Mounting device for exhaust component

Abstract

To propose a mounting device for an exhaust component capable of improving rigidity and suppressing generation of damage or vibration.SOLUTION: A mounting device for an exhaust component has a plate-shaped first wall part 3 and a plate-shaped second wall part 4, where a distance between the first wall part 3 and the second wall part 4 increases from one end side toward the other end side. Between one end of the first wall part 3 and one end of the second wall part 4, a support side mounting part 5 for mounting a support member 2 is provided. The support side mounting part 5 is formed in an arc or U-shape. At the first wall part 3 and the second wall part 4, one axial end part of the support member 2 is mounted to an exhaust component 10.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to an exhaust component mounting device.

Background Art

[0002] Conventionally, exhaust components such as mufflers and exhaust pipes arranged under the floor of a vehicle such as an automobile have been supported from above by a support device such as a support bracket.

[0003] As this support device, it is known to have a U-shaped bracket having a pair of opposing side wall portions and an upper wall portion between ends on the side opposite to the mounting side of the side wall portions, fixing the mounting side portion of the bracket to the muffler, and attaching the upper wall portion of the bracket to a support member connected to the underfloor of the vehicle (see, for example, Patent Documents 1 and 2).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the support devices described in Patent Documents 1 and 2 above, since the bracket is formed in a U-shape, a pair of side wall portions are deformed into a substantially parallelogram shape starting from the mounting portion of the muffler, resulting in a decrease in rigidity, and there is a risk that the bracket may be damaged or vibrate easily.

[0006] Therefore, an object of the present invention is to provide an exhaust component mounting device that solves the above problems.

Means for Solving the Problems

[0007] In order to solve the above problems, the present invention has a plate-shaped first wall portion and a plate-shaped second wall portion, the distance between the first wall portion and the second wall portion is formed to be spaced apart from one end side to the other end side, a support-side attachment portion for attaching a support member is provided between one end of the first wall portion and one end of the second wall portion, and the support-side attachment portion is formed in an arc shape or a U shape, in the first wall portion and the second wall portion, one end portion in the axial direction of the support member is attached to an exhaust component, which is characterized in that.

[0008] Further, a bent side wall portion may be provided on the other end side of the first wall portion or / and the other end side of the second wall portion so as to be spaced apart from the opposing side wall portion toward the tip portion thereof.

Effect of the Invention

[0009] In the present invention, the distance between the first wall portion and the second wall portion is formed to be spaced apart from one end side to the other end side, and a support-side attachment portion for attaching a support member is provided between one end of the first wall portion and one end of the second wall portion, and the support-side attachment portion is formed in an arc shape or a U shape, whereby the rigidity can be increased more than that of the prior art, and the occurrence of damage and vibration can be suppressed.

Brief Description of the Drawings

[0010]

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Mode for Carrying Out the Invention

[0011] An embodiment of the exhaust component mounting device according to the present invention will be described based on the examples shown in the drawings. In the following examples, an example in which the exhaust component mounting device is applied to the mounting of a muffler, which is an exhaust component, to a vehicle such as an automobile will be described.

[0012] [Example 1] FIG. 1 is a side view of a state where an exhaust component mounting device 1 according to Example 1 of the present invention is attached to a muffler 10 which is an exhaust component.

[0013] The exhaust component mounting device 1 is used to attach an exhaust component through which exhaust gas discharged from an engine of a vehicle such as an automobile flows to the underfloor of the vehicle or the like.

[0014] It has a support member 2 composed of a rod or the like attached to the underfloor of the vehicle or the like, and the support member 2 is provided with a mounting portion 2a for fixing a bracket 8 described later. At the tip of the mounting portion 2a, a retaining portion 2b having a diameter larger than that of the mounting portion 2a is formed. The position of the support member 2 with respect to the muffler 10 is not limited to that shown in FIGS. 1 to 4 and can be set arbitrarily.

[0015] As shown in FIGS. 1 to 4, the bracket 8 has a first wall portion 3, a second wall portion 4, and a support side mounting portion 5.

[0016] As shown in FIGS. 1 to 4, the first wall portion 3 is formed in a plate shape, and one end portion on the side opposite to the retaining portion 2b in the axial direction X-X of the support member 2 is bent by 90 degrees to form an exhaust-side first attachment portion 6 formed in an L shape.

[0017] The first wall portion 3 can be formed in any shape as long as it has a predetermined rigidity. In this embodiment, as shown in FIGS. 1 to 4, in the direction orthogonal to the axial direction X-X of the support member 2, one end side on the support member 2 side is a long portion 3a that is long in the axial direction X-X of the support member 2, and on the other end side opposite to the support member 2 of the long portion 3a, the length in the axial direction X-X of the support member 2 is shorter than that of the long portion 3a, and is composed of a short portion 3b.

[0018] The other end side of the short portion 3b is bent, and a bent side wall portion 7 that separates from the second wall portion 4, which is the opposing side wall portion, is formed as it approaches the tip portion. One end portion in the axial direction X-X of the support member 2 in the bent side wall portion 7 is bent to form an exhaust-side first attachment portion 6 that is attached to the muffler 10 by fixing means such as welding.

[0019] At least the other end side portion of the exhaust-side first attachment portion 6 of the first wall portion 3 and the exhaust-side first attachment portion 6 of the bent side wall portion 7 are fixed to the side plate 10a of the muffler 10 by fixing means such as welding. Note that at least the other end side portion of the exhaust-side first attachment portion 6 of the first wall portion 3 and the exhaust-side first attachment portion 6 of the bent side wall portion 7 can be attached to any location on the outer surface of the muffler 10 in addition to the side plate 10a of the muffler 10.

[0020] As shown in FIGS. 1 to 4, the second wall portion 4 is formed in a plate shape, and one end portion in the axial direction X-X of the support member 2 is bent by 90 degrees to form a bent exhaust-side second attachment portion 9 formed in an L shape. At least the other end side portion of the exhaust-side second attachment portion 9 is fixed to the side plate 10a of the muffler 10 by fixing means such as welding. Note that at least the other end side portion of the exhaust-side second attachment portion 9 can be attached to any location on the outer surface of the muffler 10 in addition to the side plate 10a of the muffler 10.

[0021] The second wall portion 4 can be formed in any shape as long as it has a predetermined rigidity. In this embodiment, as shown in FIGS. 1 to 4, one end portion which is the side portion of the support member 2 is composed of a long portion 4a that is long in the axial center X-X direction of the support member 2, and the other end portion on the side opposite to the support member 2 of the long portion 4a is composed of a short portion 4b whose length in the axial center X-X direction of the support member 2 is shorter than that of the long portion 4a.

[0022] Note that a bent side wall portion having the same structure as the bent side wall portion 7 of the first wall portion 3 may be formed on the other end side of the short portion 4b.

[0023] The distance between the first wall portion 3 and the second wall portion 4 is formed in a V shape so as to be separated from one end side to the other end side.

[0024] An arc-shaped support side attachment portion 5 for attaching to the support member 2 is provided between one end of the first wall portion 3 and one end of the second wall portion 4. The first wall portion 3, the second wall portion 4, and the support side attachment portion 5 are integrally formed as one member.

[0025] As shown by the broken line in FIG. 3, when a virtual arc-shaped bent portion 11 is formed at the portion where the extension line of one end of the first wall portion 3 and the extension line of one end of the second wall portion 4 intersect, the support member 2 and the support side attachment portion 5 are provided so that a part of the bent portion 11 intersects with the support member 2.

[0026] As shown in FIGS. 1 to 4, the attachment portion 2a of the support member 2 is arranged inside the support side attachment portion 5, and the support side attachment portion 5 is fixed to the attachment portion 2a of the support member 2 by any fixing means such as welding.

[0027] The wall portions 3 and 4 are formed to have a predetermined strength by the long portions 3a and 4a. Although there is a possibility that stress may concentrate on the other end side portions at the joint portions between the exhaust side attachment portions 6 and 9 of the long portions 3a and 4a and the muffler 10, by forming the short portions 3b and 4b on the other end sides of the long portions 3a and 4a, stress concentration can be suppressed. Note that when the possibility of stress concentration occurring is low, etc., the short portions 3b and 4b may not be provided.

[0028] By joining the exhaust-side attachment parts 6 and 9 formed in a bent shape to the wall parts 3 and 4 by welding or the like to the muffler 10, it becomes easy to attach the bracket 8 to the muffler 10. However, the exhaust-side attachment parts 6 and 9 may not be provided.

[0029] For example, as shown in FIG. 1, it is preferable to arrange at least one of the arrangement directions of the first wall part 3, the second wall part 4, and the bent side wall part 7 in any one of the vertical direction, the substantially horizontal direction, or the vibration direction of the exhaust component such as the muffler 10. Thus, by arranging the first wall part 3 or / and the second wall part 4 or / and the bent side wall part 7, the strength in that direction can be improved.

[0030] By providing the arc-shaped support-side attachment part 5 between one end of the first wall part 3 and the second wall part 4 and integrally forming the bracket 8, the support-side attachment part 5 supports the first wall part 3 and the second wall part 4 against each other, and the rigidity of the bracket 8 can be made higher than that of the prior art, and damage and vibration generation of the bracket 8 can be suppressed.

[0031] Further, by providing the bent side wall part 7 on the other end side of the first wall part 3, the bracket 8 can secure a predetermined rigidity even when the angle formed by the first wall part 3 and the second wall part 4 cannot secure an optimal angle.

[0032] [Example 2] In the above Example 1, the support-side attachment part 5 is formed in an arc shape, but it may be formed in a U shape.

[0033] For example, as shown in FIGS. 5 to 13, the support-side attachment portions 20, 30, 40 may be formed in a U shape with the arc portions 21, 31, 41 and the planar portions 22, 32, 42 provided at both ends thereof. The length of the planar portions 22, 32, 42 in the direction orthogonal to the axial center X-X direction of the support member 2 can be arbitrarily set. As shown in FIGS. 5 to 13, the end 2c on the side opposite to the arc portions 21, 31, 41 in the direction orthogonal to the axial center X-X direction of the support member 2 may be located on the side opposite to the arc portions 21, 31, 41 from one end in the direction orthogonal to the axial center X-X direction of the support member 2 in the wall portions 3, 4, or as shown in FIGS. 7 to 13, it may be located on the side of the arc portions 21, 31, 41 from one end in the direction orthogonal to the axial center X-X direction of the support member 2 in the wall portions 3, 4.

[0034] Note that, similar to the above-described first embodiment, when a virtual arc-shaped bent portion 11 is formed at the intersection of the extension line of one end of the first wall portion 3 and the extension line of one end of the second wall portion, as shown in FIGS. 5 to 13, the support member 2 and the support-side attachment portions 5, 20, 30, 40 are provided such that a part of the bent portion 11 intersects with the support member 2.

[0035] Since other configurations and structures are the same as those in the above-described first embodiment, the description thereof is omitted.

[0036] Also in the present second embodiment, the same operations and effects as those in the above-described first embodiment are achieved.

[0037] [Embodiment 3] In the above-described first and second embodiments, the attachment portion 2a of the support member 2 is provided inside the support-side attachment portion 5. However, when a virtual arc-shaped bent portion 11 is formed at the intersection of the extension line of one end of the first wall portion 3 and the extension line of one end of the second wall portion, it is sufficient that a part of the bent portion 11 abuts on or intersects with the support member 2. For example, as shown in FIG. 14, a support member may be provided at any position of the support members 51, 52, 53 outside the support-side attachment portion 50.

[0038] Since other configurations and structures are the same as those in the above-described first and second embodiments, the description thereof is omitted.

[0039] Also in the third embodiment, the same operations and effects as those in the first and second embodiments are exhibited.

Explanation of Reference Numerals

[0040] 1 Mounting device for exhaust components 2, 51, 52, 53 Support members 3 First wall portion 4 Second wall portion 7 Bent side wall portion 5, 20, 30, 40, 50 Support side mounting portions 10 Muffler (exhaust component)

Claims

1. having a plate-shaped first wall portion and a plate-shaped second wall portion, the distance between the first wall portion and the second wall portion is formed to be spaced apart from one end side to the other end side, a support-side attachment portion for attaching a support member is provided between one end of the first wall portion and one end of the second wall portion, and the support-side attachment portion is formed in an arc shape or a U shape, An exhaust component mounting device, characterized in that one end portion in the axial direction of the support member is attached to an exhaust component on the first wall portion and the second wall portion.

2. The exhaust component mounting device according to claim 1, wherein a bent side wall portion is provided on the other end side of the first wall portion and / or the other end side of the second wall portion so as to be spaced apart from the opposing side wall portion toward the tip portion thereof.

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