JP2001151051A - Arrangement structure of bumper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an arrangement structure of a bumper of constitution capable of positively tilting a rib, provided on a back face of a bumper main body for preventing the bumper from contacting a radiation fin on a front face of an air conditioner condenser or the like during a minor collision, in a direction away from the radiation fin for protecting internal installation parts. SOLUTION: A pair of ribs 10 are provided on the bumper main body 4 or a bumper grill 6 attached to the bumper main body 4. The pair of ribs 10 are arranged each in correspondence to rigid portions M (for example, a refrigerant circulating pipe 11) in positions on both sides and away from tbe radiation fin on the front face of the air conditioner condenser 9 or a radiator 8. A relief mechanism 12 is provided for tilting the pair of ribs 10 away from the radiation fin when the pair of ribs 10 contact the rigid portions M in association to deformation of the bumper main body 4 or the bumper grill 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for disposing a bumper in a vehicle such as an automobile.

[0002]

BACKGROUND OF THE INVENTION The front and rear ends of a motor vehicle are usually
Bumpers are provided mainly for protecting the body, functional components such as a radiator, an air conditioner capacitor, and lamps.

[0003]

Generally, a bumper for a vehicle such as a front bumper of an automobile has a small thickness, that is, a depth width W in the front-rear direction of the vehicle body (see FIG. 1) due to design requirements and is flat. In many cases, the rigidity of the bumper as a whole tends to be insufficient. In a bumper having such a flat surface portion with low surface rigidity, deformation of the bumper (dent generated when the bumper is locally pressed) may cause a problem.

[0004] Further, in the case of a vehicle having a short hood, etc., due to restrictions on parts layout or design,
In some cases, the clearance between the front bumper and the air conditioner condenser or radiator cannot be sufficiently secured. In such a case, for example, the front bumper is greatly deformed only by a slight collision such as a bumper lightly hitting an obstacle during low-speed traveling such as when entering a garage,
There is a possibility that a locally rigid bumper portion (for example, a flange portion forming a traveling wind intake opening) hits an internal fitting component such as an air conditioner condenser arranged at a rear portion of the front bumper, and breaks them.

In order to eliminate such a defect, FIG.
As shown in the figure, for example, rigid portions M on both sides of the air conditioner condenser 30 deviated from heat radiating fins (not shown) on the front surface of the air conditioner condenser 30, that is, a metal refrigerant distribution pipe that is strong and does not easily deform. A pair of ribs 32 (only one rib is shown in FIG. 9) respectively corresponding to 31 are provided on the back surface 33 a of the bumper main body 33, and these pair of ribs 32 are “clamped rods” corresponding to the rigid portions M. It is possible to arrange as. In addition, as the pair of ribs 32, a conventional air guide plate can be used. In this manner, the pair of ribs 32 is
If the bumper main body 33 is deformed at the time of a minor collision which does not affect the occupant, the pair of ribs 32 allow the pair of ribs 32 to be disposed in correspondence with the refrigerant distribution pipe 31 on the side of the air conditioner condenser 30. Since the bumper 31 hits, deformation of the bumper main body 33 can be suppressed to a small extent, and it is possible to prevent a locally rigid bumper portion from hitting internal fittings such as the air conditioner condenser 30.

However, when the above-described configuration is adopted, a pair of ribs 32 are connected to the refrigerant flow pipe with a slight collision force F applied to the bumper main body in the direction shown by the arrow in FIG. When the rib 31 hits the rigid portion 31 (the rigid portion M), there is a possibility that the pair of ribs 32 fall down toward the heat radiation fins on the front surface of the air conditioner condenser 30 as shown in FIG. If the rib 32 falls down, the tip of the rib 32 may hit the radiating fin and damage the radiating fin.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to locally deform a bumper when a slight collision force acts on the bumper to deform the bumper. In order to prevent a high part (for example, a flange part forming an opening for intake of the traveling wind) from hitting a radiating fin (a part having a low rigidity and most susceptible to damage) on a front surface of an air conditioner condenser, etc. It is an object of the present invention to provide a bumper arrangement structure in which the provided rib can be reliably tilted in a direction away from the heat radiating fins to protect the internal fitting parts.

[0008]

In order to achieve the above object, according to the present invention, a pair of ribs are provided on a bumper main body or a bumper grill attached to the bumper main body, and these pair of ribs are connected to an air conditioner condenser or a radiator. At positions deviated from the radiating fins on the front surface of the air conditioner and the radiator, the two ribs are arranged corresponding to the rigid positions on both sides of the radiator. An escape mechanism is provided for tilting the pair of ribs in a direction away from the heat radiation fins of the air conditioner condenser or the radiator when hitting a rigid portion.
Further, in the present invention, the pair of ribs are configured as vertical ribs attached to the back surface of the bumper main body or the bumper grill, and the relief mechanism is connected to the tips of these vertical ribs, respectively, and The fin is formed by a bent piece inclined toward the opposite side. In the present invention, the pair of ribs are configured as vertical ribs attached to the back surface of the bumper body or the bumper grill, and the relief mechanism is connected to a side surface of the vertical rib and corresponds to the rigid portion. The rear end portion is formed of a lateral rib having an inclined surface which is inclined substantially along the inclination direction of the bent piece portion. Further, in the present invention, as the pair of ribs, an air guide plate provided on the bumper body or the bumper grill for introducing a traveling wind to the front of the air conditioner condenser or the radiator is used. Also, in the present invention, the pair of ribs are provided on a part different from the bumper body and the bumper grill, and the bent part or the lateral rib is provided on the separate part, and the separate part is provided on the back surface of the bumper body or the bumper grill. It is attached to the side. In the present invention, the screw is screwed to the boss by applying a mounting piece provided on the separate component to a boss provided on the back surface of the bumper body and the bumper grill. The parts are mounted on the back side of the bumper body or the bumper grill. Further, in the present invention, the U of which the end portion is open to the mounting piece portion of the separate component is provided.
The other part is attached to the back side of the bumper main body and the bumper grill by forming a letter-shaped long hole, inserting the screw part of the screw into the long hole, and screwing it to the boss part. When an acting force is applied to the mounting member, the mounting piece of the another component moves in a direction away from the radiating fin along the longitudinal direction of the long hole so that the mounting state of the another component by the screw is released. It is composed. Further, in the present invention, when the boss is disposed at a position in front of the air conditioner condenser or the radiator, a cutout is provided by reducing the thickness of the boss, or at a root portion of the boss. Thereby, when the pair of ribs escape from the rigid portion, the boss is configured to be easily inclined in a direction away from the heat-radiating fin.

[0009]

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

FIG. 1 shows a configuration of a front portion of a vehicle body of an automobile 1 having a bumper arrangement structure according to a first embodiment of the present invention. The vehicle 1 is of a type having a short hood (front hood) 2 at the front, and a bumper (front bumper) 3 at a lower portion of the hood 2.
Are arranged along the vehicle width direction.

As shown in FIGS. 1 and 2, the above-mentioned bumper 3 is fitted into a bumper main body 4 made of synthetic resin and a traveling wind intake opening 5 provided substantially at the center of the bumper main body 4. And a synthetic resin bumper grill 6 to be arranged.

On the other hand, as shown in FIG. 1, a radiator 8 and an air conditioner condenser 9 are arranged on the first cross member 7 at the front part of the vehicle body so as to be arranged in the longitudinal direction of the vehicle body so as to face each other. Is disposed in the vicinity of the front of the vehicle. The bumper 3 is attached to a position near the front of the air conditioner condenser 9 in a facing state.

Further, on the back surface 4a of the bumper body 4,
As shown in FIGS. 2 and 3, a pair of right and left ribs 10 which are also used as air guide plates for the air conditioner condenser 9 are integrally formed. , Respectively. More specifically,
As shown in FIGS. 2 and 3, the pair of ribs 10 are configured as vertical ribs extending over substantially the entire width in the up-down direction on the back surface side of the bumper body 4, and the lower portions thereof are formed as the traveling air intake openings 5. Are arranged so as to traverse along the vertical direction. Thus, these plate-shaped ribs 1
0 are arranged in parallel with each other, and the width between them is a pair of ribs 10 integrally formed on the back surface 4a of the bumper body 4.
Can be installed in front of the air conditioner condenser 9 so as to function as a baffle plate for introducing traveling wind, and the traveling wind that has passed through the air conditioner condenser 9 and the radiator 8 returns to the front side of the air conditioner condenser 9 again. The pair of ribs 10 are set to be slightly narrower than the width of the air conditioner condenser 9 in order to prevent the pair from being inserted. The tips α of the pair of ribs 10 are located at positions corresponding to the high-rigidity refrigerant distribution pipes 11 (rigid portions M) constituting both sides of the air conditioner condenser 9, respectively, and at the front of the air conditioner condenser 9. The heat radiation fins (not shown) are arranged at positions deviated on both left and right sides (outside) from the heat radiation fins (not shown) (see FIG. 3).

Further, in relation to the pair of ribs 10,
An escape mechanism 12 for tilting the pair of ribs 10 in a direction away from the heat radiation fins of the air conditioner condenser 9.
(See FIG. 3). As shown in FIG. 3, the escape mechanism 12 in the first embodiment is provided continuously (extends continuously) at the tip α of the rib (vertical rib) 10 and opposite to the heat radiation fin on the front surface of the air conditioner condenser 9. The rib 10 includes a bent piece 13 inclined toward the side, and a substantially horizontal transverse rib 14 integrally formed on the side surface of the rib 10. Although the horizontal ribs 14 are provided in a pair at the top and bottom as shown in FIG. 2, the number may be one or three or more.

Here, the lateral rib 14 will be described in more detail. The lateral rib 14 is formed integrally with the side of the rib 10 on the side of the radiating fin, and the rigid portion M on the side of the air conditioner condenser 9 is formed. That is, at the rear end of the horizontal rib 14 corresponding to the refrigerant distribution pipe 11, a corner thereof (a portion shown by a broken line in FIG. 3) is cut out and inclined substantially along the inclination direction of the bent piece 13. Slope 15
Are formed. Thus, a series of inclined guide surfaces are formed by the surface (inclined surface 16) of the bent piece 13 on the side of the air conditioner condenser and the inclined surface 15 at the rear end of the lateral rib 14. At the side position of the condenser 9, the condenser 9 is disposed to face the refrigerant flow pipe 11 (the rigid portion M).

Although the configuration of the rib 10 on the other side and parts related thereto is not shown, the configuration is symmetrical to the above-described rib 10.

According to the arrangement structure of the bumper 3 having such a configuration, the pair of ribs 10 integrally formed on the back surface 4a of the bumper main body 4 are used to guide the wind to the front surface of the air conditioner condenser 9 for introducing the traveling wind. The air conditioner can be installed so as to function as a plate, and the pair of ribs can prevent the traveling wind passing through the air conditioner condenser 9 and the radiator 8 from wrapping around to the front side of the air conditioner condenser 9 again. Also, by forming these pair of ribs 10 integrally with the back surface 4a of the bumper main body 4, the bumper main body 4
Rigidity can be increased.

Moreover, not only the rigidity of the bumper body 4 can be increased, but also the position of the heat dissipating fins (the position of the condenser fins) on the front surface of the air conditioner condenser 9 which is easily damaged.
The position of the pair of ribs 10 is shifted from that of the air conditioner 9 so as to correspond to the refrigerant flow pipes 11 (rigid portions M) on the side of the air conditioner condenser 9, respectively. When the bumper 3 is deformed, the tip α of the pair of ribs 10 hits the pipe 11, so that the amount of deformation of the bumper 3 at the time of a slight collision can be suppressed small, and the bumper 3 has locally high rigidity. A portion (for example, the flange portion 4b of the bumper main body 4) can be prevented from hitting the air conditioner condenser 9. In addition, a locally rigid portion of the bumper 3 (for example, a flange portion 4b of the bumper body 4) is
Before hitting, the pair of relatively soft ribs 10 hits the refrigerant distribution pipe 11 which is a high rigidity part, so that the collision force acting on the bumper 3 due to the slight collision can be absorbed and the inside of the air conditioner condenser 9 and the like can be absorbed. The degree of damage to the fitting parts can be reduced.

As described above, according to this embodiment, the rigidity of the bumper 3 can be increased by using the conventionally used bumper-integrated air conditioner condenser air guide plate as the pair of ribs 10. Since the amount of deformation of the bumper 3 at the time of a minor collision can be reduced,
The degree of damage to internal fittings such as the air conditioner condenser 9 can be reduced.

Further, according to the arrangement structure of the bumper 3 according to the present embodiment, the amount of deformation (bending amount) of the bumper body 4 can be suppressed by applying the pair of ribs 10 to the pipe 11 as described above. In addition, the escape mechanism 12 including the bent piece 13 and the horizontal rib 14 is attached to the pair of ribs 10, so that the inclined surface 16 of the bent piece 13 and the inclined surface 15 of the horizontal rib 14 are formed. By the sliding action (guide action) when hitting the pipe 11,
At the time of a minor collision, the rib 10 is moved so as to escape in a direction away from the heat radiation fins on the front surface of the air conditioner condenser 9. Specifically, the rib 10 moves away in the direction of arrow R in FIG. For this reason, it is possible to reliably avoid a problem in which the rib 10 hits and damages the radiating fin.

FIG. 5 shows an arrangement structure of a bumper according to a second embodiment of the present invention. In the present embodiment, a component 20 (hereinafter, referred to as a separate component 20) different from the bumper main body 4 is attached to the back surface 4a of the bumper main body 4.
, The rib 10, the bent piece 13 and the horizontal rib 14, which perform the same functions as in the first embodiment described above, are provided.

The above-mentioned separate component 20 is an integrally molded product made of a synthetic resin, and as shown in FIG. 5, a rib 10 composed of a vertical rib and a bent piece 13 connected to the tip α of the rib 10.
A lateral rib 14 provided on a side surface of the rib 10;
0, and a mounting piece 21 protruding from an intermediate portion. On the other hand, on the back surface 4a of the bumper body 4, a boss portion 23 having a screw hole 22 at a position corresponding to a front position on the side of the air conditioner condenser 9 is integrally formed. Thus, the mounting piece 21 of the separate component 20 is connected to the boss 2
3, the screw 25 is inserted into the screw insertion hole 24 of the mounting piece 21 so that the boss 23
By screwing into the screw hole 22 of the
0 is attached to the back surface 4a of the bumper body 4. In this case, the rib 10 is disposed substantially along the vehicle front-rear direction, and the front end P of the rib 10 is disposed at a position slightly spaced from the back surface 4a of the bumper main body 4.

Although not shown in the drawings, the other separate component is configured similarly to the above-described separate component 20, and the other separate component is disposed symmetrically with respect to the above-described separate component 20. It is attached to the back surface 4a of the bumper body 4.

According to the arrangement structure of the bumper 3 having such a configuration, the same operation and effect as in the case of the above-described first embodiment can be obtained. Further, the rib 10, the bent piece portion 13, the horizontal rib 14, and the like are provided separately from the bumper body 4 (a separate component 2).
0), the resin molding is facilitated, and the bumper body 4 has no protrusions, so that the handling is facilitated.

FIG. 6 shows an arrangement structure of a bumper according to a third embodiment of the present invention. In the present embodiment, a U-shaped long hole 2 is used instead of the screw insertion hole 24.
6 is formed in the mounting piece 21 of the separate component 20,
6, the screw portion of the screw 25 is inserted into the bumper body 4
The separate component 20 is attached to the back surface 4a of the bumper body 4 by screwing.
One end of the above-mentioned U-shaped long hole 26 is open at the end face of the mounting piece 21. Other configurations are the same as those in the second embodiment (see FIG. 5).

Thus, as the bumper body 4 is deformed at the time of a minor collision, the rib 10 of the separate component 20 hits the refrigerant flow pipe 11 on the side of the air conditioner condenser 9 and the reaction force is applied to the separate component 20, and As described above, when the component 20 falls down in a direction away from the heat radiation fins on the front surface of the air conditioner condenser 9, the mounting piece 21, and thus the separate component 20, is guided by the slot 26 of the mounting piece 21 and the screw 25. The screw 25 is moved along the longitudinal direction of the long hole 26 in a direction away from the heat dissipating fin.
, So that the attached state of the separate component 20 is released.

According to the arrangement structure of the bumper 3 having such a configuration, there are the following advantages. That is, as in the case of the above-described second embodiment, the distance between the bumper body 4 and the front surface of the air conditioner condenser 9 can be made relatively wide, and the bent pieces 13 and the lateral ribs 14 in the vehicle longitudinal direction can be formed. When the arrangement area L (see FIG. 5) can be made relatively large, the rib 10 is disengaged from the heat dissipating fins even if the mounting piece 21 of the separate component 20 is firmly fastened with the screw 25. In the case where the arrangement region L is extremely narrow and the boss portion 23 is not on the front surface of the air conditioner condenser 9, the rib 10 can be sufficiently released in the structure shown in FIG. It is difficult to escape. However, according to the configuration of the present embodiment, when a certain or more impact force is applied to the separate component 20, the mounting piece 21 of the separate component 20 is moved along the longitudinal direction of the U-shaped long hole 26. As a result, the rib 10 is detached from the boss portion 23, so that the rib 10 can be reliably released in a direction in which the rib 10 is detached from the radiating fin.

FIGS. 7 and 8 show a bumper arrangement structure according to a fourth embodiment of the present invention. The present embodiment has a bumper arrangement structure applied when the boss 23 is arranged at a position in front of the air conditioner condenser 9. In this case, by reducing the thickness T (see FIG. 7) of the boss portion 23 or by providing a notch 27 at the root portion of the boss portion 23, the rib 10
When escaping from the fin, the boss portion 23 is configured to be easily pulled down by the separate component 20 and to be tilted away from the heat radiation fin.

According to the arrangement structure of the bumper 3 having such a configuration, the boss portion 2 located in front of the air conditioner condenser 9 is provided.
3 easily tilts, so that in a minor collision, the boss 23 falls down so as to come off from the air conditioner condenser 9 and does not exist in front of the air conditioner condenser 9, so that the boss 23 hits the air conditioner condenser 9 and damages it. It can be eliminated.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various modifications and changes can be made based on the technical idea of the present invention. For example, in the above-described first to fourth embodiments, as the relief mechanism 12, the bent piece 13 and the lateral rib 1
4 are provided together, but only one of them may be provided. Further, in the above-described embodiment, the pair of ribs 10 is provided on the bumper main body 4. However, the rear surface of the bumper grille 6 attached to the traveling wind intake opening 5 of the bumper main body 4, or the traveling wind intake A pair of ribs 10 as described above may be provided on the back surface of a bumper grill (not shown) provided above the bumper opening 5 above the opening 5. The shapes of the ribs (vertical ribs) 10, the bent pieces 13, and the horizontal ribs 14 can be appropriately changed. Further, it is not always necessary to dispose the rib 10 corresponding to the refrigerant flow pipe 11 on the side of the air conditioner condenser 9, and the rib 10 may be disposed at an appropriate rigid portion on the side of the air conditioner condenser 9 (for example, the air conditioner condenser 9). (For example, a bracket disposed at a position near the side of the air conditioner condenser 9).

In the above-described embodiment, the radiator 8
A pair of ribs 10 is provided for the air conditioner condenser 9 disposed in front of the radiator 8 or the air conditioner condenser 9 when the radiator 8 and the air conditioner condenser 9 are arranged side by side. A pair of ribs 10 may be provided for one or both of them. Also in this case, similarly to the above-described embodiment, it is possible to protect the internal equipment such as the radiator 8 and the air conditioner condenser 9 at the time of a minor collision.

Further, in the above-described embodiment, a pair of ribs 10 are provided on the front bumper 3. However, a pair of ribs 10 are provided on the rear bumper to protect the internal fitting parts arranged corresponding to the rear bumper. You may make it aim.

[0033]

According to the first aspect of the present invention, a pair of ribs are provided on a bumper main body or a bumper grill attached to the bumper main body, and the pair of ribs are connected to a heat-radiating fin on a front surface of an air conditioner condenser or a radiator. A pair of ribs are arranged at positions deviated and corresponding to the rigid portions on both sides of the air conditioner condenser or the radiator, respectively, and when the pair of ribs hit the rigid portions due to the deformation of the bumper body or the bumper grille. The air conditioner is equipped with an escape mechanism for tilting the air conditioner in the direction away from the radiator fins of the air conditioner condenser or radiator. Of the so-called "stick" when hitting the rigid part of the front of the Plus, when the further pair of ribs with a large impact force strikes the rigid portion is so that the pair of ribs are inclined in a direction out of the heat radiation fin by the action of the escape mechanism. For this reason, it is possible to prevent a locally rigid portion of the bumper (for example, a flange portion forming an opening for intake of the traveling wind) from hitting the radiating fin (a portion most susceptible to damage). It is possible to protect internal fitting parts such as a radiator and a radiator. Further, the rigidity of the bumper itself is increased with the provision of the pair of ribs on the bumper body, so that the amount of deformation of the bumper at the time of a slight collision can be suppressed.

According to a second aspect of the present invention, the pair of ribs are formed as vertical ribs attached to the back surface of the bumper body or the bumper grill, and the above-described relief mechanism is provided at the tips of these vertical ribs. Since it is composed of bent pieces that are connected to each other and inclined toward the opposite side to the radiating fins, adopt a simple configuration that simply extends the bent piece at the tip of the rib Thereby, at the time of a minor collision, the rib can be reliably released from the radiating fin on the front surface of the air conditioner condenser or the radiator, and the rib can be reliably prevented from hitting the radiating fin.

According to a third aspect of the present invention, the pair of ribs are formed as vertical ribs attached to the back surface of the bumper body or the bumper grill, and the above-described relief mechanism is connected to the side surface of the vertical rib. In addition, since the horizontal rib having the inclined surface formed at the rear end corresponding to the rigid portion and inclined substantially along the inclination direction of the bent piece portion, the horizontal rib having the inclined surface is replaced by the side surface of the vertical rib. By adopting the simple structure attached to the fin, the rib can be reliably released from the radiator fin on the front of the air conditioner condenser or radiator in the event of a minor collision, and the rib hits the radiator fin reliably. Can be prevented. Further, the rigidity of the vertical ribs can be improved with the provision of the horizontal ribs.

According to a fourth aspect of the present invention, as the pair of ribs, an air guide plate provided on a bumper body or a bumper grill for introducing a traveling wind to the front of an air conditioner condenser or a radiator is used. Therefore, by using the conventional air guide plate for the air conditioner condenser or the radiator (existing air guide plate rib), the rigidity of the bumper is increased, and the deformation of the bumper at the time of a minor collision is reduced. It is possible to reduce damage to internal fittings such as an air conditioner condenser and a radiator from a bumper.

According to a fifth aspect of the present invention, a pair of ribs are provided on a part (separate part) different from the bumper body and the bumper grill, and a bent piece or a lateral rib is provided on the separate part. Since the separate parts are mounted on the back surface of the bumper body or the bumper grill, there is no need to provide a pair of ribs (vertical ribs), bent pieces or horizontal ribs on the back surface of the bumper body or the bumper grill. It can be easily manufactured (such as resin molding) as a separate part.

According to a sixth aspect of the present invention, a screw is screwed to the boss by applying a mounting piece provided on another part to the boss provided on the back surface of the bumper body and the bumper grill. By doing so, the separate parts are mounted on the back side of the bumper body or the bumper grill, so that the work of mounting the separate parts on the bumper body can be easily performed, and the air conditioner condenser can be mounted similarly to the case described above. It is possible to protect internal fitting parts such as a radiator and a radiator.

According to a seventh aspect of the present invention, a U-shaped elongated hole having an open end is formed in a mounting piece of another component.
By inserting the screw part of the screw into the long hole and screwing it to the boss part, another part is attached to the back side of the bumper main body and the bumper grill, and when the action force is applied to another part, the mounting piece part of the other part is Since it is configured to move along the longitudinal direction of the long hole in a direction away from the heat radiating fin and release the attachment state of another component by the screw, there are the following advantages. That is, if the distance between the bumper body and the internal fittings such as the air conditioner condenser and the radiator is small, the tilting amount of the pair of ribs cannot be secured sufficiently large, so that the pair of ribs escape from the radiating fins. Although the amount cannot be increased, if another part is screwed through a U-shaped long hole as in the present invention,
In the event of a minor collision, another part will come off the boss,
Accordingly, the pair of ribs can be reliably released from the radiating fins.

Further, according to the present invention, when the boss is disposed at a position in front of the air conditioner condenser or the radiator, the thickness of the boss is reduced.
Alternatively, a notch is provided at the root portion of the boss portion so that the boss portion is easily tilted in a direction away from the radiating fins when the pair of ribs escape from the combined portion, so that in the event of a minor collision In this case, the boss may be tilted (falled) to a position where the boss is disengaged from the radiating fin. Therefore, even if the boss is disposed in front of the air conditioner condenser or the radiator, the boss may hit the radiating fin in a minor collision. Troubles can be avoided.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a vehicle body front portion of an automobile having a bumper arrangement structure according to a first embodiment of the present invention.

FIG. 2 is an enlarged perspective view showing a main part of a bumper.

FIG. 3 is an enlarged sectional view taken along line AA in FIG. 2;

FIG. 4 is a cross-sectional view showing a relief operation of a rib at the time of a minor collision.

FIG. 5 is a sectional view showing an arrangement structure of a bumper according to a second embodiment of the present invention.

FIG. 6 is an exploded perspective view for explaining an arrangement structure of a bumper according to a third embodiment of the present invention.

FIG. 7 is a cross-sectional view illustrating an arrangement structure of a bumper according to a fourth embodiment of the present invention.

FIG. 8 is a cross-sectional view for explaining a tilted state of a boss in the case of the bumper arrangement structure shown in FIG. 7;

FIG. 9 is a cross-sectional view showing a state in which ribs provided on the back surface of the bumper main body are arranged corresponding to refrigerant pipes on the side of the air conditioner condenser.

FIG. 10 is a cross-sectional view for explaining a movement state of a rib at the time of a minor collision in the case of the bumper arrangement structure shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automobile 3 Bumper 4 Bumper main body 4a Back surface 4b Flange part 5 Opening for intake of traveling wind 6 Bumper grill 8 Radiator 9 Air conditioner condenser 10 Rib (wind guide plate) 11 Refrigerant distribution pipe (rigid part) 12 Escape mechanism 13 Bending piece part Side rib 15 Inclined surface 20 Separate component 21 Mounting piece 23 Boss 25 Screw 26 Slot 27 Notch α Tip M Rigid place T Thickness

Claims (8)

[Claims] A pair of ribs are provided on a bumper main body or a bumper grill attached to the bumper main body, and the pair of ribs is located at a position separated from a heat radiation fin on a front surface of an air conditioner condenser or a radiator, and the air conditioner condenser is provided. Or arranged corresponding to the rigid portions on both sides of the radiator, respectively, when the pair of ribs hit the rigid portion due to the deformation of the bumper body or bumper grill, the pair of ribs the air conditioning condenser or An arrangement structure for a bumper, comprising a relief mechanism for tilting the radiator in a direction away from the heat radiation fins. 2. The pair of ribs are configured as vertical ribs attached to the rear surface of the bumper body or the bumper grill, and the escape mechanism is connected to the ends of these vertical ribs, respectively, and the radiation fins are provided. The bumper arrangement structure according to claim 1, wherein the bumper is configured with a bent piece portion inclined toward the opposite side. 3. The pair of ribs are configured as vertical ribs attached to the back surface of the bumper body or the bumper grill, and the relief mechanism is connected to a side surface of the vertical rib and corresponds to the rigid portion. 2. The bumper arrangement structure according to claim 1, wherein the end portion is formed by a horizontal rib having an inclined surface inclined substantially along an inclination direction of the bent piece portion. 4. The bumper according to claim 1, wherein the pair of ribs are wind guide plates provided on the bumper body or the bumper grill for introducing a traveling wind to a front surface of the air conditioner condenser or the radiator. An arrangement structure of the bumper according to any one of the preceding claims. 5. The bumper body and the bumper grill are provided with the pair of ribs on another part, and the bent part or the lateral rib is provided on the separate part. The bumper arrangement structure according to claim 2, wherein the bumper is mounted on a bumper. 6. A separate boss provided on the rear surface of the bumper main body and the bumper grill is applied to a mounting piece provided on the separate component, and a screw is screwed to the boss to form the separate component. 6. The bumper arrangement structure according to claim 5, wherein the bumper is attached to the back side of the bumper body or the bumper grill. 7. A U-shaped elongated hole having an open end is formed in a mounting piece portion of the separate component, and a screw portion of the screw is inserted into the elongated hole and screwed to the boss portion. Thereby, the separate component is attached to the back side of the bumper main body and the bumper grill, and when an acting force is applied to the separate component, the mounting piece of the separate component is displaced from the heat dissipating fin along the longitudinal direction of the long hole. The arrangement structure of a bumper according to claim 6, wherein the mounting state of the separate component by the screw is released by moving in a direction in which the bumper is disengaged. 8. When the boss is disposed at a position in front of the air conditioner condenser or the radiator, the thickness of the boss is reduced, or a notch is provided in a root portion of the boss. The bumper according to claim 6, wherein the boss portion is easily tilted in a direction away from the radiating fin when the pair of ribs escape from the rigid portion. Construction.