JP3951204B2 - Recorded object holding method - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a method for holding a recording material such as a film or a photosensitive material.
[0002]
[Prior art]
Conventionally, a patent No. 1613317 by the same applicant, in which a thin plate having a small hole for suction is bonded together by providing an air passage, and air between the negative and glass is sucked from the side edge of the film to adsorb the negative to the glass plate. In addition, there are Japanese Patent Application No. Sho 63-317257 and Japanese Patent Application No. 2-63462. As a further improvement, there is a negative plane holding method (Japanese Patent Laid-Open No. 7-239516) by the same applicant. Sponge at a position corresponding to the side edge of the negative, with a base plate that has a sponge mask of various negative sizes and can be attached and removed freely, and a pin is provided to keep the gap between the positioning and the base body constant. This is a technique in which residual air between the negative and the glass is discharged from a small hole formed in the mask, and the negative is adsorbed to the glass. By replacing the mask plate according to the present invention, the negative can be adsorbed to the glass according to the size of the negative.
[0003]
[Problems to be solved by the invention]
In view of work efficiency, it was necessary to adsorb the film to the base plate more rapidly than the conventional adsorption method. In addition, when a film is placed on a base plate such as glass and a mask plate is placed on top of the film and sucked, and the film is adsorbed on the glass, marks for alignment are placed on the glass according to various sizes. If you put it on, the mark will be reflected and you will not be able to mark it. For this reason, there is a problem that it is difficult to align the film when the film is placed on the glass.
[0004]
[Means for Solving the Problems]
Accordingly, the present invention provides a mask member having a suction hole that penetrates a recording area of a recording medium such as a film and sucks air from the peripheral portion of the recording medium, on the side opposite to the base plate with respect to the recording medium. In a recording medium adsorption / holding method in which the recording medium is adsorbed on a base plate in an overlapping manner, a sheet-like adsorption assisting member having a recording area punched into a suction hole at substantially the same position as the mask member is recorded. The conventional intermittent point is to be solved by providing it between the mask member.
[0005]
[Action]
The conventional example has an opening corresponding to the recording part of the film and has a suction hole at the peripheral position of the film. When air was discharged, air between the glass and the film was discharged from the periphery of the film, and the film was adsorbed on the glass. In the present invention, a sheet-like adsorption assisting member is further sandwiched between the mask plate and the film. This sheet-like suction auxiliary member has an opening corresponding to the recording portion of the film and a small hole for suction at substantially the same position as the mask plate, so that the function is similar to the conventional mask plate, Since it is in the form of a flexible sheet, it can move quickly when air is discharged, and air between the film and glass can be discharged. Further, since this adsorption assisting member itself is in close contact with the glass across the periphery of the film, the effect of sealing the periphery of the film at the time of adsorption is great. Furthermore, when a film is placed on a base plate such as glass and a mask plate is stacked from above, the film can be placed on the glass with the opening of the suction assisting member as a guideline. Can also solve the problem of alignment.
[0006]
【Example】
FIG. 1 is an explanatory diagram of Embodiment 1 of the present invention. Reference numeral 1 denotes a lower plate on which a glass 2 is bonded with a double-sided tape or the like. An anti-Newtonian glass plate is used for the glass. The lower plate 1 has an opening that is not shown in the figure at a position corresponding to the lower side of the glass 2. A film 3 indicated by a dotted line is set on the glass 2. Further thereon, a mask sheet 4 which is a suction assisting member formed of a transparent sheet is fixed by pins 5. The mask sheet 4 is provided with an opening having a size corresponding to the image portion of the film 3, and a plurality of small holes 6 are formed at positions corresponding to the positions on the outer periphery of the film. It can be exchanged. In this embodiment, a PET film is used, but nylon, silicon rubber, a vinyl chloride film, and the like can be used.
[0007]
An upper plate 8 is connected to the lower plate 1 by a hinge 7 so as to be opened and closed. A mask plate 9 is positioned on the upper plate 8 by pins 10 and is fixed to the upper plate by a magnet plate (not shown). It can be exchanged according to the size of the film. The mask plate 9 is provided with suction small holes 11 and openings 12 so that the upper plate overlaps the lower plate 1 so that the mask plate 4 and the small holes 6 are accurately overlapped with each other. Reference numeral 13 denotes a rubber tube for sucking air by a suction pump (not shown), which is connected to an air discharge portion of the upper plate, and this air discharge portion is a small suction plate for sucking the mask plate 9 by a ventilation passage (not shown). The holes are connected so that there is no air leakage.
Hereinafter, the operation of this embodiment will be described.
[0008]
In this embodiment, a lower part of the lower plate 1 is provided on a lower part having an exposure device such as a light box or a strobe, and a recording part located at the upper part, for example, a photosensitive material such as photographic paper or a digital input part such as a CCD. Used for a recording apparatus comprising
First, the user installs the mask sheet 4 and the mask plate 9 corresponding to the size of the film to be used on the lower plate 1 and the upper plate 8, respectively. The film 3 is set on the glass 2 with the upper plate 8 opened. In the setting method, the mask sheet 4 is lifted about half and the position of the film is determined based on the positional relationship with the opening. When the position is determined, the mask sheet 4 is gently lowered. Since the mask sheet 4 is made of a transparent sheet, it is soft, and this alignment can be performed very easily. Next, the upper plate 8 is closed. The opening 12 and the suction small hole 11 of the mask plate 9 set on the upper plate overlap the opening of the mask sheet 4 and the small hole 6. When a suction pump (not shown) is operated, air is sucked from the suction hole of the mask plate 9 through the rubber tube and the air discharge portion of the upper plate and the air passage (both not shown). Further, since the small holes for suction of the mask plate 9 overlap with the small holes 6 of the mask sheet 4, the air near the outer periphery of the film 3 under the mask sheet 4 is eventually sucked. Here, since the mask sheet 4 is made of a flexible material, the mask sheet 4 itself sticks to the glass 2 as the air is discharged. By this effect, the mask sheet seals the outer periphery of the film with the glass, and the efficiency of sucking the air between the glass and the film can be greatly increased.
[0009]
The present invention can be used not only for an apparatus for fixing a film and recording from the upper part as in the above embodiment, but also for, for example, film duplication. Duplication is to duplicate the film by exposing the film to be duplicated and the unexposed film, and for example, setting the film to be duplicated and the unexposed film on the glass of Example 1, If the adsorption operation is performed as described above, two films and glass can be adsorbed on the same principle. Then, duplication can be performed by performing appropriate exposure from above. Normally, it is difficult to adsorb two films and a base plate exactly, but the present invention can realize this, and the film can be fixed even after long exposure, and there is no blurring. It is possible to make a high quality duplicate film.
[0010]
As Example 2, the above-described film adsorbing device for duplication will be described with reference to FIG.
A glass plate 2 is bonded to the lower plate 1, and an adhesion frame 14 is bonded thereon. The opening 15 of this frame has the size of a 4 × 5 photosensitive film, and is further provided with a cut-out portion 16 on the half moon. A photosensitive film is set in the opening 15, and a film to be copied is adhered to the mask sheet 4 shown at the bottom of the figure by a tape or the like from above. A mask plate 9 is set on the upper plate 8, has an opening 12 in the size of the film to be copied, and is provided with a small suction hole 11 on the outer periphery thereof. The mask sheet 4 and the mask plate 9 are provided with suction small holes 17 and 18 at positions corresponding to the half-moon-like cutout portions 16 of the contact frame 14, respectively. The mask plate 9 and the upper plate 8 are provided with a ventilation passage (not shown), and the suction small holes 12 and 18 are connected to an air discharge portion (not shown). The rubber tube 13 is connected to this air discharge part, and the other end is connected to the suction pump.
[0011]
First, the photosensitive film is dropped into the opening 15 of the contact frame 14 and set. The film to be copied is fixed to the mask sheet 4 with a tape or the like using the opening of the mask sheet 4 as a guide. Then, the mask sheet 4 is set with pins 5. Close the upper plate and put it on the lower plate, and switch on the suction pump. Air is discharged from the suction holes 18 and 11 of the mask plate by the suction pump. The suction small hole 18 overlaps the half-moon-shaped cut-out portion 16 of the contact frame 14, and the photosensitive film is adsorbed and adhered to the glass 2 by this air discharge effect, and by the air discharge by the suction small hole 12 of the mask plate, The film to be copied is adsorbed to the photosensitive film. If exposure is performed from above in such a state, copying with very excellent reproducibility can be performed.
[0012]
According to this embodiment, not only can the planarity be improved by adsorbing the photosensitive film to the glass, but also the copying film can be adsorbed to the photosensitive film, so that a very sharp duplication can be performed.
Further, according to the second embodiment, if the contact frame 14 is removed, there is an advantage that it can be used as the film holding device for copying and photographing in the first embodiment.
[0013]
A third embodiment will be described with reference to FIG. FIG. 3 shows a negative carrier used in the enlarger. The lower plate 1 has an opening in which a mask plate 9 is cut out to the size of a negative recording portion, and has a plurality of suction holes. On top of this, the mask sheet 4 is fixed with pins 5. The mask sheet 4 is provided with an opening and a small suction hole 6 at the same position as the mask plate 9, and a PET film is used as a material. An air discharge portion (not shown) is provided on the back side of the lower plate, and communicates with the suction small hole 6 through a ventilation passage (not shown). The air discharge portion is connected to the rubber tube 13 and connected to a suction pump (not shown). ing. An opening is cut through the upper plate 8, and the anti-Newton glass 2 is attached. The negative carrier is sandwiched between the negative carrier and attached to the enlarger. The suction method is to set the negative film on the mask sheet with the opening as a guide.
[0014]
When the suction pump (not shown) is operated with the upper plate overlapped with the lower plate, air is sucked through the rubber tube and the suction holes 6 of the mask plate 9 and the mask sheet 4 through the air discharge portion. Thereby, the residual air between the glass 2 and the set negative film is discharged, and the negative film is adsorbed by the glass. At that time, the mask sheet 4 has an effect of remarkably increasing the adsorption efficiency by closely contacting the outer periphery of the glass and the negative film due to its flexibility. When this negative carrier is set in the enlarger in such a state and the enlargement work is performed, since the negative film is kept flat, the sharpness without blurring or defocusing can be achieved. . In addition, the exposure time can be shortened, and work efficiency can be improved.
[0015]
【The invention's effect】
According to the present invention, the film can be adsorbed to a base plate such as glass very efficiently and strongly. It can also be used for duplication.
As a result, it is possible to improve the quality of images such as enlargement, copying, and duplication, and to work very efficiently.
[0016]
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a first embodiment of the present invention.
FIG. 2 is an explanatory diagram of a second embodiment of the present invention. FIG. 3 is an explanatory diagram of a third embodiment of the present invention.
DESCRIPTION OF SYMBOLS 1 Lower plate 2 Glass 3 Film 4 Mask sheet 5 Pin 6 Suction hole 7 Hinge 8 Upper plate 9 Mask plate 10 Positioning pin 11 Suction hole 12 Opening 13 Rubber tube 14 Adhesion frame 15 Opening 16 Half-moon shape Piercing part 17 Small hole for adsorption

Claims (1)

  A mask member that penetrates the recording area of the recording medium such as a film and has a suction hole for sucking air from the periphery of the recording medium is overlapped on the recording medium from the side opposite to the base plate. In a recording medium adsorption holding method in which a recording medium is adsorbed to a base plate, a sheet-like adsorption assisting member having a recording area that is punched through a suction hole at substantially the same position as the mask member is provided between the recording medium and the mask member. A method for holding a recording medium, comprising:

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