Muffler device for motorcycle
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0716424
(2010-03-03)
|
등록번호 |
US-8151932
(2012-04-10)
|
우선권정보 |
JP-2009-088444 (2009-03-31) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
6 |
초록
▼
An exhaust outlet 34 is formed at the center of a rear end wall 46 of a tail cap 21 closing a rear end opening of a muffler body 20, and a tail pipe 30 is connected at its rear end to the exhaust outlet 34. The exhaust outlet 34 is formed through a tail pipe supporting member 35 mounted on the rear
An exhaust outlet 34 is formed at the center of a rear end wall 46 of a tail cap 21 closing a rear end opening of a muffler body 20, and a tail pipe 30 is connected at its rear end to the exhaust outlet 34. The exhaust outlet 34 is formed through a tail pipe supporting member 35 mounted on the rear end wall 46. The tail pipe supporting member 35 is formed with an annular mud guiding groove 37 opening rearward around the exhaust outlet 34. The mud accumulated on the rear end wall 46 is guided into the mud guiding groove 37 and moved in the mud guiding groove 37 owing to its capillarity. Accordingly, the mud can be moved down along the mud guiding groove 37 and smoothly dropped to the ground, thus preventing the clogging of the exhaust outlet 34 with the mud on the rear end wall 46.
대표청구항
▼
1. A muffler device for a motorcycle, the muffler device comprising: an exhaust pipe having one end connected to an exhaust port of an engine and a muffler connected to the other end of said exhaust pipe;said muffler comprising a muffler body as an outer member,a tail cap closing a rear end opening
1. A muffler device for a motorcycle, the muffler device comprising: an exhaust pipe having one end connected to an exhaust port of an engine and a muffler connected to the other end of said exhaust pipe;said muffler comprising a muffler body as an outer member,a tail cap closing a rear end opening of said muffler body,an inner pipe accommodated in said muffler body,a tail pipe accommodated in said muffler body and connected to said inner pipe, said inner pipe having one end connected to said exhaust pipe, said tail pipe having one end connected to an exhaust outlet formed through said tail cap, anda folded portion forming an opening edge of the exhaust outlet;wherein said tail cap is formed with an annular mud guiding groove as a narrow groove surrounding said exhaust outlet,wherein the annular mud guiding groove comprises an inner circumferential wall, a bottom wall, and an outer circumferential wall,wherein the outer circumferential wall is tapered so that a width of the annular mud guiding groove is gradually increased toward a rear opening thereof, and the outer circumferential wall is continuously connected to an outer flange at a position rearwardly projected from an end of the folded portion. 2. The muffler device according to claim 1, wherein said muffler further comprises a tail pipe supporting member configured to support one end of said tail pipe, said tail pipe supporting member being integrated with said tail cap and having said exhaust outlet and said mud guiding groove. 3. The muffler device according to claim 2, wherein one end of said tail pipe supported by said tail pipe supporting member is formed as a cut edge portion, and said tail pipe supporting member is formed with an annular folded portion for covering said cut edge portion. 4. The muffler device according to claim 1, wherein said tail cap is further formed with a second mud guiding groove extending substantially straight downward from a lowermost end of said annular mud guiding groove. 5. A muffler device for a motorcycle, the muffler device comprising: exhaust pipe means for discharging exhaust, the exhaust pipe means having one end connected to an exhaust port of an engine and muffler means connected to the other end of said exhaust pipe means;said muffler means comprising a muffler body as an outer member,tail cap means for closing a rear end opening of said muffler body,an inner pipe accommodated in said muffler body,a tail pipe accommodated in said muffler body and connected to said inner pipe, said inner pipe having one end connected to said exhaust pipe means, said tail pipe having one end connected to an exhaust outlet formed through said tail cap means, andfolded portion means for forming an opening edge of the exhaust outlet;wherein said tail cap means is formed with annular mud guiding groove means for narrowly surrounding said exhaust outlet,wherein the annular mud guiding groove means comprises an inner circumferential wall, a bottom wall, and an outer circumferential wall,wherein the outer circumferential wall is tapered so that a width of the annular mud guiding groove means is gradually increased toward a rear opening thereof, and the outer circumferential wall is continuously connected to an outer flange at a position rearwardly projected from an end of the folded portion means. 6. The muffler device according to claim 5, wherein said muffler means further comprises tail pipe supporting member means for supporting one end of said tail pipe, said tail pipe supporting member means being integrated with said tail cap means and having said exhaust outlet and said mud guiding groove means. 7. The muffler device according to claim 6, wherein one end of said tail pipe supported by said tail pipe supporting member means is formed as a cut edge portion, and said tail pipe supporting member means is formed with an annular folded portion for covering said cut edge portion. 8. The muffler device according to claim 5, wherein said tail cap means is further formed with a second mud guiding groove means extending substantially straight downward from a lowermost end of said annular mud guiding groove means.
이 특허에 인용된 특허 (6)
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Yamamoto,Kazuo; Kaita,Kihoko; Yasuda,Kazuhiro; Koishi,Hiroaki, Exhaust silencer for internal combustion engine.
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Erion Craig (Santa Ana CA) Samhammer Christopher (Newport Beach CA), Motorcycle exhaust system.
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Yamaguchi,Takashi; Sakata,Hiroki; Ishiguri,Yoshiyuki, Muffler device.
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Nakagawa Takashi (Tokorozawa JPX) Sugiuchi Tadashi (Niiza JPX) Iwashita Kanau (Tokyo JPX) Uchida Masaaki (Kawagoe JPX), Muffler for internal combustion engines.
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Tabata Kazuki (Toda JPX) Honma Hideaki (Toda JPX), Silencer for motorcycle.
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Mukai Teruaki,JPX ; Watanabe Satoshi,JPX, Vehicle exhaust device.
이 특허를 인용한 특허 (5)
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Maejima, Hiroyuki; Baba, Kazutoshi, Exhaust device of engine.
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Hayama, Yoshitaka; Otsuka, Takuya; Inoue, Yusuke; Matsushima, Satoshi, Motorcycle.
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Fujita, Masato, Muffler unit and vehicle including the same.
-
Luttig, George; Emler, Don, Q4 muffler assembly.
-
Callahan, Joseph E., Thermal isolation disc for silencer.
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