JP2018083469A - Bracket member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bracket member that can be formed at relatively reduced cost and can be used for a plurality of kinds of pipe member having different diameters.SOLUTION: A bracket member includes: a first pipe attachment part 12 having a stay attachment part 11 to which a first stay 50 can be attached, and to which a first pipe member 20A can be attached in a predetermined direction; and a second pipe attachment part 13 to which a second pipe member 20B having a diameter larger than that of the first pipe member 20A can be attached in a direction orthogonal to the first pipe member 20A.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a structure of a bracket member for attaching a cylindrical pipe member included in a vehicle to a vehicle body.

  In general, a cylindrical pipe member (for example, an exhaust pipe) included in a vehicle is often attached to a vehicle body by a bracket member and a stay. For example, a bracket member is attached to the exhaust pipe, and one end side of a cylindrical stay is fixed to the bracket member, and the other end side of the stay is connected to the vehicle body, thereby attaching the exhaust pipe to the vehicle body. Specifically, a bracket welded to the exhaust pipe is provided, a light metal support shaft (stay) is fixed to a through hole formed in the bracket, and the exhaust pipe is attached to the vehicle body via the support shaft. (For example, refer to Patent Document 1).

JP 2002-188439 A

  By the way, in recent years, from the viewpoint of weight reduction, rust, welding quality stability, etc., the bracket member is formed by pressing a metal plate, and the stay is a small-diameter hollow (cylindrical) Member) has been adopted.

  Here, a mold is required to form the bracket member by pressing a metal plate. Since the mold is expensive, there is a problem that the manufacturing cost increases when the production amount of the bracket member is relatively small.

  Further, there are a plurality of pipe members such as exhaust pipes provided in the vehicle having different diameters, and there are also pipe members having different diameters depending on the part. Therefore, it is necessary to produce a plurality of types of bracket members according to the diameter of each pipe member, which also causes an increase in manufacturing cost.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a bracket member that can be formed at a relatively low cost and can be employed for a plurality of types of pipe members having different diameters. To do.

  An aspect of the present invention that solves the above problems is a bracket member that is fixed to a cylindrical pipe member included in a vehicle and to which a stay for connecting to a vehicle body is fixed, and the stay mounting portion to which the stay is attached And a first pipe mounting portion to which the first pipe member can be mounted in a predetermined direction, and a second pipe member having a diameter larger than that of the first pipe member in a direction orthogonal to the predetermined direction. And a second pipe attachment portion that can be attached.

  Here, the bracket member is formed of a metal plate, and has a pair of side portions facing each other with a gap therebetween, and a connecting surface portion connecting the end portions of the pair of side portions, and the first pipe. The attachment portion and the second pipe attachment portion are provided at the edge portions of the pair of side surface portions excluding the connection surface portion side, and the second pipe attachment portion is configured such that the second pipe member is the pair of the pair of side surfaces. It is preferable that it is formed so that it may contact the edge of the said connection surface part with the edge of a side part.

  In addition, the bracket member has a first flange portion extending toward the outer side of the pair of side surface portions constituting the first pipe mounting portion, and the second pipe mounting portion. Edges of the pair of side surface portions and the connecting surface portion constituting the portion have a second flange portion extending outwardly, and the first pipe member is disposed on the first flange portion. It is preferable that the second pipe member is welded to the second flange portion.

  Moreover, the recessed part which comprises the said stay attaching part is formed in the said connection surface part, for example. Moreover, the through-hole which comprises the said stay attaching part is provided through the said pair of side part, for example.

  Since the bracket member of the present invention can be shared by two types of pipe members having different diameters, the manufacturing cost can be reduced. In the bracket member of the present invention, since the direction in which the first pipe member is attached and the direction in which the second pipe member is attached are substantially orthogonal to each other, an error in the first pipe member and the second pipe member is caused. Pairs can be suppressed.

It is the schematic which shows an example of the usage condition of the bracket member which concerns on this invention. It is the schematic which shows an example of a structure of the connection member containing the bracket member which concerns on this invention. It is the schematic which shows an example of a structure of the connection member containing the bracket member which concerns on this invention. It is a perspective view which shows schematic structure of the bracket member which concerns on this invention. It is a top view which shows schematic structure of the bracket member which concerns on this invention. It is a top view which shows schematic structure of the bracket member which concerns on this invention, and is A arrow line view of FIG. It is a top view which shows schematic structure of the bracket member which concerns on this invention, and is B arrow view of FIG. It is the schematic explaining the welding range of the bracket member which concerns on this invention. It is the schematic which shows the other example of a structure of the connection member containing the bracket member which concerns on this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic diagram illustrating a usage mode of a bracket member according to the present invention, and FIG. 2 is a schematic diagram illustrating an example of a connecting portion.

  The bracket member according to the present invention is for attaching a cylindrical pipe member included in a vehicle to a vehicle body. For example, as shown in FIG. 1, the bracket member 10 constitutes a connecting member 30 for connecting and attaching an exhaust pipe 20 as a pipe member connected to an engine (not shown) provided in a vehicle to a vehicle body. is there. In this example, the connecting member 30 is provided on each of the upstream side and the downstream side of the muffler 40 of the exhaust pipe 20.

  Each of the connecting members 30 includes, for example, a first stay 50 and a second stay 60 together with a bracket member 10 to which the exhaust pipe 20 (20A, 20B) is fixed, as shown in FIGS. Hanger member 70.

  The first stay 50 and the second stay 60 are, for example, small-diameter cylindrical (hollow) members made of a metal material, and the weight of the exhaust pipe 20 with the exhaust pipe 20 connected to the vehicle body. Then, it has a rigidity that does not substantially deform. One end of the first stay 50 is fixed to the bracket member 10 by welding or the like, and the other end is engaged with the hanger member 70. One end of the second stay 60 is fixed to the frame 100 of the vehicle body by welding or the like, and the other end is engaged with the hanger member 70.

  The hanger member 70 is formed of, for example, an elastic material such as a rubber material, and connects the first stay 50 and the second stay 60 and suppresses transmission of vibration of the exhaust pipe 20 to the vehicle body. Fulfill. A plurality of through holes 71 are formed in the hanger member 70, and the first stay 50 and the second stay 60 are inserted into the through holes 71 and locked to the hanger member 70.

  The bracket member 10 is for attaching the first stay 50 to the exhaust pipe 20 which is a pipe member, and is fixed to the exhaust pipe 20 by welding. Since the exhaust pipe 20 has a cylindrical shape, it is difficult to ensure the bonding strength even if the cylindrical first stay 50 is welded to the surface thereof. For this reason, the joint strength between the exhaust pipe 20 and the first stay 50 is increased by interposing the bracket member 10 between them.

  As shown in FIGS. 4 to 7, the bracket member 10 has a stay mounting portion 11 to which the first stay 50 is fixed by welding. The bracket member 10 includes a first pipe attachment portion 12 and a second pipe attachment portion 13 to which two types of exhaust pipes 20 (20A, 20B) having different diameters are attached. In each bracket member 10, either the first exhaust pipe 20 </ b> A or the second exhaust pipe 20 </ b> B is attached to the first pipe attachment part 12 or the second pipe attachment part 13.

  Here, the bracket member 10 according to the present embodiment is formed by, for example, pressing a metal plate with a die (press die), and a pair of side portions 14 that are opposed to each other with a gap therebetween. A connecting surface portion 16 that connects the side surface portion 14. That is, the side part 14 is connected by the connection surface part 16 in the one side, and the other side is open | released.

  The stay attaching portions 11 are provided at two locations on the bracket member 10 in the present embodiment. First, the recessed part 17 which comprises the stay attaching part 11 is provided in the connection surface part 16 which connects a pair of side part 14. The recess 17 is formed in a curved surface shape that matches the diameter of the first stay 50. The recess 17 is provided along the gap between the pair of side surface portions 14. The first stay 50 is welded in a state in which the first stay 50 is disposed in the concave portion 17 and is substantially in close contact with the connecting surface portion 16. Thereby, the first stay 50 can be firmly fixed to the bracket member 10.

  In the present embodiment, the through holes 18 constituting the stay attaching portion 11 are provided so as to penetrate each of the pair of side surface portions 14. These through holes 18 are formed with a diameter substantially the same as or slightly larger than the diameter of the first stay 50. The first stay 50 can be welded in a state where the first stay 50 is inserted into each through hole 18 formed in the side surface portion 14.

  2 and 3 exemplify a configuration in which one first stay 50 is fixed to the concave portion 17 of the bracket member 10, but two first stays 50 may be used as necessary. It may be. Further, when one first stay 50 is used, the first stay 50 may be attached to the through hole 18 constituting the stay attaching portion 11.

  Further, by forming the recesses 17 in the connecting surface portion 16, ribs 19 that protrude relative to the recesses 17 are formed on both sides of the recess 17. The rib 19 serves to increase the rigidity of the bracket member 10 when the first stay 50 is attached to the through hole 18.

  Furthermore, when the first stay 50 is attached to the recess 17 of the bracket member 10, a small-diameter cylindrical member similar to the first stay 50 is attached to the through hole 18 in the same manner as the first stay 50 is attached. You may do it. Thereby, a deformation | transformation of a pair of side part 14 can be prevented and the rigidity of the bracket member 10 can be improved.

  The first pipe attachment portion 12 and the second pipe attachment portion 13 are provided at the edge of the side surface portion 14 connected by the connection surface portion 16. That is, the first pipe mounting portion 12 and the second pipe mounting portion 13 are provided at the edge portions of the pair of side surface portions 14 excluding the connecting surface portion 16 side.

  The first pipe attachment portion 12 has a first exhaust pipe (first pipe member) 20A so that the first exhaust pipe 20A is attached in a predetermined direction (for example, a direction along the surface of the side surface portion 14). It is formed according to the diameter. In the present embodiment, the pair of side surface portions 14 constituting the first pipe attachment portion 12 has a part on the tip end portion 14a side outward from the side surface portion 14 (opposite side to the pair of side surface portions 14). By extending, the 1st flange part 141 is formed (refer FIG. 7 etc.). The first exhaust pipe 20A is welded to the first flange portion 141 (see FIG. 4). The first flange portion 141 is formed in a curved shape that matches the diameter of the first exhaust pipe 20A. That is, the first pipe attachment portion 12 is formed so that the first exhaust pipe 20A is in surface contact with the inner side (the connecting surface portion 16 side) of the front end portion 14a of the side surface portion 14. Thereby, the first exhaust pipe 20 </ b> A is welded in a state in which the first exhaust pipe 20 </ b> A is in wide contact with the side surface portion 14 constituting the first pipe attachment portion 12. Therefore, the first exhaust pipe 20A and the bracket member 10 can be fixed satisfactorily. The first flange portion 141 also serves to increase the rigidity of the bracket member 10 when the second exhaust pipe 20 </ b> B is attached to the second pipe attachment portion 13.

  The second pipe attachment portion 13 is formed in accordance with the diameter of the second exhaust pipe (second pipe member) 20B having a larger diameter than the first exhaust pipe 20A. In the present embodiment, the end surface of the side surface portion 14 constituting the second pipe attachment portion 13 is formed in a curved shape matching the diameter of the second exhaust pipe 20B (see FIG. 5).

  Thus, the second exhaust pipe 20B is welded in a state of being in close contact with the side surface portion 14 constituting the second pipe attachment portion 13. Therefore, the second exhaust pipe 20B and the bracket member 10 can be fixed satisfactorily.

  Furthermore, in the present embodiment, the second pipe attachment portion 13 is formed such that the second exhaust pipe 20B contacts the edge portion of the connecting surface portion 16 together with the edge portions of the pair of side surface portions 14. Further, the second flange portions 142 and 161 are extended toward the outer sides of the edge portions of the side surface portion 14 and the connecting surface portion 16 constituting the second pipe attachment portion 13 (FIGS. 5 and 6). reference).

  The second exhaust pipe 20 </ b> B is welded at three locations of the second flange portions 142 and 161 provided at the edges of the pair of side surface portions 14 and the connecting surface portion 16. The second exhaust pipe 20B is larger in diameter than the first exhaust pipe 20A and has a lower surface rigidity than the first exhaust pipe 20A. By welding in such three places, the second exhaust pipe 20B and the second exhaust pipe 20B are connected to the second exhaust pipe 20B. The exhaust pipe 20B can be firmly joined. The second flange portions 142 and 161 also serve to increase the rigidity of the bracket member 10 when the first exhaust pipe 20A is attached to the first pipe attachment portion 12.

  On the other hand, the first exhaust pipe 20A is fixed to the bracket member 10 by welding to the first flange portions 141 of the pair of side surface portions 14 constituting the first pipe attachment portion 12, that is, welding at two locations. ing. Since the first exhaust pipe 20A has a smaller diameter and higher surface rigidity than the second exhaust pipe 20B, the first exhaust pipe 20A can be satisfactorily fixed to the bracket member 10 even by welding at two locations.

  Further, the second pipe attachment portion 13 is formed so that the second exhaust pipe 20B is attached in a direction orthogonal to the surface of the side surface portion 14. That is, the second pipe attachment portion 13 is attached in a direction orthogonal to a predetermined direction (for example, a direction along the surface of the side surface portion 14) in which the second exhaust pipe 20B is attached to the first exhaust pipe 20A. Is formed. In short, the bracket member 10 according to the present invention is formed so that the first exhaust pipe 20A and the second exhaust pipe 20B are fixed in an orthogonal direction (see FIG. 4).

  When the first exhaust pipe 20A and the second exhaust pipe 20B are attached to the bracket member 10 in the same direction, the first exhaust pipe 20A or the second exhaust pipe 20B is likely to be attached at an incorrect position. For example, there is a possibility that the first exhaust pipe 20A is mistakenly attached to the second pipe attachment part 13 or the second exhaust pipe 20B is mistakenly attached to the first pipe attachment part 12. However, the bracket member 10 is formed so that the first exhaust pipe 20A and the second exhaust pipe 20B are fixed in an orthogonal direction, thereby suppressing such an attachment position error (misassembly). can do.

  By the way, as described above, the first stay 50 and the first exhaust pipe 20A or the second exhaust pipe 20B are fixed to the bracket member 10 by welding. The welding position (welding range) of each member is not particularly limited and may be appropriately determined, but is preferably a position (range) as described below.

  For example, as shown in FIG. 8, the first exhaust pipe 20 </ b> A is welded to the first pipe mounting portion 12 in the welding range a, and the first stay 50 is welded to the concave portion 17 constituting the stay mounting portion 11. When welding with b, it is preferable that the center position P1 of the welding range b of the first stay 50 is within the welding range a of the first exhaust pipe 20A. Further, when the first stay 50 is welded in a state where the first stay 50 is inserted into the through hole 18 constituting the stay attaching portion 11, the center position P3 of the through hole 18 is also within the welding range a of the first exhaust pipe 20A. It is preferable. It is particularly preferable that the center position P1 of the welding range b and the center position P3 of the through hole 18 are near the center position P2 of the welding range a.

  Further, for example, when the second exhaust pipe 20B is welded to the second pipe attachment portion 13 in the welding range c, the center position P1 of the welding range b of the first stay 50 and the center position P3 of the through hole 18 are 2 is preferably within the welding range c of the exhaust pipe 20B. That is, a straight line connecting the center position P1 of the welding range b of the first stay 50 and the center position P3 of the through hole 18 and the center position P4 of the second exhaust pipe 20B is a welding range c of the second exhaust pipe 20B. It is preferable to be within. In addition, each said welding range can also be replaced with the contact range in which each member contacts a bracket member.

  As a result, it is possible to suppress changes in rigidity and strength due to variations in the welding of each member. That is, the first stay 50 and the first exhaust pipe 20A or the second exhaust pipe 20B can be fixed to the bracket member 10 by welding.

  In addition, as described above, the bracket member 10 according to the present invention includes the first pipe mounting portion 12 and the second pipe mounting portion 13 to which two types of exhaust pipes 20 (20A, 20B) having different diameters are respectively mounted. Yes. In other words, the bracket member 10 can be shared by two types of exhaust pipes 20 having different diameters. Therefore, the manufacturing cost of the bracket member 10 can be suppressed.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment.

  For example, in the above-described embodiment, the exhaust pipe is exemplified as the pipe member fixed to the bracket member, but the pipe member fixed to the bracket is not limited to the exhaust pipe. The pipe member may be a member (cylindrical member) whose surface is substantially circular. For example, as shown in FIG. 9, the bracket member 10 may be used with the second stay 60 fixed to the recess 17 (stay mounting portion 11) and the frame 100 fixed to the first pipe mounting portion 12. it can. Of course, the second stay 60 may be fixed to the through-hole 18 (stay mounting portion 11), and the frame 100 may be fixed to the second pipe mounting portion 13.

DESCRIPTION OF SYMBOLS 10 Bracket member 11 Stay attaching part 12 1st pipe attaching part 13 2nd pipe attaching part 14 Side face part 14a Tip part 16 Connection surface part 17 Recessed part 18 Through-hole 19 Rib 20 Exhaust pipe 20A 1st exhaust pipe 20B 2nd Exhaust pipe 30 Connecting member 40 Muffler 50 First stay 60 Second stay 70 Hanger member 71 Through hole 100 Frame 141 First flange portion 142, 161 Second flange portion

Claims (5)

A bracket member fixed to a cylindrical pipe member included in the vehicle and fixed to a stay for connecting to a vehicle body,
While having a stay attaching part to which the stay is attached,
A first pipe attachment portion to which the first pipe member can be attached in a predetermined direction;
A bracket member, comprising: a second pipe attachment portion capable of attaching a second pipe member having a diameter larger than that of the first pipe member in a direction orthogonal to the predetermined direction. In the bracket member according to claim 1,
Formed of a metal plate, and having a pair of side parts facing each other with a gap, and a connecting surface part for connecting these pair of side part ends to each other,
The first pipe mounting portion and the second pipe mounting portion are provided at edges of the pair of side surface portions excluding the connection surface portion side, and the second pipe mounting portion is the second pipe. A bracket member, wherein the member is formed so as to come into contact with an edge portion of the pair of side surface portions and an edge portion of the connecting surface portion. In the bracket member according to claim 2,
The edge portions of the pair of side surface portions constituting the first pipe attachment portion have a first flange portion extending toward the outside,
Edges of the pair of side surface portions and the connecting surface portion constituting the second pipe attachment portion have a second flange portion extending toward the outside thereof.
The first pipe member is welded to the first flange portion;
The bracket member, wherein the second pipe member is welded to the second flange portion. In the bracket member according to any one of claims 2 to 3,
A bracket member, wherein a recess that constitutes the stay mounting portion is formed in the connecting surface portion. In the bracket member according to any one of claims 2 to 4,
The bracket member characterized by the through-hole which comprises the said stay attaching part being penetrated and provided in a pair of said side part.

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