JPH08197641A - Production of inflation sealing member - Google Patents

Production of inflation sealing member

Info

Publication number
JPH08197641A
JPH08197641A JP925695A JP925695A JPH08197641A JP H08197641 A JPH08197641 A JP H08197641A JP 925695 A JP925695 A JP 925695A JP 925695 A JP925695 A JP 925695A JP H08197641 A JPH08197641 A JP H08197641A
Authority
JP
Japan
Prior art keywords
rubber
seal member
inflatable seal
tube rubber
sealing member
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
JP925695A
Other languages
Japanese (ja)
Inventor
Masahiko Ishikawa
雅彦 石川
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.)
Yokohama Rubber Co Ltd
Original Assignee
Yokohama Rubber Co Ltd
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 Yokohama Rubber Co Ltd filed Critical Yokohama Rubber Co Ltd
Priority to JP925695A priority Critical patent/JPH08197641A/en
Publication of JPH08197641A publication Critical patent/JPH08197641A/en
Pending legal-status Critical Current

Links

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  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

PURPOSE: To effectively prevent a void part in a tube rubber from adhering and sticking in the vulcanization molding of an inflation sealing member especially having a small void part in the tube rubber and a large thick-wall rubber part. CONSTITUTION: An inflation sealing member is formed of a rubber-like elastic material in a band form. In the inflation sealing member, a tube rubber 2 with a void part is formed on one side face thereof, and a cover rubber 3 is provided on the periphery of the tube rubber 2 through a stretchable reinforcing cloth 4. A projection 6 to be abutted against an object to be sealed at the time of expansion is integrally formed on the upper part of the inflation sealing member. In the void part, an adhesion-preventing sheet 7 for preventing the void part of the tube rubber 2 from adhering and sticking in the vulcanization molding is provided in the void part. The adhesion-preventing sheet 7 made of a Teflon sheet or the like is previously contained in a tube rubber 2.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、インフレートシール
部材の製造方法に係わり、更に詳しくはインフレートシ
ール部材の製造時に、チューブゴム内に密着防止シート
を入れて加硫成形するインフレートシール部材の製造方
法に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an inflatable seal member, and more particularly, at the time of manufacturing the inflatable seal member, an inflatable seal member is produced by vulcanizing and molding an adhesion preventing sheet in a tube rubber. The present invention relates to a manufacturing method of.

【0002】[0002]

【従来の技術】従来、船舶用ハッチカバーの周縁部に配
設するシール部材や、車両の開閉扉の周縁部に配設する
シール部材の他、部屋や容器等の気密を保持する部分に
用いられるシール部材として、補強布を埋設したゴム状
弾性材料により形成した筒状体に、低圧の空気を供給す
ることによって筒状体の体積を瞬時に膨張させてタイト
にシールすることにより、空気や他のガス体,液体,粉
塵等を遮断するインフレートシール部材が使用されてい
る。
2. Description of the Related Art Conventionally, it has been used for a sealing member arranged on the peripheral portion of a hatch cover for a ship, a sealing member arranged on the peripheral portion of an opening / closing door of a vehicle, and a portion for maintaining airtightness of a room or a container. As a sealing member to be used, a low-pressure air is supplied to a tubular body formed of a rubber-like elastic material in which a reinforcing cloth is embedded to instantly expand the volume of the tubular body to tightly seal the air, An inflatable seal member that shuts off other gas bodies, liquids, dust, etc. is used.

【0003】[0003]

【発明が解決しようとする問題点】ところで、従来のイ
ンフレートシール部材の製造方法としては、インフレー
トシール部材の下モールド内に補強布を貼付けたカバー
ゴムシートを補強布が上になるように配設し、この補強
布上にチューブゴムを配設した後、上モールドを組付け
て加硫成形する。
By the way, as a conventional method for manufacturing an inflatable seal member, a cover rubber sheet having a reinforcing cloth stuck inside a lower mold of the inflatable seal member is arranged so that the reinforcing cloth is on top. After arranging and arranging the tube rubber on the reinforcing cloth, the upper mold is assembled and vulcanization molding is performed.

