JPH10123614A - Camera capable of housing a plurality of cartridges - Google Patents

Abstract

PROBLEM TO BE SOLVED: To continuously photograph frames of a number larger than the number of pieces photographable by one cartridge by constituting a camera so as to be capable of housing a plurality of cartridges. SOLUTION: In order to photograph a large number of pieces, a plurality of cartridges are housed, the cartridge is moved to a photographing screen, or a position opposed to an aperture one by one, and when the photographing is finished, it is replaced by the following cartridge. Film cartridges 4-6 are installed to a revolving holder 3. When a lid 6 is closed, a switch 15 is ON to rotate the revolving holder 3, and the end of a rotating phase detecting lever 14 is fallen into a notch 13. Then, the switch 15 is OFF to stop a revolving motor. At this time, the opening part 16 of the revolving holder 3 is turned so that a film 11 can get into the camera, a feed-out sprocket 27 is rotated counterclockwise, and the film is drawn to the right and automatically wound on a spool 34, and prepared for photographing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera which houses a plurality of cartridges and shoots many shots without changing a film.

[0002]

2. Description of the Related Art Conventionally, a long-winding film having a length of, for example, 100 ft is commercially available. There is a film back motor drive that can be used by repacking this into a special magazine to take 750 shots, or dividing it into three to take 250 shots. Since many pictures can be taken without changing the film, they have been used for long-time sports photography without dead time and for long-term observation recording of natural phenomena.

[0003]

However, these devices and films have many disadvantages. First, the trouble of putting the film in a special magazine in the darkness that is inconvenient, then the difficulty of loading it into the camera because it is larger than a normal magazine, the difficulty in removing it, and the usual Since a small tank cannot be used, a special developing device such as a developing plate or a rotating spool type is required, and even if an automatic developing device is used, measures must be taken to prevent exposure of the film until it is pulled into it. The processing required a lot of trouble.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has been made in consideration of the fact that a combination of standard length films is used to continuously photograph more frames than can be photographed by one cartridge. Aim.

[0005]

To achieve this object, a camera capable of accommodating a plurality of cartridges according to the present invention comprises a cartridge holder (3) capable of accommodating a plurality of film cartridges (4, 5, 6). A selection device (10) for selecting one cartridge (4, 5, 6) in the cartridge holder (3); and a cartridge (4, 5, 6).
Delivery device (2)
0), a switch (48, 49, 50) for switching the on / off state when the leading end of the film fed by the feeding device (20) comes into contact with or comes off, and a cartridge (4, 5, 6) for the film. A rewinding device (20) for returning to the inside.

[0006]

DETAILED DESCRIPTION OF THE INVENTION In the present invention, it is considered that the cause of the great labor required for preparation and post-processing is the use of a special dedicated magazine. I thought the problem would be solved. A general cartridge refers to a cartridge of about 72 shots or less, such as 135 film, thin 135 film, and 70 mm film. In order to take a large number of images, the camera stores a plurality of these cartridges, moves each cartridge one by one to the shooting screen, that is, the position facing the aperture, and replaces the next cartridge with the next cartridge when shooting is completed. I prepared for it.

In a camera capable of storing a plurality of cartridges having the above-described structure, although there are some time zones in which photographing cannot be performed, photographing can be performed almost continuously. of course,
These general-purpose cartridges are small and easy to load into a camera. In addition, since an automatic processing system and a large number of light room manual developing units are supplied in the market, post-processing is greatly simplified and in a short time. .

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

First, a description will be given of a process from loading a film to preparation for photographing a first frame of a first cartridge. In addition,
FIG. 5 shows a time chart from the time when the lid 2 is closed to the time when the preparation for capturing the second frame is completed.

[0010] First, the camera 1
Open the lid 2 (FIG. 1). As shown in FIG. 2, the plurality of film cartridges 4
Load 5, and 6. Here, 4, 5, and 6 are known film cartridges, for example, 135 film cartridges. Each of them has a film length capable of photographing, for example, 36 frames.

