JP6936625B2 - Vehicle door structure - Google Patents

Description

The present invention relates to a vehicle door structure comprising a double sealing structure that seals between the door and the body.

Conventionally, as shown in FIGS. 4 and 5, in the hinge portion of the automobile door 1, a structure in which the door 1 and the body 2 are doubly sealed by the first seal portion 10 and the second seal portion 20 is known. There is.
In such a vehicle door structure provided with a double seal structure, when the door 1 is closed, the two seal members 10 and 20 seal the door 1 and the vehicle body 2 in a double ring shape. An annular space M is formed between the seal members 10 and 20.

This space M is sealed at the moment when the door 1 is closed, so that the air inside the space M is compressed and the air pressure rises to exert a reaction force on the door 1, so that there is a problem that the closing property of the door 1 deteriorates. It is happening.

On the other hand, a vent is opened in the door trim attached to the inside of the car of the door inner panel to let the air trapped in the annular space escape from the vent to prevent the deterioration of the door closing property. (See Patent Document 1).

Further, by providing a shielding member in the annular space formed by providing the double seal structure on the upper side of the hinge portion of the automobile, that is, on the upper side of the belt line, the hinge portion on the lower side of the belt line is provided. Disclosed is a device that cuts off communication with the annular space formed in the vehicle, prevents the noise generated outside the vehicle from being transmitted from the lower side to the upper side of the belt line, and reduces the noise level inside the vehicle interior. (See Patent Document 2).

Japanese Unexamined Patent Publication No. 2015-20451 Jikkai Sho 62-198149

However, in the invention described in Patent Document 1, since the structure allows air to escape, there still remains a problem that the performance of sound insulation, dust resistance and watertightness is deteriorated.
On the other hand, in the invention described in Patent Document 2, since the region of the annular space is narrowed, measures for sound insulation and dust resistance are taken, but the shielding member is integrally molded into the two seal portions. Since it has been used, there is a risk that the sufficient sealing function will not be exhibited.

Therefore, an object of the present invention is to provide a vehicle door structure having excellent sound insulation and door closing property while ensuring sufficient sealing property.

In order to achieve the above object, the present invention has a first seal portion (10) and a second seal portion (10) for sealing between the door (1) and the body (2) in the hinge portion of the automobile door (1). 20) is a vehicle door structure provided on the inside and outside of the vehicle, respectively, and an annular space (M) is formed between the first seal portion (10) and the second seal portion (20). ,
The area of the annular space (M) is narrowed without interfering with the first seal portion (10), the second seal portion (20), and the door (1) that are bent when the door (1) is closed. A shielding member (100) is provided on the body (2) side.
The outer shell of the shielding member (100) on the door (1) side has a shape that follows the shape of the doors (1) that face each other.

Further, the present invention is characterized in that the ratio of the shielding material (100) occupying the region of the annular space (M) is 50% or more.

Further, the present invention is characterized in that the material constituting the shielding member (100) is an elastic body made of a rubber material or a resin material.

The symbols in parentheses indicate the corresponding elements or corresponding items described in the drawings and the mode for carrying out the invention described later.

According to the present invention, in the hinge portion of an automobile door, a shielding member for narrowing the region of the annular space formed between the first seal portion and the second seal portion that seals between the door and the body is provided on the body side. Therefore, the amount of air in the annular space is smaller than that in the case where the shielding member is not provided.
Therefore, when the door is closed, the air pressure compressed inside is lowered as compared with the case where the shielding member is not provided, so that it is possible to prevent the door from being deteriorated in closing property.

Moreover, in the present invention, only the shielding member is provided in the annular space, and the air is not released to the outside as shown in the conventional example. Therefore, the sound insulation, the dustproof property and the watertightness are deteriorated by the simple structure. It can be prevented from doing so.
Further, since the shielding member does not interfere with the first seal portion and the second sealing portion that are bent when the door is closed, and the door or the body (when the shielding member is provided on the body side, the door is covered with the shielding member). , If the shielding member is provided on the door side, it will not interfere with the body respectively), and by providing the shielding member, the sealing function of the first seal part and the second seal part will not be deteriorated, and it is sufficient. Can exert a good sealing function.

According to the present invention, when the shielding member is provided on the body side, the outer shell of the shielding member on the door side has a shape that follows the shape of the door on which the shielding member faces each other. Since the air pressure applied to the shielding member becomes substantially uniform, there is little variation and stable door closing property can be maintained.

Further, according to the present invention, since the ratio of the shielding member occupying the area of the annular space is 50% or more, the amount of air in the annular space is significantly reduced, and the air pressure in the annular space when the door is closed is greatly suppressed. be able to.

Further, according to the present invention, since the shielding member is made of an elastic body made of a rubber material or a resin material, it is lightweight and has excellent sound insulation, and when the annular space is narrowed due to a vehicle collision or the like. In addition, it can absorb the impact force and quickly respond to changes in the spatial shape.

As in the present invention, the idea of providing a shielding member in the annular space formed between the double seal portions, particularly in the hinge portion of the door, to narrow the region of the annular space is not disclosed in the above-mentioned patent documents. Of course, it does not exist in the past.

FIG. 6 is an enlarged cross-sectional view taken along line AA of FIG. 4 showing a main part of a vehicle door structure according to an embodiment of the present invention. FIG. 5 is an enlarged cross-sectional view taken along line AA of FIG. 4 showing a main part of another vehicle door structure according to an embodiment of the present invention. FIG. 5 is an enlarged cross-sectional view taken along the line AA of FIG. 4 showing a main part of yet another vehicle door structure according to an embodiment of the present invention. It is an external side view of an automobile. FIG. 5 is an enlarged cross-sectional view taken along the line AA of FIG. 4 showing a main part of a vehicle door structure according to a conventional example.

The vehicle door structure according to the embodiment of the present invention will be described with reference to FIGS. 1 and 4. The same reference numerals are given to the same parts as in the conventional example.
This vehicle door structure is particularly related to the hinge portion of the automobile door 1, and the first seal portion 10 and the second seal portion 20 for sealing between the door 1 and the body 2 are provided on the inside and outside of the vehicle, respectively. This is a door structure in which an annular space M is formed between the first seal portion 10 and the second seal portion 20.

The first seal portion 10 is integrally molded with the mounting base portion 11 attached to the flange F erected from the body 2 and the mounting base portion 11 inside the vehicle with respect to the second seal portion 20, and when the door 1 is closed, the first seal portion 10 is integrally molded with the mounting base portion 11. It has a hollow seal portion 12 that comes into contact with the door trim 5 provided inside the vehicle of the door 1 to close the inside and outside of the vehicle, and a lip portion 13 having a tongue-shaped cross section. The mounting base 11 has a substantially U-shaped cross section, and is provided with a holding lip portion 14 that extends inward and sandwiches the inserted flange F.
Further, the second seal portion 20 is integrally molded with the mounting base portion 21 attached to the panel of the door 1 via a clip or double-sided tape (not shown), and the body 2 facing each other when the door 1 is closed. It has a hollow seal portion 22 that is in contact with the door and closes the inside and outside of the vehicle together with the first seal portion 10 described above, and a lip portion 23 having a tongue-shaped cross section.

Then, a shielding member 100 that narrows the region of the annular space M is provided inside the vehicle at the corner of the body 2.
It is preferable that the shielding member 100 extends in the longitudinal direction like the first and second sealing portions 10 and 20, and occupies the region of the annular space M at a ratio of 50% or more. In the present embodiment, the occupancy ratio is set to 50%.

Further, in the cross-sectional shape of the shielding member 100, the outer shell of the shielding member 100 is the shape of the door 1 in which the shielding member 100 faces each other so that the distance between the outer shell on the door 1 side and the door 1 is substantially the same. It has a shape that follows.
According to this, when the door 1 is closed, the air pressure applied to the shielding member 100 from the door 1 side becomes substantially uniform, and it is possible to maintain a stable door closing property with little variation.
The cross-sectional shape of the shielding member 100 is not particularly limited, and may be, for example, considerably close to the door 1 side as shown in FIG.

Further, the material of the shielding member 100 is not particularly limited, but a material constituting the shielding member 100 made of an elastic body made of a rubber material or a resin material is lightweight and has excellent sound insulation and shock absorption. preferable. In this embodiment, an EPDM solid material is used and fixed to the body 2 using an adhesive material. It is also possible to fix it by using a magnet instead of the adhesive material.

When the speed at the time of closing the door 1 was measured between the one provided with the shielding member 100 and the one without the shielding member 100 as in the present embodiment, the minimum closing speed of the door 1 was the one provided with the shielding member 100. It can be seen that the door closing property was improved at 1.19 m / s when the shielding member 100 was provided, whereas it was 1.21 m / s when it was not provided.

According to such a vehicle door structure, in the hinge portion of the automobile door 1, the annular space M formed between the first seal portion 10 and the second seal portion 20 that seal between the door 1 and the body 2. Since the shielding member 100 for narrowing the region is provided on the body 2 side, the amount of air in the annular space M is smaller than that in the case where the shielding member 100 is not provided.
Therefore, when the door 1 is closed, the air pressure compressed inside is lowered as compared with the case where the shielding member 100 is not provided, so that it is possible to prevent the door 1 from being deteriorated in closing property.

Moreover, since the shielding member 100 is only provided in the annular space M and does not allow air to escape to the outside as shown in the conventional example, the sound insulation, dustproofness and watertightness are deteriorated by a simple structure. Can be prevented.
Further, since the shielding member 100 does not interfere with the first seal portion 10, the second sealing portion 20, and the door 1 that are bent when the door 1 is closed, the first sealing portion is provided by providing the shielding member 100. Sufficient sealing function can be exhibited without deteriorating the sealing function of 10 and the second sealing portion 20.

In the present embodiment, the shielding member 100 is provided on the body 2 side so as not to interfere with the first sealing portion 10, the second sealing portion 20, and the door 1, but as shown in FIG. 3, the shielding member It is also possible to provide 100 on the door 1 side so as not to interfere with the first seal portion 10, the second seal portion 20, and the body 2.

1 Door 2 Body 5 Door trim 10 1st seal part 11 Mounting base 12 Hollow seal part 13 Lip part 14 Holding lip part 20 2nd seal part 21 Mounting base 22 Hollow seal part 23 Lip part 100 Shielding member M Ring space

Claims (3)

In the hinge portion of the automobile door, a first seal portion and a second seal portion for sealing between the door and the body are provided on the inside and the outside of the vehicle, respectively, and between the first seal portion and the second seal portion. It is a vehicle door structure in which an annular space is formed.
A shielding member that narrows the region of the annular space without interfering with the first seal portion and the second seal portion that are bent when the door is closed and the door is provided on the body side.
A vehicle door structure characterized in that the outer shell of the shielding member on the door side has a shape that follows the shape of the doors facing each other. The vehicle door structure according to claim 1 , wherein the proportion of the shielding member occupying the area of the annular space is 50% or more. The vehicle door structure according to claim 1 or 2 , wherein the material constituting the shielding member is an elastic body made of a rubber material or a resin material.

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