JP2012013220A - Vibration isolation pad - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration isolation pad that can absorb oscillation while stably supporting a heavy product.SOLUTION: In the vibration isolation pad 10 in this embodiment, the vibration isolation pad 10 laid under the heavy product for preventing the fall-down of the heavy product includes an elastic sheet 11 formed of an elastic material, and a metal reinforcing plate 15 which is arranged in the elastic sheet 11, and in which a salient 16 for receiving a load of the heavy product is formed by plastic deformation processing. The elastic sheet 11 has an adhesive part 12 formed of adhesive gel, and a vibration isolation rubber part 13 formed of vibration isolation rubber which is harder than the adhesive part 12 and high in resilient elasticity. The salient 16 is formed so that its apex forms a line or a surface, and has a plurality of salients 16a, 16b and 16c which are different in height.

Description

  The present invention relates to an anti-vibration pad for suppressing vibration of a heavy object and preventing overturning, and more particularly to an anti-vibration pad suitable for use on a relatively small heavy object.

  Conventionally, a fall prevention sheet for preventing a relatively small heavy object such as furniture and a tombstone from falling during an earthquake has been provided. As such a fall-preventing sheet, for example, an elastic resin sheet is widely provided and used under a heavy object.

  However, when an elastic resin sheet is laid under a small heavy object that exceeds 50 kg, such as a tombstone, the resin sheet is crushed by the load, and the effect of absorbing vibration can hardly be exhibited. Had occurred. In particular, in the case of a grave with a structure in which gravestones are stacked in multiple stages, a load of 80 to 1,500 kg may be applied depending on the place where the elastic resin sheet is laid.

  In order to solve such problems, the fall prevention sheets disclosed in Patent Documents 1 to 3 below are provided. In the following Patent Documents 1 to 3, it is possible to prevent the resin sheet from being crushed by a load by installing a hard spherical body made of metal together with an elastic resin sheet, or by laminating steel plates while sandwiching hard particles. is doing.

Japanese Patent No. 4238277 JP 2008-256053 A Utility Model Registration No. 3121815

  However, when the sphere is installed on the fall prevention sheet as in the prior art, the load of heavy objects is concentrated on one point, and there are cases where the heavy objects cannot be supported stably.

  This invention is made | formed in view of such a subject, and it aims at providing the vibration isolating pad which can absorb a vibration, supporting a heavy article stably.

  In order to solve the above-described problem, the vibration isolating pad according to the present invention includes an elastic sheet made of an elastic material in the vibration isolating pad laid under the heavy load to prevent the heavy load from overturning, and the elastic sheet. And a metal reinforcing plate in which a raised portion for receiving a load of the heavy object is formed by plastic deformation.

  The vibration-proof pad according to the present invention can absorb vibration while stably supporting a heavy object.

FIG. 1 is a plan view of an anti-vibration pad according to the first embodiment. 2 is a cross-sectional view taken along line AA in FIG. FIG. 3 is a plan view of the vibration-proof pad according to the second embodiment. 4 is a cross-sectional view taken along line BB in FIG. FIG. 5 is a plan view of the vibration-proof pad according to the third embodiment. 6 is a cross-sectional view taken along the line CC of FIG. FIG. 7 is a plan view of an anti-vibration pad according to the fourth embodiment. 8 is a cross-sectional view taken along line DD of FIG. FIG. 9 is a plan view of the vibration-proof pad according to the fifth embodiment. 10 is a cross-sectional view taken along line EE in FIG. FIG. 11 is a plan view of an anti-vibration pad according to the sixth embodiment. 12 is a cross-sectional view taken along line FF in FIG.

Hereinafter, an anti-vibration pad according to an embodiment of the present invention will be described with reference to the drawings.
(First embodiment)
First, an anti-vibration pad according to the first embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a plan view of an anti-vibration pad according to the first embodiment, and FIG. 2 is a cross-sectional view taken along line AA of FIG.

  As shown in FIGS. 1 and 2, the vibration-proof pad 10 according to the first embodiment has a substantially square plate shape, and includes an elastic sheet 11 formed of an elastic member and a metal reinforcing plate 15. ing.

  The elastic sheet 11 is composed of an adhesive portion 12 formed from an adhesive gel material and an anti-vibration rubber portion 13 formed from an anti-vibration rubber material. The adhesive portion 12 includes a substantially square thin sheet portion 12a and a raised portion 12b that is a cylindrical thick portion formed in the center, and the sheet portion 12a is located on the entire lower surface of the elastic sheet 11. . The material of the adhesive part 12 in this embodiment is a transparent silicone gel having adhesiveness.

  The anti-vibration rubber part 13 is joined on the adhesive part 12 excluding the raised part 12b, and has a substantially square shape with a circular hole formed in the center. As a material of the vibration isolating rubber part 13 in the present embodiment, butyl rubber (IIR) which is a material having higher rubber hardness, rebound resilience, and vibration absorption than the material of the adhesive part 12 (silicone gel) is used.

  The reinforcing plate 15 is a substantially disk-shaped plate, and is formed with raised portions 16 that are raised on three circumferences having different radii. The plurality of raised portions 16 are a first annular raised portion 16a, a second annular raised portion 16b, and a third annular raised portion 16c from the inside. A small hole 16h is formed at the center of the first annular protrusion 16a.

  The annular ridge 16 is formed such that the height of each ridge gradually increases from the inside to the outside, with the first annular ridge 16a being the lowest and the third annular ridge 16c being the highest. Yes. Further, the upper surface of the third ring-shaped protruding portion 16 c is substantially the same height as the upper surface of the protruding portion 12 b of the adhesive portion 12. The material of the reinforcing plate 15 in this embodiment is aluminum or stainless steel.

  Next, a method for manufacturing the vibration isolating pad 10 will be described. First, an anti-vibration rubber material is charged into a mold and the anti-vibration rubber portion 13 is formed by compression molding or the like. Further, the reinforcing plate 15 is separately formed by pressing (plastic deformation). Specifically, a metal plate is pressed using a press die to form a substantially disc-shaped reinforcing plate 15.

  Subsequently, if the anti-vibration rubber portion 13 and the reinforcing plate 15 are set in another container and a silicone gel material is injected and cured, the anti-vibration pad 10 is completed. The size of the vibration-proof pad 10 is, for example, 50 mm on a side and 4 mm in thickness.

  As described above, according to the vibration-proof pad 10 according to the present embodiment described in detail, by laying under a small heavy object, the vibration that acts on the heavy object in the event of an earthquake or the like is absorbed and the fall is prevented. It becomes possible. Specifically, since the vibration isolating pad 10 according to the present embodiment includes the reinforcing plate 15 formed by pressing a metal plate, the elastic sheet 11 is crushed by a heavy load. Therefore, both the elastic sheet 11 and the reinforcing plate 15 can absorb vibrations of heavy objects.

  In addition, in the reinforcing plate 15 according to the present embodiment, the ring-shaped raised portion 16 that is a convex portion is raised over a wide range so that the top portion is not a point but a line (circumference), so If there is, it can be reliably supported by the reinforcing plate 15.

  In addition, since the raised portions 16 of the reinforcing plate 15 are formed with a plurality of annular raised portions 16a to 16c having different heights, the raised portions 16 can appropriately deal with a wide range of weights. For example, in the case of a relatively light heavy object, the heavy object is supported only by the highest outer third annular ridge 16c. On the other hand, as the heavy object becomes heavier, the third annular ridge 16c is recessed and deformed, and when the third annular ridge 16c is recessed to the height of the second annular ridge 16b, the third annular ridge 16c. In addition to this, the heavy object is also supported by the second annular protrusion 16b.

  If the raised portion 16 is too strong and the heavy object is supported only by the reinforcing plate 15, the heavy object cannot be supported by the elastic sheet 11, and vibrations cannot be absorbed by the elastic sheet 11. On the other hand, in the present embodiment, by forming a plurality of raised portions 16 having different heights in stages, the raised portions 16 that support heavy objects are selectively used according to the load. The vibration absorbing action by the support of the elastic sheet 11 can be exerted on the heavy object.

  Further, since the plurality of raised portions 16 having different heights are formed in stages, it is possible to adjust the inclination of the heavy object using the vibration-proof pad 10. For example, when installing a tombstone, a meteorite is installed on the base, but the meteorite is often tilted just by installing the meteorite as it is. Tilt adjustment was performed by hitting.

  On the other hand, if the anti-vibration pad 10 is laid in the four corners under the meteorite, the height adjustment can be performed by gradually deforming the plurality of raised portions 16 by hitting the side to be adjusted low. You can adjust the inclination of the meteorite. In addition, when using the anti-vibration pad 10 for a tombstone, it can be used for a new tombstone, and can also be used for improving the earthquake resistance and correcting the inclination of an existing tombstone.

  In this embodiment, since the raised portion 16 of the reinforcing plate 15 is formed by plastic deformation by press working, the reinforcing plate 15 has high strength and can provide a strong vibration-proof pad 10. When manufactured by die casting, the shear strength is lower than when manufactured by plastic deformation, so there is a risk of breakage when the load of heavy objects increases. High shear strength can be realized.

  In this embodiment, since the elastic sheet 11 is provided with a vibration isolating rubber portion 13 made of a vibration isolating rubber having a high rubber hardness and a high impact elastic modulus, the anti vibration isolating rubber portion 13 is provided in the event of an earthquake. It becomes possible to absorb vibrations and prevent the falling of heavy objects.

  Moreover, in this embodiment, since the adhesion part 12 which consists of an adhesive gel material is provided in the elastic sheet 11, the operation | work at the time of setting the vibration isolating pad 10 can be performed easily. The adhesive portion 12 is installed on the entire bottom surface of the vibration-proof pad 10, and when the vibration-proof pad 10 is placed under a heavy object, if the vibration-proof pad 10 is placed on the upper surface of the lower structure serving as a base, The lower structure is firmly bonded to the adhesive portion 12. Therefore, when a heavy object is subsequently installed, it can be prevented that something touches the vibration isolating pad 10 and shifts from a desired installation location. In addition, when installing the anti-vibration pad 10, if an adhesive is used in combination, the adhesion between the anti-vibration pad 10 and the structure can be further increased to further improve the earthquake resistance.

  Although the present embodiment has been described in detail above, the present embodiment can be variously modified without departing from the gist of the present invention. For example, the material of the adhesive portion 12 is not limited to a silicone gel, and any suitable elastic material such as a general polymer gel can be used. Further, as a material of the reinforcing plate 15, a metal other than aluminum or stainless steel such as iron or copper can be used.

  Further, the material of the anti-vibration rubber portion 13 is not limited to butyl rubber, and other rubber-based materials may be appropriately used as long as the material has higher rubber hardness, rebound resilience, and vibration absorption rate than the material of the adhesive portion 12. Can do. For example, natural rubber (NR), isoprene rubber (IR), styrene butadiene rubber (SBR), butadiene rubber (BR), ethylene propylene rubber (EPDM), chloroprene rubber (CR), urethane rubber (U) can be used. .

  However, when durability is required for a long period of time, such as when used for tombstones, it is desirable to use styrene butadiene rubber, butyl rubber, ethylene propylene rubber, chloroprene rubber, or a mixed material thereof.

  Further, the anti-vibration pad 10 can be manufactured by other methods as appropriate, and particularly when the silicone gel material is inhibited from being cured by the sulfur component of the anti-vibration rubber portion 13, the adhesive portion 12 and the anti-vibration rubber portion 13 may be cured separately, and both may be joined later.

(Second embodiment)
Next, an anti-vibration pad according to the second embodiment will be described with reference to FIGS. 3 and 4. FIG. 3 is a plan view of the vibration-proof pad according to the second embodiment, and FIG. 4 is a cross-sectional view taken along the line BB of FIG. As shown in FIGS. 3 and 4, the vibration isolating pad 20 according to the second embodiment has a substantially square plate shape, and includes an elastic sheet 21 formed from an elastic member and a metal reinforcing plate 25. ing.

  The elastic sheet 21 includes an adhesive portion 22 formed from an adhesive gel material and an anti-vibration rubber portion 23 formed from an anti-vibration rubber material. The adhesion part 22 is comprised from the substantially square-shaped thin sheet | seat part 22a and the protruding part 22b which is a cylindrical thick part formed in the center.

  The anti-vibration rubber part 23 is joined on the adhesive part 22 and the reinforcing plate 25 excluding the raised part 22b, and has a substantially square shape with a circular hole formed in the center. Further, the upper surface of the anti-vibration rubber 23 is located slightly lower than the raised portion 22 b of the adhesive portion 22.

  The reinforcing plate 25 is a substantially square plate that is slightly smaller than the anti-vibration pad 20, and is a corrugated plate in which a plurality of raised portions 26 that protrude in parallel at a predetermined interval are formed. The plurality of raised portions 26 raised on the straight line are all the same height.

  Since the material and manufacturing method of the vibration-proof pad 20 according to the second embodiment are the same as those in the first embodiment, detailed description thereof is omitted. Also in the present embodiment, as in the first embodiment, various modifications can be made without departing from the gist of the present invention.

  As described above, according to the present embodiment described in detail, it is possible to absorb vibrations in the event of an earthquake or the like and prevent overturning by laying under a small heavy object as in the first embodiment. It becomes. In the present embodiment, since all the raised portions 26 of the reinforcing plate 25 have the same height, the structure is simple and the manufacturing cost can be reduced.

(Third embodiment)
Next, an anti-vibration pad according to a third embodiment will be described with reference to FIGS. 5 and 6. FIG. 5 is a plan view of the vibration-proof pad according to the third embodiment, and FIG. 6 is a cross-sectional view taken along the line CC of FIG. As shown in FIGS. 5 and 6, the vibration isolating pad 30 according to the third embodiment has a substantially square plate shape, and includes an elastic sheet 31 formed of an elastic member and a metal reinforcing plate 35. ing.

  The elastic sheet 31 is composed of an adhesive portion 32 formed from an adhesive gel material and an anti-vibration rubber portion 33 formed from an anti-vibration rubber material. The adhesive portion 32 includes a substantially square thin sheet portion 32a and a raised portion 32b that is a thick cylindrical portion formed in the center.

  The anti-vibration rubber portion 33 is joined on the adhesive portion 32 and the reinforcing plate 35 excluding the raised portion 32b, and has a substantially square shape with a circular hole formed in the center. Further, the upper surface of the anti-vibration rubber 33 is positioned slightly lower than the raised portion 32 b of the adhesive portion 32.

  The reinforcing plate 35 is an elongated plate-like plate, and is installed in parallel on both sides of the raised portion 32b. A raised portion 36 that is raised on a straight line in the extending direction of the plate is formed. Both raised portions 36 of the reinforcing plates 35 on both sides have the same height.

  Since the material and manufacturing method of the vibration-proof pad 30 according to the third embodiment are the same as those in the first embodiment, detailed description thereof is omitted. Also in the present embodiment, various modifications can be made without departing from the gist of the present invention, as in the first embodiment.

  As described above, according to the present embodiment described in detail, it is possible to absorb vibrations in the event of an earthquake or the like and prevent overturning by laying under a small heavy object as in the first embodiment. It becomes. Moreover, according to this embodiment, since the structure is simple compared with the anti-vibration pad which concerns on the said 1st embodiment and 2nd embodiment, it can manufacture at comparatively low cost.

(Fourth embodiment)
Next, an anti-vibration pad according to a fourth embodiment will be described with reference to FIGS. FIG. 7 is a plan view of the vibration-proof pad according to the fourth embodiment, and FIG. 8 is a cross-sectional view taken along the line DD in FIG. As shown in FIGS. 7 and 8, the vibration isolating pad 40 according to the fourth embodiment has a substantially square plate shape, and includes an elastic sheet 41 formed of an elastic member and a metal reinforcing plate 45. ing.

  The elastic sheet 41 is composed of an adhesive part 42 formed from an adhesive gel material. The reinforcing plate 45 is a substantially square plate, and each side is about half the length of each side of the anti-vibration pad 40. Four raised portions 46 are formed inside the four corners of the reinforcing plate 45.

  The raised portion 46 swells in a substantially cylindrical shape, the upper surface is a flat surface, and a small hole 46h is formed at the center of the upper surface. Further, the upper surface of the raised portion 46 is slightly higher than the upper surface of the elastic sheet 41 and protrudes from the surface of the elastic sheet 41.

  In this embodiment, unlike the first to third embodiments, the vibration-proof rubber portion that is hard and has a high impact resilience is not provided. Therefore, the upper end of the reinforcing plate 45 (upper surface of the raised portion 46) is set higher than the upper surface of the elastic sheet 41 in order to support the heavy object by the reinforcing plate 45 and prevent the elastic sheet 41 from being crushed.

  The material of the vibration isolating pad 40 according to the fourth embodiment is the same as that of the first embodiment except that the vibration isolating rubber material is removed. In the manufacturing method of the vibration isolating pad 40, first, the reinforcing plate 45 is formed by press working, and the reinforcing plate 45 is set in the container. And if silicone gel material is inject | poured and hardened in this container, the vibration isolating pad 40 will be completed.

  As described above, according to the present embodiment described in detail, it is possible to absorb vibrations in the event of an earthquake or the like and prevent overturning by laying under a small heavy object as in the first embodiment. It becomes. In addition, according to the present embodiment, since the vibration-proof rubber portion is not installed, the configuration is simple, so that the manufacturing cost can be reduced. Also in the present embodiment, various modifications can be made without departing from the gist of the present invention as in the first embodiment.

(Fifth embodiment)
Next, an anti-vibration pad according to a fifth embodiment will be described with reference to FIGS. 9 and 10. FIG. 9 is a plan view of an anti-vibration pad according to the fifth embodiment, and FIG. 10 is a cross-sectional view taken along line EE of FIG. As shown in FIGS. 9 and 10, the vibration isolating pad 50 according to the fifth embodiment has a substantially square plate shape, and includes an elastic sheet 51 formed of an elastic member and a metal reinforcing plate 55. ing.

  The elastic sheet 51 includes an adhesive portion 52 formed from an adhesive gel material. The reinforcing plate 55 is a substantially disk-shaped plate that is slightly smaller than the vibration-proof pad 50, and has raised portions 56 that are raised on three circumferences having different radii. The plurality of raised portions 16 are a first annular raised portion 56a, a second annular raised portion 56b, and a third annular raised portion 56c from the inside. A small hole 56h is formed in the center of the first ring-shaped raised portion 56a.

  The annular ridge 56 is formed such that the height of each ridge gradually increases from the inside to the outside, the first annular ridge 56a being the lowest, and the third annular ridge 56c being the highest. Yes. Further, the upper surface of the second ring-shaped raised portion 56 b is substantially the same height as the upper surface of the adhesive portion 52. The upper surface of the third ring-shaped raised portion 56c is slightly higher than the upper surface of the elastic sheet 51, and the elastic sheet 51 is prevented from being crushed by protruding from the surface of the elastic sheet 51 and supporting a heavy object. Yes.

  Since the material and manufacturing method of the vibration-proof pad 50 according to the fifth embodiment are the same as those in the fourth embodiment, detailed description thereof is omitted. Also in the present embodiment, various modifications can be made without departing from the gist of the present invention as in the first embodiment.

  As described above, according to the present embodiment described in detail, it is possible to absorb vibrations in the event of an earthquake or the like and prevent overturning by laying under a small heavy object as in the first embodiment. It becomes. In addition, according to the present embodiment, since the vibration-proof rubber portion is not installed, the configuration is simple, so that the manufacturing cost can be reduced.

(Sixth embodiment)
Next, an anti-vibration pad according to a sixth embodiment will be described with reference to FIGS. 11 and 12. FIG. 11 is a plan view of an anti-vibration pad according to the sixth embodiment, and FIG. 12 is a cross-sectional view taken along line FF in FIG. As shown in FIGS. 11 and 12, the vibration isolating pad 60 according to the sixth embodiment has a substantially square plate shape, and includes an elastic sheet 61 formed of an elastic member and a metal reinforcing plate 65. ing.

  The elastic sheet 61 is composed of an adhesive part 62 formed from an adhesive gel material. The reinforcing plate 65 is a substantially square plate that is slightly smaller than the anti-vibration pad 60, and is a corrugated plate in which five raised portions 66 that are raised on a straight line parallel to each other at a predetermined interval are formed. The five ridges 66 have two third linear ridges 66c, 66c at the two ends and one first linear ridge 66a at the center, 66a, and two intermediate second ridges sandwiched between them. The parts are 66b and 66b.

  The raised portions 66 are formed such that the height of each raised portion gradually increases from the center toward both ends, with the first linear raised portion 66a being the lowest and the third linear raised portion 66c being the highest. Yes. Further, the upper surface of the second linear raised portion 66 b is substantially the same height as the upper surface of the adhesive portion 62. The upper surface of the third linear raised portion 66c is slightly higher than the upper surface of the elastic sheet 61, and the elastic sheet 61 is prevented from being crushed by supporting the heavy object by protruding from the surface of the elastic sheet 61. Yes.

  Since the material and manufacturing method of the vibration-proof pad 60 according to the sixth embodiment are the same as those in the fourth embodiment, detailed description thereof is omitted. Also in the present embodiment, various modifications can be made without departing from the gist of the present invention as in the first embodiment.

  As described above, according to the present embodiment described in detail, it is possible to absorb vibrations in the event of an earthquake or the like and prevent overturning by laying under a small heavy object as in the first embodiment. It becomes. In addition, according to the present embodiment, since the vibration-proof rubber portion is not installed, the configuration is simple, so that the manufacturing cost can be reduced.

10, 20, 30, 40, 50, 60 Anti-vibration pad 11, 21, 31, 41, 51, 61 Elastic sheet 12, 22, 32, 42, 52, 62 Adhesive part 13, 23, 33 Anti-vibration rubber part 15 25, 35, 45, 55, 65 Reinforcement plate 16, 26, 36, 46, 56, 66 Bump

Claims (4)

In the vibration-proof pad laid under the heavy load to prevent the heavy load from falling,
An elastic sheet made of an elastic material;
A metal reinforcing plate that is installed in the elastic sheet and has a raised portion for receiving a load of the heavy object formed by plastic deformation;
A fall prevention pad characterized by comprising:   The vibration-proof pad according to claim 1, wherein the elastic sheet has an adhesive portion made of an adhesive gel.   The anti-vibration pad according to claim 2, wherein the elastic sheet further includes an anti-vibration rubber portion made of an anti-vibration rubber that is harder than the adhesive portion and has a high rebound resilience.   The anti-vibration pad according to any one of claims 1 to 3, wherein the protruding portion of the reinforcing plate is formed such that a top portion thereof is a line or a surface.

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