JPH078372Y2 - Foam sealer protection structure during automobile pillar assembly - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a protective structure for a foam sealer when assembling a pillar of an automobile.

[Prior Art] Conventionally, as shown in FIG. 4 to FIG. 6, a wind noise generated near a ventilation opening 2 provided on a side surface of a vehicle body 1 when a vehicle travels is generated in the rear pillar 3. In order to prevent transmission through the welding opening 4 on the passenger compartment side of the pillar 3 into the passenger compartment through the inner panel 5 and the outer panel 6, a portion located above the ventilation port 2 in the pillar 3 is formed. It is filled with sound insulation material.

A butyl-based foam sealer 7 and a urethane-based foam (not shown) are used as the sound insulating member, and a sheet-like portion is formed at a portion facing the outer panel 6 of the reinforcement 8 fixed to the inner panel 5 when the vehicle body is assembled. After setting the foam sealer 7, the outer panel 6 is fixed to the inner panel 5.

When the assembly of the vehicle body 1 is completed and the vehicle body 1 is heated during baking coating, the sheet-shaped foam sealer 7 expands to 2 to 8 times its original volume and is formed between the outer panel 6 and the reinforcement 8. Fill the space that will be filled.

The space formed between the inner panel 5 and the reinforcement 8 is filled with the foamed material through the welding opening 4.

[Problems to be Solved by the Invention] However, if the foam sealer 7 and the reinforcement 8 are set over the entire surface of the reinforcement 8 so as to face the outer panel 6, the foam sealer 7 is cut by the point 9 of the outer panel 6 when the pillar 3 is assembled. Since the foam sealer 7 must be set short so as not to interfere with the point 9, the space formed between the outer panel 6 and the reinforcement 8 cannot be sufficiently filled even if the foam sealer 7 expands. However, there is a problem in that it is impossible to completely prevent the wind noise from being transmitted to the inside of the vehicle due to the gap 10.

The present invention solves the above-mentioned problems, and an object of the present invention is to prevent the foam sealer from being cut during the pillar assembly even when the foam sealer is set over the entire surface of the reinforcement panel facing the outer panel.

[Means for Solving the Problems] Of the present invention, the first invention is a pillar formed of an inner panel and an outer panel, in which a foam sealer is set at a portion facing the outer panel of a reinforcement fixed to the inner panel. In addition, a thin film is attached to a portion of the foam sealer that interferes with the outer panel before the pillar is assembled, and the inner panel and the outer panel are fixed to each other.

In the second aspect of the present invention, in a pillar formed of an inner panel and an outer panel, a foam sealer is set at a portion of the reinforcement fixed to the inner panel facing the outer panel, and the foam sealer is set before the pillar is assembled. It has a structure in which a thin film having heat solubility is attached to a portion that interferes with the outer panel.

[Operation] In the first invention, by attaching a thin film to a portion of the foam sealer that interferes with the outer panel before the pillar is assembled, the foam sealer is prevented from being cut by smoothly sliding the interfered portion during pillar assembly. To do.

Therefore, when the temperature of the pillar is raised after the pillar is assembled, the foam sealer is filled without creating a gap in the space formed between the outer panel and the reinforcement, and the wind noise can be prevented from being transmitted to the passenger compartment. it can.

According to the second invention, by attaching a thin film having heat solubility to a portion of the foam sealer that interferes with the outer panel before the pillar is assembled, the foam sealer is prevented from being cut by smoothly sliding the interfered portion during pillar assembly. To do.

Therefore, if the temperature of the pillars is raised after the pillars are assembled, the thin film melts and the foam sealer is easily filled without creating a gap in the space formed between the outer panel and the reinforcement, and the wind noise is transmitted to the passenger compartment. Can be prevented.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

In addition, in FIGS. 1 to 3, portions denoted by the same reference numerals as in FIGS. 4 to 6 represent the same things.

1 and 2 show an embodiment of the first invention of the present invention, in which the reinforcement 8 is installed before the pillar 3 is assembled.
The butyl-based foam sealer 7 formed in a sheet shape is set on the entire surface of the outer panel 6 at a position facing the outer panel 6, and the point 9 of the outer panel 6 of the foam sealer 7 is set.
Affix aluminum foil 11 to the part that interferes with.

In the present embodiment, the aluminum foil 11 is attached to the foam sealer 7 in advance, but it may be attached after the foam sealer 7 is set in the reinforcement 8.

According to the above configuration, after the sheet-shaped foam sealer 7 is set on the reinforcement 8, when the outer panel 6 is fixed to the inner panel 5, the point 9 of the outer panel 6 is fixed.
Since the point 9 smoothly slides on the surface of the aluminum foil 11 even if it interferes with the foam sealer 7, the foam sealer 7 is not cut.

Therefore, if the temperature of the vehicle body is raised during baking coating after the vehicle body is assembled, the foam sealer 7 expands and fills the space formed between the outer panel 6 and the reinforcement 8 evenly, so that the wind in the vehicle interior is reduced. No cutting noise is transmitted.

FIG. 3 shows an embodiment of the second invention of the present invention. Before the pillar 3 is assembled, the aluminum foil 11 shown in FIG.
Instead, the polyethylene film 12 is attached to the foam sealer 7 at a portion that interferes with the point 9 on the outer panel 6.

The polyethylene film 12 may be attached to the foam sealer 7 in advance, or the foam sealer 7 may be reinforced.
You may attach it after setting to.

According to the above configuration, after the sheet-shaped foam sealer 7 is set on the reinforcement 8, when the outer panel 6 is fixed to the inner panel 5, the point 9 of the outer panel 6 is fixed.
Even if it interferes with the foam sealer 7, the point 9 smoothly slips the surface of the polyethylene film 12, so that the foam sealer 7 is not cut.

Therefore, when the temperature of the vehicle body is raised during baking coating after the vehicle body is assembled, the polyethylene film 12 melts and the foam sealer 7
Easily expands and evenly fills the space formed between the outer panel 6 and the reinforcement 8, so that no wind noise is transmitted to the vehicle interior.

The protective structure of the foam sealer at the time of assembling the pillar of the automobile of the present invention is not limited to the above-mentioned embodiment, but the front pillar 13 and the intermediate pillar 14 shown in FIG.
Needless to say, various changes can be made without departing from the scope of the present invention, such as being applicable to the above.

[Effects of the Invention] As described above, according to the foam sealer protection structure at the time of assembling the pillar of the vehicle of the present invention, the foam sealer is not cut at the time of assembling the pillar, so that the outer panel and the reinforcement are connected. The space formed between them can be evenly filled, and the excellent effect that the wind noise is not transmitted to the vehicle interior can be achieved.

[Brief description of drawings]

FIG. 1 is a sectional view showing an assembled structure of an embodiment of the first invention of the present invention, FIG. 2 is a perspective view showing a state where aluminum foil is attached to a foam sealer, and FIG. 3 is a view of the present invention. home,
FIG. 4 is a sectional view showing an assembly structure of an embodiment of the second invention, FIG. 4 is a perspective view of a vehicle body of an automobile, FIG. 5 is a sectional view showing an assembly structure of pillars, and FIG. FIG. 6 is a cross-sectional view showing filling of a foam sealer in a VI cutting portion. In the figure, 3 is a rear pillar, 5 is an inner panel, 6 is an outer panel, 7 is a foam sealer, 8 is a reinforcement, 9 is a point, 11 is an aluminum foil, and 12 is a polyethylene film.

Claims (2)

[Scope of utility model registration request] 1. In a pillar formed of an inner panel and an outer panel, a foam sealer is set at a portion facing the outer panel of a reinforcement fixed to the inner panel, and the pillar sealer interferes with the outer panel of the foam sealer before the pillar is assembled. A protective structure for a foam sealer at the time of assembling a pillar of an automobile, characterized in that a thin film is attached to a portion and the inner panel and the outer panel are fixed to each other. 2. A protective structure for a foam sealer at the time of assembling a pillar of an automobile, wherein the thin film according to claim 1 is attached to a portion of the foam sealer that interferes with the outer panel before the pillar is assembled.