JP2577385B2 - Manufacturing method of laminated tube - Google Patents
Manufacturing method of laminated tubeInfo
- Publication number
- JP2577385B2 JP2577385B2 JP62167445A JP16744587A JP2577385B2 JP 2577385 B2 JP2577385 B2 JP 2577385B2 JP 62167445 A JP62167445 A JP 62167445A JP 16744587 A JP16744587 A JP 16744587A JP 2577385 B2 JP2577385 B2 JP 2577385B2
- Authority
- JP
- Japan
- Prior art keywords
- shape memory
- memory alloy
- tape
- laminated tube
- prepreg
- 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 - Lifetime
Links
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- Moulding By Coating Moulds (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は釣竿、ゴルフシャフト等の積層管の製造方法
に関する。Description: TECHNICAL FIELD The present invention relates to a method for manufacturing a laminated pipe such as a fishing rod and a golf shaft.
〔従来の技術〕 従来の釣竿、ゴルフシャフト等の積層管の製造方法
は、炭素、ガラス、ボロン、ポリアミド等の高強度繊維
に、エポキシ、フエノール、ポリエステル等の樹脂を含
浸し、これを半乾燥させてプリプレグとし、該プリプレ
グを台形状に裁断し、離型剤、接着剤を塗布した芯金に
層状に捲回し、この外周にセロファンテープ、ポリプロ
ピレンテープ、シリコンコートポリエステルテープ等の
テープ(幅10〜20mm、厚さ25〜60μ)を2〜2.5mmピッ
チに、張力2〜5kgで捲回し、この状態で、例えば100℃
で30分、150℃で60分程度加熱させて硬化させた後、芯
金と分離し、外層へ捲回したテープを除去し、積層管を
得ていた。[Prior art] A conventional method of manufacturing a laminated pipe such as a fishing rod and a golf shaft involves impregnating a high-strength fiber such as carbon, glass, boron, or polyamide with a resin such as epoxy, phenol, or polyester, and then semi-drying the resin. Then, the prepreg was cut into a trapezoidal shape, wound in layers on a core metal coated with a release agent and an adhesive, and a tape (width of 10 mm) such as a cellophane tape, a polypropylene tape, a silicon-coated polyester tape, etc. 2020 mm, thickness 25〜60 μ) at a pitch of 2 to 2.5 mm with a tension of 2 to 5 kg.
After heating for 30 minutes at 150 ° C. for about 60 minutes to cure, the tape was separated from the core metal, and the tape wound around the outer layer was removed to obtain a laminated tube.
しかしながら、上述製造方法によると、外型として使
用するテープは、厚さむら、弾性率、強度、熱収縮率の
安定性が必要であると共に、スリットした端面の平滑性
が重要であり、又端面の保護も必要である。However, according to the above-described manufacturing method, the tape used as the outer mold needs to have the thickness unevenness, the elastic modulus, the strength, and the stability of the heat shrinkage rate, and the smoothness of the slit end face is important. Protection is also needed.
即ち、テープ端面に微少なりとも傷があると、応力集
中が発生し、捲回時に切れてしまい、又厚さむらは、テ
ープの伸び、収縮に影響し、厚い部分が積層管へ喰い込
み、薄い部分は径が大きくなり、積層管の表面に凹凸を
発生させる。In other words, if there is a slight damage on the tape end surface, stress concentration occurs, it is broken at the time of winding, and thickness unevenness affects the elongation and shrinkage of the tape, the thick part bites into the laminated tube, The thin part has a large diameter and causes irregularities on the surface of the laminated tube.
又、弾性率、強度は、テープに2〜5kgの張力を一定
してかけて捲回する為、この特性が異なる都度、張力を
調整する必要があり、安定した条件を得る為に重要であ
る。In addition, the modulus of elasticity and the strength are required to adjust the tension every time this characteristic is different, since the tape is wound with a constant tension of 2 to 5 kg, which is important for obtaining stable conditions. .
上述のようにテープの品質管理を行なう必要があり、
又このように品質管理を行なって捲回してもなおかつ、
積層管の外径寸法はテープの諸物性、張力コントロール
に左右され、特に厚肉の積層管ほど外径寸法が大きくば
らつき、所望の外径寸法が得られなかったり、又テープ
の締め付け力が小さいと、気泡を含み、物性の低下も発
生し、又外径寸法が不安定な為釣竿にあっては、接合
部、糸導管等の接着部をセンターレスグラインダーで外
径後加工が必要であり、更に、硬化後は、テープの除去
に時間を要すると共に、特に炭素繊維の積層管について
は、テープを捲き戻して除去するのに多大の労力を必要
とし、除去したテープは大きな容積を占めるので、処理
する為には焼却するしかないが、焼却することにより高
温を発生し、有毒ガスを発生する等焼却炉の寿命を縮
め、又煙公害の対策が必要であり、更にテープは副材料
として生産コストがアップする等の諸問題点を有してい
る。It is necessary to control the quality of the tape as described above,
In addition, even if it is wound up after performing quality control in this way,
The outer diameter of the laminated tube depends on the physical properties of the tape and the control of the tension. In particular, the thicker the laminated tube, the larger the outer diameter varies, and the desired outer diameter cannot be obtained, or the tape tightening force is small. In addition, because it contains air bubbles, the physical properties decrease, and the outer diameter dimension is unstable, it is necessary to process the outer diameter of the fishing rod with the centerless grinder on the joint such as the joint and the line conduit. Further, after curing, it takes time to remove the tape, and especially for a carbon fiber laminated tube, a great deal of effort is required to unwind and remove the tape, and the removed tape occupies a large volume. In order to treat, incineration is the only option. However, incineration generates high temperature, generates toxic gas, shortens the life of the incinerator, requires smoke pollution measures, and requires tape as an auxiliary material. Production costs It has various problems such as the flop.
この発明は、簡易な製造工程にて、肉厚が一定で、さ
らに外径寸法や補強繊維量に対する合成樹脂の配分量が
均質な積層管の製造方法を提供することを目的とする。An object of the present invention is to provide a method for manufacturing a laminated tube in which the thickness is constant and the distribution of the synthetic resin with respect to the outer diameter and the amount of the reinforcing fiber is uniform in a simple manufacturing process.
本発明にかかる積層管の製造方法においては、積層管
成形用芯金に補強繊維に合成樹脂を含浸させたプリプレ
グを層状に捲回し、前記プリプレグに含浸された合成樹
脂が液状に軟化する溶解温度で予め所望の内径になるよ
うに設定された形状記憶合金製テープを螺旋状に捲回し
て、前記プリプレグの捲回層の外周を覆い、以下、常法
にて焼成し、しかる後に前記形状記憶合金製テープと前
記積層管成形用芯金とを分離することを特徴とする。In the method for manufacturing a laminated tube according to the present invention, a prepreg obtained by impregnating a synthetic resin into a reinforcing fiber in a cored tube for forming a laminated tube is wound into a layer, and a melting temperature at which the synthetic resin impregnated in the prepreg softens into a liquid state. In a spiral wound a shape memory alloy tape set in advance to have a desired inner diameter, covering the outer periphery of the wound layer of the prepreg, and then fired by a conventional method, and then the shape memory The invention is characterized in that an alloy tape and the core metal for forming a laminated tube are separated.
本発明にかかる積層管の製造方法においては、前記形
状記憶合金製テープは、前記溶解温度で、予め所望の内
径になる。この状態で焼成されると、前記螺旋捲回状態
の形状記憶合金製テープの重ね合せ部分から余分な樹脂
および空気が流出する。これより、前記所望の外径を有
する積層管が得られる。In the method for manufacturing a laminated tube according to the present invention, the shape memory alloy tape has a desired inner diameter in advance at the melting temperature. If fired in this state, excess resin and air will flow out of the overlapping portion of the spirally wound shape memory alloy tape. Thus, a laminated tube having the desired outer diameter is obtained.
以下本発明製造方法を実施例を示した図面に基づいて
詳述する。Hereinafter, the manufacturing method of the present invention will be described in detail with reference to the drawings showing examples.
第1図に示したように、所望外径寸法の外型成形用芯
金1を緩円錐形状に製作した。As shown in FIG. 1, a core 1 for forming an outer die having a desired outer diameter was manufactured in a gentle conical shape.
図示例では先径dをφ8.50mm、元径Dをφ15.40mm、
有効長lを1140mmとした。In the illustrated example, the tip diameter d is φ8.50 mm, the base diameter D is φ15.40 mm,
The effective length 1 was 1140 mm.
上記外型成形用芯金1の外周に、厚さ20〜100μで幅
5〜20mm(図示例では厚さ100μ、幅10mm)の帯状をな
す形状記憶合金テープ2を2.5mmピッチpで張力10kgで
螺旋状に捲回し、次いでこれを400℃で15分間真空熱処
理炉中で加熱した後、急冷させ、外型成形用芯金1と分
離した。A strip of shape memory alloy tape 2 having a thickness of 20 to 100 μm and a width of 5 to 20 mm (thickness of 100 μm, width 10 mm in the illustrated example) is tensioned at a pitch of 2.5 mm and a tension of 10 kg on the outer circumference of the core 1 for forming an outer die. And then heated in a vacuum heat treatment furnace at 400 ° C. for 15 minutes, quenched and separated from the outer mold core 1.
これにより第2図に示したように螺旋状に捲かれた形
状記憶合金製テープ2に所定の径を記憶させた形状記憶
合金製外型3を成形した。As a result, an outer mold 3 made of a shape memory alloy having a predetermined diameter stored in a shape memory alloy tape 2 spirally wound as shown in FIG.
こゝで、上記形状記憶合金としてはNi−Ti合金が用い
られるが、この形状記憶合金は常温17〜27℃で5%伸
び、100℃で記憶寸法(設定寸法)になるように設定し
たものを使用した。Here, a Ni-Ti alloy is used as the shape memory alloy, and the shape memory alloy is set to elongate 5% at room temperature of 17 to 27 ° C and to have a memory size (set size) at 100 ° C. It was used.
又、上記形状記憶合金製テープ2は、第3図に示した
ように、適当幅ずつ重ね合わせて外型成形用芯金1に捲
回させ、後述する積層管の焼成時にあって、余分な樹脂
及び空気が記憶寸法に縮径するに伴い図示の矢印方向へ
流出するようにしてある。これにより、形状記憶合金製
薄板2は、100℃では、所望の内径を有する螺旋捲回状
態となる。Further, as shown in FIG. 3, the shape memory alloy tape 2 is superposed on the core metal for forming an outer die 1 by superimposing an appropriate width and wound around the core 1 for forming an outer die. As the diameter of the resin and the air is reduced to the memory size, the resin and the air flow out in the direction of the arrow shown in the figure. As a result, the shape memory alloy thin plate 2 becomes a spiral wound state having a desired inner diameter at 100 ° C.
なお、形状記憶合金製外型3の先端3a及び基端3bは第
4図のように夫々内側へ曲成し、積層管の端部が第9図
のようにR面に成形されるようにしてある。これによ
り、カーボンプリプレグシート5、6に含浸されている
合成樹脂が液状に溶解しても両端部から流出することが
ない。The distal end 3a and the proximal end 3b of the outer die 3 made of a shape memory alloy are each bent inward as shown in FIG. 4 so that the end of the laminated tube is formed into an R-plane as shown in FIG. It is. Thereby, even if the synthetic resin impregnated in the carbon prepreg sheets 5 and 6 dissolves in a liquid state, it does not flow out from both ends.
積層管成形用芯金4は、第5図、第6図に示したよう
に所望の外径寸法を有して緩円錐形状に製作する。図示
例では先径d′をφ5.10mm、元径D′を12.70mm、有効
長さl′を1140mmに製作した。As shown in FIGS. 5 and 6, the core 4 for forming a laminated tube is manufactured in a gentle conical shape having a desired outer diameter. In the illustrated example, the tip diameter d 'was 5.10 mm, the original diameter D' was 12.70 mm, and the effective length l 'was 1140 mm.
上記芯金4に離型剤、接着剤(エポキシ樹脂)を塗布
し、下記の表に示した寸法に裁断した内層及び外層成形
用のカーボンプリプレグシート5、6を500kgの荷重を
かけながら第7図のように層状に捲回し、内層5a、外層
6aを得た。A mold release agent and an adhesive (epoxy resin) are applied to the metal core 4 and the carbon prepreg sheets 5 and 6 for forming the inner layer and the outer layer cut to the dimensions shown in the following table are subjected to the seventh step while applying a load of 500 kg. Wound in layers as shown, inner layer 5a, outer layer
6a was obtained.
こゝで、積層管の内、外両層5a、6aを構成する材料と
しては、上記カーボンプリプレグシートの他に、ガラス
繊維、ボロン繊維、ポリアミド繊維等の高強度繊維にエ
ポキシ樹脂、フエノール樹脂、ポリエステル樹脂等の熱
硬化性及び熱可塑性樹脂を含浸したヤーン状、シート状
のこれら複合材プリプレグが使用される。 Here, as a material constituting the outer and inner layers 5a and 6a of the laminated pipe, in addition to the carbon prepreg sheet, glass fiber, boron fiber, high-strength fiber such as polyamide fiber, epoxy resin, phenol resin, A yarn-like or sheet-like composite prepreg impregnated with a thermosetting or thermoplastic resin such as a polyester resin is used.
このように積層管成形用芯金4にカーボンプリプレグ
シート5、6を捲回して得た外層6aの外周に前記形状記
憶合金製外型3を第8図のように被着し、これを120℃
で1時間、さらに130℃で1時間加熱し、硬化させた。The outer die 3 made of the shape memory alloy is attached to the outer periphery of the outer layer 6a obtained by winding the carbon prepreg sheets 5 and 6 around the cored bar 4 for forming a laminated pipe as shown in FIG. ° C
For 1 hour and further at 130 ° C. for 1 hour to cure.
この場合、カーボンプリプレグシート5、6の層間は
密着状態ではなく、またカーボンプリプレグシート5、
6には空気も含まれている。さらに、含浸樹脂量の割合
が多い場合がある。したがって、カーボンプリプレグシ
ート5、6に被着された形状記憶合金製テープ2の内径
は、可及的に、大きな状態となる。形状記憶合金製テー
プ2は、前記加熱により予め決められている内径を有す
る螺旋状になる。すなわち、形状記憶合金製テープ2の
内径が縮径することとなる。In this case, the layers of the carbon prepreg sheets 5 and 6 are not in close contact with each other, and
6 also contains air. Further, the ratio of the amount of the impregnated resin may be large. Therefore, the inner diameter of the shape memory alloy tape 2 attached to the carbon prepreg sheets 5 and 6 is as large as possible. The heating causes the shape memory alloy tape 2 to form a spiral having a predetermined inner diameter. That is, the inner diameter of the shape memory alloy tape 2 is reduced.
これを常温まで冷却させたところ、外型3の内径、つ
まり先径dがφ8.925mm、元径Dがφ16.17mmに拡径し
た。これにより外型3は上記外層6aと分離できるので、
当該外型3を第9図のように除去した。When this was cooled to room temperature, the inner diameter of the outer mold 3, that is, the tip diameter d was increased to φ8.925 mm and the original diameter D was increased to φ16.17 mm. As a result, the outer mold 3 can be separated from the outer layer 6a,
The outer mold 3 was removed as shown in FIG.
次いで、内径用芯金4を常法により脱芯機で分離し、
積層管7を得た。Next, the core 4 for the inner diameter is separated by a de-corer by an ordinary method,
A laminated tube 7 was obtained.
このようにして製造された積層管7の外径寸法は、前
記外型用芯金3の内寸法(先径d:8.5mm、元径D:φ15.4m
m)の通りであり、又外観はテープ使用時と同等のピッ
チp:2.5mmのリング状模様8が第10図のように現われ、
一般的なカーボン積層管の外観と同一のものが得られ
た。The outer diameter of the laminated tube 7 manufactured in this manner is the inner diameter of the outer core 3 (tip diameter d: 8.5 mm, base diameter D: φ15.4 m).
m), and a ring-shaped pattern 8 with a pitch p: 2.5 mm equivalent to that when using a tape appears as shown in FIG.
The same appearance as that of a general carbon laminated tube was obtained.
又、部分的な収縮はみられず、均一で真円状態に近い
形状が得られた。No partial shrinkage was observed, and a uniform and nearly circular shape was obtained.
又、製造した積層管7を切断し、その断面を顕微鏡で
観察したところ気泡はみられなかった。Further, when the manufactured laminated tube 7 was cut and the cross section thereof was observed with a microscope, no bubbles were observed.
なお、含浸樹脂が半硬化状態から軟化液状になる段階
で(第11図参照)、形状記憶合金製テープ2は、所望の
内径を有する螺旋捲回状態に縮径する。このように、液
状に溶解した段階で形状記憶合金製テープ2の内径を収
縮させることにより、第3図に示すような形状記憶合金
製簿板2の重なり部分から、空気および余分な樹脂が外
部へ排出される。これにより、所望の外径を有する積層
管を得ることができる。At the stage when the impregnated resin changes from a semi-cured state to a softened liquid (see FIG. 11), the shape memory alloy tape 2 is reduced to a spiral wound state having a desired inner diameter. In this way, by shrinking the inner diameter of the shape memory alloy tape 2 at the stage of dissolving it in a liquid state, air and excess resin are discharged from the overlapping portion of the shape memory alloy tape 2 as shown in FIG. Is discharged to Thereby, a laminated pipe having a desired outer diameter can be obtained.
さらに、排出された樹脂が硬化した後、形状記憶合金
製簿板2は常温にて伸張し、外径が拡径する。これによ
り、排出した樹脂が破壊される。したがって、樹脂の取
り除き作業が不要となる。Further, after the discharged resin is cured, the shape memory alloy book 2 is expanded at room temperature, and the outer diameter is increased. Thereby, the discharged resin is destroyed. Therefore, the work of removing the resin becomes unnecessary.
以上説明したように、本発明にかかる積層管の製造方
法においては、形状記憶合金製テープ2の使用によっ
て、外径寸法にばらつきがなく、寸法的に安定し、かつ
気泡が発生することがないので、品質の優れた積層管を
製造することができる。As described above, in the method for manufacturing a laminated tube according to the present invention, the use of the shape memory alloy tape 2 does not cause variations in the outer diameter, is dimensionally stable, and does not generate bubbles. Therefore, a laminated tube of excellent quality can be manufactured.
又、従来のようなセンターレス後加工工程をも省略す
ることができるとともに、テープの焼却、公害対策も不
要になる。In addition, the conventional centerless post-processing step can be omitted, and tape incineration and pollution control are not required.
又、上記形状記憶合金製テープ2は繰り返し使用でき
る為、従来方法によるテープ代と、上記形状記憶合金製
テープ2の償却費との差額分と、従来方法の上記各工程
に用する費用の分だけコストダウンが可能となる。In addition, since the shape memory alloy tape 2 can be used repeatedly, the difference between the tape cost according to the conventional method and the depreciation cost of the shape memory alloy tape 2 and the cost used for each of the above-described steps of the conventional method. Only the cost can be reduced.
このように、本発明にかかる積層管の製造方法におい
ては、従来のテープの代りに、プリプレグシートに含浸
された合成樹脂が液状に溶解する温度で所望の内径を有
する螺旋捲回状態に縮径する形状記憶合金製テープを用
いている。これにより、前記軟化液状時に形状記憶合金
の特性により、プリプレグ捲回層の外周を加圧すること
ができる。ここで、形状記憶合金製テープの内径は一定
に保たされる。したがって、積層管の肉厚が一定に保た
れる。As described above, in the method for manufacturing a laminated tube according to the present invention, instead of the conventional tape, the diameter is reduced to a spiral wound state having a desired inner diameter at a temperature at which the synthetic resin impregnated in the prepreg sheet dissolves in a liquid state. A shape memory alloy tape is used. Thereby, the outer periphery of the wound prepreg layer can be pressurized by the characteristics of the shape memory alloy at the time of the softening liquid. Here, the inner diameter of the shape memory alloy tape is kept constant. Therefore, the thickness of the laminated tube is kept constant.
また、プリプレグシート中の補強繊維量と合成樹脂の
割合が一定に保たれる。これにより、弾性の一定した均
質かつ軽量な積層管を安価に製造することができる。Further, the amount of the reinforcing fiber and the ratio of the synthetic resin in the prepreg sheet are kept constant. This makes it possible to manufacture a uniform and lightweight laminated tube with constant elasticity at low cost.
[発明の効果] 本発明にかかる積層管の製造方法においては、積層管
成形用芯金に補強繊維に合成樹脂を含浸させたプリプレ
グを層状に捲回し、前記プリプレグに含浸された合成樹
脂が液状に軟化する溶解温度で予め所望の内径になるよ
うに設定された形状記憶合金製テープを螺旋状に捲回し
て、前記プリプレグの捲回層の外周を覆い、以下、常法
にて焼成し、しかる後に前記形状記憶合金製テープと前
記積層管成形用芯金とを分離する。[Effect of the Invention] In the method for manufacturing a laminated pipe according to the present invention, a prepreg obtained by impregnating a synthetic resin into a reinforcing fiber is wound into a layered metal for forming a laminated pipe, and the synthetic resin impregnated in the prepreg is liquid. A shape memory alloy tape set in advance to have a desired inner diameter at a melting temperature to soften is spirally wound, covering the outer periphery of the wound layer of the prepreg, and thereafter, baked by a conventional method, Thereafter, the shape memory alloy tape and the core metal for forming a laminated tube are separated.
