JP2006035870A - Exterior part of vehicle and its mounting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an exterior part integrally constituted by molding and capable of securing strength of a part of low strength, and to provide its mounting method. <P>SOLUTION: A reinforced part 20 is removed by cutting a to-be-cut part 27 after fixing to the front bumper 30 a front spoiler 10 (exterior part) integrally forming with synthetic resin a corner part 11 (high strength part) interposingly mounted to a front wall 31 of a side surface design part 303 going around left and right side surfaces from a front design part 301 of a front bumper 30, a center part 13 (low strength part) continued to the left and right corner parts 11 and an upper surface of which is made contact with and fastened to a lower wall 33 of the front bumper 30 and a reinforced part 20 connected to the center part 13 and the both corner parts 11 through the to-be-cut part 27 . <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle exterior component and a mounting method thereof, and more particularly to a vehicle exterior component including a pair of high-strength portions and a low-strength portion that interconnects both high-strength portions and a mounting method thereof.

From the viewpoint of vehicle design or running performance, it is widely practiced to install an air spoiler on the front bumper and rear bumper as exterior parts, or a mudguard on the side frame on the side of the vehicle.
As an example of an air spoiler attached to the front bumper, as shown in FIG. 7, it overlaps with the side surface of the front bumper and wraps around to the left and right, connecting the high strength portion 911 having a large cross section and high strength, and the left and right high strength portions 911, There is an air spoiler 910 made of a synthetic resin that includes a low-strength portion 913 having a small cross section that contacts the lower surface of the front bumper.

  Further, as an example of a mudguard attached to the left and right side frames of the vehicle body, as shown in FIG. 8, it is attached between the rear end of the front wheel house and the front end of the rear wheel house, and the cross section is the largest at both ends and is approximately the center in the front-rear direction. There is a mudguard 810 made of a synthetic resin that includes two high-strength portions 811 having a triangular shape and a low-strength portion 813 in which the vertices of the triangles are abutted so that the cross-section becomes the smallest at the portion.

When the entire exterior part having a high-strength part with a large cross section and a low-strength part with an extremely small cross section is integrally formed as described above, when attaching the exterior part to a vehicle body, If lifted by a person, there is a risk of deformation or damage at the low-strength part, so it is necessary for two workers to tighten along the vehicle body while supporting the high-strength part, resulting in poor workability .
Therefore, conventionally, in order to eliminate this two-person operation, as shown in FIG. 9, the air spoiler is divided at a substantially central portion of the low-strength portion 913, and one high-strength portion 911 and half of the low-strength portion are integrated. It was composed of two substantially symmetrical left and right molded parts, and these were separately attached to the vehicle body, and when attached, the ends of the left and right low strength portions 913 were joined.

Japanese Patent Application Laid-Open No. 10-138960 (hereinafter referred to as “Patent Document 1”) and Japanese Patent Application Laid-Open No. 9-295592 (hereinafter referred to as “Patent Document 2”) are configured by dividing an exterior part into a plurality of parts. .)
Japanese Patent Laid-Open No. 10-138960 Japanese Patent Laid-Open No. 9-295592

  However, in the case of being divided into two parts as described above, there is a problem that, as shown in FIG.

  Accordingly, an object of the present invention is to provide an exterior part having a good appearance and good workability, and a method for attaching the exterior part, in order to solve such a problem.

The invention according to claim 1 is an exterior part of a vehicle that is integrally formed of a synthetic resin and includes a pair of high-strength portions and a low-strength portion that interconnects both high-strength portions. And a reinforcing part that is removed after the high-strength part is fixed to the vehicle body.
According to the present invention, since both the high-strength portion and the low-strength portion are integrally formed, a joining line as in the case of division does not appear and the appearance is good. In addition, since both the high strength portions are connected by the low strength portion and the reinforcement portion, when a force for displacing the positional relationship between the two high strength members is applied, this force is distributed to the low strength portion and the reinforcement portion. The low strength portion is prevented from being deformed. Therefore, when attaching to the vehicle body, it is not necessary to work in consideration of the deformation of the low-strength portion, so workability is good. Moreover, after fixing to a vehicle body, it can be set as an expected design shape by removing a reinforcement part.

The invention according to claim 2 is the vehicle exterior part according to claim 1, wherein the reinforcing portion is connected to the high-strength portion via an easily-scheduled cutting portion, and the cutting is scheduled. This is an exterior part of a vehicle in which the reinforcing part can be removed by cutting the part.
According to the present invention, since the high-strength portion and the reinforcing portion are connected via the scheduled cutting portion, the cutting planned portion can be easily cut after being fixed to the vehicle body. The reinforcing part can be easily removed.

The invention according to claim 3 is the vehicle exterior component according to claim 1 or 2, wherein the reinforcing portion is connected to the low-strength portion.
According to the present invention, since the reinforcing portion is also connected to the low strength portion, the forces transmitted to the low strength portion and the reinforcing portion can be efficiently distributed to each other.

The invention according to claim 4 is the exterior part of the vehicle according to claim 3, wherein the reinforcing portion is connected to the low-strength portion via an easily cuttable cutting portion. And an exterior part for a vehicle configured to be able to remove the reinforcing portion by cutting a planned cutting portion between the reinforcing portion and the high-strength portion.
According to the present invention, after fixing the exterior part to the vehicle body, the planned cutting part can be easily cut, and the reinforcing part can be easily removed by cutting.

The invention according to claim 5 is the mounting method of the exterior part of the vehicle according to any one of claims 1 to 4, wherein the reinforcing portion is removed after the high-strength portion is fixed to the vehicle body. This is a mounting method for exterior parts of a vehicle.
According to the present invention, when the exterior part is attached to the vehicle body, the low-strength part is prevented from being deformed by the reinforcement part, so that the workability is good, and after the exterior part is attached, the reinforcement part is removed. The desired design shape can be achieved.

  ADVANTAGE OF THE INVENTION According to this invention, the attachment workability | operativity of the exterior components of a vehicle can be improved, and appearance can be improved.

Next, an embodiment of a vehicle exterior part and its mounting method according to the present invention will be described with reference to the drawings. In this embodiment, the present invention is applied to a front spoiler attached to a front bumper.
Here, FIG. 1 is a perspective view showing a front bumper and a front spoiler, FIG. 2 is a sectional view of a high strength portion of the front spoiler, and FIG. 3 is a sectional view of a low strength portion.

The front bumper 30 includes a front design portion 301 in front of the vehicle and a side design portion 303 that is connected to the left and right of the front design portion 301 and wraps around the side surface. The front design portion 301 and the side design portion 303 are arranged in the vertical direction. The cross section is formed to be substantially L-shaped from the rising front wall 31 and the lower wall 33 connected via an inclined surface 311 inclined rearward at the lower portion of the front wall 31. As shown in FIG. 1, the front spoiler 10 is a side design portion 303 of the front bumper 30, and is connected to the corner portions 11 and 11 that are attached so as to overlap the front wall 31, and the left and right corner portions 11 and 11. From the center part 13 which the upper surface abuts on the lower wall 33 of the front bumper 30 and is tightened, and the reinforcing part 20 connected to the center part 13 and the corner parts 11 and 11 via the scheduled cutting part 27 Thus, the synthetic resin material is injection-molded and integrally molded.
The corner portions 11 and 11 correspond to a “high strength portion” in the claims, and the center portion 13 corresponds to a “low strength portion”.