When the cover 6 is closed, the switch 7 (FIG. 3) is turned on in conjunction with the cover 6, and the control circuit 8
, The revolving motor 10 is rotated. The holder 3 rotates due to the meshing rotation of the motor gear 11 and the gear 12 of the revolving holder 3 (FIG. 4), and the tip of the rotation phase detection lever 14 falls into a plurality of notches 13 (FIG. 2). Then, the switch 15 which is turned on / off in conjunction with the rotation of the rotation phase detection lever 14 is turned off, and the control circuit 8
Stops the revolving motor 10 via the motor driver 9. At this time, the opening 1 of the revolving holder 3
Reference numeral 6 denotes a direction in which the film 17 can enter the camera 1, that is, a direction aligned with the film gate entrance 18. When the switch 15 is turned off, the control circuit 8 starts rotating the delivery motor 20 via the motor driver 19.

As shown in FIG. 4, when the motor 20 is turned to the right, the gear 21 also turns the lever 22, which slightly rubs against the gear, to the right, and the gear 23 meshes with the gear 24. Gear 2
4 rotates integrally with the gear 25, and the rotation is further transmitted to the gear 26. Accordingly, the delivery sprocket 27 turns left and engages with the perforations 28 of the film 17, and the film is drawn rightward in FIGS. When the cartridges 4, 5, and 6 are loaded into the revolving holder 3 from above in FIG.
The teeth 7 are detoured so that they can enter smoothly without being caught on the film 17. The recess 30 in FIG. 2 is for securing a passage in response to the film 17 expanding outward in the holder 3 by the taper guide 29.

On the other hand, when the switch 15 is turned off, the control circuit 8 operates according to the signal, and the spool motor 32 starts rotating via the motor driver 31. At this time, the spool 34 turns right via the transmission mechanism 33 in FIG. The film 17 is conveyed to the outer periphery of the spool 34 by the force of the feed motor 9, and is automatically wound on the spool 34 by a guide roller 35 known for automatic loading. The winding amount is measured by a measuring sprocket 36 and an encoder 37 attached thereto, and a control circuit 8 for taking the encoder.
Monitored by When an amount of encoder signal suitable for the first frame is detected, a stop command is issued to the motor drivers 19 and 31 by the operation of the control circuit 8 and the motor 20 is stopped.
And 32 stop. The preparation for shooting is now complete.

Next, the first photographing will be described. Hereafter, the shooting starts.

When a release button 38 shown in FIG. 4 is pressed, a switch 39 is turned on, and photographing starts. The aperture control circuit 40, the shutter control circuit 41, and the like sequentially operate as is well known, and photographing is performed. When the shutter close switch 42 (FIG. 3) is turned on by an interlock mechanism (not shown), the control circuit 8 , The spool motor 32 is rotated. At this time, the spool 34 turns right via the transmission mechanism 33 in FIG. The film 17 is wound on a spool. This winding amount is monitored by the measuring sprocket 36, the encoder 37, and the control circuit 8 for taking in the sprocket. When detecting the encoder signal corresponding to the feed amount for one frame, the control circuit 8 issues a stop command to the motor drivers 19 and 31, and stops the motors 20 and 32. At this time, the delivery sprocket 27 is rotated leftward by the movement of the film. So gear 2
With engagement of 6, 25, and 24, gear 24 is turned clockwise to extrude gear 23, and rotation of arm 22 disengages gear 24. Therefore, since the motor 20 is not interlocked even when stopped, the delivery sprocket 2
7 works effortlessly.

Next, the first rewind will be described.

When the photographing is completed to the end of the film, the film is rewound by a known method. For example, rewind switch 43
Is turned on, the control circuit 8 rotates the delivery motor 20 via the motor driver 19 by the signal. As shown in FIG. 4, the gear 21
Also turns the lever 22, which slightly rubs against this, to the left to engage the gear 23 with the gear 44. The gear 44 is a gear 45
, And the rotation is transmitted to the gear 46. Accordingly, the rewinding fork 47 turns left, and the film 17 is rewound leftward in FIGS. Although the configuration is omitted because it is publicly known, the opening 16 of the revolving holder 3 is not shown.
Is located near the film detecting switch 48, and when the film 17 is almost rewound into the cartridge 4, the switch 48 is turned on. As the completion state of the rewinding, a little tongue of the film 17 may remain,
Alternatively, it may be completely involved. The setting includes the design of the inertia of the rewinding system and the control circuit 8 with a switch 48.
Can be set by a known method such as providing a delay circuit that is activated by turning on the switch. The control circuit 8 operates by a signal interlocked with the switch 48, and the delivery motor 20 stops via the motor driver 19.

Next, preparation for photographing the second cartridge will be described. The film detection switch 48 is connected to the switch 4 for the film cartridges 5 and 6, respectively.
9 and 50 are provided. Films that have not yet been photographed are off because the tongue is above the switch projection. As described above, the state before and after the use can be determined by the state of the switch 48, 49, or 50.
Even if the film before and after use is mixed, the switch 4
By judging the state of 8, 49, or 50, only the unused film can be brought into the photographing state. The control circuit 8 operates the revolving motor via the motor driver 9 so that one of the openings 16, 51, and 52 of the revolving holder 3 for the unused cartridge is oriented in the same direction as the film gate entrance 18. 1
Turn 0.

The turning on of the switch 48 is a signal for stopping the rewinding of the first shot, and is also a signal for starting the preparation for photographing the second shot. Therefore, when the switch 48 is turned on, the revolving holder 3 rotates and the film is positioned as in the case of the cartridge 4. That is, the holder 3 rotates due to the meshing rotation of the motor gear 11 (FIG. 4) and the gear 12 of the revolving holder 3, and the tip of the rotation phase detection lever 14 falls into a plurality of notches 13 (FIG. 2). Then, the switch 15 that is turned on / off in conjunction with the rotation of the rotation phase detection lever 14 is turned off, and the revolving motor 10 is turned on by the control circuit 8 via the motor driver 9.
Stops. At this time, the opening 5 of the revolving holder 3
1, ie, the opening 16 in the cartridge 4
Is the direction in which the film 17 can enter the camera 1
That is, the direction is aligned with the film gate entrance 18. In this case, although the revolving holder 3 has turned rightward, the control circuit 8 rotates in a direction in which an unused film cartridge can be accessed with a minimum rotation angle.
It is good to set.

When the switch 15 is turned off, the control circuit 8 operates by the signal, and the feed motor 58 starts rotating via the motor driver. Although not shown, the motor 20,
Gear 21, lever 22, gear 23, gear 24, gear 2
5, the mechanisms of the gear 26, the sprocket 27, and the taper guide 29 are as many as the number of cartridges that can be loaded.
The motor 20, the motor 58, and the motor 59 correspond to the feed motor. However, the description of the process of putting the cartridge 5 into a usable state will be replaced with the repetition for the cartridge 4.

As shown in FIG. 4, when the motor 20 is turned clockwise, the gear 21 also turns the lever 22, which rubs lightly, clockwise, and the gear 23 meshes with the gear 24. Gear 2
4 rotates integrally with the gear 25, and the rotation is further transmitted to the gear 26. Accordingly, the delivery sprocket 27 turns left and engages with the perforations 28 of the film 17, so that the film is drawn rightward in FIGS. Hereinafter, the spool is automatically wound on the cartridge 5 similarly to the cartridge 4, and the preparation for photographing the first frame is completed.

The photographing of the second film is performed in the same manner as the first film. When all the frames of the film are photographed, the photographing is stopped by a known means. 2
The rewinding of the first film is performed in the same manner as the first film. When the film is rewound, the rewinding operation stops.

Next, the third one will be described. For the cartridge 6, the same process as that for the first and second cartridges is performed. If you proceed so far, switch 4
Any of 8, 49, and 50 are turned on, and the control circuit 8 can determine that there is no film that can be photographed. At this time, the control circuit 8 displays "EMPTY" on the display means 53 of FIG.
Give the display. Upon seeing this display, the photographer opens the lid 2 and takes out the cartridge.

During photographing, the number and number of cartridges may be displayed on the display device 53 shown in FIGS. The number may be written on the upper surface of the revolving holder 3 and the number may be displayed as a cartridge number. For the display device 53 and its control, a well-known LED
Alternatively, the driver 57 is used using an LCD or the like.

When information such as film sensitivity is attached to the cartridge, a detecting device, for example, an electric contact or the like is provided in each of the plurality of chambers of the revolving holder 3. The DX1 contact point 54, the DX2 contact point 55, and the DX3 contact point 56 shown in FIG. 3 can be used to transmit information unique to each cartridge to the camera 1 and the control circuit 8 even if different types of film cartridges are mixed. You can shoot without failure.

According to the above-described embodiment, a camera is provided with a cartridge holder capable of accommodating a plurality of film cartridges, a cartridge selecting device, a film feeding device for causing the film in the cartridge to face a photographing screen, and a film feeding device. Since the rewinding device for returning the cartridge into the cartridge is provided, the following effects can be obtained.

It is possible to continuously photograph more frames than can be photographed by one cartridge. Therefore, the chance of missing a photo opportunity is reduced, and the camera can be used for a longer time without film exchange, thereby expanding the use of the camera. Further, since a standard length film is used, the development and stretching processes are easy and special equipment is not required while having the above-mentioned effects.

Further, in the embodiment, since the cartridge holder is a rotary revolving holder, a rotary actuator such as a motor can be easily used as a drive source, and the operation efficiency is good. The operation is assured because the rotation phase can be easily detected with simple accessory parts.

If the cartridge holder is provided with means for detecting before and after the use of the film as in the present embodiment, only the film of the unused cartridge is sent to the camera and photographed. Therefore, the photographed film is not re-exposed accidentally. Therefore, a device for automatically winding a film, which may be mixed with a cartridge before and after use for foolproof, on a spool can be used as it is. Therefore, the operation is reliable and the cost is low.

Furthermore, since the rewind motor is provided in the holder, automatic rewinding is naturally possible. However, since the rewind motor is also used, both the holder and the camera are small and easy to use.

In addition, since film information and cartridge information detecting means are provided in the holder, even if films of different types and properties are mixed, failures such as exposure mistakes can be prevented.

[0032]

As described above, according to the camera of the present invention capable of storing a plurality of cartridges, it is possible to continuously photograph more frames than can be photographed by one cartridge. Therefore, the chance of missing a photo opportunity is reduced, and the camera can be used for a longer time without film exchange, thereby expanding the use of the camera.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a camera capable of storing a plurality of cartridges according to the present invention.

FIG. 2 is a sectional view showing an embodiment of a camera capable of storing a plurality of cartridges according to the present invention.

FIG. 3 is a block diagram showing an embodiment of a camera capable of storing a plurality of cartridges according to the present invention.

FIG. 4 is a perspective view showing an embodiment of a camera capable of storing a plurality of cartridges according to the present invention.

FIG. 5 is a time chart showing an embodiment of a camera capable of storing a plurality of cartridges according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Camera 3 Revolving holder 4, 5, 6 Cartridge 8 Control circuit 10 Revolving motor 15 Switch 18 Film gate entrance 20 Sending motor 27 Sending sprocket 32 Spool motor 37 Encoder 38, 49, 50 Film detecting switch 53 Display means 54 DX1 contact point 55 DX2 Contact 56 DX3 contact 58 Feed motor 59 Feed motor

Claims (5)

[Claims] 1. A cartridge holder capable of accommodating a plurality of film cartridges, a selecting device for selecting one of the cartridges in the cartridge holder, a feeding device for causing a film in the cartridge to face a photographing screen, and the feeding device. A camera capable of accommodating a plurality of cartridges comprising a switch for switching an on / off state when the leading end of the film sent out by the contact or separation comes into contact, and a rewinding device for returning the film into the cartridge. 2. The cartridge according to claim 1, wherein the cartridge holder is rotatable with respect to a camera body, and the cartridges are arranged on a circle centered on a rotation center of the cartridge holder. A stowable camera. 3. The photographing end of the film according to claim 1, wherein the switch detects that the film has been fed by the feeding device and the switch detects that the film has been rewound by the rewinding device. A camera capable of storing a plurality of cartridges characterized by detecting. 4. The camera according to claim 1, further comprising a motor for driving the feeding device, wherein the motor is also used as a driving motor for the rewinding device. 5. The information processing system according to claim 1, further comprising an information detecting means for detecting information described on the surface of the film or the cartridge, and an information searching means for searching for the information detected by the information detecting means. Camera that can store multiple cartridges.