JP5366766B2 - Insulator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a novel insulator which is simplified in structure to facilitate installation work and has not only an insulator-original function of cutting off or damping vibration of an acoustic device such as a speaker or a player but also a function as spikes (mechanical earth) of transferring the vibration of the acoustic device to any specific part, in combination. <P>SOLUTION: The insulator includes: an insulator body 4 having an upper part 7 formed conical; and a vibration transfer supporting member which is configured freely removable from the insulator body and used for directly transferring vibration from an acoustic device through the insulator body to any specific part. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an insulator suitably used for an audio device such as an audio speaker, a player, or an amplifier, and in particular, functions other than the original function of an insulator that blocks transmission of vibrations of an audio device such as a speaker or a player to other devices. Furthermore, the present invention relates to a novel insulator that also has a function as a spike (mechanical earth) that transmits vibrations of an acoustic device to a specific part.

  Conventionally, in audio devices such as the above audio speakers, players, or amplifiers, vibrations of these speakers, players, etc. are applied to other audio devices arranged around the floor, table, speaker stand, etc. In order to prevent propagation and influence on other acoustic devices and the like and the occurrence of resonance and the like, a device called an insulator that cuts off or attenuates vibration of an acoustic device such as a speaker is used.

  As techniques relating to such an insulator, for example, those disclosed in JP-A-10-304484, JP-A-2005-24067, JP-A-2006-279178, JP-A-2009-124336 and the like have already been disclosed. Proposed.

  The insulator according to the above-mentioned Japanese Patent Application Laid-Open No. 10-304484 is an insulator that is arranged between a housing having a vibration source inside and a support surface that supports the housing, and absorbs vibrations of the housing. A support member that supports the bottom of the support member, a receiving member that is placed on the support surface, and a vibration absorbing member that is disposed between the supporting member and the receiving member. It consists of a rod-shaped member and is configured such that its lower end is point-supported with respect to the member.

  Further, a supporting device for a device casing according to the above Japanese Patent Application Laid-Open No. 2004-22592 includes a supporting leg main body having a spike body and a stand base for supporting the axial center of the spike body. Is integrated into the main support in a loosely fitted state.

  The insulator according to Japanese Patent Application Laid-Open No. 2005-24067 is in contact with a target surface support body that is in contact with the support target surface, a leg body that is placed in contact with the installation surface, and an installation surface of the leg body. Three movable part support parts provided on the back side of the part for supporting the object by the tip and the three movable part support parts provided on the back side of the part contacting the support target surface of the target surface support body. And a movable part capable of moving such that the inclination of the target surface support relative to the leg changes while contacting each other.

  Furthermore, the insulator according to JP 2006-279178A comprises an upper insulator (1) and a lower insulator (2), and the upper insulator (1) has a conical protrusion (3) facing downward. The lower insulator (2) is an insulator having a recess (4) that receives the conical protrusion (3), and a recess (3a) is formed at the tip of the conical protrusion (3). A ball (X) is fitted to 3a).

  The insulator according to JP 2009-124336 A is an insulator that is inserted between an acoustic device and an installation surface and supports the acoustic device, and is made of synthetic resin and has a recess formed on the lower surface. A target surface support whose upper surface is in contact with and supported by the support target surface of the acoustic device, an upper plate that is formed in a plate shape using metal as a material and is attached to the back surface of the concave portion of the target surface support, A leg that is made of resin and has a recess formed on the upper surface and a lower surface in contact with the installation surface, and a lower part that is formed in a plate shape and made of metal and is attached to the inner surface of the recess. The plate is formed in a spherical shape, and at least a part of the lower side is inserted into the recess of the leg and makes point contact with the upper surface of the lower plate, and at least a part of the upper side is in the recess of the target surface support , An acoustic ball contact the upper surface and the point of the upper plate is input is obtained by configured with.

JP-A-10-304484 JP 2004-22592 A JP-A-2005-24067 JP 2006-279178 A JP 2009-124336 A

  However, the conventional insulator has the following problems. That is, in the case of the conventional insulator and the supporting device for a device casing, there is a problem that the structure is complicated and the installation work becomes complicated.

  In addition, in the case of the conventional insulator and the supporting device for the equipment casing, the sound absorber such as a speaker has only a function of blocking or attenuating vibration or a function of mechanical ground for releasing the vibration. Depending on the type and configuration of the sound or the installation location of the audio equipment such as a speaker, a function of blocking or attenuating vibration is required, or a function of mechanical earthing that releases vibration is required. It had a technical problem that it could not cope with the function.

  Therefore, the present invention has been made to solve the above-described problems of the prior art, and its object is to have a simple structure and easy installation work, and to achieve sound such as speakers and players. It is an object of the present invention to provide a novel insulator having not only an original function of an insulator that cuts off or attenuates vibration of a device but also a function of a spike (mechanical earth) that transmits vibration of an acoustic device to a specific part.

That is, the invention described in claim 1 is disposed between an acoustic device such as a speaker and an installation unit for installing the acoustic device, and blocks or attenuates vibration from the acoustic device, or the acoustic device. In an insulator for directly transmitting vibration from a specific part,
An insulator body having an upper portion formed in a conical shape, and a vibration transmission assist that is configured to be detachable from the insulator body and used to directly transmit vibration from the acoustic device to a specific part via the insulator body. With members,
The insulator body is made of a material having relatively large rigidity and low internal loss. The insulator body is disposed at the center of the insulator body so that the tip is in contact with the acoustic device and the vibration is isolated from the bottom of the insulator body. A vibration transmitting member in which a gap is formed, and the vibration transmitting auxiliary member is detachably mounted;
A vibration isolator made of a material having a relatively smaller rigidity and a larger internal loss than the vibration transmission member and arranged integrally on the outer periphery of the vibration transmission member to block or attenuate the vibration transmitted to the vibration transmission member It is an insulator characterized by comprising.

  According to a second aspect of the present invention, there is provided a disk-shaped member that is installed on a lower surface of the insulator main body and is in contact with a vibration blocking member of the insulator main body, and a bolt member that protrudes from the lower surface of the disk. The insulator according to claim 1, further comprising a base plate member made of

Further, the invention described in claim 3 is a cylindrical vibration absorbing member that is installed on the lower surface of the insulator body and is made of an elastic material that absorbs vibration,
A base member installed below the vibration absorbing member and in contact with a vibration transmission auxiliary member mounted on the vibration transmission member;
The insulator according to claim 1, further comprising:

According to a fourth aspect of the present invention, there is provided a cylindrical vibration absorbing member made of an elastic material that is interposed between the insulator main body and the installation portion and absorbs vibration.
A vibration transmission auxiliary member attached to the vibration transmission member such that the tip contacts the surface of the installation portion;
The insulator according to claim 1, further comprising:

  According to the present invention, the structure is simple and the installation work is easy, and in addition to the original function of an insulator that cuts off or attenuates the vibration of an audio device such as a speaker or a player, the vibration of the audio device is specified. It is possible to provide a novel insulator that also functions as a spike (mechanical earth) that is transmitted to a part.

