JP4937237B2 - Vibration prevention support device - Google Patents

Description

  The present invention relates to an anti-vibration support device, and more particularly to an anti-vibration support device that supports audio equipment or precision equipment such as a microscope.

  Audio equipment has a vibration source such as a power transformer inside, or contains a vibration source such as a speaker, so vibration energy is generated inside the equipment, and these vibrations greatly affect the playback sound. It affects the degradation of the sound or the sound image localization. In addition, the generation of very small vibrations, such as vibrations caused by signal currents in the circuit and ambient magnetic fields, can cause vibrations with different levels of vibration, bandwidth, and vibration frequency due to various causes. These vibrations also greatly affect the reproduced sound and affect the deterioration of the sound quality or the sound image localization. One such countermeasure is a conical spike as described in Japanese Patent No. 3848987.

  FIG. 11 is a cross-sectional view showing a structure of a conventional vibration preventing support device using spikes having a conical structure. The spike includes a spike receiver 111, a first spike 110 inserted into the spike receiver 111, a second spike 120 superimposed on the first spike 110, and a liquid 113 inserted into the spike receiver 111.

  The first spike 110 is composed of an upper cylindrical portion 114 and a lower conical portion 115, the second spike 120 is composed of an upper cylindrical portion 121 and a lower conical portion 122, and the conical portion 122 is a first conical portion 122. It is supported on the upper surface of the cylindrical portion 114 of one spike 110. An acoustic device such as a speaker for preventing vibration is placed on the upper surface of the second cylindrical portion 121.

  Such an anti-vibration support device has been put to practical use in order to shield external vibration with a microscope or a precision measuring instrument.

However, the vibration propagation characteristics within the conical shape and the influence of reflection at the end cause a fluctuation in the propagation characteristics. As a result, white noise is not completely removed, and the vibration propagation characteristics are not sufficiently improved.
Japanese Patent No. 3848987

  As described above, the spike having a conical structure is widely spread and exhibits its effect. In particular, in a multi-stage structure, a liquid that has a vibration absorbing function as a secondary effect is used for the purpose of vibration isolation by a liquid. In addition, a conical spike having a single-stage structure has been effective by pouring a liquid into a spike receptacle with which the spike tip is in contact as vibration suppression oil to provide a minute vibration absorbing function.

  However, oil, silicon, water, and the like have been used as liquids that flow into the spike receiver of the conventional vibration prevention support device, and these liquids have been mainly intended for vibration isolation. These liquids such as oil, silicon, and water that have flowed into the spike receiver have small molecular weights, and even if they are viscous, they do not lead to vibration or resonance due to elasticity. There was no big effect.

  Liquids such as oil, silicon, and water that have flowed into the spike receptacle gradually diminishes due to evaporation or stagnation due to capillary action, eventually disappears to a dry state, and loses its effectiveness. It was necessary to refill the liquid.

The present invention realizes an anti-vibration support device that improves the solution filled in the spike receiver, and is housed in the spike receiver, the upper cylindrical portion on which the mounted device is placed, and the spike receiver. The spike portion is supported by the spike receiver, and the spike receiver is filled with an aqueous solution of high molecular weight polyethylene glycol polymerized in a solid string shape. Then, a high-molecular weight polyethylene glycol string-like molecule is entangled with each other or a water-damper mass system in which water molecules are taken in between the molecules in a complex manner to form an external vibration energy between the molecules or the An anti-vibration support device is provided that absorbs by internal friction between molecules and water molecules .

The present invention provides an anti-vibration support device in which the spike is composed of a first spike and a second spike placed on the first spike.

The present invention, the spikes anti-vibration supporting device constituted by the lower horn portion having a rotating curved shape having an upper of said cylindrical portion and hyperbolic or exponential curve for placing a mounting置機device on the upper surface provide.

According to the present invention, the spike includes a first spike and a second spike placed on the first spike, and the first spike and the second spike are an upper cylindrical portion, providing anti-vibration supporting device constituted by the lower horn portion having a rotating curved shape having a hyperbolic or exponential curve lower.

The present invention comprises a spike receiver formed in a container shape with a shallow bottom and a spike formed on the lower surface of a platform housed inside the spike receiver, the spike being supported by the spike receiver, A spring in which an aqueous solution of a high molecular weight polyethylene glycol polymerized in a solid string form is filled, and the high molecular weight polyethylene glycol string molecules are intertwined with each other or water molecules are intermingled between the molecules. Provided is a vibration preventing support device characterized by constituting a damper mass system and absorbing external vibration energy by internal friction between the molecules or between the molecules and the water molecules .

  The present invention provides an anti-vibration device in which the spike receiver and the mounting base are formed of nylon in a square shape, and spikes are formed integrally with the base described above.

According to the present invention, since the filling water solution of polyethylene glycol solid polymerized string shape at high molecular weight in the receiving spikes, force and bonded portion retaining the molecular structure by a covalent bond between atoms of the polymeric material Flexibility is generated by the rotation of the rotation, which creates a restoring force (rigidity) against deformation due to external force, and becomes a vibrator in relation to the mass of the molecule. Can effectively absorb vibration.

  Furthermore, according to the present invention, the resolving power of audio equipment is greatly improved, sound quality and sound image expression can be improved, and the conventional technology can not fully express the fine reverberation of the recording environment and the timbre of the instrument. It has been improved to express even the subtlety that was not there.

  In particular, noise suppression and harmonic distortion suppression at high frequencies can be performed, the sound quality of the reproduced sound is improved, the sound image becomes sharper, and the sound resolution is remarkably improved.

  By forming the spike receiver in a container shape with a shallow bottom and forming the spike formed on the lower surface of the mounting base housed inside the spike receiver, it can be conveniently used as a vibration prevention device for notebook computers and the like.

  FIG. 1 shows an anti-vibration support device using a spike having a conical structure according to the present invention.

The spike is a spike receiver 1, a first spike 10 inserted so as to be in contact with the inner wall of the spike receiver 1, a second spike 20 superimposed on the first spike 10, and a solid and string-like material put in the spike receiver 1. And an aqueous solution 3 of a high molecular weight polyethylene glycol polymerized .

  The first spike 10 is composed of an upper cylindrical portion 11 and a lower conical portion 12, and the second spike 20 is composed of an upper cylindrical portion 21 and a lower conical portion 22, and the conical portion 22 is the first conical portion 22. The first spike 10 is supported by the upper surface of the cylindrical portion 11. Then, an acoustic device such as a speaker for preventing vibration is placed on the upper surface of the cylindrical portion 21 of the second spike 20.

In the present invention, in particular, a high molecular weight polyethylene glycol polymerized in a solid string form is used. For example, the solid string-like in polymerized high molecular weight polyethylene glycol (PEG) was dissolved solid PEG to PEG in aqueous solution or liquid dissolved in water solution is used.

It creates rigidity (elasticity) with a wide deformation range by the interaction between the force that holds the molecular structure by covalent bond between atoms of high molecular weight polyethylene glycol and the flexibility by rotation at the bond part, and it adheres to the molecule and the molecule periphery An oscillator is formed by the interaction with the mass of a solvent molecule such as water. Furthermore, the friction between the molecules of the solvent such as water adhering between the molecules and around the molecules acts greatly, and the vibration damping effect can be expanded to effectively absorb the vibration.

  Although the double spike has been described in the above embodiment, a single spike can be applied.

  FIG. 2 shows an anti-vibration support device using an exponential structure spike according to the present invention.

  The vibration preventing support device of the present invention comprises a spike receiver 30 and a spike 40. The spike receiver 30 is formed of a cylindrical tube having a bottom 32 and has an inner diameter that is just large enough to insert the spike 40. A frustoconical recess 33 is provided at the center of the bottom 32 of the spike receiver 30.

The spike 40 includes a cylindrical portion 41 and a horn portion 42 having a rotating curved surface shape having a hyperbola or an exponential curve as a ridgeline. The cylindrical portion 41 of the spike 40 is in contact with the inner diameter of the spike receiver 30 with an O-ring 45. The front end portion of the horn portion 42 is fitted in a recess 33 in the bottom portion 32 of the spike receiver 30.

