JPS6019494B2 - instant photo camera - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a camera using a self-developing type sheet-like sensitive material.

Self-developing type sheet-like photosensitive materials and cameras using the sheet-like photosensitive materials, commonly called "instant photo cameras," have been in practical use for a long time. can be found in many patent specifications, etc.

For example, US Pat. No. 3,682,076 discloses a self-developing type sheet-like sensitive material having a bag storing a self-developing solution. After this sheet-like film is exposed,
When the photosensitive material is taken out of the camera, it is covered with a bag storing a developing solution, and the developing solution flowing out from the bag is sprayed onto the surface of the photosensitive material, thereby performing self-developing processing. A plurality of these sheet-like photosensitive films are stored one on top of the other in a film cartridge IJ, and the film cartridges are loaded into the exposure section of the camera together with the film cartridges. On the other hand, an instant photo camera using the film cartridge is disclosed in US Pat. No. 36,892.
As can be seen in Specification No. 62, etc., this camera exposes the sheet-like photosensitive strips in the film cartridge one by one, and when the exposure of the first sheet-like photosensitive layer is completed, the exposed sheet is The shaped photosensitive material is transferred from the camera's internal exposure section to the outside of the camera by a photosensitive material transfer mechanism. When the sheet-shaped photosensitive material is transferred to the outside of the camera by this photosensitive material transfer mechanism, the sheet-shaped photosensitive material passes between the pressure rollers of the photosensitive material transfer mechanism. When the sheet-like photosensitive material is suitable, the developing solution storage bag inside the sheet-like photosensitive material is torn by the pressure of the pressure roller, and the developing solution flows out from the bag onto the surface of the photosensitive material. When the sheet-like photosensitive film passes between the pressure rollers, the developing solution discharged from the storage bag onto the surface of the photosensitive material is evenly spread over the surface of the photosensitive material. It has become so. The photosensitive material transport mechanism is operated by an electric motor or manually, but it is difficult to evenly and evenly spread the developing solution over the surface of the photosensitive material during the self-developing process of a sheet-like photosensitive material of the self-developing process type. ,
This is extremely important to improve the quality of your photos. Therefore, in order to evenly and uniformly disperse the developing solution on the surface of the photosensitive material, it is necessary to pass the sheet-like photosensitive material between the pressure rollers at approximately the same speed. For this reason, even in conventional instant photo cameras, when the photosensitive material delivery mechanism is driven by an electric motor, the electric motor drives the photosensitive material delivery mechanism faster than the predetermined speed.
As a result, even if the sensitive material carrying out mechanism tries to quickly carry out the sheet-like sensitive material, the drive speed of the sensitive material carrying out mechanism is suppressed by the governor device. If it is not possible to drive the sample at a predetermined speed, no means is taken to prevent the transfer operation of the sample transfer mechanism. This is also the case when manually operating the photosensitive material transfer mechanism. Even if you manually operate the photosensitive material transfer mechanism and try to drive the photosensitive material transfer mechanism faster than the predetermined speed, the governor device will not release the photosensitive material. Although the drive speed of the carry-out mechanism is configured to be suppressed, if the photosensitive material carry-out mechanism is driven at a predetermined drive speed or less, there is no means to prevent the carry-out operation of the photosensitive material carry-out mechanism. It has not been carried out. In other words, in the conventional photosensitive material transfer device of this type of instant photo camera, when the photosensitive material transfer mechanism is driven by an electric motor or manually, the photosensitive material transfer mechanism transfers the sheet-like photosensitive material at a speed higher than a predetermined speed. Even if an attempt is made to do so, the driving speed is suppressed by the governor device, so the sheet will not be transported out at a speed higher than the predetermined speed. Since the unloading operation is not blocked, it is possible that the photosensitive material unloading mechanism unloads the sheet-like photosensitive material at a speed lower than a predetermined speed. When this photosensitive material transfer device is driven manually, the reason why the photosensitive material transfer mechanism is driven at a speed lower than the predetermined speed is due to the example of operating the camera. It is something that can be solved if a person pays a little attention. However, when the photosensitive material transfer device is driven by an electric motor, the main reason why the photosensitive material transfer mechanism is driven at a speed lower than the predetermined speed is due to a drop in the power supply voltage used. Not a few. In this case, it goes without saying that the operator should be aware of the drop in power supply voltage and take precautions to replace the power supply battery, etc.
Even if you are aware of the drop in power supply voltage, if you do not have a power supply battery ready to replace it, it cannot be said that the cause is entirely on the operator side. Therefore, in this type of instant photo camera, especially a type of camera in which the photosensitive material transport device is driven by an electric motor, it is checked whether there is a power supply voltage that can drive the electric motor at a predetermined speed.
The configuration should include a means for displaying it, and further,
A means for disabling the operation of the photosensitive material transporting device when the power supply voltage does not reach a predetermined voltage, and a means for manually driving the photosensitive material transporting device instead of being driven by an electric motor are provided. It is preferable to set it as a structure.

Also, the size of the photosensitive material used in this type of instant photo camera is much larger than that of 35 mm roll film, etc. Therefore, the shape of the instant photo camera is similar to that of a general camera that uses 35 mm roll film. The problem is that it is very large compared to other devices, and as a result, portability is very poor.

Therefore, in order to solve the problem of the size of the shape, conventional instant photo cameras generally connect the photographing lens section and the camera body with a bellows, etc., and when taking a picture, the bellows is extended. The length of the optical axis between the photographing lens section and the camera body is maximized to suit photography, and conversely, when not photographing, the bellows is contracted to bring the photographic lens section and camera body extremely close together, making the camera compact. A structure has been adopted to do so. As described above, it is very important to make an instant photo camera compact, and it is desirable to have a small number of batteries and a small size, even if only one power supply battery is required. Therefore, in order to minimize the space taken up by the power battery inside the camera, conventional instant photo cameras usually have only one power battery housed inside the camera, and this one power battery can be used to power other devices inside the camera. It's driving. For example, the only power battery housed in the camera is used not only to drive the photosensitive material transport device but also to drive the exposure control device. Even in an instant photo camera in which the photosensitive material transport device and the exposure control device are operated by a single power battery, as mentioned above, the power supply voltage to the electric motor that operates the photosensitive material transport device must be strictly controlled. Therefore, a power supply voltage check device is installed to check the voltage of the power supply battery, and if the voltage of the power supply battery does not allow the various devices of the camera to work properly, the operator must be instructed on how to handle the camera. It is desirable to have a structure that calls attention to the following. Therefore, this point has been taken into consideration in conventional instant photo cameras, and if the voltage level of the power supply battery cannot properly operate the photosensitive material transport device, all camera operations are disabled, and the camera is disabled. It is configured so that it cannot be used. However, in an instant photo camera in which the photosensitive material transfer device and the exposure control device are operated by a single power battery, the power supply voltage required to operate the photosensitive material transfer device is necessary to operate the exposure control device. However, even if the voltage level of the power supply battery cannot properly drive the photosensitive material transport device, it is also impossible to properly drive the exposure control device. Even if it is not possible to operate the photosensitive material transport device normally, the exposure control device that actually contributes to photographing is often at a level where it is possible to operate the exposure control device properly. Therefore, when the voltage level of the power battery is at a value that does not allow the photosensitive material transfer device to function normally, but is at a value that allows the exposure control device, etc. to function normally, the exposure control device, etc. cannot be operated by the power source battery. The operation of the photosensitive material transfer device is switched from an electric motor to a manual operation, that is, when the voltage of the power supply battery becomes lower than a predetermined voltage, the photosensitive material transfer device is operated at a voltage lower than the predetermined voltage. If you provide a means to prevent this from happening, and if the photosensitive material transfer device does not operate, you can manually operate the photosensitive material transfer device normally, even if the capacity of the power source has decreased. This avoids a situation in which photography cannot be taken at all, which is very desirable from a practical standpoint. In addition, in this type of instant photo camera, when charging the shutter, it is very troublesome to perform the shutter charging operation independently, so the shutter mechanism and the photosensitive material delivery device are generally linked together. The shutter charging of the shutter mechanism is configured such that the shutter charging is performed by the movement of the photosensitive material delivery device as the sheet-like photosensitive material is delivered.

When the trigger operation is triggered, the already charged shutter mechanism is first activated to release its charging force, and when the shutter mechanism is fully activated, the photosensitive material unloading device is activated next. Preset. When the photosensitive material carrying out device is operated, the shutter mechanism is charged again in conjunction with the operation of the photosensitive material carrying out device. This series of operations of the shutter mechanism and the photosensitive material ejecting device is such that when the charging force of the shutter mechanism is released, the photosensitive material ejecting device is activated next to eject one sheet of photosensitive material to the outside of the camera, and the charter mechanism is activated again. However, in this conventional instant photo camera, once the shutter mechanism is activated, even if the photosensitive material ejecting mechanism is activated next time, the sheet-like photosensitive material will be ejected outside the camera. It is not possible to perform an exposure method in which the shutter mechanism is charged again and the sheet-like photosensitive material that has already been exposed once by the previous operation of the shutter mechanism is exposed once again, that is, an exposure method called "multiple exposure" is not possible. It has no configuration. However, depending on the purpose of the camera, there are many cases in which an exposure method such as multiple exposure is desired, and even in this type of instant photo camera, it is useful for all types of applications to have a function that allows multiple exposure. This is highly desirable in terms of its usability. A first object of the present invention is to solve the problems in conventional instant photo cameras and to provide an instant photo camera that satisfies the above-mentioned functions required for this type of instant photo camera.

A second object of the present invention is to provide an instant photographic camera capable of uniformly applying a developing solution in a developing solution storage bag provided on a sheet-like photosensitive material to the surface of the photosensitive material. A third object of the present invention is to provide an instant photographic camera in which a light-sensitive material carrying device for carrying out a sheet-like light-sensitive material loaded inside the camera to the outside of the camera can be selectively driven by an electric motor or a manual drive. It is in.

A fourth object of the present invention is to provide an instant photographic camera in which a photosensitive material transfer device is driven by electrical power, in which the voltage of a power supply battery that drives the photosensitive material transfer device normally drives the photosensitive material transfer device. Check whether it is at a level where it can be done,
In addition to displaying the status, if the voltage does not exceed a predetermined level, the instant photo camera can automatically prevent the photosensitive material transport device from being driven by electric power and instruct the device to drive it manually. It is about providing.

A fifth object of the present invention is to provide an instant photographic camera that is configured so that a chatter mechanism can be charged by movement when the photosensitive material ejecting device is activated, and when performing multiple exposure, the photosensitive material ejecting device is activated. To provide an instant photographic camera which can prevent a sheet-like photosensitive material from being carried out of the camera even if the camera is loaded, and can only charge a chatter mechanism. A sixth object of the present invention is to provide a safety device to prevent manual operation of carrying out the sheet-shaped photosensitive material when the sheet-shaped photosensitive material is carried out using the power of a motor.
The object of the present invention is to provide an instant photographic camera in which manual operation of the material removal device is automatically switched to be possible only when the voltage of the power battery is not at a level that allows the material removal device to be operated normally. .

Hereinafter, some embodiments of the camera according to the present invention will be described in detail using the drawings.

FIG. 1 is an external perspective view of a camera according to the present invention.

In Figure 1, 1 is the camera body, IA is the camera base, IB is the finder frame, IC is the film cartridge loading/unloading frame, ID is the photographing optical system frame, and IE is the dark box frame. . The finder frame IB is fixed to the camera base IA, and the side range and finder windows IB, , I
B2 is provided. The film cartridge loading/unloading frame IC is hingedly engaged with the camera base IA at the hinge IG, and when loading/unloading the film cartridge, externally applies a rotation biasing force in the direction of arrow A in the figure with the hinge IG as a fulcrum. When it is attached more, it can rotate in the direction of arrow A using the hinge IG as a fulcrum, and can rotate to the position shown by 10 in Figure 1. In this state, the opening for loading and unloading the film cartridge on the camera base IA is exposed. Thus, the film cartridge can be inserted into and removed from the film cartridge storage chamber formed within the camera body 1. The frame IC for loading and unloading the film cartridge is also provided with a photosensitive material ejecting gate IC through which exposed sheet-like photosensitive material is ejected to the outside of the camera by loading and unloading the photosensitive material, which will be described later.

ID, is a lens body that carries the photographic lens ID2 and has a distance adjusting ring for adjusting the focus, and the lens body ID, is held by the photographic optical system frame ID. In addition to the shutter mechanism shown in FIG. 2, a known exposure adjustment mechanism (not shown), a distance adjustment mechanism (not shown), etc. are arranged within the photographic optical system frame ID. Reference numeral 2 denotes a manual operation lever used when manually operating the photosensitive material transport device shown in detail in FIG. It is fixed via 28.

2 is a lock installed on the manual operation lever 2.

When the manual operation lever 2 is not needed, it is buried in a lever storage recess IA provided at the bottom of the camera base IA, and can be used by pulling it up to the state shown in FIG. 1 before use. FIG. 2 is a perspective view showing the configuration of main parts arranged inside the camera according to the present invention.

Reference numeral 3 denotes a rotation shaft rotatably supported on the camera base IA together with the rotation plate 2A.The rotation shaft 3 and the rotation plate 2A are in a fixed relationship, and the manual operation lever 2 cannot be rotated. The rotating shaft 3 is rotated by this.

Reference numerals 4 and 5 denote rotating shafts that are rotatably supported on the camera base IA, and the rotating shafts 3, 4, and 5 are linearly arranged on the same D.

6 is a spur gear fixed on the rotating shaft 3, and 7 is a one-way clutch device.

The one-way clutch device is a known device per se,
7a is a ratchet wheel fixed to one end of the rotating shaft 3; 7b is a ratchet receiver fixed to one end of the rotating shaft 4;
is fitted within the ratchet wheel receiver 7b. Reference numeral 7c denotes a roller disposed within the ratchet wheel receiver 7b, and one roller 7c is disposed between each pawl of the ratchet wheel 7a.

7d is a coil spring disposed inside the ratchet wheel receiver 7b;
One end of the coil spring 7d is engaged with the pawl of the ratchet wheel 7a, and the other end is engaged with the pawl of the ratchet wheel 7a.

1 between each claw of the ratchet wheel 7a so as to be engaged with Tc.
The rollers 7a are brought into pressure contact with the pawl of the ratchet wheel 7a and the inner wall surface of the ratchet wheel receiver 7b. In this one-way clutch device 7, when the rotating shaft 3 is rotated clockwise, the rollers 7c bite between the pawl of the ratchet wheel 7a and the inner wall surface of the ratchet wheel receiver 7b, causing the ratchet wheel 7a to The rotation of the rotating shaft 3 is transmitted to the rotating shaft 4 via the receiver 7b, and on the other hand, when the rotating shaft 3 is rotated counterclockwise from the manual operation lever 2 side, the rotating shaft 3 receives a rotational force from the outside. When the rotational force is not applied and clockwise rotational force is applied to the ratchet wheel receiver 7b from the rotating shaft 4 side, the ratchet wheel 7a
Since the inner wall surface of the ratchet wheel receiver 7b applies an acting force in the direction opposite to the direction in which the rollers 7c bite between the pawls and the inner wall surface of the ratchet wheel receiver 7b, the force between the ratchet wheel 7a and the ratchet wheel receiver 7b is The configuration is such that the power transmission relationship is severed and the cooperative relationship between the rotating shafts 3 and 4 becomes invalid. A spur gear is fixed on the skin rotation shaft 4, and 72 is a one-way clutch device for controlling power transmission between the rotation shaft 4 and the rotation shaft 5. This one-way clutch device 72 has a configuration in which the direction of power transmission is exactly opposite to that of the one-way clutch device 7 disposed between the rotating shafts 3 and 4, and the clutch device 7,
It has the same configuration. That is, the clutch device 72
The ratchet wheel holder 7b is fixed to the other end of the rotating shaft 4, and the ratchet wheel 7a is fixed to one end of the rotating shaft 5. The direction of the claw of the ratchet wheel 7a is opposite to that of 7. Therefore, when the rotating shaft 5 is rotated clockwise, this clutch device 72
The rotation is transmitted to the rotating shaft 4, and conversely, when the rotating shaft 5 is rotated counterclockwise, or when the rotating shaft 5 is not rotated and the rotating shaft 4 is rotated clockwise, the rotation of the rotating shaft 4 is transmitted to the rotating shaft 4. The configuration is such that the information is not transmitted to 5. That is, the relationship between the clutch devices 7 and 72 is such that when the rotation of the rotating shaft 3 is transmitted to the rotating shaft 4, the rotation of the rotating shaft 4 is not transmitted to the rotating shaft 5, and vice versa. The relationship is such that when the rotation of the rotating shaft 5 is transmitted to the rotating shaft 4, the rotation of the rotating shaft 4 is not transmitted to the rotating shaft 3. 9 is a spur gear fixed to the other end of the rotating shaft 5.

1. A rotating shaft rotatably supported on the camera base IA. Spur gears 11 and 12 are fixed to both ends of the rotating shaft 10, respectively, and the gear 11 is always in mesh with the gear 9. It becomes.

13 is an electric motor fixedly installed on the power camera base IA;
A spur gear 14 is fixed to the motor shaft 13a of the motor 13, and the spur gear 14 is always in mesh with the gear 12.

14, 142 are spur gears fixed on a rotating shaft 16 which is rotatably supported on the camera base IA, and the gears 14, 142 are integrally formed of a synthetic resin material, and The gear 14 is always in meshing relationship with the gear 6.

15, 152 are spur gears installed on a rotating shaft 17 which is rotatably supported on the camera base IA, and the gears 15, 152 are integrally formed of synthetic resin material and 15, is always in mesh with the gear 152.

18 is a flat plate fixed to one end of the rotating shaft 17;
8 rotates together with the rotating shaft 17 when the rotating shaft 17 is rotated, and receives air resistance well during the rotation, so that the rotating shaft 1
7 is provided to play a role in rotating at a constant speed.

The gears 6, 14. , 142, 15, , 152 constitute a speed increasing gear mechanism, and when the manual operation lever 2 is manually rotated to rotate the rotating shaft 3, the rotation of the rotating shaft 3 is sequentially caused by the gears 6, 14. ,, 142, 15, , 152 to the rotating shaft 17, and the rotation of the rotating shaft 3 is transmitted to the speed increasing gear mechanism 6, 14, , 142, 15, , 152 and the flat plate 1.
Due to the interaction with 8, contract distance is maintained. 19
is a rotating shaft 2 rotatably supported on the camera base IA.
The gear 19 is a spur gear fixed to the shaft, and is always in mesh with the gear 8, and has a shield pin 19a.

Reference numeral 21 denotes a spur gear which is in constant meshing relationship with the gear 19, and 22 a disc. Details of the gear 21 and the disc 22 are shown in FIG.

That is, FIG. 3 is a plan view for explaining the configuration that enables multiple exposure in the camera according to the present invention, in which the gear 21 is connected to the camera base IA and the shaft holding member 24 fixed to the camera base IA. It is fixed to a rotating shaft 23 which is held so that it can rotate and rotate in any direction. Further, the disk 22 is rotatably supported on a rotating shaft 23 and is regulated by the camera base IA so as not to move in the direction of the ball, and the surface 1 that does not correspond to the gear 21 is provided with a long pin. 22a and short pin 22b are each provided as a shield. A pin 25 that can engage with the short pin 22b of the disc 22 is implanted on the rotating shaft 23, and a compression coil spring 26 is disposed between the pin 25 and the shaft holding member 24. . The spring 26 is used to always bias the rotating shaft 23 in the left direction in FIG. The rotary shaft 23 is moved to the left until the pin 25 of the disc 22 comes into contact with the disc 22 (the position shown by the solid line), and the pin 22b of the disc 22 and the pin 25 of the rotary shaft 23 are brought into engagement. none,
Also, when a force is applied to the rotating shaft 23 from the direction of arrow C to overcome the biasing force of the spring 26, the pin 25 is at a position where it does not engage with the pin 22b of the disc 22 (indicated by a dashed line, and the corresponding part number is " It is designed so that it can be moved to the position shown with a dash. When the rotating shaft 23 is in a position where the pin 25 and the pin 22b can engage with each other as shown by the solid line in FIG.
Furthermore, when the rotating shaft 23 is moved to a position shown by the dotted silver line in FIG. 3 where the pin 25 and the pin 22b cannot engage, the rotation of the gear 21 is not transmitted to the disk 22. , gear 2
1 and the rotating shaft 23 rotate, the disk 22 does not rotate, and this mechanism is provided to perform multiple exposures. 27 causes sliding displacement of the rotating shaft 23;
This is a shooting mode switching member for switching between multiple exposure shooting and normal exposure shooting, and the member 27 is rotatably supported on a pivot 29 fixed to the camera base IA, and the pressing part 27a and the switching Stopper section 27b and click stop section 2
It consists of 7c.

Click stop portion 27 of the photographing mode activation member 27
c is provided with a stop portion 27c for normal exposure photography and a stop portion 27c2 for multiple exposure photography. 2
Reference numeral 8 denotes a click spring with one end fixed to the camera base IA and a free end.The free end side of the click spring 28 is always pressed against the click stop part 27c and corresponds to the engaging part 28a. When the switching member 27 is operated by operating the locking portion 27b protruding outside the camera body 1 so that the stop portion 27c of the switching member 27 comes to the position, the engaging portion 28a falls into the stop portion 27c, and the switching member 27 in that state, and conversely, when the stop portion 27c2 is engaged at a position corresponding to the engaging portion 28a of the click spring 28 by operating the locking portion 27b, the stop portion 27c
The engaging portion 28a falls into the 2 and holds the effective member 27 in that state.

The engaging portion 28a and the stop portion 27 of the click spring 28
When the switching member 27 is engaged, the switching member 27 is rotated counterclockwise about the shaft 29, and the pressing portion 27a of the switching member 27 is engaged with the rotating shaft 23 as shown in FIG. Click spring 2 does not apply force in the direction of arrow C inside.
In the state in which the engaging portion 28a of No. 8 and the stop portion 27c2 are engaged, the switching member 27 is rotated clockwise about the shaft 29, and the pressing portion 27a of the switching member 27 is rotated around the rotation shaft. A force in the direction of arrow C in FIG. 3 is applied to 23 to release the engagement between the rotating shaft 23 and the disc 22. Mitsukawa is a spur gear fixed to a rotating shaft 31 rotatably supported on the camera base IA, and the gear 30 is always in mesh with the gear 21.

32, 322 are spur gears mounted on a rotating shaft 33 which is rotatably supported on the camera base IA, and the gears 32, 322 are integrally formed and the gear 3
2 is in constant meshing relationship with the gear 30.

Reference numeral 36 denotes a spur gear fixed to a rotating shaft 37 which is rotatably supported on the film cartridge loading/unloading frame IC.
When C is in the state shown by the solid line in FIG. 1 with respect to the camera base IA, it is in mesh with the gear 35, and when it is in the state shown by the dashed line, it is in the film cartridge loading/unloading frame. It moves together with the IC and is disengaged from the gear 35.

Reference numerals 38 and 39 denote a pair of rollers for carrying out a photosensitive material rotatably supported on the frame IC for loading and unloading a film cartridge; The sheet-like photosensitive material that has passed through the station is transported to the Sekiguchi IC. It is placed in a position that is more convenient for carrying out.

A gear 31 is fixed to one end of the roller 38, and the gear 31 and the gear 36 are always in mesh with each other. Further, rollers 3 are provided at both ends of the roller 39.
9 and the roller 38 to provide a suitable gap for the sheet-like sensitive material to pass through, and to rotate the loaf 38 when the roller 38 rotates.
? 392 has been installed, and this suba roller 3
91 and 392 are made of a material having a large friction coefficient, such as rubber, so that the rotation of the roller 38 is preferably obtained. Further, the gap provided between the rollers 38 and 39 is such that when a self-developing type sheet sensitive material having a bag containing a self-developing solution is passed between the rollers 38 and 39, the gap between the rollers 38 and 39 is Roller 38 removes the developing processing solution bag inside the photosensitive material.
It is set so that it can be torn by the pressure of 39 and 39, and the developing solution flowing out from the bag can be sprayed onto the photosensitive surface. The base plate 40 of the film cartridge storage chamber is fixed to the camera base IA.

The main plate 40 has side wall plate portions 40, 402, 40 on three sides excluding the portion where the film cartridge 41 is loaded/unloaded.
3, and the side wall plate portion 40 is provided with a film.
A regulating bent portion 40,a is formed to prevent the film cartridge 41 loaded in the cartridge storage chamber from moving upward, and these side wall slope portions 40,
, 402 and 403, the film cartridge 41 loaded in the film cartridge storage chamber is positioned. Inside the film cartridge 41, a plurality of sheet-like photosensitive materials 42 of a self-developing type having a bag storing a self-developing solution as disclosed in U.S. Pat. No. 3, No. 2076, for example, are stacked. At the same time, the film cartridge 41 is provided with a photosensitive material outlet 41a for taking out the exposed sheet-like photosensitive material 42, and a member for pushing out the exposed sheet-like photosensitive material 42 from the photosensitive material ejecting port 41a. Notch portion 41b and sheet-like sensitive material 42
An exposure gate 41c is formed for exposing. or,
At the bottom of the film cartridge 41, a biasing means, such as a leaf spring, is provided to press the plurality of sheet-like sensitive materials 42 stacked and stored in the film cartridge 41 toward the exposure opening 41c. When the exposed uppermost sheet-like photosensitive material 42 is taken out from the post-exposure photosensitive material outlet 41a, the next sheet-like photosensitive material 42 is displaced upward by the urging force of the urging means, which is preferable. The photosensitive material outlet 41a is automatically moved to the exposure position, and the photosensitive material outlet 41a
The size of the sheet-like photosensitive material 42 is regulated so that only one photosensitive layer can be taken out in one photosensitive material removal operation. Reference numeral 43 designates a photosensitive material outlet 41a through which the sheet-like photosensitive material 42 stored in the film cartridge 41 is taken out one by one.
The sheet-like photosensitive material 4 is taken out from the sheet using rollers 38 and 39.
This board 43 is a board for a preliminary unloading device for the sheet-like sensitive material 42 for transporting the sheet-like sensitive material 42 to a position where the leading end of the sheet-like material 42 is held.
A guide hole 43a extending in the unloading direction, a regulating bent portion 43b for regulating upward displacement of the film cartridge 41 loaded in the film cartridge storage chamber, and a shield provided on the disc 22. An engaging portion 43c that is engaged with the long pin 22 and a bent portion 43d that is engaged with one end of the tension spring 44 are provided.

The substrate 43 is disposed such that the indoor elongated hole 43a engages with the pin 42 installed in the side wall plate portion 402 of the base plate 40, and the elongated hole guides the sheet-like sensitive material 42 in the direction of conveyance. 43a and shield pins 42, allowing it to slide. The spring 41 has one end connected to the bent portion 4 of the base plate 43.
3d, the other end is engaged with a pin 45 provided on the base plate 401, and is used to constantly bias the substrate 43 in a direction opposite to the direction in which the sensitive material is carried out. . 46
When the film cartridge 41 is loaded into the film cartridge storage chamber, the set piece 48 is attached to the bent portion 43b of the base plate 43 so as to be disposed within the notch 41b of the film cartridge 41. A plate spring 46 is fixed for carrying out the photosensitive material, and a friction member 47 made of rubber or the like having a large coefficient of friction is attached to the surface of the plate spring 46 that corresponds to the sheet-like photosensitive material 42 .

The friction member 47 is pressed against the sheet-like sensitive material 42 in the film cartridge 41 by the leaf spring 46, and when the substrate 43 slides in the unloading direction, the film
The sheet-like photosensitive material 42 located at the top of the cartridge 41 is conveyed toward the photosensitive material outlet 41a.
The tip of the sheet-like sensitive material 42 carried out from a is the roller 3
It will slide until it is kept in autumn between August 8th and 39th. The sliding movement of the substrate 43 is performed by rotation of the disc 22. That is,
The long pin 22a of the disk 22 and the engaging portion 43c of the substrate 43 are arranged such that when the long pin 22a rotates due to the rotation of the disk 22, the engaging portion 43 of the substrate 43 is in a position where it engages with the long pin 22a.
c is located, and the long pin 22a rotates to engage the engaging portion 43.
When the board 43 is engaged with the long pin 22a, the long pin 22a presses the board 43 in the unloading direction, and this pressing force causes the board 43 to slide until the long pin 22a and the engaging portion 43c are disengaged. Reference numeral 49 denotes a swingable shutter charge lever fixed to a shaft 501 which is rotatably supported on the camera base IA, and one end 49a of the lever 49 engages with a part of the front curtain of the shutter, which will be described later. It has grown as far as possible,
The pond edge 49b is bifurcated.

The branches 490 and 49Q of the other end 49b of the lever 49 are connected to the gear 1.
It is arranged within the rotation locus of the coffin pin 19a on the top 9,
When the shield pin 19a touches the branch 49b, the pin 19
By pressing a, the lever 49 rotates counterclockwise about the shaft 50, and conversely, when the shield pin 19a supports the branch 49Q, the lever 49 rotates clockwise.
The lever 49 is always biased clockwise by a tension spring 52, which has one end engaged with the lever 49 and the other end engaged with a pin 51 mounted on the camera base IA. A spur gear 53 is fixed to a rotating shaft 55 rotatably supported on the camera base IA, and the gear 53 is always in mesh with the gear 8.

Reference numeral 54 denotes a disc-shaped cam member fixed on the same rotating shaft 55 as the gear 53, and a recess 54a is formed in a part of the circumferential surface of the cam member 54.

56 is a shaft 5 rotatably supported on the camera base IA.
A swingable transport motor control lever is interposed at 7, and the lever 56 has one end engaged with the lever 56 and the other end engaged with a Tachibana pin 58, which is mounted on the camera base IA. It is constantly urged to rotate clockwise by a tension spring 59, one end 56a of which extends to a position where it can engage with a portion of the rear curtain of the shutter, which will be described later, and the other end 56a.
b is always in contact with the circumferential cam of the cam member 54.

SW2 is an open/close switch for controlling the power supply to the motor 13, and the switch SW2 is closed by the pressing force of the lever 56 when the lever 56 moves counterclockwise, and conversely, the lever 56 is closed by the pressing force of the lever 56 when the lever 56 moves counterclockwise. The member 54 is fixed to the camera base IA in such a manner that it is placed in a position where it is opened when the member 54 falls into the recess 54a and moves clockwise. Reference numeral 60 indicates a front curtain that constitutes a shutter device disposed within the photographic optical system frame ID, and 61 indicates a rear curtain.

Reference numeral 62 denotes a shutter shaft holding plate for guiding the sliding movement of the shutter curtains 60 and 61, and the holding plate 62 has a regulating bent portion 62.
a and 62b.

The shutter front curtain 60 has an exposure gate 60a, an engaging part 60b that can be engaged with one end 49a of the shutter charge lever 49, a switch control part 60c, and a spring engaging part 60d. A tension spring 66 has one end engaged with a pin 63 provided on the frame ID of the photographing optical system frame ID, and the other end engaged with a pin 64 provided on the engagement portion 60d of the leading curtain 60. It is always biased to move leftward in FIG. Further, the shutter rear curtain 61 is arranged so as to overlap the front shutter curtain 60, and includes an exposure gate 61a, a bent portion 61b, a spring engaging portion 61c, and one end 56 of the transport motor control lever 56.
one end is engaged with a pin 65 provided as a shield on the photographic optical system frame ID, and the end thereof is engaged with an engagement portion 61c of the rear curtain 61. A spring 66 engaged with a pin 67 provided in a shield is always biased to move leftward in FIG. 3. -68 is a pin installed on the rear curtain 61, and when the front curtain 60 is returned to the right in FIG. This is to ensure that Reference numeral 69 denotes a swingable locking bar rotatably supported on the photographing optical system frame ID, and a stopper pin provided at one end of the locking bar 69 is provided with a shutter front curtain 60'. 71 and forcibly hold the front curtain 60 and the rear curtain 61 in a spring-charged state with the springs 63 and 66; It has extended into the IA.

Reference numeral 72 denotes a stopper pin for regulating the amount of rotational displacement of the locking bar 69 in the counterclockwise direction, and the pin 72 is provided as a shield on the photographing optical system frame ID.

One end of the locking bar 69 is engaged with a pin 77 installed in a shield on the photographic optical system frame ID, and a tension bar 69 is engaged with a pin 77 installed in a shield on the bar 69. It is constantly urged to rotate counterclockwise by a spring 76. 7
Reference numeral 3 denotes a lever rotatably supported on the locking lever 69 by a pin 74 provided on the locking bar 69; Pin 75 talked about
The pin 7 has an engaging claw 73a that is engaged with the bar 69, and the pin 7 has one end that is engaged with the pin 73a that is engaged with the end 69b of the bar 69.
The other end of the tension spring 78 is engaged with the lever 73, and the lever 73 is always urged to rotate clockwise.

A trigger member 80 is slidably held on the camera base IA, and a trigger button IF protruding outside the camera base 1 is arranged at one end of the trigger member 80.

The trigger member 80' includes a hammer pin 81 for controlling the trigger switch SW3, a shield pin 82 for controlling the levers 69 and 73, and a spring engagement pin 83.
and is provided. Pin 83 of the trigger member 80
is engaged with the end of a tension spring 84 whose one end is engaged with the camera body IA, and this spring 84 causes the trigger section 80 to always move in the direction in which the trigger button IF protrudes from the camera body 1. is energized by Further, the pin 81 of the trigger member 80 is arranged so as to close the switch SW3 when the trigger button IF is pushed inward to the camera body 1.
2 is disposed at a position where it comes into contact with the lever 73 when the trigger button IF is pressed inward to the camera body 1 and can rotate the lever 73 clockwise. For Mg, when the trigger button IF is pressed, pin 7 on the shutter front curtain 60
1 and the locking claw portion 69a of the locking bar 69 is released and the shutter front curtain 60 runs, the shutter rear curtain 61 is kept at the position where the spring 66 is charged (the second This is an electromagnetic magnet for holding the device in the position shown. The front shutter curtain 60 and the rear shutter curtain 61 are such that the front shutter curtain 60 runs first, and then the rear shutter curtain 61 runs after a predetermined time.
Only the shutter front curtain 60 is the regulating bent part 6 of the retainer plate 62
2b and in the state of running until support, the shutter front curtain is 60
The opening 60a of the shutter rear curtain 61 overlaps with the opening 61a of the shutter rear curtain 61, and the exposure surface of the sheet-like photosensitive layer 42 can be exposed. When the shutter is moved until they touch, the Sekiguchi 60a of the front shutter curtain 60 and the opening 61 of the rear shutter curtain 61 are moved again.
b are shifted from each other so that external light is again blocked from entering the exposed surface of the sheet-like sensitive material 42.

FIG. 4 is a control electrical circuit diagram applied to the camera according to the present invention.

In FIG. 4, members marked with the same numbers and symbols as those shown in FIGS. 1 to 3 are corresponding members. In Figure 4, 100 is a power supply battery, SW3
is the switch shown in FIG. 2, and the switch SW3 is engaged with the pin 71 on the shutter front curtain 60 immediately before the engagement of the engagement claw 69a of the bar 69 is released when the trigger button IF is pressed. It is provided at a position that can be opened by the pin 81 of the trigger member 80, and also functions as a main switch. 101 is a photovoltaic photoelectric conversion element, for example, a silicon photodiode.

102 is a high input impedance operational amplifier, 103 is a capacitor for second time integration connected between the input and output of the amplifier 102, and 104 is a voltage power supply for bias level setting, SWI
is the switch for starting the seconds count shown in Figure 2,
The switch SWI is for discharging the capacitor 103.

Reference numeral 105 denotes a Schmitt trigger circuit for controlling the energization of the electromagnetic magnet Mg shown in FIG. Photoelectric conversion element 1 generated depending on the brightness of
The electromagnetic magnet Mg is allowed to be energized until the photocurrent of 01 is supplied and the output voltage of the operational amplifier 102 becomes equal to or higher than the trigger level of the Schmitt trigger circuit 105, and the output voltage of the operational amplifier 102 reaches the trigger level. When the trigger level of the Schmitt trigger circuit 105 is reached, it is reversed to cut off the energization to the electromagnetic magnet Mg.

That is, the photoelectric conversion element 101 and the operational amplifier 102
, capacitor 103, bias level setting voltage power supply 104, Schmitt trigger circuit 105, switch SW
1. Type with excitation magnet Mg.

This side light seconds control circuit device controls the time from when the front shutter curtain 60 runs until when the rear shutter curtain 61 runs next, that is, when the front shutter curtain 60 runs. Sekiguchi 6 of closing door 60a and shutter rear curtain 61
1a overlaps with each other to set the time during which the sheet-like sensitive material 42 is exposed, and this is a well-known configuration in electric shutter devices. 111, 112,
115, 117, 118, 119, 120, 123 are resistors, 107, 108, 109, 110, 121, 12
2 is a transistor, 116 is a comparator, and these constitute a power supply voltage check circuit.

1 and 12 are resistors, 113 are capacitors, and 1 and 14 are bell detection circuits, which are used to detect whether the motor 13 can normally operate the camera when the electromagnetic magnet Mg is de-energized. 1 time constant circuit is formed.

124, 125 are transistors, 126, 127, 1
28, 129 are resistors, 13 Kawama capacitors, 131
are diodes, and these constitute a latch circuit.

138 is a resistor, 139 is a capacitor, and 140 is a bell detection circuit, which form a second time constant circuit for counting the time during which the motor 13 is energized. 134,
141 is a transistor for controlling energization to the motor 13, and SW2 is a switch shown in FIG. When the lever 56 is turned counterclockwise and the lever 56 is rotated counterclockwise, the lever 56 is rotated counterclockwise.
This is a motor control switch that is closed by pressing 6.

132 is a light emitting diode for display mounted on the output end of the power supply voltage check circuit; 133 is a light emitting diode 13;
This is a resistor connected in series with 2.

The light emitting diode 132 is arranged at a position where its light emitting state can be visually confirmed from the viewfinder IB, and emits light to warn when the power supply voltage checked by the power supply voltage check circuit is below a predetermined level. . 1
35 and 136 are transistors for controlling the start of counting of the second time constant circuit.

Reference numeral 141 denotes a switching transistor that turns off when the second time constant circuit completes counting, thereby cutting off the power supply to the motor 13.

143 is a resistor, 144 and 145 are transistors, 1
46 is a diode, these are mechanical switches S
It constitutes a brake circuit for abruptly stopping the rotation of the motor 13 when W2 is opened.

The overall operation of the camera according to the present invention constructed as described above will now be explained using FIGS. 1 to 4.

The camera according to the present invention has a function that allows multiple exposure, but multiple exposure will be explained later, and first, normal exposure, which is only one exposure, will be explained. Therefore, in the case of normal exposure, the sliding member 27 is rotated about the pin 29 and is in the state shown in FIG. 2 in which the engaging portion 28a of the click spring 28 and the stop portion 27c2 are engaged. In this state, the pressing portion 27a of the switching member 27 is in a position separated from the rotating shaft 23. Therefore, the rotating shaft 23 is displaced to the left in FIG. 3 by the pressing force of the subring 26, and when the rotating shaft 23 is rotated, the pin 25
The short pin 22b of the disc 22 rotates together with the short pin 22b of the disc 22. Further, the state shown in FIG. 2 shows the state just before the shutter charging of the shutter leading curtain 60 and the shutter trailing curtain 61 is completed, and the completion of the shutter charging coincides with the branch 490 of the shutter charging 49. The pin 19a on the gear 19 is at this position, and the lever 49 is rotated counterclockwise about the pin 50, which completes the rotation. In the state where shutter charging is completed, the engagement between the pin 71 on the shutter front curtain 60 and the locking claw portion 69 of the locking lever 69 is not released.
When the trigger button IF is pressed down, the pin 81 on the trigger member 80 closes the switch SW3.

When this switch SW3 is closed, the voltage of the power supply battery 100 is checked. The power supply voltage check here is to check not only whether the voltage of the power supply battery 100 can drive the motor 13 normally, but also whether the side light time control circuit device can operate normally using the resistors 117 and 118. , is performed by the comparator 116. That is, when the voltage of the power supply battery 100 is above the voltage level that allows the side light time control circuit device to function normally, when the switch SW3 is closed, the inverting input terminal of the comparator 116 is connected to the constant voltage power supply. 10
4, the comparator 116 is not inverted and the transistors 122, 124, 125 are turned off) and the light emitting element 132 does not emit light. It can be confirmed that the voltage is at least at a level that allows the side light time control circuit device to operate normally. On the other hand, the power supply battery 10
0 voltage is not at a level that allows the side light control circuit to operate normally, when switch SW3 is opened, the inverting input terminal of the comparator 116 becomes lower than the non-inverting input terminal, so the comparator 116 116 is inverted, transistors 122, 124, and 125 are turned on, and the light emitting element 132 emits light, warning the operator that the level is such that the sidelight time control circuit cannot operate normally, and the power source battery 10
0 to a new one or stop using the camera. When the switch SW3 is closed by pressing down the first stage trigger button IF and the light emitting element 132 does not emit light, the voltage of the power supply battery 100 at least leaks and the light time control circuit device is operated normally. The electromagnetic magnet Mg is at a level where it can be activated, and the electromagnetic magnet Mg is excited to attract and hold the shutter rear curtain 61. However, when the trigger button IF is further depressed, the pin 82 on the trigger member 80 engages the lever 73. A clockwise rotating force is applied, and the force applied to the lever 73 is due to the engagement between the pin 75 on the locking bar 69 and the locking pawl 73a of the bar 73. The locking bar 69 is rotated clockwise by the transmission action of the bar 9, and the shutter front curtain 6 is rotated clockwise.
The engagement between the pin 71 on the top 0 and the locking claw 69a of the locking bar 69 is released.

The pin 71 on this shutter front curtain 60 and the locking bar 69
When the engagement with the locking pawl 69a is released, the shutter front curtain 60 is moved to the holding plate 62 by the charging force of the spring 65.
Until the regulating bent portion 62b and the closed opening 60a of the front shutter curtain 60 and the opening 61a of the rear shutter curtain 61 are overlapped, the exposure surface of the sheet-like photosensitive material 42 is exposed. On the other hand, when the trigger button IF is pushed down fully, the locking bar 69 engages the pin 8 of the trigger member 80.
2 goes too far beyond the lever 73 and the engagement between the lever 73 and the pin 82 is released, so the lever 73 rotates counterclockwise under the biasing force of the spring 77, and the locking bar 69 and pin 72 are engaged. position, that is, the locking claw 69a of the locking bar 69
returns to a position where it can engage with the pin 71 on the shutter front curtain 60. When the shutter front curtain 60 is moved, the force with which the shutter front curtain 60 was pressing the switch SWI is released, so that the switch SWI is closed. When the switch SWI is opened, charging of the photocurrent generated in the capacitor 103 according to the brightness of the object is started, and the capacitor 103 is charged, and the operational amplifier 10 is charged.
When the output voltage of No. 2 rises to the trigger level of the Schmitt trigger circuit 105, the Schmitt trigger circuit 105 is reversed, and the current to the electromagnetic magnet Mg is cut off. When the current to this electromagnetic magnet Mg is cut off, the electromagnetic magnet Mg
Since the suction force is lost, the shutter rear curtain 61, which had been absorbed and held by the electromagnetic magnet Mg, runs until it comes into contact with the regulating bent part 62b of the holding plate 62 due to the spring charge force, and the shutter front curtain The closing opening 60a of the shutter 60 and the opening 61a of the shutter rear curtain 61 are again shifted from each other, and the exposure of the photosensitive surface of the sheet-like photosensitive material 42 is completed. This shutter rear curtain 61 is run, and the shutter rear curtain 61
Immediately before it comes into contact with the regulating bent portion 62b of the holding plate 62,
The engaging portion 61d of the shutter rear curtain 61 engages the lever 56, rotates the lever 56 counterclockwise about the pin 57, and the one end 56b of the lever 56 comes out of the recess 54a of the cam member 54. to close switch SW2. On the other hand, at the same time that the electromagnetic magnet Mg is de-energized and the shutter rear curtain 61 is moved, the transistor 10
7, 109, and 110 are turned on, and the transistor 108 is turned off. This transistor 107, 109, 1
10, 108 is controlled, the first time constant circuit 1 12,
1 13, 1 14 start counting, dummy resistor 1
A dummy current is applied to 15. This first time constant circuit causes a dummy current approximately equivalent to the current supplied to the motor to flow through the dummy resistor 115 in order to ensure that the motor 13 operates normally until at least the conveyance of the sensitive material is completed. It is for. Therefore, the first time constant circuit and the dummy resistor 115
When the current of the power supply battery 100 is applied to the constant voltage power supply 10 of the comparator 116, if the power supply voltage becomes below a certain voltage level while the capacitor 113 completes charging, the constant voltage power supply 10 of the comparator 116
Since the voltage at the inverting input terminal of comparator 116 is lower than the non-inverting input terminal to which bias voltage is supplied from 4, the comparator 116 is inverted and transistor 122 is turned on, but transistors 134 and 1
44 is turned off, power supply to the motor circuit is prohibited, and the light emitting element 132 emits light and the power source battery 100
The operator is informed that there is no voltage at which the motor 13 can operate normally. However, in this case, in the previous power supply voltage check, the voltage of the power supply battery 100 was in a state where the side light time control circuit device could operate normally, so the Oroyama light time control circuit device that was activated now The circuit device is working normally, and only the photosensitive material transport device that transports the sheet-like photosensitive material 42 out of the camera after the exposure is completed is not working properly. Therefore, in this case, power supply to the motor circuit is automatically prohibited due to the power supply voltage check of the light check circuit, and when the transistor 122 is turned on even for a moment, the transistors 124 and 125 are also turned on.
Since the latch circuit is self-retained by positive feedback, the motor 13 that drives the photosensitive material transport device is not driven, and the exposed sheet-like photosensitive material 42 remains housed in the camera. Therefore, in this case, the photosensitive material transport device is driven manually instead of depending on the motor 13. That is, when operating the photosensitive material transport device manually, when the manual operating lever 2 is pulled up and the operating lever 2 is rotated clockwise, the rotation of the operating lever 2 is caused by the rotation shaft 3.
, one-way clutch device 7 , gear 8 via rotating shaft 4
is transmitted to. When gear 8 rotates, the rotation is caused by gear 2
1, 30, 321, 322, 34, and 36 to the gear 31, and the photosensitive material delivery roller 38,
Rotate 39 at the agreed speed. This sensitive material carrying roller 3
Simultaneously with the start of rotation of gears 8 and 39, the rotation of gear 21 is transmitted to disk 22 via rotation shaft 23 and pins 25 and 22b,
When the disc 22 rotates together with the gear 21, the disc 22
In FIG.
By pressing rightward, the substrate 43 is moved in the direction in which the sheet-like sensitive material 42 is carried out. When the substrate 43 is displaced,
The sheet-shaped photosensitive material 42 is conveyed by a photosensitive material carrying leaf spring 46 through the photosensitive material outlet 41a of the film cartridge 41 to a position where it is held between rollers 38 and 39. When the exposed sheet-like photosensitive material 42 is transported to a position where it is sandwiched between the rollers 38 and 39, the rollers 38 and 39 are rotated by the rotational drive of the manual operation lever 2. , 39, and the sheet-like photosensitive material 42 is carried out of the camera body 1 while undergoing self-developing processing. In this way, when the exposed sheet-like photosensitive material 42 is carried out, the shutter charge lever 49 is activated by the spring 52 as the pin 19a on the gear 19 moves toward the branch 49Q side of the lever 49. The rotation bar 49 is rotated clockwise by force. When the lever 49 is rotated clockwise, the engagement end 49a of the lever 49 and the engagement portion 60b of the shutter front curtain 60 are engaged, and the shutter front curtain 60 resists the biasing force of the spring 65. When the front shutter curtain 60 is slid to the right in FIG. When the lever 49 is rotated clockwise, the front shutter curtain 60 and the rear shutter film 61 are simultaneously moved to the right in FIG.
The locking claw 69a of No. 9 slides until it is engaged again, and the spring 65 that operates the shutter front curtain 60 and the spring 66 that operates the shutter rear curtain 61 are charged, and the exposure and sheet Development and transport of the photosensitive material are completed. Incidentally, when the manual operation lever 2 is rotated to manually operate the sensor removal device, the gears 6, 14, 142,
15, 152, the governor device with the flat plate 18 and the speed increasing device with the gears 8, 19, 21, 30, 321, 322, 35, 36, the rotation of the manual operation lever 2 is given constant speed. . On the other hand, if the current of the power supply battery 100 is passed through the first time constant circuit and the dummy resistor 115, and the power supply voltage does not fall below a certain voltage level while the capacitor 113 completes charging, the comparator 116 is inverted. (The transistors 122, 124, and 125 remain off), and the light emitting element 132 does not emit light. At the same time, the transistor 134 remains on, meaning that power can be supplied to the motor circuit.

Then, when the capacitor 113 of the first time constant circuit is charged and the first time constant circuit is inverted, the transistor 135 is turned on and the transistor 136 is turned off.
By the operation of these transistors 135 and 136, a resistor 138, a capacitor 139, a level detection circuit 140
The second time constant circuit starts counting, and when the charging of the capacitor 139 of the second time constant circuit is completed, the bell detection circuit 140 is inverted and the transistor 141 is turned on. When this transistor 141 becomes normal, the lever 59 has already been activated by the movement of the shutter rear curtain 61.
rotates counterclockwise, and the lever 59 closes the switch SW.
2 is in the closed state, the motor 13 starts rotating. When the motor 13 rotates, the rotation of the motor 13 is transmitted to the rotating shaft 5 via the gears 14, 12, 11, and 9, and further transmitted to the rotating shaft 4 via the one-way clutch 72, causing the gear 8 to rotate.

The one-way clutches 7 and 72 are such that when rotation is transmitted from the rotating shaft 3 side to the rotating shaft 4 via the one-way clutch 7, the rotation of the rotating shaft 4 is transmitted to the rotating shaft 5. Also, one-way clutch 72 should be removed from the rotating shaft 5 side.
When the rotation of the motor 13 is transmitted to the rotary shaft 4 via the rotary shaft 4, the rotation of the rotary shaft 4 is not transmitted to the rotary shaft 3, so even if the rotation of the motor 13 is transmitted to the rotary shaft 4, The rotating shaft 3 is not rotated. When the gear 8 is rotated, the rotation of the gear 8 is sequentially caused by gears 19, 21, 30.
, 32 . . , 322 , 35 , 36 , the gear 31 is rotated, and in the same manner as in the manual operation described above, the exposed sheet-like photoreceptor 42 is conveyed and shutter-charged while being self-developed. . On the other hand, when the gear 8 rotates, the gear 53 meshing with the gear 8 rotates, and the gear 5
A cam member 54 rotates integrally with 3. This cam member 5
4 starts rotating, the other end 56b of the bar 56 comes into contact with the large diameter part of the cam member 54, and the recess 54a of the cam member 54
The lever 56 is rotated counterclockwise until the lever 56 is again rotated to a position where it is in contact with the other end 56b of the lever 56.
Switch SW2 is kept closed. Therefore, even after the front shutter curtain 60 and the rear shutter curtain 61 are shutter-charged by the shutter charge lever 49, the motor circuit of the motor 13 is kept closed. Then, the rotation of the cam member 54 progresses, and the recessed portion 54a is inserted into the lever 5.
When the lever 56 is engaged with the other end 56b of the lever 56, the lever 56
The end 56b of the lever falls into the recess 54a of the cam member 54, and the lever 56 rotates clockwise, opening the switch SW2 and cutting off the power supply to the motor 13. After confirming that the drive of this motor 13 has stopped, the pressing force that was pressing down the trigger button IF is released, and the trigger member 8 returns to its original position by the biasing force of the spring 84. Before the trigger member 80 returns, the trigger member 8
The pin 82 on the 0 is in a position beyond the lever 73 due to the above trigger button pressing operation, but as the trigger member 80 returns, the trigger member 82 is attached to the lever 73.
When the upper pin 82 comes into contact, only the lever 73
4 as a fulcrum, and the trigger member 80 is rotated in the counterclockwise direction using the locking bar 69 as a fulcrum, and the trigger member 80 closes the switch SW3 without the bar 69 being rotated.
The process returns to the state shown in FIG. 2, where the process is completed. Next, if you want to perform multiple exposure, rotate the switching member 27 to connect the engaging part 28a of the click spring 2/8 and the stop part 27.
c, is engaged.

In this state, the pressing portion 27a of the switching member 27 pushes the rotating shaft 23 against the pressing force of the spring 26, as indicated by the arrow C in FIG.
The pin 25 on the rotating shaft 23
is a short pin 22b of the disc 22 so that when the rotating shaft 23 is rotated, the rotation of the rotating shaft 23 is not transmitted to the disc 22.
is placed in a position where it cannot be engaged with. Therefore, even if the shutter is activated and the gear 8 is rotated by the drive of the motor 13 or the manual operation lever 2, the power is transmitted to the disk 22 in the same manner as in the one-time exposure explained above. Not done. Therefore, since only the shutter device is charged and the sheet-like photosensitive material is not transported, by repeating the operation of the trigger button IF as many times as desired for exposure, multiple exposure will be performed for the number of times the trigger button IF is operated. It will be done. Then, after the required number of exposures are completed and before the final exposure, the switching member 27 is rotated again, and the click spring 2
8, the short pin 2 of the disc 22 is engaged with the stop part 27c2, and as shown in the third figure, the short pin 2 of the disc 22 is
2b and the pin 25 of the rotating shaft 23 can be engaged with each other, and when the final exposure is performed, the exposed sheet-like texture is formed into a circular shape as previously explained with the one-time normal exposure. Material 42
is carried out of the camera body 1 while undergoing self-development processing. With the above steps, multiple exposure is completed. As explained above, in the camera using the self-developing type of sheet-like sensitive material according to the present invention, before starting exposure, the voltage of the power supply battery 100 is set to normalize the side light time control circuit device. In addition to checking whether it is at a level that can be used to
This is displayed on the general light element 132, and after the switching light timing control circuit device is activated, the voltage of the power battery 100 is set to a level sufficient to normally operate the motor 13 that transports the sheet-like sensitive material 42 out of the camera. It also checks whether the voltage is present or not and displays it on the light emitting element 132, and if the voltage of the power supply battery 100 is above a predetermined level, the supply current is passed to the motor 13, and when it is below the predetermined level, the supply current is supplied. Since the conveyance of the sheet-like photosensitive material 42 out of the camera is performed manually, the speed at which the sheet-like photosensitive material 42 is conveyed out of the camera is stabilized. Since the self-development process of the material 42 is carried out in an average time,
It is possible to prevent uneven development from occurring.

Also, when checking the power supply voltage for the motor 13, once it has been confirmed that the power supply battery 100' has a voltage that can normally drive the motor 13, the non-inverting input voltage of the comparator 116 is changed to the transistor 121. After the motor 13 is driven to lower the voltage by turning on, even if the load on the motor 13 becomes large for some reason and the voltage of the power supply battery 100 falls below a predetermined voltage, the comparator 116 will be reversed. This prevents an accident in which the power supply to the motor circuit is stopped once the power supply to the motor circuit is started, but before the sheet-like sensor 42 is completely conveyed. Figure 5,
FIG. 6 shows a second embodiment, which is a partially modified version of the first embodiment of the camera according to the present invention shown in FIGS. 1 to 4, and FIG. FIG. 6 is a perspective view showing the configuration of the main components installed, and FIG. 6 is a control electric circuit diagram for operating the camera shown in FIG. 5.

Further, members having the same numbers and symbols as those shown in FIGS. 1 to 4 have the same functions as the parts shown in FIGS. 1 to 4. This embodiment differs from the first embodiment shown in FIGS. 1 to 4 in that the base circuits of the transistor 110 and the transistor 107 are connected to the output terminal of the Schmitt trigger circuit 105, and the shutter front curtain 60 runs. The switch SWI is opened to charge the capacitor 103 of the side light control circuit, and furthermore, the output voltage of the operational amplifier 102 is changed to the Schmitt trigger circuit 1.
Condenser 103 until the trigger level of 05 or higher
When charged, a checker circuit is activated that cuts off the power to the electromagnetic magnet Mg, runs the shutter rear curtain 61, and at the same time checks the power supply voltage level for the motor 13. 60 is run and when the front shutter curtain 60 hits the regulating bending part 62 of the holding plate 62, the switch SW4 is closed by the end of the rear shutter curtain 61;
4 and a resistor 150 connected in series to the transistor 1
The base circuit of transistors 110 and 107 is connected to the base circuit of transistors 10 and 107, and the connection between the base circuit of transistors 110 and 107 and the Schmitt trigger circuit 105 is eliminated. 200' is a resistor for turning off the transistor 107 and the transistor 110 when the switch SW4 is opened.

Therefore, in this embodiment, when the shutter front curtain 60 runs, the switch SW4 is opened and the transistors 107, 109,
110 is on, transistor 108 is off, and the first
The timer circuits 112, 113, and 114 start counting and check the power supply voltage level for the motor 13. Further, in this second embodiment, a coil L is further inserted and connected in parallel with the light emitting element 132. When the voltage of the power source battery 100 is checked and the voltage of the power source battery 100 is determined to be inappropriate and the light emitting element 132 emits light, the coil L is excited at the same time as the light emitting element 132. It is designed to control a safety device newly added in this second embodiment. The safety device added in this second embodiment is provided when the voltage of the power supply battery 100 is in a state where the motor 13 can be normally driven and the sheet-like sensor film 42 is transported by the motor drive. This is to prevent the motor drive from being adversely affected by inadvertently moving the manual operation lever 2. The detailed structure of this safety device is shown in detail in FIG. A member 150 constituting the safety device is a swinging lever fixed to a rotating shaft 151 that is rotatably supported on the camera base IA, and one end of the swinging lever 150 is connected to the camera. A pin 1, the other end of which is connected to the swing lever 15, is attached to the base IA.
66, and one end 150a of the swing lever 150 is rotated clockwise by the tension spring 153 engaged with each of the swing levers 150 and 66, respectively. , in a position where it can come into contact with the permanent magnet PM. Reference numeral 154 denotes an engagement lever fixed to a rotating shaft 155 rotatably supported on the camera base IA, and one end of the engagement lever 154 is provided with a gear when the engagement lever 154 is rotated clockwise. engaged gear 152 with 152 teeth;
A locking portion 154a is provided to prevent rotation of the holder, and a protruding pin 153 is provided as a shield at the other end 154b.

157 has one end locked to the camera base IA and the other end locked to the bar 15.
This spring 157 is a tension spring that is engaged with the end 154b of No. 4, and is used to keep the engagement lever 154 rotated clockwise at all times.

The relationship between the swinging lever 150 and the engagement lever 154 is such that when the swinging lever 150 rotates counterclockwise, the engagement lever 154 also moves in conjunction with the movement, and the locking portion 154a of the engagement lever 154 locks. When the swinging lever 150 rotates clockwise so as to be engaged with the gear 152, and conversely, the swing lever 150 rotates clockwise, the engagement lever 154 engages with the locking portion 154a and the gear 1.
The protruding pin 153 of the engagement lever 154 and one end of the swing lever 150 are always linked and engaged so that the engagement lever 154 is rotated counterclockwise to release the engagement with the engagement lever 152 . 1
Reference numeral 58 denotes a rotary lever rotatably supported on a fixed shaft 159 fixed to the camera base IA, and one end of the rotary lever 158 is rotated clockwise. When the shutter charge lever 49 rotates clockwise, the other end 158b extends to a position where it contacts one end 150a of the swing lever 150 and rotates the swing lever counterclockwise. However, when performing shutter charging, the lever 158 is placed in a position where it comes into contact with the lever 49 and the rotating lever 158 can be rotated clockwise.

Therefore, each time the shutter charge lever 49 is rotated clockwise to charge the shutter, the rotary lever 158 is eclipsed by the lever 49, and the rotary lever 150 is attracted to the permanent magnet PM. When the swing lever 150 is attracted to the permanent magnet PM, the locking portion 154a of the engagement lever 154
are engaged with the teeth of gear 152. The coil L is wound around the permanent magnet PM, and when the coil L is energized, the attraction force of the permanent magnet PM is weakened and the swing lever 150 is released from its attraction. ing. That is, in this second embodiment, when shutter charging is being performed, the swing lever 150 is connected to the coil L.
Since the bar 154 is not energized, it is attracted and held by the permanent magnet PM and rotated counterclockwise, thereby causing the locking bar 154 to also rotate clockwise.

Therefore, the locking portion 154a of the locking bar 15,4 is connected to the gear 15.
2, and in this state, the manual operation lever 2
Even if I try to rotate it, I can't. Then, after the trigger button IF is pressed down and the shutter is operated, the motor 13 described above
A power supply voltage check is performed by the check circuit, and if the voltage level of the power supply battery 100 is sufficient to drive the motor 13 normally, the light emitting element 132
Since the coil L is not energized, the attraction of the swinging lever 150 by the permanent magnet PM is maintained and locked, and the locking portion 154a of the lever 154 is engaged with the teeth of the gear 152. is still retained. Therefore, in this state, the sheet-like photosensitive material 42 is automatically carried out by the drive of the motor 13, but even if the manual operating lever 2 is inadvertently attempted to be rotated during the carrying out operation, the manual operating lever 2 cannot be operated, so it does not affect the automatic unloading operation at this time. On the other hand, after the shutter is activated by pressing down the trigger button IF, the check circuit checks the power supply voltage for the motor 13 to ensure that the voltage level of the power supply battery 100 is sufficient to drive the motor 13 normally. If not, the light emitting element 132 and the coil L are energized, so the attraction force of the permanent magnet right PM is weakened, and the swing lever 1
50 is rotated clockwise by the biasing force of the spring 163.

Then, as the swing lever 150 rotates clockwise, the locking bar 154 also rotates counterclockwise.
The engagement between the locking portion 154a of the locking bar 154 and the teeth of the gear 152 is automatically released. Therefore, in this state, the manual operation lever 2 can be rotated. That is,
In the camera according to the second embodiment, the safety device is released and manual operation is possible only when the sheet-like photosensitive material 42 cannot be conveyed by motor drive. The manual operation lever 2 is operated while the material 42 is being transported by the motor, so that the transport operation by the motor is not adversely affected.

[Brief explanation of drawings]

FIG. 1 is an external perspective view of a camera according to the present invention. FIG. 2 is a perspective view showing the configuration of main parts arranged inside the camera according to the first embodiment of the present invention. Third
This figure is a side view for explaining in detail the multiple exposure device of the camera shown in FIG. 2. FIG. 4 is a control electrical circuit diagram applied to the camera according to the present invention shown in FIGS. 1, 2, and 3. 5 and 6 show a second embodiment of the camera, which is a partially modified version of the first embodiment of the camera according to the present invention shown in FIGS. 1 to 4. The figure is a perspective view showing the structure of the main components installed inside the camera, and FIG. 6 is a control electric circuit diagram applied to the camera shown in FIG. 5. Fig. 1 Fig. 2 Fig. 2 My younger brother Fig. 4 Fig. 4 Illustrated drawing

Claims (1)

[Claims] 1. A self-developing processing type using a sheet-like sensitive material which has a means for storing a developing processing solution and forms a visible image after exposure and processing with the processing solution in the storage means. In an instant photo camera, a. After exposure,
a feeding device that advances the photosensitive material, processes the exposed photosensitive material with the processing liquid during the advancement, and sends it out of the camera; b. a motor that operates the feeding device; and c. a hand. A manual operation means for operating the feeding means by operation; d. A blocking means for preventing the operation of the manual operation means; and e. Checking the power of the power supply battery for driving the motor, means for blocking power supply to the motor and releasing the blocking means to enable operation of the manual operating means when the force is not sufficient to drive the motor at a predetermined speed; An instant photo camera featuring