JPS61261175A - Rear arm support link fixture for motorcycle - Google Patents
Rear arm support link fixture for motorcycleInfo
- Publication number
- JPS61261175A JPS61261175A JP10107385A JP10107385A JPS61261175A JP S61261175 A JPS61261175 A JP S61261175A JP 10107385 A JP10107385 A JP 10107385A JP 10107385 A JP10107385 A JP 10107385A JP S61261175 A JPS61261175 A JP S61261175A
- Authority
- JP
- Japan
- Prior art keywords
- arm
- rear arm
- mounting boss
- cross member
- 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.)
- Granted
Links
Landscapes
- Axle Suspensions And Sidecars For Cycles (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
この発明はリンク機構でリヤアームを車体に支持する自
動二輪車のリヤアーム支持リンク取付装置に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rear arm support link attachment device for a motorcycle that supports a rear arm on a vehicle body using a link mechanism.
（従来の技術）
自動二輪車においては後輪を保持したリヤアームを車体
に軸支し、このリヤアームと車体とをリンク機構を介し
て連結し、リンク機構と車体との間に緩衝装置を介在し
て、後輪を車体に支持するものがある。(Prior art) In a motorcycle, a rear arm holding a rear wheel is pivotally supported on the vehicle body, the rear arm and the vehicle body are connected via a link mechanism, and a shock absorber is interposed between the link mechanism and the vehicle body. , there is one that supports the rear wheels on the vehicle body.
このリヤアームは一対のアーム部をクロスメンバで溶接
することにより連結して構成され、またリンク機構のア
ーム側が一対のアーム部にそれぞれ別々に溶接された取
付ボス部に回動可能に軸支されるものがある。This rear arm is constructed by connecting a pair of arm sections by welding them with a cross member, and the arm side of the link mechanism is rotatably supported by a mounting boss section that is separately welded to the pair of arm sections. There is something.
（発明が解決しようとする問題点）
ところで、リンク機構を支持する取付ボス部は １十分
な強度が要求されるため、取付ボス部を別々に溶接で固
定すると溶接長が増加する。しかも、溶接による応力の
集中及び溶接ひずみが生じるため、溶接長を極力軽減し
て固定できるようにすると強度上好ましい、また、取付
ボス部を別々にリヤアームのアーム部に溶接すると、そ
の位置決めに手数を要する。(Problems to be Solved by the Invention) By the way, the mounting boss portion that supports the link mechanism is required to have sufficient strength, so if the mounting boss portions are fixed separately by welding, the weld length will increase. In addition, welding causes stress concentration and welding distortion, so it is preferable to reduce the weld length as much as possible so that it can be fixed.Also, if the mounting boss is welded separately to the rear arm, it will take a lot of effort to position it. It takes.
この発明はかかる点に鑑みなされたもので、溶接長さを
極力軽減して強度の向上を図り、しかも位置決めを確実
に行なうことができる自動二輪車のリヤアーム支持リン
ク取付装置を提供することを目的としている。This invention has been made in view of the above, and an object of the present invention is to provide a rear arm support link mounting device for a motorcycle that can reduce welding length as much as possible, improve strength, and ensure positioning. There is.
（問題点を解決するための手段）
この発明は前記の問題点を解決するために、リンク機構
のアーム側が支持される取付ボス部をクロスメンバと押
出部材で一体に成形し、このクロスメンバの軸方向の両
端部をリヤアームのアーム部に溶接して取付ボス部を所
定の位置に配置したことを特徴としている。(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention integrally molds the mounting boss part on which the arm side of the link mechanism is supported by a cross member and an extrusion member, and It is characterized in that both ends in the axial direction are welded to the arm part of the rear arm, and the mounting boss part is arranged at a predetermined position.
（作用）
この発明では、リヤアームを支持するリンク機構の取付
ボス部が、クロスメンバの軸方向の両端部をリヤアーム
の一対のアーム部間に溶接して設けられる。このように
、取付ボス部はクロスメンバと一体に所定の位置に確実
に配置され、さらにこの取付ボス部にリンク機構のアー
ム側が回動可能に軸支され、溶接長さが極力軽減される
。(Function) In the present invention, the mounting boss portion of the link mechanism that supports the rear arm is provided by welding both axial ends of the cross member between the pair of arm portions of the rear arm. In this manner, the mounting boss portion is reliably arranged at a predetermined position integrally with the cross member, and the arm side of the link mechanism is rotatably supported on the mounting boss portion, thereby reducing the welding length as much as possible.
