JP2547587Y2 - Insulation device for muffler of small engine - Google Patents

Insulation device for muffler of small engine

Info

Publication number
JP2547587Y2
JP2547587Y2 JP5775493U JP5775493U JP2547587Y2 JP 2547587 Y2 JP2547587 Y2 JP 2547587Y2 JP 5775493 U JP5775493 U JP 5775493U JP 5775493 U JP5775493 U JP 5775493U JP 2547587 Y2 JP2547587 Y2 JP 2547587Y2
Authority
JP
Japan
Prior art keywords
muffler
cover
heat insulating
insulating cover
engine
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 - Fee Related
Application number
JP5775493U
Other languages
Japanese (ja)
Other versions
JPH0722010U (en
Inventor
弘 広岡
Original Assignee
富士ロビン株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 富士ロビン株式会社 filed Critical 富士ロビン株式会社
Priority to JP5775493U priority Critical patent/JP2547587Y2/en
Publication of JPH0722010U publication Critical patent/JPH0722010U/en
Application granted granted Critical
Publication of JP2547587Y2 publication Critical patent/JP2547587Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Exhaust Silencers (AREA)

Description

【考案の詳細な説明】[Detailed description of the invention]

【0001】[0001]

【産業上の利用分野】本考案は、マフラの外周側に断熱
カバーを有効に取付けた小形エンジンのマフラ用断熱装
置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating device for a muffler of a small engine in which a heat insulating cover is effectively attached to an outer peripheral side of a muffler.

【0002】[0002]

【従来の技術】従来は、シリンダに連通連設するマフラ
にはカバーを被着して構成する小形エンジンにおいて、
マフラの内側方から下方にかけて断熱カバーを取付ける
ことは、実公平2−13727号公報に見られるように
知られている。
2. Description of the Related Art Conventionally, in a small engine in which a cover is attached to a muffler which is connected to and connected to a cylinder,
It is known to attach a heat insulating cover from the inside to the bottom of the muffler, as seen in Japanese Utility Model Publication No. 2-13727.

【0003】[0003]

【考案が解決しようとする課題】しかしながら、マフラ
の外側方には断熱カバーを取付けないでエンジンカバー
もしくはマフラカバーを被着するから、実際には、エン
ジンカバーなどが合成樹脂製のため、また、排ガス対応
により触媒を採用する場合に、熱で焼けたり変形するの
を防止するため、マフラとカバーの隙間を大きくしなけ
ればならず、エンジンカバーもしくはマフラカバーの外
形寸法が大きくなって、エンジン全体が大形化したり、
断熱カバーはどうしても振動したり、他に取付け手段を
要して複雑な取付け構造になってしまう、といった不具
合を呈していた。
[Problems to be Solved by the Invention] However, since the engine cover or the muffler cover is attached to the outside of the muffler without attaching the heat insulating cover, the engine cover and the like are actually made of synthetic resin. When using a catalyst for exhaust gas, the gap between the muffler and the cover must be increased to prevent burning or deformation due to heat, and the outer dimensions of the engine cover or muffler cover increase, and the entire engine Becomes larger,
The heat-insulating cover has a problem that it inevitably vibrates or requires a mounting means, which results in a complicated mounting structure.

【0004】[0004]

【課題を解決するための手段】本考案は、そのような不
具合を解決し、断熱カバーを有効に取付けうるように工
夫したものであり、そのため、シリンダに連通連設する
マフラにはカバーを被着して構成する小形エンジンにお
いて、前記マフラの少なくとも内側面、下面及び外側面
に接近する側面視略U字状の断熱カバーを、マフラの外
側面から内側面に貫通するマフラの取付けボルトにより
マフラガスケットとして共締め可能に取付け構成したも
のである。
SUMMARY OF THE INVENTION The present invention has been devised so as to solve such a problem and to effectively attach a heat insulating cover. Therefore, the muffler communicating with the cylinder is covered with the cover. In a small engine configured to be attached to the muffler, a muffler mounting bolt that penetrates at least an inner surface, a lower surface, and an outer surface of the muffler and has a substantially U-shape in a side view from the outer surface to the inner surface of the muffler. A gasket is attached and configured to be able to be fastened together.

【0005】[0005]

【作用】したがって、断熱カバーをマフラの下方から嵌
装するとともに断熱カバーをガスケットにして取付けボ
ルトにより共締めすると、断熱カバーがマフラの少なく
とも内側面、下面及び外側面に接近するようにして外周
側に対し断熱効果をもたせて有効かつ簡単に取付けるこ
とができることになり、また、エンジンカバーもしくは
マフラカバーはその断熱カバーの外側方に接近させて、
マフラの外周側が大形化しないようその外形寸法を小さ
くして有効に被着できる。
Therefore, when the heat-insulating cover is fitted from below the muffler, and the heat-insulating cover is made into a gasket and fastened together by mounting bolts, the heat-insulating cover approaches at least the inner, lower, and outer surfaces of the muffler, so that the outer peripheral side is attained. Insulation can be effectively and easily attached to the engine, and the engine cover or muffler cover can be moved closer to the outside of the heat-insulating cover.
The outer diameter of the muffler can be effectively reduced by reducing its outer dimensions so as not to increase its size.

【0006】[0006]

【実施例】図1は刈払機の機体後部に一体的に設けた小
形エンジンの一部を断面にして示した背面図であり、下
方に燃料タンク4を配備するとともに点火プラグ5やピ
ストン6を装備したシリンダ1の吸気ポート7には気化
器8を連通連設し、シリンダ1の排気ポート9の外側方
には、入口10を有する内側面、テールパイプ11、上
下方向中間に段部12を有する外側面、両ボルト孔1
3、13を有するマフラAを両ボルト3、3により固定
するとともに、マフラAの上方より外側面外方を通して
下方側に向けエンジンカバー2またはマフラカバーを被
着して従来形同様に構成する。
FIG. 1 is a rear view showing, in section, a part of a small engine integrally provided at the rear part of the body of a brush cutter, in which a fuel tank 4 is provided below and a spark plug 5 and a piston 6 are mounted. A carburetor 8 is connected to an intake port 7 of the equipped cylinder 1 so as to communicate therewith. An outer side of an exhaust port 9 of the cylinder 1 is provided with an inner surface having an inlet 10, a tail pipe 11, and a step 12 at the middle in the vertical direction. Outer surface, both bolt holes 1
The muffler A having the mufflers 3 and 13 is fixed by the two bolts 3 and the engine cover 2 or the muffler cover is attached to the lower side of the muffler A from the upper side to the outer side through the outer side.

【0007】Bは断熱カバーを示し、前記マフラAの内
側面、下方及び外側面に接近するとともに前記段部12
に係合できる段部14を外側面に有するよう図1及び図
4に示すように側面視略U字状に形設し、マフラガスケ
ットとなる断熱カバーBの内側面には前記入口10及び
両ボルト孔13、13に合致する入口部15及び両孔部
16、16を形成するとともに、外側面の段部14の上
方には前記ボルト孔13、13に合致する両孔部17、
17を形成して構成するが、前記断熱カバーBの内側面
の上部と外側面の上部とをオーバーラップするまで延設
して構成することもできる。
[0007] Reference numeral B denotes a heat insulating cover, which approaches the inner side, lower side and outer side of the muffler A, and the step 12
1 and 4, it is formed in a substantially U-shape as viewed from the side so as to have a stepped portion 14 which can be engaged with the inner surface of the heat insulating cover B serving as a muffler gasket. In addition to forming an inlet portion 15 and both holes 16, 16 corresponding to the bolt holes 13, 13, both holes 17 corresponding to the bolt holes 13, 13 are provided above the step portion 14 on the outer surface.
17 is formed, but it is also possible to extend and extend the upper part of the inner surface and the upper part of the outer surface of the heat insulating cover B until they overlap.

【0008】したがって、断熱カバーBをマフラAの下
方から嵌装するとともに断熱カバーBをガスケットにし
て、両取付けボルト3を孔部17、ボルト孔13、孔部
16に挿通するとともにシリンダ1に挿着して共締めす
ると、図1に示すように断熱カバーBがマフラAの少な
くとも内側面、下面及び外側面に接近するようにして外
周側に対し断熱効果をもたせて有効かつ簡単に取付ける
ことができることになり、また、エンジンカバー2もし
くはマフラカバーはその断熱カバーの外側方に図1に示
すように接近させて、マフラAの外周側が大形化しない
ようその外形寸法を小さくして有効に被着したり、燃料
タンク4の上部を接近させて有効に組付けることができ
る。
Therefore, the heat insulating cover B is fitted from below the muffler A, and the heat insulating cover B is used as a gasket, so that the two mounting bolts 3 are inserted through the holes 17, the bolt holes 13, and the holes 16, and are also inserted into the cylinder 1. When they are attached and fastened together, as shown in FIG. 1, the heat insulating cover B approaches at least the inner side surface, the lower surface, and the outer side surface of the muffler A so that the heat insulating effect can be effectively and easily attached to the outer peripheral side with the heat insulating effect. In addition, the engine cover 2 or the muffler cover is brought close to the outside of the heat insulating cover as shown in FIG. The fuel tank 4 can be attached effectively, or the upper part of the fuel tank 4 can be brought close to the fuel tank 4 for effective assembly.

【0009】[0009]

【考案の効果】このように本考案は、断熱カバー(B)
をマフラ(A)の下方から嵌装するとともに断熱カバー
(B)をガスケットにして取付けボルト(3)により共
締めすると、断熱カバー(B)がマフラ(A)の少なく
とも内側面、下面及び外側面に接近するようにして外周
側に対し断熱効果をもたせて有効かつ簡単に取付けるこ
とができることになり、また、断熱カバー(B)をマフ
ラのガスケットとして取付けるので、エンジンカバー
(2)もしくはマフラカバーとマフラ(A)との隙間を
小さくすることができることになってエンジンカバー
(2)もしくはマフラカバーの外形寸法を小さくするこ
とができることになり、触媒採用時にはマフラ(A)の
温度が上昇しても、マフラ(A)との隙間を小さくでき
ることになって、外形寸法が大きくなることを防止でき
ることになり、コンパクト構造にして好適に実施できる
特長を有する。
[Effect of the Invention] As described above, the present invention provides a heat insulating cover (B).
Is fitted from below the muffler (A), and the heat insulating cover (B) is made into a gasket and fastened together with the mounting bolts (3), so that the heat insulating cover (B) at least has an inner surface, a lower surface, and an outer surface of the muffler (A). The heat insulating cover (B) can be effectively and easily attached to the outer peripheral side by approaching to the outer peripheral side, and the heat insulating cover (B) is attached as a muffler gasket. The clearance between the muffler (A) and the muffler (A) can be reduced, so that the outer dimensions of the engine cover (2) or the muffler cover can be reduced. And the gap with the muffler (A) can be reduced, so that the outer dimensions can be prevented from increasing. It has the advantage that can be suitably carried out in the bets structure.

【図面の簡単な説明】[Brief description of the drawings]

【図1】刈払機のエンジン部を一部断面にして示した背
面図である。
FIG. 1 is a rear view showing an engine part of a brush cutter in a partially sectional view.

【図2】図1の一部の右側面を示した側面図である。FIG. 2 is a side view showing a right side of a part of FIG. 1;

【図3】図1の一部の左側面を示した側面図である。FIG. 3 is a side view showing a left side surface of a part of FIG. 1;

【図4】図1の一部を分解して示した側面図である。FIG. 4 is an exploded side view showing a part of FIG. 1;

【図5】図2の一部を分解して示した側面図である。FIG. 5 is an exploded side view showing a part of FIG. 2;

【図6】図3の一部を分解して示した側面図である。FIG. 6 is an exploded side view showing a part of FIG. 3;

【符号の説明】[Explanation of symbols]

1 シリンダ A マフラ 2 カバー B 断熱カバー 3 取付けボルト 1 Cylinder A Muffler 2 Cover B Insulation cover 3 Mounting bolt

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 昭59−111912(JP,U) 実開 平1−95526(JP,U) 実開 昭57−59922(JP,U) 実開 平4−119322(JP,U) 実開 昭59−28621(JP,U) 実開 平2−50032(JP,U) 実開 昭62−176445(JP,U) 実開 平5−7924(JP,U) 実開 平2−147821(JP,U) 実公 平2−13727(JP,Y2) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 59-111912 (JP, U) JP 1-95526 (JP, U) JP-A 57-59922 (JP, U) JP 4- 119322 (JP, U) Japanese Utility Model Showa 59-28621 (JP, U) Japanese Utility Model 2-50,32 (JP, U) Japanese Utility Model Utility Model 62-176445 (JP, U) Japanese Utility Model Utility Model 5-7924 (JP, U) Hikaru Hei 2-147821 (JP, U) Hiko Hei 2-13727 (JP, Y2)

Claims (1)

(57)【実用新案登録請求の範囲】(57) [Scope of request for utility model registration] 【請求項1】 シリンダ(1)に連通連設するマフラ
(A)にはカバー(2)を被着して構成する小形エンジ
ンにおいて、前記マフラ(A)の少なくとも内側面、下
面及び外側面に接近する側面視略U字状の断熱カバー
(B)を、マフラ(A)の外側面から内側面に貫通する
マフラ(A)の取付けボルト(3)によりマフラガスケ
ットとして共締め可能に取付け構成したことを特徴とす
るマフラ用断熱装置。
1. A small engine in which a cover (2) is attached to a muffler (A) communicating with and connected to a cylinder (1), wherein at least an inner surface, a lower surface, and an outer surface of the muffler (A) are provided. An approaching U-shaped heat-insulating cover (B) that is approaching in a side view is mounted so as to be jointly fastened as a muffler gasket by a mounting bolt (3) of the muffler (A) penetrating from the outer surface to the inner surface of the muffler (A). A heat insulation device for a muffler.
JP5775493U 1993-09-22 1993-09-22 Insulation device for muffler of small engine Expired - Fee Related JP2547587Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5775493U JP2547587Y2 (en) 1993-09-22 1993-09-22 Insulation device for muffler of small engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5775493U JP2547587Y2 (en) 1993-09-22 1993-09-22 Insulation device for muffler of small engine

Publications (2)

Publication Number Publication Date
JPH0722010U JPH0722010U (en) 1995-04-21
JP2547587Y2 true JP2547587Y2 (en) 1997-09-10

Family

ID=13064674

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5775493U Expired - Fee Related JP2547587Y2 (en) 1993-09-22 1993-09-22 Insulation device for muffler of small engine

Country Status (1)

Country Link
JP (1) JP2547587Y2 (en)

Also Published As

Publication number Publication date
JPH0722010U (en) 1995-04-21

Similar Documents

Publication Publication Date Title
JP2547587Y2 (en) Insulation device for muffler of small engine
JPS5828584A (en) Intake device of internal combustion engine for vehicle
JPH0240292Y2 (en)
JP3189306B2 (en) Engine cylinder head
JP2516513Y2 (en) Internal combustion engine intake system
JPH0744737Y2 (en) Engine cover mounting structure for various engines
JPH0533704Y2 (en)
JPS6014918Y2 (en) Installation structure of automobile intake air preheating device
JPH0442508Y2 (en)
JPS6143969Y2 (en)
JPH0732898Y2 (en) Engine exhaust pipe mounting structure
JP2817009B2 (en) Cylinder head cover for internal combustion engine
JPS6321729Y2 (en)
JPH0314410Y2 (en)
JP2749163B2 (en) Exhaust system for 4-cycle engine
JPH01166243U (en)
JPH0752333Y2 (en) Reed valve attachment device for 2-cycle engine
JPH058372Y2 (en)
JPH088285Y2 (en) Engine cylinder head structure
JPS5856370Y2 (en) Intake system for horizontal two-cylinder overhead valve engine
JPH01173440U (en)
JPH0218605U (en)
JPS62165436U (en)
JPS6045227U (en) Exhaust port structure of front and rear V-type engines in motorcycles
JPH0445941U (en)

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees