JPH0118805Y2 - - Google Patents
Info
- Publication number
- JPH0118805Y2 JPH0118805Y2 JP5960182U JP5960182U JPH0118805Y2 JP H0118805 Y2 JPH0118805 Y2 JP H0118805Y2 JP 5960182 U JP5960182 U JP 5960182U JP 5960182 U JP5960182 U JP 5960182U JP H0118805 Y2 JPH0118805 Y2 JP H0118805Y2
- Authority
- JP
- Japan
- Prior art keywords
- heat shield
- shield plate
- exhaust pipe
- plate
- mounting structure
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Exhaust Silencers (AREA)
Description
【考案の詳細な説明】
本考案は、自動車用エンジンの排気管用遮熱板
の取付構造の改良に関する。[Detailed Description of the Invention] The present invention relates to an improvement in the mounting structure of a heat shield plate for an exhaust pipe of an automobile engine.
自動車用排気管の下側（路面側）には、遮熱板
が装着されており、これによつて枯草等の排気管
への直接接触を防ぎ、火災事故の発生を防止して
いる。遮熱板の排気管への摺動取付部は、従来は
例えば実公昭55−48097号公報に記載されている
如く、第１図乃至第３図に示すように取付けられ
ている。それらの図で０１は遮熱板、０２は遮熱
板取付用ブラケツト、０３は押さえばね、０４，
０５は取付用ボルト、ナツトをそれぞれ示す。 A heat shield plate is attached to the lower side (road surface side) of an automobile exhaust pipe, and this prevents direct contact of dry grass and the like with the exhaust pipe, thereby preventing the occurrence of a fire accident. The sliding attachment portion of the heat shield plate to the exhaust pipe has conventionally been attached as shown in FIGS. 1 to 3, as described in, for example, Japanese Utility Model Publication No. 55-48097. In those figures, 01 is the heat shield plate, 02 is the heat shield mounting bracket, 03 is the presser spring, 04,
05 indicates mounting bolts and nuts, respectively.
上記従来の遮熱板の摺動部の取付構造では、部
品として高価な押さえばね０３を使用しているた
め、材料費が高価となる。また遮熱板取付用ブラ
ケツト０２のフランジ部０２ａが、押さえばねに
対する裏金の役目をしているため、幅広となる。
なおまた、遮熱板０１に設けられた取付孔０１ａ
は、押さえばね０３の幅より大きくする必要があ
り、遮熱板０１の最大幅を設定する際、押さえば
ね０３の幅により制限されるため、必然的に広く
なる。このため、遮熱板０１全体の材料幅は、該
取付部の幅により制限されるため、コスト高とな
るなどの欠点があつた。なお、遮熱板０１の他端
部は、固着手段により排気管０２に固着されてい
る。 In the conventional mounting structure for the sliding portion of the heat shield plate described above, the expensive presser spring 03 is used as a component, resulting in high material costs. In addition, the flange portion 02a of the heat shield plate mounting bracket 02 serves as a backing metal for the presser spring, so it is wide.
Furthermore, the mounting hole 01a provided in the heat shield plate 01
needs to be larger than the width of the presser spring 03, and when setting the maximum width of the heat shield plate 01, it is limited by the width of the presser spring 03, so it inevitably becomes wider. For this reason, the material width of the entire heat shield plate 01 is limited by the width of the attachment portion, resulting in disadvantages such as increased cost. Note that the other end of the heat shield plate 01 is fixed to the exhaust pipe 02 by a fixing means.
本考案は、上記従来の取付構造の欠点を解消す
ることを目的として提案されたもので、遮熱板の
一端部適所を固着手段により排気管に固着し、他
端適所を排気管に対し、その軸方向に摺動可能に
取付けてなる排気管用遮熱板の取付構造におい
て、該遮熱板の排気管との摺動取付部から適宜間
隔を距てた遮熱板の中央部に、排気管に直接接触
する所定高さの遮熱板凸部を設けたことを特徴と
する排気管用遮熱板の取付構造に係るものであ
る。 The present invention was proposed with the aim of solving the above-mentioned drawbacks of the conventional mounting structure.One end of the heat shield plate is fixed to the exhaust pipe using a fixing means, and the other end is fixed to the exhaust pipe at a suitable position. In the mounting structure of a heat shield plate for an exhaust pipe that is slidably mounted in the axial direction, an exhaust pipe is installed at the center of the heat shield plate at an appropriate distance from the sliding attachment part of the heat shield plate to the exhaust pipe. This invention relates to a mounting structure for a heat shield plate for an exhaust pipe, characterized in that a heat shield plate convex portion of a predetermined height is provided in direct contact with the pipe.
以下、第４図乃至第１０図に示す実施例によ
り、本考案につき具体的に説明する。 The present invention will be explained in detail below with reference to embodiments shown in FIGS. 4 to 10.
第４図乃至第６図において、１は遮熱板で、同
遮熱板１の一端部は第５図は示すように、排気管
２に遮熱板取付ブラケツト３、締付ボルト７等を
介して固定されている。この場合、第５図に示す
ように、排気管２の中心点０1と、遮熱板１の基
準点０2とは一致している。また、該遮熱板１の
他端部は、排気管２と遮熱板１との熱膨張差を吸
収し得るように、排気管２に対し、その軸方向に
摺動自在に取付けられている。５は該摺動取付部
より、固定取付部側へ任意にずらせた位置の中央
部に突設された排気管２に直接接触する所定高さ
の凸部で、同凸部５の高さは、排気管２の中心点
０1より、遮熱板基準点０2が距離ｂだけずれるの
に必要な高さとする。４は遮熱板１のスライド取
付部用遮熱板取付ブラケツト８のフランジ部に取
付けられたウエルドナツト、６は第９図に示す如
くつば出し部１０を有する押え板、１１は締付ボ
ルトで、該スライド取付部における遮熱板１の取
付前の状態は、第９図に示す如く排気管２の中心
点０1と、遮熱板１の基準点０2とは、距離b′だけ
ずれた状態となるようになつている。（実際は、
b′≒ｂと考えてよい。）この距離b′のずれを、押
え板６及び締付ボルト１１により、遮熱板１の弾
性変形を利用し、第１０図に示すように、寸法ａ
だけ締付けて、排気管２の中心点０1と、遮熱板
１の基準点０2とのずれを小さくする。この場合、
遮熱板取付用ブラケツト８と押え板６のすき間
は、遮熱板１の厚さより大きくとり、遮熱板１と
取付用ブラケツト８及び押え板６とは、遮熱板１
の長手方向に、熱膨張で生じるずれを防げないよ
うにするため締付ボルト１１の遮熱板１の貫通孔
９は第７図に示すように長手方向に長く形成され
ている。なお、押え板６には締付ボルト１１の締
付量を規制し、遮熱板の取付後に常に第１０図に
示す寸法ａが得られるようにつば出し部１０が設
けられている。 4 to 6, 1 is a heat shield plate, and one end of the heat shield 1 is connected to the exhaust pipe 2 with a heat shield mounting bracket 3, tightening bolts 7, etc. as shown in FIG. Fixed through. In this case, as shown in FIG. 5, the center point 0 1 of the exhaust pipe 2 and the reference point 0 2 of the heat shield plate 1 coincide. The other end of the heat shield plate 1 is slidably attached to the exhaust pipe 2 in its axial direction so as to absorb the difference in thermal expansion between the exhaust pipe 2 and the heat shield plate 1. There is. Reference numeral 5 denotes a convex portion of a predetermined height that directly contacts the exhaust pipe 2 and protrudes from the center at a position arbitrarily shifted toward the fixed attachment portion from the sliding attachment portion, and the height of the convex portion 5 is , is the height necessary for the heat shield reference point 0 2 to be shifted by a distance b from the center point 0 1 of the exhaust pipe 2. 4 is a weld nut attached to the flange portion of the heat shield mounting bracket 8 for the slide mounting portion of the heat shield plate 1; 6 is a holding plate having a flange portion 10 as shown in FIG. 9; and 11 is a tightening bolt. , before the heat shield plate 1 is attached to the slide attachment part, as shown in FIG. 9, the center point 01 of the exhaust pipe 2 and the reference point 02 of the heat shield plate 1 are offset by a distance b' It is becoming more and more like this. (Actually,
It can be considered that b′≒b. ) By using the elastic deformation of the heat shield plate 1 with the holding plate 6 and the tightening bolts 11, the deviation of this distance b' is adjusted to the dimension a, as shown in FIG.
2 to reduce the deviation between the center point 0 1 of the exhaust pipe 2 and the reference point 0 2 of the heat shield plate 1. in this case,
The gap between the heat shield plate mounting bracket 8 and the holding plate 6 is larger than the thickness of the heat shield plate 1, and the distance between the heat shield plate 1, the mounting bracket 8, and the holding plate 6 is larger than the thickness of the heat shield plate 1.
In order to prevent displacement caused by thermal expansion in the longitudinal direction, the through holes 9 of the heat shield plate 1 of the tightening bolts 11 are formed to be long in the longitudinal direction as shown in FIG. Note that a flange portion 10 is provided on the holding plate 6 so as to regulate the amount of tightening of the tightening bolt 11 and to always obtain the dimension a shown in FIG. 10 after the heat shield plate is attached.
本考案の遮熱板１の排気管への取付構造の一実
施例は、上記のように構成されており、遮熱板１
の排気管２へのスライド取付部の近傍の適宜の個
所における遮熱板１の中央部に、排気管２に直接
接触する凸部５を設け、該凸部５を排気管２に接
触させ、押え板６及び締付ボルト１１により遮熱
板取付用ブラケツト８のフランジ部８ａを遮熱板
１のフランジ部１ａに圧着させて、遮熱板１の弾
性変形を利用して遮熱板１を排気管２に対し、そ
の軸方向に摺動可能に取付けてあるため、従来の
取付構造のように、高価な押さえばねを用いる要
がない。また、押さえばねを用いないため、排気
管２側の遮熱板取付用ブラケツトは、押さえばね
の裏金の機能をもつ要がないため、その幅をせま
くできる。また、遮熱板１の最大幅設定の際の制
約が、押え板６のつば出し部１０の寸度となるた
め、従来の取付構造に比し、その幅をせまくする
ことができ、材料費が安価となる。 An embodiment of the structure for attaching the heat shield plate 1 to the exhaust pipe of the present invention is configured as described above, and the heat shield plate 1
A convex portion 5 that directly contacts the exhaust pipe 2 is provided in the center of the heat shield plate 1 at an appropriate location near the sliding attachment portion to the exhaust pipe 2, and the convex portion 5 is brought into contact with the exhaust pipe 2. The flange part 8a of the heat shield plate mounting bracket 8 is pressed onto the flange part 1a of the heat shield plate 1 using the holding plate 6 and the tightening bolts 11, and the heat shield plate 1 is fixed using the elastic deformation of the heat shield plate 1. Since it is attached to the exhaust pipe 2 so as to be slidable in its axial direction, there is no need to use an expensive presser spring as in conventional mounting structures. Further, since no presser spring is used, the heat shield plate mounting bracket on the exhaust pipe 2 side does not need to function as a back metal for the presser spring, so its width can be narrowed. In addition, since the constraint when setting the maximum width of the heat shield plate 1 is the size of the flange part 10 of the presser plate 6, the width can be narrowed compared to the conventional mounting structure, and the material cost is reduced. becomes cheaper.
次に第１１図には、遮熱板１に凸部５を形成す
るかわりに、別部品から成るスペーサとしての遮
熱板凸部１２を取付けた例を示す。 Next, FIG. 11 shows an example in which instead of forming the protrusions 5 on the heat shield plate 1, heat shield plate protrusions 12 are attached as spacers made of separate parts.
また第１２図には、遮熱板１の長手方向におい
て、凸部５′を貫通孔９に関して凸部５と対称的
な位置又はその近傍にも形成した変形例を示して
いる。 Further, FIG. 12 shows a modification in which the convex portion 5' is also formed in the longitudinal direction of the heat shield plate 1 at a position symmetrical to the convex portion 5 with respect to the through hole 9 or in the vicinity thereof.
同変形例によれば、貫通孔９と、その両側に位
置すると共に取付け時に排気管２に当接する両凸
部５，５′との間の遮熱板１における部分でばね
力を発生するため、凸部が１つの場合よりも大き
なばね力の設定が可能となるという効果を奏す
る。 According to the modification, a spring force is generated in the portion of the heat shield plate 1 between the through hole 9 and the convex portions 5, 5' located on both sides thereof and in contact with the exhaust pipe 2 during installation. , it is possible to set a larger spring force than when there is only one convex portion.
一方、ばね力の大きさは、貫通孔と凸部との間
の距離が小さくなればなる程貫通孔の部分におけ
るボルトの締め付け量（本実施例の場合、凸部の
高さ、及び、押え板６の厚みの製造誤差によつて
変化する。）に応じて変化し易くなるが、上記の
ように大きなばね力の設定が可能となることから
貫通孔と凸部との間の距離を小さくする必要がな
く、従つて、ボルトの締め付け量が多小変化して
もばね力の変化は少なく、ばね力の調整が容易と
なるという効果を奏する。 On the other hand, the magnitude of the spring force is determined by the amount of tightening of the bolt at the through-hole (in the case of this example, the height of the projection and the (The thickness of the plate 6 changes due to manufacturing errors.) However, since it is possible to set a large spring force as described above, the distance between the through hole and the convex part can be reduced. Therefore, even if the amount of tightening of the bolt changes, there is little change in the spring force, and the effect is that the spring force can be easily adjusted.
本考案の排気管の遮熱板の取付構造は、上記の
ような構成、作用を具有するものであるから、本
考案によれば、上記従来の取付構造の欠点をすべ
て解消し、コストの安い遮熱板の取付構造を実現
できるという実用的効果を挙げることができる。 The mounting structure of the exhaust pipe heat shield plate of the present invention has the above-mentioned configuration and function, so according to the present invention, all the drawbacks of the above-mentioned conventional mounting structure are eliminated, and the cost is low. A practical effect can be obtained in that a mounting structure for a heat shield plate can be realized.
第１図乃至第３図は、従来の取付構造のスライ
ド取付部の略示的説明図で、第１図は平面図、第
２図は第１図の−線断面図、第３図は第２図
の−線断面図、第４図乃至第１０図は、本考
案の一実施例の概略説明図で、第４図は縦断面
図、第５図は第４図の−線断面図、第６図は
側面図、第７図は第４図のＡ部拡大図、第８図は
第７図の−線断面図、第９図は遮熱板の取付
前における第７図の−線断面図、第１０図は
遮熱板の取付後の第７図の−線断面図、第１
１図は本考案の他の実施例における第８図と同様
な図面、第１２図は本考案の更に他の実施例にお
ける第４図と同様な図面である。
１：遮熱板、１ａ：フランジ、２：排気管、
３，８：遮熱板取付用ブラケツト、４：ウエルド
ナツト、５，１２：遮熱板凸部、６：押さえ板、
７，１１：締付ボルト、９：長孔、１０：つば出
し部。
1 to 3 are schematic explanatory diagrams of the slide mounting part of the conventional mounting structure, in which FIG. 1 is a plan view, FIG. 2 is a cross-sectional view taken along the - line in FIG. 2, FIGS. 4 to 10 are schematic illustrations of an embodiment of the present invention, FIG. 4 is a longitudinal sectional view, and FIG. 5 is a sectional view taken along the line - in FIG. Figure 6 is a side view, Figure 7 is an enlarged view of part A in Figure 4, Figure 8 is a sectional view taken along the line - - in Figure 7, and Figure 9 is a - line in Figure 7 before installing the heat shield plate. A cross-sectional view, Figure 10 is a cross-sectional view taken along the - line in Figure 7 after the heat shield plate has been installed.
1 is a drawing similar to FIG. 8 in another embodiment of the present invention, and FIG. 12 is a drawing similar to FIG. 4 in yet another embodiment of the present invention. 1: heat shield plate, 1a: flange, 2: exhaust pipe,
3, 8: Heat shield mounting bracket, 4: Weld nut, 5, 12: Heat shield convex portion, 6: Holding plate,
7, 11: Tightening bolt, 9: Long hole, 10: Flange part.
Claims (1)
固着し、他端適所を排気管に対し、その軸方向に
摺動可能に取付けてなる排気管用遮熱板の取付構
造において、該遮熱板の排気管との摺動取付部か
ら適宜間隔を距てた遮熱板の中央部に、排気管に
直接接触する所定高さの遮熱板凸部を設けたこと
を特徴とする排気管用遮熱板の取付構造。 In the mounting structure of a heat shield plate for an exhaust pipe, in which one end of the heat shield plate is fixed to the exhaust pipe by a fixing means, and the other end of the heat shield plate is attached to the exhaust pipe at a proper position so as to be slidable in the axial direction of the exhaust pipe. For an exhaust pipe, characterized in that a heat shield convex portion of a predetermined height that directly contacts the exhaust pipe is provided in the center of the heat shield plate at an appropriate distance from the sliding attachment part of the plate with the exhaust pipe. Mounting structure of heat shield plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5960182U JPS58162228U (en) | 1982-04-26 | 1982-04-26 | Installation structure of exhaust pipe heat shield plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5960182U JPS58162228U (en) | 1982-04-26 | 1982-04-26 | Installation structure of exhaust pipe heat shield plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58162228U JPS58162228U (en) | 1983-10-28 |
| JPH0118805Y2 true JPH0118805Y2 (en) | 1989-06-01 |
Family
ID=30069899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5960182U Granted JPS58162228U (en) | 1982-04-26 | 1982-04-26 | Installation structure of exhaust pipe heat shield plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58162228U (en) |
-
1982
- 1982-04-26 JP JP5960182U patent/JPS58162228U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58162228U (en) | 1983-10-28 |
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