JP2545673B2 - Instant photocopier - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an instant photographic copying apparatus for copying a subject such as an original or an original image.

[0002]

2. Description of the Related Art As a copying apparatus for copying a subject such as an original or an original image, an instant photographic copying apparatus using an instant film has been proposed (Japanese Patent Laid-Open No. 3-1922).
42).

According to this instant photocopier, a case is placed on a subject and used for copying the subject. Inside the case, there is a film cassette in which the instant film is mounted, optical means for focusing a small area of the subject on the photosensitive surface of the instant film in the film cassette, and this optical means for the instant film in the film cassette. The driving means for scanning in parallel with the instant film and the light shielding means for preventing unnecessary light from entering the photosensitive surface of the instant film in the film cassette are provided. It can be copied to film. The case is composed of a box-shaped main body case and a box-shaped cassette case joined to the upper surface of the main body case. Optical means, drive means and light-shielding means are provided inside the main body case, and a film is provided inside the cassette case. A cassette is provided.

[0004]

However, in the above-mentioned conventional structure, the case has a double-box structure of a box-shaped main body case and a box-shaped cassette case, so that the entire case is large. . Further, the cassette case is provided with a lid for loading and unloading the film cassette, so that not only the number of parts is large, manufacturing and assembling are complicated, but also high assembling accuracy is required. There was a problem. Further, there is a problem that light leaks from the space between the main body case and the cassette case to the inside depending on the assembling accuracy.

It is an object of the present invention to provide an instant photocopier which can be miniaturized, has a small number of parts, and has no internal light leakage.

[0006]

In an instant photocopier according to the present invention, a case placed on a subject and an instant film are mounted so that the photosensitive surface of the instant film faces the subject. A film cassette arranged in the case, an optical means arranged in the case for forming an image of a small area of a subject on the photosensitive surface of the instant film, and an optical means arranged in the case for the instant film. In the instant photocopier, the case includes a driving unit that scans in parallel with each other, and a light-shielding unit that is disposed in the case to prevent unnecessary light from entering the photosensitive surface of the instant film.
It consists of a box-shaped body case placed on the subject and a lid provided on the top of the body case, and the body case has light-transmittable windows facing the subject on both upper and lower surfaces. In addition, the optical means and the driving means are provided inside, and the lid body is displaceably attached to the main body case to detachably accommodate the film cassette between the lid body and the upper surface of the main body case.

[0007]

According to the present invention, since the film cassette is detachably accommodated between the lid and the upper surface of the main body case, it is not necessary to provide a conventional box-shaped cassette case,
Therefore, the case can be downsized, the number of parts is small, and there is no light leakage to the inside.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An instant photocopier according to the present invention will be described below with reference to the drawings.

In this instant photocopier, a box-shaped case 1 is provided as shown in FIGS. 1 to 4, and the case 1 is placed on an original image 2 as a subject to copy the original image 2. It can be taken.

The case 1 is composed of a box-shaped case body 3 and a lid 4 provided on the top of the case body 3, and a box-shaped film cassette 5 is provided between the upper surface of the case body 3 and the lid 4. Is hermetically sealed. In the film cassette 5,
A plurality of instant films 6 are stacked and housed inside, and the original image 2 can be copied on the instant film 6. An opening 7 is formed on the bottom surface of the film cassette 5, and the photosensitive surface 6a of the instant film 6 faces the opening 7. As the instant film 6, a peelable type is applied.

The case body 3 is composed of an upper case 8 and a lower case 9. An opening 10 is formed on the upper surface of the upper case 8 so as to face the opening 7 of the film cassette 5 and the lower surface of the lower case 9 is formed. An opening 11 facing the opening 10 is formed.

A step portion 8a is formed on the upper surface of the upper case 8, and one side is a low surface portion 8b and the other side is a high surface portion 8c with the step portion 8a as a boundary, and an opening 10 is formed in the low surface portion 8b. Has been formed. A frame-shaped portion 8d that opens upward is formed around the opening 10 on the upper surface of the lower surface portion 8b, and the film cassette 5 is housed and held in the frame-shaped portion 8d. In the frame-shaped portion 8d, a cover portion 8e that covers a part of the film cassette 5 is formed at the upper end of one side portion adjacent to the step portion 8a,
The cover portion 8e prevents the film cassette 5 from being accidentally pulled out. Cover 8e
Is set to a length such that the film cassette 5 can be accommodated in the frame-shaped portion 8d from obliquely above so that the film cassette 5 can be accommodated in the frame-shaped portion 8d. The step between the low surface portion 8b and the high surface portion 8c is set to a size such that the film cassette 5 and the cover portion 8e are located at a position lower than the high surface portion 8c.

The lower case 9 is formed with a window frame portion 9a projecting downward around the opening 11, and a transparent plate 13 which is in close contact with the original image 2 is fixed to the window frame portion 9a. Transparent plate 13
Is made of glass or the like so that it can transmit light. That is, the transparent plate 13 and the opening 10 are windows formed on the upper and lower surfaces of the case body 3 so as to face the original image 2.

A positioning panel 14 as a positioning member is joined to the lower surface of the lower case 9. An opening 15 is formed in the center of the alignment panel 14, and a window frame portion 9a is fitted into the opening 15 and joined to the lower surface of the lower case 9. The thickness of the alignment panel 14 is the window frame 9
The height of the transparent plate 1 is about the same as the downward projection of a.
It is almost flush with 3. The alignment panel 14 has one end rotatably supported by the lower case 9 via a pin 16 and a pressing piece 14a protruding laterally of the lower case 9 formed at the other end. It is designed to be used for alignment with. That is, when one side of the case body 3 is pulled upward while pressing the pressing piece 14a of the alignment panel 14, the case body 3 is rotated around the pin 16 with respect to the alignment panel 14 as shown in FIG. By this rotation operation, the case body 3 and the alignment panel 1
The opening 15 can be aligned with the original image 2 from between 4 and 4. Further, on the alignment panel 14, an engaging piece 14b that engages with the side surface portion of the lower case 9 is formed near the base of the pressing piece 14a.
4b prevents it from rotating carelessly. The engagement piece 14b is the case body 3 and the alignment panel 1
4 is adapted to be engaged with and disengaged from the side surface portion of the lower case 9 by a rotation operation with respect to the lower case 9. For example, when one side of the case main body 3 is pulled upward during alignment with the original image 2, the lower case is moved by the pulling operation. 9 is released from the engagement with the side surface portion of the case body 3, and the case body 3 is allowed to rotate. From this released state, when the case body 3 is pushed down, this pushing operation engages with the side surface portion of the lower case 9. It has become.

In the lower case 9, a battery accommodating portion 17 is formed below the high surface portion 8c of the upper case 8, and a plurality of driving batteries 18 are accommodated in the battery accommodating portion 17. The battery housing portion 17 is opened on the lower surface of the lower case 9 and closes the opening on the lower surface of the lower case 9 with a battery lid 19.
Is detachably attached, and the battery 18 can be replaced from the lower surface side of the lower case 9 as necessary by removing the battery lid 19.

Inside the case body 3, there is a lower case 9
The frame 20 fixed to the
A pair of guide shafts 21 (only one side is shown in FIGS. 1 and 2) are attached to the 0. Frame 2
0 indicates a pair of plate portions 20a that face each other in parallel around the opening 11 and both end portions of these plate portions 20a are opened.
A pair of beam portions 20b connected around one is formed into a rectangular frame shape in plan view (see FIG. 2), and a pair of guide shafts 21 are provided in parallel with each other between the plate portions 20a. Each guide shaft 21 extends around the opening 11 so as to be parallel to the instant film 6 in the film cassette 5. Both ends of a carrier 22 are slidably fitted to these guide shafts 21 so as to guide the carrier 22 in parallel with the instant film 6. A fluorescent tube 23 as an illumination means, a rod lens array 24 as an optical means, an endless timing belt 25, and a light shielding film 26 constituting a light shielding means are attached to the carrier 22.

The fluorescent tube 23 is attached to the lower end side of the carrier 22 and illuminates the original image 2 through the transparent plate 13. The rod lens array 24 is the carrier 22.
It is attached to the central part of the, and when the fluorescent tube 23 is turned on, the reflected light from the original image 2 is incident, and the thin area of the original image 2 is imaged on the photosensitive surface 6a of the instant film 6 at an equal magnification. There is. As this type of rod lens array 24, there is a SELFOC lens array (trade name).

The timing belt 25 is wound around a pair of pulleys 27 on one side of the opening 11 and is provided with a pair of pulleys 27.
A part is fixed to one end of the carrier 22 between. Each of the pulleys 27 is rotatably supported by a bearing portion 20c (illustrated in FIG. 2) formed on an outer portion between the plate portions 20a of the frame 20, and one of the pulleys 27 is interposed via a reduction mechanism 28. It is adapted to be rotated by receiving the driving force of a driving motor 29 as a driving means. Therefore, by rotating the drive motor 29 forward and backward, the carrier 22
Together with the rod lens array 24 and the fluorescent tube 23 are reciprocally scanned in parallel with the instant film 6. The drive motor 29 is driven together with the fluorescent tube 23 by using the battery 18 as a power source. The drive motor 29 is connected to the printed circuit board 30 together with the fluorescent tube 23, and its operation is controlled via a drive circuit (not shown) incorporated in the printed circuit board 30. The printed circuit board 30 is fixed to the lower case 9 via a plurality of studs 31 and is located below the high surface portion 8c of the upper case 8 and above the battery housing portion 17. In addition, carrier 2
Limit switches SW1 and SW2 that are turned on by contacting the carrier 22 are provided at both ends of the scanning area of No. 2, and are driven via a drive circuit when either one of the limit switches SW1 and SW2 is turned on. The driving of the motor 29 is stopped and the fluorescent tube 23 is turned off.

The light-shielding film 26 has an intermediate portion fixed to the upper end portion of the carrier 22 via a fixing tool 32, and both end portions slidably abutted on the upper end portions of the plate portions 20a of the frame 20 so that the frame 20 can be prevented. To the outside between the plate portions 20a of the frame 20 and outside the space between the plate portions 20a of the frame 20.
It is stretched between the winding shafts 33 so as not to be loosened between the plate portions 20a of the frame 20 by being fixed to each other. Further, both side portions of the light-shielding film 26 are provided on the respective beam portions 20b of the frame 20.
Are slidably contacted with each other and stretched so as not to loosen between the beam portions 20b of the frame 20.

An opening 26a is formed in the light shielding film 26 at a portion facing the rod lens array 24, and the photosensitive surface 6a of the instant film 6 is formed from the rod lens array 24.
It is designed to block light except for the projection part. The winding shaft 33 is coaxially fixed to the shaft 27a of the pulley 27, and rotates together with the pulley 27. The diameter of the winding shaft 33 is set so that the shading film 26 can be wound without slack as the carrier 21 moves. That is, as shown in FIG. 5, the diameter d of the take-up shaft 33 is equal to the pitch circle diameter of the pulley 27 so that the maximum take-up diameter of the light-shielding film 26 around the take-up shaft 33 is the same as the pulley 2.
It is set to be slightly smaller than the pitch circle diameter D of 7. For example, when the light-shielding film 26 is wound around the winding shaft 33 for a maximum of three rounds, the diameter d of the winding shaft 33 is equal to that of the pulley 2.
It is set to a size obtained by subtracting the film thickness of three rounds of the light shielding film 26 from the pitch circle diameter D of 7.

A closed space 34 is formed between the light-shielding film 26 and the instant film 6, and the closed space 34 forms a photosensitive surface 6a of the instant film 6.
It is possible to reliably prevent unnecessary light from being incident on. That is, the light-shielding rib 8f as a light-shielding frame-shaped portion that is formed in a frame shape over the entire area around the opening 10 on the lower surface portion 8b of the upper case 8 and slidably contacts the light-shielding film 26 over the entire area around the opening 10. The light-shielding rib 8f forms a closed space 34 between the light-shielding film 26 and the instant film 6, and the closed space 34 causes unnecessary light to enter the photosensitive surface 6a of the instant film 6 from the periphery of the light-shielding film 26. Is surely prevented.

The light-shielding ribs 8f are the plate portions 20 of the frame 20.
The light-shielding film 26 is slidably brought into contact with one side of the light-shielding film 26 at a position displaced in the surface direction of the light-shielding film 26 with respect to the contacting portion of the light-shielding film 26 with respect to a and each beam portion 20b. May not slide,
Alternatively, unnecessary light does not enter the photosensitive surface 6a of the instant film 6 from the periphery of the light shielding film 26. That is, the facing portion of the light-shielding rib 8f to the light-shielding film 26 is defined as the plate portion 20a of the frame 20.
When the light-shielding film 26 is not displaced in the surface direction of the light-shielding film 26 facing the beam portions 20b, the light-shielding ribs 8f and the plate portions 20a of the frame 20 and the beam portions 20b are not provided. When the clearance is set to be small, the light shielding film 26 is sandwiched between the light shielding rib 8f and each plate portion 20a and each beam portion 20b of the frame 20 due to manufacturing error or the like, and thus the sliding is impossible. On the contrary, the light shielding rib 8
When the clearance between f and each plate portion 20a and each beam portion 20b of the frame 20 is set to be large, a gap is formed between the light shielding film 26 and the lower surface portion 8b of the upper case 8 so that Instant film 6
There is a possibility that unnecessary light may enter the photosensitive surface 6a of the light-shielding film 6a, and the light-shielding rib 8 for the light-shielding film 26 is provided so as to prevent such a situation.
The contact portion of f is arranged so as to be displaced in the plane direction of the light shielding film 26 with respect to the contact portion of the light shielding film 26 with respect to each plate portion 20a and each beam portion 20b of the frame 20.

On the other hand, the lid 4 is formed with an opening 4a for drawing out the instant film 6, and the instant film 6 is drawn out from the opening 4a. Further, the lid 4 has an operation switch 36 attached to the front surface thereof, and a leaf spring 37 and a pair of rollers 38 attached to the back surface thereof. Operation switch 36
Is connected to the printed circuit board 30 and is used as a drive switch of the drive motor 29 and a lighting switch of the fluorescent tube 23 via a drive circuit incorporated in the printed circuit board 30. The leaf spring 37 presses the film cassette 5 against the lower surface portion 8b of the upper case 8, and the pressing force holds the film cassette 5 in the frame-shaped portion 8d in the vertical direction without rattling. The pair of rollers 38 are provided so as to face the opening 4a and are used for automatic development of the instant film 6. That is, the instant film 6 is pulled out from the opening 4a through the pair of rollers 38, and the developing bag inside the instant film 6 is torn by this pulling operation, and the development is automatically performed.

One end of the lid 4 is rotatably supported by the upper case 8 of the case body 3 through a pin 39, and the other end thereof is supported by a lock lever 40.
It is locked to the upper case 8. The lock lever 40 is rotatably attached to the upper case 8 of the case body 3 via a pin 41 as shown in FIGS. 8 and 9, and engages with the lid body 4 at the rotational position shown in FIG. The body 4 is locked to the upper case 8 of the case body 3 so as not to be opened, and is released from the lid body 4 at the rotational position shown in FIG. 9 to allow the lid body 4 to be opened. In the opened state of the lid body 4, the frame-shaped portion 8d of the upper case 8 is inserted between the lid body 4 and the upper surface of the case body 3.
The film cassette 5 can be set inside. The lock lever 40 is formed with an opening 40a that allows the instant film 6 to be pulled out.

Next, the operation will be described. When copying the original image 2, the case 1 is placed on the original image 2 and aligned with the original image 2. At the time of alignment with the original image 2, if one side of the case body 3 is pulled up as shown in FIG. 7 while pressing the holding piece 14a of the position aligning panel 14, the case body 3 and the aligning panel 14 are separated from each other. Alignment panel 14
It can be aligned with the original 2 through the opening 15 in the.

After the alignment with the original image 2, the case body 3 is pushed down as shown in FIG. 8, and in this state, the operation switch 36 is pushed on. When the operation switch 36 is turned on, the fluorescent tube 23 is turned on via the drive circuit built in the printed circuit board 30 and the drive motor 29 is started. When the drive motor 29 is started,
Reduction mechanism 28, pulley 27 and timing belt 25
The carrier 22 is scanned from one end to the other end of the scanning area via the scanning area, and the reflected light from the original image 2 is successively incident on the rod lens array 24 in accordance with this scanning, and on the photosensitive surface 6a of the instant film 6. An image is formed and a latent image is formed on the photosensitive surface 6a of the instant film 6. At this time, as the carrier 22 moves, one end of the light-shielding film 26 is wound onto one winding shaft 33, and at the same time, the other end of the light-shielding film 26 is unwound from the other winding shaft 33. Instant film 6 with light-shielding film 26
The unnecessary light is prevented from entering the photosensitive surface 6a. Particularly, a light shielding rib 8f slidably contacting the light shielding film 26 around the opening 10 is formed on the lower surface portion 8b of the upper case 8 to form a closed space 34 between the light shielding film 26 and the instant film 6. Therefore, the closed space 34 also prevents unnecessary light from entering the photosensitive surface 6a of the instant film 6 from the periphery of the light shielding film 26.

When the carrier 22 reaches the other end of the scanning area and a latent image is formed on the entire photosensitive surface 6a of the instant film 6, the limit switches SW1 and SW2 are formed.
One of them is turned on, the operation of the drive motor 29 is stopped through the drive circuit incorporated in the printed board 30, the scanning of the carrier 22 is stopped, and the fluorescent tube 23 is turned off.

After that, when the instant film 6 is pulled out from the opening 4a of the lid 4 through the pair of rollers 38, the developing bag inside the instant film 6 is broken and the development and fixing are automatically carried out. The original image 2 is copied onto the instant film 6.

When the instant film 6 in the film cassette 5 disappears and the film cassette 5 is replaced, the lid 4 can be opened by rotating the lock lever 40 to disengage it from the lid 4. When the lid body 4 is opened as shown in FIG. 9, the lid body 4 and the case body 3 are
The film cassette 5 with the instant film 6 mounted thereon can be set between the lid body 4 and the upper surface of the case body 3 by taking out the film cassette 5 from the upper surface of the case body 3. After setting the film cassette 5, by closing the lid body 4 and then rotating the lock lever 40 to engage the lid body 4, the lid body 4 is locked and is not opened accidentally. The film cassette 5 is hermetically accommodated between the lid 4 and the upper surface of the case body 3.

As described above, in this embodiment, the lid 4 is provided on the upper surface of the main body case 3 so as to be openable and closable, and the film cassette 5 is detachably accommodated between the upper surface of the main body case 3 and the lid 4. Therefore, it is not necessary to provide a box-shaped cassette case as in the conventional case, and therefore, miniaturization is possible, the number of parts is small, there is no light leakage to the inside, and the light shielding property inside is improved.

Further, in this embodiment, the light shielding rib 8f slidably contacting the light shielding film 26 around the opening 10 is formed on the lower surface portion 8b of the upper case 8 to form the light shielding film 26.
Since a closed space 34 is formed between the instant film 6 and the instant film 6, unnecessary light is prevented from entering the photosensitive surface 6a of the instant film 6 from the periphery of the light shielding film 26 by the closed space 34. It is possible to reliably prevent unnecessary light from entering the photosensitive surface 6a.

Although the lid 4 is rotatably supported by the main body case 3 in the above embodiment, for example, the lid 4 is slidably attached to the main body case 3 and the lid 4 is slid to form a film. The cassette 5 may be detachable.

In the above embodiment, the frame-shaped portion 8d is formed on the upper surface of the main body case 3 and the film cassette 5 is housed and held in the frame-shaped portion 8d. A holding portion that detachably holds the cassette 5 may be formed, and the film cassette 5 may be held on the back surface of the lid body 4.

Further, in the above embodiment, the positioning panel 14 is rotatably supported by the main body case 3 via the pin 16, but the positioning panel 14 is slidably provided at the bottom of the main body case 3. The case 3 may be slid with respect to the alignment panel 14 to be aligned with the original image 2.

Further, in the above embodiment, the fluorescent tube 23 for illuminating the original image 2 is provided inside the main body case 3, but when the original image 2 is a transparent paper or the like, the original image 2 can be illuminated from the back side. As described above, the fluorescent tube 23 may be arranged outside the main body case 3.

[0036]

As described above, in the instant photocopier according to the present invention, the case is composed of the box-shaped main body case and the lid body, and the lid body is movably attached to the main body case to form the lid body. Since the film cassette is detachably accommodated between the upper surface of the main body case, the size can be reduced, the number of parts is small, there is no light leakage to the inside, and the internal light shielding property is improved. Have the effect.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an instant photocopier to which the present invention is applied.

FIG. 2 is a partially cutaway plan view of the case body of FIG.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a sectional view taken along line BB of FIG. 1;

5 is a partially enlarged sectional view of FIG.

6 is a partially enlarged sectional view of FIG.

FIG. 7 is a side view showing a state at the time of alignment with the original image.

FIG. 8 is a side view showing a state when an original image is copied.

FIG. 9 is a side view showing a state when the film cassette is attached and detached.

[Explanation of symbols]

 1 case 2 original image (subject) 3 case body 4 lid 5 film cassette 6 instant film 8f light-shielding rib (light-shielding frame portion) 10 opening (window) 11 opening (window) 14 positioning panel (positioning member) 24 rod lens Array (optical means) 26 Light-shielding film (light-shielding means) 29 Drive motor (drive means)

Claims (4)

(57) [Claims] 1. A case to be placed on a subject, a film cassette to which an instant film is attached and which is disposed in the case so that a photosensitive surface of the instant film faces the subject, and the case. Optical means arranged inside the case for forming an image of a small area of the subject on the photosensitive surface of the instant film, and driving means arranged inside the case for scanning the optical means in parallel with the instant film. And an instant photocopier, which is disposed in the case and which prevents unnecessary light from entering the photosensitive surface of the instant film, wherein the case is a box placed on a subject. It is composed of a main body case and a lid provided on the top of the main body case. A window which is transparent to light and is opposed to the optical means and the driving means, and the lid body is displaceably attached to the main body case so as to form an upper surface of the main body case. An instant photocopier, characterized in that the film cassette is removably accommodated therebetween. 2. The instant photocopier according to claim 1, wherein an illumination means for illuminating the subject is provided inside the main body case. 3. The instant photo system according to claim 1, wherein a positioning member having a positioning window through which the subject can be visually recognized is displaceably provided at the bottom of the main body case. Copying device. 4. The light shielding film according to claim 1, wherein the light shielding means moves together with the optical means to prevent unnecessary light from entering the photosensitive surface of the instant film, and the body case. An instant photographic copying apparatus, comprising: a light-shielding frame-shaped portion provided on an upper wall and slidably contacting the light-shielding film in the entire area around the window on the upper surface of the main body case.