JP3367243B2 - Lower body structure of car - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lower vehicle body structure of an automobile in which an undercover can be commonly used and a jack-up point portion is extended on a bracket forming a part of the undercover.

[0002]

2. Description of the Related Art In general, a so-called jack-up point portion is provided at a lower portion of a vehicle body for inspecting and repairing a lower portion of the vehicle body or repairing a puncture of a tire because the vehicle is jacked up.

9 to 12 show a jack-up point portion provided at a front portion of an automobile having a frame structure. 9 and 10
The jack-up point section 10 is shown in FIG.
1 is provided. Engine mount member 100
The front end portion is fixed to the substantially central portion of the front cross member 103 provided at the lower portion of the front end portion of the vehicle body 102 by joining or the like, and an inverted trapezoidal jack-up is formed on the lower surface side of the front end portion of the engine mount member 100. Point 1
01 is projected. On the rear side of the front cross member 103, a pair of under covers 104 are provided on both sides of the engine mount member 100 in order to protect devices such as a radiator in the engine room.

On the other hand, the engine mount member 100 may not be provided in the case of a rear engine type automobile or when the engine is mounted on the cross member. FIGS. 11 and 12 show an automobile of a type in which the engine mount member 100 is not provided, and the jack up point portion 105 is provided on the lower side of the front cross member 103. Both ends of the front cross member 103 are supported by an apron side member (not shown), and the jack-up point portion 10 is provided on the lower side of the front cross member 103.
An inverted trapezoidal bracket 106, which is No. 5, is joined.

In this case, since the pair of undercovers 107 arranged on the rear side of the front cross member 103 does not have the engine mount member 100, a gap 108 is formed between the undercovers 108, so that rainwater can be generated. May be blown into the engine room. Therefore, in order to close the gap 108 between the undercovers 107, it is necessary to join the undercovers 107 with each other by using separate parts or to extend one of the undercovers 107 to close the gap 108. 109 is a jack.

[0006]

As described above, according to the prior art, the structures of the undercovers 104 and 107 are different between a vehicle having the engine mount member 100 and a vehicle having no engine mount member 100. The engine mount member 100 cannot be used in common with a vehicle.

The present invention solves the above-mentioned problems, and by providing a jack-up point portion on a bracket that closes the gap of the under cover, it is possible to prevent water and the like from entering the engine compartment, and at the same time, for vehicles with an engine mount member. It is an object of the present invention to provide a lower vehicle body structure of an automobile in which the undercover can be commonly used in the case of 1) and the case of a vehicle having no engine mount member.

[0008]

In order to solve the above problems, the present invention provides a pair of left and right undercovers on the rear side of a front cross member, and a pair of undercovers is provided between the undercovers.
The vehicle bottom structure which is disposed a gasket, between the under cover mutually connected at the rear of the bracket, the front portion of the bracket is fixed by extending the lower surface of the front cross member, the lower the front portion There is a jack-up point part that protrudes to the side . Also,
The present invention includes a pair of left and right on the rear side of the front cross member.
Undercovers are provided and a bra is placed between the undercovers.
In the lower body structure of the automobile in which the racket is arranged,
Make an opening in the center of the bracket and
-Connect each other at the rear of the bracket and
Fixed by extending the front part to the lower surface of the front cross member
And the jack-up point that protrudes downward on the front part
There is a toe section.

[0009]

[Function] The undercovers are connected to each other with a bracket. This bracket has an extension that is fixed to the lower surface of the front cross member, and the jack-up point is provided on the lower surface of this extension. By using it, the gap between the undercovers can be closed and a jack-up point portion can be provided.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. 1 and 2 show a lower body structure of an automobile according to the present invention. In FIGS. 1 and 2, reference numeral 1 is a vehicle body, 2 is a front cross member provided between apron side members 3 forming a frame of the vehicle body 1, and 4 is a left and right pair disposed on the rear side of the front cross member 2. A bracket 6 provided with a jack-up point portion 5 is provided between the undercovers 4. The jack-up point portion 5 is an under cover portion 9 of the bracket 6 which will be described later.
The front end of the front cross member 2 is provided with an extension portion that extends toward the lower surface side of the front cross member 2.

As shown in FIGS. 3 to 5, the bracket 6 is formed by pressing a plate 8 having an opening 7 formed in the center thereof. The bracket 6 is formed with a stepped portion such that the front portion is high and the rear portion is low, and the jack-up point portion 5 that is projected downward in an inverted trapezoidal shape is formed in an intermediate portion on the front side. A trapezoidal undercover portion 9 is formed on the upper side at an intermediate portion on the rear side. Flange portions 10 are provided on both sides of the bracket 6, and the screw holes 11 and 12 are formed in the flange portions 10.
Are formed. A nut 13 is welded to the plate surface of the flange portion 10 corresponding to the screw hole 12 on the rear side. The bracket 6 is screwed to the front cross member 2 by screwing a screw 14 and a nut 15 into the screw hole 11 in the front portion, and the screw 16 is inserted into the screw hole 12 in the rear portion and screwed into the nut 13. As a result, it is fixed to the left and right undercovers 4. A bead 17 is formed between the screw holes 11 in the jack-up point portion 5 of the bracket 6, and a bead 18 is formed in the front and rear directions on the left and right flange portions 10.

The bracket 6 is formed by pressing a rectangular plate 8 having an opening 7 formed in the center thereof as shown in FIG. 6, and the left and right vertical dimensions a and b are the same. I am using.

Next, the operation of the present invention having the above configuration will be described with reference to FIG.
The description will be made with reference to FIG. The undercover portion 9 of the bracket 6 is arranged between the left and right undercovers 4. Then, the screw holes of the under cover 4 and the screw holes 12 of the bracket 6 are aligned with each other and the screw 1 is inserted into each screw hole.
6 is inserted and screwed into the nut 13. In this way, the gap between the undercovers 4 can be closed. Next, a screw 14 is inserted into a screw hole 11 in the front portion of the bracket 6 and a screw hole (not shown) of the front cross member 2 and is screwed into a nut 15 so that the front cross member 2 is attached to the front of the bracket 6. Screw the part. Thus, the undercover 4
And the front cross member 2 can be connected.

When the car is jacked up using the garage jack 19, the dish portion 20 of the garage jack 19 is inserted below the jack-up point portion 5,
The comb-shaped edge 21 is inserted into the opening 7 of the bracket 6. Thus, when the garage jack 19 is operated, the plate portion 2
By 0, the jack-up point portion 5 is lifted up, and the front portion of the vehicle body 1 can be raised.

According to the above embodiment, the gap between the undercovers 4 can be closed by the bracket 6, so that the gap between the undercovers 4 can be easily closed even in the case of a vehicle without an engine mount member. .
Further, since the jack-up point portion 5 is provided on the bracket 6, it is not necessary to provide the jack-up point portion 5 on the front cross member 2. Therefore, the under cover 4 can be commonly used in a vehicle having an engine mount member and a vehicle having no engine mount member. Further, the bracket 6 has a bead 17,
Since 18 is provided, the strength of the bracket 6 can be improved.

[0016]

As described above, according to the lower body structure of an automobile of the present invention, the following effects can be obtained. In claim 1, a pair of left and right undercover provided on the rear side of the front cross member, said undercover
The vehicle bottom structure which is disposed a bracket between bars mutually, between the under cover mutually connected at the rear of the bracket <br/> DOO, the front portion of the bracket extends to the lower surface of the front cross member Fixed in place and downward on the front
Since the jack-up point portion projecting to the side is provided, the gap between the under covers can be easily closed even in the case of a vehicle without an engine mount member. Further, since the bracket has the jack-up point portion, it is not necessary to provide the front cross member with the jack-up point portion. Therefore, the undercover can be commonly used in the case of the vehicle having the engine mount member and the case of the vehicle having no engine mount member.
The left side of the front cross member according to claim 2,
A pair of undercovers on the right side are provided,
The structure of the car's lower body with a bracket in between
To form an opening in the center of the bracket and
Connect the rear covers to each other at the rear of the bracket and
Extend the front part of the opening to the lower surface of the front cross member
Fixed, and a jack assembly that protrudes downward from the front part.
Since the engine mount member is provided,
Easy clearance between undercovers, even in cars without
Can be closed to. Also, install the jack on the bracket.
The front cross member
There is no need to provide a jack-up point section on. Yo
If the car has an engine mount member,
If the car does not have a
Common use is possible.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional conceptual view showing an embodiment of a lower body structure of an automobile according to the present invention.

FIG. 2 is a perspective view showing an under cover and a bracket of FIG.

3 is a perspective view showing the bracket of FIG. 1. FIG.

4 is a front view showing the bracket of FIG. 1. FIG.

FIG. 5 is a side view of FIG.

6 is an exploded view of the bracket of FIG.

FIG. 7 is a conceptual diagram showing the operation of the present invention.

FIG. 8 is a perspective view conceptually showing the operation of the present invention.

FIG. 9 is a conceptual diagram showing a jack-up method in the case of a vehicle having a conventional engine mount member.

FIG. 10 is a conceptual cross-sectional view showing a lower vehicle body structure of a front portion of a vehicle having a conventional engine mount member.

FIG. 11 is a conceptual diagram showing a conventional jack-up method for a vehicle without an engine mount member.

FIG. 12 is a conceptual cross-sectional view showing a lower vehicle body structure of a front portion of a vehicle without a conventional engine mount member.

[Explanation of symbols]

1 car body 2 Front cross member 3 apron side members 4 Undercover 5 Jack-up points 6 bracket 7 openings 8 plates 9 Undercover part 10 Flange part 11 screw holes 12 screw holes 13 nuts 14 screws 15 nuts 16 screws 17 beads 18 beads

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-59-18068 (JP, A) JP-A-5-338798 (JP, A) Actual opening Sho-63-148584 (JP, U) Actual opening Sho-64- 6122 (JP, U) Actually open 4-80778 (JP, U) Actually open 2-57782 (JP, U) Actually open 62-163476 (JP, U) Actually open 63-25684 (JP, U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) B62D 25/20

Claims (2)

(57) [Claims] 1. A pair of left and right undercovers are provided on the rear side of the front cross member , and between the undercovers.
In the lower body structure of the car where the bracket is arranged ,
Between the undercover mutually connected at the rear of the bracket, the front portion of the bracket is fixed by extending the lower surface of the front cross member, to protrude said front downward
A lower car body structure of an automobile, characterized by having a jack-up point part. 2. The left and right ones on the rear side of the front cross member
Providing a pair of undercovers, between the undercovers
In the lower body structure of the car where the bracket is arranged,
Form an opening in the center of the bracket and
Connect the covers to each other at the rear part of the bracket and
Extend the front of the mouth to the underside of the front cross member
A jack-up port that is fixed and projects downward from the front.
Lower body structure of automobile characterized by having an inlet part
Structure.