JPS61164028A - Silencer and its manufacture - Google Patents

Silencer and its manufacture

Info

Publication number
JPS61164028A
JPS61164028A JP325885A JP325885A JPS61164028A JP S61164028 A JPS61164028 A JP S61164028A JP 325885 A JP325885 A JP 325885A JP 325885 A JP325885 A JP 325885A JP S61164028 A JPS61164028 A JP S61164028A
Authority
JP
Japan
Prior art keywords
outer cylinder
flange
protrusion
partition plate
engagement hole
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.)
Granted
Application number
JP325885A
Other languages
Japanese (ja)
Other versions
JPH0477132B2 (en
Inventor
Masanori Hori
政則 堀
Katsura Betsui
別井　桂
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SAKAMOTO KOGYO KK
Original Assignee
SAKAMOTO KOGYO KK
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 SAKAMOTO KOGYO KK filed Critical SAKAMOTO KOGYO KK
Priority to JP325885A priority Critical patent/JPS61164028A/en
Publication of JPS61164028A publication Critical patent/JPS61164028A/en
Publication of JPH0477132B2 publication Critical patent/JPH0477132B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
    • B21D39/031—Joining superposed plates by locally deforming without slitting or piercing
    • B21D39/032—Joining superposed plates by locally deforming without slitting or piercing by fitting a projecting part integral with one plate in a hole of the other plate

Abstract

PURPOSE:To eliminate the necessity for spot welding in the past and prevent a wet corrosion phenomenon, by fixing a flange of a partition panel to an outer cylinder through the engagement action between a protrusion having a swollen part and an engaging hole in the case of a silencer partitioning the inside of the outer cylinder into plural divided chambers by the partition panel. CONSTITUTION:A silencer, constituted by inserting two sheets of partition panel 2a, 2b to be fixed in an outer cylinder 1 so as to partition its inside into three divided chambers 3a-3c, provides a cylindrical flange 4, forming an engaging hole 5 engaging a protrusion 6 with a swollen part 6a provided in the outer cylinder 1 in plural places, in the peripheral edge of each partition panel 2a, 2b. While the partition panel 2a, 2b, forming in its inside a plurality of cylindrical auxiliary flanges 7, respectively inserts an inner pipe 8a-8d to be fixed. And after the above partition panel 2a, 2b, being inserted to a predetermined position in the outer cylinder 1, is fixed by engaging said protrusion 6 with the engaging hole 5, the silencer is constituted by fixing end plates 11a, 11b with a cylindrical auxiliary flange 12, 14 to both end opening parts of the outer cylinder 1.

Description

【発明の詳細な説明】 発明の目的 （産業上の利用分野） 本発明は、清音器およびその製造方法に関し、特に清音
器内の仕切板の固定構造および固定方法の改良に関する
。DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Industrial Field of Application) The present invention relates to a sound purifier and a method for manufacturing the same, and more particularly to an improvement in the fixing structure and method of fixing a partition plate in a sound purifier.

（従来の技術） 自動車エンジン等の排気音を消すための清音器では、外
筒内に仕切板を挿入固定することにより、外筒内を複数
の区画室に仕切るようになっている。(Prior Art) In a noise purifier for muffling the exhaust noise of an automobile engine, etc., a partition plate is inserted and fixed into the outer cylinder to partition the inside of the outer cylinder into a plurality of compartments.

従来、仕切板の周縁に形成されたフランジを外筒の内周
面にスポット溶接により固定するようになっていた。Conventionally, a flange formed on the peripheral edge of the partition plate was fixed to the inner circumferential surface of the outer cylinder by spot welding.

また、本出願人が特開昭５８−１５８３１３号で提案し
たように、７ランシ゛に係合孔を形成し、外筒にはこの
係合孔に対応する部位に突起を形成し、両者の係合によ
り仕切板を固定する手段も開発されている。Furthermore, as proposed by the present applicant in JP-A No. 58-158313, an engagement hole is formed in the 7 lanci, and a protrusion is formed in the outer cylinder at a portion corresponding to the engagement hole, so that the two can be engaged. Means for fixing the partition plate by fitting has also been developed.

（発明が解決しようとしている問題点）しかし、前者の
固定手段では、仕切板のフランジおよび外筒の表面に形
成されていたメッキや塗料等の皮膜がスポット溶接によ
り破壊されるため、凝縮水による湿食が生じる欠点があ
った。(Problem that the invention is trying to solve) However, with the former fixing means, the coating of plating, paint, etc. formed on the flange of the partition plate and the surface of the outer cylinder is destroyed by spot welding, so It had the disadvantage of causing moisture corrosion.

また、後者の固定手段では、アウターバーンの衝撃や熱
膨張により突起と係合孔との係合状態が解除されるおそ
れがあり、仕切板を所定位置に確実に固定できない欠点
があった。In addition, the latter fixing means has the disadvantage that the engagement between the protrusion and the engagement hole may be released due to the impact of the outer burn or thermal expansion, and the partition plate cannot be securely fixed in a predetermined position.

発明の構成 （問題点を解決するための手段） 本発明は上記問題点を解消するためになされたもので、
その要旨は、外筒の内面に仕切板を固定し、この仕切板
に上り外筒内を複数の区画室に仕切るようにした清音器
において、仕切板の周縁にフランジが形成され、このフ
ランジに係合孔が形成され、外筒には、上記フランジの
係合孔に係合するとともにこのフランジからさらに内方
向へ突出する突起が形成され、この突起には、横方向に
膨らむとともに係合孔の縁部の内面側に係合する膨出部
が形成されていることを特徴とする清音器にある。Structure of the Invention (Means for Solving the Problems) The present invention has been made to solve the above problems.
The gist is that in a purifier in which a partition plate is fixed to the inner surface of the outer cylinder and the partition plate is climbed up to partition the inside of the outer cylinder into a plurality of compartments, a flange is formed around the periphery of the partition plate. An engagement hole is formed, and the outer cylinder is formed with a protrusion that engages with the engagement hole of the flange and projects further inward from the flange. The purifier is characterized in that a bulge that engages with the inner surface of the edge is formed.

また本発明のもう１つの要旨は、外筒内を複数の区画室
に仕切るだめの仕切板を、上記外筒に固定する際、上記
仕切板の周縁のフランジに係合孔を形成しておき、この
仕切板を外筒内に挿入するとともに、上記フランジの内
側には上記係合孔に対応した部位に凹部を有する受け治
具を配置し、この状態で、内面にテーパを有するととも
に先端部外面に凸部を有する複数の分割片部を備えたポ
ンチにより、上記仕切板のフランジの係合孔に対応する
外筒の所定部位を内方向へ打ち出して、上記係合孔に係
合するとともに上記フランジよりさらに内方向に突出す
る突起を形成し、次にこのポンチ内にマンドレルを圧入
してポンチの各分割片部の先端部を広げることにより、
突起に抜け止め用の膨出部を形成することを特徴とする
清音器の製造方法にある。Another aspect of the present invention is that when a partition plate for partitioning the inside of the outer cylinder into a plurality of compartments is fixed to the outer cylinder, an engagement hole is formed in a flange on the periphery of the partition plate. , while inserting this partition plate into the outer cylinder, a receiving jig having a recess at a portion corresponding to the engagement hole is arranged inside the flange, and in this state, a receiving jig having a tapered inner surface and a tip end Using a punch provided with a plurality of divided pieces having convex portions on the outer surface, a predetermined portion of the outer cylinder corresponding to the engagement hole of the flange of the partition plate is punched inward, and the part is engaged with the engagement hole. By forming a protrusion that protrudes further inward from the flange, and then press-fitting a mandrel into this punch to widen the tip of each divided piece of the punch,
A method of manufacturing a purifier is characterized in that a protrusion is formed with a bulge for preventing the protrusion from coming off.

（実施例） 以下、本発明の清音器の一実施例を第５図、！＠６図を
参照して説明する。図中符号１は外筒な示し、外筒１内
には、２枚の仕切板２８ｔ　２　ｂが挿入固定されてお
り、この仕切板２　ａｔ　２　ｂに仕切られることによ
り、外筒１内には３つの区画室３ａ、３゜ｂ、３ｃが形
成されている。(Example) An example of the purifier of the present invention is shown in Fig. 5 below. This will be explained with reference to Figure @6. In the figure, reference numeral 1 indicates an outer cylinder, and two partition plates 28t 2 b are inserted and fixed into the outer cylinder 1, and by being partitioned by the partition plates 2 at 2 b, the inside of the outer cylinder 1 is Three compartments 3a, 3°b, and 3c are formed.

各仕切板２　ａ、　２　ｂは、本発明の要旨をなす固定
構造により、外筒１に固定されている。以下、詳述する
。上記各仕切板２ａ、２ｂの周縁には円筒状のフランジ
４が形成されており、このフランジ４が外筒１内の所定
位置に圧入されている。このフランジ４の複数箇所例え
ば４箇所には係合孔５が形成されている。一方、外筒１
には、上記係合孔５に対応する部位に、突起６が形成さ
れている。Each of the partition plates 2 a and 2 b is fixed to the outer cylinder 1 by a fixing structure that is the gist of the present invention. The details will be explained below. A cylindrical flange 4 is formed on the periphery of each of the partition plates 2a and 2b, and this flange 4 is press-fitted into a predetermined position within the outer cylinder 1. Engagement holes 5 are formed at a plurality of locations on the flange 4, for example, four locations. On the other hand, outer cylinder 1
A protrusion 6 is formed at a portion corresponding to the engagement hole 5.

この突起６がＦ記係会孔６に倶会するととれに。When this protrusion 6 meets the F-region hole 6, it becomes tori.

フランジ４よりさらに内方向に突出している。また、こ
の突起６には横方向に膨れた膨出部６ａが形成されてお
り、この膨出部６ａは係合孔５の周縁部の内面側に係合
している。It protrudes further inward than the flange 4. Further, this protrusion 6 is formed with a laterally swollen bulge 6a, and this bulge 6a engages with the inner surface of the peripheral edge of the engagement hole 5.

仕切板２　ａ、　２　ｂには、前述したフランジ４の内
側において筒状をなす複数の補助フランジ７が形成され
ており、これら補助フランジ７には、各種インナーパイ
プ８　ａｔ　８　ｂ、　８　ｃ、　８　ｄが挿入固定さ
れている。これらインナーパイプ８　ａ、　８　ｂ、　
８　ｃ、　８　ｃｌと７ラン：）７とは、これら部材に
それぞれ形成された突起による係合、または圧入等の手
段により連結されている。上記外筒１の両端開口は、端
板１１ａ、ｌｌｂにより閉塞されている。こめ端板１１
ａ、Ｉｌｂは、その周縁と外筒１の両端部周縁を一緒に
巻き込んでかしめることにより、外筒１に固定されてい
る。一方の端板１１ａに形成された筒状の補助フランジ
１２にはインナーパイプ８ａおよび流入管１３の端部が
溶接等の手段により挿入固定されている。この流入管１
３は自動車等のエンジンに連結されている。また、他方
の端板１１ｂの補助フランジ１４にはインナーパイプ８
ｄおよび流出管１５の端部が溶接等の手段で挿入固定さ
れている。A plurality of cylindrical auxiliary flanges 7 are formed on the partition plates 2 a, 2 b inside the flange 4 described above, and these auxiliary flanges 7 include various inner pipes 8 at 8 b, 8 c, 8 d is inserted and fixed. These inner pipes 8a, 8b,
8 c, 8 cl and 7 run:) 7 are connected by means such as engagement by projections formed on these members, or press-fitting. The openings at both ends of the outer cylinder 1 are closed by end plates 11a and llb. Kome end plate 11
a and Ilb are fixed to the outer cylinder 1 by rolling the peripheral edges thereof and the peripheral edges of both ends of the outer cylinder 1 together and caulking them. Ends of an inner pipe 8a and an inflow pipe 13 are inserted and fixed into a cylindrical auxiliary flange 12 formed on one end plate 11a by means such as welding. This inflow pipe 1
3 is connected to an engine of an automobile or the like. In addition, an inner pipe 8 is attached to the auxiliary flange 14 of the other end plate 11b.
d and the end of the outflow pipe 15 are inserted and fixed by means such as welding.

このような構成の清音器においては、流入管１３から流
入したエンジンの排ガスは、インナーパイプ８ａを通っ
て区画室３ｂに至り、インナーパイプ８ｃを通って区画
室３ｃに至り、インナーパイプ８ｂを通って区画室３ａ
に至り、さらにインナーパイプ８ｄを通って流出管１５
から外気に放出される。このように、排ガスが区画室３
　ａｔ　３　ｂ、　３　ｃを通過する過程で、その爆発
音が消される。In the purifier having such a configuration, the engine exhaust gas flowing in from the inflow pipe 13 passes through the inner pipe 8a to reach the compartment 3b, passes through the inner pipe 8c to reach the compartment 3c, and passes through the inner pipe 8b. Compartment room 3a
and further passes through the inner pipe 8d to the outflow pipe 15.
released into the outside air. In this way, the exhaust gas is
In the process of passing through at 3 b and 3 c, the explosion sound is muffled.

また、上記構成において、仕切板２ａのフランジ４は突
起６と係合孔５との係合作用によって外筒ｌに固定され
ており、スポット溶接されていない。このため、７ラン
７４および外筒１のメッキや塗料が破壊されることがな
く、湿食現象を防止できる。また、突起６には膨出部６
ａが形成されており、この膨出部６ａが係合孔５の周縁
部の内面側に係合しているため、エンジンの振動や衝撃
があっても、上記突起６が係合孔５から抜けることがな
く、仕切板２ａを確実に所定位置に固定できる。Further, in the above configuration, the flange 4 of the partition plate 2a is fixed to the outer cylinder l by the engagement between the projection 6 and the engagement hole 5, and is not spot welded. Therefore, the plating and paint on the 7-run 74 and the outer tube 1 are not destroyed, and moisture corrosion can be prevented. In addition, the protrusion 6 has a bulge 6.
a is formed, and this bulging portion 6a engages with the inner surface of the peripheral edge of the engagement hole 5, so even if there is engine vibration or impact, the protrusion 6 will not come out of the engagement hole 5. The partition plate 2a can be reliably fixed in a predetermined position without falling off.

以下、本発明による清音器製造方法の一実施例について
説明する。予め、仕切板２　ａ、　２　ｂのフランジ４
の例えば４箇所には、係合孔５を形成しておく。An embodiment of the method for manufacturing a purifier according to the present invention will be described below. In advance, the flanges 4 of the partition plates 2 a, 2 b
Engagement holes 5 are formed at, for example, four locations.

次に、仕切板２ａの補助フランジ７にインナーパイプ８
ａを挿入固定する。そして、この仕切板２ａを第１図に
示すように、円筒状の受け治具２０により支持する。こ
の受け治具２０の外径は上記７ラン′）４の内径と等し
く、この受け治具２０の端部をフランジ４の内周面に接
するようにして挿入する。第７図に示すように、上記骨
は治具２０の端部には、例えば４ｍ所に四部２１が形成
されており、上記フランジ４″への挿入状態で、この凹
部２１がフランジ４の係合孔５に対応した位置にある。Next, the inner pipe 8 is attached to the auxiliary flange 7 of the partition plate 2a.
Insert and fix a. This partition plate 2a is then supported by a cylindrical receiving jig 20, as shown in FIG. The outer diameter of this receiving jig 20 is equal to the inner diameter of the seven runs') 4, and the end of this receiving jig 20 is inserted so as to be in contact with the inner peripheral surface of the flange 4. As shown in FIG. 7, at the end of the jig 20, the bone is formed with a four part 21 at a position of, for example, 4 m, and when the bone is inserted into the flange 4'', this recess 21 engages with the flange 4. It is located at a position corresponding to the matching hole 5.

この挿入状態で、受け治具２０を移動させて第２図、第
８図に示すように、仕切板２ａを外筒１内の所定位置に
圧入する。この正大状態でフランジ４は外筒１の内周面
に接している。In this inserted state, the receiving jig 20 is moved to press fit the partition plate 2a into a predetermined position within the outer cylinder 1, as shown in FIGS. 2 and 8. In this normal state, the flange 4 is in contact with the inner peripheral surface of the outer cylinder 1.

同様にして、池の受け治具２０により池の仕切板２ｂを
外筒ｌ内の所定位置に挿入する。この仕切板２ｂの補助
フランジ７には、予め、インナーパイプ８　ｂ、　８　
ｃ、　８　ｄを挿入固定しておく。なお、この挿入の際
、インナーパイプ８　ｂ、　Ｆ３　ｄの端部は前述の仕
切板２ａの補助フランジ７に挿入固定される。Similarly, the pond partition plate 2b is inserted into a predetermined position inside the outer cylinder l using the pond receiving jig 20. The auxiliary flange 7 of this partition plate 2b is provided with inner pipes 8b, 8 in advance.
Insert and secure c and 8 d. Note that during this insertion, the ends of the inner pipes 8b and F3d are inserted and fixed to the auxiliary flange 7 of the partition plate 2a described above.

次に、第３図、第９図に示すように、フランジ４の係合
孔５に対応する外筒１の所定部位を、ポンチ３０により
打ち出すことにより、内方に突出する突起６を形成する
。この突起６は、上記打ち出しの際に係合孔５に係合す
る。この突起６の高さは、受け治具２０に形成された凹
部２１の深さによって規制される。この打ち出し加工の
際、ポンチ３０の打ち出し力が受け治具２０によって受
けられるため、外筒１および仕切板２　ａ、　２　ｂの
フランジ４が上記打ち出し力によって歪むのを防止でき
る。Next, as shown in FIGS. 3 and 9, a predetermined portion of the outer cylinder 1 corresponding to the engagement hole 5 of the flange 4 is punched out using a punch 30 to form a protrusion 6 that projects inward. . This protrusion 6 engages with the engagement hole 5 during the above-mentioned punching. The height of this protrusion 6 is regulated by the depth of the recess 21 formed in the receiving jig 20. During this punching process, since the punching force of the punch 30 is received by the receiving jig 20, it is possible to prevent the outer cylinder 1 and the flanges 4 of the partition plates 2a, 2b from being distorted by the punching force.

上記ポンチ３０は、複数に分割された分割片部３１を有
している。ポンチ３０の内部には中心軸に沿って空洞３
２が形成されており、この空洞３２の分割片部３１に対
応した部位には、先細となるテーパ３３が形成されてい
る。分割片部３１の先端部外面には、凸部３４が形成さ
れている。上記突起６の内径はこの凸部３４の外径によ
って決定される。上記空洞３２にはくさび型をなすマン
ドレル３５が途中まで収納されている。The punch 30 has a plurality of divided pieces 31. Inside the punch 30, there is a cavity 3 along the central axis.
2 is formed, and a taper 33 is formed in a portion of the cavity 32 corresponding to the divided piece portion 31. A convex portion 34 is formed on the outer surface of the tip portion of the divided piece portion 31 . The inner diameter of the protrusion 6 is determined by the outer diameter of the convex portion 34. A wedge-shaped mandrel 35 is housed halfway in the cavity 32.

次に、［０図に示すように、マンドレル３５を空洞３２
の先端まで圧入する。この結果、分割片部３１の先端部
が横方向に広がり、先端部の凸部３４によって、突起６
に膨出部６ａを形成する。Next, as shown in FIG.
Press fit to the tip of the As a result, the tip of the divided piece 31 expands laterally, and the protrusion 6
A bulging portion 6a is formed in the bulge.

この後マンドレル３５を後退させてポンチ３０を突起６
から抜き取る。また、受け治具２０ら外筒１から抜き取
る。上記のように突起６および膨出部６ａを簡単な作業
で形成することができる。After this, the mandrel 35 is moved backward and the punch 30 is inserted into the protrusion 6.
extract it from Further, the receiving jig 20 is removed from the outer cylinder 1. As described above, the protrusion 6 and the bulging portion 6a can be formed by a simple operation.

次に、第４図、第５図に示すように、外筒１の両端に端
板１１ａ、ｌｌｂを固定し、その開口を閉塞する。さら
に、端板１１ｇの補助フランジ１２にはインナーパイプ
８ａ、流入管１３の端部を挿入固定し、端板１１ｂの補
助７ランシ１４にはインテーパイブ８ｄ、流出管１５を
挿入固定する。Next, as shown in FIGS. 4 and 5, end plates 11a and 11b are fixed to both ends of the outer cylinder 1, and the opening thereof is closed. Further, the end portions of the inner pipe 8a and the inflow pipe 13 are inserted and fixed into the auxiliary flange 12 of the end plate 11g, and the intake pipe 8d and the outflow pipe 15 are inserted and fixed into the auxiliary seven rungs 14 of the end plate 11b.

本発明は上記実施例に制約されず種々の態様が可能であ
る。例えば、膨出部は突起の全周にわたって形成せずに
、複数箇所に形成してもよい。The present invention is not limited to the above embodiments, and various embodiments are possible. For example, the bulges may not be formed all around the protrusion, but may be formed at multiple locations.

免」へ肱１ 以上説明したように、本発明の清音器によれば、仕切板
のフランジが突起と係合孔との係合作用によって外筒に
固定されており、スポット溶接されていないため、湿食
現象を防止できる。また、突起には膨出部が形成されて
おり、この膨出部により突起が係合孔から抜けるのを防
止でき、仕切板を確実に所定位置に固定できる。また、
本発明の清音器製造方法によれば１．ポンチの打ち出し
およびこのポンチへのマンドレルの圧入によって、上記
突起および膨出部を比較的簡単に形成することができる
。また、ポンチの打ち出し力が受け治具に上って受けら
れるため、外筒および仕切板のフランジが上記打ち出し
力によって歪むのを防止できる。As explained above, according to the purifier of the present invention, the flange of the partition plate is fixed to the outer cylinder by the engagement action between the projection and the engagement hole, and is not spot welded. , can prevent wet corrosion phenomenon. Further, a bulge is formed on the protrusion, and the bulge can prevent the protrusion from slipping out of the engagement hole, and the partition plate can be reliably fixed in a predetermined position. Also,
According to the method for manufacturing a purifier of the present invention: 1. The protrusions and bulges can be formed relatively easily by punching out a punch and pressing a mandrel into the punch. Further, since the punching force of the punch is received by the receiving jig, it is possible to prevent the flanges of the outer cylinder and the partition plate from being distorted by the punching force.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の一実施例を示し、第１図〜第５図は製造
工程を順を追って説明する概略図、第６図は仕切板の固
定構造を拡大して示す断面図、＠７図は本発明方法に用
いられる受け治具の斜視図、第８図〜第１０図は突起お
よび膨出部の形成過程を順を追って説明する拡大断面図
である。The drawings show one embodiment of the present invention, FIGS. 1 to 5 are schematic diagrams explaining the manufacturing process step by step, FIG. 6 is a sectional view showing an enlarged fixing structure of the partition plate, and FIG. 7 8 is a perspective view of a receiving jig used in the method of the present invention, and FIGS. 8 to 10 are enlarged sectional views illustrating the process of forming protrusions and bulges in order.

Claims (2)

【特許請求の範囲】[Claims] （１）外筒の内面に仕切板を固定し、この仕切板により
外筒内を複数の区画室に仕切るようにした清音器におい
て、仕切板の周縁にフランジが形成され、このフランジ
に係合孔が形成され、外筒には、上記フランジの係合孔
に係合するとともにこのフランジからさらに内方向へ突
出する突起が形成され、この突起には、横方向に膨らむ
とともに係合孔の縁部の内面側に係合する膨出部が形成
されていることを特徴とする清音器。(1) In a purifier in which a partition plate is fixed to the inner surface of the outer cylinder and the partition plate partitions the inside of the outer cylinder into a plurality of compartments, a flange is formed on the periphery of the partition plate, and the flange is engaged with the flange. A hole is formed, and the outer cylinder is formed with a protrusion that engages with the engagement hole of the flange and projects further inward from the flange. A purifier characterized in that a bulging part is formed to engage with the inner surface of the part. （２）外筒内を複数の区画室に仕切るための仕切板を、
上記外筒に固定する際、上記仕切板の周縁のフランジに
係合孔を形成しておき、この仕切板を外筒内に挿入する
とともに、上記フランジの内側には上記係合孔に対応し
た部位に凹部を有する受け治具を配置し、この状態で、
内面にテーパを有するとともに先端部外面に凸部を有す
る複数の分割片部を備えたポンチにより、上記仕切板の
フランジの係合孔に対応する外筒の所定部位を内方向へ
打ち出して、上記係合孔に係合するとともに上記フラン
ジよりさらに内方向に突出する突起を形成し、次にこの
ポンチ内にマンドレルを圧入してポンチの各分割片部の
先端部を広げることにより、突起に抜け止め用の膨出部
を形成することを特徴とする清音器の製造方法。(2) A partition plate for dividing the inside of the outer cylinder into multiple compartments,
When fixing to the outer cylinder, an engagement hole is formed in the flange on the periphery of the partition plate, and this partition plate is inserted into the outer cylinder, and a hole corresponding to the engagement hole is formed inside the flange. A receiving jig with a recess is placed at the site, and in this state,
A predetermined portion of the outer cylinder corresponding to the engagement hole of the flange of the partition plate is punched inward using a punch provided with a plurality of divided pieces having a tapered inner surface and a convex portion on the outer surface of the tip. A protrusion is formed that engages with the engagement hole and protrudes further inward from the flange, and then a mandrel is press-fitted into this punch and the tips of each split piece of the punch are widened to allow the protrusion to pass through the protrusion. A method for manufacturing a purifier, characterized by forming a bulge for a stop.
JP325885A 1985-01-14 1985-01-14 Silencer and its manufacture Granted JPS61164028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP325885A JPS61164028A (en) 1985-01-14 1985-01-14 Silencer and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP325885A JPS61164028A (en) 1985-01-14 1985-01-14 Silencer and its manufacture

Publications (2)

Publication Number Publication Date
JPS61164028A true JPS61164028A (en) 1986-07-24
JPH0477132B2 JPH0477132B2 (en) 1992-12-07

Family

ID=11552443

Family Applications (1)

Application Number Title Priority Date Filing Date
JP325885A Granted JPS61164028A (en) 1985-01-14 1985-01-14 Silencer and its manufacture

Country Status (1)

Country Link
JP (1) JPS61164028A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7063182B2 (en) * 2003-08-14 2006-06-20 Arvinmeritor Technology, Llc Muffler baffle plate spacer formed from stock material
WO2012113560A3 (en) * 2011-02-24 2012-11-01 Kathrein-Werke Kg Retaining and anchoring device on a metal plate for fastening a functional support, and an associated method for producing such a retaining and anchoring device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7063182B2 (en) * 2003-08-14 2006-06-20 Arvinmeritor Technology, Llc Muffler baffle plate spacer formed from stock material
WO2012113560A3 (en) * 2011-02-24 2012-11-01 Kathrein-Werke Kg Retaining and anchoring device on a metal plate for fastening a functional support, and an associated method for producing such a retaining and anchoring device
CN103380305A (en) * 2011-02-24 2013-10-30 凯瑟雷恩工厂两合公司 Retaining and anchoring device on a metal plate for fastening a functional support, and an associated method for producing such a retaining and anchoring device
US20130328744A1 (en) * 2011-02-24 2013-12-12 Kathrein-Werke Kg Retaining and anchoring device on a metal plate for fastening a functional support, and an associated method for producing such a retaining and anchoring device
US9912035B2 (en) 2011-02-24 2018-03-06 Kathrein-Werke Kg Retaining and anchoring device on a metal plate for fastening a functional support

Also Published As

Publication number Publication date
JPH0477132B2 (en) 1992-12-07

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