JP2005048668A

JP2005048668A - Vehicular muffler cutter

Info

Publication number: JP2005048668A
Application number: JP2003281846A
Authority: JP
Inventors: Atsutomo Satou; 淳智佐藤; Gotaro Tatsumi; 剛太郎辰巳
Original assignee: Car Mate Manufacturing Co Ltd
Current assignee: Car Mate Manufacturing Co Ltd
Priority date: 2003-07-29
Filing date: 2003-07-29
Publication date: 2005-02-24

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular muffler cutter with a muffler cutter body and an exhaust muffler mounting portion formed separate from each other, requiring the increased strength of the mounting portion only for reducing the weight of the body while giving less burden to an exhaust muffler. <P>SOLUTION: The muffler cutter comprises a belt member to be fastened to the outer periphery of the vehicular exhaust muffler, the muffler cutter body, and a joint means for the belt member. The belt member consists of a belt body, a plurality of preset-pitch grooves provided in one end portion of the belt body, a cylinder portion into which one end portion of the belt body is inserted, provided at the other end of the belt body, and screws rotatably supported by the cylinder portion and threaded to the grooves. The inner diameter of the belt member is changed by turning the screws. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は車両のマフラーカッター、特に車両の排気用マフラーの端部に装着する筒状のマフラーカッターに関するものである。 The present invention relates to a muffler cutter for a vehicle, and more particularly to a cylindrical muffler cutter to be attached to an end of an exhaust muffler for a vehicle.

図６及び図７は従来の車両のマフラーカッターを示し、１は車両（図示せず）の排気用マフラー、２は上記排気用マフラー１の端部外周に装着した筒状のマフラーカッター本体、３は上記マフラーカッター本体２の外周面に互いに等間隔離間して設けた３個のネジ孔、４は上記マフラーカッター本体２を上記排気用マフラー１に固定するため上記ネジ孔３に螺合したネジ、５は上記ネジ４の頭部と上記マフラーカッター本体２の外周面間において上記ネジ４に螺合したダブルナットである。 6 and 7 show a conventional muffler cutter of a vehicle, 1 is an exhaust muffler of a vehicle (not shown), 2 is a cylindrical muffler cutter body mounted on the outer periphery of the exhaust muffler 1, and 3 Are three screw holes provided on the outer peripheral surface of the muffler cutter body 2 at equal intervals, and 4 is a screw screwed into the screw hole 3 to fix the muffler cutter body 2 to the exhaust muffler 1. Reference numeral 5 denotes a double nut screwed to the screw 4 between the head of the screw 4 and the outer peripheral surface of the muffler cutter body 2.

このような従来の車両のマフラーカッターとしては特許文献１がある。 There exists patent document 1 as such a muffler cutter of the conventional vehicle.

意匠登録第１０６９７７４号（正面図、左側面図）Design registration No. 1069774 (front view, left side view)

然しながら、従来のマフラーカッター本体にはマフラーに対する取付部分が一体に設けられていたため、取り付けのためマフラーカッター本体にはある程度の強度が必要で、そのために厚くすればマフラーカッター本体の重量がかさみ、コストがアップしてしまうという欠点があった。 However, the conventional muffler cutter body has a muffler mounting part that is integrated with the muffler, so the muffler cutter body needs a certain amount of strength for installation. However, there was a drawback that it was up.

また、マフラーカッターの重さにより車両の排気用マフラーに負担がかかっていた。 In addition, the exhaust muffler of the vehicle is burdened by the weight of the muffler cutter.

また、マフラーカッター本体に取付部分があったため、本体が長くなってしまい、自動車のマフラー形状によっては、取付けができない場合があった。 Moreover, since the muffler cutter main body has an attachment portion, the main body becomes long, and attachment may not be possible depending on the muffler shape of the automobile.

また、固定の際、３個所のネジに均等に力が加わるよう調整するのが難しかった。 In addition, it was difficult to adjust the force so that the force is evenly applied to the three screws at the time of fixing.

本発明は上記のような欠点を除くようにしたものである。 The present invention eliminates the above-mentioned drawbacks.

本発明の車両のマフラーカッターは、車両の排気用マフラーの外周に締め付けるベルト部材と、マフラーカッター本体と、上記マフラーカッター本体と上記ベルト部材の結合手段とよりなることを特徴とする。 The muffler cutter for a vehicle according to the present invention is characterized by comprising a belt member fastened to the outer periphery of the exhaust muffler of the vehicle, a muffler cutter body, and a coupling means for the muffler cutter body and the belt member.

上記結合手段は、上記ベルト部材の内周面に対接する外面と、上記ベルト部材の移動係止手段とを有する、上記マフラーカッター本体に固定された板部材であることを特徴とする。 The coupling means is a plate member fixed to the muffler cutter body, having an outer surface in contact with an inner peripheral surface of the belt member and a movement locking means for the belt member.

また、上記ベルト部材の移動係止手段は、上記板部材の外面に設けた凸部と、上記ベルト部材挿入用の隙間を有する抜け止め部材とよりなることを特徴とする。 Further, the movement locking means of the belt member includes a convex portion provided on the outer surface of the plate member and a retaining member having a gap for inserting the belt member.

また、上記板部材は、上記排気用マフラーの外周の少なくとも２点に対接される排気用マフラー固定部を有することを特徴とする。 In addition, the plate member has an exhaust muffler fixing portion that contacts at least two points on the outer periphery of the exhaust muffler.

また、上記排気用マフラー固定部は、中間凹部を有することを特徴とする。 Further, the exhaust muffler fixing part has an intermediate recess.

また、上記ベルト部材は、ベルト本体と、上記ベルト本体の一端部分に設けた所定ピッチの複数の溝と、上記ベルト本体の他端に設けた、上記ベルト本体の一端部分が挿入される筒部と、上記筒部によって回転自在に支持された、上記溝に螺合されるネジとよりなり、上記ネジを回動せしめることにより、上記ベルト部材の内径が変化されることを特徴とする。 The belt member includes a belt main body, a plurality of grooves having a predetermined pitch provided in one end portion of the belt main body, and a cylindrical portion provided in the other end of the belt main body into which one end portion of the belt main body is inserted. And a screw that is rotatably supported by the cylindrical portion and is screwed into the groove, and the inner diameter of the belt member is changed by rotating the screw.

また、上記マフラーカッター本体の外周面に設けたネジ孔と、上記ネジ孔に螺合され、その先端が上記排気用マフラーの外周面に対接されるネジとを有することを特徴とする。 Further, the present invention has a screw hole provided on the outer peripheral surface of the muffler cutter body, and a screw screwed into the screw hole and having a tip thereof being in contact with the outer peripheral surface of the exhaust muffler.

本発明の車両のマフラーカッターによれば、マフラーカッター本体と排気用マフラー取付部とを別体化したので、取付部のみの強度アップですみ、本体の軽量化ができ、排気用マフラーの負担を少なくすることができる。また、マフラーカッター本体の薄型化ができ、コストを下げることができる。また、マフラーカッター本体の長さを短縮でき、車両の排気用マフラーの形状に左右されることがなく、排気用マフラーに対する適合性を高めることができる。 According to the muffler cutter of the vehicle of the present invention, since the muffler cutter main body and the exhaust muffler mounting portion are separated, only the strength of the mounting portion can be increased, the weight of the main body can be reduced, and the exhaust muffler burden is reduced. Can be reduced. In addition, the muffler cutter body can be thinned and the cost can be reduced. Further, the length of the muffler cutter body can be shortened, and the compatibility with the exhaust muffler can be enhanced without being influenced by the shape of the exhaust muffler of the vehicle.

また、マフラーカッター本体をマフラーにベルト部材で固定するようにすれば、従来のように３つのネジの調整を不要とすることができ、簡単に取りつけることができるという大きな利益がある。 Further, if the muffler cutter body is fixed to the muffler with a belt member, it is unnecessary to adjust the three screws as in the conventional case, and there is a great advantage that it can be easily attached.

以下図面によって本発明の実施例を説明する。 Embodiments of the present invention will be described below with reference to the drawings.

本発明の車両のマフラーカッターは、図１及び図２に示すように、マフラーカッター本体２と、排気用マフラー１の端部外周に巻き付け締め付け固定する、内径を調整可能としたベルト部材６と、上記マフラーカッター本体２に設けた上記ベルト部材６の結合手段７とよりなる。 As shown in FIGS. 1 and 2, the muffler cutter of the vehicle of the present invention includes a muffler cutter main body 2, a belt member 6 that is wound around and fixed to the outer periphery of the exhaust muffler 1 and has an adjustable inner diameter, It comprises a coupling means 7 for the belt member 6 provided in the muffler cutter body 2.

上記ベルト部材６は図３に示すように、ベルト本体８と、上記ベルト本体８の少なくとも一端部分９に所定のピッチで互いに離間して形成した溝１０と、上記ベルト本体８の他端に設けた、上記ベルト本体８の一端部分９が挿入される筒部１１と、上記筒部１１によって回転自在に支持された、上記溝１０と同一ピッチのネジ山を有し、上記溝１０に螺合するネジ１２とよりなり、上記筒部１１内で上記ネジ１２を回動せしめることにより、上記ネジ１２のネジ山が上記ベルト本体８の溝１０に噛合し上記ベルト部材６がリング状となり上記ベルト本体８の内径を変化せしめることができる。 As shown in FIG. 3, the belt member 6 is provided at the other end of the belt body 8, the groove 10 formed at a predetermined pitch in the at least one end portion 9 of the belt body 8, and the groove 10. In addition, a cylindrical portion 11 into which one end portion 9 of the belt body 8 is inserted, and a screw thread having the same pitch as the groove 10, which is rotatably supported by the cylindrical portion 11, are screwed into the groove 10. When the screw 12 is rotated in the cylindrical portion 11, the thread of the screw 12 meshes with the groove 10 of the belt body 8, and the belt member 6 becomes ring-shaped. The inner diameter of the main body 8 can be changed.

上記結合手段７は図４に示すように、上記マフラーカッター本体２の内側面に固定した、その一部が上記マフラーカッター２の端部から外方に突出した、板部材１３と、上記板部材１３の上記突出部外面に設けた、上記板部材１３の外面に対接した上記ベルト部材６の軸方向の移動を係止せしめるための移動係止手段１４と、上記板部材１３の内面両側から夫々内方に直角に折り曲げて形成した、軸方向に伸びる排気用マフラー固定部１５とにより構成し、上記係止手段１４は上記板部材１３の上記突出部外面に突出して設けた凸部１６と、断面Ｌ字状で上記ベルト部材挿入用の隙間を形成したベルト部材６の抜け止め部材１７とにより構成する。 As shown in FIG. 4, the coupling means 7 is fixed to the inner surface of the muffler cutter body 2, a part of which projects outwardly from the end of the muffler cutter 2, and the plate member 13 is provided on the outer surface of the projecting portion 13 to move the belt member 6 in contact with the outer surface of the plate member 13 in the axial direction, and from both sides of the inner surface of the plate member 13. The exhaust muffler fixing portion 15 extending in the axial direction is formed by bending at right angles to the inside, and the locking means 14 is provided with a convex portion 16 protruding from the outer surface of the protruding portion of the plate member 13. And a retaining member 17 for the belt member 6 having an L-shaped cross section and forming a gap for inserting the belt member.

なお、上記板部材１３の各排気用マフラー固定部１５の軸方向の略中間部には、上記固定部１５が２点で上記排気用マフラー１に対接されるよう凹部１８を設けるのが好ましい。 In addition, it is preferable to provide a recess 18 at a substantially intermediate portion in the axial direction of each exhaust muffler fixing portion 15 of the plate member 13 so that the fixing portion 15 comes into contact with the exhaust muffler 1 at two points. .

本発明の車両のマフラーカッターは上記のような構成であるから、上記ベルト部材６のネジ１２を回動せしめて上記ベルト部材６の内径を排気用マフラー１の外径より十分大きくし、上記ベルト部材６を上記結合手段７の係止手段１４に係合せしめて上記ベルト部材６を上記マフラーカッター本体２に取り付けた後、上記ベルト部材６を排気用マフラー１に挿入し、上記ベルト部材６のネジ１２を上記ベルト部材６の内径が狭まる方向に回動せしめれば、マフラーカッターを上記排気用マフラーに固定することができるようになる。 Since the muffler cutter of the vehicle of the present invention is configured as described above, the screw 12 of the belt member 6 is rotated to make the inner diameter of the belt member 6 sufficiently larger than the outer diameter of the exhaust muffler 1, and the belt After the member 6 is engaged with the locking means 14 of the coupling means 7 and the belt member 6 is attached to the muffler cutter body 2, the belt member 6 is inserted into the exhaust muffler 1, and the belt member 6 is screwed. The muffler cutter can be fixed to the exhaust muffler by rotating 12 in the direction in which the inner diameter of the belt member 6 is reduced.

なお、図５に示すように、上記板部材１３に対向する位置で上記マフラーカッター本体２にネジ孔３を設け、このネジ孔３にネジ４を螺合せしめ、このネジ４の先端を上記排気用マフラー１の外周面に対接せしめるようにすれば排気用マフラー１とマフラーカッター２の結合を一層完全ならしめることができる。 As shown in FIG. 5, a screw hole 3 is provided in the muffler cutter main body 2 at a position facing the plate member 13, a screw 4 is screwed into the screw hole 3, and the tip of the screw 4 is connected to the exhaust port. If the exhaust muffler 1 is brought into contact with the outer peripheral surface of the exhaust muffler 1, the exhaust muffler 1 and the muffler cutter 2 can be more completely combined.

本発明の車両のマフラーカッターの正面図である。It is a front view of the muffler cutter of the vehicle of the present invention. 本発明の車両のマフラーカッターの縦断側面図である。It is a vertical side view of the muffler cutter of the vehicle of the present invention. 本発明の車両のマフラーカッターのベルト部材の斜視図である。It is a perspective view of the belt member of the muffler cutter of the vehicle of the present invention. 本発明の車両のマフラーカッターの斜視図である。It is a perspective view of the muffler cutter of the vehicle of the present invention. 本発明の車両のマフラーカッターの他の実施例の斜視図である。It is a perspective view of the other Example of the muffler cutter of the vehicle of this invention. 本発明の車両のマフラーカッターの他の実施例の正面図である。It is a front view of the other Example of the muffler cutter of the vehicle of this invention. 従来の車両のマフラーカッターの側面図である。It is a side view of the muffler cutter of the conventional vehicle.

符号の説明Explanation of symbols

１車両の排気用マフラー
２マフラーカッター本体
３ネジ孔
４ネジ
５ダブルナット
６ベルト部材
７結合手段
８ベルト本体
９一端部分
１０溝
１１筒部
１２ネジ
１３板部材
１４移動係止手段
１５排気用マフラー固定部
１６凸部
１７抜け止め部材
１８凹部 DESCRIPTION OF SYMBOLS 1 Vehicle exhaust muffler 2 Muffler cutter body 3 Screw hole 4 Screw 5 Double nut 6 Belt member 7 Coupling means 8 Belt body 9 One end portion 10 Groove 11 Tube portion 12 Screw 13 Plate member 14 Movement locking means 15 Exhaust muffler fixing Part 16 convex part 17 retaining member 18 concave part

Claims

車両の排気用マフラーの外周に締め付けるベルト部材と、マフラーカッター本体と、上記マフラーカッター本体と上記ベルト部材の結合手段とよりなることを特徴とする車両のマフラーカッター。 A muffler cutter for a vehicle comprising: a belt member fastened to an outer periphery of an exhaust muffler of the vehicle; a muffler cutter main body; and a connecting means for connecting the muffler cutter main body and the belt member.

上記結合手段が、上記ベルト部材の内周面に対接する外面と、上記ベルト部材の移動係止手段とを有する、上記マフラーカッター本体に固定された板部材であることを特徴とする請求項１記載の車両のマフラーカッター。 2. The plate member fixed to the muffler cutter main body, wherein the coupling means has an outer surface in contact with an inner peripheral surface of the belt member and a movement locking means for the belt member. The muffler cutter for the vehicle described.

上記ベルト部材の移動係止手段が、上記板部材の外面に設けた凸部と、上記ベルト部材挿入用の隙間を有する抜け止め部材とよりなることを特徴とする請求項２記載の車両のマフラーカッター。 3. The vehicle muffler according to claim 2, wherein said belt member movement locking means comprises a convex portion provided on an outer surface of said plate member and a retaining member having a gap for inserting said belt member. cutter.

上記板部材が、上記排気用マフラーの外周の少なくとも２点に対接される排気用マフラー固定部を有することを特徴とする請求項１、２または３記載の車両のマフラーカッター。 4. The muffler cutter for a vehicle according to claim 1, wherein the plate member has an exhaust muffler fixing portion that comes into contact with at least two points on the outer periphery of the exhaust muffler.

上記排気用マフラー固定部が中間凹部を有することを特徴とする請求項４記載の車両のマフラーカッター。 The muffler cutter for a vehicle according to claim 4, wherein the exhaust muffler fixing part has an intermediate recess.

上記ベルト部材が、ベルト本体と、上記ベルト本体の一端部分に設けた所定ピッチの複数の溝と、上記ベルト本体の他端に設けた、上記ベルト本体の一端部分が挿入される筒部と、上記筒部によって回転自在に支持された、上記溝に螺合されるネジとよりなり、上記ネジを回動せしめることにより、上記ベルト部材の内径が変化されることを特徴とする請求項１、２、３、４または５記載の車両のマフラーカッター。 The belt member includes a belt main body, a plurality of grooves having a predetermined pitch provided in one end portion of the belt main body, a cylindrical portion provided in the other end of the belt main body into which the one end portion of the belt main body is inserted; 2. The belt member is rotatably supported by the cylindrical portion and is screwed into the groove, and the inner diameter of the belt member is changed by rotating the screw. A muffler cutter for a vehicle according to 2, 3, 4 or 5.

上記マフラーカッター本体の外周面に設けたネジ孔と、上記ネジ孔に螺合され、その先端が上記排気用マフラーの外周面に対接されるネジとを有することを特徴とする請求項１、２、３、４、５または６記載の車両のマフラーカッター。 The screw hole provided in the outer peripheral surface of the muffler cutter main body, and the screw screwed into the screw hole, the tip of which is in contact with the outer peripheral surface of the exhaust muffler, A muffler cutter for a vehicle according to 2, 3, 4, 5 or 6.