JPH0649347B2 - Reinforced pipe and its manufacturing method - Google Patents
Reinforced pipe and its manufacturing methodInfo
- Publication number
- JPH0649347B2 JPH0649347B2 JP20221789A JP20221789A JPH0649347B2 JP H0649347 B2 JPH0649347 B2 JP H0649347B2 JP 20221789 A JP20221789 A JP 20221789A JP 20221789 A JP20221789 A JP 20221789A JP H0649347 B2 JPH0649347 B2 JP H0649347B2
- Authority
- JP
- Japan
- Prior art keywords
- honeycomb core
- core
- pipe
- cylindrical
- pipe material
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 21
- 239000011162 core material Substances 0.000 claims description 96
- 239000000463 material Substances 0.000 claims description 46
- 230000002093 peripheral effect Effects 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims 1
- 239000000853 adhesive Substances 0.000 description 12
- 230000001070 adhesive effect Effects 0.000 description 11
- 230000003014 reinforcing effect Effects 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 6
- 239000003365 glass fiber Substances 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、パイプ材をハニカムコアで補強した強化パイ
プとその製造方法に関する。Description: TECHNICAL FIELD The present invention relates to a reinforced pipe in which a pipe material is reinforced with a honeycomb core, and a manufacturing method thereof.
（従来の技術） 従来、強化パイプとしては、例えば、第８図に示すよう
に、パイプ材１００の内部に硬質ウレタン２００を充填
したものが知られている。(Prior Art) Conventionally, as a reinforced pipe, for example, as shown in FIG. 8, a pipe material 100 filled with hard urethane 200 is known.
（発明が解決しようとする課題） しかしながら、このような従来の強化パイプにあって
は、硬質ウレタン２００によって制振効果は得られるも
のの、この硬質ウレタンを用いたときの圧縮強度は約2.
2kg/cm２と低く、補強効果はあまり得られないという問
題があった。(Problems to be solved by the invention) However, in such a conventional reinforced pipe, although the damping effect is obtained by the hard urethane 200, the compressive strength when the hard urethane is used is about 2.
It was as low as 2kg / cm 2, and there was a problem that the reinforcing effect was not obtained so much.
また、硬質ウレタンは、比重が0.1 と大きいために、こ
れを補強材として用いると、重量が大きく増加するとい
う問題もあった。Further, since the specific gravity of hard urethane is as large as 0.1, there is a problem that the weight of the rigid urethane increases significantly when it is used as a reinforcing material.
尚、軽量で補強効果の高い補強部材として、例えば、特
開昭６１−２４９７４４号公報に記載されているハニカ
ムコアが知られているが、このハニカムコアは、従来、
平面の積層構造に適用されていて、この従来構造のまま
ではパイプ材の補強構造には適用することができなかっ
た。A honeycomb core disclosed in Japanese Patent Application Laid-Open No. 61-249744 is known as a lightweight reinforcing member having a high reinforcing effect.
It was applied to a flat laminated structure and could not be applied to the reinforcing structure of pipe material with this conventional structure as it is.
本発明は、上述のような従来の問題に着目して成された
もので、軽量で強度的に優れた強度パイプとその製造方
法を提供することを目的としている。The present invention has been made in view of the conventional problems as described above, and an object thereof is to provide a lightweight pipe which is excellent in strength and a manufacturing method thereof.
（課題を解決するための手段） 上述の目的を達成するために、本発明の請求項１記載の
強化パイプでは、横断面６角形状のセルが連続的に配列
され両端に各セルの開口部を有するハニカムコアの一端
側を内周面として芯材に当接させると共に、他端側を円
弧状に展開させて外周面とした円柱状の円柱ハニカムコ
アが形成され、該円柱ハニカムコアが、円柱ハニカムコ
アの前記外周面をパイプ材の内周面に当接させてパイプ
材に充填されている手段とした。(Means for Solving the Problems) In order to achieve the above-mentioned object, in the reinforced pipe according to claim 1 of the present invention, cells having a hexagonal cross section are continuously arranged and the openings of each cell are provided at both ends. While making one end side of the honeycomb core having an inner peripheral surface contact the core material, the other end side is expanded into an arc shape to form a columnar cylindrical honeycomb core, and the cylindrical honeycomb core is formed. The outer peripheral surface of the cylindrical honeycomb core was brought into contact with the inner peripheral surface of the pipe material to form a means for filling the pipe material.
尚、この円柱ハニカムコアの外周面とパイプ材の内周面
との当接及びハニカムコアの内周面と芯材との当接は、
ただ単に当接させるだけでもよいし、また、接着剤で接
着して当接させてもよいし、さらに、締結部材等を用い
て、両者を固着状態として当接させてもよい。The contact between the outer peripheral surface of the cylindrical honeycomb core and the inner peripheral surface of the pipe material and the contact between the inner peripheral surface of the honeycomb core and the core material are
They may simply be brought into contact with each other, or they may be brought into contact with each other by being adhered with an adhesive agent, and further, they may be brought into contact with each other in a fixed state by using a fastening member or the like.
又、請求項２記載の強化パイプの製造方法では、横断面
６角形状のセルが連続的に配列されたハニカムコアの一
端側を芯材に当接させると共に、他端側を円弧状に展開
させて形成された円柱状の円柱ハニカムコアを、パイプ
材の内部に挿入し、円柱ハニカムコア外周とパイプ材内
周を接着させる手段とした。Further, in the method for manufacturing a reinforced pipe according to claim 2, one end side of a honeycomb core in which cells having a hexagonal cross section are continuously arranged is brought into contact with a core material, and the other end side is expanded in an arc shape. The columnar cylindrical honeycomb core thus formed was inserted into the pipe material to bond the outer circumference of the cylindrical honeycomb core and the inner circumference of the pipe material.
又、請求項３記載の強化パイプの製造方法では、横断面
６角形状のセルが連続的に配列されたハニカムコアの一
端側を芯材に当接させると共に、他端側を円弧状に展開
させて形成された円柱状の円柱ハニカムコアの外周に、
表皮部材を巻き付けて、パイプ材を形成する手段とし
た。In the method for manufacturing a reinforced pipe according to claim 3, one end side of a honeycomb core in which cells having a hexagonal cross section are continuously arranged is brought into contact with a core material, and the other end side is expanded in an arc shape. On the outer periphery of the cylindrical honeycomb core of the column shape formed by
The skin member was wound to form a pipe material.
（作 用） 請求項１記載の強化パイプは、パイプ材の補強部として
円柱状の円柱ハニカムコアが用いられ、かつ、この円柱
ハニカムコアの中心にはハニカムコアの内周面に当接し
て芯材が設けられている。そして、この円柱ハニカムコ
アは、セルが芯材を中心に放射状に配列されているた
め、通常のハニカムと同様に高い補強作用を成す。(Operation) In the reinforced pipe according to claim 1, a columnar cylindrical honeycomb core is used as a reinforcing portion of the pipe material, and the center of the cylindrical honeycomb core is in contact with the inner peripheral surface of the honeycomb core to form a core. Material is provided. Further, in this cylindrical honeycomb core, the cells are arranged radially around the core material, and therefore, the columnar honeycomb core has a high reinforcing effect similarly to a normal honeycomb.
請求項２記載の製造方法では、パイプ材と円柱ハニカム
コアを別々に用意し、この円柱ハニカムコアをパイプ材
の内部に挿入して、円柱ハニカムコアの外周とパイプ材
の内周とを接着して、請求項１の強化パイプを製造す
る。In the manufacturing method according to claim 2, the pipe material and the cylindrical honeycomb core are separately prepared, and the cylindrical honeycomb core is inserted into the pipe material to bond the outer circumference of the cylindrical honeycomb core and the inner circumference of the pipe material. Thus, the reinforced pipe according to claim 1 is manufactured.
この場合、円柱ハニカムコアのパイプ材への充填作業が
簡単に行なえる。In this case, the work of filling the cylindrical honeycomb core into the pipe material can be easily performed.
請求項３記載の製造方法では、円柱ハニカムコアの外周
に表皮部材を巻き付け、この表皮部材によりパイプ材が
形成される。このように、表皮部材を巻き付けるため、
パイプ材となる表皮部材とハニカムコアとが確実に密接
する。In the manufacturing method according to the third aspect, the skin member is wound around the outer periphery of the cylindrical honeycomb core, and the pipe member is formed by the skin member. In this way, to wrap the skin member,
The skin member serving as the pipe material and the honeycomb core are surely brought into close contact with each other.
（実施例） 以下、本発明の実施例を図面により詳述する。(Examples) Hereinafter, examples of the present invention will be described in detail with reference to the drawings.
まず、第１図及び第２図により、請求項１記載の強化パ
イプに対応した第１実施例につて説明する。First, a first embodiment corresponding to the reinforced pipe according to claim 1 will be described with reference to FIGS. 1 and 2.
本実施例の強化パイプＡは、図示のようにパイプ材１の
内部に、円柱ハニカムコア２が充填された構造となって
いる。The reinforced pipe A of the present embodiment has a structure in which a cylindrical honeycomb core 2 is filled inside a pipe material 1 as shown in the figure.
前記パイプ材１としては、アルミニュウム，ステンレ
ス，スチール等の金属や、繊維強化プラスチック（ＦＲ
Ｐ），ポリカ−ボネート等の合成樹脂等を材質としたも
のを用いることができ、用途に応じてその表面に塗装等
の装飾加工を施すことになる。Examples of the pipe material 1 include metals such as aluminum, stainless steel and steel, and fiber reinforced plastics (FR
It is possible to use a resin made of synthetic resin such as P) or polycarbonate, and the surface thereof is subjected to decoration processing such as painting depending on the application.
前記円柱ハニカムコア２は、前記パイプ材１の内径に対
応した外径で円柱状に形成されている。即ち、前記円柱
ハニカムコア２は、横断面６角形状のセル２ａの一端側
を芯材としての芯棒２６に当接させると共に、他端側が
円弧状となるように展開させ、かつ、このセル２ａを、
芯棒２６を中心として放射状及び芯棒２６の軸方向に配
列させて形成されている。つまり、第１図に示すよう
に、この円柱ハニカムコア２は、外周側でセル２ａが６
角径の断面形状であり、かつ、外側端が円弧を描くよう
に展開され、内周側ではセル２ａが展開せずにつぶされ
た形状となっている。The cylindrical honeycomb core 2 is formed in a cylindrical shape with an outer diameter corresponding to the inner diameter of the pipe material 1. That is, in the cylindrical honeycomb core 2, one end side of a cell 2a having a hexagonal cross section is brought into contact with a core rod 26 serving as a core material, and the other end side is expanded into an arc shape, and the cell is formed. 2a
The core rods 26 are formed radially and arranged in the axial direction of the core rods 26. That is, as shown in FIG. 1, this cylindrical honeycomb core 2 has six cells 2a on the outer peripheral side.
The cross-sectional shape is a square diameter, and the outer end is expanded so as to draw an arc, and the cell 2a is crushed without expanding on the inner peripheral side.
尚、この円柱ハニカムコア２としては、紙やアルミニュ
ウム等の金属やアラミド等の合成樹脂を素材として使用
できる。また、ハニカムコアは、内径の大きさにより強
度が異なるが、一般的に圧縮強度がペーパハニカムで6.
6kg/cm２、アルミハニカムでは134kg/cm２（セルサイズ
1/8”，箔厚0.003”）と非常に高い。For the cylindrical honeycomb core 2, a metal such as paper or aluminum, or a synthetic resin such as aramid can be used as a material. Also, the honeycomb core has different strength depending on the size of the inner diameter, but generally the compressive strength is 6.
6 kg / cm 2, the aluminum honeycomb 134 kg / cm 2 (cell size
Very high (1/8 ", foil thickness 0.003").
そして、この円柱ハニカムコア２は、その外周面２１が
パイプ材１の内周面１１に密接するように、パイプ材１
の内部に充填されており、この場合、円柱ハニカムコア
２とパイプ材１との間に接着部材３が介在されて、両者
の密接が確実に行なえるようにされている。The cylindrical honeycomb core 2 has a pipe material 1 so that the outer peripheral surface 21 is in close contact with the inner peripheral surface 11 of the pipe material 1.
In this case, the adhesive member 3 is interposed between the cylindrical honeycomb core 2 and the pipe material 1 so that they can be surely brought into close contact with each other.
次に実施例の作用を説明する。Next, the operation of the embodiment will be described.
この強化パイプＡでは、円柱ハニカムコア２のセル２ａ
の方向が中心部の芯棒２６から放射状に配列されている
ため、このセル２ａがパイプ材１の半径方向に向かうリ
ブとなって、該パイプ材１を内側から支持することにな
る。In this reinforced pipe A, the cells 2a of the cylindrical honeycomb core 2 are
Since the direction of is radially arranged from the core rod 26 at the center, the cells 2a serve as ribs extending in the radial direction of the pipe material 1 and support the pipe material 1 from the inside.
又、パイプ材１の内周面１１と円柱ハニカムコア２の外
周面２１とが密接しているので、パイプ材１に加わる外
力を確実に支持できると共に、中心部に設けた芯棒２６
によって円柱ハニカムコア２０自身の踏ん張り力が得ら
れる。Further, since the inner peripheral surface 11 of the pipe material 1 and the outer peripheral surface 21 of the cylindrical honeycomb core 2 are in close contact with each other, the external force applied to the pipe material 1 can be reliably supported, and the core rod 26 provided in the central portion is provided.
Thus, the tension force of the cylindrical honeycomb core 20 itself can be obtained.
以上のように、本実施例では、円柱ハニカムコア２を補
強部材としているので、軽量でありながら、強度的に優
れた強化パイプＡを得ることができる。尚、この強化パ
イプＡは、自動車，自転車の車体構造を形成するパイプ
フレームとして用いたり、また、自動車のプロペラシャ
フト等として用いることができる。As described above, in the present embodiment, since the cylindrical honeycomb core 2 is used as the reinforcing member, it is possible to obtain the reinforced pipe A which is lightweight and excellent in strength. The reinforced pipe A can be used as a pipe frame forming a vehicle body structure of an automobile or a bicycle, or can be used as a propeller shaft of an automobile.
また、本強化パイプＡでは（外径２５φ，厚さ１mm）、
パイプ材１をアルミパイプとし、円柱ハニカムコア２を
アルミハニカムとして曲げ強度実験を行なったところ、
アルミパイプのみの曲げ強度は130kg/cm２であったのに
対し、ペーパハニカムを充填した場合には 170kg/cm2と
いう結果が得られた。In addition, in this reinforced pipe A (outer diameter 25φ, thickness 1 mm),
When a bending strength experiment was conducted using the pipe material 1 as an aluminum pipe and the cylindrical honeycomb core 2 as an aluminum honeycomb,
The bending strength of the aluminum pipe alone was 130 kg / cm 2 , whereas the result of 170 kg / cm 2 was obtained when the paper honeycomb was filled.
又、円柱ハニカムコア２は、その比重が小さい（アルミ
ハニカム0.024 ペーパハニカム0.025 ）ため、重量の増
加を抑えながら強度を向上することができる。Further, since the cylindrical honeycomb core 2 has a small specific gravity (aluminum honeycomb 0.024 and paper honeycomb 0.025), the strength can be improved while suppressing an increase in weight.
次に、第３図〜第５図により、請求項２の製造方法によ
る前記強化パイプＡの製造方法を説明する。Next, a method of manufacturing the reinforced pipe A according to the manufacturing method of claim 2 will be described with reference to FIGS. 3 to 5.
この実施例は、第５図に示すように、既成のパイプ材１
の内部に円柱ハニカムコア２を挿入させる製造方法であ
って、その製造方法を順に追って説明する。In this embodiment, as shown in FIG.
A manufacturing method of inserting the cylindrical honeycomb core 2 into the inside of the structure will be described in order.
第３図（イ）に示すように、未展張のハニカムブロック
２２を用意するもので、このとき、展張方向の幅Ｗと厚
さＨとがパイプ材１の内径に対応し、又、非張方向の長
さＬがパイプ材１の長さに対応している。As shown in FIG. 3 (a), an unexpanded honeycomb block 22 is prepared. At this time, the width W and the thickness H in the expanding direction correspond to the inner diameter of the pipe material 1, and the unexpanded honeycomb block 22 is not expanded. The length L in the direction corresponds to the length of the pipe material 1.
次に、第３図（ロ）に示すように、ハニカムブロック２
２の展張方向の両端面に接着剤２３，２３を付すると共
に、片面にフィルムシート２４を接着する。Next, as shown in FIG. 3B, the honeycomb block 2
Adhesives 23, 23 are applied to both end surfaces of the sheet 2 in the extending direction, and a film sheet 24 is adhered to one surface.
次に、第３図（ハ）に示すように、前記ハニカムブロッ
ク２２を、フィルムシート２４面が内側になるように丸
めながら、両端面同士を接着剤２３で接着して円柱状の
円柱ハニカムコア２を成形し、次に、中央の中空穴２５
に芯材としての芯棒２６を挿入する。Next, as shown in FIG. 3 (c), the honeycomb block 22 is rolled so that the surface of the film sheet 24 is on the inside, and both end surfaces thereof are adhered with an adhesive 23 to form a cylindrical columnar honeycomb core. 2 and then the central hollow hole 25
The core rod 26 as a core material is inserted into the.
尚、この芯棒２６は、第３図（ロ）の状態でフィルムシ
ート２４上に載置しておき、この芯棒２６を包み込むよ
うにハニカムブロック２２を丸めていくことによっても
円柱ハニカムコア２の中心に設けることができる。The core rod 26 is placed on the film sheet 24 in the state shown in FIG. 3B, and the honeycomb block 22 is rolled so as to surround the core rod 26. It can be provided at the center of.
次に上述のようにして製造した円柱ハニカムコア２の外
周面に接着部材３を巻き付けるもので、この場合、例え
ば、第４図に示すように、面材としてのガラス繊維３０
を繰り出しながら接着剤としてのエポキシ樹脂３１に通
して、このエポキシ樹脂３１をガラス繊維３０に含浸さ
せこれを円柱ハニカムコア２に巻き付けるようにしてい
る。尚、面材として、カーボン繊維，アラミド繊維，ポ
リエステル不織布等を用いたり、又、接着剤として、不
飽和ポリエステルとウレタンとのブレンド品等を用いて
もよい。Next, the adhesive member 3 is wound around the outer peripheral surface of the cylindrical honeycomb core 2 manufactured as described above. In this case, for example, as shown in FIG.
The glass fiber 30 is impregnated with the epoxy resin 31 as an adhesive while the glass fiber 30 is wound around the cylindrical honeycomb core 2. Note that carbon fiber, aramid fiber, polyester non-woven fabric, or the like may be used as the face material, or a blended product of unsaturated polyester and urethane, or the like may be used as the adhesive.
そして、上述の接着部材３が巻き付けられた円柱ハニカ
ムコア２を、第５図のようにパイプ材１の内部に挿入す
れば、円柱ハニカムコア２の外周面とパイプ材１の内周
面とが接着されて強化パイプＡが製造される。Then, when the cylindrical honeycomb core 2 around which the adhesive member 3 is wound is inserted into the pipe material 1 as shown in FIG. 5, the outer peripheral surface of the cylindrical honeycomb core 2 and the inner peripheral surface of the pipe material 1 are separated from each other. The reinforced pipe A is manufactured by being bonded.
従って、この製造方法では、既成のパイプ材１に円柱ハ
ニカムコア２を挿入という簡単な作業で強化パイプを製
造することができる。Therefore, in this manufacturing method, the reinforced pipe can be manufactured by a simple operation of inserting the cylindrical honeycomb core 2 into the existing pipe material 1.
次に第６図及び第７図により、請求項３に対応した強化
パイプの製造方法を説明する。Next, a method of manufacturing a reinforced pipe according to claim 3 will be described with reference to FIGS. 6 and 7.
この実施例では、前記第２実施例と同様の工程で円柱ハ
ニカムコア２を製造し、この円柱ハニカムコア２の外周
に表皮部材４をパイプ状に巻き付ける製造方法となって
いる。In this embodiment, a cylindrical honeycomb core 2 is manufactured by the same process as in the second embodiment, and the skin member 4 is wound around the outer circumference of the cylindrical honeycomb core 2 in a pipe shape.
前記表皮部材４としては、繊維強化プラスチック（ＦＲ
Ｐ）が用いられ、第６図に示すように、ガラス繊維や合
成樹脂繊維による不織布４０に熱硬化性樹脂による接着
剤４１を含浸させ、これを円柱ハニカムコア２の外周面
に隙間なく密に巻き付けていく。As the skin member 4, a fiber reinforced plastic (FR
P) is used, as shown in FIG. 6, a non-woven fabric 40 made of glass fiber or synthetic resin fiber is impregnated with an adhesive 41 made of a thermosetting resin, and this is densely packed on the outer peripheral surface of the cylindrical honeycomb core 2 without any gaps. Wrap it around.
そして、上述のようにして表皮部材４が巻き付けられた
円柱ハニカムコア２を第７図に示すように、型５，５内
に設置して加熱キュアし、硬化後に脱型するものであ
る。Then, as shown in FIG. 7, the cylindrical honeycomb core 2 around which the skin member 4 is wound as described above is placed in the molds 5 and 5, heat-cured, and then demolded after curing.
従って、この実施例の製造方法では、製品となった時に
は、表皮部材４がパイプ材１となり、また、表皮部材４
を円柱ハニカムコア２に巻き付けるため、パイプ材１と
円柱ハニカムコア２との密接が確実に行なえる。Therefore, according to the manufacturing method of this embodiment, the skin member 4 becomes the pipe material 1 when the product is manufactured, and the skin member 4 is used.
Is wound around the cylindrical honeycomb core 2, the pipe material 1 and the cylindrical honeycomb core 2 can be reliably brought into close contact with each other.
又、型締めするので、表皮部材４の表面が平滑化して凹
凸ムラを防止出来るし、製品を直線形状に保持させるこ
とができる。Further, since the mold is clamped, the surface of the skin member 4 can be smoothed to prevent unevenness of the surface, and the product can be held in a linear shape.
以上、実施例について説明したが、本発明はこれらの実
施例を限定されるものではなく、請求の範囲を逸脱しな
い範囲での変更は可能である。Although the embodiments have been described above, the present invention is not limited to these embodiments, and modifications can be made without departing from the scope of the claims.
例えば、実施例では、円柱ハニカムコアとパイプ材との
接着を、接着剤を含浸させた繊維による接着部材を用い
た例を示したが、円柱ハニカムコアの外周に接着剤を直
接塗布して接着するようにしてもより。For example, in the example, an example in which an adhesive member made of fibers impregnated with an adhesive is used to bond the cylindrical honeycomb core and the pipe material, but the adhesive is directly applied to the outer periphery of the cylindrical honeycomb core for adhesion. Even if you do.
また、実施例では、未展張のハニカムコアブロックを丸
めるようにして展張して、円柱ハニカムコアを形成する
例を示したが、展張済みのハニカムコアブロックを芯材
の外周に巻き付けるようにしてもよい。尚、この場合、
芯材の大きさが多少大きめになる。Further, in the example, an example in which an unexpanded honeycomb core block is expanded and rolled to form a cylindrical honeycomb core is shown, but the expanded honeycomb core block may be wound around the outer periphery of the core material. Good. In this case,
The size of the core material becomes slightly larger.
また、円柱ハニカムコアの中心にハーネスを通すように
すれば、強化パイプの内部にハーネスを配線することが
できるし、このハーネスを芯材として兼用できる。If the harness is passed through the center of the cylindrical honeycomb core, the harness can be wired inside the reinforced pipe, and the harness can also be used as the core material.
（発明の効果） 以上説明してきたように、本発明の強化パイプでは、円
柱ハニカムコアを補強部材としているため、軽量で、か
つ、強度的に優れているという効果が得られる。(Effects of the Invention) As described above, in the reinforced pipe of the present invention, since the columnar honeycomb core is used as the reinforcing member, the effect of being lightweight and excellent in strength can be obtained.
また、請求項２及び３記載の製造方法では、上述のよう
な効果を有する新規な強化パイプを提供できるという基
本効果を有している。In addition, the manufacturing method according to claims 2 and 3 has a basic effect that a new reinforced pipe having the above-described effects can be provided.
さらに、請求項２記載の製造方法では、ハニカムコアを
パイプ材の内部に挿入する方法であるため、その製造が
簡単に行なえるという効果を有する。Further, in the manufacturing method according to the second aspect, since the honeycomb core is inserted into the pipe material, there is an effect that the manufacturing can be easily performed.
また、請求項３記載の製造方法では、表皮部材をハニカ
ムコアに巻き付ける方法であるため、表皮部材とハニカ
ムコアとの密接が確実に行なえるという効果が得られ
る。Further, in the manufacturing method according to the third aspect, since the skin member is wound around the honeycomb core, there is an effect that the skin member and the honeycomb core can be surely brought into close contact with each other.
第１図は第１実施例の強化パイプを示す切欠斜視図、第
２図は該強化パイプの断面図、第３図〜第５図は請求項
２に対応した実施例の製造方法を示す説明図、第６図及
び第７図は請求項３に対応した実施例の製造方法を示す
説明図、第８図は従来技術の説明図である。 Ａ……強化パイプ １……パイプ材 ２……円柱ハニカムコア ２ａ……セル １１……（パイプ材の）内周面 ２１……（ハニカムコアの）外周面 ２６……芯棒（芯材） ４……表皮部材FIG. 1 is a cutaway perspective view showing a reinforced pipe of the first embodiment, FIG. 2 is a sectional view of the reinforced pipe, and FIGS. 3 to 5 are explanations showing a manufacturing method of an embodiment corresponding to claim 2. FIGS. 6, 6 and 7 are explanatory views showing a manufacturing method of an embodiment corresponding to claim 3, and FIG. 8 is an explanatory view of a conventional technique. A: Reinforced pipe 1 ... Pipe material 2 ... Cylindrical honeycomb core 2a ... Cell 11 ... (Pipe material) inner peripheral surface 21 ... (Honeycomb core) outer peripheral surface 26 ... Core rod (core material) 4 ... Skin material
Claims (3)
両端に各セルの開口部を有するハニカムコアの一端側を
内周面として芯材に当接させると共に、他端側を円弧状
に展開させて外周面とした円柱状の円柱ハニカムコアが
形成され、 該円柱ハニカムコアが、円柱ハニカムコアの前記外周面
をパイプ材の内周面に当接させてパイプ材に充填されて
いることを特徴とする強化パイプ。1. A honeycomb core having hexagonal cross-section cells arranged continuously and having openings of each cell at both ends is abutted against a core material with one end side being an inner peripheral surface, and the other end side is a circle. A columnar cylindrical honeycomb core is formed which is expanded in an arc shape and has an outer peripheral surface, and the cylindrical honeycomb core is filled in the pipe material by bringing the outer peripheral surface of the cylindrical honeycomb core into contact with the inner peripheral surface of the pipe material. A reinforced pipe characterized by being
たハニカムコアの一端側を芯材に当接させると共に、他
端側を円弧状に展開させて形成された円柱状の円柱ハニ
カムコアを、パイプ材の内部に挿入し、円柱ハニカムコ
ア外周とパイプ材内周を接着させることを特徴とする強
化パイプの製造方法。2. A cylindrical column formed by contacting one end side of a honeycomb core in which cells having a hexagonal cross section are continuously arranged with a core material and expanding the other end side into an arc shape. A method for manufacturing a reinforced pipe, characterized in that a honeycomb core is inserted inside a pipe material, and an outer circumference of a cylindrical honeycomb core and an inner circumference of the pipe material are adhered to each other.
たハニカムコアの一端側を芯材に当接させると共に、他
端側を円弧状に展開させて形成された円柱状の円柱ハニ
カムコアの外周に、表皮部材を巻き付けて、パイプ材を
形成することを特徴とする強化パイプの製造方法。3. A cylindrical column formed by contacting one end side of a honeycomb core in which cells having a hexagonal cross section are continuously arranged with a core material and expanding the other end side into an arc shape. A method for manufacturing a reinforced pipe, comprising forming a pipe material by winding a skin member around an outer periphery of a honeycomb core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20221789A JPH0649347B2 (en) | 1989-08-03 | 1989-08-03 | Reinforced pipe and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20221789A JPH0649347B2 (en) | 1989-08-03 | 1989-08-03 | Reinforced pipe and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0365334A JPH0365334A (en) | 1991-03-20 |
| JPH0649347B2 true JPH0649347B2 (en) | 1994-06-29 |
Family
ID=16453900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20221789A Expired - Lifetime JPH0649347B2 (en) | 1989-08-03 | 1989-08-03 | Reinforced pipe and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0649347B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022198269A1 (en) * | 2021-03-23 | 2022-09-29 | Cmte Development Limited | A carbon fibre rock bolt |
-
1989
- 1989-08-03 JP JP20221789A patent/JPH0649347B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0365334A (en) | 1991-03-20 |
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