JPH11192989A - Intake duct device for motorcycle - Google Patents
Intake duct device for motorcycleInfo
- Publication number
- JPH11192989A JPH11192989A JP10001104A JP110498A JPH11192989A JP H11192989 A JPH11192989 A JP H11192989A JP 10001104 A JP10001104 A JP 10001104A JP 110498 A JP110498 A JP 110498A JP H11192989 A JPH11192989 A JP H11192989A
- Authority
- JP
- Japan
- Prior art keywords
- duct
- extension member
- cowling
- motorcycle
- intake duct
- 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
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 230000013011 mating Effects 0.000 abstract 1
- 210000003128 head Anatomy 0.000 description 7
- 229920003002 synthetic resin Polymers 0.000 description 5
- 239000000057 synthetic resin Substances 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 239000000470 constituent Substances 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J40/00—Arrangements of air cleaners specially adapted for cycles
- B62J40/10—Arrangements of air cleaners specially adapted for cycles characterised by air duct arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Cycles, And Cycles In General (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、自動二輪車の吸気
ダクト装置に係り、特に組立工数や部品点数の低減を図
った自動二輪車の吸気ダクト装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intake duct device for a motorcycle, and more particularly to an intake duct device for a motorcycle which reduces the number of assembly steps and the number of parts.
【０００２】[0002]
【従来の技術】自動二輪車において、車体の前頭部を流
線形のフロントカウリングで覆い、走行時における空気
抵抗の低減と外観の向上を図った車種がある。さらに、
このような車種において、エアクリーナーやエアボック
ス等の吸気装置からパイプ状の吸気ダクトを前方に延ば
し、この吸気ダクトの先端を上記フロントカウリングの
前面等に形成した走行風導入口に繋いだ吸気ダクト装置
を備えたものがある。このような吸気ダクト装置によれ
ば、自動二輪車の走行時に前方から吹きつける向かい風
が吸気ダクト内に取り入れられて吸気装置に送られ、こ
れによってエンジンへの吸入空気の充填効率が大幅に向
上するのでエンジン出力を増大させることができる。2. Description of the Related Art There is a motorcycle in which a front body of a motorcycle is covered with a streamlined front cowling to reduce air resistance during traveling and improve appearance. further,
In such a vehicle model, an intake duct having a pipe-like intake duct extending forward from an intake device such as an air cleaner or an air box, and a leading end of the intake duct being connected to a traveling wind inlet formed in the front of the front cowling or the like. Some are equipped with devices. According to such an intake duct device, the head wind blown from the front when the motorcycle is traveling is taken into the intake duct and sent to the intake device, thereby greatly improving the efficiency of charging the engine with intake air. The engine output can be increased.
【０００３】このような吸気ダクト装置では、その吸気
ダクトの先端をフロントカウリングの表面よりも前方に
突出させるのが望ましい。こうすることにより、走行中
に吸気ダクトに流れ込む気流に対し、フロントカウリン
グの表面を流れる気流が干渉しにくくなるため、吸気ダ
クトの先端を突出させない場合に比べ、空気を効率よく
吸気ダクト内に取り入れて吸入空気の充填効率を向上さ
せることができる。[0003] In such an intake duct device, it is desirable that the tip of the intake duct protrude forward from the surface of the front cowling. By doing so, the airflow flowing on the front cowling surface is less likely to interfere with the airflow flowing into the intake duct during traveling, so air is more efficiently taken into the intake duct than when the tip of the intake duct is not protruded. As a result, the charging efficiency of the intake air can be improved.
【０００４】ところで、吸気ダクトは一般に合成樹脂成
型により製造されるので、その長手方向に成型金型のパ
ーティングラインができる。また、特にブロー成型によ
る場合はパーティングラインの他に部分的な肉厚の偏り
が発生しやすい。そして、このような吸気ダクトを、前
述したようにその先端がフロントカウリングの表面より
も前方に突出させるようにして設けると、吸気ダクトの
前端開口部からパーティングラインや偏肉が見えてしま
い、美的外観が非常に悪くなる。Incidentally, since the intake duct is generally manufactured by molding a synthetic resin, a parting line of a molding die is formed in the longitudinal direction. In particular, in the case of blow molding, partial thickness deviation tends to occur in addition to the parting line. And if such an intake duct is provided so that its tip projects forward from the surface of the front cowling as described above, a parting line or uneven thickness will be visible from the front end opening of the intake duct, The aesthetic appearance becomes very poor.
【０００５】このため、一般には吸気ダクトとは別体の
短いダクト延長部材を外観良く製造し、このダクト延長
部材を吸気ダクトの先端に連結し、ダクト延長部材の部
分のみをカウリングの走行風導入口から前方に突出させ
るという手法で美的外観の劣化を回避していた。このダ
クト延長部材は、カウリングの走行風導入口に対してス
クリュー（ビス）等の締結部材で固定される。For this reason, generally, a short duct extension member separate from the intake duct is manufactured with good appearance, this duct extension member is connected to the tip of the intake duct, and only the duct extension member is introduced into the cowling by the traveling wind. The method of protruding forward from the mouth avoids deterioration of the aesthetic appearance. The duct extension member is fixed to the traveling wind introduction port of the cowling by a fastening member such as a screw (screw).
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、このよ
うにダクト延長部材を専用の締結部材でフロントカウリ
ングの走行風導入口に固定する構造では、専用の締結部
材による部品点数の増大と、締結部材の締め付け作業の
追加による組立工数の増大を余儀無くされ、コストアッ
プとなってしまう。However, in such a structure in which the duct extension member is fixed to the traveling wind introduction port of the front cowling by the exclusive fastening member, the number of components is increased by the exclusive fastening member, and the number of parts of the fastening member is increased. An increase in the number of assembling steps due to the addition of the tightening operation is inevitable, and the cost is increased.
