JP5001979B2 - Bumper integrated exhaust finisher - Google Patents

Bumper integrated exhaust finisher Download PDF

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JP5001979B2
JP5001979B2 JP2009130018A JP2009130018A JP5001979B2 JP 5001979 B2 JP5001979 B2 JP 5001979B2 JP 2009130018 A JP2009130018 A JP 2009130018A JP 2009130018 A JP2009130018 A JP 2009130018A JP 5001979 B2 JP5001979 B2 JP 5001979B2
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bumper
silencer
integrated exhaust
exhaust finisher
hole
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JP2010274810A (en
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大輔 桐生
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Honda Motor Co Ltd
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Description

本発明は、内部に消音器のテールパイプが配置されるバンパ一体型排気フィニッシャに関する。   The present invention relates to a bumper integrated exhaust finisher in which a tail pipe of a silencer is disposed.

消音器のテールパイプの先端に排気フィニッシャ（マフラカッタ）を設けて、意匠性を向上させることが、従来から行われている。そして、排気フィニッシャをバンパに一体感を持たせて取り付けて、更に、意匠性を向上させたバンパ一体型排気フィニッシャが知られている（例えば、特許文献１参照）。   Conventionally, an exhaust finisher (muffler cutter) is provided at the tip of the tail pipe of the silencer to improve the design. A bumper-integrated exhaust finisher is known in which an exhaust finisher is attached to a bumper with a sense of unity and the design is further improved (see, for example, Patent Document 1).

特開２００８−１４３１９９号公報JP 2008-143199 A

一方、車両の燃費の一層の向上が図られる状況下で、車両各部における空気抵抗の低減が求められている。そして、消音器の側部を通過した走行風が、消音器の後方で乱れることにより、空気抵抗が増加していることがわかった。   On the other hand, reduction of air resistance in each part of the vehicle is demanded in a situation where further improvement in fuel consumption of the vehicle is achieved. And it turned out that the air resistance is increasing because the running wind which passed the side part of the silencer is disturbed behind the silencer.

そこで、本発明は、高い意匠性を維持しつつ、消音器の後方での走行風の乱れを抑制して、空気抵抗の低減が可能なバンパ一体型排気フィニッシャを提供することを目的とする。   Therefore, an object of the present invention is to provide a bumper-integrated exhaust finisher that can reduce the air resistance by suppressing the disturbance of the traveling wind behind the silencer while maintaining high designability.

本発明は、バンパに取り付けられ、内部に消音器のテールパイプが配置される貫通孔を有するバンパ一体型排気フィニッシャであって、
前記消音器の後方を流れる走行風を整流する整流部を、前記貫通孔の下側に設け、
前記整流部は、前記貫通孔を構成する筒部の側部から前後方向に連続して下方へ突出する突出部を有することを特徴としている。 The present invention is a bumper integrated exhaust finisher having a through hole attached to a bumper and having a silencer tail pipe disposed therein,
A rectifying unit that rectifies running air flowing behind the silencer is provided below the through hole ,
The rectifying portion has a protruding portion that protrudes downward continuously in the front-rear direction from the side portion of the cylindrical portion constituting the through hole .

これによれば、整流部が消音器の後方を流れる走行風を整流するので、その走行風の乱れを抑制することができる。そして、整流部は、内部に消音器のテールパイプが配置される貫通孔の下側に設けられるので、バンパより高い視点から人々に眺められる通常の場合において、整流部は、貫通孔に大部分を隠され、バンパ一体型排気フィニッシャの高い意匠性を維持することができる。   According to this, since the rectification unit rectifies the traveling wind flowing behind the silencer, the turbulence of the traveling wind can be suppressed. And since the rectification part is provided below the through hole in which the tail pipe of the silencer is disposed, in the normal case where people can see from a viewpoint higher than the bumper, the rectification part is mostly in the through hole. The high design of the bumper integrated exhaust finisher can be maintained.

また、本発明では、前記整流部は、前記貫通孔を構成する筒部の側部から前後方向に連続して下方へ突出する突出部を有し、消音器の後方を流れる走行風は、前後方向に連続して突出する突出部に沿って流れるので、走行風の乱れを抑制することができる。
また、本発明では、前記突出部はバンパ一体型排気フィニッシャの左右方向の中央に設けられ、前記消音器は前記突出部の前方に配置されていることが好ましい。 In the present invention, the rectifying section, wherein the side of the cylindrical portion constituting a through-hole continuous in the longitudinal direction have a protrusion protruding downward, the running wind flowing behind the muffler, back and forth Since it flows along the protrusion part which protrudes continuously in the direction, turbulence of the traveling wind can be suppressed.
In the present invention, it is preferable that the protrusion is provided at the center in the left-right direction of the bumper-integrated exhaust finisher, and the silencer is disposed in front of the protrusion.

本発明によれば、高い意匠性を維持しつつ、消音器の後方での走行風の乱れを抑制して、空気抵抗の低減が可能なバンパ一体型排気フィニッシャを提供できる。   According to the present invention, it is possible to provide a bumper-integrated exhaust finisher that can reduce the air resistance by suppressing the disturbance of the traveling wind behind the silencer while maintaining high designability.

本発明の実施形態に係るバンパ一体型排気フィニッシャを装着した車両の斜視図である。1 is a perspective view of a vehicle equipped with a bumper-integrated exhaust finisher according to an embodiment of the present invention. 図１のバンパ一体型排気フィニッシャの拡大斜視図である。FIG. 2 is an enlarged perspective view of the bumper-integrated exhaust finisher of FIG. 1. 本発明の実施形態に係るバンパ一体型排気フィニッシャを装着した車両の左側後部の一部分を下方から眺めた斜視図である。It is the perspective view which looked at a part of the left rear part of the vehicle which equipped with the bumper integrated exhaust finisher concerning the embodiment of the present invention from the lower part.

次に、本発明の実施形態について、適宜図面を参照しながら詳細に説明する。なお、各図において、共通する部分には同一の符号を付し重複した説明を省略する。   Next, embodiments of the present invention will be described in detail with reference to the drawings as appropriate. In each figure, common portions are denoted by the same reference numerals, and redundant description is omitted.

図１に示すように、車両３の後方に設けられているバンパ２に、バンパ一体型排気フィニッシャ１が取り付けられている。図１では、バンパ２の左右両側にそれぞれ、バンパ一体型排気フィニッシャ１が取り付けられているが、これに限らず、消音器１２及びテールパイプ９に対応させて、どちらか一方のみに取り付けてもよい。バンパ一体型排気フィニッシャ１は、バンパ２に埋め込んで一体化されている。これにより、バンパ２とバンパ一体型排気フィニッシャ１とに一体感を持たせて、意匠性を向上させている。   As shown in FIG. 1, a bumper integrated exhaust finisher 1 is attached to a bumper 2 provided behind the vehicle 3. In FIG. 1, the bumper-integrated exhaust finisher 1 is attached to each of the left and right sides of the bumper 2. However, the present invention is not limited to this, and the bumper 2 may be attached to only one of the silencer 12 and the tail pipe 9. Good. The bumper integrated exhaust finisher 1 is embedded and integrated in the bumper 2. As a result, the bumper 2 and the bumper-integrated exhaust finisher 1 have a sense of unity, and the design is improved.

バンパ一体型排気フィニッシャ１は、筒部５と整流部６とを有している。図１では、２つの筒部５が並列に設けられ、筒部５それぞれを貫通する貫通孔４が形成されている。筒部５の内部、すなわち、貫通孔４の内部に、消音器１２のテールパイプ９の一端を挿入し配置している。これを車両３の外から見ると、テールパイプ９の側面が、バンパ一体型排気フィニッシャ１に隠れて、車両３の後部がすっきりとし、意匠性を向上させることができる。なお、筒部５は、バンパ一体型排気フィニッシャ１毎に、２つである必要は無く、消音器１２のテールパイプ９の本数に応じて、１つであってもよい。   The bumper-integrated exhaust finisher 1 includes a cylindrical portion 5 and a rectifying portion 6. In FIG. 1, two cylindrical portions 5 are provided in parallel, and a through hole 4 penetrating each cylindrical portion 5 is formed. One end of the tail pipe 9 of the silencer 12 is inserted and arranged inside the cylindrical portion 5, that is, inside the through hole 4. When this is viewed from the outside of the vehicle 3, the side surface of the tail pipe 9 is hidden behind the bumper-integrated exhaust finisher 1, and the rear portion of the vehicle 3 is clean, so that the design can be improved. Note that the number of the cylindrical portions 5 is not necessarily two for each bumper-integrated exhaust finisher 1, and may be one according to the number of the tail pipes 9 of the silencer 12.

整流部６は、筒部５の下に、すなわち、貫通孔４の下側に設けられている。整流部６は、貫通孔４を構成する筒部５の側部から、車両３の前後方向に連続して、下方へ突出する突出部７を有している。図１では、バンパ一体型排気フィニッシャ１毎に、３枚の突出部７を有し、対向する突出部７で挟まれた空間に溝８が形成される。溝８は、下に開口した凹形状をしている。溝８の上部は、筒部５の側部で構成されている。溝８の上部の高さは、バンパ２の下端の高さより高くなっている。なお、バンパ一体型排気フィニッシャ１の左右両端に配置されている突出部７は、省くことができ、この場合、バンパ一体型排気フィニッシャ１の左右両端が接するバンパ２の側壁が、突出部７として機能することになる。また、突出部７は、図１では、バンパ一体型排気フィニッシャ１の左右両端以外に、その中央に１枚配置されているが、これに限らず、複数枚配置してもよい。   The rectifying unit 6 is provided below the cylindrical unit 5, that is, below the through hole 4. The rectifying unit 6 has a protruding portion 7 that protrudes downward from the side portion of the cylindrical portion 5 constituting the through hole 4 continuously in the front-rear direction of the vehicle 3. In FIG. 1, each bumper-integrated exhaust finisher 1 has three protrusions 7, and a groove 8 is formed in a space sandwiched between the opposite protrusions 7. The groove 8 has a concave shape opened downward. The upper part of the groove 8 is constituted by the side part of the cylindrical part 5. The height of the upper part of the groove 8 is higher than the height of the lower end of the bumper 2. The protrusions 7 arranged at the left and right ends of the bumper-integrated exhaust finisher 1 can be omitted. In this case, the side walls of the bumper 2 that are in contact with the left and right ends of the bumper-integrated exhaust finisher 1 serve as the protrusions 7. Will work. Further, in FIG. 1, one protrusion 7 is disposed at the center of the bumper-integrated exhaust finisher 1 other than the left and right ends, but the present invention is not limited to this, and a plurality of protrusions 7 may be disposed.

そして、車両３の走行時には、図２に示すように、貫通孔４からは排ガス１１が後方に排出され、溝８からは走行風１０が層流となって後方に流れ出る。   When the vehicle 3 travels, as shown in FIG. 2, the exhaust gas 11 is exhausted backward from the through hole 4, and the traveling wind 10 flows backward from the groove 8 as a laminar flow.

図３に、車両３の左側後部の一部分を下方から眺めた斜視図を示す。消音器１２の周辺、特に、側方を流れる走行風１０は、消音器１２の後方を流れるときにも、渦等を発生させることなく、層流のまま、バンパ一体型排気フィニッシャ１の整流部６（溝８）に流れ込んでいる。走行風１０は、前後方向に連続して突出する突出部７に沿ってスムースに流れる。このため、流動抵抗が小さく、迅速に走行風１０を通過させることができるので、その前段である消音器１２の後方において走行風１０が滞留して渦等の乱れを発生させることがない。すなわち、消音器１２の後方での走行風１０の乱れを抑制し整流させることができ、ひいては、車両３走行時の空気抵抗を低減することができる。このため、燃費の改善にも貢献する。   FIG. 3 is a perspective view of a part of the left rear portion of the vehicle 3 as viewed from below. Even when the running wind 10 flowing around the silencer 12, particularly the side, flows behind the silencer 12, the rectification unit of the bumper-integrated exhaust finisher 1 remains laminar without causing vortices or the like. 6 (groove 8). The traveling wind 10 flows smoothly along the protruding portion 7 that continuously protrudes in the front-rear direction. For this reason, since the flow resistance 10 is small and the traveling wind 10 can be passed quickly, the traveling wind 10 does not stay behind the silencer 12 that is the preceding stage, and turbulence such as vortex is not generated. That is, the turbulence of the traveling wind 10 behind the silencer 12 can be suppressed and rectified, and as a result, the air resistance during traveling of the vehicle 3 can be reduced. This contributes to improved fuel economy.

なお、突出部７と消音器１２の間隔を狭めるように、突出部７、特に、バンパ一体型排気フィニッシャ１の中央に配置された突出部７を、消音器１２の方向に伸ばしてもよい。これによれば、消音器１２の左右両側を流れる走行風１０の右側と左側とを分離して流すことができ、左右両側の走行風１０が互いに混ざることを抑制するので、空気抵抗の上昇を抑えることができる。そして、消音器１２の方向に伸ばされる突出部７の延長分は、突出部７の本体から分離し、消音器１２や、テールパイプ９に支持させてもよい。   In addition, you may extend the protrusion part 7, especially the protrusion part 7 arrange | positioned in the center of the bumper integrated exhaust finisher 1 in the direction of the silencer 12 so that the space | interval of the protrusion part 7 and the silencer 12 may be narrowed. According to this, the right side and the left side of the traveling wind 10 flowing on both the left and right sides of the silencer 12 can be separated and flow is suppressed, so that the mixing of the traveling winds 10 on the left and right sides is suppressed. Can be suppressed. And the extension part of the protrusion part 7 extended in the direction of the silencer 12 may be separated from the main body of the protrusion part 7 and supported by the silencer 12 or the tail pipe 9.

また、前記溝８の上部となる前記筒部５の側部が、突出部７と同様に、消音器１２の方向に伸びていてもよい。これによれば、消音器１２の下側を流れる走行風１０を、テールパイプ９の接続されている端面側に巻き込むことを抑制するので、空気抵抗の上昇を抑えることができる。そして、消音器１２の方向に伸ばされる前記溝８の上部となる前記筒部５の側部の延長分は、その本体から分離し、消音器１２や、テールパイプ９に支持させてもよい。   Further, the side portion of the cylindrical portion 5 that is the upper portion of the groove 8 may extend in the direction of the silencer 12, similarly to the protruding portion 7. According to this, since the traveling wind 10 flowing under the silencer 12 is restrained from being wound on the end face side to which the tail pipe 9 is connected, an increase in air resistance can be suppressed. And the extension of the side part of the said cylinder part 5 used as the upper part of the said groove | channel 8 extended in the direction of the silencer 12 may isolate | separate from the main body, and may be supported by the silencer 12 or the tail pipe 9. FIG.

なお、本発明に係る実施形態は、消音器１２を備えた車両３に適用できるのは明らかであり、消音器１２を備えていれば、エンジンを搭載した車両３に限らず、燃料電池車であってもよい。燃料電池車では、燃料電池の排気系に消音器が設けられ、この消音器に対して本発明に係る実施形態を適用することができる。   It is obvious that the embodiment according to the present invention can be applied to the vehicle 3 provided with the silencer 12. If the silencer 12 is provided, the embodiment is not limited to the vehicle 3 equipped with the engine, but is a fuel cell vehicle. There may be. In the fuel cell vehicle, a silencer is provided in the exhaust system of the fuel cell, and the embodiment according to the present invention can be applied to the silencer.

１ バンパ一体型排気フィニッシャ
２ バンパ
４ 貫通孔
５ 筒部
６ 整流部
７ 突出部
９ 消音器のテールパイプ
１０ 走行風
１２ 消音器 DESCRIPTION OF SYMBOLS 1 Bumper integrated exhaust finisher 2 Bumper 4 Through-hole 5 Tube part 6 Rectification part 7 Protrusion part 9 Silencer tail pipe 10 Running wind 12 Silencer

Claims (2)

バンパに取り付けられ、内部に消音器のテールパイプが配置される貫通孔を有するバンパ一体型排気フィニッシャであって、
前記消音器の後方を流れる走行風を整流する整流部を、前記貫通孔の下側に設け、
前記整流部は、前記貫通孔を構成する筒部の側部から前後方向に連続して下方へ突出する突出部を有することを特徴とするバンパ一体型排気フィニッシャ。 A bumper-integrated exhaust finisher having a through hole attached to the bumper and having a silencer tail pipe disposed therein,
A rectifying unit that rectifies running air flowing behind the silencer is provided below the through hole ,
The bumper-integrated exhaust finisher characterized in that the rectifying portion has a protruding portion that protrudes downward continuously in the front-rear direction from a side portion of the cylindrical portion constituting the through hole . 前記突出部はバンパ一体型排気フィニッシャの左右方向の中央に設けられ、
前記消音器は前記突出部の前方に配置されていることを特徴とする請求項１のバンパ一体型排気フィニッシャ。 The protrusion is provided at the center in the left-right direction of the bumper-integrated exhaust finisher,
The bumper-integrated exhaust finisher according to claim 1, wherein the silencer is disposed in front of the protrusion .
JP2009130018A 2009-05-29 2009-05-29 Bumper integrated exhaust finisher Expired - Fee Related JP5001979B2 (en)

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