings during winding, thereby fixing their position on the core, exclude

unwinding of the winding and do not require fastening its second end to the core.

In the course of the search by sources of scientific and technical information, a device with a combination of design features that ensure the achievement of the specified technical result was not found. Thus, the inventive twisted string is new, has industrial applicability and has an inventive step.

The essence of the utility model is illustrated in the drawing:

In FIG. 1 depicts a twisted string with fastening of the wrap at one end for a loop of string. Figure 2 shows the fit of the cover to the core monofilament profile in an enlarged view.

The proposed string 1 for musical instruments from a profile metal monofilament 2 with a loop 3, for which the end 4 of the beginning of the upholstery is fixed, consisting of coils 5 adjoining tightly to each other, wound on a profile metal monofilament 2, which provides bends of the coils 5, entwines at their places of contact to the conjugation of the faces of the profile with a radius of 6.

The string wrapping can be made of round and flat wire. The proposed string for musical instruments can be made in a well-known, traditional way on a stringing machine that does not require special equipment and technology.

The core of a string 1 of a profile metal monofilament 2 is fixed by a loop 3 in one spindle of a string-boring machine, the second end of the core is fixed in another spindle of this machine. The initial end 4 of the wire for wrapping is fixed to loop 3, then simultaneously spinning spindles

the machine provide core wrapping along its entire specified length. After stopping the rotation of the spindles, the wire for twisting is bitten, and the finished string is detached from both spindles of the string-unwinding machine.

Performing an entwined string for musical instruments by winding the entwine on a core with a polyhedron profile ensures that the tightness of the windings of the windings is maintained without attaching its second end to the core.

Thus, as can be seen from the above, it is the claimed combination of structural features that ensures the achievement of a technical result that cannot be obtained in the prototype and other known devices.

The use of the claimed design eliminates the violation of the density of the fit of the turns of the coil to the core and to each other at the time of manufacture of the string and its operation, to reduce manufacturing time by eliminating the operation of attaching the second end of the winding to the core.

Claims (1)

An entangled string for musical instruments containing a core, a winding, characterized in that the core is made of metal monofilament with a polyhedron profile, when the windings are wrapped with winding diameters of the turns of the winding, ensuring their fixation on the core surface, thereby excluding unwinding of the winding and securing its second end to core.