JP2012119947A - Insulator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an insulator that can stably support an apparatus or a device even when an installation surface is inclined or somewhat undulates and that can suppress transmission of vibration generated by the supported apparatus or device to the installation surface to the most, and that is interposed between the apparatus or device and the installation surface.SOLUTION: An insulator 1 is formed by forming a loading surface 1a of a spherical surface whose radius is larger than that of a discoid main body 1b on the lower side face of the main body 1b. The insulator 1 is formed in an appropriate shape so that a holding bracket 2 is provided for installation on the apparatus or device to be an object of suppressing vibration on the upper side face of the main body 1b. When the insulators 1 are attached on at least three points and mounted on an installation surface 6, each loading surface 1a of the insulator 1 comes into point-contact with the installation surface 6, stably supports the apparatus or device, and diffuses vibration to suppress transmission to the installation surface 6.

Description

  The present invention relates to an insulator that suppresses vibrations generated by various devices and equipment such as speakers, amplifiers, digital video disk devices, and other sound devices, personal computers, and the like.

  Household appliances such as washing machines and refrigerators, video-related appliances such as television receivers, digital video disc players, personal computers and peripherals, and sound equipment and devices such as speakers and amplifiers generate vibration during their operation. It is a source. Since it may be inconvenient if these generated vibrations are propagated to peripheral devices and apparatuses, it is required to suppress the vibrations. In particular, in an acoustic device such as a speaker, the sound quality output by the generated vibration is affected, and the sound quality may be deteriorated. Therefore, an insulator that is a mechanism for blocking the propagation of vibration is employed.

  As the insulator, there are various mechanisms such as a mechanism installed inside a speaker, and it is widely performed that an insulator is interposed between an installation surface such as a floor surface or a shelf surface of a cabinet and an acoustic device. .

  As this type of insulator, Patent Document 1 discloses that when the installation surface is installed on a non-flat installation surface, the gap between the installation surface and the insulator, and the acoustic device and the insulator is eliminated even if the installation surface is formed of a material having a small elastic force. Furthermore, the present invention intends to provide an insulator that can also control horizontal vibration, a target surface support body that supports an object by contacting the insulator with a support target surface, and a leg body that is placed in contact with the installation surface. Provided on the back side of the part that contacts the installation surface of the leg, and provided with three movable part support parts that support the object by the tip, the back side of the part that contacts the support target surface of the target surface support, the three An insul provided with a movable part capable of moving so as to change the inclination of the target surface support relative to the leg while contacting each of the tips of the movable part support Aerator is disclosed.

  Patent Document 2 describes an acoustic device that is provided with an upper insulator and a lower insulator as an insulator capable of faithfully reproducing the original sound by being interposed between the device and the installation surface. The insulator has a conical protrusion facing downward, and the lower insulator is an insulator having a concavity for receiving the conical protrusion, and a recess is formed at the tip of the conical protrusion, and a ball is placed in the recess. An insulator is disclosed in which an appropriate amount of lubricating oil is injected into a recessed portion that is fitted and receives a conical protrusion of the lower insulator.

JP-A-2005-24067 JP 2006-279178 A

  The insulator described in Patent Document 1 has a structure in which the three movable portion support portions held by the lower body and the movable portion that contacts any of these three movable portion support portions are held by the upper body. It is what. Moreover, the insulator described in Patent Document 2 is a combination of an upper insulator in which a ball is fitted to the tip of a conical protrusion and a lower insulator having a recess that receives the conical protrusion.

  Each of the insulators disclosed in Patent Documents 1 and 2 requires an upper structure and a lower structure, and has a complicated structure and a large number of parts. Moreover, in these insulators, it is necessary to adjust so that the insulator arrange | positioned above may become a fixed attitude | position at the time of installation, and it takes the effort at the time of installation.

  Therefore, the present invention provides an insulator that suppresses vibration propagation in a state where it is placed on an installation surface such as a floor surface or a shelf surface of a cabinet by being attached to a device / device that requires vibration isolation. It is an object.

  As a technical means for achieving the above object, an insulator according to the present invention is attached to a device / device to be subject to vibration suppression, and is interposed between the device / device and an installation surface, thereby the device / device. In the insulator which suppresses the vibration generated, a mounting surface facing the installation surface is formed by a part of a spherical surface, and a part of the spherical surface is in contact with the installation surface.

  For example, when an acoustic device such as a speaker or an amplifier is mounted on an installation surface such as a floor surface or a shelf surface of a cabinet, a part of the mounting surface due to the spherical surface of the insulator is in contact with the installation surface. And support the acoustic device. For this reason, it is suppressed that the vibration which an acoustic device generate | occur | produces is transmitted to an installation surface, and propagation of this vibration is suppressed.

  In addition, if this insulator is attached to at least three places and supported at three points, the sound device is stabilized. At this time, even if there is a slight inclination on the installation surface, contact between a part of the spherical surface and the installation surface is reliably maintained, so that the support state at three points is maintained and the attitude of the acoustic device is maintained. Can be kept stable.