  In FIG. 2, the spike 40 has one stage, but the spike 40 may be stacked in two stages as in FIG.

As before the interior of the spike receptacle 30, the solution 3 of a polymer material is filled at normal temperature.

High molecular weight polyethylene glycol is a substance polymerized with a one-dimensional structure, a more complex two-dimensional structure, and a three-dimensional structure, and various structures, and has the property of maintaining these structures with a covalent bond strength. Therefore, when it is deformed by an external force such as vibration, a restoring force that returns to its original state is generated, and a vibration having the same frequency as the external force is generated together with an inertial force due to the mass. Vibration energy is absorbed by internal friction caused by this vibration. In the case of a solution, a liquid molecule such as a water molecule adheres around the molecule to increase the mass of one molecule, and the vibration energy absorption effect is enhanced by vibrating these molecules. Furthermore, a two- or three-dimensional network structure in which the ends of the one-dimensional structure are connected two- or three-dimensionally can be created, and molecules such as water are incorporated into the network to further improve vibration absorption performance. It is also possible.

Further, some high molecular weight polyethylene glycols have a large effect of polarization moment, and have the effect of absorbing electromagnetic energy by rotating constituent molecules by electromagnetic waves. This effect is expected to suppress the occurrence of vibration due to the electromagnetic field generated in the circuit or circuit board.

For example, in polyethylene glycol (PEG) having a molecular weight of 1 million, more than 70,000 units of carbon C, hydrogen H 2 and oxygen O (—CH 2 —CH 2 —O—) are covalently bonded in series to form a chain structure. The coupling between C and C is considered to be a very long and slender string having a length of about 1.5 mm across O coupled at an angle of about 110 degrees and coupled at an angle of 110 ° . This string has a hard property to maintain the angle of these covalent bonds. On the other hand, each coupling has a flexible structure that can rotate around the coupling axis. In the case of an aqueous solution, this string is partially entangled with other strings, and water molecules are taken inside. For this reason, these strings are entangled in a complicated manner in such a way that molecules such as water adhere to each other or take them in between, so that they are partially constrained to become elastic and form a spring. it is conceivable that. On the other hand, when the molecular weight is large and molecules such as water adhere, the mass of one string increases, and a vibration system is formed by the mutual relationship between the mass of the spring and each molecule. Therefore, when vibration is generated inside the liquid due to external force and the frequency of the external vibration matches the natural frequency, molecules of a solution such as water that vibrates greatly due to resonance and adheres between the strings and around the strings. A vibration-absorbing effect is increased by constituting a kind of spring-damper-mass system in which vibration energy is absorbed by friction between the two .

  FIG. 3 is a side view in which the vibration preventing support device using the exponential structure spike of the present invention is used for a mounted device, and FIG. 4 is a top view thereof.

  A speaker 50 is used as a mounted device. The speaker 50 has a tweeter 51 and a woofer 52, and reproduces sound by vibrating a diaphragm such as cone paper by an input signal from the main amplifier. The vibration preventing support device 100 of the present invention is placed under the speaker and absorbs vibration from the speaker.

  As shown in FIG. 4, one vibration prevention support device 100 is placed on the front lower surface of the speaker 50 and two on the rear lower surface.

As the solution 3, a polymer material solution such as an aqueous solution of high molecular weight polyethylene glycol (PE G) was used.

  In Table 1, as shown in FIG. 3, when the vibration preventing support device using the exponential structure spike of the present invention is used for a mounted device, the conventional silicon 10 (manufactured by Shin-Etsu Silicon Co., Ltd.) is used as the solution. ) And the results of comparison with those using.

  The CDs I auditioned were 箏 kyoku (studied by 6 steps), Vivaldi: Inspiration for harmony (Performance: Italian ensemble), Wagner: “Rakuru” from the second night “Walkure Act 1” (Bayreuth Festival Live 64 ') ).

表に示すように、本発明の指数型構造のスパイクを用いた振動防止支持装置を用いることにより、音の立ち上がりのきつさが取れ、心地よい音になった。うるさくなく、しっとりした伸びのある音で、楽器の存在感が明確になった。あるいは音に深み・真実味が出てきて、楽器の存在感が明確になり、「サー」と言う高周波域の雑音が無く、透明感のある音となった。一つ一つの音の余韻や音の伸びが表現され、楽器周辺の空間の広がりや残響感を感じ取れるようになり、音像の奥行き方向への配置の間隔が広がって分かりやすくなる等多くの効果が得られた。

As shown in the table, by using the vibration preventing support device using the exponential structure spike of the present invention, the sound rises tightly and the sound is comfortable. The presence of the instrument became clear with a noisy and moist sound. Or the sound became deeper and more true, and the presence of the instrument became clearer, and there was no noise in the high frequency range called “sir”, and the sound became transparent. The effects of each sound, such as the reverberation of each sound and the expansion of the sound, can be sensed as the space and reverberation around the instrument can be felt. Obtained.

  FIG. 5 shows a configuration as shown in FIG. 3, and the conventional anti-vibration support device using the exponential structure spike of the present invention is used for a mounted device. The result of having compared the sound image localization at the time of using the anti-vibration support apparatus using a product made from a silicon company for a mounting apparatus is shown.

  FIG. 5 shows an example of Wagner's song.

  5B and 5D are sound image localizations using the vibration preventing support device of the present invention, and FIGS. 5A and 5C are sound image localizations using a vibration preventing support device using silicon 10 in a conventional solution. It is.

  FIGS. 5A and 5B are plan views of the subject S and the speaker P as viewed from above, and show changes in sound image localization before and after and left and right.

  5 (C) and 5 (D) are front views of the subject S and the speaker P as seen from the plan view, and show the vertical and horizontal changes in the sound image localization.

  Each ellipse indicates a sound image recognition position recognized by the sound emitted from the speaker P. T is a sound image position of a timpani, C is a sound image position of a cello, M is a sound image position of a brass instrument, and TN is a tenor (solo). ) Sound image position.

  The vibration preventing support device using the polymer material solution of the present invention can clearly recognize the position of the sound image in the vertical direction and the sense of distance in the front-rear direction compared to the vibration preventing support device using the conventional silicon 10.

  Table 2 and FIG. 6 show a case where a spike having a conical structure is used and the vibration preventing support device using the polymer material solution of the present invention and the conventional vibration preventing support device and vibration preventing support device using water are not used. Compared.

  I auditioned the ballet suite “Triangle Hat” composed by Falla, and examined the changes in the sound image position and overall sound quality of vocals, castanets, trumpet and timpani.

  Table 2 shows the results of a comparison of each item with four subjects and a five-step evaluation of sound quality of 1 to 5 points. Each item is a term that evaluates the sound field reproduction capability, sound resolution (resolution), fidelity, low noise performance, etc. that a two-channel stereo device should have. Evaluation 1 is the worst state and Evaluation 5 is the best state. Means. The score of the evaluation depends on the subjectivity of the individual subject, but in general, when the above evaluation points are very good (close to the ideal state) based on experience in a real sound field such as a performance venue, The score goes down.

表２に示すように、振動防止支持装置を使用しない場合の評価が最低であるのに対し、水を充填したスパイクを用いることで音質が改善されることが示される。更に、充填溶液としてＰＥＧを用いるなら、更にすべての項目において評価点が１以上増加しており、ＰＥＧ溶液が非常に有効であることが示される。

As shown in Table 2, it is shown that the sound quality is improved by using a spike filled with water, while the evaluation when the vibration preventing support device is not used is the lowest. Furthermore, if PEG is used as the filling solution, the evaluation points are increased by 1 or more in all items, indicating that the PEG solution is very effective.

  FIG. 6 is a characteristic diagram, and shows the result of a comparison of sound quality using a vibration preventing support device using the polymer material solution of the present invention and a device that does not use spikes. The line {circle around (1)} is the vibration preventing support device using the polymer material solution of the present invention, the line marked with ◆ is the conventional vibration preventing support device using water, and the line × is not using the vibration preventing support device.

  The anti-vibration support device using the polymer material solution of the present invention has a higher evaluation score than the conventional anti-vibration support device using water in all items, and the effect of the PEG solution is very effective, The anti-vibration support device using the polymer material solution of the present invention is not used for the anti-vibration support device or the conventional anti-vibration support device using water in all respects such as resolution, depth, spread, and sound quality. It shows that it is excellent.

  FIG. 7 shows a case where a vibration preventing support device using the polymer solution of the present invention for a spike having a conical structure is used for a mounted device, and a conventional vibration preventing support device using a spike having a conical structure in water. The result of having compared about the sound image localization at the time of using for a mounting apparatus is shown.

  7 (B) and 7 (D) are vibration prevention support devices of the present invention, and FIGS. 7 (A) and 7 (C) are vibration prevention support devices using water as a conventional solution. Show.

  FIGS. 7A and 7B are plan views of the subject S and the speaker P as viewed from above, and show changes in sound image localization before and after and left and right.

  FIGS. 7C and 7D are front views of the subject S and the speaker P as seen from a plan view, and show changes in sound image localization in the vertical and horizontal directions.

  Each ellipse indicates the sound image recognition position recognized by the sound emitted from the speaker P, C is the sound image position of the castanets, V is the sound image position of the vocal, T is the sound image position of the trumpet, and Ti is the sound image of the timpani. Indicates the position.

  The vibration-preventing support device using the polymer material solution of the present invention clearly recognizes the position of the sound image in the sense of distance in the vertical direction and the front-rear direction compared to the conventional vibration-proof support device using water.

  As shown in the vibration preventing support device of the present invention, by using a polymer material for the solution 3 filled in the spike receiver 1, the resolving power of the audio equipment is greatly improved, and sound quality and sound image expression can be improved. The technology has been improved so that it can express even the subtlety of the recording environment and the subtle features of the instrument's timbre that could not be expressed. This is mainly due to the solid bonds in macromolecules (maintaining the shape by covalent bonds) and the flexibility due to the rotation of intermolecular bonds and the vibration absorption due to the resonance of the elastic force and molecular mass due to the long fibrous structure. it is conceivable that. Thus, vibration absorption is performed efficiently, and the resonance frequency band is widened due to the variation in molecular weight, and the vibration absorption effect extends over a wide band, which is thought to lead to noise reduction.

  From these results, the effect of the liquid filled in the spike receiver 1 is sufficient, and when PEG is used, the effect is greatly increased, sound image localization, reproducibility of the situation at the recording site, and sound quality improvement performance Can be said to be very good. In particular, noise suppression and harmonic distortion suppression at high frequencies can be performed, the sound quality of the reproduced sound is improved, the sound image becomes sharper, and the sound resolution is remarkably improved. There is a significant improvement with the use of the solution compared to the spike alone.

  FIG. 8 is a sectional view showing the structure of another embodiment of the vibration preventing and supporting apparatus of the present invention, and FIG. 9 is a plan view showing the structure of another embodiment of the vibration preventing and supporting apparatus of the present invention.

  A cylindrical space is formed inside the circular spike receiver 50, and a liquid polymer material 3 at room temperature or a polymer material solution 3 at room temperature is filled below the space. A cylindrical spike 51 is in contact with the inner diameter of the spike receiver 50 through an O-ring 52 in the space, and the spike 51 is in a state of floating in the spike solution 3. An oil seal 53 is provided above the internal space of the spike receiver 50 to prevent the solution 3 from leaking.

  An injection pipe 54 for the solution 3 is provided through the spike 51.

Audio equipment or precision equipment is placed on the upper surface of the spike 51 in the same manner as described above.
The mounted audio equipment or precision equipment is adapted to absorb vibration by the solution 3.

  FIG. 10 is a sectional view showing the structure of another embodiment of the vibration preventing and supporting apparatus of the present invention.

