JPH04133892A - Rear wheel suspension device for motorcycle - Google Patents
Rear wheel suspension device for motorcycleInfo
- Publication number
- JPH04133892A JPH04133892A JP25624290A JP25624290A JPH04133892A JP H04133892 A JPH04133892 A JP H04133892A JP 25624290 A JP25624290 A JP 25624290A JP 25624290 A JP25624290 A JP 25624290A JP H04133892 A JPH04133892 A JP H04133892A
- Authority
- JP
- Japan
- Prior art keywords
- shock absorber
- swing arm
- supporting part
- arm
- vehicle body
- 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
- 239000000725 suspension Substances 0.000 title claims description 6
- 239000006096 absorbing agent Substances 0.000 claims abstract description 30
- 230000035939 shock Effects 0.000 claims abstract description 30
- 238000013016 damping Methods 0.000 abstract description 2
- 239000012141 concentrate Substances 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Axle Suspensions And Sidecars For Cycles (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、片持ち式スイングアームな有する自動２輪
車の後輪懸架装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rear wheel suspension system for a motorcycle having a cantilevered swing arm.
［従来の技術〕
後輪な一側で支持する片持ち式スイングアームを備えた
自動２輪車は公知であり、例えば特開昭６１＝８９１９
０号公報記載のものがある。このものは、前端部が車体
後部へ揺動自在に軸支されかつ後端部−側に後輪を支持
する片持ち式スイングアームを有するとともに、緩衝器
をスイングアーム後部とシート下部のフレーム間にほぼ
鉛直方向へ配設したものが示されている。[Prior Art] Two-wheeled motor vehicles equipped with a cantilevered swing arm supported on one side of the rear wheel are well known, for example, disclosed in Japanese Patent Application Laid-Open No. 61/8919.
There is one described in Publication No. 0. This vehicle has a cantilevered swing arm whose front end is swingably pivoted to the rear of the vehicle body and which supports the rear wheel on the rear end side, and also has a shock absorber between the rear of the swing arm and the frame at the bottom of the seat. The one shown is one arranged almost vertically.
［発明が解決しようとする課題］
ところで、車体設計上、マスの集中化並びに車体のスリ
ム化が強く望まれている。この観点から緩衝器の配設に
ついて考察すると、緩衝器をできるだけ前傾させて寝か
せるように配設することが好ましい。しかしこのように
すると、緩衝器が後輪のタイヤと干渉したり、ステップ
幅を車体外側方へ拡大させてしま°う等の問題が生じた
。[Problems to be Solved by the Invention] Incidentally, in terms of vehicle body design, mass concentration and slimming of the vehicle body are strongly desired. Considering the arrangement of the shock absorber from this point of view, it is preferable to arrange the shock absorber so that it is tilted forward as much as possible. However, when doing this, problems arose, such as the shock absorber interfering with the rear tires and the step width expanding toward the outside of the vehicle body.
そこで本発明は、係る諸問題を解決することを目的とす
る。Therefore, the present invention aims to solve these problems.
［課題を解決するための手段〕
上記課題を解決するため、本発明に係る自動２輪車の後
輪懸架装置は、前端部が車体後部へ揺動自在に軸支され
かつ後端部−側に後輪を支持する片持ち式スイングアー
ムと、このスイングアームと車体との間に配設された緩
衝器とを備えたものにおいて、緩衝器のアーム側支持部
をスイングアーム後端部寄りに設け、車体側支持部をス
イングアームの軸支部近傍かつアーム側支持部に対して
車体中心側へオフセットしたことを特徴とする。[Means for Solving the Problems] In order to solve the above-mentioned problems, a rear wheel suspension system for a motorcycle according to the present invention has a front end pivotally supported to the rear of the vehicle body, and a rear end - side. In a vehicle equipped with a cantilevered swing arm that supports the rear wheel, and a shock absorber disposed between the swing arm and the vehicle body, the arm-side support part of the shock absorber is moved closer to the rear end of the swing arm. The present invention is characterized in that the vehicle body side support portion is located near the pivot portion of the swing arm and offset toward the vehicle body center side with respect to the arm side support portion.