  The insulator according to the invention of claim 2 is characterized in that it comprises a contact body portion formed with a spherical surface, and a main body portion that holds the contact body portion and is attached to the apparatus / device. Yes.

  For example, the contact body portion is a cylinder and its end surface is formed into a spherical surface to serve as a mounting surface, and the main body portion is formed with a cylindrical recess that accommodates the column portion of the contact body portion. Is configured to fit into the recess. Alternatively, the contact body portion has a structure in which one end surface of a disk shape is formed into a spherical surface to be a mounting surface, and the main body portion is bonded to the other end surface of the contact body portion. That is, the part where the mounting surface is formed and the part to be attached to the device to be controlled for vibration are configured separately. For this reason, it is possible to employ a combination of materials and structures that satisfactorily attenuate vibrations generated by the devices and apparatuses.

  The insulator according to the invention of claim 3 is characterized in that the contact body part and the main body part are made of wood.

  For example, the main body portion is formed of a maple material and the contact body portion is formed of a hickory material.

  According to the insulator according to the present invention, since the mounting surface faces the installation surface and a part of the spherical surface of the mounting surface comes into contact, the vibration generated by the device / device due to the point contact is obtained. Transmission to the installation surface is suppressed, and propagation of the vibration is suppressed.

  In addition, since it is a spherical surface, even if the installation surface is tilted, it can be reliably brought into contact with the mounting surface, and devices / devices can be installed in a stable posture.

  In addition, according to the insulator according to the invention of claim 2, it is possible to provide a structure having a combination of a metal and a synthetic resin, a carbon resin, a fiber resin, or the like, thereby providing good vibration damping and weight reduction. Can be obtained.

  In addition, according to the insulator according to the invention of claim 3, it is possible to select a material having light weight and good vibration absorbability, and since the degree of freedom of processing is large, it is easy to form into any shape, and each device -Easy to match with the external shape of the device.

It is a top view of the insulator concerning a 1st embodiment of this invention. It is a front view of the insulator shown in FIG. It is a bottom view of the insulator shown in FIG. It is sectional drawing cut | disconnected along AA on FIG. 1 of the insulator shown in FIG. It is a front view of the insulator which concerns on 2nd Embodiment of this invention. It is a bottom view of the insulator shown in FIG. It is a center part longitudinal cross-sectional view of the insulator shown in FIG. It is a figure explaining the use condition of the insulator which concerns on this invention, and is a front view which shows the state attached to the amplifier. FIG. 9 is a rear view of the amplifier shown in FIG. 8.

  The insulator according to the present invention will be specifically described below based on the illustrated preferred embodiments.

  1 to 4 show an insulator 1 according to a first embodiment of the present invention. For example, as shown in FIGS. 8 and 9, a shape suitable for being attached to an amplifier 20 that is a vibration suppression target. It is as that. As shown in the figure, the insulator 1 is a mounting surface 1a by a bottom surface, and the mounting surface 1a is formed by a spherical surface as shown in FIGS. The mounting surface 1a is formed on one end surface of a disk-shaped main portion 1b, and a holding bracket 2 suitable for holding the amplifier 20 is formed on the other end surface side. The radius of the spherical surface forming the mounting surface 1a is made larger than the radius of the disk shape of the main part 1b so that the curvature is reduced.

  As shown in FIG. 1, the holding bracket 2 has an outer shape that conforms to the outer shape of the main body portion 2 and has an appropriate height from the other end surface of the main body portion 2 to the side wall surface of the amplifier 20. Standing up. Further, the inner side surface 2 a of the holding bracket 2 is formed in a flat shape so as to match the wall surface of the amplifier 20. Moreover, since the insulator 1 shown in FIGS. 1 to 4 is attached to the front end portion of the amplifier 20 as shown in FIGS. 8 and 9, the inner side surface 2a that matches between the front wall surface and the side wall surface. The holding bracket 2 is formed so as to be substantially L-shaped in plan view.

  Alternatively, as shown in FIGS. 8 and 9, in the insulator 3 attached to the back surface of the amplifier 20, the inner side surface of the holding bracket 4 has a shape that matches the rear wall, that is, a shape in which the inner side surface is formed only by a plane. The holding bracket 4 is used. Also in this insulator 3, the holding bracket 4 is disposed on the upper side surface of the main body portion 3b, and a mounting surface 3a is formed on the lower side surface of the main body portion 3b.

  As shown in FIGS. 1 and 3, the main body 1b is formed with a through hole 1c penetrating from the mounting surface 1a to the upper surface of the main body 1b. The through hole 1c is passed through the main body 1b. The insulator 1 is attached to the amplifier 20 by screwing a mounting bolt (not shown) to the bottom surface of the amplifier 20. The mounting surface 1a side of the through hole 1c is countersunk to an appropriate depth so that the head of the mounting bolt is accommodated. The insulator 3 is also formed with a through hole (not shown) penetrating from the mounting surface 3a to the upper side surface so that the mounting bolt can be passed therethrough.

  The insulators 1 and 3 according to the present invention configured as described above are attached to an amplifier 20 as a device / apparatus requiring vibration suppression, for example, as shown in FIGS. As shown in these drawings, by attaching to at least three places, the amplifier 20 can be stably supported while being placed on the installation surface 6.

  In a state where the amplifier 20 is placed on the installation surface 6, the installation surface 6 and the placement surfaces 1a and 3a are in contact with each other. In this state, the installation surface 6 and the placement surfaces 1a and 3a are in point contact, and the curvature radius of the placement surfaces 1a and 3a is large, that is, the curvature is small. To do. For this reason, when the vibration generated by the amplifier 20 is transmitted from the insulators 1 and 3 to the installation surface 6, the direction of the vibration is diffused and efficiently attenuated, so that the vibration to the installation surface 6 is reduced. Propagation will be suppressed.

  Further, since the mounting surfaces 1a and 3a are formed of spherical surfaces, even if the installation surface 6 is inclined or slightly wavy, the mounting surfaces 1a and 3a always come into contact with the mounting surfaces 1a and 3a. The attitude of the amplifier 20 is kept stable.

  Next, a second embodiment shown in FIGS. 5 to 7 will be described.

  The insulator 10 according to the second embodiment is composed of a main body portion 11 and a contact body portion 12. The main body 11 is formed in a cylindrical shape, and its lower surface is formed by a spherical surface 11a. A housing portion 11b is formed as a part of the spherical surface 11a and is formed in a cylindrical shape with the axis of the main body portion 11 as a center. In this accommodating portion 11b, the contact body portion 12 is fitted and accommodated, and is fixed by adhesion or the like. On the lower surface of the contact body portion 12, a contact surface 12a having a spherical surface that coincides with the spherical surface 11a of the main body portion 11 is formed. That is, the contact surface 12a and the spherical surface 11a form a common spherical surface and serve as the mounting surface 10a. The curvature radius of the placement surface 10a is made larger than the radius of the cylinder of the main body 11, and the curvature of the placement surface 10a is made smaller. Note that the portion that contacts the installation surface 6 is preferably located in the contact surface 12a even when the installation surface 6 is tilted, and this contact portion is in the contact surface 12a. For example, the spherical surface 11a of the main body part 11 is not necessary, and the main body part 11 can have a disk-shaped outer shape.

  In addition, as with the holding bracket 2 of the first embodiment shown in FIGS. 1 to 4, if a holding bracket (not shown) having an appropriate shape or structure to be attached to a device / device is provided, any arbitrary The insulator 10 can be attached to the apparatus / device.

  The insulator 10 according to the second embodiment of the present invention configured as described above is attached to the amplifier 20 and placed on the installation surface 6 as in the first embodiment, for example. In this state, as in the case of the insulator 1 according to the first embodiment, one point of the contact surface 12a comes into contact with the installation surface 6. Moreover, even when the installation surface 6 is inclined, a part of the contact surface 12a is always in contact with each other, so that the amplifier 20 can be stably supported and the posture can be maintained.

  In the insulator 10 according to the second embodiment, the main body portion 11 and the contact body portion 12 can be made of different materials. For example, the main body part 11 and the contact body part 12 are made of different metals, the main body part 11 is made of metal, and the contact body part 12 is made of synthetic resin or wood, or the main body part 11 and the contact body part 12 Can be composed of different types of wood. The material of the main body 11 and the contact body 12 can be selected according to the nature of the vibration that needs to be suppressed or blocked. Particularly, in the acoustic device, it is preferable that the wooden insulator 10 is used, and a maple material is used for the main body 11 and a hickory material is used for the contact body portion 12 because vibration can be satisfactorily damped. It should be noted that it is preferable to select an appropriate material according to the device or apparatus that is the object of vibration suppression, without being limited to these materials.

  In the embodiment described above, the description has been made as suppressing the vibration of the amplifier, which is an acoustic device. However, if the device / device is required to suppress the propagation of the vibration, it may be used in a personal computer or a household appliance. This insulator can also be used.

  According to the insulator according to the present invention, since the mounting surface in contact with the installation surface is formed into a spherical surface with a small curvature, even if the installation surface is inclined or wavy, it makes point contact with the mounting surface. Thus, it stably supports the devices and devices that are subject to vibration suppression and suppresses the propagation of vibrations. For example, an acoustic device contributes to preventing deterioration of sound quality.

1 Insulator
1a Mounting surface
1b Main part 2 Holding bracket 3 Insulator
3a Mounting surface
3b Main body 4 Holding bracket 6 Installation surface
10 Insulator
10a Mounting surface
11 Main part
11a spherical surface
11b containment
12 Contact part
20 amplifier

Claims (3)

In an insulator that is attached to a device that is subject to vibration suppression and interposed between the device and device and an installation surface to suppress vibration generated by the device or device,
An insulator characterized in that a mounting surface facing the installation surface is formed by a part of a spherical surface, and a part of the spherical surface is in contact with the installation surface.   The insulator according to claim 1, comprising: a contact body portion formed with a spherical surface, and a main body portion that holds the contact body portion and is attached to the device / device.   The insulator according to claim 2, wherein the contact body part and the main body part are made of wood.

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