このように、前記プリプレグの捲回層の外周を、これ
に含浸された合成樹脂が液状に溶解する温度で所望の内
径を有する螺旋捲回状態に縮径する形状記憶合金製テー
プで、覆うことにより、弾性の一定した均質かつ軽量な
積層管を安価に製造することができる。As described above, the outer periphery of the wound layer of the prepreg is covered with a shape memory alloy tape which is reduced in diameter to a spiral wound state having a desired inner diameter at a temperature at which the synthetic resin impregnated therein dissolves in a liquid state. Thereby, a uniform and lightweight laminated tube with constant elasticity can be manufactured at low cost.
第1図、第2図は本発明に係る積層管の製造方法に用い
られる形状記憶合金製外型の成形工程と、形状記憶合金
製外型を夫々示す各正面図、第3図、第4図は第2図に
おけるA部、B部の各拡大断面図、第5図、第6図は同
製造方法において、積層管成形用芯金にプリプレグシー
トを捲回する状態を夫々示す各斜視図、第7図は積層管
成形用芯金と、内層、外層を示す横断面図、第8図は外
層に形状記憶合金製外型を被着した状態の正面図、第9
図は形状記憶合金製外型を分離除去した積層管の正面
図、第10図は第9図におけるC部の拡大断面図、第11図
は形状記憶合金製外型の収縮と、プリプレグ中の樹脂の
性状変化の関係を示すグラフである。 3……形状記憶合金製外型 4……内径用芯金 5、6……カーボンプリプレグシートFIGS. 1 and 2 are a front view showing a forming step of an outer die made of a shape memory alloy used in the method of manufacturing a laminated tube according to the present invention, and FIGS. FIG. 5 is an enlarged sectional view of part A and part B in FIG. 2. FIGS. 5 and 6 are perspective views respectively showing a state in which a prepreg sheet is wound around a core metal for forming a laminated tube in the same manufacturing method. FIG. 7 is a cross-sectional view showing a core for forming a laminated tube, and inner and outer layers. FIG. 8 is a front view showing a state where an outer die made of a shape memory alloy is applied to the outer layer.
Fig. 10 is a front view of a laminated tube from which a shape memory alloy outer mold is separated and removed, Fig. 10 is an enlarged sectional view of a portion C in Fig. 9, and Fig. 11 is shrinkage of the shape memory alloy outer mold, 4 is a graph showing a relationship between changes in resin properties. 3 ... Shape memory alloy outer mold 4 ... Inner core metal 5, 6 ... Carbon prepreg sheet
Claims (1)
含浸させたプリプレグを層状に捲回し、 前記プリプレグに含浸された合成樹脂が液状に軟化する
溶解温度で予め所望の内径になるように設定された形状
記憶合金製テープを螺旋状に捲回して、前記プリプレグ
の捲回層の外周を覆い、 以下、常法にて焼成し、しかる後に前記形状記憶合金製
テープと前記積層管成形用芯金とを分離すること、 を特徴すると積層管の製造方法。1. A prepreg obtained by impregnating a synthetic resin into a reinforcing fiber on a cored bar for forming a laminated pipe is wound in a layer form, and the prepreg has a predetermined inner diameter at a melting temperature at which the impregnated synthetic resin softens into a liquid state. The shape memory alloy tape set as described above is spirally wound to cover the outer periphery of the wound layer of the prepreg, and then fired in a conventional manner, and thereafter, the shape memory alloy tape and the laminated tube Separating the core metal for molding; and a method for manufacturing a laminated tube.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62167445A JP2577385B2 (en) | 1987-07-03 | 1987-07-03 | Manufacturing method of laminated tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62167445A JP2577385B2 (en) | 1987-07-03 | 1987-07-03 | Manufacturing method of laminated tube |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6411823A JPS6411823A (en) | 1989-01-17 |
JP2577385B2 true JP2577385B2 (en) | 1997-01-29 |
Family
ID=15849836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62167445A Expired - Lifetime JP2577385B2 (en) | 1987-07-03 | 1987-07-03 | Manufacturing method of laminated tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2577385B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6562764B2 (en) * | 2015-08-10 | 2019-08-21 | 株式会社ブリヂストン | Anti-vibration member and method for manufacturing anti-vibration member |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56144925A (en) * | 1980-04-15 | 1981-11-11 | Orimupitsuku:Kk | Manufacture of curved laminated tube |
JPS61283536A (en) * | 1985-06-10 | 1986-12-13 | Toyota Motor Corp | Molding for steering wheel core material |
JPS6228231A (en) * | 1985-07-30 | 1987-02-06 | Daiwa Seiko Inc | Manufacture of angling rod |
-
1987
- 1987-07-03 JP JP62167445A patent/JP2577385B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS6411823A (en) | 1989-01-17 |
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