JP2002160521A - Window made of plastic resin for vehicles and its manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fix a terminal firmly to a plastic resin-made base which is a window material. SOLUTION: This window is equipped with a plastic resin-made base 2, a terminal 3 of which base parts 3a-2, 3b-2 are buried into the base 2 and main body 3a-3 protrudes in the direction of a vehicle inside when it is fixed to the vehicle, and an electrically conducting layer 4 which is coated on a face that the terminal main body 3a-3 of the base 2 protrudes and an exposed surface in a flat portion 3a-1 of a terminal piece 3a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin window for a vehicle and a method for manufacturing the same.

[0002]

2. Description of the Related Art In recent years, various studies have been made to use a resin instead of inorganic glass as a window material in order to reduce the weight of a vehicle. Then, even in the case of a window made of resin, it is conceivable to form a heat ray print on the surface of a substrate which is a resin plate material in order to remove the fogging due to dew condensation as in the case of glass. In addition, there is a need to provide a conductor such as an antenna print on a resin substrate for radio or television reception. It is necessary to connect a metal terminal to the conductive layer such as a hot-wire print or a conductive wire in order to supply power or pass an electric signal. However, heretofore, there has been no known resin window for a vehicle in which metal terminals are firmly fixed to a resin substrate via a conductive layer, and no particular method of manufacturing such a resin window for a vehicle has been known.

[0003]

SUMMARY OF THE INVENTION In view of the above-mentioned circumstances, the present invention has been made in consideration of the above circumstances, and in the case where a resin is used as a window material, a resin for a vehicle in which metal terminals can be firmly fixed to a substrate which is a resin plate material. An object of the present invention is to provide a window manufacturing method and a window manufacturing method.

[0004]

SUMMARY OF THE INVENTION The present invention comprises a resin substrate for a vehicle window, a base, a flat portion connected to the base, and a terminal body portion connected to the flat portion. When embedded in the vehicle, the surface of the flat portion is located on the same plane as the inside surface of the board in the state of attachment to the vehicle, and the terminal body portion is inside the vehicle in the state of attachment to the vehicle. A resin window for a vehicle, comprising: a metal terminal that protrudes in a direction; and a conductive layer formed on a surface of the substrate from which the terminal body protrudes and on a surface of the flat portion.

[0005] The present invention also provides a resin substrate for a vehicle window and a resin provided on a vehicle interior surface of the substrate when mounted on a vehicle, and having a conductive layer formed on a surface facing the vehicle interior surface. And a slit portion provided with a base portion and a terminal body portion connected to the base portion, the base portion being in contact with the conductive layer in a state where the base portion is attached to the substrate, and the terminal body portion being formed in the film. And a metal terminal adapted to protrude in a direction toward the inside of the vehicle when mounted on the vehicle.

The present invention provides a base, a flat portion connected to the base,
And a metal terminal provided with a terminal body connected to the flat portion, wherein the flat portion contacts the concave wall of the cavity in the mold, the base is located in the cavity, and the terminal body is shifted from the cavity to the cavity. A step of attaching the terminal body to the mold so as to protrude outward in the depth direction of the mold and supporting the terminal body by a supporting means; and injecting and solidifying a molten resin into a cavity of the mold to provide a substrate. Forming a laminate;
Removing the laminate from the mold, and forming a conductive layer on a surface of the substrate on which the terminal body protrudes and on a surface of the flat portion not covered by the substrate. A method for manufacturing a window is provided.

The present invention also relates to a terminal having a terminal and a terminal body, wherein the terminal is provided in a slit formed in a thickness direction of the film so that the base contacts a conductive layer formed on the film. Inserting the portion into the cavity and fixing the terminal to the film; and, in the cavity of the mold, the conductive layer is on the side not in contact with the concave wall of the cavity, and the terminal body protrudes out of the cavity. Mounting the film and holding the terminal body by magnetic force, and injecting the molten resin into the mold cavity while the film is mounted and the terminal body held by the magnetic force and solidifying the molten resin. Forming a laminate having a substrate, and a method for manufacturing a resin window for a vehicle comprising the steps of:

According to the resin window for a vehicle and the method of manufacturing the same according to the present invention, when a resin is used as the window material, the base of the terminal is fixed to and integrated with the resin substrate. Can be easily and reliably fixed firmly.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show an example of an embodiment of the present invention. FIG. 1 is a plan view showing an example of a resin window for a vehicle according to the present invention, and FIG. 2 is an enlarged view in the direction of arrows II-II in FIG. FIG. 3 is a plan view of a terminal used for the vehicle resin window of FIG. 1, and FIG. 4 is an example of a method of manufacturing the vehicle resin window of the present invention, in which the vehicle resin window shown in FIGS. It is sectional drawing of the metal mold | die used at the time of injection molding.

In FIGS. 1 and 2, reference numeral 1 denotes a resin window for a vehicle. The resin window 1 for a vehicle includes a plate-shaped substrate 2. As the substrate 2, a transparent thermoplastic resin such as an acrylic resin, polycarbonate, or polyarylate is used. In addition, a substrate 2 which is located inside the vehicle when mounted on the vehicle.
On one surface, a terminal 3 having terminal pieces 3a and 3b in which bases 3a-2 and 3b-2 described later are embedded in the substrate 2 is integrally provided. Copper or iron is used for the terminal 3.

The terminal piece 3a has a flat portion 3a-1 whose surface is flush with the surface of the substrate 2 and is exposed from the substrate 2 when attached to the substrate 2. Also, the terminal strip 3a
Is integrally connected to one end of the flat portion 3a-1, extends obliquely to the center of the substrate 2 in the thickness direction so as to be separated from the flat portion 3a-1, and further flattened at the center of the substrate 2 in the thickness direction. Part 3
It has a base 3-2a extending in a direction away from the flat portion 3a-1 in parallel with a-1. Further, the terminal piece 3a
The flat part 3a is integrally connected to the other end of the flat part 3a-1.
-1 is bent at 90 degrees from the surface of the substrate 2 and extends in the direction away from the surface of the substrate 2 and is bent in the middle and extends obliquely in the direction further away from the flat portion 3a-1 and the substrate 2. 3 is provided.

The terminal strip 3b is disposed below the oblique portion of the terminal body 3a-3 in the terminal strip 3a. Thus, the terminal piece 3 b has a flat portion 3 b-1 which is exposed from the substrate 2 when the terminal piece 3 b is attached to the substrate 2, the surface of which is flush with the surface of the substrate 2. The terminal piece 3b is integrally connected to one end of the flat portion 3b-1 and is connected to the flat portion 3b-1.
The base 3b extends obliquely toward the center in the thickness direction of the substrate 2 so as to be away from the base 1 and further extends in the direction away from the flat portion 3a-1 in parallel with the flat portion 3b-1 on the center in the thickness direction of the substrate 2
-2. Further, the terminal piece 3b is
A projection 3b-3 is integrally connected to the other end of -1 and is bent at 90 degrees with respect to the flat portion 3b-1 and protrudes in a direction away from the surface of the substrate 2.

On the both sides in the width direction of the substrate 2 on the side where the terminals 3 are provided, a wide conductive layer 4 extending vertically is coated on the surface of the substrate 2 as an electrode. Thus, the conductive layer 4 is also applied to the exposed surface of the flat portion 3a-1 in the terminal piece 3a, and is in a connected state with the terminal piece 3a. A plurality of narrow conductive layers 5 serving as hot-wire prints and conductive wires are applied on the side of the substrate 2 where the terminals 3 are provided so as to connect the left and right conductive layers 4. As the conductive layers 4 and 5, conductive metal powder such as silver powder and a binder such as polyester resin and vinyl acetate resin,
Alternatively, a mixture obtained by kneading a solvent such as butyl cellosolve acetate for imparting printability is used.

When manufacturing the resin window 1 for a vehicle, a mold 6 as shown in FIG. 4 is used. The mold 6 includes a movable mold 7 and a fixed mold 8, and cavities 9 and 10 are formed in the movable mold 7 and the fixed mold 8. The fixed die 8 is provided with a supply path 11 for supplying the molten resin to the cavities 9 and 10. Also, on one side of the fixed mold 8, the concave wall 1 of the cavity 10 is provided.
A hollow hole 12 extending in a direction parallel to Oa is provided. In the hollow hole 12, a block 13 for fixing the terminal 3 set in the fixed die 8 can be slid in a direction indicated by an arrow A in FIG. 4 by an appropriate driving device such as a cylinder. The inner portion of the hollow hole 12 and the distal end of the block 13 are fixed to the terminal body 3a-3 of the terminal piece 3a, so that the projecting portions of the terminal body 3a-3 and the terminal piece 3b in the terminal piece 3a are provided. The shape conforms to the bent shape according to 3b-3.

Next, a procedure for manufacturing the vehicle resin window 1 will be described. With the movable mold 7 separated from the fixed mold 8, the terminal 3 integrally formed with the terminal pieces 3 a and 3 b is set in the cavity 10 of the fixed mold 8. In the set, the surface of the flat portion 3a-1 of the terminal piece 3a facing the concave wall 10a of the cavity 10 and the surface of the flat portion 3b-1 of the terminal piece 3b facing the concave wall 10a of the cavity 10 correspond to the concave wall 10a. Abut the terminal strip 3a
Is carried out so that the terminal body 3a-3 of FIG. The flat portion 3a
It is desirable that the portion of the flat portion 3b-1 abutting against the concave wall 10a be temporarily fixed with an adhesive or a double-sided tape. Further, the block 13 is fitted and inserted into the hollow hole 12, and the terminal body 3a-3 of the terminal piece 3a and the projecting portion 3a of the terminal piece 3b are formed by the block 13 and the inner wall surface of the hollow hole 12.
The terminal 3 is fixed so that the terminal 3 does not move during the injection molding operation with b-3 interposed therebetween.

When the terminal 3 is set in the cavity 10 of the fixed mold 8 in a predetermined state, the movable mold 7 is brought close to the fixed mold 8 side to close the mold 6, and thereafter, the molten resin is poured into the predetermined mold. The cavity is injected and filled into the cavities 10 and 9 by pressure. Thus, when the molten resin is solidified, the substrate 2 is formed, but the base 3-2a of the terminal piece 3a and the terminal piece 3
The base 3-2b of b is embedded and fixed in the substrate 2 by the solidification of the molten resin. When the molten resin has cooled and solidified, the mold 6 is opened, the laminate is taken out from the fixed mold 8, and the conductive layers 4 and 5 are applied to the surface of the substrate 2 from which the terminal body 3a-3 protrudes. . At this time, the conductive layer 4 is also applied to the exposed surface of the flat portion 3a-1 of the terminal piece 3a. Thus, the resin window 1 for a vehicle is completed.

According to the illustrated example of the present invention, when a resin is used as the window material, the base 3-3 of the terminal piece 3 a of the terminal 3 is used.
2a and the base 3-2b of the terminal strip 3b
, The terminal 3 can be easily and reliably and firmly fixed to the substrate 2.

FIGS. 5 to 9 show another embodiment of the present invention. FIG. 5 is a plan view showing another example of the resin window for a vehicle of the present invention, and FIG. 6 is an enlarged view in the direction of arrows VI-VI in FIG. 7 is a side view of a terminal used in the resin window for a vehicle shown in FIG. 5, FIG. 8 is a view taken in the direction of arrows VIII-VIII in FIG. 7, and FIG. FIG. 7 is a cross-sectional view of a mold used for injection molding the vehicle resin window shown in FIGS. 5 and 6 in another example.

5 and 6, reference numeral 21 denotes a vehicle resin window. The vehicle resin window 21 has a plate-shaped substrate 22. As in the case of the above-described embodiment, a transparent thermoplastic resin such as an acrylic resin, polycarbonate, or polyarylate is used for the substrate 22. Also, on one surface of the substrate 22 which is on the inside of the vehicle when mounted on the vehicle,
A film 2 having a hard coat layer on the entire surface
3 is attached, and a film 24 having a hard coat layer on the surface is attached to the entire other surface of the substrate 22 on the outside of the vehicle. As the films 23 and 24, the same material as that of the substrate 22 is used.
Examples thereof include transparent thermoplastic resins such as polycarbonate, polyarylate, and polysulfone.

On the surface of the film 23 facing the substrate 22, a plurality of narrow conductive layers 2 serving as heat ray prints and conducting wires are provided.
5 is applied so as to extend in the width direction of the substrate 22. On the same surface of the film 23 as the surface on which the conductive layer 25 is applied, a wide conductive layer 26 serving as an electrode is applied so as to be connected to both ends in the longitudinal direction of the conductive layer 25. . The conductive layer 26 extends in the vertical direction along the edge near the both ends in the width direction of the substrate 22. Examples of the conductive layers 25 and 26 include binders such as a conductive metal powder such as silver powder and a polyester resin or a vinyl acetate resin having adhesion to the film 23, or butyl cellosolve acetate for imparting printability. A mixture obtained by kneading a solvent is used.

A portion of the film 23 adjacent to one longitudinal end (the lower end in FIG. 5) of each conductive layer 26 is provided with the conductive layer 2.
A slit portion 27 (see FIG. 6) is formed also penetrating through holes 5 and 26. A terminal body 28 of a terminal 28 having a base 28 a attached to the inside of the substrate 22 so as to be parallel to the film 23 and in close contact with the conductive layer 26 is provided in the slit 27.
b is inserted and extends in the direction away from the surface of the film 23 perpendicularly, and its tip is bent and extends diagonally away from the film 23.

As shown in FIGS. 7 and 8, the terminal 28 is formed in a T shape by bending a metal such as copper or iron, and has a base 28a and a terminal body 28b. Then
The terminal body 28b extends in a direction perpendicular to the base 28a at a middle portion in the longitudinal direction of the base 28a, and the terminal body 28b has a shape in which two plates are joined by a surface. A plate-like reinforcing plate 28c is interposed and fixed between the terminal body portions 28b.

When manufacturing the resin window 21 for a vehicle,
A mold 29 as shown in FIG. 9 is used. The mold 29 includes a movable mold 30 and a fixed mold 31, and the movable mold 30 and the fixed mold 31 have a cavity 3.
2 and 33 are formed. A supply path 3 for supplying molten resin to the cavities 32 and 33 is provided in the fixed mold 31.
4 are provided. On the opposite side of the fixed mold 31 from the cavity 33, a hollow casing 35 is provided integrally with the fixed mold 31, and an electromagnet 36 is fitted into the casing 35, and the fitted electromagnet 36 is covered with a lid 35a. Can be fixed.

A through hole 37 is formed in the fixed mold 31 so that the cavity 33 of the fixed mold 31 and the hollow portion of the casing 35 communicate with each other. When the base 28a is set, the terminal body 28b extending straight can be inserted through the through hole 37. In addition, at the axis of the electromagnet 36,
A bottomed hole 38 is formed so that the distal end side of the terminal main body 28b inserted through the through hole 37 is fitted.

Although not shown, the cavities 32 and 33 have films 24, 2
3 are stored in the cavities 3 and 24.
A vacuum suction device is connected so as to be in contact with the concave walls 32a and 33a of the two and 33, respectively. Further, the cavity 32,
Although not shown in FIG. 33, after the positioning pins for positioning the films 24 and 23 stored in the cavities 32 and 33, the movable mold 30, and the fixed mold 31, the injection molding is performed. An ejection pin for removing the molded product from the fixed mold 31 is provided.

Next, a procedure for manufacturing the resin window 21 for a vehicle will be described. First, films 23 and 24 corresponding to the size of the window of the vehicle are prepared. Conductive layers 25 and 26 are applied on one surface of the film 23. In the slit portion 27 formed through the film 23 and the conductive layer 26 in the thickness direction, the terminal body portion is formed such that the surface of the base 28a facing the conductive layer 26 is in contact with the conductive layer 26. The base 28a is temporarily fixed to the conductive layer 26 of the film 23 with an adhesive or a double-sided tape.

When the films 23 and 24 are prepared, the film 24 is placed in the cavity 32 of the movable mold 30 which has been opened.
Is stored, and the film 24 is attached to the cavity 32 so that one surface of the film 24 comes into contact with the concave wall 32 a of the cavity 32 by suction by a vacuum suction device. In addition, the terminal body 28b faces the concave wall 33a and the conductive layer 2
5 and 26 are directed to the side away from the concave wall 33a so as not to contact the concave wall 33a,
3 is stored in the cavity 33 of the fixed mold 31. Then, the terminal body 28b of the terminal 28 is inserted through the through hole 37 of the fixed mold 31, and is inserted into the hole 38 of the electromagnet 36 which has been fitted and fixed in the hollow portion of the casing 35 in advance.

The terminal body 28b of the terminal 28 is
When the film 23 is stored in the cavity 33 while being inserted into the hole 38, the film 23 is attached to the cavity 33 so that one surface of the film 23 comes into contact with the concave wall 33a of the cavity 33 by suction using a vacuum suction device. I do. At this time, the films 23 and 24 are fixed by positioning pins.

In the cavities 32, 33, the film 24,
After mounting 23, the movable mold 30 is moved to the fixed mold 31 side, the mold 29 is closed, the electromagnet 36 is excited, and the terminal body 28b is fixed by the electromagnet 36.
The terminal 28 is held, and the molten resin is supplied to the supply path 3 at a predetermined pressure.
4 and injection-filling into the cavities 33 and 32. Thus, the substrate 22 is formed when the molten resin solidifies, but the surfaces of the films 23 and 24 that come into contact with the molten resin are
To the base 22 of the terminal 28
8a is attached to the substrate 22. Also,
When the molten resin has cooled and solidified, the movable mold 30 is opened, and the laminate is removed from the fixed mold 31. When the laminate is removed, the tip of the terminal body 28b of the terminal 28 is bent to complete the resin window 21 for a vehicle.

According to the illustrated example of the present invention, when a resin is used as the window material, the base 28a of the terminal 28 is attached to and integrated with the resin substrate 22.
The terminal 28 can be easily and securely fixed to the terminal 2 firmly.

The connection positions of the terminals 3 and 28 to the conductive layers 4 and 26 in the embodiment of the present invention are not limited to the positions shown in the drawings, and are electrically connected to the conductive layers 4 and 26. It may be provided at any position as long as it is performed.
Further, although the resin windows 1 and 21 for vehicles in each illustrated example have a flat shape, they may have a curved shape, and the substrates 2 and 22 and the films 23 and 24 may be not necessarily transparent. it can. Furthermore, although the case where no film is provided on both surfaces of the substrate 2 of the resin window 1 for a vehicle has been described, it is also possible to provide a film, and the film 23, 24 may be provided on both surfaces of the resin window 21 for a vehicle. Although provided, the present invention can be implemented without providing the films 23 and 24. Furthermore, the conductive layers 4, 5, 25, 26 may be applied or printed.

[0032]

As described above, according to the resin window for a vehicle and the method of manufacturing the same according to the present invention, when a resin is used as the window material, the base of the terminal is fixed to the resin substrate and integrated. Because of this, it is possible to achieve an excellent effect that the terminal can be easily and reliably and firmly fixed to the substrate.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of a resin window for a vehicle according to the present invention.

FIG. 2 is an enlarged view in the direction of arrows II-II in FIG.

FIG. 3 is a perspective view of a terminal used for the resin window for a vehicle shown in FIG. 1;

FIG. 4 is a cross-sectional view of a mold used for injection-molding the resin window for a vehicle shown in FIGS. 1 and 2 in one example of the method for manufacturing the resin window for a vehicle of the present invention.

FIG. 5 is a plan view showing another example of the vehicle resin window of the present invention.

6 is an enlarged view in the direction of arrows VI-VI in FIG. 5;

7 is a side view of a terminal used for the resin window for a vehicle shown in FIG. 5;

8 is a view in the direction of arrows VIII-VIII in FIG. 7;

FIG. 9 is a cross-sectional view of a mold used for injection-molding the vehicle resin window shown in FIGS. 5 and 6 in another example of the method for manufacturing the vehicle resin window of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Resin window for vehicles 2 Substrate 3 Terminal 3a-1 Flat part 3a-2 Base 3a-3 Terminal body part 4 Conductive layer 7 Movable mold (die) 8 Fixed mold (die) 10 Cavity 10a Concave wall DESCRIPTION OF SYMBOLS 13 Block (support means) 21 Resin window for vehicles 22 Substrate 23 Film 26 Conductive layer 27 Slit part 28 Terminal 28a Base part 28b Terminal body part 30 Movable die (die) 31 Fixed die (die) 33 Cavity 33a Concave wall

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B60S 1/58 B60S 1/58 A // B29L 9:00 B29L 9:00 31:30 31:30

Claims (4)

[Claims] 1. A vehicle substrate comprising: a resin substrate for a vehicle window; a base; a flat portion connected to the base; and a terminal body portion connected to the flat portion, and when the base is embedded in the substrate. A metal in which the surface of the flat portion is located on the same plane as the inner side surface of the board when mounted on the vehicle, and the terminal body protrudes in a direction toward the vehicle interior when mounted on the vehicle. And a conductive layer formed on a surface of the substrate from which the terminal body protrudes and a surface of the flat portion. 2. A resin substrate for a vehicle window, and a resin film provided on an inner side surface of the substrate when mounted on a vehicle and having a conductive layer formed on a surface facing the inner side surface of the substrate. A base and a terminal body connected to the base, wherein the base is in contact with the conductive layer in a state where the base is attached to the substrate, and the terminal body is inserted through a slit formed in a film. A resin window for a vehicle, comprising: a metal terminal that projects in a direction toward the inside of the vehicle when mounted on the vehicle. 3. A metal terminal comprising a base, a flat portion connected to the base, and a terminal body portion connected to the flat portion, wherein the flat portion contacts a concave wall of the cavity in the mold, Mounting the terminal body in a mold such that the base is located in the cavity, and the terminal body protrudes outward from the cavity in the depth direction of the cavity, and supporting the terminal body with support means; A step of injecting and solidifying the molten resin into a laminate to form a laminate having a substrate; removing the laminate from a mold; and forming a substrate on the surface of the substrate on which the terminal body protrudes and on the flat portion of the substrate. Forming a conductive layer on a surface that is not covered with a resin. 4. The terminal body is inserted through a slit formed in a thickness direction of the film so that the base of the terminal having the base and the terminal body comes into contact with a conductive layer formed on the film. Fixing the terminal to the film, and mounting the film in the cavity of the mold such that the conductive layer is on the side where the conductive layer is not in contact with the concave wall of the cavity and the terminal body protrudes out of the cavity. And a step of magnetically holding the terminal body, and injecting and solidifying a molten resin into a mold cavity in a state where the film is mounted and the terminal body is held by the magnetic force, and a substrate is provided. Forming a laminated product, comprising the steps of: