JP2007331453A - Radiator core support - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radiator core support adaptable to a site requiring tensile strength higher than compression strength while eliminating manufacturing cost for a fortifying member. <P>SOLUTION: In part of the resin radiator core support 1, the fortifying member (a metal wire 11) is insert-molded and integrally provided which is formed by knitting a plurality of linear members 11a and which has tensile strength higher than vertical compression strength. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an automotive radiator core support.

2. Description of the Related Art Conventionally, a radiator core support technique in which a stiffening member made of a binder in which a plurality of linear members are insert-molded is integrally formed on a resin-made radiator core support is known (Patent Document 1). reference).
JP 2001-293745 A

  However, in the conventional invention, there is a problem that the material cost of the binder and the temperature management for welding the binder and the radiator core support at the time of injection molding are required, and the manufacturing cost is increased.

In addition, although the strength of the portion where the stiffening member is provided is improved, since there is almost no coupling force between the individual linear members and the binder, for example, when a tensile force acts on both, each linear member and the binder Bonds are easily broken.
Therefore, there has been a problem that it is not possible to deal with a part that requires a higher tensile strength than the compressive strength, such as a hood lock stay.

  The present invention has been made to solve the above-mentioned problems, and the object of the present invention is to eliminate the manufacturing cost of the stiffening member and to cope with a part that requires a higher tensile strength than the compressive strength. It is to provide a radiator core support that can.

  According to the first aspect of the present invention, a stiffening member formed by knitting a plurality of linear members on a part of a resin radiator core support and having a higher tensile strength than the compressive strength in the vertical direction. Is integrally formed by insert molding.

  In the first aspect of the present invention, a part of the resin-made radiator core support is formed by knitting a plurality of linear members, and has a higher tensile strength than the compressive strength in the vertical direction. Since the stiffening member is integrally formed by insert molding, the manufacturing cost of the stiffening member can be eliminated, and it is possible to cope with a portion that requires a higher tensile strength than the compressive strength.

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

Example 1 will be described below.
1 is a front view showing a radiator core support according to a first embodiment of the present invention, FIG. 2 is a perspective view thereof, FIG. 3 is a perspective view of a hood lock according to the first embodiment, and FIG. 4 is a hood lock plate according to the first embodiment. FIG. 5 is a front view of the metal wire of the first embodiment.

First, the overall configuration will be described.
As shown in FIGS. 1 and 2, a radiator core support 1 according to the first embodiment includes a radiator core support upper 2 extending in the vehicle width direction, a radiator core support lower 3 parallel to the radiator core support upper 2, and a radiator core. Radiator core support sides 4 and 4 that connect both ends of the support upper 2 and the radiator core support lower 3, and a hood lock stay 5 that connects the center portions of the radiator core support upper 2 and the radiator core support lower 3 are provided. All except the hood lock plate 8 and the metal wire 11 described later are made of resin.

  Fan shroud portions 6 and 6 are provided inside the radiator core support upper 2, the radiator core support lower 3, the radiator core support sides 4 and 4, and the hood lock stay 5.

In addition, fixing portions B1 for fixing the corresponding vehicle mounting pins of the heat exchanger (not shown) from the front side via brackets and insulators not shown are formed on the left and right ends of the radiator core support upper 2. On the other hand, fixing portions B2 for fixing the corresponding vehicle mounting pins of the heat exchanger via the insulators are formed at the left and right ends of the radiator core support lower 3.
Further, fan openings O1 and O1 are formed in the fan shrouds 6 and 6 for disposing a fan (not shown) facing the rear side.

  At the center of the radiator core support upper 2, a metal hood lock plate 8 for mounting a metal hood lock 7 described later is fixed.

As shown in FIG. 3, the hood lock 7 includes a main body 7 a, a latch 7 b that engages with a striker of the hood in a fully closed state of the engine hood (not shown), and restrains the hood in the fully closed state, When the hood is in the half-open state, the secondary latch 7c and the release lever 7d are engaged with the striker to restrain the hood in the half-open state, and when the hood is in the fully-closed state, the secondary latch 7c is attached in the engagement direction. And a spring S which is energized as a main component.
In addition, a total of three insertion holes 7e are provided in the left and right ends of the main body 7a, while an insertion hole 7f is provided in the lower central part.

As shown in FIG. 4, the hood lock plate 8 includes a front side plate 9 and a rear side plate 10.
The front side plate 9 is fixed at a predetermined position in the center portion of the radiator core support upper 2 by inserting rivets (not shown) through two through holes 9a formed in the lower portion thereof, and a hood lock on the upper portion thereof. A pin 9b arranged in a state of being inserted into the 7 insertion hole 7f is fixed by welding outside the figure.
On the other hand, the rear side plate 10 is fixed at a predetermined position in the center portion of the radiator core support upper 2 by inserting rivets (not shown) through a plurality of through holes 10a formed in the respective portions, and at the left and right end portions thereof. The bolts 10b for fixing the hood lock 7 are formed by inserting bolts (not shown) from the corresponding insertion holes 7e of the hood lock 7.

  As shown in FIG. 1, inside the hood lock stay 5, three metal wires 11 (stiffening stiffeners) each having a length that reaches right above the radiator core support lower 3 from directly below the front plate 9. Member) is integrally formed by insert molding at predetermined intervals in the left-right direction.

As shown in FIG. 5, the metal wire 11 has a characteristic that the tensile strength is higher than the compressive strength in the vertical direction by forming a plurality of metal linear members 11 a by knitting. Yes.
Note that the number, length, diameter, arrangement, etc. of the metallic wires 11 can be set as appropriate. Similarly, the material of the linear member 11a and the number of braids can be set as appropriate.

Next, the operation will be described.
When the radiator core support 1 configured as described above is manufactured, a metal wire 11 is placed in advance in an injection molding die (not shown), and a resin as a material for the radiator core support 1 is used for injection molding. By filling the mold, the metal wire 11 is integrally formed by insert molding.
At this time, the resin filled in the injection mold is integrated in a state of entering between the linear members 11 a of the metal wire 11, thereby realizing a firm bonding force with the metal wire 11. .

  Therefore, compared to the conventional invention, the material cost of the binder and the temperature management for welding the binder and the radiator core support at the time of injection molding become unnecessary, and the manufacturing cost can be kept low.

The radiator core support 1 configured as described above has a hood lock plate 8 and a hood lock 7 fixed to a predetermined position in the center portion of the radiator core support upper 2 and in front of the fan openings O1 and O1. A heat exchanger (not shown) is mounted from the side, and a fan (not shown) is mounted from the rear side.
At this time, the lower side of the hood lock 7 is fixedly supported by the pin 9b of the front side plate portion 9 inserted through the insertion hole 7f, while the left and right sides are inserted into the insertion hole 7e and the bolt hole 10 of the rear side plate 10. It is fixedly supported by a fixed bolt (not shown).

  Further, when the radiator core support 1 is mounted on the vehicle, the latch 7b of the hood lock 7 is engaged with a striker of the hood, not shown, and the hood is restrained in a fully closed state.

  When the vehicle travels, it receives a force that lifts the hood upward due to wind pressure. As a result, it pulls the periphery of the central portion of the radiator core support 1 upward through the hood striker, the hood lock 7 and the hood lock plate 8. Force acts.

  On the other hand, when the hood is fully opened by operating the release lever 7d and then lowered again to the fully closed state, the center of the radiator core support 1 via the hood striker, hood lock 7 and hood lock plate 8 is used. A force that compresses the periphery of the part downward acts.

  Accordingly, an upper tensile strength and a downward compressive strength are required around the center of the radiator core support 1. With respect to this compressive strength, the downward force is distributed over the entire radiator core support upper 1. There is a requirement that you do not want to be as high as possible to satisfy the requirement.

  On the other hand, in the radiator core support 1 according to the first embodiment, as described above, inside the hood lock stay 5, specifically, directly below the front plate 9, respectively, directly above the radiator core support lower 3. Since the metal wire 11 (stiffening member) having a length to reach is integrally formed by three insert moldings at predetermined intervals in the left-right direction, it is strong in the pulling direction of the metal wire and in the compression direction. The above requirement can be satisfied by taking advantage of its weakness.

  Further, since the resin around the metal wire 11 is integrated in a state of entering between the linear members 11 a, the metal is not affected even when an excessive tensile force is generated around the center portion of the radiator core support 1. While both the wire 11 and the resin can be stretched to maintain strength, the metal wire 11 can be restored to its original length without plastic deformation below a predetermined pressure, and has high durability against repeated stress.

  In addition, although it is a supplement, when the linear member is insert-molded integrally with the hood lock stay as in the conventional invention, the linear member and the resin (binder) are used regardless of the presence or absence of the binder. Therefore, when an excessive tensile force is generated around the center portion of the radiator core support upper, the linear member does not follow the resin.

Next, the effect will be described.
As described above, in the invention of the first embodiment, a part of the resin-made radiator core support 1 is formed by knitting a plurality of linear members 11a and has a compressive strength in the vertical direction. Since the stiffening member (metal wire 11) having a higher tensile strength is integrally formed by insert molding, the manufacturing cost of the stiffening member (metal wire 11) can be eliminated without requiring a binder. In addition, it is possible to cope with a portion that requires a high tensile strength compared to the compressive strength.

  Further, since the stiffening member (metal wire 11) is formed by knitting a plurality of linear members 11a, the bonding force with the surrounding resin can be made firm, and in particular, the tensile strength can be improved.

  Further, since a part of the radiator core support 1 is the hood lock stay 5, it is preferable to provide a stiffening member (metal wire 11) on the hood lock 5 which is required to have a higher tensile strength than the compressive strength.

  Further, since the stiffening member is made of the metal wire 11, it is possible to form an inexpensive and suitable stiffening member by taking advantage of the property that the metal wire is strong in the pulling direction and weak in the compression direction.

Although the present embodiment has been described above, the present invention is not limited to the above-described embodiment, and design changes and the like within the scope not departing from the gist of the present invention are included in the present invention.
For example, the stiffening member is not limited to a metal wire, and may be formed by knitting carbon or glass linear members alone or in combination.
In addition, the hood lock plate 8 of the first embodiment is composed of the two members of the front plate 9 and the rear plate 10, but these two are integrally formed and insert-molded into the radiator core support 1. And may be provided integrally.
Further, at this time, the upper end portion of the metal wire 11 is welded and fixed to the hood lock plate 8 so that the force from the hood can be directly transmitted, and the initial responsiveness when stress is applied is improved. Can do.

It is a front view which shows the radiator core support of Example 1 of this invention. It is a perspective view which shows the radiator core support of the present Example 1. FIG. It is a perspective view of the hood lock of the present Example 1. It is a perspective view of the hood lock plate of the first embodiment. It is a front view of the metal wire of the first embodiment.

Explanation of symbols

B1, B2 Fixing portion O1 Fan opening S Spring 1 Radiator core support 2 Radiator core support upper 3 Radiator core support lower 4 Radiator core support side 5 Hood lock stay 6 Fan shroud portion 7 Hood lock 7a Body 7b Latch 7c Secondary latch 7d Release Lever 7e Insertion hole 8 Hood lock plate 9 Front side plate 9a Through hole 9b Pin 10 Rear side plate 10a Through hole 10b Bolt hole 11 Metal wire 11a Linear member

Claims (3)

  A part of a resin radiator core support is formed by knitting a plurality of linear members, and a stiffening member having a higher tensile strength than the compressive strength in the vertical direction is integrally formed by insert molding. Radiator core support characterized by In the radiator core support according to claim 2,
A radiator core support, wherein a part of the radiator core support is a hood lock stay. In the radiator core support according to claim 1 or 2,
A radiator core support, wherein the stiffening member is a metal wire.