JPH081128Y2 - Vehicle ventilation structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a ventilation structure for a vehicle provided in an automobile or the like.

(Prior Art) In a passenger automobile or the like, an air duct that communicates the inside and outside of the vehicle is provided in order to ventilate the inside of the vehicle. For example, as shown in FIG. Air ducts 2, 3, and 4 were provided in the lower part, center pillar, and quarter pillar. In addition, as an example in which the air duct 2 is provided in the lower portion on the rear side of the vehicle body, the actual open sho 58-108907
There is one disclosed in the publication.

(Problems to be solved by the invention) However, in the structure in which the air ducts 2, 3, and 4 are installed in the lower rear part of the vehicle body, the center pillar part, and the quarter pillar part, it is not possible to secure a sufficient installation area for each, and therefore, it is not enough. It was difficult to secure sufficient ventilation, and ventilation performance could not be fully exhibited. Further, even when the door is closed, it is difficult to smoothly discharge the air in the vehicle compartment, and a smooth door tightening effect cannot be obtained. Further, when the air ducts 3 and 4 are installed in the center pillar portion and the quarter pillar portion, there is a drawback that the appearance is deteriorated.

In view of the above problems, an object of the present invention is to provide a ventilation structure for a vehicle that secures a sufficient ventilation amount, improves ventilation performance and door tightening effect, and has a good appearance.

(Means for Solving the Problem) A technical means for achieving the above-mentioned object is to provide a recess for a spare tire storage chamber communicating with the vehicle interior on the floor of the rear part of the vehicle and to cover the spare tire storage chamber. In a vehicle ventilation structure in which a deck board is placed on the floor, the rear duct of the spare tire storage chamber has an air duct that connects the interior and exterior of the spare tire to the side of the spare tire storage chamber. And the rear edge of the deck board is supported on the protruding portion of the air duct on the spare tire storage chamber side.

(Operation) According to the present invention, an air duct is provided on the rear wall of the spare tire storage chamber, and a large installation area can be secured, so that a large amount of ventilation can be secured.

Further, since the air duct is provided in the spare tire storage chamber provided on the floor of the rear part of the vehicle, the air duct is hard to see from the outside of the vehicle and has a good appearance.

Further, the protruding portion on the spare tire storage chamber side of the air duct can also serve as the receiving portion of the deck board that covers the upper portion of the spare tire storage chamber.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.
In FIGS. 1 to 4, a floor portion 10 at the rear of the vehicle is mainly composed of a rear floor pan 11, and a spare tire 12 is laterally housed in the middle portion of the rear floor pan 11 in the left-right direction and on the rear side. The spare tire storage chamber 13 is recessed.

A lower back panel 14 is fixed to the rising portion 11a at the rear edge of the rear floor pan 11 by spot welding or the like,
The rear wall portion 15 of the spare tire storage chamber 13 is a lower back panel 14
It is composed of

A rectangular opening 16 having a long side in the left-right direction is formed in the rear wall portion 15, and an air duct 17 is attached to the opening 16 so as to fit inside and outside.

The air duct 17 is a duct body 18 that is fitted into the opening 16.
And a mounting flange portion 19 formed in a protruding shape on one side of the duct body 18, and the duct body 18 has a rectangular ventilation opening 20.
Are formed in the left-right direction. A rectangular check valve 21 made of a rubber plate or the like is mounted on the other side of the duct body 18 so as to open and close each ventilation opening 20 from the outside of the vehicle compartment. Each check valve 21 has an upper edge portion fixed to the duct body 18 side by fastening a screw 22 or the like, and a lower edge portion side can be opened by elastic deformation. A plurality of mounting holes 23 are formed in the mounting flange portion 19 at appropriate intervals in the circumferential direction.

Then, as shown in FIG. 2, the duct body 18 is fitted from the storage chamber 13 side, and the mounting flange portion 19 allows the mounting flange portion 19 to be attached to and detached from the rear wall portion 15 by a fixing tool (not shown) using the mounting hole 23. It is fixed. Storage room at the top of the mounting flange 19
A pair of receiving portions 24 as protruding portions projecting inward are formed apart from each other in the left-right direction, and each receiving portion 24 has a storage chamber.
13 An insertion hole 27 is formed to cover the upper part and to insert a positioning pin 26 projecting on the lower surface of the rear end portion of a deck board 25 placed on the rear floor pan 11. When the air duct 17 is attached to the rear wall portion 15, each receiving portion 24
The upper surface of the rear floor pan 11 is configured to have substantially the same height as the upper surface of the rear floor pan 11. Further, the rear floor pan 11 is made of a corrugated sheet material or the like, and the passenger compartment and the storage compartment 13 are in communication even when the deck board 25 is mounted. Further deck board 25
May be made of a material having air permeability.

On the rear surface side of the lower back panel 15, a horizontal cross member 29 covering the air duct 17 with a gap above and below and behind the air duct 17 is fixed by spot welding or the like. The cross member 29 is composed of an upper wall portion 29a, a bottom wall portion 29b, and a back wall portion 29c. As shown in FIG. 3, the cross member 29 is provided at both left and right end portions of the back wall portion 29c which is separated from the air duct 17 corresponding position in the left and right direction. An opening 30 for spot welding work is formed.

Here, the vehicle interior and the vehicle exterior are in communication with each other through the storage chamber 13, the air duct 17, the passage inside the cross member 29 and the opening 30.

 32 is a rear bumper and 33 is a back door.

The embodiment of the present invention is configured as described above, and since the air duct 17 is provided using the rear wall portion 15 of the storage chamber 13, a large installation area can be secured, and thus a large ventilation opening area can be secured. A large amount of ventilation can be secured. Therefore, the ventilation and the door closing operation are not hindered, and the ventilation performance and the door tightening effect can be improved.

Further, the receiving portion 24 provided in the air duct 17 can be used also for receiving and positioning the rear edge portion of the deck board 25, the number of parts can be reduced, and the cost and the weight can be reduced.

Further, the check valve 21 can prevent the intrusion of dust, water, and the like from the outside, and the cross member 29 does not have a straight communication path with the outside, which also prevents the intrusion of dust, water, and the like. .

In addition, an air duct 17 is provided on the rear side of the storage chamber 13 located below the deck board 25, and a bumper is provided from the outside.
The position covered with 32 is hard to see from the outside of the vehicle, and even when the back door 33 is opened, the air duct 17 cannot be seen, and the appearance is good.

(Effect of the Invention) As described above, according to the vehicle ventilation structure of the present invention, since the rear duct of the spare tire storage chamber is provided with the air duct as a protrusion toward the spare tire storage chamber, a large installation is possible. The area can be secured, and therefore a large amount of ventilation can be secured, and ventilation performance and door tightening effect can be improved. In addition, the air duct is difficult to see from the outside of the vehicle, and it looks good. further,
There is an advantage that the protruding portion on the spare tire storage chamber side of the air duct can also be used as the receiving portion of the deck board.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part showing an embodiment of the present invention, FIG. 2 is a side view of the same section, FIG. 3 is a view taken along the line III-III of FIG. 2, and FIG. 4 is an exploded perspective view of an air duct. FIG. 5 is a side view of a vehicle showing a conventional example. 10 …… Floor, 13 …… Spare tire storage room, 15 …… Rear wall, 17 …… Air duct

Claims (1)

[Scope of utility model registration request] 1. A ventilation structure for a vehicle in which a spare tire storage chamber communicating with the vehicle interior is provided in the floor of the rear of the vehicle, and a deck board is placed on the floor covering the spare tire storage chamber. In the rear tire part of the spare tire storage chamber, an air duct for communicating between the vehicle interior and the exterior of the vehicle is provided as a protrusion on the spare tire storage chamber side, and the air duct is located above the spare tire storage chamber side protrusion. A ventilation structure for a vehicle, wherein a rear edge portion of the deck board is supported by the.