JP3107083B1 - Vehicle exhaust pipe support structure - Google Patents

Abstract

An object of the present invention is to enhance support rigidity of a vehicle exhaust pipe support structure. SOLUTION: A mounting member 2 for fixing a rod-shaped exhaust pipe support member 1 to a side surface 71 of a side member 7 of a vehicle is formed by bending a single metal plate, and is connected to a substantially U-shaped vertical section by a connecting surface 21. The first and second support member fixing surfaces 22 and 23 opposing each other are bent substantially at right angles from the left and right side edges of the first support member fixing surface 22 and extend along the side edges of the connection surface 21. It has a pair of left and right legs 24a, 24b, and flanges 25a, 25b at the ends of the legs and flanges 26a, 26b at the left and right side edges of the second support member fixing surface 23.
And the overlapping flange portions 25a, 25
The flange portions 25b and 26b overlapping with the side member 6a are connected to the side surface 71 of the side member 7, and the exhaust pipe support member 1 is inserted into the through holes 27 and 28 of the first and second support member fixing surfaces 22 and 23.
And the exhaust pipe is supported by the distal end portion of the exhaust pipe support member 1 protruding from the first support member fixing surface 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle exhaust pipe supporting structure in which an exhaust pipe is supported by a side member of a vehicle body, and more particularly, to a vehicle exhaust in which an exhaust pipe is supported by an exhaust pipe supporting member projecting from a side surface of a side member. The present invention relates to a tube support structure.

[0002]

2. Description of the Related Art Generally, as a support structure for an exhaust pipe of a vehicle,
There is a structure in which an exhaust pipe provided along a bottom surface of a vehicle body is suspended and supported via an exhaust pipe mount rubber on an exhaust pipe support member protruding from a side surface of a side member of the vehicle body. FIGS. 5 and 6 show a typical conventional exhaust pipe support structure. The exhaust pipe supporting member 4 is formed by bending the base end of a small-diameter rod member (including a pipe member) into an L-shape. The fitting member 5 having the fitting member 50 is fitted along the vertical groove 50 and welded to the fitting member 5 so that the tip of the exhaust pipe supporting member 4 projects from the fitting member 5.

[0003] Then, as shown in FIG.
Is welded to the side surface 71 of the side member 7 of the vehicle body, and the distal end of the exhaust pipe support member 4 projects from the side surface 71 of the side member 7 in a direction substantially perpendicular to the surface. On the other hand, the exhaust pipe 8 is provided with a bracket 82 having a support shaft 83 on an end surface of a muffler 81 connected to the exhaust pipe 8. Then, the distal end of the exhaust pipe supporting member 4 coupled to the side surface 71 of the side member 7 is pressed into a through hole above the thick exhaust pipe mount rubber 9 having two through holes at the top and bottom, and the exhaust pipe is Mount rubber 9
The exhaust shaft 8 is suspended from the exhaust tube support member 4 integrally with the muffler 81 by press-fitting the support shaft 83 into a through hole below the support shaft 83.

[0004]

By the way, to the tip of the exhaust pipe supporting member 4, vehicle body vibration during running of the vehicle and exhaust vibration from the exhaust pipe are transmitted. However, in the conventional structure, the amount of protrusion of the exhaust pipe support member 4 from the attachment member 5 coupled to the side surface 71 of the side member 7 is large, and the exhaust pipe support member 4
Has insufficient support rigidity, and the end of the exhaust pipe supporting member 4 is shaky due to the vibration of the vehicle, and the support of the exhaust pipe becomes unstable.
Accordingly, an object of the present invention is to enhance the support rigidity of the exhaust pipe support member, suppress wobble of the exhaust pipe support member, and stabilize the support of the exhaust pipe.

[0005]

According to the present invention, there is provided a vehicle in which a rod-shaped exhaust pipe support member is fixed to a side surface of a side member of a vehicle by a mounting member, and the exhaust pipe is supported by the exhaust pipe support member protruding from the side member. In the exhaust pipe support structure, the mounting member is formed by bending a single metal plate, and is substantially parallel to the side surface of the side member and faces each other.
The first and second support member fixing surfaces are the side members.
Longitudinal section due to continuous surface almost horizontal in the direction perpendicular to the side surface of
The first support member fixing surface is connected to the left and right sides of the first support member fixing surface.
A pair of left and right legs that are bent at substantially right angles from the vertical edges and extend along the side edges of the connection surface, and the left and right sides of the flange portions formed at the leg ends of the two legs and the second support member fixing surface, respectively. by polymerizing a flange portion formed on the longitudinal edges of the polymerization
The exhaust pipe support member is inserted into a through hole formed at the center of the first and second support member fixing surfaces opposed to each other, and the flange portion is integrally connected to the side surface of the side member. The exhaust pipe is supported by a distal end of the exhaust pipe support member projecting from the first support member fixing surface.

[0006] The first and second support member fixing surfaces of the mounting member formed by bending and forming a single metal plate are connected to the leg ends of both legs extending from the first support member fixing surface and the second support member fixing surface.
Because I joined the vertical edge to the side of the side member integrally,
The mounting member has high rigidity and is firmly fixed to the side member. Since the exhaust pipe supporting member is coupled to the first and second supporting member fixing surfaces, the exhaust pipe supporting member is stable without wobble.

The present invention also provides a vehicle exhaust pipe support structure in which a rod-shaped exhaust pipe support member is fixed to a side surface of a side member of a vehicle by a mounting member, and the exhaust pipe is supported by the exhaust pipe support member protruding from the side member. in, the mounting member is made by bending a single metal plate, the rhino
The support member fixing surface substantially parallel to the side surface of the door member and a pair of left and right legs bent at substantially right angles from the left and right vertical edges thereof are formed in a U-shape in horizontal section, and the exhaust pipe support member is formed in a central portion. The exhaust pipe support member is formed into a bent rectangular shape, and the distal end side of the exhaust pipe support member is inserted and coupled into a through hole formed in the support member fixing surface, and the flange portion formed at the base end side is connected to the pair of leg portions. The flange portion formed at the leg end of one leg portion is overlapped, and the two flange portions to be overlapped are integrally joined to the side surface of the side member , and the flange portion formed at the leg end of the other leg portion is connected to the side portion. The exhaust pipe is supported by a distal end portion of the exhaust pipe support member that is coupled to a side surface of the member and protrudes from the support member fixing surface (claim 2).

The exhaust pipe support member has its base end integrally connected to the side surface of the side member integrally with the leg end of the leg extending from the support member fixing surface of the mounting member, and has its distal end side connected to the support member fixing surface. Therefore, it is stable without wobble.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. The exhaust pipe support structure includes an exhaust pipe support member 1 and a mounting member 2 for mounting the exhaust pipe support member 1 to the side surface 71 of the side member 7, and projects substantially perpendicular to the side surface 71 of the side member 7. The exhaust pipe 8 (muffler 81)
Is supported to be suspended.

The exhaust pipe support member 1 is formed of a linear metal pipe member, and has a larger diameter at the tip than a general portion.
A substantially mushroom-shaped stopper portion 11 tapered toward the terminal is formed.

The mounting member 2 is formed by bending a flat metal plate 20 having the shape shown in FIG. Metal plate 20
Is a central portion 22 whose lower half is substantially square, symmetrical side portions 24a and 24b whose longitudinal widths extend from the central portion 22 toward both left and right sides, and side edges of the side portions 24a and 24b. , The band-like flange portion 25a which is longer and longer than these,
25b is formed in a substantially ribbon shape.

The upper half of the metal plate 20 has a central portion 23.
And the center part 23 and the center part 22 of the lower half part are formed by a connecting part 21 having a slightly smaller width than the center part 22. They are connected. The vertical width of the connecting portion 21 is slightly smaller than the horizontal width of the lower half side portions 24a and 24b.

In order to manufacture the mounting member 2 (FIG. 1) using the metal plate 20, through holes 27 and 28 are formed at the central positions of the central portions 22 and 23, respectively. Then, the flange portions 25a and 25b in the lower half are pressed to form step portions 250 at upper and lower positions of the central portion 251 in the vertical direction, and the upper and lower ends of the flange portions 25a and 25b are made of metal more than the central portion 251. The thickness is reduced by the thickness of the plate 20. Further, the upper half portion is pressed, and stepped portions 261 are formed at both ends of the central portion 23 so that the flange portions 26a and 26b are lower than the central portion 23.

Next, the metal plate 20 is placed in the center 2 of the lower half.
2 and connecting portion 21 and center portion 23 of upper half portion
Bending at right angles in the same direction at the boundary between the and the connecting portion 21. Further, the central portion 22 of the lower half portion and the left and right side portions 24a,
The side portions 24a and 24b are connected to the connecting portion 21 at the boundary with the connecting portion 21b.
Bends at right angles to the side, the boundary between the side portion 24a and the flange portion 25a, and the side portion 24b and the flange portion 2
5b, the flanges 25a, 25b are located at the center 2
Bending at right angles to the direction parallel to 2. Then, the flange portions 26a and 26b of the upper half portion are overlapped on the back surface side of the center portion 251 of the flange portions 25a and 25b of the lower half portion.

Further, the opposite central portions 22, 23 are opposed to each other.
The exhaust pipe supporting member 1 is inserted through the through holes 27 and 28 from the center portion 22 side, and welded around the through holes 27 and 28.

Thus, as shown in FIG. 1, the central portions 22 and 23 serve as first and second support member fixing surfaces, respectively, are connected in a substantially U-shaped cross section by a connecting surface (connecting portion) 21, and face each other. The first support member fixing surface 22, the second support member fixing surface 23, and the first support member fixing surface 2
A pair of left and right legs (sides) 24a, 24b that are bent at right angles from the left and right vertical edges and extend along the side edges of the connection surface 21 are formed at the leg ends of the two legs 24a, 24b, respectively. On the back surface of the center part 251 of the flange parts 25a and 25b,
The flange portions 26a and 26b formed on the left and right vertical edges of the second support member fixing surface 23 overlap, and the first and second flanges 26a and 26b overlap.
The supporting member fixing surfaces 22 and 23 constitute the mounting member 2 which supports the exhaust pipe supporting member 1 by projecting its front end forward from the first supporting member fixing surface 22.

The mounting member 2 is fixed to the side member 7 by welding the overlapping flange portions 25a and 26a and the flange portions 25b and 26b to the side surface 71 on the vehicle interior side of the side member 7. As a result, as shown in FIG.
As described above, the first member connected by the connection surface 21 which is substantially horizontal
And the second support member fixing surfaces 22 and 23 are
The exhaust pipe supporting member 1 has a distal end protruding from the first supporting member fixing surface 22 in a direction substantially perpendicular to the side surface 71 of the side member 7. .

As shown in FIG. 3, a bracket 82 projects from an end surface of a muffler 81 connected to the exhaust pipe 8, and a support shaft 83 is attached to a tip of the bracket 82. The exhaust pipe support member 1 and the support shaft 8 of the muffler 81
3 and the exhaust pipe supporting member 1 and the support shaft 82 are press-fitted into the through-holes of the elliptical thick exhaust pipe mount rubber 9 having two through-holes at the top and bottom, respectively, thereby forming a muffler 81. The exhaust pipe 8 is suspended from the exhaust pipe support member 1 and supported integrally therewith. In this case, the stopper 11 at the end of the exhaust pipe support member 1 prevents the exhaust pipe mount rubber 9 from coming off, and the large diameter stopper at the end of the support shaft 83 prevents the exhaust pipe mount rubber 9 from coming off.

During traveling of the vehicle, vehicle body vibration and exhaust vibration from the exhaust pipe 8 are transmitted to the exhaust pipe support member 1 and the mounting member 2. On the other hand, the mounting member 2 is configured such that the first support member fixing surface 22 and the second support member fixing surface 23 are connected by the connection surface 21, and the leg portions 24 of the first support member fixing surface 22.
Since the flange portions 25a and 25b of the first and second support members a and 24b and the flange portions 26a and 26b at both ends of the second support member fixing surface 23 are respectively overlapped and integrally connected to the side surface 71 of the side member 7, the mounting member 2 It has high rigidity and is firmly fixed to the side member 7. Since the exhaust pipe support member 1 is connected to the first and second support member fixing surfaces 22 and 23 of the mounting member 2 at two locations spaced apart in the length direction,
The support rigidity is high, and wobble at the tip can be suppressed. Therefore, it is possible to stably support the exhaust pipe 8 without shaking against the vibration of the vehicle body and the exhaust vibration, and it is possible to prevent the noise of the exhaust pipe 8 and the like due to the vibration. Also,
Since the mounting member 2 is formed of one metal plate, the number of parts can be reduced.

A second embodiment of the present invention will be described with reference to FIG. This also includes an exhaust pipe support member 1A and a mounting member 2A for mounting the exhaust pipe support member 1A to the side surface 71 of the side member 7, similarly to the first embodiment. The exhaust pipe is hung at the tip of the exhaust pipe support member 1A that projects in the vertical direction.

The exhaust pipe supporting member 1A is formed by bending a metal pipe member from an intermediate portion in the longitudinal direction to form a substantially rectangular shape, and has a large-diameter mushroom-shaped stopper portion 11 at the tip. . Further, a crushing process is performed from the middle bent portion to the base end side, and a two-ply flange portion 12 is formed at the base end by completely crushing the pipe member and overlapping the plate surfaces. The flange portion 12 extends in a direction perpendicular to the tip of the exhaust pipe support member 1A.

The mounting member 2A is formed by bending a single metal plate into a substantially U-shaped horizontal cross section. The mounting member 2A has a support member fixing surface 22 protruding forward, and both right and left sides of the support member fixing surface 22.
It has a pair of left and right legs 24a, 24b that are bent substantially at right angles from the vertical edges and extend rearward.

The support member fixing surface 22 is formed with a through hole 27 at a substantially central position thereof, which is cut out from the upper edge in a substantially U-shape to open upward. Through hole 27
Is provided with a flange portion 271 projecting forward from the support member fixing surface 22 in the direction perpendicular to the entire surface of the opening edge.

Each of the legs 24a, 24b has a substantially trapezoidal shape in which the vertical width is widened from the vertical edge of the support member fixing surface 22 toward the leg end, and the leg ends of the legs 24a, 24b are respectively directed outward. Flange portions 25a, 25b bent to
And upper edge flanges 29a and 29b are formed. Also,
One of the flange portions 25b is formed with a step at the vertical position of the central portion 251 in the vertical direction by press working, and the upper and lower ends of the flange portion 25b are more flanged than the central portion 251 of the exhaust pipe support member 1A. Twelve sheet thicknesses lower.

The exhaust pipe supporting member 1A and the mounting member 2A
The position immediately before the intermediate bent portion of the exhaust pipe support member 1A is fitted into the through hole 27 of the support member fixing surface 22 of the mounting member 2A from above, and the bent base end side of the exhaust pipe support member 1A is connected to one leg. Arrange toward 24b side. Then, the intermediate portion of the exhaust pipe support member 1A is welded to the flange portion 271 of the through hole 27, and the flange portion 12 at the base end of the exhaust pipe support member 1A is connected to the center portion 2 of the leg end flange portion 25b of the leg portion 24b.
51, the top end of the exhaust pipe support member 1A is projected forward from the support member fixing surface 22 in a direction perpendicular to the surface by welding and overlapping the back surface.
Let me know .

The mounting member 2A is connected to each leg 24.
a, 24b and the flange portion 1 of the exhaust pipe supporting member 1A integrated with the flange portion 25b.
2 is overlapped on the side surface 71 of the side member 7 and welded. The upper edge flange 2 of each leg 24a, 24b
9a and 29b are also overlapped and welded to the upper edge flange 72 of the side member 7. Thereby, the support member fixing surface
22 is substantially parallel to the side surface 71 of the side member 7
The exhaust pipe supporting member 1 </ b> A has a front end projecting substantially perpendicular to the side surface 71 of the side member 7.

The exhaust pipe is suspended from the end of the exhaust pipe support member 1A projecting from the side surface 71 of the side member 7 via the exhaust pipe mount rubber and integrally with the muffler, as in the first embodiment. Support.

According to the present embodiment, the exhaust pipe supporting member 1
A shows a case where the base flange 12 is attached to the leg 2 of the mounting member 2A.
The side member 7 is integrally formed with the flange portion 25b of the leg end of the side member 4b.
Of the exhaust pipe supporting member 1
Since the exhaust pipe supporting member 1A is stabilized by coupling the intermediate portion of the exhaust pipe A to the support member fixing surface 22, the exhaust pipe is stably supported without wobble, as in the first embodiment. Noise can be prevented. Also, the number of parts can be reduced.

In the present embodiment, the through hole 27 of the support member fixing surface 22 of the mounting member 2A is formed above the support member fixing surface 22 in consideration of the workability of inserting the exhaust pipe support member 1A into the through hole 27. Although the shape is substantially U-shaped with an open edge, the shape is not limited to this and may be a round hole.

[0030]

According to the present invention, the exhaust pipe can be stably supported by the side member without fluctuation in the vehicle body or the exhaust vibration with a simple support structure having a small number of parts.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of an exhaust pipe support structure of the present invention. FIG. 1 (A) is a perspective view of the exhaust pipe support structure, and FIG. 1 (B).
FIG. 3 is a vertical sectional view of an exhaust pipe support structure.

FIG. 2 is a development view of a metal plate for forming a mounting member used in the first embodiment.

FIG. 3 is an exploded perspective view of the first embodiment.

4A and 4B show a second embodiment of the exhaust pipe support structure of the present invention. FIG. 4A is a perspective view of the exhaust pipe support structure, and FIG.
FIG. 4 is a side view of the exhaust pipe support structure.

FIG. 5 is a perspective view of a conventional exhaust pipe support structure.

FIG. 6 is a longitudinal sectional view of a conventional exhaust pipe support structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1A Exhaust pipe support member 12 Flange at base end 2, 2A Mounting member 21 Connecting surface 22 First support member fixing surface 23 Second support member fixing surface 24a, 24b Leg 25a, 25b Flange at leg end 26a, 26b Flange portion of second support member fixing surface 27, 28 Through hole 7 Side member 71 Side surface 8 Exhaust pipe 81 Muffler

Claims (2)

(57) [Claims] 1. A vehicle exhaust pipe support structure in which a rod-shaped exhaust pipe support member is fixed to a side surface of a side member of a vehicle by a mounting member, and the exhaust pipe is supported by the exhaust pipe support member protruding from the side member. The mounting member is 1
The metal plates become bent shaping, the side of the side member
First and second supports substantially parallel to the surface and facing each other
In the direction where the material fixing surface is orthogonal to the side surface of the side member,
A pair of left and right legs that are connected in a substantially U-shaped vertical cross-section by a horizontal connection surface, are bent substantially at right angles from right and left vertical edges of the first support member fixing surface, and extend along side edges of the connection surface. A flange portion formed on each of the leg ends of the two leg portions and a flange portion formed on the left and right vertical edges of the second support member fixing surface are overlapped, and the overlapped flange portions are integrally formed on the side surface of the side member . , And the exhaust pipe support member is inserted into a through hole formed at the center of the first and second support member fixing surfaces facing each other, and is connected to the both through holes. A support structure for a vehicle exhaust pipe, wherein the exhaust pipe is supported by a tip end of the exhaust pipe support member protruding from a fixing surface. 2. A vehicle exhaust pipe support structure, wherein a rod-shaped exhaust pipe support member is fixed to a side surface of a side member of a vehicle by a mounting member, and the exhaust pipe is supported by the exhaust pipe support member protruding from the side member. The mounting member is 1
The metal plates become bent shaping, the side of the side member
A supporting member fixing surface substantially parallel to the surface and a pair of left and right legs bent at substantially right angles from right and left vertical edges thereof are formed in a U-shaped horizontal cross section, and the exhaust pipe supporting member is bent at a central portion. The exhaust pipe support member is formed in a rectangular shape, and the distal end side of the exhaust pipe support member is inserted into and coupled to a through hole formed in the support member fixing surface, and a flange formed at the proximal end is formed on one of the pair of legs. The flanges formed at the leg ends of the legs are superimposed on each other, and the two flanges to be superimposed are placed on the side member side.
And a flange formed at a leg end of the other leg is coupled to a side surface of the side member , and the exhaust pipe supporting member protrudes from the support member fixing surface. A support structure for a vehicle exhaust pipe that allows the vehicle to be supported.