JPH05178088A - Automobile door molding and its manufacture - Google Patents

Abstract

PURPOSE:To keep a projecting tip of a seal body always in contact with the surface of window glass when a molding body is arranged along the side edge of a door outer panel, by changing the amount of projection of the seal body in accordance with change of the separating distance between the surface of the window glass and the door outer panel. CONSTITUTION:The cross-section shape of a seal body 132 which closes the clearance between the surface 12a of window glass 12 and a molding body 131 which is mounted along the edge portion of an door outer panel 11 is changed in accordance with change in cross section of the door outer panel 11 along a side edge of the door outer panel 11. In this case, the amount of projection of the seal body 132 is particularly changed in accordance with change of the separating distance of the surface 12a of the window glass 12 from the door outer panel 11. Consequently, the seal body 132 projecting from the molding body 131 can always be kept in contact with the surface 12a of the window glass 12 even when the molding body 131 of door molding 13 is arranged along a waist line of the door outer panel 11 for improving the appearance quality.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle door molding mounted along the edge of a door skin.

[0002]

2. Description of the Related Art Generally, a door molding is attached to a door portion of a vehicle body panel along an edge portion of a door outer plate. As an example of mounting the door molding, Japanese Utility Model Laid-Open No. 57-125634, Japanese Patent Laid-Open No. 58-14982
No. 2, JP 61-35769, JP 62
-25529 publication. An example of the mounting structure of the door molding disclosed in these is shown in FIG. As shown in the figure, first, in the door outer plate 1, the upper edge portion corresponding to the waistline is bent in a stepwise shape toward the indoor side, and the flange portion 1a is formed at the bent edge portion. Is provided. An inner plate 1b is provided in contact with the flange portion 1a, and a door molding 2 is attached to the overlapping portion of the flange portion 1a and the inner plate 1b.

The door molding 2 has a molding body 21 having a substantially C-shaped cross section which covers a portion where the flange portion 1a of the door outer plate 1 and the inner plate 1b overlap each other, and the molding body 21 faces the window glass 3 side. And a sealing body 22 provided so as to protrude from the sealing body 22.
Seals by closing the gap formed between the molding body 21 and the windshield 3. The molding body 21 and the sealing body 22 have a constant cross-sectional shape in the longitudinal direction, that is, along the edge portion of the door outer plate 1, and the molding body 21 is attached with the flange portion 1a as a reference.

[0004]

At this time, the flange portion 1a, which serves as a mounting reference for the door molding 2, is arranged at a certain distance with respect to the window glass 3, and the door outer plate 1 and the window are arranged. The separation distance from the surface of the glass 3 is changed along the side edge direction of the door outer plate 1. This aims at securing an automobile living space and reducing air resistance when the vehicle is traveling. However, in this case, the bent portion of the door outer plate 1 is visible from the outside, and there is a problem that the appearance quality is particularly deteriorated.

Therefore, conventionally, a molding body is formed in a shape corresponding to the shape change of the bent portion corresponding to the waist line of the door outer plate 1, and the molding body is extruded from a fixed shape. There is also proposed a structure in which the seal portion is integrated. However, since a molding body having an irregular cross-sectional shape is generally molded by means such as pressing or injection, the number of parts increases and the number of mounting steps increases, which lowers productivity. There is a problem.

In view of the above, the present invention extrudes a seal body having a cross-sectional shape, which can be attached along the edge portion of the door outer plate arranged so as to be separated from the surface of the wind glass, in one piece over the entire length. It is an object of the present invention to provide an automobile door molding and a method for manufacturing the same that are capable of being manufactured.

[0007]

In order to achieve the above object, an automobile door molding according to the present invention is a molding mounted along an edge portion of a door outer plate arranged so as to be separated from a surface of a windshield. A body and a seal body protruding from the molding body so as to close the gap formed between the molding body and the windshield, and the separation distance between the door outer plate and the windshield surface is In an automobile door molding that is changed along the side edge direction of the door skin, the cross-sectional shape of the seal body in a direction orthogonal to the longitudinal direction is changed in the side edge direction of the door skin. The amount of protrusion of the seal body from the molding body is changed in accordance with the variation in the separation distance of the door outer plate from the windshield surface.

Further, in the method for manufacturing an automobile door molding according to the present invention, a sealing body protruding from a molding body attached along an edge portion of a door outer plate toward a window glass is extruded. An automobile door, which is formed by a die, and through which the sealing body is extruded through an extrusion molding port of a die having an opening shape corresponding to the cross-sectional shape of the sealing body in the direction orthogonal to the longitudinal direction. In molding, the opening shape of the extrusion molding opening in the die is changed at a predetermined timing in response to the variation in the separation distance of the door outer plate with respect to the windshield surface, and the protrusion amount from the molding body in the seal body is changed. It has a configuration in which the sealing body is extruded while being changed.

[0009]

According to each means having such a construction, the cross-sectional shape of the seal body in the direction orthogonal to the longitudinal direction, in particular, the projecting shape of the seal body to the window glass, is taken along the side edge direction of the door outer plate. Therefore, even if the molding body is arranged along the side edge of the door outer plate, the protruding tip portion of the seal body is always in contact with the windshield surface.

[0011]

Embodiments of the present invention will now be described in detail with reference to the drawings. First, as shown in FIG. 1, a window glass 12 is vertically movably held inside a door outer panel 11 of an automobile, and an upper edge corresponding to a waist line of the door outer panel 11 is held. A door molding 13 made of an elongated extruded member is attached to the portion.

As shown in FIG. 2, the upper edge portion of the door outer plate 11 corresponding to the waistline is bent at a substantially right angle so as to form a step toward the inside of the room. A flange portion 11b extending upward through the bent wall 11a is provided at the curved end portion. An inner plate 11c is arranged inside the door outer plate 11, and an upper edge portion of the inner plate 11c is in contact with an upper edge portion of the flange portion 11b from the inside. And these flange part 11b and inner side plate 11c
The door molding 13 is attached to the overlapping portion with.

The door molding 13 has a molding body 131 provided so as to cover the overlapping portion of the flange portion 11b and the inner side plate 11c from above, and the molding body 1
31 and a seal body 132 protruding toward the windshield 12 side. The molding body 131 is made of a long metal body having a substantially C-shaped cross section, and is attached with the flange portion 11b of the door outer plate 11 as a position reference. An outer edge portion of the molding body 131 is fixed on the bent wall 11a of the door outer plate 11 via an end rubber 14, and the molding body 1
The outer edge portion of 31 and the end rubber 14 are arranged along a fold line corresponding to the waist line of the door skin 11. This point will be described in detail below.

First, for the purpose of securing an automobile living space or reducing air resistance when the vehicle is traveling, the separation distance between the door outer plate 11 and the surface of the windshield 12 is along the side edge direction of the door outer plate 11. Has been changed. On the other hand, the cross-sectional shape of the molding body 131 in the direction orthogonal to the longitudinal direction and the cross-sectional shape of the door outer plate 11 are maintained at a constant shape in the side edge direction of the door outer plate 11. Therefore, the inner wall surface 13 of the molding body 131 supporting the seal body 132
The gap between 1a and the surface 12a of the window glass 12 is changed from α to β in the side edge direction of the door outer plate 11, as shown in FIG. 2, for example.

The seal body 132 is a molding body 13.
Substrate 132a adhered and fixed to the inner wall surface 131a of No. 1
And a pair of seal lips 132 protruding substantially parallel from the substrate 132a toward the window glass 12 side.
b, 132b. Each of the above seal lips 13
The tip portion of 2b is pressed against the surface 12a of the window glass 12 in a bent state.

At this time, the amount of protrusion of each of the seal lips 132b from the molding body 131 varies with respect to the separation distance of the door outer plate 11 from the surface of the window glass 12, that is, the inner wall surface 131a of the molding body 131 and the window glass 12. Of the gap between the surface 12a and the surface 12a (for example, from α to β). Therefore, the front end portion of each seal lip 132b is constantly pressed against the front surface 12a of the window glass 12 over the entire length in the side edge direction of the door outer plate 11 regardless of the above-described gap variation. Due to the configuration of the seal lip 132b,
The gap formed between the molding body 131 and the window glass 12 is closed and sealed.

As described above, in this embodiment, the seal body 132 is used.
The cross-sectional shape in the direction orthogonal to the longitudinal direction of the door outer plate 1
1 along with the change in cross section in the side edge direction.
Therefore, in order to improve the appearance quality, the door skin 11
Even when the molding body 131 is arranged so as to be along the waist line of the above, the protruding front end portion of the sealing body 132 is always in contact with the surface 12a of the wind glass 12.

Next, an apparatus for molding the above-mentioned door molding 12 will be described. First, as shown in FIG. 3, the molding material unwound from the coiler 31 is molded into the molding body 131 having the above-described shape through the plurality of forming rolls 32, and then the position detecting device 33 and the adhesive applying device. It is supplied to an extrusion molding die (die) 36 through 34 and an induction heating device 35, and is extrusion-molded integrally with the resin into the above-described cross-sectional shape. The extruded molding material is sent to the cutting device 39 by the take-up machine 38 through the cooling tank 37, and is cut into a predetermined length there. At this time, the feed amount of the molding body 131 detected by the position detection device 33 is applied to the control device 41, and the operation timing of the extrusion molding die 36 and the cutting device 37 is determined based on the input signal. Has been done.

The die provided in the extrusion molding die 36 includes two dies for synthetic resin extrusion as shown in FIGS. 4 and 5. These dies are composed of a first die 51 and a second die 52 which are arranged in parallel in the extrusion direction of the molding (direction perpendicular to the paper surface).
Since the second die 52 is superposed on the above, the extrusion molding port corresponding to the cross-sectional shape of the door molding 13 is defined. The first die 51 is installed in a fixed state, and the substrate 132 of the molding body 131 and the sealing body 132 in the door molding 13 is formed.
Extrusion molding port 511 having an opening shape corresponding to the outer shape of a.
And the seal lips 132b, 132b of the seal body 132
And an extrusion molding port 512 formed in a large opening shape including the outer shape of

On the other hand, the second die 52 is formed by cutting out one side portion of a plate-shaped member formed in a substantially trapezoidal shape so as to correspond to the outer shape of the seal lips 132b, 132b of the seal body 132. is there. This cutout portion is arranged so as to shield the extrusion molding port 512 in the first die 51, and is a partition side portion 521 for extrusion molding the molding material.
Is configured as. Partition side 5 of this second die 52
The pair of parallel sides sandwiching 21 are supported by the pair of guide bodies 522 and 522 so as to be movable in parallel with respect to the first die 51.

Further, at the rear edge of the second die 52,
One end of the connecting rod 523 is connected, and a drive motor 524 is connected to the extended tip end of the connecting rod 523 via a motion converter (not shown). The drive motor 524 is rotationally driven to move the second die 52 in parallel, and at this time, the shielding area of the first die 51 with respect to the extrusion molding port 512 is changed.

A method of molding the door molding 13 using such a molding molding device will be described. First, the narrow portion of the door molding 12, for example, the width α in FIG.
In the case of extruding the portion represented by, the first die 51
And the second die 52 are maintained in the positional relationship shown in FIG. In this state, the second die 52 is pushed to the minimum open position, and the extrusion forming port 51 of the first die 51 is pushed.
2 is set to be the minimum opening area. At this time, the molding body 131 is supplied to the extrusion forming port 511 of the first die 51.

When the narrow portion of the door molding 13 is extruded over a certain length in a state of a constant cross-sectional shape, the second die 52 starts to move to the right side in the drawing, whereby the extrusion port 512 is gradually opened. Expanded to the seal body 1
The projecting length of the 32 seal lips 132b and 132b is enlarged. And as shown in FIG.
When the die 52 is moved to the maximum open position, the first die 5
One extrusion forming port 512 is set to have a maximum opening area, and a wide portion of the door molding 13, for example, a portion represented by a width β in FIG. 2 is extruded. Thus, a series of door moldings 13 having different cross-sectional shapes are extruded integrally.

Next, the door molding 63 in the embodiment shown in FIG. 6 is also extruded over its entire length. As shown in the drawing, the upper edge portion corresponding to the waistline of the door outer plate 61 is bent so as to form an inverted U shape toward the indoor side. A flange portion 61b extending downward through the curved wall 61a is provided. And these folding walls 61
The door molding 63 is attached based on a and the flange portion 61b.

The door molding 63 is provided on the bent wall 61a via an end rubber 64 and a molding body 631 so as to project from the molding body 631 toward the windshield 12 side. And a seal body 632. The molding body 631 is made of a long metal body having a substantially L-shaped cross section, and the outer edge portion of the molding body 631 is along a fold line corresponding to the waist line of the door outer plate 61. It is arranged.

At this time, the cross-sectional shape of the molding body 631 in the direction orthogonal to the longitudinal direction and the cross-sectional shape of the door outer plate 61 are maintained at a constant shape toward the side edge direction of the door outer plate 61. The separation distance of the door outer plate 61 from the surface 12a of the window glass 12 is varied along the upper edge direction of the door outer plate 61. Therefore, the sealing body 6
Inner wall surface 631a of the molding body 631 supporting 32
And the gap between the surface 12a of the wind glass 12 and
It is varied along the direction of the upper edge of the door outer plate 61.

On the other hand, the seal body 632 is the molding body 13
Substrate 632a adhered and fixed to the inner wall surface 631a of No. 1
And a seal lip 632b and an upper edge lip 632c projecting from the middle portion and the upper edge portion of the substrate 632a toward the window glass 12 side, respectively.
The seal lip 632b and the upper lip 63
The amount of protrusion of 2c from the molding body 631 is the variation in the separation distance of the door outer plate 61 from the surface 12a of the window glass 12, that is, the inner wall surface 632a of the molding body 631.
And the surface 12a of the wind glass 12 are changed in accordance with the amount of change in the gap. As a result, the tip portion of the seal lip 632b is constantly pressed against the surface 12a of the window glass 12 in a bent state, and the gap formed between the molding body 631 and the window glass 12 is closed. The seal is done.

As described above, also in this embodiment, the cross-sectional shape of the seal body 632 in the direction orthogonal to the longitudinal direction is changed in accordance with the change in the cross section of the door outer plate 61 in the side edge direction. Therefore, in order to improve the appearance quality, the molding body 63 is arranged along the waistline of the door outer plate 61.
Even when 1 is arranged, the protruding tip of the seal body 632 is always in contact with the surface 12 a of the window glass 12.

[0031]

As described above, according to the present invention, the cross-sectional shape of the seal body, which closes the gap between the molding body attached along the edge portion of the door outer plate and the surface of the window glass, is set to the outside of the door. The appearance quality is changed by changing the cross-section in the side edge direction of the plate, and in particular, the protrusion amount of the sealing body is changed in accordance with the change in separation distance between the windshield surface and the door outer plate. Even when the molding body is arranged along the waistline of the door outer plate in order to improve the above, the protruding tip portion of the sealing body can be constantly brought into contact with the windshield surface, and such a door is used. The entire length of the molding can be extruded in a series.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a rear portion of an automobile to which the present invention is applied.

FIG. 2 is a perspective explanatory view showing an attachment structure of a door molding according to the first embodiment of the present invention.

FIG. 3 is an explanatory side view showing an entire example of the molding apparatus for the door molding shown in FIGS. 1 and 2.

FIG. 4 is an explanatory front view showing the structure of a die used in the molding apparatus shown in FIG.

FIG. 5 is a front explanatory view showing a moving state of the die shown in FIG.

FIG. 6 is an explanatory perspective view corresponding to FIG. 2 showing a mounting structure of a door molding according to a second embodiment of the present invention.

FIG. 7 is a perspective explanatory view showing a general example of door molding.

[Explanation of symbols]

 11 Door Outer Plate 12 Wind Glass 13,63 Door Molding 131,631 Molding Body 132,632 Sealing Body 51 First Die 52 Second Die

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location B60R 13/04 B 7912-3D // B29L 31:58 4F

Claims (2)

[Claims] 1. A molding body attached to an edge portion of a door outer plate arranged so as to be separated from the surface of the windshield and a gap formed between the molding body and the windshield. And a seal body protrudingly provided on the molding body, wherein the separation distance between the door skin and the windshield surface is changed along the side edge direction of the door skin, and the door molding for an automobile comprises: The cross-sectional shape of the seal body in the direction orthogonal to the longitudinal direction is changed along the side edge direction of the door outer plate, and the amount of protrusion of the seal body from the molding body is the door outer plate with respect to the windshield surface. A door molding for an automobile, characterized in that it is changed in accordance with a change in separation distance of the. 2. A door molding sealing body which projects from a molding body toward a windshield is formed by using an extrusion molding die, wherein the sealing body is traversed in a direction orthogonal to a longitudinal direction. In the method of manufacturing an automobile door molding, in which a sealing body of a door molding is extrusion-molded through an extrusion-molding port having an opening shape corresponding to a surface shape, the opening shape of the extrusion-molding port in the die is changed at a predetermined timing. Extrusion molding while performing the extrusion molding, wherein the extrusion amount of the sealing body of the door molding is performed while changing the protrusion amount of the sealing body from the molding body along the longitudinal direction. Door molding manufacturing method.