［発明の作用］
緩衝器をスイングアームの後端部寄り位置と車体側のス
イングアーム軸支部近傍位置との間に配設すると、緩衝
器は前傾するので、それだけマスの集中化が図られる。[Operation of the invention] When the shock absorber is arranged between a position near the rear end of the swing arm and a position near the swing arm shaft support on the vehicle body side, the shock absorber is tilted forward, so that the mass can be concentrated accordingly. .
また、緩衝器の車体側支持部を、アーム側支持部に対し
車体中心側へオフセットさせると、緩衝器を前傾させて
も緩衝器の側方にステップ及びタイヤを干渉することな
（配設するための空間が確保される。In addition, by offsetting the body-side support part of the shock absorber toward the center of the vehicle body with respect to the arm-side support part, even if the shock absorber is tilted forward, the steps and tires will not interfere with the side of the shock absorber. A space will be secured to do so.
［実施例］
第１図及び第３図に一実施例を示す。第１図は自動２輪
車の車体要部について側面形状を示し、１は前輪、２は
フロントフォーク、３はメインフレーム、４はスイング
アーム、５は緩衝器、６は後輪、６ａは後輪の車軸、７
はチェーン、７ａはドリブンスプロケット、８はステッ
プ、９はエンジンである。[Example] An example is shown in FIGS. 1 and 3. Figure 1 shows the side shape of the main body parts of a motorcycle, where 1 is the front wheel, 2 is the front fork, 3 is the main frame, 4 is the swing arm, 5 is the shock absorber, 6 is the rear wheel, and 6a is the rear. wheel axle, 7
is a chain, 7a is a driven sprocket, 8 is a step, and 9 is an engine.
第２図は第１図の緩衝器５及びその周囲を拡大して示す
図であり、第３図はスイングアームの要部平面形状を示
す図である。第１図及び第２図に示すように、スイング
アーム４は前端部をメインフレーム３の後端部に連接さ
れたピボットブレー）・３ａヘビボツト３ｂで軸支され
るとともに、第３図に明らかなように、後端部一側で後
輪６を支持している片持ち式である。FIG. 2 is an enlarged view showing the shock absorber 5 and its surroundings in FIG. 1, and FIG. 3 is a view showing the planar shape of the main part of the swing arm. As shown in FIGS. 1 and 2, the front end of the swing arm 4 is pivotally supported by a pivot brake (3a) connected to the rear end of the main frame 3. It is a cantilever type in which the rear wheel 6 is supported on one side of the rear end.
緩衝器５は倒立型であり、第２図及び第３図に示すよう
に、本体１０には外筒１１及び内筒１２からなる減衰機
構とダンパスプリング１３とが設けられた公知のもので
ある。本体１０の下部からは下側ロッド１４が下方へ延
出し、その先端がスイングアーム４の上に設けられたア
ーム側支持部１５へ連結されている。一方、上部からは
上側ロッド１６が上方へ延出し、車体側支持部１７へ連
結されている。The shock absorber 5 is of an inverted type, and as shown in FIGS. 2 and 3, it is a known type in which a main body 10 is provided with a damping mechanism consisting of an outer cylinder 11 and an inner cylinder 12 and a damper spring 13. . A lower rod 14 extends downward from the lower part of the main body 10, and its tip is connected to an arm-side support portion 15 provided on the swing arm 4. On the other hand, an upper rod 16 extends upward from the upper part and is connected to a vehicle body side support part 17.
アーム側支持部１５はスイングアーム４の中間部よりも
若干後端部寄りで、後輪６のタイヤ１８の側方近傍位置
に設けられている（第３図）。The arm side support portion 15 is provided at a position slightly closer to the rear end than the middle portion of the swing arm 4 and near the side of the tire 18 of the rear wheel 6 (FIG. 3).
下側ロッド１４の内側方にはチェーン７が交差して前後
方向へ通過している。また、後輪６も下側ロッド１４と
側面視で重なっている。A chain 7 crosses inside the lower rod 14 and passes in the front-rear direction. Further, the rear wheel 6 also overlaps the lower rod 14 in a side view.
車体側支持部１７は取付ステー１７ａの上端部に設けら
れ、スイングアーム４の軸支部にあるピボット３ｂの略
直上に位置する。取付ステー１７８は左右一対をなすメ
インフレーム３の各後端部間を連結するクロスメンバ１
９上に上方へ突出して設けられ、略への字状に前方へ延
出する部分によって補強されている（第３図）。また、
車体側支持部１７の取付位置は第３図に明らかなように
、アーム側支持部１５に対して寸法りだけ車体中心側へ
オフセットされ、平面視で緩衝器５は車体中心線Ｃに対
して角θなる傾斜で配設されている。したがって、下側
ロッド１４の内方側にタイヤ配設空間２０が、外側方に
略三角形のステップ配設空間２１がそれぞれ形成される
。タイヤ配設空間２０内には後輪のタイヤ１８及びチェ
ーン７が、またステップ配設空間２１内にはステップ８
が配設されている。ステップ８は第３図に明らかなよう
に、ステップホルダ２２の後端部へ取付けられている。The vehicle body side support portion 17 is provided at the upper end of the mounting stay 17a, and is located approximately directly above the pivot 3b on the shaft support of the swing arm 4. The mounting stay 178 is a cross member 1 that connects the rear ends of the left and right main frames 3.
It is provided on 9 so as to protrude upward and is reinforced by a portion that extends forward in a substantially curved shape (FIG. 3). Also,
As is clear from FIG. 3, the mounting position of the vehicle body side support portion 17 is offset toward the vehicle center by a certain amount with respect to the arm side support portion 15, and the shock absorber 5 is offset from the vehicle body center line C in a plan view. It is arranged at an angle θ. Therefore, a tire arrangement space 20 is formed on the inner side of the lower rod 14, and a substantially triangular step arrangement space 21 is formed on the outer side. The rear tire 18 and chain 7 are placed in the tire placement space 20, and the step 8 is placed in the step placement space 21.
is installed. The step 8 is attached to the rear end of the step holder 22, as seen in FIG.
ステップホルダ２２はピボットプレート３ａヘボルト２
３によって取付けられかつ後方のステップ配設空間２１
内へ延出している。The step holder 22 is bolted to the pivot plate 3a.
3 and the rear step arrangement space 21
It extends inward.
次に、本実施例の作用を説明する。まず、緩衝器５は、
アーム側支持部１５と車体側支持部１７間へ配設される
ことによって、前傾状態になるので、緩衝器５の重心は
車体の重心へ近づいてマスの集中が図られる。しかも、
倒立させたことにより、本体１０に対して遥かに細い下
側ロッド１４の側方にタイヤ配設空間２０が形成される
ので、この空間を利用することにより、緩衝器５を前傾
配置しても後輪６のタイヤ１８及びチェーン７ととの干
渉を避けて配置可能になる。Next, the operation of this embodiment will be explained. First, the buffer 5 is
By being disposed between the arm side support part 15 and the vehicle body side support part 17, the shock absorber 5 is tilted forward, so that the center of gravity of the shock absorber 5 approaches the center of gravity of the vehicle body, thereby concentrating the mass. Moreover,
By standing it upside down, a tire installation space 20 is formed on the side of the lower rod 14, which is much thinner with respect to the main body 10, so by utilizing this space, the shock absorber 5 can be placed tilted forward. can also be placed while avoiding interference with the tire 18 of the rear wheel 6 and the chain 7.
また、車体側支持部１７側を車体中心側へオフセットし
たことにより、本体１０の下方外側に形成されるステッ
プ配設空間２１内へステップホルダ２２及びステップ８
を配設できる。ゆえに、ステップホルダ２２及びステッ
プ８と干渉することなく、かつ、ステップ８の位置を車
体側方へ張り出させないで緩衝器５を前傾させることが
でき、車体のスリム化に貢献できる。In addition, by offsetting the vehicle body side support portion 17 side toward the vehicle center side, the step holder 22 and the step 8 can be moved into the step arrangement space 21 formed on the lower outer side of the main body 10.
can be placed. Therefore, the shock absorber 5 can be tilted forward without interfering with the step holder 22 and the step 8 and without protruding the position of the step 8 to the side of the vehicle body, contributing to slimming of the vehicle body.
［発明の効果］
この発明に係る自動２輪車の後輪懸架装置は、緩衝器の
アーム側支持部を片持ち式スイングアームの後端部寄り
に設け、車体側支持部をスイングアームの軸支部近傍か
つアーム側支持部に対して車体中心側へ配設した。ゆえ
に、後輪のタイヤとの干渉を避けるとともに、ステップ
幅を拡大することなく緩衝器を前傾配置できるので、マ
スの集中化を図ることができ、かつ車体のスリム化を実
現できる。[Effects of the Invention] In the rear wheel suspension system for a motorcycle according to the present invention, the arm side support portion of the shock absorber is provided near the rear end of the cantilevered swing arm, and the vehicle body side support portion is provided near the rear end of the swing arm. It is located near the branch and toward the center of the vehicle body relative to the arm side support part. Therefore, interference with the rear tires can be avoided, and the shock absorber can be placed tilted forward without increasing the step width, making it possible to centralize mass and make the vehicle body slimmer.
第１図乃至第３図は実施例に係り、第１図は車体要部の
側面図、第２図はその要部拡大図、第３図は要部平面図
である。
（符号の説明）
３・・・メインフレーム、４・・・スイングアーム、３
ｂ・・・ピボット、５・・・緩衝器、６・・・後輪、７
・・・チェーン、８・・・ステップ、１０・・・緩衝器
の本体、１４・・・下側ロッド、１５−・・アーム側支
持部、１６・・・上側ロッド、１７・・・車体側支持部
、１８・・・タイヤ、２０・・・タイヤ配設空間、２１
・・・ステップ配設空間、２２・・・ステップホルダ、
Ｃ・・・車体中心。
特 許 出 願 人 本田技研工業株式会社代理人
弁理士 小 松 清 光1 to 3 relate to an embodiment, in which FIG. 1 is a side view of the main part of the vehicle body, FIG. 2 is an enlarged view of the main part, and FIG. 3 is a plan view of the main part. (Explanation of symbols) 3... Main frame, 4... Swing arm, 3
b... Pivot, 5... Shock absorber, 6... Rear wheel, 7
...Chain, 8...Step, 10...Body of shock absorber, 14--Lower rod, 15--Arm side support part, 16--Upper rod, 17--Vehicle body side Support part, 18... Tire, 20... Tire installation space, 21
...Step arrangement space, 22...Step holder,
C: Center of the vehicle body. Patent applicant: Agent for Honda Motor Co., Ltd.
Patent attorney Kiyomitsu Komatsu
Claims (1)
に後輪を支持する片持ち式スイングアームと、このスイ
ングアームと車体との間に配設された緩衝器とを備えた
自動２輪車の後輪懸架装置において、緩衝器のアーム側
支持部をスイングアーム後端部寄りに設け、車体側支持
部をスイングアームの軸支部近傍かつアーム側支持部に
対し車体中心側へオフセットしたことを特徴とする自動
２輪車の後輪懸架装置。The vehicle is equipped with a cantilevered swing arm whose front end is pivotably supported to the rear of the vehicle body and supports a rear wheel on one side of the rear end, and a shock absorber disposed between the swing arm and the vehicle body. In a rear wheel suspension system for a two-wheeled motor vehicle, the arm-side support portion of the shock absorber is provided near the rear end of the swing arm, and the vehicle body-side support portion is provided near the shaft support of the swing arm and toward the center of the vehicle body with respect to the arm-side support portion. A rear wheel suspension system for a two-wheeled motor vehicle, characterized by being offset to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25624290A JPH04133892A (en) | 1990-09-26 | 1990-09-26 | Rear wheel suspension device for motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25624290A JPH04133892A (en) | 1990-09-26 | 1990-09-26 | Rear wheel suspension device for motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04133892A true JPH04133892A (en) | 1992-05-07 |
Family
ID=17289915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25624290A Pending JPH04133892A (en) | 1990-09-26 | 1990-09-26 | Rear wheel suspension device for motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04133892A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2130731B1 (en) * | 2008-06-06 | 2015-07-29 | Yamaha Hatsudoki Kabushiki Kaisha | Two-wheeled vehicle |
-
1990
- 1990-09-26 JP JP25624290A patent/JPH04133892A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2130731B1 (en) * | 2008-06-06 | 2015-07-29 | Yamaha Hatsudoki Kabushiki Kaisha | Two-wheeled vehicle |
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