JP2002166849A - Core supporting structure of vehicle radiator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a core supporting structure for a vehicle radiator of new hybrid type whereby the problem concerning a dynamic damper of a supporting bracket for supporting the bottom of the radiator is solved. SOLUTION: The core supporting structure of a vehicle radiator includes a resin reinforcement part 22 extending along a radiator core support lower 14 from the bottom of a hood lock stay 15 to the outside about the direction across the vehicle width, wherein a resin turnround part 29 is formed in a part of the resin reinforcement part 22, and the supporting bracket 36 is formed to support the radiator therefrom, and it is possible to heighten the rigidity of the supporting bracket 36 and assure a sufficient dynamic damper effect.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiator core support structure for a vehicle.

[0002]

2. Description of the Related Art A radiator core support forming the foremost part of a vehicle body is provided with a radiator core support upper and a radiator core support lower extending vertically along a vehicle width direction, and the radiator core support upper and the radiator core support lower are provided. Approximately the center parts in the vehicle width direction
It has a basic structure that is connected by a hood lock stay that extends vertically.

In this type of radiator core support, the above-mentioned components are all made of metal, and when these components are assembled by welding or the like, torsion deformation or dimensional error is likely to occur. The assembling work may be difficult.

Therefore, in order to avoid such torsional deformation and assembly dimensional errors, a hybrid structure in which a part of the radiator core support is formed of resin is used to eliminate the cause of the occurrence of torsional deformation and assembly dimensional errors. Can be considered. When a part of the radiator core support is made of resin, the radiator core support lower needs to function as a first cross member of the vehicle body and requires high rigidity, so it must be formed of metal. The lock stay and the radiator core support upper can be made of resin.

If a part of the radiator core support is formed of resin as described above, not only can twist deformation and assembly dimensional error be avoided, but also various brackets can be simultaneously formed in the resin part, so that parts can be formed. There is also an advantage that integration can be achieved. For example, a radiator support bracket installed on the radiator core support lower can also be integrally formed from a resin portion stretched around the radiator core support lower.

[0006]

However, when a new hybrid structure in which the radiator core support lower is made of metal and other hood lock stays are made of resin, the radiator core support is simply used. The original function of supporting the radiator from below, because the rigidity of the structure in which the support bracket for the radiator is integrally formed from the resin part stretched over the lower part is insufficient compared to the conventional metal support bracket. Can be expected, but cannot perform other required functions.

That is, in general, the support bracket supports the lower end of the radiator through a soft mount that is easily elastically deformed, and prevents transmission of sound and vibration generated by a motor fan mounted on the radiator to the vehicle body. It is supposed to. In particular, in front-wheel drive vehicles, the idling vibration of the vehicle is reduced by configuring the dynamic damper using the mass of this radiator and the spring of the soft mount, but the rigidity of the support bracket is soft. If it is weaker than the spring constant of the mount, a problem arises in that a sufficient dynamic damper effect cannot be obtained.

The present invention has been made by paying attention to such prior art, and a new hybrid type radiator core for a vehicle has been proposed which solves the problem of the vibration damping effect of the support bracket supporting the lower end of the radiator. It provides a support structure.

[0009]

According to the first aspect of the present invention, a radiator core support upper and a radiator core support lower extending respectively in the vehicle width direction are provided above and below, and the radiator core support upper and the radiator core support are provided. In the vehicle radiator core support structure in which the lower is joined by a joining member extending in the vertical direction, the radiator core support lower is formed of metal, and at least the joining member is formed of a resin molded in a mold together with the radiator core support lower. A resin reinforcing portion extending in the vehicle width direction along the radiator core support lower from a lower end portion of the coupling member is integrally formed, and a part of the resin reinforcing portion includes the resin reinforcing portion. A resin wrap around the cross section of the radiator core support lower is formed, and the radiator of the radiator is formed from the resin wrap. A support bracket for supporting the ends,
It is characterized by being integrally formed.

According to a second aspect of the present invention, the radiator core support lower according to the first aspect has an open cross section opened to the rear side, and includes a pair of resin reinforcing portions including the resin reinforcing portions on both left and right sides. Is formed, and the support brackets are formed toward the rear side from the resin reinforcing portion of the portion corresponding to the resin insertion portion.

According to the third aspect of the present invention,
Characterized in that a rib for suspending and supporting the support bracket is formed between the upper surface of each support bracket formed from the resin reinforcement portion of the portion corresponding to the resin insertion portion described in the above and the resin reinforcement portion. I have.

In the invention according to claim 4, the rib according to claim 3 is formed on both left and right edges of each support bracket,
The outer rib located on the outer side in the vehicle width direction is formed to have a length reaching the vicinity of the tip of the support bracket at an outer position in the vehicle width direction from both left and right ends of the radiator, and the inner rib located on the inner side in the vehicle width direction does not reach the radiator. It is characterized by being formed with a short length.

[0013] In the invention of claim 5, claims 1 to 4 are provided.
A rib for pushing up and supporting the support bracket is formed between the lower surface of each support bracket formed from the resin reinforcement portion corresponding to the resin insertion portion described in the above section and the resin reinforcement portion. .

According to the sixth aspect of the present invention, the first to fifth aspects are provided.
A rib connected to the resin reinforcing portion on the rear side of the radiator core support lower is formed in the resin feeding portion below the radiator core support lower.

In the invention of claim 7, claims 1 to 6
A through-hole-shaped anchor portion is formed in a part of the radiator core support lower described in (1), and the resin feeding portion penetrates the radiator core support lower through the anchor portion.

In the invention of claim 8, claims 2 to 7
Wherein the resin reinforcing portion in the radiator core support lower is a plurality of oblique ribs that are continuous in the vehicle width direction while alternately changing directions between the upper and lower surfaces of the open cross section.

According to the ninth aspect of the present invention, the first to eighth aspects are provided.
Is characterized in that the radiator core support upper is made of metal.

According to the tenth aspect of the present invention, the radiator core support upper according to the ninth aspect has an open cross section opened to the rear side, and the vehicle is positioned within the open cross section of the radiator core support upper from the upper end of the coupling member. A resin reinforcing portion extending in the width direction is integrally formed.

According to the eleventh aspect, the tenth aspect is provided.
The resin reinforcing portion in the radiator core support upper described in (1) is a plurality of oblique ribs that are continuous in the vehicle width direction while alternately changing directions between the upper and lower surfaces of the open cross section.

According to the twelfth aspect of the present invention,
A hood lock stay is formed as a coupling member at a substantially central portion in the vehicle width direction described in 11, and a metal hood lock mounting portion is formed on the hood lock stay.

According to the invention of claim 13, claim 12 is
A bent portion is formed at the lower end of the hood lock mounting portion described in (1), and the bent portion is embedded in the hood lock stay.

In the invention of claim 14, claims 1 to
The radiator core support lower according to the thirteenth aspect is characterized in that a metal side portion to be connected to the front end of the front side member is formed.

According to the invention of claim 15, claim 14 is
As a coupling member coupled to the inner edge of the side portion described in the
It is characterized in that a pillar portion is formed.

According to the sixteenth aspect of the present invention, the fourteenth aspect
Alternatively, the radiator core support upper according to the present invention is characterized in that a lamp mounting portion for connecting between the left and right end portions and the side portion is formed.

[0025]

According to the first aspect of the present invention, a resin reinforcing portion extending outward from the lower end of the connecting member along the radiator core support lower in the vehicle width direction is formed, and a part of the resin reinforcing portion is formed. Because a resin bracket is formed and a support bracket that supports the radiator is formed from there,
The rigidity of the support bracket is high, and a sufficient anti-vibration effect can be obtained.

According to the invention described in claim 2, according to claim 1
In addition to the effect of the invention, the radiator core support lower has a rearward open cross section, and the support bracket is formed rearward as it is from the resin reinforcing portion formed inside the open cross section opened to the rear side. It is easy to form a structure for further improving rigidity between the reinforcing portion.

According to the third aspect of the invention, in addition to the effects of the first and second aspects, the rib for suspending and supporting the support bracket between the upper surface of each support bracket and the resin reinforcing portion. Is formed, the rigidity of the support bracket is further improved.

According to the invention described in claim 4, according to claim 3,
In addition to the effect of the invention, the outer rib has a length that reaches the tip of the support bracket, sufficiently increases the rigidity of the support bracket, and the inner rib has a length that does not interfere with the radiator,
The rigidity of the support bracket can be increased.

According to the invention described in claim 5, according to claim 1,
In addition to the effects of the inventions of (1) to (4), since a rib for pushing up and supporting the support bracket is formed between the lower surface of each support bracket and the resin reinforcing portion, the rigidity of the support bracket is further improved.

According to the invention described in claim 6, according to claim 1 of the present invention,
In addition to the effects of the inventions of (1) to (5), since a rib connected to the resin reinforcing portion on the rear side of the radiator core support lower is formed in the resin wrapping portion below the radiator core support lower,
The rigidity of the resin insertion portion itself is improved, and thus the rigidity of the support bracket is also improved.

According to the invention of claim 7, according to claim 1,
In addition to the effects of the inventions of (1) to (6), since the resin entanglement portion penetrates the radiator core support lower through the anchor portion, the rigidity of the resin entanglement portion itself is further improved, thereby increasing the support bracket. The stiffness is also improved.

According to the invention described in claim 8, according to claim 2
In addition to the effects of the seventh to seventh aspects, since a plurality of oblique ribs are formed in the open cross section of the radiator core support lower as the resin reinforcing portion, a lightweight and highly rigid radiator core support lower can be obtained.

[0033] According to the ninth aspect of the present invention, the first aspect is provided.
In addition to the effects of the eighth to eighth aspects, since not only the radiator core support lower but also the radiator core support upper is formed of metal, the overall rigidity of the radiator core support is further improved.

According to the tenth aspect, in addition to the effect of the ninth aspect, the resin reinforcing portion extends from the connecting member to the open cross section of the radiator core support upper, so that the connecting member and the radiator The integration with the core support upper is increased, and the overall rigidity is further improved. Further, since the resin reinforcing portion is stretched around the radiator core support upper, brackets integral with the resin reinforcing portion can be formed at necessary places.

According to the eleventh aspect, in addition to the effect of the tenth aspect, a plurality of oblique ribs are formed in the open cross section of the radiator core support upper as the resin reinforcing portion. A lightweight and rigid radiator core support upper can be obtained.

According to the twelfth aspect of the invention, in addition to the effects of the first to eleventh aspects, a hood lock stay is formed as a coupling member at a substantially central portion in the vehicle width direction of the radiator core support upper. Since the metal hood lock mounting portion is formed on the hood lock stay, the rigidity of the hood lock mounting portion is high, and flapping of the engine hood during traveling of the vehicle is prevented.

According to the thirteenth aspect, in addition to the effect of the twelfth aspect, since the bent portion formed at the lower end of the hood lock mounting portion is embedded in the hood lock stay, The downward load applied to the hood lock mounting portion can be reliably transmitted to the hood lock stay.

According to the fourteenth aspect, in addition to the effects of the first to thirteenth aspects, the radiator core support, the front side member and the radiator core support are formed by the metal side portions formed in the radiator core support lower. Can be firmly bonded.

According to the fifteenth aspect, in addition to the effect of the fourteenth aspect, the load in the vertical direction can be transmitted via the pillar portion, and the rigidity against the vertical load is improved. . Further, since the pillar portion is also connected to the inner edge of the side portion, the torsional rigidity around the side portion is also improved.

According to the sixteenth aspect of the invention, in addition to the effects of the fourteenth or fifteenth aspect, a lamp mounting portion connects between the left and right end portions of the radiator core support upper and the side portions. Due to the coupling, the torsional rigidity of the entire radiator core support is improved.

[0041]

Embodiments of the present invention will be described below in detail with reference to the drawings.

1 and 2, reference numeral 1 denotes a radiator core support, and reference numeral 2 denotes a vehicle body front structure. The radiator core support 1 is not attached to the vehicle body front structure 2 as a single unit. As shown in FIG. 2, the radiator core support 1 is previously mounted on the radiator core support 1 with a bumper 3, a bumper stay 4, a lamp 5, and a power steering oil cooler tube. 6,
It is attached to the vehicle body front structure 2 as a module in which the condenser 7, the radiator 8, the fan shroud 9 and the like are assembled.

As the vehicle body front structure 2, a pair of front side members 10 each having a closed cross section are formed on the left and right sides of the engine room E along the front-rear direction. A hood ridge panel 11 is formed above the outer side of the front side member 10, and a hood ridge reinforcement 12 is joined to the outside of the hood ridge panel 11 to form a closed cross section.

As shown in FIG. 3, the radiator core support 1 basically has a radiator core support upper 13 and a radiator core support lower 14 which extend in the vehicle width direction. The support upper 13 and the radiator core support lower 14 have a structure in which the central portions in the vehicle width direction are connected to each other by a hood lock stay 15 extending vertically as a connecting member. The radiator core support 1 has a portion made of metal (white portion in FIG. 3) and a portion made of resin (hatched portion in FIG. 3).

FIG. 4 shows only a portion made of metal. That is, the radiator core support upper 13
The hood lock mounting portion 16 welded to the center of the radiator core support upper 13, the radiator core support lower 14, and the side portions 17 welded to both ends of the radiator core support lower 14 are each made of metal. Others are made of resin. The hood lock mounting portion 16 is in a state where another object is mounted on the radiator core support upper 13, but may be formed integrally with the radiator core support upper 13. Similarly, the side portion 17 may be formed integrally with the radiator core support lower 14.

Each of the radiator core support upper 13 and the radiator core support lower 14 has an open cross-sectional shape having a hat-shaped cross-section opened to the rear side. When manufacturing the radiator core support 1, first, the radiator core support upper 13, the radiator core support lower 14, and the like are set in a cavity space formed between a pair of molds 18. The resin is injected into the empty space and molded.

The injection molded resin is used to join the hood lock stay 15 and the upper and lower radiator core support uppers 13 and the radiator core support lowers 14 including the inner edges of the side portions 17 as pillars 19 as connecting members. And a lamp mounting part 20 for coupling between the side part 17 and both ends of the radiator core support upper 13,
Mainly formed. Two radiator openings 35 are formed between the left and right pillar portions 19 and the hood lock stay 15.

Further, the resin formed by the injected resin is not limited to the portion which largely appears to the outside as described above.
There are also a plurality of oblique ribs (resin reinforcing portions) 21 and 22 which are stretched behind the open cross sections of the radiator core support upper 13 and the radiator core support lower 14. The oblique ribs 21 and 22 enter the open sections of the radiator core support upper 13 and the radiator core support lower 14 from the upper end and the lower end of the hood lock stay 15, and alternately turn between the upper and lower surfaces of the open section. It is formed continuously in the vehicle width direction up to a position reaching both ends in the vehicle width direction while changing.

Since such oblique ribs 21 and 22 are stretched inside the radiator core support upper 13 and the radiator core support lower 14, the unity of the metal portion and the resin portion is improved, and the radiator is lightweight and highly rigid. The core support upper 13 and the radiator core support lower 14 are obtained.

Both the upper and lower oblique ribs 21 and 22 are formed at an angle of 45 ° with respect to the longitudinal direction of the radiator core support lower 14, as in the example of the radiator core support lower 14 shown in FIG. . This angle is most effective in increasing the buckling strength and torsional rigidity of the radiator core support lower 14 and the like.

The upper and lower radiator core support upper 13 and the radiator core support lower 14 are
9, the load in the vertical direction can be transmitted not only through the hood lock stay 15 but also through the pillar portion 19, and the rigidity against the vertical load is improved. Further, since the pillar portion 19 is also connected to the inner edge of the side portion 17, the upper and lower sides and the horizontal portion are connected by the pillar portion 19, and the torsional rigidity around the side portion 17 is also improved.

Further, the radiator core support upper 13
Since the left and right ends and the side portion 17 are connected so as to be filled with the lamp mounting portion 20 having a complicated three-dimensional shape, the torsional rigidity of the entire radiator core support 1 is further improved.

Each oblique rib 2 in the radiator core support upper 13 and the radiator core support lower 14
An abutment 23 is formed at the center of each of the first and second 22.
The abutting portion 23 has a columnar shape having a diameter larger than the thickness of the oblique ribs 21 and 22, and the rear end surface is flat. As shown in FIG. 11, the abutting portion 23 is a portion pressed by the ejector pin 24 to remove the injection-molded oblique ribs 21 and 22 from the mold 18. The thin oblique ribs 21 and 22 that are easily broken when being removed from the mold 18 can also be prevented from being damaged when being removed from the mold 18 by pressing the abutting portion 23 formed at the center thereof.

That is, when the upper and lower ends of the open section are pushed by the ejector pins 24, the open sections of the radiator core support upper 13 and the radiator core support lower 14 are deformed in the opening direction, and both ends of the oblique ribs 21 and 22 are damaged. When the ejector pin 24 directly presses the metal portion at the bottom of the open cross section, the metal portion may be deformed. However, as in the present embodiment, the abutting portions 23 are formed on the oblique ribs 21 and 22. Then, the oblique ribs 21 and 22 are directly pushed out by the ejector pins 24 via the abutting portions 23, thereby avoiding breakage of the oblique ribs 21 and 22 at the time of removing the mold (a state remaining in the mold). it can.

The general portion of the hood lock stay 15 has a U-shaped cross section open to the rear as shown in FIGS. 5 and 6, but the front portion of the lower end has a rear portion. The radiator core support lower 14 is inclined to the side and connected to the rear end of the radiator core support lower 14. This is because the radiator core support lower 14 has a hat-shaped cross-section, and the radiator core support lower 14 needs to be sandwiched in the mold 18. Therefore, the cross-sectional shape of the lower end of the hood lock stay 15 is changed. For this reason, at the lower end of the hood lock stay 15, in order to prevent a decrease in rigidity due to a change in cross section,
Contrary to the general part, a forward facing flange 25 is formed at each of the left and right ends.

Since a metal hood lock mounting portion 16 is formed at the center of the radiator core support upper 13 corresponding to the upper end portion of the hood lock stay 15 in the vehicle width direction, the rigidity of the hood lock mounting portion 16 is increased. Although not shown, the engaging force of the hood lock mechanism attached thereto to the striker of the engine hood is improved, and flapping of the engine hood during traveling of the vehicle is prevented.

Further, a bent portion 26 is formed at the lower end of the hood lock mounting portion 16 as shown in FIG. 6, and the bent portion 26 is embedded in the upper end portion of the hood lock stay 15 made of resin. ing. Therefore, when the engine hood (not shown) is closed, the downward load applied to the hood lock mounting portion 16 can be transmitted to the hood lock stay 15 reliably.

Then, the radiator core support upper 1
The radiator core support lower 3 and the radiator core support lower 14 not only have diagonal ribs 21 and 22 formed inside the open cross section on the back side, but also have four locations on the radiator core support upper 13 and a hood lock stay 15 on the radiator core support lower 14. , Including the lower end portions of
29 (see FIGS. 8, 9, and 10). The resin insertion portions 27, 28 and 29 are provided on the oblique rib 2 on the back side.
The resin is also formed so as to wrap around from the first and the second to the front side, and surrounds the cross-sectional periphery of the radiator core support upper 13 and the radiator core support lower.

A part of the oblique ribs 21 and 22 formed on the back side of the radiator core support upper 13 and the radiator core support lower 14 wrap around to the front side, so that the resin feeding portion 2 is formed.
The formation of 7, 28, 29 further enhances the integrity of the metal portion and the resin portion.

At the bottom of the open section of the radiator core support upper 13 and the radiator core support lower 14 where the resin wrap-in portions 27, 28 and 29 are formed,
Each has a through-hole-shaped anchor portion 30 (see FIG. 8). Therefore, the resin feeding sections 27, 28, 29 are connected to the radiator core support upper 1 via the anchor section 30.
3 and the radiator core support lower 14, and the radiator core support upper 13 and the radiator core support lower 14 of the resin feeding portions 27, 28, 29 are formed.
The mounting rigidity is increased. Also, this anchor part 3
0 is the abutment 2 formed at the center of the oblique ribs 21 and 22.
3 and the abutment 2 corresponding to the anchor 30
3 also has increased rigidity.

Further, since the oblique ribs 21 and 22 are stretched from the hood lock stay 15 to the open cross sections of the radiator core support upper 13 and the radiator core support lower 14, the above-mentioned resin wrap-around portions 27, 28 and 29 are formed. In addition to this, brackets integral with the resin portion can be formed where necessary. For example, a support piece 31 for attaching a front grill (not shown) is formed on each of the four resin insertion portions 27 of the radiator core support upper 13 so as to protrude forward.

Further, the oblique rib 2 corresponding to the right resin wrap-in portion 29 formed on the radiator core support lower 14.
2, a support piece 32 for elastically supporting the power steering oil cooler tube 6 is formed.
3 is formed, and another support piece 34 is formed on the right pillar portion 19 as well.

Then, as shown in FIGS. 12 and 13,
From the oblique ribs 22 of the left and right resin wrap-around portions 29 provided on the radiator core support lower 14, rearward support brackets 36 are integrally formed at the same position as the lower side of the radiator core support lower 14. . The support bracket 36 is not horizontal, but has a slightly lower rear end. A circular hole 37 is provided at the center of the support bracket 36.
Are formed.

In the circular hole 37 of the support bracket 36,
The soft mount 38 is attached. The soft mount portion 38 is made of rubber which is easily elastically deformed, has a substantially cylindrical shape, and has a small-diameter step portion 38a at the lower portion. The soft mount portion 38 is mounted on the support bracket 36 with the step portion 38a inserted into the circular hole 37.

At the lower end of the radiator 8, a downward projection 3 is provided.
The protrusion 39 is inserted into the soft mount part 38. An upward projection 40 is formed at the upper end of the radiator 8, and this projection 40 is connected to the radiator core support upper 13 via the upper soft mount portion 41.
Are supported by a metal bracket 42 fastened to the bracket.

On both left and right sides of the lower support bracket 36, between the upper surface of the support bracket 36 and the oblique rib 22 corresponding to the resin wrapping portion 29, the support bracket 3 is provided.
An outer rib 43 and an inner rib 44 for suspending and supporting 6 are formed.

The outer rib 43 passes beside the left and right ends of the radiator 8 without interfering with the radiator 8.
The length reaches the tip of the support bracket 36. The inner rib 44 has a length that ends before the radiator 8 in order to avoid interference with the radiator 8.

Also, on the lower side of the support bracket 36, on the left and right sides thereof, the lower surface of the support bracket 36 and the radiator core support lower 1 continuously from the oblique rib 22.
Another rib 45 for pushing up and supporting the support bracket 36 is formed between each of the ribs 45 and a resin portion covering the lower end of the support bracket 4. Such formation of the ribs 43, 44, 45 on the upper and lower sides of the support bracket 36 is facilitated by the fact that the radiator core support lower 14 has a rearward open cross section and the support bracket 36 is formed toward the rear side. Has become.

In addition, another rib 46 is also provided between the resin wrapping portion 29 below the radiator core support lower 14 and the resin portion covering the lower end of the radiator core support lower 14. Is formed. As described above, the rigidity of the support bracket 36 is extremely increased by fixing the periphery of the support bracket 36 with the many ribs 43 to 46. In addition, the fact that the resin insertion portion 29 penetrates the radiator core support lower 14 via the anchor portion 30 also contributes to the improvement of the rigidity of the support bracket 36.

After the radiator core support 1 is modularized by incorporating the radiator 8 equipment as described above, as shown in FIG. 1, the radiator core support lower 1
4 are attached to the front end of the front side member 10 in the vehicle body front structure 2, and the left and right ends of the radiator core support upper 13 are connected to the hood in the vehicle body front structure 2. The ridge panel 11 is attached to a front end (not shown).

Radiator core support 1 of this embodiment
Is the radiator core support upper 13 as described above.
A hood lock stay 15 connecting the radiator core support lower 14 and the radiator core support lower 14 is formed of a resin molded together with the radiator core support lower 14 in a mold 18. The resin hood lock stay 15 prevents twist deformation and assembly dimensional error. Since the cause of the occurrence is eliminated, the work of attaching to the vehicle body front structure 2 as described above is also facilitated.

In particular, since the resin lock-in portion 28 is formed at the lower end of the hood lock stay 15, even if the hood lock stay 15 is made of resin as in the present embodiment, the connection with the radiator core support lower 14 can be achieved. The rigidity of the portion is improved, so that it is possible to withstand a downward impact applied to the radiator core support lower 14 from the hood lock stay 15.

Further, since the side portion 17 attached to the front side member 10 is formed of metal, the radiator core support 1 and the front side member 10 can be firmly connected.

Then, the radiator core support upper 1
Since the radiator core support 3 and the radiator core support lower 14 are also formed of metal, the overall rigidity of the radiator core support 1 is improved, and the sound vibration performance and steering stability of the vehicle body can be improved.

Further, on the rear side of the radiator core support 1 attached to the vehicle body front structure 2, a radiator 8 having a constant mass is supported by a support bracket 36 via a soft mount portion 38, so that dynamic A damper is configured to reduce idling vibration of the vehicle. In particular, in this embodiment, since the rigidity of the support bracket 36 is much larger than the spring constant of the soft mount portion 38, a sufficient dynamic damper effect can be obtained. Further, since the support bracket 36 has high rigidity, tuning of the dynamic damper effect by the soft mount portion 38 is easy.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a radiator core support and a vehicle body front structure.

FIG. 2 is a perspective view showing a radiator core support and components to be modularized.

FIG. 3 is a perspective view of a radiator core support in which a resin portion is shaded.

FIG. 4 is a perspective view showing only a metal part of the radiator core support.

FIG. 5 is a perspective view showing a rear portion of the hood lock stay viewed from a direction indicated by an arrow DA in FIG. 3;

FIG. 6 is a cross-sectional view of the hood lock stay taken along line SA-SA shown in FIG.

FIG. 7 is a side view showing an oblique rib in the radiator core support lower as viewed from a direction indicated by an arrow DB in FIG. 5;

FIG. 8 is a cross-sectional view of the radiator core support lower shown in a direction along the oblique rib as indicated by the line SB-SB shown in FIG.

FIG. 9 is a sectional view of the radiator core support upper taken along the line SC-SC shown in FIG. 3;

FIG. 10 is a sectional view of the radiator core support lower taken along line SD-SD shown in FIG. 3;

FIG. 11 is a cross-sectional view showing a state in which the abutting portion of the oblique rib is pushed out of the mold by an ejector pin.

FIG. 12 is a perspective view showing a portion of the radiator core support lower provided with a support bracket as viewed from a DC direction indicated by an arrow in FIG. 3;

FIG. 13 is a sectional view showing a state in which the radiator is supported by a support bracket.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Radiator core support 2 Body front structure 3 Bumper 4 Bumper stay 5 Lamp 6 Power steering oil cooler tube 7 Condenser 8 Radiator 9 Fan shroud 10 Front side member 11 Food ridge panel 12 Food ridge reinforcement 13 Radiator core support upper 14 Radiator core support lower 15 Hood lock stay (coupling member) 16 Hood lock mounting portion 17 Side portion 18 Mold 19 Pillar portion (coupling member) 20 Lamp mounting portion 21, 22 Diagonal rib (resin reinforcing portion) 23 Butt portion 24 Ejector pin 25 Forward Flange 26 Bent portion 27, 28, 29 Resin insertion portion 30 Anchor portion 31 Support piece (front grill) 32, 33, 34 Support piece (power steering oil cooler tube) 36 Support bracket 8,41 soft mount portion 43 outer ribs 44 inside the rib 45 rib 46 rib E engine

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B29K 105: 22 B29K 105: 22 B29L 31:18 B29L 31:18 F term (Reference) 3D003 AA01 AA06 AA11 AA18 BB02 CA04 CA09 CA18 DA04 DA14 DA15 3D038 AA02 AA10 AB01 AC01 AC06 AC13 4F206 AD03 AD35 AE07 AH16 AH17 JA07 JB12 JB20

Claims (16)

[Claims] 1. A radiator core support upper (13) and a radiator core support lower (14), which extend in the vehicle width direction, respectively, are provided above and below, and the radiator core support upper (13) and the radiator core support lower (1) are provided.
4) A radiator core support structure for a vehicle, wherein the radiator core support lower (14) is formed of metal, and at least the radiator core support lower (14) is formed of metal. ) Together with a resin molded in a mold (18), and a resin reinforcing portion (22) extending in a vehicle width direction along a radiator core support lower (14) from a lower end of the coupling member (15). Are integrally formed, and a part of the resin reinforcing portion (22) is provided on the resin reinforcing portion (22).
A resin bracket (29) surrounding the cross section of the radiator core support lower (14) is formed, and a support bracket for supporting the lower end of the radiator (8) from the resin framework (29). A radiator core support structure for a vehicle, wherein (36) is integrally formed. 2. A pair of resin entanglement portions in a state where the radiator core support lower (14) has an open cross section opened to the rear side and includes the resin reinforcement portions (22) on both left and right sides of the resin reinforcement portion (22). The support bracket (36) is formed toward the rear side from the resin reinforcing portion (22) at a portion corresponding to the resin wrapping portion (29). 2. The radiator core support structure for a vehicle according to 1. 3. A resin reinforcing portion (22) between an upper surface of each support bracket (36) formed from a resin reinforcing portion (22) at a portion corresponding to a resin feeding portion (29).
Ribs for suspending and supporting the support bracket (43, 44)
The radiator core support structure for a vehicle according to claim 1, wherein a radiator core support structure is formed. 4. Ribs are formed on both left and right edges of each support bracket (36), and outer ribs (43) located on the outside in the vehicle width direction are located outside the left and right ends of the radiator (8) in the vehicle width direction. The inner rib (44) located inward in the vehicle width direction has a short length that does not reach the radiator (8). The vehicle radiator core support structure according to claim 3. 5. A resin reinforcing portion (22) between a lower surface of each support bracket (36) formed from a resin reinforcing portion (22) at a portion corresponding to a resin feeding portion (29).
The rib (4) that pushes up and supports the support bracket (36)
The radiator core support structure for a vehicle according to any one of claims 1 to 4, wherein (5) is formed. 6. A rib (46) connected to a resin wrapping section (29) below the radiator core support lower (14) and to a resin reinforcement section (22) behind the radiator core support lower (14). 6. The method according to claim 1, wherein
A radiator core support structure for a vehicle according to any one of the above. 7. A through hole-shaped anchor portion (30) is formed in a part of the radiator core support lower (14), and a resin wrapping portion (29) is formed through the anchor portion (30) through the radiator core support. The radiator core support structure for a vehicle according to any one of claims 1 to 6, wherein the lower radiator (14) penetrates the lower (14). 8. The resin reinforcing portion (22) in the radiator core support lower (14) is a plurality of oblique ribs that are continuous in the vehicle width direction while alternately changing directions between upper and lower surfaces of an open cross section. The radiator core support structure for a vehicle according to any one of claims 2 to 7, wherein: 9. A radiator core support upper (13)
The radiator core support structure for a vehicle according to any one of claims 1 to 8, wherein is made of metal. 10. A radiator core support upper (1)
3) is an open section opened to the rear side, and a resin reinforcing portion (21) extending in the vehicle width direction from the upper end of the coupling member (15) in the open section of the radiator core support upper (13) is integrally formed. The radiator core support structure for a vehicle according to claim 9, wherein: 11. A radiator core support upper (1)
The resin reinforcing portion (21) in 3) is a plurality of oblique ribs that are continuous in the vehicle width direction while alternately changing directions between upper and lower surfaces of an open cross section.
6. A radiator core support structure for a vehicle according to claim 4. 12. A hood lock stay (15) is formed as a coupling member at a substantially central portion in a vehicle width direction, and a metal hood lock mounting portion (16) is attached to the hood lock stay (15).
The radiator core support structure for a vehicle according to any one of claims 1 to 11, wherein: 13. A bent portion (26) is formed at a lower end of the hood lock mounting portion (16), and the bent portion (26) is embedded in the hood lock stay (15). A radiator core support structure for a vehicle according to claim 12. 14. A radiator core support lower (14).
The radiator core support structure for a vehicle according to any one of claims 1 to 13, wherein a metal side portion (17) connected to a front end portion of the front side member (10) is formed on the radiator core support structure. 15. The radiator core support structure for a vehicle according to claim 14, wherein a pillar portion (19) is formed as a coupling member coupled to an inner edge of the side portion (17). 16. A radiator core support upper (1)
The radiator core for a vehicle according to claim 14 or 15, wherein a lamp mounting portion (20) for connecting between the left and right end portions of (3) and the side portion (17) is formed. Support structure.