JP3651236B2 - Manufacturing method of rubber bearing - Google Patents

Manufacturing method of rubber bearing Download PDF

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Publication number
JP3651236B2
JP3651236B2 JP5810398A JP5810398A JP3651236B2 JP 3651236 B2 JP3651236 B2 JP 3651236B2 JP 5810398 A JP5810398 A JP 5810398A JP 5810398 A JP5810398 A JP 5810398A JP 3651236 B2 JP3651236 B2 JP 3651236B2
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Japan
Prior art keywords
rubber
mold
unvulcanized
plate
thin
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JP5810398A
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Japanese (ja)
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JPH11256517A (en
Inventor
郁夫 中西
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Sumitomo Riko Co Ltd
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Sumitomo Riko Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、橋梁、建築物等に用いられるゴム支承体の製造方法に関する。
【0002】
【従来の技術】
この種のゴム支承体としては、例えば図1に示すようなものが知られている。このゴム支承体10は、通常400mm×400mm×50mm以上の大きさの直方体厚板形状であり、互いに対向しかつ平行に配置された上側表面中央に固定用凹部11aを有する金属製厚板の上部取付プレート11と、下側表面中央に固定用凹部13aを有する金属製厚板の下部取付プレート13とを設けている。上部取付プレート11と下部取付プレート13との間には、金属製薄板からなる複数の中間プレート12が互いに平行かつ略等間隔で配置されており、両取付プレート11,13の間にはゴムが充填されてゴム層14をなしており、両取付プレートの表面には取付プレート11,13の腐食防止のためのゴム薄板15,18が設けられている。
【0003】
このゴム支承体10は、図2に示すように、下側取付プレート13が橋脚M側に取り付けられた金属製厚板のベースプレート41上に載置され、固定用凹部13aがベースプレート41中央に設けた剪断キー42に嵌め合わされている。また、上側取付プレート11上側表面には、橋桁N側に取り付けられた金属製厚板のソールプレート43が載置され、固定用凹部11aにはソールプレート43中央に設けた剪断キー44が嵌め合わされている。これにより、ゴム支承体10は、橋脚Mと橋桁Nとの間に介装されて、温度変化による橋桁Nの伸縮を吸収するとともに、橋桁Nから伝えられる振動を緩和させるようになっている。
【0004】
従来、このゴム支承体10の製造方法としては、図4に示すように、まず、互いに対向しかつ平行に配置された上部取付プレート11と下部取付プレート13との間に、中間プレート12と未加硫ゴムであるゴム板17とを交互に積層し、かつ両取付プレート11,13の表面の固定用凹部以外の部分に未加硫のゴム薄板15a,18aを接着することにより、未加硫ゴム積層品(成形品)10aが形成される。この未加硫ゴム積層品10aを、下型1上にその挿入凸部2に下部取付プレート13の固定用凹部13aを嵌め合わせて載置し、下型1に立設した中型2によってその周囲をわずかの隙間を介して囲み、さらに上型4をその挿入凸部5を上部取付プレート11の固定用凹部11aに嵌め合わせて上部取付プレート11上に重ね合わせることにより、上型4及び下型1から未加硫ゴム積層品10aに所定の押圧力が加えられる。その後、未加硫ゴム積層品10aに押圧力が加えられた状態で、金型側から未加硫ゴム積層品10aに熱が加えられることにより、未加硫のゴム板17及びゴム薄板15a,18aの加硫成形が行われ、ゴム支承体10が形成される。
【0005】
【発明が解決しようとする課題】
ところで、上記ゴム支承体10は、加硫時に、金型によって押圧力が加えられるため、特に上型4及び下型1と、上部及び下部取付プレート11,13の表面のゴム薄板15a,18aとがくっついて容易には剥がれ難くなり、しかもゴム支承体10が大型の重量物であるため、金型からの脱型が非常に困難になる。特に1000mm×1000mm×300mm以上の大型のものでは、脱型作業に非常に危険が伴うことになる。これに対し、上型4及び下型1の表面に離型剤を塗布することができるが、離型剤を用いることにより鉄板とゴムの接着性に悪影響を与えるという問題がある。
【0006】
また、上型4及び下型1の端部からへら等で抉りながら成形品を脱型させる方法も行われているが、これによれば、成形品や金型に傷が付きやすく、成形品の品質の低下が問題となるとともに、脱型作業に時間を要しそのために金型が冷却して加硫作業の効率が低下するという問題がある。さらに、金型の表面にテフロン加工を施したり、テフロン等のフィルムやシートを貼り付ける方法もあるが、これらの保護による耐久性も十分ではなくまたコストも高価になる。
【0007】
本発明は上記した問題を解決しようとするもので、ゴム支承体の加硫成形後の金型からの脱型を、ゴム支承体表面及び金型表面に傷を付けることなくかつ短時間に容易に行うことができるゴム支承体の製造方法を提供することを目的とする。
【0008】
【課題を解決するための手段及び発明の効果】
上記目的を達成するために、上記請求項1に記載された発明の構成上の特徴は、互いに対向しかつ平行に配置された金属製厚板である上部取付プレート及び下部取付プレートと、上部及び下部取付プレートの間に上部及び下部取付プレートに平行に配置された金属製薄板である複数の中間プレートと、上部及び下部取付プレート間に充填された未加硫ゴムと、上部及び下部取付プレートの表面に貼り付けられた未加硫薄肉ゴムとを設けてなる未加硫ゴム成形品を、互いに対向しかつ平行な平面を有する上型及び下型により挟持すると共に、未加硫ゴム成形品の側面をわずかに隙間を設けて枠形状の中型で囲い、上型及び下型により未加硫ゴム成形品に所定の押圧力を加えた状態で未加硫ゴム及び未加硫薄肉ゴムを加硫成形させるゴム支承体の製造方法において、上型及び下型と、上部及び下部取付プレートの表面に貼り付けられた未加硫薄肉ゴムとの間にそれぞれ可撓性の金属薄板を介在させて加硫成形を行うようにしたことにある。なお、可撓性の金属薄板としては、アルミニウム、ステンレス、鉄等が用いられる。
【0009】
上記のように請求項1に係る発明を構成したことにより、上型及び下型と金属薄板とはくっつくことがなく、また金属薄板は可撓性があるため、四隅の一端部よりめくるようにすれば、上部及び下部取付プレートに接着されたゴム薄板から容易に剥離させることができるので、金型からの成形品の脱型を短時間で容易に行うことができる。
【0010】
その結果、上記請求項1の発明によれば、ゴム支承体及び上型下型のいずれにも傷を付けることがないので、ゴム支承体の品質を良好に維持できると共に金型の寿命を長くすることができる。また、脱型を短時間で容易に行うことができるので、加硫成形の作業性が高められると共に、金型の温度低下も抑制できるためさらに作業性を高めることができる。また、金属薄板は安価であり、製造コストの上昇もほとんど無い。
【0011】
また、上記請求項2に記載された発明の構成上の特徴は、前記請求項1に記載のゴム支承体の製造方法において、上型と未加硫薄肉ゴムとの間に介在させる金属薄板が、少なくとも中型の上端面上まで延設されていることにある。
上記のように請求項2に係る発明を構成したことにより、上記請求項1の効果に加えて、中型に対する金属薄板の位置決めを容易にかつ正確に行うことができ、上型と中型の型合わせ時に、上型と金属薄板との不適性な重なりを防止できる。
【0012】
【発明の実施の形態】
以下、本発明の実施形態について図面を用いて説明すると、図3は同実施形態に係る図1に示したゴム支承体10の製造方法を断面図により概略的に示したものである。
まず、図3に示すように、上部取付プレート11と下部取付プレート13との間に、中間プレート12及び未加硫ゴムからなるゴム板17が交互に積層され、さらに上部取付プレート11上側表面及び下部取付プレート13下側表面の固定用凹部11a,13aを除いた平面にそれぞれ未加硫のゴム薄板15a,18aが接着剤で貼り付けられることにより、未加硫ゴム積層品(成形品)10aが形成される。なお、各未加硫のゴム15a,18a,17の形成については、射出成形により同時に行うこともできる。
【0013】
未加硫ゴム積層品10aの加硫成形を行うために用いられる金型30は、図3に示すように、それぞれに分割可能な上型31、中型33及び下型35を備えている。上型31は略四角形の金属製の偏平箱型であり、その凹部31a内には平板状で下側表面中央に下方に突出した挿入凸部32aを有する上型スペーサ32が装着固定されている。挿入凸部32aは、上記上部取付プレート11の固定用凹部11aと対応した位置に設けられている。なお、上型スペーサ32は製品寸法の違いを調節するために上型31と一体で用いられるものである。
【0014】
下型35は略四角形の金属製の偏平箱型である。下型35の凹部35aには、四角形の金属製枠体である中型33が、その下側部分が凹部35aの側壁に密着した状態で載置されている。さらに、中型33と同一高さの四角形の枠体である中型スペーサ34が、中型33内側面に密着して配設されている。そして、凹部35aの底面上には、中型スペーサ34の内側面に密着して板状の下型スペーサ36が載置されている。下型スペーサ36は、上側表面中央に突出した上記下部取付プレート13の固定用凹部13aと対応した挿入凸部36aを有している。なお、中型スペーサ34及び下型スペーサ36も、上型スペーサ32と同様の機能を果たすものである。下型スペーサ36の挿入凸部36aを除く表面には、図3に示すように、可撓性の金属薄板21が敷設されている。金属薄板の材質としては、ステンレス、鉄、アルミニウム等が用いられ、厚さは0.6〜1.2mm程度が可撓性を確保する上で好ましい。
【0015】
そして、中型スペーサ34と下型スペーサ36によって囲まれた内部に、上記未加硫ゴム積層品10aが、下部取付プレート13の固定用凹部13aを下型スペーサ36の挿入凸部36aを嵌め合わせて装着される。この未加硫ゴム積層品10aの上面側にも、図3に示すように、固定用凹部11aを除いて、可撓性の金属薄板22が配設されている。金属薄板22は、中型33の上端面上まで延設されており、そのため、中型33に対する金属薄板22の位置決めを容易にかつ正確に行うことができ、上型31と中型33の型合わせ時に、上型31と金属薄板22との不適性な重なりを防止できる。
【0016】
未加硫ゴム積層品10aを下型35及び中型33内部に装着した後、上型31が、上型スペーサ32の挿入凸部32aを上部取付プレート11の固定用凹部11aに嵌め合わせて型合わせされ、上型31により未加硫ゴム積層品10aに押圧力が加えられる。そして、金型30内部において、未加硫ゴム積層品10aが上型31及び下型35により押圧された状態で、金型30を加熱することにより、金型30を通して未加硫ゴム積層品10aに熱が伝達され、加硫成形が行われる。これにより、ゴム薄板15a,18a及びゴム板17は加硫成形されてゴム層14及びゴム薄板15,18を有するゴム支承体10が形成される。
【0017】
加硫成形後に、ゴム支承体10は金型30から取り出されるが、上型31及び下型35と金属薄板21,22とはくっつくことがなく、また金属薄板21,22は可撓性があるので、四隅の一端部よりめくるようにすれば、上部及び下部取付プレート11,13に加硫成形されたゴム薄板15,18から容易に剥離させることができるので、金型30からのゴム支承体10成形品の脱型を容易に行うことができる。
【0018】
以上に説明したように、本実施形態においては、金型30からの成形品の脱型を容易に行うことができるため、ゴム支承体10及び金型30のいずれにも傷を付けることがないので、製品の品質を維持できると共に金型30の寿命を長くすることができる。また、脱型を短時間に容易に行うことができるので、作業性が高められると共に、金型30の温度低下も抑制できるためさらに作業性を高めることができる。また、金属薄板21,22は安価であり、製造コストの上昇もほとんど無い。
【0019】
なお、上記実施形態において示したゴム支承体10の具体的構造については、これに限るものでない。
【図面の簡単な説明】
【図1】本発明の一実施形態に係るゴム支承体を概略的に示す断面図である。
【図2】同ゴム支承体を橋梁に取り付けた状態を概略的に示す部分断面図である。
【図3】未加硫ゴム積層品を金型に装着する過程を示す断面図である。
【図4】従来例である未加硫ゴム積層品を金型に装着する過程を示す断面図である。
【符号の説明】
10…ゴム支承体、10a…未加硫ゴム積層品(成形品)、11…上部取付プレート、11a…固定用凹部、12…中間プレート、13…下部取付プレート、13a…固定用凹部、14…ゴム層、15…ゴム薄板、17…ゴム板、18…ゴム薄板、21,22…金属薄板、30…金型、31…上型、32…上型スペーサ、32a…挿入凸部、33…中型、34…中型スペーサ、35…下型、35a…凹部、36…下型スペーサ、36a…挿入凸部。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for manufacturing a rubber bearing body used for bridges, buildings, and the like.
[0002]
[Prior art]
As this type of rubber bearing, for example, the one shown in FIG. 1 is known. This rubber support 10 is a rectangular parallelepiped thick plate shape usually having a size of 400 mm × 400 mm × 50 mm or more, and is an upper portion of a metal thick plate having a fixing recess 11 a at the center of the upper surface facing each other and in parallel. A mounting plate 11 and a lower mounting plate 13 made of a thick metal plate having a fixing recess 13a at the center of the lower surface are provided. Between the upper mounting plate 11 and the lower mounting plate 13, a plurality of intermediate plates 12 made of metal thin plates are arranged in parallel with each other at substantially equal intervals, and rubber is interposed between the mounting plates 11 and 13. Filled to form a rubber layer 14, rubber plates 15 and 18 for preventing corrosion of the mounting plates 11 and 13 are provided on the surfaces of both mounting plates.
[0003]
As shown in FIG. 2, the rubber bearing 10 is placed on a metal thick plate base plate 41 with a lower attachment plate 13 attached to the pier M side, and a fixing recess 13 a is provided at the center of the base plate 41. The shear key 42 is fitted. Further, a metal thick plate sole plate 43 attached to the bridge girder N side is placed on the upper surface of the upper attachment plate 11, and a shearing key 44 provided in the center of the sole plate 43 is fitted into the fixing recess 11a. ing. Thereby, the rubber bearing body 10 is interposed between the bridge pier M and the bridge girder N so as to absorb the expansion and contraction of the bridge girder N due to the temperature change and to relieve the vibration transmitted from the bridge girder N.
[0004]
Conventionally, as shown in FIG. 4, a manufacturing method of this rubber bearing body 10 is as follows. First, an intermediate plate 12 and an unmounted plate are disposed between an upper mounting plate 11 and a lower mounting plate 13 that are opposed to and parallel to each other. The rubber plates 17 which are vulcanized rubbers are alternately laminated, and the unvulcanized rubber thin plates 15a and 18a are bonded to the portions other than the fixing recesses on the surfaces of the mounting plates 11 and 13, thereby unvulcanized. A rubber laminated product (molded product) 10a is formed. The unvulcanized rubber laminate 10a is placed on the lower mold 1 with the insertion convex part 2 fitted with the fixing concave part 13a of the lower mounting plate 13, and the middle mold 2 standing on the lower mold 1 surrounds it. And the upper mold 4 and the lower mold are overlapped on the upper mounting plate 11 by fitting the insertion convex portion 5 to the fixing concave portion 11a of the upper mounting plate 11. A predetermined pressing force is applied from 1 to the unvulcanized rubber laminate 10a. Thereafter, heat is applied to the unvulcanized rubber laminate 10a from the mold side in a state in which a pressing force is applied to the unvulcanized rubber laminate 10a, whereby an unvulcanized rubber plate 17 and a rubber thin plate 15a, The rubber support 10 is formed by vulcanization molding of 18a.
[0005]
[Problems to be solved by the invention]
By the way, since the rubber bearing 10 is pressed by a mold during vulcanization, the upper mold 4 and the lower mold 1, and the rubber thin plates 15a and 18a on the surfaces of the upper and lower mounting plates 11 and 13, in particular, Since the rubber support 10 is a large and heavy object, it is very difficult to remove it from the mold. In particular, in the case of a large size of 1000 mm × 1000 mm × 300 mm or more, the demolding work is very dangerous. On the other hand, a release agent can be applied to the surfaces of the upper mold 4 and the lower mold 1, but there is a problem that the adhesiveness between the iron plate and the rubber is adversely affected by using the release agent.
[0006]
In addition, a method of removing a molded product from the ends of the upper mold 4 and the lower mold 1 with a spatula or the like is also performed, but according to this method, the molded product or the mold is easily damaged, and the molded product is In addition, there is a problem that the quality of the mold is deteriorated, and it takes time for the demolding operation, and therefore the mold is cooled and the efficiency of the vulcanization operation is decreased. Furthermore, there is a method of applying Teflon processing to the surface of the mold or attaching a film or sheet of Teflon or the like, but the durability due to these protections is not sufficient, and the cost becomes expensive.
[0007]
The present invention is intended to solve the above-mentioned problems, and it is easy to remove the rubber support from the mold after vulcanization molding without damaging the surface of the rubber support and the mold in a short time. It is an object of the present invention to provide a method for producing a rubber bearing body that can be used in the present invention.
[0008]
[Means for Solving the Problems and Effects of the Invention]
In order to achieve the above object, the structural features of the invention described in claim 1 include an upper mounting plate and a lower mounting plate, which are metal thick plates arranged opposite to each other in parallel, an upper portion, A plurality of intermediate plates, which are metal thin plates arranged in parallel with the upper and lower mounting plates between the lower mounting plates, unvulcanized rubber filled between the upper and lower mounting plates, and upper and lower mounting plates An unvulcanized rubber molded product provided with an unvulcanized thin-walled rubber affixed to the surface is sandwiched between an upper mold and a lower mold that are opposed to each other and have parallel planes. The side is surrounded by a frame-shaped middle mold with a slight gap, and the unvulcanized rubber and unvulcanized thin rubber are vulcanized with a predetermined pressing force applied to the unvulcanized rubber molded product by the upper mold and lower mold. Of rubber bearings to be molded In the manufacturing method, vulcanization molding is performed by interposing a flexible metal thin plate between the upper mold and the lower mold and the unvulcanized thin rubber adhered to the surfaces of the upper and lower mounting plates. It is to have done. As the flexible metal thin plate, aluminum, stainless steel, iron, or the like is used.
[0009]
By configuring the invention according to claim 1 as described above, the upper and lower molds and the metal thin plate do not stick to each other, and the metal thin plate is flexible so that it is turned from one end of the four corners. Then, since it can peel easily from the rubber thin plate adhere | attached on the upper part and the lower attachment plate, the molded product from a metal mold | die can be easily demolded in a short time.
[0010]
As a result, according to the invention of claim 1, since neither the rubber bearing body nor the upper mold lower mold is damaged, the quality of the rubber bearing body can be maintained well and the life of the mold is extended. can do. Further, since the demolding can be easily performed in a short time, the workability of vulcanization molding can be improved and the temperature drop of the mold can be suppressed, so that the workability can be further improved. Moreover, a metal thin plate is cheap and there is almost no increase in manufacturing cost.
[0011]
Further, the structural feature of the invention described in claim 2 is that in the method of manufacturing a rubber bearing according to claim 1, a metal thin plate interposed between the upper mold and the unvulcanized thin rubber is provided. In other words, it extends to at least the upper end surface of the middle mold.
By constructing the invention according to claim 2 as described above, in addition to the effect of claim 1, the positioning of the thin metal plate with respect to the middle mold can be easily and accurately performed. Sometimes, an inappropriate overlap between the upper mold and the metal thin plate can be prevented.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 3 schematically shows a manufacturing method of the rubber bearing body 10 shown in FIG.
First, as shown in FIG. 3, intermediate plates 12 and rubber plates 17 made of unvulcanized rubber are alternately laminated between the upper mounting plate 11 and the lower mounting plate 13, and further the upper surface of the upper mounting plate 11 and The unvulcanized rubber thin plates 15a and 18a are respectively bonded to the plane except for the fixing recesses 11a and 13a on the lower surface of the lower mounting plate 13 with an adhesive, whereby an unvulcanized rubber laminated product (molded product) 10a. Is formed. The unvulcanized rubbers 15a, 18a and 17 can be formed simultaneously by injection molding.
[0013]
As shown in FIG. 3, the mold 30 used for vulcanization molding of the unvulcanized rubber laminate 10 a includes an upper mold 31, an intermediate mold 33, and a lower mold 35 that can be divided. The upper die 31 is a substantially rectangular metal flat box shape, and an upper die spacer 32 having an insertion convex portion 32a projecting downward at the center of the lower surface is mounted and fixed in the concave portion 31a. . The insertion convex portion 32 a is provided at a position corresponding to the fixing concave portion 11 a of the upper mounting plate 11. The upper mold spacer 32 is used integrally with the upper mold 31 in order to adjust the difference in product dimensions.
[0014]
The lower die 35 is a substantially rectangular flat box shape made of metal. In the concave portion 35a of the lower die 35, the middle die 33, which is a rectangular metal frame, is placed with its lower portion in close contact with the side wall of the concave portion 35a. Further, an intermediate spacer 34 that is a rectangular frame having the same height as the intermediate die 33 is disposed in close contact with the inner surface of the intermediate die 33. On the bottom surface of the recess 35a, a plate-like lower mold spacer 36 is placed in close contact with the inner surface of the middle mold spacer 34. The lower mold spacer 36 has an insertion convex portion 36a corresponding to the fixing concave portion 13a of the lower mounting plate 13 protruding to the center of the upper surface. The middle spacer 34 and the lower spacer 36 also perform the same function as the upper spacer 32. As shown in FIG. 3, a flexible metal thin plate 21 is laid on the surface of the lower mold spacer 36 excluding the insertion convex portion 36a. As a material of the metal thin plate, stainless steel, iron, aluminum or the like is used, and a thickness of about 0.6 to 1.2 mm is preferable for ensuring flexibility.
[0015]
Then, the unvulcanized rubber laminate 10a fits the fixing concave portion 13a of the lower mounting plate 13 and the insertion convex portion 36a of the lower mold spacer 36 inside the space surrounded by the middle spacer 34 and the lower spacer 36. Installed. As shown in FIG. 3, a flexible metal thin plate 22 is disposed on the upper surface side of the unvulcanized rubber laminate 10a except for the fixing recess 11a. The thin metal plate 22 extends to the upper end surface of the middle die 33, and therefore, the thin metal plate 22 can be easily and accurately positioned with respect to the middle die 33. When the upper die 31 and the middle die 33 are aligned, Inappropriate overlap between the upper mold 31 and the metal thin plate 22 can be prevented.
[0016]
After the unvulcanized rubber laminate 10a is mounted inside the lower mold 35 and the middle mold 33, the upper mold 31 fits the insertion convex part 32a of the upper mold spacer 32 into the fixing concave part 11a of the upper mounting plate 11 and performs mold matching. Then, a pressing force is applied to the unvulcanized rubber laminate 10 a by the upper mold 31. Then, in the mold 30, the unvulcanized rubber laminate 10 a is heated by the upper mold 31 and the lower mold 35 while the mold 30 is heated, whereby the unvulcanized rubber laminate 10 a is passed through the mold 30. Heat is transferred to the vulcanization molding. As a result, the rubber thin plates 15a and 18a and the rubber plate 17 are vulcanized to form the rubber support 10 having the rubber layer 14 and the rubber thin plates 15 and 18.
[0017]
After the vulcanization molding, the rubber support 10 is taken out from the mold 30, but the upper mold 31 and the lower mold 35 and the metal thin plates 21 and 22 are not adhered to each other, and the metal thin plates 21 and 22 are flexible. Therefore, if it is turned from one end of the four corners, it can be easily peeled off from the rubber thin plates 15, 18 formed by vulcanization on the upper and lower mounting plates 11, 13. Demolding of 10 molded products can be performed easily.
[0018]
As described above, in this embodiment, since the molded product can be easily removed from the mold 30, neither the rubber support 10 nor the mold 30 is damaged. Therefore, the quality of the product can be maintained and the life of the mold 30 can be extended. Moreover, since the mold removal can be easily performed in a short time, the workability is improved and the temperature drop of the mold 30 can be suppressed, so that the workability can be further improved. Moreover, the metal thin plates 21 and 22 are inexpensive and there is almost no increase in manufacturing cost.
