JPH0217992Y2 - - Google Patents
Info
- Publication number
- JPH0217992Y2 JPH0217992Y2 JP14780483U JP14780483U JPH0217992Y2 JP H0217992 Y2 JPH0217992 Y2 JP H0217992Y2 JP 14780483 U JP14780483 U JP 14780483U JP 14780483 U JP14780483 U JP 14780483U JP H0217992 Y2 JPH0217992 Y2 JP H0217992Y2
- Authority
- JP
- Japan
- Prior art keywords
- rear wheel
- pipe
- groove
- wall
- arm
- 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
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Axle Suspensions And Sidecars For Cycles (AREA)
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の後輪軸支持構造に関する
ものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a rear wheel shaft support structure for a motorcycle.
後輪を支持するための後アームを断面角型のパ
イプにより形成した自動二輪車では、その後輪軸
支持部の構造を次のようにするのが一般的であつ
た。すなわち、パイプ後端にパイプ断面幅とほゞ
同一寸法のコマを挿入し、このコマとパイプとに
共通の長溝を穿設し、その長溝に後輪軸を支持す
ると共に、パイプの両外側から締付ナツト等によ
り横方向の締付固定を行うものである。ところ
が、製作上の都合からパイプとコマと間の幅寸法
に隙間を設けなければならないため、上述の締付
ナツトによる横方向の締付けを行うとパイプ断面
は隙間分だけ変形を起し、角型パイプの外観を悪
化してしまう欠点があつた。
In motorcycles in which the rear arm for supporting the rear wheel is formed of a pipe with a rectangular cross section, the structure of the rear wheel shaft support part has generally been as follows. In other words, a piece with approximately the same dimensions as the cross-sectional width of the pipe is inserted into the rear end of the pipe, a common long groove is bored between this piece and the pipe, and the rear wheel axle is supported in the long groove, and the pipe is tightened from both outside sides. It is tightened and fixed in the lateral direction using a bolt or the like. However, due to manufacturing reasons, a gap must be provided in the width dimension between the pipe and the piece, so when the above-mentioned tightening nut is used to tighten the pipe in the lateral direction, the cross section of the pipe deforms by the amount of the gap, resulting in a square shape. This had the drawback of deteriorating the appearance of the pipe.
本考案の目的は、断面角型パイプからなる後ア
ームに後輪軸を支持するとき、横方向の締付けに
よつてパイプ断面が変形することがないようにし
た自動二輪車の後輪軸支持構造を提供せんとする
ことにある。
The purpose of the present invention is to provide a rear wheel axle support structure for a motorcycle that prevents the pipe cross section from deforming due to lateral tightening when the rear wheel axle is supported by a rear arm made of a square cross-section pipe. It is to do so.
上記目的を達成する本考案は、後輪軸を支持す
る後アームを断面角型のパイプで形成した自動二
輪車において、前記後アームのパイプに後輪と対
面する側の壁には後輪軸々径よりも大きな幅の溝
を、また後輪と対面しない側の壁には後輪軸々径
と実質的同一幅の溝をそれぞれパイプ後端からパ
イプ長手方向に沿つて設け、前記後輪軸を前記後
輪軸々径と実質的同一幅の溝に支持すると共に、
その溝を有する壁に対し横方向の締付固定をした
ことを特徴とするものである。 To achieve the above object, the present invention provides a motorcycle in which the rear arm supporting the rear wheel axle is formed of a pipe with a rectangular cross section. A groove with a large width is provided on the side wall not facing the rear wheel, and a groove with substantially the same width as the diameter of the rear wheel axle is provided along the longitudinal direction of the pipe from the rear end of the pipe. Supported in a groove having substantially the same width as the diameter,
It is characterized by being fastened horizontally to the wall having the groove.
以下、本考案を図に示す実施例により説明す
る。
The present invention will be explained below with reference to embodiments shown in the drawings.
第１図において、１は車体フレーム３に搭載さ
れたエンジン、２はこのエンジン１によりチエン
４を介して駆動される後輪である。後輪２は後ア
ーム５の後端に支持され、その後アーム５は前端
側を車体アーム３に枢支されると共にその中間部
を緩衝器６により弾性支持されている。 In FIG. 1, 1 is an engine mounted on a vehicle body frame 3, and 2 is a rear wheel driven by the engine 1 via a chain 4. The rear wheel 2 is supported by the rear end of a rear arm 5, and the arm 5 is then pivotally supported by the vehicle body arm 3 at its front end side and elastically supported by a shock absorber 6 at its intermediate portion.
第２〜５図に詳細を示すように、後アーム５は
断面角型のスチール型のパイプから形成されてお
り、それぞれ車体の左右両側に配置されて後輪軸
７を支持している。後輪軸７は軸受８を介して後
輪２のハブ２ａを軸支し、ハブ２ａは側面に固定
したスプロケツト９からチエン４を介してエンジ
ン１の動力を入力する。１０，１１はカラーであ
る。 As shown in detail in FIGS. 2 to 5, the rear arms 5 are formed from steel pipes with a square cross section, and are disposed on both left and right sides of the vehicle body to support the rear wheel shaft 7. The rear wheel shaft 7 pivotally supports a hub 2a of the rear wheel 2 via a bearing 8, and the hub 2a receives power from the engine 1 via a chain 4 from a sprocket 9 fixed to its side surface. 10 and 11 are colors.
後アーム５後部の両側壁には、それぞれ後端か
らパイプ長手方向に沿つて延長する溝１２，１３
が設けてある。このうち、後輪２と対面する側の
壁に設けた溝１２は、後輪軸７の軸径よりも大き
な幅にしてある。かつこの広幅の溝１２にはその
内側に沿い、かつパイプ内空間を閉塞するように
した断面Ｕ状の泥浸入防止板１４が溶接されてい
る。一方、後輪２に対面しない側の壁に設けた溝
１３は、後輪軸７の軸径と実質的に同一の幅にし
てあり、かつその溝１３を有する壁の内面側には
同じ幅の溝を設けたプレート１５が溶接されてい
る。また、このプレート１５を溶接した壁には、
チエン引き具１７を係止するための係止ピン１８
が固定されている。 Grooves 12 and 13 are provided on both walls of the rear part of the rear arm 5, respectively, extending from the rear end along the longitudinal direction of the pipe.
is provided. Of these, the groove 12 provided in the wall on the side facing the rear wheel 2 has a width larger than the shaft diameter of the rear wheel shaft 7. A mud infiltration prevention plate 14 having a U-shaped cross section is welded along the inside of the wide groove 12 to close the inner space of the pipe. On the other hand, the groove 13 provided on the wall that does not face the rear wheel 2 has a width that is substantially the same as the diameter of the rear wheel shaft 7, and the inner surface of the wall that has the groove 13 has the same width. A grooved plate 15 is welded. Also, on the wall to which this plate 15 is welded,
Locking pin 18 for locking the chain puller 17
is fixed.
チエン引き具１７は、その周面に軸心からの半
径が少しづつ異なる凹部を段階的に多数設けてお
り、第３図に矢印で示すようにチエン引き具１７
を回動させて多数の凹部の一つを係止ピン１８に
選択的に係合させることにより後輪軸７を溝１３
に沿つて移動させ、チエン４の張力を変化させる
ことができる。 The chain puller 17 has a large number of recesses with slightly different radii from the axis on its circumferential surface.As shown by arrows in FIG.
By rotating the rear wheel shaft 7 and selectively engaging one of the many recesses with the locking pin 18, the rear wheel shaft 7 is fitted into the groove 13.
can be moved along the chain 4 to change the tension of the chain 4.
上述のような溝１２，１３を有する後アーム５
を両側に配置して後輪軸７は支持すると、溝１２
と１３とは溝幅が異なるため溝１３には後輪軸７
は支持されるが、溝１２には支持されない。左右
の後アーム５，５は、このような後輪軸７の支持
状態において内側にはカラー１０，１１は軸受８
等を介在させ、また両外側にはそれぞれチエン引
き具１７を介在させた状態にして後輪軸７端部に
螺合した締付ナツト１６により横方向から締付固
定される。この締付により、後輪２とは対面しな
い溝１３を有する側のパイプ壁面だけが締付力を
負荷され、後輪２と対面する溝１２を有する側の
パイプ壁面は締付力を負荷されない。そのため従
来の後輪軸の支持構造のように角型パイプの断面
が締付力により変形するようなことはない。 Rear arm 5 with grooves 12, 13 as described above
are arranged on both sides to support the rear wheel shaft 7, the groove 12
and 13 have different groove widths, so groove 13 has rear wheel shaft 7.
is supported, but not supported by the groove 12. When the left and right rear arms 5, 5 are supported by the rear wheel shaft 7, the collars 10, 11 are mounted on the inside with bearings 8.
etc., and a chain puller 17 is interposed on each outer side, and the rear wheel shaft 7 is tightened and fixed from the lateral direction by a tightening nut 16 screwed onto the end of the rear wheel shaft 7. Due to this tightening, only the pipe wall surface on the side having the groove 13 that does not face the rear wheel 2 is loaded with a clamping force, and the pipe wall surface on the side having the groove 12 facing the rear wheel 2 is not loaded with a clamping force. . Therefore, unlike the conventional rear wheel shaft support structure, the cross section of the square pipe does not deform due to the tightening force.
第６〜８図に示す実施態様は、後アーム５をア
ルミニウム合金押出材の角型パイプで形成した場
合を示すものである。 The embodiments shown in FIGS. 6 to 8 show the case where the rear arm 5 is formed of a square pipe made of extruded aluminum alloy material.
この支持構造のアルミニウム合金材からなるた
め、後アーム５の肉厚やプレート１５の幅などが
上記実施例の場合よりも厚くなつている。また、
泥浸入防止板１４′は溝１２には沿わせず、パイ
プの内側に設けるようにしてある。 Since this support structure is made of an aluminum alloy material, the thickness of the rear arm 5 and the width of the plate 15 are thicker than in the above embodiment. Also,
The mud intrusion prevention plate 14' is not placed along the groove 12, but is provided inside the pipe.
この構造の場合も、上記実施例同様に後輪軸７
の横方向の締付けに際しては、後輪２とは対面し
ない溝１３を有する壁面のみが締付けられ、溝１
２を有する壁面は締付けられないため、後アーム
５の断面変形は発生しない。 In the case of this structure as well, the rear wheel shaft 7
When tightening in the lateral direction, only the wall surface having the groove 13 that does not face the rear wheel 2 is tightened, and the groove 1
2 is not tightened, so no cross-sectional deformation of the rear arm 5 occurs.
上述したように本考案による後輪軸支持構造
は、後輪軸を支持する後アームを断面角型のパイ
プで形成した自動二輪車において、前記後アーム
のパイプに後輪と対面する側の壁には後輪軸々径
よりも大きな幅の溝を、また後輪と対面しない側
の壁には後輪軸々径と実質的同一幅の溝をそれぞ
れパイプ後端からパイプ長手方向に沿つて設け、
前記後輪軸を前記後輪軸々径と実質的同一幅の溝
に支持すると共に、その溝を有する壁に対し横方
向の締付固定するので、横方向の締付力は後輪に
対面しない側の壁面だけが支持するため後アーム
の断面変形が発生することがない。そのため後ア
ームは本来の奇麗な角型外形を維持することがで
きる。
As described above, the rear wheel axle support structure according to the present invention is a motorcycle in which the rear arm supporting the rear wheel axle is formed of a pipe with a square cross section. A groove with a width larger than the diameter of the wheel axles is provided, and a groove with a width substantially the same as the diameter of the rear wheel axle is provided on the side wall not facing the rear wheel along the longitudinal direction of the pipe from the rear end of the pipe,
The rear wheel axle is supported in a groove having substantially the same width as the diameter of the rear wheel axle, and is laterally tightened and fixed to a wall having the groove, so that the lateral tightening force is applied to the side that does not face the rear wheel. Since it is supported only by the wall surface of the rear arm, cross-sectional deformation of the rear arm does not occur. Therefore, the rear arm can maintain its original beautiful square shape.
第１図は本考案の後輪軸支持構造を有する自動
二輪車の要部を示す側面図、第２図は同後輪軸支
持構造部分を拡大して示す縦断面図、第３図は同
構造の後アーム後部を示す側面図、第４図は第３
図の−矢視断面図、第５図は第３図の−
矢視断面図、第６図は他の実施態様による後アー
ム後部を示す側面図、第７図は第６図の−矢
視断面図、第８図は第６図の−矢視断面図で
ある。
２……後輪、５……後アーム、７……後輪軸、
１０，１１……カラー、１２，１３……溝、１５
……プレート、１６……ナツト。
Fig. 1 is a side view showing the main parts of a motorcycle having the rear axle support structure of the present invention, Fig. 2 is a vertical sectional view showing an enlarged portion of the rear axle support structure, and Fig. 3 is a rear view of the rear axle support structure of the present invention. Side view showing the rear part of the arm, Figure 4 is the third
5 is a sectional view taken in the direction of the arrow in the figure.
6 is a side view showing the rear part of the rear arm according to another embodiment; FIG. 7 is a sectional view taken in the - arrow direction of FIG. 6; and FIG. 8 is a sectional view taken in the - arrow direction of FIG. 6. be. 2... Rear wheel, 5... Rear arm, 7... Rear wheel axle,
10,11...Color, 12,13...Groove, 15
...Plate, 16...Natsuto.
Claims (1)
で形成した自動二輪車において、前記後アームの
パイプに後輪と対面する側の壁には後輪軸々径よ
りも大きな幅の溝を、また後輪と対面しない側の
壁には後輪軸々径と実質的同一幅の溝をそれぞれ
パイプ後端からパイプ長手方向に沿つて設け、前
記後輪軸を前記後輪軸々径と実質的同一幅の溝に
支持すると共に、その溝を有する壁に対し横方向
の締付固定をしたことを特徴とする自動二輪車の
後輪軸支持構造。 In a motorcycle in which the rear arm supporting the rear wheel axle is formed of a pipe with a rectangular cross section, the pipe of the rear arm has a groove on the side wall facing the rear wheel that has a width larger than the diameter of the rear wheel axle. Grooves having substantially the same width as the diameters of the rear wheel axles are provided in the wall on the side that does not face the wheels, each extending from the rear end of the pipe in the longitudinal direction of the pipe, What is claimed is: 1. A rear wheel shaft support structure for a motorcycle, characterized in that the rear wheel shaft support structure for a motorcycle is supported by a wall having a groove, and is laterally tightened and fixed to a wall having a groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14780483U JPS6054692U (en) | 1983-09-24 | 1983-09-24 | Motorcycle rear axle support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14780483U JPS6054692U (en) | 1983-09-24 | 1983-09-24 | Motorcycle rear axle support structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6054692U JPS6054692U (en) | 1985-04-17 |
| JPH0217992Y2 true JPH0217992Y2 (en) | 1990-05-21 |
Family
ID=30328579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14780483U Granted JPS6054692U (en) | 1983-09-24 | 1983-09-24 | Motorcycle rear axle support structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6054692U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60110589A (en) * | 1983-11-22 | 1985-06-17 | 本田技研工業株式会社 | Rear fork for motorcycle |
| JPH0784198B2 (en) * | 1985-09-13 | 1995-09-13 | ヤマハ発動機株式会社 | Rear wheel support structure for motorcycles |
-
1983
- 1983-09-24 JP JP14780483U patent/JPS6054692U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6054692U (en) | 1985-04-17 |
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