JPS6113405Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the front structure of an automobile body, and mainly relates to an improvement of a closed cross-section member composed of a wheel apron member and a reinforcement.

A reinforcement is bonded and fixed to the wheel apron member at the front of the vehicle body, and the wheel apron member and the reinforcement form a closed cross-section member that forms both side frames of the engine room, and the outer side of the member is connected to the front. It is normal that the structure is covered by a fender (for example, the
(See Publication No. 5217).

The wheel apron is humid because a lot of sewage splashed up while the vehicle is running is attached to the wheel apron, and the joints of the closed cross-section members and the like are susceptible to rust.

The present invention utilizes a closed cross-section member composed of the wheel apron member and reinforcement as described above, and allows heated air in the engine room to flow through the closed cross-section member to dry the area around the closed cross-section member. By providing multiple circulation holes in the closed section member to prevent the occurrence of rust and to circulate the air in the engine compartment, the buckling deformation of the reinforcement in the event of a vehicle collision is smoothed, and the impact energy is reduced. It is designed to improve absorption performance.
The present invention will be explained below with reference to the accompanying drawings.

In the figure, 1 is a wheel apron, 2 is a reinforcement whose cross section is approximately U-shaped, and the reinforcement 2 is bonded and fixed to the upper outer surface of the wheel apron 1 to form a closed cross-section member 3 extending in the longitudinal direction of the vehicle body. are doing.

An upper part of a fender 4 is fixed to the upper part of the closed cross-section member 3, and a mud guard 5 is attached between the lower part of the fender 4 and the lower part of the closed cross-section member 3.

The wheel apron 1 faces into an engine room 6, and the upper surface of the engine room 6 is covered with a hood 7.

In the present invention, an inner flow hole 8 is provided in the rear part of the wheel apron 1 to communicate between the engine room 6 and the inside of the closed cross-section member 3, and an outer flow hole 8 is provided in the front part of the reinforcement 2 to communicate between the inside of the closed cross-section member 3 and the outside. A hole 9 is provided so that hot air in the engine room 6 flows through the closed section member 3 through the inner flow hole 8 and flows into the inner side of the fender 4 through the outer flow hole 9.

The inner and outer flow holes 8 and 9 are the third and fourth holes.
As shown in the figure, each hole is formed in a structure in which a large number of vertically long strip-shaped holes are provided in parallel. Also good.

With the above configuration, the hot air in the engine room 6 flows through the closed section member 3 and reaches the fender 4, which dries the area around the wheel apron 1, which is the most humid area, and prevents rust from forming at the fixed joints of each plate. At the same time, the hot air also flows through the hole 10 provided in the closed cross-section member 3 to the fender mirror portion, etc., thereby preventing the occurrence of rust on the fender mirror mounting portion.

In addition, since the hot air in the engine room 6 is guided to the fender 4, snow and the like adhering to the inside of the wheel house can be removed through the muzzle guard 5.

Furthermore, according to the present invention, since the closed section member 3 is provided with many flow holes 8 and 9, the buckling deformation of the closed section member 3 at the time of a vehicle collision occurs smoothly, and the absorption performance of collision energy is improved. This can be greatly improved and can bring about great practical effects.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of essential parts of an example of an automobile to which the present invention is applied, and FIG. 2 is a sectional view taken along the line AA in FIG. 1, showing an embodiment of the present invention. FIG. 3 is a perspective view of the closed section member in FIG. 2, and FIG. 4 is a B-
It is a sectional view of B. 1... Wheel apron, 2... Reinforcement, 3... Closed section member, 6... Engine room, 8, 9... Distribution hole.

Claims (1)

[Scope of utility model registration request] In a car body wheel apron and a reinforcement fixedly connected thereto to form a closed cross-section member extending in the front-rear direction of the car body, a vertically long strip shape is provided at the rear part of the closed cross-section member to communicate the inside of the engine room and the inside of the closed cross-section member. A large number of inner flow holes are provided in parallel in the front-rear direction, and a large number of outer flow holes in the shape of a vertical strip are provided in parallel in the front-rear direction in the front part of the closed cross-section member to communicate the inside and outside of the closed cross-section member. The front body structure of a car.