JPH0536978Y2 - - Google Patents
Info
- Publication number
- JPH0536978Y2 JPH0536978Y2 JP1879387U JP1879387U JPH0536978Y2 JP H0536978 Y2 JPH0536978 Y2 JP H0536978Y2 JP 1879387 U JP1879387 U JP 1879387U JP 1879387 U JP1879387 U JP 1879387U JP H0536978 Y2 JPH0536978 Y2 JP H0536978Y2
- Authority
- JP
- Japan
- Prior art keywords
- cover
- muffler
- main body
- expansion chamber
- cylinder
- 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 - Lifetime
Links
- 238000005192 partition Methods 0.000 claims description 7
- 230000002265 prevention Effects 0.000 claims description 5
- 230000003584 silencer Effects 0.000 description 14
- 230000000694 effects Effects 0.000 description 2
- 230000030279 gene silencing Effects 0.000 description 2
- 238000004512 die casting Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
- Exhaust Gas After Treatment (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案はエンジンの消音器に関する。[Detailed explanation of the idea] [Industrial application field] The present invention relates to an engine muffler.
小形２サイクルエンジン用としてタール等の詰
りによるトラブルを防止し整備性の向上をはかつ
た第４〜５図に示すような分解型消音機が提案さ
れている。この分解型消音器は、板金又はダイキ
ヤストでつくられた消音器本体１と消音器蓋３と
を、図示のようにねじ４を介して着脱自在に取り
付けて、内部に消音室１０を形成し、消音器とし
ての機能を果すように構成されている。
A disassembled silencer as shown in FIGS. 4 and 5 has been proposed for use in small two-stroke engines, which prevents troubles caused by clogging with tar and improves maintainability. This disassembly type muffler has a muffler main body 1 made of sheet metal or die-casting and a muffler lid 3 which are detachably attached via screws 4 as shown in the figure to form a muffler chamber 10 inside. It is configured to function as a muffler.
図において、１ａは消音器入口、１ｂは消音器
出口、２，５はそれぞれパツキン、６は腕状隔壁
である。腕状隔壁６は消音器本体１内において、
底板６ａが消音器蓋３側に位置し、その開口部６
ｂが消音器入口１ａ側に位置するように配設さ
れ、さらに腕状隔壁６は底板６ａの中心部におい
てねじ４により消音器蓋３と共に消音器本体１に
固定されている。また消音器本体１内の消音室１
０は腕形状隔壁６により内側消音室１０ａと外側
消音室１０ｂとに区画されている。 In the figure, 1a is a silencer inlet, 1b is a silencer outlet, 2 and 5 are packings, and 6 is an arm-shaped partition. The arm-shaped partition wall 6 is located within the silencer main body 1,
The bottom plate 6a is located on the silencer lid 3 side, and the opening 6
The arm-shaped partition wall 6 is fixed to the muffler body 1 together with the muffler lid 3 by screws 4 at the center of the bottom plate 6a. In addition, the muffling chamber 1 inside the muffler main body 1
0 is divided by an arm-shaped partition wall 6 into an inner silencing chamber 10a and an outer silencing chamber 10b.
ところが従来形の消音器は構造が簡単ではある
が、締付部品が多いためその組立工数が多くコス
ト高となり、又締付部の熱変形による緩み等から
タール漏れ等が起り、性能面で信頼性に欠ける問
題点がある。
However, although conventional silencers have a simple structure, they require a large number of tightened parts, which increases the assembly man-hours and costs, and tar leakage occurs due to loosening of the tightened parts due to thermal deformation, making them unreliable in terms of performance. There is a problem with lack of sex.
本考案の目的は前記従来装置の問題点を解消
し、部品点数が少なく低コストで製作され、しか
も高性能でサービスが容易なエンジンの消音器を
提供するにある。 SUMMARY OF THE INVENTION The purpose of the present invention is to provide an engine muffler that eliminates the problems of the conventional device, has a small number of parts, is manufactured at low cost, has high performance, and is easy to service.
本考案は前記問題点を解決するためになされた
もので、シリンダの排気出口部と消音器本体の排
気入口部とを係合可能なテーパ状に形成し、同消
音器の合せ面よりガス及びタール等の漏れをガス
ケツト等を用いずに防止すると共に、消音器本体
と膨張室を形成するカバーとの間に隔室プレート
を挾持して消音効果を増大せしめ、さらに該プレ
ートと該カバーの間には火の粉飛散防止ネツトを
保持し、これらの部品より構成された消音器は組
み立てられた後取付ばねを介してシリンダに装着
するようにしたものである。
The present invention was made to solve the above problem, and the exhaust outlet of the cylinder and the exhaust inlet of the muffler body are formed into a tapered shape that can be engaged with each other, so that the gas can be removed from the mating surface of the muffler. In addition to preventing the leakage of tar etc. without using a gasket or the like, a partition plate is sandwiched between the muffler body and the cover that forms the expansion chamber to increase the silencing effect. holds a spark scattering prevention net, and after the silencer is assembled, it is attached to the cylinder via an attachment spring.
以下第１〜３図を参照し本考案の一実施例につ
いて説明する。第１図は本考案に係る実施例の断
面図、第２図は第１図の−断面図、第３図は
同矢視図、第４〜５図は従来例で第４図は断面
図、第５図は第４図のＶ−Ｖ断面図である。
An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. Fig. 1 is a sectional view of an embodiment according to the present invention, Fig. 2 is a - sectional view of Fig. 1, Fig. 3 is a view taken in the same direction, and Figs. 4 and 5 are conventional examples, and Fig. 4 is a sectional view. , FIG. 5 is a sectional view taken along the line V-V in FIG. 4.
シリンダ２１の排気出口２２と消音器本体２３
の排気入口部２４とは、図示のようにおすとめす
の同一テーパ状に形成され、ガスケツト等を用い
ず強固に気密に嵌め合わされている。消音器本体
２３の他端フランジ部と該フランジ部と係合する
膨張室カバー２５のフランジ部との間には、周囲
に多数の孔２７ａを有する隔室プレート２７を挾
持すると共に、該膨張室カバー２５の底部嵌合部
と隔壁プレート２７の中央突起部の間には火の粉
飛散防止ネツト２８が挾持されている。この様に
して組み立てられた消音器は、取付用ばね２６を
介してシリンダ２１に固定されている。取付用ば
ね２６の一端はシリンダ２１の突起３０に、又他
端は膨張室カバー２５に形成された凹陥部３１に
夫々係止されている。なお２９は消音器カバーで
ある。 Exhaust outlet 22 of cylinder 21 and muffler body 23
As shown in the figure, the exhaust inlet portion 24 and the exhaust inlet portion 24 are formed into the same male and female tapered shapes, and are tightly and airtightly fitted together without using a gasket or the like. A compartment plate 27 having a number of holes 27a around the periphery is sandwiched between the other end flange portion of the muffler main body 23 and the flange portion of the expansion chamber cover 25 that engages with the flange portion. A spark scattering prevention net 28 is held between the bottom fitting portion of the cover 25 and the central protrusion of the partition plate 27. The silencer assembled in this manner is fixed to the cylinder 21 via the mounting spring 26. One end of the mounting spring 26 is secured to a protrusion 30 of the cylinder 21, and the other end is secured to a concave portion 31 formed in the expansion chamber cover 25, respectively. Note that 29 is a silencer cover.
次に前記実施例の作用について説明する。 Next, the operation of the above embodiment will be explained.
前記テーパ嵌合部は、エンジンの環境に関係な
く常に取付用ばね２６により良好で気密な嵌合を
保ち、ガスケツトを用いずにタールやガスの漏れ
が防止される。排気出口２２からの排気は矢印の
様に隔室プレート２７の孔２７ａをへて膨張室３
２、火の粉飛散防止ネツト２８から消音器外へ排
出される。 The tapered fitting portion always maintains a good and airtight fit by the mounting spring 26 regardless of the environment of the engine, and leakage of tar and gas is prevented without using a gasket. Exhaust from the exhaust outlet 22 passes through the hole 27a of the compartment plate 27 as shown by the arrow and enters the expansion chamber 3.
2. Sparks are discharged from the spark scattering prevention net 28 to the outside of the silencer.
消音器は取付用ばね２６を取り外すと簡単にシ
リンダ２１のテーパ嵌合部から分離でき、消音器
本体２３と膨張室カバー２５は簡単に別体とな
り、隔壁プレート２７及び火の粉飛散防止用ネツ
ト２８も容易に取り外すことが可能であり、さら
にこれら部品は清掃の上組み立ても簡単にでき、
そのメインテナンスは極めて容易である。 The muffler can be easily separated from the taper fitting part of the cylinder 21 by removing the mounting spring 26, the muffler main body 23 and the expansion chamber cover 25 can be easily separated, and the bulkhead plate 27 and the net 28 for preventing scattering of sparks can also be separated. In addition to being easily removable, these parts are easy to clean and assemble.
Its maintenance is extremely easy.
本考案の消音器は、シリンダの排気出口部と消
音器の排気入口部をテーパ形状として嵌合させた
ことにより、ガスケツトを用いずに高いシール性
が確保される。又消音器本体と膨張室カバーとの
間には隔壁プレートを設けたため高い消音効果が
得られ、さらに前記プレートと膨張室カバーの間
に火の粉飛散防止ネツトを組み付けているため、
火の粉が消音器外に飛散するおそれはない。
In the silencer of the present invention, the exhaust outlet of the cylinder and the exhaust inlet of the silencer are fitted in a tapered shape, thereby ensuring high sealing performance without using a gasket. In addition, a bulkhead plate is provided between the muffler body and the expansion chamber cover, resulting in a high sound deadening effect, and a spark prevention net is installed between the plate and the expansion chamber cover.
There is no risk of sparks scattering outside the silencer.
第１〜３図は本考案に係るもので第１図は正面
断面図、第２図は第１図の−断面図、第３図
は同矢視図、第４〜５図は従来例で第４図は正
面断面図、第５図は第４図のＶ−Ｖ断面図であ
る。
２２……シリンダのテーパ状排気出口部、２３
……消音器本体、２４……消音器のテーパ状排気
入口部、２５……膨張室カバー、２６……取付用
ばね、２７……隔壁プレート、２８……火の粉飛
散防止ネツト。
Figures 1 to 3 are related to the present invention; Figure 1 is a front cross-sectional view, Figure 2 is a cross-sectional view in the direction of Figure 1, Figure 3 is a view taken in the same direction, and Figures 4 and 5 are conventional examples. 4 is a front sectional view, and FIG. 5 is a sectional view taken along the line V-V in FIG. 4. 22...Tapered exhaust outlet portion of cylinder, 23
. . . Silencer main body, 24 . . . Tapered exhaust inlet of the silencer, 25 . . . Expansion chamber cover, 26 . . . Mounting spring, 27 .
Claims (1)
嵌合するテーパ状の排気入口部を有する消音器本
体と、同消音器本体の端縁とフランジ部を介して
係合し周囲に多数の孔を有する隔壁プレートを前
記端縁とフランジ部の間に挾持して密着当接し膨
張室を形成する膨張室カバーと、同カバーと前記
プレート間に同カバーの軸線に沿つて支持された
火の粉飛散防止ネツトと、前記シリンダと前記カ
バーとの間に装架され前記構成部材を緊締する取
付用ばねとを有してなるエンジンの消音器。 A muffler main body has a tapered exhaust inlet that fits into an exhaust outlet of a tapered cylinder, and a muffler main body has a plurality of holes around the periphery that engage with the edge of the muffler main body via a flange. an expansion chamber cover which holds a partition plate having a structure between the end edge and the flange portion in close contact to form an expansion chamber; and a spark scattering prevention net supported between the cover and the plate along the axis of the cover. and a mounting spring mounted between the cylinder and the cover to tighten the component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1879387U JPH0536978Y2 (en) | 1987-02-13 | 1987-02-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1879387U JPH0536978Y2 (en) | 1987-02-13 | 1987-02-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63126511U JPS63126511U (en) | 1988-08-18 |
| JPH0536978Y2 true JPH0536978Y2 (en) | 1993-09-20 |
Family
ID=30812792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1879387U Expired - Lifetime JPH0536978Y2 (en) | 1987-02-13 | 1987-02-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0536978Y2 (en) |
-
1987
- 1987-02-13 JP JP1879387U patent/JPH0536978Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63126511U (en) | 1988-08-18 |
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