JP2007327457A - Exhaust finisher installing structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an exhaust finisher installing structure capable of improving installation work efficiency of a rear bumper finisher, by preventing hanging-down deformation, without reinforcing the rear bumper finisher. <P>SOLUTION: Since a load of an exhaust finisher 10 can be eliminated from acting on the rear bumper finisher 6 by supporting the exhaust finisher 10 by a bumper reinforcement 5 via an installation means 11 composed of a hinge member 12 rotatably installed in the vertical direction on the bumper reinforcement 5 and an elastic body 13 interposed between the exhaust finisher 10 and the bumper reinforcement 5, the installation work efficiency of the rear bumper finisher 6 can be improved by preventing the rear bumper finisher 6 molded by a synthetic resin material from causing the hanging-down deformation in a natural state. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mounting structure for an exhaust finisher that covers and shields the outer periphery of a tail pipe provided at the end of an exhaust system of an automobile.

  A cylindrical exhaust finisher that covers the outer periphery of the tail pipe provided at the end of the exhaust system is fitted with a small-diameter portion formed at the rear end thereof in an annular member fitted into an opening provided in the rear bumper fascia, A large-diameter portion formed at the front end portion covers the outer peripheral portion of the exhaust port at the rear of the tail pipe with a predetermined interval.

(For example, refer to Patent Document 1).
JP 2004-308551 A (Pages 4, 5 and FIGS. 2 and 3)

  However, in such a conventional exhaust finisher mounting structure, the exhaust bumper is fixedly fitted to the opening of the rear bumper fascia via an annular member, and the exhaust finisher is formed of a metal which is a heat-resistant material. On the other hand, the bumper fascia is made of a synthetic resin material and has low rigidity. As a result, the mounting workability of the rear bumper fascia deteriorates.

  In order to prevent the rear bumper fascia from hanging down, it is only necessary to reinforce the rear bumper fascia. However, this increases the weight.

  Therefore, the present invention provides an exhaust finisher mounting structure that can prevent the hanging deformation without reinforcing the rear bumper fascia and improve the mounting workability of the rear bumper fascia.

  In the present invention, the tail pipe at the end of the exhaust system is disposed in the vicinity of the front of the rear bumper fascia, and the exhaust finisher that covers the outer periphery of the tail pipe at a predetermined interval is disposed at the rear end of the tail pipe. The most important feature of the structure is that the exhaust finisher is supported by a vehicle body structural member via an attachment means.

  According to the present invention, the exhaust finisher, which is a heavy object, is supported by the vehicle body structural member, so that the load of the exhaust finisher does not act on the rear bumper fascia, so the rear bumper fascia formed of a synthetic resin material is reinforced. Without sagging deformation in its natural state.

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

  1 to 5 show an embodiment of an exhaust finisher mounting structure according to the present invention, FIG. 1 is a perspective view of a rear portion of a vehicle body provided with the exhaust finisher, and FIG. 2 is an exhaust finisher at the time of completion of mounting a rear bumper facer. FIG. 3 is an exploded perspective view of a mounting portion of the exhaust finisher, FIG. 4 is a cross-sectional view of the exhaust finisher mounted state, and FIG. 5 is a cross-sectional view of the exhaust finisher during the mounting of the rear bumper facer.

  The exhaust finisher mounting structure of the present embodiment is applied to a vehicle 1 in which exhaust gas is discharged from an opening 3 formed in a rear bumper 2 as shown in FIG. 1, and the exhaust finisher 10 has the opening described above. It arrange | positions at the inner periphery of the part 3, and heats exhaust gas heat.

  As shown in FIG. 2, the rear bumper 2 is provided with a bumper reinforcement 5 coupled to the vehicle body skeleton member 4, and a rear bumper serving as an exterior material by interposing an energy absorbing material outside the figure in the bumper lane force 5. A facer 6 is attached, and the opening 3 is formed in the rear bumper facer 6.

  As shown in FIG. 1, the opening 3 is formed in an inverted U shape with a lower side notched at the bottom of the rear bumper fascia 6, and the opening 3 is formed by left and right side surfaces 3a, 3b and a ceiling surface 3c. The exhaust finisher 10 formed in a cylindrical shape having a rectangular cross section is disposed inside the opening 3 surrounded by the both side surfaces 3a and 3b and the ceiling surface 3c.

  The exhaust finisher 10 is formed of a heat-shielding member such as metal and covers the outer periphery of the rear end portion of the tail pipe 20 that discharges exhaust gas at a predetermined interval as shown in FIG. In addition, the exhaust gas discharged from the muffler 21 is discharged from the rear end opening 20a of the tail pipe 20 via the inside of the exhaust finisher 10.

  In the present embodiment, the tail pipe 20 is a twin type in which a pair is arranged on the left and right sides. As shown in FIG. 1, the rear bumper fascia 2 has openings 3 on both sides in the vehicle width direction. An exhaust finisher 10 is disposed in the opening 3.

  Here, in the present embodiment, as shown in FIG. 2, the exhaust finisher 10 is supported by a bumper reinforcement 5 as a vehicle body structural member via an attachment means 11.

  As shown in FIG. 3, the attachment means 11 includes a hinge member 12 in which the rear portion of the exhaust finisher 10 is attached to the lower surface of the bumper reinforcement 5 so as to be pivotable in the vertical direction, and the exhaust finisher in front of the hinge member 12. 10 and an elastic body 13 interposed between the upper surface of the bumper reinforcement 5 and the lower surface of the bumper reinforcement 5.

  The hinge member 12 includes a first bearing piece 12a coupled to the rear end portion of the upper surface 10a of the exhaust finisher 10, a second bearing piece 12b coupled to the rear end portion of the lower surface 5a of the bumper reinforcement 5, and And a pin 12c for connecting the first and second bearing pieces 12a and 12b in a rotatable manner.

  Further, the first bearing piece 12a is formed in a U shape by bending both ends upward, and a pair of the second bearing piece 12b is formed in an L shape. The pair of hanging portions 12b 'of the second bearing pieces 12b are sandwiched between the rising portions 12a' at both ends of the first bearing piece 12a, and the pins 12c are interposed between the rising portions 12a 'and the hanging portions 12b'. Penetrated.

  The elastic body 13 is formed in a rectangular parallelepiped shape with a block body such as rubber, and an attachment piece 13 a provided at the upper end is coupled to the front end portion of the lower surface 5 a of the bumper reinforcement 5.

  Accordingly, the exhaust finisher 10 can be rotated in the vertical direction around the hinge member 12 at the rear end thereof, and the upper surface 10a comes into contact with the elastic body 13 in the substantially horizontal state of the exhaust finisher 10. ing. A notch 3d for arranging the attachment means 11 is formed on the ceiling surface 3c of the opening 3.

  As shown in FIG. 3, a work hole 7 for attaching the second bearing piece 12 b and the elastic body 13 is formed on the upper surface 5 b of the bumper reinforcement 5.

  Further, in the present embodiment, when the rear bumper facer 6 is attached between the exhaust finisher 10 and the rear bumper facer 6, the exhaust finisher 10 is rotated with a predetermined compression force applied to the elastic body 13. A guide portion 14 for correcting the position is provided.

  That is, the predetermined rotation position is a state in which the exhaust finisher 10 is in a substantially horizontal state as shown in FIG. 2 and its upper surface 10a is in contact with the elastic body 13, and the guide portion 14 is shown in FIGS. As shown in FIG. 4, a shelf 15 integrally projecting from the left and right side surfaces 3a, 3b of the opening 3 formed in the rear bumper facer 6 and an L-shaped cross section attached to both side surfaces 10b, 10c of the exhaust finisher 10 Rail 16.

  The shelf 15 and the rail 16 are arranged at positions corresponding to each other in the normal mounting state of the exhaust finisher 10, and are stabilized in a state where the shelf 15 is located on the lower surface of the rail 16 and in surface contact with each other. The

  That is, in the mounting structure of the exhaust finisher 10 of the present embodiment, the second bearing piece 12b and the elastic body 13 are previously mounted on the lower surface 5a of the bumper reinforcement 5, and before the rear bumper facer 6 is mounted, The first bearing piece 12a is connected to the two bearing pieces 12b via the pins 12c, and the sub-assembly is brought into a state where the exhaust finisher 10 is hung on the lower surface 5a of the bumper reinforcement 5 via the hinge member 12 as shown in FIG. To do.

  In this sub-assembled state, the exhaust finisher 10 has its front end turned downward by its own weight, and the rear bumper facer 6 is attached in this state.

  At the stage of attaching the rear bumper fascia 6, as shown in FIG. 5, the shelf 15 is inserted into the lower surface of the inclined rail 16, and the progress of attaching the rear bumper fascia 6, that is, pushing the rear bumper fascia 6 forward. Along with this, the shelf 15 pushes up the rail 16, and accordingly, the front end of the exhaust finisher 10 is rotated upward about the hinge member 12.

  When the installation of the rear bumper fascia 6 is completed, the rail 16 is pushed up together with the exhaust finisher 10 in a substantially horizontal state as shown in FIG. 2, and the upper surface 10a of the exhaust finisher 10 is pressed against the elastic body 13 in this state. It comes into contact with force.

  With the above structure, according to the mounting structure of the exhaust finisher 10 of the present embodiment, the heavy exhaust finisher 10 formed of a heat shielding member such as metal is supported by the rear bumper reinforcement 5 via the mounting means 11. Therefore, the load of the exhaust finisher 10 can be supported by the bumper reinforcement 5, and therefore, the load of the exhaust finisher 10 does not act on the rear bumper facer 6. For this reason, it is possible to prevent the rear bumper facer 6 formed of a synthetic resin material from being drooped and deformed in a natural state, and to improve the workability of mounting the rear bumper facer 6.

  The attachment means 11 includes a hinge member 12 and an elastic body 13. The hinge member 12 attaches the rear portion of the exhaust finisher 10 to the bumper reinforcement 5 so as to be rotatable in the vertical direction. Since it is interposed between the upper surface of the exhaust finisher 10 and the lower surface of the bumper reinforcement 5 in front of the hinge member 12, a series of exhaust system tubes including the tail pipe 20 and the muffler 21 are lifted upward by road surface interference or the like. When the tail pipe 20 comes into contact with the exhaust finisher 10, the exhaust finisher 10 pivots upward about the rear hinge member 12 to release the load, and the impact at that time is absorbed by the elastic body 13. The exhaust system tube and exhaust It is possible to prevent the finisher 10 may be damaged.

  Further, a guide portion 14 is provided between the exhaust finisher 10 and the rear bumper facer 6, and when the rear bumper facer 6 is attached, the exhaust finisher 10 is placed in a predetermined rotational position while applying a predetermined compressive force to the elastic body 13. Since it can be corrected, the exhaust finisher 10 can be positioned at a predetermined position simultaneously with the installation of the rear bumper facer 6, so that the workability of assembling the exhaust finisher 10 can be improved.

  By the way, the exhaust finisher mounting structure of the present invention has been described by taking the above embodiment as an example. However, the present invention is not limited to this embodiment, and various other embodiments can be adopted without departing from the gist of the present invention. .

The perspective view of the vehicle body rear part in which the exhaust finisher which shows one Embodiment of this invention was provided. FIG. 3 is a cross-sectional view of the exhaust finisher when the rear bumper facer is completely attached, showing an embodiment of the present invention. The disassembled perspective view of the attachment part of the exhaust finisher which shows one Embodiment of this invention. The cross-sectional view of the installation state of the exhaust finisher showing one embodiment of the present invention. FIG. 3 is a cross-sectional view of the exhaust finisher in the middle of mounting the rear bumper facer showing one embodiment of the present invention.

Explanation of symbols

1 Vehicle 2 Rear Bumper 3 Opening 5 Bumper Reinforce (Body Structure Member)
6 Rear bumper fascia 10 Exhaust finisher 11 Mounting means 12 Hinge member 13 Elastic body 14 Guide part 20 Tail pipe

Claims (3)

In the structure in which the tail pipe at the end of the exhaust system is arranged in the vicinity of the rear bumper fascia, and the exhaust finisher that covers the outer periphery of the tail pipe at a required interval is disposed at the rear end of the tail pipe.
An exhaust finisher mounting structure, wherein the exhaust finisher is supported by a vehicle body structural member via mounting means.   The attachment means includes a hinge member in which a rear portion of the exhaust finisher is attached to the vehicle body structural member, and an elastic body interposed between the upper surface of the exhaust finisher and the lower surface of the vehicle body structural member in front of the hinge member. 2. The exhaust finisher mounting structure according to claim 1, wherein the finisher is mounted so as to be movable in the vertical direction. A guide part is provided between the exhaust finisher and the rear bumper fascia for correcting the exhaust finisher to a predetermined rotational position while applying a predetermined compressive force to the elastic body when the rear bumper fascia is attached. Item 3. An exhaust finisher mounting structure according to Item 2.

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