JPH01211743A - Film carrier - Google Patents

Abstract

PURPOSE:To surely position an original film on a specified position in keeping a pressing plate flat without unevenness on the upper surface of the pressing plate by providing an intermediate pressing member which provisionally presses the original film on a base before the pressing plate presses and holds the film between the base and the pressing plate. CONSTITUTION:In case of arranging the original film 14 easy to be curled on the base, the original film 14 can be easily positioned by provisionally pressing the curl, etc., of the film 14 by the intermediate pressing member 34. The provisionally pressed original film 14 is held between the pressing plate 22 and the base 12, so that it can be surely positioned. The original film 14 is arranged on a specified position of a photograph printing device by loading the film carrier 10 to the photograph printing device in the above-mentioned state. Thus, the original film 14 can be surely positioned on the specified position in keeping the pressing plate 22 flat without unevenness on the upper surface of the pressing plate 22.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a film carrier for loading original film into a predetermined position in a photographic printing apparatus.

[Prior art]

Generally, a film carrier is composed of a base and a pressing plate, the two sides of which are connected to each other via a hinge.
It is designed to rotate around this - side. The base is provided with an original film guide groove, and the original film is guided by the guide groove and moved in the longitudinal direction. An opening is provided in a part of the guide groove, and the image frame of the original film placed in the opening is positioned at the printing position when the film carrier is loaded into the photographic printing apparatus. The pressing plate has the role of holding the original film by pressing it from above on the original film placed in the guide groove. Further, an opening identical to the opening of the base is provided in a portion of the pressing plate corresponding to the opening of the base, and the original film positioned at the printing position is transmitted by the light rays passing through these openings, and the print is printed. The image is printed onto the paper.

In this manner, the film carrier can accurately position the original film at a predetermined position, and is also removable from the photographic printing apparatus, making it easy to move and replace the original film.

However, some of the original film has curls, and even if such original film was placed in the guide groove and tried to be held by the suppression plate, the worker would release his hand from the original film at the moment he pressed it down. At this point, the biasing force due to curling may cause the guide groove to fall off or shift from the proper position. Particularly in the case of a short original film (about 4 frames), both longitudinal ends of the film protrude from both widthwise ends of the base, making it impossible for an operator to temporarily hold the original film.

In order to solve this problem, it has been considered to divide the suppression plate into two parts in the width direction of the original film and connect these two members with a hinge to create a so-called center-folding type. First, the first member, which is connected to the base with a hinge, presses half of the original film in the width direction to correct curls, and once the position is determined, the first member is connected with the hinge. The second member holds down the original film. As a result, even a highly curled original film can be reliably positioned at a predetermined position.

[Problem to be solved by the invention]

However, if the pressing plate is made of a folding type, a hinge is required to connect the two members, and this hinge prevents the top surface of the pressing plate from being flush with the original film, especially when moving the original film for trimming. Damage may occur due to the gap between the first member and the second member.

The present invention has been made in consideration of the above facts, and an object of the present invention is to obtain a film carrier that can reliably position an original film at a predetermined position without providing unevenness on the circumferential surface.

[Means to solve the problem]

A film carrier according to the present invention is a film carrier for holding an original film and loading it into a predetermined position of a photoprinting device, and includes a base on which the original film is placed, and a base that rotates around one side of the base. a suppressing plate that suppresses and holds the original film placed on the base; and a suppressing plate that is disposed between the base and the suppressing plate and temporarily presses the original film on the base before being pressed and held by the pressing plate. It has an intermediate pressing member.

[Effect]

When an original film with curls or the like is placed on the base, positioning of the original film becomes easier by temporarily holding the curls with an intermediate holding member. By being held between the press plate and the base, the film carrier is reliably positioned. By loading the film carrier into the photoprinting device in this state, the original film can be placed at a predetermined position in the photoprinting device.

In this way, in the present invention, since the intermediate pressing member is provided between the base and the suppressing plate, there is no need to divide the suppressing plate into two to create a center-folding type, and the suppression plate that would otherwise be formed when using a center-folding type is eliminated. There is no damage to the original film surface when trimming the original film due to the unevenness.

[First Embodiment] Figures 1 and 2 show a film carrier according to this embodiment, and since a negative film 14 is used as the original film in this embodiment, the negative carrier 10 will be described below.
It is called.

The negative carrier 10 has a negative film 1 on its base 12.
4 is placed thereon, and a groove 16 for protecting the negative film is provided along the longitudinal direction of the negative film 14. Thereby, when the negative film 14 is slid, it can be guided on the base 12 in the direction of the arrow in FIG. 1 without damaging the image plane.

An opening 18 is provided in the longitudinally intermediate portion of the groove 16, and this opening 18 corresponds to one image frame of the negative film 14. All four sides of the opening 18 are flush with the upper end of the base 12, and the negative film 14 is held securely without sagging by a pressing plate 24, which will be described later. (See Figure 5).

This opening 18 is arranged at a printing position when the negative carrier 10 is loaded into a photographic printing apparatus (not shown), and the image frames positioned in this opening 18 are used as printed images.

A pressing plate 22 is attached to the base 12 via a hinge 20, and presses down the negative film 14 placed across the groove 16 from above in FIG. 1 to prevent the negative film 14 from shifting. ing. That is, the negative film 14 is arranged so as to straddle the groove 16 in the state shown in FIG. 2 (open state), and in the state shown in FIG. 4 (closed state).
The negative film 14 is held in the vicinity of both ends in the width direction, and is loaded into a photographic printing apparatus. The pressing plate 22 is provided with an opening 24 having the same shape as the opening 18 provided in the base 12, and both openings 18.24 are aligned in the closed state.

The base 12 is provided with a long groove 28 in a portion corresponding to a screw 26 for attaching the hinge 20.
It is said to be used for relief grooves. In addition, the opening 1 of the base 12
Knock pins 30 are projected on substantially extension lines of the diagonal lines 8 and correspond to both ends of the negative film 14 in the width direction. As a result, the negative film 14 is attached to the dowel pin 3.
0 so that the axis can be moved in the direction of the arrow A without shifting. Also, this knock pin 3
A circular hole 32 is provided in the pressing plate 22 corresponding to the position 0, and is used for escape of the knock pin 30 when the pressing plate 22 is in the closed state.

Here, the negative carrier 10 according to this embodiment has a base 1
2 and the pressing plate 22, a sheet 3 as an intermediate pressing member is placed between the sheet 3 and the pressing plate 22
4 is provided. This sheet 34 is thin and flexible, and the vicinity of its negative side is held between the hinge 20 and the base 12, so that it is in close contact with the upper surface of the base 12. (See Figure 4). In this embodiment, the sheet 34 is semitransparent, and the sheet 34 is provided with an opening 36 corresponding to the opening 18.24. This opening 36 has the role of exposing the image frame positioned in the opening 18 of the base 12. Note that if the sheet 34 is formed of a transparent film or the like, this opening 36 is not necessarily required. However, in this case, as with a glass film carrier (a type of film carrier in which both sides of a negative film are sandwiched between transparent glasses), Newton's rings may occur, so even if the carrier is transparent, the openings 36 are formed. is preferable.

Further, this sheet 34 is provided with an escape hole 38 for the knock pin 30 and an escape hole 40 for the screw 26.
This prevents interference between both the knock pin 30 and the screw 26 in the closed state of 2.

This sheet 34 is designed so that the curl of the negative film 14 as shown in FIG. 1 can be eliminated in the state shown in FIG. 3 (temporary holding). That is, since the sheet 34 has flexibility, it gradually presses down the negative film 14 from one end in the width direction of the negative film 14 (the right end in FIG. 3), and the sheet 3
4 is brought into close contact with the base 12, the negative film 1
4, the curl will be corrected.

In this state, by rotating the press plate 22 about the rotation axis of the hinge 20 in the direction of arrow B in FIGS. 1 to 4, the negative carrier 10 is closed while reliably holding the negative film 14 in a predetermined position. will be done.

The operation of the first embodiment will be explained below.

When printing an image on a negative film 14 onto photographic paper using a photographic printing apparatus, the negative film 14 is first positioned at a predetermined position on the negative carrier 10. In this case, the image frame to be printed is made to correspond to the opening 18 of the base 12,
The negative film 14 is placed on the guide groove 16. here,
When a negative film 14 as shown in FIG. 1, that is, a negative film 14 with curls, is placed on the guide groove 16, both longitudinal ends are turned upward.

While the worker was holding down this turned-up part with his hands,
As shown in FIG. 3, the sheet 34 is gradually brought into close contact with the base 12 from the third canvas side.

Here, when the close contact portion between the base 12 and the sheet 34 rests on the negative film 14, even if the hand holding the negative film 14 is released, the curl is maintained in a corrected state, and it is in a temporarily pressed state. be able to.

When the entire surface of the sheet 34 is brought into close contact with the base 12, the press plate 22 is then rotated in the direction of arrow B around the rotation axis of the hinge 20, and the negative film 14 is held between the base 12 and the press plate 22. , the negative film 14 can be held, and the arrangement of image frames to be printed at predetermined positions is completed. Furthermore, when trimming the image frames after they have been placed in a predetermined position, the sheet 34 can be easily trimmed by slightly turning over the sheet 34 to expose a part of the negative film 14 in the width direction. The corrected state can be maintained. Further, since the sheet 34 has no irregularities, the surface of the negative film 14 is not damaged when the negative film 14 is moved along the guide groove 16.

Next, printing can be performed by loading this negative carrier 10 into a film carrier loading section of a photographic printing apparatus.

In this way, by providing the sheet 34 for temporarily holding the negative film 14 between the base 12 and the pressing plate 22, the shape of the pressing plate 22 can be changed to a center-fold type in order to correct the curl of the negative film 14. There is no need to create a complex shape like this. Also, note 34 is base 1
2 and the press plate 22 and the base 12.
Since it can be assembled by simply sandwiching it between the film carrier and the film carrier, it is possible to easily improve existing film carriers.

Although the sheet 34 is made of a flexible member in the first embodiment, flexibility is not necessarily required. However, when using a member with almost no flexibility such as hard resin, three plates (base 12, sheet 34, suppression plate 22) are used.
The mechanism that allows these to coaxially rotate relative to each other becomes complicated, or even if they are non-coaxial, a clearance is required to prevent them from interfering with each other.

[Second Embodiment] Next, a second embodiment of the present invention will be described with reference to FIG. In this second embodiment, parts that are the same as those in the first embodiment are given the same numbers, and explanations of their structures will be omitted.

As shown in FIG. 5, the base 12 has this base 1
One movable piece of two hinges 42, which are separate from the hinge 20 with the press plate 22 attached to the hinge 20, is attached to the other movable piece, and both ends of a wire rod 44, which is an inner pressing member, are wound around the other movable piece. .

The middle portion of the wire rod 44 is bent into a substantially U-shape, and the press plate 22 is provided with an accommodation groove 46 in which the wire rod 44 is accommodated. The wire rod 44 is brought into contact with the base 12 by rotating in the direction of arrow C around the rotation axis of the hinge 42, and when this contact is made, the wire rod 44 is arranged so as to surround the periphery of the opening 18 of the base 12. It is now possible to do so.

By forming the intermediate pressing member with such a configuration,
First, the curled negative film 14 can be pressed by rotating the wire rod 44 around the rotation axis of the hinge 42 to press the vicinity of both ends of the image frame to be printed located in the opening 18, thereby eliminating the negative film's curling. It is possible to create a so-called temporary holding state that prevents lifting and the like.

Further, when trimming is performed in a temporarily held state, it can be done by simply moving the negative film 14, and since there are no irregularities on the outer periphery of the wire rod 44, the surface of the negative film 14 is not damaged during trimming. In addition, when closing the press plate 22 from the temporary holding state, the wire rod 44 is accommodated in the accommodation groove 46 provided in the press plate 22, and the base 1
2 and the press plate 22 can be reliably brought into a closed state.

In the second embodiment, the wire rod 44 is connected to the pressing plate 22 and the base 1.
It was attached to the base 12 using a hinge 42 that is separate from the hinge 20 that was used to attach the wire rod 44 to the base 12 and the pressing plate 22. It may be extended and wrapped around the extended rotating shaft. Further, the intermediate holding member applied in the second embodiment is not limited to the wire rod 44, but may be a narrow member having a uniform width formed by forming a narrow thin plate material into a substantially U-shape.

This has an excellent effect in that the original film can be reliably positioned at a predetermined position without providing unevenness on the circumferential surface.

[Brief explanation of the drawing]

3 is a cross-sectional view showing the temporary holding state by the intermediate pressing member, FIG. 4 is a cross-sectional view showing the closed state of the film carrier, and FIG. 5 is a case where a narrow member is used as the intermediate pressing member. FIG. DESCRIPTION OF SYMBOLS 10... Negative carrier, 12... Base, 14... Negative film, 22... Press plate, 34... Sheet, 44... Wire rod.

Claims (3)

[Claims] (1) A film carrier for holding an original film and loading it into a predetermined position of a photoprinting device, which includes a base on which the original film is placed, and a base that is rotatable around one side of the base. a pressing plate that presses and holds the original film placed thereon; an intermediate pressing member that is disposed between the base and the pressing plate and temporarily presses the original film on the base before the pressing plate holds the original film; A film carrier with (2) The film carrier according to claim 1, wherein the intermediate pressing member is a flexible thin plate. (3) The film carrier according to claim 1, wherein the intermediate pressing member is formed of a narrow member and temporarily presses the vicinity of the outer periphery of the image frame to be printed.