JP2002059794A - Front bumper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a front bumper designed to enable enhancement of its rigidity to prevent deformation of the mounting portion of a grill or net mounted to a front bumper body, while at the same time facilitating assembly of the grill or net to the front bumper body, and enabling enhancement of the effect of admitting air, a reduction in number of part items, and enhancement of its appearance, etc. SOLUTION: The front bumper 1 has the grill 5 which is provided with a plurality of fins 11 extending in the longitudinal direction of the vehicle and which is assembled into an opening 4 in the front bumper body 3. The lowermost fin 11a of the grill 5 is disposed to extend rearward of the vehicle body more than do the other fins 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front bumper having a grill or a net attached to an opening of a front bumper body.

[0002]

2. Description of the Related Art A front bumper made of a synthetic resin has been used in the front of a vehicle such as an automobile. FIG. 15 shows a front bumper 50 made of a synthetic resin of this kind. An opening 52 for taking in the traveling wind is formed on the front surface of a main body (front bumper main body) 51 of the front bumper 50. A grill or mesh net 53 having fins corresponding to the opening 52 is attached to the back surface of the front bumper main body 51. In addition,
For example, as shown in FIG. 16, the attachment of the grill or the net 53 to the front bumper main body 51 is performed by using a plurality of fixing pins 55 projecting from the peripheral edge 54 of the opening 52 of the front bumper main body 51. This is achieved by inserting the push nut 57 into each of the fixing pins 55 by inserting the push nut 57 into each of the plurality of pin insertion holes 56. Thus, such a front bumper 50 is shown in FIG.
As shown in FIG. 7, in the vehicle mounted on the vehicle body front portion 58, the traveling wind is sent to the front of a condenser or a radiator (not shown) through the grill or the net 53, and the traveling wind cools the condenser and the radiator. It is configured as follows.

[0003] Japanese Patent Application Laid-Open No. 10-203273 discloses an attachment structure for attaching a net to an opening of a front bumper main body. In the case of this mounting structure, as shown in FIG. 18, a number of projections (insertion claws) 61 provided on the lower surface of the net 60 are connected to the front bumper main body 62.
And a plurality of claws (not shown) provided on the upper surface of the net 60 while being engaged with the holes 63 provided on the net mounting surface.
Is locked to a locking portion (not shown) provided on the net mounting surface of the front bumper main body 62.

[0004]

However, the front bumper 50 formed of a synthetic resin has the following problems. That is, in the front bumper 50 made of synthetic resin, the rigidity of the opening 52 in which the grill or the net 53 and the like are provided is low, and the front bumper body 51 itself as a single piece often deforms. Such a peripheral portion 54 of the opening 52 of the front bumper main body 51 (see FIG. 1)
6), the parts such as the grill and the net 53 are assembled using the screw and the push nut 56 and the like, and only the mounting part of the screw and the push nut 56 is restricted to the shape corresponding to the grill and the net 53 and the like. Therefore, the peripheral portion 54 of the opening 52 of the front bumper main body 51, that is, the attachment portion of the grill or the net 53 may be deformed into a wavy shape as shown by a reference symbol S in FIG. In such a case, since the wavy portion is located at a position where it can be seen from the outside, the front bumper 50
This causes a problem that the overall appearance of the device deteriorates.

The opening 52 of the front bumper body 51
The burr 65 and the gate mark as shown in FIG. 15 and FIG. When these occur, the appearance from the outside deteriorates, and the appearance of the front bumper 50 is impaired. Therefore, in such a case, it is necessary to remove the burrs 65, gate marks, and the like by hand cutting or the like after the molding process. The fact is that the efficiency of is poor.

On the other hand, in the front bumper disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 10-203273, the net 6
0, the end face of the front bumper main body 62 is not visible from the front side thereof, but since the vertical direction of the net 60 (the direction indicated by the arrow K in FIG. 18) is not regulated, the lower end portion 60a of the net 60 is not restricted. It is difficult for the distance between the front side and the lower side 64a of the opening 64 of the front bumper main body 62 (see FIG. 18) to have a regular size, and it is difficult to set the parting width in this portion to the regular size.

The present invention has been made in view of the above circumstances, and an object thereof is to improve rigidity and prevent deformation of a grill or a net attachment portion to a front bumper body. And a front bumper having a structure that can easily assemble a grill or a net to the front bumper main body, and can improve the air guiding effect, reduce the number of parts, and improve the appearance. Is to provide.

[0008]

In order to achieve the above object, according to the present invention, there is provided a front bumper in which a grill provided with a plurality of fins extending in the longitudinal direction of a vehicle body is assembled in an opening of a front bumper body. In this configuration, the lowermost fin of the grill is arranged to extend rearward of the vehicle body with respect to the other fins. Also, the present invention provides a grill having a pair of vertical ribs for wind guide extending toward the rear of the vehicle body on both sides in the vehicle body width direction of the grill body having fins, the one side portion of an opening provided in the front bumper body. In the front bumper, the outer vertical ribs in the vehicle width direction of the pair of vertical ribs are extended upward, and the extended portions are attached to the front bumper body. And Further, the present invention provides a front bumper in which a grill or a net is incorporated in an opening provided in a front bumper main body, wherein a frame portion having a U-shaped cross section or an L-shaped cross section is formed on a periphery of the grill or the net, The grill or the net is assembled to the front bumper main body by inserting the peripheral edge of the opening of the front bumper main body into the frame with the peripheral edge of the opening along the one side surface of the frame of the grill or the net. ing. Further, according to the present invention, a guide flange that is inclined in a direction away from the grill main body or the net main body is provided on the frame portion of the grill or the net.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows an automobile 2 provided with a front bumper 1 according to one embodiment of the present invention. The front bumper 1 is a part made of synthetic resin. As shown in FIGS. 2 and 3, the front bumper 1 includes a front bumper main body 3 made of a synthetic resin integrally molded product having an opening 4 formed at a lower portion of a front surface portion, and an opening of the front bumper main body 3. A lower grille (hereinafter simply referred to as a grill) 5 mounted on the left half of the front plate 4; a license plate mounting plate 6 disposed on the right half of the opening 4 of the front bumper body 3; And a side grille 7 attached to the right half of the license plate mounting plate 6 at the right side. Although not shown, an upper grill is attached to an opening 8 (see FIG. 3) provided in the upper central portion of the front bumper main body 3. Thus, one of these components is assembled to constitute one front bumper 1.

The above-mentioned grill 5 is an integrally molded product made of a synthetic resin, and as shown in FIG. 4, a substantially rectangular frame 10 provided with mounting pieces 9 at a plurality of positions, A plurality of fins (horizontal fins) 11 installed in the vehicle body width direction and extending in the vehicle front-rear direction inside;
A plurality of rows of fins (longitudinal fins) 12 extending vertically in the vehicle body and extending along the vehicle front-back direction inside the vehicle;
A pair of vertical ribs 13a for wind guide, which are integrally formed so as to extend toward the rear side of the vehicle body from the back surfaces of the left and right sides of the frame body 10,
13b. As shown in FIGS. 5 and 6, the lowermost fin 11a of the plurality of fins 11, which is disposed at the lowermost position, is disposed so as to extend more rearward than the other fins 11. . In the present embodiment, the lowermost fin 11a is
The portion extending rearward of the lower side portion is indicated by a reference numeral H in FIG. Further, of the pair of wind guiding vertical ribs 13a and 13b, the wind guiding vertical rib 1 disposed adjacent to the license plate mounting plate 6 is provided.
An extension portion 14 extending upward is integrally formed at the upper end of the vertical rib 13b for wind guide opposite to the side 3a, and a mounting piece 15 is integrally formed with the extension portion 14. .

Here, the structure of the grill 5 will be described in more detail. The grill 5 includes a grill body 70
And an air guide plate 71 attached as a bumper extension, and an air guide plate 72 and a lower end plate 73 attached to one side and lower side of the grill main body 70 are separately formed into an L shape. It has three functions with the character-shaped part 74 (see FIG. 20). That is, in the present embodiment, the vertical ribs 13 a and 13 b for guiding the wind are the frame 10 of the grill 5.
The inside and outside vertical ribs 13a and 13b for wind guiding, and these vertical ribs 13
a, the lowermost fin 1 disposed between the lower ends of 13a and 13b
1a, the U-shaped part whose upper part is opened is a grill 5
Is arranged behind the frame body 10 of FIG.

Further, as shown in FIGS.
A frame portion 16 having a U-shaped cross section is formed on the peripheral portion of.
That is, a U-shaped cross section that is concave toward the rear of the vehicle body at the front portion of the frame 10 of the grill 5 and over the entire upper and lower sides 17a and 17b and the outer side 17c of the frame 10 is provided. A frame 16 is provided. The frame portion 16 having a U-shaped cross section as described above is not provided on the inner side portion 17d of the frame body 10, and the engaging portion of the license plate mounting plate 6 is provided as shown in FIGS. The holding rib 18 is provided only at a position corresponding to 6a. Thus, the peripheral portion 3a of the opening 4 portion of the front bumper body 3
As shown in FIG. 9, the back surface 3b is arranged along one side surface 16a of the frame portion 16 having a U-shaped cross section of the grill 5 and is cut off within the frame portion 16 having a U-shaped cross section of the grill 5. Width 19
The grill 5 is attached to the front bumper body 3 and installed in the opening 8 thereof. In FIG. 8, P is a license plate attached to the license plate attachment plate 6.

Further, as shown in FIGS. 4, 5 and 6, a guide flange 20 which is inclined in a direction away from the grill body is provided on the frame portion 16 having a U-shaped cross section of the grill 5 described above. I have. Note that this flange 20 is attached to the grill 5
The guide surface 20a is for guiding one side of the frame portion 16 having a U-shaped cross section (a surface opposite to the cut-off width 19) 16a. (See FIG. 9). When the grille 5 is assembled to the front bumper main body 3, the peripheral portion 3a is guided by the guide surface 20a of the guide flange 20 so that the side surface 16a of the frame portion 16 of the grille 5 has a U-shaped cross section. The rear surface 3b of the peripheral portion 3a is configured to be abutted (see FIG. 9).

A notch formed by cutting out a part of an appropriate portion (a plurality of portions) of the guide flange 20 and a portion of the frame portion 16 having a U-shaped cross section connected to the guide flange 20 is provided. 22 are formed respectively. In this embodiment, as shown in FIGS. 4 and 7, notches 22 are respectively formed at positions corresponding to the mounting pieces 9 of the grill 5, and the presence of the notches 22 allows the guide flange 20 to be formed. Flexibility is set appropriately.

Further, as shown in FIGS. 6 and 10, a plurality of mounting holes 23 are provided in the frame portion 16 having a U-shaped cross section of the grille 5, and a plurality of mounting holes 23 are formed in the peripheral portion 3a of the opening 4 of the front bumper body 3. The engagement piece 24 corresponding to the mounting hole 23 is integrally formed. When the engaging claws 24 are engaged with the mounting holes 23 of the grill 5 to make the front end face 10a of the frame 10 of the grill 5 a part of the appearance as shown in FIG. If the holding force of the claw 24 is weak, the end of the front bumper main body 3 and the mounting hole 23 of the grill 5 can be seen from the outside, and a wavy shape may be generated therebetween. Also, as shown in FIG.
The same applies to the case where 0 is provided. Therefore, in the present embodiment, as the above-described engaging piece 24, for example, as shown in FIG. 12B, an engaging claw 27 formed at the tip of an elastic protruding piece 26 protruding from the peripheral edge 3a is provided. What has been used (a shape that can be molded with a resin without using a slide-type mold) is used. The engagement piece 24
When it is necessary to increase the holding force by
A protruding piece 28 protruding from the peripheral portion 3a as shown in FIG.
It is also possible to use an engagement piece 24 having an engagement claw 30 obtained by making a U-shaped cut 29 in the groove. However, when the engaging piece 24 having the engaging claw 30 having such a relatively complicated shape is provided, it is necessary to use a sliding mold.

As shown in FIG. 11, a rib 32 is integrally formed on the back surface (the surface opposite to the engaging portion) of the engaging claw 24, and the rib 32 and the frame having a U-shaped cross section are formed. The engagement claw 24 and the mounting hole 23 are formed by an abutting action of the one side surface 16 a of the portion 16.
May be improved.

Thus, the peripheral portion 3a of the opening 4 of the front bumper main body 3 is inserted and arranged in the U-shaped frame portion 16 of the peripheral edge of the grill 5 so that the rear surface 3b of the peripheral portion 3a is formed in the U-shaped cross section. By fitting the plurality of engaging claws 24 of the front bumper main body 3 into the mounting holes 23 of the grill 5 while installing along the one side 16a of the frame 16
The grill 5 is attached to the front bumper main body 3 at a position corresponding to the opening 4. And grill 5
Are attached to the front bumper main body with screws or the like.

When the grille 5 is attached to the front bumper main body 3 in this manner, as shown in FIGS. 5 and 8, a pair of left and right vertical ribs 13a, 1
3b, sponge members 41a, 41b provided at positions corresponding to the left and right sides of the condenser or radiator 40.
It is set so as to be arranged in a state of being pushed into 41b. And these vertical ribs 13a, 13b for wind guide
And a lowermost fin 11a disposed between these lower ends.
Are arranged corresponding to the lower half part on the front side of the condenser or the radiator 40. As shown in FIG. 8, a blind plate 42 is integrally attached to the inner side of the outer vertical rib 13b, and the outer sponge member 41 is formed by the blind plate 42.
b is obscured. Therefore, the front bumper body 3
The outer sponge member 41b located at a relatively shallow position from the opening 4 is invisible from the outside with the eyes α and β shown in FIG.

According to the front bumper 1 configured as described above, the lowermost fin 11a of the plurality of fins 11 of the grill 5 is extended rearward of the vehicle body with respect to the other fins 11 (rear extension shown in FIG. 6). (See section H)
As shown by the solid and broken arrows in FIG. 6, the flange 43a of the cross member 43 of the vehicle body is hidden by the rear extension H of the lowermost fin 11a and becomes invisible from the outside, so that the appearance is improved. . In addition, since the lowermost fin 11a is arranged at a position closer to the condenser or the radiator 40, the effect of guiding air to the condenser or the radiator 40 can be improved. Further, as the lowermost fin 11a is extended, the overall rigidity of the grill 5 can be increased.

Normally, a bumper extension, which is a separate component from the front bumper body 3, is attached to the front bumper body 3 to form a wind guide plate. This wind guide plate is used as an outer wind guide vertical rib 13b on the grill 5. Since they are integrally formed, the number of parts can be reduced, and the extension and, consequently, the rigidity of the grill 5 can be improved. In addition, since the vertical ribs 13a and 13b are integrally formed, the vertical ribs 13a and 13b are disposed in the opening 4 of the front van main body 3 without any gap, so that the wind guiding effect can be improved. That is, in this case, the traveling wind is efficiently introduced toward the condenser or the radiator 40 as shown by arrows M and N in FIG. 8, and the hot wind that has passed through the condenser or the radiator 40 (the arrow R in FIG. 8). The hot air returning in the direction shown in the figure is shielded by the inner vertical guiding ribs 13a, and is prevented from entering the front surface of the condenser or the radiator 40.

On the other hand, conventionally, the inner vertical guiding ribs 13a
Is provided on the front bumper main body 3, but in the present embodiment, as described above, the vertical ribs 13a
Is formed integrally with the frame 10 of the grill 5, there is no gap between the grill 5 and the vertical ribs 13 a for wind guide. It can be made invisible (see line γ in FIG. 8), and the appearance can be improved. further,
The pair of left and right vertical ribs 13a, 13b of the grill 5 and the fin 11a at the lowermost end form a condenser or radiator 40.
Since the lower half of the front surface is substantially U-shaped, the wind guiding effect and the rigidity of the grill 5 can be further improved. Therefore, as the rigidity of the grill 5 as a single item increases, the rigidity of the front bumper main body 3 connected thereto can also be improved.

Further, a U-shaped section 16 is provided at the periphery of the frame of the grille 5, and one side 16 a of the U-shaped section 16 has a periphery 3 at the opening 4 of the front bumper body 3.
Since the rear surface 3b is inserted and arranged along the rear surface 3a, the shape of the opening 4 of the front bumper main body 3 is corrected by the highly rigid U-shaped section 16 so that the opening 4 is deformed. Can be prevented, and the appearance can be improved. In addition, the rigidity of the grill 5 as a single item, and thus the rigidity of the front bumper 3 as a whole, can be improved. Since the U-shaped cross section 16 has a partially open cross-sectional shape, even if the precision of forming the parts of the front bumper body 3 and the grill 5 is poor, the U-shaped cross section 16 has the peripheral portion. There is no such thing that 3a does not fit.

Since the guide flange 20 is provided on the U-shaped section 16 described above, the grill 5 can be easily assembled to the front bumper body 3 using the guide flange 20. In addition to improving the assemblability of the grill 5, the presence of the guide flange 20 can improve the rigidity of the grill 5 as a single item. Further, since the notch portion 22 is provided at an appropriate position of the U-shaped cross section 16 and the guide flange 20, the U-shaped cross section 16 can be given appropriate flexibility, and accordingly, the front bumper body can be provided. The assembly of the grill 5 to the front bumper main body 3 can be performed easily and reliably even if the precision of forming the components of the grill 3 and the grill 5 is poor.

The mounting hole 23 is provided on the periphery of the grill 5, while the peripheral portion 3 of the opening 4 of the front bumper body 3 is provided.
Since the engaging claw 24 that engages with the mounting hole 23 is integrally formed with the grille 5, screws and nuts for attaching the grill 5 to the front bumper body 3 can be omitted, and the number of parts can be reduced. Can be. In addition, the engaging claw 2
4 can be formed into a shape that does not require a sliding mold, and if the engaging claw 24 is formed into such a shape, the mold for the front bumper body 3 should be simplified. And mold costs can be reduced. In addition, by providing the U-shaped frame 16 and the engagement claws 24 together, the holding force of the grill 5 by the engagement claws 24 can be increased. If the rib 32 is provided on the back surface of the engaging claw 24 and the rib 32 is brought into contact with one side 16a of the frame 16 having a U-shaped cross section, the holding force of the grill 5 by the engaging claw 24 is increased. The size of the grill 5 can be further increased, and the backlash of the grill 5 with respect to the front bumper body 3 can be prevented.

Further, according to the front bumper 1 of the present embodiment, the peripheral portion 3 of the opening 4 of the front bumper body 3 is formed.
A frame 16 having a U-shaped cross section is provided on the periphery of the grill 5 so as to cover the burrs and the like, and the mounting holes 23 and the engagement claws 24 generated at the terminal portion of the periphery 3a are difficult to see. Therefore, the overall appearance of the front bumper 1 can be improved. Further, the frame portion 16 having a U-shaped cross section, the guide flange 20, the mounting hole 23, and the engaging claw 2
When the grille 5 is assembled to the front bumper main body 3, the plurality of engaging claws 24 are smoothly arranged on the guide surface 20 a of the guide flange 20 and one side 16 a of the frame 16 when the grille 5 is assembled. , The engagement claws 24 can be securely engaged with the mounting holes 23 even if the grill 5 is not aligned with the front bumper main body 3. Improvement can be achieved.

Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment.
Various modifications and changes are possible based on the technical concept of the present invention. For example, in the above-described embodiment, the grill 5 having the fins 11 is mounted in the opening 4 of the front bumper main body 3. However, when the mesh net is mounted corresponding to the opening 4 of the front bumper main body 3, The present invention can also be applied to the present invention. Further, the frame portion provided on the periphery of the grill or the net is not limited to the U-shaped cross section, and the frame portion 1 having an L-shaped cross section as shown in FIGS.
6 '.

[0028]

According to the first aspect of the present invention, there is provided a front bumper in which a grill provided with a plurality of fins extending in the longitudinal direction of the vehicle body is assembled in an opening of a front bumper main body. Since the fins are extended behind the other fins and are disposed behind the other fins, the presence of the extended lowermost fins can efficiently guide the traveling wind to the front of the condenser or the radiator, It is possible to improve the wind guiding effect. Moreover, since the lowermost fin is extended to the rear side of the vehicle body, this extended portion serves as a blind plate, and components inside the vehicle body disposed below the condenser or the radiator are not visible from the outside. Thus, the appearance (design) at the location where the front bumper is provided can be improved.
Further, as the lowermost fin is extended, the rigidity of the grill alone is increased, so that the rigidity of the grill mounting portion in the front bumper main body can be improved.

According to a second aspect of the present invention, there is provided a grill having a pair of vertical ribs for wind guiding extending toward the rear of the vehicle body on both sides in the vehicle width direction of the grill body having fins. In a front bumper arranged on one side of an opening provided in a main body, of a pair of wind guiding vertical ribs, an outer wind guiding vertical rib in a vehicle width direction is extended upward, and the extended portion is formed. Is a part to be attached to the front bumper body, so the parts conventionally attached as bumper extensions (parts separate from the front bumper body and vertical ribs for wind guiding) for attachment to the front bumper are omitted. And the number of parts can be reduced accordingly. In addition, since the upper portion of the outer vertical ribs for the wind guide is extended upward, this extended portion also serves as a vertical rib for the wind guide,
The wind guiding effect can be further enhanced.

According to a third aspect of the present invention, there is provided a front bumper in which a grill or a net is incorporated in an opening provided in a front bumper main body. By forming a U-shaped frame portion and inserting and arranging the front bumper body in the frame portion with the peripheral portion of the opening of the front bumper main body along the one side surface of the frame portion of the grill or the net, the grill or the net is formed. Since the present invention is assembled to the front bumper main body, the following operation and effect can be obtained. That is, since the rigidity of the grill or the net itself as a single item is increased in accordance with the formation of the U-shaped cross-section at the periphery of the grill or the net, the front to which the highly rigid grill or the net is attached is attached. The rigidity of the bumper body is also increased. Therefore, it is possible to improve the rigidity of the entire front bumper including the grill or the net attached to the front bumper main body. further,
Since the peripheral portion of the opening of the front bumper main body is inserted and disposed in the U-shaped frame portion of the grill or the net having high rigidity, the peripheral portion of the opening of the front bumper main body having a relatively low rigidity is formed by the frame portion. The shape is corrected, so that it is possible to prevent a wavy shape or the like from occurring at the peripheral edge of the opening.

According to a fourth aspect of the present invention, a guide flange is provided in the frame of the grill or the net so as to be inclined in a direction away from the grill main body or the net main body. When assembling to the front bumper main body, a grill or a net can be smoothly guided by the guide flange and inserted and arranged in the U-shaped cross section, so that the assembling workability can be improved. Moreover, the provision of the guide flange further improves the rigidity of the grill or the net as a single unit, and further increases the rigidity of the front bumper to which the grill or the net having the guide flange is attached. Can be achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view of an automobile including a front bumper according to an embodiment of the present invention.

FIG. 2 is an enlarged perspective view showing the above-described front bumper.

FIG. 3 is an exploded perspective view of the above-described front bumper.

FIG. 4 is a perspective view of a grill attached to the front bumper described above.

FIG. 5 is a sectional view taken along line AA in FIG. 4;

FIG. 6 is a sectional view taken along line BB in FIG. 4;

FIG. 7 is a sectional view taken along line CC in FIG. 4;

FIG. 8 is a sectional view taken along line DD in FIG. 4;

FIG. 9 is an enlarged sectional view of a portion indicated by an arrow X in FIG.

FIG. 10 is an enlarged sectional view of a portion indicated by an arrow Y in FIG.

FIG. 11 is a cross-sectional view similar to FIG. 10, showing a modification in which a rib is provided on the peripheral edge of the opening of the front bumper main body.

FIG. 12 shows a mounting hole of the grill and an engaging claw of the front bumper main body, and FIG. 12 (A) is a cross-section showing an engagement state between the mounting hole of the grill and an engaging claw of the front bumper main body. FIG. 12 (B) is an exploded perspective view showing a state in which the engaging claws of the front bumper main body are engaged with the mounting holes of the grill, and FIG.
FIG. 12C shows another example of the mounting hole and the engagement claw.
It is an exploded perspective view similar to.

FIG. 13 is a cross-sectional view similar to FIG. 12A, showing a modification of an engagement portion between a mounting hole of a grill and an engagement claw of a front bumper main body.

14A and 14B show a modified example of an arrangement relationship between a peripheral portion of an opening of a front bumper main body and a peripheral portion of a grill, and FIG. 14A shows a general portion in which an engaging claw and a mounting hole are not provided; 14B is a cross-sectional view of the engaging portion between the engaging claw and the mounting hole.

FIG. 15 is a front view for explaining a conventional front bumper, showing a state where a net or a grill is attached to an opening of a front bumper main body.

FIG. 16 is an enlarged sectional view taken along line EE in FIG. 15;

FIG. 17 is an exploded perspective view showing a conventional synthetic resin front bumper and a front part of a vehicle body.

FIG. 18 is a cross-sectional view showing a state in which protrusions provided on the lower surface of the net (parts corresponding to the grill) are engaged with holes provided on the net mounting surface of the front bumper.

FIG. 19 is a cross-sectional view showing, in an enlarged manner, a terminal portion around an opening edge of the front bumper main body.

FIG. 20 is an exploded perspective view schematically showing a configuration of a grill or a net assembled in correspondence with an opening of a front bumper main body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front bumper 3 Front bumper main body 3a Peripheral part 3b Back surface 4 Opening 5 Grill (lower grill) 6 License plate mounting plate 10 Frame body 11 Fin 11a Lowermost fin 13a, 13b Vertical rib for wind guide 14 Extension part 15 Mounting piece 16 U-shaped cross section 19 Parting width 20 Guide flange 23 Mounting hole 24 Engagement claw 32 Rib 40 Condenser or radiator H Extension

Claims (4)

[Claims] 1. A front bumper in which a grill provided with a plurality of fins extending in the front-rear direction of the vehicle body is assembled in an opening of a front bumper main body. A front bumper characterized by being extended to the side. 2. A grill comprising a pair of vertical ribs extending toward the rear of the vehicle body on both sides of the grill body having fins in the vehicle width direction, and a grill provided on one side of an opening provided in the front bumper body. In the front bumper configured and arranged, the vertical ribs for wind guiding on the outer side in the vehicle width direction of the pair of vertical ribs for wind guiding are extended upward, and this extended portion is attached to a front bumper main body. Front bumper characterized by doing. 3. A front bumper comprising a grill or a net incorporated in an opening provided in a front bumper main body, wherein a frame having a U-shaped cross section or an L-shaped cross section is formed around a periphery of the grill or the net. The grill or the net is assembled to the front bumper main body by inserting and arranging the front bumper main body into the frame with the peripheral portion of the opening along the one side surface of the frame of the grill or the net. A front bumper characterized by: 4. The front bumper according to claim 3, wherein a guide flange inclined in a direction away from the grill main body or the net main body is provided on a frame portion of the grill or the net.