JPS6039588B2 - Automobile front body structure - Google Patents

Description

[Detailed description of the invention] The present invention relates to improvements in the front structure of an automobile body.

Conventionally, as shown in FIG. 1, in the front structure of an automobile, an engine compartment 3 housing a radiator, an engine 2, etc., and a vehicle interior 5 facing a steering wheel 4 are separated by a dash panel 6. The lower part of the front window 7 is supported by the rear end 8a of the cowl panel 8 and the rear end 9a of the dash panel upper 9, and the front end 80 of the cowl panel 8 and the front end g of the dash panel upper 9 are supported.
b and dash panel lower "10 front end 10b and spot welded in three layers to form a space 11 with a closed cross section and a slit 12 for a ventilator on the upper surface of the cowl panel 8 has been put into practical use. There is.

In the conventional vehicle body front structure described above, the cowl panel 8 is bent into an inverted L shape to form a space 11 with a closed cross section, so the needle idle of the engine 2 can be adjusted by opening the front hinged bonnet 13. When adjusting the screws 14, the inverted L-shaped portion of the cowl panel 18 that stands up almost vertically gets in the way, making the adjustment difficult. In addition, it is difficult to assemble and adjust the mower, link, etc. for the wiper, and furthermore, it is difficult to remove dead leaves, dust, etc. that have entered the space 11 from the slit 12. There were various problems such as difficulty in

The present invention has been made in view of the above-mentioned problems, and therefore,
The front end of the cowl panel is positioned further back than the front end of the dash panel upper to eliminate the vertical rise of the cowl panel, making it easier to adjust the engine needle, etc. This creates an open cross section with the front opening □ to absorb impact force, while a grille box with ventilator slits formed on the top and rear surfaces is attached to the rear end of the bonnet to prevent the bonnet from closing. Only when the bonnet is open, the lower side of the grille box is brought into watertight contact with the upper surface of the dash panel upper to form a closed cross section at the rear of the grille box. This is to ensure reliability, facilitate thinning of wiper motors, etc., and facilitate removal of dead hollyhock, etc. Embodiments of the invention will now be described in detail with reference to the accompanying drawings.

As shown in FIGS. 2 and 3, on the vehicle body side, the lower part of the front window 17, the rear end 18a of the cowl panel 18, and the rear end 19a of the dash panel upper 19 are bonded with adhesive 20. while supporting the front end 19b of the dash panel upper 19 and the dash panel lower 2.
The rising edge of the front end 22b of 2 is overlapped and spot welded,
At the same time, the seal member 23 is attached by iron, and the front end 18b of the cowl panel 18 is attached to the front end 1 of the dash panel upper 19.
The sealing material 25 forming the rain rail 24 is iron-bonded to the rear of the rain rail 9b.

As a result, the cowl panel 18 and the dash panel upper 19 form an open cross section with an open front surface.

Note that 21 is a wind mall. On the other hand, the rear end 26b of the front-hinged bonnet 26 is provided with a gate 34 that is long in the vehicle width direction, and the opening 34 has slits 27, . ...,
The upper plate part 28 formed with 27 is inserted into the bonnet 26 through the closing opening 34, and has slits 29, . . . on the rear surface 30a.
..., 29, and a synthetic resin grill box 31 made of synthetic resin is inlaid with iron, and the surrounding collar 32 of the grill box 31 is opened, and the screws 33,... ..., fixed at 33.

When the bonnet 26 is closed, the rear end 26b is in watertight contact with the sealing material 25 of the cowl panel 18, and the bottom 30b of the grill box 31 is in contact with the dash panel upper 1.
9 and the dash panel lower 22, and close the open section formed by the cowl panel 18 and the dash panel upper 19 with the rear surface 30a of the grill box 31 to form a closed section. A space 35 is formed. Note that the dash panel upper 19 and the dash panel lower 22 do not necessarily need to be separate bodies, and may be constructed as a single dash panel.

With the above configuration, when the bonnet 26 is closed, a watertight closed-section space 35 is formed between the cowl panel 18, the dash panel upper 19, and the rear surface 30a of the grill box 31. From the slit 27 of the upper plate part 28 of the grill box 31 to the rear surface 30
It is introduced into the space 35 through the slit 29 of a, and is supplied from the space 35 to the ventilator device.

In addition, since the Sekiguchi side of the space 35 with a wide cross section is the rear surface 30a of the synthetic resin grill box 31, the strength is almost the same as that of an open cross section. It absorbs the impact force and prevents it from being applied directly to the driver.Next, when the bonnet 26 is opened, the cowl panel 18 and the dash panel upper 19 form an open section, and the front end 18 of the cowl panel 18
Since the point b is set back greatly to the rear, adjustment operations of the adjusting screw 14 such as adjusting the needle of the engine 2 can be easily performed from an oblique direction.

In addition, cowl panel 18 and dash panel upper 19
Since the open cross section is formed, the inner surface can be reliably misted during manufacturing, and rough fitting and adjustment of the wiper motor etc. can be easily performed during assembly, and when the bonnet 26 is closed, Even if debris etc. enters the closed section space 35 from the IJ ports 27, 29 of the grill box 31, they can be easily removed by opening the bonnet 26. As is clear from the above description, the present invention positions the front end of the cowl panel behind the front end of the dash panel upper to form an open cross section,
When the bonnet is closed, a closed cross section can be formed in combination with the front side of the grill box in which the ventilator slit is formed.

Therefore, when the bonnet is opened, it becomes easy to adjust the engine needle from the front end of the receded cowl panel, and it is also easy to remove debris that has entered the space of the open section. become.

Further, since the cowl panel darts panel upper has an open cross section, the inner surface can be reliably coated during manufacture, and the wiper motor and the like can be easily attached.

Furthermore, when the bonnet is closed, a watertight open section is formed, so rainwater and the like will not enter the engine compartment from the outside.

In addition to efficiently taking in air for the pentilator, this closed cross section can be considered the same as the open cross section between the cowl panel and the upper dash panel in terms of strength, so it can absorb the impact force in the event of a collision and help the driver. Safety can be ensured.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of a conventional front part of a vehicle body, FIG. 2 is a side sectional view of a front part of a vehicle body according to the present invention, and FIG. 3 is a perspective view of the front part of a vehicle body. 17...Front window, 18...Power panel, 1
8b...Front end, 19...Dash panel upper, 19b...Front end, 22...
・Dash panel lower, 23, 25...Seal material, 2
7, 29...slit, 31...grill box, 35
······space. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1. The lower part of the front window is supported by a cowl panel and a dash panel upper, and the front end of the cowl panel is positioned rearward than the front end of the dash panel upper,
The cowl panel and the dash panel upper form an open cross section with an open front, while a grill box with ventilator slits formed on the top and rear surfaces is attached to the rear end of the bonnet, so that when the bonnet is closed, the grill box A front body structure for an automobile, characterized in that the lower surface of the box is brought into watertight contact with the upper surface of the dash panel upper.