JPH09150772A - Head pipe structure for two-wheeled or three-wheeled automobile - Google Patents
Head pipe structure for two-wheeled or three-wheeled automobileInfo
- Publication number
- JPH09150772A JPH09150772A JP31081995A JP31081995A JPH09150772A JP H09150772 A JPH09150772 A JP H09150772A JP 31081995 A JP31081995 A JP 31081995A JP 31081995 A JP31081995 A JP 31081995A JP H09150772 A JPH09150772 A JP H09150772A
- Authority
- JP
- Japan
- Prior art keywords
- fiber reinforced
- head pipe
- reinforced resin
- resin
- wheeled
- 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
Links
Landscapes
- Motorcycle And Bicycle Frame (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、二輪または三輪自
動車用ヘッドパイプ構造に関するものであり、より詳し
くは、ヘッドパイプの金属部分と周囲の繊維強化樹脂と
の接着力を向上させるための構造を有する二輪または三
輪自動車用ヘッドパイプ構造に関するものである。本発
明は、素材に繊維強化樹脂または樹脂を用い、金属をイ
ンサート成形する機器全般に用いられる。例えば繊維強
化樹脂製フレームの二輪電動スクーター等が挙げられ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a head pipe structure for a two-wheeled vehicle or a three-wheeled vehicle, and more particularly to a structure for improving the adhesive force between the metal portion of the head pipe and the surrounding fiber reinforced resin. The present invention relates to a two-wheeled or three-wheeled vehicle head pipe structure. INDUSTRIAL APPLICABILITY The present invention uses a fiber-reinforced resin or a resin as a raw material and is used in general for insert molding of metal. For example, a two-wheel electric scooter having a frame made of fiber reinforced resin can be used.
【0002】[0002]
【従来の技術】従来の二輪または三輪自動車用のヘッド
パイプ構造は、ヘッドパイプとフレームの固定における
接着力を向上させるために、ヘッドパイプに溶接された
パイプとヘッドパイプにプレートを溶接し、そのプレー
トの外側に繊維強化樹脂製フレームを接着し、さらに多
数のリベットを使用して固定してた。ヘッドパイプとフ
レームを固定したあとはリベットの頭が外部に出ている
ため、これを隠す様にフレームの面をパテ等を使用して
滑らかに仕上げ、塗装をほどこすかまたは、別体のカバ
ーを取り付けていた。2. Description of the Related Art A conventional head pipe structure for a two-wheeled vehicle or a three-wheeled vehicle has a head pipe welded to a pipe and a plate welded to the head pipe in order to improve the adhesive force in fixing the head pipe to the frame. A fiber reinforced resin frame was adhered to the outside of the plate and fixed using a large number of rivets. After fixing the head pipe and the frame, the head of the rivet is exposed to the outside, so to hide it, the surface of the frame is finished smoothly with putty, etc. and painted or a separate cover is attached. It was attached.
【0003】[0003]
【発明が解決しようとする課題】ヘッドパイプと車体を
固定する金具が外部から見えるため、これを隠すための
外板または作業を必要とした。このため外板の取り付け
に必要な新たな部品またはヘッドパイプと車体の固定後
の塗装、仕上げ等の組立工数増、部品追加による重量増
という課題がある。Since the metal fitting for fixing the head pipe and the vehicle body is visible from the outside, an outer plate or work is required to hide the metal fitting. Therefore, there is a problem that the number of assembling steps such as painting or finishing after fixing new parts or head pipe and vehicle body necessary for mounting the outer plate is increased, and weight is increased by adding the parts.
【0004】[0004]
【課題を解決するための手段】そこで、本発明者等はか
かる課題を解決すべく検討した結果、繊維強化樹脂から
なる二輪または三輪自動車のヘッドパイプ取付のための
補強構造として、取付部分の該繊維強化樹脂を貫通する
ように金属製パイプを一体に取付けしかも車体内部の該
パイプ周囲を軽量芯材で被覆しさらにその周囲を繊維強
化樹脂で被覆して閉断面とし、しかもこれら金属製パイ
プ、繊維強化樹脂、芯材を一体に接着させたヘッドパイ
プ取り付け構造において、金属製パイプの周囲に金属製
の板を取り付けて繊維強化樹脂との接着面積を大きく取
り、さらに該板に板金加工の一般的な方法であり板の面
剛性を向上させかつ軽量化を目的として行うバーリング
加工を金属製の板に施し、しかもこのバーリング加工に
よる板からの突起を利用して繊維強化樹脂との密着力を
向上させることによりヘッドパイプの構造を強化できる
ことを見出し本発明を完成した。すなわち、本発明の目
的は、強度と信頼性の高いヘッドパイプ構造を有する二
輪または三輪自動車を提供することにある。以下、本発
明を詳細に説明する。The inventors of the present invention have studied to solve the above problems, and as a result, as a reinforcing structure for mounting a head pipe of a two-wheeled or three-wheeled vehicle made of fiber reinforced resin, A metal pipe is integrally attached so as to pass through the fiber reinforced resin, and the inside of the vehicle body is covered with a lightweight core material, and the periphery is further covered with a fiber reinforced resin to form a closed cross section. In a head pipe mounting structure in which a fiber reinforced resin and a core material are integrally bonded, a metal plate is attached around the metal pipe to increase the adhesion area with the fiber reinforced resin, and further, the plate is generally processed by sheet metal processing. The metal plate is subjected to burring, which is a conventional method for improving the surface rigidity of the plate and reducing the weight, and the protrusion from the plate by this burring process. Thereby completing the heading present invention to be able to strengthen the structure of the head pipe by causing utilizing improve the adhesion between the fiber-reinforced resin. That is, an object of the present invention is to provide a two-wheeled or three-wheeled vehicle having a head pipe structure having high strength and reliability. Hereinafter, the present invention will be described in detail.
【0005】[0005]
【発明の実施の形態】本発明の構造メインフレームに用
いられる材料は、特に限定されない。例えば金属、樹
脂、セラミック、およびこれらを組み合わせた複合材料
が挙げられるが、中でも樹脂あるいは繊維強化プラスチ
ックスが好ましい。例えば熱硬化性樹脂を用いたもので
は、ハンドレイアップ法、スプレイアップ法、バルクモ
ールディング成形法(MBC法)、シートモールディン
グ成形法(SMC法)、レジンインジェクション法、レ
ジントランスファー成形法、反応射出成形法(RIM
法)、強化反応射出成形法(RRIM法)、構造用強化
反応射出成形法(SRIM法)、バッグ成形法、オート
クレーブ成形法あるいはフィラメントワインディング法
等により製造されたものが挙げられ、また、熱可塑性樹
脂を用いたものでは、射出成形法、射出圧縮成形法、プ
レス成形法、真空成形法、ブロー成形法、液圧成形法、
スタンピング成形法、サーモフォーミング法、フィラメ
ントワインディング法等により製造されたものが挙げら
れるが、好ましくは繊維強化材を金型内に載置し、反応
性樹脂を注入した後に硬化させるレジントランスファー
(RTM)成形法または構造用強化反応射出成形法(S
RIM法)により得られる繊維強化プラスチックスを用
いるのが、機械的強度が大きい点および工業的生産に適
している点で好ましい。BEST MODE FOR CARRYING OUT THE INVENTION The material used for the structural main frame of the present invention is not particularly limited. Examples thereof include metals, resins, ceramics, and composite materials obtained by combining these, and among them, resins or fiber-reinforced plastics are preferable. For example, when using a thermosetting resin, a hand lay-up method, a spray-up method, a bulk molding method (MBC method), a sheet molding method (SMC method), a resin injection method, a resin transfer molding method, a reaction injection molding method. Law (RIM
Method), a reinforced reaction injection molding method (RRIM method), a structural reinforced reaction injection molding method (SRIM method), a bag molding method, an autoclave molding method, a filament winding method, and the like. In the case of using resin, injection molding method, injection compression molding method, press molding method, vacuum molding method, blow molding method, hydraulic molding method,
Examples include those manufactured by a stamping molding method, a thermoforming method, a filament winding method, etc., but preferably a resin transfer (RTM) in which a fiber reinforcing material is placed in a mold and a reactive resin is injected and then cured. Molding method or structural reinforcement reaction injection molding method (S
It is preferable to use the fiber-reinforced plastics obtained by the RIM method) because of their high mechanical strength and suitability for industrial production.
【0006】使用される繊維強化材としては、特に限定
されるものではなく、通常繊維強化プラスチックスに使
用されるガラス繊維、炭素繊維、アラミド繊維等が好適
に使用される。樹脂としてはエポキシ樹脂、ビニルエス
テル樹脂、不飽和ポリエステル樹脂、ポリウレタン樹
脂、ポリウレア樹脂、ジシクロペンタジエン樹脂および
これらを適宜組み合わせた樹脂等の熱硬化性樹脂、ある
いはポリエチレン、ポリプロピレン、ポリ塩化ビニル、
ABS、PPS、ナイロン、ポリエーテルエーテルケト
ン等の熱可塑性樹脂等が挙げられ、特にRTM成形法、
SRIM成形法で繊維強化プラスチックスを製造する場
合には、エポキシ樹脂、ビニルエステル樹脂、不飽和ポ
リエステル樹脂あるいはこれらを主たる成分として含む
樹脂等を用いるのが好ましい。得られた繊維強化プラス
チックスにおける繊維含有率は、通常、10〜70体積
%、好ましくは15〜40体積%、より好ましくは20
〜30体積%の範囲が好ましい。The fiber reinforcing material used is not particularly limited, and glass fiber, carbon fiber, aramid fiber and the like which are usually used for fiber reinforced plastics are preferably used. As the resin, a thermosetting resin such as an epoxy resin, a vinyl ester resin, an unsaturated polyester resin, a polyurethane resin, a polyurea resin, a dicyclopentadiene resin and a resin in which these are appropriately combined, or polyethylene, polypropylene, polyvinyl chloride,
Examples thereof include thermoplastic resins such as ABS, PPS, nylon, and polyether ether ketone. Particularly, RTM molding method,
When the fiber reinforced plastics are manufactured by the SRIM molding method, it is preferable to use an epoxy resin, a vinyl ester resin, an unsaturated polyester resin, or a resin containing these as a main component. The fiber content of the obtained fiber reinforced plastics is usually 10 to 70% by volume, preferably 15 to 40% by volume, more preferably 20.
The range of ˜30% by volume is preferred.
【0007】[0007]
【実施例】以下、実施例により具体的かつ詳細に説明す
るのが、本発明はその要旨を越えない限り、下記の実施
例に限定されるものではない。図1は本発明を実施した
電動スクーターの外観の一例である。図2はI−I線矢
視の断面図であり、本発明を実施した部位である。ヘッ
ドパイプ1の周囲に繊維強化樹脂フレーム2との接着面
を十分確保できるようバーリング加工を施した金属板3
および4を取り付け、さらに上記3および4の間に上記
1を囲み込むように芯材としてのウレタンフォーム5を
取り付けた。次いで3,4,5の外周面を繊維強化樹脂
2で被覆して一体化した。EXAMPLES Hereinafter, the present invention will be described specifically and in detail with reference to Examples, but the present invention is not limited to the following Examples unless it exceeds the gist. FIG. 1 is an example of the appearance of an electric scooter embodying the present invention. FIG. 2 is a cross-sectional view taken along the line I-I of FIG. A metal plate 3 which has been subjected to burring processing so as to sufficiently secure an adhesive surface with the fiber reinforced resin frame 2 around the head pipe 1.
And 4 were attached, and further urethane foam 5 as a core material was attached between 3 and 4 so as to surround 1 above. Then, the outer peripheral surfaces of 3, 4, and 5 were covered with the fiber-reinforced resin 2 to be integrated.
【0008】[0008]
【発明の効果】本発明によれば、強度と信頼性の高いヘ
ッドパイプ構造を有する二輪または三輪自動車を有利に
得ることができる。According to the present invention, it is possible to advantageously obtain a two-wheeled or three-wheeled vehicle having a head pipe structure with high strength and reliability.
【図1】電動スクーター外観図[Figure 1] External view of electric scooter
【図2】断面図FIG. 2 is a sectional view
1 ヘッドパイプ 2 樹脂フレーム 3,4 金属板 5 ウレタンフォーム 1 Head pipe 2 Resin frame 3,4 Metal plate 5 Urethane foam
───────────────────────────────────────────────────── フロントページの続き (72)発明者 藤谷 学 神奈川県横浜市青葉区鴨志田町1000番地 三菱化学株式会社横浜総合研究所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Manabu Fujitani 1000 Kamoshida-cho, Aoba-ku, Yokohama-shi, Kanagawa Mitsubishi Chemical Corporation Yokohama Research Institute
Claims (1)
有する二輪または三輪自動車のヘッドパイプ取付のため
の補強構造として、取付部分の該繊維強化樹脂を貫通す
るように金属製パイプを一体に取付けしかも車体内部の
該パイプ周囲を軽量芯材で被覆しさらにその周囲を繊維
強化樹脂で被覆して閉断面とし、しかもこれら金属製パ
イプ、繊維強化樹脂、芯材が一体に接着しているヘッド
パイプ構造において、金属製パイプの周囲に金属製の板
を取り付けて繊維強化樹脂との接着面積を大きく取り、
さらに該板の部分にバーリングによって突起を設け、接
着力を向上させた二輪または三輪自動車用ヘッドパイプ
構造。1. As a reinforcing structure for mounting a head pipe of a two-wheeled or three-wheeled vehicle having a main frame made of fiber reinforced resin, a metal pipe is integrally attached so as to penetrate the fiber reinforced resin at a mounting portion and a vehicle body. In a head pipe structure in which the inside of the pipe is covered with a lightweight core material and the periphery thereof is further covered with a fiber reinforced resin to form a closed cross section, and these metal pipe, fiber reinforced resin and core material are integrally bonded By attaching a metal plate around the metal pipe, a large adhesion area with the fiber reinforced resin can be obtained,
Further, a head pipe structure for a two-wheeled vehicle or a three-wheeled vehicle in which a protrusion is provided on the plate portion by burring to improve the adhesive force.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31081995A JPH09150772A (en) | 1995-11-29 | 1995-11-29 | Head pipe structure for two-wheeled or three-wheeled automobile |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31081995A JPH09150772A (en) | 1995-11-29 | 1995-11-29 | Head pipe structure for two-wheeled or three-wheeled automobile |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH09150772A true JPH09150772A (en) | 1997-06-10 |
Family
ID=18009801
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP31081995A Pending JPH09150772A (en) | 1995-11-29 | 1995-11-29 | Head pipe structure for two-wheeled or three-wheeled automobile |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH09150772A (en) |
-
1995
- 1995-11-29 JP JP31081995A patent/JPH09150772A/en active Pending
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