JPH11348833A - Attaching structure for undercover for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure for an undercover for a vehicle, which can easily and surely attach an undercover to a predetermined position. SOLUTION: The body part 11 of a synthetic resin undercover 10 is integrally incorporated with engaging pawls 17, 18 for tacking, in the vicinity of a plurality of attaching holes 13, 14 formed in the body part 11, fit-in parts 26, 27 for receiving the engaging pawls 17, 18 are formed in a radiator panel frame 21 and an engine cross member 22 in a vehicle body 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle mounted on a vehicle body under an engine room, rectifies an air flow during traveling to suppress the generation of noise such as wind noise, and to control the flow of water into the engine room. The present invention relates to a mounting structure of a vehicle undercover for preventing entry of dust, pebbles, and the like.

[0002]

2. Description of the Related Art In the lower part of an engine room of a vehicle body, while rectifying an air flow during traveling to suppress noise generation,
In order to reduce the noise of the engine and the like from leaking out of the vehicle, and to prevent the intrusion of muddy water and dust into the engine room,
For example, a vehicle undercover as disclosed in Japanese Utility Model Laid-Open Publication No. 61-95632 has been conventionally mounted.

[0003] In recent years, this undercover has been
In accordance with demands for improving the quietness of the vehicle and reducing the air resistance, there may be used a motor having a large size so as to cover substantially the entire area below the engine room.

[0004]

The undercover for a vehicle is sufficient if it can exhibit functions such as prevention of noise generation, sound insulation, and air rectification, and does not play a role as a strength member of a vehicle body. Lightweight undercovers made of relatively thin synthetic resin materials have been widely used.

However, the size of the undercover increases and the weight of the undercover increases with the size of the undercover. When the undercover is attached to the vehicle body from below, particularly when attached by a single operator, the undercover may be damaged by its own weight. This makes it difficult to position and assemble the undercover with respect to the bent vehicle body.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the foregoing, and an object of the present invention is to provide an under cover having a required shape, dimensions and the like to a predetermined mounting position easily and securely by a single worker. It is an object of the present invention to provide a mounting structure for a vehicle undercover mounted on a vehicle.

[0007]

In order to achieve the above object, the invention of a vehicle under cover mounting structure according to claim 1 of the present invention has a plurality of mounting holes, and the mounting holes are provided through the mounting holes. In a mounting structure of a synthetic resin undercover that is mounted on a vehicle body so as to cover a lower side of an engine room, an engaging claw integrally formed on the undercover near the mounting hole of the undercover, And a fitting portion with which the engaging claw is engaged.

According to the first aspect of the present invention, the plurality of engaging claws made of synthetic resin are fitted into the respective fitting portions by their own elastic deformation, so that the undercover can be temporarily fixed to the vehicle body easily. In addition, by attaching each of the plurality of engaging claws to the vehicle body by engaging with the vehicle body based on its own elastic restoring and engaging with the fitting portion based on the elastic restoring force, With the engagement force, it is possible to eliminate the possibility that the undercover may accidentally fall off the vehicle body, or be displaced.

In addition, since the engaging claw is formed near the mounting hole, the work of temporarily fixing the undercover can be performed.
The mounting hole can be positioned with high precision in a mounting portion on the vehicle body side, for example, a welding nut, a bolt insertion hole, or the like, and the subsequent fixing or fixing operation of the undercover can be easily performed.

According to a second aspect of the present invention, in the vehicle undercover mounting structure of the first aspect, the engaging claw is
The under cover is formed near the mounting holes provided on the front end side and the rear end side of the under cover.

According to the second aspect of the present invention, even if the undercover covers the entire lower side of the engine compartment, the undercover is generally shorter in the front-rear direction than the vehicle width, so that one undercover is provided. When the operator engages the engaging claw of the under cover supported by both hands with his / her fingers in the fitting portion, it is advantageous to provide the engaging claw at the end portion in the front-rear direction with a small size in order to increase the working efficiency.

According to a third aspect of the present invention, in the vehicle undercover mounting structure according to the first or second aspect, the fitting portion formed in the vehicle body is a through-hole whose central axis extends vertically. Each of the engaging claws is provided with an elastically deforming portion accompanying the insertion into the through hole.

According to the third aspect of the present invention, an operator supporting the undercover can temporarily fix the undercover only by applying an upward external force larger than the elastic force of the engaging claw, and the The action of external force in the front-rear direction, the left-right direction, and the like becomes unnecessary, and the temporary fixing operation can be performed more easily and quickly.

According to a fourth aspect of the present invention, in the vehicle undercover mounting structure of the second or third aspect, a pair of the engaging claws facing each other with the mounting hole interposed therebetween is formed.

According to the fourth aspect of the present invention, the engagement of the engaging claw with the vehicle body can be stably enhanced by forming the pair of the front end side engaging claw as the main engaging claw.
Since the pair of engaging claws are located across the mounting hole, the accuracy of the undercover, and thus the temporary fixing position of the mounting hole, can be further improved.

According to a fifth aspect of the present invention, in the vehicle undercover mounting structure of the fourth aspect, the pair of engaging claws on the front end side of the undercover are spaced apart in the width direction of the undercover. In a plurality of locations.

According to the fifth aspect of the present invention, since the engagement claws are formed at a plurality of positions at intervals in the width direction of the undercover, the engagement force of the undercover with the vehicle body and the positioning accuracy with respect to the vehicle body are further enhanced. be able to.

According to a sixth aspect of the present invention, in the vehicle undercover mounting structure of the first to fifth aspects, the engaging claw on the rear end side of the undercover is a hinge portion along the rear edge of the undercover. And is formed so as to protrude rearward through the base member.

According to the sixth aspect of the present invention, the engaging claw is moved upward by approximately 90 degrees to the upper side of the under cover via the self hinge portion.
The original function can be exhibited by bending it many times, but when the undercover is formed, it is located on substantially the same plane as the undercover main body, so that the structure of the forming cavity can be simplified and the forming operation can be simplified. To facilitate.

Moreover, the engaging claws projecting rearward of the undercover make it easy for the operator to visually recognize the position of the engaging claws from the lower surface side of the undercover, so that the through-holes of the holding claws on the vehicle body side are provided. Can be inserted more smoothly.

According to a seventh aspect of the present invention, in the undercover mounting structure of the first to sixth aspects, at least one viewing window is provided in the undercover, and the viewing window is closed by an opening / closing lid. Features.

According to the seventh aspect of the present invention, inspection of auxiliaries and other necessary parts from the viewing window can be performed after completion of outfitting work on the vehicle or without removing the undercover during normal inspection work or the like. By closing the viewing window with an opening / closing lid that can be usually composed of a rubber plate, a plastic plate, a rubberized canvas, etc., the intrusion of muddy water, dust, pebbles, etc. into the engine room can be effectively performed. Can be prevented.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vehicle undercover according to the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a synthetic resin undercover 10 made of a synthetic resin having dimensions so as to cover substantially the entire area below the engine room of the vehicle body. The portion 11 has a relatively flat shape in the front-rear direction, and each of the flange portions 1 faces upward along both sides.
2 are formed.

At each of the front and rear end portions of the main body portion 11, two mounting holes 13 and 14 are provided.
The arm 1 is pierced at a symmetrical position with respect to the center line C, and projects further upward from each upward flange portion 12.
5 are extended, and one mounting hole 16 is formed in the upper part of each arm 15 so that the center axis extends in a substantially horizontal direction.

At a position near each of the mounting holes 13 at the front portion, a pair of engaging claws 17 which sandwich the mounting holes 13 from the left and right directions in the drawing are integrally formed by projecting upward from the main body portion 11. At the distal end portions of these two engaging claws 17, there are provided projections 17a for retaining, which project in the directions facing each other, and at least the projections 17a are formed between the base end and the projections 17a. It is formed so as to be elastically deformable to the side opposite to the side, that is, the side away from each other.

The projections 17 formed on each locking claw 17
“a” may be formed so as to protrude in a direction opposite to that shown in the drawing, that is, on the sides away from each other.

On the other hand, at a position near the mounting hole 14 on the rear side, it protrudes rearward through a self-hinge portion 19 along the rear end edge of the main body portion 11 so as to be in a plane substantially at the same position as the main body portion 11. The engaging claw 18 is integrally formed on a center line C passing through the center of both mounting holes 14, and the engaging claw 18 is moved upward by at least approximately 9 by deformation of the self hinge portion 19.
It is formed so that it can be bent by 0 degrees. The engaging claw 18 has a hollow shape in which the outer ring portion has a substantially arrowhead shape, and can perform elastic deformation in a direction in which the width thereof is reduced.

By providing the engaging claw 18 on the main body 11 via the self-hinge portion 19, the original function described later can be exhibited by bending the engaging claw 18 upward by approximately 90 degrees. , Under cover 10
During molding, since it is located on substantially the same plane as the main body 11, the molding cavity of a molding device, for example, an injection molding device, can be simplified, and the molding operation is facilitated.