[0019]
In addition, about the specific structure of the rubber bearing body 10 shown in the said embodiment, it does not restrict to this.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view schematically showing a rubber bearing body according to an embodiment of the present invention.
FIG. 2 is a partial cross-sectional view schematically showing a state where the rubber support is attached to a bridge.
FIG. 3 is a cross-sectional view showing a process of mounting an unvulcanized rubber laminate on a mold.
FIG. 4 is a cross-sectional view showing a process of mounting a conventional unvulcanized rubber laminate on a mold.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Rubber bearing body, 10a ... Unvulcanized rubber laminated product (molded article), 11 ... Upper mounting plate, 11a ... Recessing fixing part, 12 ... Intermediate plate, 13 ... Lower mounting plate, 13a ... Recessing fixing part, 14 ... Rubber layer, 15 ... rubber thin plate, 17 ... rubber plate, 18 ... rubber thin plate, 21, 22 ... metal thin plate, 30 ... mold, 31 ... upper mold, 32 ... upper mold spacer, 32a ... insertion convex part, 33 ... medium mold , 34... Medium spacer, 35. Lower mold, 35 a. Recess, 36. Lower spacer, 36 a.

Claims (2)

互いに対向しかつ平行に配置された金属製厚板である上部取付プレート及び下部取付プレートと、該上部及び下部取付プレートの間に該上部及び下部取付プレートに平行に配置された金属製薄板である複数の中間プレートと、該上部及び下部取付プレート間に充填された未加硫ゴムと、該上部及び下部取付プレートの表面に貼り付けられた未加硫薄肉ゴムとを設けてなる未加硫ゴム成形品を、互いに対向しかつ平行な平面を有する上型及び下型により挟持すると共に、前記未加硫ゴム成形品の側面をわずかに隙間を設けて枠形状の中型で囲い、前記上型及び下型により前記未加硫ゴム成形品に所定の押圧力を加えた状態で前記未加硫ゴム及び未加硫薄肉ゴムを加硫成形させるゴム支承体の製造方法において、
前記上型及び下型と、該上部及び下部取付プレートの表面に貼り付けられた未加硫薄肉ゴムとの間にそれぞれ可撓性の金属薄板を介在させて加硫成形を行うようにしたことを特徴とするゴム支承体の製造方法。
An upper mounting plate and a lower mounting plate, which are metal thick plates facing each other and parallel to each other, and a thin metal plate disposed between the upper and lower mounting plates in parallel to the upper and lower mounting plates An unvulcanized rubber comprising a plurality of intermediate plates, an unvulcanized rubber filled between the upper and lower mounting plates, and an unvulcanized thin-walled rubber adhered to the surfaces of the upper and lower mounting plates The molded product is sandwiched between an upper mold and a lower mold that have mutually parallel and parallel planes, and a side surface of the unvulcanized rubber molded product is surrounded by a frame-shaped middle mold with a slight gap, and the upper mold and In a method for producing a rubber bearing body in which the unvulcanized rubber and the unvulcanized thin rubber are vulcanized and molded with a predetermined pressing force applied to the unvulcanized rubber molded product by a lower mold,
Vulcanization molding was performed by interposing flexible metal thin plates between the upper mold and the lower mold and unvulcanized thin rubber bonded to the surfaces of the upper and lower mounting plates. A method for producing a rubber bearing, characterized by
前記請求項1に記載のゴム支承体の製造方法において、前記上型と前記未加硫薄肉ゴムとの間に介在させる前記金属薄板が、少なくとも前記中型の上端面上まで延設されていることを特徴とするゴム支承体の製造方法。2. The method of manufacturing a rubber bearing according to claim 1, wherein the metal thin plate interposed between the upper mold and the unvulcanized thin rubber is extended to at least the upper end surface of the middle mold. A method for producing a rubber bearing, characterized by
JP5810398A 1998-03-10 1998-03-10 Manufacturing method of rubber bearing Expired - Fee Related JP3651236B2 (en)

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