JPS631201B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a door weather strip, and more particularly to an improvement in a door weather strip provided with a sealing lip that comes into elastic contact with the door opening edge when the door is closed.

Generally speaking, in a door with a sash, taking a front door as an example, the door weather strip W is attached to the periphery of the door D, that is, around the sash 1, as shown in FIGS. 1 and 2 a, b, and c. It is attached to the periphery of the door body 2, and when the door D is closed, it comes into elastic contact with the door opening edge to seal the interior and exterior of the vehicle.

As an example of the conventional door weather strip W, there is a hollow weather strip main body 3 attached to the periphery of the door D, and a weather strip main body 3 protruding from the inside of the vehicle interior of the door D.
There is a seal lip 4 that comes into elastic contact with the edge of the door opening when closed, and according to this type, the door D
By increasing the amount of elastic deformation of the seal lip 4 during closing, the watertightness between the seal lip 4 and the edge of the door opening can be improved (see, for example, Japanese Utility Model Application Publication No. 116318/1983).

By the way, the sealing surface of the seal lip 4 with the door opening edge is located near the front waist part of the front door D, from the interior side of the vehicle to the exterior side of the vehicle due to the difference in the direction of entry of the weather strip with respect to the weather strip contact surface of the vehicle body. It reverses to . That is, at the upper part of the waist of the roof side rail 5 and the front pillar 6, as shown in FIGS. 2a and 2b, the door D
The surfaces extending in the longitudinal direction of the vehicle body with respect to the closing direction P are used as contact surfaces 5a and 6a with the seal lip 4, and the interior side surface 4a of the seal lip 4 is brought into elastic contact with the contact surfaces 5a and 6a. At the lower waist of the front pillar 6, as shown in FIG. 2c, a surface facing the closing direction P of the door D and extending in the vehicle width direction is a contact surface 6b with the seal lip 4,
The outer side surface 4b of the seal lip 4 is attached to this contact surface 6b.
This is the case when the two are brought into elastic contact. In this case, if the seal lip 4 is bent in advance toward the inside of the vehicle as shown by the two-dot chain line in FIG. Since the interior side surface 4a of the seal lip 4 comes into elastic contact with the contact surfaces 5a and 6a, the seal lip 4 comes into close contact with the door opening edge, but the contact surface 6 of the lower waist of the front pillar 6
Since the outer side surface 4b of the seal lip 4 comes into elastic contact with the door opening edge 4b, the seal lip 4 cannot come into close contact with the edge of the door opening very strongly. Therefore, in order to ensure sealing performance at the lower waist of the front pillar 6, the weather strip main body 3 is brought into elastic contact with the front pillar 6 at the lower waist of the front pillar 6, and together with the seal lip 4, the weather strip body 3 is attached to the inside and outside of the vehicle interior. It is heavily sealed. In addition, Fig. 2 a, b, c
, 7 is a roof panel, 8 is a roof drip channel, 9 is a roof drip molding, 10
is welt, 11 is door window glass, 12 is glass run, 13 is pillar drip channel,
14 is a pillar drip molding, 16 is a door hinge center, and 17 is a front fender.

However, in the case of such conventional door weather strips, the weather strip body 3
A groove portion 1 having a substantially V-shaped cross section is formed between the seal lip 4 and the seal lip 4.
5 is formed, so that during rainy weather, car washing, etc., water that falls on the door weather strip W portion of the roof side portion will flow into the groove portion 1.
This water may remain in the groove 1 from the roof side part to the front pillar 6 part.
5, and reaches a groove 15 surrounded by the weather strip main body 3, seal lip 4, and front pillar 6, as shown in FIG. 2c. At this time, since the watertightness between the seal lip 4 and the front pillar 6 is not so high,
There was a risk that water in the groove 15 would leak into the vehicle interior from between the seal lip 4 and the front pillar 6.

The present invention has been made based on the above points, and its purpose is to reliably prevent water flowing through the grooves of the door weather strip from leaking into the passenger compartment. The purpose of the present invention is to provide door weather strips that are designed to meet the needs of the public.

The gist of the present invention is to provide a door weather strip with a dam formed near the upper part of the seal surface inversion part of the seal lip to close the groove formed between the weather strip main body and the seal lip. It's a lip.

Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings.

In the embodiment shown in FIGS. 3 and 4, the basic structure of the door weather strip W for the front door D is the same as in the conventional case. and a seal lip 4 that protrudes from the interior side of the weather strip main body 3 and makes elastic contact with the edge of the door opening.
The seal lip 4 uses the interior side surface 4a of the roof side rail 5 and the upper part of the waist of the front pillar 6 as a sealing surface, and uses the outer side surface 4b of the lower part of the waist of the front pillar 6 as a sealing surface.

In this embodiment, a groove portion 15 having a substantially V-shaped cross section is formed between the weather strip main body 3 and the seal lip 4, and is located near the door waist portion, that is, near the upper portion of the seal surface inversion portion of the seal lip 4. A dam 20 for closing the groove 15 is formed integrally with the door weather strip W. As shown in FIG. 4, the upper surface of this dam 20 is formed as an inclined surface 21 that slopes diagonally downward toward the outside of the vehicle body.

Therefore, according to the door weather strip according to this embodiment, water falls on the door weather strip W at the periphery of the door D from the roof side portion and the front pillar 6 portion during rainy weather, car washing, etc. Water enters into the groove part 15 of the door weather strip W at the roof side part and the upper part of the waist of the front pillar 6. In this state, the water in the groove 15 is
As shown by arrow S, it flows downward from the roof side part to the front pillar 6 part, and is stopped by the dam part 20. At this time, the dam 2
Since the inclined surface 21 of 0 is inclined diagonally downward toward the outside of the vehicle body, the water dammed up by the dam portion 20 is pushed out toward the outside of the vehicle body as shown by the arrow S, and the water is reliably is ejected from the vehicle. Therefore, water does not flow down into the groove 15 of the door weather strip W at the lower waist of the front pillar 6, and water leaks into the passenger compartment from the sealing surface between the seal lip 4 and the front pillar 6. This situation is completely prevented.

In this embodiment, the dam 20 has an inclined surface 21, but it is not necessarily limited to this, and the upper surface of the dam 20 may be formed as a horizontal surface or the like. In this case, the water dammed by the dam 20 will overflow from the entire opening of the groove 15, and this overflowing water will flow into the groove 15 of the door weather strip W at the lower waist of the front pillar 6. In order to prevent the water from entering, the outer edge of the dam 20 may be brought into elastic contact with the contact surface 6b of the front pillar 6 to seal the space between the two. Further, in the above embodiment, only one dam 20 is formed, but the invention is not necessarily limited to this, and a plurality of dams 20 may be formed.
The water flowing in the groove 15 may be discharged to the outside of the vehicle in stages. Furthermore, in the above embodiment, the door weather strip W of the front door D
The present invention is applied to the rear door as well as the second door.
The present invention may be applied to door weather strips of door vehicles.

As explained above, according to the door weather strip according to the present invention, a dam is provided near the upper part of the seal surface inversion part of the seal lip to close the groove formed between the weather strip main body and the seal lip. Since the groove is formed, water traveling through the groove can be dammed by the dam and then discharged to the outside of the vehicle during rainy weather, car washing, etc. For this reason,
Water will no longer flow down in the groove at the sealing surface inverted portion of the seal lip, and a situation in which water will leak into the vehicle interior from the sealing surface inverted portion of the seal lip is reliably prevented. Furthermore, if the above-mentioned dam section is tilted diagonally downward toward the outside of the vehicle body, the water dammed up at the dam section can be reliably guided to the outside of the vehicle, and the water in the groove can be drained accordingly. The effect can be ensured.

[Brief explanation of the drawing]

Figure 1 is a side view of the car, Figure 2 a, b and c
are cross-sectional views taken along lines A-A, B-B and C-C in Figure 1, showing an example of a conventional door weather strip;
3 is an enlarged perspective view of section E in FIG. 1 showing an embodiment of the door weather strip according to the present invention, and FIG. 4 is a view taken in the direction of arrow F in FIG. 3 and a sectional view thereof. D...Front door (door), W...Door weather strip, 3...Weather strip body, 4...Seal lip, 15...Groove, 20...
...Weir part, 21...Slope surface.

Claims (1)

[Scope of Claims] 1. Consists of a weather strip main body attached to the periphery of the door, and a seal lip that protrudes toward the inside of the vehicle interior of the weather strip main body and comes into elastic contact with the door opening edge when the door is closed. In a door weather strip in which the sealing surface with the door opening edge is reversed from the side surface of the vehicle interior to the surface outside the vehicle interior near the door waist portion, a weather strip is provided near the upper portion of the sealing surface reversed portion of the seal lip. 1. A door weather strip characterized in that a dam is formed to close a groove formed between a strip body and a seal lip. 2. The door weather strip according to claim 1, wherein the dam is inclined obliquely downward toward the outside of the vehicle body.