JPH07292476A - Film formation on one surface of planar body and device therefor - Google Patents

Abstract

PURPOSE:To attract a planar body consisting of sheet glass, etc., for side windows to a masking plate simply by reducing the pressure in the sealing space between this masking plate and the planar body by bringing the planar body into contact with a sealing part. CONSTITUTION:This device is provided with the masking plate 12 to cover one surface of the planar body consisting of the sheet glass 18 for side windows, etc., and the one surface of the masking plate 12 is provided with the sealing part 14. The sealing part 14 comes into contact with the entire peripheral edge of the planar body and further, the sealing part 14 seals the space 19 between the masking plate 12 and the planar body. A pressure reducing means 16 reduces the pressure in the space 19 and attracts the planar body to the masking plate 12. As a result, the easy masking of the one surface of the planar body is made possible and the film forming operation on the one surface of the planar body is efficiently carried out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention masks one side of a plate-like body, and only one side opposite to the side masked by a dipping method, a spray method, etc.
The present invention relates to a film-forming method and apparatus for a single surface of a plate-like body for forming functional films such as a heat-reflective film and an antireflection film.

[0002]

2. Description of the Related Art Conventionally, a water-repellent film, U
When forming a functional film such as a V-cut film, a heat ray reflection film, an antireflection film, or a conductive film, a dipping film formation method by a sol-gel method or a spray method is known. When these functional films are formed on one side of the plate-shaped body, the other side of the plate-shaped body is masked with a masking tape and only one side is formed, and after the film formation is completed, the masking is performed. Remove the tape from the other side. In this way, when forming a film on only one side of the plate-shaped body, it is necessary to mask the other side of the plate-shaped body with a masking tape before the film forming step. The masking tape with one side masked must be removed after the film formation process. Therefore, there is a problem that the efficiency of the film forming operation is low.

On the other hand, Japanese Patent Application Laid-Open No. 5-59563 discloses a film forming method for forming a film on only one surface of a plate-like body such as a plate glass without masking with a tape. In this film forming method, the space formed along the plate-like body is maintained in a vacuum-sealed state, the plate-like body is adsorbed on both sides of the packing member, and dipping film formation is performed only on one surface of the plate-like body. Is. According to this film forming method, since it is not necessary to perform the masking work with the tape before the dipping process and the removing work of the masking tape after the dipping process, the film forming work can be performed efficiently.

[0004]

However, the film forming method disclosed in Japanese Patent Laid-Open No. 5-59563 can be applied to a flat plate, but is formed into a double curved surface such as a side window plate glass. Flat glass (that is, flat glass that has been bent in the vertical and horizontal directions, respectively)
Also, there is a problem that it cannot be applied to a curved plate-shaped body formed into another curved surface.

The present invention has been made in view of the above circumstances, and is capable of efficiently performing a film forming operation on one surface of a plate-like body, particularly a curved plate-like body. It is an object to provide a method and an apparatus thereof.

[0006]

According to the present invention, in order to achieve the above object, one side of a plate-shaped body is brought into contact with a masking plate provided with a seal portion corresponding to the outer shape of the plate-shaped body, The space between the masking plate and one surface of the plate-like body is sealed by the seal portion, and in this state, the sealed space is depressurized to adsorb the plate-like body to the masking plate, The method for forming a film on one surface of a plate-like body, characterized in that the film is formed on one surface on the opposite side to the one surface, and an apparatus for carrying out this method.

[0007]

According to the present invention, the masking plate capable of covering one side of the plate-shaped body is provided, and the seal portion is provided on one side of the masking plate. The seal portion is formed so as to contact the entire peripheral edge of the plate-shaped body, and seals the space between the masking plate and the plate-shaped body. The decompression means decompresses the sealed space and adsorbs the plate-shaped body. In this way, the plate-shaped body can be adsorbed to the masking plate simply by bringing the plate-shaped body into contact with the seal portion and depressurizing the space between the masking plate and the plate-shaped body. It can be done easily.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method and apparatus for forming a film on one side of a plate-like body according to the present invention will be described in detail below with reference to the accompanying drawings. In the examples, the case of forming a water-repellent film on a side window plate glass will be described as an example. FIG. 1 is a perspective view of a plate-shaped body single-sided film forming apparatus according to the present invention, FIG. 2 is a plan view showing a state in which plate glass is adsorbed by a plate-shaped body single-sided film forming apparatus, and FIG. It is a figure. As shown in FIG. 1, the film forming apparatus 10 for one surface of a plate-shaped body includes a masking plate 12, a seal portion 14, and a pressure reducing means 16. The masking plate 12 is formed in a substantially pentagonal shape similar to the shape of the side window plate glass 18 of an automobile, and the masking plate 12 is formed larger than the side window plate glass 18.

Further, the masking plate 12 is formed into a double curved surface like the side window plate glass 18.
An opening hole 12A is formed substantially in the center of the masking plate 12, and a check valve 20 described later (see FIG. 3) is formed in the opening hole 12A.
Is provided. Projecting pieces 21, 21 are formed on the upper end of the masking plate 12, and an opening hole 21A is formed in the projecting piece 21. The masking plate 12 is, for example, F
It is formed of RP (a plate material in which a glass fiber reinforcing material is laminated with a thermosetting resin).

The seal portion 14 is formed of, for example, soft rubber in a frame body, and the frame body is formed in a shape substantially similar to the outer periphery of the side window plate glass 18. The seal portion 14 is attached to the back surface of the masking plate 12. The outer periphery of the seal portion 14 is formed larger than the outer periphery of the side window plate glass 18, and the inner periphery of the seal portion 14 is formed smaller than the outer periphery of the side window plate glass 18.
Therefore, the seal portion 14 is the side window plate glass 18
The outer peripheral edge of the (see FIG. 2). Thereby, the closed space 19 is formed by the masking plate 12, the seal portion 14, and the side window plate glass 18 (see FIG. 3).

The pressure reducing means 16 has the above-described check valve 20, and the check valve 20 is attached to the opening hole 12A of the masking plate 12. A left end of a hose 22 is detachably supported by the check valve 20, and a vacuum pump 24 is connected to a right end of the hose 22. Therefore, the vacuum pump 24 is connected to the closed space 19 via the hose 22 and the check valve 20. As a result, when the vacuum pump 24 operates, the closed space 19 is depressurized, and the hose 22 can be easily removed from the check valve 20 after depressurizing the closed space 19. In this case, since the check valve 20 is attached to the opening hole 12A, the closed space 19 is maintained in a reduced pressure state.

Further, in FIG. 1, reference numeral 25 is a rubber button, and the button 25 is used to close holes 18A, 18A ... Formed in the corners of the side window plate glass 18 as needed. If the seal portion 14 is formed so that the holes 18A, 18A ... Of the side window plate glass 18 are located on the side surfaces of the seal portion 14, the holes 18A, 18A ... Can be sealed with.

A plurality of the plate-shaped body single-sided film forming apparatus 10 configured as described above are suspended in a dipping-type film forming apparatus 30 shown in FIG. 4 and immersed in a liquid tank 44. A ball screw 34 is rotatably erected on the frame 32 of the dipping type film forming apparatus 30, and the ball screw 34 is connected to a drive motor 36 so as to be able to transmit a rotational force. An elevating body 38 is screwed to the ball screw 36, and a lifting bar 40 is attached to the elevating body 38. The hanging hooks 28, 28 are attached to both ends of the hanging bar 40, and the hanging hooks 28, 28 have opening holes 21A, 21 of the projecting pieces 21, 21.
Inserted in A. As a result, the film-forming apparatus 1 for one surface of the plate-like body
0 is connected to the elevating body 38, and when the elevating body 38 is lowered in this state, the film forming apparatus 10 on one surface of the plate-shaped body is immersed in the liquid tank 44. Incidentally, reference numeral 46 in FIG. 4 denotes an operation unit of the dipping type film forming apparatus 30.

Next, a case will be described in which the film forming apparatus 10 on one surface of the plate-like body is immersed in the liquid tank 44 of the dipping type film forming apparatus 30 to form a water-repellent film only on the surface of the side window plate glass 18. To do. First, the side window plate glass 18 is placed on the surface of the seal portion 14, and the vacuum pump 24
To operate. As a result, the closed space 19 is decompressed and the side window plate glass 18 is adsorbed to the seal portion 14. Next, the hose 22 is removed from the check valve 20, and the film forming apparatus 10 on one side of the plate-shaped body is set to the dipping type film forming apparatus 30.
To be able to move up and down.

That is, the protruding piece 21 of the masking plate 12,
The opening holes 21A, 21A formed in 21 are used to suspend the hook 2
Suspend to 8. Next, the operating portion 46 is operated to rotate the drive motor 36 in the forward direction to rotate the ball screw 34 in the forward direction. As a result, the elevating body 38 descends and the film-forming apparatus 1 for one surface of the plate-shaped body
0 is immersed in the liquid tank 44. After the masking plate 12 is immersed in the liquid tank 44 for a certain period of time, the drive motor 36 is rotated in the reverse direction to be immersed in the liquid tank 44.
Is pulled up from the liquid tank 44. As a result, the water-repellent film is formed only on one surface of the side window plate glass 18 adsorbed by the film forming apparatus 10 on one surface of the plate-shaped body.

In the above embodiment, the case where the water repellent film is formed on one surface of the side window plate glass 18 has been described, but the invention is not limited to this, and a UV cut film, a heat ray reflective film, an antireflection film, a conductive film, or the like may be used. It can be applied when a thin film for other uses is formed on one side of a side window plate glass. Further, although the case where the water repellent film is formed on one surface of the side window plate glass 18 has been described in the above embodiment, the present invention is not limited to this, and the film is formed on one surface of the automobile front plate glass or other general plate glass. It may also be used in the case of forming a film, or may be used in the case of forming a film of a resin plate or a metal plate.

In the above embodiment, the case where the film-forming apparatus for one surface of the plate-like body according to the present invention is applied to the dipping-type film-forming apparatus in which a plurality of plate-like materials are simultaneously immersed in the liquid tank has been described.
The present invention is not limited to this, and the plate-shaped body single-sided film forming apparatus according to the present invention can be applied to other film forming apparatuses such as a spray type film forming apparatus.

[0018]

As described above, according to the method for forming a film on one surface of a plate-like body and the apparatus therefor according to the present invention, the plate-like body is brought into contact with the seal portion so that the space between the masking plate and the plate-like body is increased. Since the plate-like body can be adsorbed to the masking plate only by decompressing the closed space with the decompressing means, one-side masking of the plate-like body can be easily performed. Thereby, the film forming operation on one surface of the plate-shaped body can be efficiently performed.

[Brief description of drawings]

FIG. 1 is a perspective view of a film forming apparatus for one surface of a plate-like body according to the present invention.

FIG. 2 is a front view showing a state in which a side window plate glass is adsorbed by a plate-shaped body single-sided film forming apparatus according to the present invention.

3 is a sectional view taken along line AA of FIG.

FIG. 4 is a perspective view of a dipping type film forming apparatus in which the film forming apparatus for one surface of a plate-like body according to the present invention is immersed in a water repellent liquid tank.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Plate-forming device on one side of plate-like body 12 ... Masking plate 14 ... Sealing part 16 ... Pressure reducing means 18 ... Side window plate glass (plate-like body) 19 ... Space between masking plate and plate-like body

Continuation of the front page (51) Int.Cl. ⁶ Identification number Internal reference number FI Technical indication location G02B 1/10 (72) Inventor Takuya Sakagami 2-4 Tamachi, Kawasaki-ku, Kanagawa Prefecture Asahi Glass Keihin Co., Ltd. in the factory

Claims (2)

[Claims] 1. A masking plate provided with a seal portion corresponding to the outer shape of a plate-shaped body is brought into contact with one surface of the plate-shaped body to form a space between the masking plate and one surface of the plate-shaped body. It is characterized in that it is sealed by a sealing part, and in this state, the sealed space is decompressed to adsorb the plate-shaped body to the masking plate, and one surface of the plate-shaped body opposite to one side is formed into a film. Method for forming film on one side of plate-like body 2. A masking plate that covers one side of a plate-shaped body, and a masking plate and the plate-shaped body that are provided on a surface of the masking plate that faces the plate-shaped body and contact the entire peripheral edge of the plate-shaped body. A sealing part for sealing a space between the body and a decompression means for decompressing the sealed space to adsorb the plate-like body to the masking plate; Deposition apparatus.