JP2648161B2 - Camera and cartridge loading device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera and a cartridge loading device that can use a film cartridge whose film outlet can be opened and closed.

[Prior Art] In a conventional patrone as a cartridge for a 35 mm film, a cloth light-shielding material called a brushed telemp is fixed to an exit portion of the film so as to sandwich the film. Due to the light-shielding material, the pull-out force of the film piece from the film container is heavy, and this causes a problem in the electric hoisting camera that the power consumption of the hoisting motor increases and the hoisting sound increases. .

To solve the above problem, U.S. Pat.
There is a film magazine as described in 4221479. This is a patrone like a bivalve with a built-in film spool. After loading into the camera, the patrone like the above-mentioned bivalve opens the film outlet by closing the camera back lid. , So that the film pieces can be easily pulled out.

However, what is described in the above-mentioned U.S. Patent is that the film magazine starts to open before the camera back cover is completely closed. On the way,
There is a problem that light rays enter the magazine and the film inside the magazine may cause light fog.

A first object of the present invention is to provide a camera which can use a film cartridge whose film outlet can be opened and closed, so that light can be reliably prevented from entering the film cartridge when loading or unloading the film cartridge. Is to try.

A second object of the present invention is to provide a cartridge loading device applicable to a photographic film cartridge whose film outlet is opened and closed, which prevents light rays from entering the photographic film cartridge when loading or unloading the photographic film cartridge. This is to ensure that it can be prevented.

[Means and Actions for Solving the Problems] In order to achieve the first object, the present invention provides a camera which can use a film cartridge whose film outlet is openable and closable; A film outlet of a film cartridge loaded in the cartridge chamber after the lid of the cartridge chamber is closed by mechanically interlocking with the lid of the cartridge chamber being in the same state as the lid of the cartridge chamber. Operating means for opening the unit, wherein the film outlet of the film cartridge loaded in the cartridge chamber is opened after the cartridge chamber is shielded from light.

In order to achieve the first object, the present invention provides a camera capable of using a film cartridge whose film outlet is opened and closed, wherein a cartridge chamber in which a film cartridge is loaded, a lid of the cartridge chamber, Determining means for determining that the lid has been closed; anddetermining that the lid of the cartridge chamber has been closed by the determining means to determine a film outlet of the film cartridge loaded in the cartridge chamber. A camera for opening a film outlet of a film cartridge loaded in the cartridge chamber after the cartridge chamber is shielded from light.

In order to achieve the first object, the present invention provides a camera capable of using a film cartridge whose film outlet is opened and closed, wherein a cartridge chamber in which a film cartridge is loaded, a lid of the cartridge chamber, Actuating means for closing a film outlet of a film cartridge loaded in the cartridge chamber before the lid of the cartridge chamber is opened mechanically interlocking with opening of the lid, wherein the film cartridge loaded in the cartridge chamber The film outlet is light-shielded and then the cartridge chamber lid is opened.

In order to achieve the first object, the present invention relates to a camera which can use a film cartridge whose film outlet is openable and closable, a cartridge chamber in which the film cartridge is loaded, and a film cartridge of the film cartridge loaded in the cartridge chamber. Actuating means for closing the outlet,
A member that is moved by the operating means closing the film outlet of the film cartridge loaded in the cartridge chamber is allowed to open after the film outlet of the film cartridge loaded in the cartridge chamber is closed. And a cover for opening the cartridge chamber after the film outlet of the film cartridge loaded in the cartridge chamber is shielded from light.

In order to achieve the second object, the present invention provides a cartridge loading device applied to a photographic film cartridge having a film outlet opening and closing, wherein a cartridge chamber in which a photographic film cartridge is loaded; Actuating means for opening a film outlet of a photographic film cartridge loaded in the cartridge chamber after the lid of the cartridge chamber is closed by mechanically interlocking with the closure of the cartridge chamber being closed; A cartridge loading device for opening the film outlet of the photographic film cartridge loaded in the cartridge chamber after the cartridge chamber is shielded from light.

In order to achieve the second object, the present invention provides a cartridge loading device applied to a photographic film cartridge having a film outlet opening and closing, wherein a cartridge chamber in which a photographic film cartridge is loaded; Determining means for determining that the lid of the cartridge chamber is in the same state; and determining that the lid of the cartridge chamber is in the closed state, the photographic film loaded in the cartridge chamber by the determining means. Operating means for opening the film outlet of the cartridge,
A cartridge loading device is configured to open a film outlet of a photographic film cartridge loaded in the cartridge chamber after the cartridge chamber is shielded from light.

In order to achieve the second object, the present invention provides a cartridge loading device applied to a photographic film cartridge having a film outlet opening and closing, wherein a cartridge chamber in which a photographic film cartridge is loaded; Operating means for mechanically interlocking with the opening of the lid of the cartridge chamber to close a film outlet of a photographic film cartridge loaded in the cartridge chamber before the lid of the cartridge chamber is opened, And a cover for opening the cartridge chamber after the film outlet of the photographic film cartridge loaded in the cartridge is shielded from light.

In order to achieve the second object, the present invention provides a cartridge loading device applied to a photographic film cartridge having a film outlet opening and closing, wherein a cartridge chamber in which a photographic film cartridge is loaded and a cartridge chamber loaded in the cartridge chamber. Operating means for closing the film outlet of the photographic film cartridge, and the operating means for moving the photographic film cartridge loaded in the cartridge chamber by closing the film outlet of the photographic film cartridge loaded in the cartridge chamber. A lid for the cartridge chamber, which is allowed to open after the film outlet is closed, and wherein the lid of the cartridge chamber is closed after the film outlet of the photographic film cartridge loaded in the cartridge chamber is shielded from light. Mosquito to be opened It is an cartridge loading device.

Further, the present invention includes a loading chamber cover for opening and closing the cartridge loading chamber, and a responsive means for opening the loading chamber cover after closing a cover of the cartridge loaded in the cartridge loading chamber, wherein the cartridge is shielded from light. The camera is designed to open the cartridge loading chamber after the operation.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

1 to 4 relate to a first embodiment of the present invention.

FIG. 1 is a perspective view of a cartridge loading chamber portion of the camera.
FIG. 2 is a perspective view showing a state in which the back cover of the camera of FIG. 1 is open, FIG. 3 is an exploded perspective view of a film cartridge used in the camera of FIG. 1, and FIG. It is a circuit diagram of the camera of the figure.

1 to 3, reference numeral 3 denotes a patrone as a film cartridge for opening and closing a film outlet as proposed in the above-mentioned US patent, 1 denotes a camera body,
Reference numeral 2 denotes a camera back cover which is rotatably supported with respect to the camera body 1 and which can close and open a take-out opening of a patrone 3 of the camera body 1. A back cover hook portion of a back cover opening knob 4.
4a, and has a hook portion 2a for holding the back cover 2 in the closed position. The back cover opening knob 4 is a long hole 4
c, 4c 'are slidably attached to the camera body 1 by screws 6 fitted to the camera body 1, that is, 4b for performing a sliding operation from outside, and a dowel 1a on one side on the camera body 1.
It has a spring hook portion 4d for hooking the tension spring 5 attached thereto. The back cover opening knob 4 is urged by a spring 5 to the left in FIG.

Reference numeral 4e denotes a lock portion having a flexible elastic portion and an engagement portion. When the knob 4b is pushed down from the outside in the right direction in FIG. 2 is engaged with the convex portion 1b over the convex portion 1b on the upper surface 1 and holds the back cover opening knob 4 in the state shown in FIG. Reference numeral 4f denotes a patrone release lever, which comes into contact with a slope 7b of a protruding bent portion 7a of a patrone cover 7 which opens and closes an outlet of a film piece of the patrone 3, and as shown in FIG. 5, the patrone cover 7 is opened when the back cover 2 is locked in a closed state, and when the back cover 2 is open as shown in FIG. 2, the patrone cover 7 is closed. It is configured.

Reference numeral 8 denotes a back cover closing detection switch, which is closed by the end 4g of the back cover 4 when the back cover opening knob 4 completely locks the back cover 2 in the closed state, as shown in FIG.

Reference numeral 9 denotes a spring for urging the patrone cover 7 in the closing direction. One spring is hung on the upright bend 3a of the patrone 3 and the other is hung on the upright bend 7c of the patrone cover 7.

Reference numeral 10 denotes a patrone opening detection switch.
Is a closed switch when is opened.

 Reference numeral 17 denotes a film presence / absence switch.

Reference numeral 11 denotes a light-shielding cloth made of a brushed cloth.
As shown in FIG. 3, the patrone 3 has holes 11a at positions corresponding to the two projections 7d on the jaw 7f. This projection 7d is to fix the film by entering the perforation hole of the film when the cartridge lid 7 is rotated around the axis 3c on the cartridge 3 to close the film outlet 3b on the cartridge 3. is there.

Reference numeral 12 denotes a light-shielding cloth provided on the patrone 3;
It is in the position facing.

In FIG. 4, reference numeral 13 denotes a film counter which counts a predetermined number of frames of the film to be skipped, and generates an H (high) level output until the predetermined number of the frames to be skipped is obtained. Reference numeral 15 denotes a motor for winding and rewinding the film. The motor 15 is controlled by a motor control circuit 14. 16 is an AND gate.

The power supply voltage + V _CC is applied to the secondary side of the back cover closing detection switch 8, and the power supply voltage + V _CC gives a logic level H (high). The primary side is connected to a resistor R1 connected to the ground of a logic level L (low) and an AND gate 16.

Similarly, the patrone open detection switch 10 has a resistor R2 and an AND gate 16 on the primary side and a power supply voltage + V _CC on the secondary side.
Is connected to

The film presence / absence switch 17 is attached to the film running surface of the camera. When there is a film on the running surface, the switch is closed by the film thickness and the tension of the film itself. At gate 16,
The secondary side is connected to the power supply voltage + V _CC .

That is, the AND gate 16 is connected to the three switches 8, 10, 1
When H is closed and the output of the film counter 13 becomes H, H is sent to the motor control circuit 14.

The motor control circuit 14 outputs H
It has a control function of driving the motor 15 to rotate in the film winding direction in accordance with the level idle feed control signal. The circuit 14
In addition to the idle feed of the film, the camera has various control functions such as one-frame feed at the time of photographing and rewind control after photographing is completed.

Next, the operation of the first embodiment of the present invention shown in FIGS. 1 to 4 will be described.

FIG. 1 shows a camera in which a patrone 3 is loaded and a back cover 2 is provided.
(Not shown in FIG. 1) shows a state immediately after closing.

In this state, the hook portion 4a of the back cover opening knob 4 locks the hook portion 2a of the back cover 2 and locks the back cover 2 in a closed state. The back cover closing detection switch 8 is closed. Further, the patrone opening lever 4f presses the slope 7b of the bent portion 7a of the patrone 7 against the urging force of the spring 9 by the force of the tension spring 5 for urging the back cover opening knob 4, thereby pushing the patrone cover 7 clockwise. Has been rotated. This makes Patrone 3
The film outlet 3b is opened, the film can be pulled out, and the patrone opening detection switch 10 is closed by the jaw 7f of the patrone lid 7. Also,
The film presence / absence switch 17 is also closed by the film. At this time, since the back cover 2 has just been closed, the film counter 13 has not advanced, and its output is H. Therefore, the inputs of the AND gate 16 are both H, and their outputs are H.

The output of H of the AND gate 16 is input to the motor control circuit 14, and the motor control circuit 14 starts power supply for performing idle feed to the motor 15. When the film is fed and a predetermined number of idle feed drives is obtained, the output of the film counter 13 becomes L, the output of the AND gate 16 becomes L, and the motor control circuit 14 stops supplying power to the motor 15. Then, the empty feeding is completed. Each time a release button (not shown) is pressed, a picture is taken, and the film is wound up. When the film from the cartridge 3 runs out, the motor control circuit 14 rewinds the film to the motor 15 in order to rewind the film. Power supply for Then, the film travels in the camera in the direction opposite to the direction at the time of shooting so as to be stored in the patrone 3 inside the camera. And
When the film comes off the film presence / absence switch 17, the motor control circuit 14 terminates the rewinding. In this case, a delay circuit may be inserted in the middle of the branch of the output of the switch 17 in order to completely store the leading end of the film. In this case, assuming that there is no delay circuit, the rewinding is completed when the film piece is slightly stored in the patrone 3 without being completely stored in the patrone 3. Since the film is loaded into the camera and the back cover 2 is closed, the film outlet of the patrone 3 is open up to this point. Problems such as enlargement and damage to the film do not occur with this camera.

Now, in order to take out the film that has been photographed and rewound, the knob 4b is manually pushed down from the state shown in FIG. 1 to the right in FIG. Then, the back cover open knob 4 is the long hole 4
It slides rightward in FIG. 1 by c and 4c '. Due to this slide, the lock portion 4e is pressed by the convex portion 1b on the camera body 1 and flexes downward in FIG.
The key-shaped tip of 4e is locked by the projection 1b, and the state shown in FIG. 2 is obtained. In this state, even if the user removes the hand from the knob 4b, the back cover opening knob 4 does not return to the state shown in FIG. 1 because the lock portion 4e is locked by the convex portion 1b. When the knob 4b is depressed, the end 4g first opens the back cover closing detection switch 8, and the back cover opening knob 4
When the release lever 4f attached thereto moves, the patrone cover 7 rotates counterclockwise along the slope 7b of the bent portion 7a by the action of the spring 9 applied in the closing direction of the patrone cover 7, closing the film outlet. . When the patrone cover 7 is closed, the patrone open detection switch 10 pressed by the jaw 7f of the patrone cover 7 is opened. Also, when the patrone lid 7 is closed by the spring 9, the projection 7d on the jaw 7f enters the perforation hole of the film, so that the film piece coming out of the patrone 3 is pulled after the patrone 3 is taken out from the camera. Even if it happens, the film in the cartridge 3 will not be easily pulled out.
When the knob 4b is depressed, the hook 4a of the back cover opening knob 4 releases the hook 2a of the back cover 2 so that the back cover 2 can be opened. FIG. 2 shows this state.

Here, the patrone is taken out, another new patrone is loaded again, and the back cover 2 is closed. When the back cover 2 is almost completely closed with respect to the camera body 1 by this closing operation, the hook 2a of the back cover 2 pushes the tip of the lock portion 4e of the back cover opening knob 4. Due to this pressing operation, the lock portion 4e is bent, and the lock between the lock portion 4e and the convex portion 1b of the main body 1 is released.
The state shown in FIG. 1 is moved to the state shown in FIG. 1, and the back cover 2 is completely locked in the closed state by the back cover hook 4a.

With the movement of the knob 4, the release lever 4f pushes the bent portion 7a of the patrone cover 7 upward along the slope 7b in FIG. 2, so that the patrone cover 7 is rotated against the spring 9, The film outlet 3a of the cartridge 3 is opened. This allows the film to be pulled out,
The patrone open detection switch 10 is closed by the jaw 7f. Also, the back cover closing detection switch 8 is closed by the end 4g of the back cover opening knob 4, and the state shown in FIG. 1 is established. As described above, the idle feeding is started.

FIGS. 5 to 8 relate to a second embodiment of the present invention.

FIG. 5 is a perspective view of a cartridge loading chamber portion of the camera according to the second embodiment of the present invention, and FIG. 6 is a state in which the back cover opening knob and the patrone cover of the camera of FIG. 5 are disengaged. FIG. 7 is a bottom view of the camera of FIG. 5, FIG.
The figure is a circuit diagram of the camera of FIG.

5 and 6, reference numeral 103 denotes a patrone as a film cartridge for opening and closing a film outlet as proposed in the aforementioned US Patent, 101 denotes a camera main body, and 102 denotes a rotatable with respect to the camera main body 101. A camera back lid that is pivotally supported by the camera body 101 and that can close and open the take-out opening of the patrone 103 of the camera body 101, engages with the back cover hook 104a of the back cover opening knob 104, and holds the back cover 102 in the closed position. It has a hook portion 102a for making it work. The back cover opening knob 104 is slidably attached to the camera body 101 by screws 106 that fit into the elongated holes 104c and 104c ′.
A knob 104b for sliding operation from outside and one side of the main body
It has a spring hook portion 104d for hooking a tension spring 105 attached to the dowel 101a on 101. The back cover opening knob 104 is urged leftward by a spring 105 in FIG.

Reference numeral 104e denotes an elastic portion having flexibility and a lock portion having an engagement portion.
5 is pushed down in the rightward direction in FIG. 5 so as to get over the convex portion 101b on the camera body 101 due to elastic deformation.
To hold the back cover opening knob 104 against the tension spring 105 at that position. Reference numeral 104f denotes an opening knob lock lever which, when the patrone cover 107 is open, comes into contact with the projection 107a of the patrone cover 107 for opening and closing the film piece outlet of the patrone 103, and the back cover opening knob 104
5, that is, the operation of opening the back cover 102 is disabled.

Reference numeral 108 denotes a back cover closing detection switch, which is closed by the end 104g of the back cover 104 when the back cover opening knob 104 completely locks the back cover 102 in the closed state, similarly to the first embodiment. .

109 is a leaf spring that locks the patrone lid 107 in a closed position, and one piece is attached to the patrone 103,
At its free end, a convex portion 109 which engages with the concave portion 107b of the cartridge lid 107.
have a. And this leaf spring 109 is the patrone 10
When the camera 3 is loaded into the camera, as shown in FIG. 6, the projection 107c on the camera body 101 bends, the engagement between the recess 107b and the projection 109a is released, and the patrone cover 107 is rotatable. It is what becomes.

110 is a patrone opening detection switch, and a patrone lid 1
This switch is closed when 07 is opened.

111 is a light-shielding cloth made of brushed cloth, and a patrone cover 1
It is attached to the chin 107f of 07. In addition, jaw part 10
Two projections 107d are provided on 7f, and the patrone 103 has holes at positions corresponding to the projections 107d. The projection 107d is formed so that the patrone lid 107 is
When the film is rotated around 3c to close the film outlet on the patrone 103, the film enters the perforation hole of the film and fixes the film.

Reference numeral 112 denotes a light-shielding cloth provided on the patrone 103 at a position facing the light-shielding cloth 111.

Reference numeral 121 denotes a motor for opening and closing the patrone cover 107. The output of the motor 121 is connected to a gear 107g of the patrone cover 107 via a reduction gear train 120. The meshing between the reduction gear train 120 and the gear portion 107g is performed by the patrone 103.
Is loaded into the camera body 101, and the patrone 103 is disengaged by removing the patrone 103 from the camera body 101. The cartridge lid 107 opens and closes depending on the rotation direction of the motor 121.

107h is an opening / closing mark of the patrone cover 107, which is distinguished from other parts of the patrone cover 107 by a conspicuous paint such as red or the like, as shown in FIG. When this color is seen from the window 122, the fact that the patrone 103 is open is confirmed and displayed to the outside.

In FIG. 8, reference numeral 113 denotes a film counter which counts a predetermined number of frames of the film idle feeding, and generates an H level output until the predetermined number of the idle feeding frames is obtained. 115 is a motor for winding and rewinding the film, 114 is a motor control circuit for controlling the motor 115, and 116 is an AND gate.

The power supply voltage + V _CC is applied to the secondary side of the back cover closing detection switch 108, and the power supply voltage + V _CC gives the logic level H of the logic circuit. Primary side is logic level L
The resistor R1 and the AND gate 116 connected to the ground are connected. Also, the patrone open detection switch 11
Similarly, the primary side is connected to the resistor R2 and the AND gate 116 on the primary side and to the power supply voltage + V _CC on the secondary side.

Reference numeral 117 denotes a film presence / absence switch, which is mounted on the film running surface of the camera as shown in FIG. 5, and is closed by the thickness of the film and the tension of the film itself when there is a film on the running surface. The primary side is connected to the resistor R3 and the AND gate 116, and the secondary side is connected to the power supply voltage + V _CC .

That is, the AND gate 116 includes three switches 108 and 11
0, 117 are closed and the output of the film counter 113 is H
When H is reached, H is sent to the motor control circuit 114.

The motor control circuit 114 has a control function of driving the motor 115 to rotate in the film winding direction in response to an H level idle feed control signal output from the AND gate 116. Further, the control circuit 114 controls the film feeding at the time of shooting in addition to the idle feeding of the film.
Each control function such as frame advance and rewind control after photographing is completed is also provided.

123 is a motor control circuit of the motor 121, and
When the output of 4 becomes H, the motor 121 is driven so as to open the patrone cover 107. That is, when the patrone 103 is loaded and the back cover 102 is closed, the film presence / absence switch 117 is closed by the film, and the back cover closing detection switch 108 is closed by the back cover opening knob 104, while the patrone 103 is closed. Is closed, the patrone open detection switch 110 remains open, H is output from the inverter 125, and is output to the AND gate 124 via the delay circuit 126. Therefore, all inputs of the AND gate 124 are H. The output becomes H, and the motor control circuit 123 supplies power to the motor 121 so as to open the patrone cover 107.

When the patrone cover 107 is opened and the patrone open detection switch 110 is closed, the output of the inverter 125 becomes L. Then, in order to completely open the patrone cover 107, the delay circuit 126 slightly delays the time when the input to the AND gate 124 becomes L, and then inputs L to the AND gate 124. And And Gate 1
When the output of 24 becomes L, the motor 121 stops,
The opening of the patrone cover 107 is completed. On the other hand, when the patrone open detection switch 110 is closed, the output of the AND gate 116 becomes H and the idle feeding is started, as in the first embodiment.

After the idle feeding, shooting is performed, and when there is no more film from the cartridge 103, the film is rewound. As in the first embodiment, when the film leading end is detected as the film presence / absence switch 117 being opened, the motor The control circuit 114 is a motor 115
At the same time as the power supply for rewinding is stopped, an H signal is sent to the AND gate 128, and the H signal of the patrone open detection switch 110 is input via the delay circuit 127 because the patrone cover 107 is open. Therefore, the output of the AND gate 128 becomes H.

The signal of the AND gate 128 allows the motor control circuit 1
23 supplies power to the motor 121 for closing the cartridge lid 107. Then, by this power supply, the motor 121
When the patrone cover 107 is closed and the patrone open detection switch 110 is opened, the patrone cover
After the signal has been delayed for a time sufficient for 107 to completely close, the L signal is sent to AND gate 128, and the output of AND gate 128 becomes L, so that motor control circuit 123 supplies power to motor 121. Stop, the closing of the patrone cover 107 is completed. Along with this, the projection 107a of the patrone cover 107 is retracted from the movement trajectory of the release knob lock lever 104f of the back cover release knob 104 as shown in FIG. 6, so that the back cover release knob 104 is moved to the right in FIG. It is possible to move in the direction, and by performing such an operation, the back cover hook portion 104a is detached from the hook portion 102a, and the back cover 102 can be opened,
Since the opening / closing mark 107h cannot be seen from the window 122, it is possible to confirm that even if the patrone cover 107 is closed and the back cover 102 is opened, no light is cast on the film in the patrone 103.

Next, the operation of the second embodiment of the present invention shown in FIGS. 5 to 8 will be described.

By loading the patrone 103 into the camera, the sixth
As shown in the figure, the projection 101c of the camera body 101 presses the projection 109a of the leaf spring 109, so that the lock that closed and locked the patrone cover 107 is released.

By closing the back cover 102, the back cover 102
When it is almost completely closed with respect to 1, the hook part of the back cover 102
102a pushes the tip of the lock 104e of the back cover release knob 4. Due to this pressing operation, the lock portion 104e bends and the lock portion 104e
The latch between the camera and the convex portion 101b of the camera body 101 is released, the back cover opening knob 104 runs with the force of the extension spring 105, and the back cover hook portion 104a completely locks the back cover 102 in the closed state and the back cover. The lid closing detection switch 108 is closed. As a result, the patrone cover 1 is driven by the motor 121 as described above.
07 is opened, the projection 107a of the patrone cover 107 prohibits the rightward opening operation of the back cover opening knob 104 of FIG.
0 is closed, and the film is started to be skipped.

On the other hand, the film is rewound after the photographing is completed, and when the rewound is completed, an operation for opening the back cover 102 of the back cover opening knob 104 becomes possible according to the completion of the closing of the patrone cover 107 as described above.

 FIG. 9 relates to a third embodiment of the present invention.

FIG. 9 shows a circuit obtained by adding a warning device to the circuit of FIG.

That is, FIG. 8 shows a display example in which the patrone cover 107 is opened and a display window is displayed outside when the patrone cover 107 is open. However, in the third embodiment, the process proceeds further, for example, when the motor 121 fails. If the film exit of the patrone 103 does not close even after the rewinding of the film is completed due to an accident caused by sound, a warning is issued by sound or light, and 131 is a warning device that issues a warning with the above sound or light , And gate 133
A warning is issued when the output of H is H.

The input of AND gate 133 is the output of AND gate 128,
That is, the patrone closing signal is passed through the delay circuit 132, and the delay time is set to be slightly longer than the time for closing the outlet of the patrone 103, and is also a result of both signals from the patrone opening detection switch 110. It is. That is, if there is a signal to close the patrone 103, and after a while, the outlet of the patrone 103 is open, the output of the AND gate 133 becomes H, and the film outlet of the patrone 103 is not closed due to some accident. A warning is issued.

[Correspondence between Invention and Embodiment] In the above embodiment, the camera body 1 is provided in the cartridge chamber of the present invention (claims 1, 3, 5, and 7).
Corresponds to the lid of the present invention (claims 1, 3, 5, and 7), and the back cover opening knob 4 corresponds to the operating means of the present invention (claims 1, 3, 5, and 7).

Further, the camera body 101 is the present invention (claims 2, 4, 6,
8) A camera back cover 102 is provided in the cartridge chamber, and a back cover closing detection switch 10 is provided in the cartridge chamber of the present invention (claims 2, 4, 6, and 8).
Reference numeral 8 denotes a judgment means of the present invention (claims 2 and 6);
20, the motor 121 and the motor control circuit 123 are the present invention (claim 2,
4, 6, 8).

[Effects of the Invention] As described above, according to the present invention, in a camera that can use a film cartridge whose film exit portion can be opened and closed, light rays can reliably enter the film cartridge when the film cartridge is loaded or unloaded. It can be prevented.

Further, according to the present invention, in a cartridge loading device applied to a photographic film cartridge in which a film outlet is opened and closed, it is possible to reliably prevent light rays from entering the photographic film cartridge when loading or unloading the photographic film cartridge. You can do it.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cartridge loading chamber of a camera according to a first embodiment of the present invention, FIG. 2 is a perspective view showing a state in which a back cover of the camera in FIG. 1 is open, and FIG. FIG. 4 is an exploded perspective view of a film cartridge used in the camera according to the embodiment of the present invention, FIG. 4 is a circuit diagram of the camera of FIG. 1, and FIG. 5 is a view of a cartridge loading chamber of the camera according to the second embodiment of the present invention. FIG. 6 is a perspective view showing a state in which the back cover opening knob and the patrone cover of the camera of FIG. 5 are disengaged.
FIG. 7 is a bottom view of the camera of FIG. 5, FIG. 8 is a circuit diagram of the camera of FIG. 5, and FIG. 9 is a circuit diagram of a camera according to the third embodiment of the present invention. 1,101 camera body, 2,102 back cover 3,103 patrone, 4,104 back cover open knob 7,107 patrone cover, 8,108 back cover close detection switch 10,110 patrone open detection switch 14,114 motor control circuit , 15,115 …… Motor 16,116 …… And gate, 17,117 …… Film presence / absence switch

Claims (8)

(57) [Claims] 1. A camera which can use a film cartridge whose film outlet is openable and closable, wherein a cartridge chamber in which a film cartridge is loaded, a lid of the cartridge chamber, and a lid of the cartridge chamber are closed. An actuating means for opening a film outlet of a film cartridge loaded in the cartridge chamber after a lid of the cartridge chamber is closed in a mechanically interlocked manner. 2. A camera which can use a film cartridge whose film outlet is openable and closable, wherein a cartridge chamber in which a film cartridge is loaded, a lid of the cartridge chamber, and a lid of the cartridge chamber are closed. Determining means for determining that the lid of the cartridge chamber has been closed, and operating means for opening a film outlet of a film cartridge loaded in the cartridge chamber by the determining means determining that the lid of the cartridge chamber has been closed. And the camera. 3. A camera capable of using a film cartridge whose film outlet is openable and closable, wherein a cartridge chamber in which a film cartridge is loaded, a lid of the cartridge chamber, and mechanical opening of the lid of the cartridge chamber are mechanically linked. Operating means for closing a film outlet of a film cartridge loaded in the cartridge chamber before the lid of the cartridge chamber is opened. 4. A camera capable of using a film cartridge whose film outlet is openable and closable, wherein: a cartridge chamber in which the film cartridge is loaded; operating means for closing the film outlet of the film cartridge loaded in the cartridge chamber; A member that moves when the operating means closes the film outlet of the film cartridge loaded in the cartridge chamber is allowed to open after the film outlet of the film cartridge loaded in the cartridge chamber is closed. A camera having a lid for the cartridge chamber. 5. A cartridge loading device applied to a photographic film cartridge whose film outlet is opened and closed, wherein a cartridge chamber in which a photographic film cartridge is loaded, a lid of the cartridge chamber, and a lid of the cartridge chamber are closed. Actuating means for opening a film outlet of a photographic film cartridge loaded in the cartridge chamber after the lid of the cartridge chamber is closed in a mechanically interlocked manner. Loading device. 6. A cartridge loading device applied to a photographic film cartridge whose film outlet is opened and closed, wherein a cartridge chamber in which a photographic film cartridge is loaded, a lid of the cartridge chamber, and a lid of the cartridge chamber are closed. Determining means for determining that
Operating means for opening a film outlet of a photographic film cartridge loaded in the cartridge chamber when the determining means determines that the lid of the cartridge chamber is closed. . 7. A cartridge loading device applied to a photographic film cartridge whose film outlet is opened and closed, wherein a cartridge chamber in which the photographic film cartridge is loaded, a lid of the cartridge chamber, and opening of the lid of the cartridge chamber is started. Operating means for closing the film outlet of the photographic film cartridge loaded in the cartridge chamber before the lid of the cartridge chamber is opened mechanically in conjunction with the cartridge loading apparatus. 8. A cartridge loading device applied to a photographic film cartridge whose film outlet is opened and closed, wherein a cartridge chamber in which the photographic film cartridge is loaded and a film outlet of the film cartridge loaded in the cartridge chamber are closed. The film outlet of the photographic film cartridge loaded in the cartridge chamber is closed by the actuating means and a member that moves by closing the film outlet of the photographic film cartridge loaded in the cartridge chamber by the operating means. A lid for the cartridge chamber that is allowed to be opened later.