JP3063288B2 - Method of forming window panel members - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of forming a wind panel member for an automobile or a building, and more particularly to a method of forming a wind panel member formed in advance around a wind panel.

[0002]

2. Description of the Related Art As this kind of technology, for example, FIGS. 5 and 6 (Japanese Patent Application Laid-Open No. 62-68992 or Japanese Patent Application Laid-Open
No. 3219), the wind panel 1
Are disposed in the upper mold 2 and the lower mold 3 which are the molds, and the gasket forming cavity 5 is formed between the wind panel 1 and the inner surfaces of the upper mold 2 and the lower mold 3 which are the molds. From a resin injection port 4 formed in a part of the mold 3, a synthetic resin material such as polyurethane foam or the like which can be injected at a low pressure or a raw material of the material is injected into the gasket forming cavity 5 and solidified to form the gasket 6. Forming the wind panel 1
And the gasket 6 are integrally formed in advance.

[0003]

However, in this method of forming a window panel member, the inner surface of the wind panel 1 and the inner surfaces of the upper die 2 and the lower die 3 which are the forming dies are varied due to the unevenness of the surface of the wind panel 1. There is a possibility that a gap may be formed between the resin material and the synthetic resin material such as polyurethane foam or the like injected into the gasket forming cavity 5 from the resin injection port 4 into the gasket forming cavity 5 or a raw material of the material. And so-called burrs 6 a may be formed around the gasket 6. In addition, if the tightening force of the upper mold 2 and the lower mold 3 as molding dies is increased in order to eliminate the gap, the wind panel 1 itself may be damaged.

The present invention has been made in view of the above points, and an object of the present invention is to provide a method for manufacturing a window panel and a mold without increasing the tightening force of an upper mold and a lower mold. So that there is no gap between the inner surface of
It is an object of the present invention to prevent burrs from being generated in a gasket and to reduce damage to a wind panel itself.

[0005]

According to a method of forming a window panel member of the present invention, a wind panel is disposed in a mold, and a gasket forming cavity is formed between the window panel and an inner surface of the mold. A clip is provided in the forming cavity, which is located at a position separated from the window panel and the mold, and has an inner surface forming a space between the window panel and the mold, and the air in the space is depressurized. The material of the gasket or the raw material of the material is injected to form a gasket, and then the window panel to which the gasket is fixed is taken out of a molding die. An opening for deaeration is formed in the surface of the clip on the inner surface side, and deaeration means formed in the mold is connected to the opening.

[0006]

According to this method, even if a gap is formed between the molding die and the surface of the window panel, the injected gasket material or the raw material of the material pushes the clip itself inward, resulting in an excessively large amount of material. Since the injection pressure is buffered and the space inside the clip is reduced in pressure, the generation of burrs does not extend to the gaps. As a result, the mold clamping pressure, which was conventionally performed to prevent burrs, is kept low. Therefore, breakage of the wind panel due to the mold clamping pressure can be prevented.

[0007]

FIG. 1 is a sectional view of a molding die according to an embodiment of the present invention, FIG. 2 is a plan view of a window panel and a clip not showing the molding die of FIG. 1, and FIG. FIG. 4 is a perspective view of only the joint clip of FIG. The same members as those shown in FIGS. 5 and 6 are denoted by the same reference numerals, and redundant description will be omitted.

In the drawing, reference numeral 7 denotes a clip according to the present invention, which is made of an elastic material, and is located in the forming cavity 5 and substantially with respect to the wind panel 1 and the inner surfaces of the upper mold 2 and the lower mold 10 which are molding dies. A space 11 is formed between the window panel 1 and a predetermined distance apart, and is similar in shape and the inner surface 7a thereof. After arranging the clip 7, the air in the space 11 is depressurized by the deaeration means 12 described later.

The clip 7 has one end 7b abutting on the front side 1a of the window panel 1, the other end 7c abutting on the inner side 1b of the window panel 1, and the other end 7c side, ie, the window. An opening 13 for deaeration is formed in the surface 7d of the clip 7 on the inner side 1b when the panel 1 is attached, and the deaeration means 12 formed in the upper mold 2 and the lower mold 10 as molding dies is inserted into the opening 13. To communicate.

The deaeration means 12 includes a suction cup 15 which is in contact with the outer periphery of the opening 13 so as to cover the outer periphery of the opening 13, and a space 11 formed by the opening 13.
A passage 18 formed in the lower mold 10 so as to provide a retreat of the air inside, and a rod 16 in the passage 18 which supports the suction cup 15 from below and is movable up and down.
And a spring 17 for constantly urging the rod 16 upward to bring the suction cup 15 into close contact with the surface 7d of the clip 7, and operating means 19 capable of operating the rod 16 downward. By closing the lower mold 10 and the lower mold 10, the air pressure in the space 11 is stabilized. By operating the operating means 19, the position of the suction cup 15 is lowered via the rod 16 and the opening 13 is opened. The air is drawn out by the differential pressure, and the inside of the space 11 is slightly reduced in pressure.

Therefore, first, a surface treatment such as applying a primer to the wind panel 1 is performed. Next, the surfaces of the joint clip 20 and the clip 7 are subjected to a surface treatment, and
The joint clip 20 and the clip 7 are set according to. At this time, the end 2 of the joint clip 20
0a is stepped down, so the inner surface 7a of the clip 7
However, it rides on the end 20a, and the surface becomes a smooth surface.
Next, the wind panel 1 is set and the upper mold 2 is closed.
After the mold is closed, the air in the space 11 of the clip 7 is deaerated by the deaeration means 12. Next, the material of the gasket 6 or the raw material of the material, for example, polyurethane foam or the like, is placed in the lower mold 1.
A gasket 6 is formed by injecting the resin through the resin injection port 4 formed at 0 and curing the resin. Next, the wind panel 1 to which the gasket 6 is fixed is attached to the upper mold 2 and the lower mold 10 which are molds.
Take out from.

According to this method, even if the gap is formed between the upper die 2 and the lower die 10 which are the forming dies and the surface 1a and / or the inner surface 1b of the wind panel 1, the material of the gasket 6 injected thereinto. Alternatively, the raw material of the material pushes the clip 7 itself as an elastic body inward, that is, in a direction to narrow the space 11, so that the injection pressure is buffered and the molding is performed by the action of the negative pressure formed in the clip 7. Prevent the urethane home on the way from protruding outside, that is, toward the gap,
As a result, no burrs are generated, and the pressure of the molding die is reduced, so that the wind panel 1 due to the molding pressure is reduced.
Can be prevented from being damaged.

[0013]

As described above, as a method for forming a window panel member of the present invention, a wind panel is disposed in a mold and a gasket forming cavity is formed between the window panel and the inner surface of the mold. A clip is provided in the forming cavity, which is located at a position separated from the window panel and the mold, and has an inner surface forming a space between the window panel and the mold, and the air in the space is depressurized. The material of the gasket or the raw material of the material is injected to form a gasket, and then the window panel to which the gasket is fixed is taken out of a molding die. An opening for deaeration is formed in the surface of the clip on the inner surface side, and a deaeration means formed in the mold is connected to the opening. Even if a gap is formed between the mold and the surface of the wind panel, the injected gasket material or the raw material of the material pushes the clip itself inward to adjust the injection pressure and Since the injected material does not reach the outside, that is, the gap, no burrs are generated as a result, and the pressure of the mold clamping is reduced, so that the damage of the wind panel due to the mold clamping pressure can be prevented. Without increasing the tightening force of the upper and lower molds, no gap is formed between the wind panel and the inner surface of the mold, it is possible to prevent burrs from being generated on the gasket, This can reduce the damage to the panel itself.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a mold according to one embodiment of the present invention.

FIG. 2 is a plan view of a window panel and a clip that do not show the mold of FIG. 1;

FIG. 3 is a cross-sectional view of the periphery of a wind panel after molding.

FIG. 4 is a perspective view of only the joint clip of FIG. 2;

FIG. 5 is a cross-sectional view of a conventional mold for forming a window panel member.

FIG. 6 is a cross-sectional view of the window panel member of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Window panel 2 Mold 10 Mold 5 Gasket formation cavity 6 Gasket 7 Clip 11 Space 12 Deaeration means 13 Opening for deaeration

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) B29C 45/14 B29C 39/10 B60J 1/00-1/02 E06B 3/54

Claims (2)

(57) [Claims] 1. A window panel is arranged in a mold to form a gasket forming cavity between the window panel and an inner surface of the mold. A clip which is located at a separated position and has an inner surface forming a space between the wind panel and the window panel is arranged, and the air in the space is depressurized,
A method of forming a window panel member, comprising: forming a gasket by injecting a material of a gasket or a raw material of the material, and removing a window panel to which the gasket is fixed from a mold. 2. The wind panel according to claim 1, wherein an opening for deaeration is formed in the surface of the clip on the inner surface side when the wind panel is attached, and deaeration means formed in the mold is connected to the opening. The method of forming the member.