JPS6053484A - Motorcycle - Google Patents

Motorcycle

Info

Publication number
JPS6053484A
JPS6053484A JP16098183A JP16098183A JPS6053484A JP S6053484 A JPS6053484 A JP S6053484A JP 16098183 A JP16098183 A JP 16098183A JP 16098183 A JP16098183 A JP 16098183A JP S6053484 A JPS6053484 A JP S6053484A
Authority
JP
Japan
Prior art keywords
vehicle body
center line
propulsion shaft
motorcycle
output shaft
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
Application number
JP16098183A
Other languages
Japanese (ja)
Inventor
長滝 基
稲垣 剛史
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.)
Honda Motor Co Ltd
Original Assignee
Honda 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP16098183A priority Critical patent/JPS6053484A/en
Priority to US06/644,916 priority patent/US4607718A/en
Priority to FR8413455A priority patent/FR2551419B1/en
Priority to DE19843432179 priority patent/DE3432179A1/en
Publication of JPS6053484A publication Critical patent/JPS6053484A/en
Pending legal-status Critical Current

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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】 本発明は、車体に搭載されたエンジンの出力軸を、後輪
の一側方に配置される後輪駆動用推進軸にユニバーサル
ジヨイントを介して連結した自動二輪車に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a motorcycle in which the output shaft of an engine mounted on a vehicle body is connected to a rear wheel drive propulsion shaft disposed on one side of the rear wheels via a universal joint. .

従来、この種自動二輪車では、後輪駆動用の推進軸を車
体の前後方向中心線と平行に配置しており、しかも推進
軸と後輪との間には両者の干渉を避けるために所定の間
隔を保つ必要があるため、ユニバーサルジヨイントを車
体の前後方向中心線に近づけるにも限界があり、これが
車体の横幅の短縮化、即ちスリム化を図る上に障害とな
っている。
Conventionally, in this type of motorcycle, the propulsion shaft for driving the rear wheels has been arranged parallel to the longitudinal center line of the vehicle body, and there is a predetermined space between the propulsion shaft and the rear wheel to avoid interference between the two. Because of the need to maintain the spacing, there is a limit to how close the universal joint can be to the longitudinal centerline of the vehicle body, and this is an obstacle to reducing the width of the vehicle body, that is, making it slimmer.

そこで、本発明は推進軸と後輪との間に所定間隙を確保
しつ\ユニバーサルジヨイントを車体の前後方向中心線
に充分に近付けられるようにして車体をスリムにし、も
って車体のバンク角が大きく得られて操縦性が良好な前
記自動二輪車を提供することを目的とするもので、その
特徴は、推進軸を、それが車体前方に向って車体の前後
方向中心線に近づくよう、該中心線に対して傾斜させた
ところにある。
Therefore, the present invention aims to make the car body slim by ensuring a predetermined gap between the propulsion shaft and the rear wheels and by bringing the universal joint sufficiently close to the longitudinal centerline of the car body, thereby reducing the bank angle of the car body. The purpose of this invention is to provide the above-mentioned motorcycle which has a large gain and good maneuverability, and its feature is that the propulsion shaft is moved toward the front of the vehicle body so that it approaches the center line of the vehicle body in the longitudinal direction. It is located at an angle to the line.

以下、図面により本発明の実施例について説明する。Embodiments of the present invention will be described below with reference to the drawings.

先ず、第1実施例を示す第1図及び第2図において、自
動二輪車Mの車体Bには、V型(または水平対向型)2
気筒エンジンEが操縦者用ステップSの前方に搭載され
る。Wfは前輪、Wfは後輪を示す。
First, in FIGS. 1 and 2 showing the first embodiment, a body B of a motorcycle M has a V-type (or horizontally opposed type) 2
A cylinder engine E is mounted in front of the step S for the operator. Wf indicates a front wheel, and Wf indicates a rear wheel.

エンジンEはクランク軸1を支持するクランクケース2
と、ピストン3,3′を収容する一対のシリンダブロッ
ク4,4′と、クランクケース2の後部に連設されてク
ランク軸1と平行な出力軸5を支持するミッションケー
ス6とを備えており、両シリンダブロック4,4′はク
ランク軸1に沿ってピストン3,3′の軸線間距離αだ
けオフセットされる。
The engine E has a crankcase 2 that supports the crankshaft 1.
, a pair of cylinder blocks 4 and 4' that accommodate pistons 3 and 3', and a transmission case 6 that is connected to the rear of the crankcase 2 and supports an output shaft 5 that is parallel to the crankshaft 1. , both cylinder blocks 4, 4' are offset along the crankshaft 1 by a distance α between the axes of the pistons 3, 3'.

