JPH0743923U - Bumper face mounting structure - Google Patents

Abstract

(57) [Abstract] [Purpose] When attaching a bumper face to a vehicle body side member, even if the receiving surface of the vehicle body side member has deformation such as waviness, it is possible to suppress surface runout of the bumper face main body in the attached state. It is an object of the present invention to provide a bumper face mounting structure capable of performing. A bumper face mounting structure for mounting a bumper face to a vehicle body side member, wherein a first mounting surface fixed to the vehicle body side member is provided on an upper portion of the bumper face, the first mounting surface and the bumper face. A second mounting surface that is located between the main body portion and formed at a predetermined angle with respect to the first mounting surface, and a corner portion that is formed by the first mounting surface and the second mounting surface are provided. On the other hand, the vehicle body-side member is provided with a receiving surface for fixing the first mounting surface and an edge portion that is continuous with the receiving surface at a predetermined angle, and the first mounting surface of the bumper face is the corner portion. Is attached to the receiving surface of the vehicle body side member in a state in which the inner side of the body contacts the outer side of the edge portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bumper face attachment structure for attaching a bumper face to a vehicle body side member.

[0002]

[Prior art]

 As is well known, when mounting a bumper of an automobile on a vehicle body, the bumper reinforcement constituting the reinforcing member of the bumper is generally fixed to a frame member in the front-rear direction of the vehicle body at the front portion of the bumper, while the bumper reinforcement of the bumper is fixed. It is attached by fixing the upper part of the bumper face constituting the surface to a vehicle body side member extending in the vehicle width direction. When mounting the upper part of the bumper face to the vehicle body side member, it is common to provide a flat mounting surface on the bumper face side and fix it with the mounting surface facing the flat part of the vehicle body side member. (See, for example, the official bulletin No. 60-66559).

[0003]

[Problems to be solved by the device]

 By the way, the vehicle body side member is usually formed by combining a panel member having a predetermined shape obtained by press-forming a plate material, and the vehicle body side member is a flat surface as a receiving surface facing the mounting surface of the bumper face. In the case of providing the portion, in general, the flat portion is likely to be deformed such as waviness, and it is difficult to obtain sufficient plane accuracy (flatness) over the entire length in the vehicle width direction. That is, when a plate material is pressed into a panel material of a predetermined shape, the corners or edges where the flat surfaces intersect at an angle are strongly constrained by the corners of the mold during molding, and after molding Since the rigidity at the point is also high, it is possible to maintain the linearity with high accuracy, but in the case of a flat surface, the wider the width and the longer the length, the more unavoidably the deformation such as waviness occurs. .

Therefore, as shown in FIG. 9, for example, when the mounting surface 52a of the bumper face 52 is fixed so as to face the flat surface portion 55a (receiving surface) of the vehicle body side member 55, the mounting surface 52a is It is fixed along the receiving surface 55a of 55, that is, in a state in which the receiving surface 55a is deformed and distorted in response to undulations or the like. Therefore, in the main body portion of the bumper face 52 which is continuous with the mounting surface 52a, as shown by a broken line curve in FIG. 9, a deflection (so-called surface deflection) occurs depending on the deformation (distortion) state of the mounting surface 52a. There was a problem that the appearance was spoiled. In particular, in the case of a rear bumper, the lower end of the trunk lid 53 is located above the bumper face 52, and the gap dimension K ′ between the lower end of the trunk lid 53 and the main body of the bumper face 52. Is not constant in the vehicle width direction, and the above-mentioned problem of appearance becomes more noticeable.

The present invention has been made in view of the above problems, and when the bumper face is attached to the vehicle body side member, even when the receiving surface of the vehicle body side member is deformed such as undulation, An object of the present invention is to provide a bumper face mounting structure capable of suppressing the surface runout of the bumper face main body.

[0006]

[Means for Solving the Problems]

 Therefore, in the invention, in the mounting structure of the bumper face for mounting the bumper face to the vehicle body side member, the first mounting surface fixed to the vehicle body side member and the first mounting surface are provided on the upper part of the bumper face. And a bumper face body portion, and a corner portion formed by a second mounting surface formed at a predetermined angle with respect to the first mounting surface, and the first mounting surface and the second mounting surface. On the other hand, the vehicle body side member is provided with a receiving surface for fixing the first mounting surface and an edge portion at a predetermined angle continuous to the receiving surface, and the first mounting surface of the bumper face is The inside of the corner portion is attached to the outside of the edge portion and is attached to the receiving surface of the vehicle body side member.

[0007]

According to the present invention, the first mounting surface of the bumper face is mounted on the receiving surface of the vehicle body side member with the second mounting surface in contact with the edge portion. Therefore, even if the receiving surface of the vehicle body side member is deformed due to waviness or the like, and the first mounting surface is mounted in a distorted state, it is not secured between the first mounting surface and the main body of the bumper face. The deformation of the bumper face main body portion is suppressed by abutting and regulating the positioned second mounting surface to the edge portion having high shape accuracy. That is, it is possible to effectively suppress the surface runout of the bumper face main body portion in the mounted state, and prevent the appearance from being deteriorated.

[0008]

【Example】

 An embodiment of the present invention will be described below in detail with reference to the accompanying drawings when it is applied to a rear bumper of an automobile, for example. As shown in FIG. 1, a rear bumper 1 whose surface is constituted by a bumper face 2 made of, for example, a synthetic resin, is attached to the rear portion of the vehicle body of the present embodiment. As shown in FIG. 2, the bumper face 2 includes a front portion 2a that covers a lower portion of a rear end surface of a vehicle body, and side portions 2b (which are bent forward from both left and right ends of the front portion 2a to cover a lower portion of a vehicle body side surface). (A bumper side portion), and a trunk lid 13 for opening and closing the luggage compartment is located above the front portion 2a.

As shown in FIG. 3, the front portion of the rear bumper 1 has a frame member (not shown) in the front-rear direction on the vehicle body side via a bumper reinforcement 3 arranged on the back side of the bumper face 2. ), The left and right side portions of the bumper 1 are attached by fixing the bumper side portions 2b to the rear fender panel 11 on the vehicle body side with the flange portions 2f (see FIG. 2). An energy absorber 4 made of urethane resin, for example, is disposed between the bumper face 2 and the bumper reinforcement 3. On the other hand, on the vehicle body side, a cross member 15 extending in the vehicle width direction is arranged at the rear end of the vehicle body. The cross member 15 joins an outer panel 16 and an inner panel 17 obtained by press-forming a steel plate. And has a closed cross section. The latch 12 for locking the lock striker 14 of the trunk lid 13 is fixed to the inner panel 17 of the cross member 15, while the outer panel 16 is provided with an upper portion of the front portion 2a of the bumper face 2 described above. Is fixed.

That is, as shown in detail in FIG. 4, a first mounting surface 6a having a free end at the upper edge of the front portion 2a and fixed to the vehicle body is provided above the front portion 2a of the bumper face 2. And a second mounting surface 6b located between the first mounting surface 6a and the main body of the bumper face 2 and formed at a predetermined angle with respect to the first mounting surface 6a. The mounting portion 6 is composed of 6a and 6b and a corner portion 6c formed between them and having a predetermined angle. On the other hand, the outer panel 16 of the cross member 15 is provided with a receiving surface 16a (first receiving surface) for fixing the first mounting surface 6a and an edge portion 16c continuous with the first receiving surface 16a at a predetermined angle. Has been. The edge portion 16c is formed by the first receiving surface 16a and the second receiving surface 16b adjacent to the first receiving surface 16a, and the inner angle thereof is equal to or slightly greater than the inner angle of the corner portion 6c on the bumper face 2 side. Smaller, more preferably equal.

When fixing the upper portion of the front portion 2a of the bumper face 2 to the vehicle body side, the inside of the corner portion 6c of the bumper face 2 is brought into contact with the outside of the edge portion 16c of the outer panel 16. Then, the bolt member 19 is screwed and fastened to the nut member 18 fixed to the back surface side of the outer panel 16, so that the first mounting surface 6a of the bumper face 2 becomes the first receiving surface 16a on the cross member 15 side. It is designed to be fixed.

After tightening the bolt members 19, ..., 19, as shown in FIG. 5, the mounting portion of the bumper face 2 to the cross member 15 is covered with a decorative cover 20. The clip member 8 is attached to the cross member 15. That is, in the upper portion of the front portion of the bumper face 2 (that is, the mounting portion 6), cutout portions 7, ..., 7 opening to the upper edge side are formed between the fixing portions by the bolt members 19 ,. (See FIG. 2) On the other hand, on the back surface side of the cover 20, one side is opened and a groove portion 21b along the longitudinal direction of the cover 20 is provided at a portion corresponding to each of the cutouts 7, as shown in FIG. The box-shaped holder portions 21 each having are formed. Then, the head portion 8a of the clip member 8 is inserted between the holder portion 21 and the main body rear surface of the cover 20, and the shaft portion 8b of the clip member 8 is fitted into the groove portion 21b of the holder portion 21 for positioning. (See Figure 7). In this way, each clip member 8 is mounted on the back surface side of the cover 20, and then the tip locking portion 8c of each clip member 8 is fitted and locked in each mounting hole 15c of the cross member 15. Thus, the cover 20 is attached to the cross member 15.