【0004】この際、チューブゴムの内面が密着して貼
付かないようにチューブゴム内に空気を入れて膨らまし
ながら加硫成形を行っていた。然しながら、チューブゴ
ム内の空隙部が小さく、しかもゴムの肉厚部分が多いイ
ンフレートシール部材の場合、従来の方法ではチューブ
ゴム内に空気が入らず、加硫成形後にモールド内から製
品を取り出してみると、チューブゴム内の空隙部が貼付
いてしまいインフレートシール部材が膨らまないと言う
問題があった。
At this time, vulcanization molding was carried out while inflating the tube rubber by inflating it so that the inner surface of the tube rubber does not stick to the inner surface of the tube rubber. However, in the case of an inflatable seal member with a small void in the tube rubber and a large thickness of rubber, air cannot enter the tube rubber by the conventional method, and the product should be taken out from the mold after vulcanization molding. As a result, there was a problem that the inflatable seal member did not swell because the void portion inside the tube rubber was stuck.

【0005】また、上記のようなインフレートシール部
材を製造する際、マンドレル(中子)を作成して同じよ
うな製造方法で製造することも考えられるが、マンドレ
ルが曲がってしまうと言う問題があった。この発明は、
かかる従来の課題に着目して案出されたもので、特にチ
ューブゴム内の空隙部が小さく、しかもゴムの肉厚部分
が多いインフレートシール部材を加硫成形する際、チュ
ーブゴム内の空隙部が密着して貼付いてしまうのを有効
に防止させたインフレートシール部材の製造方法を提供
することを目的とするものである。
Further, when manufacturing the above-mentioned inflatable seal member, it is possible to make a mandrel (core) and manufacture it by a similar manufacturing method, but there is a problem that the mandrel bends. there were. The present invention
The present invention has been devised in view of such conventional problems. Particularly, when vulcanizing and molding an inflatable seal member having a small void portion in the tube rubber and having a large thickness portion of the rubber, the void portion in the tube rubber. It is an object of the present invention to provide a method for manufacturing an inflatable seal member, which effectively prevents the adherence and sticking.

【0006】[0006]

【課題を解決するための手段】この発明は上記目的を達
成するため、下モールド内に補強布を貼付けたカバーゴ
ムシートを補強布が上になるように配設し、この補強布
上に密着防止シートを包み込むようにしてチューブゴム
を配設した後、上モールドを組付けて加硫成形すること
を要旨とするものである。
In order to achieve the above-mentioned object, the present invention arranges a cover rubber sheet having a reinforcing cloth stuck in a lower mold so that the reinforcing cloth faces upward, and closely adheres to the reinforcing cloth. The gist of the present invention is to dispose the tube rubber so as to wrap the prevention sheet, and then assemble and vulcanize the upper mold.

【0007】また、前記加硫成形後のインフレートシー
ル部材の成形品から密着防止シートを取り除いたり、そ
のまま残すことも可能であり、更に密着防止シートとし
て、テフロンシートを用いるものである。
Further, the adhesion preventing sheet can be removed or left as it is from the molded product of the inflatable seal member after the vulcanization molding, and a Teflon sheet is used as the adhesion preventing sheet.

【0008】[0008]

【発明の作用】この発明は上記のように構成され、チュ
ーブゴム内に密着防止シートを入れた状態で加硫成形す
ることにより、特にチューブゴム内の空隙部が小さく、
しかもゴムの肉厚部分が多いインフレートシール部材
(例えば、成形品の断面積:約タテ15mm×ヨコが15mm,
長さ4m)であってもチューブゴム内の空間部が密着し
て貼付いてしまうのを有効に防止出来るものである。
The present invention is configured as described above, and by vulcanization molding with the adhesion preventing sheet placed in the tube rubber, the voids in the tube rubber are particularly small,
Moreover, an inflatable seal member with a large thickness of rubber (for example, the cross-sectional area of the molded product: approx.
Even if the length is 4 m), it is possible to effectively prevent the space in the tube rubber from sticking to each other.

