JP5475361B2 - Ventilation structure of vehicle bumper - Google Patents

Description

  The present invention relates to a wind guide structure for a vehicle bumper in which a vehicle body mounting portion and at least one cooling air introduction opening are formed in a portion covered by a license plate of a bumper body extending in the vehicle width direction.

  In an automobile, a cooling air introduction opening is formed in a bumper body of a front bumper, so that cooling air during traveling may be introduced into a radiator or an engine room. In this case, in order to prevent deterioration in appearance due to the opening being exposed to the outside, the opening may be formed in a portion covered by a license plate attached to the bumper body (for example, Patent Documents). 1).

  In order to prevent the appearance from deteriorating, a vehicle body attachment portion for attaching the front bumper to the vehicle body may be formed in a portion covered with the license plate of the bumper body.

JP 2005-289200 A

  By the way, when the opening and the vehicle body mounting portion are formed in the portion covered by the license plate of the bumper body as in the conventional case, the rigidity of the vehicle body mounting portion is insufficient due to the opening, and consequently Bumper mounting rigidity may be reduced. That is, from the viewpoint of improving the cooling performance, it is conceivable to increase the opening area as much as possible.

  On the other hand, if the opening area of the opening is increased, the introduced cooling air tends to stay in the engine room, so that sufficient cooling is applied to the part to be actively cooled, for example, the discharge hose of the air conditioner or the exhaust manifold of the engine. Wind may not be introduced.

  The present invention has been made in view of the above-described conventional situation, and an object of the present invention is to provide a wind guide structure for a vehicle bumper that can secure the rigidity of a vehicle body mounting portion and can introduce sufficient cooling air.

According to the first aspect of the present invention, a license plate is attached to a bumper body that extends in the vehicle width direction and is disposed on the front end surface of the vehicle body, and the bumper body is attached to a portion of the bumper body that is covered by the license plate . An air guide structure for a vehicle bumper in which a vehicle body attachment portion and at least one cooling air introduction opening are formed, wherein one of the cooling air introduction openings is below the vehicle attachment portion, And a guide bead for guiding the cooling air to the cooling air introduction opening is provided between the one cooling air introduction opening and the vehicle body mounting portion. It is characterized by that.

  According to the wind guide structure according to the present invention, one opening for introducing cooling air is disposed below the vehicle body mounting portion and along the lower edge of the license plate, and the opening, the vehicle body mounting portion, Since the guide bead for guiding the cooling air is provided between the cooling plate, the cooling air flowing from the side of the license plate can be actively guided to the opening by the guide bead. Thus, cooling air having a sufficient air volume and speed can be introduced into the engine room. As a result, the opening area can be reduced while improving the cooling performance, the rigidity of the vehicle body mounting portion can be ensured, and as a result, the mounting rigidity of the bumper to the vehicle body can be ensured.

  Further, since the guide bead is formed between the opening and the vehicle body mounting portion, the guide bead functions as a reinforcing portion that increases the rigidity of the vehicle body mounting portion, and the bumper mounting rigidity can also be improved in this respect.

It is a perspective view of the bumper for vehicles by Example 1 of the present invention. It is a front view of the bumper. It is a front view of the license plate attachment part of the said bumper. It is sectional drawing (IV-IV sectional view taken on the line of FIG. 2) of the said bumper. It is sectional drawing (VV sectional view taken on the line of FIG. 3) of the opening for cooling air introduction | transduction of the said bumper. It is sectional drawing (the VI-VI line sectional drawing of FIG. 3) of the said bumper.

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

  1 to 6 are views for explaining a wind guide structure of a vehicle bumper according to a first embodiment of the present invention.

  In FIG. 1, reference numeral 1 denotes a front bumper arranged so as to be positioned on a front end surface of a vehicle body of an automobile. The front bumper 1 has a bumper main body 1a extending in the vehicle width direction, and left and right side portions 1b and 1b extending bent backward from the left and right edges of the bumper main body 1a.

  The front bumper 1 is attached to a radiator support 2 disposed at a front end portion of a vehicle body constituting an engine room.

  The radiator support 2 includes left and right side members 3 and 3 that extend in the vehicle vertical direction, an upper member 4 that extends between the upper ends of the left and right side portions 3 and extends in the vehicle width direction, and a lower end. The lower member 5 extending in the vehicle width direction is combined with the lower member 5 so as to form a rectangular shape.

  A bumper-in hose 6 extending in the vehicle width direction is coupled to the front surfaces of the left and right side members 3. The bumper hose 6 is disposed so as to be close to the central portion of the back surface of the bumper body 1a in the vertical direction, and increases the rigidity against an external force from the front of the bumper body 1a.

  Further, an upper end portion of a hood lock rein hose 7 extending in the vertical direction is coupled to a central portion in the vehicle width direction of the upper member 4, and a lower end portion of the hood lock rein hose 7 is a back surface of the bumper rein hose 6. Is bound to.

  A radiator 8 is disposed between the hood lock rein hose 7 and the right side member 3 as viewed from the front of the vehicle, and the radiator 8 is attached to the upper member 4 and the lower member 5.

  A hood 10 that opens and closes the engine room is disposed above the radiator support 2. The rear end of the hood 10 is rotatably supported by a vehicle body frame (not shown), and a striker 9 attached to the center of the front end 10a in the vehicle width direction is attached to the hood lock rein hose 7. The hood lock lever 12 is detachably locked (see FIG. 4).

  The bumper main body 1 a is formed so as to extend greatly downward following the front edge portion 10 a of the hood 10. Headlight mounting portions 1d and 1d are formed in the left and upper right sides of the bumper body 1a, and fog lamp mounting holes 1e and 1e are formed in the left and lower right portions.

  Further, an elongated traveling wind inlet 1g extending in the vehicle width direction is formed in the upper portion of the bumper body 1a.

  A license plate mounting portion 1i and a radiator grill portion 1j are continuously formed in the lower portion of the bumper body 1a so as to extend in the vehicle width direction. The radiator 8 is disposed behind the radiator grill 1j.

  Left and right attachment portions 1k and 1k are formed on the upper edge portion 1c of the bumper body 1a so as to bend and extend rearward from the upper edge portion 1c. The left and right attachment portions 1k are attached to the upper wall surface 4a of the upper member 4 by clips (not shown) attached to the respective attachment holes 1m (see FIG. 1).

  A license plate 15 is attached to the license plate attachment portion 1i of the bumper body 1a so as to cover the attachment portion 1i from the front. A gap s is provided between the license plate 15 and the license plate mounting portion 1i through which the traveling wind can flow.

  A portion of the license plate mounting portion 1i of the bumper body 1a covered with the license plate 15 includes a vehicle body mounting portion 1n for mounting the bumper body 1a to the hood lock rein hose 7, and two first and first Two cooling air introduction openings 1p and 1q are formed, and have the following structure in detail.

  The license plate mounting portion 1i is formed in a concave shape behind the general surface of the bumper body 1a. A pair of left and right license plate mounting seats 1r and 1r are formed on the upper side of the license plate mounting portion 1i, and the license plate 15 is bolted and fixed to the left and right license plate mounting seats 1r. .

  A plurality of slit portions 1r extending in the vehicle width direction are formed between the license plate mounting seats 1r, 1r of the license plate mounting portion 1i, and a plurality of slit portions 1r extending in the vehicle width direction are formed on the left side of the license plate mounting portion 1i. The slit portion 1t is formed.

  The vehicle body attachment portion 1n is formed at the center in the vertical direction of the license plate attachment portion 1i and between the first opening 1p and the right license plate attachment seat 1i. The vehicle body attachment portion 1n is formed so as to protrude rearward and is fixed to the lower end portion of the hood lock rein hose 7 by a clip 16 attached to the attachment hole 1n 'of the vehicle body attachment portion 1n. (See FIG. 4).

  The first cooling air introduction opening 1p is formed in the central portion of the license plate mounting portion 1i, and has a size over substantially the entire area of the central portion.

  The second cooling air introduction opening 1q is formed below the vehicle body attachment portion 1n and along the lower edge 15a of the license plate 15.

  The second opening 1q is formed as a long hole extending in the vehicle width direction, and is arranged so that the lower edge of the second opening 1q is close to the lower edge 15a of the license plate 15. As a result, the cooling air b flowing from below the lower edge 15a of the license plate 15 is introduced into the second opening 1q.

  A cylindrical portion 1u extending rearward is integrally formed at the opening edge of the second opening 1q. As shown in FIG. 5, the cylindrical portion 1u is formed in a tapered shape so that the opening area becomes smaller toward the rear, and an exhaust manifold (not shown) disposed at the rear of the discharge hose of the air conditioner in the engine room or the engine. It is formed so as to be directed to the figure.

  Between the second cooling air introduction opening 1q and the vehicle body mounting portion 1n, there are three guide beads 1x for guiding the lateral cooling air a flowing from the side of the license plate 15 into the second opening 1q. It is formed so as to extend in a substantially vertical direction.

  Each guide bead 1x is formed so as to incline toward the lower left so that the lateral cooling air a flowing in from the gap s flows toward the second opening 1q, and has a predetermined interval in the vehicle width direction. Are arranged.

  According to the present embodiment, the second cooling air introduction opening 1q is disposed below the vehicle body mounting portion 1n and along the lower edge 15a of the license plate 15, and the second opening 1q and the vehicle body Since a plurality of guide beads 1xa for guiding the cooling air a to the opening 1q are formed between the mounting portions 1n, the lateral cooling air a flowing in from the side of the license plate 15 during traveling is opened by each guide bead 1x. Cooling air having a sufficient air volume and speed can be introduced into the engine room with the cooling air b flowing from below the lower edge 15a of the license plate 15. As a result, the opening area can be reduced while improving the cooling performance, the rigidity of the vehicle body attachment part 1n can be ensured, and the attachment rigidity of the front bumper 1 to the radiator support 2 can be ensured. Incidentally, it is possible to reduce the opening area to 1/3 to 1/4 compared with the conventional one without changing the air volume.

  In the present embodiment, since the plurality of guide beads 1x are formed between the second opening 1q and the vehicle body attachment portion 1n, each guide bead 1x functions as a reinforcing portion that increases the rigidity of the vehicle body attachment portion 1n. From this point, the mounting rigidity of the front bumper 1 can be improved.

  In the present embodiment, the second opening 1q has a long hole shape extending in the vehicle width direction, a cylindrical portion 1u extending rearward is formed in the second opening 1q, and the cylindrical portion 1u is connected to an air conditioner. Since it is arranged so as to be directed to the discharge hose and the exhaust manifold of the engine, cooling air with a high flow rate can be concentrated and supplied to a part having a high temperature, and the cooling performance can be improved from this point.

  In the above-described embodiment, the second cooling air introduction opening 1q has a slit shape extending in the vehicle width direction, but the shape of the opening of the present invention is not limited to this, and may be a circular shape or a square shape. .

DESCRIPTION OF SYMBOLS 1 Front bumper 1a Bumper main body 1n Car body attaching part 1q 2nd cooling wind introduction opening (one cooling wind introduction opening)
1x Guide beads 15 License plate 15a Lower edge a Cooling air

Claims (1)

Mounting a license plate to the bumper body extending in the vehicle width direction is disposed on the front end face of the vehicle body, the vehicle body attachment portion of the the portion covered by the license plate for mounting the bumper body to a vehicle body of the bumper body and at least one An airflow guiding structure for a vehicle bumper formed with an opening for cooling air introduction,
One of the cooling air introduction openings is disposed below the vehicle body attachment portion and along the lower edge of the license plate,
An air guide structure for a bumper for a vehicle, wherein a guide bead for guiding cooling air to the cooling air introduction opening is provided between the one cooling air introduction opening and the vehicle body mounting portion.

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