JP6515619B2 - Method of manufacturing window glass with frame - Google Patents

Description

The present invention relates to a framed window glass including a reinforcing member, a mold for the framed window glass, and a method for manufacturing the framed window glass.

Conventionally, in a window glass with a frame attached in the vicinity of a front pillar, inserting a reinforcing plate into the frame is performed (for example, Patent Document 1). However, when the frame is injection-molded, the reinforcing plate may move due to heat and flow of the injected resin.

JP-A-2-175419

An object of the present invention is to provide a method of manufacturing a window glazing with a frame which can suppress the movement of the reinforcing member when the frame is injection-molded.

Method for manufacturing a frame with a window glass of the present invention comprises at least the side reinforcing member made of hard resin of the frame body, the frame body that is formed by injection molding of the peripheral soft resin of the glass sheet It is a manufacturing method of window glass with a frame,
The reinforcing member is provided along the end of the glass plate, and between the glass plate and the reinforcing member, there is provided a gap through which a resin for forming the frame can flow during injection molding. Step A of placing in a mold
Closing the mold and forming a void of the frame in the mold;
Inserting a projection for maintaining the arrangement position of the reinforcing member in at least one place of the reinforcing member ;
Step D of injecting resin for forming the frame body to said air gap,
A step E of removing the protrusion from the reinforcing member ,
For retrieving the frame body, the step opening the mold F,
And the like.

By providing the steps C 1 and E, the movement of the reinforcing member can be easily suppressed.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method of the window glass with a frame which can suppress that a reinforcement member moves when inject-molding a frame can be provided, and it is effective in the improvement of the production efficiency of a window glass with a frame.

It is the figure which showed typically the principal part of the window glass with a flame | frame which becomes a manufacturing object by the method of this invention. It is the figure which showed typically the principal part of the cross section of an example of a frame body window glass. It is the figure which showed typically the principal part of the cross section of an example of a frame body window glass. It is a figure explaining the process A of the manufacturing method of the window glass with a frame of this invention. Convex portions in the reinforcing member, in structure in which a recess in the mold is a diagram for explaining a state in which is fitted the projections and recesses. It is a figure explaining the process B of the manufacturing method of the window glass with a frame of this invention. It is a figure explaining the process C of the manufacturing method of the window glass with a frame of this invention. It is a figure explaining the operation example of the protrusion at the time of inserting a protrusion in a reinforcement member regarding the process C of the manufacturing method of the window glass with a frame of this invention. It is a figure explaining the operation example of the protrusion at the time of inserting a protrusion in a reinforcement member regarding the process C of the manufacturing method of the window glass with a frame of this invention.

  A framed window glass to be manufactured by the method of the present invention will be described using the drawings. FIG. 1: is the figure which showed typically the principal part of the window glass with a frame. 2 and 3 schematically show the glass peripheral portion in the a-a 'cross section in FIG. FIG. 2 shows the case where the reinforcing member 4 is a flat plate, and FIG. 3 shows the case where the groove of the recessed portion is provided in the longitudinal direction of the reinforcing member 4. A frame 3 made of soft resin is formed on the periphery of the glass plate 2, and the frame 3 is configured to include a reinforcing member 4 made of hard resin. In the frame body, the rigidity is improved in the vicinity where the reinforcing member 4 is disposed. In this example, the reinforcing member 4 is provided on one side, but may be provided on another side.

  As the glass plate 2, in addition to flat sheet glass, bent sheet glass, tempered glass, bent tempered glass, flat sheet glass, laminated glass produced using bent sheet glass, etc. are used. . At the peripheral portion of the glass plate 2, black solid printing by black ceramics or the like may be provided.

The frame 3 is formed by injection molding a thermoplastic elastomer (resin) such as a styrene type, an olefin type, a vinyl chloride type, or a urethane type into a mold (described in detail later). For the reinforcing member 4, a resin of the same type that fuses with the above-mentioned frame is used, and a resin having a hardness higher than that of the resin is used. When using a different material from the frame, it is necessary to apply a primer or the like to the reinforcing member 4.
Below, the manufacture example of the glass 1 with a frame is demonstrated using drawing. The description of FIGS. 4 to 7 corresponds to the case where the reinforcing member 4 of FIG. 3 has a groove with a recess in the longitudinal direction, but the reinforcing member 4 as shown in FIG. 2 is a flat plate Even in accordance with this, it is possible to operate. 4 to 6 correspond to the cross section aa 'in FIG. 1, and the main parts of the cross sections of the molds 5 and 6 are shown. As shown in FIG. 4, the reinforcing member 4 and the glass plate 2 are disposed in the core mold 6. This corresponds to the step A. Next, as shown in FIG. 6, the cavity mold 5 is fitted to the core mold 6 to form a void 8 in the mold. This corresponds to the step B. At this time, it is preferable that there be a space between the glass plate 2 and the reinforcing member.

Further, as shown in FIG. 5, on the side of the reinforcing member 4 in the longitudinal direction, reinforcing member convex portions 4a to be fitted with the mold concave portions 6b (preferably, the convex portions 4a are dotted ) May be provided. By fitting in this manner, the reinforcing member 4 can be easily held at the arrangement position. Wherein the arrangement of the core mold 6 of the reinforcing member 4, for fitting ease of the protrusion 4a and the recess 6b, the shape of the reinforcing member projecting portion 4a and a dome-like shape, a mold recess 6b The crater-like shape corresponding to the dome shape is preferable. The size of the reinforcing member projecting unit 4a, considering the fitting properties, and the height 0.5 to 1 mm, a length 5 to 15 mm, the spacing between the projecting portions 4a, 80 to at between the center of the convex portion It is preferable to set it as 120 mm.

  As shown in FIGS. 7A and 7B, the protrusion 7 is inserted into the end (or the start) of the reinforcing member 4 in the longitudinal direction (for example, the area of b in FIG. 1). Here, the start end means the side where the injection of resin starts (the upstream side), and the end end means the direction in which the injected resin flows (the downstream side).

8 and 9 show an operation example of the protrusion when inserting the protrusion into the reinforcing member 4. 8 and 9 show an operation of inserting the projection 7 at the end of the c-c 'cross section of the reinforcing member 4 of a long body as in the region of b of FIG. As shown in FIG. 8, the core mold 6 is provided with a slide member 9 capable of sliding toward the reinforcing member 4, and a projection 7 is provided on the surface of the slide member 9 facing the reinforcing member 4. Is equipped. By sliding the slide member 9 in the direction of the reinforcing member 4, the protrusion 7 can be inserted into the side of the end of the reinforcing member 4 as shown in FIG. 9. When the resin is injection-molded into the space 8, the slide member 9 is fixed so as to keep the protrusion 7 inserted into the reinforcing member 4. By performing such an operation, it becomes easy to hold the reinforcing member 4 at the arranged position, and it becomes easy to reduce the occurrence of warpage of the reinforcing member 4.

  In consideration of the insertability into the reinforcing member 4, the protrusion 7 is preferably a metallic needle-like member, and in step C, the protrusion 7 is 0.5 to 0.5 from the surface layer of the reinforcing member 4. It is preferable to insert 1 mm deep.

Case of fitting the convex portion 4a and the mold recess 6b as described above, the insertion of the projection 7 may be performed only at the end. The end of the reinforcing member is more likely to warp due to linear expansion and flow due to the heat of the injection resin, and the insertion of the projection 7 is effective to reduce the occurrence of warpage of the reinforcing member even if only the end is Play. It may be located on the side of the reinforcing member 4 rather than at the end (or the start) in the longitudinal direction. Without fitting the convex portion 4a and the mold recesses 6b, the case of producing a window glass with the frame, the insertion of the projection 7, in the longitudinal direction of the sides of the reinforcing member 7, for example, 80 It may be performed at intervals of 120 mm.

  In order to form the frame 3, the resin is injected into the space 8. This corresponds to the step D. The reinforcing member 4 thermally expands due to the heat of the resin forming the frame 3 and the reinforcing member moves due to the flow of the resin, and the reinforcing member is easily warped. Movement and warpage can be easily suppressed.

1 Window glass with frame 2 Glass plate
DESCRIPTION OF SYMBOLS 3 Frame 4 Reinforcement member 4a Reinforcement member convex part 5 Cavity die 6 Core die 6b Die recess 7 Protrusion 8 Air gap 9 Slide member

Claims (4)

A window glass with the frame, at least to one side provided with a reinforcing member made of hard resin, the frame is peripheral to the soft resin formed has that caged material window by injection molding of the glass plate of the frame body portion A method of manufacturing glass,
The reinforcing member is provided along the end of the glass plate, and between the glass plate and the reinforcing member, there is provided a gap through which a resin for forming the frame can flow during injection molding. Step A of placing in a mold consisting of a cavity mold and a core mold ,
Closing the mold and forming a void of the frame in the mold;
Inserting a projection for maintaining the arrangement position of the reinforcing member in at least one place of the side of the reinforcing member ;
Step D of injecting resin for forming the frame body to said air gap,
Comprising the step E, to withdraw the projections from the reinforcing member,
The core mold is provided with a slide member capable of sliding toward the side of the reinforcing member, and the surface of the slide member facing the reinforcing member is provided with the projection. The manufacturing method of the window glass with a frame characterized by being . The reinforcing member is a long body, a manufacturing method of the frame with glazing according to claim 1, characterized in that plugged the protrusion in the longitudinal direction of the terminal portion or the beginning of the reinforcing member. Method for manufacturing a frame with glazing according to claim 1 or 2, wherein the protrusions are needle-shaped member. The reinforcing member is provided with a projection or recess, the mold is provided with a recess or projection, and the projection or recess on the reinforcing member side is engaged with the recess or projection on the mold The manufacturing method of the window glass with a frame as described in any one of the Claims 1 thru | or 3 characterized by making it.