FIG. 2 is a schematic perspective view of a main part of the undercover 10 constructed as described above together with the vehicle body 20. In the figure, reference numerals 21, 22, and 23 denote radiator panel frames and engine mount crosses, respectively, as vehicle body side members. Members and side frames.

The radiator panel frame 21 located in the front-rear direction of the undercover 10 is provided with a mounting portion corresponding to the mounting hole 13 and a fitting portion for allowing the engagement claws 17 to be fitted. The engine mount cross member 22 is provided with a mounting portion corresponding to each of the mounting holes 14 and a fitting portion allowing the fitting of the engaging claw 18. The side frame 23 has a mounting hole 16 of the arm 15. , A clip insertion hole 24 is provided here.

The mounting portion of the radiator panel frame 21 is provided with a bolt insertion hole 21a at a position corresponding to the mounting hole 13 as shown in a sectional view of the radiator panel frame 21 taken along the line AA in FIG. The welding nut 25 is fixed to correspond to the bolt insertion hole 21a. Further, the fitting portion can be constituted by a through-hole 26 which penetrates in a vertical direction allowing insertion while each pair of engaging claws 17 are elastically deformed in a direction away from each other. The projection 17a of the engaging claw 17 is locked to the edge of each through hole 26 to prevent the under cover 10 from falling off.

By forming each through hole 26 in this manner, when each pair of engaging claws 17 is inserted into each through hole 26 as shown by a virtual line in FIG. The relative displacement of the radiator panel frame 21 in the illustrated left-right direction is effectively prevented by the engagement between one of the engaging claws 17 and the hole edge of one of the through holes 26. The mounting hole 13 of the cover 10 can be positioned with high precision with respect to the bolt insertion hole 21a of the radiator panel frame 25 and the welding nut 25.

On the other hand, engine mount cross member 2
2, a bolt insertion hole (not shown) formed in a jack-up plate 27 provided in a central portion of the engine mount cross member 22, as shown in FIG.
And a welding nut 28 fixed corresponding to the bolt insertion hole, and a fitting portion is formed by a through hole 29 which is located between the welding nuts 28 and extends vertically in the left and right direction as shown in FIG. .

When the undercover 10 is temporarily fixed to the vehicle body 20, for example, as shown in FIG. 4A, the front and rear portions of the undercover 10 are supported from below by one operator's hand. First, each engaging claw 17 formed at the front end portion is inserted into each through hole 26 of the radiator panel frame 21 with an upward pressing force.

As a result, most of the weight of the undercover 10 is supported by the engagement between the engagement claws 17 and the hole edges of the through holes 26, and then the engagement projecting substantially horizontally to the rear side of the undercover 10. While visually confirming the position of the claw 18, the engaging claw 18 is moved upward by approximately 9 degrees with the operator's thumb TH, for example, as shown in FIG.
It is bent at 0 degree, and then the position of the engagement claw 18 is changed to the thumb TH.
The engaging claw 18 is pushed into the through hole 29 of the jack-up plate 27 from below, and the engaging claw 18 is elastically deformed in the width direction thereof so that the engaging claw 18 is in the through hole 29 to the base position. To temporarily lock the under cover 10 by restoring the locking claw 18 and locking the hole to the edge of the through hole 29.

Thereafter, the front part of the under cover 10 is fixed to the radiator panel frame 21 by bolts 31 which are inserted through the mounting holes 13 formed in the front part of the under cover 10 and screwed into the welding nuts 25 of the radiator panel frame 21. Similarly, the rear portion of the undercover 10 is fixed to the engine mount cross member 22 by bolts 32 which are inserted from the mounting holes 14 and screwed to the welding nuts 28 provided on the jack-up plate 27, and are attached to the arms 15. The clip 33 is inserted into the side frame 23 by the clip 33 through the drilled mounting hole 16.
4 to secure the undercover 10 to the vehicle body 2.
Firmly fix to the 0 side.

In this case, the mounting hole 1 of the under cover 10
3, 14 and 16, especially the mounting holes 13 and 14, are provided with engaging claws 17 and 18 provided in the vicinity thereof, so that each welding nut 2
The positioning of the under cover 10 with high accuracy makes it easy to fix or fix the under cover 10 and the integrity of the under cover 10 with each member on the vehicle body 20 side. In addition, it is possible to prevent chipping, wind noise, and the like caused by floating and the like, and to effectively eliminate the possibility of an increase in air resistance.

FIG. 5 is a perspective view showing another embodiment of the vehicle under cover 10. The same reference numerals are given to the portions corresponding to those in FIG. 1 and the detailed description is omitted. A required number of visible windows 35 are provided in a required portion of the main body portion 11, for example, a front side portion, and the visible windows 35 are opened and closed, for example, one side is fixed to the upper surface side of the main body portion 11 by rivets or other means. It is closed by a flexible plate 36 such as a rubber plate or a plastic plate.

FIG. 6 is a cross-sectional view taken along the line BB of FIG. 5 showing a state in which the undercover 10 is attached to the vehicle body 20.
Since the main body 11 is provided with the viewing window 35 provided with the opening / closing lid by the flexible plate 36, for example, in the final process of the outfitting line, etc., the connection state of the various hydraulic pipes H1 and H2, the arrangement of the auxiliary devices and the like Can be easily performed through the viewing window 35 by opening the viewing window 35 for pushing up the flexible plate 36 with the under cover 10 attached.

The flexible plate 36 closes the viewing window 35 based on its own weight when no external force is applied to the flexible plate 36, so that muddy water, dust and the like can be prevented from entering the engine room. Can be sufficiently prevented.

In the above description, the under cover 10 is fixed to the radiator panel frame 22, the engine mount cross member 22, and the side frame 23. However, the under cover 10 can be attached to another vehicle body member. The present invention is not limited to the above, and can be variously changed without departing from the spirit of the present invention.

[0043]

According to the vehicle undercover mounting structure of the present invention described above, each of the temporary fixing claws having elasticity inherent to the synthetic resin material is fitted into the fitting portion on the vehicle body side. Even if the size, weight, etc. of the undercover increase, the undercover can be temporarily and easily fixed to the vehicle body easily by one worker.
By fitting the plurality of engaging claws, it is possible to effectively prevent accidental dropping and displacement of the temporarily fixed undercover. Further, by forming the engaging claw near the mounting hole of the undercover, the mounting hole of the undercover can be positioned with high precision with respect to the mounting portion on the vehicle body side during the temporary fixing, and the undercover mounting work can be performed. This is a great contribution to the automotive manufacturing field.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a mounting structure of a vehicle under cover according to the present invention.

FIG. 2 is a perspective view showing a main part of an under cover.

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

FIG. 4 is an explanatory view showing an operation of attaching an under cover.

FIG. 5 is a perspective view showing another embodiment of the mounting structure of the vehicle under cover according to the present invention.

6 is a sectional view taken along the line BB in FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Undercover 11 Main body part 12 Flange part 13 Mounting hole 14 Mounting hole 15 Arm 16 Mounting hole 17 Engagement claw 17a Projection 18 Engagement claw 19 Self-hinge part 21 Radiator panel frame 22 Engine mount cross member 23 Sand frame 24 Clip insertion Hole 25 Welding nut 26 Through hole 27 Jack-up plate 28 Welding nut 29 Through hole 35 Viewing window 36 Flexible plate

Claims (7)

[Claims] 1. A mounting structure for a synthetic resin undercover having a plurality of mounting holes and mounted on a vehicle body so as to cover a lower side of an engine room via the mounting holes, in the vicinity of the mounting hole of the undercover. A mounting structure for an undercover for a vehicle, comprising: an engaging claw formed integrally with the undercover; and a fitting portion formed on the vehicle body and engaged with the engaging claw. 2. The vehicle undercover mounting according to claim 1, wherein the engagement claws are formed in the vicinity of the mounting holes provided on a front end side and a rear end side of the undercover. Construction. 3. The fitting portion formed in the vehicle body is a through hole whose central axis extends in a vertical direction, and each engaging claw has an elastic deformation portion accompanying the insertion into the through hole. The mounting structure of a vehicle undercover according to claim 1 or 2, wherein 4. The mounting structure for a vehicle undercover according to claim 2, wherein a pair of the engaging claws are formed so as to face each other with the mounting hole interposed therebetween. 5. The vehicle according to claim 4, wherein the pair of engaging claws on the front end side of the undercover are formed at a plurality of locations spaced apart in the width direction of the undercover. Under cover mounting structure. 6. An engaging claw on a rear end side of the under cover is formed to protrude rearward through a hinge portion along a rear end edge of the under cover.
6. The mounting structure of the vehicle undercover according to 5. 7. The vehicle undercover mounting structure according to claim 1, wherein at least one viewing window is provided in the undercover, and the viewing window is closed by an opening / closing lid.