FR2595499A1 - Anti-vibration base device with mechanical decoupling for sound or visual reproduction apparatus and for other equipment - Google Patents

Abstract

The device is a combination of supporting surfaces consisting firstly of a rigid plate 1 made of carbon stiffened by a synthetic resin, then of a flexible gasket 2 made of synthetic resin covering an insulating and resistive dielectric honeycomb packing 3, and finally, as the base, a carbon plate 4 stiffened by a coating of synthetic resins. These superimposed elements are then assembled by adhesive bonding or by means of metallic spacing plates forming local supports. The device is intended to provide a base for sound reproduction equipment, such as hi-fi equipment, and for visual display equipment, such as computer VDUs, television sets or video equipment, in order to avoid disturbance due to vibration.

Description

 The object of the invention relates to a basic antivibration device with mechanical decoupling for phonic or visual reproduction equipment and the like.

It is intended to serve as a base for devices used for acoustic reproduction such as high fidelity music as well as visual reproductions such as computer monitors, televisions or video devices in order to avoid the disturbing effects of vibrations.
In the most widespread current technique, surfaces made up of very light wooden plates are used as support, connected by beams or spacers in openwork wood such as balsa, but the results obtained were still insufficient to suppress all the phenomena of resonance. other disruptive effects.

 The device according to the invention eliminates these drawbacks and makes it possible to obtain a more efficient structural regularity as a sonic barrier with an unequaled lightness ensuring a total anti-vibration effect, not only by absorption, but also by elimination by means of decoupling. mechanical ensuring a solution of continuity in the transmission of vibrations.

 It is made up of a combination of bearing surfaces made up first of all by a rigid carbon plate regulated by a synthetic resin, then by a flexible synthetic resin joint covering covering an insulating and resistant dielectric honeycomb lining, and finally as base surface a carbon plate made rigid by the covering of synthetic resins. These superimposed elements being assembled by gluing or spacing metallic reinforcements forming punctual supports.

In the accompanying drawings, given by way of nonlimiting example, of one of the embodiments of the subject of the invention
Figure 1 shows a perspective view of the constructive elements of the support or base.

 Figure 2 shows the assembly of the elements.

 The base or support, Figures 1 and 2, is constituted by a rigid surface 1 formed by a carbon sheet coated with a polymerized and rigid synthetic resin under this plate 1 is placed a flexible lining also dielectric in synthetic material 2 covering the insulation in the form of honeycombs 3 made of rigid, dielectric, synthetic material which makes it possible, at the same time as a mechanically resistant support, to provide an anti-vibration insulation by the interposed and juxtaposed air knives.

 The bottom 4 is formed by a rigid plate obtained by a carbon sheet coated with synthetic dielectric and hardening resins in order to make it non-deformable.

 This stratification is first glued to form a homogeneous whole, then this assembly is reinforced by metallic structures 5, 6, 7 and others forming four or three feet depending on the surfaces and applications.

 These metal frames have a lower overhang 7, 8, 9 and the like in order to produce spacers separating the base 4 from the bearing surface 11.

 This spacing ensures the mechanical decoupling of the support and forms a stop barrier in the transmission of vibrations or their echo, i.e. those coming from the support are retransmitted by the bearing surface, that is to say the echo.

 Finally, these frames form "groundings" of the masses of static electricity that may have accumulated on the base of the receiving or sound emitting devices.

 These metal reinforcements preferably end with ends 8, 9, 10 shaped as a point.

 This base, characterized by the functional positioning of the materials given its anti-vibration and dielectric qualities, can receive all high-precision sound or visual devices whose emissions or receptions are likely to be disturbed by the vibratory effects by producing a perfect sound barrier eliminating any interference both self-generated and outdoor.

 This is how this same device, with or without a honeycomb, can form an anti-vibration insulating frame for digital compact discs used for sound reproduction of laser reading.

However the forms, dimensions and arrangements of
different elements may vary within the limit of equivalents
like the materials used for their manufacture,
without changing the general conception of the invention
which has just been described.

Claims (2)

 10 Basic anti-vibration device with mechanical decoupling for audio or visual reproduction computer monitor equipment intended to serve as a base for high-fidelity television or video sound devices making it possible to suppress the disturbing effects of vibrations or their echo by creating a solution for continuity in the transmission of sound waves and other disturbing and parasitic effects characterized by the combination of the bearing surfaces formed first by a carbon plate (1) stiffened by stratification of hard synthetic resins (1), then by a jointing lining flexible (2) also made of synthetic resin covering a hard dielectric lining in the form of honeycombs (3) and finally by a base plate (4) of rigid synthetic resin covering a sheet of carbon, these superimposed elements being assembled by bonding and by metallic mounts (5, 6, 7) and others with overhangs making occasional spaced supports ensuring mechanical decoupling.  20 Device according to claim 1 characterized in that the space between the base plate (4) and the bearing surface (11) obtained by the metal frames (5, 6, 7) and the like have points of punctual support produced by the point profiling (S, 9, 10 'of the terminal part of the metal reinforcements constituting earthing while the intermediate space constitutes an anti-vibration and anti-echo barrier.