JPS61241228A - Seal structure in automobile - Google Patents

Abstract

PURPOSE:To aim at simplifying a seal structure, at making the closing force of a door lighter and at enhancing the sealability of the seal structure, by attaching a hollow weather strip on the outer surface of a vehicle center pillar, and by forming two projections opposing each other in the inside of the weather strip. CONSTITUTION:When a front door glass pane 5A is closed, the trailing edge of the pane 5A moves in the direction X to press the seal wall 32 of a weather strip 3 inward of the vehicle so that the outer end section 33 abuts against the front end of a projection 4A to limit the displacement. Meanwhile, when a rear door glass pane 5B is closed, its leading edge moves in the direction Y to press the rear half section of the seal wall 32 forward of the vehicle so that a projection 4B abuts against the rear surface of front end section of the projection 4A to limit the forward displacement of the outer end section 33. With this arrangement, the weather strip 3 on a center pillar 1 may be formed of only one member, and therefore, the structure thereof is simple, resulting in simple attachment thereof. Further, it is possible to reduce the closing force of a door and to enhance the sealability thereof.

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 portion of a center pillar 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 sponge rubber weather strips 3A and 3B 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 seal portion of the weather strip 3A is attached to the front door glass 5A.
The front edge of the rear door glass 4B comes into pressure contact with the seal portion of the weather strip 3B when the door is closed.

[Problems to be Solved by the Present Invention] The conventional center pillar seal structure described above has the inconvenience of having to prepare two weather strips 3A and 3B and attaching each to the center pillar 1. Further, when the front door glass 5A is bound 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, causing a problem that an opening is created between the seal wall and the head of the retainer 2. be. Further, as a general requirement for this type of weather strip, there is a requirement to improve sealing performance without increasing the door closing force.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a center pillar seal structure that has a simpler structure than the conventional one and meets the above requirements.

[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 weatherstrip 3, a first protrusion 4A protrudes outward from the mounting base 3.1, and its end is connected to the seal wall 32 of the weatherstrip 3 at a predetermined distance d1.
It faces the outer end 33 of.

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, 4B 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 toward the interior of the vehicle, and the outer end 33 comes into contact with the tip of the first protrusion 4A, causing the front Door glass 5A and seal wall 32
It acts as a seal with all halves of. 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 the center pillar 1 along the pillar 1;
One weather strip 3 is attached to the. The weather strip 3 is hollow and has a mounting base 31 to the retainer 2.
and a seal wall 32, which is large enough to almost cover the center pillar 1. The base 31 and the sealing wall 32 are constructed of sponge rubber, except for the outer end 33 of the sealing wall.

A first protrusion 4A made of solid rubber is formed in the center of the base 31 and protrudes toward the outside of the vehicle. The tip of the first protrusion 4A faces the inner surface of the outer end 33 of the seal wall 32 with a distance d1 therebetween.

On the other hand, the outer end 33 of the seal wall 32 is provided with a second protrusion 4B that protrudes toward the interior of the vehicle. Second protrusion 4B
is located toward the rear of the vehicle than the first protrusion 4A, is shorter in length than the first protrusion 4A, and has a tip that is closer to the first protrusion 4A.
It is opposed to the rear surface of the distal end thereof with a distance d2 therebetween. Outer end 33 of seal wall 32 and first and second projections 4A, 4
B is 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 seal structure of the center pillar configured as above, when the front door glass 1 to the door glass 5A are closed together with the door, the rear edge of the door glass 5A moves in the direction of the arrow X.
The entire seal wall 32 of the weather strip 3 is pushed toward the interior of the vehicle, and the outer end 33 abuts the tip of the first protrusion 4A, thereby restricting displacement. When the front door glass 5A is 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
The protrusions 4A and 4B do not contact 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 arrow Y, and the rear door glass 5B moves in the direction of arrow Y.
The front edge of B pushes the rear half of the sealing wall 32 of the weatherstrip 3 forward. As a result, the entire seal wall 32 is pushed forward, the second protrusion 4B comes into contact with the rear surface of the tip of the first protrusion 4A, and the forward displacement of the outer end 33 is restricted.

When the rear door glass 5B is 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, the door glass 5A15B and the weather strip 3 operate in the reverse order.

[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, no gap is created between the retainer 1 and the weather strip 3.

Furthermore, since the entire sealing wall of the weather strip 3 is deformed by the door glasses 5A and 5B when the door glasses are closed, the resistance to the door closing operation is small and the door closing force is small. Furthermore, since the displacement of the outer end 33 of the weather strip 3 is restricted just before the door is closed, the door glass 5
Sufficient sealing performance is exhibited between A, 5B and the seal wall 33.

Furthermore, the distance g 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 in the conventional structure shown in FIG. 3, improving the appearance of a portion of the center pillar. be able to.

[Brief explanation of the drawing]

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

Claims (1)

[Claims] In a 4-door hardtop vehicle, a hollow weather strip is attached to the outside surface of the center pillar along and covering the center pillar to create a space between the front door glass and the rear door glass. A first protrusion is formed in the weatherstrip so as to form a seal, and the first protrusion protrudes outward from the mounting base of the weatherstrip so that its tip faces the outer end of the seal wall of the weatherstrip at a predetermined distance. At the same time, a second protrusion is formed that protrudes from the outer end of the seal wall toward the interior of the vehicle, and whose tip faces the vehicle rear side surface of the first protrusion with a predetermined spacing therebetween. Automotive seal structure.