JPH05178252A - Car body frame of motorcycle - Google Patents

Car body frame of motorcycle

Info

Publication number
JPH05178252A
JPH05178252A JP4165566A JP16556692A JPH05178252A JP H05178252 A JPH05178252 A JP H05178252A JP 4165566 A JP4165566 A JP 4165566A JP 16556692 A JP16556692 A JP 16556692A JP H05178252 A JPH05178252 A JP H05178252A
Authority
JP
Japan
Prior art keywords
flat
pipe
flat pipe
reinforcing ribs
head pipe
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.)
Granted
Application number
JP4165566A
Other languages
Japanese (ja)
Other versions
JPH0794233B2 (en
Inventor
Hiroshi Komatsubara
博 小松原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP4165566A priority Critical patent/JPH0794233B2/en
Publication of JPH05178252A publication Critical patent/JPH05178252A/en
Publication of JPH0794233B2 publication Critical patent/JPH0794233B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62KCYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00Cycle frames
    • B62K19/18Joints between frame members
    • B62K19/28Means for strengthening joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62KCYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K11/00Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
    • B62K11/02Frames
    • B62K11/04Frames characterised by the engine being between front and rear wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62KCYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00Cycle frames
    • B62K19/02Cycle frames characterised by material or cross-section of frame members
    • B62K19/04Cycle frames characterised by material or cross-section of frame members the material being wholly or mainly metallic, e.g. of high elasticity
    • B62K19/06Cycle frames characterised by material or cross-section of frame members the material being wholly or mainly metallic, e.g. of high elasticity tubular

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Abstract

PURPOSE:To improve rigidity by forming the left and right tank rails connected with a head pipe from each long flat pipe consisting of an Al extrusion member, and dividing the inside of the flat pipe to a plurality of divisions by the reinforcing ribs formed in the longitudinal direction. CONSTITUTION:Flat pipes 14 which are formed to each long flat form and consist of Al extrusion members are used for the left and right tank rails 5 in pair which are continuously installed on the head pipe 1 of a steering and extend rearward from the head pipe 1 and aslantly downward, and these flat pipes 14 are arranged so as to be exposed on both the side surfaces of a car body. Inside the flat pipe 14, upper and lower reinforcing ribs 5a and 5b having the surfaces crossing at right angle with an outside wall (o) and an inside wall 1 are integrally installed, and the inside of the flat pipe 14 is divided into three divisions X, Y, and Z each of which is long and has a nearly hollow rectangular shaped section. Further, a thin part (n) is formed in the longitudinal direction at a part of the, reinforcing ribs 5a and 5b, and the mechanical strength is weakened at a part, and the bending work of the tank rail 5 is facilitated.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、自動二輪車の車体フレ
ームに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body frame of a motorcycle.

【0002】[0002]

【従来の技術】従来、自動二輪車の車体フレームとし
て、エンジンをゆりかごに載せるような形をしたダブル
クレードル型フレーム及びセミダブルクレードル型フレ
ームが、強度、剛性が比較的高いことから、多用されて
いる。自動二輪車においては、地面からの車体の高さ、
つまり最低地上高が所定量確保されなければならない
が、ダブルクレードル型フレーム及びセミダブルクレー
ドル型フレームの場合にはエンジンの下側にダウンチュ
ーブが存在するので、その分だけ最低地上高を十分にと
ることが設計上困難となる場合がある。また、車体全体
を小型化するため、ホィールベースを短くしたいとの要
求があるが、ダウンチューブを有する場合には、ダウン
チューブとステアリングとが接触しないようにしなけれ
ばならないため、ホィールベースを大幅に短くすること
は困難であった。
2. Description of the Related Art Conventionally, as a vehicle body frame of a motorcycle, a double cradle type frame and a semi-double cradle type frame shaped like an engine mounted on a cradle have been widely used because of their relatively high strength and rigidity. In motorcycles, the height of the body above the ground,
In other words, the minimum ground clearance must be secured by a certain amount, but in the case of the double cradle type frame and the semi-double cradle type frame, there is a down tube under the engine, so the minimum ground clearance must be taken accordingly. May be difficult to design. Also, in order to downsize the entire vehicle body, there is a demand to shorten the wheel base, but if there is a down tube, it is necessary to prevent the down tube from coming into contact with the steering wheel. It was difficult to shorten it.

【0003】[0003]

【発明が解決しようとする課題】最近では、フレームそ
のものを外観デザインとして強調するため、フレームを
車体の両外側面に露出させたいという要請がある。この
要請に応えて、フレームそのものを車体の両外側面に露
出させる構成を想定すると、一対のフレームは横方向に
曲げ得るものでなければならない。本発明は、従来技術
の前記欠点を解消し、前記要請に応えるものであって、
自動二輪車の車体フレームにおいて、軽量で強度、縦方
向の剛性及びねじり剛性を高くし、そして最低地上高を
十分確保し、ホィールベースを短くし、美観を損なうこ
となくフレームを横方向に曲げ得ることを設計上容易と
させることを課題とする。
Recently, in order to emphasize the frame itself as an exterior design, there is a demand for exposing the frame to both outer side surfaces of the vehicle body. In response to this request, assuming a structure in which the frame itself is exposed on both outer side surfaces of the vehicle body, the pair of frames must be bendable in the lateral direction. The present invention solves the above-mentioned drawbacks of the prior art and meets the above-mentioned demand,
In a motorcycle body frame, be lightweight and have high strength, vertical rigidity and torsional rigidity, ensure a minimum ground clearance, shorten the wheel base, and bend the frame laterally without impairing aesthetics. The problem is to make the design easier.

【0004】[0004]

【課題を解決するための手段】前記課題を解決するため
に、本発明の自動二輪車の車体フレームにおいては、ヘ
ッドパイプに連設された左右一対のタンクレールが、ヘ
ッドパイプから後方かつ側面視で斜め下方に略直線的に
延び、上記タンクレールが車体の両外側面に露出するよ
うに配設され、タンクレールとしてアルミ押出材による
縦長の偏平パイプが用いられ、偏平パイプの内部に長手
方向に補強リブが形成され、偏平パイプの壁及び補強リ
ブによって、断面形状が縦長で中空長方形(中空長方形
に近似した形状、略中空長方形を含む。)の複数の区画
が形成される。
In order to solve the above-mentioned problems, in the motorcycle body frame of the present invention, a pair of left and right tank rails connected to the head pipe are rearward and side views from the head pipe. The tank rail is arranged so as to extend in a substantially straight line obliquely downward so as to be exposed on both outer side surfaces of the vehicle body, and a vertically long flat pipe made of aluminum extruded material is used as the tank rail. Reinforcing ribs are formed, and the walls of the flat pipe and the reinforcing ribs form a plurality of compartments each having a vertically elongated cross section and having a hollow rectangular shape (including a shape close to a hollow rectangular shape and a substantially hollow rectangular shape).

【0005】[0005]

【実施例】図1〜5において、1はステアリングのヘッ
ドパイプで、このヘッドパイプ1には前輪ステアリング
2が取付けられたフロントフォーク3が回転自在に保持
されている。4はフロントフォーク3を運転者が操作す
るハンドル、5はヘッドパイプ1に連接された左右一対
のタンクレールであって、側面から見てヘッドパイプ1
から後方でかつ斜め下方に略直線的に伸び、かつ上面か
ら見て膨らみを持つように湾曲形状に形成されている。
この一対のタンクレール5,5には縦長偏平としたアル
ミ押出材による偏平パイプ14が用いられ、かつ車体の両
外側面に露出するように配設されている。6はブラケッ
トリヤアームで、一対のタンクレール5,5の後端部に
溶接部6aにて溶接固定されている。7はブラケットリ
ヤアーム6に軸8にてピボット結合されたリヤアーム
で、このリヤアーム7の後端部には後輪9が支持されて
いる。10はラジエータ、11はエンジンで、これらは一対
のタンクレール5,5の下側に懸架されている。12はシ
ートレール、13はバックステーで、それぞれ一対のタン
クレール5,5及びブラケットリヤアーム6にボルト締
着などにより固定されている。
1 to 5, reference numeral 1 denotes a steering head pipe, on which a front fork 3 to which a front wheel steering 2 is attached is rotatably held. Reference numeral 4 denotes a steering wheel for a driver to operate the front fork 3, and reference numeral 5 denotes a pair of left and right tank rails connected to the head pipe 1.
Is formed in a curved shape so as to extend rearward and obliquely downward substantially linearly and to have a bulge when viewed from the upper surface.
A flat pipe 14 made of a vertically elongated flat aluminum extruded material is used for the pair of tank rails 5 and 5, and is arranged so as to be exposed on both outer side surfaces of the vehicle body. Reference numeral 6 denotes a bracket rear arm, which is welded and fixed to the rear ends of the pair of tank rails 5 and 5 by a welded portion 6a. Reference numeral 7 denotes a rear arm pivotally connected to the bracket rear arm 6 by a shaft 8, and a rear wheel 9 is supported at a rear end portion of the rear arm 7. 10 is a radiator, 11 is an engine, and these are suspended below a pair of tank rails 5, 5. A seat rail 12 and a back stay 13 are fixed to the pair of tank rails 5 and 5 and the bracket rear arm 6 by bolting or the like.

【0006】上記アルミ押出材による縦長の偏平パイプ
14でなるタンクレール5の断面が図4,図5に示されて
いる。図4,図5に示されるとおり、偏平パイプ14は連
続した外側壁o,上側壁u,内側壁i,下側壁dの壁に
よって縦長偏平のパイプ状に形成され、偏平パイプ14内
には外側壁oと内側壁iとに直交する面を有する上下の
補強リブ5a,5bが形成されている。補強リブ5a,5bは偏
平パイプ14の長手方向に連続しており、かつこの補強リ
ブ5a,5bの一部に長手方向の薄肉部nを設けて、これに
よりその機械的強度を一部弱くしている。そして、偏平
パイプ14内には、偏平パイプ14の壁及び上下の補強リブ
5a,5bによって、断面形状が縦長で略中空長方形の3区
画X,Y,Zが形成され、中空の区画Xは外側壁o,上
側壁u,内側壁i,補強リブ5aにより構成され、中空の
区画Yは外側壁o,補強リブ5a,内側壁i,補強リブ5b
により構成され、中空の区画Zは外側壁o,補強リブ5
b,内側壁i,下側壁dにより構成されている。この実
施例では薄肉部nはタンクレール5の車体の外側壁oか
ら遠く車体の内側壁iに近い位置に適当な巾をもって設
けられている。また、他の実施例では、図5に相当する
図6に示されるとおり、薄肉部nが外側壁oと内側壁i
の略中間部分に設けられている。なお、図面ではエンジ
ン11の駆動出力が後輪9に伝達される駆動機構及び一対
のタンクレール5,5に保持される燃料タンク、シート
レール12などに保持された運転者が乗るシートなどにつ
いては図示を省略している。
A vertically long flat pipe made of the aluminum extruded material
A cross section of the tank rail 5 consisting of 14 is shown in FIGS. As shown in FIGS. 4 and 5, the flat pipe 14 is formed into a vertically long flat pipe shape by the continuous outer wall o, the upper side wall u, the inner side wall i, and the lower side wall d. Upper and lower reinforcing ribs 5a and 5b having surfaces orthogonal to the wall o and the inner wall i are formed. The reinforcing ribs 5a and 5b are continuous in the longitudinal direction of the flat pipe 14, and a thin portion n in the longitudinal direction is provided in a part of the reinforcing ribs 5a and 5b, thereby partially weakening the mechanical strength thereof. ing. In the flat pipe 14, the walls of the flat pipe 14 and the upper and lower reinforcing ribs are provided.
By 5a and 5b, three sections X, Y and Z each having a vertically long cross section and a substantially hollow rectangular shape are formed. The hollow section X is constituted by an outer wall o, an upper side wall u, an inner side wall i and a reinforcing rib 5a, and is hollow. Section Y is an outer wall o, a reinforcing rib 5a, an inner wall i, and a reinforcing rib 5b.
The hollow section Z has an outer wall o and a reinforcing rib 5
It is composed of b, an inner wall i, and a lower wall d. In this embodiment, the thin portion n is provided with a suitable width at a position far from the outer side wall o of the vehicle body of the tank rail 5 and close to the inner side wall i of the vehicle body. Further, in another embodiment, as shown in FIG. 6 corresponding to FIG. 5, the thin portion n has an outer wall o and an inner wall i.
It is provided at a substantially middle portion of. In the drawings, the drive mechanism for transmitting the drive output of the engine 11 to the rear wheels 9, the fuel tank held by the pair of tank rails 5 and 5, the seat held by the driver on the seat rail 12, etc. Illustration is omitted.

【0007】上述のごとく、内部の3区画の断面形状が
それぞれ縦長で略中空長方形であり、全体としても縦長
としたアルミ押出材による左右一対の偏平パイプ14をタ
ンクレール5,5として用いているため、ヘッドパイプ
1を支点とした縦方向の剛性及びねじり剛性は増大し、
従来のダブルクレードル型フレーム及びセミダブルクレ
ードル型フレームのごとくダウンチューブを用いなくと
も十分な強度、剛性を備えたものとなる。そして、左右
一対のタンクレール5,5、ブラケットリヤアーム6お
よびリヤアーム7などにより車体フレームが構成され、
従来とは異なりエンジン11の下側にダウンチューブを設
けなくてよいため、地面からの最低地上高を設計容易に
して十分に確保することができ、また前輪ステアリング
2を大きく後方にオフセットさせてもよく、したがって
ホイールベースを短くすることが極めて容易となる。
As described above, the sectional shape of each of the three internal compartments is vertically long and substantially hollow rectangular, and the pair of left and right flat pipes 14 made of aluminum extruded material which are vertically long as a whole are used as the tank rails 5 and 5. Therefore, the rigidity in the vertical direction with the head pipe 1 as a fulcrum and the torsional rigidity are increased,
The conventional double cradle type frame and the semi-double cradle type frame have sufficient strength and rigidity without using a down tube. Then, a pair of left and right tank rails 5, 5, a bracket rear arm 6, a rear arm 7 and the like constitute a vehicle body frame,
Unlike the conventional case, it is not necessary to provide a down tube under the engine 11, so that the minimum ground clearance above the ground can be easily designed and sufficiently secured, and even if the front wheel steering 2 is largely offset to the rear. Well, it is therefore very easy to shorten the wheelbase.

【0008】縦長のタンクレール5,5を車体の両外側
面に露出させているので、フレームを外観デザイン上強
調することができ、またタンクレール5,5の内部に補
強リブ5a, 5bが押出時に一体的に成形されていて、内部
の3区画を断面形状が縦長で略中空長方形とし、3区画
を合わせたものを縦長偏平としたことと相俟って機械的
強度、縦方向の剛性及びねじり剛性は、より一層高ま
る。しかも、タンクレール5,5が上面からみて膨らみ
をもつごとく曲げ加工されて、その外方伸張面で補強リ
ブ5a,5bの部分が突っ張り作用が生じても、タンクレー
ル5,5の内部の補強リブ5a,5bには一部薄肉部nが設
けられているので、上記突っ張り力は、この薄肉部nの
湾曲、屈曲などにより巾変化として吸収されることにな
り、タンクレール5,5の外側に露出する面に美観を損
なうような凹凸や膚荒れを生じることが抑制される。し
たがって、フレームを車体の両外側面に露出させた配置
において、商品的価値を低下させるといったことが殆ど
なくなる。
Since the vertically long tank rails 5 and 5 are exposed on both outer side surfaces of the vehicle body, the frame can be emphasized in terms of external design, and the reinforcing ribs 5a and 5b are extruded inside the tank rails 5 and 5. At the same time, the three sections inside are integrally molded, and the cross-sectional shape is vertical with a substantially hollow rectangular shape. The torsional rigidity is further increased. Moreover, even if the tank rails 5 and 5 are bent so as to have a bulge when viewed from the upper surface and the reinforcing ribs 5a and 5b are stretched by their outwardly extending surfaces, the inside of the tank rails 5 and 5 is reinforced. Since the ribs 5a and 5b are partially provided with thin portions n, the tension force is absorbed as a change in width due to the bending and bending of the thin portions n, and the outside of the tank rails 5 and 5 is absorbed. It is possible to suppress the appearance of unevenness and rough skin on the exposed surface. Therefore, in the arrangement in which the frame is exposed on both outer side surfaces of the vehicle body, the commercial value is hardly reduced.

【0009】上述のごとく、中空のタンクレール5,5
の内部に補強リブ5a,5bを設けることにより、比較的大
きいパイプ空洞の場合に生じ易い共振音の発生を防止す
る効果をも有する。また、タンクレール5を構成する縦
長の偏平パイプはその構成上3次元での曲げを行うこと
は極めて困難であるが、2次元での曲げは比較的容易で
あるので、上記実施例のごとく側面から見たとき略直線
的であってその面での曲げ加工はなく、他方、上面から
見たときエンジン11などに対応して2本のタンクレール
5,5がその中間部でもって膨らみを持つように湾曲さ
せて、2次元でのみの曲げ加工としたことにより、縦長
の偏平パイプを用いてはいるが加工は容易となる。ま
た、このようにアルミ押出材でなるパイプ14を用いるこ
とにより、プレス打抜きによる、いわゆるもなか構造と
したタンクレールに比べ、型費は大幅に安価となり全体
コストの低減が可能となる。
As mentioned above, the hollow tank rails 5, 5
By providing the reinforcing ribs 5a and 5b in the inside, there is also an effect of preventing the generation of resonance noise that is likely to occur in the case of a relatively large pipe cavity. Further, it is extremely difficult to bend the three-dimensional flat pipe that constitutes the tank rail 5 in three dimensions because of its configuration, but it is relatively easy to bend in two dimensions, so that the side surface as in the above-described embodiment. When viewed from above, it is substantially linear and there is no bending on that surface. On the other hand, when viewed from above, the two tank rails 5 and 5 have a bulge in the middle part corresponding to the engine 11 etc. By bending as described above and performing bending processing only in two dimensions, the processing becomes easy although a vertically long flat pipe is used. Further, by using the pipe 14 made of the aluminum extruded material as described above, the die cost can be significantly reduced and the overall cost can be reduced as compared with a tank rail having a so-called hollow structure which is formed by press punching.

【0010】上記実施例ではタンクレール5の後端下方
部には切欠き部5cが設けられ、この切欠き部5cを設けた
ことによりタンクレール5の後方部を大きく斜め下方に
下げてもエンジン11部を適当な高さ位置に懸架し得るよ
うにし、かつ、タンクレール5の後方部を斜め下方に下
げることにより、運転者が自動二輪車に乗ったときにタ
ンクレールが足当たりの邪魔にならないようにしてい
る。また、タンクレール5の内側壁iにはその長さ方向
に凹部5dが一体成形されており、この凹部5dをワイヤー
ハーネス敷設用などに利用しうるようにしている。
In the above embodiment, the notch portion 5c is provided in the lower portion of the rear end of the tank rail 5, and by providing the notch portion 5c, even if the rear portion of the tank rail 5 is lowered largely obliquely downward, the engine By allowing 11 parts to be suspended at an appropriate height and lowering the rear part of the tank rail 5 diagonally downward, the tank rail does not interfere with the foot contact when the driver rides on the motorcycle. I am trying. Further, a recess 5d is integrally formed in the inner wall i of the tank rail 5 in the lengthwise direction thereof, and the recess 5d can be used for laying a wire harness or the like.

【0011】[0011]

【発明の効果】本発明においては、タンクレールとして
アルミ押出材による縦長の偏平パイプが用いられ、偏平
パイプの内部に長手方向に補強リブが形成され、偏平パ
イプの壁及び補強リブによって、断面形状が縦長で中空
長方形の複数の区画が形成されている。こうした複数の
縦長の区画を有し、全体としても縦長の偏平パイプを用
いることにより、軽量でタンクレールの縦方向の剛性及
びねじり剛性が極めて高く、タンクレールを左右方向に
美観を損なうことなく曲げることが容易である。従っ
て、ヘッドパイプに連設された左右一対のタンクレール
が、側面視でヘッドパイプから後方かつ斜め下方に略直
線的に延びるようになすことができる。そして、タンク
レールの縦方向の剛性及びねじり剛性が極めて高く、ダ
ウンチューブを用いなくても、自動二輪車の車体フレー
ムとして必要な強度、剛性を有するので、最低地上高さ
を容易かつ十分に確保することができ、またホィールベ
ースを短くすることも設計上極めて容易となる。前記構
成のタンクレールが幅方向の長さに較べて縦方向の長さ
が十分大であるので、左右一対のタンクレールの間(内
側)の空間を広く確保することができる。また、タンク
レールが車体の両外側面に露出するように配設されてい
るので、外観デザイン上の効果もある。
According to the present invention, a vertically elongated flat pipe made of an aluminum extruded material is used as a tank rail, and a reinforcing rib is formed in the longitudinal direction inside the flat pipe. Is vertically elongated and has a plurality of hollow rectangular sections. By having a plurality of vertically long sections and using vertically long flat pipes as a whole, it is lightweight and has extremely high vertical and torsional rigidity of the tank rail, and bends the tank rail in the left and right direction without impairing its aesthetic appearance. It's easy to do. Therefore, the pair of left and right tank rails connected to the head pipe can be extended substantially rearward and obliquely downward from the head pipe in a side view. The tank rail has extremely high rigidity in the vertical direction and torsional rigidity, and has strength and rigidity required for a vehicle body frame of a motorcycle without using a down tube, so that a minimum ground height can be easily and sufficiently secured. It is also possible to shorten the wheel base by designing. Since the length of the tank rail having the above-described configuration in the vertical direction is sufficiently larger than the length in the width direction, it is possible to secure a wide space between (inside) the pair of left and right tank rails. Further, since the tank rails are arranged so as to be exposed on both outer side surfaces of the vehicle body, there is an effect on the external appearance design.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例の自動二輪車の車体フレームの
概略側面図である。
FIG. 1 is a schematic side view of a vehicle body frame of a motorcycle according to an embodiment of the present invention.

【図2】本発明の実施例の自動二輪車の車体フレームの
要部の上面図である。
FIG. 2 is a top view of a main part of the vehicle body frame of the motorcycle according to the embodiment of the present invention.

【図3】図1のA矢視によるタンクレールの上面図であ
る。
FIG. 3 is a top view of the tank rail taken along the arrow A in FIG.

【図4】図3のIV−IV線断面図である。4 is a sectional view taken along line IV-IV in FIG.

【図5】図4に示すタンクレールの補強リブ部分の拡大
断面図である。
5 is an enlarged cross-sectional view of a reinforcing rib portion of the tank rail shown in FIG.

【図6】本発明の他の実施例による図5相当の拡大断面
図である。
FIG. 6 is an enlarged sectional view corresponding to FIG. 5 according to another embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1 ヘッドパイプ 5 タンクレール 5a 補強リブ 5b 補強リブ d 下側壁 i 内側壁 o 外側壁 u 上側壁 X 区画 Y 区画 Z 区画 1 head pipe 5 tank rail 5a reinforcing rib 5b reinforcing rib d lower side wall i inner side wall o outer side wall u upper side wall X section Y section Z section

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 ヘッドパイプに連設された左右一対のタ
ンクレールが、ヘッドパイプから後方かつ側面視で斜め
下方に略直線的に延び、上記タンクレールが車体の両外
側面に露出するように配設され、タンクレールとしてア
ルミ押出材による縦長の偏平パイプが用いられ、偏平パ
イプの内部に長手方向に補強リブが形成され、偏平パイ
プの壁及び補強リブによって、断面形状が縦長で中空長
方形の複数の区画が形成された自動二輪車の車体フレー
ム。
1. A pair of left and right tank rails connected to a head pipe extend substantially linearly rearward and obliquely downward in a side view from the head pipe so that the tank rails are exposed on both outer side surfaces of the vehicle body. A long flat pipe made of extruded aluminum is used as the tank rail, and a reinforcing rib is formed in the longitudinal direction inside the flat pipe. The flat pipe wall and the reinforcing rib have a vertically long hollow rectangular cross section. A motorcycle body frame with multiple compartments.
JP4165566A 1992-06-02 1992-06-02 Motorcycle body frame Expired - Fee Related JPH0794233B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4165566A JPH0794233B2 (en) 1992-06-02 1992-06-02 Motorcycle body frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4165566A JPH0794233B2 (en) 1992-06-02 1992-06-02 Motorcycle body frame

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP12202785A Division JPH0678074B2 (en) 1985-06-05 1985-06-05 Motorcycle frame

Publications (2)

Publication Number Publication Date
JPH05178252A true JPH05178252A (en) 1993-07-20
JPH0794233B2 JPH0794233B2 (en) 1995-10-11

Family

ID=15814801

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4165566A Expired - Fee Related JPH0794233B2 (en) 1992-06-02 1992-06-02 Motorcycle body frame

Country Status (1)

Country Link
JP (1) JPH0794233B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1580107A1 (en) * 2004-03-23 2005-09-28 HONDA MOTOR CO., Ltd. Vehicle frame structure
DE102004014908B4 (en) * 2003-03-31 2009-04-16 Honda Motor Co., Ltd. Motorcycle with a frame structure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6042183A (en) * 1983-08-18 1985-03-06 本田技研工業株式会社 Frame structure for car
JPS61215185A (en) * 1985-03-19 1986-09-24 本田技研工業株式会社 Car body frame for motorcycle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6042183A (en) * 1983-08-18 1985-03-06 本田技研工業株式会社 Frame structure for car
JPS61215185A (en) * 1985-03-19 1986-09-24 本田技研工業株式会社 Car body frame for motorcycle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004014908B4 (en) * 2003-03-31 2009-04-16 Honda Motor Co., Ltd. Motorcycle with a frame structure
EP1580107A1 (en) * 2004-03-23 2005-09-28 HONDA MOTOR CO., Ltd. Vehicle frame structure
US7195263B2 (en) 2004-03-23 2007-03-27 Honda Motor Co., Ltd. Vehicle frame structure

Also Published As

Publication number Publication date
JPH0794233B2 (en) 1995-10-11

Similar Documents

Publication Publication Date Title
JP4346313B2 (en) Auto body front structure
JP5346799B2 (en) Body superstructure
JP4200014B2 (en) Auto body structure
JPH0674071B2 (en) Motorcycle frame
JPH05178252A (en) Car body frame of motorcycle
JP2529633B2 (en) Motorcycle frame
JPH0678074B2 (en) Motorcycle frame
JP3534279B2 (en) Frame structure of motorcycle
JPH09254815A (en) Upper body structure of high-roof vehicle
JP4060426B2 (en) Auto body frame structure
JP3939945B2 (en) Motorcycle exhaust system
JP2707860B2 (en) Body frame structure
JP2737849B2 (en) Motorcycle rear arm
JPS61282183A (en) Car body frame for motorcycle
JP4584114B2 (en) Vehicle radiator arrangement structure
JP2009269488A (en) Front part structure of vehicle body
JPH03136987A (en) Frame of motorcycle
JPH0810076Y2 (en) Back panel structure of truck cab
JP2000128026A (en) Frame member for vehicle floor tunnel structure
JP2002193144A (en) Car body front structure of automobile
JPH03235782A (en) Exhaust pipe device for motorcycle
JPS6328079U (en)
JPS63263176A (en) Front part body structure of automobile
JPH0386693A (en) Scooter type motorcycle
JPH0586785U (en) Motorcycle frame

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees