JP2003302693A - Camera and transport apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a camera which restrains a photosensitized material from being unstably discharged, while allowing a reduction in diameter of a pair of rollers that feed the photosensitized material out of the camera as well as a transport apparatus which restrains a transported material from being unstably discharged, while allowing a reduction in diameter of a pair of rollers that feed the transported material out of the camera. <P>SOLUTION: An increase in interval between each roller gear fixed to a corresponding one of a pair of rollers and a corresponding one of two roller driving gears meshing with the respective roller gears is suppressed compared to an increase in interval between the roller gears, fixed to the respective rollers. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera for feeding a photographic photosensitive member after taking a photograph between a pair of rollers and sending it to the outside.
In addition, the present invention relates to a transport device that transports a sheet-shaped or web-shaped transported object by sandwiching it between a pair of rollers.

[0002]

2. Description of the Related Art Conventionally, sheet-shaped instant photographic films are loaded in a laminated state, and the loaded instant photographic film is photographed. There is known an instant camera that sandwiches and sends it to the outside (see, for example, Patent Document 1).

FIG. 1 is a view showing a part of a vertical section of such an instant camera.

FIG. 1 shows a camera housing 11 of an instant camera 1 and a plurality of unexposed instant photographic films 12.
The instant film pack 14 loaded inside the instant camera in a laminated state, the film discharge port 15 for discharging the instant photographic film after photographing to the outside of the camera, and the exposed instant photographic film A pair of unfolding rollers 3, 13 are shown driven to deliver to the outlet 15.

Each of the unexposed instant photographic films 12 in the instant film pack shown in FIG. 1 has an exposed surface on the right side and an image forming surface on the left side, as shown in FIG. The unexposed instant photographic film 12 has a developer pod 12a containing a developer at a position corresponding to the upper side in FIG. 1, and an excessive developer is collected at a position corresponding to the lower side in FIG. The trap 12d is provided.

FIG. 2 is a view showing a part of a rotating mechanism of the pair of developing rollers shown in FIG.

In FIG. 2, a pair of developing rollers 3 and 13 and
Gears 31, 131 fixed coaxially to each of the pair of deploying rollers and meshing with each other, and the deploying roller 1
3 shows a reduction gear 20 meshing with a gear 131 which is coaxially fixed.

Since the gear 131 meshes with the reduction gear 20 and also meshes with the gear 31, the driving force of a motor (not shown) is transmitted to the gear 131 via the reduction gear 20, and the gear 131 is fixed. Deploying roller 1
3 (shown on the front side of FIG. 2) is rotated and transmitted to the gear 31 meshing with the gear 131, and the gear 3
The developing roller 3 (shown on the other side in FIG. 2) to which 1 is fixed is also rotated. Deployment roller 3 shown on the other side of FIG.
Is biased by a spring (not shown) in the direction of being pressed against the developing roller 13 on the front side in FIG. 2, and the instant photographic film after shooting is sent out of the camera against the bias. Be done.

When an image is taken by the instant camera 1, the photographic light is exposed from the right side of FIG. 1 onto the exposed surface of the instant photographic film, and the instant photographic film after the photography is taken from the instant film pack 14 by a claw not shown. Be lifted. The film that has been pulled up is sandwiched between the developing rollers and sent out of the camera. At that time, the instant photographic film 12
The developing solution pod 12a provided in the sheet is torn between the developing rollers by being pressed. The instant photographic film after taking a photograph is developed by the developer flowing out from the cleaved developer pod 12a. The trap 12d described above contains an absorbent material (not shown) that absorbs excess developer and is not easily crushed, and is the thickest part of the instant photographic film.

[0010]

[Patent Document 1] Japanese Patent Application Laid-Open No. 11-31612

[0011]

In order to meet the recent demand for miniaturization of portable devices, it is possible to miniaturize the camera body by reducing the diameter of the developing roller and omitting unnecessary space. Conceivable.

