JPH0426318Y2 - - Google Patents
Info
- Publication number
- JPH0426318Y2 JPH0426318Y2 JP10005384U JP10005384U JPH0426318Y2 JP H0426318 Y2 JPH0426318 Y2 JP H0426318Y2 JP 10005384 U JP10005384 U JP 10005384U JP 10005384 U JP10005384 U JP 10005384U JP H0426318 Y2 JPH0426318 Y2 JP H0426318Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- pipe material
- joint member
- angle
- tubular receiving
- 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
- 239000000463 material Substances 0.000 claims description 55
- 238000003466 welding Methods 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Description
【考案の詳細な説明】
産業上の利用分野
本考案は、自動二輪車、同三輪車等の車体フレ
ームに関し、特にパイプ材を連結して組立てたパ
イプフレームにおけるパイプ接合部の構造に関す
るものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to body frames for motorcycles, tricycles, etc., and particularly relates to the structure of pipe joints in pipe frames assembled by connecting pipe materials.
従来技術
自動二輪車の車体フレームは、主部材としてパ
イプを使用するパイプフレームと、プレス鋼板を
溶接接合する鋼板フレームに大別できる。後者の
鋼板フレームは、自動溶接も可能で生産性が高い
が、強度上の理由から軽量車に適用されている。
これに対して、前者のパイプフレームは、強度、
剛性を充分確保することが可能で、レジヤー、ス
ポーツ、競技用、ツーリング等の各種車両に広範
に用いられている。BACKGROUND OF THE INVENTION Body frames for motorcycles can be broadly classified into pipe frames that use pipes as their main members and steel plate frames that are made of pressed steel plates welded together. The latter type of steel frame can be automatically welded and is highly productive, but it is used in lightweight vehicles for reasons of strength.
On the other hand, the former pipe frame has strength,
It is possible to ensure sufficient rigidity and is widely used in various vehicles such as leisure, sports, competition, and touring vehicles.
パイプフレームにおける各パイプ材連結は従
来、鍛造品または鋳造品の継手部材を介して行わ
れることが多く、一般に、前記継手部材に突出し
た短円柱状の受け部片の外周面上にパイプ材を嵌
挿し、このパイプ材の端末部に沿つて該パイプ材
と継手部材とを互いに溶接しており、このような
継手構造が例えば実開昭54−99244号公報に示さ
れている。 Conventionally, each pipe material in a pipe frame is often connected through a forged or cast joint member, and generally, the pipe material is connected to the outer peripheral surface of a short cylindrical receiving piece that protrudes from the joint member. The pipe material and the joint member are fitted together and welded together along the end portion of the pipe material. Such a joint structure is shown in, for example, Japanese Utility Model Application No. 54-99244.
第３図にこの継手構造を示すが、同図において
０１はヘツドパイプで、このヘツドパイプ０１は
メインパイプ０２とダウンチユーブ０３とを連結
する継手部材としての役目も果たすものである。
ヘツドパイプ０１の後部上方に短円柱状の受け部
片０４が突設されており、この受け部片０４の外
周面を覆つてメインパイプ０２が嵌挿され、両者
はメインパイプ０２の端末部０５に沿つて互いに
溶接接合されている。ヘツドパイプ０１の後部下
方にも同様な受け部片０６が突設されており、こ
の受け部片０６上でダウンチユーブ０３の端末部
０７に沿つて両者が互いに溶接接合されている。 This joint structure is shown in FIG. 3, where 01 is a head pipe, and this head pipe 01 also serves as a joint member that connects the main pipe 02 and the down tube 03.
A short cylindrical receiving piece 04 is protruded above the rear part of the head pipe 01, and the main pipe 02 is fitted over the outer peripheral surface of the receiving piece 04, and both are connected to the terminal part 05 of the main pipe 02. They are welded together along the sides. A similar receiving piece 06 is provided protruding from the lower rear of the head pipe 01, and the down tubes 03 are welded together on this receiving piece 06 along the end portion 07 of the down tube 03.
考案が解決しようとする問題点
しかし、このように継手部材の短円柱状受け部
片上にパイプ材を嵌挿し、該パイプ材の端末に沿
つて継手部材とパイプ材とを互いに溶接する従来
の構造においては、パイプ材の端末切断の精度が
要求されるとともに、パイプ材の端末位置が、該
パイプ材の曲げによるパツクリングや伸び量のバ
ラツキまたは治具のセツトによつて変化するた
め、溶接が難しく、とくにロボツト等により自動
的に溶接する際に溶接性が悪かつた。Problems to be Solved by the Invention However, in this conventional structure, the pipe material is inserted onto the short cylindrical receiving part of the joint member, and the joint member and the pipe material are welded together along the end of the pipe material. Welding is difficult because precision is required to cut the end of the pipe material, and the position of the end of the pipe material changes due to packing due to bending of the pipe material, variation in the amount of elongation, or the setting of the jig. The weldability was particularly poor when automatically welded by a robot or the like.
また、パイプ材側と継手部材側とで熱容量に大
きな差があるため、熱容量の大きい継手部材側の
溶着が不安定になりがちであつた。 Further, since there is a large difference in heat capacity between the pipe material side and the joint member side, welding on the joint member side having a large heat capacity tends to be unstable.
さらに、上記のようなパイプ材の端末部に設け
た溶接部には応力集中が生じ易かつた。 Furthermore, stress concentration tends to occur at the welded portion provided at the end of the pipe material as described above.
問題点を解決するための手段および作用
従つて本考案においては、パイプ材を継手部材
を介して接合して組立てた自動二輪車等の車体フ
レームおいて、互いに角度をなしたパイプ材どう
しを接合する少なくとも１つの継手部材に各パイ
プ材を嵌挿する管状受け部をそれぞれ設け、これ
らの管状受け部に、対応する前記パイプ材の前記
角度を挟む側の周面部分に沿つて該パイプ材の軸
線方向に突出し該角度の外方へ向かつて開放した
パイプ材押え部を設け、該押え部の縁部に沿つて
前記継手部材とパイプ材とを互いに溶接する。Means and Effects for Solving the Problems Therefore, in the present invention, in a body frame of a motorcycle or the like assembled by joining pipe materials through a joint member, the pipe materials that are at an angle to each other are joined to each other. At least one joint member is provided with a tubular receiving portion into which each pipe material is inserted, and the axis of the pipe material is attached to each of the tubular receiving portions along the circumferential surface portion of the corresponding pipe material on both sides of the angle. A pipe material holding part is provided which protrudes in the direction and is open toward the outside of the angle, and the joint member and the pipe material are welded together along the edge of the holding part.
本考案によれば互いに角度をなす各パイプ材を
継手部材に組付ける時、各パイ材がそれぞれ外方
からその側面をパイプ材押え部につき当てられ、
該押え部により内方から支持されながら管状受け
部に嵌挿されるので、両パイプ材の嵌挿および位
置合せが容易であり、また該押え部により接続部
の強度も大きくなる。 According to the present invention, when assembling the pipe materials that form angles to each other into the joint member, each pipe material is brought into contact with its side surface from the outside against the pipe material presser,
Since it is inserted into the tubular receiving part while being supported from inside by the holding part, it is easy to fit and align both pipe materials, and the strength of the connection part is also increased by the holding part.
さらに、継手部材とパイプ材の溶接を、すべて
角度をなして取付けられた両パイプ材の外方から
行うことができるので、溶接作業が容易である。 Furthermore, since the joint member and the pipe material can be welded from the outside of both pipe materials, which are attached at an angle, welding work is easy.
パイプ材の端末は溶接とは無関係になるので、
パイプ材の端末切断に際して精度が要求されな
い。 The end of the pipe material has nothing to do with welding, so
Precision is not required when cutting the end of pipe material.
また、パイプ材と継手部材との溶接位置は継手
部材側のパイプ材押え部によつて規制され、前記
したような種々の原因でパイプ材が変形しバラツ
キが生じても、これによつて溶接位置が変化しな
いので、ロボツト溶接により精度の高い良好な溶
接を行うことができる。 In addition, the welding position between the pipe material and the joint member is regulated by the pipe material holding part on the joint member side. Since the position does not change, robot welding allows for highly accurate and good welding.
さらに、パイプ材の端末部ではなく中間部で溶
接が行われるので、継手部材とパイプ材との間の
熱容量の差が小さく、溶接性が向上する。 Furthermore, since welding is performed at the intermediate portion of the pipe material rather than at the end portion, the difference in heat capacity between the joint member and the pipe material is small, and weldability is improved.
しかも、パイプ材に沿つてその軸線方向に突出
した押え部の縁部に沿い溶接することにより、溶
接線長が長くなり、溶接部の応力集中を避けるこ
とができる。 Furthermore, by welding along the edge of the presser portion that protrudes in the axial direction of the pipe material, the length of the weld line becomes longer, and stress concentration at the welded portion can be avoided.
実施例
第１図および第２図は本考案を適用した自動二
輪車の車体フレームのヘツドパイプ部分を示す。
５はヘツドパイプでハンドル回転軸６を枢動自在
に支承している。このヘツドパイプ５はまた、互
いに角度をなすメインパイプ７とダウンチユーブ
８とを連結する継手部材となつており、これらの
パイプ材７，８を受け入れる管状受け部９，１０
が設けられている。管状受け部９はヘツドパイプ
５の後部上方に後方へ突出して設けられ、内側に
メインパイプ７が挿入されている。Embodiment FIGS. 1 and 2 show a head pipe portion of a body frame of a motorcycle to which the present invention is applied.
5 is a head pipe which pivotally supports a handle rotation shaft 6. This head pipe 5 also serves as a joint member that connects a main pipe 7 and a down tube 8 that form an angle with each other, and has tubular receiving parts 9 and 10 that receive these pipe materials 7 and 8.
is provided. The tubular receiving part 9 is provided above the rear part of the head pipe 5 so as to protrude rearward, and the main pipe 7 is inserted inside thereof.
この管状受け部材９には、メインパイプ７の内
方すなわちダウンチユーブ８との間に角度を挟む
側の周面部分７ａに沿つてメインパイプ７の軸線
方向に突出したパイプ材押え部３４が設けられて
いる。この押え部３４は前記角度の外方すなわち
ダウンチユーブ８とは反対側へ向つて開放してお
り、その縁部は、メインパイプ７の軸線に対して
傾斜した部分１１1，１１2とこれらを接続する前
記軸線に平行な部分１１3とを備えている。そし
てこれらの部分１１1，１２2，１３3によつて管
状受け部９の端面１１（第２図）が形成され、こ
の端面１１に沿つて管状受け部９とメインパイプ
７とが互いに溶接されている。 This tubular receiving member 9 is provided with a pipe material holding portion 34 that protrudes in the axial direction of the main pipe 7 along the circumferential surface portion 7a on the side sandwiching the angle between it and the down tube 8. It is being This holding part 34 is open toward the outside of the angle, that is, the side opposite to the down tube 8, and its edge is connected to the parts 11 1 and 11 2 that are inclined with respect to the axis of the main pipe 7. and a connecting portion 11 3 parallel to the axis. These portions 11 1 , 12 2 , and 13 3 form an end surface 11 (FIG. 2) of the tubular receiving portion 9, and the tubular receiving portion 9 and the main pipe 7 are welded to each other along this end surface 11. ing.
管状受け部１０はヘツドパイプ５の後部下方に
斜め下方に向つて突設され、前記管状受け部９と
同様にしてダウンチユーブ８が嵌挿溶着されてい
る。管状受け部１０にも、前記パイプ材押え部３
４と同様な、内方の周面部分８に沿つてダンウチ
ユーブ８の軸線方向に突出し外方へ向つて開放し
たパイプ材押え部３５が突出形成されており、傾
斜部分１２1，１２2および平行部分１２3から成
るその縁部により、管状受け部１０の端面が形成
されている。 The tubular receiving portion 10 is provided to protrude diagonally downward from the rear of the head pipe 5, and a down tube 8 is fitted and welded in the same manner as the tubular receiving portion 9. The pipe material holding part 3 is also attached to the tubular receiving part 10.
4, a pipe material holding part 35 which projects in the axial direction of the dungeon tube 8 and opens outward is formed protrudingly along the inner circumferential surface part 8, and the inclined parts 12 1 , 12 2 and the parallel Its edge, consisting of the section 12 3 , forms the end face of the tubular receptacle 10 .
メインパイプ７およびダウンチユーブ８はそれ
ぞれ第１図において上方および前下方から押え部
３４，３５に突き当てて沿わされ、この状態で押
え部３４，３５に案内されながら管状受け部９，
１０に嵌挿される。そしてメインパイプ７につい
ては上方から、ダウンチユーブ８については前下
方から、すなわち角度を挟んで配置されたパイプ
材７，８の外側から溶接棒を差し向けてそれぞれ
縁部１１1，１１2，１１3および縁部１２1，１２
２，１２3に沿つて溶接される。継手部材であるヘ
ツドパイプ５は鍛造品またはFCMW鋳鋼等の溶
接可能な鋳造品で形成するのが良い。 In FIG. 1, the main pipe 7 and the down tube 8 are brought into contact with the holding parts 34, 35 from above and from the front and below, respectively.
10 is inserted. Then, the welding rod is directed from above for the main pipe 7 and from the front and bottom for the down tube 8, that is, from the outside of the pipe materials 7 and 8 arranged at an angle, to the edges 11 1 , 11 2 , 11 respectively. 3 and edges 12 1 , 12
2 , 12 3 are welded along. The head pipe 5, which is a joint member, is preferably formed of a forged product or a weldable cast product such as FCMW cast steel.
考案の効果
以上の通り、本考案においては、パイプ材を継
手部材を介して接合して組立てた自動二輪車等の
車体フレームおいて、互いに角度をなしたパイプ
材どうしを接合する少なくとも１つの継手部材に
各パイプ材を嵌挿する管状受け部をそれぞれ設
け、これらの管状受け部に、対応する前記パイプ
材の前記角度を挟む側の周面部分に沿つて該パイ
プ材の軸線方向に突出し該角度の外方へ向かつて
開放したパイプ材押え部を設け、該押え部の縁部
に沿つて前記継手部材とパイプ材とを互いに溶接
したので、上記継手部分における互いに角度をな
した各パイプ材の管状受け部への嵌挿、パイプ材
どうしの位置合わせならびにパイプ材と継手部材
の溶接作業が容易となり、結局全体として、作業
性、溶接性がよく、ロボツト溶接に適し、かつ強
度に優れた自動二輪車等の車体フレームが得られ
る。Effects of the Invention As described above, in the present invention, in a vehicle body frame of a motorcycle or the like assembled by joining pipe materials via a joint member, at least one joint member is provided to join the pipe materials that are angled to each other. are provided with tubular receiving portions into which each pipe material is inserted, and each of the tubular receiving portions is provided with a tubular receiving portion that protrudes in the axial direction of the pipe material along the circumferential surface portion of the corresponding pipe material on both sides of the angle. A pipe material retaining portion that is open toward the outside is provided, and the joint member and the pipe material are welded to each other along the edge of the retaining portion. Fitting into the tubular receiver, positioning of pipe materials, and welding of pipe materials and joint members are facilitated, and the overall result is an automated system that has good workability and weldability, is suitable for robot welding, and has excellent strength. A vehicle body frame for a two-wheeled vehicle or the like is obtained.
第１図は本考案の一実施例におけるヘツドパイ
プ部分の側面図、第２図は同上面図、第３図は従
来の自動二輪車車体フレーム前部を示す側断面図
である。
５……ヘツドパイプ、６……ハンドル回転軸、
７……メインパイプ、８……ダウンチユーブ、
９，１０……管状受け部、１１，１２……端面、
３４，３５……押え部。
FIG. 1 is a side view of a head pipe portion in an embodiment of the present invention, FIG. 2 is a top view of the same, and FIG. 3 is a side sectional view showing the front part of a conventional motorcycle body frame. 5...Head pipe, 6...Handle rotation axis,
7... Main pipe, 8... Down tube,
9, 10... Tubular receiving part, 11, 12... End surface,
34, 35...presser section.
Claims (1)
自動二輪車の車体フレームにおいて、互いに角度
をなしたパイプ材どうしを接合する少なくとも１
つの継手部材に各パイプ材を嵌挿する管状受け部
をそれぞれ設け、これらの管状受け部に、対応す
る前記パイプ材の前記角度を挟む側の周面部分に
沿つて該パイプ材の軸線方向に突出し該角度の外
方へ向つて開放したパイプ材押え部を設け、該押
え部の縁部に沿つて前記継手部材とパイプ材とを
互いに溶接したことを特徴とする車体フレーム。 In a body frame of a motorcycle assembled by joining pipe materials via a joint member, at least one piece of pipe material that joins the pipe materials that are at an angle to each other is used.
Each of the two joint members is provided with a tubular receiving portion into which each pipe material is inserted, and a tube is attached to each of the tubular receiving portions in the axial direction of the corresponding pipe material along the circumferential surface portion of the corresponding pipe material on both sides of the angle. A vehicle body frame characterized in that a pipe material holding part that protrudes and opens outward of the angle is provided, and the joint member and the pipe material are welded to each other along an edge of the holding part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10005384U JPS6115685U (en) | 1984-07-04 | 1984-07-04 | motorcycle body frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10005384U JPS6115685U (en) | 1984-07-04 | 1984-07-04 | motorcycle body frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6115685U JPS6115685U (en) | 1986-01-29 |
| JPH0426318Y2 true JPH0426318Y2 (en) | 1992-06-24 |
Family
ID=30659523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10005384U Granted JPS6115685U (en) | 1984-07-04 | 1984-07-04 | motorcycle body frame |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6115685U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58216603A (en) * | 1982-06-08 | 1983-12-16 | 株式会社クボタ | Working vehicle with rolling control mechanism |
| JP4519632B2 (en) * | 2004-12-27 | 2010-08-04 | 川崎重工業株式会社 | Frame for motorcycle |
-
1984
- 1984-07-04 JP JP10005384U patent/JPS6115685U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6115685U (en) | 1986-01-29 |
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