JPS5938129A - Motorcycle - Google Patents

Motorcycle

Info

Publication number
JPS5938129A
JPS5938129A JP57147192A JP14719282A JPS5938129A JP S5938129 A JPS5938129 A JP S5938129A JP 57147192 A JP57147192 A JP 57147192A JP 14719282 A JP14719282 A JP 14719282A JP S5938129 A JPS5938129 A JP S5938129A
Authority
JP
Japan
Prior art keywords
engine
body frame
respect
cylinder blocks
rear cylinder
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
JP57147192A
Other languages
Japanese (ja)
Inventor
Yutaka Urano
浦野　豊
Katsu Shirokura
白倉　克
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 JP57147192A priority Critical patent/JPS5938129A/en
Publication of JPS5938129A publication Critical patent/JPS5938129A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/24—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M7/00—Motorcycles characterised by position of motor or engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/02—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1808—Number of cylinders two

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Automatic Cycles, And Cycles In General (AREA)

Abstract

PURPOSE:To lessen a space occupied by an engine and reduce the wheel base of a motorcycle by forming a longitudinal center line, which passes through the cylinder center, so as to slant down forward with respect to the body frame. CONSTITUTION:An engine E is mounted on a body frame F, and a crankshaft 1 is about orthogonal to the longitudinal direction of the frame F, while front and rear cylinder blocks 2, 3 of the crankshaft 1 are arranged, with a crank case 4 interposed between them, slantingly forward in the longitudinal direction with respect to the frame F. A longitudinal center line L-L passing through the centers of cylinders 2a, 3a of front and rear cylinder blocks 2, 3 are slanted down forward and make a tilt angle with respect to a horizontal line H-H. A transmission 13 is arranged below and in one body with the engine E, and the output shaft 14 of the transmission 13 is connected to the rear wheel W through a chain transmission mechanism 15 as usual.

Description

【発明の詳細な説明】 本発明は水平対向型エンジンを搭載した自動二輪車に関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a motorcycle equipped with a horizontally opposed engine.

従来水平対向型エンジンを搭載した自動二輪車において
、前記エンジンの相対向する２つのシリンダブロックを
車体フレームの前後方向に配置するようにしたものでは
、前記２つのシリンダブロックはそれらのシリンダの中
心を通る縦中心線が略水平になるようにしたものが知ら
れている。Conventionally, in a motorcycle equipped with a horizontally opposed engine, in which two opposing cylinder blocks of the engine are arranged in the longitudinal direction of the vehicle body frame, the two cylinder blocks pass through the center of the cylinders. It is known that the vertical center line is approximately horizontal.

′ところがかかる従来のものでは当然エンジンは車体フ
レームの前後方向に広いスペースを占有するので、自動
五輪車のホイールペースが長（なるばかりでなく後部シ
リンダブロックが邪魔になって出力を取出しに（い不都
合があった。'However, in conventional engines, the engine naturally occupies a large space in the front and rear directions of the body frame, which not only increases the wheel pace of the five-wheeled car, but also makes it difficult to extract output due to the rear cylinder block getting in the way. There was an inconvenience.

そこで本発明は水平対向型エンジンの相対向する２つの
前、後部シリンダブロックは、それらのシリンダの中心
を通る縦中心線が車体フレームに対して前下りに傾斜す
るように前傾配置して自動二輪車のホイールベースを短
縮できるようにするとともに出力取出しが容易になるよ
うにし、さらにエンジンの上方にその吸気系を、またそ
の下方にそのミッションをそれぞれ配置して、それらが
車体フレームにコンパクトに纒めて体裁よく配置される
ようにした自動二輪車を提供することを主な目的とする
ものである。Therefore, in the present invention, the two opposing front and rear cylinder blocks of a horizontally opposed engine are automatically arranged so that the vertical center line passing through the centers of these cylinders is tilted forward and downward with respect to the vehicle body frame. In addition to making it possible to shorten the wheelbase of a motorcycle and make output output easier, the intake system is placed above the engine, and the transmission is placed below it, so that they can be compactly housed in the body frame. The main purpose of this invention is to provide a motorcycle that can be arranged in an attractive manner.

以下、図面により本発明の一実施例について説明すると
、自動二輪車の車体フレームＦには、水冷式エンジンＥ
が搭載され、該エンジンＥのクランク軸１は、車体フレ
ームＦの前後方向に略直交しており、その前、後部シリ
ンダブロック２゜３はクランクケース４を挟んで車体フ
レームＦに対して前後方向に前傾配置され、前、後部シ
リンダブロック２，３のシリンダ２ａ、３αの中心を通
る縦中心線Ｌ−Ｌは前下りに傾斜され、水平線Ｈ−ＩＩ
に対して傾斜角αを有する。而してこの傾斜角αは１５
°〜５５°の範囲に設定される。Hereinafter, one embodiment of the present invention will be described with reference to the drawings.A body frame F of a motorcycle is equipped with a water-cooled engine E.
The crankshaft 1 of the engine E is approximately orthogonal to the longitudinal direction of the vehicle body frame F, and the front and rear cylinder blocks 2° 3 extend longitudinally relative to the vehicle body frame F with the crankcase 4 in between. The vertical center line L-L passing through the centers of the cylinders 2a and 3α of the front and rear cylinder blocks 2 and 3 is tilted forward downward, and the horizontal line H-II
has an inclination angle α with respect to Therefore, this inclination angle α is 15
It is set in the range of 55° to 55°.

車体フレームＦのヘッドパイプ５より後方に向って下方
にのびるダウンチューブ６には、前記エンジンＥの冷却
用ラジェタ１が支持されており、このラジエタ７、車体
フレームＦ上に搭載される燃料タンク８およびエンジン
Ｅとで側面三角形状の空間Ｃが形成され、この空間Ｃに
前記エンジンＥの吸気系Ｉｎ、すなわちエアクリーナ９
、キャプレタ１０、およびそれらとエンジンＥの吸気ポ
ートとを接続する吸気管１１等が配備され、さらに前記
エアクリーナ９上にはオイルタンク１２が配置されてい
る。A cooling radiator 1 for the engine E is supported on a down tube 6 extending rearward and downward from the head pipe 5 of the vehicle body frame F, and this radiator 7 and a fuel tank 8 mounted on the vehicle body frame F are supported. A space C having a triangular side surface is formed with the engine E and the intake system In of the engine E, that is, the air cleaner 9.
, a capretor 10, an intake pipe 11 connecting them to an intake port of the engine E, and the like are provided, and an oil tank 12 is further provided above the air cleaner 9.

エンジンＥの下方には、これと一体のミッション１３が
配置され、このミッション１３の出力軸１４は通常のよ
うにチェン伝動機構１５を介して後車輪Ｗに連動される
。而して前記エンジンＥの前述の前傾配置によって前記
出力軸１４の後方には後部シリンダブロック３が存在し
ないので出力軸１４かもの出力取出が容易になる。A transmission 13 is disposed below the engine E, and an output shaft 14 of the transmission 13 is interlocked with the rear wheels W via a chain transmission mechanism 15 as usual. Since the rear cylinder block 3 is not present behind the output shaft 14 due to the forward-inclined arrangement of the engine E, the output from the output shaft 14 can be easily extracted.

前、後部シリンダブロック２，３の下面に開口する排気
ポートには排気管１６が接続され、この排気管１６は、
エンジンＥの下部を通って車体フレームの後方へのび排
気チャンバ１８に接続されている。An exhaust pipe 16 is connected to exhaust ports opening on the lower surfaces of the front and rear cylinder blocks 2 and 3, and this exhaust pipe 16
It extends through the lower part of the engine E to the rear of the vehicle body frame and is connected to the exhaust chamber 18 .

以上のように本発明によれば、水平対向型エンジンの前
、後部シリンダブロックはそれらのシリンダの中心を通
る縦中心線が車体フレームに対して前下りに傾斜するよ
うに前傾配置したので、前。As described above, according to the present invention, the front and rear cylinder blocks of the horizontally opposed engine are arranged so as to be tilted forward so that the vertical center line passing through the centers of these cylinders is inclined forwardly and downwardly with respect to the vehicle body frame. Before.

