FR2616257A1 - Bridges with four or more support points - Google Patents

Abstract

The invention relates to novel forms of bridges for plucked or bowed stringed musical instruments, which all have at least four feet, and may have more thereof, depending on the models chosen or hybrids. The invention relates to the separation of the strings placed on the tops of the bridges, their dependence and their interdependence or independence with respect to each other. The invention uses plastics, tortoiseshell, ivory, refined bone or pure or alloyed and stainless precious metals. The invention provides a range of bridges, satisfying tastes or individual or communal choice. The invention is aimed principally at instrumentalists, instrument makers, choirists and artistes, and applies to stringed musical instruments. It is also of interest to architects.

Description

MULTIPLE PORTIONS - OR MULTIPLE POR2ESS
The present invention has the functions STABILITY of realistic easels ensuring an eio-etric position, and an angle eg between the vertical axis of the easels and the secants due to the strings placed on the plucked or rubbed string instruments; SEPARATION of the sound wave paths and,: CONCENTRATION of these waves by
Geometric labyrinths, openings, cutouts, internal or external engravings.

Currently, the technical condition of the wooden easels poses 5 questions and problems to solve: 1) How to establish and keep an adjustment of the easels?
2) How to separate the strings, their sound waves, and obtain a sound and visual harmony?
3) What materials should be used, for their solidity, stability, beauty, and sound amplitude, to replace the traditionally used Pea?
4) What new geometric shapes will bring: a stable adjustment, volume, a clean and clear timbre to the educated?
5) How to make these easels, use visual and geometric art, mix the strong ones proposed?
EXPOSURE: the principle of the invention resides in THE PRACTICAL APPLICATION OF THE TXIAXGLE, OF THE CIRCLE, thanks to four spans, or multiple spans, qualified as feet or seated easels made of rigid, semi-rigid, hard, semi-hard materials, including polycarbonates, plastics, scales, precious and stainless metals, ceramics, glass and carbon fibers, purified ivory and @s; Thus, the invention defines direct solutions to the five preceding questions
EXPOSED AND DEVELOPED, the drawings (1 / 3.fig. 1 to 12) clearly show above, the principle of triangulated spans, and its variants, allowing a striated choice of the thirty six basic fores on the front, ( LJ2 / 3), with the side views. The example applied to violins (3 / 3.fig.18) On the soundboard (TS) rest the Feet (P) of the average inclination obtained by the angle (XSY) (A = A) Thus the stability, and the equidistant inclination of the trestles in relation to the stretched strings is established. A longitudinal longitudinal lower round square, oval, or triangular, separates the variable feet, according to the thirty six mod #the base.The length of the transverse spans is suggested three-fifths of the base length, except in the following cases / (2/3 fig.XXV.et3 / 3.fig.XXVIII toXXXVI), including examples XXXIV to XXXVI which are made of precious metals. In case XXV (2 | 3), the span length on the table is complete, connecting the four feet by a thin strip of 3 to 10 / tOene mm.

 ensuring a flexible tension on the soundboard, cut from the basket of the material used.

In the cag XXXY (3/3), there are eight litters whose feet have a shrew
oscillation, allowing to marry the top of the table, thanks to the oval hole above and cslindrique below, the foot being connected to its base plate by a rivet welded on the plate; and riveted in @ t # te (3/3 .fig; 13.17) Thus, the plates of the feet of all these easels are perpendicular to the soundboards, generally made of wood, avoiding their longitudinal bursting.

 Each easel can be made with tilting feet with the choice of fig.14.15.16.17.For le15, the connection of the two feet with the corpçdu easel, is done by a ctlindrique pin, split (genus mechanimbus, inoxy-.

dable) or two flat and fine head screws, fine pitch, housed in a small cylinder, connecting the three parts The feet 14 15 16 can be made in the mass, and hollowed out below, laterally, allowing a continuous connection around the profiled axis (14) or screws, or pin @ (15).

The cuts, of forms, are carried out with the saw, drill, router, laser beam, with the choice, or for the plastics, rolled by injection, hot or cold
The reproduction adapts for the series and dimensions appropriate to the volume of the musical instruments to be fitted.

 The structure of the easels is composed of: polycarbonates, such as plexiElass, plexi / crystal, tinted or transparent, altuglass, plastics composed of scales of various colors, ultramides, precious metals, and stainless such as gold, gray gold , platinum gold, and wave alloys of bronze, brass, ivory and refined bone.

 The metal easels are made with rings of different or equal diameter, depending on the model, and profiles, welded together, with or without filler metal.

 The principle of four spans, or multiple spans applies to all examples, and basic models, with the possibility of mixing the choice of feet, their number and shapes.

 THE OPERATION corresponds to the correct geometrical position (.i)) on the instruments, the digging of the positions of the strings should not exceed 3 / quards of their respective diameter.

 The sound waves entangled by the strings, passing through the remaining labyrinths, reach multiple feet, and transmit the waves, increasing the vibratory capacity, reflected by the soundboards of said instruments.

APPLICATION in the industrial field, extends to the acoustics of the rooms and in their three-dimensional shapes and structures, to decorative and ornamental art, in artisanal or industrial violin making, In the safety of modular constructions, equipped with auto bodies, body cylinder and bumper assemblies, and any parts of depreciation
The use of LASER for the execution of shapes, assisted by the digital memory computer, in extensible shapes. ORFENRERIE creations,

Claims (4)

CLAIMS 10) Design and production of EASELS for musical instruments, with bowed or plucked strings, the main characteristic of which is the range of FOUR FEET OR MULTIPLE FEET. representing an angular triangulation (1 / 1.fig.1à12. 1 / 3.fig.13.14.15 16.) of the bearing surfaces of the feet in relation to the sonnet where the cords lodged are three-quarters of their respective diameters. 2) Design and production of INTERNAL EVIDENCE of the easels, with a view to FACE AND SIDE according to the nodels; whose geometric shapes are applied with art and precision techniques, with the possible use of cutting, engraving, sculpting, ALPHABETS used worldwide, and round, cubic, oblique, triangular patterns. Mixing of these patterns. 3) Use of plastic materials, such as: POLYCARBONATES.PLEXIGLASS. PBECIOUS AND STAINLESS STEEL METALS and their various alloys IVORY BONES. VERRS AND CARBON FIBERS. 4) Design of adjustable feet, with a flexible and fine strap, fixed feet to adjust to the shapes, 5) RANGE OF CIEVALETS? for all bowed or plucked string instruments. Internal mixing, interdependent of the examples of models (1 / 1.1 / 2/1/3.) Of the front and side views. 6) Geometric separation of the vertices supporting the strings.