WO2009015449A1

WO2009015449A1 - Disposal introduced in guitars and similars

Info

Publication number: WO2009015449A1
Application number: PCT/BR2007/000196
Authority: WO
Inventors: Reinaldo Almeida Chaves
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-01
Filing date: 2007-08-01
Publication date: 2009-02-05
Anticipated expiration: 2010-02-01

Abstract

A disposal introduced in musical instruments, like guitars (2), possessing a suspended arm (3) and a cover (4). The posterior surface of the cover is provided with lateral nodules (6-7) arranged parallel and parallel bars (10) with vertical suspended rods (11). The speaker (12) comprises suspended horizontal connecting rods (15) provided with vertical bars forming a curtain (15) and internal connecting rods of sustentation (17).

Description

Title: "DISPOSAL INTRODUCED IN GUITARS AND SIMILARS"." DISCLOSURE OF THE PATENT Refers the present object, the unknown and functional applications introduced in guitars is mentioned and similars, so that if it gets an instrument with bigger sonorous quality, trough a speaker, with thickset and connecting rods of sustentation with vertical curtains; e of one I cover with nodules and suspended rods, that allow to modify the format of the instrument through its interior. It is common in the rope instruments to meet two bilges, a great e a small one. The great bulge is for strengthening the serious notes and the small one, the high notes. And the average notes, where are strengthened? It is question that until then did not have reply. As high notes they are an unfolding of average notes, has an error in the conventional project. Thinking about solving this question, the object in question was developed. When studying the propagation of the frequencies in some ways, a thing called the attention: the nodules. Nodule is any object that hinders or makes it difficult the frequency ticket. Since the frequencies if propagate in feeling horizontal ( in the vertical direction it is not possible), had the two connecting rods of sustentation of I cover it, that they create obstacles almost insurmountable nodules. Then, because not to create nodules in the lesser bulge and to modify the interior of the format of the guitar and with this to obtain that the frequencies have the correct order low, average and high. Improving excessively the sonorous quality. These nodules had been introduced in cover it of the guitar, consistent in rods, with mm of width for 5mm of the height, lodged longitudinally. With this, the format of the guitar gets excited, internally, not to modify its external, accepted format for the users has centuries. Form introduced, also in tit I cover rods of 3 cm of height for 3 cm of width, on them, are glue five lesser rods, lodged in parallel, with 4 at 5 mm of thickness, being able to be squared or round, being 2 cm above of the cover. This suspension is so that I cover it vibrates freely. For the cover to support the pressure of the ropes, the amount of the suspended rods, are very Important for the timbre of the instrument. The thickness of I cover rt is of 4 mm and by all its edge is fixed thickset of isopor. All the instruments are constructed with box of resonance. The box strengthens ail the frequencies. But, no equally all the frequencies are strengthened, for this, would be necessary a resonator for frequency, what it would be impossible, besides demanding an enormous space. Therefore, a system in the box of resonance was introduced, transforming it into speaker, where the noise was extremely audible. The box possess a depth of 9,3 cm in its back part and 8,6 cm in its front part, with a length of 49 cm; the width of the bulge biggest is of 37 cm, the minor is of 24 cm. These measures are conventional in all the guitars, being able to vary a little for more or less. The conventional guitars possess three connecting rods lodged in theinterior of the box, with the purpose to structuralize it. Two extra connecting rods are lodged in the box to give to greater sustention the laterals and the deep one. They will be placed in the way of the lateral. The curtains of connecting rods with 5 mm of thickness in the deep one, give solidity without adding mass. The minimum thickness of the lateral is of 3 cm and of the deep one 4 mm, being able to vary for more, One thickset of 2 cm of width for 1 cm of thickness is fixed in all edge of the box. This thickset has of being constructed with a non-conducting material of vibrations; so that cover can vibrate. Amongst as many tested materials, best it was the industrial isopor. The arm, in the conventional guitars is fixed together to covers it, creating resistance to the ticket of the sound. In the model in question, the arm is suspended on covers it, not leaning, what it creates a ticket for the sound without blockages. One has supported posterior of the arm, higher, allows that the superior part of the arm, where finds the scale, is suspended, on covers it, forming goes on covers it. The presented modifications aim at to the improvement of the instrument, in its sonorous quality distinguested, what it 1 can be used in any instrument of rope that always keeps the analogous format

2 to the one of the guitar.

3 BRIEF DESCRIPTION OF THE DRAWINGS

4 For a perfect visualization and understanding of the "DISPOSAL

5 INTRODUCED IN GUITARS AND SINRLARS" in question they follow the

6 illustrative drawings, where:

7 The picture 1 - a perspective sight presents frontal of the object in question;

8 The picture 2 - a perspective lateral sight of the object in question presents,

9 with one close detailing the suspended arm; i o The picture 3 - a posterior sight presents of covers it of the object in question;

11 The picture 4 - on internal perspective sight of the box of the object in question

12 presents;

13 The picture 5 - a perspective sight of the arm presents and covers of the

14 object in question.

15 ^' DETAILED DESCRIPTION OF THE PATENTE

16 In accordance with the illustration and in its details, the " DISPOSAL

17 INTRODUCED IN GUITARS AND SIMILARS" is characterized for being is constituted of a musical instrument of rope (1), as guitar (2), possessing a

19 suspended arm (3) on covers it (4), forming goes (5); I cove it (4) possess in its 0 posterior face (4A)₁ lateral nodules (6-7) lodged in longitudinal parallels and 1 (6A-7A), locked up in the rods superior (8) and inferior (9) conventional; 2 sustentation rods parallel bars (10) are fixed under suspended vertical rods

23 (11); possessing still, to a speaker (12) one thickset (13) of isopor (14) where it 4 will be placed cover (4) with suspended horizontal connecting rods (15),

25 provided with vertical connecting rods, forming a curtain (16), with conventional 6 concaves internal connecting rods of sustentation (17) and connecting rods of 7 lateral reinforcements (18).

Claims

CLAtMS 1st) "DISPOSAL INTRODUCED SN GUITARS AND SIMILARS", For being constituted of a musical instrument of rope (1), as guitars (2), possessing a spended arm (3) on cover (4), forming go (5); cover (4) possess in its posterior face (4A)₁ lateral 5 nodules (6-7) lodged in longitudinal parallels and (6A-7A), locked up in the rods 6 superior (8) and inferior (9) conventional; sustentation rods parallel bars (10) are fixed 7 under suspended vertical rod (11); possessing still, the speaker (12) one thickset (13) of isopor (14) where wilt be placed I cover it (4) with suspended horizontal connecting 9 rods (15), provided with vertical connecting rods, forming a curtain (16), withiO conventional concaves internal connecting rods of sustentation (17) and connecting 11 rods of lateral reinforcements (18).