JPH1159164A - Molded ceiling of automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a molded ceiling capable of efficiently preventing dirt of a molded ceiling by contriving the location and size of a ventilating opening and keeping a car compartment ceiling external appearance for a long period. SOLUTION: In a molded ceiling 2 of an automobile which is mounted on a roof panel 1 of a car body by keeping space 12, has an opening 22 for ventilation and is capable of exhausting air from a car compartment to the side of space 12 through the opening 22, the opening 22 is located at the rear side of the molded ceiling 2 and is provided so as to be longer in a car width direction and a filter member 23 with a fringing flange part 24 is mounted on the opening 22 so that the member 23 may be replaceable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molded ceiling used as a ceiling lining for a motor vehicle, and more particularly to an improvement in the molded ceiling as well as its mounting strength to prevent dirt.

[0002]

2. Description of the Related Art FIG. 5 is an external view of a general automobile roof viewed from the outside, FIG. 7 is a plan view of the roof viewed from the vehicle interior side, and FIG. 8 is a line CC in FIG. It is a vertical side view along. In FIGS. 5 to 8, a molded ceiling 2 for lining is attached to this automobile while keeping a predetermined gap (space 12) from the roof panel 1 side. The molded ceiling 2 is formed by pressure molding into a predetermined shape in a ceiling size using a molding base such as a resin board material or a corrugated cardboard material, and a skin material is adhered to a surface on the indoor side. The molded ceiling 2 may be provided with a plurality of holes penetrating the front and back surfaces of the molded base material in order to reduce the weight and breathability.

[0003] Further, when assembling to the vehicle body side, the mounting hole of the molded ceiling 2 is aligned with the mounting hole of the inner panel 3 of the roof side rail 4, and from this state, a sun visor or the like provided around the molded ceiling is provided. Are fixed by fixing members (bolts, clips, etc.) of the interior parts. A side end of the molded ceiling 2 is concealed by a garnish 10 mounted on the roof side rail 4 side. Reference numeral 5 denotes an outer panel of the roof side rail 4. Reference numeral 6 denotes a front pillar, reference numeral 7 denotes a center pillar, and reference numeral 8 denotes a rear pillar. The upper ends of these are superimposed on corresponding portions of the molded ceiling 2.

[0004] In such a roof structure, a space 12 is provided between the roof panel 1 and the molded ceiling 2. During travel of the vehicle, air enters the space 12 through a gap between the front pillar 6 and the garnish 10 as shown in FIG. 6, for example, and is guided to the rear of the vehicle body and exhausted through the rear pillar 8 and the like. You. That is,
During traveling of the vehicle, a pressure difference occurs between the space 12 and the vehicle interior. This pressure difference depends on the body design,
It may be about mAg. Therefore, the air in the passenger compartment flows to the space 12 side from, for example, a slight gap formed between the panel side and the molded ceiling 2, a gap between the mounting portions such as a room lamp and a sun visor attached to the molded ceiling 2, and the like. Inhaled. In the structure in which the through hole is provided in the molded ceiling 2, the air in the vehicle compartment is sucked into the space 12 using the vicinity of the hole as a filter.

[0005]

The conventional roof structure using the above-mentioned molded ceiling has the following problems. First
Meanwhile, air enters the space 12 through a slight gap such as a mounting portion of the molded ceiling 2 from the vehicle interior due to a pressure difference during traveling. This means that the vicinity of the gap acts as a filter, and when used for a long time, the vicinity of the gap is more contaminated with air than the general part and becomes more contaminated with the adhering matter. It becomes a factor that deteriorates the appearance. Such deposits are not limited to the vicinity of the above-described gap, but are also likely to occur in a portion of the molded ceiling 2 which is deep drawn and has a large step (a portion indicated by reference numeral 50 in FIG. 7). In this case, if the step 50 is large, there is a difference in air flow between the flat portion and the flat portion. Second
As a conventional countermeasure example, as an example, the mounting portion of the molded ceiling 2 is sealed with an adhesive or the like, or a non-breathable film is adhered to the entire molded ceiling surface, so that air flows from the vehicle interior to the space 12 as much as possible. Sometimes they don't. in this case,
Not only does the cost increase, but also the purpose of positively providing a plurality of holes through the molding base material as described above is not utilized. Third, in the conventional example, Japanese Utility Model Application No. 63-2
As described in Japanese Patent No. 2209, there is also proposed a structure in which a ventilation port is provided at a substantially central portion of a molded ceiling, and the air in the vehicle compartment is led to a space above the ceiling through the ventilation port. The inventor has
In the case where a vent was provided in the center of the molded ceiling in such a manner, it was examined through an actual vehicle test. It was confirmed that the first problem occurred and was not satisfactory.

Accordingly, an object of the present invention is to solve all of the above problems, and to effectively prevent contamination of a molded ceiling due to a pressure difference during traveling by devising a position and a size of a ventilation port. In addition to the above, it is another object of the present invention to structurally maintain the exterior of the vehicle cabin by adding a filter member. Another object is to use a filter member to reinforce the mounting strength of the molded ceiling. Yet another purpose is
It will be clarified sequentially in the contents described below.

[0007]

In order to achieve the above object, the present invention is, as illustrated in FIGS. 1 to 4, attached to a roof panel 1 of a vehicle body while keeping a space 12 therebetween, and is provided with a ventilation opening 22. , And the molded ceiling 2 of the vehicle that allows exhaust from the vehicle interior to the space 12 side through the opening 22
In this embodiment, the opening 22 is provided on the rear side of the molded ceiling 2 so as to be long in the vehicle width direction, and a filter member 23 having a rim flange 24 is attached to the opening 22 in a replaceable manner. The above structure is preferably embodied as follows. First, the filter member 23 includes a frame-like frame portion 24A that covers the periphery of the opening 22 on the cabin side at the rimming flange portion 24, and an engagement piece portion 27 protruding from the back surface of the frame portion 24A. And the engagement piece 2
Reference numeral 7 denotes a structure which penetrates the opening 22 and is engaged with and disengaged from the locking portion 30 provided on the roof panel side. Second, the opening 2
Reference numeral 2 denotes a structure having a substantially rectangular shape whose length in the vehicle width direction is equal to or more than の of the lateral width of the ceiling and whose length in the vehicle longitudinal direction is equal to or more than 5 cm.

According to this structure, since the ventilation opening 22 is located on the rear side of the molded ceiling 2 and is long in the vehicle width direction, the pressure difference between the cabin and the space 12 is reduced.
In addition to being mitigated by the presence of the airbag 2, the flow of air in the passenger compartment is efficiently sucked into the space 12 through the opening 22 behind the molded ceiling. In that case, air is drawn out from the vehicle interior toward the space 12 through the filter member 23. Since the filter member 23 is replaceably attached to the opening 22, if it becomes dirty, it can be replaced as needed. Although the periphery of the opening 22 is particularly liable to be soiled, the filter member 23 has a rimmed flange 24a, and the rim 22a is formed by the rimmed flange 24a.
Can be dealt with by replacing the filter member 23 itself. Also, the filter member 23
Is filtered by various filtering bodies 26 held by a frame 24.
What is necessary is just to be able to attach and remove air dirt. In this case, an engaging piece 27 is provided on the frame 24, and the engaging piece 27 is detachably engaged with the locking portion 30 on the roof panel side to be replaceable. Then, the latching force by the engagement piece 27 also serves as fixing between the roof panel side and the molded ceiling 2, and the fixing strength of the molded ceiling 2 itself can be reinforced.

[0009]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Note that the embodiments described below are preferred specific examples of the present invention, and thus are technically variously limited. However, the scope of the present invention is not limited to these embodiments.

FIGS. 1 to 4 show a molded ceiling of an automobile according to the present invention and a state in which the ceiling is installed. FIG. 1 is an enlarged vertical sectional side view taken along line AA of FIG. 2, and FIG. FIG. 3 is a schematic perspective view showing a relationship between a ventilation opening of a molded ceiling and a filter member, and FIG. 4 is an enlarged view of a main part of the filter member. The molded ceiling of this embodiment has, in comparison with the conventional molded ceiling shown in FIG. 5 to FIG. The difference is that a possible filter member 23 is additionally provided. Other structures, for example, the material configuration of the molded ceiling 2 itself and the basic mounting structure on the vehicle body side are the same as those of the conventional structure shown in FIGS. Therefore, in the following description, the same reference numerals are given to members corresponding to FIGS.

The ventilation opening 22 is provided in the rear part of the molded ceiling 2 (on the rear side of the interior of the vehicle) in a substantially rectangular shape elongated left and right. Here, the size of the opening 22 is slightly different depending on the size of the molded ceiling itself, but is designed as follows. The length of the opening 22 in the vehicle width direction is
It is 1/2 or more of the left and right width of the ceiling, more preferably 2 /
It is about three dimensions. The length of the opening 22 in the front-rear direction of the vehicle body is 5 cm or more, more preferably 5 to 15 cm.
Range. Generally, it can be said that these numerical values are better for ventilation because the opening 22 is larger because of the ventilation function. However, the rigidity of the molded ceiling as a whole is impaired without disturbing the air flow generated in each part when the vehicle is running. In consideration of the points, etc., the size of the opening 22 was actually changed, and the actual efficiency of the ventilation efficiency and the degree of dirt were tested on an actual vehicle. I have.

The filter member 23 comprises an elongated frame-like frame 24 and a mesh-like filter 26 integrally mounted so as to close the opening 25 of the frame 24. The frame 24 is a resin molded body, and the molded ceiling 2
The length corresponding to the opening 22 of the molded ceiling 2
Is formed as a relatively large rim flange portion 24a that covers the inner peripheral portion of the opening 22 when it is disposed from below (inside the vehicle compartment). In other words, the frame 24 has a rim flange 24 a that covers the inner periphery of the opening 22.

A plurality of engagement pieces 27 (six in this example, as shown in FIG. 3) are provided on the back (upper) side of the frame 24 so as to extend straight upward. In addition,
The positions of these engaging pieces 27 correspond to the inner peripheral surface of the ventilation opening 22, and when the frame 24 is mounted on the molded ceiling 2, the outer surface of each engaging piece 27 is placed on the ventilation opening 2.
2 is formed so as to be inserted while being lightly abutted on the inner surface. Each engaging piece 27 has a first locking claw 28 and a second locking claw 29 integrally projecting therefrom on a surface facing outward and vertically separated from each other. These locking claws 28,
Of the 29, the first locking claw 28 engages and disengages from a mounting bracket 30 (see FIG. 1) as a locking portion fixed to the roof panel 1 side. That is, the mounting bracket 30 is provided with the engagement holes 31 corresponding to the respective engagement pieces 27. Each of the first locking claws 28 penetrates the corresponding engagement hole 31 from below to above, and is hooked on the peripheral edge 32 of the engagement hole 31 on the upper side. On the other hand, the second locking claw 29 is provided between the molded ceiling 2 and the edging flange portion 24a.
Is a claw that elastically clamps the inner peripheral portion of the opening 22.

Next, the outline of assembling the vehicle body when the above-described molded ceiling 2 is used will be outlined. In this structure, it is possible to incorporate the filter member 23 into the vehicle body from a state in which the filter member 23 is attached to the molded ceiling 2 in advance via the second locking claws 29 and the rim flange 24a. Is carried into the vehicle cabin without the filter member 23 attached. Then, similarly to the case of the conventional structure, the molded ceiling 2 is positioned so that the mounting hole of the molded ceiling 2 is aligned with the mounting hole of the inner panel 3 or the like, and a sun visor or the like provided around the molded ceiling from the positioning state. Is fixed by a fixing member (a bolt, a clip, or the like) of the interior part. After the molded ceiling 2 is attached to the vehicle body in this way, the filter member 23 is attached. In this case, the ventilation opening 22 is formed from below the molded ceiling 2.
The filter member 23 is pressed against the molded ceiling 2 by allowing the engagement pieces 27 to enter the inside. Then, when each engagement piece 27 is caused to enter a predetermined position, each first locking claw 28 is elastically inserted into the corresponding engagement hole 31 of the mounting bracket 30 and is protruded from the engagement hole 31. At the edge 32. At the same time, the second locking claw 29 protrudes to the back side of the molded ceiling 2 and the opening 2
2 sandwich the periphery. In this final stage, FIGS. 1 and 2
, The filter member 23 is attached to both the molded ceiling 2 and the mounting bracket 30 side, and
The inner peripheral portion of the opening 22 is covered with the rim flange 24a. Therefore, in this structure, since the first locking claw 28 is hooked on the mounting bracket 30 side, the function of holding the molded ceiling 2 on the roof panel 1 side can be obtained also by this hooking force.

The above-mentioned filter member 23 is replaced or removed as needed and cleaned. In this case, when the filter member 23 is strongly pulled inward (toward the passenger compartment), the respective locking states of the first locking claw 28 and the second locking claw 29 with respect to the mounting bracket 30 and the molded ceiling 2 are forced. Or, it is elastically released and can be removed from the mounting bracket 30 and the molded ceiling 2. The filter member 2
In the case of replacing 3 with a new one, for example,
After the filter body 25 is partially cut with a knife or the like, the locking of the first locking claw 28 and the second locking claw 29 is released, and the entirety can be removed.

Therefore, according to this embodiment, the ventilation opening 22 and the filter member 2 provided at the rear of the molded ceiling plate 2 are provided.
3, the air in the vehicle cabin can be efficiently led out to the space 12 between the roof panel 1 and the molded ceiling plate 2 and exhausted, and adheres to the attachment portion of the molded ceiling 2 and the vicinity of the gap in each part as in the conventional case. It is possible to prevent stains from occurring. Further, the filter member 23 is provided with a first locking claw 28 of the engagement piece 27.
As a result, the latching force on the vehicle body by the engagement piece 27 reinforces fixing between the roof panel 1 and the molded ceiling 2, and the molded ceiling 2 The mounting strength can be further improved. Further, since the filter member 23 is replaceably attached to the molded ceiling 2, replacement or cleaning can be easily performed even when the filter member 23 becomes dirty.

The present invention is not limited to the above-described embodiment, but can be variously modified within the scope described in claim 1. As an example, the filter member 23 is a filter 2
Although the form in which the filter 5 is integrally mounted on the frame 24 has been described, the filter body 25 may be removably mounted on the frame 24. In this case, the detachability of the filter member 23 itself becomes simpler, and only the filter body 25 can be replaced with a new one, and washing and the like can be performed more easily. Further, as a mounting structure of the filter member 23, for example, the second locking claw 29 in this mode is omitted,
In a state where the first locking claw 28 is hooked on the mounting bracket 30 side, the edge flange portion 24a may be simply pressed against the inner peripheral portion of the ventilation opening 22 from the indoor side.

[0018]

As described above, in the molded ceiling of the automobile according to the present invention, the ventilation opening is provided at the rear of the vehicle body of the molded ceiling and is long in the vehicle width direction. Is exchangeable so that the air pressure difference between the cabin and the space can be reduced when the vehicle is running, and the air can be efficiently discharged to the space through the filter member without disturbing the air flow in the cabin. Can be derived. As a result, the amount of exhaust air through gaps and the like in each part of the molded ceiling except for the ventilation opening is extremely reduced, and it is possible to structurally prevent dirt attached to each part of the molded ceiling as in the related art. In addition, since the filter member is exchangeably mounted, the vehicle interior ceiling can always be kept clean by replacing the filter member with a new one as needed.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view taken along the line AA of FIG.

FIG. 2 is a plan view showing a molded ceiling according to the present invention as viewed from the vehicle interior side.

FIG. 3 is an exploded perspective view showing a relationship between an opening of the molded ceiling and a filter member.

FIG. 4 is an enlarged perspective view of a portion B in FIG. 3;

FIG. 5 is a perspective view of a roof portion of a general automobile viewed from the outside.

FIG. 6 is a plan view showing a conventional roof structure of an automobile viewed from the interior side of a vehicle.

FIG. 7 is a plan view showing the roof structure as viewed from the vehicle interior side.

FIG. 8 is an enlarged schematic sectional view taken along line CC of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roof panel 2 Molded ceiling 12 Space 22 Ventilation opening 23 Filter member 24 Frame 24a Edge flange 27 Engagement piece 28 First locking claw 29 Second locking claw 30 Mounting bracket (Roof panel side locking part ) 31 Engagement hole

Claims (3)

[Claims] 1. A molded ceiling of an automobile which is attached to a roof panel of a vehicle body while maintaining a space, has a ventilation opening, and allows exhaust from a vehicle interior to the space side through the opening. A molded ceiling for an automobile, wherein the molded ceiling is provided rearward of the molded ceiling in the vehicle width direction and a filter member having a rim flange portion is replaceably attached to the opening. 2. The filter member has a frame-shaped frame portion that covers the periphery of the opening in the cabin at the edge flange portion, and an engagement piece projecting from a back surface of the frame portion. 2. The molded ceiling of an automobile according to claim 1, wherein said engaging piece is disengaged from a locking portion provided on said roof panel side through said opening. 3. The vehicle according to claim 1, wherein the opening has a substantially rectangular shape having a length in the vehicle width direction equal to or more than の of the left-right width of the ceiling and a length in the vehicle longitudinal direction of 5 cm or more. Molded ceiling.