（実施例）
以下、この発明の一実施例を添付図面に基づいて詳細に
説明する。(Example) Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.
図において、１は車体フレームで、この車体フレーム１
を構成するヘッドパイプ２にはフロントフォーク３が旋
回可能に設けられている。このフロントフォーク３の下
端部には前輪４が設けられている。In the figure, 1 is a car body frame, and this car body frame 1
A front fork 3 is rotatably provided on a head pipe 2 constituting the front fork. A front wheel 4 is provided at the lower end of the front fork 3.
ヘッドパイプ２にはメインフレーム５及びダウンチュー
ブ６の前側部が溶接され、このメインフレーム５及びダ
ウンチューブ６の後側部はリヤブラケットフレーム７を
介して連結され、これらで構成される車体フレームｌに
は内燃機関８が搭載されている。The front parts of a main frame 5 and a down tube 6 are welded to the head pipe 2, and the rear parts of the main frame 5 and down tube 6 are connected via a rear bracket frame 7, thereby forming a vehicle body frame l. is equipped with an internal combustion engine 8.
車体フレームｌには後輪９がリヤサスベンジ璽ン１０を
介して設けられ、このリヤサスペンションｌＯはリヤア
ーム１１、リンク機構１２及び緩衝装置１３とから構成
されている。A rear wheel 9 is provided on a vehicle body frame 1 via a rear suspension suspension 10, and this rear suspension 1O is composed of a rear arm 11, a link mechanism 12, and a shock absorber 13.
リヤアーム１１は一対のアーム部１１ａからなり、この
先端部は車体フレーム１のリヤアームブラケット１４に
支持軸１５を支点として軸支され、後端部には後輪９が
設けられている。内燃機関８からの駆動力はチェーン１
６を介して後輪９に伝達される。The rear arm 11 consists of a pair of arm parts 11a, the tip of which is supported by the rear arm bracket 14 of the vehicle body frame 1 about a support shaft 15, and a rear wheel 9 is provided at the rear end. The driving force from the internal combustion engine 8 is the chain 1
6 to the rear wheels 9.
リンク機構１２は車体側リンク１７とアーム側リンク１
８とから構成されている。車体側リンク１７の一端部に
形成された回動軸＠ １７ ａはリヤブラケットフレー
ム７に溶接されたブラケット１９に支持軸２０を介して
軸支され、他端部に形成された回動軸部１７ｂは支持軸
２１に軸支されている。The link mechanism 12 includes a vehicle body side link 17 and an arm side link 1.
It consists of 8. A rotation shaft @ 17a formed at one end of the vehicle body side link 17 is pivotally supported by a bracket 19 welded to the rear bracket frame 7 via a support shaft 20, and a rotation shaft formed at the other end 17b is pivotally supported by a support shaft 21.
アーム側リンク１８は一対の板金を打ち抜いて成形され
、その一端部１８ａは車体側リンク１７の回動軸部１７
ｂの両側に当てがわれ、支持軸２１に支持されている。The arm side link 18 is formed by punching out a pair of sheet metal, and one end 18a thereof is connected to the rotation shaft portion 17 of the vehicle body side link 17.
b, and is supported by a support shaft 21.
そして、リヤアーム側リンク１８の他端部１８ｂは取付
ボス部２２の軸方向の両側に当てがわれ、支持軸２３を
介して取付ボス部２２に回動可能に支持されている。The other end portion 18b of the rear arm side link 18 is placed on both sides of the attachment boss portion 22 in the axial direction, and is rotatably supported by the attachment boss portion 22 via a support shaft 23.
