JPS638353B2 - - Google Patents
Info
- Publication number
- JPS638353B2 JPS638353B2 JP2890781A JP2890781A JPS638353B2 JP S638353 B2 JPS638353 B2 JP S638353B2 JP 2890781 A JP2890781 A JP 2890781A JP 2890781 A JP2890781 A JP 2890781A JP S638353 B2 JPS638353 B2 JP S638353B2
- Authority
- JP
- Japan
- Prior art keywords
- same
- diameter
- core
- rubber hose
- 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.)
- Expired
Links
- 229920001971 elastomer Polymers 0.000 claims description 37
- 239000002184 metal Substances 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 15
- 230000006698 induction Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 6
- 238000004073 vulcanization Methods 0.000 description 7
- 230000035699 permeability Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Description
【発明の詳細な説明】
本発明はゴムホースの同径接続方法に係り、特
に加熱処理時における同径接続部内外面の温度差
を少なくして均一な加硫を行い、同径接続部の内
圧強度等の特性を向上すると共に、接続作業後に
おける中子の除去を容易とするのに好適なゴムホ
ースの同径接続方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for connecting rubber hoses with the same diameter, and in particular, reduces the temperature difference between the inner and outer surfaces of the same diameter connection during heat treatment to achieve uniform vulcanization, and improves the internal pressure strength of the same diameter connection. The present invention relates to a method for connecting rubber hoses with the same diameter, which is suitable for improving characteristics such as the above, and facilitating removal of the core after connection work.
従来、ゴムホースの同径接続作業を行う場合、
同径接続部内に円筒状の中子を挿入するようにし
ているが、中子は単にゴムホースを内側から機械
的に支える目的で挿入され、加熱は同径接続部の
外側からのみ行われる。 Conventionally, when connecting rubber hoses with the same diameter,
A cylindrical core is inserted into the same-diameter connection, but the core is inserted solely for the purpose of mechanically supporting the rubber hose from the inside, and heating is performed only from the outside of the same-diameter connection.
第１図はゴムホースの同径接続部の部分断面図
である。第１図において、１はゴムホースで、１
１，１２，１３は夫々ゴムホース１の内面ゴム、
補強層、外面ゴムである。 FIG. 1 is a partial sectional view of the same-diameter connecting portion of the rubber hose. In Figure 1, 1 is a rubber hose;
1, 12, and 13 are inner rubber of the rubber hose 1, respectively;
Reinforcement layer, outer rubber.
２は中子、３は同径接続部で、３１，３２，３
３は夫々同径接続部３の内面ゴム、補強層、外面
ゴムである。４は加圧用布巻層である。 2 is the core, 3 is the same diameter connection part, 31, 32, 3
Reference numerals 3 denote an inner rubber, a reinforcing layer, and an outer rubber of the same-diameter connecting portion 3, respectively. 4 is a cloth wrapping layer for pressurization.
中子２は同径接続部３を内側から機械的に支え
るために挿入してあり、加熱は同径接続部３の外
側に設けた加熱用ヒータ５（蒸気を用いることも
ある。）によつて行うようにしている。 The core 2 is inserted to mechanically support the same-diameter joint 3 from the inside, and is heated by a heating heater 5 (steam may be used) provided on the outside of the same-diameter joint 3. I try to keep up with it.
しかしこの場合は、同径接続部３の内側の温度
は、外側よりも低くなり、加硫に過不足が生ず
る。例えば、ゴムホース１がクロロプレンゴムホ
ースで、内径200mm、厚さ30mmの場合、同径接続
部３の加硫条件は、150℃で４時間位が適当であ
るが、同径接続部３の外面が150℃になつても、
それの内面は90℃程度に上昇するのみである。従
つて、このままでは、内面側が加硫不足となる。
又、内面が150℃になるまで加熱すると、外面温
度が著しく高くなり、外面ゴム３３が熱劣化する
ことになる。 However, in this case, the temperature inside the same-diameter connecting portion 3 is lower than the outside temperature, resulting in excess or deficiency in vulcanization. For example, if the rubber hose 1 is a chloroprene rubber hose with an inner diameter of 200 mm and a thickness of 30 mm, the appropriate vulcanization conditions for the same-diameter connection part 3 are 150°C for about 4 hours, but if the outer surface of the same-diameter connection part 3 is 150 Even if the temperature reaches ℃,
Its inner surface only rises to about 90°C. Therefore, if left as is, the inner surface will be insufficiently vulcanized.
Furthermore, when the inner surface is heated to 150° C., the outer surface temperature becomes extremely high, and the outer surface rubber 33 is thermally deteriorated.
一方、同径接続作業終了後は、中子２を引き抜
くことが望ましい。しかし、中子２の外径はゴム
ホース１の内径と同じに形成されていることか
ら、これをゴムホース１の同径接続部３から引き
抜くことは容易でなく、このため通常はそのまま
放置されている。 On the other hand, it is desirable to pull out the core 2 after completing the same-diameter connection work. However, since the outer diameter of the core 2 is the same as the inner diameter of the rubber hose 1, it is not easy to pull it out from the same-diameter connection 3 of the rubber hose 1, and for this reason, it is usually left as is. .
本発明は上記に鑑みてなされたもので、その目
的とするところは、同径接続部内外面の温度差を
少なくして均一な加硫を行うことができ、しか
も、同径接続作業後における中子の除去が容易な
ゴムホースの同径接続方法を提供することにあ
る。 The present invention has been made in view of the above, and its purpose is to reduce the temperature difference between the inner and outer surfaces of the same-diameter connection part, to perform uniform vulcanization, and to make it possible to perform uniform vulcanization after the same-diameter connection work. An object of the present invention is to provide a method for connecting rubber hoses with the same diameter, which makes it easy to remove the hoses.
本発明の特徴は、ゴムホースの同径接続部内に
誘導加熱可能の部材で構成した中子を挿入し、上
記同径接続部の外側に上記中子を誘導加熱するた
めの誘導コイルを設けて、この誘導コイルに交番
電流を流して上記中子を誘導加熱することによつ
て上記同径接続部を内外両側から加熱して同径接
続を行うと同時に、中子として、パイプ状の支持
金具と、該支持金具の周囲に当該支持金具に対し
て着脱可能に取り付けられていて、且つ全体の外
径がゴムホースの内径と同径となるように並べた
透磁率が大きい複数個の表面金具とよりなるもの
を用い、接続作業後前記支持金具を同径接続部内
から引き出して前記表面金具の形をくずした上で
当該表面金具も引き出すことにより中子全体を同
径接続部内から取り除くようにした点にある。 A feature of the present invention is that a core made of a member capable of induction heating is inserted into a connecting portion of the same diameter of a rubber hose, and an induction coil for induction heating the core is provided outside of the connecting portion of the same diameter. By passing an alternating current through this induction coil and heating the core by induction, the same-diameter connection part is heated from both the inside and outside sides, and the same-diameter connection is made. , a plurality of surface metal fittings with high magnetic permeability that are removably attached to the support metal fitting around the support metal fitting and are arranged so that the overall outer diameter is the same as the inner diameter of the rubber hose. After the connection work, the support metal fitting is pulled out from inside the same-diameter connection part, the shape of the surface metal fitting is broken, and the surface metal fitting is also pulled out, so that the entire core is removed from the same-diameter connection part. It is in.
以下本発明の方法の一実施例を第２図、第３図
を用いて詳細に説明する。 An embodiment of the method of the present invention will be described in detail below with reference to FIGS. 2 and 3.
第２図は本発明の方法の一実施例を説明するた
めのゴムホースの同径接続部の部分断面図であ
る。第２図において、第１図と同一部分は同じ符
号で示し、ここでは説明を省略する。 FIG. 2 is a partial sectional view of a same-diameter connection part of a rubber hose for explaining an embodiment of the method of the present invention. In FIG. 2, the same parts as in FIG. 1 are indicated by the same reference numerals, and their explanation will be omitted here.
第２図においては、同径接続部３の内側に誘導
加熱可能の部材で構成した中子７が挿入してあ
り、同径接続部３の外側には、加熱用ヒータ５
（蒸気を用いる構成のものでもよい。）のほかに中
子７を誘導加熱する誘導コイル８を設けてある。 In FIG. 2, a core 7 made of a member capable of induction heating is inserted inside the same-diameter connecting portion 3, and a heating heater 5 is inserted outside the same-diameter connecting portion 3.
(A structure using steam may also be used.) In addition to this, an induction coil 8 for inductively heating the core 7 is provided.
第３図は第２図の中子７の一例を示す構成図
で、ａは側面図、ｂは正面図である。第３図に示
すように、中子７はパイプ状の支持金具７１と支
持金具７１の外周に当該支持金具７１に対して着
脱可能に取り付けられていて、且つ全体の外径が
ゴムホース１の内径と同一の外径となるように並
べた複数個（第３図では４個）の透磁率が大きい
部材よりなる表面金具７２とより構成してあり、
同径接続作業後終了後支持金具７１をロープ７３
で引き抜くと、表面金具７２の形が崩れて、表面
金具７２も容易に引き抜くことができ、しかして
中子７全体を同径接続部３内から容易に取り除く
ことができるようにしてある。 FIG. 3 is a configuration diagram showing an example of the core 7 in FIG. 2, in which a is a side view and b is a front view. As shown in FIG. 3, the core 7 is removably attached to a pipe-shaped support fitting 71 and the outer periphery of the support fitting 71, and the entire outer diameter is the same as the inner diameter of the rubber hose 1. It is composed of a plurality of (four in FIG. 3) surface fittings 72 made of members with high magnetic permeability arranged so as to have the same outer diameter as,
After completing the same diameter connection work, attach the support fitting 71 to the rope 73.
When pulled out, the shape of the surface metal fitting 72 collapses, and the surface metal fitting 72 can also be easily pulled out, thus making it possible to easily remove the entire core 7 from within the same-diameter connecting portion 3.
次に同径接続作業について説明する。中子７を
使用し、ゴムホース１の内面ゴム１１、補強層１
２、外面ゴム１３間を同径接続部３の未加硫の内
面ゴム３１、補強層３２、外面ゴム３３で貼り合
せ及びステツプ加工し、さらに加圧用布巻層４を
設けた後に、同径接続部３の外側に加熱用ヒータ
５及び誘導コイル８を設置して、これらに通電す
ることにより、同径接続部３の内外面から加熱し
て、内面ゴム３１及び外面ゴム３３を加硫する。 Next, the same diameter connection work will be explained. Using core 7, inner rubber 11 of rubber hose 1, reinforcing layer 1
2. After pasting and step-processing the unvulcanized inner rubber 31, reinforcing layer 32, and outer rubber 33 of the same-diameter connection portion 3 between the outer rubber 13, and further providing the cloth-wrapped layer 4 for pressurization, the same-diameter connection is made. A heating heater 5 and an induction coil 8 are installed outside the portion 3 and are energized to heat the inner and outer surfaces of the connecting portion 3 having the same diameter, thereby vulcanizing the inner rubber 31 and the outer rubber 33.
同径接続作業が終了したら、前述のようにして
中子７を同径接続部３内から取り除く。 When the same-diameter connection work is completed, the core 7 is removed from the same-diameter connection portion 3 as described above.
上記した本発明の実施例によれば、中子７を誘
導加熱することによつて同径接続部３を内面から
加熱するとともに加熱用ヒータ５によつて外面か
らも加熱するようにしたので、同径接続部３の内
外面の温度差を少なくして均一な加硫を行うこと
ができ、ゴムホース１の同径接続部３の内圧強度
等の特性を向上させることが可能である。 According to the embodiment of the present invention described above, the same-diameter connecting portion 3 is heated from the inner surface by induction heating the core 7, and is also heated from the outer surface by the heating heater 5. Uniform vulcanization can be performed by reducing the temperature difference between the inner and outer surfaces of the same-diameter connecting portion 3, and characteristics such as internal pressure strength of the same-diameter connecting portion 3 of the rubber hose 1 can be improved.
加えて、中子として、パイプ状の支持金具と、
該支持金具の周囲に当該支持金具に対して着脱可
能に取り付けられていて、且つ全体の外径がゴム
ホースの内径と同径となるように並べた透磁率が
大きい複数個の表面金具とよりなるものを用い、
接続作業後前記支持金具を同径接続部内から引出
して前記表面金具の形を崩した上で当該表面金具
も引き出すことにより中子全体を同径接続部内か
ら取り除くようにしたことから、従来容易でない
とされていた同径接続部内からの中子除去がきわ
めて容易に行える。 In addition, a pipe-shaped support fitting is used as the core,
Consisting of a plurality of surface metal fittings with high magnetic permeability that are detachably attached to the support metal fitting around the support metal fitting and arranged so that the overall outer diameter is the same as the inner diameter of the rubber hose. using things,
After the connection work, the support metal fittings are pulled out from inside the same-diameter connection part to break the shape of the surface metal fittings, and the surface metal fittings are also pulled out to remove the entire core from the same-diameter connection parts, which is not easy in the past. It is extremely easy to remove the core from within the same-diameter connection.
以上説明したように、本発明によれば、同径接
続部内外面の温度差を少なくして均一な加硫を行
うことができ、しかも同径接続作業を容易に行う
ことができるという効果がある。 As explained above, according to the present invention, it is possible to perform uniform vulcanization by reducing the temperature difference between the inner and outer surfaces of the same-diameter connection part, and the same-diameter connection work can be easily performed. .
第１図は従来のゴムホースの同径接続方法を説
明するための同径接続部の部分断面図、第２図は
本発明のゴムホースの同径接続方法の一実施例を
説明するための同径接続部の部分断面図、第３図
は第２図の中子の一例を示す構造図である。
１：ゴムホース、３：同径接続部、５：加熱用
ヒータ、７：中子、７１：支持金具、７２：表面
金具、７３：ロープ、８：誘導コイル。
FIG. 1 is a partial sectional view of a same-diameter connection part for explaining a conventional method for connecting rubber hoses with the same diameter, and FIG. FIG. 3 is a partial cross-sectional view of the connecting portion, and is a structural diagram showing an example of the core shown in FIG. 2. 1: Rubber hose, 3: Same diameter connection, 5: Heater, 7: Core, 71: Support metal fitting, 72: Surface metal fitting, 73: Rope, 8: Induction coil.
Claims (1)
部の外側から加熱すると共に、前記ゴムホースの
同径接続部内に誘導加熱可能の部材で構成した中
子を挿入し、前記同径接続部の外側に前記中子を
誘導加熱するための誘導コイルを設け、該誘導コ
イルに交番電流を流して前記中子を誘導加熱する
ことによつて前記同径接続部を内外両側から加熱
してゴムホースの同径接続を行うに当たり、前記
中子として、パイプ状の支持金具７１と、該支持
金具７１の周囲に当該支持金具７１に対して着脱
可能に取り付けられていて、且つ全体の外径がゴ
ムホースの内径と同径となるように並べた誘磁率
が大きい複数個の表面金具７２とよりなるものを
用い、接続作業後前記支持金具７１を同径接続部
内から引き出して前記表面金具７２の形を崩した
上で当該表面金具７２も引き出すことにより中子
全体を同径接続部内から取り除くことを特徴とす
るゴムホースの同径接続方法。1 Heat the same-diameter joint of the rubber hose from the outside with a heating heater, insert a core made of a member capable of induction heating into the same-diameter joint of the rubber hose, and heat the rubber hose from the outside of the same-diameter joint. An induction coil is provided for inductively heating the core, and by passing an alternating current through the induction coil to inductively heat the core, the same-diameter connection portion is heated from both inside and outside sides, and the rubber hose has the same diameter. In making the connection, the core is a pipe-shaped support fitting 71, which is removably attached to the support fitting 71 around the support fitting 71, and whose overall outer diameter is the same as the inner diameter of the rubber hose. Using a surface metal fitting 72 with a large permittivity arranged to have the same diameter, after the connection work, the support metal fitting 71 is pulled out from within the connection part with the same diameter, and the shape of the surface metal fitting 72 is broken. A method for connecting rubber hoses with the same diameter, characterized in that the entire core is removed from the same diameter connection part by also pulling out the surface fitting 72.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2890781A JPS57144390A (en) | 1981-02-27 | 1981-02-27 | Equal sized joining method of rubber hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2890781A JPS57144390A (en) | 1981-02-27 | 1981-02-27 | Equal sized joining method of rubber hose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57144390A JPS57144390A (en) | 1982-09-06 |
| JPS638353B2 true JPS638353B2 (en) | 1988-02-22 |
Family
ID=12261469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2890781A Granted JPS57144390A (en) | 1981-02-27 | 1981-02-27 | Equal sized joining method of rubber hose |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57144390A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0434942U (en) * | 1990-07-19 | 1992-03-24 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59126195A (en) * | 1982-12-30 | 1984-07-20 | 日本シヤ−ウツド株式会社 | Method of joining tube |
-
1981
- 1981-02-27 JP JP2890781A patent/JPS57144390A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0434942U (en) * | 1990-07-19 | 1992-03-24 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57144390A (en) | 1982-09-06 |
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