JPH08142960A - Intake system of motorcycle - Google Patents
Intake system of motorcycleInfo
- Publication number
- JPH08142960A JPH08142960A JP6305705A JP30570594A JPH08142960A JP H08142960 A JPH08142960 A JP H08142960A JP 6305705 A JP6305705 A JP 6305705A JP 30570594 A JP30570594 A JP 30570594A JP H08142960 A JPH08142960 A JP H08142960A
- Authority
- JP
- Japan
- Prior art keywords
- air cleaner
- width
- fork
- rear fork
- power unit
- 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
- 238000009434 installation Methods 0.000 claims description 4
- 239000006200 vaporizer Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- 239000002828 fuel tank Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Automatic Cycles, And Cycles In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、自動２輪車の吸気装
置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intake device for a motorcycle.
【０００２】[0002]
【従来の技術】特公平５ー３０６７５号には、前端部で
前輪を支持し後端部でシートを支持する前部フレーム
と、その前部フレームへ前端部が固着されるとともに左
右一対で後方へ延びるリヤフォークと、このリヤフォー
クの下方へ支持されたパワーユニットと、パワーユニッ
トの側方へ重ねて配置されたエアークリーナを備えた自
動２輪車が示されている。2. Description of the Related Art Japanese Patent Publication No. 5-30675 discloses a front frame which supports a front wheel at a front end and a seat at a rear end, and a front frame fixed to the front frame and a pair of left and right rear parts. There is shown a motorcycle including a rear fork extending to, a power unit supported below the rear fork, and an air cleaner arranged so as to be overlapped laterally of the power unit.
【０００３】[0003]
【発明が解決しようとする課題】しかし、前記構造の場
合、上下方向寸法を変えずにエアクリーナの容量を増や
そうとすれば、車体幅方向外方へ拡幅せざるを得ず、そ
の結果、車体幅を大きくしてしまうことになる。したが
って、車体幅を大きくせずにエアクリーナの大容量化を
実現できることが望まれる。However, in the case of the above structure, if the capacity of the air cleaner is to be increased without changing the vertical dimension, the air cleaner must be widened outward in the width direction of the vehicle body. Will be increased. Therefore, it is desired that the capacity of the air cleaner can be increased without increasing the vehicle body width.
【０００４】[0004]
【課題を解決するための手段】上記課題を解決するた
め、本願発明に係る自動２輪車の吸気装置は、前端部で
前輪を支持するとともに前後方向へ延びる前部フレーム
と、この前部フレームへ前端部が固着されるとともに左
右一対で略水平に後方へ延び後端部で後輪を支持するリ
ヤフォークと、このリヤフォークの下方へ支持されたパ
ワーユニットとを備えた自動２輪車において、後輪の最
前部をパワーユニットの後端部よりも後方へ位置させ、
リヤフォークの上方近傍に左右方向幅を左右のリヤフォ
ーク離間幅と略同程度にしたエアクリーナを配置したこ
とを特徴とする。In order to solve the above problems, an intake system for a motorcycle according to the present invention includes a front frame which supports the front wheel at its front end and extends in the front-rear direction, and this front frame. A motorcycle having a rear fork whose front end is fixedly attached and which extends rearward substantially horizontally in a pair of left and right and supports a rear wheel at a rear end, and a power unit which is supported below the rear fork, Position the front part of the rear wheel behind the rear end of the power unit,
An air cleaner whose width in the left-right direction is approximately the same as the left-right rear fork separation width is arranged near the upper portion of the rear fork.
【０００５】[0005]
【作用】リヤフォークの前端部を前部フレームに固着し
て左右一対で略水平に後方へ延ばすとともに、このリヤ
フォークの下方へ支持されたパワーユニットの後端部よ
りも後方へ後輪の最前部を位置させると、リヤフォーク
の上方近傍に前後方向が拡大された比較的大きな物品配
設空間を確保できる。そこで、この物品配設空間内へ左
右方向幅を左右のリヤフォーク離間幅と略同程度にした
エアクリーナを配置すると、車体幅を必要以上に拡大せ
ずにエアクリーナを大容量化できる。[Function] The front end of the rear fork is fixed to the front frame so that the pair of left and right extends substantially horizontally rearward, and the frontmost part of the rear wheel is rearward of the rear end of the power unit supported below the rear fork. Is located, it is possible to secure a relatively large article-arrangement space in which the front-rear direction is enlarged near the upper portion of the rear fork. Therefore, if an air cleaner whose width in the left-right direction is approximately the same as the left and right rear fork separation widths is arranged in this article disposition space, the capacity of the air cleaner can be increased without unnecessarily increasing the vehicle body width.
【０００６】[0006]
【実施例】図面に基づいて一実施例を説明する。図２は
実施例に係る自動２輪車全体の左側面図を示す。この図
において、前輪２はフロントフォーク４を介して略Ｕ字
状をなす前部フレーム６の前方へ支持される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described with reference to the drawings. FIG. 2 is a left side view of the entire motorcycle according to the embodiment. In this figure, a front wheel 2 is supported in front of a substantially U-shaped front frame 6 via a front fork 4.
【０００７】前部フレーム６は前端部のヘッドパイプ８
から斜め下がりに後方へ延びる前部１０、前部フレーム
６の中間部で屈曲して下方へ突出し最低地上高部をなす
鞍部１２、斜め上がりに後方へ延びる後部１４、がそれ
ぞれ連続した形状をなす。前部１０には長さ方向にフレ
ームカバー１６が取付けられ、主として前部１０の側面
下側を覆っている。The front frame 6 is a head pipe 8 at the front end.
The front portion 10 extending obliquely downward from the rear portion, the saddle portion 12 that bends in the middle portion of the front frame 6 and projects downward and forms the lowest ground clearance, and the rear portion 14 extending obliquely upward to the rear form a continuous shape. . A frame cover 16 is attached to the front portion 10 in the longitudinal direction, and mainly covers the lower side surface of the front portion 10.
【０００８】鞍部１２にはフレームカバー１６の後端部
と前端部が接続するロアーカバー１８が取付けられる。
その内側にバッテリ２０、リレー２２、ＣＤＩユニット
２４が収納されてロアーカバー１８に覆われ、これらの
収納部品は鞍部１２上に支持されている。A lower cover 18 is attached to the saddle portion 12 to connect the rear end and the front end of the frame cover 16.
The battery 20, the relay 22, and the CDI unit 24 are housed inside and covered with the lower cover 18, and these housing parts are supported on the saddle portion 12.
【０００９】後部１４の上端部には上下に伸縮可能なシ
ートポスト２６を介してサドル状のシート２８が支持さ
れている。また、後部１４とリヤフェンダ３０との間に
は比較的大きな物品配設空間Ｓ１が形成されている。A saddle-shaped seat 28 is supported on the upper end of the rear portion 14 via a seat post 26 which is vertically expandable and contractible. A relatively large article disposing space S1 is formed between the rear portion 14 and the rear fender 30.
【００１０】この物品配設空間Ｓ１の上部には燃料タン
ク３２が後部１４と、左右一対のリヤステイ６０（後
述）間に橋渡ししたクロスプレート（図示せず）へと支
持されて収納され、その下方にオイルタンク３４、エア
クリーナ３６が上下方向へ並んで収納されている。A fuel tank 32 is supported and accommodated in the upper portion of the article disposing space S1 by a rear portion 14 and a cross plate (not shown) bridging between a pair of left and right rear stays 60 (described later), and below it. An oil tank 34 and an air cleaner 36 are housed side by side in the vertical direction.
【００１１】フレームカバー１６と側面視で重なる位置
に気化器３８が配設され、これら燃料タンク３２、オイ
ルタンク３４、エアクリーナ３６及び気化器３８を覆う
ように後部１４とリヤフェンダ３０の間にサイドカバー
４０が取付けられている。サイドカバー４０はロアーカ
バー１８と一体又は別体のいずれであってもよい。A carburetor 38 is disposed at a position overlapping the frame cover 16 in a side view, and a side cover is provided between the rear portion 14 and the rear fender 30 so as to cover the fuel tank 32, the oil tank 34, the air cleaner 36 and the carburetor 38. 40 is attached. The side cover 40 may be integral with or separate from the lower cover 18.
【００１２】鞍部１２の下方にはハンガー４２及びこれ
に防振ブッシュ４２ａを用いて回動自在に取付けられて
いる防振リンク４３（図１参照）を介してパワーユニッ
ト４４が略水平に寝かされて前後方向へ長い縦置き状態
で支持されている。４３ａはストッパークッションであ
る。パワーユニット４４の下方には排気管４６が前方か
ら後方へ延びている。Below the saddle part 12, a power unit 44 is laid down substantially horizontally via a hanger 42 and a vibration-proof link 43 (see FIG. 1) rotatably attached to the hanger 42 by using a vibration-proof bush 42a. It is supported in a long vertical position in the front-back direction. 43a is a stopper cushion. Below the power unit 44, an exhaust pipe 46 extends from the front to the rear.
【００１３】パワーユニット４４の後部に設けられたミ
ッションケース４８内のドライブスプロケット５０に巻
き掛けられたチェーン５２は斜め上がりに後方へ延びて
ドリブンスプロケット５４へ巻き掛けられている。ミッ
ションケース４８内にはベルト式変速機が設けられ、ベ
ルコンカバー４７で覆われている。A chain 52 wound around a drive sprocket 50 in a mission case 48 provided at the rear of the power unit 44 extends obliquely upward to the rear and is wound around a driven sprocket 54. A belt type transmission is provided in the mission case 48 and is covered with a bellcon cover 47.
【００１４】後輪５６は鞍部１２から略水平に後方へ延
びるリヤフォーク５８と、後部１４とリヤフォーク５８
の後端部とを斜めに連結するリヤステイ６０とで構成さ
れるリヤフレーム６２に支持される。後輪５６の最前部
はミッションケース４８の後端部よりも後方位置に下げ
られている。The rear wheel 56 includes a rear fork 58 extending rearward from the saddle portion 12 substantially horizontally, a rear portion 14 and a rear fork 58.
It is supported by a rear frame 62 including a rear stay 60 that obliquely connects the rear end portion. The frontmost portion of the rear wheel 56 is lowered to a position rearward of the rear end portion of the mission case 48.
【００１５】図１はパワーユニット４４の支持構造を示
す拡大側面図、図３はその反対側（右側）をフレーム全
体構成とともに示す図である。また、図４はエアクリー
ナ３６と気化器３８の関係を上方（図１のＸ矢示方向）
から示す図である。FIG. 1 is an enlarged side view showing the support structure of the power unit 44, and FIG. 3 is a view showing the opposite side (right side) together with the entire frame structure. Further, FIG. 4 shows the relationship between the air cleaner 36 and the carburetor 38 upward (in the direction of the arrow X in FIG. 1).
It is a figure shown from.
【００１６】これらの図において明らかなように、リヤ
フォーク５８は従来の自動２輪車に比べて遥かに長くな
っており、左右のリヤフォーク５８の上方かつ後部１４
とリヤフェンダ３０の間に、前後並びに左右へ十分な寸
法を確保した比較的大きな物品配設空間Ｓ１が形成され
ている。As is apparent from these figures, the rear fork 58 is much longer than the conventional motorcycle, and is located above the left and right rear forks 58 and at the rear portion 14.
Between the rear fender 30 and the rear fender 30, a relatively large article arranging space S1 having a sufficient size in the front-rear direction and the left-right direction is formed.
【００１７】リヤフォーク５８の中間部に下方へ突出し
て設けられたステー５９には、ミッションケース４８の
後部に設けられたマウント４９がハンガボルト６４で連
結され、パワーユニット４４がリヤフォーク５８の下方
に吊り下げ支持されている。A mount 49 provided at a rear portion of the transmission case 48 is connected to a stay 59 provided at a middle portion of the rear fork 58 so as to project downward, and a power unit 44 is hung below the rear fork 58. Lowered and supported.
【００１８】このため、リヤフォーク５８の下方へ位置
するドライブスプロケット５０へ巻き掛けられたチェー
ン５２のテンション側（上側）が、側面視でリヤフォー
ク５８と交差し、かつハンガボルト６４と重なっている
（図３）。マウント４９、ステー５９及びハンガボルト
６４で後部側のエンジンハンガピボット部を構成してい
る。Therefore, the tension side (upper side) of the chain 52 wound around the drive sprocket 50 located below the rear fork 58 intersects with the rear fork 58 in a side view and overlaps with the hanger bolt 64 ( (Figure 3). The mount 49, the stay 59, and the hanger bolt 64 form a rear engine hanger pivot portion.
【００１９】このようにチェーン５２のテンション側を
エンジンハンガピボット部に重ねると、チェーン５２の
テンションが防振リンク４３の動きに影響を与えずにチ
ェーン５２のテンションをエンジンハンガピボット部で
吸収するのに適した構造になる。When the tension side of the chain 52 is overlapped with the engine hanger pivot portion in this manner, the tension of the chain 52 is absorbed by the engine hanger pivot portion without affecting the movement of the vibration-proof link 43. The structure is suitable for.
【００２０】図１に明らかなように、リヤフォーク５８
は側面視で気化器３８の外側方に重なっており、かつ調
整ネジであるストップスクリュー６６とドレインボルト
６７を上下に分離してリヤフォーク５８がこれらの間を
前後方向へ通されている。As is apparent from FIG. 1, the rear fork 58
Is overlapped on the outside of the carburetor 38 in a side view, and the stop screw 66, which is an adjusting screw, and the drain bolt 67 are vertically separated, and a rear fork 58 is passed between them in the front-rear direction.
【００２１】このため、調節ネジ（６６、６７）がリヤ
フォーク５８と重ならず、側方からのメンテナンスが容
易になっている。この気化器３８の下流側は、インテー
クパイプ６８でパワーユニット４４を構成する２サイク
ルエンジンのクランク室６９へ接続し、クランク室６９
内で吸気を予備圧縮するようになっている。Therefore, the adjusting screws (66, 67) do not overlap the rear fork 58, which facilitates maintenance from the side. The downstream side of the carburetor 38 is connected to the crank chamber 69 of the two-cycle engine that constitutes the power unit 44 by the intake pipe 68, and the crank chamber 69
The intake air is pre-compressed inside.
【００２２】シリンダ７０を囲むシリンダシュラウド７
２の側方から斜め上がり後方へホットエアダクト７４が
設けられ、その出口７５を気化器３８へ指向させること
により、気化器３８の過冷却を防止している。符号３９
はインシュレータ、６８ａはインテークパイプの気化器
側接続部分である。A cylinder shroud 7 surrounding the cylinder 70.
A hot air duct 74 is provided obliquely upward and rearward from the side of 2, and its outlet 75 is directed to the carburetor 38, thereby preventing supercooling of the carburetor 38. Symbol 39
Is an insulator and 68a is a carburetor side connection portion of the intake pipe.
【００２３】このホットエアダクト７４はシリンダシュ
ラウド７２及びリコイルスタータカバー７８と一体にな
ってＬカバーを構成している。ホットエアダクト７４は
着脱自在のダクトカバー７６部分で覆われ、ネジ７９で
着脱可能である。このようにすると、各カバーを一体に
できるため部品点数を削減し、組立作業を容易にでき
る。The hot air duct 74 is integrated with the cylinder shroud 72 and the recoil starter cover 78 to form an L cover. The hot air duct 74 is covered with a detachable duct cover 76 and can be attached and detached with a screw 79. By doing so, the respective covers can be integrated so that the number of parts can be reduced and the assembling work can be facilitated.
【００２４】図４に明らかなように、エアクリーナ３６
のクリーンサイド３７ｂには前部を幅狭部３５ａとし、
後部３５ｂよりも左右幅を狭くしてある。この幅狭部３
５ａ側方かつ後部３５ｂの前方に気化器配設空間Ｓ２が
形成されている。この気化器配設空間Ｓ２に気化器３８
が配設され、気化器３８の上流側がクリーンサイド３７
ｂの後部３５ｂの前面へ接続されている。As is apparent from FIG. 4, the air cleaner 36
The clean side 37b of the front is the narrow portion 35a,
The left-right width is narrower than the rear portion 35b. This narrow part 3
A carburetor installation space S2 is formed on the side of 5a and in front of the rear portion 35b. The vaporizer 38 is placed in the vaporizer installation space S2.
Is installed, and the upstream side of the carburetor 38 is the clean side 37.
It is connected to the front surface of the rear portion 35b of b.
【００２５】エアクリーナ３６の最大左右幅はクリーン
サイド３７ｂの後部３５ｂを含む部分であり、２股状に
分れて平行する一対のリヤフォーク５８の離間幅と略同
程度であって、下部を左右のリヤフォーク５８間に入れ
られ、ステー３６ｄ、３６ｅ（図１参照）でパワーユニ
ット４４側へ取付けられて支持されている。気化器３８
も左右のリヤフォーク５８間に位置している。The maximum left-right width of the air cleaner 36 is a portion including the rear portion 35b of the clean side 37b, which is approximately the same as the separation width of a pair of rear forks 58 which are divided into two forks and are parallel to each other. It is inserted between the rear forks 58, and is attached and supported to the power unit 44 side by stays 36d and 36e (see FIG. 1). Vaporizer 38
Is also located between the left and right rear forks 58.
【００２６】なお、図中の符号３６ａはダーテイサイド
３７ａの前面へ斜め下向きに形成されたインレットであ
り、ここからエアークリーナ３６内へ導入された空気は
エアーフィルタ３６ｂで浄化され、図示しないアウトレ
ットに接続したチューブ３６ｃから気化器３８へ供給さ
れる。Reference numeral 36a in the drawing is an inlet formed obliquely downward to the front of the dirty side 37a. Air introduced into the air cleaner 36 from here is purified by an air filter 36b and connected to an outlet not shown. It is supplied to the vaporizer 38 from the tube 36c.
【００２７】図５乃至図８はフレームカバー１６を説明
するための図であり、図５は拡大側面図、図６は図５の
Ｚ矢視図、図７は図５の７−７線断面図、図８は図５の
８−８線断面図である。5 to 8 are views for explaining the frame cover 16, FIG. 5 is an enlarged side view, FIG. 6 is a view in the direction of arrow Z of FIG. 5, and FIG. 7 is a cross section taken along line 7-7 of FIG. 8 and 9 are sectional views taken along line 8-8 of FIG.
【００２８】これらの図において、フレームカバー１６
は両端部に略下向に開口する前端部８０と後端部８２を
有し、これらの中間部８４は略上向に開口し、かつ中間
部８４のみに設けられる底部８６には長さ方向へ延びる
スリット８８が形成されている。In these figures, the frame cover 16
Has a front end portion 80 and a rear end portion 82 that open substantially downward at both ends, an intermediate portion 84 between these is opened substantially upward, and a bottom portion 86 provided only in the intermediate portion 84 has a longitudinal direction. A slit 88 extending to is formed.
【００２９】フレームカバー１６は全体が適宜なプラス
チックで略均一な肉厚に一体形成され、前端部８０、後
端部８２の各取付部８１、８３に設けられたボルト透し
穴８１ａ、８３ａで前部１０へボルト８５によって取付
けられている（図７参照、後端部８２側も同様構造）。The frame cover 16 is integrally formed of an appropriate plastic as a whole with a substantially uniform thickness, and has bolt through holes 81a and 83a provided in the mounting portions 81 and 83 of the front end portion 80 and the rear end portion 82, respectively. It is attached to the front portion 10 by a bolt 85 (see FIG. 7, the rear end portion 82 side has the same structure).
【００３０】なお、図７及び図８に明らかなように、前
端部８０、後端部８２の下方は開放されて底部が無く、
逆に頂部８０ａ及び８２ａが設けられている。As is apparent from FIGS. 7 and 8, the lower portions of the front end portion 80 and the rear end portion 82 are open and there is no bottom portion,
Conversely, tops 80a and 82a are provided.
【００３１】図８に示すように、フレームカバー１６内
にはハーネス９０を特別な支持具無しで収容しておくこ
とができる。このハーネス９０は、図２に示したバッテ
リ２０とヘッドライト９２、計器類９４及びホーン９６
などの電装品を接続するものである。したがって、フレ
ームカバー１６は前部１０のカバーになるとともに、ハ
ーネスカバーとしても機能する。As shown in FIG. 8, the harness 90 can be housed in the frame cover 16 without any special support. The harness 90 includes the battery 20, the headlight 92, the instruments 94 and the horn 96 shown in FIG.
It connects electrical components such as. Therefore, the frame cover 16 serves as a cover for the front portion 10 and also functions as a harness cover.
【００３２】フレームカバー１６をこのように構成する
と、フレームカバー１６を前部１０へ図５のＺ矢示方向
から被せることにより、図８に示すように、前部１０が
中間部８４を弾性変形させつつスリット８８を広げて内
部へ入り、その後中間部８４及び底部８６が原形へ復帰
するので容易に取付けできる。When the frame cover 16 is constructed in this way, by covering the front part 10 with the frame cover 16 in the direction of the arrow Z in FIG. 5, the front part 10 elastically deforms the intermediate part 84 as shown in FIG. While opening the slit 88 and entering the inside, the intermediate portion 84 and the bottom portion 86 return to their original shapes, so that they can be easily attached.
【００３３】従来のこの種のカバーは、予め薄肉部を設
けた平面状に成形しておき、この薄肉部で折り曲げて立
体形状にしていたが、このようにすると折り曲げ時に薄
肉部が白化し易く、このため繰り返し使用が難しくかつ
外観を損なうおそれがあった。しかし、本実施例によれ
ばこのようなおそれが無くなり、耐久性並びに外観性が
向上する。A conventional cover of this type is formed in advance into a flat surface having a thin portion, and is bent at this thin portion to form a three-dimensional shape. However, this makes it easy for the thin portion to become white during bending. Therefore, repeated use is difficult and there is a risk of impairing the appearance. However, according to the present embodiment, such fear is eliminated, and durability and appearance are improved.
【００３４】そのうえ、閉塞部である頂部８０ａ、８２
ａと底部８６を上下互い違いに設け、かつ型抜き方向
（図５のＹ矢示方向）でこれらが重ならないようにする
とともに、これらの各閉塞部と反対側にそれぞれ開放部
を設けたから、Ｙ矢示方向で型合わせする分割型を用い
れば、このフレームカバー１６を簡単に成形できる。In addition, the closed tops 80a, 82
Since a and the bottom portion 86 are provided alternately up and down, and they are not overlapped with each other in the die cutting direction (the direction of the arrow Y in FIG. 5), and the opening portions are provided on the opposite sides of the respective closing portions. The frame cover 16 can be easily molded by using a split mold that is matched in the direction of the arrow.
【００３５】次に、本実施例の作用を説明する。図２に
明らかなように、前部フレーム６が側面視略Ｕ字状をな
し、鞍部１２にリヤフォーク５８の前端部を固着し、か
つリヤフォーク５８の後端部へミッションケース４８の
後端部よりも後方に最前部が位置するように後輪５６を
支持したので、リヤフォーク５８の上方かつ後部１４と
リヤフェンダ３０との間に前後方向へ拡大された比較的
大きな物品配設空間Ｓ１を形成できる。そのうえ、パワ
ーユニット４４をリヤフォーク５８へより近接させて配
設できるから、車体の最低地上高をより高くできる。Next, the operation of this embodiment will be described. As is apparent from FIG. 2, the front frame 6 has a substantially U shape in a side view, the front end of the rear fork 58 is fixed to the saddle 12, and the rear end of the rear fork 58 is attached to the rear end of the mission case 48. Since the rear wheel 56 is supported so that the foremost portion is located rearward of the rear portion, a relatively large article disposing space S1 that is enlarged in the front-rear direction is provided above the rear fork 58 and between the rear portion 14 and the rear fender 30. Can be formed. Moreover, since the power unit 44 can be disposed closer to the rear fork 58, the minimum ground clearance of the vehicle body can be further increased.
【００３６】このとき、リヤフォーク５８を鞍部１２へ
固着することにより、リヤフォーク５８を十分に長くで
きるため、前記のように後輪５６をパワーユニット４４
に対して後方へ下げた配置にすることが容易になるとと
もに、比較的大きな物品配設空間Ｓ１の確保がさらに容
易になる。At this time, since the rear fork 58 can be made sufficiently long by fixing the rear fork 58 to the saddle portion 12, the rear wheel 56 is connected to the power unit 44 as described above.
With respect to the above, it is easy to make the arrangement lowered to the rear, and it becomes easier to secure a relatively large article arranging space S1.
【００３７】そこでこの物品配設空間Ｓ１内に、クリー
ンサイド３７を含む部分の最大左右幅を一対のリヤフォ
ーク５８の離間幅と略同程度にしたエアクリーナ３６を
収容すれば、車体幅を必要以上に拡大することなく大容
量のエアクリーナ３６を設けることができる。この場
合、エアクリーナ３６全体及びクリーンサイド３７ｂの
いずれも大容量化できる。また、前後方向に余裕が生じ
るのでエアフィルタ３６ｂの面積を小さくせずに必要な
大きさを確保し易くなる。なお、この物品配設空間Ｓ１
にはエアクリーナ３６のみならず、燃料タンク３２やオ
イルタンク３４も上下方向へ並べて収容可能になる。Therefore, if the air cleaner 36 in which the maximum lateral width of the portion including the clean side 37 is approximately the same as the separation width of the pair of rear forks 58 is housed in the article disposing space S1, the vehicle body width becomes larger than necessary. A large-capacity air cleaner 36 can be provided without expanding. In this case, the capacity of both the entire air cleaner 36 and the clean side 37b can be increased. Further, since there is a margin in the front-rear direction, it becomes easy to secure the required size without reducing the area of the air filter 36b. In addition, this article arrangement space S1
In addition to the air cleaner 36, the fuel tank 32 and the oil tank 34 can be housed side by side in the vertical direction.
【００３８】さらに、図４に明らかなように、エアクリ
ーナ３６の前部に幅狭部３５ａを設け、この幅狭部３５
ａとクリーンサイド３７で形成された気化器配設空間Ｓ
２に気化器３８を配設したので、気化器３８をエアクリ
ーナ３６の近傍かつリヤフォーク５８よりも内方（車体
中心側）へ収まるように配設でき、その結果、車体を大
型化させないようにできる。Further, as clearly shown in FIG. 4, a narrow portion 35a is provided in the front portion of the air cleaner 36, and the narrow portion 35a is provided.
a and a vaporizer installation space S formed by the clean side 37
Since the carburetor 38 is disposed in the second embodiment, the carburetor 38 can be disposed in the vicinity of the air cleaner 36 and inward of the rear fork 58 (center side of the vehicle body), and as a result, the vehicle body is not enlarged. it can.
【００３９】そのうえ、気化器３８の大部分とエアクリ
ーナ３６はリヤフォーク５８より上方に位置するため、
パワーユニット４４よりも上方の比較的高い位置に配設
されることになり、泥水など地上からの跳ね上げに対し
て有利な配設構造になる。Moreover, since most of the carburetor 38 and the air cleaner 36 are located above the rear fork 58,
Since it is arranged at a relatively high position above the power unit 44, the arrangement structure is advantageous for jumping up from the ground such as muddy water.
【００４０】なお、本願は前記実施例に限定されるもの
でなく、種々の応用が可能である。例えば、エアクリー
ナ３６をより上方へ配設させて、リヤフォーク５８でな
くリヤステイ６０に支持させることもできる。また前部
フレームの側面視形状はＶ字に近い鋭角的な屈曲形状で
あってもよい。The present application is not limited to the above embodiment, but various applications are possible. For example, the air cleaner 36 may be disposed further upward and supported by the rear stay 60 instead of the rear fork 58. Further, the side view shape of the front frame may be an acute bent shape close to a V shape.
【００４１】[0041]
【発明の効果】リヤフォークの前端部を前部フレームに
固着して左右一対で略水平に後方へ延ばすとともに、こ
のリヤフォークの下方へ支持されたパワーユニットの後
端部よりも後方へ後輪の最前部を位置させたので、リヤ
フォークの上方近傍に前後方向が拡大された比較的大き
な物品配設空間を確保できる。The front end portion of the rear fork is fixed to the front frame so that the pair of left and right parts extends substantially horizontally rearward, and the rear wheel of the rear wheel is rearward of the rear end portion of the power unit supported below the rear fork. Since the foremost portion is located, it is possible to secure a relatively large space for arranging articles in the front-rear direction in the vicinity of the upper portion of the rear fork.
【００４２】その結果、この物品配設空間内へ左右方向
幅を左右のリヤフォーク離間幅と略同程度にしたエアク
リーナを配置することにより、車体幅を必要以上に拡大
せずにエアクリーナを大容量化できる。そのうえ、パワ
ーユニットをリヤフォークへより近接させて配設できる
から、車体の最低地上高をより高くできる。As a result, by arranging the air cleaner whose width in the left-right direction is approximately the same as the width of the left and right rear forks in the article disposing space, the air cleaner has a large capacity without unnecessarily increasing the width of the vehicle body. Can be converted. Moreover, since the power unit can be disposed closer to the rear fork, the minimum ground clearance of the vehicle body can be increased.
【００４３】また、リヤフォークの前端部を前部フレー
ムの鞍部へ固着すると、リヤフォークを十分に長くでき
るため、後輪の最前端部をパワーユニットの後端部より
も後方へ下げた配置にすることが容易になるとともに、
大きな物品配設空間の確保がさらに容易になる。Further, by fixing the front end of the rear fork to the saddle part of the front frame, the rear fork can be made sufficiently long, so that the front end of the rear wheel is arranged rearward of the rear end of the power unit. As it becomes easier
It becomes easier to secure a large space for arranging articles.
【００４４】さらに、エアクリーナの側部にえぐり部を
設け、このえぐり部によって形成された気化器配設空間
に気化器を配設すると、気化器をエアクリーナの近傍か
つ左右のリヤフォーク間へ配設でき車体を大型化させな
いようにできる。そのうえ、気化器やエアークリーナが
パワーユニットよりも上方の比較的高い位置に配設され
るので、泥水など地上からの跳ね上げに対して有利な配
設構造になる。Further, when a scooping portion is provided on the side portion of the air cleaner and the carburetor is arranged in the carburetor mounting space formed by the scooping portion, the carburetor is arranged near the air cleaner and between the left and right rear forks. It is possible to prevent the vehicle body from becoming large. Moreover, since the carburetor and the air cleaner are arranged at a relatively high position above the power unit, the arrangement structure is advantageous for splashing muddy water from the ground.
【図面の簡単な説明】[Brief description of drawings]
【図１】 実施例要部の拡大左側面図FIG. 1 is an enlarged left side view of essential parts of an embodiment.
【図２】 実施例に係る自動２輪車の全体側面図FIG. 2 is an overall side view of the motorcycle according to the embodiment.
【図３】 実施例要部の右側面図FIG. 3 is a right side view of a main part of the embodiment.
【図４】 実施例要部を図１のＸ矢印から示す図FIG. 4 is a diagram showing a main part of an embodiment from an X arrow in FIG.
【図５】 実施例要部の側面図FIG. 5 is a side view of the essential part of the embodiment.
【図６】 実施例要部を図５のＺ矢印から示す図FIG. 6 is a diagram showing an essential part of the embodiment from the Z arrow in FIG.
【図７】 図５の７ー７線に沿う拡大断面図7 is an enlarged sectional view taken along line 7-7 of FIG.
【図８】 図５の８ー８線に沿う拡大断面図FIG. 8 is an enlarged sectional view taken along line 8-8 of FIG.
６：前部フレーム、１２：鞍部、１４：後部、３６：エ
アクリーナ、３８：気化器、４４：パワーユニット、５
８：リヤフォーク、５６：後輪6: front frame, 12: saddle part, 14: rear part, 36: air cleaner, 38: carburetor, 44: power unit, 5
8: Rear fork, 56: Rear wheel
Claims (3)
へ延びる前部フレームと、この前部フレームへ前端部が
固着されるとともに左右一対で略水平に後方へ延び後端
部で後輪を支持するリヤフォークと、このリヤフォーク
の下方へ支持されたパワーユニットとを備えた自動２輪
車において、後輪の最前部をパワーユニットの後端部よ
りも後方へ位置させ、リヤフォークの上方近傍に左右方
向幅を左右のリヤフォーク離間幅と略同程度にしたエア
クリーナを配置したことを特徴とする自動２輪車の吸気
装置。1. A front frame which supports a front wheel at a front end thereof and extends in the front-rear direction, and a front end which is fixed to the front frame and which extends substantially horizontally rearward in a pair of left and right, and a rear wheel at a rear end. In a motorcycle including a supporting rear fork and a power unit supported below the rear fork, a front portion of a rear wheel is located rearward of a rear end portion of the power unit and is provided near an upper portion of the rear fork. An intake device for a motorcycle, wherein an air cleaner having a width in the left-right direction which is substantially the same as a width for separating the left and right rear forks is arranged.
うに屈曲した鞍部とし、後部は上方へ延びてシートを支
持するとともに、前記鞍部にリヤフォークの前端部を固
着し、これら前部フレームの後部、リヤフォーク及び後
輪の間にエアクリーナの配設空間を形成したことを特徴
とする請求項１記載の自動２輪車の吸気装置。2. A front frame is a saddle portion bent so that an intermediate portion thereof protrudes downward, a rear portion extends upward to support a seat, and a front end portion of a rear fork is fixed to the saddle portion. The intake system for a motorcycle according to claim 1, wherein an air cleaner installation space is formed between the rear portion of the frame, the rear fork and the rear wheel.
たえぐり部を設け、このえぐり部によって形成された気
化器配設空間内に気化器を配設したことを特徴とする請
求項１又は２記載の自動２輪車の吸気装置。3. An air cleaner, which is provided with an engraved portion having a narrowed width in the left-right direction, and the carburetor is disposed in a carburetor disposition space formed by the engraved portion. 2. An intake device for a motorcycle according to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30570594A JP3344674B2 (en) | 1994-11-16 | 1994-11-16 | Motorcycle motorcycle intake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30570594A JP3344674B2 (en) | 1994-11-16 | 1994-11-16 | Motorcycle motorcycle intake system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08142960A true JPH08142960A (en) | 1996-06-04 |
| JP3344674B2 JP3344674B2 (en) | 2002-11-11 |
Family
ID=17948374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30570594A Expired - Fee Related JP3344674B2 (en) | 1994-11-16 | 1994-11-16 | Motorcycle motorcycle intake system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3344674B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2789020A1 (en) * | 1999-01-29 | 2000-08-04 | Honda Motor Co Ltd | Power assisted bicycle has V-shaped frame with dead space behind saddle tube used as filter |
| JP2008081050A (en) * | 2006-09-28 | 2008-04-10 | Honda Motor Co Ltd | Air cleaner arrangement structure of saddle riding type vehicle |
| WO2017168597A1 (en) * | 2016-03-29 | 2017-10-05 | 本田技研工業株式会社 | Handle engagement structure for motorcycle recoil starter |
| WO2017168598A1 (en) * | 2016-03-29 | 2017-10-05 | 本田技研工業株式会社 | Handle engagement structure for motorcycle recoil starter |
-
1994
- 1994-11-16 JP JP30570594A patent/JP3344674B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2789020A1 (en) * | 1999-01-29 | 2000-08-04 | Honda Motor Co Ltd | Power assisted bicycle has V-shaped frame with dead space behind saddle tube used as filter |
| JP2008081050A (en) * | 2006-09-28 | 2008-04-10 | Honda Motor Co Ltd | Air cleaner arrangement structure of saddle riding type vehicle |
| JP4728925B2 (en) * | 2006-09-28 | 2011-07-20 | 本田技研工業株式会社 | Air cleaner arrangement structure for saddle-ride type vehicles |
| WO2017168597A1 (en) * | 2016-03-29 | 2017-10-05 | 本田技研工業株式会社 | Handle engagement structure for motorcycle recoil starter |
| WO2017168598A1 (en) * | 2016-03-29 | 2017-10-05 | 本田技研工業株式会社 | Handle engagement structure for motorcycle recoil starter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3344674B2 (en) | 2002-11-11 |
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|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20020806 |
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| LAPS | Cancellation because of no payment of annual fees |