JP2007290624A - Front bumper structure for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a front bumper structure for an automobile capable of sufficiently guiding outside air to a radiator even when an air intake port of a front bumper is close to the radiator. <P>SOLUTION: In the front bumper structure 10 for the automobile, a bumper grill 15 is provided on an opening 12 of a front bumper cover 11, the outside air is taken-in from the air intake port 16 of the bumper grill 15, and the taken-in outside air is led to the radiator 18 side of an engine room 17. In a grill wall 22 for forming the air intake port 16, introduction recession parts 46, 46, 46 are formed on a rear side 23a facing to the radiator 18, and upper and lower engagement parts 45, 45, 45, 48, 48, 48 engaged with upper and lower engagement holes 41a, 41a, 41a, 42a, 42a, 42a of the front bumper cover 11 are provided on a front side portion of the introduction recession part 46. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an automobile front bumper structure that takes outside air from a bumper grill of a front bumper cover and guides the outside air to a radiator side of an engine room.

As a front bumper structure of an automobile, a front bumper is provided at the front of a vehicle body, an air intake is provided in the front bumper, and a guide wall is provided between the front bumper and a radiator (see, for example, Patent Document 1). .
JP, 2005-138690, A According to the front bumper structure of this automobile, it is possible to take in outside air from the air intake and guide the outside air to the radiator through a guide wall.

Here, some of the front bumper structures of automobiles have an air intake port of the front bumper close to the radiator. When the air intake port is close to the radiator, it is difficult to secure a space for providing a guide wall between the air intake port and the radiator.
For this reason, even when the air intake port of the front bumper is close to the radiator, it has been desired to put into practical use a technique for guiding outside air to the radiator well.

  It is an object of the present invention to provide a front bumper structure for an automobile that can satisfactorily guide outside air to the radiator even when the air intake port of the front bumper is close to the radiator.

  According to a first aspect of the present invention, there is provided a front bumper structure for an automobile in which a bumper grill is provided at an opening of a front bumper cover, outside air is taken in from an air intake port of the bumper grill, and the taken outside air is guided to a radiator side of an engine room. The grill wall that forms the air intake has an introduction recess formed in the rear side facing the radiator, and a locking portion that locks into the locking hole of the front bumper cover is provided in a front portion of the introduction recess. It is characterized by.

  The invention according to claim 2 is characterized in that, in the state where the locking portion is locked in the locking hole of the front bumper cover, the rear end portion is located behind the front bumper cover.

In the invention which concerns on Claim 1, the introduction recessed part was formed in the rear side which faces a radiator among the grille walls of an air intake port.
As described above, since only the introduction recess is provided in the grille wall of the air intake port, even when the air intake port of the front bumper cover is close to the radiator, the outside air taken in from the air intake port passes through the introduction recess to the radiator side. There is an advantage that it can lead well.

Further, by forming the introduction concave portion in the rear wall facing the radiator in the grill wall of the air intake port, the introduction concave portion can be disposed at a position where it cannot be seen from the outside of the vehicle body.
Furthermore, by forming an introduction recess in the rear wall of the air intake opening facing the radiator, it is possible to keep the portion facing the outside of the vehicle body as a straight ridgeline, and to maintain a good appearance. Can do.

In addition, a locking portion is provided at the front portion of the introduction recess, and the locking portion can be locked in the locking hole of the front bumper cover.
Therefore, since the bumper grill can be separated from the front bumper cover, the bumper grill and the front bumper cover can be individually coated.

  As a result, for example, even when the paint color of the bumper grill is different from that of the front bumper cover, it is possible to save the trouble of masking the bumper grill and the front bumper cover during painting, and the painting work can be performed easily. There are advantages.

The invention according to claim 2 is configured such that the rear end portion of the locking portion is positioned behind the front bumper cover in the state of being locked in the locking hole of the front bumper cover.
Therefore, the rear end portion of the locking portion can be easily pressed until the locking portion is locked in the locking hole.
Thereby, there exists an advantage that the operation | work which attaches a bumper grill to a front bumper cover can be performed easily.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. “Front”, “back”, “left”, and “right” indicate Fr as the front side, Rr as the rear side, L as the left side, and R as the right side according to the direction viewed from the operator.
FIG. 1 is a front view showing a vehicle equipped with a front bumper structure for an automobile according to the present invention.
The front bumper structure 10 of the automobile is provided with a bumper grill 15 at the opening 12 of the front bumper cover 11. The outside air is taken in from the air intake 16 of the bumper grill 15, and the taken outside air is supplied to the radiator of the engine room 17 shown in FIG. 4. It is configured to guide to the 18th side.

The opening 12 is an opening that is formed by an opening wall 21 to which the bumper grill 15 is attached and is disposed horizontally in the vehicle body width direction.
The bumper grill 15 includes a substantially rectangular grill wall 22 that forms the air intake port 16. The substantially rectangular grill wall 22 is formed by upper and lower wall portions 23 and 24 and left and right side wall portions 25 and 26.
A horizontal rib 28 is provided in the grill wall 22 and a plurality of vertical ribs 29 are provided.

A front grill 32 is provided above the center of the front bumper cover 11.
A left headlight 33 is provided on the left side of the front grill 32, that is, above the left side of the front bumper cover 11, and a right headlight 34 is provided on the right side of the front grill 32, that is, above the right side of the front bumper cover 11. It has been.

FIG. 2 is a perspective view showing a state in which the front bumper structure of the automobile according to the present invention is viewed from the inside of the vehicle body, and FIG. 3 is an exploded perspective view showing a state in which the bumper grill is disassembled from the front bumper cover of the front bumper structure of the automobile.
In the front bumper cover 11, the opening wall 21 is formed into a substantially rectangular frame body with upper and lower wall portions 36 and 37 and left and right side wall portions 38 and 39 (see FIG. 1 for the right side wall portion 39).

The upper wall portion 36 is a wall portion that protrudes rearward from the rear surface 11a of the front bumper cover 11 and is formed horizontally in the vehicle body width direction.
The upper wall 36 is formed with upper protrusions 41 at predetermined intervals, and upper locking holes (locking holes) 41a are formed in the upper protrusions 41, respectively.

The lower wall portion 37 is a wall portion that protrudes rearward from the rear surface 11a of the front bumper cover 11 and is formed horizontally in the vehicle body width direction.
The lower wall portion 37 is formed with lower protrusions 42 at predetermined intervals, and the lower protrusions 42 are formed with lower locking holes (locking holes) 42a.

  The bumper grill 15 is provided with vertical ribs 29 at predetermined intervals over the upper and lower wall portions 23, 24 of the substantially rectangular grill wall 22, and left and right side wall portions 25, 26 (right side wall portion 26) of the grill wall 22. 1 is provided with a lateral rib 28.

In the grill wall 22, an insertion groove 44 (see FIGS. 5 and 6) is formed over the entire circumference of the front portion 22 a, and an upper locking portion (locking portion) 45 between the vertical ribs 29, 29 of the upper wall portion 23. In addition, an introduction recess 46 is formed, and a lower locking portion (locking portion) 48 is formed between the vertical ribs 29 of the lower wall portion 24.
The fitting groove 44 is a groove that fits into the rear end 21 a of the opening wall 21.

The upper locking portion 45 is formed by elastically deforming an upper locking piece 45a (see also FIG. 4) from the front portion 22a of the upper wall portion 23 toward the rear of the vehicle body, and the rear end of the upper locking piece 45a. Upper locking claws 45b are formed in the part.
The upper locking claws 45b are members that protrude downward. By making the upper locking claws 45b project downward, the upper locking claws 45b can be locked in the upper locking holes 41a of the opening wall 21.

The introduction recesses 46 are formed on the rear side 23a of the upper wall 23 facing the radiator 18 side (specifically, the capacitor 19) shown in FIG.
The introduction recesses 46 only form a recess in the rear side 23 a of the upper wall portion 23. Therefore, even when the air intake 16 of the front bumper cover 11 is close to the radiator 18 and the condenser 19, the introduction recesses 46 can be easily formed.
Upper locking portions 45 are provided in front portions of the introduction recesses 46.

Similarly to the upper locking portions 45, the lower locking portions 48 ... are elastically deformable lower locking pieces 48a (see also FIG. 4) extending from the front portion 22a of the lower wall portion 24 toward the rear of the vehicle body. Lower locking claws 48b are formed at the rear ends of the lower locking pieces 48a.
The lower locking claws 48b are members that protrude upward. By projecting the lower locking claws 48b upward, the lower locking claws 48b can be locked in the lower locking holes 42a of the opening wall 21 as shown in FIG.

4 is a cross-sectional view taken along line 4-4 of FIG.
The upper and lower wall portions 36 and 37 of the front bumper cover 11 protrude toward the radiator 18 (specifically, the capacitor 19).
Upper locking holes 41a are formed in the upper protrusions 41 of the upper wall portion 36, and lower locking holes 42a are formed in the lower protrusions 42 of the lower wall portion 37.

By inserting the upper fitting groove 44 of the bumper grille 15 in the upper protrusions 41, the upper locking claws 45b are locked in the upper locking holes 41a.
In this state, the rear ends of the upper locking portions 45, that is, the bottom portions 46a of the introduction recesses 46 are positioned behind the upper protrusions 41 (the front bumper cover 11) of the upper wall portion 36.

Similarly, when the lower fitting groove 44 of the bumper grill 15 is fitted into the lower protrusions 42, the lower locking claws 48b are locked in the lower locking holes 42a. To do.
In this state, the rear end portion 24a of the lower wall portion 24 including the lower locking portions 48 (that is, the lower end portion 24a of the lower locking portion 48) is connected to the lower protrusion portion 42 of the lower wall portion 37 (...). It is located behind the front bumper cover 11).

  In this way, the upper locking claw 45b is locked to the upper locking hole 41a, and the lower locking claw 48b is locked to the lower locking hole 42a. The bumper grille 15 is attached to the opening wall 21 of the front bumper cover 11.

Here, the upper wall portion 23 of the bumper grill 15 is located below the upper portion 19a of the capacitor 19 and the upper portion 18a of the radiator 18 to some extent.
In the upper wall portion 23 of the bumper grill 15, introduction concave portions 46 are provided at the rear portion of the upper locking portions 45.

The introduction recesses 46 are simply provided on the grill wall 22 of the air intake port 16, so that they can be easily provided even when the air intake port 16 of the front bumper structure 11 is close to the radiator 18 and the condenser 19. it can.
By providing the introduction recesses 46 in the upper wall portion 23, the outside air taken in from the air intake port 16 passes through the introduction recesses 46 and obliquely upward toward the upper portion 19a of the condenser 19 and the upper portion 18a of the radiator 18 as indicated by an arrow. It can lead well.

Further, in the upper wall portion 23 of the grill wall 22, introduction recesses 46 are formed in the rear side 23 a facing the radiator 18 and the capacitor 19.
As a result, the introduction recesses 46 can be arranged at a position where they cannot be seen from the outside of the vehicle body, and the portion facing the vehicle body outside can be kept at the straight ridge line 53, and the appearance is kept good. Can do.

5 is a cross-sectional view taken along line 5-5 of FIG.
The upper and lower wall portions 36 and 37 of the front bumper cover 11 protrude toward the radiator 18 (specifically, the capacitor 19).
A fitting groove 44 of the bumper grill 15 is fitted into the rear end 21 a of the upper wall portion 36. A fitting groove 44 of the bumper grill 15 is fitted into the rear end 21a of the lower wall portion 37.
Thereby, the upper and lower wall portions 23 and 24 of the bumper grill 15 can be satisfactorily locked to the upper and lower wall portions 36 and 37 of the front bumper cover 11.

6 is a cross-sectional view taken along line 6-6 of FIG.
The left wall portion 38 of the front bumper cover 11 protrudes toward the radiator 18 side (specifically, the capacitor 19) shown in FIGS.
A fitting groove 44 of the bumper grill 15 is fitted into the rear end 21a of the left wall portion 38.
Ribs 51 are formed on the outer wall 44 a of the fitting groove 44. By contacting the rib 51 with the outer surface of the rear end 21a, the left wall portion 25 of the bumper grill 15 can be satisfactorily locked to the left wall portion 38 of the front bumper cover 11.

Next, an example in which the bumper grill 15 is assembled to the front bumper cover 11 will be described with reference to FIG.
FIGS. 7A and 7B are views for explaining an example of assembling the front bumper structure of the automobile according to the present invention.
In (a), the bumper grill 15 is moved from the vehicle body side toward the opening wall 21 of the front bumper cover 11 as indicated by an arrow A.

In (b), the fitting groove 44 of the bumper grill 15 is fitted into the rear end 21a of the opening wall 21.
The upper locking portions 45... Are locked in the upper locking holes 41 a... And the lower locking holes 42 a. The lower locking claws 48b of the portions 48 are locked.
As a result, the bumper grill 15 is attached to the opening wall 21 of the front bumper cover 11.

Here, in a state where the upper and lower locking claws 45b, 48b, etc. are locked in the upper and lower locking holes 41a, 42a, the bottom 46a of the introduction recess 46, the upper protrusion 41, ... The rear end portion 24 a of the lower wall portion 24 is positioned behind the lower protrusions 42 of the lower wall portion 37.
Therefore, the bottom 46a of the introduction recesses 46 and the rear end 24a of the lower wall 24 can be easily pressed.

As a result, the upper locking claws 45b can be easily locked in the upper locking holes 41a, and the lower locking claws 48b can be easily locked in the lower locking holes 42a.
Therefore, the work of attaching the bumper grill 15 to the opening wall 21 of the front bumper cover 11 can be easily performed.

Further, the bumper grill 15 is separated from the front bumper cover 11, and the upper and lower locking holes 41 a..., 42 a. It was possible to attach to.
Therefore, the bumper grille 15 and the front bumper cover 11 can be painted individually.

  Thereby, for example, even when the paint color of the bumper grill 15 is different from that of the front bumper cover 11, the trouble of masking the bumper grill 15 and the front bumper cover 11 at the time of painting can be saved, and the painting work can be easily performed. be able to.

Next, an example of guiding outside air to the radiator side will be described with reference to FIG.
FIG. 8 is a view for explaining an example in which the outside air is guided to the radiator side in the automobile front bumper structure according to the present invention.
As shown by the arrow B, the outside air taken in from the air intake port 16 can be guided well toward the condenser 19 and the radiator 18.

Here, in the upper wall portion 23 of the bumper grill 15, introduction concave portions 46 are provided at the rear portion of the upper locking portions 45.
Thereby, the outside air taken in from the air intake port 16 can be favorably guided toward the upper portion 19a of the condenser 19 and the upper portion 18a of the radiator 18 as indicated by an arrow C through the introduction recesses 46.

Further, in the upper wall portion 23 of the grill wall 22, introduction recesses 46 are formed in the rear side 23 a facing the radiator 18 and the capacitor 19.
Therefore, the introduction recesses 46 can be arranged at a position where they cannot be seen from the outside of the vehicle body.
Furthermore, by forming the introduction recesses 46 on the rear side 23a of the upper wall portion 23, it is possible to keep the portion facing the outside of the vehicle body as the straight ridge line 53, and to maintain good appearance.

  The shapes of the front bumper cover 11, the bumper grill 15, the opening wall 21, the grill wall 22, the upper and lower locking holes 41a and 42a, and the upper and lower upper locking portions 45 and 48 exemplified in the above embodiment can be changed as appropriate. It is.

  INDUSTRIAL APPLICABILITY The present invention is suitable for application to a vehicle having a front bumper structure for a vehicle that takes outside air from the bumper grille of the front bumper cover and guides it to the radiator side.

It is a front view which shows the vehicle provided with the front bumper structure of the motor vehicle based on this invention. It is a perspective view which shows the state which looked at the front bumper structure of the motor vehicle based on this invention from the vehicle body inner side. It is a disassembled perspective view which shows the state which decomposed | disassembled the bumper grille from the front bumper cover of the front bumper structure of a motor vehicle. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. FIG. 5 is a sectional view taken along line 5-5 of FIG. FIG. 6 is a sectional view taken along line 6-6 of FIG. It is a figure explaining the example which assembles the front bumper structure of the car concerning the present invention. It is a figure explaining the example which guides external air to the radiator side with the front bumper structure of the motor vehicle concerning the present invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Front bumper structure of a car, 11 ... Front bumper cover, 12 ... Opening part, 15 ... Bumper grille, 16 ... Air intake, 17 ... Engine room, 18 ... Radiator, 22 ... Grill wall, 23 ... Upper wall part, 23a ... Rear side, 24a ... rear end portion, 41a ... upper locking hole (locking hole), 42a ... lower locking hole (locking hole), 45 ... upper locking portion (locking portion), 46 ... introduction recess, 46a ... bottom part (rear end part), 48 ... lower locking part (locking part).

Claims (2)

In the front bumper structure of the automobile, a bumper grill is provided at the opening of the front bumper cover, and outside air is taken in from the air intake port of this bumper grill, and the taken outside air is guided to the radiator side of the engine room.
The grille wall forming the air intake is
An introduction recess is formed on the rear side facing the radiator,
A front bumper structure for an automobile, wherein a locking portion that locks into a locking hole of the front bumper cover is provided at a front portion of the introduction recess.   2. The front bumper structure of an automobile according to claim 1, wherein a rear end portion of the locking portion is positioned behind the front bumper cover in a state where the locking portion is locked in the locking hole of the front bumper cover.

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