JPH0621824Y2 - Vehicle assembly structure - Google Patents

Description

[Detailed description of the device] (Industrial application field) This device is a cowl top, instrument panel,
The present invention relates to a vehicle assembly structure in which a cowl assembly to which cowl components such as a steering device and pedals are attached is assembled to a vehicle body unit having a dash panel.

(Prior art and its problems) In recent years, in order to simplify the work of assembling a vehicle, parts such as an instrument panel, a steering device, pedals, a wiper unit, a heater and an air conditioner are attached to the cowl top. There has been proposed a vehicle assembly structure in which the above-described cowl assembly is formed in advance and the cowl assembly is assembled to a vehicle body unit.

FIG. 3 is a sectional view showing such a conventional vehicle assembly structure, which is disclosed in Japanese Utility Model Laid-Open No. 62-108175. As shown in the figure, the cowl assembly 1 is
A cowl top 2 having a substantially box-shaped cross section that is arranged along the vehicle width direction is provided in the front part of the vehicle compartment. The cowl top 2 is assembled with cowl components such as an instrument panel 3 and a steering device (not shown). ing. On the other hand, the vehicle body unit 4 includes a floor panel 5, a dash panel 6 welded to the front end of the floor panel 5 so as to extend upward from the front end, and the floor panel 5 and the dash panel 6 on the inside of the vehicle. And a cover panel 7 welded so as to overlap the panels 5 and 6. The cover panel 7 cooperates with the dash panel 6 to realize a double panel structure, and has a function of making it difficult for vibration in the engine room to be transmitted to the vehicle interior.

And the vehicle body unit 4 of the cowl assembly 1
The lower part of the cowl top 2 and the upper part of the dash panel 6 are connected to each other by the bolt 8 and the reinforcing plate 3a extended below the instrument panel 3 is attached to the instrument panel 3.
Is connected to the center of the dash panel 6 with a bolt 9.

However, in the conventional vehicle assembly structure, it is necessary to attach the cover panel 7 to the dash panel 6 in advance in the assembly process of the vehicle body unit 4 in order to make it difficult for vibration noise in the engine room to be transmitted to the vehicle interior. However, there has been a problem that the number of man-hours for assembling increases and the assembling work becomes complicated.

(Object of the Invention) The present invention solves the above-mentioned problems of the prior art and realizes a double panel structure that makes it difficult for vibration noise in the engine room to be transmitted to the vehicle interior, while simplifying the assembly work. It is intended to provide an assembly structure of.

(Means for Achieving the Purpose) The present invention has a cowl top having a box-shaped cross section formed by a front panel, an upper panel, and an L-shaped panel, and the cowl top includes a cowl for an instrument panel, a steering device, pedals, and the like. A structure for assembling a vehicle, in which a cowl assembly including surrounding parts is attached to a vehicle body unit having a dash panel,
A sound insulation panel that is integrally formed on the front panel of the cowl top and extends downward, and is overlapped with the dash panel over substantially the entire area of the dash panel, and the sound insulation panel and the dash panel are connected to each other to connect the cowl assembly. And a fixture including a bolt and a nut for fixing the vehicle body unit to the vehicle body unit.

(Embodiment) FIG. 1 is a sectional view showing an assembling structure of a vehicle according to an embodiment of the present invention, and FIG. As shown in both figures, this assembly structure is a vehicle assembly structure in which the cowl assembly 11 is assembled to the vehicle body unit 12.
On the cowl top 13, a steering device 14, pedals 15 such as a brake and an accelerator, and other parts around the cowl such as an instrument panel, a wiper unit, a heater, and an air conditioner (not shown) are attached.

The cowl top 13 includes a front panel 13a and an upper panel 13
b and an L-shaped panel 13c, the front panel 13
The front end of the upper panel 13b is welded to the upper end of a, the upper end of one piece of the L-shaped panel 13c is welded to the rear end of the upper panel 13b, and the front end of the other end of the L-shaped panel 13c is front panel 1.
It is welded to the lower end of 3a to have a box-shaped cross section. Further, as shown in FIG. 2, brackets 13d are attached to both side end portions of the cowl top 13 respectively corresponding to the attachment regions of the door hinge brackets 20 (only one side end is shown in the figure). Furthermore, the front panel 13a
A sound insulation panel 16 is formed at the lower end of the so as to extend downward from the panel 13a. This sound insulation panel 1
A plurality of mounting holes 16a are formed at the lower end of 6 along the lower side thereof.

Further, in the steering device 14, a steering column tube 14b having a steering handle 14c attached to the upper end is supported by the cowl top 13 via a steering bracket 14a, and a steering intermediate shaft 14d is arranged to penetrate the sound insulation panel 16. To be done. In addition, as for the pedals 15 such as the brake and the accelerator, each pedal 15b has a pedal bracket 1
The pedals 1 are supported by the cowl top 13 via 5a.
Among them, the brake pedal of 5 is connected to the brake booster 15d arranged on the front side of the sound insulation panel 16 via the connecting portion 15c.

On the other hand, the vehicle body unit 12 includes a floor panel 17 forming a vehicle interior floor and a dash panel 18 forming a vehicle interior front portion, and a lower end of the dash panel 18 bent rearward is a front end of the floor panel 17. The dash panel 18 is welded and connected to the floor panel 17 so as to extend upward. Further, the dash panel 18 is formed with a plurality of mounting holes 18a corresponding to the plurality of mounting holes 16a of the sound insulation panel 16. Although not shown, the dash panel 18 is formed with a notch extending downward from the upper end corresponding to the steering intermediate shaft 14d and the connecting portion 15c of the pedals 15. The steering intermediate shaft 14d and the connecting portion 15c do not interfere with the dash panel 18 when attached.

To mount the cowl assembly 11 to the vehicle body unit 12, the cowl assembly 11 is dropped from above the vehicle body unit 12, and the steering intermediate shaft 14d and the connecting portion 15c are fitted to the cutout portion of the dash panel 18. Each of them is inserted, and the sound insulation panel 16 is overlapped with the vehicle interior side of the dash panel 18 over almost the entire area of the dash panel 18, and the mounting hole 16a of the sound insulation panel 16 and the mounting hole 1 of the dash panel 18 are attached.
8a is aligned, and brackets 13d provided on both side ends of the cowl top 13 are arranged inside the front pillar 12a of the vehicle body unit 12. Next, the bolt 19 is attached to the plurality of mounting holes 16a, 18 from the passenger compartment side.
The lower end of the sound insulation panel 16 and the lower part of the dash panel 18 are connected to each other by fastening them to nuts 21 provided on the engine room side through a. The upper end of the dash panel 18 and the upper end of the sound insulation panel 16 are
They are connected to each other by an adhesive 22 (shown by a thick line in FIG. 1) arranged between them. In this state, since the double panel structure including the sound insulation panel 16 and the dash panel 18 is realized between the engine room and the vehicle interior, the vibration sound of the engine room is reduced from being transmitted to the vehicle interior.

On the other hand, on both sides of the cowl assembly 11, as shown in FIG. 2, the door hinge brackets 20 are provided so as to correspond to the brackets 13d of the cowl assembly 11 arranged inside the front pillar 12a of the vehicle body unit 12, respectively. Front pillar 12a
Of the cowl top 13 by arranging the bolts 23, 23 from the outer side of the vehicle through the door hinge bracket 20, the front pillar 12a and the bracket 13d respectively and fastening the bolts 23, 23 to the nuts 24, 24 provided on the inner side of the vehicle. Both side ends are fixed to the vehicle body unit 12.

According to this vehicle assembly structure, the cowl assembly 11
Since the sound insulation panel 16 is provided so as to extend downward on the cowl top 13 of the vehicle, and the sound insulation panel 16 is superposed on the dash panel 18, the cowl assembly 11 is assembled to the vehicle body unit 12. In parallel with the assembling work, a double panel structure for sound insulation can be realized between the engine room and the vehicle interior, and the work of attaching the cover panel 7 for realizing the double panel structure as in the above conventional example is separately performed. There is no need to perform it, and the assembly work can be simplified.

Further, since both sides of the cowl assembly 11 are fixed to the front pillar 12a by using the bolts 23 for fixing the door hinge bracket 20, it is not necessary to use a dedicated fixture, and the number of parts is increased. Nor.

(Effect of the Invention) As described above, according to the vehicle assembly structure of the present invention, the front panel of the cowl top is integrally formed so as to extend downward, and the dash panel is superposed over the entire area of the dash panel. Since a sound insulation panel and a fixture consisting of bolts and nuts that connect the sound insulation panel and the dash panel and fix the cowl assembly to the vehicle body unit are provided, the engine room and the interior of the vehicle compartment are parallel to the assembly work. A double panel structure for sound insulation can be realized between the cowl top assembly and the vehicle body unit, and work for fixing another member for sound insulation is not required, and the work for assembly can be simplified. The effect is obtained.

[Brief description of drawings]

FIG. 1 is a sectional view showing an assembling structure of a vehicle according to an embodiment of the present invention, FIG. 2 is a perspective view of a main part thereof, and FIG. 3 is a sectional view showing a conventional assembling structure of a vehicle. 11 ... Cowl assembly, 12 ... Vehicle body unit, 13 ... Cowl top, 13a ... Front panel, 13b ...
... Upper panel, 13c ... L-shaped panel, 14 ... Steering device, 15 ... Pedals, 16 ... Sound insulation panel, 1
8 ... Dash panel, 19 ... Bolt, 20 ... Nut

Claims (1)

[Scope of utility model registration request] 1. A cowl comprising a front panel, an upper panel, and an L-shaped panel to form a cowl top having a box-shaped cross-section, and instrument parts, a steering device, pedals, and other parts around the cowl are attached to the cowl top. A vehicle assembly structure in which an assembly is assembled to a vehicle body unit having a dash panel, the dash panel being formed by integrally extending downward to the front panel of the cowl top. A sound insulation panel that is overlapped over substantially the entire area, and a fixture including a bolt and a nut that fixes the cowl assembly to the vehicle body unit by connecting the sound insulation panel and the dash panel. Vehicle assembly structure.