JPH0376257B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a seal structure for an automobile, and particularly to a seal structure for a center pillar portion of a four-door hardtop automobile.

[Prior Art] FIG. 3 shows a cross section of the center pillar 1 of a four-door hardtop automobile as shown in FIG. 4, taken along line A-A.

A retainer 2 is attached to the outer surface of the center pillar 1, and weather strips 3A and 3B made of sponge rubber are attached to the front and rear of the retainer 2, respectively. The seal portion of each weather strip 3A, 3B is hollow, and the rear edge of the front door glass 5A is pressed against the seal portion of the weather strip 3A, and the front edge of the rear door glass 5B is pressed against the seal portion of the weather strip 3B when the door is closed.

However, with the conventional center pillar seal structure described above, there is the trouble of having to prepare two weather strips 3A and 3B and attaching each to the center pillar 1. Furthermore, when the front door glass 5A is closed together with the door from the X direction, the contact portion 30 of the seal wall of the weather strip 3A with the head of the retainer 2 is pulled, creating an opening between the weather strip 3A and the head of the retainer. .
In order to solve this problem, it has been proposed to integrate the front and rear weatherstrips into one hollow weatherstrip and install this weatherstrip along the center pillar (Utility Model Application No. 60-45272). . In order to ensure sealing performance, this weather strip has multiple pillars in the hollow that connect the mounting base and the seal wall pressed by the front and rear door glass. Ensures sealing performance. However, with this structure, a problem arises in that the tension of the pillars increases the closing force of the door or door glass.

[Problems to be Solved by the Present Invention] Therefore, the present invention has developed a center pillar seal structure that simplifies the structure by using a single weather strip along the center pillar, has good sealing performance, and does not increase the door closing force. This is what we provide.

[Means for Solving the Problems] As illustrated in FIG. 1, a hollow weather strip 3 is attached to the outer surface of the center pillar 1. Inside the hollow of the weather strip 3, a first protrusion 4A protrudes from the mounting base 31 toward the outside of the vehicle at approximately the center in the front-rear direction, and the end thereof is connected to the seal wall of the weather strip 3 at a predetermined interval d1. The outer end portion 33 of 32 is opposed to the outer end portion 33 of 32 .

On the other hand, a second protrusion 4B projects toward the inside of the vehicle from the outer end 33, and its end meets the vehicle rear side surface of the tip of the first protrusion 4A with a predetermined interval d2. They are facing each other. Both protrusions 4A, 4
B and the outer end 33 of the seal wall 32 are made of solid rubber.

[Function] When the front door glass 5A is closed together with the door from the X direction, the entire seal wall 32 of the weather strip 3 is pushed inward. Immediately before the front door glass 5A is completely closed, the outer end 33 comes into contact with the tip of the first protrusion 4A, and a sealing action is performed between the front door glass 5A and the front half of the seal wall 32. When the rear door glass 5B is closed together with the door, the entire seal wall is pushed forward and the second protrusion 4B engages with the first protrusion 4A, creating a seal between the rear door glass 5B and the rear half of the seal wall 32. act.

[Embodiment] As shown in FIG. 1, a retainer 2 is attached to the outer surface of a center pillar 1 along the pillar 1, and a weather strip 3 is attached to the retainer 2. Weather strip 3 is hollow,
It consists of a mounting base 31 to the retainer 2 and a seal wall 32, and is sized to almost cover the center pillar 1. The base 31 and the sealing wall 32 are made of sponge rubber, except for the outer end 33 of the sealing wall.

A first protrusion 4A made of solid rubber is formed at the center of the base 31 and protrudes outward from the vehicle so as to partition a semi-circular hollow into front and rear parts.
The tip of the first protrusion 4A faces the inner surface of the outer end 33 of the seal wall 32, which is located at the center of the seal wall 32 and projects most outwardly of the vehicle, with a distance d1 therebetween.

On the other hand, the outer end 33 of the seal wall 32 is formed with a second protrusion 4B that protrudes toward the interior of the vehicle. The second protrusion 4B is located on the rear side of the vehicle than the first protrusion 4A, has a shorter length than the first protrusion 4A, and has a tip spaced from the rear surface of the tip of the first protrusion 4A by d2. They are facing each other. The outer end 33 of the seal wall 32 and the first and second projections 4A, 4B are made of solid rubber.

The weather strip 3 provided with the first and second projections 4A and 4b is integrally extruded from sponge rubber and solid rubber.

In the center pillar seal structure configured as described above, the front door glass 5 is integrated with the door.
When A is closed, the rear edge of the front door glass 5A moves in the direction of arrow X, and the weather strip 3
The entire sealing wall 32 is pushed toward the inside of the vehicle, and just before the front door glass 5A is completely closed, the outer end 33 comes into contact with the tip of the first protrusion 4A, and its displacement is restricted. When the front door glass 5A is completely closed, the rear edge of the front door glass 5A further pushes the front half of the seal wall 32 into the state shown in FIG. 2. Note that when the rear door glass 5B is open and the front door glass 5A is closed, the first and second projections 4A, 4B do not come into contact with each other.

Next, when the rear door glass 5B is closed together with the door, the rear door glass 5B moves in the direction of the arrow Y, and the front edge of the glass 5B touches the weather strip 3.
Push the rear half of the seal wall 32 forward. As a result, the entire seal wall 32 is pushed forward, and just before the rear door glass 5B is completely closed, the second protrusion 4B comes into contact with the rear surface of the tip of the first protrusion 4A.
The forward displacement of the outer end portion 33 is restricted. When the rear door glass 5B is completely closed, the front edge of the rear door glass 5B further pushes the rear half of the seal wall 32 into the state shown in FIG. 2.

When the rear door glass 5B is closed first,
Door glass 5A, 5B and weather strip 3
The operation is the reverse order of the above.

[Effects] Since the weather strip 3 of the center pillar 1 is composed of one weather strip, the structure is simpler than the conventional two weather strips, and the installation work is also easier.

Furthermore, when the door glass is closed, the door glass 5A, 5B
Since the entire sealing wall 32 of the weather strip 3 is deformed without being restricted by the projections 4A and 4B, the resistance to the door closing operation is small and the door closing force is small. Furthermore, since the displacement of the seal wall 32 is regulated by the projections 4A, 4B before the door glasses 5A, 5B are completely closed, the door glasses 5A, 5B
Sufficient sealing performance is exhibited between 5B and the seal wall 32.

Furthermore, the distance l between the rear edge of the front door glass 5A and the front edge of the rear door glass 5B can be made smaller than the distance L in the conventional structure shown in FIG. 3, improving the appearance of the center pillar portion. be able to.

[Brief explanation of drawings]

1 and 2 show the cross-sectional structure of one embodiment of the present invention taken along line A-A in FIG.
The figure shows a sectional view when the door glass is open, Fig. 2 is a sectional view when the door glass is closed, and Fig. 3 is a sectional view showing the structure of a conventional example.
FIG. 4 is a perspective view of the automobile. DESCRIPTION OF SYMBOLS 1... Center pillar, 3... Weather strip of the present invention, 31... Mounting base, 32... Seal wall, 33... Outer end, 4A... First protrusion, 4
B...Second protrusion, 5A...Front door glass, 5B...Rear door glass.

Claims (1)

[Claims] 1. In a 4-door hardtop vehicle, a hollow weather strip is attached to the outer surface of the center pillar along and covering the center pillar to seal between the front door glass and the rear glass. In this way, inside the hollow of the weather strip, there is a groove that protrudes from the mounting base of the hollow at approximately the center of the hollow in the longitudinal direction toward the outside of the vehicle, and whose tip faces the outer end of the seal wall of the weather strip at a predetermined interval. a second protrusion protruding from the outer end of the seal wall toward the inside of the vehicle, the tip of which faces the vehicle rear side surface of the first protrusion at a predetermined distance; An automobile seal structure characterized by forming.