後部シリンダブロックを車体フレームの前後方向に配置
したにも拘らず該エンジンが車体フレームの前後方向に
占めるスペースを少なくして自動二輪車のホイールベー
スな短縮することができ、また前記ミッションの出力軸
からの出力取出が容易になる。また前記エンジンの上方
に該エンジンの吸気系を、また下方に該エンジンのミッ
ションヲそれぞれ配置したので、エンジン、その吸気系
およびミッションをコンパクトに整然と纒めて車体フレ
ームに配置することができ外観上の体裁もきわめてよい
ものである。Even though the rear cylinder block is arranged in the longitudinal direction of the vehicle body frame, the space occupied by the engine in the longitudinal direction of the vehicle body frame can be reduced and the wheelbase of the motorcycle can be shortened. It becomes easier to extract the output. In addition, the engine's intake system is placed above the engine, and the engine's mission is placed below, so the engine, its intake system, and mission can be arranged compactly and neatly on the body frame, which improves the appearance. The presentation is also very good.

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

図面は本発明の一実施例を示すもので、第１図は本発明
自動二輪車の側面図、第２図はエンジンとその補「媚の
平面図、第３図はエンジンと補機類との分解斜視図であ
る。 ２．３・・・前、後部シリンダブロック、１３・・・ミ
ッション、Ｅ・・・エンジン、Ｆ・・・車体フレーム、
ＩｒＬ・・・吸気系、Ｌ−Ｌ・・・縦中心線 特許出願人　本田技研工業株式会社The drawings show one embodiment of the present invention; Fig. 1 is a side view of the motorcycle of the invention, Fig. 2 is a plan view of the engine and its auxiliaries, and Fig. 3 is a diagram of the engine and auxiliary machinery. It is an exploded perspective view. 2.3...Front and rear cylinder blocks, 13...Mission, E...Engine, F...Vehicle frame,
IrL...Intake system, L-L...Vertical center line Patent applicant Honda Motor Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] 車体フレームＣＦ）に、水平対向型エンジンＣＥ）を、
その相対向する前、後部シリンダブロック（２，３）が
車体フレームＣＦ’）の前後方向を向くように配置して
なる自動二輪車において、前記前、後部シリンダブロッ
ク（２，３）は、それらのシリンダの中心を通る縦中心
線（Ｌ−Ｌ）が車体フレームＣＦ）に対して画工りに傾
斜するように前傾配置され、かつ前記エンジン（Ｅ）の
上方に該エンジン（Ｅ）の吸気系（ＩｆＬ）がまたその
下方に該エンジンＣＥ）のミッション（１３）がそれぞ
れ配置されてなる、自動二輪車。A horizontally opposed engine CE) is mounted on the body frame CF).
In a motorcycle in which the opposing front and rear cylinder blocks (2, 3) are arranged so as to face the longitudinal direction of the vehicle body frame CF', the front and rear cylinder blocks (2, 3) are The engine (E) is arranged so that its vertical center line (L-L) passing through the center of the cylinder is inclined forward with respect to the vehicle body frame CF), and the intake system of the engine (E) is arranged above the engine (E). (IfL) and a transmission (13) of the engine CE) are arranged below the two-wheeled motor vehicle.
JP57147192A 1982-08-25 1982-08-25 Motorcycle Pending JPS5938129A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57147192A JPS5938129A (en) 1982-08-25 1982-08-25 Motorcycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57147192A JPS5938129A (en) 1982-08-25 1982-08-25 Motorcycle

Publications (1)

Publication Number Publication Date
JPS5938129A true JPS5938129A (en) 1984-03-01

Family

ID=15424641

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57147192A Pending JPS5938129A (en) 1982-08-25 1982-08-25 Motorcycle

Country Status (1)

Country Link
JP (1) JPS5938129A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61190785U (en) * 1985-05-21 1986-11-27
US4815554A (en) * 1985-01-17 1989-03-28 Honda Giken Kogyo Kabushiki Kaisha Air cleaner and carburetor layout for motorcycles
JPH02254089A (en) * 1989-03-29 1990-10-12 Yamaha Motor Co Ltd Motor bicycle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58174072A (en) * 1982-04-07 1983-10-13 ヤマハ発動機株式会社 Motorcycle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58174072A (en) * 1982-04-07 1983-10-13 ヤマハ発動機株式会社 Motorcycle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4815554A (en) * 1985-01-17 1989-03-28 Honda Giken Kogyo Kabushiki Kaisha Air cleaner and carburetor layout for motorcycles
US4995471A (en) * 1985-01-17 1991-02-26 Honda Giken Kogyo Kabushiki Kaisha Air cleaner and carburetor layout for motorcycles
JPS61190785U (en) * 1985-05-21 1986-11-27
JPH02254089A (en) * 1989-03-29 1990-10-12 Yamaha Motor Co Ltd Motor bicycle

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