JPH05922U - Engine exhaust system - Google Patents

Abstract

(57) [Abstract] [Purpose] The workability of assembling the exhaust silencer to the vehicle body is improved by facilitating temporary attachment of the exhaust silencer to the vehicle body. [Structure] A lower end portion of a first vehicle body side hanger member 20 whose upper end portion is fixed to a cross member 12 is inserted through an upper insertion hole 22a of a first elastic body 22. The upper end of the first silencer-side hanger member 24 whose lower end is inserted into the lower insertion hole 22b of the first elastic body 22 is welded to the left side of the rear end 16c of the exhaust silencer 16. A lower end portion of the second vehicle body side hanger member 26 having an upper end portion fixed to the side frame 10 is inserted through the upper insertion hole 32a of the second elastic body 32. The lower end of the second silencer-side hanger member 34, the upper end of which is inserted through the lower insertion hole 32b of the second elastic body 32, has a reinforcement plate 36 at the rear end 16c of the exhaust silencer 16.
It is screwed to the bolt 38 that is planted via the.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to an exhaust system of an engine, and particularly to an improvement of a support structure of an exhaust silencer. Concerned.

[0002]

[Prior art]

  As an engine exhaust system, as disclosed in Japanese Utility Model Laid-Open No. 64-8524 , The exhaust silencer and one end of one of the front and rear ends of the exhaust silencer. And two silencer-side hanger members welded to both left and right sides of the section, A vehicle body that holds the other end of the silencer-side hanger member and has one end fixed to the vehicle body Two of the side hanger members have insertion holes extending in the left-right direction that allow the other end of the side hanger member to be inserted. An elastic body is known.

[0003]   One of the front and rear ends of the exhaust silencer in the above exhaust device is It is suspended on the car body in this way. That is, the worker held the exhaust silencer After inserting the other end of the vehicle body side silencer into the through hole of the one elastic body in the state, The other end of the other vehicle body silencer is inserted into the through hole of the other elastic body.

[0004]

[Problems to be solved by the device]

  However, with the exhaust silencer held as described above, the through hole of one elastic body The other side of the vehicle body-side silencer into the There is a problem in that the work of temporarily fixing it is extremely difficult.

[0005]   In view of the above, the present invention makes it easy to temporarily fix the exhaust silencer to the vehicle body. The purpose is to improve the workability of assembling the exhaust silencer.

[0006]

[Means for Solving the Problems]

  In order to achieve the above-mentioned object, the invention of claim 1 is directed to the front and rear end portions of the exhaust silencer. A silencer-side han whose one end and one end are held by the vehicle body via an elastic body One part of the joint structure with the other end of the gar member is joined with a bolt and a nut It is a structure.

[0007]   Specifically, a solution means devised by the device of claim 1 is an exhaust silencer and one end of a vehicle. It has an insertion hole through which the other end of the first vehicle body side hanger member fixed to the body is inserted. And a first elastic body having one end held by the first elastic body and the other end being the exhaust cylinder. The first servicer welded to one of the left and right sides at one of the front and rear ends of the lenser. The hanger member on the silencer side and the second hanger part on the vehicle body side, one end of which is fixed to the vehicle body A second elastic body held at the other end of the material, and one end held by the second elastic body Of the second silencer-side hanger member and the front and rear end portions of the exhaust silencer. The second silencer-side hanger portion is provided on the other side of the left and right sides of the one end portion. It is screwed to the other end of the material from one of the front and rear ends of the exhaust silencer. And a fastening portion.

[0008]   According to a second aspect of the invention, the other end of the vehicle-body-side hanger member is inserted into the insertion hole of the elastic body. The dead between the exhaust silencer and the rear pillar inner that was necessary. In order to make space unnecessary, in the structure of claim 1, the fastening portion is the exhaust siren. Provided on the inner side of the rear pillar at one of the front and rear ends of the The configuration is added.

[0009]

[Action]

  According to the structure of claim 1, the exhaust silencer is provided at one of the front and rear ends of the exhaust silencer. And a second silencer-side hanger whose one end is held by the vehicle body through the second elastic body. Since the other end of the gar member is provided with the fastening portion screwed from the one end side, The fastening part of the exhaust silencer is screwed to the other end of the second silencer-side hanger member. By wearing the exhaust silencer, the exhaust silencer can be easily temporarily fixed to the vehicle body.

[0010]   According to the configuration of claim 2, the fastening portion is one of the front and rear end portions of the exhaust silencer. Since it is provided on the inner side of the rear pillar in the section, the rear of the exhaust silencer On the pillar inner side, insert the other end of the vehicle body side hanger member into the insertion hole of the elastic body. Therefore, a space for moving the elastic body in the left-right direction is unnecessary.

[0011]

【Example】

  Embodiments of the present invention will be described below with reference to the drawings.

[0012]   FIG. 1 is a front view of an exhaust system for an engine according to an embodiment of the present invention viewed from the rear side of a vehicle body. The structure is shown.

[0013]   The exhaust system of the engine that is the subject of the present invention is one of the front and rear end parts of the exhaust silencer. At least one of the front end and the rear end is suspended from the vehicle body at two points. However, in the present embodiment, the exhaust silencer has two rear ends, It shows the case of being suspended on the body.

[0014]   In FIG. 1, 10 is a right side frame that extends in the vehicle front-rear direction, and 12 is a vehicle. A rear cross member extending in the lateral direction of the body, and 14 is provided below the cross member 12. The fuel tank, 16 is between the fuel tank 14 and the rear pillar inner 18 It is an exhaust silencer arranged. Note that 16a and 16b are exhaust silencers, respectively. 16 is an outlet pipe provided at a rear end portion 16c of the pipe 16.

[0015]   Between the fuel tank 14 and the exhaust silencer 16 below the cross member 12. The first vehicle-body-side hanger member 20 in the shape of a round bar bent in an L shape is arranged in the The upper end portion of the first vehicle body side hanger member 20 is welded to the lower portion of the cross member 12. It is fixed. The lower end of the first vehicle body-side hanger member 20 has a circular cross section. The first elastic body is inserted into the upper insertion hole 22a provided in the upper portion of the elastic body 22. The lower insertion hole 22b provided in the lower part of 22 has a round bar shape bent in a V shape. The lower end of the 1-silencer-side hanger member 24 is inserted. And the first rhino The upper end of the hanger member 24 on the side of the silencer is on the left side of the rear end 16c of the exhaust silencer 16. It is fixed to the upper part by welding. Left side of the rear end portion 16c of the exhaust silencer 16 The support structure of is similar to the conventional support structure.

[0016]   Further, on the lower side of the rear end of the side frame 10, a round bar-shaped first portion bent in a Z shape is formed. 2 The upper end of the vehicle body side hanger member 26 is fixed via the connecting member 28 and the bolt 30. The lower end of the second vehicle body-side hanger member 26 has a circular cross section. It is inserted into an upper insertion hole 32 a provided in the upper part of the body 32.

[0017]   A feature of this embodiment is that the lower insertion hole 32b provided in the lower portion of the second elastic body 32 is provided. Includes a second silencer including an upper V-shaped portion 34a and a lower linear portion 34b. The upper end of the side hanger member 34 is inserted. Right behind the exhaust silencer 16 A reinforcing plate 36 that is bent in a substantially Z shape is arranged in the portion, and the left end portion of the reinforcing plate 36 is disposed. Is the rear end portion 16c of the exhaust silencer 16, and the right end portion is the right side of the exhaust silencer 16. Each part is welded. A fastening portion is provided at the substantially central portion of the reinforcing plate 36 in the left-right direction. The upper and lower two bolts 38 are planted, and the second silencer is attached to the bolts 38. The lower end of the side hanger member 34 is screwed.

[0018]   Hereinafter, a method of assembling the exhaust silencer 16 to the vehicle body will be described.

[0019]   First, the first silencer-side hanger member 2 is inserted into the lower insertion hole 22b of the first elastic body 22. Attach the first elastic body 22 to the exhaust silencer 16 by inserting the lower end of No. 4 Set it aside. Further, the second vehicle body side hanger member is provided in the upper insertion hole 32a of the second elastic body 32. The lower end of the second elastic body 32 into the lower insertion hole 32b of the second elastic body 32, The upper end of the second vehicle body side hanger member 26 while inserting the upper end of each member 34 The part is attached to the lower surface of the side frame 10.

[0020]   Next, the bolt 38 planted in the reinforcing plate 36 is attached to the second silencer-side hanger member 3 By screwing the lower end portion of 4 to the right side of the rear end portion 16c of the exhaust silencer 16. Temporarily fix it to the vehicle body. After that, the first vehicle body side bracket is inserted into the upper insertion hole 22a of the first elastic body 22. The rear end portion 1 of the exhaust silencer 16 is inserted by inserting the lower end portion of the engagement member 20. Attach the left side of 6c to the vehicle body.

[0021]   As described above, the bolts 38 planted on the reinforcing plate 36 are connected to the second silencer side By screwing the lower end portion of the engagement member 34, the rear end portion 1 of the exhaust silencer 16 Since the right side of 6c can be temporarily fixed to the vehicle body, the exhaust silencer 16 can be attached to the vehicle body. The work of assembling becomes easy.

[0022]   When the right side of the rear end portion 16c of the exhaust silencer 16 is attached to the vehicle body, the second Insert the lower end of the vehicle body side hanger member 26 into the upper insertion hole 32a of the second elastic body 32. Therefore, it is not necessary to move the second elastic body 32 in the left-right direction. The second elastic body 32 is moved in the left-right direction between the rear pillar 32 and the rear pillar inner 18. There is no need to provide space for it. Therefore, the cross-sectional area of the exhaust silencer 16 is increased. The vibration noise of the exhaust silencer 16 due to exhaust pulsation is suppressed because it can be controlled it can. Further, the exhaust silencer 16 can be arranged on the right side of the conventional case. Then, the width of the fuel tank 14 in the left-right direction, and hence the volume of the fuel tank 14 is increased. be able to.

[0023]   Further, a reinforcing plate 36 is attached to the rear end portion 16c of the exhaust silencer 16. Therefore, the rigidity of the plate of the rear end portion 16c of the exhaust silencer 16 is improved, Vibration noise of the exhaust silencer 16 due to exhaust pulsation can be suppressed.

[0024]

[Effect of device]

  As described above, according to the engine exhaust device of the first aspect of the invention, Provided on either the left or right side of one of the front and rear ends of the air silencer And a silencer-side hanger member whose one end is held by the vehicle body through an elastic body. Since the end portion is provided with the fastening portion screwed from the one end side, the exhaust siren The screw fastening part is screwed to the other end of the silencer side hanger member, Since the air silencer can be temporarily fixed to the vehicle body, Workability is improved.

[0025]   According to the engine exhaust device of the second aspect of the present invention, the fastening portion has the exhaust size. It was provided on the inner side of the rear pillar at one of the front and rear ends of the lens. To move the elastic body to the left and right sides of the exhaust silencer on the inner side of the rear pillar. Since it is not necessary to secure the space between the exhaust silencer and the rear pillar inner, The dead space can be reduced.

[Brief description of drawings]

FIG. 1 is a front view of an exhaust system for an engine according to an embodiment of the present invention as viewed from the rear.

[Explanation of symbols]

16 ... Exhaust silencer 16c ... rear end 18 ... Rear pillar inner 20 ... 1st vehicle body side hanger member 22 ... First elastic body 22a ... Upper insertion hole (insertion hole) 22b ... Lower insertion hole 24 ... First silencer-side hanger member 26 ... Second vehicle body side hanger member 32 ... Second elastic body 34 ... Second silencer-side hanger member 36 ... Reinforcing plate 38 ... Bolt (fastening part)

Claims (2)

[Scope of utility model registration request] 1. An exhaust silencer, a first elastic body having an insertion hole through which the other end of a first vehicle body-side hanger member fixed to the vehicle body is inserted, and one end of the first elastic body. A first silencer-side hanger member, which is held by an elastic body and has the other end welded to one of the left and right ends of one of the front and rear ends of the exhaust silencer, and the first end fixed to the vehicle body No. 2 second elastic body held at the other end of the vehicle body-side hanger member, a second silencer side hanger member having one end held by the second elastic body, and front and rear end portions of the exhaust silencer. Fastened to the other side of the left and right sides of one end of the exhaust silencer and screwed to the other end of the second silencer-side hanger member from one end of the front and rear ends of the exhaust silencer. And an exhaust system for the engine. 2. The exhaust system for an engine according to claim 1, wherein the fastening portion is provided on a rear pillar inner side of one of front and rear end portions of the exhaust silencer.