JPS60179325A - Unit swing type car - Google Patents

Unit swing type car

Info

Publication number
JPS60179325A
JPS60179325A JP59034447A JP3444784A JPS60179325A JP S60179325 A JPS60179325 A JP S60179325A JP 59034447 A JP59034447 A JP 59034447A JP 3444784 A JP3444784 A JP 3444784A JP S60179325 A JPS60179325 A JP S60179325A
Authority
JP
Japan
Prior art keywords
duct
pivot shaft
pivot
engine
front part
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
Application number
JP59034447A
Other languages
Japanese (ja)
Other versions
JPH0571437B2 (en
Inventor
Masakazu Nakamichi
中道 正和
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.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha 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 Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP59034447A priority Critical patent/JPS60179325A/en
Publication of JPS60179325A publication Critical patent/JPS60179325A/en
Publication of JPH0571437B2 publication Critical patent/JPH0571437B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00Arrangement in connection with cooling of propulsion units
    • B60K11/06Arrangement in connection with cooling of propulsion units with air cooling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B61/00Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00Other engines
    • F02B75/02Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

PURPOSE:To secure a foot placing base having a large area on the side of the front part of a rear cover by arranging a duct before a pivot shaft and between a pair of pivot brackets, thus reducing the lateral width of the front part of a power unit. CONSTITUTION:A power unit 30 is integrally formed of a 4-cycle engine 32, transmission apparatus 34, and rear wheels 36, and the front edge is connected to a chassis frame by a pivot shaft 78. A duct 90 for discharging engine cooling wind is connected to the left-side front surface of a cover 70 for an engine 32, and extends downward, passing through a space which is formed before the pivot shaft 78 and interposed between the right and left pivot trackets 80a and 80b. An exhaust pipe 92 passes before the pivot shaft 78 from the right side of the duct 90 and extends downward under a crankcase 52. Since the duct 90 is arranged, the lateral width of the front part of the power unit 30 is reduced.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は1強制空冷式エンジンを備えたユニットスイン
グ式車輌に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a unit swing type vehicle equipped with one forced air-cooled engine.

(従来技m) 2輪または3輪のスクータなどで1強制空冷式エンジン
と伝動装置と後輪とを一体化して動カニニットを形成し
、この動カニニットの前端をピボット軸によって車体フ
レームに連結したユニットスイング式車輌がある。この
種のスクータにおいて、上面が板状の足置台を、動カニ
ニットを覆うリヤカバーの前部側方まで広げ1足置空間
を拡大して変化に富んだ運転姿勢をとれるようにするこ
とが望まれている。しかし従来のこの種の車輌では、エ
ンジン冷却風を排出するダクトをエンジン側方に配設し
、動カニニットの下方にこの冷却風を導くようにしてい
た。このため動カニニット前部の横幅が増大し、これに
伴ってリヤカバーの前部の横幅が大きくなり、リヤカバ
ー前部の側方に大きい足置台を確深することが困難にな
っていた。
(Conventional technique m) A forced air-cooled engine, a transmission, and a rear wheel of a two- or three-wheeled scooter are integrated to form a moving crab unit, and the front end of this moving crab unit is connected to the vehicle body frame by a pivot shaft. There is a unit swing type vehicle. In this type of scooter, it is desirable to extend the footrest, which has a plate-like top surface, to the front side of the rear cover that covers the moving crab knit, increasing the footrest space and allowing a variety of driving postures. ing. However, in conventional vehicles of this type, a duct for discharging engine cooling air was placed on the side of the engine, and the cooling air was guided below the moving crab unit. For this reason, the width of the front part of the moving crab knit increases, and accordingly the width of the front part of the rear cover increases, making it difficult to securely install a large footrest on the side of the front part of the rear cover.

(発明の目的) 本発明はこのような事情に鑑みなされたものであり、動
カニニット前部の横幅な狭くシ、スクータ型車輌に適用
した場合にリヤカバーの前部側方に広い足置台を確保す
ることを可能にするユニットスイング式車輌を提供する
ことを目的とする。
(Purpose of the Invention) The present invention has been made in view of the above circumstances, and has the purpose of securing a wide footrest on the front side of the rear cover when applied to a scooter type vehicle due to the narrow width of the front part of the moving crab knit. The purpose of the present invention is to provide a unit swing type vehicle that makes it possible to

(発明の構成) 本発明は、この目的を達成するため、エンジン冷却風を
排出するダクトを、動カニニットの前部と車体フレーム
側のピボットブラケットとを連結するピボット軸の前方
に通したものである。すなわち2強制空冷式エンジンと
伝動装置と後輪とを一体化して動カニニットとし、この
動カニニットの前部を車体フレームに設けた左右一対の
ピボットブラケットにピボット軸によって上下揺動自在
に連結したユニットスイング式車輌において、前記エン
ジンの冷却風を排出するダクトを前記ピボット軸の前方
かつ前記左右一対のピボットブラケット間に配設したも
のである。
(Structure of the Invention) In order to achieve this object, the present invention has a duct for discharging engine cooling air that is passed in front of the pivot shaft that connects the front part of the moving crab unit and the pivot bracket on the vehicle body frame side. be. In other words, the two forced air-cooled engines, transmissions, and rear wheels are integrated into a dynamic crab unit, and the front part of the dynamic crab unit is connected to a pair of left and right pivot brackets provided on the vehicle body frame by a pivot shaft so that it can swing vertically. In the swing type vehicle, a duct for discharging cooling air from the engine is disposed in front of the pivot shaft and between the pair of left and right pivot brackets.

(実施例) 以下図面に基づき1本発明の詳細な説明する。(Example) The present invention will be described in detail below based on the drawings.

第1,2図は本発明の一実施例である2輪スクータの平
面図と側面図、第3図はその動カニニットの取付状態を
示す側面図、第4.5.61Jは動カニニットの正面図
と平面図と一部を断面した展開平面図である。第3図に
おいて符号10は車体フレームであり、ステアリング・
ヘッドチューブ12゜メインチューブ14.左右一対の
バックチューブ16 (16a、 16 b、第5図参
照)を備える。
Figures 1 and 2 are a plan view and a side view of a two-wheeled scooter that is an embodiment of the present invention, Figure 3 is a side view showing how the moving crab knit is installed, and Figure 4.5.61J is a front view of the moving crab knit. FIG. 2 is a diagram, a plan view, and a partially sectional developed plan view. In FIG. 3, numeral 10 is the vehicle body frame, and the steering wheel
Head tube 12° Main tube 14. A pair of left and right back tubes 16 (16a, 16b, see FIG. 5) is provided.

ヘッドチューブ12に保持された操向軸18の下部には
前フォーク20.前輪22が取付けられ。
At the bottom of the steering shaft 18 held in the head tube 12 is a front fork 20. The front wheel 22 is attached.

上部には操向ハンドル24が取付けられている。A steering handle 24 is attached to the top.

30は動カニニットであり、直立単気筒強制空冷式4サ
イクルエンジン32と、■ベルト無段変速機からなる伝
動装置34と、後輪36とを一体化したものである。エ
ンジン32は第6図に示すように横置きのクランク軸3
8を備え、その右端にマグネト発電機40が、左端に伝
動装置34の駆動側プーリ42がそれぞれ装着されてい
る。44はシリンz、46はシリンダヘッド、48はピ
ストン、50はコンロッド、51は頭上カム軸、52は
クランクケースである。クランクケース52の左側面に
は、後方へのびる伝動ケース54が一体的に形成され、
このケース54内に伝動装置34が収容されている。伝
動装置34の従動側プーリ56の回転は、遠心クラッチ
58.減速歯車6゜を介して後輪軸62に伝えられる。
Reference numeral 30 denotes a dynamic crab unit, which integrates an upright single-cylinder forced air-cooled four-stroke engine 32, a transmission device 34 consisting of a belt continuously variable transmission, and a rear wheel 36. The engine 32 has a horizontal crankshaft 3 as shown in FIG.
8, a magneto generator 40 is attached to its right end, and a drive pulley 42 of the transmission device 34 is attached to its left end. 44 is a cylinder z, 46 is a cylinder head, 48 is a piston, 50 is a connecting rod, 51 is an overhead camshaft, and 52 is a crankcase. A transmission case 54 extending rearward is integrally formed on the left side of the crankcase 52.
The transmission device 34 is housed within the case 54 . The rotation of the driven pulley 56 of the transmission device 34 is controlled by a centrifugal clutch 58. It is transmitted to the rear wheel shaft 62 via the reduction gear 6°.

この後輪軸62の右端は、クランクケース52の右側か
ら後方に延びるアーム64に1弾性材66および軸受6
8を介して保持されている。
The right end of this rear wheel shaft 62 is connected to an arm 64 extending rearward from the right side of the crankcase 52, and an elastic member 66 and a bearing 6.
It is held through 8.

第6図で70はカバーであって9発電機40の右側方か
らシリンダ44およびシリンダヘッド46P覆う。この
カバー70には9発電機40に固定されたファン72に
対向する空気取入ロア4が開口している。なおこのファ
ン72の中央部には。
In FIG. 6, a cover 70 covers the cylinder 44 and cylinder head 46P from the right side of the generator 40. The air intake lower 4 facing the fan 72 fixed to the generator 40 is opened in the cover 70 . Note that in the center of this fan 72.

円型の窓72aが形成されている。この窓72aには発
電機40の整備の際などにクランク軸38右端のナツト
76を着脱するための工具が貫挿され、ファン72を取
外ずすことなく発電機40のIB[11が行えるように
なっている。このファン72により空気取入ロア4から
カバー70内に取込まれた冷却風は、シリンダ44.シ
リンダヘッド46を冷却し、後記ダク)90に導かれて
排出される。
A circular window 72a is formed. A tool for attaching and detaching the nut 76 at the right end of the crankshaft 38 is inserted through this window 72a during maintenance of the generator 40, etc., so that IB [11 of the generator 40 can be performed without removing the fan 72. It looks like this. The cooling air taken into the cover 70 from the air intake lower 4 by the fan 72 is transferred to the cylinder 44. The cylinder head 46 is cooled and then led to a duct (described later) 90 and discharged.

このように構成された動カニニット30は、その前端が
ピボット軸78によって車体フレーム10に連結される
。すなわち前記左右一対のバックチューブ16a、16
bには、それぞれピボットブラケット80(80a、8
0b)が固着される一方(第5図)、前記クランクケー
ス52には左右一対の連結アーム82(82a、82b
)が一体成形され1両ピボットブラヶッ)80間に両連
結アーム82を挾むように両者はこれら2貫通するヒg
y ト軸78で連結される。この結果動カニニット30
は、このピざット軸78を中心に上下に揺動可能となる
。動力ユニッ)30の後部は、緩衝ユニット84により
弾力的にバックチューブ16に支持されている。なお第
3,6図で86は伝動ケース54に取付けられた吸気清
浄器、88は気化器である。
The front end of the dynamic crab knit 30 configured in this manner is connected to the vehicle body frame 10 by a pivot shaft 78. That is, the pair of left and right back tubes 16a, 16
pivot brackets 80 (80a, 80b), respectively.
0b) is fixed to the crankcase 52 (Fig. 5), while a pair of left and right connecting arms 82 (82a, 82b) are fixed to the crankcase 52.
) are integrally molded with one pivot bracket ( ) 80 and two connecting arms 82 are sandwiched therebetween.
They are connected by a y-to-axis 78. As a result, dynamic crab knit 30
is capable of vertically swinging around this pizat shaft 78. The rear part of the power unit 30 is elastically supported by the back tube 16 by a buffer unit 84. In FIGS. 3 and 6, 86 is an intake air cleaner attached to the transmission case 54, and 88 is a carburetor.

90はエンジン冷却風の排出用ダクトであり。90 is a duct for discharging engine cooling air.

エンジン32のカバー70の左側前面に接続され(第4
,5図)、ピボット軸78の前方であってかつ左右のピ
ボットブラケット80a、80bに挾まれる空間を通っ
て下方に延びている。また92は排気管であり、このダ
ク)90の右側からピボット軸78前方を通りクランク
ケース52の下方に延びている。この排気管92は後輪
36の右側に配設された排気消音器94に接続されてい
る(第3図)。
Connected to the left front side of the cover 70 of the engine 32 (fourth
, 5), it extends downward through a space in front of the pivot shaft 78 and sandwiched between the left and right pivot brackets 80a and 80b. Reference numeral 92 denotes an exhaust pipe, which extends from the right side of the duct 90 past the front of the pivot shaft 78 and below the crankcase 52. This exhaust pipe 92 is connected to an exhaust muffler 94 disposed on the right side of the rear wheel 36 (FIG. 3).

このようにダクト90はピボット軸78前方でかつビボ
ットブラケツ)80a、sobの間に配設され、エンジ
ン冷却風を下方に排出するので。
In this way, the duct 90 is disposed in front of the pivot shaft 78 and between the pivot brackets 80a and sob, and discharges engine cooling air downward.

エンジン32の側面にダクトを取付ける場合に比べて動
カニニット30の前部の横幅が挾くなる。
Compared to the case where the duct is attached to the side of the engine 32, the width of the front part of the moving crab knit 30 becomes narrower.

この動カニニット30はリヤカバー96で覆われ、この
リヤカバー96の前部側方には比較的大きい足置台98
(98a、98b)が確保され。
The moving crab knit 30 is covered with a rear cover 96, and a relatively large footrest 98 is provided on the front side of the rear cover 96.
(98a, 98b) are secured.

リヤカバー96の前方の足置台100と共に非常に大き
な足置空間が形成される(第1.2図)。なお102は
リヤカバー96上に配設された運転シートである。
Together with the footrest 100 in front of the rear cover 96, a very large footrest space is formed (FIG. 1.2). Note that 102 is a driver's seat disposed on the rear cover 96.

本実施例におけるピボットブラケット80はバックチュ
ーブ16に固着されているが9本発明ではピボットブラ
ケットを車体フレームに揺動自在に取付け、この揺動端
へピボット軸により動カニニットを連結するようにした
ものも含む。また本発明のエンジンは直立型に限らず前
傾、後傾型であってもよく、2サイクルエンジンであっ
てもよい0 (発明の効果) 本発明は以上のように、動カニニットのエンジン冷却風
を排出するダクトを、ピボット軸前方でかつ左右一対の
ピボットブラケット間に位置するように配設したから、
動カニニット前部の横幅が狭くなる。このためスクータ
型車輌に適用した場合に、リヤカバー前部の幅が狭くな
り、リヤカバーの前部側方に大きい面積の足置台を確保
することが可能になる。
The pivot bracket 80 in this embodiment is fixed to the back tube 16, but in the present invention, the pivot bracket is swingably attached to the vehicle body frame, and a moving crab knit is connected to this swing end by a pivot shaft. Also included. Further, the engine of the present invention is not limited to an upright type, but may be a forward-tilting or backward-tilting type, or may be a two-stroke engine. The duct for discharging the wind was placed in front of the pivot shaft and between the pair of left and right pivot brackets.
The width of the front part of the moving crab knit becomes narrower. Therefore, when applied to a scooter type vehicle, the width of the front part of the rear cover becomes narrower, making it possible to secure a large area of footrest on the sides of the front part of the rear cover.

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

第1,2図は本発明の一実施例の平面図と側面図。 第3図は動カニニット取付状態を示す側面図、第4、5
.6図は動カニニットの正面図と平面図と、一部所面し
た展開平面図である。 10・・・車体フレーム、30・・・動カニニット。 32・・エンジン、34・・伝動装置。 36・・・後輪、 78・・ピボット軸。 80・・・ピボットブラケット、90・・・ダクト。 −し続補正書(自発) 昭和59年3月28日 特許庁長官 若杉和夫殿 ■、事件の表示 昭和59年特許願第34447号 2 発明の名称 ユニットスイング式車輛 3、補正をする者 事件との関係 特許 出願 人 住所 静岡県磐田市新貝2500番地 名 称 (AO7) ヤマハ発動機株式会社代表者 江
 口 秀 人 4、代理人 住 所 東京都港区西新橋1丁目6番21号6、補正に
より増加する発明の数 0 7、補正の対象 明細書および図面 8、補正の内容 明細書および図面を浄書する。
1 and 2 are a plan view and a side view of an embodiment of the present invention. Figure 3 is a side view showing the installed state of the moving crab knit, Figures 4 and 5.
.. Figure 6 is a front view, a plan view, and a partially developed plan view of the moving crab knit. 10...Car body frame, 30...Dynamic crab knit. 32...Engine, 34...Transmission device. 36... Rear wheel, 78... Pivot shaft. 80... Pivot bracket, 90... Duct. - Continuing amendment (voluntary) March 28, 1980 Mr. Kazuo Wakasugi, Commissioner of the Japan Patent Office ■, Indication of the case 1982 Patent Application No. 34447 2 Name of the invention Unit swing type vehicle 3, Person making the amendment Case and Relationship with Patent Application Address: 2500 Shingai, Iwata City, Shizuoka Prefecture Name (AO7) Yamaha Motor Co., Ltd. Representative: Hideto Eguchi 4, Agent Address: 1-6-21-6 Nishi-Shinbashi, Minato-ku, Tokyo, amended The number of inventions increases due to 0 7, the specification and drawings to be amended 8, and the specification and drawings to be amended are reprinted.

Claims (1)

【特許請求の範囲】 強制空冷式エンジンと伝動装置と後輪上を一体化して動
カニニットとし、この動カニニットの前部を車体フレー
ムに設けた左右一対のピボットブラケットにピボット軸
によって上下揺動自在に連結したユニットスイング式車
輌において。 前記エンジンの冷却風を排出するダクト?、前記ピボッ
ト軸の前方かつ前記左右一対のピボットブラケット間に
配設したことを特徴とするユニットスイング式車輌。
[Scope of Claims] A forced air-cooled engine, a transmission, and a rear wheel are integrated to form a dynamic crab unit, and the front part of this dynamic crab unit is attached to a pair of left and right pivot brackets provided on the vehicle body frame, and is capable of vertically swinging by a pivot shaft. In a unit swing type vehicle connected to. The duct that discharges cooling air from the engine? A unit swing type vehicle, wherein the unit swing type vehicle is disposed in front of the pivot shaft and between the pair of left and right pivot brackets.
JP59034447A 1984-02-27 1984-02-27 Unit swing type car Granted JPS60179325A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59034447A JPS60179325A (en) 1984-02-27 1984-02-27 Unit swing type car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59034447A JPS60179325A (en) 1984-02-27 1984-02-27 Unit swing type car

Publications (2)

Publication Number Publication Date
JPS60179325A true JPS60179325A (en) 1985-09-13
JPH0571437B2 JPH0571437B2 (en) 1993-10-07

Family

ID=12414500

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59034447A Granted JPS60179325A (en) 1984-02-27 1984-02-27 Unit swing type car

Country Status (1)

Country Link
JP (1) JPS60179325A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62168780A (en) * 1986-01-21 1987-07-25 スズキ株式会社 Saddling type car for travelling on uneven ground

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62168780A (en) * 1986-01-21 1987-07-25 スズキ株式会社 Saddling type car for travelling on uneven ground

Also Published As

Publication number Publication date
JPH0571437B2 (en) 1993-10-07

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