JP2002103986A - Door sealing structure for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the appearance of an upper frame portion of a door frame for an automobile on which an integrally molded seal member is mounted. SOLUTION: This sealing structure of covering the outer face of the upper frame portion 12A of the door frame along a roof side 3 of the automobile with a molded portion 6 integrally molded with a glass run 4 and a door weatherstrip 5 comprises the molded portion 6 formed of a harder material than that of the glass run 4 and the door weatherstrip 5 and a decorative layer 60 formed on the surface of the molded portion 6. The molded portion of the harder material is arched around its curvature and mounted along the upper frame portion 12A of the door frame to prevent the unevenness of the decorative layer 60.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seal structure for an automobile door, and more particularly to a seal structure for an upper frame portion of a door frame.

[0002]

2. Description of the Related Art Some automobile doors have a structure in which an outer surface of an upper frame portion of a door frame along a roof side is covered with a seal member mounted on the upper frame portion.

[0003] Generally, a glass run for sealing between the door frame and the periphery of the door glass is mounted on the inner peripheral side of the door frame as a seal member, and the door frame and the vehicle body door opening are also formed on the outer peripheral side thereof as a seal member. A door weatherstrip is provided for sealing between the rim and the door. Then, of the door frames of the front door and the rear door, at the door frame upper frame along the roof side of the vehicle body, a sealing member is attached so as to cover the outer surface of the door frame upper frame, and the mall is viewed along the roof side. There is a structure to give. (For example, actual Kaihei 3-
25324, JP-A-10-230742).

However, since the seal member is generally made of rubber or thermoplastic elastomer (TPE), it cannot be said that the seal member is dull black and has a good appearance.

[0005] Therefore, it is possible to take a means of attaching a decorative film such as a film having a glittering property to the portion of the seal member covering the upper frame portion of the door frame, or applying a decorative material. However, doing so has the following problems.

That is, the seal member is entirely made of a sponge material, or a portion made of a sponge material that comes into contact with a mating member and a solid material attached to a door frame, and is formed by extrusion. In the latter case, the hardness is set to about Hs 60 to 70 since the solid material of the mounting portion is required to be deformable when assembled to the door frame.
When the sealing member is curved in an arcuate shape along the upper frame portion of the door frame, a tensile force acts on the curved outer diameter side and a compressive force acts on the curved inner diameter side, so that inevitable irregularities are generated on the outer surface. Although the unevenness is not noticeable in the dark black portion, the decorative surface has a problem that the color and gloss do not appear to be constant due to the unevenness, but rather impair the appearance.

[0007]

SUMMARY OF THE INVENTION Accordingly, the present invention relates to a molding unit which is mounted on a door frame upper frame of an automobile and is integrally formed with a sealing member which covers an outer surface of the door frame upper frame. The aim was to realize a seal structure for the upper frame of the door frame, in which the decoration layer surface formed on the surface of the molding does not have irregularities when it is attached to the molding, and the color and gloss appear constant. is there.

[0008]

SUMMARY OF THE INVENTION According to the present invention, an outer surface of an upper frame portion of a door frame of an automobile along a roof side is covered with a seal member mounted on the upper frame portion. A molding portion, which is harder than the sealing member and extends in a band shape along the upper frame portion of the door frame, is formed, and a decorative layer such as a glittering material or a color material is formed on the surface of the molding portion. Then, a sealing member is attached to the upper frame portion in a state where the molding portion is fitted to an outer edge of the outer peripheral edge of the door frame upper frame portion (claim 1).

The seal member is a glass run attached to the inner peripheral side of the upper frame portion of the door frame and a door weather strip attached to the outer peripheral side. The molding portion is integrally formed with the glass run and the door weather strip. Or integrally formed with either the glass run or the door weather strip (claim 2).

[0010] The molding section is formed to have a substantially U-shaped cross section,
The outer peripheral edge of the upper frame portion of the door frame is fitted to the outer edge of the vehicle (claim 3).

Since the molding is made harder than the integral sealing member, the molding becomes a curved center line when the sealing member with the molding is bent along the upper frame of the door frame. Therefore, the tensile and compressive forces acting on the molding part are small, the surface on which the decorative layer is formed is hardly deformed and is maintained flat, and the color and gloss of the decorative layer are constant without any disturbance.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the automobile shown in FIG. 1A, a front door 1 will be described. A door frame 12 has a glass for sealing between the door frame 12 and the door glass 2 on its inner peripheral side. A run is mounted, and a door weather strip for sealing between the door frame 12 and a door opening edge of the vehicle body is mounted on an outer peripheral side of the run.

FIG. 1B shows a seal structure of a door frame upper frame portion 12A of the door frame 12, which is gently curved along the roof side 3 from the front edge of the door body 11 to the rear upper corner. In the upper frame portion 12A, a glass run 4 and a door weather strip 5 (hereinafter, referred to as a single body) which are integrally extruded and integrally connected via a molding portion 6 are provided.
A seal integrated molding) is attached.

The glass run 4 has opposite side portions 41.
a, 41b are formed to be longer than the other 41a, a substantially U-shaped main body section, a seal wall 43 connecting a front end of the side surface 41a and an intermediate portion of the side surface 41b, and a front end of the side surface 41b. An inner seal lip 44 is provided. The door weather strip 5 is in the shape of a tongue having a rectangular cross section. The molding portion 6 has a substantially U-shaped cross section, and the tip of one leg 61a is connected to a step near the side surface 41a on the outer surface of the bottom portion 42 of the glass run 4, and the tip of the other leg 61b is a square door weather. The strip 5 is connected to a step on the outer surface of the bent portion.

The seal-integrated molding consisting of the glass run 4, the door weather strip 5 and the molding section 6 is made of EPDM rubber, and the sealing wall 43 and the inner seal lip 44 of the glass run 4 and the entire door weather strip 5 are made of a sponge material. The glass run 4 has a hardness Hs6.
The molding 6 is made of a solid material having a hardness of Hs.
The hardness of the molding part 6 is set to be about Hs10 higher than the hardness of the main body part.

On the other hand, an outer peripheral edge 122 is formed in the upper frame portion 12A of the door frame so as to protrude outward from the upper end of the outer peripheral surface 121 substantially at right angles in a shelf shape. Door frame upper frame 12
At the front end of A, a door frame front vertical frame portion 12B is provided in a substantially vertical direction. The rear end of the door frame upper frame portion 12A is connected to the door frame rear vertical frame portion 12C. A triangular cover 13 for mounting a door mirror is provided at a triangular portion surrounded by a front end portion of the door frame upper frame portion 12A, a door frame front vertical frame portion 12B, and an upper front portion of the door body 11.

As shown in FIG. 2, the seal integrated molding is
The molding part 6 whose tip is connected to the bottom part 42 of the glass run 4
Is formed integrally with the outer surface of the bottom surface of the glass run 4 opposite to the leg portion 61a by a groove-shaped cross-section. In the process of taking out after extrusion, a glitter film 60 made of polyethylene or the like on which aluminum is vapor-deposited is adhered to the top surface 62 of the molding portion 6 by an attaching roller so as to wrap the same, and one end of the molding portion 6 is formed. A double-sided adhesive tape 51 is attached to the bottom surface of the door weather strip 5 connected to the leg 61b.

The seal-integrated molding is cut to the length of the upper frame portion 12A of the door frame, and as shown in FIG. 4, the rear end of the glass run 4 is mounted along the rear vertical frame portion 12C of the door frame. Is connected to the upper end of the mold by molding in a substantially L-shape. Further, at the front end of the seal-integrated molding, the connecting portion between the glass run 4 and the leg 61a of the molding portion 6 is cut to separate the glass running 4 side from the molding portion 6 and the door weather strip 5 side. .

As shown in FIG. 4, the molding unit 40 is connected to the molding run connecting the glass run 4 and the glass run 4A by the door frame upper frame 12A and the door frame rear vertical frame 12C. The glass run 4A is fitted to the frame corner portion and the glass run 4A is assembled to the rear vertical frame portion 12C of the door frame, and as shown in FIG. 3, the seal integrated molding is curved like a bow along the door frame upper frame portion 12A. The portion 6 is fitted over the outer edge of the outer peripheral edge 122 of the upper frame portion 12A, and the glass run 4 is engaged with the outer peripheral edge 122 and the outer periphery 121 of the door frame upper frame portion. (See FIG. 1B). At the front end of the seal-integrated molding, the glass run 4B connected to the tip of the glass run 4 cut off from the molding 6 and connected via the molding connection 40A to the front vertical frame portion 12B of the door frame. The fitting portion is locked and the molding portion 6 is the upper frame portion 12A of the door frame.
To the front edge of the outer peripheral edge 122.

As a result, the bright film 6 extends over the entire length of the upper frame portion 12A on the outer surface side of the door frame upper frame portion 12A.
0 forms a molding line. The front and rear vertical edges of the door glass 2 have vertical frame portions 12B,
The glass runs 4B and 4A respectively attached to the glass run 4B and 4A are moved up and down by being sandwiched by seal lips 45, and the upper edge is pressed against the seal wall 43 of the glass run 4 attached to the door frame upper frame portion 12A at the rising end. When the door is closed, the door weather strip 5 is moved to the door opening edge 31 along the roof side 3 of the vehicle body.
(FIG. 1B).

Incidentally, when the seal-integrated molding is curved in a bow shape along the door frame upper frame portion 12A, the molding portion 6 is harder than the other portions, so that the molding portion 6 has a curved center line. Therefore, the tensile force acting on the curved outer diameter side of the narrow molding portion 6 is much smaller than that on the door weather strip 5, and the compressive force acting on the curved inner diameter side is much smaller than that on the glass run 4. For this reason,
Almost no irregular deformation occurs on the top surface 62 of the molding part 4, and the glitter film 60 is maintained on a smooth surface. Therefore, the gloss does not become non-uniform due to irregular reflection of light, and the gloss is uniform over the entire length and the appearance is good. When the seal-integrated molding is curved, irregularities are inevitably generated on the surfaces of the glass run 4 and the door weather strip 5, but are inconspicuous because they are dull black.

For the surface treatment of the molding part 6, a color film may be adhered in addition to the glitter film, and the decoration layer may be formed by painting a glitter material or a color material.

In the above embodiment, the seal integrated molding is used in which the glass run and the door weather strip are integrated via the molding part. However, the molding part and the glass run are integrated and the door weather strip is formed as a separate body. Alternatively, the molding section and the door weather strip may be integrated into a single glass run.

Although the above embodiment is directed to the front door of an automobile, the same seal-integrated molding as that of the front door is mounted on the upper frame of the rear frame, and the rear door is mounted on the upper frame of the front and rear door frames. Form a molding along the entire length of the roof side.

[0025]

The present invention has a structure in which a molding unit is formed of a harder material than a sealing member and a decorative layer is formed on the molding surface in a seal-integrated molding attached to an upper frame of a door frame of an automobile. When the seal-integrated molding is curved along the upper frame portion of the door frame, the rigid molding portion becomes a curved center line, no irregularities due to bending are generated on the molding portion surface, and the decorative layer surface is maintained smooth. Therefore, gloss and color appear uniformly over the entire length, and the appearance quality around the door is improved.

[Brief description of the drawings]

FIG. 1A is a side view of an automobile to which the present invention is applied;
(B) is sectional drawing of the door frame upper frame part in the position along IB-IB line of (A).

FIG. 2 is a sectional view of the seal member with a molding of the present invention mounted on the upper frame portion of the door frame in a free state.

FIG. 3 is a perspective view of a front end of an upper frame portion of a door frame to which a seal member with a molding according to the present invention is attached.

FIG. 4 is a front view of an upper rear end corner portion of a door frame to which a sealing member with a molding according to the present invention is attached.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 11 Door main body 12 Door frame 12A Door frame upper frame part 12B, 12C Door frame vertical frame part 122 Outer peripheral edge 2 Door glass 3 Roof side 4 Glass run 5 Door weather strip 51 Double-sided adhesive tape 6 Mold part 60 Decorative layer

Claims (3)

[Claims] 1. An automobile door sealing structure in which an outer surface of an upper frame portion of a door frame of an automobile door is covered with a sealing member mounted on the upper frame portion, the door frame being integral with the sealing member and being harder than the sealing member. A molding portion extending in a belt shape along the upper frame portion was formed, and a decorative layer was formed on the surface of the molding portion, and the molding portion was fitted to an outer edge of the outer peripheral edge of the door frame upper frame portion. A seal structure for an automobile door, wherein a seal member is attached to an upper frame portion of a door frame in a state. 2. The sealing member includes a glass run for sealing between the upper frame portion of the door frame and an outer periphery of the door glass, and a gap between the upper frame portion of the door frame and a door opening edge along a roof side of the vehicle body. 2. The vehicle door sealing structure according to claim 1, wherein the sealing structure is one or both of a door weather strip to be sealed. 3. The automobile door seal structure according to claim 1, wherein the molding has a substantially U-shaped cross section and is fitted to an outer edge of an outer peripheral edge of the upper frame portion of the door frame.