JPH04109414U - Exhaust pipe bracket - Google Patents

Abstract

(57) [Summary] [Purpose] To realize an exhaust pipe bracket that can easily and advantageously deal with misalignment of the exhaust pipe with respect to the vehicle body side bracket. [Structure] The cylindrical fitting part has an opening divided at at least one place on the circumference, and is fitted and fixed to the outer peripheral surface of the exhaust pipe by fastening the opening. A mounting base protruding outward is provided, and a mounting portion to be attached to the vehicle body via an elastic support is connected to the mounting base in such a manner that the protrusion dimension in the radial direction relative to the fitting portion can be adjusted. I forced it.

Description

[Detailed explanation of the idea]

0001

【Technical field】

This invention is an exhaust system for supporting an exhaust pipe on the vehicle body side via a predetermined elastic support. Regarding the trachea bracket, there was a misalignment with the vehicle body, especially when installing the exhaust pipe. This relates to the structure of the exhaust pipe bracket, which can be easily handled even in cases where be.

0002

[Background technology]

Generally, the exhaust pipe of an automobile internal combustion engine is connected to the internal combustion engine at its front end. At the same time, a predetermined elastic support (so-called muff) is attached to the vehicle body at the intermediate part. It is designed to be elastically supported via a rubber support.

0003 Then, the vehicle body via the elastic support at the middle or rear part of the exhaust pipe. Traditionally, side support is provided by a bracket fixed to the vehicle body and welded to the outer circumferential surface of the exhaust pipe. By connecting the fixed bracket via an elastic support, It was

0004 However, automobile exhaust pipes are several meters long, and their Misalignment with respect to the vehicle body when the vehicle is in a fixed position may cause the front end, which is the connection to the internal combustion In order to be caused by the central This is due to slight variations in the fixing position of the internal combustion engine itself to the vehicle body. At the middle or rear part of the exhaust pipe, connect the bracket installed on the vehicle body side to the exhaust pipe side. It is easy for misalignment to occur between the bracket installed on the This may occur.

[0005] Such misalignment can cause the vehicle body side bracket and exhaust pipe side bracket to This will be absorbed by the elastic deformation of the connecting elastic supports; The holding body usually has a static spring constant of 1 to 5 kgf/mm in order to obtain good vibration isolation performance. Because it is suppressed to a certain degree, abnormal load input due to positional deviation as mentioned above is prevented. As a result, it may deform significantly, making it impossible to achieve the desired anti-vibration performance, or This may cause problems such as a significant decrease in the durability of the product. Ru.

[0006] In addition, as mentioned above, conventional It is difficult to position the exhaust pipe side bracket when welding it to the exhaust pipe. , the work is troublesome, and there are also problems such as reducing the productivity of the exhaust pipe. That's what I was doing.

[0007]

[Problem to be solved]

Here, this invention was made against the background of the above-mentioned circumstances. , the problem to be solved is the misalignment that occurs between the exhaust pipe and the vehicle body. In addition to being able to easily deal with An object of the present invention is to provide an exhaust pipe bracket with an improved structure.

[0008]

[Solution]

In order to solve this problem, the present invention has a structure that is fixed to the exhaust pipe. By being installed on the vehicle body side via a predetermined elastic support, An exhaust pipe bracket for supporting such an exhaust pipe on the vehicle body side, the bracket comprising: (a) It has a cylindrical shape with an opening divided at at least one place on the circumference, and the opening At the same time, the exhaust pipe is inserted from the side of the exhaust pipe, and the opening is fastened. (b) a fitting portion fixedly attached to the outer circumferential surface of the exhaust pipe; a mounting base fixedly protruding outward in the radial direction with respect to the fitting part; and (c) the fitting part. The protrusion dimension in the radial direction is adjustable, and with any protrusion dimension, mounted on the elastic support, which is fixedly connected to the mounting base; The feature is that the structure includes a mounting part that can be attached. .

[0009]

[Action/effect]

That is, in the exhaust pipe bracket having the structure according to the present invention, In addition to being easy to install after manufacturing the exhaust pipe, the fitting part can be attached to the length of the exhaust pipe. By moving the exhaust pipe in the hand direction and the circumferential direction, It is possible to easily deal with misalignment in the direction and left and right directions, and the mounting part has no protrusions. By adjusting the protrusion height, the distance between the bracket installed on the vehicle body side can be adjusted. Misalignment can also be easily dealt with.

0010 Therefore, according to the exhaust pipe bracket of the present invention, there is no space between the exhaust pipe and the vehicle body. misalignment can be easily and effectively absorbed by the bracket itself. Therefore, even if there is a misalignment between the exhaust pipe and the vehicle body, the elastic support will not change. Exhaust air with good vibration isolation and durability without applying constant load. Support for the tube can be provided.

[0011]

【Example】

Hereinafter, in order to clarify the present invention more specifically, examples of the present invention will be described. This will be explained in detail with reference to the drawings.

0012 First, FIGS. 1 and 2 show one of the exhaust pipe brackets constructed according to the present invention. An example is shown. In these figures, 10 is a fitting cylinder as a fitting part. It is formed to have a substantially cylindrical shape. Moreover, this fitting cylinder 10 is made of gold. Formed by curving a strip-shaped blank plate made of deformable material such as metal. and has a divided opening 12 at one point on its circumference. Both end edges in the circumferential direction opposite to each other with the opening 12 in between are provided with diameters. Projecting pieces 14, 14 that are bent and project outward are integrally formed. Change In addition, the projections 14, 14 have a pair of insertion holes 16, 1 at corresponding positions. 6 are provided, and the fastening bolts 18 and nuts 20 inserted into each insertion hole 16 are provided with Therefore, by pinching the protruding pieces 14 on both sides, the diameter of the fitting cylinder 10 is reduced. It is now possible to

[0013] As a result, in such a fitting cylinder 10, the opening 12 can be expanded. This allows the exhaust pipe 22 to be extrapolated from the side, and After being inserted into the exhaust pipe 22, the diameter is reduced by the fastening bolt 18 and nut 20. Therefore, a tightening force is applied to the exhaust pipe 22, and the exhaust pipe 22 is fixedly fixed to the outer circumferential surface of the exhaust pipe 22. It is designed so that it can be fitted.

[0014] Further, a base bolt 24 serving as a mounting base is provided on the fitting cylinder 10. By being welded to the outer peripheral surface of the cylindrical body 10, it protrudes radially outward at a predetermined height. It is fixed. Further, the tip of the base bolt 24 has a predetermined length. A male thread groove is carved therein.

[0015] As described above, the fitting cylinder 10 is fitted and fixed to the exhaust pipe 22. Therefore, the base bolt 24 is in a state of protruding outward from the exhaust pipe 22. It is designed to be fixedly positioned relative to the trachea 22.

[0016] Furthermore, this base bolt 24 has a mounting portion with respect to the male threaded portion at its tip. A mounting bracket 26 is screwed on. This mounting bracket 26 as a whole It has a rod shape bent into an approximately L shape, and has a female threaded portion 28 at one end in the axial direction. have. Then, the base bolt 24 is screwed into the female threaded portion 28. By doing so, it further protrudes outward from the base bolt 24 by a predetermined distance, and The protruding end portion is bent at a substantially right angle and extended. Also, this The screwing position of the mounting bracket 26 is fixed by the lock nut 30. Therefore, it is fixedly connected to the base bolt 24 with a predetermined protrusion height. Ru.

[0017] In such a mounting bracket 26, the muffler is attached at the bent end portion. It is attached to the support 32 by being inserted through the attachment hole 34 thereof. Therefore, through the muffler support 32, it is fixedly installed on the vehicle body side (not shown). Since it will be connected and supported to the vehicle body side bracket 36 that has been Ru.

[0018] For exhaust pipe brackets with such a structure, as described above, The fitting cylinder 10 is fitted and fixed to the exhaust pipe 22, so that it can be installed. However, in that case, before tightening the fastening bolt 18 and nut 20, In this case, the fitting cylinder 10 can be freely moved in the longitudinal direction and the circumferential direction of the exhaust pipe 22. Moreover, before the lock nut 30 is tightened, , by adjusting the amount of screwing of the mounting bracket 26 into the base bolt 24. It is also possible to freely change the height of the fitting 26 protruding from the fitting cylinder 10. There is.