この取付ボス部２２は、例えば、アルミニウム（合金を
含む）、マグネシウム（合金を含む）からなるパイプ状
の押出部材２４により、クロスメンバ２５と一体に形成
されている。取付ボス部２２は、第４図に示すようにク
ロスメンバ２５の下方の両側２６を切削加工して形成さ
れ、取付ボス部２２には軸方向の抜き孔２７が形成され
軽量化が図られている。The mounting boss portion 22 is formed integrally with the cross member 25 by a pipe-shaped extruded member 24 made of, for example, aluminum (including alloys) or magnesium (including alloys). The mounting boss part 22 is formed by cutting both sides 26 of the lower part of the cross member 25 as shown in FIG. 4, and an axial punch hole 27 is formed in the mounting boss part 22 to reduce the weight. There is.
クロスメンバ２５はその軸方向の両端部がリヤアーム１
１のアーム部１１ａに溶接され、取付ボス部２２はこの
クロスメンバ２５を溶接することにより所定の位置に配
置される。Both ends of the cross member 25 in the axial direction are connected to the rear arm 1.
The mounting boss portion 22 is welded to the arm portion 11a of the cross member 25, and the mounting boss portion 22 is arranged at a predetermined position by welding this cross member 25.
前記緩衝装置１３の下端部１３ａｊ士車体側リンク１７
の回動軸部１７ｂに形成された支持部１７Ｃに支持軸２
８を介して回動可能に支持され、上端部１３ｂは車体フ
レームｌに軸支されている。Lower end portion 13aj of the shock absorber 13 and vehicle body side link 17
The support shaft 2 is attached to the support portion 17C formed on the rotation shaft portion 17b.
8, and the upper end portion 13b is pivotally supported by the vehicle body frame l.
次に、この実施例の作用について説明する。Next, the operation of this embodiment will be explained.
リヤアーム１１にかかる車体の荷重はリンク機構１２を
介して緩衝装置１３に伝達され、緩衝装置ｉ１３がリン
ク機構１２の回動軸部１７ｂを下方に押すとともに、車
体フレーム１及びリヤアーム１１を押す力のバランスで
車体の荷重を支持°シ。The load of the vehicle body applied to the rear arm 11 is transmitted to the shock absorber 13 via the link mechanism 12, and the shock absorber i13 pushes the rotating shaft portion 17b of the link mechanism 12 downward, and at the same time reduces the force pushing the vehicle body frame 1 and the rear arm 11. Supports the load of the vehicle body with balance.
路面の凹凸によって生ずる振動を和らげている。It dampens vibrations caused by uneven road surfaces.
このとき、リンク機構１２のアーム側リンク１８は取付
ボス部２２に支持されており、この取付ボス部２２にか
かる荷重は一体に形成されたクロスメンバ２５で受けて
いる。At this time, the arm side link 18 of the link mechanism 12 is supported by the mounting boss portion 22, and the load applied to the mounting boss portion 22 is received by the cross member 25 formed integrally.
この取付ボス部２２はクロスメンバ２５の両端部のみを
リヤアーム１１に溶接することによって固定されるため
、溶接長さが短くなっており、溶接による応力集中及び
溶接ひずみが軽減されている。Since the mounting boss portion 22 is fixed by welding only both ends of the cross member 25 to the rear arm 11, the welding length is short, and stress concentration and welding strain due to welding are reduced.
そして、取付ボス部２２はクロスメンバ２５と一体に形
成されているため、クロスメンバ２５を所定の位置に位
置決めして、リヤアーム１１のアーム部１１ａに溶接す
れば、取付ボス部２２は所定の位置に確実に位置決めさ
れる。Since the mounting boss portion 22 is integrally formed with the cross member 25, once the cross member 25 is positioned at a predetermined position and welded to the arm portion 11a of the rear arm 11, the mounting boss portion 22 will be located at the predetermined position. be positioned securely.
（発明の効果）
この発明は前記のように、リンク機構のアーム側の取付
ボス部をリアアームのクロスメンバと押出部材で一体に
成形し、このクロスメンバの軸方向の両端部をリヤアー
ムに溶接して取付ボス部を所定の位置に配置したから、
取付ボス部をリヤアームに固定する際に、従来のリヤア
ームに直接溶接するものに比べて溶接長さが極力軽減さ
れ、強度が向上し、しかも取付ボス部の位置決めを確実
に行なうことができる(Effects of the Invention) As described above, in this invention, the mounting boss portion on the arm side of the link mechanism is integrally formed with the cross member of the rear arm and the extruded member, and both ends of this cross member in the axial direction are welded to the rear arm. After placing the mounting boss part in the specified position,
When fixing the mounting boss to the rear arm, the weld length is minimized compared to conventional welding directly to the rear arm, improving strength and ensuring reliable positioning of the mounting boss.
第１図はこの発明を適用した自動二輪車の側面図、第２
図は要部の拡大図、第３図は第２図の■−ｍ断面図、第
４図は取付ボス部とクロスメンバの斜視図である。
１・・・車体フレーム
１１・・・リヤアーム
１１ａ・・・アーム部
１２・・・リンク機構
１３・・・緩衝装置
１７・・・車体側リンク
１８・・・７−ム側リンク
２２・・・取付ボス部
２５・・・クロスメンバ
特 許 出 願 人 ヤマハ発動機株式会社第２図
ｑ
第３図Figure 1 is a side view of a motorcycle to which this invention is applied;
The figure is an enlarged view of the main part, FIG. 3 is a sectional view taken along the line 2-m in FIG. 2, and FIG. 4 is a perspective view of the mounting boss and the cross member. 1...Vehicle frame 11...Rear arm 11a...Arm portion 12...Link mechanism 13...Buffer device 17...Vehicle side link 18...7-arm side link 22...Installation Boss portion 25...Cross member patent applicant Yamaha Motor Co., Ltd. Figure 2 q Figure 3
Claims (1)
アームに後輪を設け、このリヤアームを車体に軸支する
とともに、リヤアームと車体とをリンク機構を介して支
持し、さらにリンク機構と車体との間に緩衝装置を介在
した自動二輪車において、前記リンク機構のアーム側を
支持する取付ボス部を前記クロスメンバと押出部材で一
体に成形し、このクロスメンバの軸方向の両端部を前記
アーム部に溶接して取付ボス部を所定の位置に配置した
自動二輪車のリヤアーム支持リンク取付装置。A rear wheel is provided on a rear arm consisting of a pair of arm parts connected by a cross member, and this rear arm is pivotally supported on the vehicle body, and the rear arm and the vehicle body are supported via a link mechanism. In a motorcycle having a shock absorber interposed therein, a mounting boss portion supporting an arm side of the link mechanism is integrally formed with the cross member and an extruded member, and both ends of the cross member in the axial direction are welded to the arm portion. A rear arm support link mounting device for a motorcycle in which a mounting boss is placed in a predetermined position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60101073A JPH0761792B2 (en) | 1985-05-13 | 1985-05-13 | Rear arm support link mounting mechanism for motorcycles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60101073A JPH0761792B2 (en) | 1985-05-13 | 1985-05-13 | Rear arm support link mounting mechanism for motorcycles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61261175A true JPS61261175A (en) | 1986-11-19 |
| JPH0761792B2 JPH0761792B2 (en) | 1995-07-05 |
Family
ID=14290926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60101073A Expired - Fee Related JPH0761792B2 (en) | 1985-05-13 | 1985-05-13 | Rear arm support link mounting mechanism for motorcycles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0761792B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008056085A (en) * | 2006-08-31 | 2008-03-13 | Kawasaki Heavy Ind Ltd | Swing arms of motorcycle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5950887A (en) * | 1982-09-17 | 1984-03-24 | ヤマハ発動機株式会社 | Rear-wheel suspension system for motorcycle |
| JPS6060088A (en) * | 1983-09-13 | 1985-04-06 | 本田技研工業株式会社 | Suspension system for rear wheel of motorcycle |
-
1985
- 1985-05-13 JP JP60101073A patent/JPH0761792B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5950887A (en) * | 1982-09-17 | 1984-03-24 | ヤマハ発動機株式会社 | Rear-wheel suspension system for motorcycle |
| JPS6060088A (en) * | 1983-09-13 | 1985-04-06 | 本田技研工業株式会社 | Suspension system for rear wheel of motorcycle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008056085A (en) * | 2006-08-31 | 2008-03-13 | Kawasaki Heavy Ind Ltd | Swing arms of motorcycle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0761792B2 (en) | 1995-07-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |