JP2925569B2 - Manufacturing method of window glass with frame - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a method for producing a purely fitted window glass suitable for an automotive window glass or an architectural window glass, and particularly to a bent window glass. The present invention relates to a production method suitable for:

[Prior Art] A frame such as a rubber or synthetic resin gasket or a molding is usually attached to a periphery of a window glass for a vehicle such as an automobile or a window glass for construction for the purpose of decoration or sealing. ing. For example, as shown in FIG. 1 (g) and FIG. 3, the frame 2 or 32 is attached to the periphery of the window glass 1 or 31.

Conventionally, to attach the frame to the window glass, a method of bonding or fitting a frame formed by extrusion or the like to the periphery of the window glass has been usually adopted. However, in this method, since the frame formed in a straight line is attached while being bent in accordance with the peripheral shape of the window glass, wrinkles are formed at corners, and it becomes difficult to attach the window glass when the window glass has a complicated shape. There was a problem.

To solve this problem, a window glass is placed in a mold, and a gasket material such as a melt of rubber or elastomer or a raw material mixture capable of forming rubber or elastomer is injected into the mold, and the window is opened in the mold. Integral molding methods have been proposed in which a gasket is formed around the glass and it is removed from the mold (for example, Japanese Patent Application Laid-Open Nos. 57-158481 and 58-73681,
58-110786, 60-4015, 60-104412, 60-63115,
61-79613, 61-66645, etc.).

In this method, as shown in FIG.
The window glass 41 is sandwiched by 44, and a cavity space 46 is formed in the peripheral portion of the window glass 41.
Next, the frame material is injected from the gate 47. When the frame material is solidified in the cavity space 46, the frame 42
Are formed integrally with the glass 41.

However, in the above method, the window glass 41 is formed in a molding die.
When it is arranged in the hole 45, it is necessary to strongly pinch it between the core 43 and the cavity 44, but there is a problem that the window glass 41 is easily damaged by the tightening force. This problem was particularly remarkable when the window glass 41 was bent. That is, it is generally difficult to increase the processing accuracy in bending window glass, and individual variations occur. For this reason, when the window glass is arranged in the mold and fastened by the core and the cavity, stress is applied to the window glass, which results in breakage. In recent years, window glass bent at a large bending angle or extremely complicated shape has been used as a window glass for automobiles. Such a window glass is particularly susceptible to breakage. Has a large economic loss, making it difficult to apply the above method. Moreover, in such a window glass, the shape of the gasket and the window glass are largely different from each other by a conventional method of mounting a preformed gasket, and it is extremely difficult to fit the two together exactly.

On the other hand, the present inventors have conceived a novel manufacturing method of a window glass with a gasket which has solved the above-mentioned problem by molding a pure body using a dummy body of a window glass to which a pure body is to be attached, and has already considered. Filed as Japanese Patent Application No. 62-250633.

This method uses a dummy body in which at least the periphery of the window glass provided with the gasket has the same shape, arranges the dummy body in a mold, injects the gasket material into the periphery of the dummy body, and the gasket material is solidified. Thereafter, the dummy body and the molded gasket are taken out of the mold, the gasket is further removed from the dummy body, and the gasket is attached to the periphery of the window glass. This is an excellent method of easily manufacturing a gasket that fits exactly into the shape of a window glass to which a gasket is to be attached without damaging expensive window glass by use.

[Problems to be Solved by the Invention] The present invention relates to a further improvement of the method proposed in the above-mentioned Japanese Patent Application No. 62-250633 (hereinafter, referred to as a "dummy method"). An object of the present invention is to provide a method for manufacturing a window glass with a frame that fits easily into a window glass having a desired shape and that can be easily and reliably mounted on an automobile, a building, or the like.

Means for Solving the Problems According to the present invention, a dummy body having at least the same peripheral edge as the window glass on which the frame is provided is arranged in a mold, and a frame material is injected into the dummy peripheral edge. In the method of manufacturing a framed window glass in which a frame having a shape conforming to the periphery of the window glass is formed by solidifying the frame and attaching the frame to the periphery of the window glass, a window is formed on at least a part of the frame. A space and / or recess for fixing fixture for mounting the glass to the structure is provided, and the formed frame is fixed to the space and / or recess before or after the window frame is mounted. The present invention relates to a method for manufacturing a window glass with a frame, characterized in that a tool is arranged via an adhesive and bonded and integrated with the frame and / or the window glass.

In the present invention, in manufacturing a window glass with a frame by the dummy method, a cavity and / or a recess for attaching a fixture for fixing to a subsequent structure are formed in the obtained frame, This is a method of molding a synthetic resin into a mold (cavity).

FIG. 2 (a) is a partial cross-sectional view of a specific example of a window glass with a frame obtained by the present invention, wherein 1 is glass, 2 is a molding,
9 is an empty space provided in the mall 2 and stud bolts 11 are empty spaces 9
Are bonded to the glass 1 and the molding 2 with an adhesive 12.

FIG. 2 (b) shows another example of the window glass with a frame according to the present invention, in which a stud bolt 11 is bonded and integrated in a recess 10 provided in the molding 2.

[Operation] In the present invention, as described above, the dummy body having at least the peripheral portion having the same shape as the window glass is used. Therefore, the window glass is not damaged at all by the clamping force in the mold, and the dummy body is not damaged. The gasket, which is shaped to fit, fits snugly around its periphery when attached to a window. Therefore, even if the window glass is bent, it is possible to prevent the breakage of the bending, and to provide a frame such as a gasket by fitting the peripheral edge exactly, and to provide the frame in advance. By attaching stud bolts etc. to the vacant space or recess for placing the fixture by gluing etc., the mounting position of the fixture is easy,
It is possible to provide a window glass with a frame that has high dimensional accuracy of the product and that can be easily and reliably mounted on an automobile or a building.
Hereinafter, the present invention will be specifically described with reference to the drawings.

Example As shown in FIG. 1 (a), in the present invention, a window glass 1
And a dummy body 8 having at least a peripheral portion of the same shape is used. The dummy body 8 is made of a material that can be easily formed and withstand repeated use, for example, a metal such as aluminum and stainless steel. Its shape requires that the peripheral portion where the gasket 2 is to be provided be the same as that of the window glass 1, but the other portions may have any shape as long as they can be arranged in the mold 5. . In this embodiment, for the purpose of weight reduction, a central portion is formed in a plate shape. When the material of the dummy body 8 has a high adhesiveness to the gasket 2, it is preferable to apply a mold release agent to at least the surface of the dummy body 8 which is in contact with the gasket. Of course, a release agent is also applied to the inner surface of the mold 5 as needed.

The dummy body 8 is arranged between the core 3 of the molding die 5 and the cavity 4, and is tightened by the core 3 and the cavity 4 as shown in FIG. As a result, a cavity space 6 is formed at the periphery of the dummy body 8. Then, the gasket material is injected into the cavity space 6 through the gate 7 and solidified to form the gasket 2. The feature of the present invention is that the cavity space 6 formed at this time is formed.
, That is, the shape of the target gasket 2 is an empty space for attaching the fixing member such as a stud bolt to the gasket portion or the glass for attaching the window glass with the frame to the structure. It has a place 10 and / or a recess 11.

This gasket 2 is made of synthetic resin or rubber,
In particular, it is preferable to use an elastomer or a soft synthetic resin. As the gasket material to be injected into the molding die 5, a melt of a synthetic resin or a liquid synthetic resin raw material mixture which reacts in the molding die to become a synthetic resin is used. As the former,
Examples include, but are not limited to, melted soft vinyl chloride-based resins, thermoplastic polyester-based elastomers, styrene-diene-based thermoplastic elastomers, and ethylene-unsaturated carboxylic acid-based copolymers. Examples of the synthetic resin obtained from the latter raw material mixture include, for example, polyurethane-based elastomers, polyurethane-urea-based elastomers, polyurea-based elastomers, polyamide-based resins, epoxy resins, and unsaturated polyester-based resins, but are not limited thereto. Not something. As a molding method, it is preferable to use a reaction injection molding (RIM molding) method in the latter case as well as ordinary injection molding.

After the gasket 2 is formed on the peripheral portion of the dummy body 8 in this manner, as shown in FIG.
And the cavity 4 is opened to open the dummy body 8 and the gasket 2
Take out. In this state, the gasket 2 is in close contact with the peripheral portion of the dummy body 8 as shown in FIG.

Then, the gasket 2 is removed from the dummy body 8 as shown in FIG. The gasket 2 may be removed by using the elastic force of the gasket 2 while the gasket 2 remains annular, or a desired portion of the gasket 2 may be cut and removed. However, when attaching the gasket 2 to the window glass 1 later, in order to prevent the seam of the gasket 2 from becoming large and spoiling the appearance, the gasket 2 should be removed in a ring shape or cut at one or two places. Is preferred. In order to facilitate removal of the gasket 2, the dummy body 8 may be divided or bent.

After removing the gasket 2 in this manner, FIG.
As shown in (1), the gasket 2 is fitted to the periphery of the window glass 1 and attached. In this case, an adhesive may be applied to the contact surface between the window glass 1 and the gasket 2 or to the joint when the gasket 2 is cut and removed. Since the gasket 2 is formed in conformity with the peripheral shape of the dummy body 8, the gasket 2 fits exactly to the peripheral edge of the window glass 1, and can be easily mounted and have a good appearance [FIG. )]. The framed window glass of the present invention obtained as described above has an advantage that the dimensional accuracy of the fixture installation position is high due to the presence of a cavity or a recess. Also, the cavity space shape is simpler and displacement is less likely to occur than in a case where the fixture is arranged in a molding die and molded together with a pure body.

Next, in the fixture space 10 and the recess 11 of the gasket 2,
The fixing device is fitted and bonded to be integrated with the gasket and / or the glass to obtain a window glass with a frame in which the fixing device is integrated as shown in FIG. 2 (a) or (b). . As the adhesive, a known adhesive generally used for bonding resin or glass to metal can be used.
The framed window glass of the present invention thus obtained is integrated with the fixture, so that it is attached to the structure,
Very simple, reliable and easy.

Various glasses can be used as the window glass 1 to which the present invention is applied. For example, even if it is a single piece of glass, a laminated glass having an interlayer, for example, a laminated glass in which two pieces of glass are bonded with an interlayer such as polyvinyl butyral, a polyurethane resin, polyester It may be a double-layered glass in which two glass layers of a resin or the like are laminated at intervals and the periphery thereof is sealed and dry air or nitrogen gas is sealed in the gap. Also, these glasses are
It may be one reinforced by heat treatment or chemical treatment, or one reinforced by air cooling. Further, it may be a simple flat glass or a processed flat glass, and examples of the processed flat glass include front, side, rear, door and sunroof glass for automobiles, flat glass for architecture, and other uses. It may be a sheet glass used for the above. In addition, the present invention can form a frame that is in close contact with the surface of a sheet glass having surface irregularities such as a template sheet glass.

Further, as the window glass to which the present invention is applied, the surface of the glass may have been subjected to various treatments. For example, it may be plated with heat ray reflective glass or ceramic coated. Alternatively, glass that has been subjected to a preferable treatment for forming a frame may be used. For example, a glass coated with a primer to improve the adhesive strength with the frame at the periphery of the glass where the frame is formed, and conversely, a protective paint that can be peeled off after forming the frame on the non-frame forming surface. Glass to which a film that can be applied or peeled off is in close contact, glass that has a non-frame-forming surface in contact with the frame-forming surface coated with a sealable elastic paint, or has a sealable elastic material bonded to it And so on.

INDUSTRIAL APPLICABILITY The present invention is applicable to various types of window glass having a frame such as an automobile, a building, and other structures.

[Effects of the Invention] As described above, according to the present invention, a gasket having a cavity for mounting fixtures and / or a recess by injection molding or rim molding by arranging a dummy body in a molding die. , A frame such as a mall is formed, and this frame is detached from the dummy body and attached to the window glass, so that the window glass is prevented from being damaged, and the frame is fitted to the edge shape of the window glass exactly. Can be attached. Moreover, even if molding failure of the frame body occurs, it is possible to prevent waste of expensive window glass. Then, since the fixing tool is fitted into the space and / or the concave portion and integrated with the frame or the glass by bonding, the frame is formed with the fixing tool attached from the beginning, and the fixing tool is also integrated. There is an advantage that the step of forming the cavity space and the like can be performed easily and accurately as compared with the case of manufacturing a window glass with a body. Also,
The framed window glass obtained by the present invention can be very easily, quickly, and accurately attached to a structure such as an automobile or a building by using the fixing device.

[Brief description of the drawings]

FIG. 1 is a schematic diagram illustrating the method of the present invention according to steps.
FIGS. 2 (a) and 2 (b) are partial cross-sectional views of a window glass with a frame obtained by an embodiment of the method of the present invention, and FIG. FIG. 2B shows an example in which a fixing tool is bonded to the recess of the frame body. FIG. 3 is a sectional view of a conventional windowpane with a frame, and FIG. 4 is an explanatory view of a conventional manufacturing method. 1: glass, 2: molding, 3: core, 4: cavity, 5: molding die, 6: cavity space, 7: gate, 8: dummy body, 10: empty space, 11: recess,

Claims (1)

(57) [Claims] A dummy body having at least the same peripheral edge as the window glass on which the frame is provided is arranged in a mold, and a frame material is injected into the peripheral edge of the dummy body to be solidified. Forming a frame having a shape corresponding to the periphery of the windowpane, and attaching the same to the periphery of the windowpane in a method of manufacturing a windowpane with a frame, for attaching the windowpane to at least a part of the frame to the structure. Space for fixing fixtures and / or
Alternatively, a recess is provided, and before or after the molded frame is attached to the window glass, a fixing tool is arranged in the cavity and / or the recess via an adhesive to remove the frame and / or A method for producing a window glass with a frame, wherein the window glass is bonded to and integrated with the window glass.