JP5424831B2 - Exhaust member heat shield mounting structure - Google Patents
Exhaust member heat shield mounting structure Download PDFInfo
- Publication number
- JP5424831B2 JP5424831B2 JP2009264548A JP2009264548A JP5424831B2 JP 5424831 B2 JP5424831 B2 JP 5424831B2 JP 2009264548 A JP2009264548 A JP 2009264548A JP 2009264548 A JP2009264548 A JP 2009264548A JP 5424831 B2 JP5424831 B2 JP 5424831B2
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- JP
- Japan
- Prior art keywords
- heat shield
- shield plate
- welding
- exhaust member
- heat
- 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.)
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- 238000003466 welding Methods 0.000 claims description 38
- 238000002485 combustion reaction Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000003584 silencer Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
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- Exhaust Silencers (AREA)
Description
本発明は、排気部材への取付け作業を容易にした遮熱板構造に関するものである。 The present invention relates to a heat shield structure that facilitates attachment to an exhaust member.
従来、車両の内燃機関の排気管等の排気部材は内燃機関で燃焼した高温の排気ガスが通
過するため加熱されて高温となる。従って、内燃機関から車両床下を通り車両後部に至る
排気部材の周囲に配置される他の車両用部材等へ、輻射熱の影響を無くすため遮熱板が取
り付けられている。一般に遮熱板は金属製薄板からなり、排気部材に溶接等により取り付
けられている。
Conventionally, exhaust members such as an exhaust pipe of an internal combustion engine of a vehicle are heated to a high temperature because high-temperature exhaust gas combusted in the internal combustion engine passes therethrough. Therefore, a heat shield is attached to other vehicle members arranged around the exhaust member from the internal combustion engine through the vehicle floor to the rear of the vehicle in order to eliminate the influence of radiant heat. Generally, the heat shield plate is made of a thin metal plate and is attached to the exhaust member by welding or the like.
排気部材の周囲に亘って遮熱するためには、複数の遮熱板を排気部材の周囲にそれぞれ
溶接等で固定していた。そのため、遮熱板毎に溶接作業を行うため作業工程が増加してし
まう問題があった。
In order to shield heat around the exhaust member, a plurality of heat shield plates are fixed around the exhaust member by welding or the like. For this reason, there is a problem that the number of work steps increases because welding work is performed for each heat shield plate.
本発明は、このような従来技術の技術的課題に鑑みてなされたもので、排気部材の周囲
を覆う複数の遮熱板を排気部材に少ない溶接工程で溶接固定することを目的とする。
The present invention has been made in view of such technical problems of the prior art, and an object thereof is to weld and fix a plurality of heat shield plates covering the periphery of the exhaust member to the exhaust member with a small number of welding processes.
複数の遮熱板を排気部材を囲んで取り付ける遮熱板の取付け構造において、少なくとも
一方の遮熱板と他方の遮熱板を前記排気部材を囲んで対向させて配置すると共に、
それぞれの遮熱板には、前記排気部材の表面に接触して溶接固定される溶接固定部を設
け、少なくとも一方の前記遮熱板に他方の前記遮熱板に向かって凸状の前記溶接固定部の
先端が他方の遮熱板に近接又は接触させて前記排気部材外周に接触するように設け、それ
ぞれの、一対となる前記溶接固定部同士を同時に前記排気部材に溶接固定するものである
。
In the heat shield plate mounting structure in which a plurality of heat shield plates are attached to surround the exhaust member, and at least one heat shield plate and the other heat shield plate are disposed so as to face each other and surround the exhaust member,
Each of the heat shield plates is provided with a weld fixing portion that is welded and fixed in contact with the surface of the exhaust member, and at least one of the heat shield plates is convexly fixed to the other heat shield plate. The tip of the part is provided so as to be in contact with or in contact with the other heat shield plate so as to come into contact with the outer periphery of the exhaust member, and a pair of the weld fixing portions as a pair are welded and fixed to the exhaust member at the same time.
本発明によれば、排気管の周囲を覆うように配置した遮熱板の一対となる溶接固定部
を一回の溶接作業で排気部材に溶接固定できるので、作業工程を少なく、溶接材料も少な
く出来るという作用効果がある。
According to the present invention, since the welding fixing portion as a pair of heat shield plates arranged so as to cover the periphery of the exhaust pipe can be welded and fixed to the exhaust member by a single welding operation, the work process is reduced and the welding material is also reduced. There is an effect that can be done.
以下、添付図面を参照しながら本発明の実施形態について説明する。
車両においては、排気部材は内燃機関から排出された排気ガスを車両の床下等に配置した
排気ガス浄化装置を通過させた後、消音器において騒音を低減させ車両の後部より大気に
放出している。
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
In a vehicle, an exhaust member passes exhaust gas exhausted from an internal combustion engine through an exhaust gas purification device disposed under the floor of the vehicle, and then reduces noise in a silencer and releases it to the atmosphere from the rear of the vehicle. .
図1は内燃機関から排出された排気ガスを排気浄化装置、消音器へ導く排気管に本発明
の遮熱板を用いた例を示す第1の実施例を示すものである。
FIG. 1 shows a first embodiment showing an example in which the heat shield plate of the present invention is used for an exhaust pipe for guiding exhaust gas discharged from an internal combustion engine to an exhaust purification device and a silencer.
排気管3の外周と間隔を有し、配管の外形形状に合わせて周囲を覆って配置された遮
熱板1−aと遮熱板2−a遮熱板が、排気管3に溶接により固定されている。
The heat shield plate 1-a and the heat shield plate 2-a, which are spaced from the outer periphery of the
5は溶接材料により形成された所謂ビードである。
遮熱板1−a、遮熱板2−aには排気管3の軸方向に間隔を有して遮熱板端部から片側
に二つの凸状の溶接固定部4−a,4−aが設けられている。
The heat shield plate 1-a and the heat shield plate 2-a are spaced apart in the axial direction of the
前記溶接固定部4−aは、図2に示すように排気管3の外周に沿った形状に曲げられて
、遮熱板の面が排気管3の外周と間隔を保つと共に、排気管3の軸方向に平行となるよう
に固定されている。
As shown in FIG. 2, the weld fixing portion 4-a is bent into a shape along the outer periphery of the
本実施例では、排気管3の直管部分に遮熱板を取付けた状態を示しているが、曲がり部
に取り付ける場合は、排気管3の曲がり形状に合わせて曲げておく必要がある。
In the present embodiment, a state in which a heat shield plate is attached to the straight pipe portion of the
また、排気浄化装置や消音器等外形形状が複雑に変化するような排気部材に取付ける場
合は、必要な面積を有する遮熱板の端部からそれぞれの遮熱板の溶接固定部の長さをそれ
ぞれ異ならせて、双方の溶接固定部が接近または接触するように設けておく。
Also, when attaching to exhaust members such as exhaust purifiers and silencers whose outer shape changes in a complicated manner, the length of the welding fixing part of each heat shield plate from the end of the heat shield plate having the required area They are different from each other, and are provided so that both of the weld fixing parts approach or come into contact with each other.
遮熱板1−aと遮熱板2−aを排気管3に溶接固定する場合、遮熱板1−a,遮熱板2
−aの溶接固定部4−a,溶接固定部4−aが対向して近接して排気管3に接触するよう
に治具により固定する。
When the heat shield plate 1-a and the heat shield plate 2-a are welded and fixed to the
-A welding fixing portion 4-a and welding fixing portion 4-a are fixed by a jig so that they face each other and come close to each other and come into contact with the
その後、図示しない溶接装置を互いに対向し近接している溶接固定部4−aと溶接固定
部4−aの先端部の形状に合わせて移動させて溶接固定する。
本実施例の場合、先端部は直線であるため直線的に連続して溶接装置を動かせば足りる
。
Thereafter, a welding device (not shown) is moved and fixed in accordance with the shapes of the welding fixing portion 4-a and the welding fixing portion 4-a facing each other and close to each other.
In the case of the present embodiment, since the tip portion is a straight line, it is sufficient to move the welding apparatus linearly continuously.
しかしながら、先端部に溶接装置の幅より若干広い間隔がある場合は、溶接装置をジグ
ザグに作動させながら連続して溶接を行うことも可能である。
However, when there is a gap slightly wider than the width of the welding device at the tip, it is possible to perform welding continuously while operating the welding device in a zigzag manner.
これにより、一回の溶接装置の動作により、対向する二つの溶接固定部4−a,4−a
が同時に排気管3に溶接固定される。本実施例の場合、遮熱板1−a,2−aのそれぞれ
には4つの溶接固定部が設けられて合計8箇所溶接すべき箇所があるが、半分の4回の溶
接装置の作業で溶接固定行うことが出来るという効果がある。
Thereby, two welding fixing parts 4-a and 4-a which oppose by operation | movement of a welding apparatus once.
Are fixed to the
溶接固定部4−aと溶接固定部4−aの先端部が互いに接触して治具により排気管3に
より仮固定されているとより確実に一度の溶接工程で両溶接固定部の固定が可能となる。
If the weld fixing portion 4-a and the tip of the welding fixing portion 4-a come into contact with each other and are temporarily fixed by the
図3は、第2の実施例を示している。この遮熱板1−b,遮熱板2−bの端部に設けら
れた凸状の溶接固定部4−b、4−bが互いに排気管3の軸方向にずれて隣接し、溶接固
定部4−b、4−bの先端部が軸方向において同一位置にある。
FIG. 3 shows a second embodiment. Convex weld fixing portions 4-b and 4-b provided at end portions of the heat shield plate 1-b and the heat shield plate 2-b are adjacent to each other in the axial direction of the
これにより、溶接装置は遮熱板1−bの溶接固定部4−bを排気管3に溶接固定した後
、そのまま進んで遮熱板2−bの溶接固定部4−bを排気管3に溶接固定することが出来
る。
Thus, the welding apparatus welds and fixes the weld fixing portion 4-b of the heat shield plate 1-b to the
この場合も、第1の実施例と同様に、8箇所の溶接固定すべき箇所を半分の4箇所で両遮
熱板1−b,2−bを排気管3に溶接固定することが出来る。
Also in this case, as in the first embodiment, the eight heat shielding plates 1-b and 2-b can be welded and fixed to the
本実施例の形状では、溶接固定部の凸部長さが長過ぎる部分が有り、凸部先端が直線状
に揃わない場合でも先端部同時が衝突してしまい先端部が重なってしまう恐れは無い。
In the shape of the present embodiment, there is a portion where the length of the convex portion of the welding fixing portion is too long, and even when the tip of the convex portion does not align linearly, there is no possibility that the tip portion will collide and the tip portion overlaps.
図4は、第3の実施例を示している。この遮熱板1−c,遮熱板2−cの端部に設けら
れた凸状の溶接固定部4−c、溶接固定部4−cの先端が互いに逆となる凹凸形状となっ
ていて、それぞれが噛み合った形になるように配置されている。
FIG. 4 shows a third embodiment. The heat shield plate 1-c, the convex weld fixing portion 4-c provided at the end of the heat shield plate 2-c, and the concave and convex shapes in which the tips of the weld fixing portions 4-c are opposite to each other. These are arranged so as to be in mesh with each other.
この形状によれば、直線状に溶接することが出来るため、溶接時間が短く出来る。 According to this shape, since welding can be performed linearly, the welding time can be shortened.
また、それぞれの遮熱板の溶接固定部4−c、溶接固定部4−cの先端部長さが長くな
るため、排気管3との溶接固定がより強固とすることが出来る。
Further, since the lengths of the weld fixing portions 4-c and the weld fixing portions 4-c of the respective heat shield plates are increased, the welding fixation with the
本実施例では、相互に対向する溶接固定部の先端部形状が凹凸が相異なるように配置さ
れているが、同一形状として第2の実施例の様に排気管の軸方向にずらして配置するよう
にしても良い。
In this embodiment, the tips of the weld fixing portions facing each other are arranged so that the concave and convex portions are different from each other. However, the same shape is arranged so as to be shifted in the axial direction of the exhaust pipe as in the second embodiment. You may do it.
図5は、第4の実施例を示すもので、互いの遮熱板1−d、遮熱板2−dの一端側に溶
接固定部4−d、溶接固定部4−dが設けられると共に、他端側には遮熱板1−d、遮熱
板2−dの一部を凹形状溝として、溝の底部を排気管に接触させて、遮熱板と排気管の間
隔を確保すると共に、溝に金属バンドを回して、ボルトを締めることにより固定している
。
FIG. 5 shows a fourth embodiment, in which a heat fixing plate 4-d and a welding fixing portion 4-d are provided on one end side of the heat shielding plate 1-d and the heat shielding plate 2-d. The other end side has a heat shield plate 1-d and a part of the heat shield plate 2-d as a concave groove, and the bottom of the groove is brought into contact with the exhaust pipe to ensure a space between the heat shield plate and the exhaust pipe. At the same time, the metal band is turned in the groove and fixed by tightening the bolt.
この構造に寄れば、バンドにより溝と排気管とが互いに摺動可能となるため、排気管と
遮熱板の温度差や材料の違いによる熱延び量の違いを吸収して応力の発生を防止すること
が出来るという効果が得られる。
With this structure, the groove and the exhaust pipe can be slid with each other by the band, so the stress difference is prevented by absorbing the difference in heat extension due to the temperature difference and material difference between the exhaust pipe and the heat shield. The effect that it can be done is obtained.
溝の変わりに、金属の網を圧縮した所謂金属メッシュを排気管3と遮熱板1−d、遮熱
板2−dの間において、バンドにより締め付け固定することも可能であり、車両や、内燃
機関の振動が伝わった場合でも音の発生を防ぐことが出来るとともに、排気管3から遮熱
板への熱の伝達もより少なくすることが出来る。さらに、すべりが良くなるため熱による
排気管3と遮熱板1−d、遮熱板1−dの伸びの差をスムースに吸収することが可能となる
。
Instead of the groove, a so-called metal mesh obtained by compressing a metal mesh can be fastened and fixed by a band between the
各実施例は、2枚の遮熱板をお互いに向き合わせた構成で説明しているが、3枚以上の
遮熱板を排気部材に溶接固定する場合にも適用できることはもちろんである。
Although each embodiment has been described with a configuration in which two heat shield plates face each other, it is of course applicable to the case where three or more heat shield plates are welded to an exhaust member.
1・・・遮熱板1−a、1−b、1−c、1−d
2・・・遮熱板2−a、2−b、2−c、2−d
3・・・排気管
4・・・溶接固定部4−a、4−b、4−c、4−d
5・・・溶接ビード
6・・・支持部
10・・・金属バンド
1 ... Heat shield plates 1-a, 1-b, 1-c, 1-d
2 ... Heat shield plates 2-a, 2-b, 2-c, 2-d
3 ...
5 ... weld bead 6 ... support
Claims (4)
一方の遮熱板と他方の遮熱板を前記排気部材を囲んで対向させて配置すると共に、 それ
ぞれの遮熱板には、前記排気部材の表面に接触して溶接固定される溶接固定部を設け、少
なくとも一方の前記遮熱板に他方の前記遮熱板に向かって凸状の前記溶接固定部の先端が
他方の遮熱板に近接又は接触させて前記排気部材外周に接触するように設け、それぞれの
一対となる前記溶接固定部同士を同時に前記排気部材に溶接固定したことを特徴とする排
気部材の遮熱板取付け構造。 In the heat shield plate mounting structure in which a plurality of heat shield plates are attached surrounding the exhaust member, at least one heat shield plate and the other heat shield plate are disposed so as to face each other and surround the exhaust member. The plate is provided with a welding fixing portion that is welded and fixed in contact with the surface of the exhaust member, and the tip of the welding fixing portion that is convex toward the other heat shielding plate is provided on at least one of the heat shielding plates. The exhaust member is shielded by being adjacent to or in contact with the other heat shield plate so as to come into contact with the outer periphery of the exhaust member, and the welding fixing portions of each pair are simultaneously welded and fixed to the exhaust member. Heat plate mounting structure.
求項1に記載の遮熱板取付け構造。 The heat shield plate mounting structure according to claim 1, wherein the convex weld fixing portion is provided on each of the plurality of heat shield plates.
囲1乃至2の遮熱板取付け構造。 3. The heat shield plate mounting structure according to claim 1 or 2, wherein the convex weld fixing portion tips are alternately adjacent to each other.
は請求項2に記載の遮熱板取付け構造。 The heat shield plate mounting structure according to claim 1, wherein the convex weld fixing portions have a concave and convex shape that meshes with each other.
Priority Applications (1)
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JP2009264548A JP5424831B2 (en) | 2009-11-20 | 2009-11-20 | Exhaust member heat shield mounting structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009264548A JP5424831B2 (en) | 2009-11-20 | 2009-11-20 | Exhaust member heat shield mounting structure |
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JP5424831B2 true JP5424831B2 (en) | 2014-02-26 |
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JPS56139818U (en) * | 1980-03-24 | 1981-10-22 | ||
JPS62145924U (en) * | 1986-03-11 | 1987-09-14 | ||
JPH08226321A (en) * | 1995-02-21 | 1996-09-03 | Calsonic Corp | Exhaust pipe with double structure |
JP2902388B1 (en) * | 1998-02-13 | 1999-06-07 | 川崎重工業株式会社 | Exhaust manifold for motorcycle |
JP2006064043A (en) * | 2004-08-26 | 2006-03-09 | Jtekt Corp | Welding holder and method for manufacturing welding holder |
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