JP6964108B2 - Saddle-type vehicle - Google Patents

Saddle-type vehicle Download PDF

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JP6964108B2
JP6964108B2 JP2019058199A JP2019058199A JP6964108B2 JP 6964108 B2 JP6964108 B2 JP 6964108B2 JP 2019058199 A JP2019058199 A JP 2019058199A JP 2019058199 A JP2019058199 A JP 2019058199A JP 6964108 B2 JP6964108 B2 JP 6964108B2
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saddle
stay
vehicle
silencer
combustion engine
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JP2020157877A (en
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徳一 山崎
侑史 倉澤
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Priority to JP2019058199A priority Critical patent/JP6964108B2/en
Priority to CN202010219821.XA priority patent/CN111749775B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles

Description

本発明は、内燃機関からの排気を消音する消音器を備える鞍乗型車両に関する。 The present invention relates to a saddle-mounted vehicle including a silencer that silences exhaust gas from an internal combustion engine.

例えば、特許文献１には、マフラーの一点から２本のステーを延ばして内燃機関に連結し、２本のステーの中間部分を連結パイプ部材で連結したトラス構造が開示されている。この構造では、連結パイプ部材が、マフラーの回転を抑制する回り止めステーとして機能する。 For example, Patent Document 1 discloses a truss structure in which two stays are extended from one point of a muffler and connected to an internal combustion engine, and an intermediate portion of the two stays is connected by a connecting pipe member. In this structure, the connecting pipe member functions as a detent stay that suppresses the rotation of the muffler.

特許第６０５７９５１号公報Japanese Patent No. 6057951

ところで、鞍乗型車両では、消音器の振動が内燃機関や車体フレームに伝わらないようにすることが望ましい。しかしながら、特許文献１の構造では、マフラー（消音器）の振動が２本のステーを介して内燃機関に伝達される。また、回り止めステーとしての連結パイプ部材も剛性の高い部材とする必要がある。 By the way, in a saddle-mounted vehicle, it is desirable that the vibration of the silencer is not transmitted to the internal combustion engine or the vehicle body frame. However, in the structure of Patent Document 1, the vibration of the muffler (silencer) is transmitted to the internal combustion engine via the two stays. Further, the connecting pipe member as the detent stay must also be a member having high rigidity.

そこで、本発明は、回り止めステーの剛性を低減すると共に、消音器から内燃機関及び車体フレームへの振動の伝達を抑制することができる鞍乗型車両を提供することを目的とする。 Therefore, an object of the present invention is to provide a saddle-type vehicle capable of reducing the rigidity of the detent stay and suppressing the transmission of vibration from the silencer to the internal combustion engine and the vehicle body frame.

本発明の態様は、車体フレーム（１４）に支持される内燃機関（３４）からの排気を消音する消音器（４０）を備える鞍乗型車両（１０）に関する。前記鞍乗型車両（１０）は、前記消音器（４０）を前記内燃機関（３４）に取り付けるための支持ステー（４６）と、前記支持ステー（４６）の前記内燃機関（３４）側から延び、前記内燃機関（３４）又は前記車体フレーム（１４）に取り付けられることで、前記消音器（４０）の回転を規制する回り止めステー（６６）とをさらに備える。前記回り止めステー（６６）の前記支持ステー（４６）側は、前記内燃機関（３４）に取り付けられていない。また、前記回り止めステー（６６）の前記支持ステー（４６）側と、前記支持ステー（４６）の前記回り止めステー（６６）側とは、面接触した状態で重なり合い、重なり合った部分が溶接留めされている。
Aspects of the present invention relate to a saddle-mounted vehicle (10) including a silencer (40) that silences exhaust gas from an internal combustion engine (34) supported by a vehicle body frame (14). The saddle-mounted vehicle (10) extends from a support stay (46) for attaching the silencer (40) to the internal combustion engine (34) and the internal combustion engine (34) side of the support stay (46). A detent stay (66) that regulates the rotation of the silencer (40) by being attached to the internal combustion engine (34) or the vehicle body frame (14) is further provided. The support stay (46) side of the detent stay (66) is not attached to the internal combustion engine (34). Further, the support stay (46) side of the detent stay (66) and the detent stay (66) side of the support stay (46) overlap in a surface contact state, and the overlapped portion is welded and fastened. Has been done.

この場合、前記支持ステー（４６）は、前記鞍乗型車両（１０）の車幅方向に分割可能な外側部材（４８）と内側部材（５０）とから構成され、前記鞍乗型車両（１０）の前後方向から見た断面形状が矩形状である。 In this case, the support stay (46) is composed of an outer member (48) and an inner member (50) that can be divided in the vehicle width direction of the saddle-mounted vehicle (10), and the saddle-mounted vehicle (10). ) Is rectangular in cross-sectional shape when viewed from the front-back direction.

また、前記消音器（４０）は、前記鞍乗型車両（１０）の車幅方向内側の内壁（６４）、前記鞍乗型車両（１０）の前後方向前方の前壁（６０）、及び、前記鞍乗型車両（１０）の上下方向上方の上壁（６２）を備え、前記支持ステー（４６）は、前記内壁（６４）、前記前壁（６０）及び前記上壁（６２）のうち、少なくとも２つの壁から延びている。
Further, the silencer (40) includes an inner wall (64) inside the saddle-mounted vehicle (10) in the vehicle width direction, a front wall (60) in the front-rear direction of the saddle-mounted vehicle (10), and the front wall (60). The saddle-mounted vehicle (10) is provided with an upper wall (62) in the vertical direction, and the support stay (46) is one of the inner wall (64), the front wall (60), and the upper wall (62) . , Extending from at least two walls.

なお、前記支持ステー（４６）は、前記鞍乗型車両（１０）の車幅方向に分割可能な外側部材（４８）と内側部材（５０）とから構成され、前記外側部材（４８）及び前記内側部材（５０）は、互いに重なり、溶接留めされている。また、前記回り止めステー（６６）は、前記支持ステー（４６）側が前記車幅方向に折り曲げて形成される板状部材であり、前記回り止めステー（６６）の折り曲げ部分は、前記支持ステー（４６）と重なり合った溶接留めの部分である。さらに、前記折り曲げ部分は、前記回り止めステー（６６）の前記内燃機関（３４）又は前記車体フレーム（１４）との取り付け部分まで延びている。
The support stay (46) is composed of an outer member (48) and an inner member (50) that can be divided in the vehicle width direction of the saddle-mounted vehicle (10), and the outer member (48) and the above. The inner members (50 ) overlap each other and are welded together. Further, the detent stay (66) is a plate-shaped member formed by bending the support stay (46) side in the vehicle width direction, and the bent portion of the detent stay (66) is the support stay (46). It is a welded fastener part that overlaps with 46). Further, the bent portion extends to a mounting portion of the detent stay (66) with the internal combustion engine (34) or the vehicle body frame (14).

本発明によれば、回り止めステーは、支持ステーの内燃機関側と内燃機関又は車体フレームとの間を連結する。これにより、剛性の低い部材を回り止めステーとして採用することが可能となる。また、消音器から支持ステーを介した内燃機関又は車体フレームへの振動の伝達を効果的に抑制することができる。 According to the present invention, the detent stay connects between the internal combustion engine side of the support stay and the internal combustion engine or the vehicle body frame. This makes it possible to use a member having low rigidity as a detent stay. Further, it is possible to effectively suppress the transmission of vibration from the silencer to the internal combustion engine or the vehicle body frame via the support stay.

また、消音器側を支持する部材が支持ステーのみであるため、上下方向及び車幅方向の剛性を確保する必要がある。そこで、略矩形状の断面形状の支持ステーを用いることで、該支持ステーの加工を容易にしつつ、剛性を確保することが可能となる。 Further, since the only member that supports the silencer side is the support stay, it is necessary to secure the rigidity in the vertical direction and the vehicle width direction. Therefore, by using a support stay having a substantially rectangular cross-sectional shape, it is possible to secure the rigidity while facilitating the processing of the support stay.

また、支持ステーが消音器の前壁及び上壁から延びていることで、消音器の前後方向への回転を容易に規制することができる。 Further, since the support stay extends from the front wall and the upper wall of the silencer, the rotation of the silencer in the front-rear direction can be easily regulated.

さらに、支持ステーが消音器の内壁及び前壁から延びていることで、消音器の車幅方向への回転を容易に規制することができる。 Further, since the support stay extends from the inner wall and the front wall of the silencer, the rotation of the silencer in the vehicle width direction can be easily regulated.

さらにまた、支持ステーが消音器の上壁及び内壁から延びていることで、消音器の車幅方向への回転を容易に規制することができる。 Furthermore, since the support stays extend from the upper wall and the inner wall of the silencer, the rotation of the silencer in the vehicle width direction can be easily regulated.

また、支持ステー及び回り止めステーの重なり部分や、外側部材及び内側部材の重なり部分を溶接留めすることで、支持ステー及び回り止めステーの連結に関わる加工が一層容易になる。
Also, and the overlapping portion of the support stay and detent stay, by the overlapping portion of the outer member and inner member are welded fastening, processing becomes easier involved in connecting the support stay and detent stays.

自動二輪車の右側面図である。It is a right side view of a motorcycle. 図１の消音器の斜視図である。It is a perspective view of the silencer of FIG. 図１の消音器の左側面図である。It is a left side view of the silencer of FIG. 図１の消音器の平面図である。It is a top view of the silencer of FIG.

以下、本発明に係る鞍乗型車両について、好適な実施形態を掲げ、添付の図面を参照しながら、以下詳細に説明する。 Hereinafter, the saddle-mounted vehicle according to the present invention will be described in detail below with reference to the accompanying drawings, with reference to preferred embodiments.

［１．自動二輪車１０の概略構成］
図１は、本実施形態に係る鞍乗型車両としての自動二輪車１０の右側面図である。なお、本実施形態では、自動二輪車１０のシート１２に着座した運転者から見た方向を基準に、自動二輪車１０の前後、左右及び上下の方向を説明する。また、左右一対の構成要素については、左側の構成要素の参照数字に「Ｌ」、右側の構成要素の参照数字に「Ｒ」の符号を付けて説明する場合がある。 [1. Outline configuration of motorcycle 10]
FIG. 1 is a right side view of the motorcycle 10 as a saddle-type vehicle according to the present embodiment. In the present embodiment, the front-rear, left-right, and up-down directions of the motorcycle 10 will be described with reference to the direction seen from the driver seated on the seat 12 of the motorcycle 10. Further, the pair of left and right components may be described by adding a reference number of "L" to the reference number of the left component and an "R" to the reference number of the right component.

本実施形態は、図１に示すスクータ型の自動二輪車１０に適用される。なお、本実施形態は、図１の自動二輪車１０に限定されることはなく、各種の鞍乗型車両に適用可能である。 This embodiment is applied to the scooter type motorcycle 10 shown in FIG. The present embodiment is not limited to the motorcycle 10 of FIG. 1, and can be applied to various saddle-mounted vehicles.

自動二輪車１０は、車体フレーム１４を有する。車体フレーム１４は、ヘッドパイプ１６と、ヘッドパイプ１６から斜め下後方に延びるダウンフレーム１８と、ダウンフレーム１８の下端部から左右後方に延びる左右一対のロアフレーム２０Ｌ、２０Ｒと、左右一対のロアフレーム２０Ｌ、２０Ｒの後端部から斜め上後方に延びる左右一対のリアフレーム２２Ｌ、２２Ｒとを備える。 The motorcycle 10 has a body frame 14. The vehicle body frame 14 includes a head pipe 16, a down frame 18 extending diagonally downward and rearward from the head pipe 16, a pair of left and right lower frames 20L and 20R extending diagonally downward and rearward from the lower end of the down frame 18, and a pair of left and right lower frames. A pair of left and right rear frames 22L and 22R extending diagonally upward and rearward from the rear end portion of the 20L and 20R are provided.

ヘッドパイプ１６は、左右一対のフロントフォーク２４Ｌ、２４Ｒを操舵可能に支持する。ヘッドパイプ１６の上部には、運転者が操向するバーハンドル２６が取り付けられている。フロントフォーク２４Ｌ、２４Ｒの下端部には、前輪２８が回転可能に支持されている。左右一対のロアフレーム２０Ｌ、２０Ｒは、運転者が足を載せるフロアステップ３０を支持する。左右一対のリアフレーム２２Ｌ、２２Ｒは、シート１２や不図示の収納ボックスを支持する。なお、車体フレーム１４は、車体カバー３２で覆われている。 The head pipe 16 supports a pair of left and right front forks 24L and 24R so as to be steerable. A bar handle 26 steered by the driver is attached to the upper portion of the head pipe 16. The front wheels 28 are rotatably supported at the lower ends of the front forks 24L and 24R. The pair of left and right lower frames 20L and 20R support the floor step 30 on which the driver rests his / her feet. The pair of left and right rear frames 22L and 22R support the seat 12 and a storage box (not shown). The body frame 14 is covered with a body cover 32.

リアフレーム２２Ｌ、２２Ｒは、内燃機関３４を下方に支持する。内燃機関３４の右方には、排気装置３６が配置されている。排気装置３６は、前端部が内燃機関３４の排気ポートに連結される排気管３８を有する。排気管３８の後端部には、内燃機関３４の排気ポートからの排気を消音する消音器４０が連結されている。消音器４０は、略円柱形状のマフラーであって、後輪４２の右方でやや斜め上後方に延びている。消音器４０の右側には、遮熱カバー４４がステーやボルト等の締結手段４５によって該消音器４０に取り付けられている。なお、消音器４０の構造は、特許文献１等により公知であるため、その詳細な説明は省略する。 The rear frames 22L and 22R support the internal combustion engine 34 downward. An exhaust device 36 is arranged on the right side of the internal combustion engine 34. The exhaust device 36 has an exhaust pipe 38 whose front end is connected to the exhaust port of the internal combustion engine 34. A silencer 40 that silences the exhaust gas from the exhaust port of the internal combustion engine 34 is connected to the rear end of the exhaust pipe 38. The silencer 40 is a substantially cylindrical muffler, and extends slightly diagonally upward and backward to the right of the rear wheel 42. On the right side of the silencer 40, a heat shield cover 44 is attached to the silencer 40 by fastening means 45 such as stays and bolts. Since the structure of the silencer 40 is known from Patent Document 1 and the like, detailed description thereof will be omitted.

［２．消音器４０周辺の構成］
次に、本実施形態に係る自動二輪車１０の特徴的な構成である、消音器４０周辺の構成について、図２〜図４を参照しながら説明する。 [2. Configuration around silencer 40]
Next, the configuration around the silencer 40, which is a characteristic configuration of the motorcycle 10 according to the present embodiment, will be described with reference to FIGS. 2 to 4.

内燃機関３４の後部の上側部分には、支持ステー４６が消音器４０から後輪４２（図１参照）の右側前方に延び、消音器４０を支持している。すなわち、消音器４０は、後輪４２の右方において、支持ステー４６を介して内燃機関３４に取り付けられている。 In the upper portion of the rear part of the internal combustion engine 34, a support stay 46 extends from the silencer 40 to the front on the right side of the rear wheel 42 (see FIG. 1) to support the silencer 40. That is, the silencer 40 is attached to the internal combustion engine 34 via the support stay 46 on the right side of the rear wheel 42.

支持ステー４６は、図２及び図４に示すように、前後方向（支持ステー４６の長手方向）から見ると、略矩形状の断面形状を有する。すなわち、支持ステー４６は、車幅方向（左右方向）に分割可能であって、車幅方向外側の外側部材４８と、車幅方向内側の内側部材５０とから構成される。外側部材４８及び内側部材５０は、共に断面略Ｕ字状に形成されている。 As shown in FIGS. 2 and 4, the support stay 46 has a substantially rectangular cross-sectional shape when viewed from the front-rear direction (longitudinal direction of the support stay 46). That is, the support stay 46 can be divided in the vehicle width direction (left-right direction), and is composed of an outer member 48 on the outer side in the vehicle width direction and an inner member 50 on the inner side in the vehicle width direction. Both the outer member 48 and the inner member 50 are formed in a substantially U-shaped cross section.

この場合、外側部材４８の上端部と内側部材５０の上端部とが重なり合うと共に、外側部材４８の下端部と内側部材５０の下端部とが重なり合っている。重なり合った上側部分及び下側部分が溶接等によって接合されることで、支持ステー４６は、略矩形状の断面形状となる。 In this case, the upper end of the outer member 48 and the upper end of the inner member 50 overlap, and the lower end of the outer member 48 and the lower end of the inner member 50 overlap. The overlapping upper portion and lower portion are joined by welding or the like, so that the support stay 46 has a substantially rectangular cross-sectional shape.

このような構造の支持ステー４６は、前後方向に延び、ボルト等の締結部材５２によって内燃機関３４の後部に取り付けられる取付部５４と、取付部５４から消音器４０に向かって斜め右後方に延びる延出部５６と、延出部５６に連なり且つ消音器４０を支持する支持部５８とを有する。 The support stay 46 having such a structure extends in the front-rear direction, and extends diagonally to the right and rear toward the mounting portion 54 and the mounting portion 54, which are attached to the rear portion of the internal combustion engine 34 by a fastening member 52 such as a bolt. It has an extension portion 56 and a support portion 58 that is connected to the extension portion 56 and supports the silencer 40.

略円柱形状の消音器４０は、排気管３８側（前後方向前方）の前壁６０と、上側部分を構成する上下方向上方の上壁６２と、車幅方向内側部分を構成する内壁６４とを有する。このような消音器４０の形状に対応して、支持ステー４６の支持部５８は、前壁６０、上壁６２及び内壁６４に接触するように、延出部５６から前壁６０、上壁６２及び内壁６４に沿って延びている。 The substantially cylindrical silencer 40 includes a front wall 60 on the exhaust pipe 38 side (front in the front-rear direction), an upper wall 62 in the vertical direction forming the upper part, and an inner wall 64 forming the inner part in the vehicle width direction. Have. Corresponding to the shape of the silencer 40, the support portion 58 of the support stay 46 comes into contact with the front wall 60, the upper wall 62, and the inner wall 64 from the extending portion 56 to the front wall 60, the upper wall 62. And extends along the inner wall 64.

この場合、支持部５８は、前壁６０、上壁６２及び内壁６４と面接触した状態で消音器４０を支持していればよい。あるいは、支持部５８は、前壁６０、上壁６２及び内壁６４との接触箇所を何らかの固定手段を介して固定支持してもよい。従って、支持ステー４６は、消音器４０の前壁６０、上壁６２及び内壁６４から内燃機関３４に向かって延びた状態で、該消音器４０を内燃機関３４に取り付ける。 In this case, the support portion 58 may support the silencer 40 in a state of being in surface contact with the front wall 60, the upper wall 62, and the inner wall 64. Alternatively, the support portion 58 may fix and support the contact points with the front wall 60, the upper wall 62, and the inner wall 64 via some fixing means. Therefore, the support stay 46 attaches the silencer 40 to the internal combustion engine 34 in a state of extending from the front wall 60, the upper wall 62, and the inner wall 64 of the silencer 40 toward the internal combustion engine 34.

一方、支持ステー４６には、消音器４０の回転を規制するための回り止めステー６６が取り付けられている。回り止めステー６６は、支持ステー４６の取付部５４の下端部から下方に延び、内燃機関３４の後部の下側部分に連結されている。 On the other hand, the support stay 46 is provided with a detent stay 66 for restricting the rotation of the silencer 40. The detent stay 66 extends downward from the lower end of the mounting portion 54 of the support stay 46 and is connected to the lower portion of the rear portion of the internal combustion engine 34.

この場合、外側部材４８の下端部と内側部材５０の下端部とが重なり合った部分のうち、取付部５４側の箇所が、取付部５４における略平面状の下端部を形成する。回り止めステー６６の上端部は、取付部５４の下端部に面接触する平面部分を有する。従って、取付部５４の下端部と回り止めステー６６の上端部とは、面接触した状態で互いに重なり合っている。このように重なり合った部分は、溶接留めされている。 In this case, of the portion where the lower end portion of the outer member 48 and the lower end portion of the inner member 50 overlap, the portion on the mounting portion 54 side forms a substantially flat lower end portion of the mounting portion 54. The upper end portion of the detent stay 66 has a flat portion that comes into surface contact with the lower end portion of the mounting portion 54. Therefore, the lower end of the mounting portion 54 and the upper end of the detent stay 66 overlap each other in a surface contact state. The overlapping portions are welded together.

なお、本実施形態では、前後方向に延びている取付部５４の下端部（外側部材４８及び内側部材５０の各下端部）と、回り止めステー６６の上端部とが互いに重なり合い、重なり合った部分の少なくとも一部が溶接留めされていればよい。 In the present embodiment, the lower end portion of the mounting portion 54 extending in the front-rear direction (the lower end portion of each of the outer member 48 and the inner member 50) and the upper end portion of the detent stay 66 overlap each other, and the overlapped portion. At least a part of it may be welded.

一方、回り止めステー６６の下端部は、ボルト等の締結部材６８によって内燃機関３４の後部の下側部分に固定されている。 On the other hand, the lower end portion of the detent stay 66 is fixed to the lower portion of the rear portion of the internal combustion engine 34 by a fastening member 68 such as a bolt.

そして、本実施形態では、消音器４０の前壁６０、上壁６２及び内壁６４が支持ステー４６の支持部５８によって面接触で支持されている。また、支持ステー４６の取付部５４は、内燃機関３４の後部の上側部分に取り付けられている。さらに、回り止めステー６６は、取付部５４と内燃機関３４の後部の下側部分との間を連結している。 Then, in the present embodiment, the front wall 60, the upper wall 62, and the inner wall 64 of the silencer 40 are supported by the support portion 58 of the support stay 46 by surface contact. Further, the mounting portion 54 of the support stay 46 is mounted on the upper portion of the rear portion of the internal combustion engine 34. Further, the detent stay 66 connects the mounting portion 54 and the lower portion of the rear portion of the internal combustion engine 34.

これにより、略円柱形状の消音器４０が該消音器４０の振動によって軸回りに回転しようとしても、支持ステー４６の取付部５４が回り止めステー６６によって内燃機関３４に保持されているため、消音器４０の回転を好適に抑制することができる。また、消音器４０から支持ステー４６を介した内燃機関３４及び車体フレーム１４への振動の伝達を好適に抑制することができる。 As a result, even if the substantially cylindrical silencer 40 tries to rotate around the axis due to the vibration of the silencer 40, the mounting portion 54 of the support stay 46 is held by the internal combustion engine 34 by the rotation prevention stay 66, so that the sound is silenced. The rotation of the vessel 40 can be suitably suppressed. Further, the transmission of vibration from the silencer 40 to the internal combustion engine 34 and the vehicle body frame 14 via the support stay 46 can be suitably suppressed.

なお、回り止めステー６６の他端部は、内燃機関３４の後部ではなく、車体フレーム１４（リアフレーム２２Ｒ）に固定されてもよい。この場合でも、消音器４０の回転を抑制することが可能である。 The other end of the detent stay 66 may be fixed to the vehicle body frame 14 (rear frame 22R) instead of the rear portion of the internal combustion engine 34. Even in this case, it is possible to suppress the rotation of the silencer 40.

［３．本実施形態の効果］
以上説明したように、本実施形態は、車体フレーム１４に支持される内燃機関３４からの排気を消音する消音器４０を備える自動二輪車１０（鞍乗型車両）に関する。自動二輪車１０は、消音器４０を内燃機関３４に取り付けるための支持ステー４６と、支持ステー４６の内燃機関３４側から延び、内燃機関３４又は車体フレーム１４に取り付けられることで、消音器４０の回転を規制する回り止めステー６６とをさらに備える。 [3. Effect of this embodiment]
As described above, the present embodiment relates to a motorcycle 10 (saddle-type vehicle) including a silencer 40 that silences exhaust gas from an internal combustion engine 34 supported by a vehicle body frame 14. The motorcycle 10 has a support stay 46 for attaching the muffler 40 to the internal combustion engine 34, and the muffler 40 rotates by extending from the internal combustion engine 34 side of the support stay 46 and being attached to the internal combustion engine 34 or the vehicle body frame 14. It is further provided with a detent stay 66 for regulating the above.

この構成によれば、回り止めステー６６は、支持ステー４６の内燃機関３４側と内燃機関３４又は車体フレーム１４との間を連結する。これにより、剛性の低い部材を回り止めステー６６として採用することが可能となる。また、消音器４０から支持ステー４６を介した内燃機関３４又は車体フレーム１４への振動の伝達を効果的に抑制することができる。 According to this configuration, the detent stay 66 connects the internal combustion engine 34 side of the support stay 46 with the internal combustion engine 34 or the vehicle body frame 14. This makes it possible to use a member having low rigidity as the detent stay 66. Further, the transmission of vibration from the silencer 40 to the internal combustion engine 34 or the vehicle body frame 14 via the support stay 46 can be effectively suppressed.

この場合、支持ステー４６は、車幅方向に分割可能な外側部材４８と内側部材５０とから構成され、前後方向から見た断面形状が略矩形状である。これにより、消音器４０側を支持する部材が支持ステー４６のみとなるので、上下方向及び車幅方向の剛性を確保する必要がある。そのため、断面矩形状の支持ステー４６を用いることで、該支持ステー４６の加工を容易にしつつ、剛性を確保することが可能となる。 In this case, the support stay 46 is composed of an outer member 48 and an inner member 50 that can be divided in the vehicle width direction, and has a substantially rectangular cross-sectional shape when viewed from the front-rear direction. As a result, the support stay 46 is the only member that supports the silencer 40 side, so it is necessary to secure rigidity in the vertical direction and the vehicle width direction. Therefore, by using the support stay 46 having a rectangular cross section, it is possible to secure the rigidity while facilitating the processing of the support stay 46.

また、消音器４０は、前後方向前方の前壁６０及び上下方向上方の上壁６２を備え、支持ステー４６は、前壁６０及び上壁６２から延びている。これにより、消音器４０の前後方向への回転を容易に規制することができる。 Further, the silencer 40 includes a front wall 60 in the front-rear direction and an upper wall 62 in the vertical direction, and the support stay 46 extends from the front wall 60 and the upper wall 62. Thereby, the rotation of the silencer 40 in the front-rear direction can be easily regulated.

さらに、消音器４０は、車幅方向内側の内壁６４及び前壁６０を備え、支持ステー４６は、内壁６４及び前壁６０から延びている。これにより、消音器４０の車幅方向への回転を容易に規制することができる。 Further, the silencer 40 includes an inner wall 64 and a front wall 60 on the inner side in the vehicle width direction, and the support stay 46 extends from the inner wall 64 and the front wall 60. Thereby, the rotation of the silencer 40 in the vehicle width direction can be easily regulated.

さらにまた、消音器４０は、上壁６２及び内壁６４を備え、支持ステー４６は、上壁６２及び内壁６４から延びている。この場合も、消音器４０の車幅方向への回転を容易に規制することができる。 Furthermore, the silencer 40 includes an upper wall 62 and an inner wall 64, and the support stay 46 extends from the upper wall 62 and the inner wall 64. In this case as well, the rotation of the silencer 40 in the vehicle width direction can be easily regulated.

また、外側部材４８、内側部材５０及び回り止めステー６６の少なくとも一部は、互いに重なり、溶接留めされている。これにより、支持ステー４６及び回り止めステー６６の連結に関わる加工が一層容易になる。 Further, at least a part of the outer member 48, the inner member 50 and the detent stay 66 overlap each other and are welded together. As a result, processing related to the connection of the support stay 46 and the detent stay 66 becomes easier.

以上、本発明について好適な実施形態を用いて説明したが、本発明の技術的範囲は、上記の実施形態の記載範囲に限定されることはない。上記の実施形態に、多様な変更又は改良を加えることが可能であることは、当業者に明らかである。そのような変更又は改良を加えた形態も、本発明の技術的範囲に含まれ得ることが、特許請求の範囲の記載から明らかである。また、特許請求の範囲に記載された括弧書きの符号は、本発明の理解の容易化のために添付図面中の符号に倣って付したものであり、本発明がその符号をつけた要素に限定されて解釈されるものではない。 Although the present invention has been described above using preferred embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments. It will be apparent to those skilled in the art that various changes or improvements can be made to the above embodiments. It is clear from the description of the claims that such modified or improved forms may also be included in the technical scope of the present invention. Further, the reference numerals in parentheses described in the claims are attached following the reference numerals in the accompanying drawings for the purpose of facilitating the understanding of the present invention, and the elements to which the present invention has the reference numerals are attached. It is not limited and interpreted.

１０…自動二輪車（鞍乗型車両） １４…車体フレーム
３４…内燃機関 ４０…消音器
４６…支持ステー ６６…回り止めステー 10 ... Motorcycle (saddle-mounted vehicle) 14 ... Body frame 34 ... Internal combustion engine 40 ... Muffler 46 ... Support stay 66 ... Anti-rotation stay

Claims (6)

車体フレーム（１４）に支持される内燃機関（３４）からの排気を消音する消音器（４０）を備える鞍乗型車両（１０）において、
前記消音器（４０）を前記内燃機関（３４）に取り付けるための支持ステー（４６）と、
前記支持ステー（４６）の前記内燃機関（３４）側から延び、前記内燃機関（３４）又は前記車体フレーム（１４）に取り付けられることで、前記消音器（４０）の回転を規制する回り止めステー（６６）と、
をさらに備え、
前記回り止めステー（６６）の前記支持ステー（４６）側は、前記内燃機関（３４）に取り付けられておらず、
前記回り止めステー（６６）の前記支持ステー（４６）側と、前記支持ステー（４６）の前記回り止めステー（６６）側とは、面接触した状態で重なり合い、重なり合った部分が溶接留めされている、鞍乗型車両（１０）。 In a saddle-mounted vehicle (10) provided with a silencer (40) that silences exhaust gas from an internal combustion engine (34) supported by a vehicle body frame (14).
A support stay (46) for attaching the silencer (40) to the internal combustion engine (34), and
A detent stay that extends from the internal combustion engine (34) side of the support stay (46) and is attached to the internal combustion engine (34) or the vehicle body frame (14) to regulate the rotation of the silencer (40). (66) and
Further comprising a,
The support stay (46) side of the detent stay (66) is not attached to the internal combustion engine (34).
The support stay (46) side of the detent stay (66) and the detent stay (66) side of the support stay (46) overlap each other in a surface contact state, and the overlapped portions are welded together. A saddle-mounted vehicle (10). 請求項１記載の鞍乗型車両（１０）において、
前記支持ステー（４６）は、前記鞍乗型車両（１０）の車幅方向に分割可能な外側部材（４８）と内側部材（５０）とから構成され、前記鞍乗型車両（１０）の前後方向から見た断面形状が矩形状である、鞍乗型車両（１０）。 In the saddle-mounted vehicle (10) according to claim 1.
The support stay (46) is composed of an outer member (48) and an inner member (50) that can be divided in the vehicle width direction of the saddle-mounted vehicle (10), and is front and rear of the saddle-mounted vehicle (10). A saddle-mounted vehicle (10) having a rectangular cross-sectional shape when viewed from the direction. 請求項１又は２記載の鞍乗型車両（１０）において、
前記消音器（４０）は、前記鞍乗型車両（１０）の車幅方向内側の内壁（６４）、前記鞍乗型車両（１０）の前後方向前方の前壁（６０）、及び、前記鞍乗型車両（１０）の上下方向上方の上壁（６２）を備え、
前記支持ステー（４６）は、前記内壁（６４）、前記前壁（６０）及び前記上壁（６２）のうち、少なくとも２つの壁から延びている、鞍乗型車両（１０）。 In the saddle-mounted vehicle (10) according to claim 1 or 2.
The silencer (40) includes an inner wall (64) inside the saddle-mounted vehicle (10) in the vehicle width direction, a front wall (60) in the front-rear direction of the saddle-mounted vehicle (10), and the saddle. It is equipped with an upper wall (62) above the riding vehicle (10) in the vertical direction.
The support stay (46) is a saddle-type vehicle (10) extending from at least two of the inner wall (64), the front wall (60), and the upper wall (62). 請求項１〜３のいずれか１項に記載の鞍乗型車両（１０）において、
前記支持ステー（４６）は、前記鞍乗型車両（１０）の車幅方向に分割可能な外側部材（４８）と内側部材（５０）とから構成され、
前記外側部材（４８）及び前記内側部材（５０）は、互いに重なり、溶接留めされている、鞍乗型車両（１０）。 In the saddle-mounted vehicle (10) according to any one of claims 1 to 3.
The support stay (46) is composed of an outer member (48) and an inner member (50) that can be divided in the vehicle width direction of the saddle-mounted vehicle (10).
A saddle-mounted vehicle (10) in which the outer member (48) and the inner member (50 ) are overlapped with each other and welded together. 請求項１〜４のいずれか１項に記載の鞍乗型車両（１０）において、In the saddle-mounted vehicle (10) according to any one of claims 1 to 4.
前記回り止めステー（６６）は、前記支持ステー（４６）側が前記車幅方向に折り曲げて形成される板状部材であり、The detent stay (66) is a plate-shaped member formed by bending the support stay (46) side in the vehicle width direction.
前記回り止めステー（６６）の折り曲げ部分は、前記支持ステー（４６）と重なり合った溶接留めの部分である、鞍乗型車両（１０）。The bent portion of the detent stay (66) is a saddle-mounted vehicle (10) which is a portion of a welded fastener that overlaps with the support stay (46). 請求項５記載の鞍乗型車両（１０）において、In the saddle-mounted vehicle (10) according to claim 5.
前記折り曲げ部分は、前記回り止めステー（６６）の前記内燃機関（３４）又は前記車体フレーム（１４）との取り付け部分まで延びている、鞍乗型車両（１０）。A saddle-type vehicle (10) in which the bent portion extends to a mounting portion of the detent stay (66) with the internal combustion engine (34) or the vehicle body frame (14).
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JP2604656B2 (en) * 1991-10-07 1997-04-30 本田技研工業株式会社 Exhaust device mounting structure for motorcycle
JP3623844B2 (en) * 1996-03-25 2005-02-23 本田技研工業株式会社 Muffler mounting structure
JP4400823B2 (en) * 2004-06-01 2010-01-20 本田技研工業株式会社 Muffler device for motorcycles
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US8430198B2 (en) * 2010-12-20 2013-04-30 Kawasaki Jukogyo Kabushiki Kaisha Muffler mounting structure of vehicle and straddle-type four-wheeled vehicle provided with the same
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