上記エンジンEは次のように配置される。即ち第2図に
示すように、両シリンダブロック4,4′は車体Bの前
後方向中心線Xを挟んで車体Bの左右二方向に分けられ
、且つ前側のシリンダブロック4のヘッド部が斜め後方
を、また後側のシリンダブロック4′が斜め前方を向(
ようにクランク軸1が前記中心線Xに対し所定角度θ傾
斜して配置される。この場合、上記角度θは、両シリン
ダブロック4,4′のヘッド部中心を結ぶ直線tが前記
中心線Xと直交するように選定されることが望ましい。
The engine E is arranged as follows. That is, as shown in FIG. 2, both cylinder blocks 4 and 4' are divided into left and right sides of the vehicle body B across the longitudinal center line X of the vehicle body B, and the head portion of the front cylinder block 4 is diagonally rearward. Also, the rear cylinder block 4' faces diagonally forward (
The crankshaft 1 is arranged to be inclined at a predetermined angle θ with respect to the center line X. In this case, the angle θ is desirably selected such that the straight line t connecting the centers of the head portions of both cylinder blocks 4, 4' is perpendicular to the center line X.

こうすることによりステップSから各シリンダブロック
4,4までの距離が等しくされる。
By doing this, the distances from step S to each cylinder block 4, 4 are made equal.

また出力軸5はクランク軸1から車体Bの一側方へ距離
すだげオフセットされ、この出力軸5の後端にユニバー
サルジヨイント7を介して推進軸8が首振り自在に連結
される。この推進軸8はその回転により後輪Wrを駆動
することができる。
Further, the output shaft 5 is offset by a short distance from the crankshaft 1 to one side of the vehicle body B, and a propulsion shaft 8 is swingably connected to the rear end of the output shaft 5 via a universal joint 7. This propulsion shaft 8 can drive the rear wheels Wr by its rotation.

推進軸8は、クランク軸1と同様に前記中心線Xに対し
て角度θ傾斜して配置され、したがって推進軸8は前方
に行くに従い前記中心線Xに近づいていく。この推進軸
8は、その保護のために、後輪W’rを支持するリヤフ
ォーク9の一方の中空脚体9α内に収容される。またユ
ニバーサルジヨイント7の首振中心0は、推進軸8がリ
ヤフォーク9と共に円滑に上下揺動をし得るよう、リヤ
フォーク9のピボット軸線P上に配置される。
Like the crankshaft 1, the propulsion shaft 8 is arranged to be inclined at an angle θ with respect to the center line X, and therefore the propulsion shaft 8 approaches the center line X as it moves forward. For protection, the propulsion shaft 8 is housed in one hollow leg 9α of a rear fork 9 that supports the rear wheel W'r. Further, the swing center 0 of the universal joint 7 is arranged on the pivot axis P of the rear fork 9 so that the propulsion shaft 8 can smoothly swing up and down together with the rear fork 9.

上記のように推進軸8を傾斜させると、推進軸8と後輪
Wr間を許容最小間隔d〜′:A容値まで狭ばめたとき
、クランク軸1と出力軸5間のオフセット量すを最小限
に抑えることができ、延いてはミッションケース6のコ
ンパクト化を図ることができ、また同時にユニバーサル
ジヨイント7を前記中心線Xに近づけることができる。
When the propulsion shaft 8 is tilted as described above, when the distance between the propulsion shaft 8 and the rear wheel Wr is narrowed to the allowable minimum distance d~':A capacity value, the offset amount between the crankshaft 1 and the output shaft 5 is can be minimized, and the transmission case 6 can be made more compact. At the same time, the universal joint 7 can be moved closer to the center line X.

第3図は本発明の第2実施例を示すもので、エンジンE
のクランク軸1及び出力軸5を車体Hの前後方向中心線
Xと平行に配置した点を除けば前実施例と同様構成であ
り、第3図中、前実施例と対応する部分にはそれと同一
の符号を付す。
FIG. 3 shows a second embodiment of the present invention, in which the engine E
The structure is the same as that of the previous embodiment except that the crankshaft 1 and output shaft 5 are arranged parallel to the longitudinal center line X of the vehicle body H, and in FIG. The same symbols are attached.

また第4図は本発明の第3実施例を示すもので、単一の
シリンダブロック14を前傾としたエンジンEのクラン
ク軸1を車体Bの前後方向中心線Xに直交するように配
置すると共に、その出力軸5を前記中心線Xと平行に配
置した点を除けば前記第1実施例と同様構成であり、第
4図中第1実施例と対応する部分にはそれと同一の符号
を伺ず。
FIG. 4 shows a third embodiment of the present invention, in which the crankshaft 1 of an engine E with a single cylinder block 14 tilted forward is arranged so as to be orthogonal to the longitudinal center line X of the vehicle body B. The structure is the same as that of the first embodiment except that the output shaft 5 is arranged parallel to the center line X, and the same reference numerals are used in FIG. Don't ask.

尚、この第2実施例においては、MdA図のように出力
軸5を推進軸8と共に前記中心軸Xに対して傾斜させて
もよい。
In this second embodiment, the output shaft 5 and the propulsion shaft 8 may be tilted with respect to the central axis X as shown in Fig. MdA.

以上のように本発明によれば、後輪駆動用の推進軸を、
それが車体前方に向って車体の前後方向中心線に近づく
よう、該中心線に対して傾斜させたので、推進軸と後輪
間に所定間隔を確保しつつ、出力軸と推進軸とを連結す
るユニバーサルジヨイントを前記中心線に近づけること
ができ、車体の横幅の減少、即ちスリム化を達成し、こ
れに伴い車体外側方に突出する左右のステップ間隔も狭
ばめられ、車体のバンク角を増大させて操縦性の向上に
寄与することができる。
As described above, according to the present invention, the propulsion shaft for rear wheel drive is
It is tilted with respect to the center line of the vehicle body in the front-rear direction so that it approaches the longitudinal center line of the vehicle body, so the output shaft and the propulsion shaft are connected while ensuring a predetermined distance between the propulsion shaft and the rear wheels. The universal joint can be moved closer to the center line, reducing the width of the car body, making it slimmer. Along with this, the distance between the left and right steps that protrude outwards from the car body is also narrowed, and the bank angle of the car body is reduced. can contribute to improving maneuverability.

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

第1図は本発明の第1実施例の側面図、第2図はその平
面図、第3図は第2実施例の平面図、第4図は第3実施
例の平面図、第4A図は第3実施例の変形例を示す部分
平面図である。 M・・・自動二輪車、B・・・車体、E・・・エンジン
、X・・・車体の前後方向中心線、θ・・・傾斜角度、
5・・・出力軸、7・・・ユニバーサルジヨイント、8
・・・推進軸 特許 出願人 本田技研工業株式会社
Fig. 1 is a side view of the first embodiment of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a plan view of the second embodiment, Fig. 4 is a plan view of the third embodiment, and Fig. 4A. FIG. 3 is a partial plan view showing a modification of the third embodiment. M...Motorcycle, B...Vehicle body, E...Engine, X...Front-back center line of the vehicle body, θ...Inclination angle,
5...Output shaft, 7...Universal joint, 8
...Propulsion shaft patent Applicant: Honda Motor Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] 車体に搭載されたエンジンの出力軸を、後輪の一側方に
配置される後輪駆動用の推進軸にユニバーサルジヨイン
トを介して連結した自動二輪車において、前記推進軸を
、それが車体前方に向って車体の前後方向中心線に近づ
くよう、該中心線に対して傾斜させたことを特徴とする
自動二輪車。
In a motorcycle in which the output shaft of an engine mounted on the vehicle body is connected via a universal joint to a propulsion shaft for rear wheel drive located on one side of the rear wheel, the propulsion shaft is connected to the front of the vehicle body. A motorcycle characterized in that the motorcycle is inclined with respect to the center line of the vehicle body in the longitudinal direction so as to approach the center line of the vehicle body in the longitudinal direction.
JP16098183A 1983-09-01 1983-09-01 Motorcycle Pending JPS6053484A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP16098183A JPS6053484A (en) 1983-09-01 1983-09-01 Motorcycle
US06/644,916 US4607718A (en) 1983-09-01 1984-08-27 Motorcycle
FR8413455A FR2551419B1 (en) 1983-09-01 1984-08-30 MOTORCYCLE WITH DRIVE SHAFT
DE19843432179 DE3432179A1 (en) 1983-09-01 1984-08-31 MOTORCYCLE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16098183A JPS6053484A (en) 1983-09-01 1983-09-01 Motorcycle

Publications (1)

Publication Number Publication Date
JPS6053484A true JPS6053484A (en) 1985-03-27

Family

ID=15726299

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16098183A Pending JPS6053484A (en) 1983-09-01 1983-09-01 Motorcycle

Country Status (1)

Country Link
JP (1) JPS6053484A (en)

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