JPH02122114U

JPH02122114U -

Info

Publication number: JPH02122114U
Application number: JP3191489U
Authority: JP
Priority date: 1989-03-20
Filing date: 1989-03-20
Publication date: 1990-10-05

Description

[Brief explanation of drawings]

第１図は本考案を適用した一例に係る自動二輪
車の概略側面図、第２図は下方側排気装置の底面
図、第３図は上方側排気装置の要部破断平面図、
第４図は車体後部の背面図、第５図ａ及びｂは排
気管部分の各断面図、第６図はリヤカウルの平面
図、第７図は消音器内の縦断面図、第８図は比較
対比例の縦断面図、第９図と第１０図は変更例を
夫々示す消音器内の各横断面図、第１１図は変更
例を示すリヤカウルの背面図である。尚、図面中、６は後輪、２１，３１は排気管、
４１，５１は箱形消音器、４４は吸音材、６４は
リヤカウルである。 FIG. 1 is a schematic side view of a motorcycle according to an example to which the present invention is applied, FIG. 2 is a bottom view of a lower exhaust device, and FIG. 3 is a cutaway plan view of essential parts of an upper exhaust device.
Figure 4 is a rear view of the rear part of the vehicle body, Figures 5a and b are sectional views of the exhaust pipe section, Figure 6 is a plan view of the rear cowl, Figure 7 is a longitudinal sectional view of the inside of the muffler, and Figure 8 is FIGS. 9 and 10 are longitudinal cross-sectional views of a comparative example; FIGS. 9 and 10 are cross-sectional views of the interior of the muffler showing modified examples; and FIG. 11 is a rear view of a rear cowl showing a modified example. In addition, in the drawing, 6 is the rear wheel, 21 and 31 are the exhaust pipes,
41 and 51 are box-shaped mufflers, 44 is a sound absorbing material, and 64 is a rear cowl.

Claims

[Scope of Claim for Utility Model Registration] 1. A muffler installed in an exhaust pipe extending to the rear of the vehicle body is characterized by being formed into a substantially box shape, narrow in one dimension in the vertical direction and in the horizontal direction, and wide in the other dimension. vehicle exhaust system. 2. The muffler has the substantially box shape that is thin in the vertical dimension and wide in the horizontal direction, has a plurality of the exhaust pipes connected to it, and is disposed in the rear cowl above the rear wheel of the motorcycle. The exhaust system according to claim 1, characterized in that: 3. The muffler has the substantially box shape that is thin in the horizontal dimension and wide in the vertical direction, has a plurality of exhaust pipes connected to it, and is disposed on the side of the rear wheel of the motorcycle. The exhaust system according to claim 1, characterized in that: