JPH046965Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a drafter device that discharges the air inside the vehicle to the outside of the vehicle and muffles exhaust noise when ventilating the air inside the vehicle.

(Prior art) As a conventional drafter device, for example,
The one described in Japanese Patent No. 62-200007 is known.

In this conventional device, a drafter assembly hole is formed in the side surface of the outer panel, and the drafter is inserted into the side wall space from the side through the drafter assembly hole and installed in the vertical direction, and is attached to the outer panel. The discharge port at the lower end of the draft was covered with a bumper surface.

(Problem to be solved by the invention) However, in the above-mentioned conventional drafter device, a drafter assembly hole is formed in the side surface of the outer panel, and therefore, the drafter cannot be inserted through this drafter assembly hole. When assembling, it is necessary to insert the drafter sideways into the drafter assembly hole and then reorient the drafter vertically, resulting in poor workability.

Also, when inserting the drafter horizontally as described above, if the drafter is long, its tip will hit the inner panel, so to avoid this, the length of the drafter must be shortened. When the drafter is shortened, there is a problem in that an effective silencing effect cannot be obtained for the air passing through the drafter.

The present invention focuses on the above-mentioned conventional problems, and aims to provide a drafter device that has good drafter assembly workability and can make the length of the drafter sufficiently long. .

(Means for Solving the Problems) In order to achieve the above-mentioned object, the drafter device of the present invention has a side wall space between an outer panel forming the outer side surface and bottom of the vehicle body and an inner panel forming the inner side surface of the vehicle body. A car body side wall is formed,
A drafter device in which a bumper face covering between the outer surface of the vehicle body and the bottom of the outer panel is attached to the lower part of the side wall of the vehicle body, an exhaust passage is formed in the side wall space, and a drafter having a noise damping function is provided, At the bottom of the outer panel,
A downward-opening driver assembly hole is formed,
The drafter extends vertically within the side wall space and is attached to the side wall of the vehicle body, a bumper space is formed between the bottom of the outer panel and the bumper face, and an exhaust port is formed to exhaust vehicle interior air into the bumper space. A bumper opening that opens toward the inside of the vehicle is formed between the lower end of the side wall of the vehicle interior and the lower end of the bumper face. A cover is attached to communicate a discharge port opening downward, and the discharge port is formed along the lower part of the bumper faceia by the lower end of the bumper faceia and the lower end of the cover.

(Function) In the drafter device of the present invention, when assembling the drafter, if the drafter is inserted directly above from below the drafter assembly hole formed at the bottom of the outer panel, the drafter can be inserted into the side wall space without changing the direction of the drafter. It extends in the vertical direction and can be attached to the outer panel as is.

In addition, since the exhaust port is formed continuously on the lower surface of the bumper face, the air flowing along the lower surface of the bumper face generates a large negative pressure near this outlet, increasing the air attraction force and improving exhaust performance. will improve.

In addition, since the discharge port is formed by the lower end of the bumper face and the lower end of the cover along the lower part of the bumper face, it is not visible from the outside and does not spoil the appearance.

(Example) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

First, the configuration of the embodiment will be explained.

The drafter device A of this embodiment is provided at the rear of the automobile 1, as shown in FIG. explain.

FIG. 1 is a longitudinal cross-sectional view of the embodiment device A, and FIG. 2 is a cross-sectional view of the embodiment device A.

In the figure, reference numeral 10 denotes the rear body side wall of the automobile 1, including a rear fender panel 11 and a lower inner panel 12 as outer panels facing the exterior 2 of the vehicle.
and a trim panel 13 serving as an inner panel that partitions a trunk room 30 on the vehicle interior side, form a side wall space 14 and are joined at a lower end at a joint 16.

Further, a bumper side portion 40 of the rear bumper 4 is provided around the rear of the vehicle body side wall 10,
Bumper face 41 and rear fender panel 11
A bumper space 8 is formed between the bottom of the bumper and the bottom of the bumper. Incidentally, the trunk room 30 is communicated with a vehicle compartment (not shown).

A drafter assembly hole 15 opened downward is formed at the bottom of the rear fender panel 11, and the drafter 5 is attached to the drafter assembly hole 15.

That is, the drafter 5 is inserted into the side wall space 14 from below through the drafter assembly hole 15 and is installed in a state where it is arranged long in the vertical direction,
In this case, the mounting structure is such that the flange portion 51 provided on the outer periphery of the drafter 5 is fixed to the peripheral edge of the drafter assembly hole 15.

The drafter 5 is a trunk room (vehicle compartment) 3.
It is made of synthetic resin and has a cylindrical shape with a square cross section, and has a partition wall 53 inside which partitions the drafter internal flow path (exhaust passage) 52 into a plurality of parts. is formed in the upper end of the trunk compartment 3 through a communication port (not shown) formed in the trim panel 13.
0 is formed, and a portion below the flange portion 51 is bent into an L-shape toward the center in the vehicle width direction, and an exhaust port 55 facing toward the center in the vehicle width direction is formed. It is provided.

Note that the intake port 54 is provided with a one-way valve 56 that only allows air to be introduced from the side wall space 14 into the drafter internal flow path 52.

The lower end portion of the drafter 5 is a bumper side portion 40.
The bumper face 41 is covered with a lower part (lower surface) 42, while the center side in the vehicle width direction is covered with a cover 61.
The exhaust port 55 is covered by this cover 61.
Exhaust passage extension part 6 forming an exhaust passage continuous to
is formed. That is, the exhaust passage for exhaust gas is constituted by the drafter internal flow passage 52 and this exhaust passage extension 6.

The cover 61 is joined to the lower end of the lower inner panel 12, and connects the exhaust port 60, which is the outer side end of the exhaust passage extension 6, to the outer surface of the bumper face 41 at a position on the lower edge side of the bumper face 41. The cover 61 is formed of a metal plate such as iron or aluminum, and is provided to shield the lower end of the drafter 5 from the heat radiation of the exhaust muffler 7 of the automobile. There is.

That is, the discharge port 60 is formed by the lower end 43 of the bumper face 41 and the lower end 62 of the cover 61.

Next, the operation of the embodiment will be explained.

(a) When assembling the drafter When assembling the drafter 5,
Simply hold the drafter 5 vertically, insert the upper end of the drafter 5 into the drafter assembly hole 15 from below, and fix the flange portion 51 with the peripheral edge of the drafter assembly hole 15. It can be arranged vertically within the side wall space 14.

In this way, the direction in which the drafter 5 is inserted is the inner panel 12 or trim panel 13 on the side of the vehicle body side wall 10.
Therefore, the length of the drafter 5 is not restricted by the presence of both panels 12 and 13, and the length of the drafter 5 can be formed to a necessary length effective for noise reduction.

(b) During exhaust: Drafter 5 assembled as described above
The air in the trunk room (vehicle compartment) 30 is guided from the intake port 54 at the upper end to the drafter internal flow path 52,
This is discharged from the exhaust port 60 via the exhaust port 55 and the exhaust passage extension 6.

In this case, when the automobile 1 travels, air flows in the lower part (lower surface) 42 of the bumper face 41, so the exhaust passage extension 6 provided continuously with the lower part (lower surface) 42 of the bumper face 41 generates an air flow. In the vicinity of the exit 60, the negative pressure generated by the flow of air due to this traveling becomes large, and the attractive force is increased by the negative pressure, so that the drafter 5 can perform exhaust air effectively.

Further, as described above, since the discharge port 60 is provided at the lower edge of the bumper face 41 so as to be continuous with the lower part (lower surface) 42 of the bumper face 41 and open downward, the draft can be removed from the discharge port 60. Exhaust gas from the exhaust muffler 7 does not directly enter the inside of the bumper face 5, and even if this exhaust gas accumulates inside the bumper faceia 41, this exhaust gas will not enter.

In addition, a cover 61 forming the exhaust passage extension 6
Since heat radiation from the exhaust muffler 7 can be blocked by this, thermal deformation of the resin drafter 5 can be prevented.

Although the embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment. For example, in the drafter device of the embodiment,
Since an exhaust muffler is installed nearby, a metal plate was used for the cover that forms the exhaust passage extension for heat shielding purposes, but if an exhaust muffler is not installed nearby, the cover may be replaced with a metal plate. There is no need to form it with

(Effect of the invention) As explained above, in the drafter device of the present invention, the drafter assembly hole is formed at the bottom of the outer panel, and the drafter can be placed in a predetermined position by inserting it directly upward. Therefore, it is possible to obtain the effect that the work of assembling the drafter is simplified and the workability can be improved.

Additionally, since the presence of the inner panel on the side wall of the vehicle body does not interfere with the assembly work, the length of the drafter can be set to the required length that is effective for noise reduction, and the necessary noise reduction performance can be obtained. is obtained.

In addition, since the exhaust port is provided facing downward at the lower edge of the bumper face, it is possible to obtain high exhaust performance. In addition, this outlet is placed in a position where it cannot be seen from the outside, so it does not spoil the appearance.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing a drafter device according to an embodiment of the present invention, FIG. 2 is a cross sectional view showing the embodiment device, and FIG. 3 is a side view showing the rear part of an automobile equipped with the embodiment device. A... Drafter device, 5... Drafter, 6...
Exhaust passage extension (exhaust passage), 8...bumper space,
10... Vehicle side wall, 11... Rear fender panel (outer panel), 12... Lower inner panel (inner panel), 13... Trim panel (inner panel), 14... Side wall space, 15... Drafter assembly Hole, 30... Trunk room (vehicle compartment), 41...
... Bumper face, 42 ... Lower part (lower surface),
43...lower end, 52...drafter internal flow path (exhaust passage), 60...discharge port, 61...cover, 62...
…lower end.

Claims (1)

[Scope of Claim for Utility Model Registration] A vehicle side wall having a side wall space is formed between an outer panel forming the outer side surface and bottom of the vehicle body and an inner panel forming the inner side surface of the vehicle body, and a lower portion of the vehicle body side wall is provided with an outer panel. A drafter device is provided with a bumper surface that covers between the outer side surface and the bottom of the vehicle body, and a drafter that forms an exhaust passage in the side wall space and has a noise-reducing function. an open drafter assembly hole is formed, the drafter is attached to the side wall of the vehicle body by extending vertically into the side wall space, a bumper space is formed between the bottom of the outer panel and the bumper face, and the drafter is installed in the vehicle interior. A bumper opening that opens toward the inside of the vehicle interior is formed between a lower end of the vehicle body side wall in which an exhaust port for discharging air into the bumper space is formed and a lower end of the bumper face. A cover is attached that communicates a bumper opening near the exhaust port with an exhaust port opening toward the bottom of the vehicle body, and the exhaust port is formed by the lower end of the bumper face and the lower end of the cover along the lower part of the bumper face. Drafter device.