【０００７】本発明に係る自動二輪車の吸気ダクト装置
は、このような問題点を解決するために発明されたもの
で、その第１の目的は、吸気ダクトの先端に美的外観向
上のためのダクト延長部材が設けられた自動二輪車の吸
気ダクト装置において、少ない部品点数と僅かな組立工
数により、ダクト延長部材をフロントカウリングの走行
風導入口に確実に固定可能にすることにある。A motorcycle intake duct apparatus according to the present invention has been invented in order to solve such problems, and a first object of the invention is to provide a duct for improving aesthetic appearance at the tip of the intake duct. In a motorcycle intake duct device provided with an extension member, a duct extension member can be securely fixed to a traveling wind inlet of a front cowling with a small number of parts and a small number of assembly steps.
【０００８】また、本発明に係る自動二輪車の吸気ダク
ト装置の第２の目的は、走行風導入口からのダクト延長
部材の突出量を変更可能にし、この突出量を自動二輪車
の走行条件に合わせて設定できるようにすることにあ
る。A second object of the intake duct device for a motorcycle according to the present invention is to make it possible to change a projection amount of a duct extension member from a traveling wind introduction port, and to adjust this projection amount to a traveling condition of the motorcycle. To be able to set.
【０００９】[0009]
【課題を解決するための手段】前記第１の目的を達成す
るため、本発明に係る自動二輪車の吸気ダクト装置は、
請求項１に記載したように、吸気装置に繋がる吸気ダク
トの先端に別体のダクト延長部材が連結され、上記ダク
ト延長部材が、車体の前頭部を覆うフロントカウリング
に形成された走行風導入口に挿入固定されて前方に向け
て開口し、自動二輪車の走行時に前方から吹きつける向
かい風がダクト延長部材と吸気ダクトとを経て上記吸気
装置に導かれるように構成された自動二輪車の吸気ダク
ト装置において、上記フロントカウリングを複数のカウ
リング構成部材から構成し、これらのカウリング構成部
材の合わせ目に上記走行風導入口を設け、各カウリング
構成部材の上記走行風導入口を形成する部分の内周面に
嵌合凸部を形成する一方、ダクト延長部材の外周面に嵌
合凹部を形成し、上記嵌合凸部と嵌合凹部とを嵌合させ
ることによってダクト延長部材を走行風導入口に固定し
たことを特徴とする。In order to achieve the first object, an intake duct device for a motorcycle according to the present invention comprises:
As described in claim 1, a separate duct extension member is connected to the tip of an intake duct connected to the intake device, and the duct extension member is configured to introduce a traveling wind formed on a front cowling that covers a front head of a vehicle body. An intake duct device for a motorcycle, which is inserted and fixed to the mouth and opens forward, and a head wind blown from the front when the motorcycle is running is guided to the intake device through a duct extension member and an intake duct. In the above, the front cowling is composed of a plurality of cowling constituent members, the running wind inlet is provided at a joint of these cowling constituent members, and an inner peripheral surface of a portion forming the running wind inlet of each cowling constituent member. On the other hand, a fitting concave portion is formed on the outer peripheral surface of the duct extension member while the fitting convex portion and the fitting concave portion are fitted to each other. And wherein the fixed bets extension member to running wind introducing port.
【００１０】また、同じく前記第２の目的を達成するた
め、本発明に係る自動二輪車の吸気ダクト装置は、請求
項２に記載したように、前記ダクト延長部材を前記吸気
ダクトおよび前記走行風導入口の位置に対して自動二輪
車の前後方向にスライド可能に設けるとともに、前記嵌
合凹部をダクト延長部材のスライド方向に沿って複数設
けた。According to another aspect of the present invention, there is provided an intake duct device for a motorcycle according to the present invention, wherein the duct extension member is connected to the intake duct and the traveling wind. The motorcycle is provided so as to be slidable in the longitudinal direction of the motorcycle with respect to the position of the mouth, and a plurality of the fitting recesses are provided along the sliding direction of the duct extension member.
【００１１】請求項１の構成によれば、複数のカウリン
グ構成部材の組立時に、カウリング構成部材側の嵌合凸
部をダクト延長部材側の嵌合凹部に嵌合させるだけで、
ダクト延長部材をフロントカウリングの走行風導入口に
固定できる。このため、スクリュー等の締結部材を用い
ずに、極めて少ない部品点数と僅かな組立工数でダクト
延長部材を走行風導入口に固定可能になる。According to the first aspect of the present invention, at the time of assembling the plurality of cowling components, the fitting projection on the cowling component is simply fitted into the fitting recess on the duct extension member.
The duct extension member can be fixed to the traveling wind introduction port of the front cowling. For this reason, the duct extension member can be fixed to the traveling wind introduction port without using a fastening member such as a screw and with a very small number of parts and a small number of assembly steps.
【００１２】また、請求項２の構成によれば、複数のカ
ウリング構成部材を組み合わせる際に、ダクト延長部材
のスライド方向に沿って複数設けられた嵌合凹部を任意
に選択してカウリング構成部材の嵌合凸部に嵌合させる
ことにより、走行風導入口からのダクト延長部材の突出
量を変化させることができる。このため、ダクト延長部
材の突出量を自動二輪車の走行条件に合わせて設定する
ことができる。According to the second aspect of the present invention, when combining a plurality of cowling components, a plurality of fitting recesses provided along the sliding direction of the duct extension member are arbitrarily selected. By fitting to the fitting convex part, the amount of protrusion of the duct extension member from the traveling wind introduction port can be changed. For this reason, the projecting amount of the duct extension member can be set in accordance with the running conditions of the motorcycle.
【００１３】[0013]
【発明の実施の形態】以下、本発明の一実施形態につい
て図面を参照しながら説明する。図１は、本発明に係る
吸気ダクト装置が適用された自動二輪車の左側面図であ
り、図２は図１に示す自動二輪車の正面図である。この
自動二輪車１は、オンロードにおける高速走行用として
車体の前頭部が流線形のフロントカウリング２で覆われ
ており、走行時における空気抵抗の低減と外観の向上が
図られている。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a left side view of a motorcycle to which the intake duct device according to the present invention is applied, and FIG. 2 is a front view of the motorcycle shown in FIG. In the motorcycle 1, the front head of the vehicle body is covered with a streamlined front cowling 2 for high-speed traveling on the road, so that the air resistance during traveling and the appearance are improved.
【００１４】自動二輪車１の車体フレーム３は、前頭部
に位置するヘッドパイプ４から左右一対の太いメインパ
イプ５が後斜め下方に延びてフレームボディー６に繋が
り、フレームボディー６の上部からリヤフレーム７が後
方に延びた構成となっている。そして、ヘッドパイプ４
にはフロントフォーク８が左右回動自在に軸支され、そ
の下端に前輪９が支持される一方、フレームボディー６
に車幅方向に架設されたピボット軸11には後方に延びる
スイングアーム12が上下揺動可能に軸支され、その後端
に後輪13が支持される。The body frame 3 of the motorcycle 1 has a pair of left and right thick main pipes 5 extending obliquely downward and rearward from a head pipe 4 located at the front of the head and connected to a frame body 6. 7 extends rearward. And head pipe 4
A front fork 8 is rotatably supported on the left and right, and a front wheel 9 is supported at the lower end thereof.
A swing arm 12 extending rearward is pivotally supported on a pivot shaft 11 erected in the vehicle width direction so as to be vertically swingable, and a rear wheel 13 is supported at a rear end thereof.
【００１５】また、車体フレーム３のメインパイプ５か
らフレームボディー６にかけて図示しないエンジンが懸
架され、このエンジンの動力がチェーン14によって後輪
13に伝達されるようになっている。さらに、メインパイ
プ５の上部には燃料タンク15が載置され、リヤフレーム
７上には運転者用のライダーシート16と同乗車用のピリ
オンシート17が前後に設置される。このライダーシート
16およびピリオンシート17の下部周囲とリヤフレームは
合成樹脂製のリヤカウリング18で覆われる。なお、符号
19で示す部材は排気マフラーであり、符号20で示す部材
はエンジン冷却用のラジエーターである。An engine (not shown) is suspended from the main pipe 5 of the body frame 3 to the frame body 6, and the power of the engine is transmitted by a chain 14 to the rear wheels.
13 to be transmitted. Further, a fuel tank 15 is mounted on the upper part of the main pipe 5, and a rider's seat 16 for a driver and a pillion seat 17 for the same passenger are installed on the front and rear on the rear frame 7. This rider seat
The periphery of 16 and the lower portion of the pillion sheet 17 and the rear frame are covered with a rear cowling 18 made of synthetic resin. The sign
A member indicated by 19 is an exhaust muffler, and a member indicated by reference numeral 20 is a radiator for cooling the engine.
【００１６】ところで、燃料タンク15の車幅方向中央部
には下方から上方に湾入する図示しない凹部が形成され
ており、この凹部の中に吸気装置としてのエアボックス
22（またはエアクリーナー）が設けられている。このエ
アボックス22の下面からは、エンジンの気筒数分の吸気
パイプ23が下方に延び、エンジンに設けられたキャブレ
ターあるいは燃料噴射装置等の混合気供給装置（非図
示）に繋がる。また、エアボックス22の前部には、本発
明に係る左右一対の吸気ダクト装置24が繋がる。A not-shown recess is formed in the center of the fuel tank 15 in the width direction of the vehicle so as to indent from below to above. An air box as an intake device is formed in the recess.
22 (or air cleaner) is provided. From the lower surface of the air box 22, intake pipes 23 for the number of cylinders of the engine extend downward and are connected to a mixture supply device (not shown) such as a carburetor or a fuel injection device provided in the engine. A pair of left and right intake duct devices 24 according to the present invention is connected to a front portion of the air box 22.
【００１７】図３は、吸気ダクト装置24の第１実施形態
を示す分解斜視図であり、図４は図１の IV-IV線に沿う
吸気ダクト装置24の横断面図である。図１および図３に
示すように、吸気ダクト装置24は合成樹脂で成型された
管状の吸気ダクト25を備えている。この吸気ダクト25の
後端にはゴム等の可撓性材料で柔軟に形成されたダクト
ジョイント26が接続され、このダクトジョイント26の後
端とエアボックス22とが、車体フレーム３のメインパイ
プ５に形成されたダクト穴（非図示）を挟むようにして
連結される。FIG. 3 is an exploded perspective view showing a first embodiment of the intake duct device 24, and FIG. 4 is a cross-sectional view of the intake duct device 24 taken along line IV-IV of FIG. As shown in FIGS. 1 and 3, the intake duct device 24 includes a tubular intake duct 25 molded of a synthetic resin. A duct joint 26 formed of a flexible material such as rubber is connected to the rear end of the intake duct 25. The rear end of the duct joint 26 and the air box 22 are connected to the main pipe 5 of the body frame 3. Are connected so as to sandwich a duct hole (not shown) formed at the bottom.
【００１８】一方、吸気ダクト25の先端には、図４およ
び図６にも示すような別体のダクト延長部材27が吸気ネ
ット28を介して連結される。例えば、吸気ネット28は吸
気ダクト25の先端部外周に形成された段差部31に密に嵌
合され、この吸気ネット28の先端部外周に形成された段
差部32にダクト延長部材27が密に嵌合される。なお、吸
気ネット28を省いて吸気ダクト25の段差部31にダクト延
長部材27を直接嵌合するようにしてもよい。On the other hand, a separate duct extension member 27 as shown in FIGS. 4 and 6 is connected to the distal end of the intake duct 25 via an intake net 28. For example, the intake net 28 is tightly fitted to a step 31 formed on the outer periphery of the distal end of the intake duct 25, and the duct extension member 27 is densely fitted on the step 32 formed on the outer periphery of the distal end of the intake net 28. Mated. Note that the duct extension member 27 may be directly fitted to the step 31 of the intake duct 25 without the intake net 28.
【００１９】そして、ダクト延長部材27が、フロントカ
ウリング２に形成された左右一対の走行風導入口33に挿
入され、フロントカウリング２の表面よりも前方に突出
するように固定されて前方に向けて開口する。このダク
ト延長部材27は合成樹脂成型品であるが、成型金型のパ
ーティングラインが自動二輪車１の外観に表れないよう
に外観良く製造する必要がある。A duct extension member 27 is inserted into a pair of left and right traveling wind introduction ports 33 formed in the front cowling 2 and is fixed so as to protrude forward from the surface of the front cowling 2 so as to face forward. Open. Although this duct extension member 27 is a synthetic resin molded product, it must be manufactured with good appearance so that the parting line of the molding die does not appear in the appearance of the motorcycle 1.
【００２０】例えば、ダクト延長部材27の前半部分27ｆ
（図６参照）は、走行風導入口33よりも前方に突出して
外部に露呈するが、後半部分27ｒは走行風導入口33より
も内側に隠蔽されて外部からは見えないため、この後半
部分27ｒにおいてパーティングラインが周方向に形成さ
れるようにダクト延長部材27の金型構造を考慮すればよ
い。For example, the first half 27f of the duct extension member 27
(See FIG. 6) projects forward from the traveling wind inlet 33 and is exposed to the outside, but the latter half 27r is concealed inside the traveling wind inlet 33 and cannot be seen from the outside. The mold structure of the duct extension member 27 may be considered so that the parting line is formed in the circumferential direction at 27r.
【００２１】このような吸気ダクト装置24を設けたこと
により、自動二輪車１の走行時に前方から吹きつける向
かい風がダクト延長部材27と吸気ネット28と吸気ダクト
25とダクトジョイント26を経てエアボックス22に導か
れ、その過給効果によりエンジンへの吸入空気の充填効
率が大幅に向上してエンジン出力が増大する。しかも、
ダクト延長部材27がフロントカウリング２の表面よりも
前方に突出しているため、走行中にダクト延長部材27の
中に流れ込む気流に対し、フロントカウリング２の表面
を流れる気流が干渉しにくくなり、空気を効率よく吸気
ダクト25内に取り入れることができる。By providing such an intake duct device 24, a head wind blown from the front when the motorcycle 1 travels can be applied to the duct extension member 27, the intake net 28 and the intake duct.
The air is fed into the air box 22 via the duct 25 and the duct joint 26. Due to the supercharging effect, the charging efficiency of the intake air into the engine is greatly improved, and the engine output is increased. Moreover,
Since the duct extension member 27 protrudes forward from the surface of the front cowling 2, the airflow flowing through the surface of the front cowling 2 is less likely to interfere with the airflow flowing into the duct extension member 27 during traveling, and It can be efficiently taken into the intake duct 25.
【００２２】また、外観良く製造されたダクト延長部材
27の部分のみが走行風導入口33から前方に突出する構造
であるため、ダクト延長部材27を設けずに吸気ダクト25
自体の先端を走行風導入口33から突出させた場合に比
べ、吸気ダクト25の長手方向に形成される成型金型のパ
ーティングラインや部分的な肉厚の偏りが外部から見え
にくくなり、美的外観が大きく向上する。Also, a duct extension member manufactured with good appearance.
Since only the portion 27 protrudes forward from the traveling wind inlet 33, the intake duct 25 is provided without the duct extension member 27.
Compared to the case where the tip of the projection itself protrudes from the traveling wind inlet 33, the parting line and partial thickness deviation of the molding die formed in the longitudinal direction of the intake duct 25 are less visible from the outside, The appearance is greatly improved.
【００２３】ところで、フロントカウリング２は、フロ
ントフォーク８の上部から車体フレーム３の前半とエン
ジンまでを覆うような形状に造形されており、合成樹脂
成型された複数のカウリング構成部材から組み立てられ
ている。例えば、図１に示すように、フロントカウリン
グ２の前頭部に位置するカウリングボディー35の両側下
部に左右一対のカウリングサイド36が繋がり、これら左
右両側のカウリングサイド36の下端にカウリングアンダ
ー37が連結され、図３に示すように左右両側のカウリン
グサイド36の内側には小形のサイドインナーパネル38が
固定される構造となっている。サイドインナーパネル38
は、自動二輪車１の走行時に前方から吹きつける向かい
風をラジエーター20へ導く導風板として機能するもので
ある。The front cowling 2 is shaped to cover from the upper part of the front fork 8 to the first half of the body frame 3 and the engine, and is assembled from a plurality of cowling components formed of synthetic resin. . For example, as shown in FIG. 1, a pair of left and right cowling sides 36 are connected to lower portions on both sides of a cowling body 35 located at the forehead of the front cowling 2, and a cowling under 37 is connected to lower ends of these right and left cowling sides 36. As shown in FIG. 3, a small side inner panel 38 is fixed inside the cowling sides 36 on the left and right sides. Side inner panel 38
Functions as a wind guide plate for guiding the head wind blown from the front to the radiator 20 when the motorcycle 1 runs.
【００２４】これらのカウリング構成部材35，36，37，
38は、互いにスクリュー（ビス）等の締結部材により固
定されて一体化される。なお、カウリングボディー35に
は透明なウィンドスクリーン40がスクリュー等で固定さ
れるとともに、前照灯42、方向指示灯43、リヤビューミ
ラー44等の部品が取り付けられる。These cowling components 35, 36, 37,
38 are fixed and integrated with each other by a fastening member such as a screw (screw). In addition, a transparent wind screen 40 is fixed to the cowling body 35 with a screw or the like, and components such as a headlight 42, a direction indicator lamp 43, and a rear view mirror 44 are attached.
【００２５】前述の走行風導入口33は、カウリングサイ
ド36とサイドインナーパネル38との間の合わせ目に設け
られている。即ち、図３に示すように、カウリングサイ
ド36の前縁には正面視で略「コ」の字形の湾入部46が形
成されており、この部分に平板状のサイドインナーパネ
ル38の前縁38ａが合わせられることにより、走行風導入
口33が形作られる。なお、走行風導入口33を他のカウリ
ング構成部材、例えばカウリングボディー35とカウリン
グサイド36との間の合わせ目等に設けてもよい。The above-mentioned traveling wind inlet 33 is provided at a joint between the cowling side 36 and the side inner panel 38. That is, as shown in FIG. 3, the front edge of the cowling side 36 is formed with a substantially U-shaped indented portion 46 in a front view, and the front edge 38a of the flat side inner panel 38 is formed in this portion. Are adjusted to form the traveling wind introduction port 33. Note that the traveling wind inlet 33 may be provided at another cowling component, for example, at a joint between the cowling body 35 and the cowling side 36.
【００２６】サイドインナーパネル38には３つの筒状の
締結部47，48，49が一体に成型されており、これらの締
結部47，48，49が、カウリングサイド36に一体に成型さ
れた３つの締結ボス50，51，52に、それぞれスクリュー
53で締結される。その際、吸気ダクト25の上下の輪郭部
に一体成型された締結片54，55（図１にも表示）が、サ
イドインナーパネル38の２つの締結部47，48とカウリン
グサイド36の締結ボス50，51との間に挟まれて共締めさ
れる。The side inner panel 38 is integrally formed with three tubular fastening portions 47, 48 and 49, and these fastening portions 47, 48 and 49 are integrally formed on the cowling side 36. Screws on each of the fastening bosses 50, 51, 52
Concluded at 53. At this time, fastening pieces 54 and 55 (also shown in FIG. 1) integrally formed on the upper and lower contours of the intake duct 25 are provided with two fastening portions 47 and 48 of the side inner panel 38 and a fastening boss 50 of the cowling side 36. , 51 and fastened together.
【００２７】一方、走行風導入口33が形成される部分の
内周面、即ちカウリングサイド36の湾入部46の内周面
と、サイドインナーパネル38の前縁38ａ付近には、それ
ぞれ上下一対の嵌合凸部57，58が、互いに向き合うよう
に一体成型されている。これらの嵌合凸部57，58は、例
えば短い円筒形に造形されている。On the other hand, a pair of upper and lower portions are formed on the inner peripheral surface of the portion where the traveling wind inlet 33 is formed, that is, the inner peripheral surface of the bay portion 46 of the cowling side 36 and the vicinity of the front edge 38a of the side inner panel 38. The fitting projections 57 and 58 are integrally formed so as to face each other. These fitting projections 57 and 58 are formed into, for example, a short cylindrical shape.
【００２８】他方、ダクト延長部材27の後半部分27ｒの
外周面には、上記嵌合凸部57，58を嵌合可能な嵌合凹部
59，60が形成されている。つまり、この嵌合凹部59，60
は、嵌合凸部57，58の位置に合うようにダクト延長部材
27の後半部分27ｒの両側縦壁面に上下に２つずつ刻設さ
れている。なお、この嵌合凹部59，60は単なる貫通穴状
に形成してもよい。On the other hand, on the outer peripheral surface of the rear half portion 27r of the duct extension member 27, a fitting concave portion into which the fitting convex portions 57 and 58 can be fitted.
59 and 60 are formed. That is, the fitting recesses 59, 60
Is a duct extension member so as to match the position of the fitting projections 57 and 58.
Two are engraved on the vertical wall surfaces on both sides of the latter half 27r of the 27 each. The fitting recesses 59 and 60 may be formed in a simple through-hole shape.
【００２９】そして、カウリングサイド36とサイドイン
ナーパネル38の嵌合凸部57，58を、ダクト延長部材27の
嵌合凹部59，60に嵌合させることにより、カウリングサ
イド36とサイドインナーパネル38に挟まれるようにして
ダクト延長部材27が走行風導入口33に固定される。全体
の組立手順としては、まず吸気ダクト25に吸気ネット28
とダクト延長部材27を嵌合し、次にダクト延長部材27の
嵌合凹部59，60をカウリングサイド36とサイドインナー
パネル38の嵌合凸部57，58に嵌め込みながら吸気ダクト
25とカウリングサイド36とサイドインナーパネル38を重
ね合わせ、最後にスクリュー53で３部材25（締結片54，
55），36，38を共締めする。The fitting projections 57, 58 of the cowling side 36 and the side inner panel 38 are fitted to the fitting recesses 59, 60 of the duct extension member 27, so that the cowling side 36 and the side inner panel 38 are fitted. The duct extension member 27 is fixed to the traveling wind introduction port 33 so as to be sandwiched. As a whole assembling procedure, first, the intake net 28
And the duct extension member 27 and then the fitting recesses 59 and 60 of the duct extension member 27 into the fitting projections 57 and 58 of the cowling side 36 and the side inner panel 38 while fitting the intake duct.
25, the cowling side 36 and the side inner panel 38 are overlapped, and finally the three members 25 (fastening pieces 54,
55), 36 and 38 are tightened together.
【００３０】以上のように、この吸気ダクト装置24によ
れば、フロントカウリング２の構成部材であるカウリン
グサイド36とサイドインナーパネル38の組立と同時に、
ダクト延長部材27をフロントカウリング２の走行風導入
口33に固定することができる。ダクト延長部材27の固定
には専用のスクリュー等を用いる必要が一切ないため、
極めて少ない部品点数と僅かな組立工数により、ダクト
延長部材27を走行風導入口33に確実に固定することがで
きる。As described above, according to the intake duct device 24, simultaneously with the assembly of the cowling side 36 and the side inner panel 38, which are the components of the front cowling 2,
The duct extension member 27 can be fixed to the traveling wind inlet 33 of the front cowling 2. Since there is no need to use a special screw etc. for fixing the duct extension member 27,
With a very small number of parts and a small number of assembling steps, the duct extension member 27 can be securely fixed to the traveling wind inlet 33.
【００３１】図５は、本発明に係る吸気ダクト装置の第
２実施形態を示している。この吸気ダクト装置64におい
て、吸気ダクト65の先端に吸気ネット66を介して連結さ
れるダクト延長部材67は、図７に示すように、その前半
部分67ｆと後半部分67ｒの長さが、第１実施形態のダク
ト延長部材27の場合よりも長めに形成されている。ま
た、吸気ネット66先端の段差部68の長さや、カウリング
サイド69とサイドインナーパネル70の嵌合凸部71，72か
ら走行風導入口73までの長さも第１実施形態の場合より
長目に設定されている。FIG. 5 shows a second embodiment of the intake duct device according to the present invention. In the intake duct device 64, as shown in FIG. 7, the duct extension member 67 connected to the end of the intake duct 65 via the intake net 66 has a first half 67f and a second half 67r of the first length 67r. It is formed longer than the case of the duct extension member 27 of the embodiment. Also, the length of the step 68 at the tip of the intake net 66 and the length from the fitting projections 71, 72 of the cowling side 69 and the side inner panel 70 to the traveling wind inlet 73 are longer than in the first embodiment. Is set.
【００３２】このため、吸気ネット66先端の段差部68に
嵌合されるダクト延長部材67は、吸気ダクト65と吸気ネ
ット66と走行風導入口73の位置に対し、前後方向に数セ
ンチ程度スライドすることができ、このスライドによっ
て走行風導入口73からのダクト延長部材67の突出量が変
化する。For this reason, the duct extension member 67 fitted into the step 68 at the tip of the intake net 66 slides about a few centimeters in the front-rear direction with respect to the positions of the intake duct 65, the intake net 66 and the traveling wind inlet 73. With this slide, the amount of protrusion of the duct extension member 67 from the traveling wind introduction port 73 changes.
【００３３】一方、ダクト延長部材67の後半部分67ｒの
外周面には、上下一対の嵌合凹部が、ダクト延長部材67
のスライド方向に沿って複数、例えば３組形成されてい
る。そして、これら３組の嵌合凹部74ａ，74ｂ，74ｃの
うちの任意のものを選択してカウリングサイド69とサイ
ドインナーパネル70の嵌合凸部71，72に嵌合させること
が可能になっている。On the other hand, a pair of upper and lower fitting recesses are formed on the outer peripheral surface of the rear half 67r of the duct extension member 67.
, For example, three sets are formed along the sliding direction. Then, it is possible to select an arbitrary one of these three sets of fitting concave parts 74a, 74b, 74c and fit them into the fitting convex parts 71, 72 of the cowling side 69 and the side inner panel 70. I have.
【００３４】この吸気ダクト装置64によれば、フロント
カウリングの表面（走行風導入口73）からのダクト延長
部材67の突出量を３段階に変化させることができる。ダ
クト延長部材67の突出量は、嵌合凸部71，72に嵌合凹部
74ａを嵌合させた時に最短になり、嵌合凹部74ｃを嵌合
させた時に最長になる。したがって、ダクト延長部材67
の突出量を自動二輪車１の走行条件に合わせて設定する
ことができる。According to the intake duct device 64, the protrusion amount of the duct extension member 67 from the surface of the front cowling (running air inlet 73) can be changed in three stages. The amount of protrusion of the duct extension member 67 is
It becomes the shortest when 74a is fitted, and becomes the longest when the fitting recess 74c is fitted. Therefore, the duct extension member 67
Can be set in accordance with the running conditions of the motorcycle 1.
【００３５】図８〜図10は、本発明に係る吸気ダクト装
置の第３実施形態を示している。この吸気ダクト装置に
おけるダクト延長部材79は、そのスライド量が第２実施
形態の場合よりもさらに長く設定されている。また、こ
のダクト延長部材79の後半部分79ｒの外周面には、ダク
ト延長部材79のスライド方向に沿ってより多数（例えば
８組）の円形の嵌合凹部80が互いに重なり合うようにし
て連続的に形成されている。8 to 10 show a third embodiment of the intake duct device according to the present invention. The duct extension member 79 in the intake duct device has a sliding amount set to be longer than that in the second embodiment. Further, on the outer peripheral surface of the rear half portion 79r of the duct extension member 79, a larger number (for example, eight sets) of circular fitting concave portions 80 are continuously arranged along the sliding direction of the duct extension member 79 so as to overlap each other. Is formed.
【００３６】一方、カウリングサイド（非図示）とサイ
ドインナーパネル81（図９参照）に形成される嵌合凸部
82の形状は、スリット83の入った短い円筒形に造形され
ている。スリット83の形成方向は、ダクト延長部材79の
スライド方向（嵌合凹部80の配列方向）に沿わされてい
る。この嵌合凸部82は、多数設けられた嵌合凹部80のい
ずれかに嵌合される。On the other hand, fitting projections formed on the cowling side (not shown) and the side inner panel 81 (see FIG. 9).
The shape of 82 is shaped into a short cylinder with a slit 83. The formation direction of the slit 83 is along the sliding direction of the duct extension member 79 (the arrangement direction of the fitting concave portions 80). The fitting protrusions 82 are fitted into any of the many fitting recesses 80 provided.
【００３７】このように、多数の嵌合凹部80を連続的に
形成したことにより、走行風導入口からのダクト延長部
材79の突出量をより細く設定変更することができる。し
かも、ダクト延長部材79の突出量を変更する際には、手
でダクト延長部材79を掴んで走行風導入口に対し引き出
すか押し込むようにすれば、図10に示すようにスリット
83の入った嵌合凸部82が撓んで各嵌合凹部80の間を移動
するため、カウリングサイドとサイドインナーパネル81
を分解することなく速やかにダクト延長部材79の突出量
を変更することができる。As described above, since a large number of fitting recesses 80 are formed continuously, the amount of protrusion of the duct extension member 79 from the traveling wind introduction port can be changed to be smaller. Moreover, when changing the amount of protrusion of the duct extension member 79, by grasping the duct extension member 79 by hand and pulling or pushing it into the traveling wind introduction port, the slit as shown in FIG.
Since the fitting projection 82 containing 83 is bent and moves between the fitting recesses 80, the cowling side and the side inner panel 81
The protrusion amount of the duct extension member 79 can be changed promptly without disassembling.
【００３８】なお、この第３実施形態の変形例として、
図示はしないが、例えば嵌合凹部をダクト延長部材のス
ライド方向に沿う直線溝状に形成するとともに、ダクト
延長部材と走行風導入口との間の嵌合しろをきつめに設
定し、摩擦力でダクト延長部材が走行風導入口の内部に
保持されるようにし、ダクト延長部材の突出量を無段階
に設定変更できるようにしてもよい。As a modification of the third embodiment,
Although not shown, for example, the fitting concave portion is formed in a linear groove shape along the sliding direction of the duct extension member, and the fitting margin between the duct extension member and the traveling wind introduction port is set to be tight, and the frictional force is set. Thus, the duct extension member may be held inside the traveling wind introduction port so that the amount of protrusion of the duct extension member can be changed steplessly.
【００３９】また、前記第１〜第３の実施形態におい
て、各嵌合凸部57，58，71，72，82を嵌合凹部として形
成し、各嵌合凹部59，60，74ａ，74ｂ，74ｃ，80を嵌合
凸部として形成してもよい。In the first to third embodiments, each of the fitting projections 57, 58, 71, 72, 82 is formed as a fitting recess, and each of the fitting recesses 59, 60, 74a, 74b, 74c and 80 may be formed as fitting projections.
【００４０】[0040]
【発明の効果】以上説明したように、本発明に係る自動
二輪車の吸気ダクト装置は、フロントカウリングを複数
のカウリング構成部材から構成し、これらのカウリング
構成部材の合わせ目に走行風導入口を設け、各カウリン
グ構成部材の上記走行風導入口を形成する部分の内周面
に嵌合凸部を形成する一方、吸気ダクトの先端に連結さ
れるダクト延長部材の外周面に嵌合凹部を形成し、上記
嵌合凸部と嵌合凹部とを嵌合させることによってダクト
延長部材を走行風導入口に固定したため、スクリュー等
の締結部材を用いずに、極めて少ない部品点数と僅かな
組立工数でダクト延長部材を走行風導入口に確実に固定
することができる。As described above, in the motorcycle intake duct apparatus according to the present invention, the front cowling is composed of a plurality of cowling components, and the traveling wind inlet is provided at the joint of these cowling components. A fitting recess is formed on an inner peripheral surface of a portion forming the traveling wind introduction port of each cowling component, while a fitting recess is formed on an outer peripheral surface of a duct extension member connected to a tip of an intake duct. Since the duct extending member is fixed to the traveling wind introduction port by fitting the fitting convex portion and the fitting concave portion, the duct can be formed with a very small number of parts and a small number of assembly steps without using a fastening member such as a screw. The extension member can be securely fixed to the traveling wind introduction port.
【００４１】また、本発明に係る自動二輪車の吸気ダク
ト装置は、前記ダクト延長部材を前記吸気ダクトおよび
前記走行風導入口の位置に対して自動二輪車の前後方向
にスライド可能に設けるとともに、前記嵌合凹部をダク
ト延長部材のスライド方向に沿って複数設けたため、走
行風導入口からのダクト延長部材の突出量を変化させて
自動二輪車の走行条件に合わせて設定することができ
る。Further, in the intake duct device for a motorcycle according to the present invention, the duct extension member is provided so as to be slidable in the front-rear direction of the motorcycle with respect to the positions of the intake duct and the traveling wind introduction port, and the fitting is performed. Since a plurality of concave portions are provided along the sliding direction of the duct extension member, the protrusion amount of the duct extension member from the traveling wind introduction port can be changed and set in accordance with the traveling conditions of the motorcycle.
【図１】本発明に係る吸気ダクト装置が適用された自動
二輪車の左側面図。FIG. 1 is a left side view of a motorcycle to which an intake duct device according to the present invention is applied.
【図２】図１に示す自動二輪車の正面図。FIG. 2 is a front view of the motorcycle shown in FIG.
【図３】本発明の第１実施形態を示す吸気ダクト装置の
分解斜視図。FIG. 3 is an exploded perspective view of the intake duct device showing the first embodiment of the present invention.
【図４】図１の IV-IV線に沿う吸気ダクト装置の横断面
図。FIG. 4 is a cross-sectional view of the intake duct device taken along the line IV-IV in FIG. 1;
【図５】本発明の第２実施形態を示す吸気ダクト装置の
横断面図。FIG. 5 is a cross-sectional view of an intake duct device showing a second embodiment of the present invention.
【図６】本発明の第１実施形態におけるダクト延長部材
の斜視図。FIG. 6 is a perspective view of a duct extension member according to the first embodiment of the present invention.
【図７】本発明の第２実施形態におけるダクト延長部材
の斜視図。FIG. 7 is a perspective view of a duct extension member according to a second embodiment of the present invention.
【図８】本発明の第３実施形態におけるダクト延長部材
の斜視図。FIG. 8 is a perspective view of a duct extension member according to a third embodiment of the present invention.
【図９】本発明の第３実施形態におけるサイドインナー
パネルの嵌合凸部の拡大図。FIG. 9 is an enlarged view of a fitting protrusion of a side inner panel according to a third embodiment of the present invention.
【図１０】本発明の第３実施形態における嵌合凸部と嵌
合凹部の嵌合状態を示す側面図。FIG. 10 is a side view showing a fitting state of a fitting projection and a fitting recess in the third embodiment of the present invention.
１ 自動二輪車 ２ フロントカウリング 22 吸気装置としてのエアボックス 24 吸気ダクト装置 25 吸気ダクト 26 ダクトジョイント 27 ダクト延長部材 28 吸気ネット 33 走行風導入口 36 カウリング構成部材としてのカウリングサイド 38 カウリング構成部材としてのサイドインナーパネル 38ａ 走行風導入口を形成する部分であるサイドインナ
ーパネルの前縁 46 走行風導入口を形成する部分であるカウリングサイ
ドの湾入部 57，58 嵌合凸部 59，60 嵌合凹部DESCRIPTION OF SYMBOLS 1 Motorcycle 2 Front cowling 22 Air box as intake device 24 Intake duct device 25 Intake duct 26 Duct joint 27 Duct extension member 28 Intake net 33 Running air inlet 36 Cowling side as cowling component 38 Side as cowling component Inner panel 38a Front edge of side inner panel that forms part of running wind introduction port 46 Cowling side bayonet part that forms part of running wind introduction port 57, 58 Fitting convex part 59, 60 Fitting concave part
Claims (2)
体のダクト延長部材が連結され、上記ダクト延長部材
が、車体の前頭部を覆うフロントカウリングに形成され
た走行風導入口に挿入固定されて前方に向けて開口し、
自動二輪車の走行時に前方から吹きつける向かい風がダ
クト延長部材と吸気ダクトとを経て上記吸気装置に導か
れるように構成された自動二輪車の吸気ダクト装置にお
いて、上記フロントカウリング２を複数のカウリング構
成部材から構成し、これらのカウリング構成部材の合わ
せ目に上記走行風導入口33を設け、各カウリング構成部
材の上記走行風導入口33を形成する部分の内周面に嵌合
凸部57，58を形成する一方、ダクト延長部材27の外周面
に嵌合凹部59，60を形成し、上記嵌合凸部57，58と嵌合
凹部59，60とを嵌合させることによってダクト延長部材
27を走行風導入口33に固定したことを特徴とする自動二
輪車の吸気ダクト装置。1. A separate duct extension member is connected to an end of an intake duct connected to an intake device, and the duct extension member is inserted and fixed into a traveling wind inlet formed in a front cowling that covers a front head of a vehicle body. Has been opened forward,
In a motorcycle intake duct device configured such that a head wind blown from the front when the motorcycle travels is guided to the intake device through a duct extension member and an intake duct, the front cowling 2 is made up of a plurality of cowling components. The cowling components are provided with the traveling wind inlets 33 at the joints thereof, and fitting projections 57, 58 are formed on the inner peripheral surfaces of the portions forming the traveling wind inlets 33 of the respective cowling components. On the other hand, fitting recesses 59, 60 are formed on the outer peripheral surface of the duct extension member 27, and the fitting projections 57, 58 and the fitting recesses 59, 60 are fitted to each other.
An intake duct device for a motorcycle, wherein 27 is fixed to a traveling wind inlet 33.
65および前記走行風導入口73の位置に対して自動二輪車
の前後方向にスライド可能に設けるとともに、前記嵌合
凹部74ａ，74ｂ，74ｃをダクト延長部材67のスライド方
向に沿って複数設けた請求項１に記載の自動二輪車の吸
気ダクト装置。2. The air intake duct according to claim 2, wherein
A motorcycle is provided so as to be slidable in the front-rear direction of the motorcycle with respect to a position of the traveling wind introduction port and a plurality of the fitting recesses are provided along a sliding direction of the duct extension member. 2. The intake duct device for a motorcycle according to 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00110498A JP3525713B2 (en) | 1998-01-06 | 1998-01-06 | Motorcycle air intake duct device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00110498A JP3525713B2 (en) | 1998-01-06 | 1998-01-06 | Motorcycle air intake duct device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001392546A Division JP3608549B2 (en) | 2001-12-25 | 2001-12-25 | Intake duct device for motorcycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11192989A true JPH11192989A (en) | 1999-07-21 |
| JP3525713B2 JP3525713B2 (en) | 2004-05-10 |
Family
ID=11492186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP00110498A Expired - Lifetime JP3525713B2 (en) | 1998-01-06 | 1998-01-06 | Motorcycle air intake duct device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3525713B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1083330A3 (en) * | 1999-09-07 | 2001-10-10 | Honda Giken Kogyo Kabushiki Kaisha | Air cleaner system for motorcycle |
| EP1087127A3 (en) * | 1999-09-21 | 2001-11-28 | Kawasaki Jukogyo Kabushiki Kaisha | Intake apparatus of engine for vehicle |
| EP1382834A1 (en) | 2002-07-16 | 2004-01-21 | Ducati Motor Holding S.p.A. | An induction unit for a motorcycle |
| JP2010254094A (en) * | 2009-04-23 | 2010-11-11 | Ogk Co Ltd | Child seat for bicycle |
-
1998
- 1998-01-06 JP JP00110498A patent/JP3525713B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1083330A3 (en) * | 1999-09-07 | 2001-10-10 | Honda Giken Kogyo Kabushiki Kaisha | Air cleaner system for motorcycle |
| EP1087127A3 (en) * | 1999-09-21 | 2001-11-28 | Kawasaki Jukogyo Kabushiki Kaisha | Intake apparatus of engine for vehicle |
| US6422332B1 (en) | 1999-09-21 | 2002-07-23 | Kawasaki Jukogyo Kabushiki Kaisha | Intake apparatus of engine for vehicle |
| EP1382834A1 (en) | 2002-07-16 | 2004-01-21 | Ducati Motor Holding S.p.A. | An induction unit for a motorcycle |
| JP2010254094A (en) * | 2009-04-23 | 2010-11-11 | Ogk Co Ltd | Child seat for bicycle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3525713B2 (en) | 2004-05-10 |
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