JP2008087702A - VEHICLE WINDOW GLASS, VEHICLE WINDOW GLASS MANUFACTURING METHOD, AND SCREEN PRINTING PLATE - Google Patents

Abstract

[PROBLEMS] To provide a vehicle window glass, a screen printing plate, and a vehicle window glass capable of enhancing the aesthetics by making a step due to the position shift inconspicuous even when a positional shift between a first masking layer and a second masking layer occurs. A manufacturing method is provided.
A window glass for a vehicle having a substantially annular concealing layer formed on a peripheral edge of a glass body, wherein the concealing layer includes a first strip-shaped first shielding layer and a second strip-shaped second shielding layer. a hiding layer 3b is are separately printed on glass body 2, together with the end portion of the first shielding layer 3a 3a ₁ and the end portion 3b ₁ of the second shielding layer 3b are superposed, the first shielding layer 3a The vehicle window glass 1 in which the inclined contour line 3a ₄ included in the contour line 3a ₃ on the inner peripheral side and the contour line 3b ₃ on the inner peripheral side of the second concealing layer 3b intersect is adopted.
[Selection] Figure 2

Description

  The present invention relates to a vehicle window glass, a method for manufacturing a vehicle window glass, and a screen printing plate, and more particularly to a technique for forming a printing layer on a window glass such as a windshield, rear glass, side glass, and roof glass of an automobile.

  Conventionally, in a window glass such as a windshield and rear glass of an automobile, a screen printing layer called a “hiding layer” is formed on the periphery of the window glass for various purposes. In general, on the rear glass and side glass, in addition to the concealing layer, antenna wires for television and radio, heat rays for preventing fogging, and the like are formed by screen printing.

By the way, in large vehicles such as buses and trucks, the size of windshields and rear glasses has been increased due to the need to improve the appearance design and to ensure a wider driver's field of view. In small cars such as passenger cars, large sunroofs with a larger area than conventional sunroofs and glass roofs (so-called panoramic glass) that cover most of the vehicle roofs are used to improve daylighting and ventilation. Accordingly, the size of the glass for the sunroof is being increased.
As described above, while the size of the vehicle window glass is increasing, it is difficult to increase the size of the screen printing apparatus for forming the concealing layer, the antenna wire, the heat wire, or the like from the viewpoint of cost. In view of this, a method of screen-printing the concealing layer, the antenna wire, or the heat wire in two steps is used.
Patent Document 1 below describes a general technique for forming a print layer in two steps.

In FIG. 10, the top view of the screen printing plate in the case of forming the printing layer of the conventional window glass for vehicles in two steps is shown. Moreover, in FIG. 11, the top view and sectional drawing which looked at the conventional window glass for vehicles from the vehicle inner side are shown. Further, FIG. 12 shows an enlarged plan view and an enlarged sectional view of a main part of the vehicle window glass of FIG.
In the screen printing plate shown in FIG. 10, a first printing plate 101 shown in FIG. 10A and a second printing plate 111 shown in FIG. 10B are used in pairs. Each of the printing plates 101 and 111 includes screen meshes 102 and 112 made of polyester fibers and the like, and frame bodies 103 and 113 that support the screen meshes 102 and 112. The screen meshes 102 and 112 usually have openings of about 90 to 380 mesh. On each screen mesh 102, 112, the outline of the glass for a vehicle that is the printing object is indicated by a dotted line. The screen meshes 102 and 112 of the printing plates 101 and 111 are provided with print areas 104 and 114 for printing a concealing layer on the vehicle glass. In the printing plate 101 shown in FIG. 10A, a printing region 104 is provided along the upper contour line of the vehicle glass. Further, in the printing plate 111 shown in FIG. 10B, printing regions 114 are provided along the contour lines on the lower side and the left and right sides of the vehicle glass. And each edge part 104a, 114a of each printing area | region 104,114 shown to Fig.10 (a) and FIG.10 (b) is positioned so that it may mutually overlap. As the ink used for forming the masking layer, for example, an ink in which a dark pigment, glass frit, refractory filler, resin such as ethyl cellulose, and the like are dispersed in a solvent is used. Then, the printing plates 101 and 111 are sequentially superimposed on the vehicle glass, printed with ink, and further baked, whereby a frame-like concealing layer 123 is formed on the peripheral edge 122d as shown in FIG. The formed vehicle glass 121 is manufactured.

  The vehicle window glass 121 shown in FIG. 11 is a so-called laminated glass. As shown in FIG. 11B, an interlayer film 121c made of polyvinyl butyral or the like is sandwiched between two plate glasses 121a and 121b. Configured. The concealment layer 123 is formed by printing on the peripheral edge of the plate glass 121a facing the vehicle inside of the two plate glasses. As shown in FIG. 11A, the concealment layer 123 is composed of a first concealment layer 123a formed by the first printing plate 101 and a second concealment layer 123b formed by the second printing plate 111. The ends of the first hiding layer 123a and the second hiding layer 123b are connected to each other, so that the whole hiding layer 123 is formed in a frame shape.

In FIG. 12, the vicinity of the edge part of the 1st concealment layer 123a and the 2nd concealment layer 123b is expanded and shown. As shown in FIG. 12, over the end 123b ₁ of the dark color of the second shielding layer 123b, the ends 123a ₁ of the first shielding layer 123a in the dark are superimposed. In addition, a primer layer 124 including a silane coupling agent colored in the same color as the hiding layer 123 is applied to the outside of the first hiding layer 123a and the second hiding layer 123b. This makes it difficult to visually recognize the boundary between the masking layer 123 and the primer layer 124, and it is actually difficult to visually recognize the contour lines 123 a ₂ and 123 b ₂ on the outer peripheral side of the masking layer 123.
On the other hand, as shown in FIG. 12B, since the primer layer 124 is not applied to the inside of the first hiding layer 123a and the second hiding layer 123b, the contour line 123a on the inner peripheral side of the hiding layer 123 is formed. ₃ , 123b ₃ is easily visible.
JP-A-6-127112

By the way, since the first concealment layer 123a and the second concealment layer 123b are respectively formed by printing using separate printing plates 101 and 111, as shown in FIG. There's a problem. In particular, the inner circumferential side of the masking layer 123, the positional deviation between the first hiding layer 123a and the second hiding layer 123b occurs, the surface inside the contour line 123a ₃ of the first shielding layer 123a, the second step 123c is generated between the surface inside the contour line 123b ₃ of the concealing layer 123b, appearance is disadvantageously very poor.
The present invention has been made in view of the above circumstances, and even when a positional shift between the first and second concealing layers occurs, it is possible to enhance the aesthetics by making the step due to the positional shift inconspicuous. An object of the present invention is to provide a vehicle window glass, a method for manufacturing a vehicle window glass, and a screen printing plate.

In order to achieve the above object, the present invention employs the following configuration.
The vehicle window glass of the present invention is a vehicle window glass in which a substantially annular concealing layer is formed on a peripheral edge of a glass body, and the concealing layer includes a substantially strip-shaped first concealing layer and a substantially strip-shaped concealing layer. Two concealing layers are separately printed on the glass body, the end portions of the first concealing layer and the end portions of the second concealing layer are overlapped, and the contour on the inner peripheral side of the first concealing layer The line and the contour line on the inner peripheral side of the second concealing layer intersect each other.
Moreover, in the vehicle window glass of the present invention, an intersection angle between the inner peripheral side contour line of the first concealing layer and the inner peripheral side contour line of the second concealing layer is 5 ° to 30 °. A range is preferable. In particular, when the overlapping position of each end portion of the first and second shielding layers is a place other than the corner portion of the annular shielding layer, the crossing angle is preferably set to 5 to 30 °.
Moreover, in the vehicle window glass of the present invention, the intersection angle between the inner peripheral side contour line of the first concealing layer and the inner peripheral side contour line of the second concealing layer is 70 ° to 120 °. It may be a range. In particular, when the overlapping position of each end portion of the first and second shielding layers is in the vicinity of the corner portion of the annular shielding layer, the crossing angle is preferably set to 70 to 120 °.

Next, the manufacturing method of the window glass for vehicles of this invention is a manufacturing method of the window glass for vehicles in which the substantially cyclic | annular concealment layer is formed in the peripheral part of the glass main body, Comprising: A substantially strip-shaped 1st concealment layer and When forming the concealment layer by screen-printing a substantially strip-shaped second concealment layer on the glass body, the end of the first concealment layer and the end of the second concealment layer are overlapped, And it is the method of making the outline of the inner peripheral side of the said 1st concealment layer, and the outline of the inner peripheral side of the said 2nd concealment layer cross | intersect.
In the vehicle window glass manufacturing method of the present invention, the intersection angle between the inner peripheral side contour line of the first concealing layer and the inner peripheral side contour line of the second concealing layer is 5 ° to 5 °. A range of 30 ° is preferable.
In the vehicle window glass manufacturing method of the present invention, the intersecting angle between the inner peripheral side contour line of the first concealing layer and the inner peripheral side contour line of the second concealing layer is 70 ° to It may be in the range of 120 °.

  The screen printing plate of the present invention is a screen printing plate used in the method for manufacturing a vehicle window glass described above.

According to the vehicle window glass described above, the end portions of the first hiding layer and the second hiding layer constituting the hiding layer are overlapped with each other, and the contour lines on the inner peripheral sides intersect each other. The overlapping part of the first hiding layer and the second hiding layer becomes inconspicuous, and the aesthetics of the vehicle window glass can be improved.
Moreover, the 1st concealment layer and the 2nd concealment layer are made into the range whose crossing angle of the outline of each inner peripheral side of a 1st concealment layer and a 2nd concealment layer is 5 degrees-30 degrees or 70 degrees-120 degrees. The layer overlap can be made less noticeable.

Further, according to the above-described method for manufacturing a window glass for a vehicle, the end portions of the first and second hiding layers constituting the hiding layer are overlapped with each other, and the contour lines on the inner peripheral sides are crossed with each other. Therefore, the overlapping part of the 1st hiding layer and the 2nd hiding layer becomes inconspicuous, and the manufacturing method of the window glass for vehicles excellent in aesthetics can be performed.
Moreover, the 1st concealment layer and the 2nd concealment layer are made into the range of 5 degrees-30 degrees, or 70 degrees-120 degrees by the crossing angle of each inner peripheral side outline of a 1st concealment layer and a 2nd concealment layer. Layer overlap is less noticeable.

  Further, the screen printing plate used in the above-described method for manufacturing a window glass for a vehicle has a vehicle window glass that has improved aesthetics by making the step difference due to the displacement of the concealment layer inconspicuous without increasing the size of the screen printing apparatus. Make it possible to provide.

  ADVANTAGE OF THE INVENTION According to this invention, even when the position shift of a 1st concealment layer and a 2nd concealment layer generate | occur | produces, the window glass for vehicles which can improve the aesthetics by making the level | step difference by position misalignment inconspicuous, and its manufacturing method are provided. it can.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The drawings referred to in the following description are for explaining the configuration of the vehicle window glass, and the size, thickness, dimensions, etc. of each part shown in the figure are the dimensional relationship of each part in the actual vehicle window glass. May be different.

"First example of vehicle window glass"
FIG. 1 shows a first example of a vehicle window glass of the present embodiment. Fig.1 (a) is the top view which looked at the window glass for vehicles from the surface used as a vehicle inside, FIG.1 (b) is sectional drawing corresponding to the AA 'line of Fig.1 (a). FIG. 2 (a) shows an enlarged plan view of the window glass for a vehicle as viewed from the inner surface, and FIG. 2 (b) shows an enlarged cross section corresponding to the line BB ′ of FIG. 1 (a). The figure is shown.
The vehicle glass 1 shown in FIG. 1 is a so-called laminated glass, and is suitably used for a windshield of a large automobile such as a bus or truck, and has a side length of 2 m or more. is there. This glass 1 for vehicles is roughly comprised from the glass main body 2 and the substantially cyclic | annular concealing layer 3 formed in the peripheral part of the glass main body 2. As shown in FIG.

  As shown in FIG. 1 (b), the glass body 2 is composed of an exterior glass 2a, an interior glass 2b, and an intermediate film 2c sandwiched between the exterior glass 2a and the interior glass 2b. Yes. The vehicle exterior glass 2a is a glass that faces the vehicle exterior when the vehicle glass of the present example is mounted on the vehicle, and the vehicle interior glass 2b is a glass when the vehicle glass of the present example is mounted on the vehicle. It is a glass facing the inside of the car. Further, a transparent resin film such as polyvinyl butyral is used for the intermediate film 2c.

Next, as shown in FIGS. 1A and 1B, the concealing layer 3 is formed on the peripheral edge 2d of the vehicle interior glass 2b. The masking layer 3 is a belt-like layer having a substantially constant width, and is formed in an annular shape along the peripheral edge 2d of the vehicle interior glass 2b. Moreover, as shown to Fig.1 (a), the concealment layer 3 is the 1st concealment layer 3a formed along the upper side 2e side in the figure of the glass main body 2, the side 2f side in the figure of the glass main body 2, and And a second concealing layer 3b formed along the lower side 2g side. The first and second masking layers 3a and 3b are connected to each other at two connecting portions 3c, thereby forming an annular masking layer 3 having four corner portions 3d. As shown in FIG. 1A, the connecting portion 3c, which is the overlapping position of the end portions 3a ₁ and 3b ₁ of the _first and second shielding layers 3a and 3b, is a place other than the corner portion 3d of the shielding layer 3 Is arranged.

  Each of the first and second concealing layers 3a and 3b is a so-called black sera printing layer, and is composed of a dark ceramic paste. This dark-colored ceramic paste is obtained by applying a dark color pigment, glass frit, refractory filler and resin such as ethyl cellulose in a solvent to the vehicle interior glass 2b, followed by a drying process and a firing process. The inner glass 2b is baked and formed. The concealing layer 3 may be formed to have a uniform thickness, but may be formed in a dot shape, or may be formed in a gradation by changing the shape, size, density, etc. of the dots stepwise.

FIG. 2A shows an enlarged plan view of the connecting portion 3c, and FIG. 2B shows an enlarged cross-sectional view corresponding to the line BB ′ in FIG. 2A. As shown in FIG. 2 (a) and 2 (b), the first shielding layer 3a in plan view has a contour 3a ₂ of the outer peripheral side, the outer peripheral side of the contour 3a ₂ and substantially parallel inner peripheral side of the It is defined by an outline 3a _3. The inner contour line 3a ₃ includes an inclined contour line 3a _{4 that} is inclined so as to gradually approach the outer contour line 3a ₂ at the end 3a ₁ of the first concealing layer 3a. Yes. The first shielding layer 3a by this configuration, in the portion other than the end portion 3a ₁ near a substantially constant width, which gradually narrow the width at the end 3a ₁ neighborhood.
Next, the second concealing layer 3b in plan view is partitioned by an outer peripheral side contour line 3b ₂ and an inner peripheral side contour line 3b ₃ as in the case of the first concealing layer 3a. The inner peripheral side contour line 3b ₃ is substantially parallel to the outer peripheral side contour line 3b ₂ , so that the width of the second concealing layer 3b is substantially constant throughout the vicinity of the end portion 3b _1. ing.
The width at the end portion 3a ₁ part other than the vicinity of the first shielding layer 3a is set to be substantially the same width as the entire width of the second shielding layer 3b.

The first shielding layer 3a and the second shielding layer 3b, each end _3a 1, 3b ₁ are superimposed on each other in the connecting portion 3c. At this time, the most distal portion 3a ₅ of the first concealing layer is disposed on the second concealing layer 3b. Further, when the end portions 3a ₁ , 3b ₁ are overlapped, the inclined contour line 3a ₄ which is a part of the contour line 3a ₃ on the inner peripheral side of the first concealing layer 3a and the inside of the second concealing layer 3b The peripheral contour line 3b ₃ intersects each other. At this time, the crossing angle α of each contour line is in the range of 5 ° to 30 °.
On the other hand, the contour line 3a ₂ on the outer peripheral side of the first concealing layer 3a and the contour line 3b ₂ on the outer peripheral side of the second concealing layer 3b do not cross each other, and a step 3c is formed between the contour lines 3a ₂ and 3b _{2. 1} is formed.

Further, as shown in FIG. 2B, a dark primer layer 4 is formed on the outer peripheral side of the concealing layer of the vehicle interior glass 2b. The primer layer 4 is composed of a mixture of a dark pigment and a silane coupling agent. When the vehicle window glass 1 according to this embodiment is mounted on a body such as a bus or a truck, an adhesive is applied onto the primer layer 4 and then bonded to the mounted portion of the body. By including the silane coupling agent in the primer layer 4, the adhesive strength between the adhesive and the vehicle window glass 1 is improved.
Further, by forming the dark color primer layer 4 in a portion extending from the masking layer 3 to each side 2e, 2f, 2g of the peripheral edge 2d of the glass body 2, the contour line 3a on the outer peripheral side of the first masking layer 3a is formed. ₂ and the step 3c ₁ between the outer peripheral side contour line 3b _{2 of} the second concealing layer 3b are less visible.

As described above, in the connecting portion 3c of the first shielding layer 3a and the second hiding layer 3b, the hiding layer 3a, the contour 3a and 3b the inner circumferential side of the _4, 3b ₃ are crossed to each other In addition, since the intersection angle α is in the range of 5 ° to 30 °, even if the relative positions of the respective concealing layers 3a and 3b are slightly shifted, no clear step is formed on the inner peripheral side of the connecting portion 3c. .

The glass for vehicles of this embodiment can be manufactured in the following procedures, for example.
First, a concealing layer 3 is formed by preparing a glass plate to be the vehicle interior glass 2b and screen-printing a screen printing plate on the glass plate.

  When forming the shielding layer 3, a screen printing plate as shown in FIG. 3 is prepared. The screen printing plate shown in FIG. 3 is used as a pair of a first printing plate 201 shown in FIG. 3A and a second printing plate 211 shown in FIG. The first printing plate 201 is a printing plate for the first hiding layer 3a, and the second printing plate 211 is a printing plate for the second hiding layer 3b. Each of the printing plates 201 and 211 includes screen meshes 202 and 212 made of polyester fiber and the like, and frame bodies 203 and 213 that support the screen meshes 202 and 212. The screen meshes 202 and 212 usually have openings of about 90 to 380 mesh. In each screen mesh 202, 212, the outline of the glass for a vehicle that is the printing object is indicated by a dotted line. The screen meshes 202 and 212 of the printing plates 201 and 211 are provided with printing areas 204 and 214 for printing a concealing layer on the vehicle glass. In the printing plate 201 shown in FIG. 3A, a printing region 204 is provided along the upper contour line of the vehicle glass. Further, in the printing plate 211 shown in FIG. 3B, a printing region 214 is provided along contour lines on the lower side and the left and right sides of the vehicle glass. And each edge part 204a, 214a of each printing area | region 204, 214 shown to Fig.3 (a) and FIG.3 (b) is positioned so that it may mutually overlap. As the ink used for forming the masking layer, for example, an ink in which a dark pigment, glass frit, refractory filler, resin such as ethyl cellulose, and the like are dispersed in a solvent is used.

Then, the first concealing layer 3a and the second concealing layer 3b are sequentially printed and formed by sequentially superimposing the printing plates 201 and 211 on the glass plate serving as the vehicle interior glass 2b and printing the ink. At this time, as shown in FIG. 2 (b), the end portions 3a ₁ , 3b _{1 of} the first concealing layer 3a and the second concealing layer 3b are overlapped with each other, and the inner peripheral side contour lines 3a ₄ , 3b ₃ cross each other with an intersection angle α of 5 ° to 30 °. FIG. 2B shows an example in which the second concealing layer 3b is formed first and then the first concealing layer 3a is formed. However, the order of forming the first concealing layer 3a and the second concealing layer 3b is reversed. It may be.

  Next, the glass plate on which the concealing layer 3 is printed is subjected to temporary baking of the concealing layer 3 by drying or ultraviolet irradiation, and then the glass plate is cut with a cutting machine and the edges formed by the cutting are polished. And cut out as vehicle interior glass 2b. Moreover, another glass plate is prepared, this another glass plate is cut | disconnected with a cutting machine similarly to the above, the edge formed by cutting | polishing is grind | polished, and it cuts out as the vehicle exterior glass 2a.

Then, the cut glass plate 2 is placed on a predetermined mold in a bending step, heated to a glass softening point or higher in a heating furnace, cooled, and bent into a desired shape. The concealing layer 3 is completely baked on the glass plate by being heated and cooled in the bending step.
The glass plate 2 formed into a desired shape is formed by stacking the vehicle inner glass 2b and the vehicle outer glass 2a with an intermediate film 2c made of polyvinyl butyral interposed therebetween, and thermocompression bonding in an autoclave. The vehicle window glass 1 shown in FIG. 2 is obtained.

As described above, according to the vehicle window glass 1 described above, the end portions 3a ₁ and 3b _{1 of} the first hiding layer 3a and the second hiding layer 3b constituting the hiding layer 3 are overlapped with each other, respectively. Since the contour lines 3a ₄ , 3b ₃ on the inner peripheral side of each other intersect each other, the overlapping portion of the first and second concealing layers 3a and 3b becomes inconspicuous, and the aesthetics of the vehicle window glass 1 are improved. Can do.
In addition, the first concealing layer 3a and the second concealing layer 3b have an intersecting angle between the inner peripheral contour lines 3a ₄ and 3b ₃ in the range of 5 ° to 30 °, so that the first concealing layer 3a and the first concealing layer 3a The overlapping portion of the two concealing layers 3b can be made less noticeable.
Further, as the end 3a ₁ of the first concealing layer 3a is approached, the width of the first concealing layer 3a is gradually reduced, and the end 3b ₁ of the second concealing layer 3b is overlapped with the narrowed portion. Therefore, even if the relative positions of the first and second concealing layers 3a and 3b are slightly shifted, the width of the concealing layer 3 in the connecting portion 3c is not significantly increased. The overlapping portion of the two hiding layers 3b becomes inconspicuous, and the aesthetics of the vehicle window glass 1 can be improved.

In the above description, the example in which the concealing layer 3 is baked by using the heating in the bending process of the laminated crow is shown. However, in a flat glass plate without the bending process, the baking process is performed in a heating process independent of the bending process. Alternatively, when the vehicle glass of the present invention is applied to tempered glass, the concealing layer 3 may be baked using a heating / cooling step of the tempered glass. When an independent heating process is provided, the degree of freedom in production conditions is increased and the optimum heat treatment conditions for the concealing layer 3 can be selected. In the case where the other heat treatment process and the baking process of the concealing layer 3 are combined, it is possible to contribute to improvement of productivity and save energy.
Moreover, the glass for vehicles which concerns on this invention is applicable to tempered glass, multilayer glass, glass with a metal wire other than a laminated glass. Also, inorganic glass is suitable for the material, but by changing the heat treatment conditions, so-called organic transparent resin glasses such as polycarbonates, polystyrenes, polymethyl methacrylates, etc., or a laminate of these alone or in combination The present invention can also be applied.

"Second example of vehicle window glass"
FIG. 4 shows a main part of a second example of the window glass for a vehicle. FIG. 4A is an enlarged plan view of the window glass for a vehicle as viewed from the surface on the vehicle interior side, and FIG. 4B is an enlarged cross-sectional view corresponding to the line CC ′ in FIG. .
As shown in FIGS. 4 (a) and 4 (b), the first concealment layer 13a in the vehicle window glass 11 of the present example is substantially the same as the outer contour line 13a ₂ and the outer contour line 13a _2. It is defined by an outline 13a ₃ parallel inner circumferential side. The outer contour line 13a ₂ includes an inclined contour line 13a _{4 that} is inclined so as to gradually approach the inner contour line 13a ₃ at the end 13a ₁ of the first concealing layer 13a. Yes. The first shielding layer 13a with this configuration, in the portion other than the end portion 13a ₁ near a substantially constant width, which gradually narrow the width at the end 13a ₁ neighborhood.
Next, the second shielding layer 13b in the vehicle glazing 11 of the present embodiment is defined by the same manner as the first example, the contour line 13b ₂ on the outer circumferential side, a contour line 13b ₃ of the inner peripheral side . The inner peripheral side contour line 13b ₃ is substantially parallel to the outer peripheral side contour line 13b ₂ , so that the width of the second concealing layer 13a is substantially constant throughout the vicinity of the end portion 13b _1. ing.
The width at the end portion 13a ₁ other than the portion of the first shielding layer 13a is set to approximately the same width as the width of the second shielding layer 13b.

  Moreover, the 2nd concealment layer 13b of this example is extended along the side 2f and lower side in the figure of the vehicle interior glass 2b. On the other hand, the first concealment layer 13a extends along the upper side 2e in the figure of the vehicle interior glass 2b, but after passing through the corner portion 13d, the first glass layer 13a is formed on the vehicle interior glass 2b. Slightly inclined inward. This inclination angle is in the range of 5 ° to 30 ° with respect to the extending direction of the second masking layer 13b.

The first shielding layer 13a and a second shielding layer 13b, each end _13a 1, 13b ₁ are superimposed on each other in the connecting portion 13c. At this time, the most advanced portion 13a ₅ of the first shielding layer 13a is disposed on the second shielding layer 13b. Further, when the end portions 13a ₁ and 13b ₁ are overlapped, the contour line 13a ₃ on the inner peripheral side of the first masking layer 13a and the contour line 13b ₃ on the inner peripheral side of the second masking layer 13b are mutually connected. Crossed. The intersection angle β of each of the contour lines 13a ₃ and 13b ₃ at this time is in the range of 5 ° to 30 °, similar to the inclination angle of the first shielding layer 13a with respect to the side edge 2f in the figure of the vehicle interior glass 2b. Yes.
On the other hand, the inclined contour 13a ₄ of the outer peripheral side of the first shielding layer 13a is layered in parallel to the contour line 13b ₂ of the outer peripheral side of the second shielding layer 13b, also, the hiding layer 13a, 13b outer peripheral side of the contour of the The lines 13a ₂ and 13b ₂ are not intersected with each other, and a step 13c ₁ is formed between the contour lines 13a ₂ and 13b ₂ .

Further, as shown in FIG. 4B, a dark primer layer 4 is formed on the outer peripheral side of the concealing layer 13 of the vehicle interior glass 2b, as in the first example. The primer layer 4 is composed of a mixture of a dark pigment and a silane coupling agent. The primer layer 4 of the dark, by forming the outer peripheral side of the dark concealment layer 13, the outer peripheral side of the contour line 13b of the contour line 13a ₂ of the outer peripheral side of the first shielding layer 13a second shielding layer 13b The level difference 13c ₁ between ₂ is less visible.

As described above, according to the vehicle window glass 11 described above, as in the case of the first example, the end portions 13a _{1 of} the first concealment layer 13a and the second concealment layer 13b that constitute the concealment layer 13, 13b ₁ are overlapped with each other and the inner peripheral contour lines 13a ₃ and 13b ₃ intersect each other, so that the overlapping portion of the first concealment layer 13a and the second concealment layer 13b becomes inconspicuous. The aesthetics of the window glass 11 can be improved.

  In addition, the glass 11 for vehicles of this example can be manufactured similarly to the glass for vehicles of the 1st example.

"Third example of vehicle window glass"
FIG. 5 shows a main part of a third example of the vehicle window glass. FIG. 5A is an enlarged plan view of the vehicle window glass as viewed from the surface on the vehicle interior side, and FIG. 5B is an enlarged cross-sectional view corresponding to the line DD ′ of FIG. .
As shown in FIGS. 5 (a) and 5 (b), the first concealment layer 23a in the vehicle window glass 21 of the present example is formed by an outer peripheral side contour line 23a ₂ and an inner peripheral side contour line 23a ₃ . It is partitioned. The outer peripheral side of the contour 23a ₂ extends along the drawing the upper side 2e and side edge 2f of the interior-side glass. Further, the inner peripheral side contour line 23a ₃ is located on the inner side of the interior side glass 2b with respect to the upper side side contour line 23a ₄ extending along the upper side 2e in the figure of the vehicle interior side glass and the side side 2f in the figure. It is composed of an inclined contour line 23a ₅ extending slightly inclined. The inclination angle of the inclined contour 23a ₅ is in the range of 5 ° to 30 ° with respect to the extending direction of the second shielding layer 23b. Accordingly, the first shielding layer 23a is a portion other than the end portion 23a ₁ near a substantially constant width, the corner portion width at 23d is increased, then the width according to approaches the vicinity of the end portion 23a ₁ It is getting narrower gradually.

Next, as in the first example, the second concealment layer 23b in the vehicle window glass 21 of the present example is partitioned by an outer peripheral side contour line 23b ₂ and an inner peripheral side contour line 23b ₃ . . The inner peripheral side contour line 23b ₃ is substantially parallel to the outer peripheral side contour line 23b ₂ , so that the width of the second concealing layer 23b is substantially constant throughout the vicinity of the end 23b _1. ing. Moreover, the 2nd concealment layer 23b of this example is extended along the side 2f and lower side in the figure of the vehicle interior glass 2b.
Furthermore, the width at the end portion 23a ₁ other than the portion of the first shielding layer 23a is set to approximately the same width as the width of the second shielding layer 23b.

The first shielding layer 23a and a second shielding layer 23b, each end _23a 1, 23b ₁ are superimposed on each other in the connecting portion 23c. At this time, the most advanced portion 23a ₆ of the first shielding layer 23a is disposed on the second shielding layer 23b. Further, when the end portions 23a ₁ and 23b ₁ are overlapped, the inclined contour line 23a ₅ of the first shielding layer 23a and the contour line 23b ₃ on the inner peripheral side of the second shielding layer 13b intersect each other. . The intersection angle γ of each of the contour lines 23a ₅ and 23b ₃ at this time is 5 ° to 30 similarly to the inclination angle of the inclined contour line 23a ₅ of the first concealing layer 23a with respect to the side edge 2f in the figure of the vehicle interior glass 2b. It is in the range of °.
On the other hand, the contour lines 23a ₂ and 23b ₂ on the outer peripheral side of the respective concealing layers 23a and 23b do not cross each other, and a step 23c ₁ is formed between the respective contour lines 23a ₂ and 23b ₂ .

Further, as shown in FIG. 5B, a dark primer layer 4 is formed on the outer peripheral side of the concealing layer 23 of the vehicle interior glass 2b, as in the first example. The primer layer 4 is composed of a mixture of a dark pigment and a silane coupling agent. The primer layer 4 of the dark, by forming the outer peripheral side of the dark concealment layer 23, the outer peripheral side of the contour line 23b of the contour line 23a ₂ of the outer peripheral side of the first shielding layer 23a second shielding layer 23b step 23c ₁ between the ₂ is less visible.

As described above, according to the vehicle window glass 21 described above, as in the case of the first example, the first concealing layer 23a and the end portions 23a ₁ of the second concealing layer 23b constituting the concealing layer 23, 23b ₁ are overlapped with each other and the inner peripheral contour lines 23a ₅ and 23b ₃ intersect each other, so that the overlapping portion of the first concealment layer 23a and the second concealment layer 23b becomes inconspicuous. The aesthetics of the window glass can be improved.

  In addition, the glass 21 for vehicles of this example can be manufactured similarly to the glass for vehicles of the 1st example.

"Fourth example of vehicle window glass"
FIG. 6 shows a fourth example of the vehicle window glass of the present embodiment. FIG. 6A is a plan view of the vehicle window glass of the present example as viewed from the surface on the vehicle inner side, and FIG. 6B is an enlarged view of the vehicle window glass of the present example as viewed from the surface on the vehicle inner side. FIG. 6C is an enlarged cross-sectional view corresponding to the line EE ′ of FIG. 6B.
The vehicle glass 31 shown in FIG. 6 is generally configured by a glass body 2 that is a so-called laminated glass, and a substantially annular concealing layer 33 formed on the peripheral edge of the glass body 2.

As shown in FIG. 6A, the concealment layer 33 is formed in an annular shape on the peripheral edge 2d of the vehicle interior glass 2b. The concealing layer 33 includes a first concealing layer 33a formed along the upper side 2e side of the glass body 2 in the figure, and a first concealing layer 33a formed along the side side 2f side and the lower side 2g side of the glass body 2 in the figure. And 2 concealing layers 33b. The first and second masking layers 33a and 33b are connected to each other at two connecting portions 33c, thereby forming an annular masking layer 33 having four corner portions 33d. As shown in FIGS. 6 (a) and 6 (b), the connecting portion 33c, which is the overlapping position of the end portions 33a ₁ and 33b ₁ of the _first and second shielding layers 33a and 33b, is an annular shielding layer. 3 corner portions 33d. The first and second concealing layers 33a and 33b are made of a dark ceramic paste as in the first to third examples.

Further, as shown in FIGS. 6B and 6C, the first concealing layer 33a in plan view is partitioned by an outer contour line 33a ₂ and an inner contour line 33a _3. Yes. An outer peripheral side contour line 33a ₂ is formed along the upper side 2e and the side side 2f of the vehicle interior side glass 2b. On the other hand, the inner peripheral contour line 33a ₃ is formed substantially in parallel with the upper side 2e of the vehicle interior glass 2b. With this configuration, the width of the first hiding layer 33a is substantially constant along the longitudinal direction.
Next, the second concealing layer 33b in plan view is partitioned by an outer peripheral side contour line 33b ₂ and an inner peripheral side contour line 33b ₃ as in the case of the first concealing layer 33a. The contour line 33b ₃ on the inner peripheral side is substantially parallel to the contour line 33b ₂ on the outer peripheral side, whereby the width of the second concealing layer 33b is substantially constant over the entire area including the vicinity of the end portion 33b _1. ing.

The first shielding layer 33a and a second shielding layer 33b, each end _3a 1, 3b ₁ are superimposed on each other in the connecting portion 33c. Further, when the end portions 33a ₁ , 33b ₁ are overlapped, the contour line 33a ₃ on the inner peripheral side of the first concealing layer 33a and the contour line 33b ₃ on the inner peripheral side of the second concealing layer 33b are mutually connected. Is crossed. At this time, the intersecting angle δ of the contour lines 33a ₃ and 33b ₃ is in the range of 70 ° to 120 °.
On the other hand, the contour line 33a ₂ on the outer peripheral side of the first concealing layer 33a and the contour line 33b ₂ on the outer peripheral side of the second concealing layer 33b do not cross each other, and a step 33c is formed between the contour lines 33a ₂ and 33b ₂ . ₁ is formed.

Further, a dark primer layer 4 is formed on the outer peripheral side of the concealing layer of the vehicle interior glass 2b as in the first to third examples. Since the primer layer 4 contains the silane coupling agent, the adhesive strength between the adhesive and the vehicle window glass 31 is improved. Also the dark primer layer 4, by forming the outer peripheral side of the dark concealment layer 33, the outer peripheral side of the contour line 33b of the contour line 33a ₂ of the outer peripheral side of the first shielding layer 33a second shielding layer 33b The level difference 33c ₁ between the _two is less visible.

As described above, in the connecting portion 33c between the first and second shielding layers 33a and 33b, the contour lines 33a ₃ and 33b ₃ on the inner peripheral side of the shielding layers 33a and 33b intersect each other. The intersection angle δ is in the range of 70 ° to 120 °, and the connecting portion 33c where the contour lines 33a ₃ and 33b ₃ intersect is located at the corner portion 33d, so the intersection angle δ is 70 ° to 120 °. Even if it is relatively large, it does not cause a sense of incongruity, and this makes it possible to enhance the aesthetics of the vehicle window glass 31.

  In addition, the glass 31 for vehicles of this example can be manufactured similarly to the glass for vehicles of the 1st example.

"Fifth example of vehicle window glass"
In FIG. 7, the principal part of the window glass for vehicles of the 5th example is shown. The vehicle window glass 41 of this example has the same configuration as the vehicle glass sheet of the fourth example, except that the shape of the first hiding layer 43a is slightly different from the shape of the first hiding layer 33a of the fourth example. Therefore, also in the glass for vehicles of this example, aesthetics can be improved like the 4th example.

  In addition, the glass 41 for vehicles of this example can be manufactured similarly to the glass for vehicles of the 1st example.

"Sixth example of vehicle window glass"
In FIG. 8, the principal part of the window glass for vehicles of the 6th example is shown. The vehicle window glass 51 of this example has the same configuration as the vehicle glass sheet of the fourth example, except that the shape of the first hiding layer 53a is slightly different from the shape of the first hiding layer 33a of the fourth example. Therefore, also in the glass for vehicles of this example, aesthetics can be improved like the 4th example.

  In addition, the glass 51 for vehicles of this example can be manufactured similarly to the glass for vehicles of the 1st example.

"Seventh example of vehicle window glass"
FIG. 9 shows a seventh example of the vehicle window glass of this embodiment. FIG. 9A is a plan view of the vehicle window glass according to the present example as viewed from the surface on the inside of the vehicle, and FIG. 9B illustrates the main part of the vehicle window glass according to the present example from the surface as the inside of the vehicle. FIG.
The glass 61 for vehicles shown to Fig.9 (a) is applied to the rear glass of a motor vehicle, and the hot-wire pattern 63 of anti-fogging is formed in the vehicle inner surface of tempered glass. The heat ray pattern 63 includes bus bars 63a and 63b provided substantially parallel to the left and right ends of the rear glass, and a plurality of antifogging heating element wires 63d that connect the bus bars 63a and 63b. The bus bar 63a is located on the upper side in the figure from the line GG ′, and the bus bar 63b is located on the lower side in the figure from the line GG ′.
As shown in FIG. 9A, the connecting portion 63c, which is the overlapping position of the end portions 63a ₁ and 63b ₁ of the bus bars 63a and 63b, connects the connecting portions 3c and 3c of the annular concealing layer 3 to each other. 'It is placed on the line.

  Each of the bus bars 63a and 63b is composed of a conductive print (so-called silver pre). This conductive print is subjected to a drying process and a baking process after applying an ink in which a conductive material such as metal powder, a glass frit, a refractory filler, and a resin such as ethyl cellulose are dispersed in a solvent to the vehicle interior glass 2b. Thus, it is formed by being baked on the vehicle interior glass 2b.

As shown in FIG. 9 (b), the bus bar 63a in a plan view, in part other than the end portion 63a ₁ near but its width is substantially constant, in the end 63a ₁ near become its width gradually narrows Yes. On the other hand, the bus bar 63b in plan view is its width throughout including the end portion 63b ₁ near are substantially constant. The width at the end portion 63a ₁ part other than the vicinity of the bus bar 63a is set to approximately the same width as the total width of the bus bar 63 b.

Then, the bus bars 63a and 63b, each end _63a 1, 63b ₁ are superimposed on each other in the connecting portion 63c. At this time, the inclined contour 63a ₄ that is a part of the inner contour 63a ₃ of the bus bar 63a and the inner contour 63b ₃ of the bus bar 63b intersect each other. The intersection angle of each contour line at this time is in the range of 5 ° to 30 °.

With the above configuration, the contours 63a ₄ and 63b ₃ inside the bus bars 63a and 63b intersect each other in the connecting portion 63c, and the intersection angle is in the range of 5 ° to 30 °. Even if the relative position of 63b is slightly deviated, a clear step is not formed on the inner peripheral side of the connecting portion 63c, whereby the aesthetics of the vehicle window glass 61 can be enhanced.
In addition, since the overlapping area of the connecting portions 63c of the bus bars 63a and 63b is widened, loss of current flowing through the hot wire pattern 63 is less likely to occur.

Next, the vehicle glass 71 shown in FIG. 9C is applied to a glass roof of an automobile, and shows an example in which an electrode pattern and a transparent conductive film are formed on the inner surface of the tempered glass. ing. On the inner surface of the vehicle glass 71 shown in FIG. 9 (c), it is formed between the bus bars 73a and 73b and the bus bars 73a and 73b provided substantially in parallel along the longitudinal direction of the vehicle glass 71. The transparent conductive film 74 is provided. The connecting portion 73c, which is the overlapping position of the end portions of the bus bars 73a and 73b, is arranged on the line HH ′ connecting the connecting portions 3c and 3c of the annular concealing layer 3.
The connecting portion 73c in FIG. 9C can have the same configuration as that in FIG. 9B, and has the same effect.

The tempered glass constituting the vehicle glass 61 and 71 of this example can be manufactured by a known method, and the heat ray pattern 63 is printed before the bending process and pre-baked by drying, and heat treatment in the bending process. At the same time, it can be baked onto a glass plate.
Moreover, although the example which used the tempered glass for the glass for vehicles was shown here, the bilayer glass which affixed the functional film on the tempered glass can also be used.

  The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. The vehicle glass of the present invention can be applied not only to a front glass but also to a rear glass, a side glass, and a sunroof glass. Furthermore, the vehicle glass of the present invention may be used not only for automobiles but also for window glass of railway vehicles, windshield glass for motorcycles, and the like. Further, it may be applied to glass for display.

FIG. 1 is a view showing a first example of a vehicle window glass according to an embodiment of the present invention, wherein (a) is a plan view of the vehicle window glass as viewed from the inside of the vehicle, and (b) is ( It is sectional drawing corresponding to the AA 'line of a). 2A and 2B are diagrams showing the main part of the vehicle window glass of FIG. 1, wherein FIG. 2A is an enlarged plan view of the vehicle window glass as viewed from the inner surface, and FIG. It is an expanded sectional view corresponding to the BB 'line of). FIG. 3 is a plan view of a screen printing plate used for forming a concealing layer of the vehicle window glass of FIG. 1, wherein (a) is a schematic plan view of the first printing plate, and (b) is a second drawing. It is a plane schematic diagram of a printing plate. FIG. 4 is a view showing a second example of the window glass for a vehicle which is an embodiment of the present invention, and (a) is an enlarged plan view of the main part of the window glass for the vehicle as viewed from the surface on the vehicle interior side. (B) is an enlarged sectional view corresponding to the CC ′ line of (a). FIG. 5 is a view showing a third example of the vehicle window glass according to the embodiment of the present invention, and FIG. 5A is an enlarged plan view of the main part of the vehicle window glass as viewed from the surface on the vehicle interior side. (B) is an enlarged sectional view corresponding to the line DD ′ in (a). FIG. 6 is a view showing a fourth example of the vehicle window glass according to the embodiment of the present invention, in which (a) is a plan view of the vehicle window glass as viewed from the inner surface, ) Is an enlarged plan view showing the main part of the vehicle window glass, and (c) is a cross-sectional view corresponding to the line EE ′ of (b). FIG. 7 is an enlarged plan view showing a main part of a fifth example of the vehicle window glass according to the embodiment of the present invention. FIG. 8 is an enlarged plan view showing a main part of a sixth example of the vehicle window glass according to the embodiment of the present invention. FIG. 9 is a view showing a seventh example of the vehicle window glass according to the embodiment of the present invention, and FIG. 9A is a plan view of the vehicle window glass as viewed from the surface on the vehicle interior side. ) Is an enlarged plan view showing the main part of the vehicle window glass, and (c) is a plan view showing another example of the vehicle glass. FIG. 10 is a plan view of a screen printing plate used for forming a printing layer of a conventional vehicle window glass, in which (a) is a schematic plan view of a first printing plate, and (b) is a second printing plate. It is a plane schematic diagram of a plate. FIG. 11 is a view showing a conventional window glass for a vehicle, in which (a) is a plan view of the vehicle window glass as viewed from the surface on the inside of the vehicle, and (b) is FF ′ of (a). It is sectional drawing corresponding to a line. 12A and 12B are diagrams showing the main part of the vehicle window glass of FIG. 11, wherein FIG. 12A is an enlarged plan view of the vehicle window glass as viewed from the inner surface, and FIG. It is an expanded sectional view corresponding to the GG 'line of).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 11, 21, 31, 41, 51, 61 ... Window glass for vehicles, 2 ... Glass main body, 2d ... Perimeter, 3, 13, 23, 33 ... Concealment layer, 3a, 13a, 23a, 33a, 43a, 53a ... first shielding layer, 3b, 13b, 23b, 33b , 43b, 53b ... second shielding _{layer, 3a 1, 13a 1, 23a} 1, 33a 1 ... end of the first shielding _layer, 3b 1, _13b 1, 23b ₁ , 33b ₁ ... end of second concealing layer, 3a ₃ , 13a ₃ , 23a ₃ , 33a ₃ ... contour line on inner peripheral side of first concealing layer, 3b ₃ , 13b ₃ , 23b ₃ , 33b ₃ ... Contour line on the inner peripheral side of the second shielding layer, 3a ₄ ... Inclined contour line (contour line on the inner peripheral side of the first shielding layer)

Claims (7)

A vehicle window glass in which a substantially annular concealing layer is formed on the peripheral edge of the glass body,
The masking layer has a substantially strip-shaped first masking layer and a strip-shaped second masking layer separately printed on the glass body, and an end of the first masking layer and an end of the second masking layer, A window glass for a vehicle in which the contour line on the inner peripheral side of the first concealing layer and the contour line on the inner peripheral side of the second concealing layer intersect each other.   2. The vehicle window according to claim 1, wherein an intersection angle between an inner peripheral line of the first concealing layer and an inner peripheral line of the second concealing layer is in a range of 5 ° to 30 °. Glass.   2. The vehicle window according to claim 1, wherein an intersection angle between an inner peripheral line of the first concealing layer and an inner peripheral line of the second concealing layer is in a range of 70 ° to 120 °. Glass. A method for manufacturing a window glass for a vehicle in which a substantially annular concealing layer is formed on the peripheral edge of the glass body,
When forming the concealing layer by screen-printing a substantially strip-shaped first concealing layer and a substantially strip-shaped second concealing layer on the glass body, an end of the first concealing layer and the second concealing layer are formed. A method of manufacturing a window glass for a vehicle in which the end portion of the first concealing layer is overlapped and the contour line on the inner peripheral side of the first concealing layer intersects the contour line on the inner peripheral side of the second concealing layer.   5. The vehicle window according to claim 4, wherein an intersection angle between an inner peripheral side contour line of the first concealing layer and an inner peripheral side contour line of the second concealing layer is in a range of 5 ° to 30 °. Glass manufacturing method.   5. The vehicle window according to claim 4, wherein an intersection angle between an inner peripheral side contour line of the first concealing layer and an inner peripheral side contour line of the second concealing layer is in a range of 70 ° to 120 °. Glass manufacturing method.   The screen printing plate used for the manufacturing method of the window glass for vehicles in any one of Claims 4-6.

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