JP2001012545A - Laminated rubber bearing body - Google Patents

Laminated rubber bearing body

Info

Publication number
JP2001012545A
JP2001012545A JP17771299A JP17771299A JP2001012545A JP 2001012545 A JP2001012545 A JP 2001012545A JP 17771299 A JP17771299 A JP 17771299A JP 17771299 A JP17771299 A JP 17771299A JP 2001012545 A JP2001012545 A JP 2001012545A
Authority
JP
Japan
Prior art keywords
hole
lead
rubber
laminated
laminated rubber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP17771299A
Other languages
Japanese (ja)
Inventor
Masami Ota
雅己 太田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP17771299A priority Critical patent/JP2001012545A/en
Publication of JP2001012545A publication Critical patent/JP2001012545A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To maintain an excellent spring performance and damping performance of a pivotally supporting body by surely pressing the peripheral surface of lead by a laminated rubber with an entirely uniform pressing force when the lead is filled pressingly into a closed hollow formed with a vertical through-hole formed in the laminated rubber. SOLUTION: When lead 30 is filled pressingly in a closed space formed closing the upper and lower ends of a through hole 26 allowing a laminated rubber 25 comprising a rubber layer 21 and a reinforcement plate 22 to pass therethrough in a vertical direction, a hardness of an area 21B with a specified width (t) around the through-hole 26 in the rubber layer 21 is set higher than that of a spring portion 21A of the rubber layer 21 (For example, approx. 40 deg. in JIS hardness is increased to approx. 60 deg.).

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、ゴム層と補強板と
を交互に積層して一体化して成る積層ゴム支承体に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated rubber bearing body in which rubber layers and reinforcing plates are alternately laminated and integrated.

【0002】[0002]

【従来の技術】各種の構造物を免震又は除振可能に支持
する支承体として、積層ゴム支承体が使用されている。
基礎上に構築される建物や据付け台上に設置される精密
機器等においては、地震や通行車両等による外部からの
振動の伝達を極力低減したり、伝達された振動を早期に
減衰することを要求される。また、構築物を地震から保
護したり、さらには、原子力設備、コンピューター、半
導体製造装置あるいは電子顕微鏡など、高い安全性や精
密さを要求される構造体を振動から保護するに際して
は、広い周波数にわたって、振動の大きい地震を遮断す
る他、微振動までを遮断することも要請される。
2. Description of the Related Art A laminated rubber bearing is used as a bearing for supporting various structures in a seismic isolation or vibration isolation manner.
In buildings built on foundations and precision equipment installed on installation stands, minimize the transmission of external vibrations caused by earthquakes and passing vehicles, and reduce the transmitted vibrations as early as possible. Required. In addition, when protecting structures from earthquakes and further protecting structures requiring high safety and precision, such as nuclear facilities, computers, semiconductor manufacturing equipment, and electron microscopes, from vibrations, In addition to blocking large earthquakes, it is also required to block small vibrations.

【0003】このような要請に応じつつ各種の構造物を
免震又は除振可能に弾性支持するために、積層ゴム支承
体が使用されている。この免震支持用の積層ゴム支承体
は、ゴム層と金属や硬質プラスチック板などの補強板と
を交互に一体的に積層した構造を有しており、その上下
の端面には取り付け用のフランジ部材が固着されてい
る。このような積層ゴム支承体は、通常、交互に積層し
たゴム材料と補強板、さらに前記フランジをモールド内
に組み込んで加硫成形することにより一体化する方法で
製造される。前記積層ゴム支承体は、縦方向には高いば
ね定数を有し、横方向には低いばね定数を有しており、
通常、縦横ばね定数比は800以上という大きな値とな
る。
[0003] In order to respond to such demands and to elastically support various structures so as to be seismically isolated or anti-vibration, laminated rubber bearings are used. This laminated rubber bearing for seismic isolation support has a structure in which a rubber layer and a reinforcing plate such as a metal or hard plastic plate are alternately and integrally laminated, and the upper and lower end faces have mounting flanges. The member is fixed. Such a laminated rubber bearing body is usually manufactured by a method in which a rubber material and a reinforcing plate, which are alternately laminated, and the flange are integrated in a mold by vulcanization and molding. The laminated rubber bearing has a high spring constant in the longitudinal direction and a low spring constant in the lateral direction,
Usually, the vertical and horizontal spring constant ratio is a large value of 800 or more.

【0004】一方、前記積層ゴム支承体では、減衰特性
がゴム層自体の内部粘性減衰作用のみであるため、ゴム
種や使用条件によっては振動減衰能が過小になることが
ある。そこで、振動減衰能を向上させるために、ゴム層
及び補強板を上下方向に貫通する孔(空洞)を形成し、
その内部に粘弾性材などの充填材を封入することによ
り、支承体の自由表面積の増大を防いで変形を拘束し、
縦ばね定数の過度の低下を防止しながら、振動減衰能を
増大させる技術が提案されている。このような技術は、
例えば特開昭63−293340号公報に開示されてい
る。その場合、前記貫通孔に封入する充填材として鉛を
使用することが提案されている。この充填材として鉛を
使用するものは、例えば「鉛プラグ入り積層ゴム支承
体」とも呼ばれる。
On the other hand, in the above-mentioned laminated rubber bearing, the damping characteristic is only the internal viscosity damping action of the rubber layer itself, so that the vibration damping ability may be too small depending on the type of rubber and the use conditions. Therefore, in order to improve the vibration damping ability, a hole (cavity) that penetrates the rubber layer and the reinforcing plate in the vertical direction is formed,
By enclosing a filler such as a viscoelastic material in the inside, the deformation is restrained by preventing the free surface area of the bearing body from increasing,
Techniques have been proposed for increasing the vibration damping capacity while preventing the longitudinal spring constant from excessively decreasing. Such technology is
For example, it is disclosed in JP-A-63-293340. In that case, it has been proposed to use lead as a filler to be filled in the through hole. Those using lead as the filler are also referred to as, for example, "laminated rubber bearing members containing lead plugs".

【0005】この鉛を充填する積層ゴム支承体(鉛プラ
グ入り積層ゴム)の場合、前記貫通孔から成る空洞に対
して、該空洞の容積より若干(例えば1%程度)大きい
体積の鉛を圧入(充填率1以上)することにより、該鉛
の周囲を積層ゴムでしっかりと圧迫保持することで所定
のばね性能及び減衰性能を発揮できる製品(積層ゴム支
承体)を得ることが行われている。
In the case of a laminated rubber bearing body (laminated rubber with lead plugs) filled with lead, a volume of lead (for example, about 1%) larger than the volume of the cavity is press-fitted into the cavity formed by the through hole. By performing (filling ratio of 1 or more), a product (laminated rubber bearing body) capable of exhibiting predetermined spring performance and damping performance by firmly holding the periphery of the lead with the laminated rubber is performed. .

【0006】図11は従来の鉛プラグ入り積層ゴム支承
体の縦断面図である。図11において、積層ゴム支承体
50はゴム層21と補強板22とを交互に積層するとと
もに、上下端面にフランジ部材23、24を接合し、こ
れらを加硫成形で一体化して構成されている。前記ゴム
層21及び前記補強板22から成る積層ゴム部25の中
心部には上下方向に貫通する貫通孔26が形成されてお
り、前記上側のフランジ部材23の前記貫通孔26と対
応する位置には開口27が形成され、前記下側のフラン
ジ部材24の前記貫通孔26と対応する位置には開口2
8が形成されている。前記貫通孔26内には鉛30(柱
状の鉛プラグ)が充填され、該鉛30は前記開口27、
28をキャッププレート31、31で密閉することによ
り貫通孔(空洞)26内に圧入状態で封入されている。
FIG. 11 is a longitudinal sectional view of a conventional laminated rubber bearing body containing a lead plug. In FIG. 11, a laminated rubber bearing body 50 is formed by alternately laminating a rubber layer 21 and a reinforcing plate 22, joining flange members 23 and 24 to upper and lower end surfaces, and integrating them by vulcanization molding. . A through hole 26 penetrating vertically is formed at the center of the laminated rubber portion 25 composed of the rubber layer 21 and the reinforcing plate 22. The through hole 26 is formed at a position corresponding to the through hole 26 of the upper flange member 23. An opening 27 is formed, and an opening 2 is formed at a position corresponding to the through hole 26 of the lower flange member 24.
8 are formed. The through holes 26 are filled with lead 30 (column-shaped lead plugs).
28 is hermetically sealed by cap plates 31, 31, and is sealed in a through hole (cavity) 26 in a press-fit state.

【0007】[0007]

【発明が解決しようとする課題】しかしながら、従来の
鉛プラグ入り積層ゴム支承体(上下方向の貫通孔から成
る空洞に鉛を圧入するタイプの積層ゴム支承体)におい
ては、以下図12及び図13を参照して説明するような
解決すべき技術的課題があった。図12は、図11中の
X部分における鉛30を圧入する前の状態(a)と鉛3
0を圧入した後の状態(b)とを比較して示す部分縦断
面図であり、図13は積層ゴム支承体が水平方向に弾性
変位するときの各種の履歴曲線形状つまりばね特性及び
内部損失(減衰能)を例示するグラフであり、(a)は
所定の良好な性能を、(b)、(c)、(d)中の実線
は良好でない各種の状態を示す。なお、(b)、
(c)、(d)中の破線は(a)の履歴曲線を対比させ
て記入したものである。
However, in a conventional laminated rubber bearing containing lead plugs (a laminated rubber bearing of a type in which lead is press-fitted into a cavity formed with vertical through holes), FIG. 12 and FIG. There is a technical problem to be solved as described with reference to FIG. FIG. 12 shows the state (a) and the lead 3 before press-fitting the lead 30 in the X part in FIG.
FIG. 13 is a partial longitudinal sectional view showing a comparison with the state (b) after press-fitting 0, and FIG. 13 shows various hysteretic curve shapes when the laminated rubber bearing is elastically displaced in the horizontal direction, that is, spring characteristics and internal loss. 5 is a graph illustrating (attenuation ability), where (a) shows predetermined good performance, and solid lines in (b), (c), and (d) show various unfavorable states. (B),
The broken lines in (c) and (d) are plotted in comparison with the hysteresis curve in (a).

【0008】すなわち、上下方向の貫通孔から成る空洞
に鉛を圧入するタイプの積層ゴム支承体においては、こ
の貫通孔26の内周面は交互に積層されたゴム層(柔ら
かい層)21と補強板(固い層)22とで形成されてい
るので、圧入充填された鉛30は、図12の(b)に示
すように、ゴム層21に接する部分で該コム層内に過度
に食い込んでしまい、この食い込んだ状態でゴム層21
からの反発弾性力で挟圧されている。また、この過度に
食い込んだ部分では、充填された鉛30の表面は、この
食い込んだ部分と補強板22で圧迫される部分とで過度
に蛇腹状に波を打った形状となってしまい、従って、余
程充填率を高めない限り一様でかつ充分な圧迫保持力が
得られないことから、所定のばね性能及び減衰性能を発
揮できなくなることがある。その対策として、鉛の充填
率を高くすることによりゴム層からの圧迫力を増大させ
て良好な状態を保つように調整することが行われている
が、このような方法では、鉛の表面の波打ち形状(蛇腹
形状)は益々顕著になることもあって、充分な対策とは
ならなかった。
More specifically, in a laminated rubber bearing of a type in which lead is pressed into a cavity formed by vertical through holes, the inner peripheral surface of the through hole 26 is reinforced with a rubber layer (soft layer) 21 which is alternately laminated. Since the lead 30 is formed by the plate (hard layer) 22, the press-filled lead 30 excessively bites into the comb layer at a portion in contact with the rubber layer 21 as shown in FIG. The rubber layer 21
Is pressed by the repulsive elastic force from Further, in the excessively digged portion, the surface of the filled lead 30 has an excessively bellows-like shape between the digged portion and the portion pressed by the reinforcing plate 22. Unless the filling rate is excessively increased, a uniform and sufficient compression holding force cannot be obtained, so that predetermined spring performance and damping performance may not be exhibited. As a countermeasure, it has been practiced to increase the pressing force from the rubber layer by increasing the filling rate of lead to adjust the lead to maintain a good state. The wavy shape (bellows shape) became more and more remarkable, and was not a sufficient measure.

【0009】本発明はこのような従来技術に鑑みてなさ
れたものであり、本発明の目的は、上下方向の貫通孔か
ら成る空洞に鉛を圧入充填するに際し、該鉛の周囲を全
体的に均一な圧迫力で積層ゴムによりしっかりと圧迫す
ることができ、支承体としての本来の良好なばね性能及
び減衰性能を維持することができる積層ゴム支承体を提
供することである。
The present invention has been made in view of such prior art, and an object of the present invention is to fill lead-filled cavities formed with vertical through holes with the lead surrounding the lead as a whole. An object of the present invention is to provide a laminated rubber bearing that can press firmly with a laminated rubber with a uniform pressing force and maintain the original good spring performance and damping performance as a bearing.

【0010】[0010]

【課題を解決するための手段】請求項1の発明は、上記
目的を達成するため、ゴム層と補強板とを交互に積層し
て一体化して成る積層ゴム支承体において、前記ゴム層
及び前記補強板を上下方向に貫通する貫通孔を形成する
とともに、前記ゴム層の前記貫通孔の周囲の所定幅の領
域の硬度を該ゴム層の他の部分の硬度より高くし、前記
貫通孔内に鉛を充填し該貫通孔の上下端を閉塞すること
を特徴とする。
According to the first aspect of the present invention, there is provided a laminated rubber bearing body in which a rubber layer and a reinforcing plate are alternately laminated and integrated to achieve the above object. While forming a through-hole vertically penetrating the reinforcing plate, the hardness of the rubber layer in a region of a predetermined width around the through-hole is higher than the hardness of the other portion of the rubber layer, the inside of the through-hole It is characterized by filling with lead and closing the upper and lower ends of the through hole.

【0011】請求項2〜4の発明は、上記請求項1の構
成に加えて、前記貫通孔が積層ゴム支承体の中心に形成
されている構成、前記貫通孔内に充填される鉛の体積を
該貫通孔の容積より大きくし、該鉛を該貫通孔内に圧入
する構成、あるいは、前記ゴム層の硬度の高い領域は前
記積層ゴム支承体のばね性能に実質的な影響を及ぼさな
い範囲内である構成とすることにより、上記目的を達成
するものである。
According to a second aspect of the present invention, in addition to the configuration of the first aspect, the through hole is formed at the center of the laminated rubber support, and the volume of lead filled in the through hole. Larger than the volume of the through-hole, and the lead is pressed into the through-hole, or the region where the hardness of the rubber layer is high does not substantially affect the spring performance of the laminated rubber bearing. The above object is achieved by adopting a configuration that is within.

【0012】請求項5の発明は、上記目的を達成するた
め、ゴム層と補強板とを交互に積層して一体化して成る
積層ゴム支承体において、前記ゴム層及び前記補強板を
上下方向に貫通する貫通孔を形成し、該貫通孔の内周面
に前記ゴム層より高い硬度のゴムで形成された所定厚さ
のゴムライニングを接合し、前記ゴムライニングの内部
空間に鉛を充填し、前記貫通孔の上下端を閉塞すること
を特徴とする。
According to a fifth aspect of the present invention, in order to achieve the above-mentioned object, in a laminated rubber bearing body in which a rubber layer and a reinforcing plate are alternately laminated and integrated, the rubber layer and the reinforcing plate are vertically arranged. Forming a through hole that penetrates, bonding a rubber lining of a predetermined thickness formed of rubber having a higher hardness than the rubber layer to the inner peripheral surface of the through hole, filling the inner space of the rubber lining with lead, The upper and lower ends of the through hole are closed.

【0013】請求項6〜8の発明は、上記請求項5の構
成に加えて、前記貫通孔が積層ゴム支承体の中心に形成
されている構成、前記貫通孔内に充填される鉛の体積を
該貫通孔の容積より大きくし、該鉛を該貫通孔内に圧入
する構成、あるいは、前記ゴムライニングの厚さは前記
積層ゴム支承体のばね性能に実質的な影響を及ぼさない
厚さに選定される構成とすることにより、上記目的を達
成するものである。
According to a sixth aspect of the present invention, in addition to the configuration of the fifth aspect, the through-hole is formed at the center of the laminated rubber bearing, and the volume of lead filled in the through-hole. Larger than the volume of the through-hole, and press-fitting the lead into the through-hole, or the thickness of the rubber lining is set to a thickness that does not substantially affect the spring performance of the laminated rubber support. The above-mentioned object is achieved by adopting the selected configuration.

【0014】[0014]

【発明の実施の形態】以下、図面を参照して本発明の実
施の形態を説明する。図1は本発明を適用した積層ゴム
支承体の第1実施例を示す縦断面図であり、図2は図1
中の線2−2から見た平面図(上面図)であり、図3は
図1中のA部を拡大して示す部分縦断面図である。図1
〜図3において、積層ゴム支承体50はゴム層21と補
強板22とを交互に積層するとともに、上下端面にフラ
ンジ部材23、24を接合し、これらを加硫成形で一体
化した構造を有する。前記ゴム層21及び前記補強板2
2から成る積層ゴム部25の中心部には上下方向に貫通
する貫通孔26が形成されており、前記上側のフランジ
部材23の前記貫通孔26と対応する位置には開口27
が形成され、前記下側のフランジ部材24の前記貫通孔
26と対応する位置には開口28が形成されている。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view showing a first embodiment of a laminated rubber bearing body to which the present invention is applied, and FIG.
FIG. 3 is a plan view (top view) as viewed from line 2-2 in the inside, and FIG. 3 is a partial longitudinal sectional view showing part A in FIG. 1 in an enlarged manner. FIG.
3 to 3, a laminated rubber bearing body 50 has a structure in which a rubber layer 21 and a reinforcing plate 22 are alternately laminated, and flange members 23 and 24 are joined to upper and lower end surfaces, and these are integrated by vulcanization molding. . The rubber layer 21 and the reinforcing plate 2
A through-hole 26 is formed at the center of the laminated rubber portion 25 made of the rubber material 2 and extends vertically. An opening 27 is formed at a position corresponding to the through-hole 26 of the upper flange member 23.
An opening 28 is formed at a position corresponding to the through hole 26 of the lower flange member 24.

【0015】前記貫通孔26内には柱状の鉛(鉛プラ
グ)30が充填され、該鉛30は前記開口27、28を
キャッププレート31、31で密閉することにより積層
ゴム支承体50内に形成された空洞に封入されている。
上下の各キャッププレート31は一例として複数本のボ
ルト32により上下のフランジ部材23、24に対して
外側(上側及び下側)から着脱可能に取り付けられてい
る。なお、図示の例では、前記開口27、28を段付き
開口にし、その段部の環状面27A、28Aを利用して
前記キャッププレート31、31をボルト止めすること
で、該キャッププレートはフランジ部材23、24の表
面から突出しないようなインロー状態で固定されてい
る。
The through-hole 26 is filled with a columnar lead (lead plug) 30. The lead 30 is formed in the laminated rubber support 50 by closing the openings 27, 28 with cap plates 31, 31. Enclosed in the cavity.
As an example, the upper and lower cap plates 31 are detachably attached to the upper and lower flange members 23 and 24 from outside (upper and lower sides) by a plurality of bolts 32. In the example shown in the figure, the openings 27, 28 are stepped openings, and the cap plates 31, 31 are bolted using the annular surfaces 27A, 28A of the steps, so that the cap plates are flanged members. It is fixed in a spigot state so as not to protrude from the surfaces of 23 and 24.

【0016】また、図示の例では、各段付き開口27、
28の通孔部27B、28Bは前記積層ゴム部25の貫
通孔26と略同じ径寸法を有し、前記柱状の鉛30の端
部は該通孔部27B、28Bまで嵌入している。そし
て、各開口27、28の段部の環状面27A、28Aを
利用してキャッププレート31、31をボルト止めする
ことにより、柱状の鉛30は上下から加圧されて圧縮状
態で前記貫通孔26内に充填されている。
In the illustrated example, each stepped opening 27,
The through-holes 27B and 28B have substantially the same diameter as the through-hole 26 of the laminated rubber portion 25, and the end of the columnar lead 30 is fitted into the through-holes 27B and 28B. Then, by capping the cap plates 31, 31 using the annular surfaces 27 A, 28 A of the steps of the openings 27, 28, the columnar lead 30 is pressed from above and below and the compressed lead 26 is compressed. Is filled in.

【0017】図示の例では、前記柱状の鉛30の端部が
通孔部27B、28Bの途中まで嵌入しており、上下の
各キャッププレート31の内面(鉛30側)には所定高
さの凸部31Aが形成されている。これらの凸部31
A、31Aの高さは、キャッププレート31、31を段
付き開口27、28にねじ止めしたとき、前記貫通孔2
6内の鉛30の上下の端面に所定圧力で圧接され、該鉛
30を貫通孔26内に圧入状態で充填するような寸法に
設定されている。
In the illustrated example, the end of the columnar lead 30 is fitted halfway through the through holes 27B and 28B, and the inner surfaces (lead 30 side) of the upper and lower cap plates 31 have a predetermined height. The projection 31A is formed. These convex portions 31
A, 31A is the height of the through-hole 2 when the cap plates 31, 31 are screwed to the stepped openings 27, 28.
The lead 30 is pressed into the upper and lower end surfaces of the lead 30 at a predetermined pressure, and the lead 30 is set in such a size that the lead 30 is filled into the through hole 26 in a press-fit state.

【0018】また、前記鉛30の長さを、その端部が前
記積層ゴム25の貫通孔26内に位置する長さとし、前
記キャッププレート31の前記凸部31Aの高さを十分
に高くすることで、該鉛30を両端面から加圧して圧入
状態で充填してもよい。さらに、前記キャッププレート
31は平盤状(平板状)など前記凸部31Aのない形状
にしてもよい。凸部31Aのない形状にする場合は、前
記柱状の鉛30の長さを前記通孔部27B、28Bから
若干突出する長さにして、平盤(平板)状のキャッププ
レート31を各開口27、28の段部の環状面27A、
28Aにボルト止めすることにより前記鉛30を両端面
から加圧して圧入状態で充填するようにしてもよい。
The length of the lead 30 is such that its end is located in the through hole 26 of the laminated rubber 25, and the height of the projection 31A of the cap plate 31 is sufficiently high. The lead 30 may be pressurized from both end faces and filled in a press-fit state. Further, the cap plate 31 may have a shape without the convex portion 31A, such as a flat plate shape (flat plate shape). In the case of a shape without the convex portion 31A, the length of the columnar lead 30 is set to a length slightly protruding from the through-hole portions 27B and 28B, and the flat (flat) -shaped cap plate 31 is connected to each opening 27. , 28 annular surface 27A of the step,
The lead 30 may be pressurized from both end faces by bolting to 28A and filled in a press-fit state.

【0019】つまり、鉛30の体積は、上下のキャップ
プレート31、31で開口27、28を閉塞した貫通孔
26(あるいは、該貫通孔と通孔部27b、28B)で
形成された空洞の容積より若干(例えば1%程度)大き
くされており、該鉛30は、上下のキャッププレート3
1、31を取り付ける(ボルト止め)することにより上
下から加圧され、圧縮状態で充填されるようになってい
る。
That is, the volume of the lead 30 is equal to the volume of the cavity formed by the through hole 26 (or the through hole and the through holes 27b, 28B) in which the openings 27, 28 are closed by the upper and lower cap plates 31, 31, respectively. The lead 30 is slightly larger (for example, about 1%).
By attaching (bolting) 1, 1 and 31, pressure is applied from above and below, and filling is performed in a compressed state.

【0020】そこで、本実施例では、前記ゴム層21の
前記貫通孔26の周囲の所定幅tの領域21Bの硬度を
該ゴム層21の他の部分21Aの硬度より高くし、前記
貫通孔26内に鉛30を充填し、上下のフランジ部材2
3、24の開口部27、27に前記キャッププレート3
1、31をボルト止めで固定することにより、鉛30を
該貫通孔(空洞)26内に圧縮状態(充填率1以上、例
えば約1.01)で圧入充填するように構成されてい
る。この場合、前記積層ゴム25の本来の硬度の低い
(柔らかい)ゴム層21Aの硬度は例えばJIS硬度で
約40度(せん断弾性率G4相当)程度に選定され、前
記貫通孔26周りの所定幅tの硬いゴム層21Bの部分
の硬度は例えばJIS硬度で約60度(せん断弾性率G
8〜G10相当)程度に選定される。また、前記所定幅
tは、前記ゴム層21の硬度の高い領域21Bが前記積
層ゴム支承体50のばね性能に実質的な影響を及ぼさな
い範囲内に選定されている。
Therefore, in this embodiment, the hardness of the region 21B of the rubber layer 21 having a predetermined width t around the through hole 26 is made higher than the hardness of the other portion 21A of the rubber layer 21 and the hardness of the through hole 26 is increased. Is filled with lead 30, and upper and lower flange members 2
The cap plate 3 is inserted into the openings 27, 27 of the
By fixing the bolts 1 and 31 with bolts, the lead 30 is press-fitted into the through-hole (cavity) 26 in a compressed state (filling rate of 1 or more, for example, about 1.01). In this case, the hardness of the rubber layer 21A having a low natural hardness (softness) of the laminated rubber 25 is selected to be, for example, about 40 degrees (equivalent to a shear modulus of elasticity G4) in JIS hardness and a predetermined width t around the through hole 26. The hardness of the hard rubber layer 21B is, for example, about 60 degrees in JIS hardness (shear modulus G).
8 to G10). The predetermined width t is selected within a range in which the high hardness region 21B of the rubber layer 21 does not substantially affect the spring performance of the laminated rubber support 50.

【0021】上下のフランジ部材23、24には、積層
ゴム支承体50を上下の構造物や基台等にボルト等で締
結するための複数の取り付け孔33が設けられている。
前記ゴム層21(21A、21B)は所望の硬度及び弾
性係数を有するゴム状弾性材で形成されており、前記補
強板22及び前記上下のフランジ部材23、24は、金
属や硬質プラスチックなどの固くて強度の高い材質で作
られる。前記ゴム21は、生ゴム等のゴム材料を加硫成
形してゴム状弾性体にされたものであり、加硫成形によ
り各補強板22及び上下のフランジ部材23、24と一
体化されたものである。
The upper and lower flange members 23 and 24 are provided with a plurality of mounting holes 33 for fastening the laminated rubber bearing body 50 to the upper and lower structures or the base with bolts or the like.
The rubber layer 21 (21A, 21B) is formed of a rubber-like elastic material having a desired hardness and elastic modulus, and the reinforcing plate 22 and the upper and lower flange members 23, 24 are made of hard metal such as metal or hard plastic. Made of high strength material. The rubber 21 is a rubber-like elastic body formed by vulcanizing a rubber material such as raw rubber, and is integrated with each reinforcing plate 22 and upper and lower flange members 23 and 24 by vulcanization. is there.

【0022】こうして、ゴム層21と補強板22とを交
互に積層して一体化して成る積層ゴム支承体において、
前記ゴム層及び前記補強板を上下方向に貫通する貫通孔
26を形成するとともに、前記ゴム層21の前記貫通孔
26の周囲の所定幅tの領域21Bの硬度を該ゴム層の
他の部分21Aの硬度より高くし、前記貫通孔26内に
鉛30を充填し該貫通孔の上下端をキャッププレート3
1、31で閉塞することにより、充填された鉛30を圧
縮状態(圧入状態)にする積層ゴム支承体50の構成が
得られる。この場合、前記貫通孔26内に充填される鉛
30の体積は該貫通孔内の空洞の容積より例えば約1%
程度大きくされ、該鉛30は該貫通孔26内(空洞)に
圧入状態で充填される。また、前記ゴム層21の硬度の
高い領域21B(厚さt)は前記積層ゴム支承体50の
ばね性能に実質的な影響を及ぼさない範囲内に選定され
る。
Thus, in the laminated rubber bearing body in which the rubber layers 21 and the reinforcing plates 22 are alternately laminated and integrated,
A through-hole 26 is formed through the rubber layer and the reinforcing plate in the up-down direction, and the hardness of a region 21B of the rubber layer 21 having a predetermined width t around the through-hole 26 is adjusted to another portion 21A of the rubber layer. And the lead 30 is filled in the through hole 26, and the upper and lower ends of the through hole are
By closing the lead 1 and 31, the configuration of the laminated rubber support 50 that brings the filled lead 30 into a compressed state (press-fit state) is obtained. In this case, the volume of the lead 30 filled in the through hole 26 is, for example, about 1% of the volume of the cavity in the through hole.
The lead 30 is filled into the through hole 26 (cavity) in a press-fit state. The high hardness region 21B (thickness t) of the rubber layer 21 is selected within a range that does not substantially affect the spring performance of the laminated rubber support 50.

【0023】以上説明した実施例によれば、ゴム層21
の貫通孔26の周囲の所定幅tの領域21Bの硬度を該
ゴム層の他の部分21Aの硬度より高くしたので、上下
方向の貫通孔から成る空洞に鉛を圧入充填した鉛プラグ
入り積層ゴム支承体を製造するに際し、貫通孔26の内
周面におけるゴム層21(21A)の圧迫力を増大させ
るとともに弾性変形量を減少させることができる。その
ため、圧入充填された鉛30が図12の(b)に示すよ
うにゴム層21層内に必要以上に食い込んで過度に蛇腹
状に波を打った形状となる不都合な現象を軽減又は無く
すことができ、もって、圧入充填された鉛30の周囲を
全体的により均一に積層ゴム25でしっかりと圧迫する
ことができる。
According to the embodiment described above, the rubber layer 21
The hardness of the region 21B having a predetermined width t around the through hole 26 is made higher than the hardness of the other portion 21A of the rubber layer. When manufacturing the support body, it is possible to increase the pressing force of the rubber layer 21 (21A) on the inner peripheral surface of the through hole 26 and reduce the amount of elastic deformation. Therefore, it is possible to reduce or eliminate an undesired phenomenon in which the press-filled lead 30 bites into the rubber layer 21 more than necessary as shown in FIG. 12B and becomes an excessively bellows-like shape. Therefore, it is possible to more firmly press the periphery of the press-filled lead 30 with the laminated rubber 25 as a whole more uniformly.

【0024】こうして、積層ゴム部25が水平方向のせ
ん断変形した時に鉛30がゴム部(ゴム層)21内へ逃
げていくことを軽減又は防止することにより、図13の
(b)、(c)、(d)に示すような現象の発生を軽減
又は防止することができる。すなわち、積層ゴム支承体
50により建物等を免震支持して水平方向の振動を減衰
させるときに、図13の(a)に示すような本来のばね
性能及び減衰性能もしくはこれらに近い性能を常に維持
することができる積層ゴム支承体が提供される。
By reducing or preventing the lead 30 from escaping into the rubber portion (rubber layer) 21 when the laminated rubber portion 25 undergoes shear deformation in the horizontal direction, as shown in FIGS. ) And (d) can be reduced or prevented from occurring. That is, when the building or the like is seismically isolated by the laminated rubber bearing member 50 to attenuate horizontal vibrations, the original spring performance and damping performance as shown in FIG. A laminated rubber bearing that can be maintained is provided.

【0025】図4は本発明を適用した積層ゴム支承体の
第2実施例を示す縦断面図であり、図5は図4中の線5
−5から見た平面図(上面図)であり、図6は図4中の
B部を拡大して示す部分縦断面図である。図4〜図6に
示す第2実施例では、ゴム層21及び補強板22を上下
方向に貫通して形成された貫通孔26の内周面に、前記
ゴム層21より高い硬度のゴムで形成された所定厚さu
のゴムライニング35が接合され、該ゴムライニング3
5内の内部空間(空洞)に鉛30を充填した後、上下の
フランジ部材23、24の前記開口部27、28にキャ
ッププレート31、31をネジ32で固定して貫通孔2
6の上下端を閉塞することにより、前記鉛30は圧縮状
態で圧入充填されている。
FIG. 4 is a longitudinal sectional view showing a second embodiment of the laminated rubber bearing body to which the present invention is applied, and FIG. 5 is a line 5 in FIG.
FIG. 6 is a plan view (top view) as viewed from -5, and FIG. 6 is a partial longitudinal sectional view showing a portion B in FIG. 4 in an enlarged manner. In the second embodiment shown in FIGS. 4 to 6, a rubber having a higher hardness than the rubber layer 21 is formed on an inner peripheral surface of a through hole 26 formed by vertically penetrating the rubber layer 21 and the reinforcing plate 22. Given thickness u
Rubber lining 35 is joined to the rubber lining 3
After the lead 30 is filled in the internal space (cavity) inside the cap 5, the cap plates 31, 31 are fixed to the openings 27, 28 of the upper and lower flange members 23, 24 with screws 32, and the through holes 2 are formed.
By closing the upper and lower ends of the lead 6, the lead 30 is press-fitted and filled in a compressed state.

【0026】なお、前記ゴムライニング35は、筒状又
は板状のゴム材で形成され、その外面を貫通孔26の内
面(実質的に貫通孔26の全内周面)に接着(硫硫接着
を含む)又は嵌合接合(圧入嵌合を含む)した状態で積
層ゴム25内に装着される。こうしてゴムライニング3
5を積層ゴム25内に装着した後、鉛30が該ゴムライ
ニング35内の空洞に前述の第1実施例の場合と同様の
要領で圧入充填される。
The rubber lining 35 is formed of a cylindrical or plate-like rubber material, and its outer surface is bonded to the inner surface of the through hole 26 (substantially the entire inner peripheral surface of the through hole 26) (sulfur bonding). ) Or fitted and joined (including press-fitting) in the laminated rubber 25. Thus rubber lining 3
After the rubber 5 is mounted in the laminated rubber 25, the lead 30 is press-filled into the cavity in the rubber lining 35 in the same manner as in the first embodiment.

【0027】そこで、本実施例でも、前記貫通孔26の
内周面に接合される所定厚さuのゴムライニング35の
硬度は該ゴム層21の硬度より高くされ、装着された前
記ゴムライニング35内に鉛30を充填し、貫通孔26
の上下端をキャッププレート31、31で閉塞すること
により、前記鉛30は該貫通孔(空洞)26内に圧縮状
態(充填率1以上、例えば約1.01)で圧入充填され
る。この場合、前記積層ゴム25のゴム層(硬度の低
い、柔らかいゴム層)21の硬度は例えば約G4(JI
S硬度)程度に選定され、前記貫通孔26の内周面に接
合されるゴムライニング35の硬度(ゴム硬度)は例え
ばJIS硬度で約60度程度に選定される。また、ゴム
ライニング35の厚さ1uは、硬いゴムライニング35
がゴム層21が柔らかいゴムから成るゴム層21による
積層ゴム支承体50の本来のばね性能に実質的な影響を
及ぼさない範囲内に選定されている。
Therefore, also in the present embodiment, the hardness of the rubber lining 35 having a predetermined thickness u joined to the inner peripheral surface of the through hole 26 is made higher than the hardness of the rubber layer 21, and Is filled with lead 30, and the through hole 26 is filled.
By closing the upper and lower ends of the lead 30 with the cap plates 31, 31, the lead 30 is press-fitted into the through-hole (cavity) 26 in a compressed state (filling ratio of 1 or more, for example, about 1.01). In this case, the hardness of the rubber layer (low hardness, soft rubber layer) 21 of the laminated rubber 25 is, for example, about G4 (JI
The hardness (rubber hardness) of the rubber lining 35 joined to the inner peripheral surface of the through hole 26 is selected to be, for example, about 60 degrees in JIS hardness. The thickness 1u of the rubber lining 35 is the same as that of the hard rubber lining 35.
Is selected so that the rubber layer 21 made of soft rubber does not substantially affect the original spring performance of the laminated rubber bearing body 50.

【0028】図4〜図6の第2実施例は、以上説明した
点で図1〜図3の第1実施例と相違するが、その他の部
分では実質上同じ構成をしており、それぞれ対応する部
分を同一符号で示し、それらの詳細説明は省略する。以
上図4〜図6で説明した第2実施例によれば、ゴム層2
1及び補強板22を上下方向に貫通する貫通孔26の内
周面に前記ゴム層21より高い硬度のゴムで形成された
所定厚さuのゴムライニング35を接合し、該ゴムライ
ニング35の内部空間に鉛30を充填し、前記貫通孔2
6の上下端をキャッププレート31、31で閉塞して前
記鉛30を積層ゴム25内に圧縮状態で圧入充填するよ
うに構成したので、前述の第1実施例の場合と同様に、
上下方向の貫通孔から成る空洞に鉛を圧入充填した鉛プ
ラグ入り積層ゴム支承体を製造するに際し、鉛30の周
面に対する貫通孔26の内周面の圧迫保持力を増大させ
るとともに弾性変形量を減少させることができる。
The second embodiment shown in FIGS. 4 to 6 is different from the first embodiment shown in FIGS. 1 to 3 in the points described above, but has substantially the same configuration in other parts. The same reference numerals are used to denote the same parts, and their detailed description is omitted. According to the second embodiment described above with reference to FIGS.
A rubber lining 35 having a predetermined thickness u formed of rubber having a higher hardness than the rubber layer 21 is joined to an inner peripheral surface of a through hole 26 penetrating the reinforcing plate 22 in the vertical direction. The space is filled with lead 30 and the through hole 2 is filled.
Since the upper and lower ends of the lead 6 are closed by cap plates 31 and 31, and the lead 30 is press-fitted into the laminated rubber 25 in a compressed state, as in the case of the first embodiment,
In manufacturing a laminated rubber bearing body containing a lead plug in which lead is press-filled into a cavity formed by vertical through holes, the pressure holding force of the inner peripheral surface of the through hole 26 with respect to the peripheral surface of the lead 30 is increased and the elastic deformation amount is increased. Can be reduced.

【0029】そのため、圧入充填された鉛30が図12
の(b)に示すようにゴム層21層内に必要以上に食い
込んで過度に蛇腹状に波を打った形状となる不都合な現
象を軽減又は無くすことができ、もって、圧入充填され
た鉛30の周囲を全体的により均一に積層ゴム25でし
っかりと圧迫することができる。こうして、図4〜図6
の第2実施例によっても、積層ゴム部25が水平方向の
せん断変形した時に鉛30がゴム部(ゴム層)21内へ
逃げていくことを軽減又は防止することにより、図13
の(b)、(c)、(d)に示すような現象の発生を軽
減又は防止することができる。すなわち、積層ゴム支承
体50により建物等を免震支持して水平方向の振動を減
衰させるときに、図13の(a)に示すような本来のば
ね性能及び減衰性能もしくはこれらに近い性能を常に維
持することができる積層ゴム支承体が提供される。
Therefore, the lead 30 which has been press-filled and filled is shown in FIG.
(B) can reduce or eliminate an undesired phenomenon in which the rubber layer 21 is unnecessarily bitten into the rubber layer 21 and becomes an excessively bellows-like shape. Can be firmly pressed by the laminated rubber 25 more uniformly as a whole. Thus, FIGS.
According to the second embodiment, the lead 30 is reduced or prevented from escaping into the rubber portion (rubber layer) 21 when the laminated rubber portion 25 is sheared in the horizontal direction.
(B), (c) and (d) can be reduced or prevented from occurring. That is, when the building or the like is seismically isolated by the laminated rubber bearing member 50 to attenuate horizontal vibrations, the original spring performance and damping performance as shown in FIG. A laminated rubber bearing that can be maintained is provided.

【0030】なお、以上の実施例では、積層ゴム支承体
50の中心部に1個の鉛プラグ30を圧入充填する場合
を例示したが、これは、積層ゴム支承体の内部であれ
ば、例えば4本の柱状の鉛を所定位置に配置するなど、
任意の位置に任意の数の鉛プラグを充填する構造にして
もよい。その場合は、鉛プラグの配置に応じた位置及び
数の開口及びキャッププレートが使用されることにな
る。また、以上の実施例では、上下のフランジ部材2
3、24に開口27、28及びキャッププレート31、
31を設ける場合を説明したが、これは、貫通孔26に
充填された鉛30を圧縮状態で圧入充填できる構造であ
れば、上側のフランジ部材23又は下側のフランジ部材
24のいずれか一方のみに、前記開口及びキャッププレ
ートと同様な構造を設ける構成としてもよい。これらの
構成によっても、前述の実施例の場合と同様の効果を得
ることができる。
In the above embodiment, the case where one lead plug 30 is press-fitted and filled in the center of the laminated rubber support 50 is exemplified. Such as placing four columnar leads in place,
A structure in which an arbitrary position is filled with an arbitrary number of lead plugs may be employed. In that case, openings and cap plates of a position and number corresponding to the arrangement of the lead plug will be used. In the above embodiment, the upper and lower flange members 2
3, 24, openings 27, 28 and cap plate 31,
The case in which the lead 31 is provided has been described. However, if the lead 30 filled in the through hole 26 can be press-fitted in a compressed state, only one of the upper flange member 23 and the lower flange member 24 can be used. Alternatively, a structure similar to the opening and the cap plate may be provided. With these configurations, the same effects as in the above-described embodiment can be obtained.

【0031】図7〜図10は以上説明した積層ゴム支承
体50の使用状況を例示する図であり、図7及び図8
は、積層ゴム支承体50を単独に使用し、1個づつで建
築物や装置、機器などの構造物60を基礎や床などの基
台70上に弾性支持する状態を示す模式的側面図及び模
式的平面図である。また、図9及び図10は、安定板8
0で複数(図示の例では4個)の積層ゴム支承体50の
上下端面を連結したものを複数段(例えば5〜20段)
にわたって組付けた多段免震ユニット100を使用し、
建築物や装置、機器などの構造物60を、該多段免震ユ
ニット100を介して、基礎や床などの基台70上に弾
性支持する状態を示す模式的側面図及び模式的平面図で
ある。
FIGS. 7 to 10 are views illustrating the usage of the laminated rubber bearing member 50 described above, and FIGS.
Is a schematic side view showing a state in which a laminated rubber bearing body 50 is used alone and a structure 60 such as a building, an apparatus, or an apparatus is elastically supported on a base 70 such as a foundation or a floor one by one; It is a schematic plan view. 9 and FIG.
A plurality of (for example, four in the illustrated example) laminated upper and lower end surfaces of the laminated rubber support 50 are connected in a plurality of stages (for example, 5 to 20 stages).
Using the multi-stage seismic isolation unit 100 assembled over
It is a schematic side view and a schematic plan view showing a state in which a structure 60 such as a building, an apparatus, or an apparatus is elastically supported on a base 70 such as a foundation or a floor via the multi-stage seismic isolation unit 100. .

【0032】[0032]

【発明の効果】以上の説明から明らかなごとく、請求項
1の発明によれば、ゴム層と補強板とを交互に積層して
一体化して成る積層ゴム支承体において、前記ゴム層及
び前記補強板を上下方向に貫通する貫通孔を形成すると
ともに、前記ゴム層の前記貫通孔の周囲の所定幅の領域
の硬度を該ゴム層の他の部分の硬度より高くし、前記貫
通孔内に鉛を充填し該貫通孔の上下端を閉塞する構成と
したので、上下方向の貫通孔から成る空洞に鉛を圧入充
填するに際し、該鉛の周囲を全体的に均一な圧迫力で積
層ゴムによりしっかりと圧迫することができ、それによ
って、支承体としての本来の良好なばね性能及び減衰性
能を維持することができる積層ゴム支承体が提供され
る。
As is apparent from the above description, according to the first aspect of the present invention, there is provided a laminated rubber bearing body in which a rubber layer and a reinforcing plate are alternately laminated and integrated with each other. A through hole is formed through the plate in the up-down direction, and the hardness of a region of the rubber layer having a predetermined width around the through hole is made higher than the hardness of other portions of the rubber layer, and lead is formed in the through hole. And the upper and lower ends of the through-holes are closed, so that when press-filling lead into the cavity formed by the vertical through-holes, the periphery of the lead is entirely firmly pressed by the laminated rubber with a uniform pressing force. Thus, there is provided a laminated rubber bearing body capable of maintaining the original good spring performance and damping performance of the bearing body.

【0033】請求項2〜4の発明によれば、上記請求項
1の構成に加えて、前記貫通孔が積層ゴム支承体の中心
に形成されている構成、前記貫通孔内に充填される鉛の
体積を該貫通孔の容積より大きくし、該鉛を該貫通孔内
に圧入する構成、あるいは、前記ゴム層の硬度の高い領
域は前記積層ゴム支承体のばね性能に実質的な影響を及
ぼさない範囲内である構成としたので、上下方向の貫通
孔から成る空洞に鉛を圧入充填するに際し、一層効率よ
く、該鉛の周囲を全体的に均一な圧迫力で積層ゴムによ
りしっかりと圧迫することができ、支承体としての本来
の良好なばね性能及び減衰性能を維持することができる
積層ゴム支承体が提供される。
According to the second to fourth aspects of the present invention, in addition to the configuration of the first aspect, the through hole is formed at the center of the laminated rubber bearing, and lead filled in the through hole is provided. The volume of the rubber layer is made larger than the volume of the through-hole, and the lead is pressed into the through-hole, or the region where the hardness of the rubber layer is high has a substantial effect on the spring performance of the laminated rubber support. When the lead is press-fitted into the cavity formed by the through holes in the vertical direction, the periphery of the lead is more firmly pressed by the laminated rubber with a uniform pressing force as a whole. The present invention provides a laminated rubber bearing that can maintain the original good spring performance and damping performance of the bearing.

【0034】請求項5の発明によれば、ゴム層と補強板
とを交互に積層して一体化して成る積層ゴム支承体にお
いて、前記ゴム層及び前記補強板を上下方向に貫通する
貫通孔を形成し、該貫通孔の内周面に前記ゴム層より高
い硬度のゴムで形成された所定厚さのゴムライニングを
接合し、前記ゴムライニングの内部空間に鉛を充填し、
前記貫通孔の上下端を閉塞する構成としたので、上下方
向の貫通孔から成る空洞に鉛を圧入充填するに際し、該
鉛の周囲を全体的に均一な圧迫力で積層ゴムによりしっ
かりと圧迫することができ、支承体としての本来の良好
なばね性能及び減衰性能を維持することができる積層ゴ
ム支承体が提供される。
According to the fifth aspect of the present invention, in a laminated rubber bearing body in which a rubber layer and a reinforcing plate are alternately laminated and integrated, a through hole vertically passing through the rubber layer and the reinforcing plate is formed. Forming, joining a rubber lining of a predetermined thickness formed of rubber having a higher hardness than the rubber layer to the inner peripheral surface of the through hole, filling the inner space of the rubber lining with lead,
Since the upper and lower ends of the through hole are closed, when the lead is press-filled into the cavity formed by the vertical through hole, the periphery of the lead is firmly pressed by the laminated rubber with a uniform pressing force as a whole. The present invention provides a laminated rubber bearing that can maintain the original good spring performance and damping performance of the bearing.

【0035】請求項6〜8の発明によれば、上記請求項
5の構成に加えて、前記貫通孔が積層ゴム支承体の中心
に形成されている構成、前記貫通孔内に充填される鉛の
体積を該貫通孔の容積より大きくし、該鉛を該貫通孔内
に圧入する構成、あるいは、前記ゴムライニングの厚さ
は前記積層ゴム支承体のばね性能に実質的な影響を及ぼ
さない厚さに選定される構成としたので、上下方向の貫
通孔から成る空洞に鉛を圧入充填するに際し、一層効率
よく、該鉛の周囲を全体的に均一な圧迫力で積層ゴムに
よりしっかりと圧迫することができ、支承体としての本
来の良好なばね性能及び減衰性能を維持することができ
る積層ゴム支承体が提供される。
According to the invention of claims 6 to 8, in addition to the structure of claim 5, the through hole is formed at the center of the laminated rubber support, and lead filled in the through hole is provided. The lead is pressed into the through-hole, or the thickness of the rubber lining does not substantially affect the spring performance of the laminated rubber bearing. When lead is press-filled into the cavity formed by the through holes in the vertical direction, the periphery of the lead is more firmly pressed by the laminated rubber with a uniform pressing force as a whole. The present invention provides a laminated rubber bearing that can maintain the original good spring performance and damping performance of the bearing.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明を適用した積層ゴム支承体の第1実施例
の模式的縦断面図である。
FIG. 1 is a schematic longitudinal sectional view of a first embodiment of a laminated rubber bearing body to which the present invention is applied.

【図2】図1中の線2−2から見た模式的平面図であ
る。
FIG. 2 is a schematic plan view seen from line 2-2 in FIG.

【図3】図1中のA部を拡大して示す部分縦断面図であ
る。
FIG. 3 is a partial longitudinal sectional view showing a portion A in FIG. 1 in an enlarged manner.

【図4】本発明を適用した積層ゴム支承体の第2実施例
の模式的縦断面図である。
FIG. 4 is a schematic longitudinal sectional view of a second embodiment of a laminated rubber bearing to which the present invention is applied.

【図5】図4中の線5−5から見た模式的平面図であ
る。
FIG. 5 is a schematic plan view taken along line 5-5 in FIG.

【図6】図4中のB部を拡大して示す部分縦断面図であ
る。
FIG. 6 is a partial longitudinal sectional view showing a portion B in FIG. 4 in an enlarged manner.

【図7】単独の積層ゴム支承体を使用して構造物を基台
上に弾性支持する状態を示す模式的側面図である。
FIG. 7 is a schematic side view showing a state in which a structure is elastically supported on a base using a single laminated rubber bearing.

【図8】図7の模式的平面図である。FIG. 8 is a schematic plan view of FIG.

【図9】安定板で複数の積層ゴム支承体の上下端面を連
結したものを複数段にわたって組付けた多段免震ユニッ
トを使用して構造物を基台上に弾性支持する状態を示す
模式的側面図である。
FIG. 9 is a schematic view showing a state in which a structure is elastically supported on a base by using a multi-stage seismic isolation unit in which a plurality of laminated rubber bearing bodies connected to upper and lower end surfaces by a stabilizer are assembled in a plurality of stages. It is a side view.

【図10】図9の模式的平面図である。FIG. 10 is a schematic plan view of FIG. 9;

【図11】従来の積層ゴム支承体の模式的縦断面図であ
る。
FIG. 11 is a schematic longitudinal sectional view of a conventional laminated rubber bearing.

【図12】図11の積層ゴム支承体において鉛を圧入充
填した時の状態を充填前と比較して示す部分縦断面図で
ある。
FIG. 12 is a partial longitudinal sectional view showing a state when lead is press-fitted and filled in the laminated rubber bearing body of FIG. 11 in comparison with a state before filling.

【図13】積層ゴム支承体が水平方向に変位する際のば
ね性能が良好でない各種の状態での履歴曲線(b)、
(c)、(d)を良好な状態での履歴曲線(a)と対比
して示すグラフである。
FIG. 13 shows hysteresis curves (b) in various states where the spring performance when the laminated rubber bearing body is displaced in the horizontal direction is not good;
It is a graph which shows (c) and (d) in contrast with the hysteresis curve (a) in a good state.

【符号の説明】[Explanation of symbols]

21 ゴム層 22 補強板 23 上側のフランジ部材 24 下側のフランジ部材 25 積層ゴム部 26 貫通孔 27 開口 28 開口 30 鉛 31 キャッププレート 32 ボルト 33 取り付け孔 35 ゴムライニング 50 積層ゴム支承体 21 Rubber Layer 22 Reinforcement Plate 23 Upper Flange Member 24 Lower Flange Member 25 Laminated Rubber Part 26 Through Hole 27 Opening 28 Opening 30 Lead 31 Cap Plate 32 Bolt 33 Mounting Hole 35 Rubber Lining 50 Laminated Rubber Bearing

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) F16F 7/00 F16F 7/00 B 15/08 15/08 B ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) F16F 7/00 F16F 7/00 B 15/08 15/08 B

Claims (8)

【特許請求の範囲】[Claims] 【請求項1】 ゴム層と補強板とを交互に積層して一
体化して成る積層ゴム支承体において、 前記ゴム層及び前記補強板を上下方向に貫通する貫通孔
を形成するとともに、前記ゴム層の前記貫通孔の周囲の
所定幅の領域の硬度を該ゴム層の他の部分の硬度より高
くし、前記貫通孔内に鉛を充填し該貫通孔の上下端を閉
塞することを特徴とする積層ゴム支承体。
1. A laminated rubber bearing body in which a rubber layer and a reinforcing plate are alternately laminated and integrated to form a through hole vertically penetrating the rubber layer and the reinforcing plate. The hardness of a region of a predetermined width around the through hole is higher than the hardness of the other portion of the rubber layer, and the upper and lower ends of the through hole are closed by filling the through hole with lead. Laminated rubber bearing.
【請求項2】 前記貫通孔が積層ゴム支承体の中心に
形成されていることを特徴とする請求項1に記載の積層
ゴム支承体。
2. The laminated rubber bearing according to claim 1, wherein the through hole is formed at the center of the laminated rubber bearing.
【請求項3】 前記貫通孔内に充填される鉛の体積を
該貫通孔の容積より大きくし、該鉛を該貫通孔内に圧入
することを特徴とする請求項1又は2に記載の積層ゴム
支承体。
3. The lamination according to claim 1, wherein the volume of lead filled in the through hole is made larger than the volume of the through hole, and the lead is pressed into the through hole. Rubber bearing.
【請求項4】 前記ゴム層の硬度の高い領域は前記積
層ゴム支承体のばね性能に実質的な影響を及ぼさない範
囲内であることを特徴とする請求項1〜3のいずれかに
に記載の積層ゴム支承体。
4. The rubber material according to claim 1, wherein the high hardness region of the rubber layer is within a range that does not substantially affect the spring performance of the laminated rubber bearing. Laminated rubber bearing.
【請求項5】 ゴム層と補強板とを交互に積層して一
体化して成る積層ゴム支承体において、 前記ゴム層及び前記補強板を上下方向に貫通する貫通孔
を形成し、該貫通孔の内周面に前記ゴム層より高い硬度
のゴムで形成された所定厚さのゴムライニングを接合
し、前記ゴムライニングの内部空間に鉛を充填し、前記
貫通孔の上下端を閉塞することを特徴とする積層ゴム支
承体。
5. A laminated rubber bearing body in which a rubber layer and a reinforcing plate are alternately laminated and integrated to form a through hole vertically penetrating the rubber layer and the reinforcing plate. A rubber lining having a predetermined thickness formed of rubber having a hardness higher than that of the rubber layer is joined to the inner peripheral surface, and an inner space of the rubber lining is filled with lead, and upper and lower ends of the through hole are closed. Laminated rubber bearing.
【請求項6】 前記貫通孔が積層ゴム支承体の中心に
形成されていることを特徴とする請求項5に記載の積層
ゴム支承体。
6. The laminated rubber bearing according to claim 5, wherein the through hole is formed at the center of the laminated rubber bearing.
【請求項7】 前記貫通孔内に充填される鉛の体積を
該貫通孔の容積より大きくし、該鉛を該貫通孔内に圧入
することを特徴とする請求項5又は6に記載の積層ゴム
支承体。
7. The lamination according to claim 5, wherein the volume of lead filled in the through hole is made larger than the volume of the through hole, and the lead is pressed into the through hole. Rubber bearing.
【請求項8】 前記ゴムライニングの厚さは前記積層
ゴム支承体のばね性能に実質的な影響を及ぼさない厚さ
に選定されることを特徴とする請求項5〜7のいずれか
にに記載の積層ゴム支承体。
8. The method according to claim 5, wherein the thickness of the rubber lining is selected so as not to substantially affect the spring performance of the laminated rubber bearing. Laminated rubber bearing.
JP17771299A 1999-06-24 1999-06-24 Laminated rubber bearing body Pending JP2001012545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17771299A JP2001012545A (en) 1999-06-24 1999-06-24 Laminated rubber bearing body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17771299A JP2001012545A (en) 1999-06-24 1999-06-24 Laminated rubber bearing body

Publications (1)

Publication Number Publication Date
JP2001012545A true JP2001012545A (en) 2001-01-16

Family

ID=16035801

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17771299A Pending JP2001012545A (en) 1999-06-24 1999-06-24 Laminated rubber bearing body

Country Status (1)

Country Link
JP (1) JP2001012545A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001343040A (en) * 2000-06-01 2001-12-14 Oiles Ind Co Ltd Manufacturing method of laminated rubber supporting body with lead column and building structure base- isolated with laminated rubber supporting body produced by the same manufacturing method
KR100408374B1 (en) * 2001-02-07 2003-12-06 제이.알 도시 환경산업(주) Lead-Rubber Bearing Mold
JP2010096290A (en) * 2008-10-17 2010-04-30 Oiles Ind Co Ltd Laminated rubber bearing body
JP2010180959A (en) * 2009-02-05 2010-08-19 Bridgestone Corp Base isolation device
JP2010255776A (en) * 2009-04-27 2010-11-11 Bridgestone Corp Base isolation structure
CN102605865A (en) * 2011-12-21 2012-07-25 同济大学 Extra-high-voltage electrical equipment shock-insulating supporting seat with adjustable rigidity and damping
CN107700515A (en) * 2017-09-15 2018-02-16 赵云年 Building pile foundation

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001343040A (en) * 2000-06-01 2001-12-14 Oiles Ind Co Ltd Manufacturing method of laminated rubber supporting body with lead column and building structure base- isolated with laminated rubber supporting body produced by the same manufacturing method
JP4524862B2 (en) * 2000-06-01 2010-08-18 オイレス工業株式会社 Manufacturing method of laminated rubber bearing body with lead strut and structure supported by seismic isolation with laminated rubber bearing body with lead strut manufactured by this manufacturing method
KR100408374B1 (en) * 2001-02-07 2003-12-06 제이.알 도시 환경산업(주) Lead-Rubber Bearing Mold
JP2010096290A (en) * 2008-10-17 2010-04-30 Oiles Ind Co Ltd Laminated rubber bearing body
JP2010180959A (en) * 2009-02-05 2010-08-19 Bridgestone Corp Base isolation device
JP2010255776A (en) * 2009-04-27 2010-11-11 Bridgestone Corp Base isolation structure
CN102605865A (en) * 2011-12-21 2012-07-25 同济大学 Extra-high-voltage electrical equipment shock-insulating supporting seat with adjustable rigidity and damping
CN107700515A (en) * 2017-09-15 2018-02-16 赵云年 Building pile foundation
CN107700515B (en) * 2017-09-15 2019-08-06 杭州绿城都会建筑设计有限公司 Building pile foundation

Similar Documents

Publication Publication Date Title
US5761856A (en) Vibration isolation apparatus
US10619700B2 (en) Seismic isolation apparatus
JP2001012545A (en) Laminated rubber bearing body
JP2006514181A (en) A bearing structure to reduce the transmission of shock and / or vibration forces, especially in buildings exposed to earthquake loads
TWI672447B (en) Base isolation supporting device
JP3124502B2 (en) Structure of leaded rubber bearing
JP2001027283A (en) Laminated rubber support body
JP2002195327A (en) Laminated rubber pivotally supporting body
JP3114624B2 (en) Seismic isolation device
JP2001140978A (en) Laminated rubber support body
JP2009115176A (en) Laminated rubber bearing body
JP3410172B2 (en) Lead encapsulated laminated rubber bearing
JP4868435B2 (en) Laminated rubber body with lead plug
JP2000110878A (en) Manufacture of laminated rubber support body
JP5136622B2 (en) Laminated rubber body with lead plug
JP2713100B2 (en) 3D seismic isolation device
JP2013231478A (en) Vibration control support structure
JPH10168822A (en) Structural elastic supporting body and its manufacture
JPH0893850A (en) Vibration isolating rubber
JPH0860746A (en) Lead-sealed laminated rubber
JPH10299283A (en) Reinforcing structure of structural body and vibration damping device for brace
JP2002155992A (en) Laminated rubber load device
JP2575204Y2 (en) Seismic isolation elastic rubber bearing for structures
JP2983946B2 (en) Restoration / attenuation device
JP2001090777A (en) Base isolation device