JPH0258036A - Camera with automatic film feeding device - Google Patents

Abstract

PURPOSE:To precisely mesh a planetary gear with a main driving gear by interlocking the planetary gear with the opening operation of a back cover after rewinding a film, linking the gear to a gear train in a hoisting side, and rotating a motor for a short time. CONSTITUTION:If the back cover 58 is opened after the film is rewound, the expanded part 58a of the back cover 58 is separated from the edge 57c of a back cover detecting lever 57, which is turned counterclockwise by the restitutive force of a return spring 57a. A rewinding switch lever 56 is turned clockwise by the turning of the lever 57. Besides, a rewinding switch 21 is turned into OFF by the turning of the engaging pin 56d of the lever 56. A locking claw 47d is engaged with the notched part 56a of the lever 56, and a switching lever 47c is turned clockwise. Thus, the switching planetary gear 47b is also clockwise swinged and is meshed with the main driving gear 48. Simultaneously the motor 30 is rotated for a short time, and the addendum of the planetary gear 47b is made to deviate from the addendum of the main driving gear 48. Thus, precise meshing is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a camera equipped with an automatic film feeder that winds and rewinds film by rotating a motor in the same direction.

[Conventional technology]

To make photography easier, there is an automatic film feeder that automatically winds and rewinds the film, and a zoom device that allows the photographic lens to move forward and backward in the optical axis direction to continuously change the focal length. Cameras, especially compact cameras, are becoming popular.

The rotation of a motor is used to feed the film and drive the zoom of the photographic lens, but if each of these mechanisms were driven by a separate motor, the camera would become larger and heavier, making it less convenient. It is necessary to drive these using a separate motor. In this case, this single motor must be used to wind and rewind the film and move the photographic lens forward and backward. In order to process these operations with one motor, a plurality of operations are performed separately by rotating the motor in the same direction. For example, the film may be fed by rotating in the forward direction, and zooming may be driven by rotating in the reverse direction.

A planetary gear train is used to switch between these operations. That is, the rotation of the motor is transmitted to the sun gear, and the gear that meshes with the planetary gear that revolves around the sun gear is switched to change the transmission path of the rotation of the motor.

[Problem that the invention seeks to solve]

In the above-mentioned camera with an automatic film feeder.

When the camera is used for photographing, it is necessary to wind the film and drive the zoom by rotating the motor in forward and reverse directions. Also, when rewinding the film,
It must be separated from the power transmission path for winding and zoom driving and connected to the power transmission path for film rewinding.

Then, when the film has finished rewinding and you open the back cover of the camera to remove the film.

The planet gear, which had been connected to the film rewind transmission path, must be forcibly turned to connect to the film winding and zoom drive transmission paths, and the position of the planet gear must be locked. When rewinding the film, the lock is released and the planet gear rotates naturally due to the rotation of the sun gear rotated by the motor, thereby connecting to the transmission path for rewinding the film.

When performing the above operations, when switching the transmission path from the film rewind transmission path to the film winding and zoom drive, the planetary gear is mechanically moved using the restoring force of a spring, for example. Since the planetary gear is rotated relative to the sun gear, the tips of the teeth of the planetary gear may come into contact with the tips of the gear that should mesh with the planetary gear, which may cause the lock to fail. Therefore, when you try to wind the film in preparation for the next shot, the position of the planetary gear is not locked, so the natural rotation of the sun gear causes the planetary gear to re-transmit the film for rewinding. I ended up connecting to the route.

There is a risk of the film being rewound into the cartridge.

Therefore, the present invention aims to securely lock the position of the planetary gear that switches the power transmission path from the transmission path for film rewinding to the transmission path for film winding and zoom drive, and to connect the planetary gear and the gear meshing therewith. It is an object of the present invention to provide a camera with an automatic film feeding device that can reliably ensure the meshing state with the film feeder.

[Means for solving problems]

In order to achieve the above object, a camera with an automatic film feeding device according to the present invention is provided with a film feeding device that winds and rewinds the film by rotation of one motor in the same direction, The planetary gear whose connection is switched between the gear train and the rewind side gear train is rotated relative to the sun gear by the rotation of the motor in the above direction to link with the film rewind side gear train, and the planetary gear is linked with the film winding side. In this camera, the planetary gear is linked to the winding side gear train in conjunction with the opening operation of the camera back after film rewinding is completed, and The feature is that the motor rotates for a short period of time.

[For production]

When the rewinding process for the photographed film is completed, the back cover of the camera is opened to take out the film. In conjunction with this opening operation of the back cover, the planetary gear, which had been linked to the film rewind side gear train, is forcibly rotated relative to the sun gear. This rotation causes the planetary gear to cooperate with the winding gear train. At this time, even if the tips of the teeth of the planetary gear try to come into contact with the tips of the gears in the winding gear train that mesh with the planetary gear, since the motor rotates for a short time, the planetary gear due to the rotation of the motor rotates for a short time. By rotating the teeth, the tips of the teeth can mesh smoothly without coming into contact with each other.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS A camera with an automatic film feeding device according to the present invention will be specifically described below based on the illustrated embodiments.

Figure 1 is a schematic diagram showing the outline of the camera hardware.
It is structured around a microcomputer (CPU) 1.

In order to perform photography, the main switch 2 is turned ON and OFF in conjunction with the opening and closing of the barrier covering the photographic lens, and the movable side contact of this main switch 2 is connected to the port 1a of the CPUI via the photographing information line 2a. The port 1a is grounded via a resistor 3 when the main switch 2 is OFF, and connected to the voltage line 4 when the main switch 2 is ON.

When the release button is slightly pressed to expose the film, the first stage release switch 5 is turned on, and when it is further pressed, the second stage release switch 6 is turned on. 1st
One contact of the stage release switch 5 is connected to the port 1b by the second release information line 6a, and the other contact is connected to the movable side contact of the main switch 2. One contact of the second stage release switch 6 is connected to the port 1c by a second release information line 6a, and the other contact is connected to the movable side contact of the main switch 2. It is grounded via the resistor 6b.

Does this camera have a shooting lens? This is a camera with a so-called zoom device that can continuously change the focal length by moving it forward and backward relative to the camera body, and can be switched between the short focal length switch (wide switch) 7 and the long focal length switch (tele switch) 8. This is done by turning on.

One contact of the wide switch 7 is connected to the port 1d by a wide information line 7a, and this wide information line 7a is grounded via a resistor 9. Further, a zoom information line 10 branches from the middle of the wide information line 7a, and this zoom information line 10 is connected to the port 1 via a buffer gate 11.
connected to e. The zoom information line 10 connected from this port 1e is grounded via a resistor 12. Further, the other contact of the wide switch 7 is connected to the voltage line 4. One contact of the teleswitch 8 is the teleinformation line 8a
The teleinformation line 8a is connected to the port 1f by a resistor 36, and is grounded via a resistor 36. Further, the tele-information line 8a is branched in the middle and connected to the zoom information line 10 via a buffer gate 13. Further, the other contact of the teleswitch 8 is connected to the voltage line 4.

After the wide switch 7 or the tele switch 8 is turned on and the photographic lens is moved to a predetermined position, the neutral switch 14 is turned on in preparation for the primary movement. One contact of this neutral switch 14 is connected to the port 1g by the neutral information line 14a, and the other contact is connected to the voltage line 4 so that the neutral switch 14 is
When the voltage is set to N, the port 1g is connected to the voltage line 4. Also,
Neutral information line 14a is grounded via resistor 15.

When activating the self-timer to take a picture, the self-timer 16 is turned on. One contact of this self-switch 16 is connected to port 1h by a self-information line 16a, and this self-information line 16a is grounded via a resistor 17. The self information line 16a branches in the middle and is connected to the port 1j by the information line 19 via the buffer gate 18.
This information line 19 is connected to the ground via a resistor 20. The other contact of the self-switch 16 is
Connected to voltage line 4.

When all the frames of the loaded film have been photographed and winding has stopped, the torque at that time is detected and the rewind switch 21 is mechanically turned on as will be described later. Furthermore, when the back cover, which will be described later, is opened, the rewind switch 21 is turned off in conjunction with this opening operation. One contact of this rewind switch 21 is connected to the port 1j by a rewind information line 21a, and this rewind information line 2
1a is grounded via a resistor 22. Further, the rewinding information line 21a is branched in the middle and connected to the information line 19 via a buffer gate 23.

In the figure, reference numeral 24 denotes a back cover switch, which opens and closes the back cover when loading or unloading film, and is turned on when the back cover is opened and turned off when it is closed. The movable contact of this back cover switch 24 is connected to the port 1k by a back cover opening/closing information line 24a.

When the camera back switch 24 is turned on, the voltage line 4
is connected to 0FFL, and is grounded via the resistor 3 at times.

Further, port 11 of the CPUI is grounded.

The power battery 25 is connected to a regulator 26 and others, and the output side of this regulator 26 is connected to the CPU board 1.
m is connected to supply a stable voltage to the CPUI, and a noise killer capacitor 2 is connected in parallel with the CPUI.
7 is connected. The voltage line 4 is connected to the output side of the regulator 26, and a stable voltage is supplied to the voltage line 4.

In the figure, reference numeral 28 denotes a shutter control section that opens and closes the shutter by controlling the shutter speed and aperture value based on exposure data detected by the photometric sensor.

Information such as exposure data and calculation results is exchanged between the shutter control unit 28 and the CPUI.

The date section 29 is a section that controls the date for imprinting the date on the film at the time of photographing.

The motor 30 is driven by a motor driver circuit 31.

This motor driver circuit 31 includes a film feed information line 3.
1a, zoom drive information line 31b and stop information line 31
c is connected, and these information lines 31a, 31b, 31c
are connected to boats 1n and 10.1p, respectively. The motor 30 is driven by a signal sent from the boat 1n to feed the film, winding and rewinding the film.
A signal sent from the boat 10 drives the photographing lens to advance and retreat for zooming, and a signal sent from the boat 1p stops the rotation of the motor 30.

Charging of the strobe's main capacitor and strobe light emission are performed in the strobe circuit 32, and the charging prohibition information line 32a of this strobe circuit 32 is connected to the boat 1q, and the charging start information line 32 is connected to the boat 1q.
b is connected to boat 1r, trigger information line 32c is connected to boat 1s
The charging completion information lines 32d are respectively connected to the boat 1t. Charging of the strobe circuit 32 is prohibited or canceled by a signal sent from the boat 19, and when this is canceled, charging is started by a signal sent from the boat 1r, and when charging of the main capacitor of the strobe circuit 32 is completed. A charging completion signal is sent from the strobe circuit 32 to the boat 1t. Further, when the shutter is released and the shutter is opened, a trigger signal is sent out from the boat 1s in synchronization with this, and a trigger voltage is applied to the discharge tube of the strobe circuit 32 to discharge it and cause the strobe to emit light.

When shooting, press the release button slightly to release the first
The step release switch 5 is turned on, which measures the distance to the subject and brings the photographic lens into focus. This focusing operation is performed by an autofocus circuit (AF circuit) 33, which calculates a subject distance using the CPUI based on distance information obtained by a distance sensor, and sends the result to the AF circuit 33.

FIG. 2 is an exploded perspective view schematically showing a film feeding mechanism and a zoom drive mechanism driven by a motor 30, and the motor 30 is housed in a spool 41.

A pinion gear 42 fitted to the output shaft of the motor 30 meshes with a gear 43, and the rotation of the motor 30 is caused by the gear 43.
from the torque sensing sun gear 45a via the drive gear train 44.
transmitted to.

A torque detection planetary gear 45 is included in the torque detection sun gear 45a.
b are in mesh with each other, and these sun gear 45a and planetary gear 4
5b is pivotally supported on the torque detection lever 45c. A torque detection spring 45 is attached to one end of the torque detection lever 45c.
d is stretched, and its restoring force is applied to the torque detection lever 45c.
is urged to rotate in the direction of arrow P in the top of FIG. 2 (rotation of each part in this direction in the same diagram is defined as a clockwise direction) about the rotation axis of the torque detection sun gear 45a. be. A locking pin 45 is provided at the other end of the torque detection lever 45c.
e is planted.

A transmission gear 46 meshes with the torque detection planetary gear 45b,
A switching sun gear 47a is fitted coaxially with the transmission gear 46, and the switching sun gear 47a is rotated by rotation of the torque sensing planetary gear 45b. A switching planetary gear 47b meshes with the switching sun gear 47a, and these switching sun gear 47a and switching planetary gear 47b are pivotally supported by a switching lever 47c. Then, the switching planetary gear 47b is connected to the switching lever 4.
By swinging 7c, it is configured to mesh with either the main drive gear 48 or the first gear 49a of the rewind side gear train 49. Note that a rewinding fork 49 inserted into the shaft of a cartridge (not shown) is installed at the final stage of the rewinding side gear train 49.
b is provided.

A drive system switching sun gear 50a is supported coaxially with the main drive gear 48, and a drive system switching planetary gear 50b meshes with the drive system switching sun gear 50a. Drive system switching arm 50
It is pivoted on c. Then, due to the swinging of the drive system switching arm 50c, the drive system switching planetary gear 50b meshes with either the spool gear 41a fitted on the spool 41 or the first gear 51a of the zoom drive gear train 51. The state in which the drive system switching planetary gear 50b meshes with the spool gear 41a is shown by imaginary lines in FIG.

The first gear 51a of the zoom drive gear train 51 meshes with a transmission gear 51b, a zoom system switching sun gear 51c is provided coaxially with the transmission gear 51b, and a zoom system switching planetary gear 51d is connected to the zoom system switching sun gear 51c. The sun gear 51C1 and the planetary gear 51d are pivotally supported by the zoom system switching arm 51e. The rotation of the zoom system switching arm 51e about the rotation axis of the zoom system switching sun gear 51c causes the zoom system switching planetary gear 51d to rotate.
, meshes with either the tele drive gear 51f or the wide drive gear 51g. Wide drive gear 51g is transmission gear 51
The telephoto drive gear 51f is in mesh with the transmission gear 51i via the intermediate gear 51h. therefore,
When the rotation direction of the zoom system switching sun gear 51c is constant, the zoom system switching planetary gear 51d is connected to the tele drive gear 51.
The rotational direction of the transmission gear 51i is changed depending on when it meshes with the wide drive gear 51g and when it meshes with the wide drive gear 51g.

The transmission gear 51i meshes with an intermediate gear 51j, a worm 51k is formed on the rotating shaft of the intermediate gear 51j, and a worm wheel 511 meshes with the worm 51k. An intermediate gear 51m is fitted coaxially with this worm wheel 511, and a drive gear 51n is attached to this intermediate gear 51m.
are meshing. Further, a fan-shaped gear 51o meshes with this drive gear 51n, and a mirror Wi4 drive lever 52 is fitted onto the rotating shaft of this fan-shaped gear 51o. A pin 52a implanted at the tip of the lens barrel drive lever 52 is loosely inserted into a guide groove 53a formed on the side surface of the lens barrel 53. Note that the lens barrel 53 is provided with a photographing lens 54 .

The lock pin 45e installed on the torque detection lever 45c is in contact with one end of a lock lever 55 rotatably supported by a shaft 55a, and a return spring 55b is attached to the lock lever 55. The restoring force is used to urge the lock lever 55 to rotate in the direction of arrow Q in FIG. .

Further, a locking protrusion 55 is provided at the other end of the lock lever 55.
This locking protrusion J155c engages with and disengages from one end of a notch 56a formed on the outer peripheral surface of the rewind switch lever 56.

The rewind switch lever 56 is rotatably supported around a shaft 56b, and has a rewind spring 56c stretched thereon.
The restoring force is used to urge the one-rewind switch lever 56 to rotate counterclockwise in FIG. 2. Also, at the other end of the notch 56a.

The tip of a locking pawl 47d formed by bending the end of the switching lever 47c upwards is engaged, and the rewinding switch lever 56 and the locking pawl 47d are used to control the switching gear 47b. It constitutes a locking means that maintains a state in which it is meshed with the drive gear 48.

A part of the rewind switch lever 56 has an engaging pin 56d.
is installed, and one end of the back cover detection lever 57 engages and disengages from this engagement pin 56d. In addition, this back cover detection lever 5
A return spring 57a is tensioned at 7, and its restoring force urges the back cover detection lever 57 to rotate counterclockwise in FIG. 2 about a shaft 57b. A bulge 58a provided on the back cover 58 engages and disengages from the other end 57c of the back cover detection lever 57 when the back cover 58 is opened and closed.

Then, the contact portion 59 of the rewind switch 21 is connected to the engagement pin 56d implanted in the rewind switch lever 56.
is engaged.

The film feeding and zoom driving operations of the camera with the automatic film feeding device according to the present invention constructed as described above will be explained with reference to FIG.

FIG. 2 shows the state in which the back cover 58 is opened after the film has been rewound. At this time, the lock lever
The locking protrusion 55c of 55 engages with the notch 56a of the rewind switch lever 56, and the rewind switch lever 56 rotates counterclockwise in FIG. 2 under the restoring force of the return spring 56c. be prevented from doing so. Further, a locking claw 47d of a switching lever 47c is engaged with the other end of the notch 56a of the rewinding switch lever 56, and a switching planetary gear 47b pivotally supported by the switching lever 47c is connected to the main drive gear. It meshes with 48. When the back cover 58 is closed in this state, the bulge 58a comes into contact with the end 57c of the back cover detection lever 57.
As the back cover 58 closes, the end of the back cover detection lever 57, which was in contact with the engagement pin 56d of the rewind switch lever 56, separates from the engagement pin 56d as shown in FIG.

Note that the rewind switch lever 56 is a lock lever 55.
is restricted by.

When the switching sun gear 47a is rotated in the counterclockwise direction in FIG. 2 in this state, the main drive gear 48 is also rotated in the same direction via the switching planetary gear 47b. At this time, the force in the rotational direction of the switching sun gear 47a acts to rotate the switching lever 47c counterclockwise.
47c is prevented from rotating by the locking pawl 47d engaging with the notch 56a of the rewind switch lever 56.

When the main drive gear 48 rotates counterclockwise, the drive system switching sun gear 50a coaxially therewith also rotates in the same direction, so the drive system switching arm 50c similarly rotates counterclockwise. Therefore, the drive system switching planetary gear 50b turns around the drive system switching sun gear 50a and meshes with the spool gear 41a, rotating the spool 41 counterclockwise in FIG. 2 and winding up the film. . Note that the rotation direction of the motor 30 for rotating the switching sun gear 47a in the counterclockwise direction is assumed to be forward rotation.

For zoom driving, the motor 30 is rotated in the opposite direction.

When the motor 30 rotates in the opposite direction, the drive system switching sun gear 50a rotates in the clockwise direction in FIG. First gear 51a of zoom drive gear train 51
It will mesh with the Therefore, the rotation of the motor 30 is transmitted to the fan-shaped gear 51o and then to the lens barrel drive lever 52 to swing it, so that the lens barrel 53 moves. When driving the zoom, either the wide switch 7 or the tele switch 8 is operated, and in conjunction with the operation, the zoom system switching planetary gear 51d is engaged with either the tele drive gear 51f or the wide drive gear 51g. . That is, when the zoom system switching planetary gear 51d is engaged with the telephoto drive gear 51f, the lens barrel 53 is moved forward, and when it is engaged with the wide drive gear 51g, the lens barrel 53 is moved backward.

When the camera is released for photographing, the motor rotates forward, the spool 41 rotates appropriately as described above, and the film is advanced one frame as described later in preparation for the next photograph.

When all the frames of the film have been photographed, the film does not wind up even when an attempt is made to wind it, and the rotation of the spool 41 stops due to the tension of the film.
7a and the gears up to transmission gear 46 stop rotating.

The torque sensing planetary gear 45b meshed with the transmission gear 46,
Since it is rotating clockwise in FIG. 2 in response to the rotational force of the motor 30, this rotation causes the torque detection planetary gear 45b to move along the transmission gear 46, so that the torque detection lever 45c detects the torque. The torque detection sun gear 45a rotates counterclockwise in FIG. 2 about the rotation axis of the torque detection sun gear 45a against the restoring force of the detection spring 45d. Therefore, the lock pin 45e turns in the same direction, causing the lock lever 55 to rotate clockwise. This rotation of the lock lever 55 causes the locking protrusion 55c to separate from the notch 56a of the rewind switch lever 56, and the rewind switch lever 56
restrictions will be lifted.

When the restraint of the rewind switch lever 56 is released, the rewind switch lever 56 rotates counterclockwise in FIG. 2 due to the restoring force of the return spring 56c. Therefore, the restraint of the locking claw 47d is released, so the switching lever 47c
becomes free. Moreover, since the engagement pin 56d of the rewind switch lever 56 rotates, the rewind switch 21 whose contact portion 59 is engaged with the engagement pin 56d is turned on.

Further, due to the rotation of the engagement pin 56d, the engagement pin 56d comes into contact with the end of the back cover detection lever 57.

Since the motor 30 continues to rotate in the forward direction, the switching bar 4
7c becomes free, the switching lever 47c rotates in the same direction due to the rotation of the switching sun gear 47a in the counterclockwise direction in FIG. It meshes with the first gear 49a of the side gear train 49. Therefore, the rewind side gear train 4
Rotation of the motor 30 via the rewind fork 49b
The film is rewound by rotating it.

When the back cover 58 is opened to take out the film after rewinding, the bulge 58a separates from the end 57c of the back cover detection lever 57, so the back cover detection lever 57 is activated by the return spring 57a. It rotates counterclockwise in FIG. 2 due to the restoring force. Since the engagement pin 56d of the rewind switch lever 56 is in contact with the end of the back cover detection lever 57, the rewind switch lever 56 rotates clockwise due to the rotation of the back cover detection lever 57. . Moreover, the rotation of this engagement pin 56d causes the rewind switch 2
1 is turned off. Since the locking pawl 47d is engaged with the notch 56a of the rewind switch lever 56, the switching lever 47c is rotated clockwise.

Therefore, the switching planetary gear 47b also turns in the same direction and meshes with the main drive gear 48. At this time, if the tips of the teeth of the switching planetary gear 47b and the tips of the teeth of the main drive gear 48 come into contact with each other, the above-mentioned meshing will not be achieved. The main drive gear 48
to ensure proper engagement. Further, when the rewind switch lever 56 rotates and the switching planetary gear 47b meshes with the main drive gear 48, the locking protrusion 55c of the lock lever 55 engages with the notch 56a, resulting in the state shown in FIG. becomes.

The operation of the camera with an automatic film feeding device according to the present invention constructed as described above will be explained using the flowcharts shown in FIGS. 3 to 14.

FIG. 3 is a flowchart at the time of initial setting when the power source battery 25 is filled, and the power is turned on at the time of filling (step 201). Then, the zoom system processing mode is set and stored (step 202), and the input/output port of the CPU 1 is set and stored (step 202).
1- is set (step 203) and the RAM is cleared (step 204). Then, the camera waits for 2 seconds (step 205), and then the shutter is checked (
Step 206). For example, if the power battery 25 runs out while the shutter is being opened or closed, the shutter may not have returned to its initial position. In such a case, the shutter is returned to its initial position in step 206. Then, the state of the back cover switch 24 is detected to determine whether the back cover is open (step 207). If YES, the film is being loaded or unloaded, so there is no need to continue shooting, so step 301 is performed.
Proceed to (shown in Figure 4). If the determination in step 207 is NO, the film may be loaded, and the process proceeds to step 208, where it is determined whether the rewind switch 21 is turned on. If the result of the determination is No, if the film is loaded, shooting will continue and the film will be wound, so the initial mode is set and memorized (step 209).
), proceed to step 301. If the result of the determination in step 208 is YES, it means that the power battery 25 was replaced while the film was being rewound, so wait 0.5 seconds (
Step 210) After that, the motor driver circuit 31 drives the motor 30 based on the signal sent from the port 1n.
The motor 30 rotates (forward rotation) for film feeding (MF) (step 211), and the process proceeds to step 1001 (shown in FIG. 11) for rewinding the film.

FIG. 4 is a flowchart when the camera is on standby for photographing or other purposes, and in step 301 it is determined whether or not the camera is in a zoom processing mode. The result is YES
If S, the processing mode of the zoom system is reset (step 302), and then step 502 (shown in the sixth figure)
Proceed to. The result is N.

, an interrupt condition is set to wait when each switch is operated (step 303).
), the input/output ports of the CPUI are set (step 304). In this state, it becomes standby (step 30).
5) It is determined whether each switch has been operated, that is, whether there is an interrupt (step 306). If the determination result in step 306 is No, the process returns to step 306 again, and this state continues until a YES determination is made.

If the determination result in step 306 is YES, it is determined which switch was operated. first,
In step 307, it is determined whether the main switch 2 (SM) is operated to open or close the barrier. If the result is YES, it means that the photographing will take place or that the photographing has ended, and the photographing lens needs to be moved to a position suitable for photographing or to a position that does not interfere with closing the barrier. , step 501 (sixth
(as shown). Also, the determination result in step 307 is No.
When there is no operation of main switch 2,
Proceeding to step 308, it is determined whether the wide switch 7 (SW) or the tele switch 8 (TS) has been operated. If the result of this determination is YES, the process advances to step 501 to move the photographing lens. Step 30
If the determination result in step 8 is No, this means that neither the tele switch 8 nor the wide switch 7 is operated, so the process advances to step 309. In step 309, the release button is slightly pressed and the first stage release switch 5 (
SPi) is turned on. The result is Y
When it is ES, it is a case where photography is performed, so
The process advances to step 601 (FIG. 7) to perform shutter processing. When the first stage release switch 5 is not turned on, the process proceeds to step 310, and it is determined whether the back cover 58 has been opened or closed. The judgment result is YES
At step 311, it is determined whether the shutter is locked, that is, whether it is in the S lock mode.

When the result of step 311 is YES, the process advances to step 1301, and when the result is No, step 701
Proceed to. When the determination result in step 310 is No, that is, when the back cover 58 is not operated to open or close, the process proceeds to step 312, and the self-switch 16 (S S E L F) is set to O.
Determine whether or not the answer is N. Self switch 16 is ON
When this happens, it is a case of self-timer photography, and in this case, the self-timer mode is set and memorized (step 313), and in order to charge the flash, step 401 (shown in the fifth diagram) is performed. move on. therefore,
If the camera is in standby mode and the selfie mode is set, charging of the strobe will start first, regardless of whether the strobe is being charged or not. Step 3
If the determination result in step 12 is NO, the process returns to step 303 and the camera is placed on standby.

Figure 5 shows a flowchart of strobe control.
First, in step 401, it is determined based on the state of the main switch 2 whether the barrier is closed or not. Judgment result is Y
In the case of ES, that is, when the barrier is closed, there is no need to charge the strobe because no photographing is to be performed, and the process proceeds to step 501 (shown in the sixth figure). If the determination result is NO, the barrier is open and the process proceeds to step 402, where it is determined whether the S lock mode is present. If the result is YES, the shutter cannot be released and photographing cannot be performed, so there is no need to charge the flash, so the process returns to step 301 and enters the standby state. When the determination result in step 402 is NO, charging of the strobe is started (step 403).

Once charging has started, it is determined in step 404 whether or not there is a switch interruption. If the result is NO, it is determined whether 30 seconds have elapsed since the start of charging (step 40).
5) If the charging period has not elapsed, it is determined in step 406 whether or not charging has been completed.

If the determination result is NO, that is, if the battery is not charged, the process returns to step 404, and the determination of switch interruption (step 404) and the determination of 30 seconds elapsed (step 405) are repeated until charging is completed. If 30 seconds have passed during this repetition, it means that a problem has occurred such as insufficient voltage from the power supply battery 25, and in this case, a YES determination is made in step 405. Then, in step 407, charging is stopped, and in step 408, the charging completion mode is reset. In this case, the charge completion mode is reset because, as will be described later, when step 403 is reached, charging may have already been completed and the charge completion mode may have been set. After the charging completion mode is reset, the process proceeds to step 301.

When the determination result in step 4060 is YES, that is, when charging is completed, charging is stopped (step 409), and the charging completion mode is set and memorized (step 4).
10), proceed to step 411. In step 411,
A determination is made as to whether or not the device is in the self mode, and if the determination is YES, the process proceeds to step 412, where it is determined whether one minute has elapsed.

Note that during this one minute, for example, a light emitting diode or the like may be used to display that the device is in self mode. If one minute has not elapsed, the process proceeds to step 413, where it is determined whether there is a switch interruption. Further, after one minute has elapsed in step 412, the process proceeds to step 412a, resets the self mode, and then proceeds to step 413. That is, in step 412, the self mode is maintained for one minute after charging is completed.

If the determination result in step 413 is No, that is, if there is no switch interrupt, the process proceeds to step 414, where it is determined whether 5 minutes have passed since the charging completion mode was set, and it is determined whether 5 minutes have elapsed. If not, a negative determination is made and the process returns to step 411.

If 5 minutes have elapsed, that is, in step 414, Y
If it is determined to be ES, the process advances to step 415 and the charging completion mode is reset. That is, the charging completion mode is maintained for 5 minutes at step 414 after charging is completed.

Note that if 5 minutes elapse, there is a risk that the main capacitor 32j of the strobe will spontaneously discharge. If the charging completion mode is reset in step 415, the process returns to step 301 and enters a standby state in preparation for normal photographing.

If any switch is operated after charging is started and upon completion of charging, a YES determination is made in step 404 and the process proceeds to step 416.

In step 416, it is determined whether the self-switch 16, which was in the OFF state, has been turned ON. If the result of this determination is YES, the process advances to step 417, where it is determined whether or not the mode is self-mode. For example, although the self-switch 16 is turned on in step 312 described above,
This is because if the self mode is stored in step 313, the self switch 16 will remain in the self mode even if it is turned off. In such a case, since the determination in step 417 is YES, the self mode is reset (step 418), and the process proceeds to step 405 to continue charging the strobe. That is, the self-switch 16 is
If the button is operated repeatedly, the second operation cancels self-timer photography. Also, step 417
If the 0 determination result is No, it means that the self-switch 16 was operated while not in the self-mode.
This is a case where self-timer photography is to be performed, and the process advances to step 419 to set the self-mode, and then returns to step 403 to start charging the strobe again.

If the determination in step 416 is No, the self-switch 16 has not been operated, so step 420
Then, it is determined whether or not the closed back cover 58 is opened. If the determination result in step 420 is YES, the process proceeds to step 421, resets the above-mentioned S lock mode, initial mode, F mode and 3S abnormal mode, which will be described later, and returns to step 405.

When the determination in step 420 is NO, it means that there is no change in the state of the camera back switch 24, and it is determined which other switch was operated. The other switches in this case are the first stage release switch 5, the wide switch 7, the tele switch 8, the main switch 2, or the rewind switch 21. When these switches are operated, the AF circuit 33 and motor 30 are driven, so if the strobe continues to be charged, the motor 30 etc. will not operate sufficiently due to the voltage drop of the power battery 25. First, step 42
Step 2 stops strobe charging.

Then, the process proceeds to step 423, and it is determined whether the first stage release switch 5 has been turned on. If this determination is YES, photographing is performed, so the process advances to step 601 and shutter processing is performed.

If the determination in step 423 is NO, the process proceeds to step 424, where it is determined whether the tele switch 8 or the wide switch 7 has been turned on. If the determination result is YES, the process advances to step 501 to perform zoom processing. If the determination result is NO, the self mode is reset in step 425. This means that the other operated switches are
Either the main switch 2 is operated in the direction of closing the barrier, or the rewind switch 21 is operated, so no photographing is performed in either case.
Self mode will be reset.

Then, in step 426, it is determined whether the main switch 2 is operated and the barrier is closed. If the result of this determination is YES, it is necessary to move the photographing lens to a position where closing the barrier will not be a problem, and the process proceeds to step 501 to perform zoom processing. If the determination is No, the process advances to step 427 and the rewind switch 2 is pressed.
1 is ON or not. Regardless of whether the determination result in step 427 is YES or NO, step 70
Go to 1.

If none of the switches is operated during charging (if the determination in step 404 is No), charging ends as described above and the charging complete mode is maintained for 5 minutes (step 414). If any switch has been operated during these five minutes, the determination in step 413 is YES and the process proceeds to step 428, where it is determined whether the self-switch 16 has been turned on.

If the result of this determination is YES, it is determined whether or not it is in the self mode (step 429), and if it is in the self mode, the self mode is reset (step 430).
), the process returns to step 414 and continues counting for 5 minutes. If the determination in step 429 is No, the process advances to step 419, where the self mode is set, and then charging of the strobe is started (step 403). In this case, the strobe will be charged again when it has already been charged, and the time required for charging will be extremely short.

If the determination result in step 428 is NO, step 4
In step 31, it is determined whether or not the back cover 58 has been opened. If the back cover 58 has been opened, the F mode, S lock mode, 3S abnormal mode, and initial mode are reset in step 432, and then the process proceeds to step 414. . Further, when the determination result in step 431 is NO, the process proceeds to step 423 described above, and the same determination as described above is performed. Note that at this time, charging of the strobe has already been stopped (step 409), so step 422 is not passed.

FIG. 6 shows a flowchart of the zoom process for changing the focal length of the photographic lens, and as described above, the process proceeds from steps 307, 308, steps 401, 426, etc. to step 501, and the zoom process is performed.

In step 501, it is determined whether the main switch 2 has changed by being turned on or off.

At this time, if there is a change in the main switch 2, the process proceeds to step 502, where it is determined whether the main switch 2 is operated and the barrier is opened or closed. When the barrier opens, it means that the user is about to take a picture, and after the barrier opens, the photographing lens housed in the camera must be advanced to a position where it can be photographed. Further, when the barrier is closed, it is necessary to carry the camera after photography has been completed, and in this case, the photographic lens must be retreated to the storage position and the barrier must be closed. That is, when the determination result in step 502 is No, the barrier is opened and the process proceeds to step 503. Immediately after charging the power battery 25 into the camera, the camera is in the zoom processing mode as described above, so YES is determined in step 301, and after the zoom processing mode is reset in step 302, the process proceeds to step 502. The state of the main switch 2 determines whether the barrier is open or closed. That is, after the power supply battery 25 is filled, it is determined whether the barrier is open or closed, and the photographing lens is first moved forward or backward as described below depending on the state at that time.

In step 503, the output of the encoder that detects the position of the photographic lens is set to the home position (HOME) or H.
It is determined whether or not it is in construction. In the camera shown in this embodiment, the photographic lens moves between a home position, a wide end position, and a telephoto end position.

The home position is a position further retreated from the wide end position, and is a position in which the barrier is retracted to close it. The focal length is changed by moving between the wide end position and the telephoto end position. Further, H shows the output of the encoder when the photographing lens is located between the home position and the wide end position. If the determination result in step 503 is No, the process proceeds to step 530 and performs processing to move the photographing lens forward, but the processing in this case will be described later. If the determination result in step 503 is YES, it means that even though the barrier is open, it is not possible to take a picture, so the process goes to step 504, where the motor 30 for zooming is activated by the signal sent from the boat 10 of the CPUI. Drive (reverse rotation) to move the photographic lens forward (MZ).

Next, in step 505, it is determined whether the wide switch 7 is turned on. This is because the direction of rotation of the motor 30 is kept constant and the engagement state of the gear that transmits the rotation is changed to move the photographic lens forward or backward. If the wide switch 7 is turned on, the rotation of the motor 30 will be transmitted to move the photographic lens backward, so in order to check the meshing state of the gears, check the state of the wide switch 7. Check it out. Therefore, when the wide switch 7 is turned on and the determination at step 505 is YES, the motor 30 is stopped at step 507 in order to prevent the motor 30 from rotating any further and moving the photographic lens backward. Further, even if the wide switch 7 is not ON, if the neutral switch 14 is ON, the transmission gear in this camera is in a state of engagement that causes the photographic lens to move backward, so in step 506 the neutral switch 14 is is O
It is determined whether or not the state is N, and if YES, the motor 30 is stopped at step 507.

After the motor 30 has stopped, the wide switch 7
is turned on (step 508) and whether the neutral switch 14 is turned on (step 509). If either step 508 or step 509 is determined as YES, step 508
Return to That is, only when it is determined NO in both step 508 and step 509, that is, when both the wide switch 7 and the neutral switch 14 are set to FF, the process proceeds to step 510, and the motor 30 is driven for zoom drive. The process then proceeds to step 511. Further, if the determination in step 506 is No, that is, the wide switch 7 is not ON (step 505) and the neutral switch 14 is not ON (step 506).
)in case of.

With the motor 30 being driven in step 504, the process advances to step 511.

In step 511, it is determined whether the barrier remains open. When the judgment result is NO,
That is, when the barrier is open, the process advances to step 512 and it is determined whether the encoder is in the H position or the home position. When the determination result in step 512 is YES, the process proceeds to step 513 with the motor 30 continuing to rotate, and it is determined whether two seconds have elapsed. Before 2 seconds have elapsed, the determination in step 513 becomes No, and step 505
Return to

If the determination in step 511 is YES, the barrier is closed and photographing is not performed, so the process proceeds to step 514 and the motor 30 is stopped.

Further, if the determination result in step 512 is No, that is, if the encoder no longer indicates H□ and the home position, the photographing lens has moved forward to the photographing position, so the process advances to step 514 and the motor 30 is stopped. . Furthermore, if the determination in step 513 is YES, the encoder continues to indicate H□ and the home position even though 2 seconds have passed, indicating that there is some kind of abnormality such as the photographic lens not moving. Therefore, the process proceeds to step 514 to stop the motor 30, and then the process proceeds to step 515 to determine whether or not the barrier is closed. If the determination result in step 515 is No, that is, if the barrier is open, the process proceeds to step 401 and the strobe is charged in preparation for release. If the determination result in step 515 is YES, that is, if the barrier is closed, the process returns to step 502, although it is necessary to retreat the photographing lens to the storage position.

If it is determined in step 502 that the barrier is closed based on the state of the main switch 2, the process proceeds to step 516.

If the determination in step 502 is YES, since the barrier is closed, the photographic lens must be in the retracted position, and in step 516 it is determined whether the photographic lens is in the retracted position, that is, the encoder is in the home position. It is determined whether or not. If the result of this determination is No, the motor 30 is driven to move the photographing lens backward (step 517). Note that the mechanical structure is such that when the main switch 2 is operated in the direction of closing the barrier, the wide switch 7 is turned on following the operation of the main switch 2, so the steps described above are not performed. There is no need to check the states of the wide switch 7 and neutral switch 14 to drive the motor 30 as in 505 and 506. Then, while the motor 30 is rotating, it is determined in step 518 whether or not the main switch 2 is maintained in a state where the barrier is open. If the determination result is NO, the barrier is maintained closed. ,
In step 519, it is determined whether the encoder indicates the home position. If this determination is No, the process advances to step 520, and it is determined whether two seconds have elapsed. 2
If the second has not yet elapsed, the process returns to step 518. If the determination in step 518 is YES, the barrier has been opened, so the process proceeds to step 52 and stops the motor 30. Further, when the determination in step 519 is YES, since the encoder has instructed the home position, the process proceeds to step 521 and the motor 3
Stop 0. If YES is determined in step 520, this means that the encoder does not indicate the home position even after 2 seconds have elapsed, and there may be some abnormality, so the process proceeds to step 521 and the motor 30 is stopped.

After stopping the motor 30, the process proceeds to step 522, where it is determined whether the main switch 2 is not maintained and the barrier is opened. If this determination is YES, the barrier has been opened, so the process returns to step 502 and proceeds from step 502 to step 503, where the process of advancing the photographing lens to the photographing position as described above is performed. If the determination result in step 522 is No, the barrier is closed and the camera waits for photographing, so the process returns to step 301 and enters the standby state.

If the result in step 501 is No, that is, there is no change in the main switch 2, the process proceeds to step 523, where it is determined whether the main switch 2 is in a state where the barrier is closed or whether the main switch 2 is in the S lock mode.

If the determination result is YES, it means that the barrier is closed or the shutter is locked, and the camera is not in a state for photographing, so there is no need to move the photographic lens, and the process returns to step 301 to enter the standby state. If the determination in step 523 is No, the barrier is open and the shutter is not locked, so it is ready for photographing, so the process proceeds to step 524, where it is determined whether the wide switch 7 is turned on. . In this case, in order to take a picture, the photographer is trying to determine the composition by visually checking the subject through the finder.

If the determination result in step 524 is YES, it is necessary to position the photographing lens at the photographing position.

Therefore, the process proceeds to step 525, and it is determined whether the encoder is at the wide end (W end), H position, or home position. Note that if the photographic lens is in the retracted position, the photographer will operate the tele switch 8 without operating the wide switch 7, so the determination result in step 524 will be NO and the process will proceed to step 526. become.

When the determination result in step 525 is No, the photographing lens is already in a forward state, so the zoom motor 3 is
0 (step 527). If the motor 30 is driven, the process proceeds to step 528, where it is determined whether the main switch 2 is in the open barrier state. If the barrier is in an open state, the determination result in step 528 is NO.
Then, the process advances to step 529. In step 529, it is determined whether the wide switch 7 is maintained in the ON state. If YES, the process proceeds to step 531, and it is determined whether the encoder instruction is H□ or the home position.

If the result of this determination is NO, the process proceeds to step 533, where it is determined whether or not two seconds have elapsed.If not, the result of the determination is NO, and the process returns to step 528, where the determination process is performed in the same way. The determination result in step 528 is No.
If this occurs, that is, if the main switch 2 is operated to close the barrier, the process proceeds to step 518 with the motor 30 continuing to rotate, and the motor 30 is rotated until the photographic lens is retracted to the storage position. It will be processed as follows.

When it is determined No in step 529, that is, when the wide switch 7 is turned off, the process proceeds to step 530, where the photographing lens is slightly advanced and the motor 3 is turned on.
Processing to stop 0 is performed.

This is because when the motor 30 rotates in step 527, the photographic lens is moved backward, but if the motor 30 is stopped while the motor 30 is in the backward state, each transmission gear meshes with the tooth side on the side that causes the photographic lens to move backward. are doing. When the gears mesh, there is backlash, and when the motor 30 is then driven to move the photographic lens forward, the motor 30 is driven until each transmission gear meshes with the tooth side on the side that advances the photographic lens. A situation arises in which the rotation is not transmitted to the photographic lens. For this reason, each gear is rotated in advance by an amount corresponding to the backlash so that when the photographing lens is next moved forward, the photographing lens moves forward almost at the same time as the motor 30 starts rotating.

Then, when the determination in step 531 is YES, that is, when the encoder is at the Hl or home position, the motor 30 is stopped (step 532).
Proceeding to step 508, the motor 30 is driven again (step sio) and the photographing lens is advanced until the encoder no longer indicates H□ or the home position (step 512), that is, the motor 30 is driven until the photographing is possible. Rotate. In this case, since the photographing lens moves forward from the retracted position or the H□ position, there is no need to perform processing regarding backlash of the transmission gear.

Also, the determination result in step 503 described above is NO.
, that is, the main switch 2 is operated (step 501) and the barrier is opened (step 502).
If the encoder is not in either the H position or the home position, the process advances to step 530 and the motor 3
0 is slightly rotated to move the photographing lens forward.

Then, when the determination result at step 525 is YES, that is, when the wide switch 7 is turned on (step 5
When the encoder is at the W end, Ho, or home position in step 24), or when the process of step 530 is completed, the process proceeds to step 535. Also,
° If the determination is No in step 533, this means that even though the motor 30 rotates for 2 seconds, the encoder does not indicate either H 534), proceed to step 535. In step 535, it is determined whether the barrier is closed based on the state of the main switch 2, and if YES, step 516
Then, the motor 30 is rotated (step 517) until the encoder indicates the home position (step 519). If the determination result in step 535 is No, the barrier is open and the process proceeds to step 401 to charge the strobe.

If the determination in step 524 is No, the photographer looks at the subject through the finder and operates the teleswitch 8 to determine the composition. In this case, as described above, the process proceeds to step 526, and it is determined whether or not the encoder is indicating the tele end (W end).
If the result is YES, there is no need to drive the motor 30, so the process proceeds to step 535 and is processed as described above.

When the determination in step 526 is NO, the motor 3o is driven to move the photographing lens forward (step 537). Then, the process proceeds to step 538, and it is determined whether the main switch 2 has been operated to close the barrier. When the result of this determination is NO, it is determined whether the teleswitch 8 is maintained on (step 539). If YES is determined in step 539, the teleswitch 8 is turned on, and step 540
It is determined whether the encoder has designated the T end or not. If the result is No, it is determined whether two seconds have elapsed. If not, the process returns to step 538.

If the determination in step 538 is YES, that is, if the barrier is closed, there is no need to move the photographic lens forward, so the motor 30 is stopped (step 542) and the process proceeds to step 535. In this case, the determination result in step 535 is YES, so the process proceeds to step 516, where the motor 30 is driven again and the photographing lens is moved backward until the encoder indicates the home position (step 519).
). If the determination in step 539 is No, the teleswitch 8 has been turned off, so the motor 30 is stopped (step 542), and the motor 30 is stopped in step 535.
Proceed to determine whether the barrier is open or closed. If YES is determined in step 540, the photographic lens has moved forward and the encoder has indicated the T end, and since the photographic lens cannot be advanced any further, the motor 30 is stopped (step 542), and the encoder has indicated the T end. Proceed to 535. Furthermore, if it is determined as YES in step 541, since the photographing lens does not advance to the T end even after 2 seconds have elapsed, it is determined that there is some kind of abnormality, and the process proceeds to step 542, where the motor 30 is stopped. Then, the process proceeds to step 535. If the determination result in step 535 is No, that is, if the barrier is open, the process proceeds to step 401 and the strobe is charged in preparation for release.

Figure 7 is a flowchart of shutter processing. For example, when the camera is in standby mode or during strobe control,
When the release button is pressed and the first stage release switch 5 is turned on (steps 309 and 423), the process advances to step 601 and shutter processing is performed.

In step 601, it is determined whether or not the S lock mode is in effect. If the determination is YES and the S lock mode is in effect, the shutter cannot be released, and step 60
Proceed to step 2. N at step 601.

If it is determined that the shutter is not locked, the process proceeds to step 604 and it is determined whether the encoder is indicating the H position or the home position.

If the determination is YES, the shutter cannot be released because the photographing lens has not advanced to the position where photography can be taken, and the process advances to step 602. If the determination result in step 604 is NO, the process proceeds to step 605 where a battery check is performed and it is determined whether or not sufficient voltage is applied. If the result of this determination is NO, sufficient voltage is not obtained to perform a release after measuring the distance to the subject, so the process proceeds to step 602 without performing any subsequent processing.

In step 602, it is determined whether the first stage release switch 5 is turned on, and if YES, the determination in step 602 is repeated. When the finger is removed from the release button and the first-stage release switch 5 is turned off, the determination result in step 602 becomes No, and the process proceeds to step 603, where the shutter and AF system signals are released, and the process proceeds to step 301, where the camera If the determination is YES at step 605, in which the camera enters a standby state, photometry is performed to control exposure during photographing, and the data is stored (step 606). And step 60
7, it is determined based on the data obtained in step 606 whether the attached strobe needs to emit light, that is, whether the light emitting mode has been selected and whether the strobe is uncharged.

If the determination result is NO, the exposure is possible, so the process proceeds to step 608, where the subject distance is measured and stored. Then, the process proceeds to step 609, where it is determined whether or not strobe photography is to be performed based on the data in step 606, that is, whether or not the flash mode is in effect.If the result is YES, the process proceeds to step 610, where the distance data in step 608 is used. Based on this, calculations for flash photography using Flashmatic are performed to determine the aperture value, and the process proceeds to step 611. Also, step 6
If the determination result in step 09 is No, there is no need to emit light from the strobe, so the process advances to step 611.

In step 611, it is determined whether the release button has been completely pressed down and the second stage release switch 6 (SF3) has been turned on. This judgment result is N.

If so, in step 612 the first stage release switch 5 is
If the determination is YES, the process returns to step 611 and this process is repeated until the second stage release switch 6 is turned on. If YES is determined in step 611, the process proceeds to step 613, where it is determined whether or not the self mode is set. If the result of this determination is No, that is, the self mode is not present, step 61
4, the lens stage is set based on the distance data obtained in step 608, and the film is exposed (
step 615). Then, the shooting date is imprinted on the film frame as necessary (step 616).
Afterwards, the lens is returned to its initial position (step 617).
), shooting ends. Thereafter, in step 618, the shutter and AF system signals are released, and when flash photography is performed, the charging complete mode is reset at the same time.

In step 619, it is determined whether it is in the initial mode,
When the determination result is YES, the process proceeds to step 1101 (shown in the twelfth figure), and when the result is No, the process proceeds to step 620. In step 620, it is determined whether or not the F mode is in effect. If YES, the process proceeds to step 701; if NO, the process proceeds to step 410 to charge the strobe.

When the determination result in step 613 is YES, it means that the self mode is selected, and in this case, the process advances to step 621. In step 621, main switch 2
It is determined whether the open barrier is closed based on the change in , and if NO, the process proceeds to step 622 and it is determined whether the self-switch 16 has been turned on. If the result of this determination is No, a change in the back cover switch 24 is detected and it is determined whether or not the closed cover 58 is opened (step 623). The determination result in step 623 is NO.
If so, the process advances to step 625, and it is determined whether 10 seconds have elapsed since the second stage release switch 6 was turned on. If 10 seconds have not elapsed, the process returns to step 621, and the above process is repeated. If the second has elapsed, the process advances to step 614 and exposure is performed. That is, in the self-mode mode, the release button is released after 10 seconds have elapsed since the release button was completely pressed down. Further, when the determination in step 623 is YES, since the camera back 58 has been opened, the process advances to step 624 to enter F mode and S lock mode.

The 3S abnormal mode and initial mode are reset and the process proceeds to step 625.

Furthermore, if the determination in step 607 above is YES, the flash is not sufficiently charged even though it is in the flash mode and must be used for flash photography, making it impossible to perform proper exposure at the time of release. The shutter and AF system signals are canceled (step 626).
). If the determination result in step 612 is No, the shutter and AF system signals are canceled in step 626, since the finger has been released from the release button and photographing is not performed. If YES is determined in step 621, the barrier is closed, and the process proceeds to step 626.

Further, if a YES determination is made in step 622, in the state of self mode (step 613
) Since the self-mode is canceled because the self-switch 16 is operated, the release is canceled and the process proceeds to step 626, followed by step 41 to charge the strobe.
Go to 0.

FIG. 8 shows a flowchart for determining what state the camera mode is in, selecting and branching the process corresponding to that state, and determining in step 311 that the camera is not in S lock mode. If so, step 42
If the state of the rewind switch 21 is determined in step 7, or if it is determined in step 620 that the mode is F mode, the process proceeds to step 701 and branch processing is performed.

In step 701, it is determined whether the back cover 58 is open or not based on the state of the main switch 2. This result is YES
At S, the back cover 58 is opened and not used for photographing, so in step 702 the F mode, S lock mode, 3S abnormal mode, and initial mode are reset, and then the process proceeds to step 401.

When the determination result in step 701 is No, the process proceeds to step 703, where it is determined whether or not there is an erroneous opening/closing mode, which will be described later. If the result of this determination is YES, the erroneous opening/closing mode is reset (step 704), and the process proceeds to step 705, where it is determined whether the rewind switch 21 is turned on. N at step 705.

If it is determined that this is the case, the process proceeds to step 1201, where processing in the case of erroneous opening/closing is performed. Further, if the determination result in step 705 is YES, the rewind switch 21 is turned on and the film will be rewound.
Proceeding to step 706, the motor 30 is driven for film feeding (MF). The determination result in step 703 above is N.
o, the process advances to step 706 and the motor 30
to drive. Then, in step 707, it is determined whether the mode is F mode.

If this determination is YES, the process advances to step 901 to advance the film one frame.

If the determination result in step 707 is NO, the process proceeds to step 708, where it is determined whether the rewind switch 21 is turned on. In step 427 described above, it was determined whether the rewind switch 21 was ON or not, and the process proceeded to step 701 regardless of the result, but step 708
It is determined again whether the rewind switch 21 is ON or not, and the subsequent processing will be different depending on the result.

That is, when the determination result in step 708 is YES, step 100 is performed to rewind the film.
1 (FIG. 11), and if NO, proceed to step 801 (FIG. 9) to check the presence or absence of film.

Figure 9 shows whether the film is loaded or not, and if it is loaded, if it is the initial loading, the film reader is wound up and the first frame is placed in the first frame at the aperture. It is a flowchart of the processing which carries out seso h (FFS). When proceeding to step 801, the motor 30 is rotating (step 706).

First, in step 801, it is determined whether the rewind switch 21 is turned on. If this is YES, the film is rewound, so the process does not proceed to FFS processing but proceeds to step 1001. Step 80
1 is No, the process proceeds to step 802, and it is determined from the state of the back cover switch 24 whether or not the 7AM5'8 is open. If this judgment result is YES, the film is not subjected to FFS, so in step 803 the motor 3
0 is stopped, the process proceeds to step 301 and the camera is put into standby mode.

If the determination result in step 802 is No, the camera back 58
is closed, the process advances to step 804 to perform FFS processing, and determine whether or not it is completed. FFS counts the perforations of the film; for example, if the film is wound one frame, it is S. If the signal is to be received and the leader section is to wind up 4 frames, select S. FFS ends when four signals are received. Step 8
If the determination result in step 04 is NO, the process advances to step 805, where it is determined whether 5 seconds have elapsed.If 5 seconds have not elapsed, the process returns to step 801, and the above-described process is repeated. Furthermore, if the FFS does not end even after 5 seconds have elapsed, that is, if the determination in step 805 is YES, it is likely that the film is not loaded, so the motor 3
0 is stopped (step 806).

If the FFS is completed, the determination in step 804 becomes YES and the process proceeds to step 807.

In step 807, F mode is set and stored. F mode is a mode that indicates that the film is loaded and shooting continues, so it is set when the film is released and the exposure is finished (step 620), or when the film is advanced one frame in step 707, etc. has been done. If F mode is set, motor 3
If 0 is stopped (step 806), the process proceeds to step 301 and the camera is placed in standby mode.

Figure 10 is a flowchart for advancing the film one frame. When the camera is determined to be in F mode,
That is, when the final determination in step 707 is YES, one frame advance is performed. Note that when the process proceeds to step 901, the motor has already rotated 3 degrees (step 706).

In step 901, it is determined whether or not the rewind switch 21 is turned on. If YES, the film has been completely rewound, so one frame advance is not performed, and the F mode is reset (step 902). Step 1001 for rewinding the film
Proceed to. If it is determined NO in step 901, then it is determined whether the back 15g is open (step 90
3). If this judgment result is YES, F mode, S
To reset the lock mode, 3S abnormal mode and initial mode (step 904), stop the motor 30 (step 905), and then step 3 to prepare for the next process.
Proceed to 01.

Then, when the determination in step 903 is NO,
In step 906, one frame forwarding (F processing) is performed and it is determined whether or not it is completed. Single frame advance is S mentioned above. Completion is determined by detecting the signal. If the determination in step 906 is NO,
In step 907, it is determined whether 3 seconds have elapsed;
If NO, the process returns to step 901 and the above process is repeated.

When it is determined as YES in step 906, that is, when one frame forwarding is completed, the process advances to step 908 and 38
The abnormal mode is reset and the motor 30 is stopped (step 911).

Moreover, when it is determined as YES in step 907,
Even though 3 seconds have passed since the 1-frame advance was started, the 1-frame advance is not completed, and it is determined that there is some kind of abnormality, so the 3S abnormal mode is set and the number of times this is set is counted. (Step 909). Next, the process advances to step 910 to determine whether the 3S abnormal mode has been counted five times. If the result is No,
Motor 30 in the same way as when 3S abnormal mode is set.
In step 911), the process proceeds to step 912, where it is determined whether the rewind switch 21 is set to ○N. If this determination is YES, the film is completely wound up, its torque is detected, and the rewind switch 21 is turned on. And step 912
If it is determined to be YES, the F mode is reset since the film will not be advanced one frame from now on, and the process proceeds to step 701 to branch the subsequent processing. If the determination in step 912 is No, the film is wound one frame and the process advances to step 401 to charge the flash in order to wait for the next photograph.

Further, when the 38 abnormal mode is counted 5 times and the determination result is YES in step 910, the motor 30
(step 914), resets the F mode to prevent further single-frame forwarding (step 915), and sets the S lock mode to prevent release (step 916), then steps 301 to put the camera on standby for the next process.

FIG. 11 is a flowchart showing a process for rewinding the film when all frames of the film have been photographed. As mentioned above, the processing before rewinding is
Step 211. There are step 708, step 801, step 902, etc. Step 211 is a case where the power supply battery 25 is replaced because it is exhausted during the winding of the film. Step 708. Step 801
In step 902, the film is completely wound and the rewind switch 21 is set to ○N. Further, when the process proceeds to step 1001, the motor 30 is already rotating.

In step 1001, it is determined from the state of the back cover switch 24 whether the back cover 58 is open. If the result of this judgment is YES, it means that $1158 was opened by mistake while the motor 30 was rotating and the film was being rewound.・Si (step 10σ
2) After stopping the motor 30 (]003), proceed to step 301. If the determination in step 1001 is NO, the process proceeds to step 1004, where S obtained from the perforation of the film described above is obtained in 3 seconds.

Determine whether a signal has been received.

S before 3 seconds elapse. If a signal has been received, the determination result in step 1004 is NO and the process proceeds to step 100.
Return to 1. That is, if a So times signal change is detected and continues to be detected, the film rewinding process is continued. Then, even if 3 seconds have elapsed since the determination result of step 1004 becomes YES, S. If no signal is received, the film is completely rewound and the remoter 30 is stopped (step 1005),
The S lock mode is set (step 1006) and the process proceeds to step 301.

FIG. 12 shows a flowchart of the process performed when replacing the power battery 25 when the initial mode is set. That is, in step 619, YE
This process is performed when the determination S is made, but the initial mode is set in step 209, which is when the power source battery 25 is charged. Therefore, for example, this process is performed by replacing the power supply battery 25 with a film loaded and releasing the camera.

In step 1101, the initial mote set in step 209 is reset so that this process will not be performed when the camera is released thereafter. Next, the motor 30 is driven for film feeding (step 1102), and the process proceeds to step 1103. In step 1103, it is determined whether the rewind switch 21 has been turned on.

If YES, the process proceeds to step 1001 since the film is to be rewound. If the determination result in step 1103 is No, the process advances to step 1104, and the J [change from the state of switch 24 to
8 is open or not. If YES, the motor 30 is stopped (step 1105).

Proceeding to step 301, the camera is placed on standby in preparation for the next process. When the determination result in step 1104 is NO, the process proceeds to step 1106, where S is described above. Determine the presence or absence of a signal. This judgment takes a predetermined time (3
sec, ), and it is determined whether 3 seconds or more have elapsed until the 80 signal changes. If the 80 signal is received before 3 seconds have elapsed, the camera is loaded with film, so the determination result in step 1106 is No, and the process advances to step 107 to advance one frame. . In step 1107, it is determined whether or not the one-frame forwarding process has been completed. If the result of this determination is No, the process returns to step 1103, and the above-mentioned process is repeated until one frame has been advanced.

If the determination in step 1107 is YES and one frame has been sent, the motor 30 is stopped.
8), proceed to step 1109. In step 1109, it is determined whether or not the rewind switch 21 has been turned on. If this is YES, step 70 is performed to proceed to the next process.
Proceed to 1. Also, the determination result in step 1109 is No.
In this case, the power battery 25 is replaced while the film is being loaded, one frame advance is completed, and the camera is ready for the next shooting, so the F mode is set (1110) and the process proceeds to step 401 to turn on the flash. Charge the battery.

If YES is determined in step 1]06 above, the film has not advanced one frame even after 3 seconds have elapsed, indicating that the film is not loaded or that there is some abnormality. , the motor 30 is stopped (1111), and in this case, the process proceeds to step 301 without setting the F mode.

FIG. 13 shows a flowchart of the erroneous opening/closing process. If the back cover 58 is opened by mistake while rewinding the film (YES in step 1001, the erroneous opening/closing mode is switched off in step 1002). set.)
etc. Note that when the back cover 58 is opened, the rewind switch 21 is mechanically turned OFF in conjunction with the opening of the back cover 58.
F is given. At this time, since the motor 30 is in a stopped state (step 1003), the motor 30 is stopped in step 1201.
0 for film feeding and winding of the film. Then, it is determined whether or not the rewind switch 21 has been turned on (step 1202), and if YES, the process proceeds to step 1001 to rewind the film. Since the rewind switch 21 is turned off as described above, the determination result in step 1202 is No, and the process proceeds to step 1203, where it is determined whether or not the back cover 58 is open. Generally, if the back cover 58 is opened by mistake, the back cover 58 will be closed immediately, so step 120
The determination result of step 3 is No, and the process proceeds to step 1204, where it is determined whether 3 seconds have elapsed. This 3-second determination is S, which indicates one frame of the film mentioned above. This is done depending on the presence or absence of a signal. This judgment result is NO1, that is, the next 80
If 3 seconds have not elapsed by the time the signal is received, the process returns to step 1202 and the above process is repeated. When the film is completely wound up, the torque is detected and the rewind switch 21 is turned on.
The determination result in step 1202 becomes YES, and the process moves on to rewinding the film. That is, if the back M58 is opened by mistake while rewinding the film, the film will be completely wound up first and then the rewinding process will be performed again.

Further, when the determination in step 1203 is YES, that is, when the back cover 58 is opened again, the erroneous opening/closing mode is set (step 1205) and the motor 30 is stopped (step 1206). Note that when the determination result in step 1204 is YES, that is, S even though 3 seconds have elapsed. If no signal is received, step 1206
The process proceeds to step 301 to stop the motor 30, and to prepare for the next process, the process proceeds to step 301 to put the camera on standby.

Note that the reset of the erroneous opening/closing mode is performed through the following process. As described above, the erroneous opening/closing mode is set in step 1002, the motor 30 is stopped (step 1003), and the process proceeds to step 301, where the camera enters the standby state. Then, when the back cover 58 that was accidentally opened is closed, the process proceeds from step 310 to step 311, and since the S lock mode is not set at this time, the process proceeds to step 701.

Then, in step 703, it is determined that the erroneous opening/closing mode is in effect, and the process proceeds to step 704, where the erroneous opening/closing mode is reset.

FIG. 14 shows a flowchart of the process performed when the film is fully rewound and ready for the next operation. When the film is fully rewound, step 10
When the S lock mode is set in step 06 and the back cover 58 is opened to take out the film, YES is determined in step 310.
Since the determination in step 311 is YES, the process advances to step 1301 and the process shown in flowchart 1- is performed.

In step 1301, it is determined whether the rewind switch 21 is turned on, and if YES, step 13
02, it is determined whether or not the back cover 58 is opened. If the result of this determination is NO, the process advances to step 301 and the camera is placed in standby mode in preparation for the next process. Further, when the determination result in step 1302 is YES, the process returns to step 1301 and the rewind switch 21 is
The processes of steps 1301 and 1302 are repeated until the switch is turned off or the back cover 58 is closed.

If the determination in step 1301 is No, that is, if the rewind switch 21 is turned off, the motor 30
Step 1.303), 300
After driving for m5EC (step +304), the motor 30 is stopped (step 1305). The reason why the motor 30 is rotated slightly in this way is that when the rewinding process is completed, the switching planetary gear 47b is in the first gear of the rewinding side gear train 49, as explained in FIG. 2 above. 49
It meshes with a. Then, by opening the back cover 58, the switching planetary gear 47b is brought into mesh with the main drive gear 48 for film winding or zoom driving by the restoring force of the return spring 56c. However, since the rotation of the motor 30 has stopped at this time (step 1005), the rotation of the switching lever 47c stops at the position where the tip of the switching planetary gear 47b and the tip of the main drive gear 48 contact each other. There is a risk that it will happen. Therefore, by rotating the motor 30 for a short time at this time, the switching planetary gear 47b is brought into contact with the main drive gear 48 while rotating slightly, thereby avoiding contact between the tips of the teeth. When the switching planetary gear 47b is securely engaged with the main drive gear 48, the locking protrusion 55c of the lock lever 55 engages with the notch 56a of the rewinding switch lever 56, as described above.
engage with. Therefore, regardless of whether the motor 30 rotates forward or backward, the switching planetary gear 47b and the main drive gear 48
The meshing state with the film is maintained and the film can be wound and zoomed.
X drive can be performed reliably.

Then, in step 1306, the F mode, S lock mode, and 3S abnormal mode are reset, and the process proceeds to step 401 to charge the strobe.

Although this invention has been described in terms of mechanically switching the power transmission path from the rewinding gear train to the winding gear train, it can also be used to switch from the winding gear train to the rewinding gear train. It can also be used to switch between the telephoto drive gear and the wide drive gear of a zoom device.

[Effects of the Invention] As explained above, according to the camera with the film 11 automatic feeding device according to the present invention, when switching the power transmission path from the film rewinding system to the film winding system using the planetary gear train, When the planetary gear is mechanically forcibly turned to mesh with other transmission gears, the motor is rotated for a short period of time to slightly rotate the planetary gear, so these gears must be meshed reliably. Ru. Therefore, the meshing state between the planetary gear and the transmission gear is reliably locked, and rotation is reliably transmitted to the transmission gear no matter which direction the planetary gear rotates.

Furthermore, the motor can be rotated in one direction to advance and rewind the film, and rotated in the other direction to switch between telephoto drive and wide-angle drive of the zoom system, allowing you to switch between multiple drive systems with a single motor. Can be used. Therefore, it is possible to easily reduce the size and weight of the camera.

[Brief explanation of the drawing]

The drawings illustrate a preferred embodiment of the invention. FIG. 1 is a schematic circuit diagram showing the hardware of a camera with an automatic film feeder. FIG. 2 is an exploded perspective view schematically showing the mechanisms of a film feeding system and a zoom driving system of a camera in which film feeding and zooming are performed by a single motor. 3 to 14 are flowcharts for explaining the operation of the camera with an automatic film feeder according to the present invention. FIG. 3 is a flowchart 1- related to the initial setting when charging the power source battery. FIG. 4 shows flowchart 1 in a standby state in which the camera is on standby in preparation for the next operation. FIG. 5 is a flowchart showing strobe control in which the main capacitors of S1 to ROBO are charged and the strobe is maintained in a fully charged state for a predetermined period of time in preparation for the next operation. FIG. 6 is a flowchart relating to zoom processing since this camera is equipped with a zoom lens that can change the focal length of the shadow lens. 7th
The figure is a flowchart related to shutter processing during photographing. FIG. 8 is a flowchart relating to branch processing for proceeding to the next processing. Figure 9 shows the first frame sensor 1 that determines whether or not a film is loaded, winds the film leader when the film is loaded, and sends the first frame to the aperture. It is a flowchart. Figure 10 is. Flowcharts 1 to 1 relate to one-frame forwarding in which after one frame has been photographed, the next frame is sent to the aperture 1. FIG. 11 is a flowchart relating to the process of rewinding the film after all frames have been photographed. FIG. 12 is a flowchart relating to processing when the power supply battery is replaced while the film is being wound up, rewound, or zoomed. FIG. 13 is a flowchart relating to processing when the m-lid is opened by mistake while rewinding the film. FIG. 14 is a flowchart relating to a process of ensuring meshing of the transmission gear to prepare for the next operation when winding of the film is completed. 1...Microcomputer (CPU) 2...Main switch (SM) 5...1st stage release switch (SPI) 6...2nd stage release switch (SF3) 7...Wight isochi (SWIDE) 8 ... Tele switch (S position E) 14 ... Neutral switch 16 / Self switch (S S E L F) 21 ...
Rewind switch (S R) 24...Back cover switch (SB) 25.Power battery 28.Shutter control unit 30.
・Motor 31・・Motor driver circuit 32・
・Strobe control 4 toss spool 41a・・Spool gear 47a・
・Switching sun gear 47b ・Switching planet gear 47c ・Switching lever 47d ・Latching claw 48 ・Main drive gear
49... Rewinding side gear train 50b... Drive system switching free gear 51... Zoom drive gear train 53... Lens barrel 55. Lock lever 56.. Rewinding switch lever 57.. Back cover detection lever 58. ... Back cover patent applicant Fuji Photo Optical Equipment Co., Ltd.

Claims (1)

[Scope of Claims] A planetary gear that is equipped with a film feeding device that winds and rewinds a film by rotating a single motor in the same direction, and the connection is switched between a film winding gear train and a film rewinding gear train. is rotated relative to the sun gear by the rotation of the motor in the above-mentioned direction to link with the film rewind side gear train, and the planetary gear is forced to link with the film winding side using a locking means. In the camera according to the present invention, the planetary gear is linked to the winding side gear train in conjunction with the opening operation of the camera back after film rewinding is completed, and the motor is rotated for a short time. Camera with automatic feeding device.