The spike receiver 60 is made of nylon and is formed in a rectangular container shape with a shallow bottom, and the internal space is filled with the liquid polymer material 3 at room temperature or the polymer material solution 3 at room temperature. In addition, a square platform 61 made of nylon is accommodated in the spike receiver 60 , and spikes 62 and 62 are formed at four locations on the lower surface of the platform 61 so as to be immersed in the solution 3. A caulking agent 63 is provided between the periphery of the mounting 61 and the spike receiver 60.

  On the stage 61, an A4 type personal computer body or peripheral equipment is placed. Vibrations are absorbed by the solution 3 on the mounted personal computer or peripheral device.

It is sectional drawing which shows the structure of the vibration prevention support apparatus of this invention. It is sectional drawing of the other Example which shows the structure of the vibration prevention support apparatus of this invention. It is a side view which shows the speaker to which the vibration prevention support apparatus of this invention is applied. It is a top view which shows the speaker to which the vibration prevention support apparatus of this invention is applied. FIG. 5A is a plan view using a conventional vibration preventing support device, and FIG. 5B is a vibration preventing support according to the present invention. It is a top view using an apparatus. FIG. 5C is a front view using the conventional vibration preventing support device, and FIG. 5D is a front view using the vibration preventing support device of the present invention. It is a characteristic view which shows the comparison of the sound improvement of the vibration prevention support apparatus of this invention, and the conventional vibration prevention support apparatus. FIG. 7A is a plan view using a conventional vibration preventing support device, and FIG. 7B is a vibration preventing support device according to the present invention. FIG. FIG. 7C is a front view using a conventional vibration preventing support device, and FIG. 7D is a front view using the vibration preventing support device of the present invention. It is sectional drawing of the other Example which shows the structure of the vibration prevention support apparatus of this invention. It is a top view of the other Example which shows the structure of the vibration prevention support apparatus of this invention. It is sectional drawing of the other Example which shows the structure of the vibration prevention support apparatus of this invention. It is sectional drawing which shows the structure of the conventional vibration prevention support apparatus.

Receiving 1 spike receptacle 3 solution 10 first spike 11 cylindrical section 12 conical portion 20 second spike 30 spike receptacle 40 spike 42 horn 50 spikes high molecular material

Claims (6)

It consists of a spike receiver, and a spike composed of an upper cylindrical portion for placing the mounted device on the upper surface and a lower cone portion accommodated in the spike receiver,
The conical portion of the spike is supported by the spike receiver;
The spike receiver is filled with an aqueous solution of a high molecular weight polyethylene glycol polymerized in a solid string, and the high molecular weight polyethylene glycol string molecules are entangled with each other or water molecules are intercalated between the molecules. An anti-vibration support device comprising a spring damper mass system intertwined with each other and absorbing external vibration energy by internal friction between the molecules or between the molecules and the water molecules .   The vibration preventing support device according to claim 1, wherein the spike includes a first spike and a second spike placed on the first spike.   2. The spike according to claim 1, wherein the spike is composed of an upper cylindrical portion on which an apparatus to be placed is placed on an upper surface and a lower horn portion having a rotational curved surface shape having a hyperbola or an exponential function curve. The vibration-preventing support device as described. The spike consists of a first spike and a second spike placed on top of the first spike,
2. The first spike and the second spike are constituted by an upper cylindrical portion and a lower horn portion having a rotating curved surface shape having a lower hyperbola or an exponential curve, respectively. The vibration-preventing support device as described. A spike receiver formed in a container shape with a shallow bottom,
It consists of spikes formed on the bottom surface of the platform stored inside the spike receiver,
The spike is supported by the spike receiver,
The spike receiver is filled with an aqueous solution of a high molecular weight polyethylene glycol polymerized in a solid string, and the high molecular weight polyethylene glycol string molecules are entangled with each other or water molecules are intercalated between the molecules. An anti-vibration support device comprising a spring damper mass system intertwined with each other and absorbing external vibration energy by internal friction between the molecules or between the molecules and the water molecules . 6. The vibration preventing device according to claim 5, wherein the spike receiver and the mounting base are made of nylon in a square shape, and the spike is formed integrally with the above-mentioned mounting base.

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