However, if the diameter of the expanding roller is reduced, the distance between the axes of the expanding roller becomes narrower, so that the gears fixed to the expanding rollers coaxially and meshed with each other must be reduced in diameter. Along with this, gear teeth are forced to have a lower tooth height from the viewpoint of durability and the like, so that the meshing of the gears becomes shallow. In this case, the distance between the developing rollers is wider than when sending other parts of the film to send the part that is thicker than other parts of the film, such as a trap of instant photographic film, to the outside of the camera. As a result, the gears fixed to the developing rollers may be disengaged from each other, and the film may become unstable. Note that the above is a problem that occurs not only when the transported object is an instant photographic film, as long as the transported object that is sandwiched between the pair of rollers and transported does not have a certain thickness. .

In view of the above circumstances, the present invention aims to reduce the diameter of the pair of rollers for sending the photographic photosensitive member to the outside,
While suppressing the instability of the discharge operation of the photographic photosensitive member and the diameter of the pair of rollers for sending the transported object to the outside, suppressing the instability of the discharging operation of the transported object It is an object of the present invention to provide a carrier device having the above-mentioned structure.

[0014]

A camera of the present invention for achieving the above object is provided with a photographic photosensitive member, and a photograph is taken on the loaded photographic photosensitive member to obtain a photographic photosensitive member after the photographic exposure. In a camera that sandwiches a pair of rollers and sends it out, a pair of rollers that are urged in a direction in which one of them contacts the other and send out to the outside after sandwiching a photoconductor after taking a picture, and a driving force for the pair of rollers. A drive source for providing the two rollers, and two roller gears that are coaxially fixed to the two rollers that form the pair of rollers, respectively.
Two roller drive gears that mesh with each of the two roller gears and mesh with each other to transmit the driving force of the drive source to the meshed roller gears, and one roller drive of the two roller drive gears And a driving force transmission gear that meshes with the gear and transmits the driving force of the driving source to the meshed roller driving gear.

In the camera of the present invention, with the above-described structure, the roller gear fixed to each of the pair of rollers and the roller drive engaged with each of the roller gears due to the passage of the thick portion among the portions of the photographic photosensitive member. The gap between the gears can be kept smaller than the gap between the roller gears that are fixed to each pair of rollers, so the possibility of transmitting the driving force of the drive source to each pair of rollers has been increased. Can be higher than. Therefore, according to the camera of the present invention, it is possible to suppress the instability of the discharging operation of the photographic photosensitive member while reducing the diameter of the pair of rollers.

Here, the photographic photosensitive member is a sheet-shaped instant photographic film, the camera is loaded with the sheet-shaped instant photographic films laminated, and a photograph is taken on the loaded instant photographic film. It may be an instant camera that takes an image and takes the photograph and then puts the instant photographic film between a pair of rollers and sends it to the outside.

When the camera of the present invention is an instant camera, it is effective in transporting a portion of the instant photographic film called trap, which is thicker than other portions of the film, which absorbs excess developer, to the outside. .

It is also preferable that the drive source is a motor.

In this way, the present invention can be easily constructed.

The carrying device of the present invention for achieving the above object is a carrying device for carrying a sheet-like or web-like carried object by sandwiching it between a pair of rollers, and carrying it while sandwiching the carried object. Are urged in the direction of coming into contact with the other, a drive source for giving a driving force to the pair of rollers, and one roller fixed to each of the two rollers forming the pair of rollers. In addition, two roller gears, two roller drive gears that mesh with each of the two roller gears and mesh with each other, and transmit the driving force of the driving source to the meshed roller gears, and the two roller drive gears. A roller driving gear that meshes with one of the roller driving gears and that transmits the driving force of the driving source to the meshed roller driving gear.

With the above-described structure, the carrying device of the present invention has
Due to the passage of a thick portion among the parts of the transported object, the distance between the roller gears fixed to the pair of rollers and the roller driving gears meshing with the roller gears is increased, and the spread of the distance between the pair of rollers is increased. Since the distance between the fixed roller gears can be suppressed to be smaller than the spread of the distance, the possibility that the driving force of the driving source can be transmitted to each of the pair of rollers can be increased as compared with the conventional case. Therefore, according to the transporting device of the present invention, it is possible to suppress the instability of the discharge operation of the transported object while reducing the diameter of the pair of rollers.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.

FIG. 3 shows an embodiment of the camera of the present invention.
It is an appearance perspective view from diagonally above. It should be noted that the present embodiment also includes an embodiment of the transfer device of the present invention, and of the components provided in FIG. 3, those of the same type as those provided in FIG. The same reference numerals as in 1 are attached. Further, in the instant camera 10 of the present embodiment, a pair of developing rollers (see FIG. 4) provided for sending out the instant photographic film after taking a photograph are provided,
The diameter is smaller than that of the conventional developing roller shown in FIGS. 1 and 2.

The instant camera 10 shown in FIG. 3 is a relatively compact instant camera in which an instant film pack 14 in which instant photographic films are stacked is loaded and the instant photographic film in the instant film pack is photographed. Is.

The instant photographic film used in the instant camera 10 is discharged to the outside of the camera after the photosensitive surface is exposed to the photographing light, and the developing solution pod in the film is crushed during discharging and the developing solution is discharged. It is a mono-sheet type film unit that is treated as a single sheet from the time of unexposure to the time of image formation, which is developed and developed in a predetermined layer in the film, and the exposure surface and the image formation surface have different transmission. It is a mold film unit.

The instant camera 10 shown in FIG.
Is composed of a camera housing 11 and a camera body portion provided inside the camera housing 11. The front center portion of the camera housing 11 is used before and when the instant camera 10 is used. A cylindrical lens barrel 104, whose position is changed with respect to the camera body, is provided. A fixed focus type photographing lens 104a is fitted in the lens barrel 104.

FIG. 3 shows a state in which the lens barrel 104 is retracted to a retracted position which is a position before use. In the instant camera 10, the lens barrel 104 is moved from the retracted position. It is manually delivered to the delivery position (not shown) which is the position at the time of use.

A release button 105 is arranged on the front right side (left side in FIG. 3) of the camera housing 11, and when the release button 105 is pressed, the photographic light is exposed on the instant photographic film. It Also,
A protector 101 arranged in front of a flash unit (not shown) is arranged diagonally above the release button 105, and the left side (the right side in FIG. 3) of the protector 101 is reflected by the subject when the flash fires. Flash light receiving window 10 for guiding the flash light to a light receiving element (not shown) that receives the amount of the flash light that has returned.
2a is arranged. This flash light receiving window 102a
Below the light receiving window 102 for measuring the brightness of the field.
b is provided. Also, this instant camera 1
An inverted Galilean type finder is mounted on 0, and a finder objective window 103 is arranged at a position adjacent to the protector 101. Although not shown, a viewfinder eyepiece window (not shown) is also arranged on the rear surface of the camera housing 11 of the instant camera 10.

A film discharge port 15 is provided on the upper surface 111 of the camera housing 11, and from this, the instant photographic film after taking a photograph is discharged to the outside of the camera.

FIG. 4 is a perspective view from above of the instant camera shown in FIG.

FIG. 4 shows a pair of deploying rollers 21 and 22 provided in the instant camera 10, and both ends of shafts 21a and 22a inserted through the centers of the pair of deploying rollers 21 and 22, respectively. It is also shown that the camera housing 11 is pivotally supported.

Of the pair of developing rollers shown in FIG. 4,
The first deploying roller on the front side (left side in FIG. 4) of the camera
A first gear 121 is joined to the right end (upper end in FIG. 4) of the developing roller 21, and the first gear 121 meshes with a first drive gear 221 (see FIG. 5) described in detail later. .

On the other hand, a second gear 122 is joined to the right end of the second developing roller 22 which is the developing roller on the rear side of the camera (right side in FIG. 4). This second gear 122 will be described later in detail. It meshes with the second drive gear 222 (see FIG. 5).

Here, the portion 11a of the camera housing, which pivotally supports the shaft 22a of the second developing roller 22, has a long hole shape so that the shaft 22a can move in the front-back direction of the camera. Further, shaft support members 22b for supporting the shaft 22a separately from the camera housing 11 are inserted near both ends of the shaft 22a of the second developing roller 22, respectively. A spring 24 for urging 22a toward the front side of the camera (direction of arrow A) is provided. The spring 24 biases the shaft 22a of the second developing roller 22 toward the front side of the camera, so that the second developing roller 22 is pressed against the first developing roller 21 and moves between the developing rollers. The camera can be moved in the front-rear direction of the camera according to the thickness that changes depending on the portion of the exposed instant photographic film 25 that passes through.

FIG. 5 is a part of a perspective view of the rotating mechanism of the developing roller of the instant camera according to the present embodiment seen obliquely from the front.

FIG. 5 shows a state in which the rotating mechanism of the developing roller is seen through from the diagonally right front side of the instant camera 10. The first developing roller, which is the pair of developing rollers shown in FIG. 4, is also shown. 21 and the second developing roller 22,
The first gear 12 fixed to each of the pair of deploying rollers
1st and 2nd gear 122, and these 1st drive gear 221 and 2nd drive gear 2 which have meshed with these 1st gear 121 and 2nd gear 122, respectively.
22 and a reduction gear 200 that decelerates and transmits the driving force from the motor to the meshing second driving gear 222. In addition, as shown in FIG. 4, the first gear 121 and the roller 21 of the instant camera 10 have substantially the same diameter, and the second gear 122 and the roller 22 also have substantially the same diameter. In the present embodiment, the first gear 121 and the second gear 12 are used even when the film is not being fed.
No. 2 is not meshed.

FIG. 6 is a schematic view of the developing roller rotation mechanism as viewed from the right side of the instant camera of this embodiment.

FIG. 6 (a) shows an outline of the rotating mechanism in a state where the instant photographic film is not sent out to the outside of the camera, and FIG. 6 (b) is an instant photograph to the outside of the camera. The outline of the rotating mechanism in a state where the film is being fed out is shown.

In each of FIGS. 6A and 6B, the second gear 122 is on the upper left side, and the first gear 1 is on the upper right side.
21, the second drive gear 222 on the left side of the middle stage, the first drive gear 222 on the right side of the middle stage
The drive gear 221 and the reduction gear 200 are shown in the lower stage, and the spring 24 is attached to the second gear 122 on the left side of the upper stage.

Further, in each of FIGS. 6A and 6B, the motor 2 is provided below the reduction gear 200 shown in the lower stage.
01, the pinion 201b fitted in the rotating shaft 201a of the motor, and the transmission gear 202 for transmitting the driving force of the motor 201 to the reduction gear 200 are also shown.
For convenience of explanation, the motor 20 with respect to the reduction gear 200
Although the transmission of the driving force of No. 1 is shown as being performed only via the transmission gear 202, it is actually performed by a gear train composed of a plurality of gears.

In the instant camera 10 according to the present embodiment, the driving force of the motor 201 is transmitted through the pinion 201b, the transmission gear 202, and the reduction gear 200 as shown in FIG.
The driving force transmitted to the second drive gear 222 shown on the left side of the middle stage in FIG. 6A or FIG. 6B is transmitted to the second gear 122 on the left side of the upper stage and the second gear 122 on the right side of the middle stage. It is transmitted to the 1-drive gear 221. The driving force transmitted to the first driving gear 221 is further applied to the first right-side first upper gear.
It is transmitted to the gear 121.

Comparing FIG. 6A and FIG. 6B, it is found that the interval between the second gear 122 and the second drive gear 222 due to the feeding of the instant photographic film 25 is widened. And the distance between the first gears 121 is smaller than that of the first gear 121.

Therefore, according to the instant camera 10 of the present embodiment, the possibility of transmitting the driving force of the motor to each of the pair of deploying rollers at the time of discharging the film can be increased as compared with the conventional one, so that the pair of deploying rollers can be transmitted. It is possible to suppress the instability of the instant photographic film discharging operation due to the reduction in the diameter of the.

The instant camera 1 of this embodiment is also used.
At 0, the first gear, the second gear, the first drive gear, and the second drive gear are rotating in the directions of the arrows shown in FIGS. 6A and 6B, and the spring 24 is attached. The second gear 122 existing in the
Since the gear 121 is biased toward the gear 121, a spring having a less elastic force than conventional can be used by utilizing this biasing force.

The camera of the present invention has been described by taking an instant camera that directly exposes a photographic photosensitive member with subject light as an embodiment, but the present invention is not limited to this.
The camera of the present invention may be a camera of a type that once captures a subject image as image data and then exposes the photographic photoreceptor again.

Further, here, the case where the transporting device of the present invention is incorporated into an instant camera has been described as an example. However, even if the transporting device of the present invention is not a camera, for example, on an instant photographic film, It may be incorporated in a printer or the like that writes and conveys an image with a laser or the like, or is configured separately from the image writing device and used by being connected to the image writing device. Good.

The object to be conveyed by the printer or the conveying device is not a sheet-like instant photographic film, but such instant photographic films are continuously connected and formed in a web shape. It is also possible to use two gears 12 as shown in FIG.
It may be in the form of a web in which the distance between the first and the second portions 122 is expanded.

[0048]

As described above, according to the camera of the present invention, it is possible to suppress the instability of the discharging operation of the photographic photosensitive member while reducing the diameter of the pair of rollers. Further, according to the transporting device of the present invention, it is possible to suppress the instability of the discharge operation of the transported object while reducing the diameter of the pair of rollers.

[Brief description of drawings]

FIG. 1 is a diagram showing a part of a vertical section of a conventional instant camera.

FIG. 2 is a diagram showing a part of a rotating mechanism of a pair of deploying rollers shown in FIG.

FIG. 3 shows an embodiment of an instant camera of the present invention,
It is an appearance perspective view from diagonally above.

FIG. 4 is a perspective view from above of the instant camera shown in FIG.

FIG. 5 is a part of a perspective view of the rotating mechanism of the developing roller of the instant camera according to the present embodiment seen obliquely from the front.

FIG. 6 is a schematic diagram of a rotation mechanism of a developing roller as viewed from the right side surface of the instant camera according to the present embodiment.

[Explanation of symbols]

1, 10 instant camera 3, 13 Deployment roller 11 camera housing 11a part 12 Unexposed instant photographic film 12a Developer Pod 12d trap 14 Instant Film Pack 15 Film outlet 20,200 reduction gear 21 Second unfolding roller 21a axis 21b Shaft support member 22 1st deployment roller 22a axis 24 spring 25 Exposed instant photographic film 31, 131 gears 101 protector 102a Flash light receiving window 102b light receiving window 103 finder objective window 104 lens barrel 104a shooting lens 105 Release button 111 upper surface 121 1st gear 122 2nd gear 201 motor 201a rotating shaft 201b pinion 202 transmission gear 221 First drive gear 222 Second drive gear

Claims (4)

[Claims] 1. A camera after a photograph is taken in a camera in which a photographic photoreceptor is loaded, and a photograph is taken on the loaded photographic photoreceptor, and the photographic photoreceptor after the photography is sandwiched between a pair of rollers and sent out to the outside. A pair of rollers which are urged in a direction in which one of them comes into contact with the other, sandwiching the photoconductor between them, and a driving source for giving a driving force to the pair of rollers, and two rollers constituting the pair of rollers. 1 for each roller
Two roller gears, each of which is fixed coaxially, and two roller drive gears, which mesh with each of the two roller gears and mesh with each other, and transmit the driving force of the driving source to the meshed roller gears, respectively. A camera comprising a driving force transmission gear that meshes with one of the two roller driving gears and that transmits the driving force of the driving source to the meshed roller driving gear. 2. The photographic photosensitive member is a sheet-shaped instant photographic film, the camera is loaded with the sheet-shaped instant photographic films laminated, and a photograph is taken on the loaded instant photographic film. 2. The camera according to claim 1, which is an instant camera that carries out an instant photographic film after taking a picture by sandwiching it between a pair of rollers and sending it to the outside. 3. The camera according to claim 1, wherein the drive source is a motor. 4. A transport device for transporting a sheet-shaped or web-shaped transported object while sandwiching it between a pair of rollers, the pair of rollers being configured to transport by sandwiching the transported object, one of which is biased in a direction of being in contact with the other. Roller, a drive source for applying a driving force to the pair of rollers, and one for each of the two rollers forming the pair of rollers.
Two roller gears, each of which is fixed coaxially, and two roller drive gears, which mesh with each of the two roller gears and mesh with each other, and transmit the driving force of the driving source to the meshed roller gears, respectively. And a driving force transmission gear that meshes with one of the two roller driving gears and transmits the driving force of the driving source to the meshed roller driving gear.