JP5030657B2 - Air guide structure for vehicles - Google Patents

Description

  The present invention relates to a vehicle air guide structure.

Conventionally, a resin vehicle air guide is provided to project from the radiator core support side of the radiator core support to the front side of the vehicle for the purpose of guiding the vehicle wind and preventing hot air from blowing back from the engine room. Is known (see Patent Documents 1 and 2).
Further, an elastic member made of urethane or the like is attached to the vehicle front side edge portion of such a vehicle air guide to ensure a sealing property with the vehicle body side.
JP 2003-306047 A JP 2003-104235 A

  However, since the vehicle air guide of the conventional invention is formed of a solid resin and is inferior in flexibility, it is necessary to provide the above-described separate elastic member, which increases the weight and the number of parts, and increases the manufacturing cost. There was a problem of up.

  The present invention has been made in order to solve the above-described problems, and the object of the present invention is to achieve excellent sealing performance with respect to the vehicle body without using a separate elastic member. A vehicle air guide structure is provided.

  According to a first aspect of the present invention, in the vehicle air guide structure made of resin and extending in the vehicle vertical direction in a state of projecting from the radiator core support side of the radiator core support to the vehicle front side, the vehicle air The guide has a hollow structure in which pillars and spaces are alternately arranged between two skins.

  In the invention according to claim 1 of the present invention, in the resin air guide structure made of resin extending in the vehicle vertical direction in a state of projecting from the radiator core support side of the radiator core support to the vehicle front side, Since the vehicle air guide has a hollow structure in which pillars and spaces are alternately arranged between two skins, it is lightweight and flexible, and it can be sealed against the vehicle body without using a separate elastic member. The performance can be improved.

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

Example 1 will be described below.
The vehicle front-rear direction and the vehicle width direction will be described as the front-rear direction and the left-right direction.
1 is an exploded perspective view showing a vehicle air guide structure according to a first embodiment of the present invention, FIG. 2 is a perspective view thereof, FIG. 3 is a perspective view of a radiator core support according to the first embodiment, and FIGS. 3 is a perspective view showing a vehicle air guide of Example 1. FIG.
6 is an enlarged view of the vicinity of the upper end of the vehicle air guide according to the first embodiment, FIG. 7 is a cross-sectional view (partially) taken along line S7-S7 in FIG. 4, and FIGS. 8 and 9 are vehicle air guides and radiators. It is a figure explaining fixation of a core support.

First, the overall configuration will be described.
As shown in FIGS. 1 and 2, the vehicle air guide structure according to the first embodiment includes a radiator core support 1 and vehicle air guides 20 and 21.

  As shown in FIG. 3, the radiator core support 1 includes a radiator core support upper 2 extending in the left-right direction, a radiator core support lower 3 in parallel with the radiator core support upper 2, and the radiator core support upper 2 and the radiator core support. A hood lock stay 4 for connecting the central portions of the lower 3, and radiator core support sides 5 and 6 for connecting both ends of the radiator core support upper 2 and the radiator core support lower 3 are provided.

  The radiator core support upper 2 has a substantially rectangular pipe-like rectangular cross section and is formed of a metal upper center portion 2a extending to the left and right, and is connected to both ends of the upper center portion 2a and is open to the lower side. The upper side portions 2b and 2c are made of metal and have a U-shaped cross section and extend obliquely rearward.

  Further, the upper portions of the corresponding metal side member attaching portions 7 and 8 are coupled to the base end side of the upper side portion 2a via the bracket B1.

  The radiator core support lower 3 is made of metal and has a substantially rectangular pipe-like rectangular cross section like the radiator core support upper 2 and extends in the vehicle width direction. The lower parts of the parts 7 and 8 are joined.

  The hood lock stay 4 is made of resin and is formed in a substantially flat plate shape. The upper and lower ends of the hood lock stay 4 are joined to the central portion of the radiator core support upper 2 and the central portion of the radiator core support lower 3 in a resin-molded state. .

  The radiator core support sides 5 and 6 are made of resin in the same manner as the hood lock stay 4, and their upper and lower ends are joined in a resin-molded state to both ends of the radiator core support upper 2 and both ends of the radiator core support lower 3. In addition, a substantially U-shaped cross section that opens to the front side is formed and extends in the vehicle vertical direction, and a plurality of flat ribs 9 are formed inside the substantially U-shaped cross section.

  In addition, openings R1 and R2 for introducing wind into a heat exchanger (not shown) mounted on the rear side of the radiator core support 1 are formed on both sides of the hood lock stay 4.

  In the first embodiment, the radiator core support upper 2, the radiator core support lower 3, and the side member mounting portions 7 and 8 are made of metal, and the hood lock stay 4 and the radiator core support sides 5 and 6 are made of resin. The whole may be made of resin or metal.

  As shown in FIGS. 4 and 5, the vehicle air guides 20 and 21 are symmetrically shaped members that are integrally formed of resin and open to the front side at the center of the front end side. A rectangular opening 13 is formed.

  In addition, a plurality of locking claws 14 projecting outward in a substantially L shape are spaced apart at predetermined intervals in the vertical direction on the rear end side of the vehicle air guides 20 and 21 (three in the first embodiment). Is formed.

As shown in FIGS. 6 and 7, the vehicle air guides 20 and 21 are hollow in which column portions 24 and spaces 25 extending in the vertical direction are alternately arranged between the two skins 22 and 23. It is constructed of a structure, which makes it lighter and at the same time has excellent flexibility in the left-right direction. Further, the column part 24 of the first embodiment is formed in a straight line in a direction orthogonal to the skins 22 and 23.
Note that the thickness and interval of each part of the vehicle air guides 20 and 21 can be set as appropriate.

  As shown in FIGS. 4 and 5, a plurality of slits 26 are provided in the front edge, the upper edge, and the lower edge of each of the vehicle air guides 20 and 21, respectively. A plurality of refracting portions 27 that can be refracted in the direction are formed.

  Moreover, in the present Example 1, the space | interval of the slit 26 in the front side edge part except the circumference | surroundings of the opening part 13 of each vehicle air guide 20 and 21 is formed more widely than another site | part, Thereby, each vehicle The refracting portion 27a at the front side edge portion excluding the periphery of the opening 13 of the air guides 20 and 21 is more flexible than the refracting portion 27b at other portions.

Next, the operation will be described.
In order to mount the vehicle air guides 20 and 21 thus configured on the radiator core support 1, as shown in FIGS. 8 and 9, the respective locking claws 14 of the vehicle air guides 20 and 21 correspond respectively. The radiator air core 20 is supported by the radiator core support 1 by holding the air guide 20 in a state where the air core 20 is held between the opposing inner walls of the U-shaped cross section in the space defined by the ribs 9 of the radiator core support sides 5 and 6. Attach to.
In addition, about the detailed shape and fixing position of the latching claw 14, it can set suitably.

  Therefore, as shown in FIG. 1, the vehicle air guide 20 mounted on the radiator core support 1 has the vehicle air guides 20 and 21 projecting from the radiator core support sides 5 and 6 of the radiator core support 1 to the front side of the vehicle. In this state, the vehicle is extended in the vertical direction.

  Further, as shown in FIG. 9, the radiator core support 1 to which the vehicle air guide 20 is mounted is fastened with bumper stays 16 at the side member mounting portions 7 and 8, and a bumper armature 17 is attached to the pan pasty 16. The vehicle air guides 20 and 21 are fixed in a state of passing through the openings 13.

  At this time, the refracting portions 27a of the vehicle air guides 20 and 21 can be sealed by being brought into close contact with the metal bumper armature 17 while being refracted in the vehicle width direction.

Further, a heat exchanger (not shown) is mounted on the vehicle body side together with a fan (not shown) in a state of facing the openings R1, R2 of the radiator core support 1.
The heat exchanger may be mounted on either the vehicle front side or the vehicle rear side of the radiator core support 1.

Further, a resin bumper fascia having a complicated shape, not shown, is arranged on the vehicle front side edge except for the vicinity of the opening 13 of each of the vehicle air guides 20 and 21, and a vehicle bumper fascia is shown on the vehicle vertical side edge. An outer metal body frame is arranged.
At this time, the refracting portions 27a of the vehicle air guides 20, 21 can be satisfactorily adhered to the bumper fascia while being refracted in the vehicle width direction.

  Therefore, as described above, in each of the air guides 20 and 21 for the vehicle, the rigidity of the refracting portion 27a excluding the periphery of the opening 13 is higher than that of the refracting portion 27b in other portions. The armature 17 and the vehicle body frame can be sealed in a strong contact state, and at the same time, the resin bumper fascia can be sealed in a weak contact state. be able to.

Further, the heat exchanger of the radiator core support 1 performs heat exchange by passing vehicle running wind or forced air from a fan through the openings R1 and R2 through the core.
At this time, the vehicle air guides 20 and 21 function as a wind guide plate that rectifies the vehicle traveling wind or the forced wind generated by the fan and smoothly guides it to the front of the heat exchanger.
Moreover, it functions as a windbreak plate that prevents hot air on the engine side from blowing back mainly from the side of the vehicle to the front of the heat exchanger.

Next, the effect will be described.
As described above, in the vehicle air guide structure according to the first embodiment, the radiator core support 1 extends in the vehicle vertical direction in a state of projecting from the radiator core support sides 5 and 6 toward the vehicle front side. In the resin air guide structure made of resin, the vehicle air guides 20 and 21 are formed of a hollow structure in which the column portions 24 and the spaces 25 are alternately arranged between the two skins 22 and 23, so that the light weight and flexibility are achieved. The sealing performance with the vehicle body can be improved without using a separate elastic member.

  In addition, since the column portions 24 and the spaces 25 of the vehicle air guides 20 and 21 are extended in the vehicle vertical direction, the vehicle air guide 20 and 21 can be more easily bent in the vehicle width direction, and the sealing performance with the vehicle body side (mainly bumper fascia) can be improved It does not act as a rigid body at the time of a vehicle collision, and is suitable.

  In addition, a plurality of slits 26 are provided at least on the vehicle-side front edge of the vehicle air guides 20 and 21 to form a refracting portion 27 that can be refracted in the vehicle width direction, and the refracting portion 27 is in close contact with the vehicle body side. Since the sealing is performed, the sealing performance with the vehicle body can be further improved without using a separate elastic member.

Example 2 will be described below.
In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, the description thereof will be omitted, and only differences will be described in detail.

  10 is an overall perspective view showing the air guide structure for a vehicle according to the second embodiment of the present invention, FIG. 11 is a perspective view of the air guide structure for the vehicle according to the second embodiment of the present invention, and FIG. It is an expanded view of an air guide structure.

  13 is an enlarged development view of the sandwiching portion of the second embodiment, FIG. 14 is a cross-sectional view taken along line S14-S14 in FIG. 11, and FIG. 15 is an arrow A1 view in FIG.

  As shown in FIG. 10, in the vehicle air guide structure of the second embodiment, the left and right symmetrical airframes 30 for the vehicle are guided diagonally forward from the left and right sides of the same radiator core support 1 as described in the first embodiment. Each is provided in a state of projecting toward.

  Specifically, as shown in FIG. 11, the vehicle air guide 30 includes a first vertical surface portion 31 that extends obliquely outward and a rear end portion of the first vertical surface portion 31 at a predetermined angle. And has a second vertical surface portion 32 extending in the front-rear direction and a connection surface portion 33 that connects the upper and lower ends of the vertical surface portions 31 and 32 with a horizontal surface, and is formed into a three-dimensional shape. Thereby, the overall rigidity is improved as compared with the first embodiment.

  When manufacturing the vehicle air guide 30 structure configured as described above, first, as shown in FIG. 12, a flat plate-like material having column portions 24 extending in the vertical direction as in the first embodiment. Is cut out into a predetermined shape.

  At this time, as shown in FIG. 13, the sandwiching portions 34 extending in a band shape from the upper and lower end portions that become the first vertical surface portions 31 are formed, and the opening 35 a is formed in the middle portion of each sandwiching portion 34. deep.

  In addition, the eye direction of the column part 24 (illustrated by a two-dot chain line) of the sandwiching part 34 is inclined with respect to the extending direction of the sandwiching part 34 (folding direction described later).

  In addition, an opening 35 b is formed in the vicinity of the upper and lower ends of the second vertical surface portion 32.

  Further, as shown in FIG. 12, an opening 35 c is formed at an appropriate position of the second vertical surface portion 32.

  Furthermore, the refraction parts 36a to 36e (illustrated by a one-dot chain line) that are thinner than other parts are formed at appropriate portions of the material. The refracting portions 36a to 36e can be easily formed by dissolving the material while applying heat or by making a notch on one side of the skin.

  Then, both the vertical surface portions 31 and 32 are refracted at a predetermined angle by the refracting portion 36a, and then each sandwiched portion 34 is refracted inside the both vertical surface portions 31 and 32 by the refracting portion 36b, and as shown in FIG. The connecting surface portion 33 is formed by inserting and fixing to the opening portion 35a of the sandwiching portion 34 through the opening portion 35b of the second vertical surface portion 32 while refracting the distal end side 34a of the sandwiching portion 34 by the refracting portions 36c to 36e. It can be formed into a three-dimensional shape.

  Accordingly, since the vehicle air guide 30 according to the first embodiment is a product package in an unfolded shape, the packaging shape is very good, and the distribution cost can be reduced.

  Moreover, since it is assembled by a simple operation without using a fastening means such as a screw or an adhesive, workability is good.

  Further, since the eye direction of the column part 24 of the sandwiching part 34 is inclined with respect to the folding direction, it is possible to firmly fix the sandwiching part 34 and improve the rigidity of the peripheral portion. The surface portion 31 and the second vertical surface portion 32 can be firmly maintained at a predetermined angle.

  Further, as shown in FIG. 15, the eye direction of the column part 24a of the connection surface part 33 becomes a direction that becomes stiff against a stress that reduces the predetermined angle between the vertical surface parts 31 and 32, which is preferable. .

  As shown in FIG. 10, the vehicle air guide 30 configured as described above has a second vertical pipe and the like of peripheral members such as the heat exchanger 37 mounted on the radiator core support 1, as in the first embodiment. The opening portion 35 c of the surface portion 32 is inserted and arranged.

  The vehicle air guide 30 guides the vehicle traveling wind or the forced wind by a fan (not shown) to the heat exchanger 37.

  At this time, the connection surface portion 33 can prevent the first vertical surface portion 31 that has received the vehicle traveling wind from being refracted rearward, so that the state can be maintained, and fluttering of the vehicle air guide 30 and deterioration of durability can be prevented.

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 a scope not departing from the gist of the present invention are included in the present invention.
For example, the overall shape of the vehicle air guide can be appropriately changed according to the vehicle body side.

In the first embodiment, the strength of the refracting portion is set to be strong by changing the slit interval, but the slit depth may be changed.
Similarly, the hollow structure of the refracting portion that comes into contact with the bumper fascia may be crushed to near the depth of the slit so as to be weakened and have low rigidity.

  In the first embodiment, the vehicle air guides are provided on both the left and right sides of the radiator core support 1, respectively, but may be provided only on one side.

  Furthermore, although the case where the column part 24 of the first embodiment is formed linearly in a direction perpendicular to the skin has been described, as shown in FIG. 16, the column part inclined so that the space 25 has a trapezoidal shape. For example, 24 can be used.

It is a disassembled perspective view which shows the air guide structure for vehicles of Example 1 of this invention. It is a perspective view which shows the air guide structure for vehicles of Example 1 of this invention. It is a perspective view of the radiator core support of the first embodiment. It is a perspective view which shows the air guide for vehicles of the present Example 1. FIG. It is a perspective view which shows the air guide for vehicles of the present Example 1. FIG. It is an enlarged view of the upper end part vicinity of the air guide for vehicles of the present Example 1. FIG. It is sectional drawing (only a part) in the S7-S7 line | wire of FIG. It is a figure explaining fixation of the air guide for vehicles, and a radiator core support. It is a figure explaining fixation of the air guide for vehicles, and a radiator core support. It is a whole perspective view which shows the air guide structure for vehicles of Example 2 of this invention. The perspective view of the air guide structure for vehicles of Example 2 of the present invention. It is an expanded view of the air guide structure for vehicles of the present Example 2. It is an expansion expanded view of the clamping part of the present Example 2. FIG. It is sectional drawing in the S14-S14 line | wire of FIG. It is arrow A1 figure of FIG. It is a figure explaining the pillar part of the other Example.

Explanation of symbols

R1, R2 opening 35a
DESCRIPTION OF SYMBOLS 1 Radiator core support 2 Radiator core support upper 2a Upper center part 2b, 2c Upper side part 3 Radiator core support lower 4 Hood lock stay 5, 6 Radiator core support side 7, 8 Side member attaching part 9 Rib 13 Opening 35a
14 Locking claw 15 Locking piece 16 Bumper stay 17 Bumper armature 20, 21 Air guide 30 for vehicle
22, 23 Skin 24, 24a Column 25 Space 26 Slit 27, 27a, 27b Refraction part 30 Air guide 31 for vehicle First vertical surface part 32 Second vertical surface part 33 Connection surface part 34 Clamping part 35a, 35b, 35c Opening part 36a, 36b, 36c, 36d, 36e Refraction part 37 Heat exchanger

Claims (7)

In the resin air guide structure made of resin extending in the vehicle vertical direction in a state of projecting from the radiator core support side of the radiator core support to the vehicle front side,
A vehicle air guide structure, wherein the vehicle air guide has a hollow structure in which columns and spaces are alternately arranged between two skins. An air guide structure for a vehicle according to claim 1 Symbol placement,
A vehicle air guide structure in which a column portion and a space of the vehicle air guide are extended in a vehicle vertical direction.

The vehicle air guide structure according to claim 1 or 2,
A plurality of slits are provided in at least the vehicle-side front edge of the vehicle air guide to form a refracting portion that can be refracted in the vehicle width direction, and the refracting portion is in close contact with the vehicle body side and sealed. Air guide structure for vehicles. The vehicle air guide structure according to claim 1 or 2,
A first vertical surface portion extending forward of the vehicle air guide;
A second vertical surface portion extending at a predetermined angle from a rear end portion of the first vertical surface portion;
An air guide structure for a vehicle having a three-dimensional shape formed by connecting upper end portions or lower end portions of both vertical surface portions to each other. The air guide structure for a vehicle according to claim 4,
The connection surface portion is formed by folding back a pinching portion extending in a band shape from an end portion of one of the two vertical surface portions, and folding and fixing to the other vertical surface portion. Air guide structure. The air guide structure for a vehicle according to claim 5,
An air guide structure for a vehicle, wherein the eye direction of the pillar portion of the sandwiching portion is inclined with respect to the folding direction of the sandwiching portion. In the vehicle air guide structure according to any one of claims 4 to 6,
An air guide structure for a vehicle characterized in that at least the eye direction of the columnar portion of the connection surface portion is stiff against a stress that reduces a predetermined angle between the two vertical surface portions.