【0009】[0009]

【発明の実施例】以下、添付図面に基づき、この発明の
実施例を説明する。図1は、この発明の製造方法により
製造したインフレートシール部材1の一部切欠した正面
図、図2は図1のAーA矢視断面図、図3は図1のBー
B矢視断面図を示し、前記インフレートシール部材1
は、ゴム状弾性材料により帯状に形成され、このインフ
レートシール部材1は、一側面側に空隙部5を形成した
チューブゴム2が形成されると共に、その外周に伸縮可
能な補強布4を介してカバーゴム3が形成されている。
Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 is a partially cutaway front view of an inflatable seal member 1 manufactured by the manufacturing method of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is a view taken along the line BB of FIG. A sectional view is shown, and the inflatable seal member 1 is shown.
Is formed of a rubber-like elastic material in a band shape, and this inflatable seal member 1 has a tube rubber 2 having a void portion 5 formed on one side surface side, and a stretchable reinforcing cloth 4 interposed on the outer periphery thereof. Cover rubber 3 is formed.

【0010】またインフレートシール部材1の上部に
は、膨張時にシール対象物に当接する突起6が一体的に
形成され、またインフレートシール部材1の端末部1a
には、図示しない接続金具が取付けられる。前記空隙部
5内には、加硫成形時にチューブゴム2の空隙部5が密
着して貼付いてしまうのを防止する密着防止シート7が
内装され、この密着防止シート7としてはテフロンシー
ト等を用い、成形時に予めチューブゴム2内に収容して
おくものである。
Further, a projection 6 that abuts on an object to be sealed when inflated is integrally formed on the upper portion of the inflatable seal member 1, and the end portion 1a of the inflatable seal member 1 is also formed.
A connection fitting (not shown) is attached to. Inside the void 5, an adhesion preventing sheet 7 for preventing the void 5 of the tube rubber 2 from sticking and sticking during vulcanization molding is installed. As the adhesion preventing sheet 7, a Teflon sheet or the like is used. It is stored in the tube rubber 2 in advance at the time of molding.

【0011】また前記補強布4としては、伸縮性に富
み,柔軟性ある編み物(ニット編み等)や、伸縮可能な
織物(巻縮糸,伸縮糸,仮撚糸等により織った織物)を
使用するのが好ましい。即ち、ゴム状弾性材料に埋設す
る補強布4として伸縮可能な編み物や、伸縮可能な織物
を使用することにより、補強布4の変形に対する自由度
が大きくなり、補強布4とチューブゴム2及びカバーゴ
ム3との界面における剪断応力も小さくなり、界面での
破壊を有効に抑えることが出来るものである。
As the reinforcing cloth 4, a flexible knitted fabric (knitting or the like) having high elasticity and a stretchable fabric (woven fabric woven by crimped yarn, stretched yarn, false twisted yarn, etc.) are used. Is preferred. That is, by using a stretchable knit or a stretchable woven fabric as the reinforcing cloth 4 embedded in the rubber-like elastic material, the degree of freedom of deformation of the reinforcing cloth 4 is increased, and the reinforcing cloth 4, the tube rubber 2 and the cover. The shear stress at the interface with the rubber 3 is also reduced, and the breakage at the interface can be effectively suppressed.

【0012】また、ゴム状弾性材料の変形に対して補強
布4が追従し、変形に対する自由度が大きいので、複雑
な曲面形状や小さな曲げ半径の部分であっても十分に対
応して使用する事が出来るものである。また、インフレ
ートシール部材1に内圧をかける方法としては、気体,
液体等の流体の使用が考えられ、インフレートシール部
材1の使用上の容易さより、空気圧の使用が一般的であ
り、使用圧力としては、1.5 〜2.0 Kgf/cm2である。
Further, since the reinforcing cloth 4 follows the deformation of the rubber-like elastic material and has a large degree of freedom with respect to the deformation, even a complicated curved surface shape or a portion having a small bending radius can be used correspondingly. You can do things. In addition, as a method of applying internal pressure to the inflatable seal member 1, gas,
The use of a fluid such as a liquid is conceivable. Due to the ease of use of the inflatable seal member 1, air pressure is generally used, and the working pressure is 1.5 to 2.0 Kgf / cm 2 .

【0013】次にインフレートシール部材1の製造方法
を、図4を参照しながら説明する。インフレートシール
部材1を成形する下モールド8a内に、カバーゴム3を
構成するゴム状弾性材料9及び補強布4を配設すると共
に、この補強布4上にテフロンシートから成る密着防止
シート7を包み込むようにしてチューブゴム2を配設す
る。
Next, a method of manufacturing the inflatable seal member 1 will be described with reference to FIG. In the lower mold 8a for molding the inflatable seal member 1, the rubber-like elastic material 9 constituting the cover rubber 3 and the reinforcing cloth 4 are arranged, and the adhesion preventing sheet 7 made of a Teflon sheet is placed on the reinforcing cloth 4. The tube rubber 2 is arranged so as to be wrapped.

【0014】更に、その上にカバーゴム3及び突起6を
構成するゴム状弾性材料10を載置して、上モールド8
bを組付けて加熱プレスにより約150℃で加硫して、
インフレートシール部材1を製造するものである。また
成形後におけるインフレートシール部材1は、密着防止
シート7が予めチューブゴム2内に収容してあるので、
加硫成形時に空隙部5が密着して貼付くようなことはな
く、この密着防止シート7は、成形後にそのまま残して
おくか、取り除くものである。
Further, a rubber-like elastic material 10 constituting the cover rubber 3 and the protrusion 6 is placed on the upper mold 8
Assemble b and vulcanize it at about 150 ° C with a hot press,
The inflatable seal member 1 is manufactured. Further, in the inflatable seal member 1 after molding, since the adhesion preventing sheet 7 is housed in the tube rubber 2 in advance,
The voids 5 do not stick to each other during the vulcanization molding, and the adhesion preventing sheet 7 is left as it is after the molding or is removed.

【0015】また、この実施例におけるインフレートシ
ール部材1は、従来のインフレートシール部材に比べて
膨らみ部分が小さく、装置に取付け易いようにゴム状弾
性材料9,10の部分が多くなっており、これにより膨
張,収縮の繰返しを行ったとしても装置から外れるよう
な不具合が少なく、また耐久性も向上出来るものであ
る。
Further, the inflatable seal member 1 in this embodiment has a smaller bulging portion than the conventional inflatable seal member, and the rubber-like elastic materials 9 and 10 are increased in number so as to be easily attached to the apparatus. As a result, even if expansion and contraction are repeated, there are few problems that the device will come off from the device, and the durability can be improved.

【0016】[0016]

【発明の効果】この発明は、上記のように下モールド内
に補強布を貼付けたカバーゴムシートを補強布が上にな
るように配設し、この補強布上に密着防止シートを包み
込むようにしてチューブゴムを配設した後、上モールド
を組付けて加硫成形するので、特にチューブゴム内の空
隙部が小さく、しかもゴムの肉厚部分が多いインフレー
トシール部材を加硫成形する際、チューブゴム内の空隙
部が密着して貼付いてしまうのを有効に防止出来る効果
がある。
As described above, according to the present invention, the cover rubber sheet having the reinforcing cloth attached to the lower mold as described above is disposed so that the reinforcing cloth faces upward, and the adhesion preventing sheet is wrapped on the reinforcing cloth. After arranging the tube rubber, the upper mold is assembled and vulcanized and molded, so especially when the vulcanization and molding of the inflatable seal member in which the void portion in the tube rubber is small and the rubber has a large thickness portion, It has the effect of effectively preventing the gaps in the tube rubber from sticking to each other.

【0017】また、従来のインフレートシール部材に比
べて膨らみ部分が小さく、装置に取付け易いようにゴム
状弾性材料の部分が多くなっており、これにより膨張,
収縮の繰返しを行ったとしても装置から外れるような不
具合が少なく、また耐久性も向上出来るものである。
Further, the bulge portion is smaller than that of the conventional inflatable seal member, and the rubber-like elastic material portion is increased so as to be easily attached to the apparatus.
Even if the contraction is repeated, there are few problems that the device will come off from the device, and the durability can be improved.

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

【図1】この発明の製造方法により製造したインフレー
トシール部材の一部切欠した正面図である。
FIG. 1 is a partially cutaway front view of an inflatable seal member manufactured by a manufacturing method of the present invention.

【図2】図1のAーA矢視断面図である。FIG. 2 is a sectional view taken along the line AA of FIG.

【図3】図1のBーB矢視断面図である。FIG. 3 is a sectional view taken along the line BB of FIG.

【図4】インフレートシール部材の製造方法を示す説明
図である。
FIG. 4 is an explanatory diagram showing a method of manufacturing an inflatable seal member.

【符号の説明】[Explanation of symbols]

1 インフレートシール部材 2 チューブゴ
ム 3 カバーゴム 4 補強布 5 空隙部 6 突起 7 密着防止シート 8a 下モールド 8b 上モールド 9,10 ゴム状弾
性材料
DESCRIPTION OF SYMBOLS 1 Inflatable seal member 2 Tube rubber 3 Cover rubber 4 Reinforcing cloth 5 Gap 6 Protrusion 7 Adhesion prevention sheet 8a Lower mold 8b Upper mold 9,10 Rubber-like elastic material

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 B29L 31:26 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technical display location B29L 31:26

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 下モールド内に補強布を貼付けたカバー
ゴムシートを補強布が上になるように配設し、この補強
布上に密着防止シートを包み込むようにしてチューブゴ
ムを配設した後、上モールドを組付けて加硫成形するこ
とを特徴とするインフレートシール部材の製造方法。
1. A cover rubber sheet having a reinforcing cloth attached in a lower mold is arranged so that the reinforcing cloth faces upward, and a tube rubber is arranged so as to wrap the adhesion preventing sheet on the reinforcing cloth. A method for manufacturing an inflatable seal member, which comprises assembling an upper mold and performing vulcanization molding.
【請求項2】 前記加硫成形後のインフレートシール部
材の成形品から密着防止シートを取り除く請求項1に記
載のインフレートシール部材の製造方法。
2. The method for producing an inflatable seal member according to claim 1, wherein the adhesion preventing sheet is removed from the molded product of the inflatable seal member after the vulcanization molding.
【請求項3】 前記密着防止シートとして、テフロンシ
ートを用いる請求項1または請求項2に記載のインフレ
ートシール部材の製造方法。
3. The method for manufacturing an inflatable seal member according to claim 1, wherein a Teflon sheet is used as the adhesion preventing sheet.
JP925695A 1995-01-24 1995-01-24 Production of inflation sealing member Pending JPH08197641A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP925695A JPH08197641A (en) 1995-01-24 1995-01-24 Production of inflation sealing member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP925695A JPH08197641A (en) 1995-01-24 1995-01-24 Production of inflation sealing member

Publications (1)

Publication Number Publication Date
JPH08197641A true JPH08197641A (en) 1996-08-06

Family

ID=11715345

Family Applications (1)

Application Number Title Priority Date Filing Date
JP925695A Pending JPH08197641A (en) 1995-01-24 1995-01-24 Production of inflation sealing member

Country Status (1)

Country Link
JP (1) JPH08197641A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106799801A (en) * 2017-01-20 2017-06-06 无锡市万丰橡胶有限公司 A kind of secondary preforming sulfurizing mould of rubber and sulfuration process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106799801A (en) * 2017-01-20 2017-06-06 无锡市万丰橡胶有限公司 A kind of secondary preforming sulfurizing mould of rubber and sulfuration process

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