[0019] Therefore, according to this exhaust pipe bracket, the exhaust pipe is connected to the internal combustion engine. or due to variations in the fixing position of the internal combustion engine itself to the vehicle body. Due to this, if a positional shift occurs between the vehicle body side bracket 36 and the exhaust pipe 22, Also, the exhaust of the fitting cylinder 10 is This can be easily handled by adjusting the mounting position and angle with respect to the pipe 22. In addition, the distance between the vehicle body side bracket 36 and the exhaust pipe 22 can be Adjust the amount of screwing of the mounting bracket 26 into the base bolt 24 even for misalignment. This can be easily dealt with.

[0020] In this way, there is a misalignment between the vehicle body side bracket 36 and the exhaust pipe 22. Regardless of the size of such positional deviation, the exhaust pipe side brush can be effectively absorbed. It is possible to set the distance between the bracket and the vehicle body side bracket 36 to be approximately constant. This prevents abnormal load input to the muffler support 32. Therefore, the desired anti-vibration effect and durability can be advantageously and stably exhibited. It is.

[0021] In addition, in the exhaust pipe bracket having the above-described structure, the exhaust pipe bracket 22 is separate from the exhaust pipe 22. Since the exhaust pipe 22 is manufactured with a certain structure, it is extremely advantageous to improve the productivity of the exhaust pipe 22. It can be achieved.

[0022] Although one embodiment of the present invention has been described in detail above, this is a literal illustration. Therefore, the present invention should not be construed as being limited to such specific examples.

[0023] For example, in the above embodiment, the fitting part is divided at one point on the circumference. However, the fitting part was divided at multiple points on the circumference, and the parts were divided into hinge structures. It is also possible to have a structure in which they are connected using a connection structure using bolts or bolts. Ru.

[0024] Also, if the fitting part is provided with multiple divisions and openings, It is also possible to insert the fitting part into the exhaust pipe without deforming it.

[0025] Furthermore, in the embodiment described above, the connection between the mounting base and the mounting portion is achieved by the screw structure. However, it is not limited to this, for example, it can be set to multiple stages. A connection structure using pins, snap rings, etc. may also be used. Also, for vehicles After installation, there is no need to frequently change the protruding height of the mounting part. , Once the stepped base and the mounting part have been fixedly positioned and connected, It is also possible to employ a connection structure that cannot be easily modified.

[0026] In addition, the specific shape of the mounting part will be determined depending on the structure of the muffler support used. Of course, this may be changed as needed and is not limited.

[0027] In addition, although not listed one by one, the present invention may be modified based on the knowledge of those skilled in the art. It can be implemented in a form with changes, modifications, improvements, etc. All such embodiments are within the scope of the present invention as long as they do not depart from the spirit of the present invention. It goes without saying that this is included.

[Brief explanation of drawings]

FIG. 1 is an explanatory side view showing one embodiment of an exhaust pipe bracket having a structure according to the present invention.

FIG. 2 is a view taken along the line II-II in FIG. 1;

[Explanation of symbols]

10: Fitting cylinder 12: Opening 14: Projection piece 18: Fastening bolt 20: Nut 22: Exhaust pipe 24: Base bolt 26: Mounting bracket 28: Female thread 30: Lock nut 32: Muffler support 36: Vehicle side bracket

Claims (1)

[Scope of utility model registration request] 1. An exhaust pipe bracket that is fixedly provided to the exhaust pipe and is attached to the vehicle body side via a predetermined elastic support member to support the exhaust pipe on the vehicle body side, the bracket comprising: It has a cylindrical shape with an opening divided at at least one place on the top, and is inserted from the side of the exhaust pipe at the opening, and by fastening the opening, it is attached to the outer circumferential surface of the exhaust pipe. a fitting part that is fixedly attached; a mounting base that is fixed and protrudes radially outward with respect to the fitting part; and a radial protrusion dimension of the fitting part that is adjustable; An exhaust pipe bracket comprising: a mounting portion fixedly connected to the mounting base with an arbitrary protrusion dimension and mounted to the elastic support.