JP2022047128A - Sealing structure for automobile and sealing material for automobile - Google Patents

Abstract

To provide a sealing structure for an automobile, which prevents soiling of clothing of a person who is getting into an automobile.SOLUTION: A protector 30 on the door 1 side is elastically brought into contact with a sealing material 40 mounted in the vicinity of the outer peripheral edge of a wheel arch portion 5. The sealing material 40 has: a mount base portion 41 mounted on the vertical plate 6 of a body; and a sealing hollow portion 42. The sealing hollow portion is surrounded by: an inside wall 43 of the vehicle, extending obliquely downward from the lower portion of the mount base portion 41 to the outside of the vehicle; an outside wall 44 of the vehicle, connected to the lower end of the inside wall of the vehicle and extending upward; and a coupling wall 45 extending horizontally from the upper end of the inside wall of the vehicle to the outside of the vehicle and connected to the outside wall of the vehicle. The protector 30 has an inclined plate portion 33 extending between the wheel arch portion 5 and the upper surface of a tire 2. When the door is closed, the upper side surface of the inclined plate portion 33 is elastically brought into contact with the lower portion of a connection portion 47 between the inside wall 43 of the vehicle and the outside wall 44 of the vehicle. The connection portion 47 has a substantially tongue-like cross section extending in a lip shape so as to gradually decrease in thickness in the inward-outward direction of the vehicle from an upper side toward a lower side.SELECTED DRAWING: Figure 3

Description

The present invention relates to an automobile sealing structure and an automobile sealing material that seals a gap between a door and a wheel arch portion facing the upper surface of a tire when the door is closed.

Conventionally, as shown in FIGS. 5 and 6, a structure for sealing a gap between an automobile door (rear door) 1 and a wheel arch portion 3 facing the upper surface of a tire 2 is known.
This is a sealing material 20 to which the projecting portion 11 of the protector 10 attached to the door 1 is attached to the outer peripheral edge of the wheel arch portion 3 and the attachment portion 21 having a substantially U-shaped cross section is attached when the door 1 is closed. The door 1 is brought into contact with the hollow portion 22 of the seal to close the gap between the door 1 and the wheel arch portion 3 (see, for example, FIG. 3 of Patent Document 1).

According to this, mud, pebbles and the like are prevented from entering the inside of the vehicle through the gap between the door 1 and the wheel arch portion 3.

Japanese Unexamined Patent Publication No. 2014-180921

However, in the seal structure shown in FIG. 6, when the door 1 is closed, the projecting portion 11 of the protector 10 elastically contacts and seals the central portion of the seal hollow portion 22 of the sealing material 20, so that the seal structure is below the impact position. Mud or the like adheres in the range X on the side.
Therefore, there is a problem that the clothes hit the surface of the lower range X of the sealing material 20 and become dirty when the occupant gets into the automobile when the door is opened.
Further, since the mounting portion 21 of the sealing material 20 is inserted into the flange 3a on the outer peripheral edge of the wheel arch portion 3, there is a problem that mud and dust enter into the mounting portion 21 having a substantially U-shaped cross section.
Further, the protector 10 is made of resin and has lower rigidity than the metal door 1 and is easily deformed. If the amount of deformation of the protector 10 is large, the appearance of the vehicle deteriorates and the stabilization of the sealing function is impaired. Occurs. Therefore, it is necessary to design so as to maintain a low compressive load in the bullet contact between the projecting portion 11 of the protector 10 and the seal hollow portion 22 of the sealing material 20.

Therefore, an object of the present invention is to provide an automobile seal structure and an automobile sealant for preventing clothes from being soiled during riding.
Another object of the present invention is to provide a seal structure for an automobile in which the amount of deformation of the protector is minimized.
Another object of the present invention is to provide an automobile sealing structure and an automobile sealing material for stabilizing the sealing function.

In order to achieve the above object, in the automobile seal structure of the present invention, the protector (30) attached to the automobile door (1) is positioned on the upper surface of the tire (2) with the door (1) facing the protector (30). The door (1) and the wheel arch portion (5) are closed by colliding with the seal hollow portion (42) of the sealing material (40) attached near the outer peripheral edge of the wheel arch portion (5). It ’s a car seal structure.

The sealing material (40) has a mounting base portion (41) mounted on the outside of the vehicle of a vertical plate (6) of a body erected above the outer peripheral edge of the wheel arch portion (5) and the mounting base portion (41). The seal hollow portion (42) is provided at the lower portion of the vehicle, and the seal hollow portion (42) has a vehicle inner side wall (43) extending diagonally downward from the lower portion of the mounting base portion (41) to the lower outside of the vehicle, and the inside of the vehicle. A vehicle outer wall (44) connected to the lower end of the side wall (43) and extending upward, and a connecting wall (44) extending horizontally from the upper end of the vehicle inner side wall (43) to the outside of the vehicle and connected to the vehicle outer wall (44). 45) Surrounded by
The protector (30) is attached to the inner peripheral edge portion of the door (1), and the inclined plate portion (33) extends diagonally downward inside the vehicle between the wheel arch portion (5) and the upper surface of the tire (2). When the door (1) is closed, the upper side surface of the inclined plate portion (33) is a connecting portion (47) between the vehicle inner side wall (43) of the sealing material (40) and the vehicle outer wall (44). It touches the bottom and
The connecting portion (47) is characterized by having a substantially tongue-shaped cross section extending in a lip shape so that the thickness in the vehicle interior / external direction gradually decreases from the upper side to the lower side.

Further, the present invention is characterized in that a seal lip (48) that repels the vertical plate (6) is provided on the upper portion of the vehicle inner side wall (43).

Further, the present invention is characterized in that a concave portion (49) is formed on the inner side surface of the inner side wall (43) of the vehicle.

Further, the present invention is an automobile sealing material for closing a gap between an automobile door (1) and a wheel arch portion (5) where the door (1) faces and is located on the upper surface of a tire (2).
A mounting base (41) mounted on the outside of the vehicle of a vertical plate (6) of a body erected above the outer peripheral edge of the wheel arch portion (5), and a hollow seal provided at the bottom of the mounting base (41). The seal hollow portion (42) has a portion (42), and the seal hollow portion (42) has a vehicle inner side wall (43) extending diagonally downward from the lower portion of the mounting base portion (41) to the lower outside of the vehicle, and a lower end of the vehicle inner side wall (43). Surrounded by a vehicle outer wall (44) connected to and extending upward, and a connecting wall (45) extending horizontally from the upper end of the vehicle inner side wall (43) to the vehicle outer side and connected to the vehicle outer wall (44). Become,
The connection portion (47) between the vehicle inner side wall (43) and the vehicle outer wall (44) has a substantially tongue-shaped cross section extending in a lip shape from above to downward so that the thickness in the vehicle interior / exterior direction gradually decreases. It is characterized by being.

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

According to the seal structure of the automobile of the present invention, the upper side surface of the inclined plate portion of the protector attached to the door constitutes the inner side wall and the outer wall of the vehicle constituting the seal hollow portion of the seal material attached to the outer peripheral edge side of the wheel arch portion. Since it comes into contact with the lower part of the connecting portion of the vehicle, it is possible to prevent mud and the like from adhering to the outer surface of the vehicle below the connecting portion.
Therefore, even if clothes such as trousers and skirts come into contact with the outer surface of the sealing material when the occupant gets into the vehicle, there is almost no concern that the clothes will get dirty.
In addition, when the door is opened, the vehicle body side (seal material) does not look dirty and does not look bad.

Further, according to the present invention, the connecting portion has a lip-like shape extending downward from above and has a substantially tongue-shaped cross section, and this portion comes into contact with the inclined plate portion of the protector, so that the compressive load of the sealing material increases excessively. Is prevented. In addition, it is possible to prevent the inclined plate portion of the protector from being excessively deformed at the time of impact and deteriorating the appearance. This also stabilizes the sealing function of the sealing material.

Further, according to the present invention, the thickness of the connecting portion gradually decreases from the upper side to the lower side in the vehicle interior / external direction, so that the compressive load of the sealing material increases and the inclined plate of the protector at the time of impact contact. It is more prevented that the portion is excessively deformed.

Further, according to the present invention, a seal lip is provided on the upper portion of the inner side wall of the vehicle so as to be provided with a seal lip that repels the vertical plate of the body erected above the outer peripheral edge of the wheel arch portion to which the seal material is attached. It is prevented that mud or the like enters upward from between the mounting base of the sealing material and the vertical plate.

Further, according to the present invention, since the concave portion is formed on the inner side surface of the inner side wall of the vehicle, it is possible to prevent the door closing property from being deteriorated by reducing the load of the hollow portion of the seal.

Further, according to the automobile sealing material of the present invention, the inside of the door is in contact with the lower part of the connection portion between the inner side wall of the vehicle and the outer wall of the vehicle constituting the seal hollow portion of the sealing material attached to the outer peripheral edge side of the wheel arch portion. , Mud and the like are prevented from adhering to the outer surface of the vehicle below the connection portion.
Therefore, even if clothes such as trousers and skirts come into contact with the outer surface of the sealing material when the occupant gets into the vehicle, there is almost no concern that the clothes will get dirty.
In addition, when the door is opened, the vehicle body side (seal material) does not look dirty and does not look bad.

Further, according to the present invention, the connecting portion has a lip-like shape extending downward from above and has a substantially tongue-shaped cross section, and this portion comes into contact with the inside of the vehicle of the door, so that the compressive load of the sealing material increases excessively. Is prevented. This also stabilizes the sealing function of the sealing material.
Further, since the thickness of the connecting portion gradually decreases from the upper side to the lower side in the vehicle interior / external direction, it is possible to prevent the compressive load of the sealing material from increasing.

FIG. 5 is an enlarged cross-sectional view taken along the line AA of FIG. 5 showing a state when a door is opened in a seal structure of an automobile according to an embodiment of the present invention. It is a side view of the main part which shows the state when the door is opened in the seal structure of the automobile which concerns on embodiment of this invention. FIG. 5 is an enlarged cross-sectional view taken along the line AA of FIG. 5 showing a state when the door is closed in the seal structure of the automobile according to the embodiment of the present invention. FIG. 5 is an enlarged cross-sectional view taken along line AA of FIG. 5, showing a state when a door is opened in a seal structure of another automobile 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. 5 showing a state when the door is closed in the seal structure of the automobile according to the conventional example.

The seal structure of the automobile according to the embodiment of the present invention will be described with reference to FIGS. 1 to 3 and 5. FIG. 1 shows a state when the door (rear door) 1 is open, and FIG. 3 shows a state when the door 1 is closed. The same reference numerals are given to the same parts as in the conventional example.
The seal structure of the automobile is such that the protector 30 attached to the door 1 of the automobile is opposed to the protector 40 and the seal material 40 is attached to the vertical plate 6 near the outer peripheral edge of the wheel arch portion 5 located on the upper surface of the tire 2. The door 1 is brought into contact with the hollow portion 42 of the seal to close the gap between the door 1 and the wheel arch portion 5.

As shown in FIG. 1, the sealing material 40 includes a mounting base 41 mounted via a clip K on the outside of a vertical plate 6 of a body erected upward from the outer peripheral edge of the wheel arch portion 5, and a mounting base 41. It has a seal hollow portion 42 provided at the lower part of the. As shown in FIG. 2, the sealing material 40 also extends in an arch shape along the wheel arch portion 5, and is fixed to the vertical plate 6 with clips K at regular intervals. The sealing material 40 can be fixed to the vertical plate 6 by using a double-sided adhesive tape (not shown) instead of the clip K.

The seal hollow portion 42 of the sealing material 40 has a vehicle inner side wall 43 extending diagonally downward from the lower part of the mounting base 41 to the lower outside of the vehicle, a vehicle outer wall 44 connected to the lower end of the vehicle inner side wall 43 and extending upward, and an upper end of the vehicle inner side wall 43. It is surrounded by a substantially triangular shape with a lower connecting wall (connecting wall) 45 extending horizontally from the vehicle to the outside of the vehicle and connected to the vehicle outer wall 44.
The mounting base 41 of the sealing material 40 has a plate shape parallel to the vertical plate 6 and extending in an arch shape like the vertical plate 6. The other end of the lower connecting wall 45, one end of which is connected below the vertical center of the vehicle outer wall 44, is connected to the lower part of the mounting base 41, and one end thereof is connected to the upper part of the mounting base. The other end of the upper connecting wall 46 connected above the central portion in the vertical direction of the outer side wall 44 is connected. The upper portion of the vehicle outer wall 44 extends upward from the upper connecting wall 46, and the head of the clip K is housed in the space surrounded by the mounting base 41, the lower connecting wall 45, the upper connecting wall 46, and the vehicle outer wall 44. .. As a result, the mounting position of the sealing material 40 with respect to the vertical plate 6 is higher than the position of the sealing hollow portion 42.

In the seal hollow portion 42 of the sealing material 40, the connecting portion 47 to which the lower portion of the inner side wall 43 of the vehicle and the lower portion of the outer wall 44 of the vehicle are connected has a lip shape extending downward from above and has a substantially tongue-shaped cross section and is upward. It is formed so that the thickness in the inside and outside of the vehicle gradually decreases from the bottom to the bottom. Further, the position of the lower end of the connecting portion 47 extends to a position lower than the position of the wheel arch portion 5 to prevent mud and the like from scattering from the tire 2 to the outside of the vehicle.

Further, a seal lip 48 is provided on the upper portion of the inner side wall 43 of the vehicle of the hollow seal portion 42, which extends downward and inward of the vehicle and whose tip end is in bullet contact with the vertical plate 6, and mud or the like from the tire 2 is removed from the sealing material 40. It prevents the vehicle from entering upward from between the mounting base 41 and the vertical plate 6. The thickness of the seal lip 48 in the vehicle interior / external direction is smaller than the thickness of the connecting portion 47.
A concave portion 49 is formed on the inner side surface of the inner side wall 43 of the vehicle on the base side of the seal lip 48, and the load of the hollow seal portion 42 is reduced to prevent deterioration of the door closing property.

The sealing material 40 is not particularly limited, but is made of a rubber or resin foam material. In the case of rubber, EPDM (ethylene propylene rubber) can be mentioned, and in the case of resin, TPO (olefin thermoplastic resin) can be mentioned, but the present invention is not limited thereto.
Further, the specific densities of the mounting base 41, the lower connecting wall 45, and the upper connecting wall 46 may be set higher than those of other parts.

On the other hand, the protector 30 is made of hard resin, and as shown in FIG. 3, it has a plate-like shape extending in the vertical direction and is attached to the inner peripheral edge of the door 1. From the lower part of the cover plate portion 32 that covers the inner panel 1a and the outer panel 1b that extend horizontally and the tip portions of the outer panel 1b come into contact with the hemming-joined portion H from below and cover the portion. It has an inclined plate portion 33 extending diagonally downward inside the vehicle and an intermediate plate portion 34 extending horizontally from the mounting plate portion 31 to the outside of the vehicle above the cover plate portion 32.
When the door 1 is closed, the inclined plate portion 33 extends between the wheel arch portion 5 and the upper surface of the tire 2, and the tip portion 33a of the inclined plate portion 33 is a portion slightly inside the vehicle from the position of the vertical plate 6. Is located in.

When the door 1 is closed, the upper side surface of the inclined plate portion 33 of the protector 30 comes into contact with the lower portion of the connecting portion 47 of the vehicle inner side wall 43 of the sealing material 40 and the vehicle outer wall 44.
At this time, since the lower portion of the connecting portion 47 is in contact with the upper side surface of the inclined plate portion 33 of the protector 30 so as to be curved inward, the outer surface of the vehicle in the lower portion of the connecting portion 47 is in contact with the inclined plate portion 33 and the tire 2 is used. It is prevented from adhering mud and the like.
Here, it is inevitable that mud or the like adheres to the section from the inner side surface of the connecting portion 47 to the outer side surface of the seal lip 48, but when the occupant gets into the vehicle, clothes such as pants and skirts are used as the sealing material 40. Even if it hits the outer surface of the car, there is almost no concern that the clothes will get dirty.
Further, when the door 1 is opened, dirt is not directly seen on the vehicle body side (seal material) and the appearance is not bad.

Further, the connecting portion 47 between the vehicle inner side wall 43 of the sealing material 40 and the vehicle outer wall 44 has a lip shape extending downward from above and a substantially tongue-shaped cross section, and has a thickness in the vehicle interior / external direction from above to downward. The thickness gradually decreases, and this portion comes into contact with the inclined plate portion 33 of the protector 30, so that the compressive load of the sealing material 40 is prevented from being excessively increased. Further, it is also prevented that the inclined plate portion 33 of the protector 30 is excessively deformed at the time of impact, the amount of deformation of the protector 30 is minimized, and deterioration of the appearance is prevented. At the same time, the sealing function of the sealing material 40 is also stabilized.

In the present embodiment, the connecting portion 47 in which the lower portion of the inner side wall 43 of the vehicle and the lower portion of the outer wall 44 of the vehicle are connected in the sealing material 40 has a lip shape extending downward from above and a substantially tongue-shaped cross section, and further upward. It was formed so that the thickness in the vehicle interior / exterior direction gradually decreased from the bottom to the bottom, but as shown in FIG. 4, the connection portion 47 simply connects the lower portion of the vehicle inner side wall 43 and the lower portion of the vehicle outer wall 44. It is also possible not to extend it especially to the lower side.
In this case, when the connecting portion 47 comes into contact with the inclined plate portion 33 of the protector 30, the compressive load of the sealing material 40 increases, but the concave portion 49 is provided on the inner side surface of the vehicle inner side wall 43 on the base side of the seal lip 48. By forming the hollow portion 42, the load is reduced and the door closing property is prevented from deteriorating.

Further, as shown in FIG. 3, the inclined plate portion 33 of the protector 30 extends between the wheel arch portion 5 and the upper surface of the tire 2 when the door 1 is closed, and the tip portion 33a of the inclined plate portion 33 is a vertical plate. If the position is located from the position of 6 to the portion that has entered the inside of the vehicle, the position of the lower end of the connecting portion 47 is equal to or higher than the position of the wheel arch portion 5, as shown in FIG. There may be.

Further, a configuration in which the compressive load of the sealing material 40 does not excessively increase when the connecting portion 47 comes into contact with the inclined plate portion 33 of the protector 30 can be achieved by the shape and material of the sealing hollow portion 42. For example, the formation of the concave portion 49 can be omitted. For example, in the sealing material 40 shown in FIG. 3, it is possible not to form the concave portion 49 in particular.
It is also possible to omit the seal lip 48.

Further, in the present embodiment, when the door 1 is closed, the connecting portion 47 of the sealing material 40 is brought into contact with the inclined plate portion 33 of the protector 30 attached to the inside of the vehicle of the door 1, but the sealing material 40 is used. The connecting portion 47 can be elastically contacted with a protector having a shape that does not particularly have the inclined plate portion 33, or can be elastically contacted with a member replacing the protector or directly inside the vehicle of the door 1.

1 door (rear door)
1a Inner panel 1b Outer panel 2 Tire 3 Wheel arch part 3a Flange 5 Wheel arch part 6 Vertical plate 10 Protactor 11 Protruding part 20 Sealing material 21 Mounting part 22 Sealing hollow part 30 Protactor 31 Mounting plate part 32 Cover plate part 33 Inclined plate part 33a Tip part 34 Intermediate plate part 40 Sealing material 41 Mounting base 42 Seal hollow part 43 Car inner side wall 44 Car outer wall 45 Lower connecting wall (connecting wall)
46 Upper connecting wall 47 Connection part 48 Seal lip 49 Concave shape part H Hemming joined part K clip X Lower range

Claims (4)

The protector attached to the door of the automobile is brought into contact with the seal hollow portion of the sealing material attached to the vicinity of the outer peripheral edge of the wheel arch portion located on the upper surface of the tire with the door facing the door, and the door and the wheel arch portion are brought into contact with each other. It is a car seal structure that closes the gap between the door and the door.
The sealing material has a mounting base portion mounted on the outside of the vehicle of a vertical plate of a body erected above the outer peripheral edge of the wheel arch portion, and a sealing hollow portion provided below the mounting base portion. The hollow portion extends diagonally downward from the lower part of the mounting base to the outside of the vehicle, an outer wall connected to the lower end of the inner side wall of the vehicle and extends upward, and horizontally extends from the upper end of the inner side wall of the vehicle to the outside of the vehicle. Surrounded by a connecting wall connected to the outer wall of the vehicle,
The protector is attached to the inner peripheral edge portion of the door and has an inclined plate portion extending diagonally below the inside of the vehicle between the wheel arch portion and the upper surface of the tire, and when the door is closed, the protector is above the inclined plate portion. The side surface is in contact with the lower part of the connection portion between the inner side wall of the vehicle and the outer wall of the vehicle of the sealing material.
The connecting portion is a seal structure of an automobile characterized in that it has a substantially tongue-shaped cross section extending in a lip shape so that the thickness in the inside and outside of the vehicle gradually decreases from the upper side to the lower side. The seal structure for an automobile according to claim 1, wherein a seal lip that comes into contact with the vertical plate is provided on the upper portion of the inner side wall of the vehicle. The seal structure for an automobile according to claim 1 or 2, wherein a concave portion is formed on the inner side surface of the inner side wall of the automobile. It is an automobile sealing material that closes the gap between the automobile door and the wheel arch portion where the door faces and is located on the upper surface of the tire.
The seal hollow portion has a mounting base portion attached to the outside of the vehicle of a vertical plate of a body erected above the outer peripheral edge of the wheel arch portion and a seal hollow portion provided below the mounting base portion. An inner side wall of the vehicle extending diagonally downward from the lower part of the mounting base to the lower outside of the vehicle, an outer wall of the vehicle connected to the lower end of the inner side wall of the vehicle and extending upward, and an outer side of the vehicle extending horizontally from the upper end of the inner side wall of the vehicle to the outside of the vehicle. Surrounded by a connecting wall that connects to the wall,
The connection portion between the inner side wall of the vehicle and the outer wall of the vehicle has a substantially tongue-shaped cross section extending in a lip shape so that the thickness in the inside / outside direction of the vehicle gradually decreases from the upper side to the lower side. Material.

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