FR2790585A1 - Wind instrument, formed from plastic or a composite plastic material formed with wood or glass fibres, includes an integral mouthpiece - Google Patents

Abstract

The instrument is formed from a tube (1) that is formed from a plastic or composite plastic material. An integral mouthpiece is formed at one end of the tube . In interior surface (2) of the tube has an irregular surface structure such that the characteristics of a traditional instrument is preserved.

Description

The present invention relates to a wind musical instrument being

  made of a plastic or composite body or plastic mixed with wood particles

  or fiberglass or derivatives, and a mouthpiece. With exterior decoration.

  It is played from the drone: (basic note), harmonics, shouts or vocalizations, moreover, at the origin of this instrument one could only qualify this sound by harmonics. Commonly called "DIDGERIDOO". This instrument is traditionally made of Eucalyptus wood which in our climates poses a problem of cracks, which is accentuated by the hot and humid air which one exhales during its play: 37 Celsius more high hygrometry, creates cracks when l the instrument returns to room temperature. Some of these DIDGERIDOO are made of Bamboo, wood with the same risk of cracks, a drawback related to this. Others in P.V.C. have the disadvantage of being too round and smooth in their internal surface just like the Bamboo. What makes the fundamental well defined, but with a high harmonic meanwhile less well defined. In addition, originally the musical instrument is made by the "Aborigines of Australia" who used nature, because the branch of Eucalyptus chosen, had to be eaten by termites in its tender heart. But not too much, in order to have a correct resistance to the pressure of the exhaled air. Emptied of termite residues, the internal surface is therefore bumpy and irregular, which produces richer high harmonics and a more submissive fundamental. The whole raises two problems:

- The cracks.

  - Internal surfaces too round and smooth.

  This instrument, according to the invention, makes it possible to remedy these drawbacks, by a method

  allowing to recreate the original surface.

  According to a first characteristic, it comprises a tube made of plastic or P.V.C. or of plastic mixed with particles of wood or composite or fibers

  glass or its derivatives, forming the body of the instrument.

  These materials, thanks to their characteristics do not fear changing climates and high or variable humidity. So no cracks due to these parameters. In him

  giving a bumpy and irregular internal surface.

With a mouthpiece.

  According to particular embodiments: The tube constitutes the body of the instrument, its

  internal surface may be bumpy and irregular. The plastic or P.V.C.

  can be hot formed by deformation and, the body can be obtained by molding or injection molding. Process for creating a surface identical to the original

(DIDGERIDOO in Eucalyptus wood).

  By way of nonlimiting example, the body of the instrument can have a length ranging from 1

meter to 2 meters.

  It can have an inside diameter from the top up to half of 3 cm. at 5 cm. and 3 cm. at

cm. from the middle to the bottom.

  The pressure resistance of the exhaled air can thus be defined.

  It can have a flared outlet to amplify the sound.

  The body may have one or more gentle curves.

  It can have a variable thickness depending on the material used to make it.

  All the variations of the parameters mentioned above will give the instrument its base note and interesting sound particularities; As is the case for traditional instruments and the choice of the user depending on the desired sound and experience.

  The mouthpiece of the instrument can be natural Beeswax.

  The mouthpiece can be made according to a variant in synthetic resin or a malleable material. The mouthpiece may be of the same material as the body of the instrument.

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  music. The mouthpiece can be interchangeable. It can be, whatever its material, an internal diameter ranging from 3 cm. at 5 cm. Factor which, when changed, allows

  according to the choice of accentuated or to increase the resistance to the pressure of the exhaled air.

  The accompanying drawing illustrates the invention:

  Figure 1 shows in section the wind musical instrument.

  Figure 2 shows in section a variant of this instrument.

  With reference to these drawings, the instrument comprises a body (1), the internal surface (2)

  is bumpy and irregular and a mouth (3).

  The body (1) according to a process is hot formed by deformation when the latter is made of plastic or, as in this example, of P.V.C. with a steel cylinder

  which serves as a training tool. This steel cylinder can be of variable diameter.

  By exerting several pressures with the tool on the P.V.C. tube so as to reproduce

  from the outside a bumpy and irregular surface (2).

  The body (1) or tube may include small air corridors which are obtained, when the latter is in a tube, by small twists made when hot. The whole also giving it its external appearance. The whole of this process makes it possible, by means of variants, to obtain the fundamental frequency of the instrument. Taking into account the length, the diameter, the thickness, the mouth and

the material used.

For exemple:

A tube of P.V.C.

- With a length of: 142 cm.

  - With a diameter of: 5 cm. Then deformed according to the process.

  - From a mouthpiece of: 3 cm. inside diameter.

- With a thickness of: 3 mm.

Gives a base note: DO

Ex. N 2: P.V.C.

- Length of: 116 cm.

  - Diameter of: 4.5 cm. deformed according to the process.

- Thickness of: 1.8mm.

  - From a mouthpiece of: 3cm. of diameter.

  Give a basic note: FA Knowing that this instrument plays harmonics produced by a playing technique from the basic frequency, called fundamental frequency, determined by the

  technical characteristics of the instrument and not limiting. And adding vocalizations.

  A mouthpiece (3) made of natural Beeswax. By immersing the body (1) in wax made liquid hot, and turning this body (1) in order to obtain by deposition of

  layers, a mouthpiece with a diameter which may be between 3cm. and 5cm.

  In the embodiment according to Figure 2.

  This process making the internal surface (2) bumpy and irregular is repeated for the

  body (1), having a curve (4). With a mouthpiece (3) made of Beeswax.

  The body (1) as the mouthpiece (3) can be in materials other than those already

  cited, as long as they give the instrument the desired qualities, namely: Sound quality.

  Body having a bumpy and irregular internal surface (2), resistant to cracks due to

  significant temperature differences and high or variable humidity.

  The body (1) can have a variable thickness and diameter as well as its length. The body (1) can be produced by deformation of materials or by molding or molding by

injection.

  With a malleable and interchangeable mouthpiece or of the same material as the body (1).

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  By way of nonlimiting example, the body (1) according to any process can be decorated

on its outer surface.

  The musical instrument according to the invention is intended in particular for musicians from

  countries with highly variable climates and / or high humidity.

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Claims (5)

  1) Wind musical instrument with a mouthpiece characterized in that it comprises a body (1) of plastic or PVC or composite or plastic material mixed with particles of wood or glass fibers, having an internal surface (2 ) bumpy and irregular, a bumpy and irregular outer surface. With a malleable mouthpiece (3), or made of synthetic resin or made of the same material as the body (1). 2) Instrument according to claim I characterized in that the mouthpiece (3) can be obtained with a malleable material, synthetic resin or obtained with the same material as the   body (1), or with natural beeswax.   3) Instrument according to claim 1 or 2 characterized in that the body (1) has one or more soft curves (4).   4) Instrument according to claim I or 2 or 3 characterized in that the body (1) has an outlet flared.   ) Method of manufacturing the instrument according to one of claims I to 4 in that   deforms the tube forming the body (1) to obtain the internal surface (2) or the external surface bumpy and irregular.   6) Method according to claim 5 characterized in that one obtains the internal surface or the   bumpy and irregular outer surface by molding or injection molding.   7) Method according to claim 5 or 6 characterized in that one obtains by deformation, by   molding or injection molding, the shape of the body (1).