It is an external appearance perspective view which shows the insulator which concerns on Embodiment 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram which shows the 5.1 channel surround type sound system which can apply the insulator which concerns on Embodiment 1 of this invention. It is a block diagram which shows the installation state of the insulator which concerns on Embodiment 1 of this invention. It is a longitudinal cross-sectional view which shows the insulator main body which concerns on Embodiment 1 of this invention. It is an external appearance perspective view which shows the vibration transmission member and vibration cutoff member of the insulator main body which concern on Embodiment 1 of this invention. It is the top view and bottom view which show the insulator main body which concerns on Embodiment 1 of this invention. It is a front view which shows the insulator main body which concerns on Embodiment 1 of this invention. It is a block diagram which shows the bolt member for vibration transmission. FIG. 8 is a cross-sectional view taken along line IX-XI in FIG. 7. It is an external appearance perspective view which shows a base plate. It is an external appearance perspective view which shows a rubber ring and a base. It is sectional drawing which shows the use condition of the insulator main body which concerns on Embodiment 1 of this invention. It is a block diagram which shows the use condition of the insulator main body which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the use condition of the insulator main body which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the use condition of the insulator main body which concerns on Embodiment 1 of this invention. It is a block diagram which shows the use condition of the insulator main body which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the use condition of the insulator main body which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the use condition of the insulator main body which concerns on Embodiment 1 of this invention.

  Embodiments of the present invention will be described below with reference to the drawings.

Embodiment 1
FIG. 2 is a block diagram showing a 5.1 channel surround sound system to which the insulator according to Embodiment 1 of the present invention can be applied.

  In the 5.1 channel surround sound system 1, as shown in FIG. 2, a listener (listener) listens to or listens to music or a video by playing an audio device such as a player or an amplifier (not shown). With the sitting position 2 as the center, the first speaker 3a located in front of the listener, the second speaker 3b located 30 ° right forward, the third speaker 3c located 30 ° left forward, A total of six speakers, a fourth speaker 3d located 120 ° rearward, a fifth speaker 3e located 120 ° rear left, and a subwoofer speaker 3f for bass output (usually arranged in front), Arranged at approximately equal distances along the direction. Note that the subwoofer speaker 3f for low-frequency output is counted as 0.1 channel because the frequency that can be reproduced is limited.

  The 5.1 channel surround sound system 1 can realize a sound environment that is far more three-dimensional and realistic than a conventional stereo system. In addition, as described above, the 5.1 channel surround sound system 1 requires a total of six speakers including the first to fifth speakers 3a to 3e and the low-frequency output subwoofer speaker 3f. It is necessary to avoid the vibrations of 3a to 3f and the vibrations of an audio device such as a player or an amplifier (not shown) from being transmitted to the floor or the like as an installation portion.

  Incidentally, not only the 5.1 channel surround sound system 1 but also other sound systems such as the first to fifth speakers 3a to 3e and the low-frequency output subwoofer speaker 3f. Or vibrations of audio equipment such as players and amplifiers propagate to other equipment such as speakers and players via the floor or shelf on which these audio equipment is installed or speaker stands, etc. In order to prevent this, an insulator is used for the purpose of blocking or attenuating vibration of an acoustic device such as a speaker or a player.

  For example, as shown in FIG. 3, the insulator body 4 is disposed between the speaker 3 and the floor 5, or between the speaker and a table (not shown), a speaker stand, or the like. It is used to prevent vibration from being transmitted to the floor surface 5, the table or the like, or transmitted to the floor surface 5 or the like via a speaker stand.

  1 is an external perspective view showing an insulator according to Embodiment 1 of the present invention.

  In FIG. 1, reference numeral 4 denotes an insulator body. The insulator body 4 has a lower portion 6 formed in a cylindrical shape by combining at least two kinds of metal materials such as stainless steel and aluminum. In addition, the upper part 7 is formed in a conical shape. Note that the insulator according to Embodiment 1 of the present invention can be used only by the insulator body 4. The insulator body 4 is set to have a diameter of about 50 mm and a height of about 40 mm, for example.

  As shown in FIGS. 1 and 4, the insulator body 4 is provided in a state of penetrating along the vertical direction at the center thereof, and functions as a member for transmitting vibration, and the vibration transmitting member. And a vibration isolating member 9 made of a material having a large internal loss for interrupting or attenuating the vibration transmitted to the vibration transmitting member 8.

  The vibration transmitting member 8 is relatively rigid with respect to the vibration isolating member 9 such as a stainless steel such as SUS304, a metal material such as brass, bronze, brass, chrome molybdenum steel, or a material such as wood or synthetic resin. As shown in FIG. 5 (a), most of the material is formed in a cylindrical shape by a material having a high and relatively low internal loss, and the tip 10 protruding upward from the vibration isolating member 9 is As shown in FIG. 1, the insulator body 4 is formed in a conical shape that constitutes the tip of the upper portion 7. Further, the tip 11 of the vibration transmitting member 8 is formed in a sharp shape so as to come into contact with the bottom surface of an audio device such as a speaker in a state close to a point contact, but there is a risk of damaging the bottom surface of the speaker or the like. From the viewpoint of avoiding the problem, it is desirable to polish in an R shape with a small radius of curvature or a fine planar shape as shown in FIGS. Further, as shown in FIG. 4, the vibration transmission member 8 has a total length set slightly shorter than the height of the insulator body 4, and a lower end surface 12 of the vibration transmission member 8 and a lower end surface 13 of the insulator 4. As shown in FIG. 4, a minute gap 14 of about 2 mm is formed between them. The gap 14 forms an air layer that prevents the vibration transmission member 8 from coming into direct contact with the installation portion where the insulator main body 4 is installed and prevents the vibration transmitted to the vibration transmission member 8 from being directly transmitted through the installation portion. Is for.

  Further, as shown in FIG. 4, a female screw portion 15 is formed at the inner center of the vibration transmission member 8 over a length of about 2/3 from the lower end surface 12 thereof. The female screw portion 15 is composed of, for example, a female screw formed by M10 fine grooving with a pitch of 1.25, and the female screw portion 15 includes a female screw portion on the outer periphery as shown in FIG. A vibration transmission bolt member 17 as a vibration transmission auxiliary member in which a male screw portion 16 is formed by M10 fine grooving of the same pitch 1.25 as 15 is detachable by screw coupling. The vibration transmission screw member 17 is, for example, a stainless steel such as SUS304, which is the same material as the vibration transmission member 8, or a metal having relatively high rigidity close to the characteristics of the vibration transmission member 8 and relatively low internal loss. Although it is formed of a material, it is not necessarily limited to a metal material, and may be formed of a material other than metal. The lower end portion (tip end portion) 18 of the vibration transmission bolt member 17 is formed in a conical shape, and vibration can be directly transmitted to other members via the vibration transmission bolt member 17. Yes.

  The vibration transmission member 8 is a member that directly receives the load of the acoustic device such as the speaker 3 and also directly transmits vibration from the acoustic device such as the speaker 3, and is first required to have high rigidity. The Further, the vibration transmission member 8 transmits vibration from an acoustic device such as the speaker 3 to the vibration isolation member 9 or to a specific part of the installation portion via a vibration transmission auxiliary member attached to the vibration transmission member 8. It is a member that plays a role of directly transmitting vibrations, and is preferably formed of a metal material having a relatively small internal loss. However, even if the vibration transmitting member 8 is formed of a metal material having a relatively small internal loss, a gap for blocking vibration is formed between the bottom of the insulator main body 4 as described later. Therefore, vibration is not directly transmitted to the installation portion via the vibration transmitting member 8.

  On the other hand, the vibration isolating member 9 is made of, for example, aluminum alloy such as aluminum or duralumin (for example, A5056, A7075, etc.), magnesium, magnesium alloy, nickel, iron oxide, high carbon flake graphite cast iron, flake graphite cast iron, etc. It is formed of a material having a relatively low rigidity and a large internal loss with respect to the vibration transmission member 8 such as a metal material or a material such as wood, synthetic resin, rubber, etc., and the vibration transmitted to the vibration transmission member 8 is This is for blocking or attenuating so as not to be transmitted to other members.

  Further, as shown in FIGS. 1 and 5B, the vibration isolating member 9 has a lower portion 19 formed in a cylindrical shape constituting the lower portion 6 itself of the insulator body 4, and an upper portion 20 of the insulator 20 being an insulator. The main body 4 is formed in a truncated cone shape that constitutes the upper portion 7 excluding the tip portion. Furthermore, as shown in FIG. 5B, a cylindrical mounting hole 21 for mounting the vibration transmitting member 8 in an integrated state is opened at the center of the vibration blocking member 9. . Further, the lower end surface 13 of the vibration blocking member 9 is formed flat as shown in FIG. 4, and the outer peripheral portion of the gap 14 located at the lower end of the vibration transmitting member 8 has a diameter downward. The tapered surface 22 is inclined so as to increase. The vibration transmitting member 8 is integrally mounted on the vibration blocking member 9 by, for example, being pressed into a mounting hole 21 provided at the center of the vibration blocking member 9 by means such as driving. In accordance with the above, cutting using a lathe or the like is performed to form a predetermined shape.

  Therefore, as described above, the vibration blocking member 9 is a member for blocking or attenuating the vibration transmitted to the vibration transmitting member 8 so as not to be transmitted to other members, and a metal having a relatively large internal loss. Although it is desirable to form with a material, it is not necessarily limited to a metal material. Further, vibration is gradually transmitted from the vibration transmission member 8 to the vibration blocking member 9 via the upper portion 20 formed in the shape of a truncated cone, so that the contact area with the vibration transmission member 8 is small. Can be transmitted to the cylindrical lower portion 19 while being attenuated by a relatively large internal loss, so that the vibration blocking or damping effect is very large.

  Further, as shown in FIG. 1, FIG. 7 and FIG. 9, the outer peripheral surface of the lower portion of the vibration isolating member 9 penetrates into the female screw portion 15 in the radial direction at positions that form an angle of 120 °. As shown in FIG. 9, a screw bolt 23 for fixing (not shown) is screwed to the screw groove 23 and screwed to the female screw portion 15 of the vibration transmitting member 8. The vibration transmitting bolt member 17 can be fixed to a desired length. The screw groove 23 is not provided with a screw portion over its entire length, but is provided only on the back side of the screw groove 23, and the front side (outer peripheral side) of the screw groove 23 is outside the screw groove 23. An insertion hole having a large diameter may be used.

  Further, as shown in FIGS. 1B and 6, a screw groove 24 is formed on the lower end surface of the vibration isolating member 9 at a position that forms an angle of 120 ° with the female screw portion 15 of the vibration transmitting member 8 as a center. 8 is formed, and an installation bolt member 25 as shown in FIG. 8B can be screwed into the screw groove 24. The screw groove 24 separates the insulator body 4 from the installation surface 5 by screwing the installation bolt member 25 into the screw groove 24 and standing on the installation surface using the installation bolt member 25 as a leg portion. It can be arranged in a state.

  Further, as shown in FIG. 7, the vibration isolating member 9 is provided with a knurling process 26 on the outer peripheral surface of the lower portion 19 positioned below the insulator main body 4 as needed, and carries the insulator main body 4. When the insulator body 4 is rotated with the insulator body 4 installed below the acoustic device, the outer peripheral surface of the vibration isolating member 9 is prevented from slipping.

  Furthermore, as shown in FIGS. 10 and 11 (a) and 11 (b), the insulator body 4 includes a pedestal plate 30 as a pedestal plate member and an annular rubber ring 40 as a vibration absorbing member, as necessary. Alternatively, it is used in combination with an optional member such as a disk-shaped base 50 as a base member.

  As shown in FIG. 10, the pedestal plate 30 includes a planar circular disk member 31, and a bolt member 32 is welded to one surface of the disk member 31 at its center. It is fixed by. Further, on the outer periphery of the disc member 31, screw holes 34 for inserting the countersunk screws 33 are opened at positions forming 120 ° with each other, and the disc member 31 is inserted from the lower surface thereof. It is fixed to the screw groove 24 on the lower surface of the insulator body 4 by a countersunk screw 33.

  Moreover, the said rubber ring 40 is formed in the annular | circular shape with elastic materials, such as a synthetic rubber and a sorbosein (trademark), as shown to Fig.11 (a). The rubber ring 40 has an outer diameter equal to the outer diameter of the insulator body 4 and is formed in an annular shape having a rectangular cross section having a predetermined width and thickness. The rubber ring 40 is a member that functions to block or attenuate transmission to the pedestal 50 by absorbing vibration from the vibration blocking member 9 of the insulator body 4.

  Further, as shown in FIG. 11B, the disk-shaped pedestal member 50 is formed in a planar circular disk shape having a predetermined thickness by a metal material such as stainless steel, for example. Further, as shown in FIG. 12, a concave portion 51 having a conical section with which the tip end portion 18 of the vibration transmitting bolt member 17 abuts is formed at the center of the surface of the pedestal member 50. The angle 51 is set to be larger than the angle of the tip 18 of the vibration transmitting bolt member 17. Further, screw holes 52 for inserting the countersunk screws 33 are opened on the outer periphery of the pedestal 50 at positions of 120 ° to each other. The pedestal 50 is provided with countersunk screws 33 inserted from the upper surface thereof. It is fixed to a desired installation part.

  In the configuration described above, the insulator according to this embodiment has a simple structure and is easy to install as described below, and further, an insulator that cuts off or attenuates vibrations of an audio device such as a speaker or a player. In addition to this function, it also has a function as a spike (mechanical earth) that transmits vibrations of the audio equipment to a specific part.

  That is, as shown in FIG. 13, the insulator body 4 according to this embodiment has, for example, a pointed tip 11 facing upward at a position corresponding to the bottom surface 3a of the speaker 3 on the floor surface 5 on which the speaker 3 is installed. 3 to 4 are placed in a state of being directly placed at a predetermined interval, and the bottom surface 3 ′ of the speaker 3 is placed on the tip 11 of the insulator body 4.

  As shown in FIG. 14, vibration 60 is transmitted from the speaker 3 to the insulator body 4 from the tip 11 contacting the bottom surface 3 ′ of the speaker 3. The vibration 60 transmitted to the insulator body 4 is transmitted from the tip 11 to the vibration transmission member 8 and propagates in the vibration transmission member 8 along the longitudinal direction (longitudinal direction). Reflected. Further, the vibration 60 transmitted to the vibration transmission member 8 is gradually transferred to the vibration attenuation member 9 in contact with the vibration transmission member 8 via the upper part 20 formed in the truncated cone shape of the vibration attenuation member 9. In addition to being transmitted, it is gradually absorbed and cut off or attenuated while propagating through the vibration damping member 9 having relatively low rigidity and large internal loss as compared with the vibration transmitting member 8, and vibration 60 on the floor surface 5. Can be prevented from being transmitted.

  Further, the insulator body 4 according to this embodiment is used in combination with a pedestal plate 30 as shown in FIG. The pedestal plate 30 is installed by implanting bolts 32 in the installation section 5 where the audio equipment such as the speaker 3 is installed, and screwing the disk 31 to the insulator body 4 with a countersunk screw. However, the insulator body 4 and the pedestal plate 30 are turned upside down, and the bolt 32 of the pedestal plate 30 is attached to an acoustic device such as the speaker 3, and the tip 11 of the insulator body 4 is brought into contact with the surface of the installation portion 5. You may arrange so that it may.

  In this embodiment, similarly to the insulator body 4 shown in FIG. 14, vibration transmitted from an acoustic device such as a speaker can be cut off or attenuated, and at the lower end of the vibration transmitting member 8 as shown in FIG. 15. The transmission of vibration from the vibration transmission member 8 to the disk 31 of the base plate 30 can be blocked by the provided gap 14.

  Furthermore, as shown in FIG. 16, the insulator body 4 according to this embodiment can also function as a spike (mechanical earth) that transmits vibrations of a sound device such as a speaker or a player to a specific part. It has become.

  In this case, as shown in FIG. 16, the vibration transmission bolt member 17 is screwed to the vibration transmission member 8 of the insulator body 1 through the female screw portion 15 provided at the center of the vibration transmission member 8. At the same time, the tip 18 of the vibration transmission bolt member 17 is disposed in contact with the surface of the installation portion 5 on which concrete or the like is laid.

  Further, as shown in FIG. 16, the insulator body 4 is disposed in the installation portion 5 in which concrete or the like is laid through a rubber ring 40 disposed on the lower end surface of the vibration isolation member 9.

  By doing so, the vibration 60 transmitted from the speaker to the insulator main body 4 is mainly transmitted to the vibration transmission member 8 and concrete or the like via the vibration transmission bolt member 17 screwed to the vibration transmission member 8. Is directly transmitted to the installed section 5. Therefore, the vibration 60 transmitted from the speaker 3 to the insulator body 4 can be directly transmitted to the installation portion 5 via the insulator body 4 and diffused without being diffused to the surroundings via the insulator body 4. It functions as a mechanical ground by performing a so-called spike action, and vibrations transmitted from the speaker 3 to the insulator main body 4 are transmitted unnecessarily to surrounding devices and can be prevented from being affected.

  Further, as shown in FIG. 17, the insulator body 4 has a rod-like bolt member 70 implanted in the installation portion 5 on which concrete or the like is laid, and a vibration transmission bolt member on the vibration transmission member 8 of the insulator body 4. By screwing the rod-shaped bolt member 70 instead of 17, the concrete or the like is placed on the installation portion 5 laid.

  As shown in FIG. 18, the insulator body 4 may be configured such that the tip 11 thereof is in contact with the installation portion 5 and the bolt member 70 is attached to the acoustic device such as the speaker 3.

  1: 5.1-channel surround sound system 1, 3a to 3e: speaker, 4: insulator body, 5: installation portion, 8: vibration transmitting member, 9: vibration blocking member.

Claims (4)

Arranged between an acoustic device such as a speaker and an installation section where the acoustic device is installed to block or attenuate the vibration from the acoustic device or directly transmit the vibration from the acoustic device to a specific part Insulator of
An insulator body having an upper portion formed in a conical shape, and a vibration transmission assist that is configured to be detachable from the insulator body and used to directly transmit vibration from the acoustic device to a specific part via the insulator body. With members,
The insulator body is made of a material having relatively large rigidity and low internal loss. The insulator body is disposed at the center of the insulator body so that the tip is in contact with the acoustic device and the vibration is isolated from the bottom of the insulator body. A vibration transmitting member in which a gap is formed, and the vibration transmitting auxiliary member is detachably mounted;
A vibration isolator made of a material having a relatively smaller rigidity and a larger internal loss than the vibration transmission member and arranged integrally on the outer periphery of the vibration transmission member to block or attenuate the vibration transmitted to the vibration transmission member And an insulator. A pedestal plate member is provided on a lower surface of the insulator main body, and includes a disk-shaped member that comes into contact with a vibration blocking member of the insulator main body, and a bolt member protruding from the lower surface of the disk. The insulator according to claim 1. A cylindrical vibration absorbing member that is installed on the lower surface of the insulator body and is made of an elastic material that absorbs vibration;
A base member installed below the vibration absorbing member and in contact with a vibration transmission auxiliary member mounted on the vibration transmission member;
The insulator according to claim 1, further comprising: A cylindrical vibration absorbing member that is interposed between the insulator body and the installation portion and is made of an elastic material that absorbs vibration;
A vibration transmission auxiliary member attached to the vibration transmission member such that the tip contacts the surface of the installation portion;
The insulator according to claim 1, further comprising:

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