JPH078268Y2 - Automotive weather strip connection structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a weather strip mounted along the inner periphery of a door frame of an automobile.

[Prior Art] As shown in FIG. 1, a weather strip 3 is attached along the inner periphery of a door frame 1 of an automobile.
Of the weather strip 3, a portion (called a horizontal portion) 3A that is pushed up by the door glass 2 when the door glass is closed,
The part that guides the door glass 2 that moves up and down (called the vertical part)
An extruded material is used for 3B, and ends of these extruded materials are connected by molding to form a corner portion 3C.

FIG. 4 shows the corner portion 3C of the above-mentioned molding, the horizontal portion.
The ends of 3A and the vertical portion 3B are each cut in the direction perpendicular to the longitudinal direction, and the ends are connected by molding in a state where they are opposed to each other at a substantially right angle to form a corner 3C.

[Problems to be solved by the present invention] By the way, even if the same rubber material is used in the horizontal portion 3A and vertical portion 3B of extrusion molding and the corner portion 3C of molding, there is a difference in color and gloss. I have a bad experience. In the vertical portion 3B, the inner and outer lips 3 are continuously formed following the extrusion molding process during manufacturing.
Although the facing surface (glass sliding surface) of 6 and 37 is subjected to surface slipping treatment, it is extremely troublesome to perform surface slipping treatment after molding at the corner 3C, which is generally not done. Poor slidability. For the above reasons, it is required that the die-molding corner portion 3C be as small as possible.

As a means for reducing the size of the corner portion 3C, it is conceivable that the terminals of the horizontal portion 3A and the vertical portion 3B are cut obliquely and both terminals are arranged in parallel and close to each other, and both terminals are connected by molding. However, as shown in FIG. 4, in the structure in which the horizontal portion 3A is provided with the hollow seal portion 30 that is pushed up by the door glass inside the outer lip 32, the horizontal portion 3A and the vertical portion 3B have significantly different cross-sectional shapes. It is difficult to connect the terminals close to each other by molding.

Therefore, an object of the present invention is to provide a connection structure of a weather strip in which a die-molding corner portion appearing in the appearance is made as small as possible without abruptly changing its cross-sectional shape, and an object thereof is to solve the conventional problems.

[Means for Solving the Problems] As shown in FIGS. 2 and 3, the present invention cuts the end of the horizontal portion 3A of the extrusion molding obliquely to the longitudinal direction, while the vertical portion of the extrusion molding is performed. An extension portion 360 is formed by extending the outer lip 36 upward in the longitudinal direction at the end of 3B, and the extension portion 360 and the end portion of the outer lip 32 of the horizontal portion 3A that is cut in the oblique direction are closely opposed to each other. Place the entire end of the horizontal section 3A and the vertical section 3B by molding and connect the corner section 3C.
Is formed.

[Operation] The outer lip 36 of the vertical portion 3B and the outer lip 32 of the horizontal portion 3A, which appear in the appearance, have almost the same cross-sectional shape, especially on the tip side. Can be connected by molding. In addition, since the other portions other than the outer lip have a sufficient space between the terminals, even if the cross-sectional shapes are different from each other, the connection can be smoothly performed without suddenly changing the cross-sectional shape by molding.

[Embodiment] FIGS. 1 to 3 show an embodiment of the present invention. Weather strip 3 attached along the inner circumference of the door frame 1
Of these, the horizontal portion 3A that is pushed up by the door glass 2 when the door glass is closed includes a mounting portion 31 to the door frame 1, and an outer lip 32 and an inner lip 33 that project from both inner and outer ends and face each other. Part 31 and outer lip 32
The hollow seal part (30) is formed by connecting the above with a seal wall (34). In the horizontal portion 3A, the inner lip 33 and the seal wall 34 are made of sponge rubber, and the other is an integrally extruded body made of solid rubber. The outer and inner lips 32, 33 pinch the door glass 2 from inside and outside.

The vertical portion 3B that guides the door glass when moving up and down includes a mounting portion 35 to the door frame 1, and an outer lip 36 and an inner lip that project from both ends inside and outside and face each other.
It is equipped with 37 and is an extruded body of solid rubber.

The ends of the horizontal portion 3A and the vertical portion 3B are corner portions formed by molding.
Connected at 3C.

As shown in FIGS. 2 and 3, the end of the horizontal portion 3A is cut diagonally so that it descends forward as a whole from a direction substantially perpendicular to the longitudinal direction to a direction parallel to the longitudinal direction. is there. On the other hand, the end of the vertical portion 3B is cut at a right angle to the longitudinal direction as shown in FIG. 2 and FIG. 3, particularly FIG. It is formed by cutting and cutting the lip 37 side in a right angle direction, so that an extension portion 360 of the outer lip 36 is formed at the end.

In order to connect these both ends by molding, the terminal opening of the hollow seal portion 30 of the horizontal portion 3A formed by the mounting portion 31 and the seal wall 34 is closed with a core, and the horizontal portion 3A and the vertical portion 3B are connected. Place them almost at right angles, set these ends in the mold with the ends of the outer lips 32, 36 being close to each other and the ends of the inner lips 33, 37 facing each other, and injecting the rubber material into the mold. Then, the outer lips 32, 36, the mounting portions 31, 35, and the inner lips 33, 37 of the horizontal portion 3A and the vertical portion 3B are connected by molding.

The entire corner 3C of the mold has the shape shown in FIG. 3, and the outer lip 3 appears along the door frame 1 in the exterior of the door.
The corner portion 3C 'to which 2 and 36 are connected becomes small as shown in FIG.

[Effects of the Invention] According to the molding connection structure of the corner portion of the present invention,
The part 3C 'that appears in the appearance of the molding can be made smaller than before, and the appearance quality around the door is improved. Further, since the outer lip 36 of the extrusion-molded vertical portion 3B extends upward, the lubricity-treated surface of the outer lip 36 extends upward so that the resistance can be reduced when the door glass is moved up and down. In addition, since the part of the vertical portion 3B is cut off in the portion that does not appear in the appearance because of this, the length of the mold forming corner portion is lengthened,
Even if the horizontal section 3A and the vertical section 3B have different cross-sectional shapes, the cross-sectional shape of the molding corner is gradually changed from the horizontal section to the vertical section, and the door glass seal at the molding corner section is adopted. And the adhesion to the corner portion of the door frame 1 can be improved.

[Brief description of drawings]

1 is a front view of an automobile door equipped with a weather strip, FIG. 2 is a perspective view of a corner portion of the weather strip of the present invention, FIG. 3 is an exploded view of the corner portion, and FIG. It is a perspective view of the corner part of a weather strip. 1 …… Door frame 2 …… Door glass 3 …… Weather strip 3A …… Horizontal part 3B …… Vertical part 3C …… Corner part (molding connection part) 30 …… Hollow seal part 32 …… Outside of horizontal part Lip 36 …… Vertical outer lip 37 …… Vertical inner lip

Claims (1)

[Scope of utility model registration request] 1. A weather strip mounted along the inner circumference of a door frame of a motor vehicle, the end of a horizontal portion having an outer lip and a hollow seal portion pushed up by a door glass, the outer lip and this end. In a weather strip having a corner portion formed by connecting a vertical portion terminal which guides the door glass between both lips by molding and forming a corner portion, the horizontal portion terminal is oblique to the longitudinal direction. In the vertical direction, an extension is formed at the end of the vertical portion upward in the longitudinal direction of the outer lip, and the tip of the extension is brought close to the end of the outer lip cut in the diagonal direction of the horizontal portion. A structure for connecting a weather strip for an automobile in which the ends of the horizontal portion and the vertical portion are connected to each other by molding to form a corner portion.