As described above, according to the present embodiment, the first mounting surface 6a of the bumper face 2 is crossed with the inside of the corner 6c abutting the outside of the edge 16c. Since it is attached to the first receiving surface 16a of the member 15, even if the first receiving surface 16a is deformed due to waviness or the like and the first attaching surface 6a is attached in a distorted state. The second mounting surface 6b located between the first mounting surface 6a and the body portion of the bumper face 2 comes into contact with and is regulated by the edge portion 16c having a high shape accuracy, whereby the body of the bumper face 2 is regulated. The deformation of the part is suppressed. That is, it is possible to effectively suppress the surface wobbling of the main body portion of the bumper face 2 in the mounted state, and prevent the appearance from being deteriorated. Further, in particular, it is possible to reduce variation in the vehicle width direction with respect to the gap dimension K (see FIG. 3) between the lower end portion of the trunk lid 13 and the main body portion of the bumper face 2, and the trunk portion at the rear end of the vehicle body can be reduced. It is possible to prevent the deterioration of appearance.

In the above embodiment, the decorative cover 20 which is a separate body is used to cover the mounting portion of the bumper face 2 to the cross member 15. However, as shown in FIG. In the upper mounting portion of the front face portion 2a, the upper portion of the second mounting surface 6b is extended upward from the corner portion 6c to integrally form the cover portion 30. The receiving surface 16a and the first mounting surface 6a of the bumper face 2 may be covered. In this case, when the bolt member 19 is screwed into the nut member 18, the cover member 30 is opened and the bolt member 19 is inserted to perform the tightening work as shown by the two-dot chain line in FIG. After that, the cover member 30 can be closed to cover the mounting portion.

[Brief description of drawings]

FIG. 1 is a perspective view of a vehicle body rear portion of an automobile according to an embodiment of the present invention.

FIG. 2 is a perspective view of a rear bumper of the automobile.

3 is a vertical cross-sectional explanatory view in the AA direction of FIG.

FIG. 4 is an enlarged vertical cross-sectional explanatory view of a bumper face mounting portion according to the above embodiment.

FIG. 5 is an enlarged vertical cross-sectional explanatory view of a cover mounting portion according to the above embodiment.

FIG. 6 is a perspective view of the back side of the cover.

FIG. 7 is an explanatory plan view of the back side of the cover on which a clip member is attached.

FIG. 8 is an enlarged vertical cross-sectional explanatory view of a bumper face mounting portion according to a modified example of the above embodiment.

FIG. 9 is an explanatory longitudinal sectional view showing a bumper face mounting structure according to a conventional example.

[Explanation of symbols]

 2 ... Bumper face 6 ... Mounting portion 6a ... First mounting surface 6b ... Second mounting surface 6c ... Corner portion 15 ... Cross member 16 ... Outer panel 16a ... First receiving surface 16c ... Edge portion

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Nobuyuki Nakayama No.3 Shinchi Fuchu-cho, Aki-gun, Hiroshima Prefecture Mazda Co., Ltd. (72) Takayuki Nakamae No.3 Shinchi, Fuchu-cho, Aki-gun, Hiroshima Prefecture Mazda Stock In the company

Claims (1)

[Scope of utility model registration request] 1. A bumper face mounting structure for mounting a bumper face to a vehicle body side member, wherein a first mounting surface fixed to the vehicle body side member is provided on an upper portion of the bumper face. A second mounting surface located between the bumper face main body portion and formed at a predetermined angle with respect to the first mounting surface; and a corner portion formed by the first mounting surface and the second mounting surface. On the other hand, the vehicle-body-side member is provided with a receiving surface for fixing the first mounting surface and an edge portion at a predetermined angle continuous with the receiving surface, and the first mounting surface of the bumper face is A bumper face mounting structure, wherein the inside of a corner portion is attached to the outside of the edge portion and is attached to the receiving surface of the vehicle body side member.