JPH0570812B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image receiving member used in peel-apart type instant photography in which an image receiving sheet member and a photosensitive sheet member are separated after development processing.

[Prior art]

Peel-apart type instant film unit (hereinafter simply referred to as film unit)
has been widely known for a long time. This film unit is composed of a photosensitive sheet member for recording a latent image and an image receiving sheet member for receiving this latent image and forming a developed image. The film units are stacked one on top of the other and stored in the pack. After loading this pack into the camera and taking a picture, if you pull out the tab attached to the photosensitive sheet member side, the photosensitive sheet member will be pulled out while going around behind the support plate, and its tip will be attached to the image receiving sheet member. The film protrudes from the camera's film outlet while being in close contact with the tip of the camera. The tab will peel off in this state, so next time, hold the tips of the photosensitive sheet member and image receiving sheet member that are in close contact with each other and pull them out.
The photosensitive sheet member and the image-receiving sheet member gradually come into close contact with each other from their leading ends as they pass between a pair of developing rollers. When passing through this developing roller, the developer pot is torn open, and the developer contained therein is pushed out and spread between the photosensitive sheet member and the image-receiving sheet member. With this developer, the latent image recorded on the photosensitive sheet member is transferred to the image-receiving sheet member, and an image is formed on this image-receiving sheet member.

In the conventional peel-apart type instant photograph mentioned above, the image-receiving sheet member is separated for each frame and combined with the photosensitive sheet member for one frame to form a unit and stored in a pack. This pack can only hold about 10 film units, so it is not a big problem when used with an amateur camera that takes a small number of shots, but for professional use, where a large number of shots are taken, for example, a coin-in type camera. ID photographic device,
Studio photography equipment, driver's license photography equipment, CRT
In the image photographing apparatus and the like, there is a problem in that the pack must be replaced frequently and photographing is troublesome. In addition, the manufacturing cost of packs,
Another drawback is that the cost per film is high due to the cost of storing the film unit in the pack and the cost of photographing.

[Problem that the invention seeks to solve]

SUMMARY OF THE INVENTION An object of the present invention is to provide an image receiving member for instant photography that allows mass photography to be carried out easily and at a low cost per photograph.

[Means for solving problems]

In order to achieve the above object, the present invention provides a plurality of consecutive frames by alternately joining a plurality of image-receiving sheets on which images are respectively recorded and an intermediate sheet to which a developer pot is attached. It is something.

The image receiving member of the present invention is loaded into a photographing device in the form of a roll, and then cut at the intermediate sheet portion to separate image receiving sheet members for one frame, and this image receiving sheet member is stacked on a photosensitive sheet member to form a unit. . At this time, it is preferable that the photosensitive sheet member is also formed into a roll, cut into one frame after photographing, and then stacked on the image receiving member of the present invention.

Embodiments of the present invention will be described in detail below with reference to the drawings.

〔Example〕

As shown in FIG. 1, the image receiving member 1 is composed of an image receiving sheet 2 that receives a latent image from a photosensitive member and forms a developed image on an image receiving surface 2a, and an intermediate sheet 4 to which a developer pot 3 is attached. These are joined alternately. On the lower surface of both ends of the intermediate sheet 4, so that it can be peeled off by hand after development,
Adhesive layers 5a and 5b having weak adhesive strength are formed, and by heating these adhesive layers 5a and 5b, the intermediate sheet 4 and the image receiving sheet 2 are joined. Further, an adhesive layer 5b is provided on the upper surface of the intermediate sheet 4.
An adhesive layer 5c is formed at a position closer to
By stacking the developer pot 3 on top of this and heating it, the developer pot 3 is fixed to the intermediate sheet 4. On both sides of the image receiving surface 2a of the image receiving sheet 2, in order to be able to peel it off by hand,
Adhesive layers 6a and 6b with low adhesive strength are formed, and spacers 7 and 8 are bonded thereon, respectively. The spacers 7 and 8 are provided to spread the developer flowing out by tearing the developer pot 3 to a uniform thickness on the image receiving surface 2a.
Note that if adhesive layers are provided on the lower surfaces of the spacers 7 and 8, the adhesive layers 6a and 6b of the image receiving sheet 2 can be omitted.

As shown in FIG. 2, in the image receiving member 1, a plurality of image receiving sheets 2 and an intermediate sheet 4 are alternately joined, thereby forming a plurality of continuous pieces. This long image receiving member 1 is in the form of a roll in consideration of its storage and loading into a photographing device. Then, it is loaded into a photographing device in roll form, and cut out one frame at a time from the cutting position indicated by a dashed line 9. By this cutting, the intermediate sheet 4 is separated into a drawer section 4a that holds the developer pot 3 and a skirt section 4b that receives excess developer.

As shown in FIG.
5a to form a unit. After being made into a unit, the stacked image receiving sheet member 1a and photosensitive sheet member 15a are passed between developing rollers and subjected to the developing process, similar to the conventional film unit in which each frame is made into a unit in advance. be exposed.
During this development process, if the image receiving sheet member 1a and the photosensitive sheet member 15a are misaligned, a blurring image may occur, or the image transferred to the image receiving sheet 1a may be misaligned. . To prevent this, it is preferable to fix the leading end of the photosensitive sheet member 15a to the image-receiving sheet member 1a using adhesive tape 16a or by forming an adhesive layer on the drawer portion 4a.

Next, a photographing device using the image receiving member of the present invention will be explained. In FIG. 4, a photosensitive member 15 for recording a latent image is wound around a core 17;
It is removably loaded into a core receiver 21 disposed above the camera housing 20. This photosensitive member 15 includes a guide roller 22, a return roller 23,
It passes through the guide rollers 24 one after another and reaches the exposure position P. The return roller 23 is connected to the air cylinder 2
The photosensitive member 15 is connected to the rod 25a of No. 5, and after cutting into sheets, moves forward and returns the tip of the photosensitive member 15 a little, thereby eliminating waste of the photosensitive member 15. A photographing lens 27 having a lens shutter 26 is disposed in front of the exposure position P, and while the lens shutter 26 is open, an image of the subject is formed on the photosensitive member 15 and recorded thereon as a latent image. In order to prevent external light from entering the photosensitive member 15 at the exposure position P, a bellows 29 is attached to the exposure frame 28 and the photographing lens 27. Further, in order to ensure the flatness of the photosensitive member 15 at the exposure position P, a plate 30 is provided.
A pair of photosensitive member feeding rollers 32 and 33 are disposed at the lower end of the exposure frame 28, and are driven by a motor 34 to quantitatively feed the exposed photosensitive member 15 until the tip reaches the photosensitive member tip position P. Perform sending.

In order to receive the latent image recorded on the photosensitive member 15 and form an image, the image receiving member 1 is connected to the winding core 18.
It is wound around the camera housing 20, and is detachably loaded into a core receiver 36 disposed below the camera housing 20. The image receiving member 1 is nipped and sent out by a pair of image receiving member feeding rollers 38 and 39 driven by a motor 37, moves on guide plates 40a and 40b, and its tip reaches the image receiving member tip position P2.
will be sent to. This image receiving member feeding roller 3
Reference numerals 8 and 39 denote portions that are removed from the developer pot 3 (on both sides of the intermediate sheet 4) in order to prevent the developer pot 3 from tearing when the image receiving member 1 is pulled out.
It is composed of three narrow rollers so as to nip between the intermediate sheet 4 and the portion (the center of the intermediate sheet 4) where the developer is not sealed.

Since the image receiving member leading end position P2 is located further than the photosensitive member leading end position P1, the image receiving member feeding rollers 38 and 39 are set to have a larger feeding amount than the photosensitive member feeding rollers 32 and 33. Then, the photosensitive member 15 is placed on the image receiving member 1, and the adhesive tape 16a is pasted thereon, and then a cutter is attached to the photosensitive sheet member 15a and the image receiving sheet member 1a, as shown in FIG. It is cut off at 41.

The adhesive tape 16a is an adhesive tape roll 1.
It is obtained by pulling out the tip of No. 6 and cutting it to a predetermined length. That is, the adhesive tape roll 16 consists of a pair of roller rollers 4 that are formed with unevenness extending in the axial direction on the outer periphery to make it difficult to bond.
3, 44, it is pulled out by a certain length,
The non-adhesive surface of the tip is sucked and held by the lower surface of the push plate 45, and is cut by the cutter 46 as it descends together with the push plate 45. This push plate 45
has many suction holes formed on its underside,
Connected to a vacuum source (not shown). The adhesive tape 16a cut to a predetermined length is placed on a push plate 45.
Since the adhesive surface formed on one side is pressed against the photosensitive member 15 and the image receiving member 1, it is bonded thereon. Then, after bonding the adhesive tape 16a, the push plate 45 releases the suction and holding of the non-adhesive surface of the adhesive tape 16a, so that only the push plate 45 rises. In this example, adhesive tape roll 1
6 is pulled out in the direction in which the photosensitive member 15 is transported, but it can also be pulled out in a direction perpendicular to the direction in which the photosensitive member 15 is transported by changing the arrangement of the adhesive tape roll 16.

A lower end of a slide lever 47 is fixed to the push plate 45, and the slide lever 47 moves up and down while being guided by a guide member (not shown). In order to move this slide lever 47 up and down, its upper end is connected to a drive lever 49 by a pin 48.
is connected to one end of the This drive lever 49
is rotatably supported by a shaft 50, and a roller 51 is attached to its tip. This roller 51 is in contact with the outer periphery of a cam 53 driven by a motor 52.

A pair of unfolding rollers 5 are provided in front of the pushing plate 45.
5 and 56, through which the photosensitive sheet member 15a and the image receiving sheet member 1a pass in close contact with each other, and at this time the developer pot 3 is torn open. These developing rollers 55 and 56 are applied with a constant pressing force by a spring. Conveying rollers 57, 5 are placed in front of these developing rollers 55, 56.
8 and pull-out rollers 59 and 60 are arranged. The conveyance rollers 57 and 58 convey only the spacers 7 and 8 while sandwiching them in order to prevent uneven development. When the developer pot 3 is torn apart by the pair of developing rollers 55 and 56,
Since a considerable pull-out force is required, slippage is likely to occur if only narrow conveyance rollers 57 and 58 are used. Therefore, in order to increase the pulling force at the initial stage of drawing out the image receiving sheet member 1a, a pair of drawing rollers 59 and 60 are arranged.
Grasp the tip of the image receiving sheet member 1a and pull it out. If these pull-out rollers 59 and 60 are always close to each other, they will pinch the image-receiving sheet 2 when it arrives, causing uneven development, so one of the pull-out rollers 60 must be retracted before the image-receiving sheet 2 arrives. I'm starting to do that. Note that the conveyance rollers 57, 58
And, the pull-out rollers 59 and 60 are attached to the adhesive tape 16.
It is driven by a motor (not shown) that rotates for a predetermined period of time after bonding a.

Next, the operation of the above photographing device will be explained. First, the photosensitive member 15 in the form of a roll is loaded into the core receiver 21, and its tip is connected to the photosensitive member feeding rollers 32, 3.
3. Set it to the nipped position. Further, the roll-shaped image receiving member 1 is loaded into the core receiver 36 and set at a position where its leading end is nipped by the image receiving member feeding rollers 38, 39.

When the start key is pressed after placing the subject in front of the photographic lens 27, the shutter 26 is operated and a latent image of the subject is recorded on a part of the photosensitive member 15 positioned at the exposure position P. After this photographing, the motor 37 starts, so the image receiving member feeding roller 3
The image receiving member 1 nipped by 8 and 39 moves along the support plates 40a and 40b,
The image receiving member is fed by a fixed amount until its tip reaches the image receiving member tip position P2. When this constant feed is detected by the photo sensor, the motor 37 is stopped.
When sending out the image receiving member 1, the conveying rollers 57,
58 and the pull-out rollers 59 and 60 rotate for the same amount of time, so that the tip of the image receiving member 1 is caught by them.

After the image receiving member 1 is fed in a fixed amount, the motor 34 is started, and the photosensitive member feeding rollers 32 and 33 rotate to feed the photosensitive member 15 in a fixed amount. The leading end of the photosensitive member 15 is laterally turned by a curved guide plate 62 and then moved along the top of the image receiving member 1 . Then, when a sensor such as a photo sensor detects that the tip of the photosensitive member 15 has reached the photosensitive member tip position P1, the rotation of the motor 34 is stopped.

After the photosensitive member 15 is fed in a fixed amount and properly overlaps the image receiving member 1, the roller rollers 43 and 44 rotate to feed the leading end of the adhesive tape roll 16 in a fixed amount. The non-adhesive surface of the leading end of the adhesive tape roll 16 that has been fed in a fixed amount is sucked and held by the lower surface of the push plate 45 . Next, the motor 52 is started to rotate the cam 53 once. As the cam 53 rotates, the push plate 45 descends while sucking and holding the tip of the adhesive tape roll 16 on its lower surface, and the cutter 46 cuts the adhesive tape 16a into a predetermined length. Obtained adhesive tape 16a
The tip of the photosensitive member 15 is pressed by the push plate 45, and
It is pressed against and adhered to a part of the image receiving member 1. After adhesion of the adhesive tape 16a, the valve provided in the vacuum source is switched and the inside of the push plate 45 is communicated with the atmosphere, so the suction and holding of the adhesive tape 16a is released and the push plate 45 is raised. to return to the initial position. By joining the adhesive tape 16a, the photosensitive member 15 is joined to the image receiving member 1 with its leading end covering the developer pot 3.

Next, the cutter 41 is operated to remove the photosensitive member 15.
and the image receiving member 1 are cut, and the photosensitive sheet member 15a is
and the image-receiving sheet member 1a to form an instant photographic unit 64 for one frame. After this cutting, the transport rollers 57 and 58 and the pull-out roller 5
9 and 60 rotate, the image receiving sheet member 1a
The tip of the paper is caught by the drawing rollers 59 and 60 and drawn out. Along with this, the photosensitive sheet member 1
The image receiving sheet member 5a and the image receiving sheet member 1a are pulled out while being in close contact with each other by conveying rollers 57 and 58 with both sides thereof being engaged. At this time, since the developer pot 3 passes through the pair of developing rollers 55 and 56, the developer pot 3 is torn open and the developer stored inside is released from the photosensitive sheet member 15a and the image receiving sheet member 1.
It flows out between a. Immediately after this, one of the pull-out rollers 60 is retracted upward. The developer flowing out from the developer pot 3 is transferred to a pair of developing rollers 55, 5.
In step 6, it is rolled out so that the thickness is uniform. In addition,
Excess developer is stored between the rear end of the photosensitive sheet member 15a and the skirt portion 4b.

Expanded instant photo unit 64
The image receiving sheet member 1a and the photosensitive sheet member 15a
are discharged onto the tray 65 while remaining in close contact with each other via the sticky developer. Then, if you leave this instant photo unit 64 as it is for about 60 seconds and then peel off only the image receiving sheet 2,
It is possible to obtain an instant photograph in which the image of the subject is recorded.

After the cutter 41 is operated, the motor 34 is reversed, and the air cylinder 25 is operated to advance the return roller 23. As a result, the leading end of the photosensitive member 15 that has been sent out to the cutter 41 is returned to the position of the photosensitive member feeding rollers 32 and 33, and the amount of expensive photosensitive member 15 used can be saved.

Furthermore, when photographing is to be carried out, by operating the start key again, the photosensitive sheet member 15a and the image receiving sheet member 1a are brought into close contact with each other after exposure according to the above-described procedure, and are ejected onto the tray 65 as an instant photographic unit 64. .

When the instant photo unit 64 is peeled off after being heated (25 to 30°C) for a certain period of time (60 seconds),
The finish will be uniform. To do this, the tray 65 must be heated within the camera housing 20 for a certain period of time.
It is desirable to discharge it at Further, the back surfaces of the photosensitive member 15 and the image receiving member 1 are subjected to light shielding treatment to prevent fogging even if they are left in a bright room after deployment. If this light shielding treatment is omitted, the cost of the photosensitive member 15 and the image receiving member 1 can be reduced, but in that case, it is necessary to perform the development and fixing treatment in a dark room. In order to meet these demands, it is preferable to provide a device that can shield the inside of the camera housing 20 from light and temporarily store the instant photographic unit 64 inside the camera housing 20.

In addition, another cutter is placed under the photosensitive member feeding rollers 32 and 33, and the exposed photosensitive member
After feeding the photosensitive member 5 by a fixed amount, the photosensitive member 15 is cut into the size of one frame, and then the cutter 4
1 at the tip position P2 of the image receiving member, and
It is also possible to feed a fixed amount of paper while developing it, and then cut it into pieces of one frame size. In this case, there is no need for a return operation to save the photosensitive member 15, and there is no need to feed the image receiving member 1 by a fixed amount before feeding the photosensitive member 15 by a fixed amount. Further, conveyance rollers 57, 58 and pull-out rollers 59, 60
can be driven in synchronization with the image receiving member feeding rollers 38 and 39, which has the advantage that the motor 37 can also be used.

〔Effect of the invention〕

In the present invention having the above configuration, a plurality of frames are continuously formed and each frame is cut into a sheet form at the time of use, so when performing mass shooting,
Unlike conventional film units with packs, there is no need to frequently replace packs, making photography extremely convenient. Further, since the present invention is suitable for large-scale continuous photographing, it is convenient in cases where it is difficult to provide an operator due to cost considerations, such as coin-in type automatic photographing machines. Furthermore, for these reasons and the elimination of the need for packs, it becomes possible to significantly reduce the photographing cost per frame.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing one embodiment of the present invention. FIG. 2 is a plan view of one embodiment of the present invention. FIG. 3 is a perspective view showing the overlapping state of the photosensitive sheet member and the image receiving sheet member. FIG. 4 is a schematic diagram of a photographing device using an image receiving member according to the present invention. 1...Image receiving member, 1a...Image receiving sheet member, 2
... Image receiving sheet, 3 ... Developer pot, 4 ... Intermediate sheet, 5a to 5c, 6a, 6b ... Adhesive layer,
7, 8... Spacer, 9... Cutting line, 15... Photosensitive member, 15a... Photosensitive sheet member, 16... Adhesive tape roll, 16a... Adhesive tape, 27...
...Taking lens, 32, 33...Photosensitive member feeding roller, 38, 39...Image receiving member feeding roller, 45...
...Push plate, 55, 56...Development roller, 57, 5
8... Conveyance roller, 59, 60... Drawer roller, 64... Instant photo unit.

Claims (1)

[Scope of Claims] 1. An image-receiving member for instant photography, characterized in that a plurality of image-receiving sheets, each forming an image, and a plurality of intermediate sheets are alternately joined together, and a developer pot is attached to the intermediate sheets. 2. The image receiving member for instant photography according to claim 1, wherein the image receiving member is wound into a roll. 3. An image receiving member for instant photography according to claim 2, wherein the intermediate sheet is cut between the developer pot and the image receiving sheet in front of the developer pot, and is used separately for each frame.