As shown in FIG. 2, the corner portion 11 overlaps with the front wall 31 of the side design portion 303 of the front bumper 30 and swells outward and rises upward, and a bottom continuous from the lower end of the design wall 111. The lower wall 113 is formed below the lower wall 33 of the front bumper 30 and has a lower wall 135 (see FIG. 3), which will be described later. Are formed to be continuous with the lower wall 135 at substantially the same height. Therefore, the corner portion 11 is a high-strength portion having a larger cross section, larger weight and higher strength than the center portion 13.
In the corner portion 11, a stay member 115 is integrally formed on the surface facing the front bumper 30 on the inner side so as to form a quadrangle with the design wall 111, and the inclined surface 311 of the front bumper 30 faces the design wall 111. The clip nut 60 and the bolt 70 are tightened.

As shown in FIG. 3, the center portion 13 is formed in a substantially U-shaped cross section having an upper wall 131, a front wall 133, and a lower wall 135, and the upper wall 131 is formed on the lower wall 33 of the front bumper 30. The clip nut 60 and the mounting bolt 70 are tightened at a required location.
The front wall 133 protrudes forward from the inclined surface 311 of the front bumper 30, and the intersection of the front wall 133 and the lower wall 135 projects forward from the intersection of the upper wall 131 and the front wall 133, so that the front bumper 30 The inclined surface 311 forms a V shape.
The lower wall 135 continuously extends from the lower portion of the front wall 133 and extends rearward to a position about half the length of the upper wall 131 so that the opening of the U-shaped cross section expands.
Therefore, the center portion 13 is a low-strength portion having a smaller cross-sectional area and smaller strength than the corner portion 11.

As shown in FIG. 1, the reinforcing portion 20 overlaps the full width of the center portion 13 and a part of the corner portion 11 continuous with the center portion 13 in a plan view, and as shown in the perspective view of FIG. It consists of a reinforcing wall 21 that hangs slightly rearward from the rear ends of the lower walls 113 and 135 and a flange 23 that bends backward at the lower end of the reinforcing wall 21.
On the rear surface of the reinforcing wall 21, a rib 25 whose upper end is connected to the lower surface of the upper wall 131 via a vertical cutting scheduled portion 271 of the planned cutting portion 27 described later is the same width as the flange 23 at a right angle to the reinforcing wall 21. A plurality are provided so as to protrude rearward.
Further, a connection piece 29 for maintaining the cross-sectional shape of the upper wall 131 and the lower wall 135 is connected to the lower surface of the upper wall 131 and the upper surface of the lower wall 135 at a position adjacent to the rib 25. Is provided so as to be inclined obliquely rearward, and thereafter the upper part is continuous with the longitudinal cutting scheduled portion 271.

  The planned cutting portion 27 is an upper portion of the rib 25 described above, and a vertical cutting planned portion 271 formed by providing a thin portion between the lower surface of the upper wall 131 and an upper portion of the reinforcing wall 21 provided with the rib 25. Is formed from an extending portion 211 that extends upward over a required width, and a transverse cutting planned portion 273 formed in a thin plate that extends backward on the lower surfaces of the lower walls 135 and 113 to cross-connect.

As shown in FIG. 2, in the connection portion of the reinforcing portion 20 in the corner portion 11, the upper end of the longitudinal cut scheduled portion 271 is connected to the lower surface of the stay member 115 described above, and the connection piece 29 is below the stay member 115. A wall is substituted.
Further, in the general portion where the planned cutting portion 27 is not formed, as shown in FIG. 5, the upper portion of the reinforcing wall 21 is separated from the lower walls 113 and 135.

  Next, a method of attaching the vehicle exterior part (front spoiler) configured as described above will be described. First, the clip nut 60 is engaged in advance with a plurality of mounting holes 1311 provided in the upper wall 131 of the center portion 13 and the stay member 115, and a double-sided tape (not shown) is affixed to the inside of the side wall of the corner portion 11. Keep it.

Then, the front spoiler 10 is brought in from the front lower side of the front bumper 30 toward the upper side of the front bumper 30 and the corner part 11 is moved to the front bumper with the double-sided tape while the upper wall 131 of the center part 13 is applied to the lower surface of the lower wall 33 of the front bumper 30. Stick to the side of 30.
At this time, since the front spoiler 10 is reinforced by the reinforcing portion 20, the front spoiler 10 is less likely to bend or twist and can be operated by a single operator.
Thereafter, the mounting bolt 70 is inserted into the mounting hole 331 from the inside of the front bumper 30, screwed into the clip nut 60 and tightened, and the front spoiler 10 is fixed to the front bumper 30.

After confirming that the front spoiler 10 is securely fixed to the front bumper 30, as shown in FIG. 6, the thin-walled vertical cutting planned portion 271 and the horizontal cutting planned portion 273 are cut with a tool T such as a nipper to cut the front spoiler. The reinforcing portion 20 is removed from 10, and in particular, the thin portion remaining from the tip of the lower wall 135 of the transverse cutting scheduled portion 273 is scraped off with a grinder or the like.
Since the front spoiler 10 is integrally formed, there is no parting line that has occurred because it has been divided conventionally.
The removed reinforcing portion 20 can be reused by recycling the synthetic resin.

In addition, this invention is not limited to the thing of the said embodiment, A various change is possible in the range which does not deviate from the meaning.
For example, in the front spoiler 10 of the present embodiment, the reinforcing portion 20 and the center portion 13 are connected by the six scheduled cutting portions 27 and the corner portion 11 is connected by the one planned cutting portion 27 each and reinforced. However, the present invention is not limited to this, and only both ends of the reinforcing portion may be connected to the corner portion at the planned cutting portion.

1 is an overall perspective view of a front spoiler that is an exterior part of a vehicle according to an embodiment of the present invention. It is sectional drawing which follows the II-II line of FIG. It is sectional drawing which follows the III-III line of FIG. It is a perspective view of the scheduled cutting part provided in the exterior parts of the vehicle concerning one embodiment of the present invention. It is sectional drawing which follows the VV line of FIG. It is sectional drawing corresponding to FIG. 2 which shows the cutting position of the exterior components of the vehicle which concerns on one embodiment of this invention. It is a perspective view of the front spoiler which shows the example of the exterior component of the conventional integrated vehicle. It is a perspective view of the side mudguard which shows the other example of the exterior component of the conventional vehicle. It is a perspective view of the front spoiler which shows the example of the conventional exterior parts of the vehicle divided into two. FIG. 10 is a cross-sectional plan view of a joint portion of a conventional vehicle exterior component shown in FIG. 9.

Explanation of symbols

10 Front spoiler 11 Corner section 13 Center section 13
113, 135 Lower wall 20 Reinforcement part 21 Reinforcement wall 25 Rib 27 Planned cutting part 271 Planned vertical cutting part 273 Planned horizontal cutting part 30 Front bumper

Claims (5)

A vehicle exterior part that is integrally molded with a synthetic resin and includes a pair of high-strength portions and a low-strength portion that interconnects both high-strength portions,
An exterior part for a vehicle, in which both high-strength portions are connected to each other, and a reinforcing portion that is removed after the high-strength portions are fixed to a vehicle body is integrally formed. The vehicle exterior part according to claim 1,
An exterior part of a vehicle in which the reinforcing part is connected to the high-strength part via a cutting scheduled part that can be easily cut, and the reinforcing part can be removed by cutting the scheduled cutting part. The vehicle exterior part according to claim 1 or 2,
A vehicle exterior component in which the reinforcing portion is connected to the low-strength portion. An exterior part of a vehicle according to claim 3,
The reinforcing part is connected to the low-strength part via a cut-to-cut part that is easy to cut, and the cutting part and the planned cutting part between the reinforcing part and the high-strength part are cut. Vehicle exterior parts that can remove the reinforcement. It is the attachment method of the exterior components of the vehicle according to any one of claims 1 to 4,
A method for mounting an exterior part of a vehicle, wherein the reinforcing portion is removed after the high-strength portion is fixed to a vehicle body.

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