JP3061327B2 - Automotive fastener and manufacturing method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastener for a vehicle for locking a window molding mounted along a peripheral portion of a window glass of a vehicle and a method of manufacturing the fastener.

[0002]

2. Description of the Related Art Generally, a window molding is attached to a peripheral portion of a window glass attached to a window opening of a vehicle body panel. Specifically, a continuous elongate gap is formed between the periphery of the window glass and the opening edge of the window opening of the vehicle body panel, and a window molding made of an elongate member is formed in the gap. Sealing and decoration are performed by being inserted. Some of such wind moldings are mounted via fasteners fixed to the vehicle body panel side. The fastener is provided with a main body fixed to the vehicle body panel side, and the main body is provided with a locking portion for locking a part of the window molding.

In such automobile fasteners,
For example, as described in Japanese Utility Model Application Laid-Open No. 63-182915, a drain gutter groove is formed in a portion corresponding to the upper groove so as to stop rainwater dripping on the roof panel and flowing out onto the surface of the window glass. A configuration in which the shape is formed has been conventionally proposed.

[0004]

In the conventional fastener provided with a hand gutter groove for the drainage INVENTION SUMMARY is ## parts to form a Toimizo is, is constituted by a separate member from the body, Mo
A part having a gutter groove in the longitudinal direction of the rudding;
Although it takes a predetermined connection process when it is necessary to form the entire length of the fastener <br/> over so as to continuously integrate the portion without the groove, the overall length of the fastener from a combination of multi-part When a connection is made with the configuration, not only the problem that the design property is deteriorated at the connection portion occurs, but also the problem that the number of manufacturing steps is increased and the productivity is lowered is caused. In addition, in the above-mentioned Japanese Utility Model Application Laid-Open No. 63-182915, there is no description about how to process the connection portion.

The present invention, parts having Toimizo of fastener having a portion gutter grooves for draining having good blocking function
Design at the connection between the part and the part without gutter
And the ability to enhance both functionality and
An object of the present invention is to provide a vehicle fastener and a method for manufacturing a vehicle fastener capable of easily and continuously forming the vehicle fastener integrally and continuously over its entire length.

[0006]

Automotive fastener according to the present invention for achieving the above object, according to an aspect of the engagement of the windshield molding which is mounted along the periphery of the window glass fixed to the window frame opening of the body panel been made to stop, a body portion fixed to the vehicle body panel side is interposed in the gap formed between the inner peripheral edge portion of the window frame opening of the peripheral portion and the vehicle body panel of the window glass In the automobile fastener, the main body portion includes a locking portion provided to lock a part of the wind molding, wherein the locking portion has a constant cross-sectional shape over the entire length, The main body portion is formed of a series of integrated elongate members having different cross-sectional shapes in a part of the longitudinal direction, and the irregular cross-sectional portion in the main body portion is
And the outer <br/> wall surface facing the inner peripheral edge portion of the window frame opening of the vehicle body panel, the thickness between the inner circumference side wall face of the window glass side
It has a thick portion that swells to be thickened, and a gutter groove for blocking rainwater flowing down from the vehicle body panel side is recessed in the swelled thick portion of the main body so as to open to the outside of the vehicle. Configuration.

[0007] method of manufacturing a fastener according to the present invention defining the locking portion for windshield molding locking, a fastener provided on the main body portion fixed to a vehicle body panel, by a partition side of the die of the extrusion molding apparatus In the method for manufacturing a fastener that is formed by extrusion molding through an extrusion molding opening, the extrusion molding opening corresponding to the cross-sectional shape of the main body portion and the locking portion of the fastener is defined by each partition side of the plurality of dies. While extruding the entire length of the fastener in a series, the extrusion opening defined by the portion corresponding to the locking portion of the partition sides of the plurality of dies,
By performing extrusion while maintaining a constant outer shape,
The locking portion is extruded with a constant cross-sectional shape over the entire length of the fastener, and a portion corresponding to one side wall of the main body portion among the partition sides of the plurality of dies is separated from a portion corresponding to the other side wall. By making them close to each other, extruding is performed while expanding and reducing the extrusion opening corresponding to the main body, and forming a bulging thick portion having a different cross-sectional shape in a portion in the longitudinal direction of the main body, and By extruding while blocking a part by injecting a partition side of another die into an extrusion molding opening defined so as to mold a bulged thick portion of the main body, the extrusion of the main body is performed. the bulging thick part, to open the Toimizo of blocking rainwater exterior side
It has been made to a configuration in which recessed so.

[0008]

The vehicle according to the present invention having such a configuration is described.
Fasteners have a gutter groove portion and a gutter grooveless portion.
Between the minute and the thick part of the swollen thick part
And has a good design.
A gutter groove is formed on the bulging thick portion.
By having a small cross-section fastener
It has a sufficient size and suitable blocking function for
Highly functional gutters are provided efficiently. In addition,
In the manufacturing method of automobile fastener according to the present invention ,
The opening area of the extrusion opening defined by each partition of the plurality of dies is expanded or reduced, and when the extrusion opening is expanded, a bulging thick portion is formed on a part of the fastener, Another die is inserted into the expanded area of the extrusion opening defined by each partition piece to perform shielding, whereby a gutter groove is formed in the bulging thick portion. ing. Therefore, a fastener having a gutter groove having a suitable damping function is formed in a series .

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. As shown in FIGS. 1 to 5, a window molding 2 made of a long extrusion member is mounted on a peripheral portion of a rear window glass 1 of an automobile via a fastener 6. The wind molding 2 and the zipper 6 include an upper molding 2U and an upper zipper 6U mounted in a gap between the upper edge of the window glass 1 and the roof panel 3; And the lower fastener 2L and the lower fastener 6L mounted in the gap between the lower edge of the window glass 1 and the lower glass edge of the trunk lid panel 5. And a corner molding 2C and a corner fastener 6C which are arranged to be curved at the corners between these moldings and fasteners. Such a wind molding 2 and a fastener 6 are:
It is formed by extruding an elastic material such as rubber, synthetic resin or the like in a long strip shape by a molding device described later, and the moldings 2U, 2C, 2S, 2C, 2L and the fasteners 6U, 6C, 6S, 6C. , 6L are integrally and continuously extruded.

On the other hand, the inner peripheral edge of the glass mounting opening provided in the roof panel 3 and the rear pillar panel 4 is bent stepwise toward the indoor side so as to receive the window glass 1 and has an inclined wall 3a. , 4a are provided with flange portions 3b, 4b. The inclined wall 3
The rising heights of a and 4a are substantially uniform over the entire circumference, but the inclined walls 4a which are erected substantially vertically on the side portions shown in FIG. Between the window glass 1 and slightly inclined in the outer circumferential direction at
The gap between the window glass is enlarged and the upper portion shown in FIG.
The gap between them is widened .

The flange portions 3b of the body panels 3, 4
Dam rubber 7 is fixed on 4b,
An adhesive 8 is filled on the outer peripheral side of the dam rubber 7 by extrusion, and the window glass 1 placed on the dam rubber 6 is fixed to the substantially uniform height over the entire circumference by the adhesive 8. The above-described window molding 2 and fastener 6 are mounted in a gap formed between the outer peripheral edge of the window glass 1 and the inclined walls 3a, 4a of the vehicle body panels 3, 4.

The fastener 6 is mounted on and fixed to the flanges 3b, 4b of the vehicle body panels 3, 4.
1 and a locking portion 62 provided on a side wall of the main body portion 61 and holding a part of the wind molding 2. The main body 61 extends outward from the flanges 3b, 4b of the vehicle body panels 3, 4 along the inclined walls 3a, 4a to the outside of the vehicle (upper side in the drawing). Are fixed to the inclined walls 3a and 4a by double-sided tape 9. At a substantially central portion of the main body 61, a thin metal core 63 is buried, and at the outer end (upper end in the figure) of the main body 61, an elastic member is provided on the outer surface of the body panels 3, 4. A lip-shaped decorative portion 64 that is in contact is provided.

The main body 61 has basically the same cross-sectional shape throughout the entire circumference, but has a different cross-sectional shape from the corner portion to the upper portion. That is, the main body 61 extending from the corner fastener 6C to the upper fastener 6U is provided with the inclined walls 3a, 4 corresponding to the inner peripheral edges of the body panels 3, 4 described above.
a gradually inclines to the outer peripheral side and between the window glass 1
With the the gap expanding, above the main body portion 61
An outer peripheral side wall surface facing the inclined walls 3a, 4a is bulged so as to fall down to the outer peripheral side, and bulges toward the outer peripheral side, so that the outer peripheral side wall surface and the inner peripheral side wall surface of the main body 61 are formed. Thickening is being done. The thick portion that bulges to the outer peripheral side of the main body 61 has a substantially fan-shaped cross-sectional shape,
The upper fastener 6U is formed into a uniform cross-sectional shape over the entire length.

Further, a roof panel 3 is provided on a bulging thick portion provided in the main body 61 of the upper fastener 6U.
Toimizo 10 for blocking rain water flowing down from, it is recessed by digging so as to open the vehicle exterior side. The gutter groove 10 has a fan-like shape similar to the cross-sectional shape of the bulging thick portion, and is set to have a size proportional to the thickness of the bulging thick portion. That is, the gutter 10
Are provided in a uniform cross-sectional shape over the entire length of the upper fastener 6U, are gradually reduced in the corner fastener 6C, and disappear in the middle.

On the other hand, the locking portion 62 of the fastener 6 has a substantially constant cross-sectional shape over the entire length thereof, and is a protruding piece 62a erected in parallel with the inner peripheral side wall surface of the main body 61 slightly apart from the inner peripheral side wall surface. It has. A locking groove having a substantially U-shaped cross section is defined between the projecting piece 62a and the inner peripheral side wall surface of the main body 61 so as to open to the outside of the vehicle.
The leg 21 of the wind molding 2 is inserted and fitted from the outside of the vehicle. At this time, an upper end portion of the protruding piece 62a is provided with a two-step arrowhead portion, and a lower arrow portion of the leg portion 21 of the wind molding 2 is also provided with a similar arrowhead portion. The leg 21 of the wind molding 2 is configured to be clamped by the locking portion 62 of the fastener 6 by fitting the arrow-shaped portion.

The window molding 2 is formed in a substantially uniform cross-sectional shape over the entire length.
A decorative portion 22 made of a lip-shaped member extending toward the window glass 1 is provided at the outer end of the vehicle. The inner peripheral edge portion of the decorative portion 22 is in elastic contact with the outer surface of the window glass 1.

In such a structure for mounting the window glass 1 on the vehicle body side, the rain water dropped on the roof panel 3 is blocked by the gutter groove 10 of the fastener 6 when it is going to flow out to the surface of the window glass 1. It is discharged to a predetermined part through the inside of the groove 10.

Next, an apparatus for forming the above-mentioned fastener 6 will be described. The thin metal foil core 63 unwound from a coiler (not shown) is supplied to an extrusion die apparatus through a forming roll and a detection roll, and is extruded integrally with the resin into the above-described cross-sectional shape. The extruded molding material is sent to a cutting device by a take-off machine through a cooling tank, where the material is cut to a predetermined length.

As shown in FIGS. 6, 7 and 8, the molding die provided in the extrusion die apparatus has three molding ports for forming an extrusion opening for extruding a synthetic resin. It has a die. These dies have a first die 111, a second die 112, and a third die 113 arranged side by side in a fastener extrusion direction (a direction perpendicular to the paper surface). Among them, the first die 111 is fixedly installed, and has a partition side 111a corresponding to the entire outer shape of the fastener 6. Then, a portion corresponding to the main body 61 of the extrusion forming port defined by the partition side 111a is formed in a maximum opening shape corresponding to the above-described bulging thick portion, as particularly shown in FIG. ing.

The second die 112 and the third die 11
3 are each formed from a plate-shaped member, and
Of the first die 111 so that a part of the extrusion forming opening defined by the partition side 111a of the die 111 can be shielded.
It is movably supported on the front of the camera. First, the second die 112 is formed in a sector shape, and one side corresponding to the radius of the sector is formed on a partition side 112 a having a shape corresponding to the outer peripheral side wall of the main body 61 of the fastener 6. . The center portion of the second die 112 is
While being rotatably supported by 2b, the arc-shaped outer peripheral edge is rotatably supported by a guide 112c. By rotating the second die 112 about the fulcrum pin 112b, the partition side 112 corresponding to the outer peripheral side wall of the main body 61 of the fastener 6 is formed.
a and the partitioning side 111a of the first die 111 corresponding to the inner peripheral side wall of the main body 61 are separated and approached from each other, so that the opening area of the extrusion opening corresponding to the main body 61 is reduced. It is configured to be changed.

The third die 113 is formed in an elongated shape which is supported by a pair of guides 113a and 113a so as to be movable in the vertical direction in the figure. A substantially triangular projecting partition 113b corresponding to the gutter groove 10 of the fastener 6 is formed. The projecting partition 1 of the third die 113
13b is a partition side 111a of the first die 111,
The second die 112 is provided so as to be able to enter an extrusion forming opening corresponding to the main body 61 defined by the partition side 112a. A connecting rod 113c is continuously provided at the upper rear end of the third die 113 in the drawing.
13c is connected to the drive motor via a converter (not shown) for converting the rotary motion into a linear motion. The third die 113 is driven by the driving force from the driving motor.
7 is a side fastener forming position shown in FIG. 6 and FIG.
The second die 11 is located between the corner fastener forming position shown in FIG.
It is configured to be reciprocated in parallel in conjunction with the two reciprocating rotations.

An embodiment of a method for forming the fastener 6 by such a fastener forming apparatus will be described. In forming the fastener 6, extrusion is started from a central portion of the lower fastener 6L, and then a corner fastener 6C, one side fastener 6S, an upper corner fastener 6C, an upper fastener 6U, another corner fastener 6C, a side fastener. 6S, the lower corner fastener 6C, and the lower fastener 6L are sequentially extruded, and the first and last lower fasteners 6L are bonded to each other at approximately the center by heat welding or the like.

When extruding the side fastener 6S, the second die 112 and the third die 113 are positioned with respect to the first die 111 as shown in FIG. That is, the partition side 111a of the first die 111 and the second die 1
The extrusion forming port corresponding to the main body portion 61 defined by the twelve partition sides 112a is set in a narrow and thin opening shape, and a band-shaped thin metal foil core bar 63 is provided in the thin extrusion forming port. Supplied. Then, the side fastener 6S having the cross-sectional shape shown in FIGS. 4 and 5 is extruded.
At this time, the main body 61 is obtained in a thin state, and the gutter groove 10 is not formed.

Side fastener 6S having a constant cross-sectional shape
After the predetermined length is extruded, the process shifts to the molding of the corner fastener 6C.
As shown in (2), it starts to turn downward in the direction of the arrow.
Thereby, the partition side 111a of the first die 111 and the second
The extrusion forming port corresponding to the main body 61 defined by the partition side 112a of the die 112 is gradually opened, and the thickness of the main body 61 is gradually increased accordingly. Therefore, as shown in FIGS. 3 and 5,
The bulging thick portion of the main body 61 is formed. At this time, in proportion to the thickness of the main body 61 being increased, the third
The projecting partition piece 113b of the die 113 is advanced in the downward direction in the figure as shown by the arrow in the figure.

Then, the projecting partition 11 of the third die 113
The main body 6 is defined by a partition side 111a of the first die 111 and a partition side 112a of the second die 112.
When the shielding is started by entering into the extrusion forming port corresponding to No. 1, the gutter groove 10
Begins to be formed. When the extrusion of the corner fastener 6C is completed, the opening degree of the second die 112 is maximized as shown in FIG. 8, and the molding of the upper fastener 6U having the maximum thickness is started from here. Also, at this time, the projecting partition 113b of the third die 113 is in the maximum entry state with respect to the extrusion forming port, whereby the gutter groove 10 having the maximum cross-sectional area is shown in FIG. 2 and FIG. As shown, it is formed on the main body 61 of the upper fastener 6U. After that, upper fastener 6
U is extruded over a predetermined length in a constant cross-sectional shape.

When the upper fastener 6U is extruded by a predetermined length, the corner fastener 6C and the side fastener 6S are formed in a manner opposite to the above-described procedure, and then the lower fastener 6L is formed into a fixed cross-sectional shape. Extruded, resulting in a series of fasteners 6. If the protruding partition piece 113b of the third die 113 is formed in a sharp shape, it is possible to form a gutter groove even at a relatively thin corner portion.

As described above, in this embodiment, the die 11
By expanding the opening area of the extrusion opening defined by each of the partitioning pieces 1 and 112, a thickened portion is formed in the upper fastener 6U of the fastener 6 and the partitions of the dies 111 and 112 are formed. The third die 113 is inserted into the extended area of the extrusion opening defined by the piece to perform shielding, whereby the gutter groove 10 is recessed in the bulged thick portion. As a result, the fastener 6 provided with the gutter groove 10 having a suitable damping function is formed in a series by extrusion alone without adding a step such as cutting.

The fastener 60 according to the second embodiment shown in FIGS. 9 to 11 has substantially the same configuration as the fastener 6 according to the first embodiment. In the main body 601 of the fastener 60 in this embodiment, a gutter groove 70 similar to that of the first embodiment is recessed while changing the cross-sectional shape, and the cross-sectional shape is constant over the entire length of the fastener 60. The locking portion 602 is formed with a three-step arrowhead portion formed on the inner peripheral side wall surface of the main body portion 601. The leg portion of the wind molding 80 is locked by fitting the arrow-shaped portion of the elastic lip 801 provided on the outer peripheral side of the leg end of the wind molding 80 into the locking portion 602 of the fastener 60. It is configured to: On the inner peripheral side of the leg end of the window molding 80, a support piece 802 fitted to the peripheral edge of the window glass 1 is provided. In the second embodiment, the same operation and effect as those of the above-described embodiment can be obtained.

[0029]

The automobile according to the present invention as described above
Fasteners have a gutter groove portion and a gutter grooveless portion.
Is continuously integrated by increasing or decreasing the thickness of the bulging thick part
And good design properties, and the bulging thick part
By forming gutter grooves in each area, the cross-sectional area can be reduced.
For fasteners, provide a sufficient size and suitable damming function
Whether a high-performance gutter groove is provided
The part with the gutter groove of the fastener and the part without the gutter groove
Improve both design and functionality at the connection site
It has a remarkable effect that it can be performed. In addition,
The method for manufacturing an automobile fastener according to the present invention is to expand / shrink the opening area of an extrusion opening defined by each partition piece of a plurality of dies, and to bulge out a part of the fastener by expanding the extrusion opening. Since the part is molded and another die is inserted into the extended area of the extrusion molding port to perform shielding, a gutter groove is formed in the bulging thick part. , it is possible to mold the fastener having a Toimizo with suitable blocking function into a series, it is possible to improve the productivity.

[Brief description of the drawings]

FIG. 1 is an explanatory perspective view of a rear appearance of a vehicle, showing a state in which a window molding is mounted on a vehicle body panel by a fastener according to an embodiment of the present invention.

FIG. 2 is a transverse sectional view taken along the line II-II in FIG.

FIG. 3 is a transverse sectional view taken along the line III-III in FIG.

FIG. 4 is a transverse sectional view taken along line IV-IV in FIG.

5 is an external perspective explanatory view showing a state immediately after extrusion-molding the fastener shown in FIGS. 2 to 4. FIG.

FIG. 6 is an explanatory front view showing an example of a die for extruding the fastener shown in FIGS. 1 to 5;

FIG. 7 is a front view showing a moving state of the extrusion molding die shown in FIG. 6;

FIG. 8 is a front view showing a further moving state of the extrusion molding die shown in FIG. 6;

FIG. 9 is a cross-sectional view of a fastener according to a second embodiment of the present invention, corresponding to FIG.

FIG. 10 is a cross-sectional view of the fastener shown in FIG. 9 corresponding to FIG. 3;

11 is a cross-sectional view of the fastener shown in FIG. 9 corresponding to FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rear window glass 2 Rear window molding 3,4,5 Body panel 6,60 Fastener 6U, 60U Upper fastener 6S, 60S Side fastener 6C, 60C Corner fastener 61,601 Body 62,602 Locking part 10,70 Gutter groove 111 First die 112 Second die 113 Third die 111a, 112a Extruded partition side

Claims (2)

(57) [Claims] 1. A window molding (2) mounted along a peripheral portion of a window glass (1) fixed to a window frame opening of a vehicle body panel (3, 4), wherein the window molding (2) is locked. It is inserted into the gap formed between the peripheral edge of the window glass (1) and the inner peripheral edge of the window frame opening of the vehicle body panel (3, 4) and is fixed to the vehicle body panel (3, 4). A vehicle fastener (6) including a main body (61) to be formed and a locking portion (62) provided on the main body (61) so as to lock a part of the wind molding (2). ), The locking portion (62) has a constant cross-sectional shape over the entire length, and the main body portion (61) is formed of a series of integrated elongate members having different cross-sectional shapes in a part of the longitudinal direction. And in the main body (61) Cross section portion of the profile has a <br/> peripheral side wall surface facing the inner peripheral edge portion of the window frame opening of the vehicle body panel (3, 4), the inner peripheral side wall of the window glass (1) side
Comprising a bulging thick part to thickening between the face and the bulging thick part of the body portion (61), block the rainwater flowing down from the vehicle body panel (3, 4) side Gutter to stop (1
A fastener for an automobile, wherein 0) is recessed so as to open to the outside of the vehicle . Wherein the locking portion of the windshield molding (2) for locking the (62), <br/> body portion fixed to a vehicle body panel (3, 4) a fastener (6) which is provided in (61) , The side (11) of the die (111, 112, 113) of the extrusion molding apparatus.
1a, 112a, 113b), wherein the fastener (6) is extruded through an extrusion opening defined by a main body (61) and a locking part (6) of the fastener (6).
Extrusion ports corresponding to the cross-sectional shape of 2) are inserted into each of the partition sides (111a, 1
12a, 113b), while extruding the entire length of the fastener (6) integrally and integrally, and each partition side (111) of the plurality of dies (111, 112).
a, 112a) by extruding while maintaining the extrusion opening defined by the portion corresponding to the locking portion (62) in a constant outer shape, thereby fastening the locking portion (62) with a fastener. (6) Extrusion molding is performed with a constant cross-sectional shape over the entire length, and each partition side (111) of the plurality of dies (111, 112) is extruded.
a, 112a), the part corresponding to one side wall of the main body (61) is separated from or close to the part corresponding to the other side wall, so that the extrusion molding port corresponding to the main body (61) is expanded or reduced. Extrusion molding is performed while the main body (6
In a part in the longitudinal direction of 1), a bulged thick portion having a different cross-sectional shape is formed, and an extruded mouth defined to form a bulged thick portion of the main body (61) is formed. Extrusion is performed while a part of the partition (113b) of the other die (113) is made to enter by blocking the part of the main body (61). 10) outside the car
Method of manufacturing a fastener (6), characterized in that the recessed so as to open to the side.