JP2023035752A - support bracket - Google Patents

Abstract

To provide a support bracket that even in such arrangement that a central axis of a pipe to support (suspend) and a central axis of a locking part of a support rod are parallel to each other, can absorb an alignment difference due to a difference in pipe diameter with a support bracket alone to be used in common.SOLUTION: A support bracket that is fixed to a pipe of a vehicle and supports the pipe to the vehicle, comprises a pair of members composed of a ceiling wall and a pair of side walls that are orthogonal and continuous on both sides of the ceiling wall. The pair of side walls is coaxially provided with insertion holes. The pair of members is fitted to face each other with the side walls partially in contact with each other, and an insertion part of a support rod is inserted into the insertion hole and fixed. The support rod comprises a locking part that is offset with respect to the insertion part.SELECTED DRAWING: Figure 3

Description

Detailed description of the invention

TECHNICAL FIELD The present invention relates to a support bracket for supporting piping of a vehicle on a vehicle body.

Conventionally, a support bracket (also known as a hanger bracket, a support device) fixed to the exhaust pipe has been used as a structure for supporting (suspending) a pipe through which fluid flows, such as an exhaust pipe, on the vehicle body, such as under the floor of the vehicle body. A structure is known in which a vehicle body is suspended and supported by a cross member or the like of a vehicle body via an elastic member (also known as a hanger rod, suspension rod) and an elastic member (also known as a support rubber). According to this structure, the vibration from the exhaust pipe can be absorbed by the elastic member and can be suppressed from being transmitted to the vehicle body.

In particular, in Patent Document 1, even if the diameter of the exhaust pipe to be attached is different, only the relative relationship and mounting posture of the constituent members are changed without changing the position of the support rubber that is the connection part on the vehicle side. A support bracket has been proposed for common use in The support bracket is rational and economical because it eliminates the need to change the mounting member side of the vehicle body or install a new support bracket.

A specific shared use state will be described in FIG. In FIG. 4, the case where the support bracket 100 is attached to the small diameter exhaust pipe 101 by welding or the like and is supported by the support rubber 107 (indicated by a two-dot chain line) is shown by solid lines, and the case where the large diameter exhaust pipe 102 is supported is shown by two lines. It is indicated by a dashed dotted line. At this time, the restriction condition is that the central axis o of both exhaust pipes and the central axis 108 of the engaging portion 106 are common. The relative angle (degree of opening) between the member 103 and the member 104 changes according to the diameter difference, and the center axis a of the insertion portion slightly moves to b. Along with this movement, the engaging portion 106 moves rightward in the figure on the center axis, and the tip c of the engaging portion also slightly moves to d.

In this way, the difference in diameter of the exhaust pipe is converted into movement of the engaging portion 106 on the central axis 108, but even if the tip c of the engaging portion moves slightly toward d, it does not interfere with the support rubber 107. There is no problem in terms of support. Therefore, the support bracket 100 can absorb the diameter difference of the supported exhaust pipe without changing the position of the support rubber 107, which is a member on the vehicle body side.

Japanese Patent No. 6607452

However, the common use that can absorb the diameter difference by the support bracket 100 of Patent Document 1 is that the center axis 108 of the support portion of the support rod is arranged non-radially in the plane perpendicular to the axis of the exhaust pipe as shown in FIG. Limited to cases where Therefore, it cannot be applied to the arrangement in which the central axis o of the exhaust pipe and the central axis of the engaging portion 106 of the support rod 105 are parallel. Since such a parallel arrangement is often used in actual vehicles, there is a need for a support bracket that can be commonly used even when the parallel arrangement is used.

Therefore, in the present invention, even when the central axis of the pipe to be supported and the central axis of the locking portion of the support rod are arranged in parallel, the single support bracket absorbs the alignment difference due to the diameter difference of the pipe and can be used in common. The object is to provide a support bracket.

In order to solve the above problems, the present invention provides a support bracket which is fixed to a pipe of a vehicle and supports the pipe to the vehicle, comprising a ceiling wall and a pair of side walls extending perpendicularly and continuously on both sides of the ceiling wall through-holes are coaxially formed in the pair of side walls, the pair of members are engaged in a state in which the side walls are partially in contact with each other, and the support is inserted into the through-holes. It is characterized in that the support rod is fixed in a state in which the insertion portion of the rod is inserted, and the support rod is provided with a locking portion that is offset with respect to the insertion portion.

According to the present invention, even when the central axis of the pipe to be supported and the central axis of the engaging portion of the support rod are arranged in parallel, the support bracket alone can absorb the alignment difference due to the diameter difference of the pipe, and the single support can be used. Common use can be achieved with brackets.

It is a top view and a front view according to the first embodiment of the present invention. It is the top view and the front view which concern on the 2nd Embodiment of this invention. FIG. 4 is a perspective view showing the configuration of the support bracket of the present invention; It is a front view of a conventional support bracket.

Preferred embodiments of the present invention will now be described with reference to the drawings. First, the structure of the support bracket 1 of the present invention will be described with reference to FIG. The pair of members 2 and 3 are the same members, and comprise a top wall 5 and a pair of side walls 6 and 7 which are continuous and orthogonal to both sides of the top wall 5. These are formed by pressing a metal plate into a U shape. It is formed by folding. The support bracket 1 of the first embodiment shown in FIG. 1 and the support bracket 200 of the second embodiment shown in FIG.

The pair of members 2 and 3 are each provided with a flange portion 8 at the edge of the ceiling wall 5 for being fixed to the outer peripheral surface of the pipe by welding or the like. These are also formed by bending by press working. The side walls 6 and 7 are coaxially formed with insertion holes 9 and 10 through which the support rod 4 is inserted.

The pair of members 2 and 3 face each other and are engaged with each other, and the pair of side walls 6 and 7 are offset by the plate thickness in the direction perpendicular to the side walls and abutted so that the axial centers of the insertion holes 9 and 10 are aligned. , the insertion portion 11 of the support rod 4 is inserted through the insertion holes 9 and 10 . Parts of the side walls 6 and 7 are welded together, and the side walls 6 and 7 and the insertion portion 11 of the support rod are welded all around at the periphery of the insertion holes 9 and 10 to form the support brackets 1 and 200. It is formed.

When the pair of members 2 and 3 are brought into contact with each other, the top wall of the pair of members 2 and 3 is rotated relatively around the axis of the insertion holes 9 and 10 (that is, the axis of the insertion portion 11). The relative angle between 5 can be adjusted. It should be noted that although it is preferable that the members 2 and 3 are the same member as in this embodiment, separate members having different shapes may be combined as necessary.

In this manner, the support bracket 1, to which the members 2 and 3 and the support rod 4 are fixed relative to each other at a constant angle, is fixed to the outer peripheral surface of a pipe (not shown) by welding or the like to form a support (suspension) structure.

Next, with reference to FIGS. 1 and 2, an embodiment of the support brackets 1 and 200 and an actual usage state will be described. 1 shows the state of supporting (suspending) a small-diameter pipe α, and FIG. 2 shows the state of supporting (suspending) a large-diameter pipe β. The lower views of FIGS. 1 and 2 are front views viewed horizontally from the extension direction of the central axis o of the pipe, and the left-right direction of the paper surface corresponds to the horizontal direction and the width direction of the vehicle. , is a top view looking down from vertically above, and the up-down direction of the paper surface corresponds to the front-rear direction of the vehicle.

In the first embodiment of FIG. 1, the flange portion 8 of the support bracket 1 is welded 15 to the outer peripheral surface of the pipe extending in the longitudinal direction of the vehicle, specifically the small-diameter pipe α suspended under the floor of the vehicle. 16. At this time, the central axis o of the pipe α and the central axis m of the support rod 4 are parallel, and the distance between them is H. The central axis o and the central axis m are separated by I in the vertical direction. Also, the relative opening angle between the top walls 5 of the members 2 and 3 is J.

The support rod 4 includes an insertion portion 11 fitted and fixed in the insertion holes 9 and 10, a locking portion 13 inserted through the support rubber, a crank portion 12 connecting the insertion portion 11 and the locking portion 13, and a locking portion. and a bulging portion 14 formed at the tip of the portion 13 . The insertion portion 11 and the locking portion 13 are parallel, that is, offset by a distance F. The tip e of the bulging portion 14 is on the central axis m.

The support bracket 1 is completed by fixing the members 2 and 3 and the support rod 4 to the support rod 4 by all-around welding at 17 and 18 while maintaining the positional relationship of the components as described above. By inserting the locking portion 13 of the support bracket 1 into support rubber (not shown), the pipe α, which is an exhaust pipe, is supported (suspended) under the floor of the vehicle.

The second embodiment of FIG. 2 is a support bracket 200 in which the support bracket 1 is applied to suspend a large-diameter pipe β. 1 and 2 differ only in that the members 2 and 3 and the support rod 4 are fixed relative to each other at different angles. That is, it can be used in common by only changing the self-assembly (relative angle) using the same components.

The second embodiment shown in FIG. 2 is an example in which a support bracket 200 is attached to a pipe β having a diameter approximately 15% larger than that of the pipe α. The flange portion 8 of the support bracket 200 is welded and fixed by welding portions 19 and 20 to the outer peripheral surface of the pipe β extending in the longitudinal direction of the vehicle. The constraint of not changing the positions of the central axis o and the central axis m in the first embodiment is adhered to. In other words, if you want to change only the pipe diameter without major changes such as moving the suspension parts (support rubber, etc.) on the vehicle side or the central axis of the pipe, you can only change the relative position of the components of the support bracket itself. is.

As a specific constraint condition, the central axis o of the pipe β and the central axis m of the support rod 4 are parallel and the distance between them remains H, and the vertical distance between the central axis o and the central axis m is also I remain. In order to comply with such a constraint, the support bracket 200 in the second embodiment is first brought into contact with the outer circumference of the pipe β with the relative opening angle between the top walls 5 of the members 2 and 3 set to K. The movement of the relative opening angle center l between the members 2 and 3 is absorbed by the rotation of the support rod 4 .

As a result, the line connecting the central axis o and the central axis m was horizontal in the first embodiment, but changed to an upward right angle on the paper surface by an angle N in the second embodiment. In addition, the center axis of the crank portion 12 of the support rod 4 was also upward right on the paper surface in the first embodiment, but changed to downward right on the paper surface in the second embodiment. In this way, the change in alignment caused by the change in the relative opening degree or attitude of the members 2 and 3 can be absorbed by rotating the crank-like support rod 4 offset from the piping.

In the actual mass production process, each component is welded at a predetermined angle instead of welding and fixing each part of the support rod to each other after the members 2 and 3 are brought into contact with the outer circumference of the pipe β each time. The support rod 4 as a finished product is welded to the outer periphery of the pipe, and when the pipe is supported (suspended) under the floor of the vehicle, the support rod 4 is inserted and fixed into the support rubber. Therefore, the support rod 4 has a high degree of freedom in design rather than a high degree of freedom in setting when assembling the pipes.

According to the present invention, even when the central axis of the pipe to be supported (suspended) is parallel to the central axis of the locking portion of the support rod, the support bracket alone can absorb the alignment difference due to the diameter difference of the pipe. Common use can be realized with one support bracket.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and the present invention encompasses any modifications that deviate from the gist of the present invention. The applicable vehicle piping is not limited to an exhaust pipe connected to an internal combustion engine, but can also be applied to other fluids such as intake and exhaust pipes of fuel cells, and pipes for transporting liquids such as fuel and oil.

1, 200 Support bracket 2 First member 3 Second member 4 Support rod 5 Top wall 6, 7 Side wall 8 Flange portion 9, 10 Insertion hole 11 Insertion portion 12 Crank portion 13 Locking portion 14 Bulging portions 15, 16, 19 , 20 welded part α, β pipe

Claims (1)

In a support bracket that is fixed to a vehicle pipe and supports the pipe to the vehicle,
A pair of members consisting of a ceiling wall and a pair of side walls that are orthogonal and continuous on both sides of the ceiling wall,
An insertion hole is coaxially formed in the pair of side walls,
The pair of members are engaged in a state where the side walls are partially in contact with each other, and the insertion portion of the support rod is inserted into the insertion hole and fixed in a state,
A support bracket, wherein the support rod has an engaging portion offset with respect to the insertion portion.

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