JP3365006B2 - Automotive roof side weather strip - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof side weather strip for an automobile, and more particularly to a structure of a molding corner portion thereof. 2. Description of the Related Art In a frameless door vehicle as shown in FIG. 1, a roof side weather strip (hereinafter simply referred to as a weather strip) is provided on a roof side 1 from a front pillar 1A to a quarter pillar 1B. 3 is attached, and the periphery of the door glass 2 is sealed when the door is closed. [0003] The weather strip 3 is extruded,
At the corner, especially at the rear corner C where the curvature is large,
When bent into a corner shape, the cross-sectional shape is irregularly deformed, so that the mold forming corner portion 3A is interposed. FIG. 3 shows an extruded general portion of the weatherstrip 3. The base portion 31 is engaged with a retainer 5 fixed to the body panel 4, and a seal portion forming a hollow body with the base portion 31. 32. Generally, this type of weather strip 3 includes a seal lip 33 whose one end is in contact with the inner surface of the door glass 2 and whose other end is in contact with the door opening trim 6. Bridges 37 and 38 are provided in the hollow seal portion 32 to supplement the rigidity of the seal portion 32. [0005] However, in the molding corner 3A, it is difficult to mold a hollow body partitioned inside by a bridge, as shown in FIG. No bridge is formed in the seal portion 32. For this reason, when pressed by the door glass 2, the seal portion 32 is easily deformed excessively, has a lower glass sealing pressure than a general portion, and furthermore, the seal portion 32 is repeatedly deformed by opening and closing the door. May be bent and the sealing performance may be further reduced. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a structure in which a corner portion of a weather strip can be molded and has an appropriate glass sealing pressure which is not different from that of a general portion. SUMMARY OF THE INVENTION The present invention provides a vehicle
A base mounted along the side and hollow with the base
Forming body, the edge of the door glass is pressed when the door is closed
To form an extruded weather strip.
Roof side weather with corners formed by connecting in shape
In the strip, as shown in FIG. 2, a projection 34 is formed on the inner surface of the interior of the vehicle beyond the position where the door glass 2 is pressed by the molded corner 3A, and the projection 34 is formed on the base 31.
The protrusions 35 facing each other are formed with a small gap . In the mold forming corner portion 3A, the space portions on both sides of the projections 34 and 35 communicate with each other by the gap 36 between the projections 34 and 35, so that the mold can be formed using the core. . When pressed by the door glass 2, the projections 34 and 35 come into contact with each other to support the seal wall 320 and perform the same operation as the bridge. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG.
At the rear corner C, the extruded
Are connected at a molding corner 3A. The general part of the extrusion molding of the weather strip 3 has the same structure as a conventional product as shown in FIG. This general part is obtained by extruding sponge rubber. As shown in FIG. 2, the molding corner portion 3A is a base portion 3 which is locked by a retainer 5 fixed to the body panel 4.
1, a sealing body 32 formed by a sealing wall 320 connecting both ends in the width direction of the base 31, and a sealing part 32 against which the peripheral edge of the door glass 2 is pressed when the door is closed. The tip of the outside of the stretcher is the door glass 2
And a seal lip 33 that abuts on the inner surface of the door opening abuts against the door opening trim 6 at the tip inside the vehicle. A rib-like projection 34 is formed on the inner surface of the seal wall 320 on the inner side of the vehicle from the position where the door glass 2 abuts. A rib-shaped protrusion 35 is formed on the base 31 so as to face the protrusion 34 with a small gap 36 therebetween. The molding corner 3A is formed by inserting one end of an extruded weather strip at each end of a cavity of a mold having a cavity for molding the outer periphery of the corner, and inserting left and right circular circles into the cavity. It is formed by setting a core for molding the inner surface of the corner 3A where the arc-shaped space communicates with the narrow gap 36, and injecting a sponge rubber material into the cavity. After the molding, the mold is opened, and the core is removed so as to widen the gap 36 between the projections 34 and 35. In the figure, reference numeral 310 denotes a core extraction hole. By molding the corner 3A, both extruded weather strips are connected via the corner 3A. When the seal wall 320 is pushed by the door glass 2 when the door is closed, the seal wall 320
Since it is supported by 4, 35, a sufficient glass sealing pressure can be obtained in the same manner as in the general part of extrusion molding, and the sealing wall 320 is permanently deformed into a crushed shape by repeated excessive deformation as in the conventional case. Therefore, the sealing properties at both ends of the seal lip 33 are also maintained favorably. [0015] In the above embodiment, the mold forming corner portion
Oite has formed the projections on both the sealing portion and the base, one
Height impact of which is opposed only to put the other side with a slight gap person
The same sealing pressure as in the general part of extrusion molding.
Obtainable. However, the core was removed after molding.
The undercut of the core for the tall protrusions
As the amount increases and the core extraction work becomes troublesome,
The projection should be formed separately on the seal part side and the base part side.
It is advantageous in form. According to the present invention, a sufficient glass sealing pressure can be obtained without significantly deforming the entire corner portion when the door glass is pressed, in the molded corner portion of the hollow weather strip, and it can be used for a long time. Thereby, the corner portion is prevented from being permanently deformed into a crushed shape.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of an automobile to which a roof side weather strip of the present invention is applied. FIG. 2 shows a roof side weather strip of the present invention.
It is sectional drawing of the corner part C of FIG. FIG. 3 is a sectional view of a general portion of the roof side weather strip of the present invention. FIG. 4 is a view corresponding to FIG. 2 of a conventional roof side weather strip. [Description of Signs] 1 Roof side 2 Door glass 3 Roof side weather strip 3A Molded corner part 31 Base part 32 Seal part 320 Seal walls 34, 35 Projection

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho-56-25640 (JP, U) Japanese Utility Model Sho 58-12018 (JP, U) Japanese Utility Model Hei 5-12230 (JP, U) (58) Field (Int.Cl. ⁷ , DB name) B60J 10/04

Claims (1)

(57) [Claim 1] A base which is mounted along the roof side of an automobile, and a seal which forms a hollow body with the base and which presses the peripheral edge of the door glass when the door is closed. , Extrusion
Corner is formed by connecting a shape of a weather strip with molding
In the shaped roof side weather strip, a projection is formed on the inner surface of the interior of the vehicle from the position where the door glass comes into contact with the seal at the molding corner, and the projection is slightly different from the projection on the base.
An automobile roof side weather strip, wherein